Hydraulic Boom Feedback Control for Working Line Tool Alignment
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Solution Overview
Problem
Operators face challenges in aligning and maintaining construction or demolition tools, such as hydraulic hammers or drills, at the correct angle and height while operating hydraulically controlled booms or arms, leading to potential damage and uneven treatment of surfaces due to improper alignment and movement.
Innovation Solution
A system comprising a controller and two hydraulic cylinders with piston position sensors that receive control and position information to adapt the movement of the cylinders, ensuring the tool is maintained along a working line, thereby ensuring correct alignment and level during operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the operator manually controls the hydraulic cylinders to move the tool, then the operator has full control over the tool movement, but the operator cannot maintain the correct working line angle and height due to safety constraints and difficulty in visual alignment
Solution Approach 1:
The system uses piston position sensors to continuously monitor the position of hydraulic cylinders and provides feedback to the controller. The controller automatically adjusts cylinder movements to maintain the correct working line angle, eliminating the need for manual alignment while preserving operator control through the feedback loop.
Solution Approach 2:
The patent replaces manual mechanical alignment operations with an automated electronic control system that uses sensors and controllers to precisely maintain the working line angle, substituting human judgment and manual adjustment with automated measurement and control.
2Measurement precision
If automatic angle setting is implemented, then the alignment precision is improved, but the operator loses control over the boom movement which may cause safety issues
Solution Approach 1:
The feedback mechanism allows the system to automatically maintain alignment while the operator retains supervisory control. The controller continuously monitors piston positions and makes automatic adjustments to maintain the working line angle without taking complete control away from the operator.
Solution Approach 2:
The system performs self-alignment by automatically adjusting cylinder positions based on sensor feedback, eliminating the need for manual intervention while maintaining safety through automated control that prevents unexpected movements.
3Adaptability or versatility
If the tool is moved along a curved path during operation, then the tool can adapt to uneven surfaces, but the tool experiences increased stress and wear due to improper alignment
Solution Approach 1:
The system dynamically adjusts the working line angle during tool movement by continuously monitoring piston positions and making real-time control adjustments. This allows the tool to maintain proper alignment while moving along uneven surfaces, adapting to surface variations without compromising alignment precision.
Solution Approach 2:
Continuous feedback from position sensors enables the controller to maintain the correct working line angle throughout the tool's movement path, ensuring proper alignment is preserved even when adapting to uneven surfaces, thereby preventing excessive stress and wear.
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
This solution allows for precise alignment and movement of tools along a straight line, reducing wear and tear, improving operational stability, and preventing damage to the tool and its components.
Implementation Method 1
A first piston position sensor of the first hydraulic cylinder and a second piston position sensor of the second hydraulic cylinder may be used
Implementation Method 2
at least a first hydraulic cylinder and a second hydraulic cylinder both having each a piston
Data Source
AI summary
A carrier comprising at least a first hydraulic cylinder and a second hydraulic cylinder both having each a piston and a piston position sensor, wherein the carrier is arranged to carry a tool through the use of the hydraulic cylinders and wherein the controller is configured to: receive control information to move the tool in a direction along a working line; receive position information for the first cylinder; receive position information for the second cylinder; determine if the working line for the tool is maintained, and, if the working line is not maintained, then adapt for the movement of the first cylinder by providing control of the second cylinder to maintain the working line for the tool and thereby feeding the tool along the working line.