CN213990419U - Motor bearing automatic cooling device - Google Patents
Motor bearing automatic cooling device Download PDFInfo
- Publication number
- CN213990419U CN213990419U CN202022761381.9U CN202022761381U CN213990419U CN 213990419 U CN213990419 U CN 213990419U CN 202022761381 U CN202022761381 U CN 202022761381U CN 213990419 U CN213990419 U CN 213990419U
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- China
- Prior art keywords
- cooling air
- cooling
- bearing
- motor
- air pipe
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- 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.)
- Withdrawn - After Issue
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 139
- 230000000694 effects Effects 0.000 description 7
- 230000001050 lubricating effect Effects 0.000 description 7
- 239000004519 grease Substances 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Motor Or Generator Cooling System (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The utility model provides an automatic cooling device for a motor bearing, which comprises a cooling bellows and a cooling air pipe; a through hole is formed in the shell of the cooling air box, and an air inlet of the cooling air pipe is connected with the through hole of the cooling air box; the air outlet of the cooling air pipe points to the load bearing of the motor. The air outlet of the cooling air pipe is conical. The through holes of the cooling air bellow are symmetrically arranged on two sides of the shell, the air inlets of the cooling air pipes are respectively and symmetrically connected with the through holes of the cooling air bellow, and the air outlets of the cooling air pipes are symmetrically directed to two sides of the load bearing. Through setting up the through-hole on the cooling bellows of non-load side of motor, adopt the cooling-air duct directly to lead the cooling air to the load bearing position of motor for under the normal operating condition of motor, load side bearing operating temperature reduces, and the temperature fluctuation range reduces, can not cause the high warning of bearing temperature or because of the high equipment protection tripping operation that leads to of bearing temperature. The working efficiency is improved, the service life of the bearing is ensured, and the reliable operation of the equipment is ensured.
Description
Technical Field
The utility model belongs to the motor field specifically belongs to a motor bearing automatic cooling device.
Background
At present, the operation environment of part of high-voltage motors is comparatively abominable, especially heavy-duty motors, like heavy load such as coal mills, the operation environment is relatively poor, it is higher to be close to load department ambient temperature, because heavy load, require the load side bearing of motor to add lubricating grease frequently and lubricate, when adding lubricating grease, the bearing temperature will rise rapidly, very easily cause the high warning of temperature or equipment tripping operation, heavy-duty high-voltage motor load side bearing does not have cooling device, consequently need manually to cool off when adding lubricating grease, adopt artifical cooling fan that installs additional to cool off the bearing temperature, but the job site space is limited, it can not effectively cool down to increase the cooling fan that installs additional, and caused very big inconvenience to overhaul work.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that exists among the prior art, the utility model provides a motor bearing automatic cooling device, simple structure, occupation space is little, can effectively cool down to motor load side bearing, has saved the work load of installing interim cooling fan additional, has guaranteed the safe and reliable operation of equipment, has maintained on-the-spot clean and tidy degree.
In order to achieve the above object, the utility model provides a following technical scheme:
an automatic cooling device for a motor bearing comprises a cooling air box and a cooling air pipe;
the cooling bellows is arranged on the non-load side of the motor; a through hole is formed in the shell of the cooling air box, and an air inlet of the cooling air pipe is connected with the through hole of the cooling air box; the air outlet of the cooling air pipe points to the load bearing of the motor.
Preferably, the air outlet of the cooling air pipe is conical.
Preferably, the through holes of the cooling air bellow are symmetrically arranged on two sides of the shell, the air inlets of the cooling air pipe are respectively and symmetrically connected with the through holes of the cooling air bellow, and the air outlets of the cooling air pipe are symmetrically directed to two sides of the load bearing.
Preferably, a flange is arranged at the through hole connecting part of the cooling air pipe and the cooling air box, and the cooling air pipe and the cooling air box are connected through a bolt connecting flange.
Preferably, a right-angle elbow is arranged at the bent part of the cooling air pipe.
Furthermore, the cooling air pipe is connected with the right-angle elbow through threads.
Furthermore, a thread connecting part of the cooling air pipe and the right-angle elbow is provided with a thread seal tape.
Preferably, the diameter of the cooling air pipe ranges from 60mm to 80 mm.
Preferably, the cooling air pipe is a galvanized pipe.
Compared with the prior art, the utility model discloses following profitable technological effect has:
the utility model provides a motor bearing automatic cooling device, through set up the through-hole on the non-load side cooling bellows at the motor, adopt the cooling air pipe directly to cause the load bearing position of motor with the cooling air for under the motor normal operating condition, load side bearing operating temperature reduces, and the temperature fluctuation range reduces, can not arouse that the high warning of bearing temperature leads to equipment protection tripping operation because of the bearing temperature is high. In the routine maintenance work, the maintenance worker does not need to manually install a cooling fan to cool the temperature of the bearing when adding lubricating grease to the motor, so that the labor is reduced, the working efficiency is improved, the service life of the bearing is ensured, and the reliable operation of the equipment is ensured.
Furthermore, the air outlet through setting up the cooling tuber pipe is the toper, adopts the toper ventilation hole in order to increase air-out pressure at the end of cooling tuber pipe, carries out the blast cooling to motor load side bearing, can effectively reduce the bearing temperature.
Furthermore, through the cooling air box through holes symmetrically arranged, the cooling air pipes are symmetrically arranged, the air outlets of the cooling air pipes can be uniformly cooled to the two sides of the load bearing, the influence of overlarge temperature deviation on the bearing is avoided, and the cooling uniformity is improved.
Furthermore, the right-angle elbow is adopted at the bent part for connection, so that the occupied space of the cooling air pipe is reduced. Through adopting the screw thread that has the unsintered tape to connect, can improve the sealing performance of junction, avoid the cooling air to leak, keep the cooling effect.
Drawings
Fig. 1 is a top view of an automatic cooling device for a motor bearing according to an embodiment of the present invention;
fig. 2 is a front view of an automatic cooling device for a motor bearing according to an embodiment of the present invention;
fig. 3 is a side view of an automatic cooling device for a motor bearing according to an embodiment of the present invention;
in the drawings: 1 is an electric motor; 2 is a cooling air pipe; 3 is a right-angle elbow; 4 is a cooling bellows; and 5 is a load bearing.
Detailed Description
The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.
Examples
The utility model relates to an automatic cooling device for motor bearings, which comprises a cooling air box 4, a cooling air pipe 2 and a load bearing 5; a through hole is formed in the shell of the cooling air box 4, and an air inlet of the cooling air pipe 2 is connected with the through hole of the cooling air box 4; the air outlet of the cooling air pipe 2 points to the load bearing 5. The air outlet of the cooling air pipe 2 is conical. The air outlet through setting up cooling tuber pipe 2 is the toper, adopts the toper ventilation hole in order to increase air-out pressure at the end of cooling tuber pipe 2, carries out the blast cooling to motor load side bearing, can effectively reduce the bearing temperature.
The through holes of the cooling air bellow 4 are symmetrically arranged at two sides of the shell, the air inlets of the cooling air pipes are respectively and symmetrically connected with the through holes of the cooling air bellow 4, and the air outlets of the cooling air pipes are symmetrically directed to two sides of the load bearing 5. And a flange is arranged at the through hole connecting part of the cooling air pipe 2 and the cooling air box 4 and is connected with the flange through a bolt. Through the cooling bellows through-hole that the symmetry set up for cooling air duct symmetry sets up, and the air outlet of cooling air duct can evenly cool down the both sides of load bearing, avoids the temperature deviation too big to cause the influence to the bearing, increases the homogeneity of cooling.
The cooling air pipe 2 is provided with a quarter bend 3 at the bending part, the cooling air pipe 2 is connected with the quarter bend 3 through threads, and the thread connection part of the cooling air pipe 2 and the quarter bend 3 is provided with a thread seal tape. The right-angle elbow is adopted at the bent part for connection, so that the occupied space of the cooling air pipe is reduced. Through adopting the screw thread that has the unsintered tape to connect, can improve the sealing performance of junction, avoid the cooling air to leak, keep the cooling effect.
During unit maintenance, two sides of a cooling air box 4 on the non-load side of a motor 1 are respectively provided with a hole, a galvanized pipe is used as a cooling air pipe 2 to directly lead to two sides of the lower part of a load bearing 5 on the load side of the motor 1, when the motor 1 runs, cooling air generated by the cooling air box 4 directly cools the load bearing 5 of the motor 1, after tests, the temperature of the load bearing 5 is obviously reduced, 15-18 ℃ lower than that of the other motor bearing at the same position, the cooling effect is obvious, the running temperature of lubricating grease in the bearing is ensured, a better lubricating effect can be achieved, the service life of the bearing is prolonged, and the safe running of the equipment is ensured.
The cooling effect of the cooling device of the bearing is basically determined through long-period tests on a test motor, the cooling effect of the stator of the motor is not influenced, the temperature of the stator of the motor is basically maintained between 65 ℃ and 68 ℃ before and after the cooling device is installed, and the upper limit of temperature fluctuation of the bearing can be controlled within 70 ℃ when the temperature is highest in summer. The work load of installing interim cooling fan has also guaranteed the safe and reliable operation of equipment promptly having saved, has still maintained on-the-spot clean and tidy degree.
