Small pearl barley harvester

Abstract

The invention relates to the technical field of agricultural machinery, in particular to a small pearl barley harvester. The harvester comprises a harvester body, and the harvester body is composed of a supporting frame and harvesting, conveying, threshing and collecting assemblies installed on the supporting frame. The harvesting assembly performs segmented cutting through three cutting blades, and coix seed stalks are accurately cut out; a composite wheel of the grain lifting wheel assembly rotates anticlockwise, and coix seeds are gathered and then conveyed through the clamping conveying belt assembly; according to the threshing assembly, nylon brushes on a threshing rotary drum roll oppositely, and a parallelogram assembly moves in a matched mode to achieve efficient threshing. The horizontal conveying belt separates waste straw, the lifting conveyor lifts and collects coix seeds, a control system arranged on the harvester body achieves remote control through Bluetooth, working parameters of all assemblies can be adjusted in real time, and the state can be monitored. The harvester integrates coix seed harvesting, threshing and collecting, is high in efficiency and adaptability, can effectively reduce the cost, and is suitable for coix seed planting areas in different terrains.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and particularly relates to a small coix harvester. Background Art

[0002] As an important crop with both edible and medicinal values, coix is widely planted in China. However, the harvesting process of coix has long faced many difficulties. The traditional manual harvesting method still dominates today, with extremely low efficiency. A skilled worker can only harvest a small amount of coix in a day. Facing large-scale planted fields, it not only takes a long time but also requires a large amount of labor cost, greatly restricting the large-scale development of coix planting. At the same time, manual harvesting has a very high labor intensity. Long-term bending operations are likely to cause physical injuries such as lumbar muscle strain, and it is difficult to ensure the consistency and accuracy of harvesting by manual operation, resulting in problems such as coix seeds falling off and uneven cutting of the stalks, causing food waste.

[0003] With the advancement of agricultural mechanization, although some general-purpose harvesters have been applied to coix harvesting, the results are not good. Most of these harvesters are designed for crops such as rice and wheat, and their cutting, threshing and other structures are difficult to adapt to the characteristics of coix stalks being tough and the special distribution of spike grains. In actual operation, there are often situations where coix stalks are difficult to cut and threshing is incomplete, and the remaining grains need secondary processing, increasing production costs. In addition, existing harvesters generally have the problems of large volume and complex structure, and cannot operate flexibly in small or complex terrain plots such as narrow ridges and mountain terraced fields. Moreover, the equipment is expensive and the maintenance cost is high. For the majority of small and medium-sized coix growers, the applicability and economy are not ideal. Therefore, developing a small harvester specifically designed for coix, which is efficient and practical, has become an urgent need in the industry. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above problems and provide a small coix harvester. To achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A small coix harvester includes a harvester main body, and the harvester main body includes a support frame, a harvesting component, a conveying component, a threshing component, and a collecting component. The harvesting component, the conveying component, the threshing component, and the collecting component are arranged on the support frame. The harvesting component includes a cutting blade. The conveying component includes a horizontal conveyor belt, a reel assembly, and a clamping conveyor belt assembly. The threshing component includes a threshing brush cylinder. The collecting component includes a lifting conveyor. The cutting blade is arranged at the bottom of the front end of the harvester main body. The reel assembly and the clamping conveyor belt assembly are arranged above the cutting blade. The reel assembly is arranged on both sides of the front end of the clamping conveyor belt assembly. The threshing brush cylinder is arranged above the clamping conveyor belt assembly. The horizontal conveyor belt is vertically arranged behind the clamping conveyor belt assembly. The lifting conveyor is arranged behind the horizontal conveyor belt.

[0006] As an improvement, the cutting blade includes two first cutting blades and one second cutting blade. The first cutting blades are arranged below the reel assembly, and the second cutting blade is arranged below the front end of the clamping conveyor belt assembly. The harvesting assembly further includes a first motor fixed on the support frame, and the cutting blade is arranged on the first motor.

[0007] As an improvement, the reel assembly includes two reel shafts and a second motor. Two upper reels and two lower reels are arranged on the reel shafts. The clamping conveyor belt assembly is arranged between the upper reels and the lower reels. The second motor is arranged at the top of the reel shaft and fixed on the support frame. The reel shaft is rotatably arranged on the support frame, and the reel shaft rotates inward.

[0008] As an improvement, the clamping conveyor belt assembly includes two clamping conveyor belts which are symmetrically arranged and vertically arranged. A first roller, a second roller and a third roller are successively arranged on the clamping conveyor belt from front to back. The diameter of the first roller is smaller than that of the second roller, and the diameter of the second roller is equal to that of the third roller. The first roller, the second roller and the third roller are rotatably arranged on the support frame. A third motor is arranged on the third roller and fixed on the support frame.

[0009] As an improvement, the threshing brush cylinder includes two pairs of threshing rotating cylinders which are symmetrically arranged left and right. The threshing rotating cylinders are rotatably arranged on the support frame. Nylon brushes are evenly arranged on the threshing rotating cylinders. A parallelogram assembly is arranged at the top of the threshing rotating cylinder.

[0010] As an improvement, the parallelogram assembly includes two gears and two pairs of connecting rod assemblies. The connecting rod assembly includes a short connecting rod and a long connecting rod. The short connecting rod is rotatably arranged at both ends of the long connecting rod. The gears include a driving gear and a driven gear. The driving gear and the driven gear are respectively arranged on two symmetrically arranged left and right threshing rotating cylinders. The short connecting rods at both ends of the long connecting rod are arranged on the two threshing rotating cylinders on the same side. The gear is fixed on the short connecting rod at one end of the long connecting rod. On one of the threshing rotating cylinders where the short connecting rod at one end of the long connecting rod is located, a fourth motor is arranged at the bottom of the other threshing rotating cylinder on the same side as the threshing rotating cylinder where the driving gear is located, and the fourth motor is fixed on the support frame.

[0011] As an improvement, one side of the horizontal conveyor belt is arranged below the end of the clamping conveyor belt assembly. The horizontal conveyor belt is arranged on the support frame, and a fifth motor is arranged at one end of the horizontal conveyor belt.

[0012] As an improvement, the elevating conveyor includes an elevating belt and bearing sleeves. The bearing sleeves are arranged on both sides of the elevating belt. The elevating belt is arranged in an obtuse-angled fold. The front end of the elevating belt is arranged below the rear side of the horizontal conveyor belt. A number of rolling cylinders are sleeved inside the elevating belt. Limiting rollers are arranged on both sides of the folding part of the elevating belt. The limiting rollers are fixed on the bearing sleeves. A number of baffle plates are evenly arranged on the elevating belt.

[0013] As an improvement, moving wheels are arranged at the bottom of the support frame, and acrylic plates are arranged on both sides of the support frame.

[0014] As an improvement, the harvester main body is also provided with a control system, and the control system is electrically connected to the harvesting assembly, the conveying assembly, the threshing assembly, and the collecting assembly.

[0015] The advantages of the present invention are as follows:

[0016] 1. The present invention realizes integrated automatic operations of harvesting, threshing, and collecting. Compared with manual harvesting, the efficiency is increased several times, the harvesting time of coix seeds is greatly shortened, the labor input is reduced, and the planting cost is lowered. Taking the common planting scale as an example, using this harvester can reduce the harvesting cost per mu.

[0017] 2. The segmented cutting blades, the uniquely designed reel assembly and the clamping conveyor belt assembly of the present invention ensure that the coix seed stalks are cut neatly and conveyed stably, effectively reducing the loss of grain dropping; the nylon brush counter-rolling and parallelogram motion design of the threshing assembly have a significantly higher threshing rate than traditional harvesters, reducing the subsequent cleaning and processing costs and improving the coix seed harvesting quality and yield.

[0018] 3. The equipment of the present invention is small in size and compact in structure. The moving wheels at the bottom enable it to move flexibly in complex terrains such as narrow field ridges and mountain terraced fields, overcoming the terrain limitations of large harvesters, being applicable to various coix seed planting areas, and having strong versatility. Description of the Drawings

[0019] Figure 1 It is the structure of a small coix seed harvester in Embodiment 1 Figure 1 。

[0020] Figure 2 It is the structure of a small coix seed harvester in Embodiment 1 Figure 2 。

[0021] Figure 3 It is the side view of a small coix seed harvester in Embodiment 1.

[0022] Figure 4 It is the side view of the harvesting assembly in Embodiment 1.

[0023] Figure 5 It is the structure diagram of the harvesting assembly in Embodiment 1.

[0024] Figure 6 It is a structural diagram of the clamping conveyor belt assembly in Embodiment 1.

[0025] Figure 7 It is a structural diagram of the threshing assembly in Embodiment 1.

[0026] Figure 8 It is a structural diagram of the horizontal conveyor belt in Embodiment 1.

[0027] Figure 9 It is a structural diagram of the collection assembly in Embodiment 1.

[0028] The identifications in the figure are:

[0029] 1. Harvester main body; 2. Support frame; 3. Harvesting assembly; 4. Horizontal conveyor belt; 5. Reel assembly; 6. Clamping conveyor belt assembly; 7. Threshing assembly; 8. Collection assembly;

[0030] 21. Moving wheels; 22. Acrylic board;

[0031] 31. First cutting blade; 32. Second cutting blade; 33. First motor;

[0032] 41. Fifth motor;

[0033] 51. Reel shaft; 52. Second motor; 53. Upper reel; 54. Lower reel;

[0034] 61. Clamping conveyor belt; 62. First roller; 63. Second roller; 64. Third roller; 65. Third motor;

[0035] 71. Threshing drum; 72. Nylon brush; 73. Driving gear; 74. Driven gear; 75. Short connecting rod; 76. Long connecting rod; 77. Fourth motor;

[0036] 81. Elevating conveyor; 82. Elevating belt; 83. Bearing sleeve; 84. Rolling drum; 85. Limiting drum; 86. Baffle. Detailed implementation manners

[0037] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated herein can be arranged and designed in various different configurations.

[0038] In the description of the embodiments of the present invention, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed during use. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0039] In addition, if terms such as "horizontal", "vertical", "hanging" are used, it does not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and it does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0040] In the description of the embodiments of the present invention, "a plurality of" represents at least two.

[0041] In the description of the embodiments of the present invention, it should also be noted that unless otherwise clearly specified and limited, if terms such as "set", "installed", "connected", "connected" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0042] The present invention will be introduced in detail and specifically through specific embodiments below to better understand the present invention. However, the following embodiments do not limit the protection scope of the present invention.

[0043] Embodiment 1

[0044] This embodiment discloses a small coix harvester.

[0045] As Figures 1 to 9 shown, this embodiment includes a harvester main body 1, and the harvester main body 1 includes a support frame 2, a harvesting assembly 3, a conveying assembly, a threshing assembly 7, and a collecting assembly 8. The support frame 2 provides stable support for other components, and moving wheels 21 are installed at the bottom for easy movement in the field. Acrylic plates 22 are provided on both sides, which not only protect the safety of the operator but also facilitate observing the internal working conditions of the machine. The harvesting assembly 3, the conveying assembly, the threshing assembly 7, and the collecting assembly 8 are orderly installed on the support frame 2 to cooperate to complete the coix harvesting operation.

[0046] Harvesting component 3: The harvesting component 3 realizes segmented cutting with three cutting blades to accurately intercept the effective length. Two of the first cutting blades 31 are located below the reel component 5 to initially cut the coix stems; one second cutting blade 32 is arranged below the front end of the clamping conveyor belt component 6 for secondary cutting to ensure clean and neat cutting. The first motor 33 is fixed to the support frame 2 to drive the cutting blades to rotate at high speed, providing power for the cutting operation.

[0047] Conveyor component

[0048] Reel component 5: It consists of two reel shafts 51 and a second motor 52. Each reel shaft 51 is equipped with two upper reels 53 and two lower reels 54. The four pairs of composite wheels in the upper and lower layers rotate counterclockwise inward and form a specific height difference. This design can effectively gather the randomly growing coix rods, comb them neatly and guide them to the clamping conveyor belt component 6 to ensure smooth subsequent transportation.

[0049] Clamping conveyor belt component 6: This component is composed of two symmetrically arranged vertical clamping conveyor belts 61. The conveyor belts are successively provided with a first roller 62, a second roller 63, and a third roller 64 from front to back. The diameter of the first roller 62 is smaller than that of the second roller 63, and the diameters of the second roller 63 and the third roller 64 are equal. This design of the roller diameter difference causes a change in tension when the clamping conveyor belt 61 operates, thereby clamping the coix rods more forcefully to prevent slipping or deviation during transportation. The third motor 65 is installed on the third roller 64 to drive the clamping conveyor belt 61 to operate and convey the coix stems backward to the threshing component 7.

[0050] Horizontal conveyor belt 4: It is vertically arranged behind the clamping conveyor belt component 6, and one side receives the materials conveyed by the end of the clamping conveyor belt component 6. The fifth motor 41 drives the horizontal conveyor belt 4 to operate, transporting the waste straw after threshing laterally to separate the straw from the coix seeds, facilitating subsequent cleaning.

[0051] Threshing Component 7: The core of the threshing component 7 is the threshing brush cylinder and the parallelogram component. The threshing brush cylinder consists of two pairs of symmetrically arranged threshing rotating cylinders 71 on the left and right, and the surface of the rotating cylinder is evenly covered with nylon brushes 72. During operation, the two pairs of threshing rotating cylinders 71 rotate against each other, and the nylon brushes 72 generate frictional force to make the coix seeds fall off from the stalks. The parallelogram component includes two gears (the driving gear 73 and the driven gear 74), and two pairs of connecting rod components (the short connecting rod 75 and the long connecting rod 76). The short connecting rod 75 is rotatably connected to both ends of the long connecting rod 76. The driving gear 73 and the driven gear 74 are respectively installed on the symmetric threshing rotating cylinders 71. Both ends of the long connecting rod 76 are connected to the threshing rotating cylinder 71 on the same side by the short connecting rod 75, and the gear is fixed to the short connecting rod 75 at one end of the long connecting rod 76. The fourth motor 77 drives the threshing rotating cylinder 71 where the driving gear 73 is located. Through gear transmission and the movement of the connecting rod mechanism, the threshing rotating cylinder 71 moves, increasing the contact area and time between the nylon brush 72 and the coix stalks, improving the threshing efficiency and effect, and ensuring that the seeds fall off completely.

[0052] Collection Component 8: The lifting conveyor 81 serves as the main body of the collection component 8 and is composed of a lifting belt 82 and a bearing sleeve 83. The lifting belt 82 is arranged in an obtuse-angle fold, and the front end is located below the rear side of the horizontal conveyor belt 4, used to receive the threshed coix. Multiple rolling cylinders 84 are sleeved inside the lifting belt 82 to provide operating power and support. Limiting rollers 85 are provided on both sides of the folding part and fixed to the bearing sleeve 83 to limit the movement trajectory of the lifting belt 82 and prevent deviation. Baffles 86 are evenly distributed on the lifting belt 82, effectively preventing the coix from falling during transportation. After the coix is successfully lifted to a certain height, it falls into the collection box at the end of the device to complete the collection operation.

[0053] Control System: The main body 1 of the harvester is equipped with a single-chip microcomputer co-execution system, which establishes connections with the harvesting component 3, the conveying component, the threshing component 7, and the collection component 8 through electrical connections. The system integrates a Bluetooth module, and the operator can remotely control the operation of each component through terminal devices such as mobile phones, and adjust the working parameters in real time, such as the cutting speed, the conveying rate, the threshing force, etc. At the same time, the control system monitors the working status of each component in real time. Once an abnormality occurs (such as motor overload, conveyor belt jamming, etc.), it immediately issues an alarm and takes shutdown protection measures to ensure the safe and stable operation of the equipment.

[0054] The specific embodiments of the present invention have been described in detail above, but they are only examples, and the present invention is not equivalent to the specific embodiments described above. For those skilled in the art, any equivalent modifications and substitutions made to the present invention are also within the scope of the present invention. Therefore, equivalent transformations and modifications made without departing from the spirit and scope of the present invention should be covered within the scope of the present invention.

Claims

1. A small coix seed harvester, characterized in that, It includes a harvester main body (1), and the harvester main body (1) includes a support frame (2), a harvesting assembly (3), a conveying assembly, a threshing assembly (7), and a collection assembly (8). The harvesting assembly (3), the conveying assembly, the threshing assembly (7), and the collection assembly (8) are arranged on the support frame (2). The harvesting assembly (3) includes cutting blades. The conveying assembly includes a horizontal conveyor belt (4), a reel assembly (5), and a clamping conveyor belt assembly (6). The threshing assembly (7) includes a threshing brush cylinder. The collection assembly (8) includes a lifting conveyor (81). The cutting blades are arranged at the front bottom of the harvester main body (1). The reel assembly (5) and the clamping conveyor belt assembly (6) are arranged above the cutting blades. The reel assembly (5) is arranged on both sides at the front end of the clamping conveyor belt assembly (6). The threshing brush cylinder is arranged above the clamping conveyor belt assembly (6). The horizontal conveyor belt (4) is vertically arranged behind the clamping conveyor belt assembly (6). The lifting conveyor (81) is arranged behind the horizontal conveyor belt (4).

2. The small coix harvester according to claim 1, wherein The cutting blades include two first cutting blades (31) and one second cutting blade (32). The first cutting blades (31) are arranged below the reel assembly (5). The second cutting blade (32) is arranged below the front end of the clamping conveyor belt assembly (6). The harvesting assembly (3) further includes a first motor (33). The first motor (33) is fixed on the support frame (2). The cutting blades are arranged on the first motor (33).

3. The small coix harvester according to claim 2, characterized in that, The reel assembly (5) includes two reel shafts (51) and a second motor (52). Two upper reels (53) and two lower reels (54) are arranged on the reel shafts (51). The clamping conveyor belt assembly (6) is arranged between the upper reels (53) and the lower reels (54). The second motor (52) is arranged at the top of the reel shaft (51). The second motor (52) is fixed on the support frame (2). The reel shafts (51) are rotatably arranged on the support frame (2). The reel shafts (51) rotate inwardly.

4. The small coix harvester according to claim 3, characterized in that, The clamping conveyor belt assembly (6) includes two clamping conveyor belts (61). The two clamping conveyor belts (61) are symmetrically arranged. The clamping conveyor belts (61) are vertically arranged. A first roller (62), a second roller (63), and a third roller (64) are sequentially arranged on the clamping conveyor belts (61) from front to back. The diameter of the first roller (62) is smaller than that of the second roller (63). The diameter of the second roller (63) is equal to that of the third roller (64). The first roller (62), the second roller (63), and the third roller (64) are rotatably arranged on the support frame (2). A third motor (65) is arranged on the third roller (64). The third motor (65) is fixed on the support frame (2).

5. The small coix harvester according to claim 4, characterized in that, The threshing brush cylinder includes two pairs of threshing rotating cylinders (71), the two pairs of threshing rotating cylinders (71) are symmetrically arranged left and right, the threshing rotating cylinders (71) are rotatably arranged on the support frame (2), nylon brushes (72) are uniformly arranged on the threshing rotating cylinders (71), and a parallelogram assembly is arranged at the top of the threshing rotating cylinders (71).

6. The small coix harvester according to claim 5, wherein, The parallelogram assembly includes two gears and two pairs of connecting rod assemblies. The connecting rod assemblies include short connecting rods (75) and long connecting rods (76). The short connecting rods (75) are rotatably arranged at both ends of the long connecting rods (76). The gears include a driving gear (73) and a driven gear (74). The driving gear (73) and the driven gear (74) are respectively arranged on two symmetrically arranged left and right threshing rotating cylinders (71). The short connecting rods (75) at both ends of the long connecting rods (76) are arranged on the two threshing rotating cylinders (71) on the same side. The gears are fixed on the short connecting rods (75) at one end of the long connecting rods (76). For the threshing rotating cylinder (71) of the short connecting rod (75) at one end of one of the long connecting rods (76), a fourth motor (77) is arranged at the bottom of another threshing rotating cylinder (71) on the same side as the threshing rotating cylinder (71) where the driving gear (73) is located. The fourth motor (77) is fixed on the support frame (2).

7. The small coix harvester according to claim 6, characterized in that, One side of the horizontal conveyor belt (4) is arranged below the end of the clamping conveyor belt assembly (6). The horizontal conveyor belt (4) is arranged on the support frame (2), and a fifth motor (41) is arranged at one end of the horizontal conveyor belt (4).

8. The small coix harvester according to claim 7, characterized in that, The elevating conveyor (81) includes an elevating belt (82) and bearing sleeves (83). The bearing sleeves (83) are arranged on both sides of the elevating belt (82). The elevating belt (82) is arranged in an obtuse angle folding manner. The front end of the elevating belt (82) is arranged below the rear side of the horizontal conveyor belt (4). A number of rolling cylinders (84) are sleeved inside the elevating belt (82). Limiting rollers (85) are arranged on both sides of the folding part of the elevating belt (82). The limiting rollers (85) are fixed on the bearing sleeves (83). A number of baffles (86) are uniformly arranged on the elevating belt (82).

9. The small coix seed harvester according to claim 8, wherein, Moving wheels (21) are arranged at the bottom of the support frame (2), and acrylic plates (22) are arranged on both sides of the support frame (2).

10. A small coix harvester according to claim 9, characterized in that, The harvester main body (1) is also provided with a control system, and the control system is electrically connected to the harvesting assembly (3), the conveying assembly, the threshing assembly (7), and the collecting assembly (8).

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