A step-type permanent magnet speed regulator

Abstract

The invention discloses a stepped permanent magnet speed regulator, comprising an input end and an output end, wherein the input end is connected to an input shaft on a motor, and the output end is connected to an output shaft on a load, wherein the input end comprises a first rotating shaft connected to the input shaft, and the first rotating shaft is provided with a conductor cylinder which rotates synchronously with the motor, and the output end comprises a second rotating shaft connected to the output shaft, and the second rotating shaft is provided with a permanent magnet tray which rotates synchronously with the load and a regulator for adjusting the forward and backward movement of the permanent magnet tray, wherein the conductor cylinder is in a cylindrical structure, and at least one magnetic conductive ring is provided on the inner ring of the conductor cylinder, and a magnetic seat ring is sleeved on the permanent magnet tray, and a certain gap exists between the magnetic conductive ring and the magnetic seat ring; a plurality of first step steps are provided inside the conductor cylinder, and the magnetic conductive ring is installed on the first step step, and the diameter of the first step step gradually expands from the inner side to the outer side of the conductor cylinder, and a second step step corresponding to the first step step is provided on the permanent magnet tray, and the magnetic seat ring is arranged on the second step step.

Description

Technical Field

[0001] The invention relates to a permanent magnet speed regulator, in particular to a step-type permanent magnet speed regulator. Background Art

[0002] Nowadays, with the development of permanent magnet speed regulators, its influence is gradually expanding. Permanent magnet speed regulators have gradually replaced the position of frequency converters and have been recognized by many users. When the permanent magnet speed regulator is installed on site, a certain distance must be left between the motor and the load for the installation of the permanent magnet speed regulator, so there are certain requirements for the installation environment. For those spaces that are small and the distance left does not meet the installation requirements, the development of the permanent magnet speed regulator is seriously hindered. Therefore, the smaller the installation space required for the permanent magnet speed regulator, the better, in order to meet the requirements of different installation sites. Summary of the invention

[0003] The technical problem to be solved by the present invention is to propose a stepped permanent magnet speed regulator in view of the shortcomings of the above-mentioned prior art, which is not only simple in structure, small in size, low in cost, safe and reliable, and has a long service life, but also further shortens the shaft end distance of the permanent magnet speed regulator (that is, the distance between the motor and the load), reduces the requirements of the permanent magnet speed regulator for on-site installation, can meet the requirements of different installation sites, and further increases the versatility of the equipment.

[0004] In order to solve the above technical problems, the technical solution of the present invention is realized in the following manner: a stepped permanent magnet speed regulator, comprising an input end and an output end, the input end is connected to the input shaft on the motor, the output end is connected to the output shaft on the load, the input end comprises a first rotating shaft connected to the input shaft, the first rotating shaft is provided with a conductor cylinder that rotates synchronously with the motor, the output end comprises a second rotating shaft connected to the output shaft, the second rotating shaft is provided with a permanent magnet tray that rotates synchronously with the load and a regulator for adjusting the forward and backward movement of the permanent magnet tray, the conductor tube is a cylindrical structure, at least one magnetic conductive ring is provided on the inner ring of the conductor tube, a magnetic seat ring is sleeved on the permanent magnet tray, magnets are evenly provided inside the magnetic seat ring along the circumferential direction, the magnetic seat ring is arranged inside the conductor tube, and the positions of the magnetic seat ring and the magnetic conductive ring correspond one to one, and there is a certain gap between the magnetic conductive ring and the magnetic seat ring;

[0005] A plurality of first steps are arranged inside the conductor cylinder, the magnetic conductive ring is installed on the first steps, and the diameter of the first steps gradually increases from the inside to the outside of the conductor cylinder, a second step corresponding to the first step is arranged on the permanent magnet tray, and the magnetic seat ring is arranged on the second step.

[0006] The technical solution further defined in the present invention is:

[0007] In the aforementioned stepped permanent magnet speed regulator, the magnetic ring is a copper ring.

[0008] In the aforementioned stepped permanent magnet speed regulator, a torque disc is provided on the second rotating shaft, and a sliding pin for transmitting torque is provided between the torque disc and the permanent magnet tray.

[0009] The beneficial effects of the present invention are as follows: a plurality of magnetic conductive rings are arranged in the axial direction in the existing conductor cylinder. In order for the permanent magnetic speed regulator to adjust the speed of the load to zero, there must be a certain distance between the magnetic conductive rings, and the distance is at least greater than or equal to the width of one magnetic conductive ring. Therefore, the distance is unavoidable, but it also increases the axial size of the permanent magnetic speed regulator.

[0010] In the present technical solution, since the smaller the gap between the magnetic ring and the magnetic seat ring, the greater the torque generated, a plurality of first steps are arranged inside the conductor tube, and a second step is arranged on the permanent magnet tray. In this way, the magnetic ring and the magnetic seat ring are engaged in the form of steps, and the height distance between the steps is utilized. When the regulator drives the permanent magnet tray to move outward, the outer magnetic ring and the magnetic seat ring are staggered, and the gap between the inner magnetic seat ring and the outer magnetic ring is increased, thereby realizing the speed regulation function. In this way, the distance between the magnetic rings in the prior art is eliminated, thereby reducing the axial size of the conductor tube and the permanent magnet tray, shortening the axial size of the permanent magnet speed regulator, and further reducing the axial installation size of the output shaft and the input shaft, so that the permanent magnet speed regulator can better adapt to different installation environments and increase its versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic diagram of the structure of the invention;

[0012] Figure 2 Schematic diagram of the structure where the magnetic ring and the magnetic seat ring are staggered

[0013] Figure 3 A schematic diagram of the structure of the prior art

[0014] Wherein: 1-first rotating shaft, 2-conductor cylinder, 3-second rotating shaft, 4-permanent magnetic tray, 5-adjuster, 6-magnetic ring, 7-magnetic seat ring, 8-first step, 9-second step, 10-torque plate, 11-sliding pin, 12-magnet. DETAILED DESCRIPTION

[0015] The present invention is further described in detail below: the adjusting machine 5 in the present technical solution is the prior art;

[0016] Example 1

[0017] A stepped permanent magnet speed regulator provided in this embodiment includes an input end and an output end, wherein the input end is connected to an input shaft on a motor, and the output end is connected to an output shaft on a load, wherein the input end includes a first rotating shaft 1 connected to the input shaft, and a conductor cylinder 2 which rotates synchronously with the motor is provided on the first rotating shaft 1, and the output end includes a second rotating shaft 3 connected to the output shaft, and a permanent magnet tray 4 which rotates synchronously with the load and a regulator 5 for adjusting the forward and backward movement of the permanent magnet tray 4 are provided on the second rotating shaft 3, the conductor cylinder 2 is a cylindrical structure, and two magnetic conductive rings 6 are provided on the inner ring of the conductor cylinder, and a magnetic seat ring 7 is sleeved on the permanent magnet tray 4, and magnets 12 are uniformly provided inside the magnetic seat ring 7 along the circumferential direction, and the magnetic seat ring 7 is arranged inside the conductor cylinder 2, and the positions of the magnetic seat ring 7 and the magnetic conductive ring 6 correspond one to one, and there is a certain gap between the magnetic conductive ring 6 and the magnetic seat ring 7;

[0018] Two first steps 8 are provided inside the conductor tube 2, and the magnetic ring 6 is installed on the first step 8, and the diameter of the first step 8 gradually increases from the inside to the outside of the conductor tube 2. Two second steps 9 corresponding to the first step 8 are provided on the permanent magnet tray 4, and the magnetic seat ring 7 is arranged on the second step 9; the magnetic ring 6 is a copper ring; a torque disk 10 is provided on the second rotating shaft 3, and a sliding pin 11 for transmitting torque is provided between the torque disk 10 and the permanent magnet tray 4.

[0019] The working process of this embodiment is as follows: the motor drives the conductor cylinder 2 to rotate, the magnetic ring 6 on the conductor cylinder and the magnet on the permanent magnet tray 4 are inductively coupled to generate torque, thereby driving the permanent magnet tray 4 to rotate, and the permanent magnet tray 4 and the torque disk 10 are rotated synchronously through the sliding pin 11, and then the torque disk 10 drives the load to rotate the second shaft, and then the second shaft drives the load to rotate, and the meshing area between the magnetic ring 6 and the magnetic seat ring 7 is adjusted by adjusting the machine, thereby adjusting the speed of the load.

[0020] Thus, the technical solution of this embodiment is that the smaller the gap between the magnetic ring and the magnetic seat ring, the greater the torque generated, and vice versa. A plurality of first steps are arranged inside the conductor tube, and a second step is arranged on the permanent magnet tray. In this way, the magnetic ring and the magnetic seat ring are engaged in the form of steps. By utilizing the height distance between the steps, when the regulator drives the permanent magnet tray to move outward, the outer magnetic ring and the magnetic seat ring are staggered, and the gap between the inner magnetic seat ring and the outer magnetic ring is increased, thereby realizing the speed regulation function. In this way, the distance between the magnetic rings in the prior art is eliminated, thereby reducing the axial size of the conductor tube and the permanent magnet tray, shortening the axial size of the permanent magnet speed regulator, and then reducing the axial installation size of the output shaft and the input shaft, so that the permanent magnet speed regulator can better adapt to different installation environments and increase its versatility.

[0021] The above embodiments are only for illustrating the technical idea of ​​the present invention, and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the present invention.

Claims

1. A step-type permanent magnet speed regulator, comprising an input end and an output end, wherein the input end is connected to an input shaft on a motor, and the output end is connected to an output shaft on a load, wherein the input end comprises a first rotating shaft (1) connected to the input shaft, wherein the first rotating shaft (1) is provided with a conductor cylinder (2) which rotates synchronously with the motor, and wherein the output end comprises a second rotating shaft (3) connected to the output shaft, wherein the second rotating shaft (3) is provided with a permanent magnet tray (4) which rotates synchronously with the load, and a regulator (5) for regulating the forward and backward movement of the permanent magnet tray (4), wherein the conductor cylinder (2) is in a cylindrical structure, wherein at least one magnetic conductive ring (6) is provided on the inner ring of the conductor cylinder, wherein a magnetic seat ring (7) is sleeved on the permanent magnet tray (4), wherein magnets (12) are uniformly provided inside the magnetic seat ring (7) along the circumferential direction, wherein the magnetic seat ring (7) is arranged inside the conductor cylinder (2), and the positions of the magnetic seat ring (7) and the magnetic conductive ring (6) correspond one to one, and there is a certain gap between the magnetic conductive ring (6) and the magnetic seat ring (7); Features: The conductor tube (2) is provided with a plurality of first steps (8) inside, the magnetic conductive ring (6) is mounted on the first steps (8), and the diameter of the first steps (8) gradually increases from the inside to the outside of the conductor tube (2), the permanent magnetic tray (4) is provided with a second step (9) corresponding to the first step (8), and the magnetic seat ring (7) is arranged on the second step (9).

2. The step-type permanent magnet speed regulator according to claim 1 is characterized in that: The magnetic conductive ring (6) is a copper ring.

3. The step-type permanent magnet speed regulator according to claim 1 is characterized in that: A torque disc (10) is provided on the second rotating shaft (3), and a sliding pin (11) for transmitting torque is provided between the torque disc (10) and the permanent magnetic tray (4).

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