CN210637475U - Starter crankshaft gear assembly - Google Patents
Starter crankshaft gear assembly Download PDFInfo
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- CN210637475U CN210637475U CN201921635273.8U CN201921635273U CN210637475U CN 210637475 U CN210637475 U CN 210637475U CN 201921635273 U CN201921635273 U CN 201921635273U CN 210637475 U CN210637475 U CN 210637475U
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- starter
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Abstract
The utility model provides a starter crankshaft gear assembly belongs to mechanical technical field. It has solved the comparatively complicated and comparatively inconvenient problem of assembly of current starter crankshaft gear assembly structure. This starter crankshaft gear assembly, including the gear body, the middle part of gear body is equipped with the connecting portion of tube-shape, is equipped with the transmission cover of tube-shape in the connecting portion, is equipped with a plurality of convex bodies on the lateral wall of transmission cover, and the inside wall of connecting portion is equipped with mounting groove and convex body and inlays in the mounting groove, and the one end that all is equipped with hard spring and hard spring in the mounting groove supports and leans on the lateral wall of convex body, and the other end of hard spring supports and leans on in. This starter crankshaft gear assembly has better buffering effect and longer advantage of life.
Description
Technical Field
The utility model belongs to the technical field of machinery, a crankshaft gear assembly, especially a starter crankshaft gear assembly are related to.
Background
The engine is widely used in various fields, and through development, the internal combustion engine is widely used at present, and also comprises a gas turbine, and the gasoline engine and the diesel engine are the most typical internal combustion engines and are also widely used.
The gasoline engine and the diesel engine are widely applied to agricultural implements, such as a small-sized cultivator, the starting of the existing gasoline engine and the existing diesel engine comprises motor starting and mechanical starting, a hand-pull starter is generally adopted in the mechanical starting, the hand-pull starter comprises a handle, a pull rope, a rotating disc driven by the pull rope and a return spring for returning the pull rope, and the starting mode can finish the starting of the engine, but is extremely labor-consuming and inconvenient to use; although the motor starting can be competent, the storage battery is needed to provide ignition energy, the storage battery is high in cost, and the storage battery is short in service life in various aspects in the actual use process, so that the motor starter cannot complete the starting work, is not easy to install and is low in efficiency. In any starter, a crank gear is required to transmit torque.
The combined crankshaft gear (application number: 201510937255.5) disclosed in the Chinese patent document comprises a gear disc and a rack disc, wherein the gear disc is provided with a mounting groove, the rack disc is provided with a clamping protrusion, the clamping protrusion is mounted on the mounting groove in a matched manner, the gear disc is provided with a plurality of fastening studs, the upper side and the lower side of each fastening stud are respectively and movably connected with an upper pressing plate and a lower pressing plate, and the gear disc and the rack disc are pressed tightly through the fastening studs by the upper pressing plate and the lower pressing plate. But the structure of this combination formula crankshaft gear is comparatively complicated and the assembly is comparatively inconvenient.
Disclosure of Invention
The utility model aims at having above-mentioned problem to current technique, having better buffering effect and the longer starter crankshaft gear assembly of life when having proposed a start.
The purpose of the utility model can be realized by the following technical proposal: starter crankshaft gear assembly, including the gear body, the middle part of gear body be equipped with the connecting portion of tube-shape, connecting portion in be equipped with the transmission cover of tube-shape, its characterized in that, the lateral wall of transmission cover on be equipped with a plurality of convex bodies, the inside wall of connecting portion be equipped with the mounting groove just the convex body inlay in the mounting groove, the mounting groove in all be equipped with hard spring just the one end of hard spring support and lean on the lateral wall of convex body on, the other end of hard spring support and lean on in the mounting groove.
The transmission sleeve is fixedly connected with the transmission shaft, and the two ends of the hard spring are respectively abutted against the mounting groove and the convex body, so that when the transmission shaft transmits torque to the gear body through the transmission sleeve during working, the hard spring can enable a good buffering effect to be achieved between the gear body and the transmission sleeve, the service life of the crankshaft gear assembly is prolonged, and the crankshaft gear assembly has the advantage of stable working.
In the starter crankshaft gear assembly, two hard springs are positioned in the mounting groove, the two hard springs are respectively positioned on two sides of the convex body, and two ends of each hard spring are respectively abutted against the convex body and the inner side wall of the mounting groove. The mounting groove is internally provided with two hard springs which are respectively arranged at two sides of the convex body, so that the positive rotation and the negative rotation of the transmission sleeve have better buffering effect, and the working stability is improved.
