CN202926951U - Torsion vibration damper used for automobile engine crankshaft - Google Patents
Torsion vibration damper used for automobile engine crankshaft Download PDFInfo
- Publication number
- CN202926951U CN202926951U CN 201220460669 CN201220460669U CN202926951U CN 202926951 U CN202926951 U CN 202926951U CN 201220460669 CN201220460669 CN 201220460669 CN 201220460669 U CN201220460669 U CN 201220460669U CN 202926951 U CN202926951 U CN 202926951U
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- hub
- damping device
- absorbing
- automobile engine
- engine crankshaft
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Abstract
The utility model relates to the technical field of vibration damping systems of an automobile engine crankshaft, in particular to a torsion vibration damper used for the automobile engine crankshaft. The torsion vibration damper used for the automobile engine crankshaft comprises an outer hub, an inner hub and a middle hub. The inner hub is arranged on the inner side of the outer hub, the middle hub is arranged between the outer hub and the inner hub, and a vibration damping device is arranged between the outer hub and the inner hub. The vibration damping device comprises a first-level vibration damping device used for absorbing high-frequency vibration and a second-level vibration damping device used for absorbing low-frequency vibration. The first-level vibration damping device is arranged between the inner hub and the middle hub, and the second-level vibration damping device is arranged between the middle hub and the outer hub. Compared with the prior art, the effects of absorbing the high-frequency vibration and the low-frequency vibration are achieved at the same time, and the torsion vibration damper used for the automobile engine crankshaft has the advantages of being good in vibration damping effect, capable of reducing noise, simple in structure, convenient to manufacture and low in cost.
Description
Technical field
The utility model relates to the shock mitigation system technical field of automobile engine crankshaft, is specifically related to a kind of automobile engine crankshaft torsion vibration absorber.
Background technique
In the middle of prior art, in the working procedure of motor car engine, when motor reaches a certain rotating speed, because running is inhomogeneous, along with the mechanical motion of piston, the vibration frequency of motor self and noise are strengthened, not only can bring noise pollution, and go down for a long time, will greatly reduce the working life of bent axle and the performance of motor.
At present, the crankshaft torsion vibration absorber that uses on automobile generally adopts single-stage rubber shock-absorbing structure, in use, can greatly reduce dither, thereby extends bent axle working life, improve the travelling comfort of driving; But the vibration damper of said structure is not effectively controlled the low-frequency vibration that is caused by belt drive system and the noise that causes thus.
The model utility content
For the deficiency of automobile engine crankshaft in prior art with the torsion vibration absorber existence, the purpose of this utility model is to provide a kind of two-stage damping structure, can effectively absorb the automobile engine crankshaft torsion vibration absorber of the noise of low-frequency vibration and reduction low-frequency vibration generation.
for achieving the above object, the utility model provides following technological scheme: a kind of automobile engine crankshaft torsion vibration absorber, include outer hub, interior hub and middle hub, it is inboard that described interior hub is arranged in outer hub, in the middle of described, hub is between outer hub and interior hub, be provided with damping device between described outer hub and interior hub, it is characterized in that: described damping device includes the first order damping device of absorbing high-frequency vibration and absorbs the second level damping device of low-frequency vibration, described first order damping device is located between interior hub and middle hub, second level damping device is arranged between middle hub and outer hub.
Described first order damping device is yielding rubber.
Described second level damping device is polyurethane sound-absorbing damping sponge.
Described polyurethane sound-absorbing damping sponge comprises the polyurethane sound-absorbing damping sponge body, is distributed with some air bubble types holes on the polyurethane sound-absorbing damping sponge body.
Described polyurethane sound-absorbing damping sponge body and pore adopt the Integratively foaming to form.
Hole on described polyurethane sound-absorbing damping sponge body is through hole, and through hole is cellular distribution setting.
Described outer hub is with the outer hub of the inertia of belt export structure.
The utility model compared with prior art has following advantage: adopt the two-stage damping device, increased the damping device of one-level different qualities, the low-frequency vibration of the belt drive system that produces in the time of can absorbing engine running; And second level damping device adopts the polyurethane sound-absorbing damping sponge of a fixed structure, further improves the effect of damping sound-absorbing; Simultaneously, this damping device can also effectively extend the working life of bent axle, have simple in structure, cost is low, long service life and the simple advantage of manufacturing.
Below in conjunction with accompanying drawing, the utility model is further described.
Description of drawings
Fig. 1 is the structural representation that the automobile engine crankshaft of the utility model specific embodiment is used torsion vibration absorber;
Fig. 2 is the structural representation of the second level damping device of the utility model specific embodiment.
