Crane Guyline Assembly Using an Intermediate Member
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Solution Overview
Problem
Existing crane assembly methods face challenges in connecting a guyline between a strut and a boom due to limited length margin and the need for handling heavy guyline components at high and unstable positions, making the process difficult and inefficient.
Innovation Solution
A crane design incorporating an intermediate member connected to a winch rope, with first and second guylines, allowing the strut to be raised from a fallen position by winding the winch rope, and the intermediate member to guide the guylines to their connection points, facilitating easier alignment and connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the strut guyline is used to connect the raised strut to the boom, then the strut can be secured to the boom, but the guyline may run out of length margin depending on the offset angle of the jib or crane configuration, requiring a worker to pull and handle the heavy guyline on a high boom with poor foothold
Solution Approach 1:
An intermediate member is introduced as a mediator between the winch rope and the strut guyline. The intermediate member includes a rope connection part that connects to the winch rope and a guyline connection part that connects to the strut guyline. This intermediary structure allows the guyline to be pulled and connected without requiring workers to directly handle the heavy guyline on the high boom, thereby maintaining connection reliability while significantly improving ease of operation
Solution Approach 2:
The connection system is segmented into distinct functional components: the winch rope for raising the strut, the intermediate member for force transmission, and the strut guyline for securing the connection. The intermediate member acts as a separate segment that bridges the gap between the winch mechanism and the guyline, allowing each component to perform its specific function independently and reducing the operational difficulties of handling the heavy guyline directly
2Ease of operation
If the guyline is made long enough to reach the connection position on the boom, then the connection can be made without pulling, but the guyline becomes harder to control and handle during the raising process
Solution Approach 1:
The intermediate member serves as a controlled intermediary that manages the guyline tension and positioning. By connecting the winch rope to the intermediate member and then to the guyline, the system maintains precise control over the guyline's deployment and tensioning, avoiding the uncontrolled handling that would result from using an excessively long guyline directly
3Ease of manufacture
If workers directly handle and pull the heavy guyline to connect it to the boom, then the connection can be made, but the work becomes difficult and time-consuming on a high boom with poor foothold
Solution Approach 1:
The intermediate member eliminates the need for workers to directly handle and pull the heavy guyline on the high boom. The winch mechanism pulls the intermediate member, which in turn tensions and positions the guyline for connection. This automated force transmission through the intermediary structure dramatically reduces assembly difficulty and connection time while maintaining safety
Solution Approach 2:
The winch mechanism performs the work of pulling and positioning the guyline connection automatically. By connecting the winch rope to the intermediate member, the system uses the winch's own winding action to self-position and tension the guyline, eliminating the need for manual pulling operations by workers on the high boom
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
Improves the workability of connecting guylines by allowing the strut to be raised and aligned with boom connection points more efficiently, reducing the strain on, facilitating easier and safer attachment of the guyline connections, enabling safer and more efficient assembly of the crane components, thereby enhancing the overall assembly process.
Implementation Method 1
The winch performs a winding motion and a delivery motion. The winch rope includes a rope tip part that is moved, in a direction to approach the winch, by the winding motion.
Implementation Method 2
The winch performs a winding motion and a delivery motion. The winch rope is wound to the winch by the winding motion and delivered from the winch by the delivery motion.
Data Source
AI summary
Provided are a crane enabling workability to be improved about connecting a guyline for interconnecting a strut and a boom to the boom, and a crane assembly method. A rope tip part of a winch rope is connected to an intermediate member in a state where a boom and a jib have been fallen on the ground. A winch performs a winding motion of winding the winch rope, thereby raising a strut and making the intermediate member approach a guyline connection part of the boom to allow a boom connection end part of a second guyline that is connected to the intermediate member to be connected to the guyline connection part.