The invention relates to a piston for a power-assisted steering machine and the power-assisted steering machine. The piston comprises a first end part and a second end part; the first end part is provided with a sealing part for hermetically contacting the inner wall of a shell of the power-assisted steering machine; and the second end part is provided with a meshing part used for being meshed with a steering output shaft of the power-assisted steering machine, the maximum radial size of the cross section of the second end part is smaller than that of the cross section of the first end part, and the cross section contour of the end face of the second end part is not located in an area defined by the same circumference. By adoption of the power-assisted steering engine, manufacturing material consumption of parts such as the shell and the piston can be effectively reduced, the overall weight of the power-assisted steering engine can be reduced, and meanwhile the power-assisted steeringengine plays a positive role in achieving light weight of the whole engine, reducing energy consumption, reducing product manufacturing cost and the like.
本发明涉及用于助力转向机的活塞以及助力转向机。所述活塞包括:第一端部,其设置有密封部用于与助力转向机的壳体内壁密封接触;第二端部,其设置有啮合部用于与助力转向机的转向输出轴相啮合,并且被构造成其横截面的最大径向尺寸小于所述第一端部的横截面的最大径向尺寸,并且所述第二端部的端面处的横截面轮廓不位于同一圆周所限定的区域内。应用本发明可以有效节省例如壳体、活塞等零部件的制造材料消耗,并且有助于减轻助力转向机的整体重量,同时对于实现整机轻量化、减少能耗、降低产品制造成本等都具有积极作用。
Piston for power-assisted steering machine and power-assisted steering machine
用于助力转向机的活塞以及助力转向机
2020-07-28
Patent
Elektronische Ressource
Chinesisch
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