DIN 405-1-1997 通用圆螺纹.pdf

ICS 21 040 30 Rundgewinde allgemeiner Anwendung Teil 1 Gewindeprofile Nennma e In keeping with current practice in standards published by the International Organization for Standardization ISO a comma has been used throughout as the decimal marker Ref No DIN 405 1 1997 11 English price group 07Sales No 0107 12 98 DEUTSCHE NORMNovember 1997 405 1 Continued on pages 2 to 6 No part of this translation may be reproduced without the prior permission of DIN Deutsches Institut f r Normung e V Berlin Beuth Verlag GmbH D 10772 Berlin has the exclusive right of sale for German Standards DIN Normen Translation by DIN Sprachendienst In case of doubt the German language original should be consulted as the authoritative text General purpose knuckle threads Part 1 Profiles and nominal sizes Foreword This standard has been prepared by the Normenausschu Technische Grundlagen Fundamentals in Tech nology Standards Committee Technical Committee Grundlagen Amendments The following amendments have been made to the January 1983 edition a The basic profile is no longer specified b Some symbols have been changed c Values for ac have been introduced d The standard has been editorially revised Previous editions DIN 405 1922 04 1928 04 1953x 01 DIN 405 1 1975 11 Dimensions in mm 1Scope and field of application This standard specifies profiles and dimensions of general purpose internal and external knuckle threads See DIN 405 2 for fundamental deviations and tolerances and DIN 405 3 for gauges for external and internal threads This standard together with DIN 405 2 November 1997 edition supersedes the November 1975 edition of DIN 405 1 丝锥丝攻及攻丝知识 h t t p w w w s i z h u i w h y c o m Page 2 DIN 405 1 1997 11 2Normative references This standard incorporates by dated or undated reference provisions from other publications These norma tive references are cited at the appropriate places in the text and titles of the publications are listed below For dated references subsequent amendments to or revisions of any of these publications apply to this standard only when incorporated in it by amendment or revision For undated references the latest edition of the publication referred to applies DIN 405 2General purpose knuckle threads Tolerances DIN 405 3General purpose knuckle threads Gauges for external and internal threads Types profiles and tolerances DIN 2244Screw threads Terminology 3Concepts and symbols 3 1Concepts For the purposes of this standard the concepts defined in DIN 2244 shall apply 3 2Symbols See table 1 Table 1 Symbols SymbolQuantity acCrest clearance dMajor diameter of external thread d2Pitch diameter of external thread d3Minor diameter of external thread D1Minor diameter of internal thread D2Pitch diameter of internal thread D4Major diameter of internal thread esFundamental deviation of external thread upper deviation PLead of single start thread and pitch of multi start thread PhLead of multi start thread HHeight of fundamental triangle h3 H4Height of threads H1Flank overlapping R1Crest radius or root radius of external thread R2Crest radius of internal thread R3Root radius of internal thread nNumber of threads 4Design profiles External and internal knuckle threads as specified in this standard do not have the same design profile External threads have the same radii at the crest and at the root while internal threads have different radii The major pitch and minor diameters are based on the design profile 丝锥丝攻及攻丝知识 h t t p w w w s i z h u i w h y c o m Page 3 DIN 405 1 1997 11 Figure 1 Design profiles for external and internal threads with crest clearance but without fundamental deviation notation Table 2 Design profiles PNumber Symbol of threads acHh3 H4H1R1R2R3 per 25 4 mm 1 102 54100 1274 7397041 270 212103 0 6058080 6501560 561459 1 83 17580 158755 9246291 58750 265128 0 757260 8126950 701824 1 64 23360 2116677 8988842 11650 353477 1 00961 0835080 935692 1 46 3540 317511 8492593 1750 530257 1 5145191 625391 403648 5Design profiles for threads with fundamental deviation Design profiles for threads with fundamental deviation are shown in figure 2 Nominal size Nominal size Figure 2 Profiles for external and internal threads with fundamental deviation es and crest clearance notation ac 0 05 P D1 D4 2H4 D4 P d 0 9 P D4 d 2ac d 0 1 P d2 D2 d 0 5 P d3 d P H 1 866025 P H 2 0 933 P H1 0 0835 P h3 H4 0 5 P R1 0 238507 P R2 0 255967 P R3 0 221047 P 丝锥丝攻及攻丝知识 h t t p w w w s i z h u i w h y c o m Page 4 DIN 405 1 1997 11 Figure 3 Flank overlapping notation 6Profiles for multi start threads Multi start threads have the same profile as single start threads if the pitch of the former is equal to the lead of the latter The pitch P of multi start threads shall be selected from the values specified in table 3 for the lead of single start threads The lead Ph of multi start threads shall be determined by multiplying the pitch by the number of threads i e Ph P n whereby Ph does not have to be equal to one of the values given for P in table 3 Figure 4 Profile for double start threads 7Designation Knuckle threads as specified in this standard are to be designated as specified in DIN 405 2 8Nominal sizes Nominal sizes are specified in table 3 Series 1 diameters should be given preference 丝锥丝攻及攻丝知识 h t t p w w w s i z h u i w h y c o m Page 5 DIN 405 1 1997 11 Table 3 Nominal sizes Nominal thread diameter Number ofLeadPitchMajorMinor diameters dthreads or pitch diameter diameter Series 1Series 2per 25 4 mmPd2 D2D4d3D1 8102 546 738 2545 465 714 9102 547 739 2546 466 714 10102 548 7310 2547 467 714 11102 549 7311 2548 468 714 12102 5410 7312 2549 469 714 1483 17512 41214 31810 82511 142 1683 17514 41216 31812 82513 142 1883 17516 41218 31814 82515 142 2083 17518 41220 31816 82517 142 2283 17520 41222 31818 82519 142 2483 17522 41224 31820 82521 142 2683 17524 41226 31822 82523 142 2883 17526 41228 31824 82525 142 3083 17528 41230 31826 82527 142 3283 17530 41232 31828 82529 142 3483 17532 41234 31830 82531 142 3683 17534 41236 31832 82533 142 3883 17536 41238 31834 82535 142 4064 23337 88340 42335 76736 19 4264 23339 88342 42337 76738 19 4464 23341 88344 42339 76740 19 4664 23343 88346 42341 76742 19 4864 23345 88348 42343 76744 19 5064 23347 88350 42345 76746 19 5264 23349 88352 42347 76748 19 5564 23352 88355 42350 76751 19 5864 23355 88358 42353 76754 19 6064 23357 88360 42355 76756 19 6264 23359 88362 42357 76758 19 6564 23362 88365 42360 76761 19 6864 23365 88368 42363 76764 19 7064 23367 88370 42365 76766 19 7264 23369 88372 42367 76768 19 7564 23372 88375 42370 76771 19 7864 23375 88378 42373 76774 19 8064 23377 88380 42375 76776 19 8264 23379 88382 42377 76778 19 8564 23382 88385 42380 76781 19 8864 23385 88388 42383 76784 19 9064 23387 88390 42385 76786 19 9264 23389 88392 42387 76788 19 9564 23392 88395 42390 76791 19 9864 23395 88398 42393 76794 19 10064 23397 883100 42395 76796 19 10546 35101 825105 63598 6599 285 11046 35106 825110 635103 65104 285 11546 35111 825115 635108 65109 285 12046 35116 825120 635113 65114 285 12546 35121 825125 635118 65119 285 13046 35126 825130 635123 65124 285 135