1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 6489-5:2011Agricultural vehicles Mechanical connectionsbetween towed and towingvehiclesPart 5: Specifications for non-swivel cleviscouplingsBS ISO 6489-5:2011 BRITISH STAN
2、DARDNational forewordThis British Standard is the UK implementation of ISO 6489-5:2011.The UK participation in its preparation was entrusted to TechnicalCommittee AGE/6, Agricultural tractors and forestry machinery.A list of organizations represented on this committee can beobtained on request to it
3、s secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 66539 4ICS 65.060.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was p
4、ublished under the authority of theStandards Policy and Strategy Committee on 31 July 2011.Amendments issued since publicationDate Text affectedBS ISO 6489-5:2011Reference numberISO 6489-5:2011(E)ISO 2011INTERNATIONAL STANDARD ISO6489-5First edition2011-07-15Agricultural vehicles Mechanical connecti
5、ons between towed and towing vehicles Part 5: Specifications for non-swivel clevis couplings Vhicules agricoles Liaisons mcaniques entre vhicules remorqueurs et vhicules remorqus Partie 5: Spcifications pour attelages de type chape non rotatifs BS ISO 6489-5:2011ISO 6489-5:2011(E) COPYRIGHT PROTECTE
6、D DOCUMENT ISO 2011 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 membe
7、r body in the 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 Switzerland ii ISO 2011 All rights reservedBS ISO 6489-5:2011ISO 6489-5:2011(E) ISO 2011 All rights reserve
8、d iiiForeword 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 member body interested in a subject for whic
9、h 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 Electrotechnical Commission (IEC) on all ma
10、tters 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 adopted by the technical committees are circ
11、ulated 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 patent rights. ISO shall not be held respons
12、ible for identifying any or all such patent rights. ISO 6489-5 was prepared by Technical Committee ISO/TC 23, Tractors and machinery for agriculture and forestry, Subcommittee SC 4, Tractors. ISO 6489 consists of the following parts, under the general title Agricultural vehicles Mechanical connectio
13、ns between towed and towing vehicles: Part 1: Dimensions of hitch-hooks Part 2: Specifications for clevis coupling 40 Part 3: Tractor drawbar Part 4: Dimensions of piton-type coupling Part 5: Specifications for non-swivel clevis couplings BS ISO 6489-5:2011BS ISO 6489-5:2011INTERNATIONAL STANDARD IS
14、O 6489-5:2011(E) ISO 2011 All rights reserved 1Agricultural vehicles Mechanical connections between towed and towing vehicles Part 5: Specifications for non-swivel clevis couplings 1 Scope This part of ISO 6489 specifies the requirements for non-swivel clevis couplings used for the attachment of agr
15、icultural trailers and implements equipped with a swivel hitch ring as specified in ISO 5692-3 to the rear of self-propelled agricultural vehicles. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition
16、 cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 286-1:1988, ISO system of limits and fits Part 1: Bases of tolerances, deviations and fits ISO 2768-1:1989, General tolerances Part 1: Tolerances for linear and angular dimen
17、sions without individual tolerance indications ISO 5692-3:2011, Agricultural vehicles Mechanical connections on towed vehicles Part 3: Swivel hitch rings 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 non-swivel clevis coupling hitching devi
18、ce, not rotating around the horizontal longitudinal axis (roll), for the mechanical connection of trailers and implements 3.2 coupling reference centre point along the pin centreline crossing the horizontal symmetry centreline of the drawbar housing 3.3 D value D mathematically established represent
