Rotor Depth Control for Rotary Mixers
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Solution Overview
Problem
Establishing a precise ground-engaging reference point for rotary mixers is challenging due to inconsistent terrain, machine tolerances, and adjustable components, making it difficult to determine the actual position of the rotor relative to the ground.
Innovation Solution
A system comprising a frame, ground-engaging portion, suspension system, and control module that adjusts and monitors the rotor's position, using a telescopic leg and hydraulic system for precise control, along with a control and monitor system to calculate and adjust the rotor's depth, accounting for factors like tire pressure and soil conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the tool is adjustably fixed to the machine for engaging the ground, then the power and weight utilization are improved, but the difficulty of determining the tool/ground relationship increases
Solution Approach 1:
The patent introduces a depth gauge as an intermediary measuring device that indirectly determines the tool/ground relationship by measuring the position of the rotor relative to the frame. This mediator component translates complex spatial relationships into a simple, readable depth indication, resolving the difficulty of direct measurement while maintaining the adjustable fixed connection for power utilization.
Solution Approach 2:
The patent replaces complex mechanical measurement systems with a simplified depth gauge mechanism. Instead of using multiple sensors or complex mechanical linkages to determine tool position, a single depth gauge provides direct measurement, substituting a simpler mechanical solution for a complex one while maintaining measurement capability.
2Ease of operation
If the tool is allowed to float relative to the machine, then the ease of operation is improved, but the power utilization is reduced
Solution Approach 1:
The patent implements a dynamic system where the rotor can be adjusted between a fixed engaged position (for power utilization) and a raised position (for ease of operation and transport). The depth gauge provides continuous feedback on rotor position, enabling the operator to dynamically adjust the system state based on operational needs, thus combining the benefits of both floating and fixed configurations.
3Manufacturing precision
If the depth of the tool in the ground is controlled precisely, then the manufacturing precision is improved, but the device complexity increases
Solution Approach 1:
The patent extracts the depth measurement function from the complex machine system and isolates it into a separate, simple depth gauge component. This extracted measuring device provides precise depth control capability without requiring the entire machine system to become more complex. The depth gauge operates independently to provide accurate measurement while the rest of the machine maintains its原有 simplicity.
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
Enables precise control and adjustment of the rotor's position relative to the ground, ensuring accurate cutting and mixing operations by accounting for variables that affect the rotor's depth, such as terrain and machine dynamics.
Implementation Method 1
a suspension system coupling the ground-engaging portion to the frame and for adjusting the frame relative to the ground-engaging portion
Data Source
AI summary
An implement with a ground-engaging tool may include a frame, a ground-engaging portion for supporting the frame on a surface of ground, and a suspension system coupling the ground-engaging portion to the frame and for adjusting the frame relative to the ground-engaging portion. The implement may also include a tool supported by and adjustable relative to the frame and configured for working the ground. The implement may also include a control and monitor system configured for establishing a nominal position of the tool relative to the surface and for establishing an actual position of the tool relative to the surface based on an offset adjustment. A method of determining a rotor tool depth of a milling machine and a method of operating a milling machine may also be provided.