Coal mine underground roadway tunneling measuring device

Abstract

The invention discloses a coal mine underground roadway tunneling measuring device, and belongs to the field of coal mine roadway measuring equipment. A coal mine underground roadway tunneling measuring device comprises a bottom plate, two fixing seats are installed on the top face of the bottom plate, a reel is arranged between the two fixing seats, a winding rope is wound around the reel, a fixed anchor rod is connected to the free end of the winding rope in a bolted mode, a counting mechanism is arranged on one side of the reel and comprises a fixing block, and a counter is installed on the fixing block. And two guide wheels in frictional contact with the winding rope are arranged in the fixed block. The heading machine advances to drive the reel to unwind the winding rope, the spring B drives the guide wheel in the movable seat to be matched with the other guide wheel to be in close contact with the winding rope, so that the winding rope drives the guide wheel to rotate when being stretched, the guide wheel drives the counter to count through the connecting shaft, and the unwinding length of the winding rope can be recorded; therefore, the linear distance from the starting point to the end point of the heading machine can be conveniently obtained, and the measurement precision is high.

Description

technical field [0001] The invention relates to the field of coal mine roadway measurement equipment, in particular to a coal mine underground roadway driving measurement device. Background technique [0002] In mine development and mining engineering design, there are clear regulations and requirements for geometric elements such as the starting point, end point, direction, slope, and section specification of the roadway. Underground measurement of coal mines is an important part of realizing safe production in the process of mine production and construction. Environmental protection is an important and rigorous technical work, and it is an important means for coal mines to improve production technology management and realize coal mine safety production. In the process of the horizontal advance of the roadway, it is necessary to measure the displacement change of the rock formation on the roof of the roadway. The patent document with the prior art publication number CN11095...

AI Technical Summary

Problems solved by technology

In the process of advancing horizontally in the roadway, it is necessary to measure the displacement change of the roadway roof rock layer. The patent document of the prior art publication No. CN110953959A provides a coal mine underground roadway driving measurement device. The device keeps the measuring roller always When the measuring roller rotates, it drives the driving roller, and the driving roller drives the driven roller and the driving roller to rotate through the transmission belt. When the driven roller rotates, it drives the pin shaft to rotate, and the pin shaft rotates to drive the pointer to rotate. The number of turns of the pointer combined with the scale bar of the disc body can be used to calculate the length of the roadway for excavation. It does not need to fix the wire rope to calculate, which is simple and convenient, and does not affect the excavation efficiency. Among other existing patented technologies, CN214470705U discloses a steel wire rope The length counting device includes a tension spring, a rope pressing device, a metering device, a rope guide device, a counter and a bottom plate, and the rope pressing device and the metering device are fixed by a tension spring, and the mete

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