CN113623329A - Electric motor - Google Patents
Electric motor Download PDFInfo
- Publication number
- CN113623329A CN113623329A CN202110966569.3A CN202110966569A CN113623329A CN 113623329 A CN113623329 A CN 113623329A CN 202110966569 A CN202110966569 A CN 202110966569A CN 113623329 A CN113623329 A CN 113623329A
- Authority
- CN
- China
- Prior art keywords
- transparent cover
- cavity
- bearing assembly
- housing
- motor shaft
- 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.)
- Pending
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Classifications
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- 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
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/07—Fixing them on the shaft or housing with interposition of an element
- F16C35/077—Fixing them on the shaft or housing with interposition of an element between housing and outer race ring
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- 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
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- 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
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- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
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- 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
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N39/02—Arrangements for conditioning of lubricants in the lubricating system by cooling
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- 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
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/38—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems
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- 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
- H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
- H02K5/1737—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a motor, and belongs to the technical field of motors. The motor comprises a shell, a motor shaft and a bearing assembly, wherein a first transparent cover is arranged on the outer side of the shell, a second transparent cover is arranged on the inner side of the shell, a cavity is formed by the first transparent cover, the second transparent cover and the shell, and lubricating oil is arranged in the cavity; the motor shaft penetrates through the cavity, and one end of the motor shaft extends out of one side of the cavity, which is far away from the shell, and is fixedly connected with a rotor of the shaft end pump; the housing and the motor shaft are rotatably coupled by a bearing assembly, the bearing assembly is disposed within the cavity, the bearing assembly is capable of withstanding axial forces, and the lubricating oil is used to lubricate the bearing assembly. According to the motor, the bearing assembly can bear axial force, so that the axial bearing capacity is improved, the bearing assembly is subjected to oil bath lubrication, the bearing assembly can work under a high-temperature condition, the abrasion of the bearing assembly is reduced, the service life of the bearing assembly is prolonged, and the service life of the motor is prolonged.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a motor.
Background
At present, a motor shaft in a motor is provided with a deep groove ball bearing, and the deep groove ball bearing is lubricated and cooled by grease lubrication. When the motor shaft bears the axial force, the deep groove ball bearing has poor bearing capacity, and when the motor shaft works at high temperature, the bearing is easy to wear.
Disclosure of Invention
The invention aims to provide a motor, which has the advantages of improving the axial bearing capacity, being capable of working in a high-temperature environment, reducing the abrasion of a bearing assembly and prolonging the service life.
In order to achieve the purpose, the invention adopts the following technical scheme:
an electric motor, comprising:
the lubricating oil pump comprises a machine shell, wherein a first transparent cover is arranged on the outer side of the machine shell, a second transparent cover is arranged on the inner side of the machine shell, a cavity is formed by the first transparent cover, the second transparent cover and the machine shell, and lubricating oil is arranged in the cavity;
the motor shaft penetrates through the cavity, and one end of the motor shaft extends out of one side of the cavity, which is far away from the shell, and is fixedly connected with a rotor of the shaft end pump;
a bearing assembly, said housing and said motor shaft being rotatably coupled by said bearing assembly, said bearing assembly being disposed within said chamber, said bearing assembly being capable of withstanding axial forces, and said lubricating oil being used to lubricate said bearing assembly.
Optionally, the bearing assembly comprises two tapered roller bearings, and inner rings of the tapered roller bearings are in interference fit with the motor shaft; or
The bearing assembly comprises a thrust roller bearing and a cylindrical roller bearing, wherein an inner ring of the thrust roller bearing is in interference fit with the motor shaft, and an inner ring of the cylindrical roller bearing is in interference fit with the motor shaft.
Optionally, the casing includes a housing and an end cover, the first transparent cover and the second transparent cover are disposed on two sides of the end cover, and the end cover, the first transparent cover and the second transparent cover form the chamber.
Optionally, the end cap comprises:
the first transparent cover and the second transparent cover are arranged on two sides of the mounting plate;
the boss, protruding locating the mounting panel, the boss set up in the cavity, the mounting hole has been seted up on the boss, bearing assembly install in the mounting hole, the external diameter of boss is less than the external diameter of mounting panel.
Optionally, the shaft end pump is provided with an installation shell, the installation shell with the rotor rotates to be connected, first pass through the lid with installation shell fixed connection forms and holds the chamber, the shaft end pump can absorb in the chamber lubricating oil, the motor still includes cooling module, cooling module's output with the chamber intercommunication, the input with hold the chamber intercommunication.
Optionally, the cooling assembly includes a cooling pipe, one end of the cooling pipe is connected to the mounting shell, and the other end of the cooling pipe is connected to the first transparent cover.
Optionally, a first sealing element is arranged between the first transparent cover and the motor shaft, and a second sealing element is arranged between the second transparent cover and the motor shaft.
