CN102749037B - Photoelectric type derrick deflection detection device and detection method thereof - Google Patents
Photoelectric type derrick deflection detection device and detection method thereof Download PDFInfo
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- CN102749037B CN102749037B CN201210153900.0A CN201210153900A CN102749037B CN 102749037 B CN102749037 B CN 102749037B CN 201210153900 A CN201210153900 A CN 201210153900A CN 102749037 B CN102749037 B CN 102749037B
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- laser
- pole
- deflection
- main shaft
- derrick
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Abstract
The invention discloses a photoelectric type derrick deflection detection device and a detection method thereof. The device comprises a laser emitter, a laser receiver, optical choppers, inclination sensors and a deflection detector, wherein the laser receiver and an inclination sensor are arranged at the upper end of a derrick, the laser emitter and an inclination sensor are arranged at the lower end of the derrick, and optical choppers and inclination sensors are arranged on all detection points of the middle of the derrick. When end portions of the derrick are subjected to a load action, the whole deflection of the derrick can be detected. According to the photoelectric type derrick deflection detection device and the detection method thereof, the device can detect the whole deflection value and a destabilization state after force is exerted on the derrick, bases are provided for the force analysis of the derrick, the optimization design of the derrick and the quality detection of the derrick, the precision is high, the range is wide, the accuracy is good, the structure is simple, the operation is simple, the producing cost is low and the data can be displayed in real time.
Description
Technical field
The present invention relates to a kind of testing apparatus that detects the stressed rear generation amount of deflection of pole, relate in particular to a kind of photo-electric pole deflection detector and detection method thereof.
Background technology
At present, conventional theory is calculated the method combining with Analysis of Experimental Stress, carries out the optimal design of holding pole structure.This Analysis of Experimental Stress method, is generally adhering resistance strain sheets on the member of pole, measures the strain of its stressed rear member, draws the intensity level of member through converting.For the stressed rear whole amount of deflection of pole and rigidity value, can only draw by doing model test.Because model and the prototype of pole has a great difference in the mode of material, processing etc., so the result of model test often has larger difference with actual conditions, can not meet the demand in application.
Summary of the invention
The object of the invention is exactly in order to make up the defect of prior art, and a kind of photo-electric pole deflection detector and detection method thereof of energy prototype test pole integral rigidity is provided.
The present invention is achieved by the following technical solutions:
A kind of photo-electric pole deflection detector, include pole, bearing, basis, generating laser, laser pickoff, deflection check-up device, some episcotisters, some obliquity sensors, carrying hinge and load, the lower end of described pole is connected with described bearing, bearing is fixed on basis, on the lateral surface of the little direction of cross sectional moment of inertia of pole, described laser pickoff and an obliquity sensor are settled in upper end, described generating laser and an obliquity sensor are settled in lower end, middle equidistant be mounted with described episcotister and obliquity sensor, described generating laser, laser pickoff, the laser beam that episcotister and obliquity sensor are all positioned on the lateral surface center line of the little direction of cross sectional moment of inertia and generating laser sends can be received by laser pickoff and be tackled by episcotister, described some episcotisters and the output terminal of some obliquity sensors are all connected with described deflection check-up device, described load is applied to the upper end of pole.
Adopt above-mentioned device to carry out the detection method that photo-electric pole amount of deflection detects, by generating laser, give off laser beam and received by laser pickoff, by each obliquity sensor, measured respectively the angle of inclination of pole two ends and measuring point, by each episcotister, measured respectively the distance of measuring point and laser beam, draw the original state of pole; At the elementary load application in the upper end of pole, often add one-level load, by generating laser, again given off laser beam, each obliquity sensor is measured respectively the angle of inclination of pole two ends and measuring point again, and each episcotister is being measured respectively the distance of measuring point and laser beam; All import angle of inclination and the range data measured into processing that deflection check-up device carries out data at every turn, draw the whole amount of deflection of pole in the bearing load situation of end.
Described generating laser includes the case being fixed on base, on described case end face, have a window, on window, be provided with one and insert door, in case internal base, be mounted with laser pendulum injection device one, described laser pendulum injection device one includes the motor one being fixed on successively on base, speed reduction unit one, the support that is U-shaped groove shape, detent one and angular displacement sensor one, the main shaft of described motor one is connected with the main shaft of speed reduction unit one, the transmission shaft of speed reduction unit one is connected with the rotating shaft of support left frame wall, the rotating shaft of support left side frame wall is connected with the main shaft of detent one, the other end of the main shaft of detent one is connected with the main shaft of angular displacement sensor one, between frame bottom and base, be lined with beam, the both sides, front and back of beam are mounted with respectively magnet-sensitive switch one, the rotating shaft of the support left and right sides is same central axis, support around this central axis with an angle swinging, the frame bottom that described laser pendulum injection device two is put injection device one for the laser described is fixed with motor two successively, speed reduction unit two, Laser emission seat, detent two and angular displacement sensor two, the main shaft of motor two is connected with the main shaft of speed reduction unit two, the transmission shaft of speed reduction unit two is connected with the front side rotating shaft of Laser emission seat, the rear side rotating shaft of Laser emission seat is connected with the main shaft of detent two, the other end of the main shaft of detent two is connected with the main shaft of angular displacement sensor two, on described Laser emission seat, Laser emission element is installed, in the left and right sides of Laser emission seat, be separately installed with shock-absorbing spring, two ends, left and right in Laser emission seat bottom surface are mounted with respectively magnet-sensitive switch two, the leading flank rotating shaft of Laser emission seat and trailing flank rotating shaft are same central axis, Laser emission seat around this central axis with an angle swinging.
Described laser pickoff includes the casing being arranged on chassis, casing top board center has circular hole, the several light activated elements of equidistant installation on the top board of circular hole periphery, in top board inner side, the position concentric with circular hole is provided with cylindrical shape modulation cover, between modulation cover top and casing top board, modulation panel is installed, bottom is provided with circuit board, center at modulation panel is provided with transmissive mirror, circuit board center is provided with photosensitive receiving tube, wherein, the luminous energy by transmissive mirror shines on photosensitive receiving tube, in casing outside, is provided with cable fixing head.
Principle of work of the present invention is: while bearing axle pressure at the two ends of pole, pole destroys because of the excessive unstability of amount of deflection producing often.According to the theory of the mechanics of materials, little its rigidity of the cross sectional moment of inertia of pole is just little, and will produce amount of deflection in the little direction of this cross sectional moment of inertia.On the lateral surface of the little direction of pole cross sectional moment of inertia, the upper end of pole is mounted with laser pickoff now, and lower end is mounted with generating laser, and the laser beam of being sent and being received by laser pickoff by generating laser is the line of reference of pole center line; In the middle of pole, the measuring point of equidistant placement is all mounted with episcotister and obliquity sensor, by episcotister, recording pole lateral surface to the vertical range of line of reference is deflection value, the sectional twisting angle value being recorded by obliquity sensor, and the corner value of the line of reference that records of the obliquity sensor at two ends, with this, draw the whole amount of deflection of pole when stressed.When the power of bearing when pole is enough large, record the whole unstability form of pole.
Described generating laser principle of work is: laser pendulum injection device one is by the power of motor one, through speed reduction unit one, drive support to swing, and by deflection check-up device, according to the photosensitive receiving tube of laser pickoff, received the signal of laser, control the braking of detent pair of brackets, and measure the pivot angle of support when the time comes by obliquity sensor one.Laser pendulum injection device two is by the power of motor two, through speed reduction unit two, drive Laser emission seat to swing, and deflection check-up device receives the signal of laser according to the photosensitive receiving tube of laser pickoff, control two pairs of Laser emission seat brakings of detent, and measure the pivot angle of Laser emission seat when the time comes by obliquity sensor two.During generating laser Emission Lasers, after the every swing Δ of laser pendulum injection device one α trace angle, laser pendulum injection device two swings β angle, until laser pendulum injection device one has swung α angle, forming α L * β L(L is that generating laser is to the distance of laser pickoff; α, β are less, are considered as α ≈ tg α, β ≈ tg β) rectangular irradiated face, cover laser pickoff, be able to generating laser and follow the tracks of laser pickoff, allow laser be irradiated to photosensitive receiving tube from the transmissive mirror of laser pickoff modulation panel.
The principle of work of described laser pickoff is: the Ear Mucosa Treated by He Ne Laser Irradiation sending when generating laser is to the transmissive mirror of laser pickoff, and the photosensitive receiving tube in covering by modulation receives, and photosensitive receiving tube receives the signal of laser again to deflection check-up device output.After pole is stressed, produced the distortion of amount of deflection, the laser that generating laser sends departs from transmissive mirror, be irradiated on the several light activated elements around of modulation hole, light activated element is to the relevant position of deflection check-up device Output of laser point of irradiation, deflection check-up device judges, and with prestissimo, controls the transmissive mirror that the Laser emission element of generating laser is aimed at laser pickoff again.
In the present invention, pole is tested member; The effect of carrying hinge is transmission power, not carry-over moment; The effect of bearing is that pole is supported in basic web member; The effect on basis is supporting pole; The effect of load is the power detecting with classification load; The effect of episcotister is to measure measuring point place pole lateral surface to the distance of laser line of reference; The effect of obliquity sensor is the angle that measures the pole distortion of measuring point place; The little direction center line of cross sectional moment of inertia is that the cross section at pole measuring point place is at the center line of the little direction of cross sectional moment of inertia; The effect of generating laser 11 is the laser line of reference of making for pole center line, and can be in the angle (α, β) of setting Emission Lasers bundle; The effect of base is to settle generating laser, and motor one, speed reduction unit one, detent one, angular displacement sensor one and the magnet-sensitive switch one of fixed laser pendulum injection device one; The effect of case is protection generating laser; The effect of inserting door is protection Laser emission element; The effect of laser pendulum injection device one is to allow laser beam emitting device two with α angular range, swing back and forth on X coordinate direction; The effect of motor one is to provide power for support swings; The effect of speed reduction unit one is to control support swing speed; The effect of detent one is to be support braking; The effect of angular displacement sensor one is to measure the angle that support swings; The effect of support is supporting laser pendulum injection device two; The effect of support left frame wall is connection reducer transmission shaft; The effect of support left side frame wall is the main shaft of connecting brake; The effect of magnet-sensitive switch one is to control the amplitude that support 2 swings; The effect of beam is vibration damping while putting injection device two swing for laser; The effect of laser pendulum injection device two is to allow Laser emission element with β angular range, come backswing to penetrate laser beam on Y coordinate direction; The effect of motor two is to provide power for Laser emission component holder swings; The effect of speed reduction unit two is to control Laser emission component holder swing speed; The effect of detent two is the brakings of Laser emission component holder; The effect of angular displacement sensor two is to measure the angle that Laser emission component holder swings; The effect of Laser emission seat is fixed laser radiated element; The effect of Laser emission element is Emission Lasers bundle; The effect of magnet-sensitive switch is to control the amplitude that Laser emission component holder swings; The effect of shock-absorbing spring is vibration damping while swinging for Laser emission seat; The effect of laser pickoff is to receive the laser that generating laser sends, the laser line of reference of making for pole center line; The effect of casing is fixed light photosensitive elements and modulation cover; The effect on chassis is fixing casing; The effect of light activated element is the information that provides laser beam to aim at transmissive mirror for detector, improves the speed that laser beam is aimed at transmissive mirror; The effect of modulation cover is to form surrounding to seal lighttight space; The effect of modulation panel is to settle transmissive mirror; The effect of transmissive mirror is to improve the precision that receives laser beam, and allows laser beam irradiation to photosensitive receiving tube; The effect of circuit board is to settle photosensitive receiving tube, electronic component and circuit; The effect of photosensitive receiving tube is the electronic component of accepting laser beam; The effect of cable fixing head is outgoing cable.
Advantage of the present invention is: a kind of photo-electric pole deflection detector and detection method thereof that the present invention proposes, this pick-up unit can detect whole deflection value and the instability status of pole prototype after stressed, for force analysis, optimal design, the quality inspection of pole provides foundation, have advantages of that precision is high, range is large, accuracy is good, simple in structure, easy and simple to handle, cost is low, show in real time data etc.
Accompanying drawing explanation
Fig. 1 is the front elevation of apparatus of the present invention.
Fig. 2 is the vertical view of apparatus of the present invention.
Fig. 3 is the left view of apparatus of the present invention.
Fig. 4 is the front elevation of generating laser.
Fig. 5 is the vertical view of generating laser.
Fig. 6 is the left view of generating laser.
Fig. 7 is the front elevation of laser pickoff.
Fig. 8 is the vertical view of laser pickoff.
Embodiment
A photo-electric pole deflection detector, as Fig. 1, shown in 2 and 3, include pole 1, bearing 3, basis 4, generating laser 11, laser pickoff 41, deflection check-up device, some episcotisters 6, some obliquity sensors 7, carrying hinge 2 and load 5, the lower end of described pole 1 is connected with described bearing 3, bearing 3 is fixed on basis 4, on the lateral surface of the little direction of cross sectional moment of inertia of pole 1, described laser pickoff 41 and an obliquity sensor 7 are settled in upper end, described generating laser 11 and an obliquity sensor 7 are settled in lower end, middle equidistant described episcotister 6 and obliquity sensor 7, the described generating laser 11 of being mounted with, laser pickoff 41, the laser beam that episcotister 6 and obliquity sensor 7 are all positioned on the lateral surface center line 8 of the little direction of cross sectional moment of inertia and generating laser 11 sends can be received by laser pickoff 41 and be tackled by episcotister 6, described some episcotisters 6 are all connected with described deflection check-up device with the output terminal of some obliquity sensors 7, and described load 5 is applied to the upper end of pole 1.
Adopt above-mentioned device to carry out the detection method that photo-electric pole amount of deflection detects, by generating laser 11, give off laser beam and received by laser pickoff 41, by each obliquity sensor 7, measured respectively the angle of inclination of pole 1 two ends and measuring point, by each episcotister 6, measured respectively the distance of measuring point and laser beam, draw the original state of pole 1; At the elementary load application 5 in the upper end of pole 1, often add one-level load 5, by generating laser 11, again given off laser beam, each obliquity sensor 7 is measured respectively the angle of inclination of pole 1 two ends and measuring point again, and each episcotister 6 is in the distance of measuring respectively measuring point and laser beam; All import angle of inclination and the range data measured into processing that deflection check-up device carries out data at every turn, draw the whole amount of deflection of pole 1 in end bearing load 5 situations.
As Fig. 4, 5, shown in 6, described generating laser 11 includes the case 13 being fixed on base 12, on described case 13 end faces, have a window 14, on window 14, be provided with one and insert door 15, in case 13 internal base 12, be mounted with laser pendulum injection device one, described laser pendulum injection device one includes the motor 1 being fixed on successively on base, speed reduction unit 1, the support 25 that is U-shaped groove shape, detent 1 and angular displacement sensor 1, the main shaft of described motor 1 is connected with the main shaft of speed reduction unit 1, the transmission shaft of speed reduction unit 1 is connected with support 25 left frame wall rotating shafts, support 25 left side frame wall rotating shafts are connected with the main shaft of detent 1, the other end of the main shaft of detent 1 is connected with the main shaft of angular displacement sensor 1, between support 25 bottoms and base 12, be lined with beam 27, the both sides, front and back of beam 27 are mounted with respectively magnet-sensitive switch 1, the rotating shaft of support 25 left and right sides is same central axis, support around this central axis with an angle swinging, support 25 bottoms that described laser pendulum injection device two is put injection device one for the laser described are fixed with motor 2 31 successively, speed reduction unit 2 32, Laser emission seat 35, detent 2 33 and angular displacement sensor 2 34, the main shaft of motor 2 31 is connected with the main shaft of speed reduction unit 2 32, the transmission shaft of speed reduction unit 2 32 is connected with the front side rotating shaft of Laser emission seat 35, the rear side rotating shaft of Laser emission seat 35 is connected with the main shaft of detent 2 33, the other end of the main shaft of detent 2 33 is connected with the main shaft of angular displacement sensor 2 34, on described Laser emission seat 35, Laser emission element 36 is installed, in the left and right sides of Laser emission seat 35, be separately installed with shock-absorbing spring 38, two ends, left and right in Laser emission seat 35 bottom surfaces are mounted with respectively magnet-sensitive switch 2 37, the 35 leading flank rotating shafts of Laser emission seat and trailing flank rotating shaft are same central axis, Laser emission seat 35 around this central axis with an angle swinging.
As shown in FIG. 7 and 8, described laser pickoff 41 includes the casing 42 being arranged on chassis 43, casing 42 top board centers have circular hole, the several light activated elements 44 of equidistant installation on the top board of circular hole periphery, in top board inner side, the position concentric with circular hole is provided with cylindrical shape modulation cover 45, between modulation cover 45 tops and casing 42 top boards, modulation panel 46 is installed, bottom is provided with circuit board 48, at modulation panel 46 center, transmissive mirror 47 is installed, circuit board 48 centers are provided with photosensitive receiving tube 49, wherein, luminous energy by transmissive mirror 47 shines on photosensitive receiving tube 49, in casing 42 outsides, be provided with cable fixing head 50.
Claims (3)
1. a photo-electric pole deflection detector carries out the detection method that photo-electric pole amount of deflection detects, it is characterized in that: described photo-electric pole deflection detector includes pole, bearing, basis, generating laser, laser pickoff, deflection check-up device, some episcotisters, some obliquity sensors, carrying hinge and load, the lower end of described pole is connected with described bearing, bearing is fixed on basis, on the lateral surface of the little direction of cross sectional moment of inertia of pole, described laser pickoff and an obliquity sensor are settled in upper end, described generating laser and an obliquity sensor are settled in lower end, the measuring point of middle equidistant placement is all mounted with described episcotister and obliquity sensor, described generating laser, laser pickoff, the laser beam that episcotister and obliquity sensor are all positioned on the lateral surface center line of the little direction of cross sectional moment of inertia and generating laser sends can be received by laser pickoff and be tackled by episcotister, described some episcotisters and the output terminal of some obliquity sensors are all connected with described deflection check-up device, described load is applied to the upper end of pole,
Described device carries out the detection method that photo-electric pole amount of deflection detects, by generating laser, give off laser beam and received by laser pickoff, by each obliquity sensor, measured respectively the angle of inclination of pole two ends and measuring point, by each episcotister, measured respectively the distance of measuring point and laser beam, draw the original state of pole; At the elementary load application in the upper end of pole, often add one-level load, by generating laser, again given off laser beam, each obliquity sensor is measured respectively the angle of inclination of pole two ends and measuring point again, and each episcotister is measured respectively the distance of measuring point and laser beam again; All import angle of inclination and the range data measured into processing that deflection check-up device carries out data at every turn, draw the whole amount of deflection of pole in the bearing load situation of end.
2. photo-electric pole deflection detector according to claim 1 carries out the detection method that photo-electric pole amount of deflection detects, it is characterized in that: described generating laser includes the case being fixed on base, on described case end face, have a window, on window, be provided with one and insert door, in case internal base, be mounted with laser pendulum injection device one, described laser pendulum injection device one includes the motor one being fixed on successively on base, speed reduction unit one, the support that is U-shaped groove shape, detent one and angular displacement sensor one, the main shaft of described motor one is connected with the main shaft of speed reduction unit one, the transmission shaft of speed reduction unit one is connected with the rotating shaft of support left frame wall, the rotating shaft of support left side frame wall is connected with the main shaft of detent one, the other end of the main shaft of detent one is connected with the main shaft of angular displacement sensor one, between frame bottom and base, be lined with beam, the both sides, front and back of beam are mounted with respectively magnet-sensitive switch one, the rotating shaft of the support left and right sides is same central axis, the frame bottom that described laser pendulum injection device two is put injection device one for the laser described is fixed with motor two successively, speed reduction unit two, Laser emission seat, detent two and angular displacement sensor two, the main shaft of motor two is connected with the main shaft of speed reduction unit two, the transmission shaft of speed reduction unit two is connected with the front side rotating shaft of Laser emission seat, the rear side rotating shaft of Laser emission seat is connected with the main shaft of detent two, the other end of the main shaft of detent two is connected with the main shaft of angular displacement sensor two, on described Laser emission seat, Laser emission element is installed, in the left and right sides of Laser emission seat, be separately installed with shock-absorbing spring, two ends, left and right in Laser emission seat bottom surface are mounted with respectively magnet-sensitive switch two, the leading flank rotating shaft of Laser emission seat and trailing flank rotating shaft are same central axis.
3. photo-electric pole deflection detector according to claim 1 carries out the detection method that photo-electric pole amount of deflection detects, it is characterized in that: described laser pickoff includes the casing being arranged on chassis, casing top board center has circular hole, the several light activated elements of equidistant installation on the top board of circular hole periphery, in top board inner side, the position concentric with circular hole is provided with cylindrical shape modulation cover, between modulation cover top and casing top board, modulation panel is installed, bottom is provided with circuit board, center at modulation panel is provided with transmissive mirror, circuit board center is provided with photosensitive receiving tube, wherein, luminous energy by transmissive mirror shines on photosensitive receiving tube, in casing outside, be provided with cable fixing head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210153900.0A CN102749037B (en) | 2012-05-17 | 2012-05-17 | Photoelectric type derrick deflection detection device and detection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210153900.0A CN102749037B (en) | 2012-05-17 | 2012-05-17 | Photoelectric type derrick deflection detection device and detection method thereof |
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| Publication Number | Publication Date |
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| CN102749037A CN102749037A (en) | 2012-10-24 |
| CN102749037B true CN102749037B (en) | 2014-11-05 |
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| CN201210153900.0A Expired - Fee Related CN102749037B (en) | 2012-05-17 | 2012-05-17 | Photoelectric type derrick deflection detection device and detection method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108050951A (en) * | 2017-12-27 | 2018-05-18 | 海宁文硕科技咨询有限公司 | A kind of busbar in high tension distribution system stretches amount detection systems |
| CN108168437A (en) * | 2017-12-27 | 2018-06-15 | 海宁文硕科技咨询有限公司 | A kind of busbar in high tension distribution system stretches quantity measuring method |
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| CN105387839A (en) * | 2015-12-22 | 2016-03-09 | 上海锅炉厂有限公司 | Pipe deflection measuring device and measuring method |
| CN105758325B (en) * | 2016-04-28 | 2018-01-26 | 杭州凯达电力建设有限公司 | A kind of pole distortion measurement instrument |
| CN112014043B (en) * | 2020-08-19 | 2023-01-31 | 江苏方天电力技术有限公司 | Digital large plate girder deflection measuring device and method |
| CN112066949B (en) * | 2020-09-17 | 2021-05-07 | 金华一纵一横工业设计有限公司 | Slope monitoring and early warning system for industrial Internet of things construction |
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| CN108168437A (en) * | 2017-12-27 | 2018-06-15 | 海宁文硕科技咨询有限公司 | A kind of busbar in high tension distribution system stretches quantity measuring method |
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| CN102749037A (en) | 2012-10-24 |
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