Steering gear shell with lubricating channel

By introducing a combination of a lubricating oil sprayer and a circulating pump into the steering gear housing, the problems of uneven lubrication and oil waste are solved, achieving efficient recycling and uniform distribution of lubricating oil and extending the service life of the steering mechanism.

CN224090272UActive Publication Date: 2026-04-07ANHUI SHENGRUN AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-28
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Insufficient lubrication during long-term use of existing steering gear housings can lead to wear or breakage of the gear teeth. Traditional lubrication methods suffer from uneven lubrication and oil waste, and cannot accurately control the supply of lubricating oil or recycle it.

Method used

The system employs a lubricating oil sprayer and a lubricating oil circulation pump. The lubricating oil sprayer sprays lubricating oil onto the steering rack and gear meshing positions, while the lubricating oil circulation pump recovers unused lubricating oil and circulates it back to the system. Combined with auxiliary pipes and connecting pipes, the system precisely delivers lubricating oil to key friction points.

Benefits of technology

This achieves uniform distribution of lubricating oil, improves lubrication efficiency, reduces wear, extends the service life of the steering mechanism, and lowers maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a steering gear shell with a lubricating channel, which relates to the technical field of steering gears and comprises a shell, a steering rack is transversely and slidably arranged in the shell, a connecting channel is fixed at the upper end of the shell, the end of the connecting channel is connected with a lubricating oil spraying machine, and the lubricating oil spraying machine is used for spraying lubricating oil into the connecting channel. A lubricating oil circulating pump is arranged at the lower end of the shell and used for recycling unused lubricating oil and circularly supplying the lubricating oil to the lubricating oil spraying machine. The steering engine shell is provided with a lubricating channel. Lubricating oil is regularly sprayed to the meshing position of the steering rack and the gear through the lubricating oil spraying machine to ensure uniform lubrication; the lubricating oil circulating pump recovers and resupplies unused lubricating oil, so that the utilization rate is increased; the auxiliary pipe and the connecting pipe accurately convey lubricating oil to key friction parts, and abrasion is reduced; the support and the limiting frame enhance the stability of the lubricating oil sprayer and facilitate maintenance; the overall structure optimizes the lubricating efficiency, prolongs the service life of the steering mechanism, and reduces the maintenance cost.
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Description

Technical Field

[0001] This utility model relates to the field of steering gear technology, specifically a steering gear housing with a lubrication channel. Background Technology

[0002] The steering rack inside the existing steering gear housing is prone to wear or breakage due to insufficient lubrication during long-term lateral sliding. Traditional lubrication methods usually involve manual filling or simple oil dripping, which results in uneven lubrication and oil waste.

[0003] Some improvement solutions use fixed oil circuit lubrication, but they still cannot accurately control the supply of lubricating oil and its recycling, which affects the lubrication effect and system stability.

[0004] Therefore, there is an urgent need for a steering gear housing structure that can automatically and precisely lubricate and recycle lubricating oil. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a steering gear housing with a lubrication channel, which solves the problem of supplying lubricating oil inside the steering gear housing. By using a lubricating oil sprayer and a lubricating oil circulation pump to supply lubricating oil to the inside of the housing, it provides a better lubrication effect and saves lubricating oil.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a steering gear housing with a lubrication channel, comprising a housing, a steering rack slidably disposed laterally inside the housing, a connecting channel fixed at the upper end of the housing, a lubricating oil sprayer connected to the end of the connecting channel, the lubricating oil sprayer being used to spray lubricating oil into the connecting channel, and a lubricating oil circulation pump provided at the lower end of the housing for recovering unused lubricating oil and circulating it to the lubricating oil sprayer.

[0007] Furthermore: the connecting channel includes a fixed pipe, the upper end of which is connected to a connecting pipe, and a connecting pipe is fixed between the two connecting pipes. The connecting pipe is connected to the lubricating oil sprayer and is located at the gear meshing position in the middle of the housing.

