CN106856743A - A kind of triangle girdle type Riceseedling raising seeder - Google Patents

Abstract

The invention provides a triangular ring-belt type seedling seeder for rice, which is provided with a first-level quantitative distribution structure for seeds, a second-level quantitative structure for seeds, and a fixed-distance and directional seeding structure for seeds. The present invention enables the seeder to have a larger seed filling area, and also has the function of automatic seed clearing, and can make the seeding position accurate, balanced and without seed damage without the need of a seed protection mechanism or a simple seed protection device.

Description

A triangular belt type seedling seeder

technical field

The invention relates to the field of rice seedling raising and sowing machines.

Background technique

The outer groove wheel seeder is a kind of seeder widely used in seeders. It is characterized in that there are multiple seed grooves on the outer surface of a cylinder as the seeding wheel. During sowing, the seeds will be placed on the top of the seeding wheel. The seeds are filled into the seed trough, and the seed wheel rotates to drive the seeds to move to the bottom of the seed wheel for seeding. According to this feature, the larger the diameter of the seed metering wheel, the larger the seed filling area, which is conducive to seed filling. However, since the seeds need to move from the top of the seed metering wheel to the bottom, the stroke is relatively large, and the seeding error is large. on the contrary. In practical applications, it is usually determined according to actual needs. In the seedling sowing of rice seedlings used by rice transplanters, due to the large amount of seeding, for the convenience of filling seeds, a large-diameter outer grooved wheel seed meter is usually used to increase the filling area. In order to place the seeds accurately, there is usually a fixed and rigid arc-shaped seed protection plate that is close to the surface of the sheave to keep the seeds in the groove. Since the seed sheave is a rotating part, the seed protection The board is a static part, and the two have relative motion during the sowing process. This relative motion has a rubbing effect on the seeds, which is easy to cause damage to the seeds. In addition, for the rice seedling seedling seeding machine, the seed metering device needs to have a wide horizontal sowing width, and the fixed and rigid arc-shaped seed protection plate has an impact on the left and right sides, which makes the seed damage more serious; in practical applications, the seed damage is often More, affecting the quality of sowing. In addition, this cylindrical outer grooved wheel type seeder accumulates more seeds on the seed wheel, and it is difficult to clear the seeds, so it is necessary to completely require the mandatory seed clearing device to clear the seeds.

Contents of the invention

The technical problem to be solved by the present invention is to provide a triangular ring-belt type seedling seeder for rice, so that the seeder can have a larger seed filling area, and has an automatic seed clearing function, and does not need a seed protection mechanism or a simple seed protection device Just can make the planting position accurate, balanced, can not damage seed. For this reason, the present invention adopts following technical scheme:

A triangular belt-type seedling seeder, including a seed box, a ring belt and its guide shaft, characterized in that the seedling seeder is provided with a seed-level quantitative control distribution structure, a second-level quantitative structure for seeds, and a fixed-distance orientation for seeds The seeding structure, the first-level quantitative distribution structure of the seeds is formed by the first inclined angle of the annular belt and the seeding groove on the annular belt, and the fixed-distance directional seeding structure is formed by the second inclined angle of the annular belt, The seed feeding groove on the annular belt forms with the seed protection brush close to the annular belt on the outside of the second shaft, and the seed injection outlet is formed between the seed protection hair brush and the annular belt at the side of the second shaft, the first The angle of inclination is greater than the angle of repose of the sown seeds on the annulus, and the second inclination angle is smaller than the angle of repose of the sown seeds on the annulus;

The guide shaft includes three mutually parallel shafts, the three shafts are respectively at the vertices of an angle of the triangle, the first shaft and the second shaft are at the bottom, the first shaft and the second shaft are respectively close to the bottom of the seeder, and the third shaft Above between the first axis and the second axis is the top axis, the first inclination angle is the inclination angle of the annulus between the first axis and the third axis, and the second inclination angle is the inclination angle between the third axis and the third axis The inclination angle between the two axes; the secondary quantitative structure of the seed is a seed cleaning brush above the third axis.

Further, the outer surface of the endless belt has a set of long grooves equidistant along the width direction of the endless belt as seed feeding grooves, and the set of long grooves are uniformly arranged along the length direction of the endless belt.

Further, the seed box is placed above the ring belt between the first shaft and the third shaft; the seed box is formed from around the plate, and there is a section of vertical curved plate bent inward on the front side; There is a section of vertically downward inclined bending plate on the side; there is a distance in the vertical direction between the inner bending section of the front vertical bending plate of the seed box and the vertical section of the rear side inclined bending plate, and is formed behind the seed box. There is an opening at the lower side as a seed outlet, from which the seeds flow to the seeding ring; the inner bending section of the front vertical curved plate exceeds the vertical section of the rear inclined curved plate in the horizontal direction, and the vertical downward The obliquely bent plate forms a back-seeding baffle, and the area between the seed outlet and the ring belt above the exceeding section of the inner bending section forms a seed-filling area;

The inner bending section of the vertical bending plate on the front side is in contact with the ring belt at the side of the first bottom shaft, so that the seeds cannot leak from here; There is a certain distance between the annular belts in the transverse direction, so that there is a certain space between the rear inclined curved plate and the annular belt between the first shaft and the third shaft, so that the seeds that have not entered the seeding groove of the annular belt can Smoothly flow down along the surface of the belt and return to the filling area, forming a return-seeding area that can be transported preferentially.

During the sowing process, the seeds in the seed box fall to the lower portion of the seeding ring belt between the first shaft and the third shaft through the seed outlet and enter the groove of the seeding ring belt, and Driven by the rotation of the seed annulus, the seeds move upwards, and the seeds that do not enter the groove, because the angle of the annulus of this section is greater than the angle of repose of the seeds, the seeds slide down and return to the seed filling area under the action of gravity. After entering the groove next time, when the seeds moving up with the ring belt enter the position of the third axis, they will be cleared by the seed cleaning brush again, so that the seeds in the groove retain the amount required for sowing, due to the second axis The angle between the line connected to the third axis and the horizontal plane is smaller than the angle of repose of the sown seeds. The seeds in this section are relatively stable, and there is no movement phenomenon of the relative ring. The seeds are kept constant between the second axis and the third axis. The gap is forced to continue to move to the position of the second axis. As the ring belt turns near the bottom of the seeder, the seeds are oriented and fall to the lower seedling tray to complete the sowing. During the turning process, due to the flat brush The protection of the type seed protection, the seeds do not leave the groove until the turning is completed, and the seeds leave the seed protection area, and the seeds fall uniformly. Due to the small diameter of the shaft, the turning area of the ring belt is small and changes quickly. In addition, the flat brush type protection The softness and independence of the bristles on the seeding device have no damage to the seeds and no influence on each other. The protrusion of a certain point of the seeds will not affect the left and right, and there will be no phenomenon of clamping and damaging the seeds. Protect and drop seeds well.

Description of drawings

Fig. 1 is a schematic diagram of a triangular ring belt seedling seeder provided by the present invention.

Fig. 2 is a schematic diagram of the seeding belt of the triangular belt seedling raising seeder provided by the present invention.

Fig. 3 is a schematic diagram of the seed box of the triangular ring belt seedling seeder provided by the present invention.

detailed description

With reference to accompanying drawing 1,2,3. The triangular ring belt type seedling seeding device of the present invention includes a seed box 5, a ring belt 4 and its guide shaft, and the seedling raising seeding device is provided with a first-level quantitative distribution structure for seeds, a second-level quantitative structure for seeds, and fixed-distance directional sowing of seeds structure, the first-level quantitative distribution structure of the seeds is formed by the first inclined angle α of the annular belt and the seeding groove on the annular belt, and the fixed-distance directional seeding structure of the seed is formed by the second inclined angle β of the annular belt, The seed feeding groove on the annular belt is formed with the flat seed protection brush 7 abutting against the annular belt 4 outside the second shaft, and the seed injection outlet is formed between the seed protection hair brush and the annular belt at the side of the second shaft 503, the first angle of inclination is greater than the angle of repose of the sown seeds on the annulus, the second inclination angle is smaller than the angle of repose of the sown seeds on the annulus, the seeding annulus between the first axis 1 and the third axis 3 The seeds above 4 cannot stay on the ring belt, and always flow in the direction of the first axis 1 (downward), while the seeds on the seeding ring belt 4 between the second axis 2 and the third axis 3 are relatively static, Moves with the movement of the ring.

The seeder includes three mutually parallel axes forming a triangular distribution. The three axes are respectively located at the vertices of one corner of the triangle. The first axis 1 and the second axis 2 are at the bottom, which are two bottom corners. The connecting line forms the bottom edge of the triangle. , the third shaft 3 is above the two bottom shafts, it is the top angle, the seeding hoop 4 is wound on the three shafts, and the seed box 5 is located above the hoop 4 between the first shaft 1 and the third shaft .

The first inclination angle is the inclination angle of the annulus between the first axis and the third axis, and the second inclination angle is the inclination angle between the third axis and the second axis; the secondary quantitative structure of the seed is at the Above the three shafts, the cylindrical seed cleaning brush 6 parallel to the shafts.

The seeding ring 4 wound on the three axes is made of flexible material and has a ring structure with a certain width, the width is greater than or equal to the width of the seeding tray required, and the inner surface 41 of the seeding ring 4 is smooth. Smooth surface, the outer surface has a group of concave long grooves 42 along the width direction, forming a group of seeding grooves that are equidistant and of the same shape on the outer surface along the width direction, and the grooves 42 Can cause seeds to fall into it.

The seed box 5 starts from the four sides of the plate, and the left and right sides are parallel and symmetrical flat plates 51; the front side has a vertical curved plate 52 bent inward; the rear side has a vertically downward inclined curved plate 53 , the inclination of the obliquely bent plate 53 coincides with the inclination angle of the annulus 4 between the first shaft 2 and the third shaft 3; There is a distance in the vertical direction between the vertical section 530 of the vertical section, and an opening is formed at the position below the rear side as the seed outlet 54, and the seeds flow from here to the seeding ring belt; the inner bending of the vertical curved plate 52 on the front side Segment 520 exceeds the vertical section 530 of the rear side obliquely bent plate 53 laterally, and the vertically downward obliquely bent plate 53 forms a back-to-kind baffle, and the section 521 of the inner bent section is beyond the section 521 between the seed outlet and the ring belt. The area between forms the seed filling area 501, so that after the seeds flow out of the seed outlet 54, there is still a period of stay in the inner bending section 520 of the side vertical bending plate 52. The seed box 5 is placed above the seeding ring 4 between the first shaft 1 and the third shaft 3, the inner bending section 520 of the front vertical curved plate 52 and the side of the first shaft 1 The 4 places of the seeding annulus are in contact, so that the seeds cannot leak out from here, and the vertical section 530 of the rear side inclined curved plate 53 has a certain distance in the lateral direction from the seeding annulus 4 at the side of the first shaft 1, and at the same time There is a certain space between the rear side inclined bending plate 53 and the ring belt 4 between the first shaft 2 and the third shaft 3 to form a seeding area 502, so that it does not enter the groove 42 of the seeding ring belt 4 The seeds can smoothly flow down along the surface of the annular belt 4 and return to the seed filling area 501 . The seeds entering into the seed-filling area like this have the seeds that the seed box flows out and the seeds that flow back on the seeding ring belt 4, and the seeds that enter the seeding area 501 from the returning seeding area 502 can be transported by the seeding ring belt 4 preferentially, only When the returning seeds are insufficient, the seeds in the seed box are replenished.

Described cylindrical hairbrush seed clearing wheel 6 is a cylindrical elongated hairbrush, is installed on the ring belt 4 top on the 3rd axle, is used for removing the unnecessary seed that does not fall automatically, and cylindrical hairbrush seed clearing wheel 6 and the gap between the seeding ring belt 4 are adjustable, and the sowing rate can be controlled by adjusting the gap, and the length of the drum type hairbrush cleaning wheel 6 matches the width of the seeding ring belt 4.

Described flat-hair brush type seed protection device 7 is a prolate hairbrush, and flat-hair brush type seed protection device 7 is fixed on the both sides plates 51 of seed box 5 by two ends, and hairbrush is closely attached to The turning position on the triangular ring belt 4 on the second shaft 2 makes the seeds not be dropped here, but drops the seeds behind the corner to make the seeds accurate and unified.

The three parallel shafts forming a triangle, the drum type brush seed cleaning wheel 6 and the flat brush type seed protection device 7 are supported and fixed by the extensions 510 of the two side plates of the seed box to form a mechanism supported by the seed box. A triangular belt type seedling seeder is formed.

The above descriptions are only specific embodiments of the present invention, but the structural features of the present invention are not limited thereto, any changes or modifications made by those skilled in the art within the scope of the present invention are covered by the protection scope of the present invention among.

Claims (3)

1. A triangular belt-type seedling seeder, comprising a seed box, an annular belt and a guide shaft thereof, is characterized in that said seedling seeder is provided with a seed level quantitative control distance distribution structure, a seed secondary quantitative structure and a seed fixed The distance directional seeding structure, the first-level quantitative and distance control distribution structure of the seeds is formed by the first inclined angle of the annular belt and the seeding groove on the annular belt, and the fixed-distance directional seeding structure is formed by the second inclined angle of the annular belt. The angle, the seed feeding groove on the annular belt and the seed protection brush close to the annular belt outside the second shaft are formed, and the seed injection outlet is formed between the seed protection brush and the annular belt at the side of the second shaft, The first inclination angle is greater than the angle of repose of the sown seeds on the annular belt, and the second inclination angle is smaller than the repose angle of the sown seeds on the annulus; The guide shaft includes three mutually parallel shafts, the three shafts are respectively at the vertices of an angle of the triangle, the first shaft and the second shaft are at the bottom, the first shaft and the second shaft are respectively close to the bottom of the seeder, and the third shaft Above between the first axis and the second axis is the top axis, the first inclination angle is the inclination angle of the annulus between the first axis and the third axis, and the second inclination angle is the inclination angle between the third axis and the third axis The inclination angle between the two axes; the secondary quantitative structure of the seed is a seed cleaning brush above the third axis. 2. triangular belt type seedling seeder as claimed in claim 1, is characterized in that the outer surface of described belt has along belt width direction, equidistant one group of long grooves as seeding groove, described A set of long grooves is uniformly arranged along the length direction of the endless belt. 3. The triangular belt type seedling seeder as claimed in claim 1, wherein the seed box is placed above the ring belt between the first shaft and the third shaft; There is a section of vertical curved plate bent inward on the front side; a vertically downward inclined curved plate on the rear side; the inner bending section of the vertical curved plate on the front side of the seed box and the inclined curved plate There is a certain distance between the vertical sections in the vertical direction, and an opening is formed at the lower part of the rear side of the seed box as a seed outlet, from where the seeds flow to the seeding ring belt; the inner bending section of the vertical bending plate on the front side Transversely beyond the vertical section of the rear inclined curved plate, the vertically downward inclined curved plate forms a back-seeding baffle, and the area between the seed outlet and the ring belt above the inner bending section forms a seed filling Area; The inner bending section of the vertical bending plate on the front side is in contact with the ring belt at the side of the first bottom shaft, so that the seeds cannot leak from here; There is a certain distance between the annular belts in the transverse direction, so that there is a certain space between the rear inclined curved plate and the annular belt between the first shaft and the third shaft, so that the seeds that have not entered the seeding groove of the annular belt can Smoothly flow down along the surface of the belt and return to the filling area, forming a return-seeding area that can be transported preferentially.