Device capable of quickly detecting fixed pretension torque of anchor rod during installation

Abstract

The invention provides a device capable of quickly detecting fixed pretension torque of an anchor rod during installation. The device mainly comprises a connecting member, a torque control unit, and atorque output mechanism. The torque control unit adopts the structure of an upper concave chuck and a lower convex chuck and comprises a guiding shaft, the lower convex chuck, the upper concave chuck, a precision disc spring, a pressing plate, a retaining washer, torque regulation nuts and a shell, wherein the guiding shaft is located in the middle of the torque control unit, the lower convex chuck, the upper concave chuck, the precision disc spring, the pressing plate and the retaining washer fit and sleeve the guiding shaft from bottom to top in sequence, the lower convex chuck is located at the lower portion of the torque control unit and is embedded in the connecting member, the upper concave chuck is connected with the lower convex chuck in a matched manner, and is fixedly connectedwith the shell, the two ends of the precision disc spring abut against the upper concave chuck and the pressing plate respectively, and the outer side of the pressing plate is provided with the retaining washer. By means of the device, the problem that in the process of installing the anchor rod, the pretension torque of the anchor rod cannot be precisely and quickly detected can be solved, the structure is simple, and operation is convenient.

Description

Technical field [0001] The invention belongs to the technical field of bolt support, and particularly relates to a device for rapid installation and detection of anchor bolt pre-tightening torque. Background technique [0002] Coal mining is a special and highly dangerous industry. With the increase of mining intensity and mining depth, mines have suffered more and more disasters, especially the difficulty of roadway support management. As far as the current coal mine roadway bolt support is concerned, there are problems such as complex support construction procedures, cumbersome operations, excessive support, and machine injuries. Some units even ignore monitoring methods, especially in the process of prestressed bolt support. The rapid and accurate application of the pre-tightening torque and the delay in the detection problem have not been solved, which has caused the complex construction process of the on-site support, the detection is not timely, and the efficiency is low. ...

AI Technical Summary

Problems solved by technology

The device can solve the problem that the pre-tightening torque of the anchor cannot be accurately and quickly applied and detected during the installation of the anchor

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