Dynamic Tilt Safety Control for Construction Machine Actuators
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Solution Overview
Problem
Construction machines, such as earth drilling apparatuses, face operational limitations due to tilting moments caused by static and dynamic forces, which existing safety measures often address by restricting adjustment paths, thereby limiting their working radius and versatility.
Innovation Solution
A safety system comprising a carrier unit, an actuation unit, and a detection system that determines a safe adjustment range for the actuation unit relative to the carrier unit, using an evaluation unit and indication means to ensure tilt-safe operation by visualizing the current position and adjustment range, allowing for intuitive operator feedback and increased operational reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the adjustment paths of projecting loads are limited to prevent excessive tilting moments, then safety against tilting is improved, but the operating range and versatility of the construction machine are restricted
Solution Approach 1:
The patent implements dynamic adjustment of the safe adjustment range based on real-time detection of tilting moments. The system continuously monitors the actual tilting moment and dynamically calculates the safe adjustment range, allowing the actuation unit to operate with larger projection when tilting moments are low and restricting it when tilting moments approach critical values. This dynamic approach replaces static limitation with adaptive control, simultaneously improving safety and expanding operating range.
Solution Approach 2:
The patent employs a feedback mechanism where detecting means continuously measure the actual tilting moment acting on the construction machine, and this information is fed back to the control unit. The control unit uses this feedback to recalculate and update the safe adjustment range in real-time, creating a closed-loop control system that adapts to changing operating conditions, thereby resolving the contradiction between safety and versatility.
2Reliability
If the adjustment range of the actuation unit is restricted to ensure safety against tilting, then operational reliability is improved, but productivity and efficiency are reduced
Solution Approach 1:
The system dynamically adjusts the safe adjustment range based on real-time tilting moment detection rather than applying static restrictions. When operating conditions are favorable (low tilting moments), the actuation unit can operate with full projection and extended range, maximizing productivity. When tilting moments increase, the system dynamically restricts the range only to the extent necessary for safety, thereby maintaining high efficiency while ensuring operational reliability.
Solution Approach 2:
The patent changes the parameter of the safe adjustment range based on the detected actual tilting moment. By continuously monitoring tilting moment parameters and adjusting the safe adjustment range parameter accordingly, the system optimizes the balance between safety and productivity, allowing maximum operational efficiency within dynamically determined safe limits.
3Reliability
If a fixed safe adjustment range is predetermined to prevent tilting, then safety is ensured, but the working radius and versatility are limited
Solution Approach 1:
The patent replaces fixed predetermined safe adjustment ranges with dynamically calculated ranges based on real-time detection of actual tilting moments. The control unit continuously computes the safe adjustment range as a function of the detected tilting moment, allowing the working radius to expand when tilting moments are low and contract when they increase, thereby maximizing the working radius while maintaining safety.
Solution Approach 2:
The system changes the safe adjustment range parameter dynamically based on the detected actual tilting moment. Instead of using a fixed parameter value, the control unit calculates the safe adjustment range parameter as a variable that adapts to changing operating conditions, thereby extending the working radius while ensuring safety through continuous parameter adjustment.
Data Source
AI summary
The invention relates to a safety means for a construction machine having a carrier unit and an actuation unit, which is adjustable with respect to the carrier unit, comprising at least one detecting means for detecting the current position of the actuation unit relative to the carrier unit, an indication means with which the current position of the actuation unit relative to the carrier unit can be indicated, and an evaluation unit, by means of which, depending on at least one input value, at least one adjustment range of the actuation unit can be determined, in which the actuation unit is adjustable at a given safety against tilting of the construction machine, whereby the adjustment range can be indicated together with the current position of the actuation unit by means of the indication means.