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120龙门吊计算书

IT圈 admin 60浏览 0评论

2024年5月28日发(作者:勇晶灵)

邯郸市北恒工程机械有限公司 LDS

BH

12030三角桁架龙门吊计算书

LDS

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12030三角桁架门式起重机

计算书

计算:

审核:

日期:

北恒工程机械有限公司技术科

LDS

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8024三角桁架龙门吊计算书

一 起重机主要性能参数

1.1 额定起重量: 120t

1.2 起升高度: 10m

1.3 大车走行距: 30m

1.4 整机运行速度: 0-10m/min

1.5 吊梁行车运行速度: 0-5m/min

1.6 吊梁起落速度: ≤0.75m/min

1.7 适应坡度: ±1%

1.12 整机运行轨道和基础: 单轨P43 枕木间距,500~600mm

卵石道床>350mm

二 起重机结构组成

2.1 吊梁行车: 1台 (120t,五门滑轮组,双卷扬)

2.2 走行总成: 2套

2.3 左侧支腿: 1套

2.4 右侧支腿: 1套

2.5 托架总成: 4根

2.6 主横梁总成: 2根

2.7 吊梁扁担: 1套

2.8 端横联: 2套

2.9 电缆托架: 1套

2.10 行车电缆悬挂: 1套

2.11 行车行程限位: 1套

2.12 夹轨器: 4套

2.13 操作平台: 1套

2.14 电器系统: 1套

2.15 起重机运行轨道 1套

三 方案设计

注: 总体方案见图

LDS

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12030-00-000

3.1 吊梁行车

3.1.1 主要性能参数

额定起重量: 120t

运行轨距: 2000mm

轴距: 2500mm

卷扬起落速度: 8m/min

运行速度: 0-5m/min

驱动方式: 集中驱动

自重: 8t

卷筒直径: 400 mm

卷筒容绳量: 200 m

3.1.2 起升机构

已知:起重能力Q

=Q+W

吊具

=120+1.0=1211t

粗选:双卷扬,倍率m=12,滚动轴承滑轮组,效率η=0.92, 见《起重机设计手册》表3-2-11,

P223,则钢丝绳自由端静拉力S::S=Q

/(η× m)=121/(0.92×12)/2=5.4t,选择JM6t卷

扬机;钢丝绳破断拉力总和∑t:∑t=S×n/k=5×5/0.82=30.4t <32.3t,选择钢丝绳: 6×

1

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8024三角桁架龙门吊计算书

37-21.5-1700,GB1102-74,《起重机设计手册》P195。

钢丝绳偏角计算:

示意图如下

2

8

0

0

0

.

1

5

1

8

9

0

4

0

0

5

2

140

1、钢丝绳与滑轮轴垂直平面的偏角

β=arctg

90

2836.5

=1.82°

2、钢丝绳与卷筒轴垂直平面的偏角

α=arctg

140

4085

=1.96°

3.1.3 运行机构

3.1.3.1 车轮直径 《起重机设计手册》P355

已知 Q=120t、G

=8 t、集中驱动

2

90

2

8

3

6

.

5

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8024三角桁架龙门吊计算书

则 P

max

=(Q+G

)/4=32,P

min

=G

/4=2t,P

c

=

2P

max

P

min

=22t

3

车轮和轨道线接触,L=80mm,轨道方钢40×80,车轮材料ZG40Mn2,则由公式:

D≥

Pc2210000

==261mm

K1LC1C27.2801.171.25

式中 K

1

—常数 7.2N/mm

2

,δ

b

≥800MPa

L—踏面宽 80mm

C

1

—转速系数 1.17,v=5m/min,n=

C

2

—工作级别系数 1.25

选择 φ350mm轮组

3.1.3.2 运行静阻力(重载运行)

摩擦阻力 F

m

=(Q+G

)×w=(120+8)×0.015=1.92t

坡道阻力 F

P

=(Q+G

)×i =(120+8)×0.002=0.26t

风阻力 F

W

=C×K

h

×q×A=1.6×1.00×0.6×150×30×10

-4

=0.432t

式中C—风力系数 1.6 表1—3—11

K

h

—高度系数 1.00 表1—3—10 《起重机设计手册》

q—计算风压 0.6×150N/m

2

表1—3—9

A—迎风面积 30m

2

表1—3—17

运行静阻力F

j

=F

m

+F

p

+F

w

=1.92+0.26+0.432=2.612t=26120N

3.1.3.3 电机选择

静功率 Pj=

5

=4.5rpm

3.140.35

FjVo

261205

==1.2kw

1000

m

10000.9260

式中Vo—运行速度 5m/min

m—电机个数 2个

粗选 P=Kd×Pj=(1.1~1.3)×1.2=1.32~1.56kw

集中驱动 m=1 YEJ100L—6 1.5Kw/940rpm

《机械零件设计手册》下册、冶金版、P830

3.1.3.4 减速机

n

=Vo/(π×D)=5.7/(π×0.35)=5.2rpm

n

=940 rpm

i=n

/n

=940/5.2=180

3.1.3.5齿轮传动比: i

齿

=

Z

2

64

==3

Z

!

21

3.1.3.6 减速机传动比:i

=i/ i

齿

=60

3.1.3.7 选取减速机传动比: i

选取59

选取减速机型号:BLY22-59-1.5kw n

=940rpm

3.1.4 结构方案

6门滑轮组,吊梁扁担

见图吊梁行车

3.2 主从动台车轮组计算:

3.2.1.大车车轮踏面计算:

3.2.1.1.已知:Q=120t,G=72.5t,G

1

=8t

3

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8024三角桁架龙门吊计算书

3.2.1.2载荷计算:

1201.1872.5

=26.56t

8

72.58

p

min

==10 t

8

2PP

min

p

c

=

max

=21t

3

P

max

=

3.2.1.3 车轮踏面接触强度计算:

P

C

≤K

1

DLC

1

C

2

车轮和轨道线接触,L=70mm,P

43

轨道,车轮材料ZG40Mn2则由公式:

2010

4

Pc

D≥==339 mm

7.2701.171

K

1

LC

1

C

2

式中 K

1

—常数 7.2N/mm

2

,δ

b

≥800MPa

L—踏面宽 70mm

C

1

—转速系数 1.15,v=10m/min,n=

C

2

—工作级别系数 1.0

3.2.1.4 车轮直径选取: D=500 mm

3.2.2. 大车驱动功率计算:

3.2.2.1 已知:D=φ350mm v=10 m/min

3.2.2.2 摩阻:F

m

=(Q+G)ω=(120+72.5)×0.015=2.88t

3.2.2.3 坡阻:F

p

=(Q+G)i=(120+72.5)×2%=3.85t

3.2.2.4 风阻:F

ω

=CK

h

QA=1.6×1×0.6×150×30×10

-4

=0.432t

式中C—风力系数 1.6 表1—3—11

K

h

—高度系数 1.00 表1—3—10 《起重机设计手册》

q—计算风压 0.6×150N/m

2

表1—3—9

A—迎风面积 30m

2

表1—3—17

3.2.2.5 运行静阻力:F

j

=F

m

+F

p

+F

ω

=2.88+3.85+0.432=7.162t

3.2.2.6 电机驱动功率:P

j

=

10

=9.1rpm

3.140.35

7162010

=6.63kw

1000m

10000.9260

=

F

j

0

3.2.2.7 确定实际功率:P=K

d

P

j

=(1.1~1.3)P

j

=7.29~8.62kw

3.2.2.8 确定驱动电机:YEJ160M

1

-6 P=7.5kw n=970 rpm

⑴ 已知: D=φ500 mm,V=10m/min,n

=970rpm

⑵ 车轮转速: n

=

V

=6.3rpm

D

=⑶ 整机传动比: i=

n

n

970

=153

6.3

⑷ 齿轮传动比: i

齿

=

Z

2

88

==3.4

Z

!

26

4

⑸ 减速机传动比: i

=i/ i

齿

=45

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8024三角桁架龙门吊计算书

⑹ 选取减速机传动比: i

选取43

⑺ 选取减速机型号: BLY33-43-7.5kw n

=970rpm

(8) 实际走行速度:V= n

πD=6.3×π×0.5=9.9m/min

3.3.主横梁综合性能计算

3.3.1.已知:额定起重量: Q=120t

龙门吊整机重量:G= 72.5t

吊梁行车重量: G

1

=8t

龙门吊跨度: L=30m,

3.3.2.主横梁主要参数的选取:(如图1)

桁高:h=2.06 m , 桁宽:H=0.9m

16001600

N

3

71.57°

16

57.99°

0

0

0

1

N

2

3.3.3.主横梁截面计算和选取:(按单横梁计算)材料:

Q345B [σ]=230MPa

3.3.3.1.上弦杆计算和选取:(按压杆)

3.3.3.1.1.已知: Q=120 t G

=8 t q=0.65 t/m

L=30m

P=

1

2

(1.1Q+ G

)=70 t

计算主横梁最大弯矩:

M

qL

2

max

=

1

PL

2

4

8

5

N

1

78.23°

N

2

1000

260

100

06

91

1

0

9

12

1

2

4

0

0

2

4

0

0

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8024三角桁架龙门吊计算书

1.070301.00.6530

2

==598t.m

48

3.3.3.1.2计算轴向力:

N

=N

=

M

max

598

==249t

h

2.4

3.3.3.1.3计算上弦杆所需最小截面积:

N

24910

4

A≥==13532mm

2

[

]

0.8230

3.3.3.1.4初选上弦杆截面:(板材,如右图)

A= 20096mm

2

材料:Q345B [σ]=230MPa

3.3.3.1.5计算上弦杆截面性能参数:

节间有效长度:L

x

=L

r

=1.6 m

⑴ 计算X向性能参数:

截面惯性矩: I

x

=36005cm

4

截面抗压抗弯模量: W

x

=

I

x

y

x

=

36005

=1895cm

3

19

压杆截面的惯性半径: r

x

=

I

x

36005

==13.4 cm

200.96

A

L

x

160

==11.9

r

x

13.4

压杆的柔度(长细比):λ

x

=

压杆的折减系数: φ

x

=0.99

查《机械设计手册》第一卷P1-152表1-1-100

⑵ 计算Y向性能参数:

截面惯性矩: I

y

=7316cm

4

截面抗弯模量: W

y

=

I

y

y

y

=

7316

=582 cm

3

13

压杆截面的惯性半径: r

y

=

Iy7316

==6cm

200.96

A

压杆的柔度(长细比):λ

y

=

L

y

r

y

=

160

=26.7

6

压杆的折减系数: φ

y

=0.98

查《机械设计手册》第一卷P1-152表1-1-100

⑶节间力学计算:已知:Q=120t,G

1

=8t,m=4,偏载系数ψ=1.1

QG

1.11208

轮压:P

===35 t

m

4

6

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8024三角桁架龙门吊计算书

节间弯距:M

j

=

P

L

j

6

P

L

j

12

=

351.6

=9.33t.m,L

j

=1.6m

6

351.6

=4.67t.m

12

节点弯距:M

d=

=

3.3.3.1.6上弦杆性能校核计算:

N

M

j

24510

4

9.3310

4

⑴强度校核:σ===121.9+49.2=171.1Mpa

200961895

AW

x

σ<[σ]=230 Mpa 通过验算满足使用要求

⑵刚度校核:λ=

L

min

=

160

=26.7<[λ]=100 通过验算满足使用要求

6

N

M

j

21810

4

9.3310

4

⑶稳定性校核:σ

x

===128.3+49.2=177.5MPa

1895

x

AW

x

0.9520096

σ

x

<[σ]=230 Mpa 通过验算满足使用要求

3.3.3.2.下弦杆计算和选取:(按压杆)

3.3.3.2.1计算轴向力:(由上知)

N

=N

=

M

max

598

==249t

h

2.4

240

100

3.3.3.2.2计算下弦杆所需最小截面积:材料:Q235B [σ]=170MPa

N

24910

4

A≥==7323mm

2

2[

]

2170

3.3.3.2.3初选下弦杆截面:(单根,背靠背,如右图)

A=12325mm

2

3.3.3.2.4计算下弦杆截面性能参数:

节间有效长度:L

x

=L

r

=1.6 m

⑴ 计算X向性能参数:

截面惯性矩: I

x

=10306cm

4

截面抗拉压弯模量: W

x

=

2

2

4

2[16材料:Q235B [σ]=170MPa

I

x

y

x

=

10306

=920 cm

3

11.2

压杆截面的惯性半径: r

x

=

I

x

10306

==9.1cm

123.25

A

L

x

160

==17.58

r

x

9.1

压杆的柔度(长细比):λ

x

=

压杆的折减系数: φ

x

=0.98

查《机械设计手册》第一卷P1-152表1-1-100

7

1

2

1

2

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8024三角桁架龙门吊计算书

⑵ 计算Y向性能参数:

截面惯性矩: I

y

=6222cm

4

截面抗弯模量: W

y

=

I

y

y

y

=

6222

=497.76cm

3

12.5

压杆截面的惯性半径: r

y

=

Iy6222

==7.1 cm

123.25

A

压杆的柔度(长细比):λ

y

=

L

y

r

y

=

160

=22.5

7.1

压杆的折减系数: φ

y

=0.97

查《机械设计手册》第一卷P1-152表1-1-100

3.3.3.2.5下弦杆性能校核计算:

N

24910

4

⑴强度校核:σ===101Mpa

212325

A

j

σ<[σ]=170 Mpa 材料Q235B通过验算满足使用要求

⑵刚度校核:λ=

L

min

=

160

=22.5<[λ]=100 通过验算满足使用要求

7.1

N

24910

4

⑶稳定性校核:σ

x

===104MPa

0.97212325

2

A

j

σ

x

<[σ]=170 Mpa 材料Q235B通过验算满足使用要求

3.3.3.3腹杆计算和选取(压杆)

3.3.3.3.1.计算腹杆集中载荷:材料:Q235B [σ]=170MPa

已知:已知: Q=120 t G

=8 t q=0.65 t/m L=30m

N=

1.1QG

2

q34

=81t

2

3.3.3.3.2 计算轴向力:

N81

==41.3t

2sin

2sin78.23

N141.3

N

3

= ==43.5t

sin71.6sin71.6

斜腹杆:N

1

=

式中:各角度由图1可得

3.3.3.3.2 计算腹杆所需最小截面积

N

3

43.510

4

A≥ ==3198mm

2

[

]

0.8170

3.3.3.3.3 初选腹杆截面:材料 Q235B [σ]=170MPa(对扣 图2)

方管120*120*8 (A=3419 mm

2

q=26.84 kg/m)

3.3.3.3.4 计算腹杆截面性能参数:

8

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8024三角桁架龙门吊计算书

节间有效长度:L

x

=L

y

=L=

⑴ 计算X向性能参数:

截面惯性矩: I

x

=687 cm

4

截面抗拉压弯模量: W

x

=

2.4

=2.58m=258cm

sin78.23sin71.6

120

I

x

y

x

=

压杆截面的惯性半径: r

x

=

I

x

687

==4.48 cm

34.19

A

L

x

258

==57 图2

r

x

4.48

压杆的柔度(长细比):λ

x

=

压杆的折减系数: φ

x

=0.84

查《机械设计手册》第一卷P1-152表1-1-100

⑵ 计算Y向性能参数:

同上

3.3.3.3.5 腹杆性能校核计算:

