CN209400475U - Inner wall of the pipe circumference weld inspection device - Google Patents
Inner wall of the pipe circumference weld inspection device Download PDFInfo
- Publication number
- CN209400475U CN209400475U CN201920020356.XU CN201920020356U CN209400475U CN 209400475 U CN209400475 U CN 209400475U CN 201920020356 U CN201920020356 U CN 201920020356U CN 209400475 U CN209400475 U CN 209400475U
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- China
- Prior art keywords
- wall
- winding section
- pipe
- motor
- detection probe
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of inner wall of the pipe circumference weld inspection device, including for detecting inner wall of the pipe detection probe, drive detection probe to swing in inner wall of the pipe rotating mechanism and the climbing mechanism that drives detection probe to move along a straight line in inner wall of the pipe；Detection probe includes frame body, frame body has the first winding section and the second winding section, the upper side edge of first winding section and the upper side edge of the second winding section are all curl, and the upper side edge of the upper side edge of the first winding section and the second winding section is parallel with the inner wall of pipeline respectively；Climbing mechanism includes the second motor that pedestal, the traveling wheel being fixed below pedestal and driving traveling wheel move along a straight line in inner wall of the pipe；Rotating mechanism includes the first motor that rotating disk and driving rotating disk swing.The detection probe of the utility model is Curved dectection coil, and when detection places vertically, coil curl face inner wall of the pipe and parallel with inner wall of the pipe, can effectively increase area of detection.
Description
Technical field
The utility model belongs to technical field of nondestructive testing, more particularly to a kind of inner wall of the pipe circumference weld inspection device.
Background technique
Natural gas is as green, the clean fuel of low-carbon, structural adjustment and construction of energy economizing type, environment in urban energy
In the process in friendly city, play an important role.By taking Beijing as an example, deliverability of gas is up to 138.54 hundred million cubes
Meter, about 6,600,000 family of pipeline gas user, 2.28 ten thousand kilometers of natural gas line of operation inside and outside capital.Inner Examination Technology on Pipeline is to pass through
Intelligent robot equipped with non-destructive detecting device and data sampling and processing and storage system is run in the duct, is completed to tube body
Scanning step by step, to realize detection to pipeline internal flaw.
From the point of view of the statistics of previous gas pipeline safety accident, commissure be gas leakage main portions it
One, it is the emphasis of gas leakage detection.In addition, since duct length and the certainty of welding position, positioning accuracy are internally examined
The position judgement for surveying robot has an important influence.Currently used is the method for vision-based detection, that is, passes through image collecting device
And processing system determines the positions of pipeline internal weld seams.But during atual detection, due to inside gas pipeline there is
Many deposits, weld seam are easily overwritten in deposit bottom, and only by robot, collected video is difficult to sentence in pipeline
The case where being broken the position of seam, will appear missing inspection often.
EDDY CURRENT is a kind of conventional lossless detection method, it applies electromagnetic induction principle, to conductive surface or nearly table
The defect in face is detected, and inner wall of the pipe girth joint can be detected and be positioned using this method.To pipeline inside detection one
As using inside-through type eddy current probe, but this probe coil size close with internal diameter of the pipeline should can be only achieved preferable inspection
Effect is surveyed, this will cause probe, and volume is relatively large, and robot, which is difficult to carry it, to be detected.Another method is using table
Face probe, but due to detection be curved surface, surface probe cover that detection range is smaller, are easy by local corrosion defect
It influences.It is by its coil design into the space structure parallel with inner wall of the pipe there are also a kind of improved method, but this can give line again
The manufacture of circle brings difficulty.
Utility model content
The utility model mainly solving the technical problems that providing a kind of inner wall of the pipe circumference weld inspection device, visit by detection
Head is Curved dectection coil, and when detection places vertically, coil curl face inner wall of the pipe and parallel with inner wall of the pipe, can effectively be increased
Add area of detection.
In order to solve the above technical problems, the technical solution that the utility model uses is: a kind of inner wall of the pipe girth joint
Detection device swings including detection probe, the drive detection probe for detecting inner wall of the pipe in inner wall of the pipe
Rotating mechanism and the climbing mechanism for driving the detection probe to move along a straight line in inner wall of the pipe；
The detection probe includes frame body, and the frame body has the first winding section and the second winding section, described
One end of the coil of first winding section is connected with one end of the coil of second winding section, the coil of first winding section
The other end of the other end and the coil of second winding section is connect with alternating current respectively, the upper side edge of first winding section
Upper side edge with second winding section is all curl, the upside of the upper side edge of first winding section and second winding section
Side is parallel with the inner wall of the pipeline respectively；
The climbing mechanism includes pedestal, the traveling wheel being fixed below pedestal and driving traveling wheel in inner wall of the pipe straight line
Second motor of movement, second motor are electrically connected with the traveling wheel；
The rotating mechanism includes the first motor that rotating disk and driving rotating disk swing；The rotating disk is located at institute
The top of pedestal is stated, the output shaft of the first motor is fixedly connected with the central axis of the rotating disk；
It further include fixed block and connecting rod, the fixed block is fixed on the upper end of rotating disk, and the inside of the fixed block is perpendicular
To a resilient snubber is fixed, one end of the connecting rod is fixedly connected with the detection probe, the other end of the connecting rod
It is fixedly connected with the resilient snubber；
The detection probe, the first motor and second motor are electrically connected with the controller respectively.
The utility model is that further technical solution is used by solving its technical problem:
It further says, the left and right side of the detection probe is respectively fixed with universal wheel, the universal wheel and the pipeline
Inner wall be bonded roll.
It further says, the coil turn of first winding section is equal with the coil turn of second winding section.
It further says, the first motor is servo motor.
It further says, second motor is stepper motor.
It further says, the resilient snubber is compressed spring.
It further says, first winding section and second winding section are parallel to each other.
The utility model has the beneficial effects that detection device enters pipeline when actually detected, probe two is made by spring
The universal wheel of side can be rolled close to inner wall of the pipe, load driving voltage to probe, climbing mechanism drives detection probe edge
Pipeline moves linearly to carry out scanning.The probe for being connected with alternating current can induce tangential vortex field in duct wall, work as line
When circle is by weld seam position, the vortex field of inner wall of the pipe be will change, to affect the induced voltage of coil, be popped one's head in
The variable quantity of induced voltage can be detected.In order to avoid the influence of biggish corrosion default, in the position of doubtful weld seam, rotation turns
Disk, rotating mechanism drive connecting rod and detection probe to carry out scanning in the fan-shaped region at this, can if detecting signal
To be determined as girth joint.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the utility model in conjunction with pipeline；
Fig. 2 is the structural schematic diagram of the utility model detection probe；
Each section label is as follows in attached drawing:
Detection probe 1, frame body 11, the first winding section 12, the second winding section 13, rotating disk 2, climbing mechanism 3, pedestal
31, traveling wheel 32, fixed block 4, connecting rod 5, resilient snubber 6, universal wheel 7 and pipeline 8.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, to make the protection scope of the utility model apparent clear
Define.
Embodiment: a kind of inner wall of the pipe circumference weld inspection device, as Figure 1-Figure 2, including for detecting inner wall of the pipe
Detection probe 1, drive the detection probe to swing in inner wall of the pipe rotating mechanism and drive the detection probe to exist
The climbing mechanism 3 of inner wall of the pipe linear motion；
The detection probe 1 includes frame body 11, and the frame body has the first winding section 12 and the second winding section
13, one end of the coil of first winding section 12 is connected with one end of the coil of second winding section 13, described first around
The other end of the other end of the coil in line portion 12 and the coil of second winding section 13 is connect with alternating current respectively, and described
The upper side edge of one winding section 12 and the upper side edge of second winding section 13 are all curl, the upper side edge of first winding section 12
It is parallel with the inner wall of the pipeline respectively with the upper side edge of second winding section 13；
The climbing mechanism 3 includes pedestal 31, the traveling wheel 32 being fixed below pedestal and driving traveling wheel in pipeline
Second motor of wall linear motion, second motor are electrically connected with the traveling wheel；
The rotating mechanism includes the first motor that rotating disk 2 and driving rotating disk swing；The rotating disk is located at
The top of the pedestal, the output shaft of the first motor are fixedly connected with the central axis of the rotating disk；
It further include fixed block 4 and connecting rod 5, the fixed block is fixed on the upper end of rotating disk, the inside of the fixed block
Vertically fix a resilient snubber 6, one end of the connecting rod is fixedly connected with the detection probe, the connecting rod it is another
End is fixedly connected with the resilient snubber；
The detection probe, the first motor and second motor are electrically connected with the controller respectively.
The left and right side of the detection probe is respectively fixed with universal wheel 7, and the universal wheel is bonded with the inner wall of the pipeline
It rolls.
The coil turn of first winding section is equal with the coil turn of second winding section.
The first motor is servo motor.
Second motor is stepper motor.
The resilient snubber 6 is compressed spring.
First winding section 12 and second winding section 13 are parallel to each other.
The working principle of the utility model is as follows:
When actually detected, detection device enters pipeline, allows the universal wheel of probe two sides close to pipe by spring
Road inner wall is rolled, and loads driving voltage to probe, climbing mechanism drives detection probe to move linearly along pipeline to be swept
It looks into.The probe for being connected with alternating current can induce tangential vortex field in duct wall, when coil passes through weld seam position,
The vortex field of inner wall of the pipe will change, to affect the induced voltage of coil, probe can be by the variable quantity of induced voltage
Detection.In order to avoid the influence of biggish corrosion default, turntable is rotated in the position of doubtful weld seam, rotating mechanism drives connecting rod
Scanning is carried out in the fan-shaped region at this with detection probe, if detecting signal, girth joint can be determined as.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure transformation made based on the specification and figures of the utility model, it is relevant to be applied directly or indirectly in other
Technical field is also included in the patent protection scope of the utility model.
Claims (7)
1. a kind of inner wall of the pipe circumference weld inspection device, it is characterised in that: including the detection probe for detecting inner wall of the pipe
(1), the rotating mechanism that drives the detection probe to swing in inner wall of the pipe and drive the detection probe in inner wall of the pipe
The climbing mechanism (3) of linear motion；
The detection probe includes frame body (11), and the frame body has the first winding section (12) and the second winding section
(13), one end of the coil of first winding section is connected with one end of the coil of second winding section, first coiling
The other end of the other end of the coil in portion and the coil of second winding section is connect with alternating current respectively, first coiling
The upper side edge in portion and the upper side edge of second winding section are all curl, the upper side edge of first winding section and described second around
The upper side edge in line portion is parallel with the inner wall of the pipeline respectively；
The climbing mechanism includes pedestal (31), the traveling wheel (32) being fixed below pedestal and driving traveling wheel in inner wall of the pipe
Second motor of linear motion, second motor are electrically connected with the traveling wheel；
The rotating mechanism includes the first motor that rotating disk (2) and driving rotating disk swing；The rotating disk is located at institute
The top of pedestal is stated, the output shaft of the first motor is fixedly connected with the central axis of the rotating disk；
It further include fixed block (4) and connecting rod (5), the fixed block is fixed on the upper end of rotating disk, the inside of the fixed block
Vertically fix a resilient snubber (6), one end of the connecting rod is fixedly connected with the detection probe, the connecting rod it is another
One end is fixedly connected with the resilient snubber；
The detection probe, the first motor and second motor are electrically connected with the controller respectively.
2. inner wall of the pipe circumference weld inspection device according to claim 1, it is characterised in that: a left side for the detection probe,
Right side is respectively fixed with universal wheel (7), and the universal wheel is bonded rolling with the inner wall of the pipeline.
3. inner wall of the pipe circumference weld inspection device according to claim 1, it is characterised in that: the line of first winding section
It is equal with the coil turn of second winding section to enclose the number of turns.
4. inner wall of the pipe circumference weld inspection device according to claim 1, it is characterised in that: the first motor is servo
Motor.
5. inner wall of the pipe circumference weld inspection device according to claim 1, it is characterised in that: second motor is stepping
Motor.
6. inner wall of the pipe circumference weld inspection device according to claim 1, it is characterised in that: the resilient snubber is pressure
Contracting spring.
7. inner wall of the pipe circumference weld inspection device according to claim 1, it is characterised in that: first winding section and institute
The second winding section is stated to be parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920020356.XU CN209400475U (en) | 2019-01-07 | 2019-01-07 | Inner wall of the pipe circumference weld inspection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920020356.XU CN209400475U (en) | 2019-01-07 | 2019-01-07 | Inner wall of the pipe circumference weld inspection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209400475U true CN209400475U (en) | 2019-09-17 |
Family
ID=67897868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920020356.XU Expired - Fee Related CN209400475U (en) | 2019-01-07 | 2019-01-07 | Inner wall of the pipe circumference weld inspection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209400475U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111103102A (en) * | 2020-01-06 | 2020-05-05 | 上海安宏建设工程有限公司 | Steel gas pipeline inner weld joint rapid detection device |
-
2019
- 2019-01-07 CN CN201920020356.XU patent/CN209400475U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111103102A (en) * | 2020-01-06 | 2020-05-05 | 上海安宏建设工程有限公司 | Steel gas pipeline inner weld joint rapid detection device |
| CN111103102B (en) * | 2020-01-06 | 2021-12-07 | 上海安宏建设工程有限公司 | Steel gas pipeline inner weld joint rapid detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190917 Termination date: 20210107 |