CN206647589U - A kind of torque controling mechanism of electric device for valve - Google Patents
A kind of torque controling mechanism of electric device for valve Download PDFInfo
- Publication number
- CN206647589U CN206647589U CN201720379613.XU CN201720379613U CN206647589U CN 206647589 U CN206647589 U CN 206647589U CN 201720379613 U CN201720379613 U CN 201720379613U CN 206647589 U CN206647589 U CN 206647589U
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- dial
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- electric device
- cams
- torque
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Abstract
It the utility model is related to a kind of torque controling mechanism of electric device for valve, including push rod, support and the microswitch installed in the support both sides, also include dial and two cams, the two cams root is movably connected on a tooth axle, and two cam be located at the dial upper surface, two symmetrical annular grooves are provided with the dial, two adjusting screws are fixedly mounted in the annular groove both ends respectively, deep-slotted chip breaker is provided with the middle part of cam, the two cams arc channel opening is inside, tooth axle is acted on by the push rod to rotate to make the adjusting screw concomitant rotation on dial, cam is acted with corresponding microswitch.
Description
Technical field
It the utility model is related to mechanical field, more particularly to a kind of torque controling mechanism of electric device for valve.
Background technology
Electric device for valve largely uses worm screw play formula torque controling mechanism at present, and operation principle is electric device
Output torque when gradually increasing, the axial force of worm screw also with gradual increase, i.e. disk spring decrement increase, by pushing away
Bar makes dial and adjusting screw deflect, and when output shaft torque, increases to predetermined value, it is micro- that adjusting screw promotes cam to make
Dynamic switch motion, makes motor stop operating.Worm screw can axially come and go play, the microswitch in the opening and closing direction of valve
Set respectively, it is independent mutually.
Above-mentioned torque controling mechanism is a certain position that cam is fixed on to dial, such as：Electric device for valve close to
Operation, when output shaft torque, reaches predetermined value, cam rotates counterclockwise under the drive of dial makes pass be moved to microswitch
Make, motor stalling, send fully closed signal；But under the prolonged opposite force effect of butterfly spring, dial can be suitable with moving cam
Hour hands rotate minute angle so that close and resetted to microswitch, fully closed blackout, robot control system(RCS) will detect valve position not complete
Off position, produce alarm signal.
The content of the invention
The technical problems to be solved in the utility model is：Torque controling mechanism carves robot control system(RCS) meeting under opposite force effect
Generation detects valve position not in the situation of closed positions, and the utility model provides a kind of direct torque machine of electric device for valve
Structure solves the above problems.
First technical scheme is used by the utility model solves its technical problem：A kind of electric device for valve turns
Square controlling organization, including push rod, support and the microswitch installed in the support both sides, in addition to dial and two cams,
The two cams root is movably connected on a tooth axle, and two cams are located at the dial upper surface, are opened on the dial
There are two symmetrical annular grooves, the annular groove both ends are fixedly mounted two adjusting screws, deep-slotted chip breaker are provided with the middle part of cam respectively,
The two cams arc channel opening is inside, and acting on tooth axle by the push rod rotates to make the adjusting screw on dial therewith
Rotate, cam is acted with corresponding microswitch.Over torque predetermined value and reset predetermined value can adjust respectively, structure letter
It is single.
Specifically, the deep-slotted chip breaker of the cam is adapted with the upper surface external arc of adjusting screw, it is conveniently adjusted screw and pushes away
Moving cam rotates.
Specifically, the end face outside of the cam is smooth surface, reduce the abrasion between cam and microswitch, extension makes
Use the life-span.
The beneficial effects of the utility model are a kind of electric machine of automobile wiper and relay performance detection means, over torque
Predetermined value and reset predetermined value can adjust respectively, have the advantages that simple in construction, easy to adjust, action is accurate, control accuracy is high.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 be the utility model close to torque switch act when structural representation；
Fig. 2 is the structural representation that the utility model dial rotates clockwise certain angle；
Fig. 3 be the utility model close to torque switch reset when structural representation.
Drawing reference numeral：1- push rods, 2- supports, 3- dials, 4-, which is closed to torque, resets adjusting screw
5- is closed to over torque adjusting screw, and 6- is closed to cam, and 7- is closed to microswitch, 8- tooth axles, and 9- is opened to over torque tune
Whole screw, 10- are opened to cam, and 11- is opened to torque and resets adjusting screw, and 12- is opened to microswitch.
Embodiment
In order to deepen to understanding of the present utility model, the utility model is done further below in conjunction with drawings and examples
It is described in detail.
The utility model proposes a kind of torque controling mechanism of electric device for valve, including push rod 1, support 2 and installation
Microswitch in the support both sides, in addition to the cam of dial 3 and two, the two cams root are movably connected in a tooth axle
On 8, and two cams are located at the upper surface of dial 3, and two symmetrical annular grooves, the ring are provided with the dial 3
Two adjusting screws are fixedly mounted in shape groove both ends respectively, and deep-slotted chip breaker is provided with the middle part of cam, and the two cams arc channel opening is inside, are led to
Cross the push rod and act on tooth axle 8 and rotate and make the adjusting screw concomitant rotation on dial, cam is opened with corresponding fine motion
Pass acts.The deep-slotted chip breaker of the cam is adapted with the upper surface external arc of adjusting screw.The end face outside of the cam
For smooth surface.
Referring to accompanying drawing 1, electric device for valve is closed to operation, and when output shaft torque, reaches predetermined value, dial 3 is counterclockwise
Rotate, drive and close to over torque adjusting screw 5, promoting to close to cam 6 makes pass be acted to microswitch 7, motor stalling, sends complete
OFF signal；
Such as Fig. 2, under the prolonged opposite force effect of butterfly spring, dial 3, close to over torque adjusting screw 5
Minute angle is rotated clockwise with closing to reset adjusting screw 4, is closing to over torque adjusting screw 5 and is closing due to closing to cam 6
To between reset adjusting screw 4 dial 3 will not be followed to rotate, close to microswitch 7 and remain operating state, avoid above-mentioned
The problem of torque switch resets.
Such as Fig. 3, closed when electric device output shaft closes to be less than to torque to when resetting torque predetermined value, dial 3 is clockwise
Rotate, drive and close to adjusting screw 4 is resetted, promoting to close to cam 6 makes pass be resetted to microswitch 7.
It can change electric device by adjusting to close to the position of over torque adjusting screw 5 and close to over torque predetermined value,
It can be closed by adjusting to close to the position change electric device for resetting adjusting screw 4 to the predetermined value for resetting torque.It is opened to torque
The action and reset of switch are identical to principle with closing.
Embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model, it is every
The equivalent structure transformation made using the utility model specification and accompanying drawing content, or directly or indirectly it is used in other correlations
Technical field, similarly it is included in scope of patent protection of the present utility model.
Claims (3)
1. a kind of torque controling mechanism of electric device for valve, including push rod, support and the fine motion installed in the support both sides
Switch, it is characterised in that：Also include dial and two cams, the two cams root is movably connected on a tooth axle, and two is convex
Wheel is located at the dial upper surface, and two symmetrical annular grooves, the annular groove both ends difference are provided with the dial
Two adjusting screws are fixedly mounted, are provided with deep-slotted chip breaker in the middle part of cam, the two cams arc channel opening is inside, makees by the push rod
Rotated for tooth axle and make the adjusting screw concomitant rotation on dial, cam is acted with corresponding microswitch.
A kind of 2. torque controling mechanism of electric device for valve according to claim 1, it is characterised in that：The cam
Deep-slotted chip breaker is adapted with the upper surface external arc of adjusting screw.
A kind of 3. torque controling mechanism of electric device for valve according to claim 1 or 2, it is characterised in that：It is described convex
The end face outside of wheel is smooth surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720379613.XU CN206647589U (en) | 2017-04-12 | 2017-04-12 | A kind of torque controling mechanism of electric device for valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720379613.XU CN206647589U (en) | 2017-04-12 | 2017-04-12 | A kind of torque controling mechanism of electric device for valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206647589U true CN206647589U (en) | 2017-11-17 |
Family
ID=60275545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720379613.XU Active CN206647589U (en) | 2017-04-12 | 2017-04-12 | A kind of torque controling mechanism of electric device for valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206647589U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108267115A (en) * | 2017-12-15 | 2018-07-10 | 中国联合工程有限公司 | A kind of double indirection point distance-measuring devices and its measuring method |
| WO2023055590A1 (en) * | 2021-09-30 | 2023-04-06 | General Equipment And Manufacturing Company, Inc., D/B/A Topworx, Inc. | Transmission assembly for switchbox |
| GB2626272A (en) * | 2021-09-30 | 2024-07-17 | General Equipment And Mfg Company Inc D/B/A Topworx Inc | Transmission assembly for switchbox |
-
2017
- 2017-04-12 CN CN201720379613.XU patent/CN206647589U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108267115A (en) * | 2017-12-15 | 2018-07-10 | 中国联合工程有限公司 | A kind of double indirection point distance-measuring devices and its measuring method |
| WO2023055590A1 (en) * | 2021-09-30 | 2023-04-06 | General Equipment And Manufacturing Company, Inc., D/B/A Topworx, Inc. | Transmission assembly for switchbox |
| GB2626272A (en) * | 2021-09-30 | 2024-07-17 | General Equipment And Mfg Company Inc D/B/A Topworx Inc | Transmission assembly for switchbox |
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