CN115900620B - Butterfly valve plate quality testing device - Google Patents

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 bench, wherein a pre-pressing box is fixedly arranged on the right side of the top of the test bench through a connecting transmission box, an aperture measuring mechanism is arranged in the test bench and is used for realizing test operation on 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 bench, and the driving motor is used for driving the driving motor and matching with the transmission operation of an upper steering assembly, an intermittent assembly and the transmission assembly to enable a positioning pressing assembly to pre-press and position the valve plate, and a reciprocating assembly is used for driving a test rod on a T-shaped plate to relatively move, so that the test efficiency of valve plate positioning pre-pressing, test rod moving operation and integrated linkage operation of valve rod inner diameter measurement on the valve rod groove inside the valve plate is realized, and the test efficiency of butterfly valve plate aperture processing quality testing is improved.

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 reciprocate by about 90 degrees to open, close or adjust the medium flow, and has the advantages of simple structure, small volume, light weight, material consumption saving, small installation size, small driving moment, simple and rapid operation, good flow adjusting function and closing sealing property, and is mainly composed of 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.

The quality test of the valve plate of the butterfly valve is not limited to the quality test of the butterfly valve, and the tightness of the connection between the valve rod and the placing groove arranged in the center of the valve plate also causes the influence of the tightness of the butterfly valve, so that the following problems exist in the process of detecting the quality of the connection sealing of the valve plate:

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

Therefore, we propose a butterfly valve plate quality testing device to solve the above problems.

Disclosure of Invention

The invention aims to provide a quality testing device for a butterfly valve plate, which aims to solve the problems that the testing efficiency is low because different procedures are needed to realize operation when the positioning and clamping of the existing valve plate and the aperture measurement of a valve rod groove of the valve plate are proposed in the prior art, and the center of a testing rod and the center of the valve rod groove of the valve plate have certain deviation in the test operation.

In order to achieve the above purpose, the present invention provides the following technical solutions:

the utility model provides a butterfly valve plate quality testing arrangement, includes the testboard, the right side at testboard top is through connecting transmission case fixed mounting has the pre-compaction case, the inside of testboard is provided with aperture measuring mechanism, and aperture measuring mechanism is used for realizing testing operation to the valve rod groove of butterfly valve plate after the production, including installing in the driving motor of testboard inner chamber bottom in the aperture measuring mechanism, the one end of driving motor output shaft has the steering assembly through the coupling joint and makes the drive pivot rotate, the top of steering assembly realizes the rotation of vice dynamic spindle through intermittent type subassembly, the top of vice dynamic spindle realizes through being provided with symmetrical reciprocating motion subassembly that two T templates carry out relative or the removal of being on the back of the body, and the surface of T template realizes horizontal removal of side through sliding component, the one end fixedly connected with test rod of T template, the inside of test rod is provided with the extension measurement subassembly that is used for valve rod groove aperture on the valve plate, the surface of drive pivot makes the drive pivot rotate through the drive assembly, the inside that lies in the case is provided with location dynamic assembly.

In a further embodiment, the steering assembly comprises a worm arranged on an output shaft of the driving motor, a worm wheel is arranged at the left end of the driving rotating shaft, and the worm wheel meshed with the worm wheel is driven to rotate by the worm.

In a further embodiment, the intermittent assembly comprises a half gear fixedly arranged at the top end of the worm, the surface of the auxiliary moving rotating shaft is fixedly connected with a full gear, and the half gear drives the full gear to rotate when being meshed with the full gear.

In a further embodiment, the reciprocating assembly comprises a supporting rotating shaft, the surfaces of the supporting rotating shaft and 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 surfaces of the driving wheels are rotatably provided with driving rods through rotating pins, one ends of the driving rods are rotatably connected with driving blocks, and the mutually far 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 table, the surface of the T-shaped plate is provided with a sliding groove, and the surface of each sliding rod and the inner surface of each sliding groove penetrate through and slide.

