A kind of drilling and expanding equipment

Abstract

The invention relates to the technical field of engineering equipment, in particular to hole drilling and slot expanding equipment. The hole drilling and slot expanding equipment comprises a drilling machine, a supporting frame, a connecting rod, a drill rod and a drill bit; a sliding rail is arranged on the supporting frame; the drilling machine is connected with the supporting frame through the sliding rail; the drilling machine can move vertically through the guide of the sliding rail; the drill rod is connected with the drilling machine through the connecting rod; the drill bit is arranged at the lower end of the drill rod; a universal joint is arranged between the drill rod and the connecting rod; a guide device is also arranged on the drill rod. According to the hole drilling and slot expanding equipment, slotting treatment is performed in a flat and straight hole, and the capacity to resist external force of a filling rubber fixed rod piece is enhanced.

Description

technical field [0001] The invention relates to the technical field of engineering equipment, in particular to a drilling and slot expanding equipment. Background technique [0002] In order to install road auxiliary tools such as sound insulation screens and signs on roads and bridges, it is usually necessary to install embedded parts on the guardrails on both sides of roads and bridges to ensure the installation strength of road auxiliary tools. The construction of the bridge is carried out at the same time, and the construction is difficult and the pre-embedded position is not easy to control, which seriously affects the construction efficiency of roads and bridges and the installation effect of road auxiliary tools. [0003] When constructing roads, bridges, subway pipe galleries, etc., the embedded parts set in advance need relatively high precision to match the size of the installed equipment; however, the construction of high-precision embedded parts is difficult and ...

AI Technical Summary

Problems solved by technology

[0002] In order to install road auxiliary tools such as sound insulation screens and signs on roads and bridges, it is usually necessary to install embedded parts on the guardrails on both sides of roads and bridges to ensure the installation strength of road auxiliary tools. Simultaneous construction of the bridge, and the difficulty of construction and the difficulty of controlling the pre-embedded position have seriously affected the construction efficiency of roads and bridges and the installation effect of road auxiliary tools.

[0003] When constructing roads, bridges, subway pipe galleries, etc., the embedded parts set in advance need relatively high precision to match the size of the installed equipment; however, the construction of high-precision embedded parts is difficult and seriously affects The progress of the project construction, but the precision of the embedded parts is low, and often the equipment cannot be installed due to large deviations

[0004] The relatively simple method of installing auxiliary tools is that during road and bridge construction, no embedded parts are installed, and after the completion of the construction, the planting bars are fixed by drilling straight holes and filling glue, and the road auxiliary tools are further installed. This method is easy to construct, has high efficiency, and does not need to preset embedded parts; since the holes drilled on the guardrail are all straight holes with smooth inner walls, the installation strength of the road auxiliary tools is poor, and it cannot resist strong external forces; it can The way to improve its installation strength is to make grooves on the inner wall of the drilled straight hole, but none of the existing technologies can realize the work of grooves and reaming on the straight hole.

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