CN218377588U - Worm wheel and worm wheel hub cooperation structure - Google Patents
Worm wheel and worm wheel hub cooperation structure Download PDFInfo
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- CN218377588U CN218377588U CN202222317863.4U CN202222317863U CN218377588U CN 218377588 U CN218377588 U CN 218377588U CN 202222317863 U CN202222317863 U CN 202222317863U CN 218377588 U CN218377588 U CN 218377588U
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- worm wheel
- wheel hub
- cylinder part
- wheel body
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Abstract
The utility model discloses a worm wheel and worm wheel hub cooperation structure, including worm wheel body and worm wheel hub: the worm wheel hub is positioned on the inner side of the worm wheel body; the inner side wall of the worm wheel body is provided with a convex part; the worm wheel hub comprises an inner cylinder part, an annular straight part is arranged in the middle of the outer side wall of the inner cylinder part, an outer cylinder part is arranged on one side, away from the inner cylinder part, of the annular straight part, and a tooth part is arranged on the outer side wall of the outer cylinder part. Still increaseed the area of contact in the worm wheel body under the prerequisite based on worm wheel hub self intensity increases, increase worm wheel hub and worm wheel body's cooperation frictional force then, promote worm gear assembly's fatigue resistance ability, satisfy under the power-assisted steering output and the durable reliable prerequisite, adjustment worm gear assembly body structure, through theoretical analysis, increase area of contact friction increase between two parts, satisfy new energy automobile power-assisted steering steady output and endurance reliability.
Description
Technical Field
The utility model relates to a worm gear technical field specifically is a worm wheel and worm wheel hub cooperation structure.
Background
The power-assisted steering speed reducing mechanism comprises a worm wheel and a worm, wherein the worm wheel comprises a worm wheel body and a worm wheel hub, the instantaneous stress of the worm wheel assembly is large when the motor provides power assistance, the worm wheel assembly is required to have superior fatigue resistance, the contact surface of the existing worm wheel body and the worm wheel hub matching structure is small, the overall structure of the worm wheel hub is relatively weak, and the risk of worm wheel slippage and worm wheel hub breakage exists under limit working conditions or long-term instantaneous impact.
Therefore, a worm wheel and worm wheel hub matching structure is provided.
Disclosure of Invention
An object of the utility model is to provide a worm wheel and worm wheel hub cooperation structure to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a worm wheel and worm wheel hub cooperation structure, includes worm wheel body and worm wheel hub:
the worm wheel hub is positioned on the inner side of the worm wheel body;
the inner side wall of the worm wheel body is provided with a convex part;
the worm wheel hub comprises an inner cylinder part, an annular straight part is arranged in the middle of the outer side wall of the inner cylinder part, an outer cylinder part is arranged on one side, away from the inner cylinder part, of the annular straight part, and a tooth part is arranged on the outer side wall of the outer cylinder part.
Preferably, the following components: one side of the annular straight part, the outer cylinder part and the tooth part are positioned in the worm wheel body and the bulge part.
Preferably, the following components: the inner cylinder part, the annular straight part, the outer cylinder part and the tooth part are all integrally formed, and round corners are arranged at the connecting parts.
Preferably: the worm wheel hub and the worm wheel body are formed by resin transfer molding.
Compared with the prior art, the beneficial effects of the utility model are that: still strengthened the area of contact in the worm wheel body under the prerequisite based on worm wheel hub self intensity increases, then increased the cooperation frictional force of worm wheel hub and worm wheel body, promoted worm wheel assembly's fatigue resistance ability, satisfying under the output of power assisted steering and durable reliable's prerequisite, adjustment worm wheel assembly body structure, through theoretical analysis, the increase of frictional force between the increase area of contact two parts satisfies new energy automobile and turns to steady output of power assisted steering and endurance reliability.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic sectional view of the present invention;
fig. 3 is a schematic structural view of the worm wheel hub of the present invention;
fig. 4 is a schematic structural view of the worm wheel body of the present invention;
fig. 5 is a schematic structural diagram of the prior art.
In the figure: 1. a worm gear body; 11. a protrusion; 2. a worm wheel hub; 21. an inner cylinder part; 22. an annular straight portion; 23. an outer cylinder portion; 24. a tooth portion; 25. a rounded corner.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Examples
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a worm wheel and worm wheel hub cooperation structure, includes worm wheel body 1 and worm wheel hub 2:
the worm wheel hub 2 is positioned on the inner side of the worm wheel body 1;
the inner side wall of the worm wheel body 1 is provided with a convex part 11;
the worm wheel hub 2 comprises an inner cylinder part 21, an annular straight part 22 is arranged in the middle of the outer side wall of the inner cylinder part 21, an outer cylinder part 23 is arranged on one side, away from the inner cylinder part 21, of the annular straight part 22, and a tooth part 24 is arranged on the outer side wall of the outer cylinder part 23.
As shown in fig. 2: one side of the annular straight portion 22, the outer cylindrical portion 23 and the toothed portion 24 are located inside the worm wheel body 1 and the boss portion 11.
As shown in fig. 2: the inner cylindrical portion 21, the annular straight portion 22, the outer cylindrical portion 23, and the tooth portions 24 are integrally formed, and rounded portions 25 are provided at the junctions.
As shown in fig. 1: the worm wheel hub 2 and the worm wheel body 1 are formed by resin transfer molding.
The working principle is as follows:
this worm wheel is used for the electronic power assisted steering tubular column of automobile steering system spare part, and the helping hand motor passes through the worm and transmits power to the worm wheel, and the worm wheel is connected with the steering drive axle to transmit helping hand moment to the transmission shaft, the high-efficient, steady output of guarantee power assisted steering.
Its effect has two points:
1. the speed reduction and torque increase effects are achieved through reasonable speed reduction ratio setting;
2. and transmitting the output torque of the motor to a steering transmission shaft.
Still increaseed the area of contact in the worm wheel body under the prerequisite based on worm wheel hub self intensity increases, increase worm wheel hub and worm wheel body's cooperation frictional force then, promote worm gear assembly's fatigue resistance ability, satisfy under the power-assisted steering output and the durable reliable prerequisite, adjustment worm gear assembly body structure, through theoretical analysis, increase area of contact friction increase between two parts, satisfy new energy automobile power-assisted steering steady output and endurance reliability.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a worm wheel and worm wheel hub cooperation structure, includes worm wheel body (1) and worm wheel hub (2), its characterized in that:
the worm wheel hub (2) is positioned on the inner side of the worm wheel body (1);
the inner side wall of the worm wheel body (1) is provided with a convex part (11);
the worm wheel hub (2) comprises an inner cylinder part (21), an annular straight part (22) is arranged in the middle of the outer side wall of the inner cylinder part (21), an outer cylinder part (23) is arranged on one side, away from the inner cylinder part (21), of the annular straight part (22), and a tooth part (24) is arranged on the outer side wall of the outer cylinder part (23).
2. A worm wheel and worm wheel hub engagement as claimed in claim 1, wherein: one side of the annular straight part (22), the outer cylinder part (23) and the tooth part (24) are positioned inside the worm wheel body (1) and the convex part (11).
3. A worm wheel and worm wheel hub engagement as claimed in claim 1, wherein: the inner cylinder part (21), the annular straight part (22), the outer cylinder part (23) and the tooth part (24) are integrally formed, and round corners (25) are arranged at the connecting parts.
4. A worm wheel and worm wheel hub engagement as claimed in claim 1, wherein: the worm wheel hub (2) and the worm wheel body (1) are formed through resin transfer molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222317863.4U CN218377588U (en) | 2022-08-31 | 2022-08-31 | Worm wheel and worm wheel hub cooperation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222317863.4U CN218377588U (en) | 2022-08-31 | 2022-08-31 | Worm wheel and worm wheel hub cooperation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218377588U true CN218377588U (en) | 2023-01-24 |
Family
ID=84970701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222317863.4U Active CN218377588U (en) | 2022-08-31 | 2022-08-31 | Worm wheel and worm wheel hub cooperation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218377588U (en) |
-
2022
- 2022-08-31 CN CN202222317863.4U patent/CN218377588U/en active Active
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