阅读说明：本技术 一种谷物加工设备 (Grain processing equipment ) 是由 裘欢欢 简一 于 2021-08-31 设计创作，主要内容包括：本发明属于谷物晾晒领域,尤其涉及一种谷物加工设备,它包括底座、滑杆、复位弹簧、支撑块、圆销、摆座、导杆、晾晒机构、方杆、螺杆,其中摆座通过两个可拆卸的圆销铰接于底座上的两个支耳之间；本发明中的晾晒机构中的晾晒板在方杆驱动下绕摆轴摆动至其与水平面夹角小于谷物堆积自流角的角度来保证晾晒与晾晒板上的谷物可以最大限度地停留其上进行晾晒。多层晾晒机构的等量的谷物晾晒大大地节省了谷物晾晒所在的场地面积,保证用较小的场地面积晾晒较多的谷物,提高场地的利用率和谷物的单次晾晒量。(The invention belongs to the field of grain airing, and particularly relates to grain processing equipment which comprises a base, a sliding rod, a return spring, a supporting block, a round pin, a swing seat, a guide rod, an airing mechanism, a square rod and a screw rod, wherein the swing seat is hinged between two support lugs on the base through two detachable round pins; the airing plate in the airing mechanism swings around the swing shaft under the drive of the square rod to an angle smaller than the grain accumulation free-flowing angle with the horizontal plane, so that grains on the airing plate and the airing plate can be kept on the airing plate to the maximum extent for airing. The equivalent cereal sunning of multilayer sunning mechanism has saved the area of cereal sunning place widely, guarantees to use the more cereal of less area sunning, improves the utilization ratio in place and the single sunning volume of cereal.)

1. A grain processing apparatus, characterized by: the airing device comprises a base, a sliding rod, a return spring, a supporting block, round pins, a swing seat, a guide rod, an airing mechanism, a square rod and a screw rod, wherein the swing seat is hinged between two support lugs on the base through two detachable round pins; sliding rods slide in two sliding chutes A on the base along the direction parallel to the central axis of the round pin respectively, and each sliding chute A is provided with a return spring for returning the corresponding sliding rod; each sliding rod is provided with a plurality of supporting blocks which are uniformly distributed along the axial direction of the round pin and limit the swing of the swing seat around the round pin; the supporting block on each sliding rod is correspondingly matched with a row of movable grooves on the corresponding side of the bottom of the swing seat one by one; the middle part of the swing seat is vertically matched with a plurality of layers of airing mechanisms for providing airing fields for grains in a sliding way on the two guide rods which are axially distributed along the round pin at intervals; vertical screw rods and vertical square rods which are distributed at intervals along the axial direction of the round pin are rotationally matched between the connecting rod for connecting the upper ends of the two guide rods and the swing seat;

the airing mechanism comprises a support bar, a swing shaft, an airing plate, a worm wheel and a gear, wherein the support bar parallel to the round pin vertically slides on the two guide rods; a worm is rotatably matched in the circular groove G on the supporting bar and meshed with a worm wheel arranged on a swing shaft; the through square groove on the worm is in axial sliding fit with the square rod, and the circular groove F on the supporting bar is in fit with the screw; two sides of the supporting bar are respectively hinged with airing plates for providing airing fields for grains through swing shafts parallel to the round pins, and the two airing plates are symmetrically distributed; two ends of each pendulum shaft are respectively provided with a gear, and two gears at the same side end of the two pendulum shafts are meshed with each other;

the drying plates in the lowermost drying mechanisms are in clearance fit with the arc surfaces on one sides of the corresponding supporting bars around the corresponding swing shafts, and a leakage groove for facilitating grain leakage is formed between the drying plates in the non-lowermost drying mechanisms and the corresponding sides of the corresponding supporting bars; the circular groove F of the supporting bar in the topmost airing mechanism is in threaded fit with the screw, and the circular groove F of the supporting bar in the non-topmost airing mechanism is in axial clearance fit with the screw; the supporting bars of two adjacent airing mechanisms are connected through connecting ropes with equal length.

