CN106151645B - The full-automatic manual/electric switching device of electric device for valve - Google Patents
The full-automatic manual/electric switching device of electric device for valve Download PDFInfo
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- CN106151645B CN106151645B CN201510131103.6A CN201510131103A CN106151645B CN 106151645 B CN106151645 B CN 106151645B CN 201510131103 A CN201510131103 A CN 201510131103A CN 106151645 B CN106151645 B CN 106151645B
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- electromagnetic clutch
- worm shaft
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- shaft
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Abstract
The invention discloses a kind of full-automatic manual/electric switching devices of electric device for valve, the electric device for valve includes a main drive gear and a man-operated mechanism equipped with manual shaft equipped with worm shaft, the full-automatic manual/electric switching device includes an electromagnetic clutch open in usual and a normally closed type electromagnetic clutch, electromagnetic clutch open in usual is mounted on worm shaft at motor, the terminal pad and worm shaft gear of electromagnetic clutch open in usual are solidly installed and empty frame is on worm shaft, the magnetic yoke of electromagnetic clutch open in usual is linked together by flat key with worm shaft, gap is formed between the moving armature and magnetic yoke of electromagnetic clutch open in usual；One end of normally closed type electromagnetic clutch is fixed on worm shaft, and the other end is mounted in manual shaft and can make short-range axial movement, and when driving the handle of man-operated mechanism, worm shaft is rotated with；After energization, it is mutually independent between worm shaft and manual shaft.The apparatus structure is simple and convenient to operate and securely and reliably.
Description
Technical field
The present invention relates to electric device for valve fields, more particularly to a kind of full-automatic manual/electricity of electric device for valve
Dynamic switching device.
Background technique
Valve is the important component in pipe-line system, be for being truncated or adjusting rate-of flow in pipe-line system, it is each
Industrial department will use valve products.Electrically operated valve is collectively constituted by electric device for valve and valve body, electric valve dress
Setting is both a considerable base apparatus in the component and industrial automation system of electrically operated valve.
From the 1950s, electric device for valve begins to be widely used in each industrial department in China, but
Its main function only replaces manpower to go to operate those bigbore valves, therefore fairly simple to its technical requirements,
Manpower is also needed to carry out auxiliary operation when use mostly.From the beginning of the sixties, each industrial department in China starts using automatic control skill
Art.The application of program control technology and electronic computer technology proposes adaptation automated control operation to electrically operated valve and wants
It asks, and original electrically operated valve does not adapt to this requirement completely.Therefore, novel, the energy for being suitable for each industrial department are developed
It is very necessary to adapt to the electric device for valve (hereinafter referred to as electric device) that automation requires.
Various electric device for valve are mutually variant from structure, but press function division, and every kind of electric device substantially all wraps
Include following component: (1) main drive gear-retarder, (2) manual/electric switching mechanism-electromagnetic clutch, (3) stroke
Control mechanism and (4) torque-limiting mechanism.
Currently, prime mover of most electric devices all uses threephase asynchronous, also have a small number of using single-phase electricity
Motivation.The reduction of speed must be realized by retarder between electric device and motor, here it is electric devices
Main drive gear.Electric device is driven by electricity realization operation, but in accident and during equipment debugging, hand-drive
It is still essential mode of operation, so, any electric device should all be equipped with manual-operating mechanism.In order to adapt to operating condition
Change, should have that there are two types of the switching mechanisms between operation, i.e. manual/electric switching mechanism in electric device.Manual/electric switching
Mechanism can be divided into three kinds of full manual switching, semi-automatic switching and full-automatic switching forms by function.
The working principle diagram of existing automanual hand/electric switch-over mechanism is as shown in Figure 1.As shown in the figure is the electricity of device
Dynamic position 24 is motor gear in figure, 30 is worm screw splined shaft, 31 is manual gear, 32 is worm screw, 33 is worm gear, 34 is behaviour
Make handwheel.When needing to be manually operated, switching handle 21 is moved by direction shown in arrow in figure.Shift fork 22 makes interposed clutch
27 move right by direction shown in arrow in figure, are meshed with the dental inlay on the manual half-clutch device gear 28 on right side, and at this time two
Declutcher control lever 26 on manual mode position shown in Fig. 1 b, is seized the extension of shift fork 22, makes hand under the effect of tension spring 35
Dynamic state is maintained, and operation handwheel 34 can be carried out manual operation.When needing electric operating, starting motor 23 makes
Worm shaft gear 25 rotates, and the separation pin 36 on worm shaft gear 25 opens two declutcher control levers 26 respectively.Then, shift fork 22
Extension moved up under the action of reset spring 29, be moved to the left interposed clutch 27, with the worm shaft gear in left side
Dental inlay on 25 is meshed, and declutcher control lever 26 is on motoring condition position shown in Fig. 1 a, so that electric operating is maintained.
