1、BSI Standards PublicationBS ISO 11001-1:2016Agricultural wheeled tractors Three-point hitch couplersPart 1: U-frame couplerBS ISO 11001-1:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 11001-1:2016. The UK participation in its preparation was entrusted to
2、 TechnicalCommittee AGE/6, Agricultural tractors and forestry machinery. A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct ap
3、plication. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 80814 2 ICS 65.060.01 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy
4、Committee on 29 February 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 11001-1:2016 ISO 2016Agricultural wheeled tractors Three-point hitch couplers Part 1: U-frame couplerTracteurs agricoles roues Coupleurs rapides trois points Partie 1: Coupleur par cadre en
5、 UINTERNATIONAL STANDARDISO11001-1Second edition2016-02-15Reference numberISO 11001-1:2016(E)BS ISO 11001-1:2016ISO 11001-1:2016(E)ii ISO 2016 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publicatio
6、n may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of
7、 the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 11001-1:2016ISO 11001-1:2016(E)Foreword iv1 Scope . 12 Normative references 13 Principle of frame coupler system . 14 Coupler di
8、mensions 15 Dimensions associated with implement 56 Requirements 6 ISO 2016 All rights reserved iiiContents PageBS ISO 11001-1:2016ISO 11001-1:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work
9、of preparing International Standards is normally carried out through ISO technical committees. Each 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-government
10、al, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the I
11、SO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibil
12、ity that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of pa
13、tent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as info
14、rmation about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information.The committee responsible for this document is ISO/TC 23, Tractors and machinery for agriculture and forestry, Subcommittee SC 4, Tractors.This seco
15、nd edition cancels and replaces the first edition (ISO 11001-1:1993), which has been technically revised.ISO 11001 consists of the following parts, under the general title Agricultural wheeled tractors Three-point hitch couplers: Part 1: U-frame coupler Part 2: A-frame coupler Part 3: Link coupler P
16、art 4: Bar coupleriv ISO 2016 All rights reservedBS ISO 11001-1:2016INTERNATIONAL STANDARD ISO 11001-1:2016(E)Agricultural wheeled tractors Three-point hitch couplers Part 1: U-frame coupler1 ScopeThis part of ISO 11001 specifies the essential dimensions for the attachment of three-point hitch imple
17、ments to agricultural wheeled and track-laying tractors equipped with a three-point free link hitch according to ISO 730 or ISO 8759-1 and a U-frame hitch coupler.NOTE In general the dimensions associated with the tractor and implement for use with hitch couplers are the same as those for the three-
18、point linkage specified in ISO 730 or ISO 8759-1, and those for the clearance zone specified in ISO 2332.The three-point hitch coupler systems constitute a special method of implement mounting. The hitch couplers are an additional component located between the three-point linkage and the implement,
19、making it possible to hitch and unhitch from the operators seat. Due to the special construction and function of hitch couplers, it can be necessary to vary the length of the upper and lower links indicated in the referenced standards.This part of ISO 11001 applies to categories 1, 2N, 2, 3N, 3, 4N,
20、 and 4 of agricultural wheeled and track-laying tractors as defined in ISO 730 or ISO 8759-1.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies
21、. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 730, Agricultural wheeled tractors Rear-mounted three-point linkage Categories 1N, 1, 2N, 2, 3N, 3, 4N and 4ISO 2332:2009, Agricultural tractors and machinery Connection of implements via t
22、hree-point linkage Clearance zone around implementISO 8759-1, Agricultural wheeled tractors Front-mounted equipment Part 1: Power take-off and three-point linkage3 Principle of frame coupler systemA frame coupler system is a one-phase implement coupler where the three-point linkage of the tractor (s
23、ee ISO 730 or ISO 8759-1) is fitted with a U-frame and the implement has the provisions to be mounted to the frame. Hitching and unhitching can be operated from the tractor operators seat.4 Coupler dimensionsCoupler dimensions shall comply with Figure 1 and Table 1.4.1 The upper hook offset (dimensi
24、on B5) shall be not more than 15,75 mm greater or 6,35 mm less than the lower socket offset (dimension B1). ISO 2016 All rights reserved 1BS ISO 11001-1:2016ISO 11001-1:2016(E)4.2 The implement shall provide a minimum clearance h3, (see Figure 2 and Table 2) when attached to the coupler to permit lo
25、wering all elements of the coupler to ensure satisfactory attachment and detachment of the implement from the coupler.NOTE Older legacy implements may only have clearances of 120,9 mm for categories 1, 2N, 2, 3N, and 3, and 146 mm minimum for categories 4N and 4.4.3 The upper hook of the quick coupl
26、er shall be centred between the lower sockets within 3 mm.4.4 The lower implement attaching point on the quick-attaching coupler shall be located in the vertical position such that the lift range, power range and levelling adjustment, as specified in ISO 730 or ISO 8759-1 are fulfilled.4.5 Implement
27、 components, other than the hitch pins, that are in alignment with the lower socket width (dimension A1) shall not extend forward of the centreline of the lower socket for a distance of h5(see Figure 2 and Table 2) above the lower socket. Components above this height, extending laterally more than l
28、3(see Figure 2 and Table 2) from the coupler centreline, shall not extend more than 25 mm forward of the vertical centreline through the upper hook opening.4.6 The lower socket width (A1) shall be maintained within the area defined by dimensions B2, H6, H7and B9.4.7 The lower link to coupler pins ma
29、y be recessed to provide design freedom to obtain structural integrity in the coupler frame, resulting in a common dimension for L3and L6, and L4and L7, respectively.4.8 Note that ISO 730 specifies that dimension L in Table 2 shall have a range of 75 mm for hitch categories 1, 2N, and 2 and a range
30、of 100 mm for hitch categories 3N, 3, 4N, and 4. Dimension B1in this part of ISO 11001 allows the lower socket offset to be larger than the range allowed in ISO 730. For tractors designed with U-frame couplers as standard equipment, the lower links should be shortened so that the distance to the low
31、er U-frame coupler jaw falls within the range for dimension L specified in ISO 730. For tractors that offer U-frame couplers as an option, the lower links should be designed to the minimum L dimension given in ISO 730 as far as possible to minimize the distance that the combined lower link and U-fra
32、me coupler length is over the upper limit of the L dimension given in ISO 730.4.9 For U-frame couplers that by design can be converted to different hitch categories, dimensions H6, H7, H5, L4, L2, L5and L3may not be achieved in all configurations.2 ISO 2016 All rights reservedBS ISO 11001-1:2016ISO
33、11001-1:2016(E)Luni00A03Buni00A06Auni00A02Buni00A07Luni00A01Auni00A01Luni00A02Luni00A05Huni00A06Huni00A07Huni00A0 5Luni00A06Luni00A04Luni00A07Huni00A04+Buni00A05Buni00A02Huni00A08Huni00A0 4Huni00A01Buni00A09Buni00A01DBuni00A04Buni00A08Buni00A038,6Huni00A03Huni00A02R73,15Runi00A0maxXXFigure 1 Coupler
34、 dimensionsTable 1 Coupler dimensionsDimensions in millimetresDimen-sionsDesigna-tionCategory1 2N 2 3N 3 4N 4min max min max min max min max min max min max min maxL1Lower socket in-side span686 690 686 690 828 834 828 834 970 975 925 930 1 170 1 175A1Lower sock-et width28 30 63 67 63 67 63 67 63 67
35、 86 89 86 89B1Lower sock-et offset 104 130 130 130 130 165 165DLower sock-et diameter38,1 38,6 38,1 38,6 38,1 38,6 38,1 38,6 38,1 38,6 52 52,5 52 52,5B2Lower sock-et overhang 90 90 90 90 90 130 130H1Lower sock-et depth 90 90 90 90 90 130 130 ISO 2016 All rights reserved 3BS ISO 11001-1:2016ISO 11001
