CN201241838Y

CN201241838Y - Suspending type centrifugal pump

Info

Publication number: CN201241838Y
Application number: CNU2008200270157U
Authority: CN
Inventors: 王瑞琪
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-08-22
Filing date: 2008-08-22
Publication date: 2009-05-20
Anticipated expiration: 2018-08-22

Abstract

A suspension eccentric pump is composed of an outer magnetic rotor 2, an inner magnetic rotor 6, a water outlet 10, a water inlet 13, an impeller 14, a drive motor 18 and a pump case 19, which is characterized in that the output end cover of the drive motor 18 is connected with the pump case 19 via an isolation support plate 5, the middle of the isolation support plate 5 is fixedly connected with a supporting shaft 4 which outer end is movably connected with a rotary sleeve 11 via a supporting shaft sleeve 12, the end of the supporting shaft sleeve 12 near the support plate 5 is fixedly connected with a lower fixing ring 16 which upper end is connected with an upper fixing ring 17 via a sliding gasket 9, the lower fixing ring 16 is fixedly connected with the support plate 5 and the upper fixing ring 17 is fixedly connected with the impeller 14. Therefore, the suspension eccentric pump has simple structure, low production cost, simple maintenance, wide application range, abrasion resistance, high temperature resistance, corrosion resistance, eliminated leakage and long service life.

Description

Floated centrifugal pump

Technical field:

The utility model relates to a kind of centrifugal pump, the floated centrifugal pump of particularly a kind of wear-resistant magneto drive.

Background technique:

At present, China's industry and civilian pump ubiquity damage more frequent overhaul and the maintenance problem that causes because of motive sealing, the working life of pump is mostly very short, especially those running environmental conditions differences is all the more so as submersible pump, sewage pump, slurry pump, slag stock pump and high-head pump and chemicalpump etc., not only cause loss economically but also influenced normal production greatly, because run, drip, leak have also influenced environment, brought the inflammable and explosive hidden danger that waits secure context simultaneously.

Summary of the invention:

The purpose of this utility model will provide a kind of simple in structure, applied widely, long service life, leak free floated centrifugal pump exactly.

The purpose of this utility model is achieved in that a kind of floated centrifugal pump, by outer magnet rotor (2), interior magnet rotor (6), drain opening (10), water intake (13), impeller (14), drive motor (18), pump case (19) is formed, the output end cap that it is characterized in that described drive motor (18) is connected with pump case (19) by isolation bearings plate (5), at the fixedly connected supporting axle in isolation bearings plate (5) intermediate portion (4), supporting axle (4) outer end flexibly connects rotating sleeve (11) by fixedly connected supporting sleeve (12), supporting sleeve (12) is near the fixedly connected retaining ring (16) down of support plate (5) end, and following retaining ring (16) upper end is by retaining ring (17) in sliding gasket (9) connection; Following retaining ring (16) is fixedlyed connected with support plate (5), and last retaining ring (17) is fixedlyed connected with described impeller (14).Preferred embodiment of the utility model is: fixedly connected by bolt (7) between impeller (14) and the interior magnet rotor (6), fixedly connected wearing layer (8) on the inwall of pump case (19), impeller (14) external stability connects wearing layer (8), wearing layer (8) adopts pottery, rubber, a kind of making in plastics and the anticorrosion antiwear alloy material, impeller (14) is coniform or class is hemispherical and there is a water sucking mouth at the center for front-end face is cambered outwards class, thereafter it is coniform or class is hemispherical that end face is the class of corresponding forward end (feed-water end) depression, and its core convexes to form the recessed forward cylindrical cavity in end face center thereafter significantly forward.

The utility model compared with prior art has the following advantages:

Owing to adopted the output end cap of drive motor (18) to be connected with pump case (19) by isolation bearings plate (5), at the fixedly connected supporting axle in isolation bearings plate (5) intermediate portion (4), supporting axle (4) outer end flexibly connects rotating sleeve (11) by fixedly connected supporting sleeve (12), rotating sleeve (11) is gone up the structural type of retaining ring (17), sliding gasket (9), following retaining ring (16) to being fixedly connected sequentially near support plate (5) end, thereby, simple in structure, cost is low, be convenient to maintenance, applied widely; Again because each rotatable parts all adopts high hardness pottery and alloy material to match with having the self-lubricating property material, so wear-resisting, high temperature resistant, corrosion-resistant, ne-leakage, life-span are long.

Description of drawings:

Figure: be the utility model concrete structure schematic representation

1, motor shaft 2, outer magnet rotor 3, external magnet 4, supporting axle

5, isolation bearings plate 6, interior magnet rotor 7, bolt 8, wearing layer

9, sliding gasket 10, drain opening 11, rotating sleeve 12, supporting sleeve

13, water intake 14, impeller 15, internal magnet 16, following retaining ring

17, go up retaining ring 18, drive electrode 19, pump case

Embodiment:

Pump case (19) is by metal, plastics, a kind of making in the stupalith, it is an end conoid shape, the other end is the class cylinder bodily form, the cone tip part of conoid is connected with water intake (13), class cylindrical body cylinder side is connected with drain opening (10), its inwall die casting has wearing layer (8), wearing layer (8) adopts pottery, rubber, a kind of making in plastics and the anticorrosion antiwear alloy material, pump case (19) is fixedlyed connected with the output end cap of drive motor (18) by isolation bearings plate (5), isolation bearings plate (5) is also used weak magnetic conductive metal, plastics, a kind of making in the stupalith, the fixedly connected supporting axle in position (4) therebetween, supporting axle (4) outer end flexibly connects rotating sleeve (11) by fixedly connected supporting sleeve (12), supporting sleeve (12) is made and smooth surface by pottery or high hardness alloy, supporting sleeve (12) is held the retaining ring (16) that is fixedly connected sequentially down near isolation bearings plate (5), following retaining ring (16) upper end is by retaining ring (17) in sliding gasket (9) connection, sliding gasket (9) is made by the good fluoroplastic of self lubricity, following retaining ring (16) is fixedlyed connected with support plate (5), last retaining ring (17) is fixedlyed connected with described impeller (14), impeller (14) external stability connects wearing layer (8), wearing layer (8) adopts pottery, rubber, a kind of making in plastics and the anticorrosion antiwear alloy material, it is coniform or class is hemispherical and there is a water sucking mouth at the center that impeller (14) profile is that front-end face (feed-water end) is cambered outwards class, thereafter it is coniform or class is hemispherical that end face is the class of corresponding forward end (feed-water end) depression, and its core forward end convexes to form the recessed forward cylindrical cavity in ear end face center, this cavity inner wall is closely fixedlyed connected with rotating sleeve (11), and the axle center of rotating sleeve (11) is identical with the axle center of impeller (14), magnet rotor (6) in the ear end face of impeller (14) is fixedly connected by bolt (7), and the front-end face of the ear end face of impeller (14) and interior magnet rotor (6) matches, the ear end face of interior magnet rotor (6) also is recessed forward class taper shape or class hemisphere, face surface internal fixation connects the concentric internal magnet (15) of at least 2 circles in its back-end, the axis of rotation of interior magnet rotor (6) is also identical with impeller (14) axle center, the ear end face of isolation bearings plate (5) front-end face and interior magnet rotor (6) matches and keeps certain interval, magnet rotor (2) outside the motor shaft (1) of drive motor (18) is upward fixedly connected, outer magnet rotor (2) is gone up the fixedly connected and corresponding external magnet of internal magnet (15) (3), outer magnet rotor (2) is positioned outside the isolation bearings plate (5) by drive motor (18) output end cap, its front-end face and isolation bearings plate (5) ear end face match and keep certain running clearance, and the front-end face of isolation bearings plate (5) is incorporated into the certain running clearance of little maintenance by supporting axle (4) that is positioned at its middle part and the supporting sleeve of fixing (12) thereof with magnet rotor (6) ear end face activity orientation and kiss.

During use, start drive motor (18), drive outer magnet rotor (2) rotation by motor shaft (1), by the permanent magnet external magnet (3) on the outer magnet rotor (2) and the magnetic force between the permanent magnet internal magnet (15) on the interior magnet rotor (6) and drives impeller (14) is rotated, water sucked from water intake (13) so that by impeller (14) outside drain opening (10) excavationg pump; Pump case during installation (19) up, drive motor (18) is following, special shape owing to impeller (14) makes the current of its discharge produce certain upwards thrust counteracting or partial offset impeller (14) to it when pump operation like this, interior magnet rotor (6), the gravity of outer magnet rotor (2) and drive motor (18) rotor, that is to say when impeller (14) runs well, impeller (14), interior magnet rotor (6), outer magnet rotor (2) and drive motor rotor all are in moving state of suspension upwards, thereby significantly reduced to the axial pressure of the bearing of drive motor (18) and to sliding gasket (9), last fixed cover (17), the axial static pressure of following fixed cover (16) and mill sassafras power, therefore prolong working life greatly, reduced power consumption.

Claims

1, a kind of floated centrifugal pump, by outer magnet rotor (2), interior magnet rotor (6), drain opening (10), water intake (13), impeller (14), drive motor (18), pump case (19) is formed, the output end cap that it is characterized in that described drive motor (18) is connected with pump case (19) by isolation bearings plate (5), at the fixedly connected supporting axle in isolation bearings plate (5) intermediate portion (4), supporting axle (4) outer end flexibly connects rotating sleeve (11) by fixedly connected supporting sleeve (12), supporting sleeve (12) is near the fixedly connected retaining ring (16) down of support plate (5) end, following retaining ring (16) upper end is by retaining ring (17) in sliding gasket (9) connection, following retaining ring (16) is fixedlyed connected with support plate (5), and last retaining ring (17) is fixedlyed connected with described impeller (14).

2, floated centrifugal pump according to claim 1 is characterized in that fixedlying connected by bolt (7) between described impeller (14) and the interior magnet rotor (6).

3, floated centrifugal pump according to claim 1 is characterized in that fixedly connected wearing layer (8) on the inwall of described pump case (19), and impeller (14) external stability connects wearing layer (8).

4, floated centrifugal pump according to claim 3 is characterized in that described wearing layer (8) adopts a kind of the making in pottery, rubber, plastics and the anticorrosion antiwear alloy material.

5, according to claim 1,2,3 and 4 described floated centrifugal pumps, it is characterized in that described impeller (14) is coniform or class is hemispherical and there is a pulp absorbing hole at the center for front-end face is cambered outwards class, thereafter it is coniform or class is hemispherical that end face is the corresponding class that concaves, and its core convexes to form the recessed forward cylindrical cavity in ear end face center significantly forward.

6, floated centrifugal pump according to claim 1, it is characterized in that locating arrangement successively before and after described interior magnet rotor (6), isolation bearings plate (5), the outer magnet rotor (2), it is class taper shape or class hemisphere that front-end face is all made in its exterior edge face, thereafter end face is the class taper shape or the class hemisphere of depression forward, its on the spatial position mutually the maintenance activity fix and its rear and front end face between coincide corresponding respectively in twos mutually and maintain suitable free gap.