CN105179102B - The crankcase and its air-breather of a kind of motorcycle engine - Google Patents
The crankcase and its air-breather of a kind of motorcycle engine Download PDFInfo
- Publication number
- CN105179102B CN105179102B CN201510633905.7A CN201510633905A CN105179102B CN 105179102 B CN105179102 B CN 105179102B CN 201510633905 A CN201510633905 A CN 201510633905A CN 105179102 B CN105179102 B CN 105179102B
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- China
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- venthole
- mould assembling
- babinet
- assembling bolt
- bolt platform
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Abstract
The invention discloses a kind of crankcase of motorcycle engine, including babinet, the babinet is equipped with the venthole of connection box house, the periphery of the babinet is equipped with some mould assembling bolt platforms for being used to install another babinet or lid set along tank thickness direction, screw hole or unthreaded hole are provided with mould assembling bolt platform, the venthole is disposed therein on a mould assembling bolt platform.The invention also discloses a kind of air-breather of motorcycle engine, including air filter, and above-mentioned crankcase, gas-tpe fitting is pressed with the venthole, the gas-tpe fitting is connected by air outlet pipe with air filter.In addition the present invention is without setting installation base, material is greatly saved, and without setting bulge-structure in left side mold, solves the problems, such as that left and right side mold intersects and causes mould structure complicated, intersect the overlap of boss without manual cleaning, processing is simple.
Description
Technical field
The present invention relates to the crankcase and its air-breather of motorcycle field, particularly a kind of motorcycle engine.
Background technology
Motorcycle engine is in compression process and combustion process, due to that, there are gap, can make combustion between piston and cylinder
Burn indoor part mixed gas and scurry into crankcase, cause the pressure in crankcase body to rise, thus need in babinet
Pressure is balanced with air, avoids, since the rise of babinet internal pressure is excessive, causing the sealing position of machine oil from each shafting to press outward,
Produce oil leak, or even the serious problems that oil sealing can be caused directly to be forced out.For this reason, it may be necessary to the arrangement connection air outlet pipe on crankcase
Gas-tpe fitting, air is connected by air outlet pipe and carries out pressure balance, at the same in order to avoid gas is directly discharged in air and
Environment is polluted, usually air outlet pipe is connected on air filter.
With reference to Fig. 1, existing crankshaft box of motorcycle engine is generally building the case of crankcase to install gas-tpe fitting
The outside of body 100 ' is special to set installation base 1 ', and processes venthole 11 ' on installation base 1 ' to be pressed gas-tpe fitting 2 ', institute
State the middle part that installation base 1 ' is arranged on tank thickness direction, during casting box, in order to allow the installation base 1 ' to be molded, it is necessary to
Bulge-structure 201 ' is made in left side mold 200 ' and is inserted into right side mold 300 ', with reference to Fig. 2 and Fig. 3, so as to form left and right sides
Mould chi structure, not only mould structure is complicated, and left and right side mold force-bearing situation is poor, in the demoulding, clamping process, left and right sides
The intersection matching part of mould is easy to wear, and die life is short, and, it is necessary to manual cleaning or so side mold after babinet casting
Between touch the overlap at mould position, the overlap at mould position is touched for the ease of cleaning, installation base 1 ' needs the knot in left and right side mold
Projection one intersects boss 3 ' between conjunction face, thereby results in waste of material.
The content of the invention
For overcome the deficiencies in the prior art, the present invention provides the crankcase and its ventilation dress of a kind of motorcycle engine
Put, it can solve the problems, such as that left and right sides mould intersects and causes manual cleaning overlap after mould structure complexity and casting, and can
Save material.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of crankcase of motorcycle engine, including babinet, the babinet are equipped with the venthole of connection box house,
The periphery of the babinet is equipped with some mould assembling bolt platforms for being used to install another babinet or lid set along tank thickness direction,
Screw hole or unthreaded hole are provided with mould assembling bolt platform, the venthole is disposed therein on a mould assembling bolt platform.
As the improvement of above-mentioned technical proposal, the venthole is arranged on the mould assembling bolt platform with screw hole.
Further as above-mentioned technical proposal is improved, and the screw hole of the mould assembling bolt platform equipped with venthole is blind hole,
The venthole is arranged at the side on the screw hole length direction, and close to the blind end of the screw hole.
Further, the babinet is equipped with mould assembling face, the conjunction equipped with venthole along the both ends on tank thickness direction
The both ends of case bolt platform extend respectively to two mould assembling faces, and the venthole is arranged on the middle part of the mould assembling bolt platform, the mould assembling
Bolt platform is equipped with the screw hole in the both sides of venthole.
Further, the mould assembling bolt platform equipped with venthole is equipped with the screw hole described in one.
Further, the venthole is arranged on the mould assembling bolt platform with unthreaded hole, and the venthole is staggered with the unthreaded hole
Open.
Further, the outside of the mould assembling bolt platform equipped with venthole is equipped with mounting plane, and the venthole is vertically opened
It is located on the mounting plane.
Further, the venthole is arranged on the center position on mould assembling bolt platform width.
Further, it is pressed with gas-tpe fitting in the venthole.
A kind of air-breather of motorcycle engine, including air filter, and a kind of above-mentioned motorcycle engine
Crankcase, is pressed with gas-tpe fitting in the venthole, the gas-tpe fitting is connected by air outlet pipe with air filter.
The beneficial effects of the invention are as follows：The present invention takes full advantage of existing mould assembling bolt platform, will install gas-tpe fitting
Venthole is arranged on mould assembling bolt platform, and without in addition setting installation base, material is greatly saved, and without in left side mould
Bulge-structure is set on tool, solves the problems, such as that left and right side mold intersects and causes mould structure complicated, without manual cleaning
Intersect the overlap of boss, processing is simple.Especially, venthole is arranged on to the middle part of mould assembling bolt platform, and in venthole
Both sides set the screw hole of mould assembling, make babinet stress more balanced, extend the service life of crankcase.The configuration of the present invention is simple,
Implementation cost is low.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is a kind of schematic diagram of the crankcase of existing motorcycle engine；
Fig. 2, Fig. 3 show the structure diagram for the left and right side mold for casting existing babinet；
Fig. 4 is the schematic diagram of outlet pipe mounting structure embodiment 1 in the present invention；
Fig. 5 is the diagrammatic cross-section of outlet pipe mounting structure embodiment 1 in the present invention；
Fig. 6 is the schematic diagram of 1 another angle of outlet pipe mounting structure embodiment in the present invention；
Fig. 7 shows the structure diagram of the left and right side mold of the babinet in the casting present invention；
Fig. 8 shows the structure diagram that venthole is arranged on the mould assembling bolt platform with unthreaded hole；
Fig. 9 shows the diagrammatic cross-section that venthole is arranged on the mould assembling bolt platform with unthreaded hole；
Figure 10 is the schematic diagram of outlet pipe mounting structure embodiment 2 in the present invention；
Figure 11 is the diagrammatic cross-section of outlet pipe mounting structure embodiment 2 in the present invention；
Figure 12 is that air-breather is installed on the structure diagram on motorcycle in the present invention.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
Embodiment 1
With reference to Fig. 4 and Fig. 6, a kind of crankcase of motorcycle engine, including babinet 100, the babinet 100, which is equipped with, to be connected
Venthole 20 inside logical babinet 100, connects air outlet pipe, gas-tpe fitting 3, outlet is pressed with the venthole 20 for convenience
Pipe is plugged on the position that gas-tpe fitting 3 exposes venthole 20.The periphery of the babinet 100 is equipped with some along 100 thickness side of babinet
To the mould assembling bolt platform 1 for being used to install another babinet or lid of setting, screw hole 21 or light are provided with the mould assembling bolt platform 1
Hole, here, either setting all conjunctions on screw hole 21 or babinet 100 on babinet 100 in all mould assembling bolt platforms 1
Unthreaded hole is set in case bolt platform 1, can also be and screw hole 21, part mould assembling spiral shell are set in the part mould assembling bolt platform 1 on babinet 100
Unthreaded hole is set in bolt platform 1.In the present embodiment, the venthole 20 is disposed therein a mould assembling bolt platform 1 with screw hole 21
On.With reference to Fig. 8 and Fig. 9, the venthole 20 can also be arranged on the mould assembling bolt platform 1 with unthreaded hole 22, at this moment, to prevent
Venthole 20 is interfered with the bolt through unthreaded hole 22, and the venthole 20 is staggered with the unthreaded hole 22, i.e., by venthole 20 and light
22 eccentric axis of hole are set, and concrete structure can be chosen according to the fit structure of actual babinet 100.
Interfere in order to avoid loading the bolt in screw hole 21 with the gas-tpe fitting 3 being installed in venthole 20, while be also
Ensure the sealed reliable of gas-tpe fitting press-in, the screw hole 21 of the mould assembling bolt platform 1 equipped with venthole 20 is blind hole, described
Venthole 20 is arranged at the side on 21 length direction of screw hole, and close to the blind end of the screw hole 21.Venthole in the structure
20 is reasonable with the relative position relation setting of screw hole 21, can effectively save material, and can prevent bolt from being touched in rundown process
Gas-tpe fitting 3 and influence the connectivity robustness between gas-tpe fitting 3 and venthole 20.
In the present embodiment, the babinet 100 is equipped with mould assembling face 10 along the both ends on 100 thickness direction of babinet, described to set
The both ends for having the mould assembling bolt platform 1 of venthole 20 extend respectively to two mould assembling faces 10, and the venthole 20 is arranged on the mould assembling
The middle part of bolt platform 1, the mould assembling bolt platform 1 are equipped with the screw hole 21 in the both sides of venthole 20.The structure is due to mould assembling
Bolt platform 1 sets two screw holes 21 respectively in 20 both sides of venthole, for connecting the babinet 100 and other babinets or lid, makes
100 stress of babinet is more balanced, ensure that the leakproofness between the babinet 100 and other babinets or lid, extends bent axle
The service life of case.
Fig. 7 shows the left side mold 200 for casting the babinet 100 and the structure of right side mold 300, and the present invention will be due to that will go out
Stomata 20 is arranged on existing mould assembling bolt platform 1, and mould assembling bolt platform 1 is in side in-mold molding, without in left side mold
Bulge-structure is set and forms the structure that left and right side mold intersects, mould structure is simple, and stress is more preferable, and service life is longer,
Production cost is lower.
Venthole 20 is processed in order to facilitate positioning, the outside of the mould assembling bolt platform 1 equipped with venthole 20 is equipped with installation
Plane, the venthole 20 are vertically opened on the mounting plane.Preferably, the venthole 20 is arranged on mould assembling bolt platform 1
Center position on width, the structure deviate the structure of above-mentioned center relative to venthole 20, are not changing original
Under the width dimensions of some mould assembling bolt platforms 1, the aperture of venthole 20 can be increased as far as possible, so as to improve throughput.
Embodiment 2
With reference to Figure 10 and Figure 11, the difference of itself and embodiment 1 is, the mould assembling bolt platform equipped with venthole 20
1 is equipped with the screw hole 21 described in one.
With reference to Figure 12, the invention also discloses a kind of air-breather of motorcycle engine, including air filter 5 and on
A kind of crankcase for the motorcycle engine stated, is pressed with gas-tpe fitting 3 in the venthole 20, the gas-tpe fitting 3 passes through
Air outlet pipe 4 is connected with air filter 5.The mixed gas scurried into babinet 100 is imported air mistake by the structure by air outlet pipe 4
In filter 5, cylinder combustion is inhaled into together with air with air filter 5, avoids gas blowby from being directly discharged in air and dirty
Contaminate environment.
The present invention takes full advantage of existing mould assembling bolt platform 1, and the venthole 20 for installing gas-tpe fitting 3 is arranged on mould assembling
On bolt platform 1, without in addition setting installation base, material is greatly saved, and without setting raised knot in left side mold
Structure, solves the problems, such as that left and right side mold intersects and causes mould structure complicated, intersects boss without manual cleaning
Overlap, processing are simple.The configuration of the present invention is simple, implementation cost are low.
