High-power permanent magnet speed regulator

Abstract

The utility model discloses a high-power permanent magnet speed regulator, which relates to the technical field of permanent magnet speed regulators and comprises two groups of mounting plates and a driving structure for the mounting plates, a fixing rod is arranged between the mounting plates, and fixing blocks are arranged on the outer walls of the mounting plates. According to the utility model, the problems that the performance of the speed regulator is reduced or fails due to the fact that the changing load of the permanent magnet speed regulator cannot be quickly responded or the permanent magnet rotor is influenced by environmental factors are solved, the permanent magnet speed regulator can quickly respond to the load change in a short time, and more accurate rotating speed and torque control is realized. Therefore, not only is the working efficiency in actual production improved, but also equipment damage and production interruption caused by load change are effectively avoided, the stability of environmental factors is ensured, the service life of the permanent magnet speed regulator is greatly prolonged, the stability and reliability of equipment are improved, and better economic benefits are brought.

Description

Technical Field

[0001] The utility model belongs to the technical field of permanent magnet speed regulators, and specifically relates to a high-power permanent magnet speed regulator. Background Art

[0002] Permanent magnet speed regulation (permanent magnet transmission) is an upgraded product of eddy current permanent magnet coupling transmission. Its simple structure, reliable operation, energy saving and consumption reduction are well applied in modern industry. It is mainly used in energy saving of motor traction systems in industries such as petroleum, petrochemical, electric power, mining, steel, chemical, cement, etc. Its regulator adjusts the relative position of the cylindrical permanent magnet rotor and the cylindrical conductor rotor in the axial direction to change the effective part of the coupling between the permanent magnet rotor and the conductor rotor, that is, to change the torque transmitted between the two, and can achieve repeatable, adjustable and controllable output torque and speed, so as to achieve the purpose of speed regulation and energy saving. Although high-power permanent magnet speed regulators have significant advantages in many applications, such as high efficiency and energy saving, wide adjustment range, low maintenance cost, etc., they still have some disadvantages that cannot be ignored.

[0003] First, the permanent magnet speed regulator can achieve smooth regulation within the adjustment range, but the permanent magnet speed regulator adjusts the rotation speed by adjusting the magnetic field strength between the permanent magnets, which is relatively slow and easy to heat up. The speed regulator with a purely mechanical structure has a slow adjustment speed and cannot respond quickly. In some applications that require fast response, such as fast-changing loads or scenarios that require frequent adjustments, the permanent magnet speed regulator may not be able to meet the requirements.

[0004] In addition, permanent magnet speed regulators have high requirements for the working environment. In harsh environments such as high temperature, high humidity, and strong magnetic fields, the performance of permanent magnet materials may be affected, resulting in performance degradation or failure of the speed regulator. Therefore, when selecting a permanent magnet speed regulator, it is necessary to fully consider its working environment factors and how to reduce the impact of the external environment on the permanent magnet speed regulator, causing performance degradation.

[0005] The existing patent (application number: 202320289793.8) proposes that this application involves a speed regulating mechanism and a permanent magnet speed regulator, wherein the speed regulating mechanism is arranged in the housing of the permanent magnet speed regulator, and includes: a support seat; a sliding structure, which is slidingly arranged on the main shaft of the permanent magnet speed regulator, and is used to connect with the permanent magnet rotor or the conductor rotor of the permanent magnet speed regulator; a driving structure, including a number of screws rotatably arranged on the support seat, a number of screw sleeves fixedly arranged on the sliding structure and corresponding to the screws one by one, and a driving assembly for driving the screws to rotate synchronously, and the several screws are respectively threaded with the several screw sleeves. This scheme uses a transmission assembly composed of several groups of screws and screw sleeves to replace the transmission structure composed of large-size external thread sleeves and internal thread sleeves. The structure is simpler, the manufacturing difficulty is smaller, and the accuracy of air gap adjustment can be guaranteed. The device has a complex structure, which makes the adjustment response speed of the speed regulator unable to respond quickly. In view of this, this application is specially proposed. Summary of the invention

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a high-power permanent magnet speed regulator so that the permanent magnet speed regulator can quickly respond to load changes in a short time, thereby achieving the purpose of more accurate speed and torque control.