Under the normal operation state of the motor 1, the operation temperature of the load bearing 5 is reduced, the temperature fluctuation amplitude is reduced, and the condition that the temperature of the bearing is high and the alarm is given out or equipment protection tripping is caused due to the high temperature of the bearing can be avoided. In the routine maintenance work, the maintenance worker does not need to manually install a cooling fan to cool the temperature of the bearing when adding lubricating grease to the motor 1, so that the labor is reduced, and the working efficiency is improved. In the high-temperature period in summer or in some high-voltage motors with higher operating environment temperature, the bearings are reliably cooled in operation, the service life of the bearings is ensured, and the reliable operation of equipment is ensured.
The left side and the right side of a fan box on the fan side of the high-voltage motor are provided with holes, two galvanized pipes are arranged along the two sides of the motor to the two sides of a bearing, the tail end of the galvanized pipe adopts a conical ventilation hole to increase the air outlet pressure, cooling air generated by a motor cooling air box 4 is used for blowing and cooling a motor load bearing 5, and the effect of reducing the temperature of the bearing is achieved.
Two galvanized pipes are additionally arranged on the two sides of the motor along the axial direction to form a cooling air pipe 2, the cooling air pipe is connected through a right-angled elbow 3, the cooling air pipe directly blows air to the motor load bearing 5 for cooling, and the tail end of the cooling air pipe 2 is provided with a conical air outlet to increase air outlet pressure. The diameter range of the cooling air pipe is 60mm-80 mm. Preferably DN76 galvanized pipe with an outer diameter of 76 mm.
Claims (9)
1. An automatic cooling device for a motor bearing is characterized by comprising a cooling air box (4) and a cooling air pipe (2);
the cooling wind box (4) is arranged on the non-load side of the motor (1); a through hole is formed in the shell of the cooling air box (4), and an air inlet of the cooling air pipe (2) is connected with the through hole of the cooling air box (4); the air outlet of the cooling air pipe (2) points to the load bearing (5) of the motor (1).
2. The automatic motor bearing cooling device as claimed in claim 1, wherein the outlet of the cooling air duct (2) is tapered.
3. The automatic motor bearing cooling device as claimed in claim 1, wherein the through holes of the cooling air boxes (4) are symmetrically arranged on two sides of the housing, the air inlets of the cooling air pipes (2) are respectively and symmetrically connected with the through holes of the cooling air boxes (4), and the air outlets of the cooling air pipes (2) are symmetrically directed to two sides of the load bearing (5).
4. The automatic cooling device for the motor bearing is characterized in that a flange is arranged at the through hole connecting part of the cooling air pipe (2) and the cooling air box (4) and is connected with the flange through a bolt.
5. The automatic motor bearing cooling device as claimed in claim 1, characterized in that the cooling air duct (2) is provided with a right-angled bend (3) at the bend.
6. The automatic motor bearing cooling device as claimed in claim 5, characterized in that the cooling air pipe (2) is connected with the elbow bend (3) by a screw thread.
7. The automatic cooling device for the motor bearing according to claim 6, characterized in that the threaded connection part of the cooling air pipe (2) and the elbow bend (3) is provided with a thread seal tape.
8. The automatic motor bearing cooling device as claimed in claim 1, wherein the diameter of the cooling air pipe (2) is in the range of 60mm-80 mm.
9. The automatic motor bearing cooling device as claimed in claim 1, wherein the cooling air duct (2) is a galvanized duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022761381.9U CN213990419U (en) | 2020-11-25 | 2020-11-25 | Motor bearing automatic cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022761381.9U CN213990419U (en) | 2020-11-25 | 2020-11-25 | Motor bearing automatic cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213990419U true CN213990419U (en) | 2021-08-17 |
Family
ID=77266216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022761381.9U Withdrawn - After Issue CN213990419U (en) | 2020-11-25 | 2020-11-25 | Motor bearing automatic cooling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213990419U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114688173A (en) * | 2022-03-16 | 2022-07-01 | 佳木斯电机股份有限公司 | Detachable bearing cooling device |
-
2020
- 2020-11-25 CN CN202022761381.9U patent/CN213990419U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114688173A (en) * | 2022-03-16 | 2022-07-01 | 佳木斯电机股份有限公司 | Detachable bearing cooling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20210817 Effective date of abandoning: 20231212 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20210817 Effective date of abandoning: 20231212 |