CN1239200A - Oil ring with forced sealing - Google Patents
Oil ring with forced sealing Download PDFInfo
- Publication number
- CN1239200A CN1239200A CN 98114633 CN98114633A CN1239200A CN 1239200 A CN1239200 A CN 1239200A CN 98114633 CN98114633 CN 98114633 CN 98114633 A CN98114633 A CN 98114633A CN 1239200 A CN1239200 A CN 1239200A
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- Prior art keywords
- ring
- basic ring
- annular boss
- axially
- scraping blade
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- 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.)
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- 238000007789 sealing Methods 0.000 title claims abstract description 27
- 238000007790 scraping Methods 0.000 claims description 58
- 230000002093 peripheral effect Effects 0.000 claims description 18
- 238000003466 welding Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract 1
- 238000012856 packing Methods 0.000 description 4
- 230000010354 integration Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
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- Sealing Devices (AREA)
Abstract
An oil ring with forced sealing used as the piston ring of piston in IC engine and air compressor is composed of basic ring and scraper plate. The central bottom surface of the basic ring is a conic surface. The annular boss projected downward axially is made on the external circumference of the bottom surface of basic ring. A number of radial oil-draining hole is arranged on the annular boss and basic ring. The lower part of conic surface is in contact with elastic tension ring to form forced sealing. Its advantages are easy installation, high sealing performance and elongating service life of piston ring.
Description
The present invention relates to the oil ring in the piston ring, relate in particular to one oil ring that is used on internal-combustion engine or the aerostatic press piston.
At present, the reciprocating piston seal arrangement uses the forced sealing oil ring in the piston ring, it is relatively more difficult when packing cylinder sleeve into, and the circumferential ring expander (helical spring packing) in its ring, free length is shorter, when circle change in the barrel wear diminishes with ring wearing and tearing cylindrical greatly, its elastic force decay is fast, make the sealing function variation of ring and cylinder sleeve surface of contact, thereby produce gas leakage and scurry oil, cause shorten the working life of piston ring.
The purpose of this invention is to provide a kind of oil ring with forced sealing of being convenient to install, difficulty when packing in the cylinder sleeve to solve existing forced sealing oil ring increases the circumferential ring expander free length, increases the sealability of oil ring, prolongs the working life of oil ring.
The present invention is achieved in that its scheme is as follows:
The sealing oil ring comprises a basic ring that is provided with opening, the external peripheral surface top of basic ring has the convex annular eaves (sliding shoulder) that radially outward protrudes, its upper surface inner circumference place is provided with axially annular boss protruding upward, the external peripheral surface outside at annular boss axially protruding upward is provided with 1 or 2 scraping blades, each opening of described scraping blade and the opening of basic ring all stagger mutually, the appropriate location, middle part of described basic ring lower surface is conical surface (this conical surface radially inwardly may extend into the basic ring inner circumferential surface), the angle a of this conical surface and horizontal plane is 10 ° of-80 ° of angles, make the annular boss that axially protrudes downwards at basic ring excircle lower surface place, (the axially annular boss of downward protrusion and and basic ring joint) lays several draining holes (can be rectangular hole and circular port) radially along circumference on the annular boss and basic ring of axial protrusion downwards.Also be provided with circumferential ring expander with it in contact at described conical surface lower surface.
The sealing oil ring comprises a basic ring that is provided with opening, the external peripheral surface top of basic ring has the convex annular eaves (sliding shoulder) that radially outward protrudes, its upper surface inner circumference place is provided with axially annular boss protruding upward, the external peripheral surface outside at annular boss axially protruding upward is provided with 1 or 2 scraping blades, each opening of described scraping blade and the opening of basic ring all stagger mutually, the appropriate location, middle part of described basic ring lower surface is conical surface (this conical surface radially inwardly may extend into the basic ring inner circumferential surface), the angle a of this conical surface and horizontal plane is 10 ° of-80 ° of angles, make the annular boss that axially protrudes downwards at basic ring excircle lower surface place, (the axially annular boss of downward protrusion and and basic ring joint) lays several draining holes (can be rectangular hole and circular port) radially along circumference on the annular boss and basic ring of axial protrusion downwards.Axially the inner circumferential surface of the annular boss that protrudes is downwards made the groove of circular arc, also is provided with circumferential ring expander with it in contact at described conical surface lower surface.
