BS 463-2-1970 Specification for sockets for wire ropes - Metric units《钢丝绳锁环规范 米制单位》.pdf

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1、BRITISH STANDARD BS 463-2:1970 Specification for Sockets for wire ropes Part 2: Metric units UDC 621.86.05:669.14 427.4BS463-2:1970 This British Standard, having been approved by the MechanicalEngineering IndustryStandards Committee,was published underthe authorityof the Executive Boardon 31August19

2、70 BSI 02-2000 BS 463 first published October 1932 First revision February 1943 Second revision November 1946 Third revision March 1958 Part 2 metric units, first publishedAugust 1970 The following BSI references relate to the work on this standard: Committee reference MEE/18 Draft for comment 67/29

3、629 ISBN 0 580 06362 3 Co-operating organizations The Mechanical Engineering Industry Standards Committee, under whose supervision this British Standard was prepared, consists of representatives from the following Government departments and scientific and industrial organizations: The Government dep

4、artments and scientific and industrial organizations marked with an asterisk in the above list, together with the following, were directly represented on the committee entrusted with the preparation of this British Standard: Associated Offices Technical Committee* Engineering Equipment Users Associa

5、tion Association of Consulting Engineers Gas Council Association of Mining Electrical and Institution of Civil Engineers Mechanical Engineers Institution of Gas Engineers Board of Trade* Institution of Heating and Ventilating British Chemical Plant Manufacturers Engineers Association Institution of

6、Mechanical Engineers* British Compressed Air Society Institution of Mechanical Engineers British Electrical and Allied Manufacturers (Automobile Division) Association Institution of Production Engineers British Gear Manufacturers Association Locomotive and Allied Manufacturers British Internal Combu

7、stion Engine Association of Great Britain Manufacturers Association London Transport Executive British Mechanical Engineering Machine Tool Trades Association Confederation* Ministry of Defence, Army Department British Pump Manufacturers Association Ministry of Public Building and Works British Steel

8、 Industry* Ministry of Technology* Crown Agents for Oversea Governments and Ministry of Technology National Administrations Engineering Laboratory Department of Employment and Productivity Ministry of Transport (H.M. Factory Inspectorate)* National Coal Board* Electricity Council, the Central Electr

9、icity National Physical Laboratory (Ministry of Generating Board and the Area Boards in Technology)* England and Wales* Royal Institute of British Architects Association of Crane Makers Institution of Mining Engineers Bureau Veritas Lifting Equipment Manufacturers Association Federation of Wire Rope

10、 Manufacturers of Lloyds Register of Shipping Great Britain Ministry of Defence, Navy Department Honourable Company of Master Mariners Individual companies Institution of Mining and Metallurgy Amendments issued since publication Amd. No. Date CommentsBS463-2:1970 BSI 02-2000 i Contents Page Co-opera

11、ting organizations Inside front cover Foreword ii 1 Scope 1 2 Size 1 3 Quality of material 1 4 Form and dimensions 1 5 Tolerances on dimensions 1 6 Workmanship 2 7 Heat treatment 2 8 Proof loading 2 9 Freedom from defect 2 10 Condition 3 11 Galvanizing 3 12 Inspection 3 13 Identification marking 3 1

12、4 Testing facilities 3 15 Manufacturers records of material 3 16 Manufacturers certificate 3 Appendix A Proof loading attachments 7 Appendix B Recommended method of white metal socketing 8 Appendix C Recommended method of socketing with zinc cone and tail strand units 10 Appendix D Design criteria 1

13、1 Appendix E Information to be given with an enquiry or order 12 Figure 1 Sockets for wire rope 4 Figure 2 Split cone and eyebolt for testing sockets 7 Figure 3 Solid cone and bolt for testing sockets 8 Table 1 Sockets for wire rope 5 Table 2 Details of the rope end of sockets for various rope sizes

14、 6BS463-2:1970 ii BSI 02-2000 Foreword This standard makes reference to the following British Standards: BS 219, Soft solders. BS 302, Wire ropes for cranes, excavators and general engineering purposes. BS 329, Steel wire ropes for electric lifts. BS 330, Stranded wire ropes for haulage purposes. BS

15、 365, Galvanized steel wire ropes for ships. BS 643, White metal ingots for capping steel wire ropes. BS 729, Zinc coatings on iron and steel articles Part 1: Hot-dip galvanized coatings. BS 970:1955, Wrought steels in the form of bars, billets, and forgings, up to6in. ruling section, for automobile

16、 and general engineering purposes. En series. BS 970, Wrought steels in the form of blooms, billets, bars and forgings Part 1: Carbon and carbon manganese steels 1) . BS 1574, Split cotter pins. BS 2763, Round steel wire for ropes. BS 2772, Iron and steel for colliery cage suspension gear, tub and m

17、ine car drawgear and couplings and rope sockets Part 2: Wrought steel. BS 3436, Ingot zinc. BS 4114, Dimensional and quantity tolerances for steel drop and press forgings and for upset forgings made on horizontal forging machines. BS 4190, ISO metric black hexagon bolts, screws and nuts. This Part o

18、f this British Standard, which is intended eventually to supersede BS463:1958 (now BS463, Part 1, “Imperial units”) has been prepared under the authority of the Mechanical Engineering Industry Standards Committee. It forms one of a series of specifications which deal with terminal fittings for wire

19、ropes. The sockets specified are for general engineering purposes; they are also suitablefor mine haulages. When using them on mine haulage ropes in the United Kingdom, users should take account of the appropriate statutory mining regulations. It is recognized that sockets for special applications s

20、uch as mine hoisting (winding), aerial ropeways, suspension bridges and guys for large radio masts will normally require special and individual design. The sockets are suitable for use principally with wire ropes covered by BS302 2) , BS329 3) , BS330 4)and BS365 5) . The range of socket sizes has b

21、een extended to accommodate ropes up to56mm (2: in) diameter; the basic design sizes in the range are related to the R20 preferred number series. Each basic design size provides a basic size of socket for one or more individual sizes of rope, e.g.the basic design size10mm is suitable for use with ro

22、pes of8mm,9mm and10mm diameter. The difference in the three individual sockets is the throat diameter E, and the consequential changes to the X and Y dimensions. In this Part of BS463, only open type sockets are specified. The closed type of socket has been excluded because the demand no longer warr

23、ants inclusion. (BS463, Part 1, however, which includes the closed type of socket, will remain available for a period of approximately two years.) 1) In course of preparation. 2) BS302, “Wire ropes for cranes, excavators and general engineering purposes”. 3) BS329, “Steel wire ropes for electric lif

24、ts”. 4) BS330, “Stranded wire ropes for haulage purposes”. 5) BS365, “Galvanised steel wire ropes for ships”.BS463-2:1970 BSI 02-2000 iii In this Part a complete re-design of the sockets has been effected, and advantage has been taken of the good mechanical properties and the resistance to strain ag

25、e embrittlement of the materials specified, when in the hardened and tempered condition. It should be noted that sockets should not be heated during re-socketing to a temperature which will destroy the hardened and tempered condition. It is therefore recommended that the maximum temperature to which

26、 the fittings are heated during “melting out” should be400 C. NOTESpecial consideration should be given to socketed ropes where the socket is to be worked at temperatures significantly higher than normal ambient temperature. In so far as the proof load is a basic design parameter each socket is requ

27、ired to be proof loaded, and Table 1 lists the working loads for the general case of socketed ropes working at a nominal factor of safety of5:1, expressed in the R10 preferred number series. It is recognized that these sockets may also be used in varied applications and that in certain cases the saf

28、e working load required of the wire rope assembly may be higher than that obtaining in the general case. For this reason it is important that the designer responsible for an assembly is fully aware of the design basis. (SeeAppendix D.) The socket design is such that alternative methods of socketing

29、may be used throughout the range, and suitable methods are given in Appendix B and Appendix C (and see Note below). In connection with this type of socket, it is important to note that whereas the taper of the interior of the basket of sockets to BS463, Part 1, varies in a random manner throughout t

30、he range of sizes, the total taper of the interior of the sockets in this Part is constant at1in6. The cones and tail strands for a given rope size are, therefore, not interchangeable between the two types of socket. The committee responsible for the preparation of this Part of this British Standard

31、 expresses its thanks to The Safety in Mines Research Division, Ministry of Technology, and also to the National Physical Laboratory, Ministry of Technology, for assistance in the design and testing of the sockets. Information to be given in an enquiry or order is listed inAppendix E. NOTEA novel wa

32、y has been developed for socketing a wire rope by means of a cold-curing polyester resin mixed with a filler. This method has been successfully tested in the laboratory and in limited field trials. Tests have shown that sockets in this Part of this British Standard are suitable for use with resin ca

33、ppings. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document co

34、mprises a front cover, an inside front cover, pages i to iv, pages1to 12, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.iv blankBS463-2:1970

35、BSI 02-2000 1 1 Scope This Part of this British Standard specifies materials, dimensions, workmanship, heat treatment and testing of sockets for wire ropes ofsizes8mm to56mm diameter. 2 Size The basic design sizes of the sockets are given in the first column of Table 1. Particulars of the sizes of w

36、ire ropes which may be used with the specified sockets, and details of the rope end of the sockets, are given inTable 2. 3 Quality of material The bodies and pins of sockets shall be made from bar or billet carbon steel of the type represented by080A27 6) , as given in BS970, Part 1 7) . When so spe

37、cified by the purchaser, the bodies and pins of sockets shall be made from a1.5% manganese steel as specified in BS2772, Part 2 8) . 4 Form and dimensions The form of the sockets shall be as shown in Figure 1, and the dimensions of the sockets shall be in accordance with Table 1 and Table 2. Each so

38、cket comprises a body and pin. The pin shall be one of the following types: 1) Screwed pin, with nut and split cotter pin. 2) Plain pin with split cotter pin. 5 Tolerances on dimensions 5.1 General. BS4114 9)Quality F tolerances shall be applied to drop forged dimensions. For sockets machined from t

39、he solid, the tolerances on dimensions other than E and K shall be plus5%, minus0%. 5.2 Dimension E. The following tolerances shall apply to machined dimension E: 5.3 Dimension K. The following tolerances shall apply to machined dimension K. The holes in the lugs shall provide an easy fit for the pi

40、ns, but in no case shall the tolerances exceed the values given below: 6) Replacing steel En5A of BS970:1955, “Wrought steels in the form of bars, billets and forgings, up to6in ruling section, for automobile and general engineering purposes. En series”. 7) BS970, “Wrought steels in the form of bloo

41、ms, billets, bars and forgings”, Part 1, “Carbon and carbon manganese steels”. (Incourse of preparation). 8) BS2772, “Iron and steel for colliery cage suspension gear, tub and mine car drawgear and couplings and rope sockets”, Part2, “Wrought steel”. 9) BS4114, “Dimensional and quantity tolerances f

42、or steel drop and press forgings and for upset forgings made on horizontal forging machines”. Dimension E Tolerance Suggested seizing wire size + mm mm mm Up to and including 25 mm 0.25 0 1.0 (19 SWG) Over 25 mm, up to and including 36 mm 0.4 0 1.6 (16 SWG) Over 36 mm 0.5 0 2.0 (14 SWG) NOTEThe dime

43、nsion E has been based on the use of the above sizes of seizing wire. Dimension K Tolerance Pin hole tolerance + + mm mm mm mm Less than 40 mm 0.1 0.3 0.2 0.4 40 mm up to and including 60 mm 0.1 0.4 0.2 0.5 Over 60 mm 0.1 0.5 0.2 0.6BS463-2:1970 2 BSI 02-2000 5.4 Tolerances on basket angle. The tole

44、rances on the internal and external socket basket anglesshallbe: When the socket is galvanized, the above tolerances on machined dimensions shall apply after this process has been carried out. 6 Workmanship 6.1 Bodies. Bodies shall be drop-forged or machined from the solid. Welding is prohibited. Dr

45、op-forged bodies shall be neatly and cleanly made and finished. All flashes or fins produced in manufacture shall be dressed in accordance with BS4114 10) , Quality F, residual flash and trimmed flat tolerances. For bodies machined from the solid, machine gas cutting may be used to assist in rough s

46、haping. An adequate excess of material shall be left after gas cutting for the removal of surface defects by machining or, in the case of the edge of the lugs and the continued edges around the top of the basket, by grinding. The taper of the interior of the basket shall be uniform and may be rough

47、turned. The smaller end of the basket shall terminate in a short parallel length and the orifice shall be provided with a radius. The pin holes shall be drilled or otherwise machined from the solid at one operation and one setting. The axis of the holes shall be at right angles to the axis of the ba

48、sket of the socket. 6.2 Pins. Pins may be plain or screwed according to the purchasers requirements. The pins shall be forged and machined, or machined from the bar. Plain pins shall be drilled with a cross hole for the split cotter pin. Screwed pins shall be machined with an undercut to allow the n

49、ut to jam on the shoulder of the pin and not on the outside face of the socket and in no case shall dimension M be less than dimension J. The nut and pin shall be drilled with a cross hole for the split cotter pin. Split cotter pins shall conform to BS1574 11) . Nuts for screwed pins shall conform to BS4190 12) , except that the thickness shall be reduced to dimensionO. 7 Heat treatment Sockets and pins shall after forging or gas cutting, but before final machining, be subjected to the following heat treatment: Carbon steel. Harden in oil or