The invention provides a brake valve, and belongs to the technical field of hydraulic pressure. The problem that an existing brake valve lags in response is solved. The brake valve comprises a valve body and a push rod, a first oil cavity and a second oil cavity are formed between one end of a main valve element and the valve body, the first oil cavity is communicated with a brake oil way, a first one-way assembly capable of enabling the second oil cavity to be communicated with the brake oil way is arranged in the valve body, and a pressure relief cavity communicated with the second oil cavity and an oil return oil way is formed in the main valve element. A pressure relief valve element capable of blocking communication between the second oil cavity and the oil return way is arranged in the pressure relief cavity in a sliding mode, and the pressure relief cavity is provided with an opening communicated with the first oil cavity. A mounting hole communicated with the oil inlet path and the oil return path is further formed in the main valve element, an auxiliary valve element for blocking communication of the oil inlet path and the oil return path is arranged in the mounting hole in a sliding mode, a pressure cavity is formed between one end of the auxiliary valve element and the main valve element, the end of the auxiliary valve element is connected with the push rod, and the pressure cavity is communicated with the oil return path through the auxiliary valve element. The brake valve has the advantages that the response timeliness and the brake effect are improved.
本发明提供了一种制动阀,属于液压技术领域。它解决了现有制动阀响应滞后的问题。本制动阀包括阀体和推杆,主阀芯的一端与阀体之间形成第一油腔和第二油腔,第一油腔与制动油路连通,阀体内设有能使第二油腔向制动油路导通的第一单向组件,主阀芯中具有与第二油腔和回油油路均连通的泄压腔,泄压腔内滑动设置有能阻断第二油腔和回油油路连通的泄压阀芯,泄压腔具有与第一油腔连通的开口;主阀芯中还具有与进油油路和回油油路均连通的安装孔,安装孔内滑动设置有阻断进油油路和回油油路连通的辅助阀芯,辅助阀芯的一端与主阀芯之间形成有压力腔,该端与推杆相连,压力腔通过辅助阀芯与回油油路连通。本制动阀具有提高响应及时性和制动效果的优点。
Brake valve
一种制动阀
2025-02-28
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
European Patent Office | 2022
|European Patent Office | 2021
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