The fixed transmission structure of the rotary drilling frame of the ultra-large caliber drilling rig

Abstract

The fixed transmission structure of the rotary drill frame of the ultra-large-caliber drilling rig is provided with a threaded structure and an axial sliding keyway structure from top to bottom on the periphery of the vertical rotating pipe of the "┴"-shaped rotary drill frame. When the motor drives the pinion to rotate At the same time, the driving gear drives the rotating pipe to rotate through the key fit, and the rotating pipe rotates through the cooperation with the large nut; the sliding keyway structure is matched with the axial sliding key to install the driving gear, the thread structure, the thread is fitted with a fixed and screw The large nut that is pushed is equipped with an upper support bearing and an electromagnet on the upper part of the large nut, and the lower part of the large nut is sequentially equipped with a rotating support bearing, a large driving gear, a lower support bearing and a cross support frame. The fixed transmission structure is one of the key components of the super-large-diameter drilling rig. It can not only fix, rotate, follow up and withdraw the working frame of the drilling machine at any time, but also has a simple structure and transmission Flexible, low horsepower loss.

Description

technical field [0001] The invention relates to a transmission device of a super-large-caliber drilling rig, in particular to a fixed transmission structure of a rotary drilling frame of a super-large-diameter drilling rig. Background technique [0002] At present, the drilling diameters of existing drilling machines are mostly relatively small, and the depth of drilling is not enough. This is very unfavorable to drilling operations. Not only can it not meet the difficulty requirements of drilling, but also waste too many resources in the drilling operation process. First, the existing drilling rigs are large in size and difficult to transport. Second, the energy used is large, which makes drilling costs increase, especially for ultra-large diameter drilling operations. The 3rd, the structure of large drilling rig is complicated, and the whole machine is expensive, such as the propulsion drilling rig used in the subway project is exactly like this. Contents of the inventi...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the drilling calibers of existing drilling machines are relatively small, and the drilling depth is not enough

This is very unfavorable to drilling operations. Not only can it not meet the difficulty requirements of drilling, but also waste too many resources in the drilling operation process. First, the existing drilling rigs are large in size and difficult to transport. Second, the energy used is large, which makes drilling costs increase, especially for ultra-large diameter drilling operations

The third is that the structure of large drilling rigs is complex, and the whole machine is expensive, such as the propulsion drilling rigs used in subway projects

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