A seeder test stand

Abstract

The utility model relates to the field of seeding machine testing device, concretely relates to a seeding machine test bench, including distribution mechanism and monitoring device, monitoring device includes sensor and camera for detecting seed sowing and arrangement situation, distribution mechanism includes distribution box, controller and distribution subassembly, is used for controlling drive assembly to provide power for whole test, still include seed metering device, test bench skeleton, conveying mechanism and drive mechanism, test bench skeleton includes lower limb, upper beam and main body skeleton, monitoring device and distribution mechanism all install on main body skeleton, be provided with mounting support on upper beam, be provided with seed tank on mounting support, seed metering device is fixed in single body one end and seed tank link, the other end and guide seed pipe link, drive mechanism installs on upper beam and drives seed metering device, conveying mechanism installs on lower limb, solved the present stage seed metering device, seed tank frame, guide seed pipe etc. Key component's test limitation and timeliness problem, the usual test mode is through field test, but field test has very big limitation and timeliness problem.

Description

Technical Field

[0001] This utility model relates to the field of seeder testing equipment, specifically to a seeder testing platform. Background Technology

[0002] Performance testing of seeders is an important part of agricultural machinery testing. Currently, seeder manufacturers can only test the seed metering device. However, the seeding unit is not only the seed metering device, but also includes the seed box frame, seed guide tube, and individual units. Whether the design of these components is reasonable and whether the precision is matched can only be known through testing. The usual testing method is field testing, but field testing has great limitations and timeliness.

[0003] In summary, a seeder test bench is proposed to solve the aforementioned problems. Utility Model Content

[0004] The purpose of this utility model is to provide a test bench for testing the coordination between the seed metering device, seed guide tube, seed box, and seed box support, the accuracy of the seed guide tube, and whether the seed placement point is reasonable. This test bench provides a direct view of the results, is not affected by climate or season, and can be used for testing throughout the year.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A seeder test bench includes a power distribution mechanism and a monitoring device. The monitoring device includes sensors and a camera for detecting seed arrangement. The power distribution mechanism includes a power distribution box, a controller, and power distribution components for providing power. It also includes a seed metering device, a test bench frame, a conveying mechanism, and a drive mechanism. The test bench frame includes a lower beam, an upper beam, and a main frame. The monitoring device and the power distribution mechanism are both mounted on the main frame. A mounting bracket is provided on the upper beam, and a seed box is provided on the mounting bracket. One end of the seed metering device is connected to the seed box, and the other end is connected to a seed guide tube via a single unit. The drive mechanism is mounted on the upper beam and drives the seed metering device. The conveying mechanism is mounted on the lower beam.

[0007] Further defining the conveying mechanism, the conveying platform includes a conveying table and a conveying motor. The conveying table includes a conveying frame and a conveyor belt. A conveying roller is installed on the conveying frame, and the conveyor belt is installed on the conveying roller. The conveying frame is adjustablely installed on the lower beam. The conveying motor is installed below the conveying frame and drives the conveyor belt. A seed collection box is provided on the side of the conveying frame away from the main frame.

[0008] Further specifying, the seed metering device is a finger-clamp seed metering device, the driving mechanism is a drive motor, the output shaft of the drive motor is provided with a drive gear, the mounting bracket is also provided with a first drive shaft, a second drive shaft and a third drive shaft, the first drive shaft is provided with a driven wheel and a first transmission wheel, a chain is installed between the driven wheel and the drive gear, the second drive shaft is provided with a second transmission wheel and a third transmission wheel, a chain is provided between the second transmission wheel and the first transmission wheel, a tension wheel is provided on the chain between the second transmission wheel and the first transmission wheel, the third drive shaft is provided with a fourth drive wheel and drives the finger-clamp seed metering device, a chain is provided between the third drive wheel and the fourth drive wheel.

