CN202188022U - Bearing fixing structure and motor adopting same - Google Patents
Bearing fixing structure and motor adopting same Download PDFInfo
- Publication number
- CN202188022U CN202188022U CN2011202694536U CN201120269453U CN202188022U CN 202188022 U CN202188022 U CN 202188022U CN 2011202694536 U CN2011202694536 U CN 2011202694536U CN 201120269453 U CN201120269453 U CN 201120269453U CN 202188022 U CN202188022 U CN 202188022U
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- China
- Prior art keywords
- compensation device
- bearing
- fixing structure
- bearing fixing
- flange plate
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Abstract
The utility model provides a bearing fixing structure which comprises a bearing, an end cover and a compensation device, wherein, the end cover is provided with a bearing chamber; the bearing is positioned in the compensation device; a limit stage or a limit slot is formed on the outer wall of the cavity of the compensation device, and the limit slot or the limit stage is correspondingly arranged on the inner wall of the bearing chamber; and the compensation device and the bearing chamber are fixed together through the limit stage and the limit slot. According to the above structure, the limit stage and the limit slot are buckled together, so creep deformation between the bearing and the bearing chamber is avoided, the noise is reduced, and the service life of the bearing is prolonged. Besides, the utility model further provides a motor adopting the bearing fixing structure, so the operation noise is reduced, the failure rate of the motor is reduced too and the service life of the bearing of the motor is prolonged.
Description
Technical field
The motor that the utility model relates to a kind of bearing fixing structure and has this bearing fixing structure.
Background technique
At present; For hoisting power, reduce motor weight, increasing motor develops to high rotary speed direction on the market; Pot motor requires very high to the mounting structure of motor bearings; Bearing chamber intensity and required precision to electric machine casing are also higher, and particularly the cooperating structure of bearing and bearing chamber should reduce noise and reduce wear again.
At present, motor bearings and several kinds of forms below cooperating of bearing chamber mainly exists on the market:.
1. mode one: the direct contact matching of bearing and bearing chamber, and no intermediary device between bearing chamber and the bearing has problems to high speed lower bearing outer rim and bearing chamber have relative movement, produces friction, the bearing chamber serious wear, bearing produces creep.
2. mode two: the bearing outer rim is installed O type rubber ring, is used to prevent the friction between bearing and the bearing chamber, and shortcoming is a high speed O type rubber ring serious wear down, and the life-span is restricted, and is not suitable for pot motor.
3. mode three: O type rubber ring is installed in the bearing chamber, and bearing is a plain bearing, and shortcoming is a high speed O type rubber ring serious wear down, and the life-span is restricted, and is not suitable for high-speed electric expreess locomotive.
Summary of the invention
A purpose of the utility model is to overcome the deficiency that is prone to place creep between bearing and the bearing chamber; The bearing fixing structure that a kind of bearing and bearing chamber can place creep is provided, and another purpose of the utility model provides a kind of motor that comprises this bearing fixing structure.
A kind of bearing fixing structure comprises bearing and end cap, and said end cap is provided with bearing chamber; Also comprise compensation device, said compensation device is provided with cavity, and said bearing fixing is in said compensation device; Said bearing chamber is provided with the space that is used to install compensation device; The chamber outer wall of said compensation device is provided with limit dais or restraining groove, corresponding restraining groove or the limit dais of being provided with on the inwall of said bearing chamber, and said compensation device and bearing chamber are fixed together through limit dais and restraining groove.
Further, on end face of said compensation device, be provided with flange plate, on the end face of flange plate, be provided with limit dais near end cap.
Further, on the end face of flange plate near end cap, be provided with a plurality of interval platforms that are used to dispel the heat, said a plurality of intervals platform is arranged on the flange plate along circumference uniformly, and the axial length of said limit dais is greater than the axial length of said interval platform.
Further, the chamber outer wall upper edge of said compensation device is axially arranged with vent slot, and said vent slot one end extends on the said flange plate, and the said vent slot the other end extends on another end face of said compensation device.
Further, the other end of said flange plate is provided with the sign groove that is used to indicate the limit dais position, and said sign groove and said limit dais are arranged on the flange plate both sides, and said sign groove and said limit dais are positioned at same axial direction.
Further, chamfering between another end face of said compensation device and the said compensation device perisporium.
Further, the cavity inner wall upper edge of said compensation device is axially arranged with compensating tank.
Further, said compensation device is the compensation device that special engineering plastics is processed.
A kind of motor comprises the bearing fixing structure, and said bearing fixing structure is above-mentioned bearing fixing structure.
The utility model adopts after such structure, and bearing is positioned at compensation device, and compensation device and bearing chamber are fixed together; Through fastening between limit dais and the restraining groove; Making between bearing and the bearing chamber not can place creep, has reduced noise, improves the working life of bearing.In addition, the utility model also provides a kind of motor, and motor is through adopting this bearing fixing structure, and noise reduces during work, improves the bearing working life of motor, makes the rate of fault of motor descend.
Description of drawings
Fig. 1 is a kind of embodiment's of the utility model bearing fixing structure a decomposing schematic representation.
Fig. 2 is a kind of embodiment's of the utility model bearing fixing structure the structural representation of end cap.
Fig. 3 is a kind of embodiment's of the utility model bearing fixing structure the structural representation of compensation device.
Fig. 4 is the structural representation of another angle of Fig. 3 compensation device.
Wherein.
End cap 100
Restraining groove 102
Compensating tank 204
Sign groove 205
Fillet 207
Bearing 300.
Embodiment
Clearer for technical problem, technological scheme and beneficial effect that the utility model is solved, below in conjunction with accompanying drawing and embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
A kind of bearing fixing structure that the utility model provides; Comprise bearing 300 and end cap 100; Said end cap 100 is provided with bearing chamber 101, also comprises compensation device 200, and said compensation device 200 is provided with the cavity that can hold bearing 300; Said bearing 300 adopts interference fit to be fixed in the cavity of said compensation device 200; Said bearing chamber 101 is provided with the space that is used to install compensation device, and said compensation device 200 is installed in the space of bearing chamber 101, and the chamber outer wall of said compensation device is provided with limit dais (not shown) or restraining groove 201; Corresponding restraining groove (not shown) or the limit dais 102 of being provided with on the inwall of said bearing chamber 101, said compensation device and bearing chamber are fixed together through limit dais 201 and restraining groove 102.
In the present embodiment, the chamber outer wall that is employed in said compensation device is provided with restraining groove 201, the corresponding limit dais 102 that is provided with on the inwall of said bearing chamber 101.
Said compensation device 200 can be selected both-side opening or one-sided opening as required, and when bearing chamber 101 both sides of end cap 100 needed complete opening, compensation device 200 was selected both-side opening; In the time of 101 one-sided openings of needs of bearing chamber of end cap 100, compensation device 200 is selected one-sided opening, and in the present embodiment, compensation device 200 adopts one-sided opening.
As shown in figures 1 and 3, said compensation device 200 is for holding the cavity body of bearing, in the present embodiment; Said compensation device 200 is the cavity body of tubbiness, an end opening, the other end sealing; On the end face of said compensation device 200 openings one side, be provided with flange plate 203, on the one side of flange plate 203, be provided with platform 202 at interval near end cap 100; The number of said interval platform 202 is at least one; A plurality of said intervals platform 202 along the circumferential direction is arranged on the flange plate 203 uniformly, through increasing frictional force with the applying of bearing chamber 101 end faces, prevents under high-speed state, to relatively move between the compensation device 200 and bearing chamber 101.
Said limit dais 201 is arranged on the flange plate 203 of interval platform 202 homonymies; In the present embodiment, 201, three limit daiss of three limit daiss 201 and three location overlaps of platforms 202 are at interval wherein arranged on the flange plate 203; Axial direction at compensation device 200; The length of said limit dais 201 is provided with the sign groove 205 that is used to indicate limit dais 201 positions greater than the length of said interval platform 202 at said flange plate 203 another sides, and said sign groove 205 is corresponding with one of them limit dais 201; Confirm the position of limit dais 201 when being convenient to install, make that installation is more convenient.
In conjunction with Fig. 3 and shown in Figure 4; On the chamber outer wall of said compensation device 200, be axially arranged with vent slot 206, said vent slot 206 1 ends are connected on the said flange plate 203, and said vent slot 206 the other ends extend on the end face of said compensation device 200 closed sides; In the present embodiment; The radial cross section of said vent slot 206 is square, forms a square pore between said vent slot 206 and the bearing chamber 101, is convenient to install and heat radiation.
For the ease of installing, make things convenient for this device to cooperate with bearing chamber, raising manufacturability and operability, said compensation device 200 is not provided with chamfering between end face and the said compensation device perisporium of flange plate one side, and the formed part of chamfering is called fillet 207.
In conjunction with Fig. 2 and shown in Figure 3; Because being fastened through limit dais and restraining groove between bearing chamber 101 and the compensation device 200; So the chamber outer wall of said compensation device is provided with limit dais (not shown) or restraining groove 201, can establish limit dais and restraining groove mutually on corresponding restraining groove (not shown) or the limit dais 102 of being provided with on the inwall of said bearing chamber 101, bearing chamber 101 and compensation device 200; In the present embodiment; On said end cap 100, be provided with bearing chamber 101, said bearing chamber 101 is provided with restraining groove 102 near the inwall of opening side, and said restraining groove 102 is corresponding with the position of said limit dais 201; Said compensation device 200 is positioned at bearing chamber 101; Compensation device 200 and bearing chamber 101 are fixed together through interference fit, through cooperating of restraining groove 102 and limit dais 201, prevent compensation device 200 generation plaies.
For the ease of the installation of compensation device 200, be provided with sloping platform 103 between the end face of bearing chamber 101 opening side and the bearing chamber inwall, corresponding with the fillet 207 on the compensation device 200, be convenient to install.
On said compensation device 200 cavity inner walls, be provided with compensating tank 204, be used for when bearing 300 is installed, in the compensation device 200 the surplus amount being arranged, also can play the effect of heat radiation.
The material of said compensation device 200 need adopt high temperature resistant and the bigger special engineering plastics of mechanical strength.
A kind of motor; Comprise end cap 100; Said end cap 100 is provided with bearing chamber 101, on bearing chamber 101 inwalls, is provided with restraining groove 102, and said compensation device 200 is fixed together through interference fit and bearing chamber 101; Said compensation device 200 is provided with limit dais 201, and said limit dais 201 cooperates with restraining groove 102 can prevent that compensation device 200 and bearing chamber 101 from relatively moving.
The bearing fixing structure that the utility model provides comprises bearing 300, end cap 100, and said end cap 100 is provided with bearing chamber 101; Said bearing chamber 101 is provided with restraining groove 102 near the inwall of the end face of opening side; On a side end face of said compensation device 200 openings, be provided with flange plate 203, on the one side of flange plate 203, be provided with limit dais 201, through the fastening of limit dais 201 and restraining groove 102 near end cap 100; Prevent that compensation device 200 and bearing chamber 101 from relatively moving; Be provided with at flange plate 203 and also be provided with platform 202 at interval on the one side of limit dais 201, flange plate 203 and bearing chamber 101 are separated, reduce heat transfer through interval platform 202; Also increased simultaneously the frictional force between flange plate 203 and bearing chamber 101 end faces; In order to satisfy technologic requirement, in compensation device 200, also be provided with compensating tank 204 vertically, make fixing more firm between bearing 300 and the compensation device 200; In addition when compensation device 200 is installed for the ease of confirming the position of flange plate 203 upper limit platforms 201, also be provided with the sign groove 205 that is used to identify at flange plate 203 opposite sides.In order to guarantee good heat radiation between bearing chamber 101 and the compensation device 200; Be axially arranged with vent slot 206 in compensation device 200 chamber outer wall upper edges, vent slot 206 1 ends are positioned on the flange plate 203, and vent slot 206 the other ends are positioned on the end face of compensation device 200 non-flange plate 203 1 sides; Form vent between the inwall of bearing chamber 101 and the vent slot 206 and be convenient to timely heat radiation; Through adopting this structure, bearing 300 can place creep in bearing chamber 101, has reduced mutual wearing and tearing; Reduce noise, improved the working life of bearing.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (9)
1. a bearing fixing structure comprises bearing and end cap, and said end cap is provided with bearing chamber; It is characterized in that; Also comprise compensation device, said compensation device is provided with cavity, and said bearing fixing is in the cavity of said compensation device; Said bearing chamber is provided with the space that is used to install compensation device; The cavity chamber outer wall of said compensation device is provided with limit dais or restraining groove, corresponding restraining groove or the limit dais of being provided with on the inwall of said bearing chamber, and said compensation device and bearing chamber are fixed together through limit dais and restraining groove.
2. bearing fixing structure according to claim 1 is characterized in that, on an end face of said compensation device, is provided with flange plate, on the end face of flange plate near end cap, is provided with limit dais.
3. bearing fixing structure according to claim 2; It is characterized in that; On the end face of flange plate, be provided with a plurality of interval platforms that are used to dispel the heat near end cap; Said a plurality of intervals platform is arranged on the flange plate along same circumferencial direction uniformly, and the axial length of said limit dais is greater than the axial length of said interval platform.
4. bearing fixing structure according to claim 3; It is characterized in that; The chamber outer wall upper edge of said compensation device is axially arranged with vent slot, and said vent slot one end extends on the said flange plate, and the said vent slot the other end extends on another end face of said compensation device.
5. bearing fixing structure according to claim 3; It is characterized in that; The other end of said flange plate is provided with the sign groove that is used to indicate the limit dais position, and said sign groove and said limit dais are arranged on the flange plate both sides, and said sign groove and said limit dais are positioned on the same axial direction.
6. bearing fixing structure according to claim 2 is characterized in that, chamfering between another end face of said compensation device and the said compensation device perisporium.
7. bearing fixing structure according to claim 6 is characterized in that, the cavity inner wall upper edge of said compensation device is axially arranged with compensating tank.
8. bearing fixing structure according to claim 7 is characterized in that, said compensation device is the compensation device that special engineering plastics is processed.
9. a motor comprises the bearing fixing structure, it is characterized in that, said bearing fixing structure is any described bearing fixing structure of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202694536U CN202188022U (en) | 2011-07-28 | 2011-07-28 | Bearing fixing structure and motor adopting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202694536U CN202188022U (en) | 2011-07-28 | 2011-07-28 | Bearing fixing structure and motor adopting same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202188022U true CN202188022U (en) | 2012-04-11 |
Family
ID=45919475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202694536U Expired - Lifetime CN202188022U (en) | 2011-07-28 | 2011-07-28 | Bearing fixing structure and motor adopting same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202188022U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644202A (en) * | 2013-11-19 | 2014-03-19 | 佘峰 | Fixing bearing pedestal |
-
2011
- 2011-07-28 CN CN2011202694536U patent/CN202188022U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644202A (en) * | 2013-11-19 | 2014-03-19 | 佘峰 | Fixing bearing pedestal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120411 |