The invention relates to a rocker arm push rod connected with a brake cable. A piston is arranged in the hydraulic oil cylinder, and the hydraulic oil cylinder comprises an oil outlet hole communicated with the brake lower pump; the rocker arm push rod is connected with the piston, and when the rocker arm push rod is pulled by the brake cable, the piston is pushed to move in the hydraulic oil cylinder, and hydraulic oil in the hydraulic oil cylinder is discharged to the lower pump through the oil outlet hole; the auxiliary oil tank is communicated with the hydraulic oil cylinder through an exchange hole; the auxiliary oil tank comprises a pressure balance hole, the pressure balance hole is used for allowing the auxiliary oil tank to discharge or suck air when the pressure is balanced, and compared with the prior art, the braking force loss caused by the stay wire can be reduced.
本发明涉及一种连接刹车线的摇臂推杆;内部设置活塞的液压油缸,液压油缸包括与刹车下泵连通的出油孔;摇臂推杆连接所述活塞,摇臂推杆被所述刹车线拉动时推动所述活塞在液压油缸内移动,并将液压油缸内的液压油通过出油孔排出到下泵;通过交换孔与所述液压油缸连通的副油箱;所述副油箱包括压力平衡孔,所述压力平衡孔用于在平衡压力时允许副油箱排出或吸入空气,相对现有技术本发明能够减少拉线导致的刹车力损失。
Oil pressure disc brake upper pump system
一种油压碟刹上泵系统
2023-03-14
Patent
Electronic Resource
Chinese
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