JPS6399182A - Ultrasonic rock drill - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to ultrasonic rock crushing using ultrasonic vibration.

<Prior art> A conventional rock crusher crushes rocks by reciprocating a piston inside the cylinder using an air or hydraulically driven cylinder and striking a cutter or chisel supported by a cutter holder at the tip of the cylinder. It is something to do.

Problems to be Solved by the Invention In the conventional rock crusher as described above, the piston reciprocates violently within the cylinder, and this piston hits the rear end of the cutter, making a lot of noise and causing pollution. In addition, there were problems such as white wax disease and other negative effects on the body of workers.

Means for Solving the Problems> This invention was made to solve the above problems, and includes an ultrasonic vibrator built into the main body of the rock crusher, and a tip of the ultrasonic vibrator. A cutter vibrated with an i11 width by the vibrator is connected, the cutter projects from the tip of the main body, and the ultrasonic vibrator is connected to an ultrasonic oscillator.

Since this invention is constructed as described above, the tip of the cutter is pressed against the target rock, concrete, etc. using the main body of the rock crusher, and the electric vibrations generated by the ultrasonic oscillator are converted into mechanical vibrations by the ultrasonic vibrator. This vibration is amplified by a horn and transmitted to the cutter.

As described above, when the cutter is pressed against rock or concrete while being vibrated ultrasonically, the cutter gradually bites into the rock or concrete and crushes it.

Further, at this time, if a mixed solution of abrasive grains and water is poured into the contact area between the cutter and the rock or concrete, the cutting efficiency of the cutter will be further improved.

<Embodiment> FIG. 1 shows an embodiment of the present invention. Reference numeral 1 indicates a rock crusher main body made of metal or the like, and an ultrasonic vibrator 2 is fixed in the rear part of the main body.

A horn 5 is fixed to the tip of this vibrator 2 with a screw 4,
A cutter 6 is fixed to its tip.

The cutter 6 is available in various shapes, such as one with a sharp tip and one with a chisel shape, and can be replaced depending on the purpose.

Moreover, the material used is hard and strong, such as steel or ceramic. Various dimensions are used, but for example, 5
It is about 00m4 to 2000m4n.

7 indicates an ultrasonic oscillator. This oscillator 7 includes, for example, a piezoelectric element and a transistor made of crystal, ceramic, etc.
It is composed of capacitors, choke coils, etc.
Generates ultrasonic electrical vibrations.

This ultrasonic electric vibration is transmitted to the ultrasonic vibrator 2 through the electric cord 8, causing the vibrator 2 to mechanically vibrate;
This vibration is amplified by the horn 5 and transmitted to the cutter 6, so that the cutter 6 vibrates ultrasonically.

Reference numeral 9 denotes a power supply device, which is composed of an internal combustion engine 10 and a generator 7J11 driven by this internal combustion engine 10.
and the above-mentioned ultrasonic oscillator 7 are connected by a power cord 12.

Therefore, the ultrasonic oscillator 7 may also be incorporated into the power supply device 9.

In the embodiment shown in FIG. 2, a plurality of ultrasonic vibrators 2 are arranged in parallel to vibrate the cutter 6 with a large force.

Although the direction of vibration is preferably the front-back direction, the crushing effect can be improved by appropriately using lateral vibration.

In the embodiment, the ultrasonic oscillator 7 is provided at a position separate from the main body 1 and connected to the ultrasonic vibrator 2 of the main body 1 by an electric cord 8, but in the case of a small size, the ultrasonic oscillator 7 7 can also be provided within the main body 1.

In this case, only the power cord 12 is required, making it simple.

<Effects> As described above, this invention vibrates an ultrasonic vibrator by electric vibration from an ultrasonic oscillator, and transmits this vibration to a cutter to cause the cutter to vibrate ultrasonically.
It does not make any noise like conventional rock crushers, so there is no risk of pollution, and work can be done on weekdays.Also, there is no vibration that can be felt by the human body, so it is easier to operate than conventional rock crushers. There is no risk of contracting incurable and incurable diseases such as white wax disease, which causes numbness in the hands, or other occupational diseases.

Furthermore, compared to conventional methods that rely on pressure or rotation of a cutter, there is an effect that the working time can be significantly shortened.

[Brief explanation of the drawing]

FIG. 1 is a side view showing one embodiment of the present invention, and FIG. 2 is a longitudinal sectional side view of main parts showing another embodiment.

Claims (1)

[Claims] An ultrasonic vibrator is built into the main body of the rock crusher, and a cutter that is amplified and vibrated by the vibrator is connected to the tip of the ultrasonic vibrator. An ultrasonic rock crusher characterized in that a child is connected to an ultrasonic oscillator.