Assembly comprising shoveling and milling machine arm frame and milling and digging device

Abstract

The invention provides an assembly comprising a shoveling and milling machine arm frame and a milling and digging device. A quick-changing device of the shoveling and milling machine arm frame is connected with the base of the milling and digging device; the milling and digging device comprises the base, a milling and digging arm, a milling and digging headstock, a milling and digging head and a stabilizing oil cylinder; the base is connected with one end of the milling and digging arm through a rotary support; the other end of the milling and digging arm is rotatably connected with the milling and digging headstock; the milling and digging head is mounted on the milling and digging headstock; one end of the stabilizing oil cylinder is rotatably connected with the milling and digging arm;and the other end of the stabilizing oil cylinder is rotatably connected with the milling and digging headstock. In the assembly, the rotary support is additionally arranged in the milling and diggingdevice to replace traditional bolt connection, so that the working range and the variable angle of the milling and digging head are greatly increased, and the usable occasions of the assembly are expanded. The quick-changing device is provided with an independent quick-changing oil cylinder and a quick-changing pin, so that the milling and digging device is quickly detached, a bucket and other types of construction equipment are mounted; and during the entire process, the quick-changing oil cylinder is adopted to lock the milling and digging device, so that the equipment universality is enhanced while lowering the manual labor intensity.

Description

technical field [0001] The invention relates to the technical field of tunnel construction equipment, in particular to an assembly including an arm frame of a scraper milling machine and a milling and digging device. Background technique [0002] The drill and blast method is often used in the tunnel excavation process, but the foundation settlement and environmental pollution caused by the drill and blast method during the construction process are relatively large, and are restricted by the natural environment. For areas where the tunnel depth is shallow and there are buildings on the ground, For example, roads and bridges, residences and iron towers, etc., the drilling and blasting method construction cannot completely guarantee the safety of ground buildings, and at the same time, closed construction is required, which is not conducive to the operation of ground traffic and has a great impact on the safety of surrounding personnel. In order to ensure the safety of excavati...

AI Technical Summary

Problems solved by technology

[0004] The blasting excavation method using partition blasting has high requirements for blasting quality control, difficulty in protecting the surrounding infrastructure, high construction safety risks, high construction costs, and slow progress. At the same time, there will be varying degrees of under-excavation in blasting, which will affect subsequent construction. The method of adding a milling head to the machine can effectively complete the section cleaning after blasting and trim the contour. At the same time, some areas with low rock strength can be milled separately to reduce the frequency of blasting. However, the modified milling head The working capacity and milling range are limited by the parameters of the excavator itself, the milling range is small, and it cannot adapt to the milling conditions in areas with high strength rocks

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