论文部分内容阅读
前言齿轮破坏最主要原因之一,是当载荷作用时,齿根圆角处产生大的拉伸应力,在峰值载荷作用下使齿轮断裂。早期的齿轮研究工作,在阐述轮齿在静荷下几何形状与圆角拉伸应力的关系方面,提出了许多设想。 1893年,Lewis应用了对称齿廓与抛物线内切梁的基本原理,提出了等强度梁的概念,即著名的轮齿弯曲强度的基本公式——Lewis公式。对于大压力角的轮齿,1938年,Merritt在Lewis公式中附加了一项载荷径向分力,假
Preface One of the most important causes of gear damage is that when the load is applied, large tensile stresses occur at the root fillet and the gear breaks under peak load. Earlier gear research work, in setting forth the tooth geometry under static load and fillet tensile stress relationship, made a number of ideas. In 1893, Lewis applied the basic principle of symmetrical tooth profile and parabolic endangered beams, and proposed the concept of isotropic beams, known as Lewis formula, the basic formula of tooth bending strength. For high pressure angle teeth, Merritt added a radial component to the Lewis formula in 1938,