Seeding machine

Abstract

The utility model relates to the technical field of seeding, in particular to a seeding machine which comprises a rack, a storage unit is mounted on the rack, and the storage unit is used for storing crop seeds to be seeded; a material guide cylinder is fixedly mounted on the rack, communicated channels are formed in the upper end and the lower end of the material guide cylinder, and the upper portions of the channels are connected with the lower portions of the storage units; a seeding unit is mounted on the rack, and the lower part of the material guide barrel is connected with the seeding unit; during sowing, a tractor pulls the machine frame to move along a cultivated land sowing path, in the advancing process of the machine frame, the pressing depths of cultivated land are different according to different ground dead weights, seeds in the storage unit pass through the material guide barrel, and the U-shaped lifting plate ascends or descends along with different cultivation depth changes; the rotation amplitude of the discharging control rod is controlled through the transmission device, and the discharging speed of the seeds is adjusted after the discharging control rod rotates.

Description

Technical Field

[0001] The utility model relates to the technical field of sowing, in particular to a seeder. Background Art

[0002] The seeder can spread seeds evenly into the soil. It can automatically spread seeds evenly into the soil at a certain spacing and depth, thereby improving sowing efficiency and reducing labor intensity.

[0003] At present, when sowing, it is necessary to adjust the sowing density of the seeder according to different terrains, lighting conditions, etc. according to local climate and other environmental factors. Since the structure of the seeder is relatively fixed, the seeder needs to adjust the number of seeds according to the seeding depth during sowing. When the seed tillage depth is deep, the number of seeds needs to be reduced to avoid insufficient nutrients required for seed growth. However, existing seeders cannot adjust the number of sowing seeds according to the sowing depth. Growers need to observe the sowing depth in real time from time to time to control the speed of seed feeding. The operation is very cumbersome and affects the speed and progress of sowing. The seeder needs to be optimized in design. Utility Model Content

[0004] The utility model aims to provide a seeder which can control the number of seeds in real time according to the sowing depth of the seeder, so that the number of sown seeds can be adjusted in real time according to the sowing depth.

[0005] The utility model adopts the following technical scheme: a seeder comprises a frame, a storage unit is installed on the frame, and the storage unit is used to store crop seeds to be sown; a material guide cylinder is fixedly installed on the frame, and the upper and lower ends of the material guide cylinder are provided with communicating channels, and the upper part of the channel is connected to the lower part of the storage unit; a sowing unit is installed on the frame, and the lower part of the material guide cylinder is connected to the sowing unit; a speed regulating component for controlling the seed feeding speed is arranged inside the material guide cylinder, and the speed regulating component comprises a feeding control rod rotatably installed in the material guide cylinder; a lifting component is installed on the frame, and the lifting component comprises a U-shaped lifting plate slidably installed on the frame, and the U-shaped lifting plate controls the rotation of the feeding control rod through a transmission device.

[0006] A further solution of the utility model is that the lifting assembly also includes a connecting rod installed on the U-shaped lifting plate, a sliding hole is opened on the frame, the connecting rod slides up and down in the sliding hole, and an elastic part is mounted on the connecting rod, and the elastic part is located between the U-shaped lifting plate and the frame.

[0007] A further solution of the utility model is that the speed regulating assembly also includes a seed dropping hole arranged on the feeding control rod, the seed dropping hole is an oblong slot hole and is perpendicular to the axial direction of the feeding control rod, the feeding control rod is hollow, and a seed delivery rod is rotatably installed at the center of the feeding control rod, the seed delivery rod is located above the sowing unit and is provided with a cylindrical step platform, an inoculation groove is provided on the step platform, and the inoculation groove can be aligned with the seed dropping hole and the sowing unit during the rotation of the seed delivery rod, and a first transmission wheel is installed at the end of the seed delivery rod.

[0008] A further solution of the utility model is that the inoculation groove is in the shape of an arc groove with a deeper end and a smooth transition to the step platform on the seed delivery rod at the other end, and three groups of inoculation grooves are arranged on the step platform.

[0009] A further solution of the utility model is that the transmission device includes a rotating frame arranged on the frame, a soil covering wheel is rotatably mounted on the rotating frame, a second transmission wheel is mounted on the rotating shaft of the soil covering wheel, and the second transmission wheel is connected to the first transmission wheel through a first transmission member.

[0010] A further solution of the utility model is that a driving tooth plate is installed on the upper end of the connecting rod, a third gear is installed on the side of the unloading control rod that is biased towards the driving tooth plate, and the driving tooth plate is meshingly connected with the third gear.

[0011] A further solution of the utility model is that the storage unit is a seed storage box installed on the frame, and a through hole opened below the seed storage box can be connected to the seed dropping hole on the feeding control rod.

[0012] A further solution of the utility model is that the sowing unit is a plow foot installed on a frame, and a passage for seeds to pass through is arranged at the rear end of the plow foot.

[0013] Beneficial effects of the utility model:

[0014] During sowing, the tractor pulls the frame to move along the sowing path of the cultivated land. During the forward movement, the frame presses down the cultivated land to different depths due to different ground deadweights. The seeds in the storage unit pass through the guide barrel. For different changes in tillage depths, the U-shaped lifting plate rises or falls accordingly, and the rotation amplitude of the feeding control lever is controlled by the transmission device. After the feeding control lever is rotated, the seed feeding speed is adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the overall structure diagram of the utility model;

[0016] Figure 2 This is the second structural diagram of the utility model;

[0017] Figure 3 It is a partial cross-sectional structural diagram of the utility model;

[0018] Figure 4 This is an exploded structural diagram of the material feeding control rod of the utility model.

[0019] Figure numerals: 1, frame; 11, material guide cylinder; 12, sliding hole; 13, rotating frame; 14, soil covering wheel; 141, second transmission wheel; 15, first transmission member; 16, seed storage box; 17, harrow foot; 2, material discharge control rod; 21, seed drop hole; 22, seed delivery rod; 221, inoculation groove; 222, first transmission wheel; 23, third gear; 3, U-shaped lifting plate; 31, connecting rod; 32, elastic member; 33, driving gear plate. DETAILED DESCRIPTION

[0020] The present invention is described in detail below with reference to the accompanying drawings and embodiments:

[0021] Reference Figure 1-4 The utility model discloses a seed drill, comprising: a frame 1, a storage unit is installed on the frame 1, the storage unit is used to store the crop seeds to be sown, a guide cylinder 11 is fixedly installed on the frame 1, the upper and lower ends of the guide cylinder 11 are provided with communicating channels, and the upper part of the channel is connected to the lower part of the storage unit, a sowing unit is installed on the frame 1, the lower part of the guide cylinder 11 is connected to the sowing unit, a speed regulating component for controlling the seed feeding speed is arranged inside the guide cylinder 11, the speed regulating component includes a feeding control rod 2 rotatably installed in the guide cylinder 11, a lifting component is installed on the frame 1, the lifting component includes a U-shaped lifting plate 3 slidably installed on the frame 1, and the U-shaped lifting plate 3 controls the rotation of the feeding control rod 2 through a transmission device;

[0022] During sowing, the tractor pulls the frame 1 to move along the sowing path of the cultivated land. During the forward movement, the frame 1 presses down the cultivated land to different depths due to different ground deadweights. The seeds in the storage unit pass through the guide cylinder 11. For different changes in tillage depths, the U-shaped lifting plate 3 rises or falls accordingly, and the rotation amplitude of the feeding control rod 2 is controlled by the transmission device. After the feeding control rod 2 is rotated, the feeding speed of the seeds is adjusted, and the seeds are sown on the cultivated land through the sowing unit.

[0023] The lifting assembly further includes a connecting rod 31 mounted on the U-shaped lifting plate 3. The frame 1 is provided with a sliding hole 12. The connecting rod 31 slides up and down in the sliding hole 12. An elastic member 32 is sleeved on the connecting rod 31. The elastic member 32 is located between the U-shaped lifting plate 3 and the frame 1. It should be noted that the elastic member 32 is always in a compressed state.

[0024] In the initial state, the lower end of the U-shaped lifting plate 3 is flush with the lower end of the sowing unit. At this time, the feeding control rod 2 is located at the front limit position. After sowing begins, the sowing unit penetrates into the seed sowing depth of the cultivated land, and the U-shaped lifting plate 3 rises to be flush with the ground. The feeding control rod 2 is driven to rotate through the transmission device. The rotation of the feeding control rod 2 drives the size of the channel docking with the storage unit and the sowing unit, thereby adjusting the seed feeding speed according to the tillage depth during sowing, and controlling the number of seeds sown at different depths. The elastic member 32 is used to make the lower end surface of the U-shaped lifting plate 3 fit in contact with the ground, and the elastic member 32 is preferably a spring.

[0025] The speed regulating assembly also includes a seed drop hole 21 arranged on the feeding control rod 2. The seed drop hole 21 is an oblong slot hole and is perpendicular to the axial direction of the feeding control rod 2. The feeding control rod 2 is hollow, and a seed delivery rod 22 is rotatably installed at the center of the feeding control rod 2. The seed delivery rod 22 is located above the sowing unit and is provided with a cylindrical stepped platform. An inoculation groove 221 is provided on the stepped platform. The inoculation groove 221 can be aligned with the seed drop hole 21 and the sowing unit during the rotation of the seed delivery rod 22. It should be noted that the shape of the inoculation groove 221 is an arc groove with a deeper end and a smooth transition with the stepped platform on the seed delivery rod 22 at the other end. Three groups of inoculation grooves 221 are arranged on the stepped platform, and a first transmission wheel 222 is installed at the end of the seed delivery rod 22;

[0026] When sowing, the sowing unit drives the first transmission wheel 222 to rotate, and the rotation of the first transmission wheel 222 drives the seed feeding rod 22 to rotate. The seeds in the storage unit fall downward along the docking channel under the action of gravity, and the U-shaped lifting plate 3 rotates to drive the unloading control rod 2 to remove the seeds, thereby adjusting the size of the opening of the seed drop hole 21, thereby controlling the number of seeds falling per unit time, and then controlling the number of seeds sown at different depths.

[0027] The transmission device includes a rotating frame 13 arranged on the frame 1, and a covering wheel 14 is rotatably installed on the rotating frame 13. A second transmission wheel 141 is installed on the rotating shaft of the covering wheel 14. The second transmission wheel 141 is connected to the first transmission wheel 222 through the first transmission member 15. It should be noted that the structure of the first transmission wheel 222, the second transmission wheel 141 and the first transmission member 15 can be a sprocket chain structure, or a pulley belt structure, etc. In this scheme, it is preferably a pulley belt structure. The covering wheel 14 rotates in contact with the ground of the cultivated land when the seeder is sowing, and the first transmission wheel 222 is driven to rotate through the second transmission wheel 141 and the first transmission member 15, thereby driving the seeds fallen into the inoculation groove 221 to continuously fall into the sowing unit, and then the seeds are sown in the cultivated land at a set depth.

[0028] A driving tooth plate 33 is installed at the upper end of the connecting rod 31, and a third gear 23 is installed on the side of the unloading control rod 2 that is biased towards the driving tooth plate 33. The driving tooth plate 33 is meshed and connected with the third gear 23. The U-shaped lifting plate 3 rises or descends under the action of the elastic member 32, driving the unloading control rod 2 to rotate and controlling the speed at which the seeds fall.

[0029] The storage unit is a seed storage box 16 installed on the frame 1, and the through hole opened below the seed storage box 16 can be connected with the seed drop hole 21 on the feeding control rod 2. The sowing unit is a plow foot 17 installed on the frame 1, and a channel for seeds to pass through is provided at the rear end of the plow foot 17. The channel for seeds to pass through on the plow foot 17 is connected to the channel outlet at the lower end of the seed drop hole 21 on the feeding control rod 2 through a connecting pipe.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] The above description is only for illustrating the present invention, and it should be understood that the present invention is not limited to the above embodiments, and various variations that conform to the concept of the present invention are within the protection scope of the present invention.

Claims

1. A seed drill, Features: The invention comprises a frame (1), on which a storage unit is mounted, and the storage unit is used to store crop seeds to be sown; a material guide cylinder (11) is fixedly mounted on the frame (1), and a communicating channel is provided at the upper and lower ends of the material guide cylinder (11), and the upper part of the channel is connected to the lower part of the storage unit; a sowing unit is mounted on the frame (1), and the lower part of the material guide cylinder (11) is connected to the sowing unit; a speed regulating component for controlling the seed feeding speed is arranged inside the material guide cylinder (11), and the speed regulating component comprises a feeding control rod (2) rotatably mounted inside the material guide cylinder (11); a lifting component is mounted on the frame (1), and the lifting component comprises a U-shaped lifting plate (3) slidably mounted on the frame (1), and the U-shaped lifting plate (3) controls the rotation of the feeding control rod (2) through a transmission device.

2. The seed drill according to claim 1, Features: The lifting assembly further comprises a connecting rod (31) mounted on the U-shaped lifting plate (3); a sliding hole (12) is provided on the frame (1); the connecting rod (31) slides up and down in the sliding hole (12); an elastic member (32) is sleeved on the connecting rod (31); the elastic member (32) is located between the U-shaped lifting plate (3) and the frame (1).

3. The seed drill according to claim 2, Features: The speed regulating assembly further comprises a seed dropping hole (21) arranged on the feeding control rod (2); the seed dropping hole (21) is an oblong slot hole and is perpendicular to the axial direction of the feeding control rod (2); the feeding control rod (2) is hollow; a seed delivery rod (22) is rotatably mounted at the center of the feeding control rod (2); the seed delivery rod (22) is provided with a cylindrical stepped platform above the sowing unit; an inoculation groove (221) is provided on the stepped platform; the inoculation groove (221) can be aligned with the seed dropping hole (21) and the sowing unit during the rotation of the seed delivery rod (22); a first transmission wheel (222) is mounted at the end of the seed delivery rod (22).

4. The seed drill according to claim 3, Features: The inoculation groove (221) is in the shape of an arc-shaped groove with a deeper end and a smooth transition to the stepped platform on the seed delivery rod (22) at the other end. Three groups of inoculation grooves (221) are arranged on the stepped platform.

5. The seed drill according to claim 3, Features: The transmission device comprises a rotating frame (13) arranged on a frame (1), a soil covering wheel (14) being rotatably mounted on the rotating frame (13), a second transmission wheel (141) being mounted on a rotating shaft of the soil covering wheel (14), and the second transmission wheel (141) being connected to the first transmission wheel (222) via a first transmission member (15).

6. The seed drill according to claim 2, Features: A driving toothed plate (33) is mounted on the upper end of the connecting rod (31), a third gear (23) is mounted on a side of the unloading control rod (2) that is biased toward the driving toothed plate (33), and the driving toothed plate (33) is meshingly connected with the third gear (23).

7. The seed drill according to claim 3, Features: The storage unit is a seed storage box (16) mounted on the frame (1), and a through hole provided below the seed storage box (16) can be communicated with a seed drop hole (21) on a feed control rod (2).

8. The seed drill according to claim 1, Features: The sowing unit is a hoe foot (17) mounted on the frame (1), and a passage for seeds to pass through is provided at the rear end of the hoe foot (17).

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