A hole seeding device

Abstract

The hole-seeding seed metering device of the present invention comprises a shell, a seeding shaft and a seeding unit. The seeding unit is arranged at the discharge port of the shell, and comprises: a seeding wheel, an adjusting disk and at least one plug body. The seeding wheel is driven to rotate by the seeding shaft. The seeding wheel is provided with seeding holes arranged radially corresponding to the number of the plug bodies. The adjusting disk can be rotatably connected to the seeding wheel by bolts relative to the seeding wheel. The adjusting disk is provided with guide grooves corresponding to the number of the plug bodies. The plug body is composed of a piston part and a driving part. The piston part of the plug body can be slidably arranged in the seeding hole. The driving part of the plug body extends out of the end face of the seeding wheel and passes through the guide groove, and guides the sliding of the plug body in the seeding hole under the constraint of the guide groove. Beneficial effect: The single sowing amount of the hole-seeding seed metering device can be accurately adjusted, and the overall adjustment of the single-row sowing amount of each row can be achieved, which is conducive to the balanced growth of crops.

Description

Technical Field

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

[0002] The seeders currently used in field production, especially the hole-seeding seeders, cannot achieve precise adjustment of the single sowing amount, nor can they make overall adjustment of the sowing amount of each row. Traditionally, operators manually adjust the sowing amount based on their experience, which inevitably causes errors and is not conducive to the balanced growth of crops. Summary of the invention

[0003] The present invention aims to overcome the deficiencies of the prior art and provides a hole-seeding seed metering device, which is specifically implemented by the following technical solutions:

[0004] The hole-seeding seed metering device comprises a shell, a seeding shaft and a seeding unit. The seeding unit is arranged at the discharge port of the shell and comprises: a seeding wheel, an adjusting disk and at least one plug body. The seeding wheel is driven to rotate by the seeding shaft. The seeding wheel is provided with seeding holes arranged radially corresponding to the number of the plug bodies. The adjusting disk can be rotatably connected to the seeding wheel relative to the seeding wheel by bolts. The adjusting disk is provided with guide grooves corresponding to the number of the plug bodies. The plug body is composed of a piston part and a driving part. The piston part of the plug body can be slidably arranged in the seeding hole. The driving part of the plug body extends out of the end face of the seeding wheel and passes through the guide groove, and guides the sliding of the plug body in the seeding hole under the constraint of the guide groove.

[0005] A further design of the hole-seeding and metering device is that the regulating disk is a disk with a circular hole in the center and teeth on the outer circumference.

[0006] A further design of the hole-seeding seed metering device is that an adjusting groove is further provided on the adjusting disk, the adjusting groove is provided with a scale for indicating the depth of the hole-seeding hole, and the adjusting groove is fixed by screwing bolts.

[0007] A further design of the hole-seeding seed metering device is that the seed metering shaft is a regular polygonal rotating shaft, which is hollowly sleeved in the circular hole of the adjusting disk.

[0008] A further design of the hole-seeding seed metering device is that one end face of the seed metering wheel is provided with a transmission hole matched with the regular polygonal rotating shaft, and the other end face is provided with an inner cavity matched with the plug body and a threaded hole for screwing a bolt.

[0009] A further design of the hole-seeding seed metering device is that the piston portion of the plug body is a cylinder that is compatible with the seeding hole, and the driving portion of the plug body is a rectangular cylinder. A slot is provided at the front end of the rectangular cylinder, and the front end of the cylinder passes through the guide groove and an elastic retaining ring is arranged in the slot to axially limit the plug body, thereby enhancing the restraint accuracy and effect of the guide groove on the plug body.

[0010] A further design of the hole-seeding seed metering device is that the piston part and the driving part of the plug body are arc surfaces that are non-contact with the seed metering shaft compared to one side of the seed metering shaft.

[0011] A further design of the hole-seeding seed metering device is that the guide groove is an eccentric arc groove arranged on the adjusting disk compared to the center of the adjusting disk.

[0012] The advantages of the present invention are as follows:

[0013] The single sowing amount of the hole-seeding seed metering device of the present invention can be precisely adjusted, and the overall adjustment of the sowing amount of the hole-seeding seed metering device in each row can be achieved by adjusting the adjustment disk with scales, which is beneficial to the balanced growth of crops. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the hole-seeding seed meter.

[0015] Figure 2 for Figure 1 A side schematic diagram of the hole-seeding seed meter is shown.

[0016] Figure 3 It is a structural schematic diagram of the seeding unit.

[0017] Figure 4 It is a schematic diagram of the structure of the seeding unit (excluding the seeding wheel).

[0018] Figure 5 for Figure 4 The schematic diagram of the structure of the seeding unit shown is in the direction of A.

[0019] Figure 6 It is a schematic diagram of the end face of one side of the seed wheel.

[0020] Figure 7 It is a schematic diagram of the other side end face of the seed wheel. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings.

[0022] like Figure 1 , Figure 2The hole seeding device of this embodiment is mainly composed of a housing 1, a seeding shaft 2 and a seeding unit 3. The seeding unit is arranged at the discharge port of the housing 1, and the seeds fall into the housing from the seed bin, and then are discharged from the discharge port through the seeding unit 3 to complete the seeding operation. Figure 3 , Figure 4 The seeding unit 3 is mainly composed of a seeding wheel 31, an adjustment disk 32 and three plugs 33. The number of plugs can be adjusted according to the actual planting environment, which is a common technical means for those skilled in the art and will not be described here. The seeding wheel 31 is driven to rotate by the seeding shaft 2. The seeding wheel 31 is provided with three seeding holes 311 arranged radially.

[0023] like Figure 5 The adjusting disk 32 is rotatably connected to the seeding wheel 31 by bolts 312. Specifically, three guide grooves 321 are provided on the adjusting disk 32. The plug body 33 is composed of a piston part 331 and a driving part 332. The piston part 331 of the plug body 33 is slidably arranged in the seeding hole 311. The driving part 332 of the plug body 33 extends out of the end surface of the seeding wheel 31 and passes through the guide groove 321. Under the constraint of the guide groove 321, the plug body 33 is guided to slide in the seeding hole 311.

[0024] like Figure 5 The adjusting disk 32 of this embodiment is a disk with a circular hole 323 in the center and teeth 424 on the outer periphery. The adjusting disk 32 is also provided with an adjusting groove 321, and the adjusting groove 321 is provided with a scale for indicating the depth of the hole sowing hole. In the actual adjustment operation process, it is only necessary to adjust the adjusting disk 32 until the hole sowing hole reaches the set depth, and then fix the adjusting groove 321 by screwing the bolt 312. It is also possible to achieve unified adjustment of several hole sowing seeding devices driven by the same seeding shaft 2 by adjusting the scale of the groove 321, which not only improves the adjustment efficiency of the operator, but also ensures the accuracy of the sowing amount.

[0025] The seeding shaft 2 of this embodiment is a regular polygonal rotating shaft 2 (a regular hexagonal transmission shaft in this embodiment), see Figure 1 , Figure 3 as well as Figure 4 The regular polygonal rotating shaft 2 is hollowly sleeved in the circular hole 323 of the adjusting disk 32 .

[0026] like Figure 6 A transmission hole 313 matching the regular polygonal rotating shaft is provided on one end face of the seeding wheel. Figure 7 The other end surface of the seed wheel is provided with an inner cavity 315 matched with the plug body 33 and a threaded hole 314 for screwing a bolt.

[0027] like Figure 4The piston part 331 of the plug column 33 is a column 331 adapted to the seeding hole 311. The driving part 332 of the plug column 33 is a rectangular column 332, and a slot (not shown in the figure) is provided at the front end of the rectangular column 332. The front end of the rectangular column 332 passes through the guide groove 321 and an elastic retaining ring 3121 is provided in the slot to axially limit the plug column 33, thereby enhancing the accuracy and effect of the guide groove 321 on the plug column 33.

[0028] like Figure 7 The piston part 331 and the driving part 332 of the plug body 33 are arc surfaces that are non-contact with the seeding shaft compared to the seeding shaft 2, avoiding the edges and corners of the seeding shaft 2 (this embodiment is a regular hexagonal transmission shaft) to avoid interference with the seeding shaft 2.

[0029] The guide groove 321 is an eccentric arc groove 321 arranged on the adjustment disk compared to the center (circular hole 323) of the adjustment disk, and can also be set as a straight groove. This is a common choice for those skilled in the art and will not be described in detail here.

[0030] The single sowing amount of the hole-seeding and metering device of this embodiment can be precisely adjusted, and the overall adjustment of the sowing amount of the hole-seeding and metering device in each row can be achieved by adjusting the adjustment disk with scales, which is beneficial to the balanced growth of crops.

[0031] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A hole seeding device, characterized in that The invention comprises a shell, a seeding shaft and a seeding unit, wherein the seeding unit is arranged at the discharge port of the shell and comprises: a seeding wheel, an adjusting disk and at least one plugging cylinder, wherein the seeding wheel is driven to rotate by the seeding shaft, the seeding wheel is provided with seeding holes arranged radially corresponding to the number of the plugging cylinders, the adjusting disk is rotatably connected to the seeding wheel relative to the seeding wheel by bolts, the adjusting disk is provided with guide grooves corresponding to the number of the plugging cylinders, the plugging cylinder is composed of a piston part connected with a driving part, the piston part of the plugging cylinder is slidably arranged in the seeding hole, the driving part of the plugging cylinder extends out of the end face of the seeding wheel and passes through the guide groove, and guides the sliding of the plugging cylinder in the seeding hole under the constraint of the guide groove.

2. The hole seeding device according to claim 1, characterized in that The regulating disk is a disk with a circular hole in the center and teeth on the outer circumference.

3. The hole seeding device according to claim 2, characterized in that The adjusting disk is also provided with an adjusting groove, the adjusting groove is provided with a scale for indicating the depth of the seeding hole, and the adjusting groove is fixed by screwing bolts.

4. The hole seeding device according to claim 3, characterized in that The seed discharging shaft is a regular polygonal rotating shaft, which is hollowly sleeved in the circular hole of the adjusting disk.

5. The hole seeding device according to claim 4, characterized in that One end surface of the seed wheel is provided with a transmission hole matched with the regular polygonal rotating shaft, and the other end surface is provided with an inner cavity matched with the plug body and a threaded hole for screwing a bolt.

6. The hole seeding device according to claim 1, characterized in that The piston part of the plug body is a column adapted to the seeding hole, and the driving part of the plug body is a rectangular column. A slot is provided at the front end of the rectangular column, and the front end of the cylinder passes through the guide groove and an elastic retaining ring is arranged in the slot to limit the axial position of the plug body, thereby enhancing the restraint accuracy and effect of the guide groove on the plug body.

7. The hole seeding device according to claim 6, characterized in that The piston part and the driving part of the plug body are arc surfaces which are not in contact with the seed discharging shaft compared with the seed discharging shaft.

8. The hole seeding device according to claim 1, characterized in that The guide groove is an eccentric arc groove arranged on the adjusting disk compared to the center of the adjusting disk.

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