Combined piston ring for new energy hybrid automobile engine

Abstract

A combined piston ring used for a new energy hybrid power automobile engine belongs to the technical field of engines and comprises a ring body inner plate in contact with the inner side face of a main body mechanism, an ash discharge groove formed in the ring body inner plate, a scraping plate installed in a groove formed in the ring body inner plate and a plurality of shaking reeds evenly distributed between the two ring bodies. The scraping plate is in contact with the inner wall of a groove formed in the piston; in the working process of an engine, residual carbon deposits on the inner wall of a groove formed in a piston are scraped off in the rotating process of a scraping plate, the carbon deposits enter an ash discharging groove along an inclined face arranged on the scraping plate, a connecting plate makes contact with a shaking reed in the rotating process so that the shaking reed can be intermittently compressed and bounced off, the carbon deposits in the shaking reed can be prevented from being accumulated into blocks, and the service life of the connecting plate is prolonged. The carbon deposition can be effectively prevented from being accumulated in a gap between the piston ring and the piston, the piston ring is blocked, and the work of the piston is influenced.

Description

Technical Field

[0001] The present invention relates to the technical field of engines, and particularly to a combined piston ring used in a new energy hybrid vehicle engine. Background Art

[0002] With the rapid development of modern society and the continuous take-off of the economy, cars, a symbol of convenience and efficiency, have quietly entered thousands of households and become an indispensable part of people's daily travel. In recent years, the country has vigorously promoted the development of the new energy vehicle industry. However, ordinary electric vehicles still show many limitations when dealing with the complex and changeable domestic usage environment. In this context, hybrid vehicles, as a bright star in the field of new energy vehicles, are gradually winning the favor of the market with their unique dual-power system design - they can rely on a fuel engine to provide strong power and also use electric drive to achieve zero-emission driving.

[0003] However, although hybrid vehicles have significant advantages, they also face some unique technical challenges. Among them, the problem that the hybrid engine cannot operate continuously and stably is particularly prominent. This directly affects the normal operation of the exhaust gas recirculation (EGR) system, causing air flow obstruction and potentially leading to engine failures. This is a unique failure point of hybrid vehicles compared to traditional fuel vehicles. To improve fuel economy, hybrid vehicles adopt intelligent start-stop technology, that is, the engine is automatically turned off when the vehicle stops briefly, such as waiting at traffic lights, and the hybrid motor is relied on to maintain the basic functions of the vehicle; when the vehicle speed increases to a certain threshold, the engine then resumes operation. Although this sophisticated control strategy aims to save energy and reduce emissions, it also exacerbates the formation of engine carbon deposits to a certain extent. Especially when the vehicle starts from a stationary state and is driven only by the motor, the engine is in a non-operating state, which becomes the main reason for the silent accumulation of carbon deposits inside the engine.

[0004] Over time, these carbon deposits, like stubborn "uninvited guests", gradually settle inside the engine, especially tightly wrapping around the piston rings, making them lose their due flexibility and seriously interfering with the normal reciprocating motion of the pistons. More seriously, the current designs of most piston rings do not fully consider the need for carbon deposit cleaning and lack an effective self-cleaning mechanism, resulting in the increasingly serious carbon deposit problem, which has become a key factor restricting the further improvement of the performance of hybrid vehicle engines.

[0005] When the carbon accumulation reaches the critical point, the piston ring will bear unprecedented pressure and wear, and ultimately cannot escape the fate of damage. The damage of the piston ring is tantamount to opening the "Pandora's box" of the engine's sealing performance, directly leading to a decline in the engine's working efficiency and impaired running stability. Faced with this dilemma, car owners often have to choose to disassemble the engine and replace or repair the damaged piston ring. This process is not only time-consuming and laborious, but also the repair cost is high, undoubtedly bringing a heavy economic burden to car owners. Summary of the Invention

[0006] In view of the above problems, the present invention provides a combined piston ring for a new energy hybrid vehicle engine to solve the problem that the existing piston ring cannot solve carbon deposition.

[0007] The technical solution adopted by the present invention is: a combined piston ring for a new energy hybrid vehicle engine, including a main body mechanism, a connecting mechanism, a pressing mechanism and a cleaning mechanism; the main body mechanism includes a ring body and a connecting frame slidably connected to the two ring bodies; The pressing mechanism includes two connecting blocks, a top spring connecting the two connecting blocks and a fixing device for fixing the connecting blocks; The connecting mechanism includes a fixed connecting block I fixedly connected to one main body mechanism, a fixed connecting block II fixedly connected to the other main body mechanism, a connecting slide plate I slidably installed in the outer chute of the fixed connecting block I, a connecting slide plate II slidably installed in the inner chute of the fixed connecting block II, and two positioning blocks for fixing the connecting slide plate I and the connecting slide plate II; The cleaning mechanism includes an inner plate of the ring body in contact with the inner side surface of the main body mechanism, an ash discharge groove provided on the ring body, a scraping plate installed in a groove provided on the inner plate of the ring body, and a plurality of shaking reed pieces evenly distributed between the two ring bodies.

[0008] Preferably, the cleaning mechanism further includes a scraping plate column fixedly installed under the scraping plate and slidably installed in a sliding hole provided on the inner plate of the ring body, a connecting plate rotatably installed at the lower end of the scraping plate column through a shaft, a top rod slidably installed in a sliding hole provided on the sliding connecting frame, a roller frame fixedly installed at the other end of the top rod, and a roller rotatably installed on the roller frame.

[0009] Preferably, one side of the ash discharge groove close to the inner plate of the ring body is provided with an inclined surface for guiding the carbon deposition.

[0010] Preferably, the scraping plate is provided with a surface with an inclination degree gradually increasing from the inside to the outside, and the carbon deposition scraped by the scraping plate can be introduced into the ash discharge groove through this inclined surface.

[0011] Preferably, the roller is placed obliquely for rotating the roller during the movement of the piston.

[0012] Preferably, the outer wall of the ejector rod is wrapped with a spring, which connects the roller frame and the sliding connection frame, and the spring is used to push the roller frame outwards.

[0013] Preferably, the fixing device of the connecting mechanism includes two threaded ejector rods arranged in a connecting block, a power shaft slidably installed in a chute provided in the threaded ejector rod, a bevel gear I fixedly installed in the middle of the power shaft, a bevel gear II meshing with the bevel gear I, and a control rod fixedly installed with the bevel gear II.

[0014] Preferably, the thread directions of the two threaded ejector rods are opposite, and at the same time, the two threaded ejector rods are threadedly installed in holes provided in the connecting block for installing the threaded ejector rods.

[0015] Preferably, there are two ring bodies and a sliding connection frame in one main body mechanism. There are two main body mechanisms in one piston ring. The two main body mechanisms are connected together through a connecting mechanism, and the two main body mechanisms make the outer side surface of the main body mechanism closely contact with the cylinder wall of the engine cylinder through an extrusion mechanism.

[0016] Advantages of the present invention: 1. The scraper contacts the inner wall of the groove provided on the piston; during the operation of the engine, during the rotation of the scraper, the carbon deposits remaining on the inner wall of the groove provided on the piston are scraped off, and the carbon deposits enter the ash discharge groove along the inclined surface provided on the scraper. During the rotation of the connecting plate, it contacts the shaking reed, causing the shaking reed to be intermittently compressed and bounced, avoiding the accumulation of carbon deposits in the shaking reed into blocks, and effectively preventing the accumulation of carbon deposits in the gap between the piston ring and the piston, resulting in the jamming of the piston ring and affecting the operation of the piston. 2. The piston ring is composed of multiple parts. At the same time, the piston ring can be installed on the piston in a convenient manner, and can also be quickly removed from the piston, improving the efficiency during production and maintenance. Brief Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the first angle of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the second angle of the overall structure of the present invention.

[0019] Figure 3 It is a schematic diagram of the structure of the main body mechanism and the cleaning mechanism of the present invention.

[0020] Figure 4 It is a schematic diagram of the connection relationship between the inner plate of the ring body and the sliding connection frame of the present invention.

[0021] Figure 5 It is a schematic diagram of the structure of the cleaning mechanism and a part of the main body mechanism of the present invention.

[0022] Figure 6 This is a schematic structural diagram of the cleaning mechanism and the inner plate of the ring body of the present invention.

[0023] Figure 7 This is a schematic structural diagram of the cleaning mechanism of the present invention from a first angle.

[0024] Figure 8 This is a schematic structural diagram of the cleaning mechanism of the present invention from a second angle.

[0025] Figure 9 For the present invention Figure 8 Schematic cross-sectional structure diagram.

[0026] Figure 10 This is a schematic structural diagram of the extrusion mechanism of the present invention.

[0027] Figure 11 This is a schematic structural diagram of the fixing device of the extrusion mechanism of the present invention.

[0028] Figure 12 This is a schematic structural diagram of the connection mechanism of the present invention.

[0029] Figure 13 This is a schematic structural diagram of the internal parts of the connection mechanism of the present invention.

[0030] Figure 14 This is a schematic cross-sectional structure diagram of the connection mechanism of the present invention Reference numerals in the drawings: 1, ring body; 2, inner plate of the ring body; 3, sliding connection frame; 4, ash discharge groove; 5, scraping plate; 6, shaking reed; 7, scraping plate column; 8, connecting plate; 9, ejector rod; 10, roller frame; 11, roller; 12, connecting block; 13, top spring; 14, threaded ejector rod; 15, power shaft; 16, bevel gear I; 17, bevel gear II; 18, control rod; 19, fixed connection block I; 20, fixed connection block II; 21, connection slide plate I; 22, connection slide plate II; 23, positioning block. Detailed implementation manners

[0031] The technical solutions of the present invention will be further specifically described below through embodiments in conjunction with the drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific implementations disclosed below.

[0032] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed during use. It is only for the convenience of describing the present invention and is a simplified description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, in order to facilitate the description, spatial relative terms can be used in the text, for example, "below", "beneath", "under", "above", "over", etc., to describe the relationship of one element or feature relative to other elements or features as shown in the drawings. The spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation shown in the drawings. The device can have other orientations (rotated 90 degrees or in other orientations), and the spatial relative descriptive words used in the text can be interpreted accordingly. It should be noted that in this article, some connection methods, such as "fixed connection, fixed installation", refer to including but not limited to the fixation of two components, such as welding, screw and nut fixation, adhesion, riveting, interference fit, etc. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood through specific situations.

[0033] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0034] As shown in the embodiments Figures 1-14 a combined piston ring for a new energy hybrid vehicle engine includes a main body mechanism, a connecting mechanism, a pressing mechanism, and a cleaning mechanism.

[0035] As shown in the embodiments Figure 3 As shown, the main body mechanism includes: a ring body 1 and a sliding connection frame 3; a chute is provided on the end face of the ring body 1 for slidably mounting the sliding connection frame 3; both ends of the sliding connection frame 3 are slidably connected to two ring bodies 1 respectively, and at the same time, a plurality of sliding holes for slidably mounting the ejector rod 9 are provided on the sliding connection frame 3; there are two ring bodies 1 and one sliding connection frame 3 in one main body mechanism, two main body mechanisms are provided in one piston ring, and the two main body mechanisms are connected together through a connecting mechanism, and the outer side surfaces of the main body mechanisms are closely contacted with the cylinder wall of the engine cylinder through a pressing mechanism, so that the piston ring plays a sealing role.

