具有辅助保护的煤矿提升绞车液压保险制动装置制造方法及图纸

一种具有辅助保护的煤矿提升绞车液压保险制动装置，有液压站，液压站有与油箱相连的左、右两个液压换向阀组，左、右两个液压换向阀组分别连有出回油管，左、右出回油管与液压站的油箱之间分别连有支回油管，支回油管上有电磁阀，左、右电磁阀中有一个电磁阀连有延时调节器。煤矿提升绞车在运行中出现意外情况触发安全继电器后，如左、右液压换向阀组因故障不动作，左、右支回油管上的电磁阀能参与绞车紧急制动，实现煤矿提升绞车一级制动和二级制动。本实用新型专利技术只需在左、右出回油管与液压站的油箱之间分别连有支回油管，在支回油管上安装电磁阀。使用时，只让左、右电磁阀中有一个电磁阀连有延时调节器。结构简单、制作费用较低。

Hydraulic safety brake device of mine hoist with auxiliary protection

The utility model relates to a hydraulic safety brake device of a coal mine hoisting winch with auxiliary protection, which is provided with a hydraulic station. The hydraulic station is provided with two left and right hydraulic reversing valve groups which are connected with the oil tank, two left and right hydraulic reversing valve groups which are respectively connected with an outlet and return pipe, and between the left and right outlet and return pipes and the oil tank of the hydraulic station are respectively connected with a return pipe, which is provided with a solenoid valve, and one of the left and right solenoid valves The solenoid valve is connected with a time delay regulator. When the safety relay is triggered due to an unexpected situation during the operation of the coal mine hoisting winch, for example, the left and right hydraulic reversing valve groups do not act due to failure, and the solenoid valves on the left and right branch oil return pipes can participate in the emergency braking of the winch, so as to realize the primary braking and secondary braking of the coal mine hoisting winch. The utility model only needs to connect a branch oil return pipe between the left and right oil return pipes and the oil tank of the hydraulic station, and install a solenoid valve on the branch oil return pipe. When in use, only one of the left and right solenoid valves is connected with a time delay regulator. The structure is simple and the production cost is low.

【技术实现步骤摘要】
具有辅助保护的煤矿提升绞车液压保险制动装置
本技术涉及一种煤矿提升绞车液压制动装置，特别是一种煤矿提升绞车液压制动保护装置的回油油路。
技术介绍
煤矿提升绞车是煤矿的地面与井下之间人和物的运输机械。煤矿提升绞车有液压制动装置，用于煤矿提升绞车运行中，在需要时对绞车的制动。绞车滚筒的左、右两端分别有闸盘和与闸盘相配合的闸瓦，闸瓦连有能受到贴紧闸盘力的弹簧，闸瓦连有液压缸，液压缸有进出油口。用液压站输出液压制动力矩，可实现闸盘和闸瓦的分离和贴紧。向液压缸充油加压，让闸盘和闸瓦分离，解除对绞车的制动；液压缸回油减压，可使闸盘和闸瓦因弹力而贴紧，实现对绞车实施制动。煤矿提升绞车液压制动装置有液压站，液压站有与油箱相连的左、右两个液压换向阀组组，左、右两个液压换向阀组分别连有出回油管。安装时，左出回油管与绞车滚筒的左端闸瓦液压缸的进出油口相连，右出回油管与绞车滚筒的右端闸瓦液压缸的进出油口相连。液压站内油箱中的油可经液压换向阀组和出回油管压出到液压缸并保持压力，液压缸的油可经出回油管和液压换向阀组回流到油箱。当油箱中的油从本文档来自技高网...

【技术保护点】
1.一种具有辅助保护的煤矿提升绞车液压保险制动装置，有液压站，液压站有与油箱相连的左、右两个液压换向阀组，左、右两个液压换向阀组分别连有出回油管，其特征在于：左、右出回油管与液压站的油箱之间分别连有支回油管，支回油管上有电磁阀，左、右电磁阀中有一个电磁阀连有延时调节器。/n

【技术特征摘要】
1.一种具有辅助保护的煤矿提升绞车液压保险制动装置，有液压站，液压站有与油箱相连的左、右两个液压换向阀组，左、右两个液压换向阀组分别连...

【专利技术属性】
技术研发人员：李皓，张营，郎云山，范庆玺，万鑫，崔志强，
申请(专利权)人：铁法煤业集团有限责任公司晓明矿，
类型：新型
国别省市：辽宁;21