CN203222110U

CN203222110U - Small-size unmanned helicopter with up-mounted tail rotor

Info

Publication number: CN203222110U
Application number: CN2013201676008U
Authority: CN
Inventors: 张硕; 沈建文; 郭广宇
Original assignee: Wuxi Hanhe Aviation Technology Co Ltd
Current assignee: Wuxi Hanhe Aviation Technology Co Ltd
Priority date: 2013-04-03
Filing date: 2013-04-03
Publication date: 2013-10-02
Anticipated expiration: 2023-04-03

Abstract

The utility model provides a small-size unmanned helicopter with an up-mounted tail rotor. The small-size unmanned helicopter comprises a helicopter main body, a main rotor, a landing gear, a tail rotor supporting frame and the tail rotor, wherein the upper end of the helicopter main body is connected with the main rotor; the lower end of the helicopter main body is connected with the landing gear; the rear end of the helicopter main body is connected with the tail rotor through the tail rotor supporting frame; the front end of the tail rotor supporting frame is connected with the helicopter main body; the rear end of the tail rotor supporting frame is connected with the tail rotor; and the tail rotor supporting frame is upwards bent at a part, which is 1/4 of the full length of the rear end, and a bending angle is 45 degrees. According to the small-size unmanned helicopter with the up-mounted tail rotor, the height of a tail rotor rotating surface is increased, so that the landing safety is improved, and the flying stability is also improved; and the tail rotor is independently driven by a tail motor, so that the flying stability is further improved.

Description

A kind of small-sized depopulated helicopter of being furnished with the inhead type tail rotor

Technical field

The utility model relates to a kind of small-sized depopulated helicopter of being furnished with the inhead type tail rotor, belongs to the mechanical device field.

Background technology

General small-sized depopulated helicopter adopts the horizontal tail rotor, because the tail-rotor plane of revolution is lower, the collision with ground takes place easily in the landing process.And because the tail-rotor axial plane is lower than the main rotor plane of revolution, the following suction stream of main rotor is bigger to the influence of tail-rotor.

The utility model content

The technical problems to be solved in the utility model is to overcome existing defective, and a kind of small-sized depopulated helicopter of being furnished with the inhead type tail rotor is provided, and improves the safety of landing, strengthens the stability of flight.

In order to solve the problems of the technologies described above, the utility model provides following technical scheme:

A kind of small-sized depopulated helicopter of being furnished with the inhead type tail rotor, comprise fuselage main body, main rotor, alighting gear, tail rotor bracing frame and tail rotor, fuselage main body upper end connects main rotor, fuselage main body lower end connects alighting gear, the fuselage body rear connects tail rotor by the tail rotor bracing frame, the tail rotor supporting framing front end connects the fuselage main body, and the rear end connects tail rotor; The tail rotor bracing frame is the upwards bending of 1/4 total length place in distance rear end length, and bending angle is 45 °.

Further, tail rotor is equipped with micro-machine.

A kind of small-sized depopulated helicopter of being furnished with the inhead type tail rotor of the utility model improves the height of tail-rotor plane of revolution, thereby has improved the safety of landing, has strengthened the stability of flight simultaneously; Tail-rotor is driven separately by the afterbody motor, has improved the reliability of flight.

Description of drawings

Accompanying drawing is used to provide further understanding of the present utility model, and constitutes the part of specification sheets, is used from explanation the utility model with embodiment one of the present utility model, does not constitute restriction of the present utility model.In the accompanying drawings:

Fig. 1 is a kind of structural representation of being furnished with the small-sized depopulated helicopter of inhead type tail rotor of the utility model.

The specific embodiment

Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the utility model, and be not used in restriction the utility model.

As shown in Figure 1, a kind of small-sized depopulated helicopter of being furnished with the inhead type tail rotor, comprise fuselage main body 1, main rotor 2, alighting gear 3, tail rotor bracing frame 4 and tail rotor 5, fuselage main body 1 upper end connects main rotor 2, fuselage main body 1 lower end connects alighting gear 3, fuselage main body 1 rear end connects tail rotor 5 by tail rotor bracing frame 4, and tail rotor bracing frame 4 front ends connect fuselage main body 1, and the rear end connects tail rotor 5; Tail rotor bracing frame 4 is the upwards bending of 1/4 total length place in distance rear end length, and bending angle A is 45 °.

The tail rotor bracing frame is bending upwards, thereby will put on the tail rotor, makes the elevated height of tail-rotor plane of revolution, not only avoids the collision problem in the landing process, has also reduced the following suction stream of main rotor to the influence of tail-rotor.

Tail rotor is equipped with micro-machine, has simplified the mechanical transmission structure from the aircraft main rotor to tail rotor, has reduced a lot of fixing and Transmissions, has reduced the possibility that physical construction breaks down, thereby has improved the reliability of aircraft flight.

In addition, small-sized depopulated helicopter is when carrying out the pesticide spraying operation, and the vaporific soup that main rotor evokes can drift about backward, and wherein some can be involved in the rotating mechanism of tail rotor, because soup is corrosive, can cause physical construction to seize up.The inhead type tail rotor, the tail rotor centre of gration is higher than the main rotor centre of gration, has avoided the corrosion of soup to the tail rotor mechanical structured member to a great extent.

It should be noted that at last: the above only is preferred embodiment of the present utility model, be not limited to the utility model, although with reference to previous embodiment the utility model is had been described in detail, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. small-sized depopulated helicopter of being furnished with the inhead type tail rotor, comprise fuselage main body, main rotor, alighting gear, tail rotor bracing frame and tail rotor, described fuselage main body upper end connects described main rotor, described fuselage main body lower end connects described alighting gear, described fuselage body rear connects described tail rotor by described tail rotor bracing frame, it is characterized in that:

Described tail rotor supporting framing front end connects the fuselage main body, and the rear end connects tail rotor;

Described tail rotor bracing frame is the upwards bending of 1/4 total length place in distance rear end length, and bending angle is 45 °.

2. a kind of small-sized depopulated helicopter of being furnished with the inhead type tail rotor according to claim 1, it is characterized in that: described tail rotor is equipped with micro-machine.