CN110601500A - Compact torque-limiting permanent magnet coupler - Google Patents
Compact torque-limiting permanent magnet coupler Download PDFInfo
- Publication number
- CN110601500A CN110601500A CN201910913399.5A CN201910913399A CN110601500A CN 110601500 A CN110601500 A CN 110601500A CN 201910913399 A CN201910913399 A CN 201910913399A CN 110601500 A CN110601500 A CN 110601500A
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- CN
- China
- Prior art keywords
- permanent magnet
- coupler
- torque
- conductor steel
- limiting
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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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
- H02K49/104—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element
- H02K49/108—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element with an axial air gap
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Abstract
The invention discloses a compact torque-limiting permanent magnet coupler, which comprises: the permanent magnet disc comprises a permanent magnet disc and two conductor steel discs, wherein the two conductor steel discs are symmetrically arranged on two sides of the permanent magnet disc, and air gaps are formed between the permanent magnet disc and the two conductor steel discs; and a sealing ring and a limiting block are arranged in the air gap, and the limiting blocks are respectively fixedly connected with the corresponding conductor steel discs. The invention reduces half of the number of the permanent magnet discs and the permanent magnets compared with the common permanent magnet coupler, has the same function, simple structure and lower cost than the prior 1/3, and is more beneficial to popularization and application.
Description
Technical Field
The invention relates to a compact torque-limiting permanent magnet coupler, and belongs to the technical field of permanent magnet couplers and permanent magnet transmission.
Background
The permanent magnet coupler is characterized in that a conductor material on a conductor disc cuts magnetic lines on a permanent magnet disc to generate nest current to form a counter-induction magnetic field to transfer torque, when power exceeds rated torque, suction force of a permanent magnet can be changed into thrust force to separate the conductor disc from the permanent magnet disc, a torque transfer terminal is realized, and the effect of protecting a motor and load equipment is achieved. The permanent magnet coupler in the prior art has the structure that two permanent magnet discs correspond to two conductor discs, namely one permanent magnet disc acts on one conductor steel disc, and because the two sides of the permanent magnet disc are both magnetic, the characteristic can be utilized, so that one permanent magnet disc acts on two conductor steel discs, half of the permanent magnet and one permanent magnet disc can be saved in the coupler with the same power, the price of the permanent magnet disc and the price of the permanent magnet occupy about 1/3 in the overall cost, the cost of the permanent magnet coupler can be greatly reduced, and the permanent magnet coupler has good advantages in popularization, application and competition.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a compact torque-limiting permanent magnet coupler, which has the advantages of same function, simple structure and lower cost than the conventional 1/3 because the number of permanent magnet discs and permanent magnets is reduced by half compared with the number of the permanent magnet discs and the permanent magnets of a common permanent magnet coupler, and is more beneficial to popularization and application.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a compact torque-limiting permanent magnet coupler, comprising: the permanent magnet disc comprises a permanent magnet disc and two conductor steel discs, wherein the two conductor steel discs are symmetrically arranged on two sides of the permanent magnet disc, and air gaps are formed between the permanent magnet disc and the two conductor steel discs;
and a sealing ring and a limiting block are arranged in the air gap, and the limiting blocks are respectively fixedly connected with the corresponding conductor steel discs.
As an improvement of the technical scheme, the minimum size of the air gap is 3.2mm, and the width of the limiting block corresponds to the air gap and is also 3.2 mm.
As an improvement of the technical scheme, the compact torque limiting permanent magnet coupler further comprises a torque protection frame used in a matched mode, one end of the torque protection frame is arranged between the two conductor steel discs, and the other end of the torque protection frame is provided with a flange and is provided with a coupler used in a matched mode through the flange.
As an improvement of the technical scheme, a plurality of connecting plates are arranged on the torque protection frame at equal intervals through bolts, and the outer walls of the connecting plates are of arc-shaped structures.
As an improvement of the technical scheme, a motor shaft is further arranged at one end corresponding to the coupler.
Compared with the prior art, the invention has the following implementation effects:
compared with the common permanent magnet coupler, the compact torque limiting permanent magnet coupler has the advantages that the number of the permanent magnet discs and the number of the permanent magnets are reduced by half, so that the load does not rotate under the condition that the motor rotates, the motor is not damaged under the condition of load failure, and compared with the common permanent magnet coupler, the compact torque limiting permanent magnet coupler has the same function, simple structure and lower cost of 1/3, and is more beneficial to popularization and application.
Drawings
FIG. 1 is a schematic diagram of a conventional compact torque-limiting permanent magnet coupler;
fig. 2 is a schematic structural diagram of the compact torque-limiting permanent magnet coupler according to the present invention.
Detailed Description
The present invention will be described with reference to specific examples.
