CN109951010A - A kind of insulation leak-proof arrangement of ac variable frequency speed regulation braking motor - Google Patents
A kind of insulation leak-proof arrangement of ac variable frequency speed regulation braking motor Download PDFInfo
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- CN109951010A CN109951010A CN201910339322.1A CN201910339322A CN109951010A CN 109951010 A CN109951010 A CN 109951010A CN 201910339322 A CN201910339322 A CN 201910339322A CN 109951010 A CN109951010 A CN 109951010A
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- bearing
- housing
- cover
- end cap
- bearing holder
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Abstract
The present invention relates to a kind of insulation leak-proof arrangements of ac variable frequency speed regulation braking motor, it is characterized by comprising floating bearing, bearing holder (housing, cover) and end caps, the rotating shaft and floating bearing of variable-frequency motor cooperate, floating bearing and bearing holder (housing, cover) assembly are arranged on end cap, are locked between the bearing holder (housing, cover) and end cap by bolt；Using the insulation system is used in the case of conventional bearing, cost can reduce；Bearing holder (housing, cover) bearing profile is isolated by no latitude band with end cap, and the locking between bearing holder (housing, cover) and end cap, which is provided with the first insulating washer, insulation sleeve and the second insulating washer, ensure that being isolated between bolt and end cap；The insulation system, it is at low cost, it is suitble to promote the use of；A large amount of lubricating oil can fall again the side of tapered roller bearing when by increasing tapered roller bearing lubricating oil being flown out in tangential direction in rotary course, avoid lubricating oil and largely leak from the other side.
Description
Technical field
The present invention relates to alternating current generator insulation technology field more particularly to a kind of insulation of ac variable frequency speed regulation braking motor
Structure.
Background technique
The current waveform of variable-frequency motor is unstable, and rotor is easy to sense shaft current, therefore generally all sets on variable-frequency motor
It is equipped with insulation system；General alternating-current variable frequency motor insulation system realizes insulation, but ceramic bearing using ceramic bearing
It is at high cost；Therefore it needs to develop new insulation system on alternating-current variable frequency motor, using conventional bearing, realize
Insulation between rotor and end cap.
Lubricating oil is used in various types automobile, on mechanical equipment to reduce friction, protection is mechanical and the liquid of workpiece
Or semisolid lubricants, the effects of mainly playing lubrication, cooling, antirust, cleaning, sealing and buffer；Motor bearings is in high speed rotation
During need to add some lubricating oil bearing be lubricated, instruction prevents from moistening using seal washer in traditional technique
Lubricating oil liquid is leaked from high-speed rotating bearing, but this technology cannot entirely prevent oil leakage phenomenon, especially body
When shaking the generation aging of larger and sealing ring, oil leakage phenomenon is particularly acute, it is therefore desirable to a kind of technical side changed from structure
Case reduces the leakage of lubricating oil.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of insulation leak-proof arrangement of ac variable frequency speed regulation braking motor,
General ac variable frequency speed regulation braking motor is able to solve to hold using ceramic bearing insulation costs height and bearing addition lubricating oil
The problem of easily leaking.
In order to solve the above technical problems, the technical solution of the present invention is as follows: a kind of insulation of ac variable frequency speed regulation braking motor
Leak-proof arrangement, innovative point are: including floating bearing, bearing holder (housing, cover) and end cap, the rotating shaft and floating bearing of variable-frequency motor
Cooperation, floating bearing and bearing holder (housing, cover) assembly are arranged on end cap, are locked between the bearing holder (housing, cover) and end cap by bolt；
The floating bearing includes deep groove ball bearing and tapered roller bearing, and deep groove ball bearing and tapered roller bearing are adjacent and all
It is installed in the bearing hole of bearing holder (housing, cover), deep groove ball bearing is consistent with tapered roller bearing aperture, and the rotating shaft of motor passes through zanjon
Ball bearing and tapered roller bearing have simultaneously connected two bearings；The two ends of the bearing hole of bearing holder (housing, cover) is mounted on oil baffle, bearing holder (housing, cover)
Outside is equipped with end cap, and a seal washer is equipped between end cap and the bearing hole of bearing holder (housing, cover)；And receiving is provided on end cap
The through-hole that rotating shaft passes through；
No latitude band is provided on the axial outer profile of the bearing holder (housing, cover), the axial outer profile of the bearing holder (housing, cover) passes through no latitude band and end
Lid cooperation；The radial end face of the bearing holder (housing, cover) is provided with the side of the first insulating washer isolation bearing set radial end face and end cap；
It is provided with the threaded hole with bolt cooperation on the bearing holder (housing, cover), the through-hole with bolt cooperation is provided on the end cap；The spiral shell
It is nested on the outer profile of bolt between the bolt and the through-hole on end cap by being threadedly engaged locking between bolt and bearing holder (housing, cover)
There is the through-hole of insulation sleeve isolation bolt and end cap；The end of the bolt is provided with nut and the nut passes through the second felt pad
Circle locks bearing holder (housing, cover) and end cap, realizes being isolated for nut and end cap by the second felt pad.
