阅读说明：本技术 一种管道射线探伤的激光测距对源装置 (Laser ranging source aligning device for pipeline radiographic inspection ) 是由 孙利平 谭志光 周远 于 2019-10-18 设计创作，主要内容包括：一种管道射线探伤的激光测距对源装置,包括行走小车,行走小车顶侧的中间设有电动伸缩杆,行走小车的左侧设有支撑板,支撑板的左侧固定连接圆环的右侧,圆环内设有圆板,圆板外周的上下前后侧与圆环的内壁分别通过拉簧固定连接,圆板左侧的中间固定连接横管的右端,横管的外周轴承安装同轴的套管,套管的外周轴承安装同轴的套筒,套管的外周固定安装第一斜齿轮,第一斜齿轮位于套筒内,套筒外周的中部开设三个均匀圆周分布的通孔。本发明结构简单,构思巧妙,能够在管道内对周向辐射X射线探伤机进行矫正,使周向辐射X射线探伤机与管道的轴线共线,同时使反光板与管道的轴线垂直,有利于激光测距的准确性,能够满足实际需求,适合推广。(The utility model provides a pipeline radiographic inspection's laser rangefinder is to source device, including the walking dolly, the centre on walking dolly top side is equipped with electric telescopic handle, the left side of walking dolly is equipped with the backup pad, the right side of the left side fixed connection ring of backup pad, be equipped with the plectane in the ring, the upper and lower front and back side of plectane periphery is respectively through extension spring fixed connection with the inner wall of ring, the right-hand member of violently managing of the left middle fixed connection of plectane, the coaxial sleeve pipe of the outer peripheral bearing installation of violently managing, the coaxial sleeve of sheathed tube outer peripheral bearing installation, the first helical gear of sheathed tube outer peripheral fixed mounting, first helical gear is located the sleeve, the through. The invention has simple structure and ingenious conception, can correct the circumferential radiation X-ray flaw detector in the pipeline, leads the axial line of the circumferential radiation X-ray flaw detector and the axial line of the pipeline to be collinear, simultaneously leads the reflecting plate to be vertical to the axial line of the pipeline, is beneficial to the accuracy of laser ranging, can meet the actual requirement and is suitable for popularization.)

1. The utility model provides a pipeline radiographic inspection's laser rangefinder is to source device which characterized in that: comprises a walking trolley (1), an electric telescopic rod (2) is arranged in the middle of the top side of the walking trolley (1), a supporting plate (3) is arranged on the left side of the walking trolley (1), the left side of the supporting plate (3) is fixedly connected with the right side of a circular ring (4), a circular plate (5) is arranged in the circular ring (4), the upper, lower, front and rear sides of the periphery of the circular plate (5) are respectively and fixedly connected with the inner wall of the circular ring (4) through a tension spring (37), the middle of the left side of the circular plate (5) is fixedly connected with the right end of a transverse pipe (6), a coaxial sleeve (7) is arranged on the peripheral bearing of the transverse pipe (6), a coaxial sleeve (8) is arranged on the peripheral bearing of the sleeve (7), a first helical gear (9) is fixedly arranged on the periphery of the sleeve (7), the first helical gear (9) is positioned in the sleeve (8), three through holes (10) which are, the inner end of the screw rod is fixedly provided with a second coaxial helical gear (12) respectively, the second helical gear (12) is meshed with the first helical gear (9) respectively, the periphery of the screw rod (11) is provided with an internal threaded pipe (13) in a threaded manner respectively, the outer end of the internal threaded pipe (13) is fixedly provided with a transverse plate (14) respectively, the inner side of the transverse plate (14) is fixedly connected with the periphery of the sleeve (8) through a plurality of telescopic rods (15) respectively, the outer side of the transverse plate (14) is provided with a row of a plurality of spherical grooves (20) respectively, smooth spheres (21) are movably arranged in the spherical grooves (20) respectively, and the smooth spheres (21) can only rotate in the corresponding spherical grooves; the left side of the coaxial interior ring gear of right side fixed connection (16) of sleeve (8), the coaxial ring gear of right side fixed mounting (17) of sleeve (7) periphery, the top of ring gear (17) is equipped with gear (18), gear (18) respectively with ring gear (17), interior ring gear (16) meshing cooperation, the left end of middle fixed connection motor (19) pivot on gear (18) right side, motor (19) and plectane (5) fixed connection, ring (4) left side top is equipped with vertical reflector panel (22), reflector panel (22) and plectane (5) fixed connection, the coaxial circumference radiation X ray radiographic inspection machine (35) of left end fixed mounting of violently pipe (6).

2. The laser ranging source device for pipeline radiographic inspection according to claim 1, wherein: walking dolly (1) top side left intermediate bearing connect the lower extreme of lead screw (23), the periphery screw-thread fit mounting nut (24) of lead screw (23), the left end of lead screw (23) be equipped with walking dolly (1) fixed connection's riser (25), the left side of riser (25) is seted up the bar and is passed through groove (26), the bar passes through movable mounting slide bar (27) in groove (26), slide bar (27) only can follow the bar and pass through groove (26) and slide from top to bottom, the one end and nut (24) fixed connection of slide bar (27), the other end and backup pad (3) fixed connection of slide bar (27).

3. The laser ranging source device for pipeline radiographic inspection according to claim 2, wherein: the right side on walking dolly (1) top side be equipped with balancing weight (28), the bottom side of balancing weight (28) and the plane sliding contact cooperation on walking dolly (1) top side, screw through-hole (29) are seted up to the centre of balancing weight (28), screw through-hole (29) female thread fit installs horizontal lead screw (30), the coaxial axle bed (31) of right side bearing installation of horizontal lead screw (30) periphery, the top side fixed connection of axle bed (31) and walking dolly (1), the top side of axle bed (31) is to being connected with the lower extreme of electric telescopic handle (2), the coaxial third helical gear (32) of left end fixed mounting of horizontal lead screw (30), the coaxial fourth helical gear (33) of lower extreme fixed mounting of lead screw (23) periphery, third helical gear (32) and fourth helical gear (33) meshing cooperation.

4. The laser ranging source device for pipeline radiographic inspection according to claim 1, wherein: the circular plate (5) is an iron plate, and a magnet plate (34) is fixedly arranged on the right side of the supporting plate (3).

5. The laser ranging source device for pipeline radiographic inspection according to claim 1, wherein: the walking trolley (1) is an electric remote control trolley.

6. The laser ranging source device for pipeline radiographic inspection according to claim 1, wherein: the left end and the right end of the bottom side of the transverse pipe (6) are respectively provided with a through groove (36).

Technical Field

The invention belongs to the field of pipeline flaw detection equipment, and particularly relates to a laser ranging source alignment device for pipeline radiographic inspection.

Background

For the interior of pipeline weldment, currently, many methods of nondestructive inspection and radiographic inspection are adopted for single-wall projection detection

The defects in the pipeline weldment can be detected by utilizing the attenuation of rays according to a certain rule in the process of penetrating an object and utilizing the relation between the attenuation degree and ray sensitization or fluorescence excitation; when the radial flaw detection is adopted, a crawler is generally used for sending a radioactive source guide pipe into a weldment, and after the crawler creeps in a pipeline for a long distance, the fact that a radioactive source is located on the axis of the pipeline is difficult to guarantee, the measuring result is deviated, meanwhile, whether a circumferential radiation X-ray flaw detector is aligned to the cross section of a girth weld is difficult to determine, the existing laser distance measurement is performed on a source device through a luminous plate, the luminous plate is fixed on the crawler, after the crawler deflects, the luminous plate cannot be kept vertical, the ray which causes the laser distance measurement cannot be reflected vertically, the distance measurement effect is influenced, and actual requirements cannot be met.

Disclosure of Invention

The invention provides a laser ranging source aligning device for pipeline radiographic inspection, which is used for solving the defects in the prior art.

The invention is realized by the following technical scheme:

a laser ranging and aligning device for pipeline radiographic inspection comprises a walking trolley, an electric telescopic rod is arranged in the middle of the top side of the walking trolley, a supporting plate is arranged on the left side of the walking trolley, the left side of the supporting plate is fixedly connected with the right side of a circular ring, a circular plate is arranged in the circular ring, the upper side, the lower side, the front side and the rear side of the periphery of the circular plate are fixedly connected with the inner wall of the circular ring through tension springs respectively, the middle of the left side of the circular plate is fixedly connected with the right end of a transverse pipe, a coaxial sleeve is arranged on the peripheral bearing of the sleeve, a first helical gear is fixedly arranged on the periphery of the sleeve, three through holes which are uniformly distributed circumferentially are formed in the middle of the periphery of the sleeve, lead screws are respectively and bearing-mounted in the through holes, the outer ends of the internal thread pipes are respectively fixedly provided with a transverse plate, the inner side of the transverse plate is fixedly connected with the periphery of the sleeve through a plurality of telescopic rods, the outer side of the transverse plate is respectively provided with a row of a plurality of spherical grooves, smooth balls are respectively and movably arranged in the spherical grooves, and the smooth balls can only rotate in the corresponding spherical grooves; the left side of the coaxial interior ring gear of telescopic right side fixed connection, the coaxial ring gear of right side fixed mounting of sleeve pipe periphery, ring gear's top is equipped with the gear, the gear respectively with ring gear, interior ring gear meshing cooperation, the left end of the middle fixed connection motor shaft on gear right side, motor and plectane fixed connection, ring left side top is equipped with vertical reflector panel, reflector panel and plectane fixed connection, the coaxial circumference radiation X ray radiographic inspection machine of left end fixed mounting of violently managing.

As above a pipeline radiographic inspection's laser rangefinder is to source device, walking dolly top side left intermediate bearing connect the lower extreme of lead screw, the periphery screw-thread fit mounting nut of lead screw, the left end of lead screw be equipped with walking dolly fixed connection's riser, the left side of riser is seted up the bar and is passed through the groove, the bar passes through inslot movable mounting slide bar, the slide bar only can follow the bar and pass through the groove and slide from top to bottom, the one end and the nut fixed connection of slide bar, the other end and the backup pad fixed connection of slide bar.

As above a pipeline radiographic inspection's laser rangefinder is to source device, the right side of walking dolly top side be equipped with the balancing weight, the bottom side of balancing weight and the plane sliding contact cooperation of walking dolly top side, the screw thread through-hole is seted up to the centre of balancing weight, the horizontal lead screw of screw thread through-hole female fit installation, the coaxial axle bed of right side bearing installation of horizontal lead screw periphery, the top side fixed connection of axle bed and walking dolly, the top side of axle bed is to being connected with electric telescopic handle's lower extreme, the coaxial third helical gear of left end fixed mounting of horizontal lead screw, the coaxial fourth helical gear of lower extreme fixed mounting of lead screw periphery, third helical gear and fourth helical gear meshing cooperation.

In the laser ranging source device for pipeline radiographic inspection, the circular plate is an iron plate, and a magnet plate is fixedly mounted on the right side of the supporting plate.

The laser ranging source device for pipeline radiographic inspection is characterized in that the walking trolley is an electric remote control trolley.

In the laser ranging source alignment device for pipeline radiographic inspection, the left end and the right end of the bottom side of the transverse pipe are respectively provided with the through grooves.

The invention has the advantages that: the invention has simple structure and ingenious conception, can correct the circumferential radiation X-ray flaw detector in the pipeline, leads the axial line of the circumferential radiation X-ray flaw detector and the axial line of the pipeline to be collinear, simultaneously leads the reflecting plate to be vertical to the axial line of the pipeline, is beneficial to the accuracy of laser ranging, can meet the actual requirement and is suitable for popularization. When the device is used, the device is placed in a pipeline, the walking trolley can drive the device to move forwards or backwards in the pipeline, a laser range finder is used at a pipeline port to emit laser beams to a reflector, the distance A between the reflector and the pipeline port is measured, the distance B between the right side of the reflector and a circumferential radiation X-ray inspection machine is added, the distance C between the circumferential radiation X-ray inspection machine and the pipeline port is measured until the distance C is equal to the distance between a circumferential welding seam and the pipeline port, the circumferential radiation X-ray inspection machine is positioned in the circumferential welding seam at the moment, then an electric telescopic rod is extended until the upper end of the electric telescopic rod is in close contact fit with the top of the pipeline, the walking trolley is fixed in the pipeline, the motor is electrified to positively rotate, a rotating shaft of the motor drives a gear to rotate, the gear drives a sleeve to rotate through an inner annular gear, and the sleeve drives a screw rod, The transverse plates, the telescopic rods and the smooth balls revolve along the axis of the transverse pipe, meanwhile, the gear drives the sleeve to rotate reversely through the ring gear, the sleeve drives the first bevel gears to rotate, the second bevel gears respectively roll along the first bevel gears, the second bevel gears respectively drive the corresponding screw rods to rotate, the internal thread pipes respectively drive the corresponding transverse plates and the smooth balls to move outwards, the telescopic rods are stretched until the outer sides of the smooth balls are in contact fit with the inner wall of the pipeline, the smooth balls can roll along the inner wall of the pipeline, when the transverse pipe is not collinear with the central line of the pipeline but the axes are parallel, the smooth balls on the same transverse plate are firstly in contact fit with the transverse line at one part of the inner wall of the pipeline and move outwards along with the smooth balls, the transverse plates are driven to move in the direction away from the contact transverse line, part of the tension springs are further stretched, the other part of the tension springs are, at the moment, the transverse pipe is collinear with the central line of the pipeline, and the circumferential radiation X-ray flaw detector is collinear with the central line of the pipeline; when there is the contained angle in the axis of violently managing and the axis of pipeline, the diaphragm outwards removes the smooth spheroid outside three diaphragm all with the inner wall contact cooperation of pipeline, the right side of plectane and the left side formation contained angle of backup pad, violently manage this moment and pipeline central line collineation, the reflector panel is in vertical state, then measure the distance of pipeline mouth to reflector panel through laser range finder, if this distance equals distance A, measure on next step, if this distance does not equal distance A, then control electric telescopic handle shortens, the walking dolly is controlled again simultaneously and is advanced or retreat, smooth spheroid can be followed the pipeline inner wall and removed, it equals distance A to laser range finder measure the distance of pipeline mouth to reflector panel, circumference radiation X ray flaw detector is located the girth weld, then carry out the work of measurement of stepping down.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention; FIG. 2 is an enlarged view of section I of FIG. 1; FIG. 3 is an enlarged view of a portion II of FIG. 1; fig. 4 is an enlarged view of the view from the direction a of fig. 2.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.

A laser ranging and source aligning device for pipeline radiographic inspection comprises a walking trolley 1, an electric telescopic rod 2 is arranged in the middle of the top side of the walking trolley 1, a supporting plate 3 is arranged on the left side of the walking trolley 1, the left side of the supporting plate 3 is fixedly connected with the right side of a circular ring 4, a circular plate 5 is arranged in the circular ring 4, the upper, lower, front and rear sides of the periphery of the circular plate 5 are fixedly connected with the inner wall of the circular ring 4 through a tension spring 37 respectively, the middle of the left side of the circular plate 5 is fixedly connected with the right end of a transverse pipe 6, a coaxial sleeve pipe 7 is installed on the peripheral bearing of the transverse pipe 6, a coaxial sleeve 8 is installed on the peripheral bearing of the sleeve pipe 7, a first bevel gear 9 is fixedly installed on the periphery of the sleeve 7, the first bevel gear 9 is positioned in the sleeve 8, three through holes 10 which are uniformly and circumferentially distributed are, the second bevel gears 12 are respectively engaged with the first bevel gears 9, the peripheries of the lead screws 11 are respectively provided with an internal threaded pipe 13 in a threaded manner, the outer ends of the internal threaded pipes 13 are respectively and fixedly provided with a transverse plate 14, the inner sides of the transverse plate 14 are respectively and fixedly connected with the peripheries of the sleeves 8 through a plurality of telescopic rods 15, the outer sides of the transverse plates 14 are respectively provided with a row of a plurality of spherical grooves 20, smooth spheres 21 are respectively and movably arranged in the spherical grooves 20, and the smooth spheres 21 can only rotate in the corresponding spherical grooves 20; the left side of the coaxial inner ring gear 16 of the right side fixed connection of sleeve 8, the coaxial ring gear 17 of the right side fixed mounting of sleeve 7 periphery, ring gear 17's top is equipped with gear 18, gear 18 respectively with ring gear 17, the meshing cooperation of inner ring gear 16, the left end of the middle fixed connection motor 19 pivot on gear 18 right side, motor 19 and plectane 5 fixed connection, ring 4 left side top is equipped with vertical reflector panel 22, reflector panel 22 and plectane 5 fixed connection, violently the coaxial circumferential radiation X ray radiographic inspection machine 35 of left end fixed mounting of pipe 6. The invention has simple structure and ingenious conception, can correct the circumferential radiation X-ray flaw detector in the pipeline, leads the axial line of the circumferential radiation X-ray flaw detector and the axial line of the pipeline to be collinear, simultaneously leads the reflecting plate to be vertical to the axial line of the pipeline, is beneficial to the accuracy of laser ranging, can meet the actual requirement and is suitable for popularization. When the device is used, the device is placed in a pipeline, the walking trolley 1 can drive the device to move forwards or backwards in the pipeline, a laser range finder is used at a pipeline port to emit laser beams to a reflector 22, the distance A between the reflector 22 and the pipeline port is measured, in addition, the distance B between the right side of the reflector 22 and a circumferential radiation X-ray flaw detector 35 is measured, the distance C between the circumferential radiation X-ray flaw detector 35 and the pipeline port is measured until the distance C is equal to the distance between a circumferential welding seam and the pipeline port, at the moment, the circumferential radiation X-ray flaw detector 35 is positioned in the circumferential welding seam, then the electric telescopic rod 2 is extended until the upper end of the electric telescopic rod 2 is tightly contacted and matched with the top of the pipeline, the walking trolley 1 is fixed in the pipeline, then the motor 19 is electrified, the motor 19 rotates forwards, the rotating shaft of the motor 19 drives the gear 18 to rotate, the gear 18 drives the sleeve 8 to, the sleeve 8 drives the screw rod 11, the internal thread pipe 13, the transverse plate 14, the telescopic rod 15 and the smooth sphere 21 to revolve along the axis of the transverse pipe 6, meanwhile, the gear 18 drives the sleeve 7 to rotate reversely through the ring gear 17, the sleeve 7 drives the first helical gear 9 to rotate, the second helical gear 12 respectively rolls along the first helical gear 9, the second helical gear 12 respectively drives the corresponding screw rod 11 to rotate, the internal thread pipe 13 respectively drives the corresponding transverse plate 14 and the smooth sphere 21 to move outwards, the telescopic rod 15 is stretched until the outer side of the smooth sphere 21 is in contact fit with the inner wall of the pipeline, the smooth sphere 21 can roll along the inner wall of the pipeline, when the transverse pipe 6 is not collinear with the central line of the pipeline and the axis is parallel, the smooth sphere 21 on the same transverse plate 14 is firstly in contact fit with the transverse line at one position of the inner wall of the pipeline and moves outwards along with the smooth sphere 21, the transverse pipe, part of the tension springs 37 are further stretched, the other part of the tension springs 37 are shortened until the smooth spheres 21 on the outer sides of the three transverse plates 14 are in contact fit with the inner wall of the pipeline, at the moment, the transverse pipe 6 is collinear with the central line of the pipeline, and the circumferential radiation X-ray flaw detector 35 is collinear with the central line of the pipeline; when there is the contained angle in the axis of violently managing 6 and the axis of pipeline, diaphragm 14 outwards moves smooth spheroid 21 to the three diaphragm 14 outside all with the inner wall contact cooperation of pipeline, the right side of plectane 5 and the left side formation contained angle of backup pad 3, violently manage 6 and pipeline central line collineation this moment, reflector panel 22 is in vertical state, then measure the distance of pipeline mouth to reflector panel 22 through laser range finder, if this distance equals distance A, measure on next step, if this distance does not equal distance A, then control electric telescopic handle 2 and shorten, again control walking dolly 1 to advance or retreat simultaneously, smooth spheroid 21 can remove about the pipeline inner wall, it equals distance A to laser range finder measurement pipeline mouth to reflector panel 22, circumference radiation X ray inspection machine 35 is located the girth weld, then carry out the work of measurement of stepping down.

Specifically, as shown in the figure, the middle bearing on the left side of the top side of the walking trolley 1 in the embodiment is connected with the lower end of the lead screw 23, the nut 24 is installed on the periphery of the lead screw 23 in a threaded fit manner, the vertical plate 25 fixedly connected with the walking trolley 1 is arranged at the left end of the lead screw 23, the strip-shaped through groove 26 is formed in the left side of the vertical plate 25, the slide rod 27 is movably installed in the strip-shaped through groove 26, the slide rod 27 can only slide up and down along the strip-shaped through groove 26, one end of the slide rod 27 is fixedly connected with the nut 24. The screw 23 is screwed, the nut 24 drives the slide rod 27 to slide up and down along the strip-shaped through groove 26, and the slide rod 27 can drive the support plate 3 to move up and down, so that the position of the transverse pipe 6 can be adjusted up and down, and the axis of the transverse pipe 6 can be close to the axes of pipelines with different pipe diameters.

Specifically, as shown in the figure, the right side of walking dolly 1 top side be equipped with balancing weight 28, the bottom side of balancing weight 28 and the plane sliding contact cooperation of walking dolly 1 top side, screw through hole 29 is seted up to the centre of balancing weight 28, screw through hole 29 female screw thread cooperation installation horizontal lead screw 30, the coaxial axle bed 31 of right side bearing installation of horizontal lead screw 30 periphery, axle bed 31 and the top side fixed connection of walking dolly 1, the top side of axle bed 31 is to being connected with the lower extreme of electric telescopic handle 2, the coaxial third helical gear 32 of left end fixed mounting of horizontal lead screw 30, the coaxial fourth helical gear 33 of lower extreme fixed mounting of lead screw 23 periphery, third helical gear 32 and the meshing cooperation of fourth helical gear 33. Twist horizontal lead screw 30, horizontal lead screw 30 drives lead screw 23 through third helical gear 32, fourth helical gear 33 and rotates to make violently pipe 6 adjust from top to bottom, balancing weight 28 slides along the top side of walking dolly 1 from side to side simultaneously, and when violently managing 6 rebound, balancing weight 28 slides to the right, otherwise, violently when pipe 6 rebound, balancing weight 28 removes to the left, can reduce the focus, increases walking dolly 1's stability.

Further, as shown in the drawing, the circular plate 5 of the present embodiment is an iron plate, and a magnet plate 34 is fixedly attached to the right side of the support plate 3. The magnet plate 34 can generate suction force to the circular plate 5, so that the right side of the circular plate 5 is in contact fit with the left side of the support plate 3, the stability of the circular plate 5 can be increased, the circular plate 5 is prevented from shaking randomly, and when the stress angle of the circular plate 5 is changed, the right side of the circular plate 5 can be separated from the left side of the support plate 3 or form an included angle.

Further, as shown in the drawings, the traveling trolley 1 according to the embodiment is an electric remote control trolley. The walking trolley 1 can be controlled to advance or retreat in the pipeline through the remote control handle.

Further, as shown in the drawings, the left and right ends of the bottom side of the transverse tube 6 in the embodiment are respectively provided with through grooves 36. The wires connected to the circumferential radiation X-ray detector 35 can be routed through the cross tube 6, avoiding the wires from affecting the rotation of the cross plate 14.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.