CEMA 601-1995 OVERHEAD TROLLEY CHAIN CONVEYORS.pdf

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1、CEMA Standard 601-1995 - PDF Version 2003Unit Handling ConveyorsOVERHEAD TROLLEY CHAIN CONVEYORSCEMASTANDARDNO. 601-1995CEMA 601-1995PDF Version - 2003ISBN 1-891171-50-XConveyor EquipmentManufacturers AssociationFor Information on Company Membershipvisit the CEMA Web Site athttp:/www.cemanet.orgConv

2、eyorChainCEMA ORGANIZATIONAL CHARTControls PalletizersMeet in March and/or SeptemberConferenceStrategic PlanningInsuranceMeetingsMembershipPublic RelationsStatisticsSafety SteeringFinance and BudgetPast PresidentsBulk HandlingSectionCommitteesUnit HandlingSectionEngineering ConferenceConveyor ChainP

3、erformance TerminologyUnit Handling StandardsIdlersPulleysBeltSystemsScrewConveyorsBeltManualAccessoriesSafety ControlsTerms andDefinitionsInternationalStandardsMeets Each JuneScrewConveyorsBulk HandlingComponentsand SystemsGeneral Bulk Handling SectionBulkAccessoriesUnit Handling Conveying SectionC

4、OMMITTEES BOARD OF DIRECTORS OFFICERSSAFETY NOTICEThe Conveyor Equipment Manufacturers Association has developed Industry Standard Safety Labelsfor use on the conveying equipment of its member companies.The purpose of the labels is to identify common and uncommon hazards, conditions, and unsafepract

5、ices which can injure, or cause the death of, the unwary or inattentive person who is workingat or around conveying equipment.The labels are available for sale to member companies and non-member companies.A full description of the labels, their purpose, and guidelines on where to place the labels on

6、 typicalequipment, has been published in CEMAs Safety Label Brochure No. 201. The Brochure is availablefor purchase by members and non-members of the Association. Safety Labels and Safety LabelPlacement Guidelines, originally published in the Brochure, are also available free on the CEMAWeb Site at

7、http:/www.cemanet.org/Safety/PLEASE NOTE: Should any of the safety labels supplied by the equipment manufacturer becomeunreadable for any reason, the equipment USER is then responsible for replacement and locationof these safety labels.Replacement labels and placement guidelines can be obtained by c

8、ontacting your equipment supplieror CEMA.DISCLAIMER The information provided in this document is advisory only. These recommendations are provided by CEMA in the interest of promoting safety in the work place. These recommendations are general in nature and are not intended as a substitute for a tho

9、rough safety program. Users should seek the advise, supervision or consultation of qualified engineers or other safety professionals. Any use of this document, the information contained herein, or any other CEMA publication may only be made with the agreement and understanding that the user and the

10、users company assume full responsibility for the design, safety, specifications, suitability and adequacy of the system component, or mechanical or electrical device designed or manufactured using this information. The user and the users company understand and agree that CEMA, its member companies,

11、its officers, agents and employees shall not be liable in any manner under any theory of liability for the user or users reliance on these recommendations. The users and the users company agree to release, hold harmless and indemnify CEMA, its member companies, successors, assigns, officers, agents

12、and employees from any and all claims of liability, costs, fees (including attorneys fees), or damages arising in any way out of the use of this information. CEMA and its member companies, successors, assigns, officers, agents and employees make no representations or warranties whatsoever, either ex

13、press or implied, about the information contained in this document, including, but not limited to, representations or warranties that the information and recommendations contained herein conform to any federal, state or local laws, regulations, guidelines or ordinances. CEMA Standard 601-1995 - PDF

14、Version 2003I INTRODUCTION 111 DEFINITIONS FOR TROLLEY CHAIN CONVEYORS 2-5III CONVEYOR COMPONENTS 6Rivetless Chain Dimensions - Drop Forged 6Trolley Dimensions - Vertical Bolts 7Trolley Dimensions - Horizontal Bolts 8Trolley Dimensions - For X-228 Chain 9Trolley Attachment Dimensions 10Trolley Attac

15、hment Dimensions - Bolts Vertical 11Roller Turn Dimensions 12Traction Wheel Turn Dimensions 13IV DESIGN PROCEDURE AND ENGINEERING DATA 14Overhead Trolley Conveyor Symbols 14Typical Trolley Conveyor Installation 15Design Procedure 16-22Types of Drives 23Design Data 23-24Guards 25-26V VERTICAL CURVE D

16、ATA 27Radii 27Compound Vertical Curve 28Chart 29VI PREVENTIVE MAINTENANCE AND INSPECTION PROCEDURE 30Trouble - Probable Cause - Remedy 30-31Lubrication Guide 32Inspection Checklist 33CONVEYOR EQUIPMENT MANUFACTURERS ASSOCIATION6724 Lone Oak Blvd.Naples, Florida 34109Tel: 239-514-3441Fax: 239-514-347

17、0http:/www.cemanet.orgCEMA STANDARD NO. 601-1995Overhead Trolley Chain ConveyorsTABLE OF CONTENTSPageiCEMA Standard 601-1995 - PDF Version 20031SECTION IINTRODUCTIONThe overhead trolley chain conveyor is an extremely flexible material handling means. It is used inpractically every industry worldwide

18、. It can be installed to follow almost any path, changing directionvertically or horizontally. Using multiple drives, a single path can be miles (kilometers) in length.Beyond material transportation in ambient indoor or outdoor environments, typical industrial applicationsof trolley chain conveyors

19、for product processing include:Washing/cleaning/finishingPhosphatizing or similar treatmentsSolvent degreasingPaint strippingBaking/drying up to 525OF (270OC)Prime and finish paintingFreezingCoolingFood HandlingIn certain environments, humans cannot survive or human health is endangered, yet conveyi

20、ng meansare essential. Under many conditions, other types of conveyors are not practical or would not haveacceptable life expectancy. The overhead trolley chain conveyor combines its directional flexibility(horizontal and vertical curve movement) with its tolerance to adverse environments to broaden

21、 itsapplications to user requirements.Each product carrier is especially designed to suit secure handling while providing ease in loading andunloading, whether this is done manually, semi-automatically, or automatically. Further designconsiderations are required where the product is processed and no

22、t merely transported.With adequate part (or carrier) clearance within recommended allowable loading, any type of productmay be transported. Carriers may be in the form of hooks, slings, boxes, racks, trays, baskets, or one ofother numerous configurations to suit the application requirement.The prefe

23、rred conveyor system uses standard components wherever possible in the principal interest ofeconomics (minimum cost). Countless specially designed components are available and are used whererequired. In this event, it is recommended that the manufacturer be consulted.This standard provides basic eng

24、ineering guidelines to enable the proper selection of standard componentsand develop these into a functional conveyor layout. Content is confined to single drive systems ofaverage loading, path configuration, and length.CEMA Standard 601-1995 - PDF Version 20032SECTION IIDEFINITIONS FOR TROLLEY CHAI

25、N CONVEYORSAdjustable Speed Drive - A type of drive designed with a speed changing device by which the speed of theconveyor can be changed.Air-operated Take-up - See Take-up.Antibackup - See Backstop.Antirunaway - A safety device to stop a declining conveyor and thus prevent running away in event of

26、 anelectrical or mechanical failure.Automatic lubricator - A device used to lubricate the chain, trolley wheels, or other conveyor componentsautomatically as they pass.Automatic Take-up - See Take-up.Backstop - A mechanical device to prevent reversal of a loaded conveyor under action of gravity when

27、 forwardtravel is interrupted.Backup Bar - A metal bar used to back up the caterpillar chain of a drive to hold the drive chain dogs in propercontact with the conveyor chain.Backup Rollers - Series of rollers so mounted as to back up the conveyor chain to hold it in proper rela-tion tothe caterpilla

28、r chain dogs.Balanced Drives - Drives so designed that two or more such drives on a single conveyor may be synchronizedto pull predetermined shares of the load.Beam Clamp - A device for gripping the flange of supporting beams or trusses for the purpose of sus-pendingfrom same a structure such as a c

29、onveyor frame or track.Bolt Attachment - See Trolley Attachments.Bracing - Diagonal or horizontal members used to prevent swaying in conveyor supporting structure.Caterpillar Chain - A short endless chain on which dogs or teeth are spaced to mesh with and move, or bemoved by, a conveyor chain.Caterp

30、illar Chain Dog - A dog or tooth attached to a caterpillar drive chain to provide the driving contact withthe conveyor chain.Caterpillar Drive - See Drive.Caterpillar Take-up Sprocket - The non-driving sprocket of a caterpillar drive.Center Link - The loop-shaped link of rivetiess chain which provid

31、es the bearing surfaces for the pins andpermits passage of the trolley load support members through the chain.Chain Pin - The pin that is used to connect succeeding links of a chain about which the links pivot.CEMA Standard 601-1995 - PDF Version 20033Change of Elevation - Vertical distance between

32、the upper horizontal track of a vertical curve to thecorresponding point on the lower horizontal track.Clevis Pin Attachment - See Trolley Attachments.Compound Vertical Curve - See Vertical Curve.Conveyor Guard - See Guard.Counterweighted Take-up - See Take-up.Drive -Caterpillar Drive - A drive equi

33、pped with a caterpillar chain to provide the propelling contact with theconveyor chain.Sprocket Drive - A conveyor chain driving unit using a sprocket to transmit power to the chain, locatedat a turn of approximately 90 degrees or more.Drive Frame - The structure which supports the drive shaft assem

34、bly and machine parts and which contains orsupports the motive power or supports the assembly to which the motive power is connected.Drive Shaft - Main driving shaft on which the conveyor sprocket is mounted.Drive Sprocket - Sprocket of a caterpillar drive or of a sprocket drive.Drop - The vertical

35、distance from the bottom of the track to centerline of the chain.Guard -Conveyor Guard - A structure mounted below the conveyor path to protect personnel below.Finger Guard - Enclosure around trolleys and chain to protect personnel from falling parts.Machinery Guard - A covering or barricade for saf

36、ety purposes such as gear, chain, and V-belt guards.Hanger Steel - Angles or rods by which a conveyor is hung from supports above.Idler Attachment - See Trolley Attachments.Link - A chain unit of one pitch length.Load Bar - A device to distribute a load over two or more trolleys.Machinery Guard - Se

37、e Guard.Multiple Drives - Two or more motorized and load-sharing drives applied to a single conveyor for the pur-poseof reducing the chain tension in any given section.Pendant Attachment - See Trolley Attachments.Rivetless Chain - A completely forged, heat-treated chain of pins, side links, and cent

38、er links which can beassembled or disassembled without the use of tools.CEMA Standard 601-1995 - PDF Version 20034RollerTurn - A series of vertical rollers mounted in a frame to guide a conveyor chain around a horizontal curve.Roller Turn Roller - The vertical roller with integral bearings as used i

39、n the roller turn.Screw Take-up - See Take-up.Side Link - That portion of the chain which longitudinally connects joint portions at each end of the cen-ter linkwith chain pins.Spring Take-up - See Take-up.Sprocket Drive - See Drive.Superstructure - Members to which the hanger steel is connected and

40、which transfer the load to the buildingmembers.Take-up - The assembly of the necessary structural and mechanical parts which provides the means to adjustthe length of chain to compensate for stretch, shrink, or wear and to maintain proper tension.Air-operated Take-up - A take-up mechanism where adju

41、stments are made automatically by an aircylinder.Automatic Take-up - A take-up mechanism where adjustments are made automatically.Counterweighted Take-up - A take-up mechanism where the adjustment is made automatically by thepotential energy of weights.Screw Take-up - A take-up mechanism having prov

42、ision for manual adjustment by one or morescrews.Spring Take-up - A take-up mechanism where adjustments are made automatically by the potentialenergy of springs.Track - The I-beam section on which trolley wheels roll while being propelled.Traction Wheel - A smooth, straight face wheel without dogs o

43、r teeth.Traction Wheel Turn - See Wheel Turn.Trolley - An assembly of two half-trolleys (each with wheel, bearing, and bracket) and an attachment. It is usedto support and move suspended loads and to carry the load connecting and conveying chain.Trolley Attachments -Bolt Attachment - A trolley attac

44、hment having a threaded rod projection for attaching a load bar orvarious objects.Clevis Attachment - A forked or clevis type trolley attachment.Idler Attachment - An attachment used to complete the assembly of a nonload carrying trolley.Pendant Attachment - A single bar trolley attachment projectin

45、g through the chain having a single holefor supporting loads.CEMA Standard 601-1995 - PDF Version 20035Trolley Brackets - Drop forged, cast, or pressed steel members to which the trolley wheels are attachedwith provision for connecting to the chain.Trolley Conveyor - A series of trolleys supported f

46、rom an overhead track and connected by an endlesspropelling chain with load usually suspended from the trolley. Trolley conveyors may be designed for single ormultiple plane operation.Trolley Wheel - The circular member with integral bearing mounted to the trolley bracket.Full Complement - Maximum n

47、umber of balls without a retianer.Retainer - Balls are separated by a retainer for low friction.Vertical Curve -Compound Vertical Curve - An assembly of two single vertical curves with necessary connecting trackto accomplish a change in elevation.Single Vertical Curve - A section of track bent in a

48、desired curve to change the direction of a conveyorin the vertical plane.Wheel Turn - A structure having a traction wheel which guides a conveyor chain around a horizontal curve.CEMA Standard 601-1995 - PDF Version 2003A - Nominal pitchB - Height of center linkC - Width of chainD - Height of center

49、link at flatE - Overall length of pinF - Diameter of pinG - Length of pin between headsH - Length of flat on center linkI - Inside width of center link* - Actual pitch varies from nominal.Average length of production chainshown above.SECTION IIICONVEYOR COMPONENTSRIVETLESS CHAIN DIMENSIONSDrop ForgedChainABc0EFGHI* max max min min minX-228 2 15/32 11/16 3/8 1-1/8 1/4 53/64 1-1/16 5/16X-50-6 (50) (11.90) (17.46) (9.53) (28.57) (6.35) (21.03) (26.98) (7.94)X-348 3 3/4 1-3/32 1/2 1-27/32 1/2 1-9/32 1-5/8 9/16X-75-13 (75) (19.05) (27.78) (12.70) (46.83) (12.70) (32.54) (41.27