130 results about "Threshing machine" patented technology

This utility model discloses a corn threshing roller and a corn threshing roller assembly, belonging to the technical field of small agricultural threshers, mainly used for corn threshing. The technical problem to be solved by this utility model is to provide a corn threshing roller, including a rotating shaft and a supporting mechanism. A first layer of threshing ribs is arranged on the supporting mechanism with the rotating shaft as the center, and a second layer of threshing ribs is arranged outside the first threshing ribs. The supporting mechanism includes end supports arranged at the ends of the rotating shaft, and the first layer of threshing ribs is arranged between the end supports. The inner side of the first layer of threshing ribs has space for material passage. A corn threshing roller assembly is also provided, including a first and a second threshing roller arranged in parallel, forming a threshing channel between them. The first threshing roller is the aforementioned corn threshing roller, and the second threshing roller includes a second rotating shaft, a second supporting mechanism, and auxiliary threshing ribs. This utility model can improve the threshing rate and threshing efficiency, reduce the breakage rate, and improve the threshing quality.

The utility model provides a self-propelled sunflower harvester, which belongs to the technical field of agricultural machinery and structurally comprises a self-propelled vehicle machine and a frame, a header is arranged at the front end of the frame, and a primary conveyor and a secondary conveyor are communicated with the rear of the header. The rear part of the secondary conveyor is communicated with a thresher; a screening mechanism is arranged below the thresher, and the screening mechanism is composed of a first-stage vibrating screen which is composed of a swinging fish scale screen and rushes backwards, and a second-stage vibrating screen which is composed of a swinging stepped dense mesh screen and rushes forwards; the screening mechanism communicates with the conveying and lifting mechanism. The conveying and lifting mechanism comprises a transverse auger and a bucket elevator. And the conveying and lifting mechanism is connected with the grain collecting hopper. The sunflower seed and sunflower disc separating device can achieve good separation of sunflower seeds and sunflower discs, the sunflower seeds and the sunflower discs are respectively conveyed in two paths during threshing, and simple and efficient threshing separation can be achieved. The threshing process is automatically completed, manpower and material resources are saved, and good harvesting and harvesting effects are achieved.

The invention relates to the technical field of agriculture, in particular to a mechanized efficient tartary buckwheat harvesting method which comprises the following steps: cutting plants at a position 10-15 cm away from the ground by adopting a cutter-rower, and keeping the ground clearance of the bottom ears of formed strip paving at 20-30 cm to form a natural ventilation channel; the green seeds are cut and dried in the sun and then laid in the field for 3-5 days without turning over, uniform drying is promoted through the fluffy structure of the plants, and the green seeds are subjected to after-ripening and synchronous dehydration in the laid strips; a threshing machine is adopted to operate the aired strip-shaped laying, a threshing device of the threshing machine drives a roller with an elastic element at the rotating speed of 400-600 rpm, seeds are separated through mutual rubbing of plants under the large gap of 15-25 mm, the breakage rate of the seeds is smaller than 2%, and the comprehensive loss rate is smaller than 5%. And scientific harvesting opportunity, energy saving in the airing process and low loss of threshing operation can be achieved, and the efficiency, quality and economic benefits of mechanical harvesting of tartary buckwheat are greatly improved.

The invention relates to the technical field of corn harvesters, and discloses a corn harvester with a low-loss threshing structure.The corn harvester comprises a machine body, a threshing shell is installed on one side of the top of the machine body, a threshing mechanism is arranged in the threshing shell, and the threshing mechanism comprises a corn kernel bin; the outer wall of the corn kernel bin is fixedly connected to the inner wall of the threshing shell, a material bin is arranged in the corn kernel bin, a fixing block is installed on the inner wall of the bottom of the material bin, a fixing base is rotationally connected to the top end of the fixing block, and a cylinder is fixedly connected to the top of the fixing base; the inner wall of the bottom of the threshing shell is fixedly connected with a supporting frame. According to the corn thresher, the hammer head rotating at a high speed is adopted, and an air blowing mechanism and a vibration mechanism in the auxiliary threshing assembly are combined, so that the flowing speed of corn in the barrel is effectively increased, the staying time of the corn in the barrel is shortened, the breakage rate of corn kernels is reduced, and the commodity quality and the subsequent processing and utilization value of the corn kernels are effectively improved.

The invention belongs to the field of millet harvesters, and particularly relates to a millet ear and stalk synchronous harvesting and threshing all-in-one machine which comprises a rack, walking wheels and a harvesting mechanism, the harvesting mechanism comprises clamping conveying belts and an ear pulling device, the clamping conveying belts are arranged in a bilateral symmetry mode to form clamping seams, a cutting-off device is further arranged at the tail ends of the clamping conveying belts, and the ear pulling device is arranged on the rack. The cutting wood extending above the clamping conveying belt is shifted to one side of the clamping conveying belt, and a header mechanism is further arranged and is connected with a threshing mechanism. The clamping conveying belt is adopted for clamping the whole millet, scions overhang above the clamping seam, along with advancing of the traction device, the millet moves to the scion pulling device along with the clamping conveying belt, the scions are pulled to one side of the clamping conveying belt through the scion pulling device, then the scions are cut off through the header mechanism and fall into the threshing mechanism, and then the millet is threshed. Synchronous harvesting and threshing operation of millet ears and stalks are achieved, the straw content during millet threshing is reduced, and the added value of millet planting is increased.

The utility model discloses a threshing machine for sesame threshing, which relates to the technical field of agricultural machinery and comprises a box body, a feed inlet, an extrusion mechanism and a screening mechanism. The feeding port is fixedly formed in the left side of the box body, a discharging port is formed in the right side of the box body, and an extrusion mechanism used for sesame threshing is fixedly arranged at the front end of the box body. The synchronous motor drives the stirring wheel to rotate and extrude the floating ball to enable the sliding rod to slide, the reset spring enables the sliding rod to reset, the sliding rod drives the sieve plate to move up and down to screen sesame grains, the sliding door is pulled open, discharging is achieved through inclination of the sieve plate, overall operation is easy and convenient, work efficiency is improved, and convenience is brought to operators. Straw is rapidly thrown out of the box body through centrifugal force and the design of the guide plate, the straw and sesame seeds are efficiently separated, the threshing efficiency is improved, operation is easy and convenient, and practical production and application are facilitated.

The anti-blocking mechanism of the threshing machine comprises a material receiving barrel, fixing frames are fixedly connected to the two sides of an inner cavity of the material receiving barrel, embedded grooves are formed in the bottoms of the fixing frames, and filter screens are fixedly connected to the opposite sides of the two embedded grooves through elastic sealing connecting belts. And one side of the elastic sealing connecting belt is fixedly connected with the inner cavity of the material receiving cylinder. The utility model relates to the technical field of threshers. According to the anti-blocking mechanism of the threshing machine, during filtering, steel wire pull ropes are pulled to move up and down through electric hoists on the two sides respectively, a filter screen is driven to irregularly vibrate left and right below an embedded groove, vibration filtering is carried out, omission is prevented through arrangement of an elastic sealing connecting belt, and the anti-blocking mechanism is convenient to use. During vibration, a poke rod can be driven to poke in the crops, the descending speed of the crops is increased, and the filtered crops fall into the lower part and are output through a discharge port.

The present application provides a kind of corn threshing screening device, it is related to corn threshing screening technical field, including: screening plate is obliquely arranged in the discharge port below corn thresher, screening plate is provided with through slot in the surface of being penetrated up and down, the inner diameter of through slot is less than the outer diameter of corn cob;First conveying mechanism is arranged below screening plate, and first conveying mechanism is used to convey corn kernel to screening mechanism.Collecting cylinder is linked with the lower end of screening plate, for collecting corn cob.Corn is separated into corn kernel and corn cob by corn thresher and discharged to screening plate by discharge port, due to the inclination of screening plate, corn kernel and corn cob will slide down, in the process, corn kernel falls into first conveying mechanism along through slot, corn cob continues to slide along screening plate until falling into collecting cylinder, realizes the effect of automatic separation of corn kernel and corn cob.Corn kernel is further removed by screening mechanism Moldy corn kernel, so as to realize the effect of automatic screening of corn kernel.

The utility model discloses a spiral conveying type combine harvester structure which comprises a harvester body, two supporting panels are installed at the front end of the harvester body, a grain pulling wheel and a cutter are jointly installed at the front ends of the two supporting panels, a conveying mechanism is installed between the two supporting panels, the conveying mechanism is of a spiral conveying structure, and the grain pulling wheel and the cutter are arranged on the spiral conveying structure. Crops are spirally conveyed into the threshing mechanism through the conveying mechanism; in the process of conveying crops, the harvester relates to the technical field of harvesters, a conveying mechanism is arranged between two supporting panels, a plurality of screw rods are arranged in the conveying mechanism, the cut crops are conveyed into a supporting seat by a header screw propeller, and the crops are extruded and cut by the screw rods; and the crops are cut, so that the crops are more easily threshed after entering the threshing mechanism, the threshing efficiency of the crops is improved, and the blocking frequency of the crops in the threshing mechanism is reduced.

The invention relates to a rice and wheat in-situ yield measurement device, system and method, and relates to the technical field of yield measurement, the rice and wheat in-situ yield measurement device comprises a mounting assembly, a separation assembly, a detection assembly and a display module, feeding, threshing, impurity removal and detection structures are integrated into a whole, the structure is compact, an operation handle is held by hand to move to any point in the field, and operation is convenient. Rice and wheat crops are inserted into the feeding opening, the separation assembly can discharge impurities such as glume shells, stems and leaves to the periphery of the roots of the plants, a covering layer is formed, water evaporation is reduced, organic matter is supplemented, additional collection bags are not needed, and zero-material-consumption and zero-waste green operation is achieved; particle parameters and position parameters are obtained and displayed through the display screen immediately, a traditional threshing machine, a traditional cleaning machine and a traditional table type metering device do not need to be carried for dispersed operation, multiple times of detection can be carried out at the same place, and the accuracy of yield indexes is improved.

The utility model relates to the technical field of corn threshers, in particular to a drum-type corn thresher which provides a place for corn threshing through a threshing drum, conveys corn through a conveying device, threshes the corn through a threshing device and removes dust through a dust removal device. Comprising a supporting device; the corn thresher further comprises a threshing cylinder, a conveying device, a threshing device and a dust removal device, the threshing cylinder is installed on the supporting device, and the conveying device, the threshing device and the dust removal device are all installed on the threshing cylinder; the threshing cylinder provides a place, the conveying device conveys, the threshing device threshes, and the dust removal device removes dust.

The utility model relates to the field of agricultural mechanical equipment, in particular to a lifting alarm device for an elevator of a corn thresher, which comprises the elevator on the corn thresher, a rack matched with the elevator and a protective guard. An infrared sensing device for human body induction is installed on the machine frame and / or the protective guard, the control module receives signals of the infrared sensing device and the working state of the elevator for signal processing, and the control module is connected with a warning device. The automatic warning device is combined with a mechanism and an operation process of the corn thresher to realize an automatic warning function, so that a person is effectively reminded to be far away from an action area, the safety of threshing operation is improved, personal injury accidents are effectively avoided, and the automatic warning device has better practicability and market popularization value.