[0009] Further specifying, the seed metering device is a pneumatic suction seed metering device, the driving mechanism is a drive motor, and a drive gear is provided on the output shaft of the drive motor. The mounting bracket also includes a first drive shaft, a second drive shaft, and a third drive shaft. The first drive shaft has a driven wheel and a first transmission wheel, and a chain is installed between the driven wheel and the drive gear. The second drive shaft has a second transmission wheel and a third transmission wheel, and a chain is installed between the second transmission wheel and the first transmission wheel. A tensioning wheel is installed on the chain between the driving wheels. A fourth drive wheel is installed on the third drive shaft and drives the air suction seed metering device. A chain is installed between the third and fourth drive wheels. The device also includes an air supply device, which includes a high-pressure blower and an air duct. The high-pressure blower is installed at the lower end of the main frame. The air outlet of the high-pressure blower is connected to the positive pressure chamber of the air suction seed metering device for blowing off the seeds. The high-pressure blower is also equipped with an air volume adjustment device and an air pressure gauge for monitoring and adjusting the air pressure and air volume.

[0010] Further specifying, the seed metering device is an electrically driven seed metering device, the driving mechanism is a drive motor, the drive motor drives the electrically driven seed metering device, the motor shaft of the drive motor is equipped with a code disk, the code disk is signal-connected to the electrically driven seed metering device, and is used to drive the seed metering device to achieve precise sowing, the conveyor frame is equipped with a radar device, the radar device is signal-connected to the code disk and the electrically driven seed metering device, and the driving method can be either code disk driving or radar device driving.

[0011] Further specifying, the radar device includes a single rear support assembly, a support shaft, and a radar sensor. The single rear support assembly has two brackets, respectively installed on the front and rear sides of the conveyor frame. The support shaft is mounted on the single rear support assembly and is L-shaped. The support shaft is provided with a mounting bracket, which has an oblong hole. The radar sensor is mounted with a rotating bracket, which has a fixing hole and a mounting hole. Both the fixing hole and the mounting hole are through holes, and the size of the mounting hole matches the size of the oblong hole. The radar sensor is rotatably mounted on the support shaft through the fixing hole and mounting hole on the rotating bracket and the oblong hole on the mounting bracket.

[0012] The advantages of this utility model over the current technology are as follows:

[0013] 1. The seed metering device is a finger clamp type, air suction type or electric drive type, and is equipped with a conveying mechanism, air supply device, radar device or code disk to test the seed dropping speed and seed dropping interval of different types of seed metering devices, thereby detecting and monitoring the seed dropping rate, empty hole rate and plant spacing changes.

[0014] 2. The radar sensor can rotate on the support shaft, making it easy to adjust the detection angle. The radar sensor transmits the detected signal to the electric seed metering device. The encoder also rotates and transmits the signal to the electric seed metering device through the probe, ensuring accurate seed placement. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the testing platform for the electric-driven seed metering device of this utility model.

[0016] Figure 2 This is a three-dimensional schematic diagram showing that the seed metering device of this utility model is either a finger clamp type or an air suction type;

[0017] Figure 3 A schematic diagram of the mechanical structure of the seed metering device driven by the drive mechanism;

[0018] Figure 4 This is a three-dimensional schematic diagram of the test bench frame of this utility model;

[0019] Figure 5 This is a schematic diagram of the installation of the radar sensor and support shaft of this utility model;

[0020] Figure 6 This is a schematic diagram of the radar sensor of this utility model.

[0021] The symbols in the diagram correspond to: 1-Power distribution mechanism, 2-Monitoring device, 3-Seed metering device, 4-Experimental platform frame, 41-Lower beam, 42-Upper beam, 43-Main frame, 5-Drive motor, 6-Mounting bracket, 7-Seed box, 8-Seed guide tube, 9-Transfer platform, 10-Transfer motor, 11-Seed collection box, 12-Drive gear, 13-First transmission shaft, 14-Second transmission shaft, 15-Driven wheel, 16-First transmission wheel, 17-Second transmission wheel, 18-Third transmission wheel, 19-Tensioning wheel, 20-Third transmission shaft, 21-Fourth transmission wheel, 22-High-pressure fan, 23-Code disc, 24-Radar device, 25-Unit rear support assembly, 26-Support shaft, 27-Radar sensor, 28-Radar mounting bracket, 29-Rotating bracket, 291-Fixing hole, 292-Mounting hole, 30-Unit. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] like Figures 1-6 As shown, a seeder test bench includes a power distribution mechanism 1 and a monitoring device 2. The monitoring device 2 includes sensors and a camera for detecting the seed arrangement. The power distribution mechanism 1 includes a power distribution box, a controller, and power distribution components for providing power. Both the power distribution mechanism 1 and the monitoring device 2 are existing technologies and will not be described in detail here. It also includes a seed metering device 3, a test bench frame 4, a conveying mechanism, and a drive mechanism. The test bench frame 4 includes a lower beam 41, an upper beam 42, and a main frame 43. The power distribution mechanism 1 and the monitoring device 2 are both mounted on the main frame 43. The drive mechanism is a drive motor 5, which is mounted on the upper beam 41. 2. The seed metering device 3 is driven by the upper beam 42. A mounting bracket 6 is also provided on the upper beam 42. A seed box 7 is provided on the mounting bracket 6. One end of the seed metering device 3 is connected to the seed box 7, and the other end is connected to the seed guide tube 8 through a single unit 30. The position can be adjusted according to the required position. The conveying mechanism includes a conveyor table 9 and a conveyor motor 10. The conveyor table 9 includes a conveyor frame and a conveyor belt. A conveyor roller is installed on the conveyor frame, and the conveyor belt is installed on the conveyor roller. The conveyor frame is adjustablely installed on the lower beam 41 and can be adjusted as needed. The conveyor motor 10 is installed below the conveyor frame and drives the conveyor belt. A seed collection box 11 is provided on the side of the conveyor frame away from the main frame 43. Example 1

[0024] The seed metering device 3 is a finger-clamp type seed metering device. A drive gear 12 is installed on the output shaft of the drive motor 5. A first drive shaft 13 and a second drive shaft 14 are also installed on the mounting bracket 6. A driven wheel 15 and a first drive wheel 16 are installed on the first drive shaft 13. A chain is installed between the driven wheel 15 and the drive gear 12. A second drive wheel 17 and a third drive wheel 18 are installed on the second drive shaft 14. A chain is installed between the second drive wheel 17 and the first drive wheel 16. A tension wheel 19 is installed above the chain between the second drive wheel 17 and the first drive wheel 16. A fourth drive wheel 21 is installed on the third drive shaft 20 and drives the finger-clamp type seed metering device. A chain is installed between the third drive wheel 18 and the fourth drive wheel 21. The drive motor 5 drives the finger-clamp type seed metering device to work. Seeds fall onto the conveyor belt through the seed guide tube 8. The seeding rate, empty hole rate, and plant spacing changes are detected and monitored by a detection device. Example 2

[0025] The seed metering device 3 is a pneumatic suction seed metering device. A drive gear 12 is mounted on the output shaft of the drive motor 5. A first drive shaft 13 and a second drive shaft 14 are also mounted on the mounting bracket 6. A driven wheel 15 and a first drive wheel 16 are mounted on the first drive shaft 13, with a chain connecting the driven wheel 15 and the drive gear 12. A second drive wheel 17 and a third drive wheel 18 are mounted on the second drive shaft 14, with a chain connecting the second drive wheel 17 and the first drive wheel 16. A tension wheel 19 is mounted above the chain between the second drive wheel 17 and the first drive wheel 16. A fourth drive wheel 21 is mounted on the third drive shaft 20 and drives the pneumatic suction seed metering device. The third drive wheel 18 and the fourth drive wheel... A chain is installed between the driving wheels 21, and the drive motor 5 drives the air suction seed metering device to work. The seeds fall onto the conveyor belt through the seed guide tube 8. It also includes an air supply device, which includes a high-pressure blower 22 and an air duct (not shown in the figure). The high-pressure blower 22 is installed at the lower end of the main frame 43. The air outlet of the high-pressure blower 22 is connected to the positive pressure chamber of the air suction seed metering device to assist in blowing the seeds off. The high-pressure blower 22 is also equipped with an air volume adjustment device and an air pressure gauge (not shown in the figure) to detect and adjust the air pressure and air volume. The high-pressure blower 22 assists in blowing the seeds onto the conveyor belt through the seed guide tube 8. The detection device is used to detect and monitor the seed sowing rate, empty hole rate and plant spacing changes.

[0026] The seed metering device in Example 2 is an air suction seed metering device. Compared with Example 1, it is also equipped with an air supply device to cooperate with the air suction seed metering device. The mechanical transmission structure between the drive motor 5 and the seed box 7 is the same. Example 3

[0027] Seeder 3 is an electrically driven seed meterer. A drive motor drives the seed meterer. A code disk 23 is mounted on the motor shaft of the drive motor 5. The code disk 23 is connected to the electrically driven seed meterer for signal transmission, enabling the seed meterer 3 to perform seed metering operations and achieve precise sowing. A radar device 24 is mounted on the conveyor frame. The radar device 24 includes a single rear support assembly 25, a support shaft 26, and a radar sensor 27. The single rear support assembly 25 has two brackets, respectively installed on the front and rear sides of the conveyor frame. The support shaft 26 is mounted on the single rear support assembly 25 and is L-shaped. The support shaft 26 has mounting brackets... The bracket 28 has a slotted hole. The radar sensor 27 is mounted on a rotating bracket 29, which has a fixing hole 291 and a mounting hole 292. Both the fixing hole 291 and the mounting hole 292 are through holes. The size of the mounting hole 292 matches the size of the slotted hole. The radar sensor 27 is rotatably mounted on the support shaft 26 through the fixing hole 291 and the mounting hole 292 on the rotating bracket 29 and the slotted hole on the mounting bracket 28. The radar sensor 27 is connected to the electric seed metering device. The encoder 23 can also drive the electric seed metering device to ensure accurate seed placement.

[0028] The difference between Example 3 and Examples 1 and 2 is that the seed metering device is an electrically driven seed metering device. The way the drive motor 5 drives the seed metering device 3 has been changed from mechanical transmission to electric transmission. The drive motor driving the electric seed metering device is an existing driving method, which will not be described in detail here. The radar sensor 27 can rotate on the support shaft 26 to facilitate adjustment of the detection angle. The radar sensor 27 transmits the detected signal to the electrically driven seed metering device. The encoder 23 can also drive the seed metering device. There is no need to use an air supply device here.

[0029] This invention can test various types of seed metering devices for measurement and simulation of field trials. By observing the seed falling speed and distribution spacing, it can detect and monitor seed sowing rate, empty hole rate, and plant spacing changes.

[0030] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] The above provides a detailed description of a seeding test platform provided by this utility model. The description of the specific embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the present utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A seeder test bench, comprising a power distribution mechanism (1) and a monitoring device (2), wherein the monitoring device (2) includes sensors and a camera for detecting the number and arrangement of seeds, and the power distribution mechanism (1) includes a power distribution box, a controller, and power distribution components for providing power, characterized in that: It also includes a seed metering device (3), a test bench frame (4), a conveying mechanism and a driving mechanism. The test bench frame (4) includes a lower beam (41), an upper beam (42) and a main frame (43). The monitoring device (2) and the power distribution mechanism (1) are both installed on the main frame (43). The upper beam (42) is provided with a mounting bracket (6), and the mounting bracket (6) is provided with a seed box (7). One end of the seed metering device (3) is connected to the seed box (7), and the other end is connected to the seed guide tube (8) through a single unit (30). The driving mechanism is installed on the upper beam (42) and drives the seed metering device (3). The conveying mechanism is installed on the lower beam (41).

2. The seeder test bench according to claim 1, characterized in that: The conveying mechanism includes a conveying platform (9) and a conveying motor (10). The conveying platform (9) includes a conveying frame and a conveying belt. A conveying roller is installed on the conveying frame, and the conveying belt is installed on the conveying roller. The conveying frame is adjustablely installed on the lower beam (41). The conveying motor (10) is installed below the conveying frame and drives the conveying belt. A seed collection box (11) is provided on the side of the conveying frame away from the main frame (43).

3. The seeder test bench according to claim 2, characterized in that: The seed metering device (3) is a finger clamp seed metering device, the driving mechanism is a drive motor, and a drive gear (12) is provided on the output shaft of the drive motor (5). The mounting bracket (6) is also provided with a first drive shaft (13), a second drive shaft (14) and a third drive shaft (20). The first drive shaft (13) is provided with a driven wheel (15) and a first drive wheel (16). A chain is installed between the driven wheel (15) and the drive gear (12). The second drive shaft (14) is provided with a second drive wheel (17) and a third drive wheel (18). A chain is provided between the second drive wheel (17) and the first drive wheel (16). A tension wheel (19) is provided on the chain between the second drive wheel (17) and the first drive wheel (16). The third drive shaft (20) is provided with a fourth drive wheel (21) and drives the finger clamp seed metering device. A chain is provided between the third drive wheel (18) and the fourth drive wheel (21).

4. A seeder test bench according to claim 2, characterized in that: The seed metering device is a pneumatic suction seed metering device, and the driving mechanism is a drive motor. A drive gear (12) is provided on the output shaft of the drive motor (5). A first drive shaft (13), a second drive shaft (14), and a third drive shaft (20) are also provided on the mounting bracket (6). A driven wheel (15) and a first drive wheel (16) are provided on the first drive shaft (13). A chain is installed between the driven wheel (15) and the drive gear (12). A second drive wheel (17) and a third drive wheel (18) are provided on the second drive shaft (14). A chain is provided between the second drive wheel (17) and the first drive wheel (16). A tension wheel (19) is provided on the chain between (17) and the first drive wheel (16). A fourth drive wheel (21) is provided on the third drive shaft (20) and drives the air suction seed metering device. A chain is provided between the third drive wheel (18) and the fourth drive wheel (21). An air supply device is also provided. The air supply device includes a high-pressure blower (22) and an air duct. The high-pressure blower (22) is installed at the lower end of the main frame (43). The air outlet of the high-pressure blower (22) is connected to the positive pressure chamber of the air suction seed metering device for blowing off seeds. An air volume adjustment device and an air pressure gauge are also provided on the high-pressure blower (22) for monitoring and adjusting the air pressure and air volume.

5. A seeder test bench according to claim 2, characterized in that: The seed metering device is an electric-driven seed metering device, and the driving mechanism is a drive motor. The drive motor drives the electric-driven seed metering device. A code disk (23) is provided on the motor shaft of the drive motor. The code disk (23) rotates and is signal-connected to the electric-driven seed metering device to drive the seed metering device and achieve precise sowing. A radar device (24) is provided on the conveyor frame. The radar device (24) is signal-connected to the code disk (23) and the electric-driven seed metering device.

6. A seeder test bench according to claim 5, characterized in that: The radar device (24) includes a single rear support assembly (25), a support shaft (26), and a radar sensor (27). The single rear support assembly (25) has two brackets, which are respectively installed on the front and rear sides of the conveyor frame. The support shaft (26) is installed on the single rear support assembly (25). The support shaft (26) is L-shaped and has a radar mounting bracket (28). The radar mounting bracket (28) has a waist-shaped hole. The radar sensor (27) A rotating bracket (29) is installed on the 27), and the rotating bracket (29) is provided with a fixing hole (291) and a mounting hole (292). The fixing hole (291) and the mounting hole (292) are both through holes. The size of the mounting hole (292) matches the size of the waist-shaped hole. The radar sensor (27) is rotatably mounted on the support shaft (26) through the fixing hole (291) and the mounting hole (292) on the rotating bracket (29) and the waist-shaped hole on the radar mounting bracket (28).

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