Automatic lifting and anti-swaying device for drill pipe and maintenance method for drill pipe

Abstract

The invention relates to a drill rod automatic lifting anti-swing device and a drill rod maintaining method. A left chuck (28) and a right chuck (29) are arranged on the left side and the right side of a boring hole of a lathe (5); the device comprises a drill rod support (1), a pneumatic lifting device and an anti-swing device body, the drill rod support (1) comprises two parallel supporting rods (2), the pneumatic lifting device is located under a center line of the boring hole of the lathe (5) and comprises two air cylinders (6), a first rolling wheel support (7) and a first rolling wheel set (8), and the air cylinders (6) are connected a gas switch (9) which is connected with a pressure fan (10); the anti-swing device body comprises a supporting base (14), a fixing support (15), a motor (16), a speed changing box (17) and a rolling wheel support containing box (18), the motor (16) is connected with a motor two-direction switch (19), a second rolling wheel support (24) is fixed into the rolling wheel support containing box (18), and two second rolling wheel sets (25) are fixed to the second rolling wheel support (24). By means of the method, the device is matched with the lathe (5) to maintain a drill rod. The drill rod automatic lifting anti-swing device and the drill rod maintaining method have the beneficial effects of saving cost and improving efficiency.

Description

technical field [0001] The invention relates to the field of geological exploration, in particular to an automatic lifting and anti-swing device for drill pipes and a maintenance method for drill pipes. Background technique [0002] As we all know, drill pipe is an indispensable drilling tool in drilling work. When the drill pipe is tripped and connected to a single piece, the threaded thread of the drill pipe joint will wear out. When the threaded thread is worn to a certain extent, in order to ensure downhole safety Repairs to the drill pipe thread are required. [0003] In the prior art, the drill pipe is generally directly repaired by a lathe. This method has the following disadvantages: 1. In the repair process, mechanical equipment such as cranes and pipe grabbers are needed, and the automatic loading of the drill pipe cannot be directly realized. 1. Getting off the lathe, the operation process is more complicated and wastes resources, and the production cost is highe...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the drill pipe is generally directly repaired by a lathe. This method has the following disadvantages: 1. In the repair process, mechanical equipment such as cranes and pipe grabbers are needed, and the automatic loading of the drill pipe cannot be directly realized. 1. Getting off the lathe, the operation process is more complicated and wastes resources, and the production cost is higher; 2. The length of the drill rod is about 9.6 meters, the length of the boring hole of the lathe is only about 1.5 meters, and the drill rod exposed outside the lathe is about 8.1 meters. When the chuck drives the drill pipe to rotate at high speed, the drill pipe exposed outside the lathe will make irregular circular motions according to the speed of the lathe. It is easy to cause damage to the lathe, and at the same time, the screw thread of the drill pipe joint repaired by the lathe cannot guarantee the repair quality

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