CN105485406A

CN105485406A - Displacement measurement device for rectangular intelligent valve positioner

Info

Publication number: CN105485406A
Application number: CN201510924086.1A
Authority: CN
Inventors: 董全林; 朱天宇; 于薇
Original assignee: Beijing Institute Of Aeronautics Wenzhou Research Institute
Current assignee: Comsat Automation Group Co., Ltd
Priority date: 2015-12-11
Filing date: 2015-12-11
Publication date: 2016-04-13
Anticipated expiration: 2035-12-11
Also published as: CN105485406B

Abstract

The invention discloses a displacement measurement device for a rectangular intelligent valve positioner. A rotary disc (6A) in the displacement measurement device is installed above a large angular travel gear (6B), a small angular travel gear (6C) is installed below the large angular travel gear (6B), and a main shaft (6D) penetrates through holes in the centers of the rotary disc (6A), the large angular travel gear (6B) and the small angular travel gear (6C); and an elastic assembly (6E), an FA bearing (6F), an FB bearing (6G) and a shaft sealing ring (6H) are arranged on the main shaft (6D) in a sleeving manner. By means of the displacement measurement device, a potentiometer and a gear shifting support (8D) are combined with the large angular travel gear (6B) and the small angular travel gear (6C), a replaceable structure is adopted for achieving displacement measurement control over single-action and dual-action air cylinders, and therefore the control efficiency can be effectively improved, and the gas amount can be effectively saved.

Description

A kind of displacement measuring device of rectangular intelligent valve positioner

Technical field

The present invention relates to a kind of positioning means, more particularly, refer to a kind of rectangular intelligent valve positioner.Be utilize external air source to drive the stroke of cylinder promoting valve actuator, realize the positioning work piece of the control to adjustment type valve or switch valve aperture.

Background technique

The automatic control of production process is called for short process control, and it occupies extremely important status in the industrial production.The quality of process control is decided by Controlling Apparatus for Processes to a great extent, and it comprises transmitter, regulator, final controlling element and various sub controlling units etc.A kind of auxiliary control instrument is called valve positioner, it is the object that various countries are competitively studied, it determines the regulation quality of process control to a certain extent, and along with the development of process control level, positioning work piece also must development to meet the requirement of modern production to process control.

Valve positioner, pneumatic positioner valve, electropneumatic valve positioner and intelligent valve positioner is divided by structure, it is the main accessories of modulating valve, usual and pneumatic control valve supports the use, it accepts the output signal of regulator, then goes to control pneumatic control valve, when after modulating valve action with its output signal, the displacement of valve rod feeds back to valve positioner by mechanical device again, and valve position situation passes to Upper system by electrical signal.

The study hotspot of current positioning work piece is mainly intelligent valve positioner, and what the electropneumatic valve positioner of use adopted is mechanical type force balance principle, comes with some shortcomings and can not meet the needs of process control development.Intelligent valve positioner set machinery, electronics, communication and control theory knowledge and related software knowledge are intelligent artifacts interdisciplinary.At Military and civil fields such as chemical industry, pharmacy, electric power, material, scientific research, life science, mechanical industry, electronics industries, there is application prospect widely.

Summary of the invention

In order to the valve opening solving existing modulating valve can not effectively control, a kind of of the present invention's design is applicable to the intrinsic safety type, the rectangular intelligent valve positioner that drive pneumatic actuator.This positioning work piece controls the air inflow of external air source by pneumatic unit device 7, and compares with the displacement signal that displacement measuring device 6 and positioning device 8 feed back, thus realizes the control to adjustment type valve or switch valve aperture.Adopt universal sealing arrangements and special sealing ring to combine to external casing, adopt combination form of folding that each function block is realized interconnected, realize the control of single-acting and double-action pneumatic actuator.The positioning work piece of the present invention's design can realize linear displacement and angular displacement two kinds of metering systems, and effectively can improve control efficiency and save tolerance.

The present invention is a kind of displacement measuring device of rectangular intelligent valve positioner, and it includes rotating disc (6A), angle stroke gearwheel (6B), angle stroke small gear (6C), main shaft (6D), elastic component (6E), FA bearing (6F), FB bearing (6G), Simmer ring (6H);

The center of rotating disc (6A) is provided with FA central through bore (6A2), is provided with FA dome platform (6A21) and FB dome platform (6A22) in described FA central through bore (6A2); FA annular groove (6A23) between FA dome platform (6A21) and FB dome platform (6A22);

The upper disk surface plate (6A1) of rotating disc (6A) is provided with FA lightening recesses (6A11), FA countersunk head chamber (6A12); This FA countersunk head chamber (6A12) is for placing FA circlip (61);

The outer rim of the lower wall panel (6A3) of rotating disc (6A) is provided with tooth (6A31), and upper tooth (6A31) engages with the lower tooth (6B3) at angle stroke gearwheel (6B);

The below of rotating disc (6A) is provided with FA round platform (6A4), FA bores round platform (6A5), be provided with FA stiffening rib (6A6) between the outer wall of FA round platform (6A4) and lower wall panel (6A3), between the outer wall that the inwall of FA round platform (6A4) and FA bore round platform (6A5), be provided with FB stiffening rib (6A7); FB lightening recesses (6A8) between described FB stiffening rib (6A7);

The centre at angle stroke gearwheel (6B) is FB central through bore (6B8), and described FB central through bore (6B8) is passed for one end of main shaft (6D); The one end at angle stroke gearwheel (6B) is gearwheel fluted disc (6B1), the inwall (6B1-1) of this gearwheel fluted disc (6B1) is provided with the driving gear engaged with the driving gear (8F12) on gear shaft (8F), and the other end at angle stroke gearwheel (6B) is the outer convex (6B2) of gearwheel; The outer rim of described gearwheel fluted disc (6B1) is provided with external tooth form (6B1-1);

The A plate face (6B-1) at angle stroke gearwheel (6B) is outside in provided with lower tooth (6B3), the first cavity (6B4), the second cavity (6B5), the 3rd cavity (6B6), the 4th cavity (6B7); Described 3rd cavity (6B6) is for placing the FA round platform (6A4) of rotating disc (6A); Described second cavity (6B5) is tapered recess; Described second cavity (6B5) is installed for the FA round platform (6A4) of transition rotating disc (6A), realizes the motion of FA round platform (6A4) in the 3rd cavity (6B6) and is not interfered; Described 4th cavity (6B7) bores round platform (6A5) for the FA placing rotating disc (6A);

The B plate face (6B-2) at angle stroke gearwheel (6B) is outside in provided with convex (6B14) in the 7th cavity (6B10), the outer convex (6B2) of gearwheel, the 6th cavity (6B9), gearwheel; In described gearwheel, convex (6B14) is evenly distributed with FA and bores projection (6B11), FB cone projection (6B12), FC cone projection (6B13), described three cones projection (6B11,6B12,6B13) are placed in respectively with on convex (6C6) in the small gear at angle stroke small gear (6C), and it is spacing to be undertaken in circumference by FA declining lug (6C61), FB declining lug (6C62), FC declining lug (6C63); The inwall of the outer convex (6B2) of described gearwheel is provided with interior projection (6B22), and interior projection (6B22) is provided with blind hole (6B21), is provided with screw thread and inlays circle in this blind hole (6B21); Described interior projection (6B22) is placed in arcuate socket (6C21); Arcuate socket (6C21) coordinates with interior projection (6B22's), achieves angle stroke gearwheel (6B) and installs with the initial position at angle stroke small gear (6C);

The centre at angle stroke small gear (6C) is FC central through bore (6C3), and described FC central through bore (6C3) is passed for one end of main shaft (6D); The one end at angle stroke small gear (6C) is small gear fluted disc (6C1), and the other end at angle stroke small gear (6C) is the outer convex (6C2) of small gear;

