CN108194616A - A kind of crankshaft chain wheel of automobile engine - Google Patents
A kind of crankshaft chain wheel of automobile engine Download PDFInfo
- Publication number
- CN108194616A CN108194616A CN201810170357.2A CN201810170357A CN108194616A CN 108194616 A CN108194616 A CN 108194616A CN 201810170357 A CN201810170357 A CN 201810170357A CN 108194616 A CN108194616 A CN 108194616A
- Authority
- CN
- China
- Prior art keywords
- fluted disc
- sprocket
- crankshaft
- chain wheel
- automobile engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004663 powder metallurgy Methods 0.000 claims abstract description 4
- 238000005728 strengthening Methods 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/30—Chain-wheels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/06—Use of materials; Use of treatments of toothed members or worms to affect their intrinsic material properties
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Gears, Cams (AREA)
Abstract
A kind of crankshaft chain wheel of automobile engine disclosed by the invention, include crankshaft sprocket ontology, crankshaft sprocket ontology is provided centrally with assembling the pilot hole being axially adapted to, crankshaft sprocket ontology is the integral structure of powder metallurgy forming, crankshaft sprocket ontology is provided with timing marks hole, the first fluted disc and the second fluted disc are formed on crankshaft sprocket ontology, the periphery of first fluted disc forms the first sprocket, the periphery of second fluted disc forms the second sprocket, it is formed between first fluted disc and the second fluted disc fluted, the width of first fluted disc is more than the width of second fluted disc, the lightening grooves of weight difference between the first fluted disc and the second fluted disc can be offset by being formed on the outside of first fluted disc；The surface hardening of first sprocket and the second sprocket forms strengthening layer.The advantage of the invention is that：Simple in structure, easily manufactured, stable transmission is good.
Description
Technical field
The present invention relates to a kind of spare and accessory parts of automobile engine, a kind of especially crankshaft chain wheel of automobile engine.
Background technology
Timing sprocket is the important component of engine air distribution system, by the connection with bent axle and coordinates certain biography
It is dynamic than ensureing the accurate of inlet and outlet time.When the engine runs, the unlatching of stroke (upper and lower movement) valve of piston with
The sequence (time) of (time) igniting is closed, under the connection function of " timing ", the moment will keep " synchronizing " operating.
With intensification of the development and compatriots of automotive engineering to automobile awareness, user is to vehicle comfort and dynamic property
The requirement of energy is higher and higher.Turbo charged main function is exactly to improve engine exhaust amount, so as to improve the power of engine
And torque, allow car energeticallyer.After one engine loads onto turbocharger, phase when maximum power is with without booster
It is more even higher than 40% can be increased.But after having filled turbocharger, the pressure and temperature of engine at work is all big
Big raising, therefore engine life can be shorter than engine of the similary discharge capacity not by supercharging, and mechanical performance, lubricity
It can all be affected, this also can propose higher requirement by each parts in turbocharged engine.
Turbo charged application can improve the power performance of automobile, but the impact of bigger is also brought to power assembly,
Generate the driveline vibrations of bigger.Excessive vibration can influence the reliability connected between parts, influence the stabilization of equipment
Operation and service life.Belt slips caused by vibration in order to prevent, and the both sides of sprocket wheel are provided with baffle ring, existing sprocket wheel more
It is mostly made of monoblock cast, baffle ring is thicker, and so as to cause the overall volume of sprocket wheel larger, therefore its structure needs further
It improves.
Invention content
The technical problem to be solved by the invention for the present situation of prior art is to provide simple in structure, easily manufactured, biographies
A kind of good crankshaft chain wheel of automobile engine of dynamic stability.
Technical solution is used by the present invention solves above-mentioned technical problem：
A kind of crankshaft chain wheel of automobile engine, includes crankshaft sprocket ontology, and crankshaft sprocket ontology being provided centrally with and assembling
The pilot hole being axially adapted to, crankshaft sprocket ontology are the integral structure of powder metallurgy forming, and crankshaft sprocket ontology is provided with timing
Index aperture forms the first fluted disc and the second fluted disc on crankshaft sprocket ontology, and the periphery of the first fluted disc forms the first sprocket, and
The periphery of two fluted discs forms the second sprocket, is formed fluted between the first fluted disc and the second fluted disc, and the width of the first fluted disc is big
Weight difference between the first fluted disc and the second fluted disc can be offset by being formed on the outside of the width of second fluted disc, the first fluted disc
Lightening grooves；The surface hardening of first sprocket and the second sprocket forms strengthening layer.
The technical measures of optimization further include：
The U-shaped structure of above-mentioned groove.
The both sides of the first above-mentioned sprocket form the first circular arc.
The upper end of the first above-mentioned circular arc forms the first platform, thickness≤0.3mm of the first platform.
The both sides of the second above-mentioned sprocket form the second circular arc.
The upper end of the second above-mentioned circular arc forms the second platform, thickness≤0.3mm of the second platform.
The trapezoidal structure in section of above-mentioned lightening grooves.
Keyway is provided in above-mentioned pilot hole.
The both ends of above-mentioned pilot hole are respectively arranged with chamfering.
The manufacture material component of above-mentioned crankshaft sprocket ontology is：C:0.6% to 0.9%；Cu：1.75% to 2.25%；Other
Foreign metal powder：≤1%；Surplus is Fe.
A kind of crankshaft chain wheel of automobile engine of the present invention, it is simple in structure, powder metallurgical technique one-pass molding is used, is made
It makes conveniently, manufacture is at low cost, and the first fluted disc and the second fluted disc are formed on crankshaft sprocket and forms bidentate dish structure, and the first tooth
The width of disk is more than the width of second fluted disc and forms unsymmetric structure, produced by which can offset in rotation process
Part axial force, so as to make rotation more steady；And lightening grooves are set in the outside of the first fluted disc, the setting of lightening grooves is not only
The overall weight of crankshaft sprocket can be mitigated, generated rotary inertia when reducing rotation, moreover it is possible to protect the center of gravity of crankshaft sprocket
It holds on center line, transmission is so made more to stablize.
Description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the sectional structure chart of the present invention；
Fig. 3 is A portions enlarged drawing in Fig. 2；
Fig. 4 is B portions enlarged drawing in Fig. 2.
Specific embodiment
The present invention is described in further detail below in conjunction with attached drawing embodiment.
Structure diagram for the present invention as shown in Figures 1 to 4,
Reference numeral therein is：Crankshaft sprocket ontology 1, pilot hole 1a, timing marks hole 1b, keyway 1c, the first fluted disc 2,
One sprocket 21, the first circular arc 21a, the first platform 21b, the second fluted disc 3, the second sprocket 31, the second circular arc 31a, the second platform
31b, groove 4, lightening grooves 5.
As shown in Figures 1 to 4,
A kind of crankshaft chain wheel of automobile engine, includes crankshaft sprocket ontology 1, and crankshaft sprocket ontology 1 being provided centrally with and filling
With the pilot hole 1a being axially adapted to, crankshaft sprocket ontology 1 is the integral structure of powder metallurgy forming, and crankshaft sprocket ontology 1 is set
There is timing marks hole 1b, the first fluted disc 2 and the second fluted disc 3, the periphery molding of the first fluted disc 2 are formed on crankshaft sprocket ontology 1
There is the first sprocket 21, the periphery of the second fluted disc 3 forms the second sprocket 31, is formed between the first fluted disc 2 and the second fluted disc 3 recessed
Slot 4, the width of the first fluted disc 2 are more than the width of second fluted disc 3, and the outside of the first fluted disc 2, which forms, can offset the first tooth
The lightening grooves 5 of weight difference between 2 and second fluted disc 3 of disk；The surface hardening of first sprocket 21 and the second sprocket 31 forms strengthening layer.
The setting of timing marks hole 1b is it can clearly be seen that timing position, convenient to overhaul.
