Device for the control and regulation of the working cylinders

 

The device is intended for control and regulation of the working cylinders, for example, self-propelled harvesting machines. The device comprises a pressure piston cavity, through which Bolotnikova valves connected to the Central hydraulic system of the working unit and via a built-in shutoff valve connected in parallel connection to charge the hydraulic accumulator, and spool valves and shutoff valve is arranged to control of the control system associated with the reference set value, and means are provided which, when the pressure changes, representing an overload or drop a pre-specified value of working pressure, automatically provide hydraulic communication with the discharge or drain line of the hydraulic system, while working rolls are made in the form of working cylinders double-acting one-way safety valve rod pressure cavity which, by means of a switching valve selectively connected with the piston of the pressure cavities with accumulators or with the drain line of the Central hydraulic system and through the spool valves are connected with a t is th is connected with the electronic control system of the harvesting machine and is designed to control and perception of the position of the working piston. The technical result is increased reliability. 2 C.p. f-crystals, 5 Il.

Technical field the Invention relates to a device for the control and regulation of the working cylinders of the front working equipment and components in the working machine, preferably a self-propelled harvesting machines.

The prior art Known is the use of machines and equipment hydraulic or pneumatic working cylinders for the implementation of the rectilinear motion, and with the help of these performance engines can achieve a very high reduction speed and great effort lift or move.

So, for example, patent document FRG 3628477 C2 known working machine with a height-adjustable front working equipment, which is removable attached to a working machine using a hydraulic working cylinder. By means of a hydraulic working cylinder the weight of the front working equipment is transmitted to the working machine and at the same time the working equipment is in the desired working position. The aim of this decision is to reduce the effort of filing and supporting loads from operating equipment, depending on operating conditions and will precede the us with the hydraulic pump through a three-way two-position spool valve, moreover, in the pressure line between Bolotnikova valve and hydraulic work cylinder has a pressure sensor associated control line pressure regulator with a driving device. Another control line pressure regulator is connected with the regulating valve, which is located in a bypass line connecting the pressure line to the drain.

Using this system, the actual value of the pressure in the hydraulic cylinder can be adjusted in the event of deviations from the target value set in the control device, to reduce bearing loads of work equipment or pressure unloading.

A preferred variant of this control system is the subject of European application 0610900 A1. To improve the known device discharge to the pressure side of the hydraulic working cylinder connected load accumulator with built-in front of him additional switching valve, and between the pressure and drain lines for the working environment provided additional switching valve.

Due to a system change-over valve when reaching into the pressure cavity of the hydraulic working cylinder and charge the hydraulic accumulator of galleriesister unloading, and when this accumulator remains associated with the pressure cavity of the working cylinder to maintain the discharge mode.

When the pressure changes unloading, which represent the failure or exceeding the preset value through the system switching valve is automatically set message hydraulic pressure cavity hydraulic working cylinder and accumulator on the discharge or drain line.

Hydraulic system floating hinge for an agricultural device is known from patent document FRG 3337789 A1. In this solution the pressure cavity of the hydraulic working cylinder is connected with the hydraulic pump through the spool valve, and a branch from the pressure line between Bolotnikova valve and pressure cavities of the working cylinders are integrated into the hydraulic accumulator with in front of him additional cylinder with a floating piston.

Due to this hydraulic system floating hinge cleaning or front working equipment self-propelled machine is supported with a preliminary effort, which is determined depending on its mass, so that it can slide on the surface of the earth, prsti vehicles known solutions to a spring suspension axles vehicles with damping. Some of them bearing the load axis of the vehicle are mounted on a rotatable triangular beams, which are connected directly to the frame of the machine with swing, as, for example, in patent documents the Federal Republic of Germany 1480154, 2407970, 2811873. In other solutions bearing the load axis mounted in the swivel levers pivotally mounted on the longitudinal load-bearing elements are pivotally fastened at one end to the frame of the vehicle, as in patent document FRG 1092778.

Directly mounted on the chassis frame triangular balancers or United with the frame longitudinal load-bearing elements associated with hydraulic or pneumatic working cylinder. Due to the attachment of the triangular beams and longitudinal load-bearing elements with the possibility of turning movements and through their interaction with pneumatic spring or a pneumatic working cylinder largely compensated for or are damped vibrations and shocks transmitted from the driving mechanism on the entire machine as it moves. In addition, this improves the adhesion of the wheels to the base and achieved good adjustment running gear for road conditions.

The use or transfer to ing is important in agricultural harvesting machines not possible because required for this constructive spaces.

Self-propelled agricultural machines are equipped with different types of cleaning equipment depending on the harvested material. These types of equipment will inevitably have large differences in mass. For raising and lowering various types of cleaning equipment and to create a regulated, preliminary efforts in lifting and actuating the cylinders in order to maintain the floating hinge working equipment in the process, it is necessary to provide relatively powerful hydraulic equipment.

Differences by weight is particularly high in the types of cleaning equipment self-propelled field of shredders. So, for equipment pickup for harvesting herbs required working pressure of about 4 MPa, while when harvesting corn front mounted cleaning equipment required supply pressures up to 13 MPa. To satisfy these sharply differing conditions, self-propelled agricultural machines when installing front-mounted cleaning equipment relatively high mass in addition to the existing hydraulic lifting cylinder and slave cylinder mount additional cylinders, which is removed when working with front uborochnaya the degree of loading, the condition of the field and mode of operation, requiring different settings cleaning equipment front mounting and driving mechanism. This setting should be made by changing the operating pressure in the hydraulic cylinders, which are very different from each other in a wide range, in order to ensure reliable operation of the vehicle with high performance, low loss of the harvested material and comfortable conditions for staff. So, when empty course with a hinged front harvesting equipment, when empty during when removing the front equipment and when driving with a full grain tank of an axle mechanism perceive and transmit on the car sharply distinguished between a load.

When harvesting crop on slopes inevitable changes of motion compared with the cleaning on essentially flat areas, since the left and right suspension mechanisms machines have different load.

In contrast, when working with rigidly mounted on the harvesting machine equipment front hinge spring movement driving mechanism should be minimized or completely blocked.

These problems in self-propelled who's from the prior art and the above-mentioned devices.

Summary of the invention Accordingly, a problem to which the invention is directed, is the creation of a device for automatic change to the selected adjustment allows electronic control of the machine to produce the control and regulation of the working cylinders of different working equipment front hydraulics and structural components of the machine depending on the constantly changing different from other conditions of loading and operation.

In accordance with the invention the solution of this problem is provided in the device for control and regulation of hydraulic working cylinders of the front working equipment and components in the working machine, preferably a self-propelled harvesting machines, in which the pressure piston cavity through Bolotnikova valves connected to the Central hydraulic system of the working unit and via a built-in shutoff valve connected in parallel connection to charge the hydraulic accumulator, and spool valves and shutoff valve is arranged to control of the control system associated with the reference set value, and means are provided, which is used for pressure, automatically provide hydraulic communication with the discharge or drain line of the hydraulic system. According to the invention the working rolls are made in the form of working cylinders double-acting one-way piston rod, rod pressure cavity which, by means of a switching valve selectively connected with the piston of the pressure cavities with accumulators or with the drain line of the Central hydraulic system and through the spool valves are connected to the Central hydraulic system, and one of the working cylinders is equipped with a sensitive element travel sensor, which is connected with the electronic control system of the harvesting machine and is designed to control and perception of the position of the working piston.

According to the first features of the invention, the working rolls are made in the form of hydraulic working cylinders double-acting one-way piston rod, and the pressure chambers of cylinders can be connected in various ways through Bolotnikova valves and with these Bolotnikova valves are connected to the Central hydraulic system of the harvesting machine. Further, the hydraulic working cylinders, directly is>/p>Using Bolotnikova valves hydraulic working cylinders double-acting switch so that the piston pressure chamber which is designed for the perception and transmission of best-effort from the masses, so in this case, the surface of the piston acts as a working surface, and the rod cavity from the side of the rod piston surface is emptied into the tank for the working fluid, is connected with the rod cavity. Rod as the piston acts as a working surface only for the perception and transmission of relatively small mass effort.

Due to such execution during operation of the harvesting machine with a relatively low loads, for example when the empty movement is removed from the equipment front hinge, working rod of the piston. When operating with higher loads, for example in the process of cleaning with a hinged front harvesting equipment, to adjust engine working piston surface hydraulic working cylinders double-acting. In this case, the rod pressure cavity connected to Baku Central hydraulic system. The ratio of the areas of the piston surface is adowanie without it. By switching at lower loads on the rod pressure cavity and at higher loads on the piston of the pressure cavity of the working pressure in both modes of operation is maintained at approximately the same level, which allows to optimize the operating characteristics of pumps and valves.

According to paragraph 2 of the claims rod pressure cavity of the hydraulic cylinder double-acting can be directly connected to the additional accumulators. With these batteries, for example, after having made the adjustment running gear and rod pressure cavity is disconnected from the Central hydraulic system, aligned to the difference of volumes that are created when the movements of the pistons due to oscillations and shocks transmitted from the engine during operation. The pressure in the accumulators simulates an artificial load on the axle.

Through the proposed solution can be implemented with separate control and regulation of hydraulic working cylinders provided for the driving mechanism as installation and damping cylinders, so that compy machine.

Actuators Bolotnikova, diverter and shutoff valves can be connected to an electronic control system of the harvesting machine, and to the input of the control system is connected strategic preselector (pre-selection) to select the expected load and position sensing element of the sensor of the stroke. The sensitive elements of sensors stroke associated, for example, hydraulic cylinders installation and damping of the left and right suspension mechanisms and serve to control the position of the working piston. Through the comparison of set and actual values in the electronic control system of the machine is comparatively simple, can be carried out by the control and regulation of the driving mechanisms introduced in the strategic preselector specified values.

In accordance with pre-defined values managed through a Central machine control spool valves in the working cylinders and accumulators served working pressure up until the perceived sensitive element of the sensor actual value reaches the preset value. This set Velich is lednikoviy valve in closed position and cuts off the discharge cavity hydraulic working cylinders and accumulators from the Central hydraulic system of the harvesting machine, the accumulators remain connected with the pressure cavities of working cylinders. During the transport movement or process of cleaning the pistons of the cylinders can be elastically displaced in the direction of extending and retracting, and with the resulting difference of the volumes are aligned accumulators. Working pressure in the Executive and damping cylinders corresponds to a value which is similar to the current load on the axis.

In another preferred embodiment, the Executive and the damper cylinders can be equipped with additional accumulators, pre-charged pressure of different sizes. The specified path is provided the opportunity to solve the problem of the pressure difference, for example, between the empty swing with a detached harvesting equipment front hinge and hung harvesting equipment front hinge and full grain tank.

A short list of drawings Hereinafter the invention will be described in detail, for example, with reference to the drawings, in which: Fig. 1 depicts in schematic form the front of the combine harvester with adjustable through the working cylinder of the front harvesting equipment and a forward stroke of the m pickup front or equipment for harvesting corn, Fig. 3 is a first exemplary embodiment of the invention for adjustment and control of the hydraulic work cylinder, depending on the load mode cleaning unit, Fig. 4 represents the device according to the invention in accordance with Fig.3 in the application of hydraulic working cylinders double-acting one-way piston rods, Fig. 5 represents another embodiment of Fig.3 and 4, in which the rod end of the hydraulic working cylinder connected to another hydraulic accumulator.

Information confirming the possibility of carrying out the invention
In Fig.1 schematically shows the front portion of the combine harvester 1 with a grain tank 12 and the discharge screw 13 of the grain tank. The harvester has a front wheel suspension mechanism with spring damper suspension and front cleaning equipment 2, which schematically presents only the cutting apparatus 3, the feed screw 4 with pick-up and inclined conveyor 5 for feeding the harvested material in the sweeper. Front cleaning equipment 2 in a known manner is installed on the combine harvester 1 with the lifting hydraulic cylinders (not shown) and connected with it the possibility is, the which the cutting apparatus 3 in the process glides over the surface of the field with the least possible clearance and rises when hitting an obstacle, in addition to the lifting hydraulic cylinders attach cleaning equipment 2 to the processor 1 also serves as a hydraulic working cylinder 6. The piston rod of a hydraulic working cylinder 6 is attached to the bracket 27 on the front cleaning equipment 2 and using the mounting element 7 is rigidly connected to the harvester 1.

Wheel axle 9 of the front wheels 26 of the driving mechanism installed in the rotary lever 8, which is connected to the frame of the machine can be rotated around the pivot point 10. Sector rotation of the rotary lever 8 is limited by limit stops, and within this sector the support for him is a hydraulic working cylinder 11, which performs the function of the Executive and the damping cylinder and pivotally connected to the pivoting arm 8 and combine. Using a hydraulic working cylinder 11 driving mechanism is configured depending on the conditions of loading and operation, and are damped oscillatory movement during operation and transport movement. Hydraulic working cylinder 11, as is written next with reference to Fig.3-5.

In Fig.2 schematically shows the front part of the self-propelled field chopper 14 with a front harvesting equipment 15, which consists of the reel 16, the feed rollers 17 and podpisuvaus rollers 18. Depending on the harvested material of the field chopper 14 may also be equipped with a front harvesting equipment 29 for corn harvesting. Collected by the pick-up material is sent to the feed rollers 17 and podpisovanie rollers 18 to the cutter drum 19, which grinds remove material when interacting with protorazuma plate 20. The shredded material is further processed crushing rollers 21 and using thrower 22 is discharged through the discharge device 28.

To install and maintain operating positions cleaning equipment 9, 15 is a hydraulic working cylinder 23. The piston rod of a hydraulic working cylinder 23 is attached to the bracket 24 on the front cleaning equipment 15, 29 and by means of a mounting element 25 is rigidly connected to the frame of the field chopper 14. As will be described later with reference to Fig.4 and 5, the hydraulic slave cylinder included in the scheme, the Central hydraulic system of the field chopper 14 and can be managed electra, through which can be regulated driving mechanisms in accordance with the degree of load device running gears to different operating conditions, according to a preferred variant implementation are hydraulic working cylinders single acting, which is connected to the Central hydraulic system 40 of the harvesting machine by Bolotnikova valves 36, 37.

Parallel to the cylinders 11 to the system connected accumulators 34, 35 through the control valve 43. The accumulators 34, 35 serve to equalize the difference of volumes that are created by movements of the working piston 49 when the damping of shocks and oscillations during operation of the machine, and running gears. This function is performed by the accumulator after running through the working cylinder 11 is adjusted in accordance with the expected load, and the connection of the pressure piston cavity 44 with a Central hydraulic system 40 is cut off with the help of an electronic system 30 controls. Actuators Bolotnikova valves 36, 37 and shutoff valve 43 associated with the system 30 control of the harvesting machine, and to the input of the system 30 upravlenchesko cylinder 11 depending on the expected load and position sensing element 33 of the sensor of the stroke. Sensitive elements 33 of the stroke sensors associated with the working cylinders 11 and perceive the situation of workers of the piston 49. The signal on deviations from the preset value, which corresponds approximately to the average position of the working piston 49, entered into the electronic system 30 control and trigger controls Bolotnikova valves 36, 37 so that by changing the operating pressure in the piston pressure cavities 44 to provide retraction or extension of the working piston 49. At this operating pressure corresponds to a value which is similar to the load on the axis.

When driving on slopes the slope of the machine can be adjusted within narrow limits by setting the right and left suspension mechanisms at different heights with the help of the working cylinders 11.

When setting mode "Progressirovanie and unloaded machine system 30 control actuates spool valves 36, 37 and shutoff valve 43 and connects the piston of the pressure cavity 44 of working cylinders 11 and accumulators 34, 35 with a Central hydraulic system 40 of the harvesting machine. Working pistons 49 are pulled up until the sensing element 33 of the travel sensor is not on the mentioned, this position is approximately half of the stroke of the working piston 49. After that, the system 30 control disables spool valves 36, 37 and shutoff valve 43 from the Central hydraulic system 40. During subsequent operation of the harvesting machine working pistons 49 working cylinders 11 can be drawn and be nominated by type dampers, and these differential volume in the pressure piston cavities 44 are aligned accumulators 34, 35.

When hanging and lifting the front cleaning equipment 2 increasing the axle load and the pressure in the pressure piston cavity 44. Working piston 49 moves and displaces the working fluid in the accumulators 34, 35. The system 30 control takes away from the sensitive element of the sensor 33 of the stroke of the deviation from the target value, and switches the spool valves 36, 37, whereupon the pressure cavity 44 are connected to a Central hydraulic system 40. In the pressure cavity 44 again served the working fluid under pressure and working pistons 49 are pulled up until sensitive elements 33 of the sensors will not signal a according to the position of the working piston 49 pre-specified value. After that, gold is connected with the accumulator 34, 35, to perceive and to damp the swinging and shocks during operation. The same procedure is carried out when the workflow process is gradually filled the grain bin 12 and the axle load is constantly increasing.

When emptying the grain tank 12, the weight of the machine is reduced, the pressure in the pressure cavity 44 falls and working pistons moving, and the lack of volume of the working fluid is filled accumulators 34, 35. The deviation of the working piston from the predetermined position again perceived sensitive elements 33 of the sensors and transmitted as signals to the control system 30. The control system switches the spool valves 36, 37 so that the pressure of the working fluid in the pressure cavity 44 of the working cylinder 11 is reduced and the working pistons are pulled up until sensitive elements 33 of the sensors will not give a signal on reaching a specified value.

This process is repeated, for example, when removing the front cleaning equipment and reducing the load on the axis of the harvesting machine.

In accordance with another preferred embodiment (Fig.4) operating cylinders 6, 11 and 23 are of the hydraulic cylinder d is indeed a process through rod pressure cavity 45, at high loads, requiring a higher operating pressure, through the pressure piston cavity 44 of working cylinders double-acting. The ratio of the squares of the rod and piston surfaces corresponds to the harvesting machine according to the load mode, i.e. depending on whether it is working with the front harvesting equipment 2, 15, 29 or without him. At high loads, shocks to the piston surface, and the operation of the machine without cleaning equipment front hinge effect on the rod side of the pistons. Diagram of the device shown in Fig.4.

In accordance with Fig.4 rod pressure cavity 45 is selectively connected through the controlled switching valves 47, 48 with the piston pressure cavities 44, with accumulators 34 and 35 and/or the drain line of the Central hydraulic system 40, and through the spool valves 36, 37 with a Central hydraulic system 40.

Another variant of the circuit shown in Fig.5. As shown in Fig.5, additional accumulators 41, 42 is connected directly to the rod pressure cavities 45 and connected through operated spool valves 38, 39 with a Central hydraulic system is E. the pressure in the accumulators 41, 42 organized on the basis of the load increases, then the pressure in the accumulators 41, 42 is set in accordance with the actual load.

Thus, the accumulators can adapt to different load conditions, requiring different pressures in the accumulators, and the pistons 49 working cylinders 6, 11, 23 can be installed in the loaded intermediate position and maintained in that middle position.

Under operating conditions, when the working piston 49 should work without damping, for example when working with fixed harvesting equipment front hydraulics, accumulators 34, 35 off with shutoff valve 43. Installation running gear and front cleaning equipment 2, 15, 29 is, as described above, by changing the position of the working piston 49 working cylinders 6, 11 and 23 and its position is controlled by the electronic control system 30 in accordance with the set value input into the strategic preselector 31.

Automatic regulation of the driving mechanism based on the axle load and operational conditions can be completely disabled for the implementation of manual control. In the SMI should be handled in a special way.


Claims

1. Device for the control and regulation of hydraulic working cylinders of the front working equipment and components in the working machine, preferably a self-propelled harvesting machines, in which the pressure piston cavity through Bolotnikova valves connected to the Central hydraulic system of the working unit and via a built-in shutoff valve connected in parallel connection to charge the hydraulic accumulator, and spool valves and shutoff valve is arranged to control of the control system associated with the reference set value, and means are provided which, when the pressure changes, representing an overload or drop a pre-specified value of the working pressure, automatically provide hydraulic communication with the discharge or drain line of the hydraulic system, characterized in that the working cylinder (6, 11, 23) made in the form of working cylinders double-acting one-way piston rod, rod pressure cavity which, by means of a switching valve selectively connected with the piston of the pressure cavities with hydroaccumulators hydraulic system, and the slave cylinder (11) is equipped with a sensor element travel sensor, which is connected with the electronic control system of the harvesting machine and is designed to control and perception of the position of the working piston.

2. The device under item 1, characterized in that the rod of the pressure cavity of the working cylinders are directly connected in parallel connection with the additional accumulators (41, 42) via the intermediate spool valves (38, 39) connected to the Central hydraulic system of the harvesting machine, and through the spool valves (36, 37) connected with the piston of the pressure cavities and accumulators (34, 35).

3. The device under item 1, characterized in that the actuators Bolotnikova valves, shutoff valves and switching valves are connected with the electronic control system of the harvesting machine, and to the input of an electronic control system connected device pre-selection (preselector) to set the preset value of the working pressure in the pressure cavity of working cylinders.

 

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The invention relates to a self-propelled harvesting machine, in particular a combine harvester is installed on the front side of the working body, such as the reaping part, and the working body contains the upper receiving recess for supporting elements attached to the ends of the piston rods and the associated cylinders are connected with the harvesting machine

FIELD: agricultural engineering; grain harvesting.

SUBSTANCE: proposed header member has frame forming bath together with rear wall, two side walls and bottom used as table for cutting. Cutting cross-member is installed on frame from side of bath inlet. Places for connecting stem dividers and side cutters are located in side walls at end zone of cutting cross-member. Reel is installed over cutting cross-member for displacement by means of adjusting drives. Bottom of frame is divided in cross direction and it consists of rear parts fixed on frame and front part installed for movement which provides coordination of length of table for cutting and conditions of harvesting.

EFFECT: enlarged operating capabilities.

9 cl, 7 dwg

FIELD: agriculture.

SUBSTANCE: invention relates to agricultural engineering and can be used in the machine for harvesting agricultural crops. The front working unit of the self-propelled harvesting farming machine contains a working device and reaping table with two driving sections of the cutterbar. Each section is driven by means of one driving transmission of the cutterbar. The cutterbar driving transmissions are united by means of at least one working device of the front working unit. The driving transmission contains a transmission gear transmitting rotation between concurrent axes. The transmission gear includes the end of the drive shaft and the parallel-shaft reducer seated tightly on the mentioned end of the drive shaft.

EFFECT: structure of the front working unit ensures mutually agreed movements of the cutterbar sections.

8 cl, 1 dwg

FIELD: agriculture.

SUBSTANCE: group of inventions concerns agriculture engineering and can be applied in self-propelled combine harvesters. Combine includes movable cabin of driver and suspended modular working device. Driver's cabin is arranged with the possibility of displacement for working motion of harvesting into working position in close proximity to suspension device and into non-working position at the distance from suspension device for road traffic. Working module of suspended working device comprises reaping apparatus and thresher arranged behind.

EFFECT: provides for the possibility for the driver of combine harvester to perform efficient working and traffic motion.

20 cl, 2 dwg

FIELD: agriculture.

SUBSTANCE: group of inventions refers to agricultural harvesting machines with cutting platform. Harvesting machine includes cutting platform with multiple sections, which is connected to housing of feed apron. Each section includes leading edge. At least one of sections of platform includes knife beam assembly and endless belt with its guides. Knife beam assembly has the possibility of restricted upward and downward movement. Multiple guides of belt are installed partially above endless belt near leading edge and provided with possibility of being moved relative to each other.

EFFECT: inventions provide good contour following of soil during operation.

31 cl, 7 dwg

FIELD: agriculture.

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EFFECT: simplified turn of the hinged harvesting device from working position to transport position.

18 cl, 2 dwg

FIELD: agriculture.

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EFFECT: group of inventions makes it possible to bend a cutting table on a localised section without interference into operation of a rotary reel above a cutting table.

29 cl, 6 dwg

FIELD: agriculture.

SUBSTANCE: header of combine or harvester comprises a frame, which longitudinal dimension is transverse to the direction of the combine or harvesting machine motion. Two moving tapes are located on the frame for receiving cut vegetation from the cutting device and moving the vegetation from the outer part of the header to its interior. Each tape has a front edge oriented in the direction of the header or harvester motion, and the rear edge, oriented backwards relative to the direction of motion. Each tape has an inner end, separated from the inner end of another tape to form an opening between them. This opening takes from tapes the vegetation transported longitudinally to the tapes in the inner direction. The header contains a screw placed with the ability to supply the vegetation from the opening into an inclined chamber located behind the opening. The screw has a cylinder on the axis and two end cones. The axis of the screw is located in front of the rear edge of the tape. The fixed platform over the opening is made relief to supply the vegetation into the inclined chamber.

EFFECT: creation of the header with an improved supply trajectory of vegetation into the inclined chamber, which increases the efficiency of supply of vegetation and provides more smooth transition from the traverse feed to the inclined chamber.

30 cl, 12 dwg

FIELD: agriculture.

SUBSTANCE: reaper of combine or harvester comprises a central section with a window of the feeder housing for directing the cut vegetation from the center section to the feeder housing, when the reaper is mounted on the feeder housing. At least one side section of the reaper is attached to the central section through the hinge joint of the frame. Band conveyor consisting of a frame and a band moving around the frame, passes from the side section to the center section and contains a hinge joint of band conveyor. The cutting device comprising a bending part is located on the front side of the header for cutting vegetation. The hinge joint of the frame, the hinge joint of the belt conveyor and the bending part are located on one axis parallel to the direction of movement of the combine or harvester. Side section is adapted to raise and lower relative to the center section by rotation around this axis.

EFFECT: creation of a simple and fast-acting device for converting articulated reaper into rigid and vice versa.

16 cl, 13 dwg

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