CN111059408A

CN111059408A - Wheel set defectoscope of adjustable running gear wheel base

Info

Publication number: CN111059408A
Application number: CN201911223392.7A
Authority: CN
Inventors: 不公告发明人
Original assignee: Xiangshui Zhengxiang Construction Development Co Ltd
Current assignee: Xiangshui Zhengxiang Construction Development Co Ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-04-24

Abstract

The invention relates to the field of flaw detectors, in particular to a wheel set flaw detector capable of adjusting the wheel track of a travelling mechanism, which comprises a flaw detection mechanism, an adjusting mechanism, two travelling mechanisms, a cleaning mechanism and a driving mechanism, wherein the two travelling mechanisms are arranged on the wheel set flaw detector; the two ends of the flaw detection mechanism are oppositely provided with the travelling mechanisms, the two travelling mechanisms are opened and closed according to the opening and closing principle of the umbrella ribs, the two travelling mechanisms are contracted, the integral structure is favorably placed inside a pipeline to be detected, the travelling mechanisms have the telescopic function and are loosened after being placed inside the pipeline to be detected, the end parts of the travelling mechanisms are abutted against the pipeline, the wheel track can be quickly adjusted according to pipelines with different diameters, the integral structure is guided, and the phenomenon that the integral structure inclines when travelling to influence the detection of the pipeline is avoided; when the whole mechanism is placed into a pipeline to be detected, the pipeline rotates clockwise, the expansion of the two walking mechanisms is realized, the operation is simple, the expansion of the two walking mechanisms is controlled simultaneously, and the adjustment time of the wheel track is saved.

Description

Wheel set defectoscope of adjustable running gear wheel base

Technical Field

The invention relates to the field of flaw detectors, in particular to a wheel set flaw detector capable of adjusting the wheel track of a travelling mechanism.

Background

The flaw detector is generally nondestructive, and is specially used for industrial departments such as shipbuilding, petroleum, chemical engineering, machinery, aerospace, transportation, building and the like to inspect the processing and welding quality of materials and parts such as ship hulls, pipelines, high-pressure vessels, boilers, airplanes, vehicles, bridges and the like, and display the surface and internal defects of parts processed by the materials and welding so as to evaluate the quality of products. Showing the location, shape and size of the discontinuity. The method can detect the defects of superfine microcracks, hairlines, white spots, folds, inclusions and the like on the surface of the material, has high detection sensitivity, can visually display the position, the shape, the size and the severity of the defects, and has good repeatability for detecting the defects. The method is widely applied to flaw detection of pipes, bars, sections, welding parts, machined parts and forged pieces, and particularly plays a unique role in the fixed inspection of pressure vessels and bearings.

However, when the pipeline that needs to detect is being detected to the defectoscope, directly put into the pipeline that needs to detect inside the defectoscope body, if when detecting the pipeline of different diameters, the walking wheel of defectoscope all is in the interior bottom of pipeline, the walking wheel of defectoscope is difficult to adjust the wheel base according to the pipeline of different diameters, the defectoscope easily takes place the slope when detecting the pipeline of different diameters, lead to the defectoscope in the inside stagnation or the turnover of pipeline, the detection effect to the pipeline is influenced, and detect through holistic removal cooperation defectoscope when present defectoscope detects the pipeline, meet the pipeline of dust, influence the detection effect of defectoscope.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a wheel set flaw detector capable of adjusting the wheel track of a travelling mechanism.

The technical scheme adopted by the invention for solving the technical problems is as follows: a wheel pair flaw detector capable of adjusting the wheel track of a travelling mechanism comprises a flaw detection mechanism, an adjusting mechanism, two travelling mechanisms, a cleaning mechanism and a driving mechanism; be used for realizing detecting a flaw the inner wall of pipeline the running gear that is used for realizing overall structure walking is all installed at running gear's both ends, is located the mechanism top of detecting a flaw the one end of running gear is installed actuating mechanism, two cross-sections are tubaeform structure the running gear install relatively in the both ends of detecting a flaw the mechanism, the internally mounted of mechanism of detecting a flaw has adjusting mechanism, two adjusting mechanism's back of the body end of carrying on the back respectively with two running gear's tip fixed connection, adjusting mechanism's top is fixed in the outer wall of mechanism of detecting a flaw is located the mechanism both ends of detecting a flaw the pipeline inner wall that needs to detect is installed to running gear's tip equidistance and is cleaned the mechanism of cleaning.

