A rock fragmentation size scanning station

Abstract

The application relates to the technical field of soil blasting, and discloses a broken stone granularity scanning station which comprises a frame body and a vehicle body, a moving mechanism is arranged on the frame body, a rotating mechanism is arranged at the bottom of the moving mechanism, a three-dimensional laser scanner is connected to the bottom of the rotating mechanism, the moving mechanism is used for driving the rotating mechanism to move, and the rotating mechanism is used for rotating the three-dimensional laser scanner; a computer is fixedly connected to the side wall of the frame body, the three-dimensional laser scanner is electrically connected with the computer, the three-dimensional laser scanner is driven to move through the moving mechanism, the three-dimensional laser scanner is driven to rotate through the rotating mechanism, the three-dimensional laser scanner has high flexibility, can scan multiple surfaces of broken stones in a short time, the vehicle compartment can be vibrated through a vibrating mechanism, the accumulated broken stones are vibrated, the broken stones in the broken stone pile are shaken out, the scanning is facilitated, more data information of the blasted broken stones is obtained, a three-dimensional model of the broken stones can be quickly generated, and the analysis on the blasting volume is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of soil blasting, in particular to a broken stone block size scanning station. BACKGROUND

[0002] Rock block size control is an important operation in mining and mineral engineering to control and minimize the cost of loading, transportation, crushing, classification and processing. In the prior art, the traditional method is to measure and sieve the size distribution of rock block size by hand. With the continuous development of three-dimensional laser scanning technology, a three-dimensional laser scanner uses grating projection technology to obtain a three-dimensional model of broken stone through multi-angle scanning of the broken stone. The rock block size is analyzed in real time online by a block size online scanning and real-time automatic analysis system of the three-dimensional laser scanner, which can provide an important reference for the design scheme of blasting collapse or rock drilling and tunneling, and is beneficial to control the block size of the generated rock block to save the cost of multiple crushing caused by excessive block size.

[0003] A patent application with publication number CN114818019A discloses a rock block size identification method. The method steps are as follows: S1, establishing a rock block three-dimensional geometric analysis mathematical model composed of point cloud data; S2, extracting the three-dimensional geometric size of the rock block in stages, constructing a three-dimensional image and rock block grading database; S3, outputting a rock block size distribution curve. The invention obtains the point cloud data of the blast pile and the rock block surface by three-dimensional laser scanning, constructs a three-dimensional image and rock block grading database, and completes the identification of the rock block size through data comparison, thereby improving the efficiency and accuracy of rock block size identification. At the same time, the three-dimensional laser scanning device is used to scan the blast pile. The three-dimensional laser scanning device is provided with a horizontal measurement component to ensure that the three-dimensional laser scanning head remains horizontal during scanning, preventing the scanned pictures from being difficult to match due to the influence of the scanning head during the segmented scanning process.

[0004] In the above-mentioned scheme, the identification and detection system based on three-dimensional laser scanning technology is used to analyze the block size of broken stone, which to some extent realizes the acquisition of the block size characteristics of the regional rock block. However, the above-mentioned technical solution still has some deficiencies. The three-dimensional laser scanning head can move horizontally and vertically, but the scanning direction of the three-dimensional laser scanning head is fixed. When scanning the blast pile, the three-dimensional laser scanning head with fixed direction is difficult to scan multiple surfaces of the broken stone, and the broken stone inside the blast pile is difficult to be scanned. After single scanning, the data information of the broken stone of the blast pile obtained is less, and it is difficult to quickly generate more three-dimensional models of the broken stone, which is not conducive to the subsequent analysis of the blasting volume.

[0005] Therefore, the present application provides a broken stone block size scanning station. SUMMARY

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The present invention provides a gravel size scanning station, comprising a frame and a vehicle body, wherein a moving mechanism is provided on the frame, a rotating mechanism is provided at the bottom of the moving mechanism, and a three-dimensional laser scanner is connected to the bottom of the rotating mechanism, the moving mechanism is used to drive the rotating mechanism to move, and the rotating mechanism is used to rotate the three-dimensional laser scanner; the side wall of the frame is fixedly connected to a computer, and the three-dimensional laser scanner is electrically connected to the computer; the vehicle body is composed of a bottom plate and a vehicle compartment, and a plurality of hollow cylinders and movable rods are respectively fixed between the opposite surfaces of the bottom plate and the vehicle compartment, and the movable rod passes through the hollow cylinder and is slidably connected to the hollow cylinder, a spring is fixed to the movable rod and the extrusion cavity of the hollow cylinder, a vibration mechanism is provided on the top surface of the bottom plate, and the vibration mechanism is connected to a dust reduction mechanism, the vibration mechanism is used to vibrate the vehicle compartment, and the dust reduction mechanism is used to reduce dust in the vehicle compartment.

