CN113700630A - Nondestructive testing tool for pressure container - Google Patents
Nondestructive testing tool for pressure container Download PDFInfo
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- CN113700630A CN113700630A CN202110882702.7A CN202110882702A CN113700630A CN 113700630 A CN113700630 A CN 113700630A CN 202110882702 A CN202110882702 A CN 202110882702A CN 113700630 A CN113700630 A CN 113700630A
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- China
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- fixedly connected
- pressure container
- bag
- plate
- detection bag
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- G—PHYSICS
- 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
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a pressure container nondestructive testing tool in the technical field of pressure container testing, which comprises a bottom plate, wherein the top of the bottom plate is fixedly connected with a mounting seat, the top of the mounting seat is connected with a first slide bar in a sliding manner in the vertical direction, the top of the first slide bar is fixedly connected with an arc-shaped supporting plate, the bottom of the first slide bar is fixedly connected with a first air cylinder, the bottom end of the first air cylinder is fixedly connected to the top of the bottom plate, the top of the arc-shaped supporting plate is provided with a testing bag, the testing bag is internally provided with a pressure container, the outer side of a left opening of the testing bag is fixedly connected with six sealing blocks, the left side of the testing bag is provided with a first clamping mechanism, and the first clamping mechanism is used for clamping the left side of the pressure container and enabling the six sealing blocks to move to seal the left opening of the testing bag; the invention can judge whether the pressure container is qualified or not by detecting whether the bag is bulged or not, so that the detection result is more accurate.
Description
Technical Field
The invention relates to the technical field of pressure container detection, in particular to a nondestructive detection tool for a pressure container.
Background
Background information pressure vessels refer to closed equipment which contains gas or liquid and bears certain pressure, the pressure vessels have wide application, have important status and function in many departments such as industry, civil use, military industry and the like and many fields of scientific research, and the pressure vessels are mainly used for heat transfer, mass transfer, reaction and other processes, and storing and transporting gas or liquefied gas with pressure in the fields of chemical industry and petrochemical industry; it is also widely used in other industrial and domestic applications, such as air compressors. Auxiliary machines (such as a cooler, a buffer, an oil-water separator, an air storage tank, an evaporator, a liquid coolant storage tank and the like) of various special compressors and refrigeration compressors belong to pressure containers, and the detection of the pressure containers after production is particularly important, otherwise, the leakage of internal solution is easily caused in the use process.
In the prior art, a detector is usually adopted to scan to detect when a pressure container is detected, and the detector is troublesome to scan all the positions of the outer surface of the pressure container, so that operation negligence of workers is easily caused, and the surface of the pressure container is provided with undetected places, so that the detection result is easily incorrect.
Based on the technical scheme, the invention designs the nondestructive testing tool for the pressure container to solve the problems.
Disclosure of Invention
The invention aims to provide a nondestructive testing tool for a pressure container, which aims to solve the problems that in the prior art, a detector is usually adopted to scan to detect the pressure container when the pressure container is detected, and the detector is troublesome to scan all positions on the outer surface of the pressure container, so that the operation negligence of workers is easily caused, and the surface of the pressure container has undetected places, so that the detection result is easily incorrect.
In order to achieve the purpose, the invention provides the following technical scheme: a nondestructive testing tool for a pressure container comprises a bottom plate, wherein a mounting seat is fixedly connected to the top of the bottom plate, a first slide rod is connected to the top of the mounting seat in a sliding manner in the vertical direction, an arc-shaped supporting plate is fixedly connected to the top of the first slide rod, a first air cylinder is fixedly connected to the bottom of the first slide rod, a testing bag is fixedly connected to the top of the bottom plate, the pressure container is loaded in the testing bag, six sealing blocks are fixedly connected to the outer side of a left opening of the testing bag, a first clamping mechanism is arranged on the left side of the testing bag and used for clamping the left side of the pressure container and enabling the six sealing blocks to move to seal the left opening of the testing bag, a second clamping mechanism is arranged on the right side of the testing bag and used for clamping the right side of the testing bag, the top of the mounting seat is provided with an air exhaust mechanism and a linkage mechanism, and the air exhaust mechanism is driven by the second clamping mechanism through the linkage mechanism to perform air exhaust treatment on the sealed detection bag;
the first clamping mechanism comprises a hexagonal slide seat, the hexagonal slide seat is fixedly connected to the top of the mounting seat through a mounting column, the hexagonal slide seat is in sliding connection with the sealing block, the inner wall of the hexagonal slide seat is in sliding connection with a hexagonal slide plate in the left-right direction, a first mounting groove is formed in the center position of the hexagonal slide plate, a detachable first clamping plate is fixedly connected in the first mounting groove, the center position of the first clamping plate is fixedly connected with an air inlet pipe capable of being spliced with an opening in the left side of the pressure container, a second air cylinder is fixedly connected to the left side wall of the hexagonal slide plate, the second air cylinder is fixedly connected to the left side wall of the mounting seat through the mounting column, six sliding blocks which are in sliding connection with the inner wall of the hexagonal slide seat are arranged on the right side of the hexagonal slide plate, and first connecting rods are rotatably connected to the six sliding blocks, the other ends of the six first connecting rods are respectively and rotatably connected to the outer walls of the sealing blocks closest to the first connecting rods;
the second clamping mechanism comprises a second clamping plate, the first clamping plate is connected to the top of the mounting seat in a sliding mode in the left-right direction, a third air cylinder is fixedly connected to the right side wall of the second clamping plate, and the third air cylinder is fixedly connected to the right side of the top of the mounting seat;
the air extracting mechanism comprises an air extracting cylinder, the air extracting cylinder is fixedly connected to the top of the mounting seat, an air extracting hose communicated with the inside of the air extracting cylinder is fixedly connected to the left side wall of the air extracting cylinder, one end, far away from the air extracting cylinder, of the air extracting hose extends into the left side of the detection bag and is fixedly connected with the left side inner wall of the detection bag, a first elastic sealing sheet used for shielding the air extracting hose is fixedly connected to the left side inner wall of the air extracting cylinder, an air outlet is formed in the front wall of the air extracting cylinder, a second elastic sealing sheet fixedly connected to the front wall of the air extracting cylinder is arranged on the outer side of the air outlet, and a pulling plate is connected to the inner wall of the air extracting cylinder in a left-right sliding mode;
the linkage mechanism comprises a cylindrical cam, the left end and the right end of the cylindrical cam are respectively and rotatably connected with first mounting plates, the two first mounting plates are respectively and fixedly connected with the tops of a mounting seat and an air pump cylinder, a cam groove is formed in the cylindrical cam, a convex block is slidably connected in the cam groove and fixedly connected with the top of a pull plate, a first bevel gear is fixedly connected to a rotating shaft of the cylindrical cam, a second bevel gear meshed with the first bevel gear is arranged on the rear side of the first bevel gear, a first gear is fixedly connected to a rotating shaft of the second bevel gear, a second mounting plate is rotatably connected to a rotating shaft of the first gear, a rack rod is meshed below the first gear and fixedly connected to the front wall of a second clamping plate, and a rectangular sliding seat fixedly connected to the top of the first mounting plate is slidably connected to the bottom of the rack rod, the second mounting plate is fixedly connected to the side wall of the rectangular sliding seat;
when the pressure container detection device works, the detector is usually adopted to scan to detect when the pressure container is detected in the prior art, and the detector is troublesome to scan all the positions of the outer surface of the pressure container, so that the operation negligence of workers is easily caused, and undetected places exist on the surface of the pressure container, so that the detection result is easily incorrect. The hexagonal sliding plate can push the six sliding blocks to move rightwards together, the six sliding blocks can respectively drive the first connecting rod to move rightwards together, the other end of the first connecting rod of the connecting rod can respectively drive the sealing block connected with the connecting rod to move towards the pressure container, the six sealing blocks can drive the bag body at the opening at the left side of the detection bag to move towards the pressure container together until the sealing block drives the bag body to be attached to the outer wall at the left side of the pressure container together, the six sealing blocks can enable the opening at the left side of the detection bag to be completely attached to the surface of the pressure container, at the moment, the first clamping plate just moves to the position attached to the left side wall of the pressure container, the air inlet pipe is inserted into the pressure container, then the third air cylinder is started to move leftwards, when the third air cylinder moves rightwards, the second clamping plate and the rack rod move rightwards together, and the rack rod can drive the first gear meshed with the rack rod to rotate through the teeth, the first gear rotates to drive the second bevel gear to rotate, the second bevel gear drives the first bevel gear to rotate, and the first bevel gear drives the cylindrical cam to rotate together. The cylindrical cam can drive the convex block to move back and forth in the left-right direction through the cam groove, the convex block can drive the drawing plate to draw back and forth in the air extracting cylinder, the second elastic sealing sheet closes the air outlet and opens the first elastic sealing sheet when the drawing plate moves rightwards, the drawing plate pumps air in the detection bag with a sealed opening into the air extracting cylinder through the air pumping hose, the first elastic sealing sheet closes the air pumping hose and opens the air outlet when the drawing plate moves leftwards, the drawing plate pushes the air in the air extracting cylinder out into the air, the drawing plate pumps the air in the detection bag out and exhausts the air again when moving rightwards, the second clamping plate clamps the right side wall of the pressure container until the air in the detection bag is completely pumped out, then the first air cylinder can be started to shrink downwards, the first air cylinder drives the first sliding rod and the arc-shaped supporting plate to move downwards, and the arc-shaped supporting plate can not support the detection bag and the pressure container any more, then, gas can be continuously introduced into the pressure container through the gas inlet pipe, the gas introduction can be stopped after the gas reaches a certain amount, then a worker only needs to observe the periphery of the detection bag, if the gas in the pressure container leaks into the detection bag from cracks, the local part of the detection bag can generate a swelling phenomenon, the situation indicates that the cracks on the surface of the pressure container are unqualified, the worker can judge the position of the cracks on the pressure container through the swelling position, if the swelling phenomenon does not exist in the detection bag, the pressure container is qualified, through the arrangement of the detection bag and the sealing block, the first clamping mechanism can clamp the left side wall of the pressure container after the pressure container is loaded into the detection bag, and simultaneously the first clamping mechanism can drive the detection bag to move to clamp the opening of the pressure container, so that the detection bag is in a sealing state, then the second clamping mechanism moves to clamp the right side wall of the pressure container, the second clamping mechanism drives the air pumping mechanism to move through the linkage mechanism while moving so as to completely pump out air in the sealed detection bag, the detection bag is in a vacuum state, then the detection bag and the pressure container are suspended, the surface of the pressure container can be conveniently observed, then gas is introduced into the pressure container, whether the pressure container cracks or not can be judged through whether the gas leaks into the detection bag, if the pressure container cracks, the gas in the pressure container can leak into the detection bag from the cracks, at the moment, the local part of the detection bag can bulge, the situation that the surface of the pressure container has the cracks is unqualified is explained, if the detection bag does not bulge, the pressure container is qualified, and a worker can judge the position of the cracks on the pressure container through the bulge position, the pressure vessel can be repaired conveniently, the detection accuracy of the pressure vessel can be ensured, and the condition that the pressure vessel is detected incorrectly due to the careless operation of workers can be avoided.
