CN210074939U - Mud device that splashes is prevented to motor - Google Patents
Mud device that splashes is prevented to motor Download PDFInfo
- Publication number
- CN210074939U CN210074939U CN201921069101.9U CN201921069101U CN210074939U CN 210074939 U CN210074939 U CN 210074939U CN 201921069101 U CN201921069101 U CN 201921069101U CN 210074939 U CN210074939 U CN 210074939U
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- cover plate
- motor
- transmission flange
- groove
- oil seal
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- Sealing Of Bearings (AREA)
Abstract
The utility model discloses a motor mud splashing prevention device, wherein a transmission flange is fixed on a transmission shaft at the output end of a motor, and a cover plate is fixed on a front end cover; the center of the cover plate is provided with a through hole, and the bearing positioning sleeve passes through the through hole in the center of the cover plate and is fixed between the bearing and the transmission flange; the circumferential side surface of the transmission flange is provided with a tapered annular groove, and the rear end surface of the transmission flange is provided with an annular groove; the cover plate is provided with an oil seal mounting cavity; the front end surface of the cover plate is provided with a groove; the grooves of the transmission flange and the cover plate are mutually staggered to form a cavity and a labyrinth groove. The utility model can enable the automobile to have the function of preventing slurry from splashing to cause motor insulation failure caused by oil seal lip abrasion under the road conditions of muddy ponding and the like; the motor has the advantages of simple and compact integral structure, no additional parts, low cost, high reliability and no influence on the motor efficiency due to no additional mechanical loss, and accords with the development trend of motor light weight.
Description
Technical Field
The utility model relates to a motor sealing protection field, concretely relates to mud device that splashes is prevented to motor.
Background
The motor is used as the heart of the new energy automobile, and converts the electric energy of a storage battery or a novel fuel cell into mechanical energy, or converts the mechanical energy fed back by an engine or a vehicle into electric energy. The new energy automobile driving motor is complex and variable due to the driving environment of the automobile, particularly, the shaft extension end of the driving motor is impacted by splashed slurry and accumulated water in the driving process of rainy, coastal, mountainous, rural and other road sections which are easy to generate mud and accumulated water, and the slurry mixed with silt enters the oil seal to accelerate the abrasion of the lip of the oil seal, so that the abrasion is ineffective, and the insulation failure of the motor is caused.
SUMMERY OF THE UTILITY MODEL
The utility model discloses mainly solve new energy automobile and travel the technical problem that the impact of the mud that splashes on road surface that receives the road surface and ponding leads to the motor inefficacy at the road surface driving motor of mire, ponding.
For solving the above technical problem, the utility model discloses a technical scheme be: a motor mud splashing prevention device is arranged at the output end of a motor and comprises a transmission flange, a cover plate, a front end cover, a bearing and a bearing positioning sleeve; the transmission flange is fixed on a transmission shaft at the output end of the motor, and the cover plate is fixed on the front end cover; the center of the cover plate is provided with a through hole, and the bearing positioning sleeve passes through the through hole in the center of the cover plate and is fixed between the bearing and the transmission flange; the circumferential side surface of the transmission flange is provided with a tapered annular groove, the rear end surface is provided with an annular groove, and a chamfer angle is arranged between the rear end surface and the circumferential side surface; the cover plate is provided with an oil seal mounting cavity; the front end surface of the cover plate is provided with a groove; the grooves of the transmission flange and the cover plate are mutually staggered to form a cavity and a labyrinth groove.
Furthermore, the cover plate groove is triangular.
Furthermore, the lower end of the cover plate is provided with two through holes communicated with the groove.
Furthermore, the excircle of the rear end of the transmission flange is smaller than the diameter of the excircle of the cover plate, and the rear end face of the transmission flange is lower than the front end face of the cover plate.
Furthermore, the lower end of the cover plate is provided with a notch which is not communicated with the groove and is not overlapped with the through hole.
Furthermore, the oil seal is a framework oil seal.
Furthermore, the cover plate blocks the through hole at the shaft extension end of the front end cover.
The utility model has the advantages that: the utility model can enable the automobile to have the function of preventing slurry from splashing to cause motor insulation failure caused by oil seal lip abrasion under the road conditions of muddy ponding and the like; the motor has the advantages of simple and compact integral structure, no additional parts, low cost, high reliability and no influence on the motor efficiency due to no additional mechanical loss, and accords with the development trend of motor light weight.
Drawings
Fig. 1 is a schematic diagram of a main structure of an embodiment of the present invention;
FIG. 2 is a schematic side view of an embodiment of the present invention;
FIG. 3 is an enlarged partial view of the drive flange at the edge;
in the figure: 1-front end cover, 2-bearing, 3-cover plate, 4-oil seal installation cavity, 5-transmission flange, 6-bearing positioning sleeve, 7-shaft, 8-annular groove, 9-annular groove, 10-groove, 11-cavity and 12-labyrinth groove.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, and the scope of the present invention is not limited to the following description.
