A piston dismounting aid

Abstract

This application provides a piston disassembly auxiliary device, comprising: a baffle with a first through-hole structure; the baffle is used to block a diesel engine cylinder liner; the first through-hole structure is used to lift the piston from the diesel engine cylinder liner; and multiple support tubes disposed on the baffle, the support tubes being sleeved on a corresponding one of a plurality of cylinder head studs, the plurality of cylinder head studs being disposed adjacent to the diesel engine cylinder liner. Because the multiple support tubes sleeve the multiple cylinder head studs, the baffle can descend along the cylinder head studs onto the diesel engine cylinder liner and block it. Based on this, the piston is lifted from the diesel engine cylinder liner through the first through-hole structure. At this time, because the baffle blocks the diesel engine cylinder liner, the diesel engine cylinder liner will not move along with the piston during lifting, thus making piston disassembly and inspection more convenient and safer.

Description

Technical Field

[0001] This application relates to the field of marine low-speed diesel engine technology, specifically to a piston disassembly auxiliary device. Background Technology

[0002] In related technologies, the piston, as a crucial component and core part of the diesel engine, plays a vital role in converting thermal energy into mechanical energy. Due to the piston's prolonged operation under high temperature and pressure, a significant amount of carbon deposits accumulate on its surface, necessitating periodic engine shutdowns and cylinder removal for inspection and removal. However, during piston removal and inspection, carbon deposits may remain on the upper edge of the cylinder liner and the piston head. As the piston rises, these residual carbon deposits gradually accumulate, potentially causing the piston to jam against the cylinder liner. Further lifting may then cause the cylinder liner to move along with the piston, creating inconvenience and safety hazards during piston removal and inspection. Utility Model Content

[0003] To address the shortcomings of existing technologies, this application proposes a piston disassembly auxiliary device designed to limit the accompanying movement of the cylinder liner during the piston removal process.

[0004] To achieve the above objectives, this application provides a piston disassembly auxiliary device, comprising:

[0005] A baffle, including a first through-hole structure; the baffle is used to block the diesel engine cylinder liner; the first through-hole structure is used to lift the piston in the diesel engine cylinder liner;

[0006] Multiple support tubes are provided on the baffle. The support tubes are used to be sleeved on one of the multiple cylinder head studs. The multiple cylinder head studs are arranged adjacent to the diesel engine cylinder liner.

[0007] In one embodiment, the baffle further includes a plurality of second through-hole structures, and the plurality of support tubes are respectively disposed on the plurality of second through-hole structures, the second through-hole structures being used to pass through the corresponding cylinder head studs.

[0008] In one embodiment, the baffle includes:

[0009] The hoisting structure is installed on one side of the baffle and is located on the same side of the baffle as the plurality of the support pipes.

[0010] In one embodiment, the support tube is movably disposed on the second through hole structure, and the support tube is provided with a second thread that matches the first thread on the cylinder head stud. The support tube is rotated to fit the corresponding cylinder head stud.

[0011] In one embodiment, the baffle is polygonal, and the multiple sides of the baffle match the cylinder head studs that are not fitted by the multiple support tubes among the multiple cylinder head studs adjacent to the diesel engine cylinder liner.

[0012] In one embodiment, the device further includes:

[0013] Multiple sleeves are provided one-to-one on multiple sides of the baffle, and the sleeves are used to fit the cylinder head studs that match the sides.

[0014] In one embodiment, the hoisting structure includes:

[0015] A lifting lug plate is disposed perpendicularly on the side of the baffle plate, and the lifting lug plate is provided with a lifting hole structure.

[0016] In one embodiment, the plurality of support tubes are symmetrically arranged based on a diagonal of the baffle.

[0017] In one embodiment, multiple hoisting structures are provided, and the multiple hoisting structures are symmetrically arranged based on a diagonal of the baffle.

[0018] In one embodiment, each of the lifting structures is located between the two support tubes on the same side.

[0019] This application provides a piston disassembly auxiliary device, comprising: a baffle with a first through-hole structure; the baffle is used to block the diesel engine cylinder liner; the first through-hole structure is used to lift the piston from the diesel engine cylinder liner; and multiple support tubes disposed on the baffle, the support tubes being sleeved on a corresponding one of a plurality of cylinder head studs, the plurality of cylinder head studs being disposed adjacent to the diesel engine cylinder liner. Because the multiple support tubes sleeve the multiple cylinder head studs, the baffle can descend along the cylinder head studs onto the diesel engine cylinder liner and block the diesel engine cylinder liner. Based on this, the piston is lifted from the diesel engine cylinder liner through the first through-hole structure. At this time, because the baffle blocks the diesel engine cylinder liner, the diesel engine cylinder liner will not move along with the piston during lifting, thus making piston disassembly and inspection more convenient and safer. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a piston disassembly auxiliary device provided in an embodiment of this application;

[0021] Figure 2 yes Figure 1 Exploded view of the piston disassembly auxiliary device in the diagram;

[0022] Figure 3 yes Figure 1 A schematic diagram illustrating the application of the piston disassembly auxiliary device.

[0023] Figure label:

[0024] Diesel engine cylinder liner 1, piston 2, cylinder head stud 3, baffle 100, first through hole structure 110, second through hole structure 120, lifting structure 130, lifting lug plate 131, lifting hole structure 132, support pipe 200. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0026] It should be noted that, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit this application.

[0027] In related technologies, the piston, as a crucial component and core part of the diesel engine, plays a vital role in converting thermal energy into mechanical energy. Due to the piston's prolonged operation under high temperature and pressure, a significant amount of carbon deposits accumulate on its surface, necessitating periodic engine shutdowns and cylinder removal for inspection and removal. However, during piston removal and inspection, carbon deposits may remain on the upper edge of the cylinder liner and the piston head. As the piston rises, these residual carbon deposits gradually accumulate, potentially causing the piston to jam against the cylinder liner. Further lifting may then cause the cylinder liner to move along with the piston, creating inconvenience and safety hazards during piston removal and inspection.

[0028] To limit the movement of the cylinder liner during piston removal, this application provides a piston disassembly auxiliary device, including: a baffle with a first through-hole structure; the baffle is used to block the diesel engine cylinder liner; the first through-hole structure is used to lift the piston from the diesel engine cylinder liner; and multiple support tubes disposed on the baffle, each support tube being fitted onto a corresponding cylinder head stud, the cylinder head studs being adjacent to the diesel engine cylinder. Because the multiple support tubes fit onto the multiple cylinder head studs, the baffle can descend along the cylinder head studs onto the diesel engine cylinder liner, blocking it. Based on this, the piston is lifted from the diesel engine cylinder liner through the first through-hole structure. At this time, because the baffle blocks the diesel engine cylinder liner, the cylinder liner will not move during piston removal, thus making piston disassembly and inspection more convenient and safer.

[0029] See Figures 1 to 3In this embodiment, the piston disassembly auxiliary device may include a baffle 100 and multiple support tubes 200. The baffle 100 includes a first through-hole structure 110, which can be used to block the diesel engine cylinder liner 1 and to lift the piston 2 from the diesel engine cylinder liner 1. Multiple support tubes 200 are disposed on the baffle 100 and can be fitted onto one of multiple cylinder head studs 3, which are adjacent to the diesel engine cylinder liner 1. The size of the first through-hole structure 110 is sufficient to allow the piston 2 to pass through. The first through-hole structure 110 can be a round hole, a square hole, or other polygonal through-holes, and is not specifically limited here. In addition, the support tubes 200 can be disposed on the baffle 100 by welding, snap-fitting, or other methods, and are not specifically limited here.

[0030] In one embodiment, multiple support tubes 200 may be disposed on the edge of the baffle 100 or on one side of the baffle 100, and no specific limitation is made here.

[0031] In one embodiment, the baffle 100 may further include a plurality of second through-hole structures 120, and a plurality of support tubes 200 are correspondingly disposed on the plurality of second through-hole structures 120. The second through-hole structures 120 can be used to pass through the corresponding cylinder head studs 3. Specifically, when using the piston disassembly auxiliary device, the plurality of second through-hole structures 120 are first aligned with the corresponding cylinder head studs 3, and then the piston disassembly auxiliary device is placed. At this time, the second through-hole structures 120 are used to position the piston disassembly auxiliary device. After the cylinder head studs 3 pass through the second through-hole structures 120, they can enter the support tubes 200. Then, by setting nuts at the top of the plurality of support tubes 200 for locking, the diesel engine cylinder liner 1 can be obstructed.

[0032] In one embodiment, the baffle 100 may further include a lifting structure 130. The lifting structure 130 is disposed on one side of the baffle 100 and is located on the same side of the baffle 100 as the plurality of support pipes 200. There may be one or more lifting structures 130, which is not specifically limited here. By providing the lifting structure 130, the piston disassembly auxiliary device can be lifted and placed above the diesel engine cylinder liner 1 during the use of the piston disassembly auxiliary device, thereby making the use of the piston disassembly auxiliary device more convenient.

[0033] In one embodiment, a support tube 200 is movably disposed on the second through-hole structure 120. The support tube 200 has a second thread that matches the first thread on the cylinder head stud 3. The support tube 200 can be rotated to fit the corresponding cylinder head stud 3. Specifically, when each cylinder head stud 3 passes through the corresponding second through-hole structure 120, the support tube 200 disposed on the corresponding second through-hole structure 120 can be rotated to lock the piston disassembly auxiliary device onto the cylinder head stud 3 via the second thread. This allows the piston disassembly auxiliary device to better obstruct the diesel engine cylinder liner 1.

[0034] In one embodiment, the baffle 100 is polygonal in shape. Among the multiple cylinder head studs 3 adjacent to the diesel engine cylinder liner 1 on multiple sides of the baffle 100, the cylinder head studs 3 not fitted by the multiple support tubes 200 are matched but do not contact each other. Each side can be matched with one or more cylinder head studs 3; this is not specifically limited here. Furthermore, the polygon can be hexagonal, octagonal, etc., and this is not specifically limited here.

[0035] Specifically, since the cylinder head studs 3 are arranged around the diesel engine cylinder liner 1, when using the piston removal auxiliary device, it is necessary to consider whether the cylinder head studs 3 not covered by the support tube 200 will obstruct the baffle 100. If there is obstruction, the support tube 200 will not be able to cover the corresponding cylinder head studs 3, which will result in a gap between the baffle 100 and the diesel engine cylinder liner 1, thus failing to obstruct the diesel engine cylinder liner 1. Therefore, by setting the baffle 100 as a polygon, and ensuring that multiple sides do not contact the corresponding cylinder head studs 3, the baffle 100 will not be blocked by the cylinder head studs 3 not covered by multiple support tubes 200 when the support tube 200 is placed downwards on the corresponding cylinder head studs 3.

[0036] In one embodiment, the piston disassembly auxiliary device may further include multiple sleeves (not shown in the figure), which are correspondingly disposed on multiple sides of the baffle 100. The sleeves can be used to fit cylinder head studs 3 that match the sides. By providing sleeves corresponding to multiple sides of the baffle 100, each adjacent cylinder head stud 3 of the diesel engine cylinder liner 1 can be fitted with either a sleeve or a cylinder head stud 3, thereby enabling the baffle 100 to better limit the movement of the baffle 100 during the process of blocking the diesel engine cylinder liner 1.

[0037] In one embodiment, the hoisting structure 130 can be a hoisting through-hole structure, that is, two through holes for hoisting the baffle 100 are provided on the baffle 100.

[0038] In one embodiment, the hoisting structure 130 may include a hoisting lug plate 131. The hoisting lug plate 131 is perpendicularly disposed on the side of the baffle plate opposite to the baffle plate, and is provided with a hoisting hole structure 132. The hoisting lug plate 131 may be integrally formed from the baffle plate 100 during manufacturing, or it may be provided by welding, etc., etc., without specific limitation. Furthermore, a hoisting structure 130 may include one hoisting lug plate 131 or multiple hoisting lug plates 131, without specific limitation. Additionally, the hoisting hole structure 132 provided on a hoisting lug plate 131 may be one or multiple, without specific limitation.

[0039] In one embodiment, a plurality of support tubes 200 are symmetrically arranged based on a diagonal of the baffle 100.

[0040] In one embodiment, multiple lifting structures 130 are provided, and the multiple lifting structures 130 are symmetrically arranged based on a diagonal of the baffle. Because the lifting structures 130 are symmetrically arranged, when the piston disassembly auxiliary device is lifted, the force on each lifting structure 130 is more even, thereby making it easier to lift the piston disassembly auxiliary device and improving the ease of use of the piston disassembly auxiliary device.

[0041] In one embodiment, each lifting structure 130 is located between two support pipes 200 on the same side. Because each lifting structure 130 is located between two support pipes 200 on the same side, each lifting structure 130 can better and more evenly bear the weight of multiple support pipes 200 and baffle 100, thereby making it easier to lift the piston disassembly auxiliary device and improving the ease of use of the piston disassembly auxiliary device.

[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] In this application embodiment, "at least one" refers to one or more, and "more than one" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent the existence of A alone, the simultaneous existence of A and B, or the existence of B alone. A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one of the following" and similar expressions refer to any combination of these items, including any combination of singular or plural items. For example, at least one of a, b, and c can represent: the existence of a alone, the existence of b alone, the existence of c alone, the simultaneous existence of a and b, the simultaneous existence of a and c, the simultaneous existence of b and c, or the simultaneous existence of a, b, and c, where a, b, and c can be single or multiple.

[0044] In the embodiments of this application, "instruction" can include direct and indirect instructions, as well as explicit and implicit instructions. The information indicated by a certain piece of information is called the information to be instructed. In the specific implementation process, there can be many ways to instruct the information to be instructed, such as, but not limited to, directly instructing the information to be instructed, such as instructing the information to be instructed itself or its index. It can also indirectly instruct the information to be instructed by instructing other information, where there is a relationship between the other information and the information to be instructed. It can also instruct only a part of the information to be instructed, while the other parts are known or pre-agreed upon. For example, the instruction of specific information can be achieved by using a pre-agreed (e.g., protocol-defined) arrangement of various pieces of information, thereby reducing the instruction overhead to some extent.

[0045] In the embodiments of this application, the terms and English abbreviations are exemplary examples given for ease of description and should not be construed as limiting the application in any way. This application does not preclude the possibility of defining other terms that can achieve the same or similar functions in existing or future agreements.

[0046] In the embodiments of this application, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature.

[0047] The embodiments described above are merely examples of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the protection scope of this application.

Claims

1. A piston dismounting aid, characterized in that include: A baffle, including a first through-hole structure; the baffle is used to block the diesel engine cylinder liner; The first through-hole structure is used to lift the piston from the diesel engine cylinder liner; Multiple support tubes are provided on the baffle. The support tubes are used to be sleeved on one of the multiple cylinder head studs. The multiple cylinder head studs are arranged adjacent to the diesel engine cylinder liner.

2. The apparatus of claim 1, wherein, The baffle also includes a plurality of second through hole structures, and a plurality of the support tubes are respectively disposed on the plurality of second through hole structures, and the second through hole structures are used to pass through the corresponding cylinder head studs.

3. The apparatus of claim 1, wherein, The baffle includes: The hoisting structure is installed on one side of the baffle and is located on the same side of the baffle as the plurality of the support pipes.

4. The apparatus of claim 1, wherein, The support tube is movably mounted on the second through hole structure. The support tube has a second thread that matches the first thread on the cylinder head stud. The support tube is rotated to fit the corresponding cylinder head stud.

5. The apparatus according to claim 3, characterized in that, The baffle is polygonal in shape, and the multiple sides of the baffle match the cylinder head studs that are not covered by the multiple support tubes among the multiple cylinder head studs adjacent to the diesel engine cylinder liner.

6. The apparatus according to claim 5, characterized in that, The device further includes: Multiple sleeves are provided one-to-one on multiple sides of the baffle, and the sleeves are used to fit the cylinder head studs that match the sides.

7. The apparatus according to claim 3, characterized in that, The hoisting structure includes: A lifting lug plate is disposed perpendicularly on the side of the baffle plate, and the lifting lug plate is provided with a lifting hole structure.

8. The apparatus according to claim 5, characterized in that, The plurality of the support tubes are respectively arranged symmetrically based on one diagonal of the baffle.

9. The apparatus according to claim 8, characterized in that, Multiple hoisting structures are provided, and the multiple hoisting structures are symmetrically arranged based on one diagonal of the baffle.

10. The apparatus according to claim 9, characterized in that, Each of the lifting structures is located between the two support pipes on the same side.

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