CN203691121U - External rotating rectifier AC motor with oil-leak-proof device - Google Patents
External rotating rectifier AC motor with oil-leak-proof device Download PDFInfo
- Publication number
- CN203691121U CN203691121U CN201320883221.9U CN201320883221U CN203691121U CN 203691121 U CN203691121 U CN 203691121U CN 201320883221 U CN201320883221 U CN 201320883221U CN 203691121 U CN203691121 U CN 203691121U
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- Prior art keywords
- sliding bearing
- transition disk
- rotor
- motor
- rectifier
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- Expired - Lifetime
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- 230000007704 transition Effects 0.000 claims abstract description 41
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 238000004891 communication Methods 0.000 claims description 3
- 238000005461 lubrication Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 6
- 238000007667 floating Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model discloses an external rotating rectifier AC motor with an oil-leak-proof device, and solves the problem that the sliding bearing lubrication leaks to the external device. The external rotating rectifier AC motor with the oil-leak-proof device includes: a closed sliding bearing cavity (6) which is arranged inside a motor end cover type sliding bearing seat (5); a bearing sealing ring (8) which is arranged between a central hole inner side of a sliding bearing outer cover (7) and a motor rotor; an external rotation rectifier (4) which is arranged at an end part of a non-drive end of the motor rotor; a transition plate (9) which is arranged outside the sliding bearing outer cover; a rotating rectifier cover (10) which is connected with outside of the transition plate; an annular groove (14) which is arranged on the transition plate; and air inlets (16) which are evenly distributed on the circumference of an annular boss (15). The air inlets makes an annular pressure balance air cavity (11) be connected with air, wherein the cavity is formed between the sliding bearing outer cover and the transition plate. The external rotating rectifier AC motor with the oil-leak-proof device is simple in structure, and ensures the normal work of the AC motor.
Description
Technical field
The present invention relates to a kind of external rotary rectifier alternating current machine, particularly a kind of external rotary rectifier alternating current machine of end cover type sliding bearing lubricating oil to its external connection apparatus seepage that prevent.
Background technology
At present, high-power AC motor operated by rotary motion has rotating rectifier, and adopts sliding bearing.For shortening the length of whole motor and being convenient to the maintenance of rotating rectifier, rotating rectifier is generally loaded on the end of rotor.For ensureing degree of protection, rotating rectifier generally adopts enclosed construction, and rotating rectifier guard shield is installed on the outer bearing cover of sliding bearing.In the time that rotating rectifier rotates with rotor high-speed, the outer bearing cover of sliding bearing and rotating shaft junction can form negative pressure, after causing bearing oil constantly to ooze out, enter in the closed cavity of rotating rectifier of sealing, had influence on the normal work of whole alternating current machine.
Summary of the invention
The invention provides a kind of external rotary rectifier alternating current machine with anti-oil leakage device, solved the technical problem of existing sliding bearing lubricating oil to its external connection apparatus seepage.
The present invention solves above technical problem by the following technical programs:
A kind of external rotary rectifier alternating current machine with anti-oil leakage device, comprise electric machine stand, in electric machine stand, be provided with motor stator, in motor stator, be provided with rotor, the anti-drive end of rotor is movably arranged in electric motor end cap formula plain bearing housing, in electric motor end cap formula plain bearing housing, be provided with the sliding bearing inner chamber of sealing, arranged outside at the sliding bearing inner chamber sealing has sliding bearing enclosing cover, inside the centre bore of sliding bearing enclosing cover and between rotor, be provided with bearing sealed ring, be provided with external rotary rectifier in the end of the anti-drive end of rotor, there is transition disk in the arranged outside of sliding bearing enclosing cover, be connected with rotating rectifier guard shield in the outside of transition disk, the centre bore of transition disk is socketed in the rotating shaft of rotor, between the inner side of centre bore of transition disk and the rotating shaft of rotor, be provided with transition disk sealing ring, on transition disk, be provided with annular groove, on the cylindrical of transition disk, be provided with annular boss, on annular boss, be uniformly distributed with air admission hole along the circumference, air admission hole is by annular pressure balance air cavity and the air communication that form between sliding bearing enclosing cover and transition disk.
On the cylindrical of transition disk, be provided with positioning spigot.
The transition disk of the arranged outside at sliding bearing enclosing cover of the present invention is installed between the connected rotating rectifier of bearing end cover, the air admission hole being uniformly distributed along the circumference on its annular boss imports to the air in atmosphere in the closed cavity forming between transition disk and bearing end cover, to be equilibrated at the outer bearing cover of sliding bearing and the negative pressure air pressure that rotating shaft junction forms, stop bearing oil constantly to ooze out and enter rotating rectifier shroud interior, the present invention can transform on sliding bearing original base, simple in structure, with low cost, ensure the normal work of alternating current machine.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of the closed cavity of rotating rectifier of the present invention;
Fig. 3 be transition disk 9 of the present invention structural representation;
Fig. 4 is the structural representation of cutting open along axis of transition disk 9 of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail:
A kind of external rotary rectifier alternating current machine with anti-oil leakage device, comprise electric machine stand 1, in electric machine stand 1, be provided with motor stator 2, in motor stator 2, be provided with rotor 3, the anti-drive end of rotor 3 is movably arranged in electric motor end cap formula plain bearing housing 5, in electric motor end cap formula plain bearing housing 5, be provided with the sliding bearing inner chamber 6 of sealing, arranged outside at the sliding bearing inner chamber 6 sealing has sliding bearing enclosing cover 7, inside the centre bore of sliding bearing enclosing cover 7 and between rotor 3, be provided with bearing sealed ring 8, be provided with external rotary rectifier 4 in the end of the anti-drive end of rotor 3, there is transition disk 9 in the arranged outside of sliding bearing enclosing cover 7, be connected with rotating rectifier guard shield 10 in the outside of transition disk 9, the centre bore 12 of transition disk 9 is socketed in the rotating shaft of rotor 3, between the inner side of centre bore 12 of transition disk 9 and the rotating shaft of rotor 3, be provided with transition disk sealing ring 13, on transition disk 9, be provided with annular groove 14, on the cylindrical of transition disk 9, be provided with annular boss 15, on annular boss 15, be uniformly distributed with air admission hole 16 along the circumference, air admission hole 16 is by annular pressure balance air cavity 11 and the air communication that form between sliding bearing enclosing cover 7 and transition disk 9.
On the cylindrical of transition disk 9, be provided with positioning spigot 17.
Transition disk of the present invention 9 and end cover type sliding bearing enclosing cover bolt or directly and sliding bearing enclosing cover entirety be processed into, between transition disk 9 and rotating shaft, overlap floating seal ring, external connection apparatus and this transition apparatus bolt.Described transition disk 9 adopts quality steel plate to be processed into, and between bearing end cover, leave less space, on the annular boss 15 arranging on the cylindrical of transition disk 9, being uniformly distributed with air admission hole 16 along the circumference communicates with atmosphere, in the enclosed cavity that makes to form between transition disk and bearing end cover, be full of air, for being equilibrated at the outer bearing cover of sliding bearing and the negative pressure air pressure that rotating shaft junction forms, floating seal ring is pre-formed with resin, is standard component.
Claims (2)
1. the external rotary rectifier alternating current machine with anti-oil leakage device, comprise electric machine stand (1), in electric machine stand (1), be provided with motor stator (2), in motor stator (2), be provided with rotor (3), the anti-drive end of rotor (3) is movably arranged in electric motor end cap formula plain bearing housing (5), in electric motor end cap formula plain bearing housing (5), be provided with the sliding bearing inner chamber (6) of sealing, arranged outside at the sliding bearing inner chamber (6) sealing has sliding bearing enclosing cover (7), inside the centre bore of sliding bearing enclosing cover (7) and between rotor (3), be provided with bearing sealed ring (8), be provided with external rotary rectifier (4) in the end of the anti-drive end of rotor (3), it is characterized in that, there is transition disk (9) in the arranged outside of sliding bearing enclosing cover (7), be connected with rotating rectifier guard shield (10) in the outside of transition disk (9), the centre bore (12) of transition disk (9) is socketed in the rotating shaft of rotor (3), between the inner side of centre bore (12) of transition disk (9) and the rotating shaft of rotor (3), be provided with transition disk sealing ring (13), on transition disk (9), be provided with annular groove (14), on the cylindrical of transition disk (9), be provided with annular boss (15), on annular boss (15), be uniformly distributed with air admission hole (16) along the circumference, air admission hole (16) is by annular pressure balance air cavity (11) and the air communication that form between sliding bearing enclosing cover (7) and transition disk (9).
2. a kind of external rotary rectifier alternating current machine with anti-oil leakage device according to claim 1, is characterized in that, is provided with positioning spigot (17) on the cylindrical of transition disk (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320883221.9U CN203691121U (en) | 2013-12-31 | 2013-12-31 | External rotating rectifier AC motor with oil-leak-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320883221.9U CN203691121U (en) | 2013-12-31 | 2013-12-31 | External rotating rectifier AC motor with oil-leak-proof device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203691121U true CN203691121U (en) | 2014-07-02 |
Family
ID=51012981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320883221.9U Expired - Lifetime CN203691121U (en) | 2013-12-31 | 2013-12-31 | External rotating rectifier AC motor with oil-leak-proof device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203691121U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762774A (en) * | 2013-12-31 | 2014-04-30 | 中船重工电机科技股份有限公司 | Externally-arranged type rotating rectifier alternating current motor with oil-leakage preventing device |
| CN114857177A (en) * | 2022-04-29 | 2022-08-05 | 大连日牵电机有限公司 | Air pressure equalization structure of rolling bearing for traction motor |
-
2013
- 2013-12-31 CN CN201320883221.9U patent/CN203691121U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762774A (en) * | 2013-12-31 | 2014-04-30 | 中船重工电机科技股份有限公司 | Externally-arranged type rotating rectifier alternating current motor with oil-leakage preventing device |
| CN114857177A (en) * | 2022-04-29 | 2022-08-05 | 大连日牵电机有限公司 | Air pressure equalization structure of rolling bearing for traction motor |
| CN114857177B (en) * | 2022-04-29 | 2023-10-10 | 大连日牵电机有限公司 | Air pressure balancing structure of rolling bearing for traction motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |
|
| CX01 | Expiry of patent term |