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Composite gear and gear shaft

A composite gear and gear shaft technology, applied in the directions of shafts and bearings, belts/chains/gears, shafts, etc., can solve the problems of mechanical properties of plastic gears, poor dimensional stability, wear resistance and heat resistance, to avoid mechanical damage, Guarantee the effect of complete outer layer and good wear resistance

Inactive Publication Date: 2014-04-16
JIKAI HEBEI MECHATRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to the advantages of light weight and low noise, plastic gears are more and more widely used. However, the existing plastic gears are generally injection molded with the same material, which cannot change the mechanical properties and dimensional stability of plastic gears. , many disadvantages of poor wear and heat resistance

Method used

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  • Composite gear and gear shaft
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  • Composite gear and gear shaft

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] The specific components contained in the fiber-reinforced polyamide composite material and the mass content of each component are: polyamide resin: 54.8%, polyphenylene ether: 8.2%, modified epoxy resin: 0.5%, carbon fiber: 22%, glass fiber : 8%, molybdenum disulfide: 2%, polytetrafluoroethylene: 1.5%, silicone resin elastomer: 1.5%, antioxidant: 0.5%, coupling agent: 1%.

[0064] The components contained in the wear-resistant composition and the mass content of each component are: modified epoxy resin: 63%, polyamide curing agent: 27%, carboxyl-terminated NBR: 7%, carbon nanotube: 2%, Nanoscale molybdenum disulfide: 1%.

[0065] (1) Preparation of the gear body

[0066] I) Treat the carbon fiber: ① Soak the pretreated carbon fiber in nitric acid with a mass fraction of 50% for oxidation, take it out after 1 hour, and dry it with a centrifuge; ② Rinse it with deionized water until the carbon fiber itself no longer shows acidity ; ③ Bake at 100-110°C for 4 hours and co...

Embodiment 2

[0080] The specific components contained in the fiber reinforced polyamide composite material and the mass content of each component are: polyamide resin: 30%, polyphenylene sulfide: 3.5%, modified epoxy resin: 0.1%, carbon fiber: 50%, metal Fiber: 0.1%, molybdenum disulfide: 10%, polytetrafluoroethylene: 1%, silicone resin elastomer: 5%, antioxidant: 0.1%, coupling agent: 0.2%.

[0081] The components contained in the wear-resistant composition and the mass content of each component are: modified epoxy resin: 50%, polyamide curing agent: 15%, carboxyl-terminated nitrile rubber: 27%, carbon nanotubes: 5%, Nano-scale molybdenum disulfide: 2%, polytetrafluoroethylene: 1%.

[0082] (1) Preparation of the gear body

[0083] I) Treat the carbon fiber: ① burn the carbon fiber in a muffle furnace at 600°C for 40 minutes; ② immerse the carbon fiber cooled to room temperature in a nitric acid solution (the volume ratio of concentrated nitric acid to water is 4:1) for 3 hours, take it ...

Embodiment 3

[0094] The specific components contained in fiber-reinforced polyamide composite materials and the mass content of each component are: polyamide resin: 65%, polyphenylene sulfide: 3%, polyphenylene ether: 7.5%, modified epoxy resin: 5% , carbon fiber: 5%, glass fiber: 0.5%, molybdenum disulfide: 1%, polytetrafluoroethylene: 6.9%, silicone resin elastomer: 0.1%, antioxidant: 1%, coupling agent: 5%.

[0095] The components contained in the wear-resistant composition and the mass content of each component are: polyether oligomer: 60%, isocyanate oligomer: 20%, carboxyl-terminated nitrile rubber: 15%, carbon nanotube: 3%, Nanoscale molybdenum disulfide: 2%.

[0096] (1) Preparation of the gear body

[0097] I) Treatment of carbon fiber: ①burn the carbon fiber in a muffle furnace at 400°C for 50min; ②immerse the carbon fiber cooled to room temperature in nitric acid solution (the volume ratio of concentrated nitric acid to water is 5:1) for 2.5h, take it out, Press dry, rinse wit...

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Abstract

The invention provides a composite gear and a gear shaft comprising the combined gear. The composite gear comprises a gear body and an anti-abrasion layer. The gear body is made of fiber reinforcement polyamide composite material in an injection molding mode, and anti-abrasion composition is arranged on the outer surface of the gear body to form the anti-abrasion layer in an injection molding, or spraying or blade coating mode. A double-element structure comprising the gear body and the anti-abrasion layer is adopted for the composite gear, the gear body is made of the fiber reinforcement polyamide composite material, and therefore needed high mechanical strength, a small hot linear expansion coefficient and good flame retardant and anti-static capacity are provided for the anti-abrasion layer. The anti-abrasion layer is made of the anti-abrasion composition. The purpose is that mechanical strength of the composite material is provided, more importantly, the anti-abrasion performance is improved, the friction coefficient of the composite gear is low, and the anti-abrasion performance and self-lubrication performance are good. The reasonable material and reasonable technology enable the gear body and the anti-abrasion layer to be excellent in adhesive force and enable the composite gear to have good comprehensive performance.

Description

technical field [0001] The invention relates to the field of gear processing, more specifically, to a high-strength, wear-resistant composite gear and a gear shaft containing the composite gear. Background technique [0002] Due to the advantages of light weight and low noise, plastic gears are more and more widely used. However, the existing plastic gears are generally injection molded with the same material, which cannot change the mechanical properties and dimensional stability of plastic gears. , wear and heat resistance are poor in many disadvantages. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems existing in the prior art. [0004] Therefore, the purpose of the first aspect of the present invention is to provide a composite gear with good mechanical strength, good dimensional stability and good wear resistance. [0005] The object of the second aspect of the present invention is to provide a gear shaft ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H55/06F16H55/17F16C3/02C08L77/00C08L81/02C08L71/12C08L63/00C08K13/06C08K9/02C08K7/06C08K7/14C08K3/30C08K7/04C09D163/00C09D175/04C09D7/12
CPCC08L77/00C08L2201/02C08L2201/04C08L2205/035F16H55/06F16H55/17F16H57/0018C08L71/12C08L63/00C08L27/18C08L83/04C08K13/06C08K9/02C08K9/04C08K7/06C08K7/14C08L81/02
Inventor 刘鑫勤高贵军郝行章崔书奇李国壁
Owner JIKAI HEBEI MECHATRONICS TECH CO LTD
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