[0008] Furthermore, an auxiliary pipe is fixed to the side of the housing, and the auxiliary pipe is connected to a lubricating oil sprayer to deliver lubricating oil to the side meshing position of the gear and the steering rack.

[0009] Furthermore: the output end of the lubricating oil circulation pump is connected to the side injection end of the lubricating oil sprayer, a fixing frame is fixed at the lower end of the housing, an oil tank is placed inside the fixing frame, the side of the oil tank is connected to the circulation pump, an oil collection groove is provided at the lower end of the inner side of the housing, and the middle of the oil collection groove is connected to the upper end of the oil tank for collecting excess lubricating oil and returning it to the oil tank.

[0010] Furthermore: a bracket is fixed to the upper end of the housing, the lubricating oil sprayer is placed on the bracket, and a limit frame is rotatably connected to both sides of the bracket. The limit frame can be rotated to the front edge of the lubricating oil sprayer to fix its position.

[0011] Furthermore, the lubricating oil sprayer sprays lubricating oil at regular intervals via vehicle control or through manual operation, so as to evenly apply lubricating oil when the steering rack moves.

[0012] This invention provides a steering gear housing with a lubrication channel. Compared with the prior art, it has the following advantages:

[0013] The steering gear housing features a lubrication channel; a lubricating oil sprayer periodically sprays lubricating oil onto the steering rack and gear meshing positions to ensure uniform lubrication; a lubricating oil circulation pump recovers unused lubricating oil and resupplyes it, improving utilization; auxiliary pipes and connecting pipes precisely deliver lubricating oil to key friction points, reducing wear; brackets and limit frames enhance the stability of the lubricating oil sprayer and facilitate maintenance; the overall structure optimizes lubrication efficiency, extends the service life of the steering mechanism, and reduces maintenance costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the housing and steering rack of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the lubricating oil circulating pump and oil tank of this utility model;

[0017] Figure 4 This is a schematic diagram of the connection channel of this utility model;

[0018] Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle.

[0019] In the diagram: 1. Housing; 2. Steering rack; 3. Fixed pipe; 4. Connecting pipe; 5. Connecting pipe; 6. Lubricating oil sprayer; 7. Auxiliary pipe; 8. Bracket; 9. Limiting bracket; 10. Fixed bracket; 11. Oil tank; 12. Lubricating oil circulation pump; 13. Oil collection trough. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5 This utility model provides a technical solution: a steering gear housing with a lubrication channel, specifically including a housing 1. A steering rack 2 is laterally slidably arranged in the housing 1. When the steering rack 2 moves laterally within the housing 1, it needs to be maintained with lubricating oil periodically to prevent damage or breakage of the teeth on the steering rack 2; this is prior art known in this field and will not be described in detail here. A connecting channel is fixed at the upper end of the housing 1, and a lubricating oil sprayer 6 is fixedly connected to the end of the connecting channel. The lubricating oil sprayer 6 periodically sprays lubricating oil into the connecting channel. When the vehicle is driving and turning, the flowing lubricating oil is fully rotated and spread evenly. The lubricating oil sprayer 6 is operated through vehicle control. A lubricating oil circulation pump 12 is provided at the lower end of the housing 1. The lubricating oil circulation pump 12 circulates the lubricating oil that has not been spread evenly, thus making full use of the lubricating oil.

[0022] The connecting channel includes a fixed pipe 3, with a connecting pipe 4 connected to the upper end of the fixed pipe 3. The connection between the fixed pipe 3 and the housing 1 is welded. A connecting pipe 5 is fixedly connected between the connecting pipes 4 on both sides. The lower end of the connecting pipe 5 is located at the top of the housing 1. The connecting pipe 5 is connected to the lubricating oil sprayer 6 and is located at the gear meshing position in the middle of the housing 1. An auxiliary pipe 7 is fixedly connected to the side of the housing 1 and is connected to the lubricating oil sprayer 6. Through the correspondence of the connecting pipe 5 and the auxiliary pipe 7, the lubricating oil is directed to the meshing position of the gear and the steering rack 2. Similarly, the lubricating oil flows into the connecting pipe 4 through the connecting pipe 5 and then flows onto the steering rack 2 through the fixed pipe 3. This provides better lubrication and better maintenance for the steering rack 2 and the gear.

