CN214698090U

CN214698090U - Direction-recognizable doctor blade ring and three-combination piston oil ring

Info

Publication number: CN214698090U
Application number: CN202120222252.4U
Authority: CN
Inventors: 程伟胜; 金鹏; 陈春; 余昳; 孙丛宝
Original assignee: Anqing TP Goetze Piston Ring Co Ltd
Current assignee: Anqing TP Goetze Piston Ring Co Ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-11-12
Anticipated expiration: 2031-01-25

Abstract

The utility model discloses a doctor-bar ring and three combination piston oil rings of distinguishable direction, including the doctor-bar ring base member that the upper and lower face is parallel to each other, the height of doctor-bar ring base member is H, and H is 0.3 ~ 0.6mm, the outer disc of doctor-bar ring base member is asymmetric bucket face structure, the peak of the bucket face structure of outer disc is close to the lower bottom surface of doctor-bar ring base member, the recess that is used for direction identification is offered to the upper surface of doctor-bar ring base member, the recess is located the 1/3 ~ 2/3 within range of doctor-bar ring base member width. The utility model discloses simple structure makes things convenient for people's eye equipment or automatic direction of establishing other machine to establish other, has reduced the anti-risk of dress of asymmetric doctor blade ring direction.

Description

Direction-recognizable doctor blade ring and three-combination piston oil ring

Technical Field

The utility model relates to a piston ring field specifically is a doctor-bar ring and three combination piston oil rings of distinguishable direction.

Background

The three-combination oil ring has the characteristics of excellent side surface sealing performance, light weight design and the like, is widely adopted, and particularly becomes a mainstream design on a high-speed engine.

The three-combination piston ring oil ring consists of an upper scraping ring, a lower scraping ring and a middle lining ring, and outward tension is provided for the scraping rings through the middle lining ring, so that the excircle of the scraping rings is always kept in high fit with the cylinder wall, and the function of scraping oil on the cylinder wall is achieved during up-and-down motion. In order to improve the oil scraping and controlling effect of the three-combination oil ring, a scraper oil ring with a deviated barrel surface is disclosed in the previous patent (patent publication No. CN207847787U), however, because the height of the scraper ring is thin, the size of the barrel surface is in the order of micrometers, and the scraper ring cannot be identified by human eyes, the side of the large barrel surface and the side of the small barrel surface are difficult to distinguish in the process of processing, installation and use, misoperation is easy to occur, once the side of the large barrel surface and the side of the small barrel surface of the scraper ring are reversed in the installation process, the oil consumption of an engine is seriously influenced, and cylinder pulling is caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a doctor-bar ring and three combination piston oil rings of distinguishable direction to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an orientable doctor blade ring comprising: the scraper ring base member that the upper and lower face is parallel to each other, the height of scraper ring base member is H, and H is 0.3 ~ 0.6mm, the outer disc of scraper ring base member is asymmetric bucket face structure, the peak of the bucket face structure of outer disc is close to the lower bottom surface of scraper ring base member, the upper surface of scraper ring base member is seted up the recess that is used for direction identification, the recess is located the 1/3 ~ 2/3 within range of scraper ring base member width.

As a further aspect of the present invention: the depth of the groove is t, the width of the groove is w, t is 0.02-0.10 mm, and w is 0.05-0.30 mm.

As a further aspect of the present invention: the distance from the highest point of the barrel surface structure of the outer circular surface to the horizontal center line of the scraper ring base body is H1, and H1 is 0.15-0.25H.

As a further aspect of the present invention: the vertical distance from the starting position of the barrel surface structure to the lower bottom surface of the scraper ring matrix is H2, H2 is 0.65H-0.85H, the vertical distance from the ending position of the barrel surface structure to the lower bottom surface of the scraper ring matrix is H3, and H3 is 0.15H-0.3H; the horizontal distance from the starting position of the barrel surface structure to the highest point of the barrel surface structure is t1, the horizontal distance from the ending position of the barrel surface structure to the highest point of the barrel surface structure is t2, and t2 is 0-5 microns.

