CN113607356A - Valve body sealing performance detection system and detection method - Google Patents
Valve body sealing performance detection system and detection method Download PDFInfo
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- CN113607356A CN113607356A CN202110869897.1A CN202110869897A CN113607356A CN 113607356 A CN113607356 A CN 113607356A CN 202110869897 A CN202110869897 A CN 202110869897A CN 113607356 A CN113607356 A CN 113607356A
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- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/36—Investigating fluid-tightness of structures by using fluid or vacuum by detecting change in dimensions of the structure being tested
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Abstract
The invention relates to a valve body sealing performance detection system and a detection method, which comprise a base, a conveying unit and a detection unit, wherein the conveying unit is arranged on the upper surface of the base, the length direction of the base is the same as the conveying direction of the conveying unit, and the detection unit is arranged at one end of the conveying unit in the length direction. The invention can solve the problems existing at present: the existing detection equipment needs to independently turn over the position of each butterfly valve for the tightness detection of each butterfly valve, so that the aim of bidirectional tightness detection of the butterfly valves is fulfilled, and the detection equipment cannot realize continuous tightness detection operation on the butterfly valves in the same batch in a production line manner, so that the tightness detection efficiency of the butterfly valves is low; need artifical manual putting the calibration to the position of butterfly valve, and the skew appears easily in artifical manual butterfly valve position of putting the calibration for appear the clearance between check out test set and the butterfly valve, thereby influence the accuracy that the butterfly valve leakproofness detected.
Description
Technical Field
The invention relates to the field of valve body sealing detection, in particular to a valve body sealing detection system and a detection method.
Background
The tightness detection refers to detecting the tightness of a sample and whether a leakage problem exists, the application field is wide, the tightness detection of the valve body also belongs to one of the tightness detection methods, the tightness of the valve body is an important index for measuring the function and the quality of the valve body, and refers to the internal and external leakage conditions of the valve body under the rated test condition, if the leakage problem occurs in the valve body, the material loss and the environment pollution can be caused, accidents can be caused in serious cases, and the leakage is not allowed for inflammable, explosive, toxic or radioactive media, so that the valve body has reliable tightness.
The butterfly valve is a regulating valve with simple structure, can be used for controlling the opening and closing of low-pressure pipeline media, such as air, water, steam, various corrosive media, slurry, oil, liquid metal, radioactive media and the like, and mainly plays a role in cutting off and throttling on a pipeline, and the butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in the valve body, so that the opening and closing or regulating purpose is achieved.
When carrying out leakproofness to the butterfly valve that produces at present and detecting, have following problem: the existing detection equipment needs to independently turn over the positions of the butterfly valves for the tightness detection of each butterfly valve, so that the purpose of bidirectional tightness detection of the butterfly valves is achieved, and the detection equipment cannot realize continuous tightness detection operation on the butterfly valves in the same batch in a production line manner, so that the tightness detection efficiency of the butterfly valves is low, and the production efficiency of the butterfly valves is influenced.
When the existing detection equipment detects the sealing performance of the butterfly valve, the butterfly valve needs to be manually placed and calibrated, and the position of the butterfly valve which is manually placed and calibrated is easy to deviate, so that a gap is formed between the detection equipment and the butterfly valve, the accuracy of the detection of the sealing performance of the butterfly valve is affected, the waste in the production process of the butterfly valve is caused, and the problem of the butterfly valve in the use process is caused.
Disclosure of Invention
The invention aims to provide a valve body sealing performance detection system and a detection method, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a valve body sealing performance detection system comprises a base, a conveying unit and a detection unit, wherein the conveying unit is arranged on the upper surface of the base, and the detection unit is arranged at one end of the conveying unit in the length direction; wherein:
the conveying unit comprises conveying supports, conveying toothed rollers, conveying toothed belts, conveying motors and supporting assemblies, the conveying supports are symmetrically arranged on the upper surface of the base along two ends in the width direction of the base, a plurality of conveying toothed rollers are sequentially and rotatably arranged between the two conveying supports along the length direction of the conveying toothed rollers, all the conveying toothed rollers are connected through the conveying toothed belts, the conveying toothed rollers are connected with the conveying toothed belts in a meshed mode, the conveying motors are arranged on the conveying supports, one end of one conveying toothed roller is fixedly connected with the output end of each conveying motor, and the plurality of supporting assemblies are sequentially arranged on the conveying toothed belts along the length direction of the conveying toothed rollers;
the detection unit comprises a detection support, a detection slide rail, a detection slide plate, a detection pressure head, a detection push rod, a detection air pump, a detection balloon, a detection roller wheel, a detection motor and a detection rotating wheel, wherein two pairs of detection supports are symmetrically arranged at the outer sides of one end of each of the two conveying supports in the length direction, each pair of detection supports are sequentially arranged at the outer sides of the conveying supports, the detection support is in an L-shaped structure, the detection slide rail is arranged at one end, close to the conveying supports, of the horizontal part of the detection support, the detection slide plate is arranged in the detection slide rail in a sliding manner, a reset spring is connected between the detection support and the detection slide plate, the detection pressure head is fixedly arranged at the upper end of the detection slide plate, the detection push rod is arranged at one end, away from the conveying supports, the detection push rod is in sliding contact with the detection support, the detection air pump and the detection balloon are respectively arranged on the detection push rods at adjacent positions, and the detection roller wheel is arranged at one end of the detection push rod, the end of the horizontal part of the detection support, which is far away from the conveying support, is provided with a detection motor, the output end of the detection motor is provided with a detection rotating wheel, and the detection rotating wheel is in fit contact with the detection roller.
As a further scheme of the invention: the supporting component comprises a supporting seat, a supporting plate, a supporting rotating block, a supporting rod and an adjusting screw rod, wherein the supporting seat is sequentially arranged on the conveying toothed belt along the length direction of the conveying toothed belt, the conveying toothed belt is connected with the supporting seat through a bolt, the supporting plate is fixedly arranged on the supporting seat and is of an L-shaped structure, a plurality of supporting rotating blocks are sequentially arranged on the vertical portion of the supporting plate along the length direction of the vertical portion of the supporting toothed belt in a rotating mode, the supporting rod is arranged on the supporting rotating block in a sliding mode, the supporting rod is of a V-shaped structure and is connected with one end of the horizontal portion of the supporting rod through the adjusting screw rod, the supporting rotating block is connected with the adjusting screw rod in a rotating mode, the supporting rod is connected with the adjusting screw rod in a threaded fit mode, and a supporting spring is connected between one side face of the vertical portion of the supporting plate and one side face of the inclined portion of the supporting rod.
As a further scheme of the invention: the detection pressure head is close to the one end of transfer gantry and installs sealed the pad, sealed inside hollow structure that is of filling up.
As a further scheme of the invention: the detection pressure head and the detection push rod are of a hollow structure and are communicated with each other, the detection air pump is communicated with the inside of the detection push rod connected with the detection air pump, and the detection balloon is communicated with the inside of the detection push rod connected with the detection air pump.
As a further scheme of the invention: detect the pressure head and detect the fixed detection slide bar that is provided with of one end that the push rod is connected, detect the push rod inner wall and detect slide bar outer wall sliding connection, and be connected with reset spring between the inside one end of detection push rod and the one end that detects the slide bar, it is provided with detection branch to detect the inside longitudinal symmetry of pressure head, the one end that detects branch is rotated and is installed and detect the round bar, it detects the ejector pin to be provided with on the detection round bar, set up on the detection ejector pin and detect the slide, detect the round bar and detect slide sliding connection, it is provided with the detection connecting rod to detect the inside one end intermediate position of push rod is fixed, it is articulated between one end of detection ejector pin and the detection connecting rod, it has the detection ball to detect the ejector pin other end roll mounting.
As a further scheme of the invention: detect through detecting bolted connection between motor output and the detection runner, and detect the runner and be the eccentric wheel structure, detect and seted up a plurality of mounting hole along its direction of radius on the runner, detect the bolt and peg graft with the mounting hole cooperation.
As a further scheme of the invention: and the other side surface of the inclined part of the supporting rod is uniformly provided with supporting balls in a rolling manner.
In addition, the invention also provides a valve body sealing performance detection method, which comprises the following steps:
s1, preparation: debugging a valve body sealing detection system, and preparing a butterfly valve needing to be detected for sealing;
s2, detecting the sealing performance of the valve body: the butterfly valves prepared in the S1 are placed in the conveying unit one by one, then the conveying unit drives each butterfly valve to sequentially pass through the detection unit to perform tightness detection, and the butterfly valves with qualified tightness contact and the butterfly valves with unqualified tightness detection are collected separately, so that the butterfly valve tightness detection operation is completed.
Compared with the prior art, the invention has the following advantages: 1. the conveying unit can carry out transport one by one to the butterfly valve of same batch with the form of assembly line for each butterfly valve all can be orderly carries out the detection of leakproofness through the detecting element, and the detecting element need not overturn the position of butterfly valve in addition alright detect with the two-way leakproofness that realizes the butterfly valve, thereby effectively improve the leakproofness detection efficiency of butterfly valve.
2. The supporting component can carry out corresponding regulation according to the external dimension of butterfly valve for the supporting component can carry out the preliminary stable support of a self-adaptation to the butterfly valve of equidimension not, makes the butterfly valve can be carried detecting element department by smooth-going.
3. The detecting element is at the in-process that gradually contacts with the butterfly valve, and the detection connecting rod is through the promotion to detecting the ejector pin, and the cooperation detects the slide and detects the interact of round bar, can make the one end that detects the ejector pin and install the detection ball separately support the inner wall of butterfly valve from top to bottom gradually, and the butterfly valve center can be fine like this be calibrated to with detect the pressure head center and aim at to guarantee to detect the pressure head and can accurately align with the butterfly valve, make the leakproofness of butterfly valve detect can be more accurate.
4. Detect sealed the pad on the pressure head and can be close to by extrusion deformation when the butterfly valve with detecting the pressure head gradually, sealed pad alright with some and butterfly valve end face contact another part enter into the butterfly valve inside rather than the inner wall contact, the area of contact grow of sealed pad and butterfly valve for detect the connection leakproofness between pressure head and the butterfly valve and effectively improve, thereby guarantee the accuracy that the butterfly valve leakproofness detected.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic front sectional view of the present invention.
FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2 according to the present invention.
Fig. 4 is an enlarged schematic view of fig. 2B according to the present invention.
Fig. 5 is an enlarged view of the structure of fig. 3 according to the present invention.
Fig. 6 is a schematic perspective view of the supporting unit of the present invention.
Fig. 7 is a schematic perspective view of a butterfly valve.
In the figure: 1. a base; 2. a conveying unit; 20. a delivery stent; 21. a conveying toothed roller; 22. a conveying toothed belt; 23. a conveying motor; 24. a support assembly; 240. a supporting seat; 241. a support plate; 242. supporting the rotating block; 243. a support bar; 2430. supporting the balls; 244. adjusting the screw rod; 3. a detection unit; 30. detecting the bracket; 31. detecting a slide rail; 32. detecting the sliding plate; 33. detecting a pressure head; 330. a gasket; 34. detecting the push rod; 340. detecting a slide bar; 341. detecting the supporting rod; 342. detecting the round bar; 343. detecting a mandril; 344. detecting a slideway; 345. detecting a connecting rod; 346. detecting the rolling balls; 35. detecting the air pump; 36. detecting the balloon; 37. detecting a roller; 38. detecting a motor; 39. detecting a rotating wheel; 390. detecting the bolt; 391. mounting holes; D. butterfly valves.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
Referring to fig. 1, the valve body sealing performance detection system comprises a base 1, a conveying unit 2 and a detection unit 3, wherein the conveying unit 2 is arranged on the upper surface of the base 1, and the detection unit 3 is arranged at one end of the conveying unit 2 in the length direction; wherein:
referring to fig. 1 and 2, the conveying unit 2 includes conveying supports 20, conveying toothed rollers 21, conveying toothed belts 22, conveying motors 23 and supporting assemblies 24, the conveying supports 20 are symmetrically arranged on the upper surface of the base 1 along the two ends in the width direction, a plurality of conveying toothed rollers 21 are sequentially rotatably arranged between the two conveying supports 20 along the length direction of the two conveying supports, all the conveying toothed rollers 21 are connected through the conveying toothed belts 22, the conveying toothed rollers 21 are meshed with the conveying toothed belts 22, the conveying motors 23 are arranged on the conveying supports 20, one end of one conveying toothed roller 21 is fixedly connected with the output end of the conveying motor 23, and a plurality of supporting assemblies 24 are sequentially arranged on the conveying toothed belt 22 along the length direction of the conveying toothed belt;
referring to fig. 1, 2, 4 and 6, the supporting assembly 24 includes a supporting seat 240, a supporting plate 241, a supporting rotating block 242, a supporting rod 243 and an adjusting screw 244, wherein a plurality of pairs of supporting seats 240 are sequentially arranged on the conveying toothed belt 22 along the length direction thereof, the conveying toothed belt 22 is connected with the supporting seats 240 through bolts, the supporting seat 241 is fixedly arranged on the supporting seat 240, the supporting plate 241 is in an L-shaped structure, a plurality of supporting rotating blocks 242 are sequentially arranged on the vertical portion of the supporting plate 241 along the length direction thereof, the supporting rod 243 is slidably arranged on the supporting rotating block 242, the supporting rod 243 is in a V-shaped structure, the supporting rotating block 242 is connected with one end of the horizontal portion of the supporting rod 243 through the adjusting screw 244, the supporting rotating block 242 is rotatably connected with the adjusting screw 244, the supporting rod 243 is connected with the adjusting screw 244 through a thread fit, a supporting spring is connected between one side surface of the vertical portion of the supporting plate 241 and one side surface of the inclined portion of the supporting rod 243, and a supporting ball 2430 is uniformly rolled on the other side surface of the inclined portion of the supporting bar 243.
During the operation, firstly, the adjusting screw 244 is rotated according to the detected appearance size of the butterfly valve D, the horizontal part of the support rod 243 is controlled to slide on the support rotating block 242 through the matching action of the screw threads, thereby adjusting the distance between the inclined portion of the support rod 243 and the support plate 241 so that the support rod 243 at the opposite position of each pair of support seats 240 can be just adapted to the size of the butterfly valve D, and then after the butterfly valve D is placed on the support rod 243, since the weight of the butterfly valve D presses the support rod 243 downward, the support rotating block 242 can rotate on the support plate 241, and then, in cooperation with the elastic force of the support spring between the inclined portion of the support rod 243 and the support plate 241, even if the butterfly valve D has some irregular places in its appearance, the support rod 243 can still stably support the butterfly valve D, and then each butterfly valve D to be tested for sealability is placed on the support rod 243 by repeating the above process.
Secondly, the number of turns of the conveying motor 23 in each rotation is fixed, so that the conveying motor 23 drives the conveying toothed roller 21 to rotate, the distance of the conveying toothed belt 22 moving to the detection unit 3 in each rotation is the same, and the butterfly valve D placed on the support rod 243 can be accurately moved to the detection unit 3 to perform sealing detection operation in each rotation.
Referring to fig. 1 and 3, the detecting unit 3 includes a detecting support 30, a detecting slide rail 31, a detecting slide plate 32, a detecting pressure head 33, a detecting push rod 34, a detecting air pump 35, a detecting balloon 36, a detecting roller 37, a detecting motor 38 and a detecting wheel 39, two pairs of detecting supports 30 are symmetrically disposed at the outer side of one end of the two conveying supports 20 in the length direction, and each pair of detecting supports 30 are sequentially arranged at the outer side of the conveying support 20, the detecting support 30 is in an L-shaped structure, the detecting slide rail 31 is disposed at one end of the horizontal portion of the detecting support 30 close to the conveying support 20, the detecting slide plate 32 is slidably disposed in the detecting slide rail 31, a return spring is connected between the detecting support 30 and the detecting slide plate 32, the detecting pressure head 33 is fixedly mounted at the upper end of the detecting slide plate 32, the detecting push rod 34 is mounted at one end of the detecting pressure head 33 far from the conveying support 20, a sealing gasket 330 is mounted at one end of the detecting pressure head 33 close to the conveying support 20, the inside hollow structure that is of sealed pad 330 detects support 30 and detection push rod 34 sliding contact, installs respectively on the detection push rod 34 of adjacent position and detects air pump 35 and detection balloon 36, and detection gyro wheel 37 is installed to the one end that detects push rod 34, and the one end that detects support 30 horizontal part and keep away from transfer gantry 20 is installed and is detected motor 38, and detection runner 39 is installed to detection motor 38 output, detects runner 39 and detection gyro wheel 37 cooperation contact.
Referring to fig. 3, the detection pressure head 33 and the detection push rod 34 are both hollow structures and are communicated with each other, the detection air pump 35 is communicated with the inside of the detection push rod 34 connected with the detection air pump, and the detection balloon 36 is communicated with the inside of the detection push rod 34 connected with the detection air pump.
Referring to fig. 3, the output end of the detection motor 38 is connected with the detection rotating wheel 39 through a detection bolt 390, the detection rotating wheel 39 is an eccentric wheel structure, a plurality of mounting holes 391 are formed in the detection rotating wheel 39 along the radial direction of the detection rotating wheel, and the detection bolt 390 is inserted in the mounting holes 391 in a matching manner;
referring to fig. 3 and 5, a detection slide rod 340 is fixedly arranged at one end of the detection pressure head 33 connected with the detection push rod 34, the inner wall of the detection push rod 34 is slidably connected with the outer wall of the detection slide rod 340, a return spring is connected between one end of the detection push rod 34 and one end of the detection slide rod 340, detection support rods 341 are symmetrically arranged in the detection pressure head 33 from top to bottom, one end of each detection support rod 341 is rotatably installed with a detection round rod 342, a detection push rod 343 is arranged on each detection round rod 342, a detection slide 344 is arranged on each detection push rod 343, the detection round rod 342 is slidably connected with the detection slide 344, a detection connecting rod 345 is fixedly arranged at the middle position of one end of the detection push rod 34, one end of the detection push rod 343 is hinged with one end of the detection connecting rod 345, and a detection ball 346 is rotatably installed at the other end of the detection push rod 343.
During the specific operation, firstly, when the butterfly valve D is conveyed to a position between a pair of detection brackets 30 near the middle position by the conveying unit 2, the conveying unit 2 stops operating, the detection motor 38 on the pair of detection brackets 30 is started to operate, the detection motor 38 drives the detection rotating wheel 39 to rotate when operating, because the detection rotating wheel 39 is of an eccentric wheel structure, the detection rotating wheel 39 is in fit contact with the detection roller 37 during the rotation process, so that the detection rotating wheel 39 extrudes the detection roller 37, the detection push rod 34 slides towards the position of the butterfly valve D on the detection bracket 30 firstly, and in the process that the detection push rod 34 slides towards the position of the butterfly valve D, the detection slide rail 344 on the detection push rod 343 is pushed by the detection connecting rod 345 to slide relative to the detection round rod 342, because the detection round rod 342 is fixed, the end of the detection push rod 343, on which the detection ball 346 is mounted, gradually extends into the butterfly valve D, and the distance between the two detection round rods 342 located at the same position is greater than the distance between the two detection push rods 343 installed at one end of the detection connecting rod 345, so that the ends of the two detection push rods 343 installed with the detection balls 346 gradually move towards the inner wall of the butterfly valve D, until the detection balls 346 push against the inner wall of the butterfly valve D, the two detection push rods 343 located at the same position can not be continuously separated, so that the detection connecting rod 345 can not be continuously pushed by the detection push rod 34, and the distance between the detection push rod 34 and the detection pressure head 33 can not change, and then when the detection roller 37 is continuously pressed by the detection rotating wheel 39, the detection push rod 34 can push the detection pressure head 33 and the detection sliding plate 32 to move together along the track of the detection sliding rail 31 towards the position of the butterfly valve D, so that the sealing pad 330 on the detection pressure head 33 is contacted with the valve port end face of the butterfly valve D and is gradually pressed and attached, the sealing gasket 330 is deformed by extrusion, so that one part of the sealing gasket 330 can be in contact with the end face of the butterfly valve D, and the other part of the sealing gasket 330 can enter the interior of the butterfly valve D to be in contact with the inner wall of the butterfly valve D, and the contact area between the sealing gasket 330 and the butterfly valve D is increased, so that the connection sealing performance between the detection pressure head 33 and the butterfly valve D is effectively improved.
And secondly, after the two valve ports of the butterfly valve D are completely sealed by the sealing gasket 330, stopping the work of the detection motor 38, closing the butterfly valve D, starting the detection air pump 35 on the pair of detection supports 30 to blow air to the butterfly valve D, and observing the volume change of the detection balloon 36 on the other side at the same time, wherein if the volume of the detection balloon 36 does not change, the butterfly valve D is better in sealing performance in the direction and qualified in quality, and if the volume of the detection balloon 36 is increased, the butterfly valve D is poorer in sealing performance and unqualified in quality.
After the butterfly valve D is subjected to the first tightness detection, tightness detection in the opposite direction is needed, the process is repeated, the second tightness detection can be performed on the butterfly valve D, and then the tightness of the butterfly valve D can be judged according to the detection result, so that the tightness detection operation of the butterfly valve D is completed.
In addition, the invention also provides a valve body sealing performance detection method, which comprises the following steps:
s1, preparation: debugging a valve body sealing detection system, and preparing a butterfly valve D needing to be detected for sealing;
s2, detecting the sealing performance of the valve body: firstly, the conveying motor 23 is started to work, the conveying motor 23 intermittently drives the conveying toothed roller 21 to rotate, so that the moving distance of the conveying toothed belt 22 is the same every time, then the butterfly valve D to be detected is placed on the support rod 243 on each pair of support seats 240 when the conveying motor 23 intermittently stops working every time, the support rod 243 is pressed downwards due to the gravity of the butterfly valve D, the support rotating block 242 can rotate on the support plate 241, and the support rotating block is matched with the elastic force action of the support spring between the inclined part of the support rod 243 and the support plate 241, so that the support rod 243 can still stably support the butterfly valve D.
Secondly, each butterfly valve D to be detected is sequentially conveyed to the position between each pair of detection brackets 30 by the intermittent movement of the conveying toothed belt 22, then the detection motor 38 on the pair of detection brackets 30 is started to work, the detection motor 38 drives the detection rotating wheel 39 to rotate when working, the detection rotating wheel 39 is in an eccentric wheel structure, and the detection rotating wheel 39 is in fit contact with the detection roller 37 in the rotating process, so that the detection rotating wheel 39 extrudes the detection roller 37, the detection push rod 34 firstly slides towards the position of the butterfly valve D on the detection brackets 30, the detection slide rail 344 on the detection push rod 343 is pushed by the detection connecting rod 345 to slide relative to the detection round rod 342 in the process that the detection push rod 34 slides towards the position of the butterfly valve D, and the position of the detection round rod 342 is fixed, so that one end of the detection push rod 343, which is provided with the detection ball 346, gradually extends towards the interior of the butterfly valve D, and the distance between the two detection round rods 342 located at the same position is greater than the distance between the two detection push rods 343 installed at one end of the detection connecting rod 345, so that the ends of the two detection push rods 343 installed with the detection balls 346 gradually move towards the inner wall of the butterfly valve D, until the detection balls 346 push against the inner wall of the butterfly valve D, the two detection push rods 343 located at the same position can not be continuously separated, so that the detection connecting rod 345 can not be continuously pushed by the detection push rod 34, and the distance between the detection push rod 34 and the detection pressure head 33 can not change, and then when the detection roller 37 is continuously pressed by the detection rotating wheel 39, the detection push rod 34 can push the detection pressure head 33 and the detection sliding plate 32 to move together along the track of the detection sliding rail 31 towards the position of the butterfly valve D, so that the sealing pad 330 on the detection pressure head 33 is contacted with the valve port end face of the butterfly valve D and is gradually pressed and attached, the sealing pad 330 is deformed by being pressed, so that a part of the sealing pad 330 can contact with the end face of the butterfly valve D and another part can enter the butterfly valve D to contact with the inner wall of the butterfly valve D, the contact area between the sealing pad 330 and the butterfly valve D is increased, and then two valve ports of the butterfly valve D are completely sealed by the sealing pad 330.
And thirdly, stopping the operation of the detection motor 38, closing the butterfly valve D, starting the detection air pump 35 on the pair of detection supports 30 to blow air to the butterfly valve D, observing the volume change of the detection balloon 36 on the other side, if the volume of the detection balloon 36 does not change, indicating that the tightness of the butterfly valve D in the direction is good, the quality is qualified, and if the volume of the detection balloon 36 is increased, indicating that the tightness of the butterfly valve D is poor and the quality is unqualified.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (8)
1. The utility model provides a valve body leakproofness detecting system, includes base (1), conveying unit (2) and detecting element (3), its characterized in that: the upper surface of the base (1) is provided with a conveying unit (2), and one end of the conveying unit (2) in the length direction is provided with a detection unit (3); wherein:
the conveying unit (2) comprises conveying supports (20), conveying toothed rollers (21), conveying toothed belts (22), conveying motors (23) and supporting assemblies (24), the conveying supports (20) are symmetrically arranged on the upper surface of the base (1) along the two ends in the width direction of the base, the conveying toothed rollers (21) are sequentially arranged between the two conveying supports (20) in a rotating mode along the length direction of the base, all the conveying toothed rollers (21) are connected through the conveying toothed belts (22), the conveying toothed rollers (21) are connected with the conveying toothed belts (22) in a meshing mode, the conveying motors (23) are arranged on the conveying supports (20), one end of one conveying toothed roller (21) is fixedly connected with the output end of each conveying motor (23), and the conveying toothed belts (22) are sequentially provided with the supporting assemblies (24) along the length direction of the conveying toothed rollers;
the detection unit (3) comprises detection supports (30), detection slide rails (31), detection slide plates (32), detection pressure heads (33), detection push rods (34), detection air pumps (35), detection balloons (36), detection rollers (37), detection motors (38) and detection rotating wheels (39), wherein two pairs of detection supports (30) are symmetrically arranged at the outer sides of one ends of the two conveying supports (20) in the length direction, each pair of detection supports (30) are sequentially arranged at the outer sides of the conveying supports (20), the detection supports (30) are of an L-shaped structure, the detection slide rails (31) are arranged at one ends, close to the conveying supports (20), of the horizontal parts of the detection supports (30), the detection slide plates (32) are arranged in the detection slide rails (31) in a sliding mode, return springs are connected between the detection supports (30) and the detection slide plates (32), and the detection pressure heads (33) are fixedly installed at the upper ends of the detection slide plates (32), detect pressure head (33) and keep away from the one end of transfer gantry (20) and install and detect push rod (34), detect support (30) and detect push rod (34) sliding contact, install respectively on the detection push rod (34) of adjacent position and detect air pump (35) and detect balloon (36), detect the one end of push rod (34) and install and detect gyro wheel (37), detect the one end that support (30) horizontal segment kept away from transfer gantry (20) and install and detect motor (38), detect motor (38) output and install and detect runner (39), detect runner (39) and detect gyro wheel (37) cooperation contact.
2. The valve body tightness detection system according to claim 1, wherein: the supporting component (24) comprises a supporting seat (240), a supporting plate (241), a supporting rotating block (242), a supporting rod (243) and an adjusting screw rod (244), a plurality of pairs of supporting seats (240) are sequentially arranged on the conveying toothed belt (22) along the length direction of the conveying toothed belt, the conveying toothed belt (22) is connected with the supporting seat (240) through bolts, the supporting plate (241) is fixedly arranged on the supporting seat (240), the supporting plate (241) is of an L-shaped structure, a plurality of supporting rotating blocks (242) are sequentially and rotatably arranged on the vertical part of the supporting plate (241) along the length direction of the vertical part of the supporting plate, the supporting rotating block (242) is slidably arranged on the supporting rotating block (242), the supporting rod (243) is of a V-shaped structure, the supporting rotating blocks (242) are connected with one end of the horizontal part of the supporting rod (243) through the adjusting screw rod (244), and the supporting rotating blocks (242) are rotatably connected with the adjusting screw rod (244), the support rod (243) is connected with the adjusting screw rod (244) in a thread matching mode, and a support spring is connected between one side surface of the vertical part of the support plate (241) and one side surface of the inclined part of the support rod (243).
3. The valve body tightness detection system according to claim 1, wherein: detect pressure head (33) and be close to the one end of transfer gantry (20) and install sealed pad (330), sealed pad (330) inside is hollow structure.
4. The valve body tightness detection system according to claim 1, wherein: detect pressure head (33) and detect push rod (34) and be hollow structure and communicate each other, detect air pump (35) and the inside intercommunication of the detection push rod (34) that is connected, detect balloon (36) and the inside intercommunication of the detection push rod (34) that is connected.
