CN204493478U - Expansion sleeve - Google Patents
Expansion sleeve Download PDFInfo
- Publication number
- CN204493478U CN204493478U CN201420840071.8U CN201420840071U CN204493478U CN 204493478 U CN204493478 U CN 204493478U CN 201420840071 U CN201420840071 U CN 201420840071U CN 204493478 U CN204493478 U CN 204493478U
- Authority
- CN
- China
- Prior art keywords
- inner ring
- sleeve
- face
- hole
- exterior
- 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
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- Mounting Of Bearings Or Others (AREA)
Abstract
The utility model provides a kind of expansion sleeve, comprise inner ring sleeve, exterior ring cap, bolt, by the effect of high strength tension bolt, mutually be socketed with the inner ring of interior male cone (strobilus masculinus) and outer shroud, inner ring end face is provided with axial through hole, outer shroud end face is provided with the coaxial screw coordinated with inner ring end face through hole, the locking mechanism of locking inside and outside ring is formed by through hole and screw, not only realize the safety operation reliability of expansion sleeve, connect more stable, easy to operate, be widely used in heavy machinery, wind-power electricity generation, package packing machine, printing machinery, numerical control machine tool, the fields such as automation equipment.
Description
Technical field
The utility model relates to component of machine and connects and securing means, especially a kind of expansion sleeve of coupling shaft.
Background technique
Along with the exploitation of new energy, wind-power electricity generation is promoted at home widely, become an emerging industry, on the speed change machine that expansion sleeve device is extensively matched in blower fan as a vitals on blower fan and yawing reducer, ensure that it contacts with transmission shaft well, thus ensure that blower fan normally works, there is good fixed performance.
In common mechanical transmission, axle and the wheel hub be set on axle are connected to transmit by key to move and moment of torsion, and need to offer keyway on axle and wheel hub because key connects, the mechanical strength of axle and wheel hub can be affected; And traditional key connects and there is the inconvenient problem of dismounting, installing/dismounting wheel hub all need to adopt manually beat, the mode of mechanical press mounting, not only require great effort but also bother; Expansion sleeve is a kind of keyless joint device, and its principle and purposes are the effects by high strength tension bolt, between inner ring and axle, between outer shroud and wheel hub, produce huge enclasping force, to realize the keyless joint of parts and axle; When bearing load, by expansion set and parts, axle in conjunction with pressure and the frictional force transmitting torque, axial force or the combined load of the two that produce together.
The quantity of its assembly of technological scheme relatively more conventional is at present more, adds the unstability of assembling, and clamping region cannot realize fast operating, inefficiency when mounting and dismounting, unfavorable to in-site installation, and fastening Security can not effective guarantee.
Therefore, we need to adopt a kind of preferred technological scheme to solve aforesaid technical problem, and so, we will set forth the feature of this technological scheme further.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of expansion sleeve, by the effect of high strength tension bolt, mutually be socketed with the inner ring of interior male cone (strobilus masculinus) and outer shroud, inner ring end face is provided with axial through hole, and outer shroud end face is provided with the coaxial screw coordinated with inner ring end face through hole, consists of the locking mechanism of locking inside and outside ring through hole and screw, not only realize the safety operation reliability of expansion sleeve, easy to operate.
The purpose of this utility model is achieved through the following technical solutions:
The utility model provides a kind of expansion sleeve, comprise inner ring sleeve, exterior ring cap, bolt, in exterior ring cap described in described inner ring sleeve embeds, described inner ring sleeve end face is provided with axial through hole, exterior ring cap end face is provided with the coaxial screw coordinated with inner ring sleeve end face through hole, described bolt connects and composes in locking through through hole and screw, the locking mechanism of exterior ring cap, it is characterized in that: the inwall of described inner ring sleeve outer wall and exterior ring cap is that the conical surface is arranged, and the male cone (strobilus masculinus) of the inner conical surface of exterior ring cap and inner ring sleeve matches, the inner conical surface of exterior ring cap and the male cone (strobilus masculinus) angle of inner ring sleeve are 2.6 ° ~ 2.8 °, and two taper-face contact are even, contact (area) pattern is not less than 80%.
