SU1318441A1 - Vehicle power take-off shafts driving mechanism - Google Patents

Abstract

The invention relates to the field of transport engineering, in particular to the mechanisms for driving power take-off shafts used, for example, on tractors and similar vehicles. The purpose of the invention is to extend the functionality by providing a two-speed independent and synchronous drive or a simultaneous independent and synchronous drive while improving operational safety. The vehicle in which the power take-off drive mechanism is applied contains engine 1, main clutch 2, gearbox 3, final drive 4, final gear 5 and propulsion 6. Other vehicle transmissions can also be performed. The drive shaft 7, for example, through gears 8 and 9 is connected with the engine 1, (independent drive), and the drive shaft 10, for example, through gear 11 is connected with the propulsion 6 (synchronous drive). Between the output shaft 12 and the drive shaft 7, for example, a friction clutch 13 with a control mechanism 14 is installed. And between the output shaft 15 and the drive shaft 10, for example, a gear clutch 16 with a control unit is installed: a imomizable 17. Output the shafts 12 and 15 are equipped with gears 18 and 19, between which an intermediate gear 20 is mounted, movable relative to the shaft 21 and equipped with a control mechanism 22. In addition, the intermediate gear 20 is provided with a locking device that can be made in the form of by Zunas 24 and 25 of the control mechanisms 14 and 17 of the rod 26 and 27, one ends of which interact with the wells 28 and 29, and a plate 30 of variable shape is mounted between the other ends, a tight form 31 connected with the control mechanism 22 of the intermediate gear 20. and another implementation of the locking device, for example in the form of an electrical circuit, etc. 2 n.i. (L with co oo 4 N /, / t v III I1 1. / I - J, 2S25,; E 15 GUT // ..20 - D7 - a rr / MPI-2G / - ,, XTT- w, 7 , 2 77. T Д7 - a / МPY-2Г XTT- w figl 77. // 7 ZS24

Description

one

The invention relates to a transport engineering, in particular, to a power take-off drive mechanism used, for example, on tractors and similar vehicles.

A: The purpose of the invention is to improve operational safety when performing another output shaft connected through a controlled clutch with a propeller by excluding the simultaneous activation of controlled clutches during two-way synchronous and independent power take-offs.

FIG. 1 shows the scheme of the mechanism with a two-speed independent or synchronous drive; in fig. 2 - a fragment of the scheme of the mechanism with simultaneous independent and synchronous drive.

The vehicle in which the proposed power take-off drive mechanism is applied includes an engine 1, a clutch main clutch 2, a gearbox 3, a main gear 4, a final gear 5 and a propeller 6. Other vehicle transmissions are also possible. For example, the drive shaft 7 is connected with the brush 1 and the motor 1 (independent drive) through the brush 8 and 9, and the drive shaft 10 through the brush 11 with the drive 6 (synchronous drive). Between the output 12 and the drive 7 shafts, a friction clutch 13 with a control mechanism 14 is installed, and between the output shaft 15 and a drive shaft 10 - for example, a gear clutch 16 with a control mechanism 17. The output shafts 12 and 15 are equipped with gears 18 and 19, between which an intermediate brush 20 is mounted, movable relative to the shaft 21 and provided with a control mechanism 22.

In addition, the intermediate shchestren 20 is equipped with a blocking device, which can be made as mounted in the housing 23 between the sliders 24 and 25 of the control mechanisms 14 and 17 of the rods 26 and 27, one ends of which interact with the holes 28 and 29, and between the other the ends are mounted a variable-form plate 30, a tight 31 connected to the mechanism 22 for controlling the intermediate pinion 20. Another implementation of the locking device is also possible, for example, in the form of an electric circuit, etc.

The proposed drive mechanism for the drive shafts of a vehicle operates as follows.

To obtain a speed-independent or synchronous drive, the intermediate gear 20 is brought into engagement by means of its control mechanism 22 with 1-8 and 19 output shafts 12 and 15 (Fig. 1), which provides between

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output shafts 12 and 15 required gear ratio to obtain two speeds. At the same time, the plate 30, with its broadened part, is located between the ends of the rods 26 and 27. As a result, when one of the control mechanisms is turned on, for example, 14 of the friction clutch 13, its rod 26 comes out of the well 28 and sinks the rod 27 into the well 30 29 of the control mechanism 10, blocking the possibility of engaging the gear coupling 16, and vice versa, i.e. the possibility of connecting the output shafts 12 and 15 connected to each other with two drive shafts 7

and 10, which would cause damage. 1 J

To obtain a joint independent and synchronous drive, the intermediate brush 20 is driven by its control mechanism 22 from engagement with the gears 18 and 19 of the output shafts 12 and 15 (Fig. 2). At the same time, the plate 30 is positioned between the ends of the rods 26 and 27 with its narrow portion . This allows both control mechanisms 14 and 17 to be included together, in

25 resulting in that the output shaft 12, via the friction clutch 13, receives from the shaft 7 an independent drive and the output shaft 15, via the gear coupling 16, receives from the shaft 10 a synchronous drive.

thirty

Claims (1)

Invention Formula five The drive mechanism of the vehicle's power take-off shaft, mainly a tractor, containing two output shafts, an intermediate gear, hooked to the gears of the output shafts, one of the shafts being connected via a controlled clutch to the vehicle drive motor, that in order to increase 0 operating safety when performing another output shaft connected through a controlled clutch with a digeter by excluding the simultaneous activation of controlled clutches under two-speed synchronous and independent power take-off modes, it is equipped with a locking device made in the form of two coaxially arranged rods installed with the possibility of axial movement opposite the grooves made in organs Q control of the clutches when they are off, and a plate with conical surfaces placed between the rods for interacting with the rods, while the intermediate gear is designed with axial mobility for outputting 5 is engaged and has a control associated with said plate. Jg-, rp-L Ea- I - ZHG7 I | f-2fi h 22 7 20 27 18 12 Fi & .2