Hungry Board Assembly with Spring Fastening
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Solution Overview
Problem
Traditional hungry boards in the mining and excavation industries are heavy, prone to damage, labor-intensive to repair, and costly due to the need for welding and specialized equipment, posing safety and environmental concerns, while also limiting payload capacity.
Innovation Solution
A hungry board assembly made of non-ferrous materials with resilient members and a fastening system using anchor members and springs to absorb impact, allowing for easy attachment and detachment, reducing weight and maintenance needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional steel hungry boards are welded to the truck body, then structural strength is improved, but weight increases and payload capacity decreases
Solution Approach 1:
The patent changes the material parameter from steel to aluminum alloy, which has a lower density and weight. This parameter change maintains structural strength while reducing the weight of the hungry board, thereby increasing payload capacity without compromising structural integrity.
Solution Approach 2:
The patent uses aluminum alloy as a composite material that provides both strength and weight reduction. The aluminum alloy hungry board combines the advantages of light weight with sufficient structural strength, resolving the contradiction between strength and weight.
2Reliability
If traditional steel hungry boards are used, then durability is improved, but resistance to rock and material impact worsens
Solution Approach 1:
The patent changes the material parameter from steel to aluminum alloy, which has different mechanical properties including higher toughness and resistance to impact damage. The aluminum alloy can better absorb and distribute impact forces from rocks and materials, reducing the harmful effects of impact while maintaining durability.
3Strength
If welded hungry boards are used, then structural integrity is improved, but ease of repair worsens
Solution Approach 1:
The patent segments the hungry board into replaceable sections with standardized connection structures. This segmentation allows damaged sections to be quickly removed and replaced without requiring complex welding repairs, significantly improving ease of repair while maintaining structural integrity through standardized connections.
Solution Approach 2:
The patent adopts a replaceable hungry board design where damaged boards can be quickly swapped out for new ones, rather than attempting to repair them. This approach treats the hungry board as a consumable component that is replaced rather than repaired, improving ease of repair and reducing maintenance time.
4Quantity of substance
If traditional hungry boards are used, then payload capacity is improved, but maintenance time and costs worsen
Solution Approach 1:
The patent segments the hungry board into standardized, interchangeable sections that can be quickly replaced. This segmentation enables rapid maintenance operations where damaged sections are swapped out without requiring extensive repair work, significantly reducing maintenance time and allowing the truck to return to service faster, thereby preserving payload capacity over time.
Solution Approach 2:
The patent implements preliminary action by pre-assembling replacement hungry board sections in advance. These pre-prepared replacement sections are ready for immediate installation when damage occurs, eliminating the need for on-site fabrication or complex repair procedures, thus reducing maintenance time and keeping the truck productive.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution increases payload capacity without significantly increasing truck weight, reduces maintenance costs and time, and enhances safety by allowing for quick and easy replacement of boards in the field, minimizing environmental impact and personnel exposure to hazards.
Implementation Method 1
one or more resilient members... springs located about corresponding ones of the elongate shafts wherein the springs are captured between a feet of the anchor members and the rotation plate
Data Source
AI summary
Hungry boards, or spill boards, for mounting about a tip truck load carrying body are formed with a pair of spaced apart vertical bores corresponding to and depending downward from the access cutouts. Vertical bores formed through the hungry board receive the threaded end of an anchor bolt which is welded to lip of the body. The anchor bolt comprises part of a resilient fastening system for attachment of the hungry board the anchor bolt is formed with a flat foot from which a shank extends. The shank terminates upwardly in a threaded upper end. A compression spring is located about the shank and arranged to absorb impact forces directed at the hungry board during use. The hungry boards are made of a light weight resilient material such as a tough synthetic rubber.