CN2409368Y

CN2409368Y - Handy-to-detach pipe centrifugal pump

Info

Publication number: CN2409368Y
Application number: CN 00216308
Authority: CN
Inventors: 叶柏祥; 丁国进; 潘建平
Original assignee: CHUANGXIN WATER PUMP FACTORY SHANGHAI
Current assignee: CHUANGXIN WATER PUMP FACTORY SHANGHAI
Priority date: 2000-01-26
Filing date: 2000-01-26
Publication date: 2000-12-06
Anticipated expiration: 2010-01-26

Abstract

The utility model discloses a centrifugal pump with easy disassembling pipelines. The utility model is characterized in that a pump core is that one end of a shaft passes through a pump cover and is arranged in a pump body, the end shaft in the pump body is provided with an impeller, and the other end of the shaft is fixedly connected with a shaft coupling; a bearing body is arranged in a bracket; the bearing body is fixedly connected with the pump cover; a thrust bearing and a radial bearing are arranged in the bearing body; the thrust bearing and the radial bearing are all fixedly connected with the shaft; the lower end of the radial bearing is provided with a seal piece. When the utility model is repaired, the pump body, the bracket, and a motor can be reserved on a base, the shaft coupling and the pump core can be drawn from the pump body to be repaired, and the utility model has convenient assembly and disassembly.

Description

The detachable type Piping Centrifugal Pumps

The utility model relates to the technical field of water pump, specifically mainly is the improvement that the pump core to centrifugal pump carries out.

Centrifugal pump in the market mostly has the following disadvantages:

1, pump and motor adopt rigidity direct connection structure, and the assembling difficulty of pump is bigger, and the end thrust of pump is big, the easy heating burnout of the bearing in the motor;

2, pump must be torn motor open when the maintenance maintenance, and dismounting is all inconvenient, maintenance difficult, the supporting also difficulty of the maintenance of motor of special-purpose Piping Centrifugal Pumps;

3, pump structure poor rigidity causes the vibrations of pump and the fracture of part easily.

The purpose of this utility model is to provide a kind of easy-to-dismount centrifugal pump.

The technical solution of the utility model is achieved in that the detachable type Piping Centrifugal Pumps, it mainly comprises the pump housing, be contained in pump cover and support on the pump housing, in support, be provided with the pump core, coupling, motor is housed outside support, the output shaft of motor is connected with coupling, it is characterized in that: the pump core is that an end of axle passes pump cover and places in the pump housing, on this end axle in the pump housing impeller is housed, the other end of axle is fixedlyed connected with coupling, bearing support is arranged in support, and this bearing support is fixedlyed connected with pump cover, is provided with thrust-bearing and radial bearing in bearing support, thrust-bearing, radial bearing is all fixedlyed connected with axle, establishes a Sealing in the lower end of radial bearing.

The utility model is owing to be provided with thrust-bearing and radial bearing in bearing support, thrust-bearing, radial bearing is all fixedlyed connected with axle, when centrifugal pump overhauls, the pump housing, support and motor can be stayed on the basis, coupling and pump core can be extracted out from the pump housing and overhaul, dismounting is very convenient, and the coupling between this centrifugal pump and the motor adopts the metallic laminations coupling of using on space technology, have between energy small electromotor and the pump because foozle, alignment error, distortion after the carrying and influence of temperature variation are caused axially, radially be offset with angle, can play weakening to pump, the vibration isolation effect makes the operation of pump more reliable.

Fig. 1 is the utility model one embodiment's a structural representation

The schematic representation of Fig. 2 state when the pump core among Fig. 1 pulled down

The utility model will be further described below in conjunction with drawings and Examples.

The utility model mainly comprises the pump housing 1, be contained in pump cover 2 and support 3 on the pump housing 1, in support 3, be provided with the pump core, coupling 5, outside support 3, motor is housed, the output shaft of motor is connected with coupling 5, it is characterized in that: the pump core is, one end of axle 6 passes pump cover 2 and places in the pump housing 1, on this end axle 6 in the pump housing 1 impeller 4 is housed, present embodiment is to pass through key, packing ring and high-strength bolt are fixed on impeller on the axle 6, the other end of axle 6 is fixedlyed connected with coupling 5, bearing support 7 is arranged in support 3, this bearing support 7 is fixedlyed connected with pump cover 2, in bearing support 7, be provided with thrust-bearing 8 and radial bearing 9, thrust-bearing 8, radial bearing 9 is all fixedlyed connected with axle 6, specifically can adopt nut, bolt and packing ring are fixed, be that bearing outer ring leans on the bearing support bolt, bearing inner race is fixing with axle, bearing can be fixed in the bearing support like this, simultaneously again can be along with axle rotates, because the bearing rotation produces friction, therefore need to adopt grease to be lubricated to bearing, establish a Sealing 10 in the lower end of radial bearing 9 during concrete enforcement, can avoid water and dust to enter bearing like this, lubricating grease is wherein remained in the bearing; In order to prevent that further the lubricating grease that dust enters in bearing and the bearing from leaking, present embodiment is established a ring 11 in the lower end of thrust-bearing 8, adopt bolt 12 fixedly connected between the pump cover 2 and the pump housing 1, also being provided with sealing gasket between them seals, impeller 4 can be given birth to lift at the pump housing 1 transfer movable property, 6 on pump cover 2 and axle adopt mechanical seal 13, dry grind to prevent that air from entering, and in pump cover, be provided with vent hole, the material selection stainless steel of mechanical seal 13 and axle 6, in liquid, can not get rusty, improve working life; Bearing support 7 is fixedlyed connected with pump cover 2 by bolt 14, thrust-bearing 8 and radial bearing 9 are housed in bearing support 7, and be provided with tank filler sleeve 15 at the close thrust-bearing 8 and radial bearing 9 places of bearing support 7, make bearing under the situation that does not need to dismantle, bearing is refueled, bearing is selected the radial thrust bearing of the wide-angle of mounted in pairing mode for use, can bear the axial force and the radial force that are produced by impeller, and can reach 30000 hours the working life of bearing.

During use the pump housing 1 following footing of the present utility model is fixed by bolts on the base plate on basis, each personal bolt of import and export flange on the pump housing is connected on the flange of in-and-out pipe, motor is contained on the support, support is by being bolted on the pump housing, the output shaft of motor is connected with an end of metallic laminations coupling, driving axle by coupling when motor rotates rotates, impeller rotates simultaneously, with liquid intake impeller from the water intake of the pump housing, the rotation of blade force fluid in the impeller, liquid under action of centrifugal force through the extrusion runner of the pump housing to delivery side of pump.

Claims

1, the detachable type Piping Centrifugal Pumps, it mainly comprises the pump housing, be contained in pump cover and support on the pump housing, in support, be provided with the pump core, coupling, motor is housed outside support, the output shaft of motor is connected with coupling, it is characterized in that: the pump core is that an end of axle passes pump cover and places in the pump housing, on this end axle in the pump housing impeller is housed, the other end of axle is fixedlyed connected with coupling, bearing support is arranged in support, and this bearing support is fixedlyed connected with pump cover, is provided with thrust-bearing and radial bearing in bearing support, thrust-bearing, radial bearing is all fixedlyed connected with axle, establishes a Sealing in the lower end of radial bearing.

2, by the described detachable type Piping Centrifugal Pumps of claim 1, it is characterized in that: establish a ring in the lower end of thrust-bearing.

3, by the described detachable type Piping Centrifugal Pumps of claim 1, it is characterized in that: pump cover and between centers adopt mechanical seal.

4, by the described detachable type Piping Centrifugal Pumps of claim 1, it is characterized in that: coupling adopts flexible laminated membrane coupling.

5, by the described detachable type Piping Centrifugal Pumps of claim 1, it is characterized in that: close thrust-bearing and radial bearing place at bearing support are provided with tank filler sleeve.