CN219277770U

CN219277770U - Tandem rudder propeller

Info

Publication number: CN219277770U
Application number: CN202320874464.XU
Authority: CN
Inventors: 顾振华; 孙熙
Original assignee: Wuxi Shensui Ship Equipment Co ltd
Current assignee: Wuxi Shensui Ship Equipment Co ltd
Priority date: 2023-04-19
Filing date: 2023-04-19
Publication date: 2023-06-30
Anticipated expiration: 2033-04-19

Abstract

The utility model discloses a tandem rudder propeller which comprises an input shafting, wherein the input shafting comprises a power pack, one end of the power pack is provided with a stabilizing plate, an output shaft of the power pack is connected with driving conical teeth, and the driving conical teeth are connected with driven conical teeth in a meshed manner; the output shaft system comprises an output transmission shaft, and the output transmission shaft is fixed in the driven conical teeth; the rear propeller generates thrust and the front propeller generates pulling force, and the rear propeller and the front propeller are both arranged on the output transmission shaft; the rear propeller and the front propeller rotate in the same direction; the front propeller and the rear propeller comprise hubs, the hubs are fixed on the output transmission shaft, and blades are arranged on the outer side surfaces of the hubs; the beneficial effects of the utility model are as follows: the propulsion efficiency of the whole device is higher; the propeller is smaller in size and transmits the same power; the vibration noise of the device is lower; can meet the equipment requirement of the ship with higher navigational speed.

Description

Tandem rudder propeller

Technical Field

The utility model belongs to the technical field of ship propulsion devices, and particularly relates to a tandem rudder propeller.

Background

The performance of ship hull design and ship power equipment greatly influences the ability to operate and control the ship; further, the safety of the ship sailing is also affected.

After the rudder propeller device was successfully developed by german companies in the last 50 th century, the entire modern shipbuilding industry was quickly conquered, and the rudder propeller device was considered as a classical marine propulsion system worldwide; the search for higher propulsion efficiency is always the direction of effort by the marine propulsion technology developers.

The power of the traditional rudder propeller device is transmitted to the output shafting through the input shafting, then one propeller is driven to generate thrust, the size of the propeller of the traditional rudder propeller device is larger, and the vibration noise of the ship is larger.

Disclosure of Invention

The utility model aims to provide a tandem rudder propeller, wherein an output shaft system of the tandem rudder propeller is provided with two propellers rotating in the same direction, one pull type propeller and one push type propeller, the power of the same size is transmitted, and the size of the propellers is smaller; the vibration noise of the device is lower.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a tandem rudder propeller, comprising

The input shaft system comprises a power pack, one end of the power pack is provided with a stabilizing plate, an output shaft of the power pack is connected with driving conical teeth, and the driving conical teeth are connected with driven conical teeth in a meshed manner;

the output shaft system comprises an output transmission shaft, and the output transmission shaft is fixed in the driven conical teeth;

the rear propeller generates thrust and the front propeller generates pulling force, and the rear propeller and the front propeller are both arranged on the output transmission shaft.

Preferably, the diameters of the rear propeller and the front propeller are the same or different.

Preferably, the rear propeller and the front propeller rotate in the same direction.

Preferably, the rear propeller comprises a rear hub, the rear hub is fixed on the output transmission shaft, and rear blades are arranged on the outer side face of the rear hub.

Preferably, the front propeller comprises a front hub, the front hub is fixed on the output transmission shaft, and front blades are arranged on the outer side face of the front hub.

Compared with the prior art, the utility model has the beneficial effects that:

the propulsion efficiency of the whole device is higher; the propeller is smaller in size and transmits the same power; the vibration noise of the device is lower; can meet the equipment requirement of the ship with higher navigational speed.

Drawings

FIG. 1 is a schematic view of the external structure of a conventional rudder propeller device;

FIG. 2 is a schematic diagram of a transmission structure of a conventional rudder propeller device;

FIG. 3 is a schematic view of a tandem rudder propeller device according to the present utility model;

FIG. 4 is a schematic diagram of a transmission structure of a tandem rudder propeller device according to the present utility model;

in the figure: 1. an input shaft system; 11. a power pack; 111. a stabilizing plate; 2. an output shaft system; 21. an active conical tooth; 22. driven conical teeth; 23. an output drive shaft; 3. a rear propeller; 31. rear paddles; 32. a rear hub; 4. a front propeller; 41. front blades; 42. a front hub.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Comparative example

Referring to fig. 1 and 2, in order to provide a conventional rudder propeller device, power of the conventional rudder propeller device is transmitted to an output shaft system 2 through an input shaft system 1, and then drives a rear propeller 3 to generate thrust; comprising

The input shaft system 1, wherein the input shaft system 1 comprises a power pack 11, one end of the power pack 11 is provided with a stabilizing plate 111, and the stabilizing plate 111 supports the power pack 11; the output shaft of the power pack 11 is connected with a driving conical tooth 21, the driving conical tooth 21 is connected with a driven conical tooth 22 in a meshed manner, the power pack 11 can drive the driving conical tooth 21 to rotate when working, and the driving conical tooth 21 rotates to drive the driven conical tooth 22 to rotate;

the output shaft system 2 comprises an output transmission shaft 23, the output transmission shaft 23 is fixed in the driven conical teeth 22, and the driven conical teeth 22 rotate to drive the output transmission shaft 23 to rotate;

the rear propeller 3 for generating thrust, the rear propeller 3 comprises a rear propeller hub 32, the rear propeller hub 32 is fixed at one end of the output transmission shaft 23, the output transmission shaft 23 rotates to drive the rear propeller hub 32 to rotate, rear blades 31 are arranged on the outer side surface of the rear propeller hub 32, and the rear propeller hub 32 rotates to drive the rear blades 31 to rotate.

Example 1

Referring to fig. 3 and 4, a first embodiment of the present utility model provides a tandem rudder propeller comprising

The input shaft system 1, wherein the input shaft system 1 comprises a power pack 11, one end of the power pack 11 is provided with a stabilizing plate 111, and the stabilizing plate 111 supports the power pack 11; the output shaft of the power pack 11 is connected with a driving conical tooth 21, the driving conical tooth 21 is connected with a driven conical tooth 22 in a meshed manner, the power pack 11 can drive the driving conical tooth 21 to rotate when working, the driving conical tooth 21 rotates to drive the driven conical tooth 22 to rotate, and the power pack 11 adopts a motor;

the output shaft system 2, the output shaft system 2 comprises an output transmission shaft 23, the output transmission shaft 23 is fixed in the driven conical teeth 22, and in order to ensure the rotation of the output transmission shaft 23, a bearing is additionally arranged in the tandem rudder propeller, and the driven conical teeth 22 rotate to drive the output transmission shaft 23 to rotate;

the rear propeller 3 for generating thrust and the front propeller 4 for generating pulling force, wherein the rear propeller 3 comprises a rear propeller hub 32, the rear propeller hub 32 is fixed on an output transmission shaft 23, the output transmission shaft 23 rotates to drive the rear propeller hub 32 to rotate, rear blades 31 are arranged on the outer side surface of the rear propeller hub 32, the rear propeller hub 32 rotates to drive the rear blades 31 to rotate, the diameters of the rear propeller 3 and the front propeller 4 are the same, the rear propeller 3 and the front propeller 4 rotate in the same direction, the power of the tandem propeller device is transmitted to an output shafting 2 through an input shafting 1, then the front propeller and the rear propeller are driven, the front propeller 4 generates pulling force, the rear propeller 3 generates pushing force, the rear propeller 3 can absorb vortex energy generated in wake of the front propeller 4, the propulsion efficiency can be remarkably improved, and the noise and vibration level can be remarkably reduced; the tandem rudder propeller device distributes a prescribed total power to the front propeller 4 and the rear propeller 3, and reduces the load of individual propellers, and can reduce the diameter of each propeller.

The tandem rudder propeller has the advantages that the structure of the device is improved, so that the propulsion efficiency can be greatly improved, the vibration noise of the device is reduced, the diameter of the propeller is reduced, the tandem rudder propeller is suitable for more ship types, and the tandem rudder propeller is favored by the shipmen; the tandem rudder propeller belongs to high-end equipment in the field of ship and ocean engineering and is mainly used for propelling ship.

Compared with the ship provided with the traditional rudder propeller device, the ship provided with the serial rudder propeller device has obvious energy-saving effect, and can obviously reduce the noise and vibration level of the ship, so that the ship provided with the serial rudder propeller device can replace the traditional rudder propeller device in a plurality of application occasions; in addition, the propeller of the tandem rudder propeller device which generates the same thrust force is smaller than that of the traditional rudder propeller device, so that the tandem rudder propeller device is particularly suitable for ships with limited blade diameter, ship draft or blade tip clearance requirements, and the application market of the tandem rudder propeller device is wider than that of the traditional rudder propeller device; the naval equipment needs rudder propeller devices with excellent performance, low noise and vibration are required, the required ship speed is higher, the landing warships need to adapt to the working environment of shallow water, and the serial rudder propeller devices are preferred.

Example 2

Please refer to fig. 3 and 4, which are a second embodiment of the present utility model, which is based on the previous embodiment, except that:

the power pack 11 adopts a diesel engine;

the diameters of the rear propeller 3 and the front propeller 4 are different.

Example 3

Referring to fig. 3 and 4, a third embodiment of the present utility model is shown, which is based on the previous embodiment, except that:

the power pack 11 adopts a gear box for transmission;

the diameters of the rear propeller 3 and the front propeller 4 are the same.

While embodiments of the present utility model have been shown and described in detail with reference to the foregoing detailed description, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A tandem rudder propeller, characterized in that: comprising

The power pack comprises an input shaft system (1), wherein the input shaft system (1) comprises a power pack (11), one end of the power pack (11) is provided with a stabilizing plate (111), an output shaft of the power pack (11) is connected with a driving conical tooth (21), and the driving conical tooth (21) is connected with a driven conical tooth (22) in a meshing manner;

the output shaft system (2), the output shaft system (2) comprises an output transmission shaft (23), and the output transmission shaft (23) is fixed in the driven conical teeth (22);

the rear propeller (3) generates thrust and the front propeller (4) generates pulling force, and the rear propeller (3) and the front propeller (4) are both arranged on the output transmission shaft (23).

2. A tandem rudder propeller according to claim 1, wherein: the diameters of the rear propeller (3) and the front propeller (4) are the same or different.

3. A tandem rudder propeller according to claim 2, wherein: the rear propeller (3) and the front propeller (4) rotate in the same direction.

4. A tandem rudder propeller according to claim 3, wherein: the rear propeller (3) comprises a rear propeller hub (32), the rear propeller hub (32) is fixed on the output transmission shaft (23), and rear blades (31) are arranged on the outer side face of the rear propeller hub (32).

5. A tandem rudder propeller according to claim 3, wherein: the front propeller (4) comprises a front propeller hub (42), the front propeller hub (42) is fixed on the output transmission shaft (23), and front blades (41) are arranged on the outer side face of the front propeller hub (42).