N

3

43.510

4

⑴强度校核:σ===127Mpa

3419

A

j

σ<[σ]=170 Mpa 材料:Q235B通过验算满足使用要求

⑵刚度校核:λ=

L

min

=

258

=57<[λ]=100 材料:Q235B通过验算满足使用要求

4.48

N

3

43.510

4

⑶稳定性校核:σ

x

===151MPa

0.843419

X

A

j

σ

x

<[σ]=170 Mpa 材质:Q235B通过验算满足使用要求

3.3.3.4 水平杆计算和选取(压杆)

3.3.3.4.1 水平杆轴向力计算:

N

2

= N

1

×cos78.23°=8.4t (见腹杆轴向力计算)

3.3.3.4.2 水平杆所需最小截面积:

N

2

8.410

4

A≥==617mm

2

[

]

0.8170

3.3.3.4.3 初选水平杆截面:材料 Q235B [σ]=170MPa

槽钢[12 A=1568 mm

2

q=12kg/m

3.3.3.4.4 计算水平杆截面性能参数:

节间有效长度: L

x

=L

y

=1m=100cm

⑴ 计算X向性能参数:

截面惯性矩: I

x

=388 cm

4

9

1

2

0

687

=114.5cm

3

6

LDS

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8024三角桁架龙门吊计算书

截面抗拉压弯模量: W

x

=

I

x

y

x

=

388

=61.6cm

3

6.3

压杆截面的惯性半径: r

x

=

I

x

388

==4.97cm

15.68

A

L

x

100

==20.1

r

x

4.97

压杆的柔度(长细比):λ

x

=

压杆的折减系数: φ

x

=0.98

查《机械设计手册》第一卷P1-152表1-1-100

⑵ 计算Y向性能参数:

截面惯性矩: I

y

=38 cm

4

截面抗弯模量: W

y

=

I

y

y

y

=

38

=23.9cm

3

1.59

压杆截面的惯性半径: r

y

=

Iy38

==1.5cm

15.68

A

压杆的柔度(长细比):λ

y

=

L

y

r

y

=

100

=66

1.5

压杆的折减系数: φ

y

=0.82

查《机械设计手册》第一卷P1-152表1-1-100

3.3.3.4.5 水平杆性能校核计算:

N

2

8.410

4

⑴强度校核:σ===53.57Mpa

1568

A

j

σ<[σ]=170 Mpa 材质:Q235B通过验算满足使用要求

⑵刚度校核:λ=

L

min

=

100

=66<[λ]=100 材质:Q235B通过验算满足使用要求

1.5

N

2

8.410

4

⑶稳定性校核:σ

x

===65MPa

0.821568

X

A

j

σ

x

<[σ]=170 Mpa 材质:Q235B通过验算满足使用要求

N

2

8.410

4

σ

y

===54.66MPa

0.981568

y

A

j

σ

y

<[σ]=170 Mpa 材质:Q235B通过验算满足使用要求

节点计算

腹杆受力N

3

=43.5t=435 kN ,节点板厚度选用δ12

焊缝高度k=8 mm 共四条焊缝

10

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8024三角桁架龙门吊计算书

每条焊缝受力N=

435

=100.75kN

4

N100.7510

3

焊缝长度

l

w

119mm

0.7

f

h

f

[

]0.718150

式中:β

f

=1 h

f

=8 mm [τ]=150 MPa

(4) 上弦阳头焊缝计算

共四条焊缝,采用开坡口焊接,坡口采用20×45°

每条焊缝受力N=2490/4=622.5KN

N622.510

3

l

w

296mm

0.7

f

h

f

[

]0.7120150

下弦阳头计算略。

3.3.3.5 主横梁整体性能验算:

3.3.3.5.1 主横梁整体截面性能参数:

① 主横梁截面参数:桁宽H=1m,桁高h=2.4m,节间L

j

=1.6m

跨度L=30m

② 主横梁整体截面惯性矩: I =6983912cm

4

③ 主横梁整体截面抗弯模量:W

=

I

6983912

==42925cm

3

y

162.7

W

=

3.3.3.5.2主横梁整体刚度验算:

I

6983912

==56595 cm

3

y

123.4

6030

3

1000

50.6530

4

1000

=+

482.16983912

3842.16983912

LL

=2.301+0.467=2.768cm=<[f ]=

1083700

PL

f=+

48EI

3

5qL

4

384EI

主横梁整体性能参数通过计算

3.3.3.5 .4主横梁联接销轴、阴阳头耳板计算及选取

3.3.3.5.5主横梁联接销轴计算及选取(双销)

N

2.4910

6

拉力F===1.245×10

6

KN

2

2

销轴材质40Cr [τ]=

5400.6

1.333

=235 MPa

上弦销轴直径D

1

2

=

4F

=6748mm

2

235

4F

=3374 mm

2

2

235

11

双销 D=82mm, 取D=100mm

下弦销轴直径D

1

2

=

LDS

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8024三角桁架龙门吊计算书

双销 D=58mm, 取D=80mm

3.3.3.5.6联接耳板厚度计算: 《起重机设计手册》P734

σ=

kF

≤[σ]

2a

F——联接板或耳板所传递的内力;F=N=1.467×10

6

KN。

a——孔两边板的宽度;上弦取244mm,下弦取114mm。

δ——板的厚度;

[σ]——板材料的许用应力;[σ]= σ

S

/1.5=230MPa

式中:K——系数取1.2~14,计算时多取偏大值;

FK

2.4910

6

1.4

上弦单耳厚度:δ≥==62mm 取δ=100mm

244230

a[

]

2.4910

6

1.4

FK

上弦双耳厚度:δ≥==36mm 取δ=50mm

2a[

]

2244230

2.4910

6

1.4

FK

下弦单耳厚度:δ≥==66mm 取δ=100mm

2a[

]

2114230

FK

2.4910

6

1.4

下弦双耳厚度:δ≥==33mm 取δ=40mm

4a[

]

4114230

3.4.1托架载荷分析:见图

1m1m

y

P=23t

R

A

P=23tP=23t

R

B

P=23t

x

2m

3.5m

(一)托架载荷分析图

y

23t

-23t

y

(二)剪力图

x

-11.5tm

(三)弯矩图

12

23t

-23t

x

-11.5tm

LDS

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8024三角桁架龙门吊计算书

Q

=120×1.1+8+44=184t

Q=184/4=46t

N =46/2=23t M=PL=23×0.5=11.5tm

试选截面,如右图 材料:Q235B [σ]=170MPa

截面积: S=179.79cm

2

截面惯性距I

a

=35177㎝

4

截面模量:W

=

350

190

35177

=2131㎝

3

16.5

Mmax115000

==53.9MPa<[σ]=170MPa

Wmin2131

3

3

0

1

0

3.4.2 托架截面强度及刚度校核计算:

计算最大应力:σ

max

=

Pm

2

l2310

4

0.5

2

20.5

f(1

)(1)

118

3EI2

32.1103517710

悬臂端刚度:

m

0.0012m

0.0013m

350

托架强度与刚度验算通过

3.4.4 支腿综合性能计算:

3.4.4.1支腿拉压杆强度计算:

3.4.4.2支腿最大载荷分析:

P=1.1Q+G

小车

+q×L/2=151t

P

=

P151

==77.35t

2sin

2sin77.43

(吊梁行车吊梁时移至支腿极限位置时)

3.4.4.3计算支腿所需最小截面积:材料:Q235B [σ]=170MPa

77.3510

4

A≥==5687mm

2

[

]

0.8170

3.4.4.4初选支腿型材:材料Q235B

主支腿:300×300×12.5 A=14026mm

2

附支腿:180×180×8 A=5280mm

2

材料许用应力:[σ]=170Mpa

3.4.4.5支腿截面性能参数计算:

节间有效长度: L

x

=L

y

=

⑴ 计算X向性能参数:

截面惯性矩: I

x

=19082 cm

4

截面抗拉压弯模量:W

x

=

P

9

m=922cm

sin77.43

19082

=1272cm

3

15

I

x

19082

==11.67cm

140.26

A

压杆截面的惯性半径: r

x

=

13

LDS

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8024三角桁架龙门吊计算书

压杆的柔度(长细比):λ

x

=

L

x

922

==79

r

x

11.67

压杆的折减系数: φ

x

=0.79

查《机械设计手册》第一卷P1-152表1-1-100

⑵ 计算Y向性能参数:(与X向相同)

