RU2551106C1 - Combine harvester - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: invention relates to agriculture machine building. The combine harvester includes cutting platform 19, frame 1, engine 15, contact 7 and contact-convection 6 dryers, bottom 8 and top fans, and cabin 26. The engine 15 is installed at bottom on the frame 1 front part and has device for easy start-up 3. At frame rear part a fuel tank 49 and hydraulic system tank 51 are installed. Compressed air is supplied to the fuel tank 49 and to the hydraulic system tank 51 via the reducing valve. Front side of the contact-convection dryer 6 has window, and side trays 31 are welded to it. Above the contact-convection dryer 6 the leveling conveyor 37 is installed. Above the leveling conveyor 37 there is sieve 35 installed using hangers 36. Above the sieve 35 to the frame of top conveyor 32 using the concave pressing hydraulic cylinders 33 the tray 34 is suspended. To frame of the top conveyor 32 the rear tray 38 is welded with connected extension 41. Top fan is installed in front of the tray 34. Cabin 26 contains control unit of the combine harvester 110, and control and alarm unit.

EFFECT: use of the combine harvester decreases power consumption per crops harvesting and drying.

9 dwg

Description

The invention relates to devices in the field of agricultural engineering, intended for harvesting grain crops.

Known combine harvesters with drum-deck and axial-rotary threshers designed for harvesting crops and containing a header, threshing and separating device, hopper, frame, engine and chassis (N.I. Klenin, V.A. Sakun. Agricultural and Land reclamation machines. M.: “Kolos.” 1994. S.402-409).

The main disadvantages of these combines are: the high center of mass position due to the upper position of the engine and the hopper, the high energy intensity of the harvesting process due to the threshing of the whole grain mass, the wasteful use of fuel energy, manual control of the whole combine and its working bodies.

A threshing device is known (SU 1132840, A01F 7/02, 1985), which produces grain separation from the bread mass by wiping and containing the upper and lower conveyor belts mounted on the rotors eccentrically, and the rotors of the upper conveyor belt are out of phase relative to the rotors of the lower conveyor belt. The disadvantage of the design is the lack of coordination with the overall layout of the combine.

A known combine harvester containing an engine, frame, hopper, lower, upper and inclined conveyors, trough, diametric and centrifugal fans, header, hydraulic accumulators (RF patent No. 2486737), adopted as a prototype. The disadvantage of the combine is the manual control of the combine and its working bodies.

The objective of the invention is the creation of a semi-automatic combine harvester with the selection of grain from the grain mass by wiping and drying.

The problem is solved by the fact that the proposed combine harvester mows only the upper part of the grain mass, and cuts the straw into the vine, threshing the spikelets by wiping, drying the milled grain using heat from exhaust gases and cooling systems, engine lubrication, and pressurized air. The management of the proposed combine is carried out in a semi-automatic mode.

New significant features:

- an engine equipped with a start-up facilitator is installed at the bottom, on the front of the frame;

- on the one hand, the combine speed variator is connected to the engine clutch, and the range box is attached to the combine speed variator;

- near the engine are placed clutch control pneumatic cylinders and a clutch control lever;

- on the other hand, a mechanism for transmitting torque to the counter-drive is attached to the engine ;.

- from the counter-drive, the torque is transmitted by a closed gear equipped with a speed controller of the upper fan;

- on the frame, under the contact and contact-convective dryers, there is a lower fan;

- a radiator for cooling the charge air is connected to the lower fan;

- a return pipe is also connected to the lower fan;

- the window in the return pipe closes the shutter, pressed by the springs;

- a grain pipe pivotally connected to the grain pipe control hydraulic cylinders is pivotally attached to the return pipe;

- the sensor rod with the capacitive sensor located at its end is also pivotally connected to the return pipe;

- Between the return pipe and the contact-convective dryer there are: receiver, hydraulic accumulators and hydro-pneumatic accumulators;

- a fuel storage tank and a hydraulic system tank are installed on the rear of the frame, to which compressed air is supplied through the gearbox;

- in the front wall of the contact-convective dryer, at the top, there is a window, and side trays are welded to it;

- a leveling conveyor is installed above the contact-convection dryer;

