The invention discloses a hydro-pneumatic spring, and belongs to the technical field of hydraulic machines. The upper end of a cylinder barrel is fixedly connected with an upper hinge, a piston rod isfixedly connected with a lower hinge, the piston rod is of a hollow structure, and a piston rod inner hole is machined. The large outer circle of the piston rod is matched with an inner hole of a hollow annular guide sleeve, and the guide sleeve is fixedly connected with the lower end face of the cylinder barrel through a circumferentially arranged guide sleeve bolt. The piston rod is connected with a main piston, the piston rod is provided with a radial damping valve, a rodless cavity of the hydro-pneumatic communicates with the piston rod inner hole, and a check valve and a normally-throughhole of the damping valve are used for making a rod cavity of the hydro-pneumatic spring communicate with the piston rod inner hole. The upper hinge and the lower hinge are each provided with a jointbearing, and an oil injection hole is used for centralized lubrication of the joint bearings. The hydro-pneumatic spring has the characteristics of being simple in structure and large in bearing capacity, is suitable for the structure of oil-gas mixing or an external energy accumulator, and has wide application prospects in the fields of mine machinery and the like.
本发明公开了一种油气弹簧,属于液压机械技术领域。缸筒的上端与上铰链固连,活塞杆与下铰链固连,活塞杆为中空式结构,加工有活塞杆内孔;活塞杆的大外圆与中空的环形导向套的内孔配合安装,导向套与缸筒的下端面通过周向布置的导向套螺栓固连到一起;活塞杆与主活塞连接到一起;在活塞杆上加工有径向的阻尼阀,油气弹簧无杆腔与活塞杆内孔连通,阻尼阀的单向阀和常通孔用于连通油气弹簧有杆腔和活塞杆内孔;上铰链和下铰链分别装配有关节轴承,并加工注油孔用来给关节轴承进行集中润滑。本发明具有结构简单、承载力大的特点,适用于油气混合或外置蓄能器的结构,在矿山机械等领域有着广阔的使用前景。
Hydro-pneumatic spring
油气弹簧
2020-07-31
Patent
Electronic Resource
Chinese
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