Seeder for wheat in stubble field

Abstract

The invention relates to the technical field of agricultural sowing machinery, and particularly discloses a stubble field wheat sowing machine which comprises a seed discharging mechanism, an air pump and an air conveying pipe, a plurality of sowing assemblies are arranged on the bottom side of the seed discharging mechanism, and each sowing assembly comprises a three-position five-way electromagnetic valve, a seed conveying pipe, an air cylinder, a one-way bearing and a sleeve. When the air cylinder drives the rack to move in one direction, the one-way bearing freely rotates, when the air cylinder drives the rack to move in the other direction, the one-way bearing is locked, the rack drives the cutting disc cutter to rotate through the gear, the one-way bearing, the sleeve and the supporting rod, and straw is cut by the cutting edge and the ditching plate of the cutting disc cutter in an engaged mode. The influence of straw and stubble on sowing of the sowing machine is reduced, wheat seeds are sown evenly, the quality and efficiency of wheat sowing are guaranteed, disturbance to the soil surface is small, and water and soil loss is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural sowing machinery, in particular to a stubble field wheat sowing machine. Background Art

[0002] Stubble sowing means leaving crop straw and residual stubble on the ground after harvesting the crops, keeping the straw on the surface and the stubble buried in the soil, so as to achieve the purpose of conserving moisture, fertilizer, soil, and reducing soil erosion. It is an eco-friendly agricultural farming method.

[0003] In the prior art wheat stubble sowing process, due to the crop straw and stubble left on the ground, the seeder often has problems such as straw entanglement on the blade shaft and clogging of the furrow opener. If the stubble is cleaned manually or mechanically, it is time-consuming and laborious, and it is easy to cause wheat rows to be broken, which seriously affects the quality and efficiency of sowing. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a wheat seeder for stubble fields, which reduces the influence of straw and stubble on the sowing of the seeder, makes the wheat seeds sown evenly, ensures the quality and efficiency of wheat sowing, has little disturbance on the soil surface, and reduces soil erosion.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a stubble field wheat seeder, comprising a seed discharging mechanism, an air pump and an air pipe, wherein a plurality of sowing components are arranged on the bottom side of the seed discharging mechanism.

[0006] The sowing assembly includes a three-position five-way solenoid valve, a seed delivery pipe, a cylinder, a one-way bearing, a sleeve, a support rod rotatably installed on the bottom side of the seed discharging mechanism, and a bracket installed on the bottom side of the seed discharging mechanism. A ditching plate is installed on the bottom side of the bracket. The ditching plate has a soil-breaking edge and a sowing edge. The bottom of the sowing edge is fixedly connected to the bottom end of the seed delivery pipe. The top of the seed delivery pipe is connected to the seed discharge port of the seed discharging mechanism. A cutting disc knife is fixed on the support rod. The outer edge of the cutting disc knife is provided with a plurality of cutting edges. The cutting disc The lower half of the knife and the soil-breaking edge of the furrowing plate are slidably fitted, a sleeve is installed on the support rod through a positioning assembly, a gear is installed on the outer peripheral side of the sleeve through a one-way bearing, the bracket and the fixed part of the cylinder are fixedly connected, a rack is fixed on the moving part of the cylinder, the rack and the gear are meshed, the two ports of the cylinder are respectively connected to the two working ports of the three-position five-way solenoid valve through a conduit, the two exhaust ports of the three-position five-way solenoid valve are connected to the inner cavity of the seed delivery pipe through a conduit, and the air inlet of the three-position five-way solenoid valve and the air outlet of the air pump are connected through an air delivery pipe.

[0007] When the cylinder drives the rack to move in one direction, the one-way bearing rotates freely, and when the cylinder drives the rack to move in another direction, the one-way bearing is locked. The rack drives the cutting disc knife to rotate through the gear, the one-way bearing, the sleeve, and the support rod. The cutting blade and the furrowing plate of the cutting disc knife bite and cut the straw.

[0008] As a preferred technical solution of the present invention, the positioning assembly includes a latching tooth sliding along the length direction of the support rod, an elastic member is installed on the support rod to push the latching tooth to move toward the sleeve, and a plurality of slots are opened at the end of the sleeve corresponding to the position of the latching tooth, and the slot has two inclined inner walls.

