692 results about "Threshing" patented technology

The invention belongs to the technical field of agricultural machinery, and particularly relates to a wheat harvesting and straw deep burying and returning all-in-one machine which comprises a harvesting and threshing part, a walking part, a smashing part, a feeding part and a deep soil turning part. Soil is scarified through the deep soil scarifying part, then the ground wheat straw is buried to the bottom of the scarified soil through the feeding part, deep burying and returning of the wheat straw are achieved, the deeply-buried straw is decomposed in deep soil, humus is more easily formed, the content of organic matter in the soil is increased, and the yield of the wheat straw is increased. Deep burying can promote the formation of a soil aggregate structure and enhance the permeability and water and fertilizer retention capability of deep soil, so that surface hardening possibly caused by conventional returning to the field is avoided; a series of working procedures of harvesting, threshing, smashing and deep burying are achieved through the walking component, and then the convenience and efficiency of straw returning to the field are improved.

The utility model provides a making device of fen-flavor golden sophora flower bud tea. The making device comprises a threshing assembly and an integrated furnace, an evaporation barrel, a gas conveying area and a liquid sealing area are arranged in the integrated furnace; the evaporation barrel is positioned in the gas conveying area; a supporting truss is connected to the upper portion of the threshing assembly, and a conveying rail is arranged below the supporting truss. The bottom of the threshing barrel is communicated with the evaporation barrel; a steam through hole is formed in the outer wall of the evaporation barrel; the gas conveying area is positioned above the liquid sealing area; the bottom of the stir-frying furnace is provided with a discharge port, and the liquid sealing area is sealed with the gas conveying area and the outer surface of the stir-frying furnace; according to the production line, the production process of the fen-flavor sophora flower bud tea is standardized, the time and the temperature between steps can be controlled, and an integrated sophora flower bud tea processing operation process which is standardized in yield, high in efficiency, high in automation speed and extremely high in controllability is formed; problems caused by manual operation can be solved, and the labor cost is reduced.

The invention discloses a self-adaptive regulation and control method applied to a combine harvester. The combine harvester comprises a movable chassis, and a seedling pulling and harvesting device, a material conveying channel, a threshing device and a cleaning device which are mounted on the movable chassis; the cleaning device comprises a vibrating screen and a vibrating screen driving mechanism; the plurality of vibrating screens are tightly arranged; the vibrating screen driving mechanism comprises a central driving shaft and a plurality of eccentric shafts; the eccentric shafts and the vibrating screens are equal in number and are respectively connected through connecting pieces one by one; two ends of the eccentric shaft are respectively connected with the central driving shaft through electric push rods; one end of the connecting piece is rotationally mounted relative to the eccentric shaft, and the other end is fixed on the vibrating screen; all the electric push rods are connected with a controller; the method comprises the steps that distribution information of materials falling on each vibrating screen is obtained, and the left-right distribution condition of the materials is obtained; on the basis of the left-right distribution condition, all the electric push rods are adjusted to operate so as to adjust the amplitude of all the vibrating screens.

The utility model discloses a self-propelled pepper harvester, and relates to the technical field of machine manufacturing. The fruit picking machine comprises a vehicle body, a cab, a cut-down assembly, an auger assembly, a conveying chain harrow, a primary fruit picking assembly and a secondary fruit picking assembly, the auger assembly is arranged at the front end of the vehicle body, the cut-down assembly is arranged at the top end of the auger assembly, the conveying chain harrow is arranged on the vehicle body, and the conveying chain harrow is arranged at the rear end of the auger assembly; according to the equipment, the spiral steel is arranged in the primary separation assembly and the secondary picking assembly to rotate for threshing, and the spiral steel also has a discharging and conveying function; by means of the design, the problem of pepper crushing is effectively solved, and the clean threshing process is achieved; the equipment performs longitudinal threshing (primary threshing) and transverse threshing (secondary threshing), and performs threshing work for two times on peppers, so that the threshing effect is remarkably improved, the crushing condition is reduced, the completeness of the peppers is kept, and the working efficiency is improved.

