CN111828494B - Flexible coupling - Google Patents
Flexible coupling Download PDFInfo
- Publication number
- CN111828494B CN111828494B CN202010746605.0A CN202010746605A CN111828494B CN 111828494 B CN111828494 B CN 111828494B CN 202010746605 A CN202010746605 A CN 202010746605A CN 111828494 B CN111828494 B CN 111828494B
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- clamping
- flexible coupling
- clamping block
- shaft
- intermediate shaft
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- 230000008878 coupling Effects 0.000 title claims abstract description 51
- 238000010168 coupling process Methods 0.000 title claims abstract description 51
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 51
- 230000005540 biological transmission Effects 0.000 claims abstract description 42
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 17
- 238000007789 sealing Methods 0.000 description 7
- 230000003068 static effect Effects 0.000 description 5
- 230000007306 turnover Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000013598 vector Substances 0.000 description 1
Classifications
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- 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
- F16D3/70—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 comprising elastic elements arranged in holes in one coupling part and surrounding pins on the other coupling part
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- 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
- F16D3/72—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 with axially-spaced attachments to the coupling parts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
Abstract
The invention relates to a flexible coupling in the technical field of couplings, which comprises a transmission shaft, a clamping block, an intermediate shaft and a torsion spring, wherein the transmission shaft is connected with the clamping block; clamping grooves are respectively formed in two ends of the intermediate shaft, two groups of clamping blocks are respectively connected with the clamping grooves, and a containing position is arranged between the end part of each clamping block positioned in each clamping groove and the bottom of each clamping groove; the end part of the transmission shaft is provided with a ball head, the ball head is placed in the clamping block, and the ball head and the clamping block are respectively provided with a shaft hole and a connecting hole; the torsional spring is sleeved on the intermediate shaft at the connection position of the clamping block and the clamping groove, one end of the torsional spring passes through the connection hole and the shaft hole, and the other end of the torsional spring rotates by a preset angle and then passes through the holding position between the clamping block and the clamping groove. The flexible coupling capable of aligning solves the problems that an existing flexible coupling is complex in structure, large in size and small in absorption concentricity.
Description
Technical Field
The invention relates to the technical field of couplings, in particular to a flexible coupling, and particularly relates to a cross-shaped flexible coupling capable of aligning.
Background
Common flexible couplings used between driving equipment and driven equipment at present in China comprise diaphragm couplings, tooth couplings, plum blossom elastic couplings and the like.
The diaphragm type coupling in the flexible coupling has longer appearance, heavier weight, more difficult installation, high cost and smaller absorption coaxial deviation. The gear of the tooth-type coupling has high requirements on machining precision, higher requirements on technical level of machining personnel and higher cost. The quincuncial elastic coupling is suitable for occasions where other vectors are positioned except the driving equipment and the driven equipment transmission shafts which can rotate. The coupler has the advantages of complex structure, large volume, high processing cost and small absorption concentricity.
According to the prior art, the Chinese patent publication No. CN104235210B discloses an Oldham coupling, a static sealing flange 3 is fixedly arranged in a central hole at the left end of a shell 1 by a connecting bolt 12, a turnover shaft 2 is movably arranged in the static sealing flange 3 in a penetrating manner, a flange bearing seat 10 is fixedly arranged in a central hole at the right end of the shell 1 by the connecting bolt 12, a swing rod connecting shaft 11 is arranged in the flange bearing seat 10 and a bearing 9 in a penetrating manner, the turnover shaft 2 is connected with the swing rod connecting shaft 11 by an Oldham coupling sliding block 6, the Oldham coupling sliding block 6 is in a stepped cylinder shape, a static sealing ring 4 is arranged in a circular groove at the right end face of the static sealing flange 3, a movable sealing ring 5 is arranged in a circular groove at the left end face of the Oldham coupling sliding block 6, the static sealing ring 4 and the movable sealing ring 5 are both sleeved on the turnover shaft 2, the Oldham coupling has a simple structure, the production environment is purified, and the service life of equipment is prolonged. The patent suffers from the above-mentioned related problems.
Disclosure of Invention
In view of the drawbacks of the prior art, an object of the present invention is to provide a flexible coupling.