As a further scheme of the invention, the front side wall and the rear side wall of each of the six sealing blocks are provided with a second mounting groove, and a telescopic baffle plate capable of being accommodated in the second mounting groove is fixedly connected in the adjacent second mounting grooves of the two adjacent sealing blocks; when the detection device works, the sealing blocks drive the detection bag to move to seal the opening of the detection bag, the telescopic baffle plate can block the bag body of the detection bag between every two sealing blocks at the inner side of the telescopic baffle plate, the detection bag between the sealing blocks can be prevented from being bulged in the moving process of the sealing blocks, when the sealing block drives the detection bag to be attached to the surface of the pressure container, the opening of the detection bag can be completely attached to the pressure container, meanwhile, the telescopic baffle can be retracted into the sealing block, the detection bag between the sealing blocks can be shielded inside when the sealing blocks drive the detection bag to move through the arrangement of the telescopic baffle, so that the detection bag cannot bulge, can make the opening part bag physical stamina that detects the bag drive by sealed piece and laminate with pressure vessel completely, can guarantee to detect the leakproofness in the bag, can make that the detection bag is better detect pressure vessel.
As a further scheme of the invention, the left side walls of the six sliding blocks are fixedly connected with pressure springs, and the left ends of the pressure springs are fixedly connected to the right side wall of the hexagonal sliding plate; during operation, the sealing block can be better in sealing performance of the detection bag through the arrangement of the pressure spring.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention can enable the first clamping mechanism to clamp the left side wall of the pressure container after the pressure container is loaded into the detection bag through the arrangement of the detection bag and the sealing block, simultaneously, the first clamping mechanism can also enable the sealing block to drive the detection bag to move to clamp the opening of the pressure container, so that the detection bag is in a sealing state, then the second clamping mechanism can move to clamp the right side wall of the pressure container, the second clamping mechanism can drive the air pumping mechanism to move through the linkage mechanism while moving to completely pump out air in the sealed detection bag, so that the detection bag is in a vacuum state, then the detection bag and the pressure container are suspended in the air, the surface of the pressure container can be conveniently observed, then gas is introduced into the pressure container, whether the pressure container cracks or not can be judged through whether the gas leaks into the detection bag, if the gas in the pressure container cracks, the gas in the pressure container can leak into the detection bag from the cracks, the local bulging phenomenon of the detection bag can be generated, the fact that the surface of the pressure container is provided with a crack is unqualified under the condition is indicated, if the detection bag does not have the bulging phenomenon, the pressure container is qualified, and a worker can judge the position of the crack on the pressure container through the bulging position, so that the follow-up repair of the pressure container can be facilitated, the detection accuracy of the pressure container can be ensured, and the condition that the detection of the pressure container is incorrect due to the fact that the worker operates carelessly can be avoided.
2. According to the invention, through the arrangement of the telescopic baffle, the detection bag between the sealing blocks can be shielded inside when the sealing blocks drive the detection bag to move, so that the detection bag cannot bulge, the bag body at the opening of the detection bag can be driven by the sealing blocks to be completely attached to the pressure container, the sealing property in the detection bag can be ensured, and the detection bag can better detect the pressure container.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a cross-sectional view of the internal structure of the hexagonal slide and the connection structure with the pressure vessel and the detection bag according to the present invention;
FIG. 4 is an enlarged view of a portion B of FIG. 3;
FIG. 5 is a sectional view of the connection structure of the detection bag, the pressure vessel, the sealing block, and the retractable baffle according to the present invention;
FIG. 6 is a sectional view of the structure of the air pump of the present invention and the upper portion thereof.
