CN2150359Y

CN2150359Y - Permanent-magnet high-efficient piston pump

Info

Publication number: CN2150359Y
Application number: CN 93236197
Authority: CN
Inventors: 顾为东
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-02-06
Filing date: 1993-02-06
Publication date: 1993-12-22
Anticipated expiration: 2003-02-06

Abstract

The utility model relates to a permanent-magnet high-efficient plunger pump. Both ends of the tubular pump body of the utility model are respectively connected with a liquid-feeding connecting tube and a liquid-discharging connecting tube; the pump body is provided with a permanent-magnet hollow cylindrical plunger whose both ends are provided with an inlet and an outlet, and is provided with a one-way valve connected with a spring; both ends of the pump body are provided with two series coils which have opposite winding direction; the coil is connected with an AC power supply. The pump uses the action of the alternating magnetic field of the electromagnetic coil and the permanent-magnet plunger to cause the plunger to reciprocate up and down in the pump body, obtaining the purpose of liquid extraction. The utility model has high efficiency, small size and simple structure, and can regulate the flow quantity and lift head.

Description

Permanent-magnet high-efficient piston pump

The utility model is about extracting a kind of plunger pump that liquid is used.

The miniature liquid pump that uses in production practices and daily life at present adopts motor drives centrifugal pump and axial-flow pump more, or gear pump, but many volumes are big, electric machine temperature rise is high, poor sealing performance, cost height, and can not carry out the adjusting of flow and lift.Also once occurred crystal diode plunger liquid pump in recent years, and be mainly used in and extract cooling liquid cutter and metal processing piece are cooled off, but also low owing to the power utilization rate, flow is little, lift is low fails popularization.

The purpose of this utility model provide a kind of simple in structure, volume is little, good seal performance and can carry out flow and lift is regulated, and directly use the efficient plunger pump of novel permanent magnetic of ac power supply.

The efficient plunger pump of the utility model permanent magnetism has a tubulose pump housing, the pump two ends are connected to liquid inlet pipe and drain pipe respectively, a permanent magnetism hollow cylindrical piston is arranged in the pump housing, the two ends of piston have import and outlet, import is provided with the one-way valve that links to each other with spring, two opposite series windings of direction of winding are equipped with at pump housing two ends, and coil links to each other with ac power supply.After coil power is connected because the magnetic force direction that coil produces is because of the change periodic variation of current direction, promptly repeatedly by on push and draw or push to down and draw, the generation to-and-fro motion.When piston moved upward, valve cut out, and liquid is taken over by feed liquor and sucked, when piston moved downward, valve was backed down, and liquid is pressed into pump housing upper space by piston cavity, when piston moved upward again, feed liquor was taken over and is sucked liquid again, and pump housing upper liquid is then taken over by fluid and discharged.This process is carried out repeatedly, has realized the function of liquid pump.

The utility model plunger pump volume is little, compares with existing crystal diode plunger pump and by the reciprocating pump that mechanical transmission mechanism drives, and this pump directly adopts Ac, easy to use, efficient improves and is simple in structure, also can carry out flow and lift and regulate good seal performance.

Below in conjunction with description of drawings embodiment of the present utility model.

Fig. 1 is the utility model embodiment's a structural representation, and piston is in the state of moving upward among the figure; Fig. 2 represents that this plunger pump piston is in the state that moves downward; Fig. 3 is the schematic representation of two coil direction of winding.

As Fig. 1,2, the utility model plunger pump has the tubulose pump housing 2 and

coil

3,8, pump housing two ends are connected to fluid adapter 1 and liquid inlet pipe 9, be provided with the hollow cylindrical piston made from rare earth permanent-magnetic material 4 in the pump housing, there are outlet 10, lower end import 7 in the upper end of piston, be provided with ball valve 6, this valve links to each other with spring 5, and

coil

3 and 8 is the series opposing winding, and winding mode is seen Fig. 3.The closing coil ac power supply, pump is promptly started working.When input current is positive half cycle, because

coil

3,8 is the series opposing winding, magnetic field such as Fig. 1 of producing, the upper end of the lower end of coil 3 and coil 8 is the N utmost point, is the N utmost point forever and permanent magnetic piston 4 upper ends are the S utmost point, lower end forever, thereby under Fig. 1 state, piston be subjected to leave behind on the coil magnetic field effect that pushes away and moving upward, pump housing bottom produces negative pressure, and liquid is sucked from taking over 9, and spherical valve 6 is subjected to spring 5 elastic force effects and cuts out at this moment; When input current becomes negative half period, the magnetic field of two coils changes the state as Fig. 2 thereupon, the lower end of coil 3 and the upper end of coil 8 are the S utmost point at this moment, permanent magnetic piston 4 under this action of a magnetic field by on push and draw and move downward, pump housing top produces negative pressure, valve 6 is opened because of pressure reduction up and down, liquid is pressed into piston cavity by valve 6, and press to fluid by outlet 10 and take over 1, then electric current becomes positive half cycle again, and piston moves upward again, sucks liquid from taking over 9, the liquid of piston 4 tops is then taken over 1 from fluid and is discharged, and so going round and beginning again reaches the purpose of extracting liquid.

This pump also can be regulated the distance between two

coils

3,8 as required, or regulates two distances of taking between 1,9, can change the stroke of piston 4, to reach the purpose of regulating fluid flow and lift.When piston 4 strokes strengthened, flow increased, but lift reduces simultaneously, otherwise then flow reduces, and lift increases.

Claims

1, the efficient plunger pump of permanent magnetism, the two ends of the tubulose pump housing are connected to the feed liquor adapter respectively and fluid is taken over, it is characterized in that, a permanent magnetism hollow cylindrical piston 4 is arranged in the pump housing, the two ends of piston have import 7 and outlet 10, import is provided with an one-way valve that links to each other with spring 6, and two opposite series windings of direction of winding are equipped with at pump housing two ends, and coil links to each other with ac power supply.