CN106168292A - Electrodynamic valve and assemble method thereof - Google Patents
Electrodynamic valve and assemble method thereof Download PDFInfo
- Publication number
- CN106168292A CN106168292A CN201610218022.4A CN201610218022A CN106168292A CN 106168292 A CN106168292 A CN 106168292A CN 201610218022 A CN201610218022 A CN 201610218022A CN 106168292 A CN106168292 A CN 106168292A
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- CN
- China
- Prior art keywords
- valve shaft
- guide bush
- valve
- shaft support
- retainer
- 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
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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
- F16K1/04—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 with a cut-off member rigid with the spindle, e.g. main valves
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- 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
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
- F16K1/38—Valve members of conical shape
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- 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
- F16K1/482—Attaching valve members to screw-spindles with a collar on the spindle or a groove in the spindle, by which a fixing element is supported, the spindle reaching into the valve member
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The present invention provides a kind of electrodynamic valve and assemble method, this electrodynamic valve simple in construction, and can suppress the dimensional discrepancy in the gap formed between the spool on origin position and seat portion.Make bottom retainer (25) so that guide bush (20) can be screwed together in the way of rotating against and is arranged in assigned position, when making valve shaft support (30) be positioned at most by bottom stop mechanism (29) to descend shift position, spool (14) is made to abut with seat portion (46a), fixing valve shaft (10) and valve shaft support (30) is linked via compression helical spring (60), afterwards, make the bottom retainer (25) being positioned at assigned position relative to guide bush (20) to valve opening position rotate regulation the anglec of rotation and by bottom retainer (25) so that this guide bush can not be linked in the way of rotating against.
Description
Technical field
The present invention relates to be installed on the freeze cycle of air-conditioning, fridge etc. as flow control valve etc. and use electronic
Valve, particularly relates to when spool is positioned at down position (usually becoming full closing state), is formed between spool and seat portion
The electrodynamic valve of the non-valve closing type in the gap of prescribed level and assemble method thereof.
Background technology
As this electrodynamic valve, the most known a kind of structure (referring for example to patent documentation 1), it possesses: valve shaft；In having
It is inserted with the guide rod of the cylindrical portion of this valve shaft；Keep and be fixed on described valve shaft bottom and in insert in the cylindrical shape of described guide rod
Valve support；Spool, this spool is with can be relative in the relative movement in axial direction of described valve shaft and the state rotated against
Insert in this valve support, and be installed on the helical spring between spool and described valve shaft by compression and exerted a force downwards, and
Anticreep is carried out locking by described valve support；Valve body, this valve body has the seat portion contacting with this spool or separating, and peace
Dress is fixed with described guide rod；It is engaged in the housing of this valve body；It is configured at the rotor of the inner circumferential of this housing；Rotor field spider, this turn
Described rotor and described valve shaft are linked by submounts via the bonded block of the outer upper end being fixed on described valve shaft；For card
Close and be arranged at the holding section of described rotor and be formed at the recess of described rotor field spider；Configure to rotate the described rotor of driving
Stator in the periphery of described housing；It is configured at the interior threaded part of the cylindrical portion inner circumferential of described guide rod；Feed screw mechanism, should
Feed screw mechanism be formed from the fixing threaded portion of the inner circumferential of this interior threaded part with the periphery being formed at described valve shaft can
Dynamic threaded portion is constituted, and is used for making described spool contact with described seat portion or separate；And it is configured at the cylindrical portion of described guide rod
Periphery and limit the rotation of described rotor and the stop mechanism moved up and down, described stop mechanism by have upside engaging portion and
Spiral helicine fixed stop and the ring-type or spiral helicine sliding part of downside engaging portion are constituted, this ring-type or spiral helicine slip
Part be provided with the 1st abutting part being abutting and locking with described upside engaging portion and with described downside engaging portion be abutting and locking
2 abutting parts, and it is assembled in the spiral part of described fixed stop, when described rotor rotates, by being arranged at this rotor
Pushing part promote described 1st abutting part, rotation limit, described sliding part limit move up and down until described 1st abutting part with described on
Side engaging portion abuts or makes described 2nd abutting part abut with described downside engaging portion, in the 2nd abutting part and the institute of described sliding part
State the origin position that downside engaging portion abuts and is stopped, between described spool and described seat portion, be formed with the size of regulation
Gap.
In the air conditioner using the electrodynamic valve with foregoing structure, even if spool is positioned at down position and (leads to
Often become full closing state) time, between spool and seat portion, also it is formed with the gap of prescribed level, enters the most at dead of night
During row dehumidifying operating, it is possible to do not make electrodynamic valve become full closing state and operate with the state of throttling refrigeration dosage, it is possible to suppression
The generation of the operation sound produced because of the beating opening/closing of electrodynamic valve.It addition, in the electrodynamic valve with foregoing structure,
Compared with the electrodynamic valve of common valve closing type, also can be reliably prevented the advantage that spool is engaged to seat portion.
Prior art literature
Patent documentation
Patent documentation 1: No. 5164579 publications of Japanese Patent No.
But, in the electrodynamic valve of the most conventional non-valve closing type, finally, make to be fixedly linked on turning of valve shaft
Son is rotated up sliding part to valve closing direction and is set to origin position, forms described prescribed level between spool and seat portion
Gap.Therefore, the dimensional accuracy in the described gap between the spool on origin position and seat portion depends on spool, valve body
(seat portion) so has the parts precision of the structure member of complicated shape, generally has the dimensional discrepancy in described gap to become big
May.
Summary of the invention
The present invention completes in view of described problem, its object is to provide a kind of electrodynamic valve and assemble method thereof, should
Electrodynamic valve can be with the dimensional discrepancy in the gap of formation between spool and the seat portion on simple structure suppression origin position.
In order to solve above-mentioned problem, the electrodynamic valve of the present invention possesses: valve shaft, and this valve shaft is provided with spool in bottom；Lead
Lining, this guide bush has cylindrical portion, and this valve shaft is with can relative movement and the state interpolation that can rotate against in the axial direction
In this cylindrical portion；Valve body, this valve body has the seat portion contacting with described spool or separating and leads described in being mounted with
Lining；Valve shaft support, this valve shaft support has interpolation and has the cylindrical portion of described guide bush and the through top being provided with inserting hole, and
This valve shaft support and described valve shaft link fixing, and this inserting hole inserts the upper end of described valve shaft；Force application part, this force section
Part is installed between described valve shaft and described valve shaft support to exert a force described spool to valve closing direction；Motor, this motor has
For making rotor and the stator that described valve shaft support rotates relative to described guide bush；Feed screw mechanism, this feed screw mechanism
The movable threaded portion of the fixing threaded portion being formed from the periphery of described guide bush and the inner circumferential being formed at described valve shaft support is constituted,
For making the described spool of described valve shaft lift relative to described seat portion according to the rotation driving of described rotor；Under and
Portion's stop mechanism, this bottom stop mechanism is used for limiting the rotation of described valve shaft support and moving down, and by fixed stop body
Constituting with movable stop-motion body, this fixed stop body is arranged to have and screws togather described fixing threaded portion interior being installed on described guide bush
The bottom retainer of threaded portion, this movable brake body is arranged at described valve shaft support, when described spool is positioned at down position,
Forming gap between described spool and described seat portion, this electrodynamic valve is characterised by, to be obtained in that the state of taking a seat and to divide
From the mode of state, designing the size shape in each portion, this state of taking a seat is: described bottom retainer is with the side that can rotate against
Formula is screwed together in described guide bush and is arranged in assigned position, is positioned under being made described valve shaft support by described bottom stop mechanism
During shift position, described spool abuts with described seat portion；This released state is: when make to be positioned at described assigned position described under
Portion's retainer relative to described guide bush to valve opening position rotate the regulation anglec of rotation and by described bottom retainer with can not be relative
The mode rotated is when being linked to this guide bush, descends shift position making described valve shaft support be positioned at most by described bottom stop mechanism
Time, the flight pitch of described internal thread part is set to p, the described regulation anglec of rotation is set to θ, at described spool and described valve seat
The described gap that the size on lifting direction is specified is formed by p × θ/360 between portion.
Preferably, under described released state, described bottom retainer is directly joined described guide bush and links fixing.
It may further be preferable that under described released state, described bottom retainer is linked to institute via pressing component
Stating guide bush, this pressing component prevents described bottom retainer rotating against relative to described guide bush.
It may further be preferable that described pressing component is engaged in described guide bush or described valve body and is fixed.
Downward relative to described guide bush of described bottom retainer is limited it may further be preferable that be provided with at described guide bush
The retainer of movement, described assigned position is the position that described bottom retainer abuts with described retainer.
It may further be preferable that the downside or described of described bottom retainer that described retainer is arranged in described guide bush
The described fixing threaded portion of guide bush.
It may further be preferable that under described released state, described bottom retainer abuts with described retainer or separates.
The present invention provides the assemble method of electrodynamic valve, and this electrodynamic valve possesses: valve shaft, and this valve shaft is provided with valve in bottom
Core；
Guide bush, this guide bush has cylindrical portion, and this valve shaft is with can relative movement and can rotating against in the axial direction
State in insert in this cylindrical portion；Valve body, this valve body has the seat portion contacting with described spool or separating and installs solid
Surely there is described guide bush；Valve shaft support, this valve shaft support has interpolation and has the cylindrical portion of described guide bush and through be provided with inserting hole
Top, and this valve shaft support and described valve shaft link fixing, and this inserting hole inserts the upper end of described valve shaft；Force section
Part, this force application part is installed between described valve shaft and described valve shaft support to exert a force described spool to valve closing direction；Motor,
This motor has the rotor for making described valve shaft support rotate and stator relative to described guide bush；Feed screw mechanism, this spiral shell
Stricture of vagina feed mechanism is formed from the fixing threaded portion of the periphery of described guide bush and is formed at inner circumferential movable of described valve shaft support
Threaded portion is constituted, for making the described spool of described valve shaft enter relative to described seat portion according to the rotation driving of described rotor
Row lifting；And bottom stop mechanism, this bottom stop mechanism is used for limiting the rotation of described valve shaft support and moving down, and by
Fixed stop body is constituted with movable stop-motion body, and this fixed stop body is arranged at the bottom retainer with internal thread part, this interior spiral shell
Stricture of vagina portion screws togather the described fixing threaded portion being installed on described guide bush, and this movable stop-motion body is arranged at described valve shaft support, described
Spool be positioned at down position time, between described spool and described seat portion formed gap, described assemble method is characterised by,
Comprise following operation: when not linking fixing by described valve shaft with described valve shaft support, make described bottom retainer with
The mode that can rotate against is screwed together in described guide bush and is arranged in assigned position, described in being made by described bottom stop mechanism
Valve shaft support is positioned at when most descending shift position, makes described spool abut with described seat portion；Described valve shaft and described valve shaft are propped up
Frame links fixing；And make the described bottom retainer being positioned at described assigned position rotate rule relative to described guide bush to valve opening position
Determine the anglec of rotation and by described bottom retainer so that this guide bush can not be linked in the way of rotating against.
Invention effect
According to the present invention, the bottom retainer with internal thread part is made to rotate to valve opening position relative to guide bush, this interior spiral shell
Stricture of vagina portion screws togather the fixing threaded portion being installed on guide bush, afterwards, by this bottom retainer can not be linked in the way of rotating against
This guide bush, thus specify the down position of spool, in other words the spool when spool is positioned at down position and seat portion it
Between gap.That is, the dimensional accuracy in the gap between the spool on origin position and seat portion is only substantially dependent upon composition bottom
The dimensional accuracy of the internal thread part of the bottom retainer of motivation structure and the fixing threaded portion of guide bush, the most such as with by spool, valve
Main body so has the parts precision of the structure member of complicated shape to determine the conventional electronic of the dimensional accuracy in described gap
Valve is compared, it is possible to suppress the dimensional discrepancy in described gap, thereby, it is possible to make fluid (cold-producing medium) flow in low flow volume region
Controlling improves.
Accompanying drawing explanation
Fig. 1 is the longitudinal section of the 1st embodiment of the electrodynamic valve representing the present invention.
Fig. 2 is in the assembling procedure to the electrodynamic valve shown in Fig. 1, and the origin position (down position) of spool stretches out
The figure that operation illustrates, wherein, (A) is the longitudinal section representing the state of taking a seat, and (B) is that the vertical profile representing released state regards
Figure.
Fig. 3 is for stretching out in operation to the origin position shown in Fig. 2, makes the work that bottom retainer rotates relative to guide bush
Top view that sequence illustrates and partial enlargement longitudinal section.
Fig. 4 is the partial enlargement longitudinal section of other examples of the retainer representing the electrodynamic valve shown in Fig. 1.
Fig. 5 is the figure of the discharge characteristic representing the electrodynamic valve shown in Fig. 1.
Fig. 6 is the longitudinal section of the 2nd embodiment of the electrodynamic valve representing the present invention.
Fig. 7 is the figure of the stop pressing piece representing the electrodynamic valve shown in Fig. 6, and wherein, (A) is axonometric chart, and (B) is to overlook
Figure.
Fig. 8 is in the assembling procedure to the electrodynamic valve shown in Fig. 6, and the origin position (down position) of spool stretches out
The figure that operation illustrates, wherein, (A) is the axonometric chart representing the state being mounted with stop pressing piece under the state of taking a seat, and (B) is
Represent and start to make stop pressing piece and the axonometric chart of bottom retainer rotation status from (A).
Symbol description
1,2 electrodynamic valve
10 valve shafts
14 spools
20 guide bushes
21 cylindrical portion
23 fix threaded portion (external thread part)
24 fixed stop bodies
25 bottom retainers
26 internal thread parts
27 fitting portions
27 retainers (upper surface of fitting portion)
28 feed screw mechanisms
29 bottom stop mechanisms
30 valve shaft supports
33 movable threaded portions (internal thread part)
34 movable stop-motion bodies
35 stop pressing pieces (pressing component)
40 valve bodies
40a valve chamber
41 the 1st openings
41a the 1st conduit
42 the 2nd openings
42a the 2nd conduit
43 inserting holes
44 embedded holes
45 base wall
46 valve port throttle orifices
46a seat portion
47 flange
50 motors
51 rotors
52 stators
55 housings
60 compression helical springs (force application part)
70 Anti-release clamp limiting-members
71 bushing nut
72 rotor pressing pieces
0 axis
Detailed description of the invention
Hereinafter, referring to the drawings the embodiment of the electrodynamic valve of the present invention is illustrated.It addition, in the various figures, about shape
Become the gap between parts, the isolation distance etc. between parts, for invention easy to understand, it addition, for the ease of mapping, sometimes
Exaggeration is described.It addition, in this manual, represent that up and down etc. position, the statement in direction are the direction arrows with Fig. 1 and Fig. 6
Head is expressed as benchmark, does not implies that the position under real use state, direction.
[the 1st embodiment]
Fig. 1 is the longitudinal section of the 1st embodiment of the electrodynamic valve representing the present invention.
The electrodynamic valve 1 of illustrated embodiment mainly possesses valve shaft 10, guide bush 20, valve shaft support 30, valve body 40, housing
55, the motor 50 that is made up of rotor 51 and stator 52, compression helical spring (force application part) 60, Anti-release clamp limiting-members 70,
Feed screw mechanism 28 and bottom stop mechanism 29.
Described valve shaft 10 has top minor diameter part 11, middle large-diameter portion 12 and bottom minor diameter part 13 from upside, under this
The bottom of portion's minor diameter part 13 is integrally formed with obconic spool 14 with the level.
Described guide bush 20 has cylindrical portion 21 and an extended portion 22, and described valve shaft 10 (in the middle of large-diameter portion 12) is with can be at axle
Insert in this cylindrical portion 21 in relative movement (slip) and the state that rotates against around axes O on line O direction, this extended portion 22 from
The upper end of this cylindrical portion 21 extends upward, and the internal diameter of this extended portion 22 is bigger than the internal diameter of this cylindrical portion 21, and this extended portion
22 interpolations have the upper end side of the middle large-diameter portion 12 of described valve shaft 10 and the lower end side of top minor diameter part 11.At described guide bush 20
The periphery of cylindrical portion 21 is formed with fixing threaded portion (external thread part) 23, and this fixing threaded portion 23 constitutes the rotation according to rotor 51
The feed screw mechanism 28 driven and make the spool 14 of described valve shaft 10 carry out relative to seat portion 46a of valve body 40 lifting
One side.It addition, make the bottom (part of the downside of fixing threaded portion 23) of described cylindrical portion 21 be formed as big footpath, and be formed as to
The chimeric fitting portion 27 of embedded hole 44 of valve body 40.Bottom retainer 25 separates regulation with the upper surface 27a of fitting portion 27
Gap h and screw togather and be installed on described fixing threaded portion 23 (downside of valve shaft support 30), in the periphery of this bottom retainer 25
Being equipped with fixed stop body 24 integratedly, this fixed stop body 24 is construed as limiting the rotation of valve shaft support 30 and moves down down
One side of portion's stop mechanism 29.It addition, as described in detail rear, in the present embodiment, make the upper surface 27a shape of fitting portion 27
Become and limit moving down (in other words, it is stipulated that move down limit positions and regulation is taken a seat under state of bottom retainer 25
The position of bottom retainer 25) retainer.
Described valve shaft support 30 has interpolation and has cylindrical portion 31 and top 32, this through setting in top 32 of described guide bush 20
There is the inserting hole 32a of the upper end inserting described valve shaft 10 (top minor diameter part 11).Cylindrical portion at described valve shaft support 30
The inner circumferential of 31 is formed with the movable spiral shell screwing togather and constituting described feed screw mechanism 28 with the fixing threaded portion 23 of described guide bush 20
Stricture of vagina portion (internal thread part) 33, and composition described bottom stop mechanism 29 it is equipped with integratedly in the lower end, periphery of this cylindrical portion 31
The movable stop-motion body 34 of the opposing party.
It addition, in the flat surface being formed between the top minor diameter part 11 of described valve shaft 10 and middle large-diameter portion 12, and institute
Stating between the lower surface at top 32 of valve shaft support 30, insert in the mode of the top minor diameter part 11 of valve shaft 10 in addition, compression is installed
Having compression helical spring (force application part) 60, this compression helical spring 60 is lifting with described valve shaft support 30 to described valve shaft 10
The upper direction force separated in direction (axes O direction), in other words, to described valve shaft 10 (spool 14) (valve closing side downwards
To) force.
Described valve body 40 is such as made up of the metal rounding cylinder such as pyrite, SUS.This valve body 40 has valve chamber in inside
40a, is fixed with the 1st conduit 41a, at this being arranged at horizontal 1st opening 41 of this valve chamber 40a sidepiece to be linked by soldering etc.
The top of valve chamber 40a is formed with inserting hole 43 and embedded hole 44, and described valve shaft 10 (in the middle of large-diameter portion 12) is with can be along axis 0
Direction relative movement (slip) and can be inserted through this inserting hole 43 around the state that axes O rotates against, this embedded hole 44 is fitted together to
The bottom of described guide bush 20 (cylindrical portion 21) is installed fixing, is being arranged at the 2nd longitudinal opening of this valve chamber 40a bottom
Linked by soldering etc. at 42 and be fixed with the 2nd conduit 42a, and the base wall between described valve chamber 40a and described 2nd opening 42
45 are formed with valve port throttle orifice 46, and this valve port throttle orifice 46 has seat portion 46a contacting with described spool 14 or separating.
It is fastened with flange shape plate 47, and the cylindric housing on band top by riveting etc. in the upper end of described valve body 40
The bottom of 55 is docked with the stage portion of the periphery being arranged at this flange shape plate 47 and is welded.
Rotatably it is configured with in the outside of the inner side of described housing 55 and described guide bush 20 and described valve shaft support 30
Rotor 51, in order to rotate the described rotor 51 of driving, is configured with in the outside of described housing 55 by yoke 52a, bobbin 52b, determines
The stator 52 that subcoil 52c and resin mold cover 52d etc. are constituted.Connect at stator coil 52c and have multiple lead terminal 52e, at this
A little lead terminal 52e connect via substrate 52f multiple lead-in wire 52g, by the energising excitation of stator coil 52c so that joining
The rotor 51 being placed in housing 55 rotates around axes O.
Described rotor 51 engaging being configured in housing 55 is supported on described valve shaft support 30, and this valve shaft support 30 is with described
Rotor 51 (integrally) rotates together.
Specifically, described rotor 51 is formed as the bimetallic tube knot being made up of inner core 51a, urceolus 51b and connecting portion 51c
Structure, inner core 51a is connected with urceolus 51b by this connecting portion 51c in the angle position of the regulation around axes O, in the inner circumferential of inner core 51a
It is formed with the pod 51d that (being such as spaced with the angle of 120 degree) extends along axis 0 direction (above-below direction) around axes O.
On the other hand, the periphery (top half) at described valve shaft support 30 projects (such as around axes O with 120 degree
Angle is spaced) vertically extending ridge 30a, it is formed in the both sides, bottom of this ridge 30a and supports described rotor 51
Locking (not shown) upwards.
Ridge 30a of pod 5ld with valve shaft support 30 by making the inner core 51a of rotor 51 engages, and makes rotor 51
Locking of the lower surface of inner core 51a and valve shaft support 30 abuts so that rotor 51 with valve shaft support 30 aligned in position
State is supported by fixing, and described valve shaft support 30 at the described rotor 51 of supporting in described housing 55 and revolves together with this rotor 51
Turn.
It is configured with in the upside of described rotor 51 and valve shaft support 30 and to be made up of bushing nut 71 and rotor pressing piece 72
Anti-release clamp limiting-members 70, this bushing nut 71 is fixed on described valve shaft 10 (top minor diameter part by press-in, welding etc. are outer
11) upper end, to prevent the relative movement on lifting direction of valve shaft support 30 and rotor 51 (in other words, relative to valve shaft
Rotor 51 is shifted onto lower section by support 30) and valve shaft 10 is linked together with valve shaft support 30, rotor pressing piece 72 is by configuring
Between this bushing nut 71 and rotor 51 and be centrally formed inserting hole 72a discoideus of the upper end inserting valve shaft 10
Parts are constituted.That is, described rotor 51 is clamped in the active force by compression helical spring 60 and the valve shaft that exerted a force upward props up
Between frame 30 and described rotor pressing piece 72.It addition, from the upper end of valve shaft support 30 (above-below direction) to locking
Height is the most identical with (above-below direction) of the inner core 51a of rotor 51, the upper surface of valve shaft support 30 (top 32) and institute
The lower surface (tabular surface) stating rotor pressing piece 72 abuts.
It addition, described bushing nut 71 in the upper end being fixed on described valve shaft 10 outer equipped with by make valve shaft support 30 to
The recovery spring 75 that the helical spring of guide bush 20 side force is constituted, to prevent following situation: when action, valve shaft support 30 is relative
The most mobile in guide bush 20, the fixing threaded portion 23 of guide bush 20 is de-with screwing togather of the movable threaded portion 33 of valve shaft support 30
From.
Further, in this electrodynamic valve 1, in order to prevent such as spool 14 to the occlusion of seat portion 46a, and low discharge district is guaranteed
The controlling in territory, when spool 14 is positioned at down position (origin position), is formed with rule between spool 14 and seat portion 46a
The gap (gap that size is H on lifting direction) of sizing.
Origin position (down position) with reference to the Fig. 2 assembling procedure to this electrodynamic valve 1, particularly spool 14 stretches out work
Sequence is described in detail, and first, assembles valve shaft 10, guide bush 20, bottom retainer 25, compression helical spring 60, valve shaft support 30, rotor
51, valve body 40 etc..Now, bottom retainer 25 screws togather with guide bush 20 in the way of can rotating.It addition, in this stage,
Bottom retainer 25 can configure with the retainer 27a of guide bush 20 with abutting, it is also possible to joins at spaced intervals with this retainer 27a
Put.Then, the screw thread feeding machine being made up of the movable threaded portion 33 of the fixing threaded portion 23 of guide bush 20 with valve shaft support 30 is utilized
Structure 28, makes described valve shaft support 30, rotor 51 and valve shaft 10 rotate and decline, until being arranged at the bottom of valve shaft 10
Spool 14 abut (taking a seat) and be somewhat compressed in seat portion 46a, compression helical spring 60, the movable stop-motion body of valve shaft support 30
34 abut with the fixed stop body 24 of bottom retainer 25, and the retainer of bottom retainer 25 (lower surface) and guide bush 20
27a abuts.Further, like this when valve shaft support 30 is configured at down position, embed in the upper end of valve shaft 10
Rotor pressing piece 72 and and stationary bushing nut 71 (take a seat state, with reference to Fig. 2 (A)) outer by press-in, welding etc..
Then, from above-mentioned state of taking a seat, described feed screw mechanism 28 is utilized to make valve shaft 10, valve shaft support 30, turn
The assembly that son 51, Anti-release clamp limiting-members 70 (bushing nut 71 and rotor pressing piece 72) etc. form as one rotate while
Rise and take off from guide bush 20, afterwards, making bottom retainer 25 (in illustrated example, bow to valve opening position relative to guide bush 20
Rotate counter-clockwise during depending on observing) rotate the regulation anglec of rotation.Further, by welding, deposition, bonding etc. this bottom retainer is made
25 can not be fixedly linked on guide bush 20 (fixing threaded portion 23) in the way of rotating against, afterwards, again with screw thread feeding
Described assembly is assembled in guide bush 20 by mechanism 28.Thus, the fixed stop body 24 of bottom retainer 25 relative to guide bush 20
Position change, even if therefore the movable stop-motion body 34 of valve shaft support 30 supports with the fixed stop body 24 of bottom retainer 25
Connect, and valve shaft support 30 be positioned at down position time, between spool 14 and seat portion 46a, also form the gap of prescribed level
(gap that size is H on lifting direction) (released state, with reference to Fig. 2 (B)).It addition, to make described assembly rise come from
After guide bush 20 takes off, bottom retainer 25 is made to rotate the regulation anglec of rotation on valve opening position relative to guide bush 20, by welding,
Deposition, bonding etc. makes this bottom retainer 25 be said by the structure that can not be fixedly linked on guide bush 20 in the way of rotating against
Bright, but as long as being following situation, then without taking off described assembly from guide bush 20, described situation is: only by making described assembling
Body rises relative to guide bush 20, it becomes possible to make bottom retainer 25 rotate the regulation anglec of rotation on valve opening position relative to guide bush 20
Degree, and can be formed can by welding, deposition, bonding etc. make bottom retainer 25 consolidate can not link by the way of rotating against
Gap due to the degree of guide bush 20.
It addition, for the internal thread part 26 of bottom retainer 25, the fixing threaded portion (external thread part) 23 of guide bush 20 and
In the case of using the threaded portion without sideshake (without sideshake) type, the lifting in the gap being formed between spool 14 and seat portion 46a
Size H on direction is consistent with the gap h of the retainer 27a of guide bush 20 with bottom retainer 25 (lower surface) or substantially one
Cause.It is however generally that, sideshake (play or loosen) it is provided with in threaded portion.Therefore, as embodiment described above, make
Bottom retainer 25 abuts with the retainer 27a of guide bush 20 and tightens backward valve opening position rotation (unclamping) and carries out spool 14
When origin position stretches out, rotating the initial stage, retainer 25 holding in described bottom abuts with the retainer 27a of guide bush 20
State (not rising) also rotates, and the most described size H is not necessarily consistent with described gap h.
Specifically, can be it is well understood that fixing by the internal thread part 26 of bottom retainer 25 and guide bush 20 with reference to Fig. 3
When the anglec of rotation of the sideshake amount between threaded portion 23 is set to θ b [°] (being about 180 ° in illustrated example), at above-mentioned origin position
Stretch out in operation, from the state making bottom retainer 25 abut with the retainer 27a of guide bush 20 and tighten (under in this condition,
The upper face side of the internal thread part 26 of portion's retainer 25 contacts with the following side of the fixing threaded portion 23 of guide bush 20) rise, when making under this
Portion's retainer 25 is when valve opening position rotates (unclamping), in the range of anglec of rotation θ b [°] of sideshake amount, due to own wt
Bottom retainer 25 (below) is made to continue to abut ((1)～(3) of Fig. 3) with the retainer 27a of guide bush 20.But, due under
Portion's retainer 25 self rotates, and the position of rotation of the fixed stop body 24 being therefore arranged at this bottom retainer 25 can change.
It is assumed that bottom retainer 25 is fixed on guide bush 20 in the range of anglec of rotation θ b [°] of this sideshake amount, utilize
Feed screw mechanism 28 makes valve shaft support 30 rotate while declining, when the movable stop-motion body 34 and the bottom that make valve shaft support 30
When the fixed stop body 24 of retainer 25 abuts, the down position of valve shaft support 30 is corresponding with the rotation amount of bottom retainer 25
Ground rises.Such as, when setting the flight pitch of internal thread part 26 of portion's retainer 25 (ridge interval each other) and being p, side
Gap is offset the ascending amount Hb of the down position of the valve shaft support 30 in moment and is specified ((3) of Fig. 3) by p × θ b/360.
After sideshake is offset, (anglec of rotation of bottom retainer 25 arrives anglec of rotation θ b [°] of sideshake amount afterwards) is (at this shape
Under state, the following side of the internal thread part 26 of bottom retainer 25 contacts with the upper face side of the fixing threaded portion 23 of guide bush 20), when entering
One step makes bottom retainer 25 when valve opening position rotates, and bottom retainer 25 starts to rotate to rise, and stops in bottom
Gap h is formed between the retainer 27a of moving part 25 and guide bush 20.
Finally, when make bottom retainer 25 from the state that the retainer 27a of guide bush 20 abuts and tightens to valve opening
When direction have rotated anglec of rotation θ and is fixed on guide bush 20, the down position of valve shaft support 30 rises and is specified by p × θ b/360
Ascending amount H, therefore, when valve shaft support 30 is positioned at down position, between spool 14 and seat portion 46a formed lifting side
Size upwards is the gap of H.On the other hand, between the retainer 27a of bottom retainer 25 and guide bush 20, form gap h,
This gap h is to deduct the gap h obtained by sideshake amount from described ascending amount H, i.e. this gap h is by p × (θ-θ b)/360 rule
Fixed.
It addition, in the shown embodiment, bottom retainer 25 is made to exceed anglec of rotation θ b [°] of sideshake amount and rotate,
Thus between the retainer 27a of bottom retainer 25 and guide bush 20, form gap h, but it is being formed at spool 14 and seat portion
Gap between 46a lifting direction on be dimensioned so as to above-mentioned below Hb in the case of, bottom retainer 25 is at sideshake
Rotate in the range of anglec of rotation θ b [°], be therefore formed without between the retainer 27a of bottom retainer 25 and guide bush 20
Gap, keeps the state that bottom retainer 25 (lower surface) abuts with the retainer 27a of guide bush 20.
It addition, in the above-described embodiment, abut by making bottom retainer 25 with the retainer 27a of guide bush 20 and tighten
State as the normal condition (that is, state of taking a seat described in) of the rotation to valve opening position of bottom retainer 25, but reason is worked as
Right, the tightening state of bottom retainer 25 under this normal condition, the position on above-below direction are not limited to illustrate embodiment party
Formula.Such as, bottom retainer 25 can also be by appointing in the range of the anglec of rotation of the sideshake amount shown in (1)～(3) of Fig. 3
Meaning state is as normal condition.It addition, this bottom retainer 25 supports without retainer 27a with guide bush 20 under this normal condition
Connect, such as shown in (4) of Fig. 3, can be using the arbitrary position of guide bush 20 (fixing threaded portion 23) as normal condition.Separately
Outward, bottom retainer 25 is being separated (not abutting) state situation as described normal condition with the retainer 27a of guide bush 20
Under, there is not above-mentioned sideshake, after assembling terminates (that is, described released state), be formed between spool 14 and seat portion 46a
Size H on the lifting direction in gap is less than the gap h between bottom retainer 25 (below) and the retainer 27a of guide bush 20
(in other words, bottom retainer 25 is bigger than described size H with the gap h on the lifting direction of the retainer 27a of guide bush 20).
It addition, in the shown embodiment, limited by the retainer 27a being made up of the upper surface of the fitting portion 27 of guide bush 20
Make moving down of bottom retainer 25, but such as can also as shown in Figure 4, by being formed at the cylindrical portion 21 of guide bush 20
Periphery fixing threaded portion 23 (lower end) formed incomplete thread portion 23a, limit the internal thread part of bottom retainer 25
26 tighten, limits moving down of bottom retainer 25.
In the electrodynamic valve 1 of this structure, when by making rotor 51 revolve the energising excitation of stator 52 (stator coil 52c)
When turning, valve shaft support 30 and valve shaft 10 integratedly rotate.Now, by being propped up with valve shaft by the fixing threaded portion 23 of guide bush 20
The feed screw mechanism 28 that the movable threaded portion 33 of frame 30 is constituted, makes valve shaft 10 lift with spool 14, thus, makes valve
Gap (lifting capacity) increase and decrease between core 14 and seat portion 46a, thus adjust the fluids such as cold-producing medium pass through flow.It addition, i.e.
The movable stop-motion body 34 making valve shaft support 30 abuts with the fixed stop body 24 being fixed on guide bush 20, and spool 14 is positioned at and most declines position
When putting, owing to being formed with gap (demand lifting capacity during valve closing) between spool 14 and seat portion 46a, it is possible to guarantee ormal weight
By flow (with reference to Fig. 5).
So, in the electrodynamic valve 1 of this 1st embodiment, in the way of being obtained in that the state of taking a seat and released state
Designing each portion, this state of taking a seat is: have the bottom retainer 25 of internal thread part 26 of flight pitch p rotating against
Mode is screwed together in the assigned position of guide bush 20, descends shift position making valve shaft support 30 be positioned at most by bottom stop mechanism 29
Time, spool 14 abuts with seat portion 46a；This released state is: when making, the bottom retainer 25 being positioned at described assigned position is relative
Rotate regulation anglec of rotation θ in guide bush 20 to valve opening position and make bottom retainer 25 can not be linked in the way of rotating against
During this guide bush 20, when making valve shaft support 30 be positioned at most by bottom stop mechanism 29 to descend shift position, at spool 14 and valve seat
The gap that size H being formed on lifting direction between portion 46a is specified by p × θ/360；Bottom retainer 25 is relative to guide bush 20
Make bottom retainer 25 so that this guide bush 20 can not be linked in the way of rotating against after valve opening position rotates, thus specify valve
The down position of core 14, the in other words gap between the spool 14 spool 14 and seat portion 46a when down position.
That is, the dimensional accuracy in the gap between spool 14 and seat portion 46a on origin position is substantially dependent on composition bottom stop
The internal thread part 26 of the bottom retainer 25 of mechanism 29 and the dimensional accuracy of the fixing threaded portion 23 of guide bush 20, therefore, it is possible to suppression
The dimensional discrepancy in described gap, and, it is possible to make the controlling of fluid (cold-producing medium) flow in low flow volume region improve.
It addition, by making rotor pressing piece 72 form with location division 73 such that it is able to preventing portion number of packages purpose increases
Add.
[the 2nd embodiment]
Fig. 6 is the longitudinal section of the 2nd embodiment of the electrodynamic valve representing the present invention.
In the electrodynamic valve 1 of above-mentioned 1st embodiment, the bottom retainer 25 being provided with fixed stop body 24 is directly connect
Fixing together in guide bush 20 (fixing threaded portion 23) link, but in the electrodynamic valve 2 of this 2nd embodiment, via being sticked in
Bottom retainer 25 and prevent this bottom retainer 25 stop pressing piece (pressing component) rotated against relative to guide bush 20
35 by this bottom retainer 25 can not link in the way of rotating relative to guide bush 20 (fixing threaded portion 23), other structure
Roughly the same with the electrodynamic valve 1 of above-mentioned 1st embodiment.Therefore, following, only the structure of stop pressing piece 35 is carried out in detail
Illustrate, the symbol identical to the structure tag identical with the electrodynamic valve 1 shown in Fig. 1 etc. and omit detail explanation.It addition, this
The action of the electrodynamic valve 2 of the 2nd embodiment is also identical with the electrodynamic valve 1 of above-mentioned 1st embodiment.
Can be it is well understood that the stop pressing piece (pressing component) 35 of electrodynamic valve 2 of present embodiment be by being formed with reference to Fig. 7
The disk-like member having the insert opening 35a inserting described bottom retainer 25 is constituted, in the phase of the outer peripheral portion of this insert opening 35a
For the substantially opposite side (positions that substantial separation is 180 °) of axes O be equipped with a pair bearing claw 36a, 36b to clamp described under
Portion's retainer 25.This pair bearing claw 36a, 36b are set to relative with the outer surface of described bottom retainer 25, and this pair
The bearing claw 36b holding relatively small the width of circumference (and the most relatively small) in pawl 36a, 36b inserts in insert opening 35a
During top view be scallop 35b of fan-shaped fixed stop body 24 adjacent and (specifically, be intercalated in scallop 35b
The side of valve opening position side of fixed stop body 24 adjacent) configuration.It addition, the outer peripheral portion in described scallop 35b is (detailed
For, it is adjacent to and is intercalated in the side of the side opposite side of the valve opening position side of the fixed stop body 24 of scallop 35b
Part) in the way of relative with the outer surface of fixed stop body 24, erect bearing claw 36C, this bearing claw 36C and described bearing claw
36b clamps up two sides in the week of fixed stop body 24 together.
Bottom retainer 25 (internal thread part 26) is made to be screwed on guide bush 20 (fixing spiral shell with the state that can rotate against
Stricture of vagina portion 23), this bottom retainer 25 will be contained in outside described stop pressing piece 35, when making to be supported by what pawl 36a, 36b, 36C seized on both sides by the arms
Bottom retainer 25 together with stop pressing piece 35 around axes O phase valve opening position (in illustrated example, be the inverse time during top view
Pin) rotate, described bottom retainer 25 rotates and rises (according to circumstances, the most only rotate and do not rise).At this shape
Under state, when by welding, deposition, the flange 47 etc. that this bottom retainer 25 joint is fixed on valve body 40 such as bonding
Time, bottom retainer 25 is can not link (with reference to Fig. 6) relative to guide bush 20 (fixing threaded portion 23) in the way of rotating against.
It addition, each bearing claw 36a, 36b, 36c such as can be by by substantially vertical for a part for this stop pressing piece 35
The bending processes of bending etc. are formed.
The origin position (down position) of the assembling procedure to this electrodynamic valve 2, particularly spool 14 stretches out operation to be carried out
Summary description, first, forms, through the operation identical with above-mentioned 1st embodiment, the state of taking a seat.Then, from this state of taking a seat
Rise, utilize described feed screw mechanism 28 that valve shaft 10, valve shaft support 30, rotor 51, Anti-release clamp limiting-members 70 etc. will be made to be formed as
The assembly of one rotates while rising and after guide bush 20 takes off, being loaded on bottom retainer 25 outside stop pressing piece 35
And be placed on valve body 4 (with reference to Fig. 8 (A)), make bottom retainer 25 together with stop pressing piece 35 relative to guide bush 20 to
Valve opening position rotates the regulation anglec of rotation (with reference to Fig. 8 (B)).Further, by welding, deposition, bonding etc. by stop pressing piece 35
Engage the flange shape plate 47 being fixed on valve body 40, by bottom retainer 25 so that guide bush 20 can not be linked in the way of rotating against
After (fixing threaded portion 23), again with feed screw mechanism 28, described assembly is assembled in guide bush 20.Thus, bottom is only
The fixed stop body 24 of moving part 25 changes relative to the position of guide bush 20, though the movable stop-motion body of therefore valve shaft support 30
34 abut with the fixed stop body 24 of bottom retainer 25, and valve shaft support 30 be positioned at down position time, also spool 14 with
Form the gap (gap that size is H on lifting direction) of prescribed level between seat portion 46a, formed and implement with the above-mentioned 1st
The released state that mode is identical.
It addition, at initial assembling valve shaft 10, guide bush 20, bottom retainer 25, compression helical spring 60, valve shaft support
30, in the stage of rotor 51, valve body 40 etc., it is also possible to carry out being loaded on bottom retainer 25 outside described stop pressing piece 35
Assemble.It addition, described stop pressing piece 35 can also replace the flange 47 of valve body 40 or together with this flange 47,
It is fixed at the fixing guide bush 20 of valve body 40.
It addition, as the explanation carried out based on Fig. 4 in above-mentioned 1st embodiment, in the present embodiment, manage institute
Certain, it is also possible to replace the retainer 27a being made up of the upper surface of the fitting portion 27 of guide bush 20, and by being formed at guide bush
The fixing threaded portion 23 (lower end) of the periphery of the cylindrical portion 21 of 20 forms incomplete thread portion 23a, limits bottom retainer
Tightening of the internal thread part 26 of 25, limits moving down of bottom retainer 25.
So, in the electrodynamic valve 2 of this 2nd embodiment, bottom retainer 25 is prevented relative to leading by utilization
The stop pressing piece (pressing component) 35 rotated against of lining 20, it is possible to position bottom retainer subtly relative to guide bush 20
25, therefore, it is possible to effectively suppress the dimensional discrepancy in described gap.
Claims (8)
1. an electrodynamic valve, possesses:
Valve shaft, this valve shaft is provided with spool in bottom；
Guide bush, this guide bush has cylindrical portion, and this valve shaft is with can relative movement and the shape that can rotate against in the axial direction
This cylindrical portion is inserted in state；
Valve body, this valve body has the seat portion contacting with described spool or separating and is mounted with described guide bush；
Valve shaft support, this valve shaft support has interpolation and has the cylindrical portion of described guide bush and the through top being provided with inserting hole, and
And this valve shaft support links fixing with described valve shaft, this inserting hole inserts the upper end of described valve shaft；
Force application part, this force application part be installed between described valve shaft and described valve shaft support with to described spool to valve closing direction
Force；
Motor, this motor has the rotor for making described valve shaft support rotate and stator relative to described guide bush；
Feed screw mechanism, this feed screw mechanism is formed from the fixing threaded portion of the periphery of described guide bush and is formed at described
The movable threaded portion of the inner circumferential of valve shaft support is constituted, for making the described spool of described valve shaft drive according to the rotation of described rotor
And lift relative to described seat portion；And
Bottom stop mechanism, this bottom stop mechanism is used for limiting the rotation of described valve shaft support and moving down, and by fixing
Stop-motion body is constituted with movable stop-motion body, and this fixed stop body is arranged at the bottom retainer with internal thread part, described female thread
Portion screws togather the described fixing threaded portion being installed on described guide bush, and this movable brake body is arranged at described valve shaft support,
When described spool is positioned at down position, between described spool and described seat portion, form gap, this electrodynamic valve
It is characterised by,
In the way of being obtained in that the state of taking a seat and released state, designing the size shape in each portion, this state of taking a seat is: under described
Portion's retainer is can be screwed together in described guide bush and to be arranged in assigned position in the way of rotating against, by the stop of described bottom
When mechanism makes described valve shaft support be positioned at most to descend shift position, described spool abuts with described seat portion；This released state is: when
Make the described bottom retainer being positioned at described assigned position relative to described guide bush to the valve opening position rotation regulation anglec of rotation
By described bottom retainer in time can not being linked to this guide bush in the way of rotating against, make institute by described bottom stop mechanism
State valve shaft support and be positioned at when most descending shift position, the flight pitch of described internal thread part is set to p, by the described regulation anglec of rotation
It is set to θ, between described spool and described seat portion, forms the described gap that the size on lifting direction is specified by p × θ/360.
Electrodynamic valve the most according to claim 1, it is characterised in that
Under described released state, described bottom retainer is directly joined described guide bush and links fixing.
Electrodynamic valve the most according to claim 1, it is characterised in that
Under described released state, via pressing component, described bottom retainer being linked to described guide bush, this pressing component is prevented
Only described bottom retainer rotating against relative to described guide bush.
Electrodynamic valve the most according to claim 3, it is characterised in that
Described pressing component is engaged in described guide bush or described valve body and is fixed.
5. according to the electrodynamic valve according to any one of claim 1-4, it is characterised in that
The retainer moved down limiting described bottom retainer relative to described guide bush, described rule it are provided with at described guide bush
Location is set to the position that described bottom retainer abuts with described retainer.
Electrodynamic valve the most according to claim 5, it is characterised in that
The downside of the described bottom retainer that described retainer is arranged in described guide bush or the described fixing screw thread of described guide bush
Portion.
Electrodynamic valve the most according to claim 5, it is characterised in that
Under described released state, described bottom retainer abuts with described retainer or separates.
8. an assemble method for electrodynamic valve, this electrodynamic valve possesses:
Valve shaft, this valve shaft is provided with spool in bottom；
Guide bush, this guide bush has cylindrical portion, and this valve shaft is with can relative movement and the shape that can rotate against in the axial direction
This cylindrical portion is inserted in state；
Valve body, this valve body has the seat portion contacting with described spool or separating and is mounted with described guide bush；
Valve shaft support, this valve shaft support has interpolation and has the cylindrical portion of described guide bush and the through top being provided with inserting hole, and
And this valve shaft support links fixing with described valve shaft, this inserting hole inserts the upper end of described valve shaft；
Force application part, this force application part be installed between described valve shaft and described valve shaft support with to described spool to valve closing direction
Force；
Motor, this motor has the rotor for making described valve shaft support rotate and stator relative to described guide bush；
Feed screw mechanism, this feed screw mechanism is formed from the fixing threaded portion of the periphery of described guide bush and is formed at described
The movable threaded portion of the inner circumferential of valve shaft support is constituted, for making the described spool of described valve shaft drive according to the rotation of described rotor
And lift relative to described seat portion；And
Bottom stop mechanism, this bottom stop mechanism is used for limiting the rotation of described valve shaft support and moving down, and by fixing
Stop-motion body is constituted with movable stop-motion body, and this fixed stop body is arranged at the bottom retainer with internal thread part, this internal thread part
Screwing togather the described fixing threaded portion being installed on described guide bush, this movable stop-motion body is arranged at described valve shaft support,
When described spool is positioned at down position, between described spool and described seat portion, form gap, described assembling side
Method is characterised by, comprises following operation:
When not linking fixing by described valve shaft with described valve shaft support, make described bottom retainer can relatively revolve
The mode turned is screwed together in described guide bush and is arranged in assigned position, makes described valve shaft support position by described bottom stop mechanism
In time most descending shift position, described spool is made to abut with described seat portion；
Described valve shaft and described valve shaft support are linked fixing；And
The described bottom retainer being positioned at described assigned position is made to rotate the regulation anglec of rotation relative to described guide bush to valve opening position
Degree and by described bottom retainer so that this guide bush can not be linked in the way of rotating against.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910972420.9A CN110725956B (en) | 2015-05-20 | 2016-04-08 | Electric valve and assembling method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015-102685 | 2015-05-20 | ||
| JP2015102685A JP6501609B2 (en) | 2015-05-20 | 2015-05-20 | Motor-operated valve and method of assembling the same |
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| CN201910972420.9A Division CN110725956B (en) | 2015-05-20 | 2016-04-08 | Electric valve and assembling method thereof |
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| CN106168292A true CN106168292A (en) | 2016-11-30 |
| CN106168292B CN106168292B (en) | 2019-12-13 |
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| CN201910972420.9A Active CN110725956B (en) | 2015-05-20 | 2016-04-08 | Electric valve and assembling method thereof |
| CN201610218022.4A Active CN106168292B (en) | 2015-05-20 | 2016-04-08 | Electric valve and assembling method thereof |
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| CN201910972420.9A Active CN110725956B (en) | 2015-05-20 | 2016-04-08 | Electric valve and assembling method thereof |
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| CN (2) | CN110725956B (en) |
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| CN109723884A (en) * | 2017-10-27 | 2019-05-07 | 株式会社不二工机 | Motor-driven valve |
| CN109723883A (en) * | 2017-10-30 | 2019-05-07 | 株式会社不二工机 | Motor-driven valve |
| CN110094519A (en) * | 2018-01-29 | 2019-08-06 | 株式会社不二工机 | Motor-driven valve |
| CN110319205A (en) * | 2018-03-28 | 2019-10-11 | 株式会社不二工机 | Motor-driven valve |
| CN112469936A (en) * | 2018-07-23 | 2021-03-09 | 株式会社不二工机 | Electric valve assembling method and electric valve |
| CN113108072A (en) * | 2020-01-10 | 2021-07-13 | 株式会社不二工机 | Electric valve |
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| JP6240243B2 (en) * | 2016-03-07 | 2017-11-29 | 株式会社鷺宮製作所 | Motorized valve and motorized valve manufacturing method |
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| JP6445654B2 (en) * | 2017-11-01 | 2018-12-26 | 株式会社鷺宮製作所 | Motorized valve and motorized valve manufacturing method |
| JP6684836B2 (en) * | 2018-01-29 | 2020-04-22 | 株式会社不二工機 | Motorized valve |
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| CN110094519A (en) * | 2018-01-29 | 2019-08-06 | 株式会社不二工机 | Motor-driven valve |
| CN110094519B (en) * | 2018-01-29 | 2022-07-08 | 株式会社不二工机 | Electric valve |
| CN110319205A (en) * | 2018-03-28 | 2019-10-11 | 株式会社不二工机 | Motor-driven valve |
| CN112469936A (en) * | 2018-07-23 | 2021-03-09 | 株式会社不二工机 | Electric valve assembling method and electric valve |
| CN112469936B (en) * | 2018-07-23 | 2022-12-06 | 株式会社不二工机 | Electric valve assembling method and electric valve |
| CN113108072A (en) * | 2020-01-10 | 2021-07-13 | 株式会社不二工机 | Electric valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106168292B (en) | 2019-12-13 |
| JP2016217451A (en) | 2016-12-22 |
| JP6501609B2 (en) | 2019-04-17 |
| CN110725956A (en) | 2020-01-24 |
| CN110725956B (en) | 2021-09-03 |
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