Radiographic inspection device for large-diameter pipe fitting

Abstract

The invention belongs to the technical field of pipe radiographic inspection, and particularly relates to a large-diameter pipe radiographic inspection device which comprises a bottom plate with a supporting leg device and a radiographic inspection assembly, a gantry work frame is mounted at the top of the bottom plate with the supporting leg device, and height adjusting seats are movably mounted on two side frames of the gantry work frame; the radiographic inspection assembly is arranged between the two height adjusting seats, the radiographic inspection assembly is composed of a controller and an external penetrating probe, and the external penetrating probe is fixedly installed on the controller. According to the device, the device can adapt to detection of large-diameter pipe fittings, the height of the height adjusting seat can be adjusted, only abutting pins with different lengths need to be replaced, then the height of the external penetrating probe can be adjusted, the distance between the external penetrating probe and the pipe fittings can be changed, and therefore the device can adapt to the pipe fittings with different diameters; the pipe fitting can be quickly positioned, and pipe fittings with different calibers can be fixed.

Description

Technical Field

[0001] The present invention relates to a ray flaw detection device for pipe fittings, and more particularly to a ray flaw detection device for large-diameter pipe fittings. Background Art

[0002] A pipeline is a device connected by pipes, pipe connectors, valves, etc. for transporting gases, liquids, or fluids with solid particles. The principle of a ray flaw detector is a non-destructive flaw detection method that uses the characteristics of X-rays to penetrate substances and attenuate in substances to detect defects therein, and is usually used for the detection of pipeline welds.

[0003] For example, the Chinese patent document with the authorization announcement number CN 208805480 U discloses a ray flaw detection device. In order to improve the efficiency of ray flaw detection for the butt welds of pipe fittings and plate butt welds, the present utility model discloses a ray flaw detection device. The ray flaw detection device includes a support disk, a bracket, and a plurality of fixing frames; the support disk is a circular ring-shaped plate structure, and the bracket is located at the center of the support disk for fixing the ray machine; the fixing frames are used to fix the test pieces to be detected, and a plurality of the fixing frames are circumferentially distributed and fixed on the support disk. When using the ray flaw detection device of the present utility model in cooperation with a ray machine to perform ray detection on welded test pieces, the efficiency of ray flaw detection for the butt welds of pipe fittings and plate butt welds can be improved.

[0004] Aiming at the above-mentioned prior art, the following defects exist in use: When the existing ray flaw detection device performs flaw detection on a pipeline, it is necessary to adjust the position of the pipeline for flaw detection. During the adjustment of the pipeline position, it is easy to occur position deviation, making the flaw detection device unable to accurately perform flaw detection on the pipeline, reducing the accuracy of the flaw detection data, and the pipeline is usually relatively heavy, inconvenient to adjust the position of the pipeline, and relatively laborious. Therefore, the present invention designs a ray flaw detection device for large-diameter pipe fittings. Summary of the Invention

[0005] The main purpose of the present disclosure is to provide a ray flaw detection device for large-diameter pipe fittings to effectively solve the problems raised by the inventor in the above background art.

[0006] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] A large-diameter pipe fitting ray flaw detection device, comprising a base plate with a leg device and a ray flaw detection assembly. A gantry workbench is installed on the top of the base plate with a leg device, and height adjustment seats are movably installed on both side frames of the gantry workbench. The ray flaw detection assembly is arranged between the two height adjustment seats and consists of a controller and an external penetration probe. The external penetration probe is fixedly installed on the controller, and the controller is movably installed between the two height adjustment seats. Two groups of pipe fitting positioning sleeves are movably installed on the top of the base plate with a leg device, and the external penetration probe is located above the two groups of pipe fitting positioning sleeves. A displacement roller is installed on the top of the base plate with a leg device for driving the large-diameter pipe fitting to move.

[0008] Preferably, two X-axis flat cross plates are fixedly installed between the two height adjustment seats and are distributed vertically. A driving moving seat is slidably penetrated through the X-axis flat cross plate, and a control servo motor is fixedly installed on the back of the driving moving seat. An activity cavity is formed in the driving moving seat. The output end of the control servo motor extends into the activity cavity and is fixedly installed with a rolling gear. An array of teeth is fixedly installed on the top of the upper X-axis flat cross plate, and the rolling gear is in meshing transmission with the array of teeth. During detection, the external penetration probe and the control servo motor work. The control servo motor drives the rolling gear to rotate. Under the meshing action of the rolling gear and the array of teeth, the rolling gear will roll along the array of teeth on the X-axis flat cross plate to generate displacement, and the driving moving seat will drive the controller and the external penetration probe to move, so that the external penetration probe performs ray flaw detection on the pipe fitting, and the external penetration probe moves along the length direction of the pipe fitting, thereby improving the comprehensiveness of the detection and ensuring no omission of the detection position.

[0009] Preferably, two through holes are formed in the driving moving seat, and the two X-axis flat cross plates respectively penetrate through the two through holes. The activity cavity is communicated with the upper through hole, and the array of teeth penetrates through the upper through hole.

[0010] Preferably, a length opening is formed in the side frame of the gantry workbench, the height adjustment seat is slidably installed in the length opening, a resistance pin is placed in the length opening, the bottom end of the resistance pin abuts against the inner bottom wall of the length opening, and the top end abuts against the bottom of the height adjustment seat.

[0011] Preferably, a rotating shaft is fixedly installed at the bottom of the left side frame of the gantry workbench, and the rotating shaft is rotatably installed on the top of the base plate with a leg device.

[0012] Preferably, the pipe fitting positioning sleeve is composed of two arc-shaped frame structures. Four closing openings distributed in a rectangular array are formed at the top of the bottom plate of the device with legs. A flat slider is slidably installed in each closing opening, and a vertical bracket is fixedly installed at the top of the flat slider. The arc-shaped frame structure is fixedly installed at the top of the vertical bracket. A closing assembly is arranged in the bottom plate of the device with legs, and the closing assembly is used to drive the flat slider to move.

[0013] Preferably, the closing assembly includes a through cavity, a straight rod, a compression spring, a guide pulley, a first electric push rod and an inelastic rope. A through cavity is formed in the bottom plate of the device with legs, and the through cavity communicates with the closing opening. A guide pulley is fixedly installed in the through cavity. A first electric push rod is fixedly installed on the side surface of the bottom plate of the device with legs, and the output end of the first electric push rod extends into the bottom plate of the device with legs and is fixedly connected with an inelastic rope. The other end of the inelastic rope passes through the guide pulley and is fixedly connected to the flat slider. A straight rod is slidably penetrated and installed between two flat sliders on the same side, and a compression spring is sleeved on the straight rod. The two ends of the compression spring are respectively fixedly connected to the adjacent sides of the two flat sliders and can be adapted to the detection of large-diameter pipe fittings. The height of the height adjustment seat can be adjusted. Only by replacing anti-resistance pins with different lengths can the height of the outer-penetrating probe be adjusted. Then, the distance between the outer-penetrating probe and the pipe fitting can be changed to adapt to pipe fittings of different diameters. In addition, since the arc-shaped frame structure can move, not only can the pipe fitting be quickly positioned, but also pipe fittings of different diameters can be fixed.

[0014] Preferably, a second electric push rod is fixedly installed at the top of the bottom plate of the device with legs, and the output end of the second electric push rod is fixedly connected with a rectangular frame. At least two displacement rollers are rotatably installed in the rectangular frame, and the upper ends of the displacement rollers extend outside the rectangular frame. For the detection of longer pipe fittings: after the part between the two pipe fitting positioning sleeves is detected, the first electric push rod works to make its output end move towards the movable cavity. Under the elastic force of the compression spring, the two flat sliders move away from each other, and then the arc-shaped frame structure separates to release the fixation of the pipe fitting. Subsequently, the second electric push rod works to drive the rectangular frame to move upward, and the driving assembly drives the displacement rollers to rotate, so that the displacement rollers lift and transport the pipe fitting, and the undetected position of the pipe fitting moves below the outer-penetrating probe, thereby achieving the purpose of continuous detection.

[0015] In view of this, compared with the prior art, the beneficial effects of the present invention are:

[0016] (1). In this application, the pipe fitting to be detected is placed between two pipe fitting positioning sleeves, that is, the pipe fitting passes through between the two pipe fitting positioning sleeves and is fixed under the closing and extrusion of the arc-shaped frame structure. During detection, the outer penetration probe and the control servo motor work. The control servo motor drives the rolling gear to rotate. Under the meshing action of the rolling gear and the array of teeth, the rolling gear will roll and displace along the array of teeth on the X-axis flat cross plate, and the active moving seat will drive the controller and the outer penetration probe to move, so that the outer penetration probe performs radiographic inspection on the pipe fitting, and the outer penetration probe moves along the length direction of the pipe fitting, thereby improving the comprehensiveness of the detection and ensuring that there are no omissions in the detection positions.

[0017] (2). In this application, for the detection of longer pipe fittings: after the part between the two pipe fitting positioning sleeves is detected, the first electric push rod works, and its output end moves towards the direction of the movable cavity. Under the elastic force of the compression spring, the two flat sliders move away from each other, and the arc-shaped frame structure separates to release the fixation of the pipe fitting. Subsequently, the second electric push rod works, driving the rectangular frame to move upward, and the driving component drives the displacement roller to rotate, so that the displacement roller lifts and transports the pipe fitting, and the undetected position of the pipe fitting moves below the outer penetration probe, thereby achieving the purpose of continuous detection and making the work efficiency better.

[0018] (3). In this application, it can be adapted to the detection of large-diameter pipe fittings. The height of the height adjustment seat can be adjusted. Only different lengths of resistance pins need to be replaced, and then the height of the outer penetration probe can be adjusted. The distance between the outer penetration probe and the pipe fitting can be changed to adapt to pipe fittings of different diameters. In addition, since the arc-shaped frame structure can move, it can not only quickly locate the pipe fitting but also fix pipe fittings of different diameters. Description of the Drawings

[0019] Figure 1 The following shows the three-dimensional structure diagram of the radiographic inspection device for large-diameter pipe fittings provided by the present invention;

[0020] Figure 2 The following shows Figure 1 the three-dimensional structure diagram of the first part in

[0021] Figure 3 The following shows Figure 1 the three-dimensional structure diagram of the second part in

[0022] Figure 4 The following shows the internal structure schematic diagram of the active moving seat;

[0023] Figure 5 The following shows the top view of the closing assembly;

[0024] Figure 6 The following shows the three-dimensional diagram of the height adjustment seat.

[0025] Icon:

[0026] 1 - Base plate of the leg device; 101 - Through cavity; 102 - Straight rod; 103 - Compression spring; 104 - Guide pulley; 105 - First electric push rod; 106 - Inelastic rope;

[0027] 2 - Gantry workbench; 201 - Length opening; 202 - Resistance pin; 203 - Rotating shaft;

[0028] 3 - Height adjustment seat; 301 - X-axis flat cross plate; 302 - Array of teeth; 303 - Active moving seat; 304 - Control servo motor; 305 - Activity cavity; 306 - Rolling gear;

[0029] 4 - Controller; 401 - Outer penetration probe;

[0030] 5 - Pipe fitting positioning sleeve; 501 - Closing opening; 502 - Flat slider; 503 - Vertical support;

[0031] 6 - Displacement roller; 601 - Second electric push rod; 602 - Rectangular frame. Detailed implementation mode

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Please refer to Figures 1-6 , the present invention provides the following embodiments:

[0034] A large-diameter pipe fitting ray flaw detection device includes a base plate 1 of the leg device and a ray flaw detection assembly. A gantry workbench 2 is installed on the top of the base plate 1 of the leg device, and height adjustment seats 3 are movably installed on both side frames of the gantry workbench 2. The ray flaw detection assembly is arranged between the two height adjustment seats 3, and the ray flaw detection assembly is composed of a controller 4 and an outer penetration probe 401. The outer penetration probe 401 is fixedly installed on the controller 4, and the controller 4 is movably installed between the two height adjustment seats 3. Two groups of pipe fitting positioning sleeves 5 are movably installed on the top of the base plate 1 of the leg device. The outer penetration probe 401 is located above the two groups of pipe fitting positioning sleeves 5. A displacement roller 6 is installed on the top of the base plate 1 of the leg device for driving the large-diameter pipe fitting to move.

[0035] Specifically, two X-axis flat cross plates 301 are fixedly installed between the two height adjustment seats 3, and the two X-axis flat cross plates 301 are distributed vertically. An active moving seat 303 is slidably installed through the X-axis flat cross plate 301, and a control servo motor 304 is fixedly installed on the back of the active moving seat 303. The controller 4 is fixedly installed on the active moving seat 303. An activity cavity 305 is formed in the active moving seat. The output end of the control servo motor 304 extends into the activity cavity 305 and is fixedly installed with a rolling gear 306. An array of teeth 302 is fixedly installed on the top of the upper X-axis flat cross plate 301, and the rolling gear 306 is in meshing transmission with the array of teeth 302. Two through holes are formed in the active moving seat, and the two X-axis flat cross plates 301 respectively penetrate through the two through holes. The activity cavity 305 is communicated with the upper through hole, and the array of teeth 302 penetrates through the upper through hole.

[0036] Specifically, a length opening 201 is formed in the side frame of the gantry workbench 2. The height adjustment seat 3 is slidably installed in the length opening 201. A resistance pin 202 is placed in the length opening 201. The bottom end of the resistance pin 202 abuts against the inner bottom wall of the length opening 201, and the top end abuts against the bottom of the height adjustment seat 3. A rotating shaft 203 is fixedly installed at the bottom of the left side frame of the gantry workbench 2, and the rotating shaft 203 is rotatably installed on the top of the base plate 1 of the leg support device.

[0037] Specifically, the pipe fitting positioning sleeve 5 is composed of two arc-shaped frame structures. Four closing openings 501 distributed in a rectangular array are formed in the top of the base plate 1 of the leg support device. A flat slider 502 is slidably installed in each closing opening 501, and a vertical support 503 is fixedly installed on the top of the flat slider 502. The arc-shaped frame structure is fixedly installed at the top end of the vertical support 503. A closing assembly is arranged in the base plate 1 of the leg support device, and the closing assembly is used to drive the flat slider 502 to move. The closing assembly includes a through cavity 101, a straight rod 102, a compression spring 103, a guiding pulley 104, a first electric push rod 105, and an inelastic rope 106. A through cavity 101 is formed in the base plate 1 of the leg support device, and the through cavity 101 is communicated with the closing opening 501. A guiding pulley 104 is fixedly installed in the through cavity 101. A first electric push rod 105 is fixedly installed on the side of the base plate 1 of the leg support device, and the output end of the first electric push rod 105 extends into the base plate 1 of the leg support device and is fixedly connected with an inelastic rope 106. The other end of the inelastic rope 106 passes through the guiding pulley 104 and is fixedly connected to the flat slider 502. A straight rod 102 is slidably installed through between the two flat sliders 502 on the same side, and a compression spring 103 is sleeved on the straight rod 102. The two ends of the compression spring 103 are respectively fixedly connected to the adjacent sides of the two flat sliders 502.

[0038] Specifically, a second electric push rod 601 is fixed to the top of the bottom plate 1 of the outrigger device, and the output end of the second electric push rod 601 is fixedly connected to a rectangular frame 602. At least two displacement rollers 6 are rotatably installed in the rectangular frame 602, and the upper end of the displacement roller 6 extends outside the rectangular frame 602. The displacement roller 6 can be driven to rotate by an external drive assembly, and the drive assembly can be a drive motor.

[0039] The specific implementation of this embodiment is as follows: Place the pipe fittings to be detected between the two pipe fitting positioning sleeves 5, that is, the pipe fittings pass through between the two pipe fitting positioning sleeves 5 and are fixed under the closing and squeezing of the arc-shaped frame structure. During detection, the external penetration probe 401 and the control servo motor 304 work. The control servo motor 304 drives the rolling gear 306 to rotate. Under the meshing action of the rolling gear 306 and the array of teeth 302, the rolling gear 306 will roll and displace along the array of teeth 302 on the X-axis flat cross plate 301, and the active moving seat 303 drives the controller 4 and the external penetration probe 401 to move, so that the external penetration probe 401 performs radiographic flaw detection on the pipe fittings, and the external penetration probe 401 moves along the length direction of the pipe fittings, thereby improving the comprehensiveness of detection and ensuring no omission of the detection position.

[0040] For the detection of longer pipe fittings: After the detection of the part between the two pipe fitting positioning sleeves 5 is completed, the first electric push rod 105 works, and its output end moves towards the direction of the movable cavity 305. Under the elastic force of the compression spring 103, the two flat sliders 502 move away from each other, and the arc-shaped frame structure separates to release the fixation of the pipe fittings. Subsequently, the second electric push rod 601 works, driving the rectangular frame 602 to move upward. The drive assembly drives the displacement roller 6 to rotate, and the displacement roller 6 lifts and transports the pipe fittings, so that the undetected position of the pipe fittings moves below the external penetration probe, thereby achieving the purpose of continuous detection and making the working efficiency better.

[0041] And it can adapt to the detection of large-diameter pipe fittings. The height of the height adjustment seat 3 can be adjusted. Only different lengths of resistance pins need to be replaced, and then the height of the external penetration probe 401 can be adjusted. The distance between the external penetration probe 401 and the pipe fittings can be changed to adapt to pipe fittings of different diameters. In addition, since the arc-shaped frame structure can move, it can not only quickly locate the pipe fittings but also fix pipe fittings of different diameters.

[0042] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0043] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A large-diameter pipe fitting ray flaw detection device, characterized in that: It includes a base plate (1) of the leg device and a ray detection component. A gantry frame (2) is installed on the top of the base plate (1) of the leg device. Height adjustment seats (3) are movably installed on both side frames of the gantry frame (2). The ray detection component is arranged between the two height adjustment seats (3). The ray detection component consists of a controller (4) and an external penetration probe (401). The external penetration probe (401) is fixedly installed on the controller (4), and the controller (4) is movably installed between the two height adjustment seats (3). Two groups of pipe fitting positioning sleeves (5) are movably installed on the top of the base plate (1) of the leg device. The external penetration probe (401) is located above the two groups of pipe fitting positioning sleeves (5). A displacement roller (6) is installed on the top of the base plate (1) of the leg device for driving the movement of large-diameter pipe fittings.

2. The radiographic inspection device for large-diameter pipe fittings according to claim 1, characterized in that: Two X-axis flat horizontal plates (301) are fixedly installed between the two height adjustment seats (3), and the two X-axis flat horizontal plates (301) are distributed vertically. A driving moving seat (303) is slidably penetrated and installed on the X-axis flat horizontal plate (301). A control servo motor (304) is fixedly installed on the back of the driving moving seat (303). An activity cavity (305) is formed in the driving moving seat. The output end of the control servo motor (304) extends into the activity cavity (305) and is fixedly installed with a rolling gear (306). An array of teeth (302) is fixedly installed on the top of the upper X-axis flat horizontal plate (301), and the rolling gear (306) meshes with the array of teeth (302) for transmission.

3. The radiographic inspection device for large-diameter pipe fittings according to claim 2, characterized in that: Two through holes are formed in the driving moving seat, and the two X-axis flat horizontal plates (301) respectively penetrate through the two through holes. The activity cavity (305) is communicated with the upper through hole, and the array of teeth (302) penetrates through the upper through hole.

4. A large-diameter pipe fitting ray flaw detection device according to claim 2, characterized in that: A length opening (201) is formed in the side frame of the gantry frame (2). The height adjustment seat (3) is slidably installed in the length opening (201). A resistance pin (202) is placed in the length opening (201). The bottom end of the resistance pin (202) abuts against the inner bottom wall of the length opening (201), and the top end abuts against the bottom of the height adjustment seat (3).

5. The radiographic inspection device for large-diameter pipe fittings according to claim 4, wherein: A rotating shaft (203) is fixedly installed at the bottom of the left side frame of the gantry frame (2), and the rotating shaft (203) is rotatably installed on the top of the base plate (1) of the leg device.

6. The radiographic inspection device for large-diameter pipe fittings according to claim 5, wherein: The pipe fitting positioning sleeve (5) consists of two arc-shaped frame structures. Four closing openings (501) distributed in a rectangular array are formed on the top of the base plate (1) of the leg device. A flat slider (502) is slidably installed in each closing opening (501). A vertical support (503) is fixedly installed on the top of the flat slider (502). The arc-shaped frame structure is fixedly installed at the top of the vertical support (503). A closing component is arranged in the base plate (1) of the leg device, and the closing component is used to drive the movement of the flat slider (502).

7. The radiographic inspection device for large-diameter pipe fittings according to claim 6, wherein: The closing assembly includes a through cavity (101), a straight rod (102), a compression spring (103), a guiding pulley (104), a first electric push rod (105) and an inelastic rope (106). A through cavity (101) is formed in the bottom plate (1) of the leg-equipped device, and the through cavity (101) communicates with the closing opening (501). A guiding pulley (104) is fixedly installed in the through cavity (101). A first electric push rod (105) is fixedly installed on the side surface of the bottom plate (1) of the leg-equipped device, and the output end of the first electric push rod (105) extends into the bottom plate (1) of the leg-equipped device and is fixedly connected to an inelastic rope (106). The other end of the inelastic rope (106) passes through the guiding pulley (104) and is fixedly connected to the flat slider (502). A straight rod (102) is slidably penetrated between two flat sliders (502) on the same side, and a compression spring (103) is sleeved on the straight rod (102). Two ends of the compression spring (103) are respectively fixedly connected to the adjacent sides of the two flat sliders (502).

8. A large-diameter pipe fitting radiographic inspection device according to claim 7, characterized in that: A second electric push rod (601) is fixed to the top of the bottom plate (1) of the leg-equipped device, and the output end of the second electric push rod (601) is fixedly connected to a rectangular frame (602). At least two displacement rollers (6) are rotatably installed in the rectangular frame (602), and the upper ends of the displacement rollers (6) extend outside the rectangular frame (602).

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