3.4.4.6支腿性能校核计算: 材料:Q235B [σ]=170MPa

77.3510

4

⑴强度校核:σ===55Mpa

14026

A

σ<[σ]=170 Mpa 通过验算满足使用要求

⑵刚度校核:λ=

P

L

min

=

922

=79<[λ]=100 通过验算满足使用要求

11.67

77.3510

4

⑶稳定性校核:σ

x

===69MPa

0.7914026

X

A

σ

x

<[σ]=170 Mpa 材质:Q235B通过验算满足使用要求

邯郸市北恒工程机械有限公司技术科

P

14

2024年5月28日发(作者:勇晶灵)

邯郸市北恒工程机械有限公司 LDS

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12030三角桁架龙门吊计算书

LDS

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12030三角桁架门式起重机

计算书

计算:

审核:

日期:

北恒工程机械有限公司技术科

LDS

BH

8024三角桁架龙门吊计算书

一 起重机主要性能参数

1.1 额定起重量: 120t

1.2 起升高度: 10m

1.3 大车走行距: 30m

1.4 整机运行速度: 0-10m/min

1.5 吊梁行车运行速度: 0-5m/min

1.6 吊梁起落速度: ≤0.75m/min

1.7 适应坡度: ±1%

1.12 整机运行轨道和基础: 单轨P43 枕木间距,500~600mm

卵石道床>350mm

二 起重机结构组成

2.1 吊梁行车: 1台 (120t,五门滑轮组,双卷扬)

2.2 走行总成: 2套

2.3 左侧支腿: 1套

2.4 右侧支腿: 1套

2.5 托架总成: 4根

2.6 主横梁总成: 2根

2.7 吊梁扁担: 1套

2.8 端横联: 2套

2.9 电缆托架: 1套

2.10 行车电缆悬挂: 1套

2.11 行车行程限位: 1套

2.12 夹轨器: 4套

2.13 操作平台: 1套

2.14 电器系统: 1套

2.15 起重机运行轨道 1套

三 方案设计

注: 总体方案见图

LDS

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12030-00-000

3.1 吊梁行车

3.1.1 主要性能参数

额定起重量: 120t

运行轨距: 2000mm

轴距: 2500mm

卷扬起落速度: 8m/min

运行速度: 0-5m/min

驱动方式: 集中驱动

自重: 8t

卷筒直径: 400 mm

卷筒容绳量: 200 m

3.1.2 起升机构

已知:起重能力Q

=Q+W

吊具

=120+1.0=1211t

粗选:双卷扬,倍率m=12,滚动轴承滑轮组,效率η=0.92, 见《起重机设计手册》表3-2-11,

P223,则钢丝绳自由端静拉力S::S=Q

/(η× m)=121/(0.92×12)/2=5.4t,选择JM6t卷

扬机;钢丝绳破断拉力总和∑t:∑t=S×n/k=5×5/0.82=30.4t <32.3t,选择钢丝绳: 6×

1

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8024三角桁架龙门吊计算书

37-21.5-1700,GB1102-74,《起重机设计手册》P195。

钢丝绳偏角计算:

示意图如下

2

8

0

0

0

.

1

5

1

8

9

0

4

0

0

5

2

140

1、钢丝绳与滑轮轴垂直平面的偏角

β=arctg

90

2836.5

=1.82°

2、钢丝绳与卷筒轴垂直平面的偏角

α=arctg

140

4085

=1.96°

3.1.3 运行机构

3.1.3.1 车轮直径 《起重机设计手册》P355

已知 Q=120t、G

=8 t、集中驱动

2

90

2

8

3

6

.

5

LDS

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8024三角桁架龙门吊计算书

则 P

max

=(Q+G

)/4=32,P

min

=G

/4=2t,P

c

=

2P

max

P

min

=22t

3

车轮和轨道线接触,L=80mm,轨道方钢40×80,车轮材料ZG40Mn2,则由公式:

D≥

Pc2210000

==261mm

K1LC1C27.2801.171.25

式中 K

1

—常数 7.2N/mm

2

,δ

b

≥800MPa

L—踏面宽 80mm

C

1

—转速系数 1.17,v=5m/min,n=

C

2

—工作级别系数 1.25

选择 φ350mm轮组

3.1.3.2 运行静阻力(重载运行)

摩擦阻力 F

m

=(Q+G

)×w=(120+8)×0.015=1.92t

坡道阻力 F

P

=(Q+G

)×i =(120+8)×0.002=0.26t

风阻力 F

W

=C×K

h

×q×A=1.6×1.00×0.6×150×30×10

-4

=0.432t

式中C—风力系数 1.6 表1—3—11

K

h

—高度系数 1.00 表1—3—10 《起重机设计手册》

q—计算风压 0.6×150N/m

2

表1—3—9

A—迎风面积 30m

2

表1—3—17

运行静阻力F

j

=F

m

+F

p

+F

w

=1.92+0.26+0.432=2.612t=26120N

3.1.3.3 电机选择

静功率 Pj=

5

=4.5rpm

3.140.35

FjVo

261205

==1.2kw

1000

m

10000.9260

式中Vo—运行速度 5m/min

m—电机个数 2个

粗选 P=Kd×Pj=(1.1~1.3)×1.2=1.32~1.56kw

集中驱动 m=1 YEJ100L—6 1.5Kw/940rpm

《机械零件设计手册》下册、冶金版、P830

3.1.3.4 减速机

n

=Vo/(π×D)=5.7/(π×0.35)=5.2rpm

n

=940 rpm

i=n

/n

=940/5.2=180

3.1.3.5齿轮传动比: i

齿

=

Z

2

64

==3

Z

!

21

3.1.3.6 减速机传动比:i

=i/ i

齿

=60

3.1.3.7 选取减速机传动比: i

选取59

选取减速机型号:BLY22-59-1.5kw n

=940rpm

3.1.4 结构方案

6门滑轮组,吊梁扁担

见图吊梁行车

3.2 主从动台车轮组计算:

3.2.1.大车车轮踏面计算:

3.2.1.1.已知:Q=120t,G=72.5t,G

1

=8t

3

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8024三角桁架龙门吊计算书

3.2.1.2载荷计算:

1201.1872.5

=26.56t

8

72.58

p

min

==10 t

8

2PP

min

p

c

=

max

=21t

3

P

max

=

3.2.1.3 车轮踏面接触强度计算:

P

C

≤K

1

DLC

1

C

2

车轮和轨道线接触,L=70mm,P

43

轨道,车轮材料ZG40Mn2则由公式:

2010

4

Pc

D≥==339 mm

7.2701.171

K

1

LC

1

C

2

式中 K

1

—常数 7.2N/mm

2

,δ

b

≥800MPa

L—踏面宽 70mm

C

1

—转速系数 1.15,v=10m/min,n=

C

2

—工作级别系数 1.0

3.2.1.4 车轮直径选取: D=500 mm

3.2.2. 大车驱动功率计算:

3.2.2.1 已知:D=φ350mm v=10 m/min

3.2.2.2 摩阻:F

m

=(Q+G)ω=(120+72.5)×0.015=2.88t

3.2.2.3 坡阻:F

p

=(Q+G)i=(120+72.5)×2%=3.85t

3.2.2.4 风阻:F

ω

=CK

h

QA=1.6×1×0.6×150×30×10

-4

=0.432t

式中C—风力系数 1.6 表1—3—11

K

h

—高度系数 1.00 表1—3—10 《起重机设计手册》

q—计算风压 0.6×150N/m

2

表1—3—9

A—迎风面积 30m

2

表1—3—17

3.2.2.5 运行静阻力:F

j

=F

m

+F

p

+F

ω

=2.88+3.85+0.432=7.162t

3.2.2.6 电机驱动功率:P

j

=

10

=9.1rpm

3.140.35

7162010

=6.63kw

1000m

10000.9260

=

F

j

0

3.2.2.7 确定实际功率:P=K

d

P

j

=(1.1~1.3)P

j

=7.29~8.62kw

3.2.2.8 确定驱动电机:YEJ160M

1

-6 P=7.5kw n=970 rpm

⑴ 已知: D=φ500 mm,V=10m/min,n

=970rpm

⑵ 车轮转速: n

=

V

=6.3rpm

D

=⑶ 整机传动比: i=

n

n

970

=153

6.3

⑷ 齿轮传动比: i

齿

=

Z

2

88

==3.4

Z

!

