1、BRITISH STANDARD BS 6114:1987 ISO 6484:1986 Method for Measurement of volumetric ratings of elevating scrapers used for earth-moving ISO title: Earth-moving machinery Elevating scrapers Volumetric ratings UDC 624.132:621.879.445 181BS6114:1987 This British Standard, having been prepared under the di
2、rectionof the Road Engineering Standards Committee, was published under the authority of the Board of BSI and comes into effect on 27 February 1987 BSI 11-1999 First published May 1981 First revision February 1987 The following BSI references relate to the work on this standard: Committee reference
3、RDB/21 Draft announced in BSINews November 1986 ISBN 0 580 15806 3 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 represente
4、d: Associated Offices Technical Committee Construction Industry Training Board Construction Plant-hire Association Department of Trade and Industry Mechanical Engineering and Manufacturing Technology Division (Mmt) Federation of Civil Engineering Contractors Federation of Manufacturers of Constructi
5、on Equipment and Cranes Health and Safety Executive Institution of Civil Engineers Institution of Highways and Transportation Ministry of Defence Amendments issued since publication Amd. No. Date of issue CommentsBS6114:1987 BSI 11-1999 i Contents Page Committees responsible Inside front cover Natio
6、nal foreword ii 1 Scope and field of application 1 2 Reference 1 3 Definitions 1 4 Volumetric ratings 1 5 Expression of volumetric ratings 1 Figure 1 Elevating scraper 2 Figure 2 Components of scraper bowls 2 Figure 3 Boundaries of the struck volume planes related to the elevator idler and flights 3
7、 Figure 4 Boundaries of the top (heaped) volume Tangential plane 4 Figure 5 Boundaries of the top (heaped) volume 4 Publication referred to Inside back coverBS6114:1987 ii BSI 11-1999 National foreword This British Standard has been prepared under the direction of the Road Engineering Standards Comm
8、ittee and is a revision of BS6114:1981. It takes into account minor changes made in the1980edition of ISO6484 “Earth-moving machinery elevating scrapers Volumetric ratings” published by the International Organization for Standardization (ISO). This revision of BS6114thereby remains identical with IS
9、O6484 and BS6114:1981is superseded and withdrawn. 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 Standards
10、; attention is drawn especially to the following: The comma 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. Wherever the words “International Standard” appear, referring to this standard, they should be read as
11、 “British Standard”. Cross-reference. There is as yet no corresponding British Standard for ISO7133, but such a standard is in preparation. As this standard is referred to for information only, the validity of this British Standard is not affected. A British Standard does not purport to include all
12、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. Summary of pages This document comprises a front cover, an inside front cover, pages i and i
13、i, pages1 to 4, 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.BS6114:1987 BSI 11-1999 1 1 Scope and field of application This International S
14、tandard specifies a procedure for approximating the volume of a typical material carried in the bowl of an elevating scraper. The volumes are based on the inside dimensions of the bowl and a representative volume on top of the bowl. This rating method is intended to provide a consistent means of com
15、paring capacities; it is not intended to define actual capacities that might be observed in any specific application. 2 Reference ISO 7133, Earth-moving machinery Tractor-scrapers Terminology and commercial specifications. 3 Definitions 3.1 elevating scraper scraper, as defined in ISO7133 with a pow
16、ered mechanism fixed to the scraper bowl to assist in loading material 3.2 elevating scraper components components as identified in Figure 1, Figure 2 and Figure 3 4 Volumetric ratings 4.1 Positioning of the bowl 4.1.1 The bowl shall be positioned so that the lowest flat surface of the floor is hori
17、zontal or as close to horizontal as possible. 4.1.2 The material discharging mechanism shall be positioned to give maximum volumetric capacity. 4.1.3 The elevating mechanism shall be positioned to give the minimum distance between the cutting edge and the path of the outer tips of the elevator. This
18、 position shall be within the manufacturers specifications. 4.2 Boundaries of the struck volume The boundaries of the struck volume shall be defined by: a) the interior surfaces of the bowl sides; b) the interior surface of the rear of the bowl, or ejector mechanism; c) the bowl floor; d) the plane,
19、 perpendicular to the forward surface of the cutting edge, that passes through the centreline of the elevator idler (see Figure 3); e) the plane of, or linear extension of, the inner paths of the elevator flights adjacent to the load (see Figure 3); f) the plane defined by the mean lines, i.e. those
20、 horizontal lines above which, in a side view of the bowl, there is an area of the bowl side equal to the non-bowl side area under the lines (see Figure 3); g) the vertical planes from the interior surfaces of the bowl sides to the plane of the mean lines. 4.3 Boundaries of the top (heaped) volume T
21、he boundaries of the top (heaped) volume shall be defined by: a) the upper horizontal surface of the struck volume see 4.2 f); b) the plane of, or linear extension of, the plane of the inner paths of the elevator flights adjacent to the load see4.2 e); c) the tangential plane from the top of the sol
22、id portion of the rear of the bowl, or ejector mechanism, to the path of the outer tips of the elevator flights, where the point of tangency is at the upper end of the elevator (see Figure 4); The slope of this plane shall not be less than 3 : 1 (18,4 ) forward and upward from the top of the solid p
23、ortion of the rear of the bowl or ejector mechanism. If the slope is less than 3 : 1 this boundary plane shall be as defined in4.3 d). d) a plane of 3 : 1 (rear and down) slope tangent to the outer tips of the elevator flights that ends when it intersects the rear of the bowl; e) planes of 1 : 1 (45
24、 ) slope in and up from the bowl side mean lines (see Figure 5). 4.4 Rated volume The rated volume is the sum of the struck and top (heaped) volumes. The effect of local discontinuities gussets, supporting arms of the elevator in the scraper bowl, etc. on these volumes shall be ignored. 5 Expression
25、 of volumetric ratings 5.1 Any published volumetric ratings shall be within 3% of the volume determined by this procedure. 5.2 Ratings for volumes less than10m 3 shall be expressed to the nearest0,1m 3while those larger shall be expressed to the nearest0,5m 3 .BS6114:1987 2 BSI 11-1999 Figure 1 Elev
26、ating scraper Figure 2 Components of scraper bowlsBS6114:1987 BSI 11-1999 3 Figure 3 Boundaries of the struck volume Planes related to the elevator idler and flightsBS6114:1987 4 BSI 11-1999 Figure 4 Boundaries of the top (heaped) volume Tangential plane Figure 5 Boundaries of the top (heaped) volum
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