Bidirectional seed meter

Abstract

The present invention discloses a bidirectional seeding device, including two seeding mechanisms, which are symmetrically arranged on the left and right sides of a connecting piece and connected in series through a seeding shaft, one end of which extends out of one of the seeding mechanisms and is connected to a power transmission mechanism, which provides power to the two seeding mechanisms to drive the seeds to be discharged from the seeding opening at the bottom of the seeding mechanism. The present invention has a simple structure and a reasonable design. By combining the two seeding mechanisms, the number of seeding spoons is increased, thereby reducing the rotation speed of the seeding device, improving the service life of the seeding device, making the machine work stably, and seeding more accurately. By combining the two seeding mechanisms, the seeding efficiency can be improved at a rotation speed at which the spoon wheel does not damage the seeds, greatly improving the operation speed, production efficiency and use efficiency during seeding.

Description

Technical Field

[0001] The invention relates to the field of agricultural machinery, and in particular to a bidirectional seed metering device. Background Art

[0002] The seed meter is a key component of the precision seeder and also the core component of the precision seeder. The existing seed meter generally improves the seeding efficiency by increasing the rotation speed of the seeding shaft. When the rotation speed of the seeding shaft is increased, the rotation speed of the scoop wheel is also increased. When the rotation speed of the scoop wheel is increased, the seed damage rate is also increased. When the rotation speed of the scoop wheel is too high, the operation stability of the machine is affected, and the service life of the machine is also affected. Therefore, its seeding efficiency is limited by the rotation speed of the scoop wheel, which makes it difficult for the seeder to achieve high-speed operation and cannot meet the requirements of precision seeding. Summary of the invention

[0003] The present invention provides a bidirectional seeding device, which combines two seeding mechanisms to increase the number of seeding spoons, thereby reducing the rotation speed of the seeding device, thereby improving its sowing efficiency at a rotation speed that does not damage the seeds. The specific technical solution is as follows: A bidirectional seeding device is characterized in that it comprises two seeding mechanisms, which are symmetrically arranged on the left and right sides of a connecting piece and are connected in series through a seeding shaft. One end of the seeding shaft extends out of one of the seeding mechanisms and is connected to a power transmission mechanism. The power transmission mechanism provides power for the two seeding mechanisms to drive seeds to be discharged from a seeding port at the bottom of the seeding mechanism.

[0004] Furthermore, the two seeding mechanisms are arranged obliquely, and the seeding shaft is driven to rotate through the power transmission mechanism, thereby driving the two seeding mechanisms to seed synchronously.

[0005] Furthermore, the seeding mechanism includes a chain box bottom cover and a chain box top cover buckled on the chain box bottom cover, a driving wheel is installed on the upper part of the chain box bottom cover, a passive wheel is installed on the lower part of the chain box bottom cover, the guide belt is sleeved on the driving wheel and the passive wheel, the seeding shaft is connected to the driving wheel, and then drives the guide belt to run, a number of seed supporting plates are evenly distributed on the outer wall of the guide belt, a seed separating plate, a spoon wheel and a cover are sequentially arranged on the outer side of the driving wheel, the cover is connected to the connecting piece, and a seeding tube connected to the seed box is arranged on the cover, the seed separating plate is located between the driving wheel and the spoon wheel, when working, the seed separating plate is stationary, the spoon wheel rotates with the driving wheel, and the seed taking spoon of the spoon wheel is used to move the seeds to run, and the seeds are sent to the seed supporting plate of the guide belt through the gap of the seed separating plate.

[0006] Furthermore, the seed supporting plate is in a U-shaped structure, so that the seed supporting plate can better transport seeds.

[0007] Furthermore, a U-shaped frame is provided at the bottom of the connecting piece, and two ends of the U-shaped frame respectively pass through the elongated holes of the bottom cover of the chain box and are connected to the cover.

[0008] Furthermore, an outer edge is provided on one side of the connecting piece, and a plurality of adjustment holes are evenly distributed on the outer edge. A lifting ear matching the adjustment hole is provided on the seed isolation plate. The adjusting piece passes through the lifting ear of the seed isolation plate and is inserted into the adjustment hole. The seed isolation plate is rotated according to the size of the seeds to adjust the size of the seed filling area, thereby adapting to the seeding of different seeds.

[0009] Furthermore, a notch is provided on the cover, and a brush is installed at the notch. The brush is located above the notch of the seed isolation plate. The brush has a certain hardness and is used to move the seeds to avoid clogging of the seeds.

[0010] Furthermore, the guide belt is evenly distributed with a number of through holes, and the through holes are located between the seed supporting plates. In order to prevent the guide belt from detaching from the driving wheel during transmission, a first conical tooth matching the through holes of the guide belt is provided on the outer wall of the driving wheel.

[0011] Furthermore, a positioning wheel is arranged in the middle of the bottom cover of the chain box, and a second conical tooth matching with the through hole of the guide belt is arranged on the outer wall of the positioning wheel. The positioning wheel can prevent the guide belt from slipping and avoid the occurrence of empty seeding.

[0012] Furthermore, an upper positioning plate and a lower positioning plate are provided on the top cover of the chain box, and the top cover of the chain box is buckled on the bottom cover of the chain box. The guide belt is supported by the upper positioning plate and the lower positioning plate, which can further prevent the guide belt from vibrating during transmission.

[0013] The present invention has a simple structure and a reasonable design. By combining two seed-feeding mechanisms, the number of seed spoons is increased, thereby reducing the rotation speed of the seed-feeding device, prolonging the service life of the seed-feeding device, making the machine work more stably and the seeding more accurate. Combining the two seed-feeding mechanisms can improve the seeding efficiency at a rotation speed that does not damage the seeds, thereby greatly improving the operation speed during seeding, the production efficiency and the use efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a stereogram of the present invention; Figure 2 It is a front view of the present invention; Figure 3 It is a right side view of the present invention; Figure 4 It is a schematic diagram of the decomposed structure of the present invention; Figure 5 It is a structural schematic diagram of the bottom cover of the chain box of the present invention; Figure 6 It is a structural schematic diagram of the chain box top cover of the present invention; Figure 7 It is a schematic diagram of the structure of the cover of the present invention; Figure 8 It is a schematic structural diagram of the conduction belt of the present invention; Fig. 9 It is a structural schematic diagram of the driving wheel of the present invention; Fig.10 It is a structural schematic diagram of the seed isolation plate of the present invention; Fig.11 It is a schematic structural diagram of the spoon wheel of the present invention; Fig.12 It is a structural schematic diagram of the positioning wheel of the present invention; Fig.13 It is a schematic structural diagram of a connecting piece of the present invention; Fig.14 It is a structural schematic diagram of one of the seeding mechanisms of the present invention without the cover and the chain box top cover. DETAILED DESCRIPTION

[0015] In order to better understand the purpose, function and specific design of the present invention, the bidirectional seed metering device of the present invention is further described in detail below in conjunction with the accompanying drawings.

[0016] like Figure 1-Figure 3 As shown, the bidirectional seeding device of the present invention includes two seeding mechanisms 1, which are symmetrically arranged on the left and right sides of the connecting piece 2 and are connected in series through a seeding shaft 3. One end of the seeding shaft 3 extends out of one of the seeding mechanisms 1 and is connected to a power transmission mechanism. The power transmission mechanism provides power for the two seeding mechanisms, driving the seeds to be discharged from the seeding port 01 at the bottom of the seeding mechanism 1.

[0017] The two seeding mechanisms 1 are tilted, and the seeding shaft 3 is driven to rotate through the power transmission mechanism, thereby driving the two seeding mechanisms 1 to seed synchronously. The power transmission mechanism of the present invention can adopt a gearbox, which is a well-known technology and will not be elaborated in detail.

[0018] The two seeding mechanisms 1 have the same structure. For the convenience of understanding and explanation, one of the seeding mechanisms 1 is taken as an example. Figure 4 , Figure 8 , Fig.10 and Fig.14As shown, the seeding mechanism 1 includes a chain box bottom cover 11 and a chain box top cover 12 buckled on the chain box bottom cover 11, the chain box bottom cover 11 is connected and fixed to the connecting member 2 by screws, a driving wheel 15 is installed on the upper part of the chain box bottom cover 11, a passive wheel 19 is installed on the lower part of the chain box bottom cover 11, and a guide belt 14 is sleeved on the driving wheel 15 and the passive wheel 19. The seeding shaft 3 is connected to the driving wheel 15, thereby driving the guide belt 14 to run, and a plurality of seed supporting plates 141 are evenly distributed on the outer wall of the guide belt 14. The outer side of 15 is provided with a seed isolation plate 16, a scoop wheel 17 and a cover 13 in sequence. The cover 13 is connected to the connecting piece 2. The cover 13 is provided with a seed discharge tube 131 connected to the seed box. The seed isolation plate 16 is located between the driving wheel 15 and the scoop wheel 17. When working, the seed isolation plate 16 is stationary, and the scoop wheel 17 rotates with the driving wheel 15. The seed taking scoop 171 of the scoop wheel 17 is used to move the seeds to run, and the seeds are sent to the seed supporting plate 141 of the guide belt 14 through the notch 161 of the seed isolation plate 16.

[0019] like Figure 8 As shown, the seed support plate 141 and the guide belt 14 are an integrated structure, and the guide belt 14 is a soft guide belt made of high temperature resistant, low temperature resistant and highly wear-resistant polyurethane material. The seed support plate 141 is a U-shaped structure, so that the seed support plate 141 can better transport seeds.

[0020] like Figure 4 , Figure 8 and Fig. 9 As shown, a plurality of through holes 142 are evenly distributed on the guide belt 14, and the through holes 142 are located between the seed supporting plates 141 and 141. In order to prevent the guide belt 14 from being separated from the driving wheel 15 during the transmission process, a first conical tooth 151 matching the through holes 142 of the guide belt 14 is provided on the outer wall of the driving wheel 15. During the transmission process of the guide belt 14, the first conical tooth 151 can be embedded in the through holes 142 of the guide belt 14.

[0021] like Figure 4 , Fig.12 and Fig.14 As shown, a positioning wheel 18 is provided in the middle of the chain box bottom cover 11, and a second conical tooth 181 matching the through hole of the guide belt 14 is provided on the outer wall of the positioning wheel 18. During the transmission process of the guide belt 14, the second conical tooth 151 of the guide belt 14 can be embedded in the through hole 142 of the guide belt 14. The positioning wheel 18 can prevent the guide belt 14 from slipping and avoid the occurrence of empty seeds.

[0022] like Figure 4 and Figure 6 As shown, an upper positioning plate 122 and a lower positioning plate 123 are provided on the chain box top cover 12, and the chain box top cover 12 is buckled on the chain box bottom cover 11. The guide belt 14 is supported by the upper positioning plate 122 and the lower positioning plate 123, which can further prevent the guide belt 14 from vibrating during the transmission process.

[0023] like Figure 4 , Figure 5 , Fig.13 and Fig.14 As shown, a U-shaped frame 22 is provided at the bottom of the connecting member 2 , and both ends of the U-shaped frame 22 pass through the elongated holes 112 of the chain box bottom cover 11 and are connected to the cover 13 .

[0024] like Figure 1 , Figure 4 , Fig.10 , Fig.13 and Fig.14 As shown, one side of the connecting member 2 is provided with an outer edge 21, and the outer edge 21 is evenly distributed with a plurality of adjustment holes 211, and the seed isolation plate 16 is provided with a hanging ear 162 that matches the adjustment hole 211, and the adjustment member 6 is inserted into the adjustment hole 211 through the hanging ear 162 of the seed isolation plate 16, and the seed isolation plate 16 is rotated according to the size of the seed to adjust the size of the seed filling area, thereby adapting to the seeding of different seeds. The other side of the connecting member 2 is provided with a connecting seat 23, and the present invention can be fixed on the seeder through the connecting seat 23.

[0025] like Figure 4 , Figure 6 and Figure 7 As shown, a notch is provided on the cover 13, and a brush 132 is installed at the notch. The brush 132 is located above the notch 161 of the seed isolation plate 16. The brush 132 has a certain hardness and is used to move the seeds to avoid seed blockage.

[0026] like Figure 3 and Fig.14 As shown, the driving wheels 15 of the two seeding mechanisms 1 of the present invention are connected via the seeding shaft 3 ; the driven wheels 19 of the two seeding mechanisms 1 are connected via the first pin shaft 4 ; and the positioning wheels 18 of the two seeding mechanisms 1 are connected via the second pin shaft 5 .

[0027] like Figure 1 , Figure 5 and Figure 6 As shown, a first notch 111 is provided at the lower end of the chain box bottom cover 11, a second notch 121 is provided at the lower end of the chain box top cover 12, the chain box top cover 12 is buckled on the chain box bottom cover 11, and a seed discharge port 01 is formed at the bottom.

[0028] like Figure 1 As shown, the cover 13 and the chain box top cover 12 of the present invention are both made of transparent materials.

[0029] When in use, the seed discharge tubes 131 of the two seed discharge mechanisms 1 are respectively connected to the seed boxes, and the seeds in the seed boxes enter through the seed discharge tubes. The seed taking spoon 171 of the spoon wheel 17 sends the seeds into the guide belt 14 through the gap 161 of the seed partition plate 16, and the seeds fall on the seed supporting plate 141 of the guide belt 14. Through the transmission of the guide belt 14, the seeds on the seed supporting plate 141 are sown into the ground.

[0030] The number of seeding spoons 171 in this embodiment is 28, which are distributed along the circumference of the spoon wheel 17, and the total number of seeding spoons 171 of the two seeding mechanisms 1 is 56. The spoon wheel inside the seeding mechanism 1 can be replaced with 18 teeth, 24 teeth, etc. according to the regional sowing requirements, and the present invention is not limited to this.

[0031] The present invention combines two seeding mechanisms to increase the number of seeding spoons 171, thereby reducing the rotation speed of the seeding device, increasing the service life of the seeding device, making the machine work more stable and the seeding more accurate. The combination of the two seeding mechanisms can improve the sowing efficiency at a rotation speed that does not damage the seeds, greatly improving the operation speed during sowing, production efficiency and use benefits.

[0032] 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. A bidirectional seed metering device, characterized in that: The utility model comprises two seeding mechanisms, which are symmetrically arranged on the left and right sides of the connecting piece and are connected in series through a seeding shaft. One end of the seeding shaft extends out of one of the seeding mechanisms and is connected to a power transmission mechanism. The power transmission mechanism provides power for the two seeding mechanisms to drive the seeds to be discharged from the seeding port at the bottom of the seeding mechanism.

2. The bidirectional seed metering device according to claim 1, characterized in that: The two seeding mechanisms are arranged obliquely, and the seeding shaft is driven to rotate by the power transmission mechanism, thereby driving the two seeding mechanisms to seed synchronously.

3. The bidirectional seed metering device according to claim 2, characterized in that: The seeding mechanism includes a chain box bottom cover and a chain box top cover buckled on the chain box bottom cover, a driving wheel is installed on the upper part of the chain box bottom cover, a passive wheel is installed on the lower part of the chain box bottom cover, the guide belt is sleeved on the driving wheel and the passive wheel, the seeding shaft is connected to the driving wheel, and then drives the guide belt to run, a number of seed supporting plates are evenly distributed on the outer wall of the guide belt, a seed separating plate, a scoop wheel and a cover are sequentially arranged on the outer side of the driving wheel, the cover is connected to the connecting piece, and a seeding tube connected to the seed box is arranged on the cover, the seed separating plate is located between the driving wheel and the scoop wheel, when working, the seed separating plate is stationary, the scoop wheel rotates with the driving wheel, and the seed taking spoon of the scoop wheel is used to move the seeds to run, and the seeds are sent to the seed supporting plate of the guide belt through the gap of the seed separating plate.

4. The bidirectional seed metering device according to claim 3, characterized in that: The seed supporting plate is in a U-shaped structure, so that the seed supporting plate can better transport seeds.

5. The bidirectional seed metering device according to claim 3, characterized in that: A U-shaped frame is arranged at the bottom of the connecting piece, and two ends of the U-shaped frame respectively pass through the oblong holes of the bottom cover of the chain box and are connected with the cover.

6. The bidirectional seed metering device according to claim 5, characterized in that: An outer edge is provided on one side of the connecting piece, and a plurality of adjustment holes are evenly distributed on the outer edge. A lifting ear matching the adjustment hole is provided on the seed isolation plate. The adjusting piece is inserted into the adjustment hole through the lifting ear of the seed isolation plate. The seed isolation plate is rotated according to the size of the seeds to adjust the size of the seed filling area, thereby adapting to the seeding of different seeds.

7. The bidirectional seed metering device according to claim 6, characterized in that: A notch is arranged on the cover, and a brush is installed at the notch. The brush is located above the notch of the seed separating plate. The brush has a certain hardness and is used to move the seeds to avoid clogging of the seeds.

8. The bidirectional seed metering device according to claim 3, characterized in that: The guide belt is evenly distributed with a number of through holes, which are located between the seed supporting plates. In order to prevent the guide belt from separating from the driving wheel during transmission, a first conical tooth matching the through holes of the guide belt is arranged on the outer wall of the driving wheel.

9. The bidirectional seed metering device according to claim 8, characterized in that: A positioning wheel is arranged in the middle of the bottom cover of the chain box, and a second conical tooth matching with the through hole of the guide belt is arranged on the outer wall of the positioning wheel. The positioning wheel can prevent the guide belt from slipping and avoid the occurrence of empty seeding.

10. The bidirectional seed metering device according to claim 9, characterized in that: An upper positioning plate and a lower positioning plate are arranged on the top cover of the chain box, and the top cover of the chain box is buckled on the bottom cover of the chain box. The guide belt is supported by the upper positioning plate and the lower positioning plate, which can further prevent the guide belt from vibrating during the transmission process.

Images