电梯专用双列角接触球轴承单元功能组合设计

Combined-Performance Design of Double Row Angular Contact Ball Bearing Units Specialized in Elevator

针对新型无机房电梯曳引系统轮系尺寸大幅减小,传统设计理念难以满足负荷能力问题,进行反绳轮(及导向轮)支承轴承与传输带轮功能组合设计,满足无机房电梯有限限位空间下承载能力和可靠性要求,实现电梯曳引传输系统带轮传递作用与轴承减摩作用有机结合。

In terms of the issue that classical design concept hardly satisfied the load capacity when dimensions of hoist system reduced on new types of non-machine room elevator,combined-performance of support pulley and mast pulley is designed to satisfy the load capacity and reliability requirement in limited space of non-machine room elevator, in order to realize the optimized combination of pulley transmission performance of elevator hoist system and the performance of friction reduction of bearings.