CN212627445U - Structure for preventing lubricating oil from permeating into driving motor - Google Patents
Structure for preventing lubricating oil from permeating into driving motor Download PDFInfo
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- CN212627445U CN212627445U CN202021479182.2U CN202021479182U CN212627445U CN 212627445 U CN212627445 U CN 212627445U CN 202021479182 U CN202021479182 U CN 202021479182U CN 212627445 U CN212627445 U CN 212627445U
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- power shaft
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Abstract
The utility model relates to a structure for preventing lubricating oil from permeating into a driving motor, which comprises a second power shaft supported on a shell of the driving motor through a first bearing and a second bearing, and a first power shaft supported on the shell of the driving motor through a third bearing and a fourth bearing; the first power shaft is connected with the second power shaft and coaxially rotates; a steel bushing is arranged between the second bearing and the shell of the driving motor, and the inner ring of the steel bushing protrudes rightwards; an oil seal component is arranged at the position of the second power shaft penetrating through the interval in the shell, and an oil storage ring groove is formed between the left side of the oil seal component and the right side of the steel sleeve; and inclined oil return channels are arranged at intervals in the shell, one end of each oil return channel is communicated with the oil storage ring groove, and the other end of each oil return channel is communicated with the right side of the third bearing. The utility model discloses can prevent that lubricating medium from flowing to motor power, keep motor power transmission efficiency, avoid taking place the accident of motor power short circuit, burning out.
Description
Technical Field
The utility model relates to a new energy automobile power assembly, concretely relates to driving motor prevents lubricating oil infiltration oil structure.
Background
With continuous use of new energy pure electric vehicles by markets and individuals, the electric drive power assembly serves as a core component of the pure electric vehicle, the working mode is severe, abrasion of parts of the electric drive power assembly cannot be avoided, particularly, abrasion failure of wearing parts inside the electric drive power assembly is difficult to detect, and when the wearing parts inside the electric drive power assembly fail, ideal working functions of other parts can be affected in a related mode.
The particularity of the internal sealing element of the existing electric drive power assembly of the new energy automobile on the structural arrangement is difficult to directly observe whether the internal sealing element fails, when the oil seal of the sealing element fails, the lubricating medium of the power transmission element of the power assembly can be leaked to the motor on the other side through the sealing element, the transmission efficiency of the motor is reduced, and when the lubricating medium is leaked to a certain amount, the power motor can be short-circuited and burnt out.
CN 110230768A discloses a "lubricating system for driving motor of new energy electric automobile", which comprises an end cover, a motor shaft, a bearing, an inner cover, an oil storage tank, an oil delivery pipe, an oil dripping pipe, an oil return pipe and a control system; an oil storage tank and an oil collection tank are arranged in the end cover, and a lubricating tank is arranged at the joint of the end cover and the inner cover; the input end of the oil delivery pipe is connected with the oil storage tank, and the output end of the oil delivery pipe is communicated with the oil storage tank; the oil delivery pipe is provided with an oil pump, a first pressure detection device and a first flowmeter; the oil dripping pipe is communicated with the oil storage tank and the lubricating tank; the input end of the oil return pipe is communicated with the oil collecting tank, and the output end of the oil return pipe is connected with the oil storage tank; the oil return pipe is provided with a filter, a second pressure detection device, a pressure relief pipe and a first control valve. The lubricating oil recovery device is simple and convenient to operate, the bearing of the driving motor is conveniently lubricated, the abrasion of the bearing and a motor shaft is obviously reduced, the normal work of the driving motor is ensured, the service life of the driving motor is prolonged, and the recovery of the lubricating oil can be realized. But there is no mention of the problem of how to prevent the lubricant from penetrating into the drive motor.
Disclosure of Invention
The utility model aims at providing a driving motor prevents lubricating oil infiltration structure, it can prevent that the lubricating medium from flowing to motor power, keeps motor power transmission efficiency, avoids taking place the accident of motor power short circuit, burning out.
The utility model discloses a structure for preventing lubricating oil from permeating into a driving motor, which comprises a second power shaft supported on a shell of the driving motor through a first bearing and a second bearing, and a first power shaft supported on the shell of the driving motor through a third bearing and a fourth bearing; the first power shaft is connected with the second power shaft and coaxially rotates; the method is characterized in that: a steel bushing is arranged between the second bearing and the shell of the driving motor, and the inner ring of the steel bushing protrudes rightwards; an oil seal component is arranged at the position of the second power shaft penetrating through the interval in the shell, and an oil storage ring groove is formed between the left side of the oil seal component and the right side of the steel sleeve; and inclined oil return channels are arranged at intervals in the shell, one end of each oil return channel is communicated with the oil storage ring groove, and the other end of each oil return channel is communicated with the right side of the third bearing.
Further, a first bearing chamber is formed between a right side of the oil seal member and a left side of a third bearing, and a second bearing chamber is formed on a left side of the second bearing.
Furthermore, an O-shaped sealing ring is arranged between the second bearing and the steel sleeve.
Furthermore, one end of the oil return channel is provided with a one-way valve.
Furthermore, the first power shaft is of a hollow structure, and the right end of the second power shaft is connected with the left end of the first power shaft in a matched mode through a spline structure.
Because the inclined oil return channels are arranged at intervals in the shell of the driving motor, the oil seal member can be worn and failed after a long distance, and lubricating oil can leak to a lubricating area of the driving motor from the oil storage ring groove through the oil return leakage channels, so that the lubricating oil is prevented from flowing into the driving motor. Effectively avoided lubricating oil to get into driving motor and caused the decline of efficiency and even caused the motor short circuit.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure:
1-a first bearing chamber, 2-an oil seal component, 3-an oil storage ring groove, 4-a second bearing chamber, 5-a steel sleeve, 6-an O-shaped sealing ring, 7-an oil return channel, 8-a one-way valve, 9-a first power shaft, 10-a second power shaft and 11-a spline structure;
20-housing, 21-first bearing, 22-second bearing, 23-third bearing, 24-fourth bearing.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1, a structure for preventing the infiltration of lubricating oil into a driving motor includes a second power shaft 10 supported on a housing 20 of the driving motor by first and second bearings 21 and 22, and a first power shaft 9 supported on the housing 20 of the driving motor by third and fourth bearings 23 and 24; the first power shaft 9 is connected with the second power shaft 10 and rotates coaxially; the method is characterized in that: a steel bushing 5 is arranged between the second bearing 22 and the shell 20 of the driving motor, and the inner ring of the steel bushing 5 protrudes rightwards and has the function of an oil retaining ring; an oil seal member 2 is arranged at a position where the second power shaft 10 passes through the interval in the housing 20, and an oil storage ring groove 3 is formed between the left side of the oil seal member 2 and the right side of the steel sleeve 5; an inclined oil return channel 7 is arranged at intervals in the shell 20, one end of the oil return channel is communicated with the oil storage ring groove 3, and the other end of the oil return channel is communicated with the right side of the third bearing 23. After the oil seal member fails in wear, the lubricating oil in the drive motor can leak from the oil reservoir groove to the lubrication area of the drive motor, thereby preventing the lubricating oil from flowing into the drive motor.
A first bearing chamber 1 is formed between the right side of the oil seal member 2 and the left side of the third bearing 23, and a second bearing chamber 4 is formed on the left side of the second bearing 22. The first bearing chamber is a lubrication end of the driving motor, and lubricating oil flows into the first bearing chamber; the second bearing chamber is a vacuum end of the driving motor and is to prevent the infiltration of the lubricating oil.
An O-shaped sealing ring 6 is arranged between the second bearing 22 and the steel sleeve 5. The O-shaped sealing ring can prevent lubricating oil from permeating into the driving motor.
One end of the oil return channel 7 is provided with a one-way valve 8. The lubricating oil can flow back to the lubricating area of the driving motor through the one-way valve and cannot flow to the oil storage ring groove through the one-way valve.
