CN111963681A - Piston ring of reciprocating compressor - Google Patents
Piston ring of reciprocating compressor Download PDFInfo
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- CN111963681A CN111963681A CN202010774958.1A CN202010774958A CN111963681A CN 111963681 A CN111963681 A CN 111963681A CN 202010774958 A CN202010774958 A CN 202010774958A CN 111963681 A CN111963681 A CN 111963681A
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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
- F16J9/206—One-piece oil-scraping rings
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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
- F16J9/14—Joint-closures
- F16J9/16—Joint-closures obtained by stacking of rings
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention belongs to the technical field of reciprocating compressors, and particularly relates to a piston ring of a reciprocating compressor, which comprises a compression first ring, a compression second ring and an oil body main ring, wherein the compression first ring comprises a first upper lapping block and a first lower lapping block, the left end of the first upper lapping block and the right end of the first lower lapping block are respectively provided with a ring lapping port, the bottom of the first upper lapping block is tightly attached to the top surface of the first lower lapping block, the left side and the right side of the bottom of the compression first ring are respectively and fixedly connected with a permanent magnet block vertically, the oil body main ring comprises an upper oil scraping lip and a lower oil scraping lip, the center of a ring body of the oil body main ring is provided with oil return holes in an equidistant and horizontal penetrating manner, and the right end of the oil body main ring is; the invention can be beneficial to forming a lubricating oil film, reduces leakage and abrasion, can greatly help all piston rings to conduct heat out most quickly, avoids various negative effects caused by high temperature, avoids the phenomenon that the oil film is not easy to form due to over smoothness, and reduces the manufacturing cost.
Description
Technical Field
The invention belongs to the technical field of reciprocating compressors, and particularly relates to a piston ring of a reciprocating compressor.
Background
The reciprocating compressor is a compressor which can make the volume period of cylinder body change and can implement supercharging and conveying of gas by means of reciprocating motion of piston or diaphragm in the cylinder, belonging to volume type compressor, and is divided into piston type compressor and diaphragm type compressor according to the component making reciprocating motion, and because of the relationship of design principle, it can determine many characteristics of piston compressor, for example, there are more moving components, such as air inlet valve, exhaust valve, piston ring, connecting rod, crankshaft and bearing bush; for example, the stress is unbalanced, and the reciprocating inertia force cannot be controlled; for example, multi-stage compression is needed, and the structure is complex; further, for example, due to the reciprocating motion, the compressed air is not continuously discharged, has pulsation, or the like.
The piston ring is used as an important part of the reciprocating compressor, the outer side of the ring body of the existing piston ring is not beneficial to forming a lubricating oil film, leakage and abrasion are easy, meanwhile, the ring body and the inner wall of a compressor body are too smooth after long-time friction, so that the oil film is not easy to form, fine sand paper or oilstone is used for carrying out axial grinding along the inner wall of the compressor body after the piston ring is used for a period of time, and the piston ring is complicated to use and too easy to operate, so that the requirement of current people on.
Disclosure of Invention
The object of the present invention is to provide a piston ring for a reciprocating compressor, which solves the problems set forth in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a piston ring of a reciprocating compressor comprises a compression first ring, two compression rings and an oil body main ring, wherein the compression first ring comprises a first upper lapping block and a first lower lapping block, a ring lapping port is respectively formed in the left end of the first upper lapping block and the right end of the first lower lapping block, the bottom of the first upper lapping block is tightly attached to the top surface of the first lower lapping block, and the left side and the right side of the bottom of the compression first ring are respectively and fixedly connected with a permanent magnet block vertically;
the right angle is respectively chamfered into a round angle by the peripheral edge of the outer side of the top part and the peripheral edge of the outer side of the bottom part of the compression ring, and the degree of the round angle is forty-five degrees;
the right angle is chamfered into a round angle at the left side edge of the top of the first upper lapping block, the round angle is forty-five degrees, the right angle is chamfered into a round angle at the right side edge of the bottom of the first lower lapping block, and the round angle is forty-five degrees;
the sizes of the two openings of the one ring lap are consistent, the right angle is respectively inverted into a fillet from the inner side edge and the outer side edge of the two ring lap, and the fillet is thirty degrees.
According to the preferable technical scheme of the piston ring of the reciprocating compressor, the compression double ring comprises a second upper lapping block and a second lower lapping block, a double-ring lapping opening is formed in the left end of the second upper lapping block and the right end of the second lower lapping block respectively, the bottom of the second upper lapping block is tightly attached to the surface of the top of the second lapping opening, and the left side and the right side of the top of the compression double ring are respectively downwards vertically penetrated and provided with limiting adsorption grooves;
the right angle is respectively chamfered into a fillet at the periphery of the outer side of the top and the periphery of the outer side of the bottom of the compression double ring, and the fillet degrees are thirty-five degrees;
the right angle is chamfered into a round angle at the left side edge of the top of the second upper lapping block, the round angle is forty-five degrees, the right angle is chamfered into a round angle at the right side edge of the bottom of the second lower lapping block, and the round angle is forty-five degrees;
two the dicyclo overlap opening size is unanimous, two the inboard edge of dicyclo overlap opening and outside edge are respectively with right angle down for the fillet, and above-mentioned fillet is thirty degrees.
As the preferable technical scheme of the piston ring of the reciprocating compressor, the oil body main ring comprises an upper oil scraping lip and a lower oil scraping lip, oil return holes are horizontally penetrated in the center of the oil body main ring body at equal intervals, and oil ring air holes are vertically penetrated in the right end of the oil body main ring;
the right angle is respectively turned into the fillet with a bottom outside week edge to an oil body owner ring portion outside week edge, and the number of degrees of above-mentioned fillet is forty-five degrees.
According to the preferable technical scheme of the piston ring of the reciprocating compressor, the two permanent magnet blocks are consistent in structural size, the two limit adsorption grooves are consistent in inner cavity structural size, the bottoms of the two permanent magnet blocks and the tops of the two limit adsorption grooves are respectively located in the same vertical direction, the height of the inner cavity of the limit adsorption groove is consistent with that of the permanent magnet blocks, and the width of the inner cavity of the limit adsorption groove is twice the outer diameter of the permanent magnet blocks.
As the preferable technical scheme of the piston ring of the reciprocating compressor, the upper oil scraping lips are respectively fixed at the top of the oil return hole, the lower oil scraping lips are respectively fixed at the bottom of the oil return hole, the heights of the upper oil scraping lips, the lower oil scraping lips and the oil return hole are all one third of the height of a main ring of an oil body, and the vertical cross section of an inner cavity of the oil return hole is of a right-angled rectangular structure.
As a preferable technical solution of the piston ring of the reciprocating compressor of the present invention, the size of the first ring lap is the same as the size of the opening of the second ring lap, and the size of the opening of the oil ring air hole is twice as large as the size of the first ring lap and the size of the opening of the second ring lap.
As a preferred technical solution of the piston ring of the reciprocating compressor of the present invention, the compression one ring, the compression two rings and the oil body main ring are respectively connected to the inner wall of the compressor body through a sliding connection by friction force at a circumference outside the compression one ring, the compression two rings and the oil body main ring, the outer diameter of the compression one ring, the compression two rings and the oil body main ring is matched with the inner wall of the compressor body, and the inner diameter of the compression one ring, the compression two rings and the oil body main ring is matched with the outer diameter of the top of.
Compared with the prior art, the invention has the beneficial effects that:
1. in the invention, the upper and lower edges of the compression one ring, the compression two rings and the oil body main ring are respectively converted into round angles from right angles, thus, the outer right angles of all piston rings are all chamfered into small round angles, which is beneficial to forming a lubricating oil film, reducing leakage and abrasion, simultaneously, the outer sides of the first upper lapping block, the first lower lapping block, the second upper lapping block and the second lower lapping block are respectively chamfered into round angles, simultaneously, the lap openings of two round corners are matched, so that the small drum L-shaped backflow type small airflow can be formed between the compression ring and the compression ring when in use, and each time the compression ring, the compression two rings and the oil body main ring three rings are impacted, the mutual reverse force can be ensured to be formed among the compression ring, the compression two rings and the oil body main ring three rings, and the impact force between the two groups of four blocks and the whole ring body is weakened, the loss caused by the two groups of four blocks is reduced, and the service life is prolonged.
2. The invention is based on that the fillet degrees of the outer edges of the compression one ring and the oil body main ring are forty-five degrees, the fillet degrees of the edges of the compression two rings are thirty-five degrees, and the compression one ring and the oil body main ring are used by clamping the compression two rings by the compression one ring and the oil body main ring in sequence when in use, so that when the compression one ring, the compression two rings and the oil body main ring are regarded as a whole, three fillets of the forty-five degrees, the thirty-five degrees and the forty-five degrees can be changed in a step manner, two ring grooves can be formed when the compression two ring grooves are integrated, the two ring grooves can increase the friction force between three piston rings and the inner wall of the reciprocating compressor, so that the smoothness between the friction ring and the inner wall of the compressor piston ring is reduced when in use, the phenomenon that an oil film is not easy to form due to excessive smoothness is avoided, the manufacturing cost is reduced, and the tedious operation that the thin abrasive paper, the defects are eliminated, so that air leakage is avoided, and the whole service life of the piston ring is prolonged.
