CN216951660U - Electric automobile main shaft wear-resisting oil seal - Google Patents
Electric automobile main shaft wear-resisting oil seal Download PDFInfo
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- CN216951660U CN216951660U CN202220126646.4U CN202220126646U CN216951660U CN 216951660 U CN216951660 U CN 216951660U CN 202220126646 U CN202220126646 U CN 202220126646U CN 216951660 U CN216951660 U CN 216951660U
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- oil seal
- oil
- wear
- oil blanket
- main shaft
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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Abstract
The utility model discloses a wear-resistant oil seal for a main shaft of an electric automobile, which comprises an oil seal frame, a metal framework and an annular spring. The oil blanket frame includes the lateral wall of body coupling, the terminal surface, the dust guard, connecting portion and the oil blanket portion of can twisting, metal framework embeds in the oil blanket frame, the dust guard includes the convex dust ring to the terminal surface outside, the connecting portion is connected dust guard and oil blanket portion, the middle part interval is provided with a plurality of ring channel uniformly, oil blanket portion includes to the central axis be the convex oil blanket ring of mountain spine form, hold-down groove and spacing ring, oil blanket ring inner wall is provided with wear-resisting gasket, the hold-down groove is half circular ring groove, inside cover is equipped with annular spring, this wear-resisting oil blanket stops and reverses the time of reversal under motor spindle high-speed rotation instantaneously, connecting portion play the effect of reversal buffering, give the assistance of oil blanket portion slow deceleration and slow reverse acceleration, possess wear-resisting, withstand voltage, sealed oil, function in an organic whole such as dustproof, long service life.
Description
Technical Field
The utility model relates to the technical field of new energy automobile accessories, in particular to a wear-resistant oil seal for a main shaft of an electric automobile.
Background
At present, the market prospect of the electric automobile is wide, the occupancy is promoted continuously, the electric automobile obtains good comments of vehicle friends gradually due to the technical advantages of energy conservation, oil conservation, environmental protection and the like, a high-speed motor is adopted in a machine box mostly, and the electric automobile has a quick corresponding forward and reverse rotation function, so that the oil seal in the motor needs to have the necessary performances of wear resistance, pressure resistance, oil sealing, dust prevention and the like, the rotating speed of a motor main shaft in the electric automobile is up to 20000r/min, the rotating speed which can be borne by a traditionally used motor oil seal is limited, the oil seal and the main shaft emergency brake can damage the oil sealing surface of the oil seal in the process of reverse rotation again in the forward and reverse rotation quick response, the service life of the oil seal is shortened, and therefore, a motor main shaft oil seal piece needs to be designed specially to have the technical performances of wear resistance and oil sealing under the high-speed forward and reverse rotation condition.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is as follows: in view of the technical requirements in the background art, an electric vehicle spindle wear-resistant oil seal is designed, an elastic oil seal part and a dustproof part are respectively designed corresponding to one side in a motor, the dustproof part corresponds to air in an outer space, a rotatable connecting part is further arranged between the oil seal part and the dustproof part, the connecting part plays a role of reverse rotation buffering in the time of instant stop and reverse rotation of the motor spindle under high-speed rotation, the oil seal part is assisted by slow deceleration and slow reverse acceleration, a small amount of leaked oil in the motor can be blocked, the oil sealing effect on the inner side of the motor spindle is fully ensured, meanwhile, a dustproof ring arranged on the dustproof part is slightly attached to the surface of the motor spindle, under the condition that sliding friction force is not increased, external dust is prevented from entering the oil seal part, and the electric vehicle spindle wear-resistant oil seal has the functions of wear resistance, pressure resistance, oil sealing, dust prevention and the like, and is long in service life.
The technical scheme adopted for solving the problems is as follows:
an electric automobile main shaft wear-resistant oil seal comprises an oil seal frame, a metal framework and an annular spring.
The oil seal frame is annular and comprises an outer side wall, an end face, a dustproof part, a connection part capable of being twisted and an oil seal part which are connected integrally, the metal framework is embedded in the oil seal frame,
the dust-proof part is arranged outside the central hole of the end surface and comprises a dust-proof ring protruding towards the outer side of the end surface,
the connecting part connects the dustproof part with the oil seal part, a plurality of annular grooves are uniformly arranged in the middle of the connecting part at intervals,
the oil blanket portion sets up inboard at the centre bore of terminal surface, includes to the central axis be convex oil blanket circle of ridge form, compress tightly groove and spacing ring, oil blanket circle inner wall is provided with wear-resisting gasket, compress tightly the groove and be half circular ring groove, inside cover is equipped with annular spring, annular spring assists compresses tightly oil blanket portion, guarantees oil blanket portion and motor spindle periphery and compresses tightly the cooperation with elasticity adjustable mode, the spacing ring sets up in the groove outside that compresses tightly, prescribes a limit to the position of annular spring, compress tightly the inslot side and still be provided with bellied spacing ring on connecting portion to guarantee that oil blanket circle is under the tensioning state is propped up by the main shaft, still accurately prescribes a limit to the position of annular spring after compressing tightly the groove deformation.
Further, metal framework sets up inside oil blanket frame for support oil blanket spare major structure, metal framework is the L type, supports oil blanket frame's lateral wall and terminal surface, the terminal surface still is provided with positioning groove, and the tight metal framework of location clamp when moulding plastics metal framework and oil blanket frame an organic whole.
Furthermore, the inner diameter of the dust ring is slightly smaller than the shaft diameter of the motor spindle.
Furthermore, the wear-resistant gasket is made of PTFE.
Further, the annular groove is provided on an inner wall of the connecting portion.
Further, the annular groove is arranged on the outer wall of the connecting part.
Further, the inside annular of oil blanket frame is provided with the strengthening rib strip.
Further, the size of the inner diameter of the innermost circle of the oil seal ring is smaller than the size of the outer diameter of the motor spindle, so that the oil seal ring is tightly attached to the motor spindle.
The utility model has the beneficial effects that:
the electric automobile spindle wear-resistant oil seal is characterized in that an elastic oil seal part and a dust-proof part are respectively designed on one side of the interior of a motor, the elastic oil seal part corresponds to the dust-proof part of outside space air, a connecting part capable of being twisted is further arranged between the oil seal part and the dust-proof part, the connecting part plays a role of reverse rotation buffering in the time of instant stop and reverse rotation of the motor spindle under high-speed rotation, the oil seal part is assisted by slow deceleration and slow reverse acceleration, a small amount of leaked oil in the motor can be blocked, the oil sealing effect on the inner side of the motor spindle is fully ensured, meanwhile, a dust ring arranged on the dust-proof part is slightly attached to the surface of the motor spindle, under the condition that the sliding friction force is not increased, external dust is prevented from entering the interior of an oil seal part, and the electric automobile spindle wear-resistant oil seal has the functions of wear resistance, pressure resistance, oil sealing, dust prevention and the like, and is integrated, and the service life is long.
Drawings
Fig. 1 is a structural sectional view of a wear-resistant oil seal of a main shaft of an electric vehicle in embodiment 1;
FIG. 2 is a sectional view of the wear-resistant oil seal of embodiment 1 in a state of being engaged with a spindle;
FIG. 3 is a sectional view of the wear-resistant oil seal of embodiment 2 in a state of being fitted to a spindle;
the oil seal structure comprises a 1-oil seal frame, a 2-metal framework, a 3-first inner side annular groove, a 4-dustproof part, a 5-second inner side annular groove, a 6-oil seal ring, a 7-wear-resistant gasket, a 8-limiting ring, a 9-annular spring, a 10-limiting ring, an 11-outer side wall, a 12-connecting part, a 13-main shaft, a 14-outer side annular groove, a 15-pressing groove and a 16-end face.
Detailed Description
The technical solution of the present invention will be clearly and completely described in the following by way of example with reference to the accompanying drawings.
Example 1：
Referring to fig. 1 and fig. 2, the embodiment provides a wear-resistant oil seal for a spindle of an electric vehicle, which includes an oil seal frame 1, a metal framework 2, and an annular spring 9.
Specifically, the oil seal frame 1 is annular and comprises an outer side wall 11, an end face 16, a dust-proof part 4, a connecting part 12 and an oil seal part which are integrally connected, the metal framework 2 is embedded in the oil seal frame 1,
the dust-proof part 4 is arranged outside the central hole of the end surface and comprises a dust-proof ring protruding towards the outer side of the end surface,
the connecting part 12 connects the dust-proof part 4 with the oil seal part, and 3 inner side annular grooves are uniformly arranged in the middle of the connecting part at intervals and comprise a first inner side annular groove 3, a second inner side annular groove 5 and a third inner side annular groove.
The oil blanket portion sets up inboard at the centre bore of terminal surface, includes to the central axis be convex oil blanket circle 6 of ridge form, compress tightly groove 15 and spacing ring 8, 6 inner walls of oil blanket circle are provided with wear-resisting gasket 7, compress tightly groove 15 and be the semicircle annular groove, inside cover is equipped with annular spring 9, annular spring 9 is supplementary compresses tightly oil blanket portion, guarantees oil blanket portion and motor spindle 13 periphery and compresses tightly the cooperation with elasticity adjustable mode, spacing ring 8 sets up in compressing tightly the groove 15 outside, prescribes a limit to the position of annular spring 9, it still is provided with bellied spacing ring 10 on connecting portion 12 to compress tightly 15 inboards in groove to guarantee that oil blanket circle 6 is under the tensioning state of being propped up by main shaft 13, still accurately prescribes a limit to the position of annular spring 9 after compressing tightly 15 deformation in groove.
Further embodiment is, metal framework 2 sets up inside oil blanket frame 1 for support oil blanket spare major structure, metal framework 2 is the L type, supports oil blanket frame 1's lateral wall 11 and terminal surface, the terminal surface still is provided with positioning groove, fixes a position when moulding plastics metal framework 2 and oil blanket frame 1 an organic whole and presss from both sides tight metal framework 2.
In a further embodiment, the inner diameter of the dust ring is slightly smaller than the shaft diameter of the motor spindle 13.
In a further embodiment, the wear-resistant gasket 7 is made of PTFE.
In a further embodiment, the inside of the oil seal frame 1 is annularly provided with a reinforcing rib.
In a further embodiment, the size of the inner diameter of the innermost circle of the oil seal ring 6 is smaller than the size of the outer diameter of the motor spindle 13, so that the oil seal ring 6 is tightly attached to the motor spindle 13.
The further embodiment is that the material of the oil seal frame 1 is rubber.
Example 2：
Referring to fig. 3, the embodiment provides a wear-resistant oil seal for a spindle of an electric vehicle, which includes an oil seal frame 1, a metal framework 2, and an annular spring 9.
Specifically, the oil seal frame 1 is annular and comprises an outer side wall 11, an end face 16, a dust-proof part 4, a connecting part 12 and an oil seal part which are integrally connected, the metal framework 2 is embedded in the oil seal frame 1,
the dust-proof part 4 is arranged outside the central hole of the end surface and comprises a dust-proof ring protruding towards the outer side of the end surface,
the connecting portion 12 connects the dust-proof portion 4 with the oil seal portion, and 3 outer annular grooves 14 are uniformly arranged in the middle of the connecting portion at intervals, and the rest of the structure is the same as that of embodiment 1. The outside ring channel is compared in inboard ring channel, forms the ring channel in the outside and inwards compresses, and outside expansion is not for this oil blanket centre bore inner wall is smooth, and the probability of producing the foreign matter is littleer, guarantees oil blanket life.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes, modifications, substitutions and alterations can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, the scope of the present invention being defined by the appended claims and their equivalents.
