CN218703979U - Full ball bearing momentum wheel - Google Patents
Full ball bearing momentum wheel Download PDFInfo
- Publication number
- CN218703979U CN218703979U CN202222456871.7U CN202222456871U CN218703979U CN 218703979 U CN218703979 U CN 218703979U CN 202222456871 U CN202222456871 U CN 202222456871U CN 218703979 U CN218703979 U CN 218703979U
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- Prior art keywords
- bearing
- full ball
- momentum wheel
- ball bearing
- flywheel body
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- 238000005096 rolling process Methods 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 5
- 230000002028 premature Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 125000006850 spacer group Chemical group 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010892 electric spark Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Motor Or Generator Frames (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to the field of aerospace equipment, in particular to a full ball bearing momentum wheel, which comprises a wheel body part and a control circuit part, wherein the wheel body part comprises a shell, a support shaft, a brushless motor, a flywheel body and a bearing unit; the bearing unit comprises a full ball bearing and a bearing sleeve. The utility model discloses in, adopt the full ball bearing of no holder, avoid appearing collision, the friction and the various contact of holder/guide ring of holder/rolling element and adhere phenomenons such as veneer, improved the stability of bearing, and then improved the control accuracy of momentum wheel. Meanwhile, the premature failure or invalidation of the bearing is avoided, and the service life of the momentum wheel is prolonged.
Description
Technical Field
The utility model relates to an aerospace equipment field, concretely relates to full ball bearing momentum wheel.
Background
The momentum wheel is mainly applied to satellites of various types, and stabilizes or changes the attitude of the satellite by using the gyro axis-fixing property and the reaction moment generated by speed change; as a key single machine of the satellite, the performance of the single machine directly influences the control precision and reliability of the satellite.
The prior art bearing for the momentum wheel is generally an angular contact ball bearing, wherein a retainer is a metal retainer or a non-metal retainer, and the lubrication mode is oil lubrication or grease lubrication. For the bearing for the momentum wheel, the stability of the friction torque is important, and the stability of the bearing directly determines the control precision of the momentum wheel. The stability of the bearing is mainly determined by the dynamic stability of the cage in the bearing. When the bearing works under various complicated working conditions, the transient characteristics of the bearing are very complicated, and various unstable states occur, such as collision of the retainer or the rolling body, friction of the retainer or the guide ring, various contact adhesion and gluing and the like, which all have very bad influence on the operation stability of the rolling body bearing retainer, so that the bearing is in early failure or failure. As long as there is a cage, there will be an instability factor.
SUMMERY OF THE UTILITY MODEL
The utility model provides a full ball bearing momentum wheel to solve the current momentum wheel in the unstable problem of the friction torque of operation in-process bearing, and improved the control accuracy of momentum wheel.
The utility model discloses a full ball bearing momentum wheel adopts following technical scheme: comprises a wheel body part and a control circuit part; the wheel body part comprises a shell, the shell defines a vacuum chamber, and the shell comprises a base and a sealing cover which are fixedly connected; a support shaft is detachably and fixedly arranged in the cavity and is positioned in the center of the shell; the supporting shaft is sleeved with a motor comprising a stator and a rotor; the stator is detachably and fixedly arranged on the base; a flywheel body is rotatably arranged on the supporting shaft, and a bearing unit is arranged between the flywheel body and the supporting shaft; the bearing unit comprises two full ball bearings and a bearing sleeve which are arranged at intervals; the flywheel body is connected with the bearing sleeve through a connecting piece, so that the flywheel body and the bearing sleeve synchronously rotate.
Further, the full ball bearing comprises a bearing inner ring, a bearing outer ring and a bearing rolling body arranged between the bearing inner ring and the bearing outer ring; an inner space ring and an outer space ring are arranged between the two full ball bearings.
Furthermore, the connecting piece is a connecting flange, and the connecting flange, the flywheel body and the rotor are connected through screws.
Further, the bearing sleeve is connected with the connecting flange through screws.
Further, one end of the supporting shaft is connected to the base through a screw; the stator is also connected to the base by screws.
Further, the motor is a brushless motor.
The utility model has the advantages that: the utility model discloses a full ball bearing momentum wheel adopts the full ball bearing of no holder, avoids appearing collision, the friction of holder or guide ring and various contact adhesion phenomenons such as veneer of holder or rolling element, has improved the stability of bearing, and then has improved the control accuracy of momentum wheel. Meanwhile, the premature failure or invalidation of the bearing is avoided, and the service life of the momentum wheel is prolonged.
Furthermore, the full ball bearing momentum wheel is convenient to mount and dismount in the debugging process through screw connection.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of an embodiment of a full ball bearing momentum wheel according to the present invention;
fig. 2 is a schematic structural diagram of a full ball bearing in an embodiment of a full ball bearing momentum wheel of the present invention;
fig. 3 is a schematic structural diagram of a full ball bearing in an embodiment of a full ball bearing momentum wheel of the present invention;
fig. 4 is a schematic structural diagram of a full ball bearing, an inner space ring and an outer space ring in an embodiment of a full ball bearing momentum wheel according to the present invention;
in the figure: 100. a housing; 110. a base; 120. a sealing cover; 130. a chamber; 200. a support shaft; 300. a motor; 310. a rotor; 320. a stator; 400. a flywheel body; 500. a bearing unit; 510. a full ball bearing; 511. a bearing inner race; 512. a bearing outer race; 513. a bearing rolling element; 520. a bearing housing; 530. a connecting flange; 540. an inner spacer ring; 550. an outer space ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.
The drawings in the present disclosure are only for showing the specific structure and the connection relationship thereof, and are only schematic, and do not show the specific size and the proportional relationship between the parts.
In the embodiment of the full ball bearing momentum wheel of the present invention, as shown in fig. 1 to 4, a full ball bearing momentum wheel includes a wheel body portion and a control circuit portion; the wheel body part comprises a shell 100, the shell 100 defines a vacuum chamber 130, the shell 100 comprises a base 110 and a sealing cover 120, and the base 110 and the sealing cover are sealed through welding; a support shaft 200 is arranged in the chamber 130, one end of the support shaft 200 is connected to the base 110 through a screw, and the support shaft 200 is located at the center of the casing 100; the support shaft 200 is sleeved with a motor 300 including a stator 320 and a rotor 310; the motor 300 is a brushless motor, so that electric sparks are not generated when the motor 300 operates, the interference of the electric sparks to the momentum wheel is avoided, the friction force is greatly reduced during operation, the operation is smooth, and the stability of the momentum wheel during operation is improved; the stator 320 is detachably fixed to the base 110 by screws; the support shaft 200 is rotatably provided with a flywheel body 400, and a bearing unit 500 is arranged between the flywheel body 400 and the support shaft 200; the bearing unit 500 includes two full ball bearings 510 and a bearing housing 520 arranged at intervals; the full ball bearing 510 comprises a bearing inner ring 511, a bearing outer ring 512 and a bearing rolling body 513 arranged between the bearing inner ring 511 and the bearing outer ring 512; an inner spacer 540 and an outer spacer 550 are arranged between the two full ball bearings 510, so that a preload is applied to the full ball bearings 510 by adjusting the height difference between the inner spacer 540 and the outer spacer 550; the flywheel body 400 is connected with the bearing sleeve 520 through a connecting flange 530, and the connecting flange 530, the flywheel body 400 and the rotor 310 are connected through screws; the bearing sleeve 520 is connected with the connecting flange 530 through screws.
The utility model discloses a full ball bearing momentum wheel adopts the full ball bearing of no holder, avoids appearing collision, the friction of holder or guide ring and various contact adhesion phenomenons such as veneer of holder or rolling element, has improved the stability of bearing, and then has improved the control accuracy of momentum wheel. Meanwhile, the premature failure or invalidation of the bearing is avoided, and the service life of the momentum wheel is prolonged. Through using the screw connection for a full ball bearing momentum wheel is convenient for install and dismantle at the debugging in-process.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A full ball bearing momentum wheel, comprising a wheel body part and a control circuit part, characterized in that the wheel body part comprises a casing (100), the casing (100) defines a vacuum chamber (130), the casing (100) comprises a base (110) and a sealing cover (120), which are fixedly connected; a supporting shaft (200) is detachably and fixedly arranged in the chamber (130), and the supporting shaft (200) is positioned at the center of the shell (100); the supporting shaft (200) is sleeved with a motor (300) comprising a stator (320) and a rotor (310); the stator (320) is detachably and fixedly arranged on the base (110); a flywheel body (400) is rotatably arranged on the support shaft (200), and a bearing unit (500) is arranged between the flywheel body (400) and the support shaft (200); the bearing unit (500) comprises two full ball bearings (510) and a bearing sleeve (520) which are arranged at intervals; the flywheel body (400) is connected with the bearing sleeve (520) through a connecting piece, so that the flywheel body (400) and the bearing sleeve (520) synchronously rotate.
2. A full ball bearing momentum wheel according to claim 1, wherein: the full ball bearing (510) comprises a bearing inner ring (511), a bearing outer ring (512) and a bearing rolling body (513) arranged between the bearing inner ring and the bearing outer ring; an inner spacing ring (540) and an outer spacing ring (550) are arranged between the two full ball bearings (510).
3. A full ball bearing momentum wheel according to claim 2, wherein: the connecting piece is a connecting flange (530), and the connecting flange (530), the flywheel body (400) and the rotor (310) are connected through screws.
4. A full ball bearing momentum wheel according to claim 3, wherein: the bearing sleeve (520) is connected with the connecting flange (530) through screws.
5. A full ball bearing momentum wheel according to claim 4, wherein: one end of the supporting shaft (200) is connected to the base (110) through a screw; the stator (320) is also connected to the base (110) by screws.
6. A full ball bearing momentum wheel according to any of claims 1 to 5, wherein: the motor (300) is a brushless motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222456871.7U CN218703979U (en) | 2022-09-16 | 2022-09-16 | Full ball bearing momentum wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222456871.7U CN218703979U (en) | 2022-09-16 | 2022-09-16 | Full ball bearing momentum wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218703979U true CN218703979U (en) | 2023-03-24 |
Family
ID=85634856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222456871.7U Active CN218703979U (en) | 2022-09-16 | 2022-09-16 | Full ball bearing momentum wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218703979U (en) |
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2022
- 2022-09-16 CN CN202222456871.7U patent/CN218703979U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A full ball bearing momentum wheel Granted publication date: 20230324 Pledgee: Industrial and Commercial Bank of China Limited Luoyang Pilot Free Trade Zone Branch Pledgor: Luoyang jilinxing Information Technology Co.,Ltd. Registration number: Y2024980006590 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |