Grinding Tool Using Pressure Waves for Low-Wear Rock Comminution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing technologies for crushing, drilling, or sawing rock on construction sites are prone to significant wear, making them inefficient for prolonged use.
Innovation Solution
A shredding tool that utilizes pressure waves generated by an actuator, such as a piezoelectric element or magnetic element, to crush rock in a cutting fluid, reducing wear by allowing contactless energy input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If rotary-driven drill bits or diamond drill bits are used for drilling rock, then drilling capability is achieved, but tool wear is significant
Solution Approach 1:
The patent replaces the mechanical contact-based drilling system with an acoustic field-based system. An actuator generates acoustic waves that propagate through cutting fluid to crush rock, eliminating direct mechanical contact between the tool and rock, thereby preventing tool wear and extending service life
Solution Approach 2:
The patent introduces cutting fluid as an intermediary medium between the actuator and the rock. The acoustic waves travel through this fluid medium to transmit energy to the rock for crushing, while the fluid also protects the tool from direct contact with the rock, preventing wear
2Adaptability or versatility
If kidney stone lithotripters are used to generate pressure waves, then rock crushing capability is achieved, but the method cannot be applied to construction sites
Solution Approach 1:
The patent extracts the pressure wave generation capability from the water-filled tub environment of kidney stone lithotripters and applies it directly to construction site rock crushing. The actuator generates pressure waves that work effectively in cutting fluid without requiring immersion of the workpiece in water
Solution Approach 2:
The patent adapts the pressure wave generation parameters and medium for construction applications. By using cutting fluid instead of water and adjusting the acoustic parameters, the system achieves effective rock crushing on construction sites while maintaining operational feasibility
3Reliability
If contact-based mechanical drilling is used, then drilling function is achieved, but contact abrasion causes tool wear
Solution Approach 1:
The patent replaces the mechanical contact drilling system with an acoustic field-based system. The actuator generates acoustic waves that propagate through cutting fluid to crush rock, eliminating direct mechanical contact between the tool and rock, thereby preventing tool wear
Solution Approach 2:
The patent introduces cutting fluid as an intermediary medium that transmits acoustic energy from the actuator to the rock while protecting the tool from direct contact and abrasion
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 tool achieves low-wear rock crushing by leveraging cavitation-induced pressure waves, allowing for efficient drilling or sawing operations with reduced tool wear and increased operational efficiency.
Implementation Method 1
The pressure wave can generate cavitations in the cutting fluid and/or at an interface of the cutting fluid
Implementation Method 2
The pressure wave can generate cavitations in the cutting fluid and/or at an interface of the cutting fluid. The cavitations can crush the rock or contribute to the crushing process
Implementation Method 3
The actuator can comprise a piezoelectric element for generating the pressure wave
Implementation Method 4
For example, the actuator can comprise an arc generator to generate an arc, in particular an arc pulse, that locally heats water at high speed
Implementation Method 5
For this purpose, it is also conceivable for the actuator to comprise at least one laser
Data Source
Figure 1~2
AI summary
The invention relates to a comminution tool (12) for comminuting rock (32) by means of pressure waves (48, 52) in a cutting fluid (20), wherein the comminution tool (12) has a housing (34) with a working opening (66), wherein cutting fluid (20) is located in the housing (34) and/or wherein the comminution tool (12) has an inlet (24) for cutting fluid (20), wherein rock (32) to be comminuted can be approached to the working opening (66) for comminution and/or introduced into it, and the comminution tool (12) has an actuator (46) for generating a pressure wave (48, 52) in the cutting fluid (20). The invention further relates to a machine tool (10) and a cutting fluid (20). They enable particularly low-wear comminution of rock (32).