CN204114290U - A kind of aerostatics photoelectric control valve - Google Patents
A kind of aerostatics photoelectric control valve Download PDFInfo
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- CN204114290U CN204114290U CN201420397745.1U CN201420397745U CN204114290U CN 204114290 U CN204114290 U CN 204114290U CN 201420397745 U CN201420397745 U CN 201420397745U CN 204114290 U CN204114290 U CN 204114290U
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- valve
- optocoupler assembly
- mechanism portion
- leading screw
- aerostatics
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Abstract
A kind of aerostatics photoelectric control valve that the utility model provides, comprises valve gap, seal ring, multiple column, pedestal, control circuit, valve body, opening/closing mechanism portion and position-limit mechanism portion; Wherein: valve body is in the layout of on the utricule of aerostatics; Multiple column to lay respectively between pedestal and valve body and both is connected; Valve body has valve port, is discharged by the gas inside aerostatics air bag; Valve port cylindrical is sheathed in the endoporus of seal ring, and valve gap is covered on seal ring and valve port and is in sealing state; Flange arrangement and the valve gap of the leading screw lower end surface in opening/closing mechanism portion are fixed, and leading screw leaves for opening and closing valve gap and covers valve port; The motor in opening/closing mechanism portion is connected with control circuit, and motor control valve cover rim vertical direction promotes and moves down; Leading screw has a tapped hole, and the gear block in position-limit mechanism portion is fixed by tapped hole and leading screw, gear block with leading screw vertical up-or-down movement, the infrared light that the upper and lower spacing photocoupler set part blocking position-limit mechanism portion sends cutting-off controlling circuit, thus make motor stalling.
Description
Technical field
The utility model relates to aerostatics technical field, is a kind of photoelectric control drain tap for aerostatics, can regulates the inside and outside differential pressure of aerostatics, makes it safe and reliable and keeps aerodynamic configuration.
Background technique
Aerostatics generally refers to soft structure aircraft that proportion is lighter than air, that rely on atmospheric buoyancy force lift-off.The air bag that aerostatics is made up of polymer composite forms with the various equipment be laid on air bag and useful load, the buoyance lift gas that density ratio air is little is filled with in air bag, inside and outside air bag, the density difference of gas provides aerostatics buoyancy, thus completes aerostatics lift-off.
Aerostatics one comprise balloon and dirigible, the aerostatics of shaping goes up to the air from ground, along with flying height increase, ambient air density and atmospheric pressure reduce gradually, the buoyance lift gas volume undergoes rapid expansion in aerostatics.In order to safety and maintenance aerostatics aerodynamic configuration, aerostatics needs to discharge certain internal gas, regulates inside and outside differential pressure to certain limit, and this scope is determined by the strength of materials, countermeasures, aerodynamic parameter.
Even if aerostatics anchoring is on ground or in certain altitude flight, along with the rising of ambient temperature, the internal gas of aerostatics also can expand, and at this moment will discharge certain gas, otherwise can because overpressure makes utricule break.Therefore, aerostatics, at ground anchoring, all needs venting gas appliance to maintain inside and outside differential pressure in certain limit in be shaped lift-off and the resident process in high-altitude.
As shown in Figure 1, traditional drain tap comprises valve body 100, valve gap 200, spring 300 and pull bar 400.This drain tap relies on the elastic pulling force throttle down of spring 300, and when aerostatics internal gas pressure raises, the active force of interior pressure to valve gap 200 is greater than the preset elastic pulling force of spring 300, valve opening, Exhaust Gas, then internal drop is low, throttle down under the action of the spring, so repeatedly.This drain tap is adopted mainly to deposit problem both ways:
1. Passive Control, lacks flexibility.This is because this valve is pure mechanical structure, only rely on the effect open and close valve of spring 300 and aerostatics air pressure inside, air pressure is large, and valve is opened, and air pressure is little, and valve closes, cannot the opening and closing of ACTIVE CONTROL valve, and lack flexibility, application area is narrow.
2. control accuracy is poor.This is because the control of interior pressure realizes by Regulation spring completely, spring preset force is large, opens the pressure just height that valve needs, otherwise then little, it is large that initial tension of spring error is manually set, precision cannot ensure, and valve start back and forth, often, interval time is short, cannot control in certain limit by air bag inside and outside differential pressure, spring repeatability is poor, is unfavorable for overall voltage-controlled layout.
Model utility content
(1) technical problem that will solve
There is Passive Control to solve prior art, lacking flexibility, the problem of control accuracy difference, the utility model object aims to provide a kind of initiative and flexible, that control accuracy is high aerostatics photoelectric control valve.
(2) technological scheme
The one that the utility model provides comprises for aerostatics photoelectric control valve: valve gap, seal ring, multiple column, pedestal, control circuit, valve body, opening/closing mechanism portion and position-limit mechanism portion; Wherein: valve body cylindrical is laid with a circle screw hole, rely on these screw holes to be connected with aerostatics air bag, make valve body be in the layout of on the utricule of aerostatics; Multiple column to lay respectively between pedestal and valve body and both is linked into an integrated entity, multiple upright supports pedestal and valve body; Valve body has valve port, the gas inside aerostatics air bag is discharged; Valve port cylindrical is sheathed in the endoporus of seal ring, and valve gap is covered on the valve port of seal ring and valve body, and when valve gap is closed, valve gap, seal ring and valve port three are in sealing state; The leading screw in opening/closing mechanism portion is that the screw hole that the lower end surface flange arrangement by leading screw is laid is fixedly connected with valve gap, and the leading screw in opening/closing mechanism portion leaves for opening and closing valve gap and covers valve port; The motor in opening/closing mechanism portion is connected with control circuit, and when control circuit controls the electric machine rotation in opening/closing mechanism portion, the motor control valve cover rim vertical direction in opening/closing mechanism portion promotes and moves down; The upper-end surface of the leading screw in opening/closing mechanism portion has a tapped hole, the gear block in position-limit mechanism portion is fixedly connected with leading screw by tapped hole, during the electric machine rotation in opening/closing mechanism portion, the gear block in position-limit mechanism portion is with the leading screw vertical up-or-down movement in opening/closing mechanism portion, block the infrared light that the upper limit optocoupler assembly in position-limit mechanism portion and lower limit optocoupler assembly send, cutting-off controlling circuit, thus the motor stalling making opening/closing mechanism portion.
(3) beneficial effect
1, aerostatics photoelectric control valve of the present utility model adopts motor as actuator, optocoupler assembly is control switch, Aided design control circuit, valve can be opened and closed at any time, photoelectric control is initiative and flexible, response is fast, and pressure reduction control accuracy is high, and can the different conditions of the valve of feedback light electric control timely and accurately;
2, aerostatics photoelectric control valve of the present utility model, valve body and aerostatics air bag are fastenedly connected, and valve body opens a valve port as relief opening, and size is large, and lightweight, air displacement is large;
3, aerostatics photoelectric control valve of the present utility model, the mode that opening/closing mechanism portion adopts motor, gear drive and screw-nut body to combine, vertically open and close valve gap, leading screw and valve gap operate steadily and the self-locking of leading screw energy, make valve gap can holding position, be vented always unimpeded;
4, aerostatics photoelectric control valve of the present utility model, position-limit mechanism portion adopts gear block to block the mode of infraluminescence pipe, and reliably sensitive, freedom from vibration is good, and be more conducive to aerostatics flight, reliability is higher;
5, aerostatics photoelectric control valve of the present utility model, valve gap stroke height realizes by regulating the distance of spacing optocoupler assembly, reaches the object regulating the utility model photoelectric control valve extraction flow thus.
Aerostatics photoelectric control valve mechanism of the present utility model is excellent, lightweight, applied range, flexibly initiatively, pressure reduction control accuracy is high, stroke is adjustable, and controlled, spacing response is fast, and can the status of feedback light electric control valve promptly and accurately, contribute to the better enforcement that pressure reduction controls.
Accompanying drawing explanation
Hereinafter with reference to accompanying drawing, embodiment of the present utility model is illustrated, wherein:
Fig. 1 is prior art drain tap structural representation;
Fig. 2 is the utility model aerostatics photoelectric control valve mechanism schematic block diagram;
Fig. 3 be an example of the present utility model in off position under front view;
Fig. 4 is the partial view in Fig. 3 under the utility model device closed condition;
Fig. 5 is the control circuit schematic diagram of the utility model example;
Fig. 6 is the 3-D view after the utility model device vertically mentions valve gap arrival specified position;
Fig. 7 is the partial elevation view of the utility model device embodiment in Fig. 6.
The explanation of parts figure number
Motor 1, leading screw 2, valve gap 3,
Seal ring 4, multiple column 5, pedestal 6,
Upper limit optocoupler assembly 7, control circuit 8, gear block 9,
Support 10, base 11, follower 12,
Lower limit optocoupler assembly 13, valve body 14, driving wheel 15,
Bearing 16, sleeve 17.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearly understand, below also will be described in detail embodiment of the present utility model with reference to accompanying drawing according to example.But should illustrate, example described herein is only for explaining the utility model, instead of the restriction to protection domain of the present utility model.
As accompanying drawing 2 illustrates the utility model aerostatics photoelectric control valve mechanism schematic block diagram, Fig. 3 be described valve in off position under front view, Fig. 4 is the partial view of Fig. 3, wherein:
Described aerostatics photoelectric control valve, comprising: valve gap 3, seal ring 4, multiple column 5, pedestal 6, control circuit 8, valve body 14, opening/closing mechanism portion and position-limit mechanism portion; Wherein: valve body 14 cylindrical is laid with a circle screw hole, rely on these screw holes to be connected with aerostatics air bag, make valve body 14 be in the layout of on the utricule of aerostatics; Multiple column 5 to lay respectively between pedestal 6 and valve body 14 and both is linked into an integrated entity, and multiple column 5 is for supporting base 6 and valve body 14; Valve body 14 has valve port, for being discharged by the gas inside aerostatics air bag; The valve port cylindrical of valve body 14 is sheathed in the endoporus of seal ring 4, and valve gap 3 is covered on the valve port of seal ring 4 and valve body 14, and when valve gap 3 is closed, the valve port three of valve gap 3, seal ring 4 and valve body 14 is in sealing state; The leading screw 2 in opening/closing mechanism portion is that the screw hole that the lower end surface flange arrangement by leading screw 2 is laid is fixedly connected with valve gap 3, and the leading screw 2 in opening/closing mechanism portion leaves for opening and closing valve gap and covers valve port; The motor 1 in opening/closing mechanism portion is connected with control circuit 8, and when the motor 1 that control circuit 8 controls opening/closing mechanism portion rotates, motor 1 application valve cover 3 in opening/closing mechanism portion vertically promotes and moves down; The upper-end surface of the leading screw 2 in opening/closing mechanism portion has a tapped hole, the gear block 9 in position-limit mechanism portion is fixedly connected with leading screw 2 by tapped hole, when the motor 1 in opening/closing mechanism portion rotates, the gear block 9 in position-limit mechanism portion is with leading screw 2 vertical up-or-down movement in opening/closing mechanism portion, block the infrared light that the upper limit optocoupler assembly 7 in position-limit mechanism portion and lower limit optocoupler assembly 13 send, cutting-off controlling circuit 8, thus motor 1 stall making opening/closing mechanism portion.Wherein:
Described opening/closing mechanism portion comprises: motor 1 and driving mechanism, and described driving mechanism comprises leading screw 2, base 11, follower 12, driving wheel 15, bearing 16 and sleeve 17, wherein: motor 1 is fixedly connected with base 11; Driving wheel 15 is fixed on the output shaft of motor 1, and follower 12 engages each other with the gear teeth of driving wheel 15, forms gear drive; Follower 12 is cylindrical-shaped structure, and center has internal thread through hole, and follower 12 engages each other with the outside thread of leading screw 2, forms screw nut driven mechanism; Leading screw 2 is fixedly connected with valve gap 3, is vertically promoted by valve gap 3 and moves down; The perforate interference fit of the exterior edge face of bearing 16 and the lower end surface of sleeve 17, sleeve 17 is fixing on the pedestal 11, the endoporus of bearing 16 and the optical axis interference fit on follower 12 top, follower 12 lower end optical axis and the bearing interference fit be arranged on pedestal 6, there is bearings at such follower about 12 two ends, and follower 12 just can only rotate; Sleeve 17 inner hollow, the lower end of sleeve 17 is fixed by screw hole and base 11, the perforate of sleeve 17 lower end surface and bearing 16 interference fit, and sleeve 17 is for rigid bearing 16; Leading screw 2 moves freely inside sleeve 17 internal holes, and sleeve 17, for the protection of leading screw 2, limits teeter when leading screw 2 moves up and down.Described driving wheel 15 rotating speed is consistent with motor 1 output speed.
Described position-limit mechanism portion comprises upper limit optocoupler assembly 7, gear block 9, support 10, lower limit optocoupler assembly 13, wherein: upper limit optocoupler assembly 7 and lower limit optocoupler assembly 13 are respectively containing infraluminescence pipe and infrared crystal pipe; Upper limit optocoupler assembly 7 and lower limit optocoupler assembly 13 are installed on support 10, gear block 9 is fixedly connected with the upper end of leading screw 2, gear block 9 has three cantilever arms, go deep in U-groove bevel that support 10 has respectively, when gear block 9 moves with leading screw 2, the teeter of U-groove bevel restriction gear block 9, makes leading screw 2 and gear block 9 move up and down by straight line; The rectangle catch of gear block 9 moves up and down in the U-groove bevel of support 10, when the rectangle catch of gear block 9 moves on to infraluminescence pipe and the infrared crystal pipe centre of upper limit optocoupler assembly 7, the light that the infraluminescence pipe of upper limit optocoupler assembly 7 sends is blocked, upper optical path is in turnoff state, the non-conducting of upper limit optocoupler assembly 7, signal cut, motor 1 stall; When the rectangle catch of gear block 9 moves on to infraluminescence pipe and the infrared crystal pipe centre of lower limit optocoupler assembly 13, the light that the infraluminescence pipe of lower limit optocoupler assembly 13 sends is blocked, and lower optical path is in turnoff state, the non-conducting of lower limit optocoupler assembly 13, signal cut, motor 1 stall.Described upper optical path refers to infraluminescence pipe inside upper limit optocoupler assembly 7 and infrared crystal pipe, and diode, and electric capacity etc., see the right half part inside control circuit figure, this part is in open circuit, non-conducting.Described lower optical path refers to infraluminescence pipe inside lower limit optocoupler assembly 13 and infrared crystal pipe, and diode, and electric capacity etc., see the left-half inside control circuit Fig. 5, this part is in open circuit, non-conducting.
The driving force of described motor 1 promotes suffered gas pressure and self gravitation in order to overcome valve gap 3, and during motor 1 stall, the self-lock force support valve closure 3 utilizing leading screw 2 to be threaded is in holding position.Described holding position is that valve gap 3 can keep the state of this compression when valve gap 3 moves down press seal circle 4, valve gap 3 invariant position; When valve gap 3 moving to range also can holding position constant, make valve gap 3 away from the valve port of valve body 14.The explanation of described self-lock force: if leading screw 2 is without self-lock ability, valve gap 3 likely leaves seal ring 4, so just cause poorly sealed between topic, reason is leading screw 2 is screw connection structures, has had self-lock ability, and motor 1 can drive leading screw 2 to move, but, conversely, leading screw 2 can not make motor 1 reverse, Here it is auto-lock function.
Described upper limit optocoupler assembly 7, for the stroke height that limiting valve cap 3 rises; The stroke height of described rising carrys out by the distance between adjustment upper limit optocoupler assembly 7 and lower limit optocoupler assembly 13 height that application valve cover 3 rises, distance between upper limit optocoupler assembly 7 and lower limit optocoupler assembly 13 is larger, the stroke height that valve gap 3 rises is higher, distance between upper limit optocoupler assembly 7 and lower limit optocoupler assembly 13 is less, and the stroke height that valve gap 3 rises is lower.
Described lower limit optocoupler assembly 13, for the stroke height that limiting valve cap 3 declines; The stroke height of described decline carrys out by the distance between adjustment upper limit optocoupler assembly 7 and lower limit optocoupler assembly 13 height that application valve cover 3 declines, distance between upper limit optocoupler assembly 7 and lower limit optocoupler assembly 13 is larger, the stroke height that valve gap 3 declines is higher, distance between upper limit optocoupler assembly 7 and lower limit optocoupler assembly 13 is less, the stroke height that valve gap 3 declines is lower, but be in normally off for making aerostatics photoelectric control valve, when gear block blocks lower limit optocoupler assembly 13, valve gap answers press seal circle.
Described driving wheel 15 drives follower to rotate; Follower about 12 two ends fixed installation rolling bearing 16, two ends retrain, and follower 12 and leading screw 2 form screw nut driven mechanism.Follower 12 is axially tied, can only rotate along axle under the effect of driving wheel 15, gear block 9 is fixed in leading screw 2 upper end, gear block 9 has 3 cantilever arms, and stretch into respectively in U-groove bevel that support 10 opens, support 10 is fixed, gear block 9 can only along fluting rectilinear movement, limited in rotation system, therefore, leading screw 2 can only do upper and lower straight line motion.Leading screw 2 is fixedly connected with valve gap 3, leading screw 2 upward vertical movement, and valve gap 3 moves, and valve port is opened, leading screw 2 vertical downward movement, and valve gap 3 moves down, and valve port is closed.
Limited location protecting jacket booster action when leading screw 2 moves up and down, limits it and swings, can vertically steadily movement; Gear block 9 move on to block lower limit optocoupler assembly 13 between infraluminescence pipe and infrared crystal pipe time, valve gap 3 can press seal circle 4, makes the valve port of valve body be in sealing state when closing.
Rolling bearing 16 and follower 12 adopt interference fit, and two ends retrain, and driving wheel 15 is concordant with follower 12 end face.Bearing 16 is rolling bearing.
The control to motor 1 is responsible for by described control circuit 8, and after control circuit 8 receives the instruction of outer computer Open valve, motor 1 rotates forward, by gear drive, drive leading screw 2 straight line to rise, valve gap 3 moves, gear block 9 moves, when gear block 9 moves on between the infraluminescence pipe of upper limit optocoupler assembly 7 and infrared crystal pipe, shutoff signal, motor 1 stall, valve gap 3 hit the ceiling, valve port is opened to maximum, and be now air displacement maximum position, Link Feedback is for opening; After control circuit 8 receives the closing valve instruction of outer computer, motor 1 reverses, and by gear drive, drives leading screw 2 straight line to decline, valve gap 3 moves down, gear block 9 moves down, when gear block 9 moves on between the luminotron tube of lower limit optocoupler assembly 13 and transistor, and shutoff signal, motor 1 stall, valve gap 3 press seal circle 4, valve port is closed, and Link Feedback is for closing.The instruction of described "ON" "Off" is the control command of the utility model outside, it is the additional signal of computer, it is the judgement that computer is made according to the state of aerostatics, and the instruction of "ON" "Off" is not come from the utility model parts, is outer computer instruction; Described Link Feedback refers to the state of the spacing optocoupler assembly 7 and 13 of collection, and link should be exactly the circuit that limit assembly is formed.
Described accompanying drawing 5 is control circuit 8 schematic diagram of aerostatics photoelectric control valve, and wherein, D1, D2 are diode; A, b are two connecting ends of motor M, U
cDfor power supply, C, D are two connecting ends of power supply; T1 and T2 is infrared electro transistor, and LED1, LED2 are supporting infraluminescence pipe, and R3, R4 are the current-limiting resistance of LED1, LED2; Q1, Q2 are metal-oxide-semiconductor (or Darlington triode), and R1, R2 are for regulating metal-oxide-semiconductor gate-source voltage, and C1, C2 are protection electric capacity, and when preventing motor stalling, the instantaneous pressure of inducting damages metal-oxide-semiconductor.Infrared electro transistor T1 and infraluminescence pipe LED1, infrared electro transistor T2 and infraluminescence pipe LED2 form upper limit optocoupler assembly 7 and lower limit optocoupler assembly 13 respectively.
The cable of the utility model aerostatics photoelectric control valve is usually longer, for preventing electromagnetic interference, causes described valve misoperation.Being designed to current supply cable and being control cable, by selecting+12V or-12V direct current supply, controlling the start of described valve.
Described valve start process is as follows:
1. work as U
cD=+12V, Q2, T2 cut-off, LED2 goes out, and left half lateral circuit does not work except D2.Right half lateral circuit LED1 is bright, and T1 leads to, and electric current flows through R1, produces voltage, make Q1 conducting at Q1 grid.Form the path of C → D2 → motor M → Q1 → D.Motor M rotates forward, until LED1 is blocked, T1 ends by, Q1, motor M stall; Namely motor M is motor 1.
2. work as U
cD=-12V, Q1, T1 cut-off, LED1 goes out, and right half lateral circuit does not work except D1.Left half lateral circuit LED2 is bright, and T2 leads to, and electric current flows through R2, produces voltage, make Q2 conducting at Q2 grid.Form the path of D → D1 → motor M → Q2 → C.Motor M is reversed, until LED2 is blocked, T2 ends by, Q2, motor M stall.
The situation that can feed back in time residing for described valve is monitored to spacing optocoupler component states and described valve actuator state, be beneficial to control, for this example, after control circuit 8 receives the instruction of closing valve, motor 1 reverses, pass through gear drive, drive leading screw 2 straight line to decline, valve gap 3 moves down, and gear block 9 moves down, when gear block 9 moves on between the luminotron tube of lower limit optocoupler assembly 13 and transistor, shutoff signal, motor 1 stall, valve gap 3 press seal circle 4, valve port is closed, and Link Feedback is for closing.
Described accompanying drawing 6-Fig. 7 shows 3 dimensional drawing, the partial elevation view that valve gap 3 vertical-lift arrives specified position.After control circuit 8 receives the instruction of Open valve, motor 1 rotates forward, and passes through gear transmission, leading screw 2 straight line is driven to rise, valve gap 3 moves, gear block 9 moves, when gear block 9 moves on between the luminotron tube of upper limit optocoupler assembly 7 and transistor, shutoff signal, motor 1 stall, valve gap 3 hit the ceiling, valve port is opened to maximum, be now predetermined air displacement maximum case, Link Feedback is for opening.
Valve body 14 and pedestal 6 support by column 5, and column 5 height will be directly proportional with valve gap 3 lifting height, and valve gap 3 stroke is larger, and column 5 height is higher; Upper limit optocoupler assembly 7 adopts infrared light sensor, and the position of upper limit optocoupler assembly 7 is adjustable, by the height regulating the Altitude control valve gap 3 of infrared light sensor to rise.
In sum, in venting gas appliance of the present utility model, opening/closing mechanism portion is by gear drive, and screw-nut body, vertically promotes valve gap 3, spacing by infrared light sensor, and valve gap 3 reaches predetermined altitude, and the gas inside aerostatics flows out; During closedown, control circuit 8 controls the effect in the other direction of opening/closing mechanism portion, and valve gap 3 vertically declines, spacing by infrared light sensor, and valve gap 3 compression seal circle 4, opening/closing mechanism portion is in sealing state.
Below by way of example the utility model is illustrated, but, be not limited to the utility model.Be understood that; under this principle and spirit; can also make a variety of changes example, change and combine, covered in right of the present utility model as long as these change and change and combine, protection domain of the present utility model all should be belonged to.
Claims (8)
1. an aerostatics photoelectric control valve, is characterized in that comprising: valve gap, seal ring, multiple column, pedestal, control circuit, valve body, opening/closing mechanism portion and position-limit mechanism portion; Wherein: valve body cylindrical is laid with a circle screw hole, rely on these screw holes to be connected with aerostatics air bag, make valve body be in the layout of on the utricule of aerostatics; Multiple column to lay respectively between pedestal and valve body and both is linked into an integrated entity, multiple upright supports pedestal and valve body; Valve body has valve port, the gas inside aerostatics air bag is discharged; Valve port cylindrical is sheathed in the endoporus of seal ring, and valve gap is covered on the valve port of seal ring and valve body, and when valve gap is closed, valve gap, seal ring and valve port three are in sealing state; The leading screw in opening/closing mechanism portion is that the screw hole that the lower end surface flange arrangement by leading screw is laid is fixedly connected with valve gap, and the leading screw in opening/closing mechanism portion leaves for opening and closing valve gap and covers valve port; The motor in opening/closing mechanism portion is connected with control circuit, and when control circuit controls the electric machine rotation in opening/closing mechanism portion, the motor control valve cover rim vertical direction in opening/closing mechanism portion promotes and moves down; The upper-end surface of the leading screw in opening/closing mechanism portion has a tapped hole, the gear block in position-limit mechanism portion is fixedly connected with leading screw by tapped hole, during the electric machine rotation in opening/closing mechanism portion, the gear block in position-limit mechanism portion is with the leading screw vertical up-or-down movement in opening/closing mechanism portion, block the infrared light that the upper limit optocoupler assembly in position-limit mechanism portion and lower limit optocoupler assembly send, cutting-off controlling circuit, thus the motor stalling making opening/closing mechanism portion.
2. aerostatics photoelectric control valve according to claim 1, it is characterized in that, opening/closing mechanism portion comprises: motor, leading screw, base, follower, driving wheel, bearing and sleeve, wherein: motor is fixedly connected with base; Driving wheel is fixed on the output shaft of motor, and the gear teeth of follower and driving wheel engage each other, and forms gear drive; Follower is cylindrical-shaped structure, and center has internal thread through hole, and the outside thread of follower and leading screw engages each other, and forms screw nut driven mechanism; Leading screw is fixedly connected with valve gap, is vertically promoted by valve gap and moves down; The perforate interference fit of the exterior edge face of bearing and the lower end surface of sleeve, sleeve is fixed on base, the endoporus of bearing and the optical axis interference fit on follower top, follower lower end optical axis and the bearing interference fit be arranged on pedestal, there is bearings at the upper and lower two ends of such follower, and follower just can only rotate; Sleeve inner hollow, the lower end of sleeve is fixed by screw hole and base, the perforate of sleeve lower end surface and bearing interference fit, and sleeve is used for rigid bearing; Leading screw moves freely inside sleeve inner hole, and sleeve, for the protection of leading screw, limits teeter when leading screw moves up and down.
3. aerostatics photoelectric control valve according to claim 2, it is characterized in that, described position-limit mechanism portion comprises upper limit optocoupler assembly, gear block, support, lower limit optocoupler assembly, wherein: upper limit optocoupler assembly and lower limit optocoupler assembly are respectively containing infraluminescence pipe and infrared crystal pipe; Upper limit optocoupler assembly and lower limit optocoupler assembly are installed on support, gear block is fixedly connected with the upper end of leading screw, gear block has three cantilever arms, go deep in U-groove bevel that support has respectively, when gear block is with guide screw movement, the teeter of U-groove bevel restriction gear block, makes leading screw and gear block move up and down by straight line; The rectangle catch of gear block moves up and down in the U-groove bevel of support, when the rectangle catch of gear block moves on to infraluminescence pipe and the infrared crystal pipe centre of upper limit optocoupler assembly, the light that the infraluminescence pipe of upper limit optocoupler assembly sends is blocked, upper optical path is in turnoff state, the non-conducting of upper limit optocoupler assembly, signal cut, motor stalling; When the rectangle catch of gear block moves on to infraluminescence pipe and the infrared crystal pipe centre of lower limit optocoupler assembly, the light that the infraluminescence pipe of lower limit optocoupler assembly sends is blocked, and lower optical path is in turnoff state, the non-conducting of lower limit optocoupler assembly, signal cut, motor stalling.
