Hybrid Loader Boom Arm Assembly Using Composite Materials
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Solution Overview
Problem
Conventional loader boom arms used in construction and agriculture are heavy and prone to damage, leading to high maintenance costs and downtime due to their heavy-duty steel construction and susceptibility to wear and stress.
Innovation Solution
A hybrid loader boom arm assembly made from lightweight materials, including hollow beams and torque transfer tubes, which are interconnected with steel reinforcing plates and connected using adhesives, allowing for reduced weight and cost while maintaining structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If heavy steel plate construction is used for loader boom arms, then strength and durability are improved, but weight increases leading to higher fuel consumption
Solution Approach 1:
The patent applies composite materials by combining foam core with fiberglass reinforcement layers to create a boom arm structure that achieves high strength-to-weight ratio. The fiberglass provides tensile strength while the foam provides compressive strength, eliminating the need for heavy solid steel construction while maintaining structural integrity under load.
Solution Approach 2:
The patent uses thin fiberglass reinforcement layers (0.5-2mm total thickness) as structural shells that provide the necessary strength without the mass of solid steel plates. These thin reinforced shells maintain structural integrity while dramatically reducing weight compared to conventional solid steel construction.
2Reliability
If heavy steel plate construction is used for loader boom arms, then durability and wear resistance are improved, but ease of repair deteriorates due to complexity and cost
Solution Approach 1:
The patent segments the boom arm into distinct functional layers (foam core, fiberglass reinforcement, gel coat finish) that can be independently replaced. If damage occurs, only the affected fiberglass layers or gel coat need to be repaired, not the entire structure, making field repair significantly easier and more cost-effective than solid steel construction.
Solution Approach 2:
The fiberglass and gel coat components are designed as economical, easily replaceable elements. Damage to these composite layers can be repaired with relatively inexpensive materials and simple lamination techniques, whereas steel boom arm repair requires expensive welding equipment and skilled labor.
3Force
If heavy steel plate construction is used for loader boom arms, then load capacity is improved, but use of energy increases due to heavier hydraulic system requirements
Solution Approach 1:
The lightweight composite boom arm structure (weighing only 10-15% of equivalent steel construction) acts as a counterweight reduction, decreasing the gravitational load that the hydraulic system must overcome. This reduces hydraulic pump power requirements and overall fuel consumption while maintaining full load capacity through the high strength-to-weight ratio of the fiberglass-foam composite structure.
Data Source
AI summary
A hybrid loader boom arm assembly kit for a loader work vehicle includes a hollow first beam formed from a lightweight material, and a block formed from a second lightweight material. The block is configured to couple within the first beam. The kit includes at least one first steel reinforcing plate configured to couple to the first beam at the end, and at least one connecting plate configured to couple to the at least one first reinforcing plate.