Combined zirconia ceramic cylinder liner

Abstract

The utility model relates to ceramic cylinder liner technical field discloses a combined zirconium oxide ceramic cylinder liner, including metal shell, the inside screw thread connection of metal shell has the ceramic cover, the outer wall of ceramic cover is opened has the square hole, the inside sliding connection of metal shell has the sliding board, the outer wall fixed connection of sliding board has the limit board no.

Description

Technical Field

[0001] This utility model relates to the field of ceramic cylinder liner technology, and in particular to a composite zirconia ceramic cylinder liner. Background Technology

[0002] Cylinder liners are core components of internal combustion engines, mud pumps, and other equipment. They are typically cylindrical structures, fitted into the engine block bore, and together with the piston and cylinder head, form the working space. They also guide the reciprocating motion of the piston and transfer heat. Composite zirconia ceramic cylinder liners are components that improve upon the wear resistance of traditional cylinder liners. They are composed of an inner liner made of ultra-wear-resistant and high-temperature-resistant zirconia ceramic, combined with a high-strength metal outer liner, thus possessing both the corrosion resistance of ceramics and the structural strength of metal.

[0003] Existing ceramic cylinder liners mostly adopt a fixed structure of centrifugal casting or hot assembly of ceramic inner sleeve and metal outer sleeve. After installation, the two form a whole. However, due to the characteristic of ceramic being prone to cracking, cylinder liner damage often occurs in the inner sleeve. However, it is difficult to replace the ceramic part of the fixed structure separately, and the whole structure needs to be scrapped and replaced. This results in long maintenance time, large production downtime losses, and increased spare parts costs and consumable investment. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a combined zirconia ceramic cylinder liner, which aims to improve the problem that it is difficult to replace the ceramic part separately and that the whole cylinder needs to be scrapped and replaced.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a combined zirconia ceramic cylinder liner, comprising a metal shell, a ceramic sleeve threadedly connected to the inside of the metal shell, a square hole on the outer wall of the ceramic sleeve, a sliding plate slidably connected to the inside of the metal shell, a limiting plate fixedly connected to the outer wall of the sliding plate, a sliding block slidably connected to the outer wall of the limiting plate, the outer wall of the sliding block slidably connected to the inside of the metal shell, a fixing block fixedly connected to the lower surface of the sliding block, the outer wall of the fixing block slidably connected to the inner wall of the square hole, and a pulling component provided on the outer wall of the sliding plate.

[0006] The above technical solution involves rotating the ceramic sleeve via a threaded metal shell, which in turn pushes a sliding plate to move a sliding block via a limiting plate. This movement causes a fixing block to enter the inner wall of the square hole, securing the replaced ceramic sleeve. This allows for quick disassembly and replacement of damaged ceramic sleeves, reducing maintenance time, minimizing downtime and production losses, ensuring production continuity, reducing spare parts investment, and allowing for the reuse of the metal structure without requiring complete replacement. This controls material costs and ultimately improves equipment utilization.

[0007] Preferably, the pulling assembly includes a support column, the outer wall of which is fixedly connected to the outer wall of the sliding plate, and a pull ring is rotatably connected inside the support column.

[0008] Preferably, an outer ring is fixedly connected to the outer wall of the metal shell, and a limit plate is fixedly connected to the outer wall of the outer ring.

[0009] Preferably, the outer wall of the limiting plate two is slidably connected to an outer ring two, and the inner part of the outer ring two is fixedly connected to the outer wall of the metal shell.

[0010] Preferably, the outer ring two is internally slidably connected to a T-shaped shaft, and the outer wall of the T-shaped shaft is slidably connected to the inside of the outer ring one.

[0011] Preferably, one end of a spring is fixedly connected to the outer wall of the T-shaped shaft, and the other end of the spring is fixedly connected to the inside of the outer ring.

[0012] Preferably, the outer ring is internally slidably connected to a sliding rod, and the outer wall of the sliding rod abuts against the outer wall of the T-shaped shaft.

[0013] Preferably, a limiting piece is fixedly connected to the outer wall of the sliding rod, the outer wall of the limiting piece is slidably connected to the inside of the outer ring one, one end of the second spring is fixedly connected to the outer wall of the limiting piece, and the other end of the second spring is fixedly connected to the inside of the outer ring one.

[0014] This utility model has the following beneficial effects: 1. In this utility model, the ceramic sleeve, sliding plate, limiting plate and fixing block cooperate with each other to achieve the effect of quick disassembly and replacement of damaged ceramic sleeve. This helps to shorten maintenance time, reduce production losses caused by downtime, ensure production continuity, reduce spare parts investment, and the metal structure can be reused without overall replacement, thus controlling the cost of consumables and improving equipment utilization.

[0015] 2. In this utility model, the mutual cooperation between the outer ring one, the outer ring two, the T-shaped shaft and the sliding rod achieves the effect of quick installation and disassembly of the cylinder liner, which is conducive to quickly switching between cylinder liners of different specifications and performance, adapting to different media, pressure and temperature conditions, and improving the versatility of the equipment. Attached Figure Description

[0016] Figure 1 This is a perspective view of a combined zirconia ceramic cylinder liner proposed in this utility model; Figure 2 This is a partial cross-sectional view of the metal shell structure of a combined zirconia ceramic cylinder liner proposed in this utility model. Figure 3This is a partial cross-sectional view of the ceramic sleeve of a combined zirconia ceramic cylinder liner proposed in this utility model. Figure 4 This is a partial structural diagram of the sliding block of a combined zirconia ceramic cylinder liner proposed in this utility model; Figure 5 This is a partial cross-sectional view of the outer ring of a combined zirconia ceramic cylinder liner proposed in this utility model. Figure 6 This is a partial structural diagram of the sliding rod of a combined zirconia ceramic cylinder liner proposed in this utility model.

[0017] Legend: 1. Metal shell; 2. Ceramic sleeve; 3. Sliding plate; 4. Limiting plate one; 5. Sliding block; 6. Fixing block; 7. Support column; 8. Pull ring; 9. Square hole; 10. External ring one; 11. Limiting plate two; 12. External ring two; 13. T-shaped shaft; 14. Spring one; 15. Sliding rod; 16. Limiting piece; 17. Spring two. Detailed Implementation

[0018] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] Example 1: Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 An embodiment of this utility model is provided: a combined zirconia ceramic cylinder liner, including a metal shell 1, a ceramic sleeve 2 threadedly connected to the inside of the metal shell 1, a square hole 9 on the outer wall of the ceramic sleeve 2, a sliding plate 3 slidably connected to the inside of the metal shell 1, a limiting plate 4 fixedly connected to the outer wall of the sliding plate 3, a sliding block 5 slidably connected to the outer wall of the limiting plate 4, the outer wall of the sliding block 5 slidably connected to the inside of the metal shell 1, a fixing block 6 fixedly connected to the lower surface of the sliding block 5, the outer wall of the fixing block 6 slidably connected to the inner wall of the square hole 9, and a pulling component provided on the outer wall of the sliding plate 3; Specifically, the metal shell 1 supports the rotation of the ceramic sleeve 2 and protects the internal ceramic sleeve 2. The ceramic sleeve 2 is made of zirconia ceramic, which has wear-resistant and corrosion-resistant properties and is the core working component of the cylinder liner. The metal shell 1 supports the sliding plate 3 for sliding. The limiting plate 4 slides inside the sliding block 5. The outer wall of the limiting plate 4 is inclined and will squeeze the sliding block 5 during sliding. The limiting plate 4 restricts the sliding direction of the sliding block 5, so that the sliding block 5 moves vertically. The movement of the sliding block 5 causes the fixing block 6 to enter the inner wall of the square hole 9. The square hole 9 supports the sliding of the fixing block 6. The fixing block 6 and the square hole 9 cooperate to fix the ceramic sleeve 2 inside the metal shell 1 to prevent the ceramic sleeve 2 from rotating, so as to realize the limiting and fixing connection of the ceramic sleeve 2, and also to quickly disassemble the ceramic sleeve 2.

[0020] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The pulling component includes a support column 7, the outer wall of which is fixedly connected to the outer wall of the sliding plate 3, and a pull ring 8 is rotatably connected inside the support column 7; Specifically, the support column 7 supports the rotation of the pull ring 8. When the fixing block 6 fixes the ceramic sleeve 2, the pull ring 8 is perpendicular to the outer wall of the sliding plate 3 to ensure the stability of the cylinder sleeve connection. The pull ring 8 is used to pull the sliding plate 3 to move, and the cylinder sleeve's engagement state facilitates the installation or removal of the ceramic cylinder sleeve.

[0021] Example 2: Reference Figure 1 , Figure 5 and Figure 6 The outer wall of the metal shell 1 is fixedly connected to an outer ring 10. The outer wall of the outer ring 10 is fixedly connected to a limiting plate 11. The outer wall of the limiting plate 11 is slidably connected to an outer ring 12. The inner part of the outer ring 12 is fixedly connected to the outer wall of the metal shell 1. The inner part of the outer ring 12 is slidably connected to a T-shaped shaft 13. The outer wall of the T-shaped shaft 13 is slidably connected to the inner part of the outer ring 10. One end of a spring 14 is fixedly connected to the outer wall of the T-shaped shaft 13. The other end of the spring 14 is fixedly connected to the inner part of the outer ring 12. The inner part of the outer ring 10 is slidably connected to a sliding rod 15. The outer wall of the sliding rod 15 abuts against the outer wall of the T-shaped shaft 13. The outer wall of the sliding rod 15 is fixedly connected to a limiting piece 16. The outer wall of the limiting piece 16 is slidably connected to the inner part of the outer ring 10. One end of a spring 17 is fixedly connected to the outer wall of the limiting piece 16. The other end of the spring 17 is fixedly connected to the inner part of the outer ring 10. Specifically, the metal shell 1 is used to fix the outer ring 10 and the outer ring 12, facilitating the fixation of the metal shell 1. The outer ring 10 supports and fixes the limiting plate 11, while the outer ring 12 supports the sliding of the limiting plate 11. The limiting plate 11 connects the outer ring 10 and the outer ring 12 through the groove inside the outer ring 12. The outer ring 10 and the outer ring 12 support the sliding of the T-shaped shaft 13, allowing the T-shaped shaft 13 to enter or disengage from the outer ring 10, thus achieving the function of external sliding. The detachable connection between the first connecting ring 10 and the second connecting ring 12 is achieved by the first spring 14 providing elastic force to maintain the connection of the T-shaped shaft 13. The first connecting ring 10 supports the sliding rod 15, and the sliding rod 15 pushes the T-shaped shaft 13, causing the T-shaped shaft 13 to disengage from the inner connection of the first connecting ring 10 and unlock the connection. The sliding range of the sliding rod 15 is limited by the limiting piece 16, and the second spring 17 provides elastic restoring force to the sliding rod 15, so that the sliding rod 15 maintains its initial position when no external force is applied, facilitating the next locking.

[0022] Working principle: When the cylinder liner is needed, push the outer ring 10 to slide inside the outer ring 12 through the limiting plate 11 for a mating connection. After the outer ring 10 and outer ring 12 are connected, the T-shaped shaft 13 slides into the outer ring 10 through the elastic force of the spring 14 for fixation, preventing the outer ring 10 from moving and achieving quick fixation of the cylinder liner. Press the sliding rod 15 to push the T-shaped shaft 13 inside the outer ring 10, so that when the T-shaped shaft 13 moves, it will disengage from the outer ring 10, releasing the fixation. Lifting the metal shell 1 will disconnect the cylinder liner. Releasing the pressed sliding rod 15 will push the limiting plate 16 through the elastic force of the spring 17, so that when the limiting plate 16 moves, it will drive the sliding rod 15 to reset, achieving quick installation and disassembly of the cylinder liner. Different specifications and performance of the complete set of cylinder liners can be quickly switched to adapt to different media, pressure, and temperature conditions, thereby improving the versatility of the equipment. When ceramic sleeve 2 needs to be replaced, pulling the pull ring 8 moves the sliding plate 3 via the support column 7. As the sliding plate 3 moves, the sliding block 5 connected to it rises via the limit plate 4. When the sliding block 5 rises, it causes the fixing block 6 to slide away from the inner wall of the square hole 9, loosening the fixation of the ceramic sleeve 2. Twisting the ceramic sleeve 2 disengages it from the threaded metal shell 1, allowing the ceramic sleeve 2 to be replaced. Twisting the ceramic sleeve 2 rotates the threaded metal shell 1, pushing the sliding plate 3 to move the sliding block 5 via the limit plate 4. As the sliding block 5 moves, it causes the fixing block 6 to enter the inner wall of the square hole 9, fixing the replaced ceramic sleeve 2. This allows for quick disassembly and replacement of the damaged ceramic sleeve 2, shortening maintenance time, reducing production losses caused by downtime, ensuring production continuity, reducing spare parts investment, and allowing the metal structure to be reused without overall replacement, thus controlling consumable costs and improving equipment utilization. In actual use, this cylinder liner not only allows for quick installation and disassembly, but also enables rapid switching between different specifications and performance of the complete set of cylinder liners to adapt to different working conditions, thereby improving the versatility of the equipment. It also allows for quick disassembly and replacement of damaged ceramic liners, shortening maintenance time, reducing production losses caused by downtime, ensuring production continuity, reducing spare parts investment, and allowing the metal structure to be reused without the need for complete replacement, thus improving equipment utilization.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A combined zirconia ceramic cylinder liner comprising a metal shell (1), characterized in that: The metal shell (1) is internally threaded with a ceramic sleeve (2), and the outer wall of the ceramic sleeve (2) is provided with a square hole (9). The metal shell (1) is internally slidably connected with a sliding plate (3), and the outer wall of the sliding plate (3) is fixedly connected with a limiting plate (4). The outer wall of the limiting plate (4) is slidably connected with a sliding block (5), and the outer wall of the sliding block (5) is slidably connected to the inside of the metal shell (1). The lower surface of the sliding block (5) is fixedly connected with a fixing block (6), and the outer wall of the fixing block (6) is slidably connected to the inner wall of the square hole (9). The outer wall of the sliding plate (3) is provided with a pulling component.

2. The combined zirconia ceramic cylinder liner according to claim 1, characterized by: The pulling assembly includes a support column (7), the outer wall of which is fixedly connected to the outer wall of the sliding plate (3), and a pull ring (8) is rotatably connected inside the support column (7).

3. The combined zirconia ceramic cylinder liner according to claim 1, characterized in that: The outer wall of the metal shell (1) is fixedly connected to an outer ring one (10), and the outer wall of the outer ring one (10) is fixedly connected to a limit plate two (11).

4. The combined zirconia ceramic cylinder liner according to claim 3, characterized by: The outer wall of the limiting plate 2 (11) is slidably connected to an outer ring 2 (12), and the inner part of the outer ring 2 (12) is fixedly connected to the outer wall of the metal shell (1).

5. A combined zirconia ceramic cylinder liner according to claim 4, characterized in that: The inner side of the second outer ring (12) is slidably connected to a T-shaped shaft (13), and the outer wall of the T-shaped shaft (13) is slidably connected to the inner side of the first outer ring (10).

6. A combined zirconia ceramic cylinder liner according to claim 5, characterized in that: One end of spring one (14) is fixedly connected to the outer wall of the T-shaped shaft (13), and the other end of spring one (14) is fixedly connected to the inside of outer ring two (12).

7. The combined zirconia ceramic cylinder liner according to claim 3, characterized by: The outer ring (10) is internally slidably connected to a sliding rod (15), and the outer wall of the sliding rod (15) abuts against the outer wall of the T-shaped shaft (13).

8. A combined zirconia ceramic cylinder liner according to claim 7, characterized in that: The outer wall of the sliding rod (15) is fixedly connected to a limiting piece (16), the outer wall of the limiting piece (16) is slidably connected to the inside of the outer ring (10), one end of the second spring (17) is fixedly connected to the outer wall of the limiting piece (16), and the other end of the second spring (17) is fixedly connected to the inside of the outer ring (10).

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