CN107672774B - Lightweight structure device for airship motor propeller - Google Patents

Abstract

The invention relates to a lightweight structural device for an airship motor propeller, which includes an airship capsule body and a propulsion motor, and the propeller is installed on the output shaft of the propulsion motor. On the base, the tail end of the truss is fixed to the airship capsule through the capsule restraint belt. The invention has the advantages of simple and reasonable structure, light weight, firm structure and easy assembly, which helps to give full play to the performance of the aerostat.

Description

Lightweight structure device for airship motor propeller

technical field

The invention relates to a lightweight structure device of an airship motor propeller.

Background technique

With people's continuous exploration of the aerospace field, and some shortcomings of aircraft and satellites in the aerospace field, research on high-altitude aerostats has become more and more popular and has extremely high economic and strategic value. The high-altitude aerostat (airship) can realize the high-altitude long-term residence that the aircraft cannot realize, and can realize the fixed-point residence that the satellite cannot realize. In civilian use, it can replace synchronous satellites for communication, fixed-point monitoring, scientific experiments, etc. In military use, it can be used as a general-purpose platform with functions such as military communication, long-distance investigation, intelligence, navigation, and early warning. However, when the aerostat flies or stays in the sky, it needs a power mechanism to propel or fine-tune its resident position. The disadvantages of the existing aerostat power mechanism are that the installation structure is more complicated, the weight is heavier, or the mass It is lighter, but the structural firmness is poor. The above-mentioned shortcomings affect the full play of the performance of the aerostat to a certain extent.

Contents of the invention

The object of the present invention is to provide a lightweight structure device for airship motor propeller, which has simple and reasonable structure, light weight and firm structure.

The technical scheme that realizes the object of the present invention:

A lightweight structural device for an airship motor propeller, comprising an airship capsule, a propulsion motor, and a propeller mounted on the output shaft of the propulsion motor, characterized in that a truss is provided, the motor base is fixed to the head end of the truss, and the propulsion motor is installed on the motor base, The tail end of the truss is fixed to the airship capsule through the capsule restraint belt.

Furthermore, the truss is composed of multiple main pipes, multiple branch pipes, and multiple connecting pipes. The converging points of the multiple main pipes are fixed to the base of the motor, and the tail ends of the main pipes are connected to the connecting pipes. There is a certain distance between the connecting pipes and the main pipe. Included angle, the connecting pipe is located on the outside of the airship capsule, and the capsule restraint belt passes through the connecting pipe and is fixed to the airship capsule; branch pipes are connected between the main pipes and between the main pipe and the connecting pipe.

Further, the head end of the main pipe is provided with a first main pipe connector for connection and fixation with the motor base, the middle part of the main pipe is provided with a second main pipe connector for connection and fixation with branch pipes; the tail end of the main pipe is provided with a second main pipe connector. Three main pipe connectors, used to fix with the connecting pipe; branch pipe connectors are provided at both ends of the branch pipe, used to connect and fix with the main pipe or connecting pipe; the connecting pipe is provided with connecting pipe connectors, used for fixing with the main pipe or branch pipe .

Further, the main pipe, branch pipes, and connecting pipes are connected to each other by bolts and nuts, and the main pipe and the motor base are connected to each other by bolts and nuts.

Further, there are 4 main pipes and 3 connecting pipes.

Further, the truss is made of carbon fiber material.

Further, the motor base is made of aluminum alloy.

Further, the capsule restraint band is made of polymer composite material, and the capsule restraint band is sutured and connected with the airship capsule.

Preferably, the motor base is made of superhard aluminum alloy 7075.

The beneficial effect that the present invention has:

The invention is provided with a truss, the motor base is fixed to the head end of the truss, the propulsion motor is installed on the motor base, and the tail end of the truss is fixed to the airship capsule through a capsule restraint belt. The bladder restraint belt of the invention is flexibly connected with the airship bladder, so that the structure has better impact resistance. The invention has the advantages of simple and reasonable structure, light weight, firm structure and easy assembly, which helps to give full play to the performance of the aerostat.

The truss of the present invention is composed of a plurality of main pipes, a plurality of branch pipes, and a plurality of connecting pipes. The converging parts of the head ends of the main pipes are fixed with the base of the motor, and the tail ends of the main pipes are connected with the connecting pipes. angle, the connecting pipe is located outside the airship capsule, and the capsule restraint belt passes through the connecting pipe and is fixed to the airship capsule; there are branch pipes connected between the main pipes, and between the main pipe and the connecting pipe, and the main pipe, branch pipes, and connecting pipes are connected through the The parts and bolts and nuts are connected to each other, which further ensures the stability of the structure, excellent mechanical properties, and simple and easy assembly.

The truss of the present invention is made of carbon fiber material, the motor base is made of aluminum alloy material, the capsule restraint belt is made of polymer composite material, and the capsule restraint belt is stitched and connected with the airship capsule, which further ensures that the structure of the present invention is lightweight, High strength characteristics.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the present invention;

Fig. 2 is a structural schematic diagram of the connecting part of the main pipe and the branch pipe of the present invention.

Detailed ways

As shown in Figure 1 and Figure 2, the propeller 2 is installed on the output shaft of the propulsion motor, and a truss 1 is provided. The motor base 3 is fixed to the head end of the truss 1, the propulsion motor is installed on the motor base 3, and the tail end of the truss 1 is restrained by a capsule The belt is fixed with the airship capsule. The truss 1 is composed of multiple main pipes 1-1, multiple branch pipes 1-2, and multiple connecting pipes 1-3. In this embodiment, 4 main pipes and 3 connecting pipes are used, and the diameter of the main pipes and connecting pipes is 38mm , branch pipe diameter 29.6mm.

The head ends of multiple main pipes are fixed to the base 3 of the motor, the tail end of the main pipe 1-1 is connected to the connecting pipe 1-3, and there is a certain angle between the connecting pipe 1-3 and the main pipe 1-1, and the connecting pipe 1-1 3 is located on the outside of the airship capsule, and the capsule restraint belt passes through the connecting pipe 1-3 and is fixed to the airship capsule; branch pipes are connected between the main pipes and between the main pipe and the connecting pipe. As shown in Figure 2, the head end of the main pipe is provided with a first main pipe connector 1-11 for connecting and fixing with the motor base 3, and the middle part of the main pipe is provided with a second main pipe connector 1-12 for connecting with the branch pipe 1-2 is connected and fixed; the end of the main pipe is provided with a third main pipe connector for fixing with the connecting pipe 1-3; branch pipe connectors 1-21 are provided at both ends of the branch pipe for connecting with the main pipe or the connecting pipe Fixed; the connecting pipe is provided with a connecting pipe connector for fixing with the main pipe or branch pipe. The main pipe, the branch pipe and the connecting pipe are connected to each other through bolts and nuts, and the main pipe and the motor base are connected to each other through bolts and nuts.

During implementation, the truss 1 is made of carbon fiber material, and the motor base 3 is made of superhard aluminum alloy 7075. The capsule restraint band is made of polymer composite material, and the capsule restraint band is sutured and connected with the airship capsule.

When assembling, you need to do the following preparatory work:

First cut the branch pipe with a diameter of 29.6mm according to the design size, and then use special glue to bond the upper branch pipe connector (joint) at both ends to ensure that the distance between the centers of the two joints is equal to the design distance. After the bonding is completed, these branch pipes are stacked neatly and baked in the oven until the glue is completely bonded and firm.

After the branch pipe is out of the furnace, start the overall assembly work. According to the size requirements of the drawing design, glue the main pipe connector to the appropriate position of the main pipe, then connect the branch pipe and the main pipe together, and install the motor base on the place where the main pipe converges. At the top, each part is fastened with fasteners.

After the entire truss is assembled, it enters the oven and bakes until the glue is completely bonded. After being released from the oven, the propeller and motor are assembled with the carbon fiber truss according to the design and technical requirements of the drawings.

Finally, the assembled components are connected with the airship capsule with the capsule restraint belt.

Claims (7)

1. a kind of dirigible motor helical paddle light structures device, including dirigible utricule, propulsion electric machine, filled on propulsion electric machine output shaft There is propeller, it is characterised in that: it is equipped with truss, motor base is fixed with truss head end, and propulsion electric machine is mounted on motor base, Truss tail end is fixed by utricule restraint strap and dirigible utricule；

Truss is made of more main pipes, more branch pipes, more connecting tubes, solid with motor base at more main pipe head end convergences Fixed, the tail end of main pipe is taken in succession, in a certain angle between connecting tube and main pipe, and connecting tube is located at the outer of dirigible utricule Side, utricule restraint strap pass through connecting tube and fix with dirigible utricule；Between main pipe, branch is connected between main pipe and connecting tube Pipe；

Main pipe head end is equipped with the first trunk pipe connections, and for being connected and fixed with motor base, second is equipped in the middle part of main pipe Trunk pipe connections, for being connected and fixed with branch pipe；Main pipe tail end is equipped with third trunk pipe connections, for solid with connecting tube It is fixed；Branch pipe both ends are equipped with branch pipe connecting piece, for being connected and fixed with main pipe or connecting tube；Connecting tube is connected equipped with connecting tube Part, for being fixed with main pipe or branch pipe.

2. dirigible motor helical paddle light structures device according to claim 1, it is characterised in that: main pipe, branch pipe, company Adapter tube is connected with each other by bolt, nut, and main pipe and motor base are connected with each other by bolt, nut.

3. dirigible motor helical paddle light structures device according to claim 2, it is characterised in that: be equipped with 4 main pipes, 3 connecting tubes.

4. according to claim 1 to dirigible motor helical paddle light structures device described in 3 any one, it is characterised in that: purlin Frame is made of carbon fibre material.

5. dirigible motor helical paddle light structures device according to claim 4, it is characterised in that: motor base is closed by aluminium Golden material is made.

6. dirigible motor helical paddle light structures device according to claim 5, it is characterised in that: utricule restraint strap uses Polymer composite is made, and utricule restraint strap and the suture of dirigible utricule connect.

7. dirigible motor helical paddle light structures device according to claim 6, it is characterised in that: motor base is by superhard Aluminium alloy 7075 is made.