Threshing machine for agricultural machinery

Abstract

The utility model discloses a threshing machine for agricultural machinery, and belongs to the technical field of threshing machines. Comprising a threshing box and a screening box, the threshing box and the screening box are fixedly connected, a threshing device and a dust collection mechanism are installed on the threshing box, baffles are fixedly arranged on the inner walls of the two sides of the threshing box, a plurality of dust collection holes are formed in the baffles, and the bottom ends of the baffles are jointly and fixedly connected with a conical shell; the bottom end of the conical shell is fixedly connected with a discharging pipe, the threshing device comprises a first motor, the first motor is fixedly installed on the threshing box, and the output end of the first motor is in transmission connection with a threshing roller, the threshing machine can efficiently and rapidly thresh mature grains from the threshing box, continuously and evenly discharge the grains into the screening box, the material blocking phenomenon can be avoided, and the threshing efficiency is improved. Two layers of sieve plates are combined to realize a grain sieving effect, stalks and impurities are respectively sieved, a dust collection effect can be realized, a floating dust diffusion phenomenon is reduced, and the surrounding environment quality is ensured.

Description

Technical Field

[0001] This application relates to the field of threshing machine technology, and more specifically, to a threshing machine for agricultural machinery. Background Technology

[0002] After grains are planted in agriculture, small threshing machines are needed for threshing. These machines separate the grains from the stalks, achieving a threshing effect, thus greatly reducing the labor intensity of grain harvesting and significantly improving agricultural productivity. They are widely used. A threshing machine, published under publication number CN220986734U, is described. This device uses a first motor and a fan. The first motor drives a crushing roller, which threshes the grain. Air is blown through an exhaust pipe to remove surface dust from the threshed grain, achieving automated threshing and removal of impurities. A second motor is also included... The spiral blades and filter screen, driven by a second motor, operate in conjunction with a second rotating rod to automatically transport the falling grains. The pressure rod and lower pressure ball work together to further screen the grains using a filter plate. However, the inventor believes the following drawbacks still exist in the aforementioned related technologies: In the threshing machines described in the literature, grains, stalks, and impurities fall directly into the drum after threshing, are conveyed upwards by the spiral blades, and discharged through the discharge pipe. This easily leads to stalk blockage. Furthermore, the sieving process relies solely on a single screen plate, which is insufficient to remove stalks and impurities from the grains, resulting in a mediocre sieving effect. Therefore, we propose a threshing machine for agricultural machinery. Utility Model Content

[0003] 1. Technical problems to be solved

[0004] The purpose of this application is to provide a threshing machine for agricultural machinery, which solves the technical problems in the prior art where, after threshing, grains, stalks, and impurities fall into a cylindrical container, are conveyed upwards by a spiral blade, and discharged through a discharge pipe, easily causing stalk blockage. Furthermore, the use of only one sieve plate for screening fails to remove stalks and impurities from the grains, resulting in mediocre screening efficiency. This threshing machine efficiently and quickly threshes mature grains, continuously and evenly discharging them into the screening box, avoiding blockage and achieving continuous threshing. It also incorporates two sieve plates to achieve effective grain screening, separately removing stalks and impurities, and provides dust collection, reducing dust diffusion and ensuring environmental quality.

[0005] 2. Technical Solution

[0006] This application provides a threshing machine for agricultural machinery, comprising: a threshing box and a screening box, the threshing box and the screening box being fixedly connected; a threshing device and a dust collection mechanism being installed on the threshing box; baffles being fixedly provided on the inner walls of both sides of the threshing box, and multiple dust collection holes being opened on the baffles; a conical shell being fixedly connected to the bottom end of the baffles; and a material discharge pipe being fixedly connected to the bottom end of the conical shell; the threshing device including a first motor, the first motor being fixedly installed on the threshing box, and a threshing roller being drivenly connected to its output end; the threshing roller being rotatably installed between the two baffles; and the screening box... A vibrating motor is fixed to the outer surface by bolts and threads. A first screen plate and a second screen plate are fixedly installed inside the screening box. The first screen plate and the second screen plate are distributed in a V-shape. An anti-blocking material feeding mechanism is installed on the screening box. The anti-blocking material feeding mechanism includes a rotating rod. The rotating rod is rotatably connected to the screening box, and a belt mechanism is connected between the rotating rod and the threshing roller. Two cams and an impeller are fixedly installed on the rotating rod. The impeller is rotatably installed in the discharge pipe. Each impeller is rotatably attached to a top rod. The top rod extends movably into the conical shell and is fixedly connected to a top plate.

[0007] By adopting the above technical solution, the threshing machine is composed of a threshing box and a screening box fixedly connected. The first motor drives the threshing roller to rotate at high speed, and the rotating rod is driven to rotate through the belt mechanism. The threshing roller is used to thresh the mature grains from the crop plants. The grains, stalks and impurities fall into the conical shell. The rotating rod drives two cams and an impeller to rotate. Because the impeller rotates in the discharge pipe at the bottom of the conical shell, the threshed grains can be evenly discharged onto the first screen plate. The impeller will cause the top rod and the top plate to move up and down repeatedly, so that the grains in the conical shell are repeatedly pushed and processed, which can avoid the phenomenon of material blockage. Under the action of the vibrating motor, the first screen plate and the second screen plate, which are distributed in a V-shape, can realize the grain screening work, avoiding the phenomenon of mixed grains in the discharged grains. The dust removal mechanism is installed at the threshing box to achieve the dust collection effect, and the dust is collected and discharged into the collection bag, which can reduce the diffusion of floating dust and ensure the quality of the surrounding environment.

[0008] Optionally, a lid is rotatably hinged to the upper end of the threshing box, and the lid is threadedly connected to the threshing box by bolts.

[0009] By adopting the above technical solution, the box cover can be installed by rotating hinge along the threshing box and fixed by bolts. The threshing roller can be maintained and cleaned by opening the box cover.

[0010] Optionally, the screening box is fixedly provided with a stalk discharge outlet at the first sieve plate, the screening box is fixedly provided with a grain discharge outlet at the second sieve plate, and four support legs are fixedly provided at the bottom of the screening box.

[0011] By adopting the above technical solution, the first screen plate can retain the stalks, which are discharged through the stalk discharge outlet. The second screen plate can retain the grains, which are discharged through the grain discharge outlet, while small particles of impurities fall to the ground for disposal.

[0012] Optionally, the top rod has a T-shaped cross-section, and a spring is fixedly connected between the circular block at the bottom of the top rod and the bottom surface of the conical shell.

[0013] By adopting the above technical solution, the spring is sleeved on the outside of the push rod, and the two ends are respectively fixedly connected to the round block at the bottom of the push rod and the bottom surface of the conical shell, so that when the cam rotates, the push rod can move up and down repeatedly.

[0014] Optionally, the dust collection mechanism includes a dust collection pump, which is fixed to the outer surface of the threshing box by bolts and threads. The dust collection pump is fixedly connected to a multi-port pipe and a dust discharge pipe, and the branches of the multi-port pipe all extend into the threshing box.

[0015] By adopting the above technical solution, the dust pump draws out floating dust from inside the threshing box through a multi-port pipe and transports it to the dust collection bag through the dust discharge pipe.

[0016] 3. Beneficial effects

[0017] One or more technical solutions provided in this application have at least the following technical effects or advantages: the threshing machine can efficiently and quickly thresh mature grains and continuously and evenly drop them into the screening box, avoiding material blockage and achieving continuous threshing. Combined with two layers of screen plates, it achieves the grain screening effect, removing stalks and impurities separately, and can achieve dust collection effect, reducing the spread of floating dust and ensuring the quality of the surrounding environment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a threshing machine for agricultural machinery disclosed in a preferred embodiment of this application;

[0019] Figure 2 This is a partial cross-sectional view of the threshing box and screening box of an agricultural machinery threshing machine disclosed in a preferred embodiment of this application;

[0020] Figure 3 This application discloses a preferred embodiment of an agricultural machinery threshing machine. Figure 2 Enlarged structural diagram at point A in the middle;

[0021] Figure 4 This is a schematic diagram of the vibration motor and dust collection mechanism of a threshing machine for agricultural machinery disclosed in a preferred embodiment of this application;

[0022] The following are the labels in the diagram: 1. Threshing box; 11. Box cover; 12. Baffle; 121. Dust suction hole; 13. Conical shell; 131. Material discharge pipe; 2. Screening box; 21. Stalk discharge outlet; 22. Grain discharge outlet; 23. Support leg; 24. First screen plate; 25. Second screen plate; 3. Threshing device; 31. First motor; 32. Threshing roller; 33. Belt mechanism; 4. Anti-blocking material feeding mechanism; 41. Rotating rod; 42. Impeller; 43. Cam; 44. Top rod; 441. Top plate; 45. Spring; 5. Vibrating motor; 6. Dust pump; 61. Multi-port pipe; 62. Dust discharge pipe. Detailed Implementation

[0023] The present application will be further described in detail below with reference to the accompanying drawings.

[0024] Reference Figures 1 to 4This application provides an agricultural machinery threshing machine, comprising: a threshing box 1 and a screening box 2, which are fixedly connected. A threshing device 3 and a dust collection mechanism are installed on the threshing box 1. Baffles 12 are fixedly provided on the inner walls of both sides of the threshing box 1, and multiple dust collection holes 121 are provided on the baffles 12. A conical shell 13 is fixedly connected to the bottom of the baffles 12, and a material discharge pipe 131 is fixedly connected to the bottom of the conical shell 13. The threshing device 3 includes a first motor 31, which is fixedly installed on the threshing box 1, and its output end is drivenly connected to a threshing roller 32. Roller 32 is rotatably mounted between two baffles 12. A vibrating motor 5 is fixed to the outer surface of the screening box 2 by bolts and threads. A first screen plate 24 and a second screen plate 25 are fixedly mounted inside the screening box 2. The first screen plate 24 and the second screen plate 25 are distributed in a V-shape. An anti-blocking material feeding mechanism 4 is installed on the screening box 2. The anti-blocking material feeding mechanism 4 includes a rotating rod 41, which is rotatably connected to the screening box 2. A belt mechanism 33 is connected between the rotating rod 41 and the threshing roller 32. Two cams 43 and an impeller 42 are fixedly mounted on the rotating rod 41. The impeller 42 is rotatably mounted on the material discharge point. Inside the tube 131, the impellers 42 are rotatably connected to the push rods 44. The push rods 44 extend movably into the conical shell 13 and are fixedly connected to the top plate 441. The body of the threshing machine is composed of a threshing box 1 and a screening box 2 fixedly connected. The first motor 31 drives the threshing rollers 32 to rotate at high speed, and drives the rotating rod 41 to rotate through the belt mechanism 33. The threshing rollers 32 thresh the mature grains from the crop plants. The grains, stalks and impurities fall into the conical shell 13. The rotating rod 41 drives two cams 43 and one impeller 42 to rotate. Because the impeller 42 rotates at the bottom of the conical shell 13... Inside the discharge pipe 131 at the end, the threshed grains can be evenly discharged onto the first screen plate 24. The impeller 42 will cause the top rod 44 and the top plate 441 to move up and down repeatedly, thereby repeatedly pushing the grains in the conical shell 13 to avoid material blockage. Under the action of the vibrating motor 5, the first screen plate 24 and the second screen plate 25, which are distributed in a V-shape, can realize the grain screening work and avoid the discharge of grains being mixed. The threshing box 1 is equipped with a dust removal mechanism to achieve the dust collection effect and centrally discharge the grains into the collection bag, which can reduce the diffusion of floating dust and ensure the quality of the surrounding environment.

[0025] Reference Figure 1 and Figure 2 A cover 11 is rotatably hinged to the upper end of the threshing box 1, and the cover 11 is threadedly connected to the threshing box 1 by bolts. The cover 11 can be rotatably hinged along the threshing box 1 and is fixed by bolts. The threshing roller 32 can be maintained and cleaned by opening the cover 11.

[0026] Reference Figure 2 and Figure 4The screening box 2 is fixedly provided with a stalk discharge outlet 21 at the first screen plate 24, and a grain discharge outlet 22 at the second screen plate 25. Four support legs 23 are fixedly provided at the bottom of the screening box 2. The first screen plate 24 can intercept the stalks, and the stalks are discharged through the stalk discharge outlet 21. The second screen plate 25 intercepts the grains, and the grains pass through the grain discharge outlet 22, while small particle impurities fall to the ground for disposal.

[0027] Reference Figure 2 and Figure 3 The push rod 44 has a T-shaped cross section. A spring 45 is fixedly connected between the round block at the bottom of the push rod 44 and the bottom surface of the conical shell 13. The spring 45 is sleeved on the outside of the push rod 44, and its two ends are fixedly connected to the round block at the bottom of the push rod 44 and the bottom surface of the conical shell 13, so that when the cam 43 rotates, the push rod 44 can move up and down repeatedly.

[0028] Reference Figure 4 The dust collection mechanism includes a dust pump 6, which is fixed to the outer surface of the threshing box 1 by bolts and threads. The dust pump 6 is fixedly connected to a multi-port pipe 61 and a dust discharge pipe 62. The branch pipes of the multi-port pipe 61 extend into the threshing box 1. The dust pump 6 draws out floating dust from inside the threshing box 1 through the multi-port pipe 61 and transports it to the dust collection bag through the dust discharge pipe 62.

[0029] Working principle: The threshing machine is composed of a threshing box 1 and a screening box 2 fixedly connected together. The first motor 31 drives the threshing roller 32 to rotate at high speed, and the belt mechanism 33 drives the rotating rod 41 to rotate. The threshing roller 32 threshes the mature grain from the crop plant. The grain, stalks and impurities fall into the conical shell 13. The rotating rod 41 drives two cams 43 and an impeller 42 to rotate. Because the impeller 42 rotates in the discharge pipe 131 at the bottom of the conical shell 13, the threshed grain can be evenly discharged to the second threshing box 13. On a sieve plate 24, the impeller 42 causes the top rod 44 and the top plate 441 to move up and down repeatedly, thereby repeatedly pushing and processing the grain in the conical shell 13, which can avoid material blockage. Under the action of the vibrating motor 5, the first sieve plate 24 and the second sieve plate 25, which are distributed in a V-shape, can realize the grain screening work and avoid the discharge of grains being mixed. The threshing box 1 is equipped with a dust removal mechanism to achieve the dust collection effect, and the dust is collected and discharged into the collection bag, which can reduce the diffusion of floating dust and ensure the quality of the surrounding environment.

Claims

1. A threshing machine for agricultural machinery, characterized in that: The system includes a threshing box (1) and a screening box (2), which are fixedly connected. The threshing box (1) is equipped with a threshing device (3) and a dust collection mechanism. Baffles (12) are fixedly provided on the inner walls of both sides of the threshing box (1), and multiple dust collection holes (121) are provided on the baffles (12). A conical shell (13) is fixedly connected to the bottom of the baffles (12), and a discharge pipe (131) is fixedly connected to the bottom of the conical shell (13). The threshing device (3) includes a first motor (31), which is fixedly installed on the threshing box (1) and has a threshing roller (32) connected to its output end. The threshing roller (32) is rotatably installed between the two baffles (12). A vibrating motor (5) is fixedly fixed to the outer surface of the screening box (2) by bolt threads. The screening box (2) is fixedly installed with a first screen plate (24) and a second screen plate (25). The first screen plate (24) and the second screen plate (25) are distributed in a V-shape. The screening box (2) is equipped with an anti-blocking material feeding mechanism (4). The anti-blocking material feeding mechanism (4) includes a rotating rod (41). The rotating rod (41) is rotatably connected to the screening box (2), and the rotating rod (41) is connected to the threshing roller (32) by a belt mechanism (33). The rotating rod (41) is fixedly provided with two cams (43) and an impeller (42). The impeller (42) is rotatably located in the discharge pipe (131). The impeller (42) is rotatably attached to a top rod (44). The top rod (44) extends movably into the conical shell (13) and is fixedly connected to a top plate (441).

2. The threshing machine for agricultural machinery according to claim 1, characterized in that: The threshing box (1) is hinged to a cover (11) at the upper end, and the cover (11) is threadedly connected to the threshing box (1) by bolts.

3. A threshing machine for agricultural machinery according to claim 1, characterized in that: The screening box (2) is fixedly provided with a stalk discharge outlet (21) at the first sieve plate (24), and a grain discharge outlet (22) is fixedly provided at the second sieve plate (25). The bottom of the screening box (2) is fixedly provided with four support legs (23).

4. A threshing machine for agricultural machinery according to claim 1, characterized in that: The top rod (44) has a T-shaped cross-section, and a spring (45) is fixedly connected between the round block at the bottom end of the top rod (44) and the bottom surface of the conical shell (13).

5. A threshing machine for agricultural machinery according to claim 1, characterized in that: The dust collection mechanism includes a dust pump (6), which is fixed to the outer surface of the threshing box (1) by bolts and threads. The dust pump (6) is fixedly connected to a multi-port pipe (61) and a dust discharge pipe (62). The branches of the multi-port pipe (61) all extend into the threshing box (1).

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