CN103475135B - The anti-oil strain end cap of a kind of super high power motor - Google Patents
The anti-oil strain end cap of a kind of super high power motor Download PDFInfo
- Publication number
- CN103475135B CN103475135B CN201310438821.9A CN201310438821A CN103475135B CN 103475135 B CN103475135 B CN 103475135B CN 201310438821 A CN201310438821 A CN 201310438821A CN 103475135 B CN103475135 B CN 103475135B
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- Prior art keywords
- end cover
- cage
- end cap
- oil strain
- sliding bearing
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- 238000001816 cooling Methods 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 6
- 230000007423 decrease Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 16
- 238000009434 installation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Sliding-Contact Bearings (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The upper end cover the invention discloses the anti-oil strain end cap of a kind of super high power motor, contain bottom end cover, being connected by joint close plate, be fixed on cage that upper end cover up and down end cap engages, be located at blind window outside cage.Described bottom end cover, for installing A seating sliding bearing support platform, combines sliding bearing and motor internal negative pressuren zone simultaneously and isolates and prevent oil strain with cage.Large-power High-Speed motor uses the present invention, efficiently solves the oil strain problem that common sliding bearing causes because of negative pressure, decrease the operation of user, maintenance cost.Meanwhile, split type end cap is that overall dynamic-balance offers convenience, the present invention have easy to operate, cost is low, the advantage such as reliable.
Description
Technical field
The invention belongs to technical field of motors, relate to a kind of end cap, relate in particular to power at more than 10000kW super high power high-speed asynchronous motor end cap.
Background technology
At present, the sliding bearing of high power motor has two kinds, A seating sliding bearing and end cover type A seating sliding bearing, A seating sliding bearing is installed with on motor base, thus add the axial dimension of motor, disadvantageous to the amount of deflection of motor, therefore less employing in high-speed electric expreess locomotive, end cover type A seating sliding bearing is installed in the support platform of end cap, as shown in Figure 1, it takes up room less, can shorten the axial dimension of motor, be all favourable to the amount of deflection of motor and critical whirling speed, thus extensively met the tendency on Large-power High-Speed motor.And the internal fan of Large-power High-Speed motor is generally rotary propeller type aerofoil fan, very large negative pressuren zone can be formed between fan and internal bearing cover, the oil gas in bearing is made to pass through sealing gland lid on internal bearing cover, suck motor internal, destroy electrical machine insulation and cause electrical fault, cause very large maintenance cost to client, and greatly waste lubricating oil.
Large-power High-Speed motor rotor weight is large, rotating speed is high, usually the restriction being subject to balancing equipment cannot do balance at full speed, the gimbal of reserved overall dynamic-balance seems and is necessary in the extreme, when overall dynamic-balance, facilitate, reliably add, subtract and adjustment block, just need to carry out particular design to electric motor end cap.
Summary of the invention
The object of the invention is to the shortcoming overcoming above-mentioned prior art, there is provided a kind of super high power motor anti-oil strain end cap, the formation of negative pressuren zone between Large-power High-Speed asynchronous motor fan and internal bearing cover can be prevented, effectively solve Large-power High-Speed asynchronous motor sliding bearing oil strain problem.
For achieving the above object, the present invention solves by the following technical programs:
The anti-oil strain end cap of this super high power motor, the bottom end cover comprise upper end cover, being connected by joint close plate, to be fixed on bottom end cover with the cage on upper end cover, to be located at blind window outside cage.
Above-mentioned bottom end cover, for installing the support platform of A seating sliding bearing, is provided with six brace rods of the integral rigidity improving end cap in support platform bottom.
A seating sliding bearing the latter half and negative pressuren zone are isolated by above-mentioned bottom end cover.
Above-mentioned cage is to ensure that cooling air enters the streamlined of motor internal glibly.
Further, air enters described blind window balance cage internal pressure.
Above cage and the hot jacket gimbal radial clearance on machine shaft is 5mm.
Further, the gimbal of hot jacket in rotating shaft is processed with the annular groove for overall dynamic-balance; Annular groove is equiped with balance weight.
The present invention has following beneficial effect:
The anti-oil strain end cap of super high power motor of the present invention, the upper end cover connected by joint close plate, bottom end cover; Bottom end cover is for installing A seating sliding bearing support platform, the cage being installed on upper end cover combine with bottom end cover part by sliding bearing and negative pressuren zone every, simultaneously, air enters the blind window be contained in outside cage continuously, thus balance cage internal pressure, the annulus that the cage of end cap increases coordinates with gimbal, both ensure that the degree of protection requirement of motor, in turn ensure that the requirement of motor overall dynamic-balance.The reliable ripe anti-oil strain measure of the present invention, efficiently solves the oil strain problem that common sliding bearing causes because of negative pressure, decreases the operation of user, maintenance cost.Meanwhile, split type end cap is that overall dynamic-balance offers convenience, this present invention have easy to operate, cost is low, the advantage such as reliable.
