Magnetic suspension bearing rotor structure
By introducing a meter-shaped connecting block and bolt and nut system into the magnetic levitation bearing rotor structure, combining the design of blocks and grip grooves, the problem of separation between the rotor and the stator in the prior art is solved, and the stability under high-speed rotation is achieved And quick maintenance ease.
Patent Information
- Application Number
- CN202420969562.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-05-07
AI Technical Summary
The existing magnetic levitation bearing rotor structure needs to be decomposed when maintenance is required, resulting in difficulty in installation and separation and affecting the convenience of maintenance.
A magnetically suspended bearing rotor structure including a first rotor and a second rotor is designed to achieve rapid separation and reassembly of the rotor and the stator through a combination of a meter-shaped connecting block and a combination of a connecting slot, a bolt and nut, a block and a gripping slot. .
The rotor stability is ensured at high speed, and the design of blocks and limit rings prevents loosening, which enables rapid separation and maintenance of the rotor and stator, and facilitates installation and disassembly of the device.
Smart Images
Figure CN222163245U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of magnetic suspension bearing rotors, in particular to a magnetic suspension bearing rotor structure. Background Art
[0002] The basic working principle of magnetic bearings is to generate electromagnetic force through the electromagnets in the stator to keep the rotor in a suspended state. However, most common rotors on the market are integrally formed and installed in the stator through multiple sets of external limit rings. Therefore, if the rotor and stator are to be separated for maintenance, the entire magnetic bearing needs to be disassembled. In view of the above situation, technical innovation is carried out based on the existing magnetic bearing rotor structure. Utility Model Content
[0003] The purpose of the utility model is to provide a magnetic suspension bearing rotor structure to solve the problems raised in the above background technology.
[0004] To achieve the above object, the utility model provides the following technical solution: a magnetic bearing rotor structure, comprising:
[0005] A first rotor and a second rotor, a 'M'-shaped connecting block is provided on the left side of the second rotor, a 'M'-shaped connecting groove is provided on the right side of the first rotor, and the 'M'-shaped connecting block is inserted into the 'M'-shaped connecting groove, wherein:
[0006] A first hexagonal hole is provided on the right side of the second rotor, a first through hole is provided on the left side of the hexagonal hole, a square hole is provided on the left side of the first rotor, a second through hole is provided on the right side of the square hole, bolts are placed in the first hexagonal hole, the first through hole, the second through hole and the square hole, a nut is screwed on the outer wall of the bolt, and the nut is located in the square hole.
[0007] Preferably, a square block is placed in the square hole, a second hexagonal hole is opened on the right side of the square block, a socket is opened on the left side of the second hexagonal hole, the nut is located in the second hexagonal hole, the left side of the driving bolt is inserted in the socket, and a holding groove is opened on the left side of the square block.
[0008] Preferably, the outer side wall of the first rotor is provided with a first flange ring and a first limiting ring, and the outer side wall of the second rotor is provided with a second flange ring and a second limiting ring.
[0009] Preferably, a stator is placed on the outer ring of the connection between the first rotor and the second rotor, a first electromagnet is placed in the inner cavity of the stator, and a group of second electromagnets are placed on both left and right sides of the stator.
[0010] Preferably, the first limiting ring is located on the left side of the second electromagnet on the left side of the stator, and the second limiting ring is located on the right side of the second electromagnet on the right side of the stator.
[0011] Preferably, the left side of the first flange ring is flush with the left side of the first rotor, and the right side of the second flange ring is flush with the right side of the second rotor.
[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0013] The utility model connects the second rotor with the first rotor through the cross-shaped connecting block, and then tightens the nut to form a complete rotor shaft. The block is inserted into the square hole of the first rotor. At this time, the nut can be limited by the second inner hexagonal hole on the block, and the bolt can be limited by the second inner hexagonal hole on the second rotor. This can prevent the first rotor and the second rotor from rotating and becoming loose due to the rotation of the bolt and the nut. When the first flange ring on the first rotor is connected to the external rotating shaft, the external rotating shaft will squeeze the block to ensure the installation stability of the block, so as to ensure that the first rotor and the second rotor can still be in a stable state under high-speed rotation after the connection.
[0014] The block can be easily pulled off the first rotor through the holding groove. At this time, the nut can be unscrewed, and then the bolt can be pulled out to complete the unlocking of the first rotor and the second rotor. At this time, the first rotor and the second rotor can be easily moved outward and separated from the stator, thereby realizing the rapid separation of the rotor and the stator, thereby improving the convenience of device maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the structure of a magnetic suspension bearing rotor structure of the utility model;
[0016] Figure 2 This is a left side view of a magnetic suspension bearing rotor structure of the utility model;
[0017] Figure 3 This is a front cross-sectional view of a magnetic suspension bearing rotor structure of the utility model.
[0018] In the figure: 1, stator; 11, first electromagnet; 12, second electromagnet; 2, first rotor; 21, second rotor; 22, M-shaped connecting block; 23, first limiting ring; 24, second limiting ring; 25, first flange ring; 26, second flange ring; 3, bolt; 31, nut; 32, block; 33, holding groove. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] See also Figure 1-Figure 3 A magnetic bearing rotor structure includes a first rotor 2 and a second rotor 21, a M-shaped connecting block 22 is fixedly arranged on the left side of the second rotor 21, a M-shaped connecting groove is opened on the right side of the first rotor 2, and the M-shaped connecting block 22 is inserted into the M-shaped connecting groove, wherein:
[0021] A first hexagonal hole is provided on the right side of the second rotor 21, a first through hole is provided on the left side of the hexagonal hole, a square hole is provided on the left side of the first rotor 2, a second through hole is provided on the right side of the square hole, bolts 3 are placed in the first hexagonal hole, the first through hole, the second through hole and the square hole, a nut 31 is screwed on the outer wall of the bolt 3, the nut 31 is located in the square hole, the second rotor 21 is connected to the first rotor 2 through the M-shaped connecting block 22, and then the nut 31 is tightened to form a complete rotor shaft.
[0022] A block 32 is placed in the square hole, a second inner hexagon hole is provided on the right side of the block 32, an insertion hole is provided on the left side of the second inner hexagon hole, a nut 31 is located in the second inner hexagon hole, driving the left side of the bolt 3 to be inserted into the insertion hole, a holding groove 33 is provided on the left side of the block 32, and the block 32 is inserted into the square hole of the first rotor 2. At this time, the nut 31 can be limited by the second inner hexagon hole on the block 32, and the bolt 3 can be limited by the second inner hexagon hole on the second rotor 21, so as to prevent the first rotor 2 and the second rotor 21 from rotating and loosening due to the rotation of the bolt 3 and the nut 31 during high-speed rotation.
[0023] A first flange ring 25 and a first limiting ring 23 are fixedly provided on the outer wall of the first rotor 2, and a second flange ring 26 and a second limiting ring 24 are fixedly provided on the outer wall of the second rotor 21. The first limiting ring 23 and the second limiting ring 24 can limit the left and right positions of the rotor composed of the first rotor 2 and the second rotor 21.
[0024] The stator 1 is placed on the outer ring of the connection between the first rotor 2 and the second rotor 21 , the first electromagnet 11 is placed in the inner cavity of the stator 1 , and a group of second electromagnets 12 are placed on both the left and right sides of the stator 1 .
[0025] The first limiting ring 23 is located on the left side of the second electromagnet 12 on the left side of the stator 1, and the second limiting ring 24 is on the right side of the second electromagnet 12 on the right side of the stator 1. The left side of the first flange ring 25 is flush with the left side of the first rotor 2, and the right side of the second flange ring 26 is flush with the right side of the second rotor 21. When the first flange ring 25 on the first rotor 2 is connected to the external rotating shaft, the external rotating shaft will squeeze the block 32 to ensure the installation stability of the block 32.
[0026] Working principle: The second rotor 21 is connected to the first rotor 2 through the M-shaped connecting block 22, and then the nut 31 is tightened to form a complete rotor shaft. The block 32 is inserted into the square hole of the first rotor 2. At this time, the nut 31 can be limited by the second inner hexagonal hole on the block 32, and the bolt 3 can be limited by the second inner hexagonal hole on the second rotor 21. This can prevent the first rotor 2 and the second rotor 21 from rotating and becoming loose due to the rotation of the bolt 3 and the nut 31. When the first flange ring on the first rotor 2 After 25 is connected to the external shaft, the external shaft will squeeze the block 32 to ensure the installation stability of the block 32. The first limiting ring 23 and the second limiting ring 24 can limit the left and right positions of the rotor composed of the first rotor 2 and the second rotor 21. The block 32 can be easily pulled off the first rotor 2 through the holding groove 33. At this time, the nut 31 can be unscrewed, and then the bolt 3 can be pulled out to complete the unlocking of the first rotor 2 and the second rotor 21. At this time, the first rotor 2 and the second rotor 21 can be easily moved outward and separated from the stator 1.
Claims
1. A magnetic bearing rotor structure, characterized in that: include: A first rotor (2) and a second rotor (21), wherein a '-shaped connecting block (22) is provided on the left side of the second rotor (21), and a '-shaped connecting groove is provided on the right side of the first rotor (2), wherein the '-shaped connecting block (22) is inserted into the '-shaped connecting groove, wherein: A first hexagonal hole is provided on the right side of the second rotor (21), a first through hole is provided on the left side of the hexagonal hole, a square hole is provided on the left side of the first rotor (2), a second through hole is provided on the right side of the square hole, a bolt (3) is placed in the first hexagonal hole, the first through hole, the second through hole and the square hole, a nut (31) is screwed on the outer wall of the bolt (3), and the nut (31) is located in the square hole.
2. The magnetic bearing rotor structure according to claim 1, characterized in that: A square block (32) is placed in the square hole, a second inner hexagon hole is provided on the right side of the square block (32), an insertion hole is provided on the left side of the second inner hexagon hole, the nut (31) is located in the second inner hexagon hole, and the left side of the driving bolt (3) is inserted into the insertion hole, and a holding groove (33) is provided on the left side of the square block (32).
3. The magnetic bearing rotor structure according to claim 2, characterized in that: The outer side wall of the first rotor (2) is provided with a first flange ring (25) and a first limiting ring (23), and the outer side wall of the second rotor (21) is provided with a second flange ring (26) and a second limiting ring (24).
4. The magnetic bearing rotor structure according to claim 3, characterized in that: A stator (1) is placed on the outer ring of the connection between the first rotor (2) and the second rotor (21), a first electromagnet (11) is placed in the inner cavity of the stator (1), and a group of second electromagnets (12) are placed on both left and right sides of the stator (1).
5. The magnetic bearing rotor structure according to claim 4, characterized in that: The first limiting ring (23) is located on the left side of the second electromagnet (12) on the left side of the stator (1), and the second limiting ring (24) is located on the right side of the second electromagnet (12) on the right side of the stator (1).
6. The magnetic bearing rotor structure according to claim 3, characterized in that: The left side of the first flange ring (25) is flush with the left side of the first rotor (2), and the right side of the second flange ring (26) is flush with the right side of the second rotor (21).