Hole drilling and expanding integrated device

Abstract

The invention relates to the technical field of drilling and hole expanding, in particular to a hole drilling and expanding integrated device. The hole drilling and expanding integrated device is characterized by comprising a driving shaft, a first hole expanding ring body, a second hole expanding ring body, a roller bit, hole expanding teeth, a hole expanding tooth groove, key grooves and a chipping storage groove; the roller bit is a single roller bit or a three roller bit, wherein a cylindrical groove is formed inwards horizontally in the center of the left end surface of the roller bit; the driving shaft is cylindrical, and the right side end of the driving shaft is embedded into the cylindrical groove in the left end surface of the roller bit; the rectangular key groove is formed inward vertically in the edge of each of the top end and the bottom end of a vertical section in the center of the roller bit; the key grooves go deep into the driving shaft. The drilling and hole expanding integrated device has the functions of hole drilling and hole expanding at the same time, and can be used for expanding holes of different diameters, such that the hole expanding efficiency s improved, the construction cost is reduced and the construction period is shortened.

Description

【Technical field】 [0001] The invention relates to the technical field of drilling and reaming, in particular to an integrated device for drilling and reaming. 【Background technique】 [0002] Existing reamers, such as roller cone rock reamers, can play the role of reaming, but they can only ream holes with a specified diameter for one type of equipment, and the diameter of reaming is relatively single. In engineering practice, It is often necessary to expand holes with multiple apertures at the same time. At this time, people need to use multiple reamers with a specified single diameter at the same time, so the reaming efficiency is low, and the cost and labor resources are consumed. It also greatly reduces the construction cost. In addition, when people perform hole reaming operations, they often need to drill a certain deep hole in the rock formation through the roller cone bit, and then use the reamer to complete the reaming work. There are two types of drilling and reamin...

AI Technical Summary

Problems solved by technology

[0002] Existing reamers, such as roller cone rock reamers, can play the role of reaming, but they can only ream holes with a specified diameter for one type of equipment, and the diameter of reaming is relatively single. In engineering practice, It is often necessary to expand holes with multiple apertures at the same time. At this time, people need to use multiple reamers with a specified single diameter at the same time, so the reaming efficiency is low, and the cost and labor resources are consumed. It also greatly reduces the construction cost. In addition, when people perform hole reaming operations, they often need to drill a certain deep hole in the rock formation through the roller cone bit, and then use the reamer to complete the reaming work. There are two types of drilling and reaming. Separate equipment makes the construction efficiency not improved when drilling and reaming, the construction period is long, and the construction cost is also large

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