CN214850769U - Oil leakage prevention structure for main shaft of permanent magnet synchronous motor - Google Patents
Oil leakage prevention structure for main shaft of permanent magnet synchronous motor Download PDFInfo
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- CN214850769U CN214850769U CN202121140686.6U CN202121140686U CN214850769U CN 214850769 U CN214850769 U CN 214850769U CN 202121140686 U CN202121140686 U CN 202121140686U CN 214850769 U CN214850769 U CN 214850769U
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Abstract
The utility model discloses a PMSM main shaft leak protection oil structure relates to leak protection oil bearing technical field, has solved current when the high-speed operation of motor, and the lubricating grease who throws away from bearing department leaks the organism local problem everywhere through seal ring and adapting unit seam crossing easily. An oil leakage prevention structure of a permanent magnet synchronous motor spindle comprises a sealing sheet; the middle part of the sealing piece is fixedly connected to the side surface of the bearing inner sleeve. Lubricating grease that the motor spindle rotates to throw away can be blockked by the gasket to the inside or the seepage that the device can not be thrown away to the grease, and get rid of the grease on the gasket under the high-speed pivoted centrifugal force effect of motor, can use through the outside of throwing away the oil separation blade and throwing into the bearing ball again to the right slope, and convenient nimble, and sealed stifled ring can block the inside of external dust entering device, has kept motor operational environment clean and tidy, makes motor durable.
Description
Technical Field
The utility model belongs to the technical field of the motor, in particular to PMSM main shaft leak protection oil structure.
Background
The permanent magnet synchronous motor provides excitation by the permanent magnet, so that the structure of the motor is simpler, the processing and assembling cost is reduced, a collecting ring and an electric brush which are easy to cause problems are omitted, and the running reliability of the motor is improved; and because excitation current is not needed, excitation loss is avoided, and the efficiency and the power density of the motor are improved.
The existing permanent magnet synchronous motor spindle bearing is lubricated by solid grease, when the motor runs at a high speed, the lubricating grease thrown out from the bearing is easy to leak to the body everywhere through a sealing ring and a joint of a connecting part, the environment is polluted, meanwhile, dust enters the bearing and easily blocks the lubrication of the bearing, the running resistance of the motor is increased, and the practicability is not high.
Therefore, it is urgently needed to provide an oil leakage prevention structure for a permanent magnet synchronous motor spindle to solve the problems in the prior art.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a PMSM main shaft leak protection oil structure.
The utility model discloses PMSM main shaft leak protection oil structure's purpose and efficiency are reached by following concrete technical means:
a permanent magnet synchronous motor spindle oil leakage prevention structure comprises a bearing outer sleeve, a bearing inner sleeve, bearing balls and sealing pieces; the bearing outer sleeve is fixedly connected inside the motor shell; the inner part of the bearing inner sleeve is fixedly connected with a motor main shaft; the bearing balls are connected with the inner part between the bearing outer sleeve and the bearing inner sleeve in a rolling way; the middle part of the sealing piece is fixedly connected to the side surface of the bearing inner sleeve.
Further, the gasket is equipped with two, and the gasket setting is in the both sides of bearing inner race, and the lamellar body of gasket is equipped with sealed stifled ring, and sealed stifled ring rotation is in the inside of bearing outer race.
Furthermore, fifteen countercurrent baffle plates are uniformly distributed in the sealing sheet body.
Furthermore, the two sides of the sheet body of the countercurrent baffle are provided with an oil scraping baffle and an oil throwing baffle, the oil scraping baffle is positioned on the front side of the oil throwing baffle, the oil scraping baffle tilts to the left by forty-five degrees, and the oil throwing baffle tilts to the right by forty-five degrees.
Furthermore, the middle part of the countercurrent baffle is provided with a communication baffle, and three communication grooves are formed in the plate body of the communication baffle.
