Oil drill rod circumferential surface rust removing device

Abstract

The invention discloses an oil drill rod circumferential surface dust removing device which comprises a machine frame, a power box, a three-jaw chuck and an annular plate. Holding plates are arranged in the annular plate. The holding plates are three arc plates which are formed after the whole annular plate is equally divided into three parts. The inner surface of each holding plate is provided with polishing abrasive paper. The middle of the outer surface of each holding plate is connected with a sliding block in a welded mode. The annular plates are provided with three equally-divided cylindrical holes. The sliding blocks are arranged in the cylindrical holes. Bosses are fixedly arranged outside the cylindrical holes. First thread holes are formed in the bosses. Bolts are arranged in the first thread holes. The annular plates are fixed to a sliding base in a welded mode. The sliding base is arranged on the machine frame and can move on the machine frame in parallel. The sliding base is provided with a second thread hole. A screw rod is arranged in the second thread hole. A screw rod is arranged in the second thread hole. A gear is connected to the left end of the screw rod. The outer circumference of the three-jaw chuck is provided with an annular rack. The rack is engaged with the gear. According to the oil drill rod circumferential surface dust removing device, the polishing strength can be adjusted, it is ensured that dust on the surface of a drill rod is thoroughly removed, and the efficiency is higher.

Description

technical field [0001] The invention relates to the field of petroleum equipment, in particular to a rust removal device for the peripheral surface of petroleum drill pipes. Background technique [0002] Oil drill pipe is an indispensable and important tool in oil drilling operations. After use, the surface of the oil drill pipe will form a dirt layer and rust layer. During equipment maintenance, the oil drill pipe needs to remove the dirt layer and rust layer on the surface. The operation of the prior art is to use a manual hand-held grinder for grinding. To remove the dirt layer and rust layer, this method has the following disadvantages, the construction period is long, the construction personnel's operation intensity is high, and the efficiency is extremely low. Therefore, how to replace this traditional grinding method has become an urgent problem for those skilled in the art and technicians. question. [0003] In a kind of oil drill pipe surface derusting device whos...

AI Technical Summary

Problems solved by technology

After use, the surface of the oil drill pipe will form a dirt layer and rust layer. During equipment maintenance, the oil drill pipe needs to remove the dirt layer and rust layer on the surface. The operation of the prior art is to use a manual hand-held grinder for grinding. To remove the dirt layer and rust layer, this method has the following disadvantages, the construction period is long, the construction personnel's operation intensity is high, and the efficiency is extremely low. Therefore, how to replace this traditional grinding method has become an urgent problem for those skilled in the art and technicians. question

[0003] In a kind of oil drill pipe surface derusting device whose notification number is CN205363514U, the sandpaper to be polished is arranged on four ring-shaped holding plates respectively, and the four holding plates form a complete ring and the outer circumferential surface of the drill pipe is Completely cover, and then move the device in parallel to make sandpaper on the surface of the drill pipe for grinding and rust removal. Compared with the traditional rust removal method, the above-mentioned documents have obviously improved the efficiency, but there are some defects in it as follows: 1. The diameter of the drill pipe is different. , the drill pipe with a small diameter cannot be in contact with the sandpaper and cannot be polished. For the drill pipe with a large diameter, the holding plate will be stretched, and there will be a gap between the holding plates, and the annular plate will move along the axial direction of the drill pipe. The surface of the drill pipe at this gap cannot be polished by sandpaper; 2. The structure is complex, which makes the installation process of the drill pipe cumbersome; 3. The efficiency of rust removal is low, and the sandpaper needs to be moved many times to remove the rust layer of the basic structure

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