A ship engine maintenance platform

Abstract

The present invention discloses a ship engine maintenance platform, which relates to the field of ship maintenance hoisting technology, including a base frame and a truss, the truss is attached with a plurality of electric hoists, the truss includes a slide and a movable slide, the movable slide can rotate relative to the slide, and when the movable slide rotates to a non-coaxial position with the slide, the engine can be suspended at least three points. The ship engine maintenance platform described in the present invention, through the truss, during the suspension process, the movable slide is driven by a driving mechanism to rotate relative to the slide, so that the movable slide and the slide are not coaxial, so that, on the one hand, the engine is suspended at least three points by at least three electric hoists mounted on the slide and the movable slide, and the engine can be adjusted at any angle in three-dimensional space, which is convenient for maintenance and inspection from all angles, and is more suitable for the use of large or multi-point suspension of ship engines, which improves the versatility of the lifting operation and brings better use prospects.

Description

Technical Field

[0001] The invention relates to the technical field of ship maintenance and hoisting, in particular to a ship engine maintenance platform. Background Art

[0002] As a precision operating machine, ship engines require a comprehensive inspection during maintenance, and due to their large size, they require auxiliary hanging equipment such as cranes.

[0003] Among them, although the single-point suspension of the crane has a certain degree of flexibility in azimuth adjustment, the stability is not high. In the process of removing the engine piston, additional stability assistance is required. The two-point suspension of the crane can ensure basic stability, but it cannot be adjusted in multiple directions, such as flipping.

[0004] In view of the above, in order to meet the needs of comprehensive inspection of ship engines, it is necessary to flexibly adjust the hanging position, but in the process of single-point or two-point hanging, there are the following problems:

[0005] (1) If the lower part of the engine needs to be inspected, one method is to repeatedly hang the engine, change the hanging position of the engine, or lift the engine to a certain height, and then stand under the engine to operate, which not only has certain risks, but also is not conducive to applying force;

[0006] (2) If the engine needs to be assembled, the engine body needs to be placed stably first, and then the parts need to be hoisted one by one. The different assembly positions of the engine parts also require the adjustment of the engine hanging position. In addition, because the parts are in contact with the placement surface, unnecessary wear or dirt may occur during the movement.

[0007] In order to solve the above problems, we propose a ship engine maintenance platform. Summary of the invention

[0008] In view of the deficiencies in the prior art, the present invention provides a ship engine maintenance platform having the advantages of all-round adjustment and aerial lifting, which can effectively solve the problems in the background technology.

[0009] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a ship engine maintenance platform, including a base frame and a truss, the truss is attached with multiple electric hoists, the truss includes a slide and a movable slide, the movable slide can rotate relative to the slide, and a driving mechanism for driving the movable slide to rotate is arranged on the slide. When the movable slide rotates to a non-coaxial direction with the slide, the engine can be suspended at least three points.

[0010] Preferably, a bottom plate is provided at the bottom end of the base frame, and the bottom plate can be used to place engine parts and the like, and the bottom plate serves as a counterweight for the base frame to make the overall structure of the maintenance platform more stable.

[0011] Preferably, the truss is fixedly connected to the upper end of the base frame, and the base frame is provided with two groups symmetrically based on the geometric center of the truss, and both groups of the base frames are triangular frame structures.

[0012] Preferably, the electric hoist slides relative to the truss, and the electric hoist is provided with a locking piece to prevent the electric hoist from moving on its own.

[0013] Preferably, the truss further comprises a fixed slide matched with the movable slide structure, and the movable slide and the fixed slide are butt-jointed to form a complete slide.

[0014] Preferably, the fixed slide is fixedly connected to the slide, and the movable slide is rotatably connected to the slide.

[0015] Preferably, the movable slide is located in the middle of the slide, not limited to the side.

[0016] Preferably, the driving mechanism comprises a motor and a reducer, and the main body of the driving mechanism is fixedly connected to the slide, and the rotor thereon passes through from the top of the slide to the bottom thereof and is fixedly connected to the movable slide.

[0017] Preferably, the fixed slide and the movable slide have the same structure as the slide after being connected, and the fixed slide and the movable slide are located below the slide.

[0018] Preferably, the fixed slide and the slide are jointly and fixedly connected to the base frame. By providing two sets of upper and lower slides, the load borne by a single slide can be effectively reduced, thereby improving the overall carrying capacity of the maintenance platform, and can better resist lateral forces, thereby improving the stability of the crane during operation and reducing tilting or shaking caused by uneven force on a single slide rail.

[0019] Preferably, the butt ends of the fixed slide and the movable slide are provided with arc edges, with the rotating connection of the movable slide as the center and the arc edge as the circumference. Therefore, without affecting the normal rotation of the movable slide, the degree of engagement between the fixed slide and the movable slide is guaranteed to the greatest extent, the gap is reduced, and the smoothness of movement of the electric hoist is improved.

[0020] Preferably, a locking rod is slidably connected to one end of the fixed slide adjacent to the movable slide, and the locking rod extends from the end portion of the fixed slide. A spring connected to the locking rod is provided at a position of the fixed slide that does not affect the sliding of the electric hoist.

[0021] Preferably, the fixed slide is provided with a slide groove matched with the lock rod structure, and the lock rod is accommodated in the slide groove and does not protrude from the surface of the fixed slide.

[0022] Preferably, a guard plate is rotatably connected to one end of the movable slide adjacent to the fixed slide, the rotatably connected end of the guard plate is adjacent to the fixed slide, and a force-bearing groove matching the locking rod structure is formed at one end of the guard plate adjacent to the fixed slide.

[0023] Preferably, a through groove is provided on the movable slide at a position corresponding to the force groove to receive the insertion of the locking rod. Therefore, the guard plate does not need to be mounted on the edge of the movable slide, thereby reducing the wear on the guard plate during the engagement of the movable slide with the fixed slide.

[0024] Preferably, a spring for support is also provided between the guard plate and the movable slide. When the spring is not under stress, the guard plate is inclined based on the movable slide, thereby blocking the movement of the electric hoist.

[0025] Preferably, the lower end of the guard plate is fixedly connected to a spring, and the spring is fixedly connected to the movable slide.

[0026] Preferably, the guard plate is inclined in a direction relative to the electric hoist.

[0027] Preferably, a fitting groove is provided on the guard plate at a position corresponding to the electric hoist pulley.

[0028] Preferably, the mating groove is highly consistent with the structural size of the pulley on the electric hoist. When the electric hoist moves to the point where the pulley on it fits with the guard plate, the pulley is now fitted into the mating groove. The mating groove is different from the side of the guard plate, which can effectively avoid the failure of blocking the electric hoist due to uneven force on the guard plate caused by excessive force of the electric hoist.

[0029] Preferably, a second cavity matching the structure is provided at a position corresponding to the guard plate on the movable slide, so that the guard plate does not protrude from the surface of the movable slide when it is fully stored, similar to the slide groove.

[0030] Preferably, a force-bearing side is provided on the locking rod at a force-bearing position corresponding to the movable slide, and a force-applying side is provided on the locking rod at a position corresponding to the guard plate.

[0031] Preferably, the force-bearing side and the force-applying side are chamfered or rounded so that the locking rod can better accept the external force, reduce the friction coefficient, and ensure the smooth rotation of the fixed slide and the movable slide.

[0032] Preferably, the electric hoist connected to the slide is provided with a moving group two, and the electric hoist connected to the fixed slide or the moving slide is provided with a moving group one. When the fixed slide and the moving slide are in a non-docked state, the gap between the fixed slide and the moving slide does not affect the normal sliding of the electric hoist provided with the moving group two.

[0033] Preferably, the moving group 1 or the moving group 2 serves as the connecting part between the electric hoist and the truss, is rotatably connected with a pulley, and is in sliding contact with the slide, fixed slide or movable slide, and the moving group is driven by a motor.

[0034] Preferably, the structural dimensions of the moving group 2 are larger than those of the moving group 1, the moving group 1 is slidably connected to the fixed slide, and the moving group 2 is slidably connected to the slide.

[0035] Compared with the prior art, the present invention provides a ship engine maintenance platform, which has the following beneficial effects:

[0036] The ship engine maintenance platform is provided with a truss. During the hanging process, the driving mechanism drives the movable slide to rotate relative to the slide, so that the movable slide and the slide are not coaxial. Thus, on the one hand, the engine is hung at least three points by at least three electric hoists installed on the slide and the movable slide, so that the engine can be adjusted at any angle in three-dimensional space, which is convenient for maintenance and inspection from various angles. It is more suitable for the use of large-scale or multi-point hanging of ship engines, and improves the versatility of the hoisting operation.

