A rice post-harvest threshing device for agricultural use

Abstract

The utility model relates to rice harvesting technical field especially relates to a kind of rice harvesting post-dehulling device for agriculture, including base, one end of the base is fixed with side plate along two sides symmetry distribution, the upper end of the side plate along two sides distribution is fixedly installed with the article plate, the bearing is fixedly passed through on the side plate, the inside of the bearing along two sides distribution is all set with same shaft rod, the surface of the shaft rod is installed with the inner ring wall of bearing interference fit, the surface of the shaft rod is fixed with a plurality of struts. The scheme can be stably supported by the article plate the middle part or tail of the bale rice, so that only the end with grain is in contact with the rotating hook, the hook rotates at high speed under the driving of the shaft rod, and the rice ear is continuously hit to realize efficient threshing. The utility model avoids the physical consumption of holding rice stalk throughout the traditional manual threshing process, and farmers only need to place the rice to complete the threshing operation, which saves manpower and improves operation speed.

Description

Technical Field

[0001] This utility model relates to the field of rice harvesting technology, and in particular to a threshing device for agricultural rice harvesting. Background Technology

[0002] Rice is one of the world's most important food crops, with billions of people worldwide relying on it as their primary food source. Therefore, rice harvesting is crucial for ensuring food security and the livelihoods of farmers.

[0003] Rice harvesting is a crucial step in agricultural production, involving the harvesting of mature rice from the fields and its preparation for sale or storage. According to the authorized publication number "CN212232178U", an agricultural machinery component is disclosed, specifically relating to a combine harvester header body with a rice drying function. A combine harvester header body includes a main header frame and a drying mechanism. The drying mechanism includes a hot air device and an air inlet device. The hot air device is installed at the lower end of the main header frame, and the rice cut by the cutter is spread on the upper surface of the hot air device for drying. The air inlet device is located at the rear end of the main header frame, connecting the air supply mechanism and the hot air device. A rice conveying outlet is also provided at the rear end of the main header frame, through which the rice dried by the hot air device enters the rice conveyor. This utility model has the following advantages: 1. It solves the problem of blockage in the combine harvester conveying mechanism and threshing and cleaning device during high-humidity rice harvesting, reducing the germination and mold rate of rice and greatly improving production efficiency. 2. It has a simple structure, is easy to install, and has low cost.

[0004] Currently, rice harvesting requires threshing. In most plain areas, large harvesters and threshers are used. However, in some hilly areas, these large harvesters are limited by the terrain and cannot be used. Farmers then use small threshers to thresh rice. However, these threshers are still driven by foot pedals, which makes the operation more difficult for farmers. In addition, after threshing, it is also necessary to filter out impurities to reduce the time wasted by the crushed stone particles that are carried in during subsequent screening. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a threshing device for rice harvesting in agriculture.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a threshing device for rice harvesting in agriculture, comprising a base, side plates symmetrically distributed and fixed at one end of the base, a storage plate fixedly installed at the upper end of the side plates distributed on both sides, a bearing fixedly through the side plates, and the same shaft being provided through the interior of each bearing distributed on both sides, the surface of the shaft being interference-fitted with the inner ring wall of the bearing;

[0007] The shaft has several support columns fixedly distributed on its surface. Two of the support columns distributed along the same horizontal plane have a connecting rod installed at their ends. The connecting rod has a hook ring fixedly distributed on the side away from the support column for disengagement.

[0008] One end of the shaft is equipped with a motor, the outer ring wall of the motor is fixed to the surface of the side plate by a bracket, and the motor is equipped with a drive shaft inside, and the end of the drive shaft is fixedly connected to the shaft by a coupling.

[0009] Preferably, an extension plate is fixed to the upper end of the side plate, and a baffle is fixed to the extension plates distributed along both sides, and the extension plates and the baffles form a cover structure.

[0010] Preferably, the base is also symmetrically fixed with support plates on both sides, and a number of inner sleeves are fixedly distributed on the surface of the support plates, with connecting rods slidably connected inside the inner sleeves.

[0011] Preferably, an anti-detachment plate is fixedly installed at the outward end of the connecting rod, and a spring is also wrapped around the surface of the connecting rod. The two ends of the spring are fixedly installed to the end face of the inner sleeve and the surface of the anti-detachment plate, respectively.

[0012] Preferably, the connecting rods distributed along both sides are connected to the same ramp plate at the ends away from the anti-detachment plate. The ramp plate has an inclination angle of 40 degrees and a number of screening holes penetrating its interior are opened on the surface of the ramp plate.

[0013] Preferably, a second motor is fixed to one side of the upper end of the base by a bracket. The second motor has a second rotating shaft for driving inside, and an eccentric wheel is fixedly installed at the end of the second rotating shaft.

[0014] Preferably, the surfaces of several anti-detachment plates distributed on one side are all fitted with the same extrusion plate, and the proximal and distal ends of the eccentric wheel are always in contact with and extruded against the surface of the extrusion plate.

[0015] The design scheme proposed in this utility model has the following beneficial effects in application:

[0016] 1. This solution uses a placement board to stably support the middle or tail of bundled rice, so that only the end with grains comes into contact with the rotating hook. The hook rotates at high speed under the drive of the shaft, continuously striking the rice ears to achieve efficient threshing. This avoids the physical exertion of holding the rice stalks the whole time in traditional manual threshing. Farmers only need to place the rice to complete the threshing operation, which saves manpower and increases the speed of operation.

[0017] 2. As described in 1, the protective cover composed of the extension plate and the baffle can completely cover the threshing area to prevent the rice grains falling at high speed from flying around. The ramp plate, together with the reciprocating vibration mechanism driven by the eccentric wheel, not only realizes the automatic conveying of rice grains, but also separates debris and impurities in real time through the screening holes. This not only ensures the cleanliness of the work site, but also reduces the subsequent cleaning and screening process, and significantly improves the purity of rice grain collection. Attached Figure Description

[0018] Figure 1 This is a front view of the overall structure of this utility model;

[0019] Figure 2 This is a side view of the overall structure of this utility model;

[0020] Figure 3 This is a bottom view of the connecting rod and the bottom of the hook ring of this utility model;

[0021] Figure 4 This is a top view of the ramp slab and screening holes of this utility model.

[0022] In the diagram: 1. Base; 11. Side plate; 12. Shelf; 13. Bearing; 14. Shaft; 15. Support column; 16. Connecting rod; 17. Hook; 18. Motor 1; 2. Extension plate; 21. Baffle; 3. Support plate; 31. Internal sleeve; 32. Connecting rod; 33. Anti-detachment plate; 34. Spring; 35. Ramp plate; 36. Screening hole; 301. Motor 2; 302. Eccentric wheel; 303. Extrusion plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example 1

[0025] Reference Figures 1-4A threshing device for rice harvesting in agriculture includes a base 1. Side plates 11 are symmetrically distributed and fixed at one end of the base 1. A placement plate 12 is fixedly installed at the upper end of the side plates 11. A bearing 13 is fixed through the side plates 11. The same shaft 14 is installed through the interior of each bearing 13 distributed on both sides. The surface of the shaft 14 is interference-fitted with the inner ring wall of the bearing 13. The shaft 14 can rotate stably based on the bearing 13. When the rice is being threshed, the middle or tail of the bundled rice can be placed on the placement plate 12, which can save the farmer's physical strength, as only the grain-containing part at the end needs to contact the threshing part.

[0026] The surface of the shaft 14 is fixed with several support columns 15. The ends of two support columns 15 distributed along the same horizontal plane are jointly installed with connecting rods 16. The side of the connecting rod 16 away from the support column 15 is fixed with hooks 17 for detachment. When the shaft 14 rotates continuously, the connecting rods 16 connected to the support columns 15 can rotate. The hooks 17 carried on the multiple connecting rods 16 can continuously beat the rice grains when they come into contact with the grains at the end of the rice, so that the rice grains can be detached.

[0027] A motor 18 is provided at one end of the shaft 14. The outer ring wall of the motor 18 is fixed to the surface of the side plate 11 by a bracket. The motor 18 has a drive shaft inside, and the end of the drive shaft is fixedly connected to the shaft 14 by a coupling. When the power supply to the motor 18 is turned on, the motor 18 can make the drive shaft rotate, and the shaft 14 can rotate stably.

[0028] Among them, the upper end of the side plate 11 is also fixed with an extension plate 2, and the extension plates 2 distributed along both sides are jointly fixed with baffles 21. The extension plates 2 and the baffles 21 form a cover structure. When rice grains are continuously detached and thrown away by the hook ring 17, they can be blocked by the protective cover formed by the extension plates 2 and the baffles 21 to prevent them from splashing everywhere.

[0029] Among them, support plates 3 are symmetrically fixed on both sides of the base 1. Several inner sleeves 31 are fixedly distributed on the surface of the support plates 3. A connecting rod 32 is slidably connected inside the inner sleeve 31. The connecting rod 32 can slide inside the inner sleeve 31, so that the ramp plate 35 can maintain reciprocating stability when it moves left and right.

[0030] Among them, an anti-detachment plate 33 is fixedly installed on the outward end of the connecting rod 32, and a spring 34 is also wrapped on the surface of the connecting rod 32. The two ends of the spring 34 are fixedly installed on the end face of the inner sleeve 31 and the surface of the anti-detachment plate 33, respectively. When the ramp plate 35 moves back and forth, the spring 34 can work with the anti-detachment plate 33 to achieve a stable reset effect.

[0031] Among them, the connecting rods 32 distributed on both sides are connected to the same ramp plate 35 at the ends away from the anti-detachment plate 33. The ramp plate 35 has an inclination angle of 40 degrees. Several screening holes 36 are opened on the surface of the ramp plate 35. The ramp plate 35 can catch the fallen rice grains and make the rice grains gradually slide down through the reciprocating shaking effect. At the same time, the grains can be preliminarily screened through the screening holes 36, thereby reducing the subsequent screening work.

[0032] Among them, a second motor 301 is fixed to one side of the upper end of the base 1 by a bracket. The second motor 301 has a second rotating shaft for driving inside, and an eccentric wheel 302 is fixedly installed at the end of the second rotating shaft. After the second motor 301 is powered on, the second rotating shaft rotates and drives the eccentric wheel 302 to continuously and stably link together.

[0033] Among them, several anti-detachment plates 33 distributed on one side are all mounted on the same extrusion plate 303. The near and far ends of the eccentric wheel 302 are always in contact with the surface of the extrusion plate 303. When the ramp plate 35 needs to move to the reciprocating position, the motor 2 301 drives the eccentric wheel 302 to rotate through the rotating shaft 2. The near and far ends continuously and alternately contact the extrusion plate 303, and then slide in the inner sleeve 31 through the connecting rod 32, and the spring 34 is compressed or stretched to reset, so that the ramp plate 35 can move continuously and stably back and forth.

[0034] In practice

[0035] This solution uses a motor 18 to drive a rotating shaft 1 to rotate, which in turn drives the shaft 14 to rotate stably within the bearing 13. The support 15 on the surface of the shaft 14 moves with the rotation, causing the connecting rod 16 and the hook ring 17 to rotate synchronously. When the farmer places the middle or tail of the bundle of rice on the placement plate 12, the end of the rice with ears comes into contact with the high-speed rotating hook ring 17. The continuous striking of the hook ring 17 causes the grains to fall off the rice stalks. During the threshing process, the cover structure composed of the extension plate 2 and the baffle 21 effectively blocks the splashed grains, preventing them from scattering outside the device. The design of the placement plate 12 reduces the physical exertion of the farmer, who only needs to fix the non-threshing part of the rice to complete the operation. The fallen grains fall naturally to the ramp plate 35 under the action of gravity, while the sealing of the baffle 21 further ensures a clean and efficient threshing environment.

[0036] Motor 2 301 drives eccentric wheel 302 to rotate via shaft 2. The near and far ends of eccentric wheel 302 alternately squeeze extrusion plate 303, forcing anti-detachment plate 33 to slide within inner sleeve 31 via connecting rod 32, thereby driving ramp 35 to move horizontally back and forth. Spring 34 is compressed or stretched when connecting rod 32 is displaced, and pushes anti-detachment plate 33 to reset after eccentric wheel 302 is released from extrusion, forming a continuous and stable reciprocating motion. Ramp 35 is installed at a 40-degree angle. The screening holes 36 on the surface screen out fine impurities during vibration, while grains slide down the inclined surface to the collection area. This process not only achieves the initial separation of grains and impurities, but also accelerates grain flow through vibration to avoid accumulation. The cooperation between support plate 3 and inner sleeve 31 ensures the stability of ramp 35 movement and maximizes screening efficiency.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A threshing device for agricultural rice harvesting, comprising a base (1), characterized in that: One end of the base (1) is fixed with side plates (11) symmetrically distributed along both sides. The upper end of the side plates (11) distributed along both sides is fixed with a shelf (12). A bearing (13) is fixed through the side plate (11). The bearings (13) distributed along both sides are all provided with the same shaft (14). The surface of the shaft (14) is interference-fitted with the inner ring wall of the bearing (13). The surface of the shaft (14) is fixed with several support columns (15), and the ends of two support columns (15) distributed along the same horizontal plane are jointly installed with a connecting rod (16). The side of the connecting rod (16) away from the support column (15) is fixed with a hook (17) for disengagement. One end of the shaft (14) is provided with a motor (18). The outer ring wall of the motor (18) is fixed to the surface of the side plate (11) by a bracket. The motor (18) is provided with a drive shaft, and the end of the drive shaft and the shaft (14) are connected by a coupling for fixed transmission.

2. The threshing device for agricultural rice harvesting according to claim 1, characterized in that: An extension plate (2) is fixed to the upper end of the side plate (11), and a baffle (21) is fixed on the extension plates (2) distributed along both sides. The extension plates (2) and the baffle (21) form a cover structure.

3. A threshing device for agricultural rice harvesting according to claim 2, characterized in that: The base (1) is also symmetrically fixed with support plates (3) on both sides. Several inner sleeves (31) are fixedly distributed on the surface of the support plates (3). The inner sleeves (31) are slidably connected with connecting rods (32).

4. A threshing device for agricultural rice harvesting according to claim 3, characterized in that: An anti-detachment plate (33) is fixedly installed on the outward end of the connecting rod (32), and a spring (34) is also wrapped around the surface of the connecting rod (32). The two ends of the spring (34) are fixedly installed on the end face of the inner sleeve (31) and the surface of the anti-detachment plate (33), respectively.

5. A threshing device for agricultural rice harvesting according to claim 4, characterized in that: The connecting rods (32) distributed along both sides are connected to the same ramp plate (35) at the ends away from the anti-detachment plate (33). The ramp plate (35) has an inclination angle of forty degrees and a number of screening holes (36) penetrating its interior are opened on the surface of the ramp plate (35).

6. A threshing device for agricultural rice harvesting according to claim 5, characterized in that: The upper side of the base (1) is also fixed with a motor (301) by a bracket. The motor (301) has a rotating shaft for driving inside, and an eccentric wheel (302) is fixedly installed at the end of the rotating shaft.

7. A threshing device for agricultural rice harvesting according to claim 6, characterized in that: The surfaces of several anti-detachment plates (33) distributed on one side are all fitted with the same extrusion plate (303), and the near and far ends of the eccentric wheel (302) are always pressed against the surface of the extrusion plate (303).

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