Accompanying drawing explanation
Fig. 1 is the employing end cap installation diagram of prior art;
Fig. 2 is the structure chart of the anti-oil strain end cap of a kind of super high power of the present invention motor;
Fig. 3 is the schematic diagram of a kind of super high power of the present invention motor anti-oil strain end cap embodiment.
Fig. 4 is a kind of motor anti-oil strain end cap of the present invention three-dimensional model diagram.
Wherein: 1 is upper end cover; 2 is joint close plate; 3 is bottom end cover; 4 is cage; 5 is blind window; 6 is sliding bearing; 7 is rotating shaft; 8 is rotary propeller type fan; 9 is gimbal; 10 is support; 11 is support platform; 12 is brace rod.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail:
See Fig. 3, the anti-oil strain end cap of a kind of super high power motor of the present invention, is comprised upper end cover 1, the bottom end cover 3 connected by joint close plate 2, the cage 4 be fixed on upper end cover 1 up and down end cap 3, is located at blind window 5 outside cage 4.One end of cage 4 is connected with bottom end cover 3 and upper end cover 1, and the other end coordinates with the gimbal 9 on machine shaft 7.Air enters described blind window 5 and balances cage 4 internal pressure.Described bottom end cover 3, for installing the support platform 11 of A seating sliding bearing, is provided with six brace rods 12 of the integral rigidity improving end cap in support platform 11 bottom.A seating sliding bearing the latter half and negative pressuren zone are isolated by described bottom end cover 3.Namely the cage of upper end cover combine with bottom end cover part by sliding bearing and negative pressuren zone every.Described cage 4, for cooling air can be made to enter the streamlined of motor internal, ensure that cooling air enters motor internal glibly.Cage 4 and gimbal 9 radial clearance of hot jacket on machine shaft 7 are 5mm.The gimbal 9 of hot jacket in rotating shaft 7 is processed with the annular groove for overall dynamic-balance; Annular groove is equiped with balance weight.Pull down the cage 4 be fixed on upper end cover 3, balance weight can be filled at gimbal 9 easily, and according to balance requirement, change balance weight position.
Penetrate after support 10 until rotor, upper end cover 1 and bottom end cover 3 bolt are put together on support 10, the lower tile mounting base of sliding bearing 6 is arranged in the support platform 11 of bottom end cover 3, because gimbal on rotor 9 and cage 4 mating surface gap only have 5mm, and stator and rotor air gap is greater than 5mm, during assembling bottom end cover 1 be with jack by first for rotor jack-up, prevent from damaging cage 4 by pressure, after bearing pedestal and lower watt assemble, remove jack again.Load onto sliding bearing 6 upper watt and FE Tiler, undetermined, rotor airgap is adjusted evenly, is finally put together on upper end cover 3 by cage 4 bolt.If need overall dynamic-balance, or maintenance motor, can dismounting cage 4 easily.
In sum, the anti-oil strain end cap of a kind of super high power motor of the present invention, for the ease of installation, the examination and maintenance of end cover type A seating sliding bearing, isolates end cover type A seating sliding bearing and motor internal negative pressuren zone and prevents oil strain.It is easy for installation, easy to operate, after installation, can prevent between Large-power High-Speed asynchronous motor fan and internal bearing cover, forming the impact of negative pressure on motor sliding bearing, efficiently solve the oil strain problem that common sliding bearing causes because of negative pressure, meanwhile, for the overall dynamic-balance of motor offers convenience.Large-power High-Speed motor uses the present invention, efficiently solves the oil strain problem that common sliding bearing causes because of negative pressure, decrease the operation of user, maintenance cost.Meanwhile, split type end cap is that overall dynamic-balance offers convenience, the present invention have easy to operate, cost is low, the advantage such as reliable.
Claims (4)
1. the anti-oil strain end cap of super high power motor, the bottom end cover (3) it is characterized in that, comprise upper end cover (1), being connected by joint close plate (2), be fixed on bottom end cover (3) upper with the cage (4) on upper end cover (1), be located at blind window (5) outside cage (4); Described bottom end cover (3), for installing the support platform (11) of A seating sliding bearing, is provided with six brace rods (12) of the integral rigidity improving end cap in support platform (11) bottom; A seating sliding bearing the latter half and negative pressuren zone are isolated by described bottom end cover (3); Described cage (4) is for can ensure that cooling air enters the streamlined of motor internal glibly.
