CN205101421U - Belt pulley tight structure that expands - Google Patents
Belt pulley tight structure that expands Download PDFInfo
- Publication number
- CN205101421U CN205101421U CN201520850845.XU CN201520850845U CN205101421U CN 205101421 U CN205101421 U CN 205101421U CN 201520850845 U CN201520850845 U CN 201520850845U CN 205101421 U CN205101421 U CN 205101421U
- Authority
- CN
- China
- Prior art keywords
- swelling
- belt pulley
- expands
- tight
- overcoat
- 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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Abstract
The utility model belongs to a neotype belt pulley tight structure that expands is refered in particular to in spare part connecting device field, including main motor, the shaping has the keyway on the main shaft of main motor, is equipped with the hookup key in the keyway, still includes the belt pulley of fixed connection on main motor spindle, the shaping of belt pulley front end has the tight groove of expanding, installs the tight overcoat that expands in the tight groove of expanding, is equipped with the tight endotheca that expands in the tight overcoat that expands, the tight overcoat that expands is put equal shaping in tight and is had bloated tieholen with expanding, is equipped with the tight screw that expands in the tieholen that expands, and the tight screw that expands passes the tieholen that expands and makes motor spindle, the tight endotheca that expands, and the tight overcoat that expands is in the same place with the subsides that the belt pulley is inseparable, the tight overcoat that expands is put still equal shaping in tight and is had the deformation groove with expanding, and internal surface one side shaping of the tight endotheca that expands has one and epaxial hookup key matched with keyway, the utility model has the advantages of simple structure, easy dismounting, hookup are reliably stable.
Description
Technical field
The utility model belongs to component connection set field, refers in particular to a kind of novel belt pulley expanding structure.
Background technique
In manufacturing mechanism, in the connecting of axial workpiece and the component matched, the joining method the most often used is Flat dey joint.The advantage that flat key connects: structure is simple, and easy processing, easy to assembly, precision is not too high.So, generally considering cost, processing and assembling easily in situation, preferentially select key to connect.The shortcoming that flat key connects: the points of engagement of Flat dey joint generally has interference fit, excessively cooperation, Spielpassung, and the most frequently used be excessively and Spielpassung two kinds (interference fit is only used in the place of particular/special requirement), so often there is gap between axial workpiece and the component matched, when stress alternation is with interval impact and machine vibration, cause between axle and component and produce axial, radial or compound movement, thus there are the wearing and tearing of component, make the change progressively of the micro-gap of existence itself large, cause fault and the damage of equipment.And if adopt universal expansion sleeve by axle and part close-coupled with holes to together, the frictional force between axle, expansion set, part three and impacting force is relied on to realize the transmission of moment, when moment is greater than the frictional force between three, will skidding be produced, abrasive damage will occur.
Summary of the invention
The purpose of this utility model is the defect existed for prior art, provides that a kind of structure is simple, belt pulley expanding structure that easy accessibility, connection are reliable and stable.
The purpose of this utility model is achieved in that
A kind of belt pulley expanding structure, comprise mair motor, the main shaft of mair motor forms keyway, linking bond is provided with in keyway, also comprise the belt pulley be fixedly connected on mair motor main shaft, described belt pulley front end forms expanding trough, swelling overcoat is installed in expanding trough, swelling inner sleeve is provided with in swelling overcoat, put in described swelling overcoat and swelling and all form swelling hole, swelling screw is provided with in swelling hole, swelling screw makes electric machine main shaft through swelling hole, swelling inner sleeve, swelling overcoat and belt pulley stick together closely, put in described swelling overcoat and swelling and also all form distortion groove, the internal surface side of swelling inner sleeve forms a keyway matched with linking bond on axle.
The fitting surface of described swelling inner sleeve and swelling overcoat is conical-surface type structure.
Described swelling overcoat is elastic metallic ring.
The swelling hole avris of described swelling inner sleeve also forms and ejects hole.
The cylinder two ends of described belt pulley are equipped with a symmetrical lug.
The height of described lug is greater than the thickness of belt.
The utility model gives prominence to compared to existing technology and useful technique effect is:
1, the utility model is by the main shaft of mair motor forms keyway, linking bond is provided with in keyway, also comprise the belt pulley be fixedly connected on mair motor main shaft, described belt pulley front end forms expanding trough, swelling overcoat is installed in expanding trough, swelling inner sleeve is provided with in swelling overcoat, put in described swelling overcoat and swelling and all form swelling hole, swelling screw is provided with in swelling hole, swelling screw makes electric machine main shaft through swelling hole, swelling inner sleeve, swelling overcoat and belt pulley stick together closely, put in described swelling overcoat and swelling and also all form distortion groove, the internal surface side of swelling inner sleeve forms a keyway matched with linking bond on axle, thus make, expansion sleeve and linking bond dual fixing under, avoid producing skidding,
2, the utility model is conical-surface type structure by the fitting surface of swelling inner sleeve and swelling overcoat, thus makes installation and removal be convenient;
3, the utility model is elastic metallic ring by swelling overcoat, thus makes the easier distending of swelling overcoat, and deformed region scope is large;
4, the utility model is also formed by the swelling hole avris of swelling inner sleeve and ejects hole, makes when dismounting, bolt can be utilized to impact ejecting in hole, thus release swelling overcoat, makes dismounting more convenient;
5, the utility model is equipped with a symmetrical lug by the cylinder two ends of belt pulley, belt pulley is not easily deviate from from both sides, thus ensure that the stability of overall operation.
Accompanying drawing explanation
Fig. 1 is the exploded view of belt pulley expanding structure.
Fig. 2 is the structural representation of belt pulley.
Fig. 3 is the structural representation of swelling overcoat and swelling inner sleeve.
1-mair motor; 2-belt pulley; 3-swelling overcoat; 4-swelling inner sleeve; 5-swelling screw; 6-ejects screw; 7-swelling hole; 8-lug; 9-is out of shape groove; 10-ejects hole.
Embodiment
The utility model is further described with specific embodiment below in conjunction with accompanying drawing:
A kind of belt pulley expanding structure, comprise mair motor 1, the main shaft of mair motor 1 forms keyway, linking bond is provided with in keyway, also comprise the belt pulley 2 be fixedly connected on mair motor 1 main shaft, described belt pulley front end forms expanding trough, swelling overcoat 3 is installed in expanding trough, swelling inner sleeve 4 is provided with in swelling overcoat 3, described swelling overcoat 3 and swelling inner sleeve 4 all form swelling hole 7, swelling screw 5 is provided with in swelling hole 7, swelling screw 5 is through swelling hole 7, swelling overcoat expands to both sides and makes electric machine main shaft, swelling inner sleeve 4, swelling overcoat 3 and belt pulley 2 stick together closely, described swelling overcoat 3 and swelling inner sleeve 4 also all form distortion groove 9, the internal surface side of swelling inner sleeve 4 forms a keyway matched with linking bond on axle.
The fitting surface of described swelling inner sleeve 4 and swelling overcoat 3 is conical-surface type structure.
Described swelling overcoat 3 is elastic metallic ring.
Swelling hole 7 avris of described swelling inner sleeve 4 also forms and ejects hole 10.
The cylinder two ends of described belt pulley 2 are equipped with a symmetrical lug 8.
The height of described lug 8 is greater than the thickness of belt.
The feature that the utility model has that structure is simple, easy accessibility, connection are reliable and stable.
More than show and describe basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (6)
1. a belt pulley expanding structure, comprise mair motor, the main shaft of mair motor forms keyway, linking bond is provided with in keyway, it is characterized in that, also comprise the belt pulley be fixedly connected on mair motor main shaft, described belt pulley front end forms expanding trough, swelling overcoat is installed in expanding trough, swelling inner sleeve is provided with in swelling overcoat, put in described swelling overcoat and swelling and all form several swelling holes, swelling screw is provided with in swelling hole, swelling screw makes electric machine main shaft through swelling hole, swelling inner sleeve, swelling overcoat and belt pulley stick together closely, put in described swelling overcoat and swelling and also all form distortion groove, the internal surface side of swelling inner sleeve forms a keyway matched with linking bond on axle.
2. a kind of belt pulley expanding structure according to claim 1, is characterized in that, the fitting surface of described swelling inner sleeve and swelling overcoat is conical-surface type structure.
3. a kind of belt pulley expanding structure according to claim 1, is characterized in that, described swelling overcoat is elastic metallic ring.
4. a kind of belt pulley expanding structure according to claim 1, is characterized in that, the swelling hole avris of described swelling inner sleeve also forms and ejects hole.
5. a kind of belt pulley expanding structure according to claim 1, is characterized in that, the cylinder two ends of described belt pulley are equipped with a symmetrical lug.
6. a kind of belt pulley expanding structure according to claim 5, is characterized in that, the height of described lug is greater than the thickness of belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520850845.XU CN205101421U (en) | 2015-10-29 | 2015-10-29 | Belt pulley tight structure that expands |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520850845.XU CN205101421U (en) | 2015-10-29 | 2015-10-29 | Belt pulley tight structure that expands |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205101421U true CN205101421U (en) | 2016-03-23 |
Family
ID=55517203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520850845.XU Expired - Fee Related CN205101421U (en) | 2015-10-29 | 2015-10-29 | Belt pulley tight structure that expands |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205101421U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106316091A (en) * | 2016-10-11 | 2017-01-11 | 信义汽车部件（芜湖）有限公司 | Novel glass cutting machine transmission belt |
-
2015
- 2015-10-29 CN CN201520850845.XU patent/CN205101421U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106316091A (en) * | 2016-10-11 | 2017-01-11 | 信义汽车部件（芜湖）有限公司 | Novel glass cutting machine transmission belt |
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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: 20160323 Termination date: 20161029 |