Embodiment
Referring to accompanying drawing 1, accompanying drawing 2, the disclosed a kind of automobile engine crankshaft torsion vibration absorber of the utility model includes outer hub 3, interior hub 1 and middle hub 2; Described interior hub 1 is arranged in outer hub 3 inboards, described in the middle of hub 2 between outer hub 3 and interior hub 1.Be provided with damping device between described outer hub 3 and interior hub 1, described damping device includes the first order damping device of absorbing high-frequency vibration and absorbs the second level damping device of low-frequency vibration; Described first order damping device is located between interior hub 1 and middle hub 2, and second level damping device is arranged between middle hub 2 and outer hub 3.
Described first order damping device is yielding rubber 4, and this yielding rubber 4 can be vulcanized rubber and nitrile rubber; Certainly first order damping device also can adopt other vibration-absorptive materials to make, as spring, foam, sponge, cellulon etc.; The mounting type of setting-in in the first damping device adopts.
Described second level damping device is polyurethane sound-absorbing damping sponge 5; Described polyurethane sound-absorbing sponge 5 includes the polyurethane sound-absorbing sponge body 50 that Integratively foaming forms and is located at hole 51 on polyurethane sound-absorbing sponge body 50; Described hole 51 is the through hole setting, and each through hole adopts cellular distribution setting.Certainly second level damping device can also be made for also adopting other vibration-absorptive materials, as spring, foam, rubber, cellulon etc.Second level damping device adopts embedded mounting type.
Described interior hub 1 is mainly used to be connected with the bent axle of motor, supports for simultaneously when being used for transmission first order damping device, and the bent axle dither mainly is absorbed at first order damping device.Described outer hub 3 is the outer hub of inertia rings, mainly drive front end wheel train by poly Vbelt, comprise the random devices such as motor, power steering pump, air condition compressor, while, as the support of second level damping device, the low-frequency vibration of front end accessory gear belt was mainly absorbed by second level damping device together with middle hub 2.
Claims (4)
1. automobile engine crankshaft torsion vibration absorber, include outer hub, interior hub and middle hub, it is inboard that described interior hub is arranged in outer hub, in the middle of described, hub is between outer hub and interior hub, be provided with damping device between described outer hub and interior hub, it is characterized in that: described damping device includes the first order damping device of absorbing high-frequency vibration and absorbs the second level damping device of low-frequency vibration, described first order damping device is located between interior hub and middle hub, second level damping device is arranged between middle hub and outer hub, described first order damping device is yielding rubber, described outer hub is with the outer hub of the inertia of belt export structure, it is characterized in that: described second level damping device is polyurethane sound-absorbing damping sponge.
2. automobile engine crankshaft torsion vibration absorber according to claim 1, it is characterized in that: described polyurethane sound-absorbing damping sponge comprises the polyurethane sound-absorbing damping sponge body, is distributed with some air bubble types holes on the polyurethane sound-absorbing damping sponge body.
3. automobile engine crankshaft torsion vibration absorber according to claim 2 is characterized in that: described polyurethane sound-absorbing damping sponge body and pore adopt the Integratively foaming to form.
4. automobile engine crankshaft torsion vibration absorber according to claim 2, it is characterized in that: the hole on described polyurethane sound-absorbing damping sponge body is through hole, through hole is cellular distribution setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220460669 CN202926951U (en) | 2012-09-11 | 2012-09-11 | Torsion vibration damper used for automobile engine crankshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220460669 CN202926951U (en) | 2012-09-11 | 2012-09-11 | Torsion vibration damper used for automobile engine crankshaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202926951U true CN202926951U (en) | 2013-05-08 |
Family
ID=48216913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220460669 Expired - Fee Related CN202926951U (en) | 2012-09-11 | 2012-09-11 | Torsion vibration damper used for automobile engine crankshaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202926951U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104151856A (en) * | 2014-08-07 | 2014-11-19 | 镇江洋溢汽车部件有限公司 | Honeycomb sponge |
| CN107795635A (en) * | 2016-09-06 | 2018-03-13 | 福特环球技术公司 | Torsion vibration absorber and engine pack |
| CN108730407A (en) * | 2018-05-31 | 2018-11-02 | 重庆长安汽车股份有限公司 | A kind of damp type crankshaft tortional vibration damper assembly |
| CN110469610A (en) * | 2019-08-20 | 2019-11-19 | 柳州上汽汽车变速器有限公司柳东分公司 | A kind of crankshaft tortional vibration damper and crankshaft group |
-
2012
- 2012-09-11 CN CN 201220460669 patent/CN202926951U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104151856A (en) * | 2014-08-07 | 2014-11-19 | 镇江洋溢汽车部件有限公司 | Honeycomb sponge |
| CN107795635A (en) * | 2016-09-06 | 2018-03-13 | 福特环球技术公司 | Torsion vibration absorber and engine pack |
| CN108730407A (en) * | 2018-05-31 | 2018-11-02 | 重庆长安汽车股份有限公司 | A kind of damp type crankshaft tortional vibration damper assembly |
| CN110469610A (en) * | 2019-08-20 | 2019-11-19 | 柳州上汽汽车变速器有限公司柳东分公司 | A kind of crankshaft tortional vibration damper and crankshaft group |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20130911 |