Further, by the active force of high strength tension bolt, the outer wall of inner ring sleeve is squeezed inwardly to shrink and is held tightly by axle, and the inwall of exterior ring cap is squeezed and constantly expands laterally, realizes the keyless joint of parts and axle.
The utility model there is unique advantage and beneficial effect as follows:
(1) long service life of the inside and outside ring set of technical solutions of the utility model, intensity is high, inside and outside ring set relies on friction driving, keyway is not had to weaken to being coupled part, also without relative movement, can not produce wearing and tearing in work, the damage risk of assembling reduces, for installation and client have saved user cost;
(2) technical solutions of the utility model are compared with the technological scheme before improving, easily manufactured simple with installation.The convenient processing and manufacture in inside and outside ring set and hole, need not heat when inside and outside ring set is installed, cool or pressurized equipment, bolt moment on request need only be tightened, and easy to adjust, wheel hub can be adjusted to desired location easily on axle;
(3) technical solutions of the utility model use safety, reliability is high.Inside and outside ring set can bear multi-load, and structure can make multiple style, multiple exterior ring cap series connection can use, skids and can protect mechanical part, can be without prejudice by proterctive equipment during overload;
(4) technical solutions of the utility model use conventional tool to mount and dismount easily, and have good interchangeability.Because inner and outer rings can combine the propeller boss of larger matching gap, unscrewed by bolt during dismounting, during swelling, contact end face fits tightly not corrosion, is convenient to take apart.
Accompanying drawing explanation
Fig. 1 is the perspective view of the technical program expansion sleeve;
Fig. 2 is the section of structure of the technical program expansion sleeve;
In figure, the implication of each reference character is:
1 ~ inner ring sleeve, 2 ~ exterior ring cap, 3 ~ bolt.
Embodiment
Below in conjunction with Figure of description in detail technical solutions of the utility model are described in detail:
As shown in Fig. 1 Fig. 2, a kind of expansion sleeve, comprise inner ring sleeve 1, exterior ring cap 2, bolt 3, described inner ring sleeve 1 embeds in described exterior ring cap 2, described inner ring sleeve 1 end face is provided with axial through hole, exterior ring cap 2 end face is provided with the coaxial screw coordinated with inner ring sleeve 1 end face through hole, described bolt 3 connects and composes through through hole and screw and locks inner ring sleeve 1, the locking mechanism of exterior ring cap 2, it is characterized in that: the inwall of described inner ring sleeve 1 outer wall and exterior ring cap 2 is that the conical surface is arranged, and the male cone (strobilus masculinus) of the inner conical surface of exterior ring cap 2 and inner ring sleeve 1 matches, the inner conical surface of exterior ring cap 2 and the male cone (strobilus masculinus) angle of inner ring sleeve 1 are 2.6 ° ~ 2.8 °, and two taper-face contact are even, contact (area) pattern is not less than 80%, when bearing load, inner ring set 1, exterior ring cap 2 and parts, axle in conjunction with pressure and the frictional force transmitting torque, axial force or the combined load of the two that produce together.
Again further, this expansion sleeve is installed between axle and wheel hub, namely the inner ring sleeve 1 of expansion sleeve is embraced with axle, exterior ring cap 2 and the wheel hub of expansion sleeve are affixed, inner ring sleeve 1 end face through hole is corresponding with the screw of exterior ring cap 2 supporting, lock inner ring sleeve 1 and exterior ring cap 2 after described bolt 3 connects with exterior ring cap 2 end face screw through inner ring sleeve 1 end face through hole, tight a bolt 3 as required gradually until produce enclasping force between inner ring sleeve 1 and axle, between exterior ring cap 2 and wheel hub; Constantly tight a bolt, inner ring sleeve 1 and exterior ring cap 2 stressed all towards middle part extruding, constantly extruding makes inner ring sleeve 1 inwardly shrink to be held tightly by axle, and exterior ring cap 2 constantly expands laterally, swelling wheel hub, the firm connection of axle and wheel hub; During dismounting, directly bolt 3 is unscrewed a few circle, loose unloading inner ring sleeve 1 and exterior ring cap 2, then unload inner ring sleeve 1 and exterior ring cap 2 successively, can expansion sleeve be unloaded.
Further, described expansion sleeve inner ring sleeve 1 and exterior ring cap 2 all adopt superior alloy steel to be raw material, and through heat treatment process, high-temperature tempering after quenching, heating-up temperature is 560 ~ 600 DEG C, tempering insulation time, apparent hardness requires and workpiece size and determining, to ensure hardness, obtain comprehensive mechanical performance, after modified, carry out fine finishing inner ring sleeve 1, exterior ring cap 2 end face upper screwed hole and matching thread hole.
Expansion sleeve connection is a kind of newer expansion-joints mode, has the features such as structure is simple, centering precision is high, transmitting torque is large, reliable clamping, mounting or dismounting convenience, be widely used in machinery, gear hub connection due to it.
In sum; above embodiment is only one of preferred implementation of the present utility model; do not do this technological scheme and limit further, the routine change carried out this technological scheme those skilled in the art and the replacement of unsubstantiality all should be included in the protection domain of present patent application.
Claims (3)
1. an expansion sleeve, comprise inner ring sleeve, exterior ring cap, bolt, in exterior ring cap described in described inner ring sleeve embeds, described inner ring sleeve end face is provided with axial through hole, exterior ring cap end face is provided with the coaxial screw coordinated with inner ring sleeve end face through hole, described bolt connects and composes in locking through through hole and screw, the locking mechanism of exterior ring cap, it is characterized in that: the inwall of described inner ring sleeve outer wall and exterior ring cap is that the conical surface is arranged, and the male cone (strobilus masculinus) of the inner conical surface of exterior ring cap and inner ring sleeve matches, the inner conical surface of exterior ring cap and the male cone (strobilus masculinus) angle of inner ring sleeve are 2.6 ° ~ 2.8 °, and two taper-face contact are even, contact (area) pattern is not less than 80%.
2. expansion sleeve according to claim 1, it is characterized in that: this expansion sleeve is installed between axle and wheel hub, namely the inner ring sleeve of expansion sleeve and axle are embraced, exterior ring cap and the wheel hub of expansion sleeve are affixed, inner ring sleeve end face through hole is corresponding with the screw of exterior ring cap supporting, and described bolt locks inner ring sleeve and exterior ring cap after connecting with exterior ring cap end face screw through inner ring sleeve end face through hole.
3. expansion sleeve according to claim 1, it is characterized in that: described expansion sleeve inner ring sleeve and exterior ring cap all adopt superior alloy steel to be raw material, and through heat treatment process, high-temperature tempering after quenching, heating-up temperature is 560 ~ 600 DEG C, carries out fine finishing inner ring sleeve, exterior ring cap end face upper screwed hole and matching thread hole after modified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420840071.8U CN204493478U (en) | 2014-12-26 | 2014-12-26 | Expansion sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420840071.8U CN204493478U (en) | 2014-12-26 | 2014-12-26 | Expansion sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204493478U true CN204493478U (en) | 2015-07-22 |
Family
ID=53572798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420840071.8U Expired - Fee Related CN204493478U (en) | 2014-12-26 | 2014-12-26 | Expansion sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204493478U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026562A (en) * | 2018-10-22 | 2018-12-18 | 国电联合动力技术有限公司 | A kind of barring gear and its wind power generating set of Wind turbines integrated form |
-
2014
- 2014-12-26 CN CN201420840071.8U patent/CN204493478U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026562A (en) * | 2018-10-22 | 2018-12-18 | 国电联合动力技术有限公司 | A kind of barring gear and its wind power generating set of Wind turbines integrated form |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 Termination date: 20211226 |