High rigidity ensilage machine roll

The utility model aims to solve the problems of low hardness, poor wear resistance, large plastic deformation and poor rigidity of existing rolls, and provides a high hardness silage mill roll, including roll body, roll shaft and flange; the inner and outer flanges of the flange are fixed to connect roll shaft and roll body, the roll body is ultra-thin bimetallic centrifugal casting, the outer layer of the roll body is nickel, chromium and molybdenum alloy cold hard cast iron, and the inner layer of the roll body is nickel body. The flange has a ring groove. The roll of the high hardness silage mill has the advantages of lighter weight, simple structure, easy processing, low price and greatly reduced frequency of dismantling and replacement. 本实用新型是为了解决现有轧辊硬度低、耐磨性差、塑性变形大、刚性差等问题，提供种高硬度青贮机轧辊，包括辊体、辊轴和法兰；所述法兰内周和外周固定连接辊轴和辊体，辊体为超薄的双金属离心铸造件，辊体外层为镍、铬、钼合金冷硬铸铁，辊体内层为高强度灰铸铁；所述法兰具有环形凹槽。所述高硬度青贮机轧辊重量更轻、结构简单、易于加工、价格低廉、拆换频次大幅降低。