A boiler pressure pipe detection device

Abstract

The application discloses a boiler pressure pipeline detection device, and relates to the technical field of energy power, which comprises a bottom plate, a top plate fixed on the outer ring of the top of the bottom plate through a plurality of support plates, a detection mechanism arranged between the top plate and the bottom plate and used for surface detection of the boiler pressure pipeline, a fixing ring, a driving mechanism arranged on the top of the fixing ring and used for moving the detection mechanism, a limiting mechanism arranged below the fixing ring and connected with the center of the top of the bottom plate and used for clamping and fixing the boiler pressure pipeline, and the like. The detection mechanism is arranged to work, the surface of the boiler pressure pipeline can be uniformly coated with the sound guide liquid, time and labor are saved, the work load is reduced, and the detection efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of energy and power technology, specifically to a boiler pressure pipeline detection device. Background Technology

[0002] Boiler pressure pipelines refer to tubular equipment used to transport gas or liquid under certain pressure. The scope is defined as pipelines with a maximum working pressure greater than or equal to 0.1 MPa (gauge pressure) for gas, liquefied gas, steam, or flammable, explosive, toxic, or corrosive liquid media, and a maximum working temperature higher than or equal to the standard boiling point, with a nominal diameter greater than 25 mm. These pipelines play a crucial role in boiler systems, responsible for safely and efficiently transporting various media to the required locations. After boiler pressure pipeline production is completed and before installation, the pipeline surface needs to be inspected. One of the inspection items is ultrasonic testing. Ultrasonic testing can quickly, conveniently, non-destructively, and accurately detect various internal defects in workpieces, such as cracks, welds, porosity, sand holes, inclusions, and folds. Therefore, ultrasonic testing equipment is required.

[0003] Existing methods for ultrasonic testing of boiler pressure pipelines mostly involve manually applying a sound-conducting liquid to the surface of the pipeline, which is inefficient. Then, an ultrasonic probe is held close to the surface of the pipeline and tested from one end to the other. Furthermore, some pressure pipelines are curved, making ultrasonic testing even more difficult. In short, the testing process is time-consuming, labor-intensive, and has low efficiency. To address these issues, the inventor proposes a boiler pressure pipeline testing device to solve these problems. Summary of the Invention

[0004] To address the problems of existing ultrasonic testing methods for boiler pressure pipelines, which often involve manually applying a sound-guiding liquid to the pipeline surface and then holding an ultrasonic probe close to the pipeline surface to test from one end to the other, and because some pressure pipelines are curved, making ultrasonic testing even more difficult, the present invention aims to provide a boiler pressure pipeline testing device.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a boiler pressure pipeline inspection device, comprising a base plate, a top plate fixedly mounted on the top outer ring of the base plate by a plurality of support plates, an inspection mechanism for surface inspection of boiler pressure pipelines provided between the top plate and the base plate, the inspection mechanism further comprising a first rotating ring rotatably engaged with one side of a fixed ring, a first fixing block fixedly mounted on the inner wall of the fixed ring, a first motor fixedly mounted on one side of the first fixing block, a first rotating shaft fixedly mounted on the output end of the first motor passing through the first fixing block, a first spur gear fitted on the surface of the first rotating shaft, and an internal gear ring meshing with the outer wall of the first spur gear and fixedly engaged with the inner wall of the first rotating ring. A second rotating ring is fixedly provided on one side of the internal gear ring. Two first sliding grooves are symmetrically formed at the top and bottom of one side of the second rotating ring. A first slider slides along the first sliding grooves. A first connecting strip is fixedly provided on one side of the first slider. Multiple second sliding grooves are symmetrically formed at both ends of one side of the second rotating ring. Second sliders slide along the second sliding grooves. A second connecting strip is fixedly provided on one side of the second slider. A second motor is fixedly installed on the outer wall of the first rotating ring. A second spur gear is fitted onto the output end of the second motor. A first external gear ring meshes with one end of the second spur gear and is fixedly engaged with one end of the second connecting strip. A through hole is formed on one side of the first external gear ring to slide with the first connecting strip. A U-shaped mounting block is fixedly provided at one end of the first connecting strip, which slides with the surface of the first external toothed ring. A V-shaped mounting plate is fixedly provided on the inner wall of the U-shaped mounting block. A second fixing block and two third fixing blocks are fixedly provided on both sides of the inner wall of the V-shaped mounting plate. An applicator roller is rotatably provided between the two third fixing blocks. A second rotating shaft is fixedly provided at one end of the applicator roller. A first bevel gear is fitted onto one end of the second rotating shaft through the third fixing block and the second fixing block, and the two first bevel gears mesh with each other. A third motor is fixedly installed at one end of one side of the outer wall of the V-shaped mounting plate. A third rotating shaft is fixedly provided at the output end of the third motor through the V-shaped mounting plate and is fixedly engaged with one of the second rotating shafts. The U-shaped mounting block... A fixing rod is fixedly installed on one side of the mounting block. A top block is fixedly installed on the surface of the fixing rod. A liquid storage tank is fixedly installed at the bottom of the top block. A liquid guide pipe is connected to the bottom of the liquid storage tank. Mounting holes are opened at the other ends of the outer walls of the V-shaped mounting plate. A nozzle is fixedly installed in the mounting hole and positioned opposite to the coating roller. A straight plate is fixedly installed at one end of the fixing rod. A mounting frame is fixedly installed on one side of the straight plate. An ultrasonic probe is installed inside the mounting frame. The detection mechanism includes a fixing ring. The top of the fixing ring is connected to a drive mechanism at the bottom of the top plate for moving the detection mechanism. A limiting mechanism for clamping and fixing the boiler pressure pipeline is provided below the fixing ring and connected to the center of the top of the bottom plate.

[0006] Preferably, the driving mechanism includes a pair of fixed plates fixedly engaged with the bottom of the top plate. A first rack is fixedly mounted on one side of the fixed plate, and a slide rail is fixedly mounted on the bottom of the fixed plate. A third slider is slidably mounted on the surface of the slide rail. A moving plate is fixedly mounted on the bottom of the third slider. A fourth fixed block is fixedly mounted on one end of one side of the moving plate. A fourth motor is fixedly mounted on one side of the fourth fixed block. Two fifth fixed blocks are fixedly mounted on the other end of the bottom of the moving plate. A fourth rotating shaft is rotatably mounted between the two fifth fixed blocks. One end of the fourth rotating shaft passes through one of the fifth fixed blocks and is fixedly engaged with the output end of the fourth motor. The fourth rotating shaft is driven by two meshing second bevel gears. The top end of the fifth rotating shaft passes through... The movable plate is fitted with a third spur gear that meshes with one side of the first rack. Two fixing bars are fixedly provided on the other side of the bottom of the movable plate. A third sliding groove is provided on one side of the fixing bar. A roller is rolled in the third sliding groove. A movable block is rotatably provided at the bottom of the roller. A fifth motor is fixedly installed at the center of the bottom of the movable block. A fourth spur gear is fitted through the movable block at the output end of the fifth motor. A second rack is fixedly fitted on one side of the fourth spur gear and is fixedly engaged with the other side of one of the fixing bars. A U-shaped mounting bracket is fixedly provided on the outer ring of the bottom of the movable block. A middle rod is fixedly provided at the bottom of the U-shaped mounting bracket. A first middle block is fixedly provided at the bottom end of the middle rod. A second middle block is fixedly provided at the bottom of the first middle block and is fixedly engaged with the top of the fixing ring.

[0007] Preferably, the limiting mechanism includes two symmetrically fixed sixth fixing blocks at the top center of the base plate. A bidirectional screw is rotatably provided between the two sixth fixing blocks. A sixth motor is fixedly installed on one side of one of the sixth fixing blocks. The output end of the sixth motor passes through one of the sixth fixing blocks and is fixedly engaged with one end of the bidirectional screw. The surface of the bidirectional screw is symmetrically threaded with two movable blocks that slide in cooperation with the surface of the base plate. A U-shaped stabilizing frame is fixedly provided on the top of the movable blocks. A seventh motor is fixedly installed on the inner wall of the U-shaped stabilizing frame. A fifth spur gear is fitted through the U-shaped stabilizing frame at the output end of the seventh motor. A rotating column is rotatably provided on the top of the U-shaped stabilizing frame. A second external gear ring that meshes with one side of the fifth spur gear is fitted on the surface of the rotating column. A connecting block is fixedly provided on the top of the rotating column. A fixing column is fixedly provided on one side of the connecting block. A limiting groove is opened at one end of the fixing column. A cylinder is fixedly installed at the bottom of the limiting groove. A sliding sleeve that slides in cooperation with the surface of the fixing column is fixedly provided at the output end of the cylinder. A first mounting strip is fixedly provided on the surface of the sliding sleeve. A second mounting strip is hinged to the first mounting strip through multiple movable strips. A clamping block is fixedly provided on the top of the second mounting strip.

[0008] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention, by setting up a detection mechanism, enables the detection mechanism to work and perform a uniform application of sound-conducting liquid to the surface of boiler pressure pipes, saving time and effort, reducing workload, and improving detection efficiency; by setting up a driving mechanism, the driving mechanism can adapt to various shapes of boiler pressure pipes, further improving ultrasonic detection efficiency. 2. This invention utilizes a second spur gear to drive the first external gear ring to rotate, which in turn drives the V-shaped mounting plate to move, which in turn drives the coating roller and ultrasonic probe to move until the ultrasonic probe contacts the surface of the boiler pressure pipe. Then, the third rotating shaft rotates to drive the first bevel gear to rotate, which in turn drives the coating roller to rotate, so that the coating roller can apply the sound-conducting liquid to the surface of the boiler pressure pipe. The first rotating shaft rotates to drive the first spur gear to rotate, which in turn drives the coating roller to rotate along the outer surface of the boiler pressure pipe, thereby achieving uniform coating on the surface of the boiler pressure pipe. 3. This invention utilizes the rotation of the fourth rotating shaft to drive the rotation of the fifth rotating shaft, which in turn drives the rotation of the third spur gear. This causes the third spur gear to roll along the side of the first rack, thereby causing the coating roller and ultrasonic probe to move left and right in the horizontal direction. Then, the rotation of the fourth spur gear causes it to roll along the side of the second rack, which in turn causes the coating roller and ultrasonic probe to move back and forth in the horizontal direction. This enables automatic ultrasonic testing of boiler pressure pipes of different shapes. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a first-view structural diagram of the entire invention.

[0011] Figure 2 This is a second-view structural diagram of the entire invention.

[0012] Figure 3 This is a cross-sectional view of the overall structure of the present invention.

[0013] Figure 4 This is a first-view structural schematic diagram of the detection mechanism of the present invention.

[0014] Figure 5 This is a second-view structural schematic diagram of the detection mechanism of the present invention.

[0015] Figure 6This is a schematic diagram of the connection structure of the V-shaped mounting plate, the third motor, and the third rotating shaft of the present invention.

[0016] Figure 7 This is a schematic diagram of the connection structure between the second slider, the second connecting strip, and the first external toothed ring of the present invention.

[0017] Figure 8 This is a schematic diagram of the drive mechanism structure of the present invention.

[0018] Figure 9 This is a schematic diagram of the connection structure between the fixing plate and the slide rail of the present invention.

[0019] Figure 10 This is a schematic diagram of the limiting mechanism structure of the present invention.

[0020] Figure 11 For the present invention Figure 3 A magnified schematic diagram of a portion of structure A.

[0021] Figure 12 For the present invention Figure 3 A magnified schematic diagram of a portion of B.

[0022] In the diagram: 1. Base plate; 2. Support plate; 3. Top plate; 4. Detection mechanism; 401. Fixed ring; 402. First rotating ring; 403. First fixed block; 404. First motor; 405. First rotating shaft; 406. First spur gear; 407. Internal gear ring; 408. Second rotating ring; 409. First slider; 410. First connecting bar; 411. Second slider; 412. Second connecting bar; 413. Second motor; 414. Second spur gear; 415. First external... 416. Gear ring; 417. U-shaped mounting block; 418. V-shaped mounting plate; 419. Second fixing block; 420. Third fixing block; 421. Application roller; 422. Second rotating shaft; 423. First bevel gear; 424. Third motor; 425. Third rotating shaft; 426. Fixing rod; 427. Top block; 428. Liquid storage tank; 429. Spray nozzle; 430. Straight plate; 431. Mounting frame; 432. Ultrasonic probe; 501. Drive mechanism; 502. Fixing plate; 503. First gear 503. Slide rail; 504. Moving plate; 505. Fourth fixed block; 506. Fourth motor; 507. Fifth fixed block; 508. Fourth rotating shaft; 509. Second bevel gear; 510. Fifth rotating shaft; 511. Third spur gear; 512. Fixed strip; 513. Roller; 514. Moving block; 515. Fifth motor; 516. Fourth spur gear; 517. Second rack; 518. U-shaped mounting bracket; 519. Intermediate rod; 520. First intermediate block; 5 21. Second intermediate block; 6. Limiting mechanism; 601. Sixth fixed block; 602. Bidirectional screw; 603. Sixth motor; 604. Movable block; 605. U-shaped stabilizing frame; 606. Seventh motor; 607. Fifth spur gear; 608. Rotating column; 609. Second external gear ring; 610. Connecting block; 611. Fixed column; 612. Cylinder; 613. Sliding sleeve; 614. First mounting strip; 615. Movable strip; 616. Second mounting strip; 617. Clamping block. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Example: Figure 1-12 As shown, the present invention provides a boiler pressure pipeline detection device, including a base plate 1, and a top plate 3 fixedly mounted on the top outer ring of the base plate 1 by a plurality of support plates 2. A detection mechanism 4 for surface inspection of boiler pressure pipelines is provided between the top plate 3 and the bottom plate 1. The detection mechanism 4 also includes a first rotating ring 402 that rotatably engages with one side of the fixed ring 401. A first fixing block 403 is fixedly provided on the inner wall of the fixed ring 401. A first motor 404 is fixedly installed on one side of the first fixing block 403. A first rotating shaft 405 is fixedly provided through the first fixing block 403 at the output end of the first motor 404. A first spur gear 406 is fitted on the surface of the first rotating shaft 405. An internal gear ring 407 that is fixedly engaged with the inner wall of the first rotating ring 402 is meshed on the outer wall of the first spur gear 406. A second rotating ring 408 is fixedly provided on one side of the internal gear ring 407. Two first sliding grooves are symmetrically provided at the top and bottom ends of one side of the second rotating ring 408. A first slider 409 is slidably mounted on a slide groove. A first connecting strip 410 is fixedly mounted on one side of the first slider 409. Multiple second slide grooves are symmetrically opened at both ends of one side of the second rotating ring 408. A second slider 411 is slidably mounted on the second slide groove. A second connecting strip 412 is fixedly mounted on one side of the second slider 411, allowing the rotation of the first rotating shaft 405 to drive the internal gear ring 407 to rotate. A second motor 413 is fixedly mounted on the outer wall of the first rotating ring 402. A second spur gear 414 is fitted onto the output end of the second motor 413. A first external gear ring 415 meshes with one end of the second connecting strip 412 on one side of the second spur gear 414. A through hole is opened on one side of the first external gear ring 415 to slide with the first connecting strip 410, allowing the rotation of the second spur gear 414 to drive the internal gear ring 407 to rotate. The first connecting bar 410 is equipped with a U-shaped mounting block 416 that slides on the surface of the first external gear ring 415. A V-shaped mounting plate 417 is fixed to the inner wall of the U-shaped mounting block 416. A second fixing block 418 and two third fixing blocks 419 are fixed to both sides of the inner wall of the V-shaped mounting plate 417. An applicator roller 420 is rotatably mounted between the two third fixing blocks 419. A second rotating shaft 421 is fixed to one end of the applicator roller 420. One end of the second rotating shaft 421 passes through the third fixing blocks 419 and the second fixing blocks 418 and is fitted with a first bevel gear 422. The two first bevel gears 422 mesh with each other. A third motor 423 is fixedly mounted to one end of the outer wall of the V-shaped mounting plate 417. The output end of the third motor 423... A third rotating shaft 424, which is fixedly fitted to one of the second rotating shafts 421, passes through the V-shaped mounting plate 417. Rotation of the third rotating shaft 424 drives the applicator roller 420 to rotate. A fixing rod 425 is fixedly mounted on one side of the U-shaped mounting block 416. A top block 426 is fixedly mounted on the surface of the fixing rod 425. A liquid storage tank 427 is fixedly mounted at the bottom of the top block 426. A liquid guide pipe is connected to the bottom of the liquid storage tank 427. Mounting holes are opened at the other ends of both sides of the outer wall of the V-shaped mounting plate 417. A nozzle 428, positioned opposite the applicator roller 420, is fixedly mounted in the mounting holes. An external hose and a water pump (not shown in the figure, representing prior art) are connected. The hose connects the liquid guide pipe, the water pump, and the nozzle 428. The water pump pumps the liquid guide from the liquid storage tank 427 into the nozzle 428.The liquid is sprayed onto the surface of the boiler pipes via nozzle 428 for further coating. The nozzle 428 sprays the sound-guiding liquid. A straight plate 429 is fixed to one end of a fixing rod 425, and a mounting frame 430 is fixed to one side of the straight plate 429. An ultrasonic probe 431 is installed inside the mounting frame 430, enabling the ultrasonic probe 431 to perform ultrasonic testing on the surface of the boiler pressure pipes. The detection mechanism 4 includes a fixed ring 401. The top of the fixed ring 401 is connected to a drive mechanism 5 for moving the detection mechanism 4, which is located at the bottom of the top plate 3. The drive mechanism 5 includes a pair of fixed plates 501 that are fixedly engaged with the bottom of the top plate 3. A first rack 502 is fixedly mounted on one side of the fixed plate 501. A slide rail 503 is fixedly mounted on the bottom of the fixed plate 501. A third slider is slidably mounted on the surface of the slide rail 503. A moving plate 504 is fixedly mounted on the bottom of the third slider. A fourth fixed block 505 is fixedly mounted on one end of one side of the moving plate 504. A fourth motor 506 is fixedly mounted on one side of the fourth fixed block 505. Two fifth fixed blocks 507 are fixedly mounted on the other end of the bottom of the moving plate 504. A fourth rotating shaft 508 is rotatably mounted between the two fifth fixed blocks 507. One end of the fourth rotating shaft 508 passes through one of the fifth fixed blocks 507 and is fixedly engaged with the output end of the fourth motor 506. The fourth rotating shaft 508 drives a fifth rotating shaft 510 through two meshing second bevel gears 509. The top end of the fifth rotating shaft 510 passes through the moving plate 504 and is fitted with a... A third spur gear 511 meshes with one side of the first rack 502, enabling the rotation of the fourth rotating shaft 508 to drive the rotation of the fifth rotating shaft 510. Two fixing bars 512 are fixedly provided on the other side of the bottom of the movable plate 504. A third sliding groove is provided on one side of the fixing bar 512, and a roller 513 is rolled in the third sliding groove. A movable block 514 is rotatably provided at the bottom of the roller 513. A fifth motor 515 is fixedly installed at the center of the bottom of the movable block 514. The output end of the fifth motor 515 passes through the movable block 514 and is fitted with a fourth spur gear 516. The fourth spur gear 516 is meshed with a second rack 517 on one side, which is fixedly engaged with one of the fixed bars 512 on the other side. The bottom outer ring of the moving block 514 is fixedly provided with a U-shaped mounting bracket 518. The bottom of the U-shaped mounting bracket 518 is fixedly provided with a middle rod 519. The bottom end of the middle rod 519 is fixedly provided with a first middle block 520. The bottom of the first middle block 520 is fixedly provided with a second middle block 521, which is fixedly engaged with the top of the fixed ring 401, so that the fourth spur gear 516 can rotate and roll along the side of the second rack 517. Below the fixing ring 401 is a limiting mechanism 6 connected to the top center of the base plate 1 for clamping and fixing the boiler pressure pipeline. The limiting mechanism 6 includes two symmetrically fixed sixth fixing blocks 601 fixed at the top center of the base plate 1. A bidirectional screw 602 is rotatably provided between the two sixth fixing blocks 601. A sixth motor 603 is fixedly installed on one side of one of the sixth fixing blocks 601. The output end of the sixth motor 603 passes through one of the sixth fixing blocks 601 and is fixedly engaged with one end of the bidirectional screw 602. The surface of the bidirectional screw 602 is symmetrically threaded with two movable blocks 604 that slide in engagement with the surface of the base plate 1. A U-shaped stabilizing frame 605 is fixedly installed on the top of the movable blocks 604. A seventh motor 606 is fixedly installed on the inner wall of the U-shaped stabilizing frame 605. The output end of the seventh motor 606 passes through the U-shaped stabilizing frame 605 and is fitted with a fifth spur gear 607. The top of the U-shaped stabilizing frame 605 is equipped with a rotating column 608. The surface of the rotating column 608 is fitted with a second external gear ring 609 that meshes with one side of the fifth spur gear 607, so that the rotation of the bidirectional screw 602 can drive the movable block 604 to move. The top of the rotating column 608 is fixedly equipped with a connecting block 610, and a fixed column 611 is fixedly equipped on one side of the connecting block 610. One end of the fixed column 611 is provided with a limit groove, and a cylinder 612 is fixedly installed at the bottom of the limit groove. The output end of the cylinder 612 is fixedly equipped with a sliding sleeve 613 that slides with the surface of the fixed column 611. The surface of the sliding sleeve 613 is fixedly equipped with a first mounting strip 614. The first mounting strip 614 is hinged to a second mounting strip 616 through multiple movable strips 615. The top of the second mounting strip 616 is fixedly equipped with a clamping block 617, so that the extension or retraction of the cylinder 612 can drive the clamping block 617 to move.

[0025] Working principle: When ultrasonic testing is required on the surface of a boiler pressure pipeline, firstly, adjust the distance between the two movable blocks 604 according to the length of the boiler pressure pipeline. Then, start the sixth motor 603 to rotate, which drives the bidirectional screw 602 to rotate, thereby causing the two movable blocks 604 to move away from or towards each other to adapt to the length of the boiler pressure pipeline. Secondly, adjust the orientation of the clamping block 617 according to whether the boiler pressure pipeline is a bend. Then, start the seventh motor 606 to rotate, which drives the fifth spur gear 607 to rotate, thereby driving the second external gear ring 609 and the rotating column 608 to rotate. This causes the connecting block 610, the fixed column 611, and the clamping block 617 to rotate within a certain angle. Next, it is necessary to clamp and limit the boiler pressure pipeline. The boiler pressure pipeline is passed through the fixed ring 401 and the first external toothed ring 415. Then, the sixth motor 603 is started to drive the transmission, which drives the two movable blocks 604 to move closer to each other, so that the clamping block 617 is inserted into both ends of the boiler pressure pipeline. The cylinder 612 is started to shorten it, which drives the sliding sleeve 613 to slide along the surface of the fixed column 611, thereby driving the movable bar 615 to rotate, which in turn drives the clamping block 617 to expand, thereby achieving the clamping and limiting of the boiler pressure pipeline. When ultrasonic testing is required on the surface of a boiler pressure pipe, the testing mechanism 4 is positioned at one end of the boiler pressure pipe near the sixth motor 603. First, depending on the thickness of the boiler pressure pipe, the distance between the applicator roller 420 and the ultrasonic probe 431 and the pipe needs to be adjusted. The second motor 413 is then started to rotate at a set angle, causing the second spur gear 414 to rotate, which in turn causes the first external gear ring 415 to rotate, which in turn causes the first connecting strip 410 to move, which in turn causes the first slider 409 to slide along the first groove, which in turn causes the U-shaped mounting block 416 and the V-shaped mounting plate 417 to move towards the boiler pressure pipe, and further causes the applicator roller 420 and the ultrasonic probe 431 to move towards the boiler pressure pipe until the ultrasonic probe 431 contacts the surface of the boiler pressure pipe. At this point, the applicator roller 420 has contacted the surface of the boiler pressure pipe. When the pipes come into contact, the external water pump is started, pumping the sound-guiding liquid in the storage tank 427 into the nozzle 428. The liquid is then sprayed onto the surface of the boiler pipes through the nozzle 428. The third motor 423 is started to rotate, causing the third rotating shaft 424 to rotate. This, in turn, causes the first bevel gear 422 to rotate around the second rotating shaft 421, which in turn causes the second rotating shaft 421 to rotate. This causes the applicator roller 420 to rotate around the second rotating shaft 421, allowing the applicator roller 420 to apply the sound-guiding liquid to the surface of the boiler pressure pipes. The first motor 404 is started to rotate, causing the first rotating shaft 405 to rotate. This, in turn, causes the first spur gear 406 to rotate around the first rotating shaft 405, which in turn causes the internal gear ring 407 and the first rotating ring 402 to rotate. This causes the applicator roller 420 to rotate along the outer surface of the boiler pressure pipes while rotating, thus achieving uniform application of the liquid to the surface of the boiler pressure pipes. The fourth motor 506 is started to rotate, causing the fourth shaft 508 to rotate. Through the transmission of the second bevel gear 509, the fifth shaft 510 rotates, which in turn causes the third spur gear 511 to rotate around the fifth shaft 510. This causes the third spur gear 511 to roll along the side of the first rack 502, which in turn causes the coating roller 420 and the ultrasonic probe 431 to move left and right in the horizontal direction. The fifth motor 515 is started to rotate, causing the fourth spur gear 516 to rotate. This causes the fourth spur gear 516 to roll along the side of the second rack 517, which in turn causes the coating roller 420 and the ultrasonic probe 431 to move back and forth in the horizontal direction. This allows the coating roller 420 and the ultrasonic probe 431 to adapt to straight pipes and various bends, thereby realizing the automatic ultrasonic detection operation of boiler pressure pipes of different shapes.

[0026] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A boiler pressure pipeline testing device, comprising a base plate (1), wherein a top plate (3) is fixedly mounted on the outer top ring of the base plate (1) by a plurality of support plates (2), characterized in that: A detection mechanism (4) for surface inspection of boiler pressure pipeline is provided between the top plate (3) and the bottom plate (1). The detection mechanism (4) includes a fixing ring (401). The top of the fixing ring (401) is connected to a driving mechanism (5) for moving the detection mechanism (4) provided at the bottom of the top plate (3). A limiting mechanism (6) for clamping and fixing the boiler pressure pipeline is provided below the fixing ring (401) and connected to the center of the top of the bottom plate (1). The detection mechanism (4) further includes a first rotating ring (402) that rotatably engages with one side of the fixed ring (401). A first fixing block (403) is fixedly provided on the inner wall of the fixed ring (401). A first motor (404) is fixedly installed on one side of the first fixing block (403). A first rotating shaft (405) is fixedly provided through the first fixing block (403) at the output end of the first motor (404). A first spur gear (406) is fitted on the surface of the first rotating shaft (405). The outer wall of the first spur gear (406) meshes with the inner wall of the first rotating ring (402). A fixed-fit internal gear ring (407) is provided with a second rotating ring (408) fixed on one side. Two first sliding grooves are symmetrically opened at the top and bottom of one side of the second rotating ring (408). A first slider (409) is slidably provided in the first sliding groove. A first connecting strip (410) is fixedly provided on one side of the first slider (409). Multiple second sliding grooves are symmetrically opened at both ends of one side of the second rotating ring (408). A second slider (411) is slidably provided in the second sliding groove. A second connecting strip (412) is fixedly provided on one side of the second slider (411). A second motor (413) is fixedly installed on the outer wall of the first rotating ring (402). A second spur gear (414) is fitted on the output end of the second motor (413). A first external toothed ring (415) is meshed on one side of the second spur gear (414) and is fixedly engaged with one end of the second connecting bar (412). A through hole is opened on one side of the first external toothed ring (415) to slide with the first connecting bar (410). One end of the first connecting strip (410) is fixedly provided with a U-shaped mounting block (416) that slides with the surface of the first external toothed ring (415). A V-shaped mounting plate (417) is fixedly provided on the inner wall of the U-shaped mounting block (416). A second fixing block (418) and two third fixing blocks (419) are fixedly provided on both sides of the inner wall of the V-shaped mounting plate (417). An applicator roller (420) is rotatably provided between the two third fixing blocks (419). A second rotating part is fixedly provided at one end of the applicator roller (420). The shaft (421) has one end passing through the third fixing block (419) and the second fixing block (418) and fitted with a first bevel gear (422), and the two first bevel gears (422) mesh with each other. A third motor (423) is fixedly installed on one end of the outer wall of the V-shaped mounting plate (417). The output end of the third motor (423) passes through the V-shaped mounting plate (417) and is fixedly provided with a third shaft (424) that is fixedly engaged with one of the second shafts (421). A fixing rod (425) is fixedly installed on one side of the U-shaped mounting block (416). A top block (426) is fixedly provided on the surface of the fixing rod (425). A liquid storage tank (427) is fixedly provided at the bottom of the top block (426). A liquid guide pipe is connected to the bottom of the liquid storage tank (427). An installation hole is opened at the other end of both sides of the outer wall of the V-shaped mounting plate (417). A nozzle (428) is fixedly provided in the installation hole and is opposite to the applicator roller (420). One end of the fixing rod (425) is fixedly provided with a straight plate (429), and a mounting frame (430) is fixedly provided on one side of the straight plate (429). An ultrasonic probe (431) is installed inside the mounting frame (430).

2. The boiler pressure pipeline detection device as described in claim 1, characterized in that, The drive mechanism (5) includes a pair of fixed plates (501) that are fixedly engaged with the bottom of the top plate (3). A first rack (502) is fixedly provided on one side of the fixed plate (501). A slide rail (503) is fixedly provided on the bottom of the fixed plate (501). A third slider is slidably provided on the surface of the slide rail (503). A moving plate (504) is fixedly provided at the bottom of the third slider. A fourth fixed block (505) is fixedly provided at one end of one side of the moving plate (504). A fourth motor (506) is fixedly installed on one side of the fourth fixed block (505). The bottom of the moving plate (504) is... Two fifth fixing blocks (507) are fixedly provided on one side of the part and the other end is fixedly provided. A fourth rotating shaft (508) is rotatably provided between the two fifth fixing blocks (507). One end of the fourth rotating shaft (508) passes through one of the fifth fixing blocks (507) and is fixedly engaged with the output end of the fourth motor (506). The fourth rotating shaft (508) is driven by two meshing second bevel gears (509) to provide a fifth rotating shaft (510). The top end of the fifth rotating shaft (510) passes through the moving plate (504) and is fitted with a third spur gear (511) that meshes with one side of the first rack (502).

3. The boiler pressure pipeline detection device as described in claim 2, characterized in that, Two fixing strips (512) are fixedly provided on the other side of the bottom of the movable plate (504). A third sliding groove is provided on one side of the fixing strip (512). A roller (513) is rolled on the third sliding groove. A movable block (514) is rotatably provided at the bottom of the roller (513). A fifth motor (515) is fixedly installed at the center of the bottom of the movable block (514). A fourth spur gear (516) is fitted through the output end of the fifth motor (515) through the movable block (514). A second rack (517) is meshed on one side of the fourth spur gear (516) and fixedly engaged with the other side of one of the fixing strips (512). A U-shaped mounting bracket (518) is fixedly provided on the outer ring of the bottom of the movable block (514). A middle rod (519) is fixedly provided at the bottom of the U-shaped mounting bracket (518). A first middle block (520) is fixedly provided at the bottom end of the middle rod (519). A second middle block (521) is fixedly engaged with the top of the fixing ring (401) at the bottom of the first middle block (520).

4. The boiler pressure pipeline detection device as described in claim 1, characterized in that, The limiting mechanism (6) includes two symmetrically fixed sixth fixing blocks (601) at the top center of the base plate (1). A bidirectional screw (602) is rotatably provided between the two sixth fixing blocks (601). A sixth motor (603) is fixedly installed on one side of one of the sixth fixing blocks (601). The output end of the sixth motor (603) passes through one of the sixth fixing blocks (601) and is fixedly engaged with one end of the bidirectional screw (602). The surface of the bidirectional screw (602) is symmetrically threaded with two threads that interact with the surface of the base plate (1). A sliding contact block (604) is provided with a U-shaped stabilizing frame (605) fixedly mounted on the top of the sliding contact block (604). A seventh motor (606) is fixedly mounted on the inner wall of the U-shaped stabilizing frame (605). A fifth spur gear (607) is fitted through the output end of the seventh motor (606) through the U-shaped stabilizing frame (605). A rotating column (608) is rotatably mounted on the top of the U-shaped stabilizing frame (605). A second external gear ring (609) that meshes with one side of the fifth spur gear (607) is fitted on the surface of the rotating column (608).

5. A boiler pressure pipeline testing device as described in claim 4, characterized in that, A connecting block (610) is fixedly provided on the top of the rotating column (608). A fixing column (611) is fixedly provided on one side of the connecting block (610). A limiting groove is opened at one end of the fixing column (611). A cylinder (612) is fixedly installed at the bottom of the limiting groove. A sliding sleeve (613) that slides with the surface of the fixing column (611) is fixedly provided at the output end of the cylinder (612). A first mounting strip (614) is fixedly provided on the surface of the sliding sleeve (613). A second mounting strip (616) is hinged to the first mounting strip (614) through multiple movable strips (615). A clamping block (617) is fixedly provided on the top of the second mounting strip (616).

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