CN214145681U

CN214145681U - Unmanned aerial vehicle engine throttle device

Info

Publication number: CN214145681U
Application number: CN202120089523.3U
Authority: CN
Inventors: 张爱平
Original assignee: Chongqing Aviation Control Technology Co ltd
Current assignee: Chongqing Aviation Control Technology Co ltd
Priority date: 2021-01-13
Filing date: 2021-01-13
Publication date: 2021-09-07
Anticipated expiration: 2031-01-13

Abstract

The utility model belongs to the technical field of the engine, a unmanned aerial vehicle engine throttle device is provided, the engine includes the crankcase, and the crankcase includes left and right box, and the throttle device includes: the first throttle body is assembled on the left box body and is provided with a first air inlet channel; the second throttle body is assembled on the right box body, is in one-to-one correspondence with the first throttle body, and is provided with a second air inlet channel; throttle valves rotatably provided in the first and second intake passages, respectively; a throttle shaft supporting the throttle valve; a motor for driving the throttle valve to open and close via the throttle valve shaft, wherein the axial lead of the output shaft is positioned in the combination surface of the left box body and the right box body; the middle part of the rotating arm is sleeved on an output shaft of the motor; and a transmission mechanism disposed between the rotary arm and the throttle shaft. The utility model discloses an unmanned aerial vehicle engine throttle device has reduced the configuration quantity of motor, the cost is reduced and engine weight has been alleviateed.

Description

Unmanned aerial vehicle engine throttle device

Technical Field

The utility model relates to an engine technical field, concretely relates to unmanned aerial vehicle engine throttle device.

Background

Among the engines of unmanned aerial vehicles, piston engines are commonly used for low-speed, small, short-range unmanned aerial vehicles. Piston engines include two-cylinder and four-cylinder engines, and most of them are two-cylinder engines.

Chinese patent application publication No. CN109098861A discloses an electronic control system with a single ECU separately controlled throttle, wherein an engine throttle body in the electronic control system is driven by an independent driving mechanism, and the driving mechanism is composed of a motor and a link mechanism. If the throttle valve driving mechanism in the electronic control system is used for a two-cylinder or four-cylinder engine, two or four electric motors are required, so that the cost is increased, and the weight of the engine is increased.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model aims at providing an unmanned aerial vehicle engine throttle device makes its configuration quantity that can reduce the motor to reduce cost and alleviate engine weight.

In order to realize above-mentioned purpose, the utility model provides an unmanned aerial vehicle engine throttle device, be provided with one on the engine at least the throttle device, the engine includes the crankcase, the crankcase includes left box and right box, the throttle device includes:

a first throttle body assembled to the left case and formed with a first intake passage;

the second throttle body is assembled on the right box body, is in one-to-one correspondence with the first throttle body, and is provided with a second air inlet channel;

throttle valves rotatably provided in the first and second intake passages, respectively;

a throttle shaft that supports the throttle valve;

a motor for driving the throttle valve to open and close via the throttle shaft, wherein the axial lead of the output shaft is positioned in the combined surface of the left box body and the right box body;

the middle part of the rotating arm is sleeved on the output shaft of the motor and rotates along with the output shaft of the motor; and

a transmission mechanism disposed between the rotary arm and the throttle shaft.

Further, the transmission mechanism includes:

one end of the connecting rod is connected with one end part of the rotating arm through a spherical pair; and

and the swing arm is fixedly connected with the throttle shaft and is also connected with the other end of the connecting rod through a spherical pair.

Further, the two transmission mechanisms are distributed around the axis of the motor in a centrosymmetric mode.

The utility model has the advantages that: the utility model provides a pair of unmanned aerial vehicle engine throttle device is through installing the motor at the middle part of crankcase to guarantee that the axial lead of the output shaft of motor is located the combination face of left box and right box, then two drive mechanism of rethread drive two throttle valve axles respectively and rotate, such a motor just can drive the switching of two throttle valves, thereby reduced the configuration quantity of motor, the cost is reduced and engine weight has been alleviateed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a perspective view of a throttle device according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of the throttle arrangement of fig. 1 mounted on an engine of an unmanned aerial vehicle.

Reference numerals:

10. a crankcase; 11. a left box body; 12. a right box body; 13. a bonding surface; 20. a first throttle body; 21. a first air intake passage; 30. a second throttle body; 31. a second intake passage; 40. a throttle valve; 50. a motor; 51. a shaft axis; 60. a rotating arm; 70. a transmission mechanism; 71. a connecting rod; 72. and (4) swinging arms.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience of description and simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1-2, the present embodiment provides a throttle device for an engine of an unmanned aerial vehicle, which is equipped with at least one throttle device on the engine. The engine comprises a crankcase 10, the crankcase 10 comprises a left box body 11 and a right box body 12, the left box body 11 and the right box body 12 are assembled into the crankcase 10 through box assembling bolts, and a combining surface 13 is arranged between the left box body 11 and the right box body 12 after the left box body 11 and the right box body 12 are assembled together, and the combining surface 13 is a plane.

The throttle device includes a first throttle body 20, a second throttle body 30, a throttle valve 40, a throttle shaft, a motor 50, a rotary arm 60, and a transmission mechanism 70.

The first throttle body 20 is fitted to the left case 11, and is formed with a first intake passage 21. The second throttle body 30 is fitted to the right housing 12, is provided in one-to-one correspondence with the first throttle body 20, and is formed with a second air intake passage 31.

One throttle valve 40 is provided in each of the first intake passage 21 and the second intake passage 31, and the throttle valve 40 is rotatable in the first intake passage 21 and the second intake passage 31. Each throttle flap 40 is fixedly connected to a throttle shaft which is rotatably mounted on the first throttle body 20 and the second throttle body 30 and which supports the throttle flap 40.

The motor 50 is arranged in the middle of the crankcase 10, each throttle valve device only comprises one motor 50, and the motors 50 are servo motors or steering engines. The motor 50 drives the throttle valve to open and close via the throttle shaft. The shaft axis 51 of the output shaft of the motor 50 is positioned in the combining surface 13 of the left box body 11 and the right box body 12.

The middle part of the rotating arm 60 is sleeved on the output shaft of the motor 50 and is fixedly connected with the output shaft of the motor 50, so as to rotate along with the output shaft of the motor 50.

The transmission mechanism 70 is disposed between the rotating arm 60 and the throttle shaft, and since there are two throttle shafts, there are two corresponding transmission mechanisms 70.

In the present embodiment, the motor 50 is installed in the middle of the crankcase 10, and the shaft axis 51 of the output shaft of the motor 50 is ensured to be located in the combining surface 13 of the left box 11 and the right box 12, and then the two throttle shafts are driven to rotate through the two transmission mechanisms 70 respectively. Thus, one motor 50 can drive the opening and closing of the two throttles.

When the above-described throttle apparatus is mounted on one engine, the engine in this embodiment is a two-cylinder engine. When the above throttle apparatus is mounted in two on the engine, the engine in the present embodiment is a four-cylinder engine. When more than two throttle valves are assembled on the engine, the rest can be done in the same way.

In one embodiment, the transmission mechanism 70 includes a link 71 and a swing arm 72. One end of the connecting rod 71 is connected with one end of the rotating arm 60 through a spherical pair, the other end is connected with the swing arm 72 through a spherical pair, and the connecting rods 71 in the two transmission mechanisms 70 are respectively hinged with the two ends of the rotating arm 60. The swing arm 72 is fixedly connected with the throttle shaft. When the connecting rod 71 drives the swing arm 72 to rotate, the swing arm 72 drives the throttle shaft to rotate together, so that the opening and closing control of the throttle valve is realized. The above-described transmission mechanism 70 is simple in structure.

In one embodiment, the two actuators 70 are arranged symmetrically about the axis of the motor 50. Due to the arrangement, on one hand, the sizes of the parts of the two transmission mechanisms 70 are consistent, the models of spare parts are reduced, and the management of the parts is convenient; on the other hand, the opening and closing degrees of the two throttle valves respectively located in the first intake passage 21 and the second intake passage 31 are kept uniform, so that the first intake passage 21 and the second intake passage 31 keep the same amount of intake air.

In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides an unmanned aerial vehicle engine throttle device, at least, be provided with one on the engine throttle device, the engine includes the crankcase, the crankcase includes left box and right box, its characterized in that: the throttle valve device includes:

a throttle shaft that supports the throttle valve;

2. The unmanned aerial vehicle engine throttle device of claim 1, characterized in that: the transmission mechanism includes:

3. The unmanned aerial vehicle engine throttle device of claim 2, characterized in that: the two transmission mechanisms are distributed around the axis of the motor in a centrosymmetric manner.