In the drawings, the components represented by the respective reference numerals are listed below:
the detection device comprises a bottom plate 1, a mounting seat 2, a first sliding rod 3, an arc-shaped supporting plate 4, a first air cylinder 5, a detection bag 6, a pressure container 7, a sealing block 8, a hexagonal sliding seat 9, a hexagonal sliding plate 10, a first mounting groove 11, a first clamping plate 12, an air inlet pipe 13, a second air cylinder 14, a sliding block 15, a first connecting rod 16, a second clamping plate 17, a third air cylinder 18, an air pumping cylinder 19, an air pumping hose 20, a first elastic sealing sheet 21, an air outlet 22, a second elastic sealing sheet 23, a pulling plate 24, a cylindrical cam 25, a first mounting plate 26, a cam groove 27, a convex block 28, a first bevel gear 29, a second bevel gear 30, a first gear 31, a second mounting plate 32, a rack bar 33, a rectangular sliding seat 34, a second mounting groove 35, a telescopic baffle 36 and a pressure spring 37.
Detailed Description
Referring to fig. 1-6, the present invention provides a technical solution: a nondestructive testing tool for a pressure container comprises a bottom plate 1, wherein the top of the bottom plate 1 is fixedly connected with a mounting seat 2, the top of the mounting seat 2 is connected with a first slide bar 3 in a sliding manner in the vertical direction, the top of the first slide bar 3 is fixedly connected with an arc-shaped supporting plate 4, the bottom of the first slide bar 3 is fixedly connected with a first air cylinder 5, the bottom end of the first air cylinder 5 is fixedly connected with the top of the bottom plate 1, the top of the arc-shaped supporting plate 4 is provided with a testing bag 6, the testing bag 6 is internally loaded with a pressure container 7, the outer side of a left opening of the testing bag 6 is fixedly connected with six sealing blocks 8, the left side of the testing bag 6 is provided with a first clamping mechanism, the first clamping mechanism is used for clamping the left side of the pressure container 7 and enabling the six sealing blocks 8 to move to seal the left opening of the testing bag 6, the right side of the testing bag 6 is provided with a second clamping mechanism, the second clamping mechanism is used for clamping the right side of the testing bag 6, the top of the mounting seat 2 is provided with an air exhaust mechanism and a linkage mechanism, and the air exhaust mechanism is driven by the second clamping mechanism through the linkage mechanism to perform air exhaust treatment on the sealed detection bag 6;
the first clamping mechanism comprises a hexagonal slide seat 9, the hexagonal slide seat 9 is fixedly connected to the top of the mounting seat 2 through a mounting column, the hexagonal slide seat 9 and a sealing block 8 are in sliding connection, the inner wall of the hexagonal slide seat 9 is in sliding connection with a hexagonal slide plate 10 in the left-right direction, a first mounting groove 11 is formed in the center position of the hexagonal slide plate 10, a detachable first clamping plate 12 is fixedly connected in the first mounting groove 11, an air inlet pipe 13 capable of being inserted into a left opening of the pressure container 7 is fixedly connected to the center position of the first clamping plate 12, a second air cylinder 14 is fixedly connected to the left side wall of the hexagonal slide plate 10, the second air cylinder 14 is fixedly connected to the left side wall of the mounting seat 2 through the mounting column, six sliding blocks 15 which are in sliding connection with the inner wall of the hexagonal slide seat 9 are arranged on the right side of the hexagonal slide plate 10, and first connecting rods 16 are rotatably connected to the six sliding blocks 15, the other ends of the six first connecting rods 16 are respectively and rotatably connected to the outer walls of the sealing blocks 8 which are closest to the six first connecting rods;
the second clamping mechanism comprises a second clamping plate 17, the first clamping plate 12 is connected to the left and right directions of the top of the mounting base 2 in a sliding mode, a third air cylinder 18 is fixedly connected to the right side wall of the second clamping plate 17, and the third air cylinder 18 is fixedly connected to the right side of the top of the mounting base 2;
the air extracting mechanism comprises an air extracting cylinder 19, the air extracting cylinder 19 is fixedly connected to the top of the mounting seat 2, an air extracting hose 20 communicated with the inside of the air extracting cylinder 19 is fixedly connected to the left side wall of the air extracting cylinder 19, one end, far away from the air extracting cylinder 19, of the air extracting hose 20 extends to the inside of the left side of the detection bag 6 and is fixedly connected with the inner wall of the left side of the detection bag 6, a first elastic sealing sheet 21 used for shielding the air extracting hose 20 is fixedly connected to the inner wall of the left side of the air extracting cylinder 19, an air outlet 22 is formed in the front wall of the air extracting cylinder 19, a second elastic sealing sheet 23 fixedly connected to the front wall of the air extracting cylinder 19 is arranged on the outer side of the air outlet 22, and a drawing plate 24 is slidably connected to the inner wall of the air extracting cylinder 19 in the left-right direction;
the linkage mechanism comprises a cylindrical cam 25, the left end and the right end of the cylindrical cam 25 are respectively and rotatably connected with a first mounting plate 26, the two first mounting plates 26 are respectively and fixedly connected with the tops of the mounting base 2 and the air extracting cylinder 19, a cam groove 27 is formed in the cylindrical cam 25, a convex block 28 is slidably connected in the cam groove 27, the convex block 28 is fixedly connected with the top of the pulling plate 24, a first bevel gear 29 is fixedly connected on the rotating shaft of the cylindrical cam 25, a second bevel gear 30 meshed with the first bevel gear 29 is arranged on the rear side of the first bevel gear 29, a first gear 31 is fixedly connected on the rotating shaft of the second bevel gear 30, a second mounting plate 32 is rotatably connected on the rotating shaft of the first gear 31, a rack bar 33 is meshed below the first gear 31, the rack bar 33 is fixedly connected on the front wall of the second clamping plate 17, and a rectangular sliding seat 34 fixedly connected on the top of the first mounting plate 26 is slidably connected at the bottom of the rack bar 33, the second mounting plate 32 is fixedly connected to the side wall of the rectangular sliding seat 34;
when the pressure container 7 is needed to be detected, a worker firstly takes the first clamping plate 12 off from the first mounting groove 11, then loads the pressure container 7 into the detection bag 6 through the first mounting groove 11, the detection bag 6 loaded with the pressure container 7 stays on the arc-shaped supporting plate 4, then fixes the first clamping plate 12 into the first mounting groove 11 again, then starts the second cylinder 14 to extend rightwards, and the second cylinder 14 drives the hexagonal sliding plate 10 and the first clamping plate 12 to move rightwards together, after the hexagonal sliding plate 10 moves rightwards to be in contact with the six sliding blocks 15, the hexagonal sliding plate 10 can push the six sliding blocks 15 to move rightwards together, the six sliding blocks 15 can respectively drive the first connecting rods 16 to move rightwards together, the other ends of the first connecting rods 16 of the connecting rods can respectively drive the sealing blocks 8 connected with the connecting rods to move towards the pressure container 7, the six sealing blocks 8 can drive the bag body at the left opening of the detection bag 6 to move towards the pressure container 7 together until the sealing blocks 8 drive the bag body to be attached to the outer wall of the left side of the pressure container 7 together, the six sealing blocks 8 can enable the left opening of the detection bag 6 to be completely attached to the surface of the pressure container 7, at the moment, the first clamping plate 12 just moves to the position attached to the left wall of the pressure container 7, the air inlet pipe 13 is inserted into the pressure container 7, then the third air cylinder 18 is started to move leftwards, when the third air cylinder 18 moves rightwards, the second clamping plate 17 and the rack rod 33 are together, the rack bar 33 will rotate the first gear 31 engaged with it by the teeth, the rotation of the first gear 31 will rotate the second gear 30, the second gear 30 will rotate the first bevel gear 29, and the first bevel gear 29 will rotate the cylindrical cam 25. The cylindrical cam 25 drives the projection 28 to move back and forth in the left-right direction through the cam groove 27, the projection 28 drives the drawing plate 24 to draw back and forth in the air extracting cylinder 19, when the drawing plate 24 moves rightwards, the second elastic sealing sheet 23 closes the air outlet 22, the first elastic sealing sheet 21 is opened, the drawing plate 24 pumps the air in the detection bag 6 with a sealed opening into the air extracting cylinder 19 through the air pumping hose 20, when the drawing plate 24 moves leftwards, the first elastic sealing sheet 21 closes the air pumping hose 20, the second elastic sealing sheet 23 opens the air outlet 22, the drawing plate 24 pushes the air in the air extracting cylinder 19 out into the air, when the drawing plate 24 moves rightwards again, the air in the detection bag 6 is pumped out and then discharged, until the air in the detection bag 6 is completely pumped out, the second clamping plate 17 clamps the right side wall of the pressure container 7, then the first air cylinder 5 can be started to shrink downwards, so that the first air cylinder 5 drives the first sliding rod 3 and the arc-shaped supporting plate 4 to move downwards, the arc-shaped supporting plate 4 does not support the detection bag 6 and the pressure container 7 any more, then gas can be continuously introduced into the pressure container 7 through the gas inlet pipe 13, the gas introduction can be stopped after the gas reaches a certain amount, then a worker only needs to observe the periphery of the detection bag 6, if the gas in the pressure container 7 leaks into the detection bag 6 from cracks when the pressure container 7 cracks, at the moment, the local swelling phenomenon of the detection bag 6 can occur, which means that the surface of the pressure container 7 is unqualified, the worker can judge the position of the cracks on the pressure container 7 through the swelling position, if the detection bag 6 does not have the swelling phenomenon, the pressure container 7 is qualified, through the arrangement of the detection bag 6 and the sealing block 8, the first clamping mechanism can clamp the left side wall of the pressure container 7 after the pressure container 7 is loaded into the detection bag 6, meanwhile, the first clamping mechanism can drive the sealing block 8 to drive the detection bag 6 to move to clamp the opening of the pressure container 7, so that the detection bag 6 is in a sealing state, then the second clamping mechanism can move to clamp the right side wall of the pressure container 7, the second clamping mechanism can drive the air pumping mechanism to move through the linkage mechanism while moving to completely pump out air in the sealed detection bag 6, so that the detection bag 6 is in a vacuum state, then the detection bag 6 and the pressure container 7 are suspended, the surface of the pressure container 7 can be conveniently observed, then gas is introduced into the pressure container 7, whether the pressure container 7 cracks or not can be judged through whether the gas leaks into the detection bag 6, if the gas in the pressure container 7 cracks or cracks occur, the gas in the pressure container 7 can leak into the detection bag 6 from the cracks, at the moment, the local part of the detection bag 6 can bulge phenomenon occurs, and the situation indicates that the surface of the pressure container 7 has cracks or not, if the detection bag 6 does not have the bulge phenomenon, the pressure container 7 is qualified, and the staff can judge the position of the crack on the pressure container 7 through the bulge position, so that the subsequent repair of the pressure container 7 can be facilitated, the detection accuracy of the pressure container 7 can be ensured, and the condition that the detection of the pressure container 7 is incorrect due to the careless operation of the staff can be avoided.