[0009] As a preferred technical solution of the present invention, the positioning assembly also includes a first sliding sleeve and a second sliding sleeve, the first sliding sleeve slides along the length direction of the support rod, the second sliding sleeve is fixed on the support rod, the elastic member is arranged between the first sliding sleeve and the second sliding sleeve, the locking tooth is fixed on the first sliding sleeve, and the support rod is provided with a guide protrusion for limiting the rotation of the first sliding sleeve around the support rod.

[0010] As a preferred technical solution of the present invention, the elastic member is a spring sleeved on the support rod.

[0011] As a preferred technical solution of the present invention, the sowing assembly also includes two dragging belts, one end of which is fixedly connected to the bottom of the sowing edge of the furrowing plate, and the bottom end of the seed conveying pipe is located between the two dragging belts.

[0012] As a preferred technical solution of the present invention, the towing belt is a chain or a rope with a knot.

[0013] As a preferred technical solution of the present invention, the thickness of the trenching plate is 7.0-20.0 mm, the outer diameter of the seed conveying tube is smaller than the thickness of the trenching plate, and the soil-breaking edge of the trenching plate has a cutting edge.

[0014] As a preferred technical solution of the present invention, the radius of the cutting disc knife is 70.0-150.0 mm.

[0015] As a preferred technical solution of the present invention, the cutting edge is a concave arc-shaped edge.

[0016] As a preferred technical solution of the present invention, the trenching plate is detachably mounted on the bracket by bolts, and the angle between the soil-breaking edge of the trenching plate and the soil plane is 30°-70°.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. In the stubble field wheat seeder of the present invention, the cylinder drives the rack to move back and forth. During the locking process of the one-way bearing, the rack can drive the cutting disc knife to rotate in one direction through the gear, the one-way bearing, the sleeve and the support rod: on the one hand, the cutting blade of the cutting disc knife and the furrowing plate bite and cut the straw and stubble, reducing the influence of the straw and stubble on wheat sowing, and the disturbance to the soil surface is small, reducing soil erosion; on the other hand, the air discharged during the extension and contraction of the cylinder enters the seed delivery pipe, so that an impact airflow is generated in the seed delivery pipe, and the bottom end of the seed delivery pipe is prevented from being blocked by the soil. The wheat seeds pass through the seed delivery pipe and fall at the bottom of the narrow gap drawn by the furrowing plate, ensuring the accuracy of wheat seed sowing; on the other hand, when a hard object is stuck between the cutting blade of the cutting disc knife and the furrowing plate, the elastic member and the clamping teeth cause the sleeve to drive the cutting disc knife to rotate in the opposite direction, which is convenient for the hard object between the cutting disc knife and the furrowing plate to separate, and prevent the hard object from damaging the cutting disc knife and the furrowing plate, thereby improving the safety of the sowing assembly.

[0018] 2. In the stubble field wheat seeder of the present invention, the dragging belt is 1.0-3.0 cm away from the soil surface during sowing. The two dragging belts of the sowing assembly break up the soil and mix the wheat seeds with the broken soil, thereby increasing the sowing width of the wheat seeds, improving the utilization rate of sunlight, water and fertilizer in the soil, causing little disturbance to the soil surface, and reducing soil erosion.

[0019] 3. The stubble field wheat seeder of the present invention can adjust the distance between the first sliding sleeve and the second sliding sleeve to adjust the squeezing force of the clamping teeth on the clamping groove, and the driving torque of the cutting disc knife rotating in the opposite direction can be easily adjusted.

[0020] 4. In the stubble field wheat seeder of the present invention, the furrowing plate is detachably mounted on the bracket by bolts, and the height of the furrowing plate is adjustable. The wheat sowing depth can be adjusted by adjusting the height of the bracket, thereby improving the applicability of the stubble field wheat seeder. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of one viewing angle of the present invention; Figure 2 for Figure 1 A schematic diagram of the structure at A; Figure 3 It is another perspective structural schematic diagram of the present invention; Figure 4 It is a structural schematic diagram of a sowing assembly of the present invention from one perspective; Figure 5 for Figure 4 A schematic diagram of the structure at B; Figure 6 It is a structural schematic diagram of the sowing assembly of the present invention from another perspective; Figure 7It is a bottom view of the structure of the sowing assembly of the present invention.

