A control method for a blade machine flat material

Abstract

The application discloses a control method for a scraper machine to level material, wherein the scraper machine receives a leveling instruction, moves the scraper machine body, drives the beam, moves to a material pile area, and rotates the lower scraper and the upper scraper; a camera monitors the lower scraper in the interval from the 1 / 2 of the beam of the scraper machine to the scraper machine body, and realizes the leveling operation on the material pile. The application can accurately control the ending position of the leveling of the scraper machine and improve the leveling level of the scraper machine.

Description

Technical Field

[0001] This invention relates to the field of scraper conveyors, and more particularly to a method for controlling the leveling of scraper conveyors, and even more particularly to a method for precisely controlling the leveling of scraper conveyors using image recognition technology. Background Technology

[0002] With the construction of digital material yards, scraper conveyors have achieved intelligent or remote automated operation. Operators on the scraper conveyor have moved from the on-vehicle control room to a centralized control room. The scraper conveyor's leveling operation control automatically calculates the end position of the leveling operation based on the material shape obtained from a 3D scan of the material grid. Due to differences in material pile height, material type, and moisture content, the algorithm for the leveling end position takes into full consideration safety and leaves a large margin to ensure that the material does not fall onto the conveyor belt during the leveling process. This results in a significant distance between the automatic leveling end position and the actual leveling end position (generally controlled to end when the material is leveled to 1 meter from the edge of the hopper). During intelligent process scheduling in the material yard, the scraper conveyor's material handling operation takes a long time (>10 minutes) to scrape the material onto the conveyor belt, affecting the efficiency of the process.

[0003] Therefore, it is necessary to develop targeted control methods for scraper conveyor leveling to improve the leveling performance of scraper conveyors. Summary of the Invention

[0004] Purpose of the invention: To address the shortcomings and defects of the existing technology, the present invention provides a control method for leveling material on a scraper conveyor, which can accurately control the end position of leveling material on the scraper conveyor and improve the leveling level of the scraper conveyor.

[0005] Technical solution: The present invention provides a control method for leveling material using a scraper conveyor, characterized in that: upon receiving a leveling command, the scraper conveyor body moves, driving the main beam to the material pile area, and the lower scraper and upper scraper rotate. A camera monitors the lower scraper between 1 / 2 of the main beam and the scraper conveyor body, thereby achieving the leveling operation of the material pile.

[0006] The material leveling operation uses the highest point of the material pile as the operation centerline and automatically controls the movement of the scraper conveyor body according to the inverted triangle platform pattern, driving the main beam of the scraper conveyor to perform the material leveling operation.

[0007] The method for controlling the leveling of scraper conveyors according to the present invention is characterized by comprising the following steps:

[0008] 1) Install a monitoring camera on the scraper conveyor trolley to record the contact between the lower scraper blades and the material in the area from 1 / 2 to the root of the scraper beam;

[0009] 2) Using visual technology, identify the number of scrapers that do not contact the bulk material from the root of the scraper beam to the halfway point of the beam during the scraper conveyor leveling operation.

[0010] 3) When the scraper blades within a 1-meter radius of the scraper beam contact the material surface, the scraper leveling operation ends when it reaches the boundary of the leveling endpoint.

[0011] The scraper conveyor body has several sets of lower and upper scrapers on its main beam, a discharge belt at the bottom, and a camera on the side.

[0012] The scraper conveyor body is located on the concrete inclined platform at the bottom edge of the material grid.

[0013] The bottom edge of the grating is provided with concrete side walls on both sides of the inclined concrete platform.

[0014] The camera is mounted on the platform of the scraper conveyor body via a camera mounting rod and moves with the scraper conveyor body.

[0015] The lower scraper and the upper scraper are fixed on the chain and rotate on the beam to scrape material, driven by an external motor.

[0016] Beneficial Effects: Compared with existing technologies, this invention has the following significant advantages: This invention allows for remote operation of the scraper conveyor for automatic material leveling, flattening conical or irregularly shaped material piles into a frustum shape along the scraper conveyor's main arm, facilitating efficient material handling by the scraper conveyor. This invention improves the precise control of the scraper conveyor's leveling end position, ensuring the scraper conveyor's material handling efficiency in intelligent material yards and enhancing the overall control precision of the process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] In the diagram, 1 is the scraper conveyor body; 2 is the main beam; 3 is the lower scraper; 4 is the upper scraper; 5 is the camera mounting rod; 6 is the camera; 7 is the discharge belt; 8 is the concrete wall on the side of the material grid; and 9 is the concrete inclined platform at the bottom edge of the material grid. Detailed Implementation

[0019] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] The scraper conveyor leveling control method of the present invention is as follows: when the scraper conveyor receives the leveling command, it moves the scraper conveyor body 1, drives the main beam 2, and moves to the material pile area (the leveling is based on the highest point of the material pile as the operation center line, and the scraper conveyor body 1 is automatically controlled to move in the inverted triangle platform mode, driving the main beam 2 of the scraper conveyor to perform the leveling operation). The lower scraper 3 and the upper scraper 4 rotate to realize the leveling operation of the material pile.

