The invention provides a double chamber piston type accumulator for hydro pneumatic suspension, which belongs to the technical field of hydro pneumatic suspension. The double-chamber piston accumulator for oil-gas suspension includes the upper cylinder block and the lower cylinder block. The inner cross-sectional area of the upper cylinder block is not equal to the inner cross-sectional area of the lower cylinder block. The sealing connection between the lower end of the upper cylinder block and the upper end of the lower cylinder block connects the upper cylinder block and the lower cylinder block. The upper cylinder block is provided with an upper floating piston, and the lower cylinder block is provided with Limiting blocks are arranged between the upper and lower floating piston on the upper cylinder block or the lower cylinder block, and oil holes are arranged between the upper and lower floating piston. Oil nozzles are connected between the upper and lower floating piston on the upper cylinder block or the lower cylinder block, and the upper cylinder block is connected with the upper and lower air nozzles through the airway, and the lower cylinder block is connected with the lower air nozzles through the airway. . The invention has the beneficial effect that the effective working area of the two air chambers is different, and the damping thrust is different, so that the cushioning and vibration reduction provided by the hydro-pneumatic suspension can be guaranteed while meeting the requirements of the vehicle in no-load and full-load.
【技术实现步骤摘要】
油气悬架用双气室活塞式蓄能器
本专利技术涉及油气悬架
,特别是涉及一种油气悬架用双气室活塞式蓄能器。
技术介绍
油气悬架可以改变刚度,其可以对车辆进行较好的缓冲减振,已广泛应用于重型卡车、工程车辆。目前的油气悬架一般由油缸和单气室蓄能器组成,其原理是通过单气室蓄能器气腔的气压力来调节刚度。目前的单气室蓄能器不能保证油缸提供的缓冲减振同时满足车辆在空载、满载的要求。具体的,当调校单气室蓄能器气腔的气压力满足车辆空载行驶时,则在车辆满载状态下油缸的活塞杆位于油缸的上端,活塞杆的缓冲行程很小,使油缸的缓冲减振作用较差;当调校单气室蓄能器气腔的气压力满足车辆满载行驶时,则在车辆空载状态下油缸的活塞杆位于油缸的下端,活塞杆的缓冲行程也很小,使油缸的缓冲减振作用较差;当调校蓄能器气腔的气压力为中间值时,则油缸中活塞杆的缓冲行程偏大,但使车辆的底盘高度变化较大,不符合车辆设计要求。
技术实现思路
本专利技术的目的在于提供一种油气悬架用双气室活塞式蓄能器,解决目前的蓄能器不能保证油气悬架提供的缓冲减振同时满足车辆在空载、满载的要求的技术问题。本专利技术提供一种油气悬架用双气室活塞式蓄能器,油气悬架用双气室活塞式蓄能器包括上缸体和下缸体,上缸体的内横截面积与下缸体的内横截面积不相等,上缸体的下端与下缸体的上端密封连接使上缸体和下缸体连通,上缸体内设置有可沿上缸体的轴线作直线往复运动的上浮动活塞,下缸体内设置有可沿下缸体的轴线作直线往复运动的下浮动活塞,在上浮动活塞和下浮动活塞之间于上缸体或下缸体设置有限位块,限位块的中间位置开设有上下贯通的油孔,在上浮动活塞和下浮动活塞之 ...
【技术保护点】
1.一种油气悬架用双气室活塞式蓄能器,其特征在于:油气悬架用双气室活塞式蓄能器包括上缸体和下缸体,上缸体的内横截面积与下缸体的内横截面积不相等,上缸体的下端与下缸体的上端密封连接使上缸体和下缸体连通,上缸体内设置有可沿上缸体的轴线作直线往复运动的上浮动活塞,下缸体内设置有可沿下缸体的轴线作直线往复运动的下浮动活塞,在上浮动活塞和下浮动活塞之间于上缸体或下缸体设置有限位块,限位块的中间位置开设有上下贯通的油孔,在上浮动活塞和下浮动活塞之间于上缸体或下缸体连接有油嘴,上缸体经气道连接有上注气嘴,下缸体经气道连接有下注气嘴。
【技术特征摘要】
1.一种油气悬架用双气室活塞式蓄能器,其特征在于:油气悬架用双气室活塞式蓄能器包括上缸体和下缸体,上缸体的内横截面积与下缸体的内横截面积不相等,上缸体的下端与下缸体的上端密封连接使上缸体和下缸体连通,上缸体内设置有可沿上缸体的轴线作直线往复运动的上浮动活塞,下缸体内设置有可沿下缸体的轴线作直线往复运动的下浮动活塞,在上浮动活塞和下浮动活塞之间于上缸体或下缸体设置有限位块,限位块的中间位置开设有上下贯通的油孔,在上浮动活塞和下浮动活塞之间于上缸体或下缸体连接有油嘴,上缸体经气道连接有上注气嘴,下缸体经气道连接有下注气嘴。2.根据权利要求1所述的油气悬架用双气室活塞式蓄能器,其特征在于:上缸体的内横截面积小于下缸体的内横截面积,上缸体的下端外壁设置有外螺纹,下缸体的上端内壁设置有内螺纹,上缸体的下端螺纹连接下缸体的上端。3.根据权利要求2所述的油气悬架用双气室活塞式蓄能器,其特征在于:所述限位块的外壁设置有外螺纹,上缸体的下端内壁设置有内螺纹,限位块螺纹连接上缸体的下端。4.根据权利要求3所...
【专利技术属性】
技术研发人员:王刚,于善利,冯绪良,
申请(专利权)人:山东万通液压股份有限公司,
类型:发明
国别省市:山东,37
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