CN108071704B - Anti-torsion coupling - Google Patents
Anti-torsion coupling Download PDFInfo
- Publication number
- CN108071704B CN108071704B CN201711024453.8A CN201711024453A CN108071704B CN 108071704 B CN108071704 B CN 108071704B CN 201711024453 A CN201711024453 A CN 201711024453A CN 108071704 B CN108071704 B CN 108071704B
- Authority
- CN
- China
- Prior art keywords
- transition section
- deformation part
- deformation
- coupling
- coupler
- 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.)
- Active
Links
- 230000008878 coupling Effects 0.000 title claims description 21
- 238000010168 coupling process Methods 0.000 title claims description 21
- 238000005859 coupling reaction Methods 0.000 title claims description 21
- 230000007704 transition Effects 0.000 claims abstract description 24
- 238000005520 cutting process Methods 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 12
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 229910000639 Spring steel Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910052755 nonmetal Inorganic materials 0.000 claims description 2
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
Abstract
The invention provides a torsion-resistant coupler, which comprises a coupler body, wherein the coupler body comprises a middle deformation part and fixing parts at two ends; the fixing part comprises a connecting section and a transition section, the transition section is of a cone-shaped structure, and one end of the transition section with a large diameter is positioned at one side of the deformation part; a spiral cutting groove is formed in the transition section along the circumferential direction; the inner wall of the fixing part is provided with a metal connecting sleeve, and a connecting hole is formed in the part of the metal connecting sleeve extending out of the outer end of the fixing part. The invention has simple structure and reasonable design, the fixing part is used for being connected with an external shaft body, the deformation part has good structural strength and strong torsion resistance, and the coupler is not easy to damage under the complex working conditions of tension, torsion and the like, and has stable and reliable work and long service life.
Description
Technical Field
The invention belongs to the technical field of mechanical equipment, and particularly relates to a torsional coupling.
Background
In the existing industrial production technology, a few lighter precise rotating accessories are often required to be connected with rotating devices such as a motor main shaft and the like, so that two shafts in different mechanisms are connected to rotate together to transmit torque, and in high-speed and heavy-load power transmission, the functions of buffering, damping and improving the dynamic performance of a shaft system are achieved. A coupling is a mechanical part for coupling two shafts (a driving shaft and a driven shaft) in different mechanisms to rotate together to transmit torque. Under the working conditions of large impact load and frequent reversing, the coupler is stressed in severe condition, and is subjected to various acting forces such as tension and torsion, so that the coupler is easy to damage, equipment failure is easy to cause once the coupler is damaged, and even safety accidents are easy to cause.
Disclosure of Invention
The present invention is directed to overcoming the above-mentioned drawbacks of the prior art and providing a torsional coupling.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
the torsional coupler comprises a coupler body, wherein the coupler body comprises a middle deformation part and fixing parts at two ends; the fixing part comprises a connecting section and a transition section, the transition section is of a cone-shaped structure, and one end of the transition section with a large diameter is positioned at one side of the deformation part; a spiral cutting groove is formed in the transition section along the circumferential direction; the inner wall of the fixing part is provided with a metal connecting sleeve, and a connecting hole is formed in the part of the metal connecting sleeve extending out of the outer end of the fixing part.
Further, the deformation part and the fixing parts at the two ends are of an integrated structure.
Further, the coupling body is made of rubber materials.
Further, the depth of the spiral cutting groove is 1/3-1/2 of the wall thickness of the transition section.
Further, the deformation part is of a corrugated tubular structure, and the crest height of the deformation part is larger than the trough height.
Further, a reinforcing ring is arranged at the peak position of the deformation part.
Further, the reinforcing ring is disposed inside the peak.
Further, the reinforcing ring is a metal ring made of spring steel or a non-metal ring with high elasticity.
Compared with the prior art, the invention has the following advantages:
(1) The invention has simple structure and reasonable design, the fixing part is used for being connected with an external shaft body, the deformation part has good structural strength and strong torsion resistance, and the coupler is not easy to damage under the complex working conditions of tension, torsion and the like, and has stable and reliable work and long service life.
(2) The depth of the spiral cutting groove is 1/3-1/2 of the wall thickness of the transition section. Not only ensures that the transition section is not easy to break, but also can exert better torsion resistance effect.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute an undue limitation on the invention. In the drawings:
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a cross-sectional view of the structure created by the present invention.
Reference numerals illustrate:
1-a deformation part; 2-a fixing part; 3-connecting sections; 4-transition section; 5-spiral cutting grooves; 6-a metal connecting sleeve; 7-connecting holes; 8-reinforcing rings; 9-wave crest; 10-trough.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
In the description of the invention, it should be understood that the terms "center," "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships that are based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the invention and simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operate in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art in a specific case.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
A torsion-resistant coupling, as shown in fig. 1 to 2, comprises a coupling body including a deformation portion 1 in the middle and fixing portions 2 at both ends; the fixing part 2 comprises a connecting section 3 and a transition section 4, the transition section 4 is of a cone-shaped structure, and one end of the transition section with a large diameter is positioned at one side of the deformation part 1; a spiral cutting groove 5 is formed in the transition section along the circumferential direction; the inner wall of the fixed part 2 is provided with a metal connecting sleeve 6, and a connecting hole 7 is arranged on the part of the metal connecting sleeve 6 extending out of the outer end of the fixed part.
The deformation part 1 and the fixing parts 2 at the two ends are of an integrated structure, so that the structure is high in structural strength and good in stability, stress concentration at the joint can not occur due to the integrated structural design, and the service life is longer.
The coupler body is made of rubber materials, has certain flexibility, has deformation capability when being subjected to torsion, and is not easy to damage.
The depth of the helical cutting flutes 5 is preferably 1/3 to 1/2 of the wall thickness of the transition section 4. Because the depth of the spiral cutting groove is not too deep, if the groove depth is too large, the transition section is easy to break at the spiral cutting groove when in tension or torsion, and if the groove depth is too small, the good torsion resistance and tensile deformation resistance of the spiral cutting groove cannot be exerted, and the optimal torsion resistance effect cannot be achieved.
It should be noted that, the transition section department is equipped with spiral cut groove 5, and it cooperates with deformation portion 1, has effectively improved the antitorque ability of this shaft coupling, and the transition section has alleviateed the burden when deformation portion atress, has equivalent to sharing a part torsion, guarantees that deformation portion atress is balanced, and the shaft coupling is not fragile.
The deformation part 1 is in a corrugated tubular structure, and the height of the wave crest 9 is larger than that of the wave trough 10. Because deformation on the outer circumferential surface of the coupler is larger than deformation on the inner side of the coupler when bending or torsion occurs, the outer circumferential surface needs to have higher structural strength, the outer circumferential surface can generate larger deformation than the inner side, the integral stable operation of the coupler can be better ensured, and the coupler is not easy to damage. Therefore, the height of the wave peak is larger than that of the wave trough, so that the wave peak can generate larger deformation relative to the wave trough, and meanwhile, the section at the wave peak is larger than that at the wave trough, so that the strength of the wave peak is improved.
The deformation portion 1 has a reinforcing ring 8 at a peak position. The stiffening ring 8 is preferably arranged inside the wave crest. Through the strengthening ring that sets up, effectual torsional capacity that improves deformation portion outer circumference department, and shock resistance also obtains obviously strengthening, and the shaft coupling is difficult for breaking in the crest position of deformation position, has ensured its permanent life.
Typically, the reinforcing ring 8 is a metal ring of spring steel or a highly elastic nonmetallic ring. Because the reinforcing piece also has certain deformation capacity, the deformation quantity of the deformation part is not influenced when the deformation part is stressed, and the deformation part complement each other, so that the torsion resistance of the coupler is greatly improved.
The invention has simple structure and reasonable design, the fixing parts at the two ends of the deformation part are used for being connected with the external shaft body, the deformation part has good structural strength and strong torsion resistance, and the coupler is not easy to damage under the complex working conditions of tension, torsion and the like, and has stable and reliable work and long service life.
The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A torsional coupling, characterized in that:
the coupling comprises a coupling body, wherein the coupling body comprises a middle deformation part and fixing parts at two ends; the fixing part comprises a connecting section and a transition section, the transition section is of a cone-shaped structure, and one end of the transition section with a large diameter is positioned at one side of the deformation part; a spiral cutting groove is formed in the transition section along the circumferential direction; the inner wall of the fixing part is provided with a metal connecting sleeve, and a connecting hole is formed in the part of the metal connecting sleeve extending out of the outer end of the fixing part; the depth of the spiral cutting groove is 1/3-1/2 of the wall thickness of the transition section; the deformation part and the fixing parts at the two ends are of an integrated structure; the coupling body is made of rubber materials.
2. A torsional coupling as defined in claim 1, wherein:
the deformation part is of a corrugated tubular structure, and the crest height of the deformation part is larger than the trough height.
3. A torsional coupling as defined in claim 2, wherein:
and a reinforcing ring is arranged at the crest position of the deformation part.
4. A torsional coupling as claimed in claim 3, characterized in that:
the reinforcing ring is arranged inside the wave crest.
5. A torsional coupling as claimed in claim 3, characterized in that:
the reinforcing ring is a metal ring made of spring steel or a high-elasticity nonmetal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711024453.8A CN108071704B (en) | 2017-10-27 | 2017-10-27 | Anti-torsion coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711024453.8A CN108071704B (en) | 2017-10-27 | 2017-10-27 | Anti-torsion coupling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108071704A CN108071704A (en) | 2018-05-25 |
| CN108071704B true CN108071704B (en) | 2024-01-30 |
Family
ID=62159294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711024453.8A Active CN108071704B (en) | 2017-10-27 | 2017-10-27 | Anti-torsion coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108071704B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB564963A (en) * | 1943-07-31 | 1944-10-20 | Peter Warborn Thornhill | Improvements in or relating to universal joints |
| US6413164B1 (en) * | 1998-03-19 | 2002-07-02 | Chr. Mayr Gmbh & Co. Kg | Torsionally rigid, play-free, flexible metal bellows-type coupling for the torque-transmissive connection of two shafts |
| JP2002372068A (en) * | 2001-06-15 | 2002-12-26 | Miki Pulley Co Ltd | Flexible coupling |
| CN203730591U (en) * | 2014-02-27 | 2014-07-23 | 天津龙创恒盛实业有限公司 | High-torque rigid corrugated pipe coupler |
| TW201621166A (en) * | 2014-07-22 | 2016-06-16 | Heishin Ltd | Uniaxial eccentric screw pump |
| CN106351974A (en) * | 2016-09-28 | 2017-01-25 | 珠海格力电器股份有限公司 | Coupler and internal insert thereof |
| CN207569091U (en) * | 2017-10-27 | 2018-07-03 | 天津包博特密封科技有限公司 | A kind of antitorque shaft coupling |
-
2017
- 2017-10-27 CN CN201711024453.8A patent/CN108071704B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB564963A (en) * | 1943-07-31 | 1944-10-20 | Peter Warborn Thornhill | Improvements in or relating to universal joints |
| US6413164B1 (en) * | 1998-03-19 | 2002-07-02 | Chr. Mayr Gmbh & Co. Kg | Torsionally rigid, play-free, flexible metal bellows-type coupling for the torque-transmissive connection of two shafts |
| JP2002372068A (en) * | 2001-06-15 | 2002-12-26 | Miki Pulley Co Ltd | Flexible coupling |
| CN203730591U (en) * | 2014-02-27 | 2014-07-23 | 天津龙创恒盛实业有限公司 | High-torque rigid corrugated pipe coupler |
| TW201621166A (en) * | 2014-07-22 | 2016-06-16 | Heishin Ltd | Uniaxial eccentric screw pump |
| CN106351974A (en) * | 2016-09-28 | 2017-01-25 | 珠海格力电器股份有限公司 | Coupler and internal insert thereof |
| CN207569091U (en) * | 2017-10-27 | 2018-07-03 | 天津包博特密封科技有限公司 | A kind of antitorque shaft coupling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108071704A (en) | 2018-05-25 |
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