DIN EN 1677-2-2008 Components for slings - Safety - Part 2 Forged steel lifting hooks with latch Grade 8(includes Amendment A1 2008) English version of DIN EN 1.pdf

1、 b! “ “ # $%$ Documentcomprises18pagesDIN EN 1677-2:2008-06 2 Start of validity This standard is valid from 01 June 2008. National foreword This standard has been prepared by CEN/TC 168 “Chains, ropes, webbing, slings and accessories Safety” (Secretariat: BSI, United Kingdom). The responsible German

2、 body involved in its preparation was the Normenausschuss Rundstahlketten (Round Steel Link Chains Standards Committee), Technical Committee 3 Anschlagketten und Zubehr. For further information, please refer to www.nrk.din.de. This standard includes Amendment A1:2008 to European Standard EN 1677-2:2

3、000 and concretizes the basic requirements set out in Annex I of the EU Machinery Directive (Directive 98/37/EC) (valid until 28 December 2009) and the new EU Machinery Directive 2006/42/EC which becomes applicable on 29 December 2009 relating to machines to be placed on the EEA market, with the int

4、ent of simplifying the means of proving conformity with such requirements. Once this standard is designated a harmonized standard in the Official Journal of the European Union, a manufacturer applying this standard may assume compliance with the requirements of the Machinery Directive (the so-called

5、 “presumption of conformity”). This standard includes safety requirements in clause 5. This European Standard is part of a series of standards relating to safety for components for slings. The series includes the following parts: Part 1: Forged steel components Grade 8 Part 2: Forged steel lifting h

6、ooks with latch Grade 8 Part 3: Forged steel self-locking hooks Grade 8 Part 4: Links Grade 8 Part 5: Forged steel lifting hooks with latch Grade 4 Part 6: Links Grade 4 Amendments This standard differs from DIN EN 1677-2:2000-11 as follows: a) A new Annex ZA (informative) “Relationship between this

7、 European Standard and the Essential Requirements of EU Directive 98/37/EC” has been added. b) Annex ZB (informative) “Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC” has been included. Previous editions DIN EN 1677-2: 2000-11 EUROPEAN STANDARD

8、NORME EUROPENNE EUROPISCHE NORM EN 1677-2:2000+A1 April 2008 ICS 53.020.30 Supersedes EN 1677-2:2000 English Version Components for slings - Safety - Part 2: Forged steel lifting hooks with latch, Grade 8 Accessoires pour lingues - Scurit - Partie 2: Crochets de levage en acier forg linguet, Classe

9、8 Einzelteile fr Anschlagmittel - Sicherheit - Teil 2: Geschmiedete Haken mit Sicherungsklappe, Gteklasse 8 This European Standard was approved by CEN on 21 May 2000 and includes Amendment 1 approved by CEN on 21 February 2008. CEN members are bound to comply with the CEN/CENELEC Internal Regulation

10、s which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member. This Europ

11、ean Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions. CEN members are the nat

12、ional standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and

13、 United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1677-

14、2:2000+A1:2008: EEN 1677-2:2000+A1:2008 (E) 2 Contents Page Foreword3 Introduction .4 1 Scope 4 2 Normative references 4 3 Terms and definitions .5 4 Hazards .5 5 Safety requirements 6 5.1 Design .6 5.2 Dimensions.6 5.3 Materials and heat treatment9 5.4 Manufacturing methods and workmanship 9 5.5 Me

15、chanical properties.9 5.6 Hook latches.10 6 Verification of safety requirements11 6.1 Qualification of personnel 11 6.2 Type tests .11 6.3 Manufacturing test regime and acceptance criteria.11 6.4 Hook latches.11 7 Marking .12 8 Manufacturers certificate .12 9 Instructions for use .12 Annex A (inform

16、ative) Bases for the calculation of hook dimensions 13 Annex B (informative) Designation system for hooks - Grade 814 B.1 Designation 14 B.2 General format .14 Annex ZA (informative) !Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC 15 Annex ZB (inf

17、ormative) !Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC 16 DINEN16772:200806EN 1677-2:2000+A1:2008 (E) 3 Foreword This document (EN 1677-2:2000+A1:2008) has been prepared by Technical Committee CEN/TC 168 “Chains, ropes, webbing, slings and ac

18、cessories - Safety”, the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2008, and conflicting national standards shall be withdrawn at the latest by O

19、ctober 2008. This document includes Amendment 1, approved by CEN on 2008-02-21. This document supersedes EN 1677-2:2000. The start and finish of text introduced or altered by amendment is indicated in the text by tags ! “. This document has been prepared under a mandate given to CEN by the European

20、Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annexes ZA and ZB, which are integral parts of this document. The other Parts of EN 1677 for components for slings are: Part 1: Forged st

21、eel components - Grade 8 Part 3: Forged steel self-locking hooks - Grade 8 Part 4: Links - Grade 8 Part 5: Forged steel lifting hooks with latch - Grade 4 Part 6: Links - Grade 4 Annexes A and B of this European Standard are informative. According to the CEN/CENELEC Internal Regulations, the nationa

22、l standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Pol

23、and, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. DINEN16772:200806EN 1677-2:2000+A1:2008 (E) 4 Introduction This European Standard has been prepared to be a harmonized standard providing one means of complying with the essential safety requirements of the Ma

24、chinery Directive and associated EFTA regulations. The hooks covered by this Part of EN 1677 are normally supplied to be part of a sling, but they may also be used for other applications. In such instances it is important that the hook design is checked to ensure its fitness for the intended use. Th

25、e extent to which hazards are covered is indicated in the scope. In addition, lifting equipment shall conform as appropriate to EN 292 for hazards that are not covered by this standard. 1 Scope This Part of EN 1677 specifies requirements for forged steel lifting hooks with latch of grade 8 having ey

26、e or clevis and pin up to 63 t WLL, mainly for use in: chain slings according to EN 818-4 steel wire rope slings according to prEN 13414-1:1999 textile slings according to prEN 1492-1:2000, prEN 1492-2:2000 intended for lifting objects, materials or goods. This Part of EN 1677 does not apply to hand

27、 forged hooks. The hazards covered by this Part of EN 1677 are identified in clause 4. Annex A is informative, and gives the bases for calculation of hook dimensions. Annex B is informative, and gives an example of a designation system for hooks of grade 8. !Annexes ZA and ZB give“ the relationship

28、with EU-Directives. 2 Normative references This European Standard incorporates, by dated or undated reference, provisions from other publications. These normative references are cited at appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendm

29、ents to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 292-1, Safety of machinery - Basic concepts - General principles for design -

30、Part 1: Basic terminology, methodology EN 292-2:1991/A1:1995, Safety of machinery - Basic concepts - General principles for design - Part 2: Technical principles and specifications (Amendment 1: 1995) EN 818-4, Short-link chain for lifting purposes Safety - Part 4: Chain slings Grade 8 DINEN16772:20

31、0806EN 1677-2:2000+A1:2008 (E) 5 EN 818-6:2000, Short link chain for lifting purposes - Safety - Part 6: Chain slings - Specification for information for use and maintenance to be provided by the manufacturer EN 1050:1996, Safety of machinery - Principles of risk assessment !EN 1677-1:2000+A1:2008“,

32、 Components for slings Safety - Part 1: Forged steel components - Grade 8 EN 1492-1:2000, Textile slings Safety - Part 1: Flat woven webbing slings made of man-made fibres EN 1492-2:2000, Textile slings Safety - Part 2: Round slings made of man-made fibres prEN 13414-1:1999, Steel wire rope slings S

33、afety - Part 1: Wire rope slings 3 Terms and definitions For the purpose of this Part of EN 1677, the definitions given in !EN 1677-1:2000+A1:2008“ apply. 4 Hazards Accidental release of a load, or release of a load due to failure of a hook, puts at risk, either directly or indirectly, the safety or

34、 health of those persons within the danger zone. In order to provide the necessary strength and durability of hooks, this Part of EN 1677 gives requirements for the design, manufacture and testing to ensure the specified levels of performance are met. Since failure can be caused by the incorrect cho

35、ice of grade and specification of hook, this Part of EN 1677 also gives requirements for marking and the manufacturers certificate. Errors in fitting can also lead to failure and this Part of EN 1677 contains dimensional requirements to allow correct fit. Risk of injury due to sharp edges, sharp ang

36、les or rough surfaces when handling is also covered by this standard. Those aspects of safe use associated with good practice are given in EN 818-6:2000. Table 1 contains those hazards which require action to reduce risk identified by risk assessment as being specific and significant for forged stee

37、l lifting hooks with latch, Grade 8. DINEN16772:200806EN 1677-2:2000+A1:2008 (E) 6 Table 1 Hazards and associated requirements Hazards identified Relevant clause Relevant in annex A of of annex A of clause/subclause of EN 1050: 1996 EN 292-2: 1991/ A1: 1995 this Part of EN 1677 1 Mechanical 1.3.2 5

38、Hazard due to 4.1.2.3 5 Inadequacy of 4.1.2.5 5 Strength 4.2.4 5 1.7.3 7 1.7.4 9 1.3 Cutting hazard 1.3.4 5.4 1.8 Friction or abrasion hazard 1.3.4 5.4 15 Errors of fitting 1.5.4 5.2 Hazard 9 17 Falling objects 1.3.3 5.6 5 Safety requirements 5.1 Design The articulation and relative movement shall b

39、e in accordance with 5.1 of !EN 1677-1:2000+A1:2008“. NOTE The form of the hook is not specified in detail. For example, a minimum value of dimension F (see figure 1) as measured in any direction is specified so that the eye of the hook can accommodate a pin, but the eye of the hook need not be circ

40、ular. The form of the upper end shall be either of the eye type or the clevis type as designated in table 2 and figure 1. Each hook shall have a spring loaded latch conforming to 5.6 to ensure that the load cannot become accidentally unhooked. Table 2 Forms of hooks Form Description Principal use E

41、Eye type Chain slings, wire rope slings and textile slings C Clevis type Mechanically assembled chain slings 5.2 Dimensions The principal dimensions of the hooks shall conform to table 3, in which the hook dimensions are related to the working load limit. DINEN16772:200806EN 1677-2:2000+A1:2008 (E)

42、7 NOTE 1 With an eye type hook, connecting devices may be required between the hook and the rest of the sling. NOTE 2 For direct use in wire ropeslings and textile slings, dimension F should be larger than the minimum value given in table 3. In addition, the following requirements shall be met: a) t

43、he actual point height B shall be equal to or greater than the full throat opening O (see figure 1); b) the full throat opening O shall not exceed 95 % of the actual seat diameter D; c) the hook latch shall be capable of closing over the maximum diameter of bar A, as indicated in figure 1, that can

44、be admitted through the actual throat opening O 1 . DINEN16772:200806EN 1677-2:2000+A1:2008 (E) 8 1 Clevis type 2 Eye type 3 Maximum diameter of bar Figure 1 Dimensions of hooks DINEN16772:200806EN 1677-2:2000+A1:2008 (E) 9 Table 3 Dimensions of hooks (see figure 1) Code Working D min. O min. O 1min

45、. F min. H max. L max. Number load limit (WLL) t mm mm mm mm mm mm 3 0,25 11 8 8 6 12 8 4 0,5 15 11 11 8 17 11 5 0,8 19 14 14 10 21 14 6 1,12 22 17 16 12 25 17 7 1,5 26 20 18 14 29 20 8 2 30 23 21 16 34 23 9 2,5 34 26 24 18 38 26 10 3,15 38 29 27 20 43 29 11 4 42 32 30 23 48 32 13 5,3 49 37 35 26 55

46、 37 14 6 52 40 37 28 59 40 16 8 60 46 43 32 68 46 18 10 67 51 48 36 76 51 19 11,2 71 54 51 38 80 54 20 12,5 75 57 53 40 85 57 22 15 82 63 58 44 93 63 23 16 85 65 60 46 96 65 25 20 95 72 68 51 107 72 26 21,2 98 75 70 52 111 75 28 25 106 81 76 57 120 81 32 31,5 119 91 85 64 135 91 36 40 134 102 96 72

47、152 102 40 50 150 115 107 81 170 115 45 63 168 129 120 90 190 129 5.3 Materials and heat treatment Materials and heat treatment shall be in accordance with 5.2 of !EN 1677-1:2000+A1:2008“. 5.4 Manufacturing methods and workmanship Manufacturing methods and workmanship shall in accordance with 5.3 of

48、 !EN 1677-1:2000+A1:2008“. 5.5 Mechanical properties The mechanical properties shall conform to 5.4 of !EN 1677-1:2000+A1:2008“. DINEN16772:200806EN 1677-2:2000+A1:2008 (E) 10 5.6 Hook latches The latch shall engage in the point of the hook to form a complete closure of mating surfaces. With the hoo

49、k in any orientation the spring shall ensure that the latch is held positively in the closed position. Latches operated solely by gravity shall not be used. NOTE The force required to fully open the latch should not exceed that which can be applied manually. Table 4 contains guidance on the minimum initial torque and maximum torque du