CN213125771U - Oil cooling structure for motor bearing of air compressor - Google Patents
Oil cooling structure for motor bearing of air compressor Download PDFInfo
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- CN213125771U CN213125771U CN202022024648.6U CN202022024648U CN213125771U CN 213125771 U CN213125771 U CN 213125771U CN 202022024648 U CN202022024648 U CN 202022024648U CN 213125771 U CN213125771 U CN 213125771U
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- bearing
- oil
- air compressor
- end cover
- motor
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Abstract
The utility model provides an air compressor machine motor bearing oil cooling structure, motor shaft tip set up the bearing, and the bearing inboard sets up the bearing cap, and the bearing outside sets up the end cover, is provided with the bearing oil cooling runner with bearing ball intercommunication on the end cover, and the cooling runner links to each other with outside cooling system. An inner spiral sleeve and an oil seal are arranged in the bearing cover. An outer spiral sleeve and an oil seal are arranged in the end cover. The bearing cover and the end cover are in butt joint and fastened through bolts, and a sealing ring is arranged at the butt joint face. This scheme adopts the bearing oil cooling both to guarantee the effective lubrication of bearing and reduced the operating temperature of bearing, the effectual life who improves the bearing.
Description
Technical Field
The utility model relates to a novel cold structure of motor bearing oil, especially an air compressor machine motor bearing oil cold structure.
Background
The lubricating of motor bearing of air compressor trade in the existing market adopts grease lubrication basically, the temperature of motor working environment is more than 60 ℃, so the bearing temperature is high, the bearing needs to be maintained by filling bearing grease in about 1000 hours, if the bearing is not maintained effectively, the service life of the bearing is shortened, the service life of the whole motor is shortened, and the whole service life of the whole air compressor equipment is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the problem that exists among the prior art is overcome, an air compressor machine motor bearing oil cooling structure is provided.
In order to solve the above problems, the technical solution of the present invention is as follows:
the utility model provides an air compressor machine motor bearing oil cooling structure, motor shaft tip sets up the bearing, and the bearing inboard sets up the bearing cap, and the bearing outside sets up the end cover, is provided with the bearing oil cooling runner with bearing ball intercommunication on the end cover, and the cooling runner links to each other with outside cooling system.
An inner spiral sleeve and an oil seal are arranged in the bearing cover.
An outer spiral sleeve and an oil seal are arranged in the end cover.
The bearing cover and the end cover are in butt joint and fastened through bolts, and a sealing ring is arranged at the butt joint face.
The cooling flow channel is provided with an inlet and an outlet, the outlet is connected with a screw pump, the screw pump is connected with an oil-gas separator, the oil-gas separator is connected with an oil cooler, the oil cooler is connected with a filter, and the filter is connected with the inlet to form cooling circulation.
Has the advantages that: the utility model discloses a bearing oil cooling has both guaranteed the effective lubrication of bearing and has reduced the operating temperature of bearing, the effectual life who improves the bearing.
Drawings
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments;
fig. 1 is the air compressor machine motor bearing oil cooling schematic structure.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.
Referring to fig. 1, the air compressor motor bearing oil cooling structure is characterized in that a bearing 1 is arranged at the end part of a motor shaft, a bearing cover 2 is arranged on the inner side of the bearing, an end cover 3 is arranged on the outer side of the bearing, a bearing oil cooling flow passage 4 communicated with bearing balls is arranged on the end cover, and the cooling flow passage is connected with an external cooling system.
An inner spiral sleeve and an oil seal 22 are arranged in the bearing cover 2, and grease 23 is arranged in the oil seal 22.
An external screw sleeve 31 and an oil seal 32 are arranged in the end cover 3, and grease 33 is arranged in the oil seal 32.
The bearing cover 2 and the end cover 3 are butted and fastened through bolts, and a sealing ring 34 is arranged at the butt joint surface.
The cooling flow channel is provided with an inlet and an outlet, the outlet is connected with a screw pump, the screw pump is connected with an oil-gas separator, the oil-gas separator is connected with an oil cooler, the oil cooler is connected with a filter, and the filter is connected with the inlet to form cooling circulation. The screw pump is a power source of the cooling system, and the motor is a power source of the screw pump.
The bearing lubricating oil of the structure is lubricated by oil from a screw pump (head), when a motor runs, the oil of the screw pump (head) of the air compressor enters a front end cover 3 through an oil inlet pipe joint, and then flows out from an oil outlet pipe joint after passing through a bearing 1, but the oil from the screw pump (head) has certain pressure, and if the structure of a bearing chamber is not protected, oil leakage is easily caused; therefore, the structure is that the outer surface of the outer spiral sleeve 31 is made into a right-handed thread tooth shape, the outer surface of the inner spiral sleeve 21 is made into a left-handed thread tooth shape, double oil seals are added outside a bearing chamber of the front end cover 3 for sealing, proper amount of grease is added between the double oil seals, on one hand, the grease can lubricate the oil seals, on the other hand, the grease can secondarily block the bearing oil, the double oil seals are also added on the bearing cover 2 for sealing, and proper amount of grease is also added between the double oil seals; when the motor rotates forwards (the motor runs anticlockwise when standing in front of the output shaft of the motor), oil of the screw pump (head) enters the bearing chamber of the front end cover through the oil inlet pipe and reaches the bearing, the outer spiral sleeve also rotates forwards, right-handed thread teeth on the outer spiral sleeve form a reverse direction, the oil flowing through the bearing is rotated to the direction of the bearing, and a reverse thrust is formed on the other hand, so that the pressure of the oil of the screw pump (head) can be effectively reduced, and the pressure reaching the oil seal part of the front end cover is reduced; the inner spiral sleeve also rotates forwards, the left-handed thread teeth on the inner spiral sleeve also form a reverse direction, the oil flowing through the bearing is rotated to the direction of the bearing, a reverse thrust is also formed, the pressure of the oil of the screw pump (head) is effectively reduced, and the pressure reaching the oil seal part of the bearing cover is smaller; the joint of the bearing cap and the front end cap is sealed by an O-shaped ring 34. The bearing oil cooling is adopted, so that the effective lubrication of the bearing is ensured, the running temperature of the bearing is reduced, and the service life of the bearing is effectively prolonged.
By adopting the bearing oil for cooling, the effective lubrication of the bearing is ensured, the operating temperature of the bearing is reduced, and the service life of the bearing is effectively prolonged.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides an air compressor machine motor bearing oil cooling structure, motor shaft tip sets up the bearing, characterized by, and the bearing inboard sets up the bearing cap, and the bearing outside sets up the end cover, is provided with the bearing oil cooling runner with bearing ball intercommunication on the end cover, and the cooling runner links to each other with outside cooling system.
2. The oil cooling structure for the bearing of the motor of the air compressor as claimed in claim 1, wherein an inner screw sleeve and an oil seal are provided in the bearing cap.
3. The oil cooling structure for the bearing of the motor of the air compressor as claimed in claim 1, wherein an external screw sleeve and an oil seal are arranged in the end cover.
4. The oil cooling structure for the bearing of the motor of the air compressor as claimed in claim 1, wherein the bearing cap and the end cap are fastened by butt joint through bolts, and a sealing ring is arranged at the butt joint face.
5. The oil cooling structure for the bearing of the motor of the air compressor as claimed in claim 1, wherein the cooling flow passage is provided with an inlet and an outlet, the outlet is connected with a screw pump, the screw pump is connected with an oil-gas separator, the oil-gas separator is connected with an oil cooler, the oil cooler is connected with a filter, and the filter is connected with the inlet to form a cooling cycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022024648.6U CN213125771U (en) | 2020-09-15 | 2020-09-15 | Oil cooling structure for motor bearing of air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022024648.6U CN213125771U (en) | 2020-09-15 | 2020-09-15 | Oil cooling structure for motor bearing of air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213125771U true CN213125771U (en) | 2021-05-04 |
Family
ID=75662692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022024648.6U Active CN213125771U (en) | 2020-09-15 | 2020-09-15 | Oil cooling structure for motor bearing of air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213125771U (en) |
-
2020
- 2020-09-15 CN CN202022024648.6U patent/CN213125771U/en active Active
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