双平臂落地抱杆塔顶结构有限元分析Finite Element Analysis of Tower Top Structure with Double Flat Arms

DOI: 10.12677/APP.2021.111005, PDF, HTML, XML, 下载: 100  浏览: 131

Abstract: Double flat arm ground holding pole is a common construction equipment for large-scale tower assembly in transmission line engineering. The equipment improves the working efficiency by lifting heavy objects symmetrically on both sides. According to the actual working conditions, this paper establishes the finite element structural calculation model of double flat arm ground holding tower top under different working amplitude, different lifting load and different eccentric load conditions, analyzes the maximum stress and structural stability coefficient of tower head, lifting arm, pull rod, rotary tower body and other parts, obtains the safety check results of all parts of tower top, and puts forward the connection method of all parts of double flat arm ground holding tower top design scheme of pin shaft.

1. 引言

1) 结构型式

2) 吊臂型式

3) 顶升方式

4) 附着方式

5) 基础型式

6) 机构设置

2. 双平臂落地抱杆SP80结构特点

Table 1. Main dimensions of the original model and the optimized model

3. 双平臂落地抱杆塔顶工况设计

4. 双平臂落地抱杆有限元分析

Figure 1. Tower top boom deformation (condition 1)

Figure 2. Tower head deformation (condition 1)

Figure 3. Deformation of rotary tower body (condition 1)

Figure 4. Tower top boom deformation (condition 1)

Figure 5. Tower head deformation (condition 2)

Figure 6. Deformation of rotary tower body (condition 2)

Figure 7. Tower top boom deformation (condition 3)

Figure 8. Tower head deformation (condition 3)

Figure 9. Deformation of rotary tower body (condition 3)

Figure 10. Tower top boom deformation (condition 4)

Figure 11. Tower head deformation (condition 4)

Figure 12. Deformation of rotary tower body (condition 4)

5. 结论

 [1] 朱小龙, 于兰峰, 等. 基于ANSYS和Isight的桥式起重机主梁结构轻量化设计[J]. 矿山机械, 2012, 40(7): 52-55. [2] Lmam, M.H. and Al-Shihri, M. (1996) Optimum Topology of Structural Supports. Computers, 61, 147-154. [3] 王金诺, 于兰峰. 起重机运输机械金属结构[M]. 北京: 中国铁道出版社, 2002: 4-47. [4] 王栋. 结构优化设计:探索与进展[M]. 北京: 国防工业出版社, 2013. [5] 徐江平, 于兰峰, 肖泽平, 等. 移车台结构系统分析及轻量化设计[J]. 现代制造工程, 2018, 458(11): 91-95. [6] 徐新辉. 基于ANSYS分析的龙门起重机箱型主梁优化设计[D]: [硕士学位论文]. 武汉: 武汉理工大学, 2005. [7] 梁晓波, 程文明, 等. 煤矿装卸用起重机有限元分析及优化设计[J]. 煤矿机械, 2013, 34(11): 104-106. [8] 赵兴华, 姜琦, 等. 卸船起升卷筒支座优化设计[J]. 起重运输机械, 2019(4): 71-73.