CN104989737A - Shaft coupling - Google Patents
Shaft coupling Download PDFInfo
- Publication number
- CN104989737A CN104989737A CN201510413141.0A CN201510413141A CN104989737A CN 104989737 A CN104989737 A CN 104989737A CN 201510413141 A CN201510413141 A CN 201510413141A CN 104989737 A CN104989737 A CN 104989737A
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- China
- Prior art keywords
- coupling
- main body
- thread part
- locking nut
- external thread
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- 230000008878 coupling Effects 0.000 title claims abstract description 96
- 238000010168 coupling process Methods 0.000 title claims abstract description 96
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 96
- 210000000078 claw Anatomy 0.000 claims abstract description 48
- 239000000463 material Substances 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 5
- 229920003023 plastic Polymers 0.000 claims abstract description 5
- 239000004033 plastic Substances 0.000 claims abstract description 5
- 230000007935 neutral effect Effects 0.000 claims description 8
- 230000001737 promoting effect Effects 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 238000001746 injection moulding Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention relates to a coupler which comprises a coupler main body and two locking nuts, wherein the two locking nuts are respectively arranged at two ends of the coupler main body; and the coupler body is provided with a claw part, and after the locking nut is installed, pressure is applied to the claw part towards the radial inner side, so that the claw part is locked with the shaft. The coupling provided by the invention adopts a structural form that the claw part deforms under stress to press the input and output shafts, and is locked by the locking nut, so that larger torque can be transmitted, and the connection is more reliable; the clamping claw parts are uniformly distributed, the center of mass is centered, and the high-speed rotation requirement is met; the coupler main body and the locking nut can be subjected to injection molding and turning, the material can be plastic or metal, the processing is simple, the cost is low, the structure is compact, the coupler main body and the locking nut are suitable for transmission of small and medium-sized structures, and the application range is relatively wide.
Description
Technical field
The present invention relates to a kind of coupling.
Background technique
Coupling is used to connect two axles in different institutions, makes it jointly to rotate with the mechanical parts of transmitting torque.In the power transmission of high-speed overload, some coupling also has the effect of buffering, vibration damping and raising axle system dynamic performance.General power engine is mostly connected by means of coupling and working machine, and coupling is the most frequently used coupling member of engineering goods axle system transmission.
Tradition coupling is divided into two kinds, and one is compressed axle by two ends screw, the effect of transmitting torque and supporting shaft, and transmitting torque is less, and it is unreliable to support; Barycenter is not placed in the middle, there is larger centrifugal force, be not suitable for high speed rotating when high-speed drive, and processing technology is complicated simultaneously, and cost is higher; Another kind of coupling is made up of lock sleeve, bolt, compressor shaft coupling, intermediate, bolt, motor coupling, and structure is comparatively complicated, and processing cost is high, and structure is comparatively large, and be only applicable to Large-scale machine set connection for transmission, using scope has narrow limitation.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of coupling, to solve technical problem of the prior art.
Coupling provided by the invention, comprises coupling main body and locking nut, and described locking nut is provided with two, and two described locking nuts are mounted to the two ends of described coupling main body respectively; Described coupling main body comprises first, second shaft coupling portion, first, second shaft coupling portion described is arranged on the contrary, first, second shaft coupling portion described comprises first, second external thread part and first, second suit portion respectively, first, second axle center place of suit portion described is respectively equipped with first, second axis hole, and the periphery of first, second axis hole described is respectively arranged with first, second claw portion of elastically deformable; Described locking nut comprises internal thread part and inner cone face, and when described locking nut is connected with first, second external thread part described by described internal thread part, described inner cone face can to radially inner side compressing first, second claw portion described.
Preferably, described coupling main body also comprises auxiliary tight lock part, and described auxiliary tight lock part is arranged on the medium position in first, second shaft coupling portion described, and the external diameter of described auxiliary tight lock part is greater than the external diameter in first, second shaft coupling portion described.
Preferably, the outer side surface of described auxiliary tight lock part is provided with the dentation decorative pattern can promoting friction, or the outer side surface of described auxiliary tight lock part is arranged to multi-plane structure.
Preferably, the thread rotary orientation of first, second external thread part of described coupling main body is contrary.
Preferably, first, second suit portion external diameter described is less than first, second external thread part external diameter described.
Preferably, first, second suit portion described in first, second shaft coupling portion described is separately positioned on the two ends of described coupling main body, and first, second external thread part described is compared first, second suit portion described and arranged near the neutral position of described coupling main body.
Preferably, the one end in first, second claw portion described is connected to the end of first, second external thread part described respectively, one end that first, second claw portion described is not connected with first, second external thread part described is respectively to the formation inclined-plane, outside in first, second suit portion described, and the circular diameter at place, described inclined-plane reduces to the direction away from described coupling main body neutral position gradually by near described coupling main body neutral position.
Preferably, first, second claw section described is not provided with multiple, and is evenly distributed on respectively on the end face of first, second external thread part described.
Preferably, the face that first, second claw section described is not positioned at inside first, second suit portion described is provided with friction part.
Preferably, first, second guide pad is respectively arranged with between first, second claw portion described in adjacent two, first, second guide pad described is separated from each other with first, second claw portion described respectively, and being connected to the end of first, second external thread part described respectively, first, second claw portion described and first, second guide pad form first, second suit portion described respectively.
Preferably, first, second axis hole inside described is respectively arranged with first, second positioning step.
Preferably, the internal diameter of described inner cone face reduces near described internal thread part gradually to the direction away from described internal thread part.
Preferably, the outer side surface of described locking nut is provided with the dentation decorative pattern can promoting friction, or the outer side surface of described locking nut is arranged to multi-plane structure.
Preferably, the material of described coupling main body and locking nut is plastics or metal.
Coupling provided by the invention, is adopted claw portion stress deformation to compress the structural type of input and output shaft, is locked, can transmit larger moment of torsion, connect more reliable by locking nut; Claw portion is uniformly distributed, and barycenter is placed in the middle, is applicable to High Rotation Speed requirement; Coupling main body and locking nut all can adopt injection molding, turnery processing, material to can be plastics or metal, and processing is simple, and cost is lower, and compact structure, be applicable to middle-size and small-size structure driven, using scope is relatively wide.
Accompanying drawing explanation
By referring to the description of accompanying drawing to the embodiment of the present invention, above-mentioned and other objects of the present invention, feature and advantage will be more clear, in the accompanying drawings:
Figure 1 shows that coupling general assembly exploded perspective view;
Figure 2 shows that coupling main body schematic diagram;
Figure 3 shows that coupling main body cross-sectional schematic;
Figure 4 shows that locking nut schematic diagram;
Figure 5 shows that locking nut cross-sectional schematic;
Figure 6 shows that coupling assembly cross-sectional schematic.
Embodiment
Hereinafter with reference to accompanying drawing, various embodiment of the present invention is described in more detail.In various figures, identical element adopts same or similar reference character to represent.For the sake of clarity, the various piece in accompanying drawing is not drawn in proportion.
As shown in Figure 1, coupling provided by the invention comprises coupling main body 1 and locking nut 2, described locking nut 2 is provided with two, and two described locking nuts 2 are mounted to the two ends of described coupling main body 1 respectively, for providing pressure to the locking between described coupling main body 1 and axle.Preferably, the material of described coupling main body 1 and locking nut 2 is plastics or metal.