Example (b): as shown in fig. 2 (in fig. 1, two groups of permanent magnet discs a and B and two groups of conductor steel discs C and D used in cooperation with the permanent magnet discs a and B): a compact torque limiting permanent magnet coupler comprises a permanent magnet disc 1 and two conductor steel discs 2, wherein the two conductor steel discs 2 are symmetrically arranged on two sides of the permanent magnet disc 1, and air gaps 3 are formed between the permanent magnet disc 1 and the two conductor steel discs 2; a sealing ring 4 and a limiting block 5 are arranged in the air gap 3, and the limiting blocks 5 are respectively fixedly connected with the corresponding conductor steel discs 2; wherein, the minimum size of the air gap 3 is 3.2mm, and the width of the limiting block 5 is 3.2mm corresponding to the air gap 3; the compact torque limiting permanent magnet coupler further comprises a torque protection frame 6 used in a matched mode, one end of the torque protection frame 6 is arranged between the two conductor steel discs 2, and the other end of the torque protection frame 6 is provided with a flange 7 and a coupler 8 used in a matched mode is installed through the flange 7. The compact torque-limiting permanent magnet coupler disclosed by the invention has the advantages that the coupler 8 is driven by the motor, the conductor steel disc 2 is driven by the coupler 8, the torque of the conductor steel disc 2 is transmitted to the permanent magnet disc 1, the torque of the permanent magnet disc 1 is transmitted to a load, when the torque of the load exceeds the rated torque of the coupler, the permanent magnet disc 1 gives repulsive force to the conductor steel disc 2, the conductor steel disc 2 is pushed open, the torque transmission of the permanent magnet disc 1 and the conductor steel disc 2 is relieved, the load does not rotate under the condition of motor rotation, and the motor is prevented from being damaged under the condition of load failure. The torque protection frame 6 is also used for connecting and assembling the entire coupling, and has a load-relieving effect.
Specifically, the torque protection frame 6 is provided with a plurality of connecting plates 61 at equal intervals through bolts, and the outer walls of the connecting plates 61 are of arc-shaped structures, so that the mounting and dismounting are convenient; and one end corresponding to the coupler 8 is also provided with a motor shaft 9 for matching use.
In conclusion, the permanent magnet coupler has the characteristic of compact structure, the same function can be achieved by only using half of the permanent magnets and the permanent magnet discs, the number of the permanent magnet discs and the number of the permanent magnets are reduced by half compared with that of a common permanent magnet coupler, so that a load does not rotate under the condition that a motor rotates, the motor is not damaged under the condition of load failure, and compared with the common permanent magnet coupler, the permanent magnet coupler has the advantages of identical function, simple structure and less cost 1/3, and is more beneficial to popularization and application.
The foregoing is a detailed description of the invention with reference to specific embodiments, and the practice of the invention is not to be construed as limited thereto. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (5)
1. A compact torque-limiting permanent magnet coupler, characterized by: the method comprises the following steps: the permanent magnet disc comprises a permanent magnet disc (1) and two conductor steel discs (2), wherein the two conductor steel discs (2) are symmetrically arranged on two sides of the permanent magnet disc (1), and air gaps (3) are formed between the permanent magnet disc (1) and the two conductor steel discs (2);
all be equipped with sealing washer (4) and stopper (5) in air gap (3), stopper (5) respectively with corresponding conductor steel dish (2) fixed connection.
2. The compact torque-limiting permanent magnet coupler of claim 1, wherein: the minimum size of air gap (3) is 3.2mm, the width of stopper (5) also is 3.2mm with air gap (3) correspondence.
3. The compact torque-limiting permanent magnet coupler of claim 1, wherein: compact torque restriction permanent magnet coupler is still including the moment of torsion protective frame (6) that the cooperation was used, moment of torsion protective frame (6) one end sets up between two conductor steel discs (2), moment of torsion protective frame (6) other end is equipped with flange (7) and installs shaft coupling (8) that the cooperation was used through flange (7).
4. The compact torque-limiting permanent magnet coupler of claim 3, wherein: a plurality of connecting plates (61) are arranged on the torque protection frame (6) at equal intervals through bolts, and the outer walls of the connecting plates (61) are of arc-shaped structures.
5. The compact torque-limiting permanent magnet coupler of claim 3, wherein: and a motor shaft (9) is also arranged at one end corresponding to the coupler (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910913399.5A CN110601500A (en) | 2019-09-25 | 2019-09-25 | Compact torque-limiting permanent magnet coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910913399.5A CN110601500A (en) | 2019-09-25 | 2019-09-25 | Compact torque-limiting permanent magnet coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110601500A true CN110601500A (en) | 2019-12-20 |
Family
ID=68863438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910913399.5A Pending CN110601500A (en) | 2019-09-25 | 2019-09-25 | Compact torque-limiting permanent magnet coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110601500A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112260481A (en) * | 2020-09-25 | 2021-01-22 | 湖南中特液力传动机械有限公司 | Connecting support for heat dissipation of disc type torque-limiting permanent magnet coupler and permanent magnet coupler |
-
2019
- 2019-09-25 CN CN201910913399.5A patent/CN110601500A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112260481A (en) * | 2020-09-25 | 2021-01-22 | 湖南中特液力传动机械有限公司 | Connecting support for heat dissipation of disc type torque-limiting permanent magnet coupler and permanent magnet coupler |
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