压路机滚筒由厚24 mm的钢板卷制后焊接而成,其内壁焊有数十块纵向和横向加强筋板。为了保证滚筒的强度和刚度,在其两端各焊有一个厚24mm钢板卷成的衬圈（见图 1）。对于滚筒衬圈的切割下料,原工艺方法是将厚24 mm的钢板卷制成直径1672 mm、高约2～3m的圆筒后将其水平放置在地面上,然后在圆筒的外壁上划切割线,再利用磁力切割机的磁性使其吸附在圆筒外壁上,一边沿线爬坡切割,一边用人撬动圆筒,使其匀速地向与切割机运行相反的方向滚动,气焊工必须时刻注意切割机是否沿线运行。这样,一个衬圈的切割大约需要30min;不仅生产效率低,而且切割质量差、劳动强度大,作业环境也受限制。为此,我们研制了一种切割滚筒衬圈的专用设备——旋转式切割机 Roller roller 24 mm thick by the rolling of steel made of its wall welded dozens of vertical and horizontal stiffener plate. In order to ensure the strength and rigidity of the drum, a 24 mm thick steel plate is welded at both ends (see Figure 1). For the cutting and blanking of the cylinder liner, the original process is to roll a 24 mm thick steel plate into a cylinder with a diameter of 1672 mm and a height of about 2 to 3 m, place it horizontally on the ground, and then on the outer wall of the cylinder Cut the cutting line, and then use the magnetic force of the magnetic cutting machine so that it is adsorbed on the outer wall of the cylinder, while climbing along the line cutting, while pry the cylinder with a person to make it uniform and cutting machine running in the opposite direction of rolling gas welder must Always pay attention to whether the cutting machine along the line. In this way, a liner cutting takes about 30min; not only low production efficiency, but also poor cutting quality, labor-intensive, operating environment is also limited. To this end, we have developed a special equipment for cutting the cylinder liner - rotary cutting machine