CN101144517A - Crankshaft torsion vibration absorber for automobile engine - Google Patents
Crankshaft torsion vibration absorber for automobile engine Download PDFInfo
- Publication number
- CN101144517A CN101144517A CNA2007101308151A CN200710130815A CN101144517A CN 101144517 A CN101144517 A CN 101144517A CN A2007101308151 A CNA2007101308151 A CN A2007101308151A CN 200710130815 A CN200710130815 A CN 200710130815A CN 101144517 A CN101144517 A CN 101144517A
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- Prior art keywords
- hub
- outer hub
- damping device
- frequency vibration
- automobile engine
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000006096 absorbing agent Substances 0.000 title claims abstract description 17
- 229920001971 elastomer Polymers 0.000 claims abstract description 29
- 238000013016 damping Methods 0.000 claims description 25
- 239000010985 leather Substances 0.000 claims description 3
- 230000035939 shock Effects 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
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- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a crankshaft torsion shock absorber for a vehicle engine. The invention comprises an outer hub, an inner hub arranged at the inner side of the outer hub, and a middle hub arranged between the outer hub and the inner hub, and a multi-stage shock absorbing device is arranged between the outer hub and the inner hub; the multi-stage shock absorbing device comprises a first stage shock absorbing device absorbing high frequency vibration and a second stage shock absorbing device absorbing low frequency vibration; compared with the prior technology, the multi-stage shock absorbing device adopted on the crankshaft torsion shock absorber for the vehicle engine increases a single stage or double-stage shock absorbing rubber with different characteristics, to enable the invention to have the advantages that the low frequency vibration of the belt driving system when the engine runs can effectively be absorbed, simultaneously, the service life of the crankshaft can effectively be lengthened, the structure is simple, the cost is low, the service life is long, and the processing and the manufacture are easy.
Description
Technical field
The invention belongs to a kind of shock mitigation system technical field of starting motor-driven vehicle machine crankshaft, specifically, relate to a kind of crankshaft torsion vibration absorber for automobile engine.
Background technique
In the prior art, in the use of motor car engine, when motor reaches a certain rotating speed, because the running nonuniformity is accompanied by the mechanical motion of piston, the vibration frequency of motor self and noise are strengthened, go down for a long time, will influence the life-span of bent axle and the performance of motor greatly.
At present, the at present general single-stage rubber shock-absorbing structure that adopts of intermediate car crankshaft torsion vibration absorber shows from the practice of using effect, prolongs the bent axle life-span, improves ride comfort thereby can reduce dither greatly.But the vibration damper of this structure is powerless to low-frequency vibration that is caused by belt drive system and the noise that causes thus, can't effectively control above-mentioned low-frequency vibration and noise.
Summary of the invention
Technical problem to be solved by this invention is, in the technical field of the crankshaft torsion vibration absorber that motor car engine is used, adopt the crankshaft torsion vibration absorber of single-stage rubber shock-absorbing structure, the technical problem that can't effectively control the low-frequency vibration that causes by belt drive system and the noise that causes thus, and a kind of crankshaft torsion vibration absorber for automobile engine is provided.
The technological scheme that the present invention will provide is, a kind of crankshaft torsion vibration absorber for automobile engine, comprise outer hub, be arranged in the interior hub of described outer hub inboard and be arranged in middle hub between described outer hub and the interior hub, be provided with multistage damping device between described outer hub and the interior hub.
Described multistage damping device comprises 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 the first order yielding rubber of absorbing high-frequency vibration, and described first order yielding rubber is embedded to be arranged between described interior hub and the middle hub.
Described second level damping device is for absorbing the second level yielding rubber of low-frequency vibration, and described second level yielding rubber is embedded to be arranged between described middle hub and the outer hub.
Described outer hub is the outer hub of the inertia rings of belt leather band export structure.
Adopt technological scheme provided by the utility model, compared with prior art, on crankshaft torsion vibration absorber for automobile engine, adopt multistage damping device, increased the yielding rubber that one-level or two-stage have different qualities, the low-frequency vibration of the belt drive system that produces when making it effectively be absorbed in engine running, simultaneously, can also effectively prolong the working life of bent axle, simple in structure, advantages such as cost is low, long service life, easy manufacturing.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Wherein, 1 is interior hub; 2 is first order yielding rubber; 3 is middle hub; 4 is second level yielding rubber; 5 is outer hub.
Embodiment
A kind of crankshaft torsion vibration absorber for automobile engine as shown in Figure 1 comprises outer hub 5, is arranged in the interior hub 1 of described outer hub 5 inboards and is arranged in middle hub 3 between described outer hub 5 and the interior hub 1, is provided with multistage damping device between described outer hub 5 and the interior hub 1; Described multistage damping device comprises 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 the first order yielding rubber 2 of absorbing high-frequency vibration, described first order yielding rubber 2 embedded being arranged between described interior hub 1 and the middle hub 3; Described second level damping device is for absorbing the second level yielding rubber 4 of low-frequency vibration, described second level yielding rubber 4 embedded being arranged between described middle hub 3 and the outer hub 5; The outer hub 5 of the inertia rings that described outer hub 5 is a belt leather band export structure.
