CN220488231U - Noise reduction crankshaft sprocket - Google Patents
Noise reduction crankshaft sprocket Download PDFInfo
- Publication number
- CN220488231U CN220488231U CN202321546473.2U CN202321546473U CN220488231U CN 220488231 U CN220488231 U CN 220488231U CN 202321546473 U CN202321546473 U CN 202321546473U CN 220488231 U CN220488231 U CN 220488231U
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- sleeve
- annular pressing
- pressing plate
- shaft sleeve
- noise
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- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 238000001746 injection moulding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 4
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
The utility model relates to a noise-reducing crankshaft sprocket which comprises a sprocket main body, wherein the sprocket main body comprises a shaft sleeve and a gear ring, two ends of the shaft sleeve are respectively provided with a group of noise-reducing mechanisms, and the two groups of noise-reducing mechanisms are respectively positioned at two sides of the gear ring; each group of noise reduction mechanism comprises an annular pressing plate and a rubber sleeve, wherein the rubber sleeve comprises a sleeve sleeved on the outer wall of the shaft sleeve, one end of the sleeve is contacted with the gear ring, the other end of the sleeve is connected with an annular pressing edge, the annular pressing edge covers the outer edge of the end face of the shaft sleeve, and a plurality of positioning holes distributed along the circumferential direction of the sleeve are formed in the sleeve; the annular pressing plate is provided with a plurality of positioning rods distributed along the circumferential direction of the annular pressing plate, and each positioning rod is correspondingly inserted into one positioning hole. The rubber sleeve is sleeved on the outer wall of the shaft sleeve and is matched with the positioning hole in a plugging manner and the limit of the annular pressing plate to realize the fixation of the rubber sleeve, so that the situation that the rubber sleeve is turned and falls off in the operation process is avoided, and meanwhile, the operation noise can be effectively reduced through the rubber sleeve contact chain.
Description
Technical Field
The utility model relates to a chain wheel, in particular to a noise reduction crankshaft chain wheel.
Background
The sprocket is a cog sprocket wheel for meshing with precisely pitched blocks on links or cables. The chain wheel is widely applied to mechanical transmission in industries such as chemical industry, textile machinery, escalator, wood processing, three-dimensional parking garage, agricultural machinery, food processing, instrument and instrument, petroleum and the like.
When the crankshaft sprocket is in operation, the chain contacts the shaft sleeve of the crankshaft sprocket to generate noise, and in order to reduce operation noise, the original solution is as follows: the two ends of the shaft sleeve are respectively sleeved with the rubber sleeve, and the rubber sleeve contacts with the chain to reduce running noise.
Based on the technical problems, the inventor provides a noise reduction crankshaft chain wheel, which can effectively avoid the situation that a rubber sleeve rotates and falls off, and can effectively reduce running noise.
Disclosure of Invention
The utility model provides a noise reduction crankshaft sprocket, which aims at the defects of the prior art.
The utility model is realized by the following technical scheme, and provides a noise-reducing crankshaft sprocket which comprises a sprocket main body, wherein the sprocket main body comprises a shaft sleeve and a gear ring, two ends of the shaft sleeve are respectively provided with a group of noise-reducing mechanisms, and the two groups of noise-reducing mechanisms are respectively positioned at two sides of the gear ring; each group of noise reduction mechanism comprises an annular pressing plate and a rubber sleeve, wherein the rubber sleeve comprises a sleeve sleeved on the outer wall of the shaft sleeve, one end of the sleeve is contacted with the gear ring, the other end of the sleeve is connected with an annular pressing edge, the annular pressing edge covers the outer edge of the end face of the shaft sleeve, and a plurality of positioning holes distributed along the circumferential direction of the sleeve are formed in the sleeve; the annular pressing plate is provided with a plurality of positioning rods distributed along the circumferential direction of the annular pressing plate, each positioning rod is correspondingly inserted into one positioning hole, and the annular pressing plate compresses the annular pressing edge and is connected with the end face of the shaft sleeve.
Preferably, a plurality of mounting holes distributed along the circumferential direction of the annular pressing plate are formed in the annular pressing plate, threaded holes corresponding to the mounting holes are formed in the end face of the shaft sleeve respectively, and bolts penetrate through the mounting holes and are in threaded connection with the threaded holes.