Compared with the prior art, the utility model discloses following beneficial effect has:
at first, the lubricating grease who throws away when motor spindle rotates can be blockked by the gasket to the grease can not throw away the inside or the seepage of device, and get rid of the grease on the gasket under the high-speed pivoted centrifugal force effect of motor, can throw away the outside of getting rid of the bearing ball again through the oil separation blade of throwing away to the right slope and use, and convenient nimble, and sealed stifled ring can block the inside of external dust entering device, the clean and tidy of motor operational environment has been kept, make motor durable, the practicality and the stability of the device have been improved.
Secondly, when motor spindle rotated, can drive the bearing endotheca and rotate, the bearing endotheca drives the synchronous rotation of gasket to can collect the useless lubricating grease of dissociating between bearing overcoat and bearing endotheca through the oil scraping separation blade to the left bank, the lubricating grease after the collection can get into the medial surface of getting rid of the oil separation blade through the UNICOM groove of UNICOM baffle and be thrown into the outside of bearing ball again and lubricate the use, and is functional strong, has improved the device's flexibility and adaptability.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view after the disassembly of the present invention.
Fig. 3 is a schematic structural diagram of the sealing piece of the present invention.
Fig. 4 is a schematic structural view of the reverse flow blocking piece of the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. a bearing housing; 2. a bearing inner sleeve; 3. a bearing ball; 4. sealing the sheet; 5. a motor spindle; 401. sealing the plugging ring; 402. a reverse flow baffle plate; 4021. an oil scraping baffle plate; 4022. an oil throwing baffle plate; 4023. a communicating baffle; 4024. a communicating groove.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Example (b):
as shown in figures 1 to 4:
the utility model provides an oil leakage prevention structure of a permanent magnet synchronous motor main shaft, which comprises a bearing outer sleeve 1, a bearing inner sleeve 2, bearing balls 3 and a sealing sheet 4; the bearing outer sleeve 1 is fixedly connected inside the motor shell; a motor spindle 5 is fixedly connected inside the bearing inner sleeve 2; the bearing ball 3 is connected with the inner part between the bearing outer sleeve 1 and the bearing inner sleeve 2 in a rolling way; the middle part of the sealing sheet 4 is fixedly connected with the side surface of the bearing inner sleeve 2; the sealing sheets 4 are arranged on two sides of the bearing inner sleeve 2, the sealing sheets 4 are arranged on two sides of the bearing inner sleeve, the sealing blocking rings 401 are arranged on sheet bodies of the sealing sheets 4, and the sealing blocking rings 401 rotate inside the bearing outer sleeve 1, so that the sealing blocking rings 401 can block external dust from entering the inside of the device, the cleanness of the running environment of the motor is kept, the motor is durable, and the practicability and the stability of the device are improved; the inside fifteen piece separation blades 402 against current that is equipped with evenly distributed of lamellar body of sealing fin 4, this design makes against current separation blade 402 can collect the inside grease of bearing and get rid of the outside reuse of bearing ball 3, avoids the grease to throw away the inside phenomenon of device and takes place, has improved the device's flexibility.
Wherein, the lamellar body both sides of separation blade 402 are equipped with oil scraping separation blade 4021 and get rid of oil separation blade 4022 against the current, and oil scraping separation blade 4021 is located the front side of getting rid of oil separation blade 4022, oil scraping separation blade 4021 is forty-five degrees to the left bank, and get rid of oil separation blade 4022 and incline forty-five degrees right, this design makes the lubricating grease that gets rid of when motor spindle 5 rotates can be blockked by gasket 4, thereby the inside or the seepage of device can not be got rid of to the grease, and get rid of the grease on gasket 4 under the high-speed pivoted centrifugal force effect of motor, can get rid of the outside of getting rid of bearing ball 3 again through the oil separation blade 4022 that gets rid of to the right bank, and is convenient and flexible, and the practicality and the flexibility of the device are improved.
Wherein, the middle part of separation blade 402 is equipped with UNICOM baffle 4023 against the current, and UNICOM baffle 4023's the inside three UNICOM groove 4024 of having seted up of plate body, this design makes when motor spindle 5 rotates, can drive bearing endotheca 2 and rotate, bearing endotheca 2 drives the synchronous rotation of gasket 4, thereby can will dissociate the useless lubricating grease collection between bearing overcoat 1 and bearing endotheca 2 through the oil scraping separation blade 4021 to the left bank, the lubricating grease after the collection can get into the medial surface of getting rid of oil separation blade 4022 through UNICOM groove 4024 of UNICOM baffle 4023 and is thrown into bearing ball 3's outside again and lubricate the use, and is functional strong, and the flexibility and the adaptability of the device are improved.
The specific use mode and function of the embodiment are as follows:
the utility model discloses in, when PMSM is when using, the lubricating grease that 5 rotations of motor spindle were thrown away can be blockked by gasket 4, thereby the inside or the seepage of device can not be thrown away to the grease, and get rid of the grease on gasket 4 under the high-speed pivoted centrifugal force effect of motor, can use through the outside of throwing away oil separation blade 4022 of right slope and throwing into bearing ball 3 again, it is convenient nimble, and sealed stifled ring 401 can block the inside of external dust access device, motor operational environment's clean and tidy has been kept, make motor durable, and when motor spindle 5 rotates, can drive bearing endotheca 2 and rotate, bearing endotheca 2 drives gasket 4 synchronous rotation, thereby can will dissociate the useless lubricating grease between bearing overcoat 1 and bearing endotheca 2 through the oil separation blade 4021 of scraping to the left slope, the lubricating grease after the collection can get into the medial surface of throwing away oil separation blade 4022 through the UNICOM groove 4024 of UNICOM baffle 4023 and get rid of again and get rid of the medial surface of getting into oil separation blade 4022 The outside of the bearing ball 3 is used for lubrication, and the functionality is strong.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (5)
1. The utility model provides a PMSM main shaft leak protection oil structure which characterized in that: comprises a bearing outer sleeve (1), a bearing inner sleeve (2), bearing balls (3) and a sealing sheet (4); the bearing outer sleeve (1) is fixedly connected inside the motor shell; a motor spindle (5) is fixedly connected inside the bearing inner sleeve (2); the bearing balls (3) are connected with the inner part between the bearing outer sleeve (1) and the bearing inner sleeve (2) in a rolling way; the middle part of the sealing sheet (4) is fixedly connected with the side surface of the bearing inner sleeve (2).
2. The permanent magnet synchronous motor spindle oil leakage prevention structure of claim 1, characterized in that: the sealing piece (4) is equipped with two, and sealing piece (4) set up the both sides in bearing inner race (2), and the lamellar body of sealing piece (4) is equipped with sealed stifled ring (401), and sealed stifled ring (401) rotate the inside at bearing outer cover (1).
3. The permanent magnet synchronous motor spindle oil leakage prevention structure of claim 1, characterized in that: fifteen countercurrent baffle plates (402) are uniformly distributed in the sealing sheet body (4).
4. The permanent magnet synchronous motor spindle oil leakage prevention structure of claim 3, wherein: the two sides of the sheet body of the countercurrent baffle (402) are provided with an oil scraping baffle (4021) and an oil throwing baffle (4022), the oil scraping baffle (4021) is positioned on the front side of the oil throwing baffle (4022), the oil scraping baffle (4021) inclines for forty-five degrees to the left, and the oil throwing baffle (4022) inclines for forty-five degrees to the right.
5. The permanent magnet synchronous motor spindle oil leakage prevention structure of claim 3, wherein: the middle part of the countercurrent baffle (402) is provided with a communicating baffle (4023), and three communicating grooves (4024) are formed in the plate body of the communicating baffle (4023).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121140686.6U CN214850769U (en) | 2021-05-26 | 2021-05-26 | Oil leakage prevention structure for main shaft of permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121140686.6U CN214850769U (en) | 2021-05-26 | 2021-05-26 | Oil leakage prevention structure for main shaft of permanent magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214850769U true CN214850769U (en) | 2021-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121140686.6U Active CN214850769U (en) | 2021-05-26 | 2021-05-26 | Oil leakage prevention structure for main shaft of permanent magnet synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214850769U (en) |
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2021
- 2021-05-26 CN CN202121140686.6U patent/CN214850769U/en active Active
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