Automatic rod replacing device of hydraulic drill rig for coal mine

Abstract

The invention relates to an automatic rod replacing device of a hydraulic drill rig for a coal mine. The automatic rod replacing device comprises a support frame base, wherein a concave groove matched with a convex groove formed in a guide rail of the hydraulic drill rig is formed in the support frame base; support frames are arranged on the support frame base; a drill rod frame used for placing a drill rod is arranged on each support frame; a large swinging angle cylinder and a small swinging angle cylinder are also arranged on each support frame; each large swinging angle cylinder and the corresponding swinging angle cylinder are connected through a rocker arm; different moving paths can be planned through setting the swinging angles of the large swinging angle cylinder and the small swinging angle cylinder; and the flexible carrying of the drill rod is realized. The automatic rod replacing device has the beneficial effects that the automatic rod replacing device can automatically carry the drill rod; the work intensity of workers is lightened; the work efficiency is improved; the occurrence of risks can be avoided; two-joint mechanical arms are used; the universality is high; the carrying of the drill rod is flexible and accurate; and the automatic rod replacing device can be applicable to different drill rig models.

Description

technical field [0001] The invention relates to a hydraulic drilling car, in particular to an automatic rod changing device for a coal mine hydraulic drilling car. Background technique [0002] Most of the existing hydraulic drilling rigs do not have the function of automatically changing the drill pipe, and the manual replacement of the drill pipe is a very time-consuming, labor-intensive and dangerous work. It usually takes 5-10 minutes to manually change a drill rod, and it is completed by 2-3 people. The auxiliary time of drilling increases and the drilling efficiency decreases. In addition, workers need to climb to the drill truck when changing rods. On site, under the influence of dark, noisy, humid and other factors, there are certain safety hazards in the climbing and joining of drill pipes. In addition, the working position of drill pipes is often the frontmost coal seam working face, and the upper coal seam may fall off at any time. This also poses a huge hidden d...

AI Technical Summary

Problems solved by technology

[0002] Most of the existing hydraulic drilling rigs do not have the function of automatically changing the drill pipe, and the manual replacement of the drill pipe is a very time-consuming, labor-intensive and dangerous work

It usually takes 5-10 minutes to manually change a drill rod, and it is completed by 2-3 people. The auxiliary time of drilling increases and the drilling efficiency decreases. In addition, workers need to climb to the drill truck when changing rods. On site, under the influence of dark, noisy, humid and other factors, there are certain safety hazards in the climbing and joining of drill pipes. In addition, the working position of drill pipes is often the frontmost coal seam working face, and the upper coal seam may fall off at any time. The danger of coming down, which also poses a huge hidden danger to the safety of workers

[0003] The automatic rod changing function of some drilling rigs with automatic rod changing function is not flexible enough and accurate

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