The invention discloses a two limit oil and gas spring and hydraulic suspension system using the same, wherein the two limit of oil and gas spring comprises an outer cylinder and the inner cylinder, the cylinder wall of outer cylinder is provided with a buffer oil outlet, the outer cylinder of the end cover is provided with a height adjusting oil is communicated with the outer cylinder the tube cavity mouth. The suspension system includes a main inlet pipe and the oil return pipe, the inlet pipe is divided into 4 branches in each branch pipe, inlet pipe is connected with at least two two limit oil and gas spring, each of the two oil buffer limit oil gas spring mouth is connected with the accumulator, the oil in the same buffer an oil inlet pipe two limit oil gas spring mouth communicated with each other, each branch of the oil inlet pipe is provided with a first and a second switch type electromagnetic valve, third electromagnetic switch type valve with the tubing, the one-way valve is arranged on the tubing. The purpose is to provide a two limit position oil and gas spring and the suspension hydraulic system to use the suspension hydraulic system to automatically switch the two limit height.
【技术实现步骤摘要】
两极限位油气弹簧及使用其的悬架液压系统
本专利技术涉及车辆领域,特别是涉及一种用于特种车底盘的两极限位油气弹簧及使用该油气弹簧的悬架液压系统。
技术介绍
随着技术发展,商用车朝着高机动、高通过性方向发展。车辆在通过涵洞或进行铁路运输等特殊工况下,需要通过缩短油气弹簧长度将整车质心大幅度降低,但受轮边传动轴及转向拉杆球头处最大摆动角度限制,在车辆高速行驶过程中,油气弹簧上跳量不能超出球头最大允许角度,否则将导致杆系或传动轴损坏。因此车辆高速行驶时需在悬架系统中设计一级限位装置,避免零部件损坏。而在车辆静止调高时,需尽可能大的增加油气弹簧上跳量,并使一级限位装置失效,进而可最大限度的连续降低整车质心。同时,为提高整车自动化程度,尽量减少手动操作流程,需要设计一套能解决上述问题的可自动切换两级限位高度的悬架液压系统。
技术实现思路
本专利技术要解决的技术问题是提供一种两极限位油气弹簧及使用其的悬架液压系统,该悬架液压系统可自动切换两极限位高度。本专利技术中的两极限位油气弹簧,包括外缸筒和内缸筒,所述外缸筒的筒壁上设有缓冲油口,外缸筒的端盖上设有与外缸筒腔相连通的调高油口。本 ...
【技术保护点】
一种两极限位油气弹簧,包括外缸筒和内缸筒,其特征在于:所述外缸筒的筒壁上设有缓冲油口,外缸筒的端盖上设有与外缸筒腔相连通的调高油口。
【技术特征摘要】
1.一种两极限位油气弹簧,包括外缸筒和内缸筒,其特征在于:所述外缸筒的筒壁上设有缓冲油口,外缸筒的端盖上设有与外缸筒腔相连通的调高油口。2.一种使用权利要求1所述两极限位油气弹簧的悬架液压系统,其特征在于:包括主进油管和回油管,所述主进油管分为4个支进油管,4个支进油管分别为左前支进油管、右前支进油管、左后支进油管和右后支进油管,每个支进油管上均连接有至少两个所述两极限位油气弹簧,支进油管与两极限位油气弹簧的调高油口连通,每个两极限位油气弹簧的缓冲油口各连接有一个...
【专利技术属性】
技术研发人员:郭建伟,何寥,徐轶群,文明,谢文建,杨献学,刘洪波,
申请(专利权)人:北京航天发射技术研究所,中国运载火箭技术研究院,
类型:发明
国别省市:北京,11
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