SU1643206A1 - Six-wheel hauling vehicle - Google Patents

Abstract

The invention relates to mechanical engineering and is intended for use in modular type traction machines with a wheel formula 6K6 and 4K4. The purpose of the invention is to reduce the size of a differential axle drive. The six-wheeled traction vehicle contains the main 1 and additional front 2 and rear 3 drive axles connected to each other by two asymmetrical axle differentials 4 and 5, which are planetary furs

Description

The invention relates to mechanical engineering and is intended for use in modular-type traction machines with a wheel formula of 6x6 and 4x4.

The purpose of the invention is to reduce the size of a differential axle drive.

The drawing shows a schematic diagram of a six-wheeled tractor.

The six-wheeled traction vehicle contains the main 1 and additional front 2 and rear 3 drive axles connected to each other by two asymmetrical axle differentials 4 and 5, which are planetary mechanisms of the second type. The sun gear of the first differential 4 is connected to the front additional driving axle 2o. Coronna gear of the first differential 4 is connected to the main driving axle 1, and through the friction clutch 6 to the sun gear of the second differential 5 and the rear additional driving axle 3. The carrier of the first differential 4 is connected to the crown gear of the second differential 5, which was driven by means of a friction clutch 7 and gear 8, is connected with the gearbox.

The hydraulic control system of the friction clutches 6 and 7 includes an oil tank 9, a pressure source 10, a three-position four-line valve 11 with a control handle 5

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five

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five

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five

12, fixed in three positions, and hydrolines, connecting this distributor with other elements of the hydraulic system: first - with a source 10 of pressure, second - with a drain, third and fourth - with working cavities of friction clutches 7 and 6, respectively. Moreover, in the first position of the three-position distributor, the first, third, and fourth lines are connected to the second. In the second position, the first line is connected to the third, and the fourth - to the second. In the third position, the first line is associated with the third and fourth.

Six-wheeled traction means works as follows.

In the case of working on solid soils or roads with hard surface with small hook loads or without them, the handle 12 is in position I. Oil from the working cavities of the friction clutches 6 and 7, and the pressure source 10 goes to the oil tank 9 through the distributor 11 The friction clutches 6 and 7 are off. In this case, a fully differential drive is provided between the main 1 and additional front 2 and rear 3 drive axles.

With an increase in hook load, a decrease in adhesion properties and the bearing capacity of the soil, in order to increase the traction properties and maneuverability, it is enough to have a locked drive of one of the driving axles. In this case, the handle 12 is moved to position II.- The oil from the pressure source 10 goes into the working cavity of the friction clutch 7, and from the working cavity of the friction clutch 6 goes to the drain into the oil tank 9. The friction clutch 7 is on. This provides a differential drive of the main 1 and additional front 2 drive axles and the blocked drive of the additional rear drive axle 3,

With significant hook loads, performing energy-intensive technological operations on soils with low bearing capacity, in order to ensure sufficient traction properties and maneuverability, it is necessary to have a blocked drive of driving axles. In this case, the handle 12 is in position III. The oil from the pressure source 10 goes into the working cavities of the friction clutches 6 and 7, which are included. This provides a fully blocked drive between the main 1 and additional front 2 and rear 3 drive axles.

The use of the proposed device will allow ensuring the compactness of the Differential axial drive, different variants of its blocking depending on the operating conditions.

Claims (1)

Invention Formula Six-wheeled traction means, containing the main and two additional driving axles, connected to each other by two axle differentials with friction clutches, 0 Q The control theme, which includes the source of pressure of the working fluid, is communicated by hydrolines through a three-way valve with friction clutches and a drain, characterized in that, in order to reduce the dimensions of the differential axle drive, both the center differential are asymmetric, placed in the same housing with the drive from one gear of the gearbox, where the sun gear of the first differential is connected to the front additional drive axle, the crown gear of the first differential is connected with via a friction clutch - with the sun gear of the second differential and an additional rear axle drive, drove the first differential connected with the crown gear of the second differential, drove of which is connected through a friction clutch with gear gear, made four-line, in which the first line is connected to a pressure source, the second one is connected with a sprue-third one-third with the working cavity of one friction clutch, the fourth one with a working cavity other a friction clutch, in the first position of the three-position distributor the first line communicates with the third, second and drain, and the fourth - with the third, in the second position the first line communicates 0 five five The third is in the third position, the first line is communicated from the fourth and third.