Modularized drill boom and drill jumbo

Abstract

The invention relates to the technical field of engineering machinery, and discloses a modular drill boom and a drill jumber.The modular drill boom comprises a mounting base, a basic boom, a supporting joint and a telescopic boom which are sequentially connected; a telescopic oil cylinder is arranged in the supporting joint, one end of the telescopic oil cylinder is connected with the basic arm, and the other end of the telescopic oil cylinder is connected with the telescopic arm. A plurality of axial grooves which are evenly distributed are further formed in the supporting section, guide keys are arranged on the telescopic arm, and the number and the structural size of the guide keys are matched with those of the grooves. The method has the beneficial effects that the overall operation range of the drill jumbo can be switched, the flexible production capacity of a factory is improved, and the individual requirements of different projects are met.

Description

technical field [0001] The invention relates to the technical field of construction machinery, in particular to a modular drill arm and a rock drilling rig. Background technique [0002] The drilling and blasting method is the main method for the tunneling and underground mine excavation construction, and the rock drilling rig is the most important equipment for mechanized construction. According to the size of the excavation section, the rock drilling rig can be equipped with different numbers of drill arms and thrusters, which can be divided into single-arm rigs, double-arm rigs, three-arm rigs and so on. [0003] The general main body of the existing drill boom is composed of a basic boom and a telescopic boom. Once the dimensions of the basic boom and the telescopic boom and their matching lengths are determined, the maximum operating range of the rock drilling rig becomes a certain value. In actual projects, the cross-sectional dimensions required for highway tunnels, ...

AI Technical Summary

Problems solved by technology

If the sliding gap is small, the support rigidity of the drill arm can be increased, making the drill arm more stable and positioning faster and more accurate, but it will also lead to a significant increase in processing accuracy requirements and assembly difficulty

For the drill arm with a large operating range, the force arm of the sliding bearing increases due to the increase of the force arm of the operating reaction force, especially during the rock drilling process, a large amount of debris, muddy water and other pollutants are generated, which are easy to flow down the actuator , penetrates into the sliding mating surface, which accelerates the wear of the bearing and has a greater negative impact on the maintenance frequency of the drill arm

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