CN220118591U - Double-row chain wheel structure capable of enhancing assembly friction force - Google Patents
Double-row chain wheel structure capable of enhancing assembly friction force Download PDFInfo
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- CN220118591U CN220118591U CN202321550316.9U CN202321550316U CN220118591U CN 220118591 U CN220118591 U CN 220118591U CN 202321550316 U CN202321550316 U CN 202321550316U CN 220118591 U CN220118591 U CN 220118591U
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- 230000002708 enhancing effect Effects 0.000 title claims abstract description 16
- 238000007788 roughening Methods 0.000 claims abstract description 64
- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 238000009434 installation Methods 0.000 claims description 8
- 238000004663 powder metallurgy Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to a double-row chain wheel structure capable of enhancing assembly friction force, which comprises a double-row chain wheel main body, wherein a first annular groove and a second annular groove are respectively formed on two end surfaces of the double-row chain wheel main body; a first roughening mechanism is arranged in the first annular groove and used for contacting with the lock nut, and comprises a first annular block embedded in the first annular groove and an annular roughening block fixed with the first annular block; and a second roughening mechanism which is used for being in contact with the boss of the transmission shaft is arranged in the second annular groove, the second roughening mechanism comprises a second annular block embedded in the second annular groove and a mounting block fixed with the second annular block, and a roughening ring is arranged on the mounting block. According to the utility model, the stability of the double-row chain wheel main body after assembly is greatly improved by the cooperation of the first roughening mechanism and the second roughening mechanism, so that the problem that the double-row chain wheel and the transmission shaft are easy to rotate circumferentially in transmission work is effectively avoided.
Description
Technical Field
The utility model relates to the technical field of chain wheel production, in particular to a double-row chain wheel structure capable of enhancing assembly friction force.
Background
The double row chain wheel is a double row gear tooth chain wheel, and is arranged on the transmission shaft when in use. At present, some mounting modes adopt the mode that the inner holes of the double-row chain wheels are sleeved on a transmission shaft, and then the double-row chain wheels are fixed through the cooperation of a boss and a locking nut on the transmission shaft. Because the two end surfaces of the double-row chain wheel are generally smooth surfaces, the friction force between the two end surfaces and the transmission shafts and the locking nuts on the two sides of the two end surfaces is small, after the double-row chain wheel installed by adopting the installation mode is assembled with the transmission shafts, the problem that the double-row chain wheel and the transmission shafts turn around in the circumferential direction easily occurs particularly in the transmission process, and the normal transmission work is influenced, so that a double-row chain wheel structure capable of enhancing the assembly friction force is urgently needed.
Disclosure of Invention
The utility model provides a double-row chain wheel structure capable of enhancing assembly friction force aiming at the defects of the prior art.
The utility model is realized by the following technical scheme, and provides a double-row chain wheel structure capable of enhancing assembly friction force, which comprises a double-row chain wheel main body, wherein a first annular groove and a second annular groove are respectively formed on two end surfaces of the double-row chain wheel main body; a first roughening mechanism is arranged in the first annular groove and used for contacting with the lock nut, and comprises a first annular block embedded in the first annular groove and an annular roughening block fixed with the first annular block; and a second roughening mechanism which is used for being in contact with the boss of the transmission shaft is arranged in the second annular groove, the second roughening mechanism comprises a second annular block embedded in the second annular groove and a mounting block fixed with the second annular block, and a roughening ring is arranged on the mounting block.
Preferably, the annular roughening block is located outside the first annular groove, and a plurality of shallow grooves are formed in the surface of the annular roughening block and are uniformly distributed along the circumferential direction of the surface of the annular roughening block.
Preferably, the first annular block is in an interference fit with the first annular groove.
Preferably, the first annular block and the annular roughened block are integrally formed by powder metallurgy.
Preferably, the mounting block is located outside the second annular groove, and a clamping groove for mounting the roughening ring is formed in the mounting block, and the width of a notch of the clamping groove is smaller than the width of the groove bottom.
Preferably, the second annular block is in an interference fit with the second annular groove.
