阅读说明：本技术 粮食翻晒机 (Grain tedder ) 是由 王彬 徐建高 于云峰 于 2021-09-25 设计创作，主要内容包括：本发明公开了一种粮食翻晒机,属于农业机械设备技术领域,粮食翻晒机,包括驱动电机和机架,驱动电机为本设备的动力来源,用于驱动机架的前进和后退,所述的驱动电机安装于机架上,机架用于支撑整个设备,所述的驱动电机与PLC板相连接,所述的PLC板与驱动电机相连接,所述的PLC板与控制开关相连接,其中PLC板位于机架内,所述的PLC板与电源相连接,电源为可充电电源,电源安装于机架内,所述的驱动电机的输出轴上设有驱动轮,驱动轮用于驱动被动轮旋转。解决了现有设备功耗高、成本高和翻晒效率差的技术问题,主要应用于晒场粮食翻晒。(The invention discloses a grain tedder, which belongs to the technical field of agricultural mechanical equipment and comprises a driving motor and a rack, wherein the driving motor is a power source of the equipment and is used for driving the rack to move forward and backward, the driving motor is arranged on the rack and is used for supporting the whole equipment, the driving motor is connected with a PLC (programmable logic controller) board, the PLC board is connected with the driving motor and is connected with a control switch, the PLC board is positioned in the rack and is connected with a power supply, the power supply is a rechargeable power supply and is arranged in the rack, a driving wheel is arranged on an output shaft of the driving motor, and the driving wheel is used for driving a driven wheel to rotate. The technical problems of high power consumption, high cost and poor tedding efficiency of the existing equipment are solved, and the equipment is mainly applied to grain tedding in a sunning ground.)

1. Grain tedder, including driving motor (1) and frame (12), driving motor (1) install in frame (12), driving motor (1) be connected with PLC board (14), PLC board (14) be connected with driving motor (1), PLC board (14) be connected with control switch (15), PLC board (14) be connected with power (13), the output shaft of driving motor (1) on be equipped with drive wheel (1-1), its characterized in that: the automatic transmission device is characterized in that symmetrical spiral conveying devices are further arranged inside the rack (12), each spiral conveying device comprises a first rotating shaft (1-2-1), an outer cover (11) and spiral conveying blades (11-1), the spiral conveying blades (11-1) are arranged on the first rotating shaft (1-2-1), the spiral conveying blades (11) are movably mounted in the outer cover (11), the left side of the first rotating shaft (1-2-1) is fixedly connected with a first driven wheel (1-2), the first driven wheel (1-2) is connected with a driving wheel (1-1) through a belt, the first driven wheel (1-2) is respectively connected with a second driven wheel (1-3) and a third driven wheel (1-4) through a belt, and the third driven wheel (1-4) is fixedly connected with the second rotating shaft (4-1), a first bevel gear (4-3) is fixedly arranged on the second rotating shaft (4-1), the first bevel gear (4-3) is meshed with a reduction gear (4-2), the reduction gear (4-2) is movably arranged in a gear box (4) through a third rotating shaft (4-4), the gear box (4) is positioned in a rack (12), the reduction gear (4-2) is connected with a gear (6-1-1) through a chain, a chain cover is arranged outside the chain, the gear (6-1-1) is arranged on a wheel shaft (6-1), two sides of the wheel shaft (6-1) are respectively connected with a front wheel (6), the wheel shaft (6-1) is movably arranged in a collection bin (7), wherein a blocking cover (6-1-2) is arranged on the wheel shaft (6-1), the left side of the outer cover (11) is provided with a baffle (12), the upper part of the outer cover (11) is provided with a blanking port (11-3), a feeding port (7-1) is reserved between the two outer covers (11), the frame (12) is internally provided with a material distribution bin (5), the material distribution bin (5) is internally provided with a symmetrical conical material distributor (8), the lower part of the conical material distributor (8) is provided with an elastic rod (8-2), the elastic rod (8-2) is movably arranged on a fixed plate (5-1) in the middle of the material distribution bin (5), two sides of the fixed plate (5-1) are respectively provided with a first discharge port (5-3) and a second discharge port (5-4), the right side of the outer cover (11) is provided with a discharge port, and the discharge port is positioned above the conical material distributor (8), the automatic feeding device is characterized in that a connecting plate (5-2) is further arranged on the rack (12), the connecting plate (5-2) is movably connected with the dragging plate (9) through a movable shaft, a handrail (2) is further arranged on the rack (12), a speed controller (2-1) and a brake (2-1-1) are further arranged on the handrail (2), the speed controller (2-1) is connected with a PLC (programmable logic controller) board (14), outward-opening push plates (3) are arranged on two sides of the collecting bin (7), and symmetrical rear wheels (9-1) are arranged on the dragging plate (9).