2. the anti-oil strain end cap of super high power motor according to claim 1, is characterized in that, air enters described blind window (5) balance cage (4) internal pressure.
3. the anti-oil strain end cap of super high power motor according to claim 2, is characterized in that, cage (4) and gimbal (9) radial clearance of hot jacket on machine shaft (7) are 5mm.
4. the anti-oil strain end cap of super high power motor according to claim 3, is characterized in that, the gimbal (9) of hot jacket on machine shaft (7) is processed with the annular groove for overall dynamic-balance; Annular groove is equiped with balance weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310438821.9A CN103475135B (en) | 2013-09-24 | 2013-09-24 | The anti-oil strain end cap of a kind of super high power motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310438821.9A CN103475135B (en) | 2013-09-24 | 2013-09-24 | The anti-oil strain end cap of a kind of super high power motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103475135A CN103475135A (en) | 2013-12-25 |
| CN103475135B true CN103475135B (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310438821.9A Active CN103475135B (en) | 2013-09-24 | 2013-09-24 | The anti-oil strain end cap of a kind of super high power motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN103475135B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106533032A (en) * | 2016-12-21 | 2017-03-22 | 上海电气集团上海电机厂有限公司 | Bearing assembly of super-high-speed asynchronous motor |
| CN106532997A (en) * | 2016-12-21 | 2017-03-22 | 上海电气集团上海电机厂有限公司 | Super-high-speed asynchronous motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2837597Y (en) * | 2005-05-10 | 2006-11-15 | 上海电气集团上海电机厂有限公司 | End bracket and seat type sliding bearing and end bracket thereof |
| CN201146423Y (en) * | 2008-01-30 | 2008-11-05 | 黄治德 | Balancing loop for motor |
| CN102386735A (en) * | 2011-11-22 | 2012-03-21 | 永济新时速电机电器有限责任公司 | Compact-type high-power top drive variable frequency speed control asynchronous motor |
| CN202334077U (en) * | 2011-11-23 | 2012-07-11 | 中船重工电机科技股份有限公司 | Conveniently assembled and disassembled sliding ring outer cap for power generator |
| CN202957697U (en) * | 2012-10-25 | 2013-05-29 | 重庆赛力盟电机有限责任公司 | Oil leakage proof structure for high speed motor lubricated by thin oil |
-
2013
- 2013-09-24 CN CN201310438821.9A patent/CN103475135B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2837597Y (en) * | 2005-05-10 | 2006-11-15 | 上海电气集团上海电机厂有限公司 | End bracket and seat type sliding bearing and end bracket thereof |
| CN201146423Y (en) * | 2008-01-30 | 2008-11-05 | 黄治德 | Balancing loop for motor |
| CN102386735A (en) * | 2011-11-22 | 2012-03-21 | 永济新时速电机电器有限责任公司 | Compact-type high-power top drive variable frequency speed control asynchronous motor |
| CN202334077U (en) * | 2011-11-23 | 2012-07-11 | 中船重工电机科技股份有限公司 | Conveniently assembled and disassembled sliding ring outer cap for power generator |
| CN202957697U (en) * | 2012-10-25 | 2013-05-29 | 重庆赛力盟电机有限责任公司 | Oil leakage proof structure for high speed motor lubricated by thin oil |
Non-Patent Citations (1)
| Title |
|---|
| YKS800-210KV4000KW大型高压电动机的研究与设计;李培德 等;《上海大中型电机》;20130331(第1期);第38-40页，图2、图3 * |
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| Publication number | Publication date |
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| CN103475135A (en) | 2013-12-25 |
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Inventor after: Liu Yuntao Inventor after: Liu Weibing Inventor after: Bit elegant Inventor after: Sun Wei Inventor after: Zhang Bangning Inventor before: Liu Weibing Inventor before: Bit elegant Inventor before: Sun Wei Inventor before: Liu Yuntao |
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Effective date of registration: 20230331 Address after: No. 21, Building 11, Zone A, Phase I, Business Plaza, south of Huanghe Road and east of Huashan Street, Longsha District, Qiqihar City, Heilongjiang Province, 161005 Patentee after: Qiqihar Nankuichang Enterprise Management Consulting Co.,Ltd. Address before: 710032 No. 159 Mingguang Road, Xi'an economic and Technological Development Zone, Shaanxi Patentee before: XI'AN TECH FULL SIMO MOTOR Co.,Ltd. |