BS ISO 7365-2012 Shipbuilding and marine structures Deck machinery Towing winches for deep sea use《造船与海上结构 甲板机械 深海用拖曳绞车》.pdf

《BS ISO 7365-2012 Shipbuilding and marine structures Deck machinery Towing winches for deep sea use《造船与海上结构 甲板机械 深海用拖曳绞车》.pdf》由会员分享，可在线阅读，更多相关《BS ISO 7365-2012 Shipbuilding and marine structures Deck machinery Towing winches for deep sea use《造船与海上结构 甲板机械 深海用拖曳绞车》.pdf（18页珍藏版）》请在麦多课文档分享上搜索。

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 7365:2012Shipbuilding and marinestructures Deck machinery Towing winches for deepsea useBS ISO 7365:2012 BRITISH STANDARDNational forewordThis British Standard is the UK i

2、mplementation of ISO 7365:2012. The UK participation in its preparation was entrusted to TechnicalCommittee SME/32/-/4, Ships and marine technology - Outfitting and deck machinery.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does

3、not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2012. Published by BSI Standards Limited 2012ISBN 978 0 580 72824 2 ICS 47.020.50 Compliance with a British Standard cannot confer immunity from leg

4、al obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2012.Amendments issued since publicationDate Text affectedBS ISO 7365:2012 ISO 2012Shipbuilding and marine structures Deck machinery Towing winches for deep sea useCon

5、struction navale et structures maritimes Auxiliaires de pont Treuils de remorque pour haute merINTERNATIONAL STANDARDISO 7365Second edition 2012-07-01Reference numberISO 7365:2012(E)BS ISO 7365:2012ISO 7365:2012(E)ii ISO 2012 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2012All rights reserve

6、d. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester

7、.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 7365:2012ISO 7365:2012(E) ISO 2012 All rights reserved iiiContents PageForeword iv1 Scope 12 Normative references . 13 Terms and defin

8、itions . 13.1 General terms . 13.2 Types of winches (see Figure 1) 14 Design and operation . 44.1 Material stresses . 44.2 Basic calculation . 44.3 Load alarm device . 44.4 Brakes . 44.5 Drum design . 54.6 Auxiliary equipment 64.7 Speed control . 64.8 Emergency release . 65 Performance specification

9、s 75.1 Load requirements 75.2 Speeds 76 Acceptance tests . 76.1 Drum brake holding test 76.2 Operation under load . 76.3 Control system utility test . 86.4 Emergency release test . 87 Designation system 87.1 Designation of product models . 87.2 Nameplate 8BS ISO 7365:2012ISO 7365:2012(E)ForewordISO

10、(the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical comm

11、ittee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrote

12、chnical standardization.International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member

13、 bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying

14、any or all such patent rights.ISO 7365 was prepared by Technical Committee ISO/TC 8, Ships and marine technology, Subcommittee SC 4, Outfitting and deck machinery.This second edition cancels and replaces the first edition (ISO 7365:1983), which has been technically revised.iv ISO 2012 All rights res

15、ervedBS ISO 7365:2012INTERNATIONAL STANDARD ISO 7365:2012(E)Shipbuilding and marine structures Deck machinery Towing winches for deep sea use1 ScopeThis International Standard specifies requirements for the design, operation, performance and acceptance tests of towing winches having electric, hydrau

16、lic, diesel or steam drive.It is applicable to towing winches for deep sea use.It does not consider fibre rope winches but does not exclude their use.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the editio

17、n cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 2408, Steel wire ropes for general purposes Minimum requirementsISO 3828, Shipbuilding and marine structures Deck machinery Vocabulary and symbolsISO 6482, Shipbuilding Deck

18、machinery Warping end profiles3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 3828 and the following apply.3.1 General terms3.1.1nominal speedmaximum speed of hauling and rendering ropes maintained by winches under drum load3.1.2rendering loadmaximum

19、rope tension at the drum exit when the drum just starts to rotate in the opposite direction to the applied driving torque, the prime mover being set for limited torque, with a first layer of the rope wound on the drum3.2 Types of winches (see Figure 1)3.2.1right-hand winchwinch where the reduction g

20、ear or drive of the drum(s) is on the right-hand side of the drum(s), in relation to an observer situated on the side of the motor, power supply or local controller3.2.2left-hand winchwinch where the reduction gear or drive of the drum(s) is on the left-hand side of the drum, in relation to an obser

21、ver situated on the side of the motor, power supply or local controller3.2.3central winchwinch where the reduction gear or drive of the drum(s) is in the middle of the two drums ISO 2012 All rights reserved 1BS ISO 7365:2012ISO 7365:2012(E)3.2.4winch operable from both sideswinch where the reduction

22、 gear or drive of the drum(s) is on both sides of the drum3.2.5waterfall winchwinch where multiple drums are arranged from high to low3.2.6structural form of winchescode representing a winch related to the relative position of drums to power supply, drum quantity and height of drum centerNOTE 1 Stru

23、ctural form codes appear in brackets next to the subheadings in Figure 1.NOTE 2 The designation of structural form codes is shown in the diagram below.Single left-hand winch (L1) Single winch operable from both sides (B1) Single right-hand winch (R1)Double left-hand winch (L2) Double right-hand winc

24、h (R2)2 ISO 2012 All rights reservedBS ISO 7365:2012ISO 7365:2012(E)Double winch operable from both sides (B2)Double central winch (C2)Double left-hand waterfall winch (L2W)Double waterfall winch operable from both sides (B2W)Double right-hand waterfall winch (R2W)Triple left-hand waterfall winch (L

25、3W) Triple right-hand waterfall winch (R3W) ISO 2012 All rights reserved 3BS ISO 7365:2012ISO 7365:2012(E)Triple waterfall winch operable from both sides (B3W)Figure 1 Diagrams of winch types4 Design and operation4.1 Material stressesThe manufacturer of the winch shall be responsible for determining

26、 the strength requirements of the component parts of the winch to withstand all loads of the respective nominal sizes, as specified in Table 2.4.2 Basic calculation4.2.1 Stalling load of the winchThe allowable calculated stresses of any affected part of the winch, based on simple elastic theory, sha

27、ll not be greater than 0,9 times the upper yield strength (ReH), or 0,2 % of proof strength, of a non-proportional extension (RP0.2) of the material.4.2.2 Drum load of the winchThe allowable calculated stresses of any affected part of the winch, based on simple elastic theory, shall not be greater t

28、han 0,4 times the upper yield strength (ReH), or 0,2 % of proof strength, of a non-proportional extension (RP0.2) of the material.4.2.3 Holding load of the winchThe allowable calculated stresses of any affected part of the winch, based on simple elastic theory, shall not be greater than 0,9 times th

29、e upper yield strength (ReH), or 0,2 % of proof strength, of a non-proportional extension (RP0.2) of the material.4.3 Load alarm deviceProvisions shall be made to incorporate an alarm device giving an alarm signal at 50 % of wire-breaking load.4.4 Brakes4.4.1 Electric winches shall be provided with

30、an automatic braking system which operates when the controls are put in the stop or braking position, and also when there is no tension on the winch. The brake shall be capable of holding a load of 1,25 times the drum load, and of stopping the rotation of the drum from its maximum speed 4 ISO 2012 A

31、ll rights reservedBS ISO 7365:2012ISO 7365:2012(E)without suffering damage. For other types of drive, a suitable braking system shall be agreed upon between the manufacturer and purchaser. Such a system shall be capable of holding a load of 1,25 times the drum load.4.4.2 All winches shall be provide

32、d with a drum brake (towing brake) with the functions of a normal brake and emergency brake. The emergency brake shall not be less than 80 % of the breaking strength of the rope, without conventional power supply. For the holding load of a normal brake, see 5.1.1. If this brake is power operated, it

33、 shall also be capable of manual operation.4.5 Drum design4.5.1 Design basis ropeFor design purposes, the drum shall be based on an eight-strand rope manufactured from 1 770 N/mm2or 1 960 N/mm2tensile grade steel rope in accordance with Table C.10 of ISO 2408.NOTE The above requirement does not prec

34、lude the use of other types of rope in service.Unless otherwise agreed between the purchaser and manufacturer, the breaking strength of ropes is selected according to Table 1.Table 1 Relationship between rope minimum breaking strength and drum loadDrum load T Utilization coefficient KT 200 kN K = 2.

35、5T 1 000 kN K = 2T = 200 approximately 1 000 kN Linear InsertionBreaking strength of ropes Fmax = K T4.5.2 Drum diameterThe drum diameter shall not be less than 14 times the diameter of the design-basis rope (see Table 2).4.5.3 Drum capacityFor guidance, normal capacity is given in Table 2. Individu

36、al requirements may be specified by the purchaser.The rules of the competent authorities of flag states shall apply.4.5.4 Drum lengthThe drum shall be designed to accommodate at least 50 m of steel cable on the inner layer.4.5.5 Drum flange heightWhen all the rope is reeled on a drum, the flange sha

37、ll project at least 1,5 times the rope diameter above the outermost layer.4.5.6 Connection strength of rope and drumThe breaking load of the rope attachment to the drum shall be at most 15 % of the breaking strength of the rope.4.5.7 Drum clutchThe drum shall be declutchable from the drive; the powe

38、r-operated clutch shall also be declutchable manually. ISO 2012 All rights reserved 5BS ISO 7365:2012ISO 7365:2012(E)4.6 Auxiliary equipment4.6.1 Control panel and arrangementThe main control panel shall be placed in the navigation bridge with a clear view of the deck area, winch and rope guides.Con

39、trol panels for emergency stop and emergency release shall be placed locally at the winch and at the navigation bridge.Other requirements for control panels shall be agreed between the manufacturer and purchaser.4.6.2 Warping endsA winch may be specified with or without warping ends. If warping ends

40、 are fitted for manual handling of steel rope, the pull on these shall not exceed 100 kN. The profile of warping ends shall be in accordance with ISO 6482.4.6.3 Load measuring deviceWinches shall be provided with continuous load monitors, which can at any time measure the loads on the steel rope fro

41、m the drum during hoisting, rendering or braking operations, which can record instantaneous pull, and which have an overload alarm.The wheelhouse shall be provided with load displays and anti-overload devices. Whether load displays and anti-overload devices shall be located beside the winch is negot

42、iated between the manufacturer and purchaser.4.7 Speed control4.7.1 Winch speedThe speed of the winch shall be adjustable between stop and maximum within each gear step. It shall be possible to adjust the speed while the winch is working.4.7.2 Direction of motion of operating devicesThe rope shall b

43、e hauled in by a clockwise movement of a hand-wheel or crank handle, or alternatively, by movement of a hand-lever towards the operator. All operating parts shall be marked with permanent signs of the operating direction.4.7.3 Return to stop positionUnless agreed otherwise between the manufacturer a

44、nd purchaser, whatever the type of motive power, the operating device shall be designed to return to the stop position automatically when the operator releases the control.4.8 Emergency release4.8.1 The winch shall be designed to allow drum release in an emergency when hauling or rendering, or when

45、the drum brake is applied. A maximum delay of 10 s from the moment the release is actuated to the drum being disengaged is acceptable.4.8.2 Emergency means of releasing the drums shall be provided in the wheelhouse, if agreed between the manufacturer and purchaser.4.8.3 The emergency release shall b

46、e effected by the actuation of one identical control in all situations, even if the usual power sources fail. It shall always be possible to carry out the emergency release, even during a black-out.6 ISO 2012 All rights reservedBS ISO 7365:2012ISO 7365:2012(E)4.8.4 After an emergency release, the dr

47、um brakes shall again function normally at once. The winch motor shall not re-engage automatically after an emergency release.4.8.5 Control handles, buttons, etc. for emergency release shall be protected against unintentional operation.NOTE Attention is drawn to the existence in certain countries of

48、 national safety regulations affecting emergency release.5 Performance specificationsFor performance specifications of towing winches, see Table 2.NOTE Rope diameter and strength grade as well as drum capacity, as specified in Table 2, may be negotiated by the manufacturer and purchaser.5.1 Load req

49、uirementsThe winch shall be capable of exerting, hauling, holding, stalling and rendering loads according to its nominal size, as specified in Table 2.5.1.1 Holding loadThe holding load shall not be less than the breaking strength of the rope.5.1.2 Rendering loadThe rendering load shall not be more than 0,5 times the breaking strength of the rope.5.2 SpeedsSpeeds shall be in accordance with Table 2.6 Acceptance testsThe following factory tests shall be carried out before acceptance by the purchaser.NOTE 1 These tests ma