CN216646495U

CN216646495U - Tank body welding seam nondestructive flaw detection vehicle

Info

Publication number: CN216646495U
Application number: CN202123322373.5U
Authority: CN
Inventors: 甘小龙; 龚念; 方兴全
Original assignee: Hubei Xinglianhang Maritime Technology Development Co ltd
Current assignee: Hubei Xinglianhang Maritime Technology Development Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-05-31
Anticipated expiration: 2031-12-27

Abstract

The utility model discloses a tank body weld joint nondestructive flaw detection vehicle, which comprises a vehicle body, a base fixed on the vehicle body, a mounting frame and a rotary supporting component arranged on the base, wherein the rotary supporting component comprises a horizontally arranged turntable bearing, a placing disc fixed on the top surface of the turntable bearing and a driving motor for driving the turntable bearing to rotate, a centering adjustment limiting mechanism for adjusting the position of a tank body is arranged on the placing disc, a lifting component is arranged on the mounting frame, the lifting component comprises a fixed frame and a lifting mechanism for driving the fixed frame to lift and position in the vertical direction, a first telescopic device is fixed in the fixed frame, the telescopic end of the first telescopic device can drive the detection probe to extend to the side wall of the tank body placed on the placing plate and enable the detection probe to be attached to the arc-shaped welding line to be detected on the tank body. The advantage does, realizes the automatic alignment and the removal detection to the circular-arc welding seam of jar side wall, saves the manual work, and detection efficiency is high, and is effectual.

Description

Tank body welding seam nondestructive flaw detection vehicle

Technical Field

The utility model belongs to the field of nondestructive detection of welding seams, and particularly relates to a nondestructive flaw detection vehicle for a welding seam of a tank body.

Background

Nondestructive testing is a general term for all technical means for detecting whether a defect or non-uniformity exists in a tested object by using characteristics of sound, light, magnetism, electricity and the like without damaging or affecting the use performance of the tested object, giving information such as the size, position, property, quantity and the like of the defect, and further judging the technical state (such as qualification or non-qualification, residual service life and the like) of the tested object.

The following non-destructive testing methods are commonly used: ultrasonic Testing (UT), magnetic particle testing (MT), fluid Penetration Testing (PT), and X-Ray Testing (RT). The above-mentioned detection methods have advantages and disadvantages and a wide range of applications, wherein ultrasonic detection and X-ray detection generally require that a detection probe is engaged with a weld to be detected and moved along the extending direction of the weld to complete the detection of the whole weld. The method for detecting the joint between the manual handheld detection probe and the welding seam is the most common method at present, has the problems of large workload, easy shaking of hands or unfirm joint during detection, and influence on the detection effect, and is more obvious particularly when the detection is carried out on the arc-shaped welding seam on the cylindrical wall.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a tank body weld joint nondestructive flaw detection vehicle, aiming at overcoming the defects in the prior art.

The technical scheme for solving the technical problems is as follows: the utility model provides a jar body welding seam nondestructive test car, its includes the automobile body, is fixed in base on the automobile body, be provided with mounting bracket and rotatory supporting component on the base, rotatory supporting component includes the carousel bearing that the level set up, is fixed in placing set and drive of carousel bearing top surface carousel bearing pivoted driving motor, it is used for placing and waits to detect jar body just to place to coil and be equipped with the regulation the centering adjustment stop gear of jar body position, be equipped with lifting unit on the mounting bracket, lifting unit is including fixed frame and drive fixed frame goes up and down and the elevating system who fixes a position in the vertical direction, fixed frame internal fixation has a telescoping device, the flexible end of a telescoping device is fixed with the link that is used for installing test probe through the buffer, the flexible end of a telescoping device can drive test probe stretches to place the lateral wall of the jar body of placing on the dish and make test probe and institute and test probe and institute And fitting the arc-shaped welding seam to be detected on the tank body.

On the basis of the technical scheme, the utility model can be further improved as follows.

Further, the inner ring of the turntable bearing is fixedly connected with the upper surface of the base through a bottom supporting leg, the top surface of the outer ring of the turntable bearing is fixed with the placing disc, a gear ring is arranged on the periphery of the outer ring of the turntable bearing, the output end of the driving motor is connected with a driving gear, and the driving gear is meshed with the gear ring.

The gear transmission device has the advantages of simple structure, good transmission effect of meshing the gear and the gear ring, and stable operation.

Further, centering adjustment stop gear includes at least three the flexible adjustment portion that the peripheral even interval of placing the dish upper surface set up, flexible adjustment portion is followed the radial flexible in order to promote the jar body removes and makes the central axis of the jar body with place the center alignment of dish.

The beneficial effect who adopts above-mentioned further scheme is that, when jar body initial position and placing the dish had the deviation, the synchronous extension of three flexible adjusting part can guarantee jar body and place a dish center alignment to be convenient for make on the mounting bracket first telescoping device flexible direction intersect with the central axis of the jar body, then the welding seam laminating on the lateral wall of the jar that can be better and the body of test probe.

Further, the telescopic adjusting part is a servo electric push rod.

The servo electric push rod has the advantages that the servo electric push rod is good in controllability and capable of accurately regulating and controlling displacement, all the telescopic adjusting portions are enabled to extend synchronously, adjusting and clamping effects are guaranteed, and the direct-current electric push rod with a battery can be considered.

Further, the lifting component still includes vertical locating spacing spout on the mounting bracket, fixed frame sliding connection in the spacing spout, elevating system is the second telescoping device, the second telescoping device is fixed in the bottom of spacing spout, the flexible end of second telescoping device with the bottom fixed connection of fixed frame.

Adopt above-mentioned further scheme's beneficial effect be, the second telescoping device has the support fixed action, operates steadily.

Further, lifting unit still includes vertical locating two guide bars in the frame at the middle part of the mounting bracket, fixed frame sliding connection is two on the guide bar, elevating system includes stay cord, fixed pulley, reel and wire winding motor, the wire winding motor output with wire winding motor connects, stay cord one end is fixed in fixed frame top center, the other end is walked around the top twine behind the fixed pulley on the reel.

Adopt above-mentioned further scheme's beneficial effect to be, compact structure, the guide bar has better limiting displacement to fixed frame, prevents that it from producing and rocking.

Further, the one end of buffering portion with the flexible end threaded connection of first telescoping device, the other end is equipped with the confession the spout that the tail end of link stretched into and spout opening are equipped with the anticreep inside flanging, the link tail end be equipped with spout complex slider, the slider with it is equipped with buffer spring to press from both sides between the spout diapire.

Adopt above-mentioned further scheme's beneficial effect be, when jar body cylinder lateral wall is the standard cylinder, it rotates along with placing the dish and has certain eccentricity, can play the buffering effect through this buffer part, guarantees the better laminating of test probe and jar body lateral wall.

Further, the link is including being located anterior U type fork mouth, be equipped with the diaphragm of central zone mounting hole in the U type fork mouth, test probe passes the mounting hole is fixed in on the diaphragm, U type fork mouth both sides limit front end rotate respectively be connected with be used for with the gyro wheel of jar side wall laminating.

Adopt above-mentioned further scheme's beneficial effect to reduce the rubbing action of test probe and jar side wall, protect test probe and avoid jar external wall friction damage.

Further, still including locating the positioning mechanism that compresses tightly at mount frame top, compressing tightly positioning mechanism includes the third telescoping device, the flexible end of third telescoping device is just fixedly connected with compact heap down, the bottom of compact heap is passed through the bearing piece and is rotated the connection and compress tightly the dish, compact heap and below place the center alignment of dish.

Adopt the beneficial effect of above-mentioned further scheme to be, ensure that the jar body can be better along with placing the dish and rotate.

And the flaw detector host is fixed on the mounting frame and is electrically connected with the detection probe.

Adopt above-mentioned further scheme's beneficial effect be, the appearance host computer of detecting a flaw is fixed in the mounting bracket, guarantees that the wholeness is better.

Compared with the prior art, the utility model has the technical effects and advantages that:

when flaw detection is carried out on the arc-shaped welding line coaxial with the tank body on the cylindrical side wall of the tank body, the tank body can be placed on the placing disc, the position of the tank body is automatically adjusted and limited (with a clamping effect) through the centering adjustment limiting mechanism, the rotary supporting assembly drives the tank body to rotate around the central axis of the rotary supporting assembly, the detection probe on the connecting frame at the telescopic end of the first telescopic mechanism on the mounting frame is attached to the arc-shaped welding line, the welding line and the detection probe move relatively when the tank body rotates, automatic detection is realized, and the problems that labor intensity is high, shaking is easy, attachment is not firm and the like when the detection probe is moved manually are solved; the first telescopic mechanism is telescopic, so that the welding line detection device is suitable for detecting welding lines of tank bodies with different diameters; the lifting mechanism can adjust the height of the first telescopic mechanism, so that arc-shaped welding seams at different heights can be detected.

Drawings

FIG. 1 is a schematic view of a flaw detection vehicle for welding seams of a tank body provided by the utility model;

FIG. 2 is a left side view of a mounting frame of the flaw detection vehicle for tank welds shown in FIG. 1 (the main unit of the flaw detector is not shown and the lifting mechanism is a second telescoping device);

FIG. 3 is a schematic view of the lifting mechanism of the mounting bracket of FIG. 2 including a guide rod, a pull rope, a fixed pulley and a winding wheel;

FIG. 4 is a top view of the positioning plate and the centering and adjusting mechanism (with 4 telescopic adjusting parts) on the upper surface of the positioning plate in FIG. 1;

FIG. 5 is a top view of the tray of FIG. 4 with 3 telescoping adjustment units;

fig. 6 is an enlarged schematic view of the buffer portion and the connecting frame at the telescopic end of the first telescopic device in fig. 1.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a vehicle body; 2. a base; 3. a mounting frame; 4. a turntable bearing; 5. placing a tray; 6. a drive motor; 7. a fixing frame; 8. a first telescoping device; 9. a buffer section; 10. detecting a probe; 11. a connecting frame; 12. a telescopic adjustment part; 13. a second telescoping device; 14. a guide bar; 15. pulling a rope; 16. a fixed pulley; 17. a reel; 18. a buffer spring; 19. a roller; 20. a third telescoping device; 21. and (4) a flaw detector host.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, if terms indicating orientation such as "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc., are used, they indicate orientation or positional relationship based on that shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 to 6, the utility model provides a tank weld nondestructive flaw detection vehicle, which comprises a vehicle body 1, a base 2 fixed on the vehicle body 1, wherein the base 2 is provided with a mounting frame 3 and a rotary support assembly, the rotary support assembly comprises a horizontally arranged turntable bearing 4, a placing disc 5 fixed on the top surface of the turntable bearing 4 and a driving motor 6 driving the turntable bearing 4 to rotate, the placing disc 5 is used for placing a tank to be detected, the placing disc 5 is provided with a centering adjustment limiting mechanism for adjusting the position of the tank, the mounting frame 3 is provided with a lifting assembly, the lifting assembly comprises a fixed frame 7 and a lifting mechanism for driving the fixed frame 7 to lift and position in the vertical direction, a first telescopic device 8 is fixed in the fixed frame 7, the telescopic end of the first telescopic device 8 is fixed with a connecting frame 11 for mounting a detection probe 10 through a buffer part 9, the telescopic end of the first telescopic device 8 can drive the detection probe 10 to extend to the side wall of the tank body placed on the placing disc 5 and enable the detection probe 10 to be attached to the arc-shaped welding line to be detected on the tank body.

It should be noted that the vehicle body can be provided with a driving mechanism and wheels, so that better maneuverability is ensured. The automatic alignment detection device has the effect of automatic alignment detection on arc-shaped (including circular arcs with whole circles, semi-circles or other radians) welding seams on the outer wall of the tank body, which are coaxial with the tank body, reduces labor, and is particularly suitable for welding seam detection of batch products with the same specification.

In an embodiment of the present invention, the inner ring of the turntable bearing 4 is fixedly connected with the upper surface of the base 2 through a bottom support leg, the placing disc 5 is fixed on the top surface of the outer ring of the turntable bearing 4, a gear ring is arranged on the periphery of the outer ring of the turntable bearing 4, the output end of the driving motor 6 is connected with a driving gear, and the driving gear is meshed with the gear ring.

It will be appreciated that instead of a gear arrangement in which the ring gear meshes with the drive gear, it could be directly belt driven or other conceivable prior art drive arrangements for rotation.

In an embodiment of the present invention, the centering adjustment limiting mechanism includes at least three telescopic adjusting portions 12 evenly spaced on the periphery of the upper surface of the placing tray 5, and the telescopic adjusting portions 12 extend and retract along the radial direction of the placing tray 5 to push the tank to move so that the central axis of the tank is aligned with the center of the placing tray 5.

As shown in fig. 4 and 5, one of the two telescopic adjusting parts is in a form of four telescopic adjusting parts which are interrupted by 90 degrees, and the other is in a fixing mode of three telescopic adjusting parts which are separated by 120 degrees.

In an embodiment of the present invention, the telescopic adjustment portion 12 is a servo electric push rod.

It will be appreciated that the telescopic adjustment means may be in the form of a manually adjustable telescopic lead screw or the like, in addition to the electrically telescopic power push rod form.

In an embodiment of the present invention, the lifting assembly further includes a limiting sliding groove vertically disposed on the mounting frame 3, the fixing frame 7 is slidably connected in the limiting sliding groove, the lifting mechanism is a second telescopic device 13, the second telescopic device 13 is fixed at the bottom of the limiting sliding groove, and a telescopic end of the second telescopic device 13 is fixedly connected with the bottom of the fixing frame 7.

In an embodiment of the present invention, the lifting assembly further includes two guide rods 14 vertically arranged in a middle frame of the mounting frame 3, the fixing frame 7 is slidably connected to the two guide rods 14, the lifting mechanism includes a pull rope 15, a fixed pulley 16, a reel 17 and a winding motor, an output end of the winding motor is connected to the winding motor, one end of the pull rope 15 is fixed at the center of the top of the fixing frame 7, and the other end of the pull rope is wound on the reel 17 after passing over the fixed pulley 16.

In an embodiment of the present invention, one end of the buffer portion 9 is in threaded connection with the telescopic end of the first telescopic device 8, the other end is provided with a sliding slot into which the tail end of the connecting frame 11 extends, the opening of the sliding slot is provided with an anti-drop inward flange, the tail end of the connecting frame 11 is provided with a sliding block matched with the sliding slot, and a buffer spring 18 is clamped between the sliding block and the bottom wall of the sliding slot.

In an embodiment of the present invention, the connecting frame 11 includes a U-shaped fork located at the front, a transverse plate with a mounting hole at the center is disposed in the U-shaped fork, the detecting probe 10 passes through the mounting hole and is fixed on the transverse plate, and the front ends of two side edges of the U-shaped fork are respectively and rotatably connected with a roller 19 for attaching to the side wall of the tank body.

It can be understood that the roller can be a universal wheel, and the roller can move along the outer wall in the circumferential direction relative to the tank body and also can move along the vertical direction under the action of the lifting assembly, so that the detection of the axial weld joint can be realized.

In an embodiment of the present invention, the present invention further includes a compressing and positioning mechanism disposed on the top of the mounting frame 3, the compressing and positioning mechanism includes a third telescopic device 20, a telescopic end of the third telescopic device 20 faces downward and is fixedly connected with a compressing block, a bottom of the compressing block is rotatably connected with a compressing disk through a bearing member, and the compressing block is aligned with a center of the placing disk 5 below.

In an embodiment of the present invention, the inspection device further includes a main inspection device 21 fixed on the mounting rack 3, and the main inspection device 21 is electrically connected to the inspection probe 10. When the length of the cable between the flaw detector main unit and the detection probe is limited, the flaw detector main unit can be fixed on the fixing frame and lifted along with the fixing frame.

The basic principle of the utility model is that when the flaw detection is carried out on the arc welding seam which is coaxial with the tank body on the cylindrical side wall of the tank body, the tank body can be placed on the placing disc, the position of the tank body is automatically adjusted and limited (has a clamping effect) through the centering adjustment limiting mechanism, the rotary supporting component drives the tank body to rotate around the central axis of the rotary supporting component, the detection probe on the connecting frame at the telescopic end of the first telescopic mechanism on the mounting frame is attached to the arc welding seam, and the welding seam and the detection probe move relatively when the tank body rotates automatically, so that the automatic detection is realized; the first telescopic mechanism is telescopic, so that the welding line detection device is suitable for detecting welding lines of tank bodies with different diameters; the lifting mechanism can adjust the height of the first telescopic mechanism, so that arc-shaped welding seams at different heights can be detected.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The nondestructive flaw detection vehicle for the welding seam of the tank body is characterized by comprising a vehicle body (1), a base (2) fixed on the vehicle body (1), a mounting frame (3) and a rotary supporting component are arranged on the base (2), the rotary supporting component comprises a turntable bearing (4) arranged horizontally, a placing disc (5) fixed on the top surface of the turntable bearing (4) and a driving motor (6) for driving the turntable bearing (4) to rotate, the placing disc (5) is used for placing the tank body to be detected, a centering adjustment limiting mechanism for adjusting the position of the tank body is arranged on the placing disc (5), a lifting component is arranged on the mounting frame (3), the lifting component comprises a fixed frame (7) and a lifting mechanism for driving the fixed frame (7) to ascend and descend in the vertical direction and to be positioned, a first telescopic device (8) is fixed in the fixed frame (7), the telescopic end of the first telescopic device (8) is fixed with a connecting frame (11) used for mounting a detection probe (10) through a buffer part (9), and the telescopic end of the first telescopic device (8) can drive the detection probe (10) to extend to the side wall of the tank body placed on the placing plate (5) and enable the detection probe (10) to be attached to an arc-shaped welding seam to be detected on the tank body.

2. The nondestructive flaw detection vehicle for the welding line of the tank body according to claim 1, wherein an inner ring of the turntable bearing (4) is fixedly connected with the upper surface of the base (2) through a bottom support leg, the placing disc (5) is fixed on the top surface of an outer ring of the turntable bearing (4), a gear ring is arranged on the periphery of the outer ring of the turntable bearing (4), and a driving gear is connected to the output end of the driving motor (6) and meshed with the gear ring.

3. The nondestructive flaw detection vehicle for the welding line of the tank body according to claim 1, wherein the centering adjustment limiting mechanism comprises at least three telescopic adjustment portions (12) which are uniformly arranged at intervals on the periphery of the upper surface of the placing plate (5), and the telescopic adjustment portions (12) are telescopic along the radial direction of the placing plate (5) to push the tank body to move so that the central axis of the tank body is aligned with the center of the placing plate (5).

4. The nondestructive inspection vehicle for tank body weld joint according to claim 3, wherein the telescopic adjusting part (12) is a servo electric push rod.

5. The nondestructive inspection vehicle for the welding line of the tank body according to claim 1, wherein the lifting assembly further comprises a limit chute vertically arranged on the mounting frame (3), the fixing frame (7) is slidably connected in the limit chute, the lifting mechanism is a second expansion device (13), the second expansion device (13) is fixed at the bottom of the limit chute, and the expansion end of the second expansion device (13) is fixedly connected with the bottom of the fixing frame (7).

6. The tank welding seam nondestructive inspection vehicle according to claim 1, wherein the lifting assembly further comprises two guide rods (14) vertically arranged in a middle frame of the mounting frame (3), the fixing frame (7) is slidably connected to the two guide rods (14), the lifting mechanism comprises a pull rope (15), a fixed pulley (16), a reel (17) and a winding motor, an output end of the winding motor is connected with the winding motor, one end of the pull rope (15) is fixed at the top center of the fixing frame (7), and the other end of the pull rope (15) winds around the fixed pulley (16) and then winds on the reel (17).

7. The nondestructive inspection vehicle for the welding seam of the tank body according to claim 1, wherein one end of the buffer portion (9) is in threaded connection with the telescopic end of the first telescopic device (8), the other end of the buffer portion is provided with a chute into which the tail end of the connecting frame (11) extends, an anti-falling inward flange is arranged at an opening of the chute, a sliding block matched with the chute is arranged at the tail end of the connecting frame (11), and a buffer spring (18) is clamped between the sliding block and the bottom wall of the chute.

8. The nondestructive inspection vehicle for the welding seam of the tank body according to any one of claims 1 to 7, wherein the connecting frame (11) comprises a U-shaped fork opening positioned at the front part, a transverse plate with a mounting hole at the center is arranged in the U-shaped fork opening, the inspection probe (10) passes through the mounting hole and is fixed on the transverse plate, and the front ends of two side edges of the U-shaped fork opening are respectively and rotatably connected with a roller (19) which is used for being attached to the side wall of the tank body.

9. The nondestructive flaw detection vehicle for the welding line of the tank body according to any one of claims 1 to 7, further comprising a compressing and positioning mechanism arranged at the top of the mounting frame (3), wherein the compressing and positioning mechanism comprises a third telescopic device (20), a telescopic end of the third telescopic device (20) faces downwards and is fixedly connected with a compressing block, the bottom of the compressing block is rotatably connected with a compressing disc through a bearing piece, and the compressing block is aligned with the center of the placing disc (5) below.

10. The nondestructive inspection vehicle for the welding line of the tank body according to any one of claims 1 to 7, further comprising a flaw detector main unit (21) fixed on the mounting frame (3), wherein the flaw detector main unit (21) is electrically connected with the inspection probe (10).