Preferably, the roughening ring comprises an embedding part and a roughening part, the embedding part is embedded into the clamping groove, the roughening part is positioned outside the clamping groove, a plurality of strip protrusions are arranged on the surface of the roughening part, and the strip protrusions are uniformly distributed along the circumferential direction of the surface of the roughening part.
Preferably, the second annular block and the mounting block are integrally formed by powder metallurgy.
Preferably, the roughening ring is made of rubber.
The beneficial effects of the utility model are as follows:
the double-row chain wheel has a simple structure, the stability of the assembled double-row chain wheel main body is greatly improved by the cooperation of the first roughening mechanism and the second roughening mechanism, the problem that the double-row chain wheel and the transmission shaft are easy to rotate circumferentially in transmission work is effectively avoided, and normal transmission work is ensured.
Drawings
FIG. 1 is a schematic elevational view of the present utility model;
FIG. 2 is a schematic view of the cross-sectional structure of A-A of FIG. 1;
FIG. 3 is a schematic elevational view of the double row sprocket body of the present utility model;
FIG. 4 is a schematic view of the B-B cross-sectional structure of FIG. 3;
FIG. 5 is an enlarged schematic view of FIG. 2C;
FIG. 6 is a schematic view of the structure of the surface of the roughening part of the roughening ring according to the present utility model;
the figure shows:
1. double sprocket main part 2, first annular groove, 3, second annular groove, 4, first annular piece, 5, annular increase rough piece, 6, shallow slot, 7, second annular piece, 8, installation piece, 9, increase rough circle, 91, embedding portion, 92, increase rough portion, 93, rectangular arch.
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 to 4, the present utility model includes a double-row sprocket body 1, and a first annular groove 2 and a second annular groove 3 are respectively provided on both end surfaces of the double-row sprocket body 1.
Install in first annular groove 2 be used for with lock nut contact first rough mechanism, first rough mechanism is including embedding first annular piece 4 in the first annular groove 2 and with the fixed annular rough piece 5 of first annular piece 4, annular rough piece 5 is located outside the first annular groove 2, first annular piece 4 and first annular groove 2 interference fit, set up a plurality of shallow grooves 6 at annular rough piece 5 surface, shallow groove 6 is along annular rough piece 5 surface circumference evenly distributed. The shallow grooves 6 can enhance static friction force between the double-row chain wheel main body 1 and the lock nuts, and the first annular block 4 and the annular roughening block 5 are integrally formed by powder metallurgy. The annular roughening block 5 and the double-row chain wheel main body 1 are of split structures, so that shallow grooves 6 on the surface of the annular roughening block 5 are convenient to process, the production efficiency is improved, and the production cost is reduced.
A second roughening mechanism for contacting with the boss of the transmission shaft is installed in the second annular groove 3, and as shown in fig. 5, the second roughening mechanism comprises a second annular block 7 embedded in the second annular groove 3 and an installation block 8 fixed with the second annular block 7, and a roughening ring 9 is installed on the installation block 8. The installation piece 8 is located outside the second annular groove 3, and second annular piece 7 and second annular groove 3 interference fit set up the draw-in groove that is used for installing the roughening ring 9 on the installation piece 8, draw-in groove notch width is less than tank bottom width, roughening ring 9 includes embedded part 91 and roughening part 92, and embedded part 91 embeds the draw-in groove, and roughening part 92 is located outside the draw-in groove, as shown in fig. 6, sets up a plurality of rectangular protruding 93 at roughening part 92 surface, rectangular protruding 93 along roughening part 92 surface circumference evenly distributed. The second annular block 7 and the mounting block 8 are integrally formed by powder metallurgy. The mounting block 8 and the double-row chain wheel main body 1 are of a split structure, so that the clamping groove can be conveniently machined. In this embodiment, the roughening ring 9 is made of rubber, and the roughening ring 9 made of rubber can be conveniently embedded into the clamping groove on one hand, and on the other hand, the stability of the assembly of the double-row sprocket body 1 is enhanced through the deformation of the roughening ring and the strip protrusions 93 on the surface of the roughening part 92.
