DIN 868-1976 General Definitions and Specification Factors for Gears Gear Pairs and Gear Trains《齿轮 齿轮副和齿轮系的一般定义和规范参数》.pdf
《DIN 868-1976 General Definitions and Specification Factors for Gears Gear Pairs and Gear Trains《齿轮 齿轮副和齿轮系的一般定义和规范参数》.pdf》由会员分享,可在线阅读,更多相关《DIN 868-1976 General Definitions and Specification Factors for Gears Gear Pairs and Gear Trains《齿轮 齿轮副和齿轮系的一般定义和规范参数》.pdf(20页珍藏版)》请在麦多课文档分享上搜索。
1、UDC 621.833 : 001.4 DEUTSCHE NORMEN December 1976 General Definitions and Specification Factors for Gears, Gear Pairs and Gear Trains - DIN 868 Allgemeine Begriffe und Bestimmungsgrssen fr Zahnrder, Zahnradpaare und Zahnradgetriebe Il C c D .- - m O 3 f g ?.z - : H L 3 $ c .- D 8 c c .- E Q 2 - 5 3
2、O a r p .z m 2 g -? c ._ o -= c O .jt 50 8; gg a?- CD .= - BE 2; 3 al mal This Standard contains the general definitions and symbols for gears, gear pairs and gear trains as well as the definitions of their parameters. The content of this Standard has been brought into line with the recommendation I
3、SO/R 1122 - 1969 issued by the International Organization for Standardization (ISO) ; for this purpose the Swiss Standard VSM 15 522 - 1974 has also been used as a source, so that extensive agreement with international standardization has been achieved. The quantities contained in ISO/R 1122 - 1969
4、have been supplemented in this Standard by further terms and parameters which have appeared important in connection with gear tooth geometry. The symbols used agree with DIN 3999. Specific terms relating to particular gear tooth systems are dealt with in separate Standards. $1 :2 2.1 2.2 2.3 2.3.1 2
5、.3.2 2.3.3 2.3.4 2.3.5 2.4 2.5 2.6 2.7 2.8 2.8.1 2.8.2 2.9 2.9.1 2.9.2 63 3.1 3.1.1 3.1.2 3.1.3 3.1.4 3.2 3.2.1 3.2.2 3.2.3 Contents Page Symbols and designations. 3 3.2.4 General terms relating to a gear . 3 3.3 Tooth 3 3.4 Gear . 3 3.5 Gear tooth system . 3 3.5.1 Tooth 1, tooth 2 etc., tooth k 3 3
6、.5.2 Tooth spaces . 3 3.5.3 Pitch p; right pitch, left pitch; designation . . 3.5.4 Angularpitchr . 4 3.5.5 Modulem . 4 3.6 Numberof teeth z . 4 3.7 Gearaxis 4 3.7.1 Datum surface, reference surface 4 3.7.2 Plane tooth system . 4 3.7.3 Axial boundary . 4 3.7.4 End surfaces of the gear tooth system.
7、4 3.8 Position of the gear tooth system relative to the gear body . 5 External gear teeth, external gear 5 Internal gear teeth, internal gear 5 4 Facewidth b . 4 3.8.1 3.8.2 3.8.3 3.8.4 3.8.5 General terms concerning gear pairs 5 3-85 Gearpair 5 3.8.7 Gear and mating gear. . 5 3-9 Pinion (small gear
8、) and wheel (large gear) . . 5 3*9*1 Driving and driven gear 5 3.9.2 Gear train . 5 Geartransmission 5 4 Singlestage gear transmission 5 4.1 Multi-stage gear transmission . 5 4.2 Fixed-axis gear transmission . 5 4.3 Page Epicyclic or planetary gear transmission (gear train) 5 External gear pair 6 In
9、ternal gear pair 6 Gear axes of a gear pair 6 Axial plane 6 Crossing line, crossing points 6 Mid-planes., . 6 Centre distance a (offset) . 6 . Shaft angle E . 7 Gearratiou 7 Transmission ratio i. 7 True-angle ratio 7 True-torque ratio 7 Speed-reducing ratio 7 Speed-increasing ratio . 7 Engagement. .
10、 7 Point of contact . 7 Contact line. . 7 Plane of action 7 Zone of action 7 Path of contact . 7 Length of path of contact 7 Meshing interference 7 Types of tooth system . 8 Individual tooth system 8 Paired tooth system; X-zero tooth system . . 8 . Kinematic terms . 8 Instantaneous axis . 8 Function
11、al surfaces . 8 Rolling type gear transmissions . 8 Continued on pages 2 to 20 I Sole sale rights of German Standards (DIN-Normen) are with Beuth Verlag GmbH, Berlin 30 and Kln 1 DIN 868 engl. Preisgr. I Vertr.-Nr. O1 11 03.81 DIN 868 Page 2 4.3.1 4.3.2 4.3.3 4.3.4 4.4 4.4.1 4.4.2 4.4.3 4.4.4 4.4.4.
12、1 Page Rolling axis 8 Plane gear transmissions. spherical gear trans- missions 8 Pitch point C 8 Pitch surface; pitch cylinder. pitch cone . 8 Helical rolling type gear transmissions . 8 Helix axis . 9 Helix point S . 9 Helical pitch surfaces 9 Parameters at the helix point S . 9 Relative angular ve
13、locity wE1 9 4.4.4.2 Velocity of sliding ugs . 9 4.4.4.3 Reduced lead (parameter) p, of the helical motion 10 4.4.5 Working point W 10 4.4.6 Parameters at the working point W . 10 4.4.6.1 Relative angular velocity wE1 10 4.4.6.2 Velocity of sliding u, . 10 4.5 5 5.1 5.1.1 5.1.2 5.1.3 5.1.4 5.1.5 5.2
14、 5.2.1 5.2.2 5.2.3 5.2.4 5.3 6 6.1 6.2 6.3 6.4 7 7.1 I Pure helical type gear transmissions 11 Types of gears and gear pairs . 11 Gears and gear pairs for rolling type gear transmissions . 11 Rack; rack and pinion pair 11 Bevel gear; bevel gear pqir . 11 Plane bevel gear; plane bevel gear pair . 11
15、Contrate gear pair; crown wheel Il Gears and gear pairs for helical rolling type gear transmissions 11 Cylindrical worm gear set (worm gear set); cylindrical worm (worm). wormwheel 11 Hyperboloid gear pair . 12 Crossed helical gear pair (cylindrical crossed helical gear pair); crossed helical gears
16、(cy1 indrical crossed helical gears). crossed helical worm gear 12 Hypoid gear pair (helical bevel gear pair); hypoid gears (helical bevel gears) 12 Double enveloping worm gear set; double enveloping worm. double enveloping worm- wheel 12 Crest and root surfaces I 3 Crest 13 Tip surface 13 Bottom of
17、 tooth space . 13 Root surface . 13 Tooth flanks and tooth profiles . 13 Tooth flanks . 13 Cylindrical gear; cylindrical gear pair . 11 7.2 7.3 7.3.1 7.3.2 7.3.3 7.4 7.5 7.5.1 7.5.2 7.5.3 7.5.4 7.5.5 7.5.6 7.6 7.6.1 7.6.2 7.6.3 7.6.4 7.6.5 7.7 7.7.1 7.7.2 7.7.3 7.7.4 7.7.5 7.7.6 7.8 7.8.1 7.8.2 7.8.
18、3 7.8.4 8 8.1 8.2 8.2.1 8.2.2 8.2.3 8.2.4 8.3 Page Datum tooth trace. tooth trace. reference tooth trace . 13 Gear tooth profile. tooth profile. flank profile 13 Transverse profile; transverse section . 13 Normal profile; normal section . 13 Axial profile; axial section 13 Standard basic rack tooth
19、profile 13 Types of tooth flank 13 Mating flanks . 13 Right flank. left flank . 13 Corresponding flanks 13 Opposite flanks . 13 Working flanks 13 Non-working flanks . 13 Partsof flanks 13 Addendum flank. dedendum flank . 13 Usable flank; usable tip circle. usable root circle 14 Active flank 14 Fille
20、t surface. root radiusing . 14 Tooth tip . 14 Tooth flank modifications Tip relief Ca. root relief C, . vertical crowning C, 14 Longitudinal crowning C, (tooth trace relief) . 14 End relief . 14 Tooth tip chamfer . 14 Grinding relief 15 Cutter interference . 15 Flank profiles of cylindrical gears .
21、15 I nvolute gear teeth . 15 (flank corrections) . 14 Cycloidal gear teeth 15 Point tooth system. cylindrical lantern tooth system . 16 Circular arc gear teeth . 17 Backlash and clearance between mating tooth systems 17 Bottom clearance c . 17 Backlash j . 17 Circumferential backlash jt 17 Normal ba
22、cklashj, . 17 Radial backlash j, 17 Axial backlash i, 17 Entry clearance je 17 Alphabetical index 19 DIN868 Page3 1 Symbols and designations The following symbols and designations are used in this Standard: Centre distance Facew idth Width of crowning Bottom clearance Datum surface diameter Effectiv
23、e diameter Transmission ratio Backlash Entry clearance Normal back I ash Radial backlash Circumferential backlash Axial play Number of teeth or pitch number Module Speed (rotational frequency) Pitch Lead Datum surface radius Gear ratio Velocity of sliding Number of teeth Pitch point End relief Tip r
24、elief Tooth trace relief Root relief Prof i le modif cat ion Helix point Working point Helix angle reference cone half angle Angular pitch Angular velocity Shaft angle The above symbols may be supplemented by the follow- ing subscripts or auxiliary symbols: a b for the driven gear f m for a mean val
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
本资源只提供5页预览,全部文档请下载后查看!喜欢就下载吧,查找使用更方便
10000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- DIN8681976GENERALDEFINITIONSANDSPECIFICATIONFACTORSFORGEARSGEARPAIRSANDGEARTRAINS 齿轮 一般 定义 规范 参数 PDF

链接地址:http://www.mydoc123.com/p-662012.html