Coaxial reverse propeller power device assembly with double external rotation motors and vertical take-off and landing aircraft

Abstract

The invention relates to the field of aircraft power devices, in particular to a double-outward-rotating-motor coaxial reverse propeller power device assembly and a vertical take-off and landing aircraft, which are characterized by comprising an aircraft body connecting fixing seat, a motor connecting fixing seat and positioning screws and are used for mounting and fixing outward-rotating motors and hollow-shaft outward-rotating motors. The connecting machine body fixing base is composed of a connecting machine body flange and a positioning shaft sleeve, and the positioning shaft sleeve is provided with two fastening holes with threads. The motor fixing seat is composed of a hollow main shaft, a front motor fixing flange and a rear motor fixing flange, the front end of the hollow main shaft is provided with the front motor fixing flange, the front part of the hollow main shaft is provided with the rear motor fixing flange, and a structure like a Chinese character'gan 'is formed; the hollow main shaft is provided with a power line channel, a front end outlet of the power line channel is located between the front motor fixing flange and the rear motor fixing flange 7, and a rear end outlet of the power line channel leads into the machine body.

Description

Technical Field

[0001] The present invention belongs to the technical field of aircraft power devices, and particularly relates to a coaxial contra-rotating power device assembly for double external-rotor motors and a vertical takeoff and landing aircraft. Background Art

[0002] The common coaxial contra-rotating power device for double motors has upper and lower propeller blades, with a structure of a middle crossbar for fixing and connecting power lines, which cannot meet the requirements of the coaxial contra-rotating power device with the nose in the front. In order to fix the two motors and solve the power line layout, there is a need for more options. Therefore, a coaxial contra-rotating power device assembly for double external-rotor motors and a vertical takeoff and landing aircraft are proposed. Summary of the Invention

[0003] For a coaxial contra-rotating power device assembly for double external-rotor motors and a vertical takeoff and landing aircraft of the present invention, a coaxial contra-rotating power device assembly for double external-rotor motors is used to fix two external-rotor motors. The present invention provides the following technical solutions: On one hand, the present invention provides a coaxial contra-rotating power device assembly for double external-rotor motors, which includes a fuselage connection fixing seat, a motor connection fixing seat, and positioning screws, and is used to install and fix an external-rotor motor and a hollow-shaft external-rotor motor.

[0004] Preferably, the fuselage connection fixing seat is composed of a fuselage flange and a positioning bushing. One side of the fuselage flange is closely attached to the front end of the fuselage and is fixed to the fuselage by the positioning screws passing through the flange screw holes. The other side of the fuselage flange is provided with the positioning bushing, and the positioning bushing is provided with two threaded fastening holes.

[0005] Preferably, the motor connection fixing seat is composed of a hollow main shaft, a front motor fixing flange, and a rear motor fixing flange. The front motor fixing flange is provided at the front end of the hollow main shaft, and the rear motor fixing flange is provided at a position close to the front of the hollow main shaft, forming a configuration like the Chinese character 'gan'. There is a certain interval between the front motor fixing flange and the rear motor fixing flange to provide a certain operating space when using the positioning screws.

[0006] Preferably, the hollow main shaft is provided with a power line channel. The front end outlet of the power line channel is located between the front motor fixing flange and the rear motor fixing flange, and the rear end outlet of the power line channel leads to the inside of the fuselage.

[0007] Preferably, the front motor fixing flange is connected forward to fix the external-rotor motor, and the rear motor fixing flange is connected backward to fix the hollow-shaft external-rotor motor.

[0008] Preferably, the external-rotor motor is composed of a first winding inner stator, a first outer rotor, a first rotor shaft, and two bearings arranged conventionally. The first outer rotor is connected forward to the front propeller hub.

[0009] Preferably, the hollow shaft outgoing motor is composed of a No. 2 winding inner stator, a No. 2 outer rotor, a No. 2 hollow rotor shaft and two bearings basically according to the conventional arrangement, the difference being that the No. 2 hollow rotor shaft is a large-aperture hollow shaft that can pass through the hollow main shaft, and the No. 2 outer rotor is backwardly connected to the rear hub.

[0010] Preferably, the specific connection method between the front motor fixing flange and the external rotating motor is that the front motor fixing flange is connected and fixed to the stator inside the No. 1 winding forwardly by using the positioning screws through the flange screw holes; the specific connection method between the rear motor fixing flange and the hollow shaft external rotating motor is that the rear motor fixing flange is connected and fixed to the stator inside the No. 2 winding backwardly by using the positioning screws through the flange screw holes.

[0011] Preferably, the hollow main shaft is inserted into the positioning sleeve and fixed with the positioning screw through the threaded fastening hole. The positioning sleeve and the hollow main shaft can be disassembled so that the hollow shaft external rotating motor can be installed between the connecting body flange and the rear motor fixing flange.

[0012] Preferably, the outer motor is provided with a front motor power line, and the front motor power line passes through the power line channel into the machine body.

[0013] Preferably, the hollow shaft outward rotating motor is provided with a rear motor power line, and the rear motor power line passes into the machine body through the power line channel.

[0014] On the other hand, the present invention also provides a vertical take-off and landing aircraft, including the dual outboard motor coaxial counter-propeller power device assembly as described above.

[0015] The beneficial effects of the present invention are: This dual-outer motor coaxial counter-propeller power device assembly installs and fixes the outward motor and the hollow shaft outward motor by connecting the fuselage fixing seat and the motor fixing seat, solving the problem that the structure of fixing the dual-motor coaxial upper and lower propeller wings to the middle cross bar and connecting the power cord cannot meet the needs of the front-mounted coaxial counter-propeller power device at the nose, providing an additional option for the power setting of the aircraft. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0017] In the attached picture: Figure 1 Schematic diagram of vertical take-off and landing aircraft Figure 2 for Figure 1 Schematic diagram of the structure at A in the middle Figure 3 Schematic diagram of the dual outboard motor coaxial reverse propeller power unit assembly Figure 4 A vertical section diagram of a dual outboard motor coaxial counter-propeller power unit assembly Figure 5 This is the decomposition and three-dimensional schematic diagram of the dual outboard motor coaxial reverse propeller power unit assembly In the figure: 1, body 2, front propeller hub 3, rear propeller hub 4, No. 1 rotor shaft 5, No. 1 outer rotor 6, No. 1 winding inner stator 7, No. 2 outer rotor 8, No. 2 winding inner stator 9, hollow main shaft 10, No. 2 hollow rotor shaft 11, body flange 12, power line channel 13, front motor power line 14, rear motor power line 15, positioning screw 16, front motor fixing flange 17, rear motor fixing flange 18, positioning sleeve 19, flange screw hole 20, wire fastening hole 21, bearing 22, outer rotor motor 23, hollow shaft outer rotor motor The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0018] Example: Figure 1 , Figure 2 , Figure 5 As shown, the outboard motor 22 and the hollow shaft outboard motor 23 are assembled using a dual outboard motor coaxial counter-propeller power device assembly.

[0019] The first step is to fix the body flange 11 to the front end of the body 1 through the flange screw holes 19 with the positioning screws 15.

[0020] Furthermore, the second winding inner set 8 of the hollow shaft external rotary motor 23 is inserted into the hollow main shaft 9 toward the rear motor fixing flange 17 , and the second winding inner set 8 is fixed by using the positioning screw 15 through the flange screw hole 19 on the motor fixing flange 17 .

[0021] Furthermore, the hollow main shaft 9 is inserted into the positioning sleeve 18 , and the positioning screws 15 are used to fix the hollow main shaft 9 through the flange screw holes 19 .

[0022] Furthermore, the inner stator 6 of the No. 1 winding on the outer rotating motor 22 is oriented toward the front motor fixing flange 16 , and the inner stator 6 of the No. 1 winding is fixed by using the positioning screws 15 through the flange screw holes 19 on the front motor fixing flange 16 .

[0023] Furthermore, the front motor power line 13 connected to the stator 6 in the first winding is introduced into the machine body 1 through the power line channel 12 .

[0024] Furthermore, the rear motor power line 14 connected to the stator 8 in the second winding is introduced into the body 1 through the power line channel 12, and the assembly is completed.

[0025] The above description is only a specific embodiment of the present invention. The present invention is described in detail. The parts not described in detail are conventional technologies. For those skilled in the art, changes, modifications, substitutions and variations made under the principles and spirit of the present invention should fall within the scope of protection of the present invention.

Claims

1. A dual outer rotor motor coaxial reverse propeller power device assembly, characterized in that: It consists of a connecting body fixing seat, a connecting motor fixing seat and positioning screws, and is used to install and fix the external rotation motor 22 and the hollow shaft external rotation motor 23. The connecting body fixing seat is composed of a connecting body flange 11 and a positioning shaft sleeve 18. One side of the connecting body flange 11 is closely attached to the front end of the body 1 and is fixed to the body 1 by the positioning screws 15 through the flange screw holes 19. The other side of the connecting body flange 11 is provided with the positioning shaft sleeve 18, and the positioning shaft sleeve 18 is provided with two threaded fastening holes 20; the connecting motor fixing seat is composed of a hollow main shaft 9, a front motor fixing flange 16 and a rear motor fixing flange 17. The front end of the hollow main shaft 9 is provided with the front motor fixing flange 16, and the rear motor fixing flange 17 is provided at a position close to the front of the hollow main shaft, forming a configuration like the character "gan". There is a certain interval between the front motor fixing flange 16 and the rear motor fixing flange 17 to provide a certain operating space when using the positioning screws 15; the hollow main shaft 9 is provided with a power cord channel 12, the front end outlet of the power cord channel 12 is located between the front motor fixing flange 16 and the rear motor fixing flange 17, and the rear end outlet of the power cord channel 12 leads to the inside of the body 1; the front motor fixing flange 16 is connected and fixed to the external rotation motor 22 forward, and the rear motor fixing flange 17 is connected and fixed to the hollow shaft external rotation motor 23 backward; the hollow main shaft 9 is inserted into the positioning shaft sleeve 18 and fixed by the positioning screws 15 through the threaded fastening holes 20. The positioning shaft sleeve 18 and the hollow main shaft 9 can be disassembled so that the hollow shaft external rotation motor 23 can be installed between the connecting body flange 11 and the rear motor fixing flange 17; the external rotation motor 22 is provided with a front motor power cord 13, and the front motor power cord 13 leads to the inside of the body 1 through the power cord channel 12; the hollow shaft external rotation motor 23 is provided with a rear motor power cord 14, and the rear motor power cord 14 leads to the inside of the body 1 through the power cord channel 12.

2. According to the dual external rotation motor coaxial counter-rotating propeller power device assembly described in claim 1, the specific connection method between the front motor fixing flange 16 and the external rotation motor 22 is that the front motor fixing flange 16 is connected and fixed to the inner stator 6 of the first winding forward by the positioning screws 15 through the flange screw holes 19; the specific connection method between the rear motor fixing flange 17 and the hollow shaft external rotation motor 23 is that the rear motor fixing flange 17 is connected and fixed to the inner stator 8 of the second winding backward by the positioning screws 15 through the flange screw holes 19.

3. A vertical take-off and landing aircraft, characterized in that: It includes the dual external rotation motor coaxial counter-rotating propeller power device assembly described in any one of claims 1-2.

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