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CN-224211125-U - Steering gear

CN224211125UCN 224211125 UCN224211125 UCN 224211125UCN-224211125-U

Abstract

The utility model provides a steering gear, which belongs to the technical field of automobile steering gears and comprises a steering gear shell, a steering shaft assembly and a first limit bearing, wherein the steering gear shell is provided with a first opening, the steering shaft assembly is arranged in the steering gear shell, one end of the steering shaft assembly penetrates out of the first opening, the other end of the steering shaft assembly is positioned in the steering gear shell, the first limit bearing is sleeved on the steering shaft assembly and is positioned at the first opening of the steering gear shell, and the outer ring of the first limit bearing is abutted against the inner wall of the first opening of the steering gear shell. Through set up the cover at the first opening part of steering engine shell and establish the first spacing bearing on steering spindle subassembly, can carry out spacingly to the steering spindle subassembly at first opening part, avoid the steering spindle subassembly to take place the condition of drunkenness to appear when the vehicle is driving to reduce the abnormal sound of vehicle, improve the comfort level that the driver and passengers drove.

Inventors

  • FENG BING
  • SHEN XIUMIN
  • GUO CHANGLI
  • DENG XIANCHUAN

Assignees

  • 赛力斯汽车有限公司

Dates

Publication Date
20260508
Application Date
20250520

Claims (10)

  1. 1. A steering engine, comprising: a steering gear housing having a first opening; The steering shaft assembly is arranged in the steering machine shell, and one end of the steering shaft assembly penetrates out of the first opening; The steering gear comprises a steering shaft assembly, a steering gear shell, a first limiting bearing sleeve and a second limiting bearing sleeve, wherein the first limiting bearing sleeve is arranged on the steering shaft assembly and positioned at a first opening of the steering gear shell, and an outer ring of the first limiting bearing is abutted with the inner wall of the first opening of the steering gear shell.
  2. 2. The steering engine as set forth in claim 1, wherein a limiting structure for limiting the first limiting bearing is provided on an inner wall of the steering engine housing.
  3. 3. The steering engine as set forth in claim 2, wherein the limit structure is a limit projection projecting in a thickness direction of the steering engine housing, the limit projection being provided around an inner wall of the steering engine housing.
  4. 4. A steering wheel according to any one of claims 1-3, wherein a seal is provided on a side of the first limit bearing adjacent to the first opening in an axial direction of the steering shaft assembly, the seal being adapted to seal a gap between the steering shaft assembly and an inner wall of the steering wheel housing.
  5. 5. The steering engine as set forth in claim 4, wherein said seal is a seal ring that is snappingly disposed over said steering shaft assembly, said seal ring being in interference engagement with said steering engine housing and said steering shaft assembly, respectively.
  6. 6. The steering engine as set forth in any one of claims 1-3, wherein the steering shaft assembly comprises a steering input shaft, a torsion bar and a steering gear, wherein the steering input shaft is provided with a placement cavity along the axial direction of the steering input shaft, the torsion bar is arranged in the placement cavity in a penetrating manner along the axial direction of the torsion bar, one end of the torsion bar, which is positioned in the placement cavity, is connected with the steering input shaft, the other end of the torsion bar is connected with the steering gear, the steering gear and the steering input shaft are sequentially connected along the axial direction of the steering input shaft, the first limit bearing is sleeved on the steering input shaft, the steering gear is sleeved with a second limit bearing, and the outer ring of the second limit bearing is abutted against the inner wall of the steering engine shell.
  7. 7. The steering engine as set forth in claim 6, wherein the torsion bar is provided with two third limit bearings sequentially and at intervals in the axial direction of the torsion bar, and outer rings of the two third limit bearings are abutted against the cavity wall of the placement cavity.
  8. 8. The steering engine as set forth in claim 6, wherein a sealing rubber plug is provided at the first opening, the sealing rubber plug being used to seal a gap between the steering engine housing and the steering input shaft.
  9. 9. The steering engine as set forth in any one of claims 1-3, wherein the steering engine housing is provided with a reinforcement structure adjacent to the first opening.
  10. 10. The steering engine as set forth in claim 9, wherein the reinforcing structure is a plurality of reinforcing ribs are provided on both the inner wall and the outer wall of the steering engine housing.

