Hydraulic automatic rod feeding device for leakage measurement of two blocked ends of drilled hole

Abstract

The invention discloses a hydraulic automatic rod feeding device for leakage measurement of the two blocked ends of a drilled hole and relates to the technical field of monitoring of the height of fissure and collapse rock of a overlying strata of a mining field. The hydraulic automatic rod feeding device for leakage measurement of the two blocked ends of the drilled hole comprises a base and an upper machine body, wherein an elevation angle adjustment device is arranged between the base and the upper machine body, a hydraulic control device, a rod feeding device body and a rod clamping device are arranged on the upper machine body, the rod feeding device body is connected with the hydraulic control device, the rod clamping device is fixed to the tail end of the upper machine body, and a drill rod is placed on the rod feeding device and the rod clamping device during work. According to the hydraulic automatic rod feeding device for leakage measurement of the two blocked ends of the drilled hole, the hydraulic control device and the rod clamping device are designed, automatic rod feeding is achieved, traditional manual rod pushing and ejecting are avoided, the labor intensity of workers is relieved, it is guaranteed that the drill rod does not slide during rod feeding through a pressing rod hydraulic head and a base plate, automatic rod clamping can be achieved through the rod clamping device after a rod feeding cycle is completed, the drill rod is prevented from sliding, it is guaranteed that the measurement process is conducted safely, measurement efficiency is improved, hydraulic control of the whole process is achieved, and stability and reliability are guaranteed.

Description

technical field [0001] The invention relates to the technical field of monitoring the height of two overlying rocks in a stope, in particular to a hydraulic automatic rod-feeding device for double-end plugging and leakage measurement of boreholes. Background technique [0002] When the whole caving method is used to control the roof, after the coal seam is mined out, the overburden strata in the goaf will be deformed and destroyed, forming an obvious "three zones" form, which are the caving zone, water-conducting crack zone and zone from bottom to top. Bend sinker straps. Among them, the height of the caving zone and the water-conducting fracture zone (referred to as the two zones) is one of the key bases for the safety protection of coal pillars in the outcrop area and the design of safe mining under the water body. [0003] The height observation of the water-conducting fracture zone is a subsection water injection observation method in downhole upholes that can reduce en...

AI Technical Summary

Problems solved by technology

However, due to the influence of traditional drilling rig feeding methods and some factors such as large drilling angles, drill pipe slippage, low rod feeding efficiency, and high labor intensity occur during the rod feeding process.

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