In the outer rim of described small gear fluted disc (6C1), interval is evenly distributed with projection (6C1-1) and groove (6C1-2);

The outer convex (6C2) of described small gear is provided with arcuate socket (6C21), and this arcuate socket (6C21) is for placing the interior projection (6B22) at angle stroke gearwheel (6B); The outer edge surface of the outer convex (6C2) of described small gear is provided with outer projection (6C22), FA block (6C23) and FB block (6C24), utilize outer projection (6C22) and the wall contacts in the 6th chamber (6B9) at angle stroke gearwheel (6B), prevent tension when installing between angle stroke gearwheel (6B) and angle stroke small gear (6C) to assemble; By the breach formed between FA block (6C23) and FB block (6C24), can stop because dust enters the locking between angle stroke gearwheel (6B) and angle stroke small gear (6C) caused, be conducive to the measuring accuracy improving positioning work piece;

The A plate face (6C-1) at angle stroke small gear (6C) is outside in provided with convex (6C6) in FA cavity (6C4), small gear; Described FA cavity (6C4) for place angle stroke gearwheel (6B) gearwheel in convex (6B14); In described small gear, convex (6C6) is uniformly distributed and is provided with FA declining lug (6C61), FB declining lug (6C62), FC declining lug (6C63); The end contact of FA declining lug (6C61) and FA declining lug (6C61), the end contact of FB declining lug (6C62) and FB declining lug (6C62), the end contact of FC declining lug (6C63) and FC declining lug (6C63), for the slewing area of spacing angle stroke gearwheel (6B) on angle stroke small gear (6C);

Elastic component (6E) includes FA pad (6E1), FB pad (6E2), FC pad (6E3), FD pad (6E4), FA dish sulphur (6E6), FB dish sulphur (6E7) and FC circlip (6E5); FC circlip 6E5 between FB pad 6E2 and FC pad 6E3; FA disc spring (6E6) be FA pad (6E1) up and down respectively and FB pad (6E2), and spring group in FA disc spring (6E6), FA pad (6E1) and FB pad (6E2) formation; Described upper spring group is socketed on the FC cylindrical section (6D3) of main shaft (6D); FB disc spring (6E7) be FC pad (6E3) up and down respectively and FD pad (6E4), and FB disc spring (6E7), FC pad (6E3) and FD pad (6E4) form time spring group; Described lower spring group is socketed on the FB cylindrical section (6D2) of main shaft (6D), and is positioned at the top of FA bearing (6F);

The center of Simmer ring (6H) is the central through bore (6H3) passed for main shaft (6D), Simmer ring (6H) is provided with circular outer shroud (6H1), taper inner ring (6H2), is F annular chamber (6H4) between circular outer shroud (6H1) and taper inner ring (6H2); The serrated end of the taper inner ring (6H2) of Simmer ring (6H) and the FA cylindrical section (6D1) of main shaft (6D) are socketed, and Simmer ring (6H) is arranged in the BD through hole (2E1) of base (2);

Main shaft (6D) is provided with FA cylindrical section (6D1), FA groove section (6D11), FB cylindrical section (6D2), FB groove section (6D12), FC cylindrical section (6D3), FC groove section (6D13), FD cylindrical section (6D4), FD groove section (6D14), FE cylindrical section (6D5), FE groove section (6D15) from bottom to up in turn;

FA cylindrical section (6D1) is for passing the BD through hole (2E1) on base (2);

FB cylindrical section (6D2) is for installing FB bearing (6G);

FC cylindrical section (6D3) is for installing the upper spring group of elastic component (6E);

FD cylindrical section (6D4) and FE cylindrical section (6D5) are placed in the FA annular groove (6A23) of rotating disc (6A);

FA groove section (6D11) is for placing FB circlip (62);

FB groove section (6D12) is for placing FC circlip (6E5);

FC groove section (6D13) is for placing FB dish sulphur (6E7);

FD groove section (6D14) is for placing FA dish sulphur (6E6);

FE groove section (6D15) is for placing FA circlip (61).

The advantage of the intelligent valve positioner of the present invention's design is:

1. each several part connect reliable, firmly, good airproof performance, accurate positioning, be easy to install, meet and realize pneumatic control in industry spot, the control of single-acting and double-acting cylinder can be realized respectively, reliability is high, efficiency is high, versatility is good, for ease of maintenaince and change.

2. viewing window, displacement measurement mechanism, positioning disk, circuit supporting structure, gas circuit structure are convenient to processing, good manufacturability, are easy to the compatibility of electrical control and are reliably connected.

3. seal ring ensure that the sealing after installation, and dust protection, is easy to screw, screw off cleaning, improves the convenience of installation, debugging, also ensure that the reliability of electric elements inside.

4. linear displacement and angular displacement two kinds of metering systems are realized.

5., in pneumatic unit device, (1) solenoid valve is general high reliability solenoid valve, grouping realize single-acting and double-acting cylinder control, reliability is high, efficiency is high, versatility is good, for ease of maintenaince and change; (2) valve plate is convenient to processing, good manufacturability, and his cavity is easy to realize buffering when opening and closing, and controls flexibility good, is easy to the compatibility of electrical control and is reliably connected; (3) filter air bound circle ensure that installation after sealing, dust protection, is easy to screw, screw off cleaning, and the convenience of improve installations, debugging, also ensure that the reliability of electric elements inside.

6. in displacement measuring device, (1) displacement transducer is general high reliability sensor, the control of single-acting and double-acting cylinder can be realized respectively, reliability is high, efficiency is high, versatility is good, for ease of maintenaince and change, linear displacement and angular displacement two kinds of metering systems can be realized; (2) rotating disc, the large small gear of angle stroke are convenient to processing, good manufacturability, are easy to the compatibility of electrical control and are reliably connected; (3) seal ring ensure that the sealing after installation, and dust protection, is easy to screw, screw off cleaning, improves the convenience of installation, debugging, also ensure that the reliability of electric elements inside.

Accompanying drawing explanation

Fig. 1 is the front view of intelligent valve positioner of the present invention.

Figure 1A is the stereogram of intelligent valve positioner of the present invention.

Figure 1B is another view stereo figure of intelligent valve positioner of the present invention.

Fig. 1 C is the base of intelligent valve positioner of the present invention and the structural drawing of pneumatic part.

Fig. 1 D is the structural drawing of the unassembled housing of intelligent valve positioner of the present invention.

Fig. 1 E is another viewing angle constructions figure of the unassembled housing of intelligent valve positioner of the present invention.

Fig. 1 F is the exploded view of intelligent valve positioner of the present invention.

Fig. 2 is the external structure of intelligent valve positioner middle housing part of the present invention.

Fig. 2 A is the A-A sectional view of intelligent valve positioner middle housing part of the present invention.

Fig. 2 B is the superstructure figure of intelligent valve positioner middle housing part of the present invention.

Fig. 2 C is the understructure figure of intelligent valve positioner middle housing part of the present invention.

Fig. 2 D is another viewing angle constructions of base figure of intelligent valve positioner middle housing part of the present invention.

Fig. 2 E is the interior cover-protecting structure figure of intelligent valve positioner middle housing part of the present invention.

Fig. 2 F is another viewing angle constructions of interior protecting cover figure of intelligent valve positioner middle housing part of the present invention.

Fig. 2 G is the structural drawing of the base surface of the interior protecting cover of intelligent valve positioner middle housing part of the present invention.

Fig. 3 is the front view that in intelligent valve positioner of the present invention, gearshift location is combined with displacement measurement.

Fig. 3 A is the plan view that in intelligent valve positioner of the present invention, gearshift location is combined with displacement measurement.

Fig. 3 B is the stereogram that in intelligent valve positioner of the present invention, gearshift location is combined with displacement measurement.

Fig. 3 C is another view stereo figure that in intelligent valve positioner of the present invention, gearshift location is combined with displacement measurement.

Fig. 4 is the structural drawing of localization part of shifting gears in intelligent valve positioner of the present invention.

Fig. 4 A is another viewing angle constructions figure of localization part of shifting gears in intelligent valve positioner of the present invention.

Fig. 4 B is the exploded view of localization part of shifting gears in intelligent valve positioner of the present invention.

Fig. 4 C is the structural drawing of gear shaft of localization part of shifting gears in intelligent valve positioner of the present invention.

Fig. 4 D is the structural drawing of transposition cam of localization part of shifting gears in intelligent valve positioner of the present invention.

Fig. 4 E is the structural drawing of gearshift support of localization part of shifting gears in intelligent valve positioner of the present invention.

Fig. 4 F is another viewing angle constructions figure of gearshift support of localization part of shifting gears in intelligent valve positioner of the present invention.

Fig. 5 is the front view of displacement measurement part in intelligent valve positioner of the present invention.

Fig. 5 A is the sectional view of displacement measurement part in intelligent valve positioner of the present invention.

Fig. 5 B is the exploded view of displacement measurement part in intelligent valve positioner of the present invention.

Fig. 5 C is the structural drawing of displacement measurement part in intelligent valve positioner of the present invention.

Fig. 5 D is another viewing angle constructions figure of displacement measurement part in intelligent valve positioner of the present invention.

Fig. 5 E is the structural drawing of the rotating disc of displacement measurement part in intelligent valve positioner of the present invention.

Fig. 5 F is another viewing angle constructions figure of the rotating disc of displacement measurement part in intelligent valve positioner of the present invention.

Fig. 5 G is the front view of the angle stroke gearwheel of displacement measurement part in intelligent valve positioner of the present invention.

Fig. 5 H is the sectional view of the angle stroke gearwheel of displacement measurement part in intelligent valve positioner of the present invention.

Fig. 5 I is the structural drawing of the angle stroke gearwheel of displacement measurement part in intelligent valve positioner of the present invention.

Fig. 5 J is another viewing angle constructions figure of the angle stroke gearwheel of displacement measurement part in intelligent valve positioner of the present invention.

Fig. 5 K is the front view of the angle stroke small gear of displacement measurement part in intelligent valve positioner of the present invention.

Fig. 5 L is the sectional view of the angle stroke small gear of displacement measurement part in intelligent valve positioner of the present invention.

Fig. 5 M is the structural drawing of the angle stroke small gear of displacement measurement part in intelligent valve positioner of the present invention.

Fig. 5 N is another viewing angle constructions figure of the angle stroke small gear of displacement measurement part in intelligent valve positioner of the present invention.

Fig. 6 is the structural drawing of pneumatic unit device in intelligent valve positioner of the present invention.

Fig. 6 A is another viewing angle constructions figure of pneumatic unit device in intelligent valve positioner of the present invention.

Fig. 6 B is the aeroscopic plate structural drawing of pneumatic unit device in intelligent valve positioner of the present invention.

Fig. 6 C is another viewing angle constructions of aeroscopic plate figure of pneumatic unit device in intelligent valve positioner of the present invention.

Fig. 6 D is the gas circuit bottom plate structure figure of pneumatic unit device in intelligent valve positioner of the present invention.

Fig. 6 E is another viewing angle constructions of gas circuit base plate figure of pneumatic unit device in intelligent valve positioner of the present invention.

Embodiment

Below in conjunction with accompanying drawing, the present invention is described in further detail.

What the present invention designed is a kind of rectangular intelligent valve positioner, and it includes upper cover 1, base 2, base seal circle 3, interior protecting cover 4, inner support 5, displacement measuring device 6, pneumatic unit device 7 and gearshift positioning device 8.Wherein, upper cover 1, base 2, base seal circle 3, interior protecting cover 4 and inner support 5 form the electromagnetic shielding packing casing device of rectangular intelligent valve positioner.In the present invention, base seal circle 3 selects natural rubber to process.

In the present invention, metallic aluminum is coated with, to realize electromagnetic shielding at the inwall of upper cover 1 and base 2.

Upper cover 1

Shown in Fig. 1, Figure 1A, Figure 1B, Fig. 1 F, Fig. 2, Fig. 2 A, Fig. 2 B, upper cover 1 is formed in one structural member.The top plate 1A of upper cover 1 is provided with rectangular opening 1A1; This rectangular opening 1A1 place is provided with the viewing window (as windshield or plastic window etc.) of transparent material processing, can be observed parameter information or the parameter setting information of the positioning work piece demonstrated in electronic display by viewing window.The bottom panel 1B both sides of upper cover 1 are respectively equipped with for installing fixing AA through hole 1B1.The bottom of upper cover 1 is provided with A seal boss 1E, between the B seal boss 2-1 of this A seal boss 1E and base 2, base seal circle 3 is installed, is clamped in the sealing achieving upper cover 1 and foot valve seat 2 between A seal boss 1E and B seal boss 2-1 by base seal circle 3.The inside of upper cover 1 is cavity 1C, for placing the component of intelligent valve positioner in this cavity 1C.In order to improve the structural strength to upper cover 1, be provided with some stiffening ribs 1D in cavity 1C inside.

In the present invention; the cavity 1C internal surface of upper cover 1 is coated with the electro-magnetic screen layer of aluminum metallic material (or aluminum-based alloy material); realize the electromagnetic shielding to the component of positioning work piece by described electro-magnetic screen layer, thus reach the object of the reliability of protection electrical system.

In the present invention, upper cover 1 can adopt process for un-metal material.As plastics, PC material, PVC material, ABS material etc.

Base 2

Shown in Fig. 1, Figure 1A ~ Fig. 1 C, Fig. 1 F, Fig. 2 A, Fig. 2 C, Fig. 2 D, base 2 is formed in one structure.Base 2 is the case structure body of opening, and shown in Fig. 1 F, namely base 2 is provided with front panel 2A, left panel 2B, rear board 2C, right panel 2D and bottom panel 2E.The front panel 2A of base 2 is provided with the BA through hole 2A1 for the 10C that fixes a silencer.In the present invention, silencing apparatus 10C selects the G1/4 silencing apparatus of Fenghua City strong filter equipment factory production forever.

In the present invention, in order to realize the fixed installation with base 2, screw thread being installed in some blind holes of base 2 and inlaying circle 21 (as shown in fig. 1f).Described screw thread inlays circle 21 for the production of Heng Nawei Hardware Products Co., Ltd. of Shenzhen.In multiple blind holes of base 2, place screw thread respectively inlay circle 21, the fixed installation with base 2 can be realized easily.Utilize screw thread to inlay circle 21 to other parts that are threaded, reduce the processing cost of base 2, reduce the processing technology of base 2.Injection molding process can be adopted to carry out once-through and to make base 2.

Shown in Fig. 1 F, the left panel 2B of base 2 be provided with for mounting pipe joint 10A BB through hole 2B1, meet the BC through hole 2B2 of plug 10B for mounting pipe.Described pipe joint 10A is for accessing electric wire.

