结果表明，表面截割对浮区内的热毛细对流有很好的抑制作用，适当增加截割次数，可使热毛细对流削弱70 %以上。
The results show that the effective reduction can be achieved and the flow will be weaked by 70% by proper increase of the surface-cut time.
分析横轴式截割头摆动截割时截齿的运动轨迹，建立了其几何模型和运动方程。
By analyzing motion orbits of picks when a horizontal cutting head cuts, geometry models and motion equations are set up in the paper.
在截割电机空心轴内使用弹性扭矩轴是设置传动系统弹性缓冲的好办法。
Using elastic wrench moment axle in the hollow axle of motor is a good way of setting elastic buffer device of transmission system.
掘进机的截齿与截割头的连接采用焊接形式，焊接工艺比较复杂。
The connect form of cutting tooth and cutting header is welding, welding technics is complex.
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.
为截割头的结构设计和参数优化提供了理论依据。
It provides the theoretical basis for structural design and parameter optimization of cutting head.
对截齿截割煤体变形破坏过程的红外热像进行测量和研究，从而分析研究截齿截割作用下煤体变形破坏规律。
To make measure and research on the infrared hot image in the deformation and destruction course under the function of pick cutting in order to analyze the deformation and destruction law.
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.
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.
截深与截割力、比能耗的关系等，对截齿的几何参数及工作参数进行了较为有效的分析和研究，对于采煤机截齿的实际应用具有指导意义。
The geometrical parameter and the operation parameter of pick were analyzed and researched efficiently , which has guide sense to actual applying of the pick of shearer.
在此基础上，确立了截割头的载荷模型及其模拟方法，并利用编制的计算机程序对截割头的随机载荷以及瞬时截割功率进行了模拟和分析。
On the basis of them , load models and simulation program of the cutting head are given , and the random loads and instantaneous cutting power are simulated and analysed.
截割比能耗是衡量采煤机滚筒设计优劣的重要指标之一。
Specific energy consumption is one of the important indexes of measuring continuous miner cutting drum design.
所得结论对于改进刀形截齿的设计，进一步提高其截割性能和截割效率有一定的指导作用。
The obtained got conclusions may be used to improve the design of the pick, enhance further the cutting performance and benefit the pick.
介绍顶管掘进机截割传动装置所采用的行星齿轮减速器，论述行星齿轮减速器的结构特点。
This paper introduces the epicyclic reduction arrangement applied in cutting drive mechanism in pipe jacking, analyses the construction and characteristics of epicyclic reduction arrangement.
目的探求粗玻管的截割方法和破底大(中)试管在中学化学实验和大学基础化学实验中的利用。
Aim to find ways of cutting big glass tubes and new USES of big bottom-broken test tubes in high school chemical experiment and college basic chemical experiment.
使自切，自割，自截。
采煤机截齿截割煤体时，截齿承受随时间而变化的动载荷。
The cutter of the coal mining machine bears dynamic load varying with time during excavating coal.
介绍一种截割头的设计方法，它能够准确、有效地实现截齿及齿座安装定位设计。
The paper introduces a design method of cutting-head, which can exactly, effectively carry out the attaching design of bits and bit-holders.
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.
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.
本论文的论题选自国家自然科学基金项目“采掘机械截割粉尘的成因及控制方法的研究”。
The proposition of the paper comes from a NSFC project - "Contributing Factorof Cutting Dust and Its Control Strategies".
基于单个截齿的受力模型，对掘进机截割头钻进工况载荷进行了计算机模拟，为截割头的结构设计和参数优化提供了理论依据。
Based on the mechanical model of single bit, drilling loads on the cutting head of tunneling machine are simulated by means of computer in this paper.
本文利用人造模拟截割材料，在液压刨床和专用截割实验台上完成了单齿和滚筒截割系统的模化实验。
The paper presents the model experiments of one-pick and drum cutting systems on a hydraulic planner and a special cutting test rig with the artificial analogous cutting materials.
优化设计实例表明，截割头的负载转矩变差系数减小了13。
The optimum design example shows that the variation coefficient of load torque acting on cutting head is decreased 13.
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.
阐述一种大型采掘机械模拟截割试验载荷的性质、测试数据处理的理论、步骤和结果。 介绍了动态测试的方法和所用的仪器。
The load properties and the principle, procedure and results of data processing for cutting simulation of large excavating machines is described.
弹性扭矩轴是截割传动系统的弹性缓冲装置，安装在截割电机空心轴内两端。
Elastic wrench moment axle is an elastic buffer device of cutting transmission system installed on the both ends in the hollow axle of electrical_machinery.
论述MG250/591-WD电牵引采煤机截割电机恒功率控制系统，确保截割电机始终工作在额定功率附近。
The exposition about MG250/591-WD electric haulage shearer cutting motor constant-power control system guarantees the cutting motor to operate throughout nearby the rated power.
论述MG250/591-WD电牵引采煤机截割电机恒功率控制系统，确保截割电机始终工作在额定功率附近。
The exposition about MG250/591-WD electric haulage shearer cutting motor constant-power control system guarantees the cutting motor to operate throughout nearby the rated power.
应用推荐