Compression roller structure with soil crushing function for wheat seeder

Abstract

The invention discloses a compression roller structure with a soil crushing function for a wheat seeder, and relates to the technical field of cleaning, the compression roller structure comprises seeding equipment, the seeding equipment comprises a car hopper, the car hopper is provided with a compression roller structure, and before a forward and reverse motor is controlled to work, a water inlet pipe fixedly connected with one end of a flow guide box can be connected with a water source; a plurality of drainage pipes are fixedly installed on one side of the flow guide box, the drainage amount is small, the multiple drainage pipes play a role in pressurizing water, the multiple drainage pipes spray the water to the outer side of the compression roller, then a forward and reverse motor is controlled to work to drive the compression roller to rotate, wet soil on the outer side of the compression roller is flushed with airflow, and cleanliness of the outer side of the compression roller is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of cleaning, in particular to a pressure roller structure with a soil crushing function for a wheat seeder. Background Art

[0002] The pressure roller is located at the rear of the wheat seeder. Its main function is to level and compact the soil layer after sowing. By compacting the soil, the density and firmness of the soil can be increased, thereby preventing the soil from losing moisture too quickly, protecting the soil moisture and maintaining ground temperature, and improving the sowing quality: In fields with high humidity or high soil viscosity, the surface of the roller is often covered with mud, which affects the quality of soil compaction and sometimes needs to be manually removed, which affects the work efficiency. Therefore, timely removal of mud from the surface of the roller can improve work efficiency. Summary of the invention

[0003] The object of the present invention is to provide a pressure roller structure with soil crushing function for a wheat planter to solve the problems raised in the prior art.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pressure roller structure with a soil crushing function for a wheat seeder, comprising a sowing device, the sowing device comprising a bucket, the bucket being provided with a pressure roller structure, the pressure roller structure comprising a mounting shaft, a second transmission shaft, three pressure rollers fixedly mounted on the outside of the mounting shaft, a mounting groove formed at one end of the mounting shaft, a soil crushing needle control assembly arranged inside the mounting groove, and a transmission assembly arranged between the mounting shaft and the second transmission shaft, a plurality of soil crushing needles being slidably mounted on the pressure roller, and a soil crushing structure being arranged on one side of the top of the mounting shaft.

[0005] Preferably, a connecting frame is fixedly installed on one side of the truck bucket, and a mounting frame 1, a sowing structure and a soil plow are fixedly installed on the bottom of the truck bucket in sequence from left to right, and a wheel is rotatably installed inside the mounting frame 1.

[0006] Preferably, the transmission assembly includes a plurality of mounting frames four rotatably mounted between the outer side of the transmission shaft and the truck bucket, and two sprockets, one of which is fixedly mounted on one end of the outer side of the mounting shaft, and chains are meshed on the outer sides of the two sprockets.

[0007] Preferably, a forward and reverse motor is arranged at one end of the second transmission shaft, a mounting frame 2 is arranged on the outer fixed sleeve of the forward and reverse motor, the mounting frame 2 is fixedly connected to the truck bucket, and the other sprocket fixed sleeve is arranged at the output end of the forward and reverse motor.

[0008] Preferably, three gears are fixedly installed on the outer side of the second transmission shaft, and the three gears are all meshed with racks. A mounting frame five is fixedly installed between the three racks, and the mounting frame five is slidably connected to the truck bucket. A pneumatic cylinder one and two telescopic rods are fixedly installed between one side of the mounting frame five and the truck bucket.

[0009] Preferably, a plurality of mounting frames three are fixedly mounted on the outer side of the transmission shaft two, the plurality of mounting frames three are all rotatably connected to the mounting shaft, and an L-shaped slot is provided on one side of the plurality of mounting frames three.

[0010] Preferably, the soil-breaking needle control assembly includes a transmission shaft 1, an externally threaded part and two support rings 2 arranged inside the installation groove, the support ring 2 and the externally threaded part are fixedly connected to the transmission shaft 1, the externally threaded part is threadedly connected to the installation shaft, support ring 1 is arranged on one side of the externally threaded part and one side of the two support rings 2, and multiple drag-reducing hemispheres are fixedly installed on one side of the support ring 1.

[0011] Preferably, an air storage bag is fixedly installed on the other side of each of the three support rings, a mounting box is fixedly installed between one end of the air storage bag and the mounting shaft, an inflatable expansion member is arranged on the outside of each of the three air storage air bags, the inflatable expansion member is fixedly installed on the outside of the mounting shaft, the three inflatable expansion members are respectively arranged inside the three mounting shafts, a plurality of air guide tubes are arranged between the mounting box and adjacent inflatable expansion members, the air guide tubes are fixedly inserted on the mounting shaft and fixedly connected to the mounting box.

[0012] Preferably, the soil crushing structure includes a guide box fixedly installed at the bottom of the truck bed, three plate groups fixedly installed on one side of the guide box, and a water inlet pipe fixedly connected to one end of the guide box. A plurality of drainage pipes are fixedly installed on one side of the guide box, and each plate group includes two scrapers, which are fixedly installed on the guide box.

