Coupling Pin Lubrication Assembly With Internal Flow Distribution
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Solution Overview
Problem
Existing lubrication delivery systems for machine coupling assemblies are complex and require multiple hoses, making them prone to damage from debris and increasing maintenance needs due to the high number of coupling assemblies in machines like backhoe loaders and excavators.
Innovation Solution
A coupling assembly with internal pin passageways and a distribution device that splits and directs lubricant internally, reducing the need for external hoses by allowing lubricant to be delivered through a single system and reused within the machine's components, thereby simplifying the lubrication process and reducing the risk of hose damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple hoses are used to deliver lubricant to each coupling assembly, then each coupling assembly can be lubricated effectively, but the system complexity increases and maintenance requirements increase
Solution Approach 1:
The patent combines multiple lubrication delivery functions into a single integrated hose system. The lubricant is delivered through one hose to a distribution point, then distributed internally to multiple coupling assemblies, eliminating the need for separate hoses for each assembly while maintaining effective lubrication to all components.
Solution Approach 2:
The patent introduces an intermediary distribution mechanism that receives lubricant from a single hose and redirects it to multiple coupling assemblies. This intermediary system enables one hose to serve multiple functions, reducing overall system complexity while ensuring each coupling assembly receives adequate lubrication.
2Reliability
If multiple hoses are used to deliver lubricant to coupling assemblies, then each assembly receives lubricant, but the hoses are exposed to falling debris and rocks increasing damage risk
Solution Approach 1:
The patent extracts the vulnerable external hoses from the direct path to coupling assemblies and replaces them with an internal lubrication system. The lubricant is delivered through protected internal passages within the machine structure, eliminating exposure to external debris and rocks while maintaining lubrication delivery to all coupling assemblies.
3Reliability
If a complex lubrication delivery system is used to lubricate multiple coupling assemblies, then all assemblies can be lubricated, but maintenance requirements increase
Solution Approach 1:
The patent merges multiple lubrication circuits into a single integrated system. Instead of maintaining separate hoses and delivery mechanisms for each coupling assembly, a single hose delivers lubricant to a central distribution point, simplifying maintenance by reducing the number of components that require inspection and replacement.
Solution Approach 2:
The patent implements a self-distributing lubrication system where the lubricant automatically flows to multiple coupling assemblies through internal passages without requiring manual intervention for each assembly. This self-service capability reduces maintenance requirements by eliminating the need for operators to connect and disconnect multiple hoses during servicing.
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
This solution reduces the number of external hoses required, simplifies the lubrication system, and enhances maintenance efficiency by allowing lubricant to be effectively distributed and reused within the machine's components, improving the reliability and longevity of the coupling assemblies.
Implementation Method 1
at least a first pin passageway for lubricant extending between a first pin passageway inlet located at the first end of the pin and a first pin passageway outlet located at the outer surface of the pin for directing lubricant outside of the pin to the outer surface
Implementation Method 2
a distribution device for distributing lubricant comprising at least one distribution device inlet for receiving lubricant and at least one distribution device outlet, wherein the distribution device is mounted to the pin and the at least one distribution device outlet is arranged to direct lubricant into the first pin passageway inlet
Implementation Method 3
Lubricant is commonly provided to the pin and one or more bearing housings in order to reduce the friction therebetween, thereby improving the performance and lifetime of the coupling assembly
Data Source
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AI summary
The present disclosure is directed towards a coupling assembly (13) for a machine (10). The coupling assembled comprises a pin (27) comprising at least a first pin passageway (31) for lubricant extending between a first pin passageway inlet (32) and a first pin passageway outlet (33) for directing lubricant outside of the pin (27). The coupling assembly (13) also comprises a distribution device (28) for distributing lubricant comprising at least one distribution device inlet (45) for receiving lubricant and at least one distribution device outlet (46, 62, 47, 48). The distribution device (28) is mounted to the pin (27) and the at least one distribution device outlet (46, 62, 47, 48) is arranged to direct lubricant into the first pin passageway inlet (32).