CN102522845A - Motor bearing apparatus with sleeve - Google Patents
Motor bearing apparatus with sleeve Download PDFInfo
- Publication number
- CN102522845A CN102522845A CN2011104071924A CN201110407192A CN102522845A CN 102522845 A CN102522845 A CN 102522845A CN 2011104071924 A CN2011104071924 A CN 2011104071924A CN 201110407192 A CN201110407192 A CN 201110407192A CN 102522845 A CN102522845 A CN 102522845A
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- Prior art keywords
- bearing
- cover
- rotating shaft
- motor bearings
- band
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- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a motor bearing apparatus with a sleeve. The motor bearing apparatus comprises a rotating shaft, a sleeve, a locking assembly, a bearing inner cover, a bearing outer cover, a bearing, a bearing sleeve and a sealing ring, wherein the sleeve, the locking assembly, the bearing inner cover, the bearing outer cover, the bearing, the bearing sleeve and the sealing ring are installed on the rotating shaft. The motor bearing apparatus is characterized in that: one side of a bearing inner ring is localized by the bearing inner cover and the other side of the bearing inner ring is fixed by the sleeve and the locking assembly; a groove that is used for installing the locking assembly is opened at an outboard of an inner bore of the sleeve as well as an M330*6-7H screw thread is threaded; an R15 chamfer is formed at a position close to an inner side position; and there is a 0.5-mm gap between an axial inner side position and the rotating shaft; and an axial relative position between the sleeve and the rotating shaft can be adjusted in a range of from 0 to 5 mm. According to the invention, when the apparatus is utilized at a motor, security and reliability of fixing of a bearing can be ensured; service life of the bearing can be substantially improved; therefore, operation reliability of the motor can be enhanced.
Description
Technical field
A kind of motor bearings device with cover belongs to field of motor manufacturing, relates to a kind of motor bearings device, especially a kind of motor bearings device with cover of motor force side.
Background technology
Rotor is supported by a unsteady bearing arrangement and a fixing bearing arrangement usually at present.The bearing arrangement that floats is meant that bearing exterior and interior cover seam and bearing outer ring end face have certain clearance, allows rotating shaft to move axially.When axle generation thermal expansion, therefore bearing can not bear excessive extra duty.Fixing bearing arrangement leans on bearing exterior and interior cover seam that bearing outer ring is blocked, and leans on shaft block ring or locking nut and rotating shaft shoulder block that bearing inner race is blocked, and plays the effect of axial location.When fixing bearing arrangement leans on shaft block ring and rotating shaft shoulder block that bearing inner race is blocked, because the size of shaft block ring and the restriction of stressing conditions can't be satisfied major diameter or bear the needs than the heavy load bearing.Fixing bearing arrangement can be selected for use by locking nut and rotating shaft shoulder block bearing inner race was blocked this moment, though can satisfy major diameter or bear the needs than the heavy load bearing, also had certain defective.Because the position of locking nut and rotating shaft shoulder block can not be regulated; Cause the rigging position of bearing not regulate according to the cumulative limit of parts; So not only improve the processing grade of each parts of motor, reduced production efficiency, wasted unnecessary human and material resources, financial resources; And the assembly quality of bearing also can't guarantee, reduces motor useful life.
Prior art such as Fig. 1 and Fig. 2:
Shown in Figure 1 is the structural representation of available technology adopting locking nut rigid bearing inner ring, and bearing 7 inner rings one side is by rotating shaft 1 shoulder block location, and opposite side is fixing by locking nut 9.
Shown in Figure 2 is the structural representation of available technology adopting shaft block ring rigid bearing inner ring, and bearing 7 inner rings one side is by rotating shaft 1 shoulder block location, and opposite side is fixing by shaft block ring 10.
Above-mentioned two kinds of schemes of the prior art, when rotating shaft and the error accumulation that is installed in the part processing in the rotating shaft are inner to bearing arrangement, bearing inner race fixedly have a potential safety hazard, a series of problem can appear during the bearing operation.
Summary of the invention
The objective of the invention is in order to solve major diameter and to bear the problem that to regulate than the rigging position of heavy load bearing; A kind of motor bearings device with cover is provided; This device is optimized from structure, makes whole apparatus structure simple, is convenient to dismounting; And can reduce big part (like the forging gear shaft) wearing and tearing, and can make its regulating shaft take up coordination to put.
