阅读说明：本技术 一种高频焊管轧机的封闭孔型组合轧辊 (Closed hole type combined roller of high-frequency welded pipe rolling mill ) 是由 原春光 于 2018-07-14 设计创作，主要内容包括：本发明公开了一种高频焊管轧机的封闭孔型组合轧辊,轧辊为分解结构,由磨损块、轧辊块固定为一体组成轧辊,所述轧辊的分解面在轧辊外环内弧处为斜面。本发明的特点是：磨损块改用Cr20材质制成,耐磨性能提高,而且轧辊分解面在轧辊外环内弧处改用斜面,使得淬火时应力集中小,不会在轧辊分解处掉碴,从而提高轧辊的使用寿命。(The invention discloses a closed hole type combined roller of a high-frequency welded pipe rolling mill, which is of a decomposition structure and is formed by integrally fixing a wear block and a roller block, wherein the decomposition surface of the roller is an inclined surface at the inner arc position of the outer ring of the roller. The invention is characterized in that: the wear block is made of Cr20 material, the wear resistance is improved, and the decomposing surface of the roller is changed into an inclined surface at the inner arc of the outer ring of the roller, so that the stress concentration is small during quenching, the slag is not dropped at the decomposing position of the roller, and the service life of the roller is prolonged.)

1. A closed hole type combined roller of a high-frequency welded pipe rolling mill is characterized in that: the roller is of a decomposition structure and is formed by fixing a wear block (1) and a roller block (2) into a whole, and a decomposition surface (4) of the roller is an inclined surface (5) at an outer ring inner arc (6) of the roller.

2. A closed hole type combined roller of a high-frequency welded pipe rolling mill is characterized in that: the roller is of a decomposition structure and is formed by fixing a wear block (1) and a roller block (2) into a whole, wherein the roller block (2) is made of Cr12, and the wear block (1) is made of Cr 20.

3. A closed-hole type combination roll of a high-frequency welded pipe rolling mill according to claim 1 or 2, characterized in that: the abrasion block (1) and the roller block (2) are fixed into a whole through a screw (3) to form the roller.

Technical Field

The invention relates to the field of manufacturing of high-frequency welded pipe production equipment, in particular to a closed hole type combined roller of a high-frequency welded pipe rolling mill.

Background

The roller of the existing high-frequency welded pipe rolling mill is divided into two parts, namely a roller block and a wear block, wherein the roller block and the wear block are made of the same material Cr12, but the wear block is made of Cr12, so that the wear is fast, the replacement frequency is high, the decomposition position of the roller block and the wear block is a flat surface, a sharp included angle is formed, when a workpiece is quenched, the stress is concentrated, the large included angle is easy to break, and the service life of the roller is short.

Disclosure of Invention

The invention aims to overcome the defects and provides a closed hole type combined roller of a high-frequency welded pipe rolling mill.

The technical scheme adopted by the invention for realizing the purpose is as follows: a closed hole type combined roller of a high-frequency welded pipe rolling mill is of a decomposition structure and is formed by integrally fixing a wear block and a roller block, and a decomposition surface of the roller is an inclined surface at the inner arc position of an outer ring of the roller.

A closed hole type combined roller of a high-frequency welded pipe rolling mill is of a decomposition structure and is formed by fixing a wear block and a roller block into a whole, wherein the roller block is made of Cr12 material, and the wear block is made of Cr20 material.

The abrasion block and the roller block are fixed into a whole through a screw to form the roller.

The invention is characterized in that: the wear block is made of Cr20 material, the wear resistance is improved, and the decomposing surface of the roller is changed into an inclined surface at the inner arc of the outer ring of the roller, so that the stress concentration is small during quenching, the slag is not dropped at the decomposing position of the roller, and the service life of the roller is prolonged.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Wherein: 1. the grinding device comprises a wear block 2, a roller block 3, a screw 4, a decomposition surface 5, an inclined surface 6 and an outer ring inner arc.

Detailed Description

As shown in figure 1, the invention is a closed hole type combined roller of a high-frequency welded pipe rolling mill, the roller is of a decomposition structure, a wear block 1 and a roller block 2 are fixed into a whole through a screw 3 to form the roller, in order to prolong the service life of the roller, the roller block 2 is made of Cr12, and the wear block 1 is made of Cr20, so that the wear resistance of the wear block is improved, and the replacement times are reduced; in order to prolong the service life of the roller, the decomposing surface 4 of the roller is processed into an inclined surface 5 at the inner arc 6 of the outer ring of the roller, so that the stress concentration is small during quenching, and slag is not dropped at the decomposing part of the roller, thereby prolonging the service life of the roller.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.