Hard-Material Saw With Guide Wheel Depth Control
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Solution Overview
Problem
Existing saws for cutting hard materials like concrete, rock, and asphalt face challenges in maintaining precise cut depth and stability, especially when operating near utilities or structures, and often require multiple hydraulic circuits and specialized machines.
Innovation Solution
A saw design featuring a fixed arbor with a single hydraulic circuit, a cut-depth guide with a guide wheel, and an on-board fluid supply system, allowing for precise cut depth control and operation with a variety of machines, including skid-steer loaders, without the need for additional hydraulic connectors or designated machines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed arbor with single hydraulic circuit is used, then device complexity is reduced and adaptability is improved, but cut depth precision control becomes more challenging
Solution Approach 1:
A mechanical depth control mechanism with a depth gauge and adjustable stop is introduced as an intermediary between the hydraulic system and the cutting blade. This mechanical intermediary provides precise cut depth control without requiring complex hydraulic positioning systems, thereby maintaining simplicity while achieving precision.
Solution Approach 2:
The arbor is designed with adjustable positioning capabilities allowing dynamic modification of cutting depth parameters. The depth control mechanism enables the operator to adjust and lock the arbor position at desired depths, providing both flexibility and precision in a simple mechanical framework.
2Stability of the object's composition
If a guide wheel with mounting plate pressure system is implemented, then cut depth stability is improved, but device complexity increases
Solution Approach 1:
The guide wheel assembly incorporates a self-adjusting pressure mechanism where the mounting plate automatically applies appropriate pressure to maintain cut depth stability. The system uses the natural reaction forces from the cutting process and the mechanical leverage of the mounting plate to maintain consistent pressure without requiring additional active control systems.
Solution Approach 2:
The guide wheel, mounting plate, and depth control mechanism are merged into a single integrated assembly. This combination eliminates the need for separate pressure application systems and integrates multiple functions (guiding, pressure application, depth control) into one compact unit, reducing overall complexity while maintaining stability.
3Manufacturing precision
If the arbor is fixed in position relative to housing, then blade deviation is reduced and cutting precision is improved, but adaptability to different operating conditions decreases
Solution Approach 1:
While the arbor maintains a fixed position relative to the housing during operation to ensure cutting precision, the system incorporates adjustable depth settings and guide wheel positioning capabilities. This allows the fixed arbor to adapt to different cutting depths and operating conditions through mechanical adjustment mechanisms that do not compromise the fixed-position stability during actual cutting.
Solution Approach 2:
The fixed arbor design is made universal through the integration of adjustable depth control mechanisms and compatible guide wheel assemblies. The same fixed arbor can accommodate various cutting applications by adjusting the depth gauge settings and guide wheel positions, providing versatility without requiring multiple arbors or compromising cutting precision.
Data Source
AI summary
The present disclosure provides for a saw for cutting a hard material. The saw includes a housing, a motor mounted to the housing and an arbor mounted in a fixed position relative to the housing. The arbor can further include a saw blade, where the motor turns the arbor to rotate the saw blade. A shield mounted to the housing covers the saw blade, where the shield includes an elongate mark that aligns with the circumferential cutting edge of the saw blade. The housing further includes a cut-depth guide that includes a depth post that passes through a sleeve having a latch that can releasably engages the depth post to fix the position of the depth post relative to the sleeve. A guide wheel extends from the depth post, where the guide wheel contacts the hard surface to maintain a cut depth of the saw blade.