CN117091026A - Pipeline inner wall crack detection device based on circumferential radiation - Google Patents

Pipeline inner wall crack detection device based on circumferential radiation Download PDF

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Publication number
CN117091026A
CN117091026A CN202311345565.9A CN202311345565A CN117091026A CN 117091026 A CN117091026 A CN 117091026A CN 202311345565 A CN202311345565 A CN 202311345565A CN 117091026 A CN117091026 A CN 117091026A
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CN
China
Prior art keywords
wall
seat
sleeve
annular
fixed
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Granted
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CN202311345565.9A
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Chinese (zh)
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CN117091026B (en
Inventor
夏成标
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Nantong Jinmao Explosion Proof Electrical Co ltd
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Nantong Jinmao Explosion Proof Electrical Co ltd
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Priority to CN202311345565.9A priority Critical patent/CN117091026B/en
Publication of CN117091026A publication Critical patent/CN117091026A/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
    • F16L55/28—Constructional aspects
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
    • F16L55/28—Constructional aspects
    • F16L55/30—Constructional aspects of the propulsion means, e.g. towed by cables
    • F16L55/32—Constructional aspects of the propulsion means, e.g. towed by cables being self-contained
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L2101/00—Uses or applications of pigs or moles
    • F16L2101/30—Inspecting, measuring or testing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/10—Different kinds of radiation or particles
    • G01N2223/101—Different kinds of radiation or particles electromagnetic radiation
    • G01N2223/1016—X-ray
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/60—Specific applications or type of materials
    • G01N2223/628—Specific applications or type of materials tubes, pipes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Biochemistry (AREA)
  • Analytical Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

The invention discloses a pipeline inner wall crack detection device based on circumferential radiation, and relates to the technical field of pipeline inner wall crack detection; the X-ray flaw detector comprises two symmetrically arranged end seats, wherein the end surfaces of the two end seats are in a spherical structure matched with each other, annular seats are arranged on the outer walls of the adjacent sides of the two end seats, and the same circumferential radiation X-ray flaw detector is arranged between the two annular seats through a telescopic frame body; the end seat is provided with a traveling mechanism, and the annular seat is provided with an auxiliary supporting mechanism; the travelling mechanism comprises: the mounting plate is arranged at the center of the end seat. According to the invention, the travelling mechanism is arranged, so that the mounting plate can be driven to translate based on the first driving component, and the connecting arm is further driven to change in angle, so that the positions of the rollers are adjusted, the distance between the rollers is increased or decreased, and the pipeline with different inner diameters is adapted; the travelling wheel assembly drives the device to travel, and crack detection is completed by using the circumferential radiation X-ray flaw detector.

Description

Pipeline inner wall crack detection device based on circumferential radiation
Technical Field
The invention relates to the technical field of pipeline inner wall crack detection, in particular to a pipeline inner wall crack detection device based on circumferential radiation.
Background
The crack detection of the inner wall of the pipeline is one of important guarantees for the safe operation of the pipeline. At present, common pipeline inner wall crack detection technologies include ultrasonic detection, electromagnetic ultrasonic detection, laser ultrasonic detection, X-ray detection, infrared detection and the like. Because the interior of the pipeline is relatively closed, the detection operation is relatively inconvenient.
Through searching, the patent with the Chinese patent application number of 201910747400.1 discloses a reducing pipeline crack detection device which comprises a travelling wheel, a steerable telescopic connecting rod, a telescopic pressure sensor system, a three-dimensional scanning system, a signal processing system, a power system, a circumferential radiation X-ray flaw detector, a hook, a wire and a shell. The three-dimensional scanning system is arranged on the left side of the shell, the upper part and the lower part of the shell are provided with steerable telescopic connecting rods through hinges, walking wheels are arranged on the steerable telescopic connecting rods, telescopic pressure sensor systems are arranged on the upper part and the lower part of the shell, and the circumferential radiation X-ray flaw detector device is arranged on the right side inside the shell. The left side of the inside of the shell is provided with a signal processing system, the side of the signal processing system is provided with a power system, and the left side and the right side of the shell are respectively provided with two hooks. The detection device in the above patent has the following disadvantages: although the utility model can meet certain use demands, the utility model only adopts the walking wheel and the telescopic connecting rod to support, the stability is poor in the moving process, and the round pipeline can not be well adapted.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a pipeline inner wall crack detection device based on circumferential radiation.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the pipeline inner wall crack detection device based on circumferential radiation comprises two symmetrically arranged end seats, wherein the end surfaces of the two end seats are in an adaptive spherical structure, annular seats are arranged on the outer wall of one side adjacent to the two end seats, and the same circumferential radiation X-ray flaw detector is arranged between the two annular seats through a telescopic frame body; the end seat is provided with a traveling mechanism, and the annular seat is provided with an auxiliary supporting mechanism;
wherein, running gear includes:
the mounting disc is arranged at the center of the end seat;
the first driving assembly is used for driving the mounting plate to translate;
one end of each connecting arm is hinged to the mounting plate, the plurality of connecting arms are circumferentially distributed, a through strip-shaped sliding cavity is formed in the side face of each connecting arm, and a first sleeve is arranged at the end of each connecting arm;
the end seat is provided with a through hole for the connecting arm to pass through, the cross rod is fixed at the inner side of the through hole, and the cross rod slides in the strip-shaped sliding cavity;
the travelling wheel assembly is arranged in the first sleeve, and the first driving assembly drives the travelling wheel assembly to realize position change when driving the mounting plate to translate;
wherein, auxiliary stay mechanism includes:
the annular bracket is fixed on one side of the annular seat, and the annular bracket is rotatably provided with an annular rotating seat;
one end of each elastic supporting arm is fixed on the circumferential outer wall of the annular rotating seat, the plurality of elastic supporting arms are distributed in a cyclone mode by taking the annular rotating seat as the center, and the annular seat is provided with a limiting opening for the elastic supporting arms to pass through;
the second driving assembly is used for driving the annular rotating seat to rotate;
and the auxiliary supporting component is arranged on the elastic supporting arm.
As a preferred embodiment of the present invention: the road wheel assembly includes:
one end of the first mounting rod is arranged in the first sleeve;
the roller is rotatably arranged at the end part of the first mounting rod;
and the roller motor is fixed on the first mounting rod, and the output end of the roller motor is connected with the shaft of the roller in a transmission way.
As a preferred embodiment of the present invention: the auxiliary support assembly includes:
the end part of the elastic supporting arm is provided with a second sleeve, and one end of the second mounting rod is arranged in the second sleeve;
the ball seat is integrally arranged at the other end of the second mounting rod;
and the sliding ball is movably arranged in the ball seat.
As a preferred embodiment of the present invention: the first mounting rod is detachably mounted in the first sleeve, the second mounting rod is detachably mounted in the second sleeve, the first mounting rod and the second mounting rod are adaptive in size, and fixing pieces for fixing the first mounting rod and the second mounting rod are arranged on the first sleeve and the second sleeve; the fixing member includes:
the fixing pin, the first sleeve, the second sleeve, the first mounting rod and the second mounting rod are provided with pin holes matched with the fixing pin;
the end part of the fixed pin is connected to the side wall of the first sleeve or the second sleeve through the first spring;
and the pull ring is fixed at the end part of the fixed pin.
As a preferred embodiment of the present invention: the first mounting rod is internally provided with a power module for supplying power to the roller motor and a wireless communication module for communication, and the end seat is internally provided with a control box for controlling the roller motor to work based on the wireless communication module.
As a preferred embodiment of the present invention: the telescopic frame body comprises:
one end of the first fixing frame is fixed on the outer wall of one side of the annular seat, and one end of the circumferential radiation X-ray flaw detector is arranged on the first fixing frame;
the second fixing frame is arranged on the circumferential radiation X-ray flaw detector;
the electric telescopic cylinder is fixed on the outer wall of one side of the other annular seat, and the output end of the electric telescopic cylinder is fixed on the second fixing frame;
the guide rod is fixed on the outer wall of one side of the annular seat and is connected with the inner wall of the second fixing frame in a sliding manner.
As a preferred embodiment of the present invention: the first drive assembly includes:
the first driving motor is fixed on the end seat;
one end of the threaded rod is in transmission connection with the output end of the first driving motor, and the threaded rod is connected to the inner wall of the mounting plate through threads;
the guide part is fixed in the end seat, and the mounting plate is connected to the outer wall of the guide part in a sliding way.
As a preferred embodiment of the present invention: the guide part includes:
the mounting frame is fixed on the inner side of the end seat;
and one end of the guide column is fixed on the mounting frame, and the mounting plate is slidably connected to the outer wall of the guide column.
As a preferred embodiment of the present invention: the second driving assembly includes:
the second driving motor is fixed on the annular seat;
the shaft of the driving gear is connected to the output end of the second driving motor in a transmission way, driven teeth distributed circumferentially are arranged on the outer wall of the annular rotating seat, and the driving gear is meshed with the driven teeth.
As a preferred embodiment of the present invention: the second sleeve is rotatably arranged at the end part of the elastic supporting arm through a shaft, a positioning seat is arranged on the side surface of the elastic supporting arm, a guide cylinder is fixed on the outer wall of one side of the second sleeve, a sliding column is slidably connected to the outer wall of the guide cylinder, the guide cylinder is of a hollow prismatic structure, the same second spring is arranged between the inner wall of one end of the sliding column and the inner wall of one end of the guide cylinder, and a positioning sheet is arranged on the outer wall of one end of the sliding column; the locating seat is provided with a plurality of circumferentially distributed locating grooves, and the locating pieces are clamped in the locating grooves.
The beneficial effects of the invention are as follows:
according to the invention, the travelling mechanism is arranged, so that the mounting plate can be driven to translate based on the first driving component, and the connecting arm is further driven to change in angle, so that the positions of the rollers are adjusted, the distance between the rollers is increased or decreased, and the pipeline with different inner diameters is adapted; the travelling wheel assembly drives the device to travel, and crack detection is completed by using the circumferential radiation X-ray flaw detector.
According to the invention, the auxiliary supporting mechanism is arranged, so that the annular rotating seat is driven to rotate based on the operation of the second driving assembly, and the posture of the elastic supporting arms is driven to change; through setting up auxiliary support subassembly, can play auxiliary support's purpose, the friction force can be reduced when supporting to the slide ball, and guarantee device marcing smoothly.
According to the invention, the fixing piece is arranged, and the first installation rod and the second installation rod are detachably connected, so that the installation positions of the traveling wheel assembly and the auxiliary support assembly can be adjusted according to actual conditions, when the traveling wheel assembly is installed in the second sleeve, the elastic support arm can be deformed to a certain extent, so that the condition of irregular inner diameter or uneven inner wall of a pipeline can be better adapted, and when the traveling wheel assembly is installed in the first sleeve, the pipeline with regular inner diameter size is better adapted; by adopting the scheme, the mounting structure can be flexibly adjusted to cope with different working environments.
According to the invention, through arranging the structures such as the positioning seat, the positioning sheet and the like, the positioning sheet can be separated from the positioning groove by traction of the positioning sheet under the cooperation of the deformation of the second spring, and the positioning sheet is clamped in the other positioning groove by rotating a certain angle, so that the angle of the second sleeve is adjusted.
Drawings
FIG. 1 is a schematic structural diagram of a crack detection device for the inner wall of a pipeline based on circumferential radiation;
FIG. 2 is a schematic view of another angle of a crack detection device for the inner wall of a pipeline based on circumferential radiation;
FIG. 3 is a schematic structural view of a second installation rod of the pipeline inner wall crack detection device based on circumferential radiation, which is provided by the invention, installed in a second sleeve;
fig. 4 is a schematic structural diagram of a second driving motor, a driving gear and driven teeth of the pipeline inner wall crack detection device based on circumferential radiation;
FIG. 5 is a schematic structural view of a second sleeve of a device for detecting cracks on an inner wall of a pipeline based on circumferential radiation;
FIG. 6 is a schematic structural view of a first mounting rod of a circumferential radiation-based pipe inner wall crack detection device according to the present invention mounted in a second sleeve;
FIG. 7 is a schematic diagram of a positioning seat and a sliding column cross section structure of a pipeline inner wall crack detection device based on circumferential radiation;
FIG. 8 is a schematic structural view of a mounting plate and a guide post of a pipeline inner wall crack detection device based on circumferential radiation;
fig. 9 is a schematic structural view of a connecting arm and a first mounting rod of a pipeline inner wall crack detection device based on circumferential radiation.
In the figure: the X-ray flaw detector comprises a 1 end seat, a 2 annular seat, a 3 ball seat, a 4 guide rod, a 5 sliding ball, a 6 elastic supporting arm, a 7 ball mask, an 8 electric telescopic cylinder, a 9-circumferential radiation X-ray flaw detector, a 10 second mounting rod, an 11 roller, a 12 first fixing frame, a 13 second fixing frame, a 14 second driving motor, a 15 driven tooth, a 16 limit opening, a 17 driving gear, a 18 control box, a 19 annular rotating seat, a 20 mounting plate, a 21 annular bracket, a 22 second sleeve, a 23 first spring, a 24 pull ring, a 25 positioning sheet, a 26 positioning groove, a 27 positioning seat, a 28 fixing pin, a 29 first mounting rod, a 30 sliding column, a 31 second spring, a 32 guide cylinder, a 33 first driving motor, a 34 connecting arm, a 35 threaded rod, a 36 cross rod, a 37 guide column, a 38 mounting frame, a 39 bar sliding cavity, a 40 roller motor, a 41 through opening and a 42 first sleeve.
Detailed Description
The technical scheme of the patent is further described in detail below with reference to the specific embodiments.
Embodiments of the present patent are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present patent and are not to be construed as limiting the present patent.
Example 1:
the device for detecting cracks on the inner wall of the pipeline based on circumferential radiation comprises two symmetrically arranged end seats (1), wherein the end surfaces of the two end seats (1) are in a spherical structure in a matched mode, annular seats (2) are arranged on the outer wall of one side, adjacent to the two end seats (1), of the two annular seats (2), and the same circumferential radiation X-ray flaw detector (9) is arranged between the two annular seats (2) through a telescopic frame body; the end seat (1) is provided with a traveling mechanism, and the annular seat (2) is provided with an auxiliary supporting mechanism;
wherein, running gear includes:
the mounting plate (20) is arranged at the center of the end seat (1);
a first drive assembly for driving translation of the mounting plate (20);
the connecting arms (34) are hinged to the mounting plate (20) at one end, the connecting arms (34) are circumferentially distributed, a through strip-shaped sliding cavity (39) is formed in the side face of each connecting arm (34), and a first sleeve (42) is arranged at the end of each connecting arm (34);
the cross rod (36) is provided with a through hole (41) for the connecting arm (34) to pass through, the cross rod (36) is fixed at the inner side of the through hole (41), and the cross rod (36) slides in the strip-shaped sliding cavity (39);
the travelling wheel assembly is arranged in the first sleeve (42), and the first driving assembly drives the travelling wheel assembly to realize position change when the first driving assembly drives the mounting disc (20) to translate;
wherein, auxiliary stay mechanism includes:
the annular bracket (21), the annular bracket (21) is fixed on one side of the annular seat (2), and the annular bracket (21) is rotatably provided with an annular rotating seat (19);
the elastic support arms (6), one end of each elastic support arm (6) is fixed on the circumferential outer wall of the annular rotating seat (19), the plurality of elastic support arms (6) are distributed in a cyclone mode by taking the annular rotating seat (19) as the center, and the annular seat (2) is provided with a limiting opening (16) for the elastic support arms (6) to pass through;
the second driving assembly is used for driving the annular rotating seat (19) to rotate;
the auxiliary supporting component is arranged on the elastic supporting arm (6);
through the arrangement of the travelling mechanism, the mounting plate (20) can be driven to translate based on the first driving component, and then the connecting arm (34) is driven to change in angle, so that the positions of the rollers (11) are adjusted, the distance between the rollers (11) is increased or decreased, and the device is suitable for pipelines with different inner diameters; the travelling wheel assembly drives the device to travel, and crack detection is completed by using a circumferential radiation X-ray flaw detector (9);
through setting up auxiliary support mechanism, can drive annular rotation seat (19) and rotate, and then drive the gesture of elastic support arm (6) and change, because a plurality of elastic support arms (6) use annular rotation seat (19) to be the whirlwind and distribute as the center, when annular rotation seat (19) rotate, elastic support arm (6) wears to change in spacing one end of spacing mouth (16) apart from annular rotation seat (19) interval, leads to auxiliary support assembly's supporting ability and supporting position to change to adapt to the pipeline of different internal diameters.
In order to facilitate the movement of the driving device; as shown in fig. 9, the road wheel assembly includes:
a first mounting rod (29), one end of the first mounting rod (29) is mounted in the first sleeve (42);
the roller (11), the roller (11) is rotatably installed at the end part of the first installation rod (29);
the roller motor (40), the roller motor (40) is fixed in on the first installation pole (29), and the output of roller motor (40) is connected with the axle transmission of gyro wheel (11).
To facilitate auxiliary support; as shown in fig. 5, the auxiliary supporting assembly includes:
the end part of the elastic supporting arm (6) is provided with a second sleeve (22), and one end of the second mounting rod (10) is arranged in the second sleeve (22);
the ball seat (3) is integrally arranged at the other end of the second installation rod (10);
the sliding ball (5) is movably arranged in the ball seat (3);
through setting up auxiliary support subassembly, can play auxiliary support's purpose, slide ball (5) can reduce frictional force when supporting, guarantee device marcing smoothly.
In order to facilitate the disassembly and the installation; as shown in fig. 5, the first mounting rod (29) is detachably mounted in the first sleeve (42), the second mounting rod (10) is detachably mounted in the second sleeve (22), the first mounting rod (29) and the second mounting rod (10) are adapted in size, and fixing pieces for fixing the first mounting rod (29) and the second mounting rod (10) are arranged on the first sleeve (42) and the second sleeve (22); the fixing member includes:
the fixing pin (28), the first sleeve (42), the second sleeve (22), the first mounting rod (29) and the second mounting rod (10) are provided with pin holes matched with the fixing pin (28);
the end part of the fixed pin (28) is connected to the side wall of the first sleeve (42) or the second sleeve (22) through the first spring (23);
a pull ring (24), wherein the pull ring (24) is fixed at the end of the fixed pin (28);
by arranging the fixing piece, the first mounting rod (29) and the second mounting rod (10) are detachably connected, so that the mounting positions of the traveling wheel assembly and the auxiliary supporting assembly can be adjusted according to actual conditions, when the traveling wheel assembly is mounted in the second sleeve (22), the elastic supporting arm (6) can be deformed to a certain extent, and therefore the condition that the inner diameter is irregular or the inner wall of the pipeline is uneven can be better adapted, and when the traveling wheel assembly is mounted in the first sleeve (42), the traveling wheel assembly is more adapted to the pipeline with the regular inner diameter;
in addition, the auxiliary supporting component and the walking wheel component can be matched and installed on the elastic supporting arm (6) to balance walking and supporting capacity; in summary, by adopting the scheme, the mounting structure can be flexibly adjusted to cope with different working environments.
To improve the practicality; as shown in fig. 4 and 9, the first mounting rod (29) is internally provided with a power module for supplying power to the roller motor (40) and a wireless communication module for communication, the end seat (1) is internally provided with a control box (18), and the control box (18) controls the roller motor (40) to work based on the wireless communication module;
the power module and the wireless communication module belong to a mature technology, and are not described in detail herein.
Wherein, scalable support body includes:
one end of the first fixing frame (12) is fixed on the outer wall of one side of the annular seat (2), and one end of the circumferential radiation X-ray flaw detector (9) is arranged on the first fixing frame (12);
the second fixing frame (13), the second fixing frame (13) is installed on the circumferential radiation X-ray flaw detector (9);
the electric telescopic cylinder (8), the electric telescopic cylinder (8) is fixed on one side outer wall of the other annular seat (2), the output end of the electric telescopic cylinder (8) is fixed on the second fixing frame (13);
the guide rod (4), the guide rod (4) is fixed in annular seat (2) one side outer wall, and guide rod (4) sliding connection is in second mount (13) inner wall.
To facilitate translation of the drive mounting plate (20); as shown in fig. 4 and 8, the first driving assembly includes:
the first driving motor (33), the first driving motor (33) is fixed on the end seat (1);
the threaded rod (35), one end of the threaded rod (35) is connected with the output end of the first driving motor (33) in a transmission way, and the threaded rod (35) is connected with the inner wall of the mounting disc (20) through threads;
the guide part is fixed in the end seat (1), and the mounting plate (20) is connected to the outer wall of the guide part in a sliding way;
through setting up first drive assembly, can work based on first driving motor (33), under the direction of guide part guide, drive mounting plate (20) translation, and then reach the purpose of adjusting linking arm (34) gesture.
To improve reliability; as shown in fig. 8, the guide part includes:
the mounting frame (38), the mounting frame (38) is fixed on the inner side of the end seat (1);
the guide post (37), one end of the guide post (37) is fixed on the mounting frame (38), and the mounting plate (20) is connected to the outer wall of the guide post (37) in a sliding way;
through setting up the guide part, can carry out spacingly to mounting disc (20), prevent that it from taking place deflection on the angle, promoted the reliability.
In order to facilitate the rotation of the annular rotating seat (19); as shown in fig. 3, 4 and 6, the second driving assembly includes:
the second driving motor (14), the second driving motor (14) is fixed on the annular seat (2);
the driving gear (17), the shaft transmission of the driving gear (17) is connected to the output end of the second driving motor (14), the outer wall of the annular rotating seat (19) is provided with driven teeth (15) distributed circumferentially, and the driving gear (17) is meshed with the driven teeth (15);
through setting up the second drive assembly, can be based on the work of second drive assembly, drive gear (17) and rotate, and then under drive gear (17) and driven tooth (15) transmission, drive annular rotation seat (19) rotation.
To improve the practicality; as shown in fig. 8 and 9, a spherical cover (7) is fixed to the side surface of the end portion of the first mounting rod (29), the spherical cover (7) is of a bowl-shaped structure, and a roller motor (40) is arranged in the spherical cover (7).
Example 2:
a device for detecting cracks on the inner wall of a pipeline based on circumferential radiation, as shown in fig. 5 and 7, in order to facilitate the adjustment of the angle of the second sleeve (22); the present example was modified on the basis of example 1 as follows: the second sleeve (22) is rotatably arranged at the end part of the elastic supporting arm (6) through a shaft, a positioning seat (27) is arranged on the side surface of the elastic supporting arm (6), a guide cylinder (32) is fixed on the outer wall of one side of the second sleeve (22), a sliding column (30) is slidably connected to the outer wall of the guide cylinder (32), the guide cylinder (32) is of a hollow prismatic structure, the same second spring (31) is arranged between the inner wall of one end of the sliding column (30) and the inner wall of one end of the guide cylinder (32), and a positioning sheet (25) is arranged on the outer wall of one end of the sliding column (30); a plurality of circumferentially distributed positioning grooves (26) are formed in the positioning seat (27), and the positioning sheets (25) are clamped in the positioning grooves (26);
through setting up structures such as positioning seat (27), spacer (25), can be through traction spacer (25), under the cooperation of second spring (31) deformation, make spacer (25) break away from constant head tank (26) to rotate certain angle, make spacer (25) joint in another constant head tank (26), thereby realize the regulation to second sleeve (22) angle.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims (10)

1. The pipeline inner wall crack detection device based on circumferential radiation is characterized by comprising two symmetrically arranged end seats (1), wherein the end surfaces of the two end seats (1) are in a spherical structure matched with each other, an annular seat (2) is arranged on the outer wall of one side adjacent to the two end seats (1), and the same circumferential radiation X-ray flaw detector (9) is arranged between the two annular seats (2) through a telescopic frame body; the end seat (1) is provided with a traveling mechanism, and the annular seat (2) is provided with an auxiliary supporting mechanism;
wherein, running gear includes:
the mounting plate (20) is arranged at the center of the end seat (1);
a first drive assembly for driving translation of the mounting plate (20);
the connecting arms (34) are hinged to the mounting plate (20) at one end, the connecting arms (34) are circumferentially distributed, a through strip-shaped sliding cavity (39) is formed in the side face of each connecting arm (34), and a first sleeve (42) is arranged at the end of each connecting arm (34);
the cross rod (36) is provided with a through hole (41) for the connecting arm (34) to pass through, the cross rod (36) is fixed at the inner side of the through hole (41), and the cross rod (36) slides in the strip-shaped sliding cavity (39);
the travelling wheel assembly is arranged in the first sleeve (42), and the first driving assembly drives the travelling wheel assembly to realize position change when the first driving assembly drives the mounting disc (20) to translate;
wherein, auxiliary stay mechanism includes:
the annular bracket (21), the annular bracket (21) is fixed on one side of the annular seat (2), and the annular bracket (21) is rotatably provided with an annular rotating seat (19);
the elastic support arms (6), one end of each elastic support arm (6) is fixed on the circumferential outer wall of the annular rotating seat (19), the plurality of elastic support arms (6) are distributed in a cyclone mode by taking the annular rotating seat (19) as the center, and the annular seat (2) is provided with a limiting opening (16) for the elastic support arms (6) to pass through;
the second driving assembly is used for driving the annular rotating seat (19) to rotate;
and the auxiliary supporting component is arranged on the elastic supporting arm (6).
2. The circumferential radiation-based pipe inner wall crack detection device of claim 1, wherein the road wheel assembly comprises:
a first mounting rod (29), one end of the first mounting rod (29) is mounted in the first sleeve (42);
the roller (11), the roller (11) is rotatably installed at the end part of the first installation rod (29);
the roller motor (40), the roller motor (40) is fixed in on the first installation pole (29), and the output of roller motor (40) is connected with the axle transmission of gyro wheel (11).
3. The apparatus for detecting cracks on an inner wall of a pipe based on circumferential radiation according to claim 2, wherein the auxiliary support assembly comprises:
the end part of the elastic supporting arm (6) is provided with a second sleeve (22), and one end of the second mounting rod (10) is arranged in the second sleeve (22);
the ball seat (3) is integrally arranged at the other end of the second installation rod (10);
and the sliding ball (5) is movably arranged in the ball seat (3).
4. A pipeline inner wall crack detection device based on circumferential radiation as claimed in claim 3, characterized in that the first mounting rod (29) is detachably mounted in the first sleeve (42), the second mounting rod (10) is detachably mounted in the second sleeve (22), the first mounting rod (29) and the second mounting rod (10) are adapted in size, and fixing pieces for fixing the first mounting rod (29) and the second mounting rod (10) are arranged on the first sleeve (42) and the second sleeve (22); the fixing member includes:
the fixing pin (28), the first sleeve (42), the second sleeve (22), the first mounting rod (29) and the second mounting rod (10) are provided with pin holes matched with the fixing pin (28);
the end part of the fixed pin (28) is connected to the side wall of the first sleeve (42) or the second sleeve (22) through the first spring (23);
and a pull ring (24), wherein the pull ring (24) is fixed to the end of the fixing pin (28).
5. The pipeline inner wall crack detection device based on circumferential radiation according to claim 4, wherein a power module for supplying power to the roller motor (40) and a wireless communication module for communication are arranged in the first mounting rod (29), a control box (18) is arranged in the end seat (1), and the control box (18) controls the roller motor (40) to work based on the wireless communication module.
6. A circumferential radiation based pipe inner wall crack detection device as defined in any one of claims 1-5, wherein the telescoping boom body comprises:
one end of the first fixing frame (12) is fixed on the outer wall of one side of the annular seat (2), and one end of the circumferential radiation X-ray flaw detector (9) is arranged on the first fixing frame (12);
the second fixing frame (13), the second fixing frame (13) is installed on the circumferential radiation X-ray flaw detector (9);
the electric telescopic cylinder (8), the electric telescopic cylinder (8) is fixed on one side outer wall of the other annular seat (2), the output end of the electric telescopic cylinder (8) is fixed on the second fixing frame (13);
the guide rod (4), the guide rod (4) is fixed in annular seat (2) one side outer wall, and guide rod (4) sliding connection is in second mount (13) inner wall.
7. A circumferential radiation based pipe inner wall crack detection device as defined in any one of claims 1-5, wherein the first drive assembly comprises:
the first driving motor (33), the first driving motor (33) is fixed on the end seat (1);
the threaded rod (35), one end of the threaded rod (35) is connected with the output end of the first driving motor (33) in a transmission way, and the threaded rod (35) is connected with the inner wall of the mounting disc (20) through threads;
the guide part is fixed in the end seat (1), and the mounting plate (20) is connected to the outer wall of the guide part in a sliding way.
8. The apparatus for detecting cracks on an inner wall of a pipe based on circumferential radiation according to claim 7, wherein the guide portion comprises:
the mounting frame (38), the mounting frame (38) is fixed on the inner side of the end seat (1);
and one end of the guide column (37) is fixed on the mounting frame (38), and the mounting plate (20) is connected to the outer wall of the guide column (37) in a sliding way.
9. A circumferential radiation based pipe inner wall crack detection device as defined in any one of claims 1-5, wherein the second drive assembly comprises:
the second driving motor (14), the second driving motor (14) is fixed on the annular seat (2);
the driving gear (17), the axle transmission of driving gear (17) is connected in the output of second driving motor (14), and annular rotation seat (19) outer wall is provided with driven tooth (15) of circumference distribution, and driving gear (17) and driven tooth (15) mesh mutually.
10. The device for detecting cracks on the inner wall of a pipeline based on circumferential radiation according to claim 4, wherein the second sleeve (22) is rotatably installed at the end part of the elastic supporting arm (6) through a shaft, a positioning seat (27) is arranged on the side surface of the elastic supporting arm (6), a guide cylinder (32) is fixed on the outer wall of one side of the second sleeve (22), a sliding column (30) is slidably connected to the outer wall of the guide cylinder (32), the guide cylinder (32) is of a hollow prismatic structure, the same second spring (31) is installed between the inner wall of one end of the sliding column (30) and the inner wall of one end of the guide cylinder (32), and a positioning sheet (25) is arranged on the outer wall of one end of the sliding column (30); a plurality of circumferentially distributed positioning grooves (26) are formed in the positioning seat (27), and the positioning sheets (25) are clamped in the positioning grooves (26).
CN202311345565.9A 2023-10-18 2023-10-18 Pipeline inner wall crack detection device based on circumferential radiation Active CN117091026B (en)

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