Auxiliary measurement system of CMS detector

Abstract

The invention proposes a measurement auxiliary system of a CMS detector, the measurement auxiliary system includes a crossbar (1), a front bracket and a rear upright (3), and the front bracket includes a trapezoid surrounded by four pillars (11) body or cone-shaped tripod, and the U-shaped groove (10) fixed on the top of the tripod; the U-shaped groove bottom plate is provided with an arc-shaped rod or arc-shaped groove (24) that is buckled on the U-shaped groove bottom plate, And the axis of the arc rod or the arc groove (24) is perpendicular to the axis of the U-shaped groove (10). The CMS detector measurement auxiliary system of the present invention utilizes unique structural designs such as front brackets and fine-tuning lifters to reduce potential safety hazards caused by falling gravel on the roof, improve the balance and safety performance of the bracket system, and prevent the bracket system from being unstable and toppling. The installation is fast and convenient; in addition, the measurement auxiliary system further improves the measurement baseline system, which expands the applicability of the CMS detector in various measurement environments.

Description

technical field [0001] The invention relates to an auxiliary system of measuring instruments in the field of mining, in particular to a measurement auxiliary system of a CMS detector. Background technique [0002] Open-stop mining method, segmented filling mining method, and stage filling mining method are widely used mining methods. When using this type of mining method, mines must accurately grasp the three-dimensional shape of the mined goaf to ensure the normal recovery of the stope And carry out the next step of filling design, adjacent stope mining operations, and regional stability analysis, etc.; some mines have a large number of karst cave areas, and it is particularly important to understand their internal shape and take corresponding treatment measures to achieve safe and efficient mining in mines. The stability of surrounding rock in the area is poor, and personnel are strictly prohibited from entering the empty area. [0003] Cavity Monitoring System (CMS) is w...

AI Technical Summary

Problems solved by technology

[0006] (1) In the measurement baseline system, the target signboard is fixed on the trapezoidal frame (21) that is sleeved on the crossbar by two rivets (25), and cannot Free rotation, the total station can only be erected directly behind the sign

The narrow activity space in the mine restricts the erection position of the total station, and sometimes even some areas cannot be measured; at the same time, due to the large space required for measurement, it is easy to affect the passing of surrounding vehicles and affect normal production. See the attached Figure 6

[0007] (2) The height of each front and rear pole is only 4.5m, and its built-in caliper lifter is a rigid lifting system with a fixed scale distance and cannot be adjusted slightly. When the section of the roadway exceeds 4.5m (for example, increasing from 4.0m to 4.8m), sometimes the vertical pole cannot be in close contact with the roadway roof (7), and additional gaskets are needed to supplement the height to complete the measurement, but the actual workload is large and the contact with the roof Unsatisfactory effect

[0008] (3) The fixed tray of the front pole (5) has poor anti-skid measures, causing the horizontal pole to swing from side to side and affecting the stability of the pole, which brings certain safety to the CMS detector risk

[0009] (4) The cross bar is connected by multiple nodes through buckles, which takes up a lot of space during transportation. During installation, it needs to be assembled to the instrument through buckles one by one for long-term use Later, due to the deformation of the connecting mechanism, it is easy to cause difficulty in disassembly

[0010] (5) The installation mechanism of the CMS detector is complicated, the installation process takes a long time and requires a large number of personnel (at least 4 people)

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