CN216112032U - Engine lightweight vibration damping noise reduction gear - Google Patents
Engine lightweight vibration damping noise reduction gear Download PDFInfo
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- CN216112032U CN216112032U CN202122042430.8U CN202122042430U CN216112032U CN 216112032 U CN216112032 U CN 216112032U CN 202122042430 U CN202122042430 U CN 202122042430U CN 216112032 U CN216112032 U CN 216112032U
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- gear
- engine
- noise reduction
- vibration
- annular groove
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- 238000013016 damping Methods 0.000 title claims description 5
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000013040 rubber vulcanization Methods 0.000 description 1
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Abstract
The utility model discloses a vibration and noise reduction gear with a light engine weight, and relates to the technical field of engines. The structure is applied to a transmission gear at the rear end of an engine and comprises a gear outer ring and a gear inner ring, wherein the gear inner ring is sleeved in the gear outer ring, an elastic piece is arranged between the gear inner ring and the gear outer ring, an annular groove is formed between the elastic piece and gear teeth of the gear outer ring, lightening holes are formed in the annular groove along the circumferential direction, a mounting hole is formed in the gear inner ring, and a key groove for positioning is formed in the inner wall of the mounting hole. The utility model aims to solve the problems that the existing gear is heavy, no buffer exists in meshing between gears, the matching impact is large, the generated vibration is large, the noise is large and the like.
Description
Technical Field
The utility model relates to the technical field of engines, in particular to a vibration and noise reduction gear with a light engine weight.
Background
Gears are one of the most widely used power transmission parts in industry, and play an important role in the field of mechanical transmission. When gears are engaged, there is a certain clearance, called backlash, between the teeth of the two gears, which is to reduce the loss of mechanical efficiency during the operation of the gears. However, due to the existence of backlash, the tooth surfaces contacted by the two gears can collide during the operation of the gears, and generate larger noise.
In the current engine design process, its gear part adopts monoblock metal direct machining tooth and mounting hole, keyway etc. basically, and preparation simple process, the rigidity of gear like this is higher, but during operation, meshing does not have the buffering between the gear, and the cooperation is strikeed great, and gear weight is also great simultaneously. With the development of industry and the improvement of living standard, people put higher demands on quiet noise reduction of machinery. Therefore, it is very important to design a vibration and noise reduction gear which can effectively reduce noise and vibration of the gear and improve the service life and transmission efficiency.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model provides a vibration-reducing and noise-reducing gear with a light engine, and aims to solve the problems that the existing gear is heavy in weight, no buffer exists in meshing between gears, the matching impact is large, the generated vibration is large, the noise is large, and the like.
In order to achieve the purpose, the technical scheme of the utility model is as follows:
the utility model provides a gear of making an uproar falls in damping of engine lightweight, is applied to engine rear end drive gear, includes gear outer lane, gear inner circle, the gear inner circle cover is established in the gear outer lane, be provided with the elastic component between gear inner circle and the gear outer lane, be provided with the annular groove between the teeth of a cogwheel of elastic component and gear outer lane, be provided with lightening hole along the circumferencial direction in the annular groove, set up the mounting hole in the gear inner circle, be provided with the keyway that is used for the location on the mounting hole inner wall.
Preferably, the lightening holes are more than six, and the lightening holes are uniformly distributed along the circumference of the annular groove. This arrangement allows the weight of the gear to be reduced without unduly impairing the rigidity of the gear.
Preferably, the lightening holes are oval. Such an arrangement allows for as little weight as possible without compromising the structural rigidity of the gear.
Preferably, the elastic member is made of rubber. This can alleviate the impact during the gear transmission.
The utility model has the beneficial effects that:
the vibration-damping noise-reducing gear with the light weight for the engine can relieve the impact in the gear transmission process, improve the impact friction noise and vibration of the gear operation, reduce the weight and ensure the rigidity and the strength of the gear.
Drawings
FIG. 1 is a front view of a vibration and noise reduction gear for reducing the weight of an engine according to an embodiment of the present invention;
FIG. 2 is a sectional view taken along line B-B of FIG. 1;
in the figure, 1-gear outer ring, 2-gear inner ring, 3-elastic piece, 4-annular groove, 5-lightening hole, 6-mounting hole, 7-key slot and 8-gear outer ring gear tooth.
Detailed Description
In order to explain the technical content, the achieved objects and the effects of the present invention in detail, the following description is made in conjunction with the embodiments and the accompanying drawings.
Examples
As shown in fig. 1 and 2, the utility model provides a vibration and noise reduction gear with light weight for an engine, which is applied to a transmission gear at the rear end of the engine and comprises a gear outer ring 1 and a gear inner ring 2, wherein the gear inner ring 2 is sleeved in the gear outer ring 1, an elastic piece 3 is arranged between the gear inner ring 2 and the gear outer ring 1, an annular groove 4 is arranged between the elastic piece 3 and a gear tooth 8 of the gear outer ring, lightening holes 5 are arranged in the annular groove 4 along the circumferential direction, a mounting hole 6 is arranged in the gear inner ring 2, and a key slot 7 for positioning is arranged on the inner wall of the mounting hole 6.
According to the scheme, the annular grooves 4 are uniformly distributed on the outer ring 1 of the gear, and the lightening holes 5 form a plurality of spoke type structures; the annular groove 4 can remove part of gear materials to achieve the purpose of reducing weight; set up elastic component 3 between gear outer lane 1 and the gear inner circle 2, elastic component 3 itself has elasticity, can slow down the impact of gear drive in-process, and the spoke structure is compared with the structure of whole metal simultaneously, can ensure that the gear reaches the equilibrium between rigidity, intensity and the weight of gear. Therefore, the spoke with reduced rigidity is provided with the elastic piece 3 between the gear outer ring 1 and the gear inner ring 2, when the rotation speed or the load of the gear changes, the impact between the gears can be effectively absorbed by the spoke and the elastic piece 3, and the impact vibration and the friction noise of the gear operation can be improved. And 4 structures of the annular groove can be realized through casting and forging, the production process is slightly changed compared with the integral gear structure, but the influence on the gear production is small, the blank production is realized through a die, the product consistency is high, and the production cost is low.
Furthermore, the weight-reducing holes 5 are more than six, and the weight-reducing holes 5 are uniformly distributed along the circumference of the annular groove 4. This arrangement allows the weight of the gear to be reduced without unduly impairing the rigidity of the gear.
Further, the lightening holes 5 are oval. Such an arrangement allows for as little weight as possible without compromising the structural rigidity of the gear.
Further, the elastic member 3 is made of rubber. The gear outer ring 1 and the gear inner ring 2 are combined together through rubber vulcanization of the elastic piece 3, so that impact in the gear transmission process can be relieved.
It will be appreciated that in other embodiments, the resilient member 3 may also be disposed within the mounting hole 6.
Although the utility model has been described in detail above with reference to specific embodiments, it will be apparent to one skilled in the art that modifications or improvements may be made based on the utility model. Accordingly, such modifications and improvements are intended to be within the scope of the utility model as claimed.
Claims (4)
1. The utility model provides a gear of making an uproar falls in damping of engine lightweight, is applied to engine rear end drive gear, its characterized in that includes gear outer lane, gear inner circle, the gear inner circle cover is established in the gear outer lane, be provided with the elastic component between gear inner circle and the gear outer lane, be provided with annular groove between the teeth of a cogwheel of elastic component and gear outer lane, be provided with lightening hole along the circumferencial direction in the annular groove, set up the mounting hole in the gear inner circle, be provided with the keyway that is used for the location on the mounting hole inner wall.
2. The vibration and noise reduction gear for engine lightening as claimed in claim 1, wherein the lightening holes are provided with more than six, and the lightening holes are uniformly arranged along the circumference of the annular groove.
3. The vibration and noise reduction gear for engine lightening as claimed in claim 1, wherein said lightening holes are oval.
4. The vibration and noise reduction gear for engine lightening as claimed in claim 1, wherein said elastic member is made of rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122042430.8U CN216112032U (en) | 2021-08-27 | 2021-08-27 | Engine lightweight vibration damping noise reduction gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122042430.8U CN216112032U (en) | 2021-08-27 | 2021-08-27 | Engine lightweight vibration damping noise reduction gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216112032U true CN216112032U (en) | 2022-03-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122042430.8U Active CN216112032U (en) | 2021-08-27 | 2021-08-27 | Engine lightweight vibration damping noise reduction gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216112032U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113653785A (en) * | 2021-08-27 | 2021-11-16 | 广西玉柴机器股份有限公司 | Engine lightweight vibration damping noise reduction gear |
-
2021
- 2021-08-27 CN CN202122042430.8U patent/CN216112032U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113653785A (en) * | 2021-08-27 | 2021-11-16 | 广西玉柴机器股份有限公司 | Engine lightweight vibration damping noise reduction gear |
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