[0022] In the figure: 1 seed discharging mechanism, 2 cutting blade, 3 cutting disc knife, 4 furrowing plate, 5 air pump, 6 three-position five-way solenoid valve, 7 bracket, 8 air pipe, 9 drag belt, 10 seed conveying pipe, 11 cylinder, 12 rack, 13 support rod, 14 gear, 15 one-way bearing, 16 sleeve, 17 latching tooth, 18 first sliding sleeve, 19 elastic member, 20 second sliding sleeve, 21 soil breaking edge, 22 sowing edge. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] Embodiment 1: See also Figure 1-7 The present embodiment discloses a stubble field wheat seeder, comprising a seed discharging mechanism 1, an air pump 5 and an air pipe 8. The bottom side of the seed discharging mechanism 1 is provided with no less than two sowing components.

[0025] The sowing assembly includes a three-position five-way solenoid valve 6, a seed conveying pipe 10, a cylinder 11, a one-way bearing 15, a sleeve 16, a support rod 13 rotatably mounted on the bottom side of the seed discharging mechanism 1, and a bracket 7 mounted on the bottom side of the seed discharging mechanism 1. A ditching plate 4 is fixedly mounted on the bottom side of the bracket 7. The ditching plate 4 has a soil-breaking edge 21 and a sowing edge 22. The bottom of the sowing edge 22 is fixedly connected to the bottom end of the seed conveying pipe 10. The top of the seed conveying pipe 10 is connected to the seed discharge port of the seed discharging mechanism 1. A cutting disc 3 is fixed on the support rod 13. The outer edge of the cutting disc 3 is provided with a plurality of cutting blades 2. The lower half of the disc cutter 3 and the soil-breaking edge 21 of the furrowing plate 4 are slidably fitted, a sleeve 16 is installed on the support rod 13 through a positioning assembly, a gear 14 is installed on the outer peripheral side of the sleeve 16 through a one-way bearing 15, the bracket 7 and the fixed part of the cylinder 11 are fixedly connected, a rack 12 is fixed on the moving part of the cylinder 11, the rack 12 and the gear 14 are meshed, the two ports of the cylinder 11 are respectively connected to the two working ports of the three-position five-way solenoid valve 6 through a conduit, the two exhaust ports of the three-position five-way solenoid valve 6 are connected to the inner cavity of the seed delivery pipe 10 through a conduit, and the air inlet of the three-position five-way solenoid valve 6 and the air outlet of the air pump 5 are connected through an air supply pipe 8.

[0026] Among them, when the cylinder 11 drives the rack 12 to move in one direction, the one-way bearing 15 rotates freely, and when the cylinder 11 drives the rack 12 to move in another direction, the one-way bearing 15 is locked. The rack 12 drives the cutting disc knife 3 to rotate through the gear 14, the one-way bearing 15, the sleeve 16, and the support rod 13. The cutting blade 2 of the cutting disc knife 3 and the furrowing plate 4 engage and cut the straw.

[0027] Furthermore, the thickness of the furrowing plate 4 is 7.0-20.0 mm, the outer diameter of the seed conveying tube 10 is smaller than the thickness of the furrowing plate 4, and the soil-breaking edge 21 of the furrowing plate 4 has a cutting edge.

[0028] Furthermore, the radius of the cutting disc 3 is 70.0-150.0 mm, the cutting disc 3 is embedded in the soil to a depth of less than 30.0 mm, the embedding depth of the trenching plate 4 is less than 65.0 mm, and the bottom of the cutting disc 3 is higher than the bottom of the trenching plate 4 .

[0029] Furthermore, the positioning assembly is a bolt or a clamp.

[0030] Furthermore, in the prior art, the three-position five-way solenoid valve 6 has an air inlet, two exhaust ports and two working ports. The two ports of the cylinder 11 are respectively connected to the two working ports of the three-position five-way solenoid valve 6 through conduits, and air enters different ports of the cylinder to realize the extension and retraction action of the cylinder.

