CN213402777U - Permanent magnet coupler of radial airflow heat dissipation device - Google Patents
Permanent magnet coupler of radial airflow heat dissipation device Download PDFInfo
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- CN213402777U CN213402777U CN202022137617.1U CN202022137617U CN213402777U CN 213402777 U CN213402777 U CN 213402777U CN 202022137617 U CN202022137617 U CN 202022137617U CN 213402777 U CN213402777 U CN 213402777U
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Abstract
The utility model provides a radial air current heat abstractor's permanent magnet coupler, including first permanent magnet, second permanent magnet, first conductor dish and second conductor dish, the both ends of hollow square shaft are located to first permanent magnet, second permanent magnet, and first permanent magnet, second permanent magnet pass through hollow square shaft and are connected with the driving shaft adapter sleeve, and the second conductor dish is installed on driven shaft connecting sleeve, and first conductor dish passes through the connecting plate and is connected with second conductor dish, radially be equipped with at least a set of fin on first conductor dish and the second conductor dish. This scheme simple structure, the operation is convenient, the effectual radiating effect who improves the coupler, and then reduced the influence of high temperature to permanent magnet magnetism, avoid the magnetism of permanent magnet to reduce or lose magnetism, the effectual life who improves the coupler has reduced the cost of overhaul.
Description
Technical Field
The utility model relates to a permanent magnet coupler, especially a radial air current heat abstractor's permanent magnet coupler.
Background
The working principle of the magnetic coupler follows magnetic coulomb's law, namely two magnets which are separated by a certain distance, and the magnetic coupler can transmit power from one magnet to the other magnet through the coupling force of the magnets without any traditional mechanical component due to the magnetic field induction effect, so that a non-contact torque transmission mechanism is formed.
The magnetic coupler is divided into a conductor rotor connected with a prime motor and a magnetic rotor connected with a load, and the output torque is adjusted by adjusting the gap (air gap) between the conductor rotor and the magnetic rotor, so that the speed regulation is realized.
The patent number CN209627201U discloses a delay type magnetic coupler playing a role in delaying and buffering a load device at a starting stage, which is characterized by comprising a central shaft and a driven shaft connecting sleeve, wherein a first positioning sleeve and a second positioning sleeve are respectively installed on the central shaft through a thrust angular contact bearing, a first fixed disk is installed on the first positioning sleeve through a first small shaft, and a second fixed disk is installed on the second positioning sleeve through a second small shaft; the opposite end surfaces of the first positioning sleeve and the second positioning sleeve are respectively provided with a first pole changing limiting disc and a second pole changing limiting disc, the first pole changing limiting disc is provided with a first bulge, the second pole changing limiting disc is provided with a second bulge, the first bulge and the second bulge are arranged in a staggered mode, and a reset spring is arranged between the first bulge and the second bulge according to the rotating direction of the first positioning sleeve; the utility model discloses simple structure has soft start performance to load equipment during the operation, but wide application in band conveyer, bucket elevator and various big inertia equipment etc.. However, the coupler has an undesirable heat dissipation effect in the use process, the magnetism of the permanent magnet is reduced when the temperature exceeds 120 ℃, and the magnetism is lost when the temperature exceeds 150 ℃, so that the use of the coupler is affected, and therefore the coupler is a problem which needs to be solved urgently at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the above-mentioned not enough of prior art, and provide a radiating effect outstanding, avoid permanent magnet magnetism to reduce or lose the radial air flow heat abstractor's of magnetism permanent magnet coupler.
The technical scheme of the utility model is that: the utility model provides a radial air current heat abstractor's permanent magnet coupler, includes first permanent magnet, second permanent magnet, first conductor dish and second conductor dish, and the both ends of hollow square shaft are located to first permanent magnet, second permanent magnet, and first permanent magnet, second permanent magnet pass through hollow square shaft and are connected with the driving shaft adapter sleeve, and second conductor dish is installed on the driven shaft adapter sleeve, and first conductor dish passes through the connecting plate to be connected with second conductor dish, radially be equipped with at least a set of fin on first conductor dish and the second conductor dish.
The advantage of this scheme lies in, the radiating effect that can effectual promotion conductor dish rotates with the conductor dish through the fin simultaneously and plays fan effect, and further promotion radiating effect prevents the high temperature of coupler, avoids high temperature to the influence of permanent magnet magnetism, the effectual life-span that improves the coupler, has reduced the maintenance cost to it.
Further, the connecting plate is of a streamline structure. In the use, streamlined connecting plate produces the wind current at rotatory in-process, can produce certain wind pressure simultaneously, is convenient for introduce the wind current toward the inside of coupler, improves the air current in the coupler, improves the radiating effect, can directly play refrigerated effect to the permanent magnet, reduces the influence of high temperature to the permanent magnet.
Further, the connecting plate is of a fan blade structure. The air flow is convenient to improve, the heat dissipation effect is improved, and the over-high temperature of the permanent magnet is avoided.
Furthermore, shielding steel plates are arranged on the opposite end faces of the first permanent magnet and the second permanent magnet. The installation of being convenient for promote permanent magnet is fixed, plays the effect of protection to the permanent magnet simultaneously.
Furthermore, working gaps are arranged between the first permanent magnet and the first conductor disc and between the second permanent magnet and the second conductor disc, and when a load is overloaded or stuck suddenly, the permanent magnets can move conveniently, so that the load is separated from the torque transmission of the power machine, and the purpose of protecting the power machine and a transmission part is achieved.
Furthermore, the driving shaft connecting sleeve is driven by a power machine to rotate, and the first permanent magnet and the second permanent magnet are driven to rotate through the hollow square shaft.
Further, first conductor dish, second conductor dish synchronous revolution under the magnetic induction effect, transmit moment for the working machine through the driven shaft adapter sleeve, accomplish the moment transmission.
The utility model has the characteristics of as follows: this scheme simple structure, the operation is convenient, the effectual radiating effect who improves the coupler, and then reduced the influence of high temperature to permanent magnet magnetism, avoid the magnetism of permanent magnet to reduce or lose magnetism, the effectual life who improves the coupler has reduced the cost of overhaul.
The detailed structure of the present invention will be further described with reference to the accompanying drawings and the detailed description.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a connection plate structure;
the device comprises a driving shaft connecting sleeve 1, a driven shaft connecting sleeve 2, a first conductor disc 3, a connecting plate 4, a first permanent magnet 5, a shielding steel plate 6, a second permanent magnet 7, a second conductor disc 8, a hollow square shaft 9 and a radiating fin 10.
Detailed Description
As shown in the attached drawings: the utility model provides a radial air current heat abstractor's permanent magnet coupler, including first permanent magnet 5, second permanent magnet 7, first conductor dish 3 and second conductor dish 8, first permanent magnet 5, the both ends of hollow square shaft 9 are located to second permanent magnet 7, first permanent magnet 5, second permanent magnet 7 is connected with driving shaft adapter sleeve 1 through hollow square shaft 9, second conductor dish 8 is installed on driven shaft adapter sleeve 2, first conductor dish 3 is connected with second conductor dish 8 through connecting plate 4, radially be equipped with at least a set of fin 10 on first conductor dish 3 and the second conductor dish 8. In this embodiment, four sets of heat dissipation fins 10 are disposed on the first conductor disk 3 and the second conductor disk 8, the four sets of heat dissipation fins 10 are distributed on the outer surface of the conductor disk at equal intervals, so that the heat dissipation effect is improved, a fan effect is achieved, airflow movement around the conductor disk is improved, and the heat dissipation fins 10 are made of high-heat-conductivity materials, such as copper, aluminum, silver or alloy.
This scheme can effectual promotion conductor dish the radiating effect, rotates with the conductor dish through fin 10 simultaneously and plays fan effect, and further promotion radiating effect prevents the high temperature of coupler, avoids the influence of high temperature to permanent magnet magnetism, the effectual life-span that improves the coupler, has reduced the maintenance cost to it.
In the embodiment, the connection plate 4 has a streamline structure. In the use, streamlined connecting plate 4 produces the wind current at rotatory in-process, can produce certain wind pressure simultaneously, is convenient for introduce the wind current toward the inside of coupler, improves the air current in the coupler, improves the radiating effect, can directly play refrigerated effect to the permanent magnet, reduces the influence of high temperature to the permanent magnet.
In another embodiment, the connection plate 4 is a fan blade structure. The air flow is convenient to improve, the heat dissipation effect is improved, and the over-high temperature of the permanent magnet is avoided.
In the embodiment, the shielding steel plates 6 are mounted on the opposite end faces of the first permanent magnet 5 and the second permanent magnet 7. The installation of being convenient for promote permanent magnet is fixed, plays the effect of protection to the permanent magnet simultaneously. Working gaps are arranged between the first permanent magnet 5 and the first conductor disc 3, and between the second permanent magnet 7 and the second conductor disc 8, so that the permanent magnets can move conveniently under the condition that a load is overloaded or stuck suddenly, the load is separated from the torque transmission of the power machine, and the purpose of protecting the power machine and a transmission part is achieved.
In the embodiment, the driving shaft connecting sleeve 1 is driven by a power machine to rotate, and the first permanent magnet 5 and the second permanent magnet 7 are driven to rotate through the hollow square shaft 9. The first conductor disc 3 and the second conductor disc 8 synchronously rotate under the action of magnetic induction force, and torque is transmitted to the working machine through the driven shaft connecting sleeve 2 to complete torque transmission.
This scheme simple structure, the operation is convenient, the effectual radiating effect who improves the coupler, and then reduced the influence of high temperature to permanent magnet magnetism, avoid the magnetism of permanent magnet to reduce or lose magnetism, the effectual life who improves the coupler has reduced the cost of overhaul.
When the load suddenly overloads or is stuck, the rotating speeds of the first conductor disc 3 and the second conductor disc 8 are sharply reduced to zero, the first permanent magnet 5 and the second permanent magnet 7 connected with the power end continuously rotate at the rated rotating speed, the relative speed difference between the first permanent magnet 5 and the second permanent magnet 7 generates an eddy current electric field, the eddy current electric field generates anti-magnetic induction force to push the first permanent magnet 5 and the second permanent magnet 7 away from the first conductor disc 3 and the second conductor disc 8 respectively, so that a gap (air gap) between the first permanent magnet 5 and the first conductor disc 3 and between the second permanent magnet 7 and the second conductor disc 8 is enlarged, the magnetic induction force between the first permanent magnet 5 and the first conductor disc 3 is weakened, the load is separated from the torque transmission of the power machine, and the purpose of protecting the power machine and a transmission part is achieved.
The initial positions of the double permanent magnets keep a certain distance in the use process of the utility model, so that the magnetic poles between the double permanent magnets attract each other; when the permanent magnet is started, when the permanent magnet connected with the power machine shaft rotates for a certain angle, the magnetic poles between the double permanent magnets are changed from the original mutual attraction into mutual repulsion, and the double permanent magnets respectively move towards the corresponding conductor discs in the axial direction until the gap between the permanent magnet and the corresponding conductor discs is reduced to be a working gap; therefore, in the process of changing the gap between the permanent magnet and the corresponding conductor disc, the magnetic induction force is gradually increased along with the reduction of the gap, so that the torque of a driving load is increased, the speed of the load and the speed of a power machine are gradually close to synchronous, the purpose of prolonging the starting time of equipment is achieved, the protection of the power machine and a transmission part is further improved, the permanent magnet is prevented from being influenced by high temperature, the radiating problem of the coupler is effectively solved due to the streamline arrangement of the radiating fins 10 and the connecting plate 4, the service life of the coupler is effectively prolonged, and the maintenance cost of the coupler is reduced.
The preferred embodiments of the present invention have been described in detail above, but it is apparent that the present invention is not limited to the above embodiments. The technical idea of the utility model within the scope, can be right the utility model discloses a technical scheme carries out multiple equivalent variant, and these equivalent variants all belong to the utility model discloses a protection scope. In addition, it should be noted that the technical features described in the above embodiments may be separately and independently combined as long as they are within the technical concept of the present invention.
Claims (7)
1. The utility model provides a radial air current heat abstractor's permanent magnet coupler, includes first permanent magnet, second permanent magnet, first conductor dish and second conductor dish, and the both ends of hollow square shaft are located to first permanent magnet, second permanent magnet, and first permanent magnet, second permanent magnet pass through hollow square shaft and are connected with the driving shaft adapter sleeve, and second conductor dish is installed on the driven shaft adapter sleeve, and first conductor dish passes through the connecting plate to be connected its characterized in that with second conductor dish: at least one group of radiating fins are radially arranged on the first conductor disc and the second conductor disc.
2. The permanent magnet coupler for a radial airflow heat sink of claim 1, wherein: the connecting plate is of a streamline structure.
3. The permanent magnet coupler for a radial airflow heat sink of claim 2, wherein: the connecting plate is of a fan blade structure.
4. The permanent magnet coupler for a radial airflow heat sink according to any one of claims 1-3, wherein: and the shielding steel plates are arranged on the opposite end faces of the first permanent magnet and the second permanent magnet.
5. The permanent magnet coupler for a radial airflow heat sink according to any one of claims 1-3, wherein: working gaps are arranged between the first permanent magnet and the first conductor disc and between the second permanent magnet and the second conductor disc.
6. The permanent magnet coupler for a radial airflow heat sink according to any one of claims 1-3, wherein: the driving shaft connecting sleeve is driven by a power machine to rotate, and the first permanent magnet and the second permanent magnet are driven by the hollow square shaft to rotate.
7. The permanent magnet coupler for a radial airflow heat sink according to any one of claims 1-3, wherein: the first conductor disc and the second conductor disc synchronously rotate under the action of magnetic induction force, and torque is transmitted to the working machine through the driven shaft connecting sleeve to complete torque transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022137617.1U CN213402777U (en) | 2020-09-25 | 2020-09-25 | Permanent magnet coupler of radial airflow heat dissipation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022137617.1U CN213402777U (en) | 2020-09-25 | 2020-09-25 | Permanent magnet coupler of radial airflow heat dissipation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213402777U true CN213402777U (en) | 2021-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022137617.1U Active CN213402777U (en) | 2020-09-25 | 2020-09-25 | Permanent magnet coupler of radial airflow heat dissipation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213402777U (en) |
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2020
- 2020-09-25 CN CN202022137617.1U patent/CN213402777U/en active Active
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