CN115900620A

CN115900620A - Butterfly valve plate quality testing device

Info

Publication number: CN115900620A
Application number: CN202310146994.7A
Authority: CN
Inventors: 袁玉良; 李向群
Original assignee: Suzhou Industrial Park Tianyang Machinery Co ltd
Current assignee: Suzhou Industrial Park Tianyang Machinery Co ltd
Priority date: 2023-02-22
Filing date: 2023-02-22
Publication date: 2023-04-04
Anticipated expiration: 2043-02-22
Also published as: CN115900620B

Abstract

The invention relates to the field of valve plate quality detection, and particularly discloses a butterfly valve plate quality testing device which comprises a test board, wherein a prepressing box is fixedly arranged on the right side of the top of the test board through a connecting transmission box, an aperture measuring mechanism is arranged in the test board and used for realizing the test operation of a valve rod groove of a produced butterfly valve plate, the aperture measuring mechanism comprises a driving motor arranged at the bottom of an inner cavity of the test board, and the positioning prepressing and positioning of the valve plate is realized by utilizing the driving of the driving motor and matching with the transmission operation of an upper steering component, an intermittent component and a transmission component through the aperture measuring mechanism.

Description

Butterfly valve plate quality testing device

Technical Field

The invention relates to the field of valve plate quality detection, in particular to a butterfly valve plate quality testing device.

Background

The butterfly valve is a valve which uses a disc type opening and closing piece to rotate back and forth by about 90 degrees to open, close or adjust the medium flow, has simple structure, small volume, light weight, material consumption saving, small installation size, small driving moment, simple and convenient operation, rapidness, good flow adjusting function and closing and sealing characteristics, and mainly comprises a valve body, a valve rod, a valve plate and a sealing ring, wherein the valve body is cylindrical, has short axial length and is internally provided with the valve plate.

And to butterfly valve plate quality test not only be limited to just detect its quality, the inseparability of being connected between the standing groove of its valve plate department seting up and the valve rod also can cause the influence of this butterfly valve leakproofness, consequently still has following problem in the connection sealing quality to the valve plate measuring process:

when the valve plate is tested, the operations are required to be realized through different procedures when the positioning and clamping of the valve plate and the aperture measurement of the valve rod groove of the valve plate are carried out, so that the testing efficiency is reduced, and certain deviation exists between the center of the testing rod and the center of the valve rod groove of the valve plate in the testing operation, so that the testing accuracy is not high.

Therefore, the quality testing device for the valve plate of the butterfly valve is provided for solving the problems.

Disclosure of Invention

The invention aims to provide a quality testing device for a valve plate of a butterfly valve, which aims to solve the problems that the prior art needs different procedures to realize operation so as to cause low testing efficiency when positioning and clamping the valve plate and measuring the aperture of a valve rod groove of the valve plate, and the problem that certain deviation exists between the center of a testing rod and the center of the valve rod groove of the valve plate in the testing operation.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a butterfly valve plate quality testing device, includes the testboard, the right side at testboard top has prepressing box through connecting transmission case fixed mounting, the inside of testboard is provided with aperture measuring mechanism, and aperture measuring mechanism is used for realizing carrying out test operation to the valve rod groove of the butterfly valve plate after the production, including installing in the driving motor of testboard inner chamber bottom in the aperture measuring mechanism, there is the subassembly that turns to through the coupling joint in the one end of driving motor output shaft and makes the drive pivot rotate, turn to the rotation that the top of subassembly realized vice pivot through intermittent type subassembly, the top of vice pivot realizes through being provided with symmetrical reciprocating motion subassembly that two T templates carry out the removal relative or carried on the back mutually, and the surface of T template realizes the horizontal removal in left and right sides through the slip subassembly, the one end fixedly connected with test bar of T template, the inside of test bar is provided with the extension measurement component who is used for valve rod groove aperture on the valve plate, the surface of drive pivot makes the transmission pivot rotate through transmission component, the surface of transmission pivot just is located prepressing box and is provided with the location pressure moves the subassembly.

In a further embodiment, the steering assembly includes a worm mounted on an output shaft of the driving motor, a worm wheel is fixedly mounted at a left end of the driving rotating shaft, and the worm is driven to rotate with the worm wheel engaged therewith.

In a further embodiment, the intermittent assembly comprises a half gear fixedly installed at the top end of the worm, the surface of the secondary rotating shaft is fixedly connected with a full gear, and the half gear rotates to be meshed with the full gear to drive the full gear to rotate.

In a further embodiment, the reciprocating assembly comprises a supporting rotating shaft, the surface of the supporting rotating shaft and the surface of the auxiliary rotating shaft are fixedly provided with meshed gears which are meshed with each other, the top ends of the supporting rotating shaft and the auxiliary rotating shaft are fixedly connected with driving wheels, the surface of each driving wheel is rotatably provided with a driving rod through a rotating pin, one end of each driving rod is connected with a driving block through rotation, and the mutually-away sides of the two driving blocks are connected with the opposite sides of the two T-shaped plates.

In a further embodiment, the sliding assembly comprises a pair of sliding rods, two ends of each sliding rod are fixedly connected with the left side and the right side of the inner cavity of the test board, a sliding groove is formed in the surface of the T-shaped board, and the surface of each sliding rod and the inner surface of the corresponding sliding groove penetrate through and slide.

In a further embodiment, including location response piece in the extension measuring subassembly, location response piece and outside computer control terminal electric connection, the extension groove has been seted up on the surface of test bar, and the inside fixed mounting of test bar has the circular arc board, the inside fixed mounting of test bar has the cylinder, the inside sliding connection of cylinder has the piston rod, the one end fixed mounting of piston rod has trapezoidal piece, location response piece bottom end fixedly connected with extension bar and run through to the below of circular arc board, the three hornblocks of bottom fixedly connected with of extension bar, and the surface cover of extension bar is equipped with extension spring, extension spring's both ends and the opposite side fixed connection of location response piece and circular arc board, the surface contact of trapezoidal piece and three hornblocks, and trapezoidal piece extrudees three hornblocks at the removal in-process.

In a further embodiment, when the positioning induction sheet does not extend outwards, the outer surface of the positioning induction sheet is flush with the outer surface of the test rod, and when the positioning induction sheet extends outwards until the positioning induction sheet contacts with the inner wall of the valve rod groove of the valve plate, the determination of the distance after the positioning induction sheet moves is realized, at the moment, the distance data between the positioning induction sheet and the outer surface of the test rod after the positioning induction sheet contacts with the inner wall of the valve rod groove is transmitted to the computer control terminal, and the comparison operation of the distance data and the valve rod groove inner diameter data on the valve plate after the test rod is calculated with the standard data in the database is realized through a data comparison module in the computer control terminal;

the calculation formula of the measured inner diameter of the valve rod groove on the valve plate in the computer control terminal is as follows:

L=2f+R；

wherein L is the diameter of valve rod groove inner circle on the valve plate, and f is the distance between the outer surface of location response piece after the measuring in-process from the test bar to the contact of valve rod inslot wall, and R is the outer lane diameter distance of test bar, and the distance unit when calculating is: mm.

In a further embodiment, the transmission assembly comprises a first chain wheel and a second chain wheel, the first chain wheel is fixedly arranged on the surface of the driving rotating shaft, the second chain wheel is fixedly arranged on the surface of the transmission rotating shaft, and the surfaces of the first chain wheel and the second chain wheel are connected in a chain transmission manner.

In a further embodiment, the positioning pressing assembly comprises a convex circular ring and a rotating plate fixedly mounted on the surface of the transmission rotating shaft, the surface of the rotating plate is fixedly connected with a rotating shaft, the rotating shaft slides inside an arc groove of the convex circular ring, the convex circular ring is enabled to move in the vertical direction through a connecting limiting assembly, a pre-pressing rod is fixedly connected to the bottom of the convex circular ring, the bottom end of the pre-pressing rod penetrates through the bottom of the pre-pressing box and extends to the bottom of the pre-pressing box, a pre-pressing plate is fixedly connected to the bottom of the pre-pressing plate, and a positioning groove is formed in the bottom of the pre-pressing plate.

In a further embodiment, the limiting assembly comprises a supporting rod arranged on the inner wall of the prepressing box, one end of the supporting rod is fixedly connected with a supporting ring, a limiting rod is fixedly arranged at a convex ring at the top of the convex circular ring, and the limiting rod is in penetrating sliding connection with the surface of the supporting ring;

furthermore, the system also comprises a calibration acquisition unit, a data analysis unit, an interference acquisition unit and a feedback integration unit;

the calibration acquisition unit is used for acquiring a dynamic track curve of the positioning induction sheet in the operation process of the equipment and sending the dynamic track curve to the data storage unit for storage;

the data analysis unit extracts a dynamic track curve of the positioning induction sheet, carries out superposition comparison on the dynamic track curve and a preset track, obtains a difference value between the dynamic track curve and the preset track, obtains an average value and a standard difference value of absolute values of the difference value, correspondingly generates a curve mean variable and a curve fluctuation variable, and sends the curve mean variable and the curve fluctuation variable to the feedback integration unit;

the interference acquisition unit is used for acquiring the vibration frequency mean value and the vibration amplitude mean value at the position of the positioning induction sheet and sending the vibration frequency mean value and the vibration amplitude mean value to the feedback integration unit; the feedback integration unit is used for receiving the average value, the standard deviation value, the vibration frequency average value and the vibration amplitude average value, obtaining feedback interference factors through normalization processing, then carrying out quantitative averaging on the feedback interference factors of a preset number to obtain feedback interference coefficients, comparing the feedback interference coefficients with the preset coefficients, generating alarm signals when the feedback interference coefficients are larger than the preset coefficient values, and carrying out alarm processing operation when the alarm signals are generated.

