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High-temperature resistant and abrasion resistant type furnace bottom roller

A hearth roller and high temperature resistant technology, which is applied in furnaces, heat treatment furnaces, furnace types, etc., can solve the time-consuming and troublesome problems of assembling or disassembling rollers and roller shafts, achieve convenient and quick assembly or disassembly, and improve high temperature resistance The effect of oxidation

Inactive Publication Date: 2018-01-23
孙荣华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The hearth roller of the normalizing furnace is generally made of heat-resistant alloy steel, and generally includes a roller and a roller shaft connected to both ends of the roller. The roller shaft is inserted into the end of the roller and fixedly connected by interference fit. The main structure of this structure is The disadvantage is that it is time-consuming and labor-intensive to assemble or disassemble the roller and roller shaft

Method used

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  • High-temperature resistant and abrasion resistant type furnace bottom roller
  • High-temperature resistant and abrasion resistant type furnace bottom roller

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Embodiment Construction

[0015] The present invention will be further described below according to the accompanying drawings and in conjunction with the embodiments.

[0016] The high-temperature and wear-resistant hearth roller shown in the accompanying drawing includes a roller 1, two roller shafts 2, and a positioning pin shaft 3; the ends of the roller shaft 2 are provided with external threads, and the ends of the roller 1 are provided with internal thread holes , The external thread at the end of the roller shaft 2 is threadedly connected with the internal threaded hole at the end of the roller 1.

[0017] The positioning pin shaft 3 radially penetrates the inner threaded hole wall at the end of the roller 1 and is inserted into the end of the roller shaft 2 .

[0018] The surface of the roller 1 is provided with a high-temperature oxidation-resistant wear-resistant coating 1.1. In this embodiment, the high-temperature oxidation-resistant wear-resistant coating 1.1 is a MCrAlY coating.

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Abstract

The invention discloses a high-temperature resistant and abrasion resistant type furnace bottom roller comprising a roller cylinder and roller shafts connected to the two ends of the roller cylinder.Outer threads are arranged at the ends of the roller shafts. Inner thread holes are formed in the two ends of the roller cylinder. The outer threads at the ends of the roller shafts are connected withthe inner thread holes in the ends of the roller cylinder in a threaded mode. The further-improved aspects are that positioning pin shafts radially penetrating through the hole walls of the inner thread holes in the ends of the roller cylinder to be inserted in the ends of the roller shafts are arranged in the connection parts of the inner thread holes in the ends of the roller cylinder and the outer threads at the ends of the roller shafts, and a high-temperature oxidation resistant and abrasion resistant coating is arranged on the surface of the roller cylinder. Assembly or disassembly of the roller cylinder and the roller shafts is convenient and rapid, and high-temperature resistance, oxidation resistance and abrasion resistance are achieved.

Description

technical field [0001] The invention relates to a hearth roll of a normalizing furnace in steel rolling production. Background technique [0002] The hearth roller of the normalizing furnace is generally made of heat-resistant alloy steel, and generally includes a roller and a roller shaft connected to both ends of the roller. The roller shaft is inserted into the end of the roller and fixedly connected by interference fit. The main structure of this structure is The disadvantage is that it takes time and effort to assemble or disassemble the roller and the roller shaft. Contents of the invention [0003] The invention aims at the deficiencies of the prior art, and provides a high-temperature-resistant and wear-resistant hearth roller which can significantly improve the assembly or disassembly efficiency of the roller and the roller shaft. [0004] The present invention achieves technical goals through the following technical solutions. [0005] The high temperature and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/00
Inventor 孙荣华
Owner 孙荣华
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