ISO/TS 6336-4:2019 圆柱正齿轮和斜齿轮的微点蚀承载能力计算 第4部分：齿侧断裂载荷容量计算

标准编号：ISO/TS 6336-4:2019

中文名称：圆柱正齿轮和斜齿轮的微点蚀承载能力计算 第4部分：齿侧断裂载荷容量计算

英文名称：Calculation of load capacity of spur and helical gears — Part 4: Calculation of tooth flank fracture load capacity

发布日期：2019-01

标准范围

This document describes a procedure for the calculation of the tooth flank fracture load capacity of cylindrical spur and helical gears with external teeth. 
It is not intended to be used as a rating method in the design and certification process of a gearbox.
The formulae specified are applicable for driving as well as for driven cylindrical gears while the tooth profiles are in accordance with the basic rack specified in ISO 53. They can also be used for teeth conjugate to other racks where the actual transverse contact ratio is less than ε_α = 2,5. The procedure was validated for case carburized gears and the formulae of this document are only applicable to case carburized gears with specifications inside the following limits:
— Hertzian stress: 500 N/mm²  ≤ pH ≤ 3 000 N/mm² ;
— Normal radius of relative curvature: 5 mm ≤ ρ_red≤ 150 mm;
— Case hardening depth at 550 HV in finished condition: 0,3 mm ≤ CHD ≤ 4,5 mm.
This document is not applicable for the assessment of types of gear tooth damage other than tooth flank fracture.

标准预览图