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井下侧卸式矿车门钩的改造与实施

2021-09-01孙菊付栋川李晓霞

科学与生活 2021年9期

孙菊 付栋川 李晓霞

【摘 要】:传统的侧卸式矿车门钩与矿车箱体采用销轴连接,卸矿后通过矿车门钩自重使矿车门钩复位,达到矿车箱体门锁闭的效果。在运矿过程中,存在矿粉粘粘、轴销磨损导致间距增大、矿车门钩无法正常复位等问题,和矿车运行中门钩振动脱开的事故风险。因此,矿车门钩急需改进。本文涉及井下侧卸式矿车门钩自锁装置的改造与实施。

【关键词】:井下矿车 矿车门钩 自锁装置

[Abstract] :The traditional side unloading mine door hook is connected with the harvester box body with pin shaft. After unloading the mine, the mine door hook is reset by the dead weight of the mine door hook, so as to achieve the locking effect of the harvester box door. In the process of ore transportation, there are problems such as stickiness of ore powder, increased distance caused by wear of shaft pins, failure of normal reset of mine door hooks, and accident risks such as the vibration of mine door hooks in the operation of mine cars. Therefore, mine door hooks are in urgent need of improvement. This paper relates to the modification of a self-locking device for mine door hook with downhole side unloading.

[Key words]:Downhole harvesters Mine the door hook Self-locking device

0 前言

三矿区运输工区有轨运输系统承担着井下1050水平和东部贫矿1250水平、1350水平矿石运输任务,采用14t电机车牵引12节“4m³侧卸式矿车”编组拉矿。但列车编组在装/卸矿时存在以下问题: “4m³侧卸式矿车”门钩依靠其自重自由落体式挂上 ,每列矿车卸矿结束后存在未挂到位的情况,需专人检查每节矿车的门钩是否挂好,占用时间及人力;矿车运行中存在门钩振动脱开将矿石撒到巷道中的事故风险。由于“4m³侧卸式矿车”自身的缺陷,严重制约着三矿区有轨的运输效率,而且及大地增加了员工的劳动强度。因此,矿车门钩急需改进。本文涉及井下侧卸式矿车门钩自锁装置的改造与研究。

1、4m³侧卸式矿车改造的内容及解决技术问题的思路

本次改造是在侧卸式矿车后箱体处制作安装连杆自锁门钩,利用机械自锁原理,使连杆自锁门钩实现门钩自动挂紧闭锁,并且使门钩在矿车运行中无法振动脱开,实现连续装矿。

有轨运输系统承担着矿山各水平矿石运输任务,采用14t电机车牵引12节“4m³侧卸式矿车”编组拉矿。……

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