CN203453309U - Expansion sleeve - Google Patents
Expansion sleeve Download PDFInfo
- Publication number
- CN203453309U CN203453309U CN201320506443.9U CN201320506443U CN203453309U CN 203453309 U CN203453309 U CN 203453309U CN 201320506443 U CN201320506443 U CN 201320506443U CN 203453309 U CN203453309 U CN 203453309U
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- China
- Prior art keywords
- wall
- expansion sleeve
- expansion
- sleeve
- utility
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Abstract
The utility model relates to an expansion sleeve. The expansion sleeve is in a cylindrical sleeve structure; the inner wall and the outer wall of the cylindrical sleeve are respectively and uniformly provided with a plurality of ring-shaped grooves at intervals; a plurality of bolt holes are uniformly distributed in the outer wall of the cylindrical sleeve; one end of each bolt hole is a threaded hole and the other end of each bolt hole is a countersink for containing the head part of an inner hexagonal bolt; and the ring-shaped grooves of the outer wall are internally and respectively provided with a group of springs along the axial direction. The expansion sleeve has the advantages that the structure is simple, the processing is convenient, the stressing is uniform, the wear is not easy, the expansion effect is good, the transferring torque can be increased, and the use is more ensured, so that a foundation is laid for popularization and application of an expansion connecting device of the expansion sleeve.
Description
Technical field
The utility model relates to a kind of keyless device, and being specifically related to is a kind of expansion sleeve.
Background technique
Expansion-joints is the feature such as transmitting torque is large, transmission precision is high, overload protection owing to having, and just progressively replaces traditional keyway and connects.Now, conventional expansion-joints has conical ring expansion-joints and two kinds of forms of conical surface expansion sleeve expansion-joints.Wherein, the standardization of structure of conical surface expansion sleeve expansion-joints, seriation, structure, base dimension and the parameter of JB/T7934-1995 pair conical surface expansion sleeve expansion-joints provide by the form of form, use more convenient.About design handbook and the books of conical ring expansion-joints have detailed introduction and analytical calculation, this applies for it condition created.
Model utility content
The utility model object is in order to overcome the deficiencies in the prior art, to provide a kind of can efficiently and stably transmit the more expansion sleeve of high pulling torque.
For achieving the above object, the technical solution adopted in the utility model is: a kind of expansion sleeve, and described expansion sleeve is cylindrical shroud structure, on described cylindrical shroud inwall and outer wall, evenly interval has a plurality of circular grooves respectively; On described outer wall, be uniform-distribution with several bolts hole, at the two ends of bolt hole, one end is tapped hole, and the other end is counterbore, and counterbore is used for holding the head of hexagon socket head cap screw, is axially arranged with respectively one group of spring in described outer wall circular groove.
Further improved as the utility model, described outer wall circular groove bottom is provided with circular arc chamfering.
Due to the utilization of technique scheme, the utility model compared with prior art has following advantages:
A kind of expansion sleeve of the utility model scheme, simple in structure, easy to process, stressed evenly not easy to wear, swelling is effective and can increase transmitting torque, uses more securely, and this lays a good foundation for applying of expansion sleeve swelling connection set.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solutions of the utility model are described further:
The structural representation that accompanying drawing 1 is a kind of expansion sleeve of the present utility model;
Wherein: 1, inwall; 2, outer wall; 3, circular groove; 4, bolt hole; 5, bolt; 6, spring; 7, circular arc chamfering.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
Accompanying drawing 1 is a kind of expansion sleeve described in the utility model, and described expansion sleeve is cylindrical shroud structure, and on described cylindrical shroud inwall 1 and outer wall 2, evenly interval has a plurality of circular grooves 3 respectively; On described outer wall 2, be uniform-distribution with several bolts hole 4, two ends at bolt hole 4, one end is tapped hole, the other end is counterbore, counterbore is used for holding the head of hexagon socket head cap screw, bolt 5 is housed in this bolt hole, is axially arranged with respectively one group of spring 6 the circular groove 3 of described outer wall 2 is interior, described outer wall circular groove 3 bottoms are provided with circular arc chamfering 7.
During use, expansion sleeve is directly enclosed within on axle, on the cylindrical of expansion sleeve, be set with wheel hub (or flange), tight a bolt 5, make the inside extrusion-deformation of expansion sleeve, thereby under the effect of elasticity tension force, axle and wheel hub (or flange) are linked together, reach the object of fixing and transmitting torque, the effect of circular groove 3 is when swelling, force bearing point is at the zone line of surface of contact, so just avoided concentrated stress at the two ends of surface of contact sharp corner, in order further to reduce stress concentration phenomenon, wall circular groove 3 bottoms are provided with circular arc chamfering 7 outside, radius of arc is R2-R3.And the effect of the spring 6 being equipped with in outer wall bar-shaped trough 3 is except making the expansion sleeve can be in best working state in deformation process, also there is the effect that increases transmitting torque, simple in structure, processing is simple, use more securely, this lays a good foundation for applying of expansion sleeve swelling connection set.
Below be only concrete exemplary applications of the present utility model, protection domain of the present utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technological scheme of formation, within all dropping on the utility model rights protection scope.
Claims (2)
1. an expansion sleeve, described expansion sleeve is cylindrical shroud structure, on described cylindrical shroud inwall and outer wall, evenly interval has a plurality of circular grooves; On described outer wall, be uniform-distribution with several bolts hole, at the two ends of bolt hole, one end is tapped hole, and the other end is counterbore, and counterbore is used for holding the head of hexagon socket head cap screw, it is characterized in that: in described outer wall circular groove, be axially arranged with respectively one group of spring.
2. a kind of expansion sleeve according to claim 1, is characterized in that: described outer wall circular groove bottom is provided with circular arc chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320506443.9U CN203453309U (en) | 2013-08-19 | 2013-08-19 | Expansion sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320506443.9U CN203453309U (en) | 2013-08-19 | 2013-08-19 | Expansion sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203453309U true CN203453309U (en) | 2014-02-26 |
Family
ID=50133184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320506443.9U Expired - Fee Related CN203453309U (en) | 2013-08-19 | 2013-08-19 | Expansion sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203453309U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706619A (en) * | 2020-07-06 | 2020-09-25 | 太原科技大学 | Keyless connection locking ring |
-
2013
- 2013-08-19 CN CN201320506443.9U patent/CN203453309U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706619A (en) * | 2020-07-06 | 2020-09-25 | 太原科技大学 | Keyless connection locking ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140226 Termination date: 20140819 |
|
| EXPY | Termination of patent right or utility model |