Description

Steering gear Technical Field The utility model belongs to the technical field of automobile steering gears, and particularly relates to a steering gear. Background With the upgrade of automobile experience consumption, people pay more attention to NVH (Noise, vibration, harshness, noise, vibration and harshness) performance of an automobile, and the better NVH performance of the automobile represents the in-car environment in which low noise can be provided for drivers and passengers in the running process of the automobile, so that the comfort of the automobile in driving is improved. The vehicle is used as a daily travel tool for most people, the time of drivers and passengers in the vehicle is long, the use frequency is high, and the riding comfort level of the vehicle is directly the physical health and psychological state of the drivers and passengers, so that the noise of the environment in the vehicle is reduced and more people are paid attention to. At present, because the structure in the steering engine is more complicated, under the current assembly condition, the limiting effect on the steering input shaft is poor, so when the vehicle runs on a fish scale pit road and other bumpy road surfaces, the steering input shaft is very easy to generate movement, the excitation of the road surface to the tire is transmitted to the steering engine, reverse impact is formed on the steering engine, meanwhile, due to the inertia effect of the steering wheel, the whole steering system is subjected to a pressure pulse process of intermittent release, abnormal sound of 'pyridazine' can be generated in the pressure release process, the driving experience of drivers and passengers is greatly influenced, and meanwhile, the abnormal sound is easy to enable the drivers and passengers to worry about the driving safety, so the problem is to be solved. Disclosure of utility model In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide a steering gear, which is used for solving the problems of abnormal noise and the like caused by poor steering performance of the steering gear in the prior art. To achieve the above and other related objects, the present utility model provides a steering engine comprising: a steering gear housing having a first opening; The steering shaft assembly is arranged in the steering machine shell, and one end of the steering shaft assembly penetrates out of the first opening; The steering gear comprises a steering shaft assembly, a steering gear shell, a first limiting bearing sleeve and a second limiting bearing sleeve, wherein the first limiting bearing sleeve is arranged on the steering shaft assembly and positioned at a first opening of the steering gear shell, and an outer ring of the first limiting bearing is abutted with the inner wall of the first opening of the steering gear shell. Optionally, a limiting structure for limiting the first limiting bearing is arranged on the inner wall of the steering gear shell. Optionally, the limit structure is a limit protrusion, the limit protrusion is protruding along the thickness direction of the steering gear shell, and the limit protrusion is arranged around the inner wall of the steering gear shell. Optionally, a sealing element is arranged on one side, close to the first opening, of the first limit bearing along the axial direction of the steering shaft assembly, and the sealing element is used for sealing a gap between the steering shaft assembly and the inner wall of the steering gear shell. Optionally, the sealing element is a sealing ring, the sealing ring is sleeved on the steering shaft assembly, and the sealing ring is in interference fit with the steering gear shell and the steering shaft assembly respectively. Optionally, the steering shaft assembly includes steering input shaft, torsion bar and steering gear, steering input shaft is followed steering input shaft's axial has seted up and has been placed the chamber, the torsion bar is followed the axial of torsion bar wears to establish place the intracavity, the torsion bar is located place the one end in chamber with steering input shaft connects, the other end of torsion bar with steering gear connects, steering gear with steering input shaft is followed steering input shaft's axial connects gradually, first spacing bearing housing is established steering input shaft is last, the cover is equipped with second spacing bearing on the steering gear, the outer lane of second spacing bearing with steering engine housing's inner wall looks butt. Optionally, the torsion bar is followed the axial of torsion bar is equipped with two third spacing bearings in proper order interval cover, and the outer lane of two third spacing bearings all with place the chamber wall looks butt in chamber. Optionally, a sealing rubber plug is arranged at the first opening and is used for blocking a gap between the steering gear shell and the steering inp