Tool for disassembling connecting rod end cover in diesel engine

Abstract

The utility model relates to the technical field of marine diesel engines, and discloses a tool for disassembling a connecting rod end cover in a diesel engine, which comprises a support plate, the support plate is fixed on two sides of the surface of a door frame of a diesel engine rack by the aid of studs for mounting door covers on two sides of the rack, and guide rails are arranged on the front portion and the rear portion of the upper surface of the support plate. Bolts are inserted between the supporting plates and the guide rails; the pipe spacers are arranged on the inner sides between the guide rails, connecting blocks are arranged at the joints of the guide rails, and bolts are arranged between the pipe spacers and the guide rails; the additionally-arranged supporting plate is fixed to a machine frame door frame, the guide rail is fixed to the supporting plate through the plug pin, the base plate is placed on the idler wheel and used for placing the connecting rod end cover, the end cover can be conveniently dragged to move towards the outer side, and therefore the complex problems that the space of the installation position of the diesel engine connecting rod end cover is narrow and small can be solved, and the installation requirement of the connecting rod end cover can be met. And the connecting rod end cover dismounting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of marine diesel engines, in particular to a tool for disassembling a connecting rod end cover in a diesel engine. Background Art

[0002] The four-stroke medium-speed diesel engine designed by the French Thermal Engine Association has a simple structure, easy maintenance, high horsepower, small size, light weight, and advanced performance indicators. It is the best among similar diesel engines for ship power. As a compression ignition internal combustion engine, the diesel engine works through four strokes: intake, compression, combustion expansion (i.e., work) and exhaust. These four processes constitute a working cycle.

[0003] The existing diesel engine connecting rod, piston and crankshaft form a motion structure. The connecting rod structure is divided into the connecting rod body, the upper end cover of the connecting rod big end and the lower end cover of the connecting rod big end. The function of the connecting rod is to convert the reciprocating linear motion of the piston into the rotary motion of the crankshaft so as to output power to the outside. The connecting rod is installed inside the diesel engine and is the link between the piston and the crankshaft. The reliability of the connecting rod ensures the normal operation of the diesel engine and the stable and reliable performance. It is an indispensable component in the diesel engine.

[0004] However, since the space at the connecting rod end cover installation location is relatively narrow, it takes production personnel a long time to disassemble the connecting rod end cover when disassembling the connecting rod, which makes it inconvenient to maintain the end cover. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a tool for disassembling a connecting rod end cover in a diesel engine, so as to solve the problem raised in the above background technology that production personnel need to spend a long time to disassemble the connecting rod end cover, which is inconvenient for production personnel to maintain the end cover.

[0007] (II) Technical solution

[0008] To achieve the above purpose, the utility model provides the following technical solution: a tool for disassembling a connecting rod end cover in a diesel engine, comprising:

[0009] A support plate, the support plate is fixed to both sides of the surface of the diesel engine frame door frame by means of studs for mounting door covers on both sides of the frame, guide rails are provided at the front and rear of the upper surface of the support plate, latches are inserted between the support plate and the guide rails, and the latches are all L-shaped;

[0010] A distance tube is arranged inside the guide rails, a connection block is arranged between the connection parts of the guide rails, and bolts are arranged between the distance tube and the guide rails;

[0011] A central shaft is arranged between the guide rails, and rollers are sleeved on the surface of the central shaft;

[0012] The baffle is arranged on the upper surface of the guide rail, and the upper surface of the guide rail is installed with a pad.

[0013] Preferably, connecting plates are installed on both sides of the surface of the support plate, and connecting plates are also installed at corresponding positions of the guide rail and the connecting plates of the support plate. The pins are inserted into the inner cavity of the connecting plates, and the connecting plates and the pins cooperate to connect the support plate and the guide rail.

[0014] Preferably, installation grooves are provided at the surface of the guide rail and the corresponding positions of the distance tubes, and installation rods are installed at the corresponding positions of the distance tubes and the installation grooves. The installation rods are inserted into the inner cavity of the installation grooves, and the installation rods cooperate with the installation grooves to connect the distance tubes and the guide rails.

[0015] Preferably, placement grooves are evenly opened on the upper surface of the guide rail, connecting rods are installed at both ends of the central axis, and the connecting rods are inserted into the inner cavity of the placement grooves. The connecting rods and the placement grooves can connect the central axis and the guide rail.

[0016] Preferably, plug-in rods are evenly installed on the front and back of the connecting block, the plug-in rods all penetrate the surface of the guide rail, nuts are screwed on the surface of the plug-in rods, and the plug-in rods and nuts enable the connecting block to position the guide rail.

[0017] Preferably, the surface of the baffle is evenly provided with first connecting holes, the upper surface of the guide rail is provided with second connecting holes at positions corresponding to the first connecting holes, a threaded rod is screwed between the first connecting hole and the second connecting hole, and a connecting head is installed on the upper surface of the pad, so that the baffle can be stably installed on the surface of the guide rail.

[0018] Preferably, the upper surfaces of the guide rail connections are provided with positioning plates, and the bolts penetrate the positioning plates and are screwed to the upper surfaces of the guide rails, so that the guide rails can be firmly connected.

[0019] Beneficial Effects

[0020] Compared with the prior art, the utility model provides a tool for disassembling the connecting rod end cover in a diesel engine, which has the following beneficial effects:

[0021] The tool for disassembling the connecting rod end cover in the diesel engine has an additional support plate fixed on the frame door frame, and the guide rail is fixed to the distance tube, the roller, the connecting block and the baffle by using bolts, and is placed on the support plate, and the guide rail is fixed to the support plate by using a latch, and a pad is placed on the roller for placing the connecting rod end cover thereon, so as to facilitate dragging and moving the end cover outward, thereby being able to solve the complex problems such as the small space at the installation place of the connecting rod end cover of the diesel engine, and the situation that the connecting rod end cover is not easy to disassemble, and can also meet the needs of connecting rod end cover installation through simple modification, the device has a simple structure, is easy to process and maintain, has complete functions, is easy to use, is simple to operate, improves the efficiency of disassembling the connecting rod end cover, and is suitable for large-scale promotion and application, and at the same time, the device has a simple structure, is labor-saving to operate, is easy to manufacture, and improves the work efficiency on site. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the connecting rod end cover removal tool of the utility model;

[0023] Figure 2 It is a schematic diagram of the overall installation structure of the end cover removal tool of the utility model;

[0024] Figure 3 This is a structural schematic diagram of the support plate of the end cover removal tool of the utility model;

[0025] Figure 4 It is a structural schematic diagram of the guide rail of the connecting rod end cover removal tool of the utility model;

[0026] Figure 5 This is a structural schematic diagram of a distance tube of a connecting rod end cover removal tool of the utility model;

[0027] Figure 6 This is a structural schematic diagram of the connecting block of the connecting rod end cover removal tool of the utility model;

[0028] Figure 7 It is a structural schematic diagram of the central axis of the connecting rod end cover removal tool of the utility model;

[0029] Figure 8 This is a schematic diagram of the structure of the roller of the connecting rod end cover removal tool of the utility model;

[0030] Fig. 9 This is a structural schematic diagram of a baffle plate of a connecting rod end cover removal tool of the utility model;

[0031] Fig.10 This is a structural schematic diagram of a backing plate of a connecting rod end cover removal tool of the utility model;

[0032] Fig.11 This is a schematic diagram of the structure of the latch of the connecting rod end cover removal tool of the utility model;

[0033] Fig.12This is a schematic diagram of the installation structure of the distance pipe of the utility model.

[0034] In the figure: 1. support plate; 2. guide rail; 3. distance tube; 4. connecting block; 5. center axis; 6. roller; 7. baffle; 8. pad; 9. latch; 10. bolt; 11. connecting plate; 12. mounting groove; 13. mounting rod; 14. placement groove; 15. connecting rod; 16. nut; 17. first connecting hole; 18. second connecting hole; 19. connector; 20. positioning plate; 21. plug-in rod. DETAILED DESCRIPTION

[0035] 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.

[0036] The utility model provides a technical solution, a tool for disassembling the connecting rod end cover in a diesel engine, see Figure 1 , including support plate 1, see Figure 2 The support plate 1 is fixed to both sides of the diesel engine frame door frame surface by using the studs for mounting the door cover on both sides of the frame. Figure 1 The front and rear parts of the upper surface of the support plate 1 are provided with guide rails 2, and latches 9 are inserted between the support plate 1 and the guide rails 2. Fig.11 The latches 9 are all L-shaped. The material of the guide rail 2 is an aluminum alloy plate, which is light in weight. The material of the latch 9 is Q35A, which is made by bending a round bar and is used to fix the guide rail 2 and the support plate 1;

[0037] See also Figure 1 , the distance tube 3 is arranged inside the guide rails 2, see Figure 5 The distance tube 3 is cylindrical in design, a connection block 4 is provided between the connection of the guide rail 2, bolts 10 are provided between the distance tube 3 and the guide rail 2, and the connection block 4 is made of 45# steel, with a simple style and convenient production;

[0038] The central shaft 5 is disposed between the guide rails 2, and rollers 6 are sleeved on the surface of the central shaft 5. Figure 8 The roller 6 is cylindrical in design, the center shaft 5 is made of 45# steel, the style is simple, and the production is convenient. The roller 6 is made of nylon, which has a hardness far lower than that of metal materials and is light in weight. The center hole of the roller 6 is larger than the diameter of the center shaft 5, so that it can be installed on the center shaft 5, and the roller 6 can rotate freely.

[0039] See also Figure 1The baffle plate 7 is arranged on the upper surface of the guide rail 2. The upper surface of the guide rail 2 is installed with a pad 8. The baffle plate 7 is made of standard angle steel, the material is Q235A, and there are multiple through holes on it. It is fixed to the guide rail 2 with bolts 10 to prevent the connecting rod end cover from tipping to both sides when moving. The bolts 10 are standard parts, easy to purchase, and are used to fix parts;

[0040] The support plate 1 is fixed on the frame door frame, the guide rail 2 is fixed with the distance tube 3, the roller 6, the connecting block 4 and the baffle 7 by using the bolts 10 and placed on the support plate 1, the guide rail 2 is fixed on the support plate 1 by the latch 9, a pad 8 is placed on the roller 6, for placing the connecting rod end cover thereon, so as to facilitate dragging and moving the end cover outward, thereby solving the complex problems such as the narrow space at the installation place of the connecting rod end cover of the diesel engine, and the situation that the connecting rod end cover is not easy to remove, and the needs of the connecting rod end cover installation can be met through simple modification, the device has the advantages of simple structure, convenient processing and maintenance, complete functions, convenient use and simple operation by production personnel, which improves the efficiency of the disassembly of the connecting rod end cover and is suitable for large-scale promotion and application, at the same time, the device has the advantages of simple structure, labor-saving operation, convenient production and improved on-site work efficiency.

[0041] See also Figure 3 , connecting plates 11 are installed on both sides of the surface of the support plate 1, and connecting plates 11 are also installed at the corresponding positions of the guide rail 2 and the connecting plates 11 of the support plate 1. The latches 9 are inserted into the inner cavity of the connecting plates 11. The connecting plates 11 and the latches 9 can cooperate to connect the support plate 1 with the guide rail 2. The support plate 1 is a welded part made of Q235A, with a simple style and easy to make. It is placed on the roller 6 to facilitate dragging the connecting rod end cover.

[0042] See also Figure 4 The surface of the guide rail 2 and the corresponding position of the distance tube 3 are both provided with mounting grooves 12, see Fig.12 The distance tube 3 and the installation groove 12 are both installed with installation rods 13 at corresponding positions. The installation rods 13 are inserted into the inner cavity of the installation groove 12. The installation rods 13 cooperate with the installation groove 12 to connect the distance tube 3 to the guide rail 2.

[0043] See also Figure 4 , the upper surface of the guide rail 2 is evenly provided with placement grooves 14, see Figure 7 Connecting rods 15 are installed at both ends of the central axis 5, and the connecting rods 15 are inserted into the inner cavity of the placement groove 14. The connecting rods 15 and the placement groove 14 can connect the central axis 5 with the guide rail 2.

[0044] See also Figure 6 , the front and back of the connecting block 4 are evenly equipped with plug-in rods 21, see Fig.12The plug-in rods 21 all penetrate the surface of the guide rail 2, and the surfaces of the plug-in rods 21 are screwed with nuts 16. The plug-in rods 21 and the nuts 16 enable the connecting block 4 to position the guide rail 2.

[0045] See also Fig. 9 The surface of the baffle 7 is uniformly provided with first connection holes 17, and the upper surface of the guide rail 2 is uniformly provided with second connection holes 18 at positions corresponding to the first connection holes 17. A threaded rod is screwed between the first connection hole 17 and the second connection hole 18. Please refer to Fig.10 A connector 19 is installed on the upper surface of the pad 8, which can stably install the baffle 7 on the surface of the guide rail 2.

[0046] See also Fig.12 A positioning plate 20 is provided on the upper surface of the connection of the guide rails 2, and the bolts 10 penetrate the positioning plate 20 and are screwed to the upper surface of the guide rails 2, so that the guide rails 2 can be firmly connected.

[0047] In this device, the support plate 1 is first fixed to the two sides of the diesel engine frame surface by using the studs for installing the door cover on both sides of the frame. The support plate 1 is a welded part made of Q235A, with a simple style and convenient production. It is placed on the roller 6 to facilitate dragging the connecting rod end cover. Then the support plate 1 is fixed to the frame door frame, the guide rail 2 is fixed with the distance tube 3, the roller 6, the connecting block 4 and the baffle 7 by bolts 10, and is placed on the support plate 1. The guide rail 2 is fixed to the support plate 1 with a latch 9. Finally, a pad 8 is placed on the roller 6, and the guide plate 8 is fixed with a latch 9. The connecting rod end cover is placed on it, which is convenient for dragging the end cover to move outward, thereby solving complex problems such as the small space at the installation place of the connecting rod end cover of the diesel engine and the situation that the connecting rod end cover is not easy to remove. Through simple modification, the needs of connecting rod end cover installation can also be met. The device has a simple structure, convenient processing and maintenance, and complete functions. It is easy for production personnel to use and simple to operate, which improves the efficiency of connecting rod end cover removal and is suitable for large-scale promotion and application. At the same time, the device has a simple structure, labor-saving operation, and is easy to make, which improves the work efficiency on site.

[0048] 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.

[0049] 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 tool for disassembling a connecting rod end cover in a diesel engine, characterized in that: include: A support plate (1), the support plate (1) is fixed to both sides of the surface of the diesel engine frame door frame by means of studs for mounting door covers on both sides of the frame, guide rails (2) are provided at the front and rear of the upper surface of the support plate (1), latches (9) are inserted between the support plate (1) and the guide rails (2), and the latches (9) are all L-shaped; A distance tube (3) is arranged inside the guide rails (2), a connection block (4) is arranged between the connection points of the guide rails (2), and bolts (10) are arranged between the distance tube (3) and the guide rails (2); A central shaft (5) is arranged between the guide rails (2), and rollers (6) are sleeved on the surface of the central shaft (5); The baffle plate (7) is arranged on the upper surface of the guide rail (2), and the upper surface of the guide rail (2) is installed with a pad (8).

2. A tool for disassembling a connecting rod end cover in a diesel engine according to claim 1, characterized in that: Connecting plates (11) are installed on both sides of the surface of the support plate (1), and connecting plates (11) are also installed at corresponding positions of the guide rail (2) and the connecting plates (11) of the support plate (1), and the latches (9) are inserted into the inner cavity of the connecting plates (11).

3. A tool for disassembling a connecting rod end cover in a diesel engine according to claim 1, characterized in that: The surfaces of the guide rails (2) and the positions corresponding to the distance tubes (3) are provided with mounting grooves (12); the distance tubes (3) and the mounting grooves (12) are provided with mounting rods (13) at corresponding positions; and the mounting rods (13) are inserted into the inner cavity of the mounting grooves (12).

4. A tool for disassembling a connecting rod end cover in a diesel engine according to claim 1, characterized in that: The upper surface of the guide rail (2) is evenly provided with placement grooves (14), and connecting rods (15) are installed at both ends of the central axis (5), and the connecting rods (15) are inserted into the inner cavity of the placement grooves (14).

5. A tool for disassembling a connecting rod end cover in a diesel engine according to claim 1, characterized in that: Insertion rods (21) are evenly installed on the front and back sides of the connection block (4); the insertion rods (21) penetrate the surface of the guide rail (2); and nuts (16) are screwed onto the surface of the insertion rods (21).

6. A tool for disassembling a connecting rod end cover in a diesel engine according to claim 1, characterized in that: The surface of the baffle (7) is evenly provided with first connection holes (17), the upper surface of the guide rail (2) is provided with second connection holes (18) at positions corresponding to the first connection holes (17), a threaded rod is screwed between the first connection hole (17) and the second connection hole (18), and a connection head (19) is installed on the upper surface of the pad (8).

7. A tool for disassembling a connecting rod end cover in a diesel engine according to claim 1, characterized in that: The upper surface of the connecting part of the guide rail (2) is provided with a positioning plate (20), and the bolts (10) pass through the positioning plate (20) and are screwed to the upper surface of the guide rail (2).

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