3. In the invention, through two groups of permanent magnets and two groups of limit adsorption grooves, two groups of permanent magnets can be directly inserted into the inner cavities of the two groups of limit adsorption grooves respectively with the help of magnetic force during each reciprocating, so that the mutual positions of the compressed ring and the compressed two rings are not changed after the rings are repeatedly reciprocated, and the relative positions between the lap of the ring and the lap of the two rings are also not changed, in addition, the outsides of the compressed ring, the compressed two rings and the oil body main ring are respectively plated with the graphene layer and are covered with the fluorine lubricating grease layer, thus after repeated reciprocating, the graphene layer can greatly help all piston rings to quickly conduct heat out, various negative effects caused by high temperature are avoided, in addition, the fluorine lubricating grease layer has excellent heat resistance, strong bearing capacity, non-combustion, oil resistance, solvent resistance, oxidation resistance and various chemical product resistance, the lubricating oil composition can provide excellent composite lubricating performance under extremely severe working conditions, and has better effect and stronger practicability when being matched with other lubricating oil for use.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic cross-sectional view of the main ring of the oil body of the present invention;
FIG. 4 is a schematic cross-sectional view of a compression ring according to the present invention.
Reference numbers in the figures: 1. compressing a ring; 2. compressing the two rings; 3. an oil body main ring; 4. a first upper lapping block; 5. a first lower lapping block; 6. a ring lap; 7. a second upper lapping block; 8. a second lower lapping block; 9. a two-ring lap joint; 10. a permanent magnet block; 11. a limiting adsorption groove; 12. an upper oil scraping lip; 13. a lower oil scraping lip; 14. an oil return hole; 15. a graphene layer; 16. a fluorine grease layer; 17. a compressor body; 18. and (7) oil ring air holes.
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 embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Example 1
Referring to fig. 1 to 4, the present invention provides a piston ring for a reciprocating compressor, comprising: a piston ring of a reciprocating compressor comprises a compression first ring 1, a compression second ring 2 and an oil body main ring 3, wherein the compression first ring 1 comprises a first upper lapping block 4 and a first lower lapping block 5, a ring lapping opening 6 is respectively formed in the left end of the first upper lapping block 4 and the right end of the first lower lapping block 5, the bottom of the first upper lapping block 4 is tightly attached to the top surface of the first lower lapping block 5, and the left side and the right side of the bottom of the compression first ring 1 are respectively and vertically and fixedly connected with a permanent magnet block 10; compressing the periphery of the outer side of the top of the first ring 1 and the periphery of the outer side of the bottom of the first ring 1 to respectively chamfer a right angle into a fillet, wherein the degree of each fillet is forty-five degrees; the right angle is chamfered into a round angle at the left side edge of the top of the first upper lapping block 4, the round angle is forty-five degrees, the right angle is chamfered into a round angle at the right side edge of the bottom of the first lower lapping block 5, and the round angle is forty-five degrees; two 6 opening sizes of a ring take the mouth unanimously, two 6 inboard edges of a ring take the mouth and the outside edge is the fillet with the right angle respectively, above-mentioned fillet is thirty degrees, to sum up can guarantee to compress a ring 1 when using, can form the little air current of backward flow formula of snare drum "L" shape between the two rings of compression 2, and then compress a ring 1 every time, can guarantee to form a counterforce between them when compressing two rings of 2 and the 3 three rings of oil body main ring clashes, and the impact between two sets of four pieces of taking and the whole ring body weakens the consume that self brought.
Example 2
On the basis of the embodiment 1, the compression double ring 2 comprises a second upper overlapping block 7 and a second lower overlapping block 8, the left end of the second upper overlapping block 7 and the right end of the second lower overlapping block 8 are respectively provided with a double-ring overlapping opening 9, the bottom of the second upper overlapping block 7 is tightly attached to the top surface of the second double-ring overlapping opening 9, the left side and the right side of the top of the compression double ring 2 are respectively downwards vertically penetrated and provided with a limiting adsorption groove 11, and the permanent magnet block 10 can be inserted into and separated from the limiting adsorption groove 11 when reciprocating each time; the right angle is respectively chamfered into a fillet at the periphery of the outer side of the top and the periphery of the outer side of the bottom of the compression double ring 2, and the fillet degrees are thirty-five degrees; the right angle is chamfered into a round angle at the left side edge of the top of the second upper lapping block 7, the round angle is forty-five degrees, the right angle is chamfered into a round angle at the right side edge of the bottom of the second lower lapping block 8, and the round angle is forty-five degrees; the opening sizes of the two ring openings 9 are consistent, the right angles are respectively inverted into round corners by the inner side edges and the outer side edges of the two ring openings 9, and the round corners are thirty degrees.