For realizing above-mentioned purpose, technical scheme provided by the invention is following:
The motor bearings device of this band cover comprises machine shaft, is installed on internal bearing cover, bearing and bearing end cover in the rotating shaft successively; Be arranged with bearing holder (housing, cover) on the said bearing; Said rotating shaft also is arranged with cover in the position of bearing end cover, and bearing end cover is enclosed within and puts, and the inner ring of bearing is withstood in the inner of said cover; The outer end diameter of said cover is greater than inner diameter, and has sealing ring at inner step with the outer end transition; Be provided with expansion set between the outer end of said cover and the rotating shaft.
The dimensional tolerance of respectively keeping off of above-mentioned rotating shaft is and subtracts tolerance, and the axial dimension tolerance of said internal bearing cover and cover is plus tolerance.
The screw thread that above-mentioned rotating shaft shaft extension end is attacked M330*6-7h.
Above-mentioned bearing inner race inboard is located by internal bearing cover, and the bearing inner race outside is fixed by cover and expansion set.
Above-mentioned bearing outer ring inboard is located by bearing holder (housing, cover), and the bearing outer ring outside is fixed by bearing end cover; Said bearing end cover is through being bolted on the bearing holder (housing, cover).
The radial direction of above-mentioned cover is inboard: axially the outside has the groove of placing expansion set; The screw thread that M330*6-7H is attacked in axial centre position; The chamfering that R15 is axially arranged near inner side; The gap that 0.5mm is axially arranged between inner side and the rotating shaft; Axial distance between cover and the rotating shaft can be regulated 0～5mm.
More than cover the radial direction of step of the inner and outer end transition outside have the V-ring body groove of laying sealing ring; The axial distance of sealing ring and bearing end cover can be regulated 0～4mm.
Leave the rotary gap of 1～2mm between above-mentioned internal bearing cover and the bearing holder (housing, cover).
Leave the rotary gap of 0.5～1mm between above-mentioned bearing end cover and the cover.
Being contact seal when static between above-mentioned sealing ring and the bearing end cover, is non-contacting seal during rotation.
The present invention has following beneficial effect:
Bearing inner race of the present invention inboard is located by internal bearing cover, has reduced the wearing and tearing of countershaft shoulder block when bearing bears load.The bearing inner race of the present invention outside is fixed by cover and expansion set, and the radial direction of cover is inboard: axially the outside has the groove of placing expansion set; The screw thread that M330*6-7H is attacked in axial centre position; The chamfering that R15 is axially arranged near inner side; The gap of 0.5mm is axially arranged between inner side and the rotating shaft, and the axial distance between cover and the rotating shaft can be according to the position adjustments 0～5mm of bearing assembling like this.Mix up the back expansion set is installed, bearing inner race is fixed.Because the fixture of bearing can be regulated according to the rigging position of bearing, therefore guarantee the assembly quality of bearing arrangement, thereby improved bearing useful life greatly, improve the operational reliability of whole motor.
Description of drawings
Fig. 1 is the structural representation of available technology adopting locking nut rigid bearing inner ring.
Fig. 2 is the structural representation of available technology adopting shaft block ring rigid bearing inner ring.
Fig. 3 is the sketch map of an embodiment of bearing arrangement of band cover of the present invention.
Wherein: 1 is rotating shaft; 2 is expansion set; 3 are cover; 4 is sealing ring; 5 is bearing end cover; 6 is bearing holder (housing, cover); 7 is bearing; 8 is internal bearing cover; 9 is locking nut; 10 is shaft block ring.
Embodiment
Referring to Fig. 3, the motor bearings device of band cover of the present invention comprises machine shaft 1, is installed on internal bearing cover 8, bearing 7 and bearing end cover 5 in the rotating shaft 1 successively, is arranged with bearing holder (housing, cover) 6 on the bearing 7.Rotating shaft 1 also is arranged with 3 in the position of bearing end cover 5, and bearing end cover 5 is enclosed within on 3, and the inner ring of bearing 7 is withstood in cover the inner of 3, and the outer end diameter of cover 3 is greater than inner diameter, and has sealing ring 4 at inner step with the outer end transition; Be provided with expansion set 2 between the outer end of cover 3 and the rotating shaft 1.The dimensional tolerance of respectively keeping off of its shaft 1 is and subtracts tolerance, and internal bearing cover 8 is plus tolerance with the axial dimension tolerance of cover 3.Attack the screw thread of M330*6-7h at the shaft extension end of rotating shaft 1.
Bearing 7 inner ring inboards are by internal bearing cover 8 location, and the bearing 7 inner rings outside is fixing with expansion set 2 by cover 3.Inboard, bearing 7 outer ring is by bearing holder (housing, cover) 6 location, and the outside, bearing 7 outer rings is fixing by bearing end cover 5; Bearing end cover 5 is through being bolted on the bearing holder (housing, cover) 6.The radial direction of cover 3 is inboard: axially the outside has the groove of placing expansion set 2; The screw thread that M330*6-7H is attacked in axial centre position; The chamfering that R15 is axially arranged near inner side; The gap that 0.5mm is axially arranged between inner side and the rotating shaft 1; Axial distance between cover 3 and the rotating shaft 1 can be regulated 0～5mm.The radial direction outside of the inner of cover 3 and the step of outer end transition has the V-ring body groove of laying sealing ring 4; Sealing ring 4 can be regulated 0～4mm with the axial distance of bearing end cover 5.Leave the rotary gap of 1～2mm between internal bearing cover 8 and the bearing holder (housing, cover) 6.Leave the rotary gap of 0.5～1mm between bearing end cover 5 and the cover 3.Being contact seal when static between sealing ring 4 and the bearing end cover 5, is non-contacting seal during rotation.
In sum, the rigging position of bearing can be regulated according to the physical location of bearing, and two places of A, B indication all are the positions that can be used for regulating among the figure, thereby has guaranteed the safe and reliable of bearing fixing, has improved bearing useful life widely.
Claims (10)
1. motor bearings device with cover; Comprise machine shaft (1); Be installed on internal bearing cover (8), bearing (7) and bearing end cover (5) in the rotating shaft (1) successively, be arranged with bearing holder (housing, cover) (6) on the said bearing (7), it is characterized in that: said rotating shaft (1) also is arranged with (3) in the position of bearing end cover (5); Bearing end cover (5) is enclosed within on (3); The inner ring of bearing (7) is withstood in the inner of said cover (3), and the outer end diameter of said cover (3) is greater than inner diameter, and has sealing ring (4) at inner step with the outer end transition; Be provided with expansion set (2) between the outer end of said cover (3) and the rotating shaft (1).
2. the motor bearings device of band according to claim 1 cover is characterized in that: the dimensional tolerance of respectively keeping off of said rotating shaft (1) is and subtracts tolerance, and said internal bearing cover (8) is plus tolerance with the axial dimension tolerance of overlapping (3).
3. the motor bearings device of band cover according to claim 1 is characterized in that: the screw thread that rotating shaft (1) shaft extension end is attacked M330*6-7h.
4. the motor bearings device of band cover according to claim 1 is characterized in that: said bearing (7) inner ring inboard is by internal bearing cover (8) location, and bearing (7) the inner ring outside is fixing by cover (3) and expansion set (2).
5. the motor bearings device of band cover according to claim 4 is characterized in that: said bearing (7) inboard, outer ring is by bearing holder (housing, cover) (6) location, and the outside, bearing (7) outer ring is fixing by bearing end cover (5); Said bearing end cover (5) is through being bolted on the bearing holder (housing, cover) (6).
6. the motor bearings device of band cover according to claim 4 is characterized in that: the radial direction of said cover (3) is inboard: axially the outside has the groove of placing expansion set (2); The screw thread that M330*6-7H is attacked in axial centre position; The chamfering that R15 is axially arranged near inner side; The gap that 0.5mm is axially arranged between inner side and the rotating shaft (1); Axial distance between cover (3) and the rotating shaft (1) can be regulated 0～5mm.
7. the motor bearings device of band cover according to claim 1 is characterized in that: the radial direction outside of the inner of cover (3) and the step of outer end transition has the V-ring body groove of laying sealing ring (4); Sealing ring (4) can be regulated 0～4mm with the axial distance of bearing end cover (5).
8. the motor bearings device of band cover according to claim 1 is characterized in that: the rotary gap that leaves 1～2mm between said internal bearing cover (8) and the bearing holder (housing, cover) (6).
