Automatic lifting and overturning mechanism for refractory material thermal shock test device

Abstract

The invention relates to an automatic lifting and overturning mechanism for a refractory material thermal shock test device. The automatic lifting and overturning mechanism comprises an automatic lifting system and an automatic overturning system, wherein a lifter adopted by the automatic lifting system is of a piston-movable pulley chain wheel-chain type combined structure; the up-down movement speed and the stroke of a test sample are two times of those of a common lifting mechanism, and the heated test sample can be rapidly immersed into a water cooling tank, so that the quenching requirements of test standards are met; the automatic overturning system adopts a combined mechanism composed of an eccentric rotary shaft on the back surface of a test sample clamping device, overturning gears at two sides of the test sample clamping device, an overturning rack on a rack and the like, so that the test sample can be automatically overturned in an up-down movement process, the test sample can be put into a furnace / discharged from the furnace in a manner that the end face of the test sample is upward and the test sample can be put into water / discharged from the furnace in a manner thatthe end face of the test sample is downward, and an extra test sample overturning driving mechanism is not needed; and the automatic lifting and overturning mechanism provided by the invention can realize full automation through a positioning control system and manual intervention / operation is not needed.

Description

technical field [0001] The invention relates to an experimental equipment in the technical field of refractory materials, in particular to an automatic lifting and turning mechanism for a thermal shock test device for refractory materials. Background technique [0002] The thermal shock resistance test of refractory materials is a test that simulates the damage of refractory materials due to temperature changes in high-temperature environments, and is an important indicator for evaluating the performance of refractory materials. At present, the test standard for thermal shock stability of refractory materials is the test method for thermal shock resistance of refractory materials GB / T30873-2014. The principle of the test is to determine the thermal shock resistance of the refractory material according to the degree of damage after a sample of a certain shape and size is subjected to a sudden change in temperature under the specified test temperature and cooling medium. The ...

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Problems solved by technology

[0003] At present, conventional thermal shock resistance test equipment for refractory materials has certain technical defects. For example, the manual operation of entering, exiting, entering and exiting the furnace through the specimen holder is generally used, which is laborious, time-consuming and dangerous; , The elevator realizes the rising and falling of the sample, which is slow and takes a long time; and the turning mechanism of the sample also has the disadvantages of slow speed and unstable transmission

Such a transmission mechanism causes the sample to not be rapidly cooled in water after being heated rapidly, and the heat loss of the sample is large, which seriously affects the test result and does not meet the requirements of the test standard.

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