CN104672889A - Carbon fiber reinforced nylon composite, preparation method thereof and motorcycle water cooled engine - Google Patents
Carbon fiber reinforced nylon composite, preparation method thereof and motorcycle water cooled engine Download PDFInfo
- Publication number
- CN104672889A CN104672889A CN201510102334.4A CN201510102334A CN104672889A CN 104672889 A CN104672889 A CN 104672889A CN 201510102334 A CN201510102334 A CN 201510102334A CN 104672889 A CN104672889 A CN 104672889A
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- China
- Prior art keywords
- carbon fiber
- power wheel
- driving gear
- fiber reinforced
- oil pump
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
- F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
Abstract
The invention discloses a carbon fiber reinforced nylon composite which comprises materials in parts by weight as follows: 2-4 parts of carbon fiber powder, 28-32 parts of chopped carbon fiber, 6-10 parts of graphite, 54-64 parts of nylon particles and 0-2 parts of auxiliary additives. The carbon fiber reinforced nylon composite has excellent mechanical properties and good abrasion resistance. According to a preparation method of the carbon fiber reinforced nylon composite, the components are premixed, and injected into a mold by an injection molding machine for cooling forming in a molten state at the temperature of 300 DEG C, and the preparation method is simpler. The invention further discloses a motorcycle water cooled engine. A crankshaft, a driving shaft, an oil pump shaft and a water pump shaft are arranged in a casing of the motorcycle water cooled engine, wherein a first driving wheel is arranged on the crankshaft, a second driving wheel made of the carbon fiber reinforced nylon composite is arranged on the driving shaft, an oil pump driving gear is arranged on the oil pump shaft, a water pump driving gear is arranged on the water pump shaft; the first driving wheel, the oil pump driving gear, the water pump driving gear and the second driving wheel are meshed, so that the engine is lighter and more convenient, and the driving noise is reduced.
Description
Technical field
The present invention relates to engineering materials technical field, particularly relate to a kind of carbon fiber reinforced nylon matrix material and preparation method, cooling engine for motor cycle water.
Background technology
Existing carbon fiber reinforced nylon matrix material all only has a kind of strongthener, and enhancement function is single, and reinforced effects is not good; And the component frictional coefficient that this carbon fiber reinforced nylon matrix material makes is large, and wear resisting property is poor, and work-ing life is corresponding shorter; Moreover this carbon fiber reinforced nylon composite manufacturing technique is complicated, and cost is higher, is unfavorable for development and promotes.
Crankshaft drive structure many employings chain drive structure of existing cooling engine for motor cycle water, moves oil pump shaft, water pump shaft by crankshaft straight tape splicing, and then driving machine oil pump, pump working; In this chain drive structure, bent axle needs arrange two sprocket wheels, two sprocket wheels mainly adopt press-fit approach or the intrinsic sprocket wheel of bent axle, and two sprocket wheels are respectively by the oil pump sprocket wheel on oil pump chain, water pump chain-driving oil pump shaft and the water pump sprocket on water pump shaft.This chain-drive mechanism have employed two chain-drive mechanisms, takies bent axle axial space comparatively large, increases the volume of engine, and make engine heaviness, cost of manufacture high, and chaindriven noise weares and teares greatly, easily, work-ing life is shorter.
Summary of the invention
One object of the present invention is to provide a kind of excellent in mechanical performance, and frictional coefficient is low, and wear resistance is good, loading strength and breaking tenacity high, reliability promote carbon fiber reinforced nylon matrix material;
It is more simple that another object of the present invention is to provide one, and reduce die sinking difficulty, reduces the preparation method of the carbon fiber reinforced nylon matrix material of exemplar construction cycle;
Another object of the present invention is to provide a kind of cooling engine for motor cycle water, and it can reduce the volume of cooling engine for motor cycle water, makes engine more light, reduces transmission of crankshaft noise and engine cost of manufacture.
An object of the present invention is to realize like this:
A kind of carbon fiber reinforced nylon matrix material, this matrix material is made up of the material of following weight part: carbon fiber powder 2 ~ 4 parts, chopped carbon fiber 28 ~ 32 parts, powdered graphite 6 ~ 10 parts, 54 ~ 64 parts, nylon particle and supplementary additive 0 ~ 2 part.
Preferably, described carbon fiber powder diameter is 1.5 ~ 2.5 μm, and length is 3.5 ~ 4.5 μm.
Preferably, described chopped carbon fiber diameter is 1.5 ~ 2.5 μm, and length is 0.8 ~ 1.2mm.
The beneficial effect of carbon fiber reinforced nylon matrix material provided by the invention is:
First, both carbon fiber powder and chopped carbon fiber are introduced nylon based composites by this patent simultaneously, the good reinforced effects of chopped carbon fiber and effective filling effect of carbon fiber powder have been played simultaneously, prepared carbon fiber nylon composite material excellent performance, combine closely between fiber and nylon matrix, in matrix material, space is few, has tensile strength large, good stability, loading strength and the high advantage of breaking tenacity;
Second, carbon fiber powder and chopped carbon fiber composition composite strengthening skeleton, chopped carbon fiber can effectively be connected nylon matrix tissue, the filling of carbon fiber powder is widely distributed, for stress provides big area stress point, be conducive to dispersive stress, thus reach the collaborative object strengthened, the composite materials property that this patent obtains is good;
3rd, the multilayer atomic structure of carbon of graphite has self-lubricating solid feature, and this patent effectively reduces frictional coefficient because of adding of graphite, strengthens wear resistance, long service life;
4th, the dead meal that the carbon fiber powder of this patent can make full use of various carbon fiber product processes, and has saved carbon fiber resource, has reduced energy consumption and cost;
Another object of the present invention is achieved in that
The preparation method of carbon fiber reinforced nylon matrix material, after above-mentioned carbon fiber powder, chopped carbon fiber, graphite, nylon particle and supplementary additive pre-mixing, 300 DEG C of molten states, injects mold cools down by injection moulding machine shaping.
The beneficial effect of the preparation method of carbon fiber reinforced nylon matrix material provided by the invention is:
Owing to being employing injection molding process, this kind of material can the needs of different situations, and make different size, shape, on existing spare part mould basis, also directly can change injection moulding batching can produce, substantially reduce the difficulty of die sinking again, the reduction exemplar construction cycle; Preparation method is simple, is conducive to the development and the popularization that promote carbon-fibre composite.
Another object of the present invention is achieved in that
A kind of cooling engine for motor cycle water, the bent axle, transmission shaft, oil pump shaft, the water pump shaft that are parallel to each other is provided with in the housing of water-cooled engine, on described bent axle, circumference fixes the first power wheel, on described transmission shaft, circumference fixes the second power wheel, described second power wheel adopts above-mentioned carbon fiber reinforced nylon matrix material injection moulding, the fixing oil pump driving gear of circumference on described oil pump shaft, circumferential station pump driving gear on described water pump shaft, described first power wheel, oil pump driving gear, water pump driving gear all engage with the second power wheel.
Preferably, described oil pump driving gear, water pump driving gear all adopt the injection moulding of carbon fiber reinforced nylon matrix material.
Preferably, described first power wheel is sprocket wheel, and described second power wheel has the profile of tooth coordinated with the first power wheel, and has the profile of tooth coordinated with oil pump driving gear, water pump driving gear simultaneously.
Preferably, described first power wheel is steel material.
Preferably, described first power wheel, the second power wheel are gear.
The beneficial effect of cooling engine for motor cycle water provided by the invention is:
Adopt the second power wheel of carbon fiber reinforced nylon matrix material injection moulding, second power wheel directly engages with the first power wheel, oil pump driving gear, water pump driving gear, namely the deficiency overcoming the general nylon strength of materials and wear no resistance, turn avoid because using chain, steel chain sprocket structure and the weight that causes is too large and expensive shortcoming.The transmission engagement better effects if of engine, noise is little, overcome chain gear heaviness, take up room the shortcoming large, noise is large, cost is high, transmission rig of the present invention is less, take bent axle axial space less, reduce the volume of cooling engine for motor cycle water, make engine more light, reduce the cost of manufacture of noise and the engine produced in transmission process, longer service life.Adopt this structure can alleviate the weight of engine, reduce engine power loss.
Accompanying drawing explanation
Fig. 1 is the structural representation of cooling engine for motor cycle water of the present invention;
Fig. 2 is the perspective view of Fig. 1.
Reference numeral
In accompanying drawing, 1 is the first power wheel, and 2 is the second power wheel, 3 water pump driving gears, 4 oil pump driving gears, 5 bent axles, 6 transmission shafts, and 7 is oil pump shaft, and 8 is water pump shaft.
Embodiment
The embodiment of carbon fiber reinforced nylon matrix material: matrix material is by the material of following weight part table composed as follows: carbon fiber powder 2 ~ 4 parts, chopped carbon fiber 28 ~ 32 parts, powdered graphite 6 ~ 10 parts, 54 ~ 64 parts, nylon particle and supplementary additive 0 ~ 2 part.Described carbon fiber powder diameter is 2 μm, and length is 4 μm.Described chopped carbon fiber diameter is 2 μm, and length is 1mm.
This kind of material is made up of (referring to table one) carbon fiber, graphite, supplementary additive and nylon granule, combine closely between carbon fiber and nylon matrix, excellent in mechanical performance, frictional coefficient is low, wear resistance is good, loading strength and breaking tenacity high, reliability promote (performance perameter is in table two).
Table one material composition
| Composition | Unit | Reference value | Formula 1 | Formula 2 | Formula 3 |
| Carbon fiber powder | ％ | 2～4 | 3.5 | 3 | 2.5 |
| Chopped carbon fiber | ％ | 28～32 | 29.5 | 30 | 32 |
| Graphite | ％ | 6～10 | 8 | 10 | 6 |
| Nylon particle | ％ | 54～64 | 57 | 56 | 59.5 |
| Supplementary additive | ％ | 0～2 | 2 | 1 | 0 |
Table two according to international standard test condition, each carbon fiber reinforced nylon material gear formula correlation parameter
A kind of embodiment of the preparation method of carbon fiber reinforced nylon matrix material, after carbon fiber powder 2 ~ 4wt%, chopped carbon fiber 28 ~ 32wt%, graphite 6 ~ 10wt%, supplementary additive 0 ~ 2wt% and nylon particle 54 ~ 64wt% pre-mixing, 300 DEG C of molten states, inject mold cools down by injection moulding machine shaping.
Owing to being adopt injection molding process, this kind of material can the needs of different situations, make different size, shape.Also on existing spare part mould basis, directly can change injection moulding batching can produce; Substantially reduce the difficulty of die sinking again, the reduction exemplar construction cycle.
See Fig. 1, Fig. 2, for a kind of embodiment of cooling engine for motor cycle water, the bent axle 5, transmission shaft 6, oil pump shaft 7, the water pump shaft 8 that are parallel to each other is provided with in the housing of water-cooled engine, on described bent axle 5, circumference fixes the first power wheel 1, on described transmission shaft 6, circumference fixes the second power wheel 2, the fixing oil pump driving gear 4 of circumference on described oil pump shaft 7, circumferential station pump driving gear 3 on described water pump shaft 8.Described first power wheel 1 is steel material, is convenient to bent axle 5 one-body molded, and can ensures the intensity of the first power wheel 1.In the present embodiment, the first power wheel 1 is one-body molded on bent axle 5, and the second power wheel 2 is connected with transmission shaft 6 key, and oil pump driving gear 4 is connected with oil pump shaft 7 key, and water pump driving gear 3 is connected with water pump shaft 8 key.Described first power wheel 1, oil pump driving gear 4, water pump driving gear 3 all engage with the second power wheel 2, by the transmission of power of bent axle 5 to oil pump shaft 7, water pump shaft 8.
During work, crank 5 rotates, and the first power wheel 1 on it drives the second power wheel 2 be arranged on transmission shaft 6 to rotate.Water pump driving gear 3 is mounted on water pump shaft 8, and engages with the second power wheel 2.Oil pump driving gear 4 is arranged on oil pump shaft 7, and engages with the second power wheel 2.First power wheel 1 drives water pump driving gear 3 and oil pump driving gear 4 to rotate by the second power wheel 2, thus drives water pump and lubricating oil pump.
Described second power wheel 2, oil pump driving gear 4, water pump driving gear 3 all adopt carbon fiber reinforced nylon material injection shaping.Common nylon material wear resistance is poor, it is poor to start the shock resistance of moment, can only for the little small displacement motorcycle engine of moment; Motorcycle large-duty engine due to the pump water yield of water pump and the pump oil mass of oil pump all larger, the moment of water pump gear and oil pump gear transmission also will increase accordingly, when second power wheel 2 stressed large while engaging with steel-tooth, nylon tooth (especially) simultaneously, the intensity of common nylon material and wear resistance degradation, easily cause the fault such as tooth surface abrasion, broken teeth, cause pump water, pump shortage of oil, cause the phenomena of the failure such as engine scuffing.
This crankshaft drive structure is applicable to motorcycle large-duty engine, because the second power wheel 2 of this crankshaft drive structure need coordinate the nylon gear of the steel-tooth of the first power wheel and water pump driving gear, oil pump driving gear simultaneously, require higher to the intensity of the second power wheel and wear resistance (when especially engaging steel-tooth).In transmission mechanism of the present invention, chain gear is improved to geartransmission, uses the second power wheel of carbon fiber reinforced nylon material, adopt this structure can alleviate the weight of engine, reduce engine power loss; Part is made gear structure, adopt gear forms transmission engagement better effects if, noise is little, the deficiency being namely filled with the general nylon strength of materials and wearing no resistance, and turn avoid because using chain, steel chain sprocket structure and the weight that causes is too large and expensive shortcoming.
Described oil pump driving gear 4, water pump driving gear 3 all adopt carbon fiber reinforced nylon material injection shaping, make the excellent in mechanical performance of oil pump driving gear 4, water pump driving gear 3, frictional coefficient is low, wear resistance is good, loading strength and breaking tenacity high, reliability promotes, and adds oil pump driving gear 4, the intensity of water pump driving gear 3 and work-ing life.
Described first power wheel 1 is sprocket wheel, so that direct machine-shaping on bent axle.Described second power wheel 2 has the profile of tooth coordinated with the first power wheel 1, and there is the profile of tooth coordinated with oil pump driving gear 4, water pump driving gear 3 simultaneously, the second power wheel 2 can be engaged with the first power wheel 1, oil pump driving gear 4, water pump driving gear 3 simultaneously.
The present invention is not only confined to above-described embodiment, and in the present embodiment, the first power wheel 1, second power wheel 2 also can be gear.In the present embodiment, the first power wheel 1 is connected with bent axle 5 key, the first power wheel 1 and bent axle 5 machine-shaping respectively.
What finally illustrate is, above preferred embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although by above preferred embodiment to invention has been detailed description, but those skilled in the art are to be understood that, various change can be made to it in the form and details, and not depart from claims of the present invention limited range.
Claims (9)
1. a carbon fiber reinforced nylon matrix material, is characterized in that this matrix material is made up of the material of following weight part: carbon fiber powder 2 ~ 4 parts, chopped carbon fiber 28 ~ 32 parts, powdered graphite 6 ~ 10 parts, 54 ~ 64 parts, nylon particle and supplementary additive 0 ~ 2 part.
2. carbon fiber reinforced nylon matrix material according to claim 1, is characterized in that: described carbon fiber powder diameter is 1.5 ~ 2.5 μm, and length is 3.5 ~ 4.5 μm.
3. carbon fiber reinforced nylon matrix material according to claim 1, is characterized in that: described chopped carbon fiber diameter is 1.5 ~ 2.5 μm, and length is 0.8 ~ 1.2mm.
4. the preparation method of carbon fiber reinforced nylon matrix material according to claim 1, it is characterized in that: after carbon fiber powder, chopped carbon fiber, graphite, nylon particle and supplementary additive pre-mixing, 300 DEG C of molten states, inject mold cools down by injection moulding machine shaping.
5. a cooling engine for motor cycle water, it is characterized in that, the bent axle (5) be parallel to each other is provided with in the housing of water-cooled engine, transmission shaft (6), oil pump shaft (7), water pump shaft (8), the upper circumference of described bent axle (5) fixes the first power wheel (1), the upper circumference of described transmission shaft (6) fixes the second power wheel (2), described second power wheel (2) adopts the injection moulding of carbon fiber reinforced nylon matrix material, the fixing oil pump driving gear (4) of the upper circumference of described oil pump shaft (7), the upper circumferential station pump driving gear (3) of described water pump shaft (8), described first power wheel (1), oil pump driving gear (4), water pump driving gear (3) all engages with the second power wheel (2).
6. a kind of cooling engine for motor cycle water according to claim 5, is characterized in that: described oil pump driving gear (4), water pump driving gear (3) all adopt the injection moulding of carbon fiber reinforced nylon matrix material.
7. a kind of cooling engine for motor cycle water according to claim 5, it is characterized in that: described first power wheel (1) is sprocket wheel, described second power wheel (2) has the profile of tooth coordinated with the first power wheel (1), and has the profile of tooth coordinated with oil pump driving gear (4), water pump driving gear (3) simultaneously.
8. a kind of cooling engine for motor cycle water according to claim 5, is characterized in that: described first power wheel (1) is steel material.
9. a kind of cooling engine for motor cycle water according to claim 5, is characterized in that: described first power wheel (1), the second power wheel (2) are gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510102334.4A CN104672889A (en) | 2015-03-09 | 2015-03-09 | Carbon fiber reinforced nylon composite, preparation method thereof and motorcycle water cooled engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510102334.4A CN104672889A (en) | 2015-03-09 | 2015-03-09 | Carbon fiber reinforced nylon composite, preparation method thereof and motorcycle water cooled engine |
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| CN104672889A true CN104672889A (en) | 2015-06-03 |
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| CN201510102334.4A Pending CN104672889A (en) | 2015-03-09 | 2015-03-09 | Carbon fiber reinforced nylon composite, preparation method thereof and motorcycle water cooled engine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110430985A (en) * | 2017-03-28 | 2019-11-08 | 日本电产株式会社 | Plastic gear and gear mechanism |
| CN114381113A (en) * | 2021-12-30 | 2022-04-22 | 昆山科运新型工程材料科技有限公司 | Preparation method of self-lubricating high-wear-resistance fluorine-containing polymer alloy |
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| CN204511658U (en) * | 2015-03-09 | 2015-07-29 | 重庆高金实业有限公司 | The crankshaft drive structure of cooling engine for motor cycle water |
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2015
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| CN102786797B (en) * | 2012-08-10 | 2014-10-01 | 武汉理工大学 | Multiscale carbon fiber nylon composite material and preparation method thereof |
| CN103396611A (en) * | 2013-07-30 | 2013-11-20 | 暨南大学 | Low-water-absorptivity heat-conducting wear-resistant polymer alloy, and preparation method and application thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110430985A (en) * | 2017-03-28 | 2019-11-08 | 日本电产株式会社 | Plastic gear and gear mechanism |
| CN114381113A (en) * | 2021-12-30 | 2022-04-22 | 昆山科运新型工程材料科技有限公司 | Preparation method of self-lubricating high-wear-resistance fluorine-containing polymer alloy |
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