Optionally, a sealing cover is further disposed on the inner side of the casing, the sealing cover and the casing form a sealing cavity, and the second transparent cover is disposed in the sealing cavity.
Optionally, an oil return pipeline is further arranged in the casing, one end of the oil return pipeline is communicated with the seal cavity, and the other end of the oil return pipeline is arranged on the casing.
Optionally, the oil return pipeline is arranged at one end of the casing and is provided with an oil mirror.
The invention has the beneficial effects that:
according to the motor provided by the invention, the bearing assembly can bear axial force, so that the axial bearing capacity is improved, and a motor shaft can be used for bearing the axial force; the first cover and the second cover form a cavity with the casing, lubricating oil for lubricating the bearing assembly is arranged in the cavity, oil bath lubrication is carried out on the bearing assembly, the bearing assembly can work under a high-temperature condition, abrasion of the bearing assembly is reduced, the service life of the bearing assembly is prolonged, and further the service life of the motor is prolonged.
Drawings
Fig. 1 is a schematic view of an internal structure of a motor according to an embodiment of the present invention.
In the figure:
100. lubricating oil; 200. a rotor;
11. a housing; 12. an end cap; 121. mounting a plate; 122. a boss; 13. a first transparent cover; 14. a second transparent cover; 15. a chamber; 16. a sealing cover; 17. sealing the cavity;
2. a motor shaft;
3. a tapered roller bearing;
4. a cooling assembly; 41. a cooling tube;
51. a first seal member; 52. a second seal member; 53. a third seal member;
6. an oil return line;
7. an oil mirror.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The present embodiment provides an electric motor, as shown in fig. 1, which includes a housing, a first transparent cover 13, a second transparent cover 14, a motor shaft 2 and a bearing assembly; specifically, the first transparent cover 13 is arranged on the outer side of the machine shell, the second transparent cover 14 is arranged on the inner side of the machine shell, the first transparent cover 13, the second transparent cover 14 and the machine shell form a cavity 15, and lubricating oil 100 is arranged in the cavity 15; the motor shaft 2 penetrates through the cavity 15, and one end of the motor shaft 2 extends out of one side of the cavity 15, which is far away from the shell, and is fixedly connected with a rotor 200 of the shaft-end pump; the housing and the motor shaft 2 are rotatably connected by a bearing assembly disposed in the cavity 15, the bearing assembly being capable of withstanding axial forces, and the lubricating oil 100 being used to lubricate the bearing assembly.
The bearing assembly can bear axial force, so that the axial bearing capacity is improved, and the motor shaft 2 can be used in occasions bearing the axial force; the first transparent cover 13 and the second transparent cover 14 form a cavity 15 with the machine shell, lubricating oil 100 used for lubricating the bearing assembly is arranged in the cavity 15, oil bath lubrication is carried out on the bearing assembly, the bearing assembly can work under the high-temperature condition, the abrasion of the bearing assembly is reduced, the service life of the bearing assembly is prolonged, and further the service life of the motor is prolonged.
In the embodiment, the bearing assembly comprises two tapered roller bearings 3, the tapered roller bearings 3 can bear heavier radial and axial combined load and can also bear axial load, and the larger the contact angle is, the higher the axial bearing capacity is, so that the shafting bearing capacity of the motor shaft 2 is improved; specifically, the inner ring of the tapered roller bearing 3 is in interference connection with the motor shaft 2, and the outer ring of the tapered roller bearing 3 is installed on the casing; in other embodiments, the bearing assembly may be a thrust roller bearing and a cylindrical roller bearing, and the inner rings of the thrust roller bearing and the cylindrical roller bearing are both in interference fit with the motor shaft 2.
Optionally, as shown in fig. 1, the casing includes a housing 11 and an end cover 12, the first transparent cover 13 and the second transparent cover 14 are disposed on two sides of the end cover 12, the first transparent cover 13 and the second transparent cover 14 form a cavity 15, and the end cover 12 and the housing 11 are separately disposed for processing; specifically, the shell 11 and the end cover 12 are detachably connected, so that the disassembly and the assembly are convenient; in this embodiment, the housing 11 and the end cap 12 are connected by a fastener, and the first transparent cover 13 and the second transparent cover 14 are connected to the end cap 12 by a fastener, respectively. During assembly, the first transparent cover 13 and the second transparent cover 14 are mounted on the end cover 12, and then the end cover 12 is mounted on the shell 11, so that assembly is facilitated.
Optionally, the end cover 12 includes a mounting plate 121 and a boss 122, the first transparent cover 13 and the second transparent cover 14 are mounted on two sides of the mounting plate 121, the boss 122 is convexly disposed on the mounting plate 121, the boss 122 is disposed in the cavity 15, a mounting hole is formed in the boss 122, a bearing assembly is mounted in the mounting hole and is used for supporting the bearing assembly and the motor shaft 2, an outer diameter of the boss 122 is smaller than an outer diameter of the mounting plate 121, and the mounting plate 121 is used for being connected with the housing 11, so that the end cover 12 can be mounted on the housing 11 and the weight of the end cover 12 can be reduced.
Optionally, the shaft end pump is provided with a mounting shell (not shown in the figure), the mounting shell is rotatably connected with the rotor 200, the first transparent cover 13 is fixedly connected with the mounting shell to form a containing cavity, and the shaft end pump can suck the lubricating oil 100 in the cavity 15 during the rotation of the motor shaft 2 and the rotor 200; in this embodiment, the motor still includes cooling module 4, cooling module 4's output and cavity 15 intercommunication, the input with hold the chamber intercommunication, get into and hold lubricating oil 100 of intracavity and get into cavity 15 after cooling module 4 cools off, can recycle lubricating oil 100, can inject refrigerated lubricating oil 100 into in cavity 15 again simultaneously, can lubricate and can cool off, the operating temperature of bearing assembly has been reduced, and then the life of bearing assembly has been improved, make bearing assembly can be applicable to the great occasion of load.
Optionally, the cooling assembly 4 includes a cooling pipe 41, one end of the cooling pipe 41 is connected to the mounting shell, the other end of the cooling pipe 41 is connected to the first transparent cover 13, and the cooling pipe 41 is used for communicating the cavity 15 and the accommodating cavity, so that the connection is convenient and reliable; specifically, the cooling module 4 may adopt an existing structure, such as an air cooling method, a water cooling coil, or a plate cooler, without limitation. Specifically, the mounting shell is hermetically connected with the first transparent cover 13, so that the lubricating oil 100 entering the accommodating cavity is prevented from leaking; specifically, the mounting shell is connected with the first transparent cover 13 through a fastener, and a sealing element is arranged between the mounting shell and the first transparent cover 13; specifically, the motor shaft 2 is keyed to the rotor 200 of the shaft-end pump to enable better torque transmission.
Optionally, a sealing cover 16 is further arranged on the inner side of the casing, the sealing cover 16 and the casing form a sealing cavity 17, and the second transparent cover 14 is arranged in the sealing cavity 17 to prevent the lubricating oil 100 in the cavity 15 from leaking into the casing and affecting the service life of the motor.
Optionally, a first sealing element 51 is arranged between the first transparent cover 13 and the motor shaft 2, so that the sealing performance between the first transparent cover 13 and the motor shaft 2 is improved, the lubricating oil 100 is prevented from leaking, and the lubricating reliability is improved; in particular, the first seal 51 may be a dynamic seal ring. Similarly, optionally, a second sealing element 52 is arranged between the second transparent cover 14 and the motor shaft 2, so that the sealing performance between the second transparent cover 14 and the motor shaft 2 is improved, the lubricating oil 100 is prevented from leaking into the casing, and the reliability of the motor is improved; in particular, the second seal 52 may be a dynamic seal ring. In the same way, optionally, a third sealing element 53 is arranged between the sealing cover 16 and the motor shaft 2, so that the sealing performance between the sealing cover 16 and the motor shaft 2 is improved, the lubricating oil 100 in the cavity 15 is further prevented from entering the inside of the shell 11, the use of other parts is influenced, and the use reliability of the motor is improved.
In this embodiment, the bosses 122 on the end cover 12 are protruded along both sides of the mounting plate 121, the inner side wall of the first transparent cover 13 abuts against the periphery of the bosses 122, so as to reduce the circumferential volume of the first transparent cover 13, and make the structure compact, and the distance between the inner top wall of the first transparent cover 13 and the bosses 122 can be set according to the amount of the lubricating oil 100 to be loaded, without limitation. Specifically, the side wall of the first transparent cover 13 is provided with a folded edge, and the folded edge is connected to the mounting plate 121 through a fastener; in this embodiment, the second transparent cover 14 is mounted at the end of the boss 122 by a fastener, so as to reduce the space occupied by the second transparent cover 14 in the interior of the enclosure. In the embodiment, the inner side wall of the sealing cover 16 is abutted against the periphery of the boss 122, so that the circumferential volume of the sealing cover 16 is reduced, and the structure is compact; the distance between the top wall of the sealing cover 16 and the second transparent cover 14 may be set according to the inner space of the cabinet, and is not limited.
