CN205025626U - Oil scraper ring - Google Patents
Oil scraper ring Download PDFInfo
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- CN205025626U CN205025626U CN201520670659.8U CN201520670659U CN205025626U CN 205025626 U CN205025626 U CN 205025626U CN 201520670659 U CN201520670659 U CN 201520670659U CN 205025626 U CN205025626 U CN 205025626U
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- ladder surface
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Abstract
The utility model discloses an oil scraper ring, including the ring body, the ring body include the two rings shape that relative up -down set up the terminal surface, and connect two the terminal surface be annular radial outside working face and inside circumference face, radial outside working face is in the interval is provided with at least a set of boss loop structure, every group in the the central axis direction of ring body the boss loop constructs two boss rings that set up including upper and lower interval, every the top surface of boss ring is all followed the the central axis orientation of ring body forms the cascaded surface, and with a set of during the boss loop constructs two the external diameter of the cascaded surface of boss ring reduces for the direction along keeping away from the other side, this oil scraper ring, not only can reduce friction the loss, guarantee the frizing effect, direction recognition, production, convenient to use process, need not to carry on in the use moreover.
Description
Technical field
The utility model relates to piston ring structure technical field, particularly relates to a kind ofly reduce sliding friction and reduce the scraper ring of lubrication oil consumption.
Background technique
In engine piston ring member, scraper ring is arranged at the inner side of cylinder sleeve, mainly bears the function of frizing.Its frizing effect depends primarily on following two aspects: 1) ring body complies with the ability of cylinder holes distortion, i.e. coating performance; 2) contact of ring periphery and inboard wall of cylinder liner.Therefore, improve coating performance, improve the frizing ability that contact can improve scraper ring.
Known according to contact P=2Ft (elastic force)/(D (cylinder diameter) × h (contact height)), increase Ft or reduce h and can improve contact P.
Scraper ring of the prior art, as shown in Figure 1, it is by comprising external face, two end faces and internal circumferential face; External face comprises spaced two boss of axial direction, is arranged at the groove bottom between two boss, and is arranged at two boss prisms between boss and groove bottom; Wherein, the top of two boss is step-like, namely two boss include the surface of contact directly contacted with the inwall of cylinder sleeve, and be arranged at the step surface of a sidepiece of surface of contact, have between step surface with surface of contact and be connected inclined-plane, further, the step surface of two boss is arranged at the same direction of each boss.
, there is following defect when fabrication design in the scraper ring of this structure:
Due to the step surface arranged in the same way, make to add man-hour requirement chosen in advance machine direction, generally can end face spile and to identify as direction wherein, then process, this just makes course of working complicated, and relates to direction, easily occurs the phenomenon that machine direction is contrary with anticipated orientation, cause useless operation, waste material; Meanwhile, this step surface arranged in the same way, in use, carries out correspondence and uses, cause the puzzlement of using process after also just needing alignment direction.
Model utility content
The purpose of this utility model is to propose a kind of scraper ring, not only can reduce frictional loss, ensures frizing effect, and all defines without the need to the identification of travel direction in processing and using process, production, easy to use, and cost is low.
For reaching this object, the utility model by the following technical solutions:
A kind of scraper ring, comprise ring body, described ring body comprises the annular end face of two of being oppositely arranged up and down, and connect ringwise radially outer working surface and the internal circumferential face of two described end faces, described radially outer working surface is arranged at intervals with at least one group of boss ring structure in the central axial direction of described ring body, often organize described boss ring structure and comprise spaced two boss rings up and down, the end face of each described boss ring all forms ladder surface along the central axial direction of described ring body, and the external diameter of the ladder surface of two described boss rings in boss ring structure described in same group is reduce along the direction away from the other side.
Further, the inner circumferential in described internal circumferential face is provided with the elastic element of annular.
Preferably, described radially outer working surface is provided with boss ring structure described in a group.
Preferred further, two described boss rings are symmetrical arranged up and down.
Preferred further, described boss ring comprises the first prism, the second prism and described ladder surface, and described ladder surface connects described first prism and described second prism, and described first prism is connected with described end face.
Preferred further, the external diameter that described ladder surface comprises the first boss ladder surface, external diameter is greater than described first boss ladder surface and with the second boss ladder surface of the interior side contacts of cylinder sleeve and the ladder transition face being connected described first boss ladder surface and described second boss ladder surface, wherein, described first boss ladder surface is connected with described first prism, and described second boss ladder surface is connected with described second prism.
