SU95704A1 - Planetary two-speed gearbox - Google Patents

Description

The invention relates to a planetary speed box, in which, when changing the direction of the drive shaft, an automatic switching of the speed of rotation of the driven shaft occurs without changing the direction of its rotation.

In the existing planetary boxes, the possibility of automatically switching the speed of rotation of the driven shaft n:) and changing the direction of the drive shaft Vranece is excluded.

For the sake of speed in the proposed box, the satellites are mounted on a adjustable, along the axis of the drive shaft, a ring that automatically engages in changing the direction of rotation of the drive shaft with the foam box housing or with a toothed frame rigidly connected to the driven shaft.

FIG. I shows a general view of the box in section; in fig. 2-diagram of the inclusion of the adjustable ring.

The gearbox consists of a planetary gear with a solar bristle / rigidly mounted on the drive shaft 2, and a double ratchet coupling, the adjustable ring-3 of which is equipped with ratchet gears 4 and 5. On the adjustable ring 3 the trunnions 6 are rigidly fixed, on which they are mounted satellites 7, equipped with ballrooms 8. Satellites 7 are coupled with a ring gear 9, connected by a flange 10 to a driven va.YUM //.

On the ring crown 9 there is a snoring crown 12 of the ratchet crown. But the other side of the adjustable ring 3 has the second horn of the crown 1 (see Fig. 2).

The working faces of the teeth of ratchet veshtsy 4 and 5 are turned in the opposite side. In the case of the winding of the drive shaft to the right, the adjustable ring 3 is coupled with the gear rims 9, in the result, the box works with the gear ratio x equal to one. When the drive shaft is rotated to the left, the crown 12 and the ring 3 are automatically disentangled and the latter is coupled with the non-moving crown 13. In this case, due to the cessation of the running-in motion of the satellites, the speed of rotation of the driven shaft without

change direction eio .i.

In order to avoid the possibility of c) st11 hinging the rearranged ring of the ratchet tine crown 13 can be spring-loaded.

PREPARATION AND RESULTS

1, Planetarium of a two-stage gearbox with a sun gear on the drive shaft connected with satellites |, the 1st crown is internally hooked on the driven shaft, so that, with the purpose of automatic shifting. Estimates of speed n) and change of direction of rotation of the drive shaft of the satellites mounted on the adjustable axle axis: the shaft leading shaft of his collar, fitted at the ends of the two sides with ratchet gears engaging alternately with the gear crown of the driven Ba / ja i.ti with gear ko: ro: nKofi, reinforced pepod In: IL “about on to;) rpusa ja)).

2. The form of execution of the box no. 1, about tl and ch and ya} the fact that the working faces of the teeth of the adjustable ring with one and the other side are turned in the opposite direction.

5 3 1 12.