Research On Testing System Of Key Components Of Hydraulic Supports

Hydraulic powered support is an vital supporting equipment for integrated mechanized mining face,which provides a safe workspace for fully-mechanized coal winning and operators.The upright column and valve are the important components of the hydraulic powered support which plays a key role in the process of execution and controlling.Their performance has direct influence on the safety and the stability of hydraulic powered support.This paper analyzed and determined the items and parameters of the experiment of the upright column and valve,according to the requirement specified in the national standard documents "Powered support for coal mine-Part 2:Specification for power set legs and rams"(GB25974 2-2010)and "Powered support for coal mine-Part 3:The hydraulic control system and valves(GB25974.3-2010).In addition,this paper designed a hydraulic loading system by applying modular design,with the parameters evaluated and electronics selected.The characteristic curves of upright column and valve were generated under the simulation of AMESim.The results indicate that the hydraulic loading system can fulfill the demand of the upright column and valve’s performance test.In this paper,a detection system was constructed by applying the architecture of a host and slave computer.The data acquisition card whose core is STC15W4K58S4-30 is used as the slave computer and programmed using C language.The slave computer is used for data retrieval,preprocessing,and communication.The host computer is programmed under LabVIEW2015,and transfers message with the slave computer through the serial port.The host computer is used to process,display,store,and search the data,and generate forms.The validation platform was built using the equipment of lab.After analyzing the detection system,the results reflect that it fulfills all the demands,and have preferable performance.