Coaxial twin-rotor engine biplanetary drive

FIELD: transport.

SUBSTANCE: invention relates to machine building and may7 be used in vehicles driven and air screw. Biplanetary drive with ring gear made up of paired epicycle 3 is fitted in bearing 2 inside housing 1. Receiving section of epicycle 3 comprises epitrochoid working shape 4 outlined by vertices of triangular rotor 5. Crank 6 arranged off-center relative to sun ledge 7 with its axis aligned with ring gear center is arranged in rotor and aligned therewith. Radii of said sun ledge and crank relate as 2:3. Eccentricity equals half the radius of said ledge 7. Second part of ring gear represents inner gearing rim and comprises set of plane pinions coupled by central gear with sun ledge 7 and combined by drive carrier. Axial extensions of sun ledge 7 and ring gear comprise internal and external air screws, respectively.

EFFECT: expanded operating performances, lower power loss and simplified design.

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The invention relates to mechanical engineering and can be widely used in vehicles, the propulsion of which is the propeller /propeller/.

Known coaxial propeller, represented by two counter-rotating screw /internal and external/, the purpose of which is to reduce the power loss on the forward cast, a jet of air external screw /Cm., for example, “technical dictionary”, Moscow, 1977, Publishing house “Soviet encyclopedia”, p.73, 86/.

Drive coaxial propeller, in most cases, is a combined mechanism of two independent actuators, which inevitably leads to an increase in its mass and complexity. This makes the use of coaxial propeller limited and completely eliminates its relation to light helicopters and sport aircraft, snowmobiles, etc. a slight air transport. There is another feature of coaxial propeller: the greater the mass of air that passes in unit time through both screws, the more traction force. But this does not mean that the internal screw must rotate with the frequency of the external. A significant portion of the air after passing through the outer screw is made peripheral to the target between the screws and the air “shipping” internal screw does not require often the s external rotation. This is the guarantee rational use of engine power.

Unfortunately, the current drive scheme coaxial twin-screw propulsion is not perfect, since it generates the same frequency of rotations of the screws that is not rational in relation to helicopter /Cm., for example, the Internet. Transmission of the helicopter with coaxial arrangement of bearing screws/. Also known mechanical transmission patent number 2364775, allowing to provide opposite rotation of the two drive elements with different frequencies of spins aligned.

The task of the invention includes the development of a lightweight and more rational scheme actuator coaxial propeller, which will significantly expand the scope of its application and simplify the existing schema.

The solution of this problem is achieved in that the actuator coaxial twin-screw propulsion, including a Central gear, satellites and "the crown", which is a dual epicycle / reception part which contains the work path in the form of epitrochoid outlined vertices trichopoulou of the rotor located therein a crank made eccentric with respect to United solar spike, the axis of which coincides with the center of the crown, and the radii of the sun thorn and crank are related as 2:3, the eccentricity is half the radius of the solar cleat and the second part of "crowns which is a ring gear of the internal gear, containing a group of satellites, connected via a Central gear with a sun thorn is bilinearly, satellites which United the lead planet carrier and the one of the axial development of the solar thorns and crown of" contain, respectively, the external and internal screw propulsion.

The novelty of the invention is to achieve the required frequency of spins each screw individually with simultaneous simplification of the drive.

According to the patent and scientific and technical information of the claimed design is not detected, which allows to judge about the inventive step of the proposed solution.

Industrial applicability due to the significant expansion of the scope bilinearno drive coaxial twin-screw propulsion, reduction of power losses and simplification.

The drawing shows a schematic diagram bilinearno drive coaxial twin-screw propulsion.

In the housing 1 through bearings 2 installed bilinearly drive, “crown” which is a dual apical 3 /1 and 2/. The reception part of epicycle 3 contains the work path in the form of epitrochoid 4, defined by the vertices of three-cornered rotor 5 /2/. The rotor 5 is coaxially crank 6, is made eccentric with respect to United solar thorn 7, the axis of which coincides with the center of the CDF is us”. The radii of the sun thorn 7 and the crank 6 are related as 2:3. The eccentricity equal to half the radius of the sun thorn 7. The second part of the “crown” is a ring gear of the internal gear 8 /1/containing a group of satellites 9, connected via a Central gear 10 with sun thorn 7 and the joint lead planet carrier 11. Moving the connection of the rotor 5 with epicycles 3 and the crank 6 may be performed by means of balls or rollers, eliminating sliding friction in the drive. Axial development 12 and 13 solar spike 7 and “crown” 3 contain, respectively, the outer 14 and inner 15 propellers. Kinematic feature of the proposed drive is that one relative to the turnover of the rotor 5 and epicycle 3 corresponds to three turns of the crank 6/ solar cleat 7/. This is the result of the fact that each encounter /clash/ any angle rotor with the protrusion of the upper or lower branches of epitrochoid 4 occurring every 60 degrees relative rotation is accompanied by rotation of the crank 6 by 180 degrees.

Works bilinearly drive coaxial twin-screw propulsion in the following way. When the spins of the leading led 11 and epicycle 3 in these areas /figure 1, figure 2/ the rotor 5 is initially comes in opposite rotation. This comes from the fact that apical 3 its upper ledges the lower branches not entrain the rotor 5, and "utaplivaet" its vertices /edges/turn the rotary center of the rotor 5 around the center of the crown in the opposite rotation of epicycle direction. Thus the radius of the rotation center of the rotor 5 is the eccentricity ε and the Central gear 10 is made integral with a sun thorn 7, is a movable support for satellite 9. She /gear 10 directly inhibits unilateral rotation epicycle 3 and rotor 5. At the same time the axial development of 12 solar cleat 7 rotates the outer screw 14, and the axial development 13 epicycle 3 rotates counter internal screw 15. The proposed mechanism of the actuator is a closed system, the screws which rotate with different frequencies, but are dynamically balanced links. The reactive torque of the torsion of the case 1 is ruled out. Thus, significantly expands the scope of coaxial twin-screw propulsion, reduced power loss and simplifies the design of the drive.

For the implementation of the invention requires the following equipment and technology: foundry and forging. Machines: vertical and horizontal CNC milling, CNC turning, drilling, subarashii, grinding.

Bilinearly drive coaxial twin-screw propulsion, including a Central gear, satellites and "the crown", which is a dual epicycle / reception part that is contains about work path in the form of epitrochoid, defined peaks trichopoulou of the rotor located therein coaxially with the crank, is made eccentric with respect to United solar spike, the axis of which coincides with the center of the crown, and the radii of the sun thorn and crank are related as 2:3, the eccentricity is half the radius of the sun thorn, and the second part of the "crown" is a ring gear of the internal gear containing a group of satellites, connected via a Central gear with a sun thorn, characterized in that the satellites leading United planet carrier and the one of the axial development of the solar thorns and crown of" contain, respectively, the external and internal screw propulsion.