Modular Crane Hook Weight Arrangement for Tensile Load Management
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Solution Overview
Problem
Existing crane hook weight arrangements are cumbersome and difficult to handle due to their large size and weight, especially when a double pull is required, as they need to manage a significant tensile load without adequate mechanical assistance.
Innovation Solution
A modular crane hook assembly with a hook weight body and an additional weight component, where the additional weight is composed of annular jacket parts that surround the hook weight body, allowing for adjustable tension and easier handling by enabling the use of additional weight only when needed, and featuring a rope pulley system for efficient rope guidance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a large hook weight is used to generate sufficient tensile load in the rope, then the required tensile load is achieved, but the handling difficulty increases significantly
Solution Approach 1:
The hook weight is divided into a hook weight body and separate additional weights that can be attached or removed as needed. This segmentation allows the operator to handle only the essential hook weight body, while additional weight is added only when sufficient tensile load is required, thereby resolving the contradiction between achieving adequate force and maintaining ease of operation
2Force
If additional weight is fixed onto the hook weight body, then the tensile load in the rope is increased, but the handling difficulty increases
Solution Approach 1:
The additional weight is designed to be dynamically attachable and detachable from the hook weight body rather than being permanently fixed. This dynamic configuration allows the system to adapt its weight according to operational requirements, enabling the operator to handle the lighter hook weight body alone when full tensile load is not needed, while still achieving sufficient force when additional weight is attached
3Force
If a single large additional weight is used, then the required tensile load is achieved, but the handling and positioning accuracy deteriorate
Solution Approach 1:
The additional weight is segmented into multiple separate weights that can be individually positioned around the hook weight body. This segmentation enables precise control over weight distribution, allowing each segment to be placed to achieve even balancing, thereby resolving the contradiction between achieving sufficient tensile load and maintaining weight distribution precision
4Adaptability or versatility
If the hook weight arrangement is designed for universal use, then adaptability is improved, but device complexity increases
Solution Approach 1:
The hook weight body is designed with a universal interface that can accommodate various additional weights and configurations. The annular groove and positioning elements provide a standardized mounting system that works across different weight combinations, enabling universal applicability without requiring complex specialized designs for each application scenario
Data Source
AI summary
A crane hook assembly having a hook weight arrangement serves for applying a tension load to a rope (2). The rope can be wound onto or off a rope drum on a crane and lifts or lowers the crane hook (4). The hook weight arrangement (1*) includes a hook weight body (3) connected to the rope (2) and an additional weight (26) which is attachable thereto. The rope (2) is guided through an opening (10, 6) in the hook weight body (3, 3*), and the crane hook (4) is attached on the bottom end (20) of the hook weight body (3, 3*).