Frequency conversion speed regulation control device of scraper conveyer

Abstract

The invention discloses a frequency conversion speed regulation control device of a scraper conveyer, belongs to the technical field of frequency conversion speed regulation control of the scraper conveyer, and aims to solve the technical problem of providing the frequency conversion speed regulation control device which can regulate the running speed of the scraper conveyer in a self-adaptive manner according to the load condition. According to the technical scheme for solving the technical problem, the frequency conversion speed regulation control device comprises a mining explosion suppression and ntrinsically-safe type control box, wherein a central controller and a data communication module are arranged in the mining explosion suppression and ntrinsically-safe type control box; the central controller is connected with the data communication module through a wire; the signal input end of the data communication module is connected with a coal position sensor; the data communicationmodule is in both-way connection with a frequency converter through industrial communication cables; the frequency converter comprises a handpiece frequency converter and a tail frequency converter; the handpiece frequency converter is connected with a handpiece motor; and the tail frequency converter is connected with a tail motor. The frequency conversion speed regulation control device is applicable to scraper conveyers.

Description

technical field [0001] The invention discloses a frequency conversion speed regulation control device for a scraper conveyor, which belongs to the technical field of frequency conversion speed regulation control for scraper conveyors. Background technique [0002] In the process of comprehensive mechanized mining of coal mines, the scraper conveyor is an important transportation equipment in the fully mechanized mining face. It is used in conjunction with the shearer. When working, the drive motor of the scraper conveyor needs to consider the change of the load. When the equipment is in normal operation, the margin is large, and the drive motor has a long period of light-load and no-load operation. When running at full load, the load rate of the drive motor only reaches about 50%, and the power factor is less than 0.8. There are serious problems such as electric energy waste and wear in the operation of the motor; in order to make the scraper conveyor run more efficiently an...

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Problems solved by technology

[0002] In the process of comprehensive mechanized mining of coal mines, the scraper conveyor is an important transportation equipment in the fully mechanized mining face. It is used in conjunction with the shearer. When working, the drive motor of the scraper conveyor needs to consider the change of the load. When the equipment is in normal operation, the margin is large, and the drive motor has a long period of light-load and no-load operation. When running at full load, the load rate of the drive motor only reaches about 50%, and the power factor is less than 0.8. There are serious problems such as electric energy waste and wear in the operation of the motor; in order to make the scraper conveyor run more efficiently and save energy, it is necessary to design a A frequency conversion speed regulation control device, so that the running speed of the scraper conveyor can be adaptively adjusted according to the load condition

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