Quality, Our Most Important Product
(800) 243-9327
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Quality, Our Most Important Product (800) 243-9327
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CoilWeb™ Vibrating Conveyors[CoilWeb™ Pictures and Information] Controlled VibrationOn Webster CoilWeb™ Vibrating Conveyors, the amplitude, direction and frequency of the vibrations are selected and controlled to give a gentle hopping actions to the material being conveyed, as well as shakeout action for screening. The combination of these factors can be chosen to effect conveying speeds or operational conditions such as minimizing material degradation, wear on the conveying surface, noise levels of the material on the pan and drive forces. Natural FrequencyThe spring rate of the coil springs, which support the pan are selected so that the natural or resonant frequency of the pan-spring system is very near the operating frequency of the drive. The result is that most of the power required to vibrate the pan is alternately stored and released by the pan-spring system. This results in minimum drive force requirements, as the drive is only required to overcome additional forces. By uniform distribution of the spring assemblies, the reaction force is spread over the length of the conveyor. Spring AssembliesThe coil springs used in the CoilWeb™ vibrating conveyors are fabricated of alloy steel. Each spring assembly location includes a pair of rocker arms to control the direction of flow. A rubber bushing is located at both ends of the stabilizers for a non-lubricated joint. This super duty design of coil spring assemblies, along with the heavy duty pan construction is built to operate in such harsh conditions as unfavorable environment and heavy material loading, providing long service life without maintenance. Semi-Positive Soft Start DriveHeavy duty self aligning bearing support an integrally machined eccentric shaft and connect the shaft to a connecting rod that is spring mounted to the pan. This drive-spring arrangement substantially reduces the starting torque requirements to turn the ECC. Shaft. Once the conveyor reaches operating speed, very little drive force is required to maintain the resonant frequency stroke, so there is virtually no relative deflection between the connecting rod and the drive-spring system. Standard or Balanced ConveyorsThe standard CoilWeb™ vibrating conveyor has a relatively small dynamic reaction, and should be installed on a foundation or support structure designed accordingly at or below grade. For installations requiring a minimum transmission of the dynamic reaction to the supports, a selection of balanced, isolated or balanced/isolated construction can be employed. In balanced construction a balancing weight is driven by the eccentric drive 180 out of phase to the pan. This balancing weight is equal to the pan weight and has a duplicate pan-spring assembly system. Being 180º out of phase results in two equal and opposite dynamic reactions that cancel out the majority (80% to 95%) of the dynamic reaction to the supports. In the isolated construction, a relatively short length standard CoilWeb™ vibrating conveyor is equipped with a heavy moving inertia base and is mounted to the support structure on soft isolation springs. This type of construction (less complex than balancing) reduces the reaction forces by 80% to 90%. A combination balanced/isolated can be utilized to provide the highest in isolation efficiency. Standard and High Temperature ConstructionThe Webster CoilWeb™ vibrating conveyors are also available in two construction types, dependent on standard type of construction is used for materials whose temperature is no higher than 200ºF. For hotter materials, a high temperature or heat expansion type is used. The heat expansion type is designed so that the pan is free to expand or contract independently from the spring and drive systems. This heat expansion pan is also designed to reduce heat conduction to the spring and drive systems. [CoilWeb™ Pictures and Information]
Conveyors, Coil Conveyors, Coil Vibrators, Convcoil, Conv CoilWeb, Coil Spring Conveyors, Balance Conveyors, Balance Coil Conveyors, Balance Comveyor, Dynamic Balance Conveyors, Isolated Conveyors, Screeners, Shakers, Unbalance Conveyors, Vibrators, Vibrating Conveyors, Vibrating Screeners |
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