阅读说明：本技术 一种用于压力容器焊缝的无损检测装置 (Nondestructive testing device for welding seam of pressure vessel ) 是由 李梁 王福贵 秦承鹏 李东江 王强 王亮 陈征 蔡晖 王鹏 邱张维佳 赵仑 于 2021-09-15 设计创作，主要内容包括：本发明公开了一种用于压力容器焊缝的无损检测装置,属于压力容器检测技术领域,包括压力容器、支撑板、夹紧装置、外部固定装置、检测装置和卡紧装置,所述压力容器的外壁设置有支撑板,所述支撑板的顶部安装有夹紧装置,且支撑板的底部安装有外部固定装置,所述外部固定装置上设置有检测装置,所述检测装置的外壁上安装有卡紧装置,本发明通过设置的外部固定装置能够平稳的使检测装置做圆周运动,进而实现对压力容器外表面进行360度的无损伤检测。(The invention discloses a nondestructive testing device for a welding line of a pressure container, which belongs to the technical field of pressure container testing and comprises the pressure container, a supporting plate, a clamping device, an external fixing device, a testing device and a clamping device, wherein the supporting plate is arranged on the outer wall of the pressure container, the clamping device is arranged at the top of the supporting plate, the external fixing device is arranged at the bottom of the supporting plate, the testing device is arranged on the external fixing device, and the clamping device is arranged on the outer wall of the testing device.)

1. The nondestructive testing device for the welding seam of the pressure vessel is characterized in that a supporting plate (2) is arranged on the outer wall of the pressure vessel (1), a clamping device (3) is installed at the top of the supporting plate (2), an external fixing device (4) is installed at the bottom of the supporting plate (2), a testing device (5) is arranged on the external fixing device (4), and a clamping device (6) is installed on the outer wall of the testing device (5);

the detection device (5) comprises a support plate (501) arranged on the external fixing device (4), a spraying device (504) used for spraying fluorescent dye or coloring dye during detection is installed at the top of the support plate (501), a developer coating device (505) used for coating developer is also installed at the top of the support plate (501), and the movement track of the support plate (501) takes the pressure container (1) as an axis to do circular motion.

2. The non-destructive testing device for the weld of a pressure vessel according to claim 1, characterized in that: the clamping device (3) comprises a first motor (301) arranged at the top of a supporting plate (2), a first gear (302) is arranged at the output end of the first motor (301), a second gear (303) and a third gear (304) are symmetrically arranged at two ends of the top of the supporting plate (2), a first connecting rod (306) and a second connecting rod (309) are respectively arranged on the outer walls of two sides of an external fixing device (4) in a sliding mode, a first rack (305) is arranged at one end of the first connecting rod (306), a second rack (308) is arranged at one end of the second connecting rod (309), a first clamping block (307) is hinged to the other end of the first rack (305), and a second clamping block (310) is hinged to the other end of the second rack (308);

the first gear 302 meshes with the second gear 303, the second gear 303 meshes with the second rack 308, and the third gear 304 meshes with the first rack 305.

3. The non-destructive testing device for the weld of a pressure vessel according to claim 1, characterized in that: a second motor (401) is installed at the bottom of the supporting plate (2), a fourth gear (402) is installed at the output end of the second motor (401), a first semicircular plate (405) and a second semicircular plate (406) are respectively installed at the bottom of the supporting plate (2) in a symmetrical and rotating mode, a sixth gear (404) is installed at the bottom of the first semicircular plate (405), and a fifth gear (403) is installed at the bottom of the second semicircular plate (406);

the fourth gear 402 meshes with the fifth gear 403, the fifth gear 403 meshes with the sixth gear 404, and the fifth gear 403 meshes with the sixth gear 404.

4. The non-destructive testing device for the weld of a pressure vessel according to claim 3, characterized in that: the detection device (5) comprises a support plate (501) arranged on an external fixing device (4), a third motor (502) is installed at the top of the support plate (501), a seventh gear (503) is installed at the output end of the third motor (502), an electric push rod (506) is installed at the top of the support plate (501), a cleaning block (507) is arranged at the output end of the electric push rod (506), and a smearing device (505) is installed at the top of the support plate (501).

5. The non-destructive testing device for the weld of a pressure vessel according to claim 3, characterized in that: a first fixed block (601) and a second fixed block (606) are respectively mounted on the outer wall of the first semicircular plate (405), a first rotating rod (602) is rotatably mounted at the top of the first fixed block (601), an eighth gear (603) is mounted at the bottom of the outer surface of the first rotating rod (602), a first spring (604) is sleeved at the top of the outer surface of the first rotating rod (602), and a first shifting rod (605) is mounted at the top of the first rotating rod (602);

the top of second fixed block (606) is rotated and is installed second dwang (607), ninth gear (608) are installed to the bottom of second dwang (607) surface, second spring (609) have been cup jointed at the top of second dwang (607) surface, second driving lever (610) are installed at the top of second dwang (607), and ninth gear 608 and eighth gear 603 mesh mutually.

6. The non-destructive testing device for the weld of a pressure vessel according to claim 4, wherein: and teeth meshed with the seventh gear (503) are arranged on the inner surfaces of the first semicircular plate (405) and the second semicircular plate (406).

7. The non-destructive testing device for the weld of a pressure vessel according to claim 3, characterized in that: the outer walls of the first semicircular plate (405) and the second semicircular plate (406) are respectively provided with a limiting block, and the limiting blocks are provided with sliding holes which are matched with the first connecting rod (306) and the second connecting rod (309) in size and correspond to the positions of the sliding holes.

8. The non-destructive testing device for the weld of a pressure vessel according to claim 4, wherein: the bottom of the support plate (501) is provided with a sliding block, and the tops of the first semicircular plate (405) and the second semicircular plate (406) are provided with sliding grooves which are matched with the size of the upper sliding block of the support plate (501) and correspond to the positions of the upper sliding block.

Technical Field

The invention relates to the technical field of pressure vessel detection, in particular to a nondestructive detection device for a pressure vessel welding line.

Background

The nondestructive detection is a general name of all technical means for detecting whether a detected object has defects or non-uniformity by using the characteristics of sound, light, magnetism, electricity and the like on the premise of not damaging or influencing the use performance of the detected object, giving information such as the size, position, property, quantity and the like of the defects and further judging the technical state (such as qualification, residual life and the like) of the detected object, and a patent with the application number of CN201822059595.4 discloses an X-ray DR imaging detection system for detecting the annular straight welding seam of a pressure container, which comprises a gantry positioner, a detection conveying line arranged below the gantry positioner and used for conveying the pressure container, an overturning adjustable supporting wheel frame arranged on a conveying line detection section of the detection conveying line and used for supporting the pressure container to leave the detection conveying line to overturn, an X-ray machine arranged on an operating surface of the gantry positioner and an imaging plate, The ray machine and the imaging plate can be driven to carry out lifting movement, pitching movement, focal length movement adjustment in a front-back mode and left-right transverse movement, and the ray machine and the imaging plate are connected with a multi-view-angle multifunctional monitoring device and a control film evaluation device. The device has the advantages that the imaging quality is improved, the detection efficiency is improved, and the labor force is reduced; the double-wall single-image digital dynamic and static online detection method has the advantages that the double-wall single-image digital dynamic and static online detection of the quality of the circular straight weld of the pressure steel cylinder with the diameter of 0.5-1.2 m or less is realized, and the automatic detection of various pressure containers cannot be realized, so that the problems need to be solved.

Disclosure of Invention

Aiming at the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides a nondestructive test device for pressure vessel welding seam, pressure vessel's outer wall is provided with the backup pad, clamping device is installed at the top of backup pad, and the bottom of backup pad installs outside fixing device, be provided with detection device on the outside fixing device, install chucking device on detection device's the outer wall.

The detection device comprises a support plate arranged on an external fixing device, a spraying device used for spraying fluorescent dye or coloring dye during detection is installed at the top of the support plate, a developer coating device used for coating developer is further installed at the top of the support plate, and the support plate moves circularly by taking the pressure container as an axis.

Furthermore, the clamping device comprises a first motor arranged at the top of the supporting plate, a first gear is arranged at the output end of the first motor, a second gear and a third gear are symmetrically arranged at two ends of the top of the supporting plate, a first connecting rod and a second connecting rod are respectively arranged on the outer walls of two sides of the external fixing device in a sliding manner, a first rack is arranged at one end of the first connecting rod, a second rack is arranged at one end of the second connecting rod, a first clamping block is hinged to the other end of the first rack, and a second clamping block is hinged to the other end of the second rack;

the first gear is meshed with the second gear, the second gear is meshed with the second rack, and the third gear is meshed with the first rack.

Further, a second motor is installed at the bottom of the supporting plate, a fourth gear is installed at the output end of the second motor, a first semicircular plate and a second semicircular plate are symmetrically and rotatably installed at the bottom of the supporting plate respectively, a sixth gear is installed at the bottom of the first semicircular plate, and a fifth gear is installed at the bottom of the second semicircular plate;

the fourth gear is meshed with the fifth gear, the fifth gear is meshed with the sixth gear, and the fifth gear is meshed with the sixth gear.

Furthermore, the detection device comprises a support plate arranged on an external fixing device, a third motor is mounted at the top of the support plate, a seventh gear is mounted at the output end of the third motor, an electric push rod is mounted at the top of the support plate, a cleaning block is arranged at the output end of the electric push rod, and a smearing device is mounted at the top of the support plate.

Further, install first fixed block and second fixed block on the outer wall of first semicircle board respectively, the top of first fixed block is rotated and is installed first rotation pole, eighth gear is installed to the bottom of first rotation pole surface, first spring has been cup jointed at the top of first rotation pole surface, first driving lever is installed at the top of first rotation pole.

The top of second fixed block is rotated and is installed the second dwang, the ninth gear is installed to the bottom of second dwang surface, the second spring has been cup jointed at the top of second dwang surface, the second driving lever is installed at the top of second dwang, and ninth gear and eighth gear mesh mutually.

Furthermore, teeth meshed with the seventh gear are arranged on the inner surfaces of the first semicircular plate and the second semicircular plate.

Furthermore, the outer walls of the first semicircular plate and the second semicircular plate are both provided with limiting blocks, and the limiting blocks are provided with sliding holes which are matched with the first connecting rod and the second connecting rod in size and correspond to the positions of the first connecting rod and the second connecting rod.

Furthermore, the bottom of the support plate is provided with a slide block, and the tops of the first semicircular plate and the second semicircular plate are provided with sliding grooves which are matched with the sizes of the upper slide blocks of the support plate and correspond to the positions of the upper slide blocks.

Compared with the prior art, the invention has the beneficial effects that: (1) the invention adopts mechanical design, and can carry out nondestructive detection on pressure containers with different sizes; (2) the detection device can stably make circular motion through the arranged external fixing device, so that 360-degree nondestructive detection on the outer surface of the pressure container is realized; (3) the invention can realize non-contact automatic detection, greatly improves the safety of equipment and reduces the labor intensity of workers.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural view of the clamping device of the present invention.

FIG. 3 is a schematic view of an external fixing device according to the present invention.

Fig. 4 is a schematic view showing a coupling structure of the clamping means and the external fixing means according to the present invention.

FIG. 5 is a schematic structural diagram of the detecting device of the present invention.

FIG. 6 is an enlarged view of the structure at A in FIG. 5 according to the present invention.

In the figure: 1. a pressure vessel; 2. a support plate; 3. a clamping device; 4. an external fixation device; 5. a detection device; 6. a clamping device; 301. a first motor; 302. a first gear; 303. a second gear; 304. a third gear; 305. a first rack; 306. a first link; 307. a first clamping block; 308. a second rack; 309. a second link; 310. a second clamp block; 401. a second motor; 402. a fourth gear; 403. a fifth gear; 404. a sixth gear; 405. a first semi-circular plate; 406. a second semicircular plate; 501. a support plate; 502. a third motor; 503. a seventh gear; 504. a spraying device; 505. a painting device; 506. an electric push rod; 507. a cleaning block; 601. a first fixed block; 602. a first rotating lever; 603. an eighth gear; 604. a first spring; 605. a first shift lever; 606. a second fixed block; 607. a second rotating lever; 608. a ninth gear; 609. a second spring; 610. and a second deflector rod.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example (b): the nondestructive testing device for the welding seam of the pressure vessel is characterized in that a supporting plate 2 is arranged on the outer wall of the pressure vessel 1, a clamping device 3 is installed at the top of the supporting plate 2, an external fixing device 4 is installed at the bottom of the supporting plate 2, a detection device 5 is arranged on the external fixing device 4, and a clamping device 6 is installed on the outer wall of the detection device 5.

The detection device 5 comprises a support plate 501 arranged on the external fixing device 4, a spraying device 504 for spraying fluorescent dye or coloring dye during detection is arranged on the top of the support plate 501, a developer coating device 505 for coating developer is further arranged on the top of the support plate 501, and the movement track of the support plate 501 is circular motion by taking the pressure container 1 as an axis.

Through starting detection device 5, and then realize that detection device 5 uses pressure vessel 1 to do circular motion as the axis, and then detect the welding seam on the pressure vessel 1, at the in-process that detects, press from both sides tightly it through clamping device 3, and is further, can also detect the pressure vessel 1 of not unidimensional.

The clamping device 3 comprises a first motor 301 arranged at the top of a supporting plate 2, a first gear 302 is arranged at the output end of the first motor 301, a second gear 303 and a third gear 304 are symmetrically arranged at two ends of the top of the supporting plate 2, a first connecting rod 306 and a second connecting rod 309 are respectively arranged on the outer walls of two sides of an external fixing device 4 in a sliding manner, a first rack 305 is arranged at one end of the first connecting rod 306, a second rack 308 is arranged at one end of the second connecting rod 309, the other end of the first rack 305 is hinged to a first clamping block 307, the other end of the second rack 308 is hinged to a second clamping block 310, the first gear 302 is meshed with the second gear 303, the second gear 303 is meshed with the second rack 308, and the third gear 304 is meshed with the first rack 305.

By activating the first motor 301, the first motor 301 drives the first gear 302 to rotate, since the first gear 302 and the second gear 303 are engaged, the second gear 303 and the third gear 304 are engaged, therefore, when the first gear 302 rotates, the second gear 303 is driven to rotate, and when the second gear 303 rotates, the third gear 304 is driven to rotate, while the second gear 303 meshes with the second rack 308, the third gear 304 meshes with the first rack 305, when the second gear 303 rotates, the second rack 308 is driven to slide, the second rack 308 drives the second connecting rod 309 to move, the second connecting rod 309 drives the second clamping block 310 to clamp the pressure vessel 1 when moving, the third gear 304 drives the first rack 305 to slide when rotating, the first rack 305 drives the first connecting rod 306 to move when sliding, and the first connecting rod 306 drives the first clamping block 307 to clamp the pressure vessel 1 when moving.

The bottom of the supporting plate 2 is provided with a second motor 401, the output end of the second motor 401 is provided with a fourth gear 402, the bottom of the supporting plate 2 is respectively provided with a first semicircular plate 405 and a second semicircular plate 406 in a symmetrical and rotating manner, the bottom of the first semicircular plate 405 is provided with a sixth gear 404, the bottom of the second semicircular plate 406 is provided with a fifth gear 403, the outer walls of the first semicircular plate 405 and the second semicircular plate 406 are respectively provided with a limiting block, the limiting blocks are provided with sliding holes which are matched with the first connecting rod 306 and the second connecting rod 309 in size and correspond to the positions of the first connecting rod and the second connecting rod, the fourth gear 402 is meshed with the fifth gear 403, the fifth gear 403 is meshed with the sixth gear 404, and the fifth gear 403 is meshed with the sixth gear 404.

By starting the second motor 401, the second motor 401 drives the fourth gear 402, because the fourth gear 402 is meshed with the fifth gear 403, and the fifth gear 403 is meshed with the sixth gear 404, when the fourth gear 402 rotates, the fifth gear 403 is driven to rotate, when the fifth gear 403 rotates, the sixth gear 404 is driven to rotate, when the fifth gear 403 rotates, the first semicircular plate 405 is driven to rotate, and when the sixth gear 404 rotates, the second semicircular plate 406 is driven to rotate, thereby controlling the expansion and the closure of the first semicircular plate 405 and the second semicircular plate 406.

The detection device 5 comprises a support plate 501 arranged on the external fixing device 4, a third motor 502 is mounted at the top of the support plate 501, a seventh gear 503 is mounted at the output end of the third motor 502, an electric push rod 506 is mounted at the top of the support plate 501, a cleaning block 507 is arranged at the output end of the electric push rod 506, a smearing device 505 is mounted at the top of the support plate 501, a sliding block is mounted at the bottom of the support plate 501, sliding grooves matched with the size of an upper sliding block of the support plate 501 in position are formed in the tops of a first semicircular plate 405 and a second semicircular plate 406, and teeth meshed with the seventh gear 503 are formed in the inner surfaces of the first semicircular plate 405 and the second semicircular plate 406.

By starting the third motor 502, the third motor 502 drives the seventh gear 503 to rotate, and since the first semicircular plate 405 and the second semicircular plate 406 are provided with teeth meshed with the seventh gear 503, in the process of rotating the seventh gear 503, the support plate 501 is driven to do circular motion by taking the pressure container 1 as the center, meanwhile, the inner walls of the first semicircular plate 405 and the second semicircular plate 406 are also provided with a lamp tube, fluorescent dye or coloring dye is sprayed on the outer surface of the pressure container 1 through the spraying device 504, and penetrating fluid can penetrate into the opening defect of the outer surface of the pressure container 1 under the capillary action for a period of time; after removing the redundant penetrating fluid on the surface of the part, coating the developer on the surface of the part by using a coating device 505, wherein the developer attracts the penetrating fluid retained in the defect under the action of a capillary tube, the penetrating fluid permeates back into the developer, and penetrating fluid traces at the defect are realized (yellow green fluorescence or bright red) under a certain light source (ultraviolet light or white light), so that the appearance and distribution state of the defect are detected, and after the detection is finished, the electric push rod 506 drives the cleaning block 507 to contact with the outer surface of the pressure container 1 for cleaning by starting the electric push rod 506.

A first fixed block 601 and a second fixed block 606 are respectively mounted on the outer wall of the first semicircular plate 405, a first rotating rod 602 is rotatably mounted at the top of the first fixed block 601, an eighth gear 603 is mounted at the bottom of the outer surface of the first rotating rod 602, a first spring 604 is sleeved at the top of the outer surface of the first rotating rod 602, and a first driving lever 605 is mounted at the top of the first rotating rod 602; the top of second fixed block 606 rotates installs second dwang 607, ninth gear 608 is installed to the bottom of second dwang 607 surface, the second spring 609 is cup jointed at the top of second dwang 607 surface, second driving lever 610 is installed at the top of second dwang 607, and ninth gear 608 and eighth gear 603 mesh mutually.

When the support plate 501 moves circularly, the second driving lever 610 is driven to rotate, the second driving lever 610 drives the second rotating lever 607 to rotate in the rotating process, the second rotating lever 607 drives the ninth gear 608 to rotate in the rotating process, the ninth gear 608 is meshed with the eighth gear 603, so the ninth gear 608 drives the eighth gear 603 to rotate in the rotating process, the eighth gear 603 drives the first driving lever 605 to rotate in the rotating process, a clamping groove which is matched with the first driving lever 605 in size and corresponds to the first driving lever 605 in position is further arranged on the second semicircular plate 406, the first driving lever 605 is clamped inside the clamping groove on the second semicircular plate 406, and the stability of the device is greatly improved.

The invention discloses a nondestructive testing device for a welding line of a pressure vessel, which has the following working principle: through starting detection device 5, and then realize that detection device 5 uses pressure vessel 1 to do circular motion as the axis, and then detect the welding seam on the pressure vessel 1, at the in-process that detects, press from both sides tightly it through clamping device 3, and is further, can also detect the pressure vessel 1 of not unidimensional.