Crop sowing mechanism and automatic sowing machine

Abstract

The utility model belongs to the field of agricultural machinery, and discloses a crop seeding mechanism and an automatic seeder, the crop seeding mechanism comprises a blanking shell, the interior of the blanking shell is provided with a blanking shell chamber extending along the vertical direction, the blanking shell chamber is internally and rotatably provided with a cylindrical placing disc through a driving mechanism, and the circumferential surface of the cylindrical placing disc is in clearance fit with the side wall of the blanking shell chamber; a plurality of containing grooves are formed in the circumferential face of the cylindrical containing disc, and a discharging shell cavity inclined plate is arranged in the discharging shell cavity. The discharging nozzle is movably arranged below the discharging shell in the vertical direction, and a discharging nozzle cavity extending in the vertical direction is formed in the discharging nozzle; materials are placed in the containing groove, the cylindrical containing disc is driven by the driving mechanism to rotate and fall into the discharging nozzle cavity through the discharging channel, meanwhile, the driving mechanism also drives the soil breaking nozzle to rotate relative to the discharging nozzle so as to dig pits, the discharging nozzle cavity is opened, and the soil breaking nozzle is driven by the driving mechanism to dig the pits. Therefore, the materials entering the cavity of the discharging nozzle fall into a pit.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery, specifically relating to a crop sowing mechanism and an automatic seeder. Background Technology

[0002] In the current environment of the rapid development of agricultural machinery, large-scale agricultural machinery used for large-scale planting of cash crops has become relatively mature and complete. However, there is still a need for family plantations and small- and medium-sized industrialized sowing between large machinery and manual agricultural tools.

[0003] Under the current conditions of small and medium-scale planting in my country, combine harvesters are expensive and have great limitations in use, while manual seeders have low sowing efficiency and relatively high labor intensity.

[0004] The current method of small seeders is to drive the seeds directly through pipes to the planting position after furrowing. To achieve precise control of the sowing spacing, the requirements for the precision of the motor and transmission parts are high, which is not conducive to automated control. The pipes themselves do not have the ability to break the soil and rely heavily on the furrowing mechanism. After long-term use, the sowing depth becomes unstable and it is easy to cause soil erosion. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a crop sowing mechanism and an automatic seeder. The sowing nozzle breaks the soil during the seeder's operation, and through the opening of the sowing nozzle and the feeding nozzle, a planting pit is formed, into which seeds fall directly—a pit-digging method. Furthermore, a drive mechanism enables the sowing nozzle to reciprocate up and down, controlling the opening and closing frequency of the nozzle and feeding nozzle. This results in precise control of the sowing amount and a low failure rate. Using pit-digging instead of furrow sowing increases rainwater infiltration and reduces soil erosion.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A crop planting apparatus, comprising,

[0008] The material feeding shell has a material feeding shell chamber extending vertically inside. A cylindrical placement disk is rotatably arranged in the material feeding shell chamber by a driving mechanism. The circumferential surface of the cylindrical placement disk is clearance-fitted with the side wall of the material feeding shell chamber. The circumferential surface of the cylindrical placement disk has multiple placement grooves. A material feeding shell chamber inclined plate is arranged in the material feeding shell chamber.

[0009] The feeding nozzle is vertically movable below the feeding shell, and there is a gap between the feeding nozzle and the feeding shell. The nozzle has a feeding nozzle chamber extending vertically inside, and both the feeding shell chamber and the feeding nozzle chamber are open.

[0010] The soil-breaking nozzle is rotatably connected to the side wall of the feeding nozzle to realize the opening and closing of the soil-breaking nozzle and the feeding nozzle. The direction of rotation of the soil-breaking nozzle facing away from the feeding nozzle is taken as the opening direction. The soil-breaking nozzle digs a pit in the ground along the opening direction.

[0011] The material feeding shell is provided with a driving assembly. The driving assembly is hinged to the material feeding nozzle through two second connecting rods. The material feeding shell is hinged to the soil breaking nozzle through a first connecting rod. The material feeding shell is hinged to the material feeding nozzle through a third connecting rod. The third connecting rod and the first connecting rod are respectively installed on two opposite side walls of the material feeding nozzle.

[0012] When the cylindrical placement disc is rotated to the predetermined position by the drive mechanism, and any one of its placement slots corresponds to the inclined plate of the discharge shell chamber, the placement slot, the discharge chamber, and one side of the inclined plate of the discharge shell chamber form a discharge channel. At the same time, the drive mechanism drives the soil breaking nozzle and the discharge nozzle to open, and the discharge channel is connected to the discharge nozzle chamber.

[0013] Preferably, the seeding mechanism further includes,

[0014] A hopper is installed on the upper surface of a discharge shell and has a hopper chamber extending vertically inside it. The hopper chamber is open on its upper and lower surfaces, and its lower surface opens into the discharge shell chamber.

[0015] The lower surface of the hopper chamber has a constricted opening. When the drive mechanism drives the cylindrical placement disk to rotate to a predetermined position, the opening is connected to one of the placement slots on the cylindrical placement disk.

[0016] Preferably, the drive assembly includes a seeding motor and a seeding drive shaft. The seeding motor is fixedly installed on the side wall of the discharge shell, and the seeding drive shaft is rotatably connected inside the discharge shell chamber. A cylindrical placement disc is sleeved on the seeding drive shaft.

[0017] Preferably, the drive assembly further includes a seeding gear, both ends of the seeding drive shaft pass through and extend out of the feed housing, the seeding gear is mounted on the outer wall of the feed housing, and the free end of the seeding motor is coupled to the seeding gear.

[0018] A gear protrusion is installed on the end face of the seeding gear, and a feeding nozzle mounting component is provided on the side wall of the feeding nozzle. One side of the second connecting rod is rotatably connected to the mounting protrusion and the feeding nozzle mounting component at both ends, respectively.

[0019] An auxiliary rotating shaft is rotatably installed in the material discharge chamber and one end of the shaft extends out of the chamber. A first auxiliary gear is sleeved on the auxiliary rotating shaft located outside the material discharge chamber. The first auxiliary gear and the seeding gear are located on two opposite outer walls of the material discharge chamber. A second auxiliary gear is installed on the seeding drive shaft extending out of the other side wall of the material discharge chamber. The first auxiliary gear meshes with the second auxiliary gear. A crank arm is provided on the first auxiliary gear. The two ends of the other second connecting rod are rotatably connected to the material discharge nozzle and the crank arm, respectively.

[0020] A material feeding shell fixing ring is provided on one side wall of the material feeding shell. One end of the first connecting rod is slidably connected to the material feeding shell fixing ring, and the other end of the first connecting rod is rotatably connected to the soil breaking nozzle.

[0021] A second material feeding shell fixing ring is provided on the other side wall of the material feeding shell, and the first and second material feeding shell fixing rings are installed on two opposite side walls of the material feeding shell. One end of the third connecting rod is slidably connected to the first material feeding shell fixing ring, and the other end of the third connecting rod is rotatably connected to the material feeding nozzle.

[0022] Furthermore, a transmission gear is fitted on the free end of the sowing motor, and the transmission gear is coupled with the sowing gear. The first connecting rod has a first connecting rod waist-shaped hole along its own length direction, and the first connecting rod slides in the material shell fixing ring one through the first connecting rod waist-shaped hole. The third connecting rod has a second connecting rod waist-shaped hole along its own length direction, and the third connecting rod slides in the material shell fixing ring two through the second connecting rod waist-shaped hole.

[0023] Preferably, the soil breaking nozzle and the material feeding nozzle are provided with torsion springs, and one end of the torsion spring abuts against the side wall of the soil breaking nozzle, and the other end of the torsion spring abuts against the side wall of the material feeding nozzle.

[0024] An automatic seeder includes the seeding mechanism described above, and also includes a frame with wheels, a soil-breaking mechanism, and a soil-sealing mechanism.

[0025] The seeder is configured with the process of breaking the soil, sowing, and sealing the soil as the sowing direction, and the soil breaking mechanism, sowing mechanism, and sealing mechanism are respectively installed on the frame along the sowing direction.

[0026] Preferably, the soil-breaking mechanism includes a soil-breaking mounting frame and a rotary tillage harrow. The frame extends along the sowing direction and forms a frame notch. The soil-breaking mounting frame is fixedly installed on the frame notch, and the rotary tillage harrow is rotatably installed on the soil-breaking mounting frame.

[0027] Preferably, a column is provided on the notch of the frame, the column extends along the vertical direction, and one end of the ground-breaking installation frame is installed obliquely on the frame through the column.

[0028] Preferably, the column is provided with a plurality of screw holes along the vertical direction, and the ground-breaking mounting frame is installed in the screw holes by bolts. The ground-breaking mounting frame is also installed at the notch of the frame by connecting bolts.

[0029] Preferably, the sealing mechanism includes a sealing motor, a rotating column, and soil-pulling blades. The sealing motor is fixedly installed on the frame, the rotating column is rotatably installed on the frame in a vertical direction, and the sealing motor is coupled to the end of the rotating column. There are multiple soil-pulling blades, and the multiple soil-pulling blades are respectively fixed on the lower end of the circumference of the rotating column.

[0030] Preferably, the soil sealing mechanism further includes a soil pressing wheel, the soil pressing connector is installed on the frame, and the soil pressing wheel is rotatably installed at the bottom end of the soil pressing connector and in contact with the ground.

[0031] Compared with the prior art, the beneficial effects of this utility model are:

[0032] 1. The material feeding shell of this utility model has a vertically extending material feeding shell chamber inside. A cylindrical placement plate is rotatably arranged inside the material feeding shell chamber through a driving mechanism, and the circumference of the cylindrical placement plate is in clearance fit with the side wall of the material feeding shell chamber. The circumference of the cylindrical placement plate has multiple placement grooves. A material feeding shell chamber inclined plate is arranged inside the material feeding shell chamber. The material feeding nozzle is movably arranged below the material feeding shell in a vertical direction, and there is a gap between the material feeding nozzle and the material feeding shell. The nozzle has a vertically extending material feeding nozzle chamber inside, and both the material feeding shell chamber and the material feeding nozzle chamber are open. The soil breaking nozzle is rotatably connected to the side wall of the material feeding nozzle to realize the opening and closing of the soil breaking nozzle and the material feeding nozzle. The direction of rotation of the soil breaking nozzle facing away from the material feeding nozzle is the opening direction. The soil breaking nozzle digs a pit in the ground in the opening direction. The material feeding shell is provided with a driving assembly. The driving assembly is hinged to the material feeding nozzle through two second connecting rods. The material feeding shell is hinged to the soil breaking nozzle through a first connecting rod. The material feeding shell is hinged to the soil breaking nozzle through a third connecting rod. The rod is hinged to the feeding nozzle, and the third connecting rod and the first connecting rod are respectively installed on the two opposite side walls of the feeding nozzle. When the cylindrical placement plate is rotated to the predetermined position by the drive mechanism, any one of its placement slots corresponds to the inclined plate of the feeding shell chamber. At this time, the placement slot, the feeding chamber, and one side of the inclined plate of the feeding shell chamber form a feeding channel. At the same time, the drive mechanism drives the soil breaking nozzle and the feeding nozzle to open. At this time, the feeding channel is connected to the feeding nozzle chamber. The purpose is to place the material in the placement slot, and the cylindrical placement plate is rotated by the drive mechanism and falls into the feeding nozzle chamber through the feeding channel. At the same time, the drive mechanism also drives the soil breaking nozzle to rotate relative to the feeding nozzle to dig a hole, thereby opening the feeding nozzle chamber and allowing the material entering the feeding nozzle chamber to fall into the hole. This achieves the opening and closing frequency of the soil breaking nozzle and the feeding nozzle, which accurately controls the seeding amount and has a low failure rate. The seeding method of digging holes instead of digging furrows increases the rainwater infiltration rate and reduces soil erosion.

[0033] 2. The hopper in this utility model is installed on the upper surface of the discharge shell. It has a hopper chamber extending vertically inside, open on its upper and lower surfaces, with the lower surface opening into the discharge shell chamber. The lower surface of the hopper chamber has a constricted opening. When the drive mechanism drives the cylindrical placement disc to a predetermined position, the opening connects to one of the placement slots on the cylindrical placement disc. The purpose is to ensure that after the material is placed in the hopper chamber, it enters one of the placement slots in the cylindrical placement disc through the constricted opening on the lower surface of the hopper, accurately falling into that slot. Then, the drive mechanism drives the cylindrical placement disc to rotate and drop it into the discharge nozzle chamber through the discharge channel. Simultaneously, the drive mechanism also drives the soil-breaking nozzle to rotate relative to the discharge nozzle to dig a pit, opening the discharge nozzle chamber and allowing the material entering the discharge nozzle chamber to fall into the pit.

[0034] 3. Because the driving component in this utility model includes a seeding motor and a seeding drive shaft, the seeding motor is fixedly installed on the side wall of the discharge shell, and the discharge shell cavity is rotatably connected to the seeding drive shaft. The cylindrical placement disc is sleeved on the seeding drive shaft. The purpose is to start the seeding motor, and its free end rotates, thereby driving the rotation of the seeding drive shaft. As a result, the cylindrical placement disc rotates with the rotation of the seeding drive shaft, and then the several placement slots are respectively matched with the hopper cavity and the discharge channel. Under the drive of the seeding motor, the material in the hopper cavity enters the placement slot, and with the rotation of the seeding motor, the material in the placement slot falls into the discharge nozzle cavity through the discharge channel.

[0035] 4. Because the drive assembly in this utility model also includes a seeding gear, both ends of the seeding drive shaft pass through and extend out of the feed housing, the seeding gear is installed on the outer wall of the feed housing, and the free end of the seeding motor is coupled to the seeding gear; a gear protrusion is installed on the end face of the seeding gear, and a feed nozzle mounting part is provided on the side wall of the feed nozzle, and one side of the second connecting rod is rotatably connected to the mounting protrusion and the feed nozzle mounting part respectively; an auxiliary rotating shaft is rotatably installed in the feed housing cavity and one end of it extends out of the feed housing cavity, and a first auxiliary gear is sleeved on the auxiliary rotating shaft located outside the feed housing cavity, the first auxiliary gear and the seeding gear are located on two opposite outer walls of the feed housing, and a second auxiliary gear is installed on the seeding drive shaft extending out of the other side wall of the feed housing, the first auxiliary gear meshes with the second auxiliary gear, and a crank arm is provided on the first auxiliary gear, and the two ends of the other second connecting rod are rotatably connected to the feed nozzle and the crank arm respectively; a feed housing fixing ring is provided on one side wall of the feed housing, and one end of the first connecting rod is connected to the feed housing fixing ring. A sliding connection is made, with the other end of the first connecting rod rotatably connected to the soil-breaking nozzle; a second fixing ring for the material discharge shell is set on the other side wall of the material discharge shell, and the first and second fixing rings are installed on the two opposite side walls of the material discharge shell; one end of the third connecting rod is slidably connected to the first fixing ring, and the other end is rotatably connected to the material discharge nozzle; the purpose is that after the seeding motor is started, its free end rotates, thereby driving the transmission gear to rotate, thereby driving the seeding gear to rotate, and then driving the gear protrusion to rotate, which in turn drives one of the second connecting rods to swing. At the same time, the rotation of the seeding gear also drives the rotation of the seeding transmission shaft, which in turn drives the rotation of the first auxiliary gear, thereby driving the rotation of the crank arm, and then driving the swing of the other second connecting rod; at the same time, the swing of the two second connecting rods causes the material discharge nozzle to deflect relative to the material discharge shell, which in turn drives the first connecting rod to slide on the first fixing ring and the third connecting rod to slide on the second fixing ring, ultimately causing the material discharge nozzle and the soil-breaking nozzle to open and close, so as to realize soil breaking and material discharge.

[0036] 5. Because the automatic seeder of this utility model includes the above-mentioned sowing mechanism, it also includes a frame with wheels, a soil breaking mechanism, and a soil sealing mechanism; the seeder is set up with the process of soil breaking, sowing, and soil sealing as the sowing direction, and the soil breaking mechanism, sowing mechanism, and soil sealing mechanism are respectively installed on the frame along the sowing direction; the purpose is to first use the soil breaking mechanism to break the soil, then use the sowing mechanism to dig holes and put in the material, and then use the soil sealing mechanism to cover the material with soil and compact it, so as to realize the automatic planting operation of the entire planting process. Attached Figure Description

[0037] Figure 1 This is a structural schematic diagram of the present invention in Embodiment 1;

[0038] Figure 2This is a schematic diagram of the structure of the present invention in Embodiment 1 when the torsion spring is connected to the soil breaking nozzle and the material feeding nozzle;

[0039] Figure 3 This is a rear view of the present invention in Embodiment 1;

[0040] Figure 4 This is a structural schematic diagram of the present invention from another perspective in Embodiment 1;

[0041] Figure 5 This is a structural schematic diagram of the present invention from a third-person perspective in Embodiment 1;

[0042] Figure 6 This is a cross-sectional view of the present invention in Embodiment 1;

[0043] Figure 7 This is a schematic diagram of the structure of the present invention in Embodiment 2;

[0044] Figure 8 This is a schematic diagram of the soil loosening mechanism on the frame in Embodiment 2 of this utility model;

[0045] Figure 9 This is a schematic diagram of the soil-removing mechanism on the frame in Embodiment 2 of this utility model;

[0046] Figure 10 This is a schematic diagram of the structure of the soil-pressing wheel on the frame in Embodiment 2 of this utility model;

[0047] Figure 11 This is the control flowchart of this utility model in Embodiment 2.

[0048] In the diagram: 1. Feeding shell 101, Feeding shell chamber 101, Feeding nozzle mounting part 1011, Feeding shell fixing ring one 1012, Discharge pipe 1013, Feeding shell chamber inclined plate 1014, Feeding shell fixing ring two 1015, Feeding nozzle 2, Feeding nozzle bearing part 201, Feeding nozzle bearing part chamber 2011, Feeding nozzle feeding part 202, Feeding nozzle feeding part chamber 2021, Soil-breaking nozzle 3, First connecting rod 4, First connecting rod waist-shaped hole 401, Hopper 5, Hopper chamber 501, Drive assembly 6, Seeding motor 601, Transmission gear 6011, Seeding gear 602, Gear protrusion 6021, Auxiliary rotating shaft 603, Seeding transmission shaft 604, First auxiliary gear 605, Second auxiliary gear 606, Crank arm 607. Cylindrical placement plate 608, placement groove 6081, second connecting rod 7, third connecting rod 8, second connecting rod waist-shaped hole 801; torsion spring 9, walking wheel 10, frame 11, frame notch 1101, lifting column 1102, fixing part 11021, lifting part 11022, second bevel gear 1103, soil breaking mechanism 12, soil breaking mounting frame 1201, rotary harrow 1202, rotary harrow blade 12021, soil breaking drive shaft 12022, soil breaking motor 12023, soil sealing mechanism 13, soil sealing motor 1301, rotating column 1302, soil pushing blade 1303, first bevel gear 1304, soil pressing wheel 1305, column 14, connecting part 15, loading box 16, handrail 17, camera and infrared ranging module 18. Detailed Implementation

[0049] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following embodiments are described in detail with reference to the accompanying drawings. It should be noted that the description of these embodiments is for the purpose of helping to understand this utility model, but does not constitute a limitation on this utility model.

[0050] Example 1

[0051] like Figure 1-6 As shown, a crop sowing mechanism includes,

[0052] The feeding shell 1 has a feeding shell chamber 101 extending vertically inside. A cylindrical placement disk 608 is rotatably disposed inside the feeding shell chamber 101 via a drive mechanism, and the circumferential surface of the cylindrical placement disk 608 is in clearance fit with the side wall of the feeding shell chamber 101. The circumferential surface of the cylindrical placement disk 608 has multiple placement grooves 6081. A feeding shell chamber inclined plate 1014 (e.g., ...) is disposed inside the feeding shell chamber 101. Figure 6 As shown, the thick arrow indicates the direction of material flow;

[0053] The feeding nozzle 2 is vertically movably positioned below the feeding shell 1, with a gap between the feeding nozzle 2 and the feeding shell 1. The nozzle 2 has a feeding nozzle chamber extending vertically inside, and both the feeding shell chamber 101 and the feeding nozzle chamber are open. Specifically, the feeding nozzle 2 includes a feeding nozzle support part 201 and a feeding nozzle feeding part 202. The lower surface of the feeding nozzle support part 201 is connected to the feeding nozzle feeding part 202, and the feeding nozzle support part 201 has a feeding nozzle support part chamber 2011. This chamber 2011 extends vertically and is open on the upper and lower surfaces of the feeding nozzle feeding part 202. The feeding nozzle feeding part 202 has a feeding nozzle feeding part chamber 2021 inside. 2021 extends vertically and is open on the upper and lower surfaces of the feeding nozzle 202. The feeding nozzle chamber 2021 and the feeding nozzle support chamber 2011 form a feeding nozzle chamber, and the feeding nozzle chamber 2021 and the feeding nozzle support chamber 2011 are connected. The discharge pipe 1013 is installed on the lower surface of the feeding shell chamber 1011. The interior of the discharge pipe 1013 is connected to the feeding shell chamber 1011. The lower surface of the discharge pipe 1013 corresponds to the feeding nozzle support 201, and there is a gap between the discharge pipe 1013 and the feeding nozzle support 201, which is the gap between the feeding nozzle 2 and the feeding nozzle 1. The interior of the discharge pipe 1013 is connected to the feeding nozzle support chamber 2011.

[0054] The soil-breaking nozzle 3 is rotatably connected to the side wall of the discharge nozzle 2 to realize the opening and closing of the soil-breaking nozzle 3 and the discharge nozzle 2, and the direction of rotation of the soil-breaking nozzle 3 away from the discharge nozzle 2 is taken as the opening direction A (e.g., Figure 1 As shown), the excavator 3 digs a pit in the ground along the opening direction A;

[0055] The feeding shell 1 is provided with a drive assembly 6. The drive assembly 6 is hinged to the feeding nozzle 2 through two second connecting rods 7. Specifically, the drive assembly 6 includes a seeding motor 601, a seeding gear 602, and a seeding transmission shaft 604. The seeding motor 601 is fixedly installed on the side wall of the feeding shell 1. The seeding transmission shaft 604 is rotatably connected inside the feeding shell cavity 101. Both ends of the seeding transmission shaft 604 pass through and extend out of the feeding shell 1. The seeding gear 602 is installed on one end of the seeding transmission shaft 604. The free end of the seeding motor 602 is coupled with the seeding gear 602.

