A gearbox with the valve of the valve between the air inlet and the air outlet and a vent valve, pressure outlet installed in the valve body inlet and outlet of a valve gate flow passage before the valve is provided with a reset spring, and a pressure regulating spring against the other end is provided with a piston rod balance piston. The front end of the piston ejector rod passes through the valve gate in the state that the valve is pulled away from the valve gate. The valve has a cylindrical guide column, which is at the intake side of the airflow passage. A fixed gap flow passage in the valve body with over a guide post, and guide the airflow through holes, a reset spring is installed in the guide member and the valve disc between the valve is in the valve body; the door directly processed. The balance piston and the piston ejector rod are integral components machined from the same billet. The utility model has the advantages of good structure and manufacturability. The direct advantage is that the output pressure of the product is stable and the tightness is good.
【技术实现步骤摘要】
【技术保护点】
一种变速箱用减压阀，该减压阀包括带有进气口（１１）、出气口（１２）和泄压口（１３）的阀体（１）、安装在阀体（１）内的进出气口（１１、１２）之间气流通路中的一个阀门口前的带有复位弹簧（４）的阀门（３）、以及被调压弹簧（７）顶住的平衡活塞（６）；所述阀门（３）为Ｔ型的旋转体结构，其竖划部分的圆柱是该阀门（３）的导向柱，该导向柱在气流通路的进气口（１１）一侧；复位弹簧（４）以空套在该导向柱之外的状态被抵压安装在该阀门（３）横划部分的圆盘与阀体（１）内的对应面之间；该复位弹簧（４）相背一端的该阀门（３）圆盘端面上固定有密封垫（５）；在平衡活塞（６）的轴心部紧固有一根其前端与调压弹簧（７）相背的活塞顶杆（６１），该活塞顶杆（６１）的前端以把其阀门（３）顶离该阀门口的状态穿过所述阀门口；该活塞顶杆（６１）的轴心处有一个其前端被它顶住的阀门（３）的密封垫（５）封住、其尾端与所述泄压口（１３）相通的泄压孔（６２）；其特征在于，在所述阀体（１）内的气流通路中固定安装有一个间隙配合地套住所述导向柱、且有气流通孔（３１２）的导向件（３１），所述复位弹簧（４）是安装在该导向件（３１）与所述阀门（３）的圆盘之间...
【技术特征摘要】
【专利技术属性】
技术研发人员：马国华，余华川，蒙玉虎，蔡兴富，蒋国英，
申请(专利权)人：重庆卡福汽车制动转向系统有限公司，
类型：实用新型
国别省市：85[中国|重庆]
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。