CN208215084U - A kind of differentiation honing cylinder jacket - Google Patents
A kind of differentiation honing cylinder jacket Download PDFInfo
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- CN208215084U CN208215084U CN201820808587.2U CN201820808587U CN208215084U CN 208215084 U CN208215084 U CN 208215084U CN 201820808587 U CN201820808587 U CN 201820808587U CN 208215084 U CN208215084 U CN 208215084U
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Abstract
The utility model discloses a kind of differentiation honing cylinder jackets, cylinder cover inner hole wall is equipped with the reticulate pattern texture of honing, reticulate pattern texture is in differentiation distribution from top to bottom, network texture includes oil-storage texture and smooth type texture, the texture depth of oil-storage texture is greater than the texture depth of smooth type texture, the functional oil storage region of oil-storage texture position composition cylinder jacket, the smooth transition region of smooth type texture position composition cylinder jacket, cylinder cover inner hole wall is successively set as Ith area from top to bottom, IIth area and IIIth area, Ith area, the reticulate pattern texture in IIth area and IIIth area uses oil-storage texture or smooth type texture, Ith area is different with the reticulate pattern texture in IIth area；The utility model can improve the sliding capability of cylinder cover inner hole wall, keep cylinder cover inner hole wall oil storage uniform, not only reduce oil consumption, reduce coefficient of friction and abrasion loss, the wear-resisting property between cylinder jacket and piston is effectively improved, and then improves the service life of cylinder jacket and the reliability of engine operation.
Description
Technical field
The utility model relates to cylinder liner internal wall reticulate pattern processing technique field more particularly to a kind of differentiation honing cylinders
Set.
Background technique
Cylinder jacket is one of key part of engine, shape be it is columnar structured, when work, is placed in engine body
In cylinder body opening, upper end is fixed by cylinder head, and piston is reciprocating in the inner hole of its cylinder jacket, therefore, in cylinder jacket
The structure on surface directly affects consumption of lubricating oil and the service life of engine.Currently, being equipped with reticulate structure, net on cylinder cover inner hole wall
Line structure is made of reticular texture and top chain-wales, and reticular texture is convenient for lubrication oil, improves that cylinder jacket is actual to hold
Section product, is also beneficial to machine oil and pumps up to the working region on cylinder jacket top, top chain-wales advantageously form high intensity
Oil film, the extra machine oil of cylinder-barrel surface is scraped and is back to crankcase, improves the sliding capability of cylinder surface, increase cylinder
The air-tightness in hole, while consumption of lubricating oil is also greatly lowered, wherein the performance and used life and interior surface of cylinder liner of cylinder jacket
The parameters such as width, depth and the uniformity of reticulate pattern texture it is closely related.
Currently, the processing of the reticulate pattern texture of interior surface of cylinder liner is mainly based on honing technique, honing technique be it is mechanical plus
Honing manufactures reticulate pattern using the pre- thick top gem of a girdle-pendant, the half smart top gem of a girdle-pendant, the smart top gem of a girdle-pendant.But the resulting reticulate pattern texture of honing at present is mostly to homogenize to divide
Cloth, it is inadequate that reticulate pattern texture smoothly will cause oil storage, and reticulate pattern texture is too deep, and it will cause lubricating oil to squeeze out along groove, reduces lubrication effect
Fruit, the abrasion that will cause between cylinder jacket and piston in above-mentioned two situations is big, and cylinder jacket wears no resistance, and not only reduces cylinder
Service life is covered, oil consumption increase can be also further resulted in, or even will cause automobile engine scuffing of cylinder bore and discharge the failures such as exceeded
Occur.
Summary of the invention
The purpose of the utility model is to provide a kind of differentiation honing cylinder jackets, can improve the cunning of cylinder cover inner hole hole wall
Dynamic performance, keeps inner hole hole wall oil storage uniform, not only reduces oil consumption, but also effectively improve the wearability between cylinder jacket and piston
Can, and then improve the service life of cylinder jacket and the reliability of engine operation.
The technical solution adopted in the utility model are as follows:
A kind of differentiation honing cylinder jacket, including cylinder liner body, cylinder liner body are equipped with inner hole, the hole of the inner hole
Wall is equipped with the reticulate pattern texture of honing, and the angle between reticulate pattern and cylinder jacket cross section is 45 ° ± 10 °, and reticulate pattern texture is in poor
Alienation distribution；The parameter of reticulate pattern texture are as follows: 1 μm≤Rz≤7 μm, Rpk≤0.3 μm, 0.2 μm≤Rk≤0.8 μm, 0.8 μm≤Rvk
≤ 2.5 μm, Mr1≤9%, 65%≤Mr2≤90%, Ra≤0.75 μm；Wherein, Rz indicates that average peak valley is high, and Rpk indicates summit
It reduces, Rk indicates core roughness, and Rvk indicates the reduction of the lowest point, and Mr1 indicates the minimum metal material of roughness center profile
Rate, Mr2 indicate that the maximum metal materials rate of roughness center profile, Ra indicate surface roughness；
The reticulate pattern texture includes oil-storage texture and smooth type texture two types, the surface roughness of oil-storage texture
Greater than the surface roughness of smooth type texture, oil-storage texture position constitutes the functional oil storage region of cylinder jacket, smoothly
The smooth transition region of type texture position composition cylinder jacket；The inner hole hole wall be successively set as from top to bottom Ith area, IIth area and
IIIth area, Ith area are cylinder jacket top dead centre region, and IIIth area is cylinder jacket lower dead center region, oil piston ring when piston motion is to top dead centre
Lower ring bank area above be Ith area, the upper ring bank following region of piston top ring is IIIth area when piston motion is to lower dead center, and IIth area is
The reticulate pattern texture type in the region between Ith area and IIIth area, Ith area and IIth area is different.
The parametric texture of the oil-storage texture are as follows: 2 μm≤Rz≤7 μm, Rpk≤0.3 μm, 0.2 μm≤Rk≤0.8 μm,
1.0 μm≤Rvk≤2.5 μm, Mr1≤9%, 65%≤Mr2≤90%, Ra≤0.75 μm, the parametric texture of the smooth type texture
Are as follows: 1 μm≤Rz≤6.5 μm, Rpk≤0.25 μm, 0.2 μm≤Rk≤0.5 μm, 0.8 μm≤Rvk≤1.5 μm, Mr1≤9%, 65%
≤ Mr2≤90%, Ra≤0.63 μm, wherein Rz indicates that average peak valley is high, and Rpk indicates the reduction of summit, and Rk indicates that core is coarse
Degree, Rvk indicate the reduction of the lowest point, and Mr1 indicates that the minimum metal materials rate of roughness center profile, Mr2 indicate roughness center
The maximum metal materials rate of profile, Ra indicate surface roughness.
The basic roughness degree value range of cylinder liner body inner hole hole wall before differentiation honing is 8 μm~12 μ
m。
The material of the cylinder liner body uses Lanzcast iron, bainite ductile iron, carbon steel 45# or carbon steel 20#.
The length in Ith area is 15mm~50mm, and the length in IIth area is 30mm~250mm, and the length in IIIth area is 20mm
~80mm.
The utility model has the following beneficial effects:
(1) by forming inner hole hole wall for the reticulate pattern texture that setting is distributed in differentiation on cylinder cover inner hole hole wall
The sliding transitional region of the functional oil storage regional peace of differentiation distribution, it is rationally distributed, keep cylinder jacket oil storage appropriate and whole oil storage
Uniformly, and then lubricating oil is made to be not easy to be extruded, ensure that the surface lubrication performance of cylinder cover inner hole hole wall, reduces reduction piston
Friction and wear in ring and cylinder jacket, improves the service life of cylinder jacket, ensures the safe and stable and reliable work of engine indirectly
Make；
(2) by the parameter setting to oil-storage texture and smooth type texture, make the coefficient of friction and mill of the utility model
Damage amount is significantly lower than common cylinder jacket, makes coefficient of friction less than 0.1, greatly reduces the friction system between cylinder jacket and piston ring
Several and abrasion loss, extends the service life of cylinder jacket, effectively avoids the generation of the safety accidents such as engine scuffing.
