Fatigue crack detection equipment for concrete pavement

Abstract

The utility model relates to the technical field of polypropylene fiber concrete fatigue crack detection, in particular to concrete pavement fatigue crack detection equipment which comprises a four-wheel base, a fixing frame is fixedly connected to the upper surface of the four-wheel base, and the left side face and the right side face of the inner wall of the fixing frame are rotationally connected with the left side face and the right side face of a lifting frame a respectively. A second distance adjusting assembly is arranged in the lifting frame a, a hand wheel b is rotated to drive a worm b and a worm wheel b to rotate, the worm wheel b rotates to drive the lifting frame b to conduct angle adjustment, the lifting frame b and the ground are kept horizontal according to a gradienter, a servo motor b drives a gear b and a gear a to rotate, and the gear a rotates to drive a camera to conduct angle adjustment. An electric cylinder drives a mounting plate and a camera to move downwards to be attached to the pavement crack, and the problem that an existing device needs to be operated inconveniently due to the fact that a worker needs to hold a camera on one side and hold a display screen on the other side is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to polypropylene fiber concrete fatigue crack detection technical field, concretely relates to a kind of concrete pavement fatigue crack detection equipment. BACKGROUND

[0002] Concrete fiber is also called polypropylene fiber. Concrete fiber is a kind of high-performance fiber specially used for concrete / mortar, which can effectively control the micro-cracks caused by plastic shrinkage, dry shrinkage, temperature change and other factors of concrete / mortar, prevent and inhibit the formation and development of concrete primary cracks, greatly improve the crack resistance and impermeability, anti-erosion performance of concrete / mortar, increase the toughness of concrete, and thus improve the service life of concrete.

[0003] In the prior art, polypropylene fiber concrete fatigue crack detection is usually detected by crack width measuring instrument. The device is widely used for crack width measurement of bridge, tunnel, wall, concrete pavement and metal surface.

[0004] When using crack width measuring instrument, it needs to be placed on the crack, adjust the position of the measuring instrument to make it parallel to the crack, make it completely fit the crack, slightly rotate the camera to make the crack image perpendicular to the scale, and read the crack width value according to the scale length occupied by the crack image, but it needs the staff to hold the camera with one hand and the display screen with the other hand, which is inconvenient to operate. UTILITY MODEL CONTENT

[0005] To solve the problems raised in the above background art, the utility model provides a kind of concrete pavement fatigue crack detection equipment.

[0006] In order to achieve the above object, the utility model provides following technical scheme: a concrete pavement fatigue crack detection equipment, the upper surface of four -wheel base is fixedly connected with the fixed frame, the left and right sides of fixed frame inner wall are respectively connected with the left and right sides of lifting frame a rotation, the inside of lifting frame a is provided with second distance adjusting component, the front of lifting frame a is connected with the connecting frame of sliding, the left and right sides of connecting frame inner wall are respectively connected with the left and right sides of lifting frame b rotation, the inside of lifting frame b is provided with first distance adjusting component, the right side of connecting frame is installed power box b, the inside of power box b is provided with third angle adjusting component, the right side of fixed frame is installed crack width gauge body, the right side of fixed frame is installed power box a, the inside of power box a is provided with first angle adjusting component, the left and right sides of lifting frame b are respectively connected with the left and right sides of mounting block sliding, the front of mounting block is installed electric jar, the telescopic end of electric jar is fixedly connected with the front of mounting plate, the bearing of the front of mounting plate is installed camera, the outer surface of camera is provided with second angle adjusting component, the right side of four -wheel base is installed level.

[0007] Preferably, the first angle adjusting component comprises a worm a rotatably connected with the lower surface of the inner wall of the power box a, the outer surface of the worm a is engaged with the outer surface of a worm wheel a, the left side of the worm wheel a is fixedly connected with the right side of the lifting frame a through a bearing and a rotating shaft installed on the left side of the inner wall of the power box a, and the top end of the worm a is fixedly connected with the lower surface of a hand wheel a through the upper surface of the inner wall of the power box a.

[0008] Preferably, the second angle adjusting component comprises a gear a installed on the outer surface of the camera, the outer surface of the gear a is engaged with the outer surface of a gear b, the front of the gear b is fixedly connected with the output shaft of a servo motor b, and the servo motor b is installed on the front of the mounting plate.

[0009] Preferably, the third angle adjusting component comprises a worm b rotatably connected with the lower surface of the inner wall of the power box b, the outer surface of the worm b is engaged with the outer surface of a worm wheel b, the left side of the worm wheel b is fixedly connected with the right side of the lifting frame b through a bearing and a rotating shaft installed on the left side of the inner wall of the power box b, and the top end of the worm b is fixedly connected with the lower surface of a hand wheel b through the upper surface of the inner wall of the power box b.

[0010] Preferably, the first distance adjusting component comprises a servo motor c installed on the lower surface of the inner wall of the lifting frame a, the output shaft of the servo motor c is fixedly connected with the bottom end of a screw b, the top end of the screw b is rotatably connected with the upper surface of the inner wall of the lifting frame a, the outer surface of the screw b is threadedly connected with a threaded sleeve b, and the front of the threaded sleeve b is fixedly connected with the connecting frame.

[0011] Preferably, the second distance adjusting assembly comprises a servo motor a mounted on the upper surface of the inner wall of the lifting frame b, the output shaft of the servo motor a is fixedly connected with the top end of a screw rod a, the bottom end of the screw rod a is rotatably connected with the lower surface of the inner wall of the lifting frame b, and the bottom end of the screw rod a is rotatably connected with the lower surface of the inner wall of the lifting frame b through the screw hole formed in the upper surface of the mounting block.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The utility model discloses, through rotating hand wheel b drive worm wheel b and worm wheel b rotation, worm wheel b rotation drives lifting frame b to carry out angle adjustment, according to level meter makes lifting frame b with ground keep level, servo motor b drives gear wheel b and gear wheel a rotation, gear wheel a rotation drives camera to carry out angle adjustment, so that crack image and scale are perpendicular, and the electric cylinder drives the mounting plate and the camera to move downward and are pasted with the road surface crack, solve the problem that the existing device needs staff to hold the camera one side, and the other side holds the display screen inconveniently.

[0014] The utility model discloses, through servo motor c drive screw rod b rotation, screw rod b rotation drives connecting frame to move along lifting frame a, servo motor a drive screw rod a rotation, screw rod a rotation drives mounting block, mounting plate and camera to move along lifting frame b, and the width of crack is detected to the length of crack. ACCURACY OF DRAWINGS

[0015] The accompanying drawings are included to provide a further understanding of the present application and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and are used to explain the present application, and do not constitute a limitation on the present application. In the drawings:

[0016] Fig. 1 It is the structural schematic diagram of the utility model;

[0017] Fig. 2 It is the three-dimensional structural schematic diagram of mounting plate in the utility model;

[0018] Fig. 3 It is the enlarged structural schematic diagram of A in the utility model;

[0019] In the drawing: 1, four-wheel base;2, fixed frame;3, lifting frame a;4, connecting frame;5, power box a;

[0020] First angle adjusting assembly: 61, hand wheel a;62, worm a;63, worm wheel a;

[0021] 7, crack width detector body;8, lifting frame b;

[0022] First distance adjusting assembly: 91, servo motor a;92, screw rod a;93, mounting block;

[0023] 10, electric cylinder; 11, mounting plate; 12, camera;

[0024] Second angle adjusting assembly: 131, gear a; 132, gear b; 133, servo motor b; 14, power box b;

[0025] Third angle adjusting assembly: 151, hand wheel b; 152, worm b; 153, worm gear b;

[0026] Second distance adjusting assembly: 161, servo motor c; 162, screw b; 163, threaded sleeve b; 17, level. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] EMBODIMENT

[0029] Please refer to Figs. 1-3 The utility model provides following technical scheme: a kind of concrete pavement fatigue crack detection equipment, the upper surface of four-wheel base 1 is fixedly connected with fixed frame 2, the left and right sides of the inner wall of fixed frame 2 are respectively connected with the left and right sides of lifting frame a 3 rotationally, the inside of lifting frame a 3 is provided with second distance adjusting assembly, the front of lifting frame a 3 is slidably connected with connecting frame 4, the left and right sides of the inner wall of connecting frame 4 are respectively connected with the left and right sides of lifting frame b 8 rotationally, the inside of lifting frame b 8 is provided with first distance adjusting assembly, the right side of connecting frame 4 is installed with power box b 14, the inside of power box b 14 is provided with third angle adjusting assembly, the right side of fixed frame 2 is installed with crack width measuring instrument body 7, the right side of fixed frame 2 is installed with power box a 5, the inside of power box a 5 is provided with first angle adjusting assembly, the left and right sides of lifting frame b 8 are respectively slidably connected with the left and right sides of mounting block 93, the front of mounting block 93 is installed with electric cylinder 10, the telescopic end of electric cylinder 10 is fixedly connected with the front of mounting plate 11, the bearing inside the front of mounting plate 11 is installed with camera 12, the outer surface of camera 12 is provided with second angle adjusting assembly, the right side of four-wheel base 1 is installed with level 17.

