Cross-country vehicle

FIELD: transport.

SUBSTANCE: invention relates to automotive industry and may be used in agricultural machinery and trackless machines. Proposed vehicle comprises body 2 to house two-stage planetary final drive 2 coupled via gearshift mechanism 3 with engine 4. Said planetary final drive 2 comprises two planetary trains 5. Planetary train 5 consists of carrier 6 with pinions 7 engaged with side brake 8, sun gear 9 and ring gear 11. Clutches of sun and ring gears locking and sun gear brakes are composed of inertial synchromesh units, each being engaged with sun gear of appropriate planetary train to be locked with ring gear or final drive housing.

EFFECT: higher reliability, reduced power loss in turns.

2 dwg

 

The invention relates to a tractor and transport machinery, and may find application in agricultural production and trackless vehicles.

Known vehicle containing the drive from the motor and mechanism for change-speed planetary gear mechanism rotate with the on-Board brakes, wheel suspension system (see kN. "Argo Avenger & Avenger EFI", Parts Manual Ontario Drive &Gear Limited, Printed in Canada, c.1-12).

The disadvantage of the vehicle are large mechanical loss when turning.

Also known vehicle containing the drive from the engine and the mechanism of change of the two-stage planetary gear mechanism rotate with the friction lock solar and epicycle gears, brakes, sun gears and side brakes, crawler undercarriage system (see kN. "Caterpillar heavy carrier Prime mover GT-T and truck tractor GT-TS, instruction manual, edited Goryacheva V.T., Order of the red banner military publishing house of the Ministry of defense of the USSR, M., 1971, p.34-46 (prototype)).

The disadvantage of the vehicle are large power loss when turning and the complexity of the design.

The objective of the invention is to reduce power loss when turning. This is achieved by two-stage planetary rotation mechanism includes an inertial synchronizers, each of whom shall meet the movable splined connection with the sun gear of the planetary range and interoperability with conical friction surfaces and toothed crowns of the projections of the casing and epicycle gear.

1 shows a vehicle with crawler chassis with two-stage planetary rotation mechanism and the mechanism for change-speed driven from the engine, left side view; figure 2 - two-stage planetary rotation mechanism, the view from the top in the section.

The vehicle includes a housing 1 within which is located a two-stage planetary rotation mechanism 2 connected through the mechanism of the change-speed 3 engine 4.

Two-stage planetary rotation mechanism includes two planetary series 5, each of which consists of a carrier 6 are installed on the satellites 7 associated with the onboard tape brake 8, the sun gear 9 having a slotted movable connection with the inertial synchronizer 10, epicycle gear 11 containing ring gear 12, the outer face of which is made in the form of a conical friction surface and driven in rotation conic pair 13. Two-stage planetary rotation mechanism 2 is located in its own housing 14 with the inner side walls of the protrusions in the form of gear rims 15, the outer face of which is made conical friction surfaces for engagement with the inertial synchronizer 10. On the outside of the housing 1 a side of the transmission 16, associated with the drive wheels 17.

Rover works the et as follows.

Torque from the motor 4 through the mechanism of the change of the transmission 3 is transmitted to the bevel pair 13 and the associated epicycle gear 11, interlocked by means of inertial synchronizer 10 with sun gears 9, with 7 satellites, not being able to rotate, to transmit power from the epicycle gear 11 and the sun gear 9, vadilal 6, transmitting torque through airborne transmission 16 and the drive wheels 17, providing rectilinear motion of the Rover.

Moving inertial synchronizer 10 in the locked position the sun gear 9 with the housing 14 stops them, reducing the frequency of rotation of the carrier and increasing the torque on them, provides slow-motion rectilinear motion. Moving only one inertial synchronizer 10 in the locked position the sun gear 9 with the housing 14 to rotate the vehicle in the direction displaced inertial synchronizer 10 with a fixed radius.

The neutral position of the inertial synchronizer 10 is not providing torque transmission planetary series 5, making it impossible independent movement of the vehicle. The neutral position of one of the inertial synchronizer 10 causes uncontrolled turning of the vehicle with a radius-dependent resistance forces external to the food.

In the neutral position of one of the inertial synchronizer 10 and enabling the tape brake 8 of the same side is rotating in the same direction with a radius that depends on the friction band brake 8, but not less than the gauge of the vehicle.

This ATV has a simple construction, reliable in operation and provides less power loss when turning.

In order to reduce power losses during rotation, the friction lock solar and epicycle gears and brake the sun gear made in the form of inertia of synchronizers, each of which is associated with the sun gears of the respective planetary series and has the possibility of blocking with epicycle gear or body.

The vehicle containing the drive from the engine and the mechanism of change of the two-stage planetary gear mechanism rotate with the friction lock solar and epicycle gears and brakes sun gears and brake, tracked or wheeled chassis system, characterized in that the friction lock solar and epicycle gears and brake the sun gear made in the form of inertia of synchronizers, each of which is associated with the sun gears of the respective planetary series and has the possibility of blocking with epicycle gear Il is with the case of the rotation mechanism.



 

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