CN102878289A - Cylinder sleeve inner wall oil circuit structure and production method thereof - Google Patents
Cylinder sleeve inner wall oil circuit structure and production method thereof Download PDFInfo
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- CN102878289A CN102878289A CN2012103720804A CN201210372080A CN102878289A CN 102878289 A CN102878289 A CN 102878289A CN 2012103720804 A CN2012103720804 A CN 2012103720804A CN 201210372080 A CN201210372080 A CN 201210372080A CN 102878289 A CN102878289 A CN 102878289A
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- cylinder liner
- inboard wall
- helix
- channel structures
- oil channel
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Abstract
A cylinder sleeve inner wall oil circuit structure comprises helical lines and micro-pits. Each helical line is 1-150 micrometers in depth, 1-100 micrometers in width, 10-100 in thread number and 1-20 micrometers in pitch. Each micro-pit is 3-100 micrometers in depth. A production method of the cylinder sleeve inner wall oil circuit structure includes: laser transmitted by a laser device passes through optical fibers to form laser beams, the laser beams are projected to a reflector and reflected to a cylinder sleeve inner wall through the reflector for itching the micro-pits and the helical lines. Spot and linear lubricant oil way structures in regular distribution are disposed on the surface of the cylinder sleeve inner wall. Wear resistance is doubled or tripled compared with the prior art, fuel consumption is reduced by 20-25%, cylinder abrasion is reduced from 5 micrometers to 2.5 micrometers, emission of hydrocarbon particles is reduced by 20-25%, and the service life of the cylinder sleeve is prolonged by 1.4 folds.
Description
Technical field
The present invention relates to a kind of cylinder sleeve, be specifically related to a kind of inboard wall of cylinder liner oil channel structures.The invention still further relates to the preparation method of this cylinder sleeve oil circuit.
Background technique
Inboard wall of cylinder liner is the leading face that piston moves reciprocatingly, in the work cylinder sleeve and piston this friction pair is in high temperature, high pressure and particulate is arranged and the operating mode of aggressive medium, inordinate wear can cause leakage of oil, leak vapour and power decline, this just needs inboard wall of cylinder liner to have good lubricating, on the basis of using lubricant oil, also need to rationally prepare oil-bearing structure on the inboard wall of cylinder liner surface, this oil-bearing structure is take little dotted line as main.
Traditional inboard wall of cylinder liner processing technology is honing, honing technique is the angle and the reticulate pattern groove depth that move up and down to control the cylinder sleeve surface crazing of honing head when utilizing the gear honing of hone stone and honing, has formed uncontrollable, mixed and disorderly oil-bearing structure on the cylinder sleeve surface.The reticulate pattern of this structure is deep mixed, little hole is larger than the degree of finish of its inboard wall of cylinder liner of position, deep, increased the oil storage capacity of inboard wall of cylinder liner, and more shallow reticulate pattern is after break-in after a while, little hole just is worn easily, thereby has lost oil storage function, and the fines that wears away is sneaked in the lubricant oil, the wearing and tearing of the further booster engine cylinder sleeve of meeting reduce the life-span of motor.
Summary of the invention
The object of the present invention is to provide a kind of inboard wall of cylinder liner oil channel structures, to improve the oil reserve of inboard wall of cylinder liner.
Another object of the present invention provides the preparation method of above-mentioned inboard wall of cylinder liner oil channel structures.
The object of the present invention is achieved like this, and a kind of inboard wall of cylinder liner oil channel structures is characterized in that: comprise helix and Wei Keng, the described helix degree of depth is 1～150um, and width is 1～100um, and a number is 10～100, and pitch is 1～20mm; Described little hole degree of depth is 3～100um.
The helix degree of depth of inboard wall of cylinder liner epimere is 1～100um, and little hole degree of depth is 1～100um.
The pitch of the helix in inboard wall of cylinder liner stage casing is 1～15mm.
The helix degree of depth of inboard wall of cylinder liner hypomere is 1～100um.
The angle of the little hole of described spiral and substantially horizontal is 30 ℃～145 ℃.
20～350/cm of little pit density in the described helix
2
50～350/cm of little pit density in the helix of described inboard wall of cylinder liner epimere
2
Another object of the present invention is to realize like this, the preparation method of above-mentioned inboard wall of cylinder liner oil channel structures: the laser of laser emission forms laser beam through optical fiber and projects on the reflecting mirror, and described laser beam is refracted to the little hole of etching and helix on the inboard wall of cylinder liner through reflecting mirror.
Laser power is 0.2～2.5KW, pulsewidth 2～10MS, and frequency 100～1000HZ, basic mode are TM00.
When the inboard wall of cylinder liner epimere was carried out the little hole of etching and helix, laser power was 0.2～1.5KW, frequency 100～800HZ.
When the little hole of etching and helix were carried out in the inboard wall of cylinder liner stage casing, laser power was 0.5～2.5KW.
When the inboard wall of cylinder liner hypomere was carried out the little hole of etching and helix, laser power was 0.2～2.0KW, pulsewidth 2～6MS, frequency 100～800HZ.
The present invention has following beneficial effect:
1, the equal peak valley R in the surface at inboard wall of cylinder liner epimere of the present invention position
ZDi=2.0～4.5um, core roughness depth R
K=0.5～1.4um, groove mark material ratios Mr
2=65～85%, oil reserve Wei＞=0.3.The surface at position, inboard wall of cylinder liner stage casing is peak valley R all
ZDi=2.0～5.5um, core roughness depth R
K=0.5～1.7um, groove mark material ratios Mr
2=55～90%, oil reserve Wei＞=0.4.The surface at inboard wall of cylinder liner hypomere position is peak valley R all
ZDi=3.0～5.5um, core roughness depth R
K=0.6～1.7um, groove mark material ratios Mr
2=55～70%, oil reserve Wei＞=0.3, the present invention has increased substantially the oil reserve of inboard wall of cylinder liner oil channel structures, has improved lubrication effect.
2, inboard wall of cylinder liner of the present invention surface arranges point-like, the wire lubricant oil road structure of regular distribution, wear-resisting property improves 1～2 times than prior art, oil consumption has reduced 20%～25%, barrel wear drops to 2.5um from 5um, the hydrocarbon particulate emissions reduces 20%～25%, and cylinder sleeve improves 1.4 times working life.
3, the present invention adopts programming software and flexible optical fibre Laser Equipment that the laser stroke is accurately controlled, and by adjusting laser technical parameters, respectively laser stereo lithography is carried out at inboard wall of cylinder liner epimere position, position, stage casing, hypomere position, and method is simple, and validity is high.
Description of drawings
Fig. 1 is cylinder sleeve structural representation of the present invention;
Fig. 2 is laser stereo lithography optical guide schematic representation of the present invention;
Fig. 3 is inboard wall of cylinder liner oil channel structures schematic representation of the present invention;
Among the figure, 1. inboard wall of cylinder liner, 2. reflecting mirror, 3. laser beam, 4. optical fiber.
Embodiment
A kind of inboard wall of cylinder liner oil channel structures and preparation method thereof:
At first, according to inboard wall of cylinder liner 1 epimere, stage casing, the different pattern etching parameters of hypomere fretting wear situation design.
The oil circuit of inboard wall of cylinder liner 1 epimere is comprised of helical and little hole, its helix parameter: a number is 10～100, and pitch is 1～20mm, and the helix degree of depth is 1～100um, and the helix width is 1～100um; Its little hole parameter: the little hole degree of depth 1～100um.The little hole of spiral angle in the horizontal direction is 30 ℃～145 ℃, 20～350/cm of little pit density in the helix
2
Inboard wall of cylinder liner 1 stage casing oil circuit is comprised of helical and little hole, its helix parameter: a number is 10～100, and pitch is 1～15mm, and the helix degree of depth is 1～150um, and the helix width is 1～100um; Little hole parameter: the little hole degree of depth 3～100um.The little hole of spiral angle in the horizontal direction is 30 ℃～145 ℃, 50～350/cm of little pit density in the helix
2
Inboard wall of cylinder liner 1 hypomere oil circuit is comprised of helical and little hole, its helix parameter: a number is 10～100, and pitch is 1～20mm, and the helix degree of depth is 1～100um, and the helix width is 1～100um, little hole parameter; Its little hole degree of depth 3～100um.The little hole of spiral angle in the horizontal direction is 30 ℃～145 ℃, 50～200/cm of little pit density in the helix
2
Then, design parameter according to inboard wall of cylinder liner 1, adopt programming software and flexible optical fibre Laser Equipment that the laser stroke is accurately controlled, adjust laser technical parameters, the laser of laser emission forms laser beam 3 through optical fiber 4 and projects on the reflecting mirror 2, be refracted on the inboard wall of cylinder liner 1 through reflecting mirror 2, respectively laser stereo lithography carried out at inboard wall of cylinder liner 1 epimere position, position, stage casing, hypomere position.
Wherein laser stereo lithography test was divided into for two stages and carries out, phase I is carried out investigative test to default process parameter, under the prerequisite of determining the basic technology scope, carry out the orthogonal test of second stage, laser power, pulsewidth and frequency, basic mode are main process parameter, determine the laser alloying optimal processing parameter according to test result.
Wherein, inboard wall of cylinder liner epimere position laser stereo lithography process parameter is: laser power is 0.2～1.5KW, pulsewidth 2～10MS, and frequency 100～800HZ, basic mode are TM00;
Position, inboard wall of cylinder liner stage casing laser stereo lithography process parameter is: laser power is 0.5～2.5KW, pulsewidth 2～10MS, and frequency 100～1000HZ, basic mode are TM00;
Inboard wall of cylinder liner hypomere position laser stereo lithography process parameter is: laser power is 0.2～2.0KW, pulsewidth 2～6MS, and frequency 100～800HZ, basic mode are TM00.
After determining, the laser stereo lithography parameter adjusts laser optical path, laser stereo lithography optical guide schematic representation such as Fig. 2, and inboard wall of cylinder liner point-like, wire oil-bearing structure macroscopic view schematic representation such as Fig. 3, the surface at prepared inboard wall of cylinder liner epimere position is peak valley R all
ZDi=2.0～4.5um, core roughness depth R
K=0.5～1.4um, groove mark material ratios Mr
2=65～85%, oil reserve Wei＞=0.3.The surface at position, inboard wall of cylinder liner stage casing is peak valley R all
ZDi=2.0～5.5um, core roughness depth R
K=0.5～1.7um, groove mark material ratios Mr
2=55～90%, oil reserve Wei＞=0.4.The surface at inboard wall of cylinder liner hypomere position is peak valley R all
ZDi=3.0～5.5um, core roughness depth R
K=0.6～1.7um, groove mark material ratios Mr
2=55～70%, oil reserve Wei＞=0.3.
Embodiment 1-5, a kind of inboard wall of cylinder liner oil channel structures and preparation method thereof, inboard wall of cylinder liner oil channel structures parameter sees the following form 1; Laser technical parameters sees the following form 2.
Table 1 embodiment inboard wall of cylinder liner oil channel structures parameter
Table 2 embodiment laser technical parameters
It is 0.04～0.05mm/kh that inboard wall of cylinder liner adopts the wear rate of common honing and spongy chromium plating, and oil consumption is 1.0～1.4g/kw.h; Point-like, the wire lubricant oil road structure of the inboard wall of cylinder liner regular distribution in surface of the present invention, wear rate is 0.025～0.03mm/kh, wear-resisting property improves 1～2 times than original, oil consumption has reduced 20%～25%, barrel wear drops to 2.5um from 5um, the hydrocarbon particulate emissions reduces 20%～25%, and this point-like, wire lubricant oil road structure can improve cylinder sleeve and improve 1.4 times working life.
Claims (10)
1. inboard wall of cylinder liner oil channel structures, it is characterized in that: comprise helix and Wei Keng, the described helix degree of depth is 1-150um, and width is 1～100um, and a number is the 10-100 head, and pitch is 1-20mm; Described little hole degree of depth is 3～100um.
2. inboard wall of cylinder liner oil channel structures as claimed in claim 1, it is characterized in that: the helix degree of depth of inboard wall of cylinder liner (1) epimere is 1-100um, and little hole degree of depth is 1-100um; The pitch of the helix in inboard wall of cylinder liner (1) stage casing is 1-15mm; The helix degree of depth of inboard wall of cylinder liner (1) hypomere is 1-100um.
3. inboard wall of cylinder liner oil channel structures as claimed in claim 1 or 2, it is characterized in that: the angle of the little hole of described spiral and substantially horizontal is 30 ℃～145 ℃.
4. inboard wall of cylinder liner oil channel structures as claimed in claim 1 or 2 is characterized in that: 50～350/cm of little pit density in the described helix
2
5. inboard wall of cylinder liner oil channel structures as claimed in claim 4 is characterized in that: 20～350/cm of little pit density in the helix of described inboard wall of cylinder liner (1) epimere
2
6. the preparation method of inboard wall of cylinder liner oil channel structures is characterized in that: the laser of laser emission forms laser beam (3) through optical fiber (4) and projects on the reflecting mirror (2), is refracted to the upper little hole of etching of inboard wall of cylinder liner (1) and helix through reflecting mirror (2).
7. the preparation method of inboard wall of cylinder liner oil channel structures as claimed in claim 6, it is characterized in that: laser power is 0.2-2.5KW, pulsewidth 2～10, frequency 100～1000HZ, basic mode are TM00.
8. the preparation method of inboard wall of cylinder liner oil channel structures as claimed in claim 7, it is characterized in that: when inboard wall of cylinder liner (1) epimere was carried out the little hole of etching and helix, laser power was 0.2～1.5KW, frequency 100～800HZ.
9. the preparation method of inboard wall of cylinder liner oil channel structures as claimed in claim 7, it is characterized in that: when the little hole of etching and helix were carried out in inboard wall of cylinder liner (1) stage casing, laser power was 0.5～2.5KW.
10. the preparation method of inboard wall of cylinder liner oil channel structures as claimed in claim 6, it is characterized in that: when inboard wall of cylinder liner (1) hypomere was carried out the little hole of etching and helix, laser power was 0.2～2.0KW, pulsewidth 2～6, frequency 100～800HZ.
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| CN201210372080.4A CN102878289B (en) | 2012-09-29 | 2012-09-29 | A kind of cylinder sleeve inner wall oil circuit structure and preparation method thereof |
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| CN201210372080.4A CN102878289B (en) | 2012-09-29 | 2012-09-29 | A kind of cylinder sleeve inner wall oil circuit structure and preparation method thereof |
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| CN102878289B CN102878289B (en) | 2016-03-30 |
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Cited By (3)
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| CN104455407A (en) * | 2014-11-03 | 2015-03-25 | 中国船舶重工集团公司第十二研究所 | Cylinder inner wall network oil storage structure manufacturing method |
| CN105215554A (en) * | 2015-10-29 | 2016-01-06 | 无锡桥阳机械制造有限公司 | A kind of laser honing technique |
| CN107687375A (en) * | 2017-07-25 | 2018-02-13 | 北京航空航天大学 | Two stroke Heavy End Aviation Fuel piston engine cylinders cover inner wall laser micro forming structure |
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Cited By (4)
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|---|---|---|---|---|
| CN104455407A (en) * | 2014-11-03 | 2015-03-25 | 中国船舶重工集团公司第十二研究所 | Cylinder inner wall network oil storage structure manufacturing method |
| CN105215554A (en) * | 2015-10-29 | 2016-01-06 | 无锡桥阳机械制造有限公司 | A kind of laser honing technique |
| CN107687375A (en) * | 2017-07-25 | 2018-02-13 | 北京航空航天大学 | Two stroke Heavy End Aviation Fuel piston engine cylinders cover inner wall laser micro forming structure |
| CN107687375B (en) * | 2017-07-25 | 2020-05-05 | 北京航空航天大学 | Method for designing laser micro-modeling structure of inner wall of engine cylinder sleeve |
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| CN102878289B (en) | 2016-03-30 |
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