- above the leveling conveyor is a sieve suspended on suspensions;

- a gutter is located above the sieve, suspended from the upper conveyor frame on the hydraulic cylinders of the deck preload;

- the upper conveyor frame, gutter, sieve and leveling conveyor are installed at the top, on the frame, with an inclination to the front of the combine;

- the rear tray is welded to the frame of the upper conveyor, and the extension is attached to it;

- an upper fan is installed in front of the gutter;

- the gutter and sieve lead to the oscillatory movement of the wings;

- the upper conveyor drives the hydraulic motor drive the upper conveyor;

- the leveling conveyor drives the hydraulic motor of the leveling conveyor;

- the combine has pressure sensors, shock sensors, a temperature sensor, an electromagnet for a large rash of a contact convection dryer, an electromagnet for a small rash of a contact convective dryer, an electromagnet for a small rash of a contact dryer, an electromagnet for a large rash of a contact dryer, an electric motor with a worm gear, an electric motor, exhaust flap control electromagnet;

- in the cab there is a combine control unit, as well as a control and alarm unit.

The listed new essential features are sufficient in all cases to which the requested scope of legal protection applies.

The combination of known and significant distinguishing features of the inventive combine harvester is not known from the prior art and does not follow from it in an obvious way.

A new technical result is that the use of the proposed combine harvester will reduce energy consumption for cleaning and drying grain in the drying and sorting station and will facilitate the work of the machine operator.

Figure 1 shows a diagram of the harvester, left view; figure 2 - diagram of the harvester, right side view; figure 3 is a diagram of the harvester, front view; figure 4 is a diagram of the harvester, a top view; figure 5 - arrangement of fixed assets of automation; figure 6 is a view A; Fig.7 is a view of B; on Fig - view; figure 9 is a view of G.

Frame 1 (Figs. 1, 2) is supported by steered wheels 2 and drive wheels 18. At the bottom of the frame are fixed: a contact convective dryer 6 with side trays 31, a contact dryer 7, a diametrically lower fan 8 with a charge air cooling radiator 9, driven in rotation through the speed variator of the lower fan 61, the oil-water heat exchanger 10, the compressor 11, the pump 60, the engine 15 with the clutch, the fuel storage tank 49, the hydraulic tank 51, and above the cab 26 (Figs. 1, 2, 3 , 4) with a box for tools and batteries 24, platform 42 with handrails 30 and 50. The ladders are attached to the platform ramps 22.

The engine is equipped with a start-up facilitator 3 (FIG. 1). The torque from the engine to the drive wheels is transmitted by the speed variator of the combine 14 and the range box 16 with hydraulic clutch. Around the engine are also placed pneumatic control cylinders 12 mounted counterclockwise and connected to the control lever clutch 13.

The inclined conveyor 23 (FIGS. 1, 2) moves the control cylinders of the inclined conveyor 27 along the guides. The header 19 is attached to the inclined conveyor, equipped with a reel, a disk cutting apparatus, straw choppers and a stem lifter, also resting on supporting hydraulic cylinders 20. The header body is fixed relative to the frame combine two hydraulic cylinders fixing header 21.

At the top, a diametrical upper fan 29, a frame of the upper conveyor 57 with a rear tray 38 and an extension 41, and a leveling conveyor 37 are connected to the frame. The upper conveyor 32 is mounted on the frame of the upper conveyor 32. A rectangular grain return pipe 39 is laid upward from the lower fan. The torque from the engine to the inclined conveyor, the upper fan is transmitted: a torque transmission mechanism 59, a counter-drive 25 and a closed gear 28, equipped with a speed controller 58 of the upper fan.

A gutter 34 with a deck and a sieve is suspended from the frame of the upper conveyor by means of hydraulic cylinders for pressing the deck 33, and a sieve 35 is suspended through the hangers 36. The wings 17 cause the gutter and sieve to oscillate. The hydraulic drive motor of the upper conveyor 56 drives the upper conveyor, and the leveling conveyor - the hydraulic drive of the leveling conveyor 55.

In the bosom formed by the inclined wall of the contact-convection dryer and the return pipe, there are: a decks 45 hydraulic pressure accumulator, a receiver 46, a header 4 hydraulic pneumatic accumulator, a 5 hydraulic accumulator, an auxiliary 53 hydraulic accumulator and a 54 belt tension hydraulic accumulator. tanks to prevent particles and dust from entering the fuel and hydraulic fluid.

A window located at the rear in the return pipe is closed by a pivotally attached damper 43 pressed by the springs 40. Below the damper, a grain wire 48 is controlled pivotally, controlled by hydraulic cylinders for controlling the grain wire 44. A spring-loaded flexible sensor rod 47 is pivotally attached to the return pipe.

The automation equipment is placed on the combine (Fig. 5): pressure sensors 64, 65, 67, 70, 73, 75 and 81, shock sensors 66 (Fig. 5, 7), 68 (Fig. 5), 69, 71 and 72, a capacitive sensor 74, a temperature sensor 63, an electromagnet of a large rash of a contact convection dryer 76, an electromagnet of a small rash of a contact convection dryer 77, an electromagnet of a small rash of a contact dryer 78, an electromagnet of a large rash of a contact dryer 79, an electric motor with a worm gear 80, an electromagnet exhaust flap control 82, sweat control motor 83 outside air, and in the cockpit - control and alarm unit (BUS) 62.

In the cab of the harvester (Fig.6) are also placed: a battery switch 84, a control pedal of the speed variator of the combine 85, interlocked with the pedal 90, the brake pedal lock lever 86, the right brake pedal 87, the brake lock lever 88, the left brake pedal 89, pedal of the variator shaft speed variator 91 control switch, combine mode switch 92, steering wheel 93, horn button 94, range switch 95.

On the upper panel of the cab there are: a dial rotation indicator of the cutting apparatus 96, a contact convection dryer overflow indicator 97, a contact convection dryer full indicator 98, a leveling conveyor 99 alarm, a contact dryer overflow 100 alarm, a control panel engine 101, the speed indicator of the shaft of the stem lifter 102, the speed indicator of the lower fan 103, the speed indicator of the upper fan 104, the temperature indicator in the groove 105, the alarm regrev grain "106, the control board hydraulic system and a pneumatic system 107, lighting control board 108 and the display 109.

On the left wall of the cab there are (Figs. 8, 9): combine harvester control unit (BUK) 110, scroll time regulator 111, pressure gauge in supporting hydraulic cylinders 112, pressure regulator in basic hydraulic cylinders 113, pressure gauge in hydraulic cylinders of deck preload 114, the pressure regulator in the hydraulic cylinders for preloading the deck 115, the button for transferring pressure control in the hydraulic cylinders for preloading the deck to automatic mode 116, the “start” button 117, the lever for controlling the window lifter in height 118, the lever for switching the unloading mode 119, the lever for switching the mode for moving Spruce 120, buttons for fixing the position of the support hydraulic cylinders 121, buttons for fixing the header 122, buttons for controlling the position of the header 123 and buttons for controlling the direction of the exhaust gases 124 of the engine.

In order to minimize errors caused by erroneous actions of the machine operator, the combine is controlled mainly by the combine control unit (ACU) and the control and signaling unit (ACC). The machine operator controls only the direction and speed of the combine, and also controls its operation. He sets the desired program by moving the combine mode switch and the unload mode switching lever.

Warm Up Mode

The combine mode switch is in the “Stop” position. The brake release lever locks the brake pedal of the left wheel and the brake pedal of the right wheel. The lever of switching the engine mode in position "0". The direction of the exhaust gas is “out”. The pressure regulator in the deck preload hydraulic cylinders is set to a minimum.

Machine operator: sets the “scroll time” regulator to the desired duration of testing the combine devices; includes a battery switch; presses the start button. At the same time, at set intervals, the combine control unit:

- opens the air supply from the receiver to the clutch control pneumatic cylinders, opening the clutch (if the air pressure in the receiver is insufficient or absent, the machine operator opens the clutch by the clutch control lever before pressing the "start" button);

- includes a start-up facilitator, air from the receiver and flammable liquid enter the inlet of the engine;

- includes an engine starter;

- moves the engine mode switch from position “0” to position “warm-up”;

- when the crankshaft of the engine acquires an angular speed corresponding to the nominal angular speed in the position of the engine mode switch “warm-up”, it turns off the starter and the start-up facilitator;

- includes a compressor that pumps air into the receiver;

- when the nominal air pressure in the receiver is reached, it opens the flow of compressed air into the hydro-pneumatic accumulator of the belt tension, the belt is tensioned;

- when the nominal air pressure in the hydraulic tension accumulator of the belt tension is reached, it opens a stream of compressed air into the hydraulic pneumatic accumulator of the supporting hydraulic cylinders and the hydraulic pneumatic accumulator of the deck preload hydraulic cylinders;

- when the desired air pressure in the hydraulic accumulators is reached, it includes the hydraulic pump of the engine, the main hydraulic accumulator and auxiliary hydraulic accumulator are pumped;

- carries out the lifting of the header;

- includes the hydraulic motor of the leveling conveyor drive and the hydraulic motor of the top-conveyor drive;

- the torque transmission mechanism includes a counter-drive, a closed transmission, driving the upper fan, the inclined conveyor and the oscillating movement of the trough and sieve;

- includes drives of header elements;

- after the set scroll time has elapsed, it turns off all hydraulic motors and drives, opens the flow of working fluid to the hydraulic compressive couplings of the range box;

- Moves the engine mode switch to the idle position.

Warming up the engine continues until the coolant temperature in it reaches + 40 ° C. At this time, the combine control unit disables the execution of other programs.

Drive Mode

Machine operator: switches the range switch to the desired range; translates the brake lock lever, releasing the brake pedal of the left wheel and the brake pedal of the right wheel; transfers the switch of the combine mode from the “Stop” position to the “Drive” position, and at the set intervals, the combine control unit:

- moves the engine mode switch from the idle position to the warm-up position;

- closes the air supply from the receiver to the coupling control pneumatic cylinders, the cavity of the pneumatic cylinders communicates with the atmosphere, the coupling closes and the movement of the combine begins.

The machine operator sets the required speed with the control pedal of the speed variator of the combine. If desired, he can use the right or left pedal.

Stop mode

The machine operator switches the switch of the combine mode from the “Drive” position to the “Stop” position, and at the set intervals, the combine control unit:

- moves the speed variator of the combine to a position corresponding to the minimum gear ratio;

- opens the air supply from the receiver to the clutch control pneumatic cylinders and the clutch opens;

- brakes the harvester;

- moves the engine mode switch from the "warm" position to the "idle" position;

- closes the supply of working fluid to the hydraulic clutch box range.

Work mode

Machine operator: sets the unloading mode switching lever to the “Semi-automatic” or “Semi-automatic with a delay” position; the exhaust gas direction control button sets the gas direction “for drying”; the pressure regulator in the deck preload hydraulic cylinders sets the desired pressure, and then presses the button to put the pressure control in the deck preload hydraulic cylinders into automatic mode; the range selector selects the desired range depending on the cleaning conditions; puts the combine mode switch from the Stop position to the Work position. At the same time, at set intervals, the combine control unit:

- moves the engine mode switch from the idle position to the warm-up position;

- turns on the hydraulic motor of the drive of the upper conveyor;

- the torque transmission mechanism includes a counter-drive, a closed transmission, driving the upper fan, the inclined conveyor and into the oscillation of the chute and sieve;

- includes drives of header elements;

- turns on the drive of the lower fan, tuned to the maximum speed;

- moves the engine mode switch from the "warm" position to the "maximum" position;

- opens the supply of working fluid to the hydraulic clutch box range;

- brakes the harvester;

- closes the air supply from the receiver to the clutch control pneumatic cylinders, the clutch closes and the movement of the combine begins.

When working on the field, the machine operator sets: pressure in the reference hydraulic cylinders, the speed of the combine, the rotational speed of the shaft of the stem lifter, the position of the stem lifter in height, the position of the header in height and the direction of the exhaust gases. The operation of the remaining elements of the combine is controlled by a control and alarm unit.

The header cuts off the upper parts of the plants and shreds the straw. The inclined conveyor delivers the upper parts of the plants to the gap between the upper conveyor and the deck of the gutter. The upper conveyor and the deck of the gutter wipe the grain from the ears. It passes through the slots of the deck and the sieve to the bottom of the gutter. The threshed upper parts of the plants on the back tray and extension slide off onto the soil. There, under the action of the air flow created by the upper fan and consisting of a mixture of engine exhaust gases and air, floor and pieces of straw that do not pass through the sieve of the gutter are sent. Grain slides forward through the gutter and enters the contact drier.

When the machine operator presses the button for transferring the pressure control in the deck preload hydraulic cylinders to automatic mode, it supplies power to the shock sensors 69 and 71. If the kernels get on the sensor 71, the air supply from the pneumatic system to the deck pre-accumulator hydropneumatic accumulator opens. At the same time, the pressing force of the trough deck to the lower branch of the upper conveyor increases, increasing the intensity of wiping the grain from the spikelets. If the grains do not fall on the sensor 69, the message of the hydraulic accumulator for preloading the deck with the atmosphere opens. The force of pressing the deck of the gutter to the lower branch of the upper conveyor is reduced, reducing the intensity of wiping grain from spikelets. This automatically adjusts the intensity of wiping grain from spikelets. To reduce the likelihood of a false alarm, voltage is supplied to the sensors by pulses. If the kernels, despite adjusting the pressure in the deck accumulator hydropneumatic accumulator, get to the sensor 71 for more than 30 s, an intermittent high-pitched sound signal is emitted. The machine operator stops working and identifies the cause of the unsatisfactory wiping of the grains from the spikelets.

At the beginning of the grain filling of the contact dryer, the pressure sensor 81 is activated and the message "Filling the contact dryer" is displayed. When the grain level in the contact dryer reaches the pressure sensor 65, the electromagnet of the small rash of the contact dryer 78 is triggered. The grain flowing from the contact dryer picks up the air flow generated by the lower fan and directs it through the return pipe to the sieve, and through it to the contact convection dryer . In this case, steam and dust fly out the gap "Щ" (Fig. 1, 2) between the trench and the sieve. Large particles are held up by the sieve; they slide off the sieve onto the side gutters, and from there to the ground.

The rotational speed of the lower fan, when the switch mode switch is set to “work”, is set automatically. Initially, the lower fan speed is maximum. A decrease in the rotational speed of the lower fan occurs while the grains act on the shock sensor 68. If the grains begin to fall on the shock sensor 72, the rotational speed of the lower fan increases.

When the grain in the contact dryer reaches the level of the pressure sensor 64, the electromagnet of the large rash of the contact dryer 79 is triggered. The amount of grain flowing out of the contact dryer is usually greater than the amount of grain entering it. The grain level in the contact dryer is reduced to a pressure sensor 65. In this case, the electromagnet of the large rash of the contact dryer 79 is turned off. This way the desired grain level in the contact dryer is automatically maintained. The amount of grain flowing out of the contact dryer in the “large rash” position is automatically regulated by an electric motor with a worm gear 80.

With a local increase in productivity, the grain can overflow the contact dryer, pouring through the window "OK" (Fig.7) in the wall of the contact-convection dryer, acting on the shock sensor 66 (Fig.5, 7). At the same time, the “contact dryer overfilled” indicator lights up and an audible signal of a certain tonality is heard. In response to the signal from the shock sensor 66, the control and alarm unit sends a long pulse of current to the electric motor with a worm gear, which opens the maximum grain flow from the contact dryer. The contact dryer is unloaded until the grain stops acting on the pressure sensor 64. Then, the optimal flow of grain from the contact dryer in the “large rash” position is repeated.

When grain enters the contact-convection dryer, the pressure sensor 75 is activated and the message “Filling the contact-convection dryer” is displayed, the voltage is applied to the electromagnet of the small rash of the contact-convection dryer 77. The grain that is drawn from the contact-convection dryer is also picked up by the air flow, created by the lower fan, and through the return pipe through the sieve returns to the contact convection dryer. This prevents overheating of the grain from prolonged contact with heated walls. A part of the air flow created by the lower fan penetrates from below into the contact and contact-convection dryers, creating a block of air necessary for the removal of steam from the dryers. This is the preliminary drying of grain in the combine.

The top fan directs the mixture of exhaust gases from the engine and outside air into the gutter. Temperature sensor 63 monitors the temperature inside the gutter. The signals from the temperature sensor enter the control and alarm unit. When the temperature goes beyond the set interval, the electric motor 83 is turned on (Fig. 5), which increases or decreases the supply of external air to the upper fan, and from there to the chute. If the temperature in the gutter rises even more, the signal from the temperature sensor enters the control and signaling unit, the “grain overheat” indicator lights up and an audible signal of a certain tone is heard. In this case, the control and signaling unit sets the direction of the exhaust gases "out" and the machine operator finds out the cause of the increased temperature in the gutter.

When the grain reaches the level of the pressure sensor 65, the hydraulic motor of the leveling conveyor drive is switched on. At the same time, the leveling conveyor indicator lights up in the cab. The leveling conveyor moves the grain at the top of the contact-convection dryer from the front to the rear, contributing to uniform filling.

Unloading mode "semi-automatic

When the pressure sensor 70 is activated, the voltage is supplied to the contact-convection dryer full indicator and the combine control unit:

- moves the speed variator of the combine to a position corresponding to the minimum speed;

- opens the air supply from the receiver to the clutch control pneumatic cylinders and the clutch opens;

- brakes the harvester;

- moves the combine mode switch from the “Work” position to the “Drive” position;

- moves the engine mode switch from the “maximum” position to the “warm” position;

- puts the range switch in the "reverse" position;

- brakes the harvester;

- closes the air supply from the receiver to the clutch control pneumatic cylinders, the clutch closes and the combine starts moving backward;

- after moving the combine in reverse to a distance of 2 m, it moves the combine mode switch from the “Drive” position to the “Stop” position;

- opens the air supply from the receiver to the clutch control pneumatic cylinders and the clutch opens;

- brakes the harvester;

- by means of a torque transmission mechanism disables the counter-drive with a closed gear; cuts off the supply of working fluid to all hydraulic motors and the air supply to the drive of the cutting discs of the header;

- moves the engine mode switch from the "warm" position to the "idle" position;

- translates the direction of exhaust gases "out" if the vehicle is late.

Preparation Mode

When approaching a vehicle, the machine operator transfers the shift mode switch of the unloading mode from the “Semi-automatic” position to the “Preparation” position, while the combine control unit:

- disables the lower fan;

- opens the flow of working fluid into the hydraulic cylinders for controlling the grain pipe, and the grain pipe, the rear tray, the sensor rod are raised from position I to position II (Fig. 5); while the grain pipe turns the flap, which overlaps the upper part of the return pipe, and fits into the lower part of the return pipe;

- a capacitive sensor 74 supplies power.

Unload mode

When the vehicle arrives at the rear, the operator transfers the lever for switching the unloading mode from the “Preparing” position to the “Unloading” position, while the combine control unit turns on the lower fan and sets it to the maximum speed using the lower speed fan speed variator. If the vehicle approaches the combine at an unacceptable distance, the capacitive sensor will trigger and an audible signal will sound, the tonality and volume of which will increase as the vehicle and the combine approach. Moreover, the lever for switching the unloading mode from the “Preparation” position to the “Unloading” position cannot be transferred.

Since the pressure sensor 65 of the contact dryer is blocked during unloading, when the grain level drops below it, unloading of the contact dryer continues until it is completely empty. This prevents overheating of the grain. When the effect of grain on the pressure sensor 71 ceases, with a certain delay the message “Contact dryer is empty” is displayed.

When the unloading of grain from the contact-convection dryer to the vehicle begins, the voltage is applied to the electromagnet of a large rash of the contact-convection dryer. The contact-convective dryer is unloaded from the grain. When the grain level decreases to the pressure sensor 67, the leveling conveyor is turned off and the “leveling conveyor” indicator goes out.

When the effect of grain on the pressure sensor 75 stops, with some delay the display shows “Contact convection dryer empty”, and the combine control unit:

- disables the lower fan;

- opens the flow of working fluid from the cavities of the hydraulic cylinders to control the grain pipe to drain into the tank of the hydraulic system; grain pipeline, the rear tray and the sensor rod fall into position I (figure 5);

- turns on the bottom fan.

Machine operator:

- transfers the lever for switching the unloading mode from the "Unloading" position to the "Semi-automatic" or Semi-automatic with a delay "position;

- the button for controlling the direction of the exhaust gases sets the direction "for drying";

- the range selector selects the desired range;

- the combine mode switch transfers from the Stop position to the Work position, resuming harvesting.

Unloading mode "semi-automatic with a delay"

It is carried out when you need to work without stopping to the end of the field. For this, in the contact-convection dryer there is a reserve volume of about 0.5 m ³ . In this position of the unload mode switching lever, when the pressure sensor 70 is activated, the “contact convective dryer is full” indicator lights up, but the action of further commands is blocked. At the end of the rut, the machine operator, after stopping the combine, transfers the switch of the combine mode from the “Work” position to the “Stop” position, while the combine control unit:

- moves the engine mode switch from the “maximum” position to the “warm” position;

- executes commands of the "stop" mode.

Then the machine operator together with the combine control unit executes the commands of the “preparation” and “unloading” modes. If the unloading mode “semi-automatic with a delay” has been set, but the grain level has risen to the pressure sensor 73, the contact-convective dryer overflow warning light in the cabin lights up and the semi-automatic mode program starts.

At the end of work, after unloading grain, the machine operator:

- sets the pressure regulator in the hydraulic cylinders preload deck minimum pressure;

- the button for controlling the direction of the exhaust gases sets the direction of the gases "out".

After the combine has been parked and stopped, the machine operator uses the brake lock lever to hold down the brake pedal of the right wheel and the brake pedal of the left wheel and switches the engine mode switch from the “idle” position to the “0” position, while the combine control unit:

- turns off the fuel supply, the engine stops;

- releases air from hydropneumatic accumulators, easing the tension of belts and conveyors;

- closes the air supply from the receiver to the pneumatic cylinders that control the clutch, and the clutch closes;

- disconnects the batteries.

Claims (1)

Combine harvester containing a frame, engine, wheels, header, contact and contact convection dryers, lower fan, return pipe, grain leveling, upper and inclined conveyors, chute, sieve, upper fan and cabin, characterized in that the engine is equipped with a start-up facilitator, mounted at the bottom of the front of the frame, on one side of the engine coupling a speed variator of the combine is connected, and a variator box is attached to the variator of the speed of the combine, control cylinders are placed near the engine the clutch and the clutch control lever, on the other hand, a mechanism for transmitting torque to the counter-drive is attached to the engine, and from the counter-drive the torque is transmitted by a closed gear equipped with an upper fan speed controller, on the frame, under the contact and contact-convection dryers, there is a lower fan to which, on the one hand, a radiator for cooling the pressurized air is connected, and on the other, a return pipe, a window in which closes the shutter pressed by the springs to the hinge return pipe but a grain pipe controlled by grain pipe control cylinders is connected, a sensor rod with a capacitive sensor located at its end, and between the return pipe and the contact-convective dryer there are: a receiver, hydraulic accumulators and hydraulic accumulators, a fuel storage tank and a hydraulic system tank are installed on the rear of the frame; compressed air is supplied through the gearbox, in the front wall of the contact-convective dryer, at the top there is a window, and side trays are welded to it, installed above the contact-convective dryer leveling conveyor, above which there is a sieve suspended on suspensions, and above the sieve there is a gutter suspended from the upper conveyor frame on the deck pre-hydraulic cylinders, the upper conveyor frame, gutter, sieve and leveling conveyor are mounted on top of the frame with an inclination towards the front of the combine, to the back conveyor is welded to the frame of the upper conveyor, and an attachment is attached to it, an upper fan is installed in front of the gutter, the gutter and sieve are driven by the wings, the upper conveyor is the drive motor the top conveyor, and the leveling conveyor - the leveling conveyor hydraulic motor, in addition, the combine has pressure sensors, shock sensors, a temperature sensor, an electromagnet for a large rash of a contact convective dryer, an electromagnet for a small rash of a contact convection dryer, an electromagnet for a small rash of a contact dryer , an electromagnet of a large rash of a contact drier, an electric motor with a worm gear, an electric motor, an electromagnet for controlling the exhaust flap, and in the cab there is a combine control unit, as well as a control and alarm unit.

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