Inclination Control for Construction Machines on Uneven Terrain
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Solution Overview
Problem
Construction machines like cold planers and rotary mixers face performance issues due to tilting caused by uneven terrain, which existing technologies fail to address effectively, affecting their ability to maintain parallel orientation with the operating surface.
Innovation Solution
An inclination control system using slope sensors positioned on transportation devices and the machine's frame, coupled with a controller that adjusts lifting columns to maintain the machine's frame parallel to the operating surface by extending or retracting them based on inclination measurements from these sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If construction machines traverse uneven terrain, then mobility and adaptability are improved, but machine tilting occurs which deteriorates performance and orientation control
Solution Approach 1:
The system employs slope sensors to continuously detect the machine's inclination angle relative to the operating surface and provides feedback to the controller. The controller automatically adjusts the lifting columns based on this feedback to maintain the desired orientation, creating a closed-loop control system that resolves the contradiction between terrain adaptability and orientation stability.
Solution Approach 2:
The lifting columns are designed as dynamically adjustable support elements that can extend or retract in real-time. This dynamic adjustment capability allows the system to actively compensate for terrain variations, maintaining stable machine orientation while traversing uneven surfaces, thus resolving the contradiction between mobility and stability.
2Measurement precision
If slope sensors and control systems are added to maintain parallel orientation, then orientation control precision is improved, but device complexity increases
Solution Approach 1:
The system replaces complex mechanical orientation adjustment mechanisms with an electronic control system that uses slope sensors and a controller to automatically adjust the lifting columns. This substitution of mechanical systems with electronic control reduces overall system complexity while improving measurement and control precision.
Solution Approach 2:
The lifting columns serve multiple functions: they provide structural support for the machine frame and simultaneously act as adjustable elements for orientation control. This multi-functionality reduces the need for separate orientation adjustment mechanisms, thereby reducing device complexity while maintaining precise control capability.
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 system ensures precise control of the construction machine's orientation, enhancing its stability and performance by maintaining the frame parallel to the operating surface, even on uneven terrain, thereby improving ride stability and level cutting.
Implementation Method 1
a first slope sensor coupled to the first transportation device and a second slope sensor coupled to the construction machine
Data Source
AI summary
A system may include a first transportation device of a milling machine, a controller, and an inclination control system. The controller can control a construction machine including the first transportation device, which can move the construction machine over an operating surface. The inclination control system includes a first sensor coupled to the first transportation device to sense an orientation of the first transportation device relative to the frame of the milling machine. The controller controls the milling machine based on inclination information received from the inclination control system.