CN211107665U - Steering gear rack with lubricating oil groove - Google Patents
Steering gear rack with lubricating oil groove Download PDFInfo
- Publication number
- CN211107665U CN211107665U CN201921828566.8U CN201921828566U CN211107665U CN 211107665 U CN211107665 U CN 211107665U CN 201921828566 U CN201921828566 U CN 201921828566U CN 211107665 U CN211107665 U CN 211107665U
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- rack
- steering gear
- lubricating oil
- steering
- oil groove
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Abstract
The utility model relates to a take steering gear rack of lubrication groove, including the rack body, its characterized in that, the partial back that contains the tooth of rack is provided with an oil storage tank. The utility model discloses a set up the mode of oil storage tank on the rack, utilize the lubricating oil of filling in the oil groove to reduce the frictional force between steering gear rack and the rack briquetting, avoided the wearing and tearing between the part, increased life.
Description
Technical Field
The invention belongs to the field of automobile electric power steering system parts, and particularly relates to a steering gear rack with a lubricating oil groove.
Background
During normal running of the automobile, left turning, right turning and straight running are three basic motion actions. In order to ensure the stable running of the automobile, a set of mechanism is arranged between the steering wheels of the automobile to complete the running of the automobile, the mechanism for flexibly changing the running direction of the automobile is called as a steering system of the automobile, and the mechanism is connected to a steering wheel of an automobile cab through various rigidities and is directly controlled by a driver.
The steering gear is an important component in an automobile steering system, the gear rack steering gear is a mechanical steering gear which is commonly applied in the automobile steering system, the structural design form of the mechanical steering gear has direct influence on the friction feeling, the center feeling and the aligning performance of the whole automobile steering system, and further has direct influence on the quality feeling and the driving pleasure of the whole automobile. The conventional electric power steering system is usually of a pure mechanical structure, and in the steering process of an automobile, a rack and a pressing block are in a relative sliding state for a long time, so that the rack and the pressing block are abraded and generate heat seriously, and the performance and the service life of parts are influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a take steering gear rack of lubrication groove solves current pure mechanical structure's electronic power steering system, at the auto steering in-process, and the rack slides for a long time in the rack contact surface on the briquetting, leads to rack and briquetting to generate heat wearing and tearing to influence the problem in performance and life-span between the part.
The utility model provides a technical scheme that its technical problem adopted is:
a steering gear rack with a lubricating oil groove comprises a rack body and is characterized in that an oil storage groove is formed in the opposite surface of a tooth-containing part of the rack.
Preferably, the length of the oil storage tank is less than the length of the tooth-containing part of the rack and is 90-97% of the stroke of the rack.
Preferably, the height of the oil storage tank is smaller than that of the rack contact curved surface on the rack stop block.
The utility model has the advantages that: the utility model provides a pair of take steering gear rack of lubrication groove through the mode that sets up the oil storage tank on the rack, utilizes the lubricating oil of oil groove intussuseption to guarantee the lubrication degree between rack and the briquetting, has avoided wearing and tearing between the part, has increased life.
The present invention will be described in more detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a structural diagram of a steering gear rack with a lubricating oil groove, which contains a tooth surface.
Fig. 2 is the utility model discloses a take steering gear rack of lubrication groove, contains the structure chart of flank of tooth relative position, has a lubrication groove.
Fig. 3 is a schematic cross-sectional view of the steering gear rack with the lubricating oil groove of the present invention.
Fig. 4 is a schematic view of the rack structure in the steering gear according to the present invention.
Detailed Description
In the embodiment, a steering gear rack with a lubricating oil groove as shown in fig. 1 comprises a rack body 1, a transverse oil groove 3 is arranged on the back surface of a tooth-containing part 2 (shown in fig. 2 and 3) of the rack 1, and the oil groove 3 is filled with lubricating oil.
As shown in figure 2, the length of the oil storage tank 3 is smaller than the length of the tooth-containing part 2 on the rack 1 and is 90-97% of the stroke of the rack, so that the reasonable utilization range of lubricating oil is ensured.
As shown in the schematic diagram of the rack structure in the steering gear of fig. 4, one side of the oil storage tank 3 of the rack 1 is attached to the rack contact curved surface 5 of the rack stopper, and in the steering process of the steering gear, the gear applies a meshing positioning force to the rack 1, so that the rack 1 is driven to move in the rack contact curved surface 5. Set up the height that highly is less than rack dog 4 and go up rack contact curved surface 5 with oil storage tank 3, make oil storage tank 3 wrapped up in rack contact curved surface 5, at 1 in-process of motion of rack, the lubricating oil of 3 in the oil storage tank can reduce the frictional force between rack 1 and the rack contact curved surface 5, plays the sufficient lubrication effect.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention should not be limited thereby, and all equivalent changes made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (3)
1. The utility model provides a take steering gear rack of lubrication groove, includes rack (1) body, its characterized in that, the portion (2) back that contains the tooth of rack (1) is provided with an oil storage tank (3).
2. A steering rack with a lubricating oil sump according to claim 1, characterized in that the length of the oil reservoir (3) is 90% to 97% of the rack stroke.
3. A steering rack with a lubricating oil groove as defined in claim 1, characterized in that the oil reservoir (3) has a height smaller than the height of the curved rack-contacting surface (5) of the rack stopper (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921828566.8U CN211107665U (en) | 2019-10-29 | 2019-10-29 | Steering gear rack with lubricating oil groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921828566.8U CN211107665U (en) | 2019-10-29 | 2019-10-29 | Steering gear rack with lubricating oil groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211107665U true CN211107665U (en) | 2020-07-28 |
Family
ID=71719470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921828566.8U Active CN211107665U (en) | 2019-10-29 | 2019-10-29 | Steering gear rack with lubricating oil groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211107665U (en) |
-
2019
- 2019-10-29 CN CN201921828566.8U patent/CN211107665U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |