该减速器用于两台JUS—100型三支点全液压打桩机的回转机构上。第一台使用到1236h后减速器损坏；第二台使用到1127h后出现同样故障。行星减速器的二级内齿圈7、行星轮12、行星架11和13、双列向心球面滚子轴承28严重磨损，无法继续使用（见图1）。图1减速器结构示意图1．齿轮轴 The reducer is used for the slewing mechanism of two JUS-100 type three-point hydraulic pile driver. The first unit was damaged after 1236h; the second unit was used after 1127h and the same fault occurred. The secondary ring gear 7, planetary gear 12, planet carriers 11 and 13, and the double-row radial spherical roller bearings 28 of the planetary reducer are severely worn and cannot be used any longer (see FIG. 1). Figure 1 reducer structure diagram 1. Gear shaft