摘要
本文对现行的主要国际标准及国家标准中有关链轮方面的某些规定提出异议、商榷,旨在完善和提高标准的质量。所研讨的主要内容有: 1.传功用链轮的Seating Curve具有特别重要的作用,它有别于其他用途的链轮。 2.论证了Seating Curve与压力角及最小齿数间的关系。从而证明了在ISO1275中规定的最少齿数为5是不妥的,因为那将导致压力角可能出现负值,而这是不容许的。 3.对最大齿廓形状与最小齿廓形状指出完整的概念。 4.对于链轮齿高的准确理解。 5.关于有关公差的准确要求问题。
This paper discusses about and raises some objections to some defini- tions of chainwheel details in the national and international standards concerning chainwheel with a wiew to bring them to a better quality. The main points are as follows: 1. The seating curve of drive chainwheel is different from chainwheels used for other purposes. It has its own special functions. 2. The paper discuses the relationship between the seating curve, pressure angle and minimum number of teeth, and thus proves that it is inproper to stupulate that the minimum number of sprocket teeth in ISO 1275 is 5, as it may result in a negative pressure angle, which is not permitted. 3. It gives complete definitions of the maximum flank form and the mini- mum flank form. 4. It defines the tooth height. 5. It discusses about the problem of allowance requirements.
出处
《江南大学学报（自然科学版）》
CAS
1992年第4期17-24,共8页
Joural of Jiangnan University (Natural Science Edition)
关键词
传动链轮
齿根圆角
压力角
齿形
drive chainwheel
seating curve
pocket radius
pressure angle
minimum tooth gap form
maximum tooth gap from
tooth height.
