Rod piece bracket and operation arm of anchor rod trolley with rod piece bracket

Abstract

The invention discloses a rod piece bracket which comprises a supporting seat, a supporting arm, a clamping assembly and a driving device. The supporting arm is rotationally connected with the supporting seat, can swing in a plane perpendicular to the rod piece, and is provided with a first position and a second position; the clamping assembly comprises a first clamping arm and a second clamping arm which are rotationally connected with the supporting arm, and the two clamping arms have the opening state for releasing the rod piece and the closing state for limiting movement of the rod piece. The driving device is used for driving the first clamping arm to rotate so that the two clamping arms can be switched between the opening state and the closing state. The driving device completes state switching of the two clamping arms and position changing of the supporting arm, compared with a traditional drill rod fixing mechanism, the periphery of the drill rod is supported, and interference of bending stress is effectively reduced. And when the drilling assembly slides close to the rod piece bracket, the supporting arm rotates and swings to the second device and retreats from the drilling movement path of the drilling assembly, the drilling operation of the drilling assembly is safer, and the drilling depth is deeper.

Description

technical field [0001] The present application relates to the technical field of tunnel construction, in particular to a rod bracket and an operating arm of an anchor trolley having the rod bracket. Background technique [0002] Rock drilling rigs or bolting rigs, in long-distance drilling, the ratio of the axial direction to the radial direction of the drill pipe is large, and it is easy to form a large bending disturbance under the action of gravity. If there is no response measure to avoid the disturbance When the drill pipe or anchor rod feeds a certain propulsive force, the force cannot be transmitted along the center direction of the rod, so that the bending degree increases continuously until it is bent or broken. Another reason is that when the bolt or drill pipe rotates at high speed, the influence of the centripetal force will gradually increase. If the disturbance cannot be effectively reduced, it will also cause bending or breaking during operation. Therefore, a...

AI Technical Summary

Problems solved by technology

However, the bracket only provides upward support to counteract gravity, and the drill pipe may be subjected to centripetal force in other directions during drilling operations, and the situation of detaching from the bracket may occur, resulting in a high risk of fracture, and the telescopic The bracket always occupies a certain space at the front end, and the depth of the bolt installation hole produced by the drilling operation is always smaller than the effective length of the drill pipe, so the efficiency is not high

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