Grain harvester and method of operating the same

Abstract

The present invention discloses a grain harvester and an operating method thereof, and relates to the technical field of grain harvesters, comprising a grain harvester body, the grain harvester body comprising a vertical packaging cylinder, a plate carrier and two handrail frames, receiving seats are fixed to the opposite surfaces of the two handrail frames, lifting slide grooves are provided on the opposite surfaces of the two receiving seats, a same lifting rod is slidably arranged between the two lifting slide grooves, an elastic reset unit used in conjunction with the lifting rod is arranged in each lifting slide groove, two pairs of bag-supporting rods are symmetrically fixed to one side of the lifting rod, a driving assembly used in conjunction with the lifting rod is arranged on the plate carrier, and a limiting assembly used in conjunction with the lifting rod is arranged on each receiving seat; when the present invention is in operation and use, it is convenient for the packaging bag filled with grains to be removed from the plate carrier by translation, and will not cause the expansion of the insertion hole on the packaging bag or the deformation of the bag-supporting rod, and the use is convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of grain harvesters, and in particular to a grain harvester and an operating method thereof. Background Art

[0002] The patent with application announcement number CN219057554U discloses a grain harvester and its material collecting and lifting device. The material collecting and lifting device includes a collecting device and a lifting device. The collecting device is used to collect and gather grains, and the lifting device is used to lift the grains collected by the collecting device. The collecting device includes a double-helical auger. The double-helical auger includes a central axis and a left spiral blade, a right spiral blade, and an intermediate blade installed on the central axis. The left spiral blade and the right spiral blade are respectively used to gather the grains on the left and right sides of the front of the grain harvester to the center, and the intermediate blade is used to lift the gathered grains to the entrance of the lifting device. The grain harvester and its material collecting and lifting device are provided with a collecting device and a lifting device, and the collecting device adopts a double-helical auger structure, so that the structure is simple, the operation is smooth and reliable, which is conducive to the large-scale promotion of the grain harvester and can greatly improve the work efficiency and working environment of farmers.

[0003] The above-mentioned grain harvester has certain defects during use. For example, when the existing bagging grain harvester is in use, it is necessary to insert and sleeve a number of empty packaging bags on two pairs of bag-supporting rods. When cooperating with grain collection and bagging, the bag openings of the corresponding packaging bags are propped up by the bag-supporting rods. However, the ends of the bag-supporting rods on the existing grain harvester are usually provided with a tilted portion inclined upward. When the corresponding packaging bag is filled with grains under the guidance of the vertical dispensing cylinder, it is necessary to move the packaging bag filled with grains from the carrier frame horizontally and remove it. During this process, the packaging bag filled with grains will also move horizontally away from the bag-supporting rods. Since the ends of the bag-supporting rods are provided with tilted portions, it is not very convenient to operate when removing the packaging bag filled with grains from the bag-supporting rods, and it is easy to enlarge the insertion hole formed when the bag-supporting rods are inserted into the packaging bag. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art:

[0005] The existing grain harvester is not convenient for removing the packaging bag filled with grains from the carrier frame and the bag supporting rod.

[0006] A grain harvester and an operating method thereof are proposed.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A grain harvester, a grain harvester body, the grain harvester body comprising a vertical filling cylinder, a plate carrier and two handrail frames, receiving seats are fixed on the opposite sides of the two handrail frames, lifting slides are opened on the opposite sides of the two receiving seats, the same lifting rod is slidably arranged between the two lifting slides, each lifting slide is provided with an elastic reset unit used in conjunction with the lifting rod, two pairs of bag supporting rods are symmetrically fixed on one side of the lifting rod, a driving assembly used in conjunction with the lifting rod is arranged on the plate carrier, and a limiting assembly used in conjunction with the lifting rod is arranged on each receiving seat.

[0009] As a further technical solution of the present invention, each of the elastic reset units includes a spring fixed between the lower end surface of the lifting rod and the bottom of the lifting slide groove. A guide rod is fixed to the lower end surface of the lifting rod. The lower end of each guide rod is movably inserted into the receiving seat, and each spring is movably mounted on the outer surface of the corresponding guide rod.

