Bidirectional magnetic suspension bearing
By introducing radial and axial bearing assemblies into the magnetic levitation bearing, and using multiple sets of magnetic rings and conductive wires to achieve bidirectional levitation support, the problem that existing magnetic levitation bearings can only levitate in one direction is solved, and the rotational accuracy is improved.
Patent Information
- Application Number
- CN202520009283.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2035-01-03
AI Technical Summary
Existing magnetic levitation bearings can only generate levitation force in one direction and cannot provide all-round support for the shaft.
Radial bearing assemblies and axial bearing assemblies are used to generate buoyancy in the radial and axial directions of the shaft, respectively. The shaft is suspended and supported by multiple sets of radial and axial magnetic rings, and the magnetic rings are energized by connecting them to a power source via electrical wires.
It achieves suspension support of the shaft in two directions, reduces offset and vibration, and improves rotational accuracy.
Smart Images
Figure CN223524228U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bearing field especially relates to a two -way magnetic suspension bearing. BACKGROUND
[0002] Magnetic suspension bearing is a kind of equipment using magnetic force principle to suspend rotating shaft in the air, avoid physical contact, thereby eliminating the friction and wear in traditional bearing, improve efficiency and accuracy.Magnetic suspension bearing is widely used in high-speed rotating machinery, precision instruments, aerospace and other high-end industrial equipment, especially suitable for the occasion with high requirements to low friction, long life and high stability.
[0003] In prior art, most magnetic suspension bearings are one-way bearings, one-way magnetic suspension bearing only generates suspension force in one direction (such as axial direction), let the shaft suspend in this direction, cannot make magnetic suspension bearing generate suspension force in two directions (axial direction and radial direction) at the same time, support shaft in all directions. SUMMARY
[0004] Therefore, the utility model provides a two -way magnetic suspension bearing, and the main technical problem to be solved is that the two -way magnetic suspension bearing generates suspension force in two directions (axial direction and radial direction) of shaft at the same time and supports shaft in all directions.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a two -way magnetic suspension bearing, including connecting sleeve, the outer wall one side of connecting sleeve is fixedly connected with shell one, the inside of shell one is provided with radial bearing group, radial bearing group is used for generating buoyancy in the radial direction of shaft, the outer wall other side of connecting sleeve is fixedly connected with shell two, the inside of shell two is provided with axial bearing group, axial bearing group is used for generating buoyancy in the axial direction of shaft.
[0006] By adopting the above technical scheme, radial bearing group and axial bearing group are used to support the radial and axial buoyancy of shaft respectively, reduce the deviation and vibration of shaft in each direction, make the rotation accuracy higher.
[0007] As a further description of the above technical scheme: the radial bearing group includes bearing ring one, the inner wall of shell one is fixedly connected with bearing ring one, the inner wall of bearing ring one is fixedly connected with radial magnetic ring, the radial magnetic ring is provided with multiple groups.
[0008] By adopting the above technical scheme, the radial of shaft is suspended and supported by multiple radial magnetic rings.
[0009] As a further description of the above technical scheme: multiple radial magnetic rings are fixedly connected with wire one in the inside, wire one is provided with multiple, the outer wall of wire one is fixedly connected with total line one.
[0010] By adopting the technical scheme, the plurality of wires is connected with the total line, so that the plurality of radial magnetic rings is conveniently energized.
[0011] As a further description of the above technical scheme, the inside of the total line is fixedly connected with the energizing wire, and the energizing wire is fixedly connected in the inside of the shell.
[0012] By adopting the technical scheme, the energizing wire is connected with the power supply to energize the total line.
[0013] As a further description of the above technical scheme, the axial bearing set comprises a bearing ring two, the inside of the bearing ring two is fixedly connected with the axial magnetic ring, and the axial magnetic ring is provided with a plurality of groups.
[0014] By adopting the technical scheme, the plurality of axial magnetic rings is used to suspend and support the shaft in the axial direction.
[0015] As a further description of the above technical scheme, the outside of the wire two is fixedly connected with the total line two, the outside of the total line two is fixedly connected with the energizing wire two, and the energizing wire two is fixedly connected in the inside of the shell two.
[0016] By adopting the technical scheme, the plurality of wires two is connected with the total line two, and the total line two is energized through the energizing wire two connected with the power supply, so that the plurality of axial magnetic rings is energized.
[0017] By adopting the technical scheme, the bidirectional magnetic suspension bearing has at least the following beneficial effects:
[0018] 1. Compared with the prior art, the bidirectional magnetic suspension bearing produces the buoyancy in the radial direction and the axial direction through the radial bearing set and the axial bearing set respectively, and rotates the shaft, supports the shaft in two directions, reduces the deviation and vibration of the shaft in each direction, and makes the rotation accuracy of the shaft higher.
[0019] 2. Compared with the prior art, the bidirectional magnetic suspension bearing connects the power supply with the energizing wire one and the energizing wire two, energizes the total line one and the total line two through the energizing wire one and the energizing wire two respectively, and combines the plurality of wires one and wires two to deliver the power supply to the plurality of radial magnetic rings and axial magnetic rings, so that the radial magnetic rings and the axial magnetic rings realize the bidirectional suspension support of the shaft and drive the shaft to rotate. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 The bidirectional magnetic suspension bearing is provided with an overall structure diagram.
[0021] Figure 2A radial bearing group structure diagram of a bidirectional magnetic suspension bearing is provided in the utility model.
[0022] Figure 3 A shell two structure diagram of a bidirectional magnetic suspension bearing is provided in the utility model.
[0023] Figure 4 A axial bearing group structure diagram of a bidirectional magnetic suspension bearing is provided in the utility model.
[0024] Legend:
[0025] 1, connecting sleeve; 2, shell one; 3, radial bearing group; 301, bearing ring one; 302, radial magnetic ring; 303, wire one; 304, total line one; 305, power line one; 4, shell two; 5, axial bearing group; 501, bearing ring two; 502, axial magnetic ring; 503, wire two; 504, total line two; 505, power line two. Specific implementation
[0026] Refer to Figures 1-4 The utility model provides a bidirectional magnetic suspension bearing: including connecting sleeve 1, the outer wall one side of connecting sleeve 1 is fixedly connected with shell one 2, the inside of shell one 2 is provided with radial bearing group 3, and shell one 2 plays the protection to radial bearing group 3, and radial bearing group 3 is used to produce the buoyancy of the radial of shaft, and the outer wall other side of connecting sleeve 1 is fixedly connected with shell two 4, and the inside of shell two 4 is provided with axial bearing group 5, and shell two 4 plays the protection to axial bearing group 5, and axial bearing group 5 is used to produce the buoyancy of the axial of shaft.
[0027] Radial bearing group 3 includes bearing ring one 301, and bearing ring one 301 is fixedly connected in the inner wall of shell one 2, and the inner wall of bearing ring one 301 is fixedly connected with radial magnetic ring 302, and radial magnetic ring 302 is provided with multiple groups, and multiple groups of radial magnetic ring 302 are suspended and supported to the radial of shaft, and the inside of multiple groups of radial magnetic ring 302 is fixedly connected with wire one 303, and wire one 303 is provided with multiple, and the outer wall of wire one 303 is fixedly connected with total line one 304, and the inside of total line one 304 is fixedly connected with power line one 305, and power line one 305 is fixedly connected in the inside of shell one 2.
[0028] Axial bearing group 5 includes bearing ring two 501, and bearing ring two 501 is fixedly connected in the inner wall of shell two 4, and the inner wall of bearing ring two 501 is fixedly connected with axial magnetic ring 502, and axial magnetic ring 502 is provided with multiple groups, and multiple groups of axial magnetic ring 502 are suspended and supported to the axial of shaft, and the inside of multiple groups of axial magnetic ring 502 is fixedly connected with wire two 503, and the outer wall of wire two 503 is fixedly connected with total line two 504, and the outer wall of total line two 504 is fixedly connected with power line two 505, and power line two 505 is fixedly connected in the inside of shell two 4.
[0029] Working principle: in use, first, the power line one 305 and the power line two 505 are connected to the power supply, the shaft is penetrated through the connecting sleeve 1, the shaft is placed between the multiple sets of radial magnetic rings 302 and the multiple sets of axial magnetic rings 502, after the power line one 305 and the power line two 505 are powered on, the current is respectively shunted through the total line one 304 and the total line two 504, and then the current is shunted through the multiple wires one 303 and the wires two 503 to power the multiple sets of radial magnetic rings 302 and the axial magnetic rings 502, after the radial magnetic rings 302 and the axial magnetic rings 502 are powered on, the magnetic force is generated, the radial magnetic rings 302 are used to generate the radial buoyancy of the shaft to support and drive the shaft to rotate, the axial magnetic rings 502 are used to generate the axial buoyancy of the shaft to support and drive the shaft to rotate, and then the shaft is supported in the radial direction and the axial direction at the same time, so that the deviation and vibration of the shaft in each direction are reduced in the rotating process, and the rotation accuracy of the shaft is higher.
[0030] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement is carried out to part of technical features, any modification, equivalent replacement, improvement etc. that is made within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.
Claims
1. A bidirectional magnetic bearing comprising a connecting sleeve (1), characterized in that: The outer wall side of the connecting sleeve (1) is fixedly connected with the shell one (2), the inside of the shell one (2) is provided with the radial bearing group (3), the radial bearing group (3) is used for generating buoyancy to the radial of the shaft, the outer wall other side of the connecting sleeve (1) is fixedly connected with the shell two (4), the inside of the shell two (4) is provided with the axial bearing group (5), the axial bearing group (5) is used for generating buoyancy to the axial of the shaft.
2. A dual direction magnetic bearing according to claim 1, wherein: The radial bearing group (3) includes the bearing ring one (301), the inner wall of the bearing ring one (301) is fixedly connected with the shell one (2), the inner wall of the bearing ring one (301) is fixedly connected with the radial magnetic ring (302), the radial magnetic ring (302) is provided with multiple groups.
3. A dual direction magnetic bearing according to claim 2, wherein: The inside of multiple groups the radial magnetic ring (302) is fixedly connected with the wire one (303), the wire one (303) is provided with multiple, the outer wall of the wire one (303) is fixedly connected with the total line one (304).
4. A dual direction magnetic bearing according to claim 3, wherein: The inside of the total line one (304) is fixedly connected with the wire one (305), the wire one (305) is fixedly connected in the inside of the shell one (2).
5. A dual direction magnetic bearing according to claim 1, wherein: The axial bearing group (5) includes the bearing ring two (501), the inner wall of the bearing ring two (501) is fixedly connected with the shell two (4), the inner wall of the bearing ring two (501) is fixedly connected with the axial magnetic ring (502), the axial magnetic ring (502) is provided with multiple groups, the inside of multiple groups the axial magnetic ring (502) is fixedly connected with the wire two (503).
6. A dual direction magnetic bearing according to claim 5, wherein: The outer wall of the wire two (503) is fixedly connected with the total line two (504), the outer wall of the total line two (504) is fixedly connected with the wire two (505), the wire two (505) is fixedly connected in the inside of the shell two (4).