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Helicopter coaxial forward and reverse rotor parallel drive device

A driving device and a technology for helicopters, applied in the field of helicopters, can solve the problems of complex helicopter rotor motion driving device, long tail transmission chain, complex structure, etc., so as to improve the service life and safety and reliability, avoid the tail transmission mechanism, and simplify the structure. Effect

Active Publication Date: 2022-04-19
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing helicopter rotor motion drive device is very complicated, and part of the drive mechanism, power supply line, and oil supply pipe are located outside the cabin
It is necessary to add an empennage transmission mechanism, the empennage transmission chain is long and the structure is complex
[0004] The existing helicopter coaxial forward and reverse rotor drive devices have the following disadvantages: the structure is very complicated, and many pipelines and connecting rods rotate outside the cabin, which are easy to corrode and easy to damage

Method used

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  • Helicopter coaxial forward and reverse rotor parallel drive device
  • Helicopter coaxial forward and reverse rotor parallel drive device

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Embodiment Construction

[0020] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0021] The invention discloses a helicopter coaxial forward and reverse rotor parallel driving device, comprising a machine base 1, a moving table 2, three driving rods, a rotor mechanism, and a tilting wing mechanism; Holes and three radial linear guide rails uniformly distributed on the circumference; the moving table 2 is a rotary body, and its upper end, upper part, middle part, lower part and lower end are respectively provided with a spherical body coaxial with the machine base 1, a cylindrical sleeve, and a large cylindrical cavity , disc, small cylindrical cavity, three radial through holes uniformly distributed on the circular sleeve of the large cylindrical cavity, three hinge supports evenly distributed on the circular disc, the spherical body and the large cylindrical cavity There is a first coaxial through hole, and the large cylind...

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Abstract

The invention relates to a helicopter coaxial forward and reverse rotor parallel driving device, which belongs to the technical field of the helicopter technology field, and comprises a base, a moving table, three driving rods, a rotor mechanism and a tilting wing mechanism. The rotor mechanism includes forward and reverse rotor groups, inner and outer sleeves, forward and reverse bevel gears, and bevel gear drive groups; the inner and outer sleeves are connected with the moving table for coaxial rotation; the upper ends of the inner and outer sleeves are respectively connected with the forward and reverse rotor groups for vertical rotation. , and the lower ends are coaxially fixedly connected with the forward and reverse bevel gears respectively. The bevel gear driving group meshes with the forward and reverse bevel gears at the same time, driving the forward and reverse rotor groups to reverse each other; the drive rod drives the rotor mechanism to swing, and the auxiliary motor drives the forward and reverse rotor groups to tilt through the screw nut and the mandrel to change the speed of the helicopter. with directions. The invention has the effects of improving the swinging flexibility of the main rotor, slowing down the action force and impact force of the rotor lifting force on each driving branch, improving the service life and safety and reliability, avoiding the use of tail gear, simplifying the structure and improving the service life.

Description

technical field [0001] The invention relates to a helicopter coaxial forward and reverse rotor parallel driving device, which belongs to the technical field of helicopters. Background technique [0002] Helicopter rotor motion drive device is the key component of helicopter motion. Usually the rotor consists of a hub and several blades. The hub is mounted on the main shaft of the single rotor, and the blades, which are shaped like slender wings, are attached to the hub. In order to prevent the helicopter from rotating in the air, it is necessary to add an empennage, which usually has a long transmission chain and a complex structure. For this reason, there has been a helicopter coaxial forward and reverse rotor drive. However, the structure of the existing coaxial forward and reverse rotor drive device is very complicated, and many pipelines and connecting rods rotate outside the cabin, which are easy to corrode and easy to damage, which greatly increases the accident rat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64C27/10B64C27/14B64D35/04B64D35/06
CPCB64C27/10B64C27/14B64D35/04B64D35/06
Inventor 路懿路扬叶妮佳常泽锋
Owner YANSHAN UNIV
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