36、-1:2016(E)Dimen-sionsDesigna-tionCategory1 2N 2 3N 3 4N 4min max min max min max min max min max min max min maxA2Upper hook width 36 44 44 44 44 57 57B3Upper hook overhang 73 73 73 73 73 82 82B4Upper hook opening32,5 33,3 32,5 33,3 32,5 33,3 32,5 33,3 32,5 33,3 45,7 46,5 45,7 46,5B5Upper hook offse
37、t 108,5 130 130 130 130 165 165H2Upper hook depth 92 92 92 92 92 102 102H3Upper hook height 100 100 100 100 100 120 120H4Upper hook vertical spacing375 378 375 378 375 378 477 480 477 480 680 683 680 683H4+Alternate upper hook vertical spacing (optional)455 458 478 481 478 481 554 557 554 557 B6Impl
38、ement mast clear-ance42 42 42 42 42 54 54 H5Coupler frame height283 283 283 365 365 508 508 H6Coupler leg clearance height inside200 200 200 200 200 330 330 H7Coupler leg clearance height out-side180 180 180 180 180 300 300 H8Lower hook height 60 60 60 60 60 75 75L2Coupler frame clear-ance width560
39、560 560 560 560 660 660 L3Coupler frame in-side width657 657 796 796 858 858 1 104 L4Coupler frame lower out-side width 806 806 1 005 1 005 1 175 1 175 1 420L5Coupler frame upper out-side width 880 880 1 065 1 065 1 175 1 420 1 420L6Lower link attaching pin inside620 620 760 760 860 860 1 104 L7Lowe
40、r link attaching pin outside 830 830 1 020 1 020 1 220 1 220 1 420Table 1 (continued)4 ISO 2016 All rights reservedBS ISO 11001-1:2016ISO 11001-1:2016(E)Dimen-sionsDesigna-tionCategory1 2N 2 3N 3 4N 4min max min max min max min max min max min max min maxB7Coupler frame over-all span 225 225 225 225
41、 305 305 305B8Upper hook reach48 48 48 48 48 63 63 B9Implement lower frame clearance42 42 42 42 42 54 54 RLower hitch cou-pler radius 90 90 90 100 100 130 130+ A second alternative upper hook position may be provided as an option. This position matches the North American practice for mast height for
42、 categories 1, 2N, 2, 3N and 3 for three-point free-link attachment5 Dimensions associated with implementDimensions associated with the implement shall comply with Figure 2 and Table 2.5.1 For implements with cantilever-mounted lower hitch pins, special quick coupler hitch pins shall be supplied to
43、dimensions d1, l1, l2and d2. Adapter bushings may be supplied which convert existing three-point hitch pins to dimensions d1, l1, l2and d2instead of special quick coupler hitch pins.For three-point hitch implements on which the lower hitch points consist of clevis style mounting pins, no additional
44、thrust surfaces are required, provided that the pin diameter and support dimensions conform to dimensions d1, l1, l2and b1.The method used and dimensions related to attaching the pins or adapter bushings to the implement are at the discretion of the implement manufacturer.5.2 The lower implement att
45、aching point on the U-frame coupler shall be located in the vertical position such that the lift range, power range and levelling adjustment, as specified in ISO 730 or ISO 87591, are fulfilled.5.3 Implement components, other than the hitch pins and clevis, that are in alignment with the lower socke
46、t width dimension A1(see Figure 1 and Table 1) shall not extend forward of the centreline of the lower socket for a distance of h5(see Figure 2 and Table 2) above the lower socket.Components above this height extending laterally more than l3(see Figure 2 and Table 2) from the coupler centreline shal
47、l not extend more than 25 mm forward of the vertical centreline through the upper hook opening.5.4 The adapter or lower hitch pin shall be in line within 0,015 mm per 1 mm of pin length.5.5 The implement shall provide a minimum clearance h3(see Figure 2 and Table 2) when attached to the coupler to p
48、ermit lowering all elements of the coupler, for satisfactory attachment and detachment of the implement from the coupler.NOTE Older legacy implements may only have clearances of 120,9 mm for categories 1, 2N, 2, 3N, and 3, and 146 mm minimum for categories 4N and 4.5.6 The upper hook opening on the implement shall be located central to the lower hitch pin shoulders within 3 mm.Table 1 (continued) ISO 2016 All rights reserved 5BS ISO 11001-1:2016ISO 11001-1:2016(E)5.7 Provisions shall be made for adequate upper h
