目前在游梁式抽油机的减速器中均采用齿轮传动。由于齿轮传动对轴的挠曲、中心距误差和齿形误差相当敏感,以致对抽油机减速器齿轮的精度要求很高,而使制造成本大为增加。同时,这种齿轮式减速器的寿命也较低,一般3～5年就需要进行大修。本文通过理论分析与详细的设计计算,探讨了在抽油机上用链条减速器来代替齿轮减速器的可能性与现实性并对经济效益进行了估计。 Currently in the beam pumping unit reducer gear are used. Due to the gear drive on the shaft deflection, the center distance error and tooth-shaped error is quite sensitive, resulting in pumping gear reducer gear accuracy is very high, resulting in greatly increased manufacturing costs. At the same time, this gear reducer life is also low, usually 3 to 5 years on the need for overhaul. In this paper, through the theoretical analysis and detailed design calculation, the possibility and reality of replacing the gear reducer with a chain reducer on the pumping unit are discussed and the economic benefits are estimated.