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

In a further embodiment, when the positioning sensing piece does not extend outwards, the outer surface of the positioning sensing piece is flush with the outer surface of the test rod, and when the positioning sensing piece extends outwards until the positioning sensing piece contacts with the inner wall of the valve rod groove of the valve plate, the determination of the distance after movement is realized, at the moment, distance data between the outer surface of the test rod and the inner wall of the valve rod groove after contact 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 calculated by the test rod and standard data in a database is realized through a data comparison module in the computer control terminal;

the calculation formula of the inner diameter of the valve rod groove on the valve plate for measurement 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 outer surface of the positioning sensing piece and the inner wall of the valve rod groove after being contacted in the measuring process, R is the outer ring diameter distance of the testing rod, and the distance unit during measurement is: mm.

In a further embodiment, the transmission assembly comprises a first sprocket and a second sprocket, wherein the first sprocket is fixedly arranged on the surface of the driving rotating shaft, the second sprocket is fixedly arranged on the surface of the driving rotating shaft, and the surfaces of the first sprocket and the second sprocket are in transmission connection through a chain belt.

In a further embodiment, the positioning pressing assembly comprises a convex circular ring and a rotating plate fixedly arranged on the surface of the transmission rotating shaft, the rotating shaft is fixedly connected with a rotating shaft, the rotating shaft slides on the inner side of an arc groove of the convex circular ring, the convex circular ring is enabled to realize moving operation in the vertical direction through a connecting limiting assembly, the bottom of the convex circular ring is fixedly connected with a pre-pressing rod, the bottom of the pre-pressing rod penetrates through the bottom of the pre-pressing box and is fixedly connected with a pre-pressing plate, and the bottom of the pre-pressing plate is provided with a positioning groove.

In a further embodiment, the limiting assembly comprises a supporting rod arranged on the inner wall of the pre-pressing 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 ring, and the limiting rod is in penetrating sliding connection with the surface of the supporting ring;

further, 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 piece in the running 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, performs superposition comparison on the dynamic track curve and a preset track, acquires a difference value between the dynamic track curve and the preset track, acquires an average value and a standard difference value of an absolute value of the difference value, correspondingly generates a curve average variable and a curve fluctuation variable, and sends the curve average variable and the curve fluctuation variable to the feedback integration unit;

the interference acquisition unit is used for acquiring the vibration frequency average value and the vibration amplitude average value at the positioning induction sheet and sending the vibration frequency average value and the vibration amplitude average 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, carrying out quantization averaging on the feedback interference factors with preset quantity to obtain feedback interference coefficients, comparing the feedback interference coefficients with 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 cooperate steering assembly, intermittent type subassembly and drive assembly's transmission operation for the location pressing subassembly carries out the pre-compaction to the valve plate and fixes a position, and carries out relative movement through the test rod on the reciprocating motion subassembly drive T template, with this integrated linkage operation that has realized valve plate location pre-compaction, test rod's removal operation and to the inside valve rod groove internal diameter measurement of valve plate, has improved the test efficiency of butterfly valve plate aperture processingquality test.

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

3. Through being provided with location pressing subassembly, utilize the transmission pivot to drive the rotation axis on the rotor plate and slide in the circular arc inslot side of bulge loop, driven the downward removal of pre-compression pole and pre-compression board for the corresponding adaptation in projection department in constant head tank and valve plate surface and the lie in the valve rod groove outside realizes horizontal pre-compaction operation, so that the valve plate keeps the level when detecting, can pinpoint the center department that the test rod removed moreover, thereby improve the accuracy of the data of follow-up test effectively.

According to the invention, a dynamic track curve of the induction piece is positioned in the running process of the equipment and analyzed to generate a curve average variable and a curve fluctuation variable, then the curve average variable and the curve fluctuation variable are combined with a normalization analysis to obtain a feedback interference factor through collecting a vibration frequency average value and a vibration amplitude average value, the greater the feedback interference factor is, the worse the running state of the equipment is indicated in a preset time, when the running state of the equipment is worse, the equipment test precision is reflected to be reduced, the feedback interference factor is obtained through quantized average of a plurality of feedback interference factors, the feedback interference factor is compared with the preset factor, when the feedback interference factor is larger than the preset coefficient value, an alarm signal is generated, and an alarm processing operation is carried out when the alarm signal is generated, so that an alarm reminding function is carried out when the running of the part reaches the preset alarm value.

Drawings

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

FIG. 2 is a schematic perspective sectional structure of the pre-pressing box in the invention;

FIG. 3 is a schematic view of an internal linkage three-dimensional structure in the present invention;

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

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

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

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

FIG. 8 is an enlarged view of the part of FIG. 7B according to the present invention;

FIG. 9 is a perspective view of a positioning press assembly of the present invention;

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

In the figure: 1. a test bench; 2. a transmission case; 3. a pre-pressing box; 4. an aperture measuring mechanism; 41. a driving motor; 42. a steering assembly; 42-1, a worm; 42-2, worm gear; 43. an intermittent assembly; 43-1, half gear; 43-2, all gear; 44. a reciprocating assembly; 44-1, a supporting rotating shaft; 44-2, a meshing gear; 44-3, a driving wheel; 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, chain belts; 47. positioning the pressing assembly; 47-1, a convex ring; 47-2, rotating plate; 47-3, a rotation axis; 47-4, a limiting assembly; 47-41, supporting rods; 47-42, support ring; 47-43, a limit rod; 47-5, pre-pressing the rod; 47-6, pre-pressing plate; 47-7, positioning grooves; 48. an extension measurement assembly; 48-1, positioning the induction piece; 48-2, an extension groove; 48-3, arc plates; 48-4, an air cylinder; 48-5, a piston rod; 48-6, trapezoid blocks; 48-7, an extension rod; 48-8, triangular blocks; 48-9, extending the spring; 49. an auxiliary moving shaft; 410. t-shaped plates; 411. a test rod; 412. driving the rotating shaft; 413. and (5) driving the rotating shaft.

Detailed Description

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

Referring to fig. 1-10, in an embodiment of the present invention, a quality testing device 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 provided in the testing table 1, the aperture measuring mechanism 4 is used for testing 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 three asynchronous motors, the driving motor 41 is electrically connected with an external power supply, and the driving motor 41 is controlled by an external computer control terminal to perform an opening and closing operation, one end of an output shaft of the driving motor 41 is connected with a steering assembly 42 through a coupling, so that a driving spindle 412 rotates, the right end of the driving spindle 412 is fixed with the right side wall of the inner cavity of the transmission box 2 through a rotating bearing, the top of the steering assembly 42 realizes rotation of an auxiliary spindle 49 through an intermittent assembly 43, the bottom end of the auxiliary spindle 49 is fixed with the bottom of the inner cavity of the testing table 1 through the rotating bearing, two opposite phase-shifting assemblies 44 are provided on the auxiliary spindle 49 realize that two opposite phase-shifting assemblies 410 are symmetrically arranged on the top of the auxiliary spindle 49 through a reciprocating motion assembly 44, the two opposite T spindles 410 are arranged to move opposite to each other, the top of the test spindle 410 is connected with the top of the test spindle 410 through a horizontal spindle 410 through a sliding spindle 410, the upper test spindle 410 extends to the top of the test spindle 410 is arranged opposite to the test spindle 410, and the top is extended to the test spindle 410 is horizontally, and the test spindle 410 is extended to the top is opposite to the test spindle 410 through the upper side is mounted to the test spindle 410 through the test spindle 410, and has a test spindle 410, the right end of the transmission rotating shaft 413 is fixed with the right side wall of the inner cavity of the transmission case 2 through a rotating bearing, the surface of the transmission rotating shaft 413 and the inside of the pre-pressing case 3 are provided with a positioning pressing assembly 47, the positioning pressing assembly 47 is used for realizing positioning of a valve plate and maintaining of a horizontal state in the testing process, through the arrangement of the aperture measuring mechanism 4, the valve plate is pre-pressed and positioned by the positioning pressing assembly 47 by utilizing the driving of the driving motor 41 and the transmission operation of the upper steering assembly 42, the intermittent assembly 43 and the transmission assembly 46, and the test rod 411 on the T-shaped plate 410 is driven to relatively move by the reciprocating assembly 44, so that the integrated linkage operation of positioning pre-pressing of the valve plate, moving operation of the test rod and inner diameter measurement of a valve rod groove inside the valve plate is realized, and the testing efficiency of the aperture processing quality test of the butterfly valve plate is improved.

In the embodiment of the invention, the steering assembly 42 comprises a worm 42-1 arranged on the output shaft of the driving motor 41, the left end of the driving rotating shaft 412 is fixedly provided with a worm wheel 42-2, and the worm 42-1 is driven to rotate the worm wheel 42-2 meshed with the worm wheel.

In the embodiment of the invention, the intermittent assembly 43 comprises a half gear 43-1 fixedly arranged at the top end of a worm 42-1, a full gear 43-2 is fixedly connected to the surface of a secondary movable rotating shaft 49, the full gear 43-2 is driven to rotate when the half gear 43-1 rotates to be meshed with the full gear 43-2, a convex column is connected to the surface of the half gear 43-1, a convex plate is arranged on the surface of the full gear 43-2, and the meshing operation of the half gear 43-1 and the full gear 43-2 is realized until the convex column rotates to be contacted with the convex plate, and the half gear 43-1 rotates one circle each time to drive the full gear 43-2 to rotate for half circle.

In the embodiment of the invention, the reciprocating 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 a secondary moving rotating shaft 49 are fixedly provided with meshed gears 44-2, the top ends of the supporting rotating shaft 44-1 and the secondary moving rotating shaft 49 are fixedly connected with driving wheels 44-3, the surfaces of the driving wheels 44-3 are 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 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, both ends of the sliding rods 45-1 are fixedly connected with the left side and the right side of the inner cavity of the test bench 1, the surface of the T-shaped plate 410 is provided with a sliding groove 45-2, and the outer surface of the sliding rod 45-1 is in penetrating sliding connection with the inner surface of the 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, an extension groove 48-2 is formed in the surface of the test rod 411, an arc plate 48-3 is fixedly arranged in the test rod 411, an air cylinder 48-4 is fixedly arranged in the test rod 411, a piston rod 48-5 is slidingly connected in the air cylinder 48-4, one end of the piston rod 48-5 is fixedly provided with a trapezoid 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 triangle block 48-8, 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 fixedly connected with the positioning sensing piece 48-1 and the opposite side of the arc plate 48-3, the trapezoid block 48-6 is in contact with the surface of the triangle block 48-8, and the trapezoid block 48-6 extrudes the triangle block 48-8 in the moving process.

The driving motor 41, the air cylinder 48-4 and the positioning sensing piece 48-1 all realize opening and closing control operation 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 sensing piece 48-1, the computer control terminal is in bidirectional connection with the data comparison module, the output end of the positioning sensing piece 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 sensing piece 48-1 and the inner wall of the valve rod groove and transmitting the distance to the data measuring and calculating module to realize data comparison operation.

In the embodiment of the present invention, the transmission assembly 46 includes a first sprocket 46-1 and a second sprocket 46-2, the first sprocket 46-1 is fixedly mounted on the surface of the driving shaft 412, the second sprocket 46-2 is fixedly mounted on the surface of the transmission shaft 413, and the surfaces of the first sprocket 46-1 and the second sprocket 46-2 are in transmission connection through the chain belt 46-3.

In the embodiment of the invention, the positioning and pressing assembly 47 comprises a convex circular ring 47-1 and a rotating plate 47-2 fixedly arranged on the surface of a transmission rotating shaft 413, a rotating shaft 47-3 is fixedly connected to the surface of the rotating plate 47-2, the rotating shaft 47-3 slides inside an arc groove of the convex circular ring 47-1, the convex circular ring 47-1 vertically slides inside the arc groove of the convex circular ring 47-1, a pre-pressing rod 47-5 is fixedly connected to the bottom of the convex circular ring 47-1, the bottom end of the pre-pressing rod 47-5 penetrates through the bottom of the pre-pressing box 3 and is fixedly connected with a pre-pressing plate 47-6, a positioning groove 47-7 is formed in the bottom of the pre-pressing plate 47-6 and is correspondingly matched with the surface of a valve plate and a boss located outside the valve rod groove, so that the positioning and pressing operation can be realized, the rotating shaft 47-3 on the convex circular ring 47-1 is driven by the transmission rotating shaft 413 to slide inside the arc groove, the pre-pressing assembly 47-5 and the pre-pressing plate 47-6 are driven to move downwards, the pre-pressing rod 47-6 is enabled to be positioned on the surface of the valve plate and the corresponding to the boss on the outer side of the valve plate groove, and the valve plate is horizontally matched with the boss, and the boss is horizontally matched with the boss on the surface of the valve plate when the valve plate is accurately detected, and the boss is horizontally and the boss is positioned to be horizontally matched with the boss corresponding to the boss and the boss position and the boss to be horizontally matched with the boss.

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 position at the top of the convex 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 that:

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

when the positioning sensing piece 48-1 does not extend outwards, the outer surface of the positioning sensing piece is flush with the outer surface of the test rod 411, and when the positioning sensing piece is extended outwards until the positioning sensing piece contacts with the inner wall of a valve rod groove of the valve plate, the distance after movement is determined, at the moment, distance data between the positioning sensing piece 48-1 and the valve rod groove after the positioning sensing piece is contacted with the inner wall of the valve rod groove is transmitted to a 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 calculated by the test rod 411 and standard data in a database is realized through a data comparison module in the computer control terminal;

the calculation formula of the inner diameter of the valve rod groove on the valve plate measured 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 outer surface of the test rod 411 and the inner wall of the valve rod groove after the positioning sensing piece 48-1 contacts in the measuring process, R is the diameter distance of the outer ring of the test rod 411 in the test equipment, and the unit of the distance during measurement is as follows: mm.

The standard data in the database are set to be X error of +/-0.5 mm, and subsequent comparison is calculated up and down in the error range, wherein when L is smaller than X-0.5mm, namely the aperture of a valve rod groove of a product after production is smaller, secondary processing can be carried out for adjustment, when L=X +/-0.5 mm, namely the inner diameter of the valve rod groove in the final product quality meets the required standard requirement, when L is larger than X+0.5mm, namely the aperture of the valve rod groove of the product after production is larger, the subsequent use is influenced, and the problems that the valve plate is rocked after impact and the sealing performance is poor 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, a worm 42-1 in a steering assembly 42 is driven by the driving motor 41 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 transmission 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 a transmission assembly 46, at the moment, the transmission rotating shaft 413 drives a rotating shaft 47-3 on a rotating plate 47-2 to slide inside a circular arc groove of a convex ring 47-1, so that the convex ring 47-1 realizes 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 a positioning groove 47-7 is correspondingly matched with a boss on the surface of the valve plate and positioned outside the valve rod groove, so that horizontal pre-pressing operation is realized;

meanwhile, the rotation of the worm 42-1 synchronously drives the rotation of the half gear 43-1, and each time the half gear 43-1 rotates one circle to drive the full gear 43-2 to rotate one half circle, so that the auxiliary moving rotating shaft 49 rotates, at the moment, the surfaces of the auxiliary moving rotating shaft 49 and the supporting rotating shaft 44-1 are meshed through the meshing gear 44-2 to reversely rotate the driving wheel 44-3 at the top end, and 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 relatively move, 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 rod is about to move into the valve rod groove, the cylinder 48-4 in the test rod 411 is started to drive the piston rod 48-5 to move, the piston rod 48-5 drives the trapezoid block 48-6 to move, the trapezoid block 48-6 contacts with the inclined surface of the triangle block 48-8 and extrudes the triangle block 48-8 to move, so that the extension rod 48-7 and the positioning sensing piece 48-1 are driven to move outwards on the extension groove 48-2 until contacting with the valve rod groove inner wall of the valve plate, at the moment, distance data between the outer surface of the test rod 411 and the valve rod groove inner wall after contacting 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 calculated by the test rod 411 and standard data in a database is realized through the data comparison module in the computer control terminal;

example 3

The intelligent control system also comprises a calibration acquisition unit, wherein the calibration acquisition unit is used for acquiring a dynamic track curve of the positioning sensing piece 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 sensing a displacement sensor;

the data analysis unit extracts the dynamic track curve of the positioning sensing piece 48-1, performs superposition comparison on the dynamic track curve and a preset track, acquires a difference value between the dynamic track curve and the preset track, acquires an absolute value average value and a standard difference value of the difference value, correspondingly generates a curve average variable and a curve fluctuation variable, and sends the curve average variable and the curve fluctuation variable to the feedback integration unit;

the interference acquisition unit is used for acquiring the vibration frequency average value and the vibration amplitude average value of the positioning induction piece 48-1 and sending the vibration frequency average value and the vibration amplitude average value to the feedback integration unit, wherein the vibration frequency and the vibration amplitude are obtained through 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 normalization treatment is as follows:

marking the curve average variable, curve fluctuation variable, vibration frequency mean value and vibration amplitude mean value as Q, W, E and R respectively, and carrying out a formula

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

and then carrying out quantization and averaging on a preset number of feedback interference factors to obtain feedback interference coefficients, comparing the feedback interference coefficients with 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, wherein the alarm processing operation is usually to maintain and repair corresponding parts of the equipment step by step, so that the quantization of the interference feedback quantity in the part movement process is realized, and the auxiliary reminding function of maintenance inspection is realized.

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 characteristics 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 disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (10)

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

the pore diameter measuring mechanism (4) comprises a driving motor (41) arranged at the bottom of an inner cavity of the 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 a secondary moving rotating shaft (49) to rotate through an intermittent assembly (43), two T-shaped plates (410) are oppositely or reversely moved above the secondary moving rotating shaft (49) through a symmetrical reciprocating moving assembly (44), the T-shaped plates (410) are horizontally moved 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) for the pore diameter of a valve rod groove on a valve plate is arranged inside each test rod (411), the driving rotating shaft (412) drives a transmission rotating shaft (413) to rotate through a transmission assembly (46), and a positioning pressing assembly (47) is arranged on the surface of the transmission rotating shaft (413) and inside the pre-pressing box (3);

the extension measurement assembly (48) comprises a positioning induction piece (48-1), the positioning induction piece (48-1) is electrically connected with an external computer control terminal, an extension groove (48-2) is formed in the surface of the test rod (411), an arc plate (48-3) is fixedly arranged in the test rod (411), an air cylinder (48-4) is fixedly arranged in the test rod (411), a piston rod (48-5) is slidably connected in the air cylinder (48-4), a trapezoid block (48-6) is fixedly arranged at one end of the piston rod (48-5), an extension rod (48-7) is fixedly connected at the bottom end of the positioning induction piece (48-1) and penetrates below the arc plate (48-3), a triangular block (48-8) is fixedly connected at the bottom end of the extension rod (48-7), extension springs (48-9) are sleeved on the surface of the extension rod (48-7), two ends of each extension spring (48-9) are fixedly connected with the opposite sides of the positioning induction piece (48-1) and the arc plate (48-3) and the trapezoid block (48-8) in contact with the arc plate (48-8), while the trapezoid block (48-6) presses the triangular block (48-8) during movement.

