Engine cylinder sleeve sealing device

Abstract

The engine cylinder sleeve sealing device comprises a sealing ring installed on the upper end face of a cylinder body and the upper end face of a cylinder sleeve, the sealing ring comprises a lower annular plate and an upper annular plate, the lower annular plate is arranged below the upper annular plate, and a first annular clamping groove and a second annular clamping groove are formed in the positions where the cylinder body and the cylinder sleeve are attached to each other correspondingly; a first annular groove and a second annular groove are formed in the inner wall of the first annular clamping groove and the inner wall of the second annular clamping groove correspondingly, and the inner end and the outer end of the lower annular plate are installed in the first annular groove and the second annular groove in a clamped mode correspondingly. According to the sealing device, double sealing can be conducted on gaps among the cylinder body, the cylinder sleeve and the engine body, the situation that the sealing ring cannot achieve the sealing effect due to the fact that the sealing ring is affected by engine vibration and high temperature to be abraded and damaged is avoided, the sealing effect among the cylinder body, the cylinder sleeve and the engine body is improved, and the service life of the engine is prolonged. And the use of the engine is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of engine cylinder liner sealing devices, in particular to an engine cylinder liner sealing device. Background Art

[0002] The engine cylinder liner is the central working part of the engine or pump. It is nested in the cylinder body and together with the piston and cylinder head, it forms the vital combustion chamber space. The inner diameter of the cylinder liner matches the bore diameter of the cylinder body and is usually made of cast iron to meet the wear resistance requirements in high-temperature and high-pressure environments. It can withstand the direct action of high-temperature and high-pressure gas and the friction of the reciprocating motion of the piston. At the same time, it transfers heat to the cooling water to maintain a suitable operating temperature, ensuring stable operation and efficient performance of the engine.

[0003] However, most of the existing engine cylinder liner seals are provided with a sealing ring on its end face, and the sealing ring is used to cover the connection between the cylinder liner and the cylinder body to seal the gap between them, and then the sealing ring is pressed against the engine body through the cylinder liner and the cylinder liner, closing the gap between the cylinder body, the cylinder liner and the engine body, thereby achieving the sealing effect between the engine cylinder liner and the cylinder body, and the engine body. However, since the engine generates vibrations during operation, the sealing ring will be affected by the vibration and wear, and the wear of the sealing ring will be aggravated by the influence of the high temperature of the engine, causing the outer layer of the sealing ring to peel, reducing the sealing effect of the sealing ring, and causing leakage not only between the cylinder liner, the cylinder body and the engine body, but also between the cylinder liner and the cylinder body, affecting the use of the engine. Therefore, those skilled in the art provide an engine cylinder liner sealing device to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the present utility model is to provide an engine cylinder liner sealing device to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] The cam is secured to the cylinder block and the cylinder liner by a plurality of locking cams, the plurality of locking cams being secured to the cylinder block and the cylinder liner by a plurality of locking cams.

[0007] Preferably, the first annular groove and the second annular groove are spliced ​​to form a clamping groove, the annular support plate passes through the clamping groove and extends to the top of the cylinder body and the cylinder sleeve, and the inner and outer sides of the annular support plate are respectively attached to the inner walls of the first annular groove and the second annular groove.

[0008] Preferably, the end surface area of ​​the lower annular plate is larger than the opening area of ​​the clamping groove.

[0009] Preferably, the first annular groove and the second annular groove are spliced ​​together to form a mounting groove, and the lower annular plate is mounted on the inner cavity wall of the cylinder body and the outer wall of the cylinder sleeve through the mounting groove.

[0010] Preferably, a hollow groove is provided inside the upper annular plate, and the annular end plate is installed inside the hollow groove.

[0011] Preferably, a through groove is provided at a position on the lower end surface of the upper annular plate corresponding to the position of the annular support plate, and the annular support plate passes through the through groove and is inserted into the interior of the empty groove.

[0012] Preferably, the end surface area of ​​the annular end plate is larger than the opening area of ​​the through groove.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] By arranging sealing rings at the ends of the cylinder block and the cylinder liner, and splitting the sealing ring into a lower annular plate and an upper annular plate, when in use, the lower annular plate can be pressed into the installation groove composed of the first annular groove and the second annular groove, so that the lower annular plate is engaged with the inner cavity wall of the cylinder block and the outer wall of the cylinder liner, closing the gap between the cylinder liner and the cylinder block, and then the upper annular plate is sleeved on the outside of the annular end plate at one end of the annular support plate above the cylinder block and the cylinder liner to complete the assembly of the sealing ring, and finally, the cylinder block and the cylinder liner are installed on the engine body, so that the cylinder block and the cylinder liner press the upper annular plate against the side wall of the engine body, and the upper annular plate presses the annular end plate against the ends of the cylinder block and the cylinder liner to deform, so that the upper annular plate The annular plate is tightly attached to the side wall of the engine body under the elastic force of the annular end plate itself, and the gaps between the engine body, cylinder block and cylinder liner are sealed by the upper annular plate, annular end plate and lower annular plate, thereby completing the sealing between the engine body, cylinder block and cylinder liner. The gaps between the cylinder block, cylinder liner and engine body can be double-sealed by the upper annular plate, annular end plate and lower annular plate, preventing the sealing ring from being worn or damaged by the vibration of the engine and high temperature, resulting in its inability to seal between the cylinder block, cylinder liner and engine body. The sealing effect between the cylinder block, cylinder liner and engine body is improved, and the use of the engine, cylinder block and cylinder liner is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the assembly of a sealing ring according to an embodiment of the present utility model;

[0016] Figure 2 1 is a cross-sectional view of a cylinder block and a cylinder liner according to an embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the disassembly of the sealing ring, cylinder body and cylinder liner according to one embodiment of the present utility model;

[0018] Figure 4 Schematic diagram of the disassembly of the lower annular plate and the upper annular plate according to one embodiment of the present utility model;

[0019] Figure 5 is a cross-sectional view of a sealing ring according to an embodiment of the present utility model;

[0020] Figure 6 for Figure 2 Enlarged view of part A in .

[0021] In the figure: 1, cylinder body; 101, first annular groove; 102, first annular groove; 2, cylinder liner; 201, second annular groove; 202, second annular groove; 3, sealing ring; 31, lower annular plate; 311, annular support plate; 312, annular end plate; 32, upper annular plate; 321, empty groove; 322, through groove. DETAILED DESCRIPTION

[0022] In the description of the present invention, it should be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more. In addition, the term "including" and any variations thereof are intended to cover non-exclusive inclusions.

[0023] Combine Figures 1-6 As shown, the sealing ring 3 includes a lower annular plate 31 and an upper annular plate 32, wherein the lower annular plate 31 is arranged below the upper annular plate 32, and the cylinder body 1 and the cylinder liner 2 are respectively provided with a first annular groove 101 and a second annular groove 201 at the positions where they are in contact with each other, and the inner walls of the first annular groove 101 and the second annular groove 201 are respectively provided with a first annular groove 102 and a second annular groove 202, and the inner and outer ends of the lower annular plate 31 are respectively engaged and installed in the first annular groove 102 and the second annular groove 202, and the end surface of the lower annular plate 31 is located in the first annular groove 101 and the second annular groove 201. An annular support plate 311 is provided at a position between the annular grooves 201, and one end of the annular support plate 311 away from the lower annular plate 31 extends above the first annular groove 101 and the second annular groove 201, and one end of the annular support plate 311 located above the first annular groove 101 and the second annular groove 201 is inserted into the interior of the upper annular plate 32, and an annular end plate 312 is provided at one end of the annular support plate 311 inserted into the interior of the upper annular plate 32. The upper annular plate 32 surrounds the outside of the annular end plate 312 and is tightly attached to the upper end surfaces of the cylinder body 1 and the cylinder liner 2, covering the position where the cylinder body 1 and the cylinder liner 2 are in contact with each other.

[0024] In one embodiment, when assembling the sealing ring 3, the annular end plate 312 on the annular support plate 311 can be pressed into the empty groove 321 from the through groove 322, so that the upper annular plate 32 is sleeved on the outside of the annular end plate 312 and connected to the lower annular plate 31 to form a whole, and the assembly of the sealing ring 3 can be completed. The structure is simple and the disassembly is convenient, which is conducive to the subsequent maintenance work.

[0025] In one embodiment, when the sealing ring 3 is partially damaged, the annular end plate 312 can be directly removed from the empty groove 321 to complete the splitting of the upper annular plate 32 and the lower annular plate 31. The sealing ring 3 can be split into the upper annular plate 32 and the lower annular plate 31, and the damaged upper annular plate 32 or the lower annular plate 31 can be replaced separately, avoiding the need to replace the entire sealing ring 3 to ensure the use of the cylinder body 1 and the cylinder liner 2, reducing the waste of resources, and having strong practicality.

[0026] When the sealing ring 3 is installed, the lower annular plate 31 can be pressed into the installation groove composed of the first annular groove 102 and the second annular groove 202 from the clamping groove between the first annular groove 101 and the second annular groove 201, so that the lower annular plate 31 is engaged with the inner cavity wall of the cylinder body 1 and the outer wall of the cylinder liner 2, closing the gap between the cylinder liner 2 and the cylinder body 1. At the same time, the upper annular plate 32 connected to the lower annular plate 31 through the annular end plate 312 and the annular support plate 311 is fitted on the end surface of the cylinder body 1 and the cylinder liner 2 to cover the connection between the cylinder body 1 and the cylinder liner 2, thereby performing a double seal on the gap between the cylinder body 1 and the cylinder liner 2, avoiding the situation where the sealing ring 3 is unable to seal the gap between the cylinder body 1 and the cylinder liner 2 due to wear and damage caused by engine vibration and high temperature, thereby improving the sealing effect between the cylinder body 1 and the cylinder liner 2 and ensuring the use of the cylinder body 1 and the cylinder liner 2.

[0027] In one embodiment, when the cylinder block 1 and the cylinder liner 2 are installed on the engine for use, the cylinder block 1 and the cylinder liner 2 can press the upper annular plate 32 against the side wall of the engine body, and then the upper annular plate 32 that has been squeezed presses the annular end plate 312 against the ends of the cylinder block 1 and the cylinder liner 2, so that the annular end plate 312 is deformed by the force, and then the upper annular plate 32 is tightly attached to the side wall of the engine body under the elastic force of the deformed annular end plate 312 itself, so that the upper annular plate 32 and the annular end plate 312 are pressed tightly in sequence. On the side wall of the engine body, the annular end plate 312 is tightly attached to the side wall of the engine body and the ends of the cylinder block 1 and the cylinder liner 2 after the upper annular plate 32 is damaged, thereby sealing the gap between the engine body and the cylinder block 1 and the cylinder liner 2, thereby achieving double sealing of the gap between the engine body and the cylinder block 1 and the cylinder liner 2, avoiding leakage between the engine body and the cylinder block 1 and the cylinder liner 2 due to damage to the upper annular plate 32, improving the sealing effect between the engine body, the cylinder block 1 and the cylinder liner 2, and ensuring the use of the engine.

[0028] When the cylinder 1 and the cylinder liner 2 are in the state of being pressed together, the annular plate 31 of the cylinder 1 is pressed against the annular plate 311 of the cylinder 1 and the cylinder liner 2, thereby sealing the gap between the cylinder liner 2 and the cylinder 1. Then, the annular support plate 311 of the cylinder 1 and the cylinder liner 2 is pressed against the annular end plate 312 of the cylinder 1 and the cylinder liner 2, thereby sealing the gap between the cylinder 1 and the cylinder 1. When the cam 312 is in the closed position, the sealing surface 314 of the engine block 1 and the cylinder liner 2 is tightened, and the sealing ring 312 is tightened and locked.

[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An engine cylinder liner sealing device, comprising: A sealing ring (3) installed on the upper end surfaces of a cylinder body (1) and a cylinder liner (2), characterized in that the sealing ring (3) comprises a lower annular plate (31) and an upper annular plate (32), wherein the lower annular plate (31) is arranged below the upper annular plate (32), and a first annular groove (101) and a second annular groove (201) are respectively provided at positions where the cylinder body (1) and the cylinder liner (2) are in contact with each other, the inner walls of the first annular groove (101) and the second annular groove (201) are respectively provided with a first annular groove (102) and a second annular groove (202), the inner and outer ends of the lower annular plate (31) are respectively engaged and installed in the interior of the first annular groove (102) and the second annular groove (202), and the end surface of the lower annular plate (31) is located at the first annular groove (102). An annular support plate (311) is provided at a position between the first annular groove (101) and the second annular groove (201), and one end of the annular support plate (311) away from the lower annular plate (31) extends to above the first annular groove (101) and the second annular groove (201), and one end of the annular support plate (311) located above the first annular groove (101) and the second annular groove (201) is plugged into the interior of the upper annular plate (32), and an annular end plate (312) is provided at one end of the annular support plate (311) plugged into the interior of the upper annular plate (32), and the upper annular plate (32) surrounds the outside of the annular end plate (312) and is tightly attached to the upper end surfaces of the cylinder body (1) and the cylinder liner (2), covering the position where the cylinder body (1) and the cylinder liner (2) are in contact with each other.

2. The engine cylinder liner sealing device according to claim 1, characterized in that: The first annular clamping groove (101) and the second annular clamping groove (201) are spliced ​​together to form a clamping groove, the annular support plate (311) passes through the clamping groove and extends to above the cylinder body (1) and the cylinder sleeve (2), and the inner and outer sides of the annular support plate (311) are respectively attached to the inner walls of the first annular clamping groove (101) and the second annular clamping groove (201).

3. The engine cylinder liner sealing device according to claim 2, characterized in that: The end surface area of ​​the lower annular plate (31) is larger than the opening area of ​​the clamping groove.

4. The engine cylinder liner sealing device according to claim 1, characterized in that: The first annular groove (102) and the second annular groove (202) are spliced ​​together to form a mounting groove, and the lower annular plate (31) is mounted on the inner cavity wall of the cylinder body (1) and the outer wall of the cylinder sleeve (2) through the mounting groove.

5. The engine cylinder liner sealing device according to claim 1, characterized in that: An empty groove (321) is provided inside the upper annular plate (32), and the annular end plate (312) is installed inside the empty groove (321).

6. The engine cylinder liner sealing device according to claim 5, characterized in that: A through groove (322) is provided at a position on the lower end surface of the upper annular plate (32) corresponding to the annular support plate (311), and the annular support plate (311) passes through the through groove (322) and is inserted into the interior of the empty groove (321).

7. The engine cylinder liner sealing device according to claim 6, characterized in that: The end surface area of ​​the annular end plate (312) is larger than the opening area of ​​the through groove (322).

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