SAE AS 24586B-2016 SPRING HELICAL EXTENSION FOR LOADS BELOW 30 POUNDS.pdf
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1、 AEROSPACE STANDARD SPRING, HELICAL, EXTENSION: FOR LOADS BELOW 30 POUNDS AS24586Copyright 2016 SAE International All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, record
2、ing, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org ISSUED2001-10 REAFFIRMED2006-05 REVISED2016-08 TH
3、IRD ANGLE PROJECTION CUSTODIAN: E-25 REV.B FEDERAL SUPPLY CLASS 5360 AS24586 SHEET 1 OF 10 REV. B PROCUREMENT SPECIFICATION: AS13572 SAE Technical StandardsBoardRulesprovidethat:“ThisreportispublishedbySAE toadvancethestateoftechnicalandengineering sciences. The use of thisreport isentirelyvoluntary
4、, andits applicability andsuitability for any particularuse, includingany patent infringement arising therefrom,is the soleresponsibility of theuser.”SAE reviews eachtechnical reportatleastevery fiveyears atwhichtimeitmay berevised,reaffirmed,stabilized,orcancelled. SAEinvites yourwritten comments a
5、ndsuggestions.SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/AS24586B RATIONALE TABLE 2 DASH 16 SPRING RATE R CORRECTED, TABLE 2 DASH 321 WIRE DIAMETER CORECTED. OBSOLETE MATERIAL QQ-W-423 REPLACED BY ASTM A313/A313M. NOTICE TH
6、E INITIAL SAE PUBLICATION OF THIS DOCUMENT WAS TAKEN DIRECTLY FROM U.S. MILITARY STANDARD MS24586. THIS SAE STANDARD MAY RETAIN THE SAME PART NUMBERS ESTABLISHED BY THE ORIGINAL MILITARY DOCUMENT. ANY REQUIREMENTS ASSOCIATED WITH QUALIFIED PRODUCTS LISTS (QPL) MAY CONTINUE TO BE MANDATORY FOR DOD CO
7、NTRACTS. REQUIREMENTS RELATING TO QPLS HAVE NOT BEEN ADOPTED BY THE SAE FOR THIS STANDARD AND ARE NOT PART THIS SAE DOCUMENT. FIGURE 1 - SPRING TABLE 1 - CORRECTION FACTORS FOR STRESS RANGE, LIFE CYCLES AND SPRING MATERIAL MATERIAL P2 P1P2CYCLES 5000 10 000 50 000 100 000 INFINITE MUSIC WIRE .25 1.2
8、8 1.23 1.11 1.06 .95 .50 1.23 1.16 1.00 .93 .76 .75 1.21 1.12 .93 .84 .65 1.00 1.17 1.08 .86 .77 .55 CORROSION-RESISTANT STEEL .25 .92 .90 .83 .81 .77 .50 .88 .84 .76 .72 .63 .75 .85 .80 .68 .63 .51 1.00 .83 .76 .61 .55 .41 .016 AEROSPACE STANDARDAS24586SHEET 2 OF 10REV.BSPRING, HELICAL, EXTENSION:F
9、OR LOADS BELOW 30 POUNDSNOTES:NOTICETHIS DOCUMENT REFERENCES A PART WHICH CONTAINS CADMIUM AS A PLATING MATERIAL. CONSULT LOCAL OFFICIALS IF YOUHAVE QUESTIONS CONCERNING CADMIUMS USE.1. MATERIAL: WIRE, STEEL, MUSIC, IN ACCORDANCE WITH ASTM A228. WIRE, STEEL, CORROSION-RESISTANT, IN ACCORDANCE WITH A
10、STM A313/A313M, COMPOSITION FS302 OR FS304, SPRING TEMPER.2. PROTECTIVE COATING: CADMIUM PLATING IN ACCORDANCE WITH AMS-QQ-P-416, TYPE II, CLASS 2.ZINC COATING IN ACCORDANCE WITH ASTM B633, TYPE II, FE/ZN5. PASSIVATION TREATMENT IN ACCORDANCE WITH AMS2700.3. ENDS: MACHINE FULL HOOK. END HOOKS SHALL
11、BE PARALLEL WITHIN 22 DEGREES. RELATIVE POSITION OF END HOOK OPENINGS IS OPTIONAL.4. DIRECTION OF HELIX: OPTIONAL5. TOLERANCE: OUTSIDE DIAMETER “O.D.” .120 TO .240 .005, .300 TO .500 .008, .650 TO 1.000 .015.WIRE DIAMETER “D” IN ACCORDANCE WITH MATERIAL SPECIFICATION.MAX EXTENSION “L1”10% OF (L1-L).
12、SPRING RATE “R” 10%.6. ACTIVE COILS “N”, INITIAL TENSION “T”, AND DEFLECTION PER COIL “f”, ARE FOR REFERENCE ONLY.7. MAX LOAD “P”, SHALL BE ATTAINED WITHIN THE TOLERANCE OF EXTENSION “L1”, TO DETERMINE LOAD “P”, RATE “R” OR INITIAL TENSION “T”, FOR CORROSION-RESISTANT STEEL, MULTIPLY THE VALUE GIVEN
13、 IN TABLE 2 BY .833.8. SPRING VALUES SHOWN ARE FOR MUSIC WIRE, AND ARE BASED ON A SERVICE LIFE OF 50 000 CYCLES AT .50 STRESS RANGE. FOR USE UNDER OTHER OPERATING CONDITIONS, MULTIPLY MAX EXTENSION (L1-L) BY THE FACTOR SHOWN IN TABLE 1. (SEENOTE (7).P1= LOAD AT ASSEMBLED HEIGHT AND P2= FINAL LOAD.9.
14、 TO DETERMINE LOAD “P” AT ANY EXTENSION OTHER THAN “L1”, MULTIPLY THE DISTANCE IN INCHES THAT THE SPRING WILL BE EXTENDED FROM THE FREE LENGTH “L”, BY THE SPRING RATE “R”, AND ADD THE INITIAL TENSION “T”. (SEE NOTE (7).)10. MUSIC WIRE SPRINGS ARE NOT RECOMMENDED FOR APPLICATIONS WHEREIN THE TEMPERAT
15、URE EXCEEDS 250 F. CORROSION-RESISTING STEEL SPRINGS ARE NOT RECOMMENDED FOR APPLICATIONS WHEREIN THE TEMPERATURE EXCEEDS 500 F.11. IN THE EVENT OF CONFLICTS BETWEEN THE TEXT OF THIS STANDARD AND THE REFERENCES SITED HEREIN, THE TEXT OF THIS STANDARD SHALL TAKE PRECEDENCE.12. DIMENSIONS: ALL DIMENSI
16、ONS ARE IN INCHES UNLESS OTHERWISE SPECIFIED.13. PART NUMBER: THE MS PART NUMBER CONSISTS OF THE MS NUMBER, PLUS THE DASH NUMBER. EXAMPLE: MS24586-1.14. REVISION INDICATOR: A CHANGE BAR (l) LOCATED IN THE LEFT MARGIN IS FOR THE CONVENIENCE OF THE USER IN LOCATING AREAS WHERE TECHNICAL REVISIONS, NOT
17、 EDITORIAL CHANGES, HAVE BEEN MADE TO THE PREVIOUS ISSUE OF THIS DOCUMENT. AN (R) SYMBOL TO THE LEFT OF THE DOCUMENT TITLE INDICATES A COMPLETE REVISION OF THE DOCUMENT, INCLUDING TECHNICAL REVISIONS. CHANGE BARS AND (R) ARE NOT USED IN ORIGINAL PUBLICATIONS, NOR IN DOCUMENTS THAT CONTAIN EDITORIAL
18、CHANGES ONLY.AS AND AMS ARE SAE INTERNATIONAL PUBLICATIONS.ASTM IS AN ASTM INTERNATIONAL PUBLICATION.AEROSPACE STANDARDAS24586SHEET 3 OF 10REV.BSPRING, HELICAL, EXTENSION:FOR LOADS BELOW 30 POUNDSTABLE 2 - DIMENSIONS AND CHARACTERISTICSSteelOD D L N fP2/ TL13/R2/UncoatedCadmiumPlatedZinc PlatedCorro
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