The invention provides a flexible coupling which comprises a transmission shaft, a clamping block, an intermediate shaft and a torsion spring, wherein the transmission shaft is connected with the clamping block;
clamping grooves are respectively formed in two ends of the intermediate shaft, two groups of clamping blocks are respectively connected with the clamping grooves, and a containing position is arranged between the end part of each clamping block positioned in each clamping groove and the bottom of each clamping groove;
the end part of the transmission shaft is provided with a ball head, the ball head is placed in the clamping block, and the ball head and the clamping block are respectively provided with a shaft hole and a connecting hole;
the torsional spring is sleeved on the intermediate shaft at the connection position of the clamping block and the clamping groove, one end of the torsional spring passes through the connection hole and the shaft hole, and the other end of the torsional spring rotates by a preset angle and then passes through the holding position between the clamping block and the clamping groove.
In some embodiments, the intermediate shaft is a cylindrical barrel structure.
In some embodiments, the clamping block is provided with a circular ring end part and two clamping parts.
In some embodiments, the clamping groove is a U-shaped groove.
In some embodiments, the two clamping grooves at two ends of the middle shaft are arranged in a staggered manner in a non-parallel manner.
In some embodiments, the two clamping grooves are perpendicular to each other.
In some embodiments, the torsion spring is a cross-shaped torsion spring
In some embodiments, the contact surface between the clamping portion and the side surface of the clamping groove is an arc concave-convex combination surface.
In some embodiments, the end surface of the clamping portion is an arc concave surface or an arc convex surface.
In some embodiments, the intermediate shaft is stainless steel.
Compared with the prior art, the invention has the following beneficial effects:
1. the flexible coupling capable of aligning is simple in structure, can achieve the technical effect of absorbing large concentricity, and solves the problems that an existing flexible coupling is complex in structure, large in size and small in concentricity.
2. According to the invention, through the optimized arrangement of the clamping groove structure on the intermediate shaft, the deformation of the intermediate shaft is reduced, and the transmission effect of the flexible coupling is improved.
3. According to the invention, through optimizing the matching structure of the clamping block and the clamping groove, on one hand, the straight torsion arm of the torsion spring can enter conveniently, and meanwhile, a good fixing effect is achieved, on the other hand, the matching performance of the contact surface of the clamping block and the clamping groove is improved, and the transmission effect is improved.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic view of the overall structure of a flexible coupling of the present invention;
FIG. 2 is a cross-sectional view of the overall structure of the flexible coupling of the present invention;
fig. 3 is an exploded view of the overall structure of the flexible coupling of the present invention.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention.
Example 1
The invention provides a flexible coupling which comprises a transmission shaft 1, a clamping block 2, an intermediate shaft 3 and a torsion spring 4, wherein the transmission shaft 1 comprises two transmission shafts, one transmission shaft is an input shaft, and the other transmission shaft is an output shaft. The transmission shaft 1 is a rotating shaft with a ball head 10 structure, the transmission shaft 1 is used as a power input and output component of a coupler, a shaft hole 101 is arranged on the ball head 10, and the shaft hole 101 is used for being matched with a corresponding structure of the clamping block 2.
The cartridge 2 serves as an intermediate connection of the coupling, transmitting an input torque of the transmission shaft 1 as an input shaft to the intermediate shaft 3, and simultaneously transmitting a torque obtained through the intermediate shaft 3 to the transmission shaft 1 as an output shaft. At least one end of the clamping block 2 is an open end and is provided with a containing space for containing the ball head 10 of the transmission shaft 1, meanwhile, the clamping block 2 is provided with a connecting hole 20, and when the ball head at the end part of the transmission shaft 1 enters the clamping block 2, the shaft hole 101 of the clamping block is overlapped with the axis of the connecting hole 20. The clip 2 is provided with a clip portion 22 that is connected to the intermediate shaft 3.
The intermediate shaft 3 is used as a power torque intermediate piece, clamping grooves 30 are formed in the intermediate shaft, the number of the clamping grooves 30 is two, and the clamping grooves are respectively located at two ends of the intermediate shaft 3. The clamping groove 30 is formed by extending downwards from the end surface of the intermediate shaft 3 by a certain distance, the clamping part 22 on the clamping block 2 is in fit and clamping connection with the clamping groove 30, and a gap is reserved between the end part of the clamping part 22 and the bottom of the clamping groove 30 and is used as a holding position of one of the straight torsion arms of the torsion spring 4. Preferably, the outer circumferential surface of the engagement portion 22 matches the outer circumferential surface of the intermediate shaft 3, i.e. the shape of the engagement portion 22 matches the shape of the intermediate shaft 3.
The torsion spring 4 comprises two pre-tightening connecting pieces which are respectively used as a power input part and a power output part, and two straight torsion arms are respectively arranged at two ends of the torsion spring 4. Firstly, the torsion spring 4 is sleeved on the intermediate shaft 3, a ball head 10 of a transmission shaft 1 serving as an input shaft enters the clamping block 2, after a clamping part 22 of the clamping block 2 is in adaptive connection with a clamping groove 30 on the intermediate shaft 3, a straight torsion arm at one end of the torsion spring 4 sequentially passes through a connecting hole 20 at one end of the clamping block 2, a shaft hole 101 and a connecting hole 20 at the other end of the clamping block 2, the transmission shaft 1 is connected with the clamping block 2, a straight torsion arm at the other end of the torsion spring 4 is inserted into a containing position between the end of the clamping block 2 in the clamping groove 3 and the bottom of the clamping groove 3 and penetrates through the containing position after rotating by a certain angle, and after two straight torsion arms of the torsion spring 4 are respectively inserted into corresponding holes, the straight torsion arm has certain pretightening force.
Likewise, the drive shaft 1, the latch 2, the intermediate shaft 3, and the torsion spring 4 as the power input portion are connected in the same manner as the drive shaft 1, the latch 2, the intermediate shaft 3, and the torsion spring 4 as the power output portion.
The working principle of the flexible coupling of the invention is as follows: the transmission shaft 1 as power input transmits the received torsion to the clamping block 2 through the straight torsion arm of the torsion spring 4, the torsion is transmitted to the intermediate shaft 3 through the matching contact of the clamping part 22 of the clamping block 2 and the clamping groove 30 on the intermediate shaft 3, the intermediate shaft 3 transmits the torsion to the straight torsion arm of the other torsion spring 4 through the matching of the clamping groove 30 at the other end and the clamping part 22, and then the torsion is transmitted to the transmission shaft 1 as an output shaft through the straight torsion arm, so that the output of the torsion is completed. In the process, two straight torsion arms of the torsion spring 4 play a role in transmitting torsion through connecting the transmission shaft 1 and the clamping block 2, and provide a support rod for eccentric swing of the transmission shaft 1, namely, the straight torsion arm provides a support rod for swing of the transmission shaft 1 through passing through a shaft hole on the ball head 1, so that swing with larger amplitude is realized, good transmission effect is still maintained under the condition that the concentricity difference between an input shaft and an output shaft is larger, and the non-concentricity can be absorbed to be larger. Meanwhile, the other straight torsion arm of the same torsion spring 4 enters the holding position between the end part of the clamping part 22 and the bottom of the clamping groove 30 after rotating by a certain preset angle, and the joint surface of the clamping block 2 and the clamping groove 30 is in close contact by the pretightening force of the torsion spring 4, so that the effect of torque force transmission is ensured. The flexible coupling capable of aligning is simple in structure, can achieve the technical effect of absorbing large concentricity, and solves the problems that an existing flexible coupling is complex in structure, large in size and small in concentricity.
In the preferred embodiment, the whole transmission shaft 1 is of a boss structure, a main body of the transmission shaft 1 is in transitional connection with a ball head 10 at the end part, and the diameter of the cylinder is smaller than that of the ball head 10, so that eccentric swing of the transmission shaft 1 is conveniently realized.
In a preferred embodiment, the clamping block 2 comprises a circular ring end part 21 and a clamping part 22, the clamping parts 22 are symmetrically arranged on the circular ring end part 21, the cross section of the clamping block 2 formed by the circular ring end part 21 and the clamping part 22 is of an approximate U-shaped structure, and the two clamping parts 22 are provided with coaxial connecting holes 20.
In a preferred embodiment, the intermediate shaft 3 is a cylindrical structure, and the cylindrical structure may be a cylinder, a prism, or the like. The intermediate shaft can be made of stainless steel and the like, so that the overall weight of the flexible coupling is reduced and the power loss is reduced under the condition of meeting the rigidity.
Example 2
In embodiment 2, the transmission effect of the flexible coupling is improved by optimizing the structure of the clamping groove on the intermediate shaft based on embodiment 1. The specific explanation is as follows:
the clamping groove 30 provided on the intermediate shaft 3 is preferably a U-shaped groove. When the clamping groove 30 is of a U-shaped groove structure, the transitional joint is in arc transition, so that the damage to the clamping groove transitional structure due to the impact of large torsion can be avoided. Further, the two U-shaped clamping grooves 30 at two ends of the intermediate shaft 3 are arranged in a staggered manner in a non-parallel manner, that is, the two clamping grooves 30 are located at the middle parts of two ends of the intermediate shaft 3, but the two clamping grooves 30 are not located on the same plane, the two clamping grooves 30 can be parallel only by rotating the clamping groove 30 at one end of the intermediate shaft 3 by a certain angle, and the rotating angle of the clamping groove 30 is less than or equal to 90 °, for example, the two clamping grooves 30 can be located at two ends of the intermediate shaft 3 in a staggered manner by 30 °, 45 °, 60 ° and 90 ° or other angles. Particularly preferably, the two clamping grooves 30 on the intermediate shaft 3 exist in a vertical mode, namely, the two clamping grooves 30 are staggered by 90 degrees on the intermediate shaft 3, so that the thickness of the intermediate shaft 3 part between the bottoms of the two clamping grooves 30 is maximum, the deformation of the intermediate shaft 3 in the torque transmission process is reduced to the greatest extent, and the transmission ratio is improved. When the two clamping grooves 30 on the intermediate shaft 3 are in a vertical mode, the torsion springs 4 are preferably cross-shaped torsion springs, namely, the straight torsion arms at the two ends of the torsion springs 4 are mutually vertical to form a cross-shaped structure. After the straight torsion arm at one end of the torsion spring 4 connects the transmission shaft 1 with the clamping block 2 through the connecting hole 20 and the shaft hole 101, the straight torsion arm at the other end of the torsion spring passes through the holding position between the end of the clamping part 22 and the bottom of the clamping groove 30 in a rotating 90-degree mode, so that the torsion spring 4 tightly fits the clamping block 2 with the clamping groove 30 in a good pretightening force.
Example 3
The embodiment 3 is formed on the basis of the embodiment 1 or the embodiment 2, and mainly optimizes the matching structure of the clamping block and the clamping groove, so that on one hand, the straight torsion arm of the torsion spring can enter conveniently, and meanwhile, a good fixing effect is achieved, on the other hand, the matching performance of the contact surface of the clamping block and the clamping groove is improved, and the transmission effect is improved. The specific explanation is as follows:
the bottom of the clamping groove 30 is of an arc-shaped structure, when the clamping groove 30 is a U-shaped groove, the bottom of the clamping groove 30 is naturally a U-shaped clamping groove, and when the clamping groove is a non-U-shaped groove, the bottom of the clamping groove 30 is manufactured into an arc-shaped transition structure through a corresponding process. Meanwhile, the end part of the clamping part 22 of the clamping block 2 is designed into an arc surface, the arc protruding direction of the clamping block can deviate from the direction of the bottom of the clamping groove 30, and at the moment, the arc bottom of the clamping groove 30 and the arc end part of the clamping part 22 form a non-closed round hole structure, so that the clamping block can conveniently enter through the straight torsion arm and simultaneously can also play a good limiting role. In addition, the locking device can also protrude towards the direction close to the bottom of the clamping groove 30, at this time, the arc bottom of the clamping groove 30 and the arc end of the clamping part 22 form a crescent-like structure, and the locking device can play an effective fixing and limiting role after the straight torsion arm enters.
In the preferred embodiment, the engaging portion 22 of the latch 2 is in contact with the side surface of the latch groove 30 by an arcuate surface. If the concave arc-shaped surface is arranged on the clamping portion 22, the side surface of the clamping groove 30 matched with the clamping portion 22 is an outwards convex arc-shaped surface, and the clamping groove and the clamping portion are contacted in a matched manner, after the pretightening force is applied by the torsion spring 4, the attaching effect of the two contact surfaces of the clamping portion 22 and the clamping groove 30 is far higher than that of the mode of planar contact, so that the adverse effects such as abrasion and impact among internal components of the flexible coupling are reduced, and the torque transmission effect is remarkably improved.
In summary, the flexible coupling capable of aligning provided by the invention has a simple structure, can realize the technical effect of absorbing large concentricity, and solves the problems of complex structure, large volume and small absorption concentricity of the conventional flexible coupling; according to the invention, through the optimized arrangement of the clamping groove structure on the intermediate shaft, the deformation of the intermediate shaft is reduced, and the transmission effect of the flexible coupling is improved; according to the invention, through optimizing the matching structure of the clamping block and the clamping groove, on one hand, the straight torsion arm of the torsion spring can enter conveniently, and meanwhile, a good fixing effect is achieved, on the other hand, the matching performance of the contact surface of the clamping block and the clamping groove is improved, and the transmission effect is improved.
In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and are not to be construed as limiting the present application.
