Dynamics Analysis and Experimental Research of Self-locking Descending Device of Mining Excavator

Bingbing Dong

doi:10.16578/j.issn.1004.2539.2019.04.023

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Dynamics Analysis and Experimental Research of Self-locking Descending Device of Mining Excavator

Test·Analysis | 更新时间：2022-10-03

- Dynamics Analysis and Experimental Research of Self-locking Descending Device of Mining Excavator
- Journal of Mechanical Transmission Vol. 43, Issue 4, Pages: 125-128(2019)
- 作者机构：
  
  1.广东理工学院工业自动化系，广东肇庆 526114
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2019.04.023
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董兵兵.矿用机械自锁缓降器动力学分析及试验研究[J].机械传动,2019,43(04):125-128.

Dong Bingbing.Dynamics Analysis and Experimental Research of Self-locking Descending Device of Mining Excavator[J].Journal of Mechanical Transmission,2019,43(04):125-128.
董兵兵.矿用机械自锁缓降器动力学分析及试验研究[J].机械传动,2019,43(04):125-128. DOI： 10.16578/j.issn.1004.2539.2019.04.023.

Dong Bingbing.Dynamics Analysis and Experimental Research of Self-locking Descending Device of Mining Excavator[J].Journal of Mechanical Transmission,2019,43(04):125-128. DOI： 10.16578/j.issn.1004.2539.2019.04.023.

摘要

为了提高矿用重型机械的安全性，设计了提升擒纵式自锁缓降器，对缓降器的可靠性和动力学性能进行了理论分析。利用CAD和UG软件设计了缓降器的三维结构，并用Adams软件进行了动力学性能仿真，分别获得了主传动轴的角速度及碰撞接触力，并对擒纵轮进行了应力分析。最后，对试验样机的工作性能进行了测试。研究结果表明，擒纵式缓降器机械结构在下落过程中不会出现打滑现象，强度和动力特性满足使用要求；通过试验，验证了仿真结果的正确性。研究结果对于缓降器的优化设计具有较好的指导作用。

Abstract

The structure and working principle of the escapement type descending device for mining excavators are introduced. The reliability and dynamics performance of the descending device are theoretically analyzed. The three-dimensional structure of the descender is designed by CAD and UG software. The dynamics performance simulation is carried out with Adams software. The angular velocity and collision contact force of the main drive shaft are obtained respectively， and the stress analysis of the escape wheel is carried out. Finally， the performance of the test prototype is tested. The research results show that the mechanical structure of the escapement type descender does not show slipping during the falling process， and the strength and dynamics characteristics meet the requirements of use; the correctness of the simulation results is verified by experiments. The research results have a good guiding effect on the optimal design of the descending device.

关键词

计算机辅助设计自锁缓降器动力学仿真强度校核

Keywords

Computer aided designSelf-locking descending deviceDynamics simulationStrength check

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