CN102400809B - Light high-stiffness single cylinder diesel aluminum alloy organism - Google Patents
Light high-stiffness single cylinder diesel aluminum alloy organism Download PDFInfo
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- CN102400809B CN102400809B CN201110360462.0A CN201110360462A CN102400809B CN 102400809 B CN102400809 B CN 102400809B CN 201110360462 A CN201110360462 A CN 201110360462A CN 102400809 B CN102400809 B CN 102400809B
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Abstract
A kind of light high-stiffness single cylinder diesel aluminum alloy organism, including gear chamber capping, bearing seat surface, cylinder faying face, installation bottom surface and cylinder head fixing threaded hole, the radiating ribs of perpendicular separation distribution are provided with below gear chamber capping and bearing seat surface, the depth of thread increase of cylinder head fixing threaded hole, size of the dimension between holes that all steel component assemblings coordinate than design is small.This structural design scheme causes the present invention to have lightweight, radiating rate fast, and intensity and toughness is high, and the fit precision of each mating holes system, which can be stablized, to be ensured, the both mechanical stability of diesel engine is reliable, and the service life of diesel engine can be ensured from mechanical structure.
Description
Technical field
The present invention relates to the body of the part of single-cylinder water cooled diesel engine, more particularly to single-cylinder water cooled diesel engine.
Background technology
Body is core part in single cylinder diesel, and it is the built-up foundation part of whole diesel engine, thereon both provided with installation
Bent axle, cylinder head, cylinder jacket, camshaft, the hole system of injection pump, are additionally provided with installation bearing block, gear chamber cover, handhole cover, machine
The faying face of oilcan, the dimensional accuracy of hole system, the accuracy of form and position and its size of deflection directly influences bavin in the course of the work
Oil machine performance indications, therefore, for diesel engine, body must have enough rigidity, and deflection as small as possible is as small as possible
The mass ratio of unit power.The raising that expansion and user with diesel engine using scope are required, the machine of single-cylinder water cooled diesel engine
The transition of body aluminum is inevitable requirement, but how to realize single-cylinder water cooled diesel engine body turning from ironcasting to aluminum alloy die casting
Type is all unsuccessful although domestic existing diesel engine enterprise carried out correlation test also without ripe technical scheme.According to casting
The characteristic that iron and aluminium alloy have both materials is understood：Casting aluminium material is that allowable stress is 220MPa after ZL106T6 is heat-treated,
With HT200~250 quite, its mechanical strength is suitable with cast iron, but the modulus of elasticity of aluminium alloy is 70GPa, and cast iron is
110GPa, it can thus be appreciated that aluminum alloy materials are than cast iron " soft ", therefore body is made into after cast aluminium alloy from cast iron, its mechanically deform
Amount increase, can cause cylinder liner deformation excessive, and mechanical efficiency declines, air leakage increase, power drop, the increase of lubricating oil carry-over amount, machine
Oil consumption increases, and discharge performance is deteriorated；Cylinder head bolt lug elongation increases, and body top plane warping amount increase, influence is high
Densification sealing property, it may occur however that rush cylinder pad phenomenon；Bearing hole deflection increases, and rolling bearing loosens, and generation bearing is walked outer ring and showed
As causing rolling bearing earlier period damage；Buckling deformation occurs for bearing hole and each seal face, it is possible to cause oil leak, leak.
By analysis, existing diesel body replaces cast iron to be unworkable only with aluminium alloy, it is necessary to carry out structure
Curve guide impeller, because aluminum alloy organism is different from the coefficient of thermal expansion and contraction for being assemblied in steel parts thereon, works as motor hand
When making, the machine temperature of diesel engine can be improved quickly, so that original fit precision is destroyed, so as to cause diesel engine to produce above-mentioned lack
Fall into, the technical performance index stability of diesel engine, reliability reduction, service life are difficult to ensure that.Reduce the operating temperature of body
And temperature difference, it is the effective way for overcoming drawbacks described above.
The content of the invention
It is an object of the invention to provide a kind of light high-stiffness single cylinder diesel aluminum alloy organism.
A kind of light high-stiffness single cylinder diesel aluminum alloy organism, including gear chamber capping, bearing seat surface, cylinder are combined
Face, bottom surface, cylinder jacket mounting hole system are installed, crankshaft installed hole system, camshaft mounting hole system and are arranged on cylinder faying face
Four cylinder head fixing threaded holes, it is characterized in that：Bottom surface is installed to protrude I-shaped mounting surface, in the gear chamber of gear chamber capping
Lower section is provided with the long tooth radiating ribs that perpendicular separation is distributed, and is distributed in the lower section of the bearing race of bearing seat surface provided with perpendicular separation
Short tooth radiating ribs, the depth of thread of the cylinder head fixing threaded hole is 2~4 times of the diameter of thread, and cylinder jacket installs dimension between holes
Smaller than design size 0.005~0.012 millimeter, the size of crankshaft installed hole system is smaller than design size 0.005~0.035 millimeter,
The size of camshaft mounting hole system is smaller than design size 0.003~0.010 millimeter, and the wall thickness of body is 3.5~4.5 millimeters.
Further, the protrusion height of long tooth radiating ribs is 5~15 millimeters, and spacing distance is 5~10 millimeters, short tooth radiating ribs
Protrusion top surface it is lower than bearing race outer face 0.2~2.0 millimeter, the wall thickness of body is 4.0 millimeters.
Due to replacing cast iron using aluminium alloy, and the wall thickness of body averagely reduces 1~2 millimeter, the weight of whole body
The 1/3 of only existing cast iron engine block, extremely meets the supporting requirement of lightweight of walking machine, because the heat dispersion of aluminium alloy is excellent
In cast iron, the operating temperature of whole body is lower than ironcasting 5 DEG C~12 DEG C, simultaneously because the heat produced by cylinder jacket passes through machine
Cooling water, aluminum alloy organism, diesel engine cooling water tank in internal water channel hole are quickly dissipated, from principle for, aluminium
The superior heat conductivility of alloy body is possible to make the oil temperature in body to raise, but is due to tooth of the present invention in body
The downward vertical compartment of terrain of engineer room capping and bearing race distributed radiating ribs, can prevent oil temperature from raising, and can strengthen
The intensity of body, overcomes gear chamber capping and the unbalanced defect of bearing seat surface rigidity, and the screw thread of cylinder head fixing threaded hole is deep
Spend for 2~4 times of the diameter of thread, cylinder head and the bond strength of body can be improved, prevent bonding strength not enough, cylinder jacket is installed
Dimension between holes are smaller than design size 0.005~0.012 millimeter, and the size of crankshaft installed hole system is smaller than design size by 0.005~
0.035 millimeter, the size of camshaft mounting hole system is smaller than design size 0.003~0.010 millimeter, can effectively overcome because of aluminium alloy
Body coordinates with steel component destroys original design fit precision when diesel engine works, so as to cause under diesel engine performance
Drop, can ensure the service life of diesel engine from mechanical structure.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is Fig. 1 left view；
Fig. 3 is Fig. 1 rearview；
Fig. 4 is Fig. 1 upward view；
In figure：1- gear chamber cappings；2- bearing seat surfaces；3- cylinder faying faces；4- installs bottom surface；5- cylinder jacket mounting holes
System；6- crankshaft installeds hole system；7- camshaft mounting holes system；8- cylinder head fixing threaded holes；9- long tooth radiating ribs；10- short teeth radiate
Muscle.
Embodiment
The embodiment of the present invention is exemplified below：
It is model R175A single cylinder diesel aluminum alloy organisms as shown in Figure 1 to 4, it includes gear chamber capping 1, bearing
Seat surface 2, cylinder faying face 3, installation bottom surface 4, cylinder jacket mounting hole system 5, crankshaft installed hole are 6, camshaft mounting hole system 7 and set
Four cylinder head fixing threaded holes 8 on cylinder faying face 3 are put, bottom surface 4 are installed to protrude I-shaped mounting surface, in gear chamber cover
The lower section of the gear chamber in face 1 is provided with the long tooth radiating ribs 9 that perpendicular separation is distributed, and the protrusion height of long tooth radiating ribs 9 is 8 millimeters,
Spacing distance is 6 millimeters each other, the short tooth radiating being distributed in the lower section of the bearing race of bearing seat surface 2 provided with perpendicular separation
Muscle 10, the top surface of short tooth radiating ribs 10 is lower than bearing race outer face 0.5 millimeter, in the entrance of cylinder head fixing threaded hole 8 provided with straight
Footpath is the positioning counterbore that 12.2 mm depths are 15.3 millimeters, and screw thread hole depth is 45 millimeters, and cylinder head fixing threaded hole lug is straight
Footpath is 10 millimeters, and the size of cylinder jacket mounting hole system 5 is smaller than design size 0.005~0.012 millimeter, and crankshaft installed hole is 6 chi
Very little smaller than design size 0.005~0.035 millimeter, the size of camshaft mounting hole system 7 is smaller than design size by 0.003~0.010
Millimeter, the wall thickness of body is 4.0 millimeters.
Claims (2)
1. a kind of light high-stiffness single cylinder diesel aluminum alloy organism, including gear chamber capping (1), bearing seat surface (2), cylinder knot
Conjunction face (3), installation bottom surface (4), cylinder jacket mounting hole system (5), crankshaft installed hole system (6), camshaft mounting hole system (7) and setting
Four cylinder head fixing threaded holes (8) on cylinder faying face (3), it is characterized in that：Bottom surface (4) are installed to protrude I-shaped install
Face, the long tooth radiating ribs (9) that perpendicular separation is distributed, long tooth radiating ribs (9) are provided with the lower section of the gear chamber of gear chamber capping (1)
Protrusion height be 5~15 millimeters, spacing distance be 5~10 millimeters, bearing seat surface (2) bearing race lower section provided with hang down
The short tooth radiating ribs (10) being directly spaced apart, the protrusion top surface of short tooth radiating ribs (10) is lower than bearing race outer face by 0.2~2.0
Millimeter, the depth of thread of the cylinder head fixing threaded hole (8) is 2~4 times of the diameter of thread, cylinder jacket mounting hole system (5) size
It is smaller than design size 0.005~0.012 millimeter, size 0.005~0.035 milli smaller than design size of crankshaft installed hole system (6)
Rice, the size of camshaft mounting hole system (7) is smaller than design size 0.003~0.010 millimeter, and the wall thickness of body is 3.5~4.5 millis
Rice.
2. light high-stiffness single cylinder diesel aluminum alloy organism according to claim 1, it is characterized in that：The wall thickness of body is
4.0 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110360462.0A CN102400809B (en) | 2011-11-15 | 2011-11-15 | Light high-stiffness single cylinder diesel aluminum alloy organism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110360462.0A CN102400809B (en) | 2011-11-15 | 2011-11-15 | Light high-stiffness single cylinder diesel aluminum alloy organism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102400809A CN102400809A (en) | 2012-04-04 |
| CN102400809B true CN102400809B (en) | 2017-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110360462.0A Active CN102400809B (en) | 2011-11-15 | 2011-11-15 | Light high-stiffness single cylinder diesel aluminum alloy organism |
Country Status (1)
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705094A (en) * | 2012-07-11 | 2012-10-03 | 无锡华源凯马发动机有限公司 | Improved aluminum alloy single-cylinder inclined air-cooled diesel engine body |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101497122B (en) * | 2008-01-31 | 2011-05-11 | 上海爱仕达汽车零部件有限公司 | Diesel motor aluminium alloy cylinder metal mould low-pressure casting mold |
| DE102008009096A1 (en) * | 2008-02-14 | 2009-01-29 | Daimler Ag | Cylinder crankcase i.e. four-cylinder cylinder crankcase for passenger car-diesel power engine, has auxiliary channel section exhibiting main extending direction, which runs diagonally to cutting plane perpendicular to crankshaft |
| CN201687590U (en) * | 2009-12-25 | 2010-12-29 | 江苏圆通汽车零部件有限责任公司 | Diesel engine body |
| CN201972805U (en) * | 2010-10-27 | 2011-09-14 | 江苏大学 | Light-weight equal-rigidity aluminum diesel engine body |
| CN201902266U (en) * | 2010-12-22 | 2011-07-20 | 慈溪三环柴油机有限公司 | Thin-wall multi-rib aluminum alloy crankcase of single-cylinder diesel |
| CN202300680U (en) * | 2011-11-15 | 2012-07-04 | 金坛鑫田柴油机有限公司 | Light high-rigidity aluminum alloy engine body of single cylinder diesel |
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| CN102400809A (en) | 2012-04-04 |
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| CB02 | Change of applicant information |
Address after: 213200, Jintan District, Jiangsu City, Changzhou province after the town of Yang Zhen Yang Xing Road North Applicant after: Jiangsu Xinland Diesel Engine Co., Ltd. Address before: 213215, Jiangsu, Changzhou province Jintan city town of gold after the town of Yang Yang Xing North Road, No. 1 Applicant before: Jintan Xinland Diesel Engine Co., Ltd. |
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| GR01 | Patent grant |