CN220809759U - A propeller shaft shifting tool - Google Patents

Abstract

The utility model discloses a propeller shaft shifting tool which comprises a connecting assembly, an extending assembly and a hoisting component, wherein the connecting assembly is used for being detachably connected with the end part of a propeller shaft; the extension component is connected to the end part of the connection component in an extending way along the length direction of the connection component; the hoisting component is arranged on the extension component and is used for being connected with hoisting equipment. The utility model aims to provide a propeller shaft shifting tool for solving the problems that in the prior art, a propeller shaft is damaged in the process of being arranged in a stern tube of a ship.

Description

A propeller shaft shifting tool

Technical Field

The utility model belongs to the technical field of ships, and in particular relates to a propeller shaft shifting tool.

Background technique

During the installation of the propeller shaft in the ship's stern tube, the front bearing and the rear bearing have been pre-installed in the ship's stern tube. The propeller shaft needs to be passed through the front bearing and the rear bearing in the ship's stern tube in sequence. During the process of the propeller shaft passing through the front bearing in the ship's stern tube, a crane or other tool can be used to move the propeller shaft to a suitable position to ensure that the propeller shaft and the front bearing will not be damaged due to sliding friction; then during the shaft shifting process, when the propeller shaft moves to the rear bearing position, the shaft head of the propeller shaft is still in the ship's stern tube, and its position cannot be adjusted, which is more likely to cause damage to the rear bearing and the propeller shaft.

Therefore, it is a technical problem to be solved urgently to develop a propeller shaft shifting tool to assist the propeller shaft in being installed in the ship's stern tube through the shaft shifting so as to avoid damage to the ship's stern tube, bearings and propeller shaft.

Utility Model Content

The utility model aims to provide a propeller shaft shifting tool to solve the problems in the prior art such as damage of the propeller shaft during installation in the stern tube of a ship.

In order to achieve the above-mentioned utility model purpose, the utility model adopts the following technical solutions:

The utility model proposes a propeller shaft shifting tool, which includes a connecting component, an extension component and a lifting component, wherein the connecting component is used to be detachably connected to the end of the propeller shaft; the extension component is extended along the length direction of the connecting component and connected to the end of the connecting component; the lifting component is arranged on the extension component, and the lifting component is used to be connected to a lifting device.

In some embodiments of the present application, an internal threaded portion is formed in the connection assembly, and the internal threaded portion is used for threaded connection with an external threaded portion formed at the end of the propeller shaft.

In some embodiments of the present application, the connecting assembly includes a connecting body and a connecting cavity formed therein, the internal threaded portion is formed on the side wall of the connecting cavity; the end of the connecting body is provided with a plurality of first threaded holes spaced apart along its circumference; the extension assembly includes an extension component and an extension connecting component, the extension connecting component is formed at the end of the extension component, and the extension connecting component is provided with a plurality of second threaded holes spaced apart along its circumference; the positions of the second threaded holes correspond one-to-one to those of the first threaded holes; the first threaded hole and the second threaded hole are connected by fasteners.

In some embodiments of the present application, the extension component is a cylindrical structure extending along the axial direction of the propeller shaft.

In some embodiments of the present application, the lifting component is a lifting ear plate.

In some embodiments of the present application, the extension assembly further includes a plurality of reinforcing portions, which are arranged at intervals along the circumference of the extension component and connected to the extension connecting component.

In some embodiments of the present application, the reinforcement portion is a rib plate.

In some embodiments of the present application, the extending connecting component is a plate-like structure, and the cross-section of the extending connecting component is the same as the cross-section of the connecting component.

In some embodiments of the present application, the extension component is detachably connected to the connection component.

Compared with the prior art, the advantages and positive effects of the utility model are:

By setting up a connecting component, it can be detachably connected to the propeller shaft. Before the propeller shaft needs to be installed on the stern tube of the ship, the propeller shaft shifting tooling is first connected to the propeller shaft through the connecting component; an extension component extending along the circumferential direction of the propeller shaft is connected to the connecting component, which can increase the length, so that after the propeller shaft contacts the front end bearing of the stern tube of the ship and continues to extend toward the stern tube of the ship, before the propeller shaft contacts the rear end bearing, the end of the extension component first extends out of the stern tube of the ship; since the lifting component is connected to the extension component, the lifting equipment is connected to the lifting component, and the position of the connecting component relative to the stern tube of the ship is adjusted through the extension component, thereby adjusting the propeller shaft to a suitable position relative to the rear end bearing to prevent damage to the rear end bearing.

After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

FIG1 is a cross-sectional view of an embodiment of a propeller shaft shifting tooling proposed by the present utility model;

FIG2 is a schematic diagram of the overall structure of an embodiment of an extension assembly and a hoisting component of a propeller shaft shifting tooling proposed by the present utility model;

FIG3 is a cross-sectional view of FIG2;

Fig. 4 is a cross-sectional view of the A-A position in Fig. 3;

FIG5 is a side view of a connection assembly of a propeller shaft shifting tooling proposed by the present invention;

FIG6 is a cross-sectional view of a connection assembly of a propeller shaft shifting tooling proposed by the present invention;

In the figure,

110, connecting the main body;

111, first threaded hole;

120, connecting cavity;

121, internal thread portion;

210, extension member;

220, extension connection member;

221, second threaded hole;

230, fasteners;

240, Reinforcement Department;

300, lifting parts.

Detailed ways

The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

In the present utility model, unless otherwise clearly stipulated and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention may repeat reference numbers and/or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and/or settings discussed.

In the present embodiment, a propeller shaft deflection tool is involved, as shown in FIGS. 1 , 2 and 3 , and includes a connecting component, an extending component and a lifting component 300 .

The extension component is connected to one end of the connection component.

The other end of the connecting assembly is used for detachable connection with the end of the propeller shaft.

As shown in Figures 1, 5 and 6, external threaded portions are formed at the ends of the propeller shaft. Therefore, in order to achieve a detachable connection with the propeller shaft, an internal threaded portion 121 is formed at the other end of the connecting component, so that the connecting component and the propeller shaft are threadedly connected through the internal threaded portion and the external threaded portion.

The hanging component 300 is connected to the extension assembly.

Specifically, the hoisting component 300, the extension component and the connection component are connected and arranged in sequence.

In this embodiment, the connection assembly includes a connection body 110 and a connection cavity 120 formed in the connection body 110 .

The internal thread portion 121 is formed on the inner side wall of the connection body 110 .

Since the diameters of propeller shafts are different, in order to be able to match propeller shafts of different specifications, the connecting assembly and the extension component 200 are designed to be detachably connected.

Therefore, when connecting with different propeller shafts, it is sufficient to replace connecting components of different specifications.

In order to achieve a detachable connection between the connecting component and the extending component, the connecting component and the extending component can be detachably connected by fasteners.

In this embodiment, as shown in FIG. 5 and FIG. 6 , a plurality of first threaded holes 111 are provided at intervals along the circumference of the end portion of the connection body 110 .

The extension assembly includes an extension component 210 and an extension connecting component 220 .

The extension connection member 220 is connected to an end of the extension member 210 .

As shown in FIG. 4 , the connecting extension component 220 is provided with a plurality of second threaded holes 221 spaced apart along the circumference thereof.

The positions of the plurality of first threaded holes 111 and the plurality of second threaded holes 221 correspond one to one.

The first threaded hole 111 is connected to the second threaded hole 221 by a fastener 230, thereby realizing a detachable connection between the extension assembly and the connection assembly.

In some other embodiments, the connecting component and the extending component may be connected in other detachable ways.

In this embodiment, in order to ensure that the extension component 210 has sufficient structural strength, the extension component 210 is a cylindrical structure extending along the circumferential direction of the propeller shaft.

Since the propeller shaft is long and heavy, it is far beyond the weight range that can be carried by manpower. Therefore, during the process of installing the propeller shaft in the stern tube of the ship, the propeller shaft must be lifted by a lifting device. In this embodiment, since the propeller shaft shifting tooling is before the propeller shaft is installed, the two need to be connected. Therefore, during the lifting process, the propeller shaft can be lifted indirectly by connecting the lifting device with the propeller shaft shifting tooling.

Therefore, the lifting component 300 may be a lifting eye plate.

Before the propeller shaft is installed, the connecting assembly is connected to the propeller shaft. After the propeller shaft passes through the front end bearing of the ship's stern tube, the propeller shaft continues to be moved along the ship's stern tube. When the propeller shaft has not yet moved to the rear end bearing, the lifting component 300 and the extension assembly extend out of the ship's stern tube. The lifting equipment can be connected to the lifting ear plate to adjust the height of the propeller shaft, thereby realizing the adjustment of the relative position of the propeller shaft and the rear end bearing.

In this embodiment, since the propeller shaft is heavy and the force application point of the lifting equipment relative to the propeller shaft shifting tooling is located at the end of the tooling, the extension component 210 is longer and more prone to deformation. Therefore, the extension component 210 can adopt a cylindrical structure.

In addition, a plurality of reinforcing parts 240 may be provided along the circumference of the extension member 210. The reinforcing parts 240 are connected to the extension connection member 220 at the same time.

Specifically, the reinforcement portion 240 may adopt a rib plate structure.

The extension connection member 220 has a plate-like structure. The extension connection member 220 can have the same structural form as the cross section of the connection component.

In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

The above is only a specific implementation method of the utility model, but the protection scope of the utility model is not limited to this. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims (9)

1. A propeller shaft shifting tool, characterized by comprising: A connecting assembly for detachably connecting to an end of a propeller shaft; An extension component, which extends along the length direction of the connection component and is connected to an end of the connection component; A hoisting component is arranged on the extension assembly, and the hoisting component is used to be connected to the lifting equipment. 2. The propeller shaft shifting tool according to claim 1 is characterized in that an internal threaded portion is formed in the connecting component, and the internal threaded portion is used for threaded connection with an external threaded portion formed at the end of the propeller shaft. 3. The propeller shaft shifting tool according to claim 2, characterized in that: The connection assembly comprises a connection body and a connection cavity formed therein, wherein the internal threaded portion is formed on a side wall of the connection cavity; a plurality of first threaded holes are spaced apart along the circumference of the end of the connection body; The extension assembly comprises an extension component and an extension connection component, wherein the extension connection component is formed at the end of the extension component, and the extension connection component is provided with a plurality of second threaded holes spaced apart along the circumference thereof; the positions of the second threaded holes correspond to the positions of the first threaded holes one by one; The first threaded hole and the second threaded hole are connected by a fastener. 4. The propeller shaft shifting tooling according to claim 3 is characterized in that the extension component is a cylindrical structure extending along the axial direction of the propeller shaft. 5. The propeller shaft shifting tooling according to claim 1, characterized in that the lifting component is a lifting ear plate. 6. The propeller shaft shifting tooling according to claim 3 is characterized in that the extension assembly further comprises a plurality of reinforcing parts, and the plurality of reinforcing parts are arranged at intervals along the circumference of the extension component and connected to the extension connecting component. 7. The propeller shaft shifting tooling according to claim 6 is characterized in that the reinforcement portion is a rib plate. 8. The propeller shaft deflection tooling according to claim 3 is characterized in that the extended connecting component is a plate-like structure, and the cross-section of the extended connecting component is the same as the cross-section of the connecting component. 9. The propeller shaft shifting tooling according to claim 1 is characterized in that the extension component and the connecting component are detachably connected.