CN114577166B - Bridge cavity crack detector - Google Patents

Bridge cavity crack detector Download PDF

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Publication number
CN114577166B
CN114577166B CN202210220819.3A CN202210220819A CN114577166B CN 114577166 B CN114577166 B CN 114577166B CN 202210220819 A CN202210220819 A CN 202210220819A CN 114577166 B CN114577166 B CN 114577166B
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groups
baffle
fixedly arranged
face
fixed
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CN114577166A (en
Inventor
任士朴
齐勤华
李志双
董凡荣
王松
张斌
李丰
王昭
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Shandong Huajian Engineering Detection Co ltd
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Shandong Huajian Engineering Detection Co ltd
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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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

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Abstract

The invention relates to the technical field of bridge flaw detection, in particular to a bridge cavity crack detector which can fold a device, automatically adjust the movement detection range of a flaw detection head according to bridges with different widths, replace the traditional mode of using long-arm beams to operate and improve the working flexibility of the device; the flaw detection device comprises a frame, a flaw detection head, a connecting plate, a telescopic moving assembly, a steering assembly and a folding assembly, wherein the steering assembly is arranged on the frame, the folding assembly is arranged on the steering assembly, the flaw detection head is fixedly arranged on the upper end face of the connecting plate, the connecting plate is arranged on the telescopic moving assembly, and the telescopic moving assembly is arranged on the folding assembly.

Description

Bridge cavity crack detector
Technical Field
The invention relates to the technical field of bridge flaw detection, in particular to a bridge cavity crack detector.
Background
The bridge is used as a junction of traffic systems such as roads, highways, railways and the like, the bridge needs to be detected and tested regularly, so that the damage condition of the bridge is evaluated, a bridge crack is used as one of the most main bridge diseases, the safe use of the bridge is seriously affected, the accident that the bridge is destroyed and the death of people can occur more seriously, therefore, the detection of the bridge crack is crucial, the bridge detection is mainly carried out in the mode that a group of long-arm cross beams are respectively hoisted at two sides of a bridge deck through two groups of cantilever cranes, the long-arm cross beams are positioned below the bridge, one detection mode is that an operator stands on the long-arm cross beams to detect the bridge crack, and the other detection mode is that a detection device is installed on the long-arm cross beams through a screw slider mechanism, but the operation mode can lead to the difficulty in obstacle avoidance operation of the device in the moving process, the flexibility of the device is poorer, and the use of the long-arm cross beams with different types of lengths are required to be used according to bridges with different widths, so that the use limitation of the device is greatly improved.
Disclosure of Invention
In order to solve the technical problems, the invention provides the bridge cavity crack detector which can fold the device, automatically adjust the moving detection range of the flaw detection head according to bridges with different widths, replace the traditional mode of operating by using long-arm beams and improve the working flexibility of the device.
The invention relates to a bridge cavity crack detector which comprises a frame, a flaw detection head, a connecting plate, a telescopic moving assembly, a steering assembly and a folding assembly, wherein the steering assembly is arranged on the frame, the folding assembly is arranged on the steering assembly, the flaw detection head is fixedly arranged on the upper end surface of the connecting plate, the connecting plate is arranged on the telescopic moving assembly, and the telescopic moving assembly is arranged on the folding assembly.
Preferably, the telescopic moving assembly comprises two groups of first fixing plates, a baffle A, a baffle B, two groups of synchronizing wheels A, two groups of synchronizing wheels B, two groups of synchronizing wheels C, two groups of first sliding bars, a first screw rod, a first sliding block, a special-shaped connecting frame, two groups of synchronizing wheels D, two groups of synchronous belts, a first stepping motor and a second stepping motor, wherein the two groups of first fixing plates are symmetrically and fixedly arranged on the right end face of the baffle A in front-back manner, the baffle B is fixedly arranged on the right end face of the two groups of first fixing plates, the two groups of synchronizing wheels A are respectively and rotatably arranged on the left upper parts of the inner end faces of the two groups of first fixing plates, the two groups of synchronizing wheels B are respectively and rotatably arranged on the left lower parts of the inner end faces of the two groups of first fixing plates, the two groups of synchronizing wheels C are respectively and fixedly arranged between the baffle A and the baffle B in front-back manner, the first screw rod is rotationally arranged between the baffle A and the baffle B, the first sliding block is in sliding connection with two groups of first sliding bars, the first sliding block is in threaded connection with the first screw rod, the special-shaped connecting frame is fixedly arranged on the upper end face of the first sliding block, the two groups of synchronous wheels D are respectively rotationally arranged on the left parts of the front end face and the rear end face of the special-shaped connecting frame, the two groups of synchronous wheels E are respectively rotationally arranged on the right parts of the front end face and the rear end face of the special-shaped connecting frame, the synchronous wheels A, the synchronous wheels B, the synchronous wheels C, the synchronous wheels D and the synchronous wheels E which are positioned on the same side are in transmission connection with each other through synchronous belts, the connecting plate is fixedly arranged on the two groups of synchronous belts, the first stepping motor is fixedly arranged on the left end face of the baffle A, the output end of the first stepping motor is fixedly connected with the left end of the first screw rod, the second stepping motor is fixedly arranged on the front end face of the front first fixing plate, the output end of the second stepping motor is fixedly connected with the front synchronous wheel B; the synchronous wheel B at the front part rotates under the drive of a second stepping motor, and under the cooperation of synchronous wheel C, synchronous wheel A, synchronous wheel D and synchronous wheel E, can make the hold-in range drive the connecting plate and remove, thereby make the detection head of detecting a flaw can move automatically, and first lead screw rotates under the drive of first stepping motor, and under the cooperation of first slide bar and first slider use, can make special-shaped link drive synchronous wheel D and synchronous wheel E and carry out lateral shifting, and then make the hold-in range that is in between synchronous wheel A and the synchronous wheel E can stretch out and draw back, thereby can increase the detection head lateral shifting's that detects a flaw, make the device can carry out crack detection to the bridge of different width, replace the tradition and carry out the mode of operation through using long arm roof beam, improve the flexibility of device work.
Preferably, the folding assembly comprises a supporting plate, two groups of second fixing plates, a baffle C, a baffle D, two groups of second sliding bars, a second screw rod, a first speed reducing motor, a second sliding block, a first connecting block, a connecting arm, two groups of fixed shafts and an adjusting assembly, wherein the two groups of second fixing plates are symmetrically and fixedly arranged on the upper end face of the supporting plate, the baffle C is fixedly arranged on the right end face of the two groups of second fixing plates, the baffle D is fixedly arranged on the left part of the upper end face of the two groups of second fixing plates, the two groups of second sliding bars are symmetrically and fixedly arranged between the baffle D and the baffle C, the second screw rod is rotatably arranged between the baffle D and the baffle C, the first speed reducing motor is fixedly arranged on the right end face of the baffle C, the output end of the first gear motor is fixedly connected with a second lead screw, the second sliding block is in sliding connection with two groups of second sliding bars, the second sliding block is in threaded connection with the second lead screw, the first connecting block is fixedly arranged on the lower end face of the second sliding block, a sliding groove and a limiting groove are formed in the second fixing plate, the sliding groove and the limiting groove are mutually vertical and communicated, the two groups of fixing shafts penetrate through and are fixedly arranged on the connecting arm, a first U-shaped groove is formed in the upper portion of the connecting arm, the fixing shaft on the upper portion penetrates through the first connecting block and is in rotating connection with the first connecting block, the first connecting block is positioned in the first U-shaped groove, the two groups of fixing shafts can be in sliding connection with the sliding groove and the limiting groove, and the adjusting component is arranged on the lower portion of the connecting arm; when the fixed axle of lower part is in the spacing inslot, the fixed axle of upper portion is in the left portion of spout, the linking arm is in vertical state this moment, the second lead screw rotates under first gear motor's drive, and under the cooperation use through the second smooth thick stick, make the second slider drive first linkage piece remove rightwards, thereby make the fixed axle of upper portion remove rightwards, the fixed axle of lower part upwards removes along the spacing groove this moment, when two sets of fixed axles all are in the spout inside, the linking arm is in horizontal state this moment, the second slider drives first linkage piece and continues to remove rightwards, thereby make the linking arm remove rightwards, and then make the device fold, reduce the area of device.
Preferably, the adjusting component comprises a connecting shaft, a second connecting block, a fixed box, a T-shaped shaft, a rotating plate and a second gear motor, wherein the lower end of the connecting arm is provided with a second U-shaped groove, the connecting shaft penetrates through and is fixedly arranged on the second connecting block, the connecting shaft is rotatably arranged in the second U-shaped groove, the fixed box is fixedly arranged on the right end face of the second connecting block, the T-shaped shaft is fixedly arranged on the upper end face of the rotating plate, the rotating plate is fixedly arranged on the left part of the upper end faces of the two groups of first fixed plates, the upper end of the T-shaped shaft is rotatably arranged in the fixed box, the first gear motor is fixedly arranged in the fixed box, the output end of the second gear motor is fixedly connected with the upper end of the T-shaped shaft, the third gear motor is fixedly arranged on the front end face of the connecting arm, and the output end of the third gear motor is fixedly connected with the connecting shaft; the T-shaped shaft drives the rotating plate to rotate under the driving of the second gear motor, so that the two groups of first fixing plates can rotate, the device can conveniently avoid obstacles in the detection process, the connecting shaft drives the second connecting block to rotate under the driving of the third gear motor, and the first fixing plates can rotate along the connecting shaft under the connecting action of the fixing box, the T-shaped shaft and the rotating plate, so that the device can further fold, and the operability of the device is improved.
Preferably, the steering assembly comprises a support shaft, a first bevel gear, a motor and a second bevel gear, wherein the support shaft is rotatably arranged on the frame, the support plate is fixedly arranged at the upper end of the support shaft, the first bevel gear is fixedly arranged on the support shaft, the motor is fixedly arranged on the frame, the second bevel gear is fixedly connected with the output end of the motor, and the second bevel gear is meshed with the connecting arm; the second bevel gear rotates under the drive of motor to under the transmission connection effect through first bevel gear, make the back shaft drive the backup pad and rotate, and then can turn to adjusting linking arm, fixed box and first fixed plate, thereby be convenient for the device and carry out the conversion between work and the non-work two kinds of states, further improve the operability of device.
Preferably, the box cover also comprises a box cover, wherein the box cover fixing cover is arranged at the upper end of the fixing box; through setting up the case lid, can be convenient for open fixed case to the convenience overhauls second gear motor and T type axle, improves the convenience that the device used.
Preferably, the two groups of synchronous wheels D are fixedly connected with each other through a group of wheel shafts, and the two groups of synchronous wheels E are fixedly connected with each other through a group of wheel shafts; through two sets of synchronizing wheels D, two sets of synchronizing wheels E fixed connection, can improve the synchronism of two sets of hold-in range connection transmission to make the connecting plate can carry out steady removal, improve the stationarity of device operation.
Preferably, a reinforcing rib is arranged at the joint between the support shaft and the support plate; through setting up the strengthening rib, can increase the joint strength between backup pad and the back shaft, reduce the cracked condition of taking place between the two, improve the working strength of device.
Compared with the prior art, the invention has the beneficial effects that: the front synchronous wheel B rotates under the drive of the second stepping motor, and under the matched use of the synchronous wheel C, the synchronous wheel A, the synchronous wheel D and the synchronous wheel E, the synchronous belt can drive the connecting plate to move, so that the flaw detection head can automatically move, the first lead screw rotates under the drive of the first stepping motor, and under the matched use of the first sliding bar and the first sliding block, the special-shaped connecting frame can drive the synchronous wheel D and the synchronous wheel E to transversely move, so that the part of the synchronous belt between the synchronous wheel A and the synchronous wheel E can stretch, the transverse movement range of the flaw detection head can be enlarged, the device can detect cracks of bridges with different widths, a traditional mode of operating by using long-arm beams is replaced, and the working flexibility of the device is improved; when the fixed shaft at the lower part is in the limit groove, the fixed shaft at the upper part is at the leftmost part of the chute, the connecting arm is in a vertical state, the second lead screw rotates under the drive of the first gear motor, and under the cooperation of the second sliding bar, the second slider drives the first connecting block to move rightwards, thereby the fixed shaft at the upper part moves rightwards, at the moment, the fixed shaft at the lower part moves upwards along the limit groove, when two groups of fixed shafts are all in the inside of the chute, the connecting arm is in a horizontal state, the second slider drives the first connecting block to continue to move rightwards, thereby the connecting arm moves rightwards, and the connecting shaft drives the second connecting block to rotate under the drive of the third gear motor, and under the connecting action of the fixed box, the T-shaped shaft and the rotating plate, the first fixed plate can rotate along the connecting shaft, and the device can be folded.
