Telescopic Boom Guide Frame for Variable Length Adjustment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing cranes with telescoping booms face limitations in extending boom length without substantial changes to the telescopic system, particularly in achieving longer lengths like 100 meters while maintaining efficiency and material usage.
Innovation Solution
The introduction of a detachable guide profile head and an adaptable guide frame that can replace the original guide profile head, allowing the crane to expand its boom length by inserting additional sections, while maintaining the same safety locking unit configuration, thereby enabling flexible and variable telescoping lengths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If additional boom sections are inserted to extend the boom length, then the boom length increases, but the telescopic system becomes more complex
Solution Approach 1:
The boom is divided into multiple telescopic sections that can be inserted and removed independently. The guide profile head is segmented into a detachable component that can be separated from the safety locking unit, allowing selective insertion of additional sections without redesigning the entire telescopic system.
Solution Approach 2:
The guide frame is designed as a universal component that can accommodate different configurations of boom sections. The detachable guide profile head can be removed and replaced with an extended guide frame, allowing the same basic structure to support both 50-meter and 100-meter boom lengths.
2Length of moving object
If the boom is extended to 100 meters, then the working range increases, but the material usage and weight increase
Solution Approach 1:
Additional boom sections are designed to nest within the existing telescopic structure when not in use. The sections can be inserted into the guide frame and secured by the safety locking unit, allowing the boom to extend to 100 meters only when needed, thereby reducing material usage compared to a permanently long boom.
Solution Approach 2:
The boom length is made dynamically adjustable rather than fixed. The detachable guide profile head and interchangeable guide frame configurations allow the boom to be extended to 100 meters for long-range operations and reduced to 50 meters for shorter tasks, optimizing material usage based on actual operational requirements.
3Adaptability or versatility
If a fixed guide profile head is used, then the structure is simpler, but the boom length cannot be variable
Solution Approach 1:
The guide profile head is extracted from the fixed structure and made detachable from the safety locking unit. This allows the guide profile head to be removed and replaced with an extended guide frame, enabling variable boom lengths while maintaining relative structural simplicity.
Solution Approach 2:
The guide profile head structure is transformed from a fixed configuration to a dynamic, interchangeable component. The detachable design allows quick replacement with different guide frame configurations to match different boom length requirements, providing adaptability without substantial structural complexity.
4Weight of moving object
If the cylinder weight is reduced for shorter boom lengths, then the material usage decreases, but the lifting capacity may be insufficient for longer booms
Solution Approach 1:
The cylinder specifications are made dynamically adaptable to the boom length configuration. When additional sections are inserted to extend the boom to 100 meters, the cylinder can be upgraded to provide sufficient lifting capacity. When the boom is reduced to 50 meters, a lighter cylinder can be used, optimizing the weight-strength relationship for each configuration.
Solution Approach 2:
The cylinder parameters (weight, capacity) can be changed based on the operational requirements. The system allows selecting appropriate cylinder specifications matched to the current boom length configuration, rather than using a fixed oversized cylinder for all lengths, thereby reducing material usage while maintaining sufficient lifting capacity.
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
This solution allows for efficient length adjustment from 50 meters to 100 meters and back, reducing material usage, cylinder weight, and pipe thickness, enabling a versatile crane configuration with a basic unit that can be easily adapted to various boom lengths.
Implementation Method 1
can telescope in and out individually, by a hydraulic piston-cylinder unit after disengaging locking pin connections
Data Source
AI summary
A crane having a telescoping boom whose sections, are arranged in a base boom that can telescope individually, in and out, after disengaging locking pin connections that are secured in the respective moved out or moved in positions by locking pins. A guide profile head is arranged at an end remote of the articulation of the safety locking unit to the inner end of the base boom. To lengthen the boom without substantially changing the telescopic system itself, the guide profile head is detachably fastened to the safety locking unit. An additional guide frame, whose length is dimensioned corresponding to the length of the telescoping boom that has been expanded by additional sections inserted in the telescoping boom, is mounted in place of the guide profile head, and that a guide profile head can be arranged at the free end of the guide frame.