Counterweight Fine Adjustment for Telescopic Crane Balance

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Solution Overview

Problem

Existing telescopic filming cranes face challenges in achieving precise balance during extension, leading to vibrations and operator fatigue due to manual adjustment of counterweights, which is inefficient and prone to oscillations.

Innovation Solution

A device with a secondary counterweight platform, motor-actuated movement transmission system, and electronic control for automatic fine adjustment of counterweights, allowing precise balance maintenance relative to the crane's fulcrum, reducing operator intervention and oscillations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If manual adjustment of counterweights is used, then the crane can be balanced at critical points, but operator fatigue increases and oscillations occur

Engineering Contradiction:

Improvecrane balanceVSAvoidoperator workload

Core Design Contradiction:

Stability of the object's compositionVSEase of operation

Solution Approach 1:

The system uses sensors to detect the crane's actual position and automatically calculates the required counterweight adjustment, eliminating the need for manual operator intervention and reducing fatigue while maintaining balance stability

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The manual mechanical adjustment system is replaced with an automated electromechanical system that uses sensors, processors, and motorized actuators to automatically adjust counterweights based on real-time crane position data

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Stability of the object's composition

If manual counterweight adjustment is used, then balance can be achieved, but vibrations and oscillations increase

Engineering Contradiction:

Improvecrane balanceVSAvoidvibrations

Core Design Contradiction:

Stability of the object's compositionVSObject-generated harmful factors

Solution Approach 1:

The system continuously monitors the crane's actual position using sensors and compares it with the expected position, automatically adjusting counterweights in real-time to compensate for deviations and minimize vibrations and oscillations

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The counterweight adjustment system transitions from static manual positioning to dynamic automated adjustment, continuously adapting counterweight positions based on real-time crane movement and load conditions to maintain optimal balance and reduce vibrations

Inventive Principle:

Principle #15Dynamics

3Measurement precision

If automatic fine adjustment device is added, then balance precision improves, but device complexity increases

Engineering Contradiction:

Improvebalance precisionVSAvoidsystem complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The control system integrates multiple functions including position sensing, balance calculation, and counterweight actuation into a single automated unit, improving precision while minimizing the increase in overall system complexity through functional integration

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS10214397B2Device for fine adjustment of the counterweight of a telescopic filming crane

Publication Date: 2019.02.26 VALLES NAVARRO ALFREDO

AI summary

A device for finely adjusting the position of the counterweight of a telescopic filming crane has an electronically controlled motor, acting on a secondary counterweight platform, which automatically finely adjusts the position of the counterweight as the crane's telescoping tubes are extended and retracted.