A snap-in raise drilling rig

Abstract

The invention discloses a clamping type raise boring machine. The clamping type raise boring machine includes a base support, a telescopic mechanism, a drilling rod and a drilling bit. A telescopic groove and a connecting channel are respectively disposed at upper and lower sides of an inner ring sleeve, one end of the T-shaped telescopic rod sequentially passes through a telescopic groove and theconnecting channel and is then fixed on an outer side surface of a clamping plate, the other end of the T-shaped telescopic rod is limited in the telescopic groove, upper and lower ends of a connecting shaft are respectively inserted into T-shaped insertion clamping grooves of the clamping plate through T-shaped insertion clamping bars, so an outer ring sleeve and the inner ring sleeve can move up and down along the T-shaped telescopic rod. The clamping type raise boring machine is advantaged in that floating is more stable.

Description

technical field

[0001] The invention relates to a clamping type raise drilling machine. Background technique

[0002] At present, raise drilling rigs are mainly used in industries such as vertical shafts, inclined shafts, surge shafts, ventilation shafts and drainage shafts in hydropower projects, ventilation shafts in railway construction, and mine slag shafts. The drill bit in the raise drilling rig is the most important part of the whole mechanism. Generally, the drill bit includes a cutter head, a tool seat, and a hob. The tool seat is installed on the cutter head, and the hob is installed on the tool seat. The distribution and structure of the hob It has a great impact on the efficiency and stability of rock breaking. The existing hob has an integrated cylindrical structure, and grinding ribs are distributed on the side of the cylindrical structure. However, such an integrated hob will be damaged after long-term operation. Impact damage or severe wear, so the entire ho...

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