CN209818535U - Magnetic suspension motor auxiliary bearing structure - Google Patents
Magnetic suspension motor auxiliary bearing structure Download PDFInfo
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- CN209818535U CN209818535U CN201920278065.0U CN201920278065U CN209818535U CN 209818535 U CN209818535 U CN 209818535U CN 201920278065 U CN201920278065 U CN 201920278065U CN 209818535 U CN209818535 U CN 209818535U
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- magnetic suspension
- suspension motor
- auxiliary bearing
- ring
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Abstract
The utility model provides a magnetic suspension motor auxiliary bearing structure, include bearing inner circle, ball, bearing cage and the protection architecture that distributes in proper order by the outside circle of inner circle, wherein, the bearing inner circle adopts the split type structure that sets up side by side, the bearing inner circle with be provided with two rings side by side between the bearing cage the ball. The utility model provides a magnetic suspension motor auxiliary bearing structure adopts split type inner circle structure, no holder is filled with beads, the supporting force can be increased, and the impact force when the rotor falls can be evenly shared; the damping shock absorption sleeve made of spring steel plays a role in damping when the rotor drops, damping is effectively increased, the speed reduction time when the rotor drops is shortened, the damage probability of a protection bearing is reduced, and the service life of the magnetic suspension motor is prolonged.
Description
Technical Field
The utility model relates to a magnetic suspension motor technical field especially relates to a magnetic suspension motor auxiliary bearing structure.
Background
With the development of science and technology and the demand of production, magnetic suspension high-speed motors have become one of the hot spots of international electrotechnical field research. Because the magnetic suspension high-speed motor has the advantages of high energy density, small structural size, high efficiency and the like, the magnetic suspension high-speed motor is widely applied to the industrial fields of micro gas turbines, high-speed centrifugal compressors, molecular pumps, high-speed processing centers, flywheel energy storage and the like at present, and the application field of the magnetic suspension high-speed motor is still continuously expanded.
The magnetic suspension motor rotates at a high speed in the working process, and if the control fails and falls suddenly in the process, the motor is damaged destructively.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to solving the above-described problems. An object of the utility model is to provide a magnetic suspension motor auxiliary bearing structure of solving above problem. Specifically, the utility model provides a can guarantee the magnetic suspension motor auxiliary bearing structure of high efficiency, the steady operation of motor.
In order to solve the technical problem, the utility model provides a magnetic suspension motor auxiliary bearing structure, magnetic suspension motor auxiliary bearing structure includes bearing inner circle, ball, bearing cage and the protection architecture that distributes in proper order by the outside circle of inner circle, wherein, the bearing inner circle adopts the split type structure that sets up side by side, the bearing inner circle with be provided with two rings side by side between the bearing cage the ball.
The bearing inner ring comprises a first inner ring and a second inner ring which are symmetrical in structure and mutually butted, and a U-shaped groove is formed in the surface of an outer ring of the bearing inner ring.
The middle of the surface of the inner ring of the bearing isolation ring is provided with a bulge, and the two rings of balls are respectively positioned on two sides of the bulge.
Wherein, two circles of balls are all arranged in a full ball way.
The protection structure comprises a damping shock absorption sleeve and a protection outer ring, wherein the damping shock absorption sleeve is sleeved on the outer surface of the bearing isolation ring, and the protection outer ring is sleeved on the outer surface of the damping shock absorption sleeve.
Wherein, damping shock attenuation cover is spring steel material.
Wherein, damping shock attenuation cover is V type loop configuration.
The utility model provides a magnetic suspension motor auxiliary bearing structure adopts split type inner circle structure, no holder is filled with beads, the supporting force can be increased, and the impact force when the rotor falls can be evenly shared; the damping shock absorption sleeve made of spring steel plays a role in damping when the rotor drops, damping is effectively increased, the speed reduction time when the rotor drops is shortened, the damage probability of a protection bearing is reduced, and the service life of the magnetic suspension motor is prolonged.
Other characteristic features and advantages of the invention will become apparent from the following description of exemplary embodiments, which is to be read in connection with the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention. In the drawings, like reference numerals are used to indicate like elements. The drawings in the following description are directed to some, but not all embodiments of the invention. For a person skilled in the art, other figures can be derived from these figures without inventive effort.
Fig. 1 exemplarily shows a structural schematic diagram of the magnetic levitation motor auxiliary bearing structure of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The basic idea of the utility model is that the inventor adopts a split type bearing inner ring structure and adopts the full ball filling without a retainer, thereby increasing the supporting force, evenly sharing the impact force when the rotor falls and reducing the probability of ball damage; the damping shock absorption sleeve is arranged to further buffer and absorb shock caused by the falling of the rotor, so that the bearing is prevented from being damaged by the falling rotor, the service life of the bearing is prolonged, and the service life of the magnetic suspension motor is ensured; meanwhile, the damping shock absorption sleeve can increase friction and damp, effectively shorten the deceleration time when the rotor falls, ensure the operation performance of the magnetic suspension motor, ensure the stable and maintenance-free operation of the motor and prolong the service life of the magnetic suspension motor.
The following describes the auxiliary bearing structure of the magnetic suspension motor according to the present invention in detail with reference to the accompanying drawings.
Fig. 1 shows a schematic structural diagram of a specific embodiment of the magnetic suspension motor auxiliary bearing structure of the present invention, and as shown in fig. 1, the magnetic suspension motor auxiliary bearing structure includes a bearing inner ring 1, a ball 2, a bearing isolation ring 3 and a protection structure 4, which are sequentially distributed from the inner ring to the outer ring. The bearing inner ring 1 is of a split structure arranged side by side, and two rings of balls 2 are arranged between the bearing inner ring 1 and the bearing isolation ring 3 side by side.
In the embodiment shown in fig. 1, the bearing inner ring 1 includes a first inner ring 11 and a second inner ring 12 which are symmetrical in structure and are butted with each other, and a U-shaped groove 10 is provided in the middle of the outer ring surface of the bearing inner ring 1, that is, a U-shaped groove 10 is provided at the joint of the first inner ring 11 and the second inner ring 12. Two circles of balls 2 are distributed in the U-shaped groove 10, and the balls 2 are limited through the U-shaped groove 10.
Further, a bulge 30 is arranged in the middle of the surface of the inner ring of the bearing isolation ring 3, and the two circles of balls 2 are respectively positioned on two sides of the bulge 30. The U-shaped groove 10 is matched with the protrusion 30, the two circles of balls 2 are divided and limited, the balls are enabled to be stressed dispersedly and uniformly, and the performance and the operation smoothness of the bearing structure are guaranteed.
Specifically, the two circles of balls 2 are all arranged in a full ball manner, have no retainer structure and are limited only by the U-shaped grooves 10 and the protrusions 30.
In the embodiment shown in fig. 1, the protection structure 4 comprises a damping shock-absorbing sleeve 41 and a protection outer ring 42, wherein the damping shock-absorbing sleeve 41 is sleeved on the outer surface of the bearing isolation ring 3 to buffer and absorb shock caused by the falling of the rotor; the protective outer ring 42 is sleeved on the outer surface of the damping shock-absorbing sleeve 41 to protect the whole auxiliary bearing structure and also protect the damping shock-absorbing sleeve 41.
In order to ensure the damping performance and ensure the strength, wear resistance and service life of the protection structure 4, the damping shock-absorbing sleeve 41 can be made of spring steel and is formed by stamping. For example, the damping sleeve 41 may be a V-shaped ring structure, or may be stamped into another ring structure with a damping effect to ensure the stability of the auxiliary bearing structure.
The above-described embodiments can be implemented individually or in various combinations, and such variations are within the scope of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of additional like elements in the article or device comprising the element.
The above embodiments are merely for illustrating the technical solutions of the present invention and are not to be construed as limiting, and the present invention is described in detail with reference to the preferred embodiments. It should be understood by those skilled in the art that various modifications and equivalent substitutions may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and all the modifications and equivalents should be covered by the scope of the claims of the present invention.
Claims (7)
1. The utility model provides a magnetic suspension motor auxiliary bearing structure, its characterized in that, magnetic suspension motor auxiliary bearing structure includes bearing inner race (1), ball (2), bearing cage (3) and protection architecture (4) that distribute gradually by the outside circle of inner race, wherein, bearing inner race (1) adopts the split type structure that sets up side by side, bearing inner race (1) with be provided with two rings side by side between bearing cage (3) ball (2).
2. The auxiliary bearing structure of a magnetic suspension motor in accordance with claim 1, characterized in that the bearing inner ring (1) comprises a first inner ring (11) and a second inner ring (12) which are symmetrical in structure and butt jointed with each other, and the outer ring surface of the bearing inner ring (1) is provided with a U-shaped groove (10).
3. The auxiliary bearing structure of the magnetic suspension motor in claim 1, characterized in that the middle of the inner ring surface of the bearing isolation ring (3) is provided with a bulge (30), and two circles of the balls (2) are respectively positioned at two sides of the bulge (30).
4. The auxiliary bearing arrangement for a magnetic levitation motor as claimed in claim 1, characterised in that both rings of balls (2) are arranged as full balls.
5. The auxiliary bearing structure of magnetic suspension motor in claim 1, wherein the protection structure (4) comprises a damping shock-absorbing sleeve (41) and a protection outer ring (42), wherein the damping shock-absorbing sleeve (41) is sleeved on the outer surface of the bearing isolation ring (3), and the protection outer ring (42) is sleeved on the outer surface of the damping shock-absorbing sleeve (41).
6. The auxiliary bearing structure of magnetic suspension motor according to claim 5, characterized in that the damping sleeve (41) is made of spring steel.
7. The auxiliary bearing structure of magnetic suspension motor according to claim 5, characterized in that the damping shock-absorbing sleeve (41) is a V-shaped ring structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920278065.0U CN209818535U (en) | 2019-03-05 | 2019-03-05 | Magnetic suspension motor auxiliary bearing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920278065.0U CN209818535U (en) | 2019-03-05 | 2019-03-05 | Magnetic suspension motor auxiliary bearing structure |
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| Publication Number | Publication Date |
|---|---|
| CN209818535U true CN209818535U (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920278065.0U Active CN209818535U (en) | 2019-03-05 | 2019-03-05 | Magnetic suspension motor auxiliary bearing structure |
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| CN (1) | CN209818535U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114060407A (en) * | 2021-11-29 | 2022-02-18 | 中国航发哈尔滨轴承有限公司 | Cylindrical roller bearing with vibration reduction structure |
-
2019
- 2019-03-05 CN CN201920278065.0U patent/CN209818535U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114060407A (en) * | 2021-11-29 | 2022-02-18 | 中国航发哈尔滨轴承有限公司 | Cylindrical roller bearing with vibration reduction structure |
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Denomination of utility model: A magnetic levitation motor auxiliary bearing structure Effective date of registration: 20231011 Granted publication date: 20191220 Pledgee: Societe Generale Bank Limited by Share Ltd. Weifang branch Pledgor: SHANDONG TIANRUI HEAVY INDUSTRY Co.,Ltd. Registration number: Y2023370000114 |