[0031] Furthermore, the seed discharging mechanism 1 is a common device in the prior art, which realizes uniform discharge of wheat seeds. The seed discharging mechanism 1 includes a material box, a seed meter and a seed meter driving mechanism. The seed meter is an outer groove wheel type seed meter, a horizontal disc type seed meter or a vertical disc type seed meter.

[0032] The air pump 5 and the three-position five-way solenoid valve 6 are electrically connected to the external control switch group respectively. The air pump 5 and the three-position five-way solenoid valve 6 used in the present invention are commonly used electronic components in the prior art. Their working methods and circuit structures are well-known technologies and will not be described in detail here.

[0033] Furthermore, the support rod 13 is installed on the seed discharging mechanism 1 through a bearing seat, or the support rod 13 is installed on the bracket 7 through a bearing seat, or any two adjacent support rods 13 are rotatably connected through a bearing and at least one support rod 13 is installed on the seed discharging mechanism 1 through a bearing seat.

[0034] The working process and principle of this embodiment are: The seed discharging mechanism 1 is installed at the rear of the external traction vehicle, wheat seeds are put into the seed discharging mechanism 1, the furrowing plate 4 is inserted into the soil, the air pump 5 and the three-position five-way solenoid valve 6 are energized to make the cylinder 11 of the sowing component reciprocate and extend, the external traction vehicle drives the wheat seeder in the stubble field to move, and the external traction vehicle transmits power to the seed discharging mechanism 1 to continuously discharge the wheat seeds in the seed discharging mechanism 1.

[0035] The soil-breaking edge 21 of the furrowing plate 4 creates a narrow gap in the soil, causing little disturbance to the soil surface. During the movement of the furrowing plate 4, straw accumulates between the furrowing plate 4 and the cutting disc 3. The rack 12 drives the cutting disc 3 to rotate through the gear 14, the one-way bearing 15, the sleeve 16, and the support rod 13. The cutting blade 2 of the cutting disc 3 and the furrowing plate 4 engage and cut the straw.

[0036] The air discharged during the expansion and contraction of the cylinder 11 enters the seed conveying pipe 10, generating an impact airflow in the seed conveying pipe 10 to prevent the bottom end of the seed conveying pipe 10 from being blocked by soil. The wheat seeds pass through the seed conveying pipe 10 and fall at the bottom of the narrow gap drawn by the furrowing plate 4, thereby ensuring the accuracy of wheat seed sowing.

[0037] Embodiment 2: like Figure 4 , 5 As shown, the present embodiment discloses a stubble field wheat seeder, and its structure is substantially the same as that of the first embodiment, except that the positioning assembly of the present embodiment includes a latching tooth 17 sliding along the length direction of the support rod 13, and an elastic member 19 is installed on the support rod 13 to push the latching tooth 17 to move toward the sleeve 16, and a plurality of latching grooves are provided at the end of the sleeve 16 corresponding to the position of the latching tooth 17, and the latching groove has two inclined inner walls, and the inclined inner walls of the latching groove facilitate the latching tooth 17 to detach from the latching groove.

[0038] Preferably, the elastic member 19 is a metal elastic sheet or an elastic rubber rod.

[0039] The working process and principle of this embodiment are: The one-way bearing 15 is in a locked state. At this time, the rack 12 drives the cutting disc knife 3 to rotate in the forward direction through the gear 14, the one-way bearing 15, the sleeve 16, and the support rod 13. When a hard object is stuck between the cutting edge 2 of the cutting disc knife 3 and the grooving plate 4, the cutting disc knife 3 is blocked by the hard object, the cutting disc knife 3 stops rotating, the sleeve 16 rotates around the support rod 13, and the latch tooth 17 abuts against other latch grooves.

[0040] The one-way bearing 15 is transformed from a locked state to a free rotation state, and the latch tooth 17 contacts the middle part of an inclined inner wall of the slot. The elastic member 19 and the latch tooth 17 enable the sleeve 16 to drive the cutting disc knife 3 to rotate in the opposite direction, which facilitates the separation of hard objects between the cutting disc knife 3 and the furrowing plate 4, avoids damage to the cutting disc knife 3 and the furrowing plate 4 by hard objects, and improves the safety of the sowing assembly.

