CN114598089B - Motor lubrication cooling structure for vacuum pump - Google Patents
Motor lubrication cooling structure for vacuum pump Download PDFInfo
- Publication number
- CN114598089B CN114598089B CN202011430368.3A CN202011430368A CN114598089B CN 114598089 B CN114598089 B CN 114598089B CN 202011430368 A CN202011430368 A CN 202011430368A CN 114598089 B CN114598089 B CN 114598089B
- Authority
- CN
- China
- Prior art keywords
- bearing
- motor
- lubricant
- distal
- lubrication channel
- Prior art date
- 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.)
- Active
Links
- 238000005461 lubrication Methods 0.000 title claims abstract description 53
- 238000001816 cooling Methods 0.000 title claims abstract description 16
- 230000001050 lubricating effect Effects 0.000 claims abstract description 11
- 239000000314 lubricant Substances 0.000 claims description 71
- 238000011144 upstream manufacturing Methods 0.000 claims description 24
- 238000007789 sealing Methods 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 10
- 238000004382 potting Methods 0.000 claims description 9
- 239000011521 glass Substances 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 4
- 239000003921 oil Substances 0.000 abstract description 9
- 238000005299 abrasion Methods 0.000 abstract description 4
- 239000010687 lubricating oil Substances 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 3
- 238000005245 sintering Methods 0.000 description 5
- 239000000945 filler Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C37/00—Cooling of bearings
- F16C37/007—Cooling of bearings of rolling bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N1/00—Constructional modifications of parts of machines or apparatus for the purpose of lubrication
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2210/00—Applications
- F16N2210/14—Bearings
Abstract
The invention belongs to the technical field of vacuum pumps, and particularly relates to a motor lubrication cooling structure for a vacuum pump. The motor comprises a near-end bearing lubrication channel and a far-end bearing lubrication channel, wherein the near-end bearing lubrication channel is arranged in a front end cover, the front end cover is arranged at the front end of a motor shell, and the near-end bearing lubrication channel is used for lubricating a near-end support bearing arranged in the front end cover; the far-end bearing lubrication channel is an annular channel extending from the front end to the rear end of the motor shell and is used for lubricating a far-end support bearing arranged at the bottom of the motor shell; the near-end bearing lubrication channel and the far-end bearing lubrication channel are communicated with an oil supply system positioned at the front end of the motor shell. The invention is convenient for lubricating the supporting bearing of the driving motor, obviously reduces the abrasion of the bearing and the motor shaft, ensures the normal operation of the driving motor, prolongs the service life of the driving motor, can realize the recovery of lubricating oil, and plays the roles of saving resources and reducing cost.
Description
Technical Field
The invention belongs to the technical field of vacuum pumps, and particularly relates to a motor lubrication cooling structure for a vacuum pump.
Background
The transmission system of the motor is generally of a front bearing structure and a rear bearing structure, and in the using process of the motor, if the internal bearings of the driving motor cannot be lubricated in time, the internal bearings of the driving motor are easy to lose efficacy due to collision, damage, rust, abrasion and the like, and the normal operation and the service life of the driving motor are further affected.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a motor lubrication and cooling structure for a vacuum pump, which ensures normal operation of a driving motor and prolongs the service life.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the motor lubrication cooling structure for the vacuum pump comprises a near-end bearing lubrication channel and a far-end bearing lubrication channel, wherein the near-end bearing lubrication channel is arranged in a front end cover, the front end cover is arranged at the front end of a motor shell, and the near-end bearing lubrication channel is used for lubricating a near-end support bearing arranged in the front end cover;
the far-end bearing lubrication channel is an annular channel extending from the front end to the rear end of the motor shell and is used for lubricating a far-end support bearing arranged at the bottom of the motor shell;
the proximal bearing lubrication channel and the distal bearing lubrication channel are both in communication with a lubricant supply system located at a front end of the motor housing.
The near-end bearing lubrication channel comprises a near-end bearing lubricant upstream path and a near-end bearing lubricant downstream path which are respectively positioned at two sides of the near-end support bearing, one ends of the near-end bearing lubricant upstream path and the near-end bearing lubricant downstream path are communicated with the lubricant supply system, and the other ends of the near-end bearing lubricant upstream path and the near-end bearing lubricant downstream path respectively correspond to two sides of the near-end support bearing.