Certainly, the present invention can also have the deformation in other structures, these equivalent technologies in addition to the above embodiment
Scheme should also be as within its protection domain.
Claims (5)
- A kind of 1. crankcase of motorcycle engine, it is characterised in that：Including babinet, the babinet is equipped with connection box house Venthole, the periphery of the babinet is equipped with some conjunctions for being used to install another babinet or lid set along tank thickness direction Case bolt platform, is provided with screw hole in mould assembling bolt platform, the venthole is disposed therein on a mould assembling bolt platform, the outlet Hole is arranged on the mould assembling bolt platform with screw hole, and the screw hole of the mould assembling bolt platform equipped with venthole is blind hole, it is described go out Stomata is arranged at the side on the screw hole length direction, and close to the blind end of the screw hole, and the babinet is along tank thickness direction On both ends be equipped with mould assembling face, the both ends of the mould assembling bolt platform equipped with venthole extend respectively to two mould assembling faces, The venthole is arranged on the middle part of the mould assembling bolt platform, which is equipped with the screw hole in the both sides of venthole.
- A kind of 2. crankcase of motorcycle engine according to claim 1, it is characterised in that：It is described equipped with venthole The outside of mould assembling bolt platform is equipped with mounting plane, and the venthole is vertically opened on the mounting plane.
- A kind of 3. crankcase of motorcycle engine according to claim 1, it is characterised in that：The venthole is arranged on Center position on mould assembling bolt platform width.
- A kind of 4. crankcase of motorcycle engine according to claim 1, it is characterised in that：Press fitting in the venthole There is gas-tpe fitting.
- 5. a kind of air-breather of motorcycle engine, including air filter, it is characterised in that：Further include claims 1 to 3 A kind of crankcase of motorcycle engine of any one of them, is pressed with gas-tpe fitting, the gas-tpe fitting in the venthole It is connected by air outlet pipe with air filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510633905.7A CN105179102B (en) | 2015-09-23 | 2015-09-28 | The crankcase and its air-breather of a kind of motorcycle engine |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510613463 | 2015-09-23 | ||
| CN201510613463X | 2015-09-23 | ||
| CN201510633905.7A CN105179102B (en) | 2015-09-23 | 2015-09-28 | The crankcase and its air-breather of a kind of motorcycle engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105179102A CN105179102A (en) | 2015-12-23 |
| CN105179102B true CN105179102B (en) | 2018-04-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510633905.7A Active CN105179102B (en) | 2015-09-23 | 2015-09-28 | The crankcase and its air-breather of a kind of motorcycle engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105179102B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1351221A (en) * | 2000-11-01 | 2002-05-29 | 本田技研工业株式会社 | Structure for engine valve body running |
| CN200939912Y (en) * | 2006-08-23 | 2007-08-29 | 江门市大长江集团有限公司 | Protection mechanism for motor cycle engine crankcase |
| CN103821590A (en) * | 2014-02-26 | 2014-05-28 | 江门市大长江集团有限公司 | Crankcase oil-gas separation mechanism |
| CN205025634U (en) * | 2015-09-28 | 2016-02-10 | 江门市大长江集团有限公司 | Crankcase of motorcycle engine and air -breather thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004218453A (en) * | 2003-01-09 | 2004-08-05 | Suzuki Motor Corp | Breather device for engine |
-
2015
- 2015-09-28 CN CN201510633905.7A patent/CN105179102B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1351221A (en) * | 2000-11-01 | 2002-05-29 | 本田技研工业株式会社 | Structure for engine valve body running |
| CN200939912Y (en) * | 2006-08-23 | 2007-08-29 | 江门市大长江集团有限公司 | Protection mechanism for motor cycle engine crankcase |
| CN103821590A (en) * | 2014-02-26 | 2014-05-28 | 江门市大长江集团有限公司 | Crankcase oil-gas separation mechanism |
| CN205025634U (en) * | 2015-09-28 | 2016-02-10 | 江门市大长江集团有限公司 | Crankcase of motorcycle engine and air -breather thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105179102A (en) | 2015-12-23 |
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