19、ative force for the horizontal component of the force acting on the coupling in the longitudinal axis of the machine NOTE It is expressed in kilonewtons (kN). BS ISO 6489-5:2011ISO 6489-5:2011(E) 2 ISO 2011 All rights reserved3.4 vertical load on the coupling point S load transmitted, under static c
20、onditions, on the reference centre of the mechanical coupling NOTE It is expressed in kilograms (kg). 4 Constructional requirements Constructional requirements not given in this part of ISO 6489 shall be specified as appropriate. Tolerances on dimensions without individual tolerance indications shal
21、l be in accordance with ISO 2768-1:1989, tolerance class c. Limits and fits shall be in accordance with ISO 286-1. The dimensions of trailer or implement couplings of shapes w, x, y and z shall be in accordance with Figure 1 and Table 1. 5 Calculation of D value The D value shall be calculated, in k
22、ilonewtons, using the following equation, where the values of mrand mtare known: trtrmmDgmm=+where g is the acceleration due to gravity, 9,81 m/s2; mris the allowable mass of the trailer or towed implement, in tonnes; mtis the allowable total mass of the tractor or towing vehicle, in tonnes. NOTE Di
23、mensions are given in Table 1. Figure 1 Non-swivel clevis coupling BS ISO 6489-5:2011ISO 6489-5:2011(E) ISO 2011 All rights reserved 3Table 1 Shapes and dimensions of trailer or implement clevis couplings Dimension mm Vertical load S kg D valueD kN ShapeD 0,5 a min. b min. 1 000 35 w 18 50 40 2 000
24、90 x 28 70 55 3 000 120 y 43 100 80 3 000 120 z 50 110 95 6 Design requirements 6.1 The coupling unit shape shall allow the swivel hitch ring the following minimum angles: 60 in the horizontal plane (yaw), 20 in the vertical plane (pitch), 20 around its longitudinal axis (roll). 6.2 Where a sub-fram
25、e is used between the agricultural tractor or towing vehicle and the coupling, this shall be tested with the appropriate coupling, according to the maximum coupling capacity. 6.3 The non-swivel clevis coupling unit shall be provided with a device to prevent unintentional uncoupling. This device shal
26、l be easy to apply, retained on the hitch unit, and tested by the application of a static load of 0,25 D. 6.4 The clevis shall be designed for the D values specified in Table 1. 7 Location 7.1 Horizontal location The non-swivel clevis coupling shall be located as shown in Figure 2, mounted in the pl
27、ane of the tractors or towing vehicles longitudinal axis. The centre of the non-swivel clevis coupling shall be located at the distance, t, rearwards from the end of the power take-off (PTO) shaft, in accordance with Table 2. BS ISO 6489-5:2011ISO 6489-5:2011(E) 4 ISO 2011 All rights reservedFigure
28、2 Non-swivel clevis coupling Relation to power take-off (PTO) Table 2 Distances between non-swivel coupling and power take-off (PTO) t 10 mm Coupling type PTO types 1 and 2 PTO type 3 w 80400 65500 x 100400 8550y 120400 105500 z 130400 115500 7.2 Vertical location The height above the ground of the
29、coupling device shall be in accordance with one of the following relationships (see Figure 3): BS ISO 6489-5:2011ISO 6489-5:2011(E) ISO 2011 All rights reserved 5()()at1t0,20,8 0,8 + mmlSchmSor ()()1a 1t21t0,20,8 0,8 + mmlSchmSwhere mtis the mass of the tractor or towing vehicle, in kg; m1tis the ma
30、ss of the tractor or towing vehicle with the ballast weight on the front axle, in kg; mais the load on the front axle of the unladen tractor or towing vehicle, in kg; m1ais the load on the front axle of the tractor or towing vehicle with the ballast weight on the front axle, in kg; l is the tractor
31、or towing vehicle wheelbase, in mm; S is the vertical load on the coupling point, in kg; c is the distance, in mm, between the reference centre of the mechanical coupling and the vertical plane passing through the axle of the rear wheels of the tractor or towing vehicle. NOTE mpis the load on the re
32、ar axle of the unladen tractor. Figure 3 Non-swivel clevis coupling Vertical location BS ISO 6489-5:2011ISO 6489-5:2011(E) 6 ISO 2011 All rights reserved8 Permissible mechanical connections between rings and couplings See Table 3. Table 3 Permissible mechanical connections between rings and coupling
33、s Coupling Ring ISO 6489-5 Shape w ISO 5692-3 Shape W ISO 6489-5 Shape x ISO 5692-3 Shape X ISO 6489-5 Shape y ISO 5692-3 Shape Y ISO 6489-5 Shape z ISO 5692-3 Shape Z 9 Marking The non-swivel clevis coupling shall have a permanent and visible coupling shape letter marking for identification. BS ISO
34、 6489-5:2011ISO 6489-5:2011(E) ISO 2011 All rights reserved 7Annex A (informative) Recommended mechanical connection combinations between towing and towed vehicles Towing vehicle Towed vehicle ISO 6489-1:1991, hook type ISO 5692:1979/ISO 5692-1:2004, hitch ring (50 mm hole centre, 30 mm ring diamete
35、r) ISO 5692:1979/ISO 5692-1:2004, hitch ring (50 mm hole centre, 30 mm ring diameter) ISO 6489-1:2001, hook typeaISO 20019:2001, hitch ring (50 mm hole centre, 30 to 41 mm ring diameter)ISO 5692-2:2002, coupling ring (40 mm socket) ISO 8755:1986, 40 mm drawbar couplingbISO 6489-2:2002, bolt type ISO
36、 1102:1986, 50 mm drawbar couplingbISO 6489-4:2004, piton type ISO 5692:1979/ISO 5692-1:2004, hitch ring (50 mm hole centre, 30 mm ring diameter) ISO 6489-5:2011, non-swivel clevis coupling ISO 5692-3:2011, swivel hitch rings ISO 24347:2005, ball type ISO 24347 (80 mm ball diameter) Only these combi
37、nations are recommended. a Connecting an ISO 6489-1:2001 hook, manufactured in accordance with the maximum sizes permitted, to hitch rings in accordance with ISO 5692-1 and of minimum dimensions (30 mm ring diameter) according to ISO 20019 could result in a “jerky” connection between the tractor or
38、towing vehicle and the trailer or implement, and less driving comfort. bPrimarily used on trailers towed behind trucks (on-road). BS ISO 6489-5:2011ISO 6489-5:2011(E) 8 ISO 2011 All rights reservedBibliography 1 ISO 1102:1986, Commercial road vehicles Mechanical connections between towing vehicles a
39、nd trailers 50 mm drawbar couplings 2 ISO 5692:1979, Agricultural vehicles Mechanical connections on towed vehicles Hitch-rings Specifications 3 ISO 5692-1:2004, Agricultural vehicles Mechanical connections on towed vehicles Part 1: Dimensions for hitch rings of 50/30 mm cross section 4 ISO 5692-2:2
40、002, Agricultural vehicles Mechanical connections on towed vehicles Part 2: Coupling ring 40 with socket 5 ISO 6489-1:1991, Agricultural vehicles Mechanical connections on towing vehicles Part 1: Hook type 6 ISO 6489-1:2001, Agricultural vehicles Mechanical connections between towed and towing vehic
41、les Part 1: Dimensions of hitch-hooks 7 ISO 6489-2:2002, Agricultural vehicles Mechanical connections between towed and towing vehicles Part 2: Specifications for clevis coupling 40 8 ISO 8755:1986, Commercial road vehicles Mechanical connections between towing vehicles and trailers 40 mm drawbar co
42、upling 9 ISO 20019:2001, Agricultural vehicles Mechanical connections on towed vehicles Dimensions for hitch rings 10 ISO 24347:2005, Agricultural vehicles Mechanical connections between towed and towing vehicles Dimensions of ball-type coupling device (80 mm) BS ISO 6489-5:2011BS ISO 6489-5:2011ISO
43、 6489-5:2011(E) ICS 65.060.10 Price based on 8 pages ISO 2011 All rights reserved This page deliberately left blankBSI is the independent national body responsible for preparing British Standardsand other standards-related publications, information and services. It presents the UK view on standards
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