CN200990801Y - Single-rice threshing counter - Google Patents

Abstract

A rice single plant threshing counting instrument, which includes a bow-shaped rice threshing device, a fan, a counting device and a frame, is characterized in that a horizontal disc seeding mechanism is assembled below the rice threshing device, and the disc seeding mechanism A fixed disc with a fixed seeding hole is set, and a rotating disc with a mobile seeding hole is connected to the top of the fixed disc, and an infrared photoresistor and an infrared light-emitting diode are installed under the fixed seeding hole of the fixed disc. The LED is electrically connected to the electronic counter. The utility model has the advantages that: single rice plant threshing and simultaneous counting are realized, and the utility model is an economical and practical agricultural machine with small volume, light weight, low energy consumption, convenient use, high working efficiency.

Description

Rice single plant threshing counter

Technical field:

The utility model belongs to an agricultural machine, which is suitable for threshing a single plant and recording the number of grains per ear in the process of indoor rice seed testing by agricultural scientific research personnel.

Background technique:

The number of grains per panicle is an important indicator of rice planting test. Usually, the indoor test planting is performed by manual threshing of rice and detection of the number of grains per panicle. There are many problems in doing this work manually. For example, due to the burrs of the rice grains themselves and the resistance when they are taken off during threshing, the hand is often scratched; Fatigue affects the accuracy rate and the work efficiency is also very low. The utility model can complete the threshing of a single rice plant at one time and simultaneously detect the number of grains per ear of the rice, and has high accuracy and working efficiency.

Utility model content:

The purpose of the utility model is to provide scientific researchers engaged in rice research with an accurate and efficient device capable of threshing a single rice plant at one time and simultaneously detecting the number of grains per ear of rice.

The purpose of this utility model is achieved in the following way: it includes a bow-tooth rice threshing device, a fan, a counting device and a frame, and is characterized in that a horizontal disc seeding mechanism is assembled below the rice threshing device, and the disc seeding mechanism A fixed plate with a fixed seeding hole is set, and a rotating plate with a mobile seeding hole is connected to the top of the fixed plate, and an infrared photoresistor and an infrared light-emitting diode are installed under the fixed seeding hole of the fixed plate. The type light-emitting diode is electrically connected to the electronic counter.

The utility model has the advantages that: functionally, the threshing of a single rice plant and the detection of the number of grains per ear can be carried out simultaneously, and it has the characteristics of small size, simple structure, light weight, low energy consumption, convenient use and high work efficiency.

Description of drawings:

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a view from the direction A of Fig. 1 (a schematic diagram of the structure of the horizontal disk type seed metering mechanism).

Fig. 3 is a sectional view along line B-B of Fig. 2 (a schematic structural view of the fixed plate).

Detailed ways:

See Figure 1-3, the specific structure is as follows: use the common bow tooth rice threshing device to realize the threshing of rice and ensure clean threshing. Type rice threshing drum 4, sieve plate 5 is assembled at the bottom; impurity removal fan 20 is installed below the threshing device to blow off impurities such as chaff, ensuring that the material during counting is only rice grains, and the accuracy of counting is ensured from the aspect of material cleaning . Assemble the impurity acceptor 7 on the opposite side. Assemble a horizontal disc-type seeding device below the threshing device. The disc-type seeding mechanism is provided with a fixed disc 17 with a fixed seeding hole 23. The fixed disc 17 is assembled on the frame, and the top of the fixed disc 17 is rotated by a rotating shaft. The rotating disc 8 that is connected with the moving seeding hole 22 has a splitter cone 6 above the rotating disc 8, and a seed cleaning brush 18 is installed above the disc surface of the rotating disc 8. The disk shaft 24 of the rotating disk 8 is connected to the output shaft of the motor 14 through the transmission belt 16 . The seed drop tube 12 is set below the fixed seeding hole 23, and an infrared light-emitting diode 13 and an infrared photoresistor 9 are correspondingly installed on the same section of the tube wall on both sides of the seed drop tube 12, and the infrared photoresistor 9 and the infrared light-emitting diode 13 is electrically connected to the electronic counter 10. The rice grain receiver 11 is set below the fixed seeding hole 23 .

