Scraping-rolling machine boring rod spiral sealing mechanism and scraping-rolling machine

Abstract

The invention discloses a scraping-rolling machine boring rod spiral sealing mechanism and a scraping-rolling machine, wherein the scraping-rolling machine boring rod spiral sealing mechanism comprises a flange plate, a reciprocating sealing piece and a rotary sealing piece; the outer edge of the flange plate is fixedly connected with a wall plate at an opening part of an oil receiver, so that the flange plate covers the opening part; an installation hole is arranged in the middle of the flange plate, and a boring rod is arranged in the installation hole in a penetrating way; the reciprocating sealing piece is arranged between the inner wall of the installation hole and the boring rod; and the rotary sealing piece is sheathed on the boring rod and is clung to the end surface of the flange plate, close to a boring rod box. The scraping-rolling machine boring rod spiral sealing mechanism and the scraping-rolling machine can realize the rotary sealing and the reciprocating sealing of the boring rod simultaneously, and are simple in structure and stable in performance.

Description

technical field [0001] The invention relates to a sealing structure, in particular to a screw sealing mechanism of a boring bar of a scraper and a scraper. Background technique [0002] With the rapid development of construction machinery related industries, the demand for the quantity and quality of oil cylinder products is increasing. The traditional truss grinding processing method can no longer meet the requirements of manufacturers for production efficiency and production quality, and is gradually being processed by scraping and rolling machines. way replaced. [0003] The scraping and rolling machine uses a combined tool to process the cylinder barrel of the oil cylinder, and the processing procedures such as rough boring, scraping, and rolling are completed at one time, and the processing efficiency can reach more than ten times that of the traditional beam grinding processing method. In a few years, it may replace traditional processes such as girder grinding and be...

AI Technical Summary

Problems solved by technology

In actual work, the boring bar needs to rotate frequently and do axial reciprocating motion, and the moving speed of the boring bar is fast, the pressure oil in the oil receiver can easily leak from the mounting gap of the boring bar with the movement of the boring bar out, affecting the normal operation of machine tools, and causing pollution and waste

[0004] In view of the above problems, the existing scraper machine tools generally adopt the combination of labyrinth seal and radial seal, such as figure 1 As shown, it is a schematic diagram of the sealing structure of the boring bar of the existing scraping machine. The two ends of the boring bar 10 are respectively connected to the oil receiver 20 and the boring bar box 30. The oil receiver 20 is fixed, and the boring bar 10 needs to rotate relative to the oil receiver. and axial reciprocating movement, the oil receiver 20 is provided with an opening 201 on the side close to the boring bar box 30, which is used to install the boring bar 10, and a labyrinth sealing mechanism and a radial The sealing structure is used to connect the boring bar 10 and the oil receiver 20 and prevent oil leakage at the joint. The entire sealing mechanism is relatively complicated, and there are also defects in the following aspects:

[0005] 1. There are gaps in the existing labyrinth seal structure, the seal is not tight, and the pressure oil in the oil receiver is easy to leak

[0006] 2. Bearing parts are soaked in high-temperature oil for a long time, which is easy to corrode and damage

[0007] 3. The degree of cooperation between the boring bar and the labyrinth kit is difficult to achieve an ideal state, and there is a matching gap. Therefore, when the boring bar performs axial reciprocating sliding and rotating motion relative to the labyrinth sleeve, it is easy to cause damage to the parts

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