Debris Guard for Loader Hydraulic Cylinder
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Solution Overview
Problem
Debris accumulation around hydraulic cylinders and linking arms in track loaders, such as the Kubota SVL 97-2, leads to interference with movement and potential ignition risks due to gaps allowing debris to enter the engine compartment.
Innovation Solution
A debris guard assembly comprising flexible and rigid portions, including a metal ring assembly with elastomeric rubber sheeting, designed to allow free motion of hydraulic cylinders and linking arms while preventing debris entry into cavities, utilizing a combination of metal and rubber components to secure the seal around moving parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a gap is provided in the cover to allow hydraulic cylinder motion, then the hydraulic cylinder can pivot freely, but debris can enter the cavity and interfere with operation
Solution Approach 1:
A flexible debris guard made of rubber or elastomeric material is installed around the hydraulic cylinder, forming a flexible barrier that prevents debris entry while allowing cylinder motion through its elasticity and flexibility
Solution Approach 2:
The debris guard is designed to be dynamic rather than static, allowing it to move and deform with the hydraulic cylinder during operation, maintaining both protection and freedom of motion
2Object-affected harmful factors
If a rigid cover is used to prevent debris entry, then debris protection is improved, but the moving component cannot pivot freely
Solution Approach 1:
The rigid cover is replaced with a flexible debris guard that can deform and move with the hydraulic cylinder, providing continuous debris protection while accommodating the full range of motion required for operation
3Device complexity
If debris is allowed to accumulate in the cavity, then the structure remains simple, but the debris can be compacted and interfere with hydraulic cylinder movement
Solution Approach 1:
The flexible debris guard creates a simple yet effective barrier that prevents debris accumulation before it can cause problems, maintaining structural simplicity while ensuring reliable hydraulic cylinder operation throughout its service life
4Ease of operation
If debris falls into the engine compartment through the gap, then the gap serves its motion function, but the debris can be ignited by the hot engine
Solution Approach 1:
The flexible debris guard seals the gap around the hydraulic cylinder, preventing debris from falling into the engine compartment where it could be ignited, while still allowing the gap to serve its original function of accommodating cylinder motion
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
Effectively prevents debris from entering critical areas, ensuring smooth operation and reducing the risk of engine compartment ignition, while allowing for the free pivoting motion of hydraulic and linking arms.
Implementation Method 1
A debris guard assembly comprises one or more flexible portions and one or more rigid portions
Data Source
AI summary
A debris guard assembly comprises one or more flexible portions and one or more rigid portions. The debris guard assembly allows for motion of a moving component, such as, a hydraulic cylinder or a pivot arm, while preventing debris from falling into the cavity around the moving component.