CN204627767U - A kind of novel abrasion-proof low speed engine cylinder sleeve - Google Patents
A kind of novel abrasion-proof low speed engine cylinder sleeve Download PDFInfo
- Publication number
- CN204627767U CN204627767U CN201520315191.0U CN201520315191U CN204627767U CN 204627767 U CN204627767 U CN 204627767U CN 201520315191 U CN201520315191 U CN 201520315191U CN 204627767 U CN204627767 U CN 204627767U
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- Prior art keywords
- pit
- liner body
- cylinder sleeve
- low speed
- engine cylinder
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model proposes a kind of novel abrasion-proof low speed engine cylinder sleeve, the inner side surface of liner body is laid with multiple parallelogram pit; Pit opening is less than the axial thickness of rectangular cross-section piston ring in liner body size axially; Many groups pit row arrange along liner body parallel to an axis; The pit of adjacent pit row is staggeredly set.The utility model breaks through the structural form of traditional cylinder sleeve, pit can reduce the area of contact of piston ring and liner body inner side surface, can be used as the containing groove of accommodating lubricant oil, pit place place and periphery thereof all can have lubricant oil to distribute, easy formation oil film, further minimizing friction, and the uniformity of oil film 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.So, the utility model 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.
Description
Technical field
The utility model relates to engine components field, is specifically related to a kind of novel abrasion-proof low speed engine cylinder sleeve.
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, practical novel abrasion-proof low speed engine cylinder sleeve.
In order to achieve the above object, the utility model adopts such technological scheme:
A kind of novel abrasion-proof low speed engine cylinder sleeve, comprise liner body, the inner side surface of described liner body is laid with the pit of multiple parallelogram; The opening of described pit is less than the axial thickness of rectangular cross-section piston ring in described liner body size axially; Described pit forms many group pit rows, and multiple described pit 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 of adjacent described pit row is staggeredly set.
Above-mentioned pit is rhombus.
The axis being parallel of the diagonal that above-mentioned pit is longer and above-mentioned liner body is arranged.
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 is less than or equal to the size of described pit on the direction that described pit row extends.
After adopting technique scheme, novel abrasion-proof low speed engine cylinder sleeve of the present utility model, break through the structural form of traditional cylinder sleeve, pit 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, novel abrasion-proof low speed engine cylinder sleeve 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 part plan structural representation of the present utility model;
Fig. 2 is the broken section structural representation of the utility model using state.
In figure:
1-liner body 11-pit
111-chamfering 112-cheats end inner side surface
113-cheats inside sidewalls face 10-pit row
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.
A kind of novel abrasion-proof low speed engine cylinder sleeve of the present utility model, as illustrated in fig. 1 and 2, comprises liner body 1.
The inner side surface of liner body 1 is laid with the pit 11 of multiple parallelogram; The opening of pit 11 is less than the axial thickness of rectangular cross-section piston ring 2 in liner body 1 size axially; Pit 11 forms many group pit rows 10, and pit row 10 comprises multiple pit 11 along liner body 1 circumferential array; Many groups pit row 10 arranges along the parallel to an axis of liner body 1; The pit 11 of adjacent pit row 10 is staggeredly set.Like this, pit 11 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 realizes effective hermetic seal, and in esse oil ring (not shown) also can to carrying out certain hermetic seal; 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, pit 11 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.
In order to make each edge of pit 11 all carry out even contact with rectangular cross-section piston ring 2, preferably, pit 11 is rhombus.
Preferably, the diagonal that pit 11 is longer and the axis being parallel of liner body 1 are arranged.This structure can make the edge of pit 11 and rectangular cross section piston ring 2 and oil ring etc. form the oblique Line of contact of several angle, 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.Pit 11 adapts with rectangular cross-section piston ring 2 in the longitudinal direction, is more convenient to rectangular cross-section piston ring 2 sliding axially along liner body 1.And four of pit 11 edges can form oblique Line of contact all symmetrical up and down with rectangular cross-section piston ring 2, 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 on the basis of directly to collide with the edge of pit 11, also make rectangular cross-section piston ring 2 be subject to the oblique contact of uniform balance, be convenient to rectangular cross-section piston ring 2 sliding axially along liner body 1 further.
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.
Novel abrasion-proof low speed engine cylinder sleeve of the present utility model, the spacing etc. that the quantity of pit row pits, 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 shape of pit, size, spacing, quantity and distribution form etc. all can be carried out adjusting and designing according to actual requirement; 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 (6)
1. a novel abrasion-proof low speed engine cylinder sleeve, comprises liner body, it is characterized in that: the inner side surface of described liner body is laid with the pit of multiple parallelogram; The opening of described pit is less than the axial thickness of rectangular cross-section piston ring in described liner body size axially; Described pit forms many group pit rows, and multiple described pit 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 of adjacent described pit row is staggeredly set.
2. a kind of novel abrasion-proof low speed engine cylinder sleeve according to claim 1, is characterized in that: above-mentioned pit is rhombus.
3. a kind of novel abrasion-proof low speed engine cylinder sleeve according to claim 2, is characterized in that: the axis being parallel of the diagonal that above-mentioned pit is longer and above-mentioned liner body is arranged.
4. a kind of novel abrasion-proof low speed engine cylinder sleeve according to any one of claim 1-3, is characterized in that: the edge of opening of above-mentioned pit has chamfering.
5. a kind of novel abrasion-proof low speed engine cylinder sleeve according to claim 4, 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.
6. a kind of novel abrasion-proof low speed engine cylinder sleeve according to any one of claim 1-3, it is characterized in that: in above-mentioned pit row, the spacing between adjacent above-mentioned pit is less than or equal to the size of described pit on the direction that described pit row extends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520315191.0U CN204627767U (en) | 2015-05-15 | 2015-05-15 | A kind of novel abrasion-proof low speed engine cylinder sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520315191.0U CN204627767U (en) | 2015-05-15 | 2015-05-15 | A kind of novel abrasion-proof low speed engine cylinder sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204627767U true CN204627767U (en) | 2015-09-09 |
Family
ID=54046805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520315191.0U Expired - Fee Related CN204627767U (en) | 2015-05-15 | 2015-05-15 | A kind of novel abrasion-proof low speed engine cylinder sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204627767U (en) |
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2015
- 2015-05-15 CN CN201520315191.0U patent/CN204627767U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20170515 |