Multi-hoist leveling control via inclinometer feedback
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Solution Overview
Problem
Existing load transporting systems struggle to maintain a substantially level or horizontal orientation of loads during vertical travel, leading to instability and potential damage or safety concerns due to uneven vertical displacement caused by non-identical performance of lifting equipment.
Innovation Solution
A load transporting system comprising a lifting assembly with multiple independent hoist lines and a detection and control assembly that uses inclinometers to determine angles of inclination and adjusts the speed of hoist lines to maintain a level orientation, ensuring stability through precise control of hoist line velocities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If separate pieces of equipment such as winches are used to control multiple cables, then the system can transport loads vertically, but the differentials in vertical displacement between different sides of the load carrying components become significant over longer distances
Solution Approach 1:
The patent combines multiple independent winches into a single integrated load transporting unit with a common control system. This merging allows synchronized operation of multiple cables, ensuring that the load carrying structure remains level even over long vertical distances, thereby resolving the contradiction between travel distance and levelness precision
Solution Approach 2:
The control system continuously monitors the position and levelness of the load carrying structure, using feedback signals to adjust the operation of individual winches in real-time. This feedback mechanism ensures that vertical displacement differentials are corrected dynamically, maintaining manufacturing precision regardless of travel distance
2Speed
If multiple independent hoist lines are used to transport loads, then the load can be moved vertically, but the load and support deviate from a preferred level or horizontal orientation due to non-identical performance of the hoist lines
Solution Approach 1:
The system dynamically adjusts the speed of each hoist line based on real-time conditions and performance variations. By making the hoist lines dynamically controllable rather than operating at fixed speeds, the system maintains horizontal orientation stability while achieving efficient vertical transport
Solution Approach 2:
The control system changes operational parameters such as hoist line speed and tension independently for each line to compensate for performance differences. This parameter adjustment ensures that all hoist lines work in unison, preventing deviation from horizontal orientation while maintaining transport speed
3Ease of operation
If conventional load transporting devices are used, then loads can be moved vertically, but automation to stabilize the load carrying structure is lacking, requiring manual intervention
Solution Approach 1:
The load transporting unit incorporates automatic stabilization capabilities that allow the system to self-correct orientation deviations without manual intervention. The control system autonomously monitors and adjusts hoist line operations to maintain levelness, eliminating the need for continuous manual control while improving ease of operation
Data Source
AI summary
A system structured to transport a load carrying structure along the vertical direction while maintaining a substantially horizontal orientation thereof. A lifting assembly includes at least one lifting devices movably connected to the load carrying structure via a corresponding hoist line. The lifting device is configured to control the hoist line to accomplish raising or lowering of the load caring structure. A detection assembly, including at least one inclinometer determines an angle of inclination of the load carrying structure during the vertical travel thereof. A control assembly is operatively associated with the lifting assembly and the detection assembly to adjust the operative speed of the lifting device and length of the hoisting line upon a determination of an angle of inclination of the load carrying structure deviating from a predetermined angle of inclination indicative of a level orientation of the load carrying structure.