CN217152889U - Engine decoupling belt wheel with novel shell - Google Patents
Engine decoupling belt wheel with novel shell Download PDFInfo
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- CN217152889U CN217152889U CN202123371759.5U CN202123371759U CN217152889U CN 217152889 U CN217152889 U CN 217152889U CN 202123371759 U CN202123371759 U CN 202123371759U CN 217152889 U CN217152889 U CN 217152889U
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- pulley
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- band pulley
- actuator
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- 239000004519 grease Substances 0.000 claims description 3
- 230000002040 relaxant effect Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model discloses an engine decoupling zero band pulley with novel shell, include: band pulley, the actuator, band pulley shell and spring cap, the actuator sets up in it along the band pulley central line, be equipped with the bearing between actuator and the band pulley shell, actuator and bent axle fixed connection just can be relative the band pulley, band pulley shell and spring cap rotate, the band pulley shell sets up in it and rather than the inner wall rigid connection at top along the circumference of band pulley, one side of band pulley shell circumference is equipped with first opening, one side of spring cap circumference is equipped with the second opening, the second opening inlays from first opening and establishes in the band pulley shell, form annular cavity between band pulley shell and the spring cap, be equipped with the spring unit that can do flexible relaxation motion in the annular cavity. Through improving the shell into three layer construction design, band pulley, pulley shell and spring cover promptly for the external diameter of spring cover need not to design according to the external diameter of band pulley, only needs the external diameter that adapts to the spring, has reduced processing cost and assembly cost, makes things convenient for follow-up maintenance.
Description
Technical Field
The utility model relates to an engine technical field, specific is an engine decoupling zero band pulley with novel shell.
Background
The drive shaft in an internal combustion engine fluctuates in rotational speed due to the periodic variation of the combustion pressure in the various cylinders, which fluctuations in rotational speed are transmitted to the accessory system by the drive shaft driving the drive belt of the internal combustion engine, which is thus subjected to periodic tension variations. In the prior art, in order to "filter" the fluctuations in the rotational speed transmitted from the drive shaft to the drive belt, the engine may use a decoupling pulley as the drive pulley. The elastic part is positioned in the decoupling belt wheel shell, the actuator of the decoupling belt wheel is connected with the crankshaft, the rotation speed fluctuation is transmitted to the elastic part, and in the compression or relaxation process of the elastic part, the rotation speed fluctuation is absorbed by the elastic part, so that the running stability of the driving belt wheel and the driving belt system is kept, and the decoupling function is realized.
And the shell of decoupling pulley comprises two parts at present, and band pulley and spring cover promptly, the external diameter of spring cover needs to be designed according to the external diameter of band pulley, and its elastic component is the external diameter of spring, receives the restriction of spring cover external diameter for the spring external diameter need design the same big as the external diameter of spring cover, then can cause the spring to increase the cost that should not have, and bearing and oil blanket also will select bigger design, thereby make design difficulty, manufacturing cost increase.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the embodiment of the utility model provides an engine decoupling zero band pulley with novel shell, it is used for solving the problem that the spring is with high costs, design difficulty.
The embodiment of the application discloses engine decoupling belt wheel with novel shell improves into three layer construction design through the shell that forms original band pulley and spring cover, and band pulley, band pulley shell and spring cover combine together promptly for the external diameter of spring cover need not to design according to the external diameter of band pulley, only needs the external diameter that adapts to the spring, has reduced processing cost and assembly cost, has also reduced the degree of difficulty of design simultaneously, makes things convenient for follow-up maintenance.
Wherein, an engine decoupling zero band pulley with novel shell for be connected with the bent axle includes:
the actuator is arranged in the pulley shell along the central line of the pulley, a bearing is arranged between the actuator and the pulley shell, the actuator is fixedly connected with the crankshaft and can rotate relative to the pulley, the pulley shell and the spring cover, the pulley shell is arranged in the pulley shell along the circumferential direction of the pulley and is rigidly connected with the inner wall of the top of the pulley shell, a first opening portion is arranged on one circumferential side of the pulley shell, a second opening portion is arranged on one circumferential side of the spring cover, the second opening portion is embedded in the pulley shell from the first opening portion so that the spring cover is rigidly connected with the inner wall of the top of the pulley shell, an annular cavity is formed between the pulley shell and the spring cover, and a spring assembly capable of doing telescopic and relaxing movement is arranged in the annular cavity.
