1、raising standards worldwide NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BSI Standards Publication BS ISO 7365:2012 Shipbuilding and marine structures Deck machinery Towing winches for deep sea useBS ISO 7365:2012 BRITISH STANDARD National foreword This British Standard is
2、the UK implementation of ISO 7365:2012. The UK participation in its preparation was entrusted to Technical Committee 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 public
3、ation does 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 2012 ISBN 978 0 580 72824 2 ICS 47.020.50 Compliance with a British Standard cannot confer immun
4、ity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2012. Amendments issued since publication Date Text affectedBS ISO 7365:2012 ISO 2012 Shipbuilding and marine structures Deck machinery Towing winches for
5、 deep sea use Construction navale et structures maritimes Auxiliaires de pont Treuils de remorque pour haute mer INTERNATIONAL STANDARD ISO 7365 Second edition 2012-07-01 Reference number ISO 7365:2012(E)BS ISO 7365:2012ISO 7365:2012(E) ii ISO 2012 All rights reserved COPYRIGHT PROTECTED DOCUMENT IS
6、O 2012 All rights reserved. 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
7、 country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in SwitzerlandBS ISO 7365:2012ISO 7365:2012(E) ISO 2012 All rights reserved iii Contents Page Foreword iv 1 Scope 1 2 Norma
8、tive references . 1 3 T erms and definitions . 1 3.1 General terms . 1 3.2 Types of winches (see Figure 1) 1 4 Design and operation . 4 4.1 Material stresses . 4 4.2 Basic calculation . 4 4.3 Load alarm device . 4 4.4 Brakes . 4 4.5 Drum design . 5 4.6 Auxiliary equipment 6 4.7 Speed control . 6 4.8
9、 Emergency release . 6 5 Performance specifications 7 5.1 Load requirements 7 5.2 Speeds 7 6 Acceptance tests . 7 6.1 Drum brake holding test 7 6.2 Operation under load . 7 6.3 Control system utility test . 8 6.4 Emergency release test . 8 7 Designation system 8 7.1 Designation of product models . 8
10、 7.2 Nameplate 8BS ISO 7365:2012ISO 7365:2012(E) Foreword ISO (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
11、member body interested in a subject for which a technical committee 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
12、 Electrotechnical Commission (IEC) on all matters of electrotechnical 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
13、adopted by the technical committees are circulated to the member 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
14、patent rights. ISO shall not be held responsible for identifying 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:
15、1983), which has been technically revised. iv ISO 2012 All rights reservedBS ISO 7365:2012INTERNATIONAL STANDARD ISO 7365:2012(E) Shipbuilding and marine structures Deck machinery Towing winches for deep sea use 1 Scope This International Standard specifies requirements for the design, operation, pe
16、rformance and acceptance tests of towing winches having electric, hydraulic, 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 references The following referenced documents are indispensable
17、 for the application of this document. For dated references, only the edition 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 requirements ISO 3828, Shipbuilding and marin
18、e structures Deck machinery Vocabulary and symbols ISO 6482, Shipbuilding Deck machinery Warping end profiles 3 T erms and definitio ns For the purposes of this document, the terms and definitions given in ISO 3828 and the following apply. 3.1 General terms 3.1.1 nominal speed maximum speed of hauli
19、ng and rendering ropes maintained by winches under drum load 3.1.2 rendering load maximum 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 t
20、he drum 3.2 Types of winches (see Figure 1) 3.2.1 right-hand winch winch where the reduction gear 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 controller 3.2.2 left-hand winch winch where the red
21、uction gear or drive of the drum(s) is on the left-hand side of the drum, in relation to an observer situated on the side of the motor, power supply or local controller 3.2.3 central winch winch where the reduction gear or drive of the drum(s) is in the middle of the two drums ISO 2012 All rights re
22、served 1BS ISO 7365:2012ISO 7365:2012(E) 3.2.4 winch operable from both sides winch where the reduction gear or drive of the drum(s) is on both sides of the drum 3.2.5 waterfall winch winch where multiple drums are arranged from high to low 3.2.6 structural form of winches code representing a winch
23、related to the relative position of drums to power supply, drum quantity and height of drum center NOTE 1 Structural 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 wi
24、nch operable from both sides (B1) Single right-hand winch (R1) Double left-hand winch (L2) Double right-hand winch (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 wa
25、terfall winch operable from both sides (B2W) Double right-hand waterfall winch (R2W) Triple left-hand waterfall winch (L3W) 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 o
26、f winch types 4 Design and operation 4.1 Material stresses The manufacturer of the winch shall be responsible for determining 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 calculation 4.2.1 Sta
27、lling load of the winch The allowable calculated stresses of any affected part of the winch, based on simple elastic theory, shall not be greater than 0,9 times the upper yield strength (R eH ), or 0,2 % of proof strength, of a non-proportional extension (R P0.2 ) of the material. 4.2.2 Drum load of
28、 the winch The allowable calculated stresses of any affected part of the winch, based on simple elastic theory, shall not be greater than 0,4 times the upper yield strength (R eH ), or 0,2 % of proof strength, of a non-proportional extension (R P0.2 ) of the material. 4.2.3 Holding load of the winch
29、 The allowable calculated stresses of any affected part of the winch, based on simple elastic theory, shall not be greater than 0,9 times the upper yield strength (R eH ), or 0,2 % of proof strength, of a non-proportional extension (R P0.2 ) of the material. 4.3 Load alarm device Provisions shall be
30、 made to incorporate an alarm device giving an alarm signal at 50 % of wire-breaking load. 4.4 Brakes 4.4.1 Electric winches shall be provided with 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. Th
31、e 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 All rights reservedBS ISO 7365:2012ISO 7365:2012(E) without suffering damage. For other types of drive, a suitable braking system shall be agreed upon be
32、tween 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 provided 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 br
33、eaking 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 shall also be capable of manual operation. 4.5 Drum design 4.5.1 Design basis rope For design purposes, the drum shall be based on an eight-strand ro
34、pe manufactured from 1 770 N/mm 2or 1 960 N/mm 2tensile grade steel rope in accordance with Table C.10 of ISO 2408. NOTE The above requirement does not preclude the use of other types of rope in service. Unless otherwise agreed between the purchaser and manufacturer, the breaking strength of ropes i
35、s selected according to Table 1. Table 1 Relationship between rope minimum breaking strength and drum load Drum load T U t i l i z a t i o n c o e f fi c i e n t K T 200 kN K = 2.5 T 1 000 kN K = 2 T = 200 approximately 1 000 kN Linear Insertion Breaking strength of ropes Fmax = K T 4.5.2 Drum diame
36、ter The drum diameter shall not be less than 14 times the diameter of the design-basis rope (see Table 2). 4.5.3 Drum capacity For guidance, normal capacity is given in Table 2. Individual requirements may be specified by the purchaser. The rules of the competent authorities of flag states shall app
37、ly. 4.5.4 Drum length The drum shall be designed to accommodate at least 50 m of steel cable on the inner layer. 4.5.5 Drum flange height When all the rope is reeled on a drum, the flange shall project at least 1,5 times the rope diameter above the outermost layer. 4.5.6 Connection strength of rope
38、and drum The 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 clutch The drum shall be declutchable from the drive; the power-operated clutch shall also be declutchable manually. ISO 2012 All rights reserved 5BS ISO 7365:2012ISO
39、7365:2012(E) 4.6 Auxiliary equipment 4.6.1 Control panel and arrangement The main control panel shall be placed in the navigation bridge with a clear view of the deck area, winch and rope guides. Control panels for emergency stop and emergency release shall be placed locally at the winch and at the
40、navigation bridge. Other requirements for control panels shall be agreed between the manufacturer and purchaser. 4.6.2 Warping ends A winch may be specified with or without warping ends. If warping ends are fitted for manual handling of steel rope, the pull on these shall not exceed 100 kN. The prof
41、ile of warping ends shall be in accordance with ISO 6482. 4.6.3 Load measuring device Winches shall be provided with continuous load monitors, which can at any time measure the loads on the steel rope from the drum during hoisting, rendering or braking operations, which can record instantaneous pull
42、, 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 negotiated between the manufacturer and purchaser. 4.7 Speed control 4.7.1 Winch speed The speed of
43、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 devices The rope shall be hauled in by a clockwise movement of a hand-wheel or crank handle, or alternatively, by
44、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 position Unless agreed otherwise between the manufacturer and purchaser, whatever the type of motive power, the operating device shall be designed
45、to return to the stop position automatically when the operator releases the control. 4.8 Emergency release 4.8.1 The winch shall be designed to allow drum release in an emergency when hauling or rendering, or when the drum brake is applied. A maximum delay of 10 s from the moment the release is actu
46、ated 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 be effected by the actuation of one identical control in all situations, even if the
47、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 drum brakes shall again function normally at once. The winch motor shall not re-enga
48、ge 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 national safety regulations affecting emergency release. 5 Performance specific
49、ations For 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 requirements The 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 load The holding load shall not be less than the breaking strength of the rope. 5.1.2 Rendering load The rendering load shall