Other elastic materials that described first order yielding rubber 2 and second level yielding rubber 4 all can adopt the different vulcanized rubber of performance and nitrile rubber or have different damping damping characteristics.First yielding rubber 2 and second yielding rubber 4 adopt existing mounting type to be arranged between outer hub 5 and the interior hub 1, and the mounting type mode that adopts is embedded usually.
The outer hub 5 of described inertia rings, mainly drive the front end train by poly Vbelt, comprise random devices such as generator, power steering pump, air condition compressor, with the support of middle hub 3 as second level yielding rubber 4, the low-frequency vibration of frontal attachments train belt is mainly absorbed by second level yielding rubber 4 simultaneously.
In the prior art, single-stage rubber shock-absorbing structure is extensive use of on the market, thereby but can only reduce dither prolongs bent axle to the infringement of bent axle fatigue life.And problem to be solved by this invention is the noise that reduces the low-frequency vibration of the belt drive system produce and cause because of vibration when engine running.
To achieve these goals, the technical solution used in the present invention is on the existing product structure, increases one-level and has the second level rubber damping layer that has different qualities with first order rubber.
First damping device and second damping device can also have the other materials of damping effect, as spring, sponge, foam, cellulon or the like.
Compared with prior art, cost increases few after the employing technique scheme, and manufacture difficulty does not increase, and can obviously reduce the low-frequency vibration and the noise of motor head belt drive system.The second level of the present invention shock-proof crank system, simple in structure, easily manufactured.
In conjunction with the accompanying drawings the present invention has been carried out exemplary description above; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as adopted the method design of invention and the various improvement that technological scheme is carried out; or directly apply to other occasion without improvement, all within protection scope of the present invention.
Claims (5)
1. crankshaft torsion vibration absorber for automobile engine, comprise outer hub (5), be arranged in the inboard interior hub (1) of described outer hub (5) and be arranged in described outer hub (5) and interior hub (1) between middle hub (3), it is characterized in that, be provided with multistage damping device between described outer hub (5) and the interior hub (1).
2. a kind of crankshaft torsion vibration absorber for automobile engine as claimed in claim 1 is characterized in that, described multistage damping device comprises the first order damping device of absorbing high-frequency vibration and absorbs the second level damping device of low-frequency vibration.
3. a kind of crankshaft torsion vibration absorber for automobile engine as claimed in claim 2, it is characterized in that, described first order damping device is the first order yielding rubber (2) of absorbing high-frequency vibration, and described first order yielding rubber (2) is embedded to be arranged between described interior hub (1) and the middle hub (3).
4. a kind of crankshaft torsion vibration absorber for automobile engine as claimed in claim 2, it is characterized in that, described second level damping device is for absorbing the second level yielding rubber (4) of low-frequency vibration, and described second level yielding rubber (4) is embedded to be arranged between described middle hub (3) and the outer hub (5).
5. as the described a kind of crankshaft torsion vibration absorber for automobile engine of claim 1-4, it is characterized in that described outer hub (5) is the outer hub (5) of the inertia rings of belt leather band export structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101308151A CN101144517A (en) | 2007-08-10 | 2007-08-10 | Crankshaft torsion vibration absorber for automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101308151A CN101144517A (en) | 2007-08-10 | 2007-08-10 | Crankshaft torsion vibration absorber for automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101144517A true CN101144517A (en) | 2008-03-19 |
Family
ID=39207189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101308151A Pending CN101144517A (en) | 2007-08-10 | 2007-08-10 | Crankshaft torsion vibration absorber for automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101144517A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886685A (en) * | 2010-07-19 | 2010-11-17 | 奇瑞汽车股份有限公司 | Vibration damper assembly |
| CN103434353A (en) * | 2013-08-27 | 2013-12-11 | 长城汽车股份有限公司 | Wheel hub shock absorber for engine and engine with same |
-
2007
- 2007-08-10 CN CNA2007101308151A patent/CN101144517A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886685A (en) * | 2010-07-19 | 2010-11-17 | 奇瑞汽车股份有限公司 | Vibration damper assembly |
| CN103434353A (en) * | 2013-08-27 | 2013-12-11 | 长城汽车股份有限公司 | Wheel hub shock absorber for engine and engine with same |
| CN103434353B (en) * | 2013-08-27 | 2015-08-05 | 长城汽车股份有限公司 | For driving engine Wheel hub shock absorber and there is its driving engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20080319 |