9. the motor bearings device of band expansion set according to claim 1 is characterized in that: the rotary gap that leaves 0.5～1mm between said bearing end cover (5) and the cover (3).
10. the motor bearings device of band according to claim 1 cover is characterized in that: being contact seal when static between said sealing ring (4) and the bearing end cover (5), is non-contacting seal during rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110407192.4A CN102522845B (en) | 2011-12-08 | 2011-12-08 | Motor bearing apparatus with sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110407192.4A CN102522845B (en) | 2011-12-08 | 2011-12-08 | Motor bearing apparatus with sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102522845A true CN102522845A (en) | 2012-06-27 |
| CN102522845B CN102522845B (en) | 2014-01-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110407192.4A Active CN102522845B (en) | 2011-12-08 | 2011-12-08 | Motor bearing apparatus with sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102522845B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104539086A (en) * | 2014-12-09 | 2015-04-22 | 张斐斐 | Outer sleeve structure for electric generator |
| CN106907398A (en) * | 2017-05-02 | 2017-06-30 | 西安赛隆金属材料有限责任公司 | A kind of high-speed rotating shaft bearing support assembly |
| CN108448794A (en) * | 2018-05-23 | 2018-08-24 | 中科盛创（青岛）电气股份有限公司 | A kind of bearing arrangement of double-rotor machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2118364U (en) * | 1992-05-15 | 1992-10-07 | 上海先锋电工厂 | Three phase asynchronous intermediate frequency vibrating motor |
| US20050231053A1 (en) * | 2004-04-16 | 2005-10-20 | Fanuc Ltd | Electric motor |
| CN201312218Y (en) * | 2008-11-27 | 2009-09-16 | 湘潭电机股份有限公司 | Alternative current variable frequency speed regulation asynchronous traction motor |
| CN102437684A (en) * | 2011-12-02 | 2012-05-02 | 西安泰富西玛电机有限公司 | Primary gear transmission motor |
-
2011
- 2011-12-08 CN CN201110407192.4A patent/CN102522845B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2118364U (en) * | 1992-05-15 | 1992-10-07 | 上海先锋电工厂 | Three phase asynchronous intermediate frequency vibrating motor |
| US20050231053A1 (en) * | 2004-04-16 | 2005-10-20 | Fanuc Ltd | Electric motor |
| CN201312218Y (en) * | 2008-11-27 | 2009-09-16 | 湘潭电机股份有限公司 | Alternative current variable frequency speed regulation asynchronous traction motor |
| CN102437684A (en) * | 2011-12-02 | 2012-05-02 | 西安泰富西玛电机有限公司 | Primary gear transmission motor |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104539086A (en) * | 2014-12-09 | 2015-04-22 | 张斐斐 | Outer sleeve structure for electric generator |
| CN106907398A (en) * | 2017-05-02 | 2017-06-30 | 西安赛隆金属材料有限责任公司 | A kind of high-speed rotating shaft bearing support assembly |
| CN106907398B (en) * | 2017-05-02 | 2023-09-15 | 西安赛隆金属材料有限责任公司 | Bearing support device for high-speed rotating shaft |
| CN108448794A (en) * | 2018-05-23 | 2018-08-24 | 中科盛创（青岛）电气股份有限公司 | A kind of bearing arrangement of double-rotor machine |
| CN108448794B (en) * | 2018-05-23 | 2024-04-16 | 深圳市弘城益五金制品有限公司 | Bearing structure of double-rotor motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102522845B (en) | 2014-01-15 |
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| C14 | Grant of patent or utility model | ||
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Effective date of registration: 20180920 Granted publication date: 20140115 |
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Date of cancellation: 20210920 Granted publication date: 20140115 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20230609 Address after: No. 21, Building 11, Zone A, Phase I, Business Plaza, south of Huanghe Road and east of Huashan Street, Longsha District, Qiqihar City, Heilongjiang Province, 161005 Patentee after: Qiqihar Nankuichang Enterprise Management Consulting Co.,Ltd. Address before: 710032 No. 159 Mingguang Road, Xi'an economic and Technological Development Zone, Shaanxi Patentee before: XI'AN TECH FULL SIMO MOTOR Co.,Ltd. |
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| TR01 | Transfer of patent right |