阅读说明：本技术 一种手持式管道焊缝无损检测装置 (Hand-held type pipeline welding seam nondestructive test device ) 是由 张迪 于 2020-07-01 设计创作，主要内容包括：本发明涉及管道焊缝无损探伤检测技术领域,具体公开了一种手持式管道焊缝无损检测装置,第一、二半轴的一端滑动卡接于基架的下表面,且另一端分别固定连接有第一、二连接端,第一连接端的背面与第二连接端的正面转动连接,第一、二半轴的上表面设置有刻度线；基块的横截面呈正方向,基块可拆卸地安装于基架下表面,行走轮外围凹部的材质为磁铁；滑块滑动卡接于支撑轴体的正面上,升降滑杆沿竖直方向滑动卡接于滑块的侧面,安装座侧面与升降滑杆侧面转动连接,安装架的顶端转动安装于安装座正面和背面,安装架固定探测仪器；解决了目前管道焊缝无损探伤检测装置检测误差大及适用性差和灵活性差的问题。(The invention relates to the technical field of nondestructive inspection of pipeline welding seams, and particularly discloses a handheld nondestructive inspection device for pipeline welding seams, wherein one ends of a first half shaft and a second half shaft are slidably clamped on the lower surface of a base frame, the other ends of the first half shaft and the second half shaft are fixedly connected with a first connecting end and a second connecting end respectively, the back surface of the first connecting end is rotatably connected with the front surface of the second connecting end, and the upper surfaces of the first half shaft and the second half shaft are provided with scale marks; the cross section of the base block is in the positive direction, the base block is detachably mounted on the lower surface of the base frame, and the concave part on the periphery of the walking wheel is made of a magnet; the sliding block is slidably clamped on the front surface of the supporting shaft body, the lifting slide bar is slidably clamped on the side surface of the sliding block along the vertical direction, the side surface of the mounting seat is rotatably connected with the side surface of the lifting slide bar, the top end of the mounting frame is rotatably arranged on the front surface and the back surface of the mounting seat, and the mounting frame is used for fixing a detection instrument; the problems of large detection error, poor applicability and poor flexibility of the conventional pipeline welding seam nondestructive inspection detection device are solved.)

1. The utility model provides a hand-held type pipeline welding nondestructive test device, includes instrument installation department (4) that are used for fixed mounting welding seam detecting instrument, its characterized in that still includes:

a base frame (1);

a support shaft body (2);

traveling wheel assembly (3) and

the number of the base frames (1) is two, and the upper surfaces of the base frames (1) are respectively and fixedly provided with a handheld part (11);

the supporting shaft body (2) comprises a first half shaft (21), a second half shaft (22), a first connecting end (23) and a second connecting end (24), wherein the upper surface of one end of the first half shaft (21) is in sliding clamping connection with the middle position of the lower surface of the base frame (1) along the horizontal direction, the other end of the first half shaft (21) is fixedly connected with the first connecting end (23), the upper surface of one end of the second half shaft (22) is in sliding clamping connection with the middle position of the lower surface of the base frame (1) along the horizontal direction, the other end of the second half shaft (22) is fixedly connected with the second connecting end (24), the back surface of the first connecting end (23) is in rotating connection with the front surface of the second connecting end (24), and the upper surfaces of the first half shaft (21) and the second half shaft (22) are respectively provided with scale marks;

the walking wheel assemblies (3) are mounted at two ends of the lower surface of the base frame (1), each walking wheel assembly (3) consists of a base block (31) and a walking wheel (32), each walking wheel (32) is rotatably mounted at a position, close to the bottom end, of the outer side surface of each base block (31), the cross section of each base block (31) is square, the upper surface of each base block (31) is detachably mounted at the end of the lower surface of the base frame (1), the peripheries of the walking wheels (32) are of a concave-convex alternate structure in the horizontal direction, and concave portions of the peripheries of the walking wheels (32) are made of magnets;

the positioning bolt assembly (5) is used for fixedly connecting the first half shaft (21) and the second half shaft (22) with the base frame (1) respectively;

wherein, the quantity of instrument installation department (4) is two, and every instrument installation department (4) includes slider (41), lift slide bar (42), mount pad (43) and mounting bracket (44) respectively, slider (41) respectively along the horizontal direction slip joint in on the front of first semi-axis (21) and second semi-axis (22), lift slide bar (42) along vertical direction slip joint in slider (41) extend the side of lug to the front direction, a side of mount pad (43) with the side of lift slide bar (42) is close to bottom department and rotates and is connected, the top of mounting bracket (44) is rotated along the horizontal direction and is installed on the extension of mount pad (43) front and back, slider (41) use respectively positioning bolt subassembly (5) fixed connection in the front of first semi-axis (21) and second semi-axis (22), the mounting bracket (44) is used for directly fixing the welding seam detection instrument.

2. The hand-held nondestructive testing device for the pipe weld according to claim 1, wherein: the middle positions of the front surface, the back surface, the top surface and the bottom surface of the first half shaft (21) and the second half shaft (22) are respectively provided with a sliding groove along the axial direction, and the first half shaft (21) and the second half shaft (22) are respectively in sliding clamping connection with the base frame (1) and the sliding block (41) through the sliding grooves.

3. The hand-held nondestructive testing device for the pipe weld according to claim 1, wherein: the upper surfaces of two ends of the base frame (1) are respectively in threaded sleeve joint with a positioning knob (12), and the bottom end of the positioning knob (12) penetrates through the lower surface of the base frame (1) and then is in threaded sleeve joint with a threaded hole in the center of the upper surface of the base block (31).

4. The hand-held pipe weld nondestructive testing device of claim 2, wherein the positioning bolt assembly (5) comprises:

positioning bolt (51) and

the fixing plate (52) is sleeved at the bottom end of the positioning bolt (51) in a threaded manner, the bottom end of the positioning bolt (51) at the base frame (1) penetrates through the central position of the upper surface of the base frame (1) and then extends into the sliding groove inner cavities of the upper surfaces of the first half shaft (21) and the second half shaft (22), the inner end of the positioning bolt (51) at the sliding block (41) penetrates through the back surface of the sliding block (41) and then extends into the sliding groove inner cavities of the front surfaces of the first half shaft (21) and the second half shaft (22), and the fixing plate (52) is clamped at the extending ends, corresponding to the positioning bolt (51), of the sliding groove inner cavities of the upper surfaces and the front surfaces of the first half shaft (21) and the second half shaft (22).

5. The hand-held nondestructive testing device for the pipe weld according to claim 4, wherein: the side of the positive extension end of the sliding block (41) is placed in the middle and is provided with a sliding groove along the vertical direction, a positioning bolt (51) is sleeved in a through hole formed in the side of the lifting sliding rod (42) in the middle, the inner end of the positioning bolt (51) extends into the sliding groove inner cavity of the positive extension end of the sliding block (41), and a fixing plate (52) is clamped at the inner end of the sliding groove inner cavity corresponding to the positioning bolt (51).

6. The hand-held nondestructive testing device for the pipe weld according to claim 5, wherein: a threaded hole is formed in the center of the side face of the mounting seat (43), a positioning bolt (51) is sleeved in the threaded hole in a sleeved mode, and the inner end of the positioning bolt (51) is sleeved with the threaded hole formed in the side face of the lifting slide rod (42) close to the bottom end in a threaded mode.

7. The hand-held nondestructive testing device for the pipe weld according to claim 6, wherein: an operation hole (111) is formed in the position, corresponding to the positioning bolt (51), of the upper surface of the handheld part (11).

8. The hand-held nondestructive testing device for the pipe weld according to claim 1, wherein: the end faces of the first connecting end (23) and the second connecting end (24) are semicircular arc faces, the first connecting end (23) and the second connecting end (24) are rotatably connected at the position corresponding to the circle center of the semicircle, a threaded hole is formed in the edge, close to the top end, of the front face of the first connecting end (23), a fixing bolt (25) is sleeved in the threaded hole, a plurality of threaded through holes are distributed in the periphery, located at the circle center, of the front face of the second connecting end (24) in an annular array mode, and the hole center distance between the circle center of the front face of the first connecting end (23) and the corresponding threaded hole is equal to the hole center distance between the circle center of the front face of the second connecting end (24) and the.

9. The hand-held nondestructive testing device for pipe welds according to claim 3, wherein the road wheel (32) comprises:

rubber wheel (321) and

magnet wheel (322), the quantity of magnet wheel (322) is two, and magnet wheel (322) respectively fixed connection in the both sides face of rubber wheel (321), the external diameter of rubber wheel (321) is greater than the external diameter of magnet wheel (322).

10. The hand-held nondestructive testing device for the pipe weld according to claim 1, wherein: the end surfaces of the first connecting end (23) and the second connecting end (24) are semi-arc surfaces, and the first connecting end (23) and the second connecting end (24) are rotatably connected at the circle center of the corresponding semicircle, a plurality of thread through holes are arranged on the front surface of the first connecting end (23) close to the edge in an annular array mode with the circle center as the center, a plurality of threaded through holes are arranged on the front surface of the second connecting end (24) close to the edge in an annular array mode with the circle center as the center, and the number of the threaded through holes on the first connecting end (23) is different from the number of the threaded through holes on the second connecting end (24), the thread through hole at the top end of the first connecting end (23) corresponds to the thread through hole at the top end of the second connecting end (24), and a fixing bolt (25) is sleeved in the thread through hole in the corresponding relation.

Technical Field

The invention relates to the technical field of nondestructive inspection of pipeline welding seams, in particular to a handheld nondestructive inspection device for pipeline welding seams.

Background

In order to ensure industrial production and residential life, pipeline engineering has always been in an important position. In pipeline engineering, an oil and gas pipeline is used as a conveying channel for petroleum and natural gas, and under the condition of long-period operation, serious accidents such as serious fire or explosion caused by oil leakage due to corrosion perforation, cracking, sealing failure and the like can occur, so that the serious threats are serious to the life and property safety and the ecological environment of people. Statistically, in the event of a pipeline leakage explosion, one of the most major risks affecting the safety thereof is weld defects. Therefore, the method has great safety significance and economic value for guaranteeing national public safety by accurately and rapidly detecting the pipeline welding seam.

The basic methods for nondestructive inspection of pipelines mainly include ray inspection, ultrasonic inspection, magnetic powder inspection and penetration inspection. The ultrasonic flaw detection technology is mainly based on the acoustoelastic principle, namely the variable of the ultrasonic wave propagation speed and the variable of the stress of a workpiece to be detected are in a linear relation.

At present, when the pipeline welding seam detection is carried out by adopting an ultrasonic flaw detection method on a pipeline construction site, an instrument is often held by hands, the distance from the center of the welding seam has a certain difference with the distance calibrated under ideal conditions in a laboratory, and if the distance has a deviation, the detection result also inevitably causes an error.

Disclosure of Invention

The invention aims to solve the problems of large detection error, poor applicability and poor flexibility of the conventional pipeline welding seam nondestructive inspection device, and designs a handheld pipeline welding seam nondestructive inspection device.

In order to achieve the purpose, the invention provides the following technical scheme: a hand-held pipeline welding seam nondestructive testing device comprises an instrument mounting part for fixedly mounting a welding seam detecting instrument, and further comprises two base frames, two supporting shaft bodies, two walking wheel assemblies and a positioning bolt assembly, wherein the upper surfaces of the base frames are respectively and fixedly provided with a hand-held part;

the supporting shaft body comprises a first half shaft, a second half shaft, a first connecting end and a second connecting end, wherein the upper surface of one end of the first half shaft is connected to the middle position of the lower surface of the base frame in a sliding and clamping mode along the horizontal direction, the other end of the first half shaft is fixedly connected with the first connecting end, the upper surface of one end of the second half shaft is connected to the middle position of the lower surface of the base frame in a sliding and clamping mode along the horizontal direction, the other end of the second half shaft is fixedly connected with the second connecting end, the back surface of the first connecting end is rotatably connected with the front surface of the second connecting end, and the upper surfaces of the first half shaft and the second half shaft are respectively provided with;

the walking wheel assembly is arranged at two ends of the lower surface of the base frame and consists of a base block and walking wheels, the walking wheels are rotatably arranged on the outer side surface of the base block close to the bottom end, the cross section of the base block is square, the upper surface of the base block is detachably arranged at the end of the lower surface of the base frame, the periphery of the walking wheels is of a concave-convex alternate structure along the horizontal direction, and a concave part at the periphery of the walking wheels is made of magnets;

the positioning bolt assembly is used for fixedly connecting the first half shaft and the second half shaft with the base frame respectively;

wherein, the quantity of instrument installation department is two, and every instrument installation department includes slider, lift slide bar, mount pad and mounting bracket respectively, the slider respectively along the horizontal direction slip joint in on the front of first semi-axis and second semi-axis, the lift slide bar along vertical direction slip joint in the side of slider to the positive direction extension lug, a side of mount pad with the side of lift slide bar is close to bottom department and rotates the connection, the top of mounting bracket along the horizontal direction rotate install in the extension at the mount pad front and the back is served, the slider uses respectively positioning bolt subassembly fixed connection in the front of first semi-axis and second semi-axis, the mounting bracket is used for direct fixed welding seam detecting instrument.

Preferably, the first half shaft and the second half shaft are respectively provided with a sliding groove in the middle position of the front surface, the back surface, the top surface and the bottom surface along the axial direction, and the first half shaft and the second half shaft are respectively in sliding clamping connection with the base frame and the sliding block through the sliding grooves.

Preferably, the upper surfaces of the two ends of the base frame are respectively in threaded sleeve connection with a positioning knob, and the bottom end of the positioning knob penetrates through the lower surface of the base frame and then is in threaded sleeve connection with a threaded hole in the center of the upper surface of the base block.

Preferably, the positioning bolt assembly comprises a positioning bolt and a fixing plate, the fixing plate is sleeved at the bottom end of the positioning bolt in a threaded manner, the bottom end of the positioning bolt at the base frame penetrates through the middle position of the upper surface of the base frame and then extends into the sliding groove inner cavities of the upper surfaces of the first half shaft and the second half shaft, the inner end of the positioning bolt at the sliding block penetrates through the back surface of the sliding block and then extends into the sliding groove inner cavities of the front surfaces of the first half shaft and the second half shaft, and the fixing plate is clamped at the extending ends of the upper surfaces of the first half shaft and the second half shaft and the sliding groove inner cavities of the front surfaces, which correspond to the positioning bolt.

Preferably, a sliding groove is formed in the middle position of the side face of the front extending end of the sliding block in the vertical direction, a positioning bolt is sleeved in a through hole formed in the middle position of the side face of the lifting sliding rod, the inner end of the positioning bolt extends into the sliding groove inner cavity of the front extending end of the sliding block, and a fixing plate is clamped in the sliding groove inner cavity corresponding to the inner end of the positioning bolt.

Preferably, a threaded hole is formed in the center of the side face of the mounting seat, a positioning bolt is sleeved in the threaded hole in a sleeved mode, and the inner end of the positioning bolt is sleeved with the threaded hole formed in the position, close to the bottom end, of the side face of the lifting slide rod in a threaded mode.

Preferably, an operation hole is formed in the upper surface of the handheld portion corresponding to the positioning bolt.

Preferably, the end faces of the first connecting end and the second connecting end are semi-circular arc faces, the first connecting end and the second connecting end are rotatably connected at the circle center of the corresponding semi-circle, a threaded hole is formed in the edge, close to the top end, of the front face of the first connecting end, a fixing bolt is sleeved in the threaded hole, a plurality of threaded through holes are distributed in the periphery of the circle center of the front face of the second connecting end in an annular array mode, and the hole center distance between the circle center of the front face of the first connecting end and the corresponding threaded hole is equal to the hole center distance between the circle center of the front face of the second connecting end and the peripheral threaded holes.

Preferably, the walking wheel includes rubber wheel and magnet wheel, the quantity of magnet wheel is two, and magnet wheel respectively fixed connection in the both sides face of rubber wheel, the external diameter of rubber wheel is greater than the external diameter of magnet wheel.

Preferably, the end surfaces of the first connecting end and the second connecting end are semi-circular arc surfaces, the first connecting end and the second connecting end are rotatably connected at the circle centers of the corresponding semi-circles, a plurality of threaded through holes are arranged in an annular array mode by taking the circle center as the center near the edge on the front side of the first connecting end, a plurality of threaded through holes are arranged in an annular array mode by taking the circle center as the center near the edge on the front side of the second connecting end, the number of the threaded through holes on the first connecting end is different from that of the threaded through holes on the second connecting end, the threaded through holes on the top end of the first connecting end and the threaded through holes on the top end of the second connecting end are in a corresponding relationship, and fixing bolts are sleeved in the threaded through holes in the corresponding relationship.

Compared with the prior art, the invention has the beneficial effects that:

1. the support shaft body of the nondestructive testing device for the pipeline welding seam is formed by rotationally connecting a first half shaft and a second half shaft which are rotationally connected, the lifting of the lifting slide bar is adjusted by adjusting the angle of the first half shaft and the second half shaft and the position of the slide block on the first half shaft and the second half shaft, the included angle between the mounting seat and the lifting slide bar is adjusted, and the horizontal included angle between the mounting frame and the mounting seat is adjusted, so that a testing instrument can be flexibly mounted, the nondestructive testing device can be flexibly suitable for the welding seam detection of pipelines with different pipe diameters and can realize plane detection and non-plane detection, and the adjustment step is simple and easy to operate.

2. The nondestructive testing device for the pipeline welding seam can adjust the length of the supporting shaft body through the horizontal sliding of the first half shaft and the second half shaft relative to the base frame, and the scale marks are arranged on the upper surfaces of the first half shaft and the second half shaft, so that the accurate adjustment of the length of the supporting shaft body is facilitated.

3. The nondestructive detection device for the pipeline welding seam can adjust the rolling direction of the walking wheel through the rotation of the base block, and the cross section of the base block is square, so that the walking wheel can be conveniently adjusted to rotate by 90 degrees, and different detection requirements can be met.

4. The periphery of the walking wheel of the nondestructive testing device for the welding seam of the pipeline is of a concave-convex alternate structure along the horizontal direction, and the concave part at the periphery of the walking wheel is made of the magnet, so that the walking wheel can adsorb scrap iron on the surface of the pipeline through the concave part when rotating, and the walking wheel can roll stably; meanwhile, due to the adsorption effect of the magnets, the walking wheels can be conveniently positioned and directionally operated on the outer wall of the pipeline.

Drawings

FIG. 1 is a schematic overall front view of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic side view of the present invention in its entirety;

FIG. 4 is a rear view of the supporting shaft according to the present invention;

FIG. 5 is a schematic top view of the walking wheel assembly of the present invention;

FIG. 6 is a side view of the instrument mounting portion of the present invention;

FIG. 7 is a front view of the positioning bolt assembly of the present invention;

fig. 8 is an enlarged view of a portion a of fig. 3 according to the present invention.

In the figure: 1-a base frame; 11-a hand-held part; 111-an access hole; 12-a positioning knob; 2-a support shaft body; 21-a first half-shaft; 22-a second half shaft; 23-a first connection end; 24-a second connection end; 25-a fixing bolt; 3-a walking wheel assembly; 31-a base block; 32-road wheels; 321-a rubber wheel; 322-magnet wheel; 4-an instrument mount; 41-a slide block; 42-lifting slide bar; 43-a mounting seat; 44-a mounting frame; 5-positioning the bolt assembly; 51-a positioning bolt; 52-fixing the plate.

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.