Maintenance auxiliary assembly of ship shaft engine system

Abstract

The utility model relates to a maintenance auxiliary assembly of a ship shaft generating system, the maintenance auxiliary assembly comprises a guide rail tool piece and a mechanical traction device, the height of the guide rail tool piece is the same as the height of a shaft generating system base, the guide rail tool piece is arranged on one side of the shaft generating system base in the axial direction, and the mechanical traction device is arranged on the guide rail tool piece. The axial direction of the mechanical traction device is parallel to the axial direction of the shaft transmission shaft, one end of the mechanical traction device penetrates through the front side wall and the rear side wall of the shaft transmission shell and is detachably connected with the shaft transmission shell, and the mechanical traction device is used for pushing the shaft transmission shell to move towards the guide rail tool piece. The maintenance auxiliary assembly of the ship shaft emission system can effectively avoid the movement of the shaft emission shaft and the maintenance risk of the shaft emission shell out of a cabin, greatly improves the maintenance efficiency, and reduces the risk of positioning deviation caused by reinstallation after the shell and the shaft emission shaft are disassembled respectively.

Description

Technical Field

[0001] This utility model belongs to the field of ship maintenance technology, and specifically relates to a maintenance auxiliary component for a ship shaft engine system. Background Technology

[0002] In a ship's propulsion system, the propulsion unit consists of a hull, the propulsion shaft, internal coils, and other accessories. The propulsion shaft and related components are crucial for power transmission. The gap between the propulsion shaft and the coils in the hull is only 3mm, typically covered by the hull to prevent seawater corrosion and external mechanical damage. However, traditional maintenance procedures for critical components like the propulsion shaft involve disassembling the entire propulsion unit and shaft off the ship for repairs. This not only increases workload and poses significant safety hazards but also carries the potential risk of inaccurate hull positioning and reduced sealing performance during reinstallation, severely impacting system operational safety and maintenance efficiency.

[0003] Therefore, designing a maintenance method that can reduce the number of steps involved in disassembling and assembling the hull and avoid the aforementioned problems is of great significance for improving the efficiency and safety of ship maintenance. Utility Model Content

[0004] To address the aforementioned issues, this invention provides a maintenance auxiliary component for a ship's shaft engine system, which significantly improves maintenance efficiency and reduces the risk of positioning deviations caused by disassembly of the hull.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A maintenance auxiliary component for a ship's shafting and engine system includes a shafting shaft, a shafting housing, and a shafting and engine system base. The shafting shaft passes through the shafting housing, which is placed on the shafting and engine system base. The shafting housing and the shafting and engine system base are detachably connected. The maintenance auxiliary component includes a guide rail fixture and a mechanical traction device. The guide rail fixture is connected to the hull structure and has the same height as the shafting and engine system base. The guide rail fixture is positioned on one side of the shafting and engine system base in the axial direction. The mechanical traction device is arranged parallel to the axial direction of the shafting shaft. One end of the mechanical traction device passes through and is detachably connected to the front and rear side walls of the shafting housing, and is used to push the shafting housing towards the guide rail fixture.

[0007] Furthermore, the mechanical traction device includes a traction hydraulic pump and a screw. The axial direction of the screw is parallel to the axial direction of the shaft. One end of the screw is connected to the traction hydraulic pump, and the end of the screw away from the traction hydraulic pump is connected to the guide rail tooling and the shaft housing in sequence along its axial direction.

[0008] Furthermore, the guide rail tooling includes a support base and a guide rail plate. The guide rail plate is fixed to the side of the support base. The length direction of the support base is parallel to the axis of the shaft shaft. The height of the support base is the same as the height of the shaft system base.

[0009] Furthermore, the guide rail fixture also includes a guide plate, which is vertically disposed on the end face of the support base away from the shaft housing. A guide hole with a central axis parallel to the shaft axis is provided on the guide plate. One end of the screw passes through the guide hole and the front and rear side walls of the shaft housing in sequence, and is detachably connected to the shaft housing. The height of the central axis of the guide hole is higher than the upper surface of the guide rail plate.

[0010] Furthermore, the guide rail plates are located on the left and right sides of the support base near the traction hydraulic pump.

[0011] Furthermore, the number of the guide rail working chamber and the mechanical traction device is at least two, and they are equally spaced along the width direction of the shaft housing.

[0012] Furthermore, the maintenance assistance component also includes a sliding component, which is located on the end face of the shaft engine system base and the support seat near the shaft engine housing, and the sliding component is detachably connected to the support seat.

[0013] Furthermore, at least one set of sliding compensation positioning pins is provided on the left and right sides of the shaft housing in a mirror-symmetrical manner.

[0014] Furthermore, the lower end face of the shaft housing and the upper end face of the shaft system base are detachably connected by fasteners.

[0015] Furthermore, the guide rail tooling is fixedly connected to the hull structure by bolts or welding.

[0016] This utility model discloses a maintenance auxiliary component for a ship's shaft engine system. It allows for repairs to the shaft engine and other components within the system without completely removing the protective housing. Utilizing the gap between the housing and the shaft engine system base, guide rail fixtures are installed, allowing the housing to move axially along the guide rails to expose the components requiring repair. After repair, the housing is slid back to its original position. The stability of the housing during movement and the positioning accuracy after repositioning are ensured through the cooperation of a sliding device and a sliding compensation positioning pin. Attached Figure Description

[0017] Figure 1 This is a schematic diagram showing the usage status of the maintenance auxiliary components of the ship shaft generator system described in this utility model.

[0018] Figure 2 yes Figure 1 View from the AA direction.

[0019] Figure 3 This is a structural schematic diagram of the guide rail tooling component described in this utility model.

[0020] Among them, 1-guide rail tooling, 2-shaft launcher system base, 3-shaft launcher housing, 4-sliding component, 5-fastener, 6-screw, 7-sliding compensation positioning pin, 8-shaft launcher shaft, 11-support base, 12-guide rail plate, 13-guide plate, 131-guide hole, 14-traction hydraulic pump. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] like Figures 1-3 As shown, a maintenance auxiliary component for a ship's shafting system is disclosed. The ship's shafting system includes a shafting shaft 8, a shafting housing 3, and a shafting system base 2. The shafting shaft 8 passes through the shafting housing 3, and the shafting housing 3 is placed on the shafting system base 2. The shafting housing 3 and the shafting system base 2 are detachably connected. The maintenance auxiliary component includes a guide rail fixture 1 and a mechanical traction device 6. The guide rail fixture 1 is bolted or welded to the hull structure. The height of the guide rail fixture 1 is the same as the height of the shafting system base 2. The guide rail fixture 1 is placed on one side of the shafting system base 2 in the axial direction. The axial direction of the mechanical traction device is parallel to the axial direction of the shafting shaft. One end of the mechanical traction device passes through and is detachably connected to the front and rear side walls of the shafting housing 3.

[0023] In some embodiments, the mechanical traction device includes a traction hydraulic pump 14 and a screw 6. The axial direction of the screw 6 is parallel to the direction of the shaft shaft 8. One end of the screw 6 is connected to the traction hydraulic pump 14, and the other end of the screw 6 is connected along its axial direction to the front and rear side walls of the guide rail tooling 1 and the shaft housing 3 in sequence.

[0024] Furthermore, Φ40 holes are provided on the front and rear sides of the shaft housing 3. The screw 6 is detachably connected to the front and rear side walls of the shaft housing 3 by bolts. The shaft housing 3 is moved toward the guide rail fixture 1 by the traction hydraulic pump 14.

[0025] To prevent the shaft 8 from shifting during movement, at least one set of sliding compensation positioning pins 7 is provided on the left and right sides of the shaft housing 3 in a mirror-symmetrical manner. This restricts the shaft housing 3 from shifting and allows it to slide to one side in a straight line.

[0026] The guide rail fixture 1 should be made of high-strength, non-deformable alloy steel or composite material, and its surface should be treated with anti-corrosion coating to adapt to the marine working environment. The height of the guide rail fixture 1 should be consistent with the base 2 of the shaft system to ensure that the shaft housing 3 can slide smoothly on the horizontal plane and avoid any shaking or stress concentration.

[0027] During maintenance, first, loosen the fasteners between the rotor housing 3 and the rotor system base 2 using a special tool. Then, use the traction hydraulic pump 14 to pull the mechanical traction device screw 6 to move the rotor housing 3 onto the guide rail fixture 1 until the rotor or other components requiring maintenance are fully exposed. After the rotor housing 3 is moved, maintenance personnel can directly access the various components of the rotor system through the gaps to perform necessary inspections, cleaning, lubrication, or replacement operations. After maintenance is completed, use the traction device to slide the rotor housing 3 back to its original position along the guide rail fixture 1.

[0028] Specifically, the guide rail fixture 1 includes a support base 11 and a guide rail plate 12. The guide rail plate 12 is fixed to the side of the support base 11. The length direction of the support base 11 is parallel to the axial direction of the shaft 8. The height of the support base 11 is the same as the height of the shaft system base 2.

[0029] To ensure the stability of the movement direction of the shaft housing 3, in some embodiments, the guide rail tooling 1 further includes a guide plate 13. The guide plate 13 is vertically disposed on the end face of the support base 11 away from the shaft housing 3. A guide hole 131 is provided on the guide plate 13, with its central axis parallel to the axis of the shaft shaft 8. One end of the screw 6 passes through the guide hole 131 and the front and rear side walls of the shaft housing 3 in sequence, and is detachably connected to the shaft housing 3. The height of the central axis of the guide hole 131 is higher than the upper end face of the guide rail plate 11.

[0030] Since there is a pad at the front and rear of the upper end of the shaft-driven system base 2, in order to ensure the entire plane of the base and provide a smooth surface for subsequent movement of the housing, a sliding component 4 is added between the two pads and on the end face of the support base 11 near the shaft-driven housing 3. Specifically, the sliding component 4 is placed on the end face of the shaft-driven system base 2 and the support base 11 near the shaft-driven housing, and the sliding component 4 is detachably connected to the support base 11.

[0031] It is understandable that by setting the sliding component 4, the friction between the shaft housing 3 and the shaft system base 2 and the guide rail plate 12 is reduced, which facilitates the movement of the shaft housing 3; the sliding device cooperates with the sliding groove on the guide rail plate 12 to ensure that the housing remains horizontal during movement and prevents tilting or damage to the system.

[0032] The sliding component 4 employs a low-friction slider to minimize resistance and maintain stability during the movement of the shaft housing 3. Simultaneously, the sliding component 4 should possess high-pressure resistance and corrosion resistance to ensure long-term reliability. The connection between the guide rail fixture 1 and the sliding device should facilitate disassembly and maintenance, allowing for regular inspection and replacement of the sliding structure.

[0033] Furthermore, the lower end face of the shaft housing 3 and the upper end face of the shaft system base 2 are detachably connected by fasteners 5.

[0034] Fastener 5 is a bolt. Before moving the housing, fastener 5 (bolt) is loosened with a wrench and removed to facilitate longitudinal movement of the shaft housing 3. After the shaft housing 3 is reset, fastener 5 is retightened, and the sealing structure is inspected and verified to ensure that the waterproof and dustproof performance of the shaft housing 3 is not affected.

[0035] Those skilled in the art should understand that the above description is merely a specific embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A maintenance auxiliary component for a ship's shafting system, the ship's shafting system comprising a shaft, a shaft housing, and a shafting system base, the shaft passing through the shaft housing, the shaft housing being placed on the shafting system base, and the shaft housing being detachably connected to the shafting system base, characterized in that, The maintenance auxiliary components include a guide rail fixture and a mechanical traction device. The guide rail fixture is connected to the hull structure, and its height is the same as that of the shaft engine system base. The guide rail fixture is located on one side of the shaft engine system base in the axial direction. The mechanical traction device is arranged parallel to the axial direction of the shaft engine shaft. One end of the mechanical traction device passes through and is detachably connected to the front and rear side walls of the shaft engine housing, and is used to push the shaft engine housing towards the guide rail fixture.

2. The maintenance auxiliary component for a ship shaft generator system according to claim 1, characterized in that, The mechanical traction device includes a traction hydraulic pump and a screw. The axial direction of the screw is parallel to the axial direction of the shaft. One end of the screw is connected to the traction hydraulic pump, and the end of the screw away from the traction hydraulic pump is connected to the guide rail fixture and the shaft housing in sequence along its axial direction.

3. A maintenance auxiliary component for a ship shaft generator system according to claim 2, characterized in that, The guide rail fixture includes a support base and a guide rail plate. The guide rail plate is fixed to the side of the support base. The length direction of the support base is parallel to the axis of the shaft. The height of the support base is the same as the height of the shaft system base.

4. A maintenance auxiliary component for a ship shaft generator system according to claim 3, characterized in that, The guide rail fixture also includes a guide plate, which is vertically disposed on the end face of the support base away from the shaft housing. A guide hole is provided on the guide plate with the central axis parallel to the shaft axis. One end of the screw passes through the guide hole and the front and rear side walls of the shaft housing in sequence, and is detachably connected to the shaft housing. The height of the central axis of the guide hole is higher than the upper surface of the guide rail plate.

5. A maintenance auxiliary component for a ship shaft generator system according to claim 4, characterized in that, The guide rail plates are located on the left and right sides of the support base near the end of the traction hydraulic pump.

6. A maintenance auxiliary component for a ship shaft generator system according to claim 5, characterized in that, The number of the guide rail working chamber and the mechanical traction device are both at least two, and they are equally spaced along the width direction of the shaft housing.

7. A maintenance auxiliary component for a ship shaft generator system according to any one of claims 4 to 6, characterized in that, The maintenance assistance component also includes a sliding component, which is located on the end face of the shaft system base and the support seat near the shaft housing. The sliding component is detachably connected to the support seat.

8. A maintenance auxiliary component for a ship shaft generator system according to claim 7, characterized in that, At least one set of sliding compensation positioning pins is provided on the left and right sides of the shaft housing in a mirror-symmetrical manner.

9. A maintenance auxiliary component for a ship shaft generator system according to claim 8, characterized in that, The lower end face of the shaft housing and the upper end face of the shaft system base are detachably connected by fasteners.

10. A maintenance auxiliary component for a ship shaft generator system according to claim 9, characterized in that, The guide rail fixture is fixedly connected to the hull structure by bolts or welding.

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