The first power shaft 9 is of a hollow structure, and the right end of the second power shaft 10 is connected with the left end of the first power shaft 9 in a matched mode through a spline structure 11. When the second power shaft rotates, the first power shaft 9 is driven to rotate, when the first power shaft rotates, the lubricating oil is driven to enter the first bearing chamber, and when the lubricating oil enters the first bearing chamber under the normal working condition, the lubricating oil returns to the lubricating area of the driving motor. After a long mileage, the oil seal member may be worn. At the moment, when the second power shaft drives the first power shaft to rotate, lubricating oil enters the first bearing chamber, and due to abrasion of the oil seal component, the lubricating oil enters the oil storage ring groove through the oil seal component, and due to the sealing effect of the steel sleeve and the O-shaped sealing ring, the lubricating oil cannot enter the driving motor. At this time, the lubricating oil flows back to the lubricating area of the driving motor through the oil return passage and the check valve.
Claims (5)
1. A structure for preventing lubricating oil from penetrating into a drive motor comprises a second power shaft (10) supported on a housing (20) of the drive motor through a first bearing (21) and a second bearing (22), and a first power shaft (9) supported on the housing (20) of the drive motor through a third bearing (23) and a fourth bearing (24); the first power shaft (9) is connected with the second power shaft (10) and coaxially rotates; the method is characterized in that: a steel sleeve (5) is arranged between the second bearing (22) and a shell (20) of the driving motor, and the inner ring of the steel sleeve (5) protrudes rightwards; an oil seal component (2) is arranged at the position of the second power shaft (10) penetrating through the interval in the shell (20), and an oil storage ring groove (3) is formed between the left side of the oil seal component (2) and the right side of the steel sleeve (5); an inclined oil return channel (7) is arranged at intervals in the shell (20), one end of the oil return channel is communicated with the oil storage ring groove (3), and the other end of the oil return channel is communicated with the right side of the third bearing (23).
2. The structure for preventing infiltration of lubricant oil of a driving motor according to claim 1, wherein: a first bearing chamber (1) is formed between the right side of the oil seal member (2) and the left side of a third bearing (23), and a second bearing chamber (4) is formed on the left side of the second bearing (22).
3. The structure for preventing the infiltration of the lubricating oil of the drive motor according to claim 1 or 2, wherein: an O-shaped sealing ring (6) is arranged between the second bearing (22) and the steel sleeve (5).
4. The structure for preventing the infiltration of the lubricating oil of the drive motor according to claim 1 or 2, wherein: one end of the oil return channel (7) is provided with a one-way valve (8).
5. The structure for preventing the infiltration of the lubricating oil of the drive motor according to claim 1 or 2, wherein: the first power shaft (9) is of a hollow structure, and the right end of the second power shaft (10) is connected with the left end of the first power shaft (9) in a matched mode through a spline structure (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021479182.2U CN212627445U (en) | 2020-07-24 | 2020-07-24 | Structure for preventing lubricating oil from permeating into driving motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021479182.2U CN212627445U (en) | 2020-07-24 | 2020-07-24 | Structure for preventing lubricating oil from permeating into driving motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212627445U true CN212627445U (en) | 2021-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021479182.2U Active CN212627445U (en) | 2020-07-24 | 2020-07-24 | Structure for preventing lubricating oil from permeating into driving motor |
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| Country | Link |
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| CN (1) | CN212627445U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187884A (en) * | 2021-04-23 | 2021-07-30 | 重庆长安新能源汽车科技有限公司 | Lubricating structure and vehicle of motor shaft and reduction gear axle |
-
2020
- 2020-07-24 CN CN202021479182.2U patent/CN212627445U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187884A (en) * | 2021-04-23 | 2021-07-30 | 重庆长安新能源汽车科技有限公司 | Lubricating structure and vehicle of motor shaft and reduction gear axle |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Patentee after: Deep Blue Automotive Technology Co.,Ltd. Address before: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Patentee before: CHONGQING CHANGAN NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |