Cylinder liner step grinding device for ship maintenance

Abstract

The utility model relates to the technical field of ship maintenance, and discloses a cylinder liner step grinding device for ship maintenance, including a protective shell, a motor 1 is fixedly connected to the interior of the protective shell, a worm is fixedly connected to the output end of the motor 1, a worm wheel is rotatably connected to the interior of the protective shell, the worm is meshed with the worm wheel, a rotating plate is fixedly connected to the lower surface of the worm wheel, the outer wall of the rotating plate is rotatably connected to the interior of the protective shell, a connecting rod is slidably connected to the interior of the rotating plate, a sliding rod is fixedly connected to the outer wall of the connecting rod, and a guide plate is fixedly connected to the interior of the protective shell. In the utility model, the worm is firstly driven to rotate by the motor 1, which solves the problem that the deviation and slipping are easy to occur during the grinding process, thereby affecting the grinding effect, and the protective shell is stably fixed, so that the grinding depth and speed can be better controlled, thereby ensuring the grinding quality.

Description

Technical Field

[0001] The utility model relates to the technical field of ship maintenance, in particular to a cylinder liner step grinding device for ship maintenance. Background Art

[0002] The ship cylinder liner is an important component of the ship power unit. It is the "heart" of the engine. The inner cavity of the cylinder liner cooperates with the piston to form a combustion chamber, which undertakes the important task of burning high-temperature and high-pressure gas. The cylinder liner is usually made of cast iron or stainless steel, and its inner wall needs to be kept smooth to reduce fuel consumption and improve engine efficiency. During the use of the ship, due to various reasons, such as seawater corrosion, fuel deposition, and wear of high-temperature and high-pressure gas, the inner wall of the cylinder liner will gradually become rough and even scratched, which will affect the normal operation of the engine. Therefore, the cylinder liner needs to be repaired and polished regularly.

[0003] After searching, a cylinder liner step grinding device for ship maintenance is disclosed in the announcement number: CN215201276U. It includes a vertically arranged sleeve, a support collar is sleeved on the upper part of the sleeve, a plurality of support frames are evenly and horizontally arranged on the outer wall of the support collar along the circumferential direction thereof, a centering mechanism is arranged at the bottom of the sleeve, a cylinder is vertically arranged at the center of the bottom of the centering mechanism, the axis of the cylinder piston rod is arranged in line with the axis of the sleeve, a support rod is hinged at the bottom of the cylinder piston rod, a steering mechanism is arranged on the support rod, and a long strip hole is vertically arranged at the outer end of the support rod along its length direction. It can accurately realize the centering process with the cylinder liner, ensuring that the pneumatic grinder always rotates along the circumferential direction of the inner wall of the cylinder liner, so that the depth of the grinded grooves is consistent. The device is firmly fixed, providing stable support for the pneumatic grinder during the grinding process, preventing the pneumatic grinder from deviating from the original rotation route and causing deviation, solving the problems existing in the prior art. In this application, the pneumatic grinder is aligned with the cylinder liner through structures such as a support frame, a square tube, and a telescopic rod, ensuring that the pneumatic grinder always rotates along the circumferential direction of the inner wall of the cylinder liner, so that the depth of the grinded grooves is consistent. This setting only uses multiple telescopic rods to cooperate with support blocks for centering. During the grinding process, it is easy to have phenomena such as deviation and slippage, resulting in unstable fixation, thereby affecting the grinding effect. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a cylinder liner step grinding device for ship maintenance, aiming to improve the problem that deviation and slippage are prone to occur during the grinding process, resulting in unstable fixation, thus affecting the grinding effect.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a cylinder liner step grinding device for ship maintenance, comprising a protective shell, the interior of the protective shell is fixedly connected to a motor 1, the output end of the motor 1 is fixedly connected to a worm, the interior of the protective shell is rotatably connected to a worm wheel, the worm is meshed with the worm wheel, the lower surface of the worm wheel is fixedly connected to a rotating plate, the outer wall of the rotating plate is rotatably connected to the interior of the protective shell, the interior of the rotating plate is slidably connected to a connecting rod, the outer wall of the connecting rod is fixedly connected to a sliding rod, the interior of the protective shell is fixedly connected to a guide plate, the outer wall of the sliding rod is slidably connected to the interior of the guide plate, one end of the sliding rod is fixedly connected to a special-shaped frame, the lower surface of the special-shaped frame is fixedly connected to a clamp, the special-shaped frame and the sliding rod are both slidably connected to the interior of the protective shell, and a rotating component is provided inside the protective shell.

[0006] Furthermore, the rotating assembly includes a rotating disk, and an outer wall of the rotating disk is rotatably connected to the inside of the protective shell.

[0007] Furthermore, the interior of the protective shell is fixedly connected to a second motor, an output end of the second motor is fixedly connected to a gear, and an outer wall of the gear is rotatably connected to the interior of the protective shell.

[0008] Furthermore, an annular rack is fixedly connected to the outer wall of the rotating disk, and the annular rack is meshed with the gear.

[0009] Furthermore, a cylinder is fixedly connected to the interior of the rotating disk, and a positioning block is fixedly connected to the output end of the cylinder.

[0010] Furthermore, the interior of the positioning block is fixedly connected with a motor three, the output end of the motor three is fixedly connected with a bidirectional screw, and the outer wall of the bidirectional screw is rotatably connected to the interior of the positioning block.

[0011] Furthermore, the outer wall of the bidirectional screw is threadedly connected with a sliding sleeve, the outer wall of the sliding sleeve is slidably connected to the inside of the positioning block, and the outer wall of the sliding sleeve is rotatably connected with a connecting rod 1.

[0012] Furthermore, one end of the connecting rod 1 is rotatably connected to a grinding plate, the outer wall of the grinding plate is rotatably connected to the connecting rod 2, and one end of the connecting rod 2 is rotatably connected to the outer wall of the sliding sleeve.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, firstly, the worm is driven to rotate by a motor, and the worm gear is used to drive the rotating plate to rotate, so that the sliding rod is driven to move inside the guide plate through the connecting rod, and then the clamp is driven to clamp the ship through the special-shaped frame, which solves the problem that the deviation and slippage are easy to occur during the grinding process, thereby affecting the grinding effect, and achieves stable fixation of the protective shell, so that the grinding depth and speed can be better controlled, thereby ensuring the grinding quality.

[0015] 2. In the utility model, the grinding plate is first driven by the cylinder to be positioned, and then the grinding plate is driven to fit the inner wall of the cylinder sleeve by the motor three in cooperation with the bidirectional screw, the sliding sleeve, the connecting rod one and the connecting rod two, and finally the grinding plate is driven by the motor two to grind the cylinder sleeve by the gear in cooperation with the annular rack, so that it can be applied to the grinding of cylinder sleeves of different diameters, thereby improving the grinding efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of a cylinder liner step grinding device for ship maintenance proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of a protective shell of a cylinder liner step grinding device for ship maintenance proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of a worm gear side of a cylinder liner step grinding device for ship maintenance proposed by the utility model;

[0019] Figure 4 This is a schematic diagram of the bottom structure of a protective shell of a cylinder liner step grinding device for ship maintenance proposed by the utility model;

[0020] Figure 5 The utility model is a schematic diagram of the internal structure of a positioning block of a cylinder liner step grinding device for ship maintenance.

[0021] Legend:

[0022] 1. Protective shell; 2. Motor 1; 3. Worm; 4. Worm wheel; 5. Rotating plate; 6. Connecting rod; 7. Sliding rod; 8. Guide plate; 9. Special-shaped frame; 10. Clamp; 11. Rotating disk; 12. Motor 2; 13. Gear; 14. Ring rack; 15. Cylinder; 16. Positioning block; 17. Motor 3; 18. Bidirectional screw; 19. Sliding sleeve; 20. Connecting rod 1; 21. Connecting rod 2; 22. Polishing plate. DETAILED DESCRIPTION

[0023] 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.

[0024] Reference Figure 1 - Figure 3 , the utility model provides an embodiment: a cylinder liner step grinding device for ship maintenance, comprising a protective shell 1, a motor 2 is fixedly connected inside the protective shell 1, a worm 3 is fixedly connected to the output end of the motor 2, a worm wheel 4 is rotatably connected inside the protective shell 1, the worm 3 is meshed with the worm wheel 4, a rotating plate 5 is fixedly connected to the lower surface of the worm wheel 4, the outer wall of the rotating plate 5 is rotatably connected to the inside of the protective shell 1, a connecting rod 6 is slidably connected to the inside of the rotating plate 5, the outer wall of the connecting rod 6 is fixedly connected to the sliding rod 7, a guide plate 8 is fixedly connected to the inside of the protective shell 1, the outer wall of the sliding rod 7 is slidably connected to the inside of the guide plate 8, one end of the sliding rod 7 is fixedly connected to a special-shaped frame 9, the lower surface of the special-shaped frame 9 is fixedly connected to a clamp 10, the special-shaped frame 9 and the sliding rod 7 are both slidably connected to the inside of the protective shell 1, and a rotating component is arranged inside the protective shell 1;

[0025] Specifically, first, the worm 3 is driven to rotate through the output end of the motor 2. The meshing relationship between the worm 3 and the worm wheel 4 enables the worm wheel 4 to rotate smoothly with the rotation of the worm 3, thereby ensuring the smooth operation of the entire device. On this basis, the rotating plate 5 rotates inside the protective shell 1, and moves in the arc-shaped slide groove inside the rotating plate 5 through the connecting rod 6 to transmit power to the slide bar 7. The slide bar 7 slides inside the guide plate 8 to make the movement of the slide bar 7 more stable to prevent instability during operation. Finally, the movement of the slide bar 7 drives the special-shaped frame 9 to move, thereby realizing the control of the clamp 10 so that it can clamp one end of the cylinder sleeve. Through the above steps, the fixation of the protective shell 1 is effectively achieved, so that in the subsequent grinding process, the precision loss caused by offset can be effectively prevented, thereby improving work efficiency and product quality.

[0026] Reference Figure 4 The rotating assembly includes a rotating disk 11, the outer wall of the rotating disk 11 is rotatably connected to the inside of the protective shell 1, the inside of the protective shell 1 is fixedly connected to a motor 2 12, the output end of the motor 2 12 is fixedly connected to a gear 13, the outer wall of the gear 13 is rotatably connected to the inside of the protective shell 1, the outer wall of the rotating disk 11 is fixedly connected to an annular rack 14, and the annular rack 14 is meshed with the gear 13;

[0027] Specifically, first, the output end of the motor 2 12 drives the gear 13 to rotate. Due to the unique design of the gear 13, it has a close meshing relationship with the annular rack 14. When the motor 2 12 is running, its output end drives the gear 13 to rotate. The rotation of the gear 13 is not isolated. It drives the annular rack 14 to rotate accordingly. Next, the rotation of the annular rack 14 drives the rotating disk 11 to rotate. The kinetic energy of the gear 13 and the annular rack 14 is transmitted to the rotating disk 11. Finally, the rotation of the rotating disk 11 drives the grinding plate 22 to rotate inside the cylinder liner to achieve the grinding effect.

[0028] Reference Figure 5 The interior of the rotating disk 11 is fixedly connected with a cylinder 15, the output end of the cylinder 15 is fixedly connected with a positioning block 16, the interior of the positioning block 16 is fixedly connected with a motor three 17, the output end of the motor three 17 is fixedly connected with a bidirectional screw 18, the outer wall of the bidirectional screw 18 is rotatably connected to the interior of the positioning block 16, the outer wall of the bidirectional screw 18 is threadedly connected with a sleeve 19, the outer wall of the sleeve 19 is slidably connected to the interior of the positioning block 16, the outer wall of the sleeve 19 is rotatably connected with a connecting rod 1 20, one end of the connecting rod 1 20 is rotatably connected with a grinding plate 22, the outer wall of the grinding plate 22 is rotatably connected with a connecting rod 21, and one end of the connecting rod 21 is rotatably connected to the outer wall of the sleeve 19;

[0029] Specifically, first, the cylinder 15 is used to push the positioning block 16 to move to the place where grinding is required, and then the output end of the motor three 17 inside the positioning block 16 is used to drive the bidirectional screw 18 to rotate. The rotation of the bidirectional screw 18 drives the two sleeves 19 to move relative to each other, thereby realizing the relative movement of one end of the connecting rod 1 20 and the connecting rod 2 21. The other ends of the connecting rod 1 20 and the connecting rod 2 21 are respectively connected to the grinding plate 22 and the inner wall of the cylinder sleeve. Under the drive of the bidirectional screw 18, one end of the connecting rod 1 20 and the connecting rod 2 21 moves relative to each other, so that the grinding plate 22 fits tightly against the inner wall of the cylinder sleeve.

[0030] Working principle: When the cylinder liner step grinding device for ship maintenance is needed, first place the positioning block 16 inside the cylinder liner, place the protective shell 1 at one end of the cylinder liner, and then drive the worm 3 to rotate through the output end of the motor 2 inside the protective shell 1, so that the worm wheel 4 rotates with the rotation of the worm 3, thereby driving the rotating plate 5 to rotate inside the protective shell 1 by the worm wheel 4, and then the connecting rod 6 moves in the arc-shaped slide groove inside the rotating plate 5, and then the movement of the connecting rod 6 drives the slide bar 7 to slide inside the guide plate 8, thereby driving the special-shaped frame 9 to move through the movement of the slide bar 7, and then driving the clamp 10 to clamp one end of the cylinder liner through the special-shaped frame 9, thereby fixing the protective shell 1, thereby preventing the protective shell 1 from being fixed during grinding. The positioning block 16 is now offset through the output end of the cylinder 15 to move inside the cylinder sleeve, and the bidirectional screw 18 is driven to rotate through the output end of the motor three 17 inside the positioning block 16, thereby driving the two sleeves 19 to move, and then driving one end of the connecting rod 1 20 and one end of the connecting rod 21 to move, and then the other ends of the connecting rod 1 20 and the connecting rod 2 21 push the grinding plate 22 to fit the inner wall of the cylinder sleeve, so that it can be suitable for cylinder sleeves of different diameters, and finally the gear 13 is driven to rotate through the output end of the motor 2 12 inside the protective shell 1, so that the annular rack 14 rotates with the rotation of the gear 13, thereby driving the rotating disk 11 to rotate, and then driving the grinding plate 22 to rotate inside the cylinder sleeve to grind the cylinder sleeve.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cylinder liner step grinding device for ship maintenance, comprising a protective shell (1), characterized in that: The protective shell (1) is fixedly connected to a motor 1 (2), the output end of the motor 1 (2) is fixedly connected to a worm (3), the protective shell (1) is rotatably connected to a worm wheel (4), the worm (3) meshes with the worm wheel (4), the lower surface of the worm wheel (4) is fixedly connected to a rotating plate (5), the outer wall of the rotating plate (5) is rotatably connected to the inside of the protective shell (1), the rotating plate (5) is slidably connected to a connecting rod (6), the outer wall of the connecting rod (6) is fixedly connected to a sliding rod (7), the protective shell (1) is fixedly connected to a guide plate (8), the outer wall of the sliding rod (7) is slidably connected to the inside of the guide plate (8), one end of the sliding rod (7) is fixedly connected to a special-shaped frame (9), the lower surface of the special-shaped frame (9) is fixedly connected to a clamp (10), the special-shaped frame (9) and the sliding rod (7) are both slidably connected to the inside of the protective shell (1), and a rotating component is provided inside the protective shell (1).

2. A cylinder liner step grinding device for ship maintenance according to claim 1, characterized in that: The rotating assembly comprises a rotating disk (11), the outer wall of the rotating disk (11) being rotatably connected to the interior of the protective shell (1).

3. A cylinder liner step grinding device for ship maintenance according to claim 2, characterized in that: The interior of the protective shell (1) is fixedly connected to a second motor (12); the output end of the second motor (12) is fixedly connected to a gear (13); the outer wall of the gear (13) is rotatably connected to the interior of the protective shell (1).

4. A cylinder liner step grinding device for ship maintenance according to claim 3, characterized in that: An annular rack (14) is fixedly connected to the outer wall of the rotating disk (11), and the annular rack (14) is meshed with the gear (13).

5. The cylinder liner step grinding device for ship maintenance according to claim 2, characterized in that: A cylinder (15) is fixedly connected to the interior of the rotating disk (11), and a positioning block (16) is fixedly connected to the output end of the cylinder (15).

6. A cylinder liner step grinding device for ship maintenance according to claim 5, characterized in that: The interior of the positioning block (16) is fixedly connected to a motor three (17), the output end of the motor three (17) is fixedly connected to a bidirectional screw (18), and the outer wall of the bidirectional screw (18) is rotatably connected to the interior of the positioning block (16).

7. A cylinder liner step grinding device for ship maintenance according to claim 6, characterized in that: The outer wall of the bidirectional screw (18) is threadedly connected to a sliding sleeve (19), the outer wall of the sliding sleeve (19) is slidably connected to the interior of the positioning block (16), and the outer wall of the sliding sleeve (19) is rotatably connected to a connecting rod 1 (20).

8. The cylinder liner step grinding device for ship maintenance according to claim 7, characterized in that: One end of the connecting rod 1 (20) is rotatably connected to a grinding plate (22), the outer wall of the grinding plate (22) is rotatably connected to the connecting rod 2 (21), and one end of the connecting rod 2 (21) is rotatably connected to the outer wall of the sliding sleeve (19).

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