可移动式液压支架外加载及比压测试技术研究
A movable external loading and specific pressure testing technology for hydraulic support
赵锐 1刘欣科 1杨建新 1唐小龙 1王阳阳1
作者信息
- 1. 煤炭科学技术研究院有限公司 检测分院,北京 100013;煤科(北京)检测技术有限公司,北京 100013;国家煤矿支护设备质量检验检测中心,北京 100013;煤炭资源高效开采与洁净利用国家重点实验室,北京 100013
- 折叠
摘要
为解决液压支架让缩性能、底座比压等测试项目的检测检验以及现有液压支架试验装置无法进行外加载的技术难题,设计了一种可移动式液压支架外加载及比压测试装置.该装置采用12 根气液组合功能加载油缸作为外加载动力源及比压测试数据采集元件,可分别用于外加载和底座比压测试.外加载测试时,利用基于高精度刚性液压同步油缸调整技术的多缸同步加载实现测试装置的外加载功能;比压测试时,根据试验装置承载外载荷时不同区段的"气弹簧"沉降位移及压力数据的相互关系得到比压分布数值.通过在不同的试验台对不同规格液压支架进行让缩性能和比压测试试验,发现外加载测试过程平稳、比压测试数据采集快捷准确.实际测试表明,该装置具备在不同的液压支架试验装置间进行共享使用的功能,可有效解决液压支架外加载及比压测试的技术难题.
Abstract
In order to solve the technical problems of testing items such as hydraulic support yield performance and base specific pressure,as well as the inability of existing hydraulic support testing devices to perform external loading,we designed a movable hydraulic support external loading and specific pressure testing device.The device uses 12 gas-liquid combined functional loading cylinders as external loading power sources and specific pressure testing data acquisition components,which can be used for external loading and base specific pressure testing,respectively.During external loading testing,the multi cylinder synchronous loading based on high-precision rigid hydraulic synchronous cylinder adjustment technology was used to achieve the external loading function of the testing device;during the specific pressure test,the specific pressure distribution value was obtained according to the relationship between the"Gas Spring"settlement displacement and pressure data of different sections when the test device is loaded with external load.By conducting shrinkage performance and specific pressure tests on different specifications of hydraulic supports on different test rigs,it was found that the external loading test process was smooth and the specific pressure test data collection was fast and accurate.The test results show that the device has the function of shared use among different hydraulic support testing devices,which can solve the technical problems of external loading and specific pressure testing of hydraulic supports.
关键词
外加载/比压测试/气液组合功能加载油缸/可移动式/液压支架Key words
external loading/specific pressure test/gas-liquid combination dual-purpose cylinder/movable style/hydraulic supports引用本文复制引用
基金项目
中国煤炭科工集团有限公司面上项目(2021-TD-MS002)
出版年
2024
NETL
NSTL
万方数据