CN108279268A - Pipe detection device - Google Patents

Pipe detection device Download PDF

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Publication number
CN108279268A
CN108279268A CN201810326156.7A CN201810326156A CN108279268A CN 108279268 A CN108279268 A CN 108279268A CN 201810326156 A CN201810326156 A CN 201810326156A CN 108279268 A CN108279268 A CN 108279268A
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China
Prior art keywords
walker
magnet
rack
wheel
detection
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CN201810326156.7A
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Chinese (zh)
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CN108279268B (en
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赵弘
张潭林
杨晓丽
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China University of Petroleum Beijing
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China University of Petroleum Beijing
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Priority to CN201810326156.7A priority Critical patent/CN108279268B/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G01N27/83Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
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  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

The present invention provides a kind of pipe detection device, including:Rack, the first walker, the second walker, regulating device and detection device;First walker and the second walker connects along the setting perpendicular to the direction interval of traffic direction, the second walker with rack, and the first walker is connect by regulating device with rack, regulating device be used for the first walker of adjusting between the second walker at a distance from;The multiple magnet-wheels of setting that first walker and the second walker upper edge traffic direction are spaced;Detection device is used to detect the defect on pipeline;The distance between the first walker and the second walker can be adjusted by regulating device, and then adjust the distance between the magnet-wheel on magnet-wheel and the second walker on the first walker, so that pipe detection device can detect the pipeline of different-diameter, the versatility of pipe detection device is enhanced.

Description

Pipe detection device
Technical field
The present invention relates to pipeline inspection technology field more particularly to a kind of pipe detection devices.
Background technology
In the production process of oil and natural gas, come transfer oil or natural gas frequently with pipeline;Pipeline generally by Either steel pipe constitutes pipeline during installation or transport to multiple cast iron pipes being welded together, and is easy and the external world Object collides with, and then makes to form hole on pipe side wall or the defects of crackle;When oil or natural gas flow in pipeline When, oil or natural gas can be flowed out by fault location, cause pipeline leakage;Therefore right how after cast iron pipe or penstock installation Pipeline is detected, and to be repaired to fault location, becomes the hot spot of research.
In the prior art, pipeline is detected frequently with pipe detection device, pipe detection device includes rack, magnetic Wheel, detection magnet, Hall element and warning device;Rack is rectangular, and cross bar is provided on the upper surface of rack;Magnet-wheel is four A, four magnet-wheels are spindle rotationally arranged in the angle of rack, and magnet-wheel is mainly made of permanent magnet;Detect magnet and Hall element It is arranged on the downside of rack, Hall element is electrically connected with warning device.In use, being arranged rack on the surface of pipeline On, and making magnet-wheel and tube contacts, the attraction between magnet-wheel and pipeline makes magnet-wheel be attached on pipeline;Staff pushes Cross bar, and then pipe detection device is made to be moved on the side wall of pipeline;At the same time, detection magnet can be by detection magnet lower part Tube wall magnetization, and then make that there is in tube wall magnetic field;When having defect on pipeline, magnetic field leaks to the outer of pipeline by fault location Portion, and then Hall element detects the magnetic field on the outside of pipeline, and then detection signal is input to warning device, so that warning device Send out alarm.
However, in the prior art, according to the difference of pipeline transmission capacity, the diameter of pipeline is often different;But each magnet-wheel The distance between it is certain so that pipe detection device can only detect the pipeline of same diameter, poor universality.
Invention content
In view of this, the present invention provides a kind of pipe detection device, to solve in the prior art, according to pipeline transmission capacity Difference, the diameter of pipeline is often different;But the distance between each magnet-wheel is certain so that pipe detection device can only detect together The technical issues of pipeline of one diameter, poor universality.
The present invention provides a kind of pipe detection devices to include:Rack, the first walker, the second walker, regulating device And defect detecting device;First walker and second walker are along setting perpendicular to the direction interval of traffic direction It sets, second walker is connect with the rack, and first walker is connect by the regulating device with the rack, The regulating device for adjust first walker between second walker at a distance from;First walker and institute It states the second walker upper edge traffic direction and is arranged at intervals with multiple magnet-wheels;The defect detecting device is for detecting on pipeline Defect.
Pipe detection device as described above, it is preferable that the regulating device includes:Drive screw rod and tumbler; The driving screw rod is rotatably connect with the rack, is provided with the first driving screw thread on the driving screw rod, and described first The first driving nut with the first driving screw-thread fit is provided on walker;The tumbler and the driving screw rod Driving end be sequentially connected;Central axis is provided in the rack on the sliding rail of traffic direction, first walker It is provided with the first sliding groove, the first sliding groove is set on the sliding rail.
Pipe detection device as described above, it is preferable that be provided with second sliding slot on second walker;Described second Sliding slot is set on the sliding rail;The driving screw rod includes first segment and second segment, and the first driving screw thread setting is the On one section, the second driving screw thread, the rotation that the first driving screw thread drives screw thread with described second are provided on the second segment To opposite;Second walker is equipped with the second driving nut with the second driving screw-thread fit.
Pipe detection device as described above, it is preferable that the pipe detection device further includes locking device, the locking Device is connect with the dog point of the driving screw rod, for adjusting between first walker and second walker The drive screw turns are prevented after distance.
Pipe detection device as described above, it is preferable that the locking device includes:Electromagnet, rotatable lamella and brake Piece;The rotatable lamella is connect with the rear-end transmission of the driving screw rod, and the brake block is connect with the rack;The electromagnet It is arranged in the rack, for attracting the brake block.
Pipe detection device as described above, it is preferable that the pipe detection device further includes first driving means, described First driving means are sequentially connected with the magnet-wheel on first walker.
Pipe detection device as described above, it is preferable that the pipe detection device further includes the second driving device, described Second driving device is sequentially connected with the magnet-wheel on second walker.
Pipe detection device as described above, it is preferable that the pipe detection device further includes that controller and position are surveyed Device is measured, the controller is electrically connected with the defect detecting device and the position-measurement device respectively;Institute's position measurement Device is used to detect residing pipeline location.
Pipe detection device as described above, it is preferable that the position-measurement device includes the first detection wheel, the second detection Wheel, the first encoder and second encoder, first detection wheel are sequentially connected with first encoder, and are arranged in institute Front end of the rack along traffic direction is stated, the axis of first detection wheel is arranged perpendicular to the traffic direction;Second inspection Measuring wheel is sequentially connected with the second encoder, and is arranged in the rack along the rear end of traffic direction, second detection wheel Axis be parallel to traffic direction setting;First encoder and the second encoder are electrically connected with the controller.
Pipe detection device as described above, it is preferable that the defect detecting device includes the first detection magnet, the second inspection Magnet and Hall element are surveyed, the first detection magnet and the second detection magnet are along the setting at traffic direction interval, institute Hall element setting is stated between the first detection magnet and the second detection magnet.
Pipe detection device provided by the invention makes the first walker and the second walker be separately positioned in rack, and It is arranged along perpendicular to traffic direction interval;Second walker is connect with rack, passes through regulating device between the first walker and rack Connection;The multiple magnet-wheels of setting that first walker and the second walker upper edge traffic direction are spaced;Defect detecting device is used for Detect the defect on pipeline;The distance between the first walker and the second walker can be adjusted by regulating device, and then is adjusted The distance between the magnet-wheel on the magnet-wheel and the second walker on the first walker is saved, so that pipe detection device can detect difference The pipeline of diameter enhances the versatility of pipe detection device.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair Some bright embodiments for those of ordinary skill in the art without creative efforts, can be with root Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram of pipe detection device provided in an embodiment of the present invention;
Fig. 2 is the connection diagram of the first walker and the second walker and rack in Fig. 1;
Fig. 3 is the bottom schematic view of pipe detection device provided in an embodiment of the present invention;
Fig. 4 is the structural schematic diagram of the first detection wheel in Fig. 3;
Fig. 5 is the cooperation schematic diagram of first driving means and magnet-wheel in Fig. 3;
Fig. 6 is the structural schematic diagram that screw rod is driven in Fig. 1.
Reference sign:
10, rack;101, the first walker;
102, the second walker;103, screw rod is driven;
104, tumbler;105, locking device;
106, sliding rail;107, magnet-wheel;
108, button panel;1031, the first driving screw thread;
1032, the second driving screw thread;1081, button;
20, first driving means;30, the second driving device;
40, position-measurement device;401, the first detection wheel;
402, the first encoder;403, the second detection wheel;
404, second encoder;405, the first vertical rail;
406, the first tensioning spring;4011, the first turntable;
4012, the first rotating roller;4013, the second turntable;
4014, the second rotating roller;50, defect detecting device;
501, the first detection magnet;502, the second detection magnet;
503, Hall element.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art The every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
In the present invention, unless otherwise specific regulation, the terms such as term " installation ", " connected ", " connection ", " fixation " are answered It is interpreted broadly, can also be dismountable connection for example, it may be being fixedly connected, or be integrally formed, can be that machinery connects It connects, can also be to be electrically connected or can communicate each other;It can be directly connected, can also be indirectly connected with by intermediate medium, it can To be the interaction relationship of connection or two elements inside two elements, unless otherwise restricted clearly.For ability For the those of ordinary skill in domain, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
Fig. 1 is the structural schematic diagram of pipe detection device provided in an embodiment of the present invention;Fig. 2 is the first walker in Fig. 1 With the connection diagram of the second walker and rack;Fig. 3 is that the bottom of pipe detection device provided in an embodiment of the present invention is illustrated Figure;Fig. 4 is the structural schematic diagram of the first detection wheel in Fig. 3;Fig. 5 is the cooperation schematic diagram of first driving means and magnet-wheel in Fig. 3; Fig. 6 is the structural schematic diagram that screw rod is driven in Fig. 1.
Please refer to Fig. 1-Fig. 6.The present embodiment provides a kind of pipe detection devices, including:Rack 10, the first walker 101, Second walker 102, regulating device and defect detecting device 50;First walker 101 and the second walker 102 along perpendicular to The setting at the direction interval of traffic direction, the first walker 101 are connect by regulating device with rack 10, and regulating device is for adjusting Save the first walker 101 between the second walker 102 at a distance from;Second walker 102 is connect with rack 10;First walker 101 and 102 upper edge traffic direction of the second walker be arranged at intervals with multiple magnet-wheels 107;Defect detecting device 50 is for detecting Defect on pipeline.
In the present embodiment, traffic direction is the direction for being parallel to conduit axis.
Rack 10 can be the tablet of rectangle or the frame that rack 10 is rectangle in the present embodiment;Certainly, in other realities Apply in example rack 10 can also the regular shapes such as rounded, triangle, or other irregular shapes.
Second walker 102 is plate-like, and the second walker 102 can be parallel to the setting of rack 10 or the second walker 102 are a certain included angle with rack 10.Second walker 102 can be connected by welding or bolted mode with rack 10 It connects or the second walker 102 is integrally formed by way of casting with rack 10.Second walker, 102 upper edge traffic direction The multiple magnet-wheels 107 of setting at interval, and each magnet-wheel 107 is rotatably connect with the second walker 102.Wherein, magnet-wheel 107 It is mainly made of magnet, after magnet-wheel 107 contacts pipeline, to make magnet-wheel 107 attach by the gravitation between magnet and pipeline On pipe side wall, in case pipe detection device on pipeline by falling.It preferably, can be in the second walker 102 along traffic direction Both ends a magnet-wheel 107 is respectively set;Certainly, magnet-wheel 107 can also more than two, such as:Three, four etc., correspondingly, Magnet-wheel 107 along traffic direction interval setting on the second walker 102.
The structure of first walker 101 can be identical as the structure of the second walker 102, the first walker 101 and rack Connected by regulating device between 10, regulating device can there are many, as long as can adjust the first walker 101 and second walking The distance between frame 102;Such as:Regulating device includes:Adjust cylinder and guide post, the central axis of guide post in Traffic direction is arranged, and guide post is connect with rack 10, and pilot hole is provided on the first walker 101, and guide post, which is threaded through, to be led Into hole;The cylinder body for adjusting cylinder is connect with rack 10, and the piston rod for adjusting cylinder is connect with the first walker 101, and is adjusted The central axis of cylinder is arranged in traffic direction.When work, driving piston rod from stretching out in cylinder body or to cylinder body contract, And then the first walker 101 is driven to move to the second walker 102 or moved to away from the direction of the second walker 102, into And change the distance between the first walker 101 and the second walker 102.
Preferably, the first walker 101 can be arranged in parallel with rack 10 or the first walker 101 and rack between be in Certain angle.Angle in the present embodiment between the first walker 101 and rack 10 is acute angle, at the same the second walker 102 with Angle between rack 10 is also acute angle, so as to when pipe detection device is placed on pipeline, the side of each magnet-wheel 107 and pipe The tube wall in road comes into full contact with.
In the present embodiment defect detecting device 50 can there are many, as long as being capable of detecting when the crack on pipeline, hole etc. Defect;Such as:Defect detecting device 50 may include detection electromagnet, Magnetic Sensor and warning device;Detect electromagnetism Iron and Magnetic Sensor are arranged on the lower surface in rack 10 towards pipeline, and are spaced setting, and Magnetic Sensor is connect with warning device; When work, detection electromagnet is powered, and then generates magnetic field so that the pipeline of detection electromagnet lower part is magnetized, tool inside pipeline There is magnetic field;If having defect on pipeline, magnetic field can be leaked to the outside of pipeline by fault location, and then be received by Magnetic Sensor, magnetic Sensor generates alarm signal, and then warning device is made to send out alarm, to prompt staff, on the pipeline of Magnetic Sensor lower part With defect.
The use process of pipe detection device provided in this embodiment is:Staff is by rack 10, the first walker 101 And second walker 102 be placed on pipeline, and each magnet-wheel 107 is made to be contacted with the side wall of pipeline, pushes pipeline inspection later Device is surveyed, each magnet-wheel 107 rotates on the side wall of pipeline, so that pipe detection device moves on the side wall of pipeline;It is same with this When, defect detecting device 50 is detected the side wall of pipeline, to realize the detection to pipeline.Before the use or detecting When the pipeline of other calibers, the distance between the first walker 101 and the second walker 102 are adjusted by regulating device, in turn Change the distance between the magnet-wheel 107 on the magnet-wheel 107 and the second walker 102 on the first walker 101, so that each magnet-wheel 107 It can be come into full contact with detected pipe side wall;Pipe detection device can detect the pipeline of different-diameter.
Pipe detection device provided in this embodiment makes the first walker 101 and the second walker 102 be separately positioned on machine On frame 10, and it is arranged along perpendicular to traffic direction interval;Second walker 102 is connect with rack 10, the first walker 101 and machine It is connected by regulating device between frame 10;The setting that first walker 101 and 102 upper edge traffic direction of the second walker are spaced is more A magnet-wheel 107;Defect detecting device 50 is used to detect the defect on pipeline;The first walker can be adjusted by regulating device 101 and second the distance between the walker 102, and then adjust the magnet-wheel 107 and the second walker 102 on the first walker 101 On magnet-wheel 107 between distance enhance pipe detection device so that pipe detection device can detect the pipeline of different-diameter Versatility.
With continued reference to Fig. 1, Fig. 2 and Fig. 6.Specifically, regulating device includes:Drive screw rod 103 and tumbler 104;Driving screw rod 103 is rotatably connect with rack 10, is driven and is provided with the first driving screw thread 1031 on screw rod 103, and first The the first driving nut coordinated with the first driving screw thread 1031 is provided on walker 101;Tumbler 104 and driving screw rod 103 driving end connection, for driving driving screw rod 103 to rotate;Central axis is provided in rack 10 in traffic direction Sliding rail 106 is provided with the first sliding groove on first walker 101, and the first sliding groove is set on sliding rail 106.Spiral shell is driven by rotation Bar 103, and then the movement of the first walker 101 is driven, by controlling the angle of drive screw 103, it can be achieved that the first row Distance between frame 101 and the second walker 102 is walked to accurately control.
Driving screw rod 103 is rotatably connect with rack 10;Preferably, it is provided with the first company what rack 10 was spaced upwards It is respectively arranged with the first axis hole and the second axis hole on fishplate bar and the second connecting plate, the first connecting plate and the second connecting plate, drives spiral shell Bar 103 is threaded through in the first axis hole and the second axis hole;What is be spaced on driving screw rod 103 offers first annular backstop slot and the Two backstop slots, and first annular backstop slot and the second backstop slot are located at the both sides of the first connecting plate, stop first annular It is folded with the first baffle ring and the second baffle ring, the first baffle ring and the second baffle ring respectively in retaining groove and the second annular stop slot It is folded in the both sides of the first connecting plate, and then prevents driving screw rod 103 along being parallel to the direction of axis in the first axis hole and second It is moved in axis hole.
Preferably, the first rolling bearing and the second rolling bearing are respectively arranged in the first axis hole and the second axis hole, the The inner ring of one rolling bearing and the second rolling bearing is connect with driving screw rod 103, to reduce rubbing when driving screw rod 103 rotates Wipe power.
It is further preferred that further including handspike, the both ends of handspike connect backboard with the first connecting plate and second respectively It disembarks one end connection of frame, by handspike movement pipeline detection device, to be convenient for the transport of pipe detection device.
In the present embodiment, tumbler 104 can there are many, as long as ensure tumbler 104 can drive driving screw rod 103 rotations;Such as:Tumbler 104 may include rotary electric machine, and the main shaft of rotary electric machine passes through shaft coupling and driving spiral shell The front end of bar 103 connects, and drives driving screw rod 103 to rotate by rotary electric machine;Further, rotary electric machine is stepper motor, The number of the drive signal of stepper motor is inputted by control, and then driving 103 rotational angle of screw rod is accurately controlled.It is preferred that Ground, tumbler 104 can also include rotating arm, rotating arm perpendicular to driving screw rod 103 axis setting, and with driving screw rod 103 front end is sequentially connected, and drives driving screw rod 103 to rotate by reversing rotating arm, adjusts more convenient.
With continued reference to Fig. 1 and Fig. 2.It is provided with second sliding slot on second walker 102;Second sliding slot is set in sliding rail 106 On;It includes first segment and second segment to drive screw rod 103, and the first driving screw thread 1031 is arranged on first segment, is arranged on second segment There are the second driving screw thread 1032, the first driving screw thread 1031 oppositely oriented with the second driving screw thread 1032;Second walker 102 It is equipped with the second driving nut coordinated with the second driving screw thread 1032.Drive screw rod 103 rotate when, the first walker 101 It is moved in the opposite direction with the second walker 102, the first walker 101 and the second walker 102 are mobile, it can be achieved that right simultaneously The quick adjusting of distance between first walker 101 and the second walker 102.
Preferably, sliding rail 106 is the linear guide, and sliding rail 106 is connect with rack 10 by bolted connection;Accordingly , the first sliding groove and second sliding slot coordinate with the linear guide respectively.
It is further preferred that sliding rail 106 be two, two sliding rails 106 along traffic direction interval setting in rack 10; Correspondingly, the first sliding groove there are two the settings being spaced on the first walker 101, the setting being spaced on the second walker 102 There are two second sliding slot, there are one the first sliding groove and a second sliding slots for setting on each sliding rail 106;First walker, 101 He Second walker 102 is connect by two sliding rails 106 with rack 10, and the first walker 101 and the second row at runtime are avoided The vibration of frame 102 is walked, and then improves traveling comfort.
With continued reference to Fig. 1 and Fig. 2.Pipe detection device provided in this embodiment further includes locking device 105, locking device 105 with driving screw rod 103 dog point connect, be used for adjusted the first walker 101 between the second walker 102 at a distance from Driving screw rod 103 is prevented to rotate afterwards.After regulating the distance between the first walker 101 and the second walker 102, to drive Dynamic screw rod 103 locks, in order to avoid when pipe detection device works, because the vibration of rack 10 leads to that screw rod 103 is driven to rotate, in turn The distance between the first walker 101 and the second walker 102 is set to change.
Specifically, the driving end of driving screw rod 103 and dog point are located at the both ends of driving screw rod 103.
Locking device 105 can be a variety of in the present embodiment, such as:Locking device 105 includes locking bolt, in rack 10 It is provided with locking screw thread hole, locking bolt screws in locking screw thread hole;Regulate the first walker 101 and the second walker 102 Between distance after, spin locking bolt, so make the end of locking bolt support driving screw rod 103 on, pass through locking bolt Frictional force between driving screw rod 103 prevents driving screw rod 103 from rotating, to realize the locking to driving screw rod 103.
Locking device 105 includes:Electromagnet, rotatable lamella and brake block;The rear-end transmission of rotatable lamella and driving screw rod 103 Connection, brake block are connect with rack 10;Electromagnet is arranged in rack 10, for attracting brake block, so that brake block is attached to On rotatable lamella.So that brake block is attached on rotatable lamella by so that electromagnet is charged, generates and rub between brake block and rotatable lamella Power is wiped, and then prevention rotatable lamella and driving screw rod 103 rotate, easy to operate, locking is rapidly.
Rotatable lamella can be connect by shaft coupling with driving screw rod 103;Multiple slide posts, slide post are provided on brake block Center line and drive screw rod 103 axis be arranged in parallel, multiple slide openings are provided in rack 10, each slide post is slidably installed in one In a slide opening;Brake block is that iron plate or brake block are mainly made of other ferromagnetism materials, when electromagnet charges, electricity Magnet attracts brake block to be moved to rotatable lamella, and then brake block is made to be attached on rotatable lamella, realizes the lock to driving screw rod 103 It is fixed.Preferably, the friction plate for being contacted with rotatable lamella is additionally provided on brake block, friction plate is mainly made of ceramics, with Increase the frictional force between friction plate and rotatable lamella.
With continued reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 5.Specifically, pipe detection device provided in this embodiment further includes One driving device 20, the magnet-wheel 107 in first driving means 20 and the first walker 101 is sequentially connected, to drive 107 turns of magnet-wheel It is dynamic.It drives the magnet-wheel 107 on the first walker 101 to rotate by driving device, and then drives pipe detection device movement, in order to avoid Staff's promotion pipe detection device movement, it is easy to operate and laborsaving.
In the present embodiment, driving device can there are many, as long as 107 turns of magnet-wheel on the first walker 101 can be driven It is dynamic;Such as:Driving device can be stepper motor, stepper motor by bolted connection with the first walker 101 It connects, a magnet-wheel 107 on the main shaft of stepper motor and the first walker 101 is sequentially connected, and passes through control and inputs stepping electricity The frequency of the drive signal of machine and time can control the rotating speed and rotational angle of stepper motor, and then control pipeline detection dress The speed of travel and travel distance set.Preferably, driving device is miniature DC motor in the present embodiment.
With continued reference to Fig. 3.Specifically, pipe detection device provided in this embodiment further includes the second driving device 30, the Magnet-wheel 107 in two driving devices 30 and the second walker 102 is sequentially connected, to drive magnet-wheel 107 to rotate.Pass through the second driving Device 30 can drive the magnet-wheel 107 on the second walker 102 to rotate, so that on the first walker 101 and the second walker 102 Magnet-wheel 107 simultaneously drive pipe detection device to move, to improve driving force;In addition, by making first driving means 20 and The rotating speed of two driving devices 30 is different, can make pipe detection device while being moved along the axis of pipeline along the side wall of pipeline Rotation, i.e., pipe detection device is moved along helix.
Preferably, sprocket wheel is both provided on each magnet-wheel 107 on the first walker 101, transmission chain coordinates with each sprocket wheel, with Just first driving means 20 can drive each magnet-wheel 107 on the first walker 101 to rotate synchronously.It is further preferred that the second row It walks and is also both provided with sprocket wheel on each magnet-wheel 107 on frame 102, transmission chain coordinates with each sprocket wheel, so that the second driving device 30 can To drive each magnet-wheel 107 on the second walker 102 to rotate synchronously.
With continued reference to Fig. 1.Pipe detection device provided in this embodiment further includes controller and position-measurement device 40, Controller is electrically connected with defect detecting device 50 and position-measurement device 40 respectively;Position-measurement device 40 is used to detect residing Pipeline location.When defect detecting device 50, which detects, has defect on pipeline, controller obtains position-measurement device 40 and detects The pipeline location arrived, and then determine the defective locations on pipeline;After the detection of the complete twin conduit of pipe detection device, it can control The position of each defect detected is obtained in device processed, is convenient for subsequent reparation.
Preferably, controller can be that microcontroller, programmable logic controller (PLC) etc. are able to carry out the program being stored therein Device.
Preferably, position-measurement device 40 can be laser range finder, and laser range finder is sent out to the end of pipeline when work Laser beam is penetrated, laser irradiation reflects after pipe end to laser range finder, swashs according to the reflection for sending out laser beam and receiving Time interval between light beam, and then the position on pipeline of pipe detection device is calculated, and be input in controller.
With continued reference to Fig. 3.Specifically, position-measurement device 40 includes the first detection wheel 401, the second detection wheel 403, first Encoder 402 and second encoder 404, the first detection wheel 401 and the first encoder 402 are sequentially connected, and are arranged in rack 10 are arranged along the front end of traffic direction, the axis of the first detection wheel 401 perpendicular to traffic direction;Second detection wheel 403 and second Encoder 404 is sequentially connected, and is arranged in rack 10 along the rear end of traffic direction, and the axis of the second detection wheel 403 is parallel to fortune Line direction is arranged;First encoder 402 and second encoder 404 are electrically connected with the controller.First encoder 402 can detect Go out distance of the pipe detection device along the direction operation for being parallel to pipe centerline, second encoder 404 can detect pipeline The angle that detection device is rotated around the center line of pipeline, accurately to orient the position of defect, accuracy of detection is higher.
With continued reference to Fig. 4.Preferably, the first detection wheel 401 includes parallel and coaxial arrangement the first turntable 4011 and the Two turntables 4013, the first turntable 4011 and the second turntable 4013 are each attached in shaft, and shaft connects with the transmission of the first encoder 402 It connects;Multiple first rotating rollers 4012 of setting at the edge interval of the first turntable 4011, every 1 first rotating roller 4012 are rotatable It being connect with the first turntable 4011, the axis of the first rotating roller 4012 and the axis of shaft are located in mutually perpendicular two planes, So that in center line rotation of the pipe detection device around pipeline, the first rotating roller 4012 rotates, with reduce the first turntable 4011 with Frictional force between pipe side wall.Correspondingly, the edge interval of the second turntable 4013 is provided with multiple second rotating rollers 4014, often One second rotating roller 4014 is rotatably connect with the second turntable 4013, the axis of the second rotating roller 4014 and the axis position of shaft In in mutually perpendicular two planes, in addition every 1 second rotating roller 4014 be located at two adjacent the first rotating rollers 4012 it Between.
It is further preferred that the structure of the second detection wheel 403 is identical as the structure of the first detection wheel 401, it is no longer superfluous herein It states.First encoder 402 and second encoder 404 are Omron encoder.
Specifically, the first detection wheel 401 and the first encoder 402 are arranged on the first adjustable plate, and first is adjusted It is provided with central axis on plate in the first vertical rail 405 of rack 10, it is vertical to be provided with first in rack 10 accordingly Sliding slot, the first vertical rail 405 are threaded through in the first vertical chute;And the both ends of the first tensioning spring 406 are respectively with first Adjustable plate is connected with 10 holder of rack, so that the first adjustable plate is moved to pipeline with the elastic force by the first tensioning spring 406, in turn The first detection wheel 401 is set to be contacted always with the side wall of pipeline, in case pipe side wall injustice makes the first detection wheel 401 and pipeline point From leading to the low precision of position-measurement device 40.
Preferably, the second detection wheel 403 and second encoder 404 are arranged on the second adjustable plate, and the second adjustable plate On be provided with the second vertical rail, be provided with the second vertical chute in rack 10, it is vertical sliding that the second vertical rail is slidably installed in second In slot;And the both ends of the second tensioning spring are connect with the second adjustable plate and rack 10 respectively, to pass through the second tensioning spring Elastic force makes the second adjustable plate be moved to pipeline, and then the second detection wheel 403 is made to be contacted always with the side wall of pipeline.
Specifically, pipe detection device provided in this embodiment further includes:Accumulator and button panel 108, accumulator is set It sets in rack 10, and accumulator is electrically connected with the controller, powers for device in order to control.Button panel 108 is arranged in rack 10 On, and multiple buttons 1081 are provided on button panel 108, multiple buttons 1081 are electrically connected with the controller;Correspondingly, control A variety of detection patterns are stored in device, such as:The reciprocal detection pattern that control pipeline detection device moves back and forth on pipeline;Or Person, the differential helicon mode etc. that control pipeline detection device is moved in pipeline upper edge helix;Each button 1081 and one kind Detection pattern corresponds to, and after touching button 1081, controller runs detection pattern corresponding with the button 1081, and then right Pipeline is detected.
With continued reference to Fig. 3.Defect detecting device 50 includes that the first detection magnet 501, second detects magnet 502 and Hall Element 503, the first detection magnet 501 and second detect setting of the magnet 502 along traffic direction interval, and Hall element 503 is arranged Between the first detection magnet 501 and second detects magnet 502.It is right simultaneously that first detection magnet 501 and second detects magnet 502 Pipeline is magnetized, it is possible to increase the magnetic field in tube wall is convenient for detection.Preferably, the first detection magnet 501 and second detects magnet 502 be permanent magnet.
The installation process of pipe detection device is:The first walker 101 and the second walker 102 are mounted on rack first On 10, make on driving screw rod 103 first drive screw thread 1031 and second drive screw thread 1032 respectively with first driving nut and Second driving nut cooperation, and locking device 105 is mounted in rack 10;First driving means 20 and second are driven later Dynamic device 30 is sequentially connected with the magnet-wheel 107 on the first walker 101 and the second walker 102 respectively;Later by the first detection Wheel 401 and the first encoder 402 are arranged in the front end of 10 upper edge traffic direction of rack, second encoder 404 and the second detection wheel 403 are arranged in the rear end of 10 upper edge traffic direction of rack;Later by controller, accumulator, defect detecting device 50 and button Plate 108 is separately mounted in rack 10;Finally by electromagnet, first driving means 20, the second driving device 30, the first encoder 402, the button 1081 on second encoder 404, accumulator, Hall element 503 and button panel 108 is electrically connected with controller It connects.
The use process of pipe detection device is:Driving screw rod 103 is driven to rotate by tumbler 104 first, in turn The first driving screw thread 1031 and second driving screw thread 1032 is set to respectively drive the first walker 101 and the second walker 102 to phase Anti- direction movement, adjusts the distance between the first walker 101 and the second walker 102, so that the first walker 101 and second Wheel on walker 102 is bonded with detected pipe side wall;The electromagnet electrification of controller control later, to lock driving spiral shell Bar 103;Later by touching button 1081, one detection pattern of selection makes controller execute the corresponding program of the detection pattern, into And first driving means 20 and the work of the second driving device 30 are controlled, to drive pipe detection device to be moved on pipeline;With this Meanwhile Hall element 503 is detected the tube wall of pipeline, it, will detection signal input when detecting on tube wall with defect Into controller, in addition, the first detection wheel 401 and/or the rotation of the second detection wheel 403, make the first encoder 402 and/or second Pipeline location where pipe detection device is delivered in the form of position signal in controller by encoder 404, passes through control Storage device in device will detect signal and position signal is stored with the shape encoded;After having executed detection program, it can incite somebody to action Detection signal and position signal in storage device are read out, and by detecting the correspondence of signal and position signal, are obtained Pipeline location where each defect, in order to subsequent repairing pipe.
Finally it should be noted that:The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations;To the greatest extent Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that:Its according to So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into Row equivalent replacement;And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution The range of scheme.

Claims (10)

1. a kind of pipe detection device, which is characterized in that including:Rack, the first walker, the second walker, regulating device with And defect detecting device;First walker and second walker are along setting perpendicular to the direction interval of traffic direction It sets, second walker is connect with the rack, and first walker is connect by the regulating device with the rack, The regulating device for adjust first walker between second walker at a distance from;First walker and institute It states the second walker upper edge traffic direction and is arranged at intervals with multiple magnet-wheels;The defect detecting device is for detecting on pipeline Defect.
2. pipe detection device according to claim 1, which is characterized in that the regulating device includes:Drive screw rod with And tumbler;The driving screw rod is rotatably connect with the rack, and the first driving spiral shell is provided on the driving screw rod Line is provided with the first driving nut with the first driving screw-thread fit on first walker;The tumbler with The driving end of the driving screw rod is sequentially connected;Central axis is provided in the rack in the sliding rail of traffic direction, it is described The first sliding groove is provided on first walker, the first sliding groove is set on the sliding rail.
3. pipe detection device according to claim 2, which is characterized in that be provided with the second cunning on second walker Slot;The second sliding slot is set on the sliding rail;The driving screw rod includes first segment and second segment, the first driving spiral shell Line is arranged on first segment, and the second driving screw thread is provided on the second segment, and the first driving screw thread drives with described second Move the oppositely oriented of screw thread;Second walker is equipped with the second driving nut with the second driving screw-thread fit.
4. pipe detection device according to claim 3, which is characterized in that the pipe detection device further includes locking dress It sets, the locking device connect with the dog point of the driving screw rod, for adjusting first walker and described the The drive screw turns are prevented after distance between two walkers.
5. pipe detection device according to claim 4, which is characterized in that the locking device includes:Electromagnet, rotation Piece and brake block;The rotatable lamella is connect with the rear-end transmission of the driving screw rod, and the brake block is connect with the rack; The electromagnet is arranged in the rack, for attracting the brake block.
6. according to claim 1-5 any one of them pipe detection devices, which is characterized in that the pipe detection device also wraps First driving means are included, the first driving means are sequentially connected with the magnet-wheel on first walker.
7. pipe detection device according to claim 6, which is characterized in that the pipe detection device further includes the second drive Dynamic device, second driving device are sequentially connected with the magnet-wheel on second walker.
8. according to claim 1-5 any one of them pipe detection devices, which is characterized in that the pipe detection device also wraps Controller and position-measurement device are included, the controller is electric with the defect detecting device and the position-measurement device respectively Connection;The position-measurement device is used to detect residing pipeline location.
9. pipe detection device according to claim 8, which is characterized in that the position-measurement device includes the first detection Wheel, the second detection wheel, the first encoder and second encoder, first detection wheel connect with first encoder transmission It connects, and is arranged in the rack along the front end of traffic direction, the axis of first detection wheel is set perpendicular to the traffic direction It sets;Second detection wheel is sequentially connected with the second encoder, and is arranged in the rack along the rear end of traffic direction, institute The axis for stating the second detection wheel is parallel to traffic direction setting;First encoder and the second encoder with the control Device electrical connection processed.
10. according to claim 1-5 any one of them pipe detection devices, which is characterized in that the defect detecting device packet Include the first detection magnet, the second detection magnet and Hall element, the first detection magnet and second detection magnet edge The setting at traffic direction interval, the Hall element setting is between the first detection magnet and the second detection magnet.
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CN101358688A (en) * 2008-09-12 2009-02-04 大庆石油学院 Magnetic leakage detector out of diameter-variable pipe driven by DC generator
CN102590326A (en) * 2011-10-31 2012-07-18 北京理工大学 Magnetic memory/magnetic leakage integrated multi-probe detection device for tube and shaft type parts
CN105587809A (en) * 2015-11-13 2016-05-18 深圳市威捷机电股份公司 Electromagnetic braking device for power shaft
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