Compared with the prior art, the invention has the beneficial effects that:

1. through being provided with aperture measuring mechanism, utilize driving motor's drive and cooperation to go up to the subassembly, intermittent type subassembly and drive assembly's transmission operation, make the location press to move the subassembly and carry out the pre-compaction location to the valve plate, and carry out relative movement through the test bar that reciprocating motion subassembly drove on the T template, realized here to valve plate location pre-compaction, the removal operation of test bar and to the valve plate inside valve rod inslot diameter measurement's integration linkage operation, improved the efficiency of software testing of butterfly valve plate aperture processing quality.

Through being provided with the extension measurement subassembly, utilize intelligent control system's control operation for the cylinder starts the synchronous strange land who drives piston rod and trapezoidal piece, makes the inclined plane contact of trapezoidal piece and triangular piece, has extruded the extension rod simultaneously and has outwards removed with the location response piece, has realized the measurement to the product aperture, with this internal diameter that can test out the valve stem groove whether accords with required requirement, thereby has avoided the product existence of follow-up use to rock or the not good problem of leakproofness.

The positioning pressing assembly is arranged, the rotating shaft on the rotating plate is driven to slide on the inner side of the arc groove of the convex ring by the transmission rotating shaft, the prepressing rod and the prepressing plate are driven to move downwards, the positioning groove is correspondingly matched with the bulge on the surface of the valve plate and positioned on the outer side of the valve rod groove, horizontal prepressing operation is achieved, the valve plate is kept horizontal during detection, the center of the movement of the testing rod can be accurately positioned, and the accuracy of data of subsequent testing is effectively improved.

The dynamic track curve of the induction sheet is positioned and analyzed in the operation process of the acquisition equipment to generate a curve mean variable and a curve fluctuation variable, the curve mean variable and the curve fluctuation variable are combined with a vibration frequency mean value and a vibration amplitude mean value to be analyzed in a normalization mode to obtain a feedback interference factor, the larger the feedback interference factor is, the poorer the operation state of the equipment in the preset time is, the lower the test precision of the equipment is reflected, the feedback interference factor is obtained by carrying out quantization averaging on a plurality of feedback interference factors, the feedback interference factor is compared with the preset coefficient, when the feedback interference factor is larger than the preset coefficient value, an alarm signal is generated, and when the generated alarm signal is subjected to alarm processing operation, so that when the operation of the part reaches the preset warning value, the alarm reminding function is carried out.

Drawings

FIG. 1 is a schematic structural diagram of a butterfly valve plate quality testing device;

FIG. 2 is a schematic perspective sectional view of a pre-pressing box according to the present invention;

FIG. 3 is a schematic view of an internal linkage in accordance with the present invention;

FIG. 4 is an enlarged structural view of a portion A of FIG. 3 according to the present invention;

FIG. 5 is a schematic view of the construction of the steering assembly, the intermittent assembly and the drive assembly of the present invention;

FIG. 6 is a schematic perspective view of the reciprocating assembly of the present invention;

FIG. 7 is a schematic perspective view of an extension measurement assembly according to the present invention;

FIG. 8 is an enlarged view of a portion of the structure at B in FIG. 7;

FIG. 9 is a schematic exploded perspective view of a positioning and pressing assembly of the present invention;

FIG. 10 is a schematic block diagram of an intelligent control system of the present invention.

In the figure: 1. a test bench; 2. a transmission case; 3. pre-pressing the box; 4. an aperture measuring mechanism; 41. a drive motor; 42. a steering assembly; 42-1, worm; 42-2, a worm gear; 43. a batch assembly; 43-1, half gear; 43-2, full gear; 44. a reciprocating assembly; 44-1, supporting the rotating shaft; 44-2, a meshing gear; 44-3, driving wheels; 44-4, a driving rod; 44-5, a driving block; 45. a sliding assembly; 45-1, a sliding rod; 45-2, a sliding groove; 46. a transmission assembly; 46-1, a first sprocket; 46-2, a second sprocket; 46-3, a chain belt; 47. positioning the pressing component; 47-1, convex circular ring; 47-2, a rotating plate; 47-3, a rotating shaft; 47-4, a limiting component; 47-41 parts of supporting rod; 47-42, support ring; 47-43 and a limiting rod; 47-5, a pre-pressing rod; 47-6, prepressing plates; 47-7, a positioning groove; 48. an extension measurement assembly; 48-1, positioning the induction sheet; 48-2, an extension groove; 48-3, arc plates; 48-4, a cylinder; 48-5, a piston rod; 48-6, a trapezoidal block; 48-7, an extension rod; 48-8 parts of triangular blocks; 48-9, extension springs; 49. an auxiliary movable rotating shaft; 410. a T-shaped plate; 411. a test bar; 412. driving the rotating shaft; 413. and a transmission rotating shaft.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-10, in an embodiment of the present invention, a quality testing apparatus for a butterfly valve plate includes a testing table 1, a pre-pressing box 3 is fixedly installed on the right side of the top of the testing table 1 through a connecting transmission box 2, an aperture measuring mechanism 4 is installed inside the testing table 1, the aperture measuring mechanism 4 is used for performing a testing operation on a valve rod groove of a produced butterfly valve plate, the aperture measuring mechanism 4 includes a driving motor 41 installed at the bottom of an inner cavity of the testing table 1, the driving motor 41 is a three-phase asynchronous motor, the driving motor 41 is electrically connected to an external power source, the driving motor 41 performs an opening and closing operation control through an external computer control terminal, one end of an output shaft of the driving motor 41 is connected to a steering assembly 42 through a coupler, so that the driving shaft 412 rotates, and the right end of the driving shaft 412 is fixed to the right side wall of the inner cavity of the transmission box 2 through a rotating bearing, the top of the steering component 42 realizes the rotation of the auxiliary rotating shaft 49 through the intermittent component 43, the bottom end of the auxiliary rotating shaft 49 is fixed with the bottom of the inner cavity of the test bench 1 through the rotating bearing, the upper part of the auxiliary rotating shaft 49 realizes the relative or back-to-back movement of the two T-shaped plates 410 through the symmetrical reciprocating component 44, the top of the test bench 1 is provided with a moving groove, the top of the T-shaped plate 410 penetrates through and extends to the outside of the moving groove on the test bench 1, the surface of the T-shaped plate 410 realizes the horizontal movement along the left side and the right side through the sliding component 45, one end of the T-shaped plate 410 is fixedly connected with the test rod 411, the inside of the test rod 411 is provided with the extending measurement component 48 for the aperture of the valve rod groove on the valve plate, the surface of the driving rotating shaft 412 enables the driving rotating shaft 413 to rotate through the driving component 46, and the right end of the driving rotating shaft 413 is fixed with the right side wall of the inner cavity of the transmission box 2 through the rotating bearing, the surface of transmission pivot 413 and the inside that is located pre-pressing case 3 are provided with location and press and move subassembly 47, location is pressed and is moved subassembly 47 and be used for realizing the location to the valve plate, and keep the in-process of test to maintain the horizontally state, through being provided with aperture measuring mechanism 4, utilize driving motor 41's drive and cooperation to go up to subassembly 42, intermittent type subassembly 43 and transmission 46's transmission operation, make location press and move subassembly 47 and carry out the pre-compaction location to the valve plate, and drive test rod 411 on the T template 410 through reciprocating motion subassembly 44 and carry out relative movement, thereby realized valve plate location pre-compaction, the removal operation of test rod and the internal diameter measurement's of valve plate inside valve rod groove integration linkage operation, the efficiency of the test of butterfly valve plate aperture processing quality has been improved.

In the embodiment of the present invention, the steering assembly 42 includes a worm 42-1 installed on the output shaft of the driving motor 41, a worm wheel 42-2 is fixedly installed at the left end of the driving rotating shaft 412, and the worm 42-1 drives the worm wheel 42-2 engaged therewith to rotate.

In the embodiment of the invention, the intermittent assembly 43 comprises a half gear 43-1 fixedly mounted at the top end of a worm 42-1, the surface of the auxiliary rotating shaft 49 is fixedly connected with a full gear 43-2, the half gear 43-1 rotates to be meshed with the full gear 43-2 to drive the full gear 43-2 to rotate, the surface of the half gear 43-1 is connected with a convex column, the surface of the full gear 43-2 is provided with a convex plate, and the half gear 43-1 and the full gear 43-2 are meshed until the convex column rotates to be contacted with the convex plate, and the half gear 43-1 rotates for one circle each time to drive the full gear 43-2 to rotate for one circle.

In the embodiment of the invention, the reciprocating movement assembly 44 comprises a supporting rotating shaft 44-1, the bottom end of the supporting rotating shaft 44-1 is fixed with the bottom of the inner cavity of the test bench 1 through a rotating bearing, the surfaces of the supporting rotating shaft 44-1 and the auxiliary rotating shaft 49 are fixedly provided with meshing gears 44-2 which are meshed with each other, the top ends of the supporting rotating shaft 44-1 and the auxiliary rotating shaft 49 are both fixedly connected with a driving wheel 44-3, the surface of the driving wheel 44-3 is rotatably provided with a driving rod 44-4 through a rotating pin, one end of the driving rod 44-4 is rotatably connected with a driving block 44-5, and the mutually far sides of the two driving blocks 44-5 are connected with the opposite sides of the two T-shaped plates 410.

In the embodiment of the invention, the sliding assembly 45 comprises a pair of sliding rods 45-1, two ends of each sliding rod 45-1 are fixedly connected with the left side and the right side of the inner cavity of the test board 1, the surface of the T-shaped plate 410 is provided with a sliding groove 45-2, and the outer surface of each sliding rod 45-1 is in penetrating sliding connection with the inner surface of the corresponding sliding groove 45-2.

In the embodiment of the invention, the extension measurement assembly 48 comprises a positioning sensing piece 48-1, the positioning sensing piece 48-1 is electrically connected with an external computer control terminal, the surface of the testing rod 411 is provided with an extension groove 48-2, an arc plate 48-3 is fixedly installed inside the testing rod 411, an air cylinder 48-4 is fixedly installed inside the testing rod 411, a piston rod 48-5 is slidably connected inside the air cylinder 48-4, one end of the piston rod 48-5 is fixedly provided with a trapezoidal block 48-6, the bottom end of the positioning sensing piece 48-1 is fixedly connected with an extension rod 48-7 and penetrates below the arc plate 48-3, the bottom end of the extension rod 48-7 is fixedly connected with a triangular block 48-8, the surface of the extension rod 48-7 is sleeved with an extension spring 48-9, two ends of the extension spring 48-9 are fixedly connected with the opposite sides of the positioning sensing piece 48-1 and the arc plate 48-3, the trapezoidal block 48-6 is in contact with the surface of the triangular block 48-8, and the triangular block 48-8 is extruded by the trapezoidal block 48-6 in the moving process.

The driving motor 41, the air cylinder 48-4 and the positioning induction sheet 48-1 are all controlled to be opened and closed through an intelligent control system, the intelligent control system comprises a computer control terminal, a data measuring and calculating module and a data comparison module, the computer control terminal is controlled by a user, the output end of the computer control terminal is electrically connected with the electric ends of the driving motor 41, the air cylinder 48-4 and the positioning induction sheet 48-1, the computer control terminal is in bidirectional connection with the data comparison module, the output end of the positioning induction sheet 48-1 is connected with the input end of the data measuring and calculating module, the output end of the data measuring and calculating module is connected with the input end of the computer control terminal, and the data measuring and calculating module is used for measuring the distance between the positioning induction sheet 48-1 and the inner wall of the valve rod groove and transmitting the measured distance to the data measuring and calculating module and the data comparison module to achieve data comparison operation.

In the embodiment of the present invention, the driving assembly 46 includes a first chain wheel 46-1 and a second chain wheel 46-2, the first chain wheel 46-1 is fixedly installed on the surface of the driving shaft 412, the second chain wheel 46-2 is fixedly installed on the surface of the driving shaft 413, and the surfaces of the first chain wheel 46-1 and the second chain wheel 46-2 are drivingly connected through a chain belt 46-3.

In the embodiment of the invention, the positioning pressing assembly 47 comprises a convex circular ring 47-1 and a rotating plate 47-2 fixedly installed on the surface of a transmission rotating shaft 413, the surface of the rotating plate 47-2 is fixedly connected with a rotating shaft 47-3, the rotating shaft 47-3 slides in an arc groove of the convex circular ring 47-1, and the convex circular ring 47-1 is moved by connecting a limiting assembly 47-4 in the vertical direction, the bottom of the convex circular ring 47-1 is fixedly connected with a prepressing rod 47-5, the bottom end of the prepressing rod 47-5 extends to the bottom of the prepressing box 3 in a penetrating manner and is fixedly connected with a prepressing plate 47-6, the bottom of the prepressing plate 47-6 is provided with a positioning groove 47-7, and the positioning groove 47-7 is correspondingly matched with a bulge on the surface of a valve plate and positioned outside a valve rod groove, so as to realize the positioning pressing operation, the rotating shaft 47-3 on the rotating plate 47-2 is driven by the transmission rotating shaft 413 to slide in the arc groove of the convex circular ring 47-1 by driving the positioning pressing assembly 47-5 and the prepressing plate 47-6 to move downwards, so that the rotating shaft 47-7 and the bulge on the surface of the rotating plate 47-2 can be correspondingly moved to effectively detect the horizontal position of the valve plate, and the valve plate can accurately detect the data of the valve plate, and the valve plate 411.

In the embodiment of the invention, the limiting component 47-4 comprises a supporting rod 47-41 arranged on the inner wall of the pre-pressing box 3, one end of the supporting rod 47-41 is fixedly connected with a supporting ring 47-42, a limiting rod 47-43 is fixedly arranged at a convex ring at the top of the convex circular ring 47-1, and the limiting rod 47-43 is in penetrating sliding connection with the surface of the supporting ring 47-42.

Example 2

The difference from example 1 is:

the specific implementation mode of the intelligent control system is as follows:

when the positioning induction sheet 48-1 does not extend outwards, the outer surface of the positioning induction sheet is flush with the outer surface of the test rod 411, and when the positioning induction sheet extends outwards until the positioning induction sheet contacts with the inner wall of the valve rod groove of the valve plate, the determination of the distance after moving is realized, at the moment, the distance data between the positioning induction sheet 48-1 and the outer surface of the test rod 411 and the inner wall of the valve rod groove after contacting are transmitted to the computer control terminal, and the comparison operation of the distance data and the inner diameter data of the valve rod groove on the valve plate after the calculation of the test rod 411 and the standard data in the database is realized through a data comparison module in the computer control terminal;

the calculation formula for the measured inner diameter of the valve rod groove on the valve plate in the computer control terminal is as follows:

L=2f+R；

wherein L is the diameter of the inner ring of the valve rod groove on the valve plate, f is the distance between the positioning induction sheet 48-1 and the inner wall of the valve rod groove after the contact from the outer surface of the testing rod 411 to the inner wall of the valve rod groove in the measuring process, R is the diameter distance of the outer ring of the testing rod 411 in the testing equipment, and the distance unit during measurement is as follows: mm.

The standard data in the database is set as X error within +/-0.5 mm, and subsequent comparison is carried out in the error range, wherein when L is smaller than X-0.5mm, the aperture of a valve rod groove of a produced product is small, secondary processing can be carried out for adjustment, when L = X +/-0.5 mm, the inner diameter of the valve rod groove in the finally obtained product quality meets the requirement of a required standard, when L is larger than X +0.5mm, the aperture of the valve rod groove of the produced product is large, subsequent use can be influenced, and the problems of shaking and poor sealing performance after valve plate impact exist.

The working principle of the invention is as follows: firstly, a butterfly valve plate to be tested is placed on a test bench 1, then a driving motor 41 is started, the driving motor 41 is utilized to drive a worm 42-1 in a steering assembly 42 to rotate, at the moment, a worm wheel 42-2 drives a worm wheel 42-2 and a driving rotating shaft 412 to rotate, then the driving rotating shaft 412 drives a driving rotating shaft 413 to rotate through a first chain wheel 46-1, a second chain wheel 46-2 and a chain belt 46-3 in the driving assembly 46, at the moment, the driving rotating shaft 413 drives a rotating shaft 47-3 on a rotating plate 47-2 to slide on the inner side of an arc groove of a convex ring 47-1, so that the convex ring 47-1 realizes the sliding operation in the vertical direction under the limiting action of a supporting rod 47-41 and a supporting ring 47-42, and accordingly drives a pre-pressing rod 47-5 and a pre-pressing plate 47-6 to move downwards, and the positioning groove 47-7 is correspondingly matched with a bulge on the surface of the valve plate and positioned outside the valve rod groove, and accordingly the horizontal pre-pressing operation is realized;

meanwhile, the rotation of the worm 42-1 synchronously drives the half gear 43-1 to rotate, the half gear 43-1 rotates one circle at a time to drive the full gear 43-2 to rotate for half a circle, so that the auxiliary rotating shaft 49 rotates, at the moment, the auxiliary rotating shaft 49 and the surface of the supporting rotating shaft 44-1 are meshed through the meshing gear 44-2 to enable the driving wheel 44-3 at the top end to rotate reversely, then the driving wheel 44-3 drives the driving rod 44-4 and the driving block 44-5 to move, and the two T-shaped plates 410 move relatively, at the moment, the T-shaped plates 410 drive the testing rod 411 to move towards the valve rod grooves at the two sides of the valve plate;

when the valve plate is to be moved to the inside of the valve rod groove, the air cylinder 48-4 in the testing rod 411 is started to drive the piston rod 48-5 to move, the piston rod 48-5 drives the trapezoidal block 48-6 to move, the trapezoidal block 48-6 is enabled to be in contact with the inclined surface of the triangular block 48-8 and extrude the triangular block 48-8 to move, so that the extension rod 48-7 and the positioning induction sheet 48-1 are driven to move outwards on the extension groove 48-2 until the trapezoidal block is in contact with the inner wall of the valve rod groove of the valve plate, distance data between the positioning induction sheet 48-1 and the outer surface of the testing rod 411 and the inner wall of the valve rod groove are transmitted to the computer control terminal, and the comparison operation of the distance data and the inner diameter data of the valve rod groove on the valve plate after the calculation of the testing rod 411 and standard data in a database is realized through a data comparison module in the computer control terminal;

examples

The intelligent control system also comprises a calibration acquisition unit, wherein the calibration acquisition unit is used for acquiring the dynamic track curve of the positioning induction sheet 48-1 in the running process of the equipment and sending the dynamic track curve to the data storage unit for storage; the information of the dynamic track curve is generated by induction of a displacement sensor;

the data analysis unit extracts a dynamic track curve of the positioning induction sheet 48-1, superposes and compares the dynamic track curve with a preset track, obtains a difference value between the dynamic track curve and the preset track, obtains an average value and a standard difference value of absolute values of the difference value, correspondingly generates a curve mean variable and a curve fluctuation variable, and sends the curve mean variable and the curve fluctuation variable to the feedback integration unit;

the interference acquisition unit is used for acquiring the vibration frequency mean value and the vibration amplitude mean value at the position of the positioning induction sheet 48-1 and sending the vibration frequency mean value and the vibration amplitude mean value to the feedback integration unit, and the vibration frequency and the vibration amplitude are obtained by induction of the vibration sensor;

the feedback integration unit is used for receiving the average value, the standard deviation value, the vibration frequency average value and the vibration amplitude average value and obtaining a feedback interference factor through normalization processing,

the specific process of the normalization processing is as follows:

marking the curve average variable, the curve fluctuation variable, the vibration frequency mean value and the vibration amplitude mean value as Q, W, E and R respectively through formulas

Obtaining a feedback interference factor A; wherein e1, e2, e3, e4, e5 and e6 are weight correction factors, the weight correction factors enable the calculated result to be closer to the true value, and e1+ e2+ e3+ e4+ e5+ e6=19.76; e1 > e3 > e2 > e4 > e5 > e6;

and then quantizing and averaging the feedback interference factors of a preset number to obtain feedback interference coefficients, comparing the feedback interference coefficients with the preset coefficients, generating an alarm signal when the feedback interference coefficients are larger than the preset coefficient values, and performing alarm processing operation when the alarm signal is generated, wherein the alarm processing operation is generally to overhaul and maintain corresponding parts of the equipment step by step, so that the interference feedback quantity quantization in the motion process of the parts is realized on one hand, and the auxiliary reminding function of maintenance is realized on the other hand.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

Claims

1. The quality testing device for the valve plate of the butterfly valve comprises a testing table (1), wherein a prepressing box (3) is fixedly arranged on the right side of the top of the testing table (1) through a connecting transmission box (2), and is characterized in that an aperture measuring mechanism (4) is arranged inside the testing table (1), and the aperture measuring mechanism (4) is used for testing the valve rod groove of the valve plate of the butterfly valve after production;

the aperture measuring mechanism (4) comprises a driving motor (41) installed at the bottom of an inner cavity of a test bench (1), one end of an output shaft of the driving motor (41) is connected with a steering assembly (42) through a coupler, the top of the steering assembly (42) drives an auxiliary rotating shaft (49) to rotate through an intermittent assembly (43), two T-shaped plates (410) are oppositely or reversely moved above the auxiliary rotating shaft (49) through a symmetrical reciprocating assembly (44), the T-shaped plates (410) horizontally move along the left side and the right side through a sliding assembly (45), one end of each T-shaped plate (410) is fixedly connected with a test rod (411), an extension measuring assembly (48) used for the aperture of a valve rod groove in a valve plate is arranged inside the test rod (411), the driving rotating shaft (412) drives the driving rotating shaft (413) to rotate through a transmission assembly (46), and a positioning pressing assembly (47) is arranged inside a prepressing box (3) on the surface of the driving rotating shaft (413).

2. The quality testing device for the valve plate of the butterfly valve is characterized in that the steering component (42) comprises a worm (42-1) which is arranged on an output shaft of the driving motor (41), a worm wheel (42-2) is fixedly arranged at the left end of the driving rotating shaft (412), and the worm (42-1) drives the worm wheel (42-2) which is meshed with the worm wheel to rotate.

3. The quality testing device for the valve plate of the butterfly valve is characterized in that the intermittent assembly (43) comprises a half gear (43-1) fixedly mounted at the top end of a worm (42-1), a full gear (43-2) is fixedly connected to the surface of the auxiliary rotating shaft (49), and the half gear (43-1) can drive the full gear (43-2) to rotate when rotating to be meshed with the full gear (43-2).

4. The butterfly valve plate quality testing device of claim 1, wherein the reciprocating assembly (44) comprises a supporting rotating shaft (44-1), the surfaces of the supporting rotating shaft (44-1) and the auxiliary rotating shaft (49) are fixedly provided with meshed gears (44-2) which are meshed with each other, the top ends of the supporting rotating shaft (44-1) and the auxiliary rotating shaft (49) are fixedly connected with driving wheels (44-3), the surface of the driving wheels (44-3) is rotatably provided with driving rods (44-4) through rotating pins, one end of each driving rod (44-4) is rotatably connected with a driving block (44-5), and the far sides of the two driving blocks (44-5) are engaged with the opposite sides of the two T-shaped plates (410).

5. The quality testing device for the valve plate of the butterfly valve according to claim 1, wherein the sliding assembly (45) comprises a pair of sliding rods (45-1), two ends of each sliding rod (45-1) are fixedly connected with the left side and the right side of the inner cavity of the testing table (1), a sliding groove (45-2) is formed in the surface of the T-shaped plate (410), and the surface of each sliding rod (45-1) is connected with the inner surface of the corresponding sliding groove (45-2) in a penetrating and sliding mode.