Claims (8)
1. The utility model provides a wear-resisting oil blanket of electric automobile main shaft, includes oil blanket frame, metal framework and annular spring, its characterized in that:
the oil seal frame is annular and comprises an outer side wall, an end face, a dustproof part, a connecting part capable of being twisted and an oil seal part which are integrally connected, the metal framework is embedded in the oil seal frame,
the dust-proof part is arranged outside the central hole of the end surface and comprises a dust-proof ring protruding towards the outer side of the end surface,
the connecting part connects the dustproof part with the oil seal part, a plurality of annular grooves are uniformly arranged in the middle of the connecting part at intervals,
the oil blanket portion sets up inboard at the centre bore of terminal surface, include to the central axis be convex oil blanket circle of mountain spine form, compress tightly groove and spacing ring, oil blanket circle inner wall is provided with wear-resisting gasket, compress tightly the groove and be half circular ring groove, inside cover is equipped with annular spring, annular spring assists compresses tightly oil blanket portion, and oil blanket portion compresses tightly the cooperation with motor spindle periphery with elasticity adjustable mode, the spacing ring sets up in the groove outside that compresses tightly, prescribes a limit to the position of annular spring, it still is provided with bellied spacing ring on connecting portion to compress tightly the inslot side.
2. The electric automobile main shaft wear-resistant oil seal according to claim 1, characterized in that: the metal framework is arranged inside the oil seal frame, the metal framework is L-shaped and supports the outer side wall and the end face of the oil seal frame, the end face is further provided with a positioning groove, and the metal framework is positioned and clamped when the metal framework and the oil seal frame are integrally molded.
3. The electric automobile main shaft wear-resistant oil seal according to claim 1, characterized in that: the size of the inner diameter of the innermost circle of the oil seal ring is smaller than the size of the outer diameter of the motor spindle.
4. The electric automobile main shaft wear-resistant oil seal according to claim 1, characterized in that: the inner diameter of the dust ring is slightly smaller than the shaft diameter of the motor spindle.
5. The electric automobile main shaft abrasion-resistant oil seal according to claim 1, characterized in that: the wear-resistant gasket is made of PTFE.
6. The electric automobile main shaft wear-resistant oil seal according to claim 1, characterized in that: the annular groove is arranged on the inner wall of the connecting part.
7. The electric automobile main shaft abrasion-resistant oil seal according to claim 1, characterized in that: the annular groove is arranged on the outer wall of the connecting part.
8. The electric automobile main shaft wear-resistant oil seal according to claim 1, characterized in that: and reinforcing ribs are annularly arranged in the oil seal frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220126646.4U CN216951660U (en) | 2022-01-18 | 2022-01-18 | Electric automobile main shaft wear-resisting oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220126646.4U CN216951660U (en) | 2022-01-18 | 2022-01-18 | Electric automobile main shaft wear-resisting oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216951660U true CN216951660U (en) | 2022-07-12 |
Family
ID=82316641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220126646.4U Active CN216951660U (en) | 2022-01-18 | 2022-01-18 | Electric automobile main shaft wear-resisting oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216951660U (en) |
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2022
- 2022-01-18 CN CN202220126646.4U patent/CN216951660U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Floor 4, Building 10, No. 58, Wenxiang East Road, Songjiang District, Shanghai, 200000 Patentee after: Woogi New Materials (Shanghai) Co.,Ltd. Address before: Floor 4, Building 10, No. 58, Wenxiang East Road, Songjiang District, Shanghai, 200000 Patentee before: Woogi Polymer Materials (Shanghai) Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP03 | Change of name, title or address |
Address after: Floor 4, Building 10, No. 58, Wenxiang East Road, Songjiang District, Shanghai, 200000 Patentee after: Woogi Polymer Materials (Shanghai) Co.,Ltd. Address before: 215300 room 3, 138 CHENFENG East Road, Kunshan hi tech Development Zone, Suzhou City, Jiangsu Province Patentee before: Woqi Automotive Technology (Suzhou) Co.,Ltd. |
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| CP03 | Change of name, title or address |