Vertical gear shifting device suitable for heading machine, heading machine and vertical gear shifting method of heading machine

Abstract

The invention discloses a vertical shaft heading machine capable of vertically shifting gears, which comprises a supporting seat arranged at the front end of a heading machine supporting arm and a fixing seat used for butting and fixing a duct piece, and the fixing seat can reciprocate up and down along the supporting seat; a self-locking wedge block is arranged on the heading machine supporting arm; a plurality of wedge block semi-closed grooves are formed in the fixed seat in the moving direction of the fixed seat; the wedge block semi-closed groove comprises a locking lock catch matched with the tip end of the self-locking wedge block, a directional concave table arranged below the locking lock catch and a side baffle connected with the locking lock catch and the directional concave table. The self-locking wedge block can enter or leave the wedge block semi-closed groove under the action of the wedge block driving mechanism. The self-locking wedge block is matched with the wedge block semi-closed groove, self-locking of the supporting base and the fixing base is completed, and the situation that when an oil cylinder arranged in the supporting base drives the fixing base, the positions of the supporting base and a supporting arm of the heading machine exceed the stroke is avoided. The excavation expanding effect of the vertical shaft heading machine is greatly improved, and then the construction efficiency of heading through the heading machine in vertical shaft construction is improved.

Description

technical field [0001] The invention belongs to the field of underground large-diameter and ultra-deep shaft installation, and in particular relates to a vertical shift device suitable for a roadheader, a roadheader and a vertical shift method thereof. Background technique [0002] At present, modern excavation equipment such as shield machines and pipe jacking machines are widely used in the horizontal tunnel construction of subways and underground pipelines in cities, while the corresponding subway starting and receiving shafts, civil air defense ventilation, underground three-dimensional parking garages and other shafts are constructed. However, most of them use open excavation or traditional excavator construction methods, which have a long construction period, high site requirements and high construction costs. [0003] In contrast, the shaft boring machine working method has the characteristics of high degree of mechanization, high construction accuracy of the shaft, s...

AI Technical Summary

Problems solved by technology

Therefore, in the actual excavation process of the shaft boring machine, in order to achieve different excavation effects such as stepping in the depth of the same pipe wall end face or matching with the stepping of the pipe wall, it is necessary to adjust the vertical height of the main machine of the tunneling equipment, especially Especially during the construction process, the relative position of the support arm is likely to change when it is subjected to the reverse thrust of the milling head, resulting in a decrease in the verticality accuracy of the excavation. It needs to be calibrated frequently through monitoring and testing and auxiliary agencies, and the construction is difficult; and once excavation occurs The verticality deviation will cause the digging operation to tilt or even damage the milling head, which will bring serious quality problems and safety hazards to the entire construction

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