Fig. 2 a~2d is the structural schematic diagram of existing full-automatic manual/electric switching mechanism.It is driven approach are as follows: electronic
3 → column gear transmission of machine → 1 → splined shaft of electronic half-clutch 2 → interposed clutch of device, 10 (i.e. worm shaft) → worm-drive →
Output shaft.
When needing to switch to manual operation, handwheel 5 is rotated, the excentric sleeve 4 coaxial with handwheel stirs ball sleeve 6, rolls
6 sets of bead sleeve on ball 7, so interposed clutch 1 is just allocated to the right, are engaged with manual half-clutch device 11.It is same at this
When, 1 pressuring spring 9 of interposed clutch, shift fork 8 is swung to the right under the drive of interposed clutch using axis as the center of circle, upper part
Oblique convex block slide downward, falls into the notch of buckle releaser 12.Since buckle releaser 12 is closed by the effect of tension spring 13, on the one hand clamp
The axle center of motor 3, is on the other hand blocked the oblique convex block on 8 top of shift fork by the notch of buckle releaser 12, prevent shift fork 8 reset (to
It is left), therefore also it is prevented that interposed clutch 1 is slided to the left, realize manual operation.Transmission approach at this time is: handwheel 5 →
Bevel gear transmission → column gear transmission → manual half-clutch 1 → splined shaft of device 10 (i.e. worm shaft) → worm gear → output shaft.
In electric operating, as long as motor 3 rotates, the release pin 15 on motor reel 14 will push the two of buckle releaser open
Arm opens the notch of buckle releaser 12.The oblique convex block on 8 top of shift fork just has upward tendency toward sliding at this time, passes through tripping so that having
A possibility that device notch, and spring 9 is to press against interposed clutch always to the left, as long as the oblique convex block on 8 top of shift fork is possible to
It moves up, then interposed clutch 1 will easily be pushed to the left side under the action of spring 9, is nibbled with electronic half-clutch device 2
It closes, realizes electric operating.As long as motor reel rotates always, buckle releaser 12 is impossible to be closed, and spring 9 just pushes always centre
Clutch 1 guarantees motor engagement.
Full-automatic hand-the electric switch-over mechanism has a significant drawback, be exactly both excentric sleeve 4 and ball sleeve 6 is all round
Cylinder, two cylindrical bodies are mutually cut to a line, and this line is easy to slip over.But due to the factors such as material and heat treatment process,
So that the line of two circle the tangent becomes a face, furthermore two cylindrical center's linear distances and the depth of parallelism in design, manufacture or were assembled
Inevitably there is error in journey, due to the two, it is possible to when switching to electric operating by manual operation, excentric sleeve 4
Prevent ball sleeve 6 move to left so that when electronic clutch engagement not on.Certainly, if artificially rotating handwheel 5 at this time, change
Become the position of excentric sleeve 4, ball sleeve 6 together with interposed clutch 1 will slides left without being blocked, realize electronic nibbles
It closes, here it is the switching usually said " dead zone " or switchings " dead point ", this is very harmful in centralized control.Therefore, at present
The manufacturing firm of domestic electric device for valve is essentially all the electric device for valve product for producing semi-automatic switch forms.
Summary of the invention
The object of the present invention is to provide a kind of flexible movements, the full-automatic manual/electric of safe and reliable electric device for valve
Switching device.
For this purpose, technical scheme is as follows:
A kind of full-automatic manual/electric switching device of electric device for valve, the electric device for valve are equipped with including one
The main drive gear of worm shaft and a man-operated mechanism equipped with manual shaft.
The full-automatic manual/electric switching device includes an electromagnetic clutch open in usual and a normally closed type electromagnetic clutch
Device, the electromagnetic clutch open in usual are mounted on the worm shaft at motor, the terminal pad of the electromagnetic clutch open in usual
It is solidly installed with worm shaft gear and empty frame is on worm shaft, the magnetic yoke of the electromagnetic clutch open in usual passes through the same worm screw of flat key
Axis connection together, forms gap between the moving armature and magnetic yoke of the electromagnetic clutch open in usual.
One end of the normally closed type electromagnetic clutch is fixed on worm shaft, and the other end is mounted in manual shaft and can make
Short-range axial movement, when driving the handle of man-operated mechanism, the worm shaft is rotated with；After energization, the worm shaft
It is mutually independent between manual shaft.
The normally closed type electromagnetic clutch includes determining armature, moving armature and magnetic yoke, described to determine armature and be packed in the worm screw
On axis, the moving armature is installed in the manual shaft by spline, and the circumferencial direction in the magnetic yoke along its mounting hole is formed with
Multiple holes are equipped with ejector pin close to moving armature side in each hole, and reset spring and holding screw, institute are housed behind ejector pin
It states and determines armature and moving armature and be mutually twisted under the action of the ejector pin, form gap between the moving armature and magnetic yoke.
Preferably, the worm shaft gear passes through a pair of of deep groove ball bearing sky frame on worm shaft.
Preferably, gap is 0.3mm between the moving armature and magnetic yoke of the electromagnetic clutch open in usual.
Preferably, the gap between the moving armature and magnetic yoke of the normally closed type electromagnetic clutch is 1.5mm.
The full-automatic manual/electric switching device of electric device for valve of the invention passes through the synchronization of two electromagnetic clutch
Auto-manual/electric switching function of electric device for valve is realized in movement, and structure is simple and convenient to operate and securely and reliably.
Detailed description of the invention
The working principle diagram of the existing semi-automatic hand/electric switch-over mechanism of Fig. 1 a；
Fig. 1 b, 1c be respectively in motoring condition and the manual mode following figure 1a A-A to sectional view；
Fig. 2 a is the working principle diagram of existing full-automatic manual/electric switching mechanism；
Fig. 2 b is the schematic top plan view at clutch position in Fig. 2 a；
Fig. 2 c, Fig. 2 d be respectively in motoring condition and the manual mode following figure 2b A-A to sectional view；
Fig. 3 is the structural schematic diagram of existing electromagnetic clutch open in usual；
Fig. 4 is the mounting structure schematic diagram of motor junction electromagnetic clutch open in usual and worm shaft in the present invention；
Fig. 5 is the structural schematic diagram of normally closed type electromagnetic clutch in the present invention；
Fig. 6 is the mounting structure schematic diagram for locating normally closed type electromagnetic clutch in the present invention manually；
The schematic perspective view of full-automatic manual/electric switching device Fig. 7 of the invention；
Full-automatic manual/electric switching device partial sectional view Fig. 8 of the invention.
Specific embodiment
The structure of full-automatic manual/electric switching device of the invention is described in detail with reference to the accompanying drawing.
Electromagnetic clutch is common a kind of electric component in machine tool, its not only flexible movements, and safety, can
It leans on.Electromagnetic clutch is successfully introduced into electric device for valve by the present invention in the design process of electric device for valve, is led to
The synchronization action of two electromagnetic clutch is crossed, the manual/electric for safely and reliably realizing electric device for valve automatically switches
Function.In the two electromagnetic clutch, one is electromagnetic clutch open in usual, is mounted on worm shaft at motor, another
A is normally closed type electromagnetic clutch, is mounted at manual shaft.The structure to this two pieces clutch and installation site carry out below
It is described in detail.
(1) electromagnetic clutch of motor junction
One electromagnetic clutch open in usual as shown in Figure 3 is installed at motor in worm shaft, which is
Commercial product is always in the state of power loss.In mounting structure schematic diagram shown in Fig. 4,44 touch for brush
Ring, 46 be cabinet, its working principle is that: the terminal pad 42 of electromagnetic clutch is connected by hexagon socket head cap screw with worm shaft gear 41
Together, and by a pair of of deep groove ball bearing sky frame on worm shaft 47, the magnetic yoke 45 of electromagnetic clutch passes through the same worm screw of flat key
Axis connection is together.At this point, there is the gap of 0.3mm between moving armature 43 and magnetic yoke 45.When worm shaft 47 rotates, will not influence
To the rotation of worm shaft gear 41, vice versa.After electromagnetic clutch is powered, the coil in magnetic yoke 45 generates magnetic force, and gram
Moving armature 43 is drawn to left side, is entrenched togather with magnetic yoke 45 by the elastic force for taking reset spring.At this point, working as worm shaft gear 41
When rotation, worm shaft 47 will be driven to rotate together by electromagnetic clutch.
(2) electromagnetic clutch at manual shaft
Realize the full-automatic handoff functionality of the manual/electric of electric device, depending merely on an electromagnetic clutch open in usual is
Inadequate, it is also necessary in the electromagnetic clutch of one normally closed type of manual place's setting, scheduled function could be completed.So-called normally closed type
Electromagnetic clutch refer in power loss, clutch be closure.
The electromagnetic clutch of normally closed type in the present invention is restructured on the basis of electromagnetic clutch open in usual.Fig. 5
It show the structural schematic diagram of several critical components of the normally closed type electromagnetic clutch after restructuring.The main process of restructuring is just
It is to grind off the dental inlay on original clutch magnet yoke, and process three holes on it, one end tap out in hole.In addition, plus
Three ejector pins 53 of work load onto reset spring 57 and holding screw 58, reset spring 57 in the hole behind ejector pin 53
Restoring force can be adjusted by holding screw 58.Magnetic yoke component after restructuring is as shown in 54 in Fig. 5.It also needs to process one later
Armature 51 and moving armature 52 are determined to what is be mutually twisted.Determining armature 51 can be fixed on worm shaft by holding screw 55, and be moved
Armature 52 can make short-range axial movement by spline in manual shaft 62.In the embodiments illustrated in the figures, moving armature 52
The gap of 1.5mm is formed between magnetic yoke 54.
Referring to Fig. 6, when being assembled, determines armature 51 and be fixed on worm shaft 47.The magnetic yoke 54 of restructuring is right from manual shaft 62
Side is packed into, then is sequentially loaded into positioning sleeve 59, bearing 60, and compressed by bearing (ball) cover 61.Moving armature 52 is from the left side of manual shaft 62
It is packed into, and axially position is carried out by one piece of circular baffle plate and soket head cap screw 58.The distance of moving armature 52 and magnetic yoke 54 can pass through
Soket head cap screw 58 is adjusted, to guarantee between two components within the scope of effective magneticaction.In entire clutch
It is provided with watch window on cabinet 46 above device, the working condition of clutch, distance everywhere easy to adjustment in time can be observed.
The working principle of normally closed type electromagnetic clutch after restructuring are as follows: determine armature 51 and pass through holding screw 55 and worm shaft 47
It is fixed together.Moving armature 52 at this time is interlocked under the action of ejector pin 53 in magnetic yoke 54 with armature 51 is determined.Driving
Handle 63, so that it may worm shaft 47 be driven to rotate.After normally closed type electromagnetic clutch is powered, the coil in magnetic yoke 54 generates magnetic
Power, and overcome the thrust of ejector pin 53, moving armature 52 is drawn to right side, makes moving armature 52 and determines the disengaging occlusion of armature 51.At this moment
It is mutually independent between worm shaft 47 and manual shaft 62, then driving handle 63, worm shaft 47 would not have rotated together.
The present invention is reliably and securely realized electronic by the combination of normally opened, normally closed two kinds of form electromagnetic clutch
The full-automatic handoff functionality of the manual/electric of device.Referring to figs. 7 and 8, Fig. 8 is the manual operation state of electric device.It is electric at two
Magnet clutch is all not charged, and the electromagnetic clutch open in usual 73 at motor 71 is open, the normally closed type electricity at man-operated mechanism 78
Magnet clutch 77 is closure.Driving handle 63, worm shaft 47 and 62 synchronization action of manual shaft turn without will drive motor gear
It is dynamic.When needing electronic, two electromagnetic clutch 73,77 are charged, and the electromagnetic clutch open in usual 73 at motor is closed, worm shaft
It is rotated together with motor gear；And the normally closed type electromagnetic clutch 77 located manually is opened, and worm shaft and manual shaft are disengaged, and is realized
Electric operating.The appended drawing reference 72 not being illustrated herein is helical gear, and 74 be range controlling mechanism, and 75 be Denso output shaft,
46 be cabinet, and 76 be clutch brush.
Claims (2)
1. a kind of full-automatic manual/electric switching device of electric device for valve, the electric device for valve includes one equipped with snail
The main drive gear of bar axis (47) and a man-operated mechanism equipped with manual shaft (62), it is characterised in that: the full-automatic manual/electric
Switching device includes an electromagnetic clutch (73) open in usual and a normally closed type electromagnetic clutch (77), the electromagnetic clutch open in usual
Device (73) is mounted on the worm shaft (47) at motor (71), the terminal pad (42) of the electromagnetic clutch open in usual and worm screw
Shaft gear (41) is solidly installed and empty frame is on worm shaft (47), and the magnetic yoke (45) of the electromagnetic clutch (73) open in usual passes through
The same worm shaft of flat key (47) links together, between the moving armature (43) and magnetic yoke (45) of the electromagnetic clutch (73) open in usual
Form gap；One end of the normally closed type electromagnetic clutch (77) is fixed on worm shaft (47), and the other end is mounted on manual shaft
(62) on and short-range axial movement can be made, when driving the handle of man-operated mechanism, the worm shaft (47) is rotated with；
After energization, it is mutually independent between the worm shaft (47) and manual shaft (62)；
The normally closed type electromagnetic clutch (77) includes determining armature (51), moving armature (52) and magnetic yoke (54), described to determine armature
(51) it is packed on the worm shaft (47), the moving armature (52) is installed on the manual shaft (62) by spline, the magnetic
Circumferencial direction on yoke (54) along its mounting hole is formed with multiple holes, and ejector pin is housed close to moving armature (52) side in each hole
(53), reset spring (57) and holding screw (58) are housed behind ejector pin (53), it is described to determine armature (51) and moving armature
(52) it is mutually twisted under the action of the ejector pin (53), forms gap between the moving armature (52) and magnetic yoke (54)；
Gap is 0.3mm between the moving armature (43) and magnetic yoke (45) of the electromagnetic clutch open in usual (73)；
Gap between the moving armature (52) and magnetic yoke (54) of the normally closed type electromagnetic clutch (77) is 1.5mm.
2. the full-automatic manual/electric switching device of electric device for valve according to claim 1, it is characterised in that: institute
It states worm shaft gear (41) and passes through a pair of of deep groove ball bearing sky frame on worm shaft (47).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510131103.6A CN106151645B (en) | 2015-03-25 | 2015-03-25 | The full-automatic manual/electric switching device of electric device for valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510131103.6A CN106151645B (en) | 2015-03-25 | 2015-03-25 | The full-automatic manual/electric switching device of electric device for valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106151645A CN106151645A (en) | 2016-11-23 |
| CN106151645B true CN106151645B (en) | 2019-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510131103.6A Active CN106151645B (en) | 2015-03-25 | 2015-03-25 | The full-automatic manual/electric switching device of electric device for valve |
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| Country | Link |
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| CN (1) | CN106151645B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374925A (en) * | 2018-04-13 | 2018-08-07 | 天津百利二通机械有限公司 | The electromagnetic clutch structure and its working method of electric device for valve |
| CN108506554A (en) * | 2018-06-14 | 2018-09-07 | 中国计量大学 | A kind of manual/electric integral type PE ball valve closing devices |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3400797A (en) * | 1966-07-05 | 1968-09-10 | Bendix Corp | Electromagnetic clutch or brake with dual coils |
| CN2132899Y (en) * | 1991-12-19 | 1993-05-12 | 王庆宪 | Valve electric device |
| CN202252019U (en) * | 2011-10-16 | 2012-05-30 | 江苏神通阀门股份有限公司 | Electric butterfly valve |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMI20070862A1 (en) * | 2007-04-26 | 2008-10-27 | Baruffaldi Spa | ENGAGEMENT EQUIPMENT THROUGH ELASTIC MEANS AND ELECTROMAGNETIC RELEASE FOR THE TRANSMISSION OF A ROTATION TO A CONDUCTED PART |
| CN102466076A (en) * | 2010-11-09 | 2012-05-23 | 张松 | Electric butterfly valve capable of being closed during power failure |
| JP6135035B2 (en) * | 2011-09-26 | 2017-05-31 | 株式会社ジェイテクト | Electromagnetic clutch |
| CN203686300U (en) * | 2014-01-24 | 2014-07-02 | 浙江澳翔自控科技有限公司 | Manual and electric automatic clutch mechanism of electric actuator |
-
2015
- 2015-03-25 CN CN201510131103.6A patent/CN106151645B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3400797A (en) * | 1966-07-05 | 1968-09-10 | Bendix Corp | Electromagnetic clutch or brake with dual coils |
| CN2132899Y (en) * | 1991-12-19 | 1993-05-12 | 王庆宪 | Valve electric device |
| CN202252019U (en) * | 2011-10-16 | 2012-05-30 | 江苏神通阀门股份有限公司 | Electric butterfly valve |
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| Publication number | Publication date |
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| CN106151645A (en) | 2016-11-23 |
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