An outer groove wheel type precision seeder for long-grain rice

Abstract

The invention provides an outer groove wheel type precision seeder for long-grain rice, comprising a seed box with both front and rear walls being inclined surfaces, a foldable inclined plate being installed on the rear wall of the seed box, one side of the inclined plate being connected to the rear wall of the seed box, and the other side being a semicircular inclined surface with a radius tangent to a seeding wheel, and the angle of the inclined surface can be adjusted by adjusting a hinge, a rolling seeding wheel is installed in the seeding groove, an adjusting shaft is connected to the seeding wheel, the size of the seeding groove can be adjusted, and the adjusting shaft is connected and fixed to a seeding groove adjusting knob in the middle of the inclined surface. During sowing, the length of the seeding groove and the angle of the foldable inclined plate are adjusted according to the length of the seeds, so that the seeds are obliquely seeded, and under the action of the rolling of the seeding wheel, the longitudinal arrangement direction of the seeds is made consistent with the rolling direction of the seeding wheel, so that the seeds are fully seeded, and the purpose of precision seeding of long-grain rice is achieved.

Description

Technical Field

[0001] The invention belongs to the field of agricultural machinery, and in particular to the field of seeding machinery. Background Art

[0002] When the outer groove wheel seeder sows rice, the sowing amount is controlled by adjusting the length of the groove. The longer the groove, the larger the sowing amount, while the shorter the groove, the smaller the sowing amount. When used for small sowing, the groove area on the seed wheel is adjusted to a smaller size, and only the seeds at the position of the groove can be filled into the groove for sowing. When 2 to 3 seeds are required for precision sowing, because seeds of different varieties are of different lengths, some long-grain seeds are usually placed horizontally due to the rotation of the seed box wall and the groove wheel. When the width of the seeding groove is less than the length of the seed, it cannot be filled into the groove, which makes the sowing accuracy worse. When the width of the seeding groove is greater than the length of the seed, too many seeds are filled into the seed groove, making it difficult to achieve precision sowing. Summary of the invention

[0003] The object of the present invention is to solve the defects of the above-mentioned prior art and to provide an outer groove wheel precision seeder for long-grain rice. During the sowing process, the seeder unifies the horizontally arranged long-grain seeds into a longitudinal arrangement direction through the rotation of the foldable inclined plate on the rear wall of the seeding groove and the seeding wheel, so that the seeds are longitudinally filled into the seeding groove to achieve precision sowing, and the sowing amount is controlled by the adjusting shaft.

[0004] The present invention adopts the following technical solution:

[0005] An outer groove wheel precision seeder for long-grain rice, consisting of a seed box, a seeding slot, and a seed guide tube, wherein the outlet of the seed box is connected to the inlet of the seed slot, and the outlet of the seed slot is connected to the funnel-shaped inlet of the seed guide tube, wherein the seed slot consists of a seeding wheel and a shell with upper and lower openings, wherein a portion of the seeding wheel is arranged in the shell, and another portion is arranged outside the shell, wherein the portion of the seeding wheel arranged in the shell has a seeding slot of adjustable size, and a seed cleaning brush is installed in the shell, wherein the installation position corresponds to the seeding slot of the seeding wheel and contacts the seeding wheel. A foldable plate having a radius matching the radius of the circular surface of the seeding wheel is installed on the seeding wheel, so that the seeding wheel and the foldable plate can be matched during installation.

[0006] Furthermore, the seed wheel is composed of a groove wheel and an adjusting wheel disc. The groove wheel includes two concentric large-diameter cylinders and small-diameter cylinders with different diameters, and the outer peripheral surface of the large-diameter cylinder has a group of long grooves along the axial direction. The length direction of the long grooves is the same as the axial direction of the cylinder and is evenly distributed along the circumference.

[0007] The adjusting wheel is a wheel with a center hole. Rods matching the long grooves on the groove wheel are evenly distributed on one side of the wheel. A section of the rod has a protrusion of a certain height to clamp the foldable plate. The other side of the wheel is a concentric hollow pipe. The hollow pipe is a ring body with two different diameters, which are arranged at intervals to form high and low staggered annular teeth. The annular teeth are interlocked with the gears on the seed slot adjustment knob.

[0008] The small diameter cylinder of the groove wheel is inserted into the central hole of the adjusting wheel disc and the hollow pipe fitting, and the long groove of the groove wheel is matched and connected with the rod of the adjusting wheel disc to form a seeding groove. The size of the seeding groove can be adjusted by adjusting the matching relationship between the long groove and the rod fitting.

[0009] The angle between the foldable plate and the horizontal plane is in the range of 30°-45°

[0010] Furthermore, the groove wheel has an axial center hole, and the transmission shaft is installed in the center hole.

[0011] Furthermore, the foldable plate includes an inclined plate arc edge, an inclined plate bent edge, and a hinge. The inclined plate arc edge is connected to the inclined plate bent edge hinge through a folding hinge. The radius of the inclined plate arc edge is consistent with the radius of the seeding wheel, so that the inclined arc edge just matches the arc surface of the seeding wheel, and is connected to the rod on the adjusting wheel, and the other end is fixed to the seed box.

[0012] Beneficial effects of the present invention:

[0013] General filling:

[0014] When the seeder is sowing, the expected number of seeds in the elliptical seeding groove of the seeding wheel is controlled by the seeding wheel adjustment knob, and the position of the foldable inclined plate is adjusted synchronously to make the rice be injected into the seeding groove in a funnel shape, and the long-grain seeds arranged horizontally are adjusted to be arranged longitudinally in the rolling direction of the seeding wheel through the rolling of the seeding wheel. The filled seeds fall into the corresponding position of the seed guide tube and are discharged, while the unfilled seeds remain in the seed box under the blocking effect of the brush. In this way, the seeder is suitable for the filling of short round-grain rice (japonica rice).

[0015] When filling 2-3 seeds:

[0016] Generally, when sowing, the length of the seed trough and the position of the foldable inclined plate are adjusted according to the length of the seeds so that the seeds are filled obliquely. Under the action of the rolling of the seed wheel, the longitudinal arrangement direction of the seeds is consistent with the rolling direction of the seed wheel, so that 2-3 grains are filled in the seed trough, achieving the purpose of precise filling of long-grain rice.

[0017] When sowing long-grain rice, the foldable inclined plate forms a funnel-shaped outlet in the seeding box, and the seeds are concentrated at the position of the seeding groove on the seeding wheel. When the seeds are placed horizontally, the length of the seeding groove does not allow the rice seeds to fall into the seeding groove. However, when the seeding wheel rotates, the groove wall of the seeding groove and the foldable inclined plate have an extrusion effect on the lower shell wall of the flat rice seeds, so that the rice seeds are arranged vertically or the seed groove is released, so that the seeds are vertically filled into the seeding groove. When the seeding groove rotates, the seeds are discharged from the seed guide tube under the action of gravity, and the seed cleaning brush arranged in the shell will leave the seeds outside the seeding groove in the seed box, so that normal operation can be achieved when only 2-3 long-grain rice seeds can be placed in the groove. Such long-grain rice seeds are generally indica rice varieties with a length of 5-12 mm. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A front view of the seeder provided by the present invention;

[0019] Figure 2 It is a side view of the seeder of the present invention;

[0020] Figure 3 It is a schematic diagram of folding the foldable inclined plate of the growth regulating trough for sowing according to an embodiment of the present invention.

[0021] Figure 4 A combined diagram of a seeding wheel according to an embodiment of the present invention;

[0022] Figure 5 It is a structural diagram of a groove wheel of a seeding wheel according to an embodiment of the present invention;

[0023] Figure 6 It is a structural diagram of an adjusting wheel disc of a seeding wheel according to an embodiment of the present invention;

[0024] Figure 7 2 is a structural diagram of an arc-shaped inclined plate according to an embodiment of the present invention.

[0025] In the figure: 1-seed box, 2-seed wheel, 3-seed guide tube, 4-housing, 5-seed cleaning brush, 6-seed slot adjustment knob; 7-foldable inclined plate

[0026] 21-groove wheel, 22-axial hole, 23-large diameter cylinder, 24-long groove, 240-seedling groove, 25-adjusting wheel disc, 26-wheel disc, 261-center hole, 27-rod, 28-hollow pipe, 281-ring teeth, 29-thin cylinder,

[0027] 41-type box sides, 43-type slot adjustment knob support frame,

[0028] 61-knob with scale, 62-gear, 63-adjustment rod.

[0029] 71- inclined plate arc edge, 72- inclined plate bent edge, 73- hinge. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention is described clearly and completely below. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] like Figure 1 , 2 As shown in Figure 3, an outer groove wheel type precision seeder for long-grain rice of the present invention has a seed wheel 2 surrounded by a shell 4, an upper inlet end of the shell 4 around the seed wheel 2 is fixedly connected to the outlet of the seed box 1, and a lower outlet end of the shell 4 around the seed wheel 2 is connected to the funnel-shaped inlet portion of the seed guide tube 3.

[0032] A matching foldable inclined plate 7 is installed in the seed box 1. The seed wheel 2 is rotated outward through the seed groove adjusting knob 6 to form a seed groove 240 of a certain size. At the same time, the hinge 73 is pulled to adjust the foldable inclined plate 7 while adjusting the knob, so that the seed groove 240 is easy to be filled with seeds.

[0033] The seed cleaning brush 5 is installed inside the housing 4 of the seeding wheel 2. The seed cleaning brush 5 is tangent to the seeding wheel 2 to ensure that the seeds outside the seeding groove 240 are retained in the seed box 1 and are not discharged.

[0034] like Figure 4 , 5 As shown in Figure 6, the seeding wheel 2 is composed of two parts embedded in each other, including a groove wheel 21 and an adjusting wheel disc 25. The groove wheel 21 includes two cylinders with different diameters, including a large diameter cylinder 23 and a thin cylinder 29. The two parts form a transmission shaft groove wheel 21, and there is an axial hole 22 in the large diameter cylinder 23 and the thin cylinder 29. The function of the axial hole 22 is the same as that of the center hole 261, and is used to form the relevant structure of the seeding wheel 2.

[0035] The adjusting wheel 25 includes a group of rods 27, a wheel 26, and a hollow tube 28. The rods 27 are evenly distributed on the circumference of the side of the wheel 26. The center of the wheel 26 is connected to the hollow tube 28. A thin cylinder 29 passes through a center hole 261 on the wheel 26, so that the wheel 25 and the adjusting wheel 26 support each other to form a seed wheel 2 structure.

[0036] On the large diameter cylinder 23 , the length and direction of the long grooves 24 are the same as the axial direction of the large diameter cylinder 23 and are evenly distributed along the circumference.

[0037] The angle between the foldable plate and the horizontal plane is in the range of 30°-45°

[0038] The number of the rods 27 on the adjusting wheel 26 is the same as the number of the long grooves 24 on the groove wheel 21 , the length of the rods 27 is consistent with the length of the long grooves 24 on the groove wheel 21 , and the shape of the rods 27 and the shape of the long grooves 24 are consistent.

[0039] like Figure 2 , 6 As shown, the outer surface of the hollow pipe 28 is a plurality of equally spaced rings of two different diameters, which are arranged at intervals to form high and low staggered annular teeth 281. The seeding slot adjustment knob 6 comprises a knob 61 with a scale, a gear 62, and an adjustment rod 63. The adjustment rod 63 is installed in the center of the knob 61, and the gears 62 are evenly distributed on the edge of the knob 61. When the knob 61 is adjusted, the gear 62 is driven, and the hollow pipe 28 is driven by the interlocking action of the gear 62 and the annular teeth 281. When the gear 63 moves outward, the hollow pipe 28 moves backward, and when the gear 63 moves inward, the hollow pipe 28 moves forward.

[0040] When adjusting by adjusting the wheel disc 26, the matching rod 27 and the long slot 24 form a seeding slot 240, and the length of the seeding slot 240 can be changed according to the adjustment degree.

[0041] The seeding slot adjusting knob 6 is pulled outwards, the width of the seeding slot 240 increases, and at the same time, the foldable inclined plate hinge 73 is driven to make the foldable inclined plate form a certain angle.

[0042] A foldable inclined plate 7 is installed in the seed box 1. The foldable inclined plate 7 includes an inclined plate arc edge 71, an inclined plate bent edge 72, and a hinge 73. The inclined plate arc edge 71 is connected to the inclined plate bent edge 72 through the hinge 73. The inclined plate arc edge 71 is clamped on the rod 27 of the seed wheel 2 (protruding from the tip of the rod 27). The purpose is to make the seeds slide into the seeding groove 240 along the inclined surface of the foldable inclined plate 7, and the long-grain seeds can easily enter the seeding groove 240 according to the rotation direction of the seeding wheel 2, so as to achieve the purpose of precision sowing.

[0043] Working process of the present invention:

[0044] During sowing, the width of the seed slot is adjusted by adjusting the shaft according to the width of the seeds and the number of seeds to be sown, and the foldable inclined plate 7 is pulled to a fixed angle at the same time. Since the foldable inclined plate 7 forms a funnel-shaped outlet in the seed box 1, the seeds are concentrated at the position of the seed slot on the seed wheel 2. Driven by the rotation of the seed wheel 2, the slot wall of the seed slot 240 of the seed wheel 2 and the foldable inclined plate 7 have an extrusion effect on the lower shell wall of the flat rice seeds, so that the rice seeds are arranged vertically or leave the seed slot, so that the seeds are vertically filled into the seed slot 240. When the seed slot 240 rotates, the seeds are discharged from the seed guide tube 3 under the action of gravity, and the seed cleaning brush 5 arranged in the shell 4 will leave the seeds outside the seed slot in the seed box 1, thereby realizing the filling and seeding of 2-3 long-grain rice seeds in the seed slot.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An outer groove wheel type precision seeder for long-grain rice, characterized in that: The invention comprises a seed box, a seed wheel and a seed guide tube, wherein the outlet of the seed box is connected to the inlet of the seed groove correspondingly, the outlet of the seed groove is connected to the funnel-shaped inlet of the seed guide tube, the seed groove is composed of a seed wheel and a shell, a part of the seed wheel is arranged in the shell, and the other part is arranged outside the shell, the part of the seed wheel arranged in the shell has a seed groove of adjustable size, a seed cleaning brush is installed in the shell, the installation position is vertically corresponding to the seed groove of the seed wheel, and can contact the seed groove of the seed wheel, and is installed in the seed box. There is a foldable inclined plate, one end of which is an arc edge, and the radius of the arc edge is the same as the radius of the circular surface of the seed wheel. The foldable inclined plate includes an inclined plate arc edge, an inclined plate bent edge, and a hinge. The inclined plate arc edge is connected to the inclined plate bent edge hinge through a folding hinge. The radius of the inclined plate arc edge is consistent with the radius of the seed wheel, so that the inclined surface arc edge just matches the arc surface of the seed wheel. One end is connected to the rod on the adjusting wheel, and the other end is fixed on the seed box. It is characterized in that the angle range between the foldable inclined plate and the horizontal plane is 30°-45°.

2. The outer groove wheel type precision seeder for long-grain rice according to claim 1, characterized in that: The seeding wheel is composed of a groove wheel and an adjusting wheel disc, wherein the groove wheel comprises two concentric sections of a large diameter cylinder and a small diameter cylinder with different diameters, and a group of long grooves with lengths uniformly distributed along the axial direction are provided on the circumferential surface of the large diameter cylinder; The adjusting wheel includes a wheel with a central hole, a rod, and a hollow pipe. One side of the wheel is evenly distributed with rods matching the long grooves on the groove wheel. The top of the rod has a protrusion of a certain height, which clamps the foldable inclined plate. The other side of the wheel is a concentric hollow pipe. The hollow pipe is a ring body with two different diameters, which are arranged at intervals to form high and low staggered annular teeth. The annular teeth are interlocked with the gears on the seeding slot adjustment knob. The small diameter cylinder of the groove wheel is inserted into the central hole of the adjusting wheel disc and the hollow pipe fitting, and the long groove of the groove wheel is matched and connected with the rod of the adjusting wheel disc to form a seeding groove. The size of the seeding groove can be adjusted by adjusting the matching relationship between the long groove and the rod fitting.

3. The outer groove wheel type precision seeder for long-grain rice according to claim 1, characterized in that: The groove wheel has an axial center hole, and the transmission shaft extends into the axial center hole of the groove wheel and is fixedly connected with the seeding wheel to drive the seeding wheel to rotate.

4. The outer groove wheel type precision seeder for long-grain rice according to claim 1, characterized in that: The filling method is: Step 1. When sowing, adjust the width of the seed slot by turning the seed slot adjustment knob and adjusting shaft according to the width of the seeds and the number of seeds to be sown; Step 2: Drive the foldable inclined plate to a certain angle, and through the driving effect of the seed wheel during rotation, the long-grain seeds are vertically filled into the seed slot. Step 3. As the seed dispensing machine rotates downward, the seeds in the seed dispensing slot are discharged along with the seed dispensing slot, while the seeds outside the seed dispensing slot are retained in the seed box due to the action of the seed cleaning brush, thus achieving precision sowing.

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