Bracket-Shaped Crane Frame Segmentation for Simplified Assembly
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Solution Overview
Problem
The assembly of surrounding frames for tower slewing cranes is complex due to the need to rotate U-shaped elements 90° and ensure they do not collide with the crane tower, requiring additional securing means like chains or ropes.
Innovation Solution
A bracket-shaped connection element with an auxiliary suspension and articulated latching element simplifies assembly by eliminating the need for complex rotations and collisions, allowing for easier positioning and secure attachment to the crane tower.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a U-shaped element is used for the surrounding frame, then the crane tower can be surrounded from three sides, but the assembly process becomes complex requiring 90° rotation and additional securing means
Solution Approach 1:
The surrounding frame is divided into a U-shaped element and a separate latching element. The U-shaped element provides the three-side enclosure while the latching element independently provides the fourth side closure. This segmentation allows the U-shaped element to be positioned without complex rotation, as the latching element can be attached separately to complete the enclosure.
Solution Approach 2:
The latching element is extracted as a separate component from the U-shaped element. This allows the U-shaped element to be assembled in a simplified manner without needing to rotate 90°, while the latching element is subsequently attached to provide the closing side, eliminating the need for complex positioning maneuvers.
2Ease of operation
If the surrounding frame is transported in a perpendicular position, then it can be easily suspended, but it requires 90° rotation to reach the horizontal assembly position
Solution Approach 1:
By segmenting the surrounding frame into a U-shaped element and a latching element, the U-shaped element can be transported in the perpendicular position for easy suspension, while the latching element is transported separately. This eliminates the need to rotate the entire frame structure 90°, as only the latching element needs to be positioned after the U-shaped element is already in place.
3Reliability
If additional securing means like chains or ropes are used, then the surrounding frame can be secured during transport, but the assembly process becomes more complex
Solution Approach 1:
The latching element is extracted as a separate component that integrates the securing function. Instead of using additional chains or ropes to secure the surrounding frame during transport and assembly, the latching element itself provides both the structural closure and the securing mechanism, eliminating the need for separate securing means.
Data Source
AI summary
A surrounding frame can be attached to a crane tower of a tower slewing crane and can connect the tower slewing crane to an object, for example a building, having a flexurally stiff connection element and a latching element. The connection element is provided in the form of an element that horizontally supports the crane tower in the anchorage plane at two outer sides. A method of assembling the surrounding frame and a use of a surrounding frame for connecting a tower slewing crane to an object are also described.