The strip protrusions 93 on the surface of the roughening part 92 can enhance static friction force between the double-row chain wheel main body 1 and a transmission shaft boss, further improve the stability of the double-row chain wheel main body 1 in rotation and avoid the double-row chain wheel main body 1 from rotating with the transmission shaft in the circumferential direction.
When the double-row chain wheel main body 1 is particularly used, the double-row chain wheel main body 1 is sleeved on a transmission shaft and locked through a locking nut, the surface of the roughening part 92 of the roughening ring 9 is contacted with a boss of the transmission shaft, and the annular roughening block 5 is contacted with the locking nut. The double-row chain wheel main body 1 is simple in structure, the stability of the double-row chain wheel main body 1 after assembly is greatly improved through the cooperation of the first roughening mechanism and the second roughening mechanism, the problem that the double-row chain wheel and a transmission shaft are easy to rotate circumferentially in transmission work is effectively avoided, and normal transmission work is ensured.
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 (9)
1. A double chain wheel structure capable of enhancing assembly friction force is characterized in that: the double-row chain wheel comprises a double-row chain wheel main body, wherein a first annular groove and a second annular groove are respectively formed on two end surfaces of the double-row chain wheel main body; a first roughening mechanism is arranged in the first annular groove and used for contacting with the lock nut, and comprises a first annular block embedded in the first annular groove and an annular roughening block fixed with the first annular block; and a second roughening mechanism which is used for being in contact with the boss of the transmission shaft is arranged in the second annular groove, the second roughening mechanism comprises a second annular block embedded in the second annular groove and a mounting block fixed with the second annular block, and a roughening ring is arranged on the mounting block.
2. A double row sprocket structure for enhancing assembly friction as set forth in claim 1, wherein: the annular roughening block is located outside the first annular groove, and a plurality of shallow grooves are formed in the surface of the annular roughening block and are evenly distributed along the circumferential direction of the surface of the annular roughening block.
3. A double row sprocket structure for enhancing assembly friction as set forth in claim 1, wherein: the first annular block is in interference fit with the first annular groove.
4. A double row sprocket structure for enhancing assembly friction as set forth in claim 1, wherein: the first annular block and the annular roughening block are integrally formed through powder metallurgy.
5. A double row sprocket structure for enhancing assembly friction as set forth in claim 1, wherein: the installation piece is located outside the second annular groove, sets up the draw-in groove that is used for installing the roughening circle on the installation piece, draw-in groove notch width is less than tank bottom width.
6. A double row sprocket structure for enhancing assembly friction as set forth in claim 1, wherein: the second annular block is in interference fit with the second annular groove.
7. A double row sprocket structure for enhancing assembly friction as set forth in claim 1, wherein: the roughening ring comprises an embedding part and a roughening part, the embedding part is embedded into the clamping groove, the roughening part is located outside the clamping groove, a plurality of strip protrusions are arranged on the surface of the roughening part, and the strip protrusions are evenly distributed along the circumferential direction of the surface of the roughening part.
8. A double row sprocket structure for enhancing assembly friction as set forth in claim 1, wherein: the second annular block and the mounting block are integrally formed through powder metallurgy.
9. A double row sprocket structure for enhancing assembly friction as set forth in claim 1, wherein: the roughening ring is made of rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321550316.9U CN220118591U (en) | 2023-06-18 | 2023-06-18 | Double-row chain wheel structure capable of enhancing assembly friction force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321550316.9U CN220118591U (en) | 2023-06-18 | 2023-06-18 | Double-row chain wheel structure capable of enhancing assembly friction force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220118591U true CN220118591U (en) | 2023-12-01 |
Family
ID=88888561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321550316.9U Active CN220118591U (en) | 2023-06-18 | 2023-06-18 | Double-row chain wheel structure capable of enhancing assembly friction force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220118591U (en) |
-
2023
- 2023-06-18 CN CN202321550316.9U patent/CN220118591U/en active Active
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