矿用本安型行程传感器设计方法  

Design Method of Intrinsically Safe Travel Sensor for Mining

作　　者：刘学 高思伟 付振 李再峰 LIU Xue;GAO Siwei;FU Zhen;LI Zaifeng(Beijing Tianma Intelligent Control Technology Co.,Ltd.,Beijing 100013,China)

机构地区：[1]北京天玛智控科技股份有限公司,北京100013

出　　处：《煤炭技术》2024年第10期238-241,共4页Coal Technology

摘　　要：在综采工作面液压支架电液控制系统中,矿用本安型行程传感器扮演着监控支架推移行程的关键角色。作用是将油缸的机械行程通过液压支架转换成电流信号。向控制设备传递信号,使工人通过对设备的控制,确定液压支架的进度是否达到预定位置。因此,矿用本安型行程传感器是完成液压支架推溜、拉架等功能的保证,也是实现综采工作面自动化、智能化控制的基础装备。磁致伸缩行程传感器测量千斤顶活塞杆的行程值是根据磁致伸缩线的变形位置,利用铁磁材料的特性来实现精确测量的目的。行程测量采用磁致伸缩原理,可适用于存在甲烷气体混合物危险、煤尘爆炸等煤矿井下,具有精度高、非接触等优点。《矿用本安型行程传感器设计》从介绍磁致伸缩原理入手,重点介绍了矿用本安型行程传感器的硬件电路设计、结构设计等内容。In the electrohydraulic control system of hydraulic support in fully mechanized mining face,the intrinsic safety travel sensor plays a key role in monitoring the moving travel of the support.The function is to convert the mechanical stroke of the cylinder into a current signal through the hydraulic support.Transmit signals to the control equipment,so that the worker can determine whether the progress of the hydraulic support has reached the predetermined position through the control of the equipment.Therefore,the essential safety travel sensor is the guarantee to complete the functions of the hydraulic support,such as pushing and pulling,and is also the basic equipment to realize the automatic and intelligent control of the fully mechanized mining face.The magnetostrictive travel sensor measures the travel value of the jack piston rod according to the deformation position of the magnetostrictive line,and uses the characteristics of ferromagnetic materials to achieve the purpose of accurate measurement.The travel measurement adopts the principle of magnetostriction,which can be applied to the underground coal mine with methane gas mixture danger and coal dust explosion,and has the advantages of high precision and non-contact.The Design of Intrinsic Safety Travel Sensor for Mining starts with the introduction of the principle of magnetostriction,and focuses on the hardware circuit design and structure design of intrinsic safety travel sensor for mining.

关 键 词：矿用本安型行程传感器 磁致伸缩 液压支架推移 

分 类 号：TD679[矿业工程—矿山机电] TP212[自动化与计算机技术—检测技术与自动化装置]