CN210744889U - Insulating end cover of motor - Google Patents
Insulating end cover of motor Download PDFInfo
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- CN210744889U CN210744889U CN201922095694.2U CN201922095694U CN210744889U CN 210744889 U CN210744889 U CN 210744889U CN 201922095694 U CN201922095694 U CN 201922095694U CN 210744889 U CN210744889 U CN 210744889U
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- end cover
- hole
- bearing
- insulating
- cover body
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Abstract
The utility model relates to the technical field of motors, in particular to an insulating end cover of a motor, which comprises an end cover body, an insulating sleeve, a bolt, a bearing sleeve arranged in the end cover body, a bearing arranged in the bearing sleeve, an inner cover arranged in the end cover body, an outer cover arranged in the end cover body and an oil thrower disc coaxially arranged with the bearing, wherein the end cover body, the bearing sleeve, the bearing and the oil thrower disc are positioned between the outer cover and the inner cover; the end cover body is provided with a first through hole, the outer cover is provided with a second through hole, the inner cover is provided with a threaded hole, the insulating sleeve is arranged in the first through hole and the second through hole, and the bolt penetrates through the insulating sleeve and then is in threaded connection with the threaded hole. The effective insulation structure is formed between the end cover body and the inner cover, between the end cover body and the outer cover and between the end cover body and the bearing, so that the insulation effect is good, the process is simple, the cost is low, the yield of the motor is good, and the service life is long.
Description
Technical Field
The utility model belongs to the technical field of the motor technique and specifically relates to indicate the insulating end cover of a motor.
Background
At present, because a machine base, an end cover body, a bearing and a rotor of the motor are closed loops, shaft current is easy to generate, and when the shaft current passes through the bearing, the bearing is subjected to electric corrosion, the service life of the bearing is influenced, and the normal use of the motor is influenced. Therefore, the drawbacks are obvious, and a solution is needed.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, an object of the utility model is to provide an insulating end cover of motor that insulating effect is stable and reliable, long service life.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an insulating end cover of a motor comprises an end cover body, an insulating sleeve, a bolt, a bearing sleeve arranged in the end cover body, a bearing arranged in the bearing sleeve, an inner cover arranged at one end of the end cover body, an outer cover arranged at the other end of the end cover body and an oil thrower arranged coaxially with the bearing, wherein the oil thrower is positioned at one side of the bearing close to the outer cover; the end cover is characterized in that a first through hole is axially formed in the body of the end cover, a second through hole communicated with the first through hole is axially formed in the outer cover, a threaded hole communicated with the first through hole is axially formed in the inner cover, the insulating sleeve is arranged in the first through hole and the second through hole, and the bolt penetrates through the insulating sleeve and then is in threaded connection with the threaded hole.
Further, the insulating ring is an insulating film, and the insulating film is wound on the outer wall of the bearing sleeve.
Further, a spring washer is arranged between the screw head of the bolt and the outer cover.
Furthermore, the insulating end cover of the motor further comprises an elastic retainer ring positioned on one side, far away from the bearing, of the oil thrower, and the elastic retainer ring is used for stopping the bearing and the oil thrower on the rotating shaft.
Furthermore, interference fit is formed between the inner wall of the first through hole and the inner wall of the second through hole and the insulating sleeve.
The utility model has the advantages that: during the equipment, earlier with the inner cup, bearing and disc suit are outside the pivot in proper order, make the inner cup, bearing and the coaxial setting of disc, suit the bearing housing outside the bearing, install the insulating collar in the outer wall of bearing housing again, suit the end cover body outside the bearing housing, make the insulating collar be located between bearing housing and the end cover body, install two insulating washers respectively between the contact surface of inner cup and end cover body and between the contact surface of end cover body and enclosing cover, the one end of inner cup is kept away from to the enclosing cover lid in the end cover body, make the screw hole, the coaxial setting of first through-hole and second through-hole and intercommunication, install insulating sleeve in first through-hole and second through-hole at last, run through insulating sleeve back and screw hole threaded connection through the bolt, thereby cover including locking end cover body and enclosing cover, and then realize the equipment of the insulating end cover of motor. The utility model discloses a between end cover body and the inner cup, between end cover body and the enclosing cover and form effectual insulation system between end cover body and the bearing, it is insulating effectual, and simple process, with low costs, the yield of motor is good, long service life.
Drawings
Fig. 1 is a schematic view of the semi-section structure of the present invention.
Description of reference numerals:
1. an inner cover; 2. an insulating washer; 3. an end cap body; 4. an insulating sleeve; 5. an outer cover; 6. a spring washer; 7. a bolt; 8. a bearing housing; 9. an insulating ring; 10. a bearing; 11. an oil slinger; 12. a circlip; 13. a rotating shaft.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
As shown in fig. 1, the utility model provides an insulating end cover of motor, it includes end cover body 3, insulating sleeve 4, bolt 7, install bearing housing 8 in end cover body 3, install bearing 10 in bearing housing 8, install in inner cup 1 of one end of end cover body 3, install in the enclosing cover 5 of the other end of end cover body 3 and the disc 11 of slinging coaxial arrangement with bearing 10, the disc 11 of slinging is located one side that bearing 10 is close to enclosing cover 5, end cover body 3, bearing housing 8, bearing 10 and disc 11 all are located between enclosing cover 5 and inner cup 1, be provided with insulating ring 9 between the outer wall of bearing housing 8 and the inner wall of end cover body 3, be provided with insulating washer 2 between enclosing cover 5 and end cover body 3, between inner cup 1 and end cover body 3; the end cover comprises an end cover body 3 and is characterized in that a first through hole is formed in the axial direction of the end cover body 3, a second through hole communicated with the first through hole is formed in the axial direction of an outer cover 5, a threaded hole communicated with the first through hole is formed in the axial direction of an inner cover 1, an insulating sleeve 4 is arranged in the first through hole and the second through hole, and a bolt 7 penetrates through the insulating sleeve 4 and then is in threaded connection with the threaded hole.
During assembly, the inner cover 1, the bearing 10 and the oil thrower 11 are sequentially sleeved outside the rotating shaft 13, so that the inner cover 1, the bearing 10 and the oil thrower 11 are coaxially arranged, the bearing sleeve 8 is sleeved outside the bearing 10, the insulating ring 9 is arranged on the outer wall of the bearing sleeve 8, the end cover body 3 is sleeved outside the bearing sleeve 8, so that the insulating ring 9 is positioned between the bearing sleeve 8 and the end cover body 3, the two insulating gaskets 2 are respectively arranged between the contact surfaces of the inner cover 1 and the end cover body 3 and between the contact surfaces of the end cover body 3 and the outer cover 5, the outer cover 5 is covered at one end of the end cover body 3 far away from the inner cover 1, so that the threaded hole, the first through hole and the second through hole are coaxially arranged and communicated, finally the insulating sleeve 4 is arranged in the first through hole and the second through hole and is in threaded connection with the threaded hole after penetrating through the insulating sleeve 4 through the bolt 7, and then the assembly of the insulating end cover of the motor is realized. The utility model discloses a between end cover body 3 and the inner cup 1, between end cover body 3 and the enclosing cover 5 and form effectual insulation system between end cover body 3 and the bearing 10, it is insulating effectual, avoided the motor to produce the axle current and cause the galvanic corrosion to bearing 10, prolonged bearing 10's life, and simple process, it is with low costs, the yield of motor is good, long service life.
In this embodiment, the insulating ring 9 is an insulating film, preferably, the insulating film is an insulating film, the insulating film is wound on the outer wall of the bearing sleeve 8, and the insulating film has a simple structure, is convenient to assemble, is low in production and maintenance cost, and has a good insulating effect.
In this embodiment, be provided with spring washer 6 between the nut head of bolt 7 and enclosing cover 5, through addding spring washer 6, strengthen threaded occlusal force, prevent that bolt 7 is not hard up, guaranteed that inner cup 1, end cover body 3 and enclosing cover 5 can connect firmly.
In this embodiment, the insulating end cover of the motor further includes a circlip 12 located on a side of the oil thrower plate 11 away from the bearing 10, and the circlip 12 is used for stopping the bearing 10 and the oil thrower plate 11 on the rotating shaft 13. By additionally arranging the elastic retainer ring 12, the bearing 10 and the oil thrower disc 11 are effectively limited on the rotating shaft 13, and the stability of the bearing 10 and the oil thrower disc 11 on the rotating shaft 13 is improved.
In this embodiment, the inner walls of the first through hole and the second through hole are in interference fit with the insulating sleeve 4, so that the insulating sleeve 4 can be firmly installed in the first through hole and the second through hole.
Preferably, the outer cover 5 is provided with a plurality of first heat dissipation holes in an annular array, and the inner cover 1 is provided with a plurality of second heat dissipation holes in an annular array; through addding first louvre and second louvre, be convenient for right the utility model discloses dispel the heat, the radiating effect is good.
Preferably, the surface of the outer cover 5 and the surface of the inner cover 1 are coated with an anti-corrosion layer, the anti-corrosion layer is an anti-corrosion coating, and the thickness of the anti-corrosion layer is 0.5mm-1 mm. By additionally arranging the anti-corrosion layer, the anti-corrosion performance of the outer cover 5 and the inner cover 1 is effectively improved, and the service life of the outer cover 5 and the service life of the inner cover 1 can be prolonged.
Preferably, the inner cap 1 and the outer cap 5 are each substantially disc-shaped.
All the technical features in the embodiment can be freely combined according to actual needs.
The above-mentioned embodiment is the utility model discloses the implementation scheme of preferred, in addition, the utility model discloses can also realize by other modes, any obvious replacement is all within the protection scope of the utility model under the prerequisite that does not deviate from this technical scheme design.
Claims (5)
1. An insulating end cover of motor which characterized in that: the oil thrower is positioned on one side of the bearing close to the outer cover, the end cover body, the bearing sleeve, the bearing and the oil thrower are positioned between the outer cover and the inner cover, insulating rings are arranged between the outer wall of the bearing sleeve and the inner wall of the end cover body, and insulating gaskets are arranged between the outer cover and the end cover body and between the inner cover and the end cover body; the end cover comprises an end cover body and is characterized in that a first through hole is formed in the axial direction of the end cover body, a second through hole communicated with the first through hole is formed in the axial direction of the outer cover, a threaded hole communicated with the first through hole is formed in the axial direction of the inner cover, the insulating sleeve is arranged in the first through hole and the second through hole, and the bolt penetrates through the insulating sleeve and then is in threaded connection with the threaded hole.
2. The insulated end cap of an electrical machine of claim 1, wherein: the insulating ring is an insulating film, and the insulating film is wound on the outer wall of the bearing sleeve.
3. The insulated end cap of an electrical machine of claim 1, wherein: and a spring washer is arranged between the screw head of the bolt and the outer cover.
4. The insulated end cap of an electrical machine of claim 1, wherein: the insulating end cover of the motor further comprises an elastic retainer ring positioned on one side, far away from the bearing, of the oil thrower disc, and the elastic retainer ring is used for stopping the bearing and the oil thrower disc on the rotating shaft.
5. The insulated end cap of an electrical machine of claim 1, wherein: and the inner walls of the first through hole and the second through hole are in interference fit with the insulating sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922095694.2U CN210744889U (en) | 2019-11-27 | 2019-11-27 | Insulating end cover of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922095694.2U CN210744889U (en) | 2019-11-27 | 2019-11-27 | Insulating end cover of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210744889U true CN210744889U (en) | 2020-06-12 |
Family
ID=71011484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922095694.2U Active CN210744889U (en) | 2019-11-27 | 2019-11-27 | Insulating end cover of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210744889U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113777457A (en) * | 2021-10-22 | 2021-12-10 | 卧龙电气南阳防爆集团股份有限公司 | Online insulation detection structure of insulation bearing device |
-
2019
- 2019-11-27 CN CN201922095694.2U patent/CN210744889U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113777457A (en) * | 2021-10-22 | 2021-12-10 | 卧龙电气南阳防爆集团股份有限公司 | Online insulation detection structure of insulation bearing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230327 Address after: Building 1, No. 93, Machong Avenue, Machong Town, Dongguan City, Guangdong Province, 523000 Patentee after: Guangdong Global Electric Machinery Technology Co.,Ltd. Address before: No. 93, Machong Avenue, Machong Town, Dongguan City, Guangdong Province, 523000 Patentee before: GUANGDONG DONGGUAN ELECTRIC MOTOR Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231010 Address after: No. 93 Mayong Avenue, Mayong Town, Dongguan City, Guangdong Province, 523141 Patentee after: GUANGDONG DONGGUAN ELECTRIC MOTOR Co.,Ltd. Address before: Building 1, No. 93, Machong Avenue, Machong Town, Dongguan City, Guangdong Province, 523000 Patentee before: Guangdong Global Electric Machinery Technology Co.,Ltd. |