Tooling for quick dismounting of marine diesel engine cylinder liner and method of use thereof

Abstract

The present application relates to a tool for quickly disassembling a marine diesel engine cylinder liner and a method thereof, the tool comprising a positioning assembly for connecting and fixing with the diesel engine, and at least one set of lifting assembly one, an adjusting assembly, a lifting assembly two, a driving assembly and a cleaning assembly. The positioning assembly is connected and fixed with the diesel engine, the support seat one is tightly attached to the lower end surface and the inner wall of the cylinder liner under the pressure of the adjusting assembly, when the cylinder liner top boss leaves the diesel engine, the support seat two is clamped to the inside of the limiting piece under the elastic force of the spring hinge and is limited by the limiting piece to the support seat two, so that the support seat two is tightly attached to the lower end surface and the side wall of the cylinder liner top boss, and then the driving assembly drives the lifting assembly one and the lifting assembly two to move upward together to pull out the cylinder liner. By pulling up the cylinder liner simultaneously upward, the pulling force is evenly distributed, the pulling speed is fast and the contact surface of the cylinder liner and the present application is not easy to be damaged.

Description

Technical Field

[0001] This invention belongs to the field of cylinder liner disassembly technology, specifically relating to tooling for quick disassembly of marine diesel engine cylinder liners and its usage method. Background Technology

[0002] The cylinder liner is interference-fitted to the diesel engine cylinder bore. The top of the cylinder liner usually has a boss, the lower end face of which fits tightly against the upper end face of the diesel engine. The tool used to remove the cylinder liner is usually a puller. The puller generally consists of a lifting seat, a trapezoidal expansion block and a drive assembly for moving the cylinder. The lifting seat extends into the cylinder liner and is expanded by the trapezoidal expansion block. The diameter of the lifting seat increases and it presses tightly against the lower end face and inner wall of the cylinder liner. Then, the drive assembly moves the lifting seat upward, thereby moving the cylinder liner upward to remove it.

[0003] In the prior art, when using the above-mentioned tools for disassembling cylinder liners to remove cylinder liners with bosses on top, the only way to remove them is by relying on the lifting seat to press tightly against the lower end face and inner wall of the cylinder liner. When pulling the cylinder liner, the pulling force is concentrated on the lower end face and inner wall of the cylinder liner, which can easily lead to serious damage to the lower end face and inner wall of the cylinder liner. Moreover, since the point of force is only on the lower end face and inner wall of the cylinder liner, the pulling speed needs to be slow, and the disassembly efficiency will also be low. Therefore, we provide a tooling for quickly disassembling marine diesel engine cylinder liners and its usage method. Summary of the Invention

[0004] The purpose of this invention is to provide a tooling for quick disassembly of marine diesel engine cylinder liners and a method for using it in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions:

[0006] A tooling for quick removal of marine diesel engine cylinder liners includes a positioning assembly for connecting and fixing to the diesel engine, and further includes at least one set of...

[0007] The lifting component one includes a connecting seat one and at least two support seats one connected to the connecting seat one;

[0008] An adjustment assembly is located at the bottom of a connecting seat and presses the support seat against the lower end face and inner wall of the cylinder liner respectively.

[0009] The second supporting component includes a second connecting seat connected to the first connecting seat, at least two second supporting seats connected to the second connecting seat via spring hinges, and a limiting member for limiting the second supporting seats. The second supporting seats are used to fit tightly against the lower end face and side wall of the top boss of the cylinder liner.

[0010] A drive assembly, which is connected to a positioning assembly and is used to drive lifting assembly one and lifting assembly two to move upward to pull out the cylinder liner;

[0011] A cleaning component is connected to the bottom of a support base and cleans the inner wall of the diesel engine where it contacts the cylinder liner during the movement of the support base.

[0012] As a further optimization of the present invention, the positioning component includes a support frame, at least one set of two symmetrically arranged connecting screws that pass through the support frame and are threadedly connected to the support frame, and a plurality of rotating rollers for pressing against the second support seat are rotatably connected on the support frame in a downward slope shape below the limiting member.

[0013] As a further optimization of the present invention, the adjustment component includes a fixed frame connected to the connecting seat and an adjustment member in the same number as the support seat.

[0014] The adjusting component includes a lead screw 1 rotatably connected to the fixed frame, a nut seat 1 connected to the lead screw 1 via a ball nut pair, a servo motor 1 connected to one end of the lead screw 1, a push rod connected to the nut seat 1 and slidably connected to the fixed frame, a push plate connected to one end of the push rod near the support seat 1, and a pressure sensor located on the side of the push plate near the support seat 1.

[0015] As a further optimization of the present invention, the second support base includes an outer cylinder connected to the second connecting base via a spring hinge, a spring disposed inside the outer cylinder, an inner rod slidably connected to the outer cylinder and connected to the movable end of the spring, and a slider disposed on the front and rear end faces of the outer cylinder.

[0016] The limiting component includes a vertical plate on the inner side wall of the support frame and an "L"-shaped groove inside the vertical plate for the slider to extend into and slide up and down. The lower section of the vertical plate protrudes towards the cylinder liner, and the protruding section of the vertical plate is provided with a groove for the inner rod to extend into.

[0017] As a further optimization of the present invention, the driving component includes a base, a second lead screw rotatably connected to the base and the positioning component, and a second nut seat connected to the first connecting seat and connected to the second lead screw via a ball nut pair. A plurality of guide rods for limiting the up and down movement of the first connecting seat are provided between the positioning component and the base.

[0018] The second lead screw is driven to rotate by a power component.

[0019] As a further optimization of the present invention, the cleaning component includes several pressure plates connected to the bottom of the support base, and a cleaning component connected to the support base and wrapped around the outside of the pressure plates. Several rollers are rotatably connected to the side of the pressure plate near the inner wall of the diesel engine that contacts the cylinder liner.

[0020] As a further optimization of the present invention, a clamping pad is provided on the contact surface between the support seat and the inner rod and the cylinder liner.

[0021] A method for using a tooling for quick disassembly of marine diesel engine cylinder liners, the specific steps of which are as follows:

[0022] Step 1: Place the lifting component 1 inside the cylinder liner, and connect and fix the positioning component to the diesel engine. Each of the support seats 1 is pressed against the lower end face and inner wall of the cylinder liner by the adjusting component.

[0023] Step 2: The drive assembly moves lifting assembly 1 and lifting assembly 2 upwards. The upward movement of lifting assembly 1 moves the cylinder liner upwards. When the top boss of the cylinder liner leaves the diesel engine, support seat 2 is engaged with the limiting component under the elastic force of the spring hinge. The limiting component limits support seat 2, so that support seat 2 is in close contact with the lower end face and side wall of the top boss of the cylinder liner. Then, lifting assembly 2 and lifting assembly 1 move upwards together to pull out the cylinder liner. During the upward movement of lifting assembly 1, the cleaning component moves to clean the inner wall of the diesel engine in contact with the cylinder liner.

[0024] The beneficial effects of this invention are as follows:

[0025] 1) The present invention is connected and fixed to the diesel engine through the positioning component. The first support seat is pressed against the lower end face and inner wall of the cylinder liner under the pressure of the adjusting component. When the top boss of the cylinder liner leaves the diesel engine, the second support seat is snapped into the inside of the limiting component under the elastic force of the spring hinge and the limiting component limits the second support seat so that the second support seat is pressed against the lower end face and side wall of the top boss of the cylinder liner. Then, the driving component drives the lifting component one and the lifting component two to move upward together to pull out the cylinder liner. By lifting the cylinder liner upward at the same time, the lifting force is evenly distributed from top to bottom, the lifting speed is fast and it is not easy to damage the contact surface between the cylinder liner and the present invention.

[0026] 2) In this invention, when the support seat moves, the cleaning component can move together. The pressure plate presses the cleaning component against the inner wall of the diesel engine, so that during the movement, the stains on the inner wall of the diesel engine can be wiped off. The cylinder liner is disassembled and the inner wall of the diesel engine is cleaned at the same time, saving time and making it easier to install a new cylinder liner later.

[0027] 3) The present invention can drive multiple lead screws to rotate simultaneously by a power component, thereby simultaneously driving multiple sets of one-to-one corresponding lifting components, cleaning components, and lifting components to move upwards at the same time, thereby disassembling multiple cylinder liners at the same time, so as to improve the efficiency of cylinder liner disassembly. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0029] Figure 2 This is a schematic diagram of the structure of the second supporting component of the present invention.

[0030] Figure 3 This is a structural schematic diagram of the lifting component and the adjusting component of the present invention.

[0031] Figure 4 This is the invention Figure 3 Enlarged view of the structure of part A.

[0032] Figure 5 This is a cross-sectional view of the outer cylinder and inner rod of the present invention.

[0033] Figure 6 This is a top sectional view of the compression pad of the present invention.

[0034] In the diagram: 1. Lifting component one; 11. Connecting seat one; 12. Support seat one; 2. Adjusting component; 21. Fixing frame; 22. Lead screw one; 23. Nut seat one; 24. Servo motor one; 25. Push rod; 26. Push plate; 27. Pressure sensor; 3. Positioning component; 31. Support frame; 32. Connecting screw; 33. Rotating roller; 4. Drive component; 41. Base; 42. Lead screw two; 43. Nut seat two; 44. Guide rod; 45. Servo motor two; 46. Synchronizer; 5. Cleaning component; 51. Cleaning component; 52. Pressure plate; 53. Roller; 6. Lifting component two; 61. Connecting seat two; 62. Outer cylinder; 63. Spring; 64. Inner rod; 65. Slider; 66. Vertical plate; 67. Slide groove; 7. Pressure pad. Detailed Implementation

[0035] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0036] like Figure 1-6 As shown, a tooling for quickly removing cylinder liners of a marine diesel engine includes a positioning assembly 3, which is used to connect and fix to the diesel engine, and also includes at least one set of...

[0037] The lifting component 1 includes a connecting seat 11 and at least two support seats 12 connected to the connecting seat 11.

[0038] Adjustment component 2, which is located at the bottom of connecting seat 11 and presses support seat 12 against the lower end face and inner wall of cylinder liner respectively;

[0039] The second supporting component 6 includes a second supporting component 61 connected to the first supporting component 11, at least two second supporting components 61 connected to the second supporting component 61 by spring hinges, and a limiting member for limiting the second supporting component 6. The second supporting component 6 is used to fit tightly against the lower end face and side wall of the top boss of the cylinder liner.

[0040] Drive component 4, which is connected to positioning component 3 and is used to drive lifting component 1 and lifting component 2 6 to move upward to pull out cylinder liner;

[0041] Cleaning component 5 is connected to the bottom of support base 12 and cleans the inner wall of the diesel engine in contact with the cylinder liner during the movement of support base 12.

[0042] The positioning component 3 includes a support frame 31 and at least one set of two symmetrically arranged connecting screws 32 that pass through the support frame 31 and are threadedly connected to the support frame 31. The support frame 31 is located below the limiting member, has a downward slope, and is rotatably connected to a plurality of rotating rollers 33 for pressing against the second support seat.

[0043] The adjustment assembly 2 includes a fixed frame 21 connected to the connecting seat 11 and an adjustment component in the same number as the support seat 12;

[0044] The adjusting component includes a lead screw 22 rotatably connected to the fixed frame 21, a nut seat 23 connected to the lead screw 22 via a ball nut pair, a servo motor 24 connected to one end of the lead screw 22, a push rod 25 connected to the nut seat 23 and slidably connected to the fixed frame 21, a push plate 26 connected to the end of the push rod 25 near the support base 12, and a pressure sensor 27 disposed on the side of the push plate 26 near the support base 12.

[0045] The second support base includes an outer cylinder 62 connected to the second connecting base 61 via a spring hinge, a spring 63 disposed inside the outer cylinder 62, an inner rod 64 slidably connected to the outer cylinder 62 and connected to the movable end of the spring 63, and a slider 65 disposed on the front and rear end faces of the outer cylinder 62.

[0046] The limiting component includes a vertical plate 66 disposed on the inner side wall of the support frame 31, and an "L"-shaped groove 67 opened inside the vertical plate 66 for the slider 65 to extend into and slide up and down. The lower section of the vertical plate 66 protrudes towards the cylinder liner, and the protruding section of the vertical plate 66 is provided with a 68 for the inner rod 64 to extend into.

[0047] It should be noted that the spring 63 is designed so that during the downward movement of the outer cylinder 62 and the inner rod 64, the spring 63 can be compressed under the pressure of the rotating roller 33, which can shorten the overall length of the outer cylinder 62 and the inner rod 64. When the inner rod 64 lifts the top boss of the cylinder liner, the length of the inner rod 64 extending out of the outer cylinder 62 is the maximum extension length. At this time, the outer cylinder 62 limits the inner rod 64.

[0048] The drive assembly 4 includes a base 41, a second lead screw 42 rotatably connected to the base 41 and the positioning assembly 3, and a second nut seat 43 connected to the first connecting seat 11 and connected to the second lead screw 42 through a ball nut pair. A plurality of guide rods 44 are provided between the positioning assembly 3 and the base 41 for limiting the up and down movement of the first connecting seat 11.

[0049] The lead screw 42 is driven to rotate by a power component.

[0050] When the lifting component 1, the adjusting component 2, the lifting component 2 6, the driving component 4, and the cleaning component 5 are all a set, the power unit is the servo motor 2 45 connected to the top of the lead screw 2 42, and the lead screw 2 42 is rotated by the servo motor 2 45.

[0051] When the lifting component 1, adjusting component 2, lifting component 6, driving component 4, and cleaning component 5 are in one-to-one correspondence and there are multiple sets, the power component is a servo motor 45 connected to the top of one of the lead screws 42, and several synchronization components 46 located between two adjacent lead screws 42. The synchronization component 46 includes two synchronous pulleys and a synchronous belt located between the two synchronous pulleys.

[0052] The cleaning assembly 5 includes several pressure plates 52 connected to the bottom of the support base 12, and a cleaning component 51 connected to the support base 12 and wrapped around the pressure plates 52. Several rollers 53 are rotatably connected to the side of the pressure plate 52 near the inner wall of the diesel engine that contacts the cylinder liner. When the support base 12 moves, it will drive the cleaning component 51, the pressure plate 52, and the rollers 53 to move together. The pressure plate 52 presses the cleaning component 51 against the inner wall of the diesel engine, so that the dirt on the inner wall of the diesel engine can be wiped off during the movement. The rollers 53 are set to facilitate the movement of the pressure plate 52 with the support base 12.

[0053] It should be noted that, in this embodiment, the cleaning component 51 can be either a cleaning cloth or a sponge pad.

[0054] The contact surfaces of the support base 12 and the inner rod 64 with the cylinder liner are all provided with clamping pads 7. It should be noted that, in this embodiment, the clamping pads 7 are as follows: Figure 6 As shown, the center of the contact surface between the clamping pad 7 and the diesel engine is concave. After being pressed, the gas is discharged, and the clamping pad 7 is tightly attached to the cylinder liner and adsorbed stably, which can play a certain protective role for the cylinder liner.

[0055] A method for using a tooling for quick disassembly of marine diesel engine cylinder liners, the specific steps of which are as follows:

[0056] Step 1: Place the lifting component 1 inside the cylinder liner, support the base 41 on the working platform where the diesel engine is placed, place the support frame 31 above the cylinder liner and contact the upper end face of the diesel engine, and then connect and fix the support frame 31 to the diesel engine through the connecting screw 32. Each of the support seats 12 is pressed against the lower end face and inner wall of the cylinder liner under the pressure of the adjusting component 2.

[0057] Specifically, servo motor 24 is started, which drives lead screw 22 to rotate. The rotation of lead screw 22 causes nut seat 23, push rod 25 and push plate 26 to move together along lead screw 22. Push plate 26 pushes the corresponding support seat 12 to open outward. The pressure value detected by pressure sensor 27 can be used to determine whether support seat 12 is in close contact with the lower end face and inner wall of cylinder liner. When the pressure value detected by pressure sensor 27 tends to be stable, it means that support seat 12 has been in close contact with the lower end face and inner wall of cylinder liner under the pressure of push plate 26, and servo motor 24 can be turned off.

[0058] Step 2: The power component drives the lead screw 42 to rotate. When the lead screw 42 rotates, the nut seat 43 drives the lifting assembly 1 and the lifting assembly 6 to move upward. During the upward movement of the lifting assembly 1, the cylinder liner is moved upward through the support seat 12. When the top boss of the cylinder liner leaves the diesel engine, the support seat 2 is engaged with the limiting component under the elastic force of the spring hinge. The limiting component limits the support seat 2 so that the support seat 2 is close to the lower end face and side wall of the top boss of the cylinder liner. Then, the cylinder liner is pulled out by the lifting assembly 6 and the lifting assembly 1 moving upward together. During the upward movement of the lifting assembly 1, the cleaning component 5 moves to clean the inner wall of the diesel engine in contact with the cylinder liner.

[0059] Specifically, during the upward movement of the outer cylinder 62, after passing the protrusion at the lower section of the vertical plate 66, as... Figure 2 As shown, the outer cylinder 62 extends from the horizontal section at the bottom of the slide groove 67 into the vertical section of the slide groove 67 under the elastic force of the spring hinge. The vertical section of the slide groove 67 limits the slider 65, the outer cylinder 62, and the inner rod 64, so that the inner rod 64 can keep in close contact with the lower end face and side wall of the top boss of the cylinder liner. When the lifting assembly 2 6 and the lifting assembly 1 1 continue to move upward, the lower end face of the cylinder liner can be lifted by the support seat 12, and the inner rod 64 lifts the top boss of the cylinder liner, thereby driving the cylinder liner to move upward together and pulling out the cylinder liner.

[0060] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A tooling for quickly removing cylinder liners from marine diesel engines, characterized in that: It includes a positioning component (3) for connecting and fixing to the diesel engine, and also includes at least one set of The lifting component (1) includes a connecting seat (11) and at least two support seats (12) connected to the connecting seat (11). Adjustment component (2), the adjustment component (2) is located at the bottom of the connecting seat (11) and presses the support seat (12) against the lower end face and inner wall of the cylinder liner respectively; The second lifting component (6) includes a second connecting seat (61) connected to the first connecting seat (11), at least two second support seats connected to the second connecting seat (61) by spring hinges, and a limiting member for limiting the second support seat. The second support seat is used to fit tightly against the lower end face and side wall of the top boss of the cylinder liner. Drive component (4), which is connected to positioning component (3) and used to drive lifting component one (1) and lifting component two (6) to move upward to pull out cylinder liner; Cleaning component (5), which is connected to the bottom of support base (12) and cleans the inner wall of the diesel engine in contact with the cylinder liner during the movement of support base (12); The positioning component (3) includes a support frame (31) and at least one set of two symmetrically arranged connecting screws (32) that pass through the support frame (31) and are threadedly connected to the support frame (31). The support frame (31) is located below the limiting member and has a number of rotating rollers (33) for pressing against the second support seat. The adjustment assembly (2) includes a fixed frame (21) connected to the connecting seat (11) and an adjustment component in the same number as the support seat (12); The adjusting component includes a lead screw (22) rotatably connected to the fixed frame (21), a nut seat (23) connected to the lead screw (22) via a ball nut pair, a servo motor (24) connected to one end of the lead screw (22), a push rod (25) connected to the nut seat (23) and slidably connected to the fixed frame (21), a push plate (26) connected to one end of the push rod (25) near the support seat (12), and a pressure sensor (27) disposed on the side of the push plate (26) near the support seat (12). The second support base includes an outer cylinder (62) connected to the second connecting base (61) via a spring hinge, a spring (63) disposed inside the outer cylinder (62), an inner rod (64) slidably connected to the outer cylinder (62) and connected to the movable end of the spring (63), and a slider (65) disposed on the front and rear end faces of the outer cylinder (62). The limiting component includes a vertical plate (66) provided on the inner side wall of the support frame (31) and an "L"-shaped groove (67) opened inside the vertical plate (66) for the slider (65) to extend into and slide up and down. The lower section of the vertical plate (66) protrudes towards the cylinder liner, and the protruding section of the vertical plate (66) is provided with a (68) for the inner rod (64) to extend into.

2. The tooling for quick disassembly of marine diesel engine cylinder liners according to claim 1, characterized in that: The drive assembly (4) includes a base (41), a second lead screw (42) rotatably connected to the base (41) and the positioning assembly (3), and a second nut seat (43) connected to the first connecting seat (11) and connected to the second lead screw (42) through a ball nut pair. A plurality of guide rods (44) are provided between the positioning assembly (3) and the base (41) for limiting the up and down movement of the first connecting seat (11). The second lead screw (42) is driven to rotate by a power component.

3. The tooling for quick disassembly of marine diesel engine cylinder liners according to claim 1, characterized in that: The cleaning component (5) includes several pressure plates (52) connected to the bottom of the support base (12) and a cleaning component (51) connected to the support base (12) and wrapped around the pressure plate (52). Several rollers (53) are rotatably connected to the side of the pressure plate (52) near the inner wall of the diesel engine that contacts the cylinder liner.

4. The tooling for quick disassembly of marine diesel engine cylinder liners according to claim 1, characterized in that: The support base (12) and the inner rod (64) are both provided with pressure pads (7) on their contact surfaces with the cylinder liner.

5. A method of using the tooling for quick disassembly of marine diesel engine cylinder liners as described in any one of claims 1-4, characterized in that: The specific steps are as follows: Step 1: Place the lifting component (1) inside the cylinder liner and connect and fix the positioning component (3) to the diesel engine. Each of the support seats (12) is pressed against the lower end face and inner wall of the cylinder liner by the adjusting component (2). Step 2: Drive the lifting assembly 1 (1) and lifting assembly 2 (6) upward by driving the drive assembly (4). When the top boss of the cylinder liner leaves the diesel engine, the support seat 2 is engaged with the inside of the limiting component under the elastic force of the spring hinge and the limiting component limits the support seat 2 so that the support seat 2 is close to the lower end face and side wall of the top boss of the cylinder liner. Then, the cylinder liner is pulled out by lifting assembly 2 (6) and lifting assembly 1 (1) moving upward together. During the upward movement of lifting assembly 1 (1), the cleaning assembly (5) is moved to clean the inner wall of the diesel engine in contact with the cylinder liner.

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