Conicity measuring instrument

Abstract

The invention relates to the field of measuring instruments, in particular to a conicity measuring instrument which is used for directly measuring a workpiece with conicity. The conicity measuring instrument comprises a fixed support, a measuring baffle and a limiting mechanism, wherein one side of the fixed support is used for measuring a contact surface, the other side of the fixed support is provided with a measuring baffle plate, the measuring baffle comprises a swing pull rod, a measuring support, a measuring disc and an inclination angle sensor, the inclination angle sensor is fixedly arranged on the measuring disc, the measuring disc is arranged on the measuring support, and the measuring support is suspended on the fixed support through the swing pull rod; the limiting mechanism comprises a limiting pin and a limiting release device, and the limiting pin blocks the swing side of the measuring support; when the limiting pin is in a limiting state, the measuring support is parallel to the measuring contact surface; when the limiting release device releases the limiting effect of the limiting pin, the measuring support is in a vertical state under the action of gravity. The conicity measuring instrument has the advantages of being simple in structure, small in size, high in measuring precision and convenient to use.

Description

technical field [0001] The invention relates to the field of measuring instruments, in particular to a taper measuring instrument, which can directly measure the taper workpiece, especially the taper of the slab continuous casting machine crystallizer. Background technique [0002] To cool molten steel into steel, the crystallizer of the slab continuous casting machine is very important. The crystallizer is a trough-shaped container with a jacket or coiled pipe on the wall to provide cooling liquid. The heat transfer of the mold is to control the slab. The key to output and quality, the main influencing factor is the air gap formed between the billet shell and the inner wall of the crystallizer, and the heat resistance of the air gap is more than 80% of the entire heat resistance. The cross-section of the mold is generally designed as an inverted cone shape. The size of the taper is more and more valued by producers and developers. If it is too large, it will cause the raw m...

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Problems solved by technology

[0002] To cool molten steel into steel, the crystallizer of the slab continuous casting machine is very important. The crystallizer is a trough-shaped container with a jacket or coiled pipe on the wall to provide cooling liquid. The heat transfer of the mold is to control the slab. The key to output and quality, the main influencing factor is the air gap formed between the billet shell and the inner wall of the crystallizer, and the heat resistance of the air gap is more than 80% of the entire heat resistance. The cross-section of the mold is generally designed as an inverted cone shape. The size of the taper is more and more valued by producers and developers. If it is too large, it will cause the raw materials to squeeze the crystallizer, increase friction, and aggravate the damage of the crystallizer. If it is too small, it will increase The large air gap reduces the heat flow, which is not conducive to the rapid prototyping of the billet shell, so a precision taper measuring instrument is often required to measure the taper of the crystallizer

[0003] At present, the taper measuring instrument is relatively heavy, which is not conducive to handling and measuring work. Another part of the measuring instrument needs to be equipped with a calibration device, which must be calibrated in another place before each measurement. Although a certain accuracy is guaranteed by the calibration device, it increases the cost. Reduce the efficiency of measurement

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