26

4

⑸ 减速机传动比: i

=i/ i

齿

=45

LDS

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8024三角桁架龙门吊计算书

⑹ 选取减速机传动比: i

选取43

⑺ 选取减速机型号: BLY33-43-7.5kw n

=970rpm

(8) 实际走行速度:V= n

πD=6.3×π×0.5=9.9m/min

3.3.主横梁综合性能计算

3.3.1.已知:额定起重量: Q=120t

龙门吊整机重量:G= 72.5t

吊梁行车重量: G

1

=8t

龙门吊跨度: L=30m,

3.3.2.主横梁主要参数的选取:(如图1)

桁高:h=2.06 m , 桁宽:H=0.9m

16001600

N

3

71.57°

16

57.99°

0

0

0

1

N

2

3.3.3.主横梁截面计算和选取:(按单横梁计算)材料:

Q345B [σ]=230MPa

3.3.3.1.上弦杆计算和选取:(按压杆)

3.3.3.1.1.已知: Q=120 t G

=8 t q=0.65 t/m

L=30m

P=

1

2

(1.1Q+ G

)=70 t

计算主横梁最大弯矩:

M

qL

2

max

=

1

PL

2

4

8

5

N

1

78.23°

N

2

1000

260

100

06

91

1

0

9

12

1

2

4

0

0

2

4

0

0

LDS

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8024三角桁架龙门吊计算书

1.070301.00.6530

2

==598t.m

48

3.3.3.1.2计算轴向力:

N

=N

=

M

max

598

==249t

h

2.4

3.3.3.1.3计算上弦杆所需最小截面积:

N

24910

4

A≥==13532mm

2

[

]

0.8230

3.3.3.1.4初选上弦杆截面:(板材,如右图)

A= 20096mm

2

材料:Q345B [σ]=230MPa

3.3.3.1.5计算上弦杆截面性能参数:

节间有效长度:L

x

=L

r

=1.6 m

⑴ 计算X向性能参数:

截面惯性矩: I

x

=36005cm

4

截面抗压抗弯模量: W

x

=

I

x

y

x

=

36005

=1895cm

3

19

压杆截面的惯性半径: r

x

=

I

x

36005

==13.4 cm

200.96

A

L

x

160

==11.9

r

x

13.4

压杆的柔度(长细比):λ

x

=

压杆的折减系数: φ

x

=0.99

查《机械设计手册》第一卷P1-152表1-1-100

⑵ 计算Y向性能参数:

截面惯性矩: I

y

=7316cm

4

截面抗弯模量: W

y

=

I

y

y

y

=

7316

=582 cm

3

13

压杆截面的惯性半径: r

y

=

Iy7316

==6cm

200.96

A

压杆的柔度(长细比):λ

y

=

L

y

r

y

=

160

=26.7

6

压杆的折减系数: φ

y

=0.98

查《机械设计手册》第一卷P1-152表1-1-100

⑶节间力学计算:已知:Q=120t,G

1

=8t,m=4,偏载系数ψ=1.1

QG

1.11208

轮压:P

===35 t

m

4

6

LDS

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8024三角桁架龙门吊计算书

节间弯距:M

j

=

P

L

j

6

P

L

j

12

=

351.6

=9.33t.m,L

j

=1.6m

6

351.6

=4.67t.m

12

节点弯距:M

d=

=

3.3.3.1.6上弦杆性能校核计算:

N

M

j

24510

4

9.3310

4

⑴强度校核:σ===121.9+49.2=171.1Mpa

200961895

AW

x

σ<[σ]=230 Mpa 通过验算满足使用要求

⑵刚度校核:λ=

L

min

=

160

=26.7<[λ]=100 通过验算满足使用要求

6

N

M

j

21810

4

9.3310

4

⑶稳定性校核:σ

x

===128.3+49.2=177.5MPa

1895

x

AW

x

0.9520096

σ

x

<[σ]=230 Mpa 通过验算满足使用要求

3.3.3.2.下弦杆计算和选取:(按压杆)

3.3.3.2.1计算轴向力:(由上知)

N

=N

=

M

max

598

==249t

h

2.4

240

100

3.3.3.2.2计算下弦杆所需最小截面积:材料:Q235B [σ]=170MPa

N

24910

4

A≥==7323mm

2

2[

]

2170

3.3.3.2.3初选下弦杆截面:(单根,背靠背,如右图)

A=12325mm

2

3.3.3.2.4计算下弦杆截面性能参数:

节间有效长度:L

x

=L

r

=1.6 m

⑴ 计算X向性能参数:

截面惯性矩: I

x

=10306cm

4

截面抗拉压弯模量: W

x

=

2

2

4

2[16材料:Q235B [σ]=170MPa

I

x

y

x

=

10306

=920 cm

3

11.2

压杆截面的惯性半径: r

x

=

I

x

10306

==9.1cm

123.25

A

L

x

160

==17.58

r

x

9.1

压杆的柔度(长细比):λ

x

=

压杆的折减系数: φ

x

=0.98

查《机械设计手册》第一卷P1-152表1-1-100

7

1

2

1

2

LDS

BH

8024三角桁架龙门吊计算书

⑵ 计算Y向性能参数:

截面惯性矩: I

y

=6222cm

4

截面抗弯模量: W

y

=

I

y

y

y

=

6222

=497.76cm

3

12.5

压杆截面的惯性半径: r

y

=

Iy6222

==7.1 cm

123.25

A

压杆的柔度(长细比):λ

y

=

L

y

r

y

=

160

=22.5

7.1

压杆的折减系数: φ

y

=0.97

查《机械设计手册》第一卷P1-152表1-1-100

3.3.3.2.5下弦杆性能校核计算:

N

24910

4

⑴强度校核:σ===101Mpa

212325

A

j

σ<[σ]=170 Mpa 材料Q235B通过验算满足使用要求

⑵刚度校核:λ=

L

min

=

160

=22.5<[λ]=100 通过验算满足使用要求

7.1

N

24910

4

⑶稳定性校核:σ

x

===104MPa

0.97212325

2

A

j

σ

x

<[σ]=170 Mpa 材料Q235B通过验算满足使用要求

3.3.3.3腹杆计算和选取(压杆)

3.3.3.3.1.计算腹杆集中载荷:材料:Q235B [σ]=170MPa

已知:已知: Q=120 t G

=8 t q=0.65 t/m L=30m

N=

1.1QG

2

q34

=81t

2

3.3.3.3.2 计算轴向力:

N81

==41.3t

2sin

2sin78.23

N141.3

N

3

= ==43.5t

sin71.6sin71.6

斜腹杆:N

1

=

式中:各角度由图1可得

3.3.3.3.2 计算腹杆所需最小截面积

N

3

43.510

4

A≥ ==3198mm

2

[

]

0.8170

3.3.3.3.3 初选腹杆截面:材料 Q235B [σ]=170MPa(对扣 图2)

方管120*120*8 (A=3419 mm

2

q=26.84 kg/m)

3.3.3.3.4 计算腹杆截面性能参数:

8

LDS

BH

8024三角桁架龙门吊计算书

节间有效长度:L

x

=L

y

=L=

⑴ 计算X向性能参数:

截面惯性矩: I

x

=687 cm

4

截面抗拉压弯模量: W

x

=

2.4

=2.58m=258cm

sin78.23sin71.6

120

I

x

y

x

=

压杆截面的惯性半径: r

x

=

I

x

687

==4.48 cm

34.19

A

L

x

258

==57 图2

r

x

4.48

压杆的柔度(长细比):λ

x

=

压杆的折减系数: φ

x

=0.84

查《机械设计手册》第一卷P1-152表1-1-100

⑵ 计算Y向性能参数:

同上

3.3.3.3.5 腹杆性能校核计算:

N

3

43.510

4

⑴强度校核:σ===127Mpa

3419

A

j

σ<[σ]=170 Mpa 材料:Q235B通过验算满足使用要求

⑵刚度校核:λ=

L

min

=

258

=57<[λ]=100 材料:Q235B通过验算满足使用要求

4.48

N

3

43.510

4

⑶稳定性校核:σ

x

===151MPa

0.843419

X

A

j

σ

x

<[σ]=170 Mpa 材质:Q235B通过验算满足使用要求

3.3.3.4 水平杆计算和选取(压杆)

3.3.3.4.1 水平杆轴向力计算:

N

2

= N

1

×cos78.23°=8.4t (见腹杆轴向力计算)

3.3.3.4.2 水平杆所需最小截面积:

N

2

8.410

4

A≥==617mm

2

[

]

0.8170

3.3.3.4.3 初选水平杆截面:材料 Q235B [σ]=170MPa

槽钢[12 A=1568 mm

2

q=12kg/m

3.3.3.4.4 计算水平杆截面性能参数:

节间有效长度: L

x

=L

y

=1m=100cm

⑴ 计算X向性能参数:

截面惯性矩: I

x

=388 cm

4

9

1

2

0

687

=114.5cm

3

6

LDS

BH

8024三角桁架龙门吊计算书

截面抗拉压弯模量: W

x

=

I

x

y

x

=

388

=61.6cm

3

6.3

压杆截面的惯性半径: r

x

=

I

x

388

==4.97cm

15.68

A

L

x

100

==20.1

r

x

4.97

压杆的柔度(长细比):λ

x

=

压杆的折减系数: φ

x

=0.98

查《机械设计手册》第一卷P1-152表1-1-100

⑵ 计算Y向性能参数:

截面惯性矩: I

y

=38 cm

4

截面抗弯模量: W

y

=

I

y

y

y

=

38

=23.9cm

3

1.59

压杆截面的惯性半径: r

y

=

Iy38

==1.5cm

15.68

A

压杆的柔度(长细比):λ

y

=

L

y

r

y

=

100

=66

1.5

压杆的折减系数: φ

y

=0.82

查《机械设计手册》第一卷P1-152表1-1-100

3.3.3.4.5 水平杆性能校核计算:

N

2

8.410

4

⑴强度校核:σ===53.57Mpa

1568

A

j

σ<[σ]=170 Mpa 材质:Q235B通过验算满足使用要求

⑵刚度校核:λ=

L

min

=

100

=66<[λ]=100 材质:Q235B通过验算满足使用要求

1.5

N

2

8.410

4

⑶稳定性校核:σ

x

===65MPa

0.821568

X

A

j

σ

x

<[σ]=170 Mpa 材质:Q235B通过验算满足使用要求

N

2

8.410

4

σ

y

===54.66MPa

0.981568

y

A

j

σ

y

<[σ]=170 Mpa 材质:Q235B通过验算满足使用要求

节点计算

腹杆受力N

3

=43.5t=435 kN ,节点板厚度选用δ12

焊缝高度k=8 mm 共四条焊缝

10

LDS

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8024三角桁架龙门吊计算书

每条焊缝受力N=

435

=100.75kN

4

N100.7510

3

焊缝长度

l

w

119mm

0.7

f

h

f

[

]0.718150

式中:β

f

=1 h

f

=8 mm [τ]=150 MPa

(4) 上弦阳头焊缝计算

共四条焊缝,采用开坡口焊接,坡口采用20×45°

每条焊缝受力N=2490/4=622.5KN

N622.510

3

l

w

296mm

0.7

f

h

f

[

]0.7120150

下弦阳头计算略。

3.3.3.5 主横梁整体性能验算:

3.3.3.5.1 主横梁整体截面性能参数:

① 主横梁截面参数:桁宽H=1m,桁高h=2.4m,节间L

j

=1.6m

跨度L=30m

② 主横梁整体截面惯性矩: I =6983912cm

4

③ 主横梁整体截面抗弯模量:W

=

I

6983912

==42925cm

3

y

162.7

W

=

3.3.3.5.2主横梁整体刚度验算:

I

6983912

==56595 cm

3

y

123.4

6030

3

1000

50.6530

4

1000

=+

482.16983912

3842.16983912

LL

=2.301+0.467=2.768cm=<[f ]=

1083700

PL

f=+

48EI

3

5qL

4

384EI

主横梁整体性能参数通过计算

3.3.3.5 .4主横梁联接销轴、阴阳头耳板计算及选取

3.3.3.5.5主横梁联接销轴计算及选取(双销)

N

2.4910

6

拉力F===1.245×10

6

KN

2

2

销轴材质40Cr [τ]=

5400.6

1.333

=235 MPa

上弦销轴直径D

1

2

=

4F

=6748mm

2

235

4F

=3374 mm

2

2

235

11

双销 D=82mm, 取D=100mm

下弦销轴直径D

1

2

=

LDS

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8024三角桁架龙门吊计算书

双销 D=58mm, 取D=80mm

3.3.3.5.6联接耳板厚度计算: 《起重机设计手册》P734

σ=

kF

≤[σ]

2a

F——联接板或耳板所传递的内力;F=N=1.467×10

6

KN。

a——孔两边板的宽度;上弦取244mm,下弦取114mm。

δ——板的厚度;

[σ]——板材料的许用应力;[σ]= σ

S

/1.5=230MPa

式中:K——系数取1.2~14,计算时多取偏大值;

FK

2.4910

6

1.4

上弦单耳厚度:δ≥==62mm 取δ=100mm

244230

a[

]

2.4910

6

1.4

FK

上弦双耳厚度:δ≥==36mm 取δ=50mm

2a[

]

2244230

2.4910

6

1.4

FK

下弦单耳厚度:δ≥==66mm 取δ=100mm

2a[

]

2114230

FK

2.4910

6

1.4

下弦双耳厚度:δ≥==33mm 取δ=40mm

4a[

]

4114230

3.4.1托架载荷分析:见图

1m1m

y

P=23t

R

A

P=23tP=23t

R

B

P=23t

x

2m

3.5m

(一)托架载荷分析图

y

23t

-23t

y

(二)剪力图

x

-11.5tm

(三)弯矩图

12

23t

-23t

x

-11.5tm

LDS

BH

8024三角桁架龙门吊计算书

Q

=120×1.1+8+44=184t

Q=184/4=46t

N =46/2=23t M=PL=23×0.5=11.5tm

试选截面,如右图 材料:Q235B [σ]=170MPa

截面积: S=179.79cm

2

截面惯性距I

a

=35177㎝

4

截面模量:W

=

350

190

35177

=2131㎝

3

16.5

Mmax115000

==53.9MPa<[σ]=170MPa

Wmin2131

3

3

0

1

0

3.4.2 托架截面强度及刚度校核计算:

计算最大应力:σ

max

=

Pm

2

l2310

4

0.5

2

20.5

f(1

)(1)

118

3EI2

32.1103517710

悬臂端刚度:

m

0.0012m

0.0013m

350

托架强度与刚度验算通过

3.4.4 支腿综合性能计算:

3.4.4.1支腿拉压杆强度计算:

3.4.4.2支腿最大载荷分析:

P=1.1Q+G

小车

+q×L/2=151t

P

=

P151

==77.35t

2sin

2sin77.43

(吊梁行车吊梁时移至支腿极限位置时)

3.4.4.3计算支腿所需最小截面积:材料:Q235B [σ]=170MPa

77.3510

4

A≥==5687mm

2

[

]

0.8170

3.4.4.4初选支腿型材:材料Q235B

主支腿:300×300×12.5 A=14026mm

2

附支腿:180×180×8 A=5280mm

2

材料许用应力:[σ]=170Mpa

3.4.4.5支腿截面性能参数计算:

节间有效长度: L

x

=L

y

=

⑴ 计算X向性能参数:

截面惯性矩: I

x

=19082 cm

4

截面抗拉压弯模量:W

x

=

P

9

m=922cm

sin77.43

19082

=1272cm

3

15

I

x

19082

==11.67cm

140.26

A

压杆截面的惯性半径: r

x

=

13

LDS

BH

8024三角桁架龙门吊计算书

压杆的柔度(长细比):λ

x

=

L

x

922

==79

r

x

11.67

压杆的折减系数: φ

x

=0.79

查《机械设计手册》第一卷P1-152表1-1-100

⑵ 计算Y向性能参数:(与X向相同)

3.4.4.6支腿性能校核计算: 材料:Q235B [σ]=170MPa

77.3510

4

⑴强度校核:σ===55Mpa

14026

A

σ<[σ]=170 Mpa 通过验算满足使用要求

⑵刚度校核:λ=

P

L

min

=

922

=79<[λ]=100 通过验算满足使用要求

11.67

77.3510

4

⑶稳定性校核:σ

x

===69MPa

0.7914026

X

A

σ

x

<[σ]=170 Mpa 材质:Q235B通过验算满足使用要求

邯郸市北恒工程机械有限公司技术科

P

14

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File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 662, well_thread_format(array(26))
File: /www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm, Line: 249, well_thread_find_asc(array(20) , 20)
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File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 662, well_thread_format(array(27))
File: /www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm, Line: 249, well_thread_find_asc(array(20) , 20)
File: /www/wwwroot/www.usbmi.com/tmp/route_read.php, Line: 204, include(/www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm)
File: /www/wwwroot/www.usbmi.com/tmp/index.inc.php, Line: 129, include(/www/wwwroot/www.usbmi.com/tmp/route_read.php)
File: /www/wwwroot/www.usbmi.com/index.php, Line: 29, include(/www/wwwroot/www.usbmi.com/tmp/index.inc.php)
Error[2]: Trying to access array offset on value of type int, File: /www/wwwroot/www.usbmi.com/xiunophp/xiunophp.min.php, Line: 54
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 1095, humandate(1729594491)
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 662, well_thread_format(array(26))
File: /www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm, Line: 249, well_thread_find_asc(array(20) , 20)
File: /www/wwwroot/www.usbmi.com/tmp/route_read.php, Line: 204, include(/www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm)
File: /www/wwwroot/www.usbmi.com/tmp/index.inc.php, Line: 129, include(/www/wwwroot/www.usbmi.com/tmp/route_read.php)
File: /www/wwwroot/www.usbmi.com/index.php, Line: 29, include(/www/wwwroot/www.usbmi.com/tmp/index.inc.php)
Error[2]: Trying to access array offset on value of type int, File: /www/wwwroot/www.usbmi.com/xiunophp/xiunophp.min.php, Line: 54
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 1096, humandate(1729594491)
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 662, well_thread_format(array(27))
File: /www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm, Line: 249, well_thread_find_asc(array(20) , 20)
File: /www/wwwroot/www.usbmi.com/tmp/route_read.php, Line: 204, include(/www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm)
File: /www/wwwroot/www.usbmi.com/tmp/index.inc.php, Line: 129, include(/www/wwwroot/www.usbmi.com/tmp/route_read.php)
File: /www/wwwroot/www.usbmi.com/index.php, Line: 29, include(/www/wwwroot/www.usbmi.com/tmp/index.inc.php)
Error[2]: Trying to access array offset on value of type int, File: /www/wwwroot/www.usbmi.com/xiunophp/xiunophp.min.php, Line: 54
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 1095, humandate(1729612542)
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 662, well_thread_format(array(26))
File: /www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm, Line: 249, well_thread_find_asc(array(20) , 20)
File: /www/wwwroot/www.usbmi.com/tmp/route_read.php, Line: 204, include(/www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm)
File: /www/wwwroot/www.usbmi.com/tmp/index.inc.php, Line: 129, include(/www/wwwroot/www.usbmi.com/tmp/route_read.php)
File: /www/wwwroot/www.usbmi.com/index.php, Line: 29, include(/www/wwwroot/www.usbmi.com/tmp/index.inc.php)
Error[2]: Trying to access array offset on value of type int, File: /www/wwwroot/www.usbmi.com/xiunophp/xiunophp.min.php, Line: 54
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 1096, humandate(1729612542)
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 662, well_thread_format(array(27))
File: /www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm, Line: 249, well_thread_find_asc(array(20) , 20)
File: /www/wwwroot/www.usbmi.com/tmp/route_read.php, Line: 204, include(/www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm)
File: /www/wwwroot/www.usbmi.com/tmp/index.inc.php, Line: 129, include(/www/wwwroot/www.usbmi.com/tmp/route_read.php)
File: /www/wwwroot/www.usbmi.com/index.php, Line: 29, include(/www/wwwroot/www.usbmi.com/tmp/index.inc.php)
Error[2]: Trying to access array offset on value of type int, File: /www/wwwroot/www.usbmi.com/xiunophp/xiunophp.min.php, Line: 54
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 1095, humandate(1729858862)
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 662, well_thread_format(array(26))
File: /www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm, Line: 249, well_thread_find_asc(array(20) , 20)
File: /www/wwwroot/www.usbmi.com/tmp/route_read.php, Line: 204, include(/www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm)
File: /www/wwwroot/www.usbmi.com/tmp/index.inc.php, Line: 129, include(/www/wwwroot/www.usbmi.com/tmp/route_read.php)
File: /www/wwwroot/www.usbmi.com/index.php, Line: 29, include(/www/wwwroot/www.usbmi.com/tmp/index.inc.php)
Error[2]: Trying to access array offset on value of type int, File: /www/wwwroot/www.usbmi.com/xiunophp/xiunophp.min.php, Line: 54
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 1096, humandate(1729858862)
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 662, well_thread_format(array(27))
File: /www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm, Line: 249, well_thread_find_asc(array(20) , 20)
File: /www/wwwroot/www.usbmi.com/tmp/route_read.php, Line: 204, include(/www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm)
File: /www/wwwroot/www.usbmi.com/tmp/index.inc.php, Line: 129, include(/www/wwwroot/www.usbmi.com/tmp/route_read.php)
File: /www/wwwroot/www.usbmi.com/index.php, Line: 29, include(/www/wwwroot/www.usbmi.com/tmp/index.inc.php)
Error[2]: Trying to access array offset on value of type int, File: /www/wwwroot/www.usbmi.com/xiunophp/xiunophp.min.php, Line: 54
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 1095, humandate(1730005886)
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 662, well_thread_format(array(26))
File: /www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm, Line: 249, well_thread_find_asc(array(20) , 20)
File: /www/wwwroot/www.usbmi.com/tmp/route_read.php, Line: 204, include(/www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm)
File: /www/wwwroot/www.usbmi.com/tmp/index.inc.php, Line: 129, include(/www/wwwroot/www.usbmi.com/tmp/route_read.php)
File: /www/wwwroot/www.usbmi.com/index.php, Line: 29, include(/www/wwwroot/www.usbmi.com/tmp/index.inc.php)
Error[2]: Trying to access array offset on value of type int, File: /www/wwwroot/www.usbmi.com/xiunophp/xiunophp.min.php, Line: 54
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 1096, humandate(1730005886)
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 662, well_thread_format(array(27))
File: /www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm, Line: 249, well_thread_find_asc(array(20) , 20)
File: /www/wwwroot/www.usbmi.com/tmp/route_read.php, Line: 204, include(/www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm)
File: /www/wwwroot/www.usbmi.com/tmp/index.inc.php, Line: 129, include(/www/wwwroot/www.usbmi.com/tmp/route_read.php)
File: /www/wwwroot/www.usbmi.com/index.php, Line: 29, include(/www/wwwroot/www.usbmi.com/tmp/index.inc.php)
