刮板输送机减速器试验台WDP加载装置研究

发布时间：2018-06-08 01:44

本文选题：减速器试验台 + WDP加载装置　；参考：《西安科技大学》2015年硕士论文

【摘要】：减速器是综采工作面刮板输送机重要的传动部件之一。煤矿井下工况环境复杂,要求减速器具有可靠的使用性能。因此,需要运用试验台对其进行加载试验,模拟实际使用情况,以确定各项性能是否达到标准。本文设计的“蜗轮控制双行星传动”(简称WDP)机械加载装置,适合于一般煤矿机械制造企业,对重型刮板输送机减速器进行出厂前的性能测试。完成的主要工作如下:在比较分析目前国内外各类减速器试验台结构及原理的基础上,设计了适用于大功率减速器的机械封闭式、背对背对拖试验台总体方案。分析了试验台工作原理,对被试减速器、拖动装置、转速转矩传感器进行了选型;根据试验台和被试减速器的参数,设计了WDP加载装置。分析了加载装置工作原理并建立了三维模型;运用输入输出原理和理论力学对试验台进行了功率流分析,验证了封闭功率原理的正确性。建立该装置平移—扭转数学模型,给出的各零件运动微分方程为WDP动态特性分析奠定了基础;将行星架进行柔性化处理,建立加载装置刚柔耦合虚拟样机,并进行了运动仿真。确定了差动角与加载扭矩的对应关系。在相同差动角条件下进行了两种加载转速时的仿真试验。通过仿真试验验证了WDP加载试验台封闭功率流原理。分析了接触力与加载扭矩的关系。通过设置不同的差动角进行多次仿真分析,进一步确定了差动角与加载扭矩之间定量的映射关系。通过仿真分析,WDP加载装置可有效避免传统加载方式对电网的冲击,实现了节能。可应用在一般煤矿机械制造企业的生产现场。
[Abstract]:Reducer is one of the important transmission parts of scraper conveyor in fully mechanized mining face. The working environment of underground coal mine is complex and the reducer is required to have reliable performance. Therefore, it is necessary to use the test bench to carry out the loading test and simulate the actual use to determine whether the performance meets the standard or not. The "worm wheel controlled double planet drive" (WDP) mechanical loading device designed in this paper is suitable for testing the performance of the reducer of heavy scraper conveyor before it leaves the factory in general coal mine machinery manufacturing enterprises. The main work is as follows: on the basis of comparing and analyzing the structure and principle of various kinds of reducer test-bed at home and abroad, the general scheme of mechanical closed and back-to-back towing test bench suitable for high power reducer is designed. The working principle of the test bench is analyzed, and the type selection of the reducer, the drive device, the speed and torque sensor is selected, and the WDP loading device is designed according to the parameters of the test bench and the test reducer. The working principle of the loading device is analyzed and the three-dimensional model is established, and the power flow analysis of the test-bed is carried out by using the input and output principle and the theoretical mechanics, which verifies the correctness of the closed power principle. The mathematical model of translation and torsion of the device is established, and the kinematic differential equation of each part is established for the dynamic characteristic analysis of WDP. The flexible processing of the planetary frame is carried out, and the rigid-flexible coupling virtual prototype of the loading device is established, and the motion simulation is carried out. The relationship between the differential angle and the loading torque is determined. At the same differential angle, the simulation experiments were carried out under two different loading speeds. The principle of closed power flow on WDP loading test rig is verified by simulation test. The relationship between contact force and loading torque is analyzed. The quantitative mapping relationship between the differential angle and the loading torque is further determined by setting different differential angles for many times. Through simulation and analysis, WDP loading device can effectively avoid the impact of traditional loading mode on the power grid and achieve energy saving. It can be used in the production site of general coal mine machinery manufacturing enterprises.
【学位授予单位】：西安科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TD528.3

【相似文献】