CN2225105Y

CN2225105Y - Single phase electric motor for water pump

Info

Publication number: CN2225105Y
Application number: CN 95203070
Authority: CN
Inventors: 姜文海; 黄以良; 王佳寅; 章宗显
Original assignee: HANGZHOU WATER PUMP GENERAL FACTORY
Current assignee: HANGZHOU WATER PUMP GENERAL FACTORY
Priority date: 1995-02-20
Filing date: 1995-02-20
Publication date: 1996-04-17
Anticipated expiration: 2005-02-20

Abstract

The utility model belongs to a single phase electric motor, particularly a single phase electric motor for water pumps, comprising a base filled with stators, rotors arranged in the base as well as end covers installed on both ends of the base. The utility model is characterized in that a sliding bearing is matched between the end covers and a rotary shaft; a shielded sleeve is arranged between the stators and the rotors; the shielded sleeve is fixedlyconnected with the end covers and the base. The single phase electric motor for water pump has the advantages of simple structure, small noise and strong sealing property, etc.

Description

The monophase machine that is used for water pump

The utility model belongs to a kind of monophase machine, particularly relates to a kind of monophase machine that is used for water pump.

In background technology, with the matching used motor of water pump mainly by support, end cap, stator and rotor are formed up and down, the rotating shaft of rotor is a solid shafting, motor and pump mostly adopt the mode of coaxial cooperation to work, mainly mechanically-sealing apparatus in the rotating shaft realizes by being installed in sealing between the two, in actual use, the pump of mechanically-sealing apparatus easily leaks, the result of use that motor when operation temperature rise, noise be big, influenced pump.

The purpose of this utility model is to provide a kind of simple in structure, noise is little, sealing is strong monophase machine that is used for water pump.

The purpose of this utility model is achieved in that it comprises in support that stator is housed, the support and is provided with rotor, end cap up and down is equipped with at the two ends of support, be combined with sliding bearing between end cap and the rotating shaft about it is characterized in that, between stator and rotor, be provided with housing, housing and end cap and support Joint up and down.

The utility model is compared with background technology has single, compact, easy to use, safe, advantages such as noise is low, nothing leakage simple in structure.

In conjunction with the accompanying drawings and embodiments, specifically describe as follows to the utility model:

Fig. 1 is a structural representation of the present utility model

In Fig. 1, the utility model comprises the support 6 that stator 7 is housed, be provided with rotor 15 in the support 6, end cap 11 up and down is equipped with at the two ends of support 6,5, end cap 11 up and down, 5 and the rotating shaft 17 of rotor 15 between be provided with sliding bearing 9,18, be provided with housing 8 between stator 7 in support 6 and the rotor 15, the two ends of housing 8 are fixed in support 6 by upper end cover 11 and bottom end cover 5 with it, in upper end cover 11 and bottom end cover 5, be provided with sealing ring 10,20, on sliding bearing 9, be provided with lubrication groove 13, at the top of upper end cover 11 plug screw 12 is housed, on bottom end cover 5, offer through hole 21, sliding bearing 18 is provided with lubrication groove 19, and the center of rotating shaft 17 is a centre bore that communicates 16, and the lower end of rotating shaft 17 extends to outside the bottom end cover 5, housing 8 adopts and hinders the magnetic material to be made, therefore, allow medium to pass through in the motor cavity, need not with mechanical seal dielectric isolation between pump and motor.When the utility model uses, impeller 1 with water pump is installed in the rotating shaft 17 earlier, the pump housing 3 and bottom end cover 5 Joints, when rotor 15 rotating operations, impeller 1 is operation simultaneously also, at this moment, the medium that flows into from the pump housing 3 entrance points 22 enters into hollow impeller 1, because impeller 1 is at high speed rotating, under action of centrifugal force, entrance end at impeller 1 has formed pressure differential, like this, most medium that flows out is output from the port of export of the pump housing 3 volutes, and little part medium flows to rotor 15 chambeies by the through hole 21 of bottom end cover 5 and the lubrication groove 19 of sliding bearing 18, then through lubrication groove 13, the centre bore 16 of rotor 15 backflows to the import low-pressure area of impeller 1, circulation circuit in forming, this circulation circuit has not only played the effect of lubricated rotating shaft 17, has also taken away the heat that is produced when rotating simultaneously, reduce the noise that produces when rotating shaft 17 is rotated, thereby prolonged life cycle.

Claims

1, a kind of monophase machine that is used for water pump, comprise the support (6) that stator (7) are housed, be provided with rotor (15) in the support (6), the two ends of support (6) are equipped with end cap (11), (5) up and down, it is characterized in that being combined with sliding bearing (9), (18) between end cap (11), (5) and the rotating shaft (17) up and down, between stator (7) and rotor (15), be provided with housing (8), housing (8) and end cap (11), (5) and support (6) Joint.

2, motor according to claim 1, the center that it is characterized in that the rotating shaft (17) of described rotor (15) is the centre bore (16) that communicates, offer through hole (21) on the bottom end cover (5), sliding bearing (9), (18) are provided with lubrication groove (13), (19).