In the starter crankshaft gear assembly, one end of the connecting part is fixedly connected with a coaxial annular cover body in a threaded manner, and the hard spring and the convex body are positioned on the inner side of the cover body. Through the lid with hard spring location in the mounting groove, have the better and comparatively convenient advantage of dismouting of location effect.
In the starter crankshaft gear assembly, the inner side wall of the transmission sleeve is provided with a spiral lubricating groove. The inside wall through the driving sleeve again sets up foretell lubrication groove, can lubricate driving sleeve and transmission shaft, has improved transmission efficiency and has increased the life-span.
In the starter crankshaft gear assembly, the outer side wall of the connecting part is provided with a limiting groove. Through setting up foretell spacing groove, have better spacing benchmark when the installation.
In the starter crankshaft gear assembly, the convex body is a stud which is arranged in a penetrating way and is connected to the transmission sleeve in a threaded way, and the outer end of the stud extends out of the outer side wall of the transmission sleeve. The convex body adopts a stud, and has the advantages of convenient manufacture and compact structure.
In the starter crankshaft gear assembly, a plurality of through lightening holes are formed in the side portion of the gear body, and the lightening holes are uniformly arranged by taking the axis of the gear body as the center.
In the starter crankshaft gear assembly, a small lightening hole is arranged between two adjacent lightening holes, and the distance from the center of the small lightening hole to the center of the gear body is smaller than the distance from the center of the lightening hole to the center of the gear body. By adopting the arrangement, the weight of the gear body can be effectively reduced, and the stability of the gear body is increased.
Compared with the prior art, this starter crankshaft gear assembly has following advantage:
1. when the transmission shaft transmits torque to the gear body through the transmission sleeve, the hard spring can enable the gear body and the transmission sleeve to have a good buffering effect, the service life of the crankshaft gear assembly is prolonged, and meanwhile, the crankshaft gear assembly has the advantage of being stable in work;
2. two hard springs respectively arranged at two sides of the convex body are arranged in the mounting groove, so that the forward rotation and the reverse rotation of the transmission sleeve have good buffering effects, and the working stability is improved;
3. through the lid with hard spring location in the mounting groove, have the better and comparatively convenient advantage of dismouting of location effect.
Drawings
Fig. 1 is a perspective view of the starter crank gear assembly.
Fig. 2 is a schematic cross-sectional view of the starter crank gear assembly.
In the figure, 1, a gear body; 1a, a connecting part; 1b, mounting grooves; 1c, lightening holes; 1d, small lightening holes; 1e, a limiting groove; 2. a transmission sleeve; 2a, convex bodies; 2b, a lubricating groove; 3. a stiff spring; 4. a cover body.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1 and 2, starter crankshaft gear assembly, including gear body 1, gear body 1's middle part is equipped with the connecting portion 1a of tube-shape, be equipped with the transmission cover 2 of tube-shape in the connecting portion 1a, its characterized in that, be equipped with a plurality of convex bodies 2a on the lateral wall of transmission cover 2, the inside wall of connecting portion 1a is equipped with mounting groove 1b and convex body 2a inlays in mounting groove 1b, the one end that all is equipped with firm spring 3 and firm spring 3 in mounting groove 1b supports and leans on the lateral wall of convex body 2a, the other end of firm spring 3 supports and leans on in mounting groove 1 b. All be located two firm springs 3 in mounting groove 1b, two firm springs 3 are located the both sides of convex body 2a respectively, and the both ends of firm spring 3 are equallyd divide and are leaned on respectively on convex body 2a and the inside wall of mounting groove 1 b. One end of the connecting part 1a is fixedly connected with a coaxial annular cover body 4 in a threaded manner, and the hard spring 3 and the convex body 2a are positioned on the inner side of the cover body 4, so that the positioning device has the advantages of good positioning effect and convenience in disassembly and assembly.
The inner side wall of the transmission sleeve 2 is provided with a spiral lubricating groove 2 b. The lateral wall of connecting portion 1a is equipped with spacing groove 1e, has better spacing benchmark when the installation. As another mode, the convex body 2a penetrates through a stud which is in threaded connection with the transmission sleeve 2, and the outer end of the stud extends out of the outer side wall of the transmission sleeve 2, so that the device has the advantages of convenience in manufacturing and compact structure.
The side part of the gear body 1 is provided with a plurality of through lightening holes 1c, and the lightening holes 1c are uniformly arranged by taking the axis of the gear body 1 as the center. And a small lightening hole 1d is arranged between two adjacent lightening holes 1c, and the distance from the center of the small lightening hole 1d to the center of the gear body 1 is smaller than the distance from the center of the lightening hole 1c to the center of the gear body 1, so that the weight of the gear body 1 can be effectively lightened, and the stability of the gear body 1 is improved.
The transmission sleeve 2 is fixedly connected with the transmission shaft, because the two ends of the hard spring 3 are respectively supported on the mounting groove 1b and the convex body 2a, when the transmission shaft transmits torque to the gear body 1 through the transmission sleeve 2, the hard spring 3 can enable the gear body 1 and the transmission sleeve 2 to have a better buffering effect, two hard springs 3 which are respectively arranged on two sides of the convex body 2a are arranged in the mounting groove 1b, the positive rotation and the reverse rotation of the transmission sleeve 2 have a better buffering effect, the working stability is improved, and the service life of the crankshaft gear assembly is prolonged. The inside wall through driving sleeve 2 sets up foretell lubrication groove 2b again, can lubricate driving sleeve 2 and transmission shaft, has improved transmission efficiency and has increased the life-span.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the terms of the gear body 1, the connecting portion 1a, the mounting groove 1b, the lightening hole 1c, the small lightening hole 1d, the limiting groove 1e, the transmission sleeve 2, the convex body 2a, the lubricating groove 2b, the hard spring 3, the cover body 4, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
Claims (8)
1. Starter crankshaft gear assembly, including gear body (1), the middle part of gear body (1) be equipped with connecting portion (1a) of tube-shape, connecting portion (1a) in be equipped with transmission sleeve (2) of tube-shape, its characterized in that, the lateral wall of transmission sleeve (2) on be equipped with a plurality of convex bodies (2a), the inside wall of connecting portion (1a) be equipped with mounting groove (1b) just convex body (2a) inlay in mounting groove (1b), mounting groove (1b) in all be equipped with firm spring (3) just the one end of firm spring (3) support and lean on the lateral wall of convex body (2a), the other end of firm spring (3) support and lean on in mounting groove (1 b).
2. Starter crank gear assembly according to claim 1 characterized in that two stiff springs (3) are positioned in the mounting groove (1b), two stiff springs (3) being located on each side of the boss (2a) and the stiff springs (3) abutting on each side the boss (2a) and the inner side wall of the mounting groove (1 b).
3. The starter crankshaft gear assembly according to claim 1, characterized in that one end of the connecting part (1a) is screwed and connected with a coaxially arranged ring-shaped cover body (4), and the hard spring (3) and the convex body (2a) are positioned at the inner side of the cover body (4).
4. Starter crank gear assembly according to claim 1, 2 or 3, characterized in that the inner side wall of the driving sleeve (2) is provided with helical lubrication grooves (2 b).
5. The starter crank gear assembly according to claim 1, 2 or 3, characterized in that the outer side wall of the connecting part (1a) is provided with a limiting groove (1 e).
6. The starter crankshaft gear assembly according to claim 1, 2 or 3, characterized in that the convex body (2a) is inserted and screwed into a stud on the driving sleeve (2), and the outer end of the stud extends out of the outer side wall of the driving sleeve (2).
7. Starter crank gear assembly according to claim 1, 2 or 3, characterized in that the side of the gear body (1) is provided with a number of through lightening holes (1c) and that the lightening holes (1c) are evenly arranged centered on the axis of the gear body (1).
8. The starter crankshaft gear assembly according to claim 7, characterized in that a small lightening hole (1d) is arranged between two adjacent lightening holes (1c) and the distance from the center of the small lightening hole (1d) to the center of the gear body (1) is smaller than the distance from the center of the lightening hole (1c) to the center of the gear body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921635273.8U CN210637475U (en) | 2019-09-27 | 2019-09-27 | Starter crankshaft gear assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921635273.8U CN210637475U (en) | 2019-09-27 | 2019-09-27 | Starter crankshaft gear assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210637475U true CN210637475U (en) | 2020-05-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921635273.8U Active CN210637475U (en) | 2019-09-27 | 2019-09-27 | Starter crankshaft gear assembly |
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| CN (1) | CN210637475U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412678A (en) * | 2020-11-19 | 2021-02-26 | 浙江喜加吉科技股份有限公司 | Rewinding starter |
-
2019
- 2019-09-27 CN CN201921635273.8U patent/CN210637475U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412678A (en) * | 2020-11-19 | 2021-02-26 | 浙江喜加吉科技股份有限公司 | Rewinding starter |
| CN112412678B (en) * | 2020-11-19 | 2022-07-01 | 浙江喜加吉科技股份有限公司 | Rewinding starter |
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