[0010] As a further technical solution of the present invention, the driving assembly includes a lifting plate movably arranged under the plate carrier, a pedal is fixed on one side of the lifting plate, an elastic reset unit 2 is arranged between the lifting plate and the inner top of the plate carrier, a pull rope 1 is connected between the lifting plate and the lifting rod, an intermediate cross bar is fixed between the two handrail frames, a pulley group 1 is fixed on the intermediate cross bar, a pulley group 2 is fixed on one side of the plate carrier, a pulley group 3 is fixed on the inner top of the plate carrier, and the pull rope 1 passes through the surfaces of pulley group 1, pulley group 2 and pulley group 3 in sequence.

[0011] As a further technical solution of the present invention, the elastic reset unit 2 includes a plurality of springs fixed between the lifting plate and the inner top of the plate carrier frame, and a plurality of guide columns are fixed to the inner top of the plate carrier frame. The lower end of each guide column can movably pass through the lifting plate and fix a limiting block, and each spring 2 can be movably mounted on the outer surface of the corresponding guide column.

[0012] As a further technical solution of the present invention, each of the limiting components includes a connecting seat fixed on one side of the receiving seat, an insert block is provided on one side of the connecting seat, one end of the insert block is movably inserted into the lifting rod, and a slot for cooperating with the insert block is provided at the end of the lifting rod. An elastic reset unit three is provided between each insert block and the corresponding connecting seat, and a driving unit for cooperating with the insert block is provided on each handrail frame.

[0013] As a further technical solution of the present invention, each of the elastic reset units three includes a connecting block fixed to the upper and lower end surfaces of the insert block, and a spring three is fixed between each connecting block and the connecting seat.

[0014] As a further technical solution of the present invention, each of the driving units includes a pull rope 2 fixed to one side of the corresponding plug block, an L-shaped connecting frame is fixed on each handrail frame, the end of the pull rope 2 movably passes through the L-shaped connecting frame and is fixed with a pull rod, and a pulley group 4 is provided on one side of each handrail frame for use with the pull rope 2.

[0015] As a further technical solution of the present invention, the grain harvester body also includes a frame and a double-helical auger, the upper end surface of the frame is fixed with a special-shaped mounting seat, one side of the special-shaped mounting seat is fixed with a mounting cylinder, and an exhaust fan blade group is rotatably arranged in the mounting cylinder.

[0016] As a further technical solution of the present invention, one end of the central axis of the double-helix auger rotates through the frame and is fixedly sleeved with sprocket one, and the outer surface of one end of the central axis of the exhaust fan blade group is fixedly sleeved with sprocket two, and a chain is rotatably arranged between sprocket one and sprocket two.

[0017] An operating method of a grain harvester, the specific operating steps of the method are:

[0018] Step 1: First, a number of empty packaging bags are inserted and sleeved on each pair of bag-supporting rods, and then the bag opening of the outermost packaging bag is sleeved on the outer surface of the lower end of the corresponding vertical dispensing cylinder. The grains collected and transported by the grain harvester body fall into the packaging bags through the vertical dispensing cylinder, and the grains are bagged and collected;

[0019] Step 2: When the packaging bag is full, the vertical dispensing cylinder is blocked, and then the limit fixing of the lifting rod is released by the limit assembly. Then, under the action of the driving assembly, the lifting rod is prompted to move downward for a distance with the bag-supporting rod, so that the corresponding bag-supporting rod no longer supports the bag opening of the packaging bag filled with grains upward;

[0020] Step 3: Remove the packaging bag filled with grains from the carrier rack horizontally.

[0021] Beneficial effects of the present invention:

[0022] 1. When in use, first insert and sleeve a number of empty packaging bags on each pair of bag-supporting rods, and then sleeve the outermost packaging bag mouth on the outer surface of the lower end of the corresponding vertical dispensing cylinder. The grains collected and transported by the grain harvester body fall into the packaging bag through the vertical dispensing cylinder, and the grains are bagged and collected. When the packaging bag is full, the vertical dispensing cylinder is blocked, and then the limit fixation of the lifting rod is released by the limit assembly. Then, under the action of the driving assembly, the lifting rod is prompted to move downward for a distance with the bag-supporting rod, so that the corresponding bag-supporting rod no longer supports the bag mouth of the packaging bag full of grains, so that the packaging bag full of grains can be removed from the carrier frame by horizontal movement, without causing the expansion of the insertion hole on the packaging bag (generated when the bag-supporting rod is inserted into the packaging bag) and the deformation of the bag-supporting rod, which is easy to use.

[0023] 2. When it is necessary to move the lifting rod with the bag supporting rod downward, the user steps on the pedal downward with his foot, and the pedal moves the lifting plate downward together. In this process, spring 2 is stretched and deformed to store elastic potential energy. When the lifting plate moves downward, it will pull the end of pull rope 1 downward. Under the guidance of pulley group 3, pulley group 2 and pulley group 1, pull rope 1 pulls the lifting rod downward. When the packaging bag containing grains is removed from the plate carrier, the pedal can be released. Under the action of the elastic potential energy of spring 2, the pedal is reset upward. At this time, the lifting rod also moves upward under the action of spring 1, which is convenient to use.

[0024] 3. During use, when the lifting rod needs to be moved downward, the user first pulls the two pull rods, and the pull rods pull the pull rope 2 to move. Under the guidance of the pulley group 4, the pull rope 2 pulls the plug block to translate, causing the end of the plug block to move out of the slot, thereby releasing the limit fixation of the lifting rod. During the translation of the plug block, the spring 3 is stretched and deformed to store elastic potential energy. When the end of the plug block moves out of the slot, the user steps on the pedal and pulls the lifting rod downward by pulling the pull rope 1. At this time, the pull rod can be released. At this time, the plug block will not affect the downward movement of the lifting rod. When the lifting rod needs to be reset to its initial position upward, the pull rod can be pulled again. After the lifting rod moves upward to the initial position, the pull rod is released. The plug block is inserted into the slot again under the action of the elastic potential energy of the spring 3, thereby limiting and fixing the lifting rod. The operation is convenient.

[0025] 4. When in use, when the double-helix auger rotates, it will drive sprocket one to rotate, and through the set chain, it will drive sprocket two and the exhaust fan blade group to rotate. The rotation of the exhaust fan blade group generates air flow, and the air flow drives the floating dust generated when harvesting grains to move toward the side away from the grain accumulation, thereby reducing the dust content in the drying grains. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0027] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0028] Figure 3 The overall structure of the present invention is shown in FIG. Figure 3 ;

[0029] Figure 4 It is a schematic diagram of the connection between the handrail frame and the L-shaped connecting frame in the present invention;

[0030] Figure 5 It is a schematic diagram of the connection between the lifting plate and the pedal in the present invention;

[0031] Figure 6 It is a schematic diagram of the connection between the guide column and the limit block in the present invention;

[0032] Figure 7 is a schematic diagram of the internal structure of the slot in the present invention;

[0033] Figure 8 It is a schematic diagram of the connection between the receiving seat and the bag supporting rod in the present invention;

[0034] Fig. 9 It is a schematic diagram of the connection between the special-shaped mounting seat and the mounting tube in the present invention;

[0035] Fig.10 for Figure 1 A local enlarged schematic diagram of the middle A;

[0036] Fig.11 for Figure 8 A partial enlarged schematic diagram of point B in the middle;

[0037] Fig.12 This is a schematic diagram of the connection between the pull rope 1 and the lifting plate in the present invention;

[0038] Fig.13 It is a schematic diagram of the bottom structure of the plate carrier in the present invention.

[0039] In the figure: 1. Grain harvester body; 2. Vertical dispensing cylinder; 3. Plate carrier; 4. Handrail; 5. Receiver; 6. Lifting chute; 7. Lifting rod; 8. Bag support rod; 9. Spring 1; 10. Guide rod; 11. Lifting plate; 12. Pedal; 13. Draw rope 1; 14. Middle cross bar; 15. Pulley block 1; 16. Pulley block 2; 17. Pulley block 3; 18. Spring 2; 19. Guide Column; 20, limit block; 21, connecting seat; 22, plug block; 23, slot; 24, connecting block; 25, spring three; 26, pull rope two; 27, L-shaped connecting frame; 28, pull rod; 29, pulley group four; 30, rack; 31, double helical auger; 32, special-shaped mounting seat; 33, mounting cylinder; 34, exhaust fan blade group; 35, sprocket one; 36, sprocket two; 37, chain. DETAILED DESCRIPTION

[0040] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0041] Reference Figure 1-Figure 13A grain harvester comprises a grain harvester body 1. The grain harvester body 1 realizes the collection and bagging of dried grains as an existing technology. The grain harvester body 1 comprises a vertical packaging cylinder 2, a carrier frame 3 and two armrest frames 4. The opposite surfaces of the two armrest frames 4 are fixed with receiving seats 5. The opposite surfaces of the two receiving seats 5 are provided with lifting slides 6. The same lifting rod 7 is slidably arranged between the two lifting slides 6. An elastic reset unit 1 for cooperating with the lifting rod 7 is arranged in each lifting slide 6. Two pairs of bag supporting rods 8 are symmetrically fixed on one side of the lifting rod 7. A driving assembly for cooperating with the lifting rod 7 is arranged on the carrier frame 3, and a limiting assembly for cooperating with the lifting rod 7 is arranged on each receiving seat 5.

[0042] Reference Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 8 When in use, firstly, a number of empty packaging bags are inserted and sleeved on each pair of bag-supporting rods 8, and then the bag mouth of the outermost packaging bag is sleeved on the outer surface of the lower end of the corresponding vertical dispensing cylinder 2. The grain harvester body 1 collects and transports the grains, which fall into the packaging bag through the vertical dispensing cylinder 2, and the grains are bagged and collected. When the packaging bag is full, the vertical dispensing cylinder 2 is blocked, and then the limiting fixation of the lifting rod 7 is released by the limiting component. Then, under the action of the driving component, the lifting rod 7 is prompted to move downward for a distance with the bag-supporting rod 8, so that the corresponding bag-supporting rod 8 no longer supports the bag mouth of the packaging bag full of grains, so that the packaging bag full of grains can be removed from the carrier frame 3 by translation, without causing the expansion of the insertion hole on the packaging bag (generated when the bag-supporting rod 8 is inserted into the packaging bag) or the deformation of the bag-supporting rod 8, and it is easy to use.

[0043] Reference Figure 7 Each elastic reset unit includes a spring 9 fixed between the lower end surface of the lifting rod 7 and the bottom of the lifting slide groove 6. A guide rod 10 is fixed to the lower end surface of the lifting rod 7. The lower end of each guide rod 10 movably penetrates the receiving seat 5, and each spring 9 is movably sleeved on the outer surface of the corresponding guide rod 10.

[0044] Reference Figure 4 and Figure 7 In the initial state, the lifting rod 7 is located at the inner top of the lifting slide 6, and the lifting rod 7 is limited and fixed by the set limit assembly. When the limit assembly releases the limit fixation of the lifting rod 7, under the action of the driving assembly, the lifting rod 7 is prompted to move downward with the bag supporting rod 8. In this process, the spring 19 is squeezed and deformed to store elastic potential energy. When the driving assembly no longer applies a downward force to the lifting rod 7, the elastic potential energy stored in the spring 19 is released, prompting the lifting rod 7 to move upward with the bag supporting rod 8.

[0045] Reference Figure 4-Figure 6The driving assembly includes a lifting plate 11 movably arranged under the plate carrier 3, a pedal 12 is fixed to one side of the lifting plate 11, an elastic reset unit 2 is arranged between the lifting plate 11 and the inner top of the plate carrier 3, a pull rope 13 is connected between the lifting plate 11 and the lifting rod 7, an intermediate cross bar 14 is fixed between the two handrails 4, a pulley block 15 is fixed on the intermediate cross bar 14, a pulley block 2 16 is fixed to one side of the plate carrier 3, a pulley block 3 17 is fixed to the inner top of the plate carrier 3, and the pull rope 13 passes through the surfaces of the pulley block 15, the pulley block 2 16 and the pulley block 3 17 in sequence.

[0046] In other embodiments, both ends of the pull rope 13 may be hinged to the side walls of the lifting plate 11 and the lifting rod 7 respectively.

[0047] Reference Figure 6 The elastic reset unit 2 includes a plurality of springs 18 fixed between the lifting plate 11 and the inner top of the plate carrier 3. A plurality of guide columns 19 are fixed to the inner top of the plate carrier 3. The lower end of each guide column 19 movably passes through the lifting plate 11 and is fixed with a limiting block 20. Each spring 18 movably sleeves on the outer surface of the corresponding guide column 19.

[0048] Reference Figure 2-Figure 6 When it is necessary to prompt the lifting rod 7 to move downward with the bag supporting rod 8, the user steps on the pedal 12 with his foot, and the pedal 12 moves downward with the lifting plate 11. In this process, the spring 2 18 is stretched and deformed to store elastic potential energy. When the lifting plate 11 moves downward, it will pull the end of the pull rope 13 downward. Under the guidance of the pulley group 3 17, the pulley group 2 16 and the pulley group 1 15, the pull rope 13 is prompted to pull the lifting rod 7 downward. When the packaging bag containing grains is removed from the carrier frame 3, the pedal 12 can be released. Under the action of the elastic potential energy of the spring 2 18, the pedal 12 is reset upward. At this time, the lifting rod 7 also moves upward under the action of the spring 1 9, which is convenient to use.

[0049] In other embodiments, the position of the pulley block 15 can be adjusted as needed to reduce the angle between the pull rope 13 and the lifting rod 7.

[0050] Reference Figure 4 , Figure 5 , Figure 7 and Figure 8 Each limiting assembly includes a connecting seat 21 fixed to one side of the receiving seat 5, a plug block 22 is provided on one side of the connecting seat 21, one end of the plug block 22 is movably inserted into the lifting rod 7, and a slot 23 for cooperating with the plug block 22 is provided at the end of the lifting rod 7. An elastic reset unit three is provided between each plug block 22 and the corresponding connecting seat 21, and a driving unit for cooperating with the plug block 22 is provided on each handrail frame 4.

[0051] When in use, the driving unit is provided to drive the insert block 22 away from the connecting seat 21 , so that the end of the insert block 22 is moved out of the slot 23 , thereby releasing the limit fixation of the lifting rod 7 .

[0052] Reference Figure 7 Each elastic reset unit 3 includes a connecting block 24 fixed to the upper and lower end surfaces of the insert block 22, and a spring 3 25 is fixed between each connecting block 24 and the connecting seat 21.

[0053] Reference Figure 8 Each driving unit includes a pull rope 26 fixed to one side of the corresponding plug block 22, an L-shaped connecting frame 27 is fixed on each handrail frame 4, the end of the pull rope 26 movably passes through the L-shaped connecting frame 27 and is fixed with a pull rod 28, and a pulley group 29 used in conjunction with the pull rope 26 is provided on one side of each handrail frame 4.

[0054] Reference Figure 4 , Figure 5 , Figure 7 and Figure 8 When in use, when it is necessary to move the lifting rod 7 downward, the user first pulls the two pull rods 28, and the pull rods 28 pull the pull rope 26 to move. Under the guidance of the pulley group 4 29, the pull rope 26 pulls the plug block 22 to translate, causing the end of the plug block 22 to move out of the slot 23, thereby releasing the limit fixation of the lifting rod 7. During the translation process of the plug block 22, the spring 3 25 is stretched and deformed to store elastic potential energy. When the end of the plug block 22 moves out of the slot 23, the user steps on By stepping on the pedal 12, the lifting rod 7 is pulled downward by the pull rope 13, and the pull rod 28 can be released at this time. At this time, the plug block 22 will not affect the downward movement of the lifting rod 7. When the lifting rod 7 needs to be reset to the initial position upward, the pull rod 28 can be pulled again. When the lifting rod 7 moves upward to the initial position, the pull rod 28 is released, and the plug block 22 is inserted into the slot 23 again under the action of the elastic potential energy of the spring three 25, so as to limit and fix the lifting rod 7, which is easy to operate.

[0055] Reference Figure 1 , Figure 2 , Figure 3 and Fig. 9 The grain harvester body 1 also includes a frame 30 and a double-screw auger 31. A special-shaped mounting seat 32 is fixed to the upper end surface of the frame 30. A mounting cylinder 33 is fixed to one side of the special-shaped mounting seat 32. An exhaust fan blade group 34 is rotatably arranged in the mounting cylinder 33.

[0056] Reference Figure 1 , Figure 2 , Figure 3 and Fig. 9One end of the central axis of the double spiral auger 31 rotates through the frame 30 and is fixedly sleeved with a sprocket 1 35, and the outer surface of one end of the central axis of the exhaust fan blade group 34 is fixedly sleeved with a sprocket 2 36, and a chain 37 is rotatably set between the sprocket 1 35 and the sprocket 2 36.

[0057] When in use, the double helical auger 31 rotates to cooperate with the grain collection state, and the rotation of the double helical auger 31 is a prior art.

[0058] Reference Figure 1 , Figure 2 , Figure 3 and Fig. 9 When in use, when the double-screw auger 31 rotates, it will drive the sprocket 1 35 to rotate, and the chain 37 will drive the sprocket 2 36 and the exhaust fan blade group 34 to rotate. The rotation of the exhaust fan blade group 34 generates air flow, and the air flow drives the floating dust generated when harvesting grains to move toward the side away from the grain accumulation, thereby reducing the dust content in the drying grains.

[0059] An operating method of a grain harvester, the specific operating steps of the method are:

[0060] Step 1: First, a number of empty packaging bags are inserted and sleeved on each pair of bag-supporting rods 8, and then the bag opening of the outermost packaging bag is sleeved on the lower outer surface of the corresponding vertical dispensing cylinder 2. The grain harvester body 1 collects and transports the grains through the vertical dispensing cylinder 2 and drops them into the packaging bags, and the grains are bagged and collected;

[0061] Step 2: When the packaging bag is full, the vertical dispensing cylinder 2 is blocked, and then the limit fixing of the lifting rod 7 is released by the limit assembly. Then, under the action of the driving assembly, the lifting rod 7 is prompted to move downward for a distance with the bag-supporting rod 8, so that the corresponding bag-supporting rod 8 no longer supports the bag opening of the packaging bag filled with grains upward;

[0062] Step three, remove the packaging bag filled with grains from the carrier rack 3 by horizontal movement.

[0063] When the present invention is used, refer to Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 8, firstly, a plurality of empty packaging bags are inserted and sleeved on each pair of bag-supporting rods 8, and then the bag mouth of the outermost packaging bag is sleeved on the outer surface of the lower end of the corresponding vertical dispensing cylinder 2, and the grain harvester body 1 collects and transports the grains and drops them into the packaging bag through the vertical dispensing cylinder 2, and the grains are bagged and collected. When the packaging bag is full, the vertical dispensing cylinder 2 is blocked, and then the limit fixation of the lifting rod 7 is released by the limit assembly, and then under the action of the driving assembly, the lifting rod 7 is prompted to move downward for a distance with the bag-supporting rod 8, so that the corresponding bag-supporting rod 8 no longer supports the bag mouth of the packaging bag full of grains, so that the packaging bag full of grains can be removed from the carrier frame 3 by translation, without causing the expansion of the insertion hole on the packaging bag (generated when the bag-supporting rod 8 is inserted into the packaging bag) and the deformation of the bag-supporting rod 8, which is convenient to use;

[0064] Reference Figure 2-Figure 6 When it is necessary to move the lifting rod 7 with the bag supporting rod 8 downward, the user steps on the pedal 12 with his foot, and the pedal 12 moves the lifting plate 11 downward together. In this process, the spring 2 18 is stretched and deformed to store elastic potential energy. When the lifting plate 11 moves downward, it will pull the end of the pull rope 13 downward. Under the guidance of the pulley group 3 17, the pulley group 2 16 and the pulley group 1 15, the pull rope 13 is prompted to pull the lifting rod 7 downward. When the packaging bag containing the grains is removed from the plate carrier 3, the pedal 12 can be released. Under the action of the elastic potential energy of the spring 2 18, the pedal 12 is reset upward. At this time, the lifting rod 7 also moves upward under the action of the spring 1 9, which is convenient to use.

[0065] Reference Figure 4 , Figure 5 , Figure 7 and Figure 8 When in use, when it is necessary to move the lifting rod 7 downward, the user first pulls the two pull rods 28, and the pull rods 28 pull the pull rope 26 to move. Under the guidance of the pulley group 4 29, the pull rope 26 pulls the plug block 22 to translate, causing the end of the plug block 22 to move out of the slot 23, thereby releasing the limit fixation of the lifting rod 7. During the translation process of the plug block 22, the spring 3 25 is stretched and deformed to store elastic potential energy. When the end of the plug block 22 moves out of the slot 23, the user steps on By stepping on the pedal 12, the lifting rod 7 is pulled downward by the pull rope 13, and the pull rod 28 can be released at this time. At this time, the plug block 22 will not affect the downward movement of the lifting rod 7. When the lifting rod 7 needs to be reset to the initial position upward, the pull rod 28 can be pulled again. When the lifting rod 7 moves upward to the initial position, the pull rod 28 is released, and the plug block 22 is inserted into the slot 23 again under the action of the elastic potential energy of the spring three 25, so as to limit and fix the lifting rod 7, which is convenient to operate;

[0066] Reference Figure 1 , Figure 2 , Figure 3 and Fig. 9 When in use, when the double-screw auger 31 rotates, it will drive the sprocket 1 35 to rotate, and the chain 37 will drive the sprocket 2 36 and the exhaust fan blade group 34 to rotate. The rotation of the exhaust fan blade group 34 generates air flow, and the air flow drives the floating dust generated when harvesting grains to move toward the side away from the grain accumulation, thereby reducing the dust content in the drying grains.

[0067] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A grain harvester, comprising a grain harvester body (1), characterized in that: The grain harvester body (1) comprises a vertical dispensing cylinder (2), a plate carrier (3) and two handrail frames (4); receiving seats (5) are fixed on the opposite surfaces of the two handrail frames (4); lifting grooves (6) are provided on the opposite surfaces of the two receiving seats (5); a same lifting rod (7) is slidably arranged between the two lifting grooves (6); an elastic reset unit (1) used in conjunction with the lifting rod (7) is arranged in each lifting groove (6); two pairs of bag-supporting rods (8) are symmetrically fixed on one side of the lifting rod (7); a driving assembly used in conjunction with the lifting rod (7) is arranged on the plate carrier (3); and a limit assembly used in conjunction with the lifting rod (7) is arranged on each receiving seat (5); The driving assembly comprises a lifting plate (11) movably arranged below the plate carrier (3), a pedal (12) being fixed to one side of the lifting plate (11), a second elastic reset unit being arranged between the lifting plate (11) and the top of the plate carrier (3), and a pull rope (13) being connected between the lifting plate (11) and the lifting rod (7); Each of the limiter components comprises a connecting seat (21) fixed to one side of the receiving seat (5), an insert block (22) is provided on one side of the connecting seat (21), one end of the insert block (22) is movably inserted into the lifting rod (7), an elastic reset unit 3 is provided between each insert block (22) and the corresponding connecting seat (21), and a driving unit for use with the insert block (22) is provided on each handrail frame (4); Each of the driving units comprises a second pull rope (26) fixed to one side of the corresponding plug block (22), an L-shaped connecting frame (27) is fixed to each handrail frame (4), and the end of the second pull rope (26) movably passes through the L-shaped connecting frame (27) and is fixed with a pull rod (28).

2. A grain harvester according to claim 1, characterized in that: Each of the elastic reset units comprises a spring (9) fixed between the lower end surface of the lifting rod (7) and the inner bottom of the lifting slot (6); a guide rod (10) is fixed to the lower end surface of the lifting rod (7); the lower end of each guide rod (10) movably penetrates the receiving seat (5); and each spring (9) is movably sleeved on the outer surface of the corresponding guide rod (10).

3. A grain harvester according to claim 1, characterized in that: An intermediate cross bar (14) is fixed between the two handrail frames (4), a pulley block 1 (15) is fixedly arranged on the intermediate cross bar (14), a pulley block 2 (16) is fixedly arranged on one side of the plate carrier frame (3), a pulley block 3 (17) is fixedly arranged on the inner top of the plate carrier frame (3), and the pull rope 1 (13) passes through the surfaces of the pulley block 1 (15), the pulley block 2 (16) and the pulley block 3 (17) in sequence.

4. A grain harvester according to claim 3, characterized in that: The elastic reset unit 2 comprises a plurality of springs 2 (18) fixed between the lifting plate (11) and the inner top of the plate carrier (3); a plurality of guide columns (19) are fixed to the inner top of the plate carrier (3); the lower end of each guide column (19) movably passes through the lifting plate (11) and is fixed with a limit block (20); and each spring 2 (18) is movably sleeved on the outer surface of a corresponding guide column (19).

5. A grain harvester according to claim 1, characterized in that: A slot (23) for cooperating with the insert block (22) is provided at the end of the lifting rod (7).

6. A grain harvester according to claim 1, characterized in that: Each of the elastic reset units (3) comprises a connecting block (24) fixed to the upper and lower end surfaces of the insert block (22), and a spring (25) is fixed between each connecting block (24) and the connecting seat (21).

7. A grain harvester according to claim 1, characterized in that: Each of the handrail frames (4) is provided with a pulley set four (29) for use with the pull rope two (26) on one side.

8. A grain harvester according to claim 1, characterized in that: The grain harvester body (1) further comprises a frame (30) and a double-screw auger (31); a special-shaped mounting seat (32) is fixed to the upper end surface of the frame (30); a mounting cylinder (33) is fixed to one side of the special-shaped mounting seat (32); and an exhaust fan blade group (34) is rotatably arranged in the mounting cylinder (33).

9. A grain harvester according to claim 8, characterized in that: One end of the central axis of the double-helical auger (31) is rotatably inserted through the frame (30) and is fixedly sleeved with a sprocket wheel 1 (35); a fixed sleeve is provided with a sprocket wheel 2 (36) on the outer surface of one end of the central axis of the exhaust fan blade group (34); and a chain (37) is rotatably provided between the sprocket wheel 1 (35) and the sprocket wheel 2 (36).

10. A method for operating a grain harvester, applied to a grain harvester according to any one of claims 1 to 9, characterized in that: The specific steps are as follows: Step 1: First, a plurality of empty packaging bags are inserted and sleeved on each pair of bag-supporting rods (8), and then the bag opening of the outermost packaging bag is sleeved on the lower outer surface of the corresponding vertical dispensing cylinder (2), and the grain harvester body (1) collects and transports the grains through the vertical dispensing cylinder (2) and drops them into the packaging bags, and the grains are bagged and collected; Step 2: when the packaging bag is full, the vertical dispensing cylinder (2) is blocked, and then the limit fixing of the lifting rod (7) is released by the limit assembly, and then, under the action of the driving assembly, the lifting rod (7) is urged to move downward for a certain distance with the bag-supporting rod (8), so that the corresponding bag-supporting rod (8) no longer supports the bag opening of the packaging bag filled with grains upward; Step three, remove the packaging bag filled with grains from the carrier frame (3) by horizontal movement.

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