SU1393665A1 - Vehicle power takeoff shaft drive - Google Patents

Abstract

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 to increase reliability by disabling the first planetary mechanism on the direct drive. The drive mechanism for selecting a power take-off shaft of a vehicle includes a housing 1, an input shaft 2, two planetary mechanisms 3, 4. The corona gear 5 of the planetary mechanism 4 is connected to the housing 1, the carrier 6 and the sun gear 7 of mechanism 4 are made selectively connected to the output shanks 8, 9, and the carrier 10 of the planetary mechanism 3 is also connected to the housing 1. On the input shaft 2 there is installed a gear 12 equipped with a gear 11 control mechanism, made in the form of a sun gear of the planetary mechanism 3 and interacting in the first position with its satellites 13, in the second position - with the sun gear 14 of the planetary mechanism 4 and in the third position - with the sun gear 7 of the planetary mechanism 4. In addition, on the gear 14 of the planetary mechanism 4 a movable gear coupling 15 with a spring 16 is mounted, connected with the ring gear 17 of the planetary mechanism 3 and interacting through the locking mechanism 18 with the clutch 12 when it is connected with the satellites 13 of the planetary mechanism 3. 3 ill. 5 / -Г (Л 00 со 00 О) Od SP Rig.Z

Description

1, 1393665

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

The purpose of the invention is to increase reliability by disabling the first planetary gear on the direct drive.

FIG. 1 gives a kinematic mechanism with reversible drive output shanks; in fig. 2 is a diagram of the mechanism for direct drive of output shanks with reduced rotational speeds; and FIG. 3-m mechanism with direct drive output shanks with high rotational speeds.

The vehicle's power take-off drive mechanism contains IQ

body 1, input shaft 2, two planetary mechanisms 3 and 4. The corona gear 5 of the planetary mechanism 4 is connected with body 1, the carrier 6 and the sun on gear 7 of mechanism 4 are made 25 selectively connected with output shanks 8 and 9, The carrier 10 of the planetary mechanism 3 is also associated with the housing 1. On the drive shaft 2, a gear 12 is installed, equipped with a gear 11 30 control mechanism, made in the form of a sun gear of the planetary mechanism 3 and cooperating in the first position (FIG. 1) with its satellites 13, in the second position (Fig. 2) - with solar the gear 14 of the planetary mechanism 4, and in the third position (Fig. 3) with the sun gear 7 of the planetary mechanism 4. In addition, on the sun gear 14 of the planetary mechanism 4 a movable gear coupling 15 with a spring 16 is connected, connected to corona center 17 of the planetary mechanism 3 and interacting through the blocking mechanism 18 with the coupling 12 when it is connected with the satellites 13 of the planetary mechanism 3.

The mechanism works as follows.

In order to ensure the reversing drive by means of the control mechanism 11, the coupling 12 is set to the position shown in FIG. The rotation from the input shaft 2 through the planetary mechanism 3 with a change in the direction of rotation to the opposite and a decrease in the speed of rotation, as well as the coupling 15 is transmitted to the solar motor 40

45

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50

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five

nude 14, from which, through the planetary mechanism 4, one of the output shanks 8 and 9 installed in the mechanism receives a slow reverse rotational speed.

In order to provide a direct lowered drive through the control mechanism 11, the clutch 12 is connected to the sun gear 14 (FIG. 2) and to provide a direct increased drive the clutch 12 is connected to the sun gear 7 (FIG. 3), which provides the output shanks 8 and 9 two different speeds of direct rotation. At this, at both speeds, the clutch 12 moves away from the locking mechanism 18, as a result of which the clutch 15 disengages from the ring gear 17 by means of the spring 16, which eliminates the idle reverse rotation of the planetary mechanism.3 for direct drive of the rotary shanks 8 and 9,

Thus, the implementation of the link links of the planetary mechanisms in the form of a movable, spring-loaded in the direction of separation of the links of the gear coupling mounted on the link of one of the planetary mechanisms and interacting through the locking device with the main gear coupling when the reverse drive is activated, the first planetary mechanism automatically turns off from the drive with direct drive output shanks.

Claims (1)

Invention Formula The drive mechanism of the vehicle's power take-off shaft, which contains two lantern mechanisms, one of the links of which are connected to the housing, the others to each other, and still others are selectively connected with a gear coupling connected to the input shaft and equipped with a control mechanism at least one output shank associated with one of the links of the second planetary mechanism, characterized in that, in order to increase reliability by disabling the first planetary mechanism on the direct drive, the link of the plan links eteric mechanisms are made in the form of a movable, spring-loaded in the direction of separation 2 k / g W K / chll .. Ui T | II fui.i F No-- Yy X gz one - 17 ± 15 Z P T x / four/ .2