Earth Drilling Actuator Range Control for Tilt Stability

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Solution Overview

Problem

Existing earth drilling devices face challenges in maintaining operational reliability, stability against tipping, and achieving a wide range of applications due to structural limitations imposed to prevent excessive tipping moments.

Innovation Solution

An earth drilling device equipped with a carrier unit, an adjustable actuating unit, sensors for data recording, and a computing unit that determines a safe adjustment range based on various condition data to maintain tilting stability, including sensors for load, dynamic state, and other factors, with visual and control signals to ensure safe operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the adjustment range of the actuating unit is structurally limited to prevent excessive tipping moments, then the tilting stability is improved, but the operating range and versatility of the construction machine deteriorates

Engineering Contradiction:
Improvetilting stabilityVSAvoidoperating range
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The patent applies dynamics by transitioning from static structural limitations to dynamic computational determination of the adjustment range. The control unit continuously calculates the permissible adjustment range based on real-time operating conditions (load, position, support reactions), allowing the limits to adapt dynamically rather than being fixed structurally. This enables the system to maintain stability while expanding the operating range.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of adjustment range from a fixed structural constraint to a variable parameter determined by multiple factors including support reactions, load magnitude, and position. The control unit modifies the permissible adjustment range based on changing operating parameters, allowing the system to optimize between stability and versatility depending on current conditions.

Inventive Principle:
Principle #35Parameter changes

2Stability of the object's composition

If numerous measuring elements and pressure measuring elements are provided to determine adjustment range while maintaining stability, then the tilting stability is improved, but the device complexity increases

Engineering Contradiction:
Improvetilting stabilityVSAvoidnumber of measuring elements
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent applies universality by designing measuring elements that serve multiple functions. The sensors detect both position data and load data, which are then used by the control unit to calculate both the adjustment range and to monitor stability. This multi-functional approach reduces the total number of dedicated measuring elements needed compared to specialized single-function sensors.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The control unit acts as an intermediary that processes data from measuring elements and translates it into actionable information about the adjustment range. Rather than having complex mechanical limit stops or multiple specialized sensors, the control unit mediates between the raw sensor data and the stability control, simplifying the overall system architecture.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Adaptability or versatility

If the adjustment range is dynamically determined based on condition data including load and position, then the versatility and working radius are improved, but the extent of automation and control complexity increases

Engineering Contradiction:
Improveworking radiusVSAvoidcontrol automation
Core Design Contradiction:
Adaptability or versatilityVSExtent of automation

Solution Approach 1:

The patent implements feedback by continuously monitoring operating conditions (support reactions, load, position) and using this information to dynamically adjust the permissible adjustment range. The control unit receives feedback from sensors and automatically modifies the adjustment limits, creating a closed-loop control system that balances automation with operational safety.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP3255239B1Construction machine with computer unit for determining an adjustment area
Publication Date: 2026.02.11 BAUER MASCH GMBH
  • EP3255239B1 patent drawingFigure 1

AI summary

The invention relates to a construction machine comprising a carrier unit, an actuating unit adjustable relative to the carrier unit, at least one sensor for acquiring status data of the construction machine, and a computer unit by which, based on the acquired status data, at least one adjustment range of the actuating unit can be determined within which the actuating unit is adjustable while maintaining a predetermined stability of the construction machine. The invention also relates to a method for operating such a construction machine.