Automatic straightening device and method for scraper conveyer body of fully mechanized coal mining face

Abstract

The invention discloses an automatic straightening device and method for a scraper conveyer body of a fully mechanized coal mining face. The automatic straightening device comprises an elastic rod and a relative pose measuring device, wherein the elastic rod is arranged between any two adjacent hydraulic supports, and an angle transducer is arranged between the elastic rod and each of the two adjacent hydraulic supports; the relative post measuring device comprises an elastic connector arranged between any two adjacent middle troughs and provided with a strain transducer with the temperature compensation function; the angle transducers and the strain transducer are connected with a signal processing system through communication lines; the signal processing system communicates with an electrohydraulic control system through a data transmission module; and the electrohydraulic control system is connected with the hydraulic supports. According to the automatic straightening method, a voltage signal received by the electrohydraulic control system serves as the judgment reference, and corresponding actions are respectively implemented on the hydraulic supports and the scraper conveyer according to actual working conditions, so that positioning of the hydraulic supports and straightening control of the middle troughs of the scraper conveyer are realized, the straightening period is greatly shortened and the production efficiency is improved.

Description

technical field [0001] The invention relates to an automatic straightening device and method for a body of a scraper conveyor in a fully mechanized mining face. Background technique [0002] The working environment of the scraper conveyor is complex and changeable. In the process of advancing the equipment in the fully mechanized mining face, in addition to bearing the huge impact load, it is also affected by factors such as improper human operation on site, which makes the straightness of the scraper conveyor body unsatisfactory. Production requirements lead to serious consequences such as wear and tear of the scraper chain and dumbbell pins, wear and tear of the middle groove, and deformation of the fuselage, which in turn causes a chain reaction, resulting in the failure of the entire equipment and even the entire coal mining process to operate normally or even paralyzed, posing a huge security threat . As one of the main transportation equipment in the coal mine working...

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Problems solved by technology

[0003] At present, most mines in China still use manual methods in the coal mining face. The attitude control of the scraper conveyor is completed by pushing or pulling the hydraulic support. The movement control depends on the stroke sensor. The completion of the entire movement will cause a large error accumulation , the follow-up needs to be adjusted manually, and the accuracy is very low; new straightening methods such as wireless ranging technology, although to a certain extent eliminate the mechanical error of the mutual cooperation between the hydraulic support and the scraper conveyor, but are limited to the coal wall Under the premise of high flatness, the practicability is not strong; using optical fiber sensor to adjust the straightness, the transformation is convenient and the cost is low, but it is easily affected by the working environment of the mine, and the implementation feasibility is poor

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