The distal bearing lubrication channel includes a distal bearing lubricant upstream path and a distal bearing lubricant downstream path on both sides of the distal support bearing; one end of the remote bearing lubricant upstream path and one end of the remote bearing lubricant downstream path are communicated with the lubricant supply system, and the other end of the remote bearing lubricant upstream path and one end of the remote bearing lubricant downstream path penetrate through the motor stator and potting materials positioned on two sides of the motor stator to respectively correspond to two sides of the remote support bearing.
The distal bearing lubricant upstream path and the distal bearing lubricant downstream path are disposed proximate the motor housing.
The near-end support bearing and the far-end support bearing are used for supporting a motor rotor shaft, and a motor rotor is arranged on the motor rotor shaft.
Oil throwers are arranged at two ends of the supporting motor rotor shaft, one oil thrower is positioned between the near-end supporting bearing and the motor rotor, and the other oil thrower is positioned between the far-end supporting bearing and the motor rotor; the oil slinger is used to sling lubricant onto the potting material during operation, thereby removing heat.
The motor comprises a motor shell, and is characterized in that a vacuum wiring structure is arranged on the outer side of the motor shell and comprises a wiring terminal, a vacuum sealing wiring board and a wiring box, wherein the vacuum sealing wiring board is in sealing connection with the motor shell, and the wiring box is arranged on the outer side of the vacuum sealing wiring board; the binding post penetrates through the vacuum sealing wiring board, one end of the binding post is located in the wiring box, and the other end of the binding post is located in the motor shell.
Glass sintering filling is arranged between the binding post and the vacuum sealing wiring board.
The invention has the advantages and beneficial effects that:
the motor lubrication cooling structure for the vacuum pump provided by the invention is convenient for lubricating the support bearing of the driving motor, obviously reduces the abrasion of the bearing and the motor shaft, ensures the normal operation of the driving motor, prolongs the service life of the driving motor, can realize the recovery of lubricating oil, and plays a role in saving resources and reducing cost.
Drawings
FIG. 1 is a schematic diagram of a motor lubrication and cooling structure for a vacuum pump according to the present invention;
FIG. 2 is a schematic view of the structure of the lubrication channel of the proximal bearing of the present invention;
fig. 3 is a schematic view of a vacuum wiring structure in the present invention.
In the figure: 1 is a motor lubricant inlet, 2 is a proximal bearing lubricant upstream path, 3 is a proximal bearing lubricant downstream path, 4 is a proximal lubricant outlet, 5 is a distal bearing lubricant outlet, 6 is a distal bearing lubricant inlet, 7 is a proximal support bearing, 8 is a sleeve, 9 is a disc, 10 is a motor rotor shaft, 11 is a distal support bearing, 12 is a distal bearing lubricant upstream path, 13 is a distal bearing lubricant downstream path, 14 is a potting material, 15 is a motor housing, 16 is a front end cover, 17 is a motor stator, 18 is a terminal, 19 is a connecting screw, 20 is a glass frit filler, 21 is a rubber ring, 22 is a vacuum seal terminal block, 23 is a terminal block, and 24 is an external connection area.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and 2, the motor lubrication cooling structure for a vacuum pump provided by the invention comprises a proximal bearing lubrication channel and a distal bearing lubrication channel, wherein the proximal bearing lubrication channel is arranged in a front end cover 16, the front end cover 16 is arranged at the front end of a motor housing 15, and the proximal bearing lubrication channel is used for lubricating a proximal support bearing 7 arranged in the front end cover 16; the far-end bearing lubrication channel is an annular channel extending from the front end to the rear end of the motor housing 15, and is used for lubricating a far-end support bearing 11 arranged at the bottom of the motor housing 15; the proximal bearing lubrication channel and the distal bearing lubrication channel are both in communication with a lubricant supply system located at the front end of the motor housing 15.
In this embodiment, the proximal support bearing 7 and the distal support bearing 11 are used for supporting the motor rotor shaft 10, the motor rotor shaft 10 is supported, a motor stator 17 corresponding to the motor rotor is arranged in the motor housing 15, and potting material 14 is arranged on two sides of the motor stator 17.
Two ends of the supporting motor rotor shaft 10 are provided with oil throwers 9, wherein one oil thrower 9 is positioned between the proximal supporting bearing 7 and the motor rotor, and the other oil thrower 9 is positioned between the distal supporting bearing 11 and the motor rotor; the oil slinger 9 serves to sling lubricant onto the potting material 14 during operation, thereby taking heat away.
As shown in fig. 1-2, in the embodiment of the present invention, the proximal bearing lubrication channel includes a proximal bearing lubricant upstream path 2 and a proximal bearing lubricant downstream path 3 on both sides of the proximal support bearing 7, and one end of each of the proximal bearing lubricant upstream path 2 and the proximal bearing lubricant downstream path 3 is in communication with the lubricant supply system, and the other end corresponds to both sides of the proximal support bearing 7, respectively.
As shown in fig. 1, in an embodiment of the present invention, the distal bearing lubrication channel includes a distal bearing lubricant upstream path 12 and a distal bearing lubricant downstream path 13 on either side of the distal support bearing 11; one end of the distal bearing lubricant upstream path 12 and one end of the distal bearing lubricant downstream path 13 are both communicated with the lubricant supply system, and the other end passes through the motor stator 17 and potting material 14 located on both sides of the motor stator 17 respectively correspond to both sides of the distal support bearing 11.
Further, the distal bearing lubricant upstream path 12 and the distal bearing lubricant downstream path 13 are disposed proximate to the motor housing 15.
The lubricant supply system supplies lubricant to the proximal support bearing 7 through the proximal bearing lubricant upstream path 2 and returns to the lubricant supply system through the proximal bearing lubricant downstream path 3; the lubricant supply system supplies lubricant to the distal support bearing 11 through a distal bearing lubricant upstream path 12 and returns to the lubricant supply system through a distal bearing lubricant downstream path 13.
The proximal bearing lubrication channel and the distal bearing lubrication channel are also annular heat conduction paths to form a heat conduction path between the stationary and rotating components of the motor, the heat conduction paths providing lubricant supporting the bearings, the lubricant flowing from an upstream lubricant path to a downstream lubricant path for purposes of reducing the bearing temperature. The rotating member can lubricate the bearing at the initial stage of rotation.
In this embodiment, the potting material 14 is epoxy resin, and has an inner diameter equal to the inner diameter of the motor stator core in structure, wherein the equal refers to filling the inner wall of the casing within the range of the axial region of the motor stator core. The motor coil is fixed, insulated and shielded from external air and foreign matters, and influences the winding.
On the basis of the above embodiment, the motor outlet of the motor housing 15 is provided with the vacuum wiring structure, which includes the terminal 18, the vacuum sealing terminal 22 and the terminal box 23, wherein the vacuum sealing terminal 22 is connected with the motor housing 15 in a sealing manner, the terminal box 23 is disposed on the vacuum sealing terminal 22, one end of the terminal 18 passing through the vacuum sealing terminal 22 is located in the terminal box 23, and the other end is located in the motor housing 15.
Further, a glass sintering filler 20 is arranged between the binding post 18 and a vacuum sealing wiring board 23, the glass sintering filler 20 plays an insulating role, the material and the structure of the glass sintering filler play a role in vacuum sealing together, the glass is sintered to the gap between the binding post 18 and the vacuum sealing wiring board 22, so that an external lead is isolated from an internal lead, the vacuum sealing wiring board 22 is provided with a rubber ring 21 structure, and the vacuum sealing wiring board is fixedly connected with the motor housing 15 through a fixedly connected screw 19, so that the vacuum sealing role is played. The purpose of glass sintering is to provide lubrication and cooling of the motor in a vacuum environment.
The motor lubrication cooling structure for the vacuum pump provided by the invention is convenient for lubricating the support bearing of the driving motor, obviously reduces the abrasion of the bearing and the motor shaft, ensures the normal operation of the driving motor, prolongs the service life of the driving motor, can realize the recovery of lubricating oil, and plays a role in saving resources and reducing cost.
The foregoing is merely an embodiment of the present invention and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, expansion, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.
Claims (5)
1. A motor lubrication cooling structure for a vacuum pump, characterized by comprising a proximal bearing lubrication channel and a distal bearing lubrication channel, wherein the proximal bearing lubrication channel is arranged in a front end cover (16), the front end cover (16) is arranged at the front end of a motor shell (15), and the proximal bearing lubrication channel is used for lubricating a proximal support bearing (7) arranged in the front end cover (16);
the far-end bearing lubrication channel is an annular channel extending from the front end to the rear end of the motor shell (15), and is used for lubricating a far-end support bearing (11) arranged at the bottom of the motor shell (15);
the proximal bearing lubrication channel and the distal bearing lubrication channel are both in communication with a lubricant supply system located at the front end of the motor housing (15);
the near-end bearing lubrication channel comprises a near-end bearing lubricant upstream path (2) and a near-end bearing lubricant downstream path (3) which are respectively positioned at two sides of the near-end support bearing (7), one ends of the near-end bearing lubricant upstream path (2) and the near-end bearing lubricant downstream path (3) are communicated with the lubricant supply system, and the other ends of the near-end bearing lubricant upstream path and the near-end bearing lubricant downstream path are respectively corresponding to two sides of the near-end support bearing (7);
the distal bearing lubrication channel comprises a distal bearing lubricant upstream path (12) and a distal bearing lubricant downstream path (13) on either side of the distal support bearing (11); one end of the remote bearing lubricant upstream path (12) and one end of the remote bearing lubricant downstream path (13) are communicated with the lubricant supply system, and the other end of the remote bearing lubricant upstream path passes through the motor stator (17) and potting materials (14) positioned at two sides of the motor stator (17) to respectively correspond to two sides of the remote support bearing (11);
the distal bearing lubricant upstream path (12) and the distal bearing lubricant downstream path (13) are disposed proximate the motor housing (15).
