CN201048317Y - Waterproof sealing structure of roller motor - Google Patents
Waterproof sealing structure of roller motor Download PDFInfo
- Publication number
- CN201048317Y CN201048317Y CNU2007200381009U CN200720038100U CN201048317Y CN 201048317 Y CN201048317 Y CN 201048317Y CN U2007200381009 U CNU2007200381009 U CN U2007200381009U CN 200720038100 U CN200720038100 U CN 200720038100U CN 201048317 Y CN201048317 Y CN 201048317Y
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- China
- Prior art keywords
- end cap
- bearing
- electric motor
- end cover
- roller
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- Expired - Fee Related
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Abstract
The utility model relates to the waterproof sealing structure of an electric motor for roller, and mainly solves the technical problems that high-pressure cooling water is liable to enter the cavity of an electric motor, which causes a short circuit to the grounding of the electric motor winding and a burn to the electric motor. The utility model has the technical proposal that the waterproof sealing structure of an electric motor for roller consists of an electric motor, an end cover for the front bearing, a shaft housing, an end cover for the back bearing, a bearing and an end cover. The bearing is arranged at the shaft extension of the rotor of the electric motor, and an end cover is arranged at the end of the bearing and the end cover for the front bearing and the end cover for the back bearing are arranged on the left side and the right side of the bearing respectively. The shaft housing is sleeved between the end cover for the front bearing and the shaft extension of the rotor. The utility model is characterized in that two grooves are respectively arranged on the end cover for the front bearing and at the joint section with the shaft housing. Two layers of linoleum rings are inlaid in the groove and two layers of framework sealing rings are arranged behind the groove. The shaft housing and the shaft extension of the rotor are fixed through a straight pin and a retainer ring for shaft. A water outlet hole is arranged below the end of the stator winding at the bottom of the electric motor frame and a unidirectional water-leaking plug (for water-out only) is arranged in the water outlet hole. The utility model is mainly used for preventing water from entering the electric motor for roller.
Description
Technical field:
The utility model relates to a kind of hermetically-sealed construction of motor, particularly a kind of waterproof sealing structure of electric machines for roller.
Background technology:
The present electric machines for roller of metallurgy industry, country does not have unified design standard, and existing product all is by each motor manufactory, designs voluntarily according to user's instructions for use and state of arts.Generally speaking, the hermetically-sealed construction of motor designs according to standard, and the degree of protection of electric machines for roller can reach IP55, and electric machines for roller can protect water spray in theory, can satisfy general production needs.But, in actual applications, because roller-way has used elevated pressures (3kg/cm in the production process
2) the injection cooling water, after the direction of current is passed through stopping of equipment, injection direction is indefinite, sometimes, can be directly injected to the front end housing and the shaft position of electric machines for roller, when electric machines for roller under rotary state, conventional hermetically-sealed construction can't effectively stop cooling water to enter motor cavity from positions such as Motor Shaft, end caps.After the motor water inlet, cause insulation to descend, the motor stator winding end bottom is under water, finally causes the motor windings ground short circuit, makes burn-down of electric motor.
Chinese patent CN200520034616.7 provides a kind of waterproof sealing structure of motor, and this structure " is provided with at least one and is the radially annular groove that catchments of indent form, and be provided with the position of catchmenting that the annular groove that catchments adapts and the extraneous drainage channel that communicates.This structure can be under the prerequisite that satisfies normal operation of running gear such as motor and not loss rotation axis transferring power, and for the rotation axis of equipment such as motor provides a kind of contactless sealing means, it is simple in structure and can have satisfied water resistance." but the invention main points of this utility model are drainings, and stop water to enter the method that motor does not provide how.
The utility model content:
The purpose of this utility model provides a kind of waterproof sealing structure of electric machines for roller, mainly solves high-pressure cooling water and enters motor cavity easily and cause the motor windings ground short circuit, makes the technical problem of burn-down of electric motor.
The technical solution of the utility model is: a kind of waterproof sealing structure of electric machines for roller, comprise electric machines for roller, the fore bearing end cap, axle sleeve, the rear bearing end cap, bearing, end cap, Bearing Installation is in the rotor shaft extension part of motor, its end installs end cap additional, install fore bearing end cap and rear bearing end cap additional in its left and right sides, be socketed with axle sleeve between fore bearing end cap and the rotor shaft extension part, it is characterized in that: the part of joining with axle sleeve on the fore bearing end cap is provided with the two pass groove, inlay double-deck malthoid circle in the groove, double-deck backbone sealing ring is set thereafter, and axle sleeve and rotor shaft extension part are fixed by straight pin and shaft block ring.
In electric machine stand bottom, have apopore, the unidirectional plug that leaks of built-in only export but no import below the stator coil end; Coil of stator of motor winding surface is coated with VPI vacuum pressure impregnation layer, in the end coated of stator coil winding the epoxy sealing glue-line is arranged.
The beneficial effects of the utility model are: even double-deck malthoid circle Seal Design also can effectively stop the hydraulic pressure that reduction is impacted to being directly injected to the cooling water of motor shaft extension direction.Install after double-deck dash malthoid that double-deck import is heat-resisting, water-fast, the backbone sealing ring of oil resistant, be used for preventing the cooling water that infiltrates from the ground floor waterproof construction; The tolerance of motor shaft sleeve internal diameter adopts interference fit, its machining accuracy brings up to 3.2, and the external diameter machining accuracy is 3.2 also, and the conformability of axle sleeve and bearing, axle sleeve and dash malthoid, axle sleeve and double-layer seal backbone sealing ring is effectively improved, prolong the useful life of sealing ring, improves waterproof effect.Electric machine stand partly sets out the water hole, is used for the motor cavity draining, even motor cavity enters a spot of water, also can discharge, and winding also is difficult for burning, and iron core also is difficult for having been prolonged the useful life of electric machines for roller greatly by corrosion.Coil of stator of motor winding integral body is carried out VPI vacuum pressure impregnation technology, and coil is cured as one after treatment, guarantees the electrical machine insulation performance; But after a VPI vacuum pressure impregnation technology, stator coil is cooled off by hot oven dry, still might adopt epoxy sealing glue by the end to stator winding because of local contraction causes the space, eliminates these hidden danger, can effectively improve the insulation effect of coil.
Description of drawings:
Accompanying drawing is the utility model structural representation
Among the figure: 1-malthoid circle, 2-backbone sealing ring, 3-fore bearing end cap, 4-end cap, 5-bearing, 6-straight pin, 7-shaft block ring, 8-axle sleeve, 9-rear bearing end cap, 10-rotor shaft extension part.
Embodiment:
With reference to accompanying drawing, a kind of waterproof sealing structure of electric machines for roller, comprise electric machines for roller, fore bearing end cap 3, axle sleeve 8, rear bearing end cap 9, bearing 5, end cap 4, bearing 5 is installed in the rotor shaft extension part 10 of motor, its end installs end cap 4 additional, install fore bearing end cap 3 and rear bearing end cap 9 additional in its left and right sides, be socketed with axle sleeve 8 between fore bearing end cap 3 and the rotor shaft extension part 10, it is characterized in that: the part of joining with axle sleeve 8 on fore bearing end cap 3 is provided with the two pass groove, inlay double-deck malthoid circle 1 in the groove, even this structure is to being directly injected to the cooling water of motor shaft extension direction, also can effectively stop, reduce the hydraulic pressure that impacts, the water yield of immersion is significantly reduced; After double-deck dash malthoid, designed seal groove on the fore bearing end cap, be used to install that double-deck import is heat-resisting, water-fast, the backbone sealing ring of oil resistant 2, be used for preventing the cooling water that infiltrates from the ground floor waterproof construction; Axle sleeve and rotor shaft extension are partly fixing by straight pin 6 and shaft block ring 7.The tolerance of improving the rear motor sleeve diameter adopts interference fit, its machining accuracy brings up to 3.2, the external diameter machining accuracy also is 3.2, the conformability of axle sleeve and bearing, axle sleeve and dash malthoid, axle sleeve and double-layer seal backbone sealing ring is effectively improved, prolong the useful life of sealing ring, improves waterproof effect.The apopore that adds drill diameter 16cm below support bottom, stator coil end, and the unidirectional plug that leaks of configuration only export but no import are used for the motor cavity draining.Coil of stator of motor winding integral body is carried out VPI vacuum pressure impregnation technology, and coil is cured as one after treatment, guarantees the electrical machine insulation performance; But after a VPI vacuum pressure impregnation technology, stator coil is cooled off by hot oven dry, still might adopt epoxy sealing glue by the end to stator winding because of local contraction causes the space, eliminates these hidden danger, can effectively improve the insulation effect of coil.
Claims (3)
1. the waterproof sealing structure of electric machines for roller, comprise electric machines for roller, the fore bearing end cap, axle sleeve, the rear bearing end cap, bearing, end cap, Bearing Installation is in the rotor shaft extension part of motor, its end installs end cap additional, install fore bearing end cap and rear bearing end cap additional in its left and right sides, be socketed with axle sleeve between fore bearing end cap and the rotor shaft extension part, it is characterized in that: the part of joining with axle sleeve on the fore bearing end cap is provided with the two pass groove, inlay double-deck malthoid circle in the groove, double-deck backbone sealing ring is set thereafter, and axle sleeve and rotor shaft extension part are fixed by straight pin and shaft block ring.
2. the waterproof sealing structure of a kind of electric machines for roller according to claim 1 is characterized in that: in the electric machine stand bottom, have apopore, the unidirectional plug that leaks of built-in only export but no import below the stator coil end.
3. the waterproof sealing structure of a kind of electric machines for roller according to claim 1 and 2, it is characterized in that: coil of stator of motor winding surface is coated with VPI vacuum pressure impregnation layer, in the end coated of stator coil winding the epoxy sealing glue-line is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200381009U CN201048317Y (en) | 2007-05-31 | 2007-05-31 | Waterproof sealing structure of roller motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200381009U CN201048317Y (en) | 2007-05-31 | 2007-05-31 | Waterproof sealing structure of roller motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201048317Y true CN201048317Y (en) | 2008-04-16 |
Family
ID=39300909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200381009U Expired - Fee Related CN201048317Y (en) | 2007-05-31 | 2007-05-31 | Waterproof sealing structure of roller motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201048317Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101447709B (en) * | 2008-12-26 | 2011-05-04 | 锦州汉拿电机有限公司 | Mud and water resistance structure of vehicle dynamo bearing |
| CN102340223A (en) * | 2010-07-20 | 2012-02-01 | 永济新时速电机电器有限责任公司 | Asynchronous motor for rail grinding train |
| CN102361362A (en) * | 2011-09-06 | 2012-02-22 | 湘潭电机股份有限公司 | Bearing outer cover sealing device |
| CN105610266A (en) * | 2016-03-23 | 2016-05-25 | 苏州朗高电机有限公司 | Splash-proof device for motor |
| CN107575578A (en) * | 2017-10-17 | 2018-01-12 | 江苏港星方能超声洗净科技有限公司 | Vacuum rotatory sealing structure |
| CN109327099A (en) * | 2018-12-21 | 2019-02-12 | 卧龙电气南阳防爆集团股份有限公司 | A kind of amphibian animal permanent magnetism submersible electric motor of degree of protection IP68 |
-
2007
- 2007-05-31 CN CNU2007200381009U patent/CN201048317Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101447709B (en) * | 2008-12-26 | 2011-05-04 | 锦州汉拿电机有限公司 | Mud and water resistance structure of vehicle dynamo bearing |
| CN102340223A (en) * | 2010-07-20 | 2012-02-01 | 永济新时速电机电器有限责任公司 | Asynchronous motor for rail grinding train |
| CN102340223B (en) * | 2010-07-20 | 2013-05-22 | 永济新时速电机电器有限责任公司 | Asynchronous motor for rail grinding train |
| CN102361362A (en) * | 2011-09-06 | 2012-02-22 | 湘潭电机股份有限公司 | Bearing outer cover sealing device |
| CN105610266A (en) * | 2016-03-23 | 2016-05-25 | 苏州朗高电机有限公司 | Splash-proof device for motor |
| CN105610266B (en) * | 2016-03-23 | 2018-03-30 | 苏州朗高电机有限公司 | A kind of motor splash proof device |
| CN107575578A (en) * | 2017-10-17 | 2018-01-12 | 江苏港星方能超声洗净科技有限公司 | Vacuum rotatory sealing structure |
| CN109327099A (en) * | 2018-12-21 | 2019-02-12 | 卧龙电气南阳防爆集团股份有限公司 | A kind of amphibian animal permanent magnetism submersible electric motor of degree of protection IP68 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080416 Termination date: 20160531 |