A horizontal single-axis directional rotary-impact combined excavation type engineering slotting machine

Abstract

The invention relates to a horizontal single-axis directional rotary-impact combined excavation type engineering grooving machine, including a traveling device with a hoisting device and a power system and a monitoring device; an impact milling device is suspended at the traction end of the hoisting device, and the impact milling device includes a vertical Directional guide frame, rectifying device, milling shaft, impact device; the axis of the milling shaft is located in the plane of the guide frame, and is arranged horizontally or obliquely, driven by the horizontal hydraulic motor or the vertical hydraulic motor through the reversing device. , the milling shaft has a directional rotation milling state of segmental balance and reverse rotation, and the impact device is placed in the guide frame; the connecting beam above the milling shaft is hung under the bottom beam of the guide frame through a suspension sliding device, and the drill rod of the impact device is attached to the bottom beam of the guide frame. The impact on the connecting beam and the milling axis and the positioning drill bit is driven by hydraulic pressure. The invention can conditionally select the direction and angle of the cutting edge, and can quickly change the excavation mode according to the stratum lithology, so as to obtain higher excavation efficiency and reliability.

Description

technical field [0001] The invention relates to a horizontal single-axis directional rotary-impact combined excavation type engineering slotting machine, which belongs to the technical field of slotting equipment. Background technique [0002] According to the inventor's understanding, in the fields of water conservancy, transportation, construction and other engineering fields, it is necessary to build various underground continuous walls under different geological conditions. In the actual construction process, it is a very difficult and unsolved problem to open deep grooves to build various underground continuous walls in the strata containing gravel, boulders, boulders and hard rock layers. The slotting machine that has been developed by the inventor can complete the slotting operation with high efficiency and low cost, and the effect is good. [0003] The inventor applied for a Chinese invention patent on April 13, 2015 (application number 201510173686.9, authorization...

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Problems solved by technology

However, the inventor has found several problems in the practical research: 1. The above-mentioned slotting machine adopts the milling shaft periodical reversing process to balance the milling reaction force, although it can solve the problem that the rock and soil reaction force drives the whole The frame deviates from the vertical direction, but due to the periodic reversing of the milling axis, it is difficult to take into account the different rotation directions of the cutter teeth on the rotating milling axis. It is difficult to improve the excavation efficiency and increase the wear of the cutter teeth by adopting a reasonable angle and shape. , cutter tooth wear accounts for a large proportion of project cost

On the one hand, this punching method has no pre-applied drilling pressure, and the rock-breaking effect is poor. On the other hand, if the punching intensity is too high, it is easy to damage the excavation parts. The frequency is not high, so the excavation efficiency is greatly limited

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