CN107905905A - Safety-type cylinder - Google Patents
Safety-type cylinder Download PDFInfo
- Publication number
- CN107905905A CN107905905A CN201711045314.3A CN201711045314A CN107905905A CN 107905905 A CN107905905 A CN 107905905A CN 201711045314 A CN201711045314 A CN 201711045314A CN 107905905 A CN107905905 A CN 107905905A
- Authority
- CN
- China
- Prior art keywords
- piston
- groove
- oil
- ring
- compression
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/001—One-piece pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/12—Details
- F16J9/20—Rings with special cross-section; Oil-scraping rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/26—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction characterised by the use of particular materials
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/28—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction of non-metals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
- F02F2003/0007—Monolithic pistons; One piece constructions; Casting of pistons
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention discloses a kind of safety-type cylinder, belong to technical field of engines, the friction between piston and inboard wall of cylinder block can be reduced, increase cylinder service life.It includes cylinder body and the piston in cylinder body, the face that the piston is in contact with inboard wall of cylinder block sets multiple tracks annular groove, including compression, buffer-oriented groove and oil ring groove, buffer-oriented groove is between compression and oil ring groove, piston gas ring is provided with compression, oil piston ring is provided with oil ring groove, the guidance tape that the graphite material containing tetrafluoro makes is provided with buffer-oriented groove.The present invention is improved the contact surface between piston and inboard wall of cylinder block, and is rubbed using the guidance tape of specific materials come the rigidity reduced between the two, and inboard wall of cylinder block caused by the factors such as unbalance loading or insufficient lubrication can be avoided to pull.
Description
Technical field
The present invention relates to technical field of engines, and in particular to a kind of safety-type cylinder.
Background technology
Cylinder is had been used in a variety of occasions as the core component of engine, it guides piston to be carried out in its cylinder body directly
Line moves back and forth, therefore, between piston and inboard wall of cylinder block long-term friction can reduce part service life or cause the drawing of inner wall
Wound, inboard wall of cylinder block, which is pulled, can make cylinder acting reduction and maintenance difficult, and inner wall caused by this rigidity friction is drawn in order to prevent
Wound, can be improved from the configuration aspects of lubricating system and part.
The content of the invention
It is an object of the invention to provide a kind of friction reduced between piston and inboard wall of cylinder block, increase cylinder uses the longevity
The safety-type cylinder of life.
The purpose of the present invention is what is be achieved through the following technical solutions：Safety-type cylinder, including cylinder body and the work in cylinder body
Plug, the face that the piston is in contact with inboard wall of cylinder block set multiple tracks annular groove, including compression, buffer-oriented groove and oil ring
Groove, buffer-oriented groove are provided with piston gas ring, piston are provided with oil ring groove between compression and oil ring groove in compression
Oil ring, the guidance tape that the graphite material containing tetrafluoro makes is provided with buffer-oriented groove, and guidance tape is equipped with several anti-skidding
Grain, the compression include first gas ring groove and second gas ring groove, and the piston gas ring side that is in contact with inboard wall of cylinder block is ripple
Shape face, and including at least there is two cambered surfaces, the lower edges on the inside of the piston gas ring have angle, are coated with the wavy surface
High carbon-manganese steel layer.
Further, the oil piston ring is arranged on including upper steel disc, lower steel disc and spiral spring, spiral spring
Between steel disc and lower steel disc.
The invention has the advantages that：It is buffer-oriented groove that protection together is set the piston outer ring surface more, guide groove
Interior to be equipped with the guidance tape made of the graphite material containing tetrafluoro, the guidance tape of the material has preferable toughness, even if cylinder
Iron filings have been caught in motion process, cylinder body will not have been caused to pull；And the material, which has, reduces friction coefficient, improves lubrication
Property, improve thermal conductivity the advantages of, especially between piston and cylinder body rigidity friction have preferable protective action.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is enlarged diagram at the A of Fig. 1；
Marked in figure：1- cylinder bodies；2- pistons；3- first gas ring grooves；4- second gas ring grooves；5- buffer-oriented grooves；6- oil rings
Groove；7- piston gas rings；71- wavy surfaces；72- angles；8- guidance tapes；9- oil piston rings.
Embodiment
As shown in Figure 1, safety-type cylinder provided in this embodiment, including cylinder body 1 exist with the piston 2 in cylinder body 1, piston 2
First gas ring groove 3, second gas ring groove 4, buffer-oriented groove 5 and oil are disposed with the outer end face being in contact with 1 inner wall of cylinder body
Annular groove 6, adds one of protection i.e. buffer-oriented groove 5 in the structure of basic piston 2, with reduce piston 2 and 1 inner wall of cylinder body it
Between rigidity friction.Piston gas ring 7 is both provided with first gas ring groove 3 and second gas ring groove 4, promotes the transmission of heat；Oil ring
Oil piston ring 9 is provided with groove 6 sheaing is carried out to machine oil；It is provided with what the graphite material containing tetrafluoro made in buffer-oriented groove 5
Guidance tape 8, the material have the advantages of reducing friction coefficient, improving lubricity, improve thermal conductivity, can make in piston 2 and cylinder body 1
Movement between wall is more smooth, and cylinder body will not be caused to pull even if being caught in iron filings in cylinder body 1, and guidance tape 8 is equipped with some
A protection particle.In addition, buffer-oriented groove 5 is arranged between second gas ring groove 4 and oil ring groove 6 protection effect more preferably, a side
Face, guidance tape 8 have preferable thermal conductivity, remaining heat transfer can be gone out before being arranged on oil piston ring 9, make heat
Hardly transmitted by oil piston ring 9, increase the service life of oil piston ring 9, while avoid machine oil from burning because of high temperature；The opposing party
Face, 9 uplink cloth of oil piston ring oil, downlink frizing, the molecular property of 8 material of guidance tape can improve the lubricity of pasta, in downlink
When also can by oil film it is smooth under scrape, move piston gas ring 7 more regular smooth, air-tightness is more preferable.
Piston 2 does straight reciprocating motion in cylinder body, which is accompanied by the movement of certain beat, can oversize piston 2 with
Rub between 1 inner wall of cylinder body, piston gas ring 7 is arranged to wavy surface 71 with the side that 1 inner wall of cylinder body is in contact, and include at least
There are two cambered surfaces, as shown in Fig. 2, wavy surface 71 can reduce contact area so as to reduce friction, make piston gas ring 7 in cylinder body 1
Run more smooth on wall, two cambered surfaces can improve the flatness of oil film sheaing in 2 downlink of piston.In addition, in wavy surface 71
On plate meagre high carbon-manganese steel layer after can increase wearability and service life.
The major function of piston gas ring 7 is timely export heat, and 7 leakproofness of piston gas ring is better, then heat transfer effect
It is better, prevent waste heat from channeling to the crankcase internal combustion burn oil of lower section.In order to ensure the air-tightness of piston gas ring 7, in piston
The lower edges of the inner side of compression ring 7 have angle 72, are provided necessarily partially as shown in Fig. 2, the angle 72 moves up and down for piston gas ring 7
Gyration, because when piston 2 moves reciprocatingly, piston gas ring 7 can also move up and down in compression, and there are the compression ring meeting of corner angle
Occur that, because the problem of corner angle can not rotate cannot close space in the groove, piston gas ring 7 can be made in compression after having angle 72
Tilted and seal groove internal clearance card, airtight effect is preferable.
Oil piston ring 9 includes upper steel disc, lower steel disc and spiral spring, and spiral spring is arranged on steel disc and lower steel disc
Between.Using this spring compound oil ring carbon distribution in oil piston ring 9 can be made few, adaptability more preferably, upstream or downstream movement compared with
For independence, cloth oil and scraping effect are more preferably.
The present invention is improved the contact surface between piston and inboard wall of cylinder block, and is subtracted using the guidance tape of specific materials
Few rigidity friction between the two, can avoid inboard wall of cylinder block caused by the factors such as unbalance loading or insufficient lubrication from pulling.
The above is only the preferred embodiment of the present invention, but protection scope of the present invention is not limited thereto, any
The transformation and replacement that are carried out based on technical solution provided by the present invention and inventive concept should all cover the protection model in the present invention
In enclosing.
Claims (2)
1. safety-type cylinder, including cylinder body and the piston in cylinder body, it is characterised in that：What the piston was in contact with inboard wall of cylinder block
Face sets multiple tracks annular groove, including compression, buffer-oriented groove and oil ring groove, buffer-oriented groove to be located at compression and oil ring groove
Between, piston gas ring is provided with compression, oil piston ring is provided with oil ring groove, is provided with buffer-oriented groove containing tetrafluoro
The guidance tape that graphite material makes, guidance tape are equipped with several antiskid particles, and the compression includes first gas ring groove and the
Two compressions, the piston gas ring side that is in contact with inboard wall of cylinder block is wavy surface, and including at least having two cambered surfaces, the work
Lower edges on the inside of plug compression ring have angle, and high carbon-manganese steel layer is coated with the wavy surface.
2. safety-type cylinder according to claim 1, it is characterised in that：The oil piston ring includes upper steel disc, lower steel disc
With spiral spring, spiral spring is arranged between steel disc and lower steel disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711045314.3A CN107905905A (en) | 2017-10-31 | 2017-10-31 | Safety-type cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711045314.3A CN107905905A (en) | 2017-10-31 | 2017-10-31 | Safety-type cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107905905A true CN107905905A (en) | 2018-04-13 |
Family
ID=61842927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711045314.3A Withdrawn CN107905905A (en) | 2017-10-31 | 2017-10-31 | Safety-type cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107905905A (en) |
-
2017
- 2017-10-31 CN CN201711045314.3A patent/CN107905905A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180413 |