43 results about "Grain elevator" patented technology

The present invention relates to the technical field of elevators, and more specifically, to a grain elevator based on modern agricultural machinery and equipment, comprising a base, an elevator structure, a drive structure, a feeding structure, a rotating structure, and an opening and closing structure. The setting of the feeding structure avoids the blockage problem caused by excessive accumulation of grain at the elevator feed port, making the grain distribution more uniform, while facilitating operators to add grain to the equipment and improving flexibility. The setting of the rotating structure facilitates rapid adjustment of the direction of the discharge pipe on the elevator, thereby facilitating the delivery of grain to grain storage tanks in different directions, avoiding the adjustment of the overall direction of the elevator and improving operational efficiency. The setting of the opening and closing structure can flexibly adjust the valve opening according to production needs, accurately control the discharge flow of materials such as grain, and quickly cut off the discharge, with strong flexibility.

A conveyor over-limit loading recovery device comprises a grain elevator, a grain elevator pipe, a walking track and a walking trolley, the conveyor is obliquely arranged on one side of a compartment of a grain transport vehicle, the grain elevator is fixedly installed on the conveyor through a supporting frame, and the walking track is fixed to the side face of the grain elevator in the mode of being parallel to the horizontal plane. The walking trolley is arranged on the walking track; the grain suction pipe is composed of a hose and a stainless steel pipe, one end of the hose is connected with a material suction opening of the grain elevator, the other end of the hose is in butt joint with one end of the stainless steel pipe, the other end of the stainless steel pipe is bent downwards and extends into a compartment of the grain transporting vehicle, and the stainless steel pipe is fixedly connected to the side face of the walking trolley. According to the over-limit loading and recycling device of the conveyor, the grain elevator and the walking track are directly arranged on the conveyor, and the grain elevator pipe is movably installed on the walking track through the walking trolley. The whole device is simple in structure, is arranged on the conveyor, and does not occupy extra volume space when not in use.

The utility model discloses a traction type grain elevator which comprises a traction machine box, a grain elevator mechanism, a negative pressure mechanism, a spiral material lifting machine and a grain storage bin, the grain elevator mechanism is arranged on one side of the traction machine box, the negative pressure mechanism is further arranged in the traction machine box and comprises a negative pressure bin, a grain outlet is formed in the bottom of the negative pressure bin, and the spiral material lifting machine is arranged in the grain storage bin. In addition, the spiral lifting mechanism is fixedly connected to the traction case, a grain inlet in the bottom of the spiral lifting mechanism corresponds to a grain outlet, a grain storage bin is further rotationally connected to the traction case, the grain storage bin corresponds to a grain discharge port of the spiral lifting mechanism, an overturning oil cylinder is rotationally connected to the traction case, and the overturning oil cylinder is connected with the spiral lifting mechanism. The overturning oil cylinder is rotationally connected with the grain storage bin, and a power shaft is rotationally connected to the traction machine box and is in power connection with the negative pressure mechanism and the spiral material lifting machine. The utility model relates to the technical field of grain elevators, and has the characteristics of quickening the production efficiency, being suitable for being used in small-scale farmlands, and being low in failure rate.

The utility model discloses a grain elevator with an adjusting function, which relates to the technical field of grain conveying and comprises a frame, a lifting mechanism is movably mounted on one side of the frame, a dust removal mechanism is mounted on the front side of the frame, and an input end of the dust removal mechanism is communicated with an output end of the frame and two sides of the lifting mechanism. By the adoption of the structure, after grains are added into the feeding hopper, the grains are guided to the feeding plate on the conveying belt through the discharging hopper, the first motor is started to drive the conveying belt to rotate in the mounting frame, the feeding plate moves in a reciprocating mode to achieve feeding, and the air cylinder is started in the feeding process; and the hinged frame is pushed to move up and down in a linkage mode, so that the conveying belt is driven to move up and down, the grain feeding height can be flexibly adjusted and matched, stability and convenience are achieved, the use convenience of the device is greatly improved through the design, the grain lifting process is more efficient and flexible, and different feeding requirements can be met.

The present invention relates to a self-propelled combine harvester (1) for receiving and processing harvested crop, wherein the combine harvester (1) comprises a grain elevator (12) for conveying a crop flow (900) from a cleaning device (10) of the combine harvester (1) to a grain tank (13) of the combine harvester (1). The combine harvester (1) comprises a bypass device (14) arranged on the grain elevator (12) for extracting a partial crop flow from the crop flow (900) conveyed by the grain elevator (12), wherein the bypass device (14) comprises an optical measuring device (19) for determining crop properties, in particular constituents, of the crop partial flow, and wherein the bypass device (14) comprises a capacitive measuring device (21) for determining crop properties of the crop partial flow.The combine harvester (1) is characterized in that the capacitive measuring device (21) is provided and configured to determine crop properties of the crop partial flow only when it is not possible to determine crop properties of the crop partial flow using the optical measuring device (19).

The utility model relates to the field of grain conveying equipment, and discloses a grain elevator with a dust removal function, which comprises a bottom plate, the top of the upper side wall of the bottom plate is fixedly connected with a first support frame, the inside of the first support frame is connected with a feed hopper in a penetrating manner, and the top of the feed hopper is fixedly connected with a dust suction box; and the top of the dust suction box is fixedly connected with a first flow guide plate. By arranging the feeding hopper, the dust suction box, the suction pump and the triple pipe, the problems that normal working efficiency is affected, and the purity and taste of flour are reduced can be solved, when grains enter the feeding hopper, a large amount of dust can be generated due to flowing, impacting and the like of materials, at the moment, the suction pump is started, and the dust can be removed. The first connecting pipe is communicated with the square pipe, and a negative pressure area is formed in the middle of the feeding hopper, so that pollution of dust to other equipment and stored grains is effectively reduced, part abrasion caused by dust friction is reduced, and the service life of the equipment is prolonged.

The utility model relates to the technical field of agricultural machinery, in particular to a multipurpose grain lifting device and a harvester, which comprise a grain elevator, a cluster box, a grain recycling box and an adjusting device which are arranged on a machine frame, and a turnover mechanism is further arranged on the machine frame. One end of the turnover mechanism is hinged to the rack, the other end of the turnover mechanism is hinged to the grain recycling box, the turnover mechanism is used for driving the grain recycling box to turn over, and the grain recycling box can directly unload grains without passing through the discharging bin. On the basis of an existing dual-purpose grain lifting device, a grain unloading mode is newly added, the grain unloading speed is increased, and fast grain unloading is achieved so that time can be saved for rush harvesting.

The utility model discloses a cleaning mechanism for a grain elevator, which relates to the field of grain elevators, and comprises an elevator feeding cylinder, the inner wall of the elevator feeding cylinder is fixedly connected with a clamping block, the top of the elevator feeding cylinder is provided with a rotating rod, the outer wall of the rotating rod is provided with a limiting block, and the limiting block is fixedly connected with the clamping block. A screening box is installed on the inner wall of the elevator feeding cylinder, a screen is fixedly connected to the bottom of the screening box, the screening box is moved, clamped and installed on the inner wall of the elevator feeding cylinder and arranged on a clamping block, and a limiting block is rotated, so that the limiting block can rotate along the elevator feeding cylinder, the screening box is limited, and the screening effect is improved. Grain is poured into the feeding barrel of the elevator, soil and large impurities carried in the grain can be blocked and filtered under the action of the screen fixedly connected to the bottom of the screening box, and the effect of conveniently filtering and cleaning the soil and large impurity particles carried in the grain at the feeding barrel of the elevator is achieved.

The invention discloses a granary grain elevator which comprises a rack, a chain conveying part arranged on the rack and a plurality of hoppers sequentially arranged along the conveying path of the chain conveying part. The conveying path of the chain conveying part is sequentially divided into a material taking section, a conveying section, a material discharging section and a rotating section. The hopper comprises a first hopper body and a second hopper body which are connected in an inserted mode, a containing cavity is formed between the inner bottom wall of the first hopper body and the outer bottom wall of the second hopper body, the second hopper body is provided with a through hole communicated with the containing cavity, and a movable sealing piece is arranged on the outer bottom wall of the second hopper body. Through cooperation of a special collecting cavity, active screening and fixed-point mechanical discharging, an impurity removal cycle of screening, collecting and discharging is formed in a continuous material lifting path, and therefore lifting and impurity removal integrated operation is achieved.

The utility model discloses a kind of excess material cleaning devices of vibrating grain elevator, it is related to the field of cleaning device, including support vertical pole, support foot support and moving wheel, the support foot support is welded in the lower end of support vertical pole, the moving wheel is movably installed in the lower end of support foot support, the upper end of support vertical pole is fixedly installed with top plate, the outer side of support vertical pole is provided with lifting plate, the upper end of lifting plate is fixedly installed with driving motor, the upper end of lifting plate is fixedly installed with connecting frame outside driving motor. The utility model can make rotating rotary disc to change the inclination angle of cleaning brush, lock connecting sphere after pressing disc is rotated into internal thread ring, ensure that cleaning brush can be closely attached to the curved surface or inclined angle of elevator conveying groove, solve the problem that the existing device sweeps many dead angles, ensure that the height of cleaning brush can be accurately adjusted to adapt to the excess material cleaning demand of different parts of grain elevator.

The utility model provides an airing device for grain processing, which relates to the technical field of airing devices, and comprises a mounting plate, an airing assembly is arranged at the top of the mounting plate, a circulating device is arranged on one side of the top of the mounting plate, a ventilation device is arranged above one side of the airing assembly, and the ventilation device is arranged above the other side of the airing assembly. A feeding device is arranged at the bottom of one side of the airing assembly, and a vibrator is arranged at the top of the airing assembly. Grain is poured into the feeding hopper, enters the airing bin through the feeding port and slides into the feeding groove along with the surface of the collecting hopper, then the forward and reverse motor and the grain elevator are started through an external controller, the transmission shaft and the auger blade are driven to rotate after the forward and reverse motor is started, and the grain in the discharging groove is fed into the feeding pipe. And the grains are conveniently extracted by a grain elevator, fed to the upper part in the airing bin through the connecting pipe, and then slide into the feeding and discharging groove along with the multiple layers of sieve plates, so that the grains do not need to be turned over, and the labor is saved.

A system or method for using a Frequency-Modulated Continuous Wave (FMCW) radar system installed on a harvester for determining yield data, the system or method comprising locating the FMCW radar system on the exterior of a clean grain elevator housing in a fixed location such that a signal may be transmitted into the housing. The signal may be guided by a waveguide and reflected off a surface of a load or the one or more components where the distance to the load or the one or more components is related to one or more properties of the load. The FMCW radar system is configured to use the reflected signal to determine the one or more properties of the load.

A chain guide for a wall of a grain elevator of an agricultural vehicle. The chain guide includes an elongated body. A rib extends from a surface of the elongated body, the rib being configured to engage with a chain of the grain elevator. A mating surface is either formed on or in the body, and the mating surface is configured to be connected to the wall of the grain elevator.

The dust filtering device of the grain elevator comprises a grain distributing box and a dust removing mechanism, a grain conveying mechanism is fixedly arranged at the top end of the grain distributing box, a first supporting frame is fixedly arranged on the periphery of the lower end of the grain distributing box, and a second vibration motor is fixedly arranged on one side of the grain distributing box. A volute fan is fixedly arranged on one side of the dust removal mechanism, a first vibration motor is fixedly arranged on the other side of the dust removal mechanism, a dust removal pipe is fixedly arranged at the position, close to the lower end of the first vibration motor, of the other side of the dust removal mechanism, a collection box is arranged at the bottom end of the dust removal mechanism, and second supporting frames are fixedly arranged on the periphery of the lower end of the dust removal mechanism. The dust removal mechanism comprises a shell. The grain distribution box has the beneficial effects that most dust of grains can be stripped in front of a dust removal system through the grain distribution box, the device is provided with a quick disassembly structure, the filter screen can be disassembled and assembled without tools, and daily cleaning and maintenance are facilitated.

The invention discloses a high-speed Roots blower for a grain elevator, and belongs to the technical field of fluid machinery. In order to solve the problems that an existing fan is disordered in air inlet, lagged in exhaust adjustment, insufficient in heat dissipation and the like, an air inlet rectification assembly (comprising a honeycomb grid and a spiral flow deflector) is arranged to optimize airflow, an exhaust adjustment assembly (adjustable blades and a parallelogram linkage mechanism) is arranged to achieve precise exhaust, and a liquid cooling assembly (an oil cooler and a circulating pump) is forcibly cooled; and a labyrinth sealing system, an axial positioning system and an intelligent temperature control system are integrated. The air inlet efficiency, the adjusting precision and the heat dissipation performance can be improved, and high-speed stable operation is guaranteed. The pneumatic conveying device is suitable for pneumatic conveying of the grain elevator and has the characteristics of high efficiency and high reliability.

The invention discloses a kidney bean picking harvester and a using method thereof. The problems that an existing harvester is large in kidney bean harvesting loss, poor in harvesting quality and insufficient in reliability are solved. According to the design scheme, a soil separating roller, a uniform distributor and a feeding roller are sequentially arranged between a pickup device and a threshing and separating device from front to back in the transverse direction, the soil separating roller is arranged at the rear end of an upper conveying face of the pickup device and attached to the front end of a lower shell of the uniform distributor, and the uniform distributor and the feeding roller are arranged from the low position to the high position. The middle section of the feeding roller corresponds to a feeding opening below the front end of the threshing and separating device, a grain elevator is vertically arranged on the side of the rear section of the cleaning sieve, the wind power impurity removing device is arranged above the rear section of the cleaning sieve, and the lower inlet end of an axial air suction pipe of a suction type high-pressure fan of the wind power impurity removing device covers the sieve surface of the rear section of the cleaning sieve. The device is suitable for picking and harvesting kidney beans.

The utility model belongs to the technical field of grain drying, and particularly relates to variable tempering circulation type grain drying equipment which comprises a grain feeding elevator, a drying machine body, a grain discharging auger and a heat source, and a grain feeding elevator grain inlet is formed in the lower end of the grain feeding elevator; the upper end of the drying machine main body is communicated with a grain outlet of the grain feeding elevator, the drying machine main body comprises at least two tempering sections and at least two drying sections which are alternately arranged up and down, and a grain discharging mechanism located at the bottommost end; a grain outlet auger is located under the grain discharging mechanism, and a grain outlet of the grain outlet auger is communicated with a grain inlet of the grain inlet elevator; the heat source provides hot air for the drying sections, and the variable drying and tempering ratio is achieved by controlling hot air supply of the different drying sections. A fixed drying tempering ratio is changed into a variable drying tempering ratio, the drying efficiency is improved, the drying time is shortened, meanwhile, it is guaranteed that the crack ratio is not increased, and the rice drying quality is guaranteed.

The utility model discloses a grain elevator, which belongs to the technical field of grain processing and comprises a grain elevator body, a screening box is arranged on the side face of the grain elevator body, a grain inlet baffle and a bearing column are arranged on the vertical inner wall of the screening box, and a guide plate is mounted on the periphery of the bearing column. A supporting plate is mounted on the vertical inner wall of the screening box, a second motor is connected to the end, away from the screening box, of the supporting plate, a first connecting shaft is connected to an output shaft of the second motor, a first half cam is mounted at the end, away from the second motor, of the first connecting shaft, and a fan fixing plate is mounted at the bottom of the screening box. A fan is installed in the fan fixing plate, an outlet is formed in the side face of the screening box, and an air outlet pipe is connected to the end, away from the screening box, of the grain feeding baffle. The grain elevator can basically screen grains, impurities and dust contained in the grains can be separated from the grains, the purity of the grains is improved, and the storage environment is purified.

The invention relates to the technical field of optical lens production, and discloses an intelligent material conveying and mixing device for grain deep processing, the intelligent material conveying and mixing device comprises a supporting table, a grain elevator and a discharging bin connected with the grain elevator are arranged on the supporting table, and an impurity removing mechanism is arranged in the discharging bin; a grain uniform feeding mechanism is arranged below the discharging bin, a mixing machine and a bean product feeding mechanism are arranged at the other end of the grain uniform feeding mechanism, the impurity removing mechanism comprises a first motor installed on one side of the discharging bin, a first rotating rod is installed at the output end of the first motor, and a second rotating rod is installed at the output end of the first rotating rod. Two cams are installed on the first rotating rod, and a support is fixedly installed in the discharging bin. The device has the following advantages and effects: automatic integrated impurity treatment can be realized, automatic quantitative mixing is realized, and the feed quality is improved.

The grain elevator convenient to adjust comprises an elevator body, the front end face of the elevator body is movably connected with a control box through a lifting mechanism, a discharging mechanism is installed above the rear end face of the elevator body through a movable rotating mechanism, and the discharging mechanism comprises a telescopic hose A; the outer surface of the telescopic hose A is sleeved with a fixed lantern ring, the rear end face of the telescopic hose A is provided with a telescopic hose B, the rear end face of the telescopic hose B is provided with a discharging pipe, and the front portion of the outer surface of the discharging pipe is sleeved with a rotary lantern ring. The fixed lantern ring is movably connected with the base through two electric push rods, and pin shafts are fixedly installed on the two sides of the outer surface of the rotary lantern ring. The angle and the position of the discharging pipe can be adjusted, the applicability is improved, the height of the control box can be adjusted, and the device is suitable for operators with different heights.

The present application provides a crop yield monitoring method and crop yield monitoring system, wherein the method includes: identifying whether the harvester meets the crop yield monitoring conditions based on the rotation speed of the harvester's grain elevator and the crop flow rate in the grain elevator, wherein the grain elevator is used to lift the crop into the grain transport auger barrel of the harvester; if the harvester meets the crop yield monitoring conditions, receiving the voltage signal of the impulse sensor to obtain the first crop yield data, wherein the impulse sensor is arranged at the top of the grain elevator; correcting the first yield data to obtain the second yield data based on the harvesting status of the harvester's header; displaying the second yield data on the harvester's onboard display terminal, and uploading the second yield data to the cloud platform. Through this application, the accuracy of crop yield monitoring is improved.

The utility model discloses a grain elevator with a deashing function, which relates to the technical field of grain elevators and comprises an elevating frame, a belt connecting shaft is mounted at the middle end of the elevating frame, an elevating belt is mounted at the outer end of the belt connecting shaft, a belt clamping rod is mounted at one end of the elevating belt, and a grain containing frame is mounted at one end of the belt clamping rod. Through the arrangement of the lifting frame, the grain feeding hopper, the upper quantitative roller, the lower quantitative roller, the grain limiting separation net, the fan bearing frame, the dust collection fan and the dust collection net bag, grains needing to be transferred are poured into the grain feeding hopper; then an upper motor and a lower motor are started to respectively drive an upper quantitative roller and a lower quantitative roller to oppositely rotate so as to downwards guide out the grains in the grain feeding hopper at a certain speed, and through the suction effect of a dust collection fan, wind power penetrates through a grain limiting separation net at the rear end to bring dust in the falling grains out of the grain limiting separation net arranged on one side of a fan bearing frame; and the dust enters the dust collection mesh bag and is collected, so that the dust removal efficiency of the equipment on the grains is improved.

The utility model relates to the technical field of grain hoisters, in particular to a grain hoister with an automatic impurity removal function, which comprises a base, the upper end of the base is fixedly connected with a hoister body, the upper part of the rear end of the hoister body is fixedly connected with a discharge port in a penetrating manner, and the upper part of the front end of the base is provided with a window. An exhaust fan is arranged on the inner groove wall of the window, a feeding assembly is fixedly connected to the lower portion of the front end of the elevator body, a motor is fixedly connected to the right portion of the upper end of the base, the output end of the motor is connected with the elevator body in a penetrating mode, a drawing plate is connected to the lower portion of the front end of the elevator body in a penetrating mode, and a drawer is connected to the front end of the base in a penetrating mode. The feeding assembly comprises a feeding frame, and the upper portion of the front end of the feeding frame is fixedly connected with a supporting pipe in a penetrating mode. According to the grain elevator with the automatic impurity removal function, impurities of grains can be conveniently removed in the working process of the grain elevator through the arranged feeding assembly.

A combine harvester including a grain elevator for transporting and elevating harvested grain. The grain elevator includes a paddle loop, a driver, an elevator housing, and a sensor assembly. The paddle loop has a plurality of paddles for carrying the harvested grain. The driver is arranged for driving the paddle loop and thereby moving the paddles upward at a first side of the paddle loop and downward at a second side of the paddle loop. The elevator housing encompasses at least a portion of the paddle loop. The sensor assembly comprises a NIR sensor for detecting properties of the harvested grain and a sensor window arranged for enabling infrared light to travel between the NIR sensor and the harvested grain. The sensor window is embedded in the elevator housing, adjacent the first side of the paddle loop.

The utility model relates to the technical field of grain elevator, in particular to a single-drive hose grain elevator. According to the technical scheme, the screening device comprises a box body and a screening mechanism fixed to the inner wall of the box body, the screening mechanism comprises a primary screening fan fixed to one side of the outer wall of the box body, a fixing plate is fixedly connected to the position, located at the lower end of the primary screening fan, of the inner wall of the box body, and a plurality of first baffles are fixedly connected to the other side, corresponding to the primary screening fan, of the inner wall of the box body; a secondary screening mechanism is arranged at the bottom end of the inner wall of the box body and comprises a second baffle fixed to the bottom end of the fixing plate, a secondary screening fan is fixedly connected to the end, corresponding to the second baffle, of the other side of the inner wall of the box body, and a conveying mechanism is arranged on one side of the outer wall of the box body and comprises a driving motor. The single-drive hose grain elevator has the functions that grains are screened, empty and unqualified rice is removed, the subsequent screening procedure is omitted, and the subsequent procedure is facilitated.

The invention discloses a walking type grain elevator with an arc-shaped suction pipe. The problems that a traditional grain elevator is high in material breaking rate, large in energy consumption, large in noise and the like due to the design of an elbow are solved. According to the grain elevator, the arc-shaped suction pipe section is adopted to replace a traditional elbow, the material conveying path is optimized, collision and friction are reduced, and therefore the material breaking rate is reduced. And meanwhile, flexible adjustment of the suction pipe assembly is achieved through the hydraulic adjusting mechanism, and the adaptability and stability of the equipment are improved. The design of dust removal, closed air conveying and noise reduction is integrated, and the efficient and environment-friendly grain conveying effect is ensured.

The utility model provides a grain lifting system and a harvester, relates to the technical field of agricultural equipment, and aims to solve the problem that the harvester cannot continue to work in certain specific height-limited plots in a cover closing state to a certain extent. The utility model provides a grain lifting system which is used for a harvester and comprises a lifting mechanism, a transmission mechanism, a grain lifting cylinder assembly and a linkage mechanism. The feeding end of the lifting mechanism is located outside a material box of the harvester, the discharging end of the lifting mechanism is located in the material box and connected with one end of the transmission mechanism, the grain lifting barrel assembly is rotationally connected with the other end of the transmission mechanism, one end of the linkage mechanism is connected with a turning cover of the material box, and the other end of the linkage mechanism is connected with the outer wall of the grain lifting barrel assembly.

This utility model discloses a grain elevator for grain drying, comprising: a drying mechanism body, with two mounting frames inside the drying mechanism body, each mounting frame having a conveyor wheel on its inner wall, and a belt fitted around the outer wall of each conveyor wheel; and further comprising: a turning component, disposed on both sides of the inner wall of the drying mechanism body, and having multiple components, for turning the grain conveyed on the belt; a conveying component, disposed on the edge of the belt, for driving the turning component to rotate; and an air pump disposed on one side wall of the drying mechanism body, with an input end of the air pump connected to an air supply pipe, one end of which penetrates the upper surface of the drying mechanism body and extends into its interior. This utility model utilizes the rotation of the belt to drive the toothed belt to rotate, which in turn drives the gears to rotate, causing a fan plate above the conveyor belt to turn the grain on the belt, thereby dispersing dust and debris from the grain. The air pump and the air supply pipe work together to remove the dust and debris from the grain.

The application discloses a low-breakage-rate grain conveying elevator, and relates to the technical field of grain conveying, which comprises a support, a closing mechanism for reducing grain falling is arranged above the support, a lifting mechanism for conveying grain to a high place is arranged at the top of the support, a limiting mechanism is arranged in the closing mechanism, a protection mechanism for reducing grain entering the interior of the elevator is arranged at the top of the support, and a knocking mechanism for reducing the gap of the grain is arranged in the closing mechanism. When the grain is lifted, the top of the shovel is closed by two arc-shaped plates, a relatively closed loading space is formed, the grain is effectively prevented from spilling due to vibration or inertial effect in the lifting process, material loss and environmental pollution are reduced, the closing mechanism can block the overflow of the grain, the grain is difficult to contact the roller area, the situation that the grain is crushed is greatly reduced, the breakage rate is significantly reduced, and the quality of the grain finished product is improved.

The adjustable suction nozzle comprises a grain suction inner cylinder and an air suction outer cylinder which are coaxially arranged, and an annular air channel is formed between the grain suction inner cylinder and the air suction outer cylinder. The width of the channel can be accurately adjusted through the adjusting bolts, and airflow uniformity is maintained in cooperation with the self-adaptive deformation flexible adjusting plate. A conical flow guide opening and a detachable filter screen are arranged at the bottom of the grain suction inner cylinder, grain flowing is effectively guided, and blocking is prevented. The grain collecting device is simple and reliable in structure, capable of remarkably improving grain collecting efficiency and reducing energy consumption and widely applied to operation scenes such as grain storage and port loading and unloading.