CN113153566B - Asymmetric scraper ring, three-combination piston oil ring and preparation method of scraper ring - Google Patents
Asymmetric scraper ring, three-combination piston oil ring and preparation method of scraper ring Download PDFInfo
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- CN113153566B CN113153566B CN202110259828.9A CN202110259828A CN113153566B CN 113153566 B CN113153566 B CN 113153566B CN 202110259828 A CN202110259828 A CN 202110259828A CN 113153566 B CN113153566 B CN 113153566B
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- ring
- fixedly connected
- arc
- circular arc
- scraper ring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/12—Details
- F16J9/20—Rings with special cross-section; Oil-scraping rings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/12—Devices for exhausting mist of oil or coolant; Devices for collecting or recovering materials resulting from grinding or polishing, e.g. of precious metals, precious stones, diamonds or the like
Abstract
The invention discloses an asymmetric scraper ring, a three-combination piston oil ring and a preparation method of the scraper ring, wherein the scraper ring comprises a lining ring body, two groups of scraper ring matrixes, a piston and a cylinder sleeve, the outer circular surface of the scraper ring matrix adopts an asymmetric barrel surface structure, the oil distribution area on the outer circle is increased, the oil storage capacity is increased, the thickness and the uniformity of an oil film on the cylinder wall are increased, the lubricating condition is improved, the friction wear between the ring and the cylinder wall is reduced, the friction surface between the ring and the cylinder sleeve is protected, and the friction noise is reduced. When the scraper moves downwards, the oil distribution area is small, so that the thickness of the oil film on the surface of the cylinder sleeve is reduced, the residual lubricating oil is reduced, and the oil consumption of the engine is further reduced. According to the invention, the contact surface between the circular arc of the inner circular surface of the scraper ring and the lining ring is increased, so that the contact surface pressure is reduced, and the abrasion of the lining ring is effectively improved; by reducing the circular arc of the outer circular surface of the scraper ring, the contact surface between the ring and the cylinder wall is reduced, the contact surface pressure is increased, the oil scraping effect of the scraper ring is improved, and the scraper ring has a positive effect on improving the oil consumption of an engine.
Description
Technical Field
The invention relates to the technical field of piston rings, in particular to an asymmetric scraper ring, a three-combination piston oil ring and a preparation method of the scraper ring.
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 high-speed machines such as gasoline engines, gas machines and the like.
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. The oil ring moves up and down along with the reciprocation of the piston, the inner circular surface of the scraper ring is fully contacted with the ear supporting part of the backing ring all the time to form a friction pair, and the outer circular surface of the scraper forms a friction pair with the cylinder wall. The prior scraper ring is an approximately elliptical structure consisting of a rectangle and two semicircles. With the rising of the explosion pressure of the automobile and the rising of the friction requirement, the wiper blade ring has the following defects: 1) the outer circular surface of the prior common doctor blade ring is of a symmetrical semicircular structure, the upward oil distribution surface and the downward oil distribution surface of the doctor blade ring are symmetrical, and the thickness of the lubricating oil film formed on the cylinder wall is poor in uniformity due to the fact that the doctor blade ring is very thin (generally 0.3-0.6 mm), the oil distribution surface is very small, the oil film is thinner and even has no oil film phenomenon as the oil film is closer to the top dead center of the oil ring, the lubricating effect is influenced, the abrasion of the doctor blade ring and the cylinder sleeve is easy to cause, and the risk of cylinder pulling is high; 2) because doctor-bar intra-annular face and backing ring ear are in the friction always, have caused the excessive wearing and tearing of backing ring ear, the wearing and tearing back of backing ring ear, the combination tension of ring can appear reducing, influences the frizing effect to need polish when production and reduce the roughness, and the sweeps that produces when polishing often can be kicked up, thereby influences staff's operation and healthy.
Disclosure of Invention
In order to overcome the technical problems, the invention aims to provide an asymmetric scraper ring, a three-combination piston oil ring and a preparation method of the scraper ring.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides an asymmetric doctor blade ring, three combination piston oil rings, includes backing ring body, two sets of doctor blade ring base member, piston and cylinder liner, and is two sets of doctor blade ring base member is parallel to each other, the excircle side of doctor blade ring base member has four sections circular arcs to constitute, the excircle summit of doctor blade ring base member is provided with first circular arc to the side of going up, the excircle summit of doctor blade ring base member is provided with the second circular arc to the downside, first circular arc meets with the second circular arc at the summit department and cuts, the side of going up of doctor blade ring base member and the one side that is located first circular arc are provided with the third circular arc, the downside of doctor blade ring base member and the one side that is located the second circular arc are provided with the fourth circular arc, the annular inboard extension of doctor blade ring base member has interior disc circular arc, the upper surface and the lower surface that the third circular arc just is located doctor blade ring base member are provided with fifth circular arc and sixth circular arc respectively.
As a further scheme of the invention: the circular arc radius of first circular arc is R1, the circular arc radius of second circular arc is R2, the circular arc radius of third circular arc is R3, the circular arc radius of fourth circular arc is R4, the tangent summit of first circular arc and second circular arc is h1 to the distance of downside, the height drop of the point of downside distance h2 of first circular arc and doctor blade ring base member to the tangent point between first circular arc and the second circular arc is t1, the height drop of the point of downside distance h3 of second circular arc and doctor blade ring base member to the tangent point between first circular arc and the second circular arc is t2, the radius of inner disc circular arc is R5, the circular arc radius of fifth circular arc is R6, the circular arc radius of sixth circular arc is R7.
As a further scheme of the invention: r1 is 1.4H-2.3H, R2 is 0-0.5H, R3 is 0.05-0.1 mm, R4 is 0.05-0.3 mm, H1 is 0.2H-0.35H, H2 is 0.65H-0.85H, H3 is 0.15H-0.3H, t1 is 10-35 μm, t2 is 0-8 μm, R5 is 0.3-0.4 mm, R6 is 0.05-0.15 mm, and R7 is 0.05-0.15 mm, wherein H is the height of the wiper ring, and the range of H is 0.3-0.6 mm.
As a further scheme of the invention: the sum of the widths of the scraping ring matrix and the arcs of the inner circular surface and the outer circular surface is T, and the range of T is 1.4 mm-3.8 mm.
The invention also discloses a preparation method of the asymmetric scraper ring and the scraper ring of the three-combination piston oil ring, which comprises the following steps: the method comprises the following steps:
designing a raw material-forming wire of the asymmetric barrel surface scraping blade according to the size of the scraping blade ring;
step two, continuously annealing and drawing round steel wires with the diameter phi of 3.2mm for 3-5 times to reach the diameter of 2.0 mm;
rolling and rough machining are carried out for 4-5 times by using rollers to obtain the basic shape and size of the wire;
correcting the shape and size of the cylindrical asymmetric barrel shape of the wire rod through die drawing to achieve the final size of the wire rod;
and fifthly, quenching, tempering and quenching to form a tempered martensite structure with uniform structure.
