63 results about "Forage harvester" patented technology

The present invention relates to a self-propelled forage harvester (1) comprising a height-adjustable header (4) for receiving crop (2), working units (20) for processing the received crop (2), an unloading device (15) for discharging the processed crop (2), a camera system (16) for capturing images (41) of a crop flow (21) passing through the forage harvester (1), an image evaluation device (27) for evaluating the images (41), and a driver assistance system (17) for controlling the header (4), the working units (20), and the unloading device (15), wherein the driver assistance system (17) has a memory (40) for storing data and a computing device (39) for processing the data stored in the memory (40), wherein the image evaluation device (27) together with the driver assistance system (17),The front attachment (4) and the working units (20) form an automatic setting system, in that the image evaluation device (27) is configured to continuously analyze the images (41) of the crop flow (21) for the proportion of, in particular inorganic, impurities contained in the crop flow (21) by means of a machine learning algorithm and to transmit a derived degree of contamination (DC) to the driver assistance system (17), which autonomously and continuously adapts a setting of the front attachment (4) and / or at least one of the working units (20) depending on the degree of contamination (DC).

An agricultural work machine and a method for operating an agricultural work machine. The agricultural work machine, which may comprise a combine harvester or forage harvester, may include a visualization device configured to display image data and process data, a monitoring device with a camera system for detecting fields of view in the surroundings of the agricultural work machine, a cleaning system to clean the camera system, and a data processing unit. The data processing unit is configured to generate context-relevant process data of the agricultural work machine and image data based on the detected fields of view. The cameras of the camera system may be attached to at least one support structure of the agricultural work machine and with fixed spatial assignment to one another.

Forage harvester (10) with a harvesting attachment (20) for harvesting maize or other stem-like plants having detachable fruit heads, wherein: The harvesting head (20) comprises a supporting frame (60) extending over the width of the harvesting head (20) and across the width of which are devices for harvesting plants in the form of mowing and intake units (56), which are equipped with lower cutting discs for cutting the stems from the stumps remaining in the ground and above them conveying discs with recesses distributed around their edge for receiving the stems of the plants, and above the mowing and intake units (56) are means for separating fruit heads of the plants in the form of picking units (54), The fruit bunches separated by means of the picking units (54) can be conveyed together by an upper transverse conveyor (48) and fed to the rear by a conveyor (44) into a first intake channel of the forage harvester (10) which is laterally offset from the longitudinal center plane of the harvesting head (20), while the remaining plant parts can be conveyed together by a lower transverse conveyor (50) and fed to the rear into a second intake channel of the forage harvester (10) adjacent to the longitudinal center plane of the harvesting head (20), the forage harvester (10) comprises a chopping drum (22) with knives (62, 64) distributed around its circumference, into which the fruit heads can be fed through the first intake channel in a first section (70) of the chopping drum (22) and separately the remaining plant parts through the second intake channel in a second section (68) of the chopping drum (22), wherein the second section (68) is axially offset from the first section (70) and rigidly connected to the first section (70), the circumferentially successive knives (62) of the chopping drum (22) in the first section (70) have a smaller distance between them than the circumferentially successive knives (64) in the second section (68) and / or the conveying speed in the first feed channel is greater than the conveying speed in the second feed channel, only the first section (70) is assigned a downstream post-crushing arrangement with two cooperating rollers (28, 28') which serves to break up the grains of the fruit heads for better digestibility, and Downstream of the chopping drum (22) is a discharge device with a discharge conveyor (24) for accelerating the chopped fruit heads entering from the secondary chopping device and the chopped remaining plant parts entering from the second section (68) and a discharge spout (26) through which both the chopped fruit heads and the chopped remaining plant parts can be transferred to a transport vehicle.

The invention relates to an agricultural machine (1), preferably a combine harvester or forage harvester, with a visualization device (3) designed to display image data and process data. The machine (1) has a monitoring device (10) with a camera system (11, 12, 13, 14, 15) for capturing fields of view (21, 22, 23, 24, 25) in the vicinity of the machine (1), a cleaning system (18) for cleaning the camera system (11, 12, 13, 14, 15) and a data processing unit (20), wherein the data processing unit (20) is configured to generate context-relevant process data of the machine (1) and image data, each based on the captured fields of view (21, 22, 23, 24, 25), and wherein cameras (11.1, 11.2, 11.3) of the camera system (11, 12, 13, 14, 15) are mounted on at least one support structure (5) of the machine (1) and with a fixed spatial orientation. The arrangement is intended to be attached to each other.The invention further relates to a method for operating.

The present invention relates to a self-propelled forage harvester (1) comprising a drive motor (9) which drives a cutter drum (6a) and a post-acceleration device (8) via a common belt drive by means of a distribution gearbox (11), wherein the belt drive has a drive belt (14) which drives, via an output pulley (12) arranged on a drive shaft (11a) of the distribution gearbox (11), a drive pulley (15) associated with the cutter drum (6a) and a drive pulley (16) associated with the post-acceleration device (8), wherein a hydraulically actuated belt tensioning device (17) is provided for applying a first pretension force (VK1) to the drive belt (14), wherein a control device (22) of the forage harvester (1) is provided which is configured for adjusting the first pretension force (VK1).wherein at least one sensor unit is provided for detecting at least one operating state of the belt drive in chopping operation, wherein the control device (22) is configured to automatically increase the first preload force (VK1) to a second preload force (VK2) for an adjustable defined period of time by controlling a valve arrangement (23), depending on the at least one detected operating state.

The harvester includes a cutter drum for cutting up crops harvested from the ground. Inside the harvester, a stream of cut particles is propelled along a discharge path, including a wear plate facing the cutter drum, a concave, an accelerator for further driving the particle stream upward through a tower duct, and a discharge spout. The harvester including a nozzle assembly for discharging water (or an equivalent liquid) in the downstream direction of the discharge path to thereby mitigate plug formation. The nozzle assembly is mounted on the concave, in a position that enables impingement of the discharged liquid on the concave at a location that is upstream of the impact zone of the particle stream, when the header is in a harvesting position and the cutter drum is rotating within a standard operational speed range.

Chopping drum (1) for a forage harvester, comprising: a circular cylindrical drum body (10) with a drum shell (11) which defines an outer diameter of the drum body (10) and has an axial length that is limited by first and second axial ends (11.1, 11.2) pointing in opposite directions to each other, two pairs of knife carriers (20, 20.1, 20.2; 20.3, 20.4), wherein each knife carrier (20) is formed with a plurality of knife carrier segments, each having an outer circumferential surface with a predetermined number of knife receptacles (22), and is detachably attached to the outer diameter of the drum body (10) in an annular arrangement of its knife carrier segments, wherein a first pair of knife carriers (20.1, 20.2) is arranged axially offset from each other on a first axial side of the drum shell (11) and a second pair of knife carriers (20.3, 20.4) is arranged axially offset from each other on a second axial side of the drum shell (11), characterized in that an intermediate knife carrier (25, 25.1, 25.2) designed like these knife carriers (20) is provided axially of the drum shell (11) both between the first pair of knife carriers (20.1, 20.2) and between the second pair of knife carriers (20.3, 20.4) and is detachably attached to the outer diameter of the drum body (10) and is equipped with a plurality of strip-shaped cutting knives (90) which are arranged circumferentially around the drum shell (11) and are each attached to two knife receptacles (22) arranged axially of the drum shell (11) at a distance from each other, one of which is arranged on one of the intermediate knife carriers (25.1, 25.2), wherein the cutting knives (90) comprise at least one short knife (90.2) which has a length such that the at least one short knife (90.2) extends from one of the knife carriers (20) to an intermediate knife carrier (25) directly adjacent to the respective knife carrier (20) axially of the drum shell (11) and is attached to a knife receptacle (22) of the respective knife carrier (20) and of the respective intermediate knife carrier (25), wherein all cutting knives (90) of the chopping drum (1) are designed like the at least one short knife (90.2), wherein half of the cutting knives (90) are arranged circumferentially around the drum shell (11) on the side of the first pair of knife carriers (20.1, 20.2) and the other half of the cutting knives (90) are arranged circumferentially around the drum shell (11) on the side of the second pair of knife carriers (20.3, 20.4), wherein in each half of cutting knives (90) a first group of cutting knives (90) is attached to one knife carrier (20.1, 20.4) and the intermediate knife carrier (25) of the respective pair of knife carriers (20.1, 20.2; 20.3, 20.4) which is axially adjacent to the drum shell (11), and a second group of cutting knives (90) is arranged on the other knife carrier (20.2, 20.3) and the intermediate knife carrier (25) of the respective pair of knife carriers (20.1, 20.2; 20.3, 20.4) which is axially adjacent to the drum shell (11).

Control arrangement for controlling a closing device (40) arranged in particular on the underside of a channel (64) downstream of a chopping drum (26) of a forage harvester (10), with an electronic control unit (70) which is connected to an externally operated actuator (42) configured to move the closing device (40) between a closed and an open position and to an operator interface (98) which allows manual input of a command to open the closing device (40), wherein the control unit (70) is configured to automatically command the actuator (42) to close the closing device (40) upon detection of a predetermined operating condition of the forage harvester (10), characterized in thatthat the predetermined operating condition corresponds to a sharpening process of the shredding knives of the shredding drum (26) initiated manually via the operator interface (98) or automatically by a device for detecting the sharpness of the shredding knives of the shredding drum (26) and / or to the start of an adjustment procedure of a counter blade (102) of the shredding drum (26) initiated automatically or manually, in order to prevent sparks from escaping through the open locking device (40) during the sharpening of the shredding knives and / or to prevent the risk of an operator or third party touching the shredding drum (26) while it is rotating during the adjustment of the counter blade.

The application relates to a profiling detection device, a profiling adjustment system and a forage harvester. The profiling detection device comprises a mounting piece and a profiling detection assembly. The mounting piece is used for matching with a header. The profiling detection assembly comprises a profiling rod, a connecting piece and at least two profiling wheels. One end of the profiling rod is slidably connected with the mounting piece, and the other end of the profiling rod, which is away from the mounting piece, is rotationally connected with the connecting piece through a rotating shaft. All the profiling wheels are rotationally matched with one side of the connecting piece, which is away from the profiling rod, and all the profiling wheels are arranged side by side along the advancing direction of the forage harvester. All the profiling wheels can drive the connecting piece to rotate relative to the profiling rod along with the change of the ground slope, and all the profiling wheels can drive the connecting piece to move along the gravity direction along with the change of the ground height, so that the profiling rod slides along the gravity direction relative to the mounting piece. The application can obtain the change of the terrain of the forage harvester in the advancing process in real time, so that the position relationship between the header and the ground can be correspondingly adjusted, and the uniform stubble height of the ground vegetation can be realized.

The application discloses a kind of alfalfa harvester inclination control method and device, including pump body support, upper connecting lever, connecting rod frame, inclination adjustment solenoid valve, header hinged frame, controller, header, header support frame, inclination adjustment hydraulic cylinder, lower connecting lever, profile gear, angle sensor and straight gear, the upper connecting lever is hinged with support by rivet, the connecting rod frame is hinged with upper connecting lever by rivet, the inclination adjustment solenoid valve is connected to the front end of the connecting rod frame by bolt, the header hinged frame is welded to the front end of the connecting rod frame, and the header support frame is hinged with header hinged frame by rivet.The application can realize real-time adjustment of header inclination, can compensate header inclination, ensure stubble height uniformity, simple structure, low cost, without increasing complex measuring equipment, only increase an angle sensor, combined with the controller of harvesting machinery itself can realize header inclination adjustment, algorithm model is accurate, simple, reliable.

A self-propelled agricultural harvester. A harvester, such as a forage harvester, may comprise a machine frame, a transfer device mounted on the machine frame for transferring processed harvested material to a transport vehicle, and a hydraulic actuator connected to the transfer device. Using the hydraulic actuator, the transfer device may be rotated about a horizontal axis of rotation relative to the machine frame, and thereby a position of an end outlet of the transfer device may be changed. To reduce the vibration of the transfer device, a control and regulating device regulates vibration behavior of the transfer device to dampen vibrations of the transfer device. The control and regulating device determines a manipulated variable for controlling a proportional valve, which is operatively connected to the hydraulic actuator and is designed to adjust a volume flow of hydraulic fluid to the hydraulic actuator, for damping the vibrations of the transfer device.

The utility model belongs to the technical field of forage grass collection, and discloses a forage grass harvester. Comprising a harvester body, a driving wheel is rotatably connected to the bottom of the harvester body, a frame opening is fixedly connected to one side of the harvester body, an electric cutting head is fixedly connected to the bottom of the frame opening, and a conveying roller is rotatably connected to the bottom of the inner wall of the harvester body. Air flow can be heated into hot air by the heating frame after passing through the heating frame, the hot air is blown into the square groove, the two sets of sealing plates can be pushed downwards through the control assembly, and therefore the square groove is opened, the hot air flows downwards through the square groove, and when the harvested pasture makes contact with the hot air, the pasture can be dried through the hot air; therefore, the water content in the pasture is reduced, the nutrient content of the harvested pasture is further maintained, and the problem that the water content of the harvested pasture is high is solved.

In a harvester / header combination according to the invention, the header is a crop pick-up header (2) coupled to a forage harvester (1). The header comprises a frame (10) and a rotatable reel (13) configured to collect crops from the ground, a rotatable auger (20) provided with two oppositely wound helicoidal flights (26), and one or more windguard rolls (15). The auger is rotatable with respect to a pair of support arms (21) which are themselves pivotable relative to the frame, so that the pivoting movement of the arms results in lowering or raising the auger (20). According to the invention, the header comprises at least one set of actuators (18, 19) capable of actively raising the auger and the windguard roll(s) and the harvester / header combination comprises a control unit (46) configured to execute a sequence of steps for removing a foreign object from the header, after detection of the object and stoppage of the harvester's feed rolls (51). The removal sequence includes raising the auger while rotating the auger in the reverse direction, followed by lowering the auger while maintaining said reverse rotation.

The application discloses a kind of pasture harvesting device with stable conveying function related to the technical field of pasture processing, the device includes main body cylinder: including fixed cylinder body on main body cylinder, the surface of fixed cylinder body is fixedly installed with the installation rod being connected with outside mobile car, fixed cylinder body is opened with the arc-shaped gap for pasture discharging;Compression mechanism includes the rotary cylinder being rotatably connected with fixed cylinder body, the inside of rotary cylinder is opened with multiple U-shaped grooves for storing pasture, and the inside of rotary cylinder is slidably connected with compression cylinder through the U-shaped groove being opened;Chute mechanism is used to extrude the pasture in U-shaped groove by compression cylinder;Thrust mechanism is used to push the pasture in U-shaped groove and discharge;By the action of chute mechanism, compression cylinder is away from the central axis of rotary cylinder, and then the U-shaped groove space of rotary cylinder is reduced, so that automatic extrusion pasture is achieved, which is automatically compressed in the process of conveying, to reduce the volume of pasture, increase the purpose of one collection amount.

1. The name of the design product: green forage harvester (4QZ-2000). 2. The use of the design product: for harvesting forage. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The present invention relates to a harvesting header (10) for row-independent harvesting of maize with a forage harvester (80). The harvesting header (10) comprises at least three header segments (1, 2, 3, 4) including a first central header segment (1). The header segments (1, 2, 3, 4) each have a conveying element (18) that rotates during operation for conveying the maize plants in a segment conveying direction (SR1, SR2, SR3, SR4) towards the intake area (14). Furthermore, the harvesting header has a transfer device (20) for transferring the harvesting header (10) from a working position (I) to a transport position (VI). In the working position (I), the feeder segments (1, 2, 3, 4) connect to each other in a transverse direction (QR) such that their segment conveying directions (SR1, SR2, SR3, SR4) are parallel to a support plane (AE) and are aligned with the intake area (14).In the transport position (VI), at least one of the header segments (1, 2, 3, 4) is arranged such that the segment conveyance direction (SR1, SR2, SR3, SR4) of the header segment (1, 2, 3, 4) is angled relative to the ground plane (AE). According to the invention, the transfer device (20) has a configuration for transferring the harvesting header (10) such that the segment conveyance direction (SR1) of the first header segment (1) is angled relative to the ground plane (AE) in the transport position (VI) of the harvesting header (10).

The pasture harvester comprises a processing hopper, a first conveying belt is arranged at the bottom of the processing hopper, a bending plate is arranged at the front end of the processing hopper, a first motor is installed on the lower end face of one inclined face of the bending plate, the first motor is in transmission connection with a rotating block, a rotating rod is connected to the side face of the rotating block, and a cutting knife is arranged on the side edge of the rotating rod. A discharging opening is formed in the rear end of the treatment hopper, a second conveying belt is arranged below the discharging opening, an air heater is installed in the treatment hopper, an air outlet of the air heater faces the first conveying belt, walking wheels are installed at the bottom end of the treatment hopper, and a traction block is connected to the front end of the treatment hopper. A rotating block rotates to drive a rotating rod to rotate, then a cutting knife is driven to rotate to cut forage grass in front of a bending plate, a first conveying belt conveys the forage grass to a discharging opening, a second conveying belt operates to convey the forage grass to one side edge of a processing hopper to be stacked, and batch harvesting is conducted on the forage grass planted on a large scale; compared with manual pasture harvesting, pasture harvesting efficiency is improved.

Chopping unit (10) of a forage harvester, with a chopping drum (11) carrying chopping knives (15), with a counter-blade holder (17) carrying a counter-blade (16) for the chopping knives (15), wherein a top surface (20) of the counter-blade (16) facing away from the counter-blade holder (17) provides a cutting edge (21) of the counter-blade (16), characterized in that the top surface (20) of the counter-blade (16) is contoured such that the top surface (20) of the counter-blade (16) is inclined continuously towards the chopping drum (11) at least on one top surface section (26) facing the chopping drum (11) in the axial direction of the chopping drum (11) in the contact area with the chopping knives (15), wherein the top surface (20) of the counter-blade (16) is inclined at the chopping drum (11) the upper surface section (26) facing is contoured in such a way,that a first subsection (24) forming the cutting edge (21) runs parallel or approximately parallel to an underside (25) of the counter blade (16) facing the counter blade holder (17), and that a second subsection (23) adjoining this first subsection (24) is inclined towards the chopping drum (11).

Corn header (2) for a forage harvester (1) for harvesting stalk crop, comprising several harvesting and feeding units (10) which respectively include several harvesting and feeding elements (11) rotating about a vertical axis, driveable in rotation, for cutting the crop in a substantially horizontal direction, comprising feeding drums (12) arranged behind the harvesting and feeding units (10) viewed in the harvesting direction, capable of rotating about a vertical axis, as well as turning drums (14, 15), in the working position of the corn header, respectively a feeding drum (12) being arranged behind the two central harvesting and feeding units (10a) viewed in the harvesting direction, in the working position of the corn header (2), respectively a first turning drum (14) being arranged behind a receptacle, viewed in the harvesting direction,between each of the central harvesting and feeding units (10a) and a first lateral harvesting and feeding unit (10b) arranged laterally directly next to them, and the harvesting and feeding units (10) being pivotable relative to each other about axes (16) to transfer the corn spout (2) between the working position and a transport position, so that each of the first lateral harvesting and feeding units (10b) is pivotable jointly with one of the first turning drums (14) relative to the respective adjacent central harvesting and feeding unit (10), so that, in the transport position of the corn spout (2), a frustoconical wrap-around (14a) of the respective first turning drum (14) lies entirely within an permissible transport width of the corn spout (2) in the transport position of the corn spout (2). Figure for the abridged version: Fig 2,