Optionally, an oil return pipeline 6 is further arranged in the machine shell, one end of the oil return pipeline 6 is communicated with the sealed cavity 17, the other end of the oil return pipeline 6 is arranged on the machine shell, when the lubricating oil in the cavity 15 leaks to the sealed cavity 17, the leaked lubricating oil 100 returns through the oil return pipeline 6, the leaked lubricating oil 100 is prevented from being stored in the sealed cavity 17, the risk that the lubricating oil 100 enters the machine shell is reduced, the oil return pipeline 6 connected to one end of the machine shell can be communicated with a recovery box, and the leaked lubricating oil is convenient to recover. Specifically, the oil return pipeline 6 is connected to the casing end cover 12 in a threaded manner, so that the assembly and disassembly are convenient. Further optionally, the oil return pipeline 6 is provided with an oil mirror 7 at one end of the housing, the oil mirror 7 is used for plugging the oil return pipeline 6, whether the lubricating oil 100 exists in the oil return pipeline 6 can be conveniently observed through the oil mirror 7, and when the lubricating oil 100 exists, it is indicated that the lubricating oil 100 leaks, maintenance is needed, and the reliability of the product is improved.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. An electric motor, comprising:
the lubricating oil pump comprises a machine shell, wherein a first transparent cover (13) is arranged on the outer side of the machine shell, a second transparent cover (14) is arranged on the inner side of the machine shell, a cavity (15) is formed by the first transparent cover (13), the second transparent cover (14) and the machine shell, and lubricating oil (100) is arranged in the cavity (15);
the motor shaft (2) penetrates through the cavity (15), one end of the motor shaft (2) extends out of one side, away from the shell, of the cavity (15), and is fixedly connected with a rotor (200) of the shaft-end pump;
a bearing assembly by which the housing and the motor shaft (2) are rotationally connected, the bearing assembly being disposed within the cavity (15), the bearing assembly being capable of withstanding axial forces, and the lubricating oil (100) being used to lubricate the bearing assembly.
2. The motor according to claim 1,
the bearing assembly comprises two tapered roller bearings (3), and the inner rings of the tapered roller bearings (3) are in interference fit with the motor shaft (2); or
The bearing assembly comprises a thrust roller bearing and a cylindrical roller bearing, wherein an inner ring of the thrust roller bearing is in interference fit with the motor shaft (2), and an inner ring of the cylindrical roller bearing is in interference fit with the motor shaft (2).
3. The electric motor according to claim 1, characterized in that the casing comprises a housing (11) and an end cover (12), the first transparent cover (13) and the second transparent cover (14) being arranged on both sides of the end cover (12), the first transparent cover (13) and the second transparent cover (14) forming the chamber (15).
4. The electric motor according to claim 3, characterized in that the end cap (12) comprises:
a mounting plate (121), the first transparent cover (13) and the second transparent cover (14) being mounted on both sides of the mounting plate (121);
the boss (122) is convexly arranged on the mounting plate (121), the boss (122) is arranged in the cavity (15), a mounting hole is formed in the boss (122), the bearing assembly is mounted in the mounting hole, and the outer diameter of the boss (122) is smaller than that of the mounting plate (121).
5. The electric motor according to any one of claims 1 to 4, characterized in that the shaft-end pump is provided with a mounting housing, which is rotatably connected to the rotor (200), the first transparent cover (13) is fixedly connected to the mounting housing to form a housing cavity, the shaft-end pump is capable of sucking the lubricating oil (100) in the chamber (15), the electric motor further comprises a cooling assembly (4), an output end of the cooling assembly (4) is in communication with the chamber (15), and an input end of the cooling assembly is in communication with the housing cavity.
6. An electric motor according to claim 5, characterized in that the cooling assembly (4) comprises a cooling tube (41), one end of the cooling tube (41) being connected to the mounting housing and the other end being connected to the first transparent cover (13).
7. An electric motor according to any one of claims 1-4, characterized in that a first seal (51) is arranged between the first transparent cover (13) and the motor shaft (2), and a second seal (52) is arranged between the second transparent cover (14) and the motor shaft (2).
8. An electric motor according to any one of claims 1-4, characterized in that a sealing cover (16) is arranged inside the housing, the sealing cover (16) and the housing forming a sealed cavity (17), the second transparent cover (14) being arranged in the sealed cavity (17).
9. The motor according to claim 8, wherein a return line (6) is further disposed in the housing, one end of the return line (6) is communicated with the seal cavity (17), and the other end of the return line (6) is disposed on the housing.
10. An electric motor according to claim 9, characterized in that the oil return line (6) is provided with an oil mirror (7) at one end of the machine housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110966569.3A CN113623329A (en) | 2021-08-23 | 2021-08-23 | Electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110966569.3A CN113623329A (en) | 2021-08-23 | 2021-08-23 | Electric motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113623329A true CN113623329A (en) | 2021-11-09 |
Family
ID=78387208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110966569.3A Pending CN113623329A (en) | 2021-08-23 | 2021-08-23 | Electric motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113623329A (en) |
-
2021
- 2021-08-23 CN CN202110966569.3A patent/CN113623329A/en active Pending
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