Error[2]: Trying to access array offset on value of type int, File: /www/wwwroot/www.usbmi.com/xiunophp/xiunophp.min.php, Line: 54
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 1095, humandate(1730403031)
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 662, well_thread_format(array(26))
File: /www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm, Line: 249, well_thread_find_asc(array(20) , 20)
File: /www/wwwroot/www.usbmi.com/tmp/route_read.php, Line: 204, include(/www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm)
File: /www/wwwroot/www.usbmi.com/tmp/index.inc.php, Line: 129, include(/www/wwwroot/www.usbmi.com/tmp/route_read.php)
File: /www/wwwroot/www.usbmi.com/index.php, Line: 29, include(/www/wwwroot/www.usbmi.com/tmp/index.inc.php)
Error[2]: Trying to access array offset on value of type int, File: /www/wwwroot/www.usbmi.com/xiunophp/xiunophp.min.php, Line: 54
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 1096, humandate(1730403031)
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 662, well_thread_format(array(27))
File: /www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm, Line: 249, well_thread_find_asc(array(20) , 20)
File: /www/wwwroot/www.usbmi.com/tmp/route_read.php, Line: 204, include(/www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm)
File: /www/wwwroot/www.usbmi.com/tmp/index.inc.php, Line: 129, include(/www/wwwroot/www.usbmi.com/tmp/route_read.php)
File: /www/wwwroot/www.usbmi.com/index.php, Line: 29, include(/www/wwwroot/www.usbmi.com/tmp/index.inc.php)
Error[2]: Trying to access array offset on value of type int, File: /www/wwwroot/www.usbmi.com/xiunophp/xiunophp.min.php, Line: 54
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 1095, humandate(1730412663)
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 662, well_thread_format(array(26))
File: /www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm, Line: 249, well_thread_find_asc(array(20) , 20)
File: /www/wwwroot/www.usbmi.com/tmp/route_read.php, Line: 204, include(/www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm)
File: /www/wwwroot/www.usbmi.com/tmp/index.inc.php, Line: 129, include(/www/wwwroot/www.usbmi.com/tmp/route_read.php)
File: /www/wwwroot/www.usbmi.com/index.php, Line: 29, include(/www/wwwroot/www.usbmi.com/tmp/index.inc.php)
Error[2]: Trying to access array offset on value of type int, File: /www/wwwroot/www.usbmi.com/xiunophp/xiunophp.min.php, Line: 54
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 1096, humandate(1730412663)
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 662, well_thread_format(array(27))
File: /www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm, Line: 249, well_thread_find_asc(array(20) , 20)
File: /www/wwwroot/www.usbmi.com/tmp/route_read.php, Line: 204, include(/www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm)
File: /www/wwwroot/www.usbmi.com/tmp/index.inc.php, Line: 129, include(/www/wwwroot/www.usbmi.com/tmp/route_read.php)
File: /www/wwwroot/www.usbmi.com/index.php, Line: 29, include(/www/wwwroot/www.usbmi.com/tmp/index.inc.php)
Error[2]: Trying to access array offset on value of type int, File: /www/wwwroot/www.usbmi.com/xiunophp/xiunophp.min.php, Line: 54
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 1095, humandate(1730556387)
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 662, well_thread_format(array(26))
File: /www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm, Line: 249, well_thread_find_asc(array(20) , 20)
File: /www/wwwroot/www.usbmi.com/tmp/route_read.php, Line: 204, include(/www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm)
File: /www/wwwroot/www.usbmi.com/tmp/index.inc.php, Line: 129, include(/www/wwwroot/www.usbmi.com/tmp/route_read.php)
File: /www/wwwroot/www.usbmi.com/index.php, Line: 29, include(/www/wwwroot/www.usbmi.com/tmp/index.inc.php)
Error[2]: Trying to access array offset on value of type int, File: /www/wwwroot/www.usbmi.com/xiunophp/xiunophp.min.php, Line: 54
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 1096, humandate(1730556387)
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 662, well_thread_format(array(27))
File: /www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm, Line: 249, well_thread_find_asc(array(20) , 20)
File: /www/wwwroot/www.usbmi.com/tmp/route_read.php, Line: 204, include(/www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm)
File: /www/wwwroot/www.usbmi.com/tmp/index.inc.php, Line: 129, include(/www/wwwroot/www.usbmi.com/tmp/route_read.php)
File: /www/wwwroot/www.usbmi.com/index.php, Line: 29, include(/www/wwwroot/www.usbmi.com/tmp/index.inc.php)
Error[2]: Trying to access array offset on value of type int, File: /www/wwwroot/www.usbmi.com/xiunophp/xiunophp.min.php, Line: 54
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 1095, humandate(1730756129)
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 662, well_thread_format(array(26))
File: /www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm, Line: 249, well_thread_find_asc(array(20) , 20)
File: /www/wwwroot/www.usbmi.com/tmp/route_read.php, Line: 204, include(/www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm)
File: /www/wwwroot/www.usbmi.com/tmp/index.inc.php, Line: 129, include(/www/wwwroot/www.usbmi.com/tmp/route_read.php)
File: /www/wwwroot/www.usbmi.com/index.php, Line: 29, include(/www/wwwroot/www.usbmi.com/tmp/index.inc.php)
Error[2]: Trying to access array offset on value of type int, File: /www/wwwroot/www.usbmi.com/xiunophp/xiunophp.min.php, Line: 54
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 1096, humandate(1730756129)
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 662, well_thread_format(array(27))
File: /www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm, Line: 249, well_thread_find_asc(array(20) , 20)
File: /www/wwwroot/www.usbmi.com/tmp/route_read.php, Line: 204, include(/www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm)
File: /www/wwwroot/www.usbmi.com/tmp/index.inc.php, Line: 129, include(/www/wwwroot/www.usbmi.com/tmp/route_read.php)
File: /www/wwwroot/www.usbmi.com/index.php, Line: 29, include(/www/wwwroot/www.usbmi.com/tmp/index.inc.php)
Error[2]: Trying to access array offset on value of type int, File: /www/wwwroot/www.usbmi.com/xiunophp/xiunophp.min.php, Line: 54
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 1095, humandate(1737992382)
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 662, well_thread_format(array(26))
File: /www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm, Line: 249, well_thread_find_asc(array(20) , 20)
File: /www/wwwroot/www.usbmi.com/tmp/route_read.php, Line: 204, include(/www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm)
File: /www/wwwroot/www.usbmi.com/tmp/index.inc.php, Line: 129, include(/www/wwwroot/www.usbmi.com/tmp/route_read.php)
File: /www/wwwroot/www.usbmi.com/index.php, Line: 29, include(/www/wwwroot/www.usbmi.com/tmp/index.inc.php)
Error[2]: Trying to access array offset on value of type int, File: /www/wwwroot/www.usbmi.com/xiunophp/xiunophp.min.php, Line: 54
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 1096, humandate(1737992382)
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 662, well_thread_format(array(27))
File: /www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm, Line: 249, well_thread_find_asc(array(20) , 20)
File: /www/wwwroot/www.usbmi.com/tmp/route_read.php, Line: 204, include(/www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm)
File: /www/wwwroot/www.usbmi.com/tmp/index.inc.php, Line: 129, include(/www/wwwroot/www.usbmi.com/tmp/route_read.php)
File: /www/wwwroot/www.usbmi.com/index.php, Line: 29, include(/www/wwwroot/www.usbmi.com/tmp/index.inc.php)
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