SU38433A1 - Cog gear to tracked carts - Google Patents

Description

The invention has as its goal to provide tracked vehicles with greater maneuverability. Such a task is solved by having a large variety of forward and reverse speeds with the possibility of simultaneously rotating the tracks in different directions at the same and different speeds. The use in this case of permanently coupled gears would require an extremely large number of the latter. In order to eliminate this drawback, the proposed transfer includes a combination of a conventional speed gearbox and two planetary systems, one system for each track.

In FIG. 1 shows the type of transmission from the rear end of the tractor; FIG. 2 - view of the same gear on the side of the tractor; FIG. 3-7 depict the change in the speed of the track as a function of the peripheral speed of the leading elements of the planetary transmission system.

The propeller shaft is permanently coupled with bevel gears 1, 2, of which gear 1 is freely mounted on shaft 7, carrying gear 3 at its ends, indicating the rotation of the gear wheels 5 of planetary systems, and

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gear 2 is rigidly mounted on a bushing, which freely grows on the shaft 7 and is the driving shaft of the four-speed gearbox, into which the driven shaft 8 via the clutches 9 transfers the rotation to the shafts 10 carrying the sun gears 4 mounted on the shaft 7, with the help of which gear 1 or 2 can be coupled with the shaft 7. The crosses carrying the planetary gears 6 are rigidly connected with the leading stars of the track belts. The shafts 10 and gears 5 are equipped with brakes.

When the pinion 2 is coupled with the shaft 7, the gears 4, 5 rotate in different directions, the wheel 5 rotating at a constant speed, and wheel 4 can have four different speeds, so as can be seen from FIG. 3, the leading stars of the tracks may have four forward speeds. If you turn off the clutches 9 and brake the shafts 10, both stars, as can be seen from FIG. 4, will rotate at the same speed backward. By turning off one clutch 9 and slowing down the corresponding shaft 10, it is possible to obtain the rotation of one star at a constant speed backward and four speeds of rotation of the other star in front. With the appropriate selection

The size of gears can be obtained not one, but several speeds of reverse, as can be seen from FIG. 5, by reducing the number of forward speeds. If you disengage the shaft 7 and gear 2 and brake the gear wheel 5, you can get, as can be seen from the left half of FIG. 5, the new four speeds forward. When the clutch 11 is in neutral position and the wheels 5 are unbraked or when the clutches 9 are switched off and the shafts 10 are not braked, the rotation speed of both sprockets is zero.

When engaged with shaft 7, gear 1, gears 4, 5 rotate to one side; it can be obtained, as can be seen from FIG. 6 and 7, another four forward speeds.

In addition, another twelve forward speeds and four reverse speeds can be obtained if an additional shaft directed parallel to the shaft 8 is used, which receives rotation from the shaft 8 in one direction through a pair of gears and in the opposite direction through a pair of gears with spurious intermediate gear . An additional shaft simultaneously informs the rotation of the gear wheels 5 of both planetary systems, and during operation of this shaft the rotation of the wheels 5 with the help of gears 3 must be turned off.

The subject matter of the invention.

Claims (4)

1. A toothed gear to tracked Len-gam carts, characterized in that, in order to change the speed of the wagon during forward and reverse travel and to change the magnitude and direction of the speed of rotation of one track against another, two planetary gear systems are lured for each track, in which the sun wheels 4 (Fig. 1, 2) receive rotation, variable in magnitude from the output shaft 8 of the gearbox, and wheel 5 receive rotation, variable in the direction from the drive shaft of the same gearbox, or get rotation variable, in the direction and magnitude of the second driven shaft of the same gearbox. 2. The form of gearing according to claim I, characterized in that, in order to obtain a variable in the direction of rotation of the wheels 5, the gearbox drive shaft is composed of two shafts, of which one is fitted with a bevel gear 1 that is freely seated on it adjustable coupling 11 and coupled by gear 3 with the wheel housings 5, and the second shaft with bevel gear stuck on it 2 is freely mounted on the first and coupled by gear box gears to the driven shaft of the latter, with gears 1 and 2 permanently coupled to the shaft of the motor ate. 3. The form of gearing according to claim 1, characterized in that the gear 3, in order to communicate the wheels 5 of rotation, varying in direction and size, are mounted on the second driven shaft of the gearbox, and this shaft has forward and reverse rotation. 4. Application in gear transmission on PP. 1 to 3 clutches 9 for disengaging the tracks and brakes in order to brake the sun wheels 4 and the wheels 5. f 4 5 BUT ... Fig.Z FIG. four  iSwKCmt Saseti jXiamuf azaZ /, FIG. B Fig Tz16 tt4 III N I1 IV / HI P If