CN201723646U - Novel elementary substance bimodule crankshaft torsional vibration damper - Google Patents
Novel elementary substance bimodule crankshaft torsional vibration damper Download PDFInfo
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- CN201723646U CN201723646U CN2010202600144U CN201020260014U CN201723646U CN 201723646 U CN201723646 U CN 201723646U CN 2010202600144 U CN2010202600144 U CN 2010202600144U CN 201020260014 U CN201020260014 U CN 201020260014U CN 201723646 U CN201723646 U CN 201723646U
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- vibration damper
- crankshaft
- wheel hub
- bimodulus
- simple substance
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Abstract
The utility model relates to a novel elementary substance bimodule crankshaft torsional vibration damper, which comprises an inertial ring, an elastic body and a hub; the inertial ring is provided with a gear ring connected with an accessory system at the front end of the crankshaft through a wedged belt; the elastic body is annular and is connected with the inertial ring and the hub; and a key slot is formed on the hub and is connected with the crankshaft through the key slot and a bolt. The torsional vibration damper can simultaneously solve the problems of the torsion and the bending vibration of the crankshaft, and lower the bending vibration of an engine with the longer crankshaft to achieve better effect.
Description
Technical field
The utility model relates to automobile engine crankshaft vibration damping equipment field, particularly relates to a kind of light-weighted simple substance amount bimodulus crankshaft tortional vibration damper device.
Background technique
Crankshaft tortional vibration damper is widely used in field of internal combustion engine to reduce the torsional vibration of bent axle.The torsional vibration amplitude is greatly to a certain degree then causing the fracture of bent axle and link thereof and produce fatigue ruption as if can not get controlling.Torsional vibration damper can lower vibration amplitude and the damping by vibration damper is converted into thermal dissipation with vibrational energy.Because the dissipation of vibrational energy, strength of crankshaft require and can appropriateness reduce, and then to alleviate axle be weight.Torsional vibration damper can reduce the vibration of engine accessory system simultaneously.Usually Vehicular engine accessory system connects driving wheel and each follower by many contracts band.Thereby each follower obtains enough energy driving annexes such as fan, boost pump, air pump, air condition compressor and generator etc. from the rotation of belt.And the running of drive belt generally is the belt pulley that is connected with the engine crankshaft front end.For reducing the vibrational energy that bent axle is delivered to accessory system, belt pulley need serve as the effect of torsional vibration damper, to reduce the vibration amplitude that causes owing to the engine crankshaft twist vibration.
Modal crankshaft tortional vibration damper structural type is that wheel hub one side is connected with crankshaft front end firmly by bolt, and gear ring that is connected with belt and wheel hub are formed the one-level torsional vibration damper by an elastomer.Because the crankshaft tortional vibration damper wheel hub is connected firmly with crankshaft front end, the torsional vibration meeting that engine crankshaft produces in rotary course is passed to torsional vibration damper, and debugs out the torsional vibration that rational torsional vibration damper natural frequency and damping can reduce bent axle greatly by the elastomer between wheel hub and inertial mass.
Engine crankshaft produces many vibration peak in rotary course, wherein torsional vibration and flexure vibrations are two kinds of modal vibration modes of being paid close attention to.Torsional vibration periodically produces around the crankshaft center line direction, the then similar simple cantilever deflection of beam mode of deflection of crankshaft vibration.The node of bent axle often exists in the crankcase.Aforementioned common one-level crankshaft tortional vibration damper often can not reduce the so complicated vibration of bent axle, and effectiveness in vibration suppression is undesirable.
For reducing the torsional vibration of engine crankshaft, people have carried out long-term exploration, have proposed multiple improving one's methods.For example Chinese patent literature discloses a kind of automobile engine crankshaft twist vibration damper device (patent No.: CN1991196A), this damper means is made up of wheel hub, rubber ring and inertial mass, wheel hub is fixed on crankshaft front end, the wheel hub outer ring is stained with rubber ring, and is provided with an energy storage device between wheel hub and the gear ring.Said method can improve the torsional vibration characteristic of engine crankshaft to a certain extent, reduces the torsional vibration of bent axle.But because this device is the one-level torsional vibration damper, the vibration damper natural frequency is single, to encouraging complicated engine crankshaft twist vibration then slightly inadequate.People design the bimodal crankshaft tortional vibration damper device of two quality as shown in Figure 1 for this reason, form the one-level torsional vibration damper by first inertia rings 1, first elastomer 2 and first wheel 3, second inertia rings 9, second elastomer 10 and second wheel hub 11 are formed the crooked vibration damper of another grade.But this design material is more, complex process, and cost is higher, has reduced its dissemination to a certain extent.Therefore being necessary to reproduce has on the technology basis, adopts simpler structure to reduce crankshaft torsion and flexure vibrations.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of novel simple substance amount bimodulus crankshaft tortional vibration damper device, to solve the problem of crankshaft torsion and flexure vibrations simultaneously.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of novel simple substance amount bimodulus crankshaft tortional vibration damper device is provided, comprises inertia rings, elastomer and wheel hub, described inertia rings is provided with gear ring; Described gear ring links to each other with the crankshaft front end accessory system by the wedge shape belt; Described elastomer is a ring, and links to each other with wheel hub with described inertia rings; Described wheel hub is provided with keyway, and links to each other with described bent axle with bolt by keyway.
The inertia rings of described novel simple substance amount bimodulus crankshaft tortional vibration damper device is provided with the dynamic balancing hole, and is made by cast iron or panel beating material.
The elastomeric cross section of described novel simple substance amount bimodulus crankshaft tortional vibration damper device is toward the shape of indent or past evagination, and is made by natural rubber or synthetic rubber.
The wheel hub of described novel simple substance amount bimodulus crankshaft tortional vibration damper device is provided with auxiliary hole, and is made by high strength Reinforced Nylon glass.
The elastomer of described novel simple substance amount bimodulus crankshaft tortional vibration damper device is connected with wheel hub with described inertia rings by plunging.
Beneficial effect
Owing to adopted above-mentioned technological scheme, the utility model compared with prior art has following advantage and good effect: 1) reduce damper hub weight and inertia, reduce engine power consumption; 2) adopt the highstrenghtpiston of lightweight to make damper hub and help improving the bent axle natural frequency, the resonant frequency of engine crankshaft is moved to beyond the common rotating speed; 3) because parts are less, reduce complexity, increased the reliability of part; 4) because compact structure provides exceptional space and encapsulation flexibility; 5) weight reduces more than 20%, saves cost 40%, reduces inertia, and fuel saving, improvement and the acceleration energy use; 6) vibration damper can satisfy reversing and the flexure vibrations requirement of client's proposition fully; The moment of torsion frequency remained unchanged when 7) corner frequency changed, the performance that is consistent when making flexible use motor; 8) eliminate the interaction of other vibration dampers, reduced the adjusting difficulty, shortened the development time.
Description of drawings
Fig. 1 is two quality bimodulus in the prior art (crooked with reverse) crankshaft tortional vibration damper sectional structure schematic representation;
Fig. 2 is a simple substance amount bimodulus crankshaft tortional vibration damper schematic representation of the present utility model;
Fig. 3 is the graph of a relation between elastomer cross section curvature and vibration damper torsional frequency and the corner frequency.
Embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiments only to be used to the utility model is described and be not used in the restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Mode of execution of the present utility model relates to a kind of novel simple substance amount bimodulus crankshaft tortional vibration damper device, as shown in Figure 2, inertia rings 1 by the band gear ring, ring elastomer 2 and wheel hub 3 are formed, inertia rings 1 gear ring links to each other with the crankshaft front end accessory system by the wedge shape belt, wheel hub 3 is provided with keyway 7, and is connected with bent axle 8 by keyway 7, bolt 5.Inertia rings 1 is provided with dynamic balancing hole 6, and is made by cast iron or panel beating material.Elastomer 2 is made by natural rubber or synthetic rubber, elastomer 2 cross sections can be set to toward indent or toward the shape of evagination regulating the crankshaft tortional vibration damper natural frequency, the cross section curvature by reasonable debugging ring elastomer 2 can effectively reduce reversing and the flexure vibrations amplitude of bent axle 8.Wheel hub 3 is provided with auxiliary hole 4, and is made by high strength Reinforced Nylon glass, reduces the inertia of wheel hub 3 greatly.Elastomer 2 is connected with wheel hub 3 with inertia rings 1 by plunging.
The utility model can be continued to use the manufacturing process of the crankshaft tortional vibration damper of single mode, and also not high to the input of equipment, vibration damper torsional frequency and corner frequency that the cross section curvature by reasonable debugging elastomer 2 can obtain to expect.As shown in Figure 3, vibration damper torsional frequency of the present utility model and corner frequency do not influence each other substantially, be very easy to debugging, for certain thickness elastomer, the torsional natural frequency of vibration damper is constant substantially, and the corner frequency of vibration damper is big and raise along with the change of elastomeric curvature, and the utility model is especially to reducing the flexure vibrations of long motor of bent axle, and its effect is better.
Claims (5)
1. a novel simple substance amount bimodulus crankshaft tortional vibration damper device comprises inertia rings (1), elastomer (2) and wheel hub (3), it is characterized in that described inertia rings (1) is provided with gear ring; Described gear ring links to each other with bent axle (8) frontal attachments system by the wedge shape belt; Described elastomer (2) is a ring, and links to each other with wheel hub (3) with described inertia rings (1); Described wheel hub (3) is provided with keyway (7), and links to each other with described bent axle (8) with bolt (5) by keyway (7).
2. novel simple substance amount bimodulus crankshaft tortional vibration damper device according to claim 1 is characterized in that described inertia rings (1) is provided with dynamic balancing hole (6), and is made by cast iron or panel beating material.
3. novel simple substance amount bimodulus crankshaft tortional vibration damper device according to claim 1 is characterized in that, the cross section of described elastomer (2) is toward the shape of indent or past evagination, and is made by natural rubber or synthetic rubber.
4. novel simple substance amount bimodulus crankshaft tortional vibration damper device according to claim 1 is characterized in that described wheel hub (3) is provided with auxiliary hole (4), and is made by high strength Reinforced Nylon glass.
5. novel simple substance amount bimodulus crankshaft tortional vibration damper device according to claim 1 is characterized in that described elastomer (2) is connected with wheel hub (3) with described inertia rings (1) by plunging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202600144U CN201723646U (en) | 2010-07-15 | 2010-07-15 | Novel elementary substance bimodule crankshaft torsional vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202600144U CN201723646U (en) | 2010-07-15 | 2010-07-15 | Novel elementary substance bimodule crankshaft torsional vibration damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201723646U true CN201723646U (en) | 2011-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202600144U Expired - Fee Related CN201723646U (en) | 2010-07-15 | 2010-07-15 | Novel elementary substance bimodule crankshaft torsional vibration damper |
Country Status (1)
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| CN (1) | CN201723646U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267080A (en) * | 2013-05-27 | 2013-08-28 | 奇瑞汽车股份有限公司 | Engine crankshaft composite shock absorber |
| CN106574688A (en) * | 2014-08-01 | 2017-04-19 | 戴科知识产权控股有限责任公司 | A two-part hub for a torsional vibration damper and method of making same |
| CN107795635A (en) * | 2016-09-06 | 2018-03-13 | 福特环球技术公司 | Torsion vibration absorber and engine pack |
-
2010
- 2010-07-15 CN CN2010202600144U patent/CN201723646U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267080A (en) * | 2013-05-27 | 2013-08-28 | 奇瑞汽车股份有限公司 | Engine crankshaft composite shock absorber |
| CN106574688A (en) * | 2014-08-01 | 2017-04-19 | 戴科知识产权控股有限责任公司 | A two-part hub for a torsional vibration damper and method of making same |
| CN106574688B (en) * | 2014-08-01 | 2019-11-12 | 戴科知识产权控股有限责任公司 | Two hubs and its manufacturing method for torsional vibration damper |
| CN107795635A (en) * | 2016-09-06 | 2018-03-13 | 福特环球技术公司 | Torsion vibration absorber and engine pack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NINGBO TUOPU BRAKING SYSTEMS CO., LTD. Free format text: FORMER OWNER: NINGBO TUOPU AUTOMOBILE SPECIAL RUBBER CO., LTD. Effective date: 20110509 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 315800 NO. 1, LONGTANSHAN ROAD, BEILUN DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE TO: 315806 NO. 1, LONGTANSHAN ROAD, DAGAN, BEILUN DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110509 Address after: 315806 Zhejiang province Ningbo city Beilun District Daqi Longtan Road No. 1 Patentee after: Ningbo Tuopu Steering System Co., Ltd. Address before: 315800 No. 1 Longtan Road, Beilun District, Zhejiang, Ningbo Patentee before: Ningbo Tuopu Auto Special Rubber Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: NINGBO TUOPU GROUP CO., LTD. Free format text: FORMER NAME: NINGBO TUOPU BRAKING SYSTEMS CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 315800 No. 215 West Mount Huangshan Road, Ningbo, Zhejiang, Beilun Patentee after: Ningbo Tuopu Group Co., Ltd. Address before: 315806 Zhejiang province Ningbo city Beilun District Daqi Longtan Road No. 1 Patentee before: Ningbo Tuopu Steering System Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20140715 |
|
| EXPY | Termination of patent right or utility model |