1、BRITISH STANDARD BS6490:1984 ISO7852:1983 Specification for Shapes and dimensions (excluding thread dimensions) of ploughbolt heads for earth-moving machinery ISO title: Earth-moving machinery Plough bolt heads Shapes and dimensions (excluding thread dimensions) UDC624.132:621.877/.879:621.882.6BS64
2、90:1984 This British Standard, having been prepared under the directionof the Road Engineering Standards Committee, was published under the authority ofthe Board of BSI and comes intoeffect on 30April1984 BSI 10-1999 The following BSI references relate to the work on this standard: Committee referen
3、ceRDB/21 Draft for comment83/10110DC ISBN 0 580 13798 8 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Road Engineering Standards Committee (RDB/-) to Technical Committee RDB/21 upon which the following bodies were represented: Associat
4、ed Offices Technical Committee Construction Industry Training Board Construction Plant-hire Association Department of Trade and Industry Federation of Civil Engineering Contractors Federation of Manufacturers of Construction Equipment and Cranes Health and Safety Executive Institution of Civil Engin
5、eers Institution of Highways and Transportation Ministry of Defence National Coal Board Trades Union Congress Amendments issued since publication Amd. No. Date of issue CommentsBS6490:1984 BSI 10-1999 i Contents Page Committees responsible Inside front cover National foreword ii 1 Scope and field of
6、 application 1 2 References 1 3 Shapes and dimensions of plough bolt heads 1 Annex A Shapes and dimensions of plough bolt heads having a90countersunkangle 2 Figure 1 Shapes and dimensions of plough bolt heads 1 Figure 2 Shapes and dimensions of plough bolt heads with a90countersunkangle 2 Table 1 Di
7、mensions of plough bolt heads 1 Table 2 Dimensions of plough bolt heads with a90 countersunk angle 2 Publications referred to Inside back coverBS6490:1984 ii BSI 10-1999 National foreword This British Standard has been prepared under the direction of the Road Engineering Standards Committee and is i
8、dentical with ISO7852:1983 “Earth-moving machinery Plough bolt heads Shapes and dimensions (excluding thread dimensions)”, published by the International Organization for Standardization (ISO). ISO7852 was produced as a result of international discussion in which the UK took an active part. Terminol
9、ogy 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 Standards; attention is drawn especially to the following. The comm
10、a has been used as a decimal marker. In British Standards it is current practice to use a full point on the baseline as the decimal marker. Where the words “International Standard” appear, referring to this standard, they should be read as “British Standard”. A British Standard does not purport to i
11、nclude 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 immunity from legal obligations. Cross-references International Standard Corresponding British Standard ISO6165:19
12、78 BS5718:1979 Glossary of terms for basic types of earth-moving machinery (Identical) ISO7129:1982 BS6343:1983 Specification for principal shapes and basic dimensions for cutting edges for tractors with dozer, graders and tractor scrapers (Identical) Summary of pages This document comprises a front
13、 cover, an inside front cover, pagesi andii, pages1 and2, 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.BS6490:1984 BSI 10-1999 1 1 Scope and
14、 field of application This International Standard specifies the shapes and lays down the dimensions of the heads of plough bolts (excluding thread dimensions) used for mounting of cutting edges, end bits, bucket teethetc. of earth-moving machinery as defined inISO6165 taking into consideration the i
15、nterchangeability. 2 References ISO6165, Earth-moving machinery Basic types Vocabulary. ISO7129, Earth-moving machinery Tractors with dozer, graders, tractor scrapers Cutting edges Principal shapes and basic dimensions. 3 Shapes and dimensions of plough bolt heads The shapes and dimensions of plough
16、 bolt heads shall be as in Figure 1 and Table 1. Table 1 Dimensions of plough bolt heads Figure 1 Shapes and dimensions of plough bolt heads Dimensions in millimetres Type B R Approximately D F Max. H h Approximately Nominal Tolerance Nominal Tolerance Max. Min. 1 12,7 2,0 22,2 1,1 9,4 8,3 6,7 2 15,
17、9 2,0 27,0 1,3 12,3 11,1 7,8 3 19,0 2,0 31,0 2,0 14,4 13,2 9,0 4 22,2 2,4 35,7 3,2 17,2 15,6 11,1 5 25,4 2,4 40,5 5,0 20,0 18,4 13,8 6 31,8 2,4 53,5 5,0 27,0 25,4 17,7 +0,4 0 +0,8 0 +0,4 0 +0,8 0 +0,4 0 +0,8 0 +0,8 0 +0,9 0 +0,8 0 +0,9 0 +0,8 0 +1,4 0BS6490:1984 2 BSI 10-1999 Annex A Shapes and dime
18、nsions of plough bolt heads having a 90 countersunk angle (This annex forms an integral part of the standard.) A.1 Field of application This annex is applicable to those countries using plough bolts having a90 countersunk angle. A.2 Shapes and dimensions of plough bolt heads with a90 countersunk ang
19、le The shapes and dimensions of plough bolt heads shall be as in Figure 2 and Table 2. Table 2 Dimensions of plough bolt heads with a90 countersunk angle Figure 2 Shapes and dimensions of plough bolt heads with a90 countersunk angle Dimensions in millimetres Type B R Approximately D F H h Approximat
20、ely Nominal Tolerance Nominal Tolerance Nominal Tolerance 1 12 2,0 23 0,65 1 10 0,45 6,5 2 16 2,0 28 0,65 1,5 12 0,55 7,5 3 20 2,0 35 0,80 1,5 12 0,55 9,0 4 24 2,4 42 0,80 2 18 0,65 11,0 5 36 3,0 60 1,00 3 17,5 1,70 15,0 +0,70 0 +0,70 0 +0,84 0 +0,84 0 +0,84 0BS6490:1984 BSI 10-1999 Publications ref
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