Crane Load Block Turning-Moment Mechanism for Transport Securing
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Solution Overview
Problem
The process of securing a load block on a crane during transport is time-consuming, requiring manual movement of the boom system to transition the load block from a working position to a secure transport position.
Innovation Solution
A load block design with a functional surface that generates a turning moment when engaging an abutment, combined with a crane control system that automates the transition from a working position to a transport position using a winch arrangement and sensor-controlled actuators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual securing of the load block is performed, then the load block can be secured in transport position, but the process is time-consuming and requires multiple boom system movements
Solution Approach 1:
The load block is equipped with a functional surface and abutment arrangement that enables automatic engagement with the boom system when the boom is positioned in transport configuration. This preliminary mechanical arrangement eliminates the need for manual securing operations during transport preparation.
Solution Approach 2:
The load block's functional surface automatically engages with the boom system's abutment through the turning moment mechanism when the boom is moved to transport position. The system secures itself without requiring operator intervention, reducing both time and manual labor.
2Reliability
If manual securing of the load block is performed, then the load block can be secured, but multiple boom system movements are required increasing operational complexity
Solution Approach 1:
The load block automatically secures itself to the boom system through its functional surface and abutment engagement mechanism. This self-service capability eliminates the need for operators to perform multiple manual positioning and securing operations, simplifying the overall process.
Solution Approach 2:
The manual mechanical securing operations are replaced by an automatic mechanical engagement system. The functional surface with its specific contour automatically engages the abutment through a turning moment, substituting complex manual boom repositioning with a single automated movement.
3Extent of automation
If automatic winch control is implemented, then the load block transfer is automated, but control system complexity increases
Solution Approach 1:
The control system uses sensor feedback to detect the load block's position and the boom's configuration. This feedback enables the automated winch control to know when to start and stop the transfer operation, achieving automation through intelligent control rather than mechanical complexity.
Solution Approach 2:
Manual mechanical operations are replaced by an automated control system that uses sensors and a winch motor. The control system automatically manages the load block transfer based on detected conditions, replacing complex manual procedures with streamlined electronic control.
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
Facilitates efficient and automated securing of the load block, reducing manual intervention and streamlining the transport process.
Implementation Method 1
a surface of the load block comprises a functional portion having a shape that causes a turning moment on the load block if the functional portion of the surface engages an abutment
Data Source
AI summary
A load block for a crane comprises a mounting interface to attach a load to the load block. and means to transfer force to a cable. A surface of the load block comprises a functional portion having a shape that causes a turning moment on the load block if the functional portion of the surface engages an abutment.