Fault analysis and maintenance of the hydraulic system of coal mining machinery

Abstract

Abstract. With the continuous development of science and technology, mechanical work in the coal, the coal mining machinery hydraulic system has been more common, only the construction of a systematic dimension and control hierarchy management, in order to ensure the inspection results accord with the actual requirements of management. Technical staff in the establishment of fault analysis and control measures at the same time, it is necessary to conduct in-depth study and a comprehensive analysis of the corresponding research structure. In this paper, the coal mining machinery hydraulic system structure is briefly analyzed, and discussed the system fault and maintenance mechanism, in order to provide valuable references for related equipment maintenance and management personnel.In recent years, the continued implementation of China's coal mining project development process, the use ratio of hydraulic equipment and the frequency of use is also increasing, how to construct the system of management mechanism and management dimension, the relevant departments need to systematically deal with the actual demand, and the hydraulic equipment maintenance intensive, so as to establish prevention and maintenance measures to ensure the production operation and management effect at the same time, further improve the overall effectiveness of the work. Hydraulic system of coal mining machineryThe coal mining machinery hydraulic system is mainly composed of brake, clutch and gear shifting device, convert fluid pressure into mechanical energy, which is environmentally friendly and effective use value, and can use the actuator directly to the pressure into power. Therefore, in the process of carrying out the actual management process, if the hydraulic system failure, will cause the influence of transfer force of the gearbox to shift operation effectively, the effect of the corresponding processing equipment and the actual hydraulic structure will lose its effectiveness.In the hydraulic system of coal mining, the most basic element is the power component, is the motive of the mechanical energy into the main path of liquid pressure pump hydraulic system with power on the construction of a systematic support system, to ensure the power effect in line with the actual needs. Secondly, is the control system of the structure, is mainly a series of hydraulic valve structure, the liquid flow rate and direction parameters such as systematic analysis and pressure adjustment, combined with different control mechanism of the hydraulic system control element stress management. It is worth mentioning that, in the control components, pressure control valves, flow control valves and directional control valve is a very important parameter structure. In addition, the coal mining hydraulic system, the implementation of components also has a very important role to ensure the effectiveness of the load rotation and reciprocating process. And by means of auxiliary components and hydraulic oil, to ensure the normal operation of the whole hydraulic contr...