Auxiliary device for assembling wear-resistant ring of cylinder liner of marine diesel engine and its use method

Abstract

The present invention discloses an auxiliary device for assembling a wear-resistant ring of a marine diesel engine cylinder liner, comprising a bracket, a lifting device provided on the bracket, a chuck with claws for clamping the cylinder liner provided at the output end of the lifting device, a wear-resistant ring assembly provided above the chuck with claws, the wear-resistant ring assembly being detachably mounted on the bracket, and a toggle provided between the wear-resistant ring assembly and the chuck with claws. The present invention effectively avoids irregular deformation or damage of the cylinder liner wear-resistant ring by sleeve-mounting the wear-resistant ring on the wear-resistant ring assembly and uniformly enlarging the inner diameter of the wear-resistant ring through the wear-resistant ring assembly, without affecting subsequent use by the user. A toggle is also provided, and after the inner diameter of the wear-resistant ring is enlarged, the wear-resistant ring is toggled by the toggle to disengage the wear-resistant ring from the sleeve of the wear-resistant ring assembly and to be mounted on the outer wall of the cylinder liner, thereby saving manual labor intensity.

Description

Technical Field

[0001] The invention relates to the technical field of diesel engine cylinder liner processing, in particular to an auxiliary device for assembling a wear-resistant ring of a marine diesel engine cylinder liner and a use method thereof. Background Art

[0002] The diesel engine cylinder liner is a cylindrical part placed in the cylinder block hole of the engine body and is pressed and fixed by the cylinder head. During processing, the cylinder liner is usually installed with a wear-resistant ring on the outer wall of the piston groove on its outer wall. During the installation process of the diesel engine cylinder liner wear-resistant ring, it is usually manually enlarged to make the inner diameter of the wear-resistant ring larger so that it can be sleeved on the outer wall of the cylinder liner. On the one hand, this method is prone to irregular deformation and damage of the cylinder liner wear-resistant ring because the manual labor cannot accurately control the pulling force on the wear-resistant ring, thereby reducing the fit between the wear-resistant ring and the cylinder liner, which is not conducive to the user's subsequent use. On the other hand, the frequent manual pulling of the wear-resistant ring consumes a lot of labor intensity. For this reason, we propose an auxiliary device and a method for using the wear-resistant ring assembly of a marine diesel engine cylinder liner. Summary of the Invention

[0003] The object of the present invention is to provide an auxiliary device for assembling a wear-resistant ring of a cylinder liner of a marine diesel engine and a method for using the same, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] An auxiliary device for assembling a wear-resistant ring of a marine diesel engine cylinder liner comprises a bracket, a lifting device is provided on the bracket, a chuck with claws for clamping the cylinder liner is provided at the output end of the lifting device, a wear-resistant ring assembly is provided above the chuck with claws, the wear-resistant ring assembly is detachably mounted on the bracket, and a toggle is provided between the wear-resistant ring assembly and the chuck with claws;

[0006] The wear-resistant ring assembly is used to expand the diameter of the wear-resistant ring, and the toggle is used to toggle the wear-resistant ring from the wear-resistant ring assembly to be sleeved on the outer wall of the cylinder liner after the diameter of the wear-resistant ring is expanded.

[0007] The cam is provided with a plurality of movable slots at the bottom of the wear-resistant ring sleeve, and the movable slots are provided with a plurality of movable slots at the bottom of the wear-resistant ring sleeve.

[0008] The rotating disk is driven by the rotating device to push the contact rod 1 through the driving block, so that the multiple groups of arc blocks move outward synchronously.

[0009] A further improvement is that the toggle member includes a bottom ring provided on the bracket and located on the outer ring of the lifting device, an L-shaped frame is provided on the inner side of the bottom ring at a position corresponding to the arc block, the L-shaped frame is provided with a bottom limiting portion that fits with the bottom of the arc block, an arc-shaped support plate is provided on the outer side of the L-shaped frame, and a toggle portion is provided on the arc-shaped support plate at a position corresponding to the arc block.

[0010] A further improvement is that the bottom limiting portion includes a fan-shaped bottom plate that fits with the bottom of the arc block, the fan-shaped bottom plate corresponds one-to-one to the claws on the claw chuck, and the fan-shaped bottom plate and the claws on the claw chuck are connected by a telescopic rod, the inner side of the fan-shaped bottom plate and the inner side of the claws on the claw chuck are in the same vertical plane, the bottom of the fan-shaped bottom plate is movably passed through the L-shaped frame through a T-shaped guide rod, and the T-shaped guide rod is provided with a reset spring for driving the fan-shaped bottom plate to reset, the bottom of the fan-shaped bottom plate is provided with a permanent magnet, and the top of the L-shaped frame is provided with an electromagnetic block that is energized to attract the permanent magnet.

[0011] A further improvement is that the toggle portion includes a movable plate vertically movably inserted on the arc-shaped support plate, the movable plate is connected to the arc-shaped support plate by a spring, a toggle block for contacting the outer wall of the arc-shaped block is horizontally inserted above the movable plate, the toggle block is located above the fan-shaped bottom plate, a permanent magnet block is provided at the bottom of the movable plate, and a ring-shaped electromagnetic member is provided on the top of the bottom ring for electrically adsorbing the permanent magnet block;

[0012] One group of the toggle blocks is provided with a detection component that drives the annular electromagnetic component and the electromagnetic block to work.

[0013] A further improvement is that the detection member includes a through-hole opened at the inner end of the toggle block, the inner wall of the outer end of the through-hole is provided with a conductive sheet 1, a conductive sheet 2 cooperating with the conductive sheet 1 is slidably provided in the through-hole, a contact rod 2 is provided on the side of the conductive sheet 2 away from the conductive sheet 1, the contact rod 2 movably passes through the inner end of the toggle block and extends to the outside of the toggle block, the outer wall of the contact rod 2 is sleeved with a spring 2 for driving reset, an adjusting screw is threadedly inserted on the movable plate, and the inner end of the adjusting screw is rotatably connected to the toggle block through a bearing;

[0014] When the outer side of the arc block fits with the outer side of the toggle block, the second conductive sheet fits with the first conductive sheet, the second conductive sheet is electrically connected to the external power supply, and the first conductive sheet is electrically connected to the annular electromagnetic component and the electromagnetic block.

[0015] A further improvement is that a gear ring is sleeved on the outer side of the annular electromagnetic component, and the gear ring is driven to rotate by a driving device provided on the bracket. One end of an L-shaped connecting arm is rotatably connected to the gear ring through a mounting seat and a damping shaft, and the other end of the L-shaped connecting arm is connected to a liquid storage seat, in which lubricating liquid is stored. A smear roller is embedded on the side of the liquid storage seat facing the arc block, and the liquid storage seat is located on the inner side of the toggle block;

[0016] The smear roller rolls along with the gear ring when it moves along the circumference of the wear-resistant ring sleeve, and smears the lubricating liquid in the liquid storage seat onto the outer wall of the arc block.

[0017] A further improvement is that the connecting part includes a slider arranged on the wear-resistant ring sleeve, the bracket is provided with a sliding opening for the slider to slide, the top of the slider is connected to the connecting plate through a support rod, the bottom of the connecting plate is provided with a clamping column, and the top of the bracket is provided with a clamping hole for the clamping column to be inserted.

[0018] A further improvement is that a limiting plug plate is movably inserted into the outer wall of the wear-resistant ring sleeve at a position above the arc block.

[0019] The method for using the auxiliary device for assembling the wear-resistant ring of the cylinder liner of a marine diesel engine, using the above-mentioned auxiliary device, comprises the following steps:

[0020] S1: By rotating the L-shaped connecting arm, the smear roller contacts the outer wall of the arc block, and at the same time, the driving device is turned on. The driving device drives the gear ring to drive the L-shaped connecting arm to perform circular motion. The smear roller rolls along the gear ring along the wear-resistant ring sleeve cylinder as it moves in a circular motion, smearing the lubricating liquid in the liquid reservoir on the outer wall of the arc block, and the cylinder sleeve to be sleeved with the wear-resistant ring is placed on the chuck with claws, and the claws on the chuck with claws contact the outer wall of the cylinder sleeve. At this time, the inner wall of the sector bottom plate also contacts the outer wall of the cylinder sleeve, and the wear-resistant ring is sleeved on the outer wall of the wear-resistant ring sleeve cylinder. The wear-resistant ring falls downward to the outer bottom end of the arc block and is placed on the sector bottom plate under the lubrication of its own gravity and the lubricating liquid;

[0021] S2: Turn on the rotating device, which drives the rotating disk through the driving block to move the multiple sets of arc blocks outward synchronously to expand the diameter of the wear-resistant ring. The lifting device drives the chuck with claws to move upward so that the wear-resistant ring groove on the outer wall of the cylinder liner is aligned with the sector-shaped bottom plate.

[0022] S3: When the arc block moves to fit with the inner end of the toggle block, the rotating device is turned off. At this time, the conductive sheet 1 and the conductive sheet 2 are in contact, so that the annular electromagnetic component and the electromagnetic block are energized. The electromagnetic block is energized to attract the fan-shaped bottom plate downward, so that the fan-shaped bottom plate is separated from the arc block. At the same time, the annular electromagnetic component moves the movable plate downward, and the movable plate moves the wear-resistant ring on the outer wall of the arc block downward through the toggle block, so that the wear-resistant ring is installed in the wear-resistant ring groove of the cylinder liner from the position between the arc block and the fan-shaped bottom plate.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present invention arranges the wear-resistant ring on the wear-resistant ring assembly part and uniformly expands the inner diameter of the wear-resistant ring through the wear-resistant ring assembly part, thereby effectively avoiding irregular deformation or damage of the wear-resistant ring of the cylinder liner and not affecting the subsequent use of the user. A toggle part is also provided. After the inner diameter of the wear-resistant ring is expanded, the toggle part is used to toggle the wear-resistant ring from the wear-resistant ring assembly part and to be mounted on the outer wall of the cylinder liner, thereby saving manual labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the present invention;

[0026] Figure 2 This is a schematic structural diagram of the wear-resistant ring assembly in the present invention;

[0027] Figure 3 This is a schematic diagram of the wear-resistant ring sleeve structure of the present invention when viewed from above;

[0028] Figure 4 Schematic diagram of the structure of the toggle member in the present invention;

[0029] Figure 5 For the present invention Figure 4 A magnified schematic diagram of structure A in .

[0030] In the figure: 1. bracket; 101. slide; 2. lifting device; 3. chuck with claws; 4. wear-resistant ring sleeve; 5. slider; 6. connecting plate; 7. rotating device; 8. movable notch; 9. rotating disk; 10. driving block; 11. arc block; 12. connecting arm; 13. elastic member; 14. contact rod 1; 15. limit plug plate; 16. telescopic rod; 17. fan-shaped bottom plate; 18. bottom ring; 19. L-shaped frame; 20. electromagnetic block; 21. T-shaped guide rod; 22. arc support plate; 23. movable plate; 24. spring 1; 25. annular electromagnetic member; 26. permanent magnet block; 27. toggle block; 28. adjusting screw; 29. ​​conductive sheet 1; 30. conductive sheet 2; 31. contact rod 2; 32. spring 2; 33. gear ring; 34. L-shaped connecting arm; 35. liquid storage seat; 36. smear roller. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Example 1

[0033] Please see the attached Figure 1 The auxiliary device for assembling the wear-resistant ring of the cylinder liner of a marine diesel engine includes a bracket 1, which is U-shaped. A lifting device 2 is provided on the bracket 1, such as a hydraulic telescopic device or a cylinder telescopic device. The output end of the lifting device 2 is provided with a chuck 3 with claws for clamping the cylinder liner, such as a three-jaw chuck or a four-jaw chuck. A wear-resistant ring assembly is provided above the chuck 3 with claws. The wear-resistant ring assembly is detachably provided on the bracket 1, and a toggle is provided between the wear-resistant ring assembly and the chuck 3 with claws.

[0034] The wear-resistant ring assembly is used to enlarge the diameter of the wear-resistant ring, and the toggle piece is used to toggle the wear-resistant ring from the wear-resistant ring assembly to be sleeved on the outer wall of the cylinder sleeve after the diameter of the wear-resistant ring is enlarged.

[0035] Please see the attached Figure 2-Figure 3As a preference, the wear-resistant ring assembly of this embodiment includes a connector detachably connected to the bracket 1, one end of the connector is connected to a wear-resistant ring sleeve cylinder 4 for sleeved with the wear-resistant ring, the outer diameter of the wear-resistant ring sleeve cylinder 4 is smaller than the inner diameter of the wear-resistant ring, through this arrangement, the wear-resistant ring can fall downward to the bottom of the wear-resistant ring sleeve cylinder 4 after being sleeved on the wear-resistant ring sleeve cylinder 4, the bottom of the wear-resistant ring sleeve cylinder 4 is provided with a groove, the bottom outer wall of the wear-resistant ring sleeve cylinder 4 is provided with multiple groups of movable notches 8 in a ring array, an arc block 11 is movably provided in the movable notch 8, both sides of the arc block 11 are connected to connecting arms 12, the connecting arm 12 is away from the end of the arc block 11 and slides with the bottom of the wear-resistant ring sleeve cylinder 4 The wear-resistant ring sleeve 4 is connected, and the connecting arm 12 is connected to the protrusion fixed at the bottom of the wear-resistant ring sleeve 4 through an elastic member 13. The elastic member 13 is used to drive the moving arc block 11 to reset inward subsequently; a rotating device 7 is provided in the wear-resistant ring sleeve 4, such as a micro motor (or motor) and a micro reducer; the output end of the rotating device 7 extends into the groove and is connected to a rotating disk 9, and the circumferential outer wall of the rotating disk 9 is provided with multiple groups of driving blocks 10, and the driving blocks 10 correspond to the arc blocks 11 one by one. A contact rod 14 cooperating with the driving block 10 is provided on the inner side of the arc block 11. The rotating disk 9 is driven by the rotating device 7 to push the contact rod 14 through the driving block 10, so that the multiple groups of arc blocks 11 move outward synchronously; from the attached Figure 3 It can be seen that, specifically, the driving block 10 adopts an arc-shaped edge to cooperate with the ball embedded in the end of the contact rod 14. The distance between the arc-shaped edge on the driving block 10 and the rotating disk 9 gradually increases in the counterclockwise direction of the rotating disk 9. When the rotating disk 9 rotates clockwise, the driving block 10 pushes the contact rod 14 to drive the arc-shaped block 11 to move gradually outward. This method can evenly expand the diameter of the wear-resistant ring and effectively prevent the wear-resistant ring from being deformed due to excessive local stress.

[0036] It should be noted that the number of arc blocks 11 corresponds to the number of jaws on the jaw chuck 3 , that is, if the jaw chuck 3 is a three-jaw chuck, then the number of arc blocks 11 is three groups.

[0037] Please see the attached Figure 4 As a preference, the toggle member of this embodiment includes a bottom ring 18 provided on the bracket 1 and located on the outer ring of the lifting device 2, and an L-shaped frame 19 is provided on the inner side of the bottom ring 18 at a position corresponding to the arc block 11. The L-shaped frame 19 is provided with a bottom limiting portion that fits with the bottom of the arc block 11 to prevent the wear-resistant ring mounted on the wear-resistant ring sleeve tube 4 from falling out of the wear-resistant ring sleeve tube 4; an arc-shaped support plate 22 is provided on the outer side of the L-shaped frame 19, and a toggle portion is provided on the arc-shaped support plate 22 at a position corresponding to the arc block 11, which is used to toggle the wear-resistant ring with the enlarged inner diameter out of the wear-resistant ring sleeve tube 4.

[0038] As a preference, the bottom limiting portion of this embodiment includes a fan-shaped bottom plate 17 that fits with the bottom of the arc block 11. It should be noted that the number of fan-shaped bottom plates 17 corresponds to the number of arc blocks 11, that is, if there are three groups of arc blocks 11, then the number of fan-shaped bottom plates 17 is three; the fan-shaped bottom plates 17 correspond one to one with the claws on the claw chuck 3, and the fan-shaped bottom plates 17 are connected to the claws on the claw chuck 3 by a telescopic rod 16, so that when the claw chuck 3 drives the cylinder sleeve upward, it can be normally extended and retracted through the telescopic rod 16; the inner side of the fan-shaped bottom plate 17 and the inner side of the claws on the claw chuck 3 are in the same vertical plane, that is, when the claws on the claw chuck 3 are in contact with the inner wall of the cylinder sleeve, the fan-shaped bottom plate 17 is in the same vertical plane. The inner side of the bottom plate 17 is also in contact with the inner wall of the cylinder liner; the bottom of the fan-shaped bottom plate 17 is movable through the L-shaped frame 19 through a T-shaped guide rod 21, and the T-shaped guide rod 21 is provided with a reset spring for driving the fan-shaped bottom plate 17 to reset. A permanent magnet is provided at the bottom of the fan-shaped bottom plate 17, and an electromagnetic block 20 is provided on the top of the L-shaped frame 19 for energizing and adsorbing the permanent magnet. The electromagnetic block 20 adsorbs the permanent magnet so that the fan-shaped bottom plate 17 squeezes the reset spring downward, so that the fan-shaped bottom plate 17 is separated from the bottom of the arc block 11, so that the wear-resistant ring is sleeved on the outer wall of the cylinder liner between the fan-shaped bottom plate 17 and the arc block 11. When the electromagnetic block 20 stops supplying power, the fan-shaped bottom plate 17 is reset upward under the action of the reset spring.

[0039] Preferably, the toggle portion of this embodiment includes a movable plate 23 vertically movably inserted on the arc-shaped support plate 22, and the movable plate 23 is connected to the arc-shaped support plate 22 by a spring 1 24. The spring 1 24 is used to drive the movable plate 23 to reset. A toggle block 27 for contacting the outer wall of the arc block 11 is horizontally inserted above the movable plate 23. The toggle block 27 is above the fan-shaped bottom plate 17. A permanent magnet block 26 is provided at the bottom of the movable plate 23, and an annular electromagnetic member 25 for electrically adsorbing the permanent magnet block 26 is provided at the top of the bottom ring 18. By opening the annular electromagnetic member 25, the annular electromagnetic member 25 adsorbs the permanent magnet block 26 to move the movable plate 23 downward, and the movable plate 23 drives the toggle block 27 downward along the arc block 11, toggling the wear-resistant ring of the outer wall of the arc block 11 downward;

[0040] One of the groups of toggle blocks 27 is provided with a detection member that drives the annular electromagnetic member 25 and the electromagnetic block 20 to work.

[0041] Please see the attached Figure 5The outer wall of the contact rod 31 is provided with a spring 22 for driving the reset. One end of the spring 22 is connected to the inner wall of the through-hole, and the other end is connected to the conductive sheet 23. An adjusting screw 28 is threadedly inserted on the movable plate 23. The inner end of the adjusting screw 28 is rotatably connected to the toggle block 27 through a bearing. The outer end of the adjusting screw 28 is provided with a driving handwheel for the user to rotate. The adjusting screw 28 is rotated to adjust the position of the toggle block 27 and the arc block 11, thereby controlling the inner diameter of the wear-resistant ring and preventing the inner diameter of the wear-resistant ring from being damaged due to excessive expansion.

[0042] When the outer side of the arc block 11 fits with the outer side of the toggle block 27 , the conductive sheet 2 30 fits with the conductive sheet 1 29 , the conductive sheet 2 30 is electrically connected to the external power supply, and the conductive sheet 1 29 is electrically connected to the annular electromagnetic component 25 and the electromagnetic block 20 .

[0043] It should be noted that, since the wear-resistant ring will inevitably fit tightly against the outside of the arc block 11 after the inner diameter is enlarged, it needs to be pushed downward by the pushing portion.

[0044] The outer side of the annular electromagnetic member 25 of this embodiment is preferably provided with a gear ring 33, which is driven to rotate by a driving device provided on the bracket 1, such as a motor, a reducer and a gear. The gear ring 33 is rotatably connected to one end of an L-shaped connecting arm 34 through a mounting seat and a damping shaft, and the other end of the L-shaped connecting arm 34 is connected to a liquid reservoir seat 35, in which lubricating liquid is stored. A smear roller 36 is embedded in the liquid reservoir seat 35 on the side facing the arc block 11, and part of the outer wall of the smear roller 36 is placed in the liquid reservoir seat 35. When the smear roller 36 rotates, the lubricating liquid in the liquid reservoir seat 35 adheres to the outer wall of the smear roller 36. Through this arrangement, on the one hand, it is convenient to rotate the L-shaped connecting arm 34 so that the smear roller 36 contacts the outer wall of the arc block 11. On the other hand, when not in use, the L-shaped connecting arm 34 can be rotated so that the smear roller 36 is separated from the arc block 11 without affecting the wear-resistant ring sleeve arranged on the outer wall of the cylinder sleeve. The liquid reservoir seat 35 is located on the inner side of the toggle block 27;

[0045] The smear roller 36 rolls along with the gear ring 33 when it moves in a circular motion along the wear-resistant ring sleeve 4 , and smears the lubricating liquid in the liquid storage seat 35 onto the outer wall of the arc block 11 .

[0046] Preferably, the connecting member of this embodiment includes a slider 5 provided on the wear-resistant ring sleeve 4, a sliding port 101 for sliding the slider 5 is opened on the bracket 1, the top of the slider 5 is connected to the connecting plate 6 through a support rod, the bottom of the connecting plate 6 is provided with a card column, and the top of the bracket 1 is provided with a card hole for inserting the card column. Through this arrangement, it is convenient to remove the wear-resistant ring sleeve 4 from the bracket 1, thereby facilitating the assembly of the wear-resistant ring from the top of the wear-resistant ring sleeve 4;

[0047] Preferably, the outer wall of the wear-resistant ring sleeve tube 4 of this embodiment is movably provided with a limit plate 15 at a position above the arc block 11. Through this arrangement, it is convenient to sleeve multiple groups of wear-resistant rings on the wear-resistant ring sleeve tube 4. After sleeveing ​​a group of wear-resistant rings, the limit plate 15 is pulled out, so that a wear-resistant ring originally sleeved on the wear-resistant ring sleeve tube 4 can fall down to the arc block 11.

[0048] The method for using the auxiliary device for assembling the wear-resistant ring of the cylinder liner of a marine diesel engine, using the above-mentioned auxiliary device, comprises the following steps:

[0049] S1: By rotating the L-shaped connecting arm 34, the smear roller 36 contacts the outer wall of the arc block 11, and at the same time, the driving device is turned on. The driving device drives the gear ring 33 to drive the L-shaped connecting arm 34 to perform a circular motion. The smear roller 36 rolls along the gear ring 33 as it moves along the wear-resistant ring sleeve cylinder 4, smearing the lubricating liquid in the liquid reservoir 35 on the outer wall of the arc block 11, and the cylinder sleeve to be sleeved with the wear-resistant ring is placed on the chuck with claws 3, and the claws on the chuck with claws 3 are in contact with the outer wall of the cylinder sleeve. At this time, the inner wall of the sector bottom plate 17 is also in contact with the outer wall of the cylinder sleeve, and the wear-resistant ring is sleeved on the outer wall of the wear-resistant ring sleeve cylinder 4. The wear-resistant ring falls downward to the outer bottom end of the arc block 11 under its own gravity and the lubrication of the lubricating liquid and is located on the sector bottom plate 17;

[0050] S2: Turn on the rotating device 7, which drives the rotating disk 9 through the driving block 10 to synchronously move the multiple groups of arc blocks 11 outward to expand the diameter of the wear-resistant ring. The lifting device 2 drives the chuck with claws 3 upward to make the wear-resistant ring groove on the outer wall of the cylinder liner correspond to the sector-shaped bottom plate 17;

[0051] S3: When the arc block 11 moves to fit with the inner end of the toggle block 27, the rotating device 7 is turned off. At this time, the conductive sheet 1 29 and the conductive sheet 2 30 are in contact, so that the annular electromagnetic component 25 and the electromagnetic block 20 are energized. The electromagnetic block 20 is energized to attract the fan-shaped bottom plate 17 downward, so that the fan-shaped bottom plate 17 is separated from the arc block 11. At the same time, the annular electromagnetic component 25 moves the movable plate 23 downward, and the movable plate 23 moves the wear-resistant ring on the outer wall of the arc block 11 downward through the toggle block 27, so that the wear-resistant ring is set in the wear-resistant ring groove of the cylinder liner from the position between the arc block 11 and the fan-shaped bottom plate 17.

[0052] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary device for assembling a wear-resistant ring of a cylinder liner of a marine diesel engine, comprising a bracket (1), characterized in that: The bracket (1) is provided with a lifting device (2), the output end of the lifting device (2) is provided with a chuck with claws (3) for clamping the cylinder sleeve, a wear-resistant ring assembly is provided above the chuck with claws (3), the wear-resistant ring assembly is detachably provided on the bracket (1), and a toggle member is provided between the wear-resistant ring assembly and the chuck with claws (3); The wear-resistant ring assembly is used to expand the diameter of the wear-resistant ring, and the toggle is used to toggle the wear-resistant ring from the wear-resistant ring assembly to be sleeved on the outer wall of the cylinder liner after the diameter of the wear-resistant ring is expanded; The wear-resistant ring assembly comprises a connector detachably connected to a bracket (1); one end of the connector is connected to a wear-resistant ring sleeve cylinder (4) for sleeve-mounting a wear-resistant ring; the outer diameter of the wear-resistant ring sleeve cylinder (4) is smaller than the inner diameter of the wear-resistant ring; a groove is provided at the bottom of the wear-resistant ring sleeve cylinder (4); a plurality of groups of movable notches (8) are provided on the outer wall of the bottom of the wear-resistant ring sleeve cylinder (4) in an annular array; an arc block (11) is movably provided in the movable notch (8); both sides of the arc block (11) are connected to connecting arms (12); the connecting arms (12) are away from the arc block (11) one end is slidably connected to the bottom of the wear-resistant ring sleeve (4), and the connecting arm (12) is connected to the protrusion fixed to the bottom of the wear-resistant ring sleeve (4) through the elastic member (13), the wear-resistant ring sleeve (4) is provided with a rotating device (7), the output end of the rotating device (7) extends into the groove and is connected to a rotating disk (9), the circumferential outer wall of the rotating disk (9) is provided with a plurality of groups of driving blocks (10), the driving blocks (10) correspond one to one with the arc blocks (11), and the inner side of the arc block (11) is provided with a contact rod (14) that cooperates with the driving block (10); The rotating disk (9) is driven by the rotating device (7) to push the contact rod (14) through the driving block (10), so that the multiple groups of arc blocks (11) move outward synchronously.

2. The auxiliary device according to claim 1, characterized in that: The toggle member comprises a bottom ring (18) provided on the bracket (1) and located on the outer ring of the lifting device (2); an L-shaped frame (19) is provided on the inner side of the bottom ring (18) at a position corresponding to the arc block (11); a bottom limiting portion is provided on the L-shaped frame (19) and is in contact with the bottom of the arc block (11); an arc-shaped support plate (22) is provided on the outer side of the L-shaped frame (19); and a toggle portion is provided on the arc-shaped support plate (22) at a position corresponding to the arc block (11).

3. The auxiliary device according to claim 2, characterized in that: The bottom limiting portion includes a fan-shaped bottom plate (17) that is in contact with the bottom of the arc block (11); the fan-shaped bottom plate (17) corresponds to the claws on the claw chuck (3) one by one, and the fan-shaped bottom plate (17) and the claws on the claw chuck (3) are connected through a telescopic rod (16); the inner side of the fan-shaped bottom plate (17) and the inner side of the claws on the claw chuck (3) are in the same vertical plane; the bottom of the fan-shaped bottom plate (17) is movably passed through the L-shaped frame (19) through a T-shaped guide rod (21); and the T-shaped guide rod (21) is provided with a reset spring for driving the fan-shaped bottom plate (17) to reset; the bottom of the fan-shaped bottom plate (17) is provided with a permanent magnet; and the top of the L-shaped frame (19) is provided with an electromagnetic block (20) that is energized to attract the permanent magnet.

4. The auxiliary device according to claim 3, characterized in that: The toggle portion includes a movable plate (23) vertically movably inserted on the arc-shaped support plate (22), the movable plate (23) is connected to the arc-shaped support plate (22) via a spring (24), a toggle block (27) for contacting the outer wall of the arc-shaped block (11) is horizontally inserted above the movable plate (23), the toggle block (27) is located above the fan-shaped bottom plate (17), a permanent magnet block (26) is provided at the bottom of the movable plate (23), and a ring-shaped electromagnetic member (25) for electrically adsorbing the permanent magnet block (26) is provided at the top of the bottom ring (18); One group of the toggle blocks (27) is provided with a detection member for driving the annular electromagnetic member (25) and the electromagnetic block (20) to work.

5. The auxiliary device according to claim 4, characterized in that: The detection member includes a through hole opened at the inner end of the toggle block (27), a conductive sheet (29) is provided on the inner wall of the outer end of the through hole, a conductive sheet (30) cooperating with the conductive sheet (29) is slidably provided in the through hole, a contact rod (31) is provided on the side of the conductive sheet (30) away from the conductive sheet (29), the contact rod (31) is movable through the inner end of the toggle block (27) and extends to the outside of the toggle block (27), the outer wall of the contact rod (31) is provided with a spring (32) for driving reset, an adjusting screw (28) is threadedly inserted on the movable plate (23), and the inner end of the adjusting screw (28) is rotatably connected to the toggle block (27) through a bearing; When the outer side of the arc block (11) is in contact with the outer side of the toggle block (27), the second conductive sheet (30) is in contact with the first conductive sheet (29), the second conductive sheet (30) is electrically connected to an external power supply, and the first conductive sheet (29) is electrically connected to the annular electromagnetic component (25) and the electromagnetic block (20).

6. The auxiliary device according to claim 5, characterized in that: The outer side of the annular electromagnetic component (25) is provided with a gear ring (33), and the gear ring (33) is driven to rotate by a driving device provided on the bracket (1). One end of an L-shaped connecting arm (34) is rotatably connected to the gear ring (33) through a mounting seat and a damping shaft. The other end of the L-shaped connecting arm (34) is connected to a liquid storage seat (35). Lubricating liquid is stored in the liquid storage seat (35). A smear roller (36) is embedded on the side of the liquid storage seat (35) facing the arc block (11). The liquid storage seat (35) is located on the inner side of the toggle block (27); The smear roller (36) rolls along the circumference of the wear-resistant ring sleeve cylinder (4) along with the gear ring (33), and smears the lubricating liquid in the liquid storage seat (35) on the outer wall of the arc block (11).

7. The auxiliary device according to claim 1, characterized in that: The connecting member comprises a slider (5) arranged on a wear-resistant ring sleeve (4); a sliding opening (101) for the slider (5) to slide is provided on the bracket (1); the top of the slider (5) is connected to a connecting plate (6) via a support rod; a clamping column is provided at the bottom of the connecting plate (6); and a clamping hole for inserting the clamping column is provided at the top of the bracket (1).

8. The auxiliary device according to claim 1, characterized in that: A limiting plug plate (15) is movably inserted into the outer wall of the wear-resistant ring sleeve cylinder (4) at a position above the arc-shaped block (11).

9. A method for using an auxiliary device for assembling a wear-resistant ring of a cylinder liner of a marine diesel engine, using the auxiliary device according to claim 6, characterized in that: The following steps are involved: S1: By rotating the L-shaped connecting arm (34), the smear roller (36) contacts the outer wall of the arc block (11), and at the same time, the driving device is turned on. The driving device drives the gear ring (33) to drive the L-shaped connecting arm (34) to perform a circular motion. The smear roller (36) rolls along the gear ring (33) along the circular motion of the wear-resistant ring sleeve cylinder (4), and the lubricating liquid in the liquid storage seat (35) is smeared on the outer wall of the arc block (11). The cylinder sleeve to be sleeved with the wear-resistant ring is placed on the claw chuck (3), and the claws on the claw chuck (3) contact the outer wall of the cylinder sleeve. At this time, the inner wall of the fan-shaped bottom plate (17) also contacts the outer wall of the cylinder sleeve, and the wear-resistant ring is sleeved on the outer wall of the wear-resistant ring sleeve cylinder (4). The wear-resistant ring falls downward to the outer bottom end of the arc block (11) under its own gravity and the lubricating effect of the lubricating liquid and is located on the fan-shaped bottom plate (17); S2: Turn on the rotating device (7), which drives the rotating disk (9) through the driving block (10) to move the multiple groups of arc blocks (11) outward synchronously to expand the diameter of the wear-resistant ring, and drives the claw chuck (3) to move upward through the lifting device (2) so that the wear-resistant ring groove on the outer wall of the cylinder sleeve corresponds to the fan-shaped bottom plate (17); S3: When the arc block (11) moves to fit with the inner end of the toggle block (27), the rotating device (7) is closed. At this time, the conductive sheet 1 (29) and the conductive sheet 2 (30) are in contact, so that the annular electromagnetic member (25) and the electromagnetic block (20) are energized. The electromagnetic block (20) is energized to adsorb the fan-shaped bottom plate (17) downward, so that the fan-shaped bottom plate (17) is separated from the arc block (11). At the same time, the annular electromagnetic member (25) moves the movable plate (23) downward. The movable plate (23) moves the wear-resistant ring on the outer wall of the arc block (11) downward through the toggle block (27), so that the wear-resistant ring is set in the wear-resistant ring groove of the cylinder liner from the position between the arc block (11) and the fan-shaped bottom plate (17).

Images