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Positive-drive Spiral Conveyor And Belt

A screw conveyor and conveyor technology, applied in the field of conveyors, can solve problems such as detachment

Active Publication Date: 2015-01-07
LAITRAM LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But one problem with positive drive helical systems is the crisp engagement and disengagement of the belt with the drive structure on the cage

Method used

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  • Positive-drive Spiral Conveyor And Belt
  • Positive-drive Spiral Conveyor And Belt
  • Positive-drive Spiral Conveyor And Belt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0072] figure 1 A screw conveyor is schematically shown in . The screw conveyor comprises a drive tower 10 in the form of a cylindrical drum or cage, driven to rotate about a vertical axis 12 . The rotating tower has a plurality of parallel, generally vertical drive members 14 regularly spaced around its perimeter 16 . Each drive member extends in length between the bottom 18 and the top 19 of the tower. The conveyor belt 20 follows a multi-level helical path around the tower. The path is defined by a screw carryway or by a carryway at the bottom and stacker plates mounted on belts. The inner edge of the belt positively engages the drive members which drive the belt upwards as the tower rotates. The belt travels around the different receiving, idle and feeding sprockets 22, which create a path back from the outlet at the top of the tower to the inlet at the bottom. Tower 10 is mounted at its base to a base 24 and is turned by an electric motor and gears (not shown).

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PUM

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Abstract

A spiral conveyor for positively driving a conveyor belt (20) along a helical path. The spiral conveyor includes a rotating cylindrical tower (10) with parallel drive members (14) extending from the bottom to the top of the tower on its periphery. Each drive member includes an outwardly protruding ridge (28) that varies in height from the bottom to the top of the tower. The variations in height facilitate the belt's entry onto and exit from the tower and robust, positive driving engagement with the inside edge of the belt along the majority of its path along the tower. In another version, a conveyor belt has teeth (62) with guide surfaces (78, 79) at the inside edge of the belt. The teeth guide the drive members between belt rows into driving engagement with drive faces at the inside edge of the belt.

Description

[0001] This application is a divisional application of the application dated July 8, 2011, the application number is 201180033770.0, and the invention name is "forced drive screw conveyor and belt". technical field [0002] The present invention relates generally to power-driven conveyors, and more particularly to screw-type conveyors in which the conveyor belt is positively driven in a helical path around a rotating drive tower. Background technique [0003] Conveyor belts are commonly used to convey items such as food and other materials through cooled or heated environments. Screw conveyors, in which the conveyor belt follows a helical path that wraps around a central tower, drum, or cage, are used in refrigerators and ovens to provide long conveyors with a small footprint path. [0004] Some screw conveyors are constructed with a helical track supported on a central, non-rotating tower. Its conveyor belt is driven around the helical track by drive sprockets at a single...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65G17/08B65G21/18
CPCB65G21/18B65G15/30B65G17/086B65G17/08B65G2812/02277
Inventor 卡斯帕尔·费德·塔斯马大卫·W·博格尔
Owner LAITRAM LLC
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