我们使用JZ_2T-10/700型凿井抓岩机专用绞车,在井下控制绞车的提升和下降,以实现抓岩。由于井简涌水较多,空气潮湿,致使操作按钮多次进水,引起远控按钮短路,而不能使绞车停车。至今由于类似情况引起的绞车过提或过松,已经造成数次顶盘及松绳压人的恶性事故。为此,对绞车的过卷保护进行改进,经过几个月 We use JZ_2T-10/700 type rock-drilling machine for winch, in the downhole control winch lifting and lowering, in order to achieve grasping rock. As the wells were more gushing water, humid air, causing the operation button repeatedly water, causing the remote control button short circuit, but can not winch parking. As a result of similar conditions caused by the winch too much or too loose, has caused a number of tops and loose rope pressure of human malignant accidents. To this end, the winch over-roll protection to improve, after a few months