BS ISO 1122-1-1998 Vocabulary of gear terms Definitions related to geometry《齿轮术语词汇 几何学的相关定义》.pdf

1、NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW corrigendum November1999 andJune2009 IncorporatingNational foreword This British Standard is the UK implementation of ISO 1122-1:1998, incorporating corrigend

2、a November 1999 and June 2009. The UK participation in its preparation was entrusted to Technical Committee MCE/5, Gears. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a

3、contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. BS ISO 1122-1:1998 This British Standard, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the

4、Standards Board and comes into effect on 15 October 1998 BSI 2010 ISBN 978 0 580 70678 3 Amendments/corrigenda issued since publication Date Comments 28 February 2010 Implementation of ISO corrigendum November 1999. Replacement of NOTES 1 and 2 in 2.1.8.6 31 October 2010 Implementation of ISO corrig

5、endum June 2009. Replacement of figure under 1.4.1.13NOTES 1 For external gears, the profile shift is positive if the datum line of the basic rack is shifted away from the axis of the gear. For internal gears, the profile shift is positive if the datum line of the basic rack is shifted towards the a

6、xis of the gear. Consequently, the nominal tooth thickness increases in both cases. 2 For internal gears, tooth profiles are considered as being those of the tooth spaces.1 Pour les roues denture extrieure, le dport est positif si la ligne de rfrence du trac de rfrence est dporte loin de laxe de la

7、roue. Pour les roues denture intrieure, le dport est positif si la ligne de rfrence du trac de rfrence est dporte vers laxe de la roue. Par consquent, lpaisseur nominale augmente dans les deux cas. 2 Pour les roues denture intrieure, les profils considrs sont ceux de lentredent. 1 For external gears

8、, the profile shift is positive if the datum line of the basic rack is shifted away from the axis of the gear. For internal gears, the profile shift is positive if the datum line of the basic rack is shifted towards the axis of the gear. Consequently, the nominal tooth thickness increases in both ca

9、ses. 2 For internal gears, tooth profiles are considered as being those of the tooth spaces.This page deliberately left blankThis page deliberately left blankBSI Group Headquarters 389 Chiswick High Road, London, W4 4AL, UK Tel +44 (0)20 8996 9001 Fax +44 (0)20 8996 7001 standards BSI - British Sta

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