CN204615546U - A kind of bearing arrangement for permanent magnet direct driving motor main shaft - Google Patents
A kind of bearing arrangement for permanent magnet direct driving motor main shaft Download PDFInfo
- Publication number
- CN204615546U CN204615546U CN201520272355.6U CN201520272355U CN204615546U CN 204615546 U CN204615546 U CN 204615546U CN 201520272355 U CN201520272355 U CN 201520272355U CN 204615546 U CN204615546 U CN 204615546U
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- roller bearing
- main shaft
- aligning roller
- axle head
- self
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Abstract
The utility model belongs to technical field of motor manufacture, discloses a kind of bearing arrangement for permanent magnet direct driving motor main shaft.This bearing arrangement comprises major diameter self-aligning roller bearing and minor diameter self-aligning roller bearing; One end of described main shaft is set to thick axle head, and its other end is set to thin axle head, is connected with conical surface shaft part between described thick axle head and thin axle head; The thick axle head of described main shaft installs described major diameter self-aligning roller bearing, and the thin axle head of described main shaft installs described minor diameter self-aligning roller bearing; The end face of the thick axle head of described main shaft is provided with wheel hub, the outer ring surface of described major diameter self-aligning roller bearing is provided with casing, the outer ring surface of described minor diameter self-aligning roller bearing is provided with cabinet supports frame, described casing is fixedly connected with cabinet supports frame, and described conical surface shaft part is provided with rotor field spider.This bearing arrangement requires low to part processing and assembly precision, and structure is simple, easy to operate.
Description
Technical field
The utility model belongs to technical field of motor manufacture, particularly a kind of bearing arrangement for permanent magnet direct driving motor main shaft.
Background technology
At present, the bearing arrangement on permanent magnet direct driving motor main shaft adopts biserial conical bearing and cylinder roller bearing to coordinate, and front end biserial conical bearing mainly bears axial force, and rear end cylinder roller bearing bears radial load; This arrangement form requires high to part processing and assembly precision, and part difficulty of processing is large, and integral installation timing is wasted time and energy; Therefore, be necessary that research is a kind of to the bearing arrangement that part is processed and assembly precision requirement is low.
Utility model content
The purpose of this utility model is to provide a kind of bearing arrangement for permanent magnet direct driving motor main shaft, and this bearing arrangement requires low to part processing and assembly precision, and structure is simple, easy to operate.
For reaching above-mentioned technical purpose, the utility model adopts following technical scheme to be achieved.
For a bearing arrangement for permanent magnet direct driving motor main shaft, it is characterized in that, comprise major diameter self-aligning roller bearing and minor diameter self-aligning roller bearing; One end of described main shaft is set to thick axle head, and its other end is set to thin axle head, is connected with conical surface shaft part between described thick axle head and thin axle head; The thick axle head of described main shaft installs described major diameter self-aligning roller bearing, and the thin axle head of described main shaft installs described minor diameter self-aligning roller bearing; The end face of the thick axle head of described main shaft is provided with wheel hub, the outer ring surface of described major diameter self-aligning roller bearing is provided with casing, the outer ring surface of described minor diameter self-aligning roller bearing is provided with cabinet supports frame, described casing is fixedly connected with cabinet supports frame, and described conical surface shaft part is provided with rotor field spider.
Feature and further improvement of the technical program are:
Described major diameter self-aligning roller bearing adopts the serial self-aligning roller bearing of major diameter 248.
Described minor diameter self-aligning roller bearing adopts the serial self-aligning roller bearing of minor diameter 240.
Described wheel hub is fixed on the end face of thick axle head of main shaft by screw.
Bearing arrangement for permanent magnet direct driving motor main shaft of the present utility model, adopt major diameter self-aligning roller bearing to replace biserial conical bearing, minor diameter self-aligning roller bearing replaces cylinder roller bearing; Self-aligning roller bearing substantial radial load, also can bear the axial load of either direction simultaneously, there is high radial capacity, work under being specially adapted to heavy duty or oscillating load, so major diameter self-aligning roller bearing can bear the radial load from casing, minor diameter self-aligning roller bearing can bear the axial force that wheel hub is delivered to main shaft; The outer ring raceway of self-aligning roller bearing is spheric, therefore its aligning performance is good, and energy compensating coaxial degree error, reduces part processing and assembly precision requirement.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the structural representation of a kind of bearing arrangement for permanent magnet direct driving motor main shaft of the present utility model;
In figure: 1, major diameter self-aligning roller bearing; 2, minor diameter self-aligning roller bearing; 3, main shaft; 4, wheel hub; 5, casing; 6, cabinet supports frame; 7, rotor field spider; 8, screw;
301, thick axle head; 302, thin axle head; 303, conical surface shaft part.
Embodiment
With reference to Fig. 1, it is the structural representation of a kind of bearing arrangement for permanent magnet direct driving motor main shaft of the present utility model; This bearing arrangement comprises major diameter self-aligning roller bearing 1 and minor diameter self-aligning roller bearing 2; One end of main shaft 3 is set to thick axle head 301, and its other end is set to thin axle head 302, is connected with conical surface shaft part 303 between thick axle head 301 and thin axle head 302; The thick axle head 301 of main shaft 3 installs major diameter self-aligning roller bearing 1, the thin axle head 302 of main shaft 3 installs minor diameter self-aligning roller bearing 2, thick axle head 301 and thin axle head 302 all install self-aligning roller bearing, automatically can adjust the flexure of inclination because the angular error between main shaft 3 and end cap produces or main shaft, and self-aligning roller bearing can bear larger radial load and bi-directional axial load; The end face of the thick axle head 301 of main shaft 3 is provided with wheel hub 4, the outer ring surface of major diameter self-aligning roller bearing 1 is provided with casing 5, the outer ring surface of minor diameter self-aligning roller bearing 2 is provided with cabinet supports frame 6, casing 5 is fixedly connected with cabinet supports frame 6, conical surface shaft part 303 is provided with rotor field spider 7.
Wherein, major diameter self-aligning roller bearing 1 adopts the serial self-aligning roller bearing of major diameter 248, and major diameter self-aligning roller bearing 1 can bear the radial load from casing 5.
Wherein, minor diameter self-aligning roller bearing 2 adopts the serial self-aligning roller bearing of minor diameter 240, and minor diameter self-aligning roller bearing 2 can bear the axial force that wheel hub 4 is delivered to main shaft.
Wherein, wheel hub 4 is fixed on the end face of thick axle head 301 of main shaft 3 by screw 8, thick axle head 301 is because diameter is greatly so intensity is high, and can directly wheel hub 4 be fixed on the end face of thick axle head 301 of main shaft 3 by screw 8, other union pieces such as intermediate sleeve need not be increased again, easy for installation, reduce motor cost.
Bearing arrangement for permanent magnet direct driving motor main shaft of the present utility model, adopt major diameter self-aligning roller bearing 1 to replace biserial conical bearing, minor diameter self-aligning roller bearing 2 replaces cylinder roller bearing; Self-aligning roller bearing substantial radial load, also can bear the axial load of either direction simultaneously, there is high radial capacity, work under being specially adapted to heavy duty or oscillating load, so major diameter self-aligning roller bearing 1 can bear the radial load from casing 5, minor diameter self-aligning roller bearing 2 can bear the axial force that wheel hub 4 is delivered to main shaft 3; The outer ring raceway of self-aligning roller bearing is spheric, therefore its aligning performance is good, and energy compensating coaxial degree error, reduces part processing and assembly precision requirement.This bearing arrangement structure is simple, easy to operate.
Although be below described embodiment of the present utility model by reference to the accompanying drawings, but the utility model is not limited to above-mentioned specific embodiments and applications field, above-mentioned specific embodiments is only schematic, guiding, instead of restrictive.Those of ordinary skill in the art is under the enlightenment of specification, and when not departing from the scope that the utility model claim is protected, can also make a variety of forms, these all belong to the row of the utility model protection.
Claims (4)
1. for a bearing arrangement for permanent magnet direct driving motor main shaft, it is characterized in that, comprise major diameter self-aligning roller bearing and minor diameter self-aligning roller bearing; One end of described main shaft is set to thick axle head, and its other end is set to thin axle head, is connected with conical surface shaft part between described thick axle head and thin axle head; The thick axle head of described main shaft installs described major diameter self-aligning roller bearing, and the thin axle head of described main shaft installs described minor diameter self-aligning roller bearing; The end face of the thick axle head of described main shaft is provided with wheel hub, the outer ring surface of described major diameter self-aligning roller bearing is provided with casing, the outer ring surface of described minor diameter self-aligning roller bearing is provided with cabinet supports frame, described casing is fixedly connected with cabinet supports frame, and described conical surface shaft part is provided with rotor field spider.
2. a kind of bearing arrangement for permanent magnet direct driving motor main shaft according to claim 1, is characterized in that, described major diameter self-aligning roller bearing adopts the serial self-aligning roller bearing of major diameter 248.
3. a kind of bearing arrangement for permanent magnet direct driving motor main shaft according to claim 1, is characterized in that, described minor diameter self-aligning roller bearing adopts the serial self-aligning roller bearing of minor diameter 240.
4. a kind of bearing arrangement for permanent magnet direct driving motor main shaft according to claim 1, it is characterized in that, described wheel hub is fixed on the end face of thick axle head of main shaft by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520272355.6U CN204615546U (en) | 2015-04-29 | 2015-04-29 | A kind of bearing arrangement for permanent magnet direct driving motor main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520272355.6U CN204615546U (en) | 2015-04-29 | 2015-04-29 | A kind of bearing arrangement for permanent magnet direct driving motor main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204615546U true CN204615546U (en) | 2015-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520272355.6U Active CN204615546U (en) | 2015-04-29 | 2015-04-29 | A kind of bearing arrangement for permanent magnet direct driving motor main shaft |
Country Status (1)
| Country | Link |
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| CN (1) | CN204615546U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110417147A (en) * | 2019-05-20 | 2019-11-05 | 天津市天发重型水电设备制造有限公司 | A kind of improved rotor field spider hot jacket assembling structure |
-
2015
- 2015-04-29 CN CN201520272355.6U patent/CN204615546U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110417147A (en) * | 2019-05-20 | 2019-11-05 | 天津市天发重型水电设备制造有限公司 | A kind of improved rotor field spider hot jacket assembling structure |
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