KR20120062034A

KR20120062034A - Contra-rotating system

Info

Publication number: KR20120062034A
Application number: KR1020100077521A
Authority: KR
Inventors: 박태균
Original assignee: 박태균
Priority date: 2010-08-11
Filing date: 2010-08-11
Publication date: 2012-06-14

Abstract

The present invention provides a low-energy efficiency by transmitting power to a system capable of rotating two axes having concentric shafts in one driving source in the opposite direction and a front or rear blade or propeller, which is a rotating body. It is a system that maximizes and reduces noise.

Description

The present invention relates to a concentric inversion drive system and a rotating device including the same, wherein two axes having concentric axes connected to one drive source are rotatable in opposite directions. {Contra-Rotating System}

When the main shaft is rotated by one drive source, the main shaft and the intermediate gear rotate in opposite directions, and the driven shaft (by the chamfered gear) which forms the concentric axis moves in the same direction as the intermediate gear, i.e., rotates in the opposite direction to the main shaft. It enables the reversal drive to transfer its power to blades, propellers, or other devices.

Conventional concentric reversal drive system has the first complicated design for the concentric reversal driving as shown in foreign literature and secondly the rotation energy transfer process is more multi-stage to reduce energy efficiency and vibration during operation. There was a big problem with excessive friction noise. The present invention requires only a two-stage delivery system for rotational energy transfer, resulting in a simple machine configuration, high energy transfer efficiency, and low vibration and noise. Recent research has focused on counter-rotating systems with two non-concentric shafts and two other driving sources, whereas the contra-rotating field uses bevel hunger, which is complex in configuration and uses high vibration and noise. Due to complexity, the current research has been discontinued.

The vortex that occurs in the front blades or propellers reduces the speed of the moving object and the vortex turns the moving object (Yaw phenomenon). It is well known that the Contra-rotating propellers system provides the greatest horsepower and eliminates Yaw. Contra-Rotating systems have already been widely applied to ship propulsion and propellers, and have proven to have a 6-16% increase in efficiency. It became.

As mentioned above, the usefulness of the Contra-Rotating System has been proved, but mechanical complexity and excessive noise have emerged as a problem. In other words, the energy transfer from convex gears (main gears) to convex gears (intermediate gears) and then to concave gears (driven gears) is simplified to a two-stage transmission system. Invented the device to reduce the noise by reducing. Second, the number of front and rear blades was changed to offset the interference and high frequency that may occur between two propulsion blades, propellers and other rotating devices.

The present invention is a simple and energy efficient combination of convex and concave hungers to contra-rotate the concentric dual axis, resulting in low energy and high efficiency. Hydrodynamics will be applied to all applications where low energy and high efficiency will be achieved. As we enter the commercialization phase, a green revolution will be achieved.

A is the main axis and B is the driven axis. A and B are concentric axes.
C is the main gear (convex gear) and A and C are integral.
The D, E and F gears (convex gears) are fitted to the shafts fixed to the G side, respectively.
(The gear shafts of D, E and F may be fixed separately or simultaneously to the front panel H.)
The G gear is integral with B as a concave gear.
The H side (panel) serves as a support for D and EF hunger (H side may be omitted)
1 is a perspective schematic view.
2 is a front view as seen from the front direction
Main gear (A) Intermediate gear (D, E, F) and driven gear (G)

When the A axis rotates forward, the C gear rotates forward. D, E, F gears engaged with the C gear rotate backwards. G gears engaged with the D, E, F gears are concave gears. , F Turn in gear and forward direction. Therefore, the driven axis B rotates in the opposite direction to the main axis A.

D, E and F gears are integrally fitted with a ring with bearings on the shaft, and the ring is fitted with a shaft integral with (one side of the driven shaft) or (H side) or (one side of the H surface and the driven shaft). .

D, E, F gears in the example shown in Fig. 2) in front of one side of the driven shaft (three intermediate gears) have a triangular shape, or (one) or (multiple) polygons (square, Pentagons, ...) or their inverted forms (inverted triangles, inverted squares, ...).

The A and G axes are installed at the output stage to transmit power to a plurality of blades or propellers and to adjust the number of front and rear blades attached to the main and driven shafts to minimize the noise generated during operation.

A: spindle
B: driven shaft
C: main gear
D, E, F: Middle Gear
D1, E1, F1: Shaft Bearing
G: driven gear
H: panel

Claims

In an inverted drive mechanism in which a main shaft, a driven shaft, and two axes are connected by spurs and internal gears to rotate in opposite directions, the intermediate gears connected to the main shaft and the driven shaft are fixed to one panel so as to be rotatable. Device.