Bush Hammering Disc Structure With Vibration-Damping Coupling
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Solution Overview
Problem
Existing bush hammering machines for road surfaces have a short lifespan, require frequent repairs, and produce high vibration levels, leading to equipment damage and discomfort for the driver, while also failing to effectively smooth out larger bumps in the surfacing.
Innovation Solution
A device with a stiff, rotatable hammering unit comprising two flat discs connected via vibration-damping coupling elements, allowing for accurate surface processing with a high degree of flatness and reduced vibration transmission, enabling efficient smoothing of large bumps and extended equipment lifespan.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple parallel discs with bush hammers are used to process surfacing, then the productivity increases, but the device complexity increases and reliability decreases due to frequent repairs and short lifespan
Solution Approach 1:
The surfacing is processed by multiple hammer wheels arranged on a single disc, dividing the processing function across multiple impact points rather than requiring multiple separate discs. This segmentation maintains productivity while simplifying the overall structure to improve reliability
Solution Approach 2:
Multiple hammer wheels are combined on a single disc structure, merging what would traditionally require multiple separate discs into one unified component. This reduces device complexity and potential failure points while maintaining the ability to process wide surfaces efficiently
2Productivity
If multiple parallel discs with bush hammers are used to process surfacing, then the productivity increases, but the device complexity increases
Solution Approach 1:
Multiple hammer wheels that would traditionally require multiple separate discs are instead mounted on a single disc structure. This merging of components reduces device complexity while maintaining the productivity benefits of multiple simultaneous hammering points
Solution Approach 2:
A single disc serves multiple functions by supporting multiple hammer wheels, making the disc a multi-functional component that performs the work of what would traditionally require several separate discs, thereby reducing overall device complexity
3Productivity
If bush hammering is performed with traditional machines, then the surfacing can be processed, but high vibration levels occur causing discomfort and damage
Solution Approach 1:
A damping element is introduced as an intermediary between the disc and the vehicle frame. This mediator absorbs and reduces vibration transmission, protecting the vehicle and driver from harmful vibrations while maintaining the productivity of the bush hammering operation
Solution Approach 2:
The vibration energy generated by the hammering action is converted from a harmful factor into a beneficial one by using it to effectively break up and process the surfacing material, while the damping element manages the residual vibrations to prevent damage and discomfort
4Manufacturing precision
If traditional bush hammering machines are used, then the surfacing can be processed, but the final result is insufficient for larger bumps
Solution Approach 1:
Different regions of the disc are equipped with hammer wheels at specifically optimized positions and angles. This local optimization ensures that each hammer wheel is strategically placed to effectively address specific surface irregularities, including larger bumps, thereby improving both precision and effectiveness
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 device achieves a high degree of surface flatness with reduced vibration impact, allowing for effective processing of larger areas with minimal maintenance needs and improved driver comfort, while effectively smoothing out bumps and extending equipment lifespan.
Implementation Method 1
the coupling elements are vibration-damping coupling elements which are configured to provide a vibration-damping coupling between the first and second disc
Data Source
AI summary
The invention relates to a device for processing a hard surfacing, the device comprising a rotatable hammering unit configured to process the hard surfacing under the hammering unit with hammers, the hammering unit comprising a substantially flat first and second disc with a number of hammer wheels on the underside of the second disc, wherein the coupling between the first and second disc is formed by one or more vibration-damping coupling elements. The invention also relates to a method for processing a hard surfacing with a vehicle provided with the device described herein.