在铁道车辆上,为保证各种机器设备正常工作,普遍使用润滑剂。但相比于其他许多转向架零部件,润滑剂的寿命短,必须定期更换。这其中,因需要减轻牵引电动机的维修量,出于延长轴承润滑寿命的目的,在部分情况下进行了中途补脂,但仍有待解决的一些问题。最近有报告介绍了一种新型补脂机构(见图1),它能使已老化的润滑脂远离轴承,给轴承附近部位供给未老化润滑脂(新脂)。利用该方法解决了以下难题:必须削减早期的润滑脂填充 In railway vehicles, in order to ensure the normal operation of various machinery and equipment, the widespread use of lubricants. But compared to many other bogie components, lubricants have short lifetimes and must be replaced on a regular basis. Among them, there is still some problems to be solved in some cases because of the need to reduce the amount of maintenance of the traction motor and to extend the bearing lubrication life. A recent report describes a new type of grease remover (see Figure 1) that keeps the aged grease away from the bearings and provides unaged grease (fresh grease) to the area near the bearings. This method solves the following problems: The early grease filling must be cut