CN2342129Y

CN2342129Y - Non-contact type magnet push-pull piston permanent magnet pump

Info

Publication number: CN2342129Y
Application number: CN 98207120
Authority: CN
Inventors: 王文阁
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-07-30
Filing date: 1998-07-30
Publication date: 1999-10-06
Anticipated expiration: 2008-07-30

Abstract

The utility model relates to a non-contact type magnetic push and pull piston permanent magnet pump composed of a pump in which permanent magnets are inlaid and a motor, and the motor and the pump are fixed together. A pump body on which a water inlet and a water outlet are arranged is formed by the seal of a housing and an end cover, and a rotary disk is fixed on the rotary shaft of the motor. A permanent magnet sharing the same polarity as a magnet on a piston in the pump body is inlaid on the rotary disk, a unidirectional water injection valve is installed in the piston body, and a push and pull spring is arranged between the piston and the end cover of the pump body. Two permanent magnets separated by a 90 DEG arc are fixed on the outer edge of the rotary disk. The utility model enlarges the outlet pressure and has the advantages of long stroke, no friction loss, no noise, and no oscillation phenomenon, and the continuous water injection can be guaranteed.

Description

A kind of contactless magnetic push-and-pull piston permanent magnet pump

The utility model relates to a kind of contactless magnetic push-and-pull piston permanent magnet pump.

At present, the existing piston electromagnetic pump is to produce magnetic force by electromagnetic field, makes the piston body pressure spring of being made by pure iron, push one-way valve open, form the pressure water filling, because outlet pressure is little, underfed, noise is big, vibration is big, and the mechanical friction loss that the gap error between while piston body and the valve body causes makes the piston type electromagnetic pump life-span be subjected to very big influence, during the full load operation, the easy overheated burning pump of winding coil that shell is outer can not satisfy the needs of continuous operation.

The purpose of this utility model provides a kind of contactless magnetic push-and-pull piston permanent magnet pump, it is at the pure iron piston body of piston type electromagnetic pump and is installed in the local permanent magnet that studs with same polarity respectively on the rotating disc on the pump motor axle, the principle of utilizing like pole to repel each other, promote magnetic pumping one-way valve pressure spring and carry out work, thereby increase export pressure, reduce the friction loss of piston body and the heat that mechanical friction produces simultaneously, prolong the working life and the continuity of guaranteeing work of pump.

The technological scheme that the utility model adopted is as follows, it is made up of motor that is fixed together and the pump that studs with permanent magnet, the pump housing is made up of housing and end bracket enclosed, entery and delivery port is arranged on it, on the running shaft of motor, be fixed with a rotating disc, stud with on this rotating disc with pump housing inner carrier on magnet be the permanent magnet of same polarity, the equally spaced symmetric arrays of this permanent magnet, the one way entrapped water valve is housed in the described piston body, between piston and pump housing end cap, is equipped with a push-and-pull spring.

The working principle of this pump is, in having the rotating disc rotary course of magnet, when the permanent magnet on the rotating disc is relative with permanent magnet on the piston, because two blocks of permanent magnets are same polarity, so produce the piston body compression push-and-pull spring that repulsion promotes to be equipped with one-way valve, one-way valve and piston body sealed mouth gap are strengthened, made water unidirectional outflow under pressure; When rotating disc magnet and piston body magnet stagger, the recovery elastic force of spring joins one-way valve and piston body sealed mouth, and water can not adverse current, so continue to flow out to same direction, this contactless magnetic field push-and-pull piston permanent magnet pump, make that outlet pressure is big, stroke length, no friction loss, noise free, friction phenomenon, guarantee continuous water filling.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is the utility model structural representation

As shown in the figure, on motor output shaft 1, be fixed with a rotating disc 2, be fixed with two block permanent magnets 3 that are divided into 90 ° of arcs mutually on the outer rim of this rotating disc 2, motor is fixed on the chassis 5 by support 4, and the pump housing 6 is spirally connected by housing 61 and end cap 62 and is sealed, and water inlet 621 is arranged on the end cap 62, water outlet 611 is arranged on the housing 61, and the pump housing 6 is fixed on the chassis 5 by its base 63.Piston 7 is housed in the pump housing 6, and corresponding ends with rotating disc are equipped with permanent magnet 8 in this piston 7, and this permanent magnet 8 is identical with permanent magnet 3 polarity on the rotating disc 2.The other end of piston 7 is equipped with an one-way valve 9, is with valve spring 10 on it.Be water chamber 11 between the end cap 62 of the piston 7 and the pump housing 6, be built-in with a push-and-pull spring 12 at this water chamber 11, an end of this spring is against on the end cap 62, and the other end is against on the piston 7.

Its working principle is, permanent magnet 3 on the rotating disc 2 when the motor shaft band rotates to when just corresponding with the permanent magnet 8 of pump housing inner carrier 7, because two blocks of permanent magnets are same polarity, so produce repulsive force, piston 7 is advanced to water chamber 11 directions, at this moment the push-and-pull spring 12 in the water chamber 11 is under pressure, make by water inlet 621 and enter water pressurized in the water chamber 11, under the pressure effect of water, one-way valve on the piston 79 is promoted, make on the one-way valve spring 10 by compression, one-way valve 9 strengthens with sealed mouth 71 gaps on the piston body 7 like this, the water in the water chamber 11 enter in the water filling chamber, space 13 in the piston; When the permanent magnet 3 of rotating disc 2 when the motor shaft band leaves out permanent magnet 8 on the piston 7, push-and-pull spring 12 restores to the original state, under its elastic force effect, piston 7 is rebounded, spring 10 on the one-way valve 9 also rebounds, make sealed mouth 71 sealings on one-way valve 9 and the piston 7, the water in the water filling chamber 13 can not adverse current and continue to flow out to water outlet 611 directions, enters in the outlet pipe.The rotation of motor, 2 rotations of driven rotary dish, the effect that permanent magnet 3 on the rotating disc and the permanent magnet 8 on the piston go round and begin again, 7 do to-and-fro motion back and forth of piston, water then constantly sucks through water chamber 11 from water inlet 621, and flow out from water outlet 611 water filling chamber 13.

Claims

1, a kind of contactless magnetic push-and-pull piston permanent magnet pump, it is made up of motor that is fixed together and the pump that studs with permanent magnet, the pump housing is made up of housing and end bracket enclosed, entery and delivery port is arranged on it, it is characterized in that: be fixed with a rotating disc on the running shaft of motor, stud with on the rotating disc with pump housing inner carrier on magnet be the permanent magnet of same polarity, the one way entrapped water valve is housed in the described piston body, between piston and pump housing end cap, be equipped with a push-and-pull spring.

2, a kind of contactless magnetic push-and-pull piston permanent magnet pump according to claim 1 is characterized in that: be fixed with two blocks of permanent magnets that are divided into 90 ° of arcs mutually on the rotating disc outer rim.

3, a kind of contactless magnetic push-and-pull piston permanent magnet pump according to claim 1, it is characterized in that: an end of push-and-pull spring is against on the end cap of the pump housing, and the other end is against on the piston.