CN106197316B - The method for carrying out electric power tower steel pipe circular section contour detecting using averaging method - Google Patents
The method for carrying out electric power tower steel pipe circular section contour detecting using averaging method Download PDFInfo
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- CN106197316B CN106197316B CN201610575677.7A CN201610575677A CN106197316B CN 106197316 B CN106197316 B CN 106197316B CN 201610575677 A CN201610575677 A CN 201610575677A CN 106197316 B CN106197316 B CN 106197316B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/20—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring contours or curvatures, e.g. determining profile
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Abstract
The invention discloses the method for carrying out electric power tower steel pipe circular section contour detecting using averaging method, including the first step, the installations of steel pipe circular section contour detecting device；Second step, placing steel tubes；Third walks, fixed steel pipe and circular section profile part mark to be detected；4th step, range sensor positioning；5th step, steel pipe circular section outline data once acquire；6th step, second of the acquisition of steel pipe circular section outline data；7th step, steel pipe circular section outline data third time acquire；8th step, steel pipe circular section contour curve are drawn：Point 1, point 1's of the PLC to acquisition;With point 1';';Calculating average value is carried out, and forms new point 1, and so on, form new point 2, point 3Until point n；PLC is by the point 1 after data processing, point 2, point 3Until point nIt is sequentially connected and carries out fillet processing, just obtain the circular section contour curve in steel pipe section to be measured, easy to detect quick, detected value is accurate, reliable.
Description
Technical field
It is especially a kind of to carry out electric power tower using averaging method the present invention relates to a kind of detection method of electric device
The method of steel pipe circular section contour detecting.
Background technology
Power Transmission process needs the electric power tower largely used, electric power tower subangle head tower and steel tube tower.Angle steel tower master
To be used in mountain area, the occasion of communications and transportation inconvenience.In the steel tube tower that plains region largely uses structure simple and direct.Steel tube tower it is main
Structure is steel pipe, and tower body is erected a section connection of steel pipe using bolt.Steel pipe passes through tablet sawing sheet, bent plate, pipe
Body gap is welded, and school port, end and the methods of ring flange welding and steel tube surface galvanizing by dipping are process.Steel pipe passes through curved
Volume processing, by rectangular flat plate buckling at pipe.Specific process is the short side direction offer feeding in tablet, along long side
Direction is bent to a certain degree, and then short side direction continues to feed a distance, and the new position of long side direction is bent again, this
Process is repeated.Identical processing is made to two long side directions of rectangular flat plate respectively, two long back gauges of tablet are close,
It is formed with the pipe of opening.Opening is pressed again, two long sides of original tablet are welded into one by being welded.Above-mentioned conventional adds
Work method to form the shape of steel pipe by the short side amount of feeding and long side amount of bow for controlling tablet to ensure, although passing through numerical control programming
Method control machinery moves, but true form still has error.In order to ensure matching for steel pipe both ends and the ring flange that couples
Close, after the welding of the gap of steel pipe, also the circularity at steel pipe both ends is carried out checking and shaping, could finally be assembled with ring flange and
Welding.Steel pipe has an impact the uniformity coefficient of steel pipe endurance, along the circularity of length cross-sectional geometry in particular with electric power
The voltage of transmission is higher and higher, and the height of power tower is also increasing, and the requirement to steel pipe stress-bearing capability is also improving.
Present processing method can only measure diameter to the intermediate cross-section profile of steel pipe, and pair cross-section profile is unable to measure, i.e., without
Method knows practical circular section profile and designs the error size of circular section profile.
Invention content
In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a kind of utilize to average
The method that method carries out electric power tower steel pipe circular section contour detecting, this carries out electric power tower steel pipe circular section using averaging method
The method of contour detecting can directly carry out steel pipe arbitrary section the detection of circular section profile, and easy to detect quick, detected value is accurate
Really, reliably.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A method of electric power tower steel pipe circular section contour detecting being carried out using averaging method, is included the following steps.
The first step, the installation of steel pipe circular section contour detecting device：The arc benchmark of setting energy placing steel tubes on reference platform
Slot；Left sliding column and right sliding column are separately positioned on the both sides of arc baseline trough and can control sliding, left sliding column bottom
Right side is provided with locating shaft, and locating shaft can be stretched into the steel pipe being positioned on arc baseline trough and is rotatably assorted with steel tube inner hole；
It is provided with shaft on the left of right sliding column, is provided with gland in the shaft of neighbouring steel pipe one end, which can stretch into and be positioned over
In steel pipe on arc baseline trough and with steel tube inner hole tight fit；The other end of shaft is connected with protractor, and shaft can divide
It spends under the drive of device and carries out intermittently period rotation；Gland includes central shaft, electromagnet, spring, arc sheetmetal and elasticity
Wearing layer；Central shaft is coaxially fixedly installed with shaft, and electromagnet is built in central shaft, if the circumferential direction of central shaft is evenly arranged with
Dry block arc sheetmetal, the right end of every piece of arc sheetmetal are hinged with central shaft, and the left end of every piece of arc sheetmetal is logical
Spring is crossed to be fixedly connected with central shaft；Elastic wear-resisting layer is coated on the periphery of arc sheetmetal；Horizontal sliding bar is arranged in arc base
The both ends of the surface of quasi- slot, horizontal sliding bar are fixedly connected by telescopic rod with left sliding column or right sliding column respectively；Level is sliding
The basal sliding of bar is connected with the range sensor, and camera is installed on range sensor.
Second step, placing steel tubes：Steel pipe is placed in arc baseline trough in the first step.
Third walks, fixed steel pipe and circular section profile part mark to be detected：Left sliding column slides to the right, and locating shaft is made to stretch
Enter in the steel pipe in second step and is rotatably assorted with steel tube inner hole；Right sliding column slides to the left, and gland is made to stretch into second step
Steel pipe in and with steel tube inner hole tight fit；Then, it is marked in the upper surface of steel pipe and needs to carry out circular section contour detecting
Position.
4th step, range sensor positioning：What the camera on range sensor marked in capable of being walked to third
Profile position to be detected in circular section carries out automatic identification, and circular section profile is slid onto along horizontal sliding bar apart from telegraphy device to drive
The surface at position to be detected.
5th step, steel pipe circular section outline data once acquire：Range sensor automatic collection range sensor bottom end is extremely
The distance value of steel pipe upper surface, while distance value is passed into PLC, and it is labeled as point 1；Then, drive of the shaft in protractor
Lower rotation one week, and then steel pipe is driven to rotate one week；Steel pipe often rotates a scale division value, and range sensor is primary by automatic collection
The distance value of range sensor bottom end to steel pipe upper surface, while distance value is passed into PLC, and mark it is primary, mark point according to
Secondary is to put 2, point 3 up to point n, and wherein n is equal with the scale division value of protractor.
6th step, second of the acquisition of steel pipe circular section outline data：Shaft is rotated under the drive of protractor and is returned after a week
When to starting point, shaft is rotated further one week, and range sensor acquires range sensor bottom end to the distance of steel pipe upper surface again
Value, is followed successively by point 1', point 2', point 3'Until point n', wherein n'It is equal with the scale division value of protractor.
7th step, steel pipe circular section outline data third time acquire：Shaft is rotated under the drive of protractor and is returned after two weeks
When to starting point, shaft is rotated further one week, and range sensor acquires range sensor bottom end to the distance of steel pipe upper surface again
Value, is followed successively by point 1'', point 2'', point 3''Until point n'', wherein n''It is equal with the scale division value of protractor.
8th step, steel pipe circular section contour curve are drawn：Point 1, point 1&aposs of the PLC to acquisition;With point 1''Calculate average
Value, and form new point 1, and so on, form new point 2, point 3Until point n；PLC is by the point 1 after data processing, point
2, point 3Until point nIt is sequentially connected and carries out fillet processing, just obtain the circular section contour curve in steel pipe section to be measured.
Electromagnetic attraction in the electromagnet can be adjusted.
The scale division value of the protractor is 8 indexing or 16 indexing or 32 indexing.
The locating shaft and the matched one end of steel tube inner hole are wedge shaped or conical.
In the third step, steel pipe fixing means includes the following steps.
Step A, locating shaft positioning：Left sliding column slides to the right, and locating shaft is made to stretch into the steel pipe in second step and and steel
Pipe orifice is rotatably assorted.
Step B, gland are closed up：Electromagnet is powered, and arc sheetmetal overcomes spring force, is closed towards the direction of central shaft
Hold together, the open end area of arc sheetmetal is made to be less than steel tube inner hole sectional area.
Step C, gland stretch into steel tube inner hole：Right sliding column slides to the left, and the gland after closing up is made to stretch into steel pipe
Hole.
Step D, gland expansion：After gland stretches into endoporus, electromagnet power-off, spring restores, gland expansion, arc
Shape metallic plate is enclosed a circular platform type structure, and the open end area of arc sheetmetal is more than steel tube inner hole sectional area, to
Make gland and steel tube inner hole tight fit, steel pipe that can be rotated with shaft.
After the present invention uses the above method, the detection of circular section profile, detection side can be directly carried out to steel pipe arbitrary section
Just quick, detected value is accurate, reliable.
Description of the drawings
Fig. 1 is the structural schematic diagram of steel pipe circular section contour detecting device in electric power steel pipe tower.
Fig. 2 shows the enlarged structure schematic diagram of gland in Fig. 1.
Fig. 3 shows the schematic cross-section of gland in Fig. 2.
Specific implementation mode
The present invention is described in further detail with specific better embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, Figure 2 and Figure 3, steel pipe circular section contour detecting device in a kind of electric power steel pipe tower, wherein there is base
Quasi- platform 1, arc baseline trough 11, left sliding column 2, locating shaft 21, right sliding column 3, shaft 31, gland 32, protractor 33, in
Mandrel 321, electromagnet 322, spring 323, arc sheetmetal 324, elastic wear-resisting layer 325, guide section 326, open end 327, steel
The technical characteristics such as pipe 4, horizontal sliding bar 5, telescopic rod 51, range sensor 6.
Steel pipe circular section contour detecting device in a kind of electric power steel pipe tower, including reference platform, left sliding column, right sliding
Column, locating shaft, shaft, gland, protractor, horizontal sliding bar, range sensor and PLC.
The arc baseline trough of energy placing steel tubes is provided on reference platform.
Left sliding column and right sliding column are separately positioned on the both sides of arc baseline trough and can control sliding, left sliding column
Bottom right is provided with locating shaft, and locating shaft can stretch into the steel pipe being positioned on arc baseline trough and match with steel tube inner hole rotation
It closes；It is provided with shaft on the left of right sliding column, is provided with gland in the shaft of neighbouring steel pipe one end, which can stretch into placement
In in the steel pipe on arc baseline trough and with steel tube inner hole tight fit；The other end of shaft is connected with protractor, and shaft can be
Intermittently period rotation is carried out under the drive of protractor.
Gland includes central shaft, electromagnet, spring, arc sheetmetal and elastic wear-resisting layer；Central shaft is coaxial with shaft
Fixed setting, electromagnet are built in central shaft, and the circumferential direction of central shaft is evenly arranged with several pieces of arc sheetmetals, every piece of arc
The right end of metallic plate is hinged with central shaft, and the left end of every piece of arc sheetmetal is fixedly connected by spring with central shaft；
Elastic wear-resisting layer is coated on the periphery of arc sheetmetal.
Horizontal sliding bar is arranged in the surface of arc baseline trough, and the both ends of horizontal sliding bar pass through telescopic rod and left sliding respectively
Column or right sliding column are fixedly connected；The basal sliding of horizontal sliding bar is connected with the range sensor.
Electromagnetic attraction in the electromagnet can be adjusted.
The central shaft further includes the guide section being set on the left of arc sheetmetal.
The locating shaft and the matched one end of steel tube inner hole are wedge shaped or conical.
The scale division value of the protractor is 8 indexing or 16 indexing or 32 indexing.
To the method that steel pipe arbitrary section carries out circular section contour detecting, preferably there is the following two kinds embodiment.
Embodiment 1
The detection method of steel pipe circular section profile, includes the following steps in a kind of electric power steel pipe tower.
The first step, the installation of steel pipe circular section contour detecting device：The arc benchmark of setting energy placing steel tubes on reference platform
Slot；Left sliding column and right sliding column are separately positioned on the both sides of arc baseline trough and can control sliding, left sliding column bottom
Right side is provided with locating shaft, and locating shaft can be stretched into the steel pipe being positioned on arc baseline trough and is rotatably assorted with steel tube inner hole；
It is provided with shaft on the left of right sliding column, is provided with gland in the shaft of neighbouring steel pipe one end, which can stretch into and be positioned over
In steel pipe on arc baseline trough and with steel tube inner hole tight fit；The other end of shaft is connected with protractor, and shaft can divide
It spends under the drive of device and carries out intermittently period rotation；Gland includes central shaft, electromagnet, spring, arc sheetmetal and elasticity
Wearing layer；Central shaft is coaxially fixedly installed with shaft, and electromagnet is built in central shaft, if the circumferential direction of central shaft is evenly arranged with
Dry block arc sheetmetal, the right end of every piece of arc sheetmetal are hinged with central shaft, and the left end of every piece of arc sheetmetal is logical
Spring is crossed to be fixedly connected with central shaft；Elastic wear-resisting layer is coated on the periphery of arc sheetmetal；Horizontal sliding bar is arranged in arc base
The both ends of the surface of quasi- slot, horizontal sliding bar are fixedly connected by telescopic rod with left sliding column or right sliding column respectively；Level is sliding
The basal sliding of bar is connected with the range sensor.
Second step, placing steel tubes：The position for needing to carry out circular section contour detecting is marked on steel pipe, will be marked
Steel pipe place in arc baseline trough in the first step, and make label position upward.
Third walks, fixed steel pipe：Left sliding column slides to the right, and locating shaft is made to stretch into the steel pipe in second step and and steel pipe
Endoporus is rotatably assorted；Right sliding column slides to the left, make gland stretch into the steel pipe in second step and with steel tube inner hole tight fit.
4th step, range sensor positioning：Manually or automatically steel pipe label will be slid onto along horizontal sliding bar apart from telegraphy device
The surface at position.
5th step, steel pipe circular section contour detecting：Range sensor automatic collection range sensor bottom end is to steel pipe upper table
The distance value in face, while distance value is passed into PLC, and it is labeled as point 1；Then, shaft rotates one under the drive of protractor
Week, and then steel pipe is driven to rotate one week；Steel pipe often rotates a scale division value, and range sensor is by Distance-sensing of automatic collection
The distance value of device bottom end to steel pipe upper surface, while distance value is passed into PLC, and mark it is primary, mark point be followed successively by a little 2,
Point 3 is until point n, wherein n are equal with the scale division value of protractor；PLC is by the point 1 of record, point 2, point 3 until point n is sequentially connected simultaneously
Fillet processing is carried out, the circular section contour curve in steel pipe section to be measured is just obtained.
Embodiment 2
A method of carrying out electric power tower steel pipe circular section contour detecting using averaging method, it is characterised in that：Packet
Include following steps.
The first step, the installation of steel pipe circular section contour detecting device：The arc benchmark of setting energy placing steel tubes on reference platform
Slot；Left sliding column and right sliding column are separately positioned on the both sides of arc baseline trough and can control sliding, left sliding column bottom
Right side is provided with locating shaft, and locating shaft can be stretched into the steel pipe being positioned on arc baseline trough and is rotatably assorted with steel tube inner hole；
It is provided with shaft on the left of right sliding column, is provided with gland in the shaft of neighbouring steel pipe one end, which can stretch into and be positioned over
In steel pipe on arc baseline trough and with steel tube inner hole tight fit；The other end of shaft is connected with protractor, and shaft can divide
It spends under the drive of device and carries out intermittently period rotation；Gland includes central shaft, electromagnet, spring, arc sheetmetal and elasticity
Wearing layer；Central shaft is coaxially fixedly installed with shaft, and electromagnet is built in central shaft, if the circumferential direction of central shaft is evenly arranged with
Dry block arc sheetmetal, the right end of every piece of arc sheetmetal are hinged with central shaft, and the left end of every piece of arc sheetmetal is logical
Spring is crossed to be fixedly connected with central shaft；Elastic wear-resisting layer is coated on the periphery of arc sheetmetal；Horizontal sliding bar is arranged in arc base
The both ends of the surface of quasi- slot, horizontal sliding bar are fixedly connected by telescopic rod with left sliding column or right sliding column respectively；Level is sliding
The basal sliding of bar is connected with the range sensor, and camera is installed on range sensor.
Second step, placing steel tubes：Steel pipe is placed in arc baseline trough in the first step.
Third walks, fixed steel pipe and circular section profile part mark to be detected：Left sliding column slides to the right, and locating shaft is made to stretch
Enter in the steel pipe in second step and is rotatably assorted with steel tube inner hole；Right sliding column slides to the left, and gland is made to stretch into second step
Steel pipe in and with steel tube inner hole tight fit；Then, it is marked in the upper surface of steel pipe and needs to carry out circular section contour detecting
Position.
4th step, range sensor positioning：What the camera on range sensor marked in capable of being walked to third
Profile position to be detected in circular section carries out automatic identification, and circular section profile is slid onto along horizontal sliding bar apart from telegraphy device to drive
The surface at position to be detected.
5th step, steel pipe circular section outline data once acquire：Range sensor automatic collection range sensor bottom end is extremely
The distance value of steel pipe upper surface, while distance value is passed into PLC, and it is labeled as point 1；Then, drive of the shaft in protractor
Lower rotation one week, and then steel pipe is driven to rotate one week；Steel pipe often rotates a scale division value, and range sensor is primary by automatic collection
The distance value of range sensor bottom end to steel pipe upper surface, while distance value is passed into PLC, and mark it is primary, mark point according to
Secondary is to put 2, point 3 up to point n, and wherein n is equal with the scale division value of protractor.
6th step, second of the acquisition of steel pipe circular section outline data：Shaft is rotated under the drive of protractor and is returned after a week
When to starting point, shaft is rotated further one week, and range sensor acquires range sensor bottom end to the distance of steel pipe upper surface again
Value, is followed successively by point 1', point 2', point 3'Until point n', wherein n'It is equal with the scale division value of protractor.
7th step, steel pipe circular section outline data third time acquire：Shaft is rotated under the drive of protractor and is returned after two weeks
When to starting point, shaft is rotated further one week, and range sensor acquires range sensor bottom end to the distance of steel pipe upper surface again
Value, is followed successively by point 1'', point 2'', point 3''Until point n'', wherein n''It is equal with the scale division value of protractor.
8th step, steel pipe circular section contour curve are drawn：Point 1, point 1&aposs of the PLC to acquisition;With point 1''Calculate average
Value, and form new point 1, and so on, form new point 2, point 3Until point n；PLC is by the point 1 after data processing, point
2, point 3Until point nIt is sequentially connected and carries out fillet processing, just obtain the circular section contour curve in steel pipe section to be measured.
In above-described embodiment 1 and embodiment 2, in the third step, steel pipe fixing means includes the following steps：
Step A, locating shaft positioning：Left sliding column slides to the right, and locating shaft is made to stretch into the steel pipe in second step and and steel
Pipe orifice is rotatably assorted.
Step B, gland are closed up：Electromagnet is powered, and arc sheetmetal overcomes spring force, is closed towards the direction of central shaft
Hold together, the open end area of arc sheetmetal is made to be less than steel tube inner hole sectional area.
Step C, gland stretch into steel tube inner hole：Right sliding column slides to the left, and the gland after closing up is made to stretch into steel pipe
Hole.
Step D, gland expansion：After gland stretches into endoporus, electromagnet power-off, spring restores, gland expansion, arc
Shape metallic plate is enclosed a circular platform type structure, and the open end area of arc sheetmetal is more than steel tube inner hole sectional area, to
Make gland and steel tube inner hole tight fit, steel pipe that can be rotated with shaft.
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above
Detail can carry out a variety of equivalents to technical scheme of the present invention within the scope of the technical concept of the present invention, this
A little equivalents all belong to the scope of protection of the present invention.
Claims (5)
1. a method of carrying out electric power tower steel pipe circular section contour detecting using averaging method, it is characterised in that：Including
Following steps：
The first step, the installation of steel pipe circular section contour detecting device：The arc baseline trough of setting energy placing steel tubes on reference platform；It is left
Sliding column and right sliding column are separately positioned on the both sides of arc baseline trough and can control sliding, are set on the right side of left sliding column bottom
It is equipped with locating shaft, locating shaft can be stretched into the steel pipe being positioned on arc baseline trough and is rotatably assorted with steel tube inner hole；Right sliding
It is provided with shaft on the left of column, is provided with gland in the shaft of neighbouring steel pipe one end, which, which can stretch into, is positioned over arc base
In steel pipe on quasi- slot and with steel tube inner hole tight fit；The other end of shaft is connected with protractor, and shaft can be in protractor
Driving lower progress, intermittently the period rotates；Gland includes central shaft, electromagnet, spring, arc sheetmetal and elastic wear-resisting layer；
Central shaft is coaxially fixedly installed with shaft, and electromagnet is built in central shaft, and the circumferential direction of central shaft is evenly arranged with several pieces of arcs
The right end of shape metallic plate, every piece of arc sheetmetal is hinged with central shaft, and the left end of every piece of arc sheetmetal passes through spring
It is fixedly connected with central shaft；Elastic wear-resisting layer is coated on the periphery of arc sheetmetal；Horizontal sliding bar is arranged in arc baseline trough
The both ends of surface, horizontal sliding bar are fixedly connected by telescopic rod with left sliding column or right sliding column respectively；The bottom of horizontal sliding bar
Portion slidably connects a range sensor, and camera is installed on range sensor；
Second step, placing steel tubes：Steel pipe is placed in arc baseline trough in the first step；
Third walks, fixed steel pipe and circular section profile part mark to be detected：Left sliding column slides to the right, and locating shaft is made to stretch into
It is rotatably assorted in steel pipe in two steps and with steel tube inner hole；Right sliding column slides to the left, and gland is made to stretch into the steel in second step
Pipe in and with steel tube inner hole tight fit；Then, the position for needing to carry out circular section contour detecting is marked in the upper surface of steel pipe；
4th step, range sensor positioning：The circle that camera on range sensor marks in capable of being walked to third is cut
Facial contour position to be detected carries out automatic identification, to be checked to drive range sensor along horizontal sliding bar to slide onto circular section profile
Survey the surface at position；
5th step, steel pipe circular section outline data once acquire：Range sensor automatic collection range sensor bottom end is to steel pipe
The distance value of upper surface, while distance value is passed into PLC, and it is labeled as point 1；Then, shaft turns under the drive of protractor
It is one week dynamic, and then steel pipe is driven to rotate one week；Steel pipe often rotates a scale division value, and range sensor is by the primary distance of automatic collection
The distance value of sensor bottom end to steel pipe upper surface, while distance value is passed into PLC, and mark once, mark point is followed successively by
Point 2, point 3 are until point n, wherein n are equal with the scale division value of protractor；
6th step, second of the acquisition of steel pipe circular section outline data：Shaft is rotated under the drive of protractor and has been returned to after a week
When point, shaft is rotated further one week, and range sensor acquires range sensor bottom end to the distance value of steel pipe upper surface again, according to
Secondary is 1 &apos of point;, point 2 ', point 3 'Until point n ', wherein n 'It is equal with the scale division value of protractor；
7th step, steel pipe circular section outline data third time acquire：Shaft is rotated under the drive of protractor and has been returned to after two weeks
When point, shaft is rotated further one week, and range sensor acquires range sensor bottom end to the distance value of steel pipe upper surface again, according to
Secondary is 1 &apos of point;', point 2 '', point 3 ''Until point n '', wherein n ''It is equal with the scale division value of protractor；
8th step, steel pipe circular section contour curve are drawn：Point 1, point 1 &aposs of the PLC to acquisition;With put 1 ''Calculating average value is carried out,
And it is equal to form new point 1, and so on, formed new point 2, point 3 is until point n is equal；PLC by after data processing point 1,
Point 2 is, point 3 is equal until point n is sequentially connected and carries out fillet processing, and the circular section profile for just obtaining steel pipe section to be measured is bent
Line.
2. the method according to claim 1 for carrying out electric power tower steel pipe circular section contour detecting using averaging method,
It is characterized in that：Electromagnetic attraction in the electromagnet can be adjusted.
3. the method according to claim 1 for carrying out electric power tower steel pipe circular section contour detecting using averaging method,
It is characterized in that：The scale division value of the protractor is 8 indexing or 16 indexing or 32 indexing.
4. the method according to claim 1 for carrying out electric power tower steel pipe circular section contour detecting using averaging method,
It is characterized in that：The locating shaft and the matched one end of steel tube inner hole are wedge shaped or conical.
5. the method according to claim 1 for carrying out electric power tower steel pipe circular section contour detecting using averaging method,
It is characterized in that：In the third step, steel pipe fixing means includes the following steps：
Step A, locating shaft positioning：Left sliding column slides to the right, make locating shaft stretch into the steel pipe in second step and in steel pipe
Hole is rotatably assorted；
Step B, gland are closed up：Electromagnet is powered, and arc sheetmetal overcomes spring force, closes up towards the direction of central shaft,
The open end area of arc sheetmetal is set to be less than steel tube inner hole sectional area；
Step C, gland stretch into steel tube inner hole：Right sliding column slides to the left, and the gland after closing up is made to stretch into steel tube inner hole；
Step D, gland expansion：After gland stretches into endoporus, electromagnet power-off, spring restores, gland expansion, arc gold
Belonging to plate and is enclosed a circular platform type structure, the open end area of arc sheetmetal is more than steel tube inner hole sectional area, to
Make solid
Determine head and steel tube inner hole tight fit, steel pipe can be rotated with shaft.
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| CN201610575677.7A CN106197316B (en) | 2016-07-21 | 2016-07-21 | The method for carrying out electric power tower steel pipe circular section contour detecting using averaging method |
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| CN106197316A (en) | 2016-12-07 |
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