Small combine harvester special for mung beans

Abstract

The utility model relates to the field of agricultural machinery, in particular to a small combine harvester special for mung beans, which is used for solving the problems that manual harvesting of mung beans in hills and mountains is low in efficiency and high in cost and traditional machinery is not applicable. The harvester comprises a chassis, a control system based on Arduino UNO, a harvesting mechanism, a conveying mechanism, a threshing mechanism and a cleaning mechanism. The harvesting mechanism is located in front of the chassis; the conveying mechanism is located behind and used for conveying the cut plants; the threshing mechanism is located on the upper side of the cleaning mechanism, and stalks and pods are separated through centrifugal force generated by rotation of a threshing roller; the cleaning mechanism is arranged on the upper side of the chassis and is driven by a belt wheel and a gear, and vibration of a combined sieve is matched with airflow of a cross-flow fan to separate pod shells from mung bean seeds; the chassis is provided with a storage box for storing mung beans. Working of the whole machine is remotely controlled by mobile phone software. Through threshing and harvesting integration, the efficiency is improved, and the mung bean quality is kept; the structure is compact and adapts to hilly terrains; the remote operation simplifies the control difficulty and improves the working environment of workers.

Description

Technical Field

[0001] This project belongs to the field of agricultural machinery, specifically involving a small mung bean special combine harvester. Background Art

[0002] Currently, mung beans are harvested manually in most production areas of my country. Only specially cultivated varieties can be grown on plains and harvested with large machinery. Mechanized production is the current trend in crop production. In the early 21st century, due to the small scale and low labor costs of mung bean cultivation, most planting, management, and harvesting were done manually. In recent years, with rising labor costs and agricultural inputs, the profitability of mung bean cultivation has declined significantly. The low level of mechanization in mung bean cultivation, high planting costs, and low profitability are the main reasons for the annual increase in mung bean imports and the gradual decline in cultivated area in my country. Mechanized production, especially mechanized harvesting, has become a key factor restricting the expansion of mung bean cultivation and improving its profitability. Mung bean breeding in my country started late. Previous mung bean varieties had significant variations in the maturity period of pods on the same plant, and the pods automatically split after maturity, making mechanical harvesting very difficult. In recent years, a series of new varieties have been developed in China that mature at the same time, have upright pods that do not burst, and are suitable for mechanized harvesting, significantly advancing the development of mechanized mung bean harvesting. Since the 13th Five-Year Plan, the national edible bean industry technology system has developed a number of mung bean varieties suitable for mechanized harvesting in response to key issues and production needs that restrict the development of the industry, such as Jin Mung Bean No. 8, Ji Lv 19, Ji Lv 10, Zhong Lv 23 and Bing Lv 9. These varieties have upright and compact plant shapes, high pod-setting positions, small branching angles, concentrated pods, uniform maturity, and no pod bursting or grain shedding in the late stage of maturity. They are very suitable for mechanized harvesting. Through promotion and application, they can solve problems such as high production costs and low planting benefits.

[0003] It can be seen that the current mechanized harvesting is only suitable for these special small varieties and is not suitable for mung bean harvesting in most areas, such as mountainous areas, hilly areas, terraced fields, etc., and the efficiency of mung bean harvesting is still a problem. Combined harvesters can complete the tasks of harvesting, threshing, cleaning and collecting crops in one go, saving labor costs and improving work efficiency. They are an indispensable part of promoting the development of agricultural machinery and promoting the modernization of my country's agriculture. The hilly and mountainous areas in southern my country have small and scattered plots, the overall terrain is steep, and the soil is heavy and sticky. They are not suitable for the widespread operation of medium and large combine harvesters in plain areas. Traditional manual harvesting has disadvantages such as low work efficiency, high labor intensity and high production costs. Mountainous areas are now facing a labor shortage dilemma, so it is necessary to design combine harvesters suitable for hilly and mountainous areas. Utility Model Content

[0004] The present utility model is to provide a small-sized mung bean-specific harvester, the purpose of which is to solve the problems of low efficiency of manual mung bean harvesting in hilly and mountainous areas, unsuitability of traditional machinery for hilly and mountainous areas, and to improve the problems of low efficiency, high labor intensity, and high production cost of traditional mung bean harvesting. In order to adapt to the unique hilly and mountainous terrain characteristics, improve work efficiency, and improve the working environment of staff, the present utility model designs a small-sized mung bean-specific combine harvester. Through the design of the internal mechanism, multiple structures work together, and the control system realizes remote-controlled intelligent mung bean harvesting in hilly and mountainous areas, thereby improving the intelligence level of the mung bean harvester, ensuring continuous operation of the machine, improving harvesting efficiency, adapting to the environment of hilly and mountainous areas and achieving large-scale harvesting, while also ensuring a high harvesting rate of mung beans and saving labor.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following scheme: a small mung bean special combine harvester, including a harvesting mechanism, a transmission mechanism, a threshing mechanism, a cleaning mechanism, and a chassis, characterized in that: the harvesting mechanism is located at the front end of the small mung bean special combine harvester, a transmission mechanism is directly connected to the harvesting mechanism and fixed to the front side of the threshing mechanism, a threshing mechanism is in contact with the transmission mechanism and fixed directly above the cleaning mechanism, a cleaning mechanism is located directly below the threshing mechanism and is directly connected to the threshing mechanism and fixed directly above the chassis, and a chassis is fixed to the cleaning mechanism and located directly below the cleaning mechanism.

[0006] As a further description of the above technical solution, the harvesting mechanism is equipped with two servo motors, which drive gear 1 to rotate. Gear 1 drives gear 2 engaged with it to rotate, and gear 2 drives the disc cutter to rotate to cut the mung bean plants. The reel is fixed by a bracket directly above the harvesting shovel. The reel is driven by a pulley to rotate so that the mung bean plants enter the harvesting shovel and are pushed to the spiral drum. The spiral drum is driven by the pulley to rotate so that the mung bean plants are pushed into the conveying mechanism by the spiral drum.

[0007] As a further description of the above technical solution, the conveying mechanism is composed of a conveyor belt and a conveyor mechanism shell. The conveyor belt is driven to rotate by a servo motor, and the mung bean plants are conveyed to the threshing mechanism through the conveyor belt.

[0008] As a further description of the above technical solution, the threshing mechanism is driven by a high-torque servo motor to rotate the threshing drum and cooperate with the U-shaped screen to separate the mung bean pods from the mung bean plants, and the mung bean pods fall into the cleaning mechanism under the action of gravity.

[0009] As a further description of the above technical solution, the cleaning mechanism is driven by a servo motor to drive the crank to rotate and drive the connecting rod to reciprocate up and down, the connecting rod drives the combination screen support rod to reciprocate up and down, and the combination screen support rod drives the combination screen to vibrate up and down to separate the mung beans from the mung bean pods. The mung bean pods are blown off by the cross-flow fan, and then the mung beans fall to the bottom of the cleaning mechanism, and are transmitted to the top of the storage box through the transmission auger rotation, and then the mung beans fall into the storage box to complete a harvest.

[0010] As a further description of the above technical solution, the chassis is moved by the rotation of the tires driven by the servo motor.

[0011] The utility model has the following advantages:

[0012] 1. The utility model combines threshing and harvesting into one mung bean harvester, which greatly improves harvesting efficiency. Compared with the traditional step-by-step operation, it saves time and labor costs.

[0013] 2. The utility model integrates threshing and harvesting for mung beans, threshing at the same time as harvesting, which can better maintain the quality of mung beans. It can effectively remove the shells of mung beans, reduce the occurrence of breakage and impurities, and improve the neatness and cleanliness of mung beans.

[0014] 3. In the present invention, the mung bean harvester with integrated threshing and harvesting functions can accurately identify and locate mung bean crops, avoid loss and waste, and ensure the timeliness and accuracy of harvesting.

[0015] 4. The mung bean harvester integrated with threshing and harvesting in this utility model is an automated agricultural machine that can achieve semi-autonomous driving and operation functions. It can operate according to preset programs and instructions without manual intervention, reducing the labor intensity of farmers.

[0016] 5. The use of the mung bean harvester with integrated threshing and harvesting functions in this utility model can improve the yield and quality of crops, reduce losses and waste, and thus bring more economic benefits to farmers. At the same time, it can also save labor costs and labor time, further improving farmers' income levels. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of a small mung bean special combine harvester proposed in the utility model;

[0018] Figure 2 This is a top view of the structure of a small mung bean special combine harvester of the utility model;

[0019] Figure 3 This is a bottom view of the structure of the small mung bean special combine harvester of the utility model;

[0020] Figure 4 This is a front view of the structure of the harvesting mechanism of the small mung bean special combine harvester of the utility model;

[0021] Figure 5 This is a structural cross-sectional view of the transmission mechanism of the small mung bean special combine harvester of the present utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the threshing mechanism of the small mung bean special combine harvester of the utility model (1);

[0023] Figure 7 This is a schematic diagram of the structure of the threshing mechanism of the small mung bean special combine harvester of the utility model (2);

[0024] Figure 8 This is a structural diagram of the cleaning mechanism of a small mung bean-specific combine harvester of the present utility model;

[0025] Figure 9 This is a structural diagram of the chassis of a small mung bean special combine harvester of the present utility model;

[0026] In the figure: 1-harvesting mechanism; 2-transmission mechanism; 3-threshing mechanism; 4-cleaning mechanism; 5-chassis; 6-harvesting shovel; 7-spiral drum; 8-pulley; 9-reel; 10-bracket; 11-small gear; 12-large gear; 13-disc cutter; 14-conveyor belt; 15-transmission mechanism housing; 16-threshing drum; 17-U-shaped screen; 18-combination screen; 19-crank; 20-connecting rod; 21-combination screen support rod; 22-crossflow fan; 23-transmission auger; 24-servo motor; 25-high torque servo motor; 26-tire; 27-storage box. DETAILED DESCRIPTION

[0027] Reference Figure 1-4A small mung bean special combine harvester includes 1. a harvesting mechanism; 2. a transmission mechanism; 3. a threshing mechanism; 4. a cleaning mechanism; 5. a chassis; 6. a harvesting shovel; 7. a spiral drum; 8. a pulley; 9. a reel; 10. a bracket; 11. a small gear; 12. a large gear; 13. a disc cutter; 14. a conveyor belt; 15. a transmission mechanism housing; 16. a threshing drum; 17. a U-shaped screen; 18. a combination screen; 19. a crank; 20. a connecting rod; 21. a support rod for the combination screen; 22. a crossflow fan; 23. a transmission augers; 24. a servo motor; 25. a high-torque servo motor; 26. a tire; 27. a storage box. The harvesting mechanism 1 is located at the front end of the small mung bean special combine harvester, a conveying mechanism 2 is directly connected to the harvesting mechanism 1 and is fixed on the front side of the threshing mechanism 3, a threshing mechanism 3 is in contact with the conveying mechanism 2 and is fixed directly above the cleaning mechanism 4, a cleaning mechanism 4 is located directly below the threshing mechanism 3 and is directly connected to the threshing mechanism 3 and fixed directly above the chassis 5, and a chassis 5 is fixed to the cleaning mechanism 4 and is located directly below the cleaning mechanism 4.

[0028] Furthermore, the harvesting mechanism 1 is driven by the servo motor 24 to drive the small gear 11 to rotate, the small gear 11 drives the large gear 12 meshing with it to rotate, and the large gear 12 drives the disc cutter 13 to rotate to cut the mung bean plants. The reel 9 is fixed by the bracket 10 just above the harvesting shovel 6, and the reel 9 is driven by the pulley 8 to rotate so that the mung bean plants enter the harvesting shovel 6 and are pushed to the spiral roller 7. The spiral roller 7 is driven by the pulley 8 to rotate so that the mung bean plants are pushed into the conveying mechanism 2 by the spiral roller 7.

[0029] Furthermore, the conveying mechanism 2 is composed of a conveyor belt 14 and a conveyor mechanism housing 15 . The conveyor belt 14 is driven to rotate by a servo motor 24 , and the mung bean plants are conveyed to the threshing mechanism 3 through the conveyor belt 14 .

[0030] Furthermore, the threshing mechanism 3 is driven by a high-torque servo motor 25 to rotate the threshing drum 16 and cooperate with the U-shaped screen 17 to separate the mung bean pods from the mung bean plants, and then the mung bean pods fall into the cleaning mechanism 4.

[0031] Furthermore, the cleaning mechanism 4 is driven by the servo motor 24 to drive the crank 19 to rotate and drive the connecting rod 20 to reciprocate up and down, the connecting rod 20 drives the combination screen support rod 21 to reciprocate up and down, and the combination screen support rod 21 drives the combination screen 18 to vibrate up and down to separate the mung beans from the mung bean pods, and the mung bean pods are blown off by the cross-flow fan 22, and then the mung beans fall to the bottom of the cleaning mechanism 4, and are transferred to the top of the storage box 27 by the transmission augers 23, and then the mung beans fall into the storage box 27.

[0032] Furthermore, the chassis 5 is moved by the servo motor 24 driving the tire 26 to rotate.

[0033] Working principle: During operation, the mung bean plants are first cut by the disc cutter 13, and the mung bean plants are pushed into the harvesting shovel 6 and pushed to the spiral drum 7 through the rotation of the reel wheel 9. The mung bean plants are pushed into the conveying mechanism 2 through the rotation of the spiral drum 7, and then the mung bean plants are conveyed to the threshing mechanism 3 through the conveyor belt. The stems and pods of the mung bean plants are separated by the rotation of the threshing drum 16 and the cooperation of the threshing drum 16 and the U-shaped screen 17, and the stems are discharged from the machine, and the pods fall into the cleaning mechanism 4 under the action of gravity. Then, the mung bean pods are separated from the mung beans through the up and down vibration of the combined screen 18 and the air flow through the cross-flow fan 22. The mung bean pods are discharged from the machine with the air flow, and the mung beans fall to the bottom of the cleaning mechanism 4 under the action of gravity. Then, the mung beans are conveyed to the top of the storage box 27 through the rotation of the transmission augers 23. The mung beans fall into the storage box 27 under the action of gravity, completing a harvest. At the same time, the small mung bean special combine harvester continues to move forward, turns around when encountering a ridge or land boundary, and moves the small mung bean special combine harvester to the next field after harvesting an entire field, repeating the above process.

Claims

1. A small mung bean special combine harvester, comprising a harvesting mechanism (1), a conveying mechanism (2), a threshing mechanism (3), a cleaning mechanism (4), and a chassis (5), characterized in that: The harvesting mechanism (1) is located at the front end of the small mung bean combine harvester, a transmission mechanism (2) is directly connected to the harvesting mechanism (1) and fixed to the front side of the threshing mechanism (3), a threshing mechanism (3) is in contact with the transmission mechanism (2) and fixed directly above the cleaning mechanism (4), a cleaning mechanism (4) is located directly below the threshing mechanism (3) and directly connected to the threshing mechanism (3) and fixed directly above the chassis (5), and a chassis (5) is fixed to the cleaning mechanism (4) and located directly below the cleaning mechanism (4).

2. The small mung bean special combine harvester according to claim 1, characterized in that: The harvesting mechanism (1) is driven by a servo motor (24) to rotate a gear 1 (11), which drives a gear 2 (12) meshing with the gear 1 (11) to rotate, and the gear 2 (12) drives a disc cutter (13) to rotate to cut the mung bean plants. The reel (9) is fixed by a bracket (10) just above the harvesting shovel (6), and the reel (9) is driven by a pulley (8) to rotate so that the mung bean plants enter the harvesting shovel (6) and are pushed to the spiral drum (7). The reel (7) is driven by the pulley (8) to rotate so that the mung bean plants are pushed into the conveying mechanism (2) by the spiral drum (7).

3. The small mung bean special combine harvester according to claim 1, characterized in that: The conveying mechanism (2) is composed of a conveyor belt (14) and a conveyor mechanism housing (15). The conveyor belt (14) is driven to rotate by a servo motor (24), and the mung bean plants are conveyed to the threshing mechanism (3) via the conveyor belt (14).

4. The small mung bean special combine harvester according to claim 1, characterized in that: The threshing mechanism (3) is driven by a high-torque servo motor (25) to rotate the threshing drum (16) and cooperate with the U-shaped screen (17) to separate the mung bean pods from the mung bean plants, and then the mung bean pods fall into the cleaning mechanism (4).

5. The small mung bean special combine harvester according to claim 1, characterized in that: The cleaning mechanism (4) is driven by a servo motor (24) to rotate a crank (19) to drive a connecting rod (20) to reciprocate up and down, and the connecting rod (20) drives the combined screen support rod (21) to reciprocate up and down, and the combined screen support rod (21) drives the combined screen (18) to vibrate up and down to separate the mung beans from the mung bean pods, and the mung bean pods are blown off by the cross-flow fan (22), and then the mung beans fall to the bottom of the cleaning mechanism (4), and are transferred to the top of the storage box (27) by the transmission agitator (23), and then the mung beans fall into the storage box (27).

6. The small mung bean special combine harvester according to claim 1, characterized in that: The chassis (5) is moved by the servo motor (24) driving the tire (26) to rotate.

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