CN218152056U - Expansion sleeve structure convenient to use - Google Patents
Expansion sleeve structure convenient to use Download PDFInfo
- Publication number
- CN218152056U CN218152056U CN202222208027.2U CN202222208027U CN218152056U CN 218152056 U CN218152056 U CN 218152056U CN 202222208027 U CN202222208027 U CN 202222208027U CN 218152056 U CN218152056 U CN 218152056U
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- CN
- China
- Prior art keywords
- cover
- expansion sleeve
- expands
- wall
- wedge
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- 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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Abstract
The utility model discloses an expand set structure that facilitates use, include transmission shaft, wheel hub and set up the cover structure that expands between transmission shaft and wheel hub, the cover structure that expands include interior bloated cover, the cover that expands outward, interior bloated suit on the transmission shaft, the cover suit that expands outward in the outside of the cover that expands in, the outer wall of the cover that expands outward laminates with wheel hub's inner wall mutually, and the cover internal surface that expands outward be with the wedge matched with wedge of the front side of the cover outer wall that expands outward, through connecting interior bloated cover external screw thread and the cover internal thread fixed connection that expands outward. The beneficial effects of the utility model are that: the installation is convenient, the connection and the disassembly of the expansion sleeve structure can be realized by screwing and locking the outer hexagonal of the outer expansion sleeve and the outer hexagonal of the inner expansion sleeve, and the operation is quick and labor-saving.
Description
Technical Field
The utility model relates to a transmission technical field, especially an expand set structure that facilitates use.
Background
The mode of transmitting the torque through the key connecting shaft and the shaft transmission part has a simple structure, can well complete the work tasks of transmitting motion and torque, but has the defect of inconvenient disassembly in the key connecting mode, wastes labor and time when the driving wheel is assembled or disassembled, and is more troublesome to disassemble after rusting occurs in long-term use. The key connection mode is to arrange key slots for embedding keys on the hub of the shaft and the driving wheel, so that the mechanical strength of the shaft and the hub is weakened, stress concentration can be generated, and cracks, cracks and even openings are easily generated at the key slots to enable mechanical parts to fail in advance.
Disclosure of Invention
An object of the utility model is to overcome prior art's shortcoming, provide an expand set structure easy to assemble.
The utility model aims at realizing through the following technical scheme: the utility model provides an easy to assemble's bloated cover structure, includes transmission shaft, wheel hub and sets up the bloated cover structure between transmission shaft and wheel hub, bloated cover structure including interior bloated cover, the cover that expands outward, interior bloated cover suit on the transmission shaft, the inner wall of interior bloated cover is laminated with the outer wall of transmission shaft mutually, the cover suit that expands outward is in the outside of interior bloated cover, and the outer wall of the cover that expands outward is laminated with wheel hub's inner wall mutually, the front side of the outer wall of interior bloated cover is a wedge, the formation conical surface of the cover outer wall that expands including the wedge, the front side of the inner wall of the cover that expands outward is a wedge, the wedge is at the formation conical surface of the cover inner wall that expands outward, the conical surface of the cover internal surface that expands is the conical surface matched with the outer wall of interior bloated cover, interior bloated cover and the cover that expands pass through connecting thread fixed connection.
The inner expansion sleeve and the outer expansion sleeve are provided with corresponding threads and outer hexagons, the threads are connected and screwed through a wrench, and therefore the wedge-shaped surfaces of the inner expansion sleeve and the outer expansion sleeve are driven to extrude each other, and the expansion sleeve structure is stable and fixed.
The utility model has the advantages of it is following:
the utility model discloses easy to assemble just can realize the connection and the dismantlement of the cover structure that expands through the outer hexagonal of twisting the outer bloated cover of locking and the interior cover that expands, operates swiftly, laborsaving. And meanwhile, the additional torsion resistance can be provided, and the use reliability is high. The groove processing on the transmission shaft or the hub is avoided, the rigidity of the device is improved, and the service life of the device is prolonged. The expansion sleeve loses the coupling effect when being overloaded, thereby protecting the equipment from being damaged.
Drawings
Fig. 1 is a schematic view of the assembly structure of the present invention, fig. 2 is a schematic view of the structure, fig. 3 is a schematic view of the outer expanding sleeve,
fig. 4 is a schematic view of the inner expanding sleeve.
In the figure, 1-a transmission shaft, 2-an inner expansion sleeve, 3-an outer expansion sleeve, 4-a hub, 5-an outer expansion sleeve outer hexagonal shape, 6-a contact part of the outer expansion sleeve and the hub, 7-an outer expansion sleeve opening, 8-an outer expansion sleeve internal thread, 9-an outer expansion sleeve wedge surface, 10-an inner expansion sleeve outer hexagonal shape, 11-an inner expansion sleeve external thread, 12-an inner expansion sleeve opening, 13-an inner expansion sleeve wedge surface, and 14-an inner expansion sleeve and transmission shaft contact part.
Detailed Description
The invention is further described with reference to the accompanying drawings:
as shown in fig. 1, an easy to assemble's bloated cover structure, including transmission shaft 1, wheel hub 4 and the bloated cover structure that sets up between transmission shaft 1 and wheel hub 4, bloated cover structure including interior bloated cover 2, the cover 3 that expands outward, interior bloated cover 2 suit is on transmission shaft 1, the inner wall of interior bloated cover 2 is laminated with the outer wall of transmission shaft 1 mutually, the cover 3 suit that expands outward is in the outside of interior bloated cover 2, and the outer wall of the cover 3 that expands is laminated with the inner wall of wheel hub 4 mutually, the front side of the outer wall of interior bloated cover 2 is a wedge, the front side of the inner wall of the cover 3 that expands outward is a wedge, the cover wedge 9 that expands outward is the matched with wedge with interior bloated cover wedge 13, interior bloated cover 2 and the cover 3 that expands through the cover internal thread 8 and interior bloated cover external screw thread 11 fixed connection.
Firstly, the outer expansion sleeve 3 and the inner expansion sleeve 2 are provided with corresponding thread matching, namely, an inner expansion sleeve external thread 11 and an outer expansion sleeve internal thread 8 respectively, the inner expansion sleeve outer hexagonal 10 is moved by a wrench plate, the outer expansion sleeve outer hexagonal 5 drives the inner expansion sleeve external thread 11 and the outer expansion sleeve internal thread 8 to be screwed, then the screwed expansion sleeve is placed into the transmission shaft 1 and the hub 4, finally, the outer expansion sleeve 3 and the inner expansion sleeve 2 are both provided with corresponding threads, namely, the inner expansion sleeve external thread 11 and the outer expansion sleeve internal thread 8 respectively, the inner expansion sleeve outer hexagonal 10 is moved by the wrench plate, the outer expansion sleeve external thread 11 and the outer expansion sleeve internal thread 8 are driven by the outer expansion sleeve external hexagonal 5, the inner expansion sleeve wedge face 13 and the outer expansion sleeve wedge face 9 are extruded and deformed mutually in the process, so that the expansion sleeve structure is stable and fixed, and when the assembly is carried out, the matching structure of the inner expansion sleeve wedge face and the outer expansion sleeve wedge face can form a good guiding effect, and the coaxiality of parts is improved.
Preferably the wedge-shaped surfaces of the inner expansion sleeve 2 and the outer expansion sleeve 3 are provided with an outer expansion sleeve opening 7 and an inner expansion sleeve opening 12 which extend along the front-back direction, so that the inner expansion sleeve wedge-shaped surface 13 and the outer expansion sleeve wedge-shaped surface 9 can be smoothly extruded and deformed, and the expansion sleeve structure can be stably fixed.
The utility model discloses use easy to assemble, through revolve twist outer cover outer hexagonal 5 and interior outer hexagonal 10 of cover that expands just can realize the connection and the dismantlement of the cover structure that expands, the operation is swift, laborsaving. And simultaneously, the additional torsion resistance can be provided and the use reliability is high. The groove processing on the transmission shaft 1 or the hub 4 is avoided, the rigidity of the device is improved, and the service life of the device is prolonged.
Claims (3)
1. The utility model provides an expand set structure that facilitates use, includes transmission shaft (1), wheel hub (4) and sets up the cover structure that expands between transmission shaft (1) and wheel hub (4), its characterized in that: the cover structure that expands include interior bloated cover (2), outer cover (3) expand, interior bloated cover (2) suit is on transmission shaft (1), the inner wall of interior bloated cover (2) is laminated with the outer wall of transmission shaft (1) mutually, the outside of the cover (3) suit of expanding in the outside of interior bloated cover (2), and the outer wall of the cover (3) that expands laminates with the inner wall of wheel hub (4) mutually, the front side of the outer wall of interior bloated cover (2) is a wedge, the front side of the inner wall of the cover (3) that expands outward is a wedge, outer cover wedge (9) and interior bloated cover wedge (13) are the matched with wedge, interior bloated cover (2) and the cover (3) that expands pass through outer cover internal thread (8) and the cover external screw thread (11) fixed connection that expands.
2. The convenient expansion sleeve structure according to claim 1, wherein: the inner expansion sleeve (2) is provided with an inner expansion sleeve outer hexagonal (10), and the outer expansion sleeve (3) is provided with an outer expansion sleeve outer hexagonal (5).
3. The convenient expansion sleeve structure according to claim 1, wherein: the inner expansion sleeve (2) is provided with an inner expansion sleeve external thread (11), and the outer expansion sleeve (3) is provided with an outer expansion sleeve internal thread (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222208027.2U CN218152056U (en) | 2022-08-22 | 2022-08-22 | Expansion sleeve structure convenient to use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222208027.2U CN218152056U (en) | 2022-08-22 | 2022-08-22 | Expansion sleeve structure convenient to use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218152056U true CN218152056U (en) | 2022-12-27 |
Family
ID=84553598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222208027.2U Active CN218152056U (en) | 2022-08-22 | 2022-08-22 | Expansion sleeve structure convenient to use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218152056U (en) |
-
2022
- 2022-08-22 CN CN202222208027.2U patent/CN218152056U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |