Air closing device for self-propelled air suction feeding corn thresher

Abstract

The utility model relates to the technical field of air closing, in particular to an air closing device for a self-propelled air-suction feeding corn thresher, which comprises a motor, the motor is in transmission connection with an auger, a hollow barrel I is arranged outside the auger, one end of the barrel I far away from the motor is fixedly communicated with a barrel II, and the other end of the barrel II is fixedly communicated with an air inlet. The end, away from the first barrel, of the second barrel is fixedly communicated with a discharging square pipe, the end, away from the second barrel, of the discharging square pipe is provided with a cover plate, the tops of the discharging square pipe and the second barrel are hinged, the end, close to the cover plate, of the discharging square pipe is provided with a protrusion, and the end, away from the second barrel, of the discharging square pipe is sleeved with the cover plate. The auger driven by the motor can effectively push the materials to advance and accumulate the corns in the barrel II, so that an air closing effect is achieved, wind power waste caused by air return is avoided, the effect of the fan is improved, and the suction effect of the device on light materials can be improved; and through the discharging square pipe and the special-shaped cover plate, the air return phenomenon caused in the discharging process can be effectively prevented, and the effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of air-sealing technology, and in particular to an air-sealing device for a self-propelled wind-suction feeding corn thresher. Background Technology

[0002] The corn thresher is mainly used to thresh corn ears to improve the efficiency of corn harvesting. It features a high degree of automation, strong safety, simple operation, and low energy consumption.

[0003] Existing corn threshers typically use a suction method for feeding and an airlock for unloading. While this method is effective, the airlock causes backflow during unloading, affecting the fan's performance, wasting airflow, and making the thresher less effective at picking up lightweight materials.

[0004] Therefore, this application provides a closed-loop device for a self-propelled pneumatic feeding corn thresher to overcome the deficiencies of the prior art. Utility Model Content

[0005] The purpose of this invention is to solve the problem of air return in existing corn threshers, which affects the performance of the blower, wastes air volume, and makes the threshers poor at absorbing light materials.

[0006] This utility model provides a closed-loop device for a self-propelled pneumatic suction corn thresher, including a motor. The output end of the motor is connected to an auger via a gearbox. A hollow cylinder is provided outside the auger, and the cylinder is rotatably connected to a drive shaft. The end of the cylinder away from the motor is fixedly connected to a cylinder two. A through groove is provided in the cylinder two, passing through both ends of the cylinder two. The through groove is a hollow cylinder or frustum shape, and the diameter of the end away from the cylinder is not greater than the diameter of the end near the cylinder. The end of the cylinder two away from the cylinder one... A discharge square tube is fixedly connected to the cylinder. A cover plate is provided at the end of the discharge square tube away from the cylinder. The tops of the two are hinged together. A protrusion is provided at the end of the discharge square tube near the cover plate. The cover plate is adapted to the shape of the discharge square tube. Without external force, it can cover and fit the end of the discharge square tube away from the cylinder, thus sealing one end. In this equipment, the cover plate is made of metal or other materials with high density and not easily deformed. The cover plate has a certain weight. The discharge square tube is square in shape. Preferably, the length of the cylinder is between 300mm and 500mm.

[0007] The top of the discharge square tube is fixed with a connecting seat, and the inside of the cover plate is equipped with a rotating shaft, which is hinged to the connecting seat.

[0008] The auger includes a drive shaft, one end of which is connected to a motor via a gearbox. The drive shaft is located in cylinder one and is rotatably connected to cylinder one. Blades are fixed on the outer wall of the drive shaft. The blades are propeller blades and are located inside cylinder one to push the material to cylinder two. Cylinder one has several small holes and the top of cylinder one is fixedly connected to the feed pipe.

[0009] A threshing cylinder is located below the discharge square tube. After the material is discharged from the discharge square tube, it falls into the threshing cylinder for threshing. The cylinder also includes a blower, a feed pipe, and a shell. Cylinder 1 and part of cylinder 2 are located in the shell. The shell is fixed and sealed to the outer wall of cylinder 2. The drive shaft is rotatably connected to the shell. An air intake is provided on the side wall of the shell. The air inlet of the blower is fixedly connected to the air intake through a pipe. One end of the feed pipe is provided with a feed port, and the other end is fixedly connected to cylinder 1.

[0010] This device is also equipped with four wheels, which are rotated by a power mechanism to enable movement.

[0011] The beneficial effects of the air-closing device for a self-propelled pneumatic feeding corn thresher provided by this utility model are:

[0012] This utility model, by setting up an auger driven by a motor and a second cylinder, can effectively push the material forward and pile the corn in the second cylinder, which can achieve the effect of airtightness, avoid backflow and waste of wind power, and improve the fan effect. At the same time, since this device can close the air, it eliminates the interference of backflow and can improve the absorption effect of this device on light materials.

[0013] By setting up a discharge square tube and a matching irregularly shaped cover plate, the cover plate can effectively prevent backflow during the discharge process compared to a straight plate, thus improving efficiency.