Drawings
FIG. 1 is a schematic illustration of an axially measured structure of the present invention in an operative condition;
FIG. 2 is a schematic illustration of the axially oriented structure of the present invention in an inactive state;
FIG. 3 is a schematic view of a first partial isometric construction of the present invention;
FIG. 4 is a schematic view of a second partial isometric construction of the present invention;
the reference numerals in the drawings: 1. a frame; 2. flaw detection head; 3. a connecting plate; 4. a first fixing plate; 5. a baffle A; 6. a baffle B; 7. a synchronizing wheel A; 8. a synchronizing wheel B; 9. a synchronizing wheel C; 10. a first slide bar; 11. a first lead screw; 12. a first slider; 13. a special-shaped connecting frame; 14. a synchronizing wheel D; 15. a synchronizing wheel E; 16. a synchronous belt; 17. a first stepping motor; 18. a second stepping motor; 19. a support plate; 20. a second fixing plate; 21. a baffle C; 22. a baffle D; 23. a second slide bar; 24. a second lead screw; 25. a first gear motor; 26. a second slider; 27. a first connection block; 28. a connecting arm; 29. a fixed shaft; 30. a connecting shaft; 31. a second connection block; 32. a fixed box; 33. a T-shaped shaft; 34. a rotating plate; 35. a second gear motor; 36. a third gear motor; 37. a support shaft; 38. a first bevel gear; 39. a motor; 40. a second bevel gear; 41. a case cover.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. This invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Example 1
As shown in fig. 1 to 4, a support shaft 37 is rotatably mounted on the frame 1, a support plate 19 is fixedly mounted on the upper end of the support shaft 37, a first bevel gear 38 is fixedly mounted on the support shaft 37, a motor 39 is fixedly mounted on the frame 1, a second bevel gear 40 is fixedly connected with the output end of the motor 39, and the second bevel gear 40 is meshed with the connecting arm 28, two sets of second fixing plates 20 are symmetrically mounted on the upper end surface of the support plate 19 front and back, a baffle C21 is fixedly mounted on the right end surfaces of the two sets of second fixing plates 20, a baffle D22 is fixedly mounted on the left part of the upper end surfaces of the two sets of second fixing plates 20, two sets of second slide bars 23 are symmetrically mounted between the baffle D22 and the baffle C21 front and back, a second lead screw 24 is rotatably mounted between the baffle D22 and the baffle C21, a first speed reducing motor 25 is fixedly mounted on the right end surface of the baffle C21, and the output end of the first speed reducing motor 25 is fixedly connected with the second lead screw 24, the second slide block 26 is in sliding connection with two groups of second slide bars 23, the second slide block 26 is in threaded connection with the second lead screw 24, the first connecting block 27 is fixedly arranged on the lower end face of the second slide block 26, the second fixing plate 20 is provided with a sliding groove and a limiting groove, the sliding groove and the limiting groove are mutually vertical and communicated, two groups of fixing shafts 29 penetrate through and are fixedly arranged on the connecting arm 28, the upper part of the connecting arm 28 is provided with a first U-shaped groove, the upper fixing shaft 29 penetrates through the first connecting block 27 and is in rotary connection with the first connecting block 27, the first connecting block 27 is positioned in the first U-shaped groove, the two groups of fixing shafts 29 can be in sliding connection with the sliding groove and the limiting groove, the lower end of the connecting arm 28 is provided with a second U-shaped groove, the connecting shaft 30 penetrates through and is fixedly arranged on the second connecting block 31, the connecting shaft 30 is rotatably arranged in the second U-shaped groove, the fixing box 32 is fixedly arranged on the right end face of the second connecting block 31, the T-shaped shaft 33 is fixedly arranged on the upper end face of the rotating plate 34, the rotating plate 34 is fixedly arranged on the left part of the upper end faces of the two groups of first fixed plates 4, the two groups of first fixed plates 4 are fixedly arranged on the left upper parts of the inner end faces of the two groups of first fixed plates 4 in a front-back symmetrical mode, the upper end of the T-shaped shaft 33 is rotatably arranged in the fixed box 32, the first gear motor 25 is fixedly arranged in the fixed box 32, the output end of the second gear motor 35 is fixedly connected with the upper end of the T-shaped shaft 33, the third gear motor 36 is fixedly arranged on the front end face of the connecting arm 28, the output end of the third gear motor 36 is fixedly connected with the connecting shaft 30, the