关键词:采煤机,摇臂,液压,系统,调高
ABSTRACT
With the rapid development of machanical industry, the research about the shearer is becoming more and more hotter. Shearer is a large compex system which integrated of machinery, electrical and hydraulic. Using the liquid medium as the trabsmission, hydraulic drive mainly used the liquid pressure to trabsfer and control the energy As an important component parts, rocker shearer mainly used to adjust the coal shear height,which played a very important role in the application and therefore.the research about the adjustment system of shearer arm was very meaningful. The principle of hydraulic systems can be used to adjust the height of shearer arm wonderfully toachieve the requirements of the high degree.
The comprehensive mechanization of coal mining is the acceleration coal industrial development of our country , raises labor productivity substantially , realizes the modern a strategic measure of coal industry. Synthesize mechanization not only output big, efficiency has low cost high and can alleviate heavy physical labor and improvement schoolwork environment, is the technology of coal industry develop direction. Hydraulic support is the one of comprehensive most important equipment in the mechanization method of coal mining.
The research of the application of hydraulic system in the arm is in a period of rapid development.Using the characteristics and laws of hydraulic system correctly can achieve shearer arm’s uniform movement and self-locking function. Therefore,this way of the research lied in using the functions of hydraulic system to control shearer rocker properly,which is of great significance.