Modular Screening Drum Frame with U-Profile Ribs
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Solution Overview
Problem
Existing screening drum frames face challenges in achieving stability and dimensional accuracy while being optimally suited for transport, particularly road transport, with existing technologies failing to balance these requirements effectively.
Innovation Solution
A modular screening drum frame design comprising U-profile longitudinal ribs, T-profile transverse ribs, and outer rings, connected via screw connections, allowing for easy assembly and disassembly into components that can be transported efficiently, with features like transverse webs for increased torsional rigidity and adjustable rib ring spacing for varying drum length.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the screening drum frame is designed as a modular structure with multiple components for easy transport, then transport efficiency is improved, but assembly complexity increases
Solution Approach 1:
The screening drum frame is divided into multiple modular components including outer rings, longitudinal ribs, transverse ribs, and field sections. Each component can be independently manufactured and transported separately, then assembled on-site using standardized connecting means such as bolts and fasteners. This segmentation enables efficient transport while maintaining manageable assembly complexity through standardization.
2Volume of moving object
If the screening drum frame is disassembled into multiple components for transport, then transport volume is reduced, but structural stability during assembly may be compromised
Solution Approach 1:
Critical structural components such as outer rings and longitudinal ribs are designed with pre-integrated connecting features and attachment points. These preliminary structural elements provide the basic framework stability before field sections and screening elements are added during assembly. The pre-assembled components ensure structural integrity is established early in the assembly process.
Solution Approach 2:
Multiple structural functions are merged into integrated components. For example, outer rings serve both as structural frames and as mounting surfaces for longitudinal ribs and field sections. Transverse ribs combine structural support with attachment features for screening elements. This merging reduces the number of separate parts while maintaining stability.
3Ease of operation
If standardized connecting means are used for assembling components, then ease of assembly is improved, but manufacturing precision requirements increase
Solution Approach 1:
Connecting features such as bolt holes, fastener receptacles, and attachment surfaces are designed with localized precision requirements concentrated at specific critical interfaces. Non-critical areas use standard tolerances, while only the connecting interfaces require high manufacturing precision. This approach ensures easy assembly through standardized connectors without requiring all components to be manufactured to high precision.
Data Source
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AI summary
A sieve drum frame (10) comprising a left outer ring (16), a right outer ring (17), a plurality of longitudinal ribs (18), and a plurality of transverse ribs (19), wherein the longitudinal ribs (18) extend continuously from the left outer ring (16) to the right outer ring (17), wherein the longitudinal ribs (18) are formed as U-profiles, wherein the longitudinal ribs (18) are connected to the outer rings (16, 17) by connecting means (20), and wherein each transverse rib (19) connects two longitudinal ribs (18) at its two ends (21, 22) and is connected to these by connecting means (20). (Figure 4)