[0021] The monitoring range of camera 6 is from 1 / 2 of the main beam 2 of the scraper conveyor to the lower scraper 3 of the scraper conveyor body 1. The concrete inclined platform 9 at the bottom edge of the material grid is the discharge area after the scraper conveyor picks up the material.

[0022] The scraper conveyor leveling control method of the present invention includes the following steps:

[0023] 1) Install a monitoring camera 6 on the scraper conveyor trolley to record the contact between the lower scraper 3 and the material in the area from 1 / 2 of the scraper beam to the root (near the scraper body 1);

[0024] 2) Using visual technology, identify the number of scrapers 3 that are not in contact with the bulk material from the root of the scraper beam 2 to the lower half of the beam during the scraper leveling operation.

[0025] 3) When the scraper blades in the 1-meter area at the root of the scraper beam (this value can be set according to the actual situation) contact the material surface, the scraper leveling operation ends when it reaches the end boundary of the leveling operation.

[0026] The scraper conveyor body 1 of this invention has a main beam 2 equipped with several sets of lower scrapers 3 and upper scrapers 4. A discharge belt 7 is located at the lower part of the scraper conveyor body 1, and a camera 6 is located on the side of the scraper conveyor body 1. The scraper conveyor body 1 is situated on a concrete inclined platform 9 at the bottom edge of the material grid. Concrete side walls 8 are located on both sides of the concrete inclined platform 9 at the bottom edge of the material grid. The camera 6 is mounted on the platform of the scraper conveyor body 1 via a camera mounting rod 5 and moves with the scraper conveyor body 1. The lower scrapers 3 and upper scrapers 4 are fixed to a chain and are driven by an external motor to rotate and scrape material on the main beam 2.

[0027] This invention enables remote operation of a scraper conveyor for automatic material leveling, flattening conical or irregularly shaped material piles into a frustum shape along the scraper's main arm, facilitating efficient material handling by the scraper. This invention improves the precise control of the scraper's leveling end position, ensuring efficient material handling in intelligent material yards and enhancing overall process control accuracy.

Claims

1. A method for controlling the leveling of materials on a scraper conveyor, characterized in that: When the scraper conveyor receives the leveling command, it moves the scraper conveyor body (1), driving the main beam (2) to the material pile area. The lower scraper (3) and the upper scraper (4) rotate. The lower scraper (3) in the section from 1 / 2 of the main beam (2) to the scraper conveyor body (1) is monitored by the camera (6) to realize the leveling operation of the material pile. The leveling operation takes the highest point of the material pile as the operation centerline and automatically controls the scraper conveyor body (1) to move in an inverted triangle platform mode, driving the main beam (2) of the scraper conveyor to perform the leveling operation. The operation includes the following steps: 1) Install a monitoring camera (6) on the scraper conveyor trolley to record the contact between the lower scraper (3) and the material in the area from 1 / 2 to the root of the scraper beam; 2) Using visual technology, identify the number of scrapers (2) from the root to 1 / 2 of the lower part of the scraper beam (3) that do not contact the bulk material during the scraper beam leveling operation; 3) When the scraper blades in the 1-meter area at the root of the scraper beam (2) come into contact with the material surface, the scraper leveling operation ends when it reaches the boundary of the end point of the leveling operation.

2. The method for controlling the leveling of scraper conveyors according to claim 1, characterized in that: The main beam (2) of the scraper body (1) is equipped with several sets of lower scrapers (3) and upper scrapers (4). The lower part of the scraper body (1) is equipped with a discharge belt (7). The side of the scraper body (1) is equipped with a camera (6). The scraper body (1) is located on the concrete inclined platform (9) at the bottom edge of the material grid. The concrete inclined platform (9) at the bottom edge of the material grid is equipped with concrete walls (8) on both sides of the material grid side. The camera (6) is mounted on the platform of the scraper body (1) by a camera mounting rod (5) and moves with the scraper body (1). The lower scraper (3) and upper scraper (4) are fixed on the chain and are driven by an external motor to rotate and scrape material on the main beam (2).

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