As shown in fig. 1 to 3, a mud splashing prevention device for a motor is arranged at the output end of the motor, and comprises a front end cover 1, a bearing 2, a cover plate 3, an oil seal 4, a transmission flange 5, a bearing positioning sleeve 6 and a shaft 7; the transmission flange 5 is arranged on the rotating shaft 7; the rear end face of the transmission flange 5 is provided with two annular grooves 8 with trapezoidal sections, and the excircle chamfer of the transmission flange 5 is a; the framework oil seal 4 is arranged in the cavity of the cover plate 3 and is arranged on the end cover 1 together; the front end face of the cover plate 3 is provided with two annular grooves 9, the cover plate 3 is provided with an annular groove, the excircle of the outer end groove of the cover plate 3 is provided with a chamfer angle a, the lower end of the cover plate 3 is provided with two through holes communicated with the groove, the purpose is to discharge accumulated water in the cover plate, and the lower end of the cover plate 3 is provided with a wide groove; the bearing positioning sleeve 6 is arranged on the rotating shaft, one end of the bearing positioning sleeve is tightly attached to the end face of the bearing 2, and the other end of the bearing positioning sleeve is tightly attached to the transmission flange 5, so that the axial gap between the transmission flange 5 and the cover plate 3 is adjusted; the outer circle processing surface of the bearing positioning sleeve 6 is a fine grinding process and is matched with the oil seal 4 to form a basic sealing structure; the transmission flange 5 and the groove of the cover plate 3 are staggered to form a labyrinth groove. When an automobile runs, external slurry hits the transmission flange 5, the transmission flange 5 and a labyrinth outside the cover plate 3 prevent partial slurry water from entering the motor, the inner labyrinth 12 further prevents the slurry water, the rest water is controlled in a cavity 11 formed by the cover plate 3 and the transmission flange 5, and the slurry water is discharged through a hole below the cover plate groove 10.
Claims (7)
1. A motor mud splashing prevention device is arranged at the output end of a motor and comprises a transmission flange, a cover plate, a front end cover, a bearing and a bearing positioning sleeve; the method is characterized in that: the transmission flange is fixed on a transmission shaft at the output end of the motor, and the cover plate is fixed on the front end cover; the center of the cover plate is provided with a through hole, and the bearing positioning sleeve passes through the through hole in the center of the cover plate and is fixed between the bearing and the transmission flange; the circumferential side surface of the transmission flange is provided with a tapered annular groove, the rear end surface is provided with an annular groove, and a chamfer angle is arranged between the rear end surface and the circumferential side surface; the cover plate is provided with an oil seal mounting cavity; the front end surface of the cover plate is provided with a groove; the grooves of the transmission flange and the cover plate are mutually staggered to form a cavity and a labyrinth groove.
2. The mud splashing preventing device for the motor according to claim 1, wherein: the cover plate groove is triangular.
3. The mud splashing preventing device for the motor according to claim 1, wherein: the lower end of the cover plate is provided with two through holes communicated with the groove.
4. The mud splashing preventing device for the motor according to claim 1, wherein: the excircle of the rear end of the transmission flange is smaller than the diameter of the excircle of the cover plate, and the rear end face of the transmission flange is lower than the front end face of the cover plate.
5. The mud splashing preventing device for the motor according to claim 1, wherein: the lower end of the cover plate is provided with a notch which is not communicated with the groove and is not overlapped with the through hole.
6. The mud splashing preventing device for the motor according to claim 1, wherein: the oil seal is a framework oil seal.
7. The mud splashing preventing device for the motor according to claim 1, wherein: the cover plate blocks the through hole at the shaft extension end of the front end cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921069101.9U CN210074939U (en) | 2019-07-10 | 2019-07-10 | Mud device that splashes is prevented to motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921069101.9U CN210074939U (en) | 2019-07-10 | 2019-07-10 | Mud device that splashes is prevented to motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210074939U true CN210074939U (en) | 2020-02-14 |
Family
ID=69429575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921069101.9U Active CN210074939U (en) | 2019-07-10 | 2019-07-10 | Mud device that splashes is prevented to motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210074939U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112202270A (en) * | 2020-12-02 | 2021-01-08 | 山东交通职业学院 | Motor water splashing prevention device and working method thereof |
-
2019
- 2019-07-10 CN CN201921069101.9U patent/CN210074939U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112202270A (en) * | 2020-12-02 | 2021-01-08 | 山东交通职业学院 | Motor water splashing prevention device and working method thereof |
| CN112202270B (en) * | 2020-12-02 | 2021-02-09 | 山东交通职业学院 | Motor water splashing prevention device and working method thereof |
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