Dual-Layer Hopper Body for Fines Separation and Lower Vehicle Weight
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Solution Overview
Problem
Existing truck hopper bodies for mineral transportation are heavy, energy-intensive, and inefficient due to the need to transport both target minerals and waste fines, necessitating a solution that reduces weight and segregates fines from the load.
Innovation Solution
A dual-layer hopper body structure with an inner apertured network base and side walls, supported by an outer shell, allowing fines to pass through and be segregated from the target mineral, reducing the overall weight and maximizing the target mineral load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a solid thick sheet steel body is used to absorb impact loads during material loading, then the strength and durability of the hopper body is improved, but the weight of the vehicle increases significantly
Solution Approach 1:
The hopper body is constructed using an apertured network structure (wire mesh or similar porous material) instead of solid thick steel plates. This porous structure maintains sufficient strength to absorb impact loads during material loading while dramatically reducing the overall weight of the hopper body, thereby resolving the contradiction between strength and weight.
Solution Approach 2:
The invention employs composite construction combining the apertured network structure with appropriate support elements and coating layers. This composite approach provides the necessary mechanical strength and impact absorption capabilities while using lighter materials compared to traditional solid steel construction, thus reducing vehicle weight without compromising hopper body strength.
2Productivity
If a conventional single-layer hopper body is used, then the structure is simple, but it cannot effectively separate fines from target mineral and transports unnecessary waste material
Solution Approach 1:
The hopper body is segmented into multiple functional zones: an inner hopper volume for holding target mineral, an intermediate volume for separating fines, and an outer shell for structural support. This segmentation allows the system to effectively separate fines from target mineral through the apertured network structure, improving mineral transport efficiency by removing unnecessary waste material, while the modular segmented design keeps the overall structure relatively simple.
3Use of energy by moving object
If the hopper body is made lighter using apertured network structure, then the vehicle weight is reduced and energy consumption decreases, but the structural strength may be compromised
Solution Approach 1:
The apertured network structure (porous material) is specifically designed to provide sufficient strength to absorb impact loads during material loading while maintaining a lightweight construction. The porous structure distributes impact forces across its network, maintaining adequate strength capacity while significantly reducing weight and energy consumption compared to solid steel construction.
Solution Approach 2:
The apertured network structure is designed beforehand to cushion and absorb impact loads that occur during material loading. The porous structure acts as a shock-absorbing medium, distributing impact forces across its network to protect the hopper body from damage while maintaining lightweight construction, thus preventing strength compromise before failures can occur.
Data Source
AI summary
A body for a material conveying vehicle is described. The body has an inner base configured to engage directly upon a chassis of a material conveying vehicle; inner side walls extending upwardly from the inner base to define with the inner base an inner volume for material to be conveyed; an outer base and outer sidewalls comprising continuous sheet material disposed around the inner base and inner side walls. The inner base comprises a rigid apertured network structure having a raised profile that projects away from the outer base, and the inner side walls comprise apertured network structures spaced from the outer sidewalls, thereby defining an intermediate volume into which material smaller than the apertures in the said network structures may pass in use; and the intermediate volume is provided with an outlet system from which material therein may be removed.