JPH0910902A - Device for detecting rotation of roll - Google Patents

Abstract

PURPOSE: To prevent the damping of sound of a glockenspiel by jumping up a spring engaged with a projection by rotating a roll. CONSTITUTION: The glockenspiel 13 is fitted on the upper part of a receiving seat 12 and a leaf spring 14 is fitted to the one end thereof as a cantilever. A tripper 15 is arranged on the leaf spring 14 and the projecting part slightly projecting toward the roll 11 end is arranged, and a pin 16 is fit projectingly to the side part from the roll 11 end and the projecting part is engaged with this pin. Every time rotating the roll 11 counterclockwise, the pin 16 is abut on the projecting part of leaf spring 14 from the lower side and then, the leaf spring 14 is jumped up. The leaf spring 14 is vibrated and the tripper 15 beats the glockenspiel 13 and then, its own vibrating sound is generated. The glockenspiel 13 generates the sound having different frequency in each of plural rails. The sound is collected through a microphone and this output is analyzed and the rotating condition of each roll is detected with a detected means. By this method, it can be detected whether each roll is smoothly rotated without any trouble or not.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a plurality of rolls, for example, a pinch roll for pulling out a slab in a continuous casting apparatus, a guide roll for guiding a slab, and the like, to determine whether or not each roll is smoothly rotating. A device for detecting.

[0002]

2. Description of the Related Art As a device for detecting the rotation state of a roll,
As a continuous casting apparatus, there is known a continuous casting apparatus in which each roll such as a pinch roll or a guide roll is provided with a detection device including an electric component. Since such electrical components generally have poor heat resistance, they must be cooled with cooling water, or heat-resistant electrical components must be used.

However, cooling the electric components provided for each roll individually with cooling water complicates the structure, and the burden of maintenance management of the cooling water increases, which makes maintenance troublesome. In addition, it is costly to make the electrical components heat resistant.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems in Japanese Patent Application No. 6-21498, the applicant of the present invention has a heat-resistant material and can reliably detect the rotation state of the roll. As shown in FIG. 1, a pinch roll and a guide roll in a continuous casting apparatus are provided with a hitting 1 at the roll end, and each time the hitting 1 rotates together with the roll 2, a sound is generated by hitting the iron quart 3 and each roll. Sounds of different frequencies generated from the Tekkin 3 are collected by a microphone, the frequencies of the microphone outputs are analyzed, and it is detected whether or not the individually detected frequencies are generated in a constant cycle,
When there is a frequency that does not occur in a fixed cycle, we proposed a detection device that displays the sound source corresponding to that frequency and displays an anomaly. FIG. 2 shows the system.

According to this device, the striking piece and the xylophone have a simple structure and do not need to be cooled, and only one microphone needs to be provided for each of the plural striking pieces and the xylophone. It has the advantages of being simple, easy to replace, and easy to maintain. However, as in continuous casting equipment, it is possible to use sylophones with the same specifications for the rolls arranged above and below. Can not. When the same iron harp is used, the iron roll 3 shown in FIG. 1 is arranged on the upper roll due to the structure of the iron jig mounting jig (not shown), and the striker strikes the iron harp. This is because it will not be possible. Therefore, it was necessary to change the specifications of the Tekki for the rolls arranged above and below.

In the device shown in FIG. 1, the hitting piece 1 is swung down from the position shown by the alternate long and short dash line and hits the xylophone 3 to vibrate and make a sound, but the hitting piece hits the xylophone. After that, even after bouncing, he immediately came into contact with the ikoto and pressed it, and as a result, the vibration of the otoko was attenuated and the sound tended to be quieter. An object of the present invention is to provide a device that can solve the above problems.

[0007]

SUMMARY OF THE INVENTION Therefore, according to the present invention, an iron harp which produces sounds of different frequencies for each roll of a plurality of rolls, and a hitting means which strikes the iron quart to produce a sound each time the roll rotates, In a roll detection device having a microphone that collects the sound generated from each iron quart and a detection means that analyzes the frequency of the output of the microphone to detect the rotation state of each roll, the hitting means is a cantilever beam. Shaped wire springs, preferably leaf springs, a hitch attached to the springs, which hits the iron quart by the vibration of the springs, and a projecting piece from the roll, which engages with the spring by the rotation of the roll. It is composed of a protrusion such as a pin for flipping up the spring.

[0008]

Each time the roll rotates, the protrusion engages with the wire spring or the leaf spring to repel the spring, and when the roll is disengaged, the spring vibrates. As a result, the striker attached to the spring strikes the xylophone and produces a sound of a specific frequency. After hitting the ikoto, the hitoshi decays with the spring and separates from the ikoto.

[0009]

FIG. 3 and FIG. 4 show an embodiment of the present invention, in which a trowel 13 is attached to an upper portion of a receiving seat 12 arranged near the end of the roll 11 and fixedly supported in the central portion. At the same time, a leaf spring 14 is attached at one end in a cantilever shape extending on the iron quart. The leaf spring 14 has a striker 15 that hits the xylophone 13 and a protrusion 14a that slightly projects toward the roll end, and a pin 16 that projects laterally from the roll end engages with this protrusion 14a. It's getting better.

According to this apparatus, each time the roll 11 makes one revolution in the counterclockwise direction in FIG. 3, the pin 16 abuts against the projecting portion 14a of the leaf spring 14 from the lower side, and as shown by the one-dot chain line in FIG. Bounce the spring 14. Then, when the leaf spring 1 is detached from the protrusion 14a of the leaf spring due to the rotation, the leaf spring 1 is repelled.
4 retreats, the hitting 15 strikes the Tekki 13 and produces a sound of its own frequency.

[0011]

As described above, according to the present invention, the hitting element repels the wire spring or the leaf spring by the rotation of the roll and hits the lyre to generate a sound by its action. Because it is not like dropping and hitting the xylophone due to the action, it is possible to reliably hit the xylophone and generate a sound each time the roll rotates no matter what position it is attached to. The child does not press down the ikoto because it hits it and then bounces up, so that the ikoto and sound are not attenuated.

[Brief description of the drawings]

FIG. 1 is a front view of a detection device.

FIG. 2 is a block diagram showing an electrical configuration of a detection device.

FIG. 3 is a front view of a detection device according to the present invention.

FIG. 4 is a plan view of the detection device shown in FIG.

[Explanation of symbols]

11 ... Roll 12 ... Catch 13
..Tekkoto 14..Spring 15..Battle 16
··pin

Claims (1)

[Claims] 1. A gyro that generates a sound with a different frequency for each roll of a plurality of rolls, a striking means that strikes the xylophone to produce a sound each time the roll rotates, and a syllable that is produced from each xylophone. In a roll detection device having a microphone that collects sound and a detection unit that analyzes the frequency of the output of the microphone to detect the rotation state of each roll, the striking unit is a line supported in a cantilever shape. A spring or a leaf spring, a hitch which is attached to the spring and hits the sylophone by the vibration of the spring, and a projection which is provided so as to project from the roll and which is rotated by the roll to engage with the spring and repel the spring. A roll rotation detection device characterized by being configured.