CN216519252U - Shaft connecting structure - Google Patents
Shaft connecting structure Download PDFInfo
- Publication number
- CN216519252U CN216519252U CN202123025046.3U CN202123025046U CN216519252U CN 216519252 U CN216519252 U CN 216519252U CN 202123025046 U CN202123025046 U CN 202123025046U CN 216519252 U CN216519252 U CN 216519252U
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- China
- Prior art keywords
- shaft
- hole
- head
- section
- regular polygon
- 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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a shaft connecting structure, which comprises a shaft body and a connecting body; the shaft body is provided with a regular polygonal shaft head; the shaft hole of the connector is internally provided with a frustum-shaped through hole and a guide part, and the regular polygon shaft head is guided by the guide part to rotate in a self-adaptive manner in the frustum-shaped through hole under the action of axial assembly external force, so that the shaft head and the shaft hole can be smoothly assembled in place without alignment, the production efficiency is improved, and the automatic production requirement can be particularly met.
Description
Technical Field
The utility model belongs to the technical field of mechanical transmission, and particularly relates to a shaft connecting structure.
Background
In some mechanical devices or electronic products, a shaft connecting structure is commonly used, and as shown in fig. 1, the shaft connecting structure includes a shaft body 1 and a connecting body 2, a D-shaped shaft head 11D is disposed at an end of the shaft body 1, the connecting body 2 is disposed with a D-shaped shaft hole 21D, and the shaft head 11D is connected in the shaft hole 21D. During the equipment, need counterpoint D type shaft hole 21D and D type axle head 11D, otherwise the off normal produces conflict, difficult equipment, and this kind of shaft connecting structure because thereby need counterpoint in the assembling process and lead to production efficiency low, especially can not satisfy automated production's needs.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a shaft connecting structure, which can solve the technical problem that the shaft connecting structure can be smoothly assembled in place without alignment operation during assembly by guiding a regular polygon shaft head and a connecting body to rotate relatively in a self-adaptive manner in a frustum-shaped through hole through a guide part.
The technical scheme adopted by the utility model for solving the technical problems is as follows.
A shaft connecting structure comprises a shaft body and a connecting body, wherein a shaft head is arranged at the end part of the shaft body, and the cross section of the working section of the shaft head is a regular polygon; the connecting body is provided with a shaft hole, and a section of frustum-shaped through hole is arranged in the shaft hole; the through hole is provided with a guide part; the shaft head is connected in the shaft hole.
Furthermore, the cross section of the front end of the through hole is a circumscribed circle of the regular polygon of the shaft head; the cross section of the rear end of the through hole is a regular polygon of the shaft head.
Further, the guide portion is a sector inclined surface.
Further, the guide part is a triangular table surface.
Further, the guide part is a triangular diamond-shaped protrusion.
The utility model has the beneficial effects that: the technical problem that the assembly can be smoothly carried out without alignment during assembly is solved, so that the production efficiency is improved, and the automatic production requirement can be particularly met.
Drawings
The utility model is further illustrated by the following examples in conjunction with the drawings.
Fig. 1 is a schematic view of a shaft connection structure of the prior art.
Fig. 2 is a schematic structural view of a shaft connecting structure according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a guide portion according to a first embodiment of the utility model.
Fig. 4 is a schematic structural view of a guide portion in the second embodiment of the present invention.
Fig. 5 is a schematic structural view of a guide portion in the third embodiment of the present invention.
In the figure: 1. a shaft body; 11. a shaft head; 2. a linker; 21. a shaft hole; 211. a frustum-shaped through hole; 212. a regular polygonal shaft hole; 2111. a guide portion.
Detailed Description
[ EXAMPLES one ]
As shown in fig. 2 to 3, a shaft connecting structure of the present invention includes a shaft body 1 and a connecting body 2.
A shaft head 11 is arranged at the end part of the shaft body 1, and the section of the working section of the shaft head 11 is a regular polygon; the circumscribed circle diameter of the regular polygon is the diameter D of the spindle nose 11, the number of sides N of the regular polygon is empirically set to a larger value according to the size of the spindle nose diameter D and the technical requirements for ensuring the spindle body 1 and the connecting body 2 to slip without rotating, and the like, and the regular polygon is set in this embodiment.
The connector 2 is provided with a shaft hole 21, a section of through hole 211 in a frustum shape is arranged in the shaft hole 21, and the section of the front end of the through hole 211 is a circumscribed circle of a regular polygon of the shaft head; the section of the rear end of the through hole 211 is a regular polygon of the shaft head; the rear end of the through hole 211 is also connected with a section of regular polygon shaft hole 212. The tail end of the shaft hole 21 can be a through hole or a blind hole; the connecting body 2 may be a gear or a support.
The through hole 211 section is provided with a guide portion 2111. As shown in fig. 3, the guide portion 2111 is a fan-shaped inclined surface, the straight side of the fan-shaped inclined surface is a regular polygon side, the arc side of the fan-shaped inclined surface is overlapped with the external circumferential wall of the regular polygon, and the fan-shaped inclined surface constitutes the guide portion of the present invention.
When the shaft body 1 and the connecting body 2 are connected, the front end surface of the shaft hole 21 is a circumscribed circle of the regular polygonal shaft, so that the shaft body 1 and the connecting body 2 can be butted at any angle, and under the action of axial assembly external force, when the shaft body 1 and the connecting body 2 move axially relatively, the shaft body 1 and the connecting body 2 can rotate relatively in a self-adaptive manner under the guidance of the guide portion 2111 in the frustum-shaped through hole 211 until the rear end surface of the section of the through hole 211 is reached, and the relative rotation is stopped. Therefore, the shaft body 1 and the connecting body 2 can be smoothly assembled in place without alignment during connection and assembly.
[ example two ]
As shown in fig. 4, the guide portion 2111 is a triangular table, the base of the triangle is a regular polygon, and the vertex of the triangle is located on the circumscribed circumferential wall of the regular polygon; the waist edge of the triangle forms a boss relative to the external circumferential wall surface, and the triangular table surface forms the guide part of the utility model.
[ EXAMPLE III ]
As shown in fig. 5, the guide portion 2111 is a triangular rhomboid projection, which constitutes the guide portion of the present invention.
The above description is only a preferred embodiment of the present invention, but the present invention is not limited to the above embodiments, and the present invention shall fall within the protection scope of the present invention as long as the technical effects of the present invention are achieved by any similar or identical means.
Claims (5)
1. A shaft connecting structure comprises a shaft body (1) and a connecting body (2); a shaft head (11) is arranged at the end part of the shaft body (1), a shaft hole (21) is formed in the connecting body (2), and the shaft head (11) is connected in the shaft hole (21); the method is characterized in that: the cross section of the working section of the shaft head (11) is a regular polygon; a section of frustum-shaped through hole (211) is arranged in the shaft hole (21); the through hole (211) is provided with a guide portion (2111).
2. The shaft connection structure according to claim 1, wherein: the cross section of the front end of the through hole (211) is a circumscribed circle of the shaft head regular polygon; the cross section of the rear end of the through hole (211) is a regular polygon of the shaft head.
3. The shaft connection structure according to claim 1, wherein: the guide portion (2111) is a sector inclined surface.
4. The shaft connection structure according to claim 1, wherein: the guide portion (2111) is a triangular table-board.
5. The shaft connection structure according to claim 1, wherein: the guide part (2111) is a triangular rhombus protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123025046.3U CN216519252U (en) | 2021-12-06 | 2021-12-06 | Shaft connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123025046.3U CN216519252U (en) | 2021-12-06 | 2021-12-06 | Shaft connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216519252U true CN216519252U (en) | 2022-05-13 |
Family
ID=81464062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123025046.3U Expired - Fee Related CN216519252U (en) | 2021-12-06 | 2021-12-06 | Shaft connecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216519252U (en) |
-
2021
- 2021-12-06 CN CN202123025046.3U patent/CN216519252U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220513 |