在建筑行业所用的吊装起重设备中,为了满足作业空间的需要,一般装有回转机构。在回转机构中的减速器,目前常用的有蜗杆传动减速器和摆线针轮减速器,这两种传动各有其优缺点。以蜗杆传动来说,其优点是传动比大、结构紧凑、传动平稳、噪音小。但是,它的缺点是摩擦损耗大而效率低、齿面易胶合、易磨损。以致影响使用寿 Hoisting equipment used in the construction industry, in order to meet the needs of the operating space, usually equipped with slewing gear. In the slewing gear reducer, the current commonly used worm gear reducer and cycloid reducer, the two have their own advantages and disadvantages of transmission. The worm drive, the advantage is that the transmission ratio, compact structure, smooth transmission, low noise. However, it has the disadvantage of high friction loss and low efficiency, easy to glue on the tooth surface and easy to wear. So affect the service life