1、DEUTSCHE NORMEN February 1973 UDC 621.851 : 621.852.13 Driving Elements I Grooved Ailleys for V-belts Dimensions Material I 2217 Sheet 1 I Intriebselemente; Keilriemenacheiben, MaBe, Uerketo For connection with IS0 Recommendations ISO/R national Organisation for Standardisation (ISO?, see Explanatlo
2、ne. Thin Standard deals with grooved pulleys for V-belts for use in industrial purposes. Grooved pulleys for V-belts according to thie Standard are for us8 with V-belts according to DIN 2215.1 and DIB 2216 (see Table I ). 2-1957 and ISO/R 253-1962 issued by the Inter- Dimensons in mm The illustratio
3、ns are diagrammatic only and are not intended to indicate details of design; only the dimensions epeciiied are to be observed. V, W Surfaces Series 2 DIN 3141 ar according to DIN 748 Sheet 1 0 / . / refer- IL2 OBCO edge Lr according to DIN 748 Sheet 1 Bi. *es ingle-groove multi-groove Mgea rounded O
4、ther diienrions ail for ingle-groove rim type two-piece (2T) Podtion OS hub relative to rim: flush back jecting set- pro- Other dimensions aad details as for (1P) ans-piece Designation of a grooved pulley for V-belt with profile 32, o e-piece (IT) dw - 560 mm, number of grooves c - 5 and hub bore d2
5、 - 105 IU?) with pardel keywar (nP) according to DIN 6885 Sheet 1: pitch diameter Fuller 32 - IT 560 x 5 x IO5 PEI DIB 2217 *) At prelient atill circulating ali draft 1 The denired nominal dimenaion for d2 is to be stated in the elramplo of designation. Continued on pagee 2 to 9 Explanations on page
6、 10 Isinverkouf der Normblfier durch Beuth Verlag GmbH, Berlin 30 und Kln DIN 2217 B1. 1 engl. Preiegr. Page 2 DIB 2217 Sheet I Table I. endloea V-belta act. to DIN 2295.1 acc. to DIN 2216 6+01 7+oh p+y open-ended V-belt. O O 87 I I I I bracketed proflem are not to be wed for nev deaigne. *) At prem
7、eat mtll circuhtlag ne draft. 2, The pitch width 4, im that width of a V-belt vhich remains unchui(led whoa the V-belt ia bent perpcndicu- lar to tho bue of ita profil. (width of the neutral layor) thin width ia wed aa the reforonce quantity for mtaedardisFa( the profile of tho pulley groore aed of
8、the aaBOCi8ted V-belt. 3) Calculated OIL the bamim of deciaionm by DO/“: 41: c e - 1.35 by, f L. 0.9 by, t 4, The pemiwible VULitiOn on grOOTe dfmtuico of non-coamocutiro groorei is twice that mtated value for e. ror prommod atoel pulleya .ad their couter-pulleys, and in epecial CMOS, o my be up to
9、3 rn larger. 5) Tho pitch dimmetor V im the diamoter umoclated with the pitch width by; it in the ruling diaaeter for calculating the trannbaion ratio. 6, No hub dimenmiona mpecfied. 7) ror preaaed .toel pulleys and their counter-pulleya, and in apecial caaes, the value8 for b2 may differ from thoae
10、 (liVbn in Table 1. 8) To be uamured by dial indicator vith the grooved puller for V-belt mountod via its bore: Toler.nce on ooncmntricitr at the outmide diameter Toleraeco on face -out it the height of the pitch diueter. 0.3 this means that on both sides they are either “flush“ or “set-back“ or “pr
11、o- jecting“ (see Illustration). !laie!ai GG-20 according to DIN 1691. Other materials subject to agreement. Tolerance zone: H7 for one-piece grooved pulleys for V-belts J7 for two-piece grooved pulleys for V-belts spoke and solid pulleys) spoke pulleye) Other tolerance zones subject to agreement. Pe
12、rmissible variations for dimensions without tolerance indication on machined surfaces: medium DIN 7168 for hub length 1: + IT 14 according to DIN 7151 Keyway: p1Q parallel keyway according to DIN 6885 Sheet I, deep pattern in the case of 2T grooved pulleys for Y-belts the parallel keyway is offset 9
13、0 6 from the parting line. ) PN with set screw subject to special agreement. the taper keyway is arranged on the parting line.) Position of the lowest point of the hub keyway subject to agreement. Balancing: Grooved pulleys for V-belts ready for use, with finished bore and keyway - but with- ?3 tape
14、r keyway according to DIN 6886 (in the case of 2T grooved pulleye for V-belts out parallel key or taper key - are balanced on a plain balancing mandrel according to VDI 2060: Normally: In a single plane, quality grade Q 16 two planes, quality grade Q 6.3 when: diameter to the rim width , : b2 c 4 wh
15、en II 20 m/s References to further standards For driving elements, grooved pulleys for V-belts, testing of grooves, see DIN 2217 Sheet 2 For endless V-belts, dimensions, see DIN 2215 (at present still circulating as draft) For open-ended V-belts, dimensions, see DIN 2216 For driving elements, groove
16、d pulleys for narrow V-belts, dinienaione, material, see DIN 2211 Sheet I For driving elements, grooved pulleye for narrow V-belts, testing of grooves, see DIN 2211 Sheet 2 For driving elements, grooved pulleys for narrow V-belts, selection and correlation for elec- trical machines, see DIN 2211 She
17、et I Extract Sheet (at present still circulating as draft) For endless narrow Y-belts for industrial purposes, dimensions, see DIN 7753 Sheet 1 For endlees narrow V-belts for automotive transmission drives, dimensions, see DIN 7753 Sheet 3 For cylindrical shaft ends, dimensions, nominal transmissibl
18、e torques, see DIN 748 Sheet I For cylindrical shaft ends for electrical machines, see DIN 42946 Page IO DIN 2217 Sheet I Emlanatione For connection wth IS0 Recomendationa: R 52 (Aug. 1957) Grooved pulleya for V-belta, groove sections A, E. C, D, E Poulies gorges pour courroie6 trapotoidalei, sectio
19、ns de gorge6 A, B, C, D, E IL 253 (March 1962) Orooved pulleys for V-belts, groove seetiom X arid 2 Poulie6 gorges pour courroie8 trapesoidales, sections de gorges Y et Z The dineneions bu, C, e, I, t, agree with the IS0 Recommendations for profiles D, E opd X. Compared with ISO, recent measurements
20、 made by the V-belt manufacturers have resulted in different value8 being etated for tho pitch dinmetera in tho correlation of pitch diametera dl to groove anglea. The previous profiles 8, 20 and 25 have bee& retained, but should not continue to be used for new designs. In the cam of profilas 5, 6 a
21、nd 8 the groove depth t agrees wth endlesa Y-belt6 according to DIN 2215 (at present still circulating as draft) and open-ended V-belts accordin8 to DIN 2216. Bub lengths have been included for the first time in line with DIN 2211. To promote ratonnlizntion of V-belt drives, the grooved pulleys for
22、V-belts with profiles 10, 13, 17 and 22 have been deleted. These grooved pulleys for V-belts are superseded by the correspondhg grooved pul- by6 SPZ, 8Ph, SPB and SPC according to DIN 2211 Bheet l. Tho mnimum and maximum dimeasions of the pitch diameter6 have been calculated from the noinal dimensions by appljiag the allowances +ia6 $.
