CN215071918U - Motor shaft end sealing structure - Google Patents
Motor shaft end sealing structure Download PDFInfo
- Publication number
- CN215071918U CN215071918U CN202121086766.8U CN202121086766U CN215071918U CN 215071918 U CN215071918 U CN 215071918U CN 202121086766 U CN202121086766 U CN 202121086766U CN 215071918 U CN215071918 U CN 215071918U
- Authority
- CN
- China
- Prior art keywords
- oil seal
- output shaft
- oil
- mounting groove
- seal
- 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
Images
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model relates to the field of motors, in particular to a motor shaft end sealing structure, which comprises an end cover and an output shaft penetrating and extending out of the end cover, wherein the middle of the end cover is provided with a first mounting groove with a diameter larger than that of the output shaft, a double-oil seal structure is arranged in the first mounting groove, and the double-oil seal structure comprises a first oil seal and a second oil seal; the inner ring of the first oil seal is in sliding connection with the output shaft; the inner ring of the second oil seal is in interference fit with the output shaft, the outer ring of the second oil seal bends towards the first oil seal, the end part of the outer ring of the second oil seal is provided with a sealing lip made of flexible materials, the sealing lip is in sliding connection with the first oil seal, and a sealing cavity is formed among the second oil seal, the first oil seal and the output shaft. The utility model discloses set up two oil blanket structures, first oil blanket and second oil blanket constitute labyrinth seal structure jointly, and is more excellent than current single oil blanket protective effect, can reach IP66 or IP 67's protection requirement.
Description
Technical Field
The utility model relates to a motor field, concretely relates to motor shaft end seal structure.
Background
The motor is a device for realizing electric energy conversion or transmission according to an electromagnetic induction law, and generally comprises a shell and an output shaft, wherein the output shaft partially extends out of the shell, a stator and a rotor are arranged in the shell, and the rotor is fixedly connected with the output shaft. Under electromagnetic drive, the rotor rotates relative to the stator and outputs mechanical energy.
Because the inside of the shell is an electromagnetic driving environment, the sealing performance between the output shaft and the shell is very important in order to ensure the energy conversion efficiency and the working stability. Meanwhile, because the rotating speed of the output shaft relative to the shell is high during working, the sealing between the output shaft and the shell is also the difficult point of motor design. The existing motor shaft end sealing structure is poor in protection effect and cannot meet the requirements of customers.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a motor shaft end seal structure.
In order to solve the technical problem, the utility model provides a technical scheme as follows:
a motor shaft end sealing structure comprises an end cover and an output shaft penetrating through and extending out of the end cover, wherein a first mounting groove with the diameter larger than that of the output shaft is formed in the middle of the end cover, a double-oil-seal structure is arranged in the first mounting groove, and the double-oil-seal structure comprises a first oil seal and a second oil seal; the inner ring of the first oil seal is in sliding connection with the output shaft; the inner ring of the second oil seal is in interference fit with the output shaft, the outer ring of the second oil seal bends towards the first oil seal, the end part of the outer ring of the second oil seal is provided with a sealing lip made of flexible materials, the sealing lip is in sliding connection with the first oil seal, and a sealing cavity is formed among the second oil seal, the first oil seal and the output shaft.
Further, one side of the first oil seal, which is far away from the second oil seal, is attached to the bottom surface of the first mounting groove.
Furthermore, a second mounting groove is formed in the first oil seal, and a tightening ring is arranged in the second mounting groove.
Further, the first oil seal is made of rubber, the sealing lip is made of rubber, and the part, except the sealing lip, of the second oil seal is made of rigid material.
The utility model has the advantages that:
the utility model discloses set up two oil blanket structures, first oil blanket and second oil blanket constitute labyrinth seal structure jointly, and is more excellent than current single oil blanket protective effect, can reach IP66 or IP 67's protection requirement.
Drawings
Fig. 1 is a schematic structural diagram of a shaft end sealing structure of a motor according to this embodiment.
Fig. 2 is an enlarged schematic view of a portion a in fig. 1.
In the figure: 1. the end cover 11, the first mounting groove 2, the output shaft 3, the first oil seal 31, the second mounting groove 4, the second oil seal 41, the sealing lip 5 and the sealing cavity.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, a motor shaft end seal structure, include end cover 1 and pass and extend the output shaft 2 of end cover, the centre of end cover 1 is equipped with one 11 of mounting groove that the diameter is greater than output shaft 2, be equipped with two oil blanket structures in one 11 of mounting groove, two oil blanket structures include first oil blanket 3 and second oil blanket 4, and this embodiment realizes the protection of better effect through two oil blanket structures. The outer ring of the first oil seal 3 and the side wall of the first mounting groove 11 are relatively static, the inner ring of the first oil seal is in sliding connection with the output shaft 2, and preferably, the first oil seal 3 is made of rubber; the inner ring of the second oil seal 4 is in interference fit with the output shaft 2, the outer ring of the second oil seal bends towards the first oil seal 3, and the end part of the outer ring of the second oil seal is provided with a sealing lip 41 made of flexible materials, in the embodiment, the sealing lip 41 is preferably made of rubber materials, the part of the second oil seal 4 except the sealing lip 41 is made of rigid materials, and the sealing lip 41 is in sliding connection with the first oil seal 3; and a sealing cavity 5 is formed among the second oil seal 4, the first oil seal 3 and the output shaft 2.
Further preferably, the side of the first oil seal 3 far away from the second oil seal 4 is attached to the bottom surface of the first mounting groove 11, and the first oil seal 3 can be attached to the bottom surface of the first mounting groove 11 more tightly by the extrusion of the second oil seal 4 on the first oil seal 3.
As a further preference, the first oil seal 3 is provided with a second mounting groove 31, preferably, the second mounting groove 31 is a T-shaped groove, a clamping ring 32 is arranged in the second mounting groove, and the clamping ring 32 is used for clamping the first oil seal 3 so as to keep tight sliding connection between the first oil seal 3 and the output shaft 2.
In summary, the above description is only a preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention should be included within the scope of the present invention.
Claims (4)
1. A motor shaft end sealing structure comprises an end cover and an output shaft penetrating through and extending out of the end cover, wherein a first mounting groove with the diameter larger than that of the output shaft is formed in the middle of the end cover; the inner ring of the first oil seal is in sliding connection with the output shaft; the inner ring of the second oil seal is in interference fit with the output shaft, the outer ring of the second oil seal bends towards the first oil seal, the end part of the outer ring of the second oil seal is provided with a sealing lip made of flexible materials, the sealing lip is in sliding connection with the first oil seal, and a sealing cavity is formed among the second oil seal, the first oil seal and the output shaft.
2. The motor shaft end sealing structure according to claim 1, wherein a side of the first oil seal, which is far away from the second oil seal, is attached to the bottom surface of the first mounting groove.
3. The motor shaft end sealing structure according to claim 1 or 2, wherein a second mounting groove is formed in the first oil seal, and a clamping ring is arranged in the second mounting groove.
4. The motor shaft end sealing structure of claim 1, wherein the first oil seal is made of rubber, the sealing lip is made of rubber, and the portion of the second oil seal except the sealing lip is made of rigid material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121086766.8U CN215071918U (en) | 2021-05-20 | 2021-05-20 | Motor shaft end sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121086766.8U CN215071918U (en) | 2021-05-20 | 2021-05-20 | Motor shaft end sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215071918U true CN215071918U (en) | 2021-12-07 |
Family
ID=79212955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121086766.8U Active CN215071918U (en) | 2021-05-20 | 2021-05-20 | Motor shaft end sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215071918U (en) |
-
2021
- 2021-05-20 CN CN202121086766.8U patent/CN215071918U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105262266A (en) | Motor working underwater | |
| CN215071918U (en) | Motor shaft end sealing structure | |
| CN110978038A (en) | Two-degree-of-freedom underwater manipulator | |
| CN216056591U (en) | Waterproof direct-drive motor | |
| CN106224488B (en) | A kind of integrated harmonic speed reducer device of built-in motor | |
| CN210957980U (en) | Bearing motor with automatic aligning and vibration reducing lip seals | |
| CN211230892U (en) | Magnetic suspension integral type fan | |
| CN112271959A (en) | Sealed magnetic suspension motor and handicraft water lamp with same | |
| CN208433841U (en) | A kind of submersible motor | |
| CN219227378U (en) | Marine permanent magnet synchronous motor | |
| CN207835237U (en) | A kind of motor waterproof sealing cushion rubber | |
| CN211720376U (en) | Waterproof motor | |
| CN214337698U (en) | Waterproof sealing motor of golf cart | |
| CN213521703U (en) | Sealed magnetic suspension motor and handicraft water lamp with same | |
| CN212063772U (en) | Waterproof motor with fan | |
| CN211606250U (en) | Wiper control motor | |
| CN215934601U (en) | Good-sealing-performance water-inflow-prevention motor shell of electric vehicle | |
| CN218387055U (en) | Double containment motor protector | |
| CN204168040U (en) | Low-loss machine shaft seal | |
| CN215528758U (en) | Waterproof motor | |
| CN201159211Y (en) | DC brushless water-proof fan | |
| CN215452658U (en) | Outer rotor motor with waterproof function | |
| CN218472901U (en) | Motor with good overall sealing performance | |
| CN211859856U (en) | Dampproofing motor | |
| CN212627497U (en) | Ultrahigh-speed flywheel energy accumulator for electric automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |