A composite roller ring

Abstract

The invention belongs to the field of roll rings, and is specifically a composite roll ring, which includes a roll shaft and a roll shell, and the roll shell is installed on the roll shaft; the roll shell is composed of an inner ring and an outer ring, and the outer ring A set of V-shaped clamping grooves are evenly distributed on the bottom surface, and a set of claws are evenly distributed on the upper surface of the inner ring, and the claws engage the inner ring and the outer ring. When the inner ring expands and contracts, the snap ring The movement in the card slot increases the toughness of the inner ring; the outer ring is provided with a cavity, and a support ball is arranged in the cavity, and a support rod is hinged on the support ball, and the support ball and the card slot The push blocks are connected with connecting ropes. When the connecting ropes are pulled outwards, the supporting balls drive the two supporting rods to squeeze to both sides of the cavity to strengthen the inner strength of the outer ring and effectively reduce the temperature difference of the roller ring. Crack damage caused by external force impact; the outer ring is provided with an air bag, and the air bag blows out the particles infiltrated in the gap between the roller shaft and the inner ring.

Description

technical field [0001] The invention belongs to the field of roll rings, in particular to a composite roll ring. Background technique [0002] The roll ring is the part between or outside the rolling grooves on the profile roll body. The end roll rings located at both ends of the roll body can prevent the oxide scale from falling into the bearing; the middle roll ring located between two adjacent passes is mainly Used to separate the pass and withstand lateral pressure, the basic parameters of the roll ring are the roll ring height and the roll ring width. [0003] Roll ring The roll is affected by assembly stress, thermal stress and rolling stress during the rolling process. The stress on the roll ring is the algebraic sum of the stress values ​​along the section; the tangential tensile stress on the inner diameter of the roll ring is the largest during the rolling process. The material roll ring is beneficial to improve the service life of the roll. The inner layer can be...

AI Technical Summary

Problems solved by technology

[0004] However, considering the influence of unstable parameters such as temperature difference of the roll ring and rolling force on the roll ring during the rolling process, if the fluctuation of the above parameters is too large, such as the thermal expansion of the roll shaft and the stress between the roll ring becomes larger, resulting in The broken cracks caused by excessive stress, the wear of the roller shaft by fine particles, and the crack damage on the surface of the roller ring caused by the impact on the surface of the roller ring, etc., are easy to cause certain damage to the roller ring, so that the service life of the roller ring is greatly improved. reduce

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