我公司自行设计试制了一台轨道式轻型塔式起重机(图1)。该机在提升、变幅、行走、回转等方面均采用了行星摆线针轮减速装置,并利用施工现场建筑构件材料代替金属作压重、配重,使这台起重机体积小、重量轻、结构简单紧凑。它可在一般轻轨上直线行走, Our company has designed and manufactured a rail-mounted lightweight tower crane on its own (Figure 1). The aircraft adopts planetary cycloid deceleration devices in lifting, luffing, walking and turning, and uses construction site components instead of metal as the weight and weight, making the crane small and lightweight. The structure is simple and compact. It can walk straight on the general light rail.