[0014] By using a drive shaft-driven auger, corn can be transported efficiently, preventing it from getting stuck in the auger and affecting material conveying efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0016] Figure 2 This is a side view of a portion of the structure of an embodiment of this utility model;

[0017] Figure 3 This is a rear view of a portion of the structure of an embodiment of this utility model;

[0018] Figure 4 This is a schematic diagram of the air-closure structure of an embodiment of the present utility model;

[0019] Figure 5This is a cross-sectional view of the air-closure structure according to an embodiment of the present utility model;

[0020] Figure 6 This is an embodiment of the present utility model. Figure 5 Enlarged view of part A.

[0021] Among them, 1. Motor; 2. Screwdriver; 21. Drive shaft; 22. Blade; 3. Cylinder 1; 31. Small hole; 4. Cylinder 2; 41. Through groove; 5. Discharge square tube; 51. Connecting seat; 6. Cover plate; 61. Rotating shaft; 7. Threshing cylinder; 8. Fan; 9. Feed pipe; 91. Feed inlet; 10. Shell; 101. Air inlet; 11. Wheel. Detailed Implementation

[0022] To make the technical means, technical features, utility model purpose and technical effects of this utility model easy to understand, the present utility model will be further described below with reference to specific illustrations. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0023] Example 1

[0024] As attached Figure 1 To be continued Figure 6 The following describes a closed-loop device for a self-propelled pneumatic suction corn thresher: A motor 1 is included. The output end of the motor 1 is connected to an auger 2 via a gearbox. A hollow cylinder 3 is located outside the auger 2 and is rotatably connected to a drive shaft 21. A cylinder 4 is fixedly connected to the end of the cylinder 3 furthest from the motor 1. A through groove 41 is formed in the cylinder 4, extending through both ends of the cylinder 4. The through groove 41 is a hollow cylinder or frustum shape, and the diameter of the end furthest from the cylinder 3 is no greater than the diameter of the end closest to the cylinder 3. A discharge square pipe 5 is fixedly connected to the end of the cylinder 4 furthest from the cylinder 3. A cover plate is provided at the end away from the second cylinder 4, and the tops of the two are hinged together. The end of the discharge square tube 5 near the cover plate has a protrusion. The inner wall of the cover plate 6 is adapted to the shape of the end of the discharge square tube 5 away from the second cylinder 4. The cover plate 6 is sleeved on the end of the discharge square tube 5 away from the second cylinder 4. Without external force, it can cover and fit the end of the discharge square tube 5 away from the second cylinder 4, thus sealing one end. In this device, the cover plate 6 is made of metal or other materials with high density and not easily deformed. The cover plate 6 has a certain weight. The discharge square tube 5 is square in shape. Preferably, the length of the second cylinder 4 is between 300mm and 500mm.

[0025] In this device, the discharge square tube 5 is a square tube with a triangular shape on the side near the cover plate 6. The cover plate 6 is adapted to the discharge square tube 5, and its inner wall is also triangular. The tops of the two are hinged, which can effectively seal the air. The special structure of the discharge square tube 5 and the cover plate 6 can greatly improve its stability during the movement of the corn thresher, preventing it from shaking. Furthermore, the discharge square tube 5 is a square tube, not a round tube, while the inside of the cylinder 4 is round, not square, which significantly improves the air-sealing effect.

[0026] The top of the discharge square tube 5 is fixed with a connecting seat 51, and the inside of the cover plate 6 is provided with a rotating shaft 61, which is hinged to the connecting seat 51.

[0027] The auger 2 includes a drive shaft 21. One end of the drive shaft 21 is connected to the motor 1 via a gearbox. Part of the drive shaft 21 is located in the first cylinder 3. The drive shaft 21 is rotatably connected to the first cylinder 3. Blades 22 are fixed on the outer wall of the drive shaft 21. The blades 22 are propeller blades. The blades 22 are set inside the first cylinder 3 and are used to push the material to move towards the second cylinder 4. The first cylinder 3 is provided with several small holes 31. The top of the first cylinder 3 is fixedly connected to the feed pipe.

[0028] In this equipment, the blades 22 driven by the drive shaft 21 can handle a variety of materials, especially corn. Due to the different lengths, thicknesses, and moisture levels of corn, after multiple experiments, a drive shaft-driven auger was finally adopted to transport the material. This method can effectively transport corn and prevent it from getting stuck in the auger, thus affecting the material transport efficiency.

[0029] Below the discharge square tube 5 is a threshing cylinder 7. After the material is discharged from the discharge square tube 5, it falls into the threshing cylinder 7 for threshing. The threshing cylinder 7 is a mature existing technology and can be purchased on the market. Its specific structure will not be described in detail. It also includes a blower 8, a feed pipe 9 and a shell 10. The first cylinder 3 and part of the second cylinder 4 are located in the shell 10. The outer side wall of the shell 10 and the second cylinder 4 are fixed and sealed. The drive shaft 21 is rotatably connected to the shell 10. The side wall of the shell 10 is provided with an air intake 101. The air inlet of the blower 8 is fixedly connected to the air intake 101 through a pipe. One end of the feed pipe 9 is provided with a feed inlet 91, and the other end is fixedly connected to the first cylinder 3.

[0030] Of course, in this device, the blower 8 can also be directly connected to the cylinder 3, and the cylinder 3 can be fed by air suction without opening the small hole 31. When using this method, a filter plate is provided at the connection between the blower 8 and the cylinder 3 to prevent corn from entering the blower 8.

[0031] The device is also equipped with four wheels 11, which are rotated by a power mechanism to move.

[0032] Working method: The blower 8 and motor 1 are turned on. The blower 8 sucks up corn through the suction port 101 and the feed pipe 9. Since the cover plate 6 covers the discharge square pipe 5, the airflow can only enter from the feed port 91. Under the action of the high-pressure airflow, the corn enters the first cylinder 3 from the feed pipe 9. The motor 1 drives the blades 22 to rotate through the transmission shaft 21, pushing the corn towards the second cylinder 4. As the blades 22 work continuously, the corn continuously gathers into the second cylinder 4, saturating the space. As the blades 22 continue to work, the corn continues to advance into the second cylinder 4, eventually exceeding the weight of the cover plate 6, lifting the cover plate 6 and falling into the threshing cylinder 7. At this time, the second cylinder 4 still has a large amount of corn piled up. Even if the cover plate 6 is opened at a certain angle, it can still achieve the effect of airtight discharge.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes and modifications made in accordance with the content of the claims of the present utility model shall fall within the technical scope of the present utility model.

Claims

1. A wind closing device for a self-propelled wind suction material feeding corn thresher, characterized in that: The utility model provides a kind of motor (1), the motor (1) is drivingly connected with auger (2), the outside of the auger (2) is provided with hollow cylinder one (3), the one end of the cylinder one (3) away from motor (1) is fixedly connected with cylinder two (4), the one end of the cylinder two (4) away from cylinder one (3) is fixedly connected with discharge square tube (5), the one end of the discharge square tube (5) away from cylinder two (4) is equipped with cover plate (6), the top of the discharge square tube (5) and cover plate (6) is hinged, the one end of the discharge square tube (5) close to cover plate is equipped with protrusion, the shape of the inner wall of the cover plate (6) and the one end of the discharge square tube (5) away from cylinder two (4) is adapted, the cover plate (6) is sleeved in the one end of the discharge square tube (5) away from cylinder two (4).

2. A wind closing device for a self-propelled wind suction type corn thresher according to claim 1, characterized in that: The cylinder two (4) is provided with a through groove (41) therein, the through groove (41) penetrates both ends of the cylinder two (4), the through groove (41) is a hollow cylinder or a circular truncated cone, and the diameter of the one end away from the cylinder one (3) is not greater than the diameter of the one end close to the cylinder one (3), and the discharge square tube (5) is a square tube.

3. A wind closing device for a self-propelled wind suction feeding maize thresher according to claim 1, characterized in that: The top of the discharge square tube (5) is fixedly provided with a connecting seat (51), and the inside of the cover plate (6) is provided with a rotating shaft (61), and the rotating shaft (61) is hinged to the connecting seat (51).

4. A wind closing device for a self-propelled wind suction type corn thresher according to claim 1, characterized in that: The auger (2) comprises a transmission shaft (21), one end of the transmission shaft (21) is drivingly connected with the motor (1), the transmission shaft (21) is partially located in the cylinder one (3), the transmission shaft (21) is rotatably connected with the cylinder one (3), and a blade (22) is fixedly arranged on the outer side wall of the transmission shaft (21), the blade (22) is a propeller blade, and the blade (22) is arranged in the cylinder one (3).

5. A wind closing device for a self-propelled wind suction type corn thresher according to claim 4, characterized in that: A threshing cylinder (7) is arranged below the discharge square tube (5), and a fan (8) is further arranged and connected with the cylinder one (3).

6. A wind closing device for a self-propelled wind suction feeding maize thresher according to claim 5, characterized in that: Further comprising a shell (10), the cylinder one (3) and part of the cylinder two (4) are located in the shell (10), the shell (10) is fixedly connected with the outer side wall of the cylinder two (4), the transmission shaft (21) is rotatably connected with the shell (10), a suction port (101) is formed in the side wall of the shell (10), the air inlet of the fan (8) is fixedly and communicatively connected with the suction port (101) through a pipeline, and a plurality of small holes (31) are formed in the cylinder one (3).

7. A wind closing device for a self-propelled wind suction feeding maize thresher according to claim 1, characterized in that: The top of the cylinder one (3) is fixedly and communicatively connected with a feeding pipe (9), one end of the feeding pipe (9) is provided with a feeding port (91), and the other end of the feeding pipe (9) is fixedly and communicatively connected with the cylinder one (3).

8. A wind closing device for a self-propelled wind suction feeding maize thresher according to claim 1, characterized in that: Further comprising four wheels (11).

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