As shown in Figure 2,3, described coupling main body 1 comprises first, second shaft coupling portion 11,12, and first, second shaft coupling portion 11,12 described is arranged on the contrary, and for being connected with axle, first, second shaft coupling portion 11,12 main body described is cylindric, and axis collinear.First, second shaft coupling portion 11,12 described comprises first, second external thread part 111,121 and first, second suit portion 112,122 respectively, first, second external thread part 111,121 described is separately positioned on the middle position near described coupling main body 1, for installing described locking nut 2, preferably, the thread rotary orientation of first, second external thread part 111,121 described is contrary, the direction of rotation when tightening direction of described locking nut 2 and described coupling main body 1 can be made to work, because inertia makes described locking nut 2 loosen when preventing work.Preferably, the medium position being positioned at first, second external thread part 111,121 described is provided with auxiliary tight lock part 13, described auxiliary tight lock part 13 external diameter is greater than first, second external thread part 111,121 described, described auxiliary tight lock part 13 is for coordinating the use of setting tool, make the dismounting of described locking nut 2 convenient, the outer side surface of described auxiliary tight lock part 13 is preferably provided with the dentation decorative pattern promoting friction, or the outer side surface of described auxiliary tight lock part 13 is arranged to multi-plane structure.First, second suit portion 112,122 described is separately positioned on the middle position away from described coupling main body 1, for being connected with axle, and the external diameter in first, second suit portion 112,122 described is less than the external diameter of first, second external thread part 111,121 described, first, second axle center place of suit portion 112,122 described is respectively arranged with first, second axis hole 116,126, and first, second axis hole 116,126 described is for installation shaft.Described first, second axis hole 116, the periphery of 126 is respectively arranged with first, second claw portion 113, 123, described first, second claw portion 113, one end of 123 is connected to described first respectively, second external thread part 111, the end of 121, described first, second claw portion 113, 123 are respectively arranged with multiple, are preferably respectively arranged with three, and are uniformly distributed, described first, second claw portion 113, 123 with described first, second external thread part 111, 121 one end connected are respectively to described first, second suit portion 112, the formation inclined-plane, outside of 122, and the circular diameter at place, described inclined-plane reduces to the direction away from described coupling main body 1 neutral position gradually by near described coupling main body 1 neutral position respectively, and described first, second claw portion 113, 123 form bevelled one end, can respectively to described first under the effect of certain force, second suit portion 112, the radially inner side of 122 moves, for locking with axle, preferably, and described first, second claw portion 113, 123 with to be coupling tactile one side, be namely positioned at described first, on face inside second suit portion, be provided with friction part (not shown), for increasing the frictional force between axle.Preferably; first, second guide pad 114,124 is also provided with between first, second claw portion 113,123 described in adjacent two; one end of first, second guide pad 114,124 described is connected on the end face of first, second external thread part 111,121 described respectively; and be separated from each other with first, second claw portion 113,123 described respectively; first, second guide portion 114,124 described play the guiding role to axle for during installation shaft; meanwhile, certain protective action is played to first, second claw portion 113,123 described.First, second axis hole 116,126 inside described is respectively arranged with first, second positioning step 115,125, as shown in Figure 3, carrying out axially locating, preventing play when first, second positioning step 115,125 described is for installing to axle.
As shown in Figure 4,5, described locking nut 2 comprises internal thread part 21 and inner cone face 22, the outer side surface of described locking nut 2 is preferably provided with the dentation decorative pattern can promoting friction, or the outer side surface of described locking nut 2 is arranged to multi-plane structure, easy disassembly.Described internal thread part 21 is for being connected with first external thread part 111 or the second external thread part 121 of described coupling main body 1; Described inner cone face 22 is the conical surface formed inside described locking nut 2, and the internal diameter of described inner cone face 22 reduces near described internal thread part 21 gradually to the direction away from described internal thread part 22, described inner cone face 22 is for coordinating with the described first claw portion 113 in described coupling main body 1 or the inclined-plane in the second claw portion 123, radially pressure is to the inside applied to described first claw portion 113 or the second claw portion 123, make it by shaft compression, and then realize connection and the transmission of diaxon.
The using method of coupling provided by the invention is:
Two described locking nuts 2 are set to respectively on two axles of needs connection, and make the end of internal thread part 21 towards axle of described locking nut 2; Again the end of two axles is inserted respectively in first, second axis hole 116,126 in first, second shaft coupling portion 11,12 of described coupling main body 1, and make the end of two axles touch first, second positioning step 115,125 described respectively; Then two described locking nuts 2 are set with in first, second shaft coupling portion 11,12 described, and to be coordinated with described first external thread part 111 or the second external thread part 121 by the internal thread part 21 of described locking nut 2 two described locking nuts 2 are tightened in described coupling main body 1, and described locking nut 2 realizes self-locking by screw thread after tightening, and prevents from coming off.As shown in Figure 6, two described locking nuts 2 are connected respectively to described first by described internal thread part 21, second external thread part 111, on 121, described inner cone face 22 is respectively with described first, second claw portion 113, 123 contacts, and in rundown process, the inner cone face 22 of described locking nut 2 moves to the first external thread part 111 of described coupling main body 1 or the second external thread part 121 with described internal thread part 21, in moving process, described inner cone face 22 diminishes gradually with the diameter of described first claw portion 113 or the second claw portion 123 contact segment, simultaneously, described first claw portion 113 or the second claw portion 123 become large gradually with described inner cone face 22 contact segment place diameter of a circles, described first claw portion 113 or the second claw portion 123 is made to be subject to the pressure inside described first shaft coupling portion 11 or the second shaft coupling portion 12, thus make described first, second claw portion 113, 123 lock respectively and between two axles, thus realize connection and the transmission of diaxon.Preferably, in disassembly process, available setting tool is fixed described coupling main body 1 by described auxiliary tight lock part 13, then installs described locking nut 2 or removes.
Coupling provided by the invention is installed or is removed convenient and swift, compact structure, and processing technology is simple, and manufacture cost is lower.And this coupling realizes the locking with axle by three described first claw portions 113 or the second claw portion 123, connect reliable, and can ensure that barycenter is placed in the middle, the requirement that high rotating speed connects can be met.
Should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or control panel, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.
Last it is noted that obviously, above-described embodiment is only for example of the present invention is clearly described, and the restriction not to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all mode of executions.And thus the apparent change of amplifying out or variation be still among protection scope of the present invention.
Claims (14)
1. a coupling, is characterized in that, comprises coupling main body and locking nut, and described locking nut is provided with two, and two described locking nuts are mounted to the two ends of described coupling main body respectively; Described coupling main body comprises first, second shaft coupling portion, first, second shaft coupling portion described is arranged on the contrary, first, second shaft coupling portion described comprises first, second external thread part and first, second suit portion respectively, first, second axle center place of suit portion described is respectively equipped with first, second axis hole, and the periphery of first, second axis hole described is respectively arranged with first, second claw portion of elastically deformable; Described locking nut comprises internal thread part and inner cone face, and when described locking nut is connected with first, second external thread part described by described internal thread part, described inner cone face can to radially inner side compressing first, second claw portion described.
2. coupling according to claim 1, it is characterized in that, described coupling main body also comprises auxiliary tight lock part, and described auxiliary tight lock part is arranged on the medium position in first, second shaft coupling portion described, and the external diameter of described auxiliary tight lock part is greater than the external diameter in first, second shaft coupling portion described.
3. coupling according to claim 2, is characterized in that, the outer side surface of described auxiliary tight lock part is provided with the dentation decorative pattern can promoting friction, or the outer side surface of described auxiliary tight lock part is arranged to multi-plane structure.
4. coupling according to claim 1, is characterized in that, the thread rotary orientation of first, second external thread part of described coupling main body is contrary.
5. coupling according to claim 1, is characterized in that, first, second suit portion external diameter described is less than first, second external thread part external diameter described.
6. coupling according to claim 1, it is characterized in that, first, second suit portion described in first, second shaft coupling portion described is separately positioned on the two ends of described coupling main body, and first, second external thread part described is compared first, second suit portion described and arranged near the neutral position of described coupling main body.
7. coupling according to claim 1, it is characterized in that, the one end in first, second claw portion described is connected to the end of first, second external thread part described respectively, one end that first, second claw portion described is not connected with first, second external thread part described is respectively to the formation inclined-plane, outside in first, second suit portion described, and the circular diameter at place, described inclined-plane reduces to the direction away from described coupling main body neutral position gradually by near described coupling main body neutral position.
8. coupling according to claim 7, is characterized in that, first, second claw section described is not provided with multiple, and is evenly distributed on respectively on the end face of first, second external thread part described.
9. coupling according to claim 7, is characterized in that, first, second claw section described is not positioned on the face inside first, second suit portion described and is provided with friction part.
10. coupling according to claim 1, it is characterized in that, first, second guide pad is respectively arranged with between first, second claw portion described in adjacent two, first, second guide pad described is separated from each other with first, second claw portion described respectively, and being connected to the end of first, second external thread part described respectively, first, second claw portion described and first, second guide pad form first, second suit portion described respectively.
11. coupling according to claim 1, is characterized in that, first, second axis hole inside described is respectively arranged with first, second positioning step.
12. coupling according to claim 1, is characterized in that, the internal diameter of described inner cone face reduces near described internal thread part gradually to the direction away from described internal thread part.
13. coupling according to claim 1, is characterized in that, the outer side surface of described locking nut is provided with the dentation decorative pattern can promoting friction, or the outer side surface of described locking nut is arranged to multi-plane structure.
14. coupling according to claim 1, is characterized in that, the material of described coupling main body and locking nut is plastics or metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510413141.0A CN104989737B (en) | 2015-07-14 | 2015-07-14 | Shaft coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510413141.0A CN104989737B (en) | 2015-07-14 | 2015-07-14 | Shaft coupling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104989737A true CN104989737A (en) | 2015-10-21 |
| CN104989737B CN104989737B (en) | 2018-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510413141.0A Expired - Fee Related CN104989737B (en) | 2015-07-14 | 2015-07-14 | Shaft coupling |
Country Status (1)
| Country | Link |
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| CN (1) | CN104989737B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083935A (en) * | 2018-09-21 | 2018-12-25 | 深圳供电局有限公司 | Heavy load driving device |
| CN110645329A (en) * | 2019-09-23 | 2020-01-03 | 江苏精研科技股份有限公司 | Folding driving device for automatic folding screen mobile phone |
| CN112963461A (en) * | 2021-05-07 | 2021-06-15 | 南京航空航天大学 | Stepless adjustable self-centering claw coupling for connecting aperture |
| CN113373559A (en) * | 2020-03-09 | 2021-09-10 | 卓郎纺织解决方案两合股份有限公司 | Torque transmission device |
| CN114532827A (en) * | 2022-04-06 | 2022-05-27 | 深圳车泰斗科技有限公司 | Cutter dismounting device and juice extractor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6124821A (en) * | 1984-07-12 | 1986-02-03 | Masanori Mochizuki | Shaft coupling |
| US5695297A (en) * | 1996-09-11 | 1997-12-09 | Fenner, Inc. | Mounting device |
| CN101298877A (en) * | 2007-05-01 | 2008-11-05 | 江苏林海动力机械集团公司 | Two-stage interference coupling components for engine |
| CN102767575A (en) * | 2012-07-26 | 2012-11-07 | 无锡市华利达机电制造有限公司 | Threaded coupling |
| CN204061585U (en) * | 2014-07-11 | 2014-12-31 | 玉石塑粉有限公司 | For connecting the connecting sleeve of live axle and output shaft |
| CN204805359U (en) * | 2015-07-14 | 2015-11-25 | 珠海格力电器股份有限公司 | Shaft coupling |
-
2015
- 2015-07-14 CN CN201510413141.0A patent/CN104989737B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6124821A (en) * | 1984-07-12 | 1986-02-03 | Masanori Mochizuki | Shaft coupling |
| US5695297A (en) * | 1996-09-11 | 1997-12-09 | Fenner, Inc. | Mounting device |
| CN101298877A (en) * | 2007-05-01 | 2008-11-05 | 江苏林海动力机械集团公司 | Two-stage interference coupling components for engine |
| CN102767575A (en) * | 2012-07-26 | 2012-11-07 | 无锡市华利达机电制造有限公司 | Threaded coupling |
| CN204061585U (en) * | 2014-07-11 | 2014-12-31 | 玉石塑粉有限公司 | For connecting the connecting sleeve of live axle and output shaft |
| CN204805359U (en) * | 2015-07-14 | 2015-11-25 | 珠海格力电器股份有限公司 | Shaft coupling |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083935A (en) * | 2018-09-21 | 2018-12-25 | 深圳供电局有限公司 | Heavy load driving device |
| CN109083935B (en) * | 2018-09-21 | 2023-08-25 | 深圳供电局有限公司 | Heavy load driving device |
| CN110645329A (en) * | 2019-09-23 | 2020-01-03 | 江苏精研科技股份有限公司 | Folding driving device for automatic folding screen mobile phone |
| CN113373559A (en) * | 2020-03-09 | 2021-09-10 | 卓郎纺织解决方案两合股份有限公司 | Torque transmission device |
| CN112963461A (en) * | 2021-05-07 | 2021-06-15 | 南京航空航天大学 | Stepless adjustable self-centering claw coupling for connecting aperture |
| CN114532827A (en) * | 2022-04-06 | 2022-05-27 | 深圳车泰斗科技有限公司 | Cutter dismounting device and juice extractor |
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| Publication number | Publication date |
|---|---|
| CN104989737B (en) | 2018-03-13 |
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