CN203214817U - Cylindrical gear capable of realizing circumferential positioning - Google Patents
Cylindrical gear capable of realizing circumferential positioning Download PDFInfo
- Publication number
- CN203214817U CN203214817U CN 201320226024 CN201320226024U CN203214817U CN 203214817 U CN203214817 U CN 203214817U CN 201320226024 CN201320226024 CN 201320226024 CN 201320226024 U CN201320226024 U CN 201320226024U CN 203214817 U CN203214817 U CN 203214817U
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- Prior art keywords
- elongated hole
- cavity
- press part
- wheel body
- cylindrical gear
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Abstract
The utility model relates to a transmission element, in particular to a cylindrical gear capable of realizing the circumferential positioning. The utility model provides the cylindrical gear adopting the following technical scheme that the cylindrical gear capable of realizing the circumferential positioning comprises a gear body and a plurality of transmission teeth arranged on the outer circumferential surface of the gear body, wherein the middle in the axial direction of the gear body is provided with an installing hole, a plurality of key slots are uniformly distributed on the inner wall of the installing hole, elastic butting contact assemblies are arranged on the bottom end surfaces of the key slots and comprise extending holes and cavities, the extending holes are formed in the bottom end surfaces of the key slots, the cavities are conducted with the extending holes, compression springs are arranged in the cavities, butting pressing elements are arranged between the compression springs and the extending holes, one ends of the butting pressing elements are in butting contact with the compression springs, and the other ends of the butting pressing elements extend to positions outside the extending holes. The technical scheme is adopted, and the cylindrical gear capable of realizing the circumferential positioning with the advantages that the connection is compact, and the structure is simple is provided.
Description
Technical field
The utility model relates to a kind of driving component, particularly a kind of cylindrical gears that can circumferentially locate.
Background technique
Cylindrical gears is that a kind of reference surface is the gear of cylinder, and its purposes is wider, can be used for aviation machine, mining machinery in mechanical field, can be used in the daily life in wrist-watch, the electric fan.Traditional cylindrical gears by wheel body, be located on the wheel body outer circumferential face some driving cogs and form, the axial middle part of wheel body is provided with mounting hole, is typically provided with keyway in traditional mounting hole, implements to be connected by key piece and transmission shaft.Yet after using for a long time, the key piece is in the keyway can be subjected to corresponding wearing and tearing, make between key piece and the keyway and produce the gap, cylindrical gears then can wave when operation, thereby can't be stable mesh with outside driving gear enforcement has influence on the transmission effect.
Summary of the invention
At the deficiency that prior art exists, the utility model provides a kind of compactness, the cylindrical gears that can circumferentially locate simple in structure of connecting.
For achieving the above object, the utility model provides following technological scheme: a kind of cylindrical gears that can circumferentially locate, include wheel body, be located at some driving cogs on the wheel body outer circumferential face, the axial middle part of described wheel body is provided with mounting hole, be evenly equipped with some keyways on the inwall of described mounting hole, it is characterized in that: the bottom end face of described keyway is provided with elasticity conflict assembly, this elasticity conflict assembly includes the elongated hole that is opened on the keyway bottom end face, cavity with the elongated hole conducting, be provided with the compression spring in the cavity, be provided with press part between compression spring and the elongated hole, one end of press part is conflicted with the compression spring, and the other end extends to outside the elongated hole.
Adopt technique scheme, by the bottom end face at keyway elasticity conflict assembly is set, when transmission shaft by after being connected between spline and the wheel body, press part in the elasticity conflict assembly is compressed the power that compresses of spring and implements to conflict with spline all the time, and when wearing and tearing appearred in spline, spline was subjected to the conflict of press part, make between impaired spline and the keyway and still mobilizable gap can not occur, thereby guaranteed the compactedness that is connected between wheel body and the rotatingshaft, simple in structure, easy to process.
The utility model further is set to: press part includes the post that compresses that is in the body in the cavity and extends to the elongated hole place, the diameter of elongated hole is less than the diameter of cavity, be provided with the limited shoulder rank of conflicting with the body of press part between elongated hole and the cavity, the top that compresses post of described press part is provided with some salient points.
Adopt technique scheme, setting can prevent that press part breaks away from cavity in installation process like this, has made things convenient for installation, and the while also provides guarantee for being connected between wheel body and the transmission shaft.
The utility model further is set to: be evenly equipped with positioning convex on the side wall surface of keyway.
Adopt technique scheme, further being connected between coupling shaft and the wheel body that guaranteed is set like this, it is more compact and stablize to make it linkage structure.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Fig. 1 is the utility model embodiment's structural representation;
Fig. 2 is the A-A partial cutaway schematic of Fig. 1;
Fig. 3 is the I portion enlarged diagram of Fig. 2.
