The invention relates to the technical field of truck gas circuit relay valves, in particular to a double-adjustment adaptive-control variable-pressure force-control trailer relay valve which comprises a main valve body, and an A-column pressure regulating valve and a B-column pressure regulating valve are fixed to the side wall of the main valve body. The invention has the following beneficial effects: by increasing the proportion difference of the main piston, the main vehicle controls the air pressure acting force of the main air pipe to absolutely press the main piston in the later stage, thereby ensuring the braking effect required by heavy load; the arrangement of a second vent hole, a third vent hole and a first valve is enlarged, the arrangement acts on the initial stage of braking, the acting force formed on a second working cavity and the acting force of a main vehicle control main air pipe form balanced confrontation, and the soft performance of unproportional output needed by no-load is guaranteed; the arrangement of the A column pressure regulating valve, the B column pressure regulating valve and the first vent hole acts on a main vehicle to control the air pressure of the main air pipe from small to large and control the output performance of the relay valve, so that automatic conversion of soft stepping, soft stepping and heavy stepping is achieved, and the requirements of different vehicle types are met through non-conflict adjustment of empty load and heavy load.
本发明涉及货车气路继动阀技术领域,尤其是公开了一种双调节适控变压控力挂车继动阀,包括主阀体,所述主阀体侧壁上固定有A柱调压阀和B柱调压阀。有益效果是:通过对主活塞比例差的加大,使主车控制主气管的气压作用力在后期对主活塞的绝对压制,保证重载需要的制动效果;对第二、第三通气孔与第一阀门的设置加大,此设置作用于制动初期,对第二工作腔室所形成的作用力,与主车控制主气管的作用力形成平衡对抗,保证空载所需的无比例输出的柔和性能;A、B柱调压阀和第一通气孔的设置,作用于迎合主车控制主气管的气压由小到大,控制继动阀的输出性能,而达到轻踩柔和重踩有力的自动转换,并通过空重载不冲突调节而满足不同车型的需求。
Double-adjustment adaptive-control variable-pressure and force-control trailer relay valve
一种双调节适控变压控力挂车继动阀
2022-12-23
Patent
Elektronische Ressource
Chinesisch
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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