Rotary excavating machine spiral drilling bit with crushing function

Abstract

The invention discloses a rotary excavating machine spiral drilling bit with a crushing function. The rotary excavating machine spiral drilling bit with the crushing function comprises a connecting rod and a spiral drilling bit body, a threaded head is arranged at one end of the connecting rod, a threaded hole is formed in the outer wall of the bottom of the spiral drilling bit body, and the top inner wall of the threaded hole is bonded with a rubber pad. The threaded hole is matched with the specification of the threaded head, spiral pieces are uniformly welded to the outer walls of one sidesof the connecting rod and the spiral drilling bit body, skid resistance grooves are formed in the tops of the spiral pieces, and the skid resistance grooves are of an arc-shaped structure. Three crushing devices distributed equidistantly are arranged at the top of the spiral drilling bit body and comprise reinforcing blocks, and the reinforcing blocks are welded to top edge positions of the spiral drilling bit body. According to the rotary excavating machine spiral drilling bit with the crushing function, the three dispersive reinforcing blocks can be connected and fixed, the stability of thedevice is improved, crushed raw materials of the crushing devices can be further crushed, the crushing function of the device is improved, and crushed materials can be prevented from slipping when conveyed.

Description

technical field [0001] The invention relates to the technical field of auger bits, in particular to an auger bit for a rotary excavator with a crushing function. Background technique [0002] Rotary drilling rig is a construction machine suitable for hole-forming operations in building foundation engineering. It is widely used in the construction of bridges and tunnels. It is mainly composed of two parts, one part is the steel body, and the other is the tooth head. The tooth head is a hard alloy tooth head welded to the head of the steel body. In practice During the operation, it is widely used in various foundation constructions such as cast-in-place piles, diaphragm walls, and foundation reinforcement. When the auger bit of the rotary excavator is used, it is often worn and easily damaged, which increases the cost of use. When the auger is used, it is often necessary to crush the sundries in the tunnel, but the general auger bit crushing function is not good enough to mee...

AI Technical Summary

Problems solved by technology

It is widely used in the construction of bridges and tunnels. It is mainly composed of two parts, one part is the steel body, and the other is the tooth head. The tooth head is a hard alloy tooth head welded to the head of the steel body. In practice During the operation, it is widely used in various foundation constructions such as cast-in-place piles, diaphragm walls, and foundation reinforcement. When the auger bit of the rotary excavator is used, it is often worn and easily damaged, which increases the cost of use. When the auger is used, it is often necessary to crush the sundries in the tunnel, but the general auger bit is not good enough to meet people's requirements.

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