Shown in Figure 1A, Fig. 2 C, the right panel 2D of base 2 is provided with the spacing round platform 2D-2 of 2D4, C vent plug countersunk head chamber, 2D3, B vent plug countersunk head chamber, A vent plug countersunk head chamber 2D5, A-A through hole 2D1, A-B through hole 2D2, AA spacing round platform 2D-1 and AB; A vent plug countersunk head chamber 2D3 for installing A vent plug 10D, and is provided with A air-flow through hole 2D31 in A vent plug countersunk head chamber 2D3; B vent plug countersunk head chamber 2D4 for installing B vent plug 10E, and is provided with B air-flow through hole 2D41 in B vent plug countersunk head chamber 2D4; C vent plug countersunk head chamber 2D5 for installing C vent plug 10F, and is provided with C air-flow through hole 2D51 in C vent plug countersunk head chamber 2D5; Be separately installed with screw thread in A-A through hole 2D1 and A-B through hole 2D2 and inlay circle, this screw thread inlays circle for being connected with the screw in pneumatic unit device 7, realizes the aeroscopic plate 7B of pneumatic unit device 7 and the fixing of right panel 2D; The spacing round platform 2D-1 of AA is placed in the G-A spacing hole 7B-1 of aeroscopic plate 7B, and the spacing round platform 2D-2 of AB is placed in the G-B spacing hole 7B-2 of aeroscopic plate 7B.

Shown in Fig. 2 C, the outside of the bottom panel 2E of base 2 is provided with BD through hole 2E1, BE through hole 2E2, AA countersunk head blind hole 2E3 and AA countersunk head through hole 2E4.In AA countersunk head blind hole 2E3, screw thread is installed and inlays circle 21.The main shaft 6D that BD through hole 2E1 is used for gear-spindle part 6 passes.

Shown in Fig. 1 F, Fig. 2 D, the inside of base 2 is provided with dividing plate 2E5, the cavity of base 2 is divided into two chambers by this dividing plate 2E5, a chamber is used for fixing gearshift positioning component 8 and gear-spindle part 6, and another chamber is used for fixed air moving cell device 7 and is imported in pneumatic unit device 7 by the source of the gas of outside by aeroscopic plate 7.

Shown in Fig. 2 D, the bottom panel 2E of base 2 is provided with AA support cylinder 2F1, AB support cylinder 2F2, AC support cylinder 2F3, AD support cylinder 2F4, AE support cylinder 2F5;

AA support cylinder 2F1 is provided with and is provided with screw thread in the spacing blind hole 2F1-1 of BA spacing blind hole 2F1-1, BA and inlays circle.

AB support cylinder 2F2 is provided with and is provided with screw thread in the spacing blind hole 2F2-1 of BB spacing blind hole 2F2-1, BB and inlays circle.After the through hole of C screw 9C through the AA through hole round platform 4C1 on the AC backplate 4C of interior protecting cover 4, the screw thread being threaded in the spacing blind hole 2F1-1 of described BA is inlayed on circle; After the through hole of D screw 9D through the AB through hole round platform 4C2 on the AC backplate 4C of interior protecting cover 4, the screw thread being threaded in the spacing blind hole 2F2-1 of described BB is inlayed on circle; Inlay coordinating of circle by screw and screw thread, achieve fixing the AC backplate 4C of interior the protecting cover 4 and bottom panel 2E of base 2.

AC support cylinder 2F3 is provided with and is provided with screw thread in the spacing blind hole 2F3-1 of BC spacing blind hole 2F3-1, BC and inlays circle.

AD support cylinder 2F4 is provided with and is provided with screw thread in the spacing blind hole 2F4-1 of BD spacing blind hole 2F4-1, BD and inlays circle.(as shown in Figure 2 F) E screw 9E is through after the DA through hole 5C11 on the DA stiffening rib 5C1 of inner support 5, and the screw thread being threaded in the spacing blind hole 2F3-1 of described BC is inlayed on circle; F screw 9F is through after the DB through hole 5C21 on the DB stiffening rib 5C2 of inner support 5, and the screw thread being threaded in the spacing blind hole 2F4-1 of described BD is inlayed on circle; Inlay coordinating of circle by screw and screw thread, achieve fixing the EC backplate 5C of the inner support 5 and bottom panel 2E of base 2.

The middle part of AE support cylinder 2F5 is BD through hole 2E1, and the main shaft 6D that this BD through hole 2E1 is used for gear-spindle part 6 passes.The periphery of AE support cylinder 2F5 is provided with BA support arm 2F51, BB support arm 2F52, BC support arm 2F53 and BD support arm 2F54.The back designs of these four support arms (2F51,2F52,2F53,2F54) is blind hole, and screw thread is installed in blind hole inlays circle, inlay circle and the coordinating of screw by the screw thread of four herein, the intelligent valve positioner that the present invention can be designed be installed with the platform of outside.BA support arm 2F51 is provided with and in the spacing blind hole 2F5-1 of BE spacing blind hole 2F5-1, BE, screw thread is installed and inlays circle; One screw is through after the HB through hole 8D21 on the gearshift support 8D of gearshift positioning device 8, the screw thread being threaded in the spacing blind hole 2F5-1 of described BE is inlayed on circle, inlay coordinating of circle by screw and screw thread, achieve fixing the bottom panel 2E of shift gears support 8D and base 2.

BB support arm 2F52 is provided with and in the spacing blind hole 2F5-2 of BF spacing blind hole 2F5-2, BF, screw thread is installed and inlays circle; After the EC through hole 5F2 of (as shown in Fig. 1 C, Fig. 2 F) G screw 9G through the EB through hole round platform 5F1 of the EF backplate 5F of inner support 5, the screw thread being threaded in the spacing blind hole 2F5-2 of described BF is inlayed on circle, inlay coordinating of circle by screw and screw thread, achieve fixing the EF backplate 5F of the inner support 5 and bottom panel 2E of base 2.

Shown in Fig. 2 D, the bottom panel 2E of base 2 is also provided with BA support cylinder 2F21, BB support cylinder 2F22, BC support cylinder 2F23, BD support cylinder 2F24; BA support cylinder 2F21 is provided with and is provided with screw thread in the spacing blind hole 2F211 of B-A spacing blind hole 2F211, B-A and inlays circle; BB support cylinder 2F22 is provided with and is provided with screw thread in the spacing blind hole 2F221 of B-B spacing blind hole 2F221, B-B and inlays circle; BC support cylinder 2F23 is provided with and is provided with screw thread in the spacing blind hole 2F231 of B-C spacing blind hole 2F231, B-C and inlays circle; BD support cylinder 2F24 is provided with and is provided with screw thread in the spacing blind hole 2F241 of B-D spacing blind hole 2F241, B-D and inlays circle.(as shown in Fig. 6, Fig. 6 A) GC screw 7K is through after the through hole on gas circuit base plate 7C, and the screw thread being threaded in the spacing blind hole 2F241 of B-D is inlayed on circle; GD screw 7L is through after the through hole on gas circuit base plate 7C, and the screw thread being threaded in the spacing blind hole 2F231 of B-C is inlayed on circle; GE screw 7M is through after the through hole on gas circuit base plate 7C, and the screw thread being threaded in the spacing blind hole 2F211 of B-A is inlayed on circle; GF screw 7N is through after the through hole on gas circuit base plate 7C, and the screw thread being threaded in the spacing blind hole 2F221 of B-B is inlayed on circle; Inlay coordinating of circle by screw and screw thread, what achieve the bottom panel 2E of gas circuit base plate 7C and base 2 is fixing.In order to realize the sealing to source of the gas, between the lower end surface of gas circuit base plate 7C and the source of the gas chamber of base 2 when mounted, Sealing 7D is installed.

Shown in Fig. 2 D, the bottom panel 2E of base 2 is also provided with 2I, D source of the gas chamber, 2H, C source of the gas chamber, 2G, B source of the gas chamber, A source of the gas chamber 2J, A air-flow path 2D31, B air-flow path 2D41, C air-flow path 2D51; Four source of the gas chambeies (2G, 2H, 2I, 2J) are for storing the gas entered by air-flow path (2D31,2D41,2D51).

In the present invention, 10E is identical with the structure of C vent plug 10F for A vent plug 10D, B vent plug, selects the plastics vent plug that Qingyang, Jiangyin City crystal Aguarius lid factory produces.