Winding the wire rod into a circle according to the diameter requirement of the scraping ring to form a barrel;
seventhly, cleaning the surface of the scraping blade ring by using hydrocarbon;
step eight, carrying out corresponding surface treatment according to design, wherein the surface treatment is one or combination treatment of a nitride layer, a chromium coating, a ceramic composite coating and a diamond-like coating;
step nine, grinding the outer circular surface by a grinder to realize the roughness Ra0.3 mu m and Rz1.5 mu m below;
tenthly, phosphorizing or oxidizing the surface to form an antirust and anticorrosive protective film;
eleven, deburring the cut part and the opening part through polishing equipment;
and step twelve, utilizing a laser inspection instrument to identify the direction and marking a corresponding mark to form a final finished product.
As a further scheme of the invention: the polishing equipment comprises a support frame, a support box is fixedly connected to the top of the support frame, a servo motor is fixedly connected to the bottom of an inner cavity of the support box, an output end of the servo motor is fixedly connected with a rotating shaft through a coupler, hollow sleeves are fixedly connected to two sides of the top of the support box, a gear box is fixedly connected between two opposite sides of the hollow sleeves, the top end of the rotating shaft sequentially penetrates through the support box and the gear box and extends into the gear box, connecting shafts are rotatably connected to two sides of the inner wall of each hollow sleeve, a first bevel gear is fixedly connected to the outer surface of each rotating shaft, a second bevel gear is fixedly connected to the outer surface of each connecting shaft, the outer surface of each second bevel gear is meshed with the outer surface of the corresponding first bevel gear, and a fine grinding wheel is fixedly connected to the outer surface of the corresponding connecting shaft on the right side, be located the left side the outer fixed surface of connecting axle is connected with rough grinding wheel, and the one end of hollow cover is fixed even has the wrapping cover, the equal fixedly connected with bracing piece in the positive both sides of supporting box, the one end fixedly connected with supporting shoe of bracing piece, one side fixedly connected with horizontal pole of supporting shoe, the outer fixed surface of horizontal pole is connected with and supports the cover, support the internal surface fixedly connected with montant of cover, the top of montant is provided with the receipts back plate through coupling assembling, one side fixed connection baffle of wrapping cover.
As a further scheme of the invention: coupling assembling includes the adapter sleeve, the trepanning has been seted up with the bottom to the surface of adapter sleeve, the joint groove has been seted up on the top of montant, the internal surface fixedly connected with snap ring of draw-in groove, the internal surface fixedly connected with a plurality of draw-in groove of snap ring, the internal surface fixedly connected with fixed plate of trepanning, the top fixedly connected with of fixed plate presses the piece, run through the adapter sleeve and extend to the outside of adapter sleeve according to the top of piece, the bottom fixedly connected with gag lever post of fixed plate, the external surface fixedly connected with a plurality of kelly of gag lever post, the surface of kelly contacts with the internal surface of draw-in groove, the surface cover of gag lever post is equipped with the spring, the top of spring and the bottom fixed connection of fixed plate.
As a further scheme of the invention: the use method of the polishing equipment comprises the following steps: the servo motor is electrically connected with an external power supply, so that the servo motor drives the rotating shaft to rotate, the first bevel gear is driven to rotate, the second bevel gear can drive the connecting shaft to rotate inside the hollow sleeve through the cooperation between the first bevel gear and the second bevel gear, and the fine grinding wheel and the coarse grinding wheel rotate in the wrapping sleeve;
at the moment, the scraping ring is positioned below the baffle and is in contact with the outer surface of the rough grinding wheel or the fine grinding wheel so as to grind the rough grinding wheel or the fine grinding wheel, and the scraps generated during grinding are blocked under the action of the baffle and fall into the recovery plate;
after polishing the completion, stop servo motor through external power source, and press the piece, make the connection cover move down at the surface of montant, and then make the spring compressed, the gag lever post slides to the inside in joint groove simultaneously, and the kelly slides from the inside roll-off of draw-in groove under the effect on inclined plane, kelly and draw-in groove crisscross setting this moment, thereby can be with the adapter sleeve together with withdraw the board and together take off, the waste material that will grind falls.
The invention has the beneficial effects that:
(1) the outer circular surface of the scraping blade ring base adopts an asymmetric barrel surface structure, so that the oil distribution area on the upper side of the outer circle is increased, the oil storage capacity is increased, the thickness and the uniformity of an oil film on the cylinder wall are increased, the lubricating condition is improved, the frictional wear of the ring and the cylinder wall is reduced, the friction surface of the ring and the cylinder sleeve is protected, and the frictional noise is reduced. When the scraping piece moves downwards, the oil distribution area is small, so that the thickness of the oil film on the surface of the cylinder sleeve is reduced, the residual lubricating oil is reduced, and the oil consumption of the engine is further reduced. According to the invention, the contact surface between the circular arc of the inner circular surface of the scraper ring and the lining ring is increased, so that the contact surface pressure is reduced, and the abrasion of the lining ring is effectively improved; by reducing the circular arc of the outer circular surface of the scraper ring, the contact surface between the ring and the cylinder wall is reduced, the contact surface pressure is increased, the oil scraping effect of the scraper ring is improved, and the scraper ring has a positive effect on improving the oil consumption of an engine.
(2) In the invention, a servo motor is fixedly connected at the bottom of an inner cavity of a supporting box, a rotating shaft is fixedly connected at the output end of the servo motor through a coupler, hollow sleeves are fixedly connected at two sides of the top of the supporting box, a gear box is fixedly connected between the opposite sides of the two hollow sleeves, the top end of the rotating shaft sequentially penetrates through the supporting box and the gear box and extends into the gear box, connecting shafts are rotatably connected at two sides of the inner wall of each hollow sleeve, a first bevel gear is fixedly connected to the outer surface of the rotating shaft, a second bevel gear is fixedly connected to the outer surface of the connecting shaft, the outer surface of the second bevel gear is meshed with the outer surface of the first bevel gear, a fine grinding wheel is fixedly connected to the outer surface of a connecting shaft at the right side, a rough grinding wheel is fixedly connected to the outer surface of a connecting shaft at the left side, a wrapping sleeve is fixedly connected to one end of each hollow sleeve, and supporting rods are fixedly connected to two sides of the front of the supporting box, the one end fixedly connected with supporting shoe of bracing piece, one side fixedly connected with horizontal pole of supporting shoe, the outer fixed surface of horizontal pole is connected with and supports the cover, support the internal surface fixedly connected with montant of cover, the top of montant is provided with the board of retrieving through coupling assembling, one side fixed connection baffle of parcel cover, through setting up servo motor, cooperation between first bevel gear of cooperation and the second bevel gear can drive two epaxial rough grinding wheel of connecting and the rotation of thin grinding wheel, thereby can make the emery wheel of thickness difference rotate, can use for the user, set up simultaneously baffle and parcel cover and can prevent that the sweeps that produce from producing when the grinding from producing the influence to staff's operation, and can collect a large amount of sweeps through retrieving the board, staff's labour has been reduced.
