阅读说明：本技术 一种组合推进器 (combined propeller ) 是由 宋显成 赵国平 袁静国 赵曾武 岳彩锐 艾贤祖 于 2019-07-26 设计创作，主要内容包括：一种组合推进器,包括导管、轮缘电机、螺旋桨、前置定子、仿生推进电机、传动机构、仿生尾鳍；所述轮缘电机和前置定子均安装在所述导管上,所述螺旋桨与所述轮缘电机的转子固定连接,所述前置定子位于所述螺旋桨的上游；所述仿生推进电机安装在所述前置定子上；仿生推进电机通过传动机构带动仿生尾鳍运动；所述仿生尾鳍位于所述螺旋桨的下游。本发明实现了轮缘推进和仿生推进的一体化设计,属于推进器技术领域。(a combined propeller comprises a guide pipe, a rim motor, a propeller, a front stator, a bionic propulsion motor, a transmission mechanism and a bionic tail fin; the rim motor and the front stator are both arranged on the guide pipe, the propeller is fixedly connected with a rotor of the rim motor, and the front stator is positioned at the upstream of the propeller; the bionic propulsion motor is arranged on the front stator; the bionic propulsion motor drives the bionic tail fin to move through a transmission mechanism; the bionic tail fin is positioned at the downstream of the propeller. The invention realizes the integrated design of rim propulsion and bionic propulsion, and belongs to the technical field of propellers.)

1. A combined propeller is characterized by comprising a guide pipe, a rim motor, a propeller, a front stator, a bionic propulsion motor, a transmission mechanism and a bionic tail fin;

The rim motor and the front stator are both arranged on the guide pipe, the propeller is fixedly connected with a rotor of the rim motor, and the front stator is positioned at the upstream of the propeller; the bionic propulsion motor is arranged on the front stator; the bionic propulsion motor drives the bionic tail fin to move through a transmission mechanism; the bionic tail fin is positioned at the downstream of the propeller.

2. The combined propeller as recited in claim 1, wherein the propeller is hubless, and the axial position of the propeller is a hollow area; the bionic propulsion motor is arranged in the hollow area and drives the bionic tail fin to move through a transmission mechanism.

3. The combined propeller of claim 1, wherein the rim motor comprises a motor rotor, a motor stator, the motor stator is mounted in the inner cavity of the conduit, and the motor rotor ring is fixedly connected with the propeller.

4. A combined thruster according to claim 1, characterised in that the front stator is adapted to guide the propeller.

5. The combined propeller of claim 1, wherein the transmission mechanism comprises a slide rail, a connecting rod, a lead screw; the sliding rail is fixedly arranged on the guide pipe; the bionic propulsion motor is connected with the screw rod; the lead screw is connected with one end of a connecting rod, the other end of the connecting rod is connected with the bionic tail fin, a rotating shaft is arranged in the middle of the connecting rod, and the rotating shaft is arranged in a hole of the sliding rail.

6. The combined propeller of claim 1, wherein the bionic skeg is made of an elastic material.

7. The combined propeller as recited in claim 5, wherein the connecting rod can rotate around the rotating shaft, and can slide back and forth along the slide rail.

8. The combined propeller as recited in any one of claims 1 to 7, wherein the bionic tail fin is a hydrodynamic profile simulating a fish tail fin.

9. A combined thruster according to any one of claims 1 to 7 characterised in that the bionic skeg is also capable of generating pitching and or yawing forces.

10. A combined propeller as claimed in any one of claims 1 to 7, further comprising water lubricated bearings mounted between the rim of the propeller and the duct.

Technical Field

The invention relates to a combined propeller, in particular to an electric propeller which can be applied to ships, unmanned boats, underwater robots, submarines, torpedoes and other surface and underwater vehicles.

Background

In the world, the competition of marine resources and the counter-balance of marine military are increasingly violent, the technical development of marine equipment is advanced, the mission profile of an aircraft is wider and wider, the mission is more and more complex, and the propeller is urgently required to have high performance and be applicable to a wide range of navigational speeds. However, it is increasingly difficult for existing propeller technologies to meet these requirements. For example, the propulsion mode of the traditional propeller is limited by cavitation, is difficult to achieve high-speed and high-efficiency propulsion, and has the defects of poor maneuverability, large inertia, large vibration, large noise and the like. The emerging pump-jet propeller, particularly the shaftless rim pump-jet propeller, has compact structure and low vibration noise, but has low efficiency during low-speed navigation. Other straight wing propellers, such as straight wing propellers, are flexible in manipulation, but are low in efficiency, complex in structure and vulnerable to blade damage. The bionic propeller has the advantages of high efficiency and low noise under the condition of low-speed navigation, but the requirement of high-speed and high-efficiency propulsion is difficult to meet.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the combined propeller comprises a guide pipe, a rim motor, a propeller, a front stator, a bionic propulsion motor, a transmission mechanism and a bionic tail fin; the rim motor and the front stator are both arranged on the guide pipe, the propeller is fixedly connected with a rotor of the rim motor, and the front stator is positioned at the upstream of the propeller; the bionic propulsion motor is arranged on the front stator; the bionic propulsion motor drives the bionic tail fin to move through a transmission mechanism; the bionic tail fin is positioned at the downstream of the propeller. The invention belongs to the technical field of propellers.

the purpose of the invention is realized by the following technical scheme:

A combined propeller comprises a guide pipe, a rim motor, a propeller, a front stator, a bionic propulsion motor, a transmission mechanism and a bionic tail fin;

the rim motor and the front stator are both arranged on the guide pipe, the propeller is fixedly connected with a rotor of the rim motor, and the front stator is positioned at the upstream of the propeller; the bionic propulsion motor is arranged on the front stator; the bionic propulsion motor drives the bionic tail fin to move through a transmission mechanism; the bionic tail fin is positioned at the downstream of the propeller.

In the combined propeller, the propeller is not provided with a hub, and the axis position of the propeller is a hollow area; the bionic propulsion motor is arranged in the hollow area and drives the bionic tail fin to move through a transmission mechanism.

Above-mentioned combination propeller, rim motor includes motor rotor, motor stator installs in the inner chamber of pipe, motor rotor ring links firmly with the screw.

In the above combined propeller, the front stator may guide the flow of the propeller.

In the combined propeller, the transmission mechanism comprises a slide rail, a connecting rod and a lead screw; the sliding rail is fixedly arranged on the guide pipe; the bionic propulsion motor is connected with the screw rod; the lead screw is connected with one end of a connecting rod, the other end of the connecting rod is connected with the bionic tail fin, a rotating shaft is arranged in the middle of the connecting rod, and the rotating shaft is arranged in a hole of the sliding rail.

In the combined propeller, the bionic tail fin is made of elastic materials.

In the combined propeller, the connecting rod can rotate around the rotating shaft, and can slide along the sliding rail in a reciprocating manner.

In the combined propeller, the bionic tail fin is in a hydrodynamic shape of the fish-like tail fin.

The bionic tail fin can generate pitching force and/or yawing force.

The combined propeller further comprises a water lubrication bearing, and the water lubrication bearing is arranged between the rim of the propeller and the guide pipe.

Compared with the prior art, the invention has the following beneficial effects:

(1) The invention discloses a combined propeller, which organically integrates a duct, a propeller, a front stator, a motor, a mechanism and a bionic tail fin together, realizes the integrated design of rim propulsion and bionic propulsion, and can meet the more flexible propulsion requirement of an aircraft.

(2) the invention can realize a plurality of propulsion modes, can complement the advantages of the two propulsion modes, and can play the excellent propulsion performance in a wide range of navigational speed. When the two propulsion modes operate simultaneously, the wake vortex of the propeller can promote the generation of the three-dimensional wake fin desquamation body vortex, thereby increasing the thrust, achieving the effect of absorbing the wake flow energy of the propeller and improving the propulsion efficiency. The bionic propulsion mode can be used only at low speed and/or ultra-low speed, and the advantage of high-efficiency propulsion at low speed of the bionic propulsion is exerted. At super high speed, only the rim propulsion mode can be used, and the high-speed propulsion performance advantage of rim propulsion is exerted.

(3) The bionic tail fin can also realize the effect of a steering engine, can realize pitching and/or yawing of the aircraft by matching with rim propulsion, saves the space for installing the steering engine for the aircraft, and enables the aircraft to be more compact.

(4) The bionic tail fin is of a structure imitating the appearance of a fish tail fin and is made of an elastic material, the coordinated motion process of flexible deformation of the fish tail fin and floating and sinking swing of the tail fin can be simulated, and the functions of increasing thrust and increasing efficiency are achieved.

(5) the combined propeller inherits the advantages of small vibration noise, strong maneuverability and the like of bionic propulsion and shaftless propulsion, and has more controllability and flexibility after combination.

drawings

FIG. 1 is a schematic sectional view of example 2 of the present invention;

FIG. 2 is a schematic side view of example 2 of the present invention;

Fig. 3 is a front view schematically showing embodiment 2 of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.