The foregoing describes specific embodiments of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the invention. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.
Claims (10)
1. A flexible coupling, which is characterized by comprising a transmission shaft (1), a clamping block (2), an intermediate shaft (3) and a torsion spring (4);
clamping grooves (30) are respectively formed in two ends of the intermediate shaft (3), two groups of clamping blocks (2) are respectively connected with the clamping grooves (30), and a containing position is arranged between the end part of each clamping block (2) positioned in each clamping groove (30) and the bottom of each clamping groove (30);
the end part of the transmission shaft (1) is provided with a ball head (10), the ball head (10) is arranged in the clamping block (2), the ball head (10) is provided with a shaft hole (101), and the clamping block (2) is provided with a connecting hole (20);
the torsion spring (4) is sleeved on the intermediate shaft (3) at the connection position of the clamping block (2) and the clamping groove (30), one end of the torsion spring (4) penetrates through the connection hole (20) and the shaft hole (101), and the other end of the torsion spring (4) penetrates through the holding position between the clamping block (2) and the clamping groove (30) after rotating by a preset angle.
2. Flexible coupling according to claim 1, characterized in that the intermediate shaft (3) is of cylindrical barrel construction.
3. Flexible coupling according to claim 2, characterized in that the clamping block (2) is provided with a circular ring end (21) and clamping parts (22), the number of clamping parts (22) being two.
4. Flexible coupling according to claim 1, characterized in that the clamping groove (30) is a U-shaped groove.
5. Flexible coupling according to claim 4, characterized in that the two clamping grooves (30) at both ends of the intermediate shaft (3) are offset in a non-parallel manner.
6. Flexible coupling according to claim 5, characterized in that two of said clamping grooves (30) are arranged perpendicular to each other.
7. Flexible coupling according to claim 6, characterized in that the torsion spring (4) is a cross-shaped torsion spring.
8. A flexible coupling according to claim 3, wherein the side contact surfaces of the clamping portion (22) and the clamping groove (30) are arc-shaped concave-convex joint surfaces.
9. A flexible coupling according to claim 3, wherein the end surface of the clamping portion (22) is an arcuate concave or arcuate convex surface.
10. The flexible coupling of claim 1, wherein the intermediate shaft is stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010746605.0A CN111828494B (en) | 2020-07-29 | 2020-07-29 | Flexible coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010746605.0A CN111828494B (en) | 2020-07-29 | 2020-07-29 | Flexible coupling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111828494A CN111828494A (en) | 2020-10-27 |
| CN111828494B true CN111828494B (en) | 2024-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010746605.0A Active CN111828494B (en) | 2020-07-29 | 2020-07-29 | Flexible coupling |
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| Country | Link |
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| CN (1) | CN111828494B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203670527U (en) * | 2013-06-13 | 2014-06-25 | 深圳信息职业技术学院 | Double-torsion-spring coupler |
| CN204739108U (en) * | 2015-07-03 | 2015-11-04 | 陕西科技大学 | Torsional spring resilient coupling |
| CN207005122U (en) * | 2017-03-08 | 2018-02-13 | 扬州维邦园林机械有限公司 | A kind of flexible universal driving device |
| CN209164419U (en) * | 2018-11-13 | 2019-07-26 | 齐齐哈尔天隅技术开发有限公司 | A kind of flexible coupling |
| CN212536467U (en) * | 2020-07-29 | 2021-02-12 | 中国船舶重工集团公司第七一一研究所 | Flexible coupling |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10408282B2 (en) * | 2017-11-03 | 2019-09-10 | Woodward, Inc. | Wrap spring torque nipple |
-
2020
- 2020-07-29 CN CN202010746605.0A patent/CN111828494B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203670527U (en) * | 2013-06-13 | 2014-06-25 | 深圳信息职业技术学院 | Double-torsion-spring coupler |
| CN204739108U (en) * | 2015-07-03 | 2015-11-04 | 陕西科技大学 | Torsional spring resilient coupling |
| CN207005122U (en) * | 2017-03-08 | 2018-02-13 | 扬州维邦园林机械有限公司 | A kind of flexible universal driving device |
| CN209164419U (en) * | 2018-11-13 | 2019-07-26 | 齐齐哈尔天隅技术开发有限公司 | A kind of flexible coupling |
| CN212536467U (en) * | 2020-07-29 | 2021-02-12 | 中国船舶重工集团公司第七一一研究所 | Flexible coupling |
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| Publication number | Publication date |
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| CN111828494A (en) | 2020-10-27 |
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