Detailed description of the invention
Fig. 1 is the cross section structure schematic diagram of cylinder jacket in the utility model；
Fig. 2 is the flow chart of the preparation method of the utility model；
Fig. 3 is the coefficient of friction comparison diagram of embodiment one and common cylinder jacket；
Fig. 4 is the abrasion loss comparison diagram of embodiment one and common cylinder jacket；
Fig. 5 is the coefficient of friction comparison diagram of embodiment two and common cylinder jacket；
Fig. 6 is the abrasion loss comparison diagram of embodiment two and common cylinder jacket；
Fig. 7 is the coefficient of friction data figure of embodiment three；
Fig. 8 is the abrasion loss comparison diagram of embodiment three and common cylinder jacket；
Fig. 9 is the coefficient of friction data figure of example IV；
Figure 10 is the abrasion loss comparison diagram of example IV and common cylinder jacket.
Specific embodiment
As shown in Figure 1, the utility model includes cylinder liner body, the material of cylinder liner body is cast iron or carbon steel material,
It is preferred that using Lanzcast iron, bainite ductile iron, carbon steel 45# or carbon steel 20#, cylinder liner body is equipped with inner hole, the hole of inner hole
Wall is equipped with the reticulate pattern texture of honing, and the angle between reticulate pattern and cylinder jacket cross section is 45 ° ± 10 °, and reticulate pattern texture is in poor
Alienation distribution, the parameter of reticulate pattern texture are as follows: 1 μm≤Rz≤7 μm, Rpk≤0.3 μm, 0.2 μm≤Rk≤0.8 μm, 0.8 μm≤Rvk
≤ 2.5 μm, Mr1≤9%, 65%≤Mr2≤90%, Ra≤0.75 μm；Wherein, Rz indicates that average peak valley is high, and Rpk indicates summit
It reduces, Rk indicates core roughness, and Rvk indicates the reduction of the lowest point, and Mr1 indicates the minimum metal material of roughness center profile
Rate, Mr2 indicate that the maximum metal materials rate of roughness center profile, Ra indicate surface roughness；
Reticulate pattern texture in above-mentioned reticulate pattern texture parameter range includes oil-storage texture and smooth type texture two types,
The surface roughness of oil-storage texture is greater than the surface roughness of smooth type texture, and oil-storage texture position constitutes cylinder jacket
Functional oil storage region, smooth type texture position constitute cylinder jacket smooth transition region；The hole wall of inner hole from up to
Under be successively set as Ith area, IIth area and three, IIIth area region, Ith area is cylinder jacket top dead centre region, and IIIth area is cylinder jacket lower dead center area
Domain, the lower ring bank area above of oil piston ring is Ith area when piston motion is to top dead centre, piston top ring when piston motion is to lower dead center
Upper ring bank following region be IIIth area, region of IIth area between Ith area and IIIth area；The length in Ith area is 15mm~50mm, IIth area
Length is 30mm~250mm, and the length in IIIth area is 20mm~80mm.Ith area, the trizonal reticulate pattern texture in IIth area and IIIth area are the top gem of a girdle-pendant
The ultra micro reticulate pattern of ultra micro reticulate pattern made of mill, these three regions uses differentiation area distribution, the i.e. net in Ith area, IIth area and IIIth area
Line texture is all made of oil-storage texture or smooth type texture, and Ith area is different with the reticulate pattern texture in IIth area.
There are following four kinds combinations for the grain distribution in Ith area, IIth area and IIIth area:
The hole wall in (1) I area and IIIth area uses smooth type texture, and II area's hole wall uses oil-storage texture；
The hole wall in (2) I areas and IIIth area uses oil-storage texture, and II area's hole wall uses smooth type texture；
(3) I area's hole walls use oil-storage texture, and the hole wall in IIth area and IIIth area uses smooth type texture；
(4) I area's hole walls use smooth type texture, and the hole wall in IIth area and IIIth area uses oil-storage texture.
The parametric texture of oil-storage texture is set are as follows: and 2 μm≤Rz≤7 μm, Rpk≤0.3 μm, 0.2 μm≤Rk≤0.8 μm,
1.0 μm≤Rvk≤2.5 μm, Mr1≤9%, 65%≤Mr2≤90%, Ra≤0.75 μm, the parametric texture setting of smooth type texture
Are as follows: 1 μm≤Rz≤6.5 μm, Rpk≤0.25 μm, 0.2 μm≤Rk≤0.5 μm, 0.8 μm≤Rvk≤1.5 μm, Mr1≤9%, 65%
≤ Mr2≤90%, Ra≤0.63 μm, wherein Rz indicates that average peak valley is high, and Rpk indicates the reduction of summit, and Rk indicates that core is coarse
Degree, Rvk indicate the reduction of the lowest point, and Mr1 indicates that the minimum metal materials rate of roughness center profile, Mr2 indicate roughness center
The maximum metal materials rate of profile, Ra indicate surface roughness；Basic roughness degree of the inner hole hole wall before differentiation honing takes
Value ranges preferably from 8 μm~12 μm；Inner hole wall has the reticulate pattern texture of differentiation honing after microhoning inner hole.
The utility model in order to better understand with reference to the accompanying drawing does furtherly the technical solution of the utility model
It is bright.
Embodiment one:
In the present embodiment, the value range of basic roughness degree of the hole wall of inner hole before honing is preferably 10 μm~12
μm, Ith area is cylinder jacket top dead centre region, and the overall dimensions length in Ith area is 40mm；IIth area region between Ith area and IIIth area, IIth area
Overall dimensions length be 140mm, IIIth area be cylinder jacket lower dead center region, III area's overall dimensions length be 50mm；
The reticulate pattern texture honing of the hole wall in Ith area and IIIth area is the deeper oil-storage texture of depth, the reticulate pattern line of II area's hole wall
Managing honing is the shallower smooth type texture of depth；
The reticulate pattern parametric texture of Ith area honing are as follows: 2 μm≤Rz≤7 μm, Rpk≤0.3 μm, 0.2 μm≤Rk≤0.8 μm, 1.0 μ
M≤Rvk≤2.5 μm, Mr1≤9%, 65%≤Mr2≤90%, Ra≤0.75 μm；
The reticulate pattern parametric texture of IIth area honing are as follows: 1 μm≤Rz≤6.5 μm, Rpk≤0.25 μm, 0.2 μm≤Rk≤0.5 μm,
0.8 μm≤Rvk≤1.5 μm, Mr1≤9%, 65%≤Mr2≤90%, Ra≤0.63 μm；
The reticulate pattern parametric texture of IIIth area honing are as follows: 2 μm≤Rz≤7 μm, Rpk≤0.3 μm, 0.2 μm≤Rk≤0.8 μm, 1.0
μm≤Rvk≤2.5 μm, and Mr1≤9%, 65%≤Mr2≤90%, Ra≤0.75 μm；
Wherein, Rz indicates that average peak valley is high, and Rpk indicates the reduction of summit, and Rk indicates core roughness, and Rvk indicates the lowest point
Reduction, Mr1 indicate roughness center profile minimum metal materials rate, Mr2 indicate roughness center profile maximum metal
Materials rate, Ra indicate surface roughness.
As shown in Fig. 2, the preparation method of the cylinder jacket in the present embodiment the following steps are included:
A, cylinder liner blank is cast: preparing Lanzcast iron casting using wet coating material centrifugal casting technique；
B, it machines: machining and preliminary Honing process, concrete technology flow process is carried out to cylinder liner blank are as follows:
- heavy boring inner hole-is slightly cut to repair-thick top gem of a girdle-pendant inner hole-fine turning outer circle of-half fine turning outer circle of right boring inner hole-；
C, honing: inputting honing parameters in the numerical control honing device of Z800-0180 model, and with numerical control honing device pair
The inner hole wall of cylinder jacket obtained by step B carries out microhoning processing；Specifically includes the following steps:
C1, selection honing abrasive belt corresponding with Ith area, IIth area and IIIth area, and honing abrasive belt is adhered on emery stick plate, it assembles
At honing head, installation to numerical control honing device；
C2, the machined parameters that Ith area, IIth area and IIIth area are set in numerical control honing device；
C3, numerical control honing device carry out microhoning processing according to inner hole hole wall of the set parametric texture to cylinder jacket, make gas
Cylinder sleeve bore hole wall has the reticulate pattern texture of differentiation honing, improves the wearability of cylinder jacket and piston ring.
In the present embodiment, reticulate pattern uses differentiation area distribution, keeps upper and lower part region ultra micro reticulate pattern texture deep, oil storage
Sufficiently, central region ultra micro reticulate pattern texture is smooth, and oil storage is appropriate, and whole oil storage is uniform, and lubricating oil is not easy to be extruded, and makes cylinder sleeve
Inner surface is smooth, as shown in Fig. 3 and Fig. 4 experimental data, under the load effect of 50N and 100N, and the friction system of the utility model
Several and abrasion loss is significantly lower than common cylinder jacket, reduces the frictional wear amount between piston ring and inner hole, keeps coefficient of friction small
In 0.1, the coefficient of friction and abrasion loss between cylinder jacket and piston ring are greatly reduced, the service life of cylinder jacket is extended,
Effectively avoid the generation of the safety accidents such as engine scuffing.
Embodiment two:
In the present embodiment, liner body is by the cylinder of the bainite ductile iron casting prepared using wet coating material centrifugal casting technique
Set blank is process, and the value range of basic roughness degree of the inner hole hole wall before honing is preferably 10 μm~12 μm, and Ith area is
Cylinder jacket top dead centre region, the overall dimensions length in Ith area are 40mm；IIth area region between Ith area and IIIth area, the whole ruler in IIth area
Modest ability degree is 140mm, and IIIth area is cylinder jacket lower dead center region, and III area's overall dimensions length is 50mm；
The reticulate pattern of the hole wall in the reticulate pattern texture honing of the hole wall in the Ith area oil-storage texture deeper for depth, IIth area and IIIth area
Texture honing is the shallower smooth type texture of depth；
The reticulate pattern parametric texture of Ith area honing are as follows: 2 μm≤Rz≤7 μm, Rpk≤0.3 μm, 0.2 μm≤Rk≤0.8 μm, 1.0 μ
M≤Rvk≤2.5 μm, Mr1≤9%, 65%≤Mr2≤90%, Ra≤0.75 μm；
The reticulate pattern parametric texture of IIth area honing are as follows: 1 μm≤Rz≤6.5 μm, Rpk≤0.25 μm, 0.2 μm≤Rk≤0.5 μm,
0.8 μm≤Rvk≤1.5 μm, Mr1≤9%, 65%≤Mr2≤90%, Ra≤0.63 μm；
The reticulate pattern parametric texture of IIIth area honing are as follows: 1 μm≤Rz≤6.5 μm, Rpk≤0.25 μm, 0.2 μm≤Rk≤0.5 μm,
0.8 μm≤Rvk≤1.5 μm, Mr1≤9%, 65%≤Mr2≤90%, Ra≤0.63 μm；
Wherein, Rz indicates that average peak valley is high, and Rpk indicates the reduction of summit, and Rk indicates core roughness, and Rvk indicates the lowest point
Reduction, Mr1 indicate roughness center profile minimum metal materials rate, Mr2 indicate roughness center profile maximum metal
Materials rate, Ra indicate surface roughness.
In the present embodiment, reticulate pattern uses differentiation area distribution, keeps upper and lower part region ultra micro reticulate pattern texture deep, oil storage
Sufficiently, central region ultra micro reticulate pattern texture is smooth, and oil storage is appropriate, and whole oil storage is uniform, and lubricating oil is not easy to be extruded, and makes cylinder sleeve
Inner surface is smooth, as shown in Fig. 5 and Fig. 6 experimental data, under the load effect of 50N and 100N, and the friction system of the utility model
Several and abrasion loss is significantly lower than common cylinder jacket, reduces the frictional wear amount between piston ring and inner hole, keeps coefficient of friction small
In 0.1, extends the service life of cylinder jacket, effectively avoid the generation of the safety accidents such as engine scuffing.
Embodiment three:
In the present embodiment, liner body using the cylinder liner blank of carbon steel 45# material by being process, and inner hole hole wall is in the top gem of a girdle-pendant
Basic roughness degree value range before mill is preferably 10 μm~12 μm, and Ith area is cylinder jacket top dead centre region, the whole ruler in Ith area
Modest ability degree is 25mm；IIth area region between Ith area and IIIth area, the overall dimensions length in IIth area are 100mm, and IIIth area is under cylinder jacket
Stop region, III area's overall dimensions length are 40mm；
The reticulate pattern texture honing of the hole wall in Ith area and IIIth area is the deeper oil-storage texture of depth, the reticulate pattern line of II area's hole wall
Managing honing is the shallower smooth type texture of depth；
The reticulate pattern parametric texture of Ith area honing are as follows: 2 μm≤Rz≤7 μm, Rpk≤0.3 μm, 0.2 μm≤Rk≤0.8 μm, 1.0 μ
M≤Rvk≤2.5 μm, Mr1≤9%, 65%≤Mr2≤90%, Ra≤0.75 μm；
The reticulate pattern parametric texture of IIth area honing are as follows: 1 μm≤Rz≤6.5 μm, Rpk≤0.25 μm, 0.2 μm≤Rk≤0.5 μm,
0.8 μm≤Rvk≤1.5 μm, Mr1≤9%, 65%≤Mr2≤90%, Ra≤0.63 μm；
The reticulate pattern parametric texture of IIIth area honing are as follows: 2 μm≤Rz≤7 μm, Rpk≤0.3 μm, 0.2 μm≤Rk≤0.8 μm, 1.0
μm≤Rvk≤2.5 μm, and Mr1≤9%, 65%≤Mr2≤90%, Ra≤0.75 μm；
Wherein, Rz indicates that average peak valley is high, and Rpk indicates the reduction of summit, and Rk indicates core roughness, and Rvk indicates the lowest point
Reduction, Mr1 indicate roughness center profile minimum metal materials rate, Mr2 indicate roughness center profile maximum metal
Materials rate, Ra indicate surface roughness.
In the present embodiment, reticulate pattern uses differentiation area distribution, keeps upper and lower part region ultra micro reticulate pattern texture deep, oil storage
Sufficiently, central region ultra micro reticulate pattern texture is smooth, and oil storage is appropriate, and whole oil storage is uniform, and lubricating oil is not easy to be extruded, and makes cylinder sleeve
Inner surface is smooth, as shown in Fig. 7 and Fig. 8 experimental data, under the load effect of 50N and 100N, and the friction system of the utility model
Several and abrasion loss is significantly lower than common cylinder jacket, reduces the frictional wear amount between piston ring and inner hole, keeps coefficient of friction small
In 0.1, extends the service life of cylinder jacket, effectively avoid the generation of the safety accidents such as engine scuffing.
Example IV:
In the present embodiment, liner body using the cylinder liner blank of carbon steel 20# material by being process, and inner hole hole wall is in the top gem of a girdle-pendant
The value range of basic roughness degree before mill is preferably 10 μm~12 μm, and Ith area is cylinder jacket top dead centre region, the entirety in Ith area
Dimensions length is 25mm；IIth area region between Ith area and IIIth area, the overall dimensions length in IIth area are 100mm, and IIIth area is cylinder jacket
Lower dead center region, III area's overall dimensions length are 40mm；
The reticulate pattern texture honing of the hole wall in Ith area and IIIth area is the shallower smooth type texture of depth, the reticulate pattern line of II area's hole wall
Manage the deeper oil-storage texture of honing depth；
The reticulate pattern parametric texture of Ith area honing are as follows: 1 μm≤Rz≤6.5 μm, Rpk≤0.25 μm, 0.2 μm≤Rk≤0.5 μm,
0.8 μm≤Rvk≤1.5 μm, Mr1≤9%, 65%≤Mr2≤90%, Ra≤0.63 μm；
The reticulate pattern parametric texture of IIth area honing are as follows: 2 μm≤Rz≤7 μm, Rpk≤0.3 μm, 0.2 μm≤Rk≤0.8 μm, 1.0
μm≤Rvk≤2.5 μm, and Mr1≤9%, 65%≤Mr2≤90%, Ra≤0.75 μm；
The reticulate pattern parametric texture of IIIth area honing are as follows: 1 μm≤Rz≤6.5 μm, Rpk≤0.25 μm, 0.2 μm≤Rk≤0.5 μm,
0.8 μm≤Rvk≤1.5 μm, Mr1≤9%, 65%≤Mr2≤90%, Ra≤0.63 μm；
Wherein, Rz indicates that average peak valley is high, and Rpk indicates the reduction of summit, and Rk indicates core roughness, and Rvk indicates the lowest point
Reduction, Mr1 indicate roughness center profile minimum metal materials rate, Mr2 indicate roughness center profile maximum metal
Materials rate, Ra indicate surface roughness.
In the present embodiment, reticulate pattern uses differentiation area distribution, keeps upper and lower part region ultra micro reticulate pattern texture deep, oil storage
Sufficiently, central region ultra micro reticulate pattern texture is smooth, and oil storage is appropriate, and whole oil storage is uniform, and lubricating oil is not easy to be extruded, and makes cylinder sleeve
Inner surface is smooth, as shown in Fig. 9 and Figure 10 experimental data, under the load effect of 50N and 100N, and the friction system of the utility model
Several and abrasion loss is significantly lower than common cylinder jacket, reduces the frictional wear amount between piston ring and inner hole, keeps coefficient of friction small
In 0.1, extends the service life of cylinder jacket, effectively avoid the generation of the safety accidents such as engine scuffing.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that, still may be used
To modify to technical solution documented by previous embodiment, or some or all of the technical features are equal
Replacement, and these are modified or replaceed, the model for technical solution of the embodiment of the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (5)
1. a kind of differentiation honing cylinder jacket, including cylinder liner body, cylinder liner body is equipped with inner hole, it is characterised in that: institute
The hole wall for stating inner hole is equipped with the reticulate pattern texture of honing, and the angle between reticulate pattern and cylinder jacket cross section is 45 ° ± 10 °, and net
Line texture is distributed in differentiation；The parameter of reticulate pattern texture are as follows: 1 μm≤Rz≤7 μm, Rpk≤0.3 μm, 0.2 μm≤Rk≤0.8 μm,
0.8 μm≤Rvk≤2.5 μm, Mr1≤9%, 65%≤Mr2≤90%, Ra≤0.75 μm；Wherein, Rz indicates that average peak valley is high, Rpk
Indicate the reduction of summit, Rk indicates core roughness, and Rvk indicates the reduction of the lowest point, and Mr1 indicates the minimum of roughness center profile
Metal material rate, Mr2 indicate that the maximum metal materials rate of roughness center profile, Ra indicate surface roughness；
The reticulate pattern texture includes oil-storage texture and smooth type texture two types, and the surface roughness of oil-storage texture is greater than
The surface roughness of smooth type texture, oil-storage texture position constitute the functional oil storage region of cylinder jacket, smooth type line
Manage the smooth transition region that position constitutes cylinder jacket；The inner hole hole wall is successively set as Ith area, IIth area and III from top to bottom
Area, Ith area are cylinder jacket top dead centre region, and IIIth area is cylinder jacket lower dead center region, oil piston ring when piston motion is to top dead centre
Lower ring bank area above is Ith area, and the upper ring bank following region of piston top ring is IIIth area when piston motion is to lower dead center, and IIth area is I
The reticulate pattern texture type in the region between area and IIIth area, Ith area and IIth area is different.
2. differentiation honing cylinder jacket according to claim 1, it is characterised in that: the parametric texture of the oil-storage texture
Are as follows: 2 μm≤Rz≤7 μm, Rpk≤0.3 μm, 0.2 μm≤Rk≤0.8 μm, 1.0 μm≤Rvk≤2.5 μm, Mr1≤9%, 65%≤
Mr2≤90%, Ra≤0.75 μm, the parametric texture of the smooth type texture are as follows: 1 μm≤Rz≤6.5 μm, Rpk≤0.25 μm, 0.2
μm≤Rk≤0.5 μm, and 0.8 μm≤Rvk≤1.5 μm, Mr1≤9%, 65%≤Mr2≤90%, Ra≤0.63 μm, wherein Rz is indicated
Average peak valley is high, and Rpk indicates the reduction of summit, and Rk indicates core roughness, and Rvk indicates the reduction of the lowest point, and Mr1 indicates roughness
The minimum metal materials rate of center profile, Mr2 indicate that the maximum metal materials rate of roughness center profile, Ra indicate rough surface
Degree.
3. differentiation honing cylinder jacket according to claim 2, it is characterised in that: the cylinder liner body is in the differentiation top gem of a girdle-pendant
The basic roughness degree value range of inner hole hole wall is 8 μm~12 μm before mill.
4. differentiation honing cylinder jacket according to claim 2, it is characterised in that: the material of the cylinder liner body uses
Lanzcast iron, bainite ductile iron, carbon steel 45# or carbon steel 20#.
5. differentiation honing cylinder jacket according to claim 2, it is characterised in that: the length in Ith area be 15mm~
50mm, the length in IIth area are 30mm~250mm, and the length in IIIth area is 20mm~80mm.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108747798A (en) * | 2018-05-29 | 2018-11-06 | 中原内配集团股份有限公司 | A kind of differentiation honing cylinder jacket and preparation method thereof |
| CN110985225A (en) * | 2019-11-06 | 2020-04-10 | 帝伯爱尔株式会社 | Cylinder sleeve and cylinder hole |
| CN112139885A (en) * | 2020-10-11 | 2020-12-29 | 焦作大学 | Cylinder sleeve surface treatment device and method |
-
2018
- 2018-05-29 CN CN201820808587.2U patent/CN208215084U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108747798A (en) * | 2018-05-29 | 2018-11-06 | 中原内配集团股份有限公司 | A kind of differentiation honing cylinder jacket and preparation method thereof |
| CN108747798B (en) * | 2018-05-29 | 2023-09-12 | 中原内配集团股份有限公司 | Differentiated honing cylinder sleeve and preparation method thereof |
| CN110985225A (en) * | 2019-11-06 | 2020-04-10 | 帝伯爱尔株式会社 | Cylinder sleeve and cylinder hole |
| CN110985225B (en) * | 2019-11-06 | 2022-03-04 | 帝伯爱尔株式会社 | Cylinder sleeve and cylinder hole |
| US11680537B2 (en) | 2019-11-06 | 2023-06-20 | Tpr Co., Ltd. | Cylinder liner and cylinder bore |
| CN112139885A (en) * | 2020-10-11 | 2020-12-29 | 焦作大学 | Cylinder sleeve surface treatment device and method |
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