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Slewing bearing gear tooth surface with wear-resistant coating and preparation method thereof

A technology of slewing bearing and wear-resistant coating, applied in coatings, components with teeth, metal material coating process, etc., can solve the problems of reducing equipment service life, wear of gear tooth surfaces, product scrapping and failure, etc. Achieve the effect of preventing shedding, narrow particle size distribution, and good chemical matching

Active Publication Date: 2022-02-25
XUZHOU WANDA SLEWING BEARING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under poor working conditions, long-term service will lead to tooth surface wear and tooth root fracture, which will directly affect the function of the product and reduce the service life of the equipment. In severe cases, the product will be scrapped and invalid
[0004] In order to solve the problem of product failure caused by the wear of the tooth surface of the slewing bearing, the present invention provides a tooth surface of the tooth surface of the slewing bearing with a wear-resistant coating and its preparation method. The tooth surface of the tooth is provided with a solid continuous film to protect the purpose of the gear

Method used

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  • Slewing bearing gear tooth surface with wear-resistant coating and preparation method thereof
  • Slewing bearing gear tooth surface with wear-resistant coating and preparation method thereof
  • Slewing bearing gear tooth surface with wear-resistant coating and preparation method thereof

Examples

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Effect test

Embodiment 1

[0042] A tooth surface of a slewing support gear with a wear-resistant coating and a preparation method thereof, the preparation comprising the following steps:

[0043] 1) Carry out laser cladding of pure copper powder on the gear tooth surface of the slewing bearing. The laser cladding process is as follows: the wavelength is 1064nm, the protective gas is set to argon, and the flow rate is 12L / min, CO 2 The laser power is 2kW, the scanning rate is 6mm / s, and the spot diameter is 4mm; introduce and press an ultrasonic device at a distance of 50cm from the cladding area of ​​the gear tooth surface, apply a pressure of 0.8MPa, adjust the ultrasonic vibration power to 800W, and use a single channel welding. After cladding, the coating was cooled naturally at room temperature. A transition layer was formed with a thickness of 15 μm.

[0044] 2) The preparation process parameters of the multi-component two-dimensional material are as follows: Weigh the cobalt powder, carbon powd...

Embodiment 2

[0052] A tooth surface of a slewing support gear with a wear-resistant coating and a preparation method thereof, the preparation comprising the following steps:

[0053] 1) Carry out laser cladding of pure copper powder on the gear tooth surface of the slewing bearing. The laser cladding process is as follows: the wavelength is 1064nm, the protective gas is set to argon, and the flow rate is 13L / min, CO 2 The laser power is 2.5kW, the scanning rate is 5mm / s, and the spot diameter is 4mm; an ultrasonic device is introduced and pressed on the gear tooth surface 40cm away from the cladding area, the applied pressure is 0.5MPa, and the ultrasonic vibration power is adjusted to 700W. Road welding. After cladding, the coating was cooled naturally at room temperature. A transition layer was formed with a thickness of 12 μm.

[0054] 2) The preparation process parameters of the multi-component two-dimensional material are as follows: weigh cobalt powder, carbon powder, boron powder,...

Embodiment 3

[0061] A tooth surface of a slewing support gear with a wear-resistant coating and a preparation method thereof, the preparation comprising the following steps:

[0062] 1) Carry out laser cladding of pure copper powder on the gear tooth surface of the slewing bearing. The laser cladding treatment process is as follows: the wavelength is 1064nm, the protective gas is set to argon, and the flow rate is 13L / min, CO 2 The laser power is 3kW, the scanning rate is 8mm / s, and the spot diameter is 4mm; the ultrasonic equipment is introduced and pressed on the gear tooth surface 70cm away from the cladding area, the applied pressure is 0.7MPa, and the ultrasonic vibration power is adjusted to 900W. welding. After cladding, the coating was cooled naturally at room temperature. A transition layer was formed with a thickness of 20 μm.

[0063]2) The preparation process parameters of the multi-component two-dimensional material are as follows: weigh cobalt powder, carbon powder, boron p...

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Abstract

The invention discloses a slewing bearing gear tooth surface with the wear-resistant coating and a preparation method thereof; the surface comprises a gear tooth surface body, a pure metal transition layer and a high-performance wear-resistant layer are sequentially arranged on the gear tooth surface body outwards, and the transition layer is a copper layer and covers the gear tooth surface body through laser cladding; the wear-resistant layer is formed by ferrochrome alloy, ferronickel, ferrosilicon, chromium carbide, titanium-aluminum-vanadium alloy, molybdenum trioxide, a multi-element two-dimensional material, graphene and aluminum powder through ball milling, high-temperature vacuum sintering, ultrafine grinding and laser cladding, the pure metal transition layer and composite metal powder are arranged on the tooth surface of the gear tooth in a laser cladding mode by adopting a double-coating structure. The slewing bearing gear tooth surface has good physical properties and mechanical properties, can effectively reduce the friction coefficient, is compact in structure, high in hardness, strong in wear resistance and good in stability, and significantly solves the problems of frequent shutdown maintenance and the like caused by long-time wear of the gear tooth surface, so that an excellent protection effect on the gear tooth surface is achieved. The preparation technical parameters provided by the invention are easy to control; The preparation process is simple and convenient.

Description

technical field [0001] The invention belongs to the technical field of coating materials and preparation thereof, in particular to a wear-resistant material applied to tooth surfaces of slewing bearings and a preparation method thereof, and belongs to the fields of surface engineering and material science. Background technique [0002] The slewing ring, also known as the turntable support, is a new type of machine component developed with the gradual improvement of the level of mechanized production in the world in the past 40 years. It is called "the joint of the machine" because it can bear larger shafts at the same time Direction, radial load and overturning moment, are widely used in large hoisting machinery, medical, navigation, military and new energy and other fields. It consists of mounting holes, internal and external gears, lubricating oil holes, sealing devices and rolling elements, which determine its complex manufacturing process, harsh processing conditions, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10B22F9/04B22F3/10B22F1/065F16H55/06F16H55/17
CPCC23C24/106B22F9/04B22F3/1007C23C24/103F16H55/06F16H55/17B22F2009/043Y02P10/25
Inventor 董强金开瑞
Owner XUZHOU WANDA SLEWING BEARING