CN201588919U - Belt pulley for damping vibration of crankshaft of engine - Google Patents
Belt pulley for damping vibration of crankshaft of engine Download PDFInfo
- Publication number
- CN201588919U CN201588919U CN2009202073410U CN200920207341U CN201588919U CN 201588919 U CN201588919 U CN 201588919U CN 2009202073410 U CN2009202073410 U CN 2009202073410U CN 200920207341 U CN200920207341 U CN 200920207341U CN 201588919 U CN201588919 U CN 201588919U
- Authority
- CN
- China
- Prior art keywords
- belt pulley
- rubber ring
- bent axle
- crankshaft
- wheel hub
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 238000013016 damping Methods 0.000 title abstract description 7
- 244000258271 Galium odoratum Species 0.000 claims description 4
- 235000008526 Galium odoratum Nutrition 0.000 claims description 4
- 238000004073 vulcanization Methods 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Pulleys (AREA)
Abstract
The utility model provides a belt pulley for damping vibration of a crankshaft of an engine, which consists of three parts of a belt pulley (1), a rubber ring (2) and a hub (3), wherein the hub (3) is connected with the front end of the crankshaft (5) through a front-end bolt (4); a semicircular key is designed at the centre hole position to ensure the belt pulley (1) and the crankshaft (5) to rotate together; and the belt pulley (1) is connected with the hub (3) through the rubber ring (2). In the utility model, the belt pulley (1) is connected with the hub (3) through the rubber ring (2), and the elastic damping characteristics of the rubber ring (2) are utilized to adjust the natural frequency of a shafting and to absorb the torsional vibration energy so as to damp the vibration of the crankshaft, thereby effectively improving the working reliability of the engine and the comfortableness and safety of the complete vehicle.
Description
Technical field
The utility model relates to a kind of bent axle damper pulley that is applied to motor car engine.
Background technique
Axle system in the motor car engine is a torsional oscillation elastic system, has certain natural frequency of vibration, during engine operation, because factors such as igniting interval and crankshaft rotating, the size and Orientation that acts on the power on the bent axle all is periodically variable, so bent axle can produce torsional vibration when work, when excited frequency becomes multiple to concern with the bent axle natural frequency of vibration, can cause the resonance of bent axle, cause the crankshaft torsional vibrations aggravation even damage reduction engine life and car load travelling comfort.
Now, what general motor adopted is the crank pulley of no rubber, and bent axle and belt pulley belong to and be rigidly connected, so its torsional oscillation that is delivered to front end also is maximized.Therefore be necessary crank pulley is optimized for the bent axle damper pulley with rubber structure, so just can reduce the torsional oscillation that axle system is delivered to front end by the damping function of rubber, thereby front end (pulley end) band transmission etc. is operated steadily, and moment of torsion output in rear end (flywheel end) is stable.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of bent axle damper pulley that can effectively reduce bent axle and motor torsional oscillation.
For achieving the above object, the solution that the utility model adopts is:
A kind of engine crankshaft damper pulley, it comprises belt pulley and wheel hub, and described belt pulley is enclosed within on the wheel hub, and described wheel hub is enclosed within crankshaft front end, is connected with bent axle by preceding terminal bolt, and cooperates with bent axle by woodruff key and to guarantee that itself and bent axle together rotate.Its improvement is: between described belt pulley and wheel hub rubber ring is set, rubber ring is enclosed within outside the wheel hub by the vulcanization hoop, and belt pulley then is enclosed within outside the rubber ring, is connected with wheel hub by rubber ring.
The utility model is provided with rubber ring at belt pulley and wheel hub between the two, because rubber ring has elastic damping, by the elasticity coefficient of suitable adjustment belt pulley inertial mass and rubber, can adjust the natural frequency that axle is.Simultaneously, during engine operation, bent axle damper pulley wheel hub connects and rotation with bent axle, because the belt pulley inertial mass lags behind wheel hub, thereby between produces relative movement, rubber layer is rubbed back and forth, and vibrational energy is absorbed by the interior frictional damping of rubber, thereby the torsional oscillation of bent axle is subdued.
Description of drawings
Fig. 1 is the structural representation of bent axle damper pulley.
Embodiment
Describe structure of the present utility model in detail below in conjunction with accompanying drawing:
As shown in Figure 1, this bent axle damper pulley is installed in the crankshaft front end (pulley end) of motor, and it is made up of wheel hub 3, belt pulley 1, rubber ring 2.Wheel hub 3 is enclosed within bent axle 5 front ends, is connected with bent axle 5 by preceding terminal bolt 4, and cooperates assurance itself and bent axle 5 together to rotate with bent axle 5 front ends by woodruff key 6.By the vulcanization hoop one deck rubber ring 2 being arranged outside the wheel hub 3, is belt pulley 1 outside the rubber ring 2.
When engine operation, because the variation constantly of pressure of explosion, torsional oscillations can take place in bent axle 5, with front end angular amplitude maximum, show as the leading of wheel hub 3 or lag behind the rotating speed of bent axle 5.In order to reduce torsional oscillation, design has the belt pulley 1 of certain rotary inertia.When bent axle quickens rotation, wheel hub 3 together rotates by the fixation and the bent axle 5 of preceding terminal bolt 4 with woodruff key 6, belt pulley 1 is owing to have relatively large inertial mass, and with the two rubber ring that is connected 2 are flexible bodies, the rotation of belt pulley 1 will lag behind wheel hub 3, thereby between generation relative movement, and rubber layer is rubbed repeatedly, vibrational energy is absorbed by the interior frictional damping of rubber ring 2, thereby the torsional oscillation of bent axle 5 is subdued.As a same reason, when bent axle 5 slowed down rotation, the rotating speed of belt pulley 1 will be ahead of wheel hub 3, also can produce relative movement by between, and rubber ring 2 absorbs energy, reduces bent axle 5 torsional oscillations.
Claims (1)
1. engine crankshaft damper pulley, it comprises belt pulley (1) and wheel hub (3), described belt pulley (1) is enclosed within on the wheel hub (3), described wheel hub (3) is enclosed within bent axle (5) front end, be connected with bent axle (5) by preceding terminal bolt (4), and at central hole location woodruff key be set and cooperate with bent axle (5) and guarantee that itself and bent axle (5) together rotate;
It is characterized in that: be provided with rubber ring (2) between described belt pulley (1) and wheel hub (3), rubber ring (2) vulcanization hoop is enclosed within outside the wheel hub (3), and belt pulley (1) then is enclosed within outside the rubber ring (2), is connected with wheel hub (3) by rubber ring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202073410U CN201588919U (en) | 2009-11-26 | 2009-11-26 | Belt pulley for damping vibration of crankshaft of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202073410U CN201588919U (en) | 2009-11-26 | 2009-11-26 | Belt pulley for damping vibration of crankshaft of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201588919U true CN201588919U (en) | 2010-09-22 |
Family
ID=42748699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202073410U Expired - Fee Related CN201588919U (en) | 2009-11-26 | 2009-11-26 | Belt pulley for damping vibration of crankshaft of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201588919U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797830A (en) * | 2012-08-01 | 2012-11-28 | 浙江耐士伦机械有限公司 | Torsional damping crankshaft pulley |
| CN104006142A (en) * | 2014-05-13 | 2014-08-27 | 浙江吉利控股集团有限公司 | Connection structure of crankshaft and shock absorption belt wheel |
| CN107489747A (en) * | 2017-08-10 | 2017-12-19 | 安徽江淮汽车集团股份有限公司 | A kind of mounting structure of bent axle and crank pulley |
| US10138992B2 (en) | 2015-11-13 | 2018-11-27 | Hyundai Motor Company | Damper pulley assembly for vehicle |
| CN109538733A (en) * | 2018-12-20 | 2019-03-29 | 潍柴动力股份有限公司 | A kind of damper pulley |
-
2009
- 2009-11-26 CN CN2009202073410U patent/CN201588919U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797830A (en) * | 2012-08-01 | 2012-11-28 | 浙江耐士伦机械有限公司 | Torsional damping crankshaft pulley |
| CN102797830B (en) * | 2012-08-01 | 2015-10-07 | 浙江耐士伦机械有限公司 | Reverse damping crank pulley |
| CN104006142A (en) * | 2014-05-13 | 2014-08-27 | 浙江吉利控股集团有限公司 | Connection structure of crankshaft and shock absorption belt wheel |
| US10138992B2 (en) | 2015-11-13 | 2018-11-27 | Hyundai Motor Company | Damper pulley assembly for vehicle |
| CN107489747A (en) * | 2017-08-10 | 2017-12-19 | 安徽江淮汽车集团股份有限公司 | A kind of mounting structure of bent axle and crank pulley |
| CN109538733A (en) * | 2018-12-20 | 2019-03-29 | 潍柴动力股份有限公司 | A kind of damper pulley |
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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: 20100922 Termination date: 20121126 |