CN216851725U - Double-magnetic-ring external permanent magnet speed regulator - Google Patents
Double-magnetic-ring external permanent magnet speed regulator Download PDFInfo
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- CN216851725U CN216851725U CN202123301292.7U CN202123301292U CN216851725U CN 216851725 U CN216851725 U CN 216851725U CN 202123301292 U CN202123301292 U CN 202123301292U CN 216851725 U CN216851725 U CN 216851725U
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Abstract
The utility model provides an external permanent magnet speed regulation ware of two magnetic rings belongs to permanent magnet speed regulation ware technical field. The technical scheme is as follows: a kind of double magnetic ring external permanent magnet speed regulator, including input end, carry-out terminal and speed governing structure that set up coaxially, there are conductor rotors on the said input end, there are permanent magnet rotors on the said carry-out terminal, characterized by that, the said permanent magnet rotor includes the driven disk, there are outer magnetic rings and inner magnetic rings concentrically on the said driven disk; the conductor rotor comprises a driving disc, conductor rings are concentrically arranged on the driving disc, and the conductor rings are located between the outer magnetic ring and the inner magnetic ring and are provided with gaps. The utility model has the advantages that: a double-magnetic-ring structure is adopted, the inner magnetic ring and the outer magnetic ring are arranged at the innermost side and the outermost side in the circumferential direction, a conductor rotor is arranged in the middle, and only one side of the inner magnetic ring and one side of the outer magnetic ring are affected by heat diffusion of a conductor, so that the overhigh temperature of a permanent magnet is avoided.
Description
Technical Field
The utility model relates to a permanent magnet speed regulator technical field especially relates to an external permanent magnet speed regulator of two magnetic rings.
Background
The permanent magnet speed regulator mainly comprises a conductor rotor, a permanent magnet rotor and a speed regulating mechanism, torque transmission from the motor to a load is realized through an air gap between the conductor and the permanent magnet, and a transmission mode without mechanical connection between the motor and the load can be realized.
The permanent magnet rotor of a common permanent magnet speed regulator adopts a single-magnet-ring structure, the single-magnet-ring structure is used for better utilizing a magnetic field to place a magnet ring in the middle, conductors are respectively arranged on two sides in the circumferential direction, the structural defect is that the permanent magnet is arranged in the middle of the structure, conductor heat is diffused on two sides of the permanent magnet, and the permanent magnet can generate a demagnetization phenomenon once the temperature is too high, so that the working performance of the permanent magnet speed regulator is influenced. The single magnetic ring permanent magnet speed regulator has to adopt good ventilation and heat dissipation measures, and has a complex structure and high cost.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an external permanent magnet speed regulator of two magnetic rings that radiating efficiency is high.
The utility model discloses a realize through following technical scheme: a kind of double magnetic ring external permanent magnet speed regulator, including input end, carry-out terminal and speed governing structure that set up coaxially, there are conductor rotors on the said input end, there are permanent magnet rotors on the said carry-out terminal, characterized by that, the said permanent magnet rotor includes the driven disk, there are outer magnetic rings and inner magnetic rings concentrically on the said driven disk;
the conductor rotor comprises a driving disc, conductor rings are concentrically arranged on the driving disc, and the conductor rings are located between the outer magnetic ring and the inner magnetic ring and are provided with gaps.
The conductor ring includes an outer conductor ring and an inner conductor ring with a gap therebetween. The inner conductor ring and the outer conductor ring can adopt steel rings or other metal conductors.
The gaps between the conductor ring and the outer and inner conductor rings, respectively, and between the outer and inner conductor rings may be determined according to the actual situation.
The magnetic ring comprises an inner magnetic ring body and an outer magnetic ring body, wherein a plurality of first grooves are uniformly distributed on one end face of the magnetic ring body in the circumferential direction, permanent magnets are arranged in the first grooves, the permanent magnets are fixed through a magnetic ring cover arranged on the outer side of the magnetic ring body, and the permanent magnets are arranged between the magnetic ring body and the magnetic ring cover;
the magnetic ring body is in contact with the adjacent end faces of the magnetic ring covers.
And a heat dissipation through hole is formed in the side wall of the magnetic ring body and is positioned between every two adjacent first grooves.
And a second groove corresponding to the first groove is formed in the magnetic ring cover, and the permanent magnet is arranged between the first groove and the second groove.
The magnetic ring body and the magnetic ring cover are both made of conductive metal materials. An aluminum material is preferable.
The permanent magnet is fixed on the magnetic ring body.
The cross section shapes of the first groove and the permanent magnet are regular geometric shapes. Preferably rectangular.
The magnetic ring cover is detachably connected and fixed on the magnetic ring body. Can adopt the screw, the magnetic ring body is fixed on the driven plate of permanent magnet speed regulator through dismantling the connection, and the driven plate is fixed on the load output shaft, and then realizes the moment of torsion transmission function.
The first groove and the second groove are formed by cutting.
The speed regulation structure comprises a driving shaft which is rotatably arranged, the axis of the driving shaft is vertical to the axis of the input end and is not in the same plane, two ends of the driving shaft are respectively provided with a rocker arm, and the other end of each rocker arm is hinged with one end of a connecting rod;
the transmission disc can rotate along with the conductor rotor, and the conductor rotor can simultaneously do linear motion along the axis of the input end;
the conductor rotator moves along the axis of the input end and is driven by the connecting rod.
The conductor rotor is at least provided with two guide rods, the guide rods penetrate through the transmission disc, the transmission disc is connected with the input end, and the conductor rotor is sleeved on the input end. The number of the guide rods can be 2-8, and the specific number can be determined according to actual conditions.
The driving shaft rotates to drive the rocker arm to swing so as to pull the conductor rotor to move along the input end through the connecting rod. Because the conductor rotor is limited by the guide rod, when the input end rotates, the conductor rotor can be driven to rotate through the transmission disc.
The conductor rotor is close to one side of connecting rod is fixed and is provided with the slip cap, the slip cap cup joints on the input end, the slip cap has cup jointed the bearing group on, the slip cap can follow the inner circle of bearing group rotates, the other end of connecting rod articulates on the outer wall of bearing group.
The input end is a shaft, and the transmission disc is connected with the shaft through a key;
or the input end comprises a shaft and a shaft sleeve sleeved outside the shaft, the transmission disc is fixedly connected with the shaft sleeve, and the shaft is connected with the shaft sleeve through an expansion sleeve. The shaft and the shaft sleeve are fixedly connected through the expansion sleeve.
The output end is a shaft or a shaft sleeve and is fixedly connected with the permanent magnet rotor, can be connected with the permanent magnet rotor through a bolt and also can be integrally arranged with the permanent magnet rotor.
The driving shaft is rotatably connected through a bearing and fixed through a bearing seat. The bearing block can be fixed on the ground or a fixed frame.
The bearing set generally includes a plurality of bearings and a bearing housing for securing the plurality of bearings.
The driving shaft can be driven by a motor or an actuator, and the conductor rotor moves along the axis of the input end so as to change the coupling area between the permanent magnet rotor and the conductor rotor, realize torque transmission with different sizes and achieve the purposes of speed reduction and energy saving.
The utility model has the advantages that: a double-magnetic-ring structure is adopted, the inner magnetic ring and the outer magnetic ring are arranged at the innermost side and the outermost side in the circumferential direction, a conductor rotor is arranged in the middle, and only one side of the inner magnetic ring and one side of the outer magnetic ring are affected by heat diffusion of a conductor, so that the overhigh temperature of a permanent magnet is avoided; when the input end rotates, the input end and the output end generate relative motion, the conductor assembly cuts magnetic lines of force, eddy current is generated in the conductor, the eddy current further generates a counter-induction magnetic field, and the counter-induction magnetic field interacts with a magnetic field generated by the permanent magnet, so that torque transmission between the input end and the output end is realized; the magnetic ring adopts a split type magnetic ring, so that the structure is simple, the installation and the disassembly are easier, and the operation of the permanent magnet speed regulator is not influenced; the cutting processing mode is adopted to replace the electric discharge processing mode, so that the processing efficiency is greatly improved, and the effect of improving the productivity is very obvious.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the internal structure.
Fig. 3 is a partial structural diagram.
Fig. 4 is a schematic view of the internal structure of the magnetic ring.
Fig. 5 is a schematic view of the structure of the outer magnet ring.
Wherein the reference numerals are: 1. a drive plate; 2. a drive shaft; 3. a driven plate; 4. a sliding sleeve; 5. a driving disk; 10. an input end shaft sleeve; 14. an output end shaft sleeve; 201. a rocker arm; 202. a connecting rod; 203. a bearing seat; 101. a guide bar; 301. an inner magnetic ring; 302. an outer magnetic ring; 303. a magnetic ring body; 304. a magnetic ring cover; 3031. a first groove; 3032. a second groove; 401. a bearing set; 501. an inner conductor ring; 502. an outer conductor ring; 1001. expanding the sleeve at the output end; 1401. and the output end is expanded.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.
The first embodiment is as follows:
referring to fig. 1-3, the present invention relates to a dual magnetic ring external permanent magnet speed regulator, which comprises a coaxially disposed input end, an output end and a speed regulation structure, wherein the input end is provided with a conductor rotor, the output end is provided with a permanent magnet rotor, the permanent magnet rotor comprises a driven disc 3, and the driven disc 3 is concentrically provided with an outer magnetic ring 302 and an inner magnetic ring 301;
the conductor rotor comprises a driving disk 5, wherein a conductor ring is concentrically arranged on the driving disk 5, and the conductor ring is positioned between an outer magnetic ring 302 and an inner magnetic ring 301 and is provided with a gap.
The conductor ring includes an outer conductor ring 502 and an inner conductor ring 501, with a gap between the outer conductor ring 502 and the inner conductor ring 501.
The gap between the conductor ring and the outer and inner conductor rings 302, 301, 502, 501, respectively, may be determined as appropriate.
The structure of the conductor ring, the outer magnet ring 302 and the inner magnet ring 301 may be implemented using known techniques.
Example two:
referring to fig. 4 to 5, the difference from the first embodiment is only limited in the specific structures of the inner magnetic ring 301 and the outer magnetic ring 302 from the second embodiment, specifically:
the inner magnetic ring 301 and the outer magnetic ring 302 both comprise a magnetic ring body 303, a plurality of grooves 3031 are uniformly distributed on one end face of the magnetic ring body 303 in the circumferential direction, permanent magnets are arranged in the grooves 3031, the permanent magnets are fixed through a magnetic ring cover 304 arranged on the outer side of the magnetic ring body 303, and the permanent magnets are arranged between the magnetic ring body 303 and the magnetic ring cover 304;
the magnetic ring body 303 is in contact with the adjacent end surfaces of the magnetic ring cover 304.
And heat dissipation through holes are formed in the side wall of the magnetic ring body 303 and located between every two adjacent grooves 3031.
The magnetic ring cover 304 is provided with a second groove 3041 corresponding to the first groove 3031, and the permanent magnet is arranged between the first groove 3031 and the second groove 3041. And heat dissipation through holes are formed in the side wall of the magnetic ring cover 304 and located between the two adjacent first grooves 3031.
The magnetic ring body 303 and the magnetic ring cover 304 are made of conductive metal materials. An aluminum material is preferable.
The permanent magnet is fixed on the magnet ring body 303.
The cross-sectional shapes of the first groove 3031 and the permanent magnet are regular geometric shapes. Preferably rectangular.
The magnetic ring cover 304 is fixed on the magnetic ring body 303 through detachable connection. The screw can be adopted, the magnetic ring body 303 is detachably connected and fixed on the driven disc 3 of the permanent magnet speed regulator, and the driven disc 3 is fixed on the load output shaft, so that the torque transmission function is realized.
The first groove 3031 and the second groove 3041 are formed by cutting.
Example three:
referring to fig. 1-3, the partial structure of the connecting rod 202 and the rocker arm 201 in fig. 3 is not originally visible, and is shown only for convenience. On the basis of the first embodiment or the second embodiment, the speed regulation structure comprises a driving shaft 2 which is arranged in a rotating mode, the axis of the driving shaft 2 is perpendicular to the axis of the input end and is not in the same plane, two ends of the driving shaft 2 are provided with rocker arms 201, and the other ends of the rocker arms 201 are hinged to one end of a connecting rod 202;
the transmission device also comprises a transmission disc 1 which can rotate along with the conductor rotor, and the conductor rotor can simultaneously do linear motion along the axis of the input end;
the conductor rotors move along the axis of the input end and are driven by the linkage 202.
At least two guide rods 101 are arranged on the conductor rotor, the guide rods 101 penetrate through the transmission disc 1, the transmission disc 1 is connected with the input end, and the conductor rotor is sleeved on the input end. The number of the guide rods can be 2-8, and the specific number can be determined according to actual conditions, and is generally 4.
One side of the conductor rotor close to the connecting rod 202 is fixedly provided with a sliding sleeve 4, the sliding sleeve 4 is sleeved on the input end, the sliding sleeve 4 is sleeved with a bearing group 401, the sliding sleeve 4 can rotate along with the inner ring of the bearing group 401, and the other end of the connecting rod 202 is hinged on the outer wall of the bearing group 401.
The input end is a shaft, and the transmission disc 1 is connected with the shaft through a key;
or the input end comprises a shaft and a shaft sleeve sleeved outside the shaft, the transmission disc 1 is fixedly connected with the input end shaft sleeve 10, and the shaft is connected with the shaft sleeve through the input end expansion sleeve 1001. The shaft and the shaft sleeve are fixedly connected through the expansion sleeve.
The output end is a shaft or a shaft sleeve and is fixedly connected with the permanent magnet rotor, the output end shaft sleeve 14 can be connected with the permanent magnet rotor through a bolt and also can be integrally arranged with the permanent magnet rotor, and the output end shaft sleeve 14 is fixedly connected with the output shaft through an output end expansion sleeve 1401.
The drive shaft 2 is rotatably connected by a bearing and fixed by a bearing housing 203. The bearing support 203 may be fixed to the ground or a fixed frame.
The bearing set generally includes a plurality of bearings and a bearing seat for fixing the plurality of bearings.
The driving shaft 2 can be driven by a motor or an actuator, and the conductor rotor moves along the axis of the input end so as to change the coupling area between the permanent magnet rotor and the conductor rotor, realize torque transmission with different sizes and achieve the purposes of speed reduction and energy saving.
The drive shaft 2 rotates, drives the rocking arm 201 to swing and then pulls the conductor rotor through the connecting rod 202 to move along the input end, because the conductor rotor is spacing by the guide arm 101, when the input end rotates, can also drive the conductor rotor to rotate through the driving disc 101.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, unless otherwise specified, "a plurality" means two or more.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected 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 through specific situations.
The technical features that the utility model has not been described can be realized through or adopt prior art, and no longer give unnecessary details here, and of course, the above-mentioned explanation is not right the utility model discloses a restriction, the utility model discloses also not only be limited to the above-mentioned example, ordinary skilled person in this technical field is in the utility model discloses a change, modification, interpolation or replacement made in the essential scope also should belong to the utility model discloses a protection scope.
Claims (10)
1. A kind of double magnetic ring external permanent magnet speed regulator, including input end and carry-out terminal that set up coaxially, there are conductor rotors on the said input end, there are permanent magnet rotors on the said carry-out terminal, characterized by that, the said permanent magnet rotor includes the driven disk, there are outer magnetic rings and inner magnetic rings concentrically on the said driven disk;
the conductor rotor comprises a driving disc, conductor rings are concentrically arranged on the driving disc, and the conductor rings are located between the outer magnetic ring and the inner magnetic ring and are provided with gaps.
2. The dual magnetic ring external permanent magnet governor of claim 1, wherein the conductor rings include an outer conductor ring and an inner conductor ring with a gap therebetween.
3. The dual-magnetic ring external permanent magnet speed regulator according to claim 1 or 2, wherein the inner magnetic ring and the outer magnetic ring each comprise a magnetic ring body, a plurality of first grooves are uniformly distributed on an end surface of the magnetic ring body in the circumferential direction, permanent magnets are disposed in the first grooves, the permanent magnets are fixed by a magnetic ring cover disposed outside the magnetic ring body, and the permanent magnets are disposed between the magnetic ring body and the magnetic ring cover.
4. The dual ring external permanent magnet governor of claim 3 wherein the magnet ring body contacts adjacent end faces of the magnet ring cover.
5. The external permanent magnet speed regulator with double magnetic rings as claimed in claim 4, wherein a heat dissipating through hole is disposed on the sidewall of the magnetic ring body and between two adjacent grooves.
6. The external permanent magnet speed regulator with double magnetic rings according to claim 1 or 2, further comprising a speed regulation structure, wherein the speed regulation structure comprises a driving shaft which is rotatably arranged, the axis of the driving shaft is perpendicular to the axis of the input end and is not in the same plane, two ends of the driving shaft are respectively provided with a rocker arm, and the other end of each rocker arm is hinged with one end of a connecting rod;
the transmission disc can rotate along with the conductor rotor, and the conductor rotor can simultaneously do linear motion along the axis of the input end;
the conductor rotator moves along the axis of the input end and is driven by the connecting rod.
7. The external permanent magnet speed regulator of claim 6, wherein the conductor rotor has at least two guide rods, the guide rods pass through the transmission disk, the transmission disk is connected to the input end, and the conductor rotor is sleeved on the input end.
8. The external permanent magnet speed regulator with double magnetic rings according to claim 7, wherein a sliding sleeve is fixedly arranged on one side of the conductor rotor close to the connecting rod, the sliding sleeve is sleeved on the input end, a bearing group is sleeved on the sliding sleeve, the sliding sleeve can rotate along with an inner ring of the bearing group, and the other end of the connecting rod is hinged on an outer wall of the bearing group.
9. The dual-magnetic ring external permanent magnet speed regulator according to claim 6, wherein the input end is a shaft, and the transmission disk is connected with the shaft through a key;
or the input end comprises a shaft and a shaft sleeve sleeved outside the shaft, the transmission disc is fixedly connected with the shaft sleeve, and the shaft is connected with the shaft sleeve through an expansion sleeve.
10. The dual-magnetic ring external permanent magnet speed regulator according to claim 6, wherein the output end is a shaft or a shaft sleeve and is fixedly connected with the permanent magnet rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123301292.7U CN216851725U (en) | 2021-12-24 | 2021-12-24 | Double-magnetic-ring external permanent magnet speed regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123301292.7U CN216851725U (en) | 2021-12-24 | 2021-12-24 | Double-magnetic-ring external permanent magnet speed regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216851725U true CN216851725U (en) | 2022-06-28 |
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ID=82110989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123301292.7U Active CN216851725U (en) | 2021-12-24 | 2021-12-24 | Double-magnetic-ring external permanent magnet speed regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216851725U (en) |
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2021
- 2021-12-24 CN CN202123301292.7U patent/CN216851725U/en active Active
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