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Optical fiber laser remanufacturing process of positive-addendum-modification large-modulus gear of ball mill

A fiber laser and positive displacement technology, applied in manufacturing tools, laser welding equipment, metal material coating technology, etc., can solve problems such as abrasive wear, local fracture, adhesive wear, etc.

Active Publication Date: 2014-07-09
SUZHOU TIANHONG LASER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a transmission part of a ball mill, it is affected by abrasives, cyclic stress, and corrosion during use. The failure modes include abrasive wear, fatigue wear, excessive plastic deformation, adhesive wear, and corrosion wear. Long-term use leads to dimensional tolerance, wear grooves, Phenomena such as local fracture, leading to gear failure
Conventionally used remanufacturing technologies such as surface surfacing and surface ion cladding technology, due to defects such as low bonding strength, high porosity, coarse structure, and large heat-affected zone, after remanufacturing, the gears peel off during use, have poor wear resistance and The service life is short, it is difficult to meet the needs of actual use

Method used

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Embodiment Construction

[0015] The preferred embodiments of the present invention are described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0016] Embodiment of the invention:

[0017] A ball mill positive displacement large modulus gear fiber laser remanufacturing process, comprising the following steps:

[0018] Step 1: Determine the cladding layer material, design Fe-Cr alloy powder, design the strengthening phase and toughness phase of the cladding layer material to meet the requirements of wear resistance and corrosion resistance, and select an alloy powder with a thermal expansion coefficient similar to that of the gear base material. Among them; the 40Cr matrix alloy has an average linear expansion coefficient of 12.3×10 at a temperature of 20 to 400°C. -6 / ℃,

[0019] The composition and mass fraction of the alloy powder a...

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Abstract

The invention discloses an optical fiber laser remanufacturing process of a positive-addendum-modification large-modulus gear of a ball mill. The optical fiber laser remanufacturing process includes adopting alloy powder to design surface layer performance, using a six-axis robot to program to generate a processing program, and adopting optical fiber laser cladding technology and large-modulus gear processing technology to repair a worn gear. By the above mode, corrosion resistance and wear resistance of the gear are improved, and service life of the gear is prolonged.

Description

technical field [0001] The invention relates to the technical field of gear remanufacturing, in particular to a ball mill positive displacement large modulus gear fiber laser remanufacturing process. Background technique [0002] In the prior art, the manufacturing process of positive displacement large modulus gears (tooth height 50mm, addendum diameter 600mm, tooth width 450, modulus 22, number of teeth 19, length 2500mm) used in ball mills is medium carbon alloy steel 40Cr after casting, milling, stress relief annealing, surface quenching. As a transmission part of a ball mill, it is affected by abrasives, cyclic stress, and corrosion during use. The failure modes include abrasive wear, fatigue wear, excessive plastic deformation, adhesive wear, and corrosion wear. Long-term use leads to dimensional tolerance, wear grooves, Partial fracture and other phenomena lead to gear failure. Conventionally used remanufacturing technologies such as surface surfacing and surface io...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P6/00C23C24/10B23K26/34
CPCB23P6/00C23C24/10C23C24/103
Inventor 金朝龙颜瑞峰
Owner SUZHOU TIANHONG LASER
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