CN103899830B - Intelligent tape jam diagnosis pneumatic actuator - Google Patents
Intelligent tape jam diagnosis pneumatic actuator Download PDFInfo
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- CN103899830B CN103899830B CN201410136776.6A CN201410136776A CN103899830B CN 103899830 B CN103899830 B CN 103899830B CN 201410136776 A CN201410136776 A CN 201410136776A CN 103899830 B CN103899830 B CN 103899830B
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- tracer
- potentiometer
- support
- assembly
- pneumatic actuator
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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
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
- F16K31/1262—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like one side of the diaphragm being spring loaded
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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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a kind of intelligent tape jam diagnosis pneumatic actuator, belong to the modulating valve fault self-diagnosis technical field of automation equipment.The present invention includes support and pressure membrane room, be movably installed with push rod in support, support has air pressure signal entrance and cutting ferrule straight coupling, air pressure signal entrance is connected with pressure membrane room, push rod there is feedback component I, the feedback board I of feedback component I has elongated hole I; Support is equipped with tracer, have on feedback component II and potentiometer assembly in tracer, the roller bearing of feedback component II stretches in the elongated hole I of feedback board I, the hollow tubular that pressure membrane room is connected is had in the seal casinghousing of tracer, hollow tubular there is pressure transducer, have shielding box assembly in tracer, shielding box assembly is built with microprocessor, and pressure transducer and potentiometer assembly are electrically connected with microprocessor.The present invention can realize on-line checkingi, pinpoints the problems in advance, and assurance device normally runs, and reduces cost.
Description
Technical field
The present invention relates to a kind of modulating valve Pneumatic actuator, belong to the modulating valve fault self-diagnosis technical field of automation equipment.
Background technique
At present, the fault diagnosis of modulating valve industry realizes by parking maintenance mostly, and formulate valve by instrument department and overhaul planning, carry out parking maintenance by the cycle to the modulating valve on device, general 1-3 can overhaul one time to the modulating valve on whole device.Be specially: contact professional overhauling company and sign maintenance contract-scene and watch and need overhaul modulating valve situation-formulations maintenance solution-estimate preparation standby redundancy--technique turned letter--overhauling company that stop-sets aside some time and move into Overhaul site-safety education-valve and roll off the production line-transport to Overhaul site-test valve static characteristic and reading control opens and inspect valve, inspection damage of components situation-maintenance or replacing standby redundancy-re-assembly valve-carry out pressure test and static characteristic test-qualified after transport to device scene-valve and to reach the standard grade reset-instrument uniting and adjustment-water transport-automotive-driving.Although traditional parking maintenance scheme thoroughly can eliminate failsafe valve, there is following shortcoming: specific aim is not strong, blanket type inspection, and the cycle is long, takes time and effort, and cost is high; After pinpointing the problems, handling failure afterwards, affects the normal operation of device; Valve quantity is large, and standby redundancy preparation is difficult to complete, affects valve repair schedule or quality.Although and the intelligent valve positioner in prior art with on-line checkingi function can on-line checkingi failsafe valve, valve must mate with HART or other communications protocol, and cost is high, poor universality; Adopt dependent position transducer, as used online measuring ability, must adopt intelligent valve positioner, cost is high.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art part, the invention provides a kind of intelligent tape jam diagnosis pneumatic actuator, can realize on-line checkingi, pinpoint the problems in advance, shoot the arrow at the target, carry out technological preparation in advance, assurance device normally runs, and reduces cost.
The present invention is achieved through the following technical solutions: a kind of intelligent tape jam diagnosis pneumatic actuator, it comprises the support be connected with modulating valve, the push rod be connected with spool is movably installed with in support, pressure membrane room is had above described support, pressure membrane room is primarily of upper membrane cover and lower membrane cover is affixed forms, diaphragm is had between upper membrane cover and lower membrane cover, described pressure membrane room is divided into upper film chamber and lower film room by diaphragm, the pallet be close to diaphragm is had above described diaphragm, between the top of pallet and described upper membrane cover bottom, multiple spring is installed, described pressure membrane indoor are stretched on the top of described push rod, described pallet is fixed on the top of push rod, described support there is air pressure signal entrance, air pressure signal entrance is connected with described pressure membrane room by gas circuit, it is characterized in that: described push rod has feedback component I, feedback component I comprises one or more feedback board I, feedback board I is fixedly connected on described push rod, feedback board I there is elongated hole I, described support is equipped with tracer, tracer comprises the seal casinghousing be made up of base and clamshell, rotatingly on base be fixed with rotating shaft, the outer end of rotating shaft is fixed with feedback component II, feedback component II comprises the feedback board II be fixed in rotating shaft, feedback board II is connected with roller bearing, roller bearing stretches in the elongated hole I of described feedback board I, the inner of described rotating shaft is provided with gear I, potentiometer assembly described base is equipped with, potentiometer assembly there is gear II, described gear I is meshed with gear II, the standard pitch diameter of gear I is greater than the standard pitch diameter of gear II, the seal casinghousing of described tracer there is pipe joint, described support there is the cutting ferrule straight coupling be connected with described air pressure signal entrance, tracheae is connected with between cutting ferrule straight coupling and described pipe joint, hollow tubular is had in described tracer, hollow tubular is connected with described pipe joint, hollow tubular there is pressure transducer, shielding box assembly is had in described tracer, shielding box assembly is built with the microprocessor for the treatment of pressure signal and position signal, described pressure transducer and potentiometer assembly are electrically connected with described microprocessor.
Described microprocessor is connected with storage device.
Described tracer and described support one-body molded.
Described tracer and described support split are arranged, and are connected with connecting plate between described tracer and described support, connecting plate have flexible connection assembly described tracer and described support are fixed together.
Described tracer there is attachment post with holes, described support there is connection boss with threaded hole, described connecting plate is " L " shape connecting plate, connecting plate is manufactured with mounting hole, and connecting plate is connected between described attachment post with holes and connection boss with threaded hole by screw assembly.
Described pallet is fastened on the top of push rod by adjustment sleeve and fastener assembly, between described push rod and support, axle sleeve is housed.
Described base has axle bed, and described rotating shaft is arranged in described axle bed, between described rotating shaft and axle bed, Nonlubricated bearing is housed, and dust-proof seal ring is equipped with at the outer end opening place of described axle bed.
Described feedback board II has elongated hole II, and described roller bearing comprises bearing pin, and bearing pin is equipped with roller, there is back-up ring the front end of bearing pin, the rear end of bearing pin is fixed with stud, and stud is fixed on described elongated hole II by nuts and washers, and the bearing pin between described roller and packing ring is equipped with preloading spring.
Described feedback board II there is the bending of " U " shape, two of the bending of " U " shape parallel straight plates are manufactured with the not rounded attachment hole passed for described rotating shaft, the axle head of described rotating shaft is made into the shape suitable with described not rounded attachment hole, described " U " shape bending is manufactured with locking slot, the two ends of locking slot are connected to described not rounded attachment hole, at " U " shape bending part, the turnbuckle assembly for clamping described locking slot are housed.
Described base is equipped with locating stud, on locating stud, plate is equipped with in activity, described potentiometer assembly is equipped with in one end of plate, the other end of plate is equipped with handle, the torsion spring that plate is resetted described locating stud is equipped with, one end of torsion spring is clamped in described plate, and the other end of torsion spring is clamped on described base; Described potentiometer assembly comprises potentiometer, and the potentiometer cover be connected in plate is equipped with in potentiometric outer ring, and it is outer and be connected with described gear II that potentiometer cover is stretched out in potentiometric potentiometer rotating shaft.
The invention has the beneficial effects as follows:
1, control signal of the present invention (pressure signal) passage is decided, pressure, stroke (position), time etc. about modulating valve work pass through pressure transducer, position sensor feedback to CPU, automatically detect through intelligent tape jam diagnosis pneumatic actuator and recorded and be stored in CPU, form initial data; The performance index data of requirement also manually can be set, as intrinsic error, lag time, movement speed etc., form initial data.In modulating valve running, as long as instant service data to be compared with initial data, analyze (automatically), just can judge the situation that modulating valve runs and fault.For the situation exceeding performance index initial data limiting value, system meeting automatic alarm, and report produces the type of fault, in order to rapid-maintenance.
The present invention's intelligent tape jam diagnosis pneumatic actuator receives control room signal (pressure signal or electrical signal), electrical signal can be converted to pressure signal by positioning work piece, when control signal raises, actuator's film chamber pressure raises, spring stress compresses, push rod is driven to produce displacement (upwards) by pallet, be fixed on feedback component I on push rod with push rod displacement, feedback component I is rotated counterclockwise by roller bearing motional feedback assembly II, the rotating shaft be fixed together with feedback component II will be rotated thereupon, driven gear I synchronous axial system simultaneously, gear I driven gear II rotates, gear II will drive potentiometric axle to rotate, the change in location detected is transformed into electrical signal and feeds back to CPU on circuit board module by potentiometer, CPU is according to formula operation, the just various performance parameters of the adjusted valve relevant positions operation of energy.
Intelligent tape jam diagnosis pneumatic actuator receives control room signal, while making actuator produce displacement, the pressure of actuator's film room is by cutting ferrule straight coupling, pipe joint and tracheae, hollow tubular input to pressure transducer, pressure transducer receives the change of pressure, the change transitions of pressure will be become electrical signal to feed back to CPU on circuit board module, CPU, just can the various performance parameters run of adjusted valve whether about pressure change according to pressure set points computing.
CPU carries out computing according to the corresponding relation of pressure Force location, with regard to the parameters that the adjusted valve whether about pressure of energy and position run, thus determines whether valve can normally work, and the contingent fault of diagnosis valve of foresight.
2, compared with traditional parking maintenance technology, the property of the present invention is directed to is strong, only keeps in repair problematic valve, cost is low, on-line checkingi, pinpoints the problems in advance, shoot the arrow at the target, carry out technological preparation in advance, assurance device normally runs, scope is little, standby redundancy promptly and accurately, guarantees maintenance of valve progress and quality, dynamically grasps the runnability of each valve, predict the valve that may break down in advance, strive for the cycle of ordering standby redundancy.
3, compared with having the intelligent valve positioner of on-line checkingi function, the present invention is not by the restriction of the communications protocol such as HART, FF, detecting data is stored in memory card, and directly can read and detect data and diagnostic result, cost is low, highly versatile, valve does not need to be furnished with intelligent positioner or common positioning work piece specially, complete independent operating, convenient, flexible, the pneumatic actuator of intelligent tape jam diagnosis has integral type, has split type, can mate with any type of valve, unrestricted, practical.
Accompanying drawing explanation
The present invention is further described according to drawings and embodiments below.
Fig. 1 is overall structure schematic diagram of the present invention, and in figure, tracer and support are integral type structure;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is split-type structural schematic diagram of the present invention;
Fig. 4 is the B-B sectional view of Fig. 3;
Fig. 5 is tracer structural representation of the present invention;
Fig. 6 is the plan view of Fig. 5;
Fig. 7 is the sectional view (clamshell and shielding box assembly do not draw) of the D-D of Fig. 5
Fig. 8 is the right elevation of Fig. 5;
Fig. 9 is the C direction view of Fig. 5;
Figure 10 is that the present invention feeds back part assembly I structural representation;
Figure 11 is the plan view of Figure 10;
Figure 12 is the structural representation of feedback component II of the present invention;
Figure 13 is the plan view of Figure 12;
Figure 14 is the structural representation of potentiometer assembly of the present invention;
Figure 15 is the E-E sectional view of Figure 14;
Figure 16 is the plan view of Figure 14.
In figure: a, modulating valve, b, air pressure signal entrance, c, gas circuit, 1, support, 2, feedback part assembly I, 2-1, elongated hole I, 2-2, feedback board I, 3, axle sleeve, 4, lower membrane cover, 5, upper membrane cover, 6, diaphragm, 7, pallet, 8, spring, 9, adjustment sleeve and fastener assembly, 10, push rod, 11, cutting ferrule straight coupling, 12, tracheae, 13, tracer, 13-1, gear I, 13-2, locating stud, 13-3, feedback component II, 13-3-1, stud, 13-3-2, nut, 13-3-3, feedback board II, 13-3-4, packing ring, 13-3-5, preloading spring, 13-3-6, roller bearing, 13-3-7, back-up ring, 13-3-8, turnbuckle assembly, 13-3-9, elongated hole II, 13-3-10, not rounded attachment hole, 13-3-11, bearing pin, 13-3-12, roller, 13-3-13, locking slot, 13-4, rotating shaft, 13-5, limiting gasket, 13-6, dust-proof seal ring, 13-7, Nonlubricated bearing, 13-8, base, 13-8-1, axle bed, 13-9, clamshell, 13-10, shielding box assembly, 13-11, pressure transducer, 13-12, torsion spring, 13-13, hollow tubular, 13-14, pipe joint, 13-15, potentiometer assembly, 13-15-1, potentiometer cover, 13-15-2, potentiometer, 13-15-3, gear II, 13-16, plate, 13-17, handle, 14, attachment post with holes, 15, connecting plate, 16, connection boss with threaded hole.
Embodiment
Below in conjunction with embodiment, the present invention is further described.
One as shown in drawings intelligent tape jam diagnosis pneumatic actuator, it comprises the support 1 be connected with modulating valve a, the push rod 10 be connected with spool is movably installed with in support 1, pressure membrane room is had above described support 1, pressure membrane room is primarily of upper membrane cover 5 and lower membrane cover 4 is affixed forms, diaphragm 6 is had between upper membrane cover and lower membrane cover, described pressure membrane room is divided into upper film chamber and lower film room by diaphragm 6, the pallet 7 be close to diaphragm is had above described diaphragm, between the top of pallet 7 and described upper membrane cover 5 bottom, multiple spring 8 is installed, described pressure membrane indoor are stretched on the top of described push rod 10, described pallet 7 is fixed on the top of push rod 10, described support 1 there is air pressure signal entrance b, air pressure signal entrance is connected with described pressure membrane room by gas circuit c, described push rod 10 there is feedback component I 2, feedback component I 2 comprises one or more feedback board I 2-2, feedback board I 2-2 is fixedly connected on described push rod 10, feedback board I 2-2 there is elongated hole I 2-1, tracer 13 described support is equipped with, tracer 13 comprises the seal casinghousing be made up of base 13-8 and clamshell 13-9, base 13-8 is provided with rotating rotating shaft 13-4, the outer end of rotating shaft 13-4 is fixed with feedback component II 13-3, feedback component II 13-3 comprises feedback board II 13-3-3 be fixed on rotating shaft 13-4, feedback board II 13-3-3 is connected with roller bearing 13-3-6, roller bearing 13-3-6 stretches in elongated hole I 2-1 of described feedback board I 2-2, the inner of described rotating shaft 13-4 is provided with gear I 13-1, potentiometer assembly 13-15 described base 13-8 is equipped with, potentiometer assembly 13-15 there is gear II 13-15-3, described gear I 13-1 is meshed with gear II 13-15-3, the standard pitch diameter of gear I 13-1 is greater than the standard pitch diameter of gear II 13-15-3, the seal casinghousing of described tracer 13 there is pipe joint 13-14, described support 1 there is the cutting ferrule straight coupling 11 be connected with described air pressure signal entrance b, tracheae 12 is connected with between cutting ferrule straight coupling 11 and described pipe joint 13-14, hollow tubular 13-13 is had in described tracer 13, hollow tubular 13-13 is connected with described pipe joint 13-14, hollow tubular 13-13 there is pressure transducer 13-11, shielding box assembly 13-10 is had in described tracer 13, shielding box assembly 13-10 is built with the microprocessor for the treatment of pressure signal and position signal, described pressure transducer 13-11 and potentiometer assembly 13-15 is electrically connected with described microprocessor.
The change in location detected is transformed into electrical signal and feeds back to microprocessor for the treatment of pressure signal and position signal in shielding box assembly 13-10 by potentiometer assembly 13-15.
The pressure change transitions detected becomes electrical signal to feed back to microprocessor for the treatment of pressure signal and position signal in shielding box assembly 13-10 by pressure transducer 13-11.
