Marine diesel engine connecting rod dismounting tool

Abstract

The utility model relates to the technical field of connecting rod dismounting tools, in particular to a marine diesel engine connecting rod dismounting tool which comprises a tool shell, an adjusting device is arranged in the middle of the interior of the tool shell, the upper portion of the left side of the tool shell is rotationally connected with a hand wheel through a bearing, and the right end of the hand wheel is fixedly connected with a screw rod. The outer wall of the screw rod is in threaded connection with an L-shaped plate, one end of the L-shaped plate is fixedly connected with a sliding block, and the outer wall of the sliding block is in sliding connection with the tool shell through a sliding groove. Through cooperation of a hollow cylinder, a hollow rotating disc, round rods and limiting blocks, the hollow rotating disc enables the six round rods to move towards the middle at the same time through sliding grooves, the round rods drive the limiting blocks to move, the six limiting blocks are attached to the six edges of a connecting rod mounting screw, the connecting rod mounting screw is fixed, and the connecting rod mounting screw is fixed by adjusting the positions of the six limiting blocks. And connecting rod mounting screws of different sizes can be fixed, so that different diesel engine connecting rods can be disassembled, and the application range is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of connecting rod disassembly tooling, in particular to a connecting rod disassembly tooling for a marine diesel engine. Background Art

[0002] Marine diesel engines have high thermal efficiency, good economy, easy starting, and great adaptability to various types of ships. They were quickly used as ship propulsion power after they came out. The connecting rod is an important part of the diesel engine, connected to the piston rod and crankshaft of the diesel engine. When disassembling the connecting rod, the marine diesel engine connecting rod disassembly tool is often needed.

[0003] For example, a marine diesel engine connecting rod disassembly tool with the authorization announcement number CN217751210U. Although the above document enables the spacing between the wrench sleeve and the installation sleeve to be adjusted, and the overall length of the wrench sleeve mechanism to be adjusted, so that the connecting rod disassembly tool can adapt to a narrow area and facilitate the disassembly of the connecting rod, when the marine diesel engine connecting rod disassembly tool in the above document is used, the function of the disassembly tool is realized by putting the wrench sleeve on the connecting rod screw to be disassembled, and removing the screw by rotating the wrench sleeve. However, due to the different sizes of diesel engine connecting rods of different diesel engines, the sizes of screws required for installation are different. The above document can only disassemble connecting rod screws of the same size, and cannot adjust the fixed size of the wrench sleeve according to the size of the screw, resulting in a problem of limited scope of use. Utility Model Content

[0004] The utility model aims to solve the problem of the marine diesel engine connecting rod disassembly tool in the above-mentioned document. Since different diesel engines have different sizes of diesel engine connecting rods, the sizes of screws required for installation are different. The above-mentioned document can only disassemble the connecting rod screws of the same size, and the fixed size provided by the wrench cannot be adjusted according to the size of the screws, so the scope of use is limited. A marine diesel engine connecting rod disassembly tool is proposed.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A marine diesel engine connecting rod disassembly tool is designed, comprising a tool shell, an adjustment device is arranged in the middle of the tool shell, the upper left side of the tool shell is rotatably connected to a hand wheel through a bearing, a screw is fixedly connected to the right end of the hand wheel, the outer wall of the screw is threadedly connected to an L-shaped plate, a slider is fixedly connected to one end of the L-shaped plate, the outer wall of the slider is slidably connected to the tool shell through a slide groove, and a wrench shell is fixedly connected to the other end of the L-shaped plate.

[0007] Preferably, the adjusting device comprises a hollow cylinder, the left side of the outer wall of the hollow cylinder is slidably connected to the tooling shell through a slide groove, the right end of the hollow cylinder is fixedly connected with a hollow turntable, the right side of the outer wall of the hollow turntable is slidably connected to six round rods through a slide groove, the outer walls of the six round rods are all fixedly connected with limit blocks, and the outer walls of the six limit blocks are all slidably connected to the wrench shell through slide grooves.

[0008] Preferably, the right side of the outer wall of the hollow cylinder is slidably connected to a limiting ring via a sliding groove, and the outer wall of the limiting ring is fixedly connected to the wrench housing.

[0009] Preferably, one end of the six limit blocks is tightly fitted with the connecting rod mounting screw, and the diesel engine connecting rod is installed on the outer wall of the connecting rod mounting screw.

[0010] Preferably, the lower left side of the tooling housing is slidably connected to the limiting rod through a sliding groove, and one end of the limiting rod is slidably engaged with the hollow cylinder through the sliding groove.

[0011] Preferably, the bottom side of the limiting rod is fixedly connected to one end of the return spring, and the other end of the return spring is fixedly connected to the tooling housing.

[0012] The utility model provides a marine diesel engine connecting rod disassembly tool, which has the beneficial effects of: through the cooperation between the hollow cylinder, the hollow turntable, the round rod and the limit block, the hollow cylinder is rotated, the hollow cylinder drives the hollow turntable to rotate clockwise, the hollow turntable makes the six round rods move to the middle at the same time through the sliding groove, the round rod drives the limit block to move, so that the six limit blocks are fitted on the six sides of the connecting rod mounting screws, the connecting rod mounting screws are fixed, and the connecting rod mounting screws of different sizes can be fixed by adjusting the positions of the six limit blocks, so that different diesel engine connecting rods can be disassembled, thereby improving the scope of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 for Figure 1 Schematic diagram of the main plan view of the internal connection structure;

[0015] Figure 3 for Figure 1 The right side plan view of the internal connection structure;

[0016] Figure 4 for Figure 2 Schematic diagram of the connection structure at A in the middle.

[0017] In the figure: 1. tooling housing, 2. limiting ring, 3. wrench housing, 4. adjusting device, 401. hollow cylinder, 402. hollow turntable, 403. round rod, 404. limiting block, 4A1. fill light, 5. hand wheel, 6. screw rod, 7. L-shaped plate, 8. slider, 9. limiting rod, 10. return spring, 11. connecting rod mounting screw, 12. diesel engine connecting rod. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings:

[0019] Embodiment 1:

[0020] See also Figure 1-4 In this embodiment: a marine diesel engine connecting rod disassembly tool, including a tool shell 1, an adjusting device 4 is arranged in the middle of the tool shell 1, the upper left side of the tool shell 1 is rotatably connected with a hand wheel 5 through a bearing, the tool shell 1 rotatably supports the hand wheel 5 through the bearing, a screw rod 6 is fixedly connected to the right end of the hand wheel 5, the hand wheel 5 drives the screw 6 to rotate, the outer wall of the screw 6 is threadedly connected to the L-shaped plate 7, the screw 6 will make the L-shaped plate 7 move left and right, one end of the L-shaped plate 7 is fixedly connected with a slider 8, the L-shaped plate 7 moves under the restriction of the slider 8, the outer wall of the slider 8 is slidably connected to the tool shell 1 through a slide groove, the other end of the L-shaped plate 7 is fixedly connected with a wrench shell 3, the L-shaped plate 7 pushes the wrench shell 3 to move left and right.

[0021] The adjusting device 4 includes a hollow cylinder 401, a hollow turntable 402, a round rod 403 and a limit block 404. The left side of the outer wall of the hollow cylinder 401 is slidably connected to the tooling shell 1 through a slide groove. The hollow cylinder 401 can slide left and right along the slide groove on the tooling shell 1. The right end of the hollow cylinder 401 is fixedly connected with a hollow turntable 402. When the hollow cylinder 401 rotates, it can drive the hollow turntable 402 to rotate. The right side of the outer wall of the hollow turntable 402 is slidably connected to the six round rods 403 through the slide groove. When the hollow turntable 402 rotates clockwise, the six round rods 403 are moved outward at the same time through the slide groove. The outer walls of the six round rods 403 are all fixedly connected to the limit blocks 404. The round rods 403 drive the limit blocks 404 to move. The outer walls of the six limit blocks 404 are all slidably connected to the wrench shell 3 through the slide groove. The wrench shell 3 limits the moving direction of the limit blocks 404 through the slide groove.

[0022] Rotate the hollow cylinder 401, and the hollow cylinder 401 drives the hollow turntable 402 to rotate clockwise. The hollow turntable 402 causes the six round rods 403 to move toward the middle at the same time through the slide groove. The round rods 403 drive the limit blocks 404 to move, so that the six limit blocks 404 fit on the six sides of the connecting rod mounting screw 11, and fix the connecting rod mounting screw 11. By adjusting the positions of the six limit blocks 404, connecting rod mounting screws 11 of different sizes can be fixed, so that different diesel engine connecting rods 12 can be disassembled, thereby improving the scope of use.

[0023] The right side of the outer wall of the hollow cylinder 401 is slidably connected to the limit ring 2 through a sliding groove, and the hollow cylinder 401 can slide along the inner wall of the limit ring 2. At the same time, when the limit ring 2 moves left and right, it can drive the hollow cylinder 401 to move. The outer wall of the limit ring 2 is fixedly connected to the wrench housing 3, and one end of the six limit blocks 404 is tightly fitted with the connecting rod mounting screw 11. The limit blocks 404 are used to fix the connecting rod mounting screw 11. The outer wall of the connecting rod mounting screw 11 is installed with a diesel engine connecting rod 12. By rotating the connecting rod mounting screw 11, the tooling housing 1 can be disassembled. The lower left side of the tooling housing 1 The limiting rod 9 is slidably connected to the limit rod 9 through a slide groove. The limiting rod 9 can slide up and down along the slide groove here. One end of the limiting rod 9 is slidably engaged with the hollow cylinder 401 through the slide groove. By inserting the limiting rod 9 into the notch of the outer wall of the hollow cylinder 401, the rotation of the hollow cylinder 401 is limited. The bottom side of the limiting rod 9 is fixedly connected to one end of the return spring 10. When the limiting rod 9 moves downward, the return spring 10 will be compressed. The other end of the return spring 10 is fixedly connected to the tooling housing 1. The current return spring 10 is in a compressed state, and the elastic coefficient of the return spring 10 is 10-30N / cm.

[0024] Working principle:

[0025] When the marine diesel engine connecting rod disassembly tool is used, first, the user aligns the wrench housing 3 with the connecting rod mounting screw 11 on the diesel engine connecting rod 12, and rotates the hand wheel 5, the hand wheel 5 drives the screw 6 to rotate, the screw 6 causes the L-shaped plate 7 to move to the right, the L-shaped plate 7 moves under the restriction of the slider 8, and pushes the wrench housing 3 into the diesel engine so that the connecting rod mounting screw 11 is located between the six limit blocks 404, then rotates the hollow cylinder 401, the hollow cylinder 401 drives the hollow turntable 402 to rotate clockwise, the hollow turntable 402 causes the six round rods 403 to move to the middle at the same time through the slide groove, and the round rods 403 drive the limit blocks 404 to move to the middle. The positioning block 404 moves so that the six limiting blocks 404 fit on the six sides of the connecting rod mounting screw 11 to fix the connecting rod mounting screw 11. By adjusting the positions of the six limiting blocks 404, connecting rod mounting screws 11 of different sizes can be fixed, so that different diesel engine connecting rods 12 can be disassembled, thereby improving the scope of use. At this time, the tooling housing 1 is rotated, and the tooling housing 1 drives the wrench housing 3 to rotate through the L-shaped plate 7, thereby driving the six limiting blocks 404 to rotate. The limiting blocks 404 will twist the connecting rod mounting screw 11, thereby disassembling the diesel engine connecting rod 12 and completing the disassembly of the diesel engine connecting rod 12.

[0026] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A marine diesel engine connecting rod disassembly tool, comprising a tool housing (1), characterized in that: An adjusting device (4) is arranged in the middle of the tool housing (1); the upper left side of the tool housing (1) is rotatably connected to a hand wheel (5) via a bearing; a screw rod (6) is fixedly connected to the right end of the hand wheel (5); the outer wall of the screw rod (6) is threadedly connected to an L-shaped plate (7); a slider (8) is fixedly connected to one end of the L-shaped plate (7); the outer wall of the slider (8) is slidably connected to the tool housing (1) via a slide groove; and the other end of the L-shaped plate (7) is fixedly connected to a wrench housing (3).

2. A marine diesel engine connecting rod disassembly tool according to claim 1, characterized in that: The adjusting device (4) comprises a hollow cylinder (401), the left side of the outer wall of the hollow cylinder (401) is slidably connected to the tool housing (1) via a slide groove, the right end of the hollow cylinder (401) is fixedly connected with a hollow turntable (402), the right side of the outer wall of the hollow turntable (402) is slidably connected to six round rods (403) via a slide groove, the outer walls of the six round rods (403) are all fixedly connected to limit blocks (404), and the outer walls of the six limit blocks (404) are all slidably connected to the wrench housing (3) via the slide groove.

3. A marine diesel engine connecting rod disassembly tool according to claim 2, characterized in that: The right side of the outer wall of the hollow cylinder (401) is slidably connected to the limiting ring (2) via a sliding groove, and the outer wall of the limiting ring (2) is fixedly connected to the wrench housing (3).

4. The marine diesel engine connecting rod disassembly tool according to claim 2, characterized in that: One end of each of the six limit blocks (404) is tightly fitted with a connecting rod mounting screw (11), and a diesel engine connecting rod (12) is mounted on the outer wall of the connecting rod mounting screw (11).

5. The marine diesel engine connecting rod disassembly tool according to claim 1, characterized in that: The lower left side of the tool housing (1) is slidably connected to the limiting rod (9) via a sliding groove, and one end of the limiting rod (9) is slidably engaged with the hollow cylinder (401) via the sliding groove.

6. A marine diesel engine connecting rod disassembly tool according to claim 5, characterized in that: The bottom side of the limiting rod (9) is fixedly connected to one end of the return spring (10), and the other end of the return spring (10) is fixedly connected to the tool housing (1).

Images