Corn header (2) for a forage harvester (1) for harvesting stalk product, comprising several harvesting and feeding units (10) which have harvesting and feeding elements (11) rotating about a vertical or nearly vertical axis (22) for cutting product, in the working position of the corn header (2), viewed transversely to the direction of harvest, being arranged, laterally next to central harvesting and feeding units (10a), first lateral harvesting and feeding units (10b), laterally next to first lateral harvesting and feeding units (10b), second lateral harvesting and feeding units (10c) and, laterally next to second lateral harvesting and feeding units (10b), third lateral harvesting and feeding units (10c),the harvesting and feeding units (10) being pivotable relative to each other about horizontal or nearly horizontal pivot axes (16) for the transfer of the corn spout (2) between the working position and a transport position, such that each of the first lateral harvesting and feeding units (10b) is pivotable about a first pivot axis (16a) relative to the respective adjacent central harvesting and feeding unit (10), that each of the second lateral harvesting and feeding units (10c) is pivotable about a second pivot axis (16b) relative to the respective adjacent first lateral harvesting and feeding unit (10b), and that each of the third lateral harvesting and feeding units (10c) is pivotable about a third pivot axis (16c) relative to the second harvesting unit and respective adjacent lateral supply (10b),a pivot angle (α1) around the first pivot axes (16a) being 164° plus or minus 4°, a pivot angle (α2) around the second pivot axes (16b) being 180° plus or minus 4°, and a pivot angle (α3) around the third pivot axes (16c) being 184° plus or minus 4°. Figure for the abbreviation: Fig 6,

The application discloses a kind of pasture harvesting baling device, it is related to livestock equipment technical field, including vehicle body and from left to right sequentially set on vehicle body on harvesting mechanism, sorting mechanism and baling mechanism, sorting mechanism includes protective cover, sorting motor, clamping module, pasture conveyor belt, limit baffle and vibration module, protective cover is fixed on vehicle body, sorting motor is fixed on protective cover, sorting motor output end is connected with clamping module, clamping module two sides are symmetrically provided with pasture conveyor belt, and pasture conveyor belt is inclined arrangement, pasture conveyor belt lower side is provided with limit baffle, and pasture conveyor belt inboard is also provided with vibration module.The pasture harvesting baling device proposed in the application can automatically harvest and bale pasture, which helps to reduce labor intensity, and can separate long and short pasture before baling for separate baling, ensuring that the hay structure is compact and not easily loose.

The present invention relates to a self-propelled forage harvester (1) comprising a height-adjustable header (4) for receiving crop (2), working units (20) for processing the received crop (2), an unloading device (15) for discharging the processed crop (2), a camera system (16) for capturing images (41) of a crop flow (21) passing through the forage harvester (1), an image evaluation device (27) for evaluating the images (41), and a driver assistance system (17) for controlling the header (4), the working units (20), and the unloading device (15), wherein the driver assistance system (17) has a memory (40) for storing data and a computing device (39) for processing the data stored in the memory (40), wherein the image evaluation device (27) together with the driver assistance system (17),The front attachment (4) and the working units (20) form an automatic setting system, in that the image evaluation device (27) is configured to continuously analyze the images (41) of the crop flow (21) for the proportion of, in particular inorganic, impurities contained in the crop flow (21) by means of a machine learning algorithm and to transmit a derived degree of contamination (DC) to the driver assistance system (17), which autonomously and continuously adapts a setting of the front attachment (4) and / or at least one of the working units (20) depending on the degree of contamination (DC).

A self-propelled forage harvester. The self-propelled forage harvester includes a chopping device, a post-acceleration device, and a harvested material conveyor chute, which is arranged or positioned between the chopping device and the post-acceleration device. The harvested material conveyor chute includes an adjustable inner cross-section.

The present invention relates to a self-propelled forage harvester (1) with a conditioning unit (6) comprising a first roller (8) and a second roller (9), wherein one roller of the two rollers (8, 9) is movably mounted such that the distance between the rollers (8, 9) can be changed to adjust the gap width of the conditioning unit (6). The conditioning unit (6) further comprises an adjusting device (22) for adjusting the gap width, wherein the adjusting device (22) comprises a first hydraulic cylinder (23) and a second hydraulic cylinder (24). The self-propelled forage harvester (1) is characterized in that the adjusting device (22) comprises a controllable valve assembly (26) which is designed and configured to supply the two hydraulic cylinders (23, 24) independently of one another with hydraulic fluid provided by a hydraulic source (27).

A forage harvester (10) comprising a feed conveyor (22), a chopping unit (26) arranged downstream of the feed conveyor (22), an adjustable discharge spout (30) with an adjustable discharge flap (64), a foreign object detector (72, 108) for detecting a foreign object in the crop (76) taken up or to be taken up by the forage harvester (10), and a control unit (70) connected to the foreign object detector (72, 108) which is coupled to an actuator (58, 60, 62) for adjusting a crop-guiding element in order to prevent the detected foreign object from being overloaded onto a crop transport vehicle (56) in the event of a foreign object detection, wherein the actuator (58, 60, 62) is coupled to the discharge spout (30) and / or the discharge flap (64), and the foreign object detector (72, 108) is set up,to supply signals to the control unit (70) regarding the potential danger to the forage harvester (10) emanating from a detected foreign object, and the control unit is coupled to and operational with the feed conveyor (22), to stop the feed conveyor (22) in the event of detection of a foreign object that poses a danger to the forage harvester (10), and to adjust the discharge spout (30) and / or the discharge flap (64) in the event of detection of a foreign object that does not pose a danger to the forage harvester (10).

Herein is disclosed a rotor assembly (1) for a forage harvester (10), the rotor assembly (1) comprising a shaft (2) having a longitudinal axis and an outer surface (21), a plurality of flails (3) for cutting grass against a counter blade (4), and flail mounts (5) for fastening each flail (3) individually, in a removably manner, to the outer surface (21) of the shaft (2), the plurality of flails (3) are arranged in pairs (3'; 3'') so that the two flails (3) in each pair are mounted to the shaft (2) diametrically opposite of each other, and wherein each consecutive pair of flails (3) is circumferentially displaced relative to previous pair of flails (3) Furthermore, a forage harvester (10) comprising the rotor assembly (1), a forage wagon (15), and a forage harvester assembly (100) are also disclosed.

This utility model discloses a novel forage harvester blade protector, belonging to the technical field of blade protectors. It includes an upper pressure plate and a bottom support plate, with a gap between the upper pressure plate and the bottom support plate for the blade to pass horizontally. One end of the upper pressure plate has a mounting hole, and the other end has at least one forward extension. The end of the forward extension away from the mounting hole is pointed, and both sides of the forward extension near the mounting hole have horizontally arranged first serrated strips. One end of the bottom support plate has a fixing hole, and the other end of the bottom support plate has support members corresponding to the forward extensions. The distance between the support members and the fixing hole is less than the distance between the forward extensions and the mounting holes. This novel forage harvester blade protector with the above structure is simple in structure and low in manufacturing cost. It can achieve all-round protection for the cutter blade, while reducing the resistance when the cutter blade is pulled out, resulting in good cutting effect and thus improving cutting efficiency.

A structural strength analysis method for a small-sized three-degree-of-freedom forage harvesting header in a hilly area comprises the following steps: S01, establishing a pavement model and a geometric model of the whole small-sized forage harvesting header in three-dimensional modeling software; and S02, importing the road surface model and the header model into multi-body dynamic analysis software, constructing a dynamic simulation model of the header moving on the fluctuating road surface, simulating a three-dimensional dynamic adjustment working condition of the dynamic simulation model, and performing simulation solution to obtain dynamic load data of a key connection part. And S03, extracting a load value for statics strength analysis. S04, taking the extracted load value as a boundary condition, and importing the load value into finite element analysis software to carry out statics strength analysis and checking on a target key part of the header; and if the parts do not meet the requirements, returning to the step S01 to modify the header model parameters, and repeating the steps S02 to S04. The accuracy and reliability of structural design of the small header in the hilly area are remarkably improved, and the method belongs to the field of agricultural machinery computer-aided engineering.

The invention relates to a pick-up attachment for a harvesting machine, preferably for a forage harvester, particularly preferably for a self-propelled forage harvester, comprising a pickup rotor with pickup tools for picking up crop material from the ground, at least one guide element resting on the ground which guides the pickup rotor and directs it to the ground, a machine frame to which the pickup rotor and the at least one guide element are attached, and a drive for driving the pickup rotor.