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Main rotor blade fixing assembly for unmanned helicopter

A technology for unmanned helicopters and fixed components, which is applied in the field of helicopters, can solve the problems that the installation mechanism cannot be prevented from freezing, cannot be automatically injected with lubricating oil, etc., and achieves the effect of reducing loss and being convenient to use.

Inactive Publication Date: 2021-09-24
陈罗丹
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention provides a main rotor blade fixing assembly for an unmanned helicopter, which solves the technical problem that the existing helicopter blade installation mechanism cannot automatically inject lubricating oil and cannot prevent freezing at the installation mechanism

Method used

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  • Main rotor blade fixing assembly for unmanned helicopter
  • Main rotor blade fixing assembly for unmanned helicopter
  • Main rotor blade fixing assembly for unmanned helicopter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Depend on Figure 1-9 Given, the present invention includes a blade body 1, a mounting frame 2, and a power shaft 3. There are multiple blade bodies 1, and multiple blade bodies 1 are snapped into the mounting frame 2, and the mounting frame 2 is installed with a An adjustment mechanism for adjusting the deflection direction of the blade body 1, the adjustment mechanism includes a ball sleeve 4 and a sphere 5;

[0037] An air pump 14 and a gas storage box 15 are installed on the mounting frame 2, and a lubricating mechanism for adding lubricating oil to the connecting part of the ball sleeve 4 and the sphere 5 is installed on the mounting frame 2;

[0038] An antifreeze mechanism for protecting the adjustment mechanism is installed on the mounting frame 2 .

Embodiment 2

[0040] On the basis of Embodiment 1, the ball sleeve 4 is installed on the blade body 1, and there are multiple ball sleeves 4, the ball sleeve 4 is set outside the ball 5, the ball 5 is connected to the fixed rod 6, and the fixed rod 6 is inserted into the mounting frame 2, the end of the fixed rod 6 is provided with a threaded part, the threaded part is installed with a nut 7, the outer side of the fixed rod 6 is provided with an elastic washer, the elastic washer is located between the mounting frame 2 and the nut 7, and the blade body 1 is connected to the rotating plate 8, The rotating plate 8 snaps into the arc-shaped groove 9, and the arc-shaped groove 9 is arranged on the mounting frame 2. The rotating plate 8 is connected to the adjusting rod 10, and the outer side of the adjusting rod 10 is provided with an adjusting plate 11. The adjusting plate 11 is rotated and connected to the adjusting frame 12. An electric telescopic link 13 is installed at the lower end of the ...

Embodiment 3

[0042]On the basis of Embodiment 1, there are multiple lubricating mechanisms, the lubricating mechanism includes an air outlet pipe 16, the air outlet pipe 16 is inserted into the gas storage box 15, the air outlet pipe 16 is equipped with an air outlet valve 17, and the air outlet pipe 16 is inserted into the oil filling tank 18, The oil injection tank 18 is installed on the installation frame 2, and the annular fan blade 19 is clamped in the oil injection tank 18. The air outlet pipe 16 is located directly above the annular fan blade 19. The annular fan blade 19 is connected to the partition plate 20, and the partition plate 20 snaps into the In the oil injection tank 18 and connected in rotation with the oil injection tank 18, the partition plate 20 is connected to the sealing plate 21, and the sealing plate 21 is provided with a through hole, and an oil injection pipe 22 is stuck in the through hole, and the oil injection pipe 22 is equipped with an oil injection valve 23. ...

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PUM

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Abstract

The invention discloses a main rotor blade fixing assembly for an unmanned helicopter, and relates to the technical field of helicopters. The main rotor blade fixing assembly comprises a plurality of paddle bodies, a mounting frame and a power shaft, the paddle bodies are clamped into the mounting frame, an adjusting mechanism used for adjusting the deflection direction of the paddle bodies is mounted on the mounting frame, and the adjusting mechanism comprises a ball sleeve and a ball body; an air pump and a gas storage box are mounted on the mounting frame, and a lubricating mechanism for adding lubricating oil to the connecting part of the ball sleeve and the ball body is mounted on the mounting frame; and an anti-freezing mechanism for protecting the adjusting mechanism is mounted on the mounting frame. When the main rotor blade fixing assembly is used, the angle of the blade body 1 can be adjusted, lubricating oil can be evenly injected into the connecting portion of the ball sleeve and the ball body in the adjusting mechanism through mutual cooperation of all components in the lubricating mechanism, heated gas can be blown to the adjusting mechanism, and the adjusting mechanism can be prevented from being frozen.

Description

technical field [0001] The invention relates to the technical field of helicopters, in particular to a main rotor blade fixing assembly for an unmanned helicopter. Background technique [0002] Helicopter is mainly composed of body, lift (including rotor and tail rotor), power, transmission and airborne flight equipment. The rotor is generally driven by a turboshaft engine or a piston engine through a mechanical transmission system composed of a transmission shaft and a reducer, or it can also be driven by the reaction force generated by the tip jet. [0003] According to the "a blade fixing structure and UAV" provided by the Chinese patent authorization announcement number CN 107585290 B, the rapid installation and disassembly of the blades of the UAV's propeller can be realized, the structure is simple, and the operation is convenient, but the helicopter When flying, it is usually necessary to install a blade adjustment mechanism to adjust the angle of the blades to adjus...

Claims

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Application Information

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IPC IPC(8): B64C27/46B64C27/615
CPCB64C27/46B64C27/615
Inventor 陈罗丹
Owner 陈罗丹