[0008] Preferably, the moving mechanism includes a motor 1 fixedly connected to the side wall of the frame, a groove is provided on the bottom surface of the frame, a slider is slidably connected in the groove, a screw 1 is fixedly connected to the output end of the motor 1, the screw 1 is provided in the groove and is rotatably connected to the inner wall of the groove, the screw 1 passes through the slider and is threadedly connected to the slider, the slider is fixedly connected to a movable block, and the rotating mechanism is provided below the movable block.

[0009] Preferably, the rotating mechanism includes a second motor fixedly connected to the bottom surface of the movable block, the output end of the second motor is fixedly connected to a rotating plate, the bottom surface of the rotating plate is fixedly connected to a slide rail, a support frame, and an electric telescopic rod, the slide rail is slidably connected with a connecting block, the output end of the electric telescopic rod passes through the slide rail and extends into the interior of the slide rail and is fixed to the side surface of the connecting block, the electric telescopic rod is slidably connected to the slide rail, the support frame is rotatably provided with a rotating rod, and the bottom surface of the rotating rod is fixed to the three-dimensional laser scanner, the side wall of the rotating rod is provided with a connecting rod, one end of the connecting rod is rotatably provided with the side wall of the rotating rod, and the other end of the connecting rod is rotatably provided with the side wall of the connecting block.

[0010] Preferably, the vibration mechanism includes a motor three fixedly connected to the top surface of the base plate, the output end of the motor three is fixedly connected to the drive shaft, and the side wall of the drive shaft is fixedly connected to a rotating block, and the rotating block is eccentrically arranged with the drive shaft.

[0011] Preferably, the dust reduction mechanism includes an active bevel gear fixedly connected to the driving shaft, the active bevel gear is meshedly connected to the driven bevel gear, the top surface of the bottom plate is rotatably connected to the driven shaft, the driven bevel gear passes through the driven shaft and is fixed to the driven shaft, the top of the driven shaft is fixedly connected to a second screw, and the second screw is threadedly connected to a lifting block, the second screw is a reciprocating screw, one side of the lifting block is fixedly connected to a support rod, and a limiting assembly is provided on the other side of the lifting block, the top of the support rod is fixedly connected to a push plate, the side wall of the vehicle compartment is fixedly connected to a fixed plate and a water tank, and the fixed An airbag is fixedly connected to the bottom surface of the plate, and the airbag is arranged above the push plate. A connecting pipe is fixedly connected between the airbag and the water tank. The connecting pipe mouth is located in the water tank at a position higher than the liquid level of the water in the water tank. A water supply pipe is fixedly connected to the side wall of the water tank. A mounting pipe is fixedly connected to the inner wall of the compartment, and a plurality of fixed pipes are arranged between the mounting pipe and the water supply pipe. The fixed pipe passes through the compartment and is fixedly connected to the compartment. One end of the fixed pipe is fixedly connected to the side wall of the mounting pipe, and the other end is fixedly connected to the side wall of the water supply pipe. A plurality of nozzles are fixedly connected to the side wall of the mounting pipe.

[0012] Preferably, the limiting assembly includes a mounting block fixedly connected to the side wall of the lifting block, the side wall of the vehicle compartment is fixedly connected to a limiting rod, and the limiting rod passes through the mounting block and is slidably connected thereto.

[0013] Preferably, two groups of connecting rods are provided, and the two groups of connecting rods are symmetrically distributed about the midline of the cross section of the connecting block.

[0014] Preferably, a plurality of rotating blocks are provided, and the rotating blocks are equidistantly distributed.

[0015] Preferably, four groups of hollow tubes and movable rods are provided, and the four groups of hollow tubes and movable rods are distributed in a rectangular shape.

[0016] Preferably, the side walls and inner walls of the vehicle compartment are fixedly connected with a plurality of pipe clamps, and the water supply pipe and the installation pipe are arranged in the pipe clamps.

[0017] The beneficial effects of the present invention are as follows: the gravel size scanning station described in the present invention loads the blasted gravel into the vehicle compartment, scans the gravel using a three-dimensional laser scanner, uploads the data obtained by the three-dimensional laser scanner to a computer, processes the information by the computer to obtain a mathematical model of the blasted gravel, drives the three-dimensional laser scanner to move by a moving mechanism, and drives the three-dimensional laser scanner to rotate by a rotating mechanism. The three-dimensional laser scanner has high adjustment flexibility and can scan multiple surfaces of the gravel in a short time. The vehicle compartment can be vibrated by a vibration mechanism to vibrate the accumulated gravel and shake out the gravel inside the gravel pile, which is convenient for scanning, and more data information of the blasted gravel is obtained, which is convenient for quickly generating more three-dimensional models of gravel, and is beneficial for subsequent analysis of the blasting volume.

[0018] The gravel size scanning station described in the present invention can reduce the dust of the vibrated gravel in the vehicle compartment through the dust reduction mechanism, which can effectively reduce the impact of dust on the scanning of the three-dimensional scanner, ensure the accuracy of the scanning, and facilitate the acquisition of data information of the exploded gravel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is an overall schematic diagram of an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the rotating mechanism structure in the present invention Figure 1 ;

[0021] Figure 3 It is a schematic structural diagram of the mobile mechanism in the present invention;

[0022] Figure 4 The present invention Figure 3 Enlarged view of point B in the middle;

[0023] Figure 5 This is a schematic diagram of the rotating mechanism structure in the present invention Figure 2 ;

[0024] Figure 6 The present invention Figure 1 Enlarged view of point A in the middle;

[0025] Figure 7 It is a structural schematic diagram of the vehicle body of the present invention;

[0026] Figure 8 It is a partial cross-sectional view of the installation pipe of the present invention.

[0027] Description of reference numerals:

[0028] 1. Frame; 2. Moving mechanism; 21. Motor 1; 22. Groove; 23. Slider; 24. Movable block; 25. Lead screw 1; 3. Rotating mechanism; 31. Motor 2; 32. Rotating plate; 33. Slide rail; 34. Electric telescopic rod; 35. Connecting block; 36. Support frame; 37. Rotating rod; 38. Connecting rod; 4. 3D laser scanner; 5. Car body; 51. Bottom plate; 52. Hollow cylinder; 53. Movable rod; 54. Carriage compartment; 6. Computer; 7. Vibrator Structure; 71. Motor three; 72. Drive shaft; 73. Rotating block; 8. Dust suppression mechanism; 81. Active bevel gear; 82. Driven bevel gear; 83. Driven shaft; 84. Screw two; 85. Lifting block; 86. Support rod; 87. Push plate; 88. Airbag; 89. Water tank; 810. Fixed plate; 811. Water supply pipe; 812. Connecting pipe; 813. Mounting pipe; 814. Nozzle; 815. Fixed pipe; 9. Limit assembly; 91. Mounting block; 92. Limit rod. DETAILED DESCRIPTION

[0029] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed solely to enable those skilled in the art to better understand and implement the subject matter described herein, and that the functions and arrangements of the elements discussed may be varied without departing from the scope of this specification. Various examples may omit, substitute, or add various processes or components as needed. In addition, features described with respect to some examples may also be combined in other examples.

[0030] like Figures 1 to 8 As shown, a gravel fragmentation scanning station according to an embodiment of the present invention is provided. Figure 1 、 Figure 3 , including a frame 1 and a vehicle body 5, a moving mechanism 2 is provided on the frame 1, a rotating mechanism 3 is provided at the bottom of the moving mechanism 2, and a three-dimensional laser scanner 4 is connected to the bottom of the rotating mechanism 3, the moving mechanism 2 is used to drive the rotating mechanism 3 to move, the moving mechanism 2 includes a motor 1 21 fixed to the side wall of the frame 1, a groove 22 is provided on the bottom surface of the frame 1, a slider 23 is slidably connected in the groove 22, a screw 1 25 is fixed to the output end of the motor 1 21, the screw 1 25 is provided in the groove 22 and the screw 1 25 is rotatably connected to the inner wall of the groove 22, Lead screw 1 25 passes through slider 23 and is threadedly connected to slider 23. Slider 23 is fixedly connected to movable block 24. Rotating mechanism 3 is arranged below movable block 24. Computer 6 is fixedly connected to the side wall of frame 1. 3D laser scanner 4 is electrically connected to computer 6. Drive motor 1 21 drives lead screw 1 25 to rotate, thereby moving slider 23 within groove 22, thereby driving rotating mechanism 3 and 3D laser scanner 4 below to move. The movement of 3D laser scanner 4 can scan gravel at different positions in vehicle compartment 54, thereby expanding the scanning range.

[0031] Please refer to Figure 2 、 Figure 4 、 Figure 5The rotating mechanism 3 includes a motor 2 31 fixed to the bottom surface of the movable block 24, the output end of the motor 2 31 is fixedly connected to a rotating plate 32, the bottom surface of the rotating plate 32 is fixedly connected to a slide rail 33, a support frame 36, and an electric telescopic rod 34, the slide rail 33 is slidably connected with a connecting block 35, the output end of the electric telescopic rod 34 passes through the slide rail 33 and extends into the interior of the slide rail 33 and is fixedly connected to the side of the connecting block 35, the electric telescopic rod 34 is slidably connected to the slide rail 33, the support frame 36 is rotatably provided with a rotating rod 37, and the bottom surface of the rotating rod 37 is fixedly connected to the three-dimensional laser scanner 4, the side wall of the rotating rod 37 is provided with a connecting rod 38, one end of the connecting rod 38 is rotatably provided with the side wall of the rotating rod 37, and the other end of the connecting rod 38 is connected to the connecting rod The side wall of the connecting block 35 is rotatable, and two groups of connecting rods 38 are provided, and the two groups of connecting rods 38 are symmetrically distributed about the midline of the cross section of the connecting block 35. When the rotation angle of the rotating plate 32 is adjusted, it will not rotate in the same direction all the time, but will rotate in the opposite direction after rotating 180 degrees. The rotating mechanism 3 is used to rotate the three-dimensional laser scanner 4, drive the electric telescopic rod 34, drive the connecting block 35 to move in the slide rail 33, thereby driving the connecting rod 38 to move. The movement of the connecting rod 38 can rotate the rotating rod 37, and then adjust the angle of the three-dimensional laser scanner 4, so as to facilitate scanning of multiple surfaces of the crushed stone, facilitate obtaining more comprehensive data information of the blasted stone, and facilitate the generation of a three-dimensional model of the crushed stone;

[0032] Please refer to Figure 1 、 Figure 6 、 Figure 7 The vehicle body 5 is composed of a bottom plate 51 and a vehicle compartment 54. A plurality of hollow cylinders 52 and movable rods 53 are fixedly connected between the opposite surfaces of the bottom plate 51 and the vehicle compartment 54, and the movable rods 53 pass through the hollow cylinder 52 and are slidably connected to the hollow cylinder 52. A spring is fixedly connected to the extrusion cavity of the movable rod 53 and the hollow cylinder 52. There are four groups of hollow cylinders 52 and movable rods 53, and the four groups of hollow cylinders 52 and movable rods 53 are rectangularly distributed. The hollow cylinders 52 and movable rods 53 are evenly distributed and reasonably arranged. A vibration mechanism 7 is provided on the top surface of the bottom plate 51. The vibration mechanism 7 includes a third motor 71 fixedly connected to the top surface of the base plate 51. The output end of the third motor 71 is fixedly connected to a drive shaft 72, and a rotating block 73 is fixedly connected to the side wall of the drive shaft 72. The rotating block 73 is eccentrically arranged with respect to the drive shaft 72. There are a plurality of rotating blocks 73, and the rotating blocks 73 are equidistantly distributed. The drive shaft 72 rotates under the drive of the third motor 71, causing the rotating blocks 73 to rotate. Since the rotating blocks 73 are eccentrically arranged with respect to the drive shaft 72, the rotation of the rotating blocks 73 can collide with the top compartment 54, thereby causing the compartment 54 to vibrate.

[0033] Please refer to Figure 1 、 Figure 6 、 Figure 7 、 Figure 8The vibration mechanism 7 is connected to the dust reduction mechanism 8. The vibration mechanism 7 is used to vibrate the vehicle compartment 54. The dust reduction mechanism 8 is used to reduce dust in the vehicle compartment 54. The dust reduction mechanism 8 includes an active bevel gear 81 fixed to the drive shaft 72. The active bevel gear 81 is meshed with a driven bevel gear 82. The top surface of the bottom plate 51 is rotatably connected to a driven shaft 83. The driven bevel gear 82 passes through the driven shaft 83 and is fixed to the driven shaft 83. The top of the driven shaft 83 is fixed with a screw 2 84, and the screw 2 84 is threadedly connected to a lifting block 85. The screw 2 84 is a reciprocating screw. A support rod 86 is fixed to one side of the lifting block 85. The lifting block The other side of 85 is provided with a limit assembly 9, the top of the support rod 86 is fixedly connected with a push plate 87, the side wall of the compartment 54 is fixedly connected with a fixed plate 810 and a water tank 89, the bottom surface of the fixed plate 810 is fixedly connected with an air bag 88, the air bag 88 is arranged above the push plate 87, and a connecting pipe 812 is fixedly connected between the air bag 88 and the water tank 89. The position of the connecting pipe 812 pipe mouth in the water tank 89 is higher than the liquid level of the water in the water tank 89, and the connecting pipe 812 is a hose. The side wall of the water tank 89 is fixedly connected with a water supply pipe 811, and the inner wall of the compartment 54 is fixedly connected with a mounting pipe 813, and the mounting pipe 813 is connected to the water supply pipe 81 1 is provided with a plurality of fixed pipes 815, the fixed pipes 815 pass through the compartment 54 and are fixedly connected to the compartment 54, one end of the fixed pipe 815 is fixedly connected to the side wall of the mounting pipe 813, and the other end is fixedly connected to the side wall of the water supply pipe 811, the side wall of the mounting pipe 813 is fixedly connected with a plurality of nozzles 814, the nozzles 814 are arranged obliquely, the side wall and the inner wall of the compartment 54 are fixedly connected with a plurality of pipe clamps, the water supply pipe 811 and the mounting pipe 813 are arranged in the pipe clamps, the driving shaft 72 rotates to drive the active bevel gear 81 and the driven bevel gear 82 to rotate, thereby enabling the driven shaft 83 and the screw 2 84 to rotate, due to the screw Lever 2 84 is a reciprocating screw, so the lifting block 85 on screw 2 84 can be lifted and lowered reciprocally, that is, the push plate 87 can squeeze the airbag 88 reciprocally, and the gas in the airbag 88 is squeezed into the water tank 89. The water in the water tank 89 will flow to the water supply pipe 811 and the installation pipe 813 under the action of air pressure, and finally be sprayed out from the nozzle 814. After the airbag 88 is squeezed, it will generate a rebound recovery force to restore its original shape. When the push plate 87 is lifted and lowered reciprocally, the airbag 88 is repeatedly squeezed and rebounded, thereby ensuring water spraying. The water is sprayed into the car compartment 54, which can play a role in reducing dust inside the car compartment 54.

[0034] Please refer to Figure 1 、 Figure 7 The limiting assembly 9 includes a mounting block 91 fixed to the side wall of the lifting block 85, a limiting rod 92 fixed to the side wall of the compartment 54, and the limiting rod 92 passes through the mounting block 91 and is slidably connected thereto, and a mounting seat is fixed to the side wall of the compartment 54. The limiting rod 92 is arranged between the mounting seats, and the movement of the lifting block 85 can be limited and guided by the limiting rod 92 and the mounting block 91.

[0035] How it works

[0036] When the position of the three-dimensional laser scanner 4 needs to be adjusted:

[0037] The driving motor one 21 drives the lead screw one 25 to rotate, thereby moving the sliding block 23 in the groove 22, and further driving the rotating mechanism 3 below and the three-dimensional laser scanner 4 to move;

[0038] When the angle of the three-dimensional laser scanner 4 needs to be adjusted:

[0039] The driving electric telescopic rod 34 drives the connecting block 35 to move in the sliding rail 33, thereby driving the connecting rod 38 to move, and the connecting rod 38 moves to enable the rotating rod 37 to rotate, thereby adjusting the angle of the three-dimensional laser scanner 4, and the driving motor two 31 can drive the rotating plate 32 and the three-dimensional laser scanner 4 below to rotate, when the rotating angle of the rotating plate 32 is adjusted, it will not rotate in the same direction all the time, but will rotate in the opposite direction after rotating 180 degrees, which is convenient for scanning multiple surfaces of the broken stone and obtaining more comprehensive data information of the broken stone, and is beneficial to generating a three-dimensional model of the broken stone;

[0040] When the car bin 54 needs to be vibrated to enable the broken stone at the bottom to be scanned:

[0041] The driving motor three 71 drives the driving shaft 72 to rotate, and the driving shaft 72 drives the rotating block 73 to rotate, and the rotating block 73 is eccentrically arranged with the driving shaft 72, so that the rotating block 73 rotates to collide with the car bin 54 at the top, thereby vibrating the car bin 54;

[0042] The driving shaft 72 rotates to drive the driving bevel gear 81 and the driven bevel gear 82 to rotate, thereby enabling the driven shaft 83 and the lead screw two 84 to rotate, and since the lead screw two 84 is a reciprocating lead screw, the lifting block 85 on the lead screw two 84 can reciprocatingly lift, that is, the push plate 87 can reciprocatingly press the air bag 88, and the gas in the air bag 88 is pressed into the water tank 89, and the water in the water tank 89 flows into the water delivery pipe 811 and the installation pipe 813 under the action of the gas pressure, and is finally sprayed out of the spray head 814, and after the air bag 88 is pressed, it will have a rebound restoring force to restore its original shape, and when the push plate 87 reciprocatingly lifts, the air bag 88 is repeatedly pressed and rebounds, thereby ensuring water spraying, and the water sprayed into the car bin 54 can reduce dust inside the car bin 54, effectively reducing the influence of dust on the three-dimensional scanner during scanning, ensuring the accuracy during scanning, and being beneficial to obtaining data information of the broken stone.

[0043] The above describes an embodiment of this specific implementation method, but this embodiment is not limited to the above specific implementation method. The above specific implementation method is merely illustrative and not restrictive. Ordinary technicians in this field can also make many forms based on the inspiration of this embodiment, all of which are protected by this embodiment.

Claims

1. A gravel particle size scanning station, characterized by: The vehicle comprises a frame (1) and a vehicle body (5), wherein a moving mechanism (2) is provided on the frame (1), a rotating mechanism (3) is provided at the bottom of the moving mechanism (2), and a three-dimensional laser scanner (4) is connected to the bottom of the rotating mechanism (3), the moving mechanism (2) is used to drive the rotating mechanism (3) to move, and the rotating mechanism (3) is used to rotate the three-dimensional laser scanner (4); A computer (6) is fixedly connected to the side wall of the frame (1), and the three-dimensional laser scanner (4) is electrically connected to the computer (6); The vehicle body (5) is composed of a bottom plate (51) and a vehicle compartment (54). A plurality of hollow cylinders (52) and movable rods (53) are fixedly connected between the opposite surfaces of the bottom plate (51) and the vehicle compartment (54). The movable rods (53) penetrate the hollow cylinders (52) and are slidably connected to the hollow cylinders (52). A spring is fixedly connected to the extrusion cavity of the movable rods (53) and the hollow cylinders (52). A vibration mechanism (7) is provided on the top surface of the bottom plate (51), and the vibration mechanism (7) is connected to a dust reduction mechanism (8). The vibration mechanism (7) is used to vibrate the vehicle compartment (54), and the dust reduction mechanism (8) is used to reduce dust in the vehicle compartment (54). The vibration mechanism (7) includes a third motor (71) fixedly connected to the top surface of the bottom plate (51), the output end of the third motor (71) is fixedly connected to a drive shaft (72), and a rotating block (73) is fixedly connected to the side wall of the drive shaft (72), and the rotating block (73) is eccentrically arranged with respect to the drive shaft (72); The dust suppression mechanism (8) includes an active bevel gear (81) fixed to the drive shaft (72), the active bevel gear (81) is meshedly connected to the driven bevel gear (82), the top surface of the bottom plate (51) is rotatably connected to the driven shaft (83), the driven bevel gear (82) passes through the driven shaft (83) and is fixed to the driven shaft (83), the top end of the driven shaft (83) is fixed to a second lead screw (84), and a lifting block (85) is threadedly connected to the second lead screw (84), the second lead screw (84) is a reciprocating lead screw, one side of the lifting block (85) is fixed to a support rod (86), the other side of the lifting block (85) is provided with a limiting assembly (9), the top end of the support rod (86) is fixed to a push plate (87), the side wall of the vehicle compartment (54) is fixed to a fixed plate (810) and a water tank (89), and the bottom surface of the fixed plate (810) is fixed to an air bag ( 88), the air bag (88) is arranged above the push plate (87), and a connecting pipe (812) is fixedly connected between the air bag (88) and the water tank (89), and the position of the connecting pipe (812) pipe mouth located in the water tank (89) is higher than the liquid level of the water in the water tank (89), and the side wall of the water tank (89) is fixedly connected with a water supply pipe (811), and the inner wall of the vehicle compartment (54) is fixedly connected with a mounting pipe (813), and a plurality of fixed pipes (815) are arranged between the mounting pipe (813) and the water supply pipe (811), and the fixed pipe (815) passes through the vehicle compartment (54) and is fixedly connected to the vehicle compartment (54), one end of the fixed pipe (815) is fixedly connected to the side wall of the mounting pipe (813), and the other end is fixedly connected to the side wall of the water supply pipe (811), and the side wall of the mounting pipe (813) is fixedly connected with a plurality of nozzles (814).

2. The gravel size scanning station according to claim 1, characterized in that: The moving mechanism (2) includes a motor 1 (21) fixedly connected to the side wall of the frame (1), a groove (22) is provided on the bottom surface of the frame (1), a slider (23) is slidably connected in the groove (22), a lead screw 1 (25) is fixedly connected to the output end of the motor 1 (21), the lead screw 1 (25) is arranged in the groove (22) and the lead screw 1 (25) is rotatably connected to the inner wall of the groove (22), the lead screw 1 (25) passes through the slider (23) and is threadedly connected to the slider (23), the slider (23) is fixedly connected to a movable block (24), and the rotating mechanism (3) is arranged below the movable block (24).

3. The gravel size scanning station according to claim 2, characterized in that: The rotating mechanism (3) includes a second motor (31) fixed to the bottom surface of the movable block (24), the output end of the second motor (31) is fixed to a rotating plate (32), the bottom surface of the rotating plate (32) is fixed to a slide rail (33), a support frame (36), and an electric telescopic rod (34), the slide rail (33) is slidably connected to a connecting block (35), the output end of the electric telescopic rod (34) passes through the slide rail (33) and extends into the inside of the slide rail (33) and is fixed to the side of the connecting block (35), the electric telescopic rod (34) is slidably connected to the slide rail (33), the support frame (36) is rotatably provided with a rotating rod (37), and the bottom surface of the rotating rod (37) is fixed to the three-dimensional laser scanner (4), the side wall of the rotating rod (37) is provided with a connecting rod (38), one end of the connecting rod (38) is rotatably provided with the side wall of the rotating rod (37), and the other end of the connecting rod (38) is rotatably provided with the side wall of the connecting block (35).

4. The gravel size scanning station according to claim 1, characterized in that: The limiting assembly (9) includes a mounting block (91) fixedly connected to the side wall of the lifting block (85), a limiting rod (92) fixedly connected to the side wall of the vehicle compartment (54), and the limiting rod (92) passes through the mounting block (91) and is slidably connected thereto.

5. The gravel size scanning station according to claim 3, characterized in that: Two groups of connecting rods (38) are provided, and the two groups of connecting rods (38) are symmetrically distributed about the midline of the cross section of the connecting block (35).

6. The gravel size scanning station according to claim 1, characterized in that: A plurality of rotating blocks (73) are provided, and the plurality of rotating blocks (73) are distributed at equal intervals.

7. The gravel size scanning station according to claim 1, characterized in that: Four groups of hollow cylinders (52) and movable rods (53) are provided, and the four groups of hollow cylinders (52) and movable rods (53) are distributed in a rectangular shape.

8. The gravel size scanning station according to claim 1, characterized in that: The side walls and inner wall of the vehicle compartment (54) are fixedly connected with a plurality of pipe clamps, and the water supply pipe (811) and the installation pipe (813) are arranged in the pipe clamps.

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