SU1369933A1 - Tractor provided with power-take-off system - Google Patents

Abstract

The invention relates to agricultural machinery, extends the functionality and increases the efficiency of emergency and diagnostic work in the conditions of agricultural production. The tractor is equipped with a power take-off reducer mounted on the frame of the tractor or trailer, made double-flow with output shafts that are disconnected from the couplings, one of which is mechanically connected to the rotor of the electric generator, which is connected electrically via the control panel to the welding unit or load resistor for braking during diagnostics engines. When the generator 16 is fully electrically loaded, the power from the engine is transferred to the gearbox for removal, power through an independent shaft 3 with a nominal speed of the engine 1 to the included clutch 14 to the electric generator 16, while the clutch 9 is disconnected. As the frequency of rotation decreases, the frequency of the generated electricity also changes. When the engine is partially loaded, determined by the load sensor 17, the operator reduces the number of engine revolutions and by turning on the corresponding transmission of the synchronous power take-off shaft, ensures the constant frequency of rotation of the electric generator. 2 Il. from $ (L W13 00 05 00 co

Description

uz 7

The invention relates to mechanical engineering, in particular to self-propelled machines, and can be used in agricultural facilities of high power, as well as in special machinery.

The purpose of the invention is to expand the functional capabilities and increase the efficiency during emergency and diagnostic and diagnostic work in the conditions of agricultural production.

FIG. 1 shows a tractor with a complex power take-off, side view; in fig. 2 same, top view.

The power take-off system contains the engine 1, a gearbox 2 with independent and synchronous shaft 3, having the ability to work with the drive off on the tractor chassis, connected by a cardan drive 4 to a double-flow power take-off gear 5 having a gear on the shaft 6 connected via a gear wheel

8 and friction hydropic clutch

9 with a mechanical power take-off shaft 10 and through gears 11, 12 and 13 and a clutch 14 by means of an elastic clutch

15 with an electric generator 16 with a load sensor 17, as well as a welding unit 18 or a load resistor 19 and a common control panel 20 controls connected to the electric generator 16.

The device works as follows.

in a way.

When the generator 16 is fully electrically loaded, the power from the engine is transmitted to the power reduction gearbox via an independent power take-off shaft 3 with the rated engine speed 1 and the clutch 14 switched on to the electric generator 16. At the same time, the clutch 9 is disconnected,

When the generator 16 is partially loaded, depending on the current value of the electrical power of the connected objects, it is necessary to reduce the frequency and rotation of the engine shaft in order to reduce fuel consumption. But as the frequency of rotation decreases, the frequency of the generated electricity also changes. When the engine is partially loaded, determined by the load sensor 17, the operator reduces the number of engine revolutions and by turning on the corresponding transmission of the synchronous power take-off shaft provides

constant frequency of rotation of the generator.

When the generator is partially loaded, part of the engine's energy can be transferred through the additionally connected hydro-compression coupling and shaft 10 to the drive of the additional unit, for example, a water pump for pumping out water or extinguishing a fire.

In order to ensure welding, the generator 16 is connected via a common console 20 to the welding unit 18.

For diagnostic braking of engines of various agricultural machines (tractors, combines, etc.), the mechanical power of the engine of agricultural machines is transmitted through the power take-off shaft 10 to the included hydraulic sliding clutch 9, gears 8, 7, 11, 12 and 13 and the included gear 14 to the electric generator 16, from which electrical power is transmitted through the common control panel 2 to the load resistor 19. By varying the resistance of the rheostat, the load on the engine of agricultural machines is regulated and its diagnostics and control are provided ings.

When diagnosing engines of tractors and combines with a power greater than the power of the electric generator 16, the engine 1 can additionally be used for braking. In this case, a synchronous or independent power take-off shaft should also be included in the 2 gearbox to connect the engine 1 to the driveshaft 4 . By switching on various gears in the transmission box 2 and by changing the position of the fuel pump lever, the drive power of the engine 1 is regulated during diagnostic braking of various agricultural machines.

When the engine 1 is out of service, power supply and welding can be provided by connecting another agricultural machine to the engine power take-off shaft 10. In this case, the shaft 3 must be disconnected from the engine 1 in the gearbox 2, and the couplings 9 and 14 are included. Formula inventions

A tractor with a power take-off system containing a transmission for driving the tractor chassis, having an independent and synchronous power take-off shaft with a cut-off clutch, with which the power take-off reducer is connected with the output shaft, an electric generator with a control panel different from that, with the aim of expanding the functional capabilities and increasing the efficiency during emergency recovery and diagnostic works under the conditions of agricultural production,

The power take-off torch installed on the frame of the tractor or trailer is double-threaded with an additional output shaft with its disconnectable coupling coupled kinematically to the electric generator shaft, which is electrically connected through the control panel to the welding machine and the load resistor, while the output shaft of the gearbox performed with

coupling it off from the power shaft of the transmission.

FIG. 2

18

13

20

Claims (1)

SUMMARY OF THE INVENTION A tractor with a power take-off system, comprising a transmission for driving the tractor chassis, having an independent and synchronous power take-off shaft with a clutch, with which the power take-off gearbox is kinematically connected to the output shaft, an electric generator with a control panel, characterized in that , in order to expand the functionality and increase efficiency during emergency repair and diagnostic work in the conditions of agricultural production, the gearbox is selected and the power installed on the tractor frame or trailer is made two-threaded with an additional output shaft with its coupling disconnected kinematically connected to the shaft of the electric generator, which is electrically connected through the control panel to the welding machine Yu and the load rheostat, while the output shaft of the gearbox made with a clutch for disconnecting it from the transmission PTO shaft. 18 19