Rope Hoist Guide with 90-Degree Pivoting Support
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Solution Overview
Problem
Existing rope hoist guiding devices struggle to securely and evenly guide hoisting ropes on rope drums, particularly under forces exerted during hoisting operations, leading to swinging and vibrations that reduce the service life of equipment and limit the number of rope pulleys and rope drum diameters.
Innovation Solution
A rope guiding device with a support arrangement featuring first and second pivotings adapted to a 90-degree angle, utilizing interconnected parallel pivotings and flexible support elements to dampen forces and maintain the rope angle within optimal limits, allowing for secure and even guidance of the hoisting rope.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional rope guiding device is used, then the rope can be guided on the rope drum, but the device cannot effectively dampen lateral and diagonal forces, causing swinging and vibrations that reduce service life
Solution Approach 1:
The rope guiding device is designed with movable guiding elements that can dynamically adjust their position along the rope drum circumference. The guide member moves between first and second end positions corresponding to different rope layers, automatically adapting to the winding process and dampening forces through controlled movement rather than rigid fixation.
Solution Approach 2:
The invention changes the operational parameters of the guiding device by allowing the guide member to vary its position continuously during operation. The guide member's position parameter changes from one end position to another as the rope drum rotates, enabling the device to maintain optimal guiding angle and dampen forces across different winding stages.
2Reliability
If the rope angle is kept within four degrees, then the rope stays properly on the drum and wear is reduced, but the number of rope pulleys and available diameter relations are limited
Solution Approach 1:
The guiding device enables dynamic adjustment of the rope guiding angle throughout the winding process. As the rope drum rotates and layers are built, the guide member automatically moves to maintain the optimal four-degree angle, allowing the system to accommodate various pulley configurations and diameter relations without compromising rope stability.
Solution Approach 2:
The invention creates a universal guiding solution that can accommodate multiple rope configurations, pulley arrangements, and drum diameter relations. The movable guide member design allows the same device to adapt to different roping setups, eliminating the need for specialized guiding devices for each configuration.
3Ease of operation
If manual control of the guide member is used, then servicing and rope replacement is simplified, but automatic operation during hoisting cannot maintain optimal rope angles
Solution Approach 1:
The guiding device is designed to be self-regulating during automatic operation. The guide member automatically moves between end positions based on the rotational position of the rope drum, maintaining optimal rope angles without external control input. The system uses the drum's own rotation to drive the guide member's movement, creating a self-service mechanism that maintains precision during hoisting operations.
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 solution effectively dampens lateral and diagonal forces, reducing equipment stress and extending the service life of the hoisting device while enabling more flexible roping configurations and pulley arrangements.
Implementation Method 1
The support arrangement which comprises first pivotings and second pivotings adapted to a substantially 90-degree angle in relation to said first pivotings
Data Source
AI summary
A rope guiding device used in connection with the rope hoist to guide a hoisting rope. The inventive rope guiding device of a rope hoist for guiding a hoisting rope on a rope drum which rope drum may be adapted to rotate in order to wind the hoisting rope around the rope drum or off the rope drum to hoist and lower a load adapted on the hoisting rope, the rope guiding device comprising at least one guiding element to guide the hoisting rope of the rope hoist, and a screw to move said at least one guiding element, is characterized in that wherein the rope guiding device is supported to the body of a trolley of the rope hoist by means of a support arrangement which support arrangement comprises first pivotings and second pivotings adapted to a substantially 90-degree angle in relation to said first pivotings.