The overall characteristics of this system are: the use of the bow-tooth rice threshing device to realize the threshing of rice, to ensure that the threshing is clean; Accuracy: A horizontal disc-type seeding device is adopted, and the rice seeds are discharged through the relative movement of the rotating disc 17 with a moving seeding hole and the fixed disc 17 with a fixed seeding hole, and the cleaning brush will move the seeding The excess seeds near the hole are removed to ensure single-seed seeding. The seed counter is composed of common infrared light-emitting diodes, infrared photoresistors and counting circuits. This is a non-contact counting device with the advantages of accurate counting and high operating frequency. During the falling process, the seeds discharged from the seeding hole of the horizontal disc type metering device cut off the optical path to form an electrical pulse, and the counting circuit records the pulse signal of a seed, and realizes counting one by one.

work process:

As shown in FIG. 1 , turn on the power, hold a rice stalk 2 , and place the part containing the grains in the feeding port 1 . Clamp the rice stalk 2 with a leaf spring clamp 21 . Start the micromotor 20 and the micromotor 14, connect the power supply of the electronic counter 10 and adjust the count display to make it "zero". When the micro-motor 20 rotates, the power is transmitted to the bow tooth type threshing cylinder 4 through the belt. During the rotation of the bow tooth type threshing cylinder 4, the rice grains are taken off from the ear head under the action of the bow tooth pulling force. Materials such as the grain and chaff that are taken off leak from the sieve hole of sieve plate 5. Grain falls in the cavity at the top of the horizontal disc type seeding mechanism through the air outlet of blower fan 19 under the effect of gravity; The top of impurity acceptor 7 has aperture, discharges the air that fan blows over. As shown in Fig. 1, Fig. 2 and Fig. 3, there is a splitter cone 6 in the middle part above the rotating disc 8, and the grains approach around the rotating disc 8 with the seeding hole under the effect of the splitting cone 6. Driven by the micromotor 14 and the belt 16, the rotating disk 8 drives the shaft 24 to rotate, and the shaft passes through the central hole on the fixed disk 17 to drive the rotating disk 8 fixed thereto to rotate. During the rotation of the rotating disc 8, the rice grains are filled into the moving seeding holes 22 thereon under the action of gravity. Seed clearing hairbrush 18 brushes out unnecessary grain, guarantees that there is only one grain in each hole. When the moving seeding hole 22 on the rotating disk 8 forwards to the fixed seeding hole 23 on the fixed disk 17 and is relative, the grain in the moving seeding hole 22 falls and enters the seed drop pipe 12 . When the grain passes through the section of the infrared light emitting diode 13, the light path from the infrared light emitting diode 13 to the infrared photoresistor 9 is blocked, an electric pulse is generated in the circuit of the electronic counter 10, and the electronic counter 10 records the electric pulse of a grain signal, and these pulse signals are accumulated one by one to achieve counting. After the threshing and counting of a rice plant is completed, observe whether there are rice grains left in the machine through the plexiglass casing, and if there are, open the impurity removal valve to clean them; if not, continue to take off the next rice plant.

Claims (1)

1. A rice single-plant threshing counter, which includes a bow-shaped rice threshing device, a fan, a counting device and a frame, and is characterized in that a horizontal disc seeding mechanism is assembled below the rice threshing device, and the disc row The seeding mechanism is provided with a fixed plate with a fixed seeding hole, and a rotating plate with a moving seeding hole is connected to the top of the fixed plate, and an infrared photoresistor and an infrared light-emitting diode are installed under the fixed seeding hole of the fixed plate, and the infrared photoresistor The electronic counter is electrically connected with the infrared light-emitting diode.

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