液压支架单向阀卸荷冲击压力测试方法研究  

Research on Test Method of Unloading Impact Pressure of Hydraulic Support Check Valve

作　　者：杨建新 YANG Jianxin(Coal Science and Technology Research Institute Co., Ltd., Beijing 100013, China;State Coal Mine Support Equipment Quality Supervision and Inspection Center, Beijing 100013, China;State Key Laboratory of Coal Resource Exploitation and Environmental Protection, Beijing 100013, China)

机构地区：[1]煤炭科学技术研究院有限公司,北京100013 [2]国家煤矿支护设备质量监督检验中心,北京100013 [3]煤炭资源开采与环境保护国家重点实验室,北京100013

出　　处：《煤矿机电》2021年第5期37-40,共4页Colliery Mechanical & Electrical Technology

基　　金：国家级安全生产监管监察技术支撑能力建设项目(发改委投资[2018]1371);煤科院技术创新基金Ⅱ类(2018JC02)。

摘　　要：针对单向阀卸荷冲击压力试验环境蓄存能量不足的技术难题,测试结果无法准确反映出产品的动态特性,在实验室内的液压支架偏载工况、标准测试工况、外加蓄能释放工况下进行大量液控单向阀冲击压力测试,研究其变化规律。依据标准GB 25974.3—2010要求,创新性地提出一种基于碟簧蓄能装置的冲击压力测试方法,使得标准测试工况测试曲线接近支架偏载工况下的测试曲线,测试数据更加真实,有效地反映单向阀动态特性,对提高产品质量有较好的指导意义。Aiming at the technical problem of insufficient energy storage in the unloading impact pressure test environment of check valve,the test results can not accurately reflect the dynamic characteristics of the product.A large number of hydraulic control check valve were carried out under the eccentric load condition,standard test condition and external energy storage release condition in the laboratory to study its change law.According to the requirements of GB 25974.3—2010,an innovative impact pressure test method based on disc spring energy storage device was proposed,which made the test curve under the standard test conditions close to the test curve under the support eccentric load conditions,and the test data reflected the dynamic characteristics of check valve more truly and effectively,which had better guiding significance for improving product quality.

关 键 词：液控单向阀 卸荷冲击压力 碟簧蓄能 

分 类 号：TD355.4[矿业工程—矿井建设]