ISO 6336-1-2019 正齿轮和斜齿轮承载能力的计算--第1部分:基本原理、绪论和一般影响因素 Calculation of load capacity of spur and helical gears -- Part 1: Basic principles, introduction and general influence factors
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- 标准大小:
- 标准编号:ISO 6336-1-2019
- 标准状态:现行
- 更新时间:2023-12-13
- 下载次数:次
This document presents the basic principles of, an introduction to, and the general influence factors
for the calculation of the load capacity of spur and helical gears. Together with the other documents
in the ISO 6336 series, it provides a method by which different gear designs can be compared. It is
not intended to assure the performance of assembled drive gear systems. It is not intended for use by
the general engineering public. Instead, it is intended for use by the experienced gear designer who
is capable of selecting reasonable values for the factors in these formulae based on the knowledge of
similar designs and the awareness of the effects of the items discussed.
The formulae in the ISO 6336 series are intended to establish a uniformly acceptable method for
calculating the load capacity of cylindrical gears with straight or helical involute teeth.
The ISO 6336 series includes procedures based on testing and theoretical studies as referenced by each
method. The methods are validated for:
— normal working pressure angle from 15° to 25°;
— reference helix angle up to 30°;
— transverse contact ratio from 1,0 to 2,5.
If this scope is exceeded, the calculated results will need to be confirmed by experience.
The formulae in the ISO 6336 series are not applicable when any of the following conditions exist:
— gears with transverse contact ratios less than 1,0;
— interference between tooth tips and root fillets;
— teeth are pointed;
— backlash is zero.
The rating formulae in the ISO 6336 series are not applicable to other types of gear tooth deterioration
such as plastic deformation, case crushing and wear, and are not applicable under vibratory conditions
where there can be an unpredictable profile breakdown. The ISO 6336 series does not apply to teeth
finished by forging or sintering. It is not applicable to gears which have a poor contact pattern.
The influence factors presented in these methods form a method to predict the risk of damage that
aligns with industry and experimental experience. It is possible that they are not entirely scientifically
exact. Therefore, the calculation methods from one part of the ISO 6336 series is not applicable in
another part of the ISO 6336 series unless specifically referenced.
The procedures in the ISO 6336 series provide rating formulae for the calculation of load capacity with regard to different failure modes such as pitting, tooth root breakage, tooth flank fracture, scuffing and micropitting. At pitch line velocities below 1 m/s the gear load capacity is often limited by abrasive wear (see other literature such as References [23] and [22] for further information on such calculation).rd edition
2019-11
Calculation of load capacity of spur
and helical gears —
Part 1:
Basic principles, introduction and
general influence factors
Calcul de la capacité de charge des engrenages cylindriques à
dentures droite et hélico?dale —
Partie 1: Principes de base, introduction et facteurs généraux
d'influence
Reference number
ISO 6336-1:2019(E)
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ISO 2019
ISO 6336-1:2019(E)
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