SU1116313A1 - Device for measuring molten metal displacement - Google Patents

Abstract

DEVICE FOR MEASURING THE MOVEMENT hot metal, comprising a base with a propelling air cylinder and the measuring rod with a tip, coupled to the piston of the pneumatic cylinder and rotatable relative to the base and tip movement detector, characterized in that, in order to increase the accuracy of measurement and expansion functionality , the communication unit of the rod with the piston is made in the form of a gimbal suspension with a sleeve that rotates the rod around its own axis, the device is equipped with sensors com rotation rod around its own axis, and the tip is formed as a fork.

Description

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The invention relates to a measurement technique and can be used to measure the movements of a hot metal.

A device for measuring the movement of a hot metal, comprising a base with a throwing PK-cylinder, and a measuring rod with a tip, rigidly connected to the piston of the pneumatic cylinder and rotated relative to the base together with the pneumatic cylinder, and sensors for moving the tip are known. Sensors for moving the tip are made in the form of flat springs with strain gages glued on them located in two mutually perpendicular planes. One end of the spring is hinged on the base, and the other is also hinged on the pneumatic cylinder. Changing the position of the pneumatic cylinder causes bending of the spring: kin corresponding to the mutually perpendicular components. The amount of curvature is measured using strain gauges.

A disadvantage of the known device is the low measurement accuracy,. due to the large moment of inertia and backlash of the moving part of the device. In addition, the known device does not allow controlling the rotation of the measurement object around the axis of the measuring rod.

The purpose of the invention is to increase the measurement accuracy and spread the functionality.

The goal is achieved in that in a device for measuring the movements of a hot metal containing a base with a throwing pneumatic cylinder and a measuring rod with a tip connected to the piston of the pneumatic cylinder and rotated relative to the base, and the sensor for moving the tip, the communication node of the rod with the piston is made In the form of a gimbal with a bushing that rotates the rod around its own axis, the device is equipped with a rod rotation sensor around its own axis, and the tip is made in the form of a fork.

FIG. 1 shows the device in the initial position, general view; in fig. 2 - device with released

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stock type assembly; in fig. 3 - section A-A in FIG. 2.

The device comprises a base 1, a throwing pneumatic cylinder 2 with a piston 3, connected to the base 1 by means of guides 4, mounted on guides 4 and 4 carriage 5, measuring rod 6 with tip 7, cardan Suspension consisting of brackets 8 and 9 and crossings U , with the sleeve 11, the sensors 12, 13 and 14 of the movement of the tip 7 and the springs 15, supporting the measuring rod 6 in an average initial position, for example in a horizontal position.

The axes of the cross are oriented along the axis of measurement, for example, vertical and horizontal. Tip

7 made of heat-resistant material in the form of a fork.

The device is used to measure the movement of a hot ingot in the event of short-term large acceleration from the action of cutting and spreading forces accompanying the process of cutting a continuous ingot or rolled by pulsed cutting machines on dimensional workpieces. The device works as follows.

At the time required for measurement (for example, the cutting moment), compressed air is supplied to the pneumatic cylinder from a control unit (not shown) and tip 3 is inserted into the ingot (not shown).

At the time of the cut, the ingot under the action of cutting forces is displaced in the cut zone with great acceleration in both the vertical and horizontal directions, a. turning is also possible

ingot. The ingot displacement in an arbitrary direction and its rotation are accompanied by displacement and rotation of the tip rigidly attached to it.

nick 7. The movement of the tip causes rotation of the corresponding axis of the cross 10, which is fixed

sensors 12 and 13 separately in the vertical and horizontal directions. The rotation of the tip 7 around its own axis is detected by the sensor 14.

After cutting, i.e. after the end of the acceleration, the device is automatically disconnected from the ingot and the whole system is ready for the next measurement.

The implementation of the communication unit of the measuring rod with a piston in the form of a gimbal suspension with a sleeve, which ensures the rotation of the rod regardless of the throwing pneumatic cylinder, allows

improve the measurement accuracy and fix the rotation of the controlled ingot relative to the axis of the measuring rod using an additional rotation sensor.

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Claims (1)

DEVICE FOR MEASURING THE MOVEMENTS OF A HOT METAL, comprising a base with a throwing pneumatic cylinder and a measuring rod with a tip connected to the piston of the pneumatic cylinder and rotatable relative to the base, and sensors for moving the tip, characterized in that, in order to improve accuracy. measuring and expanding functional capabilities, the rod-piston communication unit is made in the form of a gimbal with a sleeve providing rotation of the rod around its own axis, the device is equipped with a rod rotation sensor around its own axis, and the tip is made in the form of a plug. § (Л с> 1 π 6313 2