As a further scheme of the invention, the front and rear side walls of six sealing blocks 8 are respectively provided with a second mounting groove 35, and the adjacent second mounting grooves 35 on two adjacent sealing blocks 8 are fixedly connected with a telescopic baffle 36 which can be accommodated in the second mounting grooves 35; when the detection device works, the sealing block 8 drives the detection bag 6 to move to seal the opening of the detection bag 6, the telescopic baffle 36 can stop the bag body of the detection bag 6 between every two sealing blocks 8 at the inner side of the telescopic baffle 36, so that the detection bag 6 between the sealing blocks 8 can be prevented from bulging in the moving process of the sealing blocks 8, when the sealing blocks 8 drive the detection bag 6 to be attached to the surface of the pressure container 7, the opening of the detection bag 6 can be completely attached to the pressure container 7, and meanwhile, the telescopic baffle 36 can be taken into the sealing blocks 8, through the arrangement of the telescopic baffle 36, the detection bag 6 between the sealing blocks 8 can be shielded inside when the sealing blocks 8 drive the detection bag 6 to move, so that the detection bag 6 cannot bulge, the bag body at the opening of the detection bag 6 can be completely attached to the pressure container 7 by the sealing blocks 8, and the sealing property in the detection bag 6 can be ensured, the detection bag 6 can be made to better detect the pressure container 7.
As a further scheme of the invention, the left side walls of the six sliding blocks 15 are fixedly connected with pressure springs 37, and the left ends of the pressure springs 37 are fixedly connected to the right side wall of the hexagonal sliding plate 10; during operation, the sealing block 8 can be better sealed with the detection bag 6 by the arrangement of the pressure spring 37.
The working principle is as follows: when the pressure container 7 needs to be detected, a worker firstly takes the first clamping plate 12 down from the first installation groove 11, then the pressure container 7 is loaded into the detection bag 6 through the first installation groove 11, the detection bag 6 loaded with the pressure container 7 can stay on the arc-shaped supporting plate 4, then the first clamping plate 12 can be fixed into the first installation groove 11 again, the second air cylinder 14 is started to extend rightwards, the second air cylinder 14 can drive the hexagonal sliding plate 10 and the first clamping plate 12 to move rightwards together, the hexagonal sliding plate 10 moves rightwards to be in contact with the six sliding blocks 15, the hexagonal sliding plate 10 can drive the six sliding blocks 15 to move rightwards together, the six sliding blocks 15 can respectively drive the first connecting rod 16 to move rightwards together, the other end of the first connecting rod 16 of the connecting rod can respectively drive the sealing block 8 connected with the connecting rod to move towards the pressure container 7, and the six sealing blocks 8 can drive the bag body on the left side of the detection bag 6 to move towards the pressure container 7 together And moving until the sealing blocks 8 drive the bag body to be attached to the outer wall of the left side of the pressure container 7 together, the six sealing blocks 8 can enable the left opening of the detection bag 6 to be completely attached to the surface of the pressure container 7, at the moment, the first clamping plate 12 just moves to the position attached to the left side wall of the pressure container 7, the air inlet pipe 13 is inserted into the pressure container 7, then the third air cylinder 18 is started to move leftwards, the second clamping plate 17 and the rack bar 33 move rightwards together when the third air cylinder 18 moves rightwards, the rack bar 33 drives the first gear 31 meshed with the rack bar to rotate through the teeth, the first gear 31 rotates to drive the second bevel gear 30 to rotate, the second bevel gear 30 drives the first bevel gear 29 to rotate, and the first bevel gear 29 drives the cylindrical cam 25 to rotate together. The cylindrical cam 25 drives the projection 28 to move back and forth in the left-right direction through the cam groove 27, the projection 28 drives the drawing plate 24 to draw back and forth in the air extracting cylinder 19, when the drawing plate 24 moves rightwards, the second elastic sealing sheet 23 closes the air outlet 22, the first elastic sealing sheet 21 is opened, the drawing plate 24 pumps the air in the detection bag 6 with a sealed opening into the air extracting cylinder 19 through the air pumping hose 20, when the drawing plate 24 moves leftwards, the first elastic sealing sheet 21 closes the air pumping hose 20, the second elastic sealing sheet 23 opens the air outlet 22, the drawing plate 24 pushes the air in the air extracting cylinder 19 out into the air, when the drawing plate 24 moves rightwards again, the air in the detection bag 6 is pumped out and then discharged, until the air in the detection bag 6 is completely pumped out, the second clamping plate 17 clamps the right side wall of the pressure container 7, then the first air cylinder 5 can be started to shrink downwards, so that the first air cylinder 5 drives the first sliding rod 3 and the arc-shaped supporting plate 4 to move downwards, the arc-shaped supporting plate 4 does not support the detection bag 6 and the pressure container 7 any more, then gas can be continuously introduced into the pressure container 7 through the gas inlet pipe 13, the gas introduction can be stopped after the gas reaches a certain amount, then a worker only needs to observe the periphery of the detection bag 6, if the gas in the pressure container 7 leaks into the detection bag 6 from cracks when the pressure container 7 cracks, at the moment, the local swelling phenomenon of the detection bag 6 can occur, which means that the surface of the pressure container 7 is unqualified, the worker can judge the position of the cracks on the pressure container 7 through the swelling position, if the detection bag 6 does not have the swelling phenomenon, the pressure container 7 is qualified, through the arrangement of the detection bag 6 and the sealing block 8, the first clamping mechanism can clamp the left side wall of the pressure container 7 after the pressure container 7 is loaded into the detection bag 6, meanwhile, the first clamping mechanism can drive the sealing block 8 to drive the detection bag 6 to move to clamp the opening of the pressure container 7, so that the detection bag 6 is in a sealing state, then the second clamping mechanism can move to clamp the right side wall of the pressure container 7, the second clamping mechanism can drive the air pumping mechanism to move through the linkage mechanism while moving to completely pump out air in the sealed detection bag 6, so that the detection bag 6 is in a vacuum state, then the detection bag 6 and the pressure container 7 are suspended, the surface of the pressure container 7 can be conveniently observed, then gas is introduced into the pressure container 7, whether the pressure container 7 cracks or not can be judged through whether the gas leaks into the detection bag 6, if the gas in the pressure container 7 cracks or cracks occur, the gas in the pressure container 7 can leak into the detection bag 6 from the cracks, at the moment, the local part of the detection bag 6 can bulge phenomenon occurs, and the situation indicates that the surface of the pressure container 7 has cracks or not, if the detection bag 6 does not have the bulge phenomenon, the pressure container 7 is qualified, and the staff can judge the position of the crack on the pressure container 7 through the bulge position, so that the subsequent repair of the pressure container 7 can be facilitated, the detection accuracy of the pressure container 7 can be ensured, and the condition that the detection of the pressure container 7 is incorrect due to the careless operation of the staff can be avoided.
Claims (7)
1. The utility model provides a pressure vessel nondestructive test frock, includes bottom plate (1), the top fixedly connected with mount pad (2) of bottom plate (1), its characterized in that: the detection device is characterized in that the top of the mounting seat (2) is connected with a first slide bar (3) in a sliding manner in the vertical direction, the top of the first slide bar (3) is fixedly connected with an arc-shaped supporting plate (4), the bottom of the first slide bar (3) is fixedly connected with a first air cylinder (5), the bottom of the first air cylinder (5) is fixedly connected with the top of the bottom plate (1), the top of the arc-shaped supporting plate (4) is provided with a detection bag (6), a pressure container (7) is loaded in the detection bag (6), six sealing blocks (8) are fixedly connected to the outer side of a left opening of the detection bag (6), the left side of the detection bag (6) is provided with a first clamping mechanism, the first clamping mechanism is used for clamping the left side of the pressure container (7) and enabling the six sealing blocks (8) to move to seal the left opening of the detection bag (6), the right side of the detection bag (6) is provided with a second clamping mechanism, the second clamping mechanism is used for clamping the right side of the detection bag (6), the top of the mounting seat (2) is provided with an air exhaust mechanism and a linkage mechanism, and the air exhaust mechanism is driven by the second clamping mechanism through the linkage mechanism to exhaust the sealed detection bag (6).
2. The nondestructive testing tool for pressure vessels according to claim 1, characterized in that: the first clamping mechanism comprises a hexagonal sliding seat (9), the hexagonal sliding seat (9) is fixedly connected to the top of the mounting seat (2) through a mounting column, the hexagonal sliding seat (9) is connected with a sealing block (8) in an equal sliding manner, the inner wall of the hexagonal sliding seat (9) is connected with a hexagonal sliding plate (10) in a left-right direction in a sliding manner, a first mounting groove (11) is formed in the central position of the hexagonal sliding plate (10), a detachable first clamping plate (12) is fixedly connected in the first mounting groove (11), an air inlet pipe (13) capable of being spliced with an opening in the left side of the pressure container (7) is fixedly connected to the central position of the first clamping plate (12), a second air cylinder (14) is fixedly connected to the left side wall of the hexagonal sliding plate (10), and the second air cylinder (14) is fixedly connected to the left side wall of the mounting seat (2) through the mounting column, the right side of hexagon slide (10) is provided with six sliding blocks (15) of sliding connection on hexagon slide (9) inner wall, six all rotate on slider (15) and be connected with first connecting rod (16), six the other end of first connecting rod (16) rotates respectively to be connected in on its outer wall apart from nearest sealed piece (8).
3. The nondestructive testing tool for pressure vessels according to claim 1, characterized in that: second clamping mechanism includes second splint (17), first splint (12) sliding connection is in the right-hand left direction in the top of mount pad (2), and fixedly connected with third cylinder (18) on the right side wall of second splint (17), third cylinder (18) fixed connection is on the top right side of mount pad (2).
4. The nondestructive testing tool for pressure vessels according to claim 1, characterized in that: air exhaust mechanism includes pump bowl (19), pump bowl (19) fixed connection is at the top of mount pad (2), fixedly connected with and air exhaust hose (20) of its inside intercommunication on the left side wall of pump bowl (19), air exhaust hose (20) keep away from the one end of pump bowl (19) extend to detect bag (6) left side inside and with the left side inner wall fixed connection who detects bag (6), fixed connection is used for sheltering from first elasticity gasket (21) of air exhaust hose (20) on the left side inner wall of pump bowl (19), gas outlet (22) have been seted up on the antetheca of pump bowl (19), the outside of gas outlet (22) is provided with second elasticity gasket (23) of fixed connection on pump bowl (19) antetheca, sliding connection has pull board (24) on the left right direction of the inner wall of pump bowl (19).
5. The nondestructive testing tool for pressure vessels according to claim 4, wherein the nondestructive testing tool comprises: the linkage mechanism comprises a cylindrical cam (25), wherein the left end and the right end of the cylindrical cam (25) are respectively and rotatably connected with a first mounting plate (26), the two first mounting plates (26) are respectively and fixedly connected to the tops of a mounting seat (2) and an air pumping cylinder (19), a cam groove (27) is formed in the cylindrical cam (25), a convex block (28) is slidably connected in the cam groove (27), the convex block (28) is fixedly connected to the top of a pulling plate (24), a first bevel gear (29) is fixedly connected to a rotating shaft of the cylindrical cam (25), a second bevel gear (30) meshed with the first bevel gear (29) is arranged on the rear side of the first bevel gear (29), a first gear (31) is fixedly connected to the rotating shaft of the second bevel gear (30), and a second mounting plate (32) is rotatably connected to the rotating shaft of the first gear (31), the below meshing of first gear (31) has rack bar (33), rack bar (33) fixed connection is on the antetheca of second splint (17), the bottom sliding connection of rack bar (33) has rectangle slide (34) of fixed connection on first mounting panel (26) top, second mounting panel (32) fixed connection is on the lateral wall of rectangle slide (34).
6. The nondestructive testing tool for pressure vessels according to claim 1, characterized in that: six all seted up second mounting groove (35), adjacent two on the lateral wall around sealed piece (8) common fixedly connected with can hold into telescopic baffle (36) of second mounting groove (35) in second mounting groove (35) close on sealed piece (8).
7. The nondestructive testing tool for pressure vessels according to claim 2, characterized in that: six equal fixedly connected with pressure spring (37) on the left side wall of slider (15), the common fixed connection of the left end of pressure spring (37) is on the right side wall of hexagon slide (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110882702.7A CN113700630A (en) | 2021-08-02 | 2021-08-02 | Nondestructive testing tool for pressure container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110882702.7A CN113700630A (en) | 2021-08-02 | 2021-08-02 | Nondestructive testing tool for pressure container |
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| Publication Number | Publication Date |
|---|---|
| CN113700630A true CN113700630A (en) | 2021-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110882702.7A Pending CN113700630A (en) | 2021-08-02 | 2021-08-02 | Nondestructive testing tool for pressure container |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117030113A (en) * | 2023-08-03 | 2023-11-10 | 无锡市特种压力表有限公司 | Anti external environment interference formula manometer capability test equipment |
-
2021
- 2021-08-02 CN CN202110882702.7A patent/CN113700630A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117030113A (en) * | 2023-08-03 | 2023-11-10 | 无锡市特种压力表有限公司 | Anti external environment interference formula manometer capability test equipment |
| CN117030113B (en) * | 2023-08-03 | 2024-03-26 | 无锡市特种压力表有限公司 | Anti external environment interference formula manometer capability test equipment |
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