1、BRITISH STANDARD BS 6913-14: 1997 ISO 6392-2: 1996 Operation and maintenance of earth-moving machinery Part 14: Specification for lubrication fittings Grease-gun nozzles ICS 53.100BS6913-14:1997 This British Standard, having been prepared under the directionof the Sector Board for Building and Civil
2、 Engineering, was published under the authorityof the Standards Board and comes into effect on 15June1997 BSI 09-1999 The following BSI references relate to the work on this standard: Committee reference B/513/1 Draft for comment 95/101355 DC ISBN 0 580 27389 X Committees responsible for this Britis
3、h Standard The preparation of this British Standard was entrusted by Technical Committee B/513, Construction equipment and plant, and site safety, to Subcommittee B/513/1, Earth-moving machinery, upon which the following bodies were represented: British Coal Corporation Construction Plant (Hire Asso
4、ciation) Federation of Civil Engineering Contractors Federation of Manufacturers of Construction Equipment and Cranes Health and Safety Executive Institution of Civil Engineers Silsoe Research Institute Amendments issued since publication Amd. No. Date CommentsBS6913-14:1997 BSI 09-1999 i Contents P
5、age Committees responsible Inside front cover National foreword ii 1 Scope 1 2 Normative reference 1 3 Nozzle type and mounting position 1 4 Structure 2 5 Dimensions, materials and finish 2 6 Grease injection angle 2 7 Nozzle uncoupling angle 3 Annex A (informative) Referred dimensions of grease-gun
6、 nozzles 4 Annex B (informative) Bibliography 5 Figure 1 1 Figure 2 Rubber nozzle-centre type 1 Figure 3 Steel nozzle-centre type 2 Figure 4 Injection angle 3 Figure 5 Uncoupling angle 3 Figure A.1 Rubber nozzle-centre type 4 Figure A.2 Steel nozzle-centre type 4 Table 1 2 List of references Inside
7、back coverBS6913-14:1997 ii BSI 09-1999 National foreword This Part of BS6913 has been prepared by Subcommittee B/513/1. It is identical with ISO6392-2:1996 Earth-moving machinery Lubrication fittings Part2:Grease-gun nozzles published by the International Organization for Standardization (ISO). ISO
8、 6392-2 was prepared by Subcommittee3, Operation and maintenance, of ISO Technical Committee127, Earth-moving machinery, with the active participation and approval of the UK. This text represents a revision, in Parts, ofISO6392:1980. The other Part, ISO 6392-1 Earth-moving machinery Lubrication fitt
9、ings Nipple type is being published in theUK as BS6913-13:1997. The previous edition of the British Standard was published as BS6060:1981 which has been withdrawn. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible fo
10、r their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-reference International Standard Corresponding British Standard BS 6914 Terminology (including definitions of dimensions and symbols) for earth-moving machinery ISO 6165:1
11、987 a Part 1:1988 Glossary of terms for basic types of earth-moving machinery (Identical) a Currently under revision. Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, theISO title page, pageii, pages1to6, an inside back cover and a back cover. This standar
12、d 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.BS6913-14:1997 ii BSI 09-1999 Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bo
13、dies (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 which a technical committee has been established has the right to be represented on that committee. International organizatio
14、ns, 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 matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulat
15、ed to the member bodies for voting. Publication as an International Standard requires approval by at least75% of the member bodies casting a vote. International Standard ISO6392-2 was prepared by Technical Committee ISO/TC127, Earth-moving machinery, SubcommitteeSC3, Operation and maintenance. This
16、first edition of ISO6392-2 together with ISO6392-1 cancels and replaces ISO6392:1980, which has been technically revised. ISO 6392 consists of the following parts, under the general title Earth-moving machinery Lubrication fittings: Part 1: Nipple type; Part 2: Grease-gun nozzles. Annex A andAnnex B
17、 of this part of ISO6392 are for information only. Descriptors: Earth-moving equipment, lubrication, lubrication systems, fittings, grease guns, nozzles, specifications, dimensions.BS6913-14:1997 BSI 09-1999 1 1 Scope This part of ISO6392 specifies grease-gun nozzles to be used for the injection of
18、grease into the lubrication points of earth-moving machinery by means of the grease fitting specified in part1 of this InternationalStandard. The grease-gun nozzles covered by this part of ISO6392 are used on the types of earth-moving machinery defined inISO6165. 2 Normative reference The following
19、standard contains provisions which, through reference in this text, constitute provisions of this part of ISO6392. At the time of publication, the edition indicated was valid. All standards are subject to revision, and parties to agreements based on this part ofISO6392 are encouraged to investigate
20、the possibility of applying the most recent edition of the standard indicated below. Members of IEC and ISO maintain registers of currently valid InternationalStandards. ISO 6165:, Earth-moving machinery Basic types Vocabulary 1) . 3 Nozzle type and mounting position 3.1 Nozzle type Nozzle types are
21、 divided into two types: the rubber nozzle-centre type (seeFigure 2) and the steel nozzle-centre type (seeFigure 3). The rubber nozzle-centre type is recommended for the grease-gun nozzles to be used on earth-moving machinery. For the grease injection into the grease fitting, the rubber nozzle-centr
22、e type is superior in sealability and grease leakage is less compared to the steel nozzle-centre type. 3.2 Mounting position Figure 1 shows an example of the mounting position of the grease-gun nozzle. The specific type of grease gun is not prescribed. 1) To be published. (Revision of ISO6165:1987)
23、Figure 1 Figure 2 Rubber nozzle-centre typeBS6913-14:1997 2 BSI 09-1999 4 Structure The structure of the grease-gun nozzle shall be able to withstand a working pressure of20MPa and a minimum destructive pressure of80MPa without leakage. When the grease-gun is used in a track adjuster, the grease inj
24、ection pressure can exceed50MPa; the life of the nozzle (number of leak free applications) may decrease if the grease-gun is removed under the residual pressure. It is therefore recommended to use the grease-gun nozzle with a relief valve. 5 Dimensions, materials and finish 5.1 Dimensions The dimens
25、ions of grease-gun nozzles shall be as shown inFigure 2 andFigure 3 andTable 1. Table 1 5.2 Materials 5.2.1 Rubber nozzle-centre type The nail and the spacer (seeFigure 2) shall be manufactured from steel with a Rockwell hardness of at least45HRC. The nozzle centre shall be manufactured from rubber
26、with hardness75IRHD to95IRHD. 5.2.2 Steel nozzle-centre type The nail and the nozzle centre (seeFigure 3) shall be manufactured from steel with a Rockwell hardness of at least45HRC. 5.3 Finish Nozzle bodies and covers (seeFigure 2 andFigure 3) shall be electroplated with zinc and chromate treatment
27、in accordance with ISO2081. 6 Grease injection angle There shall be no leakage of grease when the nozzle is coupled to the grease-nipple and inclined up to the injection angle of10max. (seeFigure 4). Type of nozzle d 1 mm d 2 Rubber nozzle-centre type 14 to 15 ISO 7-Rc 1/8 Steel nozzle-centre type 1
28、6 to 18 ISO 7-Rp 1/8 Figure 3 Steel nozzle-centre typeBS6913-14:1997 BSI 09-1999 3 7 Nozzle uncoupling angle It shall be possible to uncouple the grease-gun nozzle up to the uncoupling angle of25max. (seeFigure 5). Figure 4 Injection angle Figure 5 Uncoupling angleBS6913-14:1997 4 BSI 09-1999 Annex
29、A (informative) Referred dimensions of grease-gun nozzles For information, dimensions that comply with ISO6392-1 are given in this annex. Figure A.1 Rubber nozzle-centre type Figure A.2 Steel nozzle-centre typeBS6913-14:1997 BSI 09-1999 5 Annex B (informative) Bibliography 1 ISO 7-1:1994, Pipe threa
30、ds where pressure-tight joints are made on the threads Part1:Dimensions, tolerances and designation. 2 ISO 48:1994, Rubber, vulcanized or thermoplastic Determination of hardness (hardness between10IRHD and100IRHD). 3 ISO 261:1973, ISO general purpose metric screw threads General plan. 4 ISO 674:1988
31、, Metallic materials Hardness test Calibration of standardized blocks to be used for Rockwell hardness testing machines (scalesABCDEFGHK).6 blankBS6913-14:1997 BSI 09-1999 List of references See national foreword.BS 6913-14: 1997 ISO 6392-2: 1996 BSI 389 Chiswick High Road London W4 4AL BSIBritishSt
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