Large-displacement drawing machine for constant-resistance anchor tie and usage method thereof

Abstract

The invention provides a large-displacement drawing machine for a constant-resistance anchor tie and a usage method thereof. The large-displacement drawing machine comprises a supporting column, a hoop, a rotating seat, a hollow hydraulic cylinder and a hydraulic pump, wherein the supporting column can be supported in a tunnel; the hoop is sleeved on the supporting column; the rotating seat is assembled on the hoop; the hollow hydraulic cylinder can draw the anchor tie; the hydraulic pump drives the hollow hydraulic cylinder; the length of the supporting column can be adjusted; two ends of the supporting column can be leaned against on the bottom surface and the top surface of the tunnel, which are opposite; the hoop can be detachably mounted at different positions on the supporting column; the rotating seat can be fixedly arranged on the hoop at different rotation angles; the hollow hydraulic cylinder is connected with the hydraulic pump; and the hollow hydraulic cylinder is assembled on the rotating seat. The large-displacement drawing machine for the constant-resistance anchor tie has the advantages of large displacement range, high bearing capacity, simple structure, convenience in movement, flexibility in operation, and safety and reliability in transportation.

Description

technical field [0001] The invention relates to mine support engineering equipment, in particular to a constant-resistance bolt large-displacement drawing machine for roadway support bolt detection and a use method thereof. Background technique [0002] In coal mine roadway support, bolt is the most widely used and most used support material. With the continuous increase of coal mine mining depth, the roadway surrounding rock often exhibits the characteristics of nonlinear large deformation, which is specifically manifested as large deformation of soft rock, large deformation of impact, large deformation of rockburst, large deformation of gas outburst, etc. However, the existing support materials generally have the problem of low elongation, and cannot adapt to the characteristics of large deformation of surrounding rock in deep roadways. When the surrounding rock undergoes large deformation, due to the large energy in the initial stage of deformation, the deformation energ...

AI Technical Summary

Problems solved by technology

[0004] Purpose of the present invention: In order to solve the problem that the existing anchor rod puller has small displacement range, low pulling load, heavy weight and complicated operation, which cannot meet the detection needs of constant resistance and large deformation bolt in underground roadway support engineering, invented A large displacement drawing machine for constant resistance bolts with large displacement range, high bearing capacity, simple structure, convenient movement, flexible operation, safe and reliable transportation

Images