CN111721837B - Hand-held type pipeline welding seam nondestructive test device - Google Patents
Hand-held type pipeline welding seam nondestructive test device Download PDFInfo
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- CN111721837B CN111721837B CN202010624661.7A CN202010624661A CN111721837B CN 111721837 B CN111721837 B CN 111721837B CN 202010624661 A CN202010624661 A CN 202010624661A CN 111721837 B CN111721837 B CN 111721837B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/223—Supports, positioning or alignment in fixed situation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
- G01N29/265—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the sensor relative to a stationary material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/0289—Internal structure, e.g. defects, grain size, texture
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/26—Scanned objects
- G01N2291/267—Welds
- G01N2291/2675—Seam, butt welding
Abstract
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.
Description
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 gas pipeline is used as a transmission channel of petroleum and natural gas, and under the condition of long-term operation of the oil gas pipeline, 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 oil gas pipeline poses serious threats to the life and property safety of people and the ecological environment. 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, a hand is often required to hold an instrument, 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.
The prior art also discloses that one type of equipment is fixed on a pipeline by using an annular holding rail, then a detection instrument moves along the rail to detect a weld joint, but when the equipment detects the weld joint of pipelines with different pipe diameters, the adjustment steps are more complicated, plane detection can only be carried out along a fixed direction, and the equipment is poor in applicability and flexibility.
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 scale marks;
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 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 fixation welding seam detecting instrument.
Preferably, the first half shaft and the second half shaft are respectively provided with a sliding groove in the central position of the front surface, the back surface, the top surface and the bottom surface thereof along the axial direction thereof, and the first half shaft and the second half shaft are respectively connected with the base frame and the sliding block in a sliding manner 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 of the second connecting end.
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 schematic rear view of the support 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 schematic front view of a positioning bolt assembly of the present invention;
FIG. 8 is an enlarged view of the structure at A in FIG. 3 according to the present invention.
In the figure: 1-a base frame; 11-a hand-held part; 111-an operation 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.
The first embodiment is as follows: referring to fig. 1-8, the present invention provides a technical solution, a hand-held pipeline weld nondestructive testing apparatus, including an instrument mounting portion 4 for fixedly mounting a weld detecting instrument, further including two base frames 1, a supporting shaft 2, a walking wheel assembly 3 and a positioning bolt assembly 5, wherein the upper surfaces of the base frames 1 are respectively and fixedly mounted with a hand-held portion 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, 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 rotatably connected 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 assembly 3 is arranged at two ends of the lower surface of the base frame 1, the walking wheel assembly 3 is composed of a base block 31 and walking wheels 32, the walking wheels 32 are rotatably arranged at the positions, close to the bottom ends, of the outer side surfaces of the base block 31, the cross section of the base block 31 is square, the upper surface of the base block 31 is detachably arranged at the end heads of the lower surface of the base frame 1, the periphery of the walking wheels 32 is of a concave-convex alternate structure along the horizontal direction, and concave portions of the periphery 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;
the quantity of instrument installation department 4 is two, and every instrument installation department 4 includes slider 41 respectively, lift slide bar 42, mount pad 43 and mounting bracket 44, slider 41 slides along the horizontal direction respectively and joint in on the front of first semi-axis 21 and second semi-axis 22, lift slide bar 42 slides along vertical direction and connects in the side of slider 41 to the positive direction extension lug, a side of mount pad 43 and lift slide bar 42's side are close to bottom department and rotate and are connected, the top of mounting bracket 44 rotates along the horizontal direction and installs on the extension of mount pad 43 front and back is served, slider 41 uses positioning bolt subassembly 5 fixed connection in the front of first semi-axis 21 and second semi-axis 22 respectively, mounting bracket 44 is used for the direct fixation welding seam detecting instrument.
In conclusion, when the length-adjustable support shaft body 2 is used, the first half shaft 21 and the second half shaft 22 respectively slide along the lower surface of the base frame 1 through the scale marks, the length of the support shaft body 2 can be accurately adjusted, and after the length is adjusted to the right position, the first half shaft 21 and the second half shaft 22 are respectively fixed at the central positions of the lower surface of the base frame 1 through the positioning bolt assemblies 5; according to the pipe diameter of the pipeline to be detected, the first connecting end 23 and the second connecting end 24 are rotated relatively to adjust the included angle between the first half shaft 21 and the second half shaft 22; adjusting the positions of the sliding block 41 on the first half shaft 21 and the second half shaft 22, fixing and positioning by using the positioning bolt assembly 5, then adjusting the up-down sliding position of the lifting slide rod 42 on the sliding block 41, and then adjusting the relative rotating angle of the mounting seat 43 and the lifting slide rod 42 according to the requirements of plane detection or non-plane detection; the installation of the nondestructive welding seam detecting instrument is convenient to realize through the horizontal rotation of the mounting rack 44 relative to the mounting seat 43; when the overall scanning detection direction of the welding seam nondestructive testing device needs to be adjusted, the base block 31 can be detached from the base frame 1 and installed after rotating for 90 degrees, and the cross section of the base block 31 is square, so that the 90-degree accurate and convenient steering adjustment of the base block 31 can be conveniently realized; the walking wheel 32 can adsorb the iron fillings on the pipeline surface through its concave part when rotating, and the walking wheel 32 of being convenient for is whole to roll steadily, simultaneously because the adsorption of magnet, is convenient for the walking wheel 32 in the location and the directional operation of iron pipeline outer wall.
In this embodiment, the first half shaft 21 and the second half shaft 22 have sliding grooves formed in the central positions of the front surface, the back surface, the top surface, and the bottom surface thereof, respectively, along the axial direction thereof, and the first half shaft 21 and the second half shaft 22 are slidably engaged with the base frame 1 and the slider 41 through the sliding grooves, respectively.
In this embodiment, the upper surfaces of the two ends of the base frame 1 are respectively in threaded sleeve joint with the positioning knobs 12, and the bottom ends of the positioning knobs 12 penetrate through the lower surface of the base frame 1 and then are in threaded sleeve joint with the threaded holes in the central positions of the upper surfaces of the base blocks 31; when in use, the positioning knob 12 is convenient for realizing the disassembly, assembly and angle adjustment of the base block 31.
In this embodiment, the positioning bolt assembly 5 includes a positioning bolt 51 and a fixing plate 52, the fixing plate 52 is screwed on the bottom end of the positioning bolt 51, the bottom end of the positioning bolt 51 at the base frame 1 extends into the sliding groove inner cavities of the upper surfaces of the first half shaft 21 and the second half shaft 22 after penetrating through the central position of the upper surface of the base frame 1, the inner end of the positioning bolt 51 at the slide block 41 extends into the sliding groove inner cavities of the front surfaces of the first half shaft 21 and the second half shaft 22 after penetrating through the back surface of the slide block 41, and the extending ends of the upper surfaces of the first half shaft 21 and the second half shaft 22 and the sliding groove inner cavities of the front surfaces corresponding to the positioning bolt 51 are clamped with the fixing plate 52; when the fixing device is used, the positioning bolt 51 is rotated to be in threaded sleeve connection with the fixing plate 52 relatively, and clamping force is provided to achieve the fixing and positioning effects.
In this embodiment, a sliding groove is formed in the middle position of the side surface of the front extending end of the sliding block 41 along the vertical direction, a positioning bolt 51 is sleeved in a through hole formed in the middle position of the side surface of the lifting slide bar 42, the inner end of the positioning bolt 51 extends into the inner cavity of the sliding groove of the front extending end of the sliding block 41, and a fixing plate 52 is clamped in the inner cavity of the sliding groove corresponding to the inner end of the positioning bolt 51; so that in use, the positioning bolt 51 is screwed into the fixed plate 52 to provide a clamping force to fix the slide block 41 to the first half shaft 21 and the second half shaft 22.
In this embodiment, a threaded hole is formed in the center of the side surface of the mounting seat 43, a positioning bolt 51 is sleeved in the threaded hole, and the inner end of the positioning bolt 51 is sleeved in the threaded hole formed in the side surface of the lifting slide bar 42 near the bottom end; when the lifting slide bar fixing device is used, the relative rotation angle between the mounting seat 43 and the lifting slide bar 42 can be adjusted by screwing the positioning bolt 51, and the mounting seat 43 with the adjusted angle is fixedly connected with the lifting slide bar 42.
In this embodiment, an operation hole 111 is formed on the upper surface of the handheld portion 11 corresponding to the positioning bolt 51; so that the positioning bolt 51 can be easily screwed through the operation hole 111 in use.
In the embodiment, the end surfaces of the first connecting end 23 and the second connecting end 24 are semi-circular arc surfaces, the first connecting end 23 and the second connecting end 24 are rotatably connected at the circle center of the corresponding semi-circle, a threaded hole is formed in the edge of the front surface of the first connecting end 23 close to the top end, a fixing bolt 25 is sleeved in the threaded hole, a plurality of threaded through holes are distributed in the periphery of the circle center of the front surface of the second connecting end 24 in an annular array mode, and the hole center distance between the circle center of the front surface 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 surface of the second connecting end 24 and the peripheral threaded holes thereof; when the fixing device is used, after the relative rotation angle of the first connecting end 23 and the second connecting end 24 is adjusted, the fixing bolt 25 is screwed, so that the effect of reliably and fixedly connecting the first connecting end 23 and the second connecting end 24 can be achieved.
In this embodiment, the traveling wheels 32 include two rubber wheels 321 and two magnet wheels 322, the magnet wheels 322 are respectively and fixedly connected to two side surfaces of the rubber wheels 321, and the outer diameter of the rubber wheels 321 is greater than the outer diameter of the magnet wheels 322; when the walking wheel is used, the walking wheel 32 is integrally rotated and operated by contacting the outer wall of the pipeline through the rubber wheel 321, and meanwhile, the iron wheels 322 adsorb iron chips on the outer wall of the pipeline and provide attraction between the whole walking wheel 32 and the wall of the iron pipeline through the iron wheels 322.
Example two: the position different from the technical characteristics in the first embodiment is only that the end surfaces of the first connecting end 23 and the second connecting end 24 are semi-circular arc surfaces, the first connecting end 23 and the second connecting end 24 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 with the circle center as the center at the position close to the edge of the front surface of the first connecting end 23, a plurality of threaded through holes are arranged in an annular array mode with the circle center as the center at the position close to the edge of the front surface of the second connecting end 24, the number of the threaded through holes on the first connecting end 23 is different from that of the threaded through holes on the second connecting end 24, the threaded through holes on the top end of the first connecting end 23 are in a corresponding relationship with the threaded through holes on the top end of the second connecting end 24, and the threaded through holes in the corresponding relationship are internally threaded with the fixing bolts 25, so that when the screw through holes are used, the first half shaft 21 and the second half shaft 22 can accurately adjust the rotation of the fixing angle according to the number of the threaded through holes on the first connecting end 23 and the second connecting end 24, and the two threaded through holes in the symmetrical relationship can meet the requirement that the first connecting end 23 and the first connecting end 24 are mutually pass through holes, for example, and the integral multiple of the connecting end 24 is provided with the corresponding threaded through holes provided with the number of the corresponding through holes of the connecting end 12, namely, and the connecting end is provided with the number of the connecting end 23; so that the fixing bolt 25 can be installed to relatively fix the first connection end 23 and the second connection end 24.
The working principle is as follows: when the fixing device is used, the first half shaft 21 and the second half shaft 22 respectively slide along the lower surface of the base frame 1 through the scale marks, the length of the supporting shaft body 2 can be accurately adjusted, after the length is adjusted in place, the positioning bolt 51 is screwed through the operation hole 111, the positioning bolt 51 and the fixing plate 52 are screwed relatively, and the first half shaft 21 and the second half shaft 22 are respectively fixed at the central positions of the lower surface of the base frame 1 through the provided clamping force; according to the pipe diameter of the pipeline to be detected, the first connecting end 23 and the second connecting end 24 are relatively rotated, and then the first connecting end 23 and the second connecting end 24 can be reliably and fixedly connected by screwing the fixing bolt 25, so that the included angle between the first half shaft 21 and the second half shaft 22 can be adjusted; adjusting the position of the slide block 41 on the first half-shaft 21 and the second half-shaft 22, and then providing a clamping force to fix the slide block 41 in position with the first half-shaft 21 and the second half-shaft 22 by rotating the positioning bolt 51 to be screwed in relative to the fixing plate 52; then adjusting the up-down sliding position of the lifting slide bar 42 on the slide block 41, and then adjusting the relative rotating angle of the mounting seat 43 and the lifting slide bar 42 according to the requirements of plane detection or non-plane detection; the mounting frame 44 horizontally rotates relative to the mounting base 43, so that the nondestructive welding seam detecting instrument can be conveniently mounted; when the overall scanning detection direction of the nondestructive welding line detection device needs to be adjusted, the base block 31 is detached from the pedestal 1 by screwing the positioning knob 12, and after the base block 31 is rotated by 90 degrees, the base block 31 and the pedestal 1 are fixedly connected by screwing the positioning knob 12; the walking wheel 32 is integrally contacted with the outer wall of the pipeline through the rubber wheel 321 to rotate, meanwhile, the magnet wheel 322 adsorbs iron chips on the outer wall of the pipeline, the rubber wheel 321 is convenient to roll stably, and due to the adsorption effect of the magnet wheel 322, the walking wheel 32 is convenient to position and operate directionally on the outer wall of the iron pipeline.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
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);
travelling 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), the upper surface of one end of the first half shaft (21) is connected with the middle position of the lower surface of the base frame (1) in a sliding and clamping mode 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 connected with the middle position of the lower surface of the base frame (1) in a sliding and clamping mode along the horizontal direction, the other end of the second half shaft (22) is fixedly connected with the second connecting end (24), the back face of the first connecting end (23) is connected with the front face of the second connecting end (24) in a rotating mode, and the upper surfaces of the first half shaft (21) and the second half shaft (22) are respectively provided with a scale mark;
the walking wheel assembly (3) is mounted at two ends of the lower surface of the base frame (1), the walking wheel assembly (3) is composed of a base block (31) and walking wheels (32), the walking wheels (32) are rotatably mounted at positions, close to the bottom ends, of the outer side surface of the base block (31), the cross section of the base block (31) is square, the upper surface of the base block (31) is detachably mounted at the end of the lower surface of the base frame (1), the periphery of the walking wheels (32) is of a concave-convex alternate structure in the horizontal direction, and concave portions of the periphery 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;
the number of the instrument installation parts (4) is two, each instrument installation part (4) comprises a sliding block (41), a lifting sliding rod (42), an installation seat (43) and an installation frame (44), the sliding blocks (41) are respectively connected to the front faces of the first half shaft (21) and the second half shaft (22) in a sliding and clamping mode along the horizontal direction, the lifting sliding rods (42) are connected to the side faces of the protruding blocks, extending towards the front direction, of the sliding blocks (41) in a sliding and clamping mode along the vertical direction, one side face of the installation seat (43) is connected with the side face, close to the bottom end, of the lifting sliding rods (42) in a rotating mode, the top end of the installation frame (44) is installed on the extending ends of the front face and the back face of the installation seat (43) in a rotating mode along the horizontal direction, the sliding blocks (41) are respectively fixedly connected to the front faces of the first half shaft (21) and the second half shaft (22) through the positioning bolt assemblies (5), and the installation frame (44) is used for directly fixing a welding line detection instrument;
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 peripheral threaded hole of the second connecting end (24).
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 slider (41) is placed in the middle and is seted up the spout along vertical direction, positioning bolt (51) have been cup jointed in the through-hole that the side placed in the middle of lift slide bar (42) was placed in the middle and is seted up, positioning bolt (51)'s inner end extends to in the spout inner chamber of the positive extension end of slider (41), and correspond in the spout inner chamber the inner end department joint of positioning bolt (51) has fixed plate (52).
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 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).
9. The utility model provides a hand-held type pipeline welding seam nondestructive test device, is including 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);
travelling 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), the upper surface of one end of the first half shaft (21) is connected with the middle position of the lower surface of the base frame (1) in a sliding and clamping mode 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 connected with the middle position of the lower surface of the base frame (1) in a sliding and clamping mode along the horizontal direction, the other end of the second half shaft (22) is fixedly connected with the second connecting end (24), the back face of the first connecting end (23) is connected with the front face of the second connecting end (24) in a rotating mode, and the upper surfaces of the first half shaft (21) and the second half shaft (22) are respectively provided with a scale mark;
the walking wheel assembly (3) is mounted at two ends of the lower surface of the base frame (1), the walking wheel assembly (3) is composed of a base block (31) and walking wheels (32), the walking wheels (32) are rotatably mounted at positions, close to the bottom ends, of the outer side surface of the base block (31), the cross section of the base block (31) is square, the upper surface of the base block (31) is detachably mounted at the end of the lower surface of the base frame (1), the periphery of the walking wheels (32) is of a concave-convex alternate structure in the horizontal direction, and concave portions of the periphery 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;
the number of the instrument installation parts (4) is two, each instrument installation part (4) comprises a sliding block (41), a lifting sliding rod (42), an installation seat (43) and an installation frame (44), the sliding blocks (41) are respectively connected to the front faces of the first half shaft (21) and the second half shaft (22) in a sliding and clamping mode along the horizontal direction, the lifting sliding rods (42) are connected to the side faces of the protruding blocks, extending towards the front direction, of the sliding blocks (41) in a sliding and clamping mode along the vertical direction, one side face of the installation seat (43) is connected with the side face, close to the bottom end, of the lifting sliding rods (42) in a rotating mode, the top end of the installation frame (44) is installed on the extending ends of the front face and the back face of the installation seat (43) in a rotating mode along the horizontal direction, the sliding blocks (41) are respectively fixedly connected to the front faces of the first half shaft (21) and the second half shaft (22) through the positioning bolt assemblies (5), and the installation frame (44) is used for directly fixing a welding line detection instrument;
the end faces of the first connecting end (23) and the second connecting end (24) are semi-circular arc faces, the first connecting end (23) and the second connecting end (24) are rotatably connected at the circle center of the corresponding semi-circle, the front face of the first connecting end (23) is close to the edge, a plurality of threaded through holes are arranged in an annular array mode with the circle center as the center, the front face of the second connecting end (24) is close to the edge, a plurality of threaded through holes are arranged in an annular array mode with the circle center as the center, the number of the threaded through holes in the first connecting end (23) is different from that of the threaded through holes in the second connecting end (24), the threaded through holes in the top end of the first connecting end (23) and the threaded through holes in the top end of the second connecting end (24) are in a corresponding relation, and fixing bolts (25) are sleeved in the threaded through holes in the corresponding relation.
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| CN202010624661.7A CN111721837B (en) | 2020-07-01 | 2020-07-01 | Hand-held type pipeline welding seam nondestructive test device |
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| CN202010624661.7A CN111721837B (en) | 2020-07-01 | 2020-07-01 | Hand-held type pipeline welding seam nondestructive test device |
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| CN111721837B true CN111721837B (en) | 2023-01-10 |
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