The steel ball type steering shaft with the redundant structure and the ball frame structure comprise a spline shaft, a spline pipe and a steel ball retainer assembly, the spline shaft is embedded in the spline pipe, and peach-shaped raceways I and spline teeth are formed in the outer side wall of the end, facing the spline pipe, of the spline shaft at equal intervals in the circumferential direction of the spline shaft; a peach-shaped raceway II and a spline tooth groove are formed in the inner wall of the spline pipe; the steel ball retainer assembly comprises a steel ball retainer, a plurality of containing grooves are formed in the positions, corresponding to the first peach-shaped roller paths, of the steel ball retainer, and rolling friction pieces are arranged in the containing grooves. Meshing folding teeth protruding outwards are arranged at the positions, corresponding to the spline teeth, of the steel ball retainer. The steel ball retainer is in clearance fit with the spline shaft and the spline pipe, and the device has a redundancy function and is high in assembly efficiency; the stability of the whole structure of the steel ball retainer assembly is good; the sliding friction force of the sliding pair is low, the wear resistance of the sliding pair is good, and the structure is simple.
本发明公开了一种具有冗余结构的钢球式转向轴及球架结构,包括花键轴、花键管和钢球保持架总成,所述花键轴嵌套在花键管内,花键轴位于朝向花键管一端的外侧壁上沿其圆周方向等间距开设有桃形滚道一和花键齿;花键管内壁开设有桃形滚道二和花键齿槽;钢球保持架总成包括钢球保持架,钢球保持架上位于对应桃形滚道一的位置处开设有多个容纳槽,且容纳槽内均设有滚动摩擦件;所述钢球保持架上位于对应花键齿的位置处均设有向外凸出的啮合折齿;所述钢球保持架与花键轴和花键管间隙配合,本发明具有冗余功能,且装配效率高;钢球保持架总成整体结构的稳定性好;滑动副的滑动摩擦力低,滑动副的耐磨性好,结构简单等优点。
Steel ball type steering shaft with redundant structure and ball frame structure
一种具有冗余结构的钢球式转向轴及球架结构
2022-10-11
Patent
Elektronische Ressource
Chinesisch
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