Dismounting device for fishing pulley yoke shaft

Abstract

The utility model discloses a shaft dismantling device for a salvage pulley yoke, which belongs to the technical field of salvage equipment and comprises a hoisting gantry and a dismantling tool, the hoisting gantry is arranged on a deck, the salvage pulley yoke to be dismantled is fixed on the side face of the deck, the hoisting gantry is connected with a pulley on the salvage pulley yoke through a steel wire rope, and the steel wire rope binds the pulley. The hoisting portal frame tightens the steel wire rope, and the dismantling tool is fixed to a side face pin shaft of the fishing pulley yoke. The shaft dismantling device for the salvage pulley yoke is used for dismantling a pin shaft in the salvage pulley yoke, due to the fact that the weight and the size of a salvage pulley are large, the pin shaft in the middle of the pulley is also tightly fixed to the pulley yoke, the shaft dismantling device is arranged on the side face of the pulley yoke, the pin shaft is ejected out through a jack, and time and labor are saved; during dismounting, the hoisting portal is arranged to hoist the pulley, so that the pressure of the pulley on the pin shaft is reduced, the pin shaft is conveniently drawn out, and meanwhile, the pulley is prevented from falling off after the pin shaft is dismounted.

Description

Technical Field

[0001] The utility model relates to the technical field of salvage equipment. Specifically, the utility model relates to a device for removing the shaft of a salvage pulley frame. Background Art

[0002] In the construction of sunken ship salvage, for the salvage of sunken ships in relatively shallow waters, the method of using double-lift floating barges in cooperation with steel wire ropes is often adopted for lifting. During the lifting stage, the pulley used for guiding the lifting wire rope is damaged after being stressed, affecting subsequent normal use. It needs to be replaced before subsequent sunken ship salvage so that normal operation can be carried out. The damaged pulley needs to be removed and replaced with a spare pulley. Since the pulley is heavy and large in volume, general removal devices are not suitable for removing the pulley shaft. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a device for removing the shaft of a salvage pulley frame, which can help remove the pulley shaft.

[0004] To solve the above technical problem, the technical solution adopted by the utility model is: a device for removing the shaft of a salvage pulley frame, including a hoisting gantry and a demolition tooling. The hoisting gantry is arranged on the deck, and the salvage pulley frame to be removed is fixed on the side of the deck. The hoisting gantry is connected to the pulley on the salvage pulley frame through a steel wire rope. The steel wire rope binds the pulley, and the hoisting gantry tightens the steel wire rope. The demolition tooling is fixed at the side pin shaft of the salvage pulley frame.

[0005] Preferably, the hoisting gantry includes a cubic gantry. A plurality of manual hoists are arranged on the cubic gantry. One end of the manual hoist is fixed on the cubic gantry, and the other end hooks the steel wire rope. The steel wire rope binds the pulley, and both ends of the steel wire rope are respectively connected to the manual hoist.

[0006] Preferably, the demolition tooling includes a connecting flange and a fixed frame. The connecting flange is connected to the side of the salvage pulley frame through bolts. The side plate for removing the pin shaft of the salvage pulley frame can fix the connecting flange on the side of the pin shaft through bolts. The side of the fixed frame is fixedly connected to the connecting flange, and a jack is arranged inside the fixed frame.

[0007] Preferably, the fixed frame includes a horizontal fixed frame and a vertical frame. The horizontal fixed frame is a frame with a hollow middle. The vertical frame is perpendicularly arranged under the horizontal fixed frame and is integrally in an "L" shape. One end of the vertical frame is fixedly connected to the bottom surface of the horizontal fixed frame, and the other end is fixedly connected to the connecting flange.

[0008] Preferably, an adjusting bolt is arranged on the vertical frame.

[0009] Adopting the technical solution of the utility model, the following beneficial effects can be obtained:

[0010] The device for removing the pin shaft of the salvage pulley frame of the present utility model is used to remove the pin shaft inside the salvage pulley frame. Since the weight and volume of the pulley used for salvage are relatively large, and the pin shaft in the middle of the pulley is tightly fixed on the pulley frame, this device is arranged on the side of the pulley frame, and a jack is used to push out the pin shaft, which saves time and effort. When removing, a hoisting gantry is set up to lift the pulley, reducing the pressure of the pulley on the pin shaft, facilitating the extraction of the pin shaft, and also preventing the pulley from falling after the pin shaft is removed. Brief Description of the Drawings

[0011] The following briefly describes the content expressed by each drawing in this specification and the marks in the drawings:

[0012] Figure 1 is a structural schematic diagram of the hoisting gantry of this device Figure 1 ;

[0013] Figure 2 is a structural schematic diagram of the hoisting gantry of this device Figure 2 ;

[0014] Figure 3 is a structural schematic diagram of the removal tooling of this device Figure 1 ;

[0015] Figure 4 is a structural schematic diagram of the removal tooling of this device Figure 2 ;

[0016] The marks in the above figures are all: 1, deck; 2, salvage pulley frame; 3, cubic gantry; 4, chain block; 5, steel wire rope; 6, connecting flange; 7, fixed frame; 8, jack; 9, horizontal fixed frame; 10, vertical frame; 11, adjusting bolt; 12, pin shaft. Detailed Description of the Preferred Embodiment

[0017] The following further describes in detail the specific embodiments of the present utility model, such as the shapes, structures of the components involved, the mutual positions and connection relationships between the various parts, the functions of the various parts, and the working principles, etc., with reference to the drawings.

[0018] As Figure 1 shown, this device for removing the pin shaft of the salvage pulley frame includes a hoisting gantry and removal tooling. The hoisting gantry is arranged on the deck 1, and the salvage pulley frame 2 to be removed is fixed on the side of the deck 1. The hoisting gantry is connected to the pulley on the salvage pulley frame 2 through the steel wire rope 5. The steel wire rope 5 binds the pulley, and the hoisting gantry tightens the steel wire rope 5. The removal tooling is fixed at the side pin shaft 12 of the salvage pulley frame 2.

[0019] The hoisting gantry includes a cubic gantry 3, on which a plurality of chain hoists 4 are arranged. One end of each chain hoist 4 is fixed to the cubic gantry 3, and the other end hooks a steel wire rope 5. The steel wire rope 5 binds a pulley, and both ends of the steel wire rope 5 are respectively connected to the chain hoist 4.

[0020] The demolition tooling includes a connecting flange 6 and a fixing frame 7. The connecting flange 6 is connected to the side of the salvage pulley frame 2 by bolts. The side plate for removing the pin shaft of the salvage pulley frame can fix the connecting flange 6 to the side of the pin shaft 12 by bolts. The side of the fixing frame 7 is fixedly connected to the connecting flange 6, and a jack 8 is arranged inside the fixing frame. The fixing frame 7 includes a horizontal fixing frame 9 and a vertical frame 10. The horizontal fixing frame 9 is a frame with a hollow middle. The vertical frame 10 is perpendicularly arranged under the horizontal fixing frame 9 and is integrally in an "L" shape. One end of the vertical frame 10 is fixedly connected to the bottom surface of the horizontal fixing frame 9, and the other end is fixedly connected to the connecting flange 6. An adjusting bolt 11 is arranged on the vertical frame 10, and the adjusting bolt 11 is used to adjust the vertical position of the jack 8.

[0021] During use, weld the cubic gantry 3 to the deck 1 for fixation. Then, bind the pulley to be demolished with the steel wire rope 5, and use the chain hoist 4 to tighten the steel wire rope 5. The steel wire rope 5 binds the pulley to reduce the pressure of the pulley on the pin shaft 12, facilitating the ejection of the pin shaft 12 and also preventing the pulley from falling after the pin shaft 12 is withdrawn. Then, install the demolition tooling on the side of the salvage pulley frame 2. Remove the guard plate on the side of the pin shaft 12, and the connecting flange 6 can be fixed to the side of the pin shaft 12 by bolts. Place the jack 8 inside the fixing frame 7. The vertical position of the jack 8 can be adjusted by the adjusting bolt 11, and the horizontal position of the jack 8 can be adjusted by placing a pressing block inside the fixing frame 7. After adjustment, introduce oil pressure into the jack 8, and the jack 8 slowly ejects the pin shaft 12, then the pin shaft 12 of the pulley can be demolished. After the pin shaft 12 is demolished, the pulley is bound by the steel wire rope 5 and recycled.

[0022] The above has made an exemplary description of the present utility model in conjunction with the drawings. Obviously, the specific implementation of the present utility model is not limited by the above methods. As long as various non-substantive improvements are made by adopting the method concept and technical solution of the present utility model, or the concept and technical solution of the present utility model are directly applied to other occasions without improvement, they are all within the protection scope of the present utility model.

Claims

1. A device for removing the shaft of a fishing pulley frame, characterized in that: It includes a hoisting gantry and a demolition tooling. The hoisting gantry is arranged on the deck, and the salvage pulley frame to be demolished is fixed on the side of the deck. The hoisting gantry is connected to the pulley on the salvage pulley frame through a wire rope. The wire rope binds the pulley, and the hoisting gantry tightens the wire rope. The demolition tooling is fixed at the side pin shaft of the salvage pulley frame.

2. The device for removing the fishing pulley frame shaft according to claim 1, characterized in that: The hoisting gantry includes a cubic gantry. A plurality of chain hoists are arranged on the cubic gantry. One end of the chain hoist is fixed on the cubic gantry, and the other end hooks the wire rope. The wire rope binds the pulley, and both ends of the wire rope are respectively connected to the chain hoist.

3. The device for removing the fishing pulley frame shaft according to claim 1, characterized in that: The demolition tooling includes a connecting flange and a fixing frame. The connecting flange is connected to the side of the salvage pulley frame through bolts. The side plate for demolishing the pin shaft of the salvage pulley frame can fix the connecting flange on the side of the pin shaft through bolts. The side of the fixing frame is fixedly connected to the connecting flange, and a jack is arranged inside the fixing frame.

4. The device for removing the fishing pulley frame shaft according to claim 3, wherein: The fixing frame includes a horizontal fixing frame and a vertical frame. The horizontal fixing frame is a frame with a hollow middle. The vertical frame is perpendicularly arranged under the horizontal fixing frame and is integrally in an "L" shape. One end of the vertical frame is fixedly connected to the bottom surface of the horizontal fixing frame, and the other end is fixedly connected to the connecting flange.

5. The device for removing the fishing pulley frame shaft according to claim 4, characterized in that: Adjusting bolts are arranged on the vertical frame.

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