[0007] In order to solve the above technical problems, the utility model provides a high-power permanent magnet speed regulator, comprising:

[0008] Mounting plate;

[0009] A driving structure for mounting plates, wherein the mounting plates are symmetrically arranged in two groups, and fixing rods are arranged between the mounting plates, and fixing blocks are arranged on the outer walls of the mounting plates;

[0010] Furthermore, the driving structure includes a driving motor and a servo electric cylinder module, the driving motor is mounted on the outer wall of the mounting plate, the driving shaft of the driving motor passes through the mounting plate and extends to the outside of the mounting plate and is connected to a conductor wheel rotor, the inner cavity of the conductor wheel rotor is provided with a permanent magnet rotor, and there is an air gap between the conductor wheel rotor and the permanent magnet rotor, a rotating shaft is slidably connected to the inner wall of the permanent magnet rotor, a permanent magnet ring of an off-axis absolute magnetic rotary encoder is installed on the outer wall of the rotating shaft, a bearing is installed on the outer wall of the rotating shaft, a fixed cylinder is installed on the outer wall of the bearing, a sensing end of the off-axis absolute magnetic rotary encoder is installed at the port of the fixed cylinder, the fixed cylinder is mounted on the outer wall of the mounting plate, one end of the fixed cylinder passes through the mounting plate and extends to the outer wall of the mounting plate where a fan is installed, and the rotating shaft is connected to the fan.

[0011] Furthermore, a limiting cylinder is rotatably connected to the outer wall of the permanent magnet rotor, a protrusion is provided on the outer wall of the limiting cylinder, the servo electric cylinder module is installed on the side wall of the mounting plate, a screw rod is installed at the driving end of the servo electric cylinder module, one end of the screw rod passes through the mounting plate and extends to the outer side of the mounting plate and is threadedly connected to a slider, a clamp is installed on the outer wall of the slider, the clamp is connected to the outer wall of the protrusion, a limiting rod is slidably connected to the outer wall of the slider, and one end of the limiting rod is fixedly installed on the outer wall of the mounting plate.

[0012] Furthermore, the shielding structure includes a shielding plate, which is installed on the outer wall of the fixed block through bolts, a mounting tube is installed on the outer wall of the shielding plate, an inlet fan is installed at the port of the mounting tube, an outlet fan is installed on the outer wall of the shielding plate, a temperature sensor is installed on the inner wall of the shielding plate, and a control module is arranged on the outer wall of the drive motor, and the control module is respectively connected to the drive motor, the servo electric cylinder module, the off-axis absolute magnetic rotary encoder sensor end, the inlet fan, the outlet fan and the temperature sensor through wires, and the connection method is electrical connection.

[0013] Furthermore, the fixing blocks are provided in multiple groups and are respectively located on the outer wall of the mounting plate, the conductor wheel rotor and the permanent magnet rotor are connected by magnetic coupling, and the rotating shaft is located in the inner cavity of the limiting cylinder.

[0014] Furthermore, the permanent magnet ring of the off-axis absolute magnetic rotary encoder is located at one side of the sensing end of the off-axis absolute magnetic rotary encoder, and the fixing cylinder is located at the port of the limiting cylinder and the connection method is a sliding connection.

[0015] Furthermore, the protrusions are provided in two groups and are respectively located on opposite outer walls of the limiting cylinder, the screw rod is located directly below the conductor wheel rotor, and the connection mode between the screw rod and the mounting plate is a rotational connection.

[0016] Furthermore, the splints are provided in two groups and are respectively located on the opposite outer walls of the slider, and the cross-section of the splints is an arc-shaped structure, the limit rods are provided in two groups and are respectively located on the outer walls of the slider, and the limit rods are located on one side of the screw rod, and the cross-section of the shielding plate is a concave structure.

[0017] Furthermore, the mounting tubes are provided in two groups and are respectively located on the outer wall of the shielding plate, and the mounting tubes are inclined 45 degrees relative to the horizontal plane, the exhaust fans are provided in two groups and are respectively located on the outer wall of the shielding plate, and the inlet fans and the outlet fans are respectively located on the opposite outer walls of the shielding plate.