The inspection machine comprises a flaw detector body, a fixing seat, a connecting column, a handle and a spongy cushion, wherein the opposite end of the travelling mechanism is fixedly connected with the pipe to be detected, the two ends of the flaw detector body are arranged at the two ends of the flaw detector body, the travelling mechanism passes through the fixing seat, the two ends of the flaw detector body are arranged at the top of the flaw detector body, the connecting column is arranged at the top of the connecting column, the connecting column is welded with the cross-section rectangular structure, the handle is of an arc-shaped structure, and the spongy cushion is sleeved on the surface of the handle.

Specifically, the travelling mechanism comprises a sliding shell, a support, mounting seats, supporting rods, wheel seats, guide wheels, sliding rods, sliding sleeves and damping springs, the mounting seats are welded at the bottom of the flaw detector body and at the top of the fixing seat oppositely, the two opposite ends of the mounting seats are connected with the support with a T-shaped cross section in an annular array equidistance rotating mode, one ends of the plurality of supports departing from the mounting seats are connected with the sliding shell in a sliding mode, the damping springs are mounted inside the sliding shell, one ends of the plurality of sliding shells departing from the support are welded with the wheel seats with U-shaped side sections, the inner parts of the plurality of wheel seats are connected with the guide wheels in a rotating mode, the sliding rods with T-shaped cross sections are welded at the centers of the two back ends of the mounting seats perpendicularly, and the side walls of the two sliding rods are connected with the sliding sleeves in a sliding mode, two the equal equidistance of lateral wall of sliding sleeve rotates and is connected with the bracing piece, a plurality of deviating from sliding sleeve one end the tip of bracing piece respectively with a plurality of rotate between the lateral wall of support and be connected.

Specifically, running gear still includes reset spring, two the lateral wall of slide bar all twines reset spring.

Specifically, the adjusting mechanism comprises a rotary table, a gear, racks, sliding strips, a sliding chute and a fixing screw, the racks with L-shaped cross sections are welded on the side walls of the two sliding sleeves in a staggered manner, the sliding strips with rectangular side surfaces are welded on two side surfaces of the two racks, the sliding strips and the racks extend into the flaw detector body, and the two sliding strips positioned on the side wall of the rack slide in the two sliding grooves on the inner wall of the flaw detector body, the gear meshed with the two racks is rotatably connected at the inner center of the flaw detector body, the two racks are staggered relative to the gear, the side wall of the flaw detector body is rotationally connected with the rotary disc, one end of the rotary disc is welded with the gear in the flaw detector body, the surface of the rotary disc is in threaded connection with the fixing screw which is abutted against the flaw detector body.

Specifically, clean the mechanism and include brush cleaner, fixed axle, pivot, pressure spring, projection and recess, it is a plurality of the inside of wheel seat is passed through the pivot is rotated and is connected with the leading wheel, and is a plurality of the one end block of pivot is connected with the fixed axle, and is a plurality of the surface of fixed axle has all been seted up the recess, a plurality of deviating from leading wheel one end the tip equidistance welding of fixed axle has the brush cleaner, and is a plurality of the equal sliding connection in inside of pivot with the recess block, bottom are the arc structure the projection, the internally mounted of pivot have with the projection is contradicted the pressure spring.

Specifically, actuating mechanism includes motor, battery and motor frame, is located one of them at the mechanism top of detecting a flaw the lateral wall welding of wheel seat has the motor frame, install at the top of motor frame the motor, the one end and one of them of motor the tip welding of pivot, install the bottom of motor frame with electric connection between the motor the battery.

The invention has the beneficial effects that:

(1) according to the wheel set flaw detector capable of adjusting the wheel track of the travelling mechanism, the travelling mechanisms with horn-shaped sections are oppositely arranged at two ends of the flaw detection mechanism, the two travelling mechanisms are opened and closed according to the opening and closing principle of umbrella ribs, the two travelling mechanisms are contracted before the inner diameter of a pipeline to be detected is determined, the integral structure can be conveniently placed in the pipeline to be detected, the travelling mechanisms have the telescopic function and are released after being placed in the pipeline to be detected, the end parts of the travelling mechanisms are abutted against the pipeline, the wheel track can be quickly adjusted according to the pipelines with different diameters, the integral structure is guided, and the phenomenon that the integral structure inclines during travelling to influence the detection of the pipeline is avoided; namely: when examining the pipeline, promote the sliding housing to the lateral wall direction of two slide bars according to the principle of opening and shutting of rib, two sliding sleeve back of the body removal of moving on the back have been realized, contained angle between support and the real bracing piece diminishes so, further realization is a plurality of sliding housing contractions that horn structure, and then can stop the extrusion to the sliding housing when the distance between the relative sliding housing is less than the biggest internal diameter of the pipeline that needs to detect, realization on the one hand is according to the pipeline adjustment wheel base of different diameters, the in-process of having avoided the defectoscope body at the walking takes place the slope, the influence is to the detection of pipeline, on the other hand has realized after loosening a plurality of sliding housings that the sliding housing is popped out by damping spring, so a plurality of leading wheels conflict with the inner wall of pipeline, the support and the direction to overall structure have been realized.

(2) According to the wheel set flaw detector capable of adjusting the wheel track of the travelling mechanism, the adjusting mechanism fixed with the two travelling mechanisms is arranged in the flaw detection mechanism, when the whole mechanism is placed into a pipeline to be detected, the whole mechanism rotates clockwise, the two travelling mechanisms are expanded, the operation is simple, the expansion of the two travelling mechanisms is controlled simultaneously, and the adjusting time of the wheel track is saved; namely: after the inner diameter of the pipeline to be detected is determined, fixing screws on the side surfaces of the rotary discs are loosened, the rotary discs on the side walls of the flaw detector body are rotated anticlockwise, the gear in the flaw detector body also rotates anticlockwise, further, the two racks move back to back, then the two racks pull the two sliding sleeves to move, further, the plurality of supporting rods contract to drive the plurality of sliding rods to move towards the side wall direction of the sliding rods, further, the plurality of sliding shells contract like umbrella ribs, the two racks are driven by the gears to simultaneously move oppositely and back to back, the time for adjusting the wheel track is saved, sliding strips in sliding connection with sliding grooves are welded on the side surfaces of the two racks, the limit when the racks slide is realized, the racks are prevented from deviating, the rotary discs are rotated clockwise after the integral structure is placed in the pipeline, and the two racks move relatively, and then realized two racks with two sliding sleeve relative movement, further realized that two sets of bracing pieces are similar to the rib and equally by strutting, and then strut a plurality of supports and sliding housing, it is fixed through the fixed screw with the carousel when the inner wall of leading wheel and pipeline is contradicted, the shrink damping spring that is located the sliding housing inside can contract the sliding housing when the walking wheel meets the barrier, avoid overall structure to stop to influence and detect, reset spring can assist the sliding housing cover to reset when the sliding sleeve moves along with the back of the body mutually, do benefit to the shrink of a plurality of sliding housings and supports.

(3) According to the wheel pair flaw detector capable of adjusting the wheel track of the travelling mechanism, the end parts of the two travelling mechanisms are all connected with the cleaning mechanism in the east direction, the travelling mechanism moves the whole structure after the driving mechanism is connected with a power supply, and further the two groups of cleaning mechanisms are driven to rotate in the rotating process of the travelling mechanism, so that the cleaning mechanism can clean dust and sundries on the inner wall of a pipeline to be detected while the travelling mechanism rotates, the detection effect on the pipeline is facilitated, and because one travelling mechanism is fixed with the driving mechanism, the two cleaning mechanisms can rotate at the same speed when the travelling mechanism rotates, and the phenomenon that the whole mechanism slips is avoided; namely: clean the mechanism and drive the pivot when the walking wheel rotates and rotate, further realization is located the rotation of the brush cleaner of pivot one end, and then realized the dust of the pipeline inner wall that will detect when the defectoscope body walks, debris are cleared up, avoid dust debris to influence the detection of defectoscope body, the inside of sweeping hand through fixed axle block in pivot, realized the inside pressure spring shrink of pivot when the fixed axle block, the inside recess of fixed axle is blocked to the projection block, convenient dismantlement, do benefit to and change the brush cleaner.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic overall structure diagram of a wheel pair flaw detector with an adjustable running gear wheel track according to a preferred embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of the overall structure shown in FIG. 1;

FIG. 3 is an enlarged view of the structure of the portion B shown in FIG. 2;

FIG. 4 is an enlarged view of the part A shown in FIG. 2;

FIG. 5 is a schematic view of a connection structure between the traveling mechanism and the cleaning mechanism shown in FIG. 1;

fig. 6 is an enlarged view of the structure of the portion C shown in fig. 5.

In the figure: 1. the flaw detection device comprises a flaw detection mechanism, 11, a flaw detector body, 12, a fixed seat, 13, a connecting column, 14, a handle, 15, a sponge pad, 2, an adjusting mechanism, 21, a rotary disc, 22, a gear, 23, a rack, 24, a slide bar, 25, a sliding chute, 26, a fixing screw, 3, a traveling mechanism, 31, a sliding shell, 32, a support, 33, a mounting seat, 34, a supporting rod, 35, a wheel seat, 36, a guide wheel, 37, a sliding rod, 38, a sliding sleeve, 39, a return spring, 39a, a damping spring, 4, a cleaning mechanism, 41, a cleaning brush, 42, a fixed shaft, 43, a rotating shaft, 44, a pressure spring, 45, a convex column, 46, a groove, 5, a driving mechanism, 51, a motor, 52, a storage battery, 53 and a motor frame.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-5, the wheel set flaw detector capable of adjusting the wheel track of the traveling mechanism according to the present invention includes a flaw detection mechanism 1, an adjusting mechanism 2, two traveling mechanisms 3, a cleaning mechanism 4 and a driving mechanism 5; be used for realizing detecting a flaw the inner wall of pipeline the running gear 3 is located 1 top of detecting a flaw the one end of running gear 3 is installed actuating mechanism 5, two cross-sections are horn structure the running gear 3 install relatively in the both ends of detecting a flaw mechanism 1, the internally mounted of detecting a flaw mechanism 1 has adjustment mechanism 2, two the back of the body end of adjustment mechanism 2 respectively with two the tip fixed connection of running gear 3, the top of adjustment mechanism 2 is fixed in the outer wall of detecting a flaw mechanism 1 is located 1 both ends of detecting a flaw mechanism 3's tip equidistance is installed and is cleaned the pipeline inner wall that needs to detect cleaning mechanism 4.

Specifically, the flaw detection mechanism 1 includes a flaw detector body 11, a fixing base 12, a connecting column 13, a handle 14 and a foam-rubber cushion 15, opposite ends of two traveling mechanisms 3 are fixedly connected to two ends of the flaw detector body 11 for detecting a pipeline, one group of the traveling mechanisms 3 are installed at two ends of the flaw detector body 11 through the fixing base 12, the connecting column 13 is installed at the top of the flaw detector body 11, the handles 14 with cross sections in rectangular structures are welded at the tops of the two connecting columns 13, corners of the handles 14 are in arc-shaped structures, the foam-rubber cushion 15 is sleeved on the surface of the handle 14, the flaw detector body 11 is horizontally placed on the surface of a workbench when the pipeline is detected, and the inclination of the whole structure can be realized by holding the handles 14 when the flaw detector body 11 is moved, the equidistant cover in surface of handle 14 is equipped with foam-rubber cushion 15 has increased the comfort level when using, is located at the top of defectoscope body 11 fixing base 12 does benefit to right running gear 3's installation.

Specifically, the traveling mechanism 3 includes a sliding shell 31, a support 32, a mounting seat 33, a support rod 34, a wheel seat 35, a guide wheel 36, a sliding rod 37, a sliding sleeve 38 and a damping spring 39a, the bottom of the flaw detector body 11 and the top of the fixing seat 12 are welded with the mounting seat 33, two opposite ends of the mounting seat 33 are connected with the support 32 with a cross section of a "T" shape structure in an equidistant rotating manner in an annular array manner, a plurality of the supports 32 are connected with the sliding shell 31 in an equal sliding manner at one end deviating from the mounting seat 33, the damping spring 39a is installed inside the sliding shell 31, a plurality of the sliding shell 31 is welded with the wheel seat 35 with a side of a "U" shape structure at one end deviating from the support 32, a plurality of the wheel seat 35 is connected with the guide wheel 36 in an internal rotating manner, the sliding rod 37 with a cross section of a "T" shape structure is vertically welded at the center of the back end of the mounting seat, the side walls of the two sliding rods 37 are slidably connected with the sliding sleeves 38 which are hollow cylindrical structures, the side walls of the two sliding sleeves 38 are rotationally connected with the supporting rods 34 at equal intervals, a plurality of end portions of the supporting rods 34 which are deviated from one ends of the sliding sleeves 38 are respectively rotationally connected with the side walls of the plurality of supports 32, when a pipeline is detected, the sliding shells 31 are pushed towards the side walls of the two sliding rods 37 according to the opening and closing principle of umbrella ribs, so that the two sliding sleeves 38 move back and forth, an included angle between each support 32 and the corresponding real supporting rod 34 is reduced, further, the sliding shells 31 which are in a horn-shaped structure are contracted, and then when the distance between the opposite sliding shells 31 is smaller than the maximum inner diameter of the pipeline to be detected, the sliding shells 31 can be stopped to be extruded, on one hand, the wheel distance can be adjusted according to the pipelines with different diameters, the defect that the flaw detector body 11 inclines in the walking process to influence the detection of the pipeline is avoided, and on the other hand, after the sliding shells 31 are loosened, the sliding shells 31 are popped up by the damping springs 39a, so that the guide wheels 36 are abutted against the inner wall of the pipeline, and the support and the guide of the whole structure are realized.

Specifically, running gear 3 still includes reset spring 39, two slide bar 37's lateral wall all twines reset spring 39 when sliding sleeve 38 moves away from the other side of the body the reset spring 39 can assist sliding shell cover 38 resets, does benefit to a plurality of sliding shell 31 reaches the shrink of support 32.

Specifically, the adjusting mechanism 2 includes a rotary table 21, a gear 22, a rack 23, two sliding bars 24, a sliding groove 25 and a fixing screw 26, the two sliding sleeves 38 are welded with the rack 23 having an L-shaped cross section on the side wall in a staggered manner, the two sliding bars 24 having a rectangular structure on the side surface are welded on both side surfaces of the rack 23, the sliding bars 24 and the rack 23 extend to the inside of the flaw detector body 11, the two sliding bars 24 located on the side wall of the rack 23 slide in the two sliding grooves 25 on the inner wall of the flaw detector body 11, the gear 22 engaged with the two racks 23 is rotatably connected to the center of the inside of the flaw detector body 11, the two racks 23 are arranged in a staggered manner with respect to the gear 22, the side wall of the flaw detector body 11 is rotatably connected with the rotary table 21, one end of the rotary table 21 is welded with the gear 22 inside the flaw detector body 11, the surface of the rotary table 21 is in threaded connection with the fixing screw 26 abutting against the flaw detector body 11, after the inner diameter of a pipeline to be detected is determined, the fixing screw 26 on the side surface of the rotary table 21 is loosened, the rotary table 21 positioned on the side wall of the flaw detector body 11 is rotated anticlockwise, the gear 22 positioned inside the flaw detector body 11 is rotated anticlockwise, then the two racks 23 move back to back, then the two racks 23 pull the two sliding sleeves 38 to move, further the supporting rods 34 are contracted, the supporting rods 34 are contracted to drive the plurality of the middle rods 32 to move towards the side wall direction of the sliding rods 37, further the sliding shells 31 are contracted like umbrella ribs, the two racks 23 are driven by the gear 22 to move oppositely and back to back, and the time for adjusting the wheel pitch is saved, lie in two rack 23 side welding have with spout 25 sliding connection the draw runner 24 has realized rack 22 is spacing during sliding, has avoided rack 22 off tracking will after putting into the inside of pipeline with overall structure the carousel 21 clockwise turning has realized two rack 23 relative movement, and then has realized two rack 23 will two sliding sleeve 38 relative movement, further realized two sets of bracing piece 34 similar rib is strutted equally, and then will a plurality of support 32 reaches sliding shell 32 struts, works as when leading wheel 36 contradicts with the inner wall of pipeline will carousel 21 passes through fixed screw 26 is fixed, is located the inside shrink damping spring 39a of sliding shell 31 can walking wheel 36 will when meetting the barrier sliding shell 31 shrink avoids overall structure to stop to influence the detection.

Specifically, the cleaning mechanism 4 includes a cleaning brush 41, a fixed shaft 42, a rotating shaft 43, a pressure spring 44, a convex column 45 and a groove 46, the inside of the wheel seat 35 is connected with the guide wheel 36 through the rotating shaft 43 in a rotating manner, one end of the rotating shaft 43 is connected with the fixed shaft 42 in a clamping manner, the groove 46 is formed on the surface of the fixed shaft 42, a plurality of end portions of the fixed shaft 42 deviating from one end of the guide wheel 36 are welded with the cleaning brush 41 at equal intervals, the inside of the rotating shaft 43 is connected with the convex column 45 which is clamped with the groove 46 in a sliding manner and has an arc-shaped bottom, the pressure spring 44 is mounted inside the rotating shaft 43 and is abutted against the convex column 45, the rotating wheel 36 drives the rotating shaft 43 to rotate while rotating, and the rotation of the cleaning brush 41 at one end of the rotating shaft 43 is further realized, and then realized will detect when the defectoscope body 11 walks dust, debris of pipeline inner wall clear up, avoid dust debris to influence the detection of defectoscope body 11, the sweeper 41 passes through fixed axle 42 block in the inside of pivot 43 fixed axle 42 has realized during the block the pivot 43 is inside the compression spring 44 contracts, projection 45 block arrives fixed axle 42 is inside recess 46, convenient dismantlement does benefit to the change brush cleaner 41.

Specifically, actuating mechanism 5 includes motor 51, battery 52 and motor frame 53, is located one of them at flaw detection mechanism 1 top wheel base 35's lateral wall welding has motor frame 53, install at the top of motor frame 53 motor 51, one end and one of them of motor 51 the tip welding of pivot 43, install the bottom of motor frame 53 with electric connection between the motor 51 battery 52, will after putting into the inside of detecting the pipeline with overall structure motor 51 switch on power has realized pivot 42 drives one of them leading wheel 36 rotates, and further through this leading wheel 36 drives overall structure at the inside walking of pipeline, has realized the detection to the pipeline.

When the flaw detector is used, firstly, when the flaw detector body 11 is used for detecting flaws, the flaw detector body 11 is horizontally placed on the surface of a workbench, when the flaw detector body 11 is moved, the handle 14 is held to realize the inclination of the whole structure, the sponge pads 15 are sleeved on the surface of the handle 14 at equal intervals to increase the comfort level when the flaw detector is used, when the flaws are detected on the pipeline, the sliding shells 31 are pushed towards the side wall direction of the two sliding rods 37 according to the opening and closing principle of the umbrella ribs to realize the back-to-back movement of the two sliding sleeves 38, so that the included angle between the support 32 and the solid support rod 34 is reduced, further, the contraction of the plurality of the sliding shells 31 in the horn-shaped structure is realized, further, when the distance between the opposite sliding shells 31 is smaller than the maximum inner diameter of the pipeline to be detected, the extrusion of the sliding shells 31 can be stopped, on the one hand, the wheel distance is adjusted according to, the detection of the pipeline is influenced, on the other hand, after the sliding shells 31 are loosened, the sliding shells 31 are popped up by the damping springs 39a, and then the guide wheels 36 are abutted against the inner wall of the pipeline, so that the support and the guide of the whole structure are realized; then, the specific operation is as follows: after the inner diameter of the pipeline to be detected is determined, the fixing screws 26 on the side surface of the rotary table 21 are loosened, the rotary table 21 on the side wall of the flaw detector body 11 is rotated anticlockwise, the gear 22 in the flaw detector body 11 is rotated anticlockwise, the two racks 23 move back to back, the two racks 23 pull the two sliding sleeves 38 to move, the plurality of supporting rods 34 are further contracted, the plurality of supporting rods 34 are contracted to drive the plurality of sliding sleeves 32 to move towards the side wall of the sliding rod 37, the plurality of sliding shells 31 are contracted like umbrella ribs, the two racks 23 are driven by the gear 22 to simultaneously move oppositely and back to back, the time for adjusting the wheel pitch is saved, the sliding strips 24 which are connected with the sliding grooves 25 in a sliding mode are welded on the side surfaces of the two racks 23, the limit of the racks 22 during sliding is realized, the deviation of the racks 22 is avoided, the rotary table 21 is rotated clockwise after the integral structure is placed in the pipeline, the two racks 23 move relatively, so that the two sliding sleeves 38 move relatively by the two racks 23, further, the two groups of supporting rods 34 are unfolded like umbrella ribs, the plurality of supports 32 and the sliding shells 32 are unfolded, when the guide wheels 36 are abutted against the inner wall of the pipeline, the rotary table 21 is fixed through the fixing screws 26, the contraction damping springs 39a positioned in the sliding shells 31 can contract the sliding shells 31 when the travelling wheels 36 encounter obstacles, the integral structure is prevented from stopping to influence detection, the reset springs 39 can assist the sliding shell sleeves 38 to reset when the sliding sleeves 38 move back to back, and the contraction of the plurality of sliding shells 31 and the supports 32 is facilitated; finally, after the integral structure is placed inside the detection pipeline, the motor 51 is powered on, so that the rotating shaft 42 drives one of the guide wheels 36 to rotate, the integral structure is further driven to walk inside the pipeline through the guide wheels 36, the pipeline detection is realized, the rotating shaft 43 is driven to rotate while the walking wheels 36 rotate, the cleaning brush 41 located at one end of the rotating shaft 43 is further realized to rotate, further, the cleaning of dust and sundries on the inner wall of the detected pipeline is realized when the flaw detector body 11 walks, the dust and sundries are prevented from influencing the detection of the flaw detector body 11, the cleaning hand 41 is clamped inside the rotating shaft 43 through the fixed shaft 42, the compression spring 44 inside the rotating shaft 43 is contracted when the fixed shaft 42 is clamped, the convex columns 45 are clamped to the grooves 46 inside the fixed shaft 42, the disassembly is convenient, and the cleaning brush 41 can be replaced conveniently.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a wheel pair defectoscope of adjustable running gear wheel base which characterized in that: comprises a flaw detection mechanism (1), an adjusting mechanism (2), two traveling mechanisms (3), a cleaning mechanism (4) and a driving mechanism (5); the travelling mechanisms (3) used for realizing the travelling of the whole structure are arranged at the two ends of the flaw detection mechanism (1) used for realizing the flaw detection of the inner wall of the pipeline, the driving mechanism (5) is arranged at one end of the travelling mechanism (3) positioned at the top of the flaw detection mechanism (1), the travelling mechanisms (3) with two sections in horn-shaped structures are oppositely arranged at the two ends of the flaw detection mechanism (1), the adjusting mechanisms (2) are arranged in the flaw detection mechanism (1), the back ends of the two adjusting mechanisms (2) are respectively and fixedly connected with the end parts of the two travelling mechanisms (3), the top of adjustment mechanism (2) is fixed in the outer wall of mechanism of detecting a flaw (1), is located detect a flaw mechanism (1) both ends the tip equidistance of running gear (3) is installed and is cleaned the pipeline inner wall that needs to detect clean mechanism (4).

2. The wheel set flaw detector capable of adjusting the wheel track of the travelling mechanism according to claim 1, wherein: flaw detection mechanism (1) is including defectoscope body (11), fixing base (12), spliced pole (13), handle (14) and foam-rubber cushion (15), two the opposite end fixed connection of running gear (3) is used for realizing detecting the pipeline the both ends of defectoscope body (11), one of them is a set of running gear (3) are passed through fixing base (12) install in the both ends of defectoscope body (11), install relatively at the top of defectoscope body (11) spliced pole (13), two the top welding of spliced pole (13) has transversal rectangle structure of personally submitting handle (14), the corner of handle (14) is the arc structure, the surface cover of handle (14) is equipped with foam-rubber cushion (15).

3. The wheel set flaw detector capable of adjusting the wheel track of the travelling mechanism according to claim 2, wherein: the walking mechanism (3) comprises a sliding shell (31), a support (32), a mounting seat (33), a supporting rod (34), a wheel seat (35), a guide wheel (36), a sliding rod (37), a sliding sleeve (38) and a damping spring (39 a), wherein the mounting seat (33) is welded at the bottom of the flaw detector body (11) and the top of the fixing seat (12) relatively, two opposite ends of the mounting seat (33) are connected with the support (32) with a T-shaped structure in a rotating mode in an annular array equidistance mode, one end, deviating from the mounting seat (33), of the support (32) is connected with the sliding shell (31) in a sliding mode, the damping spring (39 a) is installed inside the sliding shell (31), and the wheel seat (35) with a U-shaped structure on the side is welded at one end, deviating from the support (32), of the sliding shell (31), a plurality of the inside of wheel seat (35) is rotated and is connected with leading wheel (36), two perpendicular welding of center department of mount pad (33) looks back end has the cross-section to be "T" shape structure slide bar (37), two the lateral wall sliding connection of slide bar (37) has and is hollow cylindrical structure sliding sleeve (38), two the equal equidistance of lateral wall of sliding sleeve (38) is rotated and is connected with bracing piece (34), a plurality of deviating from sliding sleeve (38) one end the tip of bracing piece (34) respectively with a plurality of rotate between the lateral wall of support (32) and be connected.

4. The wheel set flaw detector capable of adjusting the wheel track of the travelling mechanism according to claim 3, wherein: the walking mechanism (3) further comprises a return spring (39), and the side walls of the two sliding rods (37) are wound with the return spring (39).

5. The wheel set flaw detector capable of adjusting the wheel track of the travelling mechanism according to claim 4, wherein: adjustment mechanism (2) includes carousel (21), gear (22), rack (23), draw runner (24), spout (25) and fixed screw (26), two the crisscross welding of lateral wall of sliding sleeve (38) has rack (23) that the cross-section is "L" shape structure, two the side of rack (23) all welds slide (24) that the side is the rectangle structure, slide (24) and rack (23) extend to the inside of defectoscope body (11), and two are located slide (24) of rack (23) lateral wall all slide in two of defectoscope body (11) inner wall the inside of spout (25), the inside center department of defectoscope body (11) rotate be connected with two mesh between rack (23) gear (22), two rack (23) about gear (22) crisscross arrangement, the lateral wall of defectoscope body (11) rotates and is connected with carousel (21), the one end of carousel (21) with inside of defectoscope body (11) weld between gear (22), the surperficial threaded connection of carousel (21) have with the conflict of defectoscope body (11) set screw (26).

6. The wheel set flaw detector capable of adjusting the wheel track of the travelling mechanism according to claim 3, wherein: cleaning mechanism (4) is including cleaning brush (41), fixed axle (42), pivot (43), pressure spring (44), projection (45) and recess (46), and is a plurality of the inside of wheel seat (35) is passed through pivot (43) rotates and is connected with leading wheel (36), and is a plurality of the one end block of pivot (43) is connected with fixed axle (42), a plurality of the surface of fixed axle (42) has all been seted up recess (46), a plurality of deviating from leading wheel (36) one end the tip equidistance welding of fixed axle (42) has cleaning brush (41), a plurality of the equal sliding connection in inside of pivot (43) with recess (46) block, bottom are the arc structure projection (45), the internally mounted of pivot (43) with projection (45) are contradicted pressure spring (44).

7. The wheel set flaw detector capable of adjusting the wheel track of the travelling mechanism according to claim 6, wherein: actuating mechanism (5) include motor (51), battery (52) and motor frame (53), are located one of them at flaw detection mechanism (1) top the lateral wall welding of wheel seat (35) has motor frame (53), install at the top of motor frame (53) motor (51), the one end and one of them of motor (51) the tip welding of pivot (43), install the bottom of motor frame (53) with electric connection between motor (51) battery (52).