The invention discloses a double-roller type fresh lotus seed thresher, and particularly relates to the technical field of lotus seed threshers, the double-roller type fresh lotus seed thresher comprises a support frame, a conveying threshing assembly is arranged on the support frame, and the conveying threshing assembly comprises a support plate arranged on the support frame. The function of conveying small lotus seedpod tissues is achieved through rotation of the conveying belt, meanwhile, the small lotus seedpod tissues can be shunted through the shunting plates when conveyed, the small lotus seedpod tissues are shunted and conveyed to the position between the two spiral paired rollers, threshing of the small lotus seedpod tissues is facilitated, and the threshing efficiency is improved. In the rolling forward process of lotus seeds on the spiral rollers, turned lotus seedpod peels are clamped and torn by the oppositely rotating spiral rollers, overall separation of the lotus seedpod peels and the lotus seeds is achieved, the pressing plate provides downward pressure for small lotus seedpod tissue blocks, it is guaranteed that the lotus seedpod peels are easily clamped by the spiral rollers, the lotus seeds are separated from the lotus seedpod tissue blocks, and therefore the lotus seedpod peels are separated from the lotus seedpod tissue blocks. The threshing effect is ensured.

The utility model relates to corn ear threshing technical field discloses an experimental micro corn single ear thresher, including the casing, the casing top one side is established has the feeding opening, the cavity is established at the inside one end of casing, the casing includes the threshing mechanism for threshing and the feeding mechanism for feeding, the utility model discloses the taper gradual change design and the elastic adjustment of fixed tooth of first cone cylinder and second cone cylinder make corn ear not appear when threshing when leaking and threshing, on one hand can resist corn ear, avoid corn ear with first cone cylinder and second cone cylinder rotation and idle, on the other hand, fixed tooth and threshing post form relative motion, can form the auxiliary threshing effect of'scraping, extrusion' to the kernel on the surface of corn ear, thereby realize different size corn ear all can obtain the clamping force and the threshing intensity of matching in the threshing process, can adapt to the size difference of corn ear, can realize efficient threshing through gradually extruding and rubbing, realize adaptive operation.

The utility model discloses a thresher with winnowing mechanism, including the box, the bottom fixedly connected with the support of box, the top fixedly connected with the feed port of box, the inside top of box is provided with threshing bin, the inside movable joint of threshing bin has the rotary drum, the bottom of box is provided with the discharge gate, the inside of discharge gate is provided with the winnowing mechanism for removing the impurity. This thresher with winnowing mechanism is provided with the guide port, and the dry corn falls into the inside of discharge gate through the guide port after completing threshing in the inside of threshing bin, and the corn kernel is started after entering the inside of discharge gate, and the fan runs, and the fan produces the wind force and removes the impurity in the corn kernel, and the guide slide plate in the inside of discharge gate can effectively reduce the speed of corn kernel through the inside of discharge gate, thereby providing sufficient time for removing the impurity, to improve the effect of removing the impurity, and solve the problem of not automatic removal of the impurity.

The utility model relates to the field of agricultural equipment, in particular to a thresher capable of automatically adjusting a screen. The device comprises a rack, a machine shell, a rolling shaft shell, a rotating shaft rod, a stirring rolling shaft, a first screen, a second screen, a sealing shell, an expansion mechanism, a discharging hopper and an impurity discharging hopper, the machine frame is arranged on the ground, the machine shell is accelerated on the machine frame, the rolling shaft shell is located on one side of the machine shell, the rotating shaft rod is arranged on the rolling shaft shell and the machine shell in a penetrating mode, the stirring rolling shaft is located in the machine shell, the first screen is located below the stirring rolling shaft, the number of the second screens is two, and the second screens are arranged on the machine shell. The two first screens are arranged on the inner wall of the machine shell, the two second screens are located below the first screens, the sealing shell is installed on the inner wall of the machine shell and located on one sides of the second screens, the expanding mechanism is located in the sealing shell, the discharging hopper is arranged below the second screens, and the impurity discharging hopper is installed in the extending direction of one sides of the second screens.

1. The name of the design product: Threshing machine. 2. The use of the design product: For corn threshing machine. 3. The design points of the design product: In shape. 4. The picture or photo that best indicates the design points: Design 1 perspective view 1. 5. Design 1 is designated as the basic design.

The utility model discloses a millet harvesting thresher, including mobile car, be provided with the thresher subassembly on the mobile car, the thresher subassembly includes thresher cylinder, second motor, driving wheel, driven wheel and transmission belt, the thresher cylinder sets up on the mobile car, second motor fixed mounting is on the mobile car, the driving wheel is connected in the output of second motor, the driven wheel rotatoryly connects on the thresher cylinder, transmission belt transmission is connected on the driving wheel and driven wheel, one end of mobile car sets up in the filter component, the filter component includes fixed frame, mobile frame and filter plate, the fixed frame installs on the mobile car, mobile frame slidingly connects on the fixed frame, the filter plate installs on the mobile frame, to solve the operation of the thresher process in the background art not enough convenient technical problem.

The invention discloses a soybean regional test thresher, and belongs to the technical field of threshing machinery. The thresher comprises a rack, a threshing device and a screening device, walking wheels and a traction frame are arranged below the rack, and the thresher can be dragged to a field for operation; a threshing rotor driven by a motor is arranged in the threshing chamber and is matched with the arc sieve plate to realize efficient threshing; the screening device is composed of a coarse screen and a fine screen, screening is driven through a swing mechanism, screen holes of a coarse screen plate are 8-20 mm, screen holes of a fine screen plate are 3-4 mm, and impurities are removed in combination with an impurity removal fan. In addition, screw supporting legs are arranged at four corners of the rack to enhance stability, and an adjustable baffle is arranged above the coarse screen to prolong the residence time of oversize products. The device solves the problems that a traditional thresher cannot move in a field, impurity residues are high and materials are mixed, is suitable for single-cell independent threshing and yield counting in a soybean regional test, and has the advantages of being convenient to move, thorough in cleaning and high in working efficiency.

An agricultural thresher rotor comprising: a main body extending along a rotation axis in a processing direction from a front main body end to a rear main body end; a rotor transition surface extending from the front main body end and tapered to decrease in cross-sectional size, as viewed along the rotation axis, away from the main body; and at least one impeller extending away from the rotation axis from the rotor transition surface, and configured to move crop material towards the main body upon rotation of the rotor about the rotation axis. The rotor transition surface and the main body comprise at least one flute located downstream of the at least one impeller, and defining a recessed flute volume in the rotor transition surface and the main body. An agricultural thresher including a rotor, and an agricultural combine including the thresher are also provided.

The utility model relates to a broad bean thresher and belongs to the technical field of broad bean processing. Mainly comprises a rack, a feeding opening, a threshing assembly, a screening assembly, a driving assembly, a damping assembly, a telescopic device, a transmission motor and a gear disc, the rack is placed on the ground, the threshing assembly is installed at the top of the rack, the feeding opening is formed in the upper end of the threshing assembly, and a discharging opening is formed in the bottom of the threshing assembly; the transmission motor is installed at the top of the rack and is in transmission connection with the threshing assembly through a linkage belt and a belt pulley, the screening assembly is installed at the lower end of the rack, the driving assembly comprises a vibration motor and an eccentric block, the vibration motor is installed at the bottom of the screening assembly, and the eccentric block is installed on a motor vibration rotating shaft; the telescopic device is installed at the bottom of one end of the screening assembly, and the other end of the screening assembly is connected with the connecting block. By freely adjusting the angle of the screening assembly, the workload of people can be reduced, and the working efficiency can be improved.

We propose a combine harvester that allows the operator in the control room to easily adjust the wind speed of the winnowing machine's sorting air without having to dismount. [Solution] Below the threshing drum of the threshing machine, an oscillating sorting device for sorting grains leaking from the threshing drum and a winnowing machine for blowing sorting air onto the oscillating sorting device are provided. The winnowing machine is formed by a rotating shaft extending in the left-right direction, a pulley around the left side of the rotating shaft around which a belt that transmits the output rotation of the engine is wound, and blades supported at predetermined intervals in the circumferential direction of the rotating shaft. The pulley is formed by a left plate fixed to the rotating shaft, a right plate fixed so as to be slidable in the left-right direction along the rotating shaft, and a moving device (63) that slides the right plate. In a side view, a winnowing machine lever (52) for operating the moving device (63) is provided on the right wall of the threshing machine behind the driver's seat and in front of the grain lifting cylinder, and the lower part of the winnowing machine lever (52) and the front part of the arm (63A) of the moving device (63) are connected by a winnowing machine rod (53).

A process for sorting and primary production of C4 plants for subsequent production according to the invention involves management, preparation, and primary production of C4 plants, including an appropriate transportation system, to obtain two or more types of raw materials and products from the process according to the invention. The raw materials and the products obtained will be made to possess suitable and effective properties, as previously specified, prior to the subsequent process, wherein comprising a step of C4 plants through a mechanical method utilising machinery, tools, or equipment designed for harvesting, which separates parts of the C4 plant from the roots soil; and a sorting step, which is to provide for sorting of the parts of the C4 plant from the harvesting step or the preceding step by sorting ears or panicles and stalks from each other, wherein the ears or panicles are subjected to sorting of the C4 plant grains from the ears or panicles, then separating the C4 plant grains from shells / skins by threshing using a machine, tool, or equipment for threshing; and the stalks are subjected to separation of bagasse and sap by a mechanical process; and a primary production step, which aims to facilitate primary production through various methods applied to stalks obtained from the sorting or the preceding step, wherein comprising a primary production process for the grains of the C4 plant, for bagasse, and for the sap or for adjusting its concentration sap, and a primary production step of the stalks or pretreatment of the stalks; and a transportation step, which is to provide the management of a transportation system of the ears or panicles, the grains of the C4 plant, the shells / skins, the stalks, the bagasse, the sap, including the raw materials / products of the C4 plant obtained from the harvesting step, the sorting step, the primary production step, or from any one of the steps appropriately, to ensure optimal efficiency as prescribed for entering the subsequent production.

The application discloses a corn threshing machine capable of automatically separating corn kernels and a use method thereof, and belongs to the technical field of corn threshing and packaging. The corn threshing machine capable of automatically separating corn kernels and the use method thereof comprise a threshing cavity; a feeding port is communicated with the upper side of the threshing cavity; the threshing cavity comprises a working area and an adjusting cavity; a storage box is communicated with the working area; an opening with an open upper end is formed in the storage box; the storage box accommodates the corn kernels generated in the working area; a threshing mechanism is arranged in the working area and is slidably connected with the inner wall of the threshing cavity, so that the working height of the threshing mechanism is adjustable; an adjusting assembly is arranged in the adjusting cavity and is used for limiting the position of the corn in the adjusting cavity; a waste box is communicated with the adjusting cavity and is used for recycling the corn cobs in the adjusting cavity. The corn kernels on the corn cobs can be completely separated, the corn kernels and the corn cobs can be automatically separated, and the corn kernels and the corn cobs can be stored in different storage boxes.

The utility model relates to the technical field of threshing devices, and discloses a multifunctional thresher which comprises a corn thresher body, a collecting assembly for receiving materials at a corncob discharge port is arranged on the corn thresher body, the collecting assembly separates received corncobs from corn kernels, and the corn kernels are separated by the collecting assembly. The collecting assembly comprises a collecting tank slidably arranged on the bottom wall of the corn thresher body, an inclined filter screen is arranged in the collecting tank, a folding flow guide assembly is arranged in the collecting tank, the flow guide assembly guides materials at the corncob discharging port to the filter screen, and the corn thresher further comprises a fixing assembly for positioning the collecting tank. According to the corn thresher, discharged corncobs and mixed corn kernels can be effectively separated in the threshing process, so that the working procedures of threshing operation are reduced, the labor intensity of workers is reduced, and the practicability of the corn thresher is improved.

The utility model discloses a seed threshing winnowing device belongs to seed processing field, including fixed box and the assembly in fixed box inside's threshing mechanism, the top of fixed box is fixedly connected with the top cover, one side of fixed box is fixedly connected with the protection shell. The utility model discloses the setting of threshing mechanism, starts servo motor, drives two gear mutual rotation. Put the corn between two roller cylinders driven by the gear, and the corn kernel on the surface of corn will fall off due to the spiral column friction on the surface of roller cylinder, at the same time, corn is resisted by arc plate, further improves the friction effect of spiral column, effectively reduces the condition that corn kernel is knocked and smashed, improves the integrity of corn kernel threshing, in addition, the guide rod on the surface of gear drives movable plate one end to carry out up and down movement with fixed column as the pivot, makes the screen plate left and right sides up and down swing, in this way, the larger piece of residue will stay on the screen plate, and the corn kernel will drop smoothly, thereby improves the cleanliness after corn kernel threshing.

The hulling device for grain processing comprises a bottom plate, a thresher body is arranged on the left side of the top of the bottom plate, the top of the thresher body is communicated with a feeding hopper, and a discharging opening is formed in the lower portion of the right side of the thresher body. Light grain hulls are extracted into the collection box through the hull extraction cover, effective separation of the grain hulls is achieved, hull residues in grains are avoided, the sealed cleaning door on the front face of the collection box facilitates regular cleaning of the collected grain hulls, centralized processing of the grain hulls is achieved, the grain hulls are prevented from scattering all around, the vibration motor enables the material receiving frame to vibrate, and the grain hulls can be effectively separated. The reset buffer mechanism can play a role in buffering and resetting in the vibration process, and the effects that the negative pressure device is used for extracting a grain hull mixture after hulling, hulls with the light mass are extracted away, the grain hulls are separated thoroughly, the separated grain hulls are collected and treated in a centralized mode, follow-up processing is facilitated, and the environmental protection property is improved are achieved.

The utility model discloses a multifunctional sorghum thresher, which belongs to agricultural machinery equipment and is characterized in that double threshing cylinders are continuously arranged in the thresher, and a top cavity is arranged at the top of the second threshing cylinder. Baffles are arranged at the top positions of the rear sides of the first threshing roller and the second threshing roller, and a double-roller threshing cavity is formed. According to the multifunctional sorghum threshing machine, the continuous synchronous double-roller structure is adopted, the arc-shaped top cavity is formed in the top of the second threshing roller, the baffle of the double-roller structure is combined, a continuous double-roller threshing cavity structure is formed, the threshing effect is good, and the processing efficiency is high. The continuous double-roller structure, the induced draft fan coaxial with the rollers, the double rollers running synchronously and the grain feeding device are adopted, so that the whole structure of the machine is compact and simple, the threshing machine is suitable for threshing crops such as sorghum, soybeans, oilseed rape, rice, wheat and coix seeds, the production cost of the machine is reduced, and the competitiveness is remarkably improved.

The invention discloses a harvesting opening anti-locking device and method for a grain combine harvester, and belongs to the field of combine harvesters. A front baffle and a rear baffle are fixedly connected between the two side plates; a feeding hole is formed in the front baffle plate; an upper baffle, a conveying mechanism and a lower baffle are sequentially arranged between the two side plates from top to bottom. The lower end of the side, away from the feeding port, of the upper baffle is hinged to the free end of a telescopic plate, and the fixed end of the telescopic plate is hinged to the inner wall of the side plate. A slideway I is horizontally arranged on one side, away from the discharge port, of the side plate; a slide block in sliding fit with the slide way I is arranged in the slide way I; the position of the check block can be controlled through the feeding amount, so that when the feeding amount is too large, part of grains are conveyed to the lower end of the conveying mechanism, the pressure caused by the too large feeding amount is relieved, and the probability that a harvesting opening and a threshing mechanism are blocked is reduced; and the grains temporarily stored below the conveying mechanism are conveyed into the threshing mechanism again, so that the harvesting efficiency is ensured.