2. The device for testing the quality of the valve plate of the butterfly valve according to claim 1, wherein the steering assembly (42) comprises a worm (42-1) arranged on an output shaft of the driving motor (41), a worm wheel (42-2) is fixed at the left end of the driving rotating shaft (412), and the worm (42-1) drives the worm wheel (42-2) meshed with the worm wheel to rotate.

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

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

5. The device for testing the quality of 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 test bench (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 in penetrating sliding connection with the inner surface of the corresponding sliding groove (45-2).

6. The butterfly valve plate quality testing device of claim 1, wherein the transmission assembly (46) comprises a first sprocket (46-1) and a second sprocket (46-2), the first sprocket (46-1) is fixedly mounted on the surface of the driving shaft (412), the second sprocket (46-2) is fixedly mounted on the surface of the transmission shaft (413), and the first sprocket (46-1) and the second sprocket (46-2) are in transmission connection through a chain belt (46-3).

7. The device for testing the quality of a valve plate of a butterfly valve according to claim 6, wherein when the positioning sensing piece (48-1) does not extend outwards, the outer surface of the positioning sensing piece is flush with the outer surface of the test rod (411), and when the positioning sensing piece is extended outwards to be in contact with the inner wall of a valve rod groove of the valve plate, the determination of the distance after movement is realized, at the moment, distance data between the outer surface of the test rod (411) and the inner wall of the valve rod groove after contact are transmitted to the computer control terminal, and the comparison operation between the distance data and the inner diameter data of the valve rod groove on the valve plate calculated by the test rod (411) and standard data in a database is realized through a data comparison module in the computer control terminal;

the calculation formula of the inner diameter of the valve rod groove on the valve plate for measurement 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 outer surface of the test rod (411) and the inner wall of the valve rod groove after being contacted in the measuring process of the positioning induction piece (48-1), R is the outer ring diameter distance of the test rod (411), and the distance unit in measuring and calculating is as follows: mm.

8. The butterfly valve plate quality testing apparatus 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 piece (48-1) in the running 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 sensing piece (48-1), performs 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 absolute value average value and a standard difference value of the difference value, correspondingly generates a curve average variable and a curve fluctuation variable, and sends the curve average variable and the curve fluctuation variable to the feedback integration unit;

the interference acquisition unit is used for acquiring the vibration frequency average value and the vibration amplitude average value at the positioning induction piece (48-1) and sending the vibration frequency average value and the vibration amplitude average 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, carrying out quantization averaging on the feedback interference factors with preset quantity to obtain feedback interference coefficients, comparing the feedback interference coefficients with 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 butterfly valve plate quality testing device according to claim 1, wherein the positioning pressing assembly (47) comprises a convex circular ring (47-1) and a rotating plate (47-2) fixedly installed on the surface of the transmission rotating shaft (413), the rotating shaft (47-3) is fixedly connected with the surface of the rotating plate (47-2), the rotating shaft (47-3) slides on the inner side of a circular arc groove of the convex circular ring (47-1) and enables the convex circular ring (47-1) to realize moving operation in the vertical direction through the connection limiting assembly (47-4), a pre-pressing rod (47-5) is fixedly connected to the bottom of the convex circular ring (47-1), the bottom end of the pre-pressing rod (47-5) penetrates through the bottom of the pre-pressing box (3) and is fixedly connected with a pre-pressing plate (47-6), and a positioning groove (47-7) is formed in the bottom of the pre-pressing plate (47-6).

10. The butterfly valve plate quality testing device according to claim 9, wherein the limiting assembly (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 position at the top of the convex ring (47-1), and the limiting rod (47-43) is connected with the supporting ring (47-42) in a penetrating and sliding mode.

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