Further, the end cap is in truncated conical shape, and end cap is embedded in the bearing hole of bearing holder (housing, cover), is provided on bearing holder (housing, cover)
Tank filler sleeve and oil discharge outlet.
Further, outer profile is provided with a groove, nothing on the axial periphery that the bearing holder (housing, cover) and end cap cooperate
Latitude band is arranged in the groove.
The present invention has the advantages that
1) insulation system is used using conventional bearing in the present invention, can reduce cost；Bearing holder (housing, cover) bearing wheel
Exterior feature is isolated by no latitude band with end cap, and the locking between bearing holder (housing, cover) and end cap is provided with the first insulating washer, insulation sleeve and second
Insulating washer ensure that being isolated between bolt and end cap；The insulation system, it is at low cost, it can be using conventional floating bearing
In the case where realize variable-frequency motor rotor and end cap between insulation, be suitble to promote the use of.
2) by increasing tapered roller bearing lubricating oil is flown out in tangential direction in rotary course in the present invention
When a large amount of lubricating oil can fall again the side of tapered roller bearing, avoid lubricating oil and largely leaked from the other side.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a kind of schematic diagram of the insulation leak-proof arrangement of ac variable frequency speed regulation braking motor of the invention.
Specific embodiment
The following examples can make professional and technical personnel that the present invention be more fully understood, but therefore not send out this
It is bright to be limited among the embodiment described range.
A kind of insulation leak-proof arrangement of ac variable frequency speed regulation braking motor as shown in Figure 1, including floating bearing 1, axis
Bearing sleeve 2 and end cap 3, the rotating shaft and floating bearing 1 of variable-frequency motor cooperate, and floating bearing 1 and the assembly of bearing holder (housing, cover) 2 are arranged in end cap
On 3, locked between the bearing holder (housing, cover) 2 and end cap 3 by bolt 26.
Floating bearing 1 includes deep groove ball bearing 11 and tapered roller bearing 12, deep groove ball bearing 11 and tapered roller bearing
12 is adjacent and be all installed in the bearing hole of bearing holder (housing, cover) 2, and deep groove ball bearing 11 is consistent with 12 aperture of tapered roller bearing, motor
Rotating shaft passes through deep groove ball bearing 11 and tapered roller bearing 12 and has connected two bearings；The two ends of the bearing hole of bearing holder (housing, cover) 2 is pacified
Outside equipped with 13 bearing holder (housing, cover) of oil baffle is equipped with end cap 3, and it is close to be equipped with one between end cap 3 and the bearing hole of bearing holder (housing, cover) 2
Seal washer；And it is provided on end cap 3 and accommodates the through-hole that rotating shaft passes through.
No latitude band 21 is provided on the axial outer profile of bearing holder (housing, cover) 2, the axial outer profile of the bearing holder (housing, cover) 2 passes through no latitude band
21 cooperate with end cap 3；The radial end face of the bearing holder (housing, cover) 2 be provided with 22 isolation bearing of the first insulating washer cover 2 radial end faces with
The side of end cap 3.
It is provided with the threaded hole with bolt cooperation on bearing holder (housing, cover) 2, is provided with the through-hole cooperated with bolt 22 on the end cap 3；Institute
It states to pass through between bolt 26 and bearing holder (housing, cover) 2 and is threadedly engaged locking, in bolt 26 between the through-hole on the bolt 22 and end cap 3
The through-hole of an insulation sleeve 23 isolation bolt 22 and end cap is nested on outer profile；The end of the bolt 26 be provided with nut 24 and
The nut 24 is locked bearing holder (housing, cover) 2 and end cap 3 by the second insulating washer 25, realizes nut 24 and end by the second felt pad 25
The isolation of lid 3.
End cap 3 is in truncated conical shape, and end cap 3 is embedded in the bearing hole of bearing holder (housing, cover) 2, and tank filler sleeve 31 is provided on bearing holder (housing, cover) 2
With oil discharge outlet 32.
Outer profile is provided with a groove on the axial periphery that bearing holder (housing, cover) 2 and end cap 3 cooperate, the no setting of latitude band 21 exists
In the groove.
It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, above-described embodiment and explanation
It is merely illustrated the principles of the invention described in book, without departing from the spirit and scope of the present invention, the present invention also has
Various changes and modifications, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention
It is defined by the appending claims and its equivalent thereof.
