Coal cake density measuring device

By coordinating the drive and discharge mechanisms, the coal cake density measurement is made accurate and efficient, solving the problems of cumbersome operation, large errors and low efficiency in the existing technology, and improving the automation and accuracy of the measurement.

CN224552997UActive Publication Date: 2026-07-24BAO FENG XIAN FU LI XI MEI JIAO HUA CHANG
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Patent Information

Application Number
CN202521193063.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-11
Publication Date
2026-07-24
Estimated Expiration
2035-06-11

AI Technical Summary

Technical Problem

Existing methods for measuring coal cake density are cumbersome to operate, easily damage the structure, have large measurement errors and low efficiency, and are easily affected by manual operation, making it difficult to achieve accurate and efficient density measurement.

Method used

A drive mechanism is used to achieve precise vertical feeding of the drill bit, and a discharge mechanism is used to automatically empty the coal sample from the drill bit. The sample is then weighed directly by an electronic scale to ensure controllable sampling depth and no sample residue, thereby improving measurement accuracy and efficiency.

Benefits of technology

It improves the accuracy and efficiency of coal cake density measurement, reduces human error, ensures consistent sampling depth and volume each time, and reduces the impact of equipment shaking and sample residue.

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Abstract

The utility model discloses a coal cake density measuring device which comprises a bottom plate, an electronic scale is embedded in the end face of the bottom plate, a frame is fixedly connected to the end face of the bottom plate, a sliding block is movably connected in the frame, fixing plates are fixedly connected to the outer walls of the two sides of the sliding block, and the two fixing plates are jointly connected with a table type water drilling machine. A drilled coal cake sample is directly weighed through the electronic scale embedded in the bottom plate, and errors caused by sample transfer in a traditional method are avoided; through cooperation with scale marks and a linkage pointer on the outer wall of the drill bit, an operator can observe the sampling amount in real time, it is ensured that the depth and the volume of sampling each time are consistent, the density measurement accuracy is improved, a lifting mechanism composed of a threaded rod driven by a servo motor and a limiting rod enables the drill bit to be stably and vertically fed, manual operation shaking is reduced, and the working efficiency is improved. Meanwhile, an automatic discharging mechanism composed of a spring and a top plate rapidly empties the drill bit, residues are prevented from interfering with follow-up measurement, and overall operation is more efficient and convenient.
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