The invention discloses a recirculating ball type steering gear and belongs to the technical field of steering gear equipment.The recirculating ball type steering gear comprises a shell, a screw rod, a nut, a sector gear and a rocker arm, the screw rod is rotationally connected with the shell, the nut is in threaded connection with the screw rod, and the nut is in sliding connection with the shell through a guide structure; the guide structure is used for guiding the nut to move in the axial direction of the screw, the sector gear is fixedly connected with the rocker arm and hinged to the shell, a gear is arranged on the outer wall of the nut and meshed with the sector gear, and a circulating pipe is arranged on the nut and used for connecting a section of threaded channel between the nut and the screw end to end to form an annular closed channel. The closed channel is provided with the multiple rigid balls, the elastic balls are arranged between the adjacent rigid balls and used for separating the adjacent rigid balls and preventing the adjacent rigid balls from making contact, and therefore extrusion acting force and rolling resistance generated when rolling displacement of the adjacent rigid balls is different are reduced, torque of the screw is reduced, and vehicle steering is easier.
本发明公开了一种循环球式转向器,属于转向器设备技术领域,本循环球式转向器包括壳体、螺杆,螺母、扇形齿轮和摇臂,其中,螺杆与壳体转动连接,螺母与螺杆螺纹连接,且螺母与壳体经导向结构构滑动连接,导向结构用于引导螺母沿螺杆轴向移动,扇形齿轮与摇臂固定连接且铰接在壳体上,螺母外壁设有齿轮并与扇形齿轮啮合,螺母上设有循环管,用于将螺母、螺杆之间的一段螺纹通道首尾连接形成环状的闭路通道,闭路通道设置多个刚性球体,本发明在相邻刚性球体之间设置弹性球体,用于将相邻的刚性球进行分离,避免其接触,从而降低了相邻刚性球滚动位移不同时的挤压作用力和滚动的阻力,降低了螺杆的扭矩,使车辆转向更加轻松。
Recirculating ball type steering gear
循环球式转向器
2024-01-02
Patent
Electronic Resource
Chinese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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