Preferably, in order to enable the annular pressing plate to be matched with the annular pressing edge better, a shoulder matched with the annular pressing edge is arranged on the annular pressing plate. The annular pressing edge is just pressed by the shoulder position, so that the fixing effect is enhanced.
Preferably, the sleeve and the annular blank holder are made of rubber materials, and the sleeve and the annular blank holder are of an injection molding integrated structure.
Preferably, in order to promote the effect of avoiding the turning round, be equipped with a plurality of first spacing bosss along its circumference distribution on the axle sleeve outer wall, be equipped with a plurality of second spacing bosss along its circumference distribution on telescopic inner wall, first spacing boss and the spacing setting of second spacing boss interval. The first limiting boss and the second limiting boss are matched to play a limiting role, so that the turning is avoided.
The beneficial effects of the utility model are as follows:
the rubber sleeve is sleeved on the outer wall of the shaft sleeve and is matched with the positioning hole in a plugging manner and the limit of the annular pressing plate to realize the fixation of the rubber sleeve, so that the situation that the rubber sleeve is turned and falls off in the operation process is avoided, and meanwhile, the operation noise can be effectively reduced through the rubber sleeve contact chain. After the annular pressing plate is removed, the rubber sleeve can be replaced conveniently.
Drawings
FIG. 1 is a front view of a rubber boot of the present utility model;
FIG. 2 is a front view of the annular platen of the present utility model;
FIG. 3 is a front elevational view of the sprocket body of the present utility model;
FIG. 4 is an elevation view of the rubber sleeve of the present utility model in assembled relation with the sprocket body;
FIG. 5 is a general sectional view of the present utility model;
the figure shows:
1. sleeve, 2, annular blank holder, 3, locating hole, 4, second spacing boss, 5, annular clamp plate, 6, locating lever, 7, mounting hole, 8, ring gear, 9, screw hole, 10, first spacing boss, 11, bolt, 12, axle sleeve, 13, lean on the shoulder.
Detailed Description
In order to clearly illustrate the technical characteristics of the scheme, the scheme is explained below through a specific embodiment.
As shown in fig. 1-5, the utility model comprises a sprocket main body, wherein the sprocket main body comprises a shaft sleeve 12 and a gear ring 8, two ends of the shaft sleeve 12 are respectively provided with a group of noise reduction mechanisms, and the two groups of noise reduction mechanisms are respectively positioned at two sides of the gear ring 8. Each group of noise reduction mechanism comprises an annular pressing plate 5 and a rubber sleeve, the rubber sleeve comprises a sleeve 1 sleeved on the outer wall of a shaft sleeve 12, one end of the sleeve 1 is contacted with a gear ring 8, the other end of the sleeve is connected with an annular pressing edge 2, the annular pressing edge 2 covers the outer edge of the end face of the shaft sleeve 12, and a plurality of positioning holes 3 distributed along the circumferential direction of the sleeve 1 are formed in the sleeve 1. A plurality of positioning rods 6 distributed along the circumferential direction of the annular pressing plate 5 are arranged on the annular pressing plate 5, each positioning rod 6 is correspondingly inserted into one positioning hole 3, and the annular pressing plate 5 presses the annular pressing edge 2 and is connected with the end face of the shaft sleeve 12. The rubber sleeve is sleeved on the outer wall of the shaft sleeve 12 and is matched with the positioning hole 3 in a plugging manner through the positioning rod 6 and is tightly pressed by the annular pressing plate 5, so that the situation that the rubber sleeve is turned and falls off in the operation process is avoided, and meanwhile, the operation noise can be effectively reduced through the rubber sleeve contact chain. After the annular pressing plate 5 is removed, the rubber sleeve can be replaced conveniently.
In the present embodiment, a plurality of mounting holes 7 distributed along the circumferential direction are provided on the annular pressure plate 5, screw holes 9 corresponding to each mounting hole 7 are provided on the end face of the sleeve 12, and bolts 11 pass through the mounting holes 7 and are screwed with the screw holes 9.
In this embodiment, in order to make the annular pressing plate 5 better fit with the annular pressing edge 2, a shoulder rest 13 that fits with the annular pressing edge 2 is provided on the annular pressing plate 5. The shoulder 13 just presses the annular pressing edge 2, so that the fixing effect is enhanced.
In this embodiment, the sleeve 1 and the annular blank holder 2 are made of rubber, and the sleeve 1 and the annular blank holder 2 are of an injection molding integrated structure.
In this embodiment, in order to improve the effect of avoiding the turning, a plurality of first limiting bosses 10 distributed along the circumferential direction are provided on the outer wall of the sleeve 12, and a plurality of second limiting bosses 4 distributed along the circumferential direction are provided on the inner wall of the sleeve 1, as shown in fig. 4, and the first limiting bosses 10 and the second limiting bosses 4 are arranged at intervals. The first limiting boss 10 and the second limiting boss 4 are matched to play a limiting role, so that the turning is avoided.
Of course, the above description is not limited to the above examples, and the technical features of the present utility model that are not described may be implemented by or by using the prior art, which is not described herein again; the above examples and drawings are only for illustrating the technical scheme of the present utility model and not for limiting the same, and the present utility model has been described in detail with reference to the preferred embodiments, and it should be understood by those skilled in the art that changes, modifications, additions or substitutions made by those skilled in the art without departing from the spirit of the present utility model and the scope of the appended claims.
Claims (5)
1. The utility model provides a crankshaft sprocket falls to make an uproar which characterized in that: the chain wheel comprises a chain wheel main body, wherein the chain wheel main body comprises a shaft sleeve and a gear ring, two ends of the shaft sleeve are respectively provided with a group of noise reduction mechanisms, and the two groups of noise reduction mechanisms are respectively positioned at two sides of the gear ring; each group of noise reduction mechanism comprises an annular pressing plate and a rubber sleeve, wherein the rubber sleeve comprises a sleeve sleeved on the outer wall of the shaft sleeve, one end of the sleeve is contacted with the gear ring, the other end of the sleeve is connected with an annular pressing edge, the annular pressing edge covers the outer edge of the end face of the shaft sleeve, and a plurality of positioning holes distributed along the circumferential direction of the sleeve are formed in the sleeve; the annular pressing plate is provided with a plurality of positioning rods distributed along the circumferential direction of the annular pressing plate, each positioning rod is correspondingly inserted into one positioning hole, and the annular pressing plate compresses the annular pressing edge and is connected with the end face of the shaft sleeve.
2. A noise reducing crankshaft sprocket as defined in claim 1, wherein: the annular pressing plate is provided with a plurality of mounting holes distributed along the circumferential direction of the annular pressing plate, the end face of the shaft sleeve is provided with threaded holes corresponding to the mounting holes respectively, and the bolts penetrate through the mounting holes and are in threaded connection with the threaded holes.
3. A noise reducing crankshaft sprocket as defined in claim 2, wherein: the annular pressing plate is provided with a shoulder rest matched with the annular pressing edge.
4. A noise reducing crankshaft sprocket as defined in claim 1, wherein: the sleeve and the annular blank holder are made of rubber, and are of an injection molding integrated structure.
5. A noise reducing crankshaft sprocket as defined in claim 1, wherein: the sleeve is characterized in that a plurality of first limiting bosses distributed along the circumferential direction of the sleeve are arranged on the outer wall of the sleeve, a plurality of second limiting bosses distributed along the circumferential direction of the sleeve are arranged on the inner wall of the sleeve, and the first limiting bosses and the second limiting bosses are arranged at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321546473.2U CN220488231U (en) | 2023-06-16 | 2023-06-16 | Noise reduction crankshaft sprocket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321546473.2U CN220488231U (en) | 2023-06-16 | 2023-06-16 | Noise reduction crankshaft sprocket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220488231U true CN220488231U (en) | 2024-02-13 |
Family
ID=89839372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321546473.2U Active CN220488231U (en) | 2023-06-16 | 2023-06-16 | Noise reduction crankshaft sprocket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220488231U (en) |
-
2023
- 2023-06-16 CN CN202321546473.2U patent/CN220488231U/en active Active
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