The invention discloses a hydraulic power-assisted brake master cylinder, which relates to the technical field of agricultural mechanical equipment. The hydraulic power-assisted brake master cylindercomprises a brake master cylinder body, a guide sleeve assembly is arranged at one end, close to an oil inlet hole, of the brake master cylinder body, a main piston assembly is arranged in the guide sleeve assembly, and an auxiliary piston assembly is arranged at one end, away from the guide sleeve assembly, of the main piston assembly. A one-way valve assembly is arranged at the end, away from the main piston assembly, of the auxiliary piston assembly, a pressure limiting valve assembly is arranged at the position, between an oil inlet hole and an overflow hole, of the brake master cylinder body, and a residual pressure valve assembly is arranged at the position, corresponding to the oil outlet hole, of the brake master cylinder body. The diameter and stroke of the brake master cylinder body are increased, the displacement is increased, and the brake master cylinder has the advantages of being high in brake sensitivity, light in brake pedal stepping and more stable in brake; and the residual pressure valve assembly enables air in the brake master cylinder and the pipeline to be exhausted more easily, the residual pressure is reserved in a cavity of the brake master cylinder or thebrake calipers after the pedal is reset, and the brake sensitivity is further improved.

    本发明公开了一种液压助力制动总泵,涉及农业机械设备技术领域,包括制动总泵本体,制动总泵本体靠近进油孔的一端设有导向套组件,导向套组件内设有主活塞组件,主活塞组件远离导向套组件的一端设有副活塞组件,副活塞组件远离主活塞组件的一端设有单向阀组件,制动总泵本体上位于进油孔与溢流孔之间位置设有限压阀组件,制动总泵本体上与出油孔相对应位置设有残压阀组件。本发明加大制动总泵本体的直径和行程,增加排量,具有制动灵敏度高,脚踩刹车踏板轻便,刹车更加平稳的优点;且残压阀组件使得制动总泵和管道内的空气更容易排净,让制动总泵或制动卡钳在踏板复位后空腔内留有残余压力,制动灵敏度得到进一步提升。


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    Title :

    Hydraulic power-assisted brake master cylinder


    Additional title:

    一种液压助力制动总泵


    Contributors:
    YAO JIACHENG (author) / LI AOQI (author)

    Publication date :

    2021-01-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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