CN2378596Y

CN2378596Y - Fluid flow regulator

Info

Publication number: CN2378596Y
Application number: CN 99231827
Authority: CN
Inventors: 朱继跃
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-10
Filing date: 1999-06-10
Publication date: 2000-05-17
Anticipated expiration: 2009-06-10

Abstract

The utility model relates to a fluid flow regulator, provided with a sealing chamber composed of a device basal body, an upper and a lower cover plates, wherein, the inner wall of the chamber is fixedly provided with a valve port body provided with a valve port of a special shape for limiting the fluid flow and three rotating shafts, one shaft is provided with a motor rotor, one shaft is provided with a reduction gear, and another shaft is provided with a rotating wheel; the rotating wheel is provided with a valve port which has the same shape with the valve port on the valve port body and is matched with the valve port, and the quantity of the fluid flow can be regulated through the rotation of the motor rotor to regulate the size of the through flow area of the valve port. The utility model has the advantages that the motor rotor is arranged and sealed in the device basal body well, the motor can regulate and control the area of the valve port with high precision, the fluid flow is controlled strictly, and the fluid flow regulator has the advantages of simple structure, low manufacture cost and wide and convenient application.

Description

The fluid flow rate controlling device

The utility model relates to a kind of flow regulator, a kind of fluid flow device for automatically regulating of definitely saying so.

Usually the regulation and control of gas or fluid flow all are that the armrest movable valve is controlled, and often sensitivity is relatively poor, poor sealing, and flow is done less than accurate adjusting.

The purpose of this utility model is to the user provides a kind of simple in structure, the control accuracy height, and cost is low and fluid flow rate controlling device that price performance is excellent.

The purpose of this utility model adopts following technological scheme to realize:

The utility model constitutes seal chamber by device matrix, upper and lower cover plate, be fixed with valve port on the cavity inner wall, have the arc valve port of limit fluid flow on the valve port, and three rotating shafts are housed, in the rotating shaft stepping motor rotor is housed, in another rotating shaft ratio wheel is housed, in the 3rd rotating shaft slower moving runner of rotating speed is housed.Rotor is by being meshed with ratio wheel and driving the ratio wheel rotation with its coaxial wheel that drags, moving runner in the 3rd rotating shaft, slowly rotate in dragging under the wheel drive of ratio wheel coaxial, the arc valve port that same shape is arranged on the moving runner, and match with valve port on the valve port, equivalent changes the flow area of valve port with the variation of moving runner corner.On the outer wall on device matrix top,, motor stator winding is installed with the corresponding position of rotor.This motor can be general stepper motor, also can be special monopulse stepper motor.The technical measures of particular importance are: the rotor of motor is contained in the device matrix chamber, can guarantees that flow control device has good sealing property.The monopulse stepper motor is to make rotor by the permanent magnet of a diametrical magnetization, and two windings that independently make rotor do the clockwise and anticlockwise campaign are made stator and constituted.The position of its staor winding makes the axle center magnetic line of force not point to the rotor rotation center, but the magnetic line of force direction of two positive and negative windings is parallel to each other, and the two winding axle center magnetic lines of force apart from the rotor rotation center to the magnetic line of force that parallels with the axle center magnetic line of force, distance is equidistant.

This monopulse motor is a kind of corner motor of deciding, regulation and control as valve port flow area size on the flow control device valve port, can accomplish the valve port flow area is changed and the equivalent change with the moving runner corner, the flow of convection cell can be accomplished accuracy controlling, and sensitivity is high.

Advantage of the present utility model is this fluid-flow control apparatus, the rotor arrangement of its drive motor is good seal performance in device matrix chamber, motor can be controlled fluid flow accurately and efficiently, the regulating controller overall structure is simple, low cost of manufacture, and it is good more easy to operate than present manually operated valve performance, easy to utilize.

The utility model has provided the sectional drawing of apparatus structure.

Figure below is valve port and a rotating mechanism plan view in the regulating controller cavity in the accompanying drawing.

Mark among the figure: 1 is the flow control device matrix, and 2 is upper cover plate, and 3 is lower cover plate, 4 for having the valve port of bowed shape valve port, and 5 is rotor, and 5 ' is the rotating shaft of rotor, 6 is ratio wheel, and 6 ' is the ratio wheel rotating shaft, and 7 is moving runner, have on it with valve port on the arc identical and valve port that matches, 7 ' is the moving runner rotating shaft, and 8 is fluid inlet, and 9 is fluid output, 10 is motor stator, and 11 is arc valve port.

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

Fluid inlet 8 connects fluid circuit, fluid output 9 connects fluid circuit, motor stator 10 can be made into clockwise and anticlockwise double winding list stator independent of each other, also can be made into the two stators of clockwise and anticlockwise double winding independent of each other, and the iron core winding that can also be made into two symmetries is made two stators.When the two ends lead-in wire that just turns around group is alternately imported the different direct current of polarity, the both positive and negative polarity alternate at two ends, under the staor winding the action of a magnetic field, rotor begins just to change, the every alternate of both positive and negative polarity once, the positive turnback of rotor.When the two ends of stator counter-rotating winding lead-in wire is alternately imported the different direct current of polarity, the both positive and negative polarity alternate at two ends, under the staor winding the action of a magnetic field, rotor begins counter-rotating, anti-turnback of rotor of every alternate has so just realized the positive and negative quantitative rotation of rotor.Change the rotating speed that both positive and negative polarity alternate frequency just can change rotor.When rotor 5 is just changeing, having driven the coaxial wheel 12 that drags rotates, dragging the ratio wheel 6 that wheel 12 driven simultaneously with its engagement rotates, the moving runner 7 that wheel 13 driven with its engagement that drags by it rotates again, the valve port 7 of arc valve port 11 below it when moving runner 7 rotates on it is shifted, the flow area of valve port 11 increases, and liquid increases by the flow of valve port 11 thereupon, thereby the fluid flow that is flowed out by regulating controller outlet 9 also increases.

The flow area that will control valve port 11 when rotor 5 counter-rotatings reduces, and liquid also reduces by the flow of valve port 11 thereupon, and the fluid flow that is flowed out by device outlet 9 also reduces thereupon.Change the governing speed that motor speed just can change fluid flow.

Claims

1, a kind of fluid flow rate controlling device, by device matrix (1), the upper cover plate (2) that is provided with the lower cover plate (3) of fluid inlet (8) and is provided with fluid output (9) constitutes, it is characterized in that: device matrix (1) chamber inner fixing device has valve port (4), offer the valve port of limit fluid flow on the valve port (4), and on valve port (4), three rotating shafts (5 ') are housed, (6 ') and (7 '), stepping motor rotor (5) is housed in the rotating shaft (5 '), ratio wheel (6) is housed in the rotating shaft (6 '), rotating shaft is equipped with moving runner on (7 '), and the port shape on it is identical with port shape on the valve port.

2, according to the described fluid flow rate controlling device of claim 1, it is characterized in that being shaped as of two valve ports that cooperatively interact on valve port (4) and the moving runner (7) arc (11).

According to the described fluid flow rate controlling device of claim 2, it is characterized in that 3, rotor (5) is arranged in the seal chamber of device, and that stator (10) is arranged on device is external.

According to the described fluid flow rate controlling device of claim 3, it is characterized in that 4, rotor is the garden cylindricality permanent magnet of diametrical magnetization, stator is made single stator with clockwise and anticlockwise double winding independent of each other.

According to the described fluid flow rate controlling device of claim 3, it is characterized in that 5, rotor is the garden cylindricality permanent magnet of diametrical magnetization, stator is made two stators with clockwise and anticlockwise double winding independent of each other.

According to the described fluid flow rate controlling device of claim 3, it is characterized in that 6, rotor is the garden cylindricality permanent magnet of diametrical magnetization, stator is made two stators with the iron core winding with two symmetries.