ANSI CEMA 404-2003 pdf download Unit Handling Conveyors
Mechanical Elements of Chain Driven Live Roller
Chain – A series of links pivotally joined together to form a medium for conveying or transmitting motion or power.
Riveted: A chain in which the ends of the pins are “headed” and/or swagged or riveted so that the chain cannot be disassembled without cuffing off the pin.
Roller: A chain having a roller encircling the barrel or bushing of each joint.
Tension: The actual pull existing at any point in a chain.
Link: A chain unit of one pitched length.
Conveyor Bed – Carrying rollers that support the load while it is being conveyed (see also “Width, Effective Conveyor”).
Differential Curve – A curved section of roller conveyor having a conveying surface of two or more concentric rows of rollers.
Drive – An assembly of the necessary structural, mechanical and electrical parts which provide the motive power for a conveyor.
Frame Rails – Members that support the conveying components of non-powered or powered roller conveyors. Rollers are the supported components on roller conveyors.
Guard – A covering or barricade for safety purposes such as gear, chain, or nip guards.
Holddown – A wear-member located over the driving (top) side of chain and sprockets to prevent chain disengagement from the sprocket teeth. Used on continuous chain construction chain driven live roller conveyor.
Horizontal Curve – A curved roller conveyor section used to change the direction of travel.
Idler – A pulley, sheave, sprocket, or wheel around which a chain passes in changing direction of travel; chain-supporting sprocket.
Intermediate Drive – A drive that transmits motive power to a conveyor at a point other than the terminals.
Live Roller Conveyor – A series of rollers over which objects are moved by the application of power to all or some of the rollers.
Plates, Fill-in – Closely fitted plates positioned between the rollers of powered or non-powered roller conveyors.
Return Run – That portion of the chain which returns from the discharge to the loading end of a conveyor.
ANSI CEMA 404-2003 pdf download
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