CN204627763U - The anti-wear low speed engine cylinder sleeve of a kind of modified model - Google Patents
The anti-wear low speed engine cylinder sleeve of a kind of modified model Download PDFInfo
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- CN204627763U CN204627763U CN201520313390.8U CN201520313390U CN204627763U CN 204627763 U CN204627763 U CN 204627763U CN 201520313390 U CN201520313390 U CN 201520313390U CN 204627763 U CN204627763 U CN 204627763U
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- pit
- liner body
- group
- cylinder sleeve
- low speed
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Abstract
The utility model proposes the anti-wear low speed engine cylinder sleeve of a kind of modified model, the inner side surface of liner body is laid with multiple pit group, and pit group comprises multiple pit along liner body axially-aligned; The length of pit group is less than the axial thickness of rectangular cross-section piston ring; Pit group forms many group pit rows, and multiple pit group along liner body circumferential array is drawn together in pit package; Many groups pit row arranges along the parallel to an axis of liner body; The pit group of adjacent pit row is staggeredly set.The pit group that pit is formed can reduce the area of contact of piston ring and liner body inner side surface, reduces frictional force therebetween; Pit can be used as the containing groove of accommodating lubricant oil, and pit place place and periphery thereof all can have lubricant oil to distribute, and the inner side surface of liner body easily forms oil film, reduces friction further, and can guarantee that liner body inner side surface there will not be local friction's high temperature; Pit can be used as the containing groove of accommodating particle, avoids particle to carry out the wearing and tearing such as scratch to liner body etc.
Description
Technical field
The utility model relates to engine components field, is specifically related to the anti-wear low speed engine cylinder sleeve of a kind of modified model.
Background technique
The inner side surface of cylinder sleeve of engine due to the effect by high-temperature high-pressure fuel gas, and with the piston contact of high-speed motion and be very easily subject to physical damage.The phenomenon of the physical damage of cylinder sleeve mainly comprises following several:
Conventional contact wearing and tearing (normal wear): Conventional contact wearing and tearing are that piston ring and cylinder sleeve of engine minute surface rub and cause, also referred to as fretting wear.The greatest wear position of cylinder sleeve of engine minute surface is the position of piston when top dead center near first ring, often forms an obvious step.Because in this position, piston ring is maximum to cylinder sleeve of engine minute surface pressure, adds that the temperature of engine cylinder set upper side is higher, the wear resistance of metal declines, and meanwhile, piston is zero in top dead center hourly velocity, oil film is then not easy to be formed, so the basifacial wearing and tearing of cylinder sleeve of engine mirror are also larger.
Abrasive wear: abrasive wear is more containing dust owing to sucking in air, or serious carbon distribution causes.Dust sucks from top, and carbon distribution is also formed on top, so cylinder sleeve of engine minute surface Upper wear is larger.Machine oil gets rid of from the bottom up, and hard particulate is affected by gravity effect, and thus the wearing and tearing of cylinder sleeve of engine bottom are more remarkable.The feature of abrasive wear be from cylinder sleeve of engine minute surface along piston movement direction uniform straight parallel wire pull vestige.
Scuff wear: the reason of scuff wear mainly produces when lack of lubrication.Piston and piston ring do high speed to-and-fro motion in cylinder sleeve of engine minute surface.Lack of lubrication, can not form oil film between working surface, and both rubbing surfaces just have extremely small part metals directly to contact, and the high heat in the local due to friction formation is fallen apart when not walking and accumulate to a certain extent and the two will be made melting adhered.Now, if oil film recovers in time, the effect of just capable of washing and cooling, makes these smallly melt partial exfoliation and not expand; If oil film recovers slow, melt just expansion, cause abnormal scuff wear in very large range occurs, that is usual so-called scuffing of cylinder bore.Scuff wear generally occurs in cylinder sleeve of engine minute surface top near first ring at top dead center position, the metal melting adhesion of local with the groove mark of uneven broken edge and fold.Pull-cylinder phenomena also easily occur in without break-in internal-combustion engine immediately loaded-up when produce.Because comparatively thick without the I. C. engine cylinder sleeve minute surface of break-in, oil film is not easily formed, and small Metal Contact often occurs for cylinder sleeve of engine minute surface and piston face high spot, causes scuff wear thus, even kills phenomenon.
Aforementioned all wearing and tearing all cause serious infringement to cylinder sleeve, greatly reduce the working life of cylinder sleeve, and such problems demand effectively solves.
Given this, inventor furthers investigate the problems referred to above, then has this case to produce.
Model utility content
The purpose of this utility model is to provide one effectively can prevent Conventional contact wearing and tearing, abrasive wear and scuff wear, greatly increase the service life, and piston power exports efficiently smooth and easy, the anti-wear low speed engine cylinder sleeve of practical modified model.
In order to achieve the above object, the utility model adopts such technological scheme:
The anti-wear low speed engine cylinder sleeve of a kind of modified model, comprise liner body, the inner side surface of described liner body is laid with multiple pit group, and described pit group comprises multiple pit along described liner body axially-aligned; The length of described pit group is less than the axial thickness of rectangular cross-section piston ring; Described pit group forms many group pit rows, and multiple described pit group along described liner body circumferential array is drawn together in described pit package; Many groups of described pit rows arrange along the parallel to an axis of described liner body; The pit group of adjacent described pit row is staggeredly set.
Above-mentioned pit is circular or oval.
The oval major axis of above-mentioned pit and the axis being parallel of above-mentioned liner body are arranged.
The oval major axis of above-mentioned pit and the axis of above-mentioned liner body have angle.
The edge of opening of above-mentioned pit has chamfering.
Inner side surface at the bottom of the hole of above-mentioned pit forms level and smooth same cambered surface with inside sidewalls face, hole.
In above-mentioned pit row, the spacing between adjacent above-mentioned pit group is less than or equal to the size of described pit group on the direction that described pit row extends.
After adopting technique scheme, the anti-wear low speed engine cylinder sleeve of modified model of the present utility model, break through the structural form of traditional cylinder sleeve, the pit group that pit is formed can reduce the area of contact of rectangular cross section piston ring (the flat ring of the rectangle for low speed engine) and liner body inner side surface, reduce frictional force therebetween, and then protect from the most direct anti-wear angle liner body and rectangular cross section piston ring, and it is efficiently smooth and easy that piston is run; Pit can be used as the containing groove of the lubricant oil such as accommodating machine oil, pit place place and periphery thereof all can have lubricant oil to distribute, the inner side surface of liner body is made easily to form oil film, wearing and tearing between further minimizing rectangular cross section piston ring and liner body, with the smooth and easy Effec-tive Function being beneficial to piston, and the uniformity of oil film can guarantee that liner body inner side surface there will not be local friction's high temperature, avoids scuff wear; Pit can be used as the containing groove of accommodating particle, can, by the various particle storages in liner body, avoid particle to carry out the wearing and tearing such as scratch to liner body etc.Further, comprise multiple pit row, and the pit of adjacent pit row is staggered, makes pit straight uniform be distributed on liner body inner side surface, more evenly effectively reduces friction area and carry out cloth oil.Compared with prior art, the anti-wear low speed engine cylinder sleeve of modified model of the present utility model, it effectively can prevent Conventional contact wearing and tearing, abrasive wear and scuff wear, greatly increases the service life, and piston power exports efficiently smooth and easy, practical.
Accompanying drawing explanation
Fig. 1 is the part plan structural representation of the utility model first mode of execution;
Fig. 2 is the part plan structural representation of the utility model second mode of execution;
Fig. 3 is the part plan structural representation of the utility model the 3rd mode of execution;
Fig. 4 is the broken section structural representation of the utility model using state;
Fig. 5 is the structure for amplifying schematic diagram of local A in Fig. 4.
In figure:
1-liner body 11-pit
111-chamfering 112-cheats end inner side surface
113-cheats inside sidewalls face 10-pit group
100-pit is arranged
2-rectangular cross-section piston ring.
Embodiment
In order to explain the technical solution of the utility model further, be described in detail below by specific embodiment.
The anti-wear low speed engine cylinder sleeve of a kind of modified model of the present utility model, as Figure 1-5, comprises liner body 1.
The inner side surface of liner body 1 is laid with multiple pit group 10, and pit group 10 comprises multiple pit 11 along liner body 1 axially-aligned; The length of pit group 10 is less than the axial thickness of rectangular cross-section piston ring 2; Pit group 10 forms many group pit rows 100, and pit row 100 comprises multiple pit group 10 along liner body 1 circumferential array; Many groups pit row 100 arranges along the parallel to an axis of liner body 1; The pit group 10 of adjacent pit row 100 is staggeredly set.Like this, pit group 10 can cover completely by rectangular cross-section piston ring 2 on axial thickness, still can play independent sealed effect, more can match with another rectangular cross-section piston ring 2 and realize effective hermetic seal, in esse oil ring (not shown) also can to carrying out certain hermetic seal; And pit 11 size is little, and distribution is more even, effectively can receive, and have the surface tension because of oil droplet to the oil droplet of the lubricant oil such as machine oil, has the opening that part oil droplet protrudes pit 11, is convenient to rectangular cross-section piston ring 2 sucking-off and scrapes carry out cloth oil.The cloth oil of the lubricant oil such as machine oil can be carried out on the inner side surface of liner body 1 when rectangular cross-section piston ring 2 matches move upward with oil ring, and parts of lubricating oil can be stored in pit 11, by the lubricant oil sucking-off stored in pit 11 or part can be scraped when rectangular cross-section piston ring 2 matches move downward with oil ring, the inner side surface making lubricant oil evenly be laid in liner body 1 forms oil film, no matter namely rectangular cross-section piston ring 2 matches with oil ring and moves upward or move downward the inner side surface that enough lubricant oil is distributed on liner body 1.And further, comprise multiple pit row 10, and the pit 11 of adjacent pit row 10 is staggered, makes pit 11 straight uniform be distributed on liner body 1 inner side surface, more evenly effectively reduce friction area and carry out cloth oil, the motion steady and smooth more of piston (not shown).In actual use, the pit group 10 that pit 11 is formed can reduce the area of contact of rectangular cross section piston ring (the flat ring of the rectangle for low speed engine) 2 and liner body 1 inner side surface, reduce frictional force therebetween, and then protect from the most direct anti-wear angle liner body 1 and rectangular cross section piston ring 2, and it is efficiently smooth and easy that piston is run; Pit 11 can be used as the containing groove of the lubricant oil such as accommodating machine oil, pit place place and periphery thereof all can have lubricant oil to distribute, the inner side surface of liner body 1 is made easily to form oil film, wearing and tearing between further minimizing rectangular cross section piston ring 2 and liner body 1, with the smooth and easy Effec-tive Function being beneficial to piston, and the uniformity of oil film can guarantee that liner body 1 inner side surface there will not be local friction's high temperature, avoids scuff wear; Pit 11 can be used as the containing groove of accommodating particle, can, by the various particle storages in liner body 1, avoid particle to carry out the wearing and tearing such as scratch to liner body 1 etc.
Preferably, pit 11 is circular or oval.Such structure is convenient to shaping and can not be formed and cause to rectangular cross section piston ring 2 and oil ring etc. the wedge angle hung up.
Preferably, the oval major axis of pit 11 and the axis being parallel of liner body 1 are arranged.Like this, at liner body 1 axially, pit 11 is longer, is beneficial to the contact slide of taking advantage of a situation of rectangular cross section piston ring 2 and oil ring etc., reduces friction further.
Preferably, the oval major axis of pit 11 and the axis of liner body 1 have angle.This structure can form the oblique Line of contact of several angle with rectangular cross section piston ring 2 and oil ring etc., rectangular cross section piston ring 2 and oil ring etc. can be avoided directly to be hurt along the boundary slip of pit 11, or directly collide with the edge of pit 11, hinder the motion of piston.The concrete angle of angle can carry out adjusting and designing according to actual requirement, as can be 5 °, 10 °, 15 °, 20 °, 25 °, 30 °, 35 °, 40 ° or 45 °.
In order to avoid rectangular cross section piston ring 2 and oil ring etc. to be hurt by the edge of pit 11 further, and do not hinder the motion of piston, preferably, the edge of opening of pit 11 has chamfering 111.In actual use, the edge of opening that rectangular cross section piston ring 2 and oil ring etc. can have a chamfering 111 at pit 11 is taken advantage of a situation and is slipped over.Chamfering 111 specifically can be rounded corner, and effect of taking advantage of a situation is more excellent.
Preferably, inner side surface 112 at the bottom of the hole of pit 11 forms level and smooth same cambered surface with inside sidewalls face 113, hole.Such structure can make the oil droplet of the lubricant oil such as machine oil be only freely be contained in pit 11 by effects such as absorption and surface tension, be formed into there being the circulation to substitute oil stream, guarantee the effectively fresh of lubricant oil, there will not be in remaining between certain face and face corner angle all the time and cannot flow out, because impure or corrosive goods confrontation liner body 1 cause corrosion to wait situation about damaging.
Preferably, in pit row 10, the spacing between adjacent pit 11 is less than or equal to the size of pit 11 on the direction that pit row 10 extends.Namely the pit 11 of row's pit row 10 and the corresponding surface territory of rectangular cross section piston ring 2 and oil ring etc. is gone up, the pit 11 arranging 10 with next row pit has equitant part with the corresponding surface territory of rectangular cross section piston ring 2 and oil ring etc., this structure makes the side face of whole rectangular cross section piston ring 2 and oil ring etc. have pit 11 corresponding, can guarantee that the side face of rectangular cross section piston ring 2 and oil ring etc. is subject to reducing the effect of friction area uniformly, avoid the side face local excessive of rectangular cross section piston ring 2 and oil ring etc. to wear and tear, run smooth and easy.
The anti-wear low speed engine cylinder sleeve of modified model of the present utility model, the spacing etc. that the quantity of pit row pits group, the quantity of pit row and adjacent pit are arranged all can be carried out adjusting and designing according to actual requirement; Hole end inner side surface also can carry out adjusting and designing according to actual requirement with the concrete form in inside sidewalls face, hole; The concrete form, size etc. of chamfering also can carry out adjusting and designing according to actual requirement; The concrete setting direction of the major axis of oblong pits can carry out adjusting and designing according to actual requirement; The concrete shape of pit, size, spacing, quantity and distribution form etc. all can be carried out adjusting and designing according to actual requirement; The size of pit group, quantity, the quantity of pit group pits and the spacing etc. of adjacent pit group all can be carried out adjusting and designing according to actual requirement, and the quantity of pit group pits can be 3-10, specifically can be 3,4,5,6,7,8,9 or 10; The main body of liner body is preferably existing structure, but can be cooperation the technical solution of the utility model and do adaptive structural adjustment.
Product form of the present utility model is not limited to this case diagram and embodiment, and anyone carries out suitable change or the modification of similar thinking to it, all should be considered as not departing from patent category of the present utility model.
Claims (7)
1. the anti-wear low speed engine cylinder sleeve of modified model, comprises liner body, it is characterized in that: the inner side surface of described liner body is laid with multiple pit group, and described pit group comprises multiple pit along described liner body axially-aligned; The length of described pit group is less than the axial thickness of rectangular cross-section piston ring; Described pit group forms many group pit rows, and multiple described pit group along described liner body circumferential array is drawn together in described pit package; Many groups of described pit rows arrange along the parallel to an axis of described liner body; The pit group of adjacent described pit row is staggeredly set.
2. the anti-wear low speed engine cylinder sleeve of a kind of modified model according to claim 1, is characterized in that: above-mentioned pit is for circular or oval.
3. the anti-wear low speed engine cylinder sleeve of a kind of modified model according to claim 2, is characterized in that: the oval major axis of above-mentioned pit and the axis being parallel of above-mentioned liner body are arranged.
4. the anti-wear low speed engine cylinder sleeve of a kind of modified model according to claim 2, is characterized in that: the oval major axis of above-mentioned pit and the axis of above-mentioned liner body have angle.
5. the anti-wear low speed engine cylinder sleeve of a kind of modified model according to any one of claim 1-4, is characterized in that: the edge of opening of above-mentioned pit has chamfering.
6. the anti-wear low speed engine cylinder sleeve of a kind of modified model according to claim 5, is characterized in that: inner side surface at the bottom of the hole of above-mentioned pit forms level and smooth same cambered surface with inside sidewalls face, hole.
7. the anti-wear low speed engine cylinder sleeve of a kind of modified model according to any one of claim 1-4, it is characterized in that: in above-mentioned pit row, the spacing between adjacent above-mentioned pit group is less than or equal to the size of described pit group on the direction that described pit row extends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520313390.8U CN204627763U (en) | 2015-05-15 | 2015-05-15 | The anti-wear low speed engine cylinder sleeve of a kind of modified model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520313390.8U CN204627763U (en) | 2015-05-15 | 2015-05-15 | The anti-wear low speed engine cylinder sleeve of a kind of modified model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204627763U true CN204627763U (en) | 2015-09-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520313390.8U Expired - Fee Related CN204627763U (en) | 2015-05-15 | 2015-05-15 | The anti-wear low speed engine cylinder sleeve of a kind of modified model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204627763U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228236A (en) * | 2020-10-20 | 2021-01-15 | 江苏大学 | Internal combustion engine cylinder sleeve and machining method thereof |
-
2015
- 2015-05-15 CN CN201520313390.8U patent/CN204627763U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228236A (en) * | 2020-10-20 | 2021-01-15 | 江苏大学 | Internal combustion engine cylinder sleeve and machining method thereof |
| CN112228236B (en) * | 2020-10-20 | 2021-11-05 | 江苏大学 | Internal combustion engine cylinder sleeve and machining method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20170515 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |