CN114964094A - Device and method for rapidly detecting concrete cracks for unmanned aerial vehicle - Google Patents
Device and method for rapidly detecting concrete cracks for unmanned aerial vehicle Download PDFInfo
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- CN114964094A CN114964094A CN202210526236.3A CN202210526236A CN114964094A CN 114964094 A CN114964094 A CN 114964094A CN 202210526236 A CN202210526236 A CN 202210526236A CN 114964094 A CN114964094 A CN 114964094A
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- 238000000034 method Methods 0.000 title claims description 7
- 238000001514 detection method Methods 0.000 claims abstract description 42
- 230000000670 limiting effect Effects 0.000 claims description 42
- 238000009434 installation Methods 0.000 claims description 34
- 238000005452 bending Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims 2
- 238000012031 short term test Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000013585 weight reducing agent Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
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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
- G01B21/02—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 length, width, or thickness
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C39/00—Aircraft not otherwise provided for
- B64C39/02—Aircraft not otherwise provided for characterised by special use
- B64C39/028—Micro-sized aircraft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D43/00—Arrangements or adaptations of instruments
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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
- G01B21/16—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 distance of clearance between spaced objects
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Abstract
The invention discloses a device for rapidly detecting concrete cracks by an unmanned aerial vehicle and a detection method thereof, relates to the field related to concrete crack detection, and aims to solve the problems that the existing device needs to be adsorbed on the surface of concrete by a sucker, then the driving structure of the unmanned aerial vehicle is stopped, and then detection is carried out, and the device cannot normally adsorb some surfaces with uneven surfaces or even arc surfaces, and cannot completely measure the surface crack due to the fact that the unmanned aerial vehicle stops driving when the gap at a detection position is too long; or when the detection gap penetrates through the arc surface of the vertical surface, the detection cannot be performed normally. The lower extreme welded fastening of fixed riser has the fixed disk, the bar fluting has been seted up to one side of fixed riser lateral surface, be provided with spacing tooth portion in the bar fluting, the outside sliding connection of fixed riser has vertical carriage, be provided with the opening on the vertical carriage, vertical carriage open end welded fastening has the fixed page, two be connected with driven gear through axle rotation between the fixed page.
Description
Technical Field
The invention relates to the field related to concrete crack detection, in particular to a device for rapidly detecting concrete cracks by an unmanned aerial vehicle and a detection method thereof.
Background
With the continuous development of the aerial photography technology and the remote sensing technology, the unmanned aerial vehicle is applied to more fields of various industries and can be applied to the fields of highway bridge detection, line inspection and the like. The bridge detection can ensure the use safety of the bridge, early detect bridge diseases and abnormal phenomena, provide scientific basis for the maintenance and the repair of the bridge, adopt a reasonable maintenance and reinforcement method in due time, prolong the service life of the bridge and improve the bearing capacity of the bridge.
For example, chinese granted patent publication No. CN 110145989B (unmanned aerial vehicle-based concrete crack detection apparatus and detection method): the crack detection mechanism comprises a rotary driving motor fixed on the unmanned aerial vehicle body, a camera and a measuring scale, wherein the camera and the measuring scale are fixed on the unmanned aerial vehicle body and face one side of a crack to be detected, the output end of the rotary driving motor is connected with the measuring scale through a rotating shaft, and the measuring scale is attached to the surface of the concrete at the crack to be detected. According to the unmanned aerial vehicle-based concrete crack detection device with the structure, the crack detection mechanism with the rotatable measuring scale is arranged, so that the length and the width of a crack can be directly read through the measuring scale, a large amount of data processing in the later period is not needed, and the measuring method is simple; the three-dimensional space position information of the crack is recorded by arranging the positioning mechanism, so that the long-term tracking observation of the crack is realized.
Although the prior art has the function of gap detection, the unmanned aerial vehicle needs to be adsorbed on the surface of concrete through a sucker, then the driving structure of the unmanned aerial vehicle is stopped, and then detection is carried out, so that the unmanned aerial vehicle cannot be normally adsorbed on some surfaces with uneven surfaces or even arc surfaces, and the unmanned aerial vehicle cannot completely measure due to the fact that the unmanned aerial vehicle stops driving when a gap at a detection position is too long; or when the detection gap penetrates through the arc surface of the vertical surface, normal detection cannot be carried out.
Disclosure of Invention
The invention aims to provide a device for rapidly detecting concrete cracks for an unmanned aerial vehicle and a detection method thereof, which aim to solve the problems that the existing device proposed in the background technology needs to be adsorbed on the surface of concrete through a sucker, then a driving structure of the unmanned aerial vehicle is stopped, and then detection is carried out, and the device cannot be used for completely measuring the cracks due to the fact that the unmanned aerial vehicle stops driving when the gaps at the detection positions are too long and cannot be normally adsorbed on the surfaces with uneven surfaces or even arc surfaces; or when the detection gap penetrates through the arc surface of the vertical surface, the detection cannot be performed normally.
In order to achieve the purpose, the invention provides the following technical scheme: a device for rapidly detecting concrete cracks for an unmanned aerial vehicle comprises an installation support and a fixed vertical pipe, wherein the lower end of the fixed vertical pipe is fixedly welded with a fixed disc, one side of the outer side surface of the fixed vertical pipe is provided with a strip-shaped groove, a limit tooth part is arranged in the strip-shaped groove, the outer part of the fixed vertical pipe is connected with a vertical sliding frame in a sliding manner, an opening is arranged on the vertical sliding frame, a fixed page is fixedly welded at the opening end of the vertical sliding frame, a driven gear is rotatably connected between the two fixed pages through a shaft and is meshed with the limit tooth part, one side of the fixed vertical pipe is provided with a vertical moving support, the vertical moving support comprises a working table, the front end and the rear end of the lower end of the working table are fixedly welded with fixed vertical plates, the fixed vertical plates are fixedly welded with the fixed pages, and two sides of the lower end of the working table are fixedly welded with second bearing seats, and a driving worm is rotatably connected between the two second bearing seats, the driving worm is meshed with the driven gear, a third driving motor is installed on the outer side of the second bearing seat, and the output shaft end of the third driving motor penetrates through the outer side of the second bearing seat to be connected with the driving worm.
Preferably, the mounting bracket comprises a mounting horizontal plate, a first mounting groove is formed in the mounting horizontal plate, the first mounting groove penetrates through the mounting horizontal plate, four first mounting grooves are formed in the first mounting groove, a first mounting sliding frame is connected to the first mounting groove in a longitudinal sliding mode, a second mounting groove is formed in the first mounting sliding frame, the second mounting groove penetrates through the first mounting sliding frame, a second mounting sliding frame is connected to the second mounting groove in a horizontal sliding mode, a fixed rectangular groove is formed in the second mounting sliding frame, the fixed rectangular groove penetrates through the second mounting sliding frame, a fixing screw is arranged in the fixed rectangular groove, and a fixing nut is connected to the outer portion of the fixing screw through threads.
Preferably, a first limiting groove is formed in the outer side in the middle of the first mounting groove, a first limiting frame is welded in the middle of the outer side of the first mounting sliding frame and slides along the first limiting groove, a second limiting groove is formed in the outer side in the middle of the second mounting groove, a second limiting frame is welded in the middle of the outer side of the second mounting sliding frame and slides along the second limiting groove.
Preferably, the mounting bracket further comprises a connecting horizontal plate and a connecting vertical plate, the connecting vertical plate is located on two sides of the upper end of the connecting horizontal plate, the mounting horizontal plate is located on the upper end of the outer side of the connecting vertical plate, and the mounting horizontal plate, the connecting horizontal plate and the connecting vertical plate are welded and fixed adjacently.
Preferably, the middle of the lower end of the connecting horizontal plate is rotatably connected with an adjusting gear through a shaft, one side of the adjusting gear is meshed with a driving gear, the upper end and the lower end of the adjusting gear are fixedly connected with limit discs, the inner end faces of the limit discs are attached to the driving gear, the upper end of the connecting horizontal plate is provided with a first driving motor, and the output shaft end of the first driving motor penetrates through the connecting horizontal plate to be connected with the driving gear.
Preferably, the lower end of the adjusting gear is fixedly connected with a rotating disc through a shaft, first bearing seats are fixedly welded on two sides of the lower end of the rotating disc, a middle driving screw is rotatably connected between the two first bearing seats, horizontal limiting sliding rods are arranged between the two first bearing seats along the upper end and the lower end of the middle driving screw, a second driving motor is installed on the outer side of the first bearing seat on one side, and the output shaft end of the second driving motor penetrates through the first bearing seats to be connected with the middle driving screw.
Preferably, a horizontal sliding assembly is welded and fixed to the upper end of the fixed vertical pipe, the horizontal sliding assembly is in threaded connection with the middle driving screw through a threaded hole, the horizontal sliding assembly is in sliding connection with a horizontal limiting sliding rod through a limiting sliding hole, the horizontal sliding assembly is in sliding connection with the rotating disc through a sliding portion, a weight reduction groove penetrates through the horizontal sliding assembly, and the weight reduction groove is located at the lower end of the threaded hole and the lower end of the limiting sliding hole.
Preferably, the fixed vertical pipe is internally provided with a middle cavity, and the upper end of the working table is provided with a gap detector.
A method of detection comprising the steps of:
the method comprises the following steps: the first installation sliding frame is pulled along the first installation groove, the second installation sliding frame is pulled along the second installation groove until a fixed rectangular groove of the second installation sliding frame is aligned with a hole in an installation position of the unmanned aerial vehicle, the device is fixed on the unmanned aerial vehicle through a fixing screw and a fixing nut, and the unmanned aerial vehicle is controlled to take off for gap detection;
step two: when a vertical gap is detected, the third driving motor drives the driving worm to rotate, the driven gear is driven to rotate through the meshing connection relationship between the driving worm and the driven gear, the driven gear pulls the vertical sliding frame to move up and down along the fixed vertical pipe through the meshing relationship between the driven gear and the limiting tooth part on the fixed vertical pipe and the effect that the fixed vertical pipe is fixed, the gap detector moves synchronously, and the gap is detected from top to bottom;
step three: when a vertically bent crack is detected, the second driving motor drives the middle driving screw to rotate, and the horizontal sliding assembly drives the lower fixing vertical pipe to move towards the direction far away from or close to the crack; meanwhile, the third driving motor drives the driving worm to rotate, so that the gap detector moves up and down to detect, the gap detector is driven to move downwards and to a position far away from the gap when the gap bends outwards, and the gap detector is driven to move downwards and to a position close to the gap when the gap bends inwards;
step four: when a crack bent obliquely below is detected, the second driving motor and the third driving motor drive each structure to act, meanwhile, the first driving motor drives the driving gear to act, the adjusting gear is driven to rotate through the meshing relation of the driving gear and the adjusting gear, the rotating disc and the lower structure of the rotating disc synchronously rotate, the gap detector is driven to move downwards and to the position far away from the gap or the gap detector is driven to move downwards and to the position close to the gap and simultaneously rotates, and the gap detector moves along the bending direction obliquely below the gap.
Compared with the prior art, the invention has the beneficial effects that:
1. in the invention, when a vertical gap is detected, the third driving motor drives the driving worm to rotate, the driven gear is driven to rotate through the meshing connection relationship between the driving worm and the driven gear, the driven gear pulls the vertical sliding frame to move up and down along the fixed vertical pipe through the meshing relationship between the driven gear and the limiting tooth part on the fixed vertical pipe and the action that the fixed vertical pipe is fixed, the gap detector synchronously moves to detect the gap from top to bottom, the gap detector accords with the condition that the modern concrete engineering is downward cracked under the influence of tensile force and gravity, can detect under the condition that the unmanned aerial vehicle is fixed in a stable position, does not need the action of the unmanned aerial vehicle, reduces the condition that the detection effect is poor due to the fact that the lower structure is driven to shake when the unmanned aerial vehicle acts, solves the problem that the existing device needs to be adsorbed on the surface of concrete through a sucking disc, then stops the driving structure of the unmanned aerial vehicle and then detects, when the gap at the position is detected to be too long, the unmanned aerial vehicle stops driving, so that complete measurement cannot be carried out; and the drive worm can lock driven gear, and under the state that drive worm is not driven, driven gear can not roll down because of the influence of gravity, reduces fixed knot and constructs's setting.
2. In the invention, when a vertically bent crack is detected, the second driving motor drives the middle driving screw rod to rotate, and the horizontal sliding assembly drives the lower fixing vertical pipe to move towards the direction far away from or close to the crack; and meanwhile, the third driving motor drives the driving worm to rotate, so that the gap detector moves up and down to detect, the gap detector is driven to move downwards and to a position far away from the gap when the gap bends outwards, and the gap detector is driven to move downwards and to a position close to the gap when the gap bends inwards. When a crack bent obliquely below is detected, the second driving motor and the third driving motor drive each structure to act, meanwhile, the first driving motor drives the driving gear to act, the adjusting gear is driven to rotate through the meshing relation of the driving gear and the adjusting gear, the rotating disc and the lower structure of the rotating disc synchronously rotate, the gap detector is driven to move downwards and to the position far away from the gap or the gap detector is driven to move downwards and to the position close to the gap and simultaneously rotates, and the gap detector moves along the bending direction obliquely below the gap. Through the cooperation of the rotating mechanism and the horizontal driving mechanism, the cooperation measurement of the vertically bent crack and the obliquely downward bent crack is realized, and the condition that the measurement is inaccurate due to the fact that the three-dimensional crack is subjected to two-dimensional detection due to direct vertical observation is avoided.
3. In the invention, a first installation sliding frame is pulled along a first installation groove, a second installation sliding frame is pulled along a second installation groove until a fixed rectangular groove of the second installation sliding frame is aligned with a hole at the installation position of the unmanned aerial vehicle, and the device is fixed on the unmanned aerial vehicle through a fixing screw and a fixing nut; the plane adjustment of mounted position is realized through the cooperation of first mounting groove and first installation sliding frame and second mounting groove and second installation sliding frame, makes this device can match different unmanned aerial vehicle's installation, more has the commonality.
Drawings
FIG. 1 is a schematic structural diagram of an apparatus for rapid detection of concrete cracks for unmanned aerial vehicle according to the present invention;
FIG. 2 is an exploded view of a mounting bracket of the apparatus for rapid detection of concrete cracks for unmanned aerial vehicles according to the present invention;
FIG. 3 is an enlarged view of the structure of FIG. 2A according to the present invention;
FIG. 4 is a schematic perspective view of a horizontal sliding assembly of the apparatus for rapid detection of concrete cracks for unmanned aerial vehicle according to the present invention;
FIG. 5 is a schematic perspective view of a fixed vertical pipe of the apparatus for rapid crack detection of concrete for unmanned aerial vehicle according to the present invention;
FIG. 6 is a schematic view of a connection structure of a vertical sliding support, a fixed leaf and a vertical gear of the device for rapidly detecting concrete cracks for an unmanned aerial vehicle according to the present invention;
fig. 7 is a schematic perspective view of a vertical motion bracket of the device for rapidly detecting concrete cracks for the unmanned aerial vehicle of the invention.
In the figure: 1. mounting a bracket; 2. connecting the horizontal plate; 3. connecting a vertical plate; 4. installing a horizontal plate; 5. a first mounting groove; 6. a first limit groove; 7. a first mounting slide frame; 8. a first limit frame; 9. a second mounting groove; 10. a second limit groove; 11. a second mounting slide frame; 12. a second limit frame; 13. fixing the rectangular groove; 14. a set screw; 15. fixing a nut; 16. an adjusting gear; 17. a limiting disc; 18. a first drive motor; 19. a drive gear; 20. rotating the disc; 21. a first bearing housing; 22. a middle drive screw; 23. a horizontal limiting slide bar; 24. a second drive motor; 25. a horizontal sliding assembly; 26. a threaded hole; 27. a limiting slide hole; 28. a sliding part; 29. a weight reduction groove; 30. fixing the vertical pipe; 31. fixing the disc; 32. slotting in a strip shape; 33. a limit tooth part; 34. a middle cavity; 35. a vertical sliding frame; 36. a fixed page; 37. a driven gear; 38. a vertical motion bracket; 39. a work table; 40. a second bearing housing; 41. fixing the vertical plate; 42. driving the worm; 43. a third drive motor; 44. gap detector.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-7, an embodiment of the present invention is shown: a device for rapidly detecting concrete cracks for an unmanned aerial vehicle comprises an installation support 1 and a fixed vertical pipe 30, wherein an intermediate cavity 34 is arranged inside the fixed vertical pipe 30, so that the dead weight of the whole device can be reduced, and the influence of the device on the flight stability of the unmanned aerial vehicle is reduced; the lower end of the fixed vertical pipe 30 is fixedly welded with a fixed disc 31, one side of the outer side surface of the fixed vertical pipe 30 is provided with a strip-shaped open groove 32, a limit tooth part 33 is arranged in the strip-shaped open groove 32, the outer part of the fixed vertical pipe 30 is connected with a vertical sliding frame 35 in a sliding manner, an opening is formed in the vertical sliding frame 35, a fixed leaf 36 is fixedly welded at the opening end of the vertical sliding frame 35, a driven gear 37 is rotatably connected between the two fixed leaves 36 through a shaft, the driven gear 37 is meshed with the limit tooth part 33, and the driven gear 37 pulls the vertical sliding frame 35 to move up and down along the fixed vertical pipe 30 through the meshing relation between the driven gear 37 and the limit tooth part 33 on the fixed vertical pipe 30 and the effect that the fixed vertical pipe 30 is fixed; a vertical movement support 38 is arranged on one side of the fixed vertical pipe 30, the vertical movement support 38 comprises a working table surface 39, a gap detector 44 is arranged at the upper end of the working table surface 39, the gap detection effect is achieved, and a detection instrument commonly used in the market can be directly adopted; fixed riser 41 is fixed in the front and back both ends welded fastening of table surface 39 lower extreme, fixed riser 41 and fixed page 36 welded fastening, the both sides welded fastening of table surface 39 lower extreme has second bearing frame 40, the bottom end point of second bearing frame 40 has certain distance from driven gear 37, do not influence driven gear 37's normal rotation, it is connected with drive worm 42 to rotate between two second bearing frames 40, drive worm 42 and driven gear 37 mesh, drive worm 42 can lock driven gear 37, under the state that drive worm 42 is not driven, driven gear 37 can not roll downwards because of the influence of gravity, reduce fixed knot's setting. And a third driving motor 43 is mounted on the outer side of the outer second bearing seat 40, and the output shaft end of the third driving motor 43 passes through the outer second bearing seat 40 and is connected with the driving worm 42.
Referring to fig. 2 and 3, the mounting bracket 1 includes a mounting horizontal plate 4, a first mounting groove 5 is formed in the mounting horizontal plate 4, the first mounting groove 5 penetrates through the mounting horizontal plate 4, four first mounting grooves 5 are provided, a first mounting sliding frame 7 is longitudinally slidably connected in the first mounting groove 5, a second mounting groove 9 is formed in the first mounting sliding frame 7, the second mounting groove 9 penetrates through the first mounting sliding frame 7, a second mounting sliding frame 11 is horizontally slidably connected in the second mounting groove 9, a fixed rectangular groove 13 is formed in the second mounting sliding frame 11, the fixed rectangular groove 13 penetrates through the second mounting sliding frame 11, a fixing screw 14 is provided in the fixed rectangular groove 13, and a fixing nut 15 is connected to the outside of the fixing screw 14 through threads. A first limiting groove 6 is formed in the outer side of the middle of the first mounting groove 5, a first limiting frame 8 is welded and connected to the middle of the outer side of the first mounting sliding frame 7, the first limiting frame 8 slides along the first limiting groove 6, a second limiting groove 10 is formed in the outer side of the middle of the second mounting groove 9, a second limiting frame 12 is welded and connected to the middle of the outer side of the second mounting sliding frame 11, and the second limiting frame 12 slides along the second limiting groove 10; the first limiting groove 6 has a sliding limiting effect on the first limiting frame 8, and the second limiting groove 10 has a sliding limiting effect on the second mounting sliding frame 11.
The first installation sliding frame 7 is pulled along the first installation groove 5, the second installation sliding frame 11 is pulled along the second installation groove 9 until the fixing rectangular groove 13 of the second installation sliding frame 11 is aligned with the hole of the installation position of the unmanned aerial vehicle, and the device is fixed on the unmanned aerial vehicle through a fixing screw 14 and a fixing nut 15; the plane adjustment of mounted position is realized through the cooperation of first mounting groove 5 and first installation sliding frame 7 and second mounting groove 9 and second installation sliding frame 11, makes this device can match different unmanned aerial vehicle's installation, more has the commonality.
Referring to fig. 2, the mounting bracket 1 further includes a connecting horizontal plate 2 and a connecting vertical plate 3, the connecting vertical plate 3 is located at two sides of the upper end of the connecting horizontal plate 2, the mounting horizontal plate 4 is located at the upper end of the outer side of the connecting vertical plate 3, and the mounting horizontal plate 4, the connecting horizontal plate 2 and the connecting vertical plate 3 are welded and fixed.
Referring to fig. 1, the middle of the lower end of the horizontal plate 2 is rotatably connected with an adjusting gear 16 through a shaft, one side of the adjusting gear 16 is engaged with a driving gear 19, the upper end and the lower end of the adjusting gear 16 are fixedly connected with a limiting disc 17, and the inner end surface of the limiting disc 17 is attached to the driving gear 19, so that the situation of shaking up and down and rotating is avoided; the upper end of the connecting horizontal plate 2 is provided with a first driving motor 18, and the output shaft end of the first driving motor 18 penetrates through the connecting horizontal plate 2 to be connected with a driving gear 19; the lower end of the adjusting gear 16 is fixedly connected with a rotating disc 20 through a shaft, and the rotation of the adjusting gear 16 can directly drive the rotating disc 20 to rotate, so that the position adjustment of each structure at the lower end of the rotating disc 20 is realized.
Referring to fig. 1 and 4, first bearing seats 21 are fixedly welded to two sides of the lower end of a rotating disc 20, a middle driving screw 22 is rotatably connected between the two first bearing seats 21, horizontal limiting slide bars 23 are respectively arranged between the two first bearing seats 21 along the upper end and the lower end of the middle driving screw 22, a second driving motor 24 is installed on the outer side of the first bearing seat 21 on one side, and an output shaft end of the second driving motor 24 penetrates through the first bearing seats 21 and is connected with the middle driving screw 22; the upper end of the fixed vertical pipe 30 is fixedly welded with a horizontal sliding assembly 25, the horizontal sliding assembly 25 is in threaded connection with the middle driving screw 22 through a threaded hole 26, the horizontal sliding assembly 25 is in sliding connection with a horizontal limiting sliding rod 23 through a limiting sliding hole 27, the horizontal sliding assembly 25 is in sliding connection with the rotating disc 20 through a sliding part 28, a weight reducing groove 29 is formed in the horizontal sliding assembly 25 in a penetrating mode, the self weight of the device is reduced, and the weight reducing groove 29 is located at the lower end of the threaded hole 26 and the limiting sliding hole 27.
Gap detection:
controlling the unmanned aerial vehicle to take off for gap detection;
when a vertical gap is detected, the third driving motor 43 drives the driving worm 42 to rotate, the driven gear 37 is driven to rotate through the meshing connection relationship between the driving worm 42 and the driven gear 37, the driven gear 37 pulls the vertical sliding frame 35 to move up and down along the fixed vertical pipe 30 through the meshing relationship between the driven gear 37 and the upper limiting tooth part 33 of the fixed vertical pipe 30 and the effect that the fixed vertical pipe 30 is fixed, the gap detector 44 moves synchronously, and the gap is detected from top to bottom;
when a vertically bent crack is detected, the second driving motor 24 drives the middle driving screw 22 to rotate, and the horizontal sliding assembly 25 drives the lower fixed vertical pipe 30 to move in a direction away from the crack or close to the crack; meanwhile, the third driving motor 43 drives the driving worm 42 to rotate, so that the gap detector 44 moves up and down for detection, the gap detector 44 is driven to move downwards and to a position far away from the gap when the gap is in an outward bending position, and the gap detector 44 is driven to move downwards and to a position close to the gap when the gap is in an inward bending position;
when a crack bent obliquely below is detected, the second driving motor 24 and the third driving motor 43 drive the structures to move, the first driving motor 18 drives the driving gear 19 to move, the adjusting gear 16 is driven to rotate through the meshing relationship between the driving gear 19 and the adjusting gear 16, the rotating disc 20 and the lower structures thereof synchronously rotate, and the gap detector 44 is driven to move downwards and towards a position far away from the gap or the gap detector 44 is driven to rotate downwards and towards a position close to the gap and moves along the bending direction obliquely below the gap.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. The utility model provides an unmanned aerial vehicle is with device of short-term test concrete crack, includes installing support (1) and fixed riser (30), its characterized in that: the lower end of the fixed vertical pipe (30) is fixedly welded with a fixed disc (31), one side of the outer side surface of the fixed vertical pipe (30) is provided with a strip-shaped slot (32), a limit tooth part (33) is arranged in the strip-shaped slot (32), the outer part of the fixed vertical pipe (30) is connected with a vertical sliding frame (35) in a sliding manner, an opening is arranged on the vertical sliding frame (35), a fixed leaf (36) is fixedly welded at the opening end of the vertical sliding frame (35), a driven gear (37) is rotatably connected between the two fixed leaves (36) through a shaft, the driven gear (37) is meshed with the limit tooth part (33), one side of the fixed vertical pipe (30) is provided with a vertical moving support (38), the vertical moving support (38) comprises a working table top (39), and fixed vertical plates (41) are fixedly welded at the front end and the rear end of the lower end of the working table top (39), the fixed vertical plate (41) is fixedly welded with the fixed page (36), second bearing seats (40) are fixedly welded on two sides of the lower end of the working table top (39), a driving worm (42) is rotatably connected between the two second bearing seats (40), the driving worm (42) is meshed with the driven gear (37), a third driving motor (43) is installed on the outer side of the second bearing seat (40) on the outer side, and the output shaft end of the third driving motor (43) penetrates through the second bearing seat (40) on the outer side to be connected with the driving worm (42).
2. The device for rapidly detecting the concrete cracks for the unmanned aerial vehicle as claimed in claim 1, wherein: the mounting bracket (1) comprises a mounting horizontal plate (4), a first mounting groove (5) is formed in the mounting horizontal plate (4), the first mounting groove (5) penetrates through the mounting horizontal plate (4), four first mounting grooves (5) are arranged, a first mounting sliding frame (7) is longitudinally connected in the first mounting groove (5) in a sliding manner, a second mounting groove (9) is arranged in the first mounting sliding frame (7), the second mounting groove (9) penetrates through the first mounting sliding frame (7), a second mounting sliding frame (11) is connected with the inner water surface of the second mounting groove (9) in a sliding way, a fixed rectangular groove (13) is arranged in the second mounting sliding frame (11), the fixed rectangular groove (13) penetrates through the second mounting sliding frame (11), and a fixing screw (14) is arranged in the fixed rectangular groove (13), and the outside of the fixing screw (14) is connected with a fixing nut (15) through threads.
3. The device for rapidly detecting the concrete cracks for the unmanned aerial vehicle as claimed in claim 2, wherein: first spacing groove (6) have been seted up in the outside in the middle of first mounting groove (5), the middle welded connection in the middle of first installation sliding frame (7) outside has first spacing frame (8), and first spacing frame (8) slide along first spacing groove (6), second spacing groove (10) have been seted up in the outside in the middle of second mounting groove (9), the middle welded connection in the middle of second installation sliding frame (11) outside has second spacing frame (12), and second spacing frame (12) slide along second spacing groove (10).
4. The device for rapidly detecting the concrete cracks for the unmanned aerial vehicle as claimed in claim 3, wherein: the mounting support (1) further comprises a connecting horizontal plate (2) and a connecting vertical plate (3), the connecting vertical plate (3) is located on two sides of the upper end of the connecting horizontal plate (2), the mounting horizontal plate (4) is located on the upper end of the outer side of the connecting vertical plate (3), and the mounting horizontal plate (4), the connecting horizontal plate (2) and the connecting vertical plate (3) are welded and fixed between the adjacent parts.
5. The device for rapidly detecting the concrete cracks for the unmanned aerial vehicle as claimed in claim 4, wherein: the middle of the lower end of the connecting horizontal plate (2) is rotatably connected with an adjusting gear (16) through a shaft, one side of the adjusting gear (16) is meshed with a driving gear (19), the upper end and the lower end of the adjusting gear (16) are fixedly connected with limiting discs (17), the inner end face of each limiting disc (17) is attached to the corresponding driving gear (19), a first driving motor (18) is installed at the upper end of the connecting horizontal plate (2), and the output shaft end of the first driving motor (18) penetrates through the connecting horizontal plate (2) to be connected with the driving gear (19).
6. The device for rapidly detecting the concrete cracks for the unmanned aerial vehicle as claimed in claim 5, wherein: the lower extreme of adjusting gear (16) is through axle fixedly connected with rolling disc (20), both sides welded fastening of rolling disc (20) lower extreme has first bearing frame (21), two the centre between first bearing frame (21) is rotated and is connected with middle drive screw (22), two all be provided with horizontal spacing slide bar (23) along the upper end and the lower extreme of middle drive screw (22) between first bearing frame (21), one side second driving motor (24) are installed to the outside of first bearing frame (21), and the output shaft end of second driving motor (24) passes first bearing frame (21) and is connected with middle drive screw (22).
7. The device for rapidly detecting the concrete cracks for the unmanned aerial vehicle as claimed in claim 6, wherein: the upper end of the fixed vertical pipe (30) is fixedly welded with a horizontal sliding assembly (25), the horizontal sliding assembly (25) is in threaded connection with the middle driving screw (22) through a threaded hole (26), the horizontal sliding assembly (25) is in sliding connection with a horizontal limiting sliding rod (23) through a limiting sliding hole (27), the horizontal sliding assembly (25) is in sliding connection with the rotating disc (20) through a sliding part (28), a weight reducing groove (29) penetrates through the horizontal sliding assembly (25), and the weight reducing groove (29) is located at the lower ends of the threaded hole (26) and the limiting sliding hole (27).
8. The device for unmanned aerial vehicle rapid detection of concrete cracks according to claim 7, characterized in that: the fixed vertical pipe (30) is internally provided with a middle cavity (34), and the upper end of the working table top (39) is provided with a gap detector (44).
9. A detection method is realized by the unmanned aerial vehicle based on the device for rapidly detecting the concrete cracks in claim 8, and is characterized by comprising the following steps:
the method comprises the following steps: the first installation sliding frame (7) is pulled along the first installation groove (5), the second installation sliding frame (11) is pulled along the second installation groove (9) until a fixed rectangular groove (13) of the second installation sliding frame (11) is aligned with a hole in the installation position of the unmanned aerial vehicle, the device is fixed on the unmanned aerial vehicle through a fixing screw (14) and a fixing nut (15), and the unmanned aerial vehicle is controlled to take off for gap detection;
step two: when a vertical gap is detected, the third driving motor (43) drives the driving worm (42) to rotate, the driven gear (37) is driven to rotate through the meshing connection relationship between the driving worm (42) and the driven gear (37), the driven gear (37) pulls the vertical sliding frame (35) to move up and down along the fixed vertical pipe (30) through the meshing relationship between the driven gear (37) and the upper limiting tooth part (33) of the fixed vertical pipe (30) and the effect that the fixed vertical pipe (30) is fixed, the gap detector (44) moves synchronously, and the gap is detected from top to bottom;
step three: when a vertically bent crack is detected, the second driving motor (24) drives the middle driving screw rod (22) to rotate, and the horizontal sliding assembly (25) drives the lower fixed vertical pipe (30) to move towards the direction far away from or close to the crack; meanwhile, the third driving motor (43) drives the driving worm (42) to rotate, so that the gap detector (44) moves up and down for detection, the gap detector (44) is driven to move downwards and to a position far away from the gap when the gap bends outwards, and the gap detector (44) is driven to move downwards and to a position near the gap when the gap bends inwards;
step four: when a crack bent obliquely below is detected, the second driving motor (24) and the third driving motor (43) drive each structure to act, meanwhile, the first driving motor (18) drives the driving gear (19) to act, the adjusting gear (16) is driven to rotate through the meshing relation of the driving gear (19) and the adjusting gear (16), the rotating disc (20) and the lower structure thereof synchronously rotate, and the gap detector (44) is driven to move downwards and to a position far away from the gap or the gap detector (44) is driven to rotate downwards and to a position close to the gap and moves along the bending direction obliquely below the gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210526236.3A CN114964094A (en) | 2022-05-16 | 2022-05-16 | Device and method for rapidly detecting concrete cracks for unmanned aerial vehicle |
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| CN202210526236.3A CN114964094A (en) | 2022-05-16 | 2022-05-16 | Device and method for rapidly detecting concrete cracks for unmanned aerial vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116929266A (en) * | 2023-09-15 | 2023-10-24 | 山西鸿海工程设计有限公司 | Crack change quantitative monitoring equipment for hydraulic engineering |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116929266A (en) * | 2023-09-15 | 2023-10-24 | 山西鸿海工程设计有限公司 | Crack change quantitative monitoring equipment for hydraulic engineering |
| CN116929266B (en) * | 2023-09-15 | 2023-11-17 | 山西鸿海工程设计有限公司 | Crack change quantitative monitoring equipment for hydraulic engineering |
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