Continuous rolling type steel rail bending machine

Abstract

The invention discloses a continuous rolling type steel rail bending machine. In the invention, two small gears respectively arranged on two vertical electric reduction gear output shafts jointly drive a middle gear, and the middle gear drives two large gears respectively arranged on two transmission rollers to ensure that the two transmission rollers are synchronously rotated in the same direction; the two transmission rollers are directly arranged on a main stand; a press roller is not fixed and connected with a press oil cylinder I and a press oil cylinder II and slides front and back in the stand through the stretching of the oil cylinders to realize the adjustment of gaps of the press roller and the transmission rollers and the load pressing of the press roller; the bending force of the press roller is transmitted to the stand through the press oil cylinder II; when the press roller works, the two cylinders are stressed oppositely through setting the backpressure of the press oilcylinder II; and the synchronization of the two oil cylinders is realized through connecting the two oil cylinder in series. The machine has the advantages of compact structure, small occupation areaand easy realization of mechanization and line production, worker labor intensity reduction and higher productivity.

Description

technical field [0001] The invention relates to a continuous rolling rail bending machine, which is especially suitable for continuous bending and forming of heavy rails. It belongs to the profile forming equipment in the mechanical processing equipment. Background technique [0002] Large-scale trolley-type stackers and reclaimers and dumpers are the leading products of our company. In recent years, with the continuous increase of market demand, mass production has gradually formed. The tracks of the rotary mechanisms of these equipment are made of heavy-duty steel rails through plastic bending The deformation is made with a certain radius of curvature, and the quality of its bending is directly related to the quality of the entire product. Because the yield limit of the rail is high and the flexural modulus is large, a large bending force is required. In the past, the workshop used a large hydraulic press to repeatedly bend the rail at multiple points to achieve an approx...

AI Technical Summary

Problems solved by technology

[0008] The invention solves the problems of discontinuous radius of curvature, low accuracy, high labor intensity of workers, long time occupied by auxiliary equipment, low productivity, unsafe manual operation and the like existing in the current bending of steel rails by presses.

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