Claims (3)
1. a kind of insulation leak-proof arrangement of ac variable frequency speed regulation braking motor, it is characterised in that: including floating bearing, bearing holder (housing, cover)
And end cap, the rotating shaft and floating bearing of variable-frequency motor cooperate, floating bearing and bearing holder (housing, cover) assembly are arranged on end cap, the axis
It is locked between bearing sleeve and end cap by bolt；
The floating bearing includes deep groove ball bearing and tapered roller bearing, and deep groove ball bearing and tapered roller bearing are adjacent and all
It is installed in the bearing hole of bearing holder (housing, cover), deep groove ball bearing is consistent with tapered roller bearing aperture, and the rotating shaft of motor passes through zanjon
Ball bearing and tapered roller bearing have simultaneously connected two bearings；The two ends of the bearing hole of bearing holder (housing, cover) is mounted on oil baffle, bearing holder (housing, cover)
Outside is equipped with end cap, and a seal washer is equipped between end cap and the bearing hole of bearing holder (housing, cover)；And receiving is provided on end cap
The through-hole that rotating shaft passes through；
No latitude band is provided on the axial outer profile of the bearing holder (housing, cover), the axial outer profile of the bearing holder (housing, cover) passes through no latitude band and end
Lid cooperation；The radial end face of the bearing holder (housing, cover) is provided with the side of the first insulating washer isolation bearing set radial end face and end cap；
It is provided with the threaded hole with bolt cooperation on the bearing holder (housing, cover), the through-hole with bolt cooperation is provided on the end cap；The spiral shell
It is nested on the outer profile of bolt between the bolt and the through-hole on end cap by being threadedly engaged locking between bolt and bearing holder (housing, cover)
There is the through-hole of insulation sleeve isolation bolt and end cap；The end of the bolt is provided with nut and the nut passes through the second felt pad
Circle locks bearing holder (housing, cover) and end cap, realizes being isolated for nut and end cap by the second felt pad.
2. a kind of insulation leak-proof arrangement of ac variable frequency speed regulation braking motor according to claim 1, it is characterised in that:
The end cap is in truncated conical shape, and end cap is embedded in the bearing hole of bearing holder (housing, cover), and tank filler sleeve and oil discharge outlet are provided on bearing holder (housing, cover).
3. a kind of insulation leak-proof arrangement of ac variable frequency speed regulation braking motor according to claim 1, it is characterised in that:
Outer profile is provided with a groove on the bearing holder (housing, cover) and the axial periphery of end cap cooperation, no latitude band is arranged in the groove
It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910339322.1A CN109951010A (en) | 2019-04-25 | 2019-04-25 | A kind of insulation leak-proof arrangement of ac variable frequency speed regulation braking motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910339322.1A CN109951010A (en) | 2019-04-25 | 2019-04-25 | A kind of insulation leak-proof arrangement of ac variable frequency speed regulation braking motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109951010A true CN109951010A (en) | 2019-06-28 |
Family
ID=67016204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910339322.1A Pending CN109951010A (en) | 2019-04-25 | 2019-04-25 | A kind of insulation leak-proof arrangement of ac variable frequency speed regulation braking motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109951010A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114499012A (en) * | 2021-12-30 | 2022-05-13 | 西安中车永电捷力风能有限公司 | Insulating end cover structure suitable for offshore wind driven generator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1844688A (en) * | 2006-04-25 | 2006-10-11 | 江西特种电机股份有限公司 | Insulated bearing device and insulation method thereof |
| CN201590705U (en) * | 2009-08-17 | 2010-09-22 | 南车株洲电力机车有限公司 | Insulated bearing sleeve used for motor |
| CN203339854U (en) * | 2013-06-27 | 2013-12-11 | 上海申富电机有限公司 | Motor bearing insulation structure |
| CN205212603U (en) * | 2015-11-25 | 2016-05-04 | 河北电机股份有限公司 | Motor bearing organizes insulation system |
| CN205479332U (en) * | 2016-03-24 | 2016-08-17 | 如皋市非标轴承有限公司 | Leak protection oil bearing device |
| CN210137231U (en) * | 2019-04-25 | 2020-03-10 | 南通雄亚机电制造有限公司 | Insulating oil leakage prevention structure of alternating-current variable-frequency speed-regulating brake motor |
-
2019
- 2019-04-25 CN CN201910339322.1A patent/CN109951010A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1844688A (en) * | 2006-04-25 | 2006-10-11 | 江西特种电机股份有限公司 | Insulated bearing device and insulation method thereof |
| CN201590705U (en) * | 2009-08-17 | 2010-09-22 | 南车株洲电力机车有限公司 | Insulated bearing sleeve used for motor |
| CN203339854U (en) * | 2013-06-27 | 2013-12-11 | 上海申富电机有限公司 | Motor bearing insulation structure |
| CN205212603U (en) * | 2015-11-25 | 2016-05-04 | 河北电机股份有限公司 | Motor bearing organizes insulation system |
| CN205479332U (en) * | 2016-03-24 | 2016-08-17 | 如皋市非标轴承有限公司 | Leak protection oil bearing device |
| CN210137231U (en) * | 2019-04-25 | 2020-03-10 | 南通雄亚机电制造有限公司 | Insulating oil leakage prevention structure of alternating-current variable-frequency speed-regulating brake motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114499012A (en) * | 2021-12-30 | 2022-05-13 | 西安中车永电捷力风能有限公司 | Insulating end cover structure suitable for offshore wind driven generator |
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