CS244325B1 - Device for distribution of power by crankshafts on a split-frame tractor - Google Patents

Abstract

It is an object of the invention to distribute the power mechanically from the motor to the clutch, to the gearbox to the axles, to the winch and to the power take-off on the split-frame tractor. This purpose is achieved by arranging the aggregates and the crankshafts so that the upper shafts run from the gearbox to the winch and the power take-off gearbox, and further to the downward reduction of the power take-off shaft and the lower shaft to the front and rear axles. The power distribution can be used on a multi-purpose tractor designed for agricultural work and for winch work, eg. logging.

Description

It is an object of the invention to distribute power in a mechanical manner from a clutch engine, via a gearbox to an axle, to a winch and a power take-off shaft on a split-frame tractor.

This is achieved by the arrangement of the aggregates and the universal joint shafts such that the upper shafts lead from the gearbox to the winch and the PTO gearbox and further downward reduction of the PTO shaft and the lower shafts lead to the front and rear axles.

Power distribution can be used on a multi-purpose tractor designed for agricultural work and at the same time for work with winch, eg. in logging.

--And

The invention solves the power distribution by articulated shafts on a split-frame tractor from the internal combustion engine through the gearbox to the axles, to the winch and to the PTO.

Previously used tractors with conventional concen- tration, front steering axle, have a PTO from the transmission. The power take-off shall be taken from the power take-off to power tools and work equipment for agricultural work or to drive a winch at a three-point linkage if the tractor is adapted to haul wood. In this way, the tractor can work either with agricultural implements and does not have a winch mounted, or with a winch, and then cannot perform agricultural work. Another possible solution is that one of the two units is powered by a hydromotorm, but this requires further expansion of the hydraulic system on the tractor.

Articulated tractors have either a winch with a protective shield at the rear if they are designed for wood-centering or a three-point linkage, not always equipped with a power take-off for agricultural work. It is not possible to equip the tractor with a winch and a three-point linkage with PTO drive.

These drawbacks are overcome by a power distribution device according to the invention, which consists of a drive shaft between the clutch combustion engine and the gearbox, behind the gearbox another drive shaft is supported in the upper bearing, followed by the drive shaft mounting into the gearbox. power to the PTO reel and gearbox from where the PTO shaft leads to a downward reduction, terminated by the PTO shaft, with the PTO shaft leading to the front axle from the bottom of the gearbox and another PTO shaft passing through the lower bearing to the rear axle.

The power distribution of the articulated shaft according to the invention allows simultaneous drive of the axles, the winch and the PTO. When using the same gearbox, independent and dependent speeds can be achieved on the PTO shaft. The articulated shafts can be arranged so that the angles of breakage at both ends of each shaft are the same, even when the frames are broken and crossed, thereby eliminating the fluctuation of the transmitted torque during one revolution of the shaft, thus eliminating the so-called. cardan error. . ;

The invention can be used on mobile machines and tractors with a split frame for mechanically distributing torque to the axles and two working units.

The drawing shows an example of power distribution by articulated shafts on a split frame tractor according to the invention. In FIG. 1 is a schematic arrangement of a universal joint with a marked unit.

From the flywheel of the internal combustion engine 1 through the clutch 2, the articulated shaft 10 is transmitted to a transmission 3 which, after adjusting the output speed, distributes the power to the front axle 8 via the articulated shaft 15 and the rear axle 9 via the articulated shaft 16, lower bearing 17 and articulated shaft. 18. Further output is from the upper part of the gearbox 3 via the drive shaft 11, the upper bearing 12 and the drive shaft 13 to the gearbox 4. The gearbox 4 distributes the power to the winch 6 and through the gearbox 5 and the drive shaft 14 to the downward reduction 7 shaft 21.

The lengths of the articulated shafts 11, 18 may be selected such that the vertical axis 19, about which the front and rear parts of the tractor turn in the center of the articulated shaft and at the same distance from the cross pins. This arrangement ensures that the cardan error is eliminated even when the tractor turns. A similar situation occurs when the rear of the tractor crosses the front about the longitudinal axis 20, overcoming the unevenness of the vertical obstacle.

Claims (1)

SUBJECT Equipment for power distribution by articulated shafts on a split-frame tractor, consisting of an internal combustion engine with a clutch, a transmission, a PTO, a winch, a downward reducer, axles and an articulated shaft connecting these units to the engine and to each other; the engine (lj with clutch (2) and gearbox (3) is a universal joint shaft (10), behind the gearbox (3) there is a universal joint shaft (11) supported by an upper bearing (12) followed by a universal joint shaft [13] to the axle (4) which is connected to the winch (6) and the gearbox (5) from where the universal joint (14) leads to a downward reducer (7) terminated by a power take-off shaft [21], a universal joint shaft (15) to the front axle (8) and a universal joint shaft (16) through the lower bearing (17) and a universal joint shaft (18) to the rear axle (9).