6. The butterfly valve plate quality testing device of claim 1, wherein the extension measuring assembly (48) comprises a positioning sensing piece (48-1), the positioning sensing piece (48-1) is electrically connected with an external computer control terminal, an extension groove (48-2) is formed in the surface of the testing rod (411), an arc plate (48-3) is fixedly mounted inside the testing rod (411), an air cylinder (48-4) is fixedly mounted inside the testing rod (411), a piston rod (48-5) is slidably connected inside the air cylinder (48-4), a trapezoidal block (48-6) is fixedly mounted at one end of the piston rod (48-5), an extension rod (48-7) is fixedly connected to the bottom end of the positioning sensing piece (48-1) and penetrates below the arc plate (48-3), a triangular block (48-8) is fixedly connected to the bottom end of the extension rod (48-7), an extension spring (48-9) is sleeved on the surface of the extension rod (48-7), two ends of the extension spring (48-9) are in contact with the positioning sensing piece (48-1) and the triangular block (48-8) and the triangular block (48-6) is connected with the arc plate (48-6) in the extrusion process The transmission assembly (46) comprises a first chain wheel (46-1) and a second chain wheel (46-2), the first chain wheel (46-1) is fixedly installed on the surface of the driving rotating shaft (412), the second chain wheel (46-2) is fixedly installed on the surface of the transmission rotating shaft (413), and the first chain wheel (46-1) and the second chain wheel (46-2) are in transmission connection through a chain belt (46-3).

7. The quality testing device for the valve plate of the butterfly valve as claimed in claim 6, wherein the outer surface of the positioning induction sheet (48-1) is flush with the outer surface of the testing rod (411) when the positioning induction sheet does not extend outwards, the distance after movement is determined when the positioning induction sheet extends outwards to contact with the inner wall of the valve rod groove of the valve plate, the distance data between the positioning induction sheet (48-1) and the outer surface of the testing rod (411) and the inner wall of the valve rod groove is transmitted to the computer control terminal, and the comparison operation of the distance data and the inner diameter data of the valve rod groove on the valve plate after the calculation of the testing rod (411) and the standard data in the database is realized through a data comparison module in the computer control terminal;

L=2f+R；

wherein L is the diameter of the inner ring of the valve rod groove on the valve plate, f is the distance between the positioning induction sheet (48-1) and the outer surface of the testing rod (411) and the inner wall of the valve rod groove after contact in the measuring process, R is the diameter distance of the outer ring of the testing rod (411), and the distance unit in measurement is as follows: mm.

8. The butterfly valve plate quality testing device of claim 1, further comprising a calibration acquisition unit, a data analysis unit, an interference acquisition unit and a feedback integration unit;

the calibration acquisition unit is used for acquiring a dynamic track curve of the positioning induction sheet (48-1) in the operation process of the equipment and sending the dynamic track curve to the data storage unit for storage; the data analysis unit extracts a dynamic track curve of the positioning induction sheet (48-1), superposes and compares the dynamic track curve with a preset track, obtains a difference value between the dynamic track curve and the preset track, obtains an average value and a standard difference value of absolute values of the difference value, correspondingly generates a curve mean variable and a curve fluctuation variable, and sends the curve mean variable and the curve fluctuation variable to the feedback integration unit;

the interference acquisition unit is used for acquiring the vibration frequency mean value and the vibration amplitude mean value at the position of the positioning induction sheet (48-1) and sending the vibration frequency mean value and the vibration amplitude mean value to the feedback integration unit; the feedback integration unit is used for receiving the average value, the standard deviation value, the vibration frequency average value and the vibration amplitude average value, obtaining feedback interference factors through normalization processing, then carrying out quantitative averaging on the feedback interference factors of a preset number to obtain feedback interference coefficients, comparing the feedback interference coefficients with the preset coefficients, generating alarm signals when the feedback interference coefficients are larger than the preset coefficient values, and carrying out alarm processing operation when the alarm signals are generated.

9. The quality testing device for the valve plate of the butterfly valve according to claim 1, wherein the positioning pressing assembly (47) comprises a convex circular ring (47-1) and a rotating plate (47-2) fixedly mounted on the surface of the transmission rotating shaft (413), the surface of the rotating plate (47-2) is fixedly connected with a rotating shaft (47-3), the rotating shaft (47-3) slides inside a circular arc groove of the convex circular ring (47-1), the convex circular ring (47-1) is enabled to move in the vertical direction through connecting a limiting assembly (47-4), the bottom of the convex circular ring (47-1) is fixedly connected with a pre-pressing rod (47-5), the bottom end of the pre-pressing rod (47-5) extends to the bottom of the pre-pressing box (3) in a penetrating manner and is fixedly connected with a pre-pressing plate (47-6), and the bottom of the pre-pressing plate (47-6) is provided with a positioning groove (47-7).

10. The quality testing device for the valve plate of the butterfly valve according to claim 9, wherein the limiting assembly (47-4) comprises a supporting rod (47-41) installed on the inner wall of the pre-pressing box (3), one end of the supporting rod (47-41) is fixedly connected with a supporting ring (47-42), a limiting rod (47-43) is fixedly installed at the convex ring at the top of the convex circular ring (47-1), and the limiting rod (47-43) is connected with the supporting ring (47-42) in a penetrating and sliding manner.