The first fluted disc 2 and the second fluted disc 3 are formed on the crankshaft sprocket of the present invention, so as to form bidentate dish structure, transmission
Shi Caiyong pair of chain drive can improve driving force, and two fluted discs are integrated in one, and can ensure two chain drives
Synchronism.In addition, the width of the first fluted disc 2 is more than the width of second fluted disc 3, so as to form unsymmetric structure, use is non-
Symmetrical structure can offset generated part axial force in rotation process；During installation, smaller second fluted disc 3 of width is close to dress
It is installed with axis.
The setting of lightening grooves 5 can mitigate the overall weight of crankshaft sprocket, produced when crankshaft sprocket rotates so as to reduce
Rotary inertia.Because crankshaft sprocket of the invention uses unsymmetric structure, the first fluted disc 2 and the second fluted disc 3 of different in width
The offset of crankshaft sprocket center of gravity can be caused, this is unfavorable for the stability of transmission, therefore in the first wider fluted disc 2 (heavier-weight)
Outside setting lightening grooves 5, to offset the weight difference between the first fluted disc 2 and the second fluted disc 3, crankshaft sprocket can be made in this way
Whole center of gravity is maintained on center line, so as to improve the stability of transmission.
In embodiment, 4 U-shaped structure of groove；The bottom circular arc of U-shaped structure can reduce stress concentration.
In embodiment, the both sides of the first sprocket 21 form the first circular arc 21a.
In embodiment, the upper end of the first circular arc 21a forms the first platform 21b, thickness≤0.3mm of the first platform 21b.
In embodiment, the both sides of the second sprocket 31 form the second circular arc 31a.
In embodiment, the upper end of the second circular arc 31a forms the second platform 31b, thickness≤0.3mm of the second platform 31b.
In embodiment, the trapezoidal structure in section of lightening grooves 5.
In embodiment, keyway 1c is provided in pilot hole 1a.
In embodiment, the both ends of pilot hole 1a are respectively arranged with chamfering.
The arc structure of 31 both sides of first sprocket 21 and the second sprocket, sprocket in the engagement process of corresponding chain, side
Just sprocket enters, is detached from gap on chain, can also avoid in sprocket wheel transmission process, and sprocket occurs stuck with chain.
The material component that crankshaft sprocket ontology 1 is made is：
C:0.6% to 0.9%；Cu：1.75% to 2.25%；Other impurities metal powder (Zn, Ni, Al etc.)：≤1%；Surplus is Fe；
Using crankshaft sprocket ontology 1 made of above-mentioned material, density is >=7g/cm3.Made sprocket wheel heat resistance, wearability and
Good corrosion resistance, highly reliable, service life is long.
In the present embodiment, the number of teeth of sprocket wheel is 27, pitch 6.35mm.
This crankshaft sprocket is made of powder metallurgical technique, easily manufactured, and stock utilization is high；And using disposably into
Type, it is easily manufactured, manufacture efficiency can be greatly improved.After the completion of crankshaft sprocket manufacture, carry out sprocket and carry out quenching heat treatment, with
Tooth face hardness is improved, finished product tooth face hardness is at least HRA70, other position hardness are at least HRB65.
In order to ensure product quality, break corner, burr are removed after product machines, makes its surface smooth, while to production
Product carry out narrow examination, and ensureing it, there is no the defects of crackle, sand hole.After having inspected, surface is coated antirust oil and is prevented
Rust protection.
Highly preferred embodiment of the present invention has illustrated, and the various change or remodeling made by those of ordinary skill in the art are not
It can depart from the scope of the present invention.
Claims (10)
1. a kind of crankshaft chain wheel of automobile engine, include crankshaft sprocket ontology (1), in the crankshaft sprocket ontology (1)
The heart is provided with assembling the pilot hole (1a) being axially adapted to, it is characterized in that:The crankshaft sprocket ontology (1) for powder metallurgy into
The integral structure of type, the crankshaft sprocket ontology (1) are provided with timing marks hole (1b), the crankshaft sprocket ontology (1)
On form the first fluted disc (2) and the second fluted disc (3), the periphery of first fluted disc (2) forms the first sprocket (21), institute
The periphery of the second fluted disc (3) stated forms the second sprocket (31), shape between first fluted disc (2) and the second fluted disc (3)
Into fluted (4), the width of first fluted disc (2) is more than the width of second fluted disc (3), first fluted disc
(2) lightening grooves (5) of weight difference between the first fluted disc (2) and the second fluted disc (3) can be offset by being formed on the outside of；Described first
The surface hardening of sprocket (21) and the second sprocket (31) forms strengthening layer.
2. a kind of crankshaft chain wheel of automobile engine according to claim 1, it is characterized in that：Described groove (4) the U-shaped knot
Structure.
3. a kind of crankshaft chain wheel of automobile engine according to claim 2, it is characterized in that：First sprocket (21)
Both sides form the first circular arc (21a).
4. a kind of crankshaft chain wheel of automobile engine according to claim 3, it is characterized in that：First circular arc (21a)
Upper end form the first platform (21b), thickness≤0.3mm of first platform (21b).
5. a kind of crankshaft chain wheel of automobile engine according to claim 4, it is characterized in that：Second sprocket (31)
Both sides form the second circular arc (31a).
6. a kind of crankshaft chain wheel of automobile engine according to claim 5, it is characterized in that：Second circular arc (31a)
Upper end form the second platform (31b), thickness≤0.3mm of second platform (31b).
7. a kind of crankshaft chain wheel of automobile engine according to claim 6, it is characterized in that：The lightening grooves (5) are cut
The trapezoidal structure in face.
8. a kind of crankshaft chain wheel of automobile engine according to claim 7, it is characterized in that：It is set in the pilot hole (1a)
It is equipped with keyway (1c).
9. a kind of crankshaft chain wheel of automobile engine according to claim 8, it is characterized in that：The two of the pilot hole (1a)
End is respectively arranged with chamfering.
10. a kind of crankshaft chain wheel of automobile engine according to claim 9, it is characterized in that：The crankshaft sprocket ontology
(1) manufacture material component is：C:0.6% to 0.9%；Cu：1.75% to 2.25%；Other impurities metal powder：≤1%；Surplus is
Fe。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810170357.2A CN108194616A (en) | 2018-03-01 | 2018-03-01 | A kind of crankshaft chain wheel of automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810170357.2A CN108194616A (en) | 2018-03-01 | 2018-03-01 | A kind of crankshaft chain wheel of automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108194616A true CN108194616A (en) | 2018-06-22 |
Family
ID=62594354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810170357.2A Pending CN108194616A (en) | 2018-03-01 | 2018-03-01 | A kind of crankshaft chain wheel of automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108194616A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201982613U (en) * | 2011-01-27 | 2011-09-21 | 长城汽车股份有限公司 | Crankshaft chain wheel of automobile engine |
| CN202579927U (en) * | 2012-02-27 | 2012-12-05 | 浙江中益机械有限公司 | Double-chain gear |
| CN202812112U (en) * | 2013-01-11 | 2013-03-20 | 浙江大鹏机械有限公司 | Second gear of vehicle transmission |
| CN103671832A (en) * | 2012-09-04 | 2014-03-26 | 江南嘉捷电梯股份有限公司 | Combined type chain wheel and escalator or moving pavement including same |
| CN204056183U (en) * | 2014-08-12 | 2014-12-31 | 吕志同 | Automatic charging electric vehicle |
| US20150176692A1 (en) * | 2013-12-20 | 2015-06-25 | Hyundai Motor Company | Sprocket |
| CN204628488U (en) * | 2015-03-31 | 2015-09-09 | 德清县旺盛金属制品有限公司 | Dual-tooth chain wheel |
| CN204647220U (en) * | 2015-04-28 | 2015-09-16 | 宁波金鑫粉末冶金有限公司 | A kind of automobile crane sprocket wheel |
| CN106065794A (en) * | 2016-08-11 | 2016-11-02 | 杭州东华链条集团有限公司 | A kind of double-strand engine timing system |
| CN106523658A (en) * | 2015-12-04 | 2017-03-22 | 重庆万里江发链轮有限公司 | Integral low-noise flexible-filtering duplex chain wheel |
| CN207961459U (en) * | 2018-03-01 | 2018-10-12 | 宁波金鑫粉末冶金有限公司 | A kind of crankshaft chain wheel of automobile engine |
-
2018
- 2018-03-01 CN CN201810170357.2A patent/CN108194616A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201982613U (en) * | 2011-01-27 | 2011-09-21 | 长城汽车股份有限公司 | Crankshaft chain wheel of automobile engine |
| CN202579927U (en) * | 2012-02-27 | 2012-12-05 | 浙江中益机械有限公司 | Double-chain gear |
| CN103671832A (en) * | 2012-09-04 | 2014-03-26 | 江南嘉捷电梯股份有限公司 | Combined type chain wheel and escalator or moving pavement including same |
| CN202812112U (en) * | 2013-01-11 | 2013-03-20 | 浙江大鹏机械有限公司 | Second gear of vehicle transmission |
| US20150176692A1 (en) * | 2013-12-20 | 2015-06-25 | Hyundai Motor Company | Sprocket |
| CN204056183U (en) * | 2014-08-12 | 2014-12-31 | 吕志同 | Automatic charging electric vehicle |
| CN204628488U (en) * | 2015-03-31 | 2015-09-09 | 德清县旺盛金属制品有限公司 | Dual-tooth chain wheel |
| CN204647220U (en) * | 2015-04-28 | 2015-09-16 | 宁波金鑫粉末冶金有限公司 | A kind of automobile crane sprocket wheel |
| CN106523658A (en) * | 2015-12-04 | 2017-03-22 | 重庆万里江发链轮有限公司 | Integral low-noise flexible-filtering duplex chain wheel |
| CN106065794A (en) * | 2016-08-11 | 2016-11-02 | 杭州东华链条集团有限公司 | A kind of double-strand engine timing system |
| CN207961459U (en) * | 2018-03-01 | 2018-10-12 | 宁波金鑫粉末冶金有限公司 | A kind of crankshaft chain wheel of automobile engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8580048B2 (en) | Steel material composition for producing piston rings and cylinder sleeves | |
| CN100595004C (en) | Method for manufacturing damping belt pulley hub and damping belt pulley equipped with the hub | |
| CN103484796A (en) | Engine piston material and processing technology thereof | |
| JP2012518764A (en) | Steel composition for manufacturing piston rings and cylinder sleeves | |
| CN207961459U (en) | A kind of crankshaft chain wheel of automobile engine | |
| JP2012518765A (en) | Steel composition for manufacturing piston rings and cylinder sleeves | |
| JP2012518766A (en) | Steel composition for manufacturing piston rings and cylinder sleeves | |
| CN108194616A (en) | A kind of crankshaft chain wheel of automobile engine | |
| CN107237877A (en) | A kind of preparation method of powder metallurgical gear or belt wheel | |
| US9902020B2 (en) | Drive train device for a motor vehicle and production process for a drive train device | |
| US8303891B2 (en) | Method for producing non-circular toothed belt pulleys or sprockets | |
| CN107262723B (en) | A kind of preparation method of powder metallurgical gear or belt wheel | |
| KR101326884B1 (en) | Multi-layer type cylinder head and manufacturing method therefor | |
| KR20120134680A (en) | Aluminum alloy of air compressor | |
| CN110657175B (en) | Composite material brake drum and preparation method thereof | |
| CN104763515A (en) | Diesel engine and vehicle | |
| CN201368184Y (en) | Differential mechanism adjusting gasket of automobile transmission bridge | |
| KR20150004385A (en) | Metal cast component and method for producing a metal cast component | |
| CN206723400U (en) | A kind of automobile-engine crankshaft belt pulley structure | |
| CN207961460U (en) | A kind of automobile engine oil pump sprocket wheel | |
| CN203796436U (en) | Crankcase and engine | |
| CN208024809U (en) | A kind of automobile engine oil pump belt pulley | |
| CN2687428Y (en) | High strength modified nylon mould compound wheel | |
| CN211715196U (en) | Lightweight engine bald machine mechanism | |
| CN2526600Y (en) | Driven gear for motorcycle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180622 |
|
| RJ01 | Rejection of invention patent application after publication |