In the present invention, base 2 can adopt process for un-metal material.As plastics, PC material, PVC material, ABS material etc.

Interior protecting cover 4

Interior protecting cover 4 is provided with AA backplate 4A, AB backplate 4B, AC backplate 4C, AD backplate 4D, top plate 4E;

AC backplate 4C is provided with AA through hole round platform 4C1 and AB through hole round platform 4C2; Described AA through hole round platform 4C1 aligns with the AA support cylinder 2F1 of the bottom panel 2E of base 2, uses screw to be connected in the tapped hole of AA support cylinder 2F1 through AA through hole round platform 4C1 back nut; Described AB through hole round platform 4C2 aligns with the AB support cylinder 2F2 of the bottom panel 2E of base 2, uses screw to be connected in the tapped hole of AB support cylinder 2F2 through AB through hole round platform 4C2 back nut.By coordinating of AA through hole round platform 4C1 and AA support cylinder 2F1, and the coordinating of AB through hole round platform 4C2 and AB support cylinder 2F2, achieve the fixing of one end of one end of interior protecting cover 4 and the bottom panel 2E of base 2.

Top plate 4E is provided with DA rectangular opening 4E1, DA through hole 4E2, DB through hole 4E3, DC through hole 4E4, DA semicircle blind hole 4E5, DA through hole round platform 4E51 is provided with in described DA semicircle blind hole 4E5, a screw is used to connect a nut through after the open hole 7A-1 on the through hole of DA through hole round platform 4E51, pcb board 7A, the AA backplate 4A of protecting cover 4 and fixing of pcb board 7A in realizing.DA rectangular opening 4E1 aligns with the rectangular opening of the top plate 1A of upper cover 1.The GA button 73 that DA through hole 4E2 is used in pneumatic unit device 7 passes.The GB button 74 that DB through hole 4E3 is used in pneumatic unit device 7 passes.The GC button 75 that DC through hole 4E4 is used in pneumatic unit device 7 passes.

In the present invention, in order to strengthen the bearing capacity of interior protecting cover 4, interior protecting cover 4 is provided with DA stiffening rib 4F1, DB stiffening rib 4F2.

In the present invention, interior protecting cover 4 can adopt process for un-metal material.As plastics, PVC material, ABS material etc.

Inner support 5

Inner support 5 is provided with EA backplate 5A, EB backplate 5B, EC backplate 5C, ED backplate 5D, EE backplate 5E, EF backplate 5F, EG backplate 5G.EE backplate 5E is positioned at the below of ED backplate 5D.EC backplate 5C and EF backplate 5F at grade.EA backplate 5A and the parallel placement of EB backplate 5B.

The upper end of EA backplate 5A is provided with EA bounding means 51A and EB bounding means 51B.Bounding means (51A, 51B) is made up of spacing cylinder and spacing rectangular block.

The upper end of EB backplate 5B is provided with EC bounding means 51C and ED bounding means 51D.Bounding means (51C, 51D) is made up of spacing cylinder and spacing rectangular block.In the present invention, EA bounding means 51A and EC bounding means 51C is oppositely arranged, and EB bounding means 51B and ED bounding means 51D is oppositely arranged.EA bounding means 51A inserts the GA opening slot-through hole of the pcb board 7A of pneumatic unit device 7 in 7A1; EB bounding means 51B inserts the GB opening slot-through hole of the pcb board 7A of pneumatic unit device 7 in 7A2; EC bounding means 51C inserts the GC opening slot-through hole of the pcb board 7A of pneumatic unit device 7 in 7A3; ED bounding means 51D inserts the GD opening slot-through hole of the pcb board 7A of pneumatic unit device 7 in 7A4.By the bounding means that EA backplate 5A, EB backplate 5B upper end is arranged, with opening slot-through hole that pcb board 7A is arranged to matching, the movement of pcb board 7A in magnetic shielding seal casinghousing can be stoped.

The A plate face 5C-1 of EC backplate 5C is provided with EA stiffening rib 5C1, EB stiffening rib 5C2 and EA dividing plate 5C4.EA stiffening rib 5C1 is provided with EA through hole 5C11, and this EA through hole 5C11 is used for C screw 9C through (as shown in Figure 1 C); EB stiffening rib 5C2 is provided with EB through hole 5C21, and this EB through hole 5C21 is used for D screw 9D through (as shown in Figure 1 C).The B plate face 5C-2 of EC backplate 5C is provided with EA limited post 5C3, and described EA limited post 5C3 is placed in the spacing blind hole 2F31 of B-C of base 2.

The A plate face 5F-1 of EF backplate 5F is provided with EB through hole round platform 5F1, and the center of described EB through hole round platform 5F1 is EC through hole 5F2, and this EC through hole 5F2 is used for G screw 9G through (as shown in Figure 1 C).The B plate face 5F-2 of EF backplate 5F is provided with EB limited post 5F3, and described EB limited post 5F3 is placed in the spacing blind hole 2F5-3 of BG of base 2.

In the present invention, inner support 5 can adopt process for un-metal material.As plastics, PVC material, ABS material etc.

Displacement measuring device 6

Shown in Fig. 5, Fig. 5 A, Fig. 5 B, Fig. 5 C, Fig. 5 D, displacement measuring device 6 includes rotating disc 6A, angle stroke gearwheel 6B, angle stroke small gear 6C, main shaft 6D, elastic component 6E, FA bearing 6F, FB bearing 6G, Simmer ring 6H.The gearwheel fluted disc inwall of angle stroke gearwheel 6B is provided with interior driving gear 6B1A, and the outer wall of the outer convex 6B2 of gearwheel of angle stroke gearwheel 6B is provided with outer driving gear 6B2A.Interior driving gear 6B1A and outer driving gear 6B2A engage with the upper driven tooth 8F12 on gear shaft 8F and lower driven tooth 8F3A respectively, realize the transmission of angular displacement.

In the present invention, FA bearing 6F is identical with FB bearing 6G structure.Select the sliding bearing that Jiashan, Jiaxing Jia Jun Nonlubricated bearing factory produces.

Elastic component 6E

Shown in Fig. 5 B, elastic component 6E includes FA pad 6E1, FB pad 6E2, FC pad 6E3, FD pad 6E4, FA disc spring 6E6, FB disc spring 6E7 and FC circlip 6E5.FC circlip 6E5 between FB pad 6E2 and FC pad 6E3.That FA disc spring 6E6 is FA pad 6E1 and FB pad 6E2 up and down respectively, and spring group in FA disc spring 6E6, FA pad 6E1 and FB pad 6E2 formation; Described upper spring group is socketed on the FC cylindrical section 6D3 of main shaft 6D.That FB disc spring 6E7 is FC pad 6E3 and FD pad 6E4 up and down respectively, and FB disc spring 6E7, FC pad 6E3 and FD pad 6E4 form lower spring group; Described lower spring group is socketed on the FB cylindrical section 6D2 of main shaft 6D, and is positioned at the top of FA bearing 6F.

Rotating disc 6A

Shown in Fig. 5, Fig. 5 A, Fig. 5 B, Fig. 5 E, Fig. 5 F, the center of rotating disc 6A is provided with FA central through bore 6A2, is provided with FA dome platform 6A21 and FB dome platform 6A22 in described FA central through bore 6A2; FA annular groove 6A23 between FA dome platform 6A21 and FB dome platform 6A22.The upper disk surface plate 6A1 of rotating disc 6A is provided with FA lightening recesses 6A11, FA countersunk head chamber 6A12.This FA countersunk head chamber 6A12 is for placing FA circlip 61.The outer rim of the lower wall panel 6A3 of rotating disc 6A is provided with tooth 6A31, and upper tooth 6A31 engages with the lower tooth 6B3 of angle stroke gearwheel 6B, and described upper tooth 6A31 is fix in order to the tooth realized between rotating disc 6A and angle stroke gearwheel 6B with engaging of described lower tooth 6B3.The below of rotating disc 6A is provided with FA round platform 6A4, FA and bores round platform 6A5, is provided with FA stiffening rib 6A6 between the outer wall of FA round platform 6A4 and lower wall panel 6A3, is provided with FB stiffening rib 6A7 between the outer wall that the inwall of FA round platform 6A4 and FA bore round platform 6A5.FB lightening recesses 6A8 between described FB stiffening rib 6A7.

Angle stroke gearwheel 6B

Shown in Fig. 5, Fig. 5 A, Fig. 5 B, Fig. 5 G, Fig. 5 H, Fig. 5 I, Fig. 5 J, angle stroke gearwheel 6B is formed in one structure.The centre of angle stroke gearwheel 6B is FB central through bore 6B8, and one end that described FB central through bore 6B8 is used for main shaft 6D is passed; One end of angle stroke gearwheel 6B is gearwheel fluted disc 6B1, the inwall of this gearwheel fluted disc 6B1 is provided with interior driving gear 6B1A (this interior driving gear 6B1A engages with the upper driven tooth 8F12 on gear shaft 8F), the other end of angle stroke gearwheel 6B is the outer convex 6B2 of gearwheel, and the outer convex 6B2 of this gearwheel is provided with outer driving gear 6B2A.The outer rim of described gearwheel fluted disc 6B1 is provided with external tooth form 6B1-1, the design of this external tooth form 6B1-1 facilitates the installation of angle stroke gearwheel 6B, also facilitate the driving gear (6B1A, 6B2A) regulated on the stroke gearwheel 6B of angle (8F12,8F3A engage as shown in Figure 4 B) with the driven tooth on gear shaft 8F simultaneously.

The A plate face 6B-1 of angle stroke gearwheel 6B is outside in provided with lower tooth 6B3, the first cavity 6B4, the second cavity 6B5, the 3rd cavity 6B6, the 4th cavity 6B7; Described 3rd cavity 6B6 is for placing the FA round platform 6A4 of rotating disc 6A; Described second cavity 6B5 is tapered recess; The FA round platform 6A4 that described second cavity 6B5 is used for transition rotating disc 6A installs, and realizes the motion of FA round platform 6A4 in the 3rd cavity 6B6 and is not interfered; Described 4th cavity 6B7 bores round platform 6A5 for the FA placing rotating disc 6A.

The B plate face 6B-2 of angle stroke gearwheel 6B is outside in provided with convex 6B14 in the 7th cavity 6B10, gearwheel outer convex 6B2, the 6th cavity 6B9, gearwheel; In described gearwheel, convex 6B14 is evenly distributed with FA and bores projection 6B11, FB cone projection 6B12, FC cone projection 6B13, described three cones projection (6B11,6B12,6B13) are placed in respectively with on convex 6C6 in the small gear of angle stroke small gear 6C, and it is spacing to be undertaken in circumference by FA declining lug 6C61, FB declining lug 6C62, FC declining lug 6C63.The inwall of the outer convex 6B2 of described gearwheel is provided with interior projection 6B22, and interior projection 6B22 is provided with blind hole 6B21, is provided with screw thread and inlays circle in this blind hole 6B21.Described interior projection 6B22 is placed in arcuate socket 6C21.Arcuate socket 6C21 coordinates with interior projection 6B22's, and the initial position achieving angle stroke gearwheel 6B and angle stroke small gear 6C is installed.

Angle stroke small gear 6C

Shown in Fig. 5, Fig. 5 A, Fig. 5 B, Fig. 5 K, Fig. 5 L, Fig. 5 M, Fig. 5 N, angle stroke small gear 6C is formed in one structure.The centre of angle stroke small gear 6C is FC central through bore 6C3, and one end that described FC central through bore 6C3 is used for main shaft 6D is passed; One end of angle stroke small gear 6C is small gear fluted disc 6C1, and the other end of angle stroke small gear 6C is the outer convex 6C2 of small gear.In the outer rim of described small gear fluted disc 6C1, interval is evenly distributed with protruding 6C1-1 and groove 6C1-2.The outer convex 6C2 of described small gear is provided with arcuate socket 6C21, and this arcuate socket 6C21 is for placing the interior projection 6B22 of angle stroke gearwheel 6B.The outer edge surface of the outer convex 6C2 of described small gear is provided with outer projection 6C22, FA block 6C23 and FB block 6C24, utilize the wall contacts of the 6th chamber 6B9 of outer projection 6C22 and angle stroke gearwheel 6B, prevent tension when installing between angle stroke gearwheel 6B and angle stroke small gear 6C to assemble.By the breach formed between FA block 6C23 and FB block 6C24, can stop because dust enters the locking between angle stroke gearwheel 6B and angle stroke small gear 6C caused, be conducive to the measuring accuracy improving positioning work piece.

Shown in Fig. 5, Fig. 5 A, Fig. 5 B, the A plate face 6C-1 of angle stroke small gear 6C is outside in provided with convex 6C6 in FA cavity 6C4, small gear; Described FA cavity 6C4 for place angle stroke gearwheel 6B gearwheel in convex 6B14; In described small gear, convex 6C6 is uniformly distributed and is provided with FA declining lug 6C61, FB declining lug 6C62, FC declining lug 6C63; The end contact of FA declining lug 6C61 and FA declining lug 6C61, the end contact of FB declining lug 6C62 and FB declining lug 6C62, the end contact of FC declining lug 6C63 and FC declining lug 6C63, for the slewing area of spacing angle stroke gearwheel 6B on the stroke small gear 6C of angle.

Simmer ring 6H

Shown in Fig. 5, Fig. 5 A, Fig. 5 B, the center of Simmer ring 6H is the central through bore 6H3 passed for main shaft 6D, Simmer ring 6H is provided with circular outer shroud 6H1, taper inner ring 6H2, be F annular chamber 6H4 between circular outer shroud 6H1 and taper inner ring 6H2, this F annular chamber 6H4 is for alleviating the weight of Simmer ring 6H.The serrated end of the taper inner ring 6H2 of Simmer ring 6H and the FA cylindrical section 6D1 of main shaft 6D are socketed, and Simmer ring 6H is positioned in the BD through hole 2E1 of base 2.

Main shaft 6D

Shown in Fig. 5 A, Fig. 5 B, main shaft 6D is provided with FA cylindrical section 6D1, FA groove section 6D11, FB cylindrical section 6D2, FB groove section 6D12, FC cylindrical section 6D3, FC groove section 6D13, FD cylindrical section 6D4, FD groove section 6D14, FE cylindrical section 6D5, FE groove section 6D15 from bottom to up in turn.FA cylindrical section 6D1 is used for through the BD through hole 2E1 on base 2.FB cylindrical section 6D2 is for installing FB bearing 6G.FC cylindrical section 6D3 is for installing FA bearing 6F.FD cylindrical section 6D4 and FE cylindrical section 6D5 is placed in the FA annular groove 6A23 of rotating disc 6A.FA groove section 6D11 is for placing FB circlip 62.FB groove section 6D12 is for placing FC circlip 6E5.FC groove section 6D13 is for placing FB disc spring 6E7.FD groove section 6D14 is for placing FA disc spring 6E6.FE groove section 6D15 is for placing FA circlip 61.

