薄煤层采煤机齿式离合器操纵机构优化设计  

Optimization design of operating mechanism in the thin-seam-coal mining machine gear clutch

作　　者：杨高平[1] 李学军[1] 伍济钢[1] 

机构地区：[1]湖南科技大学机械设备健康维护湖南省重点实验室,湖南湘潭411201

出　　处：《机械设计》2017年第4期59-64,共6页Journal of Machine Design

基　　金：国家自然科学基金资助项目(51375162)

摘　　要：针对薄煤层采煤机齿式离合器接合时操纵机构末端承受较大冲击力导致接合困难,同时对采煤机的操纵舒适性等产生重要影响等问题,采用动力学仿真和试验测试相结合的方法,基于多连杆力放大原理对齿式离合器操纵机构进行了优化设计。基于ADAMS仿真分析获得了离合器接合时操纵杆承受的冲击力,设计和搭建了离合器接合测试试验平台,在多种工况下测试了离合器接合时操纵杆所需的推力,仿真和测试结果表明操纵杆承受了较大的冲击力。建立了以主、从动齿碰撞时操纵机构力的放大比例最大为目标的优化模型,对操纵机构进行了优化,优化后力的放大比例增加了136%。最后对优化设计后的操纵机构进行了仿真分析,仿真结果表明离合器接合时操纵杆承受的最大冲击力平均减小了56%。The engagement hard caused by the great impact exerted on the operating mechanism was found when the gear clutch of thin-seam-coal mining machine was engaging. The manipulation comfort of the mining machine was bad. The dynamics simulation and experiment test were combined to perform the optimization design of gear clutch based on the principle of multi- link force amplification. The jointing impact force exerted on the joystick was obtained based on the ADAMS simulation. The clutch jointing test experiment platform was designed and established. The jointing thrust of the joystick was test in the various kinds of conditions. The results from the experiments and dynamic simulations indicated that the joystick sustained the large im- pact force. The optimization models of main and slave gear with the target of maximize the enlargement scale of the operating mechanism force during the jointing were established. The operating mechanism was optimized. The enlargement scale of the op- timized operating mechanism force increased by 136%. The simulation analysis of the optimized operating mechanism was per- formed at last. The simulation results indicated that the maximum impact force exerted on the joystick decreased by 56% when the gear clutch is jointing.

关 键 词：薄煤层采煤机 齿式离合器 操纵机构 优化设计 

分 类 号：TH122[机械工程—机械设计及理论]