[0030] Specifically, by setting the first angle adjusting assembly comprises the worm a62 which is rotatably connected with the lower surface of the inner wall of the power box a5, the outer surface of the worm a62 is engaged with the outer surface of the worm wheel a63, the left side of the worm wheel a63 is fixedly connected with the right side of the lifting frame a3 through the bearing and the rotating shaft which are installed on the left side of the inner wall of the power box a5, the top end of the worm a62 penetrates through the upper surface of the inner wall of the power box a5 and is fixedly connected with the lower surface of the hand wheel a61;

[0031] Rotating the hand wheel a61 drives the worm a62 and the worm wheel a63 to rotate, and the rotation of the worm wheel a63 drives the lifting frame a3 to rotate downward and keep parallel with the four-wheel base 1.

[0032] Specifically, by setting the second angle adjusting assembly comprises the gear a131 which is installed on the outer surface of the camera 12, the outer surface of the gear a131 is engaged with the outer surface of the gear b132, the front surface of the gear b132 is fixedly connected with the output shaft of the servo motor b133, and the servo motor b133 is installed on the front surface of the mounting plate 11;

[0033] The servo motor b133 drives the gear b132 and the gear a131 to rotate, and the rotation of the gear a131 drives the camera 12 to adjust the angle, so as to make the crack image perpendicular to the scale.

[0034] Specifically, by setting the third angle adjusting assembly comprises the worm b152 which is rotatably connected with the lower surface of the inner wall of the power box b14, the outer surface of the worm b152 is engaged with the outer surface of the worm wheel b153, the left side of the worm wheel b153 is fixedly connected with the right side of the lifting frame b8 through the bearing and the rotating shaft which are installed on the left side of the inner wall of the power box b14, and the top end of the worm b152 penetrates through the upper surface of the inner wall of the power box b14 and is fixedly connected with the lower surface of the hand wheel b151;

[0035] Rotating the hand wheel b151 drives the worm b152 and the worm wheel b153 to rotate, and the rotation of the worm wheel b153 drives the lifting frame b8 to adjust the angle, so as to make the lifting frame b8 keep horizontal with the ground according to the level 17;

[0036] The electric cylinder 10 drives the mounting plate 11 and the camera 12 to move downward and adhere to the road crack.

[0037] Specifically, by setting the first distance adjusting assembly comprises the servo motor c161 which is installed on the lower surface of the inner wall of the lifting frame a3, the output shaft of the servo motor c161 is fixedly connected with the bottom end of the screw rod b162, the top end of the screw rod b162 is rotatably connected with the upper surface of the inner wall of the lifting frame a3, the outer surface of the screw rod b162 is threadedly connected with the threaded sleeve b163, and the front surface of the threaded sleeve b163 is fixedly connected with the connecting frame 4;

[0038] The servo motor c161 drives the screw rod b162 to rotate, the screw rod b162 drives the connecting frame 4 to move along the lifting frame a3, and then the length of the crack is extended to detect the width of the crack.

[0039] Specifically, the second distance adjusting assembly comprises a servo motor a91 mounted on the upper surface of the inner wall of the lifting frame b8, the output shaft of the servo motor a91 is fixedly connected with the top end of a screw rod a92, the bottom end of the screw rod a92 is rotatably connected with the lower surface of the inner wall of the lifting frame b8, and the bottom end of the screw rod a92 is rotatably connected with the lower surface of the inner wall of the lifting frame b8 through a threaded hole formed in the upper surface of a mounting block 93.

[0040] The servo motor a91 drives the screw rod a92 to rotate, the screw rod a92 drives the mounting block 93, the mounting plate 11 and the camera 12 to move along the lifting frame b8, and the length of the crack is extended to detect the width of the crack.

[0041] The working principle and use process of the utility model are as follows:

[0042] In use, the utility model has the advantages that:

[0043] The hand wheel a61 drives the worm a62 and the worm wheel a63 to rotate, the worm wheel a63 drives the lifting frame a3 to rotate downward and keep parallel with the four-wheel base 1, the hand wheel b151 drives the worm b152 and the worm wheel b153 to rotate, the worm wheel b153 drives the lifting frame b8 to adjust the angle, the lifting frame b8 keeps horizontal with the ground according to the level 17, the servo motor b133 drives the gear b132 and the gear a131 to rotate, the gear a131 drives the camera 12 to adjust the angle, so that the crack image is perpendicular to the scale, the electric cylinder 10 drives the mounting plate 11 and the camera 12 to move downward and adhere to the road crack, the servo motor c161 drives the screw rod b162 to rotate, the screw rod b162 drives the connecting frame 4 to move along the lifting frame a3, the servo motor a91 drives the screw rod a92 to rotate, the screw rod a92 drives the mounting block 93, the mounting plate 11 and the camera 12 to move along the lifting frame b8, and the length of the crack is extended to detect the width of the crack.

[0044] The circuit and electronic components and modules are all prior art, and those skilled in the art can realize them without further description, and the content protected by the utility model does not involve improvement of software and methods.

[0045] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for the skilled in the art, it still can be modified, or for the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.

Claims

1. A concrete pavement fatigue crack detection apparatus comprising a four-wheel base (1), characterized in that: The upper surface of the four-wheel base (1) is fixedly connected with a fixing frame (2), the left and right side surfaces of the inner wall of the fixing frame (2) are rotatably connected with the left and right side surfaces of a lifting frame a (3), the inside of the lifting frame a (3) is provided with a second distance adjusting assembly, the front surface of the lifting frame a (3) is slidably connected with a connecting frame (4), the left and right side surfaces of the inner wall of the connecting frame (4) are rotatably connected with the left and right side surfaces of a lifting frame b (8), the inside of the lifting frame b (8) is provided with a first distance adjusting assembly, the right side surface of the connecting frame (4) is provided with a power box b (14), the inside of the power box b (14) is provided with a third angle adjusting assembly, the right side surface of the fixing frame (2) is provided with a crack width measuring instrument body (7), the right side surface of the fixing frame (2) is provided with a power box a (5), the inside of the power box a (5) is provided with a first angle adjusting assembly, the left and right side surfaces of the lifting frame b (8) are slidably connected with the left and right side surfaces of a mounting block (93), the front surface of the mounting block (93) is provided with an electric cylinder (10), the telescopic end of the electric cylinder (10) is fixedly connected with the front surface of a mounting plate (11), the bearing in the front surface of the mounting plate (11) is provided with a camera (12), the outer surface of the camera (12) is provided with a second angle adjusting assembly, and the right side surface of the four-wheel base (1) is provided with a level (17).

2. The apparatus for detecting fatigue cracks in a concrete pavement according to claim 1, wherein: The first angle adjusting assembly comprises a worm a (62) rotatably connected with the lower surface of the inner wall of the power box a (5), the outer surface of the worm a (62) is meshed with the outer surface of a worm wheel a (63), the left side surface of the worm wheel a (63) is fixedly connected with the right side surface of the lifting frame a (3) through a bearing and a rotating shaft mounted on the left side surface of the inner wall of the power box a (5), and the top end of the worm a (62) penetrates through the upper surface of the inner wall of the power box a (5) and is fixedly connected with the lower surface of a hand wheel a (61).

3. The apparatus for detecting fatigue cracks in a concrete pavement according to claim 1, wherein: The second angle adjusting assembly comprises a gear a (131) mounted on the outer surface of the camera (12), the outer surface of the gear a (131) is meshed with the outer surface of a gear b (132), the front surface of the gear b (132) is fixedly connected with the output shaft of a servo motor b (133), and the servo motor b (133) is mounted on the front surface of the mounting plate (11).

4. The apparatus for detecting fatigue cracks in a concrete pavement according to claim 1, wherein: The third angle adjusting assembly comprises a worm b (152) rotatably connected with the lower surface of the inner wall of the power box b (14), the outer surface of the worm b (152) is meshed with the outer surface of a worm wheel b (153), the left side surface of the worm wheel b (153) is fixedly connected with the right side surface of the lifting frame b (8) through a bearing and a rotating shaft mounted on the left side surface of the inner wall of the power box b (14), and the top end of the worm b (152) penetrates through the upper surface of the inner wall of the power box b (14) and is fixedly connected with the lower surface of a hand wheel b (151).

5. The apparatus for detecting fatigue cracks in concrete pavements of claim 1 wherein: The first distance adjusting assembly comprises a servo motor c (161) mounted on the lower surface of the inner wall of the lifting frame a (3), the output shaft of the servo motor c (161) is fixedly connected with the bottom end of a screw rod b (162), the top end of the screw rod b (162) is rotatably connected with the upper surface of the inner wall of the lifting frame a (3), and the outer surface of the screw rod b (162) is threadedly connected with a threaded sleeve b (163), and the front surface of the threaded sleeve b (163) is fixedly connected with the connecting frame (4).

6. The apparatus for detecting fatigue cracks in concrete pavements of claim 1 wherein: The second distance adjusting assembly comprises a servo motor a (91) mounted on the upper surface of the inner wall of the lifting frame b (8), the output shaft of the servo motor a (91) is fixedly connected with the top end of a screw rod a (92), the bottom end of the screw rod a (92) is rotatably connected with the lower surface of the inner wall of the lifting frame b (8), and the bottom end of the screw rod a (92) is rotatably connected with the lower surface of the inner wall of the lifting frame b (8) through a threaded hole formed in the upper surface of a mounting block (93).

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