CN102384242B - Crankshaft pulley - Google Patents
Crankshaft pulley Download PDFInfo
- Publication number
- CN102384242B CN102384242B CN 201110404734 CN201110404734A CN102384242B CN 102384242 B CN102384242 B CN 102384242B CN 201110404734 CN201110404734 CN 201110404734 CN 201110404734 A CN201110404734 A CN 201110404734A CN 102384242 B CN102384242 B CN 102384242B
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- China
- Prior art keywords
- driving arm
- spring
- belt
- elastic member
- annular groove
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- Expired - Fee Related
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Abstract
The invention discloses a crankshaft pulley which is stable and reliable and can greatly improve the damping effect. The crankshaft pulley comprises a driving plate and a belt plate which are sleeved together, wherein a ring groove is formed on the circumferential surface of an inner hole of the belt plate; at least two circumferentially distributed elastic components are arranged in the ring groove; at least two spring stop block groups used for blocking the elastic components are arranged on the wall of the ring groove; each spring stop block group comprises at least one pair of spring stop blocks arranged on two side walls of the ring groove; the driving plate is provided with a driving arm corresponding to the elastic components; a moving clearance for the driving arm to swing is reserved between the adjacent spring stop blocks in each spring stop block group; the driving arm extends into the ring groove and the moving clearance between the corresponding pair of spring stop blocks; and side surfaces on two sides of the driving arm respectively butt against the elastic components at the corresponding sides. The crankshaft pulley is mainly used in the crankshaft transmission mechanism of an automobile engine.
Description
Technical field
The present invention relates to a kind of crank mechanism for motor car engine, refer more particularly to the crank pulley in the crank mechanism.
Background technique
On the one hand, along with the development of automotive engineering and the compatriots intensification to the automobile awareness, the user requires more and more higher to vehicle riding comfort; On the other hand, along with generally popularization and the high output diesel engine of turbosupercharged engine are progressively used, brought larger impact to power assembly in passenger vehicle, so that transmission system produces vibration.In order to reduce the vibration of transmission system, the splendid double mass flywheel of effectiveness in vibration suppression is widely used, so that being delivered to the vibration of gearbox, significantly reduced by motor, but simultaneously, self vibrating but of engine crankshaft significantly increases, and causes crankshaft front end belt pulley Vibration Synchronization to increase.And crank pulley is by annexes such as belt drives generator, power assistance pump for steering, air condition compressor, its vibration increase can bring a series of side effect, for example: the belt tension fluctuation, belt tightener acutely swings, belt slippage produces noise, and the problems such as train bearing and tensioner life shortening.
Usually the vibration damping crank pulley that adopts adopts rubber ring isolation inner ring (connection bent axle) to be connected the connection belt with the outer ring) vibration, can decay to a certain extent is delivered to the vibration of belt train by bent axle.But because rigidity is larger, effectiveness in vibration suppression is limited; And ageing of rubber easily comes off, and unexpected failure phenomenon often occurs, and therefore recalls, and causes huge economic loss.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of reliable and stable, and can significantly improve the crank pulley of effectiveness in vibration suppression.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: crank pulley, comprise the drive plate and the belt pulley that are set in together, be provided with annular groove on the circumferential surface of belt pulley endoporus, be provided with the elastic member of at least two circumferential arrangement in the annular groove, be provided with at least two spring block groups that are used for deadening elastic member on the wall of annular groove, each spring block group comprises that at least one pair of is arranged on the spring block on the sidewall of annular groove both sides, be provided with the driving arm corresponding with elastic member on the described drive plate, leave the free gap that swings for corresponding driving arm between the adjacent spring block of each spring block group, driving arm stretches into annular groove, in the free gap between corresponding a pair of spring block, its side, both sides is resisted against respectively on the elastic member of a corresponding side.
Described elastic member comprises at least one spring, and the two ends of every spring are respectively arranged with spring seat.
Described elastic member comprises at least two radial spring groups that are arranged side by side diametrically, and each radial spring group comprises at least one spring, and the two ends of every spring are respectively arranged with spring seat.
Described elastic member comprises at least two axle spring groups that are arranged side by side in the axial direction, and each axle spring group comprises at least one spring, and the two ends of every spring are respectively arranged with spring seat.
Described driving arm is arranged along even circumferential.
Described belt pulley comprises: belt basal disc and be positioned at the annular side plate on belt basal disc one side end face and be arranged on annular end cap on the belt basal disc opposite side end face.
Described drive plate comprises: drive substrate and be positioned at the drive installation dish that drives the substrate middle part, be fixed with connecting ring on the drive installation dish, described driving arm is arranged on the connecting ring.
The invention has the beneficial effects as follows: drive plate of the present invention forms by the elastic member in the annular groove of driving arm and belt pulley and belt pulley and flexibly connects, the vibration of front end belt train is reduced to negligible degree, has obtained extraordinary effectiveness in vibration suppression; And its life-span is better than traditional rubber damping crank pulley, the failure phenomenon that can not meet accident, and namely failure mode is safer.In addition, rigidity and combination by the coupling spring can obtain different damping behavior curves, adapt to different motors.In addition, can also obtain different damping behavior curves by increasing radial spring group or axle spring group, adapt to different motors.
Description of drawings
Fig. 1 is the broken section structural representation of crank pulley of the present invention.
Fig. 2 is the rip cutting cross-sectional view that Fig. 1 amplifies.
Fig. 3 has removed the structural representation behind the driving arm among Fig. 1.
Fig. 4 is the rip cutting cross-sectional view of the present invention that radially is provided with two coil springs.
Fig. 5 is the rip cutting cross-sectional view of the present invention that axially is provided with two coil springs.
Reference character among Fig. 1 to Fig. 5 is: 1, drive plate, 11, drive substrate, 12, the drive installation dish, 121, annular mounting edge, 122, mounting hole, 2, driving arm, 3, belt pulley, 30, annular groove, 31, the belt basal disc, 32, side plate, 33, end cap, 4, spring block, 5, spring, 6, spring seat, 7, connecting ring.
Embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the present invention in detail.
As depicted in figs. 1 and 2, crank pulley of the present invention, comprise: by the driving substrate 11 of annular be positioned at drive plate 1 that the drive installation dish 12 that drives substrate 11 middle parts consists of and by belt basal disc 31 be positioned at the annular side plate 32 on belt basal disc 31 1 side end faces and be arranged on the belt pulley 3 that the annular end cap 33 on the belt basal disc 31 opposite side end faces consists of, belt basal disc 31, side plate 32 and end cap 33 surround annular groove 30, belt pulley 3 movable sets are on the drive installation dish 12 of drive plate 1, be fixed with connecting ring 7 on the drive installation dish 12, circumferentially evenly be provided with a pair of driving arm 2 on the connecting ring 7, corresponding with it, circumferentially be provided with two elastic members in the annular groove 30, each elastic member comprises: four springs 5, the two ends of every spring 5 are respectively arranged with for the spring seat 6 that supports and lead, and the spring seat 6 on the abutting end of adjacent springs 5 sticks together back-to-back; The both sides sidewall of described annular groove 30 is to be provided with two pairs of spring blocks 4 that are used for deadening two above-mentioned elastic members on side plate 32 and end cap 33 inside side walls---referring to shown in Figure 3, leave the free gap that swings for corresponding driving arm 2 between every pair of spring block 4, driving arm 2 stretches in annular groove 30, the free gap between corresponding a pair of spring block 4, and its side, both sides is resisted against respectively on the spring seat 6 of elastic member one end of a corresponding side.In the present embodiment, described driving substrate 11, drive installation dish 12 and annular mounting edge 121 are the integral type structure; Described belt basal disc 31 and side plate 32 are the integral type structure; Described connecting ring 7 and a pair of driving arm 2 are the integral type structure; Also be provided with annular mounting edge 121 on the inner peripheral surface of described drive installation dish 12, usually offer 3 to 6 mounting holes 122 that are used for fixed crankshaft on the annular mounting edge 121.
Above-mentioned elastic member not only can be arranged to individual pen structure shown in Figure 2, only has a coil spring that is:; Also can be arranged to as shown in Figure 4 at radially (different radii) two coil structures of two coil springs 5 and two coil structures that two coil springs 5 are set in the axial direction as shown in Figure 5 are set.During actual fabrication, for two coil structures shown in Figure 4, usually between two coil springs 5 of each elastic member, be provided with isolating plate; For two coil structures shown in Figure 5, in order to match with the elastic member of two coil structures among Fig. 5, driving arm 2 can be set on drive plate 1 in pairs, the spring block 4 that matches with corresponding a pair of spring block 4 on annular groove 30 sidewalls is being set respectively on the diapire of annular groove 30, form two free gaps between corresponding three spring blocks 4, paired driving arm 2 lays respectively in these two free gaps.
During application, the bent axle of motor and drive installation dish 12 are rigidly connected.During actual the use, bent axle drives a pair of driving arm 2 by drive installation dish 12, connecting ring 7 and rotates, and 2 of a pair of driving arms pass through extrusion spring 5 rear band movable strap discs 3 and rotate.Like this, spring 5 just falls engine crankshaft by the shock absorption that drive plate 1 and connecting ring 7 pass to driving arm 2, allows the rotation of skin Moving plate 3 become smooth-going soft, thereby stablized the motion of belt train, stablize belt tension, reduced the swing of Idle wheel, reduced system noise and vibration.
Claims (3)
1. crank pulley, comprise: the drive plate that is set in together (1) and belt pulley (3), it is characterized in that: be provided with annular groove (30) on the circumferential surface of described belt pulley (3) endoporus, be provided with the elastic member of at least two circumferential arrangement in the annular groove (30), be provided with at least two spring block groups that are used for deadening elastic member on the wall of annular groove (30), each spring block group comprises that at least one pair of is arranged on the spring block (4) on the sidewall of annular groove (30) both sides, be provided with the driving arm corresponding with elastic member (2) on the described drive plate (1), leave the free gap that swings for driving arm (2) between the adjacent spring block (4) of each spring block group, driving arm (2) stretches into annular groove (30), be arranged in the free gap between the corresponding spring block (4), its side, both sides is resisted against respectively on the elastic member of a corresponding side; Described elastic member comprises at least one spring (5), and the two ends of every spring (5) are respectively arranged with spring seat (6); Described driving arm (2) is arranged along even circumferential.
2. crank pulley according to claim 1, it is characterized in that: described belt pulley (3) comprising: belt basal disc (31) and be positioned at the annular side plate (32) on belt basal disc (31) one side end faces and be arranged on annular end cap (33) on belt basal disc (31) the opposite side end face.
3. crank pulley according to claim 1 and 2, it is characterized in that: described drive plate (1) comprising: drive substrate (11) and be positioned at the drive installation dish (12) that drives substrate (11) middle part, be fixed with connecting ring (7) on the drive installation dish (12), described driving arm (2) is arranged on the connecting ring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110404734 CN102384242B (en) | 2011-11-24 | 2011-12-08 | Crankshaft pulley |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110377341.7 | 2011-11-24 | ||
| CN201110377341 | 2011-11-24 | ||
| CN 201110404734 CN102384242B (en) | 2011-11-24 | 2011-12-08 | Crankshaft pulley |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102384242A CN102384242A (en) | 2012-03-21 |
| CN102384242B true CN102384242B (en) | 2013-01-30 |
Family
ID=45823937
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205070248U Expired - Fee Related CN202326978U (en) | 2011-11-24 | 2011-12-08 | Crank pulley |
| CN 201110404734 Expired - Fee Related CN102384242B (en) | 2011-11-24 | 2011-12-08 | Crankshaft pulley |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205070248U Expired - Fee Related CN202326978U (en) | 2011-11-24 | 2011-12-08 | Crank pulley |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN202326978U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797830B (en) * | 2012-08-01 | 2015-10-07 | 浙江耐士伦机械有限公司 | Reverse damping crank pulley |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2697389Y (en) * | 2004-04-30 | 2005-05-04 | 张玉华 | Reinforced six group of spring oil sealed type clutch for leather belt |
| CN2849323Y (en) * | 2005-06-28 | 2006-12-20 | 吉林大学 | Double quality flywheel type torsional damper |
| CN2861626Y (en) * | 2005-11-18 | 2007-01-24 | 重庆建设摩托车股份有限公司 | Combined gear |
| CN201129396Y (en) * | 2007-09-20 | 2008-10-08 | 东风汽车有限公司 | Dual mass flywheel torsional vibration damper |
| CN101539194A (en) * | 2009-04-09 | 2009-09-23 | 李志敏 | Unidirectional pulley of automobile generator |
| CN201561090U (en) * | 2009-12-03 | 2010-08-25 | 重庆青山工业有限责任公司 | Driven frame type torsion vibration absorber of flywheel |
| CN201582376U (en) * | 2009-12-18 | 2010-09-15 | 宁波市江北海通汽车配件有限公司 | Unidirectional belt wheel of electric generator of automobile |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3698928B2 (en) * | 1999-09-10 | 2005-09-21 | 光洋精工株式会社 | Pulley unit |
-
2011
- 2011-12-08 CN CN2011205070248U patent/CN202326978U/en not_active Expired - Fee Related
- 2011-12-08 CN CN 201110404734 patent/CN102384242B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2697389Y (en) * | 2004-04-30 | 2005-05-04 | 张玉华 | Reinforced six group of spring oil sealed type clutch for leather belt |
| CN2849323Y (en) * | 2005-06-28 | 2006-12-20 | 吉林大学 | Double quality flywheel type torsional damper |
| CN2861626Y (en) * | 2005-11-18 | 2007-01-24 | 重庆建设摩托车股份有限公司 | Combined gear |
| CN201129396Y (en) * | 2007-09-20 | 2008-10-08 | 东风汽车有限公司 | Dual mass flywheel torsional vibration damper |
| CN101539194A (en) * | 2009-04-09 | 2009-09-23 | 李志敏 | Unidirectional pulley of automobile generator |
| CN201561090U (en) * | 2009-12-03 | 2010-08-25 | 重庆青山工业有限责任公司 | Driven frame type torsion vibration absorber of flywheel |
| CN201582376U (en) * | 2009-12-18 | 2010-09-15 | 宁波市江北海通汽车配件有限公司 | Unidirectional belt wheel of electric generator of automobile |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2001-82584A 2001.03.27 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102384242A (en) | 2012-03-21 |
| CN202326978U (en) | 2012-07-11 |
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Granted publication date: 20130130 Termination date: 20141208 |
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