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Aloft secondary starting device for engine of unmanned aerial vehicle

A secondary start-up and engine technology, which is applied to aircraft power units, aircraft parts, transportation and packaging, and can solve problems such as idling flameout and unstable work

Inactive Publication Date: 2015-09-23
周勤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While reducing the cost, there are some unstable factors in the engine of the main component of the drone. Due to the use of the engine with two-stroke carburetor technology, the engine will appear unstable and stall when it works for a long time.

Method used

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  • Aloft secondary starting device for engine of unmanned aerial vehicle
  • Aloft secondary starting device for engine of unmanned aerial vehicle

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Experimental program
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Embodiment Construction

[0013] refer to figure 1 and figure 2 , the present invention is a secondary starting device for a UAV engine in the air, comprising a first gear 1, a second gear 2, a third gear 3, a fourth gear 4, a motor 6, a one-way bearing 15, and an engine main shaft 5. The first gear 1 is installed on the engine main shaft 5 through the one-way bearing 15, the first gear 1 meshes with the second gear 2, the second gear 2 and the third gear 3 are all installed on the rotating shaft 23, and the motor 6 The fourth gear 4 is installed, the fourth gear 4 meshes with the third gear 3, and the motor 6 is connected with the automatic control device 61; the motor 6 is a miniature high torque brushless DC motor; the first gear 1 and the second gear The gear ratio of the gear 2 is 9.7:1, the gear ratio of the third gear 3 and the fourth gear 4 is 9.7:1; the one-way bearing 15 is locked in the rotation direction of the first gear 1 .

[0014] Working process of the present invention:

[0015] D...

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Abstract

The invention discloses an aloft secondary starting device for an engine for an unmanned aerial vehicle. The aloft secondary starting device for an engine for the unmanned aerial vehicle comprises a first gear, a second gear, a third gear, a fourth gear, a motor, a one-way bearing and an engine spindle. The first gear is mounted on the engine spindle through the one-way bearing. The first gear is engaged with the second gear. Both the second gear and the third gear are mounted on a rotary shaft. The fourth gear is mounted on the motor and is engaged with the third gear. The motor is connected with a protecting device. According to the aloft secondary starting device for an engine for the unmanned aerial vehicle, the micro large-torque direct-current brushless motor is taken as a power source, and two stages of speed reduction gears with the ratio being 9.7:1 are used for driving the engine spindle. In addition, the largest stage of gear is mounted on the engine spindle through the one-way bearing, the rotating speed of the largest stage of gear is higher than the rotating speed generated by the motor after the engine is started, the largest stage of gear is separated from a bull gear under the action of the one-way bearing, and the motor stops working accordingly.

Description

【Technical field】 [0001] The invention relates to the technical field of tiny unmanned aerial vehicles, especially the technical field of secondary starting devices. 【Background technique】 [0002] Unmanned aerial vehicles and tiny unmanned aerial vehicles currently used in agricultural production are simple in structure and relatively low in cost due to the promotion and popularization. While reducing the cost, the main component engine of the UAV has these unstable factors. Due to the use of the engine with two-stroke carburetor technology, the engine will appear unstable and stall when it is idle for a long time. If you encounter a flameout situation during flight, you need to start the engine a second time in the air. Due to the high compression ratio of the engine, it is necessary to provide a driving device with considerable torque. 【Content of invention】 [0003] The purpose of the present invention is to solve the problems in the prior art, and to propose a secon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64D31/06B64D31/14
Inventor 周勤
Owner 周勤