The invention relates to a single-cylinder bolt control system, a cargo boom and a crane, the single-cylinder bolt control system comprises a telescopic oil cylinder, an arm pin oil cylinder, a cylinder pin oil cylinder, a central channel reversing valve and a cylinder and arm pin switching valve, an arm pin central oil channel and a cylinder pin central oil channel are arranged in the telescopic oil cylinder, one end of the arm pin central oil channel is communicated with an oil cavity of the arm pin oil cylinder, and the other end of the cylinder pin central oil channel is communicated with the cylinder pin oil cylinder. One end of the cylinder pin center oil channel is communicated with an oil cavity of the cylinder pin oil cylinder, the other end of the arm pin center oil channel and the other end of the cylinder pin center oil channel are both communicated with the cylinder arm pin switching valve, and the center channel reversing valve is communicated with the cylinder arm pin switching valve and a high-pressure oil way or an oil return way. And the cylinder arm pin switching valve is communicated with the arm pin central oil duct or the cylinder pin central oil duct and the central channel reversing valve. According to the single-cylinder bolt control system, the cargo boom and the crane, the cylinder-arm pin switching valve is connected between the high-pressure oil way and the telescopic oil cylinder, the cylinder-arm pin switching valve can be arranged on the rotary table, and inspection of the cylinder-arm pin switching valve and maintenance of electrical elements on the telescopic oil cylinder are convenient.
一种单缸插销控制系统、起重臂及起重机,该单缸插销控制系统包括伸缩油缸、臂销油缸、缸销油缸、中心通道换向阀和缸臂销切换阀,伸缩油缸内设有臂销中心油道和缸销中心油道,臂销中心油道的一端与臂销油缸的油腔连通,缸销中心油道的一端与缸销油缸的油腔连通,臂销中心油道的另一端和缸销中心油道的另一端均与缸臂销切换阀连通,中心通道换向阀连通缸臂销切换阀与高压油路或回油油路,缸臂销切换阀连通臂销中心油道或缸销中心油道与中心通道换向阀。本发明实施例的单缸插销控制系统、起重臂及起重机中,缸臂销切换阀连接在高压油路和伸缩油缸之间,可将缸臂销切换阀设在转台上,缸臂销切换阀的检查和伸缩油缸上的电气元件维修均较为方便。
Single-cylinder bolt control system, cargo boom and crane
单缸插销控制系统、起重臂及起重机
2024-02-23
Patent
Elektronische Ressource
Chinesisch
IPC: | B66C Krane , CRANES |
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