A mobile road tunnel inverted arch construction trestle vehicle

Abstract

The invention discloses a motorized highway tunnel inverted arch construction trestle car which comprises an invert bridge, a guiding unit and a driving unit. The guiding unit comprises two front wheels, a first supporting rod, first gears, a second gear, a chain and a handle. Each front wheel is connected with one end of the first supporting rod. Rotation in the circumferential direction of the front wheels can be generated between the front wheels and the first supporting rod. The driving unit comprises two rear wheels, a spindle, a second supporting rod, a third gear, a transmission belt, a sleeve and an engine. The rear wheels are installed at the two ends of the spindle. Each rear wheel is connected with one end of the second supporting rod. According to the motorized highway tunnel inverted arch construction trestle car, through the combined action of the guiding unit, the driving unit, an automatic hydraulic lifting supporting rod and other devices, operation procedures are simplified in the highway tunnel inverted arch construction process, the paving time and the removing time are shortened, one-man operation is achieved, a traveling plane which is stable enough can be provided, and meanwhile, safety is ensured.

Description

technical field [0001] The invention belongs to the technical field of tunnel trestle bridges, in particular to a motorized road tunnel inverted arch construction trestle vehicle. Background technique [0002] At present, in the excavation process of the inverted arch of the highway tunnel, a high-rigidity three-dimensional trapezoidal steel structure welded by I-beams and steel bars is used, and the excavator is used in conjunction with the wire rope to erect and remove the two steel structures in parallel. , there are the following problems: (1) In the process of removing and erecting the trestle bridge, it is necessary to use excavators and wire ropes for dragging operations. The operation process is complicated, and the construction process consumes a lot of time and manpower. There are safety hazards in the removal process. (2) In the process of erecting the trestle bridge, it is very easy for the left and right sides of the bridge deck and the upper and lower lines to...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the defects existing in the prior art, the object of the present invention is to provide a motorized road tunnel inverted arch construction trestle vehicle, which solves the trestle erection caused by the existing use of excavators and steel wire ropes for temporary welding trestles of road tunnel inverted arches. In the process of dragging and removing, the operation process is complicated, the time and manpower consumption is large, there are hidden dangers, and there are problems such as the left and right sides of the two bridge decks and the upper and lower lines are not parallel.

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