Automatic drill-rod-replacing control system for rock-drilling drill carriage

Abstract

The invention discloses an automatic drill-rod-replacing control system for a rock-drilling drill carriage. The whole drill-rod-replacing process can be operated and finished by an operator in a cab, working efficiency of drill rod replacement is improved, and working strength of the operator is reduced. According to screw pitch of threads arranged on a central shaft of a rock drill and a drill rod and rotating speed of the central shaft of the rock drill, two pressure-regulating valve groups are adopted to respectively control propulsion and receding pressure of the central shaft of the rock drill, the propulsion or receding speed is matched with the rotating speed, and damage to the drill rod and the central shaft of the rock drill is avoided. A mechanical claw pressure control valve group is adopted to adjust intense pressure of a mechanical claw on the drill rod, the fact that the drill rod and the central shaft of the rock drill are coaxial during the drill rod connecting and dismantling process is guaranteed, the drill rod is aligned with an original drill rod, the control pressure can be adjusted by the pressure-regulating valve groups so as to adapt to weight of different drill rods, and accordingly the drill-rod-replacing process can be finished smoothly.

Description

Technical field [0001] The invention relates to the field of hydraulic control, in particular to an automatic drill replacement control system of a rock drilling rig. Background technique [0002] At present, high-speed drilling machinery has been widely used in military and various civilian fields in other developed countries. In the past two years, my country’s civilian applications have also become more and more extensive. In the fields of transportation, energy, mining, geological disaster management, and urban construction, It is used to excavate tunnels, excavate canals, mine mining, and construct underground caverns. [0003] Rock drilling rigs need to be continuously replaced during the working process to meet the drilling depth requirements. There are many types of domestic rock drilling rigs, but in this process, most of the drills are replaced manually or semi-automatically. This is both It affects work efficiency and also increases the labor intensity of operators. The...

AI Technical Summary

Problems solved by technology

[0003] During the working process, the rock drilling rig needs to continuously change the drill to meet the drilling depth requirements. There are many types of domestic rock drill rigs, but most of them use manual or semi-automatic drill replacement in this link, which is both Affects work efficiency, but also increases the labor intensity of operators

The patent with application number 200920121924.1 discloses a cylinder-type brazing exchange system for drilling rigs. The system uses a rotary cylinder to control the rotation of the manipulator between the drill bin and the rock drill. When unloading the drill, the clamping cylinder is used to clamp the drill rod so that the drill The rod is easily unloaded, but the patent does not disclose the control part of the drill exchange system, that is, it does not solve the problem of how the drill exchange system automatically completes the drill exchange process, and solves the docking between the rock drill and the drill rod, and the drill rod and the drill rod during the drill exchange process Problems and speed control in the process of drill rod connection

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