Cylindrical Texturing Head with Hydrostatic Drive
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Solution Overview
Problem
Conventional pavement grinders face limitations in torque supply due to mechanical drive systems, affecting the precision and efficiency of grinding and grooving operations, particularly in aligning adjoining cuts for even pavement surfaces.
Innovation Solution
A substantially cylindrically-shaped pavement texturing head with adjacently arranged disc-shaped grinding members forming a circumferential grinding zone, featuring undulating ridges and troughs, which can be adjusted in diameter and profile to enhance cutting depth and alignment, and can be implemented on various grinders for concrete and asphalt surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If mechanical drive systems with belts and pulleys are used to drive the arbor, then the grinder can operate with conventional components, but the torque supplied to the arbor is limited
Solution Approach 1:
The patent replaces the conventional mechanical belt and pulley drive system with a direct drive system where the engine is coupled directly to the arbor. This substitution eliminates the intermediate mechanical transmission components, thereby increasing the torque supplied to the arbor while reducing mechanical complexity and energy losses associated with belt slippage and pulley friction.
2Productivity
If the width of the cutting path is increased to reduce operation time, then productivity improves, but aligning adjoining cuts becomes more difficult
Solution Approach 1:
The patent employs a hydrostatic drive system that enables dynamic and precise control of the arbor's rotational speed and position. This dynamic control allows the operator to precisely align adjoining cuts even when using a wider cutting path, thereby maintaining manufacturing precision while improving productivity through faster coverage of the pavement surface.
Solution Approach 2:
The hydrostatic drive system incorporates feedback mechanisms that provide precise control over the arbor's rotation and positioning. This feedback enables real-time adjustments to maintain accurate alignment between adjoining cuts, allowing the use of wider cutting paths without sacrificing alignment precision.
3Manufacturing precision
If conventional mechanical drive systems are used, then the system is simpler to implement, but the cutting depth control and alignment precision are reduced
Solution Approach 1:
The patent replaces the conventional mechanical drive system with a hydrostatic drive system that uses hydraulic fluid under pressure to transmit power to the arbor. This substitution provides precise control over cutting depth and alignment through hydraulic pressure regulation and flow control, achieving superior manufacturing precision despite increased system complexity.
Solution Approach 2:
The patent utilizes a hydrostatic drive system that employs hydraulic fluid to transmit mechanical power from the engine to the arbor. This hydraulic system enables precise control of cutting depth and rotational speed through pressure and flow regulation, significantly improving cutting depth control and alignment precision compared to conventional mechanical systems.
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 enables precise and efficient grinding and grooving with improved cutting depth control, reducing the time required for operations and ensuring an even pavement surface by increasing the torque distribution and alignment precision.
Implementation Method 1
The diamond tipped blades which are used to grind the concrete or asphalt surface
Data Source
AI summary
The present disclosure presents a substantially cylindrically-shaped pavement texturing head. The pavement texturing head can include a plurality of substantially round, disc-shaped grinding members adjacently arranged and substantially aligned, one with the others, along a common rotational center axis. Additionally, the grinding members establish a circumferential grinding zone around the pavement texturing head. Furthermore, the grinding zone includes a plurality of grinding segments collectively forming an exterior surface around the substantially cylindrically-shaped pavement texturing head and having an exposed peripheral profile taken parallel to the common rotational center axis comprising undulating ridges and troughs.