履带式挖掘机行走装置的传动方式多为高速马达驱动 ,由于马达转速较高 ,因此减速装置需一对或两对正齿轮与一列或两列行星齿轮组合成减速器 ,如图 1所示。图 1ａ为单列行星齿轮减速器 ,图 1ｂ为双列行星齿轮减速器。这两种减速器有一共同点 ,都是以太阳轮为主动件、行星架为从 Because of the high motor speed, the decelerator needs one pair or two pairs of spur gears and one or two rows of planetary gears to form a reducer, as shown in FIG. 1. Figure 1a single planetary gear reducer, Figure 1b double planetary gear reducer. The two reducer have one thing in common, are based on the sun gear as the active parts, planet carrier from