[0023] The output end of the lubricating oil circulation pump 12 is connected to the injection end of the lubricating oil sprayer 6. A fixing frame 10 is fixed at the lower end of the housing 1. An oil tank 11 is installed inside the fixing frame 10. The side of the oil tank 11 is connected to the lubricating oil circulation pump 12. An oil collection groove 13 is opened at the lower inner side of the housing 1. The oil collection groove 13 collects excess lubricating oil. After collection, it is concentrated at the upper end of the oil tank 11 and then flows into the oil tank 11 by its own gravity.

[0024] A bracket 8 is fixed at the upper end of the housing 1. The lubricating oil sprayer 6 is placed on the upper end of the bracket 8. Limiting frames 9 are rotatably connected to both sides of the bracket 8. When the limiting frames 9 are rotated upward, the lubricating oil sprayer 6 can be maintained and repaired. When the limiting frames 9 are rotated to the front edge of the lubricating oil sprayer 6, the position of the lubricating oil sprayer 6 is fixed and restricted, preventing the lubricating oil sprayer 6 from loosening and shaking, and improving the overall stability.

Claims

1. A steering gear housing with a lubrication channel, comprising a housing (1), wherein a steering rack (2) is laterally slidably disposed within the housing (1), characterized in that: The upper end of the housing (1) is fixed with a connecting channel, and the end of the connecting channel is connected to a lubricating oil sprayer (6). The lubricating oil sprayer (6) is used to spray lubricating oil into the connecting channel. The lower end of the housing (1) is provided with a lubricating oil circulation pump (12) for recovering unused lubricating oil and circulating it to the lubricating oil sprayer (6).

2. The steering gear housing with lubrication channel according to claim 1, characterized in that: The connection channel includes a fixed pipe (3), the upper end of which is connected to a connecting pipe (4), and a connecting pipe (5) is fixed between the two connecting pipes (4). The connecting pipe (5) is connected to the lubricating oil sprayer (6) and is located at the gear meshing position in the middle of the housing (1).

3. A steering gear housing with a lubrication channel according to claim 2, characterized in that: An auxiliary pipe (7) is fixed to the side of the housing (1). The auxiliary pipe (7) is connected to the lubricating oil sprayer (6) and is used to deliver lubricating oil to the side meshing position of the gear and the steering rack (2).

4. A steering gear housing with a lubrication channel according to claim 2, characterized in that: The output end of the lubricating oil circulation pump (12) is connected to the side injection end of the lubricating oil sprayer (6). A fixing frame (10) is fixed at the lower end of the housing (1). An oil tank (11) is placed inside the fixing frame (10). The side of the oil tank (11) is connected to the circulation pump (12). An oil collection groove (13) is provided at the lower end of the inner side of the housing (1). The middle of the oil collection groove (13) is connected to the upper end of the oil tank (11) to collect excess lubricating oil and return it to the oil tank (11).

5. A steering gear housing with a lubrication channel according to claim 2, characterized in that: The upper end of the housing (1) is fixed with a bracket (8), the lubricating oil sprayer (6) is placed on the bracket (8), and the bracket (8) is rotatably connected with a limit frame (9) on both sides. The limit frame (9) can be rotated to the front edge of the lubricating oil sprayer (6) to fix its position.

6. A steering gear housing with a lubrication channel according to claim 2, characterized in that: The lubricating oil sprayer (6) sprays lubricating oil at regular intervals via vehicle control or by manual operation, so as to evenly apply lubricating oil when the steering rack (2) moves.