1、BRITISH STANDARD BS 7006:1989 ISO 8912:1986 Specification for Trailed agricultural rollers ISO title: Equipment for working the soil Roller sections Coupling and section width UDC 631.3.072.1:631.314BS7006:1989 This British Standard, having been prepared under the directionof the Agricultural Machin
2、ery and Implements Standards Committee, was published under the authority ofthe Board of BSI and comes intoeffect on 28February1989 BSI 11-1999 The following BSI references relate to the work on this standard: Committee reference AGE/5 Draft for comment 85/79450 DC ISBN 0 580 16764 X Committees resp
3、onsible for this British Standard The preparation of this British Standard was entrusted by the Agricultural Machinery and Implements Standards Committee (AGE/-) to Technical Committee AGE/5, upon which the following bodies were represented: AFRC Institute of Engineering Research Agricultural Engine
4、ers Association Agricultural Machine Parts Export Association Ministry of Agriculture, Fisheries and Food National Farmers Union Silsoe College Amendments issued since publication Amd. No. Date of issue CommentsBS7006:1989 BSI 11-1999 i Contents Page Committees responsible Inside front cover Nationa
5、l foreword ii 1 Scope and field of application 1 2 References 1 3 General requirements 1 Annex Examples of hitching with three or five sections for working or transport 3 Figure 1 Section dimensions 2 Figure 2 Examples of hitching with three or five sections 3 Publications referred to Inside back co
6、verBS7006:1989 ii BSI 11-1999 National foreword This British Standard has been prepared under the direction of the Agricultural Machinery and Implements Standards Committee. It is identical with ISO8912:1986 “Equipment for working the soil Roller sections Coupling and section width”, published by th
7、e International Organization for Standardization (ISO). Terminology and conventions. The text of the International Standard has been approved as suitable for publication as a British Standard without deviation. Some terminology and certain conventions are not identical with those used in British Sta
8、ndards; attention is drawn especially to the following. Wherever the words “International Standard” appear, referring to this standard, they should be read as “British Standard”. The Technical Committee has reviewed the provisions of ISO4254-1, to which reference is made in the text, and has decided
9、 that they are acceptable for use in conjunction with this standard. 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 immun
10、ity from legal obligations. Cross-references International Standard Corresponding British Standard ISO 500:1979 BS 5861:1980 Specification for rear-mounted power take-offs on agricultural tractors (Technically equivalent) Summary of pages This document comprises a front cover, an inside front cover,
11、 pages i and ii, pages1to4, 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.BS7006:1989 BSI 11-1999 1 1 Scope and field of application This Int
12、ernational Standard specifies characteristics of coupling devices and lays down dimensions for the section width of trailed agricultural rollers used for working the soil. 2 References ISO 500, Agricultural tractors Power-take-off and drawbar Specification. ISO 4254-1, Tractors and machinery for agr
13、iculture and forestry Technical means for ensuring safety Part 1: General. 3 General requirements 3.1 Front-mounted (according to the direction of travel) coupling halves shall be of a ring-type design. The hitch ring of the leading section shall be designed to accommodate a tractor drawbar clevis a
14、s specified in ISO500. 3.2 Rear-mounted coupling halves shall be of a clevis-type design. 3.3 All couplings shall allow free articulation around the vertical axis and 30 around both the transverse and longitudinal axes. 3.4 Section widths shall comply with the dimensions given in Figure 1. Recommend
15、ed hitch height for the leading section is400 50mm. Recommended hitch height for following sections is approximately equal to the height of the roller axle. 3.5 If the design of the roller requires coupling facilities other than the central ones, any such facilities shall be placed along the centrel
16、ine of the outermost (plain) roller rings (see Figure 1). 3.6 Drawbar jacks or supports in accordance with ISO4254-1may be required.BS7006:1989 2 BSI 11-1999 Parameter Dimensions Leading section Following section Ring hole diameter, d 33 23 Hitch length, A 1350min. 550 50 Section width, B 1500 1800
17、2100 2) 2 400 2) 2 800 2) NOTEThe figure is only given for the purpose of referring to the dimensions and does not purport to specify design details. 1)Roller sections may not have these holes. 2)Mainly for rollers having only one section. Figure 1 Section dimensionsBS7006:1989 BSI 11-1999 3 Annex E
18、xamples of hitching with three or five sections for working or transport All wings shall be foldable within the limits specified for the section width during transport (see Figure 2). Figure 2 Examples of hitching with three or five sections4 blankBS7006:1989 BSI 11-1999 Publications referred to See
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