An intelligent detection device for soil and stone particle gradation in loading process

Abstract

The utility model discloses a kind of soil and stone material particle grading intelligent detection devices for loading process, belong to particle grading detection technical field, including conveyer belt, blanking hopper, material arrangement module, detection module, speed sensor, intelligent unit and dust removal component;Material arrangement module includes two guide inclined plate of symmetrical arrangement, vibrator, height sensor and height adjusting unit;Height adjusting unit includes baffle, laser ranging sensor being arranged below baffle, threaded rod and two rotary motors;Detection module includes two fixed frame, 2D detection unit and 3D detection unit;2D detection unit includes industrial camera and the light supplementing light source being arranged around industrial camera;3D detection unit includes 3D scanning camera and TOF range finder;The soil and stone material particle grading intelligent detection device for loading process in the utility model is adopted, solves the problem that current particle grading detection real-time is poor, accuracy is low.

Description

Technical Field

[0001] This utility model relates to the field of particle size distribution detection technology, and in particular to an intelligent detection device for particle size distribution of soil and rock materials used in the loading process. Background Technology

[0002] In water conservancy, construction, and other engineering projects, the particle size distribution of soil and rock materials has a significant impact on the quality of the project. Currently, the testing of particle size distribution of soil and rock materials usually involves sampling from the loaded soil and rock materials after loading, and then sending the samples to a laboratory for testing.

[0003] This traditional testing method has obvious shortcomings: on the one hand, the testing process is time-consuming and cannot obtain particle size distribution information in real time during loading. When the test results do not meet the requirements, the loaded soil and rock materials need to be reprocessed, affecting the progress of the project. On the other hand, the sampling is highly random and may not accurately reflect the particle size distribution of the entire batch of soil and rock materials loaded, resulting in a decrease in the accuracy of the test results.

[0004] Therefore, there is a need for a device that can detect particle size distribution of soil and rock materials during the loading process from the soil and rock yard, in order to improve the real-time performance and accuracy of the detection. Utility Model Content

[0005] The purpose of this invention is to provide an intelligent detection device for particle size distribution of soil and rock materials during the loading process, which solves the problems of poor real-time performance and low accuracy of existing particle size distribution detection.

[0006] To achieve the above objectives, this utility model provides an intelligent detection device for particle size distribution of soil and rock materials during the loading process, including a conveyor belt, a hopper disposed above the input end of the conveyor belt, a material sorting module, a detection module disposed on the conveyor belt, a speed sensor, an intelligent unit, and a dust removal component.

[0007] The material sorting module includes, in sequence according to the direction of the conveyor belt movement, two symmetrically arranged guide ramps, a vibrator, a height sensor, and a height adjustment unit respectively installed on the two guide ramps;

[0008] The height adjustment unit includes a baffle, a laser rangefinder sensor located below the baffle, a threaded rod, and two rotary motors. The two rotary motors are symmetrically installed on both sides of the conveyor belt. The output shaft of the rotary motor is fixed to one end of the threaded rod, and the threaded rod is parallel to the vertical direction. The two ends of the baffle are provided with internal threaded sleeves, and the other end of the threaded rod passes through the internal threaded sleeves and is tightly engaged with the internal threads.

[0009] The detection module includes two fixtures, a 2D detection unit mounted on the first fixture, and a 3D detection unit mounted on the second fixture.

[0010] Furthermore, in the material sorting module, the two guide ramps are arranged in a figure-eight shape.

[0011] Furthermore, a three-dimensional lidar is selected as the height sensor to identify the height of the bottom layer of stones in a disordered pile of soil and rock.

[0012] Furthermore, the 2D inspection unit includes an industrial camera and a supplementary light source surrounding the industrial camera; the industrial camera acquires planar visual information of the soil and rock material, including color, outline, etc.; the supplementary light source is a ring-shaped light strip; the 3D inspection unit includes a 3D scanning camera and a TOF rangefinder; the 3D scanning camera is used to acquire information such as the shape, size, and surface unevenness of the soil and rock material.

[0013] Furthermore, speed sensors are used to provide feedback on the operating speed of the conveyor belt.

[0014] Furthermore, the intelligent unit includes a controller, a data storage device, and a display screen; the controller receives data from the speed sensor and the height sensor, and controls the rotation of the rotary motor based on the data from the laser rangefinder to adjust the height of the baffle; the data storage device stores the data collected by the detection module and performs calculations and analyses on the data to obtain the particle size distribution curve, and outputs the particle size distribution curve to the display screen for display.

[0015] Furthermore, the dust removal assembly includes two high-pressure air nozzles, one dust suction hood, and three negative pressure fans; the high-pressure air nozzles are respectively positioned diagonally above and below the hopper; the dust suction hood is positioned above the output end of the conveyor belt; each high-pressure air nozzle and dust suction hood is connected to a negative pressure fan.

[0016] The beneficial effects of the intelligent detection device for particle size distribution of soil and rock materials during loading as described in this utility model are:

[0017] (1) Full quantity testing: The material sorting module sorts the soil and stone into a single layer, and combined with the testing module, it realizes the individual testing of all soil and stone particles, solving the problem of insufficient representativeness of sampling testing.

[0018] (2) Strong real-time performance: The intelligent unit generates a particle size distribution curve in real time based on the data returned by the detection module and displays it on the display screen to meet the real-time monitoring requirements during continuous loading.

[0019] (3) Data integrity: The data storage device stores all the test data, providing a reliable basis for engineering quality traceability.

[0020] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the height adjustment unit according to an embodiment of the present invention.

[0023] Figure Labels

[0024] 1. Conveyor belt; 2. Feed hopper; 3. Material sorting module; 31. Guide ramp; 32. Vibrator; 33. Height sensor; 34. Height adjustment unit; 341. Baffle; 342. Laser rangefinder; 343. Threaded rod; 344. Rotary motor; 4. Detection module; 41. Industrial camera; 42. Complementary lighting source; 43. 3D detection unit; 44. Fixture; 5. Speed ​​sensor; 6. High-pressure air nozzle; 7. Dust collection hood. Detailed Implementation

[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] In this application, unless otherwise defined, 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 application pertains. In case of any inconsistency, the meaning as set forth in this specification or derived from the content described herein shall prevail. Furthermore, the terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit this application. To accurately describe the technical content of this application and to accurately understand this utility model, the following explanations or definitions of the terms used in this specification are provided before describing specific embodiments:

[0027] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0028] Please see Figure 1-2A smart detection device for particle size distribution of soil and rock materials during loading includes a conveyor belt 1, a hopper 2 disposed above the input end of the conveyor belt 1, a material sorting module 3, a detection module 4 disposed on the conveyor belt 1, a speed sensor 5, an intelligent unit, and a dust removal component; the speed sensor 5 is used to provide feedback on the operating speed of the conveyor belt 1.

[0029] The material sorting module 3 includes, in sequence according to the movement direction of the conveyor belt 1, two symmetrically arranged guide ramps 31, a vibrator 32 respectively set on the two guide ramps 31, a height sensor 33 and a height adjustment unit 34; the two guide ramps 31 are arranged in a figure-eight shape; the height sensor 33 is a three-dimensional lidar, used to identify the height of the bottom stone material in the disordered pile of soil and stone.

[0030] The height adjustment unit 34 includes a baffle 341, a laser rangefinder 342 disposed below the baffle 341, a threaded rod 343, and two rotary motors 344. The two rotary motors 344 are symmetrically mounted on both sides of the conveyor belt 1. The output shaft of the rotary motor 344 is fixed to one end of the threaded rod 343, and the threaded rod 343 is parallel to the vertical direction. The two ends of the baffle 341 are provided with internal threaded sleeves, and the other end of the threaded rod 343 passes through the internal threaded sleeve and is tightly engaged with the internal thread.

[0031] The detection module 4 includes two fixed frames 44, a 2D detection unit set on the first fixed frame 44, and a 3D detection unit 43 set on the second fixed frame 44. The 2D detection unit includes an industrial camera 41 and a supplementary light source 42 set around the industrial camera 41. The industrial camera 41 acquires planar visual information of the soil and rock, including color, outline, etc. The supplementary light source 42 is a ring light strip. The 3D detection unit 43 includes a 3D scanning camera and a TOF rangefinder. The 3D scanning camera is used to acquire information such as the shape, size, and surface unevenness of the soil and rock.

[0032] The intelligent unit includes a controller, a data storage device, and a display screen. The controller receives data from the speed sensor 5 and the height sensor 33, and controls the rotation of the rotary motor 344 based on the data from the laser rangefinder 342 to adjust the height of the baffle 341. The data storage device stores the data collected by the detection module 4, performs calculations and analysis on the data to obtain the particle size distribution curve, and outputs the particle size distribution curve to the display screen for display.

[0033] The dust removal assembly includes two high-pressure air nozzles 6, a dust suction hood 7, and three negative pressure fans; the high-pressure air nozzles 6 are respectively located diagonally above and diagonally below the hopper 2; the dust suction hood 7 is located above the output end of the conveyor belt 1; each high-pressure air nozzle 6 and dust suction hood 7 is connected to a negative pressure fan.

[0034] During the loading process of soil and rock materials, the soil and rock materials fall through the hopper 2 to the input end of the conveyor belt 1. The conveyor belt 1 rotates at a constant speed, and the vibrator 32 drives the guide ramp 31 to vibrate, causing the soil and rock materials reaching the area of ​​the guide ramp 31 to gather in the center of the conveyor belt 1. The three-dimensional laser radar scans the height of the bottom layer of soil and rock materials and feeds the height information back to the controller. The controller controls the rotary motor 344 to work according to the height information to adjust the distance between the baffle 341 and the conveyor belt 1. When the soil and rock materials pass through the baffle 341, the upper layer of soil and rock materials is blocked by the baffle, so that only the soil and rock materials are blocked. A bottom layer is laid flat on conveyor belt 1; when the soil and stone material arrives at the 2D detection unit, the industrial camera 41 collects information such as the shape and edge contour of the soil and stone material, and feeds the collected information back to the data storage for later use; when the soil and stone material arrives at the 3D detection unit 43, the 3D scanning camera collects information such as the shape, size, and surface unevenness of the soil and stone material, and feeds the collected information back to the data storage; the data storage stores and calculates the information collected by the detection module, and outputs the particle size distribution curve to the display screen; during the above process, the dust removal component works synchronously to suck away useless dust.

[0035] Therefore, the intelligent detection device for soil and rock particle size distribution during loading, as described in this utility model, can sort the soil and rock into a single layer through the material sorting module, and combined with the detection module, realize the detection of all soil and rock particles one by one, solving the problem of insufficient representativeness of sampling detection; the intelligent unit generates a particle size distribution curve in real time based on the data transmitted back from the detection module and displays it on the display screen, meeting the real-time monitoring needs during continuous loading; and the data storage device stores all the detection data, providing a reliable basis for engineering quality traceability.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. An intelligent detection device for particle size distribution of soil and rock materials during loading, characterized in that: It includes a conveyor belt, a hopper located above the input end of the conveyor belt, a material sorting module, a detection module located on the conveyor belt, a speed sensor, an intelligent unit, and a dust removal component; The material sorting module includes, in sequence according to the direction of the conveyor belt movement, two symmetrically arranged guide ramps, a vibrator, a height sensor, and a height adjustment unit respectively installed on the two guide ramps; The height adjustment unit includes a baffle, a laser rangefinder sensor located below the baffle, a threaded rod, and two rotary motors. The two rotary motors are symmetrically installed on both sides of the conveyor belt. The output shaft of the rotary motor is fixed to one end of the threaded rod, and the threaded rod is parallel to the vertical direction. The two ends of the baffle are provided with internal threaded sleeves, and the other end of the threaded rod passes through the internal threaded sleeves and is tightly engaged with the internal threads. The detection module includes two fixtures, a 2D detection unit mounted on the first fixture, and a 3D detection unit mounted on the second fixture.

2. The intelligent detection device for particle size distribution of soil and rock materials during loading process according to claim 1, characterized in that: In the material sorting module, two guide ramps are arranged in a figure-eight shape.

3. The intelligent detection device for particle size distribution of soil and rock materials during loading process according to claim 1, characterized in that: The height sensor uses a three-dimensional lidar to identify the height of the bottom layer of stones in a disordered pile of soil and rock.

4. The intelligent detection device for particle size distribution of soil and rock materials during loading process according to claim 1, characterized in that: The 2D inspection unit includes an industrial camera and a supplementary light source surrounding the industrial camera; the industrial camera acquires planar visual information of the soil and rock material, including color and outline; the supplementary light source is a ring-shaped light strip; The 3D inspection unit includes a 3D scanning camera and a TOF rangefinder; the 3D scanning camera is used to acquire information on the shape, size, and surface unevenness of the soil and rock.

5. The intelligent detection device for particle size distribution of soil and rock materials during loading process according to claim 1, characterized in that: Speed ​​sensors are used to provide feedback on the operating speed of the conveyor belt.

6. The intelligent detection device for particle size distribution of soil and rock materials during loading process according to claim 1, characterized in that: The intelligent unit includes a controller, a data storage device, and a display screen; the controller receives data from the speed sensor and the height sensor, and controls the rotation of the rotary motor based on the data from the laser rangefinder to adjust the height of the baffle.

7. The intelligent detection device for particle size distribution of soil and rock materials during loading process according to claim 1, characterized in that: The dust removal assembly includes two high-pressure air nozzles, one dust suction hood, and three negative pressure fans; the high-pressure air nozzles are respectively located diagonally above and below the hopper; the dust suction hood is located above the output end of the conveyor belt; each high-pressure air nozzle and dust suction hood is connected to a negative pressure fan.

Images