Intelligent water-cooling permanent magnet frequency conversion direct-driving system for scraper conveyor

Abstract

The invention discloses an intelligent water-cooling permanent magnet frequency conversion direct-driving system for a scraper conveyor and belongs to the technical field of transportation of underground coal mine materials. The intelligent water-cooling permanent magnet frequency conversion direct-driving system mainly comprises permanent magnet motors, a controller, a frequency convertor I and the like. One ends of the permanent magnet motors are directly connected with chain wheels through couplers, and no decelerator is arranged between the permanent magnet motors and the chain wheels. Theintelligent water-cooling permanent magnet frequency conversion direct-driving system further comprises a coder I, a coder II, a tension and pressure sensor and a cooling auxiliary device, wherein the coder I is connected with the other end of the scraper conveyor chain wheel I, and the coder II is connected with the other end of the scraper conveyor chain wheel II. The cooling auxiliary device particularly comprises a water tank, a water pump, a cooler, a two-position three-way electromagnetic valve, a temperature sensor I, a temperature sensor II, a water pipe, a frequency convertor serpentine cooling water pipe and a permanent magnet synchronous motor cooling water pipe. According to the intelligent water-cooling permanent magnet frequency conversion direct-driving system for the scraper conveyor, the defects that according to an existing underground coal mine scraper conveyor driving system, a transmission chain is excessively long, the driving characteristic is poor, heavy load starting is insufficient, the cooling effect of a frequency conversion driving system is insufficient and other defects are overcome.

Description

technical field [0001] The invention belongs to the technical field of underground material transportation in coal mines, and specifically refers to an intelligent water-cooled permanent magnet frequency conversion direct drive system for a scraper conveyor. Background technique [0002] Due to the bendability of the circular chain and the middle groove, the scraper conveyor on the working face can adapt to the ups and downs of the bottom plate and can move forward as a whole. Coal Face Production Capacity and Efficiency. [0003] The traditional scraper conveyor drive mode adopts "asynchronous motor + hydraulic coupling + reducer + sprocket", "asynchronous motor + controllable transmission + reducer + sprocket", these two transmission methods are relatively mature , the equipment structure is simple and the price advantage is obvious, but there are generally disadvantages such as long transmission chain, low efficiency, high failure rate, serious vibration and noise, leaka...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned existing problems, the present invention provides an intelligent water-cooled scraper conveyor permanent magnet frequency conversion direct drive system, which solves the problem of excessively long transmission chain, poor driving characteristics, and heavy-duty startup of the existing coal mine underground scraper conveyor drive system. Insufficient and insufficient cooling of the variable frequency drive system and other disadvantages

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