(3) In the invention, the connecting component comprises a connecting sleeve, sleeve grooves are formed in the outer surface and the bottom end of the connecting sleeve, a clamping groove is formed in the top end of a vertical rod, a clamping ring is fixedly connected to the inner surface of the clamping groove, a plurality of clamping grooves are fixedly connected to the inner surface of the clamping ring, a fixing plate is fixedly connected to the inner surface of the sleeve groove, a pressing block is fixedly connected to the top of the fixing plate, the top of the pressing block penetrates through the connecting sleeve and extends to the outside of the connecting sleeve, a limiting rod is fixedly connected to the bottom of the fixing plate, a plurality of clamping rods are fixedly connected to the outer surface of the limiting rod, the outer surface of each clamping rod is in contact with the inner surface of each clamping groove, a spring is sleeved on the outer surface of each limiting rod, the top end of the spring is fixedly connected with the bottom of the fixing plate, the sleeve grooves are arranged in the connecting sleeve and matched with the clamping rods on the limiting rods and the clamping grooves in the clamping rings, and then the springs are utilized, and the clamping rods are clamped by the clamping grooves after the pressing block, the pressing block is pressed again, the clamping rod can be located between the two clamping grooves through the inclined plane on the clamping grooves and the inclined plane of the clamping rod, so that the recovery plate and the connecting sleeve can be taken down together, the recovery plate is taken down conveniently, waste materials are prevented from scattering, and the practicability of the waste materials is further improved.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic illustration of the dimensions of the blade ring base of the present invention;
FIG. 2 is a structural assembly view of the three-combination oil ring of the present invention;
FIG. 3 is a partial cross-sectional view of a conventional doctor blade ring;
FIG. 4 is a partial sectional view of the construction of the grinding apparatus of the present invention;
FIG. 5 is a side view showing an external structure of the grinding apparatus of the present invention;
FIG. 6 is a schematic view of the internal structure of the connecting sleeve of the present invention;
fig. 7 is an enlarged view of a portion of the structure of fig. 6 a according to the present invention.
In the figure: 1. a liner ring body; 2. a blade ring base; 3. a piston; 4. a cylinder liner; 5. a first arc; 6. a second arc; 7. a third arc; 8. a fourth arc; 9. the inner circular surface is circular arc; 10. a fifth arc; 11. a sixth arc; 12. a support frame; 13. a support box; 14. a servo motor; 15. a rotating shaft; 16. a hollow sleeve; 17. a gear case; 18. a connecting shaft; 19. a first bevel gear; 20. a second bevel gear; 21. a fine grinding wheel; 22. a rough grinding wheel; 23. wrapping the sleeve; 24. a support bar; 25. a support block; 26. a cross bar; 27. a baffle plate; 28. a support sleeve; 29. a vertical rod; 30. a connecting assembly; 300. a clamping groove; 301. connecting sleeves; 302. sleeving a groove; 303. a card slot; 304. a snap ring; 305. a fixing plate; 306. according to blocks; 307. a limiting rod; 308. a clamping rod; 309. a spring; 31. and (5) recovering the plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides the following three embodiments:
example 1
An asymmetric scraper ring and a three-combination piston oil ring comprise a backing ring body 1, two groups of scraper ring matrixes 2, a piston 3 and a cylinder sleeve 4, wherein the two groups of scraper ring matrixes 2 are parallel to each other, the outer circle side of the scraper ring base body 2 is composed of four sections of circular arcs, a first circular arc 5 is arranged from the top point of the outer circle surface of the scraper ring base body 2 to the upper side surface, a second circular arc 6 is arranged from the top point of the excircle of the scraper ring base body 2 to the lower side surface, the first circular arc 5 and the second circular arc 6 are connected and cut at the top point, a third arc 7 is arranged on the upper side surface of the scraper ring base body 2 and on one side of the first arc 5, a fourth circular arc 8 is arranged on the lower side surface of the scraper ring base body 2 and positioned on one side of the second circular arc 6, an inner circular arc 9 extends from the annular inner side of the blade ring base body 2, and a fifth circular arc 10 and a sixth circular arc 11 are respectively arranged on the third circular arc 7 and the upper surface and the lower surface of the blade ring base body 2.
In the present invention, the arc radius of the first arc 5 is R1, the arc radius of the second arc 6 is R2, the arc radius of the third arc 7 is R3, the arc radius of the fourth arc 8 is R4, the distance from the vertex of the first arc 5 tangent to the second arc 6 to the lower surface is h1, the height difference from the point of the distance h2 between the surface of the first arc 5 and the lower surface of the blade ring base 2 to the tangent point between the first arc 5 and the second arc 6 is t1, the height difference from the point of the distance h3 between the surface of the second arc 6 and the lower surface of the blade ring base 2 to the tangent point between the first arc 5 and the second arc 6 is t2, the radius of the arc 9 of the inner circular surface is R5, the arc radius of the fifth arc 10 is R6, and the arc radius of the sixth arc 11 is R7.
In the present invention, H is 0.3mm, R1 is 0.65mm, R2 is 0.09mm, R3 is 0.01, R4 is 0.05, R5 is 0.35mm, R6 is 0.01mm, R7 is 0.01, t1 is 10um, t2 is 2um, H1 is 0.1mm, H2 is 0.195mm, and H3 is 0.07 mm.
In the invention, the sum of the width of the scraping ring base body 2, the inner circular arc 9 and the surface circular arc is T, and T is 1.4 mm.
The invention also discloses a preparation method of the asymmetric scraper ring and the scraper ring of the three-combination piston oil ring, which comprises the following steps: the method comprises the following steps:
designing a raw material-forming wire of the asymmetric barrel surface scraping blade according to the size of the scraping blade ring;
step two, continuously annealing and drawing round steel wires with the diameter phi of 3.2mm for 3-5 times to reach the diameter of 2.0 mm;
rolling and rough machining are carried out for 4-5 times by using rollers to obtain the basic shape and size of the wire;
correcting the shape and size of the cylindrical asymmetric barrel shape of the wire rod through die drawing to achieve the final size of the wire rod;
and fifthly, quenching, tempering and quenching to form a tempered martensite structure with uniform structure.
Winding the wire rod into a circle according to the diameter requirement of the scraping ring to form a barrel;
seventhly, cleaning the surface of the scraping blade ring by using hydrocarbon;
step eight, carrying out corresponding surface treatment according to design, wherein the surface treatment is one or combination treatment of a nitride layer, a chromium coating, a ceramic composite coating and a diamond-like coating;
step nine, grinding the outer circular surface by a grinder to realize the roughness Ra0.3 mu m and Rz1.5 mu m below;
tenthly, phosphorizing or oxidizing the surface to form an antirust and anticorrosive protective film;
step eleven, deburring the cut part and the opening part through polishing equipment;
and step twelve, utilizing a laser inspection instrument to identify the direction and marking a corresponding mark to form a final finished product.
In the invention, the polishing equipment comprises a support frame 12, a support box 13 is fixedly connected to the top of the support frame 12, a servo motor 14 is fixedly connected to the bottom of the inner cavity of the support box 13, the output end of the servo motor 14 is fixedly connected with a rotating shaft 15 through a coupler, hollow sleeves 16 are fixedly connected to both sides of the top of the support box 13, a gear box 17 is fixedly connected between the opposite sides of the two hollow sleeves 16, the top end of the rotating shaft 15 sequentially penetrates through the support box 13 and the gear box 17 and extends into the gear box 17, connecting shafts 18 are rotatably connected to both sides of the inner wall of each hollow sleeve 16, a first bevel gear 19 is fixedly connected to the outer surface of the rotating shaft 15, a second bevel gear 20 is fixedly connected to the outer surface of each connecting shaft 18, and the outer surface of the second bevel gear 20 is meshed with the outer surface of the first bevel gear 19, be located the right side 18 outer fixed surface of connecting axle is connected with the fine grinding wheel 21, is located the left side the outer fixed surface of connecting axle 18 is connected with rough grinding wheel 22, and the one end fixed connection of hollow cover 16 has wrapping cover 23, the positive equal fixedly connected with bracing piece 24 in both sides of supporting box 13, the one end fixedly connected with supporting shoe 25 of bracing piece 24, one side fixedly connected with horizontal pole 26 of supporting shoe 25, the outer fixed surface of horizontal pole 26 is connected with supports cover 28, the internal surface fixed connection of supporting cover 28 has montant 29, the top of montant 29 is provided with receipts back board 31 through coupling assembling 30, wrap up one side fixed connection baffle 27 of cover 23.
In the invention, the connecting assembly 30 comprises a connecting sleeve 301, a sleeve groove 302 is arranged on the outer surface and the bottom end of the connecting sleeve 301, the top end of the vertical rod 29 is provided with a clamping groove 300, the inner surface of the clamping groove 303 is fixedly connected with a clamping ring 304, a plurality of clamping grooves 303 are fixedly connected to the inner surface of the snap ring 304, a fixing plate 305 is fixedly connected to the inner surface of the sleeve groove 302, a pressing block 306 is fixedly connected to the top of the fixing plate 305, the top of the pressing block 306 penetrates through the connecting sleeve 301 and extends to the outside of the connecting sleeve 301, the bottom of the fixing plate 305 is fixedly connected with a limiting rod 307, the outer surface of the limiting rod 307 is fixedly connected with a plurality of clamping rods 308, the outer surface of the clamping rod 308 is in contact with the inner surface of the clamping groove 303, the outer surface of the limiting rod 307 is sleeved with a spring 309, and the top end of the spring 309 is fixedly connected with the bottom of the fixing plate 305.
In the invention, the use method of the polishing equipment comprises the following steps: the servo motor 14 is electrically connected with an external power supply, so that the servo motor 14 drives the rotating shaft 15 to rotate, so as to drive the first bevel gear 19 to rotate, and the second bevel gear 20 can drive the connecting shaft 18 to rotate inside the hollow sleeve 16 through the matching between the first bevel gear 19 and the second bevel gear 20, so that the fine grinding wheel 21 and the rough grinding wheel 22 rotate in the wrapping sleeve 23;
at this time, the doctor blade ring is positioned below the baffle plate 27 and is contacted with the outer surface of the rough grinding wheel 22 or the fine grinding wheel 21 so as to grind the doctor blade ring, and the scraps generated during grinding are blocked by the baffle plate 27 and fall into the recovery plate 31;
after polishing, stop servo motor 14 through external power source, and press down and press block 306, make adapter sleeve 301 at the surface downstream of montant 29, and then make spring 309 compressed, gag lever post 307 slides to the inside of joint groove 300 simultaneously, and the inside roll-off of card pole 308 from draw-in groove 303 under the effect on inclined plane, card pole 308 and draw-in groove 303 staggered arrangement this moment, thereby can take off adapter sleeve 301 together with receipts back plate 31, pour the waste material of grinding.
Example 2
An asymmetric scraper ring and a three-combination piston oil ring comprise a backing ring body 1, two groups of scraper ring matrixes 2, a piston 3 and a cylinder sleeve 4, wherein the two groups of scraper ring matrixes 2 are parallel to each other, the outer circle side of the scraper ring base body 2 is composed of four sections of circular arcs, a first circular arc 5 is arranged from the top point of the outer circle surface of the scraper ring base body 2 to the upper side surface, a second circular arc 6 is arranged from the top point of the excircle of the scraper ring base body 2 to the lower side surface, the first circular arc 5 and the second circular arc 6 are connected and cut at the top point, a third circular arc 7 is arranged on the upper side surface of the scraping sheet ring base body 2 and on one side of the first circular arc 5, a fourth circular arc 8 is arranged on the lower side surface of the scraper ring base body 2 and positioned on one side of the second circular arc 6, an inner circular arc 9 extends from the annular inner side of the blade ring base body 2, and a fifth circular arc 10 and a sixth circular arc 11 are respectively arranged on the third circular arc 7 and the upper surface and the lower surface of the blade ring base body 2.
In the present invention, the arc radius of the first arc 5 is R1, the arc radius of the second arc 6 is R2, the arc radius of the third arc 7 is R3, the arc radius of the fourth arc 8 is R4, the distance from the vertex of the first arc 5 tangent to the second arc 6 to the lower surface is h1, the height difference from the point of the distance h2 between the surface of the first arc 5 and the lower surface of the blade ring base 2 to the tangent point between the first arc 5 and the second arc 6 is t1, the height difference from the point of the distance h3 between the surface of the second arc 6 and the lower surface of the blade ring base 2 to the tangent point between the first arc 5 and the second arc 6 is t2, the radius of the arc 9 of the inner circular surface is R5, the arc radius of the fifth arc 10 is R6, and the arc radius of the sixth arc 11 is R7.
In the present invention, H is 0.4mm, R1 is 0.82mm, R2 is 0.12mm, R3 is 0.1mm, R4 is 0.12mm, R5 is 0.35mm, R6 is 0.01mm, R7 is 0.01mm, t1 is 22um, t2 is 3um, H1 is 0.12mm, H2 is 0.3mm, and H3 is 0.09 mm.
In the invention, the sum of the width of the scraping ring base body 2, the inner circular arc 9 and the surface circular arc is T, and T is 1.8 mm.
The invention also discloses a preparation method of the asymmetric scraper ring and the scraper ring of the three-combination piston oil ring, which comprises the following steps: the method comprises the following steps:
designing a raw material-forming wire of the asymmetric barrel surface scraping blade according to the size of the scraping blade ring;
step two, continuously annealing and drawing round steel wires with the diameter phi of 3.2mm for 3-5 times to reach the diameter of 2.0 mm;
rolling and rough machining are carried out for 4-5 times by using rollers to obtain the basic shape and size of the wire;
correcting the shape and size of the cylindrical asymmetric barrel shape of the wire rod through die drawing to achieve the final size of the wire rod;
and fifthly, quenching, tempering and quenching to form a tempered martensite structure with uniform structure.
Winding the wire rod into a circle according to the diameter requirement of the scraping ring to form a barrel;
seventhly, cleaning the surface of the scraping blade ring by using hydrocarbon;
step eight, carrying out corresponding surface treatment according to design, wherein the surface treatment is one or combination treatment of a nitride layer, a chromium coating, a ceramic composite coating and a diamond-like coating;
step nine, grinding the outer circular surface by a grinder to realize the roughness Ra0.3 mu m and Rz1.5 mu m below;
tenthly, phosphorizing or oxidizing the surface to form an antirust and anticorrosive protective film;
step eleven, deburring the cut part and the opening part through polishing equipment;
and step twelve, utilizing a laser inspection instrument to identify the direction, and marking a corresponding mark to form a final finished product.
In the invention, the polishing equipment comprises a support frame 12, a support box 13 is fixedly connected to the top of the support frame 12, a servo motor 14 is fixedly connected to the bottom of the inner cavity of the support box 13, the output end of the servo motor 14 is fixedly connected with a rotating shaft 15 through a coupler, hollow sleeves 16 are fixedly connected to both sides of the top of the support box 13, a gear box 17 is fixedly connected between the opposite sides of the two hollow sleeves 16, the top end of the rotating shaft 15 sequentially penetrates through the support box 13 and the gear box 17 and extends into the gear box 17, connecting shafts 18 are rotatably connected to both sides of the inner wall of each hollow sleeve 16, a first bevel gear 19 is fixedly connected to the outer surface of the rotating shaft 15, a second bevel gear 20 is fixedly connected to the outer surface of each connecting shaft 18, and the outer surface of the second bevel gear 20 is meshed with the outer surface of the first bevel gear 19, be located the right side 18 outer fixed surface of connecting axle is connected with the fine grinding wheel 21, is located the left side the outer fixed surface of connecting axle 18 is connected with rough grinding wheel 22, and the fixed even wrapping cover 23 that has of one end of hollow cover 16, the positive equal fixedly connected with bracing piece 24 in both sides of supporting box 13, the one end fixedly connected with supporting shoe 25 of bracing piece 24, one side fixedly connected with horizontal pole 26 of supporting shoe 25, the outer fixed surface of horizontal pole 26 is connected with supports cover 28, the internal fixed surface of supporting cover 28 is connected with montant 29, the top of montant 29 is provided with the receipts back board 31 through coupling assembling 30, wrap up one side fixed connection baffle 27 of cover 23.
In the invention, the connecting assembly 30 comprises a connecting sleeve 301, a sleeve groove 302 is arranged on the outer surface and the bottom end of the connecting sleeve 301, the top end of the vertical rod 29 is provided with a clamping groove 300, the inner surface of the clamping groove 303 is fixedly connected with a clamping ring 304, a plurality of clamping grooves 303 are fixedly connected to the inner surface of the snap ring 304, a fixing plate 305 is fixedly connected to the inner surface of the sleeve groove 302, a pressing block 306 is fixedly connected to the top of the fixing plate 305, the top of the pressing block 306 penetrates through the connecting sleeve 301 and extends to the outside of the connecting sleeve 301, the bottom of the fixing plate 305 is fixedly connected with a limiting rod 307, the outer surface of the limiting rod 307 is fixedly connected with a plurality of clamping rods 308, the outer surface of the clamping rod 308 is in contact with the inner surface of the clamping groove 303, the outer surface of the limiting rod 307 is sleeved with a spring 309, and the top end of the spring 309 is fixedly connected with the bottom of the fixing plate 305.
In the invention, the use method of the polishing equipment comprises the following steps: the servo motor 14 is electrically connected with an external power supply, so that the servo motor 14 drives the rotating shaft 15 to rotate, the first bevel gear 19 is driven to rotate, the second bevel gear 20 can drive the connecting shaft 18 to rotate inside the hollow sleeve 16 through the matching between the first bevel gear 19 and the second bevel gear 20, and the fine grinding wheel 21 and the rough grinding wheel 22 rotate in the wrapping sleeve 23;
at this time, the doctor blade ring is positioned below the baffle plate 27 and is contacted with the outer surface of the rough grinding wheel 22 or the fine grinding wheel 21 so as to grind the doctor blade ring, and the scraps generated during grinding are blocked by the baffle plate 27 and fall into the recovery plate 31;
after polishing, stop servo motor 14 through external power source, and press down and press block 306, make adapter sleeve 301 at the surface downstream of montant 29, and then make spring 309 compressed, gag lever post 307 slides to the inside of joint groove 300 simultaneously, and the inside roll-off of card pole 308 from draw-in groove 303 under the effect on inclined plane, card pole 308 and draw-in groove 303 staggered arrangement this moment, thereby can take off adapter sleeve 301 together with receipts back plate 31, pour the waste material of grinding.
Example 3
An asymmetric scraper ring and a three-combination piston oil ring comprise a backing ring body 1, two groups of scraper ring matrixes 2, a piston 3 and a cylinder sleeve 4, wherein the two groups of scraper ring matrixes 2 are parallel to each other, the outer circle side of the scraper ring base body 2 is composed of four sections of circular arcs, a first circular arc 5 is arranged from the top point of the outer circle surface of the scraper ring base body 2 to the upper side surface, a second circular arc 6 is arranged from the top point of the excircle of the scraper ring base body 2 to the lower side surface, the first circular arc 5 and the second circular arc 6 are connected and cut at the top point, a third arc 7 is arranged on the upper side surface of the scraper ring base body 2 and on one side of the first arc 5, a fourth circular arc 8 is arranged on the lower side surface of the scraper ring base body 2 and positioned on one side of the second circular arc 6, an inner circular arc 9 extends from the annular inner side of the blade ring base body 2, and a fifth circular arc 10 and a sixth circular arc 11 are respectively arranged on the third circular arc 7 and the upper surface and the lower surface of the blade ring base body 2.
In the present invention, the arc radius of the first arc 5 is R1, the arc radius of the second arc 6 is R2, the arc radius of the third arc 7 is R3, the arc radius of the fourth arc 8 is R4, the distance from the vertex of the first arc 5 tangent to the second arc 6 to the lower surface is h1, the height difference from the point of the distance h2 between the surface of the first arc 5 and the lower surface of the blade ring base 2 to the tangent point between the first arc 5 and the second arc 6 is t1, the height difference from the point of the distance h3 between the surface of the second arc 6 and the lower surface of the blade ring base 2 to the tangent point between the first arc 5 and the second arc 6 is t2, the radius of the arc 9 of the inner circular surface is R5, the arc radius of the fifth arc 10 is R6, and the arc radius of the sixth arc 11 is R7.
In the present invention, H is 0.6mm, R1 is 1.08mm, R2 is 0, R3 is 0.075mm, R4 is 0.075mm, R5 is 0.35mm, R6 is 0.01mm, R7 is 0.01mm, t1 is 35um, H1 is 0.11mm, and H2 is 0.39 mm.
In the invention, the sum of the width of the scraping ring base body 2, the inner circular arc 9 and the surface circular arc is T, and T is 3.8 mm.
The invention also discloses a preparation method of the asymmetric scraper ring and the scraper ring of the three-combination piston oil ring, which comprises the following steps: the method comprises the following steps:
designing a raw material-forming wire rod of the asymmetric barrel surface scraping blade according to the size of the scraping blade ring;
step two, continuously annealing and drawing round steel wires with the diameter phi of 3.2mm for 3-5 times to reach the diameter of 2.0 mm;
rolling and roughing the wire rod for 4-5 times to obtain the basic shape and size of the wire rod;
correcting the shape and size of the cylindrical asymmetric barrel shape of the wire rod through die drawing to achieve the final size of the wire rod;
and fifthly, quenching, tempering and quenching to form a tempered martensite structure with uniform structure.
Winding the wire rod into a circle according to the diameter requirement of the scraping ring to form a barrel;
seventhly, cleaning the surface of the scraping blade ring by using hydrocarbon;
step eight, carrying out corresponding surface treatment according to design, wherein the surface treatment is one or combination treatment of a nitride layer, a chromium coating, a ceramic composite coating and a diamond-like coating;
step nine, grinding the outer circular surface by a grinder to realize the roughness Ra0.3 mu m and the roughness Rz1.5 mu m below;
tenthly, phosphorizing or oxidizing the surface to form an antirust and anticorrosive protective film;
eleven, deburring the cut part and the opening part through polishing equipment;
and step twelve, utilizing a laser inspection instrument to identify the direction and marking a corresponding mark to form a final finished product.
In the invention, the polishing equipment comprises a support frame 12, a support box 13 is fixedly connected to the top of the support frame 12, a servo motor 14 is fixedly connected to the bottom of the inner cavity of the support box 13, the output end of the servo motor 14 is fixedly connected with a rotating shaft 15 through a coupler, hollow sleeves 16 are fixedly connected to both sides of the top of the support box 13, a gear box 17 is fixedly connected between the opposite sides of the two hollow sleeves 16, the top end of the rotating shaft 15 sequentially penetrates through the support box 13 and the gear box 17 and extends into the gear box 17, connecting shafts 18 are rotatably connected to both sides of the inner wall of each hollow sleeve 16, a first bevel gear 19 is fixedly connected to the outer surface of the rotating shaft 15, a second bevel gear 20 is fixedly connected to the outer surface of each connecting shaft 18, and the outer surface of the second bevel gear 20 is meshed with the outer surface of the first bevel gear 19, be located the right side 18 outer fixed surface of connecting axle is connected with the fine grinding wheel 21, is located the left side the outer fixed surface of connecting axle 18 is connected with rough grinding wheel 22, and the one end fixed connection of hollow cover 16 has wrapping cover 23, the positive equal fixedly connected with bracing piece 24 in both sides of supporting box 13, the one end fixedly connected with supporting shoe 25 of bracing piece 24, one side fixedly connected with horizontal pole 26 of supporting shoe 25, the outer fixed surface of horizontal pole 26 is connected with supports cover 28, the internal surface fixed connection of supporting cover 28 has montant 29, the top of montant 29 is provided with receipts back board 31 through coupling assembling 30, wrap up one side fixed connection baffle 27 of cover 23.
In the invention, the connecting assembly 30 comprises a connecting sleeve 301, a sleeve groove 302 is arranged on the outer surface and the bottom end of the connecting sleeve 301, the top end of the vertical rod 29 is provided with a clamping groove 300, the inner surface of the clamping groove 303 is fixedly connected with a clamping ring 304, a plurality of clamping grooves 303 are fixedly connected to the inner surface of the snap ring 304, a fixing plate 305 is fixedly connected to the inner surface of the sleeve groove 302, a pressing block 306 is fixedly connected to the top of the fixing plate 305, the top of the pressing block 306 penetrates through the connecting sleeve 301 and extends to the outside of the connecting sleeve 301, the bottom of the fixing plate 305 is fixedly connected with a limiting rod 307, the outer surface of the limiting rod 307 is fixedly connected with a plurality of clamping rods 308, the outer surface of the clamping rod 308 is in contact with the inner surface of the clamping groove 303, the outer surface of the limiting rod 307 is sleeved with a spring 309, and the top end of the spring 309 is fixedly connected with the bottom of the fixing plate 305.
In the invention, the use method of the polishing equipment comprises the following steps: the servo motor 14 is electrically connected with an external power supply, so that the servo motor 14 drives the rotating shaft 15 to rotate, the first bevel gear 19 is driven to rotate, the second bevel gear 20 can drive the connecting shaft 18 to rotate inside the hollow sleeve 16 through the matching between the first bevel gear 19 and the second bevel gear 20, and the fine grinding wheel 21 and the rough grinding wheel 22 rotate in the wrapping sleeve 23;
at this time, the doctor blade ring is positioned below the baffle plate 27 and is contacted with the outer surface of the rough grinding wheel 22 or the fine grinding wheel 21 so as to grind the doctor blade ring, and the scraps generated during grinding are blocked by the baffle plate 27 and fall into the recovery plate 31;
after polishing, stop servo motor 14 through external power source, and press down and press block 306, make adapter sleeve 301 at the surface downstream of montant 29, and then make spring 309 compressed, gag lever post 307 slides to the inside of joint groove 300 simultaneously, and the inside roll-off of card pole 308 from draw-in groove 303 under the effect on inclined plane, card pole 308 and draw-in groove 303 staggered arrangement this moment, thereby can take off adapter sleeve 301 together with receipts back plate 31, pour the waste material of grinding.
Comparative test
Referring to fig. 3, a cross-sectional view of a conventional oil ring scraper ring is shown,
comparative example 1: the inner circle side a and the outer circle side b of the scraper ring are both semicircular, the radius of the semicircular shape is 0.5 times of that of the scraper ring of the traditional oil ring, the height of the traditional scraper ring is 0.3mm, the width of the traditional scraper ring is 1.4mm, the radius of the inner circle side arc is 0.15mm, and the radius of the outer circle side arc is 0.15 mm;
comparative example 2: the inner circle side and the outer circle side of the scraper ring are both semicircular, the radius of the semicircular is 0.5 times of that of the scraper ring of the traditional oil ring, the height of the traditional scraper ring is 0.4mm, the width of the traditional scraper ring is 1.8mm, the radius of the inner circle side arc is 0.2mm, and the radius of the outer circle side arc is 0.2 mm;
comparative example 3: the inner circle side and the outer circle side of the scraper ring are both semicircular, the radius of the semicircular shape is 0.5 times of that of the scraper ring of the traditional oil ring, the height of the traditional scraper ring is 0.6mm, the width of the traditional scraper ring is 3.8mm, the radius of the inner circle side arc is 0.3mm, and the radius of the outer circle side arc is 0.3 mm.
The blade ring of example 1 and the blade ring of comparative example 1 were placed on the same engine for a 500 hour bench test; the blade ring of example 2 and the blade ring of comparative example 2 were placed on the same engine for a 400 hour bench test; the blade ring of example 3 and the blade ring of comparative example 3 were subjected to a 500 hour bench test on the same engine, resulting in the following table 1:
TABLE 1
As can be seen from Table 1, the scraper ring of the invention has great significance in improving the engine oil consumption of an engine and reducing the abrasion of the outer circular surface of the scraper ring and the abrasion of the ear part of the backing ring.
The invention discloses a preparation method of an asymmetric scraper ring, a three-combination piston oil ring and a scraper ring, which comprises the following steps:
the method comprises the following steps:
designing a raw material-forming wire of the asymmetric barrel surface scraping blade according to the size of the scraping blade ring;
step two, continuously annealing and drawing round steel wires with the diameter phi of 3.2mm for 3-5 times to reach the diameter of 2.0 mm;
rolling and rough machining are carried out for 4-5 times by using rollers to obtain the basic shape and size of the wire;
correcting the shape and size of the cylindrical asymmetric barrel shape of the wire rod through die drawing to achieve the final size of the wire rod;
and fifthly, quenching, tempering and quenching to form a tempered martensite structure with uniform structure.
Winding the wire rod into a circle according to the diameter requirement of the scraping ring to form a barrel;
seventhly, cleaning the surface of the scraping blade ring by using hydrocarbon;
step eight, carrying out corresponding surface treatment according to design, wherein the surface treatment is one or combination treatment of a nitride layer, a chromium coating, a ceramic composite coating and a diamond-like coating;
step nine, grinding the outer circular surface by a grinder to realize the roughness Ra0.3 mu m and Rz1.5 mu m below;
tenthly, phosphorizing or oxidizing the surface to form an antirust and anticorrosive protective film;
eleven, deburring the cut part and the opening part through polishing equipment;
and step twelve, utilizing a laser inspection instrument to identify the direction and marking a corresponding mark to form a final finished product.
The second method comprises the following steps:
firstly, winding a common scraper ring raw material into a circle according to the diameter requirement of the scraper ring to form a barrel;
sleeving an expansion rubber sleeve on the side of the inner circle of the barrel to provide expansion elasticity for the inner circle of the barrel so as to prevent deformation;
grinding the outer circle surface of the barrel by using a numerical control manufacturing grinding machine to realize that the outer circle is an asymmetric barrel surface;
cleaning the surface of the scraping blade ring by using hydrocarbon;
performing corresponding surface treatment according to design, wherein the surface treatment is one or combination treatment of a nitride layer, a chromium coating, a ceramic composite coating and a diamond-like coating;
step six, grinding the outer circle surface by grinding equipment to realize the roughness Ra0.3 mu m and Rz1.5 mu m below;
performing phosphorization or oxidation treatment on the surface to form an antirust and anticorrosive protective film;
step eight, cutting off and opening to remove burrs;
and step nine, utilizing a laser inspection tester to identify the direction and marking a corresponding mark to form a final finished product.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.
Claims (6)
1. The asymmetric scraper ring and the three-combination piston oil ring are characterized by comprising a lining ring body (1), two groups of scraper ring base bodies (2), a piston (3) and a cylinder sleeve (4), wherein the two groups of scraper ring base bodies (2) are parallel to each other, four sections of circular arcs are arranged on the excircle side of the scraper ring base body (2), a first circular arc (5) is arranged from the vertex of the excircle surface of the scraper ring base body (2) to the upper side surface, a second circular arc (6) is arranged from the vertex of the excircle surface of the scraper ring base body (2) to the lower side surface, the first circular arc (5) and the second circular arc (6) are connected and cut at the vertex, a third circular arc (7) is arranged on the upper side surface of the scraper ring base body (2) and on one side of the first circular arc (5), a fourth circular arc (8) is arranged on the lower side surface of the scraper ring base body (2) and on one side of the second circular arc (6), an inner circular arc (9) extends from the annular inner side of the scraper ring base body (2), and a fifth circular arc (10) and a sixth circular arc (11) are respectively arranged on the third circular arc (7) and positioned on the upper surface and the lower surface of the scraper ring base body (2);
the arc radius of the first arc (5) is R1, the arc radius of the second arc (6) is R2, the arc radius of the third arc (7) is R3, the arc radius of the fourth arc (8) is R4, the distance from the vertex tangent to the first circular arc (5) and the second circular arc (6) to the lower side surface is h1, the height difference from the point of the distance h2 between the surface of the first arc (5) and the lower side surface of the scraper ring base body (2) to the tangent point between the first arc (5) and the second arc (6) is t1, the height difference from the point of the distance h3 between the surface of the second arc (6) and the lower side surface of the scraper ring base body (2) to the tangent point between the first arc (5) and the second arc (6) is t2, the radius of the inner circular arc (9) is R5, the radius of the fifth circular arc (10) is R6, and the radius of the sixth circular arc (11) is R7;
r1 is 1.4H-2.3H, R2 is 0-0.5H, R3 is 0.05-0.1 mm, R4 is 0.05-0.3 mm, H1 is 0.2H-0.35H, H2 is 0.65H-0.85H, H3 is 0.15H-0.3H, t1 is 10-35 μm, t2 is 0-8 μm, R5 is 0.3-0.4 mm, R6 is 0.05-0.15 mm, and R7 is 0.05-0.15 mm, wherein H is the height of the wiper ring, and the range of H is 0.3-0.6 mm.
2. The asymmetric doctor ring, three-in-one piston oil ring as claimed in claim 1, wherein the sum of the width of the doctor ring base (2) and the inner circular arc (9), the surface circular arc is T, T ranging from 1.4mm to 3.8 mm.
3. A preparation method of an asymmetric scraper ring and a scraper ring of a three-combination piston oil ring is characterized by comprising the following steps:
designing a raw material-forming wire of the asymmetric barrel surface scraping blade according to the size of the scraping blade ring;
step two, continuously annealing and drawing round steel wires with the diameter phi of 3.2mm for 3-5 times to reach the diameter of 2.0 mm;
rolling and rough machining are carried out for 4-5 times by using rollers to obtain the basic shape and size of the wire;
correcting the shape and size of the cylindrical asymmetric barrel shape of the wire rod through die drawing to achieve the final size of the wire rod;
step five, forming a tempered martensite structure with uniform structure through quenching and tempering and quenching and tempering;
winding the wire rod into a circle according to the diameter requirement of the scraping ring to form a barrel;
seventhly, cleaning the surface of the scraping blade ring by using hydrocarbon;
step eight, carrying out corresponding surface treatment according to design, wherein the surface treatment is one or combination treatment of a nitride layer, a chromium coating, a ceramic composite coating and a diamond-like coating;
step nine, grinding the outer circular surface by a grinder to realize the roughness Ra0.3 mu m and Rz1.5 mu m below;
tenthly, phosphorizing or oxidizing the surface to form an antirust and anticorrosive protective film;
eleven, deburring the cut part and the opening part through polishing equipment;
and step twelve, utilizing a laser inspection instrument to identify the direction and marking a corresponding mark to form a final finished product.
4. The preparation method of the scraping ring of the asymmetric scraping ring and the three-combination piston oil ring as claimed in claim 3, wherein the grinding device comprises a support frame (12), a support box (13) is fixedly connected to the top of the support frame (12), a servo motor (14) is fixedly connected to the bottom of the inner cavity of the support box (13), a rotating shaft (15) is fixedly connected to the output end of the servo motor (14) through a coupler, hollow sleeves (16) are fixedly connected to both sides of the top of the support box (13), a gear box (17) is fixedly connected between the two opposite sides of the hollow sleeves (16), the top end of the rotating shaft (15) sequentially penetrates through the support box (13) and the gear box (17) and extends into the gear box (17), a connecting shaft (18) is rotatably connected to both sides of the inner wall of the hollow sleeve (16), the outer surface of the rotating shaft (15) is fixedly connected with a first bevel gear (19), the outer surface of the connecting shaft (18) is fixedly connected with a second bevel gear (20), the outer surface of the second bevel gear (20) is meshed with the outer surface of the first bevel gear (19), the right side is positioned, the outer surface of the connecting shaft (18) is fixedly connected with a fine grinding wheel (21), the left side is positioned, the outer surface of the connecting shaft (18) is fixedly connected with a rough grinding wheel (22), one end of the hollow sleeve (16) is fixedly connected with a wrapping sleeve (23), two front sides of the supporting box (13) are fixedly connected with supporting rods (24), one end of each supporting rod (24) is fixedly connected with a supporting block (25), one side of each supporting block (25) is fixedly connected with a cross rod (26), the outer surface of each cross rod (26) is fixedly connected with a supporting sleeve (28), and the inner surface of each supporting sleeve (28) is fixedly connected with a vertical rod (29), the top end of the vertical rod (29) is provided with a retraction plate (31) through a connecting assembly (30), and one side of the wrapping sleeve (23) is fixedly connected with a baffle plate (27).
5. The manufacturing method of the scraper ring of the asymmetric scraper ring and the three-combination piston oil ring as claimed in claim 4, wherein the connecting assembly (30) comprises a connecting sleeve (301) and a clamping groove (303), a sleeve groove (302) is formed on the outer surface and the bottom end of the connecting sleeve (301), a clamping groove (300) is formed on the top end of the vertical rod (29), a snap ring (304) is fixedly connected to the inner surface of the clamping groove (303), a plurality of clamping grooves (303) are fixedly connected to the inner surface of the snap ring (304), a fixing plate (305) is fixedly connected to the inner surface of the sleeve groove (302), a pressing block (306) is fixedly connected to the top of the fixing plate (305), the top of the pressing block (306) penetrates through the connecting sleeve (301) and extends to the outside of the connecting sleeve (301), and a limiting rod (307) is fixedly connected to the bottom of the fixing plate (305), the outer surface fixed connection of gag lever post (307) has a plurality of kelly (308), the surface of kelly (308) contacts with the internal surface of draw-in groove (303), the surface cover of gag lever post (307) is equipped with spring (309), the top of spring (309) and the bottom fixed connection of fixed plate (305).
6. The method of claim 5, wherein the grinding apparatus is used in the form of a three-piece combination oil ring comprising: the servo motor (14) is electrically connected with an external power supply, so that the servo motor (14) drives the rotating shaft (15) to rotate, the first bevel gear (19) is driven to rotate, the second bevel gear (20) can drive the connecting shaft (18) to rotate inside the hollow sleeve (16) through the matching between the first bevel gear (19) and the second bevel gear (20), and the fine grinding wheel (21) and the rough grinding wheel (22) rotate in the wrapping sleeve (23);
the scraping ring is positioned below the baffle plate (27) and is contacted with the outer surface of the rough grinding wheel (22) or the fine grinding wheel (21) so as to grind the scraping ring, and the scraps generated during grinding are blocked by the baffle plate (27) and fall into the recovery plate (31);
after polishing, stop servo motor (14) through external power source, and press down and press piece (306), make adapter sleeve (301) at the surface downstream of montant (29), and then make spring (309) compressed, gag lever post (307) slide to the inside in joint groove (300) simultaneously, and inside roll-off of draw-in groove (303) is followed in draw-in groove (308) under the effect on inclined plane, draw-in groove (308) and draw-in groove (303) crisscross setting this moment, thereby can take off adapter sleeve (301) together with receipts back plate (31), the waste material of will grinding falls.
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|---|---|---|---|---|
| CN105849444A (en) * | 2014-09-12 | 2016-08-10 | 帝伯爱尔株式会社 | Combined oil ring |
| JP2018009705A (en) * | 2017-10-04 | 2018-01-18 | マツダ株式会社 | Oil ring |
| CN207847787U (en) * | 2018-01-12 | 2018-09-11 | 仪征亚新科双环活塞环有限公司 | A kind of doctor blade ring of internal-combustion engine piston ring compound oil ring |
| CN110382930A (en) * | 2018-01-16 | 2019-10-25 | 帝伯爱尔株式会社 | Compound oil ring |
| WO2020158949A1 (en) * | 2019-02-01 | 2020-08-06 | 日本ピストンリング株式会社 | Multi-piece oil ring |
-
2021
- 2021-03-10 CN CN202110259828.9A patent/CN113153566B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105849444A (en) * | 2014-09-12 | 2016-08-10 | 帝伯爱尔株式会社 | Combined oil ring |
| JP2018009705A (en) * | 2017-10-04 | 2018-01-18 | マツダ株式会社 | Oil ring |
| CN207847787U (en) * | 2018-01-12 | 2018-09-11 | 仪征亚新科双环活塞环有限公司 | A kind of doctor blade ring of internal-combustion engine piston ring compound oil ring |
| CN110382930A (en) * | 2018-01-16 | 2019-10-25 | 帝伯爱尔株式会社 | Compound oil ring |
| WO2020158949A1 (en) * | 2019-02-01 | 2020-08-06 | 日本ピストンリング株式会社 | Multi-piece oil ring |
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| CN113153566A (en) | 2021-07-23 |
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