CN220540245U - Torsional damping crank pulley - Google Patents
Torsional damping crank pulley Download PDFInfo
- Publication number
- CN220540245U CN220540245U CN202322342541.XU CN202322342541U CN220540245U CN 220540245 U CN220540245 U CN 220540245U CN 202322342541 U CN202322342541 U CN 202322342541U CN 220540245 U CN220540245 U CN 220540245U
- Authority
- CN
- China
- Prior art keywords
- sound insulation
- damping
- belt pulley
- piece
- connecting rod
- 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.)
- Active
Links
- 238000013016 damping Methods 0.000 title claims abstract description 26
- 238000009413 insulation Methods 0.000 claims abstract description 28
- 230000035939 shock Effects 0.000 claims description 17
- 229920000742 Cotton Polymers 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
Landscapes
- Pulleys (AREA)
Abstract
The utility model provides a torsional damping crank pulley which comprises a hub, a pulley outer ring and a rubber ring clamped between the hub and the pulley outer ring, wherein the hub comprises a connecting disc, the inner side of the connecting disc is connected with a wheel shaft through a plurality of connecting plates, the wheel shaft is connected with a crank shaft through keys, damping parts are arranged on the connecting plates, each damping part comprises a vertical block, a connecting rod, a spring, a moving block, an arc-shaped block and a damping pad, a sound insulation assembly is arranged in the pulley outer ring, each sound insulation assembly comprises a sound insulation cavity, the sound insulation cavities are formed in the pulley outer ring, and a group of sound insulation plates which are arranged at equal intervals are arranged on the inner wall of each sound insulation cavity. The utility model has the beneficial effects that under the action of the damping piece, the arc blocks can reduce the impact load of the wheel axle to the crankshaft, thereby realizing the purpose of damping, and the plurality of arc blocks annularly array and prop against the crankshaft, thereby improving the damping range; under the effect of the sound insulation component, the sound insulation board and the sound insulation layer can be blocked under the combined action, and the noise reduction performance is improved.
Description
Technical Field
The utility model belongs to the technical field of belt pulleys, and particularly relates to a torsional damping crank pulley.
Background
The damping belt pulley on the crankshaft of the automobile engine consists of a hub, a belt pulley and a damping rubber ring, and can reach a certain torsional rigidity after being assembled so as to meet the use requirement of products. When the existing belt pulley works and the rotating shaft connected with the belt pulley rotates, the hub generates impact load to the rotating shaft, so that the belt pulley has poor damping performance; the belt pulley body vibrates and generates noise, and is easy to interfere with the surrounding environment.
Disclosure of Invention
Based on the above background, it is an object of the present utility model to provide a torsional vibration damping crank pulley which reduces damage to the crankshaft from vibration, blocks noise, increases heat dissipation area, and increases service life, especially for use in automotive engines.
The technical scheme of the utility model is as follows: the utility model provides a torsion shock attenuation crank pulley, includes wheel hub, belt pulley outer lane and presss from both sides the rubber ring between wheel hub and belt pulley outer lane, rubber ring and belt pulley outer lane between be connected through tooth form structure engagement mode, wheel hub include the connection pad, be connected with the shaft through a plurality of connecting plates in the connection pad inboard, shaft and crank key connection, the connecting plate on be equipped with the shock attenuation piece, and be close to the bent axle setting, the shock attenuation piece include perpendicular piece, connecting rod, spring, movable block, arc piece and shock pad, perpendicular piece fix on the connecting plate, perpendicular piece inboard is equipped with the connecting rod, the other end of connecting rod enters into the circular slot of one side on the movable block, the opposite side of movable block is equipped with the arc piece, the inboard of arc piece is equipped with the shock pad, the arc piece is close to the bent axle setting, is equipped with the spring at the connecting rod overcoat, the spring both ends fix respectively on perpendicular piece and movable block, the internally mounted at the belt pulley outer lane has the sound insulation component, the sound insulation component includes the sound insulation chamber, the inside in the belt pulley outer lane is seted up to install a set of equidistant baffles at the inner wall in sound insulation chamber, be the puigging between two adjacent baffles.
Further, the outer edge of the rubber ring is provided with a plurality of first teeth, and the inner side of the outer ring of the belt pulley is provided with second teeth meshed with the first teeth.
Further, an annular groove is formed in the periphery of the outer side of the outer ring of the belt pulley.
Further, a key groove is arranged in the wheel shaft.
Further, a sliding rail is arranged in the circular groove, a sliding block matched with the sliding rail is arranged on the outer side of the connecting rod, and the sliding block is arranged in the sliding rail in a sliding way.
Further, there is a grit blasted layer on the hub and pulley outer race.
Further, the sound insulation layer is polyester fiber cotton.
The utility model has the advantages and positive effects that: by adopting the technical scheme, under the action of the damping piece, the arc blocks can reduce the impact load of the wheel axle to the crankshaft, so that the purpose of damping is realized, the multiple arc blocks are annularly arrayed and propped against the crankshaft, and the damping range is improved; under the effect of the sound insulation component, the sound insulation board and the sound insulation layer can be blocked under the combined action, and the noise reduction performance is improved.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic structural view of the shock absorbing member.
In the figure:
1. pulley outer ring 2, rubber ring 3, connection disc
4. Connecting plate 5, wheel axle 6 and vertical block
7. Connecting rod 8, spring 9 and moving block
10. Arc-shaped block 11, shock pad 12 and sound insulation cavity
13. Acoustic baffle 14, acoustic layer 15, annular groove
Detailed Description
As shown in fig. 1-2, the technical scheme of the utility model is as follows: the torsional damping crank pulley comprises a hub, a pulley outer ring 1 and a rubber ring 2 clamped between the hub and the pulley outer ring 1, wherein the rubber ring 2 is connected with the pulley outer ring 1 in a tooth-shaped structure meshing manner, (the tooth-shaped structure is not shown in the figure), the hub comprises a connecting disc 3, the inner side of the connecting disc 3 is connected with a wheel shaft 5 through a plurality of connecting plates 4, the wheel shaft 5 is connected with a crank shaft in a key way, a damping piece is arranged on the connecting plates 4 and is arranged close to the crank shaft,
the shock absorbing piece comprises a vertical block 6, a connecting rod 7, a spring 8, a moving block 9, an arc-shaped block 10 and a shock absorbing pad 11, wherein the vertical block 6 is fixed on the connecting plate 4, the connecting rod 7 is arranged at the inner side of the vertical block 6, the other end of the connecting rod 7 enters a circular groove at one side of the moving block 9, the arc-shaped block 10 is arranged at the other side of the moving block 9, the shock absorbing pad 11 is arranged at the inner side of the arc-shaped block 10, the arc-shaped block 10 is arranged close to a crankshaft, the spring 8 is sleeved outside the connecting rod 7, two ends of the spring 8 are respectively fixed on the vertical block 6 and the moving block 9, when the crankshaft rotates, the spring 8, the arc-shaped block 10 and the shock absorbing pad 11 can reduce the impact load of a hub on a rotating shaft, so that the purpose of shock absorption is realized,
the inside mounting at belt pulley outer lane 1 has the acoustic celotex subassembly, and the acoustic celotex subassembly includes sound insulation chamber 12, and sound insulation chamber 12 is offered in the inside of belt pulley outer lane 1 to install the acoustic celotex board 13 of a set of equidistance range at the inner wall in sound insulation chamber 12, be puigging 14 between two adjacent acoustic celotex boards 13, the noise that belt pulley outer lane 1 vibrations generated can block under the combined action of acoustic celotex board 13 and puigging 14, avoids making the engine produce abnormal sound because of vibrations, can guarantee automobile user's driving experience.
In this embodiment, the outer edge of the rubber ring 2 is provided with a plurality of first teeth, the inner side of the outer ring 1 of the belt pulley is provided with second teeth meshed with the first teeth, and a tooth-shaped structure meshing mode is adopted to improve the heat dissipation area and the service life.
In this embodiment, an annular groove 15 is formed on the outer circumference of the outer ring 1 of the pulley, and the annular groove 15 is used for placing a belt.
In this embodiment, a key slot is provided in the axle 5.
In the embodiment, the sliding rail is arranged in the circular groove, the sliding block matched with the sliding rail is arranged on the outer side of the connecting rod 7, and the sliding color of the sliding block is also in the sliding rail.
In the embodiment, the sand blasting treatment layer exists on the hub and the belt pulley outer ring 1, so that the strength of the crankshaft damping belt pulley is improved, the fatigue resistance and the shock resistance are improved, and the damage of vibration to the crankshaft is reduced.
In this embodiment, polyester fiber cotton is preferred for the sound insulation layer 14.
The foregoing describes one embodiment of the present utility model in detail, but the description is only a preferred embodiment of the present utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by the present utility model.
Claims (6)
1. A torsional vibration damping crank pulley, characterized in that: including wheel hub, belt pulley outer lane and press from both sides the rubber ring between wheel hub and belt pulley outer lane, rubber ring and belt pulley outer lane between be connected through tooth form structure meshing mode, wheel hub include the connection pad, be connected with the shaft through a plurality of connecting plates in the connection pad inboard, shaft and crank key connection, the connecting plate on be equipped with the shock attenuation piece, and be close to the bent axle setting, the shock attenuation piece include perpendicular piece, connecting rod, spring, movable block, arc piece and shock pad, perpendicular piece fix on the connecting plate, perpendicular piece inboard is equipped with the connecting rod, the other end of connecting rod enters into the circular slot of one side on the movable block, the opposite side of movable block is equipped with the arc piece, the inboard of arc piece is equipped with the shock pad, the arc piece is close to the bent axle setting, is equipped with the spring at the connecting rod overcoat, the spring both ends fix respectively on perpendicular piece and movable block, internally mounted at the belt pulley outer lane has the sound insulation component, the sound insulation component includes the sound insulation chamber, the sound insulation chamber is offered in the inside of belt pulley outer lane to install the sound insulation board of a set of equidistance between two adjacent boards.
2. A torsional vibration damping crank pulley according to claim 1, characterized in that: the outer edge of the rubber ring is provided with a plurality of first teeth, and the inner side of the outer ring of the belt pulley is provided with second teeth meshed with the first teeth.
3. A torsional vibration damping crank pulley according to claim 1, characterized in that: the outer side circumference of the outer ring of the belt pulley is provided with an annular groove.
4. A torsional vibration damping crank pulley according to claim 1, characterized in that: and a key slot is arranged in the wheel shaft.
5. A torsional vibration damping crank pulley according to claim 1, characterized in that: the round groove in be equipped with the slide rail, be equipped with in the outside of connecting rod with slide rail matched with slider, the slider slides and establishes in the slide rail.
6. A torsional vibration damping crank pulley according to claim 1, characterized in that: the sound insulation layer is polyester fiber cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322342541.XU CN220540245U (en) | 2023-08-30 | 2023-08-30 | Torsional damping crank pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322342541.XU CN220540245U (en) | 2023-08-30 | 2023-08-30 | Torsional damping crank pulley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220540245U true CN220540245U (en) | 2024-02-27 |
Family
ID=89976120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322342541.XU Active CN220540245U (en) | 2023-08-30 | 2023-08-30 | Torsional damping crank pulley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220540245U (en) |
-
2023
- 2023-08-30 CN CN202322342541.XU patent/CN220540245U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |