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Unmanned helicopter power system convenient to maintain and provided with double turboshaft engines

An unmanned helicopter and power system technology, applied in the field of the power system of the twin-engine turboshaft unmanned helicopter, can solve the problems of inconvenient maintenance, disassembly and replacement of the power system of the unmanned aerial vehicle, and achieve convenient daily maintenance, simple structure, and easy work. Small vibration effect

Pending Publication Date: 2017-06-13
必扬星环(北京)航空科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of unmanned helicopter usually fastens the engine completely to the main structure of the fuselage, together with the narrow internal space of the fuselage and the complex structure of the diesel aero-engine, it brings great difficulties to the daily maintenance and disassembly and replacement of the power system of the drone. big inconvenience

Method used

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  • Unmanned helicopter power system convenient to maintain and provided with double turboshaft engines
  • Unmanned helicopter power system convenient to maintain and provided with double turboshaft engines
  • Unmanned helicopter power system convenient to maintain and provided with double turboshaft engines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 and figure 2 As shown, a maintenance-friendly twin-engine turboshaft unmanned helicopter power system includes a final reducer 1 and two turboshaft engines 5 .

[0032] The final reducer 1 includes two input shafts 11 and one output shaft 12 , the two input shafts 11 are in drive connection with the output shaft 12 , and the two input shafts 11 rotate simultaneously to drive the output shaft 12 to rotate. The transmission connection between the two input shafts 11 and the output shaft 12 can be realized through a gear transmission structure, a belt transmission structure, or a mixed transmission structure of gears and belts. All transmission structures can be selected in the prior art, as long as the two input shafts can be realized 11 simultaneously rotates to drive the function of output shaft 12 to rotate and can be applied in the present invention.

[0033] The two input shafts 11 of the final reducer 1 are respectively connected to the power out...

Embodiment 2

[0058] In this embodiment, the output end of the output connector and the input shaft of the final reducer are connected by a flange. Its specific structure is: the end of the input shaft of the main reducer is coaxially processed with a first flange, and the output end of the output connector is processed with a second flange matching the first flange, and the first flange and the second flange are processed together. The second flange is processed with a number of installation holes corresponding to the position and quantity. When installing, align the mounting holes on the first flange and the second flange, and tighten the nuts through the bolts passing through the mounting holes on the first flange and the second flange at the same time, so that the main reducer The input shaft is connected and fixed with the output end of the output connector and transmits torque.

[0059] Other than that, the rest of the structure of this embodiment is the same as that of Embodiment 1....

Embodiment 3

[0061] As a preference: the output end of the output connector and the input shaft of the final reducer are connected by a pin shaft. Its specific structure is as follows: machining a radially penetrating first mounting hole on the end of the input shaft of the main reducer, and machining a round hole that matches the outer wall of the end of the input shaft of the main reducer at the output end of the output connector. Open the second installation hole radially through the circumferential side wall of the output end of the output connector at the output end of the output connector where the round hole is located, and make the second installation hole the same diameter as the first installation hole. When installing, insert the end of the input shaft of the main reducer into the round hole at the output end of the output connector, align the positions of the first and second mounting holes, and then insert the After the pin shaft is inserted into the first and second installat...

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Abstract

The invention relates to an unmanned helicopter power system convenient to maintain and provided with double turboshaft engines. The unmanned helicopter power system comprises a main speed reducer and two turboshaft engines, wherein the main speed reducer comprises two input shafts and one output shaft, and the two input shafts are in drive connection with the output shaft, simultaneously rotate to drive the output shaft to rotate and are connected with power output ends of the two turboshaft engines through two flexible couplers respectively. With the turboshaft engines taken as power sources, the unmanned helicopter power system is small in size, light in weight, simple in structure and small in work vibration; sectional embedded structures of the flexible couplers can realize reliable transmission of rotation and rapid modular replacement of the turboshaft engines simultaneously, and daily maintenance, dismounting and replacement are very convenient.

Description

technical field [0001] The invention relates to the field of unmanned helicopters, in particular to an easy-to-maintain twin-engine turboshaft unmanned helicopter power system. Background technique [0002] The existing unmanned helicopters can be divided into two main types of electric drive and fuel drive according to the energy source, and the fuel drive unmanned aerial vehicle includes two types of internal combustion engine and turbine engine. At present, large and medium-sized unmanned helicopters mainly use fuel as their energy source due to their high requirements on performance indicators such as take-off weight and endurance time. Among them, internal combustion engines, especially diesel engines, are the most common. The diesel engine used by unmanned helicopters is not only bulky and takes up a lot of space inside the cabin, but also has many parts and complex internal structures, making it difficult to overhaul and maintain. When the diesel engine is working, t...

Claims

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Application Information

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IPC IPC(8): B64C27/12F16D3/56
CPCF16D3/56B64C27/12B64U50/12B64U10/10
Inventor 田松
Owner 必扬星环(北京)航空科技有限公司