[0013] Preferably, a positioning assembly is installed at the bottom of the truck bed, and the positioning assembly includes a sliding frame, a plurality of mounting frames six passed through the sliding frame, and a positioning cross plate fixedly installed at the bottom of the sliding frame. The plurality of mounting frames six are all fixedly installed at the bottom of the truck bed, and a pneumatic cylinder two is fixedly installed on one side of the sliding frame, and the pneumatic cylinder two is fixedly connected to the truck bed.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present application, three plate groups fixedly installed on one side of the guide box are sleeved onto the outside of the three pressure rollers, and two scrapers in the plate group are arranged at both ends of the water inlet pipe. At this time, the forward and reverse motors are controlled to drive the installation shaft to rotate, so that the multiple pressure rollers rotate. The guide box in contact with the outside of the pressure rollers and the two scrapers arranged at both ends of the pressure rollers crush and clean the drier soil on the outside of the pressure rollers, ensuring that the outside of the pressure rollers is quickly cleaned.

[0015] 2. In the present application, before controlling the forward and reverse motors to work, the water source can be connected to the water inlet pipe fixedly connected at one end of the guide box. Multiple drainage pipes with a small discharge volume are fixedly installed on one side of the guide box. The multiple drainage pipes play a role in pressurizing the water. The multiple drainage pipes spray water to the outside of the pressure roller. Then, the forward and reverse motors are controlled to work to drive the pressure roller to rotate, and the relatively moist soil on the outside of the pressure roller is flushed with air flow to ensure that the outside of the pressure roller is clean.

[0016] 3. In the present application, the operation of the soil-breaking needle control assembly is controlled according to the depth of seed sowing. The external threaded part is operated to rotate by inserting an external hexagonal wrench into the internal part. The rotating external threaded part drives the transmission shaft 1 and the two support rings 2 to rotate. The support ring 1 squeezes the air storage bag. The gas stored in the air storage bag enters the inflatable expansion part through the installation box and multiple air guide tubes. The inflatable expansion part expands and pushes the soil-breaking needle. The staff controls the rotation time of the external threaded part according to the sowing depth, so as to control the distance between the soil-breaking needle and the outer wall of the pressure roller. When the pressure roller is driven to rotate by the forward and reverse motors, chains, two sprockets and installation shaft and other structures, the multiple soil-breaking needles rotate to crush the soil. The pressure roller presses the soil covered on the seeds by the sowing structure and at the same time, crushes the soil less, reduces the resistance to seed germination, and improves the germination yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the pressure roller structure of the present invention; Figure 3 It is a structural schematic diagram of the installation shaft of the present invention; Figure 4 It is a schematic diagram of the partial structure of the pressing roller of the present invention; Figure 5 It is a schematic diagram of the local structure of the installation shaft of the present invention; Figure 6 It is a schematic diagram of the structure of the air storage airbag of the present invention; Figure 7 for Figure 7 A schematic diagram of the structure of part A; Figure 8 It is a structural schematic diagram of the positioning assembly of the present invention; Fig. 9 It is a structural schematic diagram of the soil crushing structure of the present invention.

[0018] Numbers in the figure: 1, sowing equipment; 11, truck bed; 12, connecting frame; 13, mounting frame 1; 14, wheel; 15, soil plow; 16, sowing structure; 2, pressure roller structure; 21, mounting shaft; 22, pressure roller; 23, soil breaking needle; 24, inflatable expansion member; 25, mounting groove; 26, transmission shaft 1; 27, external threaded member; 28, air storage airbag; 29, support ring 1; 210, drag reduction hemisphere; 212, support ring 2; 213, mounting box; 214, air guide pipe; 215, sprocket; 2 16. Forward and reverse motor; 217. Chain; 218. Mounting frame 2; 219. Transmission shaft 2; 220. Mounting frame 3; 221. L-shaped slot; 222. Mounting frame 4; 223. Gear; 224. Rack; 225. Mounting frame 5; 226. Pneumatic cylinder 1; 227. Telescopic rod; 3. Soil crushing structure; 31. Guide box; 32. Water inlet pipe; 33. Drain pipe; 34. Scraper; 4. Positioning assembly; 41. Mounting frame 6; 42. Sliding frame; 43. Positioning cross plate; 44. Pneumatic cylinder 2. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Example: Figure 1-Figure 9 As shown, the present invention provides a technical solution of a pressure roller structure with a soil crushing function for a wheat seeding machine, including a seeding device 1, the seeding device 1 includes a truck bed 11, a pressure roller structure 2 is installed on the truck bed 11, the pressure roller structure 2 includes a mounting shaft 21, a second transmission shaft 219, three pressure rollers 22 fixedly installed on the outside of the mounting shaft 21, a mounting groove 25 formed at one end of the mounting shaft 21, a soil crushing needle control assembly arranged inside the mounting groove 25, and a transmission assembly arranged between the mounting shaft 21 and the second transmission shaft 219, a plurality of soil crushing needles 23 are slidably installed on the pressure roller 22, and a soil crushing structure 3 is arranged on one side of the top of the mounting shaft 21.