[0037] On the other hand, during the hoisting process, by hanging the components separately in non-same axial directions and based on the characteristics of the electric hoists on the fixed slide and the movable slide that can be flexibly adjusted in all directions, flexible assembly of components with larger structural dimensions can be achieved during the hanging process. The overall process is mostly achieved in the air, which effectively reduces the tedious operation of frequent hanging of components during the assembly process and directly avoids the wear or dirt that may be caused to the components during the frequent hanging process. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 The present invention is a schematic diagram of the overall structure of a ship engine maintenance platform.

[0039] Figure 2 The present invention is a schematic structural diagram of a truss for a ship engine maintenance platform.

[0040] Figure 3 This is a structural analysis diagram of a fixed slide in a truss for a ship engine maintenance platform of the present invention.

[0041] Figure 4 The present invention is a schematic structural diagram of a truss movable slide for a ship engine maintenance platform.

[0042] Figure 5 The present invention is a schematic diagram of the state transformation of a truss used for a ship engine maintenance platform.

[0043] Figure 6The present invention is a schematic diagram of the connection state of a fixed slide and a movable slide in a truss for a ship engine maintenance platform.

[0044] Figure 7 The present invention is a schematic diagram of a ship engine maintenance platform in use.

[0045] In the figure:

[0046] 001, engine body; 002, crankshaft;

[0047] 1. Base frame; 2. Bottom plate; 3. Truss; 4. Electric hoist;

[0048] 31. Slide; 32. Fixed slide; 33. Moving slide; 34. Driving mechanism;

[0049] 32-1, arc edge;

[0050] 321, locking rod; 322, spring; 323, slide groove; 324, cavity 1;

[0051] 3211, force receiving side; 3212, force applying side;

[0052] 331, guard plate; 332, cavity 2; 333, through groove; 334, connecting part;

[0053] 3311, stress groove; 3312, fitting groove;

[0054] 41. Mobile group one; 42. Mobile group two. DETAILED DESCRIPTION

[0055] In order to make the technical means, creative features, objectives and functional effects of the present invention easy to understand, the present invention will be further described below in conjunction with the drawings in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0056] In order to address the shortcomings of the existing technology, such as Figure 1 As shown, the present invention provides a ship engine maintenance platform, wherein a truss 3 is fixedly connected to the upper end of a base frame 1, and two groups of base frames 1 are symmetrically arranged based on the geometric center of the truss 3, and both groups of base frames 1 are triangular frame structures; an electric hoist 4 slides relative to the truss 3, and a locking member is attached to the electric hoist 4 to prevent the electric hoist 4 from moving by itself;

[0057] A bottom plate 2 is provided at the bottom end of the base frame 1. The bottom plate 2 can be used to place engine parts and the like, and the bottom plate 2 serves as a counterweight for the base frame 1, so that the overall structure of the maintenance platform is more stable.

[0058] It should be noted that during the maintenance of the ship engine, due to the large structural dimensions of the ship engine and the special structure of the engine, in order to facilitate the maintenance of the ship engine, the engine is first transferred to the bottom plate 2 by a lifting trolley, and then the electric hoist 4 is moved based on the truss 3, and the hook on the electric hoist 4 is hooked to the appropriate position on the engine for lifting. Among them, according to the lifting or maintenance needs of the ship engine, the state of the truss 3 is changed, such as the multi-point hanging state and the subsequent lifting state, to meet various needs in the maintenance process.

[0059] [Example 1]

[0060] In order to enable the ship engine to be flexibly adjusted in position during the hanging process, this embodiment is proposed:

[0061] Specifically, Figure 2 As shown, a truss 3 for a ship engine maintenance platform, a fixed slide 32 is fixedly connected to a slide 31, and a movable slide 33 is rotatably connected to the slide 31, and the movable slide 33 is located in the middle of the slide 31, not limited to the side; a driving mechanism 34 includes a motor and a reducer, and the main body of the driving mechanism 34 is fixedly connected to the slide 31, and the rotor thereon passes through the upper part of the slide 31 to the lower part thereof and is fixedly connected to the movable slide 33;

[0062] The fixed slide 32 and the slide 31 are fixedly connected to the base frame 1. By providing two sets of upper and lower slides, the load borne by a single slide can be effectively reduced, thereby improving the overall carrying capacity of the maintenance platform, and better resisting lateral forces, thereby improving the stability of the crane during operation and reducing the tilting or shaking caused by uneven force on a single slide rail.

[0063] It should be noted that the present invention is a ship engine maintenance platform. By setting the truss 3, the state of the truss 3 is changed according to the actual maintenance needs. During this period, the driving mechanism 34 drives the movable slide 33 to rotate based on the slide 31 to adjust the orientation of the engine in the hanging state:

[0064] In order to facilitate the maintenance of the engine and adjust the hoisting of the engine in all directions, the engine needs to be hoisted at least at three points. At this time, the two opposite sides of the engine are respectively hooked to any two electric hoists 4 located on the slide 31, the fixed slide 32 or the movable slide 33, and the driving mechanism 34 should drive the movable slide 33 to rotate to a non-coaxial direction with the fixed slide 32. The preferred structural state is as follows Figure 1 , 2As shown, the movable slide 33 and the slide 31 are perpendicular to each other in a top view, so that when the two opposite sides of the engine are respectively hooked to the two electric hoists 4 located on the movable slide 33, the other side other than the two opposite sides needs to be hooked to at least one electric hoist 4 located on the slide 31 or the fixed slide 32, and vice versa.

[0065] After the engine is hooked, there are at least three stress points in different directions on the engine, where the stress points are distributed in two relative directions and at least one side direction. In this embodiment, three-point hanging is taken as an example. When two opposite sides of the engine are hooked to two electric hoists 4 located on the movable slide 33, the direction of the electric hoist 4 on the hook side other than the two opposite sides is adjusted, such as the hook length and the position of the electric hoist 4 based on the slide 31, so that the engine can be turned over.

[0066] If the engine needs to be rotated, the hooks of the electric hoists 4 that are not in two relative positions need to be removed first, so that the engine is only subjected to force in two relative positions. Therefore, the engine can be rotated by driving the movable slide 33 to rotate through the driving mechanism 34.

[0067] It is worth mentioning that the movable slide 33 is driven to rotate relative to the slide 31 by the driving mechanism 34, so that the movable slide 33 is not coaxial with the slide 31. Therefore, on the one hand, the engine can be suspended at least three points by at least three electric hoists 4 mounted on the slide 31 and the movable slide 33, so that the engine can be adjusted at any angle in three-dimensional space, which is convenient for maintenance and inspection from various angles. It is more suitable for the use of large or multi-point suspension such as ship engines, thereby improving the versatility of lifting operations.

[0068] As a preferred embodiment, the docking ends of the fixed slide 32 and the movable slide 33 are both provided with an arc edge 32-1, with the rotating connection of the movable slide 33 as the center of the circle and the arc edge 32-1 as the circumference. Therefore, without affecting the normal rotation of the movable slide 33, the degree of engagement between the fixed slide 32 and the movable slide 33 is guaranteed to the greatest extent, the gap is reduced, and the smoothness of movement of the electric hoist 4 is improved.

[0069] [Example 2]

[0070] After the ship engine is repaired, the engine is assembled. The crankshaft 002 is the largest component in the engine except the engine body 001. The assembly process also requires the assistance of machinery such as a crane. In order to make the lifting of the engine more convenient and labor-saving, based on the above embodiment 1, this embodiment is proposed:

[0071] It should be noted that the present invention is a ship engine maintenance platform. Through the set truss 3, in the process of disassembling and repairing the engine, the engine can be lifted as a whole first, and then the body 001 can be disassembled. The larger parts of the engine can be temporarily lifted by multiple electric hoists 4 for standby use and moved to a position that does not hinder maintenance. In this embodiment, taking the lifting of the crankshaft 002 as an example, the crankshaft 002 does not need to be lowered after being lifted. On the one hand, this is to avoid excessive contact between the crankshaft 002 and the outside to cause unnecessary wear or dirt. On the other hand, after the crankshaft 002 is lifted, it is moved by the electric hoist 4 to any position on the slide 31, the fixed slide 32 or the movable slide 33 for temporary lifting, so that in the subsequent lifting process, there is no need to frequently lift and lower the crankshaft 002, thereby shortening the engine maintenance process.

[0072] In the process of assembling the engine after all the parts of the engine have been overhauled, the engine needs to be assembled at this time. The engine body 001 is suspended by two electric hoists 4. For example, the two electric hoists 4 for suspending the engine body 001 are located on the slide 31, and the two electric hoists 4 for suspending the crankshaft 002 are located on the movable slide 33. Figure 7 In the structural state shown, by adjusting the position and hook length of the four electric hoists 4, the crankshaft 002 is hung above the engine body 001, so that it is more convenient to assemble the crankshaft 002 and the engine body 001. The same is true for other larger structural components on the engine, so they will not be elaborated in detail.

[0073] Among them, the hook on the electric hoist 4 can be installed to match the structure of the engine components. For example, for smaller components, the electric hoist 4 can be used alone to hook a parts box for storage, and the hook for hooking the crankshaft 002 can be equipped with a rubber sleeve to avoid wear between the hook and the crankshaft 002.

[0074] It is worth mentioning that, through at least three electric hoists 4 on the fixed slide 32 and the movable slide 33, two of the electric hoists 4 are used to hang the engine body 001, and at least one other electric hoist 4 is used to hook the disassembled engine parts, such as the crankshaft 002 and other parts with larger structural dimensions. Therefore, by separately hanging the parts in non-same axial directions, based on the characteristics of the electric hoists 4 on the fixed slide 32 and the movable slide 33 that can be flexibly adjusted in all directions, flexible assembly of parts with larger structural dimensions during the hanging process is achieved, and the overall process is mostly achieved in the air, which effectively reduces the tedious operation of frequent hanging of parts during the assembly process, and directly avoids the wear or dirt that may be caused to the parts during the frequent hanging process.

[0075] In the above embodiments, those skilled in the art can understand that, according to actual usage requirements, the number of electric hoists 4 installed is not limited to three or four.

[0076] [Example 3]

[0077] Based on the above-mentioned embodiment 1, since the movable slide 33 and the slide 31 rotate relative to each other and are controlled by the driving mechanism 34, in order to prevent the movement of the electric hoist 4 from causing the movable slide 33 to be subjected to unstable force during the hoisting process, thereby causing unnecessary wear to the driving mechanism 34, this embodiment is proposed:

[0078] Furthermore, if Figures 4 to 6 As shown, a fixed slide 32 and a movable slide 33 in a truss 3 for a ship engine maintenance platform, the fixed slide 32 is slidably connected to one end of the movable slide 33 adjacent to the fixed slide 32, and the locking rod 321 extends from the end of the fixed slide 32, and a spring 322 connected to the locking rod 321 is provided at a position of the fixed slide 32 that does not affect the sliding of the electric hoist 4; a guard plate 331 is rotatably connected to one end of the movable slide 33 adjacent to the fixed slide 32, and the rotating connection end of the guard plate 331 is adjacent to the fixed slide 32, and a force groove 3311 that matches the structure of the locking rod 321 is formed at one end of the guard plate 331 adjacent to the fixed slide 32; a spring 322 for support is also provided between the guard plate 331 and the movable slide 33, and when the spring 322 is not under force, the guard plate 331 is in an inclined state based on the movable slide 33, thereby blocking the movement of the electric hoist 4.

[0079] The lock body 321 is locked in the locking cam 331 through the locking cam 333, so that the locking cam 331 can be locked in the locking cam 331.

[0080] It should be noted that the present invention is a ship engine maintenance platform, by setting a fixed slide 32 and a movable slide 33, the fixed slide 32 and the movable slide 33 are in a non-coaxial state as shown in FIG. Figure 2 As shown, the state of the movable slide 33 at this time is as follows Figure 4As shown, in this state, the guard plate 331 is supported by the spring 322 located below it, and forms an inclined and tilted state based on the movable slide 33, thereby forming a limit protection at both ends of the movable slide 33, and the pulley on the electric hoist 4 moves to the guard plate 331 and is blocked, so as to prevent the electric hoist 4 located thereon from excessive movement and slipping.

[0081] Among them, a fitting groove 3312 is opened on the guard plate 331 at the position corresponding to the pulley of the electric hoist 4. The fitting groove 3312 is highly consistent with the structural size of the pulley on the electric hoist 4. When the electric hoist 4 moves until the pulley thereon fits with the guard plate 331, the pulley is now fitted to the fitting groove 3312. The fitting groove 3312 is different from the side of the guard plate 331, which can effectively avoid the uneven force on the guard plate 331 caused by excessive force of the electric hoist 4, resulting in failure of blocking the electric hoist 4.

[0082] The locking cam 321 is pressed against the locking cam 322, and the locking cam 322 is pressed against the locking cam 321. The locking cam 321 is pressed against the locking cam 322, and the locking cam 322 is pressed against the locking cam 321. Figure 6 The structural status shown.

[0083] As a preferred embodiment, the force-bearing side 3211 and the force-applying side 3212 are chamfered or rounded, so that the locking rod 321 can better accept the external force, reduce the friction coefficient, and ensure the smooth rotation of the fixed slide 32 and the movable slide 33;

[0084] The moving group 1 41 or the moving group 2 42 serves as the connecting part between the electric hoist 4 and the truss 3, is rotatably connected with a pulley, and is in sliding contact with the slide 31, the fixed slide 32 or the movable slide 33, and the moving group is driven by a motor; the structural dimensions of the moving group 2 42 are larger than those of the moving group 1 41, the moving group 1 41 is slidably connected to the fixed slide 32, and the moving group 2 42 is slidably connected to the slide 31.

[0085] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed for protection.

Claims

1. A ship engine maintenance platform, comprising a base frame (1) and a truss (3), wherein the truss (3) is attached with a plurality of electric hoists (4), characterized in that: The truss (3) comprises a slide (31) and a movable slide (33); the movable slide (33) can rotate relative to the slide (31); a driving mechanism (34) for driving the movable slide (33) to rotate is provided on the slide (31); when the movable slide (33) rotates to a non-coaxial direction with the slide (31), the engine can be suspended at least at three points; The truss (3) further comprises a fixed slide (32) which is structurally matched with the movable slide (33); the movable slide (33) and the fixed slide (32) are butt-jointed to form a complete slide; A locking rod (321) is slidably connected to one end of the fixed slide (32) adjacent to the movable slide (33), and the locking rod (321) extends from the end of the fixed slide (32), and a spring (322) connected to the locking rod (321) is provided at a position of the fixed slide (32) that does not affect the sliding of the electric hoist (4); The movable slide (33) has a guard plate (331) rotatably connected to one end thereof adjacent to the fixed slide (32); the rotatably connected end of the guard plate (331) is adjacent to the fixed slide (32); and the end of the guard plate (331) adjacent to the fixed slide (32) is provided with a force bearing groove (3311) that matches the structure of the locking rod (321); A spring (322) for support is also provided between the guard plate (331) and the movable slide (33). When the spring (322) is not subjected to force, the guard plate (331) is in an inclined state based on the movable slide (33), thereby blocking the movement of the electric hoist (4).

2. A ship engine maintenance platform according to claim 1, characterized in that: After the fixed slide (32) and the movable slide (33) are butt-jointed, their structures are identical to those of the slide (31), and the fixed slide (32) and the movable slide (33) are located below the slide (31).

3. A ship engine maintenance platform according to claim 1, characterized in that: The butt ends of the fixed slide (32) and the movable slide (33) are both provided with arc edges (32-1).

4. A ship engine maintenance platform according to claim 1, characterized in that: A fitting groove (3312) is provided on the guard plate (331) at a position corresponding to the pulley of the electric hoist (4).

5. A ship engine maintenance platform according to claim 1, characterized in that: A second cavity (332) having a structure matching that of the guard plate (331) is provided on the movable slide (33) at a position corresponding to the guard plate (331).

6. A ship engine maintenance platform according to claim 1, characterized in that: A force-bearing side (3211) is provided on the locking rod (321) at a force-bearing portion corresponding to the movable slide (33), and a force-applying side (3212) is provided on the locking rod (321) at a portion corresponding to the guard plate (331).

7. A ship engine maintenance platform according to claim 1, characterized in that: The electric hoist (4) connected to the slide (31) is provided with a second moving group (42), and the electric hoist (4) connected to the fixed slide (32) or the movable slide (33) is provided with a first moving group (41). When the fixed slide (32) and the movable slide (33) are in a non-jointed state, a gap between the fixed slide (32) and the movable slide (33) does not affect the normal sliding of the electric hoist (4) provided with the second moving group (42).

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