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Automatic drilling machine without drill rod

A technology without drill pipes and rigs, which is applied in the direction of drill bits, drilling equipment, earthwork drilling, etc. It can solve the problems of increasing hoist load, twisting drill pipes or drill bits, and inconvenient transportation, so as to reduce load, improve mobility, and facilitate transport effect

Active Publication Date: 2013-06-19
王学明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two kinds of drilling rigs generally have the following problems: one is that there must be heavy drill pipes, which is very inconvenient to transport, and accidents often occur in the replacement process; the other is that one-way rotation is easy to generate huge torque, thereby spraining the drill pipes Or drill bit; In addition, due to the increase in the number of drill pipes during operation, its weight is getting larger and larger, thus increasing the load on the hoist

Method used

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  • Automatic drilling machine without drill rod

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Embodiment Construction

[0011] When the submersible motor (4) is running, through the power conversion of the reduction box (5) and the transfer case (6), the forward rotary drill bit (10) and the reverse rotary drill bit (9) are rotated simultaneously, because the forward drill bit (10 ) diameter is small, and the diameter of the echo drill bit (9) is large, so two torques in positive and negative directions will be generated during the excavation process, which will cancel each other because of the different directions; even if a small torque difference is generated due to the difference in resistance, it will not make the entire The body rotates because the guide wing (2) on the body and the guide bar (3) plays a role. The sharp blade on the guide wing (2) is embedded in the soil and can only move up and down, with huge horizontal resistance; thereby ensuring that the whole body does not Reverse, the purpose of smooth and rapid excavation is achieved through the interactive rotary digging of the tw...

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PUM

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Abstract

The invention discloses an automatic drilling machine without a drill rod, which is a novel submersible drilling machine, realizes bidirectional rotation and double-drill tunneling and does require a drill rod. The body rotation caused by eccentric torque is overcome by use of the principle of opposite-torque cancellation and a method of adding a guide wing; as the drill rod is saved, the drilling machine obtains high mobility and is convenient to transport; meanwhile, due to the constant weight, the load of an elevator is reduced, and automatic control is convenient; and moreover, frequent replacement of drill rods is avoided, and the working efficiency is improved.

Description

Technical field [0001] The invention is a very advanced submersible drilling rig, which is a two-way rotary drilling rig with double drill bits; it can realize automatic excavation without drilling rods, and has strong controllability and high degree of automation. Background technique [0002] There are no more than two kinds of rotary drilling rigs in use today: one is a rotary disc drilling rig, the power device is on the ground, and the drill bit below is driven by driving the rotation of the drill rod. Another kind is common submersible drilling rig, and its power part is underground, drives the drill bit to rotate and excavate through submersible motor, and its drill pipe does not rotate. These two drilling rigs generally have the following problems: one is that there must be heavy drill pipes, which is very inconvenient to transport, and accidents often occur in the replacement process; the other is that one-way rotation is easy to generate huge torque, thereby sprain...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B4/04E21B4/16E21B10/60
Inventor 王学明
Owner 王学明