4. aerostatics photoelectric control valve according to claim 3, it is characterized in that, the control to motor is responsible for by described control circuit, after control circuit receives the instruction of outer computer Open valve, motor rotates forward, pass through gear drive, drive leading screw straight line to rise, valve gap moves, gear block moves, when gear block moves on between the infraluminescence pipe of upper limit optocoupler assembly and infrared crystal pipe, shutoff signal, motor stalling, valve gap hit the ceiling, be now air displacement maximum position, Link Feedback is for opening; After control circuit receives the throttle down instruction of outer computer, motor reversal, by gear drive, drives leading screw straight line to decline, valve gap moves down, gear block moves down, when gear block moves on between the luminotron tube of lower limit optocoupler assembly and transistor, and shutoff signal, motor stalling, valve gap press seal circle, valve port is closed, and Link Feedback is for closing.
5. aerostatics photoelectric control valve according to claim 2, it is characterized in that, the driving force of described motor in order to overcome valve gap promote suffered by gas pressure and self gravitation, during motor stalling, the self-lock force support valve closure utilizing threads of lead screw to connect is in holding position.
6. aerostatics photoelectric control valve according to claim 3, is characterized in that, when gear block moves on between the infraluminescence pipe of lower limit optocoupler assembly and infrared crystal pipe, valve gap can press seal circle, makes the valve port of valve body be in sealing state when closing.
7. aerostatics photoelectric control valve according to claim 3, is characterized in that, described upper limit optocoupler assembly, for the stroke height that limiting valve cap rises; The stroke height of described rising carrys out by the distance between adjustment upper limit optocoupler assembly and lower limit optocoupler assembly the height that application valve cover rises, distance between upper limit optocoupler assembly and lower limit optocoupler assembly is larger, the stroke height that valve gap rises is higher, distance between upper limit optocoupler assembly and lower limit optocoupler assembly is less, and the stroke height that valve gap rises is lower.
8. aerostatics photoelectric control valve according to claim 3, is characterized in that, described lower limit optocoupler assembly, for the stroke height that limiting valve cap declines; The stroke height of described decline carrys out by the distance between adjustment upper limit optocoupler assembly and lower limit optocoupler assembly the height that application valve cover declines, distance between upper limit optocoupler assembly and lower limit optocoupler assembly is larger, the stroke height that valve gap declines is higher, distance between upper limit optocoupler assembly and lower limit optocoupler assembly is less, the stroke height that valve gap declines is lower, but be in normally off for making aerostatics photoelectric control valve, when gear block blocks lower limit optocoupler assembly, valve gap answers press seal circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420397745.1U CN204114290U (en) | 2014-07-18 | 2014-07-18 | A kind of aerostatics photoelectric control valve |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420397745.1U CN204114290U (en) | 2014-07-18 | 2014-07-18 | A kind of aerostatics photoelectric control valve |
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| CN204114290U true CN204114290U (en) | 2015-01-21 |
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| CN201420397745.1U Withdrawn - After Issue CN204114290U (en) | 2014-07-18 | 2014-07-18 | A kind of aerostatics photoelectric control valve |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132176A (en) * | 2014-07-18 | 2014-11-05 | 中国科学院光电研究院 | Photoelectric control valve of aerostat |
| CN105129067A (en) * | 2015-07-16 | 2015-12-09 | 中国科学院光电研究院 | Current limiting closed exhaust valve used for aerostat and control method used for limiting same |
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2014
- 2014-07-18 CN CN201420397745.1U patent/CN204114290U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132176A (en) * | 2014-07-18 | 2014-11-05 | 中国科学院光电研究院 | Photoelectric control valve of aerostat |
| CN104132176B (en) * | 2014-07-18 | 2016-05-04 | 中国科学院光电研究院 | A kind of aerostatics photo-electric control valve |
| CN105129067A (en) * | 2015-07-16 | 2015-12-09 | 中国科学院光电研究院 | Current limiting closed exhaust valve used for aerostat and control method used for limiting same |
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Granted publication date: 20150121 Effective date of abandoning: 20160504 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20150121 Effective date of abandoning: 20160504 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |