RU2709962C1 - Annular electric propulsion device - Google Patents

Abstract

FIELD: shipbuilding.SUBSTANCE: invention relates to shipbuilding and can be used in designs of ship propulsors and devices for active control of floating facilities. Circular electro-propulsion-propulsive device includes electric motor, which consists of annular stator and annular rotor, as well as blades installed on rotor with organization of their rotation around own axes. Blades are installed with the possibility of their rotational motions around own axes at any specified angle, including continuous movements of blades.EFFECT: broader functional capabilities of the device and higher efficiency thereof.5 cl, 4 dwg

Description

The invention relates to the field of shipbuilding and can be used in the construction of ship propulsors and devices for active control of swimming means.

A propulsion device is known that includes an electric motor mounted on the axis of a water-flowing channel and a propeller mounted on an electric motor shaft (see EP Lebedev et al. “Means of active control of ships”, Leningrad, publ. Sudostroenie, 1969) , pp. 114-115). A disadvantage of the known device is its low efficiency due to the high hydraulic resistance of the electric motor in the water flow channel.

The closest to the claimed invention in technical essence and the achieved result is a ring electric motor-propulsion device (CEDDU), comprising an electric motor consisting of a ring stator and a ring rotor on which the blades are mounted (see patent RU No. 2187017, class F03D 3 / 00, 2002). A disadvantage of the known design is limited functionality. This device provides only the creation of emphasis and the regulation of its magnitude depending on the frequency of rotation of the blades.

The technical result of the present invention is to expand the functionality of the device and increase its efficiency

This result is achieved by the fact that in the known ring electric motor-propulsion device, including an electric motor, consisting of a ring stator and a ring rotor, as well as blades associated with the rotor and having one degree of freedom, the blades are installed in it with the possibility of performing rotational movements around own axes. The blades of the device can be placed either parallel to each other and the central axis of the device or at an angle to it, or is in the same plane perpendicular to the central axis of the device. In the second case, the tops of the blades are directed towards the central axis of the device or to the side opposite from this axis. Rotational movements of the blades can be carried out in different directions, for example, using independent drive devices installed on each blade in the area of its attachment to the rotor and connected with an external control system. It should be noted that rotational movements can be organized both at a certain angle with subsequent fixation of the blade in this position, and continuous movement of the blade around its axis without stopping.

The organization of multidirectional rotational movements of the blades allows you to change the stop vector created by the device, which leads to a change in the direction of movement of the swimming means on which this device is installed. Rotational movements of the blades can be created using various mechanisms, for example, independent drive devices installed on each blade in the area of its attachment to the rotor, or using a hinged mechanical drive. Thus, the claimed technical solution provides an emphasis and simultaneously serves as a steering device.

The invention is illustrated by graphic materials, where in FIG. 1, 2 shows CEDDU with blades located perpendicular to the central axis of the device, and in FIG. 3, 4 - KEDDU with blades mounted parallel to the central axis of the device and at an angle to it. The following notation is used on these figures:

1 - ring rotor;

2 - ring stator;

3 - blade;

4 - the central axis of the device;

5 - drive device;

6 - top of the blade;

7 - axis of the blade;

8 - axis of the drive device.

The ring electromotive-propulsion device consists (see Figures 1-4) of a fixed stator 1, on which a movable rotor 2 with blades 3 mounted on it is placed with the possibility of performing rotational movements around its own axes. The blades in space can be located both in the same plane (Fig. 1, 2) perpendicular to the central axis 4 of the device, and parallel to each other and parallel to the central axis 4 of this device (Fig. 3) or at an angle α to it (Fig. 4). In the first case, the tops 6 of the blades 3 can be directed towards the central axis 4 (Fig. 1) or to the side opposite from the central axis 4 of the device (Fig. 2). Rotational movements of the blades 3 can be carried out using various mechanisms, for example, drive devices 5, for example, electric motors mounted on each blade 3 in the region of its attachment to the rotor 2. For this, a cavity is made in the rotor, in which the axis of the drive device 8 and the axis of the blade 7. The rotational movement from axis 8 to axis 7 can be transmitted using an angular gear (not shown in the figure) or in another way. When the axis 8 of the drive device 5 is rotated, the axis 7 of the blade 3 rotates. The power supply to the devices 5 is made through a sliding contact (not shown in the figures). As a drive device can also be used articulated mechanical drive having a more complex structure, in contrast to the ring drive device 5.

CEDDU works as follows. When power is supplied to the QEDDU, its rotor 2 begins to rotate with the blades 3, creating emphasis and providing translational movement to the swimming means. If necessary, a signal is supplied to the drive device 5, the blades 3 are rotated and, due to a change in the angle of attack in the flow, create a force whose vector does not coincide with the direction of movement of the swimming means, which ensures a change in the direction of its movement, that is, CEDDU also acts as an active device managing this tool. With the continuous rotation of the blades around its axis (possibly multidirectional rotation of both one blade and each blade), it becomes possible for the swimming means, on which the inventive device is installed, to perform complex maneuvers, providing a continuous change in the course of the swimming means.

Using the proposed technical solution allows you to expand its functionality by changing the thrust vector, as well as increase efficiency devices due to the exclusion of additional steering mechanisms.

Claims (5)

1. An annular electric motor-propulsion device comprising an electric motor consisting of an annular stator and an annular rotor, as well as blades mounted on the rotor with the organization of their rotation around their own axes, characterized in that the blades are installed with the possibility of them to perform rotational movements around their own axes at any given angle, including continuous motion of the blades. 2. The ring electric motor-propulsion device according to claim 1, characterized in that the blades are placed parallel to each other and to the central axis of the device or at an angle to it. 3. The ring electric motor-propulsion device according to claim 1, characterized in that the rotational movements of the blades are carried out using independent drive devices installed on each blade in the region of its attachment to the rotor. 4. The ring electric motor-propulsion device according to claim 3, characterized in that the independent drive devices are connected to an external control system. 5. The ring electric motor-propulsion device according to claim 3, characterized in that the independent drive devices are configured to give the blades rotational movements around their own axes in different directions.

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