CN102909873A - Carbon/carbon composite rubbing-resistant gear - Google Patents
Carbon/carbon composite rubbing-resistant gear Download PDFInfo
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- CN102909873A CN102909873A CN 201110221772 CN201110221772A CN102909873A CN 102909873 A CN102909873 A CN 102909873A CN 201110221772 CN201110221772 CN 201110221772 CN 201110221772 A CN201110221772 A CN 201110221772A CN 102909873 A CN102909873 A CN 102909873A
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- Gears, Cams (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
A carbon/carbon composite rubbing-resistant gear comprises a gear ring and a core sleeve. A carbon fiber reinforced composite is subjected to integral injection molding to form the carbon/carbon composite rubbing-resistant gear, and a plurality of holes for reducing deformation are uniformly arranged between the gear ring and the core sleeve. Compared with the prior art, the carbon/carbon composite rubbing-resistant gear has the advantages that the gear made of the carbon/carbon composite is high in specific strength and specific modulus, and dimensional change caused by the deformation is reduced by the holes uniformly arranged between the gear ring and the core sleeve, and the carbon/carbon composite rubbing-resistant gear is excellent in mechanical performance, electric performance, chemical performance, heat resistance, abrasion resistance and dimensional stability.
Description
Technical field the present invention relates to a kind of gear, particularly a kind of carbon/carbon composite rub resistance gear.
Background technology is along with plastics industry develops rapidly, and the gear of plastics and driving member have been substituted the driving members such as gear of metal in a lot of occasions, and is applied to more and more widely motion and powerdriven occasion.Gear and the driving member of plastics have low cost of manufacture, and be lightweight, noise is low, resist chemical, the advantages such as self-lubricating transmission.But the shortcomings such as it is low also to have elastic modelling quantity simultaneously, and mechanical strength is low, and heat conductivity is poor, and thermal coefficient of expansion is large, these have limited the use of working of plastics in top load, high-speed occasion.
Summary of the invention is in order to overcome above-mentioned deficiency, the purpose of this invention is to provide a kind of transmission gear made of carbon fiber reinforced composites with outstanding wear-resisting, corrosion resistance and dimensional stability.
The technical problem to be solved in the present invention is achieved through the following technical solutions, carbon/carbon composite rub resistance gear comprises gear ring and core retainer plate, adopt the moulding of carbon fibre reinforced composite integral molded plastic, between gear ring and core retainer plate, be evenly arranged the hole that several reduce distortion.
Technical scheme of the present invention: a. introduces the chopped equipment of fiber with continuous carbon fibre bundle by thread supplying machine and cuts, and according to the fiber speed of service, sets Cutting Length and is controlled at 5-7mm.
B. prepare resin, need to fully stir on mixer, mixing time is no less than 5 minutes.The resin that stirs can be poured resin storage tank into after need to filtering through 80 purpose mesh screens.
C. resin and the chopped silk of carbon fiber are evenly mixed in 30: 70 ratio.
D. mixed resin and the chopped silk of carbon fiber are injected mould.
E. progressively mould is heated, pressurizeed.In this process, to strictly control gathering way of temperature and pressure, the gas of composite material inside can be discharged gradually and can not stay shaped article inside.Simultaneously, because resin reaction can produce internal stress, can cause the product cracking such as fast heating, pressurization.
F. the resin content made is dropped in the high temperature furnace of inert gas shielding at 30% carbon fibre composite gear, with resin sintering again, reduce the resin content of product.In this process, must guarantee after inert gas fully is covered with high temperature furnace product to be heated.
The present invention compared with prior art adopts carbon/carbon composite to make gear, and specific strength is high, specific modulus is high, by evenly reducing the change in size that distortion brings in the hole of setting at gear ring and core retainer plate.Have excellent mechanical performance, electrical property, chemical property and heat resistance, wearability, dimensional stability.
Description of drawings
Fig. 1 is structural representation sketch of the present invention;
The specific embodiment
A kind of carbon/carbon composite rub resistance gear comprises gear ring 1 and core retainer plate 2, is evenly arranged the hole 3 that several reduce distortion between gear ring 1 and core retainer plate 2.The hole 3 of described minimizing distortion be scallop hole, a plurality of greater than arranging by gear size, in the present embodiment symmetry be provided with six, be shaft orientation reinforcing rib 4 between the adjacent scallop hole, be provided with radial reinforced rib at the middle part of each scallop hole.The hole 3 of described minimizing distortion be manhole, a plurality of greater than arranging by gear size, and symmetry is provided with eight in the present embodiment.Workflow of the present invention is as follows: a. introduces the chopped equipment of fiber with continuous carbon fibre bundle by thread supplying machine and cuts, and according to the fiber speed of service, sets Cutting Length and is controlled at 5-7mm.
B. prepare resin, need to fully stir on mixer, mixing time is no less than 5 minutes.The resin that stirs can be poured resin storage tank into after need to filtering through 80 purpose mesh screens.
C. resin and the chopped silk of carbon fiber are evenly mixed in 30: 70 ratio.
D. mixed resin and the chopped silk of carbon fiber are injected mould.
E. progressively mould is heated, pressurizeed.In this process, to strictly control gathering way of temperature and pressure, the gas of composite material inside can be discharged gradually and can not stay shaped article inside.Simultaneously, because resin reaction can produce internal stress, can cause the product cracking such as fast heating, pressurization.
F. the resin content made is dropped in the high temperature furnace of inert gas shielding at 30% carbon fibre composite gear, with resin sintering again, reduce the resin content of product.In this process, must guarantee after inert gas fully is covered with high temperature furnace product to be heated.
Claims (1)
1. carbon/carbon composite rub resistance gear comprises gear ring and core retainer plate, adopts the moulding of carbon fibre reinforced composite integral molded plastic, is evenly arranged the hole that several reduce distortion between gear ring and core retainer plate; It is characterized in that: a. introduces the chopped equipment of fiber with continuous carbon fibre bundle by thread supplying machine and cuts, and according to the fiber speed of service, sets Cutting Length and is controlled at 5-7mm;
B. prepare resin, need to fully stir on mixer, mixing time is no less than 5 minutes, and the resin that stirs can be poured resin storage tank into after need to filtering through 80 purpose mesh screens;
C. resin and the chopped silk of carbon fiber are evenly mixed in 30: 70 ratio;
D. mixed resin and the chopped silk of carbon fiber are injected mould;
E. progressively mould is heated, pressurizeed.In this process, to strictly control gathering way of temperature and pressure, the gas that makes composite material inside can be discharged gradually and can not stayed shaped article inside, simultaneously, because resin reaction can produce internal stress, can cause the product cracking such as fast heating, pressurization;
F. the resin content made is dropped in the high temperature furnace of inert gas shielding at 30% carbon fibre composite gear, with resin sintering again, reduce the resin content of product, in this process, must guarantee after inert gas fully is covered with high temperature furnace product to be heated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110221772 CN102909873A (en) | 2011-08-04 | 2011-08-04 | Carbon/carbon composite rubbing-resistant gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110221772 CN102909873A (en) | 2011-08-04 | 2011-08-04 | Carbon/carbon composite rubbing-resistant gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102909873A true CN102909873A (en) | 2013-02-06 |
Family
ID=47608557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110221772 Pending CN102909873A (en) | 2011-08-04 | 2011-08-04 | Carbon/carbon composite rubbing-resistant gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102909873A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148193A (en) * | 2013-03-21 | 2013-06-12 | 江苏保捷锻压有限公司 | Long-life gearwheel |
| CN110430985A (en) * | 2017-03-28 | 2019-11-08 | 日本电产株式会社 | Plastic gear and gear mechanism |
-
2011
- 2011-08-04 CN CN 201110221772 patent/CN102909873A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148193A (en) * | 2013-03-21 | 2013-06-12 | 江苏保捷锻压有限公司 | Long-life gearwheel |
| CN110430985A (en) * | 2017-03-28 | 2019-11-08 | 日本电产株式会社 | Plastic gear and gear mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130206 |