CS243767B1 - A device for signaling the seizure of rolling spindle chisels of machines of non-cracking rock decoupling - Google Patents

Abstract

The invention relates to the field of mining, where non-explosive rock breaking machines are used, using rolling drill bits for breaking rocks. The device for signaling the seizure of rolling drill bits of non-explosive rock breaking machines operates on the principle of voltage induction in a sensor, which is placed in a field of rotating permanent magnets, each rolling drill bit having permanent magnets attached to the body along the circumference of one side of the body of the drill bit, opposite to which are located in the holder body connected to an amplifier connected to the transmitter. The receiver is either connected to the transmitter, or is adapted for wireless contact with the transmitter and since it is connected to a power source, the signals from the transmitter can be processed in auxiliary relays for each rolling drill bit and the auxiliary relay is connected to a light and sound signaling device for the seizure of rolling drill bits. The invention can be used in all fields where rolling drill bits are used to break up rocks.

Description

The invention relates to the field of mining, where machines are used for unbreakable rock disintegration using rock drilling chisels for rock disintegration.

The device for signaling seizure of rolling drill chisels of machines for unbreakable rock disintegration works on the principle of induction of voltage in the sensor, which is stored in the field of rotating permanent magnets, each rolling chisel has in the body circumferentially one in the holder body connected to an amplifier connected to the transmitter. The receiver is either connected to the transmitter or is adapted to be wire-free with the transmitter, and since it is connected to a power source, the signals from the transmitter can be processed in the auxiliary relays for each rolling chisel and the auxiliary relay is connected to the rolling drilling chisels.

Application of the invention is possible in all fields where rolling chisels are used for rock disintegration.

243707

BACKGROUND OF THE INVENTION The present invention relates to a device for signaling seizure of rolling drill bits.

The prior art non-cracked rock disintegrating machines employing roller drilling chisels for rock disintegration have no signaled seizure of rolling drilling chisels. Therefore, when the chisel is restrained, it is destroyed by grinding the cutting ring and the chisel body from the rotational movement of the expansion head and the thrust of the rolling chisel. In this way, the rolling drilling chisels are quite often destroyed, which places increased time demands on their replacement and also economic consequences in terms of chisel prices.

The present invention provides a device for signaling the seizure of rolling drill bits that allows the rotational movement of the drill bits to be sensed and, in the event of stopping movement of one or more of the rolling blades, no voltage is induced in the sensor mounted in the rotating permanent magnet field. will be reflected in the dynamic operation of the device according to the invention, ie signaling. It is basically a known principle of the ignition system "Magneto".

In view of the novel effects of the invention, it should be noted that the device according to the invention will assist the trouble-free operation of rock-free rock disengagement machines operating on the principle of using rolling drill bits, since overrun of rolling blades increases disproportionately overload. In addition, the device according to the invention also signals a short interruption. work of rolling chisels whether or not. because of various caverns in the rock, or chisel slip, which gives a picture of chisel wear.

^To: the attached Figure. 1 and FIG. 2 shows an exemplary embodiment of the invention for shear-free rock disengagement machines such as chimney sets and tunneling machines.

In the drawing, FIG. 1 shows an exemplary embodiment of an inventor for a rolling boring chisel, and FIG. 2 is a cross-sectional view of a rolling drilling d-substance. where permanent magnets are stored.

The device according to the invention consists of permanent magnets 3 which are housed in the body of the rolling boring chisel 1. In the holder 2 of the rolling-boring chisel 1 a sensor 4 of induced AC voltage is mounted, from which the cables 5 are led. induced alternating voltage arising from the rotary movement of the rolling drill chisel 1. By means of the trimmer-8, the forward signal from the sensor 4 is amplified and transmitted by the transmitter 7 either via the wires 8 or wirelessly to the receiver 9 which is supplied from the power supply 12 using the receivers 9 are processed by means of the relays 13, for each rolling drill bit, the signals of the rotation of the rolling drill bit 1 are processed. In the case of stopping the rotation of the rolling drill bit 1 the relay 13 in the receiver 9 'responds by closing the contacts 13 of the relay 13. and an audible signaling device

11th

Claims (1)

SUBJECT A device for signaling the seizure of drill chisels of the machine for non-cracked rock uncoupling, operating on the principle of voltage induction in a sensor mounted in the field of rotating permanent magnets, is characterized in that each rolling bore (1) mounted on a shaft! in the holder (2) has permanently magnets (3) attached on the circumference of one side of the body, while on the same side of each holder (2) opposite to the permanent magnets (3) there is a sensor (4j) connected to the amplifier (4) 6) signal-connected to the transmitter (7), this is either the conductor (8) connected to the receiver (9), or the receiver (9j is adapted for wireless connection with the transmitter (7), the receiver (9) is connected to the source current (12), comprising an auxiliary relay [13j] for each rolling boring chisel (1) and, furthermore, a receiver (9) connected to a light and audible signaling device (11) by a conductor (10).