The utility model relates to the technical field of crop screening, in particular to a concave grid and a threshing roller, which comprise an arc-shaped frame, the arc-shaped frame comprises a first straight plate, a first arc-shaped plate, a second straight plate and a second arc-shaped plate which are sequentially connected end to end, and the concave grid further comprises a penetrating strip, a plurality of rotating holes are sequentially formed in the first arc-shaped plate and the second arc-shaped plate respectively along arc-shaped paths of the first arc-shaped plate and the second arc-shaped plate, the rotating holes in the first arc-shaped plate and the rotating holes in the second arc-shaped plate are arranged in a one-to-one correspondence mode and jointly install the penetrating strips, and the penetrating strips can rotate in the rotating holes. The concave plate sieve can reduce the breakage rate when materials are sieved.

The invention relates to the technical field of agricultural equipment, in particular to a corn ear and stalk collecting, packaging and film winding all-in-one machine which comprises a frame, a material collecting module and a recycling module are arranged on the frame, the material collecting module comprises a harvesting table, a cab and a grain storage box, and a stalk chopper is installed on the lower portion of the harvesting table; a stalk chopper is arranged on one side of the grain storage box, a stalk crusher connected with the stalk chopper is arranged on one side of the grain storage box, the recycling module comprises a stalk storage box and a packaging machine, a first conveying belt connected with the stalk storage box is arranged at the feeding end of the packaging machine, and a film winding device is arranged at the discharging end of the packaging machine. Compared with a traditional stalk and spike harvesting device, through modular design, stalk cutting, spike and grain separation, straw smashing and packaging and film winding integrated operation is achieved, device switching and manual intervention are reduced, and the straw mildewing risk caused by human errors is reduced.

The invention provides a cleaning device with an adjustable screening behavior suitable for densely-planted corn, and belongs to the field of corn harvesting machinery. Comprising an upper screen box, a shaking plate, a centrifugal fan, a crank connecting rod mechanism and a lower screen box, the centrifugal fan is fixedly connected with a harvester, the shaking plate is arranged above the centrifugal fan, one end of the shaking plate corresponds to a discharging port of a threshing device, the other end of the shaking plate is provided with the upper screen box, and the lower screen box is arranged below the upper screen box. The ends, close to the centrifugal fan, of the upper screen box and the lower screen box are connected through crank connecting rod mechanisms, the crank connecting rod mechanisms are symmetrically arranged on the two sides of the upper screen box and the two sides of the lower screen box, and a structural unit of the vibrating screen with the adjustable screen penetrating behavior is composed of an upper-section screen plate, a middle-section screen plate, a lower-section screen plate and an inclination-angle-adjustable screen plate. The throwing force of the front end area of the vibrating screen on mixture particles and the vertical speed of air flow on the screen are increased, the separation effect of impurities and grains is promoted, the grain penetrating through the screen is improved, and the low-loss and high-cleanliness purposes of corn grain cleaning are achieved.

The invention relates to the technical field of crop harvesting, and provides an ear picking plate gap detection and adjustment device and method and a harvester. The device comprises an angle sensor, a controller, a rack, a pull rod mechanism, an ear picking plate and a telescopic mechanism, the angle sensor is in communication connection with the controller, the angle sensor is fixedly connected to the rack, and a long-strip-shaped hole is formed in the rotating end of the angle sensor; one end of the pull rod mechanism is fixedly connected with the ear picking plate, and the other end of the pull rod mechanism is fixedly connected with a sliding piece which is slidably connected into the long-strip-shaped hole. The telescopic mechanism is fixedly connected to the rack, and the telescopic end of the telescopic mechanism is fixedly connected with the pull rod mechanism. According to the device, accurate detection of the gap between the ear picking plates can be realized, so that the gap between the ear picking plates can be conveniently and accurately adjusted to adapt to the current operation condition. The accurate gap between the ear picking plates can effectively reduce the conditions that grains fall off and ear heads are not picked completely, and excessive straw and other impurities are prevented from entering the threshing device.

The utility model provides a threshing cylinder clearance adjusting device and harvester, including concave plate, adjusting mechanism and control mechanism, adjusting mechanism is used for adjusting concave plate clearance, including adjusting lever and rocker arm, rocker arm one end is connected concave plate, adjusting lever rotates to drive rocker arm to adjust concave plate clearance; the control mechanism is connected with the adjusting rod and comprises a driving part for driving the adjusting rod to rotate and a gap value obtaining system for obtaining a gap value, the driving part comprises a connecting arm and an adjusting piece for driving the connecting arm to rotate, and the gap value obtaining system is connected with the adjusting mechanism and obtains the gap value of the lower concave plate; wherein the sensor is used for detecting and acquiring a first gap value of a concave plate gap and converting the first gap value into a first voltage value, and the controller is used for monitoring and judging the first gap value corresponding to the first voltage value. According to the threshing cylinder gap adjusting device and the harvester, operation is easy, the gap value of the lower concave plate can be monitored in real time, and the harvesting efficiency is improved.

The invention discloses a soybean low-crushing threshing multivariable collaborative optimization control method and system, and relates to the field of agricultural machinery automation control. The method comprises the following steps: acquiring grain harvesting and threshing related data at the current moment; based on grain harvesting and threshing related data, soybean low-crushing threshing multivariable cooperative control is carried out, and the rotating speed of a target roller and the opening degree of a concave grid are solved; and outputting a control instruction according to a solving result to realize online regulation and control of the rotating speed of the roller and the opening degree of the concave sieve. The intelligent level of the grain combine harvester can be effectively improved, high-quality and low-loss harvesting of grain harvesting is achieved, grain saving and loss reduction of grain harvesting are achieved, and agricultural economic benefits are effectively improved.

The invention relates to the technical field of grain loss monitoring, in particular to a wheat harvesting loss monitoring system and method, and the system comprises an unmanned aerial vehicle monitoring module, a multi-mode sensor array, a signal processing module, an intelligent control module and a man-machine interaction terminal. The unmanned aerial vehicle monitoring module is used for scanning a field parcel, identifying a lodging area and a high-density area and generating a loss risk thermodynamic diagram, the loss risk thermodynamic diagram is imported into a harvester navigation system, and the high-risk area is harvested preferentially; the multi-mode sensor array comprises a piezoelectric grain sensor and an image sensor; the piezoelectric type grain sensor is mounted at the tail part of the cleaning sieve, adopts a vibration isolation device (such as a rubber pad) to reduce mechanical vibration interference, and detects a grain impact signal through a piezoelectric element; the image sensor is arranged on a header and a threshing outlet and is used for identifying missed cutting of wheat ears and damaged grains based on a deep learning algorithm; the intelligent control module comprises a loss rate calculation unit and a parameter optimization unit; the precision and the real-time performance are improved.

The invention discloses a mechanism and data fusion driven wheat and corn harvesting and threshing grain damage rate evolution prediction method. The method comprises the following steps: 1, acquiring response data of wheat or corn grain damage rate along with time change under different threshing working conditions based on a bench test; 2, on the basis of a discrete element simulation analysis result, constructing a wheat and corn threshing grain damage rate physical model to obtain response data of the grain damage rate changing along with time under different threshing working conditions; 3, constructing a wheat corn harvesting and threshing grain damage rate prediction model training data set; 4, establishing a wheat corn harvesting and threshing grain damage rate evolution prediction network model driven by mechanism and data fusion; 5, a loss function of the prediction model is established and trained, and an optimal grain damage rate evolution prediction model is obtained and used for predicting the grain damage rate of wheat and corn harvesting and threshing. According to the method, the evolution trend of the grain damage rate in the wheat and corn harvesting and threshing process can be accurately obtained in advance, and a basis is provided for wheat or corn harvesting and threshing self-adaptive damage suppression regulation and control.

The straw collecting and granulating device comprises a harvester body, a header assembly and a driving assembly, the driving assembly comprises an engine, a transmission assembly, a feeding assembly and a granulating assembly are arranged on the harvester body, the feeding assembly is connected with the right end of the header assembly, and the granulating assembly is connected with the right end of the header assembly. The feeding assembly comprises a feeding frame and a conveying mechanism, a first feeding port is formed in the left end of the feeding frame and connected with the header assembly, the granulation assembly is arranged below the feeding frame, one end of the transmission assembly is connected with the engine, and the other end of the transmission assembly is connected with the first driving shaft. According to the straw collecting and granulating device changed from the small-sized harvester, the small-sized crawler-type harvester is used as a main body for improvement, additional power is not needed, function conversion from threshing operation to straw collecting and granulating operation is achieved, and the straw collecting and granulating device is suitable for operation of small-area field parcels in the south, and flat-die granulating and field in-situ discharging of pure rice straw are completed.

The invention discloses an intelligent processing system for agricultural grain harvesting, and the system comprises a plurality of acoustic emission sensing units which are distributed in an array manner, are coupled to a threshing part, and are used for monitoring the micro-damage of grains; and the integrated multi-mode sensing unit is arranged on the grain conveying part and comprises a transmission type sensor for acquiring grain internal structure data, a spectrum sensor for acquiring grain surface chemical component data, a volatile organic compound sensor and a body moisture sensor. The system also includes a central data processor configured to: calculate a micro-damage index; generating a grain quality map; generating corruption risk features; and generating a system control signal for the agricultural harvesting device based on at least one of the microdamage index, the grain quality map, and the spoilage risk feature. The problems that internal damage cannot be monitored in real time, internal and external defects cannot be distinguished and moisture interference cannot be overcome in a harvesting field are solved.

The invention discloses a synergistic planting method for spring green manure-winter wheat crop rotation synergistic soil improvement, and relates to the technical field of crop planting, and the method comprises the following steps: S1, carrying out soil preparation treatment on three test fields in the first ten days of June in the current year, and then dividing areas in the three test fields to respectively sow six green manure crops; s2, in the first ten days of September, the upper portion of the green manure is cut up and evenly spread on the spot, and then green manure stubbles are turned and pressed through a small machine; s3, applying a ternary compound fertilizer as a base fertilizer on October 20th in the same year, and sowing wheat after 3 days; and S4, harvesting the wheat by adopting a harvester in the next year, and performing threshing and warehousing operation. The method has the advantages that the soil fertility is improved by turning and pressing green manure, the saline-alkali soil structure is effectively improved, the yield and quality of winter wheat are effectively improved, and environment friendliness is achieved.

A dynamically operated concave threshing bar system, method, and apparatus wherein one or more threshing bars within a concave can dynamically move to various positions in real-time based on one or more conditions such as the type crop being harvested and on a determination by a combine harvester's computerized system, artificial intelligence (AI) system, or upon the operators' input, among others. The concave can include a concave frame having a pair of arcuate side members, a threshing bar, and an actuator coupled to the threshing bar, wherein the actuator can be configured to move the threshing bar along the arcuate side members of the concave frame.

To provide a harvester work machine with good workability in order to solve a problem of poor workability due to a side carrier provided only on an outer side of a machine body of a collection part so that it is required to repeat riding on and off the side carrier for moving frontward or backward on the side carrier, the side carrier for performing collection work on which an operator is onboard on the outer side on the machine body of the collection part for collecting grains into a chaff bag from a hopper.SOLUTION: A harvester work machine includes a machine body provided with a drive device 3, 3 and an operation part 7 having a reaping device 5, a thresher device 6, and a hopper 30, in which a side carrier 32 is provided on an outer lateral side of the hopper 30. A front extension carrier 33 is provided over an outer lateral side of the operation part 7 on a front side of the side carrier 32 so as to be switchable between a work state where the carrier is opened on an outer side of the machine body and a stored state where the carrier is folded inward of the machine body.SELECTED DRAWING: Figure 1

The invention relates to the technical field of agricultural harvesting equipment, in particular to an awn crushing, threshing and cleaning device of a highland barley combine harvester. Wherein the threshing cylinder is divided into a front end awn crushing section and a rear end threshing section, two sections of spike teeth are driven to rotate reversely through a coaxial reversing mechanism, a feeding auger and an awn crushing fan are arranged at the front end, and material conveying and preliminary wheat awn scattering are synchronously achieved; an anti-blocking and unblocking roller device is assembled on the outer side of the arc-shaped concave plate, and screen hole clamping objects are carded in real time; a top cover plate of the threshing cylinder is provided with a sectional type material guide plate, a hydraulic spike tooth assembly and a feeding quantity sensor, and the material accumulation working condition is dynamically adapted; the controllable fan is provided with a variable frequency drive and an adjustable air guide plate, and the air speed and the airflow direction can be adjusted according to working conditions. All the modules work cooperatively through the controller, threshing-awn crushing-cleaning integrated operation of highland barley is achieved, threshing thoroughness, awn processing efficiency and cleaning precision can be improved, manual intervention is reduced, and the requirement for large-scale highland barley harvesting is met.

The invention relates to a harvester cleaning system with a multi-stage cleaning function, and belongs to the technical field of agricultural machinery. The problems of low cleaning efficiency and effect in the prior art are solved. Comprising a first-stage cleaning fan, a cleaning shaking plate, a second-stage cleaning fan, a step plate and a reciprocating type vibrating screen, and the cleaning shaking plate is located below an axial flow roller; the first-stage cleaning fan is located in front of the cleaning shaking plate and used for conducting first-stage cleaning on the materials; the step plate is located below the tangential flow roller, and the reciprocating type vibrating screen is located behind the step plate. The stepped plate is used for conveying materials threshed by the tangential flow roller and materials from the cleaning shaking plate to the reciprocating type vibrating screen; the second-stage cleaning fan is positioned in front of the reciprocating type vibrating screen and is used for carrying out second-stage cleaning on the materials; the cleaning shaking plate, the step plate and the reciprocating type vibrating screen are in linkage through a connecting rod assembly. According to the multi-stage cleaning device, threshed materials can be subjected to multi-stage cleaning treatment, so that the working efficiency of the harvester and the cleaning rate of grains are improved.

The invention discloses a threshing cylinder with adjustable threshing tooth camber and unchanged cylinder outer diameter and an adjusting method, the threshing cylinder comprises a cylinder body, threshing teeth on the cylinder body comprise bottom threshing teeth, top threshing teeth and threshing tooth sleeves, the threshing tooth sleeves are vertically arranged on a fixed rod in a penetrating manner, the bottom threshing teeth are slidably sleeved in the threshing tooth sleeves, and the top threshing teeth are sleeved in the top threshing teeth. The bottom ends of the top threshing teeth are rotatably hinged to the top ends of the bottom threshing teeth through pin shafts, threshing tooth bending adjusting mechanisms and threshing tooth length adjusting mechanisms are arranged on the fixing rods, and the threshing tooth bending adjusting mechanisms are connected with the top threshing teeth and control the top threshing teeth to rotate around the pin shafts so as to adjust the bending of the threshing teeth. The threshing tooth length adjusting mechanism is connected with the bottom threshing teeth and controls the bottom threshing teeth to ascend and descend so as to adjust the length of the threshing teeth, and the outer diameter of the roller can be kept unchanged after the bending degree of the threshing teeth changes. When the method is used for adjusting, machine halt and machine disassembly are not needed in the whole process, and the method has the advantages of being wide in adaptability, high in adjusting efficiency, low in cost, capable of achieving multiple purposes through one machine and the like.

The utility model belongs to the technical field of threshing devices, in particular to a low-loss threshing device for soybean harvesting, which comprises a threshing box, the top of the threshing box is communicated and fixed with a drying box with an opening on one side, the top of the drying box is fixedly connected with an air heater, and an output pipe of the air heater extends into the drying box and is communicated and fixed with a rectangular pipe. The hot-air blower and the motor are started, the hot-air blower discharges hot air into the air outlet cover through the rectangular pipe to be discharged, soybeans driving a shell are conveyed into the filter box in the threshing box through the conveying frame, the soybeans are dried through the air outlet cover in the conveying process, along with continuous rotation of the circular plate, the process is repeated continuously, and therefore the soybeans can be completely threshed. According to the soybean hulling device, continuous impact is formed, so that soybeans are hulled, after multiple times of impact and hulling, hulls of the soybeans gradually fall off, clean soybeans are left, the soybeans are discharged through a discharging opening, the hulls are retained in a filtering box, and therefore the soybeans are firstly subjected to drying treatment and then subjected to threshing, and loss is reduced.

This invention relates to the field of forage seeds, disclosing an efficient and low-loss combined harvesting method and system for forage seeds based on the Internet of Things (IoT). The method includes: sending a detection laser from a combine harvester in the forward direction, and receiving the reflected laser in the combine harvester; constructing a density map and height map of forage plants in the forward direction; adjusting the height of the cutting module to obtain a cutting module with adjusted height; adjusting the perimeter of the conveying module using the height map to obtain a conveying module with adjusted perimeter; adjusting the size of the sieve aperture of the threshing module using the particle diameter to obtain a threshing module with adjusted sieve aperture; adjusting the wind speed of the separation module to obtain a separation module with adjusted wind speed; and completing the combined harvesting of forage seeds using the height-adjusted cutting module, the perimeter-adjusted conveying module, the sieve-aperture-adjusted threshing module, and the wind speed-adjusted separation module. This invention enables efficient and low-loss adjustment of the combine harvester through IoT technology.

The invention belongs to the technical field of harvesters, and particularly relates to an intelligent rice harvester based on remote control, which comprises a central control cab, a granary, a motorized crawler belt and a threshing plough, a grain unloading pipe is mounted on the outer wall of the granary, and a water storage tank is fixedly connected to the outer wall of one side of the central control cab; a mounting base is fixedly connected to the outer wall of the bottom of the water storage tank, a monitoring probe is fixedly mounted on the outer wall of the bottom of the mounting base, water mist nozzles are mounted on the outer wall of the bottom of the mounting base around the outer wall of the monitoring probe in an array mode, and the interior of the granary is monitored through the monitoring probe, so that the unloading time and progress are judged; reserve water is loaded in the water storage tank, when the outer wall of the monitoring probe is covered with dust, water flow in the water storage tank is opened and can be injected to the outer wall of the monitoring probe through the water mist spray head, impurities attached to the outer wall of the monitoring probe are washed away, the stability of the monitoring sight line is guaranteed, and workers can conveniently judge and unload grains.

The present invention aims to provide a combine harvester that can maintain good threshing performance by improving the feeding of grain stalks into the threshing device, even when a large amount of grain stalks are sent to the threshing device. [Solution] In a combine harvester, a threshing device 4 is mounted on the machine frame 1, in which a threshing cylinder 11 is pivotally supported in a threshing chamber 10, a plurality of grain stalk feeding guides 60 are provided in the threshing chamber 10, and a receiving net 12 surrounds the lower half of the threshing cylinder 11. The threshing device of the combine harvester is characterized in that the spacing La of the front grain stalk feeding guides 60a provided on the front end side of the threshing cylinder 11 is narrower than the spacing Lb of the intermediate grain stalk feeders 60b provided in the middle part of the threshing cylinder 11.

The invention relates to the technical field of corn harvesting, and discloses corn harvesting and threshing intelligent integrated equipment which comprises a harvester, a processing bin is arranged on the harvester, and a discharging pipe is arranged on the harvester. Reciprocating motion of the position of the discharge pipe can be achieved, the hopper of the whole transport vehicle can be evenly and fully paved finally, the utilization rate of the space of the hopper is greatly increased, when the width of the hopper of the transport vehicle is small, the stroke of the air cylinder can be controlled through the control assembly to be automatically adjusted according to the width of the hopper of the transport vehicle, and the working efficiency is improved. By means of the control assembly, the discharging pipe can make horizontal reciprocating motion above the vehicle hopper all the time, the discharging pipe is prevented from moving out of the vehicle hopper, corn kernels are prevented from being scattered out of the vehicle hopper, the deflection condition of the vehicle hopper can be monitored, a worker can be reminded to adjust the position of the vehicle hopper in time when the vehicle hopper deflects, a first vertical plate in the control assembly can be protected, and the working efficiency is improved. And the first vertical plate is prevented from being broken off by the inclined car hopper.

A manual sorghum threshing device belongs to grain threshing devices and comprises a first unit, the first unit comprises a protective glove, the protective glove comprises a finger portion and a palm portion, a protective plate is arranged on the finger portion and / or the palm portion, and spine protrusions used for increasing friction force are arranged on the protective plate; the second unit comprises two unit bodies of the same structure, the two unit bodies are hinged, a threshing plate is fixedly arranged relative to the inner side faces of the unit bodies, the other side of the threshing plate is an arc-shaped edge, and edge teeth used for threshing are arranged on the arc-shaped edge. After the two unit bodies are buckled, the threshing plates arranged on the two unit bodies are matched to form a ring structure allowing sorghum stalks to penetrate through. The small-scale sorghum threshing device can achieve small-scale manual sorghum threshing, is simple and reasonable in structural design, convenient to use and low in cost, and can achieve high-efficiency sorghum threshing, so that the labor intensity of manual threshing is reduced, and the manual threshing efficiency is improved.

The application discloses a combine harvester with a material differentiation processing function, which comprises a walking chassis, a ploughing and harvesting assembly, a material conveying assembly and a threshing and cleaning assembly arranged in sequence from front to back on the walking chassis; the threshing and cleaning assembly comprises a threshing device and a cleaning device arranged in an up-down mode; the cleaning device comprises a sieve body and a driving main shaft for vibrating the sieve body; the number of the sieve bodies is at least three, and all the sieve bodies are closely arranged in the axial direction of the driving main shaft; a driving member is connected between the driving main shaft and each sieve body, and the specifications of the driving members connected with the sieve bodies at different positions are different, so that the vibration parameters of the sieve bodies at different positions are different. In the application, the structural design of the cleaning device can fully meet the distribution characteristics that the materials falling from the threshing cylinder of the threshing device are more on both sides and less in the middle, and targeted screening processing of the differentially distributed materials is realized.

The utility model relates to the technical field of agricultural machinery, in particular to a re-threshing device and a harvester. The re-threshing device comprises a toothed plate assembly, a toothed plate seat assembly, a rotary connecting seat and an adjusting seat; the rotary connecting seat and the adjusting seat are both arranged on the toothed plate seat assembly; one end of the toothed plate assembly is rotationally connected with the toothed plate seat assembly through a rotary connecting seat; the other end of the toothed plate assembly is detachably connected with the toothed plate seat assembly through the adjusting seat, and the angle between the toothed plate assembly and the toothed plate seat assembly can be adjusted. The toothed plate assembly comprises a bottom plate and a plurality of threshing toothed plates, and the threshing toothed plates are arranged on the same side of the bottom plate; the toothed plate base assembly is provided with a plurality of adjusting grooves, and the threshing toothed plate penetrates through the adjusting grooves and is used for threshing grains. According to the utility model, the re-threshing device can be used for re-threshing different varieties of rice in different growth states, and diversified operation requirements are met.

An agricultural harvester includes: a chassis; and a threshing and separating system coupled with the chassis, the threshing and separating system including a rotor including at least one brush device including a plurality of fingers which are flexible, the plurality of fingers being configured for engaging a crop material.

To provide a combine-harvester capable of reducing frequency of maintenance work on a cutting device of a pre-harvest treatment device and suppressing the stopping of drive of the cutting device.SOLUTION: A pre-harvest treatment device (3) comprises: a raking device (3A) for transporting grain culms in a field backward, with their erecting upright; a cutting device (3B) for cutting bases of the transported grain culms; an auger device (3C) for gathering the transported grain culms to one side; and a feeder house (3D) for transporting the gathered culms to a thresher (4). The cutting device (3B) is formed of a pair of left / right rotary blade devices (20), and a lifter device (30) disposed above the rotary blade devices (20). A pair of left / right lifters (31) extending in a longitudinal direction of the lifter device (30) is disposed above rotary blades (22) of the rotary blade devices (20), and rear parts of the lifters (31) are rotatably mounted on a first support shaft (34) extending in a horizontal direction.SELECTED DRAWING: Figure 4