Universal tool for disassembling and assembling piston ring of marine diesel engine

Abstract

The utility model relates to the technical field of universal tools, and discloses a universal tool for disassembling and assembling a piston ring of a marine diesel engine, which comprises two rotating handles and a silicon rubber case, a first connecting plate and a second connecting plate are respectively arranged between the two rotating handles, the first connecting plate and the second connecting plate are respectively welded with the two rotating handles; the rotating pin is arranged between the first connecting plate and the second connecting plate; the piston ring dismounting hook is arranged at one end outside the rotating handle, and the piston ring dismounting hook is rotationally connected with the rotating handle through a positioning rotating shaft; the reset spring is arranged between the piston ring dismounting hook and the rotating handle, and the two ends of the reset spring are connected with the piston ring dismounting hook and the rotating handle respectively. The piston ring dismounting hook is controlled by rotating the handle so that the piston ring dismounting hook can be conveniently combined with an opening of the piston ring, and therefore the piston ring is convenient to dismount.

Description

Technical Field

[0001] The utility model relates to the technical field of universal tools, in particular to a universal tool for disassembling and assembling a piston ring of a marine diesel engine. Background Art

[0002] During the assembly process of diesel engine parts, many special tools are often needed. The large number of tools makes management and use more troublesome. Among them, the disassembly and assembly tools of piston ring assemblies have always been designed with special tools of different sizes for each engine model, and the structure of the tool is relatively complex. Figure 1 As shown, it consists of 22 parts, the production cost of these parts is high and the replacement steps are complicated. Secondly, the tool is handheld and the weight varies according to the size of the machine model, about 2 to 3 kg. Long-term use will easily cause fatigue and require rest, thus increasing unnecessary non-working time. Therefore, a universal tool for disassembling and assembling the piston ring of a marine diesel engine is proposed. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the deficiencies of the prior art, the utility model provides a universal tool for disassembling and assembling a piston ring of a marine diesel engine, so as to solve the problems raised in the above-mentioned background technology.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a universal tool for disassembling and assembling a piston ring of a marine diesel engine, comprising:

[0007] A rotating handle and a silicone sleeve, wherein two rotating handles are provided, a first connecting plate and a second connecting plate are respectively provided between the two rotating handles, and the first connecting plate and the second connecting plate are respectively welded and connected to the two rotating handles;

[0008] A rotating pin is disposed between the first connecting plate and the second connecting plate;

[0009] The piston ring disassembly hook is arranged at one end of the outer side of the rotating handle, and the piston ring disassembly hook is rotatably connected with the rotating handle through a positioning shaft;

[0010] The reset spring is arranged between the piston ring disassembly hook and the rotating handle, and the two ends of the reset spring are respectively connected to the piston ring disassembly hook and the rotating handle. The inner hook surface of the piston ring disassembly hook is designed to be an inclined surface, which is convenient for the operator to embed and remove the tool during installation, and can prevent the piston ring from slipping or even being ejected during force. The internal width of the claw hook is slightly larger than the width of the piston ring, which can accommodate piston rings within a certain size range. It can prevent the piston ring from moving when it is under force, limit its degree of freedom, and ensure the stability of the workpiece during operation.

[0011] Preferably, the silicone sleeve is arranged on the outside of the rotating handle, and a shell is arranged on one end of the outside of the silicone sleeve.

[0012] Preferably, a fixing bolt is installed inside the shell, and the fixing bolt passes through and extends into the inside of the shell, and the fixing bolt is used to fix the shell and the silicone sleeve to the outside of the rotating handle.

[0013] Preferably, an anti-slip strip is provided on the outside of the silicone sleeve, and the anti-slip strip is integrally formed with the silicone sleeve, and the anti-slip strip plays a role in improving the anti-slip property.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a universal tool for disassembling and assembling a piston ring of a marine diesel engine, which has the following beneficial effects:

[0016] The utility model rotates the rotating handle to adjust to a suitable size, so that the piston ring opening is embedded in the square groove inside the piston ring disassembly hook, and after the claw hook tip fixes the two sides of the piston ring opening, the rotating handle is manually adjusted outwards again to open the piston ring overlap. At this time, the inner diameter of the piston ring needs to be larger than the outer diameter of the piston head. After it is installed in the groove of the piston head, the rotating handle is adjusted inwards to make the piston ring disassembly hook move inwards, narrow the gap at the piston ring opening, and prevent it from falling from the groove of the piston head. Finally, the tool is removed to easily complete the installation and removal of the piston ring. Its parts are easy to process, easy to purchase and replace, and have certain versatility, which can solve the cumbersome problems of special tools in the process of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of a conventional piston ring disassembly and assembly tool;

[0018] Figure 2 This is a schematic diagram of the tool structure of the utility model;

[0019] Figure 3 It is a partial schematic diagram of the tool of the utility model;

[0020] Figure 4 For the utility model Figure 3A partial enlarged view of the middle A area;

[0021] Figure 5 This is a schematic diagram of the piston ring structure of the utility model;

[0022] Figure 6 This is a three-dimensional diagram of the silicone sleeve structure of the present utility model.

[0023] In the figure: 1. Rotating handle; 2. Piston ring disassembly hook; 3. First connecting plate; 4. Second connecting plate; 5. Return spring; 6. Rotating pin; 7. Positioning shaft; 8. Silicone sleeve; 9. Housing; 10. Fixing bolt; 11. Anti-slip strip. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides a technical solution, a universal tool for disassembling and assembling piston rings of marine diesel engines, please refer to Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 ,include:

[0026] A rotating handle 1 and a silicone sleeve 8, wherein two rotating handles 1 are provided, a first connecting plate 3 and a second connecting plate 4 are respectively provided between the two rotating handles 1, and the first connecting plate 3 and the second connecting plate 4 are respectively welded to the two rotating handles 1;

[0027] A rotating pin 6 is disposed between the first connecting plate 3 and the second connecting plate 4;

[0028] The piston ring disassembly hook 2 is arranged at one end of the outer side of the rotating handle 1, and the piston ring disassembly hook 2 is rotatably connected with the rotating handle 1 through a positioning shaft 7;

[0029] The reset spring 5 is arranged between the piston ring disassembly hook 2 and the rotating handle 1, and the two ends of the reset spring 5 are respectively connected to the piston ring disassembly hook 2 and the rotating handle 1. The inner hook surface of the piston ring disassembly hook 2 is designed to be an inclined surface, which is convenient for the operator to embed and remove the tool during installation, and can prevent the piston ring from slipping or even being ejected during the force application process. The internal width of the claw hook is slightly larger than the width of the piston ring, and can accommodate piston rings within a certain size range. It can prevent the piston ring from moving when it is subjected to force, limit its degree of freedom, and ensure the stability of the workpiece during operation.

[0030] See also Figure 6 The silicone sleeve 8 is arranged on the outside of the rotating handle 1, and a shell 9 is arranged on one end of the outside of the silicone sleeve 8.

[0031] See also Figure 6 A fixing bolt 10 is installed inside the shell 9, and the fixing bolt 10 penetrates and extends into the inside of the shell 9. The fixing bolt 10 is used to fix the shell 9 and the silicone sleeve 8 to the outside of the rotating handle 1.

[0032] See also Figure 6 An anti-slip strip 11 is arranged outside the silicone sleeve 8, and the anti-slip strip 11 is integrally formed with the silicone sleeve 8, and the anti-slip strip 11 plays a role in improving the anti-slip property.

[0033] This solution: adjust the rotating handle 1 so that the piston ring opening is embedded in the square groove inside the piston ring disassembly hook 2. After the claw hook tip fixes the two sides of the piston ring opening, adjust the rotating handle 1 outward to open the piston ring overlap, so that the piston ring opening size can be increased to achieve its installation. The disassembly principle is the same. By using this universal tool, the installation and disassembly of piston rings below B&W50 machines can be easily achieved, and it can completely replace the special piston ring installation tool for small models, solving the problems of bulky auxiliary tools and inconvenient operation during hand-held operation by fitters.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A universal tool for disassembling and assembling piston rings of marine diesel engines, characterized in that: include: A rotating handle (1) and a silicone sleeve (8), wherein two rotating handles (1) are provided, a first connecting plate (3) and a second connecting plate (4) are respectively provided between the two rotating handles (1), and the first connecting plate (3) and the second connecting plate (4) are respectively welded to the two rotating handles (1); A rotating pin (6) is arranged between the first connecting plate (3) and the second connecting plate (4); The piston ring disassembly hook (2) is arranged at one end outside the rotating handle (1), and the piston ring disassembly hook (2) is rotatably connected to the rotating handle (1) via a positioning rotating shaft (7); The return spring (5) is arranged between the piston ring disassembly hook (2) and the rotating handle (1), and the two ends of the return spring (5) are respectively connected to the piston ring disassembly hook (2) and the rotating handle (1).

2. A universal tool for disassembling and assembling a piston ring of a marine diesel engine according to claim 1, characterized in that: The silicone sleeve (8) is arranged outside the rotating handle (1), and a housing (9) is arranged at one end outside the silicone sleeve (8).

3. A universal tool for disassembling and assembling a piston ring of a marine diesel engine according to claim 2, characterized in that: A fixing bolt (10) is installed inside the housing (9), and the fixing bolt (10) penetrates and extends into the interior of the housing (9).

4. A universal tool for disassembling and assembling a piston ring of a marine diesel engine according to claim 3, characterized in that: An anti-slip strip (11) is arranged outside the silicone sleeve (8), and the anti-slip strip (11) and the silicone sleeve (8) are integrally formed.

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