Rear wheel steering assembly and vehicle

By using a locking nut and installing a stepped limit bearing inner ring in the rear wheel steering assembly, combined with a locking end cap and a limit ring to restrict the bearing outer ring, the problems of high machining difficulty and easy loosening in the prior art are solved, achieving higher machining accuracy and vehicle stability.

CN224375691UActive Publication Date: 2026-06-19CHENGDU DAOHENG CHASSIS INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGDU DAOHENG CHASSIS INTELLIGENT TECHNOLOGY CO LTD
Filing Date
2025-07-17
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

In existing rear wheel steering assemblies, the axial limiting structure of the bearing is difficult to process and is prone to loosening and damage under large impact loads, affecting the vehicle's stability and maneuverability.

Method used

A locking nut is used to limit the axial displacement of the inner ring of the bearing, and a step and a locking end cover are used to limit the axial displacement of the outer ring of the bearing. The locking end cover is connected to the main housing with screws to avoid machining threads on the inner cavity of the main housing and the outer wall of the locking end cover, thereby reducing the coaxiality requirement. Limiting rings are set on the long and short shafts to prevent excessive displacement of the transmission screw.

Benefits of technology

This reduces the machining difficulty of the main housing and locking end cap, reduces radial stress, prevents the steering assembly from loosening and being damaged under large impact loads, and improves the vehicle's stability and maneuverability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224375691U_ABST
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Abstract

The utility model relates to rear wheel steering technical field provides a rear wheel steering gear assembly and vehicle, rear wheel steering gear assembly includes main casing, auxiliary casing and motor, and main casing and auxiliary casing connect and form the cavity, and drive structure, screw nut, transmission screw and bearing are equipped in the cavity, the outer wall of screw nut is equipped with the locating step, and the inner chamber of main casing is equipped with the installation step, bearing inner ring cooperates with screw nut and leans against the locating step, and bearing outer ring cooperates with the inner chamber of main casing and leans against the installation step, the locking nut of limiting bearing inner ring axial displacement is threadedly connected on screw nut, the one end away from the installation step of bearing outer ring is equipped with the locking end cap of limiting bearing outer ring axial displacement, and the locking end cap is connected with main casing through screw, the utility model has low coaxiality processing requirement to main casing and locking end cap, has reduced the processing difficulty, and has reduced the radial stress of main casing, has solved the problem that steering gear assembly is easy to loosen and damage when under big impact load.
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