1 引言 三角带传动的设计计算中,当按设计要求确定带的型号和选定带轮直径D_1、D_2后,还要确定带传动的中心距A和带的节线长度L_p,再确定相应的带长L_i。 一般说来,中心距是后确定的,但必须根据传动结构及空间情况初定出中心距A_0,其适度值为: 0.7(D_1+D_2)≤A≤2(D_1+D_2)(1) 根据初定中心距A_0,初 1 Introduction V-belt drive design and calculation, according to the design requirements to determine the belt model and the selected pulley diameter D_1, D_2, but also to determine the belt drive center distance A and the belt pitch length L_p, and then determine the appropriate With long L_i. In general, the center distance is determined after, but must be based on the transmission structure and space conditions to determine the center distance A_0, its modest value is: 0.7 (D_1 + D_2) ≤ A ≤ 2 (D_1 + D_2) (1) According to Initial center distance A_0, beginning