Maintenance-friendly magnetic bearing motor
By designing structures such as limit rings, limit blocks, and knobs, the problem of time-consuming and labor-intensive maintenance of magnetic levitation motors is solved, and the front and rear covers can be quickly disassembled and assembled, improving maintenance efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO YUCHUAN POWER TECH CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-08-04
AI Technical Summary
The existing magnetic levitation motors use bolts to fix the front and rear covers during maintenance, which makes maintenance time-consuming, labor-intensive, and inefficient.
The device employs a structure consisting of a limit ring, a limit block, an elastic element, a knob, a worm gear, a worm wheel, and a lead screw to enable quick disassembly and assembly of the front and rear covers. By rotating the knob, the lifting block is released from its limit lock, allowing the cover to be pulled out. During assembly, the limit block engages with the elastic element for rapid positioning.
It enables quick disassembly and assembly of the front and rear covers of the magnetic levitation motor, improving maintenance efficiency and reducing maintenance time and labor.
Smart Images

Figure CN224596255U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of magnetic levitation motor technology, and in particular to an easy-to-maintain magnetic levitation motor. Background Technology
[0002] A magnetic levitation motor is an electromechanical device that uses electromagnetic force to levitate the rotor without mechanical contact and achieve energy conversion. It is widely used in industries, transportation, energy equipment and other fields.
[0003] For example, patent number CN218006053U discloses a magnetic levitation motor, which includes: a motor body, comprising a housing, a stator, and a rotor, both the stator and rotor being disposed within the housing, the stator being disposed on the circumferential outer side of the rotor, and both ends of the rotor extending from the housing; and two magnetic levitation bearings, each passing through one end of the rotor, which are active magnetic levitation bearings. Thus, by placing two magnetic levitation bearings at each end of the rotor and configuring them as active magnetic levitation bearings, not only can contactless and frictionless interaction between the magnetic levitation bearings and the rotor be achieved, increasing the service life of both the bearings and the rotor, but also the versatility of the magnetic levitation bearings can be improved by actively controlling their magnetic force, enabling them to support the stable operation of the rotor of a high-power magnetic levitation motor.
[0004] However, when maintaining existing magnetic levitation motors, it is necessary to disassemble the front and rear covers of the motor to facilitate the inspection and maintenance of the internal structure. However, most common magnetic levitation motor front and rear covers are fixed with bolts, and disassembly and assembly involve the removal and installation of multiple bolts, resulting in time-consuming, labor-intensive, and inefficient motor maintenance. Utility Model Content
[0005] To overcome the problem that the front and rear covers of magnetic levitation motors are mostly fixed with bolts during maintenance, resulting in time-consuming, labor-intensive, and inefficient maintenance.
[0006] The technical solution of this utility model is as follows: an easy-to-maintain magnetic levitation motor, including a support base, a housing fixedly installed on the upper end of the support base, a front cover on the left side of the housing, a rear cover on the right side of the housing, a limit ring one on the right end of the front cover, a limit ring two on the left end of the rear cover, limit blocks fixedly installed on the sides of both limit ring one and limit ring two, a limit sleeve fixedly installed on the outer side of the housing, an elastic element on the inner side of the limit sleeve, a fixed base at the lower end of the housing, a worm gear on the inner side of the fixed base, a worm wheel on the side of the worm gear, a knob on the outer side of the fixed base, a sliding groove at the upper end of the fixed base, a lead screw on the inner side of the sliding groove, and a lifting block on the outer side of the lead screw.
[0007] Preferably, by setting a first limiting ring, a second limiting ring, a limiting block, and an elastic element, the front cover and the rear cover can be quickly assembled. By setting a knob, a worm gear, a worm wheel, a lead screw, and a lifting block, the front cover and the rear cover can be locked and fixed, thereby facilitating the disassembly and maintenance of the motor.
[0008] Preferably, the limiting ring is fixedly connected to the right end of the front cover, and the limiting ring is slidably sleeved to the outer side of the left end of the housing. The limiting ring is used to limit the position of the front cover.
[0009] Preferably, the second limiting ring is fixedly connected to the left end of the rear cover, and the second limiting ring is slidably sleeved to the outer side of the right end of the housing. The second limiting ring is used to limit the position of the rear cover.
[0010] Preferably, one end of the limiting block is fixedly connected to limiting ring one and limiting ring two, and the other end of the limiting block is inserted into the inner side of the limiting sleeve. The elastic element is a spring steel ball, and the end of the limiting block and the elastic element are engaged with each other.
[0011] Preferably, the fixed seat and the support seat are fixedly connected, and both ends of the worm are rotatably connected to the fixed seat. The knobs are symmetrically arranged front and back and are connected to the front and back ends of the worm for transmission.
[0012] Preferably, the worm gear and the worm mesh with each other, both the upper and lower ends of the worm gear are rotatably connected to the fixed seat, the upper end of the worm gear extends to the inner side of the slide groove and is fixedly connected to the lower end of the lead screw, and the upper end of the lead screw is rotatably connected to the lower end of the housing. When the knob is turned, the knob drives the worm gear to rotate, the worm gear drives the worm wheel to rotate, and the worm wheel drives the lead screw to rotate.
[0013] Preferably, the lifting block and the lead screw are connected by a threaded connection on the outside, the front and rear sides of the lifting block are slidably connected to the inner side of the slide groove, and the left and right ends of the lifting block are respectively engaged with the first limiting ring and the second limiting ring. The lifting block is used to limit the first limiting ring and the second limiting ring. When the lead screw rotates, it drives the lifting block to slide up and down along the inner side of the groove.
[0014] The beneficial effects of this utility model are: 1. This easy-to-maintain magnetic levitation motor controls the lowering of the lifting block by rotating the knob, releasing the limit lock on the lower end of limit ring one and limit ring two. At this time, pulling the front cover and rear cover away from the housing allows the limit block to disengage from the inside of the limit sleeve, enabling quick disassembly of the front cover and rear cover for easy inspection and maintenance. 2. This easy-to-maintain magnetic levitation motor enables rapid assembly and positioning of the front and rear covers by inserting the limit block into the limit sleeve and engaging with the elastic element. At this time, rotating the knob controls the lifting block to rise and engage with the lower ends of limit ring one and limit ring two, thereby locking and fixing the front and rear covers. This is convenient and quick, and improves the assembly efficiency after maintenance. Attached Figure Description
[0015] Figure 1 The diagram shown is a three-dimensional representation of the easy-to-maintain magnetic levitation motor of this invention. Figure 1 ; Figure 2 The diagram shown is a three-dimensional representation of the easy-to-maintain magnetic levitation motor of this invention. Figure 2 ; Figure 3 The diagram shown is a three-dimensional representation of the easy-to-maintain magnetic levitation motor of this invention. Figure 3 ; Figure 4 The diagram shown is a three-dimensional cross-sectional view of the easily maintainable magnetic levitation motor of this utility model. Figure 5 This utility model is shown. Figure 4 Enlarged diagram of point A.
[0016] Explanation of reference numerals in the attached drawings: 1. Support base; 2. Housing; 3. Front cover; 4. Rear cover; 5. Limiting ring one; 6. Limiting ring two; 7. Limiting block; 8. Limiting sleeve; 9. Elastic element; 10. Fixed base; 11. Worm gear; 12. Worm wheel; 13. Knob; 14. Slide groove; 15. Lead screw; 16. Lifting block. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0018] Please see Figures 1-5This utility model provides an embodiment of an easy-to-maintain magnetic levitation motor, including a support base 1, a housing 2 fixedly mounted on the upper end of the support base 1, a front cover 3 on the left side of the housing 2, a rear cover 4 on the right side of the housing 2, a limit ring 5 on the right end of the front cover 3, a limit ring 6 on the left end of the rear cover 4, limit blocks 7 fixedly mounted on the sides of both limit rings 5 and 6, a limit sleeve 8 fixedly mounted on the outer side of the housing 2, an elastic element 9 on the inner side of the limit sleeve 8, a fixing base 10 at the lower end of the housing 2, a worm gear 11 on the inner side of the fixing base 10, a worm wheel 12 on the side of the worm gear 11, and a knob 13 on the outer side of the fixing base 10. The upper end is provided with a sliding groove 14, and a lead screw 15 is provided on the inner side of the sliding groove 14. A lifting block 16 is provided on the outer side of the lead screw 15. By rotating the knob 13, the lifting block 16 is lowered to release the limiting lock on the lower end of the first limiting ring 5 and the second limiting ring 6. At this time, the front cover 3 and the rear cover 4 are pulled away from the housing 2, so that the limiting block 7 is disengaged from the inner side of the limiting sleeve 8, realizing the quick disassembly of the front cover 3 and the rear cover 4. By inserting the limiting block 7 into the limiting sleeve 8 and engaging with the elastic element 9, the front cover 3 and the rear cover 4 are quickly assembled and positioned. At this time, rotating the knob 13 controls the lifting block 16 to rise and engage with the lower end of the first limiting ring 5 and the second limiting ring 6, realizing the locking and fixing of the front cover 3 and the rear cover 4.
[0019] Please see Figures 1-4 In this embodiment, the first limiting ring 5 is fixedly connected to the right end of the front cover 3, and the first limiting ring 5 is slidably sleeved to the outer side of the left end of the housing 2. The first limiting ring 5 is used to limit the front cover 3. The second limiting ring 6 is fixedly connected to the left end of the rear cover 4, and the second limiting ring 6 is slidably sleeved to the outer side of the right end of the housing 2. The second limiting ring 6 is used to limit the rear cover 4. One end of the limiting block 7 is fixedly connected to the first limiting ring 5 and the second limiting ring 6, and the other end of the limiting block 7 is inserted into the inner side of the limiting sleeve 8. The elastic element 9 is a spring steel ball. The end of the limiting block 7 and the elastic element 9 engage with each other. By assembling the front cover 3 and the rear cover 4 on both sides of the housing 2, multiple limiting blocks 7 are inserted into the limiting sleeve 8 and engage with each other with the elastic element 9, thereby realizing the rapid assembly and rapid positioning of the front cover 3 and the rear cover 4.
[0020] Please see Figures 2-5 In this embodiment, the fixed seat 10 and the support seat 1 are fixedly connected. The front and rear ends of the worm 11 are rotatably connected to the fixed seat 10. The knob 13 is symmetrically arranged in front and back and is connected to the front and rear ends of the worm 11. The worm wheel 12 meshes with the worm 11. The upper and lower ends of the worm wheel 12 are rotatably connected to the fixed seat 10. The upper end of the worm wheel 12 extends to the inner side of the slide groove 14 and is fixedly connected to the lower end of the lead screw 15. The upper end of the lead screw 15 is rotatably connected to the lower end of the housing 2. When the knob 13 is turned, the knob 13 drives the worm gear 11 to rotate, the worm gear 11 drives the worm wheel 12 to rotate, the worm wheel 12 drives the lead screw 15 to rotate, the lifting block 16 is threadedly connected to the outer side of the lead screw 15, the front and rear sides of the lifting block 16 are slidably connected to the inner side of the slide groove 14, the left and right ends of the lifting block 16 are respectively engaged with the first limit ring 5 and the second limit ring 6, and the lifting block 16 is used to limit the first limit ring 5 and the second limit ring 6; When the lead screw 15 rotates, it drives the lifting block 16 to slide and rise along the inner side of the slide groove 14. By rotating the knob 13, the worm gear 11 is driven to rotate, which in turn drives the lead screw 15 to rotate. This causes the lifting block 16 to descend along the slide groove 14, releasing the limiting lock on the lower ends of the first limiting ring 5 and the second limiting ring 6. At this time, the front cover 3 and the rear cover 4 are pulled away from the housing 2, causing the limiting block 7 to disengage from the elastic element 9 and come out from the inner side of the limiting sleeve 8. This allows for quick disassembly of the front cover 3 and the rear cover 4, facilitating maintenance. After maintenance is completed, the front cover 3 and the rear cover 4 are quickly assembled and positioned by the cooperation of multiple limiting blocks 7 and the limiting sleeve 8. At this time, rotating the knob 13 controls the lifting block 16 to rise and engage with the lower ends of the first limiting ring 5 and the second limiting ring 6, thus locking and fixing the front cover 3 and the rear cover 4.
[0021] When maintenance of the magnetic levitation motor is required, the worm gear 11 is rotated by turning the knob 13, which in turn causes the worm wheel 12 to rotate the lead screw 15. This causes the lifting block 16 to release the limiting lock on the lower ends of the first limiting ring 5 and the second limiting ring 6. At this time, the front cover 3 and the rear cover 4 are pulled away from the housing 2, so that the limiting block 7 is disengaged from the inside of the limiting sleeve 8, realizing the quick disassembly of the front cover 3 and the rear cover 4, which facilitates maintenance. After the maintenance is completed, the front cover 3 and the rear cover 4 are reset, so that the multiple limiting blocks 7 are inserted into the limiting sleeve 8 and engage with the elastic element 9, realizing the quick assembly and quick positioning of the front cover 3 and the rear cover 4. At this time, turning the knob 13 controls the lifting block 16 to rise and engage with the lower ends of the first limiting ring 5 and the second limiting ring 6, thus locking and fixing the front cover 3 and the rear cover 4.
[0022] Through the above steps, by rotating the knob 13 to control the lowering of the lifting block 16, the limiting lock on the lower end of the first limiting ring 5 and the second limiting ring 6 is released. At this time, the front cover 3 and the rear cover 4 are pulled away from the housing 2, so that the limiting block 7 is dislodged from the inside of the limiting sleeve 8, thereby realizing the quick disassembly of the front cover 3 and the rear cover 4. This solves the problem that when maintaining the magnetic levitation motor, the front cover and the rear cover are mostly fixed with bolts, which leads to time-consuming and labor-intensive maintenance of the motor and low efficiency.
Claims
1. An easy-to-maintain magnetic levitation motor, comprising a support base (1), characterized in that: A housing (2) is fixedly installed on the upper end of the support base (1). A front cover (3) is provided on the left side of the housing (2), and a rear cover (4) is provided on the right side of the housing (2). A limit ring one (5) is provided on the right end of the front cover (3), and a limit ring two (6) is provided on the left end of the rear cover (4). Limiting blocks (7) are fixedly installed on the sides of both the limit ring one (5) and the limit ring two (6). A limit sleeve (8) is fixedly installed on the outer side of the housing (2). An elastic element (9) is provided on the inner side of the housing (2). A fixed seat (10) is provided at the lower end of the housing (2). A worm gear (11) is provided on the inner side of the fixed seat (10). A worm wheel (12) is provided on the side of the worm gear (11). A knob (13) is provided on the outer side of the fixed seat (10). A slide groove (14) is provided at the upper end of the fixed seat (10). A lead screw (15) is provided on the inner side of the slide groove (14). A lifting block (16) is provided on the outer side of the lead screw (15).
2. The easy-to-maintain magnetic levitation motor according to claim 1, characterized in that: The limiting ring 1 (5) is fixedly connected to the right end of the front cover (3), and the limiting ring 1 (5) is slidably sleeved to the outer side of the left end of the housing (2). The limiting ring 1 (5) is used to limit the front cover (3).
3. The easy-to-maintain magnetic levitation motor according to claim 1, characterized in that: The second limiting ring (6) is fixedly connected to the left end of the rear cover (4), and the second limiting ring (6) is slidably sleeved to the outer side of the right end of the housing (2). The second limiting ring (6) is used to limit the rear cover (4).
4. The easy-to-maintain magnetic levitation motor according to claim 1, characterized in that: One end of the limiting block (7) is fixedly connected to the first limiting ring (5) and the second limiting ring (6), and the other end of the limiting block (7) is inserted into the inner side of the limiting sleeve (8). The elastic element (9) is a spring steel ball, and the end of the limiting block (7) and the elastic element (9) engage with each other.
5. The easy-to-maintain magnetic levitation motor according to claim 1, characterized in that: The fixed seat (10) and the support seat (1) are fixedly connected. The front and rear ends of the worm (11) are rotatably connected to the fixed seat (10). The knob (13) is symmetrically arranged in front and back and is connected to the front and rear ends of the worm (11) for transmission.
6. The easy-to-maintain magnetic levitation motor according to claim 1, characterized in that: The worm wheel (12) and the worm (11) mesh with each other. Both the upper and lower ends of the worm wheel (12) are rotatably connected to the fixed seat (10). The upper end of the worm wheel (12) extends to the inner side of the slide groove (14) and is fixedly connected to the lower end of the lead screw (15). The upper end of the lead screw (15) is rotatably connected to the lower end of the housing (2). When the knob (13) is turned, the knob (13) drives the worm (11) to rotate, the worm (11) drives the worm wheel (12) to rotate, and the worm wheel (12) drives the lead screw (15) to rotate.
7. The easy-to-maintain magnetic levitation motor according to claim 1, characterized in that: The lifting block (16) and the lead screw (15) are connected by threads on the outside. The front and rear sides of the lifting block (16) are slidably connected to the inner side of the slide groove (14). The left and right ends of the lifting block (16) are respectively engaged with the first limit ring (5) and the second limit ring (6). The lifting block (16) is used to limit the first limit ring (5) and the second limit ring (6). When the lead screw (15) rotates, the lead screw (15) drives the lifting block (16) to slide and rise along the inner side of the slide groove (14).