分析了采煤机截割部存在的问题，提出改进建议。
This paper analyses the existing problem of coal winning machine cutting part, puts forward improving propose.
采煤机是一个复杂的机械系统，其主要包括行走部、截割部、及其附属设备。
The shearer is a complex mechanical system, It consist of haulage unit, cutting unit and related appendage.
同时进行了动力学谐响应分析，从频率响应的角度分析了截割部的振动响应特征。
Meanwhile, dynamic harmonic response has been made, the vibration response characteristics of cutting part are analyzed from the perspective of frequency response.
本文介绍了一种截割部水力测功试验加载系统，分析了系统主参数确定的依据。设计得到实用验证。
The paper introduces a test loading system with hydraulic dynamometer for cutting gearhead, analyzes the basis for determining main parameters of system. The design has been verified by practice.
介绍了BP网络的原理、算法，并用BP网络对采煤机截割部机械传动系统的故障进行了趋势预测。
The paper introduced the theory and algorithm of BP neural network, and it has been used in the fault trend prediction for cutting part transmission system of mining machine.
介绍了BP网络的原理、算法，并用BP网络对采煤机截割部齿轮箱机械传动系统的故障进行了趋势预测。
The theory and algorithm of BP neural network were introduced, and it was used in the fault trend prediction for cutting part transmission system of mining machine.
利用ANSYS有限元软件对采煤机截割部进行了瞬态动力学分析，从时间响应的角度研究振动位移规律。
Transient dynamic analysis for the cutting part of shearer by finite element software ANSYS has been made, the law of vibration displacement is studied from the perspective of time response.
采煤机截割部是一个复杂的多体系统，其负载特性非常复杂，采用传统的计算方法研究其动态特性非常困难。
The shearer's ranging arm is a multi-body system and the load characteristic is very complicated, so it brings many difficulties to research dynamic property with traditional computational method.
介绍了采煤机大功率截割部加载试验的一种新的实现方法，同时阐述了加载试验的工作原理、主要组成部分和主要技术特点。
Introduced a new implementing method for loading cutting part with high power of shearer, and expound working theory of loading test, main components and main technical feature.
针对矿修车间的采煤机截割部的加载问题，研制开发面向维修的采煤机截割部加载试验台，对维修后的采煤机截割部进行加载试验。
Aim to the problem of cutting part with shearer at the mechanical repair workshop, the loading test bed for shearer cutting part undergoing maintenance is manufactured.
针对矿修车间的采煤机截割部的加载问题，研制开发面向维修的采煤机截割部加载试验台，对维修后的采煤机截割部进行加载试验。
Aim to the problem of cutting part with shearer at the mechanical repair workshop, the loading test bed for shearer cutting part undergoing maintenance is manufactured.
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