Pipe shed drill jumbo with steel pipe extrusion connector

Abstract

The pipe shed drill jumbo comprises a drill jumbo body, a multi-degree-of-freedom drill arm and a propelling beam assembly, one end of the multi-degree-of-freedom drill arm is connected with the drill jumbo body, the propelling beam assembly is arranged at the other end of the multi-degree-of-freedom drill arm, and a drill rod clamping mechanism is arranged on the propelling beam assembly. The drill rod clamping mechanism is provided with a steel pipe extrusion connector, and the steel pipe extrusion connector is arranged outside a casing drilling tool of the hydraulic rock drill in a sleeving mode and matched with the casing drilling tool. According to the steel pipe extrusion connector, under the action of the wedge block mechanism, the extrusion claws extrude a pipeline located in the inner cylinder sleeve. According to the steel pipe extrusion connector, a wedge block mechanism is used for extruding a pipe to form a groove buckle structure, and quick connection of a sleeve is completed. When the hinged sleeve is in a soft and hard interaction stratum and the drilling straightness is poor, the phenomenon of blocking is not caused, meanwhile, long-distance pipe shed drilling construction is achieved, and the pipe shed construction efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of pipe shed construction, in particular to a pipe shed rock drilling rig with a steel pipe extrusion connector. Background technique [0002] In the excavation and construction of soft rock tunnels, in order to prevent the soil layer from collapsing and the surface subsidence, a hole is drilled above the tunnel vault and a thick-walled steel pipe with a large moment of inertia is installed to form an advanced pipe shed and provide temporary advanced support. function to ensure the safe operation of the excavation and subsequent support processes. The length of the tube shed is determined according to the geological conditions. The length of the pipe shed steel pipe is generally not less than 10 meters. During the drilling process, the steel pipe needs to be lengthened and connected. The conventional connection method is threaded connection, which is difficult to connect, and it is difficult to form holes...

AI Technical Summary

Problems solved by technology

The conventional connection method is screw connection, which is difficult to operate and difficult to form holes in the soft-hard stratum, which is not conducive to the use of rock drilling rigs for pipe shed drilling construction

[0003] In the prior art, a rock drilling jumbo with the function of pushing and installing the pipe shed such as the publication number CN207110955U has the following defects: it is difficult to disassemble the drill rod without assembling the drill rod clamp; When the pipe shed is drilled, the connection of the steel pipe cannot be completed; the front-end pipe supporter is in the shape of a half ring, and the guiding function is not good

The publication number is CN208749294U, a multifunctional drilling rig and a pipe shed installation device, which has the following disadvantages: firstly drill a hole and then install the pipe shed, if hole collapse occurs in soft rock stratum, it will cause difficulty in installing the pipe shed

The steel pipe is connected by thread to form a rigid connection. In the soft and hard stratum, when the straightness of the drilling hole is poor, it will cause the phenomenon of pinning.

The top hammer type follower pipe drilling thruster and drilling equipment with the publication number CN112855013A have the following defects: steel pipes are rigidly connected by threaded connections, and in soft-hard interactive formations, when the straightness of the borehole is poor, it will cause the phenomenon of carding

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