Conveyor Drum Jacket Segmentation for Deformation Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Belt conveyor driving, deflecting, and tensioning drums face high deformation under strain, leading to potential crack formation and increased costs due to the use of expensive spherical roller bearings, which are necessary to compensate for these deformations.
Innovation Solution
Designing the drums with a one-piece hollow cylinder drum jacket or a center body and two bearing pieces at both ends, incorporating large diameter bearings and bearing shields, and using gearless or electromechanical drives to enhance stability and reduce deformation, while allowing for easy assembly and maintenance through detachable connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a classic driving drum design with drum shaft and drum base is used, then the structure can support the driving function, but high deformation occurs under strain leading to crack formation and requiring expensive spherical roller bearings
Solution Approach 1:
The drum is divided into a drum jacket and a drum base as separate components. The drum jacket is designed as a hollow cylinder with optimized wall thickness to resist deformation, while the drum base provides mounting functionality. This segmentation allows each component to be optimized for its specific function, reducing overall deformation and eliminating the need for expensive spherical roller bearings.
Solution Approach 2:
The wall thickness of the drum jacket is increased and its diameter is optimized to reduce deformation under strain. By changing these geometric parameters, the drum jacket can withstand high forces without excessive deformation, preventing crack formation and reducing bearing load variations.
2Stability of the object's composition
If the drum jacket diameter and wall thickness are increased to reduce deformation, then stability improves, but the weight and material consumption increase
Solution Approach 1:
By separating the drum into a drum jacket and drum base, the structural requirements for stability can be met by optimizing the drum jacket's wall thickness and diameter, while the drum base remains a separate, lighter component. This avoids the need for a uniformly heavy construction throughout the entire drum assembly.
Data Source
AI summary
The invention relates to the design of driving, deflecting, and tensioning drums for conveyor belts, comprising a one-piece drum jacket or a drum jacket (1) comprising a center drum body (10) and two bearing pieces (11, 12) attached to both sides of the center drum body. All three components of the drum jacket (1) are provided with flanges on the sides facing each other and screwed together at said flanges. Each of the two bearing pieces (11, 12) has an annular bearing seat for rolling-element bearings on the outside. Each of the two rolling-element bearings is accommodated on the outside by a bearing shield (3, 4), wherein the one bearing is a fixed bearing and the other bearing is a floating bearing. In a first embodiment, a direct drive (2), the rotor of which directly drives the drum jacket (1), is provided as a drive. The important advantage provided by the design of the drums according to the invention is that high stability is achieved due to the large diameters of the drum jackets (1) and the large bearings used together with the bearing shields (3, 4).