The invention discloses a buffering device for controlling the movement speed of an actuator cylinder. The reliability of a locking device mechanism can be improved. The buffering device is achieved through the following technical scheme that an upper locking cavity is communicated with a damping pipe, and an intercepting ring groove is formed in the circumference of a sliding section of the damping pipe; when a piston rod extends downwards, hydraulic oil enters a blind hole cavity of the piston rod along the damping pipe, after the blind hole cavity is filled with the hydraulic oil, the hydraulic oil slowly flows upwards into the upper locking cavity along the intercepting ring groove in the damping pipe, the hydraulic pressure of the upper locking cavity is slowly increased, and the piston rod is pushed to move under the action of the hydraulic pressure; when the piston rod retracts, pressure of the unlocking cavity extrudes the piston rod, the piston rod extrudes the hydraulic oil in the upper locking cavity, the pressure of the upper locking cavity is increased, the hydraulic oil slowly flows into the blind hole cavity of the piston rod from the upper locking cavity along an intercepting annular groove of the damping pipe, the hydraulic oil in the unlocking cavity is reduced, and the piston rod slowly slides along the damping pipe; and liquid flow generates damping force through a gap between the inner wall of a blind hole and the damping pipe, the damping force controls the movement speed of the piston rod, and buffering of the actuator cylinder is achieved.
本发明公开的一种控制作动筒运动速度的缓冲装置,能够提高锁定装置机构的可靠性,本发明通过下述技术方案实现:上锁腔连通阻尼管,阻尼管的滑动段圆周上制有截流环槽;在活塞杆向下伸出时,液压油顺着阻尼管进入活塞杆的盲孔腔,盲孔腔充满液压油后,向上沿着阻尼管上的截流环槽缓慢流入上锁腔,上锁腔液压力缓慢增加,在液压力的作用下,推动活塞杆运动;在活塞杆缩回时,开锁腔压力挤压活塞杆,活塞杆挤压上锁腔的液压油,上锁腔压力增高,液压油从上锁腔沿着阻尼管的截流环槽缓慢流入活塞杆的盲孔腔,开锁腔液压油减少,活塞杆沿着阻尼管缓慢滑动;液体流通过盲孔内壁与阻尼管之间的间隙产生阻尼力,阻尼力控制活塞杆运动速度,实现作动筒缓冲。
Buffering device used for controlling movement speed of actuator cylinder
控制作动筒运动速度的缓冲装置
2021-03-02
Patent
Electronic Resource
Chinese
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