1、BRITISH STANDARD BS EN 1677-3:2001Components for slings Safety Part 3: Forged steel self-locking hooks Grade 8ICS 53.020.30N O C O P Y I N G W I T H O U T B S I P E R M I S S I O N E X C E P T A S P E R M I T T E D B Y C O P Y R I G H T L A W+A1:2008BS EN 1677-3:2001This British Standard, having bee
2、n prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 06 November 2001 BSI 2009ISBN 978 0 580 602696National forewordThe UK participation in its preparation was entrusted to Technica
3、l Committee MHE/1, Chains and fittings. Amendments issued since publication+A1 200: 8This British Standard is the UK implementation of EN 1677-3:2001+A1:2008. It supersedes BS EN 1677-3:2001.The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indica
4、ting changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated by .a bA list of organizations represented on this committee can be obtained on request to its secretary.Compliance with a British Standard cannot confer immunity from legal obl
5、igations. Date Comments 31 May 2009 Implementation of CEN amendment A1:2008A British Standard does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1677-3:2001+A1 April 2008 ICS 5
6、3.020.30 Supersedes EN 1677-3:2001 English Version Components for slings - Safety - Part 3: Forged steel self-locking hooks - Grade 8 Accessoires pour lingues - Scurit - Partie 3: Crochets autobloquants en acier forg - Classe 8 Einzelteile fr Anschlagmittel - Sicherheit - Teil 3: Geschmiedete, selbs
7、tverriegelnde Haken - Gteklasse 8 This European Standard was approved by CEN on 11 August 2001 and includes Amendment 1 approved by CEN on 21 February 2008. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the
8、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 European Standard exists in three official versions (English, French, German
9、). 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 national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Rep
10、ublic, 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 United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN D
11、E 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 1677-3:2001+A1:2008: EEN 1677-3:2001+A1:2008 (E) 2 Contents Page Foreword3 I
12、ntroduction .4 1 Scope 4 2 Normative references 4 3 Terms and definitions .5 4 Significant Hazards5 5 Safety requirements 6 5.1 Design .6 5.2 Dimensions.6 5.3 Materials and heat treatment8 5.4 Manufacturing methods and workmanship 8 5.5 Mechanical properties.9 6 Verification of safety requirements9
13、6.1 Qualification of personnel 9 6.2 Type tests .9 6.3 Manufacturing test regime and acceptance criteria.11 7 Marking .12 8 Manufacturers certificate .12 9 Information for use 12 Annex A (informative) Bases for the calculation of hook dimensions 13 Annex B (informative) Designation system for self-l
14、ocking hooks - grade 8 .14 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 (informative) !Relationship between this European Standard and the Essential Requirements of EU
15、 Directive 2006/42/EC 16 Bibliography 17 BS EN 1677-3:2001+A1:2008EN 1677-3:2001+A1:2008 (E) 3 Foreword This document (EN 1677-3:2001+A1:2008) has been prepared by Technical Committee CEN/TC 168 “Chains, ropes, webbing, slings and accessories - Safety”, the secretariat of which is held by BSI. This
16、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 October 2008. This document includes Amendment 1, approved by CEN on
17、 2008-02-21. This document supersedes EN 1677-3:2001. 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 Commission and the European Free Trade Association, and supports es
18、sential requirements of EC Directive(s). For the relationship with EC Directives, see informative Annexes ZA and ZB, which are integral parts of this document. This European Standard is a part of a products standard related to safety for components for slings. The other Parts of EN 1677 for componen
19、ts for slings are: Part 1: Forged steel components - Grade 8 Part 2: Forged steel lifting hooks with latch - 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
20、/CENELEC Internal Regulations, the national 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, L
21、uxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. BS EN 1677-3:2001+A1:2008EN 1677-3:2001+A1:2008 (E) 4 Introduction This European Standard has been prepared to be a harmonized standard providing one means of complyin
22、g with the essential safety requirements of the Machinery 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 chec
23、ked to ensure its fitness for the intended use. The 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 European Standard specifies requirements for forged
24、 steel self-locking lifting hooks of Grade 8 having eye or clevis and pin up to 21,2 t working load limit (WLL), mainly for use in: chain slings according to EN 818-4 steel wire rope slings according to prEN 13414-1 textile slings according to EN 1492-1, EN 1492-2 intended for lifting objects, mater
25、ials or goods. The hazards covered by this part of EN 1677 are identified in clause 4. Annex A gives the bases for calculation of hook dimensions. Annex B gives an example of a designation systems for hooks of Grade 8. 2 Normative references This European Standard incorporates by dated or undated re
26、ference provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorpo
27、rated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 292-2:1991/A1:1995, Safety of machinery - Basic concepts, general principles for design - Part 2: Technical principles and specifications (Amendment 1:199
28、5) EN 818-4, Short link chain for lifting purposes - Safety - Part 4: Chain slings - Grade 8 EN 818-6, 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 -
29、Principles for risk assessment EN 1492-1, Textile slings - Safety - Part 1: Flat woven webbing slings, made of man-made fibres, for general purpose use BS EN 1677-3:2001+A1:2008EN 1677-3:2001+A1:2008 (E) 5 EN 1492-2, Textile slings - Safety - Part 2: Roundslings, made of man-made fibres, for general
30、 purpose use !EN 1677-1:2000+A1:2008“, Components for slings - Safety - Part 1: Forged steel components, Grade 8 prEN 13414-1, Steel wire rope slings - Safety - Part 1: Wire rope slings 3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in !EN 1677-1+
31、A1:2008“ apply, together with the following. 3.1 self-locking hook hook containing a locking mechanism, capable of being activated by the action of the load which, once correctly closed and locked, can only be opened in the unloaded condition by de-activation of the locking mechanism 4 Significant H
32、azards 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 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
33、the design, manufacture and testing to ensure the specified levels of performance are met. Since failure can be caused by the incorrect choice of grade and specification of hook, this Part of EN 1677 also gives requirements for marking and the manufacturers certificate. Errors of fitting can also le
34、ad to failure and this Part of EN 1677 contains dimensional requirements to allow correct fit. Risk of injury due to sharp edges, sharp angles 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. Table 1 cont
35、ains those hazards which require action to reduce risk identified by risk assessment as being specific and significant for forged steel self-locking hooks of grade 8. Table 1 Significant hazards and associated requirements Hazards identified in accordance with annex A of EN 1050:1996 Relevant clause
36、 of annex A of EN 292-2: 1991/A1:1995 Relevant clause / subclause of this Part of EN 1677 1.e Mechanical hazard 1.3.2 5 due to inadequacy of 4.1.2.3 5 strength 4.1.2.5 54.2.4 5 1.7.3 71.3 Cutting hazard 1.3.4 5.4 1.8 Friction or abrasion 1.3.4 5.4 15 Errors of fitting hazard 1.5.4 5.2 BS EN 1677-3:2
37、001+A1:2008EN 1677-3:2001+A1:2008 (E) 6 5 Safety requirements 5.1 Design The articulation and relative movement shall be in accordance with 5.1 of !EN 1677-1:2000+A1:2008“. NOTE 1 The form of the hook is not specified in detail. For example, a minimum value of dimension F (see Figure 1) as measured
38、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 circular. The form of the upper end shall be either of the eye type or the clevis type as designated in Table 2. A closed hook in the finished condition shall be able to withstand a b
39、end test in accordance with 6.2.2 (see Figure 2). The latch shall be able to withstand a force f1, of 3000 N or equivalent to 20 % of the working load limit of the hook, whichever is the greater, when applied equidistant between the point of the hook and the centre of rotation of the latch (see Figu
40、re 3). The latch, when the hook is correctly closed and locked, shall be able to withstand a force f2, applied laterally to f1, as close as practicable to the tip of the latch, of 3000 N or equivalent to 10 % of the working load limit, whichever is the greater. The locking mechanism shall be activat
41、ed by the application of the load and shall be replaceable. The hook shall be able to withstand an impact to the eye or clevis of the latch, without opening, when tested in accordance with 6.2.4. The forces transmitted between the lock and the latch shall not be such that an impact on the latch caus
42、es a moment in the direction of rotation that opens the lock. The surface hardness of the lock shall be greater than that of the latch. NOTE 2 The hook should be easy to handle and operate. NOTE 3 The locking mechanism should be protected against ingress and entrapment of dust or other solids. 5.2 D
43、imensions The principal dimensions of the hook shall conform to Table 3, in which the hook dimensions are related to the working load limit. NOTE 1 With an eye type hook, connecting devices can be required. NOTE 2 For direct use in wire rope slings and/or textile slings, dimension F should be larger
44、 than the minimum value given in Table 3. In addition, the following requirements shall be met: a) the actual throat opening O is the smaller of O1and O2b) the actual point height B shall be at least 65 % of the actual throat opening O (see Figure 1); c) the actual throat opening O (see Figure 1) sh
45、all not exceed 95 % of the actual seat diameter D; d) in the case of hooks having a clevis, the dimensions of the load pin and the slot on the clevis shall ensure articulation between pin and the chain; e) the hook shall be able to close over the maximum diameter of bar A, as indicated in Figure 1,
46、that can be admitted through the actual throat opening O; BS EN 1677-3:2001+A1:2008EN 1677-3:2001+A1:2008 (E) 7 f) the maximum values for H and L given in Table 3 shall not apply in the region of the locking mechanism. Table 2 Forms of hooks Form Description Principal use E Eye type Chain slings, wi
47、re rope slings and textile slings C Clevis type Mechanicallyassembled chain slings Key 1 Eye type 2 Clevis type 3 Load bearing pivot pin 4 Example of locking mechanism 5 Latch 6 Maximum diameter of bar Figure 1 Dimensions of self-locking hooks BS EN 1677-3:2001+A1:2008 EN 1677-3:2001+A1:2008 (E) 8 T
48、able 3 Dimensions of hooks (see Figure 1) Code Working D O F H L Number load limit min. min. min. max max. (WLL) mm mm mm mm mm t 6 1,12 22 17 12 25 17 7 1,5 26 20 14 29 20 8 2 30 23 16 34 23 9 2,5 34 26 18 38 26 10 3,15 38 29 20 43 29 11 4 42 32 23 48 32 13 5,3 49 37 26 55 37 14 6 52 40 28 59 40 16
49、 8 60 46 32 68 46 18 10 67 51 36 76 51 19 11,2 71 54 38 80 54 20 12,5 75 57 40 85 57 22 15 82 63 44 93 63 23 16 85 65 46 96 65 25 20 95 72 51 107 72 26 21,2 98 75 52 111 75 5.3 Materials and heat treatment The materials and heat treatment of all load bearing parts of self-locking hooks, including pins, shall be in accordance with 5.2 of !EN 1677-1:2000+A1:2008“. 5.4 Manufacturing methods and workmanship 5.4.1 General Manufacturing methods and workmanship shall be in accordance with 5.3 of !EN 1677-1:2000+A1:2008“. 5.4.2 Hook tip clearance For hook