Described microprocessor is connected with storage device.Storage device can be a kind of plug-in type data storage card, for recording related data, and can regularly take out, and is inserted in computer by plug-in type data storage card and carries out data analysis to investigate fault.
Described tracer 13 is one-body molded with described support 1.
As shown in Figure 3, Figure 4, described tracer 13 is arranged with described support 1 split, be connected with connecting plate 15 between described tracer 13 and described support 1, connecting plate 15 have flexible connection assembly be fixed together with described support 1 by described tracer 13.
Described tracer 13 there is attachment post 14 with holes, corresponding tapped hole can be set on the base of tracer, or tapped hole is set on attachment post 14; Described support 1 there is connection boss 16 with threaded hole, described connecting plate 15 is " L " shape connecting plate, connecting plate 15 is manufactured with the mounting hole corresponding with the tapped hole on described tracer 13 and support 1, connecting plate 15 is connected between described attachment post 14 with holes and connection boss 16 with threaded hole by screw assembly.
As shown in Figure 3, Figure 4, described pallet 7 is fastened on the top of push rod 10 by adjustment sleeve and fastener assembly 9, between described push rod 10 and support 1, axle sleeve 3 is housed.
As shown in Fig. 5 ~ Fig. 9, described base 13-8 there is axle bed 13-8-1, described rotating shaft 13-4 is arranged in described axle bed 13-8-1, between described rotating shaft 13-4 and axle bed 13-8-1, Nonlubricated bearing 13-7 is housed, dust-proof seal ring 13-6 is equipped with at the outer end opening place of described axle bed 13-8-1.
As shown in Figure 12,13, described feedback board II 13-3-3 there is elongated hole II 13-3-9, described roller bearing 13-3-6 comprises bearing pin 13-3-11, roller 13-3-12 bearing pin is equipped with, there is back-up ring 13-3-7 the front end of bearing pin 13-3-11, the rear end of bearing pin 13-3-11 is fixed with stud 13-3-1, stud 13-3-1 is fixed on described elongated hole II 13-3-9 by nut 13-3-2 and packing ring 13-3-4, and the bearing pin 13-3-11 between described roller 13-3-12 and packing ring 13-3-4 is equipped with preloading spring 13-3-5.
Described feedback board II 13-3-3 there is the bending of " U " shape, two of the bending of " U " shape parallel straight plates are manufactured with the not rounded attachment hole 13-3-10 passed for described rotating shaft 13-4, shape can be as shown in figure 13, this not rounded attachment hole can drive rotating shaft 13-4 to rotate, the axle head of described rotating shaft 13-4 is made into the shape suitable with described not rounded attachment hole 13-3-10, described " U " shape bending is manufactured with locking slot 13-3-13, the two ends of locking slot 13-3-13 are connected to described not rounded attachment hole 13-3-10, at " U " shape bending part, the turnbuckle assembly 13-3-8 for clamping described locking slot 13-3-13 is housed.
As shown in Fig. 5, Fig. 7, Figure 14 ~ 16, described base 13-8 is equipped with locating stud 13-2, on locating stud 13-2, plate 13-16 is equipped with in activity, described potentiometer assembly 13-15 is equipped with in one end of plate 13-16, the other end of plate 13-16 is equipped with handle 13-17, described locating stud 13-2 is equipped with the torsion spring 13-12 that plate 13-16 is resetted, one end of torsion spring 13-12 is clamped on described plate 13-16, and the other end of torsion spring 13-12 is clamped on described base 13-8; Described potentiometer assembly 13-15 comprises potentiometer 13-15-2, the potentiometer cover 13-15-1 be connected on plate 13-16 is equipped with in the outer ring of potentiometer 13-15-2, it is outer and be connected with described gear II 13-15-3 that potentiometer cover 13-15-1 is stretched out in the potentiometer rotating shaft of potentiometer 13-15-2, and potentiometric model can adopt FCP22R.
Working principle of the present invention is: control signal of the present invention (pressure signal) passage is decided, pressure, stroke (position), time etc. about modulating valve work pass through pressure transducer, position sensor feedback to CPU, automatically detect through intelligent tape jam diagnosis pneumatic actuator and recorded and be stored in CPU, form initial data; The performance index data of requirement also manually can be set, as intrinsic error, lag time, movement speed etc., form initial data.In modulating valve running, as long as instant service data to be compared with initial data, analyze (automatically), just can judge the situation that modulating valve runs and fault.For the situation exceeding performance index initial data limiting value, system meeting automatic alarm, and report produces the type of fault, in order to rapid-maintenance.
The present invention's intelligent tape jam diagnosis pneumatic actuator receives control room signal (pressure signal or electrical signal), electrical signal can be converted to pressure signal by positioning work piece, when control signal raises, actuator's film chamber pressure raises, spring stress compresses, push rod is driven to produce displacement (upwards) by pallet, be fixed on feedback component I on push rod with push rod displacement, feedback component I is rotated counterclockwise by roller bearing motional feedback assembly II, the rotating shaft be fixed together with feedback component II will be rotated thereupon, driven gear I synchronous axial system simultaneously, gear I driven gear II rotates, gear II will drive potentiometric axle to rotate, the change in location detected is transformed into electrical signal and feeds back to CPU on circuit board module by potentiometer, CPU is according to formula (1) computing below, the just various performance parameters of the adjusted valve relevant positions operation of energy.The performance parameter of modulating valve has limit of intrinsic error, return difference, dies, rated travel deviation, put deviation all the time.
δi=（li-Li）÷L×100%……………………（1）
In formula:
δ i---the error of i-th;
Li---the traveled distance of i-th, unit is millimeter (mm);
Li---the theoretical stroke of i-th, unit is millimeter (mm);
L---rated travel, unit is millimeter (mm).
Intelligent tape jam diagnosis pneumatic actuator receives control room signal, while making actuator produce displacement, the pressure of actuator's film room inputs to pressure transducer by cutting ferrule straight coupling, pipe joint and tracheae, hollow tubular, pressure transducer receives the change of pressure, the change transitions of pressure will be become electrical signal to feed back to CPU on circuit board module, CPU, according to pressure set points computing, just can change the various performance parameters run by adjusted valve whether about pressure.
CPU carries out computing according to the corresponding relation of pressure Force location, with regard to the parameters that the adjusted valve whether about pressure of energy and position run, thus determines whether valve can normally work, and the contingent fault of diagnosis valve of foresight.
The modulating valve of the present invention's intelligent tape jam diagnosis pneumatic actuator comprehensively can also to detect the frictional force of the total travel time of modulating valve, work, time lag, valve base sealing power, aperture frequency of okperation and time etc., full and accurate data are provided, pass through HART, just carry out remotely modifying parameter by computer, the safe and effective operation of ensuring equipment, revolutionize the traditional mode first having problem to solve again, start the new approaches utilizing advanced technology foresight to deal with problems.
Claims (10)
1. an intelligent tape jam diagnosis pneumatic actuator, it comprises the support (1) be connected with modulating valve (a), the push rod (10) be connected with spool is movably installed with in support (1), there is pressure membrane room described support (1) top, pressure membrane room is primarily of upper membrane cover (5) and lower membrane cover (4) is affixed forms, diaphragm (6) is had between upper membrane cover and lower membrane cover, described pressure membrane room is divided into upper film chamber and lower film room by diaphragm (6), the pallet (7) be close to diaphragm is had above described diaphragm, between the top of pallet (7) and described upper membrane cover (5) bottom, multiple spring (8) is installed, described pressure membrane indoor are stretched on the top of described push rod (10), described pallet (7) is fixed on the top of push rod (10), described support (1) there is air pressure signal entrance (b), air pressure signal entrance is connected with described pressure membrane room by gas circuit (c), it is characterized in that: described push rod (10) has feedback component I (2), feedback component I (2) comprises one or more feedback board I (2-2), feedback board I (2-2) is fixedly connected on described push rod (10), feedback board I (2-2) there is elongated hole I (2-1), tracer (13) described support is equipped with, tracer (13) comprises the seal casinghousing be made up of base (13-8) and clamshell (13-9), base (13-8) is provided with rotating shaft (13-4), the outer end of rotating shaft (13-4) is fixed with feedback component II (13-3), feedback component II (13-3) comprises the feedback board II (13-3-3) be fixed in rotating shaft (13-4), feedback board II (13-3-3) is connected with roller bearing (13-3-6), roller bearing (13-3-6) stretches in the elongated hole I (2-1) of described feedback board I (2-2), the inner of described rotating shaft (13-4) is provided with gear I (13-1), described base (13-8) is equipped with potentiometer assembly (13-15), potentiometer assembly (13-15) there is gear II (13-15-3), described gear I (13-1) is meshed with gear II (13-15-3), the standard pitch diameter of gear I (13-1) is greater than the standard pitch diameter of gear II (13-15-3), the seal casinghousing of described tracer (13) there is pipe joint (13-14), described support (1) there is the cutting ferrule straight coupling (11) be connected with described air pressure signal entrance (b), tracheae (12) is connected with between cutting ferrule straight coupling (11) and described pipe joint (13-14), hollow tubular (13-13) is had in described tracer (13), hollow tubular (13-13) is connected with described pipe joint (13-14), hollow tubular (13-13) there is pressure transducer (13-11), shielding box assembly (13-10) is had in described tracer (13), shielding box assembly (13-10) is built with the microprocessor for the treatment of pressure signal and position signal, described pressure transducer (13-11) and potentiometer assembly (13-15) are electrically connected with described microprocessor.
2. intelligent tape jam diagnosis pneumatic actuator according to claim 1, is characterized in that: described microprocessor is connected with storage device.
3. intelligent tape jam diagnosis pneumatic actuator according to claim 1, is characterized in that: described tracer (13) is one-body molded with described support (1).
4. intelligent tape jam diagnosis pneumatic actuator according to claim 1, it is characterized in that: described tracer (13) and described support (1) split are arranged, be connected with connecting plate (15) between described tracer (13) and described support (1), connecting plate (15) have flexible connection assembly described tracer (13) and described support (1) are fixed together.
5. intelligent tape jam diagnosis pneumatic actuator according to claim 4, it is characterized in that: described tracer (13) has attachment post (14) with holes, described support (1) there is connection boss (16) with threaded hole, described connecting plate (15) is " L " shape connecting plate, (15) are manufactured with mounting hole to connecting plate, and connecting plate (15) is connected between described attachment post (14) with holes and connection boss (16) with threaded hole by screw assembly.
6. intelligent tape jam diagnosis pneumatic actuator according to claim 1, it is characterized in that: described pallet (7) is fastened on the top of push rod (10) by adjustment sleeve and fastener assembly (9), between described push rod (10) and support (1), axle sleeve (3) is housed.
7. intelligent tape jam diagnosis pneumatic actuator according to claim 1, it is characterized in that: described base (13-8) has axle bed (13-8-1), described rotating shaft (13-4) is arranged in described axle bed (13-8-1), between described rotating shaft (13-4) and axle bed (13-8-1), Nonlubricated bearing (13-7) is housed, dust-proof seal ring (13-6) is equipped with at the outer end opening place of described axle bed (13-8-1).
8. intelligent tape jam diagnosis pneumatic actuator according to claim 1, it is characterized in that: described feedback board II (13-3-3) has elongated hole II (13-3-9), described roller bearing (13-3-6) comprises bearing pin (13-3-11), roller (13-3-12) bearing pin is equipped with, there is back-up ring (13-3-7) front end of bearing pin (13-3-11), the rear end of bearing pin (13-3-11) is fixed with stud (13-3-1), stud (13-3-1) is fixed on described elongated hole II (13-3-9) by nut (13-3-2) and packing ring (13-3-4), bearing pin (13-3-11) between described roller (13-3-12) and packing ring (13-3-4) is equipped with preloading spring (13-3-5).
9. the intelligent tape jam diagnosis pneumatic actuator according to claim 1 or 8, it is characterized in that: described feedback board II (13-3-3) has the bending of " U " shape, two of the bending of " U " shape parallel straight plates are manufactured with the not rounded attachment hole (13-3-10) passed for described rotating shaft (13-4), the axle head of described rotating shaft (13-4) is made into the shape suitable with described not rounded attachment hole (13-3-10), described " U " shape bending is manufactured with locking slot (13-3-13), the two ends of locking slot (13-3-13) are connected to described not rounded attachment hole (13-3-10), at " U " shape bending part, the turnbuckle assembly (13-3-8) for clamping described locking slot (13-3-13) is housed.