baffle B6 is fixedly arranged on the right end faces of the two groups of first fixed plates 4, the two groups of synchronous wheels A7 are rotatably arranged on the left upper parts of the inner end faces of the two groups of first fixed plates 4 respectively, the two groups of synchronous wheels B8 are rotatably arranged on the left lower parts of the inner end faces of the two groups of first fixed plates 4 respectively, two groups of synchronous wheels C9 are respectively and rotatably arranged at the right lower parts of the inner side end surfaces of two groups of first fixing plates 4, two groups of first sliding bars 10 are respectively and symmetrically arranged between a baffle A5 and a baffle B6 in a front-back symmetrical manner, a first lead screw 11 is rotatably arranged between the baffle A5 and the baffle B6, a first sliding block 12 is in sliding connection with the two groups of first sliding bars 10, the first sliding block 12 is in threaded connection with the first lead screw 11, a special-shaped connecting frame 13 is fixedly arranged at the upper end surface of the first sliding block 12, two groups of synchronous wheels D14 are respectively and rotatably arranged at the left parts of the front end surface and the rear end surface of the special-shaped connecting frame 13, two groups of synchronous wheels E15 are respectively and rotatably arranged at the right parts of the front end surface and the rear end surface of the special-shaped connecting frame 13, synchronous wheels A7, synchronous wheels B8, synchronous wheels C9, synchronous wheels D14 and synchronous wheels E15 which are positioned at the same side are in a transmission connection through synchronous belts 16, a connecting plate 3 is fixedly arranged on the two groups of synchronous belts 16, a flaw detection head 2 is fixedly arranged at the upper end surface of the connecting plate 3, the first stepping motor 17 is fixedly arranged on the left end face of the baffle A5, the output end of the first stepping motor 17 is fixedly connected with the left end of the first lead screw 11, the second stepping motor 18 is fixedly arranged on the front end face of the front first fixed plate 4, and the output end of the second stepping motor 18 is fixedly connected with the front synchronous wheel B8; firstly, the frame 1 is moved to a working position area, then a motor 39 is started, a second bevel gear 40 rotates under the drive of the motor 39, a supporting shaft 37 drives a supporting plate 19 to rotate under the transmission connection action of a first bevel gear 38, the supporting plate 19 is vertical to a bridge, then a first gear motor 25 is started, a second lead screw 24 rotates under the drive of the first gear motor 25, a second slider 26 drives a first connecting block 27 to move leftwards under the matched use of a second sliding bar 23, a connecting arm 28 moves leftwards under the connection action of two groups of fixed shafts 29, when a lower fixed shaft 29 is positioned in a limiting groove and an upper fixed shaft 29 is positioned at the leftmost part of a sliding groove, the connecting arm 28 is in a vertical state at the moment, then a second gear motor 35 is started, a T-shaped shaft 33 drives a rotating plate 34 to rotate under the drive of the second gear motor 35, so that the two groups of first fixing plates 4 are rotated forwards by 90 degrees, then the third gear motor 36 is started, the connecting shaft 30 drives the second connecting block 31 to rotate under the drive of the third gear motor 36, the first fixing plates 4 rotate along the connecting shaft 30 under the connecting action of the fixing box 32, the T-shaped shaft 33 and the rotating plate 34 until the first fixing plates 4 are mutually perpendicular to the connecting arm 28, then the second gear motor 35 is started again, the two groups of first fixing plates 4 are rotated backwards by 90 degrees, then the first stepping motor 17 is started, the first lead screw 11 is driven by the first stepping motor 17 to rotate, and the special-shaped connecting frame 13 drives the synchronous wheel D14 and the synchronous wheel E15 to synchronously move rightwards under the matched use of the first sliding bar 10 and the first sliding block 12, so that the part of the synchronous belt 16 between the synchronous wheel A7 and the synchronous wheel E15 is stretched, according to the width adjustment flaw detection head 2 of bridge horizontal movement's scope, then start second step motor 18, the synchronizing wheel B8 of front portion rotates under the drive of second step motor 18 to through synchronizing wheel C9, synchronizing wheel A7, synchronizing wheel D14 and synchronizing wheel E15's cooperation use, make hold-in range 16 drive connecting plate 3 move, thereby make flaw detection head 2 begin to carry out the removal detection can.
The bridge cavity crack detector has the advantages that the installation mode, the connection mode or the setting mode are all common mechanical modes, and the bridge cavity crack detector can be implemented as long as the beneficial effects can be achieved; the flaw detection head 2 of the bridge cavity crack detector is purchased in the market, and a person skilled in the art only needs to install and operate according to the attached instruction manual of the flaw detection head, and the creative labor of the person skilled in the art is not required.
All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.

Claims (7)

1. The bridge cavity crack detector is characterized by comprising a frame (1), a flaw detection head (2), a connecting plate (3), a telescopic moving assembly, a steering assembly and a folding assembly, wherein the steering assembly is arranged on the frame (1), the folding assembly is arranged on the steering assembly, the flaw detection head (2) is fixedly arranged on the upper end surface of the connecting plate (3), the connecting plate (3) is arranged on the telescopic moving assembly, and the telescopic moving assembly is arranged on the folding assembly;
the telescopic moving assembly comprises two groups of first fixing plates (4), a baffle A (5), a baffle B (6), two groups of synchronizing wheels A (7), two groups of synchronizing wheels B (8), two groups of synchronizing wheels C (9), two groups of first sliding bars (10), a first screw rod (11), a first sliding block (12), a special-shaped connecting frame (13), two groups of synchronizing wheels D (14), two groups of synchronous belts (16), a first stepping motor (17) and a second stepping motor (18), the two groups of first fixing plates (4) are symmetrically and fixedly arranged on the right end face of the baffle A (5), the baffle B (6) is fixedly arranged on the right end face of the two groups of first fixing plates (4), the two groups of synchronizing wheels A (7) are respectively and rotatably arranged on the left upper parts of the inner end faces of the two groups of first fixing plates (4), the two groups of synchronizing wheels B (8) are respectively and rotatably arranged on the left lower parts of the inner end faces of the two groups of the first fixing plates (4), the two groups of synchronizing wheels C (9) are respectively and rotatably arranged on the right end faces of the two groups of the first sliding bars (10) and the middle sliding bars (10) respectively, the two groups of synchronizing wheels C (9) are respectively and rotatably arranged on the right end faces of the first sliding plates (6) and the middle part of the first sliding plates (10), and first slider (12) and first lead screw (11) threaded connection, dysmorphism link (13) fixed mounting is in the up end of first slider (12), two sets of synchronizing wheel D (14) rotate respectively and install the left portion at both ends face around dysmorphism link (13), two sets of synchronizing wheel E (15) rotate respectively and install the right part at both ends face around dysmorphism link (13) respectively, and be in synchronizing wheel A (7) of same one side, synchronizing wheel B (8), synchronizing wheel C (9), synchronizing wheel D (14) and synchronizing wheel E (15) are through synchronous belt (16) mutual transmission connection, connecting plate (3) fixed mounting is on two sets of synchronizing belt (16), first step motor (17) fixed mounting is at the left end face of baffle A (5), and first step motor (17) output and first lead screw (11) left end fixed connection, second step motor (18) fixed mounting is at the preceding terminal surface of anterior first fixed plate (4), and synchronous wheel B (8) of second step motor (18) output and anterior fixed connection.
2. The bridge cavity crack detector according to claim 1, wherein the folding component comprises a supporting plate (19), two groups of second fixing plates (20), a baffle C (21), a baffle D (22), two groups of second sliding bars (23), a second lead screw (24), a first speed reducing motor (25), a second sliding block (26), a first connecting block (27), a connecting arm (28), two groups of fixing shafts (29) and an adjusting component, the two groups of second fixing plates (20) are symmetrically and fixedly arranged on the upper end face of the supporting plate (19), the baffle C (21) is fixedly arranged on the right end face of the two groups of second fixing plates (20), the baffle D (22) is fixedly arranged on the left part of the upper end face of the two groups of second fixing plates (20), the two groups of second sliding bars (23) are symmetrically and fixedly arranged between the baffle D (22) and the baffle C (21), the second lead screw (24) is rotatably arranged between the baffle D (22) and the baffle C (21), the first speed reducing motor (25) is fixedly arranged on the right end face of the baffle C (21), the second lead screw (24) is fixedly connected with the second sliding bars (24) and the second sliding bars (24) in a threaded mode, first linkage block (27) fixed mounting is equipped with spout and spacing groove under second slider (26) on second fixed plate (20) to mutually perpendicular and intercommunication between spout and the spacing groove, two sets of fixed axles (29) all run through and fixed mounting on linking arm (28), linking arm (28) upper portion is equipped with first U type groove, fixed axle (29) on upper portion pass first linkage block (27) and rotate with first linkage block (27) to be connected, first linkage block (27) are in first U type inslot portion, two sets of fixed axles (29) all can with spout and spacing groove sliding connection, adjusting part installs the lower part at linking arm (28).
3. The bridge cavity crack detector as claimed in claim 2, characterized in that the adjusting assembly comprises a connecting shaft (30), a second connecting block (31), a fixed box (32), a T-shaped shaft (33), a rotating plate (34) and a second speed reducing motor (35), wherein the lower end of the connecting arm (28) is provided with a second U-shaped groove, the connecting shaft (30) penetrates through and is fixedly arranged on the second connecting block (31), the connecting shaft (30) is rotatably arranged in the second U-shaped groove, the fixed box (32) is fixedly arranged on the right end face of the second connecting block (31), the T-shaped shaft (33) is fixedly arranged on the upper end face of the rotating plate (34), the rotating plate (34) is fixedly arranged on the left part of the upper end faces of the two groups of first fixed plates (4), the upper end of the T-shaped shaft (33) is rotatably arranged inside the fixed box (32), the first speed reducing motor (25) is fixedly arranged inside the fixed box (32), the output end of the second speed reducing motor (35) is fixedly connected with the upper end of the T-shaped shaft (33), the third speed reducing motor (36) is fixedly arranged on the upper end face of the connecting arm (28) and is fixedly connected with the front end of the third speed reducing motor (36).
4. A bridge cavity crack detector as claimed in claim 2, characterized in that the steering assembly comprises a support shaft (37), a first bevel gear (38), a motor (39) and a second bevel gear (40), the support shaft (37) is rotatably mounted on the frame (1), the support plate (19) is fixedly mounted at the upper end of the support shaft (37), the first bevel gear (38) is fixedly mounted on the support shaft (37), the motor (39) is fixedly mounted on the frame (1), the second bevel gear (40) is fixedly connected with the output end of the motor (39), and the second bevel gear (40) is intermeshed with the connecting arm (28).
5. A bridge cavity crack detector as claimed in claim 3, further comprising a cover (41), the cover (41) being fixedly secured to the upper end of the fixed box (32).
6. A bridge cavity crack detector as claimed in claim 1, characterized in that the two sets of synchronizing wheels D (14) are fixedly connected to each other by means of a set of wheel axles, and the two sets of synchronizing wheels E (15) are fixedly connected to each other by means of a set of wheel axles.
7. A bridge cavity crack detector as claimed in claim 4, characterized in that the connection between the support shaft (37) and the support plate (19) is provided with reinforcing ribs.
CN202210220819.3A 2022-03-08 2022-03-08 Bridge cavity crack detector Active CN114577166B (en)

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CN109275671A (en) * 2018-11-08 2019-01-29 河南工业大学 It is a kind of for making the 3D printer of dietary fiber thin pancake
CN111765542A (en) * 2020-07-20 2020-10-13 武义仙合电子有限公司 Device capable of disassembling and assembling air conditioner external unit bracket
CN112431440A (en) * 2020-11-11 2021-03-02 秦修云 Civil engineering construction support
CN215142282U (en) * 2021-06-12 2021-12-14 济南工程职业技术学院 Conveying device with classification function for logistics sorting machine
CN215346424U (en) * 2021-08-09 2021-12-31 山东恒基农牧机械有限公司 Livestock-raising is with throwing material device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015140825A (en) * 2014-01-27 2015-08-03 日本精工株式会社 Direct acting actuator
CN108037304A (en) * 2017-12-30 2018-05-15 天津博硕东创科技发展有限公司 The sample adding device and its loading methods of Full-automatic chemiluminescence analyzer
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CN215346424U (en) * 2021-08-09 2021-12-31 山东恒基农牧机械有限公司 Livestock-raising is with throwing material device

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Denomination of invention: A bridge cavity crack detection instrument

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