As a further aspect of the present invention: when the height H of the scraper ring substrate is less than 0.4mm, t1 is 10-25 μm; when the height H of the scraper ring matrix is more than or equal to 0.4mm, t1 is 15-35 mu m.

As a further aspect of the present invention: the inner circle surface of the scraping ring base body is of a symmetrical cambered surface structure.

As a further aspect of the present invention: the cross section of the groove is rectangular or circular arc.

As a further aspect of the present invention: any one of a nitride layer, a chromium coating layer, a CrN layer, a DLC layer and a ceramic composite coating layer is arranged on the upper surface, the lower bottom surface, the outer circular surface and the inner circular surface of the scraping ring matrix.

A three-combination piston oil ring, comprising: the scraper ring is characterized by comprising an I-shaped lining ring and the scraper rings arranged on the upper surface and the lower surface of the lining ring.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a seted up the recess on the upper surface of doctor-bar ring body is in the right position, make things convenient for people's eye equipment or the automatic orientation of establishing other machine to establish other, reduced the risk that asymmetric doctor-bar ring orientation dress is reversed, simultaneously the utility model discloses asymmetric bucket face structure that outer disc adopted, the last bucket face degree that is close to doctor-bar ring body upper surface is greater than the bucket face degree that is close to the lower bottom surface of doctor-bar ring base member, and the peak of the bucket face structure of outer disc is close to the lower bottom surface of doctor-bar ring base member for the ascending cloth oil area of doctor-bar ring increases, has effectively promoted the oil film thickness homogeneity of lubricating oil, has improved lubricated condition, compares with traditional doctor-bar ring, and excircle downside bucket face cambered surface is shorter, is favorable to scraping oil. Adopt the asymmetric scraper ring of this patent to solve the easy anti-problem of adorning of asymmetric scraper ring direction, and the frizing is effectual, and is showing the machine oil consumption effect that improves the engine.

Drawings

FIG. 1 is a schematic structural view of a groove with a circular arc-shaped cross section;

FIG. 2 is a schematic structural view of a groove with a rectangular cross section;

FIG. 3 is a schematic view of the assembly of the scraper ring.

In the figure: 1-scraping ring base body, 2-groove, 3-lining ring and 4-scraping ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and 2, in an embodiment of the present invention, a direction-recognizable doctor blade ring includes a doctor blade ring body 1 having upper and lower surfaces parallel to each other, a height of the doctor blade ring body is H, H is 0.3 to 0.6mm, an outer circular surface of the doctor blade ring body 1 is an asymmetric barrel surface structure, a highest point of the barrel surface structure of the outer circular surface is close to a lower bottom surface of the doctor blade ring body 1, a groove 2 for direction recognition is provided on the upper surface of the doctor blade ring body, and the groove is located in 1/3 to 2/3 ranges of a width of the doctor blade ring body 1.

Specifically, referring to fig. 1 and 2, the cross section of the groove 2 is rectangular or circular, the depth of the groove 2 is t, the width of the groove 2 is w, t is 0.02-0.10 mm, and w is 0.05-0.30 mm, the arrangement of the groove facilitates the direction identification of human eye equipment or an automatic identification machine, and the risk of reverse installation of the asymmetric blade ring is reduced.

Specifically, referring to fig. 1 and 2, the inner circular surface of the blade ring base 1 is a symmetrical arc structure, the distance from the highest point of the barrel surface structure of the outer circular surface of the blade ring base 1 to the horizontal center line of the blade ring base 1 is H1, H1 is 0.15H-0.25H, the vertical distance from the beginning position of the barrel surface structure to the lower bottom surface of the blade ring base 1 is H2, H2 is 0.65H-0.85H, the vertical distance from the ending position of the barrel surface structure to the lower bottom surface of the blade ring base 1 is H3, and H3 is 0.15H-0.3H; the horizontal distance from the starting position of the barrel surface structure to the highest point of the barrel surface structure is t1, the horizontal distance from the ending position of the barrel surface structure to the highest point of the barrel surface structure is t2, t2 is 0-5 mu m, and when the height H of the scraper ring substrate 1 is less than 0.4mm, t1 is 10-25 mu m; when the height H of the scraper ring matrix is more than or equal to 0.4mm, t1 is 15-35 mu m. Preferably, when the height H of the scraper ring base body 1 is less than 0.4mm, the position where the bucket surface structure starts is at the position 2/3H from the lower bottom surface of the scraper ring base body 1, and the position where the bucket surface structure ends is at the position 3/10H from the lower bottom surface of the scraper ring base body 1; when the high H of doctor blade ring base member 1 is greater than or equal to 0.4mm, the position that bucket face structure began is at the distance the 3/4H position department of bottom surface under the doctor blade ring base member 1, the position that bucket face structure ended is at the distance the 1/4H position department of bottom surface under the doctor blade ring base member 1, the utility model discloses a setting of asymmetric bucket face structure size for the doctor blade ring goes upward the increase of oil distribution area, has effectively promoted the oil film thickness homogeneity of lubricating oil, has improved lubricated condition, compares with traditional doctor blade ring, and the bucket face cambered surface of excircle downside is shorter, is favorable to scraping oil. Compared with the traditional scraper combined oil ring, the scraper combined oil ring can reduce the oil consumption by more than 20%.

Referring to fig. 3, a three-combination piston oil ring includes an i-shaped liner ring 3 and asymmetric vane rings 4 disposed on the upper and lower surfaces of the liner ring.

The utility model discloses novel structure, the operation is stable, the utility model discloses when using, like figure 3, with asymmetric two liner ring 1 combination of scraping ring 4 and I shape together, put into piston oil ring groove can.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An orientable doctor blade ring, comprising: the scraper ring base member (1) that the lower surface is parallel to each other, the height of scraper ring base member is 0.3 ~ 0.6mm for H, the outer disc of scraper ring base member (1) is asymmetric barrel face structure, the peak of the barrel face structure of outer disc is close to the lower bottom surface of scraper ring base member (1), recess (2) that are used for direction identification are offered to the upper surface of scraper ring base member, the recess is located 1/3 ~ 2/3 within range of scraper ring base member (1) width.

2. An orientable doctor blade ring according to claim 1, characterised in that the grooves (2) have a depth t and a width w, t being 0.02-0.10 mm and w being 0.05-0.30 mm.

3. The blade ring of claim 1, wherein the distance from the highest point of the cylindrical surface structure of the outer circular surface to the horizontal center line of the blade ring base (1) is H1, and H1 is 0.15H-0.25H.

4. The blade ring of claim 1, wherein the barrel face structure starts at a vertical distance H2 from the bottom surface of the blade ring base (1), H2 is 0.65H-0.85H, the barrel face structure ends at a vertical distance H3 from the bottom surface of the blade ring base (1), H3 is 0.15H-0.3H; the horizontal distance from the starting position of the barrel surface structure to the highest point of the barrel surface structure is t1, the horizontal distance from the ending position of the barrel surface structure to the highest point of the barrel surface structure is t2, and t2 is 0-5 microns.

5. An orientable blade ring according to claim 4, wherein t1 is 10-25 μm when the height H of the blade ring base (1) is < 0.4 mm; when the height H of the blade ring base body (1) is larger than or equal to 0.4mm, t1 is 15-35 mu m.

6. An orientable doctor blade ring according to claim 1, characterized in that the inner circumference of the doctor blade ring base body (1) is a symmetrical arc structure.

7. An orientable doctor blade ring according to claim 1, characterised in that the cross-section of the groove (2) is rectangular or circular.

8. An orientable doctor blade ring according to claim 1, characterized in that the upper, lower, outer and inner circumferential surfaces of the doctor blade ring base (1) are provided with any of a nitride layer, a chromium coating, a CrN layer, a DLC layer, a ceramic composite coating.

9. A three-combination piston oil ring, comprising: -shaped bushing ring (3), and-a doctor blade ring (4) according to any of claims 1-8 arranged on the upper and lower surfaces of the bushing ring.