Power unit assembly of drill milling head

Abstract

The invention discloses a power unit assembly of a drill milling head. The power unit assembly is mounted on a front end face of a pipe cutter movable plate through a bottom plate, two paralleling linear guide rails are fixedly mounted on the bottom plate, and a box body is fixedly mounted on the linear guide rails. A lead screw is mounted on the bottom plate through a supporting seat and forms a lead screw nut pair with the box body. The box body can move along the linear guide rails under the drive of the lead screw. A hydraulic motor is fixedly mounted on a rear end face of the box body through a square flange, a motor shaft extends into a cylindrical hole of a rear end of a main shaft, and the motor shaft and the main shaft are connected by keys. The main shaft is in a form of single-pivot and two-way fixing. A cutter is integrally connected with a collet. A tapered wedge cushion block is additionally mounted on the pipe cutter movable plate, the power unit assembly of the drill milling head is fixedly mounted on the tapered wedge cushion block, so that an inclination angle of the power unit assembly of the drill milling head is changed, the cutter inclines during milling, and a welding groove can be directly formed on an end face of a pipeline during pipeline cutting, and integral operation of a cutting pipe and the groove can be achieved. The power unit assembly of the drill milling head is simple in structure and easy to achieve.

Description

technical field [0001] The invention relates to a rapid repair equipment for fluid pipelines, in particular to a drilling and milling head power assembly of a pipeline cutting machine for cutting pipelines. Background technique [0002] Once a Type A accident that requires large-scale maintenance and repair operations occurs in an oil and gas pipeline, first, the loss is huge, and second, maintenance and repair work is urgent, requiring the use of large-scale plugging equipment and repair tools. For pipe replacement, the pipe is generally cut at both ends of the damaged position, then the pipe ends are beveled, and finally the pipe is welded. Therefore, the pipe cutting machine is one of the important equipment in the pipeline maintenance and repair construction. At present, when cutting accident pipelines, wire saws, guillotine pipe saws, turning or milling with saw blades are usually used. However, these methods of cutting pipelines have the following problems: 1. Many pi...

AI Technical Summary

Problems solved by technology

At present, when cutting accident pipelines, wire saws, guillotine pipe saws, turning or milling with saw blades are usually used. However, these methods of cutting pipelines have the following problems: 1. Many pipelines need to be cut The cutting of the pipe can only be completed by the circumferential cutting of the rounds. At the same time, the cutting tool wears seriously during the cutting process, requiring multiple tool changes

If the cutting time is too long, it will affect the rapid repair of the accident pipeline, and even cause a condensation accident in severe cases

2. Due to the influence of oil and gas pipeline stress and inclined laying, when cutting, the clamping force at the incision is large, and it is easy to clamp the knife. In severe cases, the pipe cutting work cannot be completed

The existing pipe cutting machine cannot realize the rapid cutting of high-strength steel pipes at the accident site, especially the rapid cutting of X80 steel pipes

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