Tree Root Machine Wheel Switching for Manual and Motorized Movement
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Solution Overview
Problem
Manual hand-propelled tree root machines require high labor intensity due to reliance on manual pushing, affecting work efficiency.
Innovation Solution
A tree root machine design featuring a machine frame with driven walking wheels and a driving wheel, where the driving wheel is higher than the walking wheels when the handle is raised, allowing manual pushing for movement, and lowers to drive the machine when the handle is lowered, combining manual and motorized movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual pushing is used to walk the tree root machine, then the machine is simple in structure and easy to operate, but the labor intensity is high and work efficiency is reduced
Solution Approach 1:
The patent applies the dynamics principle by making the driving wheel movable relative to the ground through the handle mechanism. When the handle is raised, the driving wheel lifts off the ground for manual pushing; when the handle is lowered, the driving wheel contacts the ground for motorized driving. This dynamic adjustment allows the machine to switch between manual and motorized modes, resolving the contradiction between operational simplicity and work efficiency.
2Productivity
If a driving wheel is added to enable motorized movement, then work efficiency is improved, but the device complexity increases
Solution Approach 1:
The patent applies the universality principle by designing the driving wheel to serve multiple functions: it acts as both a drive wheel for motorized movement and a component of the handle mechanism for manual operation. The same driving wheel is used in both raised (manual pushing) and lowered (motorized driving) positions, eliminating the need for separate mechanisms and reducing overall device complexity while maintaining work efficiency improvements.
3Ease of operation
If the driving wheel is positioned high above the walking wheels, then manual pushing is enabled, but the machine cannot achieve self-driven movement
Solution Approach 1:
The patent resolves this contradiction through dynamic positioning of the driving wheel. The handle mechanism allows the driving wheel to move between a raised position (for manual pushing) and a lowered position (for motorized driving). This dynamic adjustment enables the machine to achieve both ease of manual operation and extent of automation depending on the operational mode, rather than being fixed in one configuration.
Data Source
AI summary
The present disclosure provides a novel tree root machine, which includes a machine frame with a push handle, and driven walking wheels and a driving wheel which are rotatably connected to the machine frame. A driving device in transmission connection with the driving wheel is arranged on the machine frame for driving the driving wheel to rotate. The ground contact surface of the driving wheel and the ground contact surfaces of the driven walking wheels are not coplanar, and the position of the driving wheel is higher than that of the driven walking wheel when the push handle is in a raised state. The driving wheel and the driven walking wheels touch the ground together when the push handle is in a lowered state, and then the machine frame is driven to move.