1、AN AMERICAN NATIONAL STANDARDSafety Standard for Conveyors and Related EquipmentASME B20.1-2006(Revision of ASME B20.1-2003)Copyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ASME B20.1-2006(Revision
2、 of ASME B20.1-2003)Safety Standardfor Conveyorsand RelatedEquipmentAN AMERICAN NATIONAL STANDARDThree Park Avenue New York, NY 10016Copyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-Date of Issuanc
3、e: October 31, 2006The next edition of this Standard is scheduled for publication in 2009. There will be no addendaissued to this edition.ASME issues written replies to inquiries concerning interpretations of technical aspects of thisStandard. Interpretations are published on the ASME Web site under
4、 the Committee Pages athttp:/www.asme.org/codes/ as they are issued.ASME is the registered trademark of The American Society of Mechanical Engineers.This code or standard was developed under procedures accredited as meeting the criteria for American NationalStandards. The Standards Committee that ap
5、proved the code or standard was balanced to assure that individuals fromcompetent and concerned interests have had an opportunity to participate. The proposed code or standard was madeavailable for public review and comment that provides an opportunity for additional public input from industry, acad
6、emia,regulatory agencies, and the public-at-large.ASME does not “approve,” “rate,” or “endorse” any item, construction, proprietary device, or activity.ASME does not take any position with respect to the validity of any patent rights asserted in connection with anyitems mentioned in this document, a
7、nd does not undertake to insure anyone utilizing a standard against liability forinfringement of any applicable letters patent, nor assume any such liability. Users of a code or standard are expresslyadvised that determination of the validity of any such patent rights, and the risk of infringement o
8、f such rights, isentirely their own responsibility.Participation by federal agency representative(s) or person(s) affiliated with industry is not to be interpreted asgovernment or industry endorsement of this code or standard.ASME accepts responsibility for only those interpretations of this documen
9、t issued in accordance with the establishedASME procedures and policies, which precludes the issuance of interpretations by individuals.No part of this document may be reproduced in any form,in an electronic retrieval system or otherwise,without the prior written permission of the publisher.The Amer
10、ican Society of Mechanical EngineersThree Park Avenue, New York, NY 10016-5990Copyright 2006 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.Copyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted wi
11、thout license from IHS-,-,-CONTENTSForeword ivCommittee Roster . viSummary of Changes viiIntroduction 11 Scope 12 Reference to Other Codes 13 Intent 14 Definitions 25 General Safety Standards 66 Specific Safety Standards 9iiiCopyright ASME International Provided by IHS under license with ASME Not fo
12、r ResaleNo reproduction or networking permitted without license from IHS-,-,-(06) FOREWORDThe first edition of the Safety Standard for Conveyors, Cableways, and Related Equipmentwas sponsored by the National Conservation Bureau and the American Society of MechanicalEngineers. It was approved by the
13、American Standards Association (now known as the AmericanNational Standards Institute, Inc.) as American Standard B20.1-1947.In 1950, the Sectional Committee B20 was reorganized under the sponsorship of the AccidentPrevention Department of the Association of Casualty and Surety Companies and the Ame
14、ricanSocietyofMechanicalEngineers.FourSubcommitteeswereformedtomakespecificrecommenda-tions for revisions. These were:Subcommittee No. 1 Scope and IntentSubcommittee No. 2 Nomenclature and DefinitionsSubcommittee No. 3 Portable ConveyorsSubcommittee No. 4 Conveyors in GeneralSection 5, Definitions,
15、was based on the conveyor industry dictionary, Conveyor Terms andDefinitions, as prepared by the Technical Committee (now the Engineering Conference) of theConveyor Equipment Manufacturers Association (CEMA).The second edition of this Standard, dated April 1955, was submitted in draft form to theSec
16、tionalCommitteeforapprovalanddistributedtoindustryingeneralforcriticismandcomment.Approval was then given by the Sectional Committee, the sponsors, and the American StandardsAssociation.TheStandard wasdesignatedasAmerican StandardB20.1-1957onDecember 4,1957.In 1967, the third edition of the Safety S
17、tandard for Conveyors and Related Equipment wassubmitted in draftform to representatives ofindustry for comment. It wassubsequently approvedby the Sectional Committee, the sponsors, and the American National Standards Institute forissuance as American National Standard B20.1-1972 on February 17, 197
18、2.ThefourtheditionoftheSafetyStandardforConveyorsandRelatedEquipmentwasundertakenin 1973 to assist the Office of Safety and Health Standards, U.S. Department of Labor, whichindicated interest in the Standard.A change in format from a specification standard to a performance standard was deemednecessa
19、ry. Simply stated, the Standard describes what end result should be achieved without thelimiting specification usually given by a design and without the inclusion of finite materialselection or dimensions.The fourth edition was subsequently approved by the B20 American National StandardsCommittee, t
20、he Secretariat, and the American National Standards Institute for issuance as Ameri-can National Standard B20.1-1976 on June 14, 1976.In accordance with the policy of the American National Standards Institute, Inc., the B20Committee began working on a revision of B20.1-1976 in February 1980. The fif
21、th edition wasapproved by the B20 Committee, the sponsor (ASME), and the American National StandardsInstitute for issuance as American National Standard B20.1-1984 on March 13, 1984.Pertheproceduresoutlinedandimplementedinthefifthedition,thesixtheditionwasapprovedby the B20 Committee, the sponsor (A
22、SME), and the American National Standards Institute forissuance as American National Standard B20.1-1987 on March 11, 1987. The seventh edition wasapproved for issuance as an American National Standard on March 26, 1990. The eighth editionwas approved for issuance as an American National Standard on
23、 August 9, 1993.The ninth edition was a compilation of changes occurring in the 1993 edition, B20.1a-1994, andB20.1b-1995. It was approved for issuance as an American National Standard on May 23, 1997.The 2000 edition was a compilation of changes from the B20.1a-1997 and B20.1b-1998 addenda.It was a
24、pproved for issuance as an American National Standard on December 14, 2000.Following approval by the B20 Committee and ASME, and after public review, ASME B20.1-2003 was approved by the American National Standards Institute on October 9, 2003. The 2003edition was a revision to B20.1-2000.ivCopyright
25、 ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ASME B20.1-2006 was approved by the American National Standards Institute on September7, 2006. This 2006 edition is a revision to B20.1-2003. This Standard s
26、hall become effective 1 yearfrom the date of issuance.Safety standards for mechanical power apparatus are published in ANSI/ASME B15.1-1996(Safety Standard for Mechanical Power Transmission Apparatus). Safety standards for lockoutand tagout procedures are published in ANSI Z244.1-1982 (R1993) (Safet
27、y Requirements for LockOut/Tag Out of Energy Sources) and OSHA Standard Number 29 CFR 1910.147 “The Controlof Hazardous Energy (Lockout/ Tagout).” The use of recommendations and guidelines as pub-lished by the Conveyor Equipment Manufacturers Association (CEMA) “Safety Label BrochureNo. 201” and “Gu
28、idelines for Vertical Reciprocating Conveyors” published by the ConveyorProductSectionofTheMaterialHandlingInstituteinconjunctionwithASMEB20.1isencouraged,as are the above mentioned standards.The values stated within this Standard are in both SI and U.S. customary units, with the latterplaced in par
29、entheses. These units are essentially interchangeable, and, depending on the country,as well as industry preferences, the user will determine which values are to be regarded as thestandard.Safetycodesandstandardsareintendedtoenhancepublicsafety.Revisionsresultfromcommit-teeconsiderationoffactorssuch
30、astechnologicaladvances,newdata,andchangingenvironmentaland industry needs. Revisions do not imply that previous editions were inadequate.vCopyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ASME STAN
31、DARDS COMMITTEE B20Safety Standard for Conveyors and RelatedEquipment(The following is a roster of the Committee at the time of publication of this Standard.)STANDARDS COMMITTEE OFFICERSR. W. Parry, ChairJ. J. Galante, Vice ChairR. Mohamed, SecretarySTANDARDS COMMITTEE PERSONNELT. M. Berger, Martin
32、Sprocket however,they should not contain proprietary namesor information.ASME procedures provide for reconsideration of anyinterpretation when or if additional information thatmight affect an interpretation is available. Further, per-sons aggrieved by an interpretation may appeal to thecognizantASME
33、committee.ASME doesnot“approve,”“certify,” “rate,” or “endorse” any item, construction,proprietary device, or activity.4 DEFINITIONS1actuator: a device that initiates the action of controls orcontrollers and is manually operated. The actuator maybe a push button, toggle switch, foot pedal, hand leve
34、r,hand-set timer, or any other device that performs thedescribed function.antirunaway: asafetydevicetostopadecliningconveyorandthuspreventmovingawayintheeventofamechani-cal or electrical failure.apron pan: one of a series of overlapping or interlockingplates or shapes that, together with others, for
35、m theconveyor bed.automatically controlled: describes the operation be theaction of a mechanism that is initiated by some imper-sonal influence, such as a conveyor that is started by alow-level bin indicator.backstop: a mechanical device to prevent reversal of aloaded conveyor under action of gravit
36、y when forwardtravel is interrupted.bed:(a) that part of a conveyor upon which the load orcarrying medium rests or slides while being conveyed(b) in bulk material conveyors, the mass of materialbeing conveyedbelt idler: a roller or series of rollers that supports thebelt of a belt conveyor.1Many def
37、initions were extracted from the latest revision ofConveyor Terms and Definitions, Book No. 102, prepared by theEngineering Conference of the Conveyor Equipment Manufactur-ers Association, Washington, DC 20850. For definitions of termsother than those defined in para. 4, refer to this publication.2b
38、elt tripper: a device incorporating a system of pulleysthat causes the conveyor belt to discharge material atone or more points along the length of the conveyor.boom: a cantilevered member or structure that may behinged, fixed, or pivoted.brake: a friction device for slowing down conveyor com-ponent
39、s, bringing conveyor equipment to a controlledstop, holding traveling or traversing equipment in aselected location, preventing reverse travel, and control-ling overspeed due to the action of gravity.bunker: a large bin or compartment for storage of bulkmaterials.car unloader: a type of conveyor cha
40、racterized by a shal-low, horizontal loading section that enables it to receiveand unload material from hopper bottom cars withoutrequiring a pit or other excavation.carrier:(a) a device attached to or hung from trolleys to sup-port the load(b) thereceptacleinwhichobjectsareplacedfortrans-mittal thr
41、ough a conveying system(c) themovingpartofaverticalorinclinedreciprocat-ing conveyor that supports the loadchain: a series of links pivotally joined together to form amediumforconveyingortransmittingmotionorpower.General classes of chain common to conveyors aredetachable, pintle, combination, roller
42、, rivetless, coil,inverted tooth, and bar link chains.chute: a trough through which bulk materials or objectsare directed and lowered by gravity. The trough may beopen or enclosed, straight or curved.control: the system governing the starting, stopping,direction of motion, acceleration, speed, retar
43、dation,identification, and function of the moving member in apredetermined manner.controller: an electromechanical device or assembly ofdevices for starting, stopping, accelerating, or decelerat-ing a drive or serving to govern in some predeterminedmanner the power delivered to the drive.conveying m
44、edium: that portion of a conveyor that movesor carries materials, packages, or objects.conveyor: a horizontal, inclined, or vertical device formoving or transporting bulk material, packages, orobjects in a path predetermined by the design of thedeviceandhavingpointsofloadinganddischarge,fixedorselec
45、tive.Includedareskiphoistsandverticalrecipro-cating and inclined reciprocating conveyors. Typicalexceptions are those devices known as industrial trucks,tractors, trailers, tiering machines (except pallet loadtierers), cranes, hoists, power shovels, power scoops,bucketdraglines,trenchers,platformele
46、vatorsdesignedto carry passengers or an operator, manlifts, movingCopyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ASME B20.1-2006walks, moving stairways (escalators), highway or rail-wayvehicles,c
47、ableways,tramways,dumbwaiters,pneu-matic conveyors, robots, or integral machine transferdevices.conveyor belt: a belt used to carry materials and transmitthe power required to move the load being conveyed.conveyor screw: the material-propelling medium of ascrew conveyor generally consisting of an as
48、sembly ofhelical flights mounted on a rotating pipe or shaft.conveyor, apron: a conveyor in which a series of apronpans forms a moving bed.conveyor, belt: an endless fabric, rubber, plastic, leather,or metal belt operating over suitable drive, tail end, andbend terminals and over belt idlers or slid
49、er bed forhandling bulk materials, packages, or objects placeddirectly upon the belt.conveyor, bucket: anytypeofconveyorinwhichthemate-rial is carried in a series of buckets.conveyor, chain: any type of conveyor in which one ormorechainsactastheconveyingmedium;aBritishtermfor trolley conveyor.conveyor, declining: a conveyor transporting down aslope.conveyor, electrified monorail:
