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Non-deformation thermal refining process of main shaft of kilowatt-level blower

A quenching and tempering, distortion-free technology, applied in heat treatment furnaces, heat treatment equipment, manufacturing tools, etc., can solve problems such as bending, cracking, production efficiency, etc., and achieve the effects of ensuring strength, uniform heating and cooling, and reducing distortion

Inactive Publication Date: 2016-08-24
SHANDONG IRAETA HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] How to solve problems such as bending, cracking and low production efficiency in the main shaft of the 40CrNiMoA fan is the purpose of the present invention

Method used

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  • Non-deformation thermal refining process of main shaft of kilowatt-level blower
  • Non-deformation thermal refining process of main shaft of kilowatt-level blower
  • Non-deformation thermal refining process of main shaft of kilowatt-level blower

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Embodiment １

[0030] A kind of non-distortion quenching and tempering treatment process for the spindle of a kilowatt-level fan of the present invention uses special tooling to charge the spindle of the fan. figure 1 It can be seen that the special tooling includes a bottom support plate 6, an intermediate spacer plate 2, and an upper hoisting ring 1. The bottom support plate 6, the middle spacer plate 2, and the upper hoisting ring 1 are connected in series with the column 3. A set of through holes 4 is set on the plate 2 , and a set of vertical plates 5 are set on the bottom supporting plate 6 . The set of through holes 4 is provided with at least two, the diameter of which is larger than that of the main shaft 7, and they are evenly distributed on the middle spacer disc 2. There will be a gap between the set of vertical plates 5, and its length cannot exceed the bottom support plate 6.

[0031] After forging, the main shaft of the fan is normalized and tempered, and then controlled coo...

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Abstract

The invention discloses a non-deformation thermal refining process of a main shaft of a kilowatt-level blower. The process is characterized in that a special tool is utilized to effectively avoid deformation which probably occurs in the thermal refining; meanwhile, a controlled-cooling measure is carried out in the quenching process, thus the quenching temperature and the final cooling temperature can be controlled on the premise that the thermal refining quality of the main shaft of the blower is ensured, and accordingly, the thermal stress and the structural stress of the main shaft of the blower in the quenching process can be effectively reduced, and as a result, the deformation can be minimized, and the strength, plasticity and toughness can meet the technological requirements.

Description

technical field [0001] The invention relates to the technical field of processing the main shaft of a kilowatt fan, in particular to a non-distortion quenching and tempering process for a main shaft of a kilowatt fan. Background technique [0002] As a kind of clean energy, wind power is being applied more and more widely. As an important part of the wind turbine, the quenching and tempering treatment of the fan shaft plays an important role in ensuring the normal operation of the wind turbine and the service life of the fan shaft. [0003] How to solve the problems of bending, cracking and low production efficiency in the main shaft of the 40CrNiMoA fan is the purpose of the present invention. Contents of the invention [0004] The object of the present invention is to provide a distortion-free quenching and tempering treatment process for the main shaft of a kilowatt-class fan in view of the above-mentioned defects. In the present invention, special tooling is used to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/28C21D1/25C21D1/28
CPCC21D9/28C21D1/25C21D1/28C21D9/0025
Inventor 赵丽美任秀凤尚贺军王聪银伟
Owner SHANDONG IRAETA HEAVY IND
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