[0036] As shown in the embodiments Figures 12-14As shown in the figure, the connecting mechanism includes: a fixed connecting block I 19, a fixed connecting block II 20, a connecting slide plate I 21, a connecting slide plate II 22, and a positioning block 23; the fixed connecting block I 19 is fixedly connected to one main body mechanism, the fixed connecting block II 20 is fixedly connected to another main body mechanism, both the fixed connecting block I 19 and the fixed connecting block II 20 are provided with two chutes, the connecting slide plate I 21 is slidably installed in the outer chute of the fixed connecting block I 19, and the connecting slide plate I 21 can slide into the outer chute of the fixed connecting block II 20, the connecting slide plate II 22 is slidably installed in the inner chute of the fixed connecting block II 20, and the connecting slide plate II 22 can slide into the inner chute of the fixed connecting block I 19, the walls of the connecting slide plate I 21 and the connecting slide plate II 22 are provided with card slots, there are two positioning blocks 23 which are respectively slidably installed in the chutes provided in the fixed connecting block I 19 and the fixed connecting block II 20, and one end of the positioning block 23 is provided with a spring for pushing the two positioning blocks 23 into the card slots of the connecting slide plate I 21 and the connecting slide plate II 22 respectively to fix the connecting slide plate I 21 and the connecting slide plate II 22.

[0037] As shown in the embodiment Figure 10 As shown in the figure, the extrusion mechanism includes: a connecting block 12, a top spring 13, and a fixing device for fixing the connecting block 12; there are two connecting blocks 12 which are respectively installed in two main body mechanisms, and the connecting block 12 is provided with a groove, the top spring 13 is installed in the groove, the top spring 13 connects the two connecting blocks 12 for pushing the two connecting blocks 12 to expand relatively, and then expands the two main body mechanisms outwards so that the two main body mechanisms are in close contact with the cylinder wall of the cylinder, and the connecting block 12 is provided with a hole for installing a threaded ejector rod 14.

[0038] As shown in the embodiment Figure 11 As shown in the figure, the fixing device includes: a threaded ejector rod 14, a power shaft 15, a bevel gear I 16, a bevel gear II 17, and a control rod 18; two threaded ejector rods 14 are provided in one connecting block 12, and the thread directions of the two threaded ejector rods 14 are opposite; one end of the threaded ejector rod 14 is provided with a chute, the power shaft 15 is slidably installed in the chute, the bevel gear I 16 is fixedly installed in the middle of the power shaft 15, the bevel gear I 16 meshes with the bevel gear II 17, the bevel gear II 17 is fixedly connected to the control rod 18, the control rod 18 is rotatably connected to the connecting block 12, and a groove for inserting an external wrench is provided on the outer end face of the control rod 18; each connecting block 12 is provided with a fixing device to fixedly connect the connecting block 12 and the main body mechanism together.

[0039] As shown in the embodiment Figures 3-9As shown in the figure, the cleaning mechanism includes: an inner ring plate 2, an ash discharge groove 4, a scraper 5, a shaking reed 6, a scraper column 7, a connecting plate 8, a push rod 9, a roller frame 10, and a roller 11; there are two inner ring plates 2, arranged in mirror symmetry. One inner ring plate 2 is in contact with the inner side surface of a main body mechanism, and at the same time, the inner ring plate 2 is slidably connected to both ring bodies 1 in the corresponding main body mechanism. Multiple sliding holes are provided on the inner ring plate 2, and grooves for placing the scraper 5 are provided at both ends of each sliding hole. The inner ring plate 2 is connected to the sliding connection frame 3 through a connecting rod; there are multiple ash discharge grooves 4, all of which are arranged on the ring body 1. An inclined surface is provided on one side of the ash discharge groove 4 close to the inner ring plate 2 for guiding the carbon deposits scraped off by the scraper 5 into the middle of the two ring bodies 1; there are multiple shaking reeds 6, evenly distributed in the middle of the two ring bodies 1 and below the ash discharge groove 4, for shaking the carbon deposits introduced by the ash discharge groove 4 to prevent the carbon deposits from accumulating into blocks and fixing the piston ring; the scraper 5 is installed in the groove provided on the inner ring plate 2. The scraper 5 is provided with a surface whose inclination gradually expands from the inside to the outside. Through this inclined surface, the carbon deposits scraped off by the scraper 5 can be guided into the ash discharge groove 4. A scraper column 7 is fixedly installed below the scraper 5, and the scraper column 7 is slidably installed in the sliding hole provided on the inner ring plate 2; a groove is provided at the lower end of the scraper column 7, and a connecting plate 8 is rotatably installed in the groove; the other end of the connecting plate 8 and the connecting plate 8 rotatably installed on another scraper column 7 are rotatably installed through a shaft; the contact position of the two connected connecting plates 8 is in contact with one end of the push rod 9. The push rod 9 is slidably installed in the sliding hole provided on the sliding connection frame 3. The other end of the push rod 9 is fixedly installed with a roller frame 10. A spring is wrapped around the outer wall of the push rod 9. The spring connects the roller frame 10 and the sliding connection frame 3, and the spring is used to push the roller frame 10 outward; a roller 11 is rotatably installed on the roller frame 10; a push rod 9, a roller frame 10, and a roller 11 form a component. Multiple such components are provided on each sliding connection frame 3. Similarly, two scrapers 5, two scraper columns 7, and two connecting plates 8 form a component. Multiple such components are provided on each inner ring plate 2; a spring is provided between two corresponding scraper columns 7 in the same component for connecting the two scraper columns 7. The spring is used to close the two separated scraper columns 7.

[0040] Working principle: The two main body mechanisms are sleeved in the grooves provided on the piston of the engine. A connecting block 12 is respectively installed on the two main body mechanisms. Then, an external wrench is used to rotate the control rod 18 to drive the bevel gear II 17 to rotate, and then drive the bevel gear I 16 to rotate, thereby driving the power shaft 15 to rotate, and then driving the two threaded push rods 14 to rotate, so that the two threaded push rods 14 push out the threaded push rods 14 to contact the ring body 1 in the main body mechanism, thereby fixing the connecting block 12 to the main body mechanism; Then, respectively push the connecting slide plate I 21 and the connecting slide plate II 22 to move, insert the connecting slide plate I 21 into the outer chute of the fixed connecting block II 20, and fix the connecting slide plate I 21 through the positioning block 23 installed in the fixed connecting block II 20. Then insert the connecting slide plate II 22 into the inner chute of the fixed connecting block I 19, and then fix the connecting slide plate II 22 through the positioning block 23 installed in the fixed connecting block I 19, thus connecting the two main body mechanisms together; Then install the piston of the present invention into the cylinder of the engine. At this time, the roller 11 contacts the cylinder wall of the cylinder, and the cylinder wall squeezes the roller 11 inward. The roller 11 drives the roller frame 10 and then drives the ejector rod 9 to move inward. Then the ejector rod 9 contacts the position where it is connected to the two connecting plates 8, and then pushes the two connecting plates 8 to move inward, thus driving the two connecting plates 8 to open, then pushing the two scraper columns 7 to separate, then stretching the spring connected to the two scraper columns 7, and then the two scraper columns 7 drive the two scrapers 5 to move outward, and then the scrapers 5 contact the inner wall of the groove provided on the piston. Such contact will firmly fix the piston ring to the piston, effectively preventing the piston ring from shaking on the piston. The piston ring shaking on the piston is likely to cause irregular friction between the piston ring and the cylinder wall of the cylinder, resulting in damage to the engine cylinder; Then, during the operation of the engine, the piston moves in the cylinder of the engine. At this time, the roller 11 moves on the cylinder wall of the cylinder. Because the roller 11 is in an inclined state, at this time, the roller 11 rotates and moves up and down relative to the cylinder wall of the cylinder, then drives the roller frame 10 to rotate, thereby driving the sliding connection frame 3 to rotate through the ejector rod 9. Then the sliding connection frame 3 drives the inner plate 2 of the ring body to rotate, and then drives the scraper 5 and the scraper column 7 to rotate. During the rotation of the scraper 5, the carbon deposits remaining on the inner wall of the groove provided on the piston are scraped off, and then the carbon deposits enter the ash discharge groove 4 along the inclined surface provided on the scraper 5, and then enter the middle of the two ring bodies 1. At the same time, during the rotation of the connecting plate 8, it contacts the shaking reed 6 and then makes the shaking reed 6 compress and bounce intermittently, thus preventing the carbon deposits in the shaking reed 6 from accumulating into blocks; Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined piston ring used in a new energy hybrid vehicle engine, comprising a main body mechanism, a connecting mechanism, an extrusion mechanism and a cleaning mechanism; characterized in that: The main body structure comprises a ring body (1) and a connecting frame (3) slidably connected to the two ring bodies (1); The extrusion mechanism comprises two connecting blocks (12), a top spring (13) connecting the two connecting blocks (12), and a fixing device for fixing the connecting blocks (12); The connecting mechanism comprises a fixed connecting block I (19) fixedly connected to one main body mechanism, a fixed connecting block II (20) fixedly connected to the other main body mechanism, a connecting slide plate I (21) slidably mounted in an outer slide groove of the fixed connecting block I (19), a connecting slide plate II (22) slidably mounted in an inner slide groove of the fixed connecting block II (20), and two positioning blocks (23) for fixing the connecting slide plate I (21) and the connecting slide plate II (22); The cleaning mechanism comprises an inner plate (2) of the ring body in contact with the inner side surface of the main body mechanism, an ash discharge groove (4) arranged on the ring body (1), a scraper (5) installed in a groove provided on the inner plate (2) of the ring body, and a plurality of shaking springs (6) evenly distributed between the two ring bodies (1).

2. The combined piston ring used in a new energy hybrid vehicle engine according to claim 1, characterized in that: The cleaning mechanism also includes a scraper column (7) fixedly mounted under the scraper (5) and slidably mounted in a sliding hole provided on the inner plate (2) of the ring body, a connecting plate (8) rotatably mounted in a groove provided at the lower end of the scraper column (7) via an axis, a top rod (9) slidably mounted in a sliding hole provided on a sliding connecting frame (3), a roller frame (10) fixedly mounted on the other end of the top rod (9), and a roller (11) rotatably mounted on the roller frame (10).

3. The combined piston ring used in a new energy hybrid vehicle engine according to claim 2, characterized in that: The ash discharge groove (4) is provided with an inclined surface on one side close to the inner plate (2) of the ring body for guiding carbon deposits.

4. The combined piston ring used in a new energy hybrid vehicle engine according to claim 3, characterized in that: The scraper (5) is provided with a surface whose inclination gradually increases from the inside to the outside, and the carbon deposits scraped off by the scraper (5) can be introduced into the ash discharge trough (4) through the inclined surface.

5. The combined piston ring used in a new energy hybrid vehicle engine according to claim 4, characterized in that: The roller (11) is placed at an angle, and is used to rotate the roller (11) during the movement of the piston.

6. The combined piston ring used in a new energy hybrid vehicle engine according to claim 5, characterized in that: The outer wall of the push rod (9) is wrapped with a spring, the spring connects the roller frame (10) and the sliding connection frame (3), and the spring is used to push the roller frame (10) outwards.

7. The combined piston ring used in a new energy hybrid vehicle engine according to claim 1, characterized in that: The fixing device of the connecting mechanism comprises two threaded push rods (14) provided in the connecting block (12), a power shaft (15) slidably mounted in a slide groove provided in the threaded push rod (14), a bevel gear I (16) fixedly mounted in the middle of the power shaft (15), a bevel gear II (17) meshing with the bevel gear I (16), and a control rod (18) fixedly mounted on the bevel gear II (17).

8. The combined piston ring used in a new energy hybrid vehicle engine according to claim 7, characterized in that: The thread directions of the two threaded push rods (14) are opposite to each other, and the two threaded push rods (14) are threadedly mounted in holes provided in the connection block (12) for mounting the threaded push rods (14).

9. The combined piston ring used in a new energy hybrid vehicle engine according to claim 1, characterized in that: The main body mechanism comprises two ring bodies (1) and a sliding connection frame (3), and the piston ring is provided with two main body mechanisms, the two main body mechanisms are connected together via a connection mechanism, and the two main body mechanisms are pressed together so that the outer side surfaces of the main body mechanisms are in close contact with the cylinder wall of the engine cylinder.

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