Electric air-suction type high-efficiency high-seed-throwing-rate multifunctional seeder

Abstract

The utility model provides an electric air-suction type high-efficiency high-seed-throwing-rate multifunctional seeder which is driven by a tractor, the tractor is matched with a high-power generator, and the output voltage of the high-power generator is determined by the number of seeding monomers; and each seeding unit adopts an independent electric fan and an air suction type seeding device. According to the utility model, the conditions that the existing air suction type seeding machine is of a power output driving fan structure, is influenced by the size of an accelerator of a tractor and clutch switching during gear shifting, often causes the phenomena of seed loss and miss seeding due to unstable wind power or wind power interruption, and does not have a matched air suction type seeding machine with the power of less than 90 horsepower are changed. Compared with a traditional air suction type seeding machine, the air suction type seeding machine can normally work in the field without reseeding, can save 2000-3000 seeds every day, can normally work when the rotating speed of a tractor is 900 revolutions or above, and can save fuel cost by 30% or above every day compared with the traditional air suction type seeding machine.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a high-efficiency, high-seed-input-rate seeder that can sow a variety of crops and achieve precise single or multiple seeding per hole. Background Technology

[0002] Currently, seeders are divided into two types: mechanical seed metering devices and pneumatic seed metering devices. Mechanical seed metering devices are limited to a single crop type, such as corn. When planting other crops, the entire seed metering device or seeding unit (including furrow opener, depth limiting device, seed metering device, seed guide bucket, compaction rollers, etc.) needs to be replaced. Furthermore, the seed loading rate in actual operation can only reach slightly above 90%, but not exceeding 95%. In contrast, pneumatic seed metering devices utilize a negative pressure fan to create negative pressure that adsorbs seeds onto the seed metering disc, achieving a higher seed loading rate. They have lower requirements for seed shape, specific gravity, and size, enabling high-speed, high-rate seed loading and multi-variety crop sowing operations.

[0003] However, existing air-suction seeders rely on an axial flow fan driven by a universal joint driven by the tractor's power take-off shaft, resulting in a complex structure. This structure is affected by the tractor's power; for example, the airflow fluctuates depending on the engine throttle; airflow is interrupted by tractor gear shifting; and the carrying structure (requiring the tractor's hydraulic suspension system to lift the seeder more than 40 cm off the ground when turning at the end of the field) can cause power output to be interrupted if the angle is too large, leading to the fan stopping, interrupting airflow, and causing seeds to fall from the seed tray. Even in towed operations, the engine can only idle during turns, causing the fan to stop or the airflow from the seed tray to decrease, resulting in all seeds falling to the ground. Furthermore, the turning radius cannot be too small, otherwise the universal joint will exceed its transmission angle, damaging transmission components or the fan. After turning, the seeder needs to travel a certain distance again for the seed tray to re-absorb seeds before normal sowing can resume, leading to missed sowing and seed waste. Furthermore, due to the length of the suction duct, each row of the seeder from 2 to 12 needs to be connected to a suction port through a duct, resulting in inconsistent airflow to each seed metering device. The further away the seed metering device is from the blower, the longer the duct and the weaker the airflow. In addition, 80% of tractors in the 30-90 horsepower range do not have dual-clutch transmissions and cannot use air-suction seeders.

[0004] In view of the above, this utility model is hereby proposed. Utility Model Content

[0005] The technical problem this invention aims to solve is to overcome the shortcomings of existing technologies and provide an electric pneumatic suction type high-efficiency, high-seed-feeding-rate, multi-functional seeder. This solves the problems of existing seeders, such as cumbersome transmission components, complex structure, high cost, easy damage, difficult operation, seed waste, unstable and continuous wind power, inconsistent wind power of different seed metering devices, and limited compatibility with certain tractor models. Furthermore, it saves fuel consumption; existing pneumatic suction seeders require an engine speed of at least 1500 rpm to operate, while this invention does not limit engine speed, thus saving seed consumption. Because the wind power of this invention is continuously stable, the seed tray will not fail to hold seeds even when the power is on after stopping, eliminating the need to turn around, set the engine speed, and drive a distance to replenish seeds in the seed tray each time. Therefore, this invention is simple to operate, easy to install, and improves work efficiency.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is: an electric pneumatic suction type high-efficiency and high-seed-feeding-rate multi-functional seeder, driven by a tractor, the tractor is equipped with a high-power generator, the output voltage of the high-power generator is determined by the number of seeding units; each seeding unit adopts an independent electric fan and a pneumatic suction seed metering device.

[0007] Preferably, there are 2 to 6 seeding units, and the output voltage of the high-power generator is 12 to 16V.

[0008] Preferably, there are 6 seeding units, and the output voltage of the high-power generator is 14-15V.

[0009] Preferably, the number of seeding units is 7 to 12, and the output voltage of the high-power generator is 24 to 32V.

[0010] Preferably, there are 12 seeding units, and the output voltage of the high-power generator is 28-29V.

[0011] Preferably, it also includes a high-current switch and a voltage monitoring and alarm device, wherein the high-current switch and voltage monitoring and alarm device are directly connected to the high-power generator by the high-current safety transmission main harness.

[0012] Preferably, it also includes an output power distribution harness, the input end of which is connected to the high-current switch and the voltage monitoring and alarm device, and the output end of which is connected to the seeding unit.

[0013] Preferably, each seeding unit is equipped with a fan speed control driver wiring harness. The input end of the fan speed control driver wiring harness is connected to the output end of the output power supply branch wiring harness, and an overcurrent protection fuse is provided on the positive line. The output end of the fan speed control driver wiring harness is connected to the fan speed control driver, and the fan speed control driver is connected to the electric fan.

[0014] Preferably, each seeding unit is also equipped with a negative pressure gauge.

[0015] After adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: the original mechanical transmission structure fan is innovated into an electric power driven fan system, which enables the seeder to achieve working stability and operation convenience, while also having the advantages of economy and durability. This utility model has a simple structure, is easy to install, is lightweight, and is easy to repair and maintain. Attached Figure Description

[0016] Figure 1 A schematic diagram of the wiring harness assembly for a seeder that can be equipped with 6 seed units;

[0017] Figure 2 A schematic diagram of the wiring harness assembly for components such as the electric fan and fan speed control driver in a single seeding unit;

[0018] Figure 3 This diagram shows the connection of components such as the electric fan, fan speed control drive, and air suction seed metering device in a single seeding unit.

[0019] In the diagram: 1-High-power generator, 2-High-current safety transmission main harness, 3-High-current switch and voltage monitoring alarm device, 4-Output power supply branch harness, 5-Fan speed control driver harness, 6-Electric fan, 7-Negative pressure gauge, 8-Air suction seed meter, 9-Fan speed control driver. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to help to understand the content of the present invention.

[0021] like Figure 1 As shown, high-power generator 1 is a 14V generator, which can drive 2 to 6 seeding units. If it is necessary to drive 7 to 12 or more seeding units, a generator of 28V or higher should be selected to replace the original low-power generator of the tractor, so as to ensure that the power consumption of the seeder and the tractor can be matched. Using a high-power generator can solve the problem that the original generator of the existing tractor cannot meet the power consumption of other components besides the tractor. Other external power output drive generators will also stop generating electricity when the tractor clutch disengages.

[0022] The high-current safety transmission main harness 2 is used to directly connect the high-power generator 1 and the high-current switch and voltage monitoring alarm device 3, and is installed and fixed together on the tractor cab without affecting the tractor's operation of attaching other agricultural implements. At the same time, overcurrent fuses are matched according to the number of rows of the seeder, and heat-insulating protection tubes are installed on the positive and negative terminals respectively.

[0023] The high-current switch and voltage monitoring alarm device 3 is the main switch for the power supply of the seeder, used to turn the power to the seeder on and off. In this embodiment, the detection voltage is set between 12 and 16V. This range can be adjusted according to the actual voltage of the high-power generator 1. The voltmeter displays the voltage value in real time. When the line voltage is lower than 12V or higher than 16V, the alarm device activates an audible and visual alarm to warn of abnormal voltage. This device is designed to prevent the generator from malfunctioning, generating little or no power, depleting the battery, or causing damage to other electrical components due to abnormally high generator voltage.

[0024] like Figures 1 to 3 As shown, the input end of the output power distribution harness 4 is a high-current main line plug, facilitating quick connection and disconnection with the front-end high-current switch and voltage monitoring alarm device 3, allowing the tractor to easily switch and attach other agricultural implements. The output end has a relative number of branch plugs according to the number of rows of the seeder, used to connect the power plugs of each row of seeding units. Through an innovative integrated shunt circuit system, this utility model has real-time voltage monitoring and alarm devices for overvoltage or undervoltage / current, an overcurrent safety fuse, and a dual protection device for the main circuit start and stop, realizing power transmission and utilizing electricity to generate stable wind power for two- to multi-row seeders. This utility model has an independent wind pressure and wind power system for each row, allowing individual control of the wind power for each row, or arbitrary shutdown of the wind power for each row, and can be matched with all tractor models of 30 horsepower and above. Each seeding unit adopts an independent wind pressure and wind power system, which is stable in operation, uniform in wind speed, reliable in performance, stepless speed regulation, wide speed regulation range, strong overload safety, long service life, small size, light weight, and adjustable suction power, suitable for sowing various crops. The seeding rate is as high as 99.7% or more, which is more than 5% more accurate than finger-clamp seeding.

[0025] The input end of the fan speed control driver harness 5 is a quick-connect plug for connecting the branch line. An overcurrent protection fuse is installed on the positive line and it is connected to the fan speed control driver 9. The output end of the fan speed control driver 9 is a red, yellow and black three-color plug for connecting the electric fan 6.

[0026] The input power cord of the electric fan 6 is red, yellow and black wires. The three-color wire plugs of the fan speed control driver 9 are connected according to the color. The air intake is connected to the air duct of the negative pressure chamber of the air suction seed metering device 8 and is equipped with a negative pressure gauge 7. The electric fan 6 generates negative pressure when it runs at high speed, which causes the air suction seed metering device 8 to adsorb seeds.

[0027] The negative pressure gauge 7 is used to display the real-time pressure of the electric fan 6. When sowing different crops, the fan speed control driver 9 is used to adjust the air pressure according to the specific gravity of the crop seeds and the required pressure, so that the negative pressure reaches the required pressure.

[0028] This invention changes the existing air-suction seeders, which all use a power-driven fan structure. This structure is affected by the tractor's throttle and clutch switching during gear shifts, often resulting in unstable or interrupted airflow, leading to seed loss and missed planting. Furthermore, there are no compatible air-suction seeder models below 90 horsepower. This new invention allows for normal operation in the field without reseeding, saving 2000-3000 seeds per day compared to traditional air-suction seeders. It can operate normally with a tractor speed above 900 RPM, saving over 30% in fuel costs per day compared to traditional air-suction seeders.

[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A high-efficiency, high-seed-input-rate, multi-functional electric pneumatic seeder, driven by a tractor, characterized in that, This electric pneumatic suction type high-efficiency high-seed-rate multi-functional seeder includes a high-current safe power transmission main harness, a high-current switch and voltage monitoring alarm device (3), an output power distribution harness, and 2 to 6 seeding units or 7 to 12 or more seeding units. The tractor is equipped with a high-power generator (1), and the output voltage of the high-power generator (1) is determined by the number of seeding units. Each seeding unit adopts an independent electric fan (6) and a pneumatic suction seed metering device (8). The high-current switch and voltage monitoring alarm device (3) is directly connected to the high-power generator (1) by the high-current safe power transmission main harness (2). The input end of the output power distribution harness (4) is connected to the high-current switch and voltage monitoring alarm device (3), and the output end of the output power distribution harness (4) is connected to the seeding unit.

2. The electric pneumatic suction type high-efficiency and high-seed-feeding-rate multi-functional seeder according to claim 1, characterized in that, The number of seeding units is 2 to 6, and the output voltage of the high-power generator (1) is 12 to 16V.

3. The electric pneumatic suction type high-efficiency and high-seed-input multi-functional seeder according to claim 2, characterized in that, The number of seeding units is 6, and the output voltage of the high-power generator (1) is 14-15V.

4. The electric pneumatic suction type high-efficiency and high-seed-feeding-rate multi-functional seeder according to claim 1, characterized in that, The number of seeding units is 7 to 12, and the output voltage of the high-power generator (1) is 24 to 32V.

5. The electric pneumatic suction type high-efficiency and high-seed-input multi-functional seeder according to claim 4, characterized in that, The number of seeding units is 12, and the output voltage of the high-power generator (1) is 28-29V.

6. The electric pneumatic suction type high-efficiency and high-seed-feeding-rate multi-functional seeder according to claim 1, characterized in that, Each seeding unit is equipped with a fan speed control driver harness (5). The input end of the fan speed control driver harness (5) is connected to the output end of the output power supply harness (4), and an overcurrent protection fuse is provided on the positive line. The output end of the fan speed control driver harness (5) is connected to the fan speed control driver (9), and the fan speed control driver (9) is connected to the electric fan (6).

7. The electric pneumatic suction type high-efficiency and high-seed-input multi-functional seeder according to claim 6, characterized in that, Each seeding unit is also equipped with a negative pressure gauge (7).

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