CN105909804A - Electric valve and method for assembling the same - Google Patents
Electric valve and method for assembling the same Download PDFInfo
- Publication number
- CN105909804A CN105909804A CN201610099188.9A CN201610099188A CN105909804A CN 105909804 A CN105909804 A CN 105909804A CN 201610099188 A CN201610099188 A CN 201610099188A CN 105909804 A CN105909804 A CN 105909804A
- Authority
- CN
- China
- Prior art keywords
- valve
- described valve
- valve body
- shaft
- valve shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/02—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/48—Attaching valve members to screw-spindles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The present invention provides an electric valve and a method for assembling the same. According to the change rate of a load torque, a reference position for assembling a control origin can be accurately detected and found out and the control accuracy of the flow and the like can be improved. An electric valve (1) is formed as follows: a valve body (25) is pressed onto a valve seat (11a) to be in a valve pressing and closing state under the application force of a valve force application spring (24); a valve shaft (21) is rotated in a single direction while being lowered down by means of a lifting drive mechanism, so that the valve shaft (21) is further lowered to be at the control origin defined by a blocking mechanism in the valve closing direction through pressing against the application force of the valve force application spring (24) after the valve body (25) is located onto the valve seat (11a); an assembly blocking mechanism composed of a fixed barrier (29) and a movable barrier (27) is arranged between the valve body (25) and the valve shaft (21); the assembly blocking mechanism is used for detecting the assembly reference position of the valve shaft (21) that is lowered at a predetermined amount relative to the position of the control origin during the assembling process of the electric valve.
Description
Technical field
The present invention relates to a kind of electrodynamic valve assembling and using among heat-pump-type cooling and warming room system etc., special
Do not relate to the use of the rotating through screwfeed of rotor and make valve body close with valve seat or separate type
Electrodynamic valve and assemble method thereof.
Background technology
As this kind of electrodynamic valve, herein below is generally well known: though valve body be seated at valve seat it
After, till valve body force application spring is compressed to scheduled volume, make valve body continuous decrease (Continued depression),
And produce by pressure, valve body is pressed into valve seat with predetermined pressing closed valve state (referring for example to
Patent documentation 1,2).
The existing example of this kind of electrodynamic valve as shown in figure 12, below carries out simple illustration (because of its base
This composition is much the same with embodiment of the present invention described later, and detailed content refer to aftermentioned).
The electrodynamic valve 1 ' of illustrated example is formed in the following manner: possess: valve body 25；Valve shaft 21, this valve
Axle 21 can relative movement and keep this valve body 25 in relative rotation in axial direction, and there is outer spiral shell
Stricture of vagina portion 21e；The valve body force application spring 24 that compression is assemblied between valve body 25 and valve shaft 21；It is provided with
The valve body 10 of fairlead 15 and valve seat 11a, this fairlead 15 has and the external screw thread of valve shaft 21
The internal thread part 15i of portion's 21e screw engagement, valve body 25 is close with valve seat 11a or separates；Lifting is driven
Motivation structure, this lift drive mechanism has for fairlead 15 for making valve shaft 21 rotate one
The rotor 30 of limit lifting and stator 50；And the valve closing of the control origin position of regulation valve shaft 21
Direction blocking mechanism (constant resistance 55, movable barrier 35), for producing by valve body force application spring
Valve body 25 is pressed into the pressing closed valve state of valve seat 11a by the applying power of 24, by described lifting
Drive mechanism makes valve shaft 21 rotate while declining and making valve body 25 be seated at valve seat to one direction
After 11a, valve shaft 21 is further made to resist the applying power of valve body force application spring 24 and drop to
By the control origin position of valve closing direction blocking mechanism defined, in other words, dropping to can
Dynamic stop 35 abuts the described control of locking with the constant resistance 55 constituting valve closing direction blocking mechanism
Use origin position.
The action of electrodynamic valve 1 ' is specifically described below.
I.e., the pulse passing through to become valve closing direction drive pattern to stator 50 supply (is just sometimes referred to as
Turn pulse), rotor 30 and valve shaft 21 are rotated to one direction (when such as overlooking clockwise),
By the screwfeed mechanism being made up of internal thread part 15i and external thread part 21e, valve shaft 21 and closing
Valve direction rotates with movable barrier 35 while declining, and valve body 25 is seated at valve seat 11a, valve port
It is closed.
At this time point, movable barrier 35 does not abuts with constant resistance 55, rotor 30 and valve shaft 21
Rotation decline and do not stop, the supply of pulse is continued until that valve body force application spring 24 is compressed to
Till scheduled volume, with this, valve body 25 is still seated at valve base part 11, rotor 30, valve shaft 21
Tool 23 grades are kept further to rotate while declining with valve.
At this moment, tool 23 is kept to decline relative to valve body 25, so valve body is executed due to valve shaft 21 and valve
Power spring 24 is compressed, and with this, valve shaft 21 and valve keep the decline strength of tool 23 to be absorbed, it
After, when the decrement of valve body force application spring 24 becomes scheduled volume, movable barrier 35 and fixing resistance
Gear 55 abutting locking, rotor 30 and valve shaft 21 arrive down position, even if continuing to stator 50
Supply becomes the pulse of valve closing direction drive pattern, and the decline of rotor 30 and valve shaft 21 is also by by force
Stop is only.The position of valve shaft 21 now is referred to as control origin position, from described seated position to
The slippage La umber of pulse of described origin position is scaled Po and (such as 32 pulses, sometimes will
It is referred to as valve opening and sets umber of pulse Po).It addition, among the electrodynamic valve 1 ' of this example, electronic by stepping
Rotational angle that the supply of 1 pulse of machine brings, the spacing etc. of the external thread part 21e of valve shaft 21
Know the most in advance, so the slippage of valve shaft 21 and ascending amount, become valve closing direction by counting and use
The rotating forward umber of pulse of drive pattern, the inversion pulse number becoming valve opening position drive pattern can enter
Row sets.
Like this, even if after valve body 25 is seated at valve seat 11a, valve port is closed, arrive
Till movable barrier 35 abuts the control origin position of locking with constant resistance 55, pass through rotor
30, valve shaft 21 and valve keep the continuous decrease of tool 23, and valve body force application spring 24 is compressed, so
Valve body 25 is pressed into valve seat 11a (this state is referred to as pressing closed valve state) at full tilt, it is possible to reliably
Prevent valve from leaking.
On the other hand, if supplying to stator 50 from above-mentioned control origin position (pressing closed valve state)
Become the pulse (being sometimes referred to as inversion pulse) of valve opening position drive pattern, rotor 30 and valve shaft 21
Then rotate, by by internal thread part to direction (counter-clockwise direction when such as overlooking) contrary to the above
The screwfeed mechanism that 15i and external thread part 21e is constituted, rotor 30, valve shaft 21, valve keep tool
23 and valve opening position movable barrier 36 rise while rotating, companion is as it does so, to valve body 25
Dying down by pressure, valve body force application spring 24 is upheld scheduled volume and is returned to original setting state, valve body
25 separate with valve seat 11a, and valve port is opened.Now, as shown in Figure 8, according to supply stator 50
Umber of pulse determine valve body 25 lift (valve opening=flow), further arteries and veins described in sustainable supply
Punching, eventually becomes full-gear, and movable barrier 36 supports with valve opening position constant resistance 56
Connecing locking, thus, rotor 30, valve shaft 21 and valve keep the rotation of tool 23 and rising to be forced to stop
Only.
Among electrodynamic valve 1 ' as described above, it is desirable to have: when assembling, find out control exactly
With origin position, at this origin position by the fixing resistance of movable barrier 35 with valve closing direction blocking mechanism
Gear 55 reliably abuts locking.
So, when the assembling of said electric valve 1 ', such as, can use following steps.
It addition, the most as shown in figure 13, the group comprising assembling motor 210 is prepared in advance
Dress with motor unit 200, this assembling motor 210 and be used for making valve shaft 21 rotation one
Limit lifts, the stepping motor with rotor 30 and stator 50 of described electrodynamic valve 1 ' is same
Specification.In this unit 200, hardware itself possess well-known in be provided with the controller of microcomputer
100 and guidance panel 120 etc., assembling with the output shaft 220 of motor 210 by rotating driver
Structure 240 is connected with valve shaft 21, it addition, be provided with torque sensor 150 at output shaft 220, and this torsion
Square sensor 150 is applied to the load torque of valve shaft 21 for detection.From torque sensor 150 to
Controller 100 supplies the signal of the load torque according to valve shaft 21.
When assembling, as shown in figure 13, first, be directed to overlap 15, valve base part 11 is assembled into
Valve body 10, keeps tool 23 to be assembled into valve shaft 21, and assembling valve body force bullet in-between by valve
Under the state of spring 24, valve body 25 is assembled and obtain valve shaft assembly 20.Make valve shaft assembly 20
Valve shaft 21 (external thread part 21e) and fairlead 15 (internal thread part 15i) screw engagement.
It follows that the guidance panel 120 of assembling motor unit 200 is operated, to control
Device 100 processed transmits commencing signal.Then, controller 100 performs the place as shown in Fig. 6 A flow chart
Reason.It is, after Kai Shiing, to assembling motor 210 in step S71 (step omitted below)
Supply rotates forward pulse, and calculates load according to the signal from torque sensor 150 in S72
The rate of change Δ T of moment of torsion, it follows that judge that in S73 the rate of change Δ T of load torque is the biggest
In the threshold values α of regulation in advance, in this step S73, it is being judged as that rate of change Δ T is below threshold values α
Time (situation of No), exceeding threshold values α to rate of change Δ T, repeated execution of steps S71, S72,
S73。
Herein process represent Fig. 5 A from supply umber of pulse be the point of 0 to taking a seat a little, due to
The friction opposing etc. of valve shaft assembly 20, load torque rises lentamente, but its rate of change Δ T
Usually described below threshold values α.Described threshold values α is set as: even if being seated at valve seat at valve seat 25
After 11a, when valve shaft 21 further declines and valve body force application spring 24 is compressed, it is possible to super
The value crossed.
In S73, when being judged as that rate of change Δ T exceedes threshold values α (situation of Yes), it is judged that for
Valve body 25 is seated at valve seat 11a.The state representation of this time point of taking a seat at Figure 14, this position of taking a seat
For assembling reference position.In S73, the situation of Yes, proceeds to S74, is initially supplied rule in advance
The rotating forward pulse of fixed umber of pulse Po (such as 32 pulses), and the umber of pulse of transmission is counted
(umber of pulse P+1 of current umber of pulse P ← last time).
Then, in S75, till rotating forward umber of pulse Po of umber of pulse P arrival regulation in advance,
Repeat S74, when rotating forward umber of pulse P and becoming more than umber of pulse Po, proceed to S76, stop
Only supply rotates forward pulse, this EP (end of program).By supplying described umber of pulse Po (such as 32 pulses),
Valve shaft 21 as described above is as shown in Fig. 5 A and Figure 15, from (assembling benchmark position, a position of taking a seat
Put) drop to control origin position (slippage Lo).Now, as shown in (1), (2) of Fig. 7 A,
Shown in Figure 14 take a seat a some position time, a length of W1 of valve body force application spring 24, but such as figure
Shown in 15, if valve shaft 21 declines Lo part, valve body force application spring 24 is then compressed described Lo portion
Its length is divided to become W2.
At above such, valve shaft 21 in control origin position state, as shown in figure 12, become
For valve closing direction movable barrier 35 being screwed into valve shaft 21 and supporting with valve closing direction constant resistance 55
The state connect, and in the above to cover rotor 30 form mounting, by welding by rotor 30
Connector 32 and the minor diameter part 21b of valve shaft 21 fix.With this, at rotor 30 and movable barrier
35 rotate integratedly while declining and when valve shaft 21 arrives control origin position, movably
Stop that 35 abut locking with constant resistance 55.
If it follows that pass through to weld the bottom of tank 45 and valve body 10 sealing engagement, and
Stator 50 location is fixed on the periphery of tank 45, then completes the assembling of electrodynamic valve 1 '.
Patent documentation 1: Japanese Unexamined Patent Publication 2012-172839 publication
Patent documentation 2: Japanese Unexamined Patent Publication 2007-198372 publication
Summary of the invention
Among electrodynamic valve 1 ' as above, existing assembles, by by the change of load torque
Rate Δ T compares with threshold values α, carries out whether valve body 25 is seated at the judgement of valve seat 11a, but
Even if being that valve body 25 is taken a seat, due to valve shaft 21 by under press, so load torque changes lentamente,
In a position of taking a seat of rate of change Δ T ＞ threshold values α, the assembling i.e., when finding out control initial point is used
Reference position easily produces big error, so, even if giving the pulse of electrodynamic valve 1 ' predetermined number,
Desired pressing closed valve state can not be become, exist and can not obtain desired lift (=flow)
The worry that problem occurs.
The present invention completes in view of the above problems, its object is to provide a kind of electrodynamic valve and group thereof
Dress method, according to the rate of change of load torque, it is possible to assembling base when will find out control initial point
Level is put and is detected exactly, can improve the control accuracy of flow etc. as much as possible with this.
For arriving above-mentioned purpose, electrodynamic valve involved in the present invention, it is characterised in that possess: valve
Body；Valve shaft, this valve shaft in axial direction can relative movement and keep this valve body in relative rotation,
And there is external thread part；The valve body force bullet that compression is assemblied between described valve body and described valve shaft
Spring；Being provided with the valve body of fairlead and valve seat, this fairlead has and the external thread part of described valve shaft
The internal thread part of screw engagement, described valve body is close with this valve seat or separates；Lift drive mechanism,
This lift drive mechanism has for described fairlead for making described valve shaft rotate while lifting
Rotor and stator；And valve closing direction blocking mechanism, this valve closing direction blocking mechanism regulation is described
The control origin position of valve shaft, this electrodynamic valve is formed as follows: executed by described valve body for producing
Described valve body is pressed into the pressing closed valve state of described valve seat by the applying power of power spring, passing through
Stating lift drive mechanism makes described valve shaft rotate to one direction while declining and making described valve body fall
Seat, after described valve seat, further makes described valve shaft resist executing of described valve body force application spring
It is afterburning and drop to by the described control origin position of described valve closing direction blocking mechanism defined,
The assembling blocking mechanism being made up of constant resistance and movable barrier is located at described valve body and described valve shaft
Between, this assembling blocking mechanism is that detection makes described valve for when the assembling of described electrodynamic valve
Axle the most only declines the assembling reference position of scheduled volume than described control origin position.
In a preferred embodiment, intercalation sliding freely is at the circle of described fairlead
The valve in cylinder portion keeps tool to be located at the bottom of described valve shaft, and described valve body in axial direction can phase
To mobile and in relative rotation in be inserted in this valve and keep tool and kept the bottom slip-off preventing of tool by described valve
Locking, the compression of described valve body force application spring is assemblied in described valve body and the top, sky of described valve holding tool
Between, and the part keeping the downward side, bottom of tool prominent at valve described in the ratio of described valve body is provided with
Flange, described assembling blocking mechanism using by described valve keep tool bottom as movable barrier,
The flange of described valve body is constituted as constant resistance.
In other preferred embodiments, intercalation sliding freely is at the circle of described fairlead
The valve in cylinder portion keeps tool to be located at the top of described valve body, and described valve shaft in axial direction can phase
To mobile and in relative rotation in be inserted in this valve and keep tool and kept the top, sky of tool to prevent by described valve
Come off locking, and the compression of described valve body force application spring is assemblied in described valve body and outer is fixed on described valve
Between the spring bearing part of axle, and described valve shaft be positioned at than described valve keep tool zenith
Portion is provided with flange to the part of upside, and described assembling blocking mechanism is to keep tool by described valve
Top, sky as constant resistance, the flange of described valve shaft is constituted as movable barrier.
In other preferred embodiments, intercalation sliding freely is at the circle of described fairlead
The valve in cylinder portion keeps tool to be located at the bottom of described valve shaft, and described valve body in axial direction can phase
To mobile and in relative rotation in be inserted in this valve and keep tool and kept the bottom slip-off preventing of tool by described valve
Locking, the compression of described valve body force application spring is assemblied in the spring bearing part being located at described valve body top
With described valve keeps between the top, sky of tool, described assembling blocking mechanism is to keep tool by described valve
Top, sky as movable barrier, described spring bearing part is constituted as constant resistance.
In other preferred embodiments, intercalation sliding freely is at the circle of described fairlead
The valve in cylinder portion keeps tool to be located at the top of described valve body, and described valve shaft in axial direction can phase
To mobile and in relative rotation in be inserted in this valve and keep tool and kept top, the sky anticreep of tool by described valve
Fall locking, and the compression of described valve body force application spring is assemblied in be located at the lower lateral spring on described valve body top and hold
By between parts and the upper lateral spring bearing part being located at described valve shaft bottom, described assembling stops
Mechanism using by described lower lateral spring bearing part as constant resistance, by described upper lateral spring receiving portion
Part is constituted as movable barrier.
In preferred embodiment, drop to described assembling reference position with described valve shaft
Time the decrement of described valve body force application spring, drop to described control initial point position than described valve shaft
Decrement when putting is big, and less than the decrement of described valve body force application spring generation plastic deformation
Form, sets the size shape of each several part.
In other preferred embodiments, drop to described assembling benchmark with described valve shaft
The decrement of described valve body force application spring during position, becomes described valve shaft and drops to described control use
The form of the integral multiple of decrement during origin position, sets the size shape of each several part.
On the other hand, the assemble method of electrodynamic valve involved in the present invention, is the electronic of above-mentioned composition
The assemble method of valve, it is characterised in that described fairlead is assembled into described valve body, and will
It is assembled into described valve shaft under the state that described valve body installs described valve body force application spring in-between and obtains
To valve shaft assembly, make the valve shaft of this valve shaft assembly and described fairlead screw engagement, pass through thing
The state that the assembling motor first prepared leaves described valve seat from described valve body makes described valve shaft to list
Direction rotates while declining, and calculates the rate of change of load torque now, bears at this
When the rate of change of lotus moment of torsion is more than the threshold values of in advance regulation, stop the decline of described valve shaft, then,
While only rotating the movable barrier from described assembling blocking mechanism to abut to fixing resistance to other directions
The described valve body deducted in described valve shaft among the slippage as design load of gear is landed in described valve
The amount obtained as the slippage of design load of described control origin position is played in the position of seat,
While rising and stopping, in this halted state, described rotor and described valve closing direction being stopped
Movable barrier assembles when abutting with valve closing direction constant resistance and is fixed on described valve shaft.
Among electrodynamic valve involved in the present invention, it is provided with by constant resistance between valve body and valve shaft
The assembling blocking mechanism constituted with movable barrier, when assembling, makes valve shaft decline and makes movably to hinder
Gear abuts with constant resistance, makes load torque that big change to occur, and detects this load torque and big change occurs
The flex point changed as assembling reference position, so, with existing such, load is turned round
Square change a little neighbouring situation as assembling reference position of taking a seat the most greatly are compared, it is possible to
Finding out control initial point more accurately, it is as a result, it is possible to the control improving flow etc. as much as possible is accurate
Exactness.
Accompanying drawing explanation
Figure 1A represents the profilograph of the first embodiment of electrodynamic valve involved in the present invention.
Figure 1B is the A direction view of Figure 1A.
Fig. 2 is the assemble method for electrodynamic valve shown in Figure 1A is described, expression initial setting state
Profilograph.
Fig. 3 is the assemble method for electrodynamic valve shown in Figure 1A is described, expression assembling benchmark position
The profilograph put.
Fig. 4 is the assemble method for electrodynamic valve shown in Figure 1A is described, expression control initial point position
The profilograph put.
Fig. 5 A is the assemble method for existing electrodynamic valve is described, load torque and screwfeed amount
Graph of a relation.
Fig. 5 B is the assemble method for electrodynamic valve of the present invention is described, load torque and screwfeed
The graph of a relation of amount.
Fig. 6 A is that the assemble method for existing electrodynamic valve is described, expression find out control use when assembling
The flow chart of initial point program one example.
Fig. 6 B is to find out control when the assemble method for electrodynamic valve of the present invention is described, expression assembling
Flow chart by initial point program one example.
Fig. 7 A is for existing, the figure of valve body force application spring decrement is described.
Fig. 7 B is for illustrating the present invention, the figure of valve body force application spring decrement.
Fig. 8 represents flow and the figure of supply umber of pulse relation of electrodynamic valve.
Fig. 9 represents the profilograph of the second embodiment of electrodynamic valve involved in the present invention.
Figure 10 represents the profilograph of the 3rd embodiment of electrodynamic valve involved in the present invention.
Figure 11 represents the profilograph of the 4th embodiment of electrodynamic valve involved in the present invention.
Figure 12 represents the profilograph of existing electrodynamic valve one example.
Figure 13 is the assemble method for electrodynamic valve shown in Figure 12 is described, expression initial setting shape
The profilograph of state.
Figure 14 is the assemble method for electrodynamic valve shown in Figure 12 is described, expression seated position (group
Dress reference position) profilograph.
Figure 15 is the assemble method for electrodynamic valve shown in Figure 12 is described, expression control initial point
The profilograph of position.
Label declaration
1: electrodynamic valve；10: valve body；11a: valve seat (valve port)；15: fairlead；15i: interior spiral shell
Stricture of vagina portion；20: valve shaft assembly；21: valve shaft；21e: external thread part；23: valve keeps tool；24:
Valve body force application spring；25: valve body；26: spring bearing part；27: base plate (assembles with movable
Stop)；29: flange (assembling constant resistance)；30: rotor；35: valve closing direction is used can
Dynamic stop；36: valve opening position movable barrier；50: stator；55: valve closing direction hinders with fixing
Gear；56: open direction constant resistance.
Detailed description of the invention
Hereinafter, referring to the drawings the detailed description of the invention of the present invention is illustrated.
(the first embodiment)
Figure 1A represents the profilograph of the first embodiment of electrodynamic valve involved in the present invention, figure
1B is the A direction view (above figure of rotor) of Figure 1A, and Fig. 2 to Fig. 4 is for Figure 1A institute is described
Show the figure of the assemble method (finding out control initial point) of electrodynamic valve.
Diagram electrodynamic valve 1 possesses: upper opening of, the valve body 10 of bottomed cylindrical；Its lower end
Portion is by the tank 45 of welding etc. with the upper end face outer circumferential side sealing engagement of this valve body 10；Subsidiary convex
The fairlead 15 of edge shape plectane 18, this flange shape plectane 18 is fixed on valve body 10 by welding etc.
Face inner circumferential side, upper end；Valve shaft 21, is formed at the outer spiral shell of the 21a periphery, shaft-like portion of this valve shaft 21
The internal thread part 15i screw engagement of stricture of vagina portion 21e and the path top 15b being formed at this fairlead 15；
Fixing rotor 30 can be connected to unitary rotation with this valve shaft 21；And drive this rotor for rotating
30 and stator 50 fitted in described tank 45 periphery.
Here, stepping motor is made up of rotor 30 and stator 50, it addition, screwfeed machine
Structure is made up of the internal thread part 15i of fairlead 15 and the external thread part 21e of valve shaft 21, is used for making valve
Axle 21 rotates while the lift drive mechanism lifted is by described stepping motor and screwfeed machine
Structure is constituted.
Described valve body 10 is to be made, bottom it as the punch process of material by sheet metal
10b is fixed with the valve base part 11 with valve seat (valve port) 11a by soldering etc., inserts at an upper portion thereof
There is the bottom of fairlead 15.
In the side of the valve chamber 12 of described valve body 10, connected by soldering etc. and have by pipe joint structure
The first gateway 6 become, it addition, at valve base part 11, connect by soldering etc. and have by pipe joint
The second gateway 7 constituted.
Described valve shaft 21 has: minor diameter part 21b, and this minor diameter part 21b is outer described rotor 30
Connector 32；External thread part 21e, this external thread part 21e and the internal thread part 15i of fairlead 15
Screw engagement；And lower connecting part 21c, this lower connecting part 21c are accompanied with than this external thread part
Flange 21d of 21e lower side and banding portion 21f, in the bottom of this valve shaft 21, bind round at it
Tight portion 21f is fixedly connected with Qi Ding cave part, at the big footpath cylindrical shape trunk 15a of fairlead 15
The cylindric valve maintaining comfortable ground intercalation of sliding keeps tool 23, and this valve keeps tool 23 to be accompanied with sky
Top 23b, keeps the cylindrical portion 23a bottom of tool 23, slides and be inserted with valve body comfortablely at this valve
The top of 25.
Valve body 25 has: valve body 25a of inverted cone mesa-shaped, and the bottom of this valve body 25a is inserted
And be landed in valve seat (valve port) 11a with inverted cone face；Connect with the top of this valve body 25a
The cylindric trunk 25b connect；And thicker slip-off preventing sleeve pipe 25c, this slip-off preventing sleeve pipe 25c
By outer tops being fixed on this cylindric trunk 25b such as press-in, welding, add,
The position that described cylindric trunk 25b bottom is predetermined, is provided with flange 29.Here, insert
Enter the external diameter of the described cylindric trunk 25b (top) of the through hole to base plate 27, than institute
The diameter stating valve seat (valve port) 11a is big, and this base plate 27 is fixed on described valve and keeps the lower end of tool 23
Portion.
Keep the bottom of tool 23 at described valve, clip relatively thin ring-type plectane 28 in-between and
Described valve body 25 (slip-off preventing sleeve pipe 25c) slip-off preventing is engaged, and is provided with through hole and by thicker
The base plate 27 that plate is constituted is held stationary by banding, welding etc..
On the other hand, on valve body 25, the spring receiving portion that section shape is medicated cap shape it is loaded with
Part 26, the flange of this spring bearing part 26 and valve keep tool 23 top, sky 23b it
Between compression be equipped with valve body force application spring 24, this valve body force application spring 24 is by pressing valve body have both slow
The compression helical spring that rushes is constituted, valve body 25 by valve body force application spring 24 often time exert a force downwards.
Here, the flange 29 being located at described valve body 25 keeps tool 23 composition to be somebody's turn to do with being located at valve
Valve keeps the base plate 27 bottom tool 23, respectively becomes for providing aftermentioned assembling (to be used for detecting group
Dress reference position) constant resistance and the movable barrier of assembling blocking mechanism are (the most detailed easily
State).
In the state (valve opening state) that valve body 25 leaves from valve seat 11a, above-mentioned valve shaft 21, valve keep
Tool 23, valve body 25 and valve body force application spring 24 rotate the most integratedly while lifting.
Now, in valve opening state (assembling A-stage) as shown in Figure 2, the slip-off preventing of valve body 25
Sleeve pipe 25c clips the docking of ring-type plectane 28 in-between and is locked on base plate 27, base plate 27
Below with described flange 29 above, in other words, the constant resistance of assembling blocking mechanism
(base plate) 27 and movable barrier (flange) 29, only leave preset distance Lp and (be assembled in the most in detail
State).
It addition, for setting rotor 30 and the control origin position of valve shaft 21, at fairlead 15
Above the 15b of path top, the valve closing direction constant resistance 55 of section rectangle projects upwards setting,
This valve closing direction constant resistance 55 have predetermined width, highly, depth, at fairlead 15
The top of big footpath cylindrical shape trunk 15a, the valve opening position of section rectangle with constant resistance 56 to
Under projecting, this valve opening position constant resistance 56 have predetermined width, highly, depth.
Upper end screw engagement at the external thread part 21e of valve shaft 21 has valve closing direction movable barrier
35, and engaged by top, the discoideus sky slip-off preventing of rotor 30.This valve closing direction movable barrier 35
Be made up of the stop part 35s of nut portions 35a and section rectangle, this nut portions 35a and external thread part
21e screw engagement and when overlooking profile be hexagon and it is while being formed as arc-shaped, this stop part
35s be downwardly projected from this nut portions 35a arrange and have predetermined width, highly, depth.
It addition, the bottom screw engagement at the external thread part 21e of valve shaft 21 has described valve opening position
With movable barrier 36, and top, the sky 23b slip-off preventing of tool 23 is kept to engage by valve, this valve opening position
Locking is abutted with described valve opening position constant resistance 56 with movable barrier 36.This valve opening position is used
Movable barrier 36 is made up of the stop part 36s of nut portions 36a and section rectangle, this nut portions 36a
With external thread part 21e screw engagement, this stop part 36s from this nut portions 36a project upwards setting and
Have predetermined width, highly, depth.
Described rotor 30 by be accompanied with day top cylindric Magnet 31 and with this day top one
The connector 32 engaged is constituted, and connector 32 is fitted in the minor diameter part 21b of valve shaft 21, and mounting
On described valve closing direction movable barrier 35, and it is weldingly fixed on described minor diameter part 21b.
Herein, as denoted in figure 1 b by the dotted line, the following side at the top, sky of described rotor 30 is provided with
Recess 33, when this recess 33 has vertical view, both ends are formed as the D cutting part of D word shape,
Being formed at the arc-shaped part beyond the D cutting part of this recess 33, described valve closing direction hinders with movable
Gear 35 nut portions 35a arc-shaped while being embedded into abutting state, described nut portions 35a
Other both sides be embedded in D cutting part with abutting state, with this, rotor 30, valve closing direction use
Movable barrier 35 and valve shaft 21 rotate integratedly while lifting.
On the other hand, in the periphery of described tank 45, it is embedded with outward by yoke 51, bobbin 52, line
The stator 50 of the composition such as circle 53 and resin die 54.(save by being located at the fixing tool in the location bottom it
Sketch map shows), this stator 50 is positioned relative to valve body 10 and is fixed on predetermined position.
It addition, at the electrodynamic valve 1 of present embodiment, control for carrying out the action (flow) of this electrodynamic valve 1
Systems etc., are provided with the controller of microcomputer in possessing.This controller is according to from various sensors or operation
The signal of panel (remote controller) etc. carries out required calculation process, supplies to the stator 50 of electrodynamic valve 1
To driving pulse, these various sensors are arranged in the system that this electrodynamic valve 1 is enrolled.
Thus, the rotor 30 of electrodynamic valve 1 rotates corresponding part according to the umber of pulse of supply.If turning
Son 30 rotates, then valve shaft 21 and its unitary rotation.Now, by described screwfeed mechanism,
Valve shaft 21 lifts with valve body 25, with this, being adjusted by flow of coolant.
Hereinafter, the action to electrodynamic valve 1 illustrates.
I.e., the pulse passing through to become valve closing direction drive pattern to stator 50 supply (is just becoming sometimes
Turn pulse), rotor 30 and valve shaft 21 rotate to one direction (when such as overlooking clockwise), logical
Cross the screwfeed mechanism being made up of internal thread part 15i and external thread part 21e, valve shaft 21 and valve closing
Direction rotates with movable barrier 35 while declining, and valve body 25 is seated at valve seat 11a, valve port quilt
Close.
At this time point, movable barrier 35 does not abuts with constant resistance 55, rotor 30 and valve shaft 21
Rotation decline and do not stop, the supply of pulse is continued until that valve body force application spring 24 is compressed to
Till scheduled volume, with this, still it is seated at valve base part 11, rotor 30, valve shaft at valve body 25
21 and valve keep tool 23 etc. further to rotate while declining.
At this moment, tool 23 is kept to decline relative to valve body 25, so valve body is executed due to valve shaft 21 and valve
Power spring 24 is compressed, and with this, valve shaft 21 and valve keep the decline strength of tool 23 to be absorbed, it
After, when the decrement of valve body force application spring 24 becomes scheduled volume, movable barrier 35 and fixing resistance
Gear 55 abutting locking, rotor 30 and valve shaft 21 arrive down position, even if continuing to stator 50
Supply becomes the pulse of valve closing direction drive pattern, and the decline of rotor 30 and valve shaft 21 is also by by force
Stop is only.The position of valve shaft 21 now is referred to as control origin position, from described seated position to
The slippage Lo umber of pulse of described origin position is scaled Po and (such as 32 pulses, sometimes will
It is referred to as valve opening and sets umber of pulse Po).It addition, among the electrodynamic valve 1 of this example, electronic by stepping
Rotational angle that the supply of 1 pulse of machine brings, the spacing etc. of the external thread part 21e of valve shaft 21
Know the most in advance, so the slippage of valve shaft 21 and ascending amount, become valve closing direction by counting and use
The rotating forward umber of pulse of drive pattern, become valve opening position drive pattern inversion pulse number and can
Set.
Like this, even if after valve body 25 is seated at valve seat 11a and valve port is closed, arrive
Till movable barrier 35 abuts the control origin position of locking with constant resistance 55, pass through rotor
30, valve shaft 21 and valve keep the continuous decrease of tool 23, and valve body force application spring 24 is compressed, so
Valve body 25 is pressed into valve seat 11a (this state is referred to as pressing closed valve state) at full tilt, it is possible to reliably
Prevent valve from leaking.
On the other hand, if supplying to stator 50 from above-mentioned control origin position (pressing closed valve state)
Become the pulse (being sometimes referred to as inversion pulse) of valve opening position drive pattern, rotor 30 and valve shaft 21
Then rotate, by by internal thread part to direction (counter-clockwise direction when such as overlooking) contrary to the above
The screwfeed mechanism that 15i and external thread part 21e is constituted, rotor 30, valve shaft 21, valve keep tool
23 and valve opening position movable barrier 36 rise while rotating, companion is as it does so, to valve body 25
Dying down by pressure, valve body force application spring 24 is upheld scheduled volume and is returned to original setting state, valve body
25 separate with valve seat 11a, and valve port is opened.Now, as shown in Figure 8, according to supply stator 50
Umber of pulse determine valve body 25 lift (valve opening=flow), further arteries and veins described in sustainable supply
Punching, eventually becomes full-gear, and movable barrier 36 supports with valve opening position constant resistance 56
Connecing locking, thus, rotor 30, valve shaft 21 and valve keep the rotation of tool 23 and rising to be forced to stop
Only.
Among electrodynamic valve 1 as described above, it is desirable to have: when assembling, find out control exactly
With origin position, at this origin position by the fixing resistance of movable barrier 35 with valve closing direction blocking mechanism
Gear 55 reliably abuts locking.
So, when the assembling of said electric valve 1, such as, can use following steps.
It addition, in this example as in figure 2 it is shown, prepare the group comprising assembling motor 210 in advance
Dress with motor unit 200, this assembling motor 210 and be used for making valve shaft 21 rotation one
Limit lifts, the stepping motor with rotor 30 and stator 50 of described electrodynamic valve 1 is same
Specification.In this unit 200, hardware itself possess well-known in be provided with the controller of microcomputer
100 and guidance panel 120 etc., assembling with the output shaft 220 of motor 210 by rotating driver
Structure 240 is connected with valve shaft 21, it addition, be provided with torque sensor 150 at output shaft 220, and this torsion
Square sensor 150 is applied to the load torque of valve shaft 21 for detection.From torque sensor 150 to
Controller 100 supplies the signal of the load torque according to valve shaft 21.
When assembling, as in figure 2 it is shown, first, it is directed to overlap 15, valve base part 11 is assembled into valve
Main body 10, keeps tool 23 to be assembled into valve shaft 21, and assembling valve body force application spring in-between by valve
Under the state of 24, valve body 25 is assembled and obtain valve shaft assembly 20.Make the valve of valve shaft assembly 20
Axle 21 (external thread part 21e) and fairlead 15 (internal thread part 15i) screw engagement.
It follows that the guidance panel 120 of assembling motor unit 200 is operated, to control
Device 100 processed transmits commencing signal.Then, controller 100 performs the place as shown in Fig. 6 B flow chart
Reason.It is, after Kai Shiing, to assembling motor 210 in step S81 (step omitted below)
Supply rotates forward pulse, calculates load according to the signal from torque sensor 150 and turn round in S82
The rate of change Δ T of square, it follows that judge in S83 whether the rate of change Δ T of load torque is more than
The threshold values β of regulation in advance, in this step S83, when being judged as that rate of change Δ T is below threshold values β
(situation of No), exceeding threshold values β to rate of change Δ T, repeated execution of steps S81, S82,
S83。
Process expression Fig. 5 B herein from the point that supply umber of pulse is 0 to assembling reference position is
Only, this assembling reference position is the position that assembling movable barrier 27 abuts with constant resistance 29.
Herein, abut locking if assembling with constant resistance 29 with movable barrier 27, then load torque with
Vertical proximity to angle increase, the rate of change Δ T of load torque drastically becomes big, it is possible to by described
Threshold values β is set as that valve body force application spring 24 is compressed the journey that can not obtain under (elastic deformation) state
The big value of degree, thus it is possible to accurately and reliably detect assembling movable barrier 27 with fixing
Stop the assembling reference position of 29 abuttings.
In S83, when being judged as that rate of change Δ T exceedes threshold values β (situation of Yes), it is judged that for
Have arrived at the assembling reference position that assembling movable barrier 27 abuts with constant resistance 29.Should
The state of assembling reference position is as shown in Figure 3.In S83, the situation of Yes, proceeds to S84,
It is initially supplied the inversion pulse of umber of pulse Pr of regulation in advance, carries out counting (this by the umber of pulse of transmission
Secondary umber of pulse P ' umber of pulse P '+1 of ← last time).Here, inversion pulse number Pr is set as:
Slippage till assembling abuts with constant resistance 29 with movable barrier 27, as design load
Among Lp, deduct take a seat position slippage Lo to control origin position from above-mentioned and
The umber of pulse that back amount Lr (Lr=Lp-Lo) that obtains is suitable.In this example, slippage Lp, decline
Amount Lo, back amount (ascending amount) Lr are set in advance as design load, and slippage Lo is scaled pulse
Number Po (such as 32 pulses), slippage Lp is scaled 2 times of slippage Lo, i.e., umber of pulse
Umber of pulse Pp (such as 64 pulses) of 2 times of Po (such as 32 pulses), ascending amount Lr converts
Obtain for deducting umber of pulse Po (such as 32 pulses) from umber of pulse Pp (such as 64 pulses)
Umber of pulse Pr (such as 32 pulses).
Then, in S85, till inversion pulse number P ' returns and arrives umber of pulse Pr, weight
Perform S84 again, when inversion pulse number P ' becomes more than umber of pulse Pr, proceed to S86, stop
Supply inversion pulse, this EP (end of program).By supply described inversion pulse number Pr (such as 32 arteries and veins
Punching), valve shaft 21 as described above as shown in Fig. 5 B and Fig. 4, from assembling with movable barrier 27 with
The assembling reference position that constant resistance 29 abuts rises to control origin position (ascending amount Lr).
Now, as Fig. 5 B, Fig. 7 B (1), (2), (3) shown in, in the setting position in the early stage shown in Fig. 2
When putting, a length of W1 of valve body force application spring 24, but as shown in Figure 3, Figure 4, if valve shaft
21 decline b=Lp part, then valve body force application spring 24 is compressed described Lp part, and its length becomes
For W3.Afterwards, if valve shaft 21 rises Lr part, then valve body force application spring 24 then extends described
Lr part, its length becomes W2, decrement a=Lo now.It addition, by by decrement b=Lp
Integral multiple as decrement a=Lo, it is not necessary that the changes such as tool just can still be used greatly existing
Tool.Although it addition, here, using decrement b=Lp as the integral multiple of decrement a=Lo,
But decrement b=Lp is bigger than decrement a=Lo, and is able to maintain that bullet at valve body force application spring 24
Property decrement the upper limit in can freely set, the most such as decrement b=Lp is set as compression
Between 1.5 times to 3.0 times of amount a=Lo.
At as described above, valve shaft 21 in control origin position state, as it is shown in figure 1, become
Valve closing direction movable barrier 35 is screwed into valve shaft 21 and abuts with valve closing direction constant resistance 55
State, and load to cover the form of rotor 30 in the above, by welding by rotor 30
Connector 32 and the minor diameter part 21b of valve shaft 21 fix.With this, at rotor 30 and movable barrier
35 rotate integratedly while declining, and when valve shaft 21 arrives control origin position, can
Dynamic stop 35 abuts locking with constant resistance 55.
It follows that by welding etc. by the bottom of tank 45 and valve body 10 sealing engagement, and
Stator 50 location is fixed on the periphery of tank 45, then completes the assembling of electrodynamic valve 1.
As described above, among the electrodynamic valve 1 of present embodiment, at valve body 25 and valve shaft 21
Between be provided with the assembling blocking mechanism being made up of constant resistance 29 and movable barrier 27, assemble
Time, make valve shaft 21 decline, make movable barrier 27 abut with constant resistance 29, make load torque send out
Raw big change, so according to the rate of change of load torque, it is possible to accurately and securely detection makes valve shaft
21 the most only decline the assembling reference position of scheduled volume than control origin position.Now,
Because slippage Lp, slippage Lo, back amount (ascending amount) Lr are set in advance as design load,
It is possible to detect described assembling reference position exactly, and work mutually with this, its error with
Valve body 25 is taken a seat the flex point that changes with load torque during valve seat 11a by existing such, detection
Situation is compared, and becomes fairly small, it is possible to find out control initial point exactly, and its result, energy
Enough control accuracies improving flow etc. as much as possible.
(the second embodiment)
Fig. 9 represents the profilograph of the second embodiment of electrodynamic valve involved in the present invention.At figure
Among the electrodynamic valve 2 of example, equally constitute with each several part of the electrodynamic valve 1 of the first embodiment or
The part of said function pays like number, and omits repeat specification, only clicks on difference below
Row explanation.
Among the electrodynamic valve 2 of present embodiment, valve body 65 has: the valve body of inverted cone mesa-shaped
65a；Short cylindrical shape trunk 65b；And top projects portion 65c, intercalation sliding freely is being led
Valve to cylindrical portion 15a of set 15 keeps tool 60 to be fixed on the short cylindrical shape trunk 65b of valve body 65
Top, and valve shaft 21 in axial direction can relative movement and in relative rotation in be inserted in this valve
Keep tool 60, and clip ring-type plectane 66 between it and kept top, the sky 60b of tool 60 by this valve
Slip-off preventing engages.It addition, within valve keeps cylindrical portion 60a of tool 60, valve body force application spring 24
Compression is assemblied in lower lateral spring bearing part 62 He projecting portion 65c fitted in the top of valve body 65
Between the upper lateral spring bearing part 61 of the outer lower connecting part 21c being fixed on valve shaft 21, and
And keep the part having the 60b upper side, top, sky of 60 to be provided with flange in being positioned at of valve shaft 21 than valve
Shape portion 21g, described assembling blocking mechanism to keep top, the sky 60b of tool 60 as fixing by valve
Stop, flange 21g of valve shaft 21 is constituted as movable barrier.
Among the electrodynamic valve 2 so constituted, as the top, sky of the valve holding tool 60 of constant resistance
60b and be set as the spacing distance between flange 21g of the valve shaft 21 of movable barrier
Slippage Lp of one embodiment, it addition, slippage Lo of the first embodiment, back amount (on
Rising amount) Lr also set equally, when assembling, makes valve shaft 21 decline, make movable barrier 21g with
Constant resistance 60b abuts, and makes load torque that big change to occur, so according to the change of load torque
Rate, it is possible to accurately and securely detection make valve shaft 21 than control origin position further only under
The assembling reference position of fall scheduled volume.Now, because slippage Lp, slippage Lo, back amount
(ascending amount) Lr is set in advance as design load, it is possible to detect described assembling benchmark exactly
Position, and working mutually with this, valve body 65 is taken a seat and valve by its error with existing such, detection
The situation of the flex point of load torque change during seat 11a is compared, and becomes fairly small, it is possible to accurate
Really finding out control initial point, it is as a result, it is possible to improve the control accuracy of flow etc. as much as possible.
(the 3rd embodiment)
Figure 10 represents the profilograph of the 3rd embodiment of electrodynamic valve involved in the present invention, be from
The flange 29 being located at valve body 25 is deleted among the first embodiment shown in Fig. 1, and at spring
Bearing part 26 forms constant resistance, keeps the example of tool 23 formation movable barrier at valve.At figure
Among the electrodynamic valve 3 of example, equally constitute with each several part of the electrodynamic valve 1 of the first embodiment or
The part of said function pays like number, and omits repeat specification, only clicks on difference below
Row explanation.
Among the electrodynamic valve 3 of present embodiment, it is located at the top that valve keeps top, the sky 23b of tool 23
Part around hole extends downwards than banding portion 21f, and its underpart is formed as movable barrier, if
Spring bearing part 26 on valve body 25 top extends to upside compared with the first embodiment, its
Top is formed as constant resistance, is constituted described assembling with this and stops.
Among the electrodynamic valve 3 so constituted, as the top, sky of the valve holding tool 23 of movable barrier
23b and be set as the first enforcement as the spacing distance between the spring bearing part 26 of constant resistance
Slippage Lp of mode, it addition, slippage Lo of the first embodiment, back amount (ascending amount) Lr
Also set equally, when assembling, make valve shaft 21 decline, make movable barrier 23b and constant resistance
26 abut, and make load torque that big change to occur, so as the first embodiment, according to load
The rate of change of moment of torsion, it is possible to accurately and securely detection makes valve shaft 21 more enter than control origin position
One step ground only declines the assembling reference position of scheduled volume.
(the 4th embodiment)
Figure 11 represents the profilograph of the 4th embodiment of electrodynamic valve involved in the present invention, be from
Delete among the second embodiment shown in Fig. 9 and be located at flange 21g of valve shaft 21, and with
The upper lateral spring bearing part 61 that valve shaft 21 lower end is wholely set forms movable barrier, at downside bullet
Spring bearing part 62 forms the example of constant resistance.Among the electrodynamic valve of illustrated example, real with second
The each several part of the electrodynamic valve 2 executing mode equally constitutes or the part of said function pays like number,
And omit repeat specification, only difference is illustrated below.
Among the electrodynamic valve 4 of present embodiment, by upper lateral spring bearing part 61 and valve shaft 21
Being integrally formed, extend to downside below upper lateral spring bearing part 61, its underpart is as movable resistance
Keep off and formed, be located at lower lateral spring bearing part 62 and the second embodiment phase on valve body 65 top
Extending than to upside, its top is formed as constant resistance, is constituted described assembling with this and stops.
Among the electrodynamic valve 4 so constituted, as the upper lateral spring bearing part 61 of movable barrier
And it is set as the first enforcement as the spacing distance between the lower lateral spring bearing part 62 of constant resistance
Slippage Lp of mode, it addition, slippage Lo of the first embodiment, back amount (ascending amount) Lr
Also set equally, when assembling, make valve shaft 21 decline, make movable barrier 61 and constant resistance
62 abut, and make load torque that big change to occur, so as the second embodiment, according to load
The rate of change of moment of torsion, it is possible to accurately and securely detection makes valve shaft 21 more enter than control origin position
One step ground only declines the assembling reference position of scheduled volume.
Claims (8)
1. an electrodynamic valve, it is characterised in that possess: valve body；Valve shaft, this valve shaft is at direction of principal axis
On can relative movement and keep this valve body in relative rotation, and there is external thread part；Compression dress
Fit over the valve body force application spring between described valve body and described valve shaft；It is provided with the valve of fairlead and valve seat
Main body, this fairlead has the internal thread part of the external thread part screw engagement with described valve shaft, described
Valve body is close with this valve seat or separates；Lift drive mechanism, this lift drive mechanism has for institute
State fairlead for making described valve shaft rotate while the rotor lifted and stator；And valve closing side
To blocking mechanism, this valve closing direction blocking mechanism specifies the control origin position of described valve shaft,
This electrodynamic valve is formed as follows: for producing the applying power by described valve body force application spring by institute
State valve body and be pressed into the pressing closed valve state of described valve seat, make institute by described lift drive mechanism
State valve shaft after one direction rotates while declining and making described valve body be seated at described valve seat,
Described valve shaft is further made to resist the applying power of described valve body force application spring and drop to by described
The described control origin position of valve closing direction blocking mechanism defined,
The assembling blocking mechanism being made up of constant resistance and movable barrier is located at described valve body and described
Between valve shaft, this assembling blocking mechanism is that detection makes institute for when the assembling of described electrodynamic valve
State valve shaft and the most only decline the assembling benchmark position of scheduled volume than described control origin position
Put.
Electrodynamic valve the most according to claim 1, it is characterised in that
Intercalation sliding freely keeps tool to be located at described valve shaft at the valve of the cylindrical portion of described fairlead
Bottom, and described valve body in axial direction can relative movement and in relative rotation in be inserted in this valve
Keep tool and kept the bottom slip-off preventing of tool to engage by described valve, described valve body force application spring compression dress
Fit over described valve body and described valve keeps between the top, sky having, and described in the ratio of described valve body
The part that valve keeps the downward side, bottom of tool to highlight is provided with flange, described assembling blocking mechanism
Using described valve is kept the bottom of tool as movable barrier, using the flange of described valve body as solid
Determine to stop and constitute.
Electrodynamic valve the most according to claim 1, it is characterised in that
Intercalation sliding freely keeps tool to be located at described valve body at the valve of the cylindrical portion of described fairlead
Top, and described valve shaft in axial direction can relative movement and in relative rotation in be inserted in this valve
Keeping tool and kept top, the sky slip-off preventing of tool to engage by described valve, described valve body force application spring compresses
It is assemblied between described valve body and the outer spring bearing part being fixed on described valve shaft, and in institute
Stating being positioned at of valve shaft keeps the part of the upwards side, top, sky having to be provided with flange than described valve, institute
State assembling blocking mechanism using by described valve keep tool top, sky as constant resistance, by described valve
The flange of axle is constituted as movable barrier.
Electrodynamic valve the most according to claim 1, it is characterised in that
Intercalation sliding freely keeps tool to be located at described valve shaft at the valve of the cylindrical portion of described fairlead
Bottom, and described valve body in axial direction can relative movement and in relative rotation in be inserted in this valve
Keep tool and kept the bottom slip-off preventing of tool to engage by described valve, described valve body force application spring compression dress
Fit over and be located between the spring bearing part on described valve body top and the top, sky of described valve holding tool,
Described assembling blocking mechanism using by described valve keep tool top, sky as movable barrier, by described
Spring bearing part is constituted as constant resistance.
Electrodynamic valve the most according to claim 1, it is characterised in that
Intercalation sliding freely keeps tool to be located at described valve body at the valve of the cylindrical portion of described fairlead
Top, and described valve shaft in axial direction can relative movement and in relative rotation in be inserted in this valve
Keeping tool and kept top, the sky slip-off preventing of tool to engage by described valve, described valve body force application spring compresses
It is assemblied in and is located at the lower lateral spring bearing part on described valve body top and is located at the upper of described valve shaft bottom
Between lateral spring bearing part, described assembling blocking mechanism is with by described lower lateral spring bearing part
As constant resistance, described upper lateral spring bearing part is constituted as movable barrier.
Electrodynamic valve the most according to claim 1, it is characterised in that
The pressure of described valve body force application spring during described assembling reference position is dropped to described valve shaft
Contracting amount, decrement when dropping to described control origin position than described valve shaft is big, and compares institute
State the form that the decrement of valve body force application spring generation plastic deformation is little, set the size of each several part
Shape.
Electrodynamic valve the most according to claim 6, it is characterised in that
The pressure of described valve body force application spring during described assembling reference position is dropped to described valve shaft
Contracting amount, becomes the integral multiple of decrement when described valve shaft drops to described control origin position
Form, sets the size shape of each several part.
8. an assemble method for electrodynamic valve, is the assemble method of electrodynamic valve described in claim 1,
It is characterized in that,
Described fairlead is assembled into described valve body, and described valve body is installed institute in-between
It is assembled into described valve shaft under the state stating valve body force application spring and obtains valve shaft assembly, make this valve shaft
The valve shaft of assembly and described fairlead screw engagement, by cut-and-dried assembling motor from
Described valve body leaves the state of described valve seat makes described valve shaft rotate while declining to one direction,
And calculate the rate of change of load torque now, at the rate of change of this load torque more than in advance
During the threshold values of regulation, stop the decline of described valve shaft, then, only rotate to other directions from
The movable barrier of described assembling blocking mechanism abuts to the slippage as design load of constant resistance
Among deduct the described valve body in described valve shaft and be landed in the position of described valve seat and play described control and use
The amount obtained as the slippage of design load of origin position, rises and stops, stopping at this
Only state, the movable barrier described rotor and described valve closing direction stopped is being used with valve closing direction
Assemble under the state that constant resistance abuts and be fixed on described valve shaft.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015034537A JP6563213B2 (en) | 2015-02-24 | 2015-02-24 | Motorized valve and its assembly method |
| JP2015-034537 | 2015-02-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105909804A true CN105909804A (en) | 2016-08-31 |
| CN105909804B CN105909804B (en) | 2019-06-25 |
Family
ID=56744432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610099188.9A Active CN105909804B (en) | 2015-02-24 | 2016-02-23 | Motor-driven valve and its assemble method |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6563213B2 (en) |
| CN (1) | CN105909804B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108375250A (en) * | 2017-01-31 | 2018-08-07 | 株式会社鹭宫制作所 | Motor-driven valve and refrigerating circulation system |
| CN109854796A (en) * | 2017-11-30 | 2019-06-07 | 株式会社不二工机 | Motor-driven valve |
| CN110873221A (en) * | 2018-08-29 | 2020-03-10 | 盾安环境技术有限公司 | Electronic expansion valve assembling process |
| CN111173981A (en) * | 2018-01-25 | 2020-05-19 | 株式会社不二工机 | Flow control valve |
| CN111902664A (en) * | 2018-09-11 | 2020-11-06 | 穆格日本有限公司 | Electric valve actuator and method for driving electric valve actuator |
| CN113544419A (en) * | 2019-03-20 | 2021-10-22 | 株式会社斯库林集团 | Processing liquid supply device and control method of processing liquid supply device |
| CN114458773A (en) * | 2020-10-21 | 2022-05-10 | 盾安环境技术有限公司 | Electronic expansion valve |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6476158B2 (en) * | 2016-10-28 | 2019-02-27 | 株式会社不二工機 | Motorized valve assembly method |
| CN108317259B (en) | 2017-01-18 | 2020-05-05 | 浙江三花制冷集团有限公司 | Electronic expansion valve |
| JP2018115743A (en) * | 2017-01-20 | 2018-07-26 | 株式会社鷺宮製作所 | Motor-operated valve and refrigeration cycle system |
| JP6643292B2 (en) | 2017-09-28 | 2020-02-12 | 株式会社不二工機 | Electric valve |
| CN107939981B (en) * | 2017-12-21 | 2023-12-22 | 海杰亚（北京）医疗器械有限公司 | Low-temperature electric regulating valve with adjustable pretightening force and regulating method |
| JP2019128022A (en) * | 2018-01-25 | 2019-08-01 | 株式会社不二工機 | Motor-operated valve |
| JP7189676B2 (en) * | 2018-04-26 | 2022-12-14 | 川崎重工業株式会社 | Poppet type flow control valve |
| JP6945860B2 (en) * | 2018-07-23 | 2021-10-06 | 株式会社不二工機 | How to assemble the electric valve and the electric valve |
| KR102484650B1 (en) * | 2018-08-17 | 2023-01-04 | 제지앙 둔안 아트피셜 인바이런먼트 컴퍼니 리미티드 | Electronic expansion valve |
| US11982477B2 (en) * | 2019-06-28 | 2024-05-14 | Zhejiang Sanhua Intelligent Controls Co., Ltd | Electronic expansion valve |
| CN210920163U (en) * | 2019-09-24 | 2020-07-03 | 浙江盾安禾田金属有限公司 | Valve core assembly and electronic expansion valve with same |
| JP7254678B2 (en) * | 2019-10-28 | 2023-04-10 | 株式会社鷺宮製作所 | Electric valve and refrigeration cycle system |
| JP7141423B2 (en) * | 2020-04-09 | 2022-09-22 | 株式会社鷺宮製作所 | Electric valve and refrigeration cycle system |
| JP7157105B2 (en) * | 2020-06-25 | 2022-10-19 | 株式会社鷺宮製作所 | Electric valve and refrigeration cycle system |
| ES2943533T3 (en) * | 2020-07-20 | 2023-06-14 | Abb Schweiz Ag | circuit breaker compartment |
| CN114183539B (en) * | 2021-11-29 | 2024-05-10 | 上海齐耀动力技术有限公司 | Magnetic force driving type vacuum drawing valve |
| JP7479714B2 (en) * | 2022-02-14 | 2024-05-09 | 株式会社不二工機 | Motor-operated valve control device, motor-operated valve device, and motor-operated valve control method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003148643A (en) * | 2001-09-03 | 2003-05-21 | Saginomiya Seisakusho Inc | Electric valve |
| JP2007198372A (en) * | 2005-12-26 | 2007-08-09 | Mikuni Corp | Control valve and its initial adjusting method |
| JP2010096203A (en) * | 2008-10-14 | 2010-04-30 | Fuji Koki Corp | Motor operated valve |
| CN101956830A (en) * | 2009-07-17 | 2011-01-26 | 浙江三花股份有限公司 | Electronic expansion valve |
| CN102650336A (en) * | 2011-02-24 | 2012-08-29 | 株式会社不二工机 | Electric valve |
| JP2014207725A (en) * | 2013-04-10 | 2014-10-30 | パナソニック株式会社 | Flow controller and operation origin correction method of stepping motor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4263426B2 (en) * | 2002-05-15 | 2009-05-13 | 株式会社鷺宮製作所 | Motorized valve |
| JP4615986B2 (en) * | 2004-12-17 | 2011-01-19 | 株式会社鷺宮製作所 | Valve device |
| JP4758916B2 (en) * | 2007-01-18 | 2011-08-31 | 株式会社不二工機 | Motorized valve |
-
2015
- 2015-02-24 JP JP2015034537A patent/JP6563213B2/en active Active
-
2016
- 2016-02-23 CN CN201610099188.9A patent/CN105909804B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003148643A (en) * | 2001-09-03 | 2003-05-21 | Saginomiya Seisakusho Inc | Electric valve |
| JP2007198372A (en) * | 2005-12-26 | 2007-08-09 | Mikuni Corp | Control valve and its initial adjusting method |
| JP2010096203A (en) * | 2008-10-14 | 2010-04-30 | Fuji Koki Corp | Motor operated valve |
| CN101956830A (en) * | 2009-07-17 | 2011-01-26 | 浙江三花股份有限公司 | Electronic expansion valve |
| CN102650336A (en) * | 2011-02-24 | 2012-08-29 | 株式会社不二工机 | Electric valve |
| JP2014207725A (en) * | 2013-04-10 | 2014-10-30 | パナソニック株式会社 | Flow controller and operation origin correction method of stepping motor |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108375250A (en) * | 2017-01-31 | 2018-08-07 | 株式会社鹭宫制作所 | Motor-driven valve and refrigerating circulation system |
| CN108375250B (en) * | 2017-01-31 | 2021-01-08 | 株式会社鹭宫制作所 | Electric valve and refrigeration cycle system |
| CN109854796A (en) * | 2017-11-30 | 2019-06-07 | 株式会社不二工机 | Motor-driven valve |
| CN111173981A (en) * | 2018-01-25 | 2020-05-19 | 株式会社不二工机 | Flow control valve |
| CN110873221A (en) * | 2018-08-29 | 2020-03-10 | 盾安环境技术有限公司 | Electronic expansion valve assembling process |
| CN111902664A (en) * | 2018-09-11 | 2020-11-06 | 穆格日本有限公司 | Electric valve actuator and method for driving electric valve actuator |
| CN111902664B (en) * | 2018-09-11 | 2023-06-09 | 穆格日本有限公司 | Electric actuator for valve opening and closing and method for driving electric actuator for valve opening and closing |
| CN113544419A (en) * | 2019-03-20 | 2021-10-22 | 株式会社斯库林集团 | Processing liquid supply device and control method of processing liquid supply device |
| CN113544419B (en) * | 2019-03-20 | 2024-01-23 | 株式会社斯库林集团 | Treatment liquid supply device and control method for treatment liquid supply device |
| CN114458773A (en) * | 2020-10-21 | 2022-05-10 | 盾安环境技术有限公司 | Electronic expansion valve |
| CN114458773B (en) * | 2020-10-21 | 2024-03-29 | 盾安环境技术有限公司 | Electronic expansion valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105909804B (en) | 2019-06-25 |
| JP6563213B2 (en) | 2019-08-21 |
| JP2016156447A (en) | 2016-09-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105909804A (en) | Electric valve and method for assembling the same | |
| CN107237913B (en) | Electric valve and assembling method thereof | |
| JP5510685B2 (en) | Motorized valve | |
| US9901974B2 (en) | Method for direct screwing of structural components, in particular for flow hole screwing and device for direct screwing of structural components | |
| EP2249030A3 (en) | Wind turbine | |
| CN103737548B (en) | Press-fitting device for annular parts | |
| US20130110335A1 (en) | Method and device for automatically controlling the gear of an electric bicycle transmission | |
| JP6762046B2 (en) | How to assemble a solenoid valve | |
| US20110027047A1 (en) | Solid rivet for joining composite component parts | |
| EP1772653A3 (en) | Continuously variable transmission and control method thereof | |
| JP2008032093A (en) | Method of assembling electric control valve | |
| EP2581285A3 (en) | Engine Start-Up Controller | |
| JP4456352B2 (en) | Motor driven proportional valve | |
| EP2082868A3 (en) | Servo-press machine | |
| US20180142764A1 (en) | Gear unit, reducer, and reducer-equipped motor | |
| CN204358197U (en) | Combustion gas safety control valve | |
| CN106199728A (en) | For detecting the method and system of the fault of the fastening bolt in CVVT | |
| CN212584316U (en) | Gas valve | |
| US8714212B2 (en) | Fuel inlet including a nozzle retention device | |
| US9605752B2 (en) | Control method for automatic transmission | |
| KR101617672B1 (en) | Method for producing a vehicle seat fitting | |
| CN106151091A (en) | Fan and wind speed control method thereof | |
| CN207588611U (en) | The mounting structure and synchronous motor of bearing and bearing block | |
| KR101898216B1 (en) | Method of waste gate control for coping with position sensor failure | |
| CN106002176A (en) | Rubber bushing automatic oil coating pressing and closed-loop pressing compensation system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |