CN221257452U - Sprocket fixing structure - Google Patents
Sprocket fixing structure Download PDFInfo
- Publication number
- CN221257452U CN221257452U CN202323170367.1U CN202323170367U CN221257452U CN 221257452 U CN221257452 U CN 221257452U CN 202323170367 U CN202323170367 U CN 202323170367U CN 221257452 U CN221257452 U CN 221257452U
- Authority
- CN
- China
- Prior art keywords
- guide sleeve
- chain wheel
- sprocket
- fixing structure
- sealing guide
- 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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Links
- 238000007789 sealing Methods 0.000 claims abstract description 50
- 239000010687 lubricating oil Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000003068 static effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- General Details Of Gearings (AREA)
Abstract
The utility model discloses a chain wheel fixing structure, and relates to the technical field of chain wheel fixing. The chain wheel fixing structure comprises an output gear shaft, a bearing, a sealing guide sleeve and a chain wheel; the bearing, the sealing guide sleeve and the chain wheel are sequentially sleeved on the shaft extension end of the output gear shaft; an O-shaped ring is arranged in the sealing guide sleeve; two ends of the sealing guide sleeve respectively abut against the bearing and the chain wheel; the sprocket is provided with a locking member for locking in the axial direction. The chain wheel fixing structure disclosed by the utility model has the advantages that the stability of the chain wheel is improved, the chain wheel is ensured not to swing left and right, the running process is stable, and the noise is low; and simultaneously, the leakage of lubricating oil is effectively prevented.
Description
Technical Field
The utility model relates to the technical field of chain wheel fixing, in particular to a chain wheel fixing structure.
Background
A sprocket is a mechanical element for transmitting power and motion, typically in a circular configuration, with a series of gears thereon. The sprocket is typically connected to a chain, through which power and motion are transferred from one shaft to the other shaft, to effect power transfer and mechanical motion. Sprockets and chains are commonly used in the fields of motorcycles, bicycles, industrial machinery, and the like.
The chain wheel is an important part of a motorcycle transmission system, and a motorcycle chain wheel is arranged on an output gear shaft and transmits power on the output gear shaft to a driven chain wheel on a rear wheel through a chain. At present, the sprocket adopts jump ring or locking plate to carry out axial spacing more, but adopts above-mentioned mode spacing back, and the sprocket exists axial clearance, therefore exists the horizontal hunting, leads to the sprocket operation unstable, the noise is big.
Disclosure of utility model
In order to solve the technical problems, the utility model provides a chain wheel fixing structure, which comprises an output gear shaft, a bearing, a sealing guide sleeve and a chain wheel; the bearing, the sealing guide sleeve and the chain wheel are sequentially sleeved on the shaft extension end of the output gear shaft; an O-shaped ring is arranged in the sealing guide sleeve; two ends of the sealing guide sleeve respectively abut against the bearing and the chain wheel; the sprocket is provided with a locking member for locking in the axial direction.
Further, an annular groove is formed in the inner wall of the sealing guide sleeve, and a triangular groove is formed in one end of an inner hole of the sealing guide sleeve; the annular groove and the triangular groove are respectively provided with an O-shaped ring.
Further, two ends of the sealing guide sleeve respectively lean against the bearing and the inner ring of the chain wheel.
Further, the locking piece is a locking screw, and the chain wheel is locked in the axial direction through the locking screw.
Further, a washer is further arranged between the chain wheel and the locking screw, and the locking screw locks the chain wheel on the output gear shaft in the axial direction through the washer.
Further, the gasket is butterfly-shaped; the flange surface of the locking screw is provided with a boss matched with the gasket.
Further, the device also comprises a gear box; the gear box comprises a gear box front cover and a gear box rear cover; the front cover of the gear box is provided with a shaft extension opening.
Further, the shaft extension end of the output gear shaft is rotatably supported between the front cover and the rear cover of the gear box through a bearing and extends out of the gear box through a shaft extension opening.
Further, the sealing guide sleeve is arranged outside the gear box; an oil seal is arranged between the sealing guide sleeve and the shaft extension port, and the oil jacket is arranged on the sealing guide sleeve.
Further, an external spline is arranged at the shaft extension end of the output gear shaft; the chain wheel is provided with an internal spline; the sprocket is sleeved on the output gear shaft through the matching of the external spline and the internal spline.
The utility model relates to a chain wheel fixing structure, in particular to a fixing structure applied to a chain wheel of a motorcycle.
The chain wheel is a gear installed on the motorcycle and drives the vehicle to move through the transmission of a chain and an engine.
The output gear shaft is a shaft for outputting power of the motorcycle engine, is connected with the chain wheel and the engine, is rotatably supported on the front cover of the gear box and the rear cover of the gear box through bearings, and extends out of the gear box through a shaft extension opening.
The sealing guide sleeve is sleeved on the shaft extension end of the output gear shaft and is positioned between the chain wheel and the output gear shaft, so that lubricating oil leakage is prevented, an axial locking support is provided, external substances such as liquid, gas or dust are prevented from entering the sealing guide sleeve, and the normal operation and the service life of internal parts are protected; the operation vibration and noise of mechanical equipment can be effectively reduced, the working stability of the equipment is improved, and the safety and comfort of the working environment are improved. The O-shaped ring is arranged in the sealing guide sleeve, so that the sealing effect can be further enhanced, leakage is prevented, friction and abrasion are reduced, and the service life of equipment is prolonged.
The gasket is butterfly-shaped and is positioned between the chain wheel and the locking screw, the contact area between the locking screw and the chain wheel is enlarged, the gasket is pressed on the chain wheel through the locking screw, and the chain wheel is pressed on the output gear shaft in the axial direction.
The locking screw compresses the chain wheel on the output gear shaft through the gasket; the flange surface of the locking screw is externally protruded with a step matched with the butterfly washer, and the chain wheel is tightly pressed by pushing the screw. The locking screw is adopted to effectively prevent loosening, so that the fastening stability and the safety are improved; the strength and stability of the fastening connection can be further improved by matching the locking screw with the gasket, and the load can be dispersed and the uneven surface can be compensated.
The shaft extension refers to a side of a machine or device that is used to connect and support a shaft for connection to other components or devices.
According to the chain wheel fixing structure, the sealing guide sleeve is additionally arranged between the bearing and the chain wheel, two ends of the sealing guide sleeve respectively abut against the bearing and the chain wheel, and the chain wheel is locked in the axial direction. Through this kind of sprocket fixed knot constructs, the sprocket can be fixed on the sprocket seat firmly in the use, and the sprocket can not the horizontal hunting in the operation, and it is steady to operate, noise abatement. Meanwhile, an O-shaped ring is arranged in the sealing guide sleeve to play a role of static sealing, so that lubricating oil is effectively prevented from leaking, and normal operation of equipment is ensured. The chain wheel fixing structure has the advantages of simple structure, convenient use, low maintenance cost and the like, and is suitable for various chain processing requirements.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an exploded view of an embodiment of the present utility model;
Fig. 2 is a cross-sectional view of an embodiment of the present utility model.
The figure identifies the description:
1-a sprocket; 2-outputting a gear shaft; 3-sealing the guide sleeve; 4-a gasket; 5-locking screws; a 6-O-shaped ring; 7-a bearing; 8-oil sealing; 9-a gearbox front cover; 10-rear cover of gear box.
Detailed Description
The technical solutions of the present utility model will be clearly and completely described in the following embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Examples
A chain wheel fixing structure comprises a gear box, an output gear shaft 2, a bearing 7, a sealing guide sleeve 3 and a chain wheel 1. The bearing 7, the sealing guide sleeve 3 and the chain wheel 1 are sequentially sleeved on the shaft extension end of the output gear shaft; both ends of the sealing guide sleeve 3 respectively abut against the bearing 7 and the sprocket wheel 1. Wherein an O-shaped ring 6 is arranged in the sealing guide sleeve 3; the sprocket 1 is provided with a lock for locking in the axial direction. The shaft extension end refers to a side for connecting and supporting a shaft for connection with other components or devices. The chain wheel fixing structure ensures that the chain wheel 1 can be firmly locked on the output gear shaft 2, ensures the normal operation of a chain and improves the stability of the chain wheel 1.
Specifically, an annular groove is formed in the inner wall of the sealing guide sleeve 3, and a triangular groove is formed in one end of an inner hole of the sealing guide sleeve 3; the annular groove and the triangular groove are both provided with O-shaped rings 6. By arranging two O-shaped rings 6 in the sealing guide sleeve 3, the double static sealing effect is achieved, and lubricating oil leakage can be effectively prevented. Both ends of the sealing guide sleeve 3 respectively abut against the sprocket wheel 1 and the inner ring of the bearing 7. In this embodiment, the locking member is a locking screw 5. The sprocket 1 is locked in the axial direction by a locking screw 5. Preferably, a washer 4 is also provided between the sprocket 1 and the locking screw 5, the locking screw 5 pressing the sprocket 1 against the output tooth shaft 2 in the axial direction via the washer 4. The washer 4 has a butterfly shape, and the locking screw 5 presses the sprocket 1 on the output tooth shaft 2 in the axial direction via the washer 4. Further technical proposal is that a boss matched with the inner hole of the gasket 4 is arranged on the flange surface of the locking screw 5.
The chain wheel fixing structure also comprises a gear box, wherein the gear box comprises a gear box front cover 9 and a gear box rear cover 10, and a shaft extension opening is formed in the gear box front cover 9. The shaft extension end of the output gear shaft 2 is rotatably supported between a gear box front cover 9 and a gear box rear cover 10 through a bearing 7, and extends to the outside of the gear box through a shaft extension opening. An oil seal 8 is arranged between the sealing guide sleeve 3 and the shaft extension port, and the oil seal 8 is sleeved on the sealing guide sleeve 3. The sealing guide sleeve 3 is sleeved on the shaft extension end of the output gear shaft 2 and is positioned between the chain wheel 1 and the output gear shaft 2, so that lubricating oil leakage can be prevented, and the support for axially locking the chain wheel 1 is provided.
The further technical scheme is that a bearing 7 is sleeved on the output gear shaft 2 and is positioned in the gear box, and a sealing guide sleeve 3 and a chain wheel 1 are sleeved on the output gear shaft 2 and are positioned outside the gear box. The preferable technical scheme is that an external spline is arranged at the shaft extension end of the output gear shaft 2; the chain wheel 1 is provided with an internal spline; the chain wheel 1 is sleeved on the output gear shaft 2 through the matching of the external spline and the internal spline.
In this embodiment, the output gear shaft 2 is a central shaft of the entire structure, and the bearing 7, the seal bush 3, and the sprocket 1 are connected to the output gear shaft 2. The bearing 7 supports the rotation of the output gear shaft, ensuring the normal operation of the sprocket 1. The arrangement of the sealing guide sleeve 3 ensures that the chain wheel 1 runs stably, reduces noise and prevents lubricating oil from leaking. The annular groove and the triangular groove in the sealing guide sleeve 3 provide double static sealing protection by arranging the O-shaped ring 6, so that the sealing effect is improved. The sprocket 1 is fastened on the output gear shaft 2 through the matching of the internal spline and the external spline, and is fixed through the compression of the locking screw 5 and the gasket 4, so that the firmness of the sprocket 1 is ensured. The oil seal 8 between the sealing guide sleeve 3 and the front cover 10 of the gearbox can effectively prevent the lubricating oil in the gearbox from leaking.
While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (10)
1. The chain wheel fixing structure is characterized by comprising an output gear shaft, a bearing, a sealing guide sleeve and a chain wheel; the bearing, the sealing guide sleeve and the chain wheel are sequentially sleeved on the shaft extension end of the output gear shaft; an O-shaped ring is arranged in the sealing guide sleeve; two ends of the sealing guide sleeve respectively abut against the bearing and the chain wheel; the sprocket is provided with a locking member for locking in the axial direction.
2. The sprocket fixing structure according to claim 1, wherein an annular groove is formed in an inner wall of the sealing guide sleeve, and a triangular groove is formed in one end of an inner hole of the sealing guide sleeve; the annular groove and the triangular groove are respectively provided with an O-shaped ring.
3. The sprocket fixing structure as set forth in claim 1, wherein said seal guide sleeve has opposite ends abutting against the bearing and the inner race of the sprocket, respectively.
4. The sprocket fixing structure as set forth in claim 1, wherein the locking member is a locking screw by which the sprocket is locked in an axial direction.
5. The sprocket fixing structure as set forth in claim 4, wherein a washer is further provided between the sprocket and the locking screw, the locking screw locking the sprocket to the output gear shaft in an axial direction through the washer.
6. The sprocket fixing structure as set forth in claim 5, wherein said cushion ring has a butterfly shape; the flange surface of the locking screw is provided with a boss matched with the gasket.
7. The sprocket fixing structure of claim 1, further comprising a gear box; the gear box comprises a gear box front cover and a gear box rear cover; the front cover of the gear box is provided with a shaft extension opening.
8. The sprocket fixing structure as set forth in claim 7, wherein the shaft extension end of the output gear shaft is rotatably supported between the front cover of the gear case and the rear cover of the gear case through a bearing and extends to the outside of the gear case through a shaft extension opening.
9. The sprocket fixing structure as set forth in claim 8, wherein said seal guide sleeve is disposed outside the gear case; an oil seal is arranged between the sealing guide sleeve and the shaft extension port, and the oil jacket is arranged on the sealing guide sleeve.
10. The sprocket fixing structure according to claim 1, wherein the shaft extension end of the output tooth shaft is provided with an external spline; the chain wheel is provided with an internal spline; the sprocket is sleeved on the output gear shaft through the matching of the external spline and the internal spline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323170367.1U CN221257452U (en) | 2023-11-23 | 2023-11-23 | Sprocket fixing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323170367.1U CN221257452U (en) | 2023-11-23 | 2023-11-23 | Sprocket fixing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221257452U true CN221257452U (en) | 2024-07-02 |
Family
ID=91660548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323170367.1U Active CN221257452U (en) | 2023-11-23 | 2023-11-23 | Sprocket fixing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221257452U (en) |
-
2023
- 2023-11-23 CN CN202323170367.1U patent/CN221257452U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |