Mast Support Arm Pivot Angle Detection for Foundation Construction Stability
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Solution Overview
Problem
Construction apparatuses with support mechanisms for masts face instability due to shifts in the center of gravity, leading to potential toppling, and existing solutions like manual support clamps are unreliable during operation and transport.
Innovation Solution
Incorporating a rotary encoder to detect the pivot angle of the support arm relative to the chassis, allowing for sensor-based monitoring and control of the mast's adjustment position to maintain stability, which remains active in all operating positions without mechanical limitations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a manual support clamp is used to limit the actuation path of the support mechanism, then the tilt stability is improved, but the operational reliability deteriorates due to the risk of improper attachment or removal
Solution Approach 1:
The patent replaces the manual mechanical support clamp system with an automated sensor-based detection system. A sensor detects the pivot angle of the support arm and provides signals to a control unit, which automatically controls the actuator to limit the actuation path. This substitution eliminates the need for manual attachment and removal of support clamps, ensuring consistent operation and improving reliability while maintaining tilt stability.
2Stability of the object's composition
If the support clamp is attached to prevent excessive actuation, then the center of gravity shift is controlled, but the device complexity increases due to additional attachment and removal operations
Solution Approach 1:
The system performs self-service by automatically detecting the pivot angle through a sensor and controlling the actuator's actuation path without requiring manual intervention. The control unit continuously monitors the sensor signals and automatically adjusts the support mechanism, eliminating the need for operators to manually attach or remove support clamps, thereby reducing operational complexity while maintaining center of gravity control.
3Stability of the object's composition
If the support mechanism actuation path is limited by a physical clamp, then the tilt stability is improved, but the ease of operation deteriorates due to manual attachment and removal requirements
Solution Approach 1:
The patent replaces the manual mechanical support clamp system with an automated sensor-based detection system. A sensor detects the pivot angle of the support arm and provides signals to a control unit, which automatically controls the actuator to limit the actuation path. This substitution eliminates the need for manual attachment and removal of support clamps, ensuring consistent operation and improving reliability while maintaining tilt stability.
4Reliability
If a sensor is used to detect the pivot angle continuously, then the operational reliability is improved, but the device complexity increases due to additional sensing and control components
Solution Approach 1:
The patent implements a feedback control system where a sensor continuously detects the pivot angle of the support arm and provides signals to a control unit. The control unit processes these signals and automatically controls the actuator to maintain safe operating ranges. This feedback mechanism ensures continuous monitoring and automatic adjustment, improving operational reliability while the integrated control system manages the complexity through automated decision-making.
Data Source
AI summary
A construction apparatus for foundation construction includes a chassis, a mast for guidance of at least one ground working apparatus and a support mechanism for the mast, wherein the mast is arranged in an adjustable manner on the chassis. The support mechanism has at least one support arm, which is pivotably hinged about a pivot axis on the chassis. A rotary encoder is provided for detecting the pivot angle of the support arm relative to the chassis as a degree of an adjustment position of the mast.