Preferred further, the angle of described second boss ladder surface place plane and described first boss ladder surface place plane is 0 ° ~ 10 °, wherein, and described second boss ladder surface place plane and described end face place plane orthogonal.
Preferred further, the axial width along described central axial direction of described second boss ladder surface is 0.05 ~ 0.15mm, the axial overall width along described central axial direction of described first boss ladder surface, described ladder transition face and described second boss ladder surface is 0.15 ~ 0.45mm, and described ladder transition face is 0.02 ~ 0.06mm along the radial height of described ring body radial direction.
Further preferred, the outer surface of described first boss ladder surface, described ladder transition face and described second boss ladder surface all arranges wear resistant coating, and the thickness of described wear resistant coating is 0.03 ~ 0.10mm.
Preferably, the second prism of two described boss rings is connected by the groove bottom between two described boss rings of described radially outer working surface, and described groove bottom circumferentially offers the spill port that several radial directions run through described ring body.
Preferred further, described first boss ladder surface is less than the radial distance of described second boss ladder surface to described groove bottom to described groove bottom along the radial distance of described ring body radial direction, wherein, described second boss ladder surface is 0.25 ~ 0.50mm to the radial distance of described groove bottom.
Preferred further, the described internal circumferential face of annular comprises symmetrically arranged two curved-surface structures up and down, each described curved-surface structure comprises the inwall, arc surface and the prism that connect successively from outside to inside, described inwall is connected with described end face, two described curved-surface structures are connected by the circular sliding slopes face between described prism, one end face of described spill port is positioned at described groove bottom, the other end of described spill port is positioned at described circular sliding slopes face, and described elastic element is close to described arc surface and is arranged.
Preferred further, described inwall is the plane perpendicular to described end face, and two described curved-surface structures and described circular sliding slopes face form the structure of nipple form jointly.
The beneficial effects of the utility model are:
Scraper ring of the present utility model, comprise ring body, described ring body comprises the annular end face of two of being oppositely arranged up and down, and connect ringwise radially outer working surface and the internal circumferential face of two described end faces, described radially outer working surface is arranged at intervals with at least one group of boss ring structure in the central axial direction of described ring body, often organize described boss ring structure and comprise spaced two boss rings up and down, the end face of each described boss ring all forms ladder surface along the central axial direction of described ring body, and the external diameter of the ladder surface of two described boss rings in boss ring structure described in same group is reduce along the direction away from the other side, reduced along the direction away from the other side by the external diameter of the ladder surface by two boss rings, thus the height point of two ladder surfaces is in the inner side of two boss rings, and low spot is in the outside of two boss rings, therefore, two boss rings are symmetrical arranged, and ladder surface is also for being symmetrical arranged, and then make this scraper ring not need the identification of travel direction when processing or install and determine, thus significantly reduce processing and installation difficulty, reduce costs, and, owing to there is no directivity requirement, can not make mistakes during use.
Accompanying drawing explanation
Fig. 1 is the structural representation of the scraper ring of prior art.
Fig. 2 is the Facad structure schematic diagram of scraper ring of the present utility model.
Fig. 3 is the cross-sectional view of the scraper ring in Fig. 2 at A-A.
In figure: 1-radially outer working surface; 2-internal circumferential face; 3-inwall; 4-ring body; 5-end face; 6-first prism; 7-first boss ladder surface; 8-ladder transition face; 9-second boss ladder surface; 10-second prism; 11-groove bottom; 12-arc surface; 13-prism; 14-circular sliding slopes face; 15-spill port; 16-elastic element; 17-wear resistant coating; The radius of arc of Rg-ring body inner headed face elastic elements; Ri-ring body inner headed face is near the radius of arc of spill port; The surface of contact of F1-elastic element and arc surface.
Embodiment
The technical solution of the utility model is further illustrated by embodiment below in conjunction with accompanying drawing.
As Fig. 2, shown in Fig. 3, a kind of scraper ring, comprise ring body 4, ring body 4 comprises the annular end face 5 of two of being oppositely arranged up and down, and connect ringwise radially outer working surface 1 and the internal circumferential face 2 of two end faces 5, radially outer working surface 1 is arranged at intervals with at least one group of boss ring structure in the central axial direction of ring body 4, often organize boss ring structure and comprise spaced two boss rings up and down, the end face of each boss ring all forms ladder surface along the central axial direction of ring body 4, and the external diameter of the ladder surface of two boss rings in same group of boss ring structure is reduce along the direction away from the other side.This scraper ring is by reducing the external diameter of the ladder surface of two boss rings along the direction away from the other side, thus the height point of two ladder surfaces is in the inner side of two boss rings, and low spot is in the outside of two boss rings, therefore, two boss rings are symmetrical arranged, and ladder surface is also for being symmetrical arranged, and then make this scraper ring not need the identification of travel direction when processing or install and determine, thus significantly reduce processing and installation difficulty, reduce costs, meanwhile, owing to there is no directivity requirement, can not make mistakes during use.
It should be noted that, because the external diameter of ladder surface is for can be understood as, the point of ladder surface in the central axial direction of ring body 4 is to the perpendicular distance of the central axis of ring body 4.
Further, the inner circumferential in internal circumferential face 2 is provided with the elastic element 16 of annular.Utilize elastic element 16 to be supplied to the elastic force of ring body 4 in radial direction, the radially outer working surface 1 of ring body 4 can effectively be contacted with the inwall of cylinder sleeve preferably.
Preferred further, the internal circumferential face 2 of annular comprises symmetrically arranged two curved-surface structures up and down, each curved-surface structure comprises the inwall 3, arc surface 12 and the prism 13 that connect successively from outside to inside, inwall 3 is connected with end face 5, two curved-surface structures are connected by the circular sliding slopes face 14 between prism 13, and elastic element 16 is close to arc surface 12 and is arranged.Preferred further, inwall 3 is the plane perpendicular to end face 5, and two curved-surface structures and circular sliding slopes face 14 form the structure of nipple form jointly.Wherein, Rg is the radius of arc of ring body inner headed face elastic elements, Ri is the radius of arc of ring body inner headed face near spill port, F1 is the surface of contact of elastic element 16 and arc surface 12, now, the outer circumferential face of elastic element 16 there are in the axial direction two positions contact with the arc surface 12 of each curved-surface structure respectively, also two arc surfaces 12 are namely had to contact with elastic element 16, thus traditional scraper ring is compared, which increase a contact position, thus the rate of wear of the arc surface 12 of elasticity original paper 16 and ring body 4 is all reduced, the elastic force rate of decay reduces, also improve the working life of scraper ring.
Wherein, radially outer working surface 1 is provided with one group of boss ring structure, and two boss rings are symmetrical arranged up and down.Also namely, two boss rings are arranged with the mid point place plane symmetry of the height of ring body 4.After arranging like this, adding man-hour, can process with any one end face 5 benchmark, and before processing or in course of working, all without the need to specially setting the feature of reference, make processing convenient, this structure does not just need to consider installation direction in use yet, makes to install easily; When ring body 4 can be made again to slide up and down in cylinder sleeve, balance is good, and stability is high, namely ensures that two ladder surfaces for frizing all contact with inboard wall of cylinder liner simultaneously.
Particularly, boss ring comprises the first prism 6, second prism 10 and ladder surface, and ladder surface connects the first prism 6 and the second prism 10, first prism 6 is connected with end face 5.Especially, in the present embodiment, the external diameter that ladder surface comprises the first boss ladder surface 7, external diameter is greater than the first boss ladder surface 7 and with the second boss ladder surface 9 of the interior side contacts of cylinder sleeve and the ladder transition face 8 being connected the first boss ladder surface 7 and the second boss ladder surface 9, wherein, first boss ladder surface 7 is connected with the first prism 6, and the second boss ladder surface 9 is connected with the second prism 10.In the present embodiment, the low spot i.e. first boss ladder surface 7 of ladder surface is positioned at the outside of boss ring, and the height of ladder surface point i.e. the second boss ladder surface 9 is positioned at the inner side of boss ring.
Further, second prism 10 of two boss rings is connected by the groove bottom 11 between two boss rings of radially outer working surface 1, and groove bottom 11 circumferentially offers the spill port 15 that several radial directions run through ring body 4, one end face of spill port 15 is positioned at groove bottom 11, and the other end of spill port 15 is positioned at circular sliding slopes face 14.Preferably, spill port 15 can be manhole, also can be waist through hole, to help the smooth and easy discharge of the oil scraped.
In the present embodiment, the axial width of the second boss ladder surface 9 is 0.05 ~ 0.15mm, preferably, the axial width a of the second boss ladder surface 9 can be 0.05mm, 0.08mm, 0.1mm, 0.12mm or 0.15mm, because engine friction horsepower loss is 60 ~ 70% from scraper ring, and the design of this size keeps high surface pressure under low elastic force ensure that simultaneously, and engine oil consumption can reduce by more than 50%, reduce frictional work loss about 15%, ensure that the feasibility of processing technology simultaneously.
In the present embodiment, the axial overall width b of the first boss ladder surface 7, ladder transition face 8 and the second boss ladder surface 9 is 0.15 ~ 0.45mm, preferably, the axial overall width b of the first boss ladder surface 7, ladder transition face 8 and the second boss ladder surface 9 is 0.15mm, 0.25mm, 0.30mm, 0.35mm, 0.40mm, 0.45mm, under this size, the structure that first boss ladder surface 7, ladder transition face 8 and the second boss ladder surface 9 coordinate, makes improve 1 times the working life of scraper ring.
In the present embodiment, the radial minimum range c in ladder transition face 8 is 0.02 ~ 0.06mm, preferably, the radial minimum range c in ladder transition face 8 is 0.02mm, 0.03mm, 0.04mm, 0.05mm, 0.06mm, thus this ladder transition face 8 is inclined-plane, in tapered configuration, ensure that the slow-decay of ring body 4 in scope inner face pressure in working life, extend the working life of scraper ring.
In the present embodiment, the angle e of the second boss ladder surface 9 place plane and the first boss ladder surface 7 place plane is 0 ° ~ 10 °, wherein, second boss ladder surface 9 place plane and end face 5 place plane orthogonal, the gradient utilizing the second boss ladder surface 9 and the first boss ladder surface 7 to be formed, ensure that the oil scraped flows out smoothly.
In the present embodiment, the outer surface of the first boss ladder surface 7, ladder transition face 8 and the second boss ladder surface 9 all arranges wear resistant coating 17, the thickness of wear resistant coating 17 is 0.03 ~ 0.10mm, in the present embodiment, the thickness f of wear resistant coating 17 is 0.03mm, 0.04mm, 0.05mm, 0.06mm, 0.07mm, 0.08mm, 0.09mm, 0.10mm, 0.10mm.After the second boss ladder surface 9 frizing wearing and tearing, the first boss ladder surface 7 still has wear resistant coating 17, plays the frizing effect identical with common oil ring equally.Under identical thickness of coating condition, working life doubles than traditional scraper ring.
Preferably, first boss ladder surface 7 to groove bottom 11 is less than the radial distance of the second boss ladder surface 9 to groove bottom 11 along the radial distance of ring body 4 radial direction, wherein, the radial distance of the second boss ladder surface 9 to groove bottom 11 is 0.25 ~ 0.50mm, ensure that oil circuit is unimpeded, improve the rigidity of ring body simultaneously.
Scraper ring of the present utility model, be different from traditional scraper ring, it is equipped with by said structure and size, make the axial height a of the second boss ladder surface 9 of this scraper ring in reduction, namely h is reduced, even if reducing scraper ring elastic force for reducing frictional work loss, still can improve scraper ring contact, reaching reduction engine oil consumption and obtain target.More particularly, scraper ring of the present utility model does not all need travel direction identification in course of working and in using, and scraper ring of the present utility model is compared with traditional scraper ring, and its usability is obviously improved, frictional work loss reduces about 15%, and consumption of lubricating oil is the highest reduces about more than 50%.
Below know-why of the present utility model is described in conjunction with specific embodiments.These describe just in order to explain principle of the present utility model, and can not be interpreted as the restriction to the utility model protection domain by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present utility model, and these modes all will fall within protection domain of the present utility model.
Claims (10)
1. a scraper ring, comprise ring body (4), described ring body (4) comprises the annular end face (5) of two of being oppositely arranged up and down and connects ringwise radially outer working surface (1) and internal circumferential face (2) of two described end faces (5), it is characterized in that
Described radially outer working surface (1) is arranged at intervals with at least one group of boss ring structure in the central axial direction of described ring body (4), often organize described boss ring structure and comprise spaced two boss rings up and down, the end face of each described boss ring all forms ladder surface along the central axial direction of described ring body (4), and the external diameter of the ladder surface of two described boss rings in boss ring structure described in same group is reduce along the direction away from the other side.
2. scraper ring according to claim 1, is characterized in that, the inner circumferential of described internal circumferential face (2) is provided with the elastic element (16) of annular.
3. scraper ring according to claim 2, is characterized in that, described radially outer working surface (1) is provided with boss ring structure described in a group.
4. scraper ring according to claim 3, is characterized in that, two described boss rings are symmetrical arranged up and down.
5. scraper ring according to claim 4, it is characterized in that, described boss ring comprises the first prism (6), the second prism (10) and described ladder surface, described ladder surface connects described first prism (6) and described second prism (10), and described first prism (6) is connected with described end face (5).
6. scraper ring according to claim 5, it is characterized in that, described ladder surface comprises the first boss ladder surface (7), external diameter is greater than the second boss ladder surface (9) of the external diameter of described first boss ladder surface (7) the interior side contacts with cylinder sleeve, and connect the ladder transition face (8) of described first boss ladder surface (7) and described second boss ladder surface (9), wherein, described first boss ladder surface (7) is connected with described first prism (6), described second boss ladder surface (9) is connected with described second prism (10).
7. scraper ring according to claim 6, it is characterized in that, the angle of described second boss ladder surface (9) place plane and described first boss ladder surface (7) place plane is 0 ° ~ 10 °, wherein, described second boss ladder surface (9) place plane and described end face (5) place plane orthogonal;
The axial width along described central axial direction of described second boss ladder surface (9) is 0.05 ~ 0.15mm, the axial overall width along described central axial direction of described first boss ladder surface (7), described ladder transition face (8) and described second boss ladder surface (9) is 0.15 ~ 0.45mm, and described ladder transition face (8) is 0.02 ~ 0.06mm along the radial height that described ring body (4) is radial;
The outer surface of described first boss ladder surface (7), described ladder transition face (8) and described second boss ladder surface (9) all arranges wear resistant coating (17), and the thickness of described wear resistant coating (17) is 0.03 ~ 0.10mm.
8. the scraper ring according to claim 6 or 7, is characterized in that,
Second prism (10) of two described boss rings is connected by the groove bottom (11) between two described boss rings of described radially outer working surface (1), and described groove bottom (11) circumferentially offers the spill port (15) that several radial directions run through described ring body (4);
Described first boss ladder surface (7) is less than the radial distance of described second boss ladder surface (9) to described groove bottom (11) to described groove bottom (11) along the radial distance that described ring body (4) is radial, wherein, described second boss ladder surface (9) is 0.25 ~ 0.50mm to the radial distance of described groove bottom (11).
9. scraper ring according to claim 8, it is characterized in that, the described internal circumferential face (2) of annular comprises symmetrically arranged two curved-surface structures up and down, each described curved-surface structure comprises the inwall (3) connected successively from outside to inside, arc surface (12) and prism (13), described inwall (3) is connected with described end face (5), two described curved-surface structures are connected by the circular sliding slopes face (14) between described prism (13), one end face of described spill port (15) is positioned at described groove bottom (11), the other end of described spill port (15) is positioned at described circular sliding slopes face (14), described elastic element (16) is close to described arc surface (12) and is arranged.
10. scraper ring according to claim 9, it is characterized in that, described inwall (3) is the plane perpendicular to described end face (5), and two described curved-surface structures and described circular sliding slopes face (14) form the structure of nipple form jointly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520670659.8U CN205025626U (en) | 2015-08-31 | 2015-08-31 | Oil scraper ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520670659.8U CN205025626U (en) | 2015-08-31 | 2015-08-31 | Oil scraper ring |
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| Publication Number | Publication Date |
|---|---|
| CN205025626U true CN205025626U (en) | 2016-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520670659.8U Active CN205025626U (en) | 2015-08-31 | 2015-08-31 | Oil scraper ring |
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| CN (1) | CN205025626U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194485A (en) * | 2016-08-02 | 2016-12-07 | 东风朝阳朝柴动力有限公司 | There is the piston ring well scraping functional oil |
| WO2020133710A1 (en) * | 2018-12-26 | 2020-07-02 | 仪征亚新科双环活塞环有限公司 | Combined oil ring and piston engine |
| CN112943925A (en) * | 2021-01-27 | 2021-06-11 | 马勒汽车技术（中国）有限公司 | Piston ring |
| CN112983785A (en) * | 2021-03-15 | 2021-06-18 | 四川简阳耐达机械设备有限公司 | Oil scraper ring for vertical compressor |
-
2015
- 2015-08-31 CN CN201520670659.8U patent/CN205025626U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194485A (en) * | 2016-08-02 | 2016-12-07 | 东风朝阳朝柴动力有限公司 | There is the piston ring well scraping functional oil |
| WO2020133710A1 (en) * | 2018-12-26 | 2020-07-02 | 仪征亚新科双环活塞环有限公司 | Combined oil ring and piston engine |
| CN112943925A (en) * | 2021-01-27 | 2021-06-11 | 马勒汽车技术（中国）有限公司 | Piston ring |
| CN112983785A (en) * | 2021-03-15 | 2021-06-18 | 四川简阳耐达机械设备有限公司 | Oil scraper ring for vertical compressor |
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