CN1776263A - Forced sealing oil ring - Google Patents
Forced sealing oil ring Download PDFInfo
- Publication number
- CN1776263A CN1776263A CN 200510078422 CN200510078422A CN1776263A CN 1776263 A CN1776263 A CN 1776263A CN 200510078422 CN200510078422 CN 200510078422 CN 200510078422 A CN200510078422 A CN 200510078422A CN 1776263 A CN1776263 A CN 1776263A
- Authority
- CN
- China
- Prior art keywords
- basic ring
- groove
- axially
- ring
- inner circumferential
- 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.)
- Pending
Links
Images
Landscapes
- Sealing Devices (AREA)
Abstract
The invention provides a forced sealing oil ring which is suitable for a piston type gas engine and an air compressor piston ring group, characterized in that a groove holding the helical supporting spring is arranged at the upper position in the axial direction inside the inner circumference of the base ring. A helical supporting spring arranged in the groove is able to make the contact specific pressure uniform between the outer circumference surface of the scraper ring, the upper convex edge and the lower convex edge of the sealing oil ring and the cylinder wall and largely improve the sealing performance of the sealing oil ring and prevent the asymmetry abrasion and damage of the sealing oil ring.
Description
Technical field
The present invention relates to a kind of seal oil ring, relate in particular to the seal oil ring that is used for internal-combustion piston engine or air-compressor piston ring group.
Background technique
At present, the seal oil ring structure that is used for internal-combustion piston engine piston ring group is, comprise a slotted oil control ring, the external peripheral surface top of this oil ring has the annular epirelief eaves (going up scraping land) that a radially outward protrudes, its external peripheral surface bottom has protruding eaves (following scraping land) under the annular that radially outward protrudes, be provided with the draining passage on basic ring, be provided with a groove that holds helical supporting spring in the neutral position of basic ring inner circumferential surface, device has helical supporting spring in groove.Has axially annular boss protruding upward in the upper surface inboard of basic ring, be provided with at least one in the external peripheral surface outside of boss and scrape loop, in order to make oil ring have excellent sealing performance, reduce the area of contact of oil ring and cylinder wall simultaneously, the power of reducing friction, when the design seal oil ring, the area sum of scraping loop external peripheral surface and epirelief eaves external peripheral surface, inevitable area greater than following protruding eaves external peripheral surface.In general design, scraping the axial height of loop external peripheral surface, the axial height of epirelief eaves external peripheral surface and the axial height of following protruding eaves external peripheral surface all equates, the epirelief eaves external peripheral surface that is seal oil ring accounts for 2/3rds of seal oil ring and cylinder wall gross contact area with the area of scraping the external peripheral surface sum of loop, and the area of protruding eaves external peripheral surface accounts for 1/3rd of seal oil ring and cylinder wall gross contact area under the seal oil ring.The pressure that contacts with cylinder wall in seal oil ring mainly comes from the elastic force of helical supporting spring.Because of helical supporting spring is not located at the axial rational position on the upper side of seal oil ring, there is following shortcoming in this seal oil ring: 1. the specific pressure of the external peripheral surface of the epirelief eaves external peripheral surface of this oil ring, the external peripheral surface of scraping loop and following protruding eaves and cylinder wall surface of contact is inhomogeneous, the epirelief eaves is little with respect to following protruding eaves external peripheral surface and casing wall specific contact pressure with the external peripheral surface of scraping loop and casing wall specific contact pressure, and the oil ring sealing effect is poor.2. caused and scraped loop, epirelief eaves and uneven wearing and tearing of protruding eaves external peripheral surface and damage down.
Summary of the invention
The purpose of this invention is to provide a kind of seal oil ring, this oil ring can make the external peripheral surface of scraping loop, epirelief eaves and following protruding eaves evenly equate with the specific contact pressure of casing wall, to improve the sealability of seal oil ring, prevents the uneven wear of seal oil ring.
The object of the present invention is achieved like this:
The basic ring that comprises a band opening, the external peripheral surface top of basic ring has the annular epirelief eaves that a radially outward protrudes, has protruding eaves under the annular that radially outward protrudes in the external peripheral surface bottom of basic ring, described basic ring is provided with the draining passage, has axially annular boss protruding upward in the upper surface inboard of basic ring, be provided with at least one in the external peripheral surface outside of boss and scrape loop, the opening of the described opening of scraping loop and the basic ring 180 ° of angles of staggering mutually, be provided with groove at the basic ring inner circumferential surface, the described axial position of crossing the groove symmetrical line, be located at axially portion position (position of whole oil ring axial height more than 1/2nd that comprises basic ring and boss) on the upper side of basic ring, in groove, install helical supporting spring.
Comprise a basic ring that has opening, the external peripheral surface top of basic ring has the annular epirelief eaves that a radially outward protrudes, has protruding eaves under the annular that radially outward protrudes in the external peripheral surface bottom of basic ring, described basic ring is provided with the draining passage, has axially annular boss protruding upward in the upper surface inboard of basic ring, be provided with at least one in the external peripheral surface outside of boss and scrape loop, the opening of the described opening of scraping loop and the basic ring 180 ° of angles of staggering mutually, be provided with radially to projecting inward protruding key in the position of the inner circumferential surface of scraping loop apart from 180 ° of angles of opening, boss at basic ring aperture position place is provided with corresponding keyway, protruding key is equipped mutually with keyway, be provided with groove at the basic ring inner circumferential surface, the described axial position of crossing the groove symmetrical line, be located at axially portion position (position of whole oil ring axial height more than 1/2nd that comprises basic ring and boss) on the upper side of basic ring, in groove, install helical supporting spring.
The described axial height of scraping the loop external peripheral surface is h
1, the axial height of epirelief eaves external peripheral surface is h
2, the axial height of following protruding eaves external peripheral surface is h
3And suppose to scrape loop external peripheral surface axial height h
1With epirelief eaves external peripheral surface axial height h
2Sum (h
1+ h
2) last rubbing surface (with casing wall rubbing surface mutually) neutral position, and down protruding eaves external peripheral surface axial height following rubbing surface neutral position between distance be H.
The axial position of the set groove of described basic ring inner circumferential surface, for crossing the symmetrical line of groove, last rubbing surface axially in the middle of with following rubbing surface axial middle between axially 2/3rds H positions on the upper side of distance H.
The axial position of the set groove of described basic ring inner circumferential surface, for crossing the symmetrical line of groove, last rubbing surface axially in the middle of with following rubbing surface axial middle between axially 2/3rds H ± 0.1mm position on the upper side of distance H.
The axial position of the set groove of described basic ring inner circumferential surface, for crossing the symmetrical line of groove, last rubbing surface axially in the middle of with following rubbing surface axial middle between axially 2/3rds H ± 0.2mm position on the upper side of distance H.
The axial position of the set groove of described basic ring inner circumferential surface, for crossing the symmetrical line of groove, last rubbing surface axially in the middle of with following rubbing surface axial middle between axially 2/3rds H ± 0.3mm position on the upper side of distance H.
The axial position of the set groove of described basic ring inner circumferential surface, for crossing the symmetrical line of groove, last rubbing surface axially in the middle of with following rubbing surface axial middle between axially 2/3rds H ± 0.4mm position on the upper side of distance H.
The axial position of the set groove of described basic ring inner circumferential surface, for crossing the symmetrical line of groove, last rubbing surface axially in the middle of with following rubbing surface axial middle between axially 2/3rds H ± 0.5mm position on the upper side of distance H.
Because seal oil ring of the present invention is the area that contacts with casing wall according to the sealing oil ring and compares pressure request, area according to protruding eaves external peripheral surface under the area ratio of the area of scraping the loop external peripheral surface and epirelief eaves external peripheral surface is big, and sealing surface is in the position of seal oil ring axial distribution situation on the upper side, and determine the basic ring inner circumferential surface axially on the upper side the position groove is set, in groove, install helical supporting spring, guaranteed to scrape loop, epirelief eaves and following protruding eaves external peripheral surface and casing wall specific contact pressure are evenly reasonable, can increase substantially the sealability of seal oil ring, and can prevent the uneven wear and the damage of seal oil ring, also can increase substantially the initial fitting property of seal oil ring and casing wall.
Description of drawings
Fig. 1 is an embodiment's of a seal oil ring of the present invention partial sectional view (schematic representation);
Fig. 2 is an embodiment's of a seal oil ring of the present invention partial sectional view (schematic representation);
Fig. 3 scrapes the inner circumferential surface of loop in position, 180 ° of angles of distance opening to be provided with radially plan view (schematic representation) to projecting inward protruding key 9;
Fig. 4 is the plan view (schematic representation) of the basic ring part that is provided with keyway 10 of the boss at basic ring aperture position place;
Fig. 5 is the axial position of seal oil ring of the present invention at the set groove of basic ring inner circumferential surface, for crossing the symmetrical line 11 of groove, last rubbing surface axially in the middle of with following rubbing surface axial middle between the axially partial sectional view of 2/3rds H positions (schematic representation) on the upper side of distance H.
Embodiment
As shown in Figure 1, according to seal oil ring of the present invention, comprise a basic ring 6 that has opening, the top shown in the basic ring external peripheral surface figure has the annular epirelief eaves 8 with the concentric setting of described basic ring.Has protruding eaves 7 under the annular with the concentric setting of described basic ring in the bottom shown in the basic ring external peripheral surface figure.Described basic ring 6 is provided with draining passage 5.Have axially annular boss 2 protruding upward in the upper surface inboard of basic ring, boss 2 is concordant with the internal surface of basic ring 6 with basic ring 6 coaxial settings and its internal surface.Described epirelief eaves 8, following protruding eaves 7 and boss 2 and basic ring 6 are one.Be provided with one in the outside of boss 2 and scrape loop 1, this thickness of scraping loop 1 equals the height of boss 2, and its internal diameter equates with the external diameter of boss 2, and its external diameter equates with the external diameter of epirelief eaves 8.Basic ring 6 shown in the figure all is the annulus that opening is arranged with scraping loop 1, and this is the same with prior art.The opening of scraping on loop 1 and the basic ring 6 is set like this according to the present invention, 180 ° of (not shown)s even it staggers on circumference mutually, but also can be 120 °-180 °, this setting type is the same in following embodiment, because of than, will this not given unnecessary details below.Be provided with groove 3 at basic ring 6 inner circumferential surfaces, the described axial position of crossing groove 3 symmetrical line 11 is located at the axially portion position on the upper side of basic ring 6.Described its position of portion on the upper side can be 1/3rd 2/six to three. three the position (not specifically illustrating among the figure) on the upper side of whole oil ring axial height.At 3 li devices of groove helical supporting spring 4.Described helical supporting spring 4 bends to the annulus circle for helical spring, and two ends connect, and installs rod bolt in the endoporus at helical spring two ends, and this is identical with prior art.
As shown in Figure 2, according to seal oil ring of the present invention, the basic ring 6 that comprises a band opening, and epirelief eaves 8, following protruding eaves 7, draining passage 5, boss 2, scrape loop 1, the structure setting of groove 3 and helical supporting spring 4, all the embodiment with the seal oil ring shown in Fig. 1 is identical, and on seal oil ring embodiment's shown in Figure 1 basis, the structure that increases is set to: scraping loop 1 inner circumferential surface apart from position, 180 ° of angles of opening, be provided with radially to projecting inward protruding key 9, see for details among Fig. 3 shown in, boss 2 at basic ring 6 aperture position places is provided with keyway 10, see for details among Fig. 4 shown in, scrape in the loop protruding key 9 set in the circle and basic ring opening boss 2 set keyways 10 and be equipped with mutually, fixedly to scrape the aperture position of loop and basic ring.
As shown in Figure 5,, comprise the basic ring 6 of a band opening, and the structure setting of epirelief eaves 8, following protruding eaves 7, draining passage 5, boss 2 and scraping blade 1 is all identical with the embodiment of the seal oil ring shown in Fig. 1 according to seal oil ring of the present invention.The present embodiment seal oil ring is with respect to the seal oil ring embodiment shown in Fig. 1, having special typical position is, the axial position of the set groove 3 of described basic ring 6 inner circumferential surfaces, for crossing the symmetrical line 11 of groove 3, last rubbing surface axially in the middle of with the axial centre of following rubbing surface between axially 2/3rds H positions on the upper side of distance H, at 3 li devices of groove helical supporting spring 4, helical spring elastic force is evenly distributed in scrapes on the external peripheral surface of loop 1, epirelief eaves 8 and following protruding eaves 7, and make its surface and specific contact pressure of casing wall be evenly reasonably distribution.Like this, in general design, can make epirelief eaves, following protruding eaves and scrape the loop external peripheral surface evenly to equate with cylinder wall surface of contact specific pressure.
Claims (8)
1, a kind of seal oil ring, comprise a basic ring (6) that has opening, the external peripheral surface top of basic ring (6) has the annular epirelief eaves (8) that a radially outward protrudes, has protruding eaves (7) under the annular that radially outward protrudes in the external peripheral surface bottom of basic ring (6), described basic ring (6) is provided with draining passage (5), has axially annular boss (2) protruding upward in the upper surface inboard of basic ring (6), be provided with at least one in the external peripheral surface outside of boss (2) and scrape loop (1), the opening of the described opening of scraping loop (1) and basic ring (6) the 180 ° of angles of staggering mutually, it is characterized in that, be provided with groove (3) at basic ring (6) inner circumferential surface, the described axial position of crossing groove (3) symmetrical line (11), be located at the axially portion position on the upper side of basic ring (6), install helical supporting spring (4) in groove (3) lining.
2, a kind of seal oil ring, comprise a basic ring (6) that has opening, the external peripheral surface top of basic ring (6) has the annular epirelief eaves (8) that a radially outward protrudes, has protruding eaves (7) under the annular that radially outward protrudes in the external peripheral surface bottom of basic ring (6), described basic ring (6) is provided with draining passage (5), has axially annular boss (2) protruding upward in the upper surface inboard of basic ring (6), be provided with at least one in the external peripheral surface outside of boss (2) and scrape loop (1), the opening of the described opening of scraping loop (1) and basic ring (6) the 180 ° of angles of staggering mutually, be provided with radially to projecting inward protruding key (9) in the position of the inner circumferential surface of scraping loop (1) apart from 180 ° of angles of opening, boss (2) at basic ring (6) aperture position place is provided with corresponding keyway (10), protruding key (9) is equipped mutually with keyway (10), it is characterized in that, be provided with groove (3) at basic ring (6) inner circumferential surface, the described axial position of crossing groove (3) symmetrical line (11), be located at the axially portion position on the upper side of basic ring (6), install helical supporting spring (4) in groove (3) lining.
3, seal oil ring according to claim 1 and 2, it is characterized in that, the axial position of the set groove of described basic ring (6) inner circumferential surface (3), for crossing the symmetrical line (11) of groove (3), last rubbing surface axially in the middle of with following rubbing surface axial middle between axially 2/3rds H positions on the upper side of distance H.
4, seal oil ring according to claim 1 and 2, it is characterized in that, the axial position of the set groove of described basic ring (6) inner circumferential surface (3), for crossing the symmetrical line (11) of groove (3), last rubbing surface axially in the middle of with following rubbing surface axial middle between axially 2/3rds H ± 0.1mm position on the upper side of distance H.
5, seal oil ring according to claim 1 and 2, it is characterized in that, the axial position of the set groove of described basic ring (6) inner circumferential surface (3), for crossing the symmetrical line (11) of groove (3), last rubbing surface axially in the middle of with following rubbing surface axial middle between axially 2/3rds H ± 0.2mm position on the upper side of distance H.
6, seal oil ring according to claim 1 and 2, it is characterized in that, the axial position of the set groove of described basic ring (6) inner circumferential surface (3), for crossing the symmetrical line (11) of groove (3), last rubbing surface axially in the middle of with following rubbing surface axial middle between axially 2/3rds H ± 0.3mm position on the upper side of distance H.
7, seal oil ring according to claim 1 and 2, it is characterized in that, the axial position of the set groove of described basic ring (6) inner circumferential surface (3), for crossing the symmetrical line (11) of groove (3), last rubbing surface axially in the middle of with following rubbing surface axial middle between axially 2/3rds H ± 0.4mm position on the upper side of distance H.
8, seal oil ring according to claim 1 and 2, it is characterized in that, the axial position of the set groove of described basic ring (6) inner circumferential surface (3), for crossing the symmetrical line (11) of groove (3), last rubbing surface axially in the middle of with following rubbing surface axial middle between axially 2/3rds H ± 0.5mm position on the upper side of distance H.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510078422 CN1776263A (en) | 2004-11-16 | 2005-06-15 | Forced sealing oil ring |
| PCT/CN2005/001923 WO2006053489A1 (en) | 2004-11-16 | 2005-11-15 | Oil sealing ring |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410094841 | 2004-11-16 | ||
| CN200410094841.X | 2004-11-16 | ||
| CN 200510078422 CN1776263A (en) | 2004-11-16 | 2005-06-15 | Forced sealing oil ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1776263A true CN1776263A (en) | 2006-05-24 |
Family
ID=36765925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510078422 Pending CN1776263A (en) | 2004-11-16 | 2005-06-15 | Forced sealing oil ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1776263A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286002A (en) * | 2015-06-09 | 2017-01-04 | 陆懋增 | A kind of internal combustion engine L-type multipiece ring |
| CN108779856A (en) * | 2016-06-01 | 2018-11-09 | 联邦摩高布尔沙伊德公司 | Compressed oil controls piston ring |
| CN110486182A (en) * | 2017-08-29 | 2019-11-22 | 熵零技术逻辑工程院集团股份有限公司 | A kind of internal combustion engine |
-
2005
- 2005-06-15 CN CN 200510078422 patent/CN1776263A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286002A (en) * | 2015-06-09 | 2017-01-04 | 陆懋增 | A kind of internal combustion engine L-type multipiece ring |
| CN108779856A (en) * | 2016-06-01 | 2018-11-09 | 联邦摩高布尔沙伊德公司 | Compressed oil controls piston ring |
| CN108779856B (en) * | 2016-06-01 | 2020-02-14 | 联邦摩高布尔沙伊德公司 | Compressed oil control piston ring |
| CN110486182A (en) * | 2017-08-29 | 2019-11-22 | 熵零技术逻辑工程院集团股份有限公司 | A kind of internal combustion engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1776263A (en) | Forced sealing oil ring | |
| CN205824240U (en) | Hard seal ball valve seat | |
| CN101328935B (en) | Mechanical seal suspension bearing seat | |
| CN200989509Y (en) | Spigot-and-socket multifunction fast urgent repair device | |
| CN212839382U (en) | Piston seal ring | |
| CN2258562Y (en) | T-type ultrahigh pressure hydraulic control unloader valve | |
| CN1102210C (en) | Enforced seal oil ring | |
| CN1239200A (en) | Oil ring with forced sealing | |
| CN2599259Y (en) | Energy saving wear-resisting integral combined piston ring oil ring | |
| CN201746256U (en) | Eccentric wear resistance center swivel joint for wheel crane | |
| CN105194927A (en) | Combined type oil filter | |
| CN2795575Y (en) | Buried plate gate valve | |
| CN2918900Y (en) | Fibulae type sealing oil ring | |
| CN205190736U (en) | Many times way metal seal gaskets | |
| CN1804438A (en) | Anti-scuffing pressure working cylinder | |
| CN202501123U (en) | Joint for connecting water pump housing and pipeline in a sealing manner | |
| CN215804897U (en) | Oil cup convenient to assemble | |
| CN202391720U (en) | Threaded tight-connection water pump shell | |
| CN217651858U (en) | Resistance to compression type recycled concrete well lid | |
| CN216342475U (en) | Sealed combination formula piston ring that seals effectually | |
| CN212838715U (en) | Piston rod combined sealing ring | |
| CN2871984Y (en) | Double-slotted piston | |
| CN219993981U (en) | Double-sealing chemical pump | |
| CN2903609Y (en) | Bottom valve | |
| CN214352158U (en) | Sleeve dismounting tool with screw hole |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |