DYNAMIC CHARACTERISTICS STUDY ON THE TWO-STAGE SAFETY VALVE USED ON HYDRAULIC SUPPORT UNDER IMPACT LOADING

被引：10

作者：

Zhao, Guochao ^{[1
]}

Wang, Hui ^{[1
]}

Song, Yuning ^{[2
]}

Zhang, Changshuai ^{[2
]}

机构：

[1] Liaoning Tech Univ, Sch Mech Engn, Fuxin, Peoples R China

[2] Yingkou Inst Technol, Dept Mech & Power Engn, Yingkou, Peoples R China

来源：

JOURNAL OF THEORETICAL AND APPLIED MECHANICS | 2020年 / 58卷 / 03期

基金：

中国国家自然科学基金;

关键词：

safety valve; impact loading; hydraulic support; dynamic characteristic; NUMERICAL-SIMULATION; MULTIPLE FACTORS; POWERED SUPPORT; DESIGN; FORCES;

D O I：

10.15632/jtam-pl/116576

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A two-stage linkage safety valve for hydraulic support is presented. Considering the hydraulic support is impacted, dynamic simulation of the column circuit with the two-stage safety valve subject impact loading was carried out, and the dynamic characteristics of the two-stage safety valve with different impact forms were studied. A rapid impact loading test rig was built to test the two-stage safety valve sample under impact loading. Simulation and experimental results indicate that the two-stage safety valve has high sensitivity and good unloading performance, it can realize fast and large flow unloading of the hydraulic support under different impact forms and pressures.

引用

页码：623 / 635

页数：13