A crucible sampling device

Abstract

The invention discloses a crucible sampling device, comprising a horizontal movement mechanism and a vertical movement mechanism, the top of the sampling rod (9) on the vertical movement mechanism is provided with a positioning device (21) for clamping the crucible (3) . In the present invention, a positioning device for clamping the crucible is arranged on the top of the sampling rod to position the crucible, the structure is extremely simple, and the displacement and drop of the crucible caused by factors such as shaking during movement are effectively solved. With similar positioning, the crucible is not affected by factors such as manufacturing tolerances. The crucible is not affected by other external forces, which prevents the damage and other influences caused by external forces on the crucible. It avoids the disadvantages of complicated mechanism and bulky size, reduces the difficulty and cost of design, further reduces the source of failure, reduces the failure rate, and improves the reliability and stability of the overall operation.

Description

technical field [0001] The invention relates to the technical field of combustible substance composition analysis instruments, in particular to a crucible sampling device. Background technique [0002] In the traditional technology, the analytical instruments used for combustible substances have a low degree of automation and require a lot of manual processing, which makes the analytical instruments labor-intensive and low-efficiency in use, and there are human errors in the test, which cannot meet the requirements of on-line analysis of the instrument. In order to avoid human error, there are many structures and methods of automated instrument sending and sampling to replace the pure manual operation of traditional instruments. To realize the automation of coal quality analysis instruments, one of the most critical technologies is how to realize the automatic delivery process of the crucible from the setting out pan, weighing pan and analysis furnace. [0003] The existing...

AI Technical Summary

Problems solved by technology

However, there are defects in the lifting and sampling of the manipulator: due to some specific requirements, a waist-shaped crucible with a cover must be used. The center of gravity of the crucible is high, the bottom surface is uneven, and the stability of the crucible movement is very high.

[0005] However, the above-mentioned tightening device has a complex mechanism and a large volume, and the spring will fail due to temperature, and is easy to get stuck, so the practical application is not meaningful, and it cannot be adapted to the environment where the temperature is slightly higher or the crucible needs to be sealed and protected.

The crucible is made of brittle materials such as ceramics and is a hollow thin-walled part. The two ends of the crucible are easily crushed or cracked.

If the bottom surface of the lifted crucible is uneven, if the stress points at the upper and lower ends are not in a straight line, it is easy to shift or skew the position, resulting in inaccurate positioning and failure

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