10. intelligent tape jam diagnosis pneumatic actuator according to claim 1, it is characterized in that: described base (13-8) is equipped with locating stud (13-2), plate (13-16) is equipped with in the upper activity of locating stud (13-2), described potentiometer assembly (13-15) is equipped with in one end of plate (13-16), the other end of plate (13-16) is equipped with handle (13-17), the torsion spring (13-12) that plate (13-16) is resetted described locating stud (13-2) is equipped with, one end of torsion spring (13-12) is clamped in described plate (13-16), the other end of torsion spring (13-12) is clamped on described base (13-8), described potentiometer assembly (13-15) comprises potentiometer (13-15-2), the potentiometer cover (13-15-1) be connected in plate (13-16) is equipped with in the outer ring of potentiometer (13-15-2), and the potentiometer rotating shaft of potentiometer (13-15-2) stretches out potentiometer cover (13-15-1) and be connected with described gear II (13-15-3) outward.
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| CN201410136776.6A CN103899830B (en) | 2014-04-04 | 2014-04-04 | Intelligent tape jam diagnosis pneumatic actuator |
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| CN201410136776.6A CN103899830B (en) | 2014-04-04 | 2014-04-04 | Intelligent tape jam diagnosis pneumatic actuator |
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| CN103899830B true CN103899830B (en) | 2015-12-09 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104267238B (en) * | 2014-09-28 | 2017-02-08 | 江南工业集团有限公司 | Testing device for pneumatic actuator |
| CN105276280B (en) * | 2015-11-19 | 2018-03-20 | 徐州阿卡控制阀门有限公司 | Valve positioner with memory function and failsafe valve self-diagnosing method |
| CN105443846A (en) * | 2016-01-15 | 2016-03-30 | 浙江三方控制阀股份有限公司 | Actuating mechanism with self-sealing rolling diaphragm |
| WO2017147846A1 (en) * | 2016-03-03 | 2017-09-08 | Emerson Process Management, Valve Automation, Inc. | Methods and apparatus for automatically detecting the failure configuration of a pneumatic actuator |
| JP2018009655A (en) * | 2016-07-14 | 2018-01-18 | 日本電産サンキョー株式会社 | Driving force transmission mechanism and opening/closing member driving device |
| US11073442B2 (en) | 2017-12-21 | 2021-07-27 | Swagelok Company | Systems and methods for control and monitoring of actuated valves |
| CN109442083B (en) * | 2018-09-28 | 2023-08-22 | 无锡斯考尔自动控制设备有限公司 | Pneumatic film type actuating mechanism with adjustable minimum opening |
| CN109187002A (en) * | 2018-10-12 | 2019-01-11 | 徐州阿卡控制阀门有限公司 | Regulating valve on-line performance and fault detection analysis system |
| CN109780296A (en) * | 2019-03-25 | 2019-05-21 | 徐州化工机械有限公司 | A kind of linear motor valve positioner |
| CN112051756A (en) * | 2019-06-05 | 2020-12-08 | 大连中和聚能自动控制系统有限公司 | Pneumatic actuator fault diagnosis recorder |
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| US6015134A (en) * | 1993-06-28 | 2000-01-18 | Barber Industries Inc. | Pneumatic actuator assembly |
| US20030034465A1 (en) * | 2001-08-15 | 2003-02-20 | Cooper Cameron Corporation | Gate valve actuator with universal mounting arrangement |
| CN2572166Y (en) * | 2002-09-06 | 2003-09-10 | 徐州阿卡控制阀门有限公司 | Inner air supply regulation type pneuamtic executing mechanism |
| CN202302236U (en) * | 2011-09-29 | 2012-07-04 | 扬州电力设备修造厂 | Nuclear grade film type pneumatic actuating mechanism |
| CN203770808U (en) * | 2014-04-04 | 2014-08-13 | 徐州阿卡控制阀门有限公司 | Intelligent pneumatic actuator with fault diagnosis function |
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