Radial magnetic bearing rotor assembling device

Abstract

The utility model discloses a radial magnetic bearing rotor assembling device which comprises an assembling assembly which comprises a supporting ring. The rotor assembly comprises a baffle ring, a radial magnetic bearing rotor lamination, a steel sleeve, a radial displacement sensor sensing lamination and a compression ring; the steel sleeve is clamped at the upper end in the supporting ring, the radial magnetic bearing rotor lamination is sleeved at the outer side of the upper part of the steel sleeve, the baffle ring is sleeved at the outer side of the upper end of the steel sleeve, the radial displacement sensor sensing lamination is sleeved at the outer side of the lower end of the steel sleeve, and the pressing ring is sleeved at the outer side of the bottom end of the steel sleeve. A steel ring, a radial magnetic bearing rotor lamination and a radial displacement sensor sensing lamination are limited and guided through a base and a supporting ring respectively, so that the radial magnetic bearing rotor lamination and the radial displacement sensor sensing lamination can be kept concentric and collinear with the steel sleeve when being hot-charged to the outer surfaces of the two ends of the steel sleeve; and the advantage of quick assembly is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of radial magnetic bearing rotors, in particular to an assembly device for radial magnetic bearing rotors. Background Art

[0002] Radial magnetic bearing rotors are a key component of magnetic bearing systems, enabling rotor suspension and stable rotation. They are widely used in mechanical devices requiring high precision and stability, such as molecular pumps, artificial heart pumps, high-speed motors, and flywheel energy storage devices.

[0003] When assembling the existing radial magnetic bearing rotor, the radial magnetic bearing rotor laminations and the radial displacement sensor sensing laminations need to be heat-fitted on the steel sleeve. During the heat-fitting process, it is difficult to keep the radial magnetic bearing rotor laminations, the radial displacement sensor sensing laminations and the steel sleeve concentric and collinear, which is inconvenient to use. Therefore, it is necessary to provide a device that can easily guide the radial magnetic bearing rotor and keep the concentricity collinear during assembly, so as to assemble the radial magnetic bearing rotor. Utility Model Content

[0004] The purpose of the present utility model is to provide a radial magnetic bearing rotor assembly device to solve the problem raised in the above background technology that, during the assembly of the existing radial magnetic bearing rotor, the radial magnetic bearing rotor laminations and the radial displacement sensor sensing laminations need to be heat-fitted on a steel sleeve. During the heat-fitting process, it is difficult to keep the radial magnetic bearing rotor laminations, the radial displacement sensor sensing laminations and the steel sleeve concentric and collinear, making it inconvenient to use.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model is a radial magnetic bearing rotor assembly device, comprising an assembly component and a rotor component, wherein the assembly component comprises a support ring; the rotor component comprises a retaining ring, radial magnetic bearing rotor laminations, a steel sleeve, a radial displacement sensor sensing lamination and a pressure ring;

[0007] The steel sleeve is clamped at the upper end position inside the support ring, the radial magnetic bearing rotor lamination is sleeved at the outer position of the upper part of the steel sleeve, the retaining ring is sleeved at the outer position of the upper end of the steel sleeve, the radial displacement sensor sensing lamination is sleeved at the outer position of the lower end of the steel sleeve, and the pressure ring is sleeved at the outer position of the bottom end of the steel sleeve.

[0008] Furthermore, the assembly component also includes a base and a pressing block; the support ring is sleeved on the outer side of the upper end of the base, and the pressing block is placed above the base.

[0009] Furthermore, the retaining ring is located at the upper end of the radial magnetic bearing rotor lamination, and the pressure ring is located at the lower end of the radial displacement sensor sensing lamination.

[0010] Furthermore, the steel sleeve is a cross-shaped structure, and the inner side surface of the steel sleeve and the outer side surface of the base are in contact with each other.

[0011] Furthermore, the bottom end of the pressure block is in contact with the outer sides of the retaining ring and the pressure ring respectively, and the outer ends of the retaining ring and the pressure ring are flush with the top end of the base.

[0012] Furthermore, the base is a T-shaped structure, and the pressing block is a U-shaped structure.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] The utility model limits and guides the steel ring and the radial magnetic bearing rotor laminations and the radial displacement sensor sensing laminations respectively through the base and the support ring, so that when the radial magnetic bearing rotor laminations and the radial displacement sensor sensing laminations are thermally installed on the outer surfaces of both ends of the steel sleeve, they can maintain concentricity and collinearity with the steel sleeve, thereby achieving rapid assembly. In addition, the base and the support ring can support the steel sleeve, so that the steel sleeve will not be deformed inwardly due to the pressing of the radial magnetic bearing rotor laminations and the radial displacement sensor sensing laminations by the pressing block. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the assembly structure of the utility model.

[0016] Figure 2 This is a schematic structural diagram of the first assembly state of the utility model.

[0017] Figure 3 This is a schematic structural diagram of the second assembly state of the utility model.

[0018] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0019] 1. Base; 2. Retaining ring; 3. Radial magnetic bearing rotor laminations; 4. Steel sleeve; 5. Radial displacement sensor sensing laminations; 6. Pressure ring; 7. Pressure block; 8. Support ring. DETAILED DESCRIPTION

[0020] See also Figure 1-3 As shown, this embodiment is a radial magnetic bearing rotor assembly device, including an assembly component and a rotor component. The assembly component includes a support ring 8; the rotor component includes a retaining ring 2, radial magnetic bearing rotor laminations 3, a steel sleeve 4, a radial displacement sensor sensing lamination 5 and a pressure ring 6;

[0021] The steel sleeve 4 is clamped at the upper end position inside the support ring 8, the radial magnetic bearing rotor lamination 3 is sleeved at the upper outer position of the steel sleeve 4, the retaining ring 2 is sleeved at the upper outer position of the steel sleeve 4, the radial displacement sensor sensing lamination 5 is sleeved at the lower outer position of the steel sleeve 4, and the pressure ring 6 is sleeved at the bottom outer position of the steel sleeve 4; the steel sleeve 4 is used to support the radial magnetic bearing rotor lamination 3 and the radial displacement sensor sensing lamination 5, the retaining ring 2 is used to limit the radial magnetic bearing rotor lamination 3, the radial magnetic bearing rotor lamination 3 is used to reduce eddy current loss and improve the efficiency and stability of the magnetic bearing, the radial displacement sensor sensing lamination 5 is used to monitor and adjust the radial position of the rotor in real time to ensure its stable suspension and rotation, and the pressure ring 6 is used to limit the radial displacement sensor sensing lamination 5;

[0022] The assembly assembly also includes a base 1 and a pressure block 7; a support ring 8 is sleeved on the outer side of the upper end of the base 1, and the pressure block 7 is placed above the base 1; the base 1 is used to support the support ring 8, and the support ring 8 is used to support and limit the steel sleeve 4;

[0023] The retaining ring 2 is located at the upper end of the radial magnetic bearing rotor lamination 3, and the pressure ring 6 is located at the lower end of the radial displacement sensor sensing lamination 5; the retaining ring 2 and the pressure ring 6 are respectively located at the outer ends of the steel sleeve 4;

[0024] The steel sleeve 4 is a cross-shaped structure, and the inner side of the steel sleeve 4 is in contact with the outer side of the base 1. By sleeve-fitting the radial magnetic bearing rotor laminations 3 and the radial displacement sensor sensing laminations 5 on the outer surfaces of both ends of the steel sleeve 4, the steel sleeve 4 can support and limit the radial magnetic bearing rotor laminations 3 and the radial displacement sensor sensing laminations 5.

[0025] The bottom end of the pressing block 7 is in contact with the outer sides of the retaining ring 2 and the pressing ring 6 respectively, and the outer ends of the retaining ring 2 and the pressing ring 6 are flush with the top of the base 1; by moving the pressing block 7 downward, the pressing block 7 can press the retaining ring 2 and the pressing ring 6 downward;

[0026] The base 1 is a T-shaped structure, and the pressing block 7 is a U-shaped structure; the pressing block 7 can move downward at the upper end of the base 1 and press with the outer side of the upper end of the base 1;

[0027] When assembling the rotor assembly, the base 1 is fixed on the pressure platform of the press, and the support ring 8 is sleeved on the outer position of the upper end of the base 1, and the steel sleeve 4 is sleeved on the outer surface of the upper end of the base 1, and the steel sleeve 4 is sleeved on the upper end position of the inner part of the support ring 8. Then, the radial magnetic bearing rotor laminations 3 and the retaining ring 2 are heated and kept warm for a period of time, and the radial magnetic bearing rotor laminations 3 and the retaining ring 2 are sleeved on the outer surface of the steel sleeve 4, and the retaining ring 2 is located at the upper end position of the radial magnetic bearing rotor laminations 3. At this time, the press is controlled to drive the pressing block 7 to move downward so that the pressing block 7 presses the radial magnetic bearing rotor laminations 3. The laminations 3 and the retaining ring 2 apply downward pressure along the steel sleeve 4. After the radial magnetic bearing rotor laminations 3 and the retaining ring 2 are pressed into place, after maintaining the pressure for a period of time and waiting for the radial magnetic bearing rotor laminations 3 and the retaining ring 2 to cool, the press is controlled to drive the pressure block 7 to move upward. At this time, the radial magnetic bearing rotor laminations 3 and the retaining ring 2 are fixed on the outer surface of the steel sleeve 4. The direction of the steel sleeve 4 is then turned so that it is sleeved on the upper end of the base 1. The radial displacement sensor sensing laminations 5 and the pressure ring 6 are then heat-fitted to the outer surface of the other end of the steel sleeve 4 according to the above steps. After cooling, they are removed from the base 1, and the rotor assembly can be assembled.

Claims

1. A radial magnetic bearing rotor assembly device, characterized in that: It comprises an assembly component and a rotor component, wherein the assembly component comprises a support ring (8); the rotor component comprises a retaining ring (2), a radial magnetic bearing rotor lamination (3), a steel sleeve (4), a radial displacement sensor sensing lamination (5) and a pressure ring (6); The steel sleeve (4) is clamped at the upper end position inside the support ring (8), the radial magnetic bearing rotor laminations (3) are sleeved at the outer position of the upper part of the steel sleeve (4), the retaining ring (2) is sleeved at the outer position of the upper end of the steel sleeve (4), the radial displacement sensor sensing laminations (5) are sleeved at the outer position of the lower end of the steel sleeve (4), and the pressure ring (6) is sleeved at the outer position of the bottom end of the steel sleeve (4).

2. A radial magnetic bearing rotor assembly device according to claim 1, characterized in that: The assembly component further comprises a base (1) and a pressing block (7); the support ring (8) is sleeved on the outer side of the upper end of the base (1), and the pressing block (7) is placed above the base (1).

3. The radial magnetic bearing rotor assembly device according to claim 1, characterized in that: The retaining ring (2) is located at the upper end of the radial magnetic bearing rotor lamination (3), and the pressure ring (6) is located at the lower end of the radial displacement sensor sensing lamination (5).

4. The radial magnetic bearing rotor assembly device according to claim 1, characterized in that: The steel sleeve (4) is a cross-shaped structure, and the inner side surface of the steel sleeve (4) fits in contact with the outer side surface of the base (1).

5. The radial magnetic bearing rotor assembly device according to claim 2, characterized in that: The bottom end of the pressure block (7) contacts the outer sides of the retaining ring (2) and the pressure ring (6), respectively, and the outer ends of the retaining ring (2) and the pressure ring (6) are flush with the top end of the base (1).

6. The radial magnetic bearing rotor assembly device according to claim 2, characterized in that: The base (1) is a T-shaped structure.

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