2. The grain tedder according to claim 1, characterized in that the material distribution bin (5) is further provided with symmetrical doors (10), the doors (10) are further provided with handles (10-1), the inner side of each door (10) is provided with an adsorption magnet, and the upper part of each door (10) is provided with a magnetic component (16).

3. The grain tedder according to claim 1, characterized in that the carriage (9) is further provided with distributing teeth (9-2).

4. The grain tedder according to claim 1, characterized in that the two ends of the push plate (3) are respectively provided with a sliding chute (3-1), and the sliding chute (3-1) is provided with a front push plate (3-2).

5. The grain tedder of claim 1, wherein: the conical distributor (8) is provided with material distributing plates (8-1) which are arranged in equal proportion.

Technical Field

The invention belongs to the technical field of agricultural machinery, and particularly relates to a grain tedder.

Background

201820156824.1 discloses an agricultural grain tedding device, which comprises: tractor body, leading grain merge device, rearmounted grain sharing device and haulage rope, tractor body left end are equipped with leading grain and merge the device, and the tractor body right-hand member is equipped with rearmounted grain sharing device, and leading grain merges and is connected with the haulage rope between device and the rearmounted grain sharing device, and the tractor body includes: front wheel, rear wheel, front wheel are located tractor body left part, and tractor body right-hand member is equipped with rear wheel and lift arm, and leading grain merger device includes: preceding mounting bracket, first pulley, second pulley, preceding support arm, front column, grain close board and spring, preceding mounting bracket is installed at tractor body left end. The grain combining plate at the front part of the tractor body folds grains in front of the tires at two sides to the middle part, and the grain distributing plate is used at the back part to separate the folded grains, so that the effect of turning over the grains is achieved, and the grains cannot be crushed by the tires. However, the above patents have the following drawbacks: the equipment has large energy consumption, high production cost, large whole equipment, high power consumption and inconvenient turning during the use process; although the grain combining plate at the front part of the tractor body combines grains in front of the tires at two sides to the middle part, in the practical application process, the grains in front of the tires cannot be cleaned, a layer of thin grains still remains, and the grains are naturally crushed when large-scale equipment presses on the thin grains; 3 in the in-process of actually tedding, grain can't obtain fully tedding, above-mentioned patent equipment merges grain earlier, then with grain separately, the effect of tedding has been seen on the surface, but at the in-process of in-service use, only crowd the upper strata with the grain on both sides, then from the middle part separately, a process that at last through the planker levelled, the grain of mid portion still does not obtain comprehensive tedding at the in-process of tedding, we need a section manufacturing cost lower, the consumption is lower, and can let grain obtain the equipment of comprehensive tedding.

Disclosure of Invention

In order to at least solve the technical problems in the background technology, the invention provides a grain tedder, which adopts the following technical scheme:

grain tedder, including driving motor and frame, driving motor is the power source of this equipment for the advancing and retreating of drive frame, driving motor install in the frame, the frame is used for supporting whole equipment, driving motor be connected with the PLC board, the PLC board be connected with driving motor, the PLC board be connected with control switch, wherein the PLC board is located the frame, the PLC board be connected with the power, the power is chargeable call, the power is installed in the frame, driving motor's output shaft on be equipped with the drive wheel, the drive wheel is used for driving driven wheel rotation.

The grain separating and feeding device comprises a rack, and is characterized in that symmetrical spiral conveying devices are further arranged in the rack and used for conveying grains to a separating bin from left to right, each spiral conveying device comprises a first rotating shaft, an outer cover and spiral conveying blades, the first rotating shaft is provided with the spiral conveying blades, the spiral conveying blades are movably mounted in the outer cover, the left side of each rotating shaft is fixedly connected with a first driven wheel, the first driven wheel is connected with a driving wheel through a belt, the first driven wheel is respectively connected with a second driven wheel and a driven wheel through belts, a third driven wheel is fixedly connected with a second rotating shaft, a first bevel gear is fixedly mounted on the second rotating shaft and meshed with a reduction gear, the reduction gear is movably mounted in a gear box through the third rotating shaft, the gear box is positioned in the rack, and the reduction gear is connected with a gear through a chain, the chain is externally provided with a chain cover, the gear is arranged on a wheel shaft, two sides of the wheel shaft are respectively connected with the front wheel, the front wheel is a driving wheel of the whole equipment and is used for driving a vehicle to move forward or backward, the wheel shaft is movably arranged in the collection bin, the wheel shaft is provided with a shielding cover which is used for preventing grains from contacting with the wheel shaft, the left side of the outer cover is provided with a baffle which is obliquely arranged, so that the baffle can be used for sliding materials from top to bottom into a blanking port of the outer cover, the upper part of the outer cover is provided with a blanking port which is used for conveying the grains rightwards by a spiral blade in the outer cover, a feeding port is reserved between the two outer covers and is used for conveying the grains in the collection bin from bottom to top, a distribution bin is also arranged in the frame and is used for discharging the grains after being dispersed and mixed, the material distributing bin is internally provided with symmetrical conical material distributors, the lower part of each conical material distributor is provided with an elastic rod, the elastic rods are movably arranged on a fixed plate in the middle of the material distributing bin, the elastic movable rods are used for up-and-down vibration of the conical material distributors, the conical material distributors are used for dispersing grains on one hand and guaranteeing the circulation of the grains in the material distributing bin in a mode of up-and-down vibration on the other hand, two sides of the fixed plate are respectively provided with a first discharge port and a second discharge port which are opposite, the discharge ports are designed in such a way that the grains can be mixed once again to fully mix the grains, the right side of the outer cover is provided with a discharge port which is communicated with the material distributing bin, the discharge ports are positioned above the conical material distributors, the rack is also provided with a connecting plate, the connecting plate is movably connected with the planker through a movable shaft, and the rack is also provided with handrails, the handrail on still be equipped with speed controller and brake, speed controller is used for controlling the rotational speed of motor and controls the speed of marcing of vehicle, speed controller be connected with the PLC board, the both sides of collecting the storehouse be equipped with the push pedal of external-open, the push pedal is "eight" form and installs in the both sides of frame, wherein the collecting bin is located the lower part of frame and the front portion of collecting the storehouse and has seted up the feed inlet and be used for the feeding, the planker on be equipped with symmetrical rear wheel, the planker is used for floating grain once more.

Preferably: in order to ensure that the equipment has the function of collecting grains, symmetrical doors are further arranged on the material distribution bin, a handle is further arranged on each door, an adsorption magnet is arranged on the inner side of each door, a magnetic part is arranged on the upper portion of each door, when grains need to be collected, a matched pipeline needs to be communicated with a spiral conveying pipeline inside the rack, then a pocket is sleeved on the matched pipeline, when the equipment works, the door needs to be opened firstly, the door is turned upwards and adsorbed on the magnetic part, the matched pipeline is sleeved on the spiral conveying pipeline to form discharging, the opening end of the pocket is sleeved on the spiral conveying pipeline, and the bottom of the pocket is placed on the carriage, so that the equipment can contain two grains at one time.

Preferably: in order to increase the tedding effect, the carriage is also provided with a distributing gear which is used for dividing the floating grains into furrow ridges, so that the grain has wider contact area with the exposure and better tedding effect.

Preferably: in order to make the function of this equipment diversified more, the both ends of push pedal be equipped with the spout respectively, the spout be equipped with preceding push pedal, preceding push pedal is used for collecting the grain of dispersion and piles, lets grain tomorrow continue to be put and shine, preceding push pedal can also be used for collecting the grain of piling and put and shine, put and shine fast, the effect preferred.

Preferably: in order to make the material distributing effect of the conical material distributor better, material distributing plates which are arranged in equal proportion are arranged on the conical material distributor.

The invention has the following advantages: the invention has the advantages of light frame design, light overall weight and convenient operation, obviously improves the tedding effect by mixing grains for many times, improves the material mixing uniformity to the maximum degree by the material convection design, improves the material mixing effect, does not improve the power consumption of the overall machine tool, ensures that the grain discharging process is more uniform and the grain tedding effect is obvious by the design of the conical distributor, is not only suitable for large-scale sunning grounds but also suitable for small-scale sunning grounds of families, has flexible operation, does not cause the grain crushing process due to lighter weight, and is suitable for comprehensive popularization and application.

