SU1414669A1 - Two-speed drive mechanism of vehicle power takeoff shaft - Google Patents

Abstract

The invention relates to transport engineering, in particular to the drive mechanisms of the power take-off shafts of tractors and similar machines. The purpose of the invention is the expansion of technological capabilities by providing a reversal of the direction of rotation of the output shafts. The two-speed drive mechanism of the vehicle's power take-up shaft contains a planetary mechanism 2 located in the housing 1, the input link of which, for example, the sun gear 3, by the drive shaft 4 is kinematically connected with the drive element such as an engine (not shown in the diagrams), and the output link for example the carrier 5 is provided with a fastening place 6 for communication with the output shafts 7, 8. The intermediate link of the planetary mechanism 2 — the epicyclic gear 9 — is provided with a crown 10, with which the gear t1 of the separate shaft 12 is connected, on which also has a gear rim 13, an external gear gear 14 and an internal gear gear 15 are mounted on the drive shaft 4, and the cone is provided with a counter rim 16. In addition, it is advisable to provide a separate shaft 12 with a control mechanism 17 with a limiting stop 18, and a body 1 The openings 19, 20 are different profiles along the profiles and the splines of the output shafts 7, 8, which are their storage location, while the installation of one of the shafts 7, 8 in the openings 19 or 20 allows its end to interact with the limiting stop 18. 2 silt (La :: O5: o

Description

The invention relates to transport engineering, in particular to the mechanisms for driving the power take-off shafts of tractors and similar machines.

The purpose of the invention is the expansion of technological capabilities by ensuring the reversal of the direction-, lazy rotation of the output shafts,

FIG. 1 is a diagram of the mechanism with a reduced main speed mode of rotation of the output shaft; in fig. 2 is a diagram of the mechanism with an increased main speed mode of rotation of the output shaft.

The two-speed drive mechanism of the vehicle's power take-up shaft contains a planetary mechanism 2 located in the housing 1, the input link of which, for example, sun gear 3, is driven by a drive shaft 4 to a drive element, for example, an engine (not shown), and an output link, for example 5, is provided with a mounting position 6 for communication with the output shafts 7 and 8. The intermediate link miaHeTkpHoro of the mechanism 2 — an epicyclic gear 9 — is provided with a crown 10 with which the gear 11 of a separate shaft 12 is connected, on which also n the ring gear 13. On the drive shaft 4 mounted gear

14 gearing and gear

15 internal engagement, and the housing is provided with a matching rim 16. In addition, it is advisable to provide a separate shaft 12 with a control mechanism 17 with a limiting stop 18, and a housing 1 with two openings 19 and 20 of different profiles In the slotted profile of the output shafts 7 and 8, which are their storage location, with the installation of one of the shafts 7 and 8 in the hole

19 or -20 makes it possible for it to interact with the end stop 18.

The mechanism works as follows.

To provide a lower main speed mode (Fig. 1), the output shaft 7 is coupled to the planet carrier 5, and the output shaft 8 is installed in the opening 20. In this case, the control mechanism 17 can be installed only in two: positions. In the position shown in FIG. .1 continuous lines, crown gear 9 gear 11 separately

s

0

five

0

five

the second shaft 12 is connected to the counter-rim 16 of the housing 1, as a result of which the shank 7, when the driving shaft 4 rotates, gets a lower basic rotation speed. And in the position shown in FIG. 1 by dashed lines, the crown gear 9 through gear 11 and the crown 13 of the separate shaft 12 is connected to the internal gear 16, resulting in the output shaft 7, when the drive shaft 4 rotates, to obtain a reverse rotational speed with reduced revolutions.

In order to provide an enhanced main speed mode (Fig. 2), the output shaft 8 is connected with the planet carrier 5, and the output shaft 7 is installed in the hole 19. In this case, the control mechanism 17 can be installed in only two positions. In the position shown on. 2 solid lines, the crown gear 9 through the gear 11 and the crown 13 of the separate shaft 12 are connected with the external gear 14, as a result of which the shaft 8, when the drive shaft 4 rotates, obtains the main rotation speed. In the position shown in FIG. 2, by dashed lines, the epicyclic gear 9 through gear 11 and the crown 13 of the separate shaft 12 is connected to the internal gear 15, thereby causing the output shaft 8 to receive a reverse rotation speed with reduced speed i turns.

Claims (1)

Formula images et e and The mechanism of a two-speed drive of the vehicle's power take-off shaft, comprising a three-link planetary mechanism installed in the housing, with an input link, kinematically connected with a drive element, output and intermediate links, two output shafts, a gear mounted on a separate shaft and a gear ring on the housing, characterized by that, in order to expand technological capabilities by providing a reversal of the direction of rotation of the output shafts, it is equipped with an additional internal pinion gear 4669. laziness on the input link, and a separate gear ring with an additional shaft is made with the possibility of str - internal gear. T L //// " H th 19 . - " at ten