The invention discloses a single-cylinder bolt control valve group, a single-cylinder bolt control system comprising the single-cylinder bolt control valve group, and a crane comprising the single-cylinder bolt control system. The single-cylinder bolt control valve group comprises a shuttle valve, a two-position three-way electromagnetic ball valve, a first one-way valve, a second one-way valve, afirst two-position two-way electromagnetic valve and a second two-position two-way electromagnetic valve, wherein an oil outlet of the shuttle valve is connected with an oil inlet of the two-positionthree-way electromagnetic ball valve; a first working oil port of the two-position three-way electromagnetic ball valve is connected with an oil inlet of the first two-position two-way electromagnetic valve through the first one-way valve; a second working oil port of the two-position three-way electromagnetic ball valve is connected with an oil inlet of the second two-position two-way electromagnetic valve; and an oil outlet of the second two-position two-way electromagnetic valve is connected with the oil inlet of the first two-position two-way electromagnetic valve through the second one-way valve. When a cylinder arm bolt is controlled, an external valve group and an independent oil source are not needed, and meanwhile, a continuous high-pressure state of a core pipe is relieved; andthe single-cylinder bolt control valve group is simple in structure and high in reliability.
本发明公开了一种单缸插销控制阀组,包括所述单缸插销控制阀组的单缸插销控制系统,以及包括所述单缸插销控制系统的起重机。所述单缸插销控制阀组包括梭阀、两位三通电磁球阀、第一单向阀、第二单向阀、第一两位两通电磁阀和第二两位两通电磁阀,梭阀的出油口连接两位三通电磁球阀的进油口,两位三通电磁球阀的第一工作油口还经过第一单向阀连接第一两位两通电磁阀的进油口;所述的两位三通电磁球阀的第二工作油口连接第二两位两通电磁阀的进油口,第二两位两通电磁阀的出油口还经过第二单向阀连接第一两位两通电磁阀的进油口。本发明在对缸臂销控制时无需外部阀组和独立油源,同时解除芯管的持续高压状态,结构简单,可靠性高。
Single-cylinder bolt control valve group, horizontal bar bolt control system and crane
单缸插销控制阀组、单杠插销控制系统及起重机
2020-09-11
Patent
Electronic Resource
Chinese
Single-cylinder bolt control system, cargo boom and crane
European Patent Office | 2024
|Single-cylinder bolt hydraulic control system, telescopic arm and crane
European Patent Office | 2022
|Single-cylinder bolt hydraulic control system, telescopic arm and crane
European Patent Office | 2022
|