The invention relates to the technical field of priority valves, and discloses a crane pressure transmission automatic control rotation control valve which comprises a main valve body, a through groove is formed in the top end of the interior of the main valve body, and a linkage valve element with the right end extending to the exterior of the main valve body is movably connected into the through groove in a sleeved mode. The right side of the linkage valve element is movably sleeved with a control spring, the linkage valve element is in transmission connection with the right end of the through groove in the main valve body, and a set of communicating pipelines are arranged in the main valve body. According to the crane pressure transmission automatic control rotation control valve, the linkage valve element and a structure on the linkage valve element are arranged, under the action of a communicating pipeline, the control valve element can be stressed in one direction by controlling the flow direction of hydraulic oil in the port P, the situation that the control valve element vibrates in the moving process due to two strands of hydraulic oil in different directions is avoided, and the stability of the control valve element is improved. The control precision of the rotary priority valve is improved, and meanwhile the service life of the rotary priority valve is prolonged.
本发明涉及优先阀技术领域,且公开了一种起重机压力传输自动化控制回转控制阀,包括主阀体,所述主阀体内部的顶端开设有通槽,并在通槽的内部活动套接有右端延伸至主阀体外部的联动阀芯,所述联动阀芯的右侧活动套接有控制弹簧,并使得联动阀芯与主阀体上通槽的右端形成传动连接,且在主阀体的内部设有一组连通管路。该起重机压力传输自动化控制回转控制阀,对于联动阀芯及其上结构的设置,并在连通管路的作用下,可通过控制P口中液压油的流向而使控制阀芯单向受力,不会因两股方向不同的液压油而使其在移动的过程中产生振动,进而对其造成过度磨损的现象,在提高该回转优先阀控制精度的同时,延长了其使用的寿命。
Rotary control valve for automatically controlling pressure transmission of crane
一种起重机压力传输自动化控制回转控制阀
21.03.2023
Patent
Elektronische Ressource
Chinesisch
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