[0018] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art.

[0019] 1. In the utility model, the driving shaft of the driving motor drives the conductor wheel rotor to rotate, so that the conductor wheel rotor drives the permanent magnet rotor to rotate, and then the permanent magnet rotor drives the rotating shaft to rotate. When the rotating shaft drives the permanent magnet ring of the off-axis absolute magnetic rotary encoder to rotate, the sensor end of the off-axis absolute magnetic rotary encoder generates speed data. When the load at one end of the rotating shaft changes, the speed of the rotating shaft will be affected and changed. The device can timely sense the load change of the rotating shaft, so that the driving end of the servo electric cylinder module drives the screw to rotate, and then the screw thread drives the slider to move horizontally, so that The slider drives the limit cylinder to move laterally through the clamping plate, so that the limit cylinder drives the permanent magnet rotor to move laterally on the outer wall of the rotating shaft, so that the air gap between the permanent magnet rotor and the conductor wheel rotor changes, thereby achieving the effect of adjusting the rotation speed, thereby solving the problem that the permanent magnet speed regulator adjusts the rotation speed by adjusting the magnetic field strength between the permanent magnets, which is relatively slow and easy to generate heat. The speed regulator with a purely mechanical structure has a slow adjustment speed and cannot respond quickly. In some applications that require fast response, such as rapidly changing loads or scenarios that require frequent adjustments, the permanent magnet speed regulator may not be able to meet the requirements.

[0020] 2. In the utility model, the shielding plate prevents interference from the external magnetic field environment and can increase the service life of the permanent magnet rotor. The temperature sensor generates data according to the ambient temperature. When the set numerical range is reached, the inlet fan operates to drive the external gas, so that the airflow enters the inner cavity of the shielding plate. At the same time, the outlet fan operates to suck the gas in the inner cavity of the shielding plate, and forms an air duct in the inner cavity of the shielding plate for cooling, thereby solving the problem that the permanent magnet speed regulator has high requirements for the working environment. In harsh environments such as high temperature, high humidity, and strong magnetic fields, the performance of permanent magnet materials may be affected, resulting in performance degradation or failure of the speed regulator. Therefore, when selecting a permanent magnet speed regulator, it is necessary to fully consider its working environment factors and how to reduce the impact of the external environment on the permanent magnet speed regulator, resulting in performance degradation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work. In the accompanying drawings:

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0023] Figure 2 It is a structural schematic diagram of the conductor wheel rotor of the utility model.

[0024] Figure 3 It is a structural schematic diagram of the rotating shaft of the utility model.

[0025] Figure 4 It is a structural schematic diagram of the analysis of the limit cylinder of the utility model.

[0026] Figure 5 It is a schematic diagram of the enlarged structure of A of the utility model.

[0027] Numbers in the figure: 1. Mounting plate; 2. Driving structure; 201. Driving motor; 202. Servo electric cylinder module; 203. Conductor wheel rotor; 204. Permanent magnet rotor; 205. Air gap; 206. Rotating shaft; 207. Permanent magnet ring of off-axis absolute magnetic rotary encoder; 208. Bearing; 209. Fixed cylinder; 210. Sensing end of off-axis absolute magnetic rotary encoder; 211. Fan; 212. Limit cylinder; 213. Bump; 214. Screw; 215. Slider; 216. Clamp; 217. Limit rod; 218. Control module; 3. Fixed rod; 4. Fixed block; 5. Shielding structure; 501. Shielding plate; 502. Mounting cylinder; 503. Inlet fan; 504. Outlet fan; 505. Temperature sensor. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0029] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Briefly explain the purpose of setting up the device and why the device needs to be improved.

[0032] When the load of the speed regulator changes, causing a significant change in the load of the permanent magnet rotor, its adjustment structure will drive the permanent magnet rotor to adjust, causing the positions of the permanent magnet rotor and the conductor wheel rotor to change. Therefore, the speed regulator needs to respond quickly to achieve the adjustment operation.

[0033] like Figures 1 to 5 As shown, the utility model provides a high-power permanent magnet speed regulator.

[0034] Specifically, by Figure 1-5 A driving structure 2 for mounting plates 1 is provided, two groups of mounting plates 1 are symmetrically arranged, and fixing rods 3 are arranged between the mounting plates 1, and fixing blocks 4 are arranged on the outer walls of the mounting plates 1;

[0035] The driving structure 2 includes a driving motor 201 and a servo electric cylinder module 202. The driving motor 201 is installed on the outer wall of the mounting plate 1. The driving shaft of the driving motor 201 passes through the mounting plate 1 and extends to the outside of the mounting plate 1 and is connected to a conductor wheel rotor 203. The inner cavity of the conductor wheel rotor 203 is provided with a permanent magnet rotor 204, and there is an air gap 205 between the conductor wheel rotor 203 and the permanent magnet rotor 204. A rotating shaft 206 is slidably connected to the inner wall of the permanent magnet rotor 204. An off-axis absolute magnetic rotary encoder permanent magnet ring 207 is installed on the outer wall of the rotating shaft 206. A bearing 208 is installed on the outer wall of the rotating shaft 206. A fixed cylinder 209 is installed on the outer wall of the bearing 208. A sensor end 210 of the off-axis absolute magnetic rotary encoder is installed at the port of the fixed cylinder 209. The fixed cylinder 209 is provided with a fixed magnet. It is mounted on the outer wall of the mounting plate 1, one end of the fixed cylinder 209 penetrates the mounting plate 1 and extends to the outer wall of the mounting plate 1, and a fan 211 is installed on it. The rotating shaft 206 is connected to the fan 211. The outer wall of the permanent magnet rotor 204 is rotatably connected to the limiting cylinder 212, and a protrusion 213 is arranged on the outer wall of the limiting cylinder 212. The servo electric cylinder module 202 is mounted on the side wall of the mounting plate 1, and a screw rod 214 is installed on the driving end of the servo electric cylinder module 202. One end of the screw rod 214 penetrates the mounting plate 1 and extends to the outer side of the mounting plate 1, and is threadedly connected to a slider 215. A clamping plate 216 is installed on the outer wall of the slider 215, and the clamping plate 216 is connected to the outer wall of the protrusion 213. A limiting rod 217 is slidably connected to the outer wall of the slider 215, and one end of the limiting rod 217 is fixedly mounted on the outer wall of the mounting plate 1.

[0036] The off-axis absolute magnetic rotary encoder in the utility model monitors the rotation speed of the rotating shaft 206 in real time. When the load is large and causes the speed of the rotating shaft 206 to change, the servo electric cylinder module 202 drives the screw rod 214 to rotate, so that the screw rod 214 drives the slider 215 to move horizontally, so that the slider 215 drives the limit cylinder 212 to move horizontally through the clamping plate 216.

[0037] Furthermore, as a specific implementation of the utility model, the utility model provides a high-power permanent magnet speed regulator.

[0038] Specifically, Figure 1-3 As shown, the shielding structure 5 includes a shielding plate 501, which is installed on the outer wall of the fixing block 4 by bolts, a mounting tube 502 is installed on the outer wall of the shielding plate 501, an inlet fan 503 is installed at the port of the mounting tube 502, an outlet fan 504 is installed on the outer wall of the shielding plate 501, a temperature sensor 505 is installed on the inner wall of the shielding plate 501, and a control module 218 is arranged on the outer wall of the driving motor 201. The control module 218 is respectively connected to the driving motor 201, the servo electric cylinder module 202, the off-axis absolute magnetic rotary encoder sensor end 210, the inlet fan 503, the outlet fan 504 and the temperature sensor 505 through wires, and the connection method is that under the action of electrical connection, the device is powered on and operates.

[0039] In the utility model, the shielding plate 501 is in the shape of a shell and is located on the outside of the driving structure 2, so that the permanent magnet rotor 204 in the driving structure 2 is located in its inner cavity, which prevents interference from the external magnetic field environment and increases the service life of the permanent magnet rotor 204. The control module 218 is electrically connected through the wire, so that the device is powered on and operates.

[0040] Furthermore, as another specific implementation of the utility model, the utility model provides a high-power permanent magnet speed regulator.

[0041] Specifically, Figure 4-5 As shown, multiple groups of fixing blocks 4 are provided and are respectively located on the outer wall of the mounting plate 1 , the conductor wheel rotor 203 and the permanent magnet rotor 204 are connected by magnetic coupling, and the rotating shaft 206 is located in the inner cavity of the limiting cylinder 212 .

[0042] The conductor wheel rotor 203 and the permanent magnet rotor 204 of the utility model are connected in a magnetic coupling connection, and the conductor wheel rotor 203 and the permanent magnet rotor 204 have no mechanical contact, thus realizing a transmission mode without mechanical connection between the transmission end and the load, and greatly reducing system vibration.

[0043] Furthermore, as another specific implementation of the utility model, the utility model provides a high-power permanent magnet speed regulator.

[0044] Specifically, Figure 5 As shown, the off-axis absolute magnetic rotary encoder permanent magnet ring 207 is located at one side of the off-axis absolute magnetic rotary encoder sensing end 210, and the fixing cylinder 209 is located at the end of the limiting cylinder 212 and the connection mode is a sliding connection.

[0045] In the utility model, the permanent magnet ring 207 of the off-axis absolute magnetic rotary encoder is located on one side of the sensor end 210 of the off-axis absolute magnetic rotary encoder. When the rotating shaft 206 drives the permanent magnet ring 207 of the off-axis absolute magnetic rotary encoder to rotate, the sensor end 210 of the off-axis absolute magnetic rotary encoder generates speed data. When the load at one end of the rotating shaft 206 changes, the speed of the rotating shaft 206 will be affected and changed. The device can timely sense the load change of the rotating shaft 206, thereby performing perception and adjustment more quickly.

[0046] Furthermore, as another specific implementation of the utility model, the utility model provides a high-power permanent magnet speed regulator.

[0047] Specifically, Figure 2-4 As shown, two groups of protrusions 213 are provided and are respectively located on opposite outer walls of the limiting cylinder 212, and the screw rod 214 is located directly below the conductor wheel rotor 203. The screw rod 214 and the mounting plate 1 are connected in a rotating manner.

[0048] In the present invention, the protrusion 213 connects the limiting cylinder 212 and the clamping plate 216 , so that the slider 215 drives the limiting cylinder 212 to move horizontally through the protrusion 213 .

[0049] Furthermore, as another specific implementation of the utility model, the utility model provides a high-power permanent magnet speed regulator.

[0050] Specifically, Figure 2-3 As shown, two groups of clamps 216 are provided and are respectively located on the opposite outer walls of the slider 215, and the cross-section of the clamps 216 is an arc-shaped structure, two groups of limit rods 217 are provided and are respectively located on the outer walls of the slider 215, and the limit rods 217 are located on one side of the screw rod 214, and the cross-section of the shielding plate 501 is a concave structure.

[0051] In the present invention, when the slider 215 moves, the limiting rod 217 limits the slider 215 so that the slider 215 can only move horizontally, which has better stability.

[0052] Furthermore, as another specific implementation of the utility model, the utility model provides a high-power permanent magnet speed regulator.

[0053] Specifically, Figure 2-4 As shown, two groups of mounting tubes 502 are provided and are respectively located on the outer walls of the shielding plate 501, and the mounting tubes 502 are inclined 45 degrees relative to the horizontal plane, two groups of exhaust fans 504 are provided and are respectively located on the outer walls of the shielding plate 501, and the inlet fans 503 and the exhaust fans 504 are respectively located on the opposite outer walls of the shielding plate 501, and the inlet fans 503 are tilted and aligned with the conductor wheel rotor 203.

[0054] In the present invention, the inlet fan 503 is tilted and aligned with the conductor wheel rotor 203, and the inlet fan 503 blows air to cool the rotor, while the outlet fan 505 operates to suck out the gas in the inner cavity of the shielding plate 501, forming an air duct in the inner cavity of the shielding plate 501 for cooling.

[0055] Working principle: When the driving motor 201 is running, the driving shaft of the driving motor 201 drives the conductor wheel rotor 203 to rotate. Under the effect of magnetic coupling connection, the conductor wheel rotor 203 drives the permanent magnet rotor 204 to rotate, and then the permanent magnet rotor 204 drives the rotating shaft 206 to rotate. At the same time, the off-axis absolute magnetic rotary encoder permanent magnet ring 207 is located on one side of the off-axis absolute magnetic rotary encoder sensor end 210. When the rotating shaft 206 drives the off-axis absolute magnetic rotary encoder permanent magnet ring 207 to rotate, the off-axis absolute magnetic rotary encoder sensor end 210 generates speed data. When the load at one end of the rotating shaft 206 changes, the speed of the rotating shaft 206 will be affected and changed, and the device can timely sense the load change of the rotating shaft 206. The driving end of the servo electric cylinder module 202 drives the screw rod 214 to rotate, and then the screw rod 214 thread drives the slider 215 to move laterally, so that the slider 215 drives the limit cylinder 212 to move laterally through the clamping plate 216, so that the limit cylinder 212 drives the permanent magnet rotor 204 to move laterally on the outer wall of the rotating shaft 206, so that the air gap 205 between the permanent magnet rotor 204 and the conductor wheel rotor 203 changes, thereby adjusting the rotation speed more quickly, thereby solving the problem that the permanent magnet speed regulator adjusts the rotation speed by adjusting the magnetic field strength between the permanent magnets, which is relatively slow and easy to heat up. The speed regulator with a purely mechanical structure has a slow adjustment speed and cannot respond quickly. In some applications that require fast response, such as rapidly changing loads or scenes that require frequent adjustments, the permanent magnet speed regulator may not meet the requirements.

[0056] At the same time, the shielding plate 501 is a concave structure and is located on the outside of the driving structure 2, so that the permanent magnet rotor 204 in the driving structure 2 is located in the inner cavity of the shielding plate 501. The shielding plate 501 prevents interference from the external magnetic field environment and can increase the service life of the permanent magnet rotor 204. Since the mounting cylinder 502 is provided with two groups and is respectively located on the outer wall of the shielding plate 501, and the mounting cylinder 502 is inclined 45 degrees relative to the horizontal plane, and the exhaust fan 504 is provided with two groups and is respectively located on the outer wall of the shielding plate 501, the temperature sensor 504 generates data according to the ambient temperature. When the set value range is reached, The operation of the inlet fan 503 drives the external gas, so that the airflow enters the inner cavity of the shielding plate 501. At the same time, the outlet fan 504 operates to suck the gas in the inner cavity of the shielding plate 501, and forms an air duct in the inner cavity of the shielding plate 501 to facilitate cooling, thereby solving the problem that the permanent magnet speed regulator has high requirements for the working environment. In harsh environments such as high temperature, high humidity, and strong magnetic fields, the performance of permanent magnet materials may be affected, resulting in performance degradation or failure of the speed regulator. Therefore, when selecting a permanent magnet speed regulator, it is necessary to fully consider its working environment factors and how to reduce the impact of the external environment on the permanent magnet speed regulator and cause performance degradation.

[0057] The above is only a preferred embodiment of the present invention, and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the present invention.

Claims

1. A high-power permanent magnet speed regulator, comprising: A mounting plate (1); a driving structure (2) for the mounting plate (1), wherein the mounting plate (1) is symmetrically arranged in two groups, and a fixing rod (3) is arranged between the mounting plates (1); and a fixing block (4) is arranged on the outer wall of the mounting plate (1); The drive structure (2) comprises a drive motor (201) and a servo electric cylinder module (202); the drive motor (201) is mounted on the outer wall of the mounting plate (1); a drive shaft of the drive motor (201) passes through the mounting plate (1) and extends to the outer side of the mounting plate (1) and is connected to a conductor wheel rotor (203); a permanent magnet rotor (204) is arranged in the inner cavity of the conductor wheel rotor (203); an air gap (205) is provided between the conductor wheel rotor (203) and the permanent magnet rotor (204); a rotating shaft (206) is slidably connected to the inner wall of the permanent magnet rotor (204); and the rotating shaft (206) is connected to the inner wall of the permanent magnet rotor (204). An off-axis absolute magnetic rotary encoder permanent magnet ring (207) is mounted on the outer wall of the rotating shaft (206); a bearing (208) is mounted on the outer wall of the rotating shaft (206); a fixed cylinder (209) is mounted on the outer wall of the bearing (208); a sensing end (210) of the off-axis absolute magnetic rotary encoder is mounted at the end of the fixed cylinder (209); the fixed cylinder (209) is mounted on the outer wall of the mounting plate (1); one end of the fixed cylinder (209) penetrates the mounting plate (1) and extends to the outer wall of the mounting plate (1); a fan (211) is mounted on the rotating shaft (206); and the fan (211) is connected to the rotating shaft (206).

2. A high-power permanent magnet speed regulator according to claim 1, characterized in that: A limit cylinder (212) is rotatably connected to the outer wall of the permanent magnet rotor (204), a protrusion (213) is provided on the outer wall of the limit cylinder (212), the servo electric cylinder module (202) is mounted on the side wall of the mounting plate (1), a lead screw (214) is mounted on the driving end of the servo electric cylinder module (202), one end of the lead screw (214) penetrates the mounting plate (1) and extends to the outer side of the mounting plate (1) and is threadedly connected to a slider (215), a clamping plate (216) is mounted on the outer wall of the slider (215), the clamping plate (216) is connected to the outer wall of the protrusion (213), a limit rod (217) is slidably connected to the outer wall of the slider (215), and one end of the limit rod (217) is fixedly mounted on the outer wall of the mounting plate (1).

3. A high-power permanent magnet speed regulator according to claim 2, characterized in that: The invention also comprises a shielding structure (5), wherein the shielding structure (5) comprises a shielding plate (501), wherein the shielding plate (501) is mounted on the outer wall of the fixing block (4) by means of bolts, wherein a mounting tube (502) is mounted on the outer wall of the shielding plate (501), an inlet fan (503) is mounted at the port of the mounting tube (502), an outlet fan (504) is mounted on the outer wall of the shielding plate (501), and a temperature sensor (505) is mounted on the inner wall of the shielding plate (501).

4. A high-power permanent magnet speed regulator according to claim 2, characterized in that: A control module (218) is arranged on the outer wall of the drive motor (201); the control module (218) is respectively connected to the drive motor (201), the servo electric cylinder module (202), the off-axis absolute magnetic rotary encoder sensor end (210), the inlet fan (503), the outlet fan (504) and the temperature sensor (505) through wires, and the connection method is electrical connection; a plurality of groups of the fixing blocks (4) are arranged and are respectively located on the outer wall of the mounting plate (1); the conductor wheel rotor (203) and the permanent magnet rotor (204) are connected in a magnetic coupling connection; and the rotating shaft (206) is located in the inner cavity of the limiting cylinder (212).

5. A high-power permanent magnet speed regulator according to claim 2, characterized in that: The off-axis absolute magnetic rotary encoder permanent magnet ring (207) is located on one side of the off-axis absolute magnetic rotary encoder sensing end (210), and the fixing cylinder (209) is located at the end of the limiting cylinder (212) and the connection method is a sliding connection.

6. A high-power permanent magnet speed regulator according to claim 2, characterized in that: The protrusions (213) are provided in two groups and are respectively located on opposite outer walls of the limiting cylinder (212); the screw rod (214) is located directly below the conductor wheel rotor (203); and the screw rod (214) and the mounting plate (1) are connected in a rotational manner.

7. A high-power permanent magnet speed regulator according to claim 3, characterized in that: The clamping plates (216) are provided in two groups and are respectively located on the outer walls of the slider (215) that are opposite to each other, and the cross section of the clamping plates (216) is an arc-shaped structure, the limiting rods (217) are provided in two groups and are respectively located on the outer walls of the slider (215), and the limiting rods (217) are located on one side of the screw rod (214), and the cross section of the shielding plate (501) is a concave structure.

8. A high-power permanent magnet speed regulator according to claim 3, characterized in that: The mounting tubes (502) are provided in two groups and are respectively located on the outer wall of the shielding plate (501), and the mounting tubes (502) are inclined at 45 degrees relative to the horizontal plane. The exhaust fans (504) are provided in two groups and are respectively located on the outer wall of the shielding plate (501), and the inlet fans (503) and the exhaust fans (504) are respectively located on the outer walls opposite to each other of the shielding plate (501).

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