[0056] A transmission gear 6011 is fitted on the free end of the sowing motor 601, and the transmission gear 6011 is coupled with the sowing gear 602 in a transmission.

[0057] A gear protrusion 6021 is installed on the end face of the seeding gear 602, and a feeding nozzle mounting part 1011 is provided on the side wall of the feeding nozzle 1. One of the second connecting rods 7 has one side end rotatably connected to the mounting protrusion 6021 and the feeding nozzle mounting part 1011 respectively.

[0058] The drive assembly 6 also includes an auxiliary rotating shaft 603, which is rotatably mounted in the discharge chamber 101 and has one end extending out of the discharge chamber 101. A first auxiliary gear 605 is sleeved on the auxiliary rotating shaft 603 located outside the discharge chamber 101. The first auxiliary gear 605 and the seeding gear 602 are located on two opposite outer walls of the discharge chamber 1. A second auxiliary gear 606 is mounted on the seeding drive shaft 604 extending out of the other side wall of the discharge chamber 1. The first auxiliary gear 605 meshes with the second auxiliary gear 606. A crank arm 607 is provided on the first auxiliary gear 605. The two ends of the other second connecting rod 7 are rotatably connected to the discharge nozzle 2 and the crank arm 607, respectively.

[0059] The material discharge shell 1 is hinged to the soil breaking nozzle 3 via the first connecting rod 4. Specifically, a material discharge shell fixing ring 1012 is provided on one side wall of the material discharge shell 1. The first connecting rod 4 has a first connecting rod waist-shaped hole 401 along its own length direction. The first connecting rod 4 slides in the material discharge shell fixing ring 1012 through the first connecting rod waist-shaped hole 401. The other end of the first connecting rod 4 is rotatably connected to the soil breaking nozzle 3.

[0060] The feeding shell 1 is hinged to the feeding nozzle 2 via a third connecting rod 8, and the third connecting rod 8 and the first connecting rod 4 are respectively installed on two opposite side walls of the feeding nozzle 1. Specifically, a second feeding shell fixing ring 1015 is provided on the other side wall of the feeding shell 1, and the first feeding shell fixing ring 1012 and the second feeding shell fixing ring 1015 are installed on two opposite side walls of the feeding shell 1. The third connecting rod 8 has a second connecting rod waist-shaped hole 801 in its own length direction. The third connecting rod 8 slides in the second feeding shell fixing ring 1015 through the second connecting rod waist-shaped hole 801. The other end of the third connecting rod 8 is rotatably connected to the feeding nozzle 2. The purpose is to make the feeding nozzle 2 move relative to the feeding shell 1 under the drive of the drive mechanism 6. The discharge pipe 1013 deflects, thus changing the position between the discharge pipe 1013 and the discharge nozzle 2. When the distance between the discharge pipe 1013 and the upper surface of the discharge nozzle 2 is the lowest, the first connecting rod waist-shaped hole 401 will move to its limit position, and thus be pulled by the discharge nozzle mounting part 1011 on the outside of the discharge shell 1. At the same time, the first connecting rod waist-shaped hole 401 also exerts a pulling force on the soil breaking nozzle 3 greater than that of the torsion spring 9, causing the soil breaking nozzle 3 to open in the opening direction A, and the seeds inside the nozzle fall into the soil. After the discharge pipe 1013 moves upward, the first connecting rod waist-shaped hole 401 also stops limiting, thus removing the pulling force on the soil breaking nozzle 3. At the same time, the pulling force of the torsion spring 9 causes the soil breaking nozzle 3 to move in the opposite direction of the opening direction A until it closes with the discharge nozzle 2.

[0061] The hopper 5 is installed on the upper surface of the feed shell 1. It has a hopper chamber 501 extending vertically inside. The hopper chamber 501 is open on its upper and lower surfaces, and its lower surface is open into the feed shell chamber 101.

[0062] A cylindrical placement tray 608 is mounted on the sowing drive shaft 604. The cylindrical placement tray 608 has multiple placement grooves 6081 on its circumferential surface. When the soil-breaking nozzle 3 and the feeding nozzle 2 are open, the placement grooves 6081 on the cylindrical placement tray 608 are connected to the feeding chamber 101. Specifically, the lower surface of the hopper chamber 501 has a constricted opening. When the drive mechanism drives the cylindrical placement tray 608 to a predetermined position, this opening connects to one of the placement grooves 6081 on the cylindrical placement tray 608. A feeding chamber inclined plate 1014 is provided inside the feeding chamber 101. The cylindrical placement tray 608 is rotatably positioned inside the feeding chamber via the drive mechanism. The cylindrical placement tray 608 has multiple placement grooves 6081 on its circumferential surface. When the cylindrical placement tray 608... After the drive mechanism rotates to a predetermined position, when any one of the placement slots 6081 corresponds to the inclined plate 1014 of the discharge shell chamber, the placement slot 6081, the discharge chamber, and one side of the inclined plate 1014 of the discharge shell chamber form a discharge channel. At the same time, the drive mechanism drives the soil breaking nozzle 3 and the discharge nozzle 2 to open, and the discharge channel is connected to the discharge nozzle chamber. The purpose is to make the material in the placement slot 6081 on the cylindrical placement plate 608 fall off due to the obstruction of the inclined plate 1014 of the discharge shell chamber during the rotation of the cylindrical placement plate 608, and to allow it to enter the discharge pipe 1013 along the inclined plate 1014 of the discharge shell chamber, and then enter the discharge nozzle bearing chamber 2011 and the discharge nozzle discharge chamber 2021 in sequence. When the soil breaking nozzle 3 and the discharge nozzle 2 are opened, the material falls from the discharge nozzle discharge chamber 2021.

[0063] A torsion spring 9 is provided on the soil breaking nozzle 3 and the material feeding nozzle 2, and one end of the torsion spring 9 abuts against the side wall of the soil breaking nozzle 3, and the other end of the torsion spring 9 abuts against the side wall of the material feeding nozzle 2.

[0064] This seeding mechanism performs seeding operations in the following manner:

[0065] After the material is placed in the hopper chamber 501, the material enters one of the placement slots 6081 in the cylindrical placement tray 608 through the constriction of the lower surface of the hopper, and falls precisely into the placement slot 6081.

[0066] When the seeding motor 601 is restarted, its free end rotates, thereby driving the rotation of the seeding drive shaft 604. As a result, the cylindrical placement disc 608 rotates with the rotation of the seeding drive shaft 604, and then the several placement slots 6081 are respectively matched with the hopper chamber 501 and the discharge channel. Driven by the seeding motor 601, the material in the hopper chamber 501 enters the placement slot 6081, and the cylindrical placement disc 608 rotates and falls into the discharge nozzle chamber through the discharge channel.

[0067] Simultaneously, the rotation of the free end of the sowing motor 601 drives the transmission gear 6011 to rotate, which in turn drives the sowing gear 602 to rotate, which in turn drives the gear protrusion 6021 to rotate, which in turn drives one of the second connecting rods 7 to swing. At the same time, the rotation of the sowing gear 602 also drives the rotation of the sowing transmission shaft 604, which in turn drives the rotation of the first auxiliary gear 605, which in turn drives the rotation of the crank arm 607, which in turn drives the swing of the other second connecting rod 7. At the same time, the swing of the two second connecting rods 7 causes the feed nozzle 2 to deflect relative to the feed housing 1, which in turn drives the first connecting rod 4 to move on the feed housing fixing ring 1012. The sliding mechanism, along with the sliding of the third connecting rod 8 on the material feeding shell fixing ring 1015, ultimately causes the material feeding nozzle 2 and the soil breaking nozzle 3 to open and close. Specifically, the soil breaking nozzle 3 is driven to rotate relative to the material feeding nozzle 2 to dig a hole, thereby causing the material entering the material feeding nozzle chamber to fall into the hole. When the soil breaking nozzle 3 descends to a suitable height under the drive of the drive mechanism 6, the first connecting rod 4 is pulled to open the soil breaking nozzle 3 relative to the material feeding nozzle 2, thereby causing the material to fall into the soil hole. After the soil breaking nozzle 3 rises, the first connecting rod 4 is no longer under force, and the torsion spring 6 causes the soil breaking nozzle 3 to open and reset towards the material feeding nozzle 2, thereby closing the soil breaking nozzle 3 and the material feeding nozzle 2 to complete one sowing cycle.

[0068] Additionally, it should be noted that the material feeding chamber is divided into two chambers, namely, a first material feeding chamber and a second material feeding chamber, by a vertical partition. For this purpose, two cylindrical placement trays 608 are provided on the sowing drive shaft 604, and are respectively located in the first material feeding chamber and the second material feeding chamber. Therefore, the cylindrical placement trays 608 located in the first material feeding chamber can be used as seed material placement trays and fertilizer placement trays. There are multiple placement slots on both the seed material placement tray and the fertilizer placement tray. Each set of placement slots can hold the amount of material required for one sowing cycle. The sowing amount can be adjusted by changing the amount of fertilizer or seed material in each placement slot.

[0069] In addition, the hopper chamber 501 is equipped with a brush (not shown in the figure) at the joint with the seed tray and fertilizer tray, which can block and divert the seeds or fertilizer that are about to fall into the placement trough; thereby achieving the sowing needs.

[0070] Example 2

[0071] like Figure 7-11 As shown, an automatic seeder includes the seeding mechanism described above, and also includes a frame 11 with walking wheels 10, a soil breaking mechanism 12 and a soil sealing mechanism 13;

[0072] The seeder is positioned with the process of breaking soil, sowing, and sealing soil as the sowing direction H. The soil-breaking mechanism 12, the sowing mechanism, and the soil-sealing mechanism 13 are respectively mounted on the frame 11 along the sowing direction, with the soil-breaking mechanism 12 and the soil-sealing mechanism 13 in contact with the ground. Additionally, the lower ends of the sowing mechanism (i.e., the feed nozzle 2 and the soil-breaking nozzle 3) are aligned with the ground. Specifically, the soil-breaking mechanism 12 includes a soil-breaking mounting frame 1201 and a rotary tillage harrow 1202. The frame 11 extends along the sowing direction, forming a frame notch 1101. The soil-breaking mounting frame 1201 is fixedly mounted on the frame notch 1101, and the rotary tillage harrow 1202 is rotatably mounted on the soil-breaking mounting frame 1201. (The last sentence appears to be incomplete and possibly refers to a different mechanism.) Figure 7-8 As shown, the rotary tillage harrow 1202 includes rotary tillage harrow blades 12021, a soil-breaking drive shaft 12022, and a soil-breaking motor 12023. The soil-breaking motor 12023 is fixedly mounted on the soil-breaking mounting frame 1201, and the soil-breaking drive shaft 12022 is rotatably mounted on the soil-breaking mounting frame 1201. The free end of the soil-breaking motor 12023 is coupled with the end of the soil-breaking drive shaft 12022. The rotary tillage harrow blades 12021 are mounted on the circumferential surface of the soil-breaking drive shaft 12022. The purpose is to start the soil-breaking motor 12023, so that its free end begins to rotate, thereby driving the soil-breaking drive shaft 12022 to rotate, and then causing the several rotary tillage harrow blades 12021 on the soil-breaking drive shaft 12022 to perform soil-breaking operations while rotating.

[0073] A column 14 is installed on the frame notch 1101, extending vertically. One end of the soil-breaking mounting frame 1201 is installed at an angle on the frame 11 via the column 14. Several screw holes are provided on the column 14 along the vertical direction. The soil-breaking mounting frame 1201 is installed in the screw holes by bolts. The soil-breaking mounting frame 1201 is also bolted to the frame notch 1101 via a connector 15. The purpose is to adjust the bolt position between the column 14 and the soil-breaking mounting frame 1201, and to use the connector 15 to connect the soil-breaking mounting frame 1201 to the frame notch 1101, thereby adjusting the angle between the soil-breaking mounting frame 1201 and the frame 11. This allows for adjusting the angle or height of the rotary tillage blade 12021 in contact with the ground, so as to better carry out soil-breaking operations.

[0074] Several lifting columns 1102 are also provided on the upper surface of the frame 11 (each lifting column 1102 consists of a fixed part 11021 and a lifting part 11022, and the lower surface of the fixed part 11021 is fixedly installed on the upper surface of the frame 11, and the interior of the fixed part 11021 is provided with a lifting chamber extending in a vertical direction, the lower surface of the lifting part 11022 is inserted into the lifting chamber, and the lifting part 11022 extends in a vertical direction and is locked on the fixed part 11021 by a locking mechanism (specifically: the locking mechanism is a screw, and multiple fixing screw holes are provided on the side wall of the fixed part 11021, and multiple fixing screw holes are arranged in a vertical direction on the fixed part 11021, and a lifting screw hole is provided at the bottom of the side wall of the lifting part 11022, when the screw is inserted into the lifting screw hole). After the hole and one of the fixing screw holes are locked with a nut, the tops of several lifting columns 1102 are connected to a frame. The material discharge shell 1 in Embodiment 1 is installed on the frame, and the material discharge nozzle 2 and the soil breaking nozzle 3 are aligned with the ground. The purpose is to adjust the position of the lifting part 11022 between the fixing part 11021. When the position is adjusted to the predetermined position, the screw is inserted into the fixing screw hole and the lifting part screw hole at the predetermined position on the fixing part 11021, so as to realize the fixing of the lifting part after lifting and lowering relative to the fixing part, thereby adjusting the position of the sowing mechanism in Embodiment 1 in the vertical direction relative to the ground. Thus, the position of the soil breaking nozzle and the material discharge nozzle relative to the ground can be adjusted according to actual requirements, so as to control the depth of digging holes and the depth of placing materials (the materials are seeds or fertilizers).

[0075] The soil sealing mechanism 13 includes a soil sealing motor 1301, a rotating column 1302, and soil-pushing blades 1303. The soil sealing motor 1301 is fixedly installed on the frame 11. The rotating column 1302 is rotatably installed on the frame 11 in the vertical direction, and the end of the soil sealing motor 1301 and the rotating column 1302 are coupled together. There are multiple soil-pushing blades 1303, and the multiple soil-pushing blades 1303 are respectively fixed on the lower end of the circumference of the rotating column 1302. The purpose is to start the soil sealing motor 1301, and its free end rotates, thereby driving the rotating column 1302 to rotate, and then driving the soil-pushing blades 1303 to push the soil to cover the pit containing the material under the rotation.

[0076] In addition, a first bevel gear 1304 is installed on the rotating column 1302, and a second bevel gear 1103 is installed on the drive shaft on the walking wheel of the frame 11 (it should be noted that this drive shaft is connected to the walking wheel 10). The first bevel gear 1304 and the second bevel gear 1103 are coupled in transmission. The purpose is that when the soil sealing motor 1301 drives the rotating column 1302 to rotate, it drives the first bevel gear 1304 to rotate, thereby driving the second bevel gear 1103 to rotate, which in turn drives the drive shaft on the walking wheel of the frame 11 to rotate, thereby driving the walking wheel 10 to rotate, and thus the seeder moves under the drive of the soil sealing motor 1301.

[0077] The soil sealing mechanism 13 also includes a soil pressing wheel 1305. A soil pressing connector is installed on the frame 11, and the soil pressing wheel 1305 is rotatably installed at the bottom end of the soil pressing connector and in contact with the ground. After the surface of the pit containing the material is covered with soil, the soil pressing wheel 1305 is used to compact the covered soil as the device moves, thus completing the planting operation.

[0078] The frame 11 is also provided with a loading box 16, which extends vertically and is open on its upper surface. The loading box 16 is located near the sowing mechanism in Embodiment 1. The purpose is to place the whole package or bag of material in the loading box 16 before planting, and then manually place it into the hopper 5.

[0079] The frame 11 is also equipped with a handrail 17, which is installed at the end of the frame 11 extending along the sowing direction. The purpose of the handrail 17 is to help push the entire seeder to move in the field for planting operations.

[0080] In addition, a camera and an infrared ranging module 18 are also installed on the frame 11, and the sensing direction of the camera and the infrared ranging module 18 is the same as the sowing direction. This is used to detect that the set distance has been reached before starting the sowing process (i.e., the sowing method of the sowing mechanism in Embodiment 1).

[0081] Additionally, a control panel (not shown in the figure) is installed on the frame 11. This control panel is electrically connected to the input terminals of the camera and infrared ranging module 18. The control panel is also electrically connected to the sowing motor 601, the soil-breaking motor 12023, and the soil-sealing motor 1301. After the camera and infrared ranging module 18 measure the distance, the control panel activates the soil-breaking motor 12023, the sowing motor 601, and the soil-sealing motor 1301 respectively to perform the soil-breaking, sowing, and soil-sealing planting operations (see details). Figure 11 ).

[0082] The above embodiments are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Various modifications or variations that can be made by those skilled in the art within the scope of the appended claims without creative effort are still within the scope of protection of this patent.

Claims

1. A crop sowing mechanism, characterized in that, include, The material feeding shell has a material feeding shell chamber extending vertically inside. A cylindrical placement disk is rotatably arranged in the material feeding shell chamber by a driving mechanism. The circumferential surface of the cylindrical placement disk is clearance-fitted with the side wall of the material feeding shell chamber. The circumferential surface of the cylindrical placement disk has multiple placement grooves. A material feeding shell chamber inclined plate is arranged in the material feeding shell chamber. The feeding nozzle is vertically movable below the feeding shell, and there is a gap between the feeding nozzle and the feeding shell. The nozzle has a feeding nozzle chamber extending vertically inside, and both the feeding shell chamber and the feeding nozzle chamber are open. The soil-breaking nozzle is rotatably connected to the side wall of the feeding nozzle to realize the opening and closing of the soil-breaking nozzle and the feeding nozzle. The direction of rotation of the soil-breaking nozzle facing away from the feeding nozzle is taken as the opening direction. The soil-breaking nozzle digs a pit in the ground along the opening direction. The material feeding shell is provided with a driving assembly. The driving assembly is hinged to the material feeding nozzle through two second connecting rods. The material feeding shell is hinged to the soil breaking nozzle through a first connecting rod. The material feeding shell is hinged to the material feeding nozzle through a third connecting rod. The third connecting rod and the first connecting rod are respectively installed on two opposite side walls of the material feeding nozzle. When the cylindrical placement disc is rotated to the predetermined position by the drive mechanism, and any one of its placement slots corresponds to the inclined plate of the discharge shell chamber, the placement slot, the discharge chamber, and one side of the inclined plate of the discharge shell chamber form a discharge channel. At the same time, the drive mechanism drives the soil breaking nozzle and the discharge nozzle to open, and the discharge channel is connected to the discharge nozzle chamber.

2. The seeding mechanism according to claim 1, characterized in that: It also includes, A hopper is installed on the upper surface of a feed shell and has a hopper chamber extending vertically inside it. The hopper chamber is open on its upper and lower surfaces and its lower surface opens into the feed shell chamber. The lower surface of the hopper chamber has a constricted opening. When the drive mechanism drives the cylindrical placement disk to rotate to a predetermined position, the opening is connected to one of the placement slots on the cylindrical placement disk.

3. The seeding mechanism according to claim 2, characterized in that: The drive assembly includes a seeding motor and a seeding drive shaft. The seeding motor is fixedly installed on the side wall of the discharge shell. The discharge shell cavity is rotatably connected to the seeding drive shaft, and a cylindrical placement disc is sleeved on the seeding drive shaft.

4. The seeding mechanism according to claim 3, characterized in that: The drive assembly also includes a seeding gear, with both ends of the seeding drive shaft passing through and extending out of the feed housing. The seeding gear is mounted on the outer wall of the feed housing, and the free end of the seeding motor is coupled to the seeding gear. A gear protrusion is installed on the end face of the seeding gear, and a feeding nozzle mounting component is provided on the side wall of the feeding nozzle. One side of the second connecting rod is rotatably connected to the mounting protrusion and the feeding nozzle mounting component at both ends, respectively. An auxiliary rotating shaft is rotatably installed in the material discharge chamber and one end of the shaft extends out of the chamber. A first auxiliary gear is sleeved on the auxiliary rotating shaft located outside the material discharge chamber. The first auxiliary gear and the seeding gear are located on two opposite outer walls of the material discharge chamber. A second auxiliary gear is installed on the seeding drive shaft extending out of the other side wall of the material discharge chamber. The first auxiliary gear meshes with the second auxiliary gear. A crank arm is provided on the first auxiliary gear. The two ends of the other second connecting rod are rotatably connected to the material discharge nozzle and the crank arm, respectively. A material feeding shell fixing ring is provided on one side wall of the material feeding shell. One end of the first connecting rod is slidably connected to the material feeding shell fixing ring, and the other end of the first connecting rod is rotatably connected to the soil breaking nozzle. A second material feeding shell fixing ring is provided on the other side wall of the material feeding shell, and the first and second material feeding shell fixing rings are installed on two opposite side walls of the material feeding shell. One end of the third connecting rod is slidably connected to the first material feeding shell fixing ring, and the other end of the third connecting rod is rotatably connected to the material feeding nozzle.

5. The seeding mechanism according to claim 1, characterized in that: The soil breaking nozzle and the material feeding nozzle are equipped with torsion springs, with one end of the torsion spring abutting against the side wall of the soil breaking nozzle and the other end of the torsion spring abutting against the side wall of the material feeding nozzle.

6. An automatic seeder comprising the seeding mechanism according to any one of claims 1-5, characterized in that: It also includes a frame with wheels, a breaking mechanism, and a sealing mechanism; The seeder is configured with the process of breaking the soil, sowing, and sealing the soil as the sowing direction, and the soil breaking mechanism, sowing mechanism, and sealing mechanism are respectively installed on the frame along the sowing direction.

7. The automatic seeder according to claim 6, characterized in that: The soil-breaking mechanism includes a soil-breaking mounting frame and a rotary tillage harrow. The frame extends along the sowing direction and forms a frame notch. The soil-breaking mounting frame is fixedly installed on the frame notch, and the rotary tillage harrow is rotatably mounted on the soil-breaking mounting frame.

8. The automatic seeder according to claim 7, characterized in that: The sealing mechanism includes a sealing motor, a rotating column, and soil-pulling blades. The sealing motor is fixedly installed on the frame. The rotating column is rotatably installed on the frame in a vertical direction, and the sealing motor is coupled to the end of the rotating column. There are multiple soil-pulling blades, and the multiple soil-pulling blades are respectively fixed on the lower end of the circumference of the rotating column.

9. The automatic seeder according to claim 8, characterized in that: The soil sealing mechanism also includes a soil pressing wheel, and the soil pressing connector is installed on the frame. The soil pressing wheel is rotatably installed at the bottom end of the soil pressing connector and contacts the ground.

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