CN219341403U - Special tool and sleeve for hoisting stern shaft - Google Patents

Abstract

The utility model discloses a special tool and a sleeve for hoisting a stern shaft. In the utility model, the special tool and the sleeve comprise copper rollers, a supporting plate, a connecting plate, a screw seat, a bottom plate, a limit bar, a limit plate and a screw with a nut; the outside of copper gyro wheel is provided with the backup pad, the outside of backup pad is provided with the optical axis, the bottom of optical axis is provided with the connecting plate, the outside of connecting plate is provided with the limiting plate, the surface of limiting plate is provided with the optical axis, the outside of optical axis is provided with spacing, installs special frock in #22 bulkhead department, and the round equipartition has welded 3 gyro wheel devices on the frock, is convenient for wear out after the stern tube front bearing at stern axle front end, adjusts the gyro wheel in order to spacing to the stern axle. The roller device can strictly control the advancing direction of the stern shaft, ensure that the stern shaft is concentric with the stern tube, and avoid the risk of scratching the stern shaft.

Description

Special tool and sleeve for hoisting stern shaft

Technical Field

The utility model belongs to the technical field of stern shaft hoisting tools, and particularly relates to a special tool and a sleeve for stern shaft hoisting.

Background

At present, a ship stern shaft with a main propulsion system is generally arranged, and the hoisting process is exemplified as follows:

1. preparation:

1) A plurality of hoists are arranged vertically above the axis, laterally and on the ground.

2) The 3 rollers are well supported and placed and reliably fixed.

2. The installation process comprises the following steps:

1) And (3) conveying the tail shaft to the stern by using a crane, then slowly moving the tail shaft to a corresponding position by using a hoist, and starting to move the stern shaft.

2) And (3) moving the stern shaft forwards, and when the rear part of the stern shaft approaches to the roller supports, sequentially removing the 3 roller supports from the rear to the front until the stern shaft is in place.

But feedback from the actual installation situation has the following problems and disadvantages: for the hoisting process, only the roller support has continuous and stable upward supporting force on the stern shaft. In the shaft penetrating process, the pulling force of the hoist on the stern shaft is controlled by people, and the acting time, the acting size and the acting direction of the hoist are non-constant and variable; the soft band only provides auxiliary limit for the stern shaft, and the pulling force acting on the stern shaft is controlled by a person, and the acting time are non-constant and variable. Therefore, the advancing direction of the stern shaft is difficult to control in the shaft penetrating process, and the concentricity of the stern shaft and the stern tube is ensured. Because the distance between the inner diameter (phi 430 mm) of the stern tube and the outer diameter (phi 360 mm) of the stern shaft is too small, when the stern tube is concentric with the shaft, the unilateral is only 35mm, and the inside of the stern tube is also provided with an inner oil tube, a protection tube and a tube clamp of a rear bearing temperature sensor cable, and the distance between the outer diameter of the stern shaft and the tube clamp is only 18.5mm. In the shaft penetrating process, the stern shaft can touch the lower pipe clamp and scratch the stern shaft by a little careless. As a key component of the main propulsion system of the ship, the scratch of the stern shaft can affect the working performance and the running stability of the propulsion shafting, and serious long-term running of the stern shaft can cause accidents.

Disclosure of Invention

The utility model aims at: in order to solve the problems, the special tool and the sleeve for hoisting the stern shaft are provided.

The technical scheme adopted by the utility model is as follows: a special tool and sleeve for hoisting a stern shaft comprises a copper roller, a supporting plate, a connecting plate, a screw seat, a bottom plate, a limiting strip, a limiting plate and a screw with a nut; the outside of copper gyro wheel is provided with the backup pad, the outside of backup pad is provided with the optical axis, the bottom of optical axis is provided with the connecting plate, the outside of connecting plate is provided with the limiting plate, the surface of limiting plate is provided with the optical axis, the outside of optical axis is provided with spacing.

In a preferred embodiment, the copper roller of the copper roller is penetrated by the optical axis of the optical axis and is arranged between two support plates of the support plates.

In a preferred embodiment, holes are drilled at both ends of the optical axis, and cotter pins are inserted.

In a preferred embodiment, two support plates of the support plates are welded to the connecting plates of the connecting plates and welded together to the limiting plates of the limiting plates.

In a preferred embodiment, the mounting plate of the connecting plate is provided with a circular groove.

In a preferred embodiment, the screw mount of the screw mount is welded to the base plate of the base plate.

In a preferred embodiment, two of the stop bars are welded to the base plate of the base plate.

In a preferred embodiment, the screw rod with the nut screw rod passes through the screw rod seat of the screw rod seat, a nut is welded on the screw rod, and the head of the screw rod is provided with a chamfer.

In a preferred embodiment, the limiting plate of the limiting plate passes through between two limiting strips of the limiting strips, and a round groove on the connecting plate shown by the connecting plate is matched with the screw head of the screw with the nut.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

in the utility model, a special tool is arranged at the bulkhead of #22, and 3 roller devices are uniformly welded on the tool, so that the rollers can be conveniently adjusted to limit the stern shaft after the front end of the stern shaft passes through the front bearing of the stern tube. The roller device can strictly control the advancing direction of the stern shaft, ensure that the stern shaft and the stern tube are concentric, avoid the risk of scratching the stern shaft, and further improve the safety of the tool in the use process.

Drawings

FIG. 1 is a schematic view of the whole structure of a roller device according to the present utility model;

FIG. 2 is a schematic diagram of the structure of the limit bar in the present utility model;

fig. 3 is a schematic view of a stern shaft limiting and mounting structure in the present utility model.

1. Copper roller; 2. a support plate; 3. a connecting plate; 4. a screw seat; 5. a bottom plate; 6. a limit bar; 7. a limiting plate; 8. a screw with a nut; 9. an optical axis.

Detailed Description

The utility model will be described in further detail below with reference to examples and with reference to the accompanying drawings.

Referring to fig. 1-3, a special tool and a sleeve for hoisting a stern shaft comprise a copper roller 1, a supporting plate 2, a connecting plate 3, a screw seat 4, a bottom plate 5, a limit bar 6, a limit plate 7 and a screw rod 8 with a nut; the outside of copper gyro wheel 1 is provided with backup pad 2, and the outside of backup pad 2 is provided with optical axis 9, and the bottom of optical axis 9 is provided with connecting plate 3, and the outside of connecting plate 3 is provided with limiting plate 7, and the surface of limiting plate 7 is provided with optical axis 9, and the outside of optical axis 9 is provided with spacing 6.

Structural composition of roller device for ship stern shaft installation and connection relation between the compositions:

the copper roller shown in element 1 is mounted between two support plates shown in element 2, passing through the optical axis shown in element 9. Drilling holes at two ends of the optical axis shown in the piece 9, and inserting cotter pins;

two support plates shown in the part 2 are welded with a connecting plate shown in the part 3 and are welded on a limiting plate shown in the part 7 together, and a shallow circular groove is dug in the connecting plate shown in the part 3;

the screw seat shown in the part 4 is welded on the bottom plate shown in the part 5;

two limiting strips shown in the piece 6 are welded on the bottom plate shown in the piece 5;

passing the screw rod shown in the part 8 through a screw rod seat shown in the part 4, wherein a nut is welded on the screw rod, and the head of the screw rod is provided with a chamfer;

the limiting plate shown in the piece 7 is penetrated between the two limiting strips shown in the piece 6 until the round groove on the connecting plate shown in the piece 3 is matched with the head part of the screw rod shown in the piece 8.

The working principle and the using method of the roller device for installing the ship stern shaft are as follows:

uniformly welding 3 roller devices on a special tool in a circle, and installing the special tool at a #22 bulkhead as shown in figure 2;

when the stern shaft passes through the #22, the roller device is adjusted, and the stern shaft is limited as shown in fig. 3.

The specific method comprises the following steps: the nut on the screw rod shown by the wrench rotating part 8 drives the screw rod to rotate, and the screw rod moves under the reverse acting force of the screw rod seat shown by the part 4 until the roller is attached to the stern shaft. At this time, the stern shaft advances under the limit of 3 rollers, ensuring that the stern shaft and the stern tube are concentric.

The implementation principle of the special tool and sleeve embodiment for hoisting the stern shaft is as follows: by using the roller device, a special tool is arranged at the bulkhead of #22, 3 roller devices are uniformly welded on the tool, and the roller is conveniently adjusted to limit the stern shaft after the front end of the stern shaft passes through the front bearing of the stern tube. The roller device can strictly control the advancing direction of the stern shaft, ensure that the stern shaft is concentric with the stern tube, and avoid the risk of scratching the stern shaft.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (6)

1. The utility model provides a special frock of stern axle hoist and mount and sleeve which characterized in that: the device comprises a copper roller (1), a supporting plate (2), a connecting plate (3), a screw seat (4), a bottom plate (5), a limit strip (6), a limit plate (7) and a screw (8) with a nut;

the copper roller is characterized in that a supporting plate (2) is arranged outside the copper roller (1), an optical axis (9) is arranged outside the supporting plate (2), a connecting plate (3) is arranged at the bottom of the optical axis (9), a limiting plate (7) is arranged outside the connecting plate (3), the optical axis (9) is arranged on the outer surface of the limiting plate (7), and a limiting strip (6) is arranged outside the optical axis (9);

the copper roller of the copper roller (1) passes through the optical axis of the optical axis (9) and is arranged between two support plates of the support plate (2);

drilling holes at two ends of an optical axis (9) and inserting cotter pins;

two support plates of the support plate (2) are welded with the connecting plate of the connecting plate (3) and are welded on the limiting plate of the limiting plate (7) together.

2. The special tool and sleeve for hoisting the stern shaft as claimed in claim 1, wherein: a circular groove is formed in the mounting plate of the connecting plate (3).

3. The special tool and sleeve for hoisting the stern shaft as claimed in claim 1, wherein: the screw rod seat of the screw rod seat (4) is welded on the bottom plate of the bottom plate (5).

4. The special tool and sleeve for hoisting the stern shaft as claimed in claim 1, wherein: two limit strips of the limit strips (6) are welded on the bottom plate of the bottom plate (5).

5. The special tool and sleeve for hoisting the stern shaft as claimed in claim 1, wherein: the screw rod with the nut screw rod (8) passes through the screw rod seat of the screw rod seat (4), a nut is welded on the screw rod, and a chamfer is arranged at the head of the screw rod.

6. The special tool and sleeve for hoisting the stern shaft as claimed in claim 1, wherein: the limiting plate of the limiting plate (7) passes through the space between the two limiting strips of the limiting strip (6) until a circular groove on the connecting plate shown by the connecting plate (3) is matched with the screw head of the screw rod (8) with the nut.

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