Driveline Coupler Self-Centering Mechanism for High Torque Irrigation
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Solution Overview
Problem
Conventional driveline couplers in irrigation systems fail under high loads and extreme duty torque conditions, leading to downtime and increased maintenance costs.
Innovation Solution
A driveline coupler design featuring a first arm connected to a shaft, a second arm connected to a drive shaft, a puck for torque transmission, and a center pin for alignment, along with a self-centering mechanism and adjustable securing members to accommodate different drive shaft sizes, and a shock absorber for torque transmission, which can also act as a mechanical fuse to prevent damage under high torque conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional driveline couplers are used, then the system can operate under normal conditions, but they fail under very high loads and extreme duty torque conditions
Solution Approach 1:
The driveline coupler is divided into separate components including a first arm, second arm, puck, and center pin that can be assembled and disassembled. This segmentation allows each component to be optimized for specific load conditions and enables easy replacement after failure, improving overall system reliability under extreme torque conditions.
Solution Approach 2:
The coupler components are designed to utilize composite material properties and structural configurations that distribute and manage extreme torque loads more effectively than conventional solid coupler designs, preventing catastrophic failure under high stress conditions.
2Device complexity
If conventional driveline couplers are used, then the structure is simple, but maintenance costs increase due to failures under extreme loads
Solution Approach 1:
By segmenting the coupler into modular components, the design achieves reasonable structural complexity that enables easy maintenance and replacement of individual parts, reducing overall maintenance costs despite the added complexity of multiple components.
Solution Approach 2:
The coupler incorporates self-centering mechanisms and alignment features that automatically adjust and maintain proper operation without requiring complex external adjustment mechanisms, reducing maintenance needs while improving durability.
3Ease of operation
If conventional driveline couplers are used, then installation is straightforward, but they do not accommodate different drive shaft sizes
Solution Approach 1:
The coupler incorporates adjustable and flexible elements such as the relationship between the base member and securing member that can be adjusted without adjusting the engagement between the second arm and puck, allowing adaptation to different drive shaft sizes while maintaining ease of installation through a standardized basic assembly process.
Solution Approach 2:
The coupler design creates a universal connection system where the same basic coupler structure can accommodate multiple drive shaft sizes through adjustable features, eliminating the need for different coupler models and simplifying installation across various configurations.
4Device complexity
If conventional driveline couplers are used, then the design is simple, but alignment is not maintained under high torque conditions
Solution Approach 1:
The center pin is configured to automatically align the puck with the drive shaft through self-centering action, maintaining alignment stability under high torque conditions without requiring complex external alignment mechanisms or manual adjustment during operation.
Solution Approach 2:
The alignment mechanism utilizes the interaction between the center pin, puck, and arm components with carefully designed geometric relationships and material properties to maintain stable alignment under extreme loads without adding complex active control systems.
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 driveline coupler effectively transmits high torque without failing, reduces maintenance costs, and allows for easy installation and adjustment, ensuring reliable operation in irrigation systems by self-centering various drive shaft sizes and withstanding extreme loads.
Implementation Method 1
a puck configured to engage the first and second arms and transmit a torque between them
Implementation Method 2
a shock absorber for torque transmission, which can also act as a mechanical fuse to prevent damage under high torque conditions
Data Source
AI summary
A driveline coupler can have a pair of load arms that engage with an insert member between them. The load arms can be configured to couple to shafts in a drive assembly. At least one load arm can be adjustable to couple with different sized shafts. The at least one load arm can also self center different sized shafts including different sized shafts of similar shapes. The coupler can further have a center pin to align the coupler. A coupler with a center pin can further have a fixing member to lock the coupler in alignment.