5. The valve body tightness detection system according to claim 1, wherein: one end of the detection pressure head (33) connected with the detection push rod (34) is fixedly provided with a detection slide rod (340), the inner wall of the detection push rod (34) is connected with the outer wall of the detection slide rod (340) in a sliding way, and be connected with reset spring between the inside one end of detection push rod (34) and the one end that detects slide bar (340), it is provided with detection branch (341) to detect pressure head (33) inside longitudinal symmetry, the one end of detecting branch (341) is rotated and is installed and is detected round bar (342), be provided with on the detection round bar (342) and detect ejector pin (343), set up on the detection ejector pin (343) and detect slide (344), detect round bar (342) and detect slide (344) sliding connection, it is provided with detection connecting rod (345) to detect the inside one end intermediate position of push rod (34) is fixed, it is articulated between detection ejector pin (343) one end and detection connecting rod (345) one end, it has detection ball (346) to detect the rolling of ejector pin (343) other end installation.
6. The valve body tightness detection system according to claim 1, wherein: detect between motor (38) output and the detection runner (39) and be connected through detecting bolt (390), and detect runner (39) and be the eccentric structure, detect runner (39) and go up along its radial direction and seted up a plurality of mounting hole (391), detect bolt (390) and mounting hole (391) cooperation grafting.
7. The valve body tightness detection system according to claim 2, wherein: and a supporting ball (2430) is uniformly arranged on the other side surface of the inclined part of the supporting rod (243) in a rolling way.
8. The valve body tightness detection system according to claim 1, wherein: the method for detecting the sealing performance of the valve body by using the valve body sealing performance detection system comprises the following steps:
s1, preparation: debugging a valve body sealing detection system and preparing a butterfly valve (D) needing to be detected for sealing;
s2, detecting the sealing performance of the valve body: the butterfly valves (D) prepared in the S1 are placed in the conveying unit (2) one by one, then the conveying unit (2) carries each butterfly valve (D) to sequentially pass through the detection unit (3) for tightness detection, and the butterfly valves (D) with qualified tightness contact and the butterfly valves (D) with unqualified tightness detection are collected separately, so that the tightness detection operation of the butterfly valves (D) is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110869897.1A CN113607356A (en) | 2021-07-30 | 2021-07-30 | Valve body sealing performance detection system and detection method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110869897.1A CN113607356A (en) | 2021-07-30 | 2021-07-30 | Valve body sealing performance detection system and detection method |
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| CN113607356A true CN113607356A (en) | 2021-11-05 |
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| CN202110869897.1A Withdrawn CN113607356A (en) | 2021-07-30 | 2021-07-30 | Valve body sealing performance detection system and detection method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114166435A (en) * | 2021-11-19 | 2022-03-11 | 淄博市特种设备检验研究院 | Special robot for detecting valve tightness of pressure container |
| CN116626165A (en) * | 2023-07-21 | 2023-08-22 | 淄博市特种设备检验研究院 | Pressure vessel flaw detection device |
| CN116698298A (en) * | 2023-08-08 | 2023-09-05 | 江苏润仪仪表有限公司 | Flowmeter casing tightness test device |
| CN118392890A (en) * | 2024-04-25 | 2024-07-26 | 湖北泰和石化设备有限公司 | In-situ measurement method for sealing surface of three-eccentric butterfly valve |
-
2021
- 2021-07-30 CN CN202110869897.1A patent/CN113607356A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114166435A (en) * | 2021-11-19 | 2022-03-11 | 淄博市特种设备检验研究院 | Special robot for detecting valve tightness of pressure container |
| CN114166435B (en) * | 2021-11-19 | 2023-12-22 | 浙江达鼎智能科技有限公司 | Special robot for detecting tightness of pressure container valve |
| CN116626165A (en) * | 2023-07-21 | 2023-08-22 | 淄博市特种设备检验研究院 | Pressure vessel flaw detection device |
| CN116626165B (en) * | 2023-07-21 | 2023-09-26 | 淄博市特种设备检验研究院 | Pressure vessel flaw detection device |
| CN116698298A (en) * | 2023-08-08 | 2023-09-05 | 江苏润仪仪表有限公司 | Flowmeter casing tightness test device |
| CN116698298B (en) * | 2023-08-08 | 2023-10-20 | 江苏润仪仪表有限公司 | Flowmeter casing tightness test device |
| CN118392890A (en) * | 2024-04-25 | 2024-07-26 | 湖北泰和石化设备有限公司 | In-situ measurement method for sealing surface of three-eccentric butterfly valve |
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Application publication date: 20211105 |