CN201230271Y - Flexible shaft connector - Google Patents
Flexible shaft connector Download PDFInfo
- Publication number
- CN201230271Y CN201230271Y CNU2008201308310U CN200820130831U CN201230271Y CN 201230271 Y CN201230271 Y CN 201230271Y CN U2008201308310 U CNU2008201308310 U CN U2008201308310U CN 200820130831 U CN200820130831 U CN 200820130831U CN 201230271 Y CN201230271 Y CN 201230271Y
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- CN
- China
- Prior art keywords
- permanent magnet
- outer tube
- tube
- inner tube
- utility
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- 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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- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Abstract
The utility model relates to a coupling, in particular to a flexible coupling which comprises an inner tube and an outer tube which are sleeved together. The flexible coupling is characterized in that the inner wall of the outer tube is fixedly provided with an outer tube permanent magnet; the outer wall of the inner tube is fixedly provided with an inner tube permanent magnet; and the two ends of the outer tube permanent magnet are respectively provided with a guide sleeve and a sealing sleeve. The guide sleeve and the sealing sleeve are fixedly connected with the inner wall of the outer tube, and the inner diameters of the guide sleeve and the sealing sleeve are bigger than the outer diameter of the inner tube and lower than the top end of the inner tube permanent magnet. The coupling has simple structure and low production cost. The utility model has long service life due to no mechanical friction parts. The utility model depends on the permanent magnetic force to keep the inner tube and the outer tube to be synchronous, and can effectively separate the vibration and prolong the service lives of final-stage parts. The strength of the permanent magnet limits the maximum torque of the transmission, and can avoid the accidents of broken shaft caused by the impact load.
Description
Technical field
The utility model relates to a kind of shaft joint, especially a kind of flexible coupling.
Background technology
Shaft joint is commonly used to connect two coaxial pipe fittings or axle part.Common shaft joint also can transfer vibrations to subordinate when transmitting torsion, in applications such as wind-driven generators, because load variations is big, the vibration that working shaft produces is also big, transfer of vibration is very big to the infringement of parts to gearbox and generator, has a strong impact on the useful life of moving parts.The big load of moment usually causes mechanical accident.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, flexible coupling that can effectively intercept vibration.
For achieving the above object, the utility model adopts following technical scheme:
A kind of flexible coupling described in the utility model comprises interior pipe and the outer tube that is sleeved on together, it is characterized in that: the inwall of outer tube is installed with the outer tube permanent magnet, pipe permanent magnet in the outer wall of interior pipe is installed with, the two ends of outer tube permanent magnet are provided with fairlead and sealing shroud respectively.
Above-mentioned fairlead and sealing shroud are fixedly connected on the inwall of outer tube, and the internal diameter of fairlead and sealing shroud is all greater than the external diameter of interior pipe, and the top of pipe permanent magnet in being lower than.
This shaft joint is simple in structure, and production cost is low.Since part in addition without mechanical friction, long service life.Rely on permanent magnetism power to make interior pipe and outer tube keep to intercept vibration effectively synchronously, prolong the useful life of final stage parts.The intensity of permanent magnet magnetic has limited the peak torque of transmitting, and can avoid impact load to cause breaking axis.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the present utility model;
Fig. 2 is the A-A cutaway view of Fig. 1.
Embodiment
As shown in drawings, a kind of flexible coupling described in the utility model comprises interior pipe 1 and the outer tube 2 that is sleeved on together.Interior pipe 1 and outer tube 2 adopt permeability magnetic materials to make, so that produce closed magnetic loop between the adjacent permanent magnet.The inwall of outer tube 2 is installed with outer tube permanent magnet 21, pipe permanent magnet 11 in the outer wall of interior pipe 1 is installed with.Outer tube permanent magnet 21 and interior pipe permanent magnet 11 are provided with in pairs, evenly distribute along circumference.Can be as shown in Figure 2,90 degree at interval respectively are provided with pipe permanent magnet 11 in 4 outer tube permanent magnets 21 and 4.Also 180 degree at interval respectively are provided with pipe permanent magnet 11 in 2 outer tube permanent magnets 21 and 2.Certainly, also can be provided with more.
As shown in Figure 1, the two ends of outer tube permanent magnet 21 are provided with fairlead 3 and sealing shroud 4 respectively.
Fairlead 3 and sealing shroud 4 adopts non-magnetic high-abrasive material to make, be fixedly connected on the inwall of outer tube 2, and the internal diameter of fairlead 3 and sealing shroud 4 be all greater than the external diameter of interior pipe 1, and the top of pipe permanent magnet 11 in being lower than.Be to have certain interval between the internal diameter of fairlead 3 and sealing shroud 4 and the interior pipe 1, this gap should like this, can avoid outer tube permanent magnet 21 and interior pipe permanent magnet 11 to collide mutually less than the gap between outer tube permanent magnet 21 and the interior pipe permanent magnet 11.
Certainly, in also fairlead 3 and sealing shroud 4 can being fixedly connected on the outer wall of pipe 1, its effect be fixed on outer tube 2 on identical.
During use, by ring flange interior pipe 1 and outer tube 2 are installed in to be connected shaft end respectively, adjust the axle center, pipe 1 is sleeved on the inside of outer tube 2 in making, and makes outer tube permanent magnet 21 relative with the magnetic pole of interior pipe permanent magnet 11.Like this, because the effect that there is a natural attraction between the sexes, the same sex is repelled each other between the permanent magnet, relative rotation takes place with outer tube 2 in pipe 1 in stoping, and drives the driven shaft rotation when making the driving shaft rotation, reaches the effect that connects rotating shaft, transfer torque.
Owing to leave the gap between outer tube permanent magnet 21 and the interior pipe permanent magnet 11, can not arrive the other end to shock transfer when limited vibrations at one end take place, thereby alleviate mechanical damage, increase the service life.
Claims (2)
1, a kind of flexible coupling, comprise the interior pipe (1) and the outer tube (2) that are sleeved on together, it is characterized in that: the inwall of outer tube (2) is installed with outer tube permanent magnet (21), pipe permanent magnet (11) in the outer wall of interior pipe (1) is installed with, the two ends of outer tube permanent magnet (21) are provided with fairlead (3) and sealing shroud (4) respectively.
2, a kind of flexible coupling according to claim 1, it is characterized in that: fairlead (3) and sealing shroud (4) are fixedly connected on the inwall of outer tube (2), and the internal diameter of fairlead (3) and sealing shroud (4) is all greater than the external diameter of interior pipe (1), and the top of pipe permanent magnet (11) in being lower than.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201308310U CN201230271Y (en) | 2008-07-15 | 2008-07-15 | Flexible shaft connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201308310U CN201230271Y (en) | 2008-07-15 | 2008-07-15 | Flexible shaft connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201230271Y true CN201230271Y (en) | 2009-04-29 |
Family
ID=40635213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201308310U Expired - Fee Related CN201230271Y (en) | 2008-07-15 | 2008-07-15 | Flexible shaft connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201230271Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016086514A1 (en) * | 2014-12-05 | 2016-06-09 | 刁俊起 | Permanent magnet speed governor having fixed magnetic gap |
| CN106464115A (en) * | 2014-06-20 | 2017-02-22 | 赛峰电子与防务公司 | Electromagnetic actuator with magnetic torque limiter |
-
2008
- 2008-07-15 CN CNU2008201308310U patent/CN201230271Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106464115A (en) * | 2014-06-20 | 2017-02-22 | 赛峰电子与防务公司 | Electromagnetic actuator with magnetic torque limiter |
| CN106464115B (en) * | 2014-06-20 | 2017-11-10 | 赛峰电子与防务公司 | Electromagnetic actuators |
| WO2016086514A1 (en) * | 2014-12-05 | 2016-06-09 | 刁俊起 | Permanent magnet speed governor having fixed magnetic gap |
| EP3229354A4 (en) * | 2014-12-05 | 2017-12-13 | Diao, Junqi | Permanent magnet speed governor having fixed magnetic gap |
| US10439543B2 (en) | 2014-12-05 | 2019-10-08 | Junqi DIAO | Permanent magnet speed governor having fixed magnetic gap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090429 Termination date: 20100715 |