CN115750729A - Engine helical tooth vulcanization damper gear assembly - Google Patents
Engine helical tooth vulcanization damper gear assembly Download PDFInfo
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- CN115750729A CN115750729A CN202211451155.8A CN202211451155A CN115750729A CN 115750729 A CN115750729 A CN 115750729A CN 202211451155 A CN202211451155 A CN 202211451155A CN 115750729 A CN115750729 A CN 115750729A
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- ring
- bending section
- gear ring
- engine
- gear assembly
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Abstract
The invention discloses an engine helical tooth vulcanization shock absorption gear assembly which comprises an outer gear ring and an inner gear ring, wherein the inner gear ring is connected with the outer gear ring through a rubber ring, a plurality of helical tooth heads are arranged on the outer side wall of the outer gear ring, a bending section extending along the radial direction is arranged on the contour of the rubber ring, the inner gear ring is provided with an outer contour matched with the bending section, and the outer gear ring is provided with an inner contour matched with the bending section. Because the rubber ring is provided with the bending section extending along the radial direction, and the outer gear ring is provided with the inner contour matched with the bending section, the damping gear assembly can bear radial load and axial load, and is particularly suitable for being used on a crankshaft of an automobile engine.
Description
Technical Field
The invention relates to a damping gear, in particular to an engine helical tooth vulcanization damping gear assembly.
Background
At present, the vulcanized damping gear is more and more widely applied to an automobile engine, and the vulcanized rubber and metal are firmly fused, so that the vulcanized damping gear has the characteristics of damping, shock absorption, reduction of torsional rigidity of a connecting part of an engine crankshaft and a transmission system, reduction of torsional vibration natural frequency of the transmission system and the like. Referring to fig. 1, an outer ring of a current vulcanized damping gear assembly is a spur gear 10, an outer ring 10 and an inner ring 20 of the damping gear assembly are both powder metallurgy metal parts, a middle vulcanized rubber 30 is in a linear annular shape, the outer ring 10 can only be designed into a spur gear, and the damping gear rubber cannot bear axial force.
Disclosure of Invention
The invention mainly solves the technical problems in the prior art, and provides an engine helical tooth vulcanization damping gear assembly.
The technical problem of the invention is mainly solved by the following technical scheme:
an engine helical tooth vulcanization shock absorption gear assembly is characterized by comprising an outer gear ring and an inner gear ring, wherein the inner gear ring is connected with the outer gear ring through a rubber ring,
the outer side wall of the outer gear ring is provided with a plurality of skewed tooth heads,
the contour of the rubber ring is provided with a bending section extending along the radial direction, the inner gear ring is provided with an outer contour matched with the bending section, and the outer gear ring is provided with an inner contour matched with the bending section.
As a preferred embodiment of the present invention,
the bending section is concave.
As a preferred embodiment of the present invention,
the bending section is pyramid-shaped.
As a preferred embodiment of the present invention,
the bending section is C-shaped.
As a preferred embodiment of the present invention,
the rubber ring is made of vulcanized rubber.
An engine helical tooth vulcanization shock absorption gear assembly is characterized by comprising an outer gear ring, a pair of inner gear rings which are oppositely arranged are arranged inside the outer gear ring, the inner gear rings and the outer gear ring are connected through a rubber ring,
the outer side wall of the outer gear ring is provided with a plurality of skewed tooth heads,
the contour of the rubber ring is provided with a bending section extending along the radial direction, the inner gear ring is provided with an outer contour matched with the bending section, and the outer gear ring is provided with an inner contour matched with the bending section.
As a preferred embodiment of the present invention,
the bending section is concave.
As a preferred embodiment of the present invention,
the bending section is pyramid-shaped.
As a preferred embodiment of the present invention,
the bending section is C-shaped.
As a preferred embodiment of the present invention,
the rubber ring is made of vulcanized rubber.
The engine helical tooth vulcanization shock absorption gear assembly has the following advantages: because the rubber ring is provided with the bending section extending along the radial direction, and the outer gear ring is provided with the inner contour matched with the bending section, the damping gear assembly can bear radial load and axial load, and is particularly suitable for being used on a crankshaft of an automobile engine.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is an exploded perspective view of a conventional damper gear;
FIG. 2 is an exploded perspective view of an engine helical tooth vulcanized damper gear assembly of the present invention;
FIG. 3 is a schematic perspective view of the damper gear assembly of FIG. 2;
FIG. 4 is an exploded perspective view of a helical vulcanized damper gear assembly of an engine according to a second embodiment of the present invention;
FIG. 5 is a perspective view of the damper gear assembly of FIG. 4;
FIG. 6 is an exploded perspective view of a helical vulcanized damper gear assembly of an engine according to a third embodiment of the present invention;
fig. 7 is a perspective view of the damper gear assembly of fig. 6.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention will be more clearly and clearly defined.
As shown in fig. 2 and 3, the helical vulcanization damper gear assembly of the engine comprises an outer gear ring 1 and an inner gear ring 2, wherein the inner gear ring 2 is connected with the outer gear ring 1 through a rubber ring 3.
The outer side wall of the outer gear ring 1 is provided with a plurality of helical tooth heads 11, and the helical angle of the helical tooth heads 11 is 10-15 degrees.
