CN114649892B - Motor with bearing disassembly assisting device - Google Patents
Motor with bearing disassembly assisting device Download PDFInfo
- Publication number
- CN114649892B CN114649892B CN202210559780.8A CN202210559780A CN114649892B CN 114649892 B CN114649892 B CN 114649892B CN 202210559780 A CN202210559780 A CN 202210559780A CN 114649892 B CN114649892 B CN 114649892B
- Authority
- CN
- China
- Prior art keywords
- detacher
- end cover
- bearing
- bracket
- rotor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/15—Mounting arrangements for bearing-shields or end plates
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
- Motor Or Generator Frames (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The invention discloses a motor with a bearing dismounting auxiliary device, and relates to the field of motor bearing dismounting. The device structure does: the upper end cover and the lower end cover are respectively positioned at the upper side and the lower side of the stator and the rotor, the upper end cover and the central rotating shaft of the rotor are assembled into a whole through an upper bearing, and the lower end cover and the central rotating shaft of the rotor are assembled into a whole through a lower bearing; the inner side bearing bayonet parts of the upper end cover and the lower end cover are fixedly connected with the same detacher bracket, the detacher bracket is in a cylindrical barrel shape, the inner diameter of the detacher bracket is matched with the size of an outer bearing seat of the upper bearing or the lower bearing, a through hole matched with the diameter of the central rotating shaft is formed in an end plate of the detacher bracket, and the gap is ensured to be smaller than the air gap; the periphery of the detacher bracket is fixedly connected with a plurality of detacher connecting plates which are uniformly distributed, a central rotating shaft of the rotor is provided with an annular groove, and a retaining ring for a shaft is arranged in the annular groove. The invention has simple structure, is not used or appeared in other similar occasions, and the realized function greatly meets the actual requirement.
Description
Technical Field
The invention relates to the field of motor bearing disassembly, in particular to a motor with a bearing disassembly auxiliary device.
Background
Among the prior art, original bearing is dismantled and need be hung the motor from the station, still need adopt special frock to dismantle after the whole casing that breaks away from of rotor, and the time and labor are wasted, but also can make the end cover receive the damage easily because the bearing bayonet socket department of end cover about the gravity runs into. In order to prevent the bearing bayonet of the end cover from being damaged when the motor bearing is disassembled, the integral assembling or disassembling structure of the motor bearing needs to be improved or redesigned.
Disclosure of Invention
The invention provides a motor with a bearing dismounting auxiliary device, which aims to solve the problems that the process is complex and an end cover is easy to damage when a motor bearing is dismounted.
The invention is realized by the following technical scheme: a motor with a bearing dismounting auxiliary device comprises an upper end cover and a lower end cover, wherein the upper end cover and the lower end cover are respectively positioned on the upper side and the lower side of a stator and a rotor; the inner side bearing bayonet parts of the upper end cover and the lower end cover are fixedly connected with the same detacher bracket, the detacher bracket is in a cylindrical barrel shape, the inner diameter of the detacher bracket is matched with the size of an outer bearing seat of the upper bearing or the lower bearing, a through hole matched with the diameter of the central rotating shaft is formed in an end plate of the detacher bracket, and the gap is ensured to be smaller than the air gap; the periphery of the detacher bracket is fixedly connected with a plurality of uniformly distributed detacher connecting plates, and the detacher connecting plates are attached to the detacher bracket in shape; the rotor is characterized in that the central rotating shaft of the rotor is also provided with an annular groove, a shaft check ring is installed in the annular groove, and the distance between the shaft check ring and the end plate of the detacher bracket is 0-2 mm.
The invention designs a motor with a bearing disassembly auxiliary device, which is mainly designed for preventing the surfaces of a rotor and a stator from being damaged when a motor bearing is disassembled. The device mainly comprises an upper end cover and a lower end cover, wherein the basic structure of the motor is that the upper end cover and the lower end cover are respectively positioned at the upper side and the lower side of a stator and a rotor, the upper end cover and a central rotating shaft of the rotor are assembled into a whole through an upper bearing, and the lower end cover and the central rotating shaft of the rotor are assembled into a whole through a lower bearing; the invention is an improvement on the bodies of an upper end cover and a lower end cover, the structures of the upper end cover and the lower end cover are similar, the inner side bearing bayonet parts of the upper end cover and the lower end cover are fixedly connected with the same detacher bracket for supporting a rotor when a bearing is detached, the detacher bracket is in a cylindrical barrel shape, and the inner diameter of the detacher bracket is matched with the size of an outer bearing seat of the upper bearing or the lower bearing, namely matched with the sizes of the corresponding bearings; open on the end plate of detacher support have with central pivot diameter matched with through-hole, central pivot passes the through-hole, must guarantee moreover that the clearance is less than the air gap size, and this structure makes when dismantling the bearing, still has the clearance between stator and the rotor, prevents that stator and rotor surface from appearing the damage, can also realize deciding the air gap assurance between the rotor. The periphery of the detacher support is fixedly connected with a plurality of uniformly distributed detacher connecting plates, the detacher connecting plates are attached to the detacher support in a shape, the detacher connecting plates are used for guaranteeing the distance between the upper end cover or the lower end cover and the detacher support, the upper end cover or the lower end cover and the detacher support form a whole, and the force applied to the detacher support when the bearing is detached is guaranteed to be transferred to the upper end cover or the lower end cover through the detacher connecting plates. The central rotating shaft of the rotor is also provided with an annular groove, a check ring for the shaft is installed in the annular groove and used for axially positioning the rotor, and meanwhile, the axial movement of the rotor is prevented when the bearing is disassembled, and the allowable axial movement of the shaft is generally controlled within 2mm according to empirical data, so that the distance between the check ring for the shaft and the end plate of the support of the detacher is 0-2 mm. The invention has the following specific operations: when the bearing of the motor needs to be disassembled, the bearing seat of the upper bearing or the lower bearing is integrally disassembled, and a gap between a through hole formed in an end plate of the detacher bracket and a central rotating shaft of the rotor is utilized, so that the gap between the stator and the rotor is ensured, the rotor and the surface of the stator are prevented from colliding, the rotor and the stator are prevented from being damaged, and the air gap between the stator and the rotor is ensured when the bearing is disassembled; and meanwhile, the axial positioning of the rotor is carried out by utilizing the shaft retainer ring on the central rotating shaft, and the axial movement of the rotor when the bearing is disassembled is also prevented.
Preferably, 4-6 connecting plates are arranged on the detacher.
Preferably, the upper end cover and the lower end cover are fixedly connected with the detacher bracket in a welding mode.
Preferably, the detacher connecting plate is welded to the periphery of the detacher bracket.
Compared with the prior art, the invention has the following beneficial effects: according to the motor with the bearing disassembly auxiliary device, the bearing seat can be integrally disassembled when the bearing is disassembled, and the end plate and the detacher bracket similar to the type of the water bucket with the opening at the bottom are utilized to ensure that a gap is formed between the end plate and the shaft, so that the gap still exists between the stator and the rotor, and the collision damage of the rotor and the surface of the stator is prevented; meanwhile, the air gap between the stator and the rotor can be ensured when the bearing is disassembled; the retainer ring for the shaft arranged on the shaft is used for axially positioning the rotor, so that the axial movement of the rotor is prevented when the bearing is disassembled; although the structure is simple, the functions realized by the device are greatly satisfied with the practical requirements without appearing or using in other similar occasions.
Drawings
Fig. 1 is a schematic structural view of an upper end cap or a lower end cap of the present invention.
Fig. 2 is a structural front view of the upper or lower end cap of the present invention.
Fig. 3 is a cross-sectional view a-a of fig. 2.
Fig. 4 is a cross-sectional view of B-B in fig. 2.
Fig. 5 is a schematic view of an assembly structure of the present invention.
The figures are labeled as follows: 1-stator, 2-rotor, 3-lower bearing, 4-upper bearing, 5-upper end cover, 6-lower end cover, 7-detacher bracket, 8-detacher connecting plate and 9-shaft retainer ring.
Detailed Description
The present invention is further illustrated by the following specific examples.
A motor with a bearing dismounting auxiliary device is disclosed, as shown in figures 1-5: the stator comprises an upper end cover 5 and a lower end cover 6, wherein the upper end cover 5 and the lower end cover 6 are respectively positioned at the upper side and the lower side of a stator 1 and a rotor 2, the upper end cover 5 and a central rotating shaft of the rotor 2 are assembled into a whole through an upper bearing 4, and the lower end cover 6 and the central rotating shaft of the rotor 2 are assembled into a whole through a lower bearing 3; the inner side bearing clamping openings of the upper end cover 5 and the lower end cover 6 are fixedly connected with the same detacher bracket 7, the detacher bracket 7 is cylindrical and barrel-shaped, the inner diameter of the detacher bracket 7 is matched with the size of an outer bearing seat of the upper bearing 4 or the lower bearing 3, a through hole matched with the diameter of the central rotating shaft is formed in an end plate of the detacher bracket 7, and the gap is ensured to be smaller than the air gap; the periphery of the detacher bracket 7 is fixedly connected with a plurality of uniformly distributed detacher connecting plates 8, and the shape of the detacher connecting plates 8 is fit with that of the detacher bracket 7; the central rotating shaft of the rotor 2 is also provided with an annular groove, a shaft check ring 9 is installed in the annular groove, and the distance between the shaft check ring 9 and the end plate of the detacher bracket 7 is 0-2 mm.
The embodiment adopts the following technical scheme: 4-6 connecting plates of the detacher are provided, and 4 connecting plates are provided in the embodiment; the upper end cover 5 and the lower end cover 6 are fixedly connected with the detacher bracket 7 in a welding mode; the detacher connecting plate 8 is welded to the periphery of the detacher bracket 7.
The embodiment specifically operates as follows: when the bearing of the motor needs to be disassembled, the bearing seat of the upper bearing 4 or the lower bearing 3 is integrally disassembled, a gap between a through hole formed in an end plate of the detacher bracket 7 and a central rotating shaft of the rotor 2 is utilized, the gap between the stator and the rotor is ensured, the collision between the rotor 2 and the surface of the stator 1 is prevented, the damage of the rotor and the stator is avoided, the air gap between the stator and the rotor during the bearing disassembly is ensured, the upper end cover 5 or the lower end cover 6 and the detacher bracket 7 are integrally formed by a welding structure, and the force borne by the detacher bracket 7 during the bearing disassembly is transferred to the upper end cover 5 or the lower end cover 6 through the detacher connecting plate 8; and meanwhile, the axial positioning of the rotor is carried out by utilizing the shaft retainer ring 9 on the central rotating shaft, and the axial movement of the rotor when the bearing is disassembled is also prevented.
The scope of the invention is not limited to the above embodiments, and various modifications and changes may be made by those skilled in the art, and any modifications, improvements and equivalents within the spirit and principle of the invention should be included in the scope of the invention.
Claims (2)
1. The utility model provides a motor with auxiliary device is dismantled to bearing which characterized in that: the stator comprises an upper end cover (5) and a lower end cover (6), wherein the upper end cover (5) and the lower end cover (6) are respectively positioned at the upper side and the lower side of a stator (1) and a rotor (2), the upper end cover (5) and a central rotating shaft of the rotor (2) are assembled into a whole through an upper bearing (4), and the lower end cover (6) and the central rotating shaft of the rotor (2) are assembled into a whole through a lower bearing (3); the inner side bearing bayonet parts of the upper end cover (5) and the lower end cover (6) are fixedly connected with the same detacher bracket (7), the detacher bracket (7) is cylindrical and has an inner diameter matched with the size of an outer bearing seat of the upper bearing (4) or the lower bearing (3), an end plate of the detacher bracket (7) is provided with a through hole matched with the diameter of the central rotating shaft, a gap is formed between the through hole formed in the end plate of the detacher bracket (7) and the central rotating shaft of the rotor, and the gap is ensured to be smaller than the size of an air gap; the periphery of the detacher bracket (7) is fixedly connected with a plurality of uniformly distributed detacher connecting plates (8), and the shape of the detacher connecting plates (8) is fit with that of the detacher bracket (7); an annular groove is further formed in a central rotating shaft of the rotor (2), a shaft check ring (9) is mounted in the annular groove, and the distance between the shaft check ring (9) and an end plate of the detacher bracket (7) is 0-2 mm; the upper end cover (5) and the lower end cover (6) are fixedly connected with the detacher bracket (7) in a welding mode; the detacher connecting plate (8) is welded on the periphery of the detacher bracket (7).
2. A motor having a bearing disassembly assistance apparatus as claimed in claim 1, wherein: the number of the detacher connecting plates (8) is 4-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210559780.8A CN114649892B (en) | 2022-05-23 | 2022-05-23 | Motor with bearing disassembly assisting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210559780.8A CN114649892B (en) | 2022-05-23 | 2022-05-23 | Motor with bearing disassembly assisting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114649892A CN114649892A (en) | 2022-06-21 |
| CN114649892B true CN114649892B (en) | 2022-08-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210559780.8A Active CN114649892B (en) | 2022-05-23 | 2022-05-23 | Motor with bearing disassembly assisting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN114649892B (en) |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05336717A (en) * | 1992-05-29 | 1993-12-17 | Nagano Nippon Densan Kk | Spindle motor |
| WO2012046314A1 (en) * | 2010-10-06 | 2012-04-12 | 三菱電機株式会社 | Rotary electrical device, bearing attachment and detachment tool, and bearing replacement method |
| CN102468733B (en) * | 2010-11-15 | 2016-06-08 | 德昌电机(深圳)有限公司 | Brushless electric machine |
| CN203645490U (en) * | 2013-12-06 | 2014-06-11 | 昆山森力玛电机有限公司 | Assembling tool of large power permanent magnet surface mounting type synchronization motor rotor |
| CN106100264B (en) * | 2016-08-22 | 2018-06-15 | 山西北方机械控股有限公司 | A kind of middle high-power permanent magnet motor presetting system bearing disassembling device |
| CN206807182U (en) * | 2017-05-23 | 2017-12-26 | 温州市飞扬电气有限公司 | A kind of motor |
| CN107591977B (en) * | 2017-10-30 | 2023-09-22 | 南京磁谷科技有限公司 | Rotor mounting tool for permanent magnet motor |
| CN209748320U (en) * | 2019-04-20 | 2019-12-06 | 沈阳蓝光驱动技术有限公司 | But car motor of quick replacement bearing |
| CN110784055A (en) * | 2019-11-14 | 2020-02-11 | 中车株洲电机有限公司 | Traction motor and rotor bearing disassembly and assembly structure without disassembly thereof |
| CN111711306B (en) * | 2020-08-24 | 2020-11-10 | 江苏嘉轩智能工业科技股份有限公司 | Explosion-proof structure of drum motor |
| CN112713694B (en) * | 2020-12-25 | 2023-04-04 | 中车永济电机有限公司 | Non-transmission end bearing mounting structure of traction motor |
| CN215267945U (en) * | 2021-05-24 | 2021-12-21 | 德龙钢铁有限公司 | Roughing mill motor rotor anti-channeling auxiliary device |
| CN113726086B (en) * | 2021-08-27 | 2022-07-05 | 中车株洲电机有限公司 | Motor structure and bearing dismounting method thereof |
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2022
- 2022-05-23 CN CN202210559780.8A patent/CN114649892B/en active Active
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| Publication number | Publication date |
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| CN114649892A (en) | 2022-06-21 |
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