Elastomer Locking Mechanism for Earth-Moving Equipment Connections
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Solution Overview
Problem
Existing connection systems for earth-moving equipment are prone to wear and tear, require frequent replacement, and often necessitate the use of hydraulic fluid, which can leak and is difficult to maintain, leading to inefficiencies and safety concerns.
Innovation Solution
A locking mechanism utilizing an elastomer material to apply pressure and secure components together, eliminating the need for hydraulic fluid and simplifying the connection process with a mechanical system that uses pistons and pressure members to restrain components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional pins with fixed heads or screw-on nuts are used to secure teeth to bucket lips, then the connection is strong and reliable, but the pin cannot be easily removed and requires special extraction tools, increasing maintenance time and complexity
Solution Approach 1:
The pin transitions from a static fixed-head design to a dynamic design where the head can move axially along the pin body. The groove in the pin head receives a tool that applies axial force to extract the pin, enabling easy removal while maintaining structural integrity during operation
Solution Approach 2:
The pin design incorporates self-extraction capability through the groove feature that accepts a simple tool. The pin can be removed by applying force through the groove without requiring complex extraction equipment, making the system self-servicing for maintenance operations
2Ease of operation
If hydraulic fluid systems are used to secure adapters to bucket lips, then quick release operation is enabled, but the system becomes complex, difficult to maintain, and prone to leaking and abrasion in harsh environments
Solution Approach 1:
The hydraulic fluid system is completely removed from the connection mechanism. Instead, a purely mechanical locking system using locking components and locking surfaces is implemented, eliminating the complexity and maintenance issues associated with hydraulic systems while retaining quick release functionality
Solution Approach 2:
The hydraulic mechanical system is replaced with a simpler mechanical locking system. The locking component engages with the locking surface through direct mechanical interaction, providing quick release operation without requiring hydraulic fluid, pumps, or complex control systems
3Force
If traditional connection systems are used in harsh earth-moving environments, then connections can withstand heavy loads, but they are subject to constant abrasion, impacts, and wear, requiring frequent replacement
Solution Approach 1:
The connection system incorporates features that accommodate and cushion the effects of impacts and abrasions before they cause damage. The design allows for easy replacement and includes robust locking mechanisms that can withstand repeated shocks and wear in harsh operating environments
Solution Approach 2:
The connection system uses materials and design parameters optimized for harsh environments, including wear-resistant surfaces and impact-tolerant geometries. The locking mechanism parameters are designed to maintain engagement under varying load conditions and environmental stresses
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 provides reliable, efficient, and cost-effective connections that reduce maintenance time, prevent rust, and minimize vibration, while allowing for easy replacement and repair of components without the need for special tools or hydraulic systems.
Implementation Method 1
A locking mechanism utilizing an elastomer material to apply pressure and secure components together
Data Source
AI summary
A securing apparatus including a first and second component. The first component has an opening extending along an axis. The elongated member has a piston hole penetrating the first component and aligned with the opening. A piston is located within the piston hole, and is complimentary shaped to sit within the piston. A pressure member is located within the opening, and an activator is configured to coordinate with and extend into the opening. The activator applies a force to the pressure member and distorts the pressure member. The second component, which compliments and mates with the first component, has an engaging surface that coordinates with an end of the piston. The force applied to the pressure member causes the pressure member to distort and apply pressure to the piston to extend the piston outward to interact with the engaging surface of the second component to restrain the second component.