Actuator-Controlled Slider for Automatic Boom Extension Deployment
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Solution Overview
Problem
Existing boom extension deployment methods for cranes are cumbersome and unsafe, particularly for larger cranes, as they require manual alignment and heavy lifting, and can result in accidental detachment if safety pins are removed, posing a risk to operators.
Innovation Solution
A telescoping boom system with an actuator-controlled slider and bracket assemblies that automatically align and connect the boom extension to the main boom, ensuring secure attachment and easy deployment, reducing the risk of detachment and allowing a single operator to manage the process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual alignment and heavy lifting are used for boom extension deployment, then the process can be completed with simpler equipment, but it becomes cumbersome and unsafe for larger cranes, requiring multiple operators and increasing the risk of accidental detachment
Solution Approach 1:
The boom extension deployment system performs alignment and connection functions automatically through the actuator-controlled slider mechanism, eliminating the need for manual intervention in hazardous alignment tasks. The system self-regulates the positioning of attachment elements relative to connector elements through automated mechanical movement.
Solution Approach 2:
The slider acts as an intermediary mechanism between the boom extension and the main boom, providing controlled movement and precise positioning. This intermediate device enables safe and accurate alignment of attachment elements with connector elements without requiring direct manual handling of heavy components.
2Ease of operation
If safety retaining pins are removed from intermediate supports to enable boom extension movement, then the boom extension can be repositioned, but accidental detachment may occur causing severe injury
Solution Approach 1:
The manual mechanical pin-retention system is replaced with an actuator-controlled mechanical linkage system. The actuator provides controlled force to move the slider and position the boom extension, eliminating the need for safety pins while maintaining secure attachment through positive mechanical engagement of alignment features.
Solution Approach 2:
The actuator system pre-positions the boom extension and maintains it in the correct position before final connection is made. The alignment features are designed to automatically engage at predetermined positions, ensuring secure attachment before the actuator completes the connection sequence, preventing accidental detachment.
3Weight of moving object
If the boom extension is made heavier to handle larger cranes, then it can support greater loads, but it becomes more difficult for operators to move and align manually
Solution Approach 1:
Manual mechanical alignment operations are replaced with an automated actuator system that controls the position of the boom extension through a slider mechanism. The actuator provides the necessary force to move heavy boom extensions and precisely align attachment elements with connector elements, making the process as easy to operate regardless of the boom extension weight.
Solution Approach 2:
The actuator-controlled slider serves as a mechanical intermediary that reduces the effort required to move and position heavy boom extensions. This intermediate mechanism translates actuator movement into precise positioning of the boom extension, enabling a single operator to safely and easily align heavy equipment.
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
The system enables efficient and safe deployment of boom extensions, reducing the risk of accidental detachment and allowing a single operator to manage larger boom extensions, while maintaining alignment without manual heavy lifting, thus enhancing operational safety and efficiency.
Implementation Method 1
An actuator is connected between the slider and the boom for shifting the slider between a retracted position and an extended position relative to the outer boom member
Data Source
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AI summary
A crane including a telescoping boom has a base boom member and an inner member slidably mounted in the base boom member with a first end projecting from the base boom member. The inner member includes first and second connector elements. A boom extension has a first end including first and second attachment elements, The boom extension also includes first and second spaced bracket assemblies and is shiftable between use and storage positions. A first support associated with the base boom member includes a holder for pivotably retaining the first bracket assembly and a second support has a rail projecting from the base section. A slider is slidably supported by the rail, and an actuator connected between the slider and the boom shifts the slider between a retracted position and an extended position relative to the base boom member. A method of deploying a boom extension is also disclosed.