Swing Damper Disc Brake Segmentation
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Solution Overview
Problem
Existing swing dampers for crane tools fail to provide effective and reliable braking of pendulating movements, leading to uneven wear and frequent adjustments, and do not allow for easy servicing or replacement of braking components without disassembling the tool.
Innovation Solution
A compact brake arrangement with independent tensioning and bearing systems, featuring a disc brake unit that can be easily serviced and adjusted, allowing for quick replacement of components without disassembling the tool, and is designed to provide consistent braking performance and long service life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional swing damper design is used, then the structure is simple, but the braking action is uneven and wear is non-uniform
Solution Approach 1:
The brake arrangement is segmented into independent components: a brake unit with brake shoes and a separate tensioning unit with tensioning members. This segmentation allows each component to be optimized independently - the brake unit provides reliable braking while the tensioning unit ensures uniform pressure distribution, resolving the contradiction between braking reliability and structural complexity.
Solution Approach 2:
The tensioning members are designed to be dynamically adjustable, allowing the brake shoes to be positioned and tensioned independently. This dynamic adjustment capability ensures uniform wear and reliable braking performance while maintaining a modular structure that doesn't significantly increase overall complexity.
2Ease of repair
If the brake arrangement is integrated into the swing damper, then the structure is compact, but the braking elements cannot be replaced without disassembling the tool
Solution Approach 1:
The brake unit is segmented as a separate, self-contained module that can be removed and replaced independently from the swing damper assembly. The tensioning unit is also segmented with individually replaceable tensioning members. This segmentation enables easy maintenance and replacement of braking elements without requiring complete disassembly of the tool, while maintaining a compact integrated design during operation.
Solution Approach 2:
The brake unit and tensioning unit are nested within the swing damper structure in a space-efficient manner. The brake shoes are positioned within the pivot bearing assembly, and the tensioning members are arranged to compress the brake unit from within. This nesting achieves compactness while preserving modular replaceability of individual components.
3Manufacturing precision
If multiple tensioning members are used, then uniform pressure and wear are achieved, but the adjustment mechanism becomes more complex
Solution Approach 1:
The tensioning system is segmented into multiple independent tensioning members (at least two) that can be adjusted separately. Each tensioning member independently applies pressure to the brake shoes, ensuring uniform pressure distribution across the brake lining. This segmentation achieves precise wear uniformity while keeping each individual tensioning mechanism relatively simple.
Solution Approach 2:
The tensioning members serve multiple functions: they apply braking pressure, ensure uniform wear distribution, and can be independently adjusted for fine-tuning. This multi-functionality reduces the need for additional separate adjustment mechanisms, thereby limiting the increase in overall system complexity despite using multiple tensioning members.
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 achieves smooth braking, uniform wear, and extended adjustment intervals, enabling quick service stops and protecting the brake unit from mechanical damage, while maintaining technical and economic advantages for both single and double-type swing dampers.
Implementation Method 1
The brake unit (60) is compressed by the tensioning member (90) with the result that the discs (70, 80) are pressed together. This affords braking of the swinging movement
Implementation Method 2
a spring pack (93, 94) consisting of mutually opposed cup springs (101)
Data Source
AI summary
The present invention relates to an arrangement and to a method relating to a swing damper (1) for carrying a tool (5) that hands from a crane arm (2) or the like. The swing damper (1) includes an upper part (11) that is connected to the crane arm (2), and a lower part (12) that carries a working implement (5) or the like either directly or via a rotator (4), for instance. The upper part (11) and the lower part (12) are pivotally connected to one another via a pivot joint (13). The swing damper (1) also includes a brake arrangement (50). The brake arrangement (50) includes a brake unit (60) that has discs (70, 80) which are pivotal about the pivot shaft (14) of the swing joint (13), wherein at least one (70) of said discs is secured against rotation relative to the upper part (11), and wherein at least (80) of said discs is secured against rotation relative to said lower part (12). The arrangement also includes a tensioning element (90; 110; 130) which functions to press the discs (70, 80) together in a braking operation. The brake unit (60) is situated in a space (200) between two pivot hearings (46) between the upper part (11) and the lower part (12).