[0041] Furthermore, hard objects include but are not limited to stones, bricks, and plastics.

[0042] Embodiment three: like Figure 5 As shown, this embodiment discloses a stubble field wheat seeder, and its structure is substantially the same as that of the second embodiment, except that the positioning assembly of this embodiment further includes a first sliding sleeve 18 and a second sliding sleeve 20, the first sliding sleeve 18 can slide along the length direction of the support rod 13, the second sliding sleeve 20 is fixed to the support rod 13 by bolts, the elastic member 19 is arranged between the first sliding sleeve 18 and the second sliding sleeve 20, the latch tooth 17 is fixed to the first sliding sleeve 18, and the support rod 13 is provided with a guide protrusion for limiting the first sliding sleeve 18 from rotating around the support rod 13, and the guide protrusion prevents the first sliding sleeve 18 from rotating around the support rod 13.

[0043] The working process and principle of this embodiment are: The distance between the first sliding sleeve 18 and the second sliding sleeve 20 is adjusted to adjust the pressing force of the latching teeth 17 on the latching groove, thereby adjusting the driving torque for the cutting disc knife 3 to rotate in the opposite direction.

[0044] Embodiment 4: like Figure 5 As shown, this embodiment discloses a stubble field wheat seeder, and its structure is substantially the same as that of the third embodiment, except that the elastic member 19 of this embodiment is a spring sleeved on the support rod 13, and the positioning assembly is easy to install and disassemble.

[0045] Embodiment five: like Figure 1 , 3 As shown in , 4, 6, and 7, this embodiment discloses a stubble field wheat seeder. Based on any one of embodiments one to four, the sowing assembly of this embodiment also includes two towing belts 9, one end of the towing belt 9 is fixedly connected to the bottom of the sowing edge 22 of the furrowing plate 4, and the bottom end of the seed conveying pipe 10 is located between the two towing belts 9.

[0046] Furthermore, the towing belt 9 is a chain or a rope with a knot.

[0047] The working process and principle of this embodiment are: During the sowing process, the dragging belt 9 is 1.0-3.0 cm away from the soil surface. The two dragging belts 9 of the sowing assembly crush the soil and mix the wheat seeds with the crushed soil, thereby increasing the sowing width of the wheat seeds, improving the utilization rate of sunlight, water and fertilizer in the soil, and causing little disturbance to the soil surface.

[0048] Furthermore, the air exhausted during the extension and retraction of the cylinder 11 enters the seed conveying tube 10 , generating an impact airflow in the seed conveying tube 10 . The wheat seeds leaving the seed conveying tube 10 are blown by the impact airflow, causing the wheat seeds to randomly move toward one of the dragging belts 9 .

[0049] Embodiment six: like Figure 4 As shown, this embodiment discloses a stubble field wheat seeder, and its structure is substantially the same as that of the fifth embodiment, except that the trenching plate 4 of this embodiment is detachably mounted on the bracket 7 by bolts, the height of the trenching plate 4 is adjustable, and the angle between the soil-breaking edge 21 of the trenching plate 4 and the soil plane is 30°-70°.

[0050] The wheat sowing depth can be adjusted by adjusting the height of the bracket 7 .

[0051] Embodiment seven: like Figure 2 As shown, this embodiment discloses a stubble field wheat seeder, and its structure is substantially the same as that of the first embodiment, except that the cutting blade 2 of this embodiment is an inwardly concave arc blade, which facilitates the cooperation of the cutting disc knife 3 and the furrowing plate 4 in cutting the straw.