2. The grain processing apparatus of claim 1, wherein: two inclined plates for guiding grains to enter the leakage grooves are symmetrically arranged at the leakage grooves of the two airing plates of the airing mechanism at the uppermost end; an elastic side baffle A for preventing grains from leaking is arranged between the same side ends of the two inclined plates; two inclined rain shelters for guiding rainwater to the two sides of the airing mechanism are symmetrically arranged on the outer sides of the two inclined plates; an elastic side baffle B is arranged between the same side ends of the two rain shelters.

3. The grain processing apparatus of claim 1, wherein: the two sliding chutes B at the two ends of the supporting bar are respectively in sliding fit with the two guide rods; the return spring is positioned in the circular groove A on the end wall of the corresponding sliding groove A; one end of the reset spring is connected with the inner wall of the circular groove A, and the other end of the reset spring is connected with the end face of the corresponding sliding rod; one end of each sliding rod is provided with a pull ring.

4. The grain processing apparatus of claim 1, wherein: four universal wheels are symmetrically arranged at the bottom of the base; the two guide rods are arranged on the bulges which are arranged in the middle of the swing seat and used for increasing the downward swing amplitude of the two airing plates in the bottom airing mechanism around the corresponding swing shafts respectively; the screw rod is in rotating fit with the circular groove B on the swing seat and the circular groove D on the connecting rod; the square rod is in rotating fit with the circular groove C on the swing seat and the circular groove E on the connecting rod; the upper end of the square rod is provided with a manual crank A, and the upper end of the screw rod is provided with a manual crank B.

5. The grain processing apparatus of claim 1, wherein: the base is provided with a detachable wind shield which encloses all the airing mechanisms; the upper end of the base is provided with two abdicating inclined planes which are symmetrically distributed and respectively increase the swinging amplitude of the corresponding side airing plate in the airing mechanism at the lowest end around the corresponding swinging shaft.

Technical Field

The invention belongs to the field of grain airing, and particularly relates to grain processing equipment.

Background

The grains in some small grain stations can be pulled out from the grain depot for airing after being stored for a period of time, so that the grains are prevented from mildewing due to moisture when being stored in the grain depot for a long time. In the conventional airing, grains are generally spread on an airing field manually or mechanically, and the grains spread on the ground are dehydrated or aired by sunlight and natural wind. However, the conventional grain airing method requires a large space to improve airing efficiency, has a high requirement on the size of the airing space, and has a high requirement on weather. If not adopt high traditional place sunning mode to go on removing the tide or the dehydration to cereal, then need use electric power to dry cereal, this mode is more power consumptive, and the cost is higher.

The invention designs a grain processing device which is necessary to air-dry or dewater grains by sunshine and natural wind in a small place.

Disclosure of Invention

In order to solve the defects in the prior art, the invention discloses grain processing equipment which is realized by adopting the following technical scheme.

In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention conventionally use, which are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, or be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

A grain processing device comprises a base, a slide bar, a return spring, a supporting block, a round pin, a swing seat, a guide rod, a drying mechanism, a square rod and a screw rod, wherein the swing seat is hinged between two support lugs on the base through two detachable round pins; sliding rods slide in two sliding chutes A on the base along the direction parallel to the central axis of the round pin respectively, and each sliding chute A is provided with a return spring for returning the corresponding sliding rod; each sliding rod is provided with a plurality of supporting blocks which are uniformly distributed along the axial direction of the round pin and limit the swing of the swing seat around the round pin; the supporting block on each sliding rod is correspondingly matched with a row of movable grooves on the corresponding side of the bottom of the swing seat one by one; the middle part of the swing seat is vertically matched with a plurality of layers of airing mechanisms for providing airing fields for grains in a sliding way on the two guide rods which are axially distributed along the round pin at intervals; vertical screw rods and vertical square rods which are distributed at intervals along the axial direction of the round pin are rotationally matched between the connecting rod for connecting the upper ends of the two guide rods and the swing seat.

The airing mechanism comprises a support bar, a swing shaft, an airing plate, a worm wheel and a gear, wherein the support bar parallel to the round pin vertically slides on the two guide rods; a worm is rotatably matched in the circular groove G on the supporting bar and meshed with a worm wheel arranged on a swing shaft; the through square groove on the worm is in axial sliding fit with the square rod, and the circular groove F on the supporting bar is in fit with the screw; two sides of the supporting bar are respectively hinged with airing plates for providing airing fields for grains through swing shafts parallel to the round pins, and the two airing plates are symmetrically distributed; gears are mounted at two ends of each swing shaft, and the two gears at the same side ends of the two swing shafts are meshed with each other.

The drying plates in the lowermost drying mechanisms are in clearance fit with the arc surfaces on one sides of the corresponding supporting bars around the corresponding swing shafts, and a leakage groove for facilitating grain leakage is formed between the drying plates in the non-lowermost drying mechanisms and the corresponding sides of the corresponding supporting bars; the circular groove F of the supporting bar in the topmost airing mechanism is in threaded fit with the screw, and the circular groove F of the supporting bar in the non-topmost airing mechanism is in axial clearance fit with the screw; the supporting bars of two adjacent airing mechanisms are connected through connecting ropes with equal length.

As a further improvement of the technology, two inclined plates for guiding grains to enter the leakage grooves are symmetrically arranged at the leakage grooves of the two airing plates of the airing mechanism at the uppermost end; an elastic side baffle A for preventing grains from leaking is arranged between the same side ends of the two inclined plates; two inclined rain shelters for guiding rainwater to the two sides of the airing mechanism are symmetrically arranged on the outer sides of the two inclined plates; an elastic side baffle B is arranged between the same side ends of the two rain shelters.

As a further improvement of the technology, the two sliding chutes B at the two ends of the supporting bar are respectively in sliding fit with the two guide rods; the return spring is positioned in the circular groove A on the end wall of the corresponding sliding groove A; one end of the reset spring is connected with the inner wall of the circular groove A, and the other end of the reset spring is connected with the end face of the corresponding sliding rod; one end of each sliding rod is provided with a pull ring.

As a further improvement of the technology, four universal wheels are symmetrically arranged at the bottom of the base; the two guide rods are arranged on the bulges which are arranged in the middle of the swing seat and used for increasing the downward swing amplitude of the two airing plates in the bottom airing mechanism around the corresponding swing shafts respectively; the screw rod is in rotating fit with the circular groove B on the swing seat and the circular groove D on the connecting rod; the square rod is in rotating fit with the circular groove C on the swing seat and the circular groove E on the connecting rod; the upper end of the square rod is provided with a manual crank A, and the upper end of the screw rod is provided with a manual crank B.

As a further improvement of the technology, the base is provided with a detachable windshield which encloses and shields all the airing mechanisms; the upper end of the base is provided with two abdicating inclined planes which are symmetrically distributed and respectively increase the swinging amplitude of the corresponding side airing plate in the airing mechanism at the lowest end around the corresponding swinging shaft.

Compared with the traditional grain airing mode, the airing plate in the airing mechanism swings around the swing shaft under the drive of the square rod to an angle smaller than the grain accumulation free-flowing angle with the horizontal plane, so that grains on the airing plate and the airing plate can be kept on the airing plate to the maximum extent for airing. The equivalent cereal sunning of multilayer sunning mechanism has saved the area of cereal sunning place widely, guarantees to use the more cereal of less area sunning, improves the utilization ratio in place and the single sunning volume of cereal.

The grains aired on the multilayer airing mechanism are all dehydrated and air-dried by sunlight and natural wind, and are protected by the rain shielding plates and the wind shielding covers, so that the grains aired on the airing mechanism are not affected by wind and rain, the grains on the airing mechanism do not need to be recovered under the condition of bad weather, the labor is saved, and the grains are completely dehydrated.

In addition, after the grains are completely dehydrated and air-dried, the multi-layer airing mechanism can synchronously generate inclined swing around the round pin along with the swing seat by pulling the slide rod, so that the grains on the airing mechanism slide down and are accumulated and one side of the airing mechanism is further recycled, the workload of airing and recycling a large amount of grains is greatly saved, and the airing efficiency of the grains is improved. The invention can also drive the airing plates in all the airing mechanisms to synchronously swing downwards for a certain angle around the corresponding swing shafts through the square rods, so that grains on the airing plates fall down and are accumulated on the ground on two sides of the base and further recovered, the workload of airing and recovering a large amount of grains is greatly saved, and the airing efficiency of the grains is improved.

The invention has simple structure and better use effect.

Drawings

Fig. 1 is a schematic cross-sectional view of the present invention in cooperation with a rain shield.

Fig. 2 is a schematic view of the present invention from two perspectives.

FIG. 3 is a schematic cross-sectional view of two adjacent airing mechanisms.

FIG. 4 is a schematic cross-sectional view of the base, the support lug, the round pin, the swing seat, the airing mechanism, the guide rod, the connecting rod, the square rod and the screw rod.

FIG. 5 is a schematic cross-sectional view of the pendulum seat, the support block, the slide rod, and the base.

FIG. 6 is a schematic view of the square bar, the airing mechanism and the swing seat.

FIG. 7 is a schematic partial cross-sectional view of the screw, the airing mechanism and the swing seat.

Fig. 8 is a schematic view of the base.

FIG. 9 is a schematic view of a slide bar.

Fig. 10 is a schematic diagram of the pendulum seat, the guide rod and the connecting rod in two view angles.

FIG. 11 is a schematic cross-sectional view of the airing mechanism.

FIG. 12 is a schematic cross-sectional view of the pivot shaft, worm wheel and worm in the airing mechanism.

FIG. 13 is a schematic cross-sectional view of the topmost airing mechanism, the sloping panel, and the flashing cooperating with each other and from two different perspectives.

Fig. 14 is a schematic view of a brace bar.

Fig. 15 is a schematic view of a windshield.

FIG. 16 is a schematic view of the angle between the horizontal plane and the airing plates in two vertically adjacent airing mechanisms adjusted according to the grain flowing angle

Number designation in the figures: 1. a windshield; 2. a base; 3. a chute A; 4. a circular groove A; 5. supporting a lug; 6. a universal wheel; 7. a slide bar; 8. a pull ring; 9. a return spring; 10. a support block; 11. a round pin; 12. a swing seat; 13. a abdication inclined plane; 14. a movable groove; 15. a circular groove B; 16. a circular groove C; 17. a guide bar; 18. a connecting rod; 19. a circular groove D; 20. a circular groove E; 21. a drying mechanism; 22. a supporting strip; 23. a circular arc surface; 24. a chute B; 25. a circular groove F; 26. a circular groove G; 27. a pendulum shaft; 28. drying the plate; 29. a leak groove; 30. a worm; 31. a square groove; 32. a worm gear; 33. a gear; 34. connecting ropes; 35. a square bar; 36. a crank A; 37. a screw; 38. a crank B; 39. a sloping plate; 40. a side baffle A; 41. a flashing; 42. and a side block B.

Detailed Description

The drawings are schematic illustrations of the implementation of the present invention to facilitate understanding of the principles of structural operation. The specific product structure and the proportional size are determined according to the use environment and the conventional technology.

As shown in fig. 1 and 2, the drying device comprises a base 2, a slide rod 7, a return spring 9, a support block 10, a round pin 11, a swing seat 12, a guide rod 17, a drying mechanism 21, a square rod 35 and a screw rod 37, wherein as shown in fig. 2, 4 and 5, the swing seat 12 is hinged between two support lugs 5 on the base 2 through two detachable round pins 11; as shown in fig. 5 and 8, the two slide grooves A3 on the base 2 are respectively provided with a slide bar 7 sliding along the direction parallel to the central axis of the round pin 11, and each slide groove A3 is provided with a return spring 9 for returning to the corresponding slide bar 7; as shown in fig. 5, 9 and 10, each sliding rod 7 is provided with a plurality of supporting blocks 10 which are uniformly distributed along the axial direction of a round pin 11 and limit the swing of a swing seat 12 around the round pin 11; the supporting block 10 on each sliding rod 7 is correspondingly matched with a row of movable grooves 14 on the corresponding side of the bottom of the swing seat 12; as shown in fig. 2, 4 and 10, two guide rods 17 which are axially distributed at intervals along the round pin 11 in the middle of the swing seat 12 are vertically matched with a plurality of layers of airing mechanisms 21 which provide airing places for grains in a sliding manner; vertical screw rods 37 and vertical square rods 35 which are distributed at intervals along the axial direction of the round pin 11 are rotatably matched between the connecting rod 18 which is connected with the upper ends of the two guide rods 17 and the swing seat 12.

As shown in fig. 11 and 12, the airing mechanism 21 includes a support bar 22, a swing shaft 27, an airing plate 28, a worm 30, a worm wheel 32, and a gear 33, wherein as shown in fig. 4, the support bar 22 parallel to the round pin 11 slides vertically on the two guide rods 17; as shown in fig. 12 and 14, a worm 30 is rotatably fitted in the circular groove G26 on the supporting bar 22, and the worm 30 is engaged with a worm wheel 32 mounted on a pendulum shaft 27; as shown in fig. 6 and 12, the through square groove 31 on the worm 30 is axially matched with the square rod 35 in a sliding manner; as shown in fig. 7 and 14, the circular groove F25 on the supporting bar 22 is matched with the screw 37; as shown in fig. 11, 12 and 13, two sides of the supporting bar 22 are respectively hinged with a drying plate 28 for providing a drying place for grains through a swing shaft 27 parallel to the round pin 11, and the two drying plates 28 are symmetrically distributed; as shown in fig. 3 and 11, two ends of each swing shaft 27 are provided with gears 33, and the two gears 33 on the same side ends of the two swing shafts 27 are meshed with each other.

As shown in fig. 6 and 7, the airing plates 28 in the lowermost airing mechanism 21 are in clearance fit with the circular arc surfaces 23 on one side of the corresponding supporting bar 22 around the corresponding swing shafts 27, and a leakage groove 29 for facilitating grain leakage is arranged between the airing plates 28 in the non-lowermost airing mechanism 21 and the corresponding side of the corresponding supporting bar 22; as shown in fig. 7 and 14, the circular groove F25 of the supporting bar 22 in the topmost airing mechanism 21 is in threaded fit with the screw 37, and the circular groove F25 of the supporting bar 22 in the non-topmost airing mechanism 21 is in axial clearance fit with the screw 37; as shown in FIG. 3, the supporting bars 22 of two adjacent airing mechanisms 21 are connected by connecting ropes 34 with equal length.

As shown in fig. 6, 7 and 13, two inclined plates 39 for guiding grains into the drain grooves 29 are symmetrically arranged at the drain grooves 29 of the two airing plates 28 of the airing mechanism 21 at the uppermost end; an elastic side baffle A40 for preventing grains from leaking is arranged between the same side ends of the two inclined plates 39; two inclined rain shielding plates 41 for guiding rainwater to the two sides of the airing mechanism 21 are symmetrically arranged on the outer sides of the two inclined plates 39; an elastic side stop B42 is mounted between the same side ends of both flashing plates 41.

As shown in fig. 4 and 14, the two sliding grooves B24 at the two ends of the supporting bar 22 are respectively in sliding fit with the two guide rods 17; as shown in fig. 5 and 8, the return spring 9 is positioned in a circular groove a4 on the end wall of the corresponding slide groove A3; one end of a return spring 9 is connected with the inner wall of the circular groove A4, and the other end is connected with the end face of the corresponding sliding rod 7; each slide bar 7 has a pull ring 8 at one end.

As shown in fig. 1, 2 and 5, four universal wheels 6 are symmetrically mounted at the bottom of the base 2; as shown in fig. 10, two guide rods 17 are installed on the protrusions in the middle of the swing base 12 for increasing the swinging amplitude of the two airing plates 28 in the bottom airing mechanism 21 around the corresponding swing shafts 27; as shown in fig. 6, 7 and 10, the screw 37 is rotatably matched with a circular groove B15 on the swing seat 12 and a circular groove D19 on the connecting rod 18; the square rod 35 is in rotating fit with the circular groove C16 on the swing seat 12 and the circular groove E20 on the connecting rod 18; the upper end of the square rod 35 is provided with a manual crank A36, and the upper end of the screw 37 is provided with a manual crank B38.

As shown in fig. 1 and 15, the base 2 is provided with a detachable windshield 1 enclosing all the airing mechanisms 21; as shown in fig. 2 and 10, the upper end of the base 2 has two abdicating slopes 13 which are symmetrically distributed and respectively increase the downward swinging amplitude of the corresponding side airing plate 28 of the lowermost airing mechanism 21 around the corresponding swing shaft 27.

The working process of the invention is as follows: in the initial state, the two sun-curing plates 28 in each sun-curing mechanism 21 have the same downward swinging angle around the corresponding swinging shaft 27, all the sun-curing mechanisms 21 are vertically overlapped together, the supporting bars 22 and the supporting bars 22 are overlapped and supported with each other, and the two vertically adjacent sun-curing plates 28 have a sufficiently large space. The connecting rope 34 between two adjacent supporting bars 22 is in a loose state. The two slide bars 7 are respectively and completely contracted in the corresponding slide grooves A3, all the supporting blocks 10 on the slide bars 7 are not opposite to the corresponding movable grooves 14 on the swing seat 12, and all the supporting blocks 10 are propped against two sides of the bottom of the swing seat 12. The wobble seat 12 is in an intermediate state around the round pin 11. Both return springs 9 are in tension.

As shown in fig. 16, when grains need to be sunned by using the present invention, the inclination angles of the sun-cure plates 28 in all the sun-cure mechanisms 21 are adjusted, so that the inclination angle of two sun-cure plates 28 in each sun-cure mechanism 21 is smaller than the stacking gravity angle of the corresponding grains, and the inclination angle of the plane where the edge of the leak groove 29 of the upper sun-cure plate 28 and the side edge of the lower sun-cure plate 28 in the two vertically adjacent sun-cure plates 28 are located is equal to the stacking gravity angle of the corresponding grains.

The adjustment procedure for the inclination angles of the two airing plates 28 in the airing mechanism 21 is as follows:

when the crank A36 is swung, the crank A36 drives the square rod 35 to rotate relative to the connecting rod 18 and the swing seat 12, the square rod 35 simultaneously drives the worms 30 in all the airing mechanisms 21 to synchronously rotate, the worm 30 in each airing mechanism 21 drives the other swinging shaft 27 of the airing mechanism 21 to rotate through the corresponding worm wheel 32, the swinging shaft 27 and the two gears 33 meshed with each other, and the rotating directions of the two swinging shafts 27 in the airing mechanisms 21 are opposite. Two swing shafts 27 in the airing mechanism 21 respectively drive the corresponding airing plates 28 to swing around the corresponding swing shafts 27, and finally the included angle between the airing plates 28 and the horizontal plane reaches the required angle.

After the adjustment of the inclination angle of the drying plates 28 in the drying mechanism 21 is finished, the rocking handle a36 is stopped to swing, and the self-locking function of the mutual matching of the worm 30 and the worm wheel 32 in the drying mechanism 21 can ensure that the included angle between the two drying plates 28 in the drying mechanism 21 and the horizontal plane is kept unchanged.

Then, the funnel formed by the two inclined plates 39 is filled with grains, the grains entering between the two inclined surfaces sequentially pass through the leaking grooves 29 on the inclined plates 39 in the non-lowermost airing mechanism 21 and fall onto the airing plates 28 of the lowermost airing mechanism 21, and finally the two airing plates 28 of the lowermost airing mechanism 21 are fully paved with grains.

When the stacking height of the part of the grains on the drying plate 28 of the lowermost drying mechanism 21 close to the supporting bar 22 and the leaking groove 29 of the upper drying plate 28 are raised, because the inclination angle of the plane where the edge of the leaking groove 29 of the upper drying plate 28 and the side edge of the lower drying plate 28 are located in the two vertically adjacent drying plates 28 is equal to the stacking free-flowing angle of the corresponding grains, the grains on the lowermost drying plate 28 cannot slide to the ground to the side edge of the drying plate 28 of the lowermost drying mechanism 21 due to the continuous stacking of the grains at the leaking groove 29.

With the continuous filling of grains into the funnel formed by the two inclined planes, the same amount of grains are spread on the airing plates 28 of all the airing mechanisms 21, then the crank B38 is shaken, the crank B38 drives the screw rod 37 to rotate, and the screw rod 37 drives the topmost airing mechanism 21 to vertically move upwards along the two guide rods 17 through the supporting strip 22 in threaded fit with the screw rod 37. When the two connecting ropes 34 at the two ends of the supporting bar 22 of the uppermost airing mechanism 21 are straight, the supporting bar 22 in the uppermost airing mechanism 21 drives the airing mechanism 21 adjacent to the lower part thereof to continue to vertically move upwards along the two guide rods 17 through the two connecting ropes 34 at the two ends of the supporting bar 22, the airing mechanism 21 above sequentially drives the airing mechanism 21 adjacent to the lower part thereof to vertically move upwards through the two connecting ropes 34 at the two ends of the supporting bar 22, and finally, the distance between the two adjacent airing mechanisms 21 in all the airing mechanisms 21 is increased and equal. When the connecting rope 34 between any two adjacent airing mechanisms 21 is completely stretched straight, the swinging of the crank B38 is stopped, and the adjustment of the distance between any two adjacent airing mechanisms 21 can be completed.

As the vertical spacing between two adjacent airing mechanisms 21 increases, the grains on the airing plates 28 do not slide down along the inclined airing plates 28 to the outer sides of the corresponding airing plates 28 because the inclination angle of the grain stack on the airing plate 28 in each airing mechanism 21 is just equal to the stacking free-flowing angle of the grains. The increase of the vertical distance between two adjacent airing mechanisms 21 provides enough space for the ventilation and airing of the grains on the airing plates 28, and improves the efficiency of airing and dewatering the grains on the airing plates 28.

After the grains on the sun plate 28 are dehydrated and dried, the grains need to be recovered, and the procedure for recovering the grains is as follows:

the crank A36 is shaken, the crank A36 drives the worms 30 in all the airing mechanisms 21 to synchronously rotate through the square rod 35, the worm 30 in each airing mechanism 21 drives the two corresponding airing plates 28 to synchronously swing downwards by a large enough angle around the corresponding swing shaft 27 through the corresponding worm wheel 32, the swing shaft 27 and the two gears 33 which are meshed with each other, so that the airing plates 28 in all the airing mechanisms 21 swing downwards by the same large enough angle around the corresponding swing shaft 27. In the process that the airing plates 28 swing downwards around the corresponding swing shafts 27, grains on the airing plates 28 slide down and are stacked on the ground on the corresponding side under the action of self weight, and finally grains on the airing plates 28 of all the airing mechanisms 21 slide down to the two sides of the base 2 to form two grain stacks.

Alternatively, the return spring 9 corresponding to the slide bar 7 which has moved is further extended by pulling the one side slide bar 7 outward without driving the airing plate 28 to swing down around the corresponding swing shaft 27 in the airing mechanism 21. When all the supporting blocks 10 on the sliding rod 7 are respectively opposite to the corresponding movable grooves 14 at the bottom of the swing seat 12, the side supporting blocks 10 limit the swing of the swing seat 12 to the side around the round pin 11 to be invalid, under the action of external force, the swing seat 12 drives all the airing mechanisms 21 to synchronously swing around the round pin 11 through the two guide rods 17, and all the airing mechanisms 21 obliquely swing to one side around the round pin 11. When the swing seat 12 swings about 30 degrees around the round pin 11, the swing of the swing seat 12 is limited due to the abutting of the swing seat and the base 2, at this time, all the airing mechanisms 21 reach the limit along with the swing of the swing seat 12, the inclination angle of the airing plate 28 at the side in the airing mechanism 21 is far larger than the stacking free-flow angle of grains, and the grains on the airing plate 28 at the side of any one airing mechanism 21 slide down along the airing plate 28 to the ground at one side of the base 2 under the action of self-weight and are stacked into a pile.

Then, under the action of external force, the swing seat 12 swings back and forth around the round pin 11 to reset, and the swing seat 12 drives all the airing mechanisms 21 to swing back and forth to reset through the two guide rods 17. When the swing seat 12 drives all the airing mechanisms 21 to swing back and complete resetting, the acting force on the moving slide rod 7 is removed, the slide rod 7 retracts back and resets towards the corresponding sliding groove A3 under the resetting action of the resetting spring 9, and the reset slide rod 7 drives all the supporting blocks 10 to instantly complete the swing limitation of the swing seat 12 around the round pin 11 to the side.

Then, the other side slide bar 7 is pulled outwards, and the return spring 9 corresponding to the slide bar 7 which is moved is further extended. When all the supporting blocks 10 on the sliding rod 7 are respectively opposite to the corresponding movable grooves 14 at the bottom of the swing seat 12, the side supporting blocks 10 limit the swing of the swing seat 12 to the side around the round pin 11 to be invalid, under the action of external force, the swing seat 12 drives all the airing mechanisms 21 to synchronously swing around the round pin 11 through the two guide rods 17, and all the airing mechanisms 21 obliquely swing to one side around the round pin 11. When the swing seat 12 swings about 30 degrees around the round pin 11, the swing of the swing seat 12 is limited due to the abutting of the swing seat and the base 2, at this time, all the airing mechanisms 21 reach the limit along with the swing of the swing seat 12, the inclination angle of the airing plate 28 at the side in the airing mechanism 21 is far larger than the stacking free-flow angle of grains, and the grains on the airing plate 28 at the side of any one airing mechanism 21 slide down along the airing plate 28 to the ground at the other side of the base 2 under the action of self-weight and are stacked into a pile.

Then, under the action of external force, the swing seat 12 swings back and forth around the round pin 11 to reset, and the swing seat 12 drives all the airing mechanisms 21 to swing back and forth to reset through the two guide rods 17. When the swing seat 12 drives all the airing mechanisms 21 to swing back and complete resetting, the acting force on the moving slide rod 7 is removed, the slide rod 7 retracts back and resets towards the corresponding sliding groove A3 under the resetting action of the resetting spring 9, and the reset slide rod 7 drives all the supporting blocks 10 to instantly complete the swing limitation of the swing seat 12 around the round pin 11 to the side.

In any case, grains are dumped and stacked by swinging the airing plates 28 of the airing mechanism 21 around the swing shafts 27 without swinging the swing base 12 or by swinging the swing base 12 by action, and finally grains aired on the present invention are stacked on both sides of the base 2 to form two grain stacks.

Two cereal piles that form are convenient for staff's quick collection packing, avoid cereal to retrieve the difficulty that the sunning of large tracts of land place leads to, improve cereal and retrieve the efficiency of packing.

Then, the crank B38 is rotated, and the crank B38 drives all the airing plates 28 in the airing mechanism 21 to swing upward around the corresponding swing shafts 27 to the inclination angle of the initial state through a series of transmission, so that the reset of the invention can be completed.

If the invention airing grains encounters windy weather, the wind shield 1 can be sleeved on the outer side of the wind shield to prevent the windy wind from blowing off the grains from the airing plate 28. Meanwhile, the two rain shields 41 mounted on the inclined plates 39 can prevent the grains which are not recovered in time and still dried on the drying plates 28 from being wetted by the rain water in rainy days. After the weather is improved, the wind shield 1 is removed to continue grain airing and ventilation, so that the influence of weather factors on grain airing is reduced.

In conclusion, the beneficial effects of the invention are as follows: the airing plate 28 in the airing mechanism 21 of the invention is driven by the square rod 35 to swing around the swing shaft 27 to an angle smaller than the grain accumulation free-flow angle with the horizontal plane, so that grains on the airing plate 28 can be kept on the airing plate for airing to the maximum extent. The equivalent grain airing of the multi-layer airing mechanism 21 greatly saves the area of the place where the grain airing is located, ensures that more grains are aired in a smaller area of the place, and improves the utilization rate of the place and the single airing amount of the grains.

The grains aired on the multilayer airing mechanism 21 are all dehydrated and air-dried by sunlight and natural wind, and are protected by the rain shielding plates 41 and the wind shielding covers 1, so that the grains aired on the airing mechanism 21 are not influenced by wind and rain, the grains on the airing mechanism 21 do not need to be recovered under the condition of bad weather, the labor capacity is saved, and the grains are completely dehydrated.

In addition, after the grains are completely dehydrated and air-dried, the multi-layer airing mechanism 21 can synchronously swing obliquely around the round pin 11 along with the swing seat 12 by pulling the slide rod 7, so that the grains on the airing mechanism 21 slide down and are accumulated on one side for further recovery processing, the workload of airing and recovering a large amount of grains is greatly saved, and the grain airing efficiency is improved. The invention can also drive the airing plates 28 in all the airing mechanisms 21 to synchronously swing downwards for a certain angle around the corresponding swing shafts 27 through the square rods 35, so that grains on the airing plates 28 fall and are accumulated on the ground on the two sides of the base 2 for further recovery processing, the workload of airing and recovering a large amount of grains is greatly saved, and the grain airing efficiency is improved.