The sealing oil ring comprises a basic ring that is provided with opening, its upper surface inner circumference place is provided with axially annular boss protruding upward, the external peripheral surface outside at annular boss axially protruding upward is provided with 2 scraping blades, two openings of described scraping blade stagger 180 ° mutually, the appropriate location, middle part of described basic ring lower surface is conical surface (this conical surface radially inwardly may extend into the basic ring inner circumferential surface), the angle a of this conical surface and horizontal plane is 10 ° of-80 ° of angles, make the annular boss that axially protrudes downwards at basic ring excircle lower surface place, (the axially annular boss of downward protrusion and and basic ring joint) lays several draining holes (can be rectangular hole and circular port) radially along circumference on the annular boss and basic ring of axial protrusion downwards.Also be provided with circumferential ring expander with it in contact at described conical surface lower surface.
The sealing oil ring comprises a basic ring that is provided with opening, the external peripheral surface top of basic ring has the convex annular eaves (sliding shoulder) that radially outward protrudes, its upper surface inner circumference place is provided with axially annular boss protruding upward, the external peripheral surface outside at annular boss axially protruding upward is provided with 1 or 2 scraping blades, each opening of described scraping blade and the opening of basic ring all stagger mutually, the appropriate location, middle part of described basic ring lower surface is conical surface (this conical surface radially inwardly may extend into the basic ring inner circumferential surface), the angle a of this conical surface and horizontal plane is 10 ° of-80 ° of angles, also is provided with circumferential ring expander with it in contact at described conical surface lower surface.Be provided with gasket ring below circumferential ring expander, be provided with several axially circular arc section raised lines protruding upward at described gasket ring upper surface inner circumference place, described gasket ring and a section raised line are an integral body (can bonding or welding, also can directly for being made into integration).Groove between per two adjacent circular arc section raised lines promptly becomes the draining hole.
For the rotation opening that prevents scraping blade overlaps, described scraping blade is made as two, and it is 120 °-180 ° that these two scraping blade openings stagger mutually, is that the spot welding connection or the part of part is bonding between these two scraping blades, makes two scraping blade aperture position relative fixed.
When scraping blade was made as 1, it was 180 ° that scraping blade opening and basic ring opening stagger mutually, and scraping blade and basic ring make scraping blade opening and basic ring aperture position relative fixed for local bonding or key is connected.
The scraping blade axial thickness of described setting equals the axial height of annular boss.
In order to prevent circumferential ring expander worn piston annular groove, below circumferential ring expander, be provided with gasket ring.
The corresponding position of described basic ring excircle lower surface and section raised line upper surface bond together (integral body).
The annular boss lower surface that axially downwards protrudes and gasket ring excircle upper surface corresponding position bond together (integral body) are established in described basic ring excircle lower surface place.
Because seal oil ring of the present invention, on described basic ring, be provided with the annular boss that axially protrudes downwards, upper and lower side of seal oil ring and the upper and lower side of piston ring groove assemblage gap are reduced, annular boss lower surface that axially protrude downwards at particularly described basic ring excircle lower surface place and gasket ring excircle upper surface corresponding position bond together after (integral body), seal oil ring and scraping blade wherein just can enter in the annular groove smooth-goingly, and the free length of circumferential ring expander can obtain increasing, so can improve the usability and the durability of seal oil ring.
Below in conjunction with accompanying drawing specific embodiments of the invention are described.
Fig. 1 is an embodiment's of oil ring with forced sealing a schematic cross-section;
Fig. 2 is an embodiment's of oil ring with forced sealing a schematic cross-section;
Fig. 3 establishes two scraping blades [1] and the situation of not establishing the embodiment that protruding eaves [6] forms on the oil ring with forced sealing;
Fig. 4 is an embodiment's of oil ring with forced sealing a schematic cross-section;
Fig. 5 sets up the embodiment that gasket ring [8] forms on the basis of Fig. 1;
Fig. 6 sets up the embodiment that gasket ring [8] forms on the basis of Fig. 2;
Fig. 7 is remove helical supporting spring [5] in Fig. 1 after, and other changes the cross section into is the embodiment that V word serpentine spring forms;
Fig. 8 is the partial top view of gasket ring [8] and section raised line [11];
Fig. 9 is the A-A profile stretch-out view of Fig. 8.
As shown in Figure 1, according to seal oil ring of the present invention, comprise a basic ring [3] that is provided with opening, top shown in basic ring [3] the external peripheral surface figure, has convex annular eaves [6] with the concentric setting of described basic ring, upper surface inner circumference place at basic ring [3], be provided with an axial annular boss protruding upward [2], annular boss [2] axially protruding upward is concordant with the inner circumferential surface of basic ring [3] with the coaxial setting of basic ring [3] and its inner circumferential surface, the external peripheral surface outside at annular boss [2] axially protruding upward is provided with a scraping blade [1], the axial thickness of this scraping blade [1] equals the axial height of annular boss [2] axially protruding upward, its internal diameter equates that with the external diameter of annular boss [2] axially protruding upward its external diameter then equates with the external diameter of protruding eaves [6].Basic ring shown in the figure [3] is the flexible annulus that opening is arranged, and this is identical with prior art.Opening on scraping blade [1] and the basic ring [3] is set like this according to the present invention, promptly staggers 120 °-180 ° mutually on circumference, 180 ° of (not shown)s preferably stagger.This setting type is the same in following example, therefore will this not given unnecessary details below.The top of described basic ring [3] inner circumferential surface is the cylndrical surface, described basic ring [3] lower surface middle part is conical surface [4], this conical surface [4] is 10 ° of-80 ° of angles with the angle a of horizontal plane, make the annular boss [12] that axially protrudes downwards at basic ring [3] lower surface excircle place, annular boss [12] and basic ring [3] at axial protrusion downwards gone up (the axially downward annular boss [12] that protrudes reaches and basic ring [3] joint), lays several draining holes [7] (can be rectangular hole and circular port) radially along circumference.Described protruding eaves [6], axial annular boss [2] protruding upward, the annular boss [12] that axially protrudes downwards and basic ring [3] are as a whole, also are provided with circumferential ring expander [5] with it in contact at described conical surface [4] lower surface.
Described circumferential ring expander [5] is a helical supporting spring, i.e. helical spring packing etc.This is identical with prior art.
Fig. 2 has represented another embodiment of seal oil ring according to the present invention.Wherein basic ring [3], protruding eaves [6], axially the basic ring [3] among setting and Fig. 1 of annular boss boss [2] protruding upward, conical surface [4], scraping blade [1], annular boss [12] draining hole [7] circumferential ring expander [5] that axially protrudes downwards, protruding eaves [6], axially annular boss [2] protruding upward, conical surface [4], scraping blade [1], axially downwards the annular boss [12] of protrusion, draining hole [7], circumferential ring expander [5] be provided with identical.But different parts are that described annular boss [12] inner circumferential surface that axially protrudes is downwards made the groove [9] of circular arc.
Fig. 3 has represented according to the present invention another embodiment of seal oil ring, wherein circumferential ring expander [5], basic ring [3], conical surface [4], axially the circumferential ring expander [5] among setting and Fig. 1 of the annular boss [12] that axially protrudes downwards of annular boss [2] protruding upward, draining hole [7], basic ring [3], conical surface [4], axially annular boss [2] protruding upward, axially downwards the annular boss [12] of protrusion, draining hole [7] be provided with identical.But different parts are, do not have protruding eaves [6] on the external peripheral surface top of basic ring [3], and have set up a slice scraping blade in the external peripheral surface outside of annular boss [2] axially protruding upward more, and scraping blade [1] becomes two.It is 180 ° of (not shown)s that these two scraping blade openings stagger mutually, and the part of the excircle radial dimension of scraping blade [1] promptly becomes protruding eaves (sliding shoulder), and the axial thickness of scraping blade [1] equals the axial height of boss [2].
Fig. 4 has represented another embodiment of seal oil ring according to the present invention.Wherein basic ring [3], protruding eaves [6], axially the basic ring [3] among setting and Fig. 1 of annular boss boss [2] protruding upward, conical surface [4], scraping blade [1], circumferential ring expander [5], protruding eaves [6], axial annular boss [2] protruding upward, conical surface [4], scraping blade [1],, circumferential ring expander [5] be provided with identical.But different parts are, do not establish the annular boss [12] that axially protrudes in this ring downwards, and below circumferential ring expander [5], be provided with gasket ring [8], be provided with several axially circular arc section raised lines [11] protruding upward at described gasket ring [8] excircle upper surface place, described gasket ring [8] and a section raised line [11] are an integral body (can be bonding or welding, also can directly for being made into integration).Groove between per two adjacent circular arc section raised lines promptly becomes the draining hole.
The embodiment that Fig. 5, Fig. 6 represent has respectively only increased gasket ring [8] on Fig. 1, embodiment basis shown in Figure 2, self-evident, this ring also is the annulus that opening is arranged, its cross section is a rectangular, the upper side of gasket ring [8] contacts with the downside of circumferential ring expander [5], and gasket ring [8] can be avoided directly worn piston annular groove of circumferential ring expander [5].
In the embodiment that Fig. 5, Fig. 6 represent respectively, axially annular boss [12] lower surface that protrudes downwards and the pairing position of gasket ring [8] excircle upper surface are for bonding together (but when seal ring is worked, when its temperature reaches 80 ℃ of left and right sides, the glue of bonding usefulness lost efficacy, and its gluing of surfaces separately).
In the embodiment shown in fig. 3, also can set up gasket ring [8] at the downside of circumferential ring expander [5].
When scraping blade [1] is made as 1, see Fig. 1, Fig. 2, Fig. 4, Fig. 5, Fig. 6 Fig. 7, scraping blade [1] staggers 180 ° mutually with basic ring [3] opening, establish radially to a projecting inward protruding key (can weld) at 180 ° of inner circumferential surface places of the corresponding opening of scraping blade [1], it (is that one section at collar extension place does not establish [removing] axially annular boss [2] protruding upward that basic ring [3] collar extension place is provided with a keyway, and the formation keyway), basic ring [3] and scraping blade [1] be for key and keyway are connected, and scraping blade [1] opening and basic ring [3] aperture position staggered mutually 180 spend.
Those of ordinary skill in the art; all can be on the basis that does not exceed the application's protection domain that claim limits; the present invention is made other variation and modification; above according to a particular embodiment of the invention to description that the present invention did; do not constitute limitation of the invention, and only be used to describe the present invention.
Claims (10)
1, oil ring with forced sealing, comprise a basic ring [3] that is provided with opening, the external peripheral surface top of basic ring [3] has the convex annular eaves [6] that radially outward protrudes, its upper surface inner circumference place is provided with axially annular boss [2] protruding upward, the external peripheral surface outside at annular boss [2] axially protruding upward is provided with 1 or 2 scraping blades [1], the opening of each opening of described scraping blade [1] and basic ring [3] all staggers mutually, the middle part of described basic ring [3] lower surface is conical surface [4], this conical surface [4] is 10 ° of-80 ° of angles with the angle a of horizontal plane, it is characterized in that: make the annular boss [12] that axially protrudes downwards at basic ring [3] excircle lower surface place, on the annular boss [12] and basic ring [3] that axially protrude downwards, lay several draining holes [7] radially along circumference, also be provided with circumferential ring expander [5] with it in contact at described conical surface [4] lower surface.
2, oil ring with forced sealing, comprise a basic ring [3] that is provided with opening, the external peripheral surface top of basic ring [3] has the convex annular eaves [6] that radially outward protrudes, its upper surface inner circumference place is provided with axially annular boss [2] protruding upward, the external peripheral surface outside at annular boss [2] axially protruding upward is provided with 1 or 2 scraping blades, the opening of each opening of described scraping blade [1] and basic ring [3] all staggers mutually, the appropriate location, middle part of described basic ring [3] lower surface is conical surface [4], this conical surface [4] is 10 ° of-80 ° of angles with the angle a of horizontal plane, it is characterized in that: the annular boss [12] that axially protrudes is made at basic ring [3] excircle lower surface place downwards.On the annular boss [12] and basic ring [3] that axially protrude downwards, lay several draining holes [7] radially along circumference, axially the inner circumferential surface of the annular boss [12] that protrudes is downwards made the groove [9] of circular arc, also is provided with circumferential ring expander [5] with it in contact at described conical surface [4] lower surface.
3, oil ring with forced sealing, comprise a basic ring [3] that is provided with opening, its upper surface inner circumference place is provided with axially annular boss [2] protruding upward, the external peripheral surface outside at annular boss [2] axially protruding upward is provided with 2 scraping blades [1], two openings of described scraping blade [1] stagger 180 ° mutually, the appropriate location, middle part of described basic ring [3] lower surface is conical surface [4], this conical surface [4] is 10 ° of-80 ° of angles with the angle a of horizontal plane, it is characterized in that: the annular boss [12] that axially protrudes is made at basic ring [3] excircle lower surface place downwards, on the annular boss [12] and basic ring [3] that axially protrude downwards, lay several draining holes [7] radially along circumference, also be provided with circumferential ring expander [5] with it in contact at described conical surface [4] lower surface.
4, oil ring with forced sealing, comprise a basic ring [3] that is provided with opening, the external peripheral surface top of basic ring [3] has the convex annular eaves [6] that radially outward protrudes, its upper surface inner circumference place is provided with axially annular boss [2] protruding upward, the external peripheral surface outside at annular boss [2] axially protruding upward is provided with 1 or 2 scraping blades [1], the opening of each opening of described scraping blade [1] and basic ring [3] all staggers mutually, the appropriate location, middle part of described basic ring [3] lower surface is conical surface [4], this conical surface [4] is 10 ° of-80 ° of angles with the angle a of horizontal plane, also be provided with circumferential ring expander [5] with it in contact at described conical surface [4] lower surface, below circumferential ring expander [5], be provided with gasket ring [8], it is characterized in that: be provided with several axially circular arc section raised lines [11] protruding upward at described gasket ring [8] upper surface excircle place, described gasket ring [8] is an integral body with section raised line [11], groove between per two adjacent circular arc section raised lines [11] promptly becomes draining hole [7].
5, according to claim 1,2 or 3 described oil ring with forced sealing, it is characterized in that: be provided with gasket ring [8] below the circumferential ring expander [5].
6, according to claim 1,2,3 or 4 described oil ring with forced sealing, it is characterized in that: described scraping blade [1] is made as two, it is 120 °-180 ° that these two scraping blade openings stagger mutually, between these two scraping blades [1], bonding for the spot welding connection or the part of part, make two scraping blade aperture position relative fixed.
7, according to claim 1,2 or 4 described oil ring with forced sealing, it is characterized in that: when scraping blade [1] when being made as a slice, it is 180 ° of angles that scraping blade [1] staggers mutually with basic ring [3] opening, and scraping blade [1] is local bonding with basic ring [3], makes scraping blade [1] opening and basic ring [3] aperture position relative fixed.
8, according to claim 1,2 or 4 described oil ring with forced sealing, it is characterized in that: when scraping blade [1] when being made as a slice, scraping blade [1] staggers 180 ° mutually with basic ring [3] opening, establish radially to a projecting inward protruding key at 180 ° of inner circumferential surface places of the corresponding opening of scraping blade [1], basic ring [3] collar extension place is provided with a keyway, basic ring [3] and scraping blade [1] make scraping blade [1] opening and basic ring [3] aperture position stagger 180 ° mutually for key and keyway are connected.
9, oil ring with forced sealing according to claim 4 is characterized in that: described basic ring [3] excircle lower surface bonds together with the corresponding position of section raised line [11] upper surface.
10, oil ring with forced sealing according to claim 5 is characterized in that: described basic ring [3] excircle lower surface place is established annular boss [12] lower surface and gasket ring [8] the excircle upper surface corresponding position that axially protrude downwards and is bonded together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98114633 CN1239200A (en) | 1998-06-11 | 1998-06-11 | Oil ring with forced sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98114633 CN1239200A (en) | 1998-06-11 | 1998-06-11 | Oil ring with forced sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1239200A true CN1239200A (en) | 1999-12-22 |
Family
ID=5224262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98114633 Pending CN1239200A (en) | 1998-06-11 | 1998-06-11 | Oil ring with forced sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1239200A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006053489A1 (en) * | 2004-11-16 | 2006-05-26 | Xiuming Yu | Oil sealing ring |
| CN1316187C (en) * | 2001-11-22 | 2007-05-16 | 米勒及布劳赫里有限公司 | Segmented oil scraper ring |
| CN103821630A (en) * | 2013-11-15 | 2014-05-28 | 安庆帝伯格茨活塞环有限公司 | Conical surface second piston compression ring with protruding platform |
-
1998
- 1998-06-11 CN CN 98114633 patent/CN1239200A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316187C (en) * | 2001-11-22 | 2007-05-16 | 米勒及布劳赫里有限公司 | Segmented oil scraper ring |
| WO2006053489A1 (en) * | 2004-11-16 | 2006-05-26 | Xiuming Yu | Oil sealing ring |
| CN103821630A (en) * | 2013-11-15 | 2014-05-28 | 安庆帝伯格茨活塞环有限公司 | Conical surface second piston compression ring with protruding platform |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |