CN204217397U - Cycle type seeding unit - Google Patents

Abstract

The utility model relates to the technical field of sowing equipment, and discloses a rotary seed metering device, comprising: a seed metering wheel, a track shell and a seed feeding hopper, the track shell has a ring-shaped track cavity, and the track cavity has an inner ring opening; The wheel includes a spoke wheel and a plurality of seed distribution plates, and the plurality of seed distribution plates are arranged at intervals in the orbit cavity of the track shell, and two adjacent seed distribution plates form a seed distribution cavity with the inner ring plate and the track shell; the circumference of the spoke wheel A plurality of spokes are arranged upward, and the spoke wheel drives the seed distributing plate to move along the track cavity through the spokes; the inner ring opening of the track cavity is provided with an inner ring plate; the front of each seed distributing plate is provided with a spoon for holding seeds; the track shell is set There are a seed inlet and a seed injection port, and the seed inlet is fan-shaped; the seed feeding hopper is installed on the seed inlet to form a fan-shaped cavity at the seed inlet. The utility model does not need external force to clean the seeds, ensures no damage to the seeds in the process of clearing the seeds, and is suitable for sowing the germination seeds.

Description

Rotary seed meter

technical field

The utility model relates to the technical field of sowing equipment, in particular to a rotary seed metering device.

Background technique

my country is a country with a large population, and China's grain production cannot be ignored at any time. On the other hand, cotton is a strategic material of China's important agriculture. It is not only an important agricultural raw material for the textile and garment industry and product exports to earn foreign exchange, but also a staple cash crop for farmers to increase their income. In view of the international and domestic market demand, China is determined to be a major cotton planting country. The status of China is also unshakable. How to produce enough grain and cotton on limited arable land is the top priority of China's planting industry. However, considering the fact that Chinese people have more land and less land, it is necessary to implement double-cropping or multi-cropping planting at this stage. However, with the rapid advancement of urbanization, the labor cost has risen sharply, and the two-cropping mode of wheat and cotton is easy to cause low emergence rate, and the replanting (seedling) in the later stage is laborious and laborious, and the overall growth progress cannot be guaranteed. To solve these problems, research and development are urgently needed Simplified, mechanized germination seed direct seeding technology to increase the emergence rate, ensure the sowing density, and the cotton seedlings grow neatly, and accelerate the mechanization of cotton planting.

Utility Model Patent Publication CN1070078A discloses an internally filled rotary seed metering device. The rotary seed metering device is filled with inverted conical grooves on the seed metering wheel. According to the force analysis, the groove has a radial direction. The force makes the seeds squeeze on the shell, which is easy to damage the seeds, and the seeding area is approximately horizontal, and there is a void rate when it is low, and it is not easy to seed when the seeding wheel rotates at a high speed. Utility Model Patent Publication CN1849862A discloses a kind of internal cleaning type hole wheel type rice seed rotary seed metering device. The excess seeds are removed by brushing the seed wheel, and the seed clearing knife is used when the seeds are separated from the hole wheel, and the seeds are filled and cleared by external force. Utility Model Patent Publication CN201123233Y discloses a spoon wheel type rotary seed metering device, but the rotary seed metering device relies on a seed cleaning device and a seed cleaning brush to act on seeds. Utility model patent CN2884840Y discloses a kind of internal filling type rotary seed metering device, but this rotary type seed metering device will rely on the seed protection separation knife to push the redundant seeds away from the seed loading hole. Because above each patent all will rely on external force to carry out forced seed filling or seed arrangement, there will be extrusion force to seed, therefore be not suitable for sowing the pregerminating seed that damages easily.

Utility model content

(1) Technical problems to be solved

The purpose of the utility model is to provide a rotary seed metering device which will not cause extrusion damage to seeds due to seed cleaning.

(2) Technical solutions

In order to solve the above technical problems, the utility model provides a rotary seed metering device, comprising: a seed metering wheel, a track shell and a seed feeding hopper, the track shell has a ring-shaped track cavity, and the track cavity has an inner ring opening The seeding wheel includes a spoke wheel and a plurality of seed distribution plates, and a plurality of the seed distribution plates are arranged at intervals in the track cavity of the track shell, and two adjacent seed distribution plates and the inner ring plate and The track shell forms a seed distribution cavity; the spoke wheel is provided with a plurality of spokes in the circumferential direction, and the spoke wheel drives the seed distribution plate to move along the track cavity through the spokes; the inner ring opening of the track cavity is set There is an inner ring plate; a seed scoop is provided in front of each seed distribution plate; a seed inlet and a seed injection port are provided on the track shell, and the seed inlet is fan-shaped; the seed feeding hopper is installed on the On the seed inlet, a fan-shaped cavity is formed at the seed inlet.

Wherein, when the spoke wheel rotates counterclockwise, the seed inlet is located at the lower right corner of the track shell, and the angle of rotation of the seed distribution plate from the seed inlet to the seed injection port is not less than 180° .

Wherein, there is a seed clearing slope in front of the seed distributing board.

Wherein, a seed guide groove is provided on the back of the seed distribution board.

Wherein, the seed holding spoon is detachably connected with the seed distribution board.

Preferably, the track shell includes a main side plate and a secondary side plate that are relatively joined, and an outer ring plate is arranged between the main side plate and the secondary side plate; the seed distribution plate is fixed at the end of the spoke; The inner ring plate and the outer ring plate are concentrically fixed on the main side plate and/or the secondary side plate, and there are gaps for the spokes to pass through.

Wherein, the seed feeding hopper includes a bucket body and a seed feeding tube, the bucket body is fan-shaped, and the inner side is provided with a card slot for clamping on the track shell; one end of the seed feeding tube is connected to the The card slot is connected, and the other end is used to connect the seed supply box.

Wherein, the front of the seed distribution plate is provided with a first wear-resistant plate close to the inner ring plate, and the back of the seed distribution plate is provided with a second wear-resistant plate close to the inner ring plate.

Preferably, the track shell includes a main side plate and a secondary side plate that are relatively joined, an outer ring plate is arranged between the main side plate and the secondary side plate; the inner ring plate is fixed at the end of the spoke, The seed distribution board is installed on the outer surface of the inner ring board.

Wherein, the seed feeding hopper includes a bucket body and a seed feeding tube, the bucket body is fan-shaped, and the inner side is provided with a card slot for clamping on the track shell; one end of the seed feeding tube is connected to the The card slot is connected, and the other end is used to connect the seed supply box.

(3) Beneficial effects

The rotary seed metering device provided by the utility model does not need external force to clean the seeds, ensures no damage to the seeds in the process of clearing the seeds, and is suitable for sowing germination seeds; it can realize hole sowing of multiple seeds in one hole and avoid holes.

Description of drawings

Fig. 1 is the perspective view of the rotary seed metering device of the utility model embodiment 1;

Fig. 2 is the internal perspective view of the rotary seed metering device of the utility model embodiment 1;

Fig. 3 is the three-dimensional view of the feeding hopper of the utility model embodiment 1;

Fig. 4 is a perspective view of the main side panel of Embodiment 1 of the present utility model;

Fig. 5 is a perspective view of the auxiliary side panel of Embodiment 1 of the present utility model.

In the figure, 10: track shell; 11: seed injection port; 12: track cavity; 13: track shell mounting plate; 14: seed inlet; 15: gap; 20: seed wheel; 21: spoke wheel; 22: spoke ;23: seed distributing plate; 231: seed holding spoon; 232: seed clearing slope; 233: seed guide groove; 234: first wear plate; 235: second wear plate; 30: seed feeding bucket; 31: bucket body; 32: seed feeding tube; 33: seed feeding bucket mounting ear; 34: card slot; 40: main side plate; 41: first outer ring plate; 42: first inner ring plate; 50: secondary side plate; 51 : second outer ring plate; 52: second inner ring plate; 60: lug plate; 70: bolt assembly; 80: inner ring plate; 90: outer ring plate.

Detailed ways

Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the utility model is described in further detail. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "middle" etc. is based on the orientation or position shown in the drawings The relationship is only for the convenience of describing the utility model and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance. The term "the front of the seed distribution board" refers to the side facing the wind when the distribution board is moving, and the "back side of the distribution board" refers to the side that is leeward when moving.

Example 1:

Referring to FIGS. 1 to 5 , the rotary seed metering device of the present invention includes: a seed metering wheel 20 , a track shell 10 and a seed feeding bucket 30 .

The track housing 10 has an annular track cavity 12 with an inner ring opening. Specifically, as shown in FIGS. 1 , 4 and 5 , the track shell 10 includes a main side plate 40 and a secondary side plate 50 that are joined oppositely, and an outer ring plate 90 is provided between the main side plate 40 and the secondary side plate 50 . When the main side plate 40 is engaged with the secondary side plate 50, the main side plate 40, the secondary side plate 50 and the outer ring plate 90 form a track cavity 12 with an inner ring opening, and an inner ring opening is set at the inner ring opening position of the wheel track cavity 12. The ring plate 80 acts as a baffle, and at the same time, the inner ring plate 80 is provided with a gap 15 along the circumference for the seed wheel 20 to pass through. As shown in Figures 4 and 5, a first inner ring plate 41 and a first outer ring plate 42 are provided on the surface of the main side plate 40, and a second inner ring plate 51 is provided on the surface of the secondary side plate 50. and the second outer ring plate 52 , the widths of the first inner ring plate 42 and the second inner ring plate 52 are smaller than the widths of the first outer ring plate 41 and the second outer ring plate 42 . Ear plates 60 are provided outside the main side plate 40 and the secondary side plate 50, and the ear plates 60 are butted with each other through bolt assemblies 70. After the butt joint, the first ring plate 41 and the second outer ring plate 51 form an outer ring plate 90, The first inner ring plate 42 and the second inner ring plate 52 form an inner ring plate 80 with a gap 15 therebetween. The width of the slit 15 is smaller than the diameter of the seed, so as to prevent the seed from leaking out of the slit 15 . A track shell mounting plate 13 is provided on the track shell 10 for installing the track shell. In this embodiment, since a part of the inner ring plate 80 can be fixed on the main side plate 40 and a part can be fixed on the secondary side plate 50, it can also be integrally fixed on the main side plate 40 or the secondary side plate 50. The inner ring plate 80 The role is to prevent the seeds from falling out.

The seed wheel 20 includes a spoke wheel 21 and a plurality of seed distribution plates 23 . The shape of the seed distribution plate 23 is adapted to the cross section of the track cavity 12, and a plurality of seed distribution plates 23 are arranged at intervals in the track cavity 12 of the track shell 10, and the outer ends of the seed distribution plates 23 move along the inner surface of the outer ring plate . A seed distribution cavity is formed between two adjacent seed distribution plates 23 , the inner ring plate 80 and the track shell 10 . The center of spoke wheel 21 is provided with axle hole, and is provided with keyway on axle hole, is fixedly installed on a driving shaft by key, and driving shaft is arranged horizontally. The circumferential outer edge of the spoke wheel 21 is provided with a plurality of spokes 22, the number of the spokes 22 and the seed distribution plates 23 is the same, the spokes 22 pass through the gap 15, and the seed distribution plates 23 are fixed on the ends of the spokes 22 one by one. The spoke wheel 21 drives the seed distribution plate 23 to rotate along the track cavity 12 through the spokes 22 . When the seed distribution plate 23 rotates, the position of the seed distribution cavity changes accordingly. It should be noted that the number of spokes 22 is not necessarily the same as the number of seed distribution plates 23 . Seed holding spoon 231 is detachably connected with seed distribution plate 23, which is convenient for replacing seed holding spoons of different diameters, and is suitable for sowing of different crops with different sowing rates.

The track shell 10 is provided with a seed inlet 14 and a seed injection port 11 . As shown in FIGS. 4 and 5 , fan-shaped gaps are respectively opened on the main side plate 40 and the secondary side plate 50 . After the two are combined, the seed inlet 14 has a fan-shaped structure. As shown in Figure 2, when the spoke wheel 21 rotates counterclockwise, the seed inlet 14 is located at the lower right corner of the track housing 10; lower left corner. The rotation angle of the seed distribution plate 23 from the seed inlet 14 to the seed injection port 11 is not less than 180°. Each seed distributing plate 23 is provided with a seed spoon 231 in front of it. In order to avoid holes in the seeds, ensure the emergence rate and facilitate seed discharge, the seed spoon 231 is hemispherical and has a diameter of 8 to 12mm, which can ensure that it can hold 3 seeds at the same time. ～5 seeds; Seed distribution plate 23 back side is provided with guide seed groove 233. The cross-section of the seed distribution board 23 is arc-shaped or inverted "V"-shaped structure, so that a seed clearing slope 232 is formed in front of the seed distribution board 23 .

In order to prevent the seeds from being damaged during transportation in the track cavity 12, a first wear-resistant plate 234 is provided near the inner ring plate 80 in front of the seed distribution plate 23, and a second wear-resistant plate 234 is provided on the back of the seed distribution plate 23 near the inner ring plate 80. Board 235.

The seed feeding hopper 30 is installed on the seed inlet 14 for providing seeds to the seed inlet 14 . The seed hopper includes a hopper body 31 and a seed inlet pipe 32 . The bucket body 31 is fan-shaped, and the inner side of the bucket body 31 is provided with a slot 34 for clamping on the track shell 10 . One end of the seed feeding pipe 32 communicates with the draw-in groove 34, and the other end is used for connecting the seed supply box. After the bucket body 31 is installed on the track shell 10, there is a fan-shaped cavity between the card slot 34 and the seed inlet 14. seed area. For the convenience of installation, the seed hopper is provided with a seed hopper installation ear 33 for being installed on the frame. The outlet of the seed inlet pipe 32 is located at the middle and lower part of the slot 34 of the bucket body 31, so that the fan-shaped cavity formed by the seed inlet 14 and the slot 34 is divided into a seed area and a cavity area, namely a seed filling area and a seed clearing area.

Specifically, in this embodiment, the diameter of the seeding wheel 20 is 280-300 mm, and the diameter of the shaft hole of the spoke wheel 21 is 30 mm. The seeding wheel 20 rotates once to sow 15 holes, and the distance between the holes can be reliably adjusted by adjusting the rotation speed of the seeding wheel. The starting point of the seeding opening 11 is at an angle of 20° with the vertical direction, so that the seeds are close together when the seeding can be guaranteed, and several seeds are guaranteed to be thrown out (hole sowing) simultaneously. The starting point of the seed inlet 14 is at an angle of 20 to 30° with the vertical direction, and the angle at the end is 65 to 75°; the angle between the outlet of the seed inlet tube 32 and the vertical direction is 40°, and the seeds are distributed at 30° to 50°. Thus, the fan-shaped cavity of the seed inlet 14 forms a seed filling-seeding clearing area. Seed feeding hopper 30 is fan-shaped, and central angle is 70～80 °, and the width of draw-in groove 34 is 65mm, so that redundant seed has enough to break away from (self-cleaning kind) space after filling.

When the rotary seed metering device of the present utility model is working, a small amount of germination seeds are transported to the seed hopper 30 through the external seed supply box, the seed metering wheel 20 rotates under the drive of the external drive shaft, and when the seed distribution plate 23 rotates, the seed distribution plate 23 The front of the front part of the container is in contact with the seeds in the seed filling area, and a part of the seeds will be taken up by the seed scoop 231. With the movement of the seed distribution plate 23, the seed scoop 231 filled with seeds will leave the seed filling area and enter the upper part of the seed clearing area. , at this time, under the action of gravity, the seeds falling in front of the seed distribution plate 23 fall back to the seed filling area along the seed clearing slope 232, and the seeds in the seed scoop 231 will be taken away smoothly and move along the track cavity 12, With the change of the rotation angle, the seeds in the seed scoop 231 will be poured out onto the first wear plate 234 . Since a seed distribution cavity is formed between two adjacent seed distribution boards 23 and the track housing 10, when the seed distribution board 23 turns over the highest point, the seeds on the first wear-resistant plate 234 enter the back of the previous seed distribution board 23 In the seed guide groove 233, and be protected by the second wear-resistant plate 235 to prevent damage, when the seed holding spoon 231 continues to move to the seed injection port 11, several seeds will be smoothly thrown into the external seed delivery tube as a whole, Then enter the opened seed ditch to complete the sowing process.

Example 2:

This embodiment is basically the same as Embodiment 1, except that the track shell includes a main side plate and a secondary side plate that are relatively joined, and an outer ring plate is arranged between the main side plate and the secondary side plate, and the outer ring plate and the radial The central hole of the wheel is concentric, and the main side plate, secondary side plate and outer ring plate form a track cavity. The inner ring plate is fixed on the end of the spoke, and the seed distribution plate is installed on the outer surface of the inner ring plate. In this embodiment, two adjacent seed distribution plates, the track shell and the inner ring plate form a seed distribution chamber. When rotating, the spoke wheel drives the spokes to rotate, and the inner ring plate rotates with the spokes, thereby driving the seed distribution plate to rotate. That is, the difference between this embodiment and Embodiment 1 mainly lies in that in this embodiment, the inner ring plate is fixed on the end of the spoke and rotates together with the spoke. And because there is no relative movement between the seed distribution plate and the inner ring plate, there is no need to arrange a wear plate on the seed distribution plate.

Using the rotary seed metering device of the utility model, no external force is needed to clear the seeds, ensuring no damage to the seeds during the clearing process, especially suitable for the sowing of germination seeds, and also suitable for the sowing of general seeds; it can realize the production of multiple seeds in one hole Sowing in holes, avoiding holes.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (10)

1. A rotary seed metering device, characterized in that, comprises: a seed wheel, a track housing and a seed feeding hopper, the track housing has an annular track cavity, and the track cavity has an inner ring opening; the row The seed wheel includes a spoke wheel and a plurality of seed distribution plates, and a plurality of the seed distribution plates are arranged at intervals in the track cavity of the track shell, and two adjacent seed distribution plates form a distribution pattern with the inner ring plate and the track shell. A seed cavity; the spoke wheel is provided with a plurality of spokes on its circumference, and the spoke wheel drives the seed distribution plate to move along the track cavity through the spokes; the inner ring opening of the track cavity is provided with an inner ring A seed scoop is provided in front of each of the seed distribution boards; the track shell is provided with a seed inlet and a seed injection port, and the seed inlet is fan-shaped; the seed feeding hopper is installed on the seed inlet , forming a fan-shaped cavity at the seed inlet. 2. The rotary seed metering device according to claim 1, characterized in that, when the spoke wheel rotates counterclockwise, the seed inlet is located at the lower right corner of the track shell, and the seed distributing plate is formed by The rotation angle from the seed inlet to the seed injection port is not less than 180°. 3. The rotary seed metering device according to claim 2, characterized in that there is a seed clearing slope in front of the seed distribution plate. 4. The rotary seed metering device according to claim 1, characterized in that, a seed guide groove is provided on the back of the seed distribution plate. 5 . The rotary seed metering device according to claim 1 , wherein the seed scoop is detachably connected to the seed distribution board. 6 . 6. The rotary seed metering device according to any one of claims 1 to 5, characterized in that, the track shell includes a main side plate and a secondary side plate that are relatively joined, and the main side plate and the secondary side plate are There is an outer ring plate between them; the seed distribution plate is fixed on the end of the spoke; the inner ring plate and the outer ring plate are concentrically fixed on the main side plate and/or the secondary side plate, and Slits for passing the spokes are provided. 7. The rotary seed metering device according to claim 6, characterized in that, the seed feeding hopper includes a bucket body and a seed feeding tube, the bucket body is fan-shaped, and the inner side is provided with a card slot for clamping On the track shell; one end of the seed injection pipe communicates with the card slot, and the other end is used to connect to the seed supply box. 8. The rotary seed metering device according to claim 6, characterized in that, the front of the seed distribution plate is provided with a first wear-resistant plate close to the inner ring plate, and the back of the seed distribution plate is provided close to the inner ring plate. There is a second wear plate. 9. The rotary seed metering device according to any one of claims 1 to 5, characterized in that, the track shell includes a main side plate and a secondary side plate that are relatively joined, and the main side plate and the secondary side plate are An outer ring plate is arranged between them; the inner ring plate is fixed on the end of the spoke, and the seed distribution plate is installed on the outer surface of the inner ring plate. 10. The rotary seed metering device according to claim 9, characterized in that, the seed feeding hopper includes a bucket body and a seed feeding pipe, the bucket body is fan-shaped, and the inner side is provided with a card slot for clamping On the track shell; one end of the seed injection pipe communicates with the card slot, and the other end is used to connect to the seed supply box.