Device for intelligently monitoring state of shearer picks based on linear Hall multi-probe structure

An intelligent monitoring and shearer technology, which is applied to mining equipment, cutting machinery, mining equipment, etc., can solve the problems of not being able to detect broken teeth and damage of shearer picks in time

Inactive Publication Date: 2020-08-07
HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides an intelligent monitoring device for shearer pick status based on linear Hall

Method used

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  • Device for intelligently monitoring state of shearer picks based on linear Hall multi-probe structure
  • Device for intelligently monitoring state of shearer picks based on linear Hall multi-probe structure
  • Device for intelligently monitoring state of shearer picks based on linear Hall multi-probe structure

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specific Embodiment approach 1

[0008] Specific implementation mode one: refer to Figure 1 to Figure 9 Specifically illustrate this embodiment, the intelligent monitoring coal shearer pick state device based on the linear Hall multi-probe described in this embodiment consists of multiple Hall elements 1, permanent magnets 2, multiple signal amplifier circuits 3, multiple A / D conversion circuit 4, controller circuit 5 and wireless signal sending device 6;

[0009] The plurality of Hall elements 1 are arranged in parallel in a row, the permanent magnets 2 are arranged at the rear ends of all Hall elements 1, and the signal output end of each Hall element 1 is connected to the signal input end of a signal amplifier circuit 3, each The signal output end of each signal amplifying circuit 3 is connected to the signal input end of an A / D conversion circuit 4, and the signal output end of each A / D conversion circuit 4 is connected to a signal input end of the controller circuit 5, and the signal output end of the ...

specific Embodiment approach 2

[0017] Embodiment 2: This embodiment is further described on the basis of Embodiment 1. In this embodiment, the A / D conversion circuit 4 is a high-speed A / D sampling chip (model is AD7705 / 06). After amplifying and processing the signal output by the Hall element, a series of signals are obtained after processing by a high-speed A / D sampling chip. By comparing the collected signals, the state of the pick can be judged.

specific Embodiment approach 3

[0018] Specific implementation mode three: the following combination Figure 4 This embodiment will be specifically described. This embodiment is further described on the basis of Embodiment 1, and it also includes a parking signal output device 20, the signal input end of the parking signal output device 20 is connected to the signal output end of the controller circuit 5, and the signal output end of the controller circuit 5 The signal output end is connected to the power supply controller of the coal shearer. With such arrangement, the present invention will directly stop the working state of the shearer pick when the tooth breakage and damage of the pick are detected, and adopt intelligent braking measures to avoid production accidents.

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Abstract

The invention relates to a monitoring device for shearer picks, in particular to a device for intelligently monitoring the state of shearer picks based on a linear Hall multi-probe structure. The device solves the problem that the breakage or damage of the shearer picks cannot be found in time in the prior art. The device comprises multiple Hall elements, a permanent magnet, multiple signal amplification circuits, multiple A/D conversion circuits, a controller circuit and a wireless signal transmitter. The multiple Hall elements are arranged in parallel in a row, the permanent magnet is arranged at the rear ends of all the Hall elements, the signal output end of each Hall element is connected with the signal input end of one signal amplification circuit, the signal output end of each signal amplification circuit is connected with the signal input end of one A/D conversion circuit, the signal output end of each A/D conversion circuit is connected with one signal input end of the controller circuit, and the signal output end of the controller circuit is connected with the signal input end of the wireless signal transmitter. By means of the device, the breakage or damage of the shearer picks can be found in time, and potential safety hazards are eliminated.

Description

technical field [0001] The invention relates to a monitoring device for a shearer pick. Background technique [0002] The coal shearer needs the picks to rub against the coal seam during work, so as to peel off the coal seam. During the friction process, the pick will inevitably come into contact with the rock. Due to the high-speed rotation of the pick, it is easy to generate high-temperature sparks. The high-temperature sparks will ignite the leaked gas or coal seam dust, causing incalculable losses. Although the prior art adopts the coating to treat the pick, the coating of the pick will be worn, and the pick may be broken and damaged during the collision with the rock. Therefore, it is very important to detect the change of the tooth shape of the pick in time. In a word, if the broken tooth phenomenon cannot be found in time and the work of the pick is stopped, the friction between the broken tooth and the rock in the coal seam will cause sparks, and a potential safety...

Claims

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Application Information

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IPC IPC(8): E21C35/24E21C35/04E21F17/18E21C35/18
CPCE21C35/04E21C35/18E21C35/24E21F17/18
Inventor 金珠鹏李伟刘刚刘学文
Owner HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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