CN101042191A - Sealed oil ring - Google Patents
Sealed oil ring Download PDFInfo
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- CN101042191A CN101042191A CN 200610167926 CN200610167926A CN101042191A CN 101042191 A CN101042191 A CN 101042191A CN 200610167926 CN200610167926 CN 200610167926 CN 200610167926 A CN200610167926 A CN 200610167926A CN 101042191 A CN101042191 A CN 101042191A
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- ring
- peripheral surface
- arc
- seal oil
- basic ring
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Abstract
It relates to a seal oil ring, especially the one inside the internal combustion and air compressor. It comprises a base ring with opening, outer circumference of the base ring having radial ring flange, with upper surface of both ends of the base ring opening having upper slot with radial through, inner circumference surface of both ends of the base ring opening having axial through slot that has inside plug arc, radial through upper slot having arc upper scratch ring, spring cup ring at the inner circumference of the base ring and the block arc ring. Thereof, it can eliminate ring opening leakage.
Description
Technical field
The present invention relates to a kind of oil ring, relate in particular to the oil ring in the used piston ring of internal-combustion engine or air compressor.
Background technique
At present, the oil ring structure that is used for the internal-combustion piston engine piston ring comprises two kinds: 1, comprise a basic ring that has opening, has the annular upper flange (scraping land) that a radially outward protrudes on basic ring outer peripheral surface top, axial neutral position at the inner circumferential surface of basic ring is provided with groove, and helical supporting spring is housed in groove.2, comprise a basic ring that has opening, the outer peripheral surface top of this basic ring has the annular upper flange (going up scraping land) that a radially outward protrudes, its outer peripheral surface bottom has the annular lower protruding edge (following scraping land) that a radially outward protrudes, on basic ring, be provided with draining passage radially, be provided with a groove that holds helical supporting spring in the axial neutral position of basic ring inner peripheral surface, helical supporting spring is housed in groove.
The common drawback of above-mentioned oil ring is: the opening at basic ring leaks.
Summary of the invention
The purpose of this invention is to provide a kind of seal oil ring, the sealing oil ring has been eliminated the collar extension leakage, has improved the sealability of oil ring.
The objective of the invention is to realize by following technological scheme:
According to seal oil ring of the present invention: comprise a basic ring that has opening, the outer peripheral surface of basic ring has the annular flange flange that radially outward protrudes, upper surface place, the two ends of basic ring opening be provided with radially connect on groove, the inner circumferential surface place is provided with axial through slot at the two ends of basic ring opening, in this axial through slot, be provided with the arc body of blocking up, in described radially perforation, be provided with scraping ring on the segmental arc in the groove, be provided with circumferential ring expander at the basic ring and the arc body inner peripheral surface of blocking up.
According to preferred implementation, described basic ring outer peripheral surface only is provided with the annular upper flange that a radially outward protrudes, and this upper flange is positioned at the upper position of basic ring outer peripheral surface.
According to preferred implementation, the outer peripheral surface of described basic ring only is provided with the annular flange that a radially outward protrudes, and this flange is positioned at the neutral position of basic ring outer peripheral surface.
According to preferred implementation, be provided with chamfering in the jointing place of the external peripheral surface of basic ring upper surface and annular flange flange.
According to preferred implementation, be provided with chamfering in the jointing place of the external peripheral surface of basic ring upper surface and annular upper flange.
According to preferred implementation, be provided with chamfering in the jointing place of the external peripheral surface of the upper surface of basic ring and annular flange; Jointing place at the external peripheral surface of the lower surface of basic ring and annular flange is provided with chamfering down.
According to preferred implementation, the bottom of basic ring outer peripheral surface is provided with the annular lower protruding edge that a radially outward protrudes.
According to preferred implementation, scraping ring is made for one jointly on block up arc body and the segmental arc.
According to preferred implementation, be provided with the following groove that radially connects at lower surface place, the two ends of basic ring opening, in the described following groove that radially connects, be provided with scraping ring under the segmental arc.
According to preferred implementation, on the arc body of blocking up, the segmental arc under scraping ring and the segmental arc scraping ring be made for one jointly.
According to preferred implementation, the jointing place of the external peripheral surface of scraping ring is provided with chamfering outside the top on the upper surface of scraping ring and the segmental arc on segmental arc.
According to preferred implementation, the jointing place of the external peripheral surface of scraping ring is provided with chamfering outside the bottom under the lower surface of scraping ring and the segmental arc under segmental arc.
According to preferred implementation, axially the central angle alpha of through slot arc length is greater than the central angle β of the last groove that radially connects, and the arc length of the described arc body of blocking up is greater than the arc length of scraping ring on the segmental arc.
According to preferred implementation, be respectively equipped with narrow groove at the two ends of the arc body inner peripheral surface of blocking up.
According to preferred implementation, be provided with groove at the basic ring and the arc body inner peripheral surface of blocking up, circumferential ring expander is set in groove.
At all above-mentioned mode of executions, described basic ring is provided with at least one draining passage radially.
Because in seal oil ring of the present invention, upper surface place, the two ends of basic ring opening be provided with radially connect on groove, the inner circumferential surface place is provided with axial through slot at the two ends of basic ring opening, in described axial through slot, be provided with the arc body of blocking up, in described radially perforation, be provided with scraping ring on the segmental arc in the groove.Be provided with the following groove that radially connects at lower surface place, the two ends of basic ring opening, in the described following groove that radially connects, be provided with scraping ring under the segmental arc.On the basic ring and the arc body inner peripheral surface of blocking up, circumferential ring expander is set.Eliminate the axial and leakage radially of oil ring opening, thoroughly eliminated the collar extension leakage.
Description of drawings
Fig. 1 schematically illustrates the part plan view of basic ring 2 in the seal oil ring of the present invention;
Fig. 2 schematically illustrates seal oil ring first embodiment's of the present invention plan view;
Fig. 3 is the sectional view along the line A-A intercepting of Fig. 2;
Fig. 4 is that block up scraping ring 8 on arc body 6 and the segmental arc is made for the schematic representation of one jointly;
Fig. 5 is the sectional drawing along the line B-B intercepting of Fig. 4;
Fig. 6 schematically illustrates seal oil ring second embodiment's of the present invention plan view;
Fig. 7 is the sectional view along the line A-A intercepting of Fig. 6;
Fig. 8 is that block up scraping ring 8 on arc body 6 and the segmental arc is made for the schematic representation of one jointly;
Fig. 9 is the sectional drawing along the line B-B intercepting of Fig. 8;
Figure 10 schematically illustrates seal oil ring the 3rd embodiment's of the present invention plan view;
Figure 11 is the sectional view along the line A-A intercepting of Figure 10;
Figure 12 is that block up on arc body 6, segmental arc scraping ring 10 under the scraping ring 8 and segmental arc is made for the schematic representation of one jointly;
Figure 13 is the sectional drawing along the line B-B intercepting of Figure 12;
Figure 14 is the schematic representation that is provided with narrow groove 12 at the two ends of arc body 6 inner circumferential surfaces of blocking up;
Figure 15 schematically illustrates seal oil ring the 4th embodiment's of the present invention plan view;
Figure 16 is the plan view of seal oil ring of the present invention;
Figure 17 is that the jointing place of the external peripheral surface of scraping ring 8 on the upper surface of scraping ring 8 on segmental arc and the segmental arc is provided with chamfering 18 outside the top, and the jointing place of the external peripheral surface of scraping ring 10 is provided with the amplification profile of chamfering 19 outside the bottom under the lower surface of scraping ring 10 and the segmental arc under segmental arc;
Figure 18 is the schematic representation that is provided with the following groove 14 that radially connects at the lower surface place, two ends of basic ring 2 openings 13.
Embodiment
Fig. 1-5 schematically illustrates first embodiment of seal oil ring of the present invention.
Fig. 1 schematically illustrates the part plan view of basic ring 2 among first embodiment of seal oil ring of the present invention.Fig. 2 is seal oil ring first an embodiment's of the present invention plan view.As shown in Figure 2, according to seal oil ring of the present invention, comprise a basic ring 2 that has opening 13, basic ring 2 outer peripheral surfaces have the annular flange flange 1 that radially outward protrudes.The central axes of the external peripheral surface of the external peripheral surface of described flange 1 and basic ring 2.Jointing place at the external peripheral surface of the upper surface of basic ring 2 and annular flange flange 1 is provided with chamfering 15, this be convenient to the upper surface place, two ends of basic ring 2 openings 13 be provided with radially connect on groove 4, and help being provided with scraping ring 8 on the segmental arc; In addition, also help the axial height of minimizing annular flange flange 1 and the area of external peripheral surface, can reduce the area and the frictional force that contact with cylinder wall like this.Described basic ring 2 is the annulus that have opening 13, and this is the same with prior art.Described basic ring 2 and annular flange flange 1 preferably are made for one jointly.Locate to be provided with the last groove 4 that radially connects at the two ends upper surface (comprising chamfering 15) of basic ring 2 openings 13, be provided with axial through slot 5, in described axial through slot 5, be provided with the arc body 6 of blocking up at the inner circumferential surface place, two ends of basic ring 2 openings 13.The groove bottom of described axial through slot 5 is an arc surface, and the center of radius of this arc surface overlaps with the center of radius of basic ring 2 external peripheral surfaces.The radius of the external peripheral surface of the described arc body 6 of blocking up equates with the groove bottom radius of axial through slot 5, and both center of radius overlap.The interior arc-shaped surface radius of the described arc body 6 of blocking up equates with the inner circumferential surface radius of basic ring 2, and both center of radius overlap.The upper surface of the described arc body 6 of blocking up and the upper surface of basic ring 2 are on the same plane; And the lower surface of the lower surface of the described arc body 6 of blocking up and basic ring 2 is on the same plane.The external peripheral surface of the described arc body 6 of blocking up contacts with the groove bottom of axial through slot 5.In order to prevent to block up arc body 6 left and right both ends of the surface 21,22 and axially two sides 23,24 of connecting of through slot 5 are stuck, should between block up arc body 6 left and right both ends of the surface 21,22 and axial through slot 5 corresponding bi-side 23,24, leave the gap.In described radially perforation, be provided with scraping ring 8 on the segmental arc in the groove 4.The lower surface of scraping ring 8 contacts (but leaving the fit up gap) with the groove bottom of the last groove 4 that radially connects on the described segmental arc, and the upper surface of its upper surface and basic ring 2 is on the same plane.The radius of the inner arc surface of scraping ring 8 equates with the radius of the exterior arc surface of the arc body 6 of blocking up on the described segmental arc, and both center of radius overlap.The inner arc surface of scraping ring 8 is connected with the top exterior arc surface of the arc body 6 of blocking up on the described segmental arc, and the radius of the external peripheral surface of scraping ring 8 equates with the radius of the external peripheral surface of the annular flange flange 1 of radially outward protrusion on the described segmental arc, and both center of radius overlap.
Fig. 3 is the sectional view along the line A-A intercepting of Fig. 2.As shown in Figure 4, according to embodiment preferred, scraping ring 8 is made for one jointly on block up arc body 6 and the segmental arc.Fig. 5 is the sectional drawing along the line B-B intercepting of Fig. 4.Stuck in order to prevent two sides 27,28 that scraping ring 8 left and right both ends of the surface 25,26 on the segmental arc and the last groove 4 that radially connects connect, should between the corresponding bi-side 27,28 of groove 4 in the 8 left and right both ends of the surface 25,26 of scraping ring on the segmental arc and the perforation radially, leave the gap.At the basic ring 2 and arc body 6 inner peripheral surfaces of blocking up circumferential ring expander 9 is housed, according to preferred scheme, the basic ring 2 and arc body 6 inner peripheral surfaces of blocking up are provided with groove 11, the groove 11 set at basic ring 2 inner circumferential surfaces is on the same radius of a circle with the set groove 11 of arc body 6 inner peripheral surfaces of blocking up, the size and/or the cross section of preferred these two grooves are identical, this circumferential ring expander can accurately be engaged in the groove when guaranteeing thus in groove 11 circumferential ring expander 9 to be set, and making can be arc body 6 fix in position of blocking up by circumferential ring expander 9.Described circumferential ring expander 9 can be helical supporting spring or serpentine spring.The structure shape of helical supporting spring is that helical spring bends to the ring two ends and connects, and in the interior circular hole of helical spring two ends joint rod bolt is housed, and this is identical with helical supporting spring of the prior art.The elastomer that other can certainly be set is used for the arc body 6 of blocking up is fixed on basic ring 2, and the device that the basic ring 2 and arc body 6 radical elasticities of blocking up are increased, but preferably uses helical supporting spring.The central angle alpha of described axial through slot 5 arc length is greater than the central angle β of the last groove 4 that radially connects.The arc length of the described arc body 6 of blocking up is greater than the arc length of scraping ring on the segmental arc 8, as shown in Figure 2.Be provided with at least one draining passage 3 radially at described basic ring 2, a plurality of draining passages 3 radially also can be set, as shown in fig. 1.Draining passage 3 is disposed radially in the middle part of basic ring 2 or bottom, that is, the draining passage is not crossing with the annular flange flange of basic ring.
Fig. 6-9 schematically illustrates second embodiment of seal oil ring of the present invention.
As shown in Figure 6, this embodiment of seal oil ring according to the present invention, the outer peripheral surface of described basic ring 2 only be provided with the annular upper flange 1 that a radially outward protrudes ', this upper flange 1 ' be positioned at upper position of basic ring 2 outer peripheral surfaces.This is that external peripheral surface at described basic ring 2 has in the scheme of the annular flange flange 1 that radially outward protrudes a typical scheme.Basic ring 2 upper surfaces and annular upper flange 1 ' the jointing place of external peripheral surface be provided with chamfering 15, this not only be convenient to the upper surface place, two ends of basic ring 2 openings 13 be provided with radially connect on groove 4, and help installing scraping ring 8 on the segmental arc.Other structure among this embodiment is all identical with the embodiment shown in Fig. 2.Fig. 7 is the sectional view along the line A-A intercepting of Fig. 6; Fig. 8 is that block up scraping ring 8 on arc body 6 and the segmental arc is made for the schematic representation of one jointly; Fig. 9 is the sectional drawing along the line B-B intercepting of Fig. 8.
Figure 10-14 schematically illustrates the 3rd embodiment of seal oil ring of the present invention.
As shown in figure 10, this embodiment of seal oil ring according to the present invention on embodiment basis shown in Figure 6, is provided with the annular lower protruding edge 7 that a radially outward protrudes at basic ring 2 bottom outer peripheral surfaces, as shown in figure 11, Figure 11 is the sectional view along the line A-A intercepting of Figure 10.The radius of the external peripheral surface of described annular lower protruding edge 7 and annular upper flange 1 ' the radius of external peripheral surface equate and both central axes.Described annular lower protruding edge 7 and basic ring 2 are made for one jointly.Jointing place at the external peripheral surface of the lower surface of basic ring 2 and annular lower protruding edge 7 is provided with chamfering down, this not only is convenient at the lower surface place, two ends of basic ring 2 openings 13 the following groove that radially connects is set, and help being provided with scraping ring 10 under the segmental arc, and help reducing the axial height of lower protruding edge 7 and the area of external peripheral surface, can reduce the area and the frictional force that contact with cylinder wall like this.Be provided with the following groove that radially connects at the lower surface place, two ends of basic ring 2 openings 13.Radially following groove of Guan Tonging and the last groove 4 that radially connects are that benchmark constitutes symmetrically with the middle horizontal plane of the axial height of basic ring 2.In the described following groove that radially connects, be provided with scraping ring 10 under the segmental arc.The upper surface of scraping ring 10 contacts (but leaving the fit up gap) with the bottom surface of the following groove that radially connects under the described segmental arc, and the lower surface of its lower surface and basic ring 2 is on the same plane.The radius of the inner arc surface of scraping ring 10 equates with the radius of the exterior arc surface of the arc body 6 of blocking up under the described segmental arc, and both center of radius overlap.The inner arc surface of scraping ring 10 is connected with the bottom exterior arc surface of the arc body 6 of blocking up under the segmental arc.The radius of the external peripheral surface of scraping ring 10 equates with the radius of the external peripheral surface of lower protruding edge 7 under the described segmental arc, and both center of radius overlap.Stuck in order to prevent scraping ring 10 left and right both ends of the surface under the segmental arc with the bi-side that the following groove that radially connects connects, should between the corresponding bi-side of the 10 left and right both ends of the surface of scraping ring under the segmental arc and the following groove of perforation radially, leave the gap.
According to preferred scheme, on block up arc body 6, the segmental arc under scraping ring 8 and the segmental arc scraping ring 10 be made for one jointly, as shown in Figure 12.Figure 13 is the sectional drawing along the line B-B intercepting of Figure 12.In addition, be provided with narrow groove 12 respectively at the place, two ends of arc body 6 inner circumferential surfaces of blocking up, be beneficial to the block up exterior arc surface at place, arc body 6 two ends and the axially contact seal of the surface of contact of through slot 5, and the radical elasticity that transmits circumferential ring expander 9, as shown in Figure 14.
Figure 15-18 schematically illustrates the 4th embodiment of seal oil ring of the present invention.
As shown in figure 15, this embodiment of seal oil ring according to the present invention only is provided with the annular flange 1 that a radially outward protrudes at described basic ring 2 outer peripheral surfaces ", this flange 1 " is positioned at the neutral position of basic ring 2 outer peripheral surfaces.This is that outer peripheral surface at described basic ring 2 has a typical scheme in the scheme of the annular flange flange 1 that radially outward protrudes.In addition, with identical shown in Fig. 2 be, upper surface and annular flange 1 at basic ring 2 " the jointing place of external peripheral surface be provided with chamfering 15; the upper surface place, two ends of basic ring 2 openings 13 be provided with radially connect on groove 4; the inner circumferential surface place, two ends at basic ring 2 openings 13 is provided with axial through slot 5, is provided with the arc body 6 of blocking up in described axial through slot 5, described radially connect on be provided with scraping ring 8 on the segmental arc in the groove 4; these are all with identical described in Fig. 2, as shown in Figure 15.Lower surface and annular flange 1 at basic ring 2 " the jointing place of external peripheral surface be provided with chamfering 16 down.Be provided with the following groove 14 that radially connects at the lower surface place, two ends of described basic ring 2 openings 13, as shown in Figure 18.In the described following groove 14 that radially connects, be provided with scraping ring 10 under the segmental arc, as shown in Figure 16.This be identical shown in above-mentioned Figure 10.Inner peripheral surface at the basic ring 2 and the arc body 6 of blocking up is equipped with circumferential ring expander 9, this be identical shown in above-mentioned Fig. 2.The jointing place of the external peripheral surface of scraping ring 8 is provided with chamfering 18 outside the top on the upper surface of scraping ring 8 and the segmental arc on segmental arc, and the jointing place of the external peripheral surface of scraping ring 10 is provided with chamfering 19 outside the bottom under the lower surface of scraping ring 10 and the segmental arc under segmental arc, as shown in Figure 17.In addition, on the lower surface of the basic ring of seal oil ring of the present invention, be provided with one or more leakage of oil passages that radially connect.
Claims (16)
1. seal oil ring, comprise a basic ring (2) that has opening (13), the outer peripheral surface of this basic ring (2) has the annular flange flange (1) that radially outward protrudes, it is characterized in that, be provided with the last groove (4) that radially connects at the upper surface place, two ends of basic ring (2) opening (13), inner circumferential surface place, two ends at basic ring (2) opening (13) is provided with axial through slot (5), in this axial through slot (5), be provided with the arc body of blocking up (6), in described radially perforation, be provided with scraping ring on the segmental arc (8) in the groove (4), be provided with circumferential ring expander (9) at basic ring (2) and the arc body of blocking up (6) inner peripheral surface.
2. seal oil ring according to claim 1 is characterized in that, described basic ring (2) outer peripheral surface only is provided with the annular upper flange (1 ') that a radially outward protrudes, and this upper flange (1 ') is positioned at the upper position of basic ring (2) outer peripheral surface.
3. seal oil ring according to claim 1 is characterized in that, the outer peripheral surface of described basic ring (2) only is provided with the annular flange that radially outward protrudes, and (1 "), (1 ") is positioned at the neutral position of basic ring (2) outer peripheral surface to this flange.
4. seal oil ring according to claim 1 is characterized in that, is provided with chamfering (15) in the jointing place of the external peripheral surface of basic ring (2) upper surface and annular flange flange (1).
5. seal oil ring according to claim 2 is characterized in that, is provided with chamfering (15) in the jointing place of the external peripheral surface of basic ring (2) upper surface and annular upper flange (1 ').
6. seal oil ring according to claim 3 is characterized in that, (jointing place of the external peripheral surface of 1 ") is provided with chamfering (15) in the upper surface of basic ring (2) and annular flange; (jointing place of the external peripheral surface of 1 ") is provided with chamfering (16) down in the lower surface of basic ring (2) and annular flange.
7. according to claim 1,2,4 or 5 described seal oil rings, it is characterized in that, be provided with the annular lower protruding edge (7) that a radially outward protrudes in the bottom of basic ring (2) outer peripheral surface.
8. according to the described seal oil ring of one of claim 1 to 7, it is characterized in that scraping ring (8) is made for one jointly on arc body of blocking up (6) and the segmental arc.
9. according to the described seal oil ring of one of claim 1 to 8, it is characterized in that the jointing place of the external peripheral surface of scraping ring (8) is provided with chamfering outside the top (18) on the upper surface of scraping ring on described segmental arc (8) and the segmental arc.
10. according to the described seal oil ring of one of claim 1 to 9, it is characterized in that, be provided with the following groove that radially connects at the lower surface place, two ends of basic ring (2) opening (13), in this time groove, be provided with scraping ring under the segmental arc (10).
11. seal oil ring according to claim 10 is characterized in that, on the arc body of blocking up (6), the segmental arc under scraping ring (8) and the segmental arc scraping ring (10) be made for one jointly.
12., it is characterized in that the jointing place of the external peripheral surface of scraping ring (10) is provided with chamfering outside the bottom (19) under the lower surface of scraping ring under segmental arc (10) and the segmental arc according to claim 10 or 11 described seal oil rings.
13. according to the described seal oil ring of one of claim 1 to 12, it is characterized in that, axially the central angle alpha of through slot (5) arc length is greater than the central angle β of the last groove (4) that radially connects, and the arc length of the described arc body of blocking up (6) is greater than the arc length of scraping ring on the segmental arc (8).
14. according to the described seal oil ring of one of claim 1 to 13, it is characterized in that, be provided with narrow groove (12) respectively at the place, two ends of the arc body of blocking up (6) inner circumferential surface.
15., it is characterized in that according to the described seal oil ring of one of claim 1 to 14, be provided with groove (11) at basic ring (2) and the arc body of blocking up (6) inner peripheral surface, circumferential ring expander (9) is housed in this groove (11).
16., it is characterized in that described basic ring (2) is provided with at least one draining passage (3) radially according to one of aforesaid right requirement described seal oil ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610167926 CN101042191A (en) | 2005-12-25 | 2006-12-22 | Sealed oil ring |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510097149 | 2005-12-25 | ||
| CN200510097149.7 | 2005-12-25 | ||
| CN 200610167926 CN101042191A (en) | 2005-12-25 | 2006-12-22 | Sealed oil ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101042191A true CN101042191A (en) | 2007-09-26 |
Family
ID=38807893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610167926 Pending CN101042191A (en) | 2005-12-25 | 2006-12-22 | Sealed oil ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101042191A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009043227A1 (en) * | 2007-10-06 | 2009-04-09 | Xiuming Yu | A sealing oil ring |
| CN104755817A (en) * | 2012-10-26 | 2015-07-01 | 伯克哈特压缩机股份公司 | Piston ring |
-
2006
- 2006-12-22 CN CN 200610167926 patent/CN101042191A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009043227A1 (en) * | 2007-10-06 | 2009-04-09 | Xiuming Yu | A sealing oil ring |
| CN104755817A (en) * | 2012-10-26 | 2015-07-01 | 伯克哈特压缩机股份公司 | Piston ring |
| CN104755817B (en) * | 2012-10-26 | 2016-03-09 | 伯克哈特压缩机股份公司 | Piston ring |
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