The invention discloses a dual-power crane engine operation safety protection device. The safety protection device comprises a first oil conveying pipe, a three-way electromagnetic valve, a second oilconveying pipe and a third oil conveying pipe, one end of the first oil conveying pipe is connected to and communicates with the outlet end of an oil way control device, the other end of the first oil conveying pipe is connected to and communicates with the inlet end of the three-way electromagnetic valve, one end of the second oil conveying pipe is connected to and communicates with a first outlet end of the three-way electromagnetic valve, the other end of the second oil conveying pipe is connected to and communicates with an interface end additionally arranged on an oil tank, one end of the third oil conveying pipe is connected to and communicates with a second outlet end of the three-way electromagnetic valve, the other end of the third oil conveying pipe is connected to and communicates with an oil way interface end of an operating rod in a cab, the three-way electromagnetic valve is connected to a vehicle power supply or an external power supply through a power line, and a control switch is arranged on the power line. The safety protection device has the advantages that the structural design is reasonable, the operation is easy, the occurrence of dangerous accidents caused by mistakenly touching the operating rod can be effectively avoided by turning off the control switch in the crane running process, and safe operation is guaranteed.
本发明公开了一种双动力吊车发动机作业安全保护装置,包括第一输油管、三通电磁阀、第二输油管和第三输油管;第一输油管的一端与油路控制装置的出口端连接并形成连通、另一端与三通电磁阀的进口端连接并形成连通;第二输油管的一端与三通电磁阀的第一出口端连接并形成连通、另一端与油箱上增设的接口端连接并形成连通;第三输油管的一端与三通电磁阀的第二出口端连接并形成连通、另一端与驾驶室内操作杆的油路接口端连接并形成连通;三通电磁阀通过电源线与车载电源或外接电源连接,且在电源线上设置有控制开关;该装置结构设计合理、操作简单,实现吊车行驶过程中通过关闭控制开关有效避免误碰操作杆导致的危险事故发生,保证安全作业。
Dual-power crane engine operation safety protection device
双动力吊车发动机作业安全保护装置
2021-01-15
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
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