CG6125高精度车床,其无级变速器是摩擦盘式的。该变速器借摩擦力传递功率,原设计为从动轴与皮带轮轴通过平键相连,由于机床在使用过程中经常正、反车,故该键受冲击力和扭力较大,极易损坏。所以这部分出故障较多。为此,我厂对此部分进行了改进,原从动轴因键槽磨损已坏,为便于修复增加一个轴套(如图1所示,轴套上开有油槽以便于润滑)与从动轴紧配,轴套外装有键盘,键盘上有对称两个台阶键(如图2所示),皮带 CG6125 high-precision lathe, the CVT is friction disc type. The transmission transmission power by friction, the original design for the driven shaft and the pulley shaft connected by the flat key, because the machine is often in use, anti-car, so the key by the impact and torque larger, easily damaged. So this part of the fault more. To this end, I plant this part has been improved, the original driven shaft due to the keyway wear has been bad, in order to facilitate the repair to increase a sleeve (as shown in Figure 1, the sleeve has a groove on the oil for lubrication) and the driven shaft Tight fitting, the sleeve is equipped with a keyboard, the keyboard has two symmetrical two step keys (shown in Figure 2), the belt