摘要
为实现高预应力锚杆支护系统所要求的高预应力和预应力扩散,自主研发了高张紧力气动联网装置.其主要由主气缸总成、扭丝气缸总成、装钉机构、推丝机构和扭丝机构组成。分析确定了联网U形网钉长度35 mm、送丝推力2 kN、旋转扭矩6 N・m的最优设计参数。试验研究表明:高张紧力气动联网装置可提供0.13 kN左右的张紧力,联网强度比人工联网强度提高了61.5%,可达到整片网强度的91.3%.
In order to achieve the high pre-tensioned stress and pre-tensioned stress diffusion required by the high pre-tensioned stress bolting system, the high tensioning metal mesh pneumatic tying device was independently researched and developed and the device was mainly composed with the main cylinder assembly, the twisted wire cylinder assembly, the staple mechanism, the push wire mechanism and the twisted wire mechanism. The optimal design parameters of the network U-pin length of 35 mm, wire feed thrust of 2 kN and rotation torque of 6 N·m are analyzed and determined. Experimental results show that high tension pneumatic networking device can provide tension force of about 0.13 kN. The strength of the network is 61.5 % higher than that of artificial network, and it can reach 91.3 % of the strength of the entire network.
作者
汪占领
孟宪志
杨志华
WANG Zhanling;MENG Xianzhi;YANG Zhihua(Coal Mining and Designing Department,Tiandi Science and Technology Co.,Ltd.,Beijing 100013,China;Coal Mining and Designing Branch,China Coal Research Institute,Beijing 100013,China;Ningxia Coal Science and Technology Research Institute Co.,Ltd.,Yinchuan 750021,China)
出处
《煤矿安全》
CAS
北大核心
2019年第11期132-135,共4页
Safety in Coal Mines
基金
天地科技股份有限公司科技创新创业资金专项资助项目（2018-TD-ZD007）
中国煤炭科工集团创新创业基金资助项目（2018MS021）
国家重点研发计划资助项目（2017YFC0603006）
关键词
高预应力
气动
联网装置
矿用金属网
人工联网
high pre-tensioned stress
pneumatic
metal mesh tying device
mine-used metal