Furthermore, the actuator is respectively provided with a first driving part and a second driving part along two axial sides of the actuator, and the first driving part and the second driving part respectively penetrate into the belt pulley shell from the first opening part and can be abutted against the spring assembly.
Furthermore, a first limiting part and a second limiting part are respectively and oppositely arranged on the inner wall of the pulley shell opposite to the first opening part.
Furthermore, the first limiting part is respectively provided with a first limiting surface and a second limiting surface along two sides of the circumferential direction, and the second limiting part is respectively provided with a third limiting surface and a fourth limiting surface along two sides of the circumferential direction.
Furthermore, a third limiting part and a fourth limiting part are respectively and oppositely arranged on the inner wall of the spring cover opposite to the second opening part.
Furthermore, a fifth limiting surface and a sixth limiting surface are respectively arranged on two sides of the third limiting portion in the circumferential direction, and a seventh limiting surface and an eighth limiting surface are respectively arranged on two sides of the fourth limiting portion in the circumferential direction.
Furthermore, the spring assembly comprises a first spring and a second spring, the first spring and the second spring are both arc springs, and elastic guide sleeves are respectively sleeved at two ends of the first spring and the second spring.
Further, the bearing is a sliding bearing or a rolling bearing.
Further, the belt wheel shell and the spring cover are fixedly connected through interference fit or bolt connection.
Further, the oil seal is arranged between the spring cover and the actuator, so that lubricating grease filled in the first spring and the second spring is sealed.
The utility model has the advantages as follows:
the shell formed by the original belt wheel and the spring cover is improved into a three-layer structure design, namely the belt wheel, the belt wheel shell and the spring cover are combined, so that the outer diameter of the spring cover is not required to be designed according to the outer diameter of the belt wheel, only the outer diameter of the spring is required to be adapted to, the processing cost and the assembly cost are reduced, the design difficulty is reduced, and the follow-up maintenance is facilitated.
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 cross-sectional view of an engine decoupling pulley with a novel housing in an embodiment of the present invention;
fig. 2 is a first perspective view of a pulley shell in an embodiment of the present invention;
fig. 3 is a second perspective view of a pulley shell in an embodiment of the present invention;
fig. 4 is a first perspective view of a spring cover in an embodiment of the invention;
FIG. 5 is a second perspective view of the spring cover in an embodiment of the present invention;
fig. 6 is a front view of an engine decoupling pulley with a novel housing in an embodiment of the present invention.
Reference numerals of the above figures: 10. a pulley; 20. an actuator; 21. a first driving section; 22. a second driving section; 30. a pulley shell; 31. a first opening portion; 32. a first limiting part; 320. a first limiting surface; 321. a second limiting surface; 33. a second limiting part; 330. a third limiting surface; 331. a fourth limiting surface; 40. a spring cover; 41. a second opening portion; 42. a third limiting part; 420. a fifth limiting surface; 421. a sixth limiting surface; 43. a fourth limiting part; 430. a seventh limiting surface; 431. an eighth limiting surface; 50. a bearing; 60. a spring assembly; 61. a first spring; 62. a second spring; 63. an elastic guide sleeve; 70. and (7) oil sealing.
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.
It should be noted that the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.
This application engine decoupling zero band pulley with novel shell, through improving into three layer construction design with the shell that original band pulley and spring cap formed, band pulley shell and spring cap combine together promptly for the external diameter of spring cap need not the external diameter design according to the band pulley, only needs the external diameter that adapts to the spring, has reduced processing cost and assembly cost, has also reduced the degree of difficulty of design simultaneously, convenient follow-up maintenance.
The present invention will be described in detail with reference to the accompanying drawings 1 to 6 and the embodiments.
This embodiment the engine decoupling zero band pulley with novel shell for be connected with the bent axle, include:
a pulley 10, an actuator 20, a pulley shell 30, and a spring cover 40, said actuator 20 being disposed within said pulley 10 along a centerline thereof, a bearing 50 is arranged between the actuator 20 and the pulley shell 30, the actuator 20 is fixedly connected with the crankshaft and can rotate relative to the pulley 10, the pulley shell 30 and the spring cover 40, the pulley shell 30 is disposed inside along the circumference of the pulley 10 and rigidly connected to the inner wall of the top thereof, a first opening portion 31 is provided at one side of the pulley housing 30 in the circumferential direction, a second opening portion 41 is provided at one side of the spring cover 40 in the circumferential direction, the second opening portion 41 is embedded in the pulley shell 30 from the first opening portion 31, so that the spring cover 40 is rigidly connected with the inner wall of the top of the pulley shell 30, an annular cavity is formed between the pulley shell 30 and the spring cover 40, and a spring assembly 60 capable of doing telescopic and relaxing movement is arranged in the annular cavity.
With reference to fig. 1, 2, 3, 4, and 5, in the present embodiment, the engine decoupling pulley 10 with a novel housing is used for connecting with a crankshaft, and includes a pulley 10, an actuator 20, a pulley shell 30, and a spring cover 40. The pulley 10 may be circular. The actuator 20 is disposed within the pulley 10 along a centerline of the pulley 10. A bearing 50 is provided between the actuator 20 and the pulley shell 30 to allow the actuator 20 to rotate relative to the pulley shell 30. The actuator 20 is fixedly connected to the crankshaft and is rotatable relative to the pulley 10, the pulley shell 30 and the spring cover 40. The pulley shell 30 is disposed inside the pulley 10 along the circumferential direction thereof and rigidly connected to the inner wall of the top thereof. A first opening 31 is provided at one circumferential side of the pulley shell 30. A second opening 41 is provided at one side of the spring cover 40 in the circumferential direction. The second opening 41 is embedded in the pulley shell 30 from the first opening 31, so that the spring cover 40 is rigidly connected to the inner wall of the top of the pulley shell 30. An annular cavity is formed between the pulley shell 30 and the spring cover 40. A spring assembly 60 capable of performing telescopic rotary motion is arranged in the annular cavity. The actuator 20 can compress the spring assembly 60 to compress or relax, thereby filtering out the rotational speed fluctuations.
Specifically, in the present embodiment, the actuator 20 is provided with a first driving portion 21 and a second driving portion 22 on both sides in the axial direction thereof, respectively. The first driving portion 21 is inserted into the pulley housing 30 through the first opening 31 and can be abutted against the first spring 61. The second driving portion 22 is inserted into the pulley housing 30 through the first opening 31 and can be in contact with the second spring 62. The driving part can be pressed on the spring assembly 60, and transmits torsional moment to the belt wheel 10, the belt wheel shell 30 and the spring cover 40 through the spring to drive the accessories to operate. During crankshaft speed fluctuations, the spring assembly 60 can rotate in a clockwise or counterclockwise direction to compress or relax the spring assembly 60, thereby filtering out the speed fluctuations generated by the drive shaft, maintaining the smoothness of the drive pulley 10 and the drive pulley 10 system and reducing the impact thereof on the accessory system.
Referring to fig. 2 and 3, in the present embodiment, a first position-limiting portion 32 and a second position-limiting portion 33 are respectively disposed on an inner wall of the pulley shell 30 opposite to the first opening portion 31. The first position-limiting portion 32 is provided with a first position-limiting surface 320 and a second position-limiting surface 321 along two circumferential sides. The second position-limiting portion 33 is provided with a third position-limiting surface 330 and a fourth position-limiting surface 331 along two circumferential sides.
Referring to fig. 4 and 5 in particular, in the present embodiment, a third position-limiting portion 42 and a fourth position-limiting portion 43 are respectively disposed on the inner wall of the spring cover 40 opposite to the second opening portion 41. The third limiting portion 42 is provided with a fifth limiting surface 420 and a sixth limiting surface 421 along two circumferential sides, and the fourth limiting portion 43 is provided with a seventh limiting surface 430 and an eighth limiting surface 431 along two circumferential sides.
The limiting surface between the pulley housing 30 and the spring cover 40 is used to limit the rotation angle range of the first spring 61 and the second spring 62, so that the first spring 61 and the second spring 62 can extend and rotate in the sub-space.
Specifically, in the present embodiment, the spring assembly 60 includes a first spring 61 and a second spring 62. The first spring 61 and the second spring 62 are both arc-shaped springs. Elastic guide sleeves 63 are respectively sleeved at two ends of the first spring 61 and the second spring 62 to prevent noise generated when the first driving part 21 and the second driving part 22 respectively directly compress the first spring 61 and the second spring 62. The elastic guide sleeve 63 may be made of plastic.
Specifically, in the present embodiment, the bearing 50 is a sliding bearing 50 or a rolling bearing 50.
Specifically, in this embodiment, the pulley 10, the pulley shell 30 and the spring cover 40 are fixedly connected by interference fit.
In an alternative embodiment, the pulley 10, the pulley shell 30 and the spring cover 40 are fixedly connected by bolts.
Specifically, in this embodiment, the engine decoupling pulley 10 with the novel housing further includes an oil seal 70 disposed between the spring cover 40 and the actuator 20 to seal the lubricating grease filled in the first spring 61 and the second spring 62.
The utility model discloses the principle and the implementation mode of the utility model are explained by applying the concrete embodiment, and the explanation of the above embodiment is only used for helping to understand the technical scheme and the core idea of the utility model; 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 (10)
1. An engine decoupling pulley having a novel outer shell for connection with a crankshaft, comprising:
the actuator is arranged in the pulley shell along the central line of the pulley, a bearing is arranged between the actuator and the pulley shell, the actuator is fixedly connected with the crankshaft and can rotate relative to the pulley, the pulley shell and the spring cover, the pulley shell is arranged in the pulley shell along the circumferential direction of the pulley and is rigidly connected with the inner wall of the top of the pulley shell, a first opening portion is arranged on one circumferential side of the pulley shell, a second opening portion is arranged on one circumferential side of the spring cover, the second opening portion is embedded in the pulley shell from the first opening portion so that the spring cover is rigidly connected with the inner wall of the top of the pulley shell, an annular cavity is formed between the pulley shell and the spring cover, and a spring assembly capable of doing telescopic and relaxing movement is arranged in the annular cavity.
2. The engine decoupling pulley with the novel housing of claim 1, wherein said actuator is provided with a first driving portion and a second driving portion along two axial sides thereof, and said first driving portion and said second driving portion are respectively inserted into said pulley shell from said first opening portion and can abut against said spring assembly.
3. The engine decoupling pulley with the novel outer casing as claimed in claim 1, wherein a first limiting portion and a second limiting portion are respectively and oppositely arranged on the inner wall of the pulley shell opposite to the first opening portion.
4. The engine decoupling pulley with the novel outer shell as claimed in claim 3, wherein the first limiting portion is provided with a first limiting surface and a second limiting surface along two circumferential sides, and the second limiting portion is provided with a third limiting surface and a fourth limiting surface along two circumferential sides.
5. The engine decoupling pulley with the novel housing of claim 1, wherein a third limiting portion and a fourth limiting portion are respectively disposed on the inner wall of the spring cover opposite to the second opening portion.
6. The engine decoupling pulley with the novel housing of claim 5, wherein the third limiting portion is provided with a fifth limiting surface and a sixth limiting surface on two sides in the circumferential direction, and the fourth limiting portion is provided with a seventh limiting surface and an eighth limiting surface on two sides in the circumferential direction.
7. The engine decoupling pulley with the novel housing of claim 1, wherein the spring assembly comprises a first spring and a second spring, the first spring and the second spring are both arc springs, and two ends of the first spring and the second spring are respectively sleeved with elastic guide sleeves.
8. The engine decoupler pulley with the novel housing of claim 1, wherein the bearing is a sliding or rolling bearing.
9. The engine decoupling pulley with the novel outer casing of claim 1, wherein the pulley, the pulley shell and the spring cover are fixedly connected by interference fit or bolt connection.
10. The engine decoupler pulley with the novel housing of claim 7 further comprising an oil seal disposed between the spring cover and the actuator to seal grease filling the first and second springs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123371759.5U CN217152889U (en) | 2021-12-29 | 2021-12-29 | Engine decoupling belt wheel with novel shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123371759.5U CN217152889U (en) | 2021-12-29 | 2021-12-29 | Engine decoupling belt wheel with novel shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217152889U true CN217152889U (en) | 2022-08-09 |
Family
ID=82687377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123371759.5U Active CN217152889U (en) | 2021-12-29 | 2021-12-29 | Engine decoupling belt wheel with novel shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217152889U (en) |
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2021
- 2021-12-29 CN CN202123371759.5U patent/CN217152889U/en active Active
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| 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. |