Demonstration model of roller straightening machine

The invention discloses a demonstration model of a roller straightening machine. The demonstration model is aimed at vividly demonstrating the working principles of a main drive system and a press-down system of a roller straightening machine. The model is formed by a main drive system and a press-down system. The main drive system comprises a main motor, main drive distribution gears, universal spindles and straightening rollers. The press-down system comprises bull gears, shaft couplings, worm gears, press-down screws, connection shafts, bearings, worms, pinions, a press-down motor, frames, straightening rollers and bearing pedestals, The mechanically-driven worm gears, worms, gears, screws and nuts are combined on the model quite smartly. In terms of the design of the press-down screws, the worm gears can serve as drive parts for secondary deceleration, and also can serve as press-down nuts for press-down adjustment. The model can be used for teaching of curriculums including steel rolling machinery, mechanical designs, mechanical principles, automation of metallurgy equipment and maintenance of mechanical equipment, and has wide application prospects.