CN103762774A - Externally-arranged type rotating rectifier alternating current motor with oil-leakage preventing device - Google Patents
Externally-arranged type rotating rectifier alternating current motor with oil-leakage preventing device Download PDFInfo
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- CN103762774A CN103762774A CN201310745135.6A CN201310745135A CN103762774A CN 103762774 A CN103762774 A CN 103762774A CN 201310745135 A CN201310745135 A CN 201310745135A CN 103762774 A CN103762774 A CN 103762774A
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- sliding bearing
- transition disk
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- alternating current
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Abstract
The invention discloses an externally-arranged type rotating rectifier alternating current motor with an oil-leakage preventing device. The externally-arranged type rotating rectifier alternating current motor solves the problem that lubricating oil of an existing sliding bearing is leaked to a device externally connected with the sliding bearing, and is characterized in that a closed sliding bearing inner cavity (6) is formed in a motor end cover type sliding bearing block (5), a bearing sealing ring (8) is arranged between the inner side of a center hole of a sliding bearing outer cover (7) and a motor rotor, an externally-arranged type rotating rectifier (4) is arranged on the end portion of the non-driving end of the motor rotor, a transition disc (9) is arranged on the outer side of the sliding bearing outer cover (7), a rotating rectifier proactive cover (10) is connected to the outer side of the transition disc (9), an annular groove (14) is formed in the transition disc (9), air inlet holes (16) are evenly formed in the circumference of an annular boss (15), and an annular pressure balance air cavity (11) formed between the sliding bearing outer cover (7) and the transition disc (9) is communicated with air through the air inlet holes (16). The externally-arranged type rotating rectifier alternating current motor is simple in structure, and normal work of the alternating current motor is guaranteed.
Description
Technical field
The present invention relates to a kind of external rotary rectifier alternating current machine, particularly a kind ofly prevent that end cover type sliding bearing lubricating oil is to the external rotary rectifier alternating current machine of its external connection apparatus seepage.
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 guaranteeing degree of protection, rotating rectifier generally adopts enclosed construction, and rotating rectifier guard shield is installed on the outer bearing cover of sliding bearing.When 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 existing sliding bearing lubricating oil to the technical problem of 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, end at the anti-drive end of rotor is provided with external rotary rectifier, arranged outside at sliding bearing enclosing cover has transition disk, in the outside of transition disk, be connected with rotating rectifier guard shield, 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, guaranteed the normal work of alternating current machine.
Accompanying drawing explanation
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, end at the anti-drive end of rotor 3 is provided with external rotary rectifier 4, arranged outside at sliding bearing enclosing cover 7 has transition disk 9, in the outside of transition disk 9, be connected with rotating rectifier guard shield 10, 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 integral body 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), end at the anti-drive end of rotor (3) is provided with external rotary rectifier (4), it is characterized in that, arranged outside at sliding bearing enclosing cover (7) has transition disk (9), in the outside of transition disk (9), be connected with rotating rectifier guard shield (10), 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 |
|---|---|---|---|
| CN201310745135.6A CN103762774A (en) | 2013-12-31 | 2013-12-31 | Externally-arranged type rotating rectifier alternating current motor with oil-leakage preventing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310745135.6A CN103762774A (en) | 2013-12-31 | 2013-12-31 | Externally-arranged type rotating rectifier alternating current motor with oil-leakage preventing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103762774A true CN103762774A (en) | 2014-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310745135.6A Pending CN103762774A (en) | 2013-12-31 | 2013-12-31 | Externally-arranged type rotating rectifier alternating current motor with oil-leakage preventing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN103762774A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2664272Y (en) * | 2003-11-20 | 2004-12-15 | 佳木斯电机股份有限公司 | Novel safety and reliable brushless excitation synchronous motor |
| CN200999800Y (en) * | 2006-06-27 | 2008-01-02 | 王澍 | End cap type slide bearing |
| JP2009264404A (en) * | 2008-04-22 | 2009-11-12 | Nsk Ltd | Sealed rolling bearing unit and seal ring |
| CN102355079A (en) * | 2011-09-09 | 2012-02-15 | 兰州电机股份有限公司 | End cover type sliding bearing of high-speed motor |
| CN102705373A (en) * | 2012-05-25 | 2012-10-03 | 湖南崇德工业科技有限公司 | Negative-pressure-resistant oil-gas sealing device of end-cover sliding bearing |
| CN203691121U (en) * | 2013-12-31 | 2014-07-02 | 中船重工电机科技股份有限公司 | External rotating rectifier AC motor with oil-leak-proof device |
-
2013
- 2013-12-31 CN CN201310745135.6A patent/CN103762774A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2664272Y (en) * | 2003-11-20 | 2004-12-15 | 佳木斯电机股份有限公司 | Novel safety and reliable brushless excitation synchronous motor |
| CN200999800Y (en) * | 2006-06-27 | 2008-01-02 | 王澍 | End cap type slide bearing |
| JP2009264404A (en) * | 2008-04-22 | 2009-11-12 | Nsk Ltd | Sealed rolling bearing unit and seal ring |
| CN102355079A (en) * | 2011-09-09 | 2012-02-15 | 兰州电机股份有限公司 | End cover type sliding bearing of high-speed motor |
| CN102705373A (en) * | 2012-05-25 | 2012-10-03 | 湖南崇德工业科技有限公司 | Negative-pressure-resistant oil-gas sealing device of end-cover sliding bearing |
| CN203691121U (en) * | 2013-12-31 | 2014-07-02 | 中船重工电机科技股份有限公司 | External rotating rectifier AC motor with oil-leak-proof device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140430 |