The crawler-type steering hydraulic valve comprises a valve element, the valve element is slidably connected into a valve body, spring pads are symmetrically connected to one end of the valve element, the spring pads are arranged in a sealing cover through a buffering mechanism, a limiting sleeve is arranged in the sealing cover, and an O-shaped sealing ring is arranged at the joint of the sealing cover and the valve body. One side of the valve element buffering mechanism is connected through a screw, and a first oil return flow channel, a steering oil return flow channel, a second oil return flow channel, a left steering flow channel, an internal oil inlet flow channel, a right steering flow channel and a third oil return flow channel are arranged on the two sides of the valve body respectively from left to right. Therefore, respective actions of the left steering oil cylinder and the right steering oil cylinder are controlled, various steering modes of the crawler-type steering system are achieved, operation and control are simple, and stepless steering can be well achieved.
本发明提供一种履带式转向液压阀及控制系统,包括阀芯,阀芯滑动连接与阀体内部,阀芯一端连接对称设置弹簧垫,弹簧垫通过缓冲机构设于密封罩内,密封罩内设有限位套,密封罩与阀体连接处设有O形密封圈,阀芯缓冲机构一侧通过螺钉连接,在阀体两侧从左向右分别设有第一回油流道、转向回油流道、第二回油流道、左转向流道、内部进油流道、右转向流道、第三回油流道,通过操纵一路液压阀阀芯的的换向行程,进而控制左转向油缸和右转向油缸的各自动作,实现履带式转向系统的多种转向方式,操纵控制简单,可以很好地实现无极转向。
Crawler-type steering hydraulic valve and control system
一种履带式转向液压阀及控制系统
2022-09-13
Patent
Electronic Resource
Chinese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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