The displacement measuring device 6 of the present invention's design is after receiving the angular displacement S (as shown in Figure 3) of external feedback, and main shaft 6D rotates, then driven rotary dish 6A rotates; The motion of rotating disc 6A drives angle stroke gearwheel 6B servo-actuated; Angle stroke gearwheel 6B outer driving gear 6B2A and interior driving gear 6B1A respectively with the lower driven tooth 8F3A of gear shaft 8F, under driven tooth 8F12 engages, realizing modulus is 0.5, and velocity ratio is the transmission of 1:3 (outer driving gear 6B2A and lower driven tooth), 4:33 (interior driving gear 6B1A and upper driven tooth 8F12); The Sports band zeta potential device 81 of gear shaft 8F rotates, and causes angular displacement to export an electrical signal through potentiometer 81; The conversion of velocity ratio is controlled by the cam 8C that replaces, (as shown in Figure 3 C) when around A axis clockwise rolling transposition cam 8C to limit position time, gearshift support 8D rotates around B axis clockwise, the lower driven tooth 8F3A of gear shaft 8F is engaged with the outer driving gear 6B2A of angle stroke gearwheel 6B, and velocity ratio is 1:3; Otherwise the upper driven tooth 8F12 of gear shaft 8F engages with the interior driving gear 6B1A of angle stroke gearwheel 6B, and velocity ratio is 4:33.

In the present invention, the rotating disc 6A in displacement measuring device 6, angle stroke gearwheel 6B, angle stroke small gear 6C can adopt process for un-metal material, as plastics, PPS, PC etc.Main shaft 6D can adopt metal material processing, as stainless steel etc.

Pneumatic unit device 7

Shown in Fig. 6, Fig. 6 A, pneumatic unit device 7 includes aeroscopic plate 7B, gas circuit base plate 7C, Sealing 7D, GA sphere filter 7E, GB sphere filter 7F, GC sphere filter 7G and carries the circuit pcb board 7A of electronic parts and components.

LCD display 72 for showing the information such as positioning work piece parameter of the present invention is placed in the top of circuit pcb board 7A, and being positioned at the below of the DA rectangular opening 4E1 of protecting cover 4 and the rectangular opening 11A of upper cover 1, the DA rectangular opening 4E1 of interior protecting cover 4 is overlapping with the rectangular opening 11A of upper cover 1.The GA button 73 that circuit pcb board 7A is provided with, GB button 74 and GC button 75 are each passed through DA through hole 4E2, DB through hole 4E3 and the DC through hole 4E4 of interior protecting cover 4.The A panel 7B-1 of described gas circuit base plate 7C is provided with plurality of electromagnetic valve 71.In the present invention, Sealing 7D adopts natural rubber processing.The configuration of Sealing 7D is identical with the configuration of Seal cage 7C16.

Circuit pcb board 7A

Shown in Fig. 1 C, Fig. 1 D, Fig. 1 E, Fig. 6, Fig. 6 A, circuit pcb board 7A is for carrying electronic parts and components, LCD display 72, GA button 73, GB button 74 and GC button 75.One end of circuit pcb board 7A is provided with GA opening slot-through hole to 7A1, GB opening slot-through hole to 7A2; GA opening slot-through hole to 7A1 for placing the DA bounding means 51A of inner support 5; GB opening slot-through hole to 7A2 for placing the DB bounding means 51B of inner support 5.The other end of circuit pcb board 7A is provided with GC opening slot-through hole to 7A3, GD opening slot-through hole to 7A4; GC opening slot-through hole to 7A3 for placing the DC bounding means 51C of inner support 5; GD opening slot-through hole to 7A4 for placing the DD bounding means 51D of inner support 5.In the present invention, the bounding means (51A, 51B, 51C, 51D) of inner support 5 upper end is adopted to support circuit pcb board 7A, and the coordinating of the opening slot-through hole of electricity consumption PCB plate 7A both sides pair and bounding means, realizing circuit pcb board 7A and inner support 5 fixing.

Aeroscopic plate 7B

Shown in Fig. 1 C, Fig. 1 D, Fig. 1 E, Fig. 6 B, Fig. 6 C, the GA panel 7B1 of aeroscopic plate 7B is provided with GA countersunk head through hole 7B11, GB countersunk head through hole 7B12, GC countersunk head through hole 7B13, GA through hole 7B4, GB through hole 7B5, GC through hole 7B6.In the present invention, because aeroscopic plate 7B is metallic material, therefore first install screw thread in three countersunk head through holes (7B11,7B12,7B13) and inlay circle, be then threaded screw, realizes the right panel 2C of gas circuit base plate 7B and base 2 to fix.The GB panel 7B2 of gas circuit base plate 7B is provided with GA tapped hole 7B21 and GB tapped hole 7B22, and GA tapped hole 7B21 is used for the GA long spiro nail 7I that is threaded, and GB tapped hole 7B22 is used for the GB long spiro nail 7J that is threaded.Aeroscopic plate 7B selects metal material processing.

One end of GA through hole 7B4 is provided with A vent plug 10D, and the other end of GA through hole 7B4 is provided with GA sphere filter 7E.

One end of GB through hole 7B5 is provided with B vent plug 10E, and the other end of GB through hole 7B5 is provided with GB sphere filter 7F.

One end of GC through hole 7B6 is provided with C vent plug 10F, and the other end of GC through hole 7B6 is provided with GC sphere filter 7G.

Gas circuit base plate 7C

Shown in Fig. 6 D, Fig. 6 E, the through hole 7C-4 that the corner of gas circuit base plate 7C is respectively equipped with the GD through hole 7C11 passed for GF long spiro nail 7N, the GE through hole 7C12 supplying GC long spiro nail 7K to pass, the GF through hole 7C13 supplying GD long spiro nail 7L to pass, the GG through hole 7C14 supplying GE long spiro nail 7M to pass, air feed flow through.

Shown in Fig. 1 C, Fig. 6 D, Fig. 6 E, the A plate face 7C-1 of gas circuit base plate 7C is provided with the blind hole 7C-3 inlaying circle 7C-31 for installing screw thread.

Shown in Fig. 6 D, Fig. 6 E, the B plate face 7C-2 of gas circuit base plate 7C is provided with the lightening hole 7C15 of the weight alleviating gas circuit base plate 7C, is the stiffening rib for improving gas circuit base plate 7C structural strength between lightening hole 7C15; Be provided with the Seal cage 7C16 for placing Sealing 7D; For storing 7C21, GB source of the gas chamber, GA source of the gas chamber 7C22, GC source of the gas chamber 7C23 and the GD source of the gas chamber 7C24 of air-flow, wherein, GA source of the gas chamber 7C21 is corresponding with A source of the gas chamber 2G, GB source of the gas chamber 7C22 is corresponding with B source of the gas chamber 2H, GC source of the gas chamber 7C23 is corresponding with C source of the gas chamber 2I, and GD source of the gas chamber 7C24 is corresponding with D source of the gas chamber 2J.

In the present invention, solenoid valve 71 is the solenoid valve of leading type two-bit triplet structure.The SYJ514T-5MZ-F model solenoid valve selecting SMC company to produce.

In the present invention, GA sphere filter 7E, GB sphere filter 7F is identical with the structure of GC sphere filter 7G.Select the sphere filter that Taizhou plain road and bridge Hua Nong screen cloth factory produces.

In the present invention, aeroscopic plate 7B and gas circuit base plate 7C can adopt metal material processing.As aluminum alloy etc.

Positioning device 8

Shown in Fig. 1 D, Fig. 1 E, Fig. 1 F, Fig. 3, Fig. 3 B, Fig. 3 C, Fig. 4, Fig. 4 A ~ Fig. 4 F, positioning device 8 includes potentiometer 81, balance weight body 82, slide block 8A, shell fragment 8B, transposition cam 8C, gearshift support 8D, lock ring 8E and gear shaft 8F.One end of gear shaft 8F is connected with the output shaft 811 of potentiometer 81.Gear shaft 8F is socketed with lock ring 8E.Shell fragment 8B selects metal material processing, as copper.

In the present invention, the global 6537S-420-103 model potentiometer along logical Science and Technology Ltd. in Beijing selected by potentiometer 81.Performance index 10K Ω ± 10%.

