CN201650767U - Water-cooled centrifugal water pump - Google Patents
Water-cooled centrifugal water pump Download PDFInfo
- Publication number
- CN201650767U CN201650767U CN2010201522523U CN201020152252U CN201650767U CN 201650767 U CN201650767 U CN 201650767U CN 2010201522523 U CN2010201522523 U CN 2010201522523U CN 201020152252 U CN201020152252 U CN 201020152252U CN 201650767 U CN201650767 U CN 201650767U
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- water
- rotor
- main shaft
- sliding bearing
- circle
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- Expired - Lifetime
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Abstract
The utility model discloses a water-cooled centrifugal water pump, relating to a water pump structure. The water-cooled centrifugal water pump is characterized in that a transverse cup body is sleeved on an inner circle of a stator, a rubber sealing ring is sleeved on an annular disk at the left end port of the cup body and the annular disk is fixed on a housing by the front cover of a motor. A sliding bearing is respectively sleeved on the bottom of the cup body and the front cover of the motor. A thin tubular body is fixed on an external circle of a rotor, a front sealing cover and a rear sealing cover are sealed and fixed together after being embedded in a main shaft and certain gap is existed between an external circle of the thin tubular body of the rotor and an inner circle of the cup body. A front part and a rear part of the main shaft are sleeved on a front sleeve-type sliding bearing and a rear sleeve-type sliding bearing by means of movable cooperation, the main shaft is provided with a central blind hole, radial side holes are arranged at the bottom of the blind hole and two radial grooves are arranged at a corresponding position of a left end surface of the rear sleeve-type sliding bearing. The utility model has the advantages of sealed rotor, replacement of a rolling bearing with a sliding bearing, arrangement of a central blind hole which enables water to flow in a cup-body impeller and cool the stator and the rotor by water, thereby preventing water from entering the stator and the rotor because of water leakage caused by long-term use of a sealing ring of the front cover.
Description
Technical field:
The utility model relates to water pump structure.
Background technique:
Centrifugal water pump is made up of the impeller in electric machine stand, casing, bonnet, protecgulum, terminal box, stator, rotor, main shaft, bearing, the pump housing, the pump housing; Forward and backward covering is provided with rolling bearing, and seal ring is linked in the main shaft two ends, with the grease lubrication bearing; The pump housing is provided with water intake, water outlet, impeller is in the form of annular discs, several blades of radial equipartition, the impeller central hole is facing to the feed water flow road junction, water is thrown to the pump inner chamber by impeller blade centrifugal force after being entered by the runner mouth, flows out from water outlet again, after protecgulum central hole with seal ring was passed in the main shaft left part, fixed cover was combined in the axle sleeve of impeller right part; After pump housing right output port puts seal ring, be inserted in motor protecgulum step outer toroid flange again after pressing and fixing on the casing left port, motor housing is provided with radially taeniae shape radiating fin of outside dispersion shape, the heat that electric machine operation state is produced down distributes to air.
This structure dependence radiating fin air cooling mode rate of cooling is slow, cooling effect is poor, and the setting of radiating fin, has increased motor boundary dimension, and it is big to take up room, and protecgulum seal leakage meeting simultaneously makes water enter stator and rotor.
Summary of the invention:
The purpose of this utility model is to overcome above-mentioned defective, and a kind of water-cooled centrifugal water pump is provided.
Scheme of the present utility model is: be with horizontal lamellar water cup movingly on the circle in the stator, the water cup left port is extension annulus plate-like, the circle ring disk left side is sheathed with the rubber seal ring of correspondingly-shaped, and rubber seal ring is oppressed by being close in motor protecgulum right side, water cup extension circle ring disk is fixed on delineation position, outer, a circle ring disk right side fit on the casing left port; The cup bottom fixedly is sheathed with the hollow rear bearing block in the water tumbler body cavity, and rear bearing block central hole internal fixation is sheathed with the rear axle housing type sliding bearing, and motor Front Cover Bearing seat is put and fixedly is sheathed with front axle shell type sliding bearing; The rotor cylindrical is fixed with thin tubular body, is to implement to be sealedly and fixedly connected with thin tubular body both ends of the surface after the forward and backward sealing cover of annulus plate-like is inserted in main shaft, and circle is slightly gapped in external circle of rotor light wall pipe shape and the water cup; Main shaft front and rear portions fixing on the rotor central hole is enclosed within former and later two axle sleeve type sliding bearings movingly, main shaft is provided with central blind hole, the blind hole opening is at the main shaft left end, form water flow passage with the impeller central hole, the blind hole bottom offers radially lateral opening, radially lateral opening aperture is arranged on the sealing cover outside behind the rotor, and rear axle housing type sliding bearing left side is provided with two radial grooves corresponding to main shaft diameter to lateral opening position.
Advantage of the present utility model is: rotor seal, rolling bearing change the setting of the main shaft central blind hole of sliding bearing, pottery or stainless steel car system into, make flowing water enter the water cup impeller outer and also stator and rotor are implemented water cooling, cooling effect is better than air cooling, overall volume has also been dwindled in the cancellation of radiating fin, the phenomenon that the leakage water of it's service time having avoided to past generation of a specified duration simultaneously the protecgulum seal ring enters stator and rotor.
Description of drawings:
Accompanying drawing is the utility model structural representation.
Embodiment:
Structure of the present utility model is made up of the impeller (2) in electric machine stand, casing (8), bonnet, protecgulum (3), terminal box, stator (6), rotor (7), main shaft (4), bearing, the pump housing (1), the pump housing (1); It is characterized in that: be with horizontal lamellar water cup (5) movingly on the circle in the stator (6), water cup (5) left port is extension annulus plate-like, the circle ring disk left side is sheathed with the rubber seal ring (9) of correspondingly-shaped, and rubber seal ring (9) is oppressed by being close in motor protecgulum (3) right side, water cup (5) extension circle ring disk is fixed on delineation position, outer, a circle ring disk right side fit on casing (8) left port; The cup bottom fixedly is sheathed with the hollow rear bearing block in water cup (5) chamber, and rear bearing block central hole internal fixation is sheathed with the rear axle housing type sliding bearing, and motor protecgulum (3) bearing support position fixed cover has closed front axle shell type sliding bearing; Rotor (7) cylindrical is fixed with thin tubular body, is to implement to be sealedly and fixedly connected with thin tubular body both ends of the surface after the forward and backward sealing cover of annulus plate-like is inserted in main shaft (4), and circle is slightly gapped in external circle of rotor (7) light wall pipe shape and the water cup (5); Main shaft (4) front and rear portions fixing on rotor (7) central hole is enclosed within former and later two axle sleeve type sliding bearings movingly, main shaft (4) is provided with central blind hole, the blind hole opening is at main shaft (4) left end, form water flow passage with impeller (2) central hole, the blind hole bottom offers radially lateral opening, radially lateral opening aperture is arranged on the sealing cover outside, rotor (7) back, and rear axle housing type sliding bearing left side is provided with two radial grooves corresponding to main shaft (4) longitudinal edge hole site.
Main shaft (4) can adopt stainless steel or stupalith, and bearing housing can adopt copper sheathing or graphite material.
Preferred version is: main shaft (4) adopts stupalith, and bearing housing adopts graphite material.The rotation of the combination of this kind material is paid wear resistance and is paid wear-resisting than the rotation of stainless steel, copper sheathing combination.
Under the working state, water is entered by impeller (2) central hole, main shaft (4) central blind hole of impeller (2) water flow passage, pottery or the stainless steel car system of flowing through successively, radially lateral opening, back graphite sliding bearing cover or copper sheathing, enter behind the radial groove rotor (7) with water cup (5) back cavity, pass through rotor (7) and water cup (5) internal surface gaps again and enter cavity before the cooling that water cup (5), motor protecgulum (3), rotor (7) left side form.Formation is to rotor (7), water cup (5) water cooling, and stator (6) relies on the cold conduction of water cup (5) to implement cooling.This water cooling is not by circulating water, but realizes with water temperature conduction pattern inside and outside the chamber.
In this technological scheme, main shaft (4) changes sliding friction with bearing into by rolling friction, the seal ring of cancellation bearing avris, and origin water gap between main shaft (4) and axle sleeve forms moisture film, carries out lubricated and cooling to rotating to pay.Pay even this gap leaks also not influence to rotate, because do not need tight seal here, the cooling behavior was exactly water originally, and water can not enter the rotor (7) of sealing and the stator (6) of isolating.
Claims (1)
1. a water-cooled centrifugal water pump is made up of the impeller (2) in electric machine stand, casing (8), bonnet, protecgulum (3), terminal box, stator (6), rotor (7), main shaft (4), bearing, the pump housing (1), the pump housing (1); It is characterized in that: be with horizontal lamellar water cup (5) movingly on the circle in the stator (6), water cup (5) left port is extension annulus plate-like, the circle ring disk left side is sheathed with the rubber seal ring (9) of correspondingly-shaped, and rubber seal ring (9) is oppressed by being close in motor protecgulum (3) right side, water cup (5) extension circle ring disk is fixed on delineation position, outer, a circle ring disk right side fit on casing (8) left port; The cup bottom fixedly is sheathed with the hollow rear bearing block in water cup (5) chamber, and rear bearing block central hole internal fixation is sheathed with the rear axle housing type sliding bearing, and motor protecgulum (3) bearing support position fixed cover has closed front axle shell type sliding bearing; Rotor (7) cylindrical is fixed with thin tubular body, is to implement to be sealedly and fixedly connected with thin tubular body both ends of the surface after the forward and backward sealing cover of annulus plate-like is inserted in main shaft (4), and circle is slightly gapped in external circle of rotor (7) light wall pipe shape and the water cup (5); Main shaft (4) front and rear portions fixing on rotor (7) central hole is enclosed within former and later two axle sleeve type sliding bearings movingly, main shaft (4) is provided with central blind hole, the blind hole opening is at main shaft (4) left end, form water flow passage with impeller (2) central hole, the blind hole bottom offers radially lateral opening, radially lateral opening aperture is arranged on the sealing cover outside, rotor (7) back, and rear axle housing type sliding bearing left side is provided with two radial grooves corresponding to main shaft (4) longitudinal edge hole site.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201522523U CN201650767U (en) | 2010-04-07 | 2010-04-07 | Water-cooled centrifugal water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201522523U CN201650767U (en) | 2010-04-07 | 2010-04-07 | Water-cooled centrifugal water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201650767U true CN201650767U (en) | 2010-11-24 |
Family
ID=43116001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201522523U Expired - Lifetime CN201650767U (en) | 2010-04-07 | 2010-04-07 | Water-cooled centrifugal water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201650767U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832275A (en) * | 2010-04-07 | 2010-09-15 | 福建天工电机有限公司 | Water-cooling centrifugal water pump |
| CN102182711A (en) * | 2011-06-08 | 2011-09-14 | 江门市地尔汉宇电器股份有限公司 | Alternating-current permanent magnet synchronous drainage pump with built-in closed cooling water tank |
-
2010
- 2010-04-07 CN CN2010201522523U patent/CN201650767U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832275A (en) * | 2010-04-07 | 2010-09-15 | 福建天工电机有限公司 | Water-cooling centrifugal water pump |
| CN102182711A (en) * | 2011-06-08 | 2011-09-14 | 江门市地尔汉宇电器股份有限公司 | Alternating-current permanent magnet synchronous drainage pump with built-in closed cooling water tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101124 Effective date of abandoning: 20120321 |