[0052] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A stubble field wheat seeder, characterized by: It comprises a seed discharging mechanism (1), an air pump (5) and an air delivery pipe (8), wherein a plurality of sowing components are arranged on the bottom side of the seed discharging mechanism (1); The sowing assembly comprises a three-position five-way solenoid valve (6), a seed conveying pipe (10), a cylinder (11), a one-way bearing (15), a sleeve (16), a support rod (13) rotatably mounted on the bottom side of a seed discharging mechanism (1), and a bracket (7) mounted on the bottom side of the seed discharging mechanism (1); a furrowing plate (4) is mounted on the bottom side of the bracket (7); the furrowing plate (4) has a soil-breaking edge (21) and a sowing edge (22); the bottom of the sowing edge (22) is fixedly connected to the bottom end of the seed conveying pipe (10); the top end of the seed conveying pipe (10) is connected to the seed discharging port of the seed discharging mechanism (1); a cutting disc knife (3) is fixed on the support rod (13); the outer edge of the cutting disc knife (3) is provided with a plurality of cutting blades (2); The lower half of the disc cutter (3) and the soil-breaking edge (21) of the furrowing plate (4) are slidably fitted, a sleeve (16) is installed on the support rod (13) through a positioning assembly, a gear (14) is installed on the outer peripheral side of the sleeve (16) through a one-way bearing (15), the bracket (7) and the fixed part of the cylinder (11) are fixedly connected, a rack (12) is fixed on the movable part of the cylinder (11), the rack (12) and the gear (14) are meshed, the two ports of the cylinder (11) are respectively connected to the two working ports of the three-position five-way solenoid valve (6) through a conduit, the two exhaust ports of the three-position five-way solenoid valve (6) are connected to the inner cavity of the seed conveying pipe (10) through the conduit, and the air inlet of the three-position five-way solenoid valve (6) and the air outlet of the air pump (5) are connected through an air delivery pipe (8); The one-way bearing (15) is freely rotated when the cylinder (11) drives the rack (12) to move in one direction, and the one-way bearing (15) is locked when the cylinder (11) drives the rack (12) to move in another direction. The rack (12) drives the cutting disc knife (3) to rotate through the gear (14), the one-way bearing (15), the sleeve (16), and the support rod (13), and the cutting blade (2) and the furrowing plate (4) of the cutting disc knife (3) engage and cut the straw.

2. The stubble field wheat seeder according to claim 1, characterized in that: The positioning assembly comprises a latching tooth (17) which slides along the length direction of the support rod (13); an elastic member (19) is mounted on the support rod (13) to push the latching tooth (17) to move toward the sleeve (16); a plurality of latching grooves are formed at the end of the sleeve (16) at positions corresponding to the latching tooth (17); the latching grooves have two inclined inner walls.

3. The stubble field wheat seeder according to claim 2, characterized in that: The positioning assembly further comprises a first sliding sleeve (18) and a second sliding sleeve (20), wherein the first sliding sleeve (18) slides along the length direction of the support rod (13), the second sliding sleeve (20) is fixed on the support rod (13), the elastic member (19) is arranged between the first sliding sleeve (18) and the second sliding sleeve (20), the latching tooth (17) is fixed on the first sliding sleeve (18), and the support rod (13) is provided with a guide protrusion for limiting the first sliding sleeve (18) from rotating around the support rod (13).

4. The stubble field wheat seeder according to claim 3, characterized in that: The elastic member (19) is a spring sleeved on the support rod (13).

5. The stubble field wheat seeder according to any one of claims 1 to 4, characterized in that: The sowing assembly further comprises two dragging belts (9), one end of the dragging belt (9) being fixedly connected to the bottom of the sowing edge (22) of the furrowing plate (4), and the bottom end of the seed conveying pipe (10) being located between the two dragging belts (9).

6. The stubble field wheat seeder according to claim 5, characterized in that: The towing belt (9) is a chain or a rope with a knot.

7. The stubble field wheat seeder according to claim 1, characterized in that: The thickness of the furrowing plate (4) is 7.0-20.0 mm, the outer diameter of the seed conveying tube (10) is smaller than the thickness of the furrowing plate (4), and the soil-breaking edge (21) of the furrowing plate (4) has a cutting edge.

8. The stubble field wheat seeder according to claim 1, characterized in that: The radius of the cutting disc knife (3) is 70.0-150.0 mm.

9. The stubble field wheat seeder according to claim 1, characterized in that: The cutting edge (2) is a concave arc-shaped edge.

10. The stubble field wheat seeder according to claim 1, characterized in that: The trenching plate (4) is detachably mounted on the bracket (7) by means of bolts, and the angle between the soil-breaking edge (21) of the trenching plate (4) and the soil plane is 30°-70°.

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