Slide block 8A and shell fragment 8B

Shown in Fig. 4, Fig. 4 A, Fig. 4 B, slide block 8A is provided with HA lockhole 8A1, and this HA lockhole 8A1 holds 8B2 for the B placing shell fragment 8B.Slide block 8A is arranged on the dividing plate 2E5 of base 2.

Shown in Fig. 4, Fig. 4 A, Fig. 4 B, one end of shell fragment 8B is designated as A and holds the other end of 8B1, shell fragment 8B to be designated as B end 8B2.Described A holds 8B1 to be placed in the HB lockhole 8D12 of the HA cirque body 8D1 of gearshift support 8D.Described B holds 8B2 to be placed in the HA lockhole 8A1 of slide block 8A.Shell fragment 8B is designed to " V " shape structure, and the elastic telescopic ability can controlled oneself by shell fragment 8B in shift process realizes spacing.

Transposition cam 8C

Shown in Fig. 4, Fig. 4 A, Fig. 4 B, Fig. 4 D, transposition cam 8C is formed in one structure.The middle part of transposition cam 8C is HD through hole 8C6, and this HD through hole 8C6 is for placing the HC cirque body 8D3 of gearshift support 8D.Transposition cam 8C is provided with landolsring 8C1, annulus 8C2, auxiliary ring 8C3; Being provided with snap ring groove 8C5 between landolsring 8C1 and annulus 8C2, is arc shaped blind slot 8C4 between annulus 8C2 and auxiliary ring 8C3.Described annulus 8C2 is provided with the convex block of HA 8C21 and HB convex block 8C22, HA convex block 8C21 or HB convex block 8C22 and the contact of the scarce block 8D51 of gearshift support 8D realizes shift gears initial installation of support 8D and the cam 8C that replaces and locates.

Gearshift support 8D

Shown in Fig. 4, Fig. 4 A, Fig. 4 B, Fig. 4 E, Fig. 4 F, gearshift support 8D is formed in one structure.Gearshift support 8D is provided with HA cirque body 8D1, HB cirque body 8D2, HC cirque body 8D3, HA connecting plate 8D4 and HB connecting plate 8D5, HB cirque body 8D2 is between HA cirque body 8D1 and HC cirque body 8D3, and be HB connecting plate 8D5 between HA connecting plate 8D4, HB cirque body 8D2 and HC cirque body 8D3 between HA cirque body 8D1 and HB cirque body 8D2.The junction point of HB connecting plate 8D5 and HC cirque body 8D3 is provided with lock dog 8D-1, when described lock dog 8D-1 contacts respectively with two boss on the landolsring 8C1 of transposition cam 8C, is the limit position that positioning work piece can realize.

One end of described HB connecting plate 8D5 is provided with scarce block 8D51 and short slot 8D52, and short slot 8D52 is stuck on the annulus 8C2 at the snap ring groove 8C5 place of transposition cam 8C, and lacking block 8D51 can contact with the convex block 8C22 of the convex block of HA 8C21 or HB.

The middle part of described HA cirque body 8D1 is HA through hole 8D11, and this HA through hole 8D11 is for placing potentiometer 81; The outer edge surface of described HA cirque body 8D1 is provided with HB lockhole 8D12, and this HB lockhole 8D12 holds 8B1 for the A placing shell fragment 8B.

HB lockhole 8D12 is " V " shape configuration, and this A being conducive to shell fragment 8B holds smooth and easy the slipping into of 8B1 to skid off.HB cirque body 8D2 is provided with HB through hole 8D21, and this HB through hole 8D21 is for installing long spiro nail, and this long spiro nail is connected in the BE spacing hole 2F5-1 of base 2 through HB through hole 8D21 rear thread.

HC cirque body 8D3 is provided with HC blind hole 8D31, and this HC blind hole 8D31 is for placing balance weight body 82.

Shown in Fig. 4, Fig. 4 B, lock ring 8E is socketed on the HB shaft part of gear shaft 8F, for realizing fixing between the HB shaft part of gear shaft 8F and the output shaft 811 of potentiometer 81.

Gear shaft 8F

Shown in Fig. 4, Fig. 4 B, gear shaft 8F is provided with HA shaft part 8F1, HB shaft part 8F2 and convex 8F3.The end of HA shaft part 8F1 is provided with HA blind hole 8F11.Equally distributed three arc pawl 8F21 and opening slot 8F22 on HB shaft part 8F2.By being socketed lock ring 8E on HB shaft part 8F2, realize being fixedly connected with between gear shaft 8F and the output shaft 811 of potentiometer 81.HA shaft part 8F1 is provided with driven tooth 8F12, on this driven tooth 8F12 move time can with the inwall of angle stroke gearwheel 6B designs in driving gear 6B1A engage.Convex 8F3 is provided with lower driven tooth 8F3A, this lower driven tooth 8F3A when moving can with on the outer wall of the outer convex 6B2 of the gearwheel of angle stroke gearwheel 6B in driving gear 6B2A engage.

In the present invention, gearshift support 8D in positioning device 8 is under the control of transposition cam 8C, arrive the limit position along (or inverse) clock, the limit position of gearshift support 8D is locked by slide block 8A, shell fragment 8B, when the support 8D that shifts gears is in the limit position of clockwise, slide block 8A needs the limit position being moved into Y-axis negative direction, and the two ends of shell fragment 8B hold out against the HB lockhole 8D12 of gearshift support 8D, the HA lockhole 8A1 of slide block 8A; Otherwise slide block 8A needs the limit position being moved into Y-axis postive direction, the two ends of shell fragment 8B hold out against the HB lockhole 8D12 of gearshift support 8D, the HA lockhole 8A1 of slide block 8A.

The engagement of positioning work piece of the present invention:

Shown in Fig. 3 C, when rotating clockwise transposition cam 8C to limit position, then the support 8D that shifts gears is around B axis along clockwise movement, and gear shaft 8F and angle stroke gearwheel 6B forms outer gearing state.Driving gear 8F12 on the HA shaft part 8F1 of i.e. gear shaft 8F engages with the driving gear on the gearwheel fluted disc inwall 6B1-1 of angle stroke gearwheel 6B.

Shown in Fig. 3 C, when rotating counterclockwise transposition cam 8C to limit position, then the support 8D that shifts gears is around B axis along counterclockwise movement, and gear shaft 8F and angle stroke gearwheel 6B forms internal messing state.Driving gear 8F12 on the HA shaft part 8F1 of i.e. gear shaft 8F engages with the driving gear on the outer wall of the outer convex 6B2 of the gearwheel of angle stroke gearwheel 6B.

The intelligent valve positioner of the present invention's design utilizes the stroke of displacement transducer (potentiometer) to the cylinder promoting valve actuator to measure, realize the control to adjustment type valve or switch valve aperture, to this, displacement measurement structure is the important component part of intelligent valve positioner, general displacement transducer is adopted to combine with special positioning disk, the displacement measurement adopting replaceable structure to realize single-acting and double-acting cylinder controls, and effectively can improve control efficiency and save tolerance.

The requirement of structure of a kind of rectangular intelligent valve positioner of the present invention's design be each several part connect reliable, firmly, good airproof performance, accurate positioning, be easy to install, realize pneumatic control to meet in industry spot.Industry spot gas has dust, have good hermetically sealed performance, to realize protection, because debugging needs, also wants can pull down easily, to increase work efficiency.

Claims

1. a displacement measuring device for rectangular intelligent valve positioner, is characterized in that: this displacement measuring device includes rotating disc (6A), angle stroke gearwheel (6B), angle stroke small gear (6C), main shaft (6D), elastic component (6E), FA bearing (6F), FB bearing (6G), Simmer ring (6H);