2. Motor lubrication and cooling structure for a vacuum pump according to claim 1, characterized in that the proximal support bearing (7) and the distal support bearing (11) are used for supporting a motor rotor shaft (10), on which motor rotor shaft (10) a motor rotor is arranged.
3. Motor lubrication and cooling structure for a vacuum pump according to claim 2, characterized in that both ends of the motor rotor shaft (10) are provided with oil slingers (9), wherein one oil slinger (9) is located between the proximal support bearing (7) and the motor rotor and the other oil slinger (9) is located between the distal support bearing (11) and the motor rotor; the oil slinger (9) is used to sling lubricant onto the potting material (14) during operation, thereby removing heat.
4. The motor lubrication and cooling structure for a vacuum pump according to claim 1, wherein a vacuum wiring structure is provided on an outer side of the motor housing (15), the vacuum wiring structure including a wiring terminal (18), a vacuum sealing wiring board (22) and a wiring box (23), wherein the vacuum sealing wiring board (22) is hermetically connected with the motor housing (15), and the wiring box (23) is provided on an outer side of the vacuum sealing wiring board (22); the terminal (18) passes through the vacuum sealing terminal block (22) and has one end located within a terminal box (23) and the other end located within the motor housing (15).
5. Motor lubrication and cooling structure for vacuum pumps according to claim 4, characterized in that a glass frit filling (20) is provided between the terminal post (18) and the vacuum sealing terminal plate (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011430368.3A CN114598089B (en) | 2020-12-07 | 2020-12-07 | Motor lubrication cooling structure for vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011430368.3A CN114598089B (en) | 2020-12-07 | 2020-12-07 | Motor lubrication cooling structure for vacuum pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114598089A CN114598089A (en) | 2022-06-07 |
| CN114598089B true CN114598089B (en) | 2024-01-30 |
Family
ID=81802667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011430368.3A Active CN114598089B (en) | 2020-12-07 | 2020-12-07 | Motor lubrication cooling structure for vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114598089B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107795835A (en) * | 2017-11-22 | 2018-03-13 | 贵州智慧能源科技有限公司 | High-speed electric expreess locomotive oil lubrication structure |
| CN109560655A (en) * | 2017-09-27 | 2019-04-02 | 天津市松正电动汽车技术股份有限公司 | A kind of motor bearing lubricating structure |
| JP2020010575A (en) * | 2018-07-12 | 2020-01-16 | 株式会社日立製作所 | Rotary electric machine and drive system of rotary electric machine and railway vehicle |
| CN111120389A (en) * | 2019-12-30 | 2020-05-08 | 西安航天泵业有限公司 | Self-circulation thin oil lubricating bearing body of vertical pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090032335A1 (en) * | 2007-08-03 | 2009-02-05 | Fu-Yuan Cheng | Bearing-Lubricating Structure for a Direct Drive Torque Motor |
-
2020
- 2020-12-07 CN CN202011430368.3A patent/CN114598089B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109560655A (en) * | 2017-09-27 | 2019-04-02 | 天津市松正电动汽车技术股份有限公司 | A kind of motor bearing lubricating structure |
| CN107795835A (en) * | 2017-11-22 | 2018-03-13 | 贵州智慧能源科技有限公司 | High-speed electric expreess locomotive oil lubrication structure |
| JP2020010575A (en) * | 2018-07-12 | 2020-01-16 | 株式会社日立製作所 | Rotary electric machine and drive system of rotary electric machine and railway vehicle |
| CN111120389A (en) * | 2019-12-30 | 2020-05-08 | 西安航天泵业有限公司 | Self-circulation thin oil lubricating bearing body of vertical pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114598089A (en) | 2022-06-07 |
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