CN211975815U - Damping belt pulley - Google Patents
Damping belt pulley Download PDFInfo
- Publication number
- CN211975815U CN211975815U CN201922392520.2U CN201922392520U CN211975815U CN 211975815 U CN211975815 U CN 211975815U CN 201922392520 U CN201922392520 U CN 201922392520U CN 211975815 U CN211975815 U CN 211975815U
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- China
- Prior art keywords
- hub
- end wall
- inertia ring
- belt pulley
- pulley
- 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.)
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- 238000013016 damping Methods 0.000 title claims description 8
- 230000035939 shock Effects 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 230000003746 surface roughness Effects 0.000 claims description 4
- 238000003754 machining Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001962 electrophoresis Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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Abstract
The utility model discloses a shock attenuation belt pulley, including wheel hub, rubber circle, inertia ring sum axle sleeve, wheel hub include the end wall and with the tube-shape lateral wall that the end wall is connected, inertia ring sets up the inboard of lateral wall, the rubber circle sets up the inboard of lateral wall with between the inertia ring, the axle sleeve is installed on wheel hub's the end wall, just the axle sleeve is along back to the direction of inertia ring extends, the hardness of axle sleeve is between HRC 30 ~ 35. The utility model discloses the scheme that adopts can solve current shock attenuation belt pulley processing technology complicacy, problem such as processing cost height.
Description
Technical Field
The utility model relates to an engine accessory technical field, specific is a shock attenuation belt pulley.
Background
The automobile crankshaft pulley assembly is usually arranged at the front end of an engine crankshaft and mainly used for driving other accessories, inhibiting or eliminating torsional vibration of the crankshaft and reducing vibration and noise of the whole automobile. Some shock attenuation belt pulleys still have the effect of oil blanket concurrently on the bent axle, when shock attenuation belt pulley played the oil blanket and function, have the part that is used for with the sealing washer contact on the shock attenuation belt pulley, in order to ensure the oil blanket effect, the parameter performance such as hardness, surface roughness of this part need do special treatment.
The existing solution is that cast iron material is used to integrally form the damping belt pulley by casting, and then local heat treatment and machining are performed on the part of the damping belt pulley contacting with the sealing ring. The scheme has the advantages of complex manufacturing process, high manufacturing cost and logistics cost and high rejection rate of parts. In addition, the hub made of cast iron material has a large weight, which is not favorable for the light weight of the whole engine.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the embodiment of the utility model provides a damping belt pulley, it is used for solving at least one in the above-mentioned problem.
The embodiment of the application discloses: a damping belt pulley comprises a hub, a rubber ring, an inertia ring and a shaft sleeve, wherein the hub comprises an end wall and a cylindrical side wall connected with the end wall, the inertia ring is arranged on the inner side of the side wall, the rubber ring is arranged on the inner side of the side wall and between the inertia ring, the shaft sleeve is arranged on the end wall of the hub, the shaft sleeve extends in a direction back to the inertia ring, and the hardness of the shaft sleeve is between HRC 30-35.
Specifically, the hub is formed by stamping a hot-rolled steel plate.
Specifically, the end wall of the hub has a drawn portion that protrudes toward the inertia ring, and the boss is fitted in the drawn portion.
Specifically, the sleeve is in interference fit with the drawing part.
Specifically, the shaft sleeve is machined and formed by a steel pipe machine.
Specifically, the steel pipe is further subjected to heat treatment after being machined.
Specifically, a plurality of lightening holes are further formed in the end wall of the hub.
Specifically, the surface roughness of the outer side wall of the shaft sleeve is between Ra 0.2-0.63.
The utility model discloses following beneficial effect has at least:
1. through being split type with wheel hub and axle sleeve design, can be so that wheel hub and axle sleeve adopt different material and technology to process respectively to obtain wheel hub and the axle sleeve that the performance is different, with under the prerequisite that satisfies whole shock attenuation belt pulley's working property requirement, solve the complicated problem of traditional integral type shock attenuation belt pulley processing technology, reduce the manufacturing cost of belt pulley.
2. Because the hub and the shaft sleeve can be processed separately in the previous working procedure, when a single hub or shaft sleeve is poor, another matched product cannot be influenced, the whole matched product cannot be scrapped, and the scrapping cost of parts is greatly reduced.
3. The volume of a single part is smaller than that of a traditional integrated part, so that the transportation cost is saved.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of a shock absorbing pulley according to an embodiment of the present invention;
figure 2 is a cross-sectional view of the shock absorbing pulley in an embodiment of the present invention.
Reference numerals of the above figures: 1. a hub; 11. an end wall; 111. a deepening section; 112. lightening holes; 12. a side wall; 2. a rubber ring; 3. an inertia ring; 4. and a shaft sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 and 2, the damper pulley of the present embodiment includes a hub 1, a rubber ring 2, an inertia ring 3, and a bushing 4. The hub 1 comprises an end wall 11 and a cylindrical side wall 12 connected to the end wall 11, and preferably, the end wall 11 and the side wall 12 are integrally formed. The inertia ring 3 is disposed inside the side wall 12, and the rubber ring 2 is disposed between the inertia ring 3 and the inside of the side wall 12. The sleeve 4 is mounted on the end wall 11 of the hub 1 and the sleeve 4 extends in a direction away from the side of the inertia ring 3 such that the sleeve 4 contacts and engages the sealing ring. The hardness of the shaft sleeve 4 is HRC 30-35. Specifically, the inner side of the side wall 12 of the hub 1 is used for mounting the rubber ring 2 and the inertia ring 3, the outer side of the side wall is provided with a tooth groove for connecting with a belt, the hub 1, the rubber ring 2 and the inertia ring 3 are assembled in an axial press-fitting mode, and the shape of the hub 1 can be determined according to the shape of a crankshaft at the front end of an engine and the practical application condition.
Specifically, the hub 1 is formed by stamping a hot-rolled steel plate. As shown in fig. 2, the end wall 11 of the hub 1 has a drawn portion 111 that protrudes toward the inertia ring 3, the boss 4 may be provided in the drawn portion 111, and the boss 4 may be interference-fitted with a side wall of the drawn portion 111. By adopting the scheme, compared with the mode of preparing the hub 1 in the prior art in a casting mode, the hub 1 is prepared by the stamping process, so that the material required by the preparation of the hub 1 can be saved, the production tact of the hub 1 is improved, and the economical efficiency of the production of the hub 1 is improved.
Preferably, after the wheel hub 1 is subjected to punch forming, surface treatment can be performed through an electrophoresis process, so that the corrosion resistance, the oxidation resistance and other properties of the wheel hub 1 are improved.
Specifically, the sleeve 4 may be machined from a steel pipe, and further, after the sleeve 4 is formed by machining the steel pipe, the sleeve 4 is subjected to a heat treatment, such as a quenching treatment, to improve mechanical properties such as hardness of the sleeve 4. Preferably, the shaft sleeve 4 after heat treatment is further subjected to grinding treatment, so that the surface roughness of the outer side wall of the shaft sleeve 4 reaches Ra 0.2-0.63, and the performance requirement when the outer side wall of the shaft sleeve 4 is matched with the sealing ring is met.
Specifically, as shown in fig. 1, the end wall 11 of the hub 1 is further provided with a plurality of lightening holes 112, and the plurality of lightening holes 112 can further reduce the overall weight of the damper pulley, thereby achieving the effect of reducing the total weight of the engine.
In summary, compared with the prior art, the damping pulley of the embodiment has the following advantages:
1. through being split type with wheel hub 1 and axle sleeve 4 design, can be so that wheel hub 1 and axle sleeve 4 adopt different material and technology to process respectively to obtain wheel hub 1 and axle sleeve 4 that the performance is different, with under the prerequisite that satisfies the working property requirement of whole shock attenuation belt pulley, solve the complicated problem of traditional integral type shock attenuation belt pulley processing technology, reduce the manufacturing cost of belt pulley.
2. Because the hub 1 and the shaft sleeve 4 can be processed separately in the previous working procedure, when a single hub 1 or shaft sleeve 4 is poor, another matched product cannot be influenced, the whole matched product cannot be scrapped, and the scrapping cost of parts is greatly reduced.
3. The volume of a single part is smaller than that of a traditional integrated part, so that the transportation cost is saved.
The present invention has been explained by using specific embodiments, and the explanation of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (8)
1. A damping belt pulley is characterized by comprising a hub, a rubber ring, an inertia ring and a shaft sleeve, wherein the hub comprises an end wall and a cylindrical side wall connected with the end wall, the inertia ring is arranged on the inner side of the side wall, the rubber ring is arranged on the inner side of the side wall and between the inertia ring, the shaft sleeve is installed on the end wall of the hub, the shaft sleeve extends in a direction back to the inertia ring, and the hardness of the shaft sleeve is HRC 30-35.
2. The damper pulley as in claim 1, wherein said hub is stamped and formed of hot-rolled steel sheet.
3. The damper pulley according to claim 1, wherein the end wall of the hub has a drawn portion that is convex toward the inertia ring, and the bushing is mounted in the drawn portion.
4. The damped pulley according to claim 3 wherein said bushing is an interference fit with said drawn portion.
5. The vibration-damped pulley according to claim 1 wherein said bushing is machined from steel tubing.
6. The shock absorbing pulley as in claim 5, wherein said steel tube is further heat treated after machining.
7. The vibration-damped pulley according to claim 1 wherein said hub has a plurality of lightening holes formed in an end wall thereof.
8. The pulley as claimed in claim 1, wherein the outer wall of the bushing has a surface roughness of Ra 0.2-0.63.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922392520.2U CN211975815U (en) | 2019-12-27 | 2019-12-27 | Damping belt pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922392520.2U CN211975815U (en) | 2019-12-27 | 2019-12-27 | Damping belt pulley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211975815U true CN211975815U (en) | 2020-11-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922392520.2U Active CN211975815U (en) | 2019-12-27 | 2019-12-27 | Damping belt pulley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211975815U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111075905A (en) * | 2019-12-27 | 2020-04-28 | 岱高（苏州）汽车零部件有限公司 | Damping belt pulley |
-
2019
- 2019-12-27 CN CN201922392520.2U patent/CN211975815U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111075905A (en) * | 2019-12-27 | 2020-04-28 | 岱高（苏州）汽车零部件有限公司 | Damping belt pulley |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240118 Address after: No. 199 Panlong Road, Jiangling Street, Wujiang District, Suzhou City, Jiangsu Province, 215000 Patentee after: Daigao (Suzhou) Drive System Co.,Ltd. Address before: 215000 E05, 1801 pangjin Road, Wujiang Economic and Technological Development Zone, Suzhou City, Jiangsu Province Patentee before: DAYCO (SUZHOU) AUTO PARTS Co.,Ltd. |