CN202868007U - Manual emergency butterfly valve driving device using lead screw drive - Google Patents
Manual emergency butterfly valve driving device using lead screw drive Download PDFInfo
- Publication number
- CN202868007U CN202868007U CN 201220361178 CN201220361178U CN202868007U CN 202868007 U CN202868007 U CN 202868007U CN 201220361178 CN201220361178 CN 201220361178 CN 201220361178 U CN201220361178 U CN 201220361178U CN 202868007 U CN202868007 U CN 202868007U
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- China
- Prior art keywords
- butterfly valve
- piston rod
- driving
- leading screw
- lead screw
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- Expired - Fee Related
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Abstract
The utility model discloses a manual emergency butterfly valve driving device using lead screw drive. The manual emergency butterfly valve driving device comprises a translation mechanism, a shifting fork mechanism and a driving device shell, wherein the translation mechanism is driven by a hydraulic cylinder or a cylinder; and a spiral translation mechanism is additionally arranged. According to the utility model, through the additionally arranged spiral translation mechanism and the shifting fork mechanism, butterfly valve is driven by hydraulic and pneumatic driving devices under emergency conditions. The manual emergency butterfly valve driving device has the advantages of simple structure and convenient operation and is suitable for emergency driving of hydraulic and pneumatic driving devices; and emergency driving problems of the hydraulic and pneumatic driving devices of the butterfly valve can be solved.
Description
Technical field
The utility model relates to a kind of emergency driving device, and specifically, the utility model relates to a kind of manual-operated emergent butterfly valve drive unit that adopts lead screw transmission.
Background technique
Existing butterfly valve drives to be had manually, hydraulic pressure, the form such as pneumatic, electronic, hydraulic pressure on the market, pneumatic actuating device generally drive the shift fork swirl gear that is connected with the valve rod of butterfly valve by hydraulic pressure or pneumatic drive translation mechanism, realize the rotation of valve rod, thereby realize the butterfly valve opening and closing.Adopt hydraulic pressure, pneumatic drive to have laborsaving, easy to operate characteristics.If but abnormal conditions appear in the hydraulic pressure of hydraulic pressure, pneumatic actuating device, pneumatic linear actuator or when hindering the operation of valve owing to the shortage of dynamic medium, piston rod can't normally move, and just can't pass through the shifting fork mechanism rotation valve rod, will affect the butterfly valve opening and closing.At this moment, just can't realize such as needs butterfly valve opening and closing.Obviously, the prior art of butterfly valve hydraulic pressure, pneumatic actuating device can not solve the emergency driving problem of butterfly valve.
The model utility content
The utility model is for the deficiencies in the prior art, proposes a kind of simple in structurely, easy to operate, can satisfy the emergent Effector that requires that opens and closes of butterfly valve.
The utility model is achieved through the following technical solutions technical goal.
Adopt the manual-operated emergent butterfly valve drive unit of lead screw transmission, it is comprised of translation mechanism, shifting fork mechanism and the drive unit housing of oil hydraulic cylinder or air cylinder driven, described translation mechanism is comprised of oil hydraulic cylinder or cylinder assembly, piston rod, described shifting fork mechanism is comprised of shifting block, shift fork, driving key, valve rod, its improvements are: increase by a helical moving mechanism, be comprised of small handwheel, driving handwheel, nut, driving leading screw.
The opening of described shift fork lower end and the fixing pin Spielpassung on the shifting block; Endoporus and the valve rod axle head cylindrical interference fit of shift fork upper end.
Described oil hydraulic cylinder or cylinder assembly, piston rod central axis and driving leading screw central axis are coaxial.
Described piston rod left end outside thread is with to drive leading screw right-hand member internal thread diameter, pitch, rotation direction identical, and piston rod left end outside thread is relative with driving leading screw right-hand member internal thread.
After described piston rod left end outside thread and the driving leading screw right-hand member screw-internal thread fit, by the rotary actuation handwheel, the driving leading screw is moved, driving the screw-rod-driven and piston bar moves, piston rod drives shifting block and moves, shifting block rotates by shift fork and driving key actuate valve stem, thereby realizes the opening and closing of butterfly valve.
The utility model compared with prior art has following good effect:
1. simple in structure, easy to operate;
2. can solve the emergency driving problem of butterfly valve hydraulic pressure, pneumatic actuating device.
Description of drawings
Fig. 1 is structural representation of the present utility model (butterfly valve is in opening state).
Fig. 2 is structural representation of the present utility model (butterfly valve mediate state).
Fig. 3 is the A-A profile after Fig. 2 piston rod left end outside thread and the driving leading screw right-hand member screw-internal thread fit.
Fig. 4 is structural representation of the present utility model (butterfly valve is in closed state).
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and in conjunction with the embodiments for the below.
The manual-operated emergent butterfly valve drive unit of employing lead screw transmission shown in the drawings, it is comprised of translation mechanism, shifting fork mechanism and the drive unit housing 5 of oil hydraulic cylinder or air cylinder driven, translation mechanism is comprised of oil hydraulic cylinder or cylinder assembly 11, piston rod 10, and shifting fork mechanism is comprised of shifting block 9, shift fork 8, driving key 7, valve rod 6.1; Increase by a helical moving mechanism, formed by small handwheel 1, driving handwheel 2, nut 3, driving leading screw 4.
The opening of shift fork 8 lower ends and the fixing pin Spielpassung on the shifting block 9; The endoporus of shift fork 8 upper ends and valve rod 6.1 axle head cylindrical interference fit.
Oil hydraulic cylinder or cylinder assembly 11, piston rod 10 central axis and driving leading screw 4 central axis are coaxial.
Piston rod 10 left end outside threads are with to drive leading screw 4 right-hand member internal thread diameter, pitch, rotation direction identical, and piston rod 10 left end outside threads are relative with driving leading screw 4 right-hand member internal threads.
After piston rod 10 left end outside threads and the driving leading screw 4 right-hand member screw-internal thread fit, by rotary actuation handwheel 2, driving leading screw 4 is moved, driving leading screw 4 piston rod 10 moves, piston rod 10 drives shifting block 9 and moves, shifting block 9 rotates by shift fork 8 and driving key 7 actuate valve stem 6.1, thereby realizes the opening and closing of butterfly valve.
The concrete emergency operation of the present embodiment is as follows:
1. cut off entering of drive unit dynamic medium (hydraulic oil or gas);
2. open valve 11.1 and the valve 11.2 at oil hydraulic cylinder on the drive unit or cylinder two ends, oil hydraulic cylinder or cylinder inner cavity are in communication with the outside, discharge hydraulic oil or the gas of oil hydraulic cylinder or cylinder inner cavity;
3. rotation small handwheel 1 will drive leading screw 4 near piston rod 10(Fig. 1 position); Continue rotation small handwheel 1, will drive leading screw 4 and tighten (Fig. 2 position) fully with piston rod 10;
4. turn clockwise and drive handwheel 2, throttle down;
After emergency operation is finished, unclamp piston rod 10 and the connection that is connected leading screw 4, it is recalled initial position.
Claims (5)
1. manual-operated emergent butterfly valve drive unit that adopts lead screw transmission, it is comprised of translation mechanism, shifting fork mechanism and the drive unit housing (5) of oil hydraulic cylinder or air cylinder driven, described translation mechanism is comprised of oil hydraulic cylinder or cylinder assembly (11), piston rod (10), described shifting fork mechanism is comprised of shifting block (9), shift fork (8), driving key (7), valve rod (6.1), it is characterized in that: increase by a helical moving mechanism, formed by small handwheel (1), driving handwheel (2), nut (3), driving leading screw (4).
2. the manual-operated emergent butterfly valve drive unit of employing lead screw transmission according to claim 1 is characterized in that: the opening of described shift fork (8) lower end and the fixing pin Spielpassung on the shifting block (9); Endoporus and valve rod (6.1) the axle head cylindrical interference fit of described shift fork (8) upper end.
3. the manual-operated emergent butterfly valve drive unit of employing lead screw transmission according to claim 1 is characterized in that: described oil hydraulic cylinder or cylinder assembly (11), piston rod (10) central axis and to drive leading screw (4) central axis coaxial.
4. the manual-operated emergent butterfly valve drive unit of employing lead screw transmission according to claim 1, it is characterized in that: described piston rod (10) left end outside thread is with to drive leading screw (4) right-hand member internal thread diameter, pitch, rotation direction identical, and piston rod (10) left end outside thread is relative with driving leading screw (4) right-hand member internal thread.
5. the manual-operated emergent butterfly valve drive unit of employing lead screw transmission according to claim 1, it is characterized in that: after described piston rod (10) left end outside thread and driving leading screw (4) the right-hand member screw-internal thread fit, by rotary actuation handwheel (2), make driving leading screw (4) mobile, drive leading screw (4) piston rod (10) mobile, it is mobile that piston rod (10) drives shifting block (9), shifting block (9) rotates by shift fork (8) and driving key (7) actuate valve stem (6.1), thereby realizes the opening and closing of butterfly valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220361178 CN202868007U (en) | 2012-07-25 | 2012-07-25 | Manual emergency butterfly valve driving device using lead screw drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220361178 CN202868007U (en) | 2012-07-25 | 2012-07-25 | Manual emergency butterfly valve driving device using lead screw drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202868007U true CN202868007U (en) | 2013-04-10 |
Family
ID=48034727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220361178 Expired - Fee Related CN202868007U (en) | 2012-07-25 | 2012-07-25 | Manual emergency butterfly valve driving device using lead screw drive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202868007U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838341A (en) * | 2017-04-13 | 2017-06-13 | 江苏通达船用阀泵有限公司 | A kind of hydraulic butterfly valve control device |
-
2012
- 2012-07-25 CN CN 201220361178 patent/CN202868007U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838341A (en) * | 2017-04-13 | 2017-06-13 | 江苏通达船用阀泵有限公司 | A kind of hydraulic butterfly valve control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20130725 |