Pipe expanding device

Abstract

The invention relates to the field of pipe diameter expanding equipment, in particular to a pipe expanding device. The pipe expanding device comprises a device main body, a pipe expanding device bodyis movably installed on the left side inside the device main body, an upper oil cavity is formed in the upper end inside the pipe expanding device body, a first triggering block is movably installed inside the upper oil cavity, a lower oil cavity is formed in the lower end inside the pipe expanding device body, a residue scraping rod is movably installed inside the lower oil cavity, an oil outletblock is fixedly installed on the left side of a first triggering block, and the oil outlet block is in an inverted trapezoidal shape with the two inclined sides, so that the first triggering block can drive the oil outlet block to move upwards together after moving upwards, and lubricating oil in the upper oil cavity can move downwards from gaps between the two sides of the oil outlet block and the pipe expanding device body, and the outer side of the pipe expanding rod is covered with the lubricating oil before a pipe makes contact with the pipe expanding rod, so that the effect of automatically smearing the lubricating oil is achieved, the pipe expanding efficiency of the device main body is improved, and the friction efficiency between the pipe expanding device body and the device mainbody can be reduced while the movement of the pipe expanding device is limited through rolling balls fixedly installed inside the device main body.

Description

technical field [0001] The invention relates to the field of pipe diameter expanding equipment, in particular to a pipe expanding device. Background technique [0002] In the production of pipes, for the sake of production efficiency and production cost, pipes with fixed diameters are usually produced directly. However, when various pipes in refrigeration, petroleum, chemical, shipbuilding, electric power and other industries are connected to containers, it is usually necessary to change the diameter of the pipes to suit the container. Therefore, it is necessary to use a pipe expander to expand the diameter of the pipe. [0003] In order to reduce the friction between the pipe expansion rod and the pipe, the existing pipe expansion device usually applies a layer of lubricating oil on the outside of the pipe expansion rod to improve the pipe expansion efficiency and pipe quality. Most of the lubricating oil is applied manually, which makes it necessary to wait for the worker...

AI Technical Summary

Problems solved by technology

[0003] In order to reduce the friction between the pipe expansion rod and the pipe, the existing pipe expansion device usually applies a layer of lubricating oil on the outside of the pipe expansion rod to improve the pipe expansion efficiency and pipe quality. Most of the lubricating oil is applied manually, which makes it necessary to wait for the workers to apply lubricating oil after each pipe expansion, which greatly reduces the efficiency of pipe expansion. At the same time, after the existing lubricating oil is applied, the excess is directly discharged, which cannot Recycling of lubricating oil increases the cost of pipe expansion

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