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Measurement and key installation method for tangential key grooves of trunnion of large and medium-sized converter

An installation method and tangential key technology, applied in the direction of measuring devices, mechanical measuring devices, mechanical devices, etc., can solve problems such as large interference, gluing, and scratches on the key surface, so as to avoid the installation cycle and meet the contact area Requirements, the effect of accurately measuring the size of the keyway

Inactive Publication Date: 2021-02-19
YANGCHUN NEW STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The installation of the key generally adopts the method of pressing with external force, but due to the large amount of interference, improper operation of the pressing method will lead to defects such as scratches and gluing on the surface of the key. Therefore, we propose a method for large and medium-sized converter lugs. Shaft tangential keyway measurement and key installation method to solve the above problems

Method used

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  • Measurement and key installation method for tangential key grooves of trunnion of large and medium-sized converter
  • Measurement and key installation method for tangential key grooves of trunnion of large and medium-sized converter
  • Measurement and key installation method for tangential key grooves of trunnion of large and medium-sized converter

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Effect test

Embodiment 1

[0037]Example 1: ReferenceFigure 1-3, The present invention discloses a method for measuring and key installation of the tangential keyway of the trunnion of a large and medium-sized converter, which includes the following steps:

[0038]S1, the width of the key slot, processing a required measuring module, spare;

[0039]S2. Use section steel to make brackets to fix the converter body on both sides of the front and back of the converter to prevent the body from shaking and cause the keyway to be misaligned;

[0040]S3. Assemble the primary reducer and secondary large gear, and turn the primary reducer so that the keyways on both sides of the large gear are aligned with the keyways on both sides of the trunnion;

[0041]S4. Measure the width of the keyway on both sides with an internal micrometer to make the width on both sides basically the same, and the measurement error is controlled within 0.1mm;

[0042]S5. Place a dial indicator on the measuring module to measure the size of the keyway of th...

Embodiment 2

[0054]Example 2: ReferenceFigure 1-3, The present invention discloses a method for measuring and key installation of the tangential keyway of the trunnion of a large and medium-sized converter, which includes the following steps:

[0055]S1, the width of the key slot, processing a required measuring module, spare;

[0056]S2. Use section steel to make brackets to fix the converter body on both sides of the front and back of the converter to prevent the body from shaking and cause the keyway to be misaligned;

[0057]S3. Assemble the primary reducer and secondary large gear, and turn the primary reducer so that the keyways on both sides of the large gear are aligned with the keyways on both sides of the trunnion;

[0058]S4. Measure the width of the keyway on both sides with an internal micrometer to make the width on both sides basically the same, and the measurement error is controlled within 0.1mm;

[0059]S5. Place a dial indicator on the measuring module to measure the size of the keyway of th...

Embodiment 3

[0071]Example 3: ReferenceFigure 1-3, The present invention discloses a method for measuring and key installation of the tangential keyway of the trunnion of a large and medium-sized converter, which includes the following steps:

[0072]S1, the width of the key slot, processing a required measuring module, spare;

[0073]S2. Use section steel to make brackets to fix the converter body on both sides of the front and back of the converter to prevent the body from shaking and cause the keyway to be misaligned;

[0074]S3. Assemble the primary reducer and secondary large gear, and turn the primary reducer so that the keyways on both sides of the large gear are aligned with the keyways on both sides of the trunnion;

[0075]S4. Measure the width of the keyway on both sides with an internal micrometer to make the width on both sides basically the same, and the measurement error is controlled within 0.1mm;

[0076]S5. Place a dial indicator on the measurement module to measure the size of the keyway of ...

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Abstract

The invention discloses a measurement and key installation method for tangential key grooves of a trunnion of a large and medium-sized converter, and relates to the technical field of converter tilting mechanisms of converter steelworks in the metallurgical industry. The measurement and key installation method comprises the following steps that S1, the widths of the key grooves are determined, anda required measurement module is machined for standby application; S2, a converter body is fixed to the front side and the rear side of the converter through supports made of profile steel, and key groove dislocation caused by shaking of the converter body is prevented; and S3, a primary speed reducer, a secondary large gear and the like are assembled, the primary speed reducer is turned, and thekey grooves in the two sides of the large gear are aligned with the key grooves in the two sides of the trunnion. According to the measurement and key installation method for the tangential key grooves of the trunnion of the large and medium-sized converter, the key groove size is accurately measured, the contact area between keys and the trunnion and the contact area between the keys and a largegear hub are measured, the tangential keys are ground conveniently, the tangential key installation quality is improved, enough magnitude of interference can be met, and thus the contact area requirement is met, the quality is completely controlled, and the maintenance or key installation period is prevented from being influenced by key damage.

Description

Technical field[0001]The invention relates to the technical field of a converter tilting mechanism of a converter steelmaking plant in the metallurgical industry, in particular to a measurement and key installation method for the tangential keyway of the trunnion of a large and medium-sized converter.Background technique[0002]The converter is a metallurgical furnace with a rotatable furnace body used for steel blowing or matte blowing. The converter body is made of steel plate and is cylindrical, lined with refractory materials. It is heated by chemical reaction heat during blowing without external heating source. It is the most important steelmaking equipment. The converter gear is an important device for converter transmission. It is usually located between the converter trunnion and the drive shaft of the primary reducer, and is mainly responsible for the torque transmission of the reducer. The converter trunnion and the large gear are usually connected by a tangential key pair.[...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C5/46C21C5/50G01B5/02
CPCC21C5/4673C21C5/50G01B5/02
Inventor 苏俊兵李延肖建平
Owner YANGCHUN NEW STEEL CO LTD
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