Split type magnetic bearing for motor based on high efficiency and energy conservation

Abstract

The invention discloses a split type magnetic bearing for a motor based on high efficiency and energy conservation, and relates to the technical field of motors, the split type magnetic bearing comprises an air cooling outer cover, a first oil cooling pipe, a first water cooling pipe, a second oil cooling pipe and a second water cooling pipe are fixedly mounted on the inner wall of the bottom end of the air cooling outer cover, and magnetic poles are fixedly mounted at the tops of the first water cooling pipe and the second oil cooling pipe; the cooling device has the advantages that cooling water and cooling oil are input into the double-layer communicating inner cover and the double-layer communicating outer cover, so that the first inner cooling box and the second inner cooling box which are correspondingly communicated with the double-layer communicating inner cover and the double-layer communicating outer cover can be located on the two sides of the magnetic poles for water cooling or oil cooling heat dissipation; and the first inner cooling box and the second inner cooling box in the next group can carry out oil cooling or water cooling heat dissipation on the two sides of the magnetic pole, so that water cooling and oil cooling on the two sides of the magnetic pole can be staggered, heat dissipation is carried out on the water cooling part and the oil cooling part through the effect of the air cooling outer cover, and the continuity and stability of heat dissipation of the magnetic bearing are kept.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and specifically to a split magnetic bearing for motors based on high efficiency and energy saving. Background Art

[0002] A magnetic bearing is a new type of high-performance bearing. Compared with traditional ball bearings, sliding bearings, and oil film bearings, magnetic bearings have no mechanical contact. The rotor can reach a very high operating speed, and has the advantages of small mechanical wear, low energy consumption, low noise, long life, no need for lubrication, and no oil pollution. It is particularly suitable for special environments such as high speed, vacuum, and ultra-clean.

[0003] The applicant found through retrieval that the Chinese patent discloses "Magnetic Bearing Device and Its Encapsulated Radial Magnetic Bearing Ventilation and Heat Dissipation Structure", and its publication number is "CN117685297A". This patent mainly uses heat-conducting potting glue and a ventilation structure to connect the motor chamber and the impeller chamber for air-cooled heat dissipation. Since the air-cooled heat dissipation is affected by the change of the ambient temperature, adding substances such as freon will increase the overall heat dissipation cost and energy consumption. Traditional magnetic bearings cannot combine water cooling, air cooling, and oil cooling to synchronously dissipate heat from the magnetic bearing. Therefore, we propose a split magnetic bearing for motors based on high efficiency and energy saving. Summary of the Invention

[0004] The purpose of the present invention is to provide a split magnetic bearing for motors based on high efficiency and energy saving.

[0005] To achieve the above object, the present invention provides the following technical solution: A split magnetic bearing for a motor based on high efficiency and energy saving, including an air-cooled outer cover. The inner wall of the bottom end of the air-cooled outer cover is respectively fixedly installed with a first oil-cooling pipe, a first water-cooling pipe, a second oil-cooling pipe and a second water-cooling pipe. The top of the first water-cooling pipe and the second oil-cooling pipe is fixedly installed with a magnetic pole. A coil is sleeved outside the magnetic pole. On both sides outside the magnetic pole, a plurality of first inner cooling boxes and second inner cooling boxes are respectively fixedly installed. The outer sides of the first inner cooling box and the second inner cooling box are respectively fixedly installed with a first outer cooling box and a second outer cooling box. The inner side walls of the first inner cooling box and the second inner cooling box are respectively communicated with a first conversion pipe and a second conversion pipe. The outer sides of the first conversion pipe and the second conversion pipe are respectively slidably connected with the inner side walls of the first outer cooling box and the second outer cooling box. The inner side walls of the air-cooled outer cover are respectively fixedly installed with a plurality of double-layer connected inner covers and double-layer connected outer covers. The two ends of the plurality of double-layer connected inner covers and double-layer connected outer covers are respectively communicated with the two sides of the first inner cooling box, the second inner cooling box, the first outer cooling box and the second outer cooling box. One side of two of the double-layer connected inner covers and double-layer connected outer covers is respectively communicated with a first connecting cover, a second connecting cover, a third connecting cover and a fourth connecting cover. The bottom ends of the first connecting cover, the second connecting cover, the third connecting cover and the fourth connecting cover are respectively communicated with the top ends of both ends of the first oil-cooling pipe, the first water-cooling pipe, the second oil-cooling pipe and the second water-cooling pipe.

[0006] As a further solution of the present invention: Guide plates are fixedly installed on the inner side walls of the first inner cooling box and the second inner cooling box. Baffles are fixedly installed on the outer sides of the first conversion pipe and the second conversion pipe. The outer sides of the baffles are slidably connected with the inner side walls of the guide plates. The inner side walls of the first conversion pipe and the second conversion pipe are slidably connected with the outer sides of the guide plates.

[0007] As a further solution of the present invention: Partition plates are fixedly installed on the inner side walls of the first outer cooling box and the second outer cooling box. The outer sides of the partition plates are respectively slidably connected with the outer sides of the first conversion pipe and the second conversion pipe.

[0008] As a further solution of the present invention: Springs are fixedly installed on both sides of the first conversion pipe and the second conversion pipe. The other ends of the springs are respectively fixedly connected with the inner side walls of the first inner cooling box, the inner side wall of the second inner cooling box and the outer sides of the partition plates.

[0009] As a further solution of the present invention: A telescopic cover is sleeved outside one of the springs. The two ends of the telescopic cover are respectively fixedly connected with the inner side walls of the first inner cooling box, the inner side wall of the second inner cooling box, the outer sides of the first conversion pipe and the second conversion pipe.

[0010] As a further solution of the present invention: both ends of the inner wall of the first oil cooling pipe are communicated with an oil cooling delivery pipe, the outer side of the oil cooling delivery pipe is inserted and connected with the inner side wall of the first water cooling pipe, and the other end of the oil cooling delivery pipe is communicated with one end of the second water cooling pipe.

[0011] As a further solution of the present invention: both ends of the inner wall of the second water cooling pipe are communicated with a water cooling delivery pipe, and the outer sides of the water cooling delivery pipes are respectively fixedly connected with the inner side walls of the second oil cooling pipe, the first water cooling pipe, the first oil cooling pipe and the air cooling outer cover.

[0012] As a further solution of the present invention: radial flanges are fixedly installed on the outer sides of both ends of the air cooling outer cover, and the inner side walls of the radial flanges are respectively inserted and connected with an air duct, a water pipe and an oil pipe. The other end of the air duct is communicated with both ends of the air cooling outer cover, the other end of the water pipe is communicated with one end of the water cooling delivery pipe, the outer side of the oil pipe is inserted and connected with both ends of the air cooling outer cover, and the other end of the oil pipe is communicated with the first oil cooling pipe.

[0013] Adopting the above technical solutions, compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. By inputting cooling water and cooling oil into the double-layer connected inner cover and the double-layer connected outer cover of the present invention, the corresponding first inner cooling box and second inner cooling box can be cooled by water or oil on both sides of the magnetic pole. The first inner cooling box and the second inner cooling box of the next group can be cooled by oil or water on both sides of the magnetic pole, so that the water cooling and oil cooling on both sides of the magnetic pole can be staggered. The air cooling outer cover is also used to dissipate heat from the water cooling and oil cooling parts, maintaining the continuity and stability of the magnetic bearing heat dissipation;

[0015] 2. By the sliding of the first conversion pipe and the second conversion pipe inside the first inner cooling box and the second outer cooling box of the present invention, when the oil cooling or water cooling is damaged and cannot operate, the corresponding flowable liquid can enter the first conversion pipe and the second conversion pipe, and make it close to the magnetic pole to reduce the distance from the magnetic pole, playing a role in dissipating heat from the magnetic pole and reducing the impact on the magnetic pole heat dissipation caused by the damage of the heat dissipation equipment;

[0016] 3. The first oil cooling pipe and the second oil cooling pipe of the present invention can play a role in oil cooling and dissipating heat from the local position at the bottom of the magnetic pole, and the first water cooling pipe and the second water cooling pipe can play a role in water cooling and dissipating heat from the remaining position of the magnetic pole. Thus, the water cooling and oil cooling are combined to dissipate heat from the magnetic pole, improving the heat dissipation effect of the magnetic bearing after power-on, and reducing the excessive energy consumption and damage of the magnetic bearing caused by too high temperature.

[0017] Other advantages, objects, and features of the present invention will be set forth in part in the following description, and in part will be obvious to those skilled in the art from a study of the following, or may be learned from practice of the present invention. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the whole in an embodiment of the present invention;

[0019] Figure 2 It is a schematic diagram of the air-cooled outer cover in an embodiment of the present invention;

[0020] Figure 3 It is a schematic diagram of the magnetic pole in an embodiment of the present invention;

[0021] Figure 4 It is a schematic diagram of the first oil-cooling pipe in an embodiment of the present invention;

[0022] Figure 5 It is a schematic diagram of the double-layer connected inner cover in an embodiment of the present invention;

[0023] Figure 6 It is a schematic diagram of the inside of the first water-cooling pipe in an embodiment of the present invention;

[0024] Figure 7 It is a schematic diagram of the inside of the first inner cooling box in an embodiment of the present invention;

[0025] Figure 8 It is a schematic diagram of the inside of the second inner cooling box in an embodiment of the present invention;

[0026] Figure 9 It is a schematic diagram of the inside of the first conversion pipe in an embodiment of the present invention;

[0027] Figure 10 It is a schematic diagram of the partition board in an embodiment of the present invention.

[0028] In the figure: 1. Air-cooled outer cover; 2. First oil-cooling pipe; 21. Second oil-cooling pipe; 22. First connecting cover; 23. Third connecting cover; 24. Oil-cooling delivery pipe; 25. Oil pipe; 3. First water-cooling pipe; 31. Second water-cooling pipe; 32. Second connecting cover; 33. Fourth connecting cover; 34. Water-cooling delivery pipe; 35. Water pipe; 4. Magnetic pole; 41. Coil; 5. First inner cooling box; 51. Second inner cooling box; 52. First conversion pipe; 53. Second conversion pipe; 6. First outer cooling box; 61. Second outer cooling box; 7. Double-layer connected inner cover; 71. Double-layer connected outer cover; 8. Guide plate; 81. Baffle plate; 9. Partition board; 10. Spring; 101. Telescopic cover; 11. Radial flange; 12. Air duct. Detailed Embodiments

[0029] The following further describes the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted here that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation on the present invention.

[0030] In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0031] Please refer to the attached Figure 1 - attached Figure 10 For the present invention, a split magnetic bearing for a motor based on high efficiency and energy saving.

[0032] Embodiment 1 includes an air-cooled outer cover 1. The inner walls of the bottom end of the air-cooled outer cover 1 are respectively fixedly installed with a first oil-cooling pipe 2, a first water-cooling pipe 3, a second oil-cooling pipe 21 and a second water-cooling pipe 31. The top of the first water-cooling pipe 3 and the second oil-cooling pipe 21 is fixedly installed with a magnetic pole 4. A coil 41 is sleeved outside the magnetic pole 4. On both sides outside the magnetic pole 4, a plurality of first inner cooling boxes 5 and second inner cooling boxes 51 are respectively fixedly installed. The outside of the first inner cooling box 5 and the second inner cooling box 51 are respectively fixedly installed with a first outer cooling box 6 and a second outer cooling box 61. The inner side walls of the first inner cooling box 5 and the second inner cooling box 51 are respectively communicated with a first conversion pipe 52 and a second conversion pipe 53. The outside of the first conversion pipe 52 and the second conversion pipe 53 are respectively slidably connected with the inner side walls of the first outer cooling box 6 and the second outer cooling box 61. The inner side walls of the air-cooled outer cover 1 are respectively fixedly installed with a plurality of double-layer connected inner covers 7 and double-layer connected outer covers 71. The two ends of the plurality of double-layer connected inner covers 7 and double-layer connected outer covers 71 are respectively communicated with the two sides of the first inner cooling box 5, the second inner cooling box 51, the first outer cooling box 6 and the second outer cooling box 61. One side of two of the double-layer connected inner covers 7 and double-layer connected outer covers 71 are respectively communicated with a first connecting cover 22, a second connecting cover 32, a third connecting cover 23 and a fourth connecting cover 33. The bottom ends of the first connecting cover 22, the second connecting cover 32, the third connecting cover 23 and the fourth connecting cover 33 are respectively communicated with the top ends of both ends of the first oil-cooling pipe 2, the first water-cooling pipe 3, the second oil-cooling pipe 21 and the second water-cooling pipe 31. The inner walls of both ends of the first oil-cooling pipe 2 are communicated with an oil-cooling delivery pipe 24. The outside of the oil-cooling delivery pipe 24 is inserted and connected with the inner side wall of the first water-cooling pipe 3. The other end of the oil-cooling delivery pipe 24 is communicated with one end of the second water-cooling pipe 31. The inner walls of both ends of the second water-cooling pipe 31 are communicated with a water-cooling delivery pipe 34. The outside of the water-cooling delivery pipe 34 is respectively fixedly connected with the inner side walls of the second oil-cooling pipe 21, the first water-cooling pipe 3, the first oil-cooling pipe 2 and the air-cooled outer cover 1. Radial flanges 11 are fixedly installed on the outer sides of both ends of the air-cooled outer cover 1. The inner side walls of the radial flanges 11 are respectively inserted and connected with an air pipe 12, a water pipe 35 and an oil pipe 25. The other end of the air pipe 12 is communicated with both ends of the air-cooled outer cover 1. The other end of the water pipe 35 is communicated with one end of the water-cooling delivery pipe 34. The outside of the oil pipe 25 is inserted and connected with both ends of the air-cooled outer cover 1. The other end of the oil pipe 25 is communicated with the first oil-cooling pipe 2;

[0033] Specifically, when both the water cooling and oil cooling are in normal operating states, cooling oil is input into the first oil cooling pipe 2 through the oil pipe 25, and then into the second oil cooling pipe 21 through the oil cooling delivery pipe 24. As a result, the cooling oil inside the first oil cooling pipe 2 and the second oil cooling pipe 21 can flow out from the oil pipe 25 at the other end to achieve the effect of convective heat dissipation. Since the first connecting cover 22 and the third connecting cover 23 are respectively connected to the first oil cooling pipe 2 and the second oil cooling pipe 21, the cooling oil will also flow into them. At this time, through the connection between the first connecting cover 22 and the double-layer connecting outer cover 71, and the connection between the third connecting cover 23 and the double-layer connecting inner cover 7, the cooling oil can enter the first inner cooling tank 5 and the second outer cooling tank 61. Then, through the action of the double-layer connecting inner cover 7 and the double-layer connecting outer cover 71, the cooling oil enters the next first outer cooling tank 6 and the second inner cooling tank 51. Similarly, cooling water is input into the water cooling delivery pipe 34 through the water pipe 35, and then transported into the first water cooling pipe 3 and the second water cooling pipe 31. The corresponding second connecting cover 32 and the fourth connecting cover 33 can then transport the cooling water, so that the cooling water and the cooling oil can flow alternately on both sides of the magnetic pole 4, thereby improving the heat dissipation effect on the magnetic pole 4. The air duct 12 ventilates the air-cooling outer cover 1 at the same time, further improving the heat dissipation effect.

[0034] Embodiment 2: Guide plates 8 are fixedly installed on the inner side walls of the first inner cooling tank 5 and the second inner cooling tank 51. Baffles 81 are fixedly installed on the outer sides of the first conversion pipe 52 and the second conversion pipe 53. The outer side of the baffle 81 is slidably connected to the inner side wall of the guide plate 8. The inner side walls of the first conversion pipe 52 and the second conversion pipe 53 are slidably connected to the outer side of the guide plate 8. Partition plates 9 are fixedly installed on the inner side walls of the first outer cooling tank 6 and the second outer cooling tank 61. The outer sides of the partition plates 9 are respectively slidably connected to the outer sides of the first conversion pipe 52 and the second conversion pipe 53. Springs 10 are fixedly installed on both sides of the first conversion pipe 52 and the second conversion pipe 53. The other ends of the springs 10 are respectively fixedly connected to the inner side wall of the first inner cooling tank 5, the inner side wall of the second inner cooling tank 51, and the outer side of the partition plate 9. A telescopic cover 101 is sleeved on the outer side of one of the springs 10. The two ends of the telescopic cover 101 are respectively fixedly connected to the inner side wall of the first inner cooling tank 5, the inner side wall of the second inner cooling tank 51, and the outer sides of the first conversion pipe 52 and the second conversion pipe 53;

[0035] Specifically, when both water cooling and oil cooling are in an operable state, the elastic forces of the springs 10 at both ends of the first conversion pipe 52 and the second conversion pipe 53 and the liquid flow velocity pressure are equal. The liquid inside the first outer cooling tank 6 is isolated by the partition plate 9, so that the liquid flows into the first conversion pipe 52 from one end and flows out from the other end to the other half of the first outer cooling tank 6. The liquid inside the first inner cooling tank 5 also flows. Similarly, the liquid inside the second conversion pipe 53 is in communication with the liquid inside the second outer cooling tank 61 and flows, so that the first conversion pipe 52 is located between the first outer cooling tank 6 and the first inner cooling tank 5, and the second conversion pipe 53 is located between the second inner cooling tank 51 and the second outer cooling tank 61. The first outer cooling tank 6 and the next first inner cooling tank 5 are in a state of equal amount of the same liquid, and the internal liquid is the same, and stable heat dissipation of the magnetic pole 4 is maintained. When one of the water cooling or oil cooling is damaged, the internal liquid stops flowing and will not generate a thrust on the inside of the first conversion pipe 52 or the second conversion pipe 53. At this time, the acting forces at both ends are not equal. When the liquid inside the first inner cooling tank 5 stops flowing, the liquid inside the first outer cooling tank 6 can push the first conversion pipe 52 to insert more into the first inner cooling tank 5 and fit with the inner wall, reducing the distance from the magnetic pole 4, so that the position near the magnetic pole 4 can dissipate heat through the liquid inside the first conversion pipe 52. When the water cooling or oil cooling resumes the flowing state, through the thrust of the liquid inside the first inner cooling tank 5, the liquid can flow through the openings on the first conversion pipe 52 to the position of the guide plate 8. At this time, the baffle 81 can prevent the liquid from flowing out through the gaps on the guide plate 8, affecting the thrust of the liquid on the first conversion pipe 52 and the second conversion pipe 53, and push the first conversion pipe 52 into the first cooling tank to restore the intermediate position state. The same is true for the second conversion pipe 53. Thus, simultaneous heat dissipation of water cooling and oil cooling can be carried out, reducing the impact that the failure of a single water cooling or oil cooling heat dissipation causes the magnetic pole 4 to be unable to dissipate heat.

[0036] Working principle:

[0037] First, when both water cooling and oil cooling can operate normally, the first oil cooling pipe 2 and the second oil cooling pipe 21 are connected through the oil cooling delivery pipe 24, and the cooling oil is delivered into the first communication cover 22 and the third communication cover 23. Then, through the action of the double-layer communication outer cover 71 and the double-layer communication inner cover 7, it is delivered to the corresponding first inner cooling tank 5 and the second outer cooling tank 61, and again through the action of the double-layer communication outer cover 71 and the double-layer communication inner cover 7, the cooling oil is delivered into the next first outer cooling tank 6 and the second inner cooling tank 51. On the contrary, the second communication cover 32 and the fourth communication cover 33 are used to deliver cooling water into the first outer cooling tank 6 and the second inner cooling tank 51 which are staggered from it for water cooling heat dissipation. When one of the water cooling or oil cooling is damaged, the first conversion pipe 52 and the second conversion pipe 53 are respectively affected by the liquid on the operable side, and are operated to approach or move away from the magnetic pole 4, reducing the impact of the non-flowing liquid position on the heat dissipation of the magnetic pole 4. Thus, the entire working process ends.

[0038] The above front, rear, left, right, up, and down are all based on the Figure 1 in the accompanying drawings of the specification.

[0039] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present invention.

[0040] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the described embodiments.

[0041] For those skilled in the art, without departing from the principle and spirit of the present invention, various changes, modifications, substitutions, and variations made to these embodiments still fall within the protection scope of the present invention.

Claims

1. A split magnetic bearing for a motor based on high efficiency and energy saving, comprising an air-cooled outer cover (1), characterized in that: The first oil cooling tube (2), the first water cooling tube (3), the second oil cooling tube (21) and the second water cooling tube (31) are fixedly mounted on the inner wall of the bottom end of the air cooling outer cover (1); a magnetic pole (4) is fixedly mounted on the top of the first water cooling tube (3) and the second oil cooling tube (21); a coil (41) is sleeved on the outer side of the magnetic pole (4); a plurality of first inner cooling boxes (5) and a second inner cooling box (51) are fixedly mounted on both sides of the outer side of the magnetic pole (4); a first outer cooling box (6) and a second outer cooling box (61) are fixedly mounted on the outer side of the first inner cooling box (5) and the second inner cooling box (51); the inner side walls of the first inner cooling box (5) and the second inner cooling box (51) are connected to a first conversion tube (52) and a second conversion tube (53); the outer sides of the first conversion tube (52) and the second conversion tube (53) are connected to the first outer cooling box (6) and the second outer cooling box (61) respectively. The inner wall of the air-cooled outer cover (61) is slidably connected, and the inner wall of the air-cooled outer cover (1) is fixedly installed with a plurality of double-layered interconnected inner covers (7) and double-layered interconnected outer covers (71), and the two ends of the plurality of double-layered interconnected inner covers (7) and double-layered interconnected outer covers (71) are respectively interconnected with the two sides of the first inner cooling box (5), the second inner cooling box (51), the first outer cooling box (6) and the second outer cooling box (61), wherein one side of two of the double-layered interconnected inner covers (7) and the double-layered interconnected outer covers (71) are respectively connected with the first connecting cover (22), the second connecting cover (32), the third connecting cover (23) and the fourth connecting cover (33), and the bottom ends of the first connecting cover (22), the second connecting cover (32), the third connecting cover (23) and the fourth connecting cover (33) are respectively interconnected with the tops of the two ends of the first oil cooling pipe (2), the first water cooling pipe (3), the second oil cooling pipe (21) and the second water cooling pipe (31).

2. According to claim 1, a split magnetic bearing for a motor based on high efficiency and energy saving is characterized in that: The inner walls of the first inner cooling box (5) and the second inner cooling box (51) are both fixedly mounted with guide plates (8); the outer sides of the first conversion tube (52) and the second conversion tube (53) are fixedly mounted with baffles (81); the outer sides of the baffles (81) are slidably connected to the inner side walls of the guide plates (8); and the inner side walls of the first conversion tube (52) and the second conversion tube (53) are slidably connected to the outer sides of the guide plates (8).

3. The split magnetic bearing for a motor based on high efficiency and energy saving according to claim 2 is characterized in that: The inner side walls of the first external cooling box (6) and the second external cooling box (61) are both fixedly mounted with partition plates (9), and the outer sides of the partition plates (9) are respectively slidably connected to the outer sides of the first conversion tube (52) and the second conversion tube (53).

4. The split magnetic bearing for a motor based on high efficiency and energy saving according to claim 3 is characterized in that: Springs (10) are fixedly mounted on both sides of the first conversion tube (52) and the second conversion tube (53), and the other ends of the springs (10) are respectively fixedly connected to the inner wall of the first inner cooling box (5), the inner wall of the second inner cooling box (51) and the outer side of the partition plate (9).

5. The split magnetic bearing for a motor based on high efficiency and energy saving according to claim 4 is characterized in that: A telescopic cover (101) is sleeved on the outer side of one of the springs (10), and two ends of the telescopic cover (101) are respectively fixedly connected to the inner wall of the first inner cooling box (5), the inner wall of the second inner cooling box (51), the outer sides of the first conversion tube (52) and the second conversion tube (53).

6. The split magnetic bearing for a motor based on high efficiency and energy saving according to claim 1 is characterized in that: The inner walls at both ends of the first oil cooling pipe (2) are connected to an oil cooling delivery pipe (24), the outer side of the oil cooling delivery pipe (24) is connected to the inner wall of the first water cooling pipe (3) through an insertion, and the other end of the oil cooling delivery pipe (24) is connected to one end of the second water cooling pipe (31).

7. The split magnetic bearing for a motor based on high efficiency and energy saving according to claim 6 is characterized in that: The inner walls at both ends of the second water-cooling pipe (31) are connected to a water-cooling delivery pipe (34), and the outer sides of the water-cooling delivery pipe (34) are respectively fixedly connected to the second oil-cooling pipe (21), the first water-cooling pipe (3), the first oil-cooling pipe (2) and the inner side wall of the air-cooling outer cover (1).

8. The split magnetic bearing for a motor based on high efficiency and energy saving according to claim 7 is characterized in that: Radial flanges (11) are fixedly mounted on the outer sides of both ends of the air-cooled outer cover (1); an air duct (12), a water pipe (35) and an oil pipe (25) are respectively inserted and connected to the inner side walls of the radial flanges (11); the other end of the air duct (12) is interconnected with the two ends of the air-cooled outer cover (1); the other end of the water pipe (35) is interconnected with one end of the water-cooled delivery pipe (34); the outer side of the oil pipe (25) is inserted and connected with the two ends of the air-cooled outer cover (1); and the other end of the oil pipe (25) is interconnected with the first oil cooling pipe (2).

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