A new type of fully automatic grain drying and harvesting integrated machine

Abstract

A new type of fully automatic grain drying and harvesting machine, including a primary grain collection mechanism, a secondary grain collection mechanism, a grain bin lifting mechanism, a vehicle chassis, and a grain feeding device. The use of a primary grain collection device and a secondary grain collection device avoids the current situation of incomplete grain collection. The heights of both the primary grain collection mechanism and the secondary grain collection mechanism can be adjusted, improving the practicality of this grain drying robot. The secondary grain collection mechanism uses a method of sucking grains and performs impurity removal on the grains collected secondly. The grain drying claws with adjustable heights evenly distribute the grains on the ground, thus avoiding the current situation of uneven thickness of grains on the ground. The grain drying claws are designed as a mechanism that can dynamically adjust the gap between the small teeth. The grain drying claws can adjust the gap between the claw teeth according to the type of grains, increasing the universality of the scope of use. This robot adopts a four-wheel independent wheel mechanism, and there is no interference in the movement between each wheel, increasing the flexibility and mobility of the movement of this robot.

Description

Technical Field

[0001] The present invention belongs to the technical field of agricultural production, and relates to grain drying equipment, in particular to a new type of fully automatic grain drying and harvesting integrated machine. Background Art

[0002] China is a large agricultural production country. Although China is committed to transforming from an agricultural country to an industrial country, agriculture is still the foundation of the country, and the development of agriculture is related to the national economy and people's livelihood. In order to better store grains, the moisture contained in the grains must be removed, and generally, drying is used to better remove the moisture. Therefore, it is necessary to dry in the early morning and harvest in the evening. The traditional methods of drying and harvesting grains not only have low efficiency and heavy workload, but also require a large amount of manpower and material resources. Therefore, how to quickly and effectively dry and harvest grains has become an urgent problem to be solved. This invention patent is a grain drying and harvesting integrated robot designed for how to quickly and effectively dry grains, aiming to be able to quickly, effectively and efficiently dry and harvest grains to remove the moisture in the grains. Summary of the Invention

[0003] In order to overcome the deficiencies of the above-mentioned prior art, the purpose of the present invention is to provide a new type of fully automatic grain drying and harvesting integrated machine, which overcomes the deficiencies of the traditional methods of drying and harvesting grains and the existing drying and harvesting machines. The present invention provides a grain drying and harvesting integrated robot composed of a primary grain collection mechanism, a secondary grain collection mechanism, a grain box lifting mechanism, and a grain drying mechanism. This robot has the characteristics of being economical and practical, having a simple structure, being easy to operate and maintain, and being able to quickly and effectively complete the drying and harvesting of grains.

[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0005] A new type of fully automatic grain drying and harvesting integrated machine, including a primary grain collection mechanism (Ⅰ), a secondary grain collection mechanism (Ⅱ), a grain box lifting mechanism (Ⅲ), a vehicle chassis (Ⅳ), and a grain feeding device (Ⅴ), characterized in that:

[0006] The said primary grain collection mechanism (Ⅰ) includes:

[0007] The trough-shaped conveyor belt bottom plate (7) is rotatably installed on the bracket (1) through the bearing (3) and the rotating shaft; the conveyor belt (8) is installed on the bottom plate (7); baffles (6) are installed on both sides of the conveyor belt (8), and a leakage plate (2) is installed at the end. The upper surface of the other end of the conveyor belt (8) is perfectly matched with the inclined plane (10); the motor two (22) is fixed below the bottom plate (7); the conveyor belt (8) is driven by the large pulley three (19). The driving hub (9) is connected to the large pulley three (19). The large pulley three (19) is connected to the small pulley two (21) through the belt two (20), and the small pulley two (21) is connected to the output shaft of the motor two (22);

[0008] The grain feeding mechanism includes:

[0009] At the bottom of the inclined plane (10), a grain distributing wheel (11) is installed. The shaft (13) of the grain distributing wheel (11) is connected to the first large belt pulley (15). The first large belt pulley (15) is connected to the first small belt pulley (17) through a first belt (16). The first small belt pulley (17) is connected to the output shaft of the first motor (18).

[0010] The bottom plate (7) is hingedly connected to an electric air pump (24); the electric air pump (24) is hingedly connected to the first frame (23).

[0011] The secondary grain collecting mechanism (Ⅱ) includes:

[0012] The upper surface of the secondary grain suction pipe (26) is hingedly connected to the bottom plate (7); one end of the secondary grain suction pipe (26) is flexibly connected to the grain suction port (34) of the impurity removal box (28). Below one side of the impurity removal box (28), there is a grain outlet (36), and below the grain outlet (36) is the grain collecting box (32); the grain collecting box (32) is installed in the groove of the chassis; a grain suction hose (29) is installed in the grain collecting box (32), the grain suction hose (29) is installed with a grain suction motor (30), the grain suction motor (30) is installed on the fixing plate (31), and the fixing plate (31) is fixedly installed on the second frame (25) through bolts; the second frame (25) is fixedly installed on the chassis (72).

[0013] The output shaft of the fourth motor (39) fixed on the impurity removal box (28) is connected to the air suction blade (40). Below the fourth motor (39), a third motor (37) is fixedly installed, and the blowing blade (38) is connected to the third motor (37). A net (35) is installed between the air suction blade (40) and the blowing blade (38) and the grain suction port (34).

[0014] The grain box lifting mechanism (Ⅲ) includes:

[0015] The grain box (41) is fixed on the vehicle chassis (Ⅳ). The grain box (41) is fixedly connected to the sliding connecting plate (49) through bolts. The fixed connecting joint (48) is fixedly installed at the midpoint of the sliding connecting plate (49). One end of the steel rope (47) passes through the fixed pulley (45) and is connected to the fixed connecting joint (48), and the other end is wound around the steel rope winding disc (50). The central rotating shaft (44) of the fixed pulley (45) is installed on the third frame (42) through the first bearing (43) and the second bearing (46). The steel rope winding disc (50) is connected to the output shaft of the fifth motor (51).

[0016] The bottom of the grain box (41) is gradually concave from the periphery to the outlet (71), and at the same time, an automatic switch door is installed at the outlet (71); a grain chute (53) is also arranged at the outlet (71).

[0017] The long shaft (54) is installed on the sliding connection plate (49), and the second rolling wheels (57) are installed on both sides respectively. The second rolling wheels (57) roll in the limit slots (58) of the third frame (42). The lower ends of the limit slots (58) are open, and the upper ends are limited to prevent the second rolling wheels (57) from rolling out from the upper ends. The short shaft (55) is also installed on the sliding connection plate. The short shaft (55) is below the long shaft (54), and the first rolling wheels (56) are installed on both sides as well.

[0018] The grain feeding device (Ⅴ) includes:

[0019] The adjustable grain drying claw one (63) and the fixed grain drying claw two (64) are installed in the sliding slots of the sliding plate (62). The two sides of the first swing shaft (60) and the second swing shaft (65) are respectively hinged to the vehicle base (59) of the vehicle chassis (Ⅳ) and the sliding plate (62). The middle parts of the first swing shaft (60) and the second swing shaft (65) are hinged to one ends of the first electric pneumatic push rod (61) and the second electric pneumatic push rod (66), and the other ends of the first electric pneumatic push rod (61) and the second electric pneumatic push rod (66) are hinged to the vehicle base (59).

[0020] The sixth motor (68) is fixedly installed on the fixed grain drying claw two (64) and is located in the middle of the grain drying claw one (63) and the grain drying claw two (64). The gear (67) is installed on the output shaft of the sixth motor (68), and there is a rack on the adjustable grain drying claw one (63) that meshes with the gear (67).

[0021] Four wheels (74) are respectively installed on the vehicle chassis (Ⅳ), and the grain drying leakage slot opening (73) is embedded in the chassis (72). The output shaft of the seventh motor (76) is connected to the reducer (75), and the reducer (75) is connected to the wheels (74).

[0022] The beneficial effects of the present invention are:

[0023] 1) The integration of grain drying and grain collection is designed, which avoids waste of resources, is more convenient for grain drying and collection, and improves work efficiency.

[0024] 2) The grain drying robot adopts a primary grain collection device and a secondary grain collection device, which to a certain extent avoids the current situation of incomplete grain collection, enables more grain to be collected, and avoids waste.

[0025] 3) The heights of the primary grain collection mechanism and the secondary grain collection mechanism of the grain drying robot can be adjusted. Only when collecting grain, they will be lowered to contact the ground, which improves the practicability of the grain drying robot.

[0026] 4) The secondary grain collection mechanism adopts the method of sucking grains and conducts impurity removal treatment on the grains collected in the second round. Since the grains collected in the second round are all located at the bottom layer, the collected grains will contain a certain amount of dust, so impurity removal treatment must be carried out.

[0027] 5) The grain drying robot is designed with grain drying claws whose height can be adjusted. The height of the grain drying claws can evenly distribute the grains on the ground, thus avoiding the uneven thickness of the grains on the ground.

[0028] 5) The grain drying claws are designed into a mechanism that can dynamically adjust the gap between the small teeth. The grain drying claws can adjust the gap between the claw teeth according to the type of grains, increasing the universality of the scope of use.

[0029] 6) The robot adopts a four-wheel independent wheel mechanism, and there is no interference in the movement between each wheel, increasing the flexibility and mobility of the robot's movement. Description of the Drawings

[0030] Figure 1 is the overall structural schematic diagram;

[0031] Figure 2 is the partial schematic diagram of the primary grain collection mechanism;

[0032] Figure 3 is the partial enlarged view of the feeding mechanism;

[0033] Figure 4 is the partial enlarged view of the conveyor belt bottom plate swing mechanism;

[0034] Figure 5 is the partial schematic diagram of the secondary grain collection mechanism;

[0035] Figure 6 is the partial enlarged view of the secondary grain collection mechanism;

[0036] Figure 7 is the cross-sectional view of the impurity removal mechanism;

[0037] Figure 8 is the schematic diagram of the grain box lifting mechanism;

[0038] Figure 9 is the top view of the grain box;

[0039] Figure 10 is the schematic diagram of the sliding connecting plate of the grain box;

[0040] Figure 11 is the partial enlarged view of the sliding connecting plate of the grain box;

[0041] Figure 12 is the schematic diagram of the grain drying claw mechanism;

[0042] Figure 13It is a partial enlarged view of the power transmission of the grain drying claw mechanism;

[0043] Figure 14 It is a schematic diagram of an adjustable grain claw;

[0044] Figure 15 It is a schematic diagram of the vehicle chassis system;

[0045] Figure 16 It is a partial schematic diagram of the wheel mechanism. Specific implementation manners

[0046] The invention will be further described below in conjunction with the accompanying drawings.

[0047] As Figure 1 shown, the main design contents of this design include a primary grain collection mechanism (Ⅰ), a secondary grain collection mechanism (Ⅱ), a grain bin lifting mechanism (Ⅲ), a vehicle chassis (Ⅳ), and a grain distributing device (Ⅴ). Each mechanism cooperates with each other to jointly complete grain drying and collection.

[0048] As Figure 2 shown, a partial view of the primary grain collection device. The bottom plate 7 of the trough-shaped conveyor belt is rotatably installed on the bracket 1 through a bearing 3 and a rotating shaft, so that the bottom plate 7 can rotate on the bracket 1. The conveyor belt 8 is installed on the bottom plate 7. There are baffles 6 on both sides of the conveyor belt 8, and a leakage plate 2 is installed at the end. The upper surface of the other end of the conveyor belt 8 is perfectly matched with the inclined plane 10. The driving hub 9 is connected to the large pulley 9. The large pulley 9 is connected to the small pulley 21 through a belt 20. The small pulley 21 is connected to the output shaft of the motor 22. In this way, power can be transmitted from the motor 22 to the large pulley 19, thereby driving the conveyor belt 8 to rotate.

[0049] As Figure 3 shown, a partial enlarged view of the grain feeding mechanism. A grain distributing wheel 11 is installed at the bottom of the inclined plane 10. The shaft 13 of the grain distributing wheel 11 is connected to the large pulley 15. The large pulley 15 is connected to the small pulley 17 through a belt 16. The small pulley 17 is connected to the output shaft of the motor 18, thereby driving the grain distributing wheel 11 to rotate, so as to realize pushing the grain from the bottom of the inclined plane 10 to the top and achieve the purpose of grain distribution. An extension plate is installed at the position in contact with the ground, and the purpose is to expand the width of the grain collection area.

[0050] As Figure 4 shown, a partial view of the swing of the bottom plate 7. The electric air pump 24 is respectively hinged to the bottom plate 7 and the frame 23. It realizes that the bottom plate 7 can swing up and down. The purpose is to enable the entire primary grain collection device to lift. It will only swing down to contact the ground when the grain collection process is carried out, which increases the practicability and adaptability of the machine.

[0051] As Figure 5 、 6As shown in the figure, it is a partial view of the secondary grain collection device. The upper surface of the secondary grain suction pipe 26 is hinged to the bottom plate 7. One end of the secondary grain suction pipe 26 is flexibly connected to the grain suction port 34 of the impurity removal box 28, enabling the secondary grain suction pipe 26 to swing up and down with the bottom plate 7, achieving dynamic height adjustment. After the grain containing dust and impurities enters through the grain suction port 34, it flows out from the grain outlet 36 to the small grain collection box 32 after impurity removal. The small grain collection box 32 is installed in the groove of the chassis. A grain suction hose 29 is installed in the grain collection box 32. The grain suction hose 29 is connected to the grain suction motor 30, and the grain suction motor 30 is installed on the fixing plate 31. The fixing plate 31 is fixedly installed on the frame 25 through bolts. The frame 25 is fixedly installed on the upper bottom plate 72 of the chassis. Thus, the grain is transported from the small grain collection box 32 to the grain box 41.

[0052] As Figure 7 shown, it is a partial cross-sectional view of the impurity removal box. The output shaft of the motor 39 fixed on the impurity removal box 28 is connected to the air suction blade 40. The motor 37 is fixedly installed below the motor 39, and the blowing blade 38 is connected to the motor 37. A net 35 is installed between the air suction blade 40 and the blowing blade 38 and the grain suction inlet 34. The purpose is to prevent the grain sucked in from the grain suction port from flying onto the two blades, thus causing blade damage. A storage box 33 for impurities is installed directly opposite the blowing blade, aiming to collect the impurities and dust blown by the blade 38. Since the mass of the grain is much larger than that of the dust, as long as the wind force is reasonably controlled, the impurity removal effect can be achieved.

[0053] As Figure 8 shown, it is a partial view of the grain box lifting mechanism. The grain box 41 is fixedly connected to the sliding connecting plate 49 through bolts. The fixed connecting joint 48 is fixedly installed at the midpoint of the sliding connecting plate 49. One end of the steel rope 47 passes through the fixed pulley 45 and is connected to the fixed connecting joint 48, and the other end is wound around the steel rope winding disc 50. The central rotating shaft 44 of the fixed pulley 45 is installed on the frame 42 through bearings 43 and 46. The steel rope winding disc 50 is connected to the output shaft of the motor 50. Thus, the power generated by the motor 51 can lift or lower the grain box 41 through the steel rope 47.

[0054] As Figure 9 shown, it is a partial enlarged view of the grain box 41. The bottom of the grain box 41 is gradually concave from the surrounding to the outlet 71, aiming to enable the grain inside to automatically flow out under the condition of a smaller inclination or bottom vibration, avoiding human participation. At the same time, an automatic switch door is installed at the outlet 71, and the automatic switch door only opens when there is grain leakage and is closed during other working periods. A grain chute 53 is also set at the outlet 71, aiming to allow the grain to slide out of the chute 53 completely, avoiding spilling onto the ground.

[0055] As Figure 10 , 11As shown, it is a partial view of the sliding connecting plate of the grain bin. The long shaft 54 is installed on the sliding connecting plate 49, and rolling wheels 57 are installed on both sides respectively. The rolling wheels 57 roll in the limiting groove 58 of the frame 42. The lower end of the limiting groove 58 is open, and the upper end is for limiting to prevent the rolling wheels 57 from rolling out from the upper end. The short shaft 55 is also installed on the sliding connecting plate. The short shaft 55 is below the long shaft 54, and rolling wheels 56 are installed on both sides as well. However, the rolling wheels 56 only roll along the upper surface of the frame and do not play a limiting role. When the sliding connecting plate 49 moves upward to reach the curved track at the upper part of the frame, the bottom of the sliding connecting plate 49 will leave the upper surface of the frame.

[0056] As Figure 12 shown, it is a partial view of the grain drying claw mechanism. The adjustable grain drying claws 63 and the fixed grain drying claws 64 are installed in the sliding grooves of the sliding plate 62. The two sides of the swing shafts 60 and 65 are respectively hinged to the vehicle chassis 59 and the sliding plate 62. The middle parts of the swing shafts 60 and 65 are hinged to one ends of the electric pneumatic push rods 61 and 66, and the other ends of the electric pneumatic push rods 61 and 66 are hinged to the vehicle chassis 59. When the electric pneumatic push rods 61 and 66 expand and contract, they will drive the swing shafts 60 and 65 to swing up and down, thereby driving the height of the grain drying claws to move up and down, achieving the purpose of the flexibility and practicality of this mechanism.

[0057] As Figure 13 shown, it is a partial enlarged view of the grain drying claws. The motor 68 is fixedly installed on the fixed grain drying claw 64 and is located in the middle of the two grain drying claws 63 and 64. The gear 67 is installed on the output shaft of the motor 68. There is a rack on the adjustable grain drying claw 63 that meshes with the gear 67, and the two together form a gear-rack mechanism, thereby enabling the adjustable grain drying claw 63 to reciprocate.

[0058] As Figure 14 shown, it is a partial enlarged view of the grain drying claws. When the adjustable grain drying claw 63 moves relative to the fixed grain drying claw 64, the displacement between the small claw teeth on the two will move within a small range, thereby achieving the adjustment of the gap between the claw teeth and increasing the application range of the grain drying claws.

[0059] As Figure 15 shown, it is a top view of the vehicle chassis system. Four wheels 74 are respectively installed on the vehicle chassis, and the grain drying leakage slot 73 is embedded in the vehicle chassis 72.

[0060] As Figure 16 shown, it is the wheel system. This robot adopts a four-wheel independent wheel mechanism. The output shaft of the motor 76 is connected to the reducer 74, and the reducer 74 is connected to the wheels 73. The advantage of this design is to avoid movement interference between the wheels and increase the flexibility of the robot's movement.

[0061] The working principle of the present invention:

[0062] The motor 18 drives the grain pushing wheel 11 to rotate through the belt 16, and the grain is pushed to be transported from the inclined plane 10 onto the conveyor belt 8. The motor 22 drives the conveyor belt driving hub 9 to rotate through the belt 20, so as to realize the transportation of the grain from the ground to the top of the conveyor belt, and finally the grain slides from the top of the conveyor belt 8 along the leakage plate 2 into the grain box 41. In order to achieve the mobility and flexibility of the entire grain collection mechanism. The entire grain collection mechanism is installed on the frame 1, so that the entire grain collection mechanism can rotate along the frame 1, and the electro-hydraulic push rod 24 pushes the conveyor belt bottom plate 7 to rotate around the frame 1, thus realizing the flexibility of the entire grain collection mechanism.

[0063] The secondary grain suction mechanism is hinged to the conveyor belt bottom plate 7 through the connecting rod 27, and the secondary grain collection mechanism can move along with the primary grain collection mechanism. After the grain is collected by the primary grain collection mechanism, there is still some remaining grain on the ground. At this time, the secondary grain collection mechanism is needed to collect the grain for the second time. The suction machine blade 40 rotates to generate a strong suction force, sucking the grain from the suction port 26 into the impurity removal box 28. Then, under the blocking action of the mesh plate 35, the grain falls downward due to its own gravity. The wind generated by the blower blade 38 removes impurities from the falling grain, removing the dust and impurities carried in the grain and storing the dust and impurities in the impurity collection box 33. The grain after impurity removal falls on the bottom inclined plane of the impurity removal box, and then flows out from the outlet 36 into the grain collection box 32, and then the grain is sucked into the grain box 41 through the grain suction hose 29. The entire grain drying robot adopts a four-wheel independent structure, so that there will be no movement interference between the wheels, and it will automatically drive along the established route, thus realizing the automatic collection of all the grain on the ground.

[0064] When the grain box 41 is full of grain, the grain drying robot automatically transports the grain to the granary. The grain box 47 is fixedly installed with the grain box connecting plate 49. The motor 51 rotates, driving the steel wire winding disc 50 to rotate, so as to wind the steel wire 47 around the winding disc 50, and further realize that the steel wire 47 pulls the grain box 41 to move up and down. When the grain box moves to the bent track in the upper half of the frame 1, due to the limiting effect of the grain box connecting plate 49, the roller 57 can only roll in the limiting groove 58, while the roller 56 is not restricted. The grain box 41 will tilt slightly forward, and since the bottom of the grain box 41 gradually sinks along the outlet, the grain in the grain box 41 can completely flow out from the outlet 71 of the grain box 41 into the granary. This outlet is also intelligently controlled and only opens when discharging.

[0065] When the grain collection agency is closed, the robot transports the grain to the grain drying area. The grain bin 41 lands on the vehicle chassis 72, and the grain outlet 71 of the grain bin 41 is opened. Due to the vibration effect at the bottom, the grain leaks out from the grain bin outlet 71, falls into the chute 69 in the vehicle chassis 72, and slides out from the chassis outlet 70 onto the ground. The grain drying claws 62 evenly distribute the grain dried on the ground within the specified area. The height of the entire grain drying claws can be adjusted and they are only lowered during grain drying. Moreover, the gap between the two claws 63 and 64 of the grain drying claws can be adjusted. The output shaft of the motor 68 drives the gear 67 to rotate. Since the gear 67 meshes with the rack on the claw 63, ultimately, the relative movement between the grain drying claw 63 and the grain drying claw 64 is achieved, thus realizing the automatic adjustment of the gap.

Claims

1. A new type of fully automatic grain drying and harvesting machine, comprising a primary grain collecting mechanism (I), a secondary grain collecting mechanism (II), a grain box lifting mechanism (III), a vehicle chassis (IV), and a grain distributing device (V), characterized in that: The primary grain collection mechanism (I) includes: The trough conveyor belt base plate (7) is rotatably mounted on the bracket (1) through the bearing (3) and the rotating shaft; the conveyor belt (8) is mounted on the trough conveyor belt base plate (7); baffles (6) are mounted on both sides of the conveyor belt (8), and a leak plate (2) is mounted at the end, and the upper surface of the other end of the conveyor belt (8) is perfectly matched with the inclined surface (10); the motor 2 (22) is fixed below the trough conveyor belt base plate (7); the conveyor belt (8) is driven by the large pulley 3 (19), the driving wheel hub (9) is connected to the large pulley 3 (19), the large pulley 3 (19) is connected to the small pulley 2 (21) through the belt 2 (20), and the small pulley 2 (21) is connected to the output shaft of the motor 2 (22); Grain feeding institutions include: A grain shifting wheel (11) is installed at the bottom of the inclined surface (10), the shaft (13) of the grain shifting wheel (11) is connected to a large pulley (15), the large pulley (15) is connected to a small pulley (17) via a belt (16), and the small pulley (17) is connected to an output shaft of a motor (18); An expansion plate is installed at the position in contact with the ground; The trough-shaped conveyor belt bottom plate (7) is hingedly connected to the electric pneumatic pump (24); the electric pneumatic pump (24) is hingedly connected to the frame (23); The secondary grain collection mechanism (II) includes: The upper surface of the secondary grain suction pipe (26) is hingedly connected to the bottom plate (7) of the trough-shaped conveyor belt; one end of the secondary grain suction pipe (26) is flexibly connected to the grain suction port (34) of the impurity removal box (28); a grain outlet (36) is provided below one side of the impurity removal box (28), and a grain receiving box (32) is provided below the grain outlet (36); the grain receiving box (32) is installed in the groove of the chassis; a grain suction hose (29) is installed in the grain receiving box (32), the grain suction hose (29) is installed with the grain suction motor (30), and the grain suction motor (30) is installed on the fixed plate (31), and the fixed plate (31) is fixedly installed on the frame 2 (25) by bolts; the frame 2 (25) is fixedly installed on the chassis (72); The output shaft of the motor four (39) fixed on the impurity removal box (28) is connected to the suction blade (40), the motor three (37) is fixedly installed below the motor four (39), the blowing blade (38) is connected to the motor three (37), and a net (35) is installed between the suction blade (40) and the blowing blade (38) and the grain suction port (34); A storage box (33) for impurities is installed directly opposite the blowing blade (38); Grain tank lifting mechanism (III) includes: The grain box (41) is fixed on the vehicle chassis (Ⅳ). The grain box (41) is fixedly connected to the sliding connecting plate (49) by bolts. The fixed connection joint (48) is fixedly installed at the midpoint of the sliding connecting plate (49). One end of the steel rope (47) is connected to the fixed connection joint (48) through a fixed pulley (45), and the other end is wound around the steel rope reel (50). The central rotating shaft (44) of the fixed pulley (45) is installed on the frame three (42) through bearing one (43) and bearing two (46). The steel rope reel (50) is connected to the output shaft of the motor five (51). The bottom of the grain box (41) is gradually concave from the periphery to the outlet (71), and an automatic switch door is installed at the outlet (71). A grain chute (53) is also provided at the outlet (71). The long shaft (54) is installed on the sliding connecting plate (49), and rolling wheels two (57) are installed on both sides respectively. The rolling wheels two (57) roll in the limit groove (58) of the frame three (42). The lower end of the limit groove (58) is open, and the upper end is limited to prevent the rolling wheels two (57) from rolling out from the upper end. The short shaft (55) is also installed on the sliding connecting plate. The short shaft (55) is below the long shaft (54), and rolling wheels one (56) are installed on both sides. The rolling wheels one (56) only roll along the upper surface of the frame. When the sliding connecting plate (49) moves upward to reach the curved track at the upper part of the frame, the bottom of the sliding connecting plate (49) will leave the upper surface of the frame. The grain distributing device (Ⅴ) includes: The adjustable grain drying claw one (63) and the fixed grain drying claw two (64) are installed in the chute of the sliding plate (62). The two sides of the swing shaft one (60) and the swing shaft two (65) are respectively hinged to the vehicle base (59) of the vehicle chassis (Ⅳ) and the sliding plate (62). The middle of the swing shaft one (60) and the swing shaft two (65) are hinged to one end of the electric pneumatic push rod one (61) and the electric pneumatic push rod two (66). The other ends of the electric pneumatic push rod one (61) and the electric pneumatic push rod two (66) are hinged to the vehicle base (59). The motor six (68) is fixedly installed on the fixed grain drying claw two (64) and is located in the middle of the adjustable grain drying claw one (63) and the fixed grain drying claw two (64). The gear (67) is installed on the output shaft of the motor six (68). There is a rack on the adjustable grain drying claw one (63) that meshes with the gear (67). Four wheels (74) are respectively installed on the vehicle chassis (Ⅳ). The grain drying leakage slot opening (73) is inlaid on the chassis (72). The output shaft of the motor seven (76) is connected to the reducer (75), and the reducer (75) is connected to the wheels (74).

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