Quad-Track Drive Assembly for Mini-Loader Traction
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Solution Overview
Problem
Existing power machines, particularly mini-loaders, often lack the traction and maneuverability needed for rough terrain and confined spaces due to their wheeled or dual-track configurations, which restrict their operational efficiency.
Innovation Solution
Equipping mini-loaders with a quad-track drive assembly featuring four endless track pods, powered by motors and drive chains, allowing for enhanced traction and maneuverability by converting existing wheeled or dual-track configurations into quad-track configurations through factory installation or retrofit kits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a wheeled or dual-track configuration is used, then the device complexity is reduced, but the traction and maneuverability on rough terrain deteriorates
Solution Approach 1:
The drive system is divided into four independent track pods instead of two larger tracks or wheels. Each track pod can independently engage with the ground, providing segmented traction points that improve grip on rough terrain while maintaining a relatively simple overall structure through modular design
2Ease of manufacture
If a wheeled or dual-track configuration is used, then the ease of manufacture is improved, but the maneuverability in confined spaces deteriorates
Solution Approach 1:
The track system is segmented into four separate pods that can be independently positioned and installed. This segmentation allows the pods to navigate tight spaces more effectively while maintaining ease of manufacture through standardized modular components that can be assembled using conventional welding and fastening techniques
Solution Approach 2:
The track pods are designed with rotational capability relative to the frame, allowing them to dynamically adjust their orientation for optimal maneuvering in confined spaces. This dynamic adjustment is achieved through pivot points and rotational joints that maintain structural integrity while enabling flexible positioning
3Reliability
If four endless track pods are installed, then the traction and maneuverability are improved, but the device complexity increases
Solution Approach 1:
The complex function of providing enhanced traction and maneuverability is achieved through segmentation into four independent track pods, each capable of independent rotation and engagement. This segmentation distributes the functional requirements across multiple simpler units rather than requiring one complex integrated system
Solution Approach 2:
Each track pod is designed as a universal module that performs multiple functions: providing traction, enabling maneuverability through independent rotation, and serving as a mounting point for drive chains. This multi-functionality reduces overall system complexity by eliminating the need for separate specialized components for each function
4Stability of the object's composition
If four endless track pods are installed, then the weight distribution is improved, but the manufacturing cost increases
Solution Approach 1:
The weight distribution function is achieved through segmentation into four track pods positioned at different locations on the frame. This segmentation naturally distributes the machine's weight across multiple contact points, improving stability on uneven terrain while using standardized modular components to control manufacturing costs
Data Source
AI summary
A power machine configured as a mini-loader includes a mini-loader frame defining a front end opposite a rear end and a first side opposite a second side, at least one first-side motor supported by the first side of the frame, at least one second-side motor supported by the second side of the frame, and four endless track pods. The four endless track pods include a first endless track pod and a second endless track pod supported by the first side of the frame, and a third endless track pod and a fourth endless track pod supported by the second side of the frame. The endless tracks of the first and second endless track pods are powered by the at least one first-side motor and the endless tracks of the third and fourth endless track pods are powered by the at least one second-side motor to propel the power machine.