J31-100型闭式单点压力机制动轮,原设计为整体式,靠制动轮上凸缘,通过制动杠杆控制制动带的松紧,达到制动的目的。在使用过程中,我们发现这种整体式的制动轮,有不够理想的地方:其一是更换不方便,需用拉模从曲轴上拉出:其二是制动轮凸缘一旦严重磨损,整只制动轮就得报废;其三是制动轮材料为HT200,凸缘部分不耐磨,特别是机器处于连冲状态时,磨损更快,得经常更换。如我厂在用的J31-100型闭式单点压力机4台(两班制作业),一年 J31-100 closed single-point press brake wheel, the original design as a whole, by the brake on the flange, brake lever control brake by the elastic belt, to brake the purpose. In use, we found that this one-piece brake wheel, there is less than ideal place: one is not easy to replace, the need to pull out from the crankshaft with a pull: the second is the brake wheel flange once severely worn , The entire brake wheel will have to scrapped; the third is the brake wheel material HT200, the flange part of the wear-resistant, especially in the machine even in the red state, wear faster, often replacement. As I plant in the use of J31-100 closed single-point press 4 (two-shift manufacturing), a year