Drawings

FIG. 1 is an internal structural view of the grain tedder of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1A;

FIG. 3 is a first top view of the grain tedder of the present invention;

FIG. 4 is a partial enlarged view of FIG. 3B;

FIG. 5 is a second top view of the grain tedder of the present invention;

FIG. 6 is a partial enlarged view of FIG. 5C;

fig. 7 is a using state diagram of the grain tedder.

Detailed Description

Example 1

As shown in fig. 1-4:

grain tedder, including driving motor 1 and frame 12, driving motor 1 installs in frame 12, and driving motor 1 is connected with PLC board 14, and PLC board 14 is connected with driving motor 1, and PLC board 14 is connected with control switch 15, and PLC board 14 is connected with power 13, and one side of driving motor 1 is equipped with drive wheel 1-1, its characterized in that: the inside of the frame 12 is also provided with symmetrical spiral conveying devices, each spiral conveying device comprises a first rotating shaft 1-2-1, an outer cover 11 and a spiral conveying blade 11-1, the spiral conveying blade 11-1 is arranged on the first rotating shaft 1-2-1, the spiral conveying blade 11 is movably arranged in the outer cover 11, the left side of the first rotating shaft 1-2-1 is fixedly connected with a first driven wheel 1-2, the first driven wheel 1-2 is connected with a driving wheel 1-1 through a belt, the first driven wheel 1-2 is respectively connected with a second driven wheel 1-3 and a third driven wheel 1-4 through belts, the third driven wheel 1-4 is fixedly connected with a second rotating shaft 4-1, a first bevel gear 4-3 is fixedly arranged on the second rotating shaft 4-1, and the first bevel gear 4-3 is meshed with a reduction gear 4-2, a reduction gear 4-2 is movably arranged in a gear box 4 through a rotating shaft III 4-4, the gear box 4 is positioned in a frame 12, the reduction gear 4-2 is connected with a gear 6-1-1 through a chain, a chain cover is arranged outside the chain, the gear 6-1-1 is arranged on a wheel axle 6-1, two sides of the wheel axle 6-1 are respectively connected with a front wheel 6, the wheel axle 6-1 is movably arranged in a collection bin 7, wherein the wheel axle 6-1 is provided with a shielding cover 6-1-2, the left side of an outer cover 11 is provided with a baffle 12, the outer cover 11 is provided with a blanking port 11-3, a feeding port 7-1 is reserved between the two outer covers 11, a material distribution bin 5 is also arranged in the frame 12, symmetrical conical material distributors 8 are arranged in the material distribution bin 5, and elastic rods 8-2 are arranged at the lower parts of the conical material distributors 8, the elastic rod 8-2 is movably arranged on a fixed plate 5-1 in the middle of the material distribution bin 5, two sides of the fixed plate 5-1 are respectively provided with a first discharge port 5-3 and a second discharge port 5-4 which are opposite, the right side of the outer cover 11 is provided with a discharge port which is positioned above the conical material distributor 8, a frame 12 is also provided with a connecting plate 5-2, the connecting plate 5-2 is movably connected with a dragging plate 9 through a movable shaft, the frame 12 is also provided with a handrail 2, the handrail 2 is also provided with a speed controller 2-1 and a brake 2-1-1, the speed controller 2-1 is connected with a PLC (programmable logic controller) board 14, two sides of the collection bin 7 are provided with outward-opened pushing plates 3, the dragging plate 9 is provided with symmetrical rear wheels 9-1, and the dragging plate 9 is also provided with material distribution teeth 9-2.

The working principle of the invention is as follows: when only grain is tedded, firstly, the power switch 17 is started, a person stands on the planker 9, controls the left and right movement of the whole equipment by controlling the left and right movement of the handrail 2 with a hand, only needs to move the equipment to a tedding field needing to tedding grain, and starts the machine to uniformly walk on the field for a circle until the whole sunning field is completely tedded. The grain firstly enters a collecting bin 7 at the lower part of a frame, slowly rises in the collecting bin 7, moves upwards from a feeding port 7-1 in the middle of a spiral conveying device, then enters a blanking port 11-3 of the spiral conveying device, is conveyed rightwards to a conical distributor 8 of a distributing bin 5 through a spiral conveying blade, is distributed by the conical distributor 8 and then comes out from a discharge port I5-3 and a discharge port II 5-4 at the lower part of the distributing bin, the discharge port I5-3 and the discharge port II 5-4 are designed to be relatively close to each other, so that the grain forms convection mixing in the discharging process, is dragged to be flat through a dragging plate 9 after coming out from the discharge port I5-3 and the discharge port II 5-4, and is finally separated through a distributing gear 9-2 at the lower part of the dragging plate to form a furrow shape.

Example 2

As shown in fig. 5-7:

grain tedder, including driving motor 1 and frame 12, driving motor 1 installs in frame 12, and driving motor 1 is connected with PLC board 14, and PLC board 14 is connected with driving motor 1, and PLC board 14 is connected with control switch 15, and PLC board 14 is connected with power 13, and one side of driving motor 1 is equipped with drive wheel 1-1, its characterized in that: the inside of the frame 12 is also provided with symmetrical spiral conveying devices, each spiral conveying device comprises a first rotating shaft 1-2-1, an outer cover 11 and a spiral conveying blade 11-1, the spiral conveying blade 11-1 is arranged on the first rotating shaft 1-2-1, the spiral conveying blade 11 is movably arranged in the outer cover 11, the left side of the first rotating shaft 1-2-1 is fixedly connected with a first driven wheel 1-2, the first driven wheel 1-2 is connected with a driving wheel 1-1 through a belt, the first driven wheel 1-2 is respectively connected with a second driven wheel 1-3 and a third driven wheel 1-4 through belts, the third driven wheel 1-4 is fixedly connected with a second rotating shaft 4-1, a first bevel gear 4-3 is fixedly arranged on the second rotating shaft 4-1, and the first bevel gear 4-3 is meshed with a reduction gear 4-2, a reduction gear 4-2 is movably arranged in a gear box 4 through a rotating shaft III 4-4, the gear box 4 is positioned in a frame 12, the reduction gear 4-2 is connected with a gear 6-1-1 through a chain, a chain cover is arranged outside the chain, the gear 6-1-1 is arranged on a wheel axle 6-1, two sides of the wheel axle 6-1 are respectively connected with a front wheel 6, the wheel axle 6-1 is movably arranged in a collection bin 7, wherein the wheel axle 6-1 is provided with a shielding cover 6-1-2, the left side of an outer cover 11 is provided with a baffle 12, the outer cover 11 is provided with a blanking port 11-3, a feeding port 7-1 is reserved between the two outer covers 11, a material distribution bin 5 is also arranged in the frame 12, symmetrical conical material distributors 8 are arranged in the material distribution bin 5, and elastic rods 8-2 are arranged at the lower parts of the conical material distributors 8, the elastic rod 8-2 is movably arranged on a fixed plate 5-1 in the middle of the material distribution bin 5, two sides of the fixed plate 5-1 are respectively provided with a first discharge port 5-3 and a second discharge port 5-4 which are opposite, the right side of the outer cover 11 is provided with a discharge port which is positioned above the conical material distributor 8, a frame 12 is also provided with a connecting plate 5-2, the connecting plate 5-2 is movably connected with a dragging plate 9 through a movable shaft, the frame 12 is also provided with a handrail 2, the handrail 2 is also provided with a speed controller 2-1 and a brake 2-1-1, the speed controller 2-1 is connected with a PLC (programmable logic controller) board 14, two sides of the collection bin 7 are provided with outward-opened pushing plates 3, the dragging plate 9 is provided with symmetrical rear wheels 9-1, and the dragging plate 9 is also provided with material distribution teeth 9-2.

The working principle of the invention is as follows: when the grain collecting machine is used for collecting grains, the symmetrical doors 10 are further arranged on the distributing bin 5, the handles 10-1 are further arranged on the doors 10, the inner sides of the doors 10 are provided with the adsorption magnets, the magnetic parts 16 are arranged on the upper portions of the doors 10, when the grains need to be collected, the matched pipelines need to be communicated with the spiral conveying pipelines inside the machine frame, then the pockets are sleeved on the matched pipelines, when the grain collecting machine works, the doors 5 need to be opened firstly, the doors 5 are turned upwards and adsorbed on the magnetic parts 16, the matched pipelines are sleeved on the spiral conveying pipelines to form discharging, the opening ends of the pockets are sleeved on the matched pipelines, the bottoms of the pockets are placed on the carriage 9, the grain collecting machine can be used for loading two bags of grains once, after the grains are loaded, the machine is stopped, the pockets are replaced, the circulation operation can be continued, the power switch 17 is started, and people stand on the carriage 9, the left and right movement of the handrail 2 is controlled by hands to control the left and right movement of the whole equipment, the equipment is only required to be moved to a tedding field needing to tedding grains, and machines are started to uniformly walk on the field to collect the grains.

Example 3

As shown in fig. 1-7:

grain tedder, including driving motor 1 and frame 12, driving motor 1 installs in frame 12, and driving motor 1 is connected with PLC board 14, and PLC board 14 is connected with driving motor 1, and PLC board 14 is connected with control switch 15, and PLC board 14 is connected with power 13, and one side of driving motor 1 is equipped with drive wheel 1-1, its characterized in that: the inside of the frame 12 is also provided with symmetrical spiral conveying devices, each spiral conveying device comprises a first rotating shaft 1-2-1, an outer cover 11 and a spiral conveying blade 11-1, the spiral conveying blade 11-1 is arranged on the first rotating shaft 1-2-1, the spiral conveying blade 11 is movably arranged in the outer cover 11, the left side of the first rotating shaft 1-2-1 is fixedly connected with a first driven wheel 1-2, the first driven wheel 1-2 is connected with a driving wheel 1-1 through a belt, the first driven wheel 1-2 is respectively connected with a second driven wheel 1-3 and a third driven wheel 1-4 through belts, the third driven wheel 1-4 is fixedly connected with a second rotating shaft 4-1, a first bevel gear 4-3 is fixedly arranged on the second rotating shaft 4-1, and the first bevel gear 4-3 is meshed with a reduction gear 4-2, a reduction gear 4-2 is movably arranged in a gear box 4 through a rotating shaft III 4-4, the gear box 4 is positioned in a frame 12, the reduction gear 4-2 is connected with a gear 6-1-1 through a chain, a chain cover is arranged outside the chain, the gear 6-1-1 is arranged on a wheel axle 6-1, two sides of the wheel axle 6-1 are respectively connected with a front wheel 6, the wheel axle 6-1 is movably arranged in a collection bin 7, wherein the wheel axle 6-1 is provided with a shielding cover 6-1-2, the left side of an outer cover 11 is provided with a baffle 12, the outer cover 11 is provided with a blanking port 11-3, a feeding port 7-1 is reserved between the two outer covers 11, a material distribution bin 5 is also arranged in the frame 12, symmetrical conical material distributors 8 are arranged in the material distribution bin 5, and elastic rods 8-2 are arranged at the lower parts of the conical material distributors 8, the elastic rod 8-2 is movably arranged on a fixed plate 5-1 in the middle of the material distribution bin 5, two sides of the fixed plate 5-1 are respectively provided with a first discharge port 5-3 and a second discharge port 5-4 which are opposite, the right side of the outer cover 11 is provided with a discharge port which is positioned above the conical material distributor 8, a frame 12 is also provided with a connecting plate 5-2, the connecting plate 5-2 is movably connected with a carriage 9 through a movable shaft, the frame 12 is also provided with a handrail 2, the handrail 2 is also provided with a speed controller 2-1 and a brake 2-1-1, the speed controller 2-1 is connected with a PLC (programmable logic controller) plate 14, two sides of the collection bin 7 are provided with outward-opened push plates 3, the carriage 9 is provided with symmetrical rear wheels 9-1, the carriage 9 is also provided with material distribution teeth 9-2, two ends of the push plates 3 are respectively provided with a sliding chute 3-1, the sliding groove 3-1 is provided with a front push plate 3-2.

The working principle of the invention is as follows: when the grain is collected into the stacks by the design, the push plate 3-2 of the device needs to be arranged in the chute 3-1 to collect the grain, the grain can be collected from the outer edge of the sunning ground to the middle by using the device, after the collection is finished, the grain stacks only need to be pushed away from the middle to the outside when the grain stacks need to be placed and aired next day, after the grain is pushed away, the push plate 3-2 is unloaded from the chute 3-1, and finally the tedding operation of the embodiment 1 is carried out, so that the grain is uniformly spread.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.