The rubber ring 3 is provided with a bending section extending along the radial direction on the outline, the inner gear ring 2 is provided with an outer outline corresponding to the bending section, and the outer gear ring 1 is provided with an inner outline corresponding to the bending section. Specifically, as shown in fig. 3, the bending section has a pyramidal shape, and correspondingly, the outer contour of the inner gear ring 2 has a pyramidal shape, and the inner contour of the outer gear ring 1 has a pyramidal shape.
The outer gear ring 1 and the inner gear ring 2 are formed by forging or powder metallurgy, and the rubber ring 3 is formed by a vulcanization mold.
As shown in fig. 4 and 5, a damper gear assembly according to a second embodiment of the present invention is provided. The helical gear vulcanization damping gear assembly of the engine comprises an outer gear ring 1A, an inner gear ring 2A and a rubber ring 3A.
Different from the first embodiment, the bent section of the rubber ring 3A is "C" shaped, and correspondingly, the outer contour of the inner gear ring 2A is also "C" shaped, and the inner contour of the outer gear ring 1A is also "C" shaped.
As shown in fig. 6 and 7, a damper gear assembly according to a third embodiment of the present invention is provided. The helical gear vulcanization damping gear assembly of the engine comprises an outer gear ring 1B, a pair of inner gear rings 2B and a rubber ring 3B, wherein the inner gear rings 2B are oppositely arranged inside the outer gear ring 1B. The pair of ring gears 2B functions similarly to the ring gear 2A in the previous embodiment, and the bending section of the rubber ring 3B is concave, and correspondingly, the outer contour of the ring gear 2B is adapted to the concave section and is half of the concave section. The inner contour of the outer ring gear 1B is in a shape of a letter "convex".
In this embodiment, the helical angle of the helical tooth head 11B of the outer ring gear 1B is 30 °.
Obviously, in embodiment 1 and embodiment 2, the ring gear may also be two separate parts, or even three separate parts.
In addition, the shape of the bending segment is not limited to pyramid shape, "C" shape and "concave" shape, and may be "W" shape, etc., as long as the bending segment has an extending structure in the radial direction.
Because the rubber ring 3 is provided with a bending section extending along the radial direction, and the outer gear ring 1 is provided with an inner profile adapting to the bending section, the damping gear assembly can bear radial load and axial load, and is particularly suitable for being used on a crankshaft of an automobile engine.
Without being limited thereto, any changes or substitutions that are not thought of through the inventive work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (10)
1. An engine helical tooth vulcanization shock absorption gear assembly is characterized by comprising an outer gear ring (1) and an inner gear ring (2), wherein the inner gear ring (2) is connected with the outer gear ring (1) through a rubber ring (3),
the outer side wall of the outer gear ring (1) is provided with a plurality of oblique tooth heads (11),
the profile of the rubber ring (3) is provided with a bending section extending along the radial direction, the inner gear ring (2) is provided with an outer profile adapted to the bending section, and the outer gear ring (1) is provided with an inner profile adapted to the bending section.
2. The engine skewed tooth vulcanized damper gear assembly of claim 1,
the bending section is concave.
3. The engine skewed tooth vulcanized damper gear assembly of claim 1,
the bending section is pyramid-shaped.
4. The engine skewed tooth vulcanized damper gear assembly of claim 1,
the bending section is C-shaped.
5. The engine skewed tooth vulcanized damper gear assembly of claim 1,
the rubber ring (3) is made of vulcanized rubber.
6. An engine helical tooth vulcanization damping gear assembly is characterized by comprising an outer gear ring (1), a pair of inner gear rings (2) which are oppositely arranged are arranged inside the outer gear ring (1), the inner gear rings (2) and the outer gear ring (1) are connected through a rubber ring (3),
the outer side wall of the outer gear ring (1) is provided with a plurality of oblique tooth heads (11),
the profile of the rubber ring (3) is provided with a bending section extending along the radial direction, the inner gear ring (2) is provided with an outer profile adapted to the bending section, and the outer gear ring (1) is provided with an inner profile adapted to the bending section.
7. The engine skewed tooth vulcanized damper gear assembly of claim 1,
the bending section is concave.
8. The engine skewed tooth vulcanized damper gear assembly of claim 1,
the bending section is pyramid-shaped.
9. The engine skewed tooth vulcanized damper gear assembly of claim 1,
the bending section is C-shaped.
10. The engine skewed tooth vulcanized damper gear assembly of claim 6,
the rubber ring (3) is made of vulcanized rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211451155.8A CN115750729A (en) | 2022-11-18 | 2022-11-18 | Engine helical tooth vulcanization damper gear assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211451155.8A CN115750729A (en) | 2022-11-18 | 2022-11-18 | Engine helical tooth vulcanization damper gear assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115750729A true CN115750729A (en) | 2023-03-07 |
Family
ID=85333007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211451155.8A Pending CN115750729A (en) | 2022-11-18 | 2022-11-18 | Engine helical tooth vulcanization damper gear assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115750729A (en) |
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2022
- 2022-11-18 CN CN202211451155.8A patent/CN115750729A/en active Pending
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