Specifically, the oil body main ring 3 comprises an upper oil scraping lip 12 and a lower oil scraping lip 13, oil return holes 14 are horizontally penetrated and arranged in the center of the ring body of the oil body main ring 3 at equal intervals, and an oil ring air hole 18 is vertically penetrated and arranged at the right end of the oil body main ring 3; the right angle is chamfered to the fillet respectively with a bottom outside week edge in 3 outsides of oil body owner ring edge in the outside, the number of degrees of above-mentioned fillet is forty-five degrees, the outward flange fillet number of degrees based on compression ring 1 and oil body owner ring 3 is forty-five degrees, 2 marginal fillet numbers in two ring compression rings simultaneously are thirty-five degrees, and based on compression ring 1, compression ring 2 and oil body owner ring 3 order when using are compression ring 1 and oil body owner ring 3 clip compression ring 2 and use, like this when regarding the three as a whole, forty-five degrees, thirty-five degrees, the three fillet of forty-five degrees just can become the hierarchical change, can form two ring channels when whole.
Specifically, two permanent magnet block 10 structural dimension are all unanimous, 11 inner chamber structural dimension of two spacing adsorption tanks are all unanimous, two permanent magnet block 10 bottoms are located same vertical direction respectively with two spacing adsorption tanks 11 tops, and 11 inner chamber height of spacing adsorption tank and permanent magnet block 10 highly uniform, and 11 inner chamber width in spacing adsorption tank is the 10 external diameter double of permanent magnet block, can not collide the inner wall of 11 deepest in spacing adsorption tank after long-time the use for permanent magnet block 10 like this, avoid the consume of piston ring self.
Specifically, go up the frizing 12 and be fixed in oil gallery 14 top respectively, frizing 13 is fixed in oil gallery 14 bottom respectively down, goes up frizing 12, frizing 13 down, oil gallery 14 highly is the high third of oil body owner ring 3, and the perpendicular cross section of oil gallery 14 inner chamber is the right angle rectangle structure, and what can be clear knows, goes up frizing 12, scrapes oil lip 13 down and scrapes oil when reciprocating motion, and oil gallery 14 will scrape down the oil reservoir backward flow.
Specifically, the opening sizes of the first ring joint 6 and the second ring joint 9 are consistent, and the opening sizes of the oil ring air hole 18 are two times of the opening sizes of the first ring joint 6 and the second ring joint 9 respectively, so that the use rationality of the piston ring is ensured.
Specifically, the inner wall of the compressor body 17 is connected with the outer side of the oil body main ring 3 in a circle through friction force sliding connection respectively through a compression ring 1, a compression ring 2 and the outer diameter of the oil body main ring 3 are matched with the inner wall of the compressor body 17 in size, the inner diameter of the compression ring 1, the compression ring 2 and the oil body main ring 3 is matched with the outer diameter of the top of the piston, and it needs to be explained that the compression ring 1, the compression ring 2 and the oil body main ring 3 need to be manufactured according to the inner size of the matched reciprocating compressor.
Example 3
On the basis of embodiment 2, the outer surfaces of the compression one ring 1, the compression two ring 2 and the oil body main ring 3 are respectively covered with graphene layers 15 through electroplating, the graphene layers 15 covering the outer surfaces of the compression one ring 1, the compression two ring 2 and the oil body main ring 3 are respectively one nanometer in thickness, the graphene layers 15 with one nanometer in thickness can greatly improve the heat conduction performance of the piston ring, the outer surfaces of the compression one ring 1, the compression two ring 2 and the oil body main ring 3 are respectively and uniformly fixed and covered with fluorine grease layers 16, the fluorine grease is Polytetrafluoroethylene (PTFE) thickened perfluoropolyether oil (PFPE), and is refined by adding special additives such as heat-resistant and corrosion-resistant additives to obtain the high-quality long-life multi-effect lubricating grease which has the advantages of safety, no toxicity, good thixotropy and difficult flowing, meanwhile, the paint has excellent heat resistance, strong bearing capacity, no combustion, oil resistance, solvent resistance, oxidation resistance and various chemical resistance; can provide excellent composite lubricating performance under extremely severe working conditions.
In conclusion, the invention is improved as follows: when the piston ring of the reciprocating compressor is used, a compression ring 1, a compression ring 2 and an oil body main ring 3 are divided into an upper position, a middle position and a lower position and are placed at the use position of a piston, the bottoms of two permanent magnet blocks 10 and the tops of two limiting adsorption grooves 11 are respectively positioned in the same vertical direction, then the upper edges and the lower edges of the compression ring 1, the compression ring 2 and the oil body main ring 3 are respectively converted into round corners from right angles, so that the outer right angles of all piston rings are all inverted into small round corners, a lubricating oil film can be favorably formed, leakage and abrasion are reduced, meanwhile, the outer sides of a first upper lapping block 4, a first lower lapping block 5, a second upper lapping block 7 and a second lower lapping block 8 are respectively inverted into round corners, and meanwhile, the lapping ports of the two round corners are matched, so that small drum L-shaped backflow type small air flows can be formed between the compression ring 1 and the compression ring 2 in use, and then can guarantee to form a mutual reverse force between the ring 1 of each compression, the compression two-ring 2 and the oil body main ring 3 three rings are collided, then based on the compression one ring 1 and the oil body main ring 3 the outer edge fillet degree is forty-five degrees, at the same time the compression two-ring 2 edge fillet degree is thirty-five degrees, and based on the compression one ring 1, the compression two-ring 2 and the oil body main ring 3 in the sequence of using, the compression one ring 1 and the oil body main ring 3 clamp the compression two-ring 2 to use, thus when considering the three as a whole, the three fillets of forty-five degrees, thirty-five degrees, forty-five degrees can become the step change, can form two ring grooves in the whole, these two ring grooves can increase the friction force of three piston rings and the reciprocating compressor inner wall, make this friction ring and the smoothness between the compressor body 17 inner wall reduce when using, then when reciprocating at every turn, two sets of permanent magnet blocks 10 can be directly inserted to two sets of spacing adsorption tanks 11 inner chambers under the help of magnetic force respectively, guarantee to compress a ring 1, it does not change to compress two rings 2 mutual position after reciprocating many times, also guarantee that the relative position between a ring joint 6 and two ring joints 9 does not change, compress a ring 1 in addition, compress two rings 2 and oil body owner and encircle 3 the outside and electroplate respectively that there is graphite alkene layer 15 and cover and have fluorine element lubricating grease layer 16, after reciprocating many times, graphite alkene layer 15 can be very big help all piston rings to go out the fastest conduction of heat, need add the lubricant or the lubricating oil that accord with the standard when using simultaneously, cooperate with fluorine element lubricating grease layer 16 to use, the performance is better.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Claims (7)
1. A piston ring for a reciprocating compressor, comprising a compression ring (1), a compression ring (2) and an oil body main ring (3), characterized in that: the compression first ring (1) comprises a first upper overlapping block (4) and a first lower overlapping block (5), a ring overlapping opening (6) is formed in the left end of the first upper overlapping block (4) and the right end of the first lower overlapping block (5) respectively, the bottom of the first upper overlapping block (4) is tightly attached to the top surface of the first lower overlapping block (5), and the left side and the right side of the bottom of the compression first ring (1) are vertically and fixedly connected with permanent magnet blocks (10) respectively;
the periphery of the outer side of the top of the compression ring (1) and the periphery of the outer side of the bottom of the compression ring are respectively chamfered into round corners;
the right angle of the left side edge of the top of the first upper overlapping block (4) is rounded, and the right angle of the right side edge of the bottom of the first lower overlapping block (5) is rounded;
the sizes of the openings of the two annular lapping openings (6) are consistent, and the inner side edge and the outer side edge of the two annular lapping openings (6) are respectively formed by chamfering a right angle into a circular angle.
2. A piston ring for a reciprocating compressor according to claim 1, characterized in that: the compression double ring (2) comprises a second upper overlapping block (7) and a second lower overlapping block (8), the left end of the second upper overlapping block (7) and the right end of the second lower overlapping block (8) are respectively provided with a double ring overlapping opening (9), the bottom of the second upper overlapping block (7) is tightly attached to the top surface of the second ring overlapping opening (9), and the left side and the right side of the top of the compression double ring (2) are respectively downwards vertically penetrated and provided with a limiting adsorption groove (11);
the right angle of the periphery of the top outer side of the compression double ring (2) and the periphery of the bottom outer side of the compression double ring are respectively chamfered into round angles;
the right angle of the left side edge of the top of the second upper overlapping block (7) is rounded, and the right angle of the right side edge of the bottom of the second lower overlapping block (8) is rounded;
the sizes of the openings of the two ring lapping openings (9) are consistent, and the inner side edge and the outer side edge of the two ring lapping openings (9) are respectively used for chamfering a right angle into a circular angle.
3. A piston ring for a reciprocating compressor according to claim 1, characterized in that: the oil body main ring (3) comprises an upper oil scraping lip (12) and a lower oil scraping lip (13), oil return holes (14) are formed in the center of a ring body of the oil body main ring (3) in an equidistant and horizontal penetrating mode, and oil ring air holes (18) are formed in the right end of the oil body main ring (3) in a vertical penetrating mode;
the right angle is respectively chamfered into a round angle at the outer side periphery of the oil body main ring (3) and at the outer side periphery of the bottom, and the degrees of the round angle are forty-five degrees.
4. A piston ring for a reciprocating compressor according to claim 2, characterized in that: the structure sizes of the two permanent magnet blocks (10) are all consistent, the structure sizes of the inner cavities of the two limiting adsorption grooves (11) are all consistent, the bottoms of the two permanent magnet blocks (10) and the tops of the two limiting adsorption grooves (11) are respectively located in the same vertical direction, the heights of the inner cavities of the limiting adsorption grooves (11) are consistent with the heights of the permanent magnet blocks (10), and the widths of the inner cavities of the limiting adsorption grooves (11) are twice the outer diameters of the permanent magnet blocks (10).
5. A piston ring for a reciprocating compressor according to claim 3, characterized in that: the upper oil scraping lip (12) is fixed at the top of the oil return hole (14) respectively, the lower oil scraping lip (13) is fixed at the bottom of the oil return hole (14) respectively, the heights of the upper oil scraping lip (12), the lower oil scraping lip (13) and the oil return hole (14) are one third of the height of the oil body main ring (3), and the vertical cross section of the inner cavity of the oil return hole (14) is of a right-angled rectangular structure.
6. A piston ring for a reciprocating compressor according to claim 3, characterized in that: the opening sizes of the first ring joint (6) and the second ring joint (9) are consistent, and the opening sizes of the oil ring air hole (18) are two times of the opening sizes of the first ring joint (6) and the second ring joint (9) respectively.
7. A piston ring for a reciprocating compressor according to claim 1, characterized in that: the oil cylinder is characterized in that a compression ring (1), a compression ring (2) and an oil body main ring (3) are connected with the inner wall of a compressor body (17) in a one-week mode respectively through friction force sliding, the outer diameter of the compression ring (1), the compression ring (2) and the oil body main ring (3) is matched with the inner wall of the compressor body (17) in size, and the inner diameter of the compression ring (1), the compression ring (2) and the oil body main ring (3) is matched with the outer diameter of the top of a piston in size.
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| CN202010774958.1A CN111963681A (en) | 2020-08-05 | 2020-08-05 | Piston ring of reciprocating compressor |
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| CN208380710U (en) * | 2018-06-06 | 2019-01-15 | 南京飞燕活塞环股份有限公司 | A kind of high-performance heavy diesel engine piston ring group |
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2020
- 2020-08-05 CN CN202010774958.1A patent/CN111963681A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010059064A (en) * | 1999-12-30 | 2001-07-06 | 이계안 | Piston apparatus |
| CN2680881Y (en) * | 2004-02-27 | 2005-02-23 | 邓在积 | Magnetic self-sealing piston ring |
| CN201116610Y (en) * | 2007-08-15 | 2008-09-17 | 杨碧平 | Solenoid valve equipped with concave-convex type composite material piston ring |
| CN104937319A (en) * | 2013-01-10 | 2015-09-23 | 联邦摩高布尔沙伊德公司 | Piston ring for internal combustion engines with increased fatigue strength, and method for producing same |
| CN103397950A (en) * | 2013-08-12 | 2013-11-20 | 重庆江润活塞环有限责任公司 | Piston of energy-saving environment-friendly mounting clearance pairing piston ring |
| CN208380710U (en) * | 2018-06-06 | 2019-01-15 | 南京飞燕活塞环股份有限公司 | A kind of high-performance heavy diesel engine piston ring group |
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Application publication date: 20201120 |