Electric Tractor Platform Layout for Stable Center of Gravity
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Solution Overview
Problem
Existing electrically-driven tractor platforms face challenges in stable control, particularly on open ground and slopes, due to the placement of batteries and hydraulic systems, and require independent motors for powering working machines.
Innovation Solution
A platform structure for an electrically-driven tractor with a battery installed at the front side of the cabin and a hydraulic system at the rear, utilizing rear wheel driving to power working machines without a specific independent motor, and positioning the center of gravity between the front and rear wheels for stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the battery is installed at the front side of the cabin and the hydraulic system at the rear side, then the center of gravity is positioned between front and rear wheels improving stability, but the device complexity increases due to asymmetric component distribution
Solution Approach 1:
The patent applies asymmetry by positioning the battery at the front side of the cabin and the hydraulic system at the rear side, creating an asymmetric weight distribution that places the center of gravity between the front and rear wheels. This asymmetric arrangement improves tractor stability on open ground and slopes, directly resolving the technical contradiction between stability improvement and increased structural complexity.
2Device complexity
If rear wheel driving is used to power working machines without an independent motor, then the device complexity is reduced, but the power delivery capability to working machines may be insufficient
Solution Approach 1:
The patent applies universality by using the rear wheel driving system to serve dual functions: propelling the tractor forward and powering the working machine through the hydraulic system. The hydraulic system acts as a universal power transmission mechanism that can deliver power to both the drive wheels and the attached working machine, eliminating the need for an independent motor while maintaining sufficient power delivery capability.
3Temperature
If the cooler and radiator are installed at the front side of the battery, then the cooling efficiency of the battery and transmission working fluid is improved, but the device complexity increases
Solution Approach 1:
The patent applies preliminary action by installing the cooler and radiator at the front side of the battery to pre-cool the battery and transmission working fluid before they reach their operating temperatures. This proactive cooling arrangement prevents overheating of critical components, improving overall cooling efficiency while integrating the cooling system into the existing platform structure.
Data Source
AI summary
The present invention relates to a platform structure of an electrically-driven tractor that can work while stably maintaining the center of gravity, the platform structure comprising: a front wheel part and a rear wheel part for transmitting power by 4-wheel driving; a cabin installed between the front wheel part and the rear wheel part and installed to enable a worker to ride thereon; a battery part for supplying power to the electrically-driven tractor; an hydraulic system for driving a working machine; and a three-point hitch installed at the rear of the hydraulic system to allow the working machine to be attached thereto.