Embodiment
As Fig. 1-a kind of cylindrical gears that can circumferentially locate shown in Figure 3, include wheel body 1, be located at some driving cogs 11 on wheel body 1 outer circumferential face, wheel body 1 axial middle part is provided with mounting hole 12, be evenly equipped with some keyways 13 on the inwall of mounting hole 12, the bottom end face 131 of keyway 13 is provided with elasticity conflict assembly 2, this elasticity conflict assembly 2 includes the elongated hole 21 that is opened on keyway 13 bottom end faces 131, cavity 22 with elongated hole 21 conductings, be provided with compression spring 23 in the cavity 22, be provided with press part 24 between compression spring 23 and the elongated hole 21, one end of press part 24 is conflicted with compression spring 23, and the other end extends to outside the elongated hole 21.In the such scheme, by the bottom end face 131 at keyway 13 elasticity conflict assembly 2 is set, when transmission shaft by after being connected between spline and the wheel body 1, press part 24 in the elasticity conflict assembly 2 is compressed the power that compresses of spring 23 and implements to conflict with spline all the time, when wearing and tearing appear in spline, spline is subjected to the conflict of press part 24, make between impaired spline and the keyway 13 and still mobilizable gap can not occur, thereby guaranteed the compactedness that is connected between wheel body 1 and the rotatingshaft, simple in structure, easy to process.
In the utility model embodiment, in order to prevent that press part 24 breaks away from cavity 22 in installation process, press part 24 include be in the body 241 in the cavity 22 and extend to elongated hole 21 places compress post 242, the diameter of elongated hole 21 is provided with the limited shoulder rank 211 of conflicting with the body 241 of press part 24 less than the diameter of cavity 22 between elongated hole 21 and the cavity 22.In order further to guarantee being connected between coupling shaft and the wheel body 1, make it more compact the reaching of linkage structure and stablize, the top that compresses post 242 of press part 24 is provided with some salient points 2421.Be evenly equipped with positioning convex 133 on the side wall surface 132 of keyway 13.
Claims (3)
1. the cylindrical gears that can circumferentially locate, include wheel body, be located at some driving cogs on the wheel body outer circumferential face, the axial middle part of described wheel body is provided with mounting hole, be evenly equipped with some keyways on the inwall of described mounting hole, it is characterized in that: the bottom end face of described keyway is provided with elasticity conflict assembly, this elasticity conflict assembly includes the elongated hole that is opened on the keyway bottom end face, cavity with the elongated hole conducting, be provided with the compression spring in the cavity, be provided with press part between compression spring and the elongated hole, one end of press part is conflicted with the compression spring, and the other end extends to outside the elongated hole.
2. the cylindrical gears that can circumferentially locate according to claim 1, it is characterized in that: described press part includes the post that compresses that is in the body in the cavity and extends to the elongated hole place, the diameter of elongated hole is less than the diameter of cavity, be provided with the limited shoulder rank of conflicting with the body of press part between elongated hole and the cavity, the top that compresses post of described press part is provided with some salient points.
3. the cylindrical gears that can circumferentially locate according to claim 1 and 2 is characterized in that: be evenly equipped with positioning convex on the side wall surface of described keyway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320226024 CN203214817U (en) | 2013-04-28 | 2013-04-28 | Cylindrical gear capable of realizing circumferential positioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320226024 CN203214817U (en) | 2013-04-28 | 2013-04-28 | Cylindrical gear capable of realizing circumferential positioning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203214817U true CN203214817U (en) | 2013-09-25 |
Family
ID=49204357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320226024 Expired - Fee Related CN203214817U (en) | 2013-04-28 | 2013-04-28 | Cylindrical gear capable of realizing circumferential positioning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203214817U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259914A (en) * | 2019-05-21 | 2019-09-20 | 台州格凌机械有限公司 | A kind of gear driving member and its production technology |
| CN110535268A (en) * | 2019-09-24 | 2019-12-03 | 温州北工汽车电器有限公司 | The rotor assembly of fan motor for automobile |
-
2013
- 2013-04-28 CN CN 201320226024 patent/CN203214817U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259914A (en) * | 2019-05-21 | 2019-09-20 | 台州格凌机械有限公司 | A kind of gear driving member and its production technology |
| CN110259914B (en) * | 2019-05-21 | 2020-10-20 | 台州格凌机械股份有限公司 | Gear transmission part and production process thereof |
| CN110535268A (en) * | 2019-09-24 | 2019-12-03 | 温州北工汽车电器有限公司 | The rotor assembly of fan motor for automobile |
| CN110535268B (en) * | 2019-09-24 | 2024-06-07 | 瑞安市韩田汽车工业有限公司 | Rotor assembly of automobile fan motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20140428 |