摘要:对传统的颚式破碎机的啮角设计概念进行了分析，发现其有很大的局限性，认为它没有真实地反映颚式破碎机的工作状况，并针对单肘板颚式破碎机的运动特性提出了嗨角设计的新概念——工态啮角。工态啮角的概念纠正了传统的单肘板颚式破碎机嘈角设计的错误.正确地解释了影响单肘板颚式破碎机工作的各种因素。作者以工态噌角为设计思想，设计了肘板下置式高效、低磨损曲线破碎腔的单肘板颚式破碎机，取得了非常好的效果。与原用颚式破碎机相比较，处理能力提高20～50%,颚板寿命延长1倍以上。
Abstract：In this paper, the authors, after analyzing the nip angle concept now used in a jaw crusher design,have discovered that it is right only in a limited range and it does not really reflect the working conditions of a jaw crusher.To describe the single-toggle jaw crusher working character,authors propose a new concept:working nip angle.It redresses the error in the design of single-toggle jaw crusher nip angle and rightly explains various factors affecting the jaw crusher.operation.With the working nip angle concept, authors have designed a singl-toggle jaw crusher with a high efficiency,low abrasive crushing chamber and a structure of the toggle set down,with very good test results. As compared with original jaw crusher,the throughout of this new one increases by 20-50%and its jaw plate has a twice longer service life.
Key words:Single-toggle Jaw Crusher,Working Nip Angle,Crushing Chamber
