论文部分内容阅读
我公司炼钢分厂的 2 0多台桥式起重机起升机构的限位装置均采用ＬＸ7- 1型旋转式限位开关。这种限位开关只有一个控制回路 (接入起升控制回路 ,控制上升限位 ) ,不能实现下降限位 ,对起升接触头粘死、短路等情况无法起限位作用 ,且其各项技术指标均不符合目前国际电工标准 ,极
My company steel branch of more than 20 Taiwan crane lifting mechanism limit devices are used LX7- 1 type rotary limit switch. This limit switch has only one control loop (access to the lifting control loop, control the rising limit), can not achieve the descent limit, the lifting contact sticky, short circuit and so on can not play the role of limit, and its various Technical indicators are not in line with the current international electrical standards, very