[0021] Specifically, a connecting frame 12 is fixedly installed on one side of the truck bed 11, and the connecting frame 12 is used to connect vehicle equipment. A mounting frame 13, a sowing structure 16 and a soil plow 15 are fixedly installed on the bottom of the truck bed 11 from left to right in sequence. A wheel 14 is rotatably installed inside the mounting frame 13. The mounting frame 13 and the wheel 14 cooperate to support the truck bed 11 to ensure the stability of the movement of the truck bed 11; the soil plow 15 is used to groove the land, and the sowing structure 16 is used to sow and cover the seeds with soil. There are three soil plows 15 and three sowing structures 16, and the pressure rollers 22, the sowing structures 16 and the soil plows 15 correspond to each other one by one.

[0022] Specifically, the transmission assembly includes a plurality of mounting brackets 222 rotatably mounted between the outer side of the transmission shaft 219 and the bucket 11, the transmission shaft 219 can rotate but cannot move up and down, and the plurality of mounting brackets 3 220 fixedly mounted on the outer side of the transmission shaft 219 are all rotatably connected to the mounting shaft 21, the mounting shaft 21 can rotate, and when the transmission shaft 219 rotates, the mounting shaft 21 rotates with the transmission shaft 219 as the axis; Three gears 223 are fixedly installed on the outside of the transmission shaft 219, and the three gears 223 are all meshed with racks 224. The mounting frame 5 225 fixedly installed between the three racks 224 is slidably connected with the truck bucket 11. A pneumatic cylinder 1 226 and two telescopic rods 227 are fixedly installed between one side of the mounting frame 5 225 and the truck bucket 11. The telescopic pneumatic cylinder 1 226 and the telescopic rods 227 cooperate to support the mounting frame 5 225 to ensure that the mounting frame 5 225 can move stably. When the pneumatic cylinder 1 226 works and stretches, the mounting frame 5 225 and the rack 224 move, and the gear 223 meshed with the rack 224 rotates. At this time, the transmission shaft 219 rotates under the action of the gear 223, and the transmission shaft 219 drives the mounting shaft 21 to rotate through the mounting frame 3 220, so that the mounting shaft 21 moves toward the ground, so that the pressure roller 22 contacts the ground to level the soil. Similarly, the control pneumatic cylinder 1 226 contracts, the transmission shaft 219 rotates, and the mounting shaft 21 rotates toward the truck bucket 11. When the pressure roller 22 contacts the bottom of the truck bucket 11, the pneumatic cylinder 1 226 stops working. At this time, the L-shaped slot 221 opened on one side of the mounting frame 3 220 is sleeved onto the outer side of the positioning cross plate 43 in the positioning assembly 4. Because the multiple mounting frames 6 41 passed through the sliding frame 42 in the positioning assembly 4 are all fixedly installed at the bottom of the truck bucket 11, the pneumatic cylinder 2 44 fixedly installed on one side of the sliding frame 42 is fixedly connected to the truck bucket 11, so the control pneumatic cylinder 2 44 works and extends, so that the pneumatic cylinder 2 44 pushes the sliding frame 42 and the positioning cross plate 43 fixedly connected to the bottom of the sliding frame 42 to move, so that the positioning cross plate 43 enters the inner side of the L-shaped slot 221, so that the positioning cross plate 43 limits the mounting frame 3 220, ensuring that the mounting frame 3 220 and the mounting shaft 21 stay stably at the bottom of the truck bucket 11.

[0023] The guide box 31 in the soil crushing structure 3 is fixedly installed at the bottom of the truck bed 11. At this time, one side of the bottom of the guide box 31 contacts the outer sides of the three pressure rollers 22. The three plate groups fixedly installed on one side of the guide box 31 are sleeved onto the outer sides of the three pressure rollers 22. Two scrapers 34 in the plate group are arranged at both ends of the water inlet pipe 32. At this time, the forward and reverse motors 216 are controlled to drive the mounting shaft 21 to rotate, so that the multiple pressure rollers 22 rotate. The guide box 31 in contact with the outer sides of the pressure rollers 22 and the two scrapers 34 arranged at both ends of the pressure rollers 22 crush and clean the drier soil on the outer sides of the pressure rollers 22, ensuring that the outer sides of the pressure rollers 22 are quickly cleaned. Most of the wet soil can also be cleaned up by rotating the pressure rollers 22.

[0024] Before controlling the forward and reverse motor 216 to work, the water inlet pipe 32 fixedly connected to one end of the guide box 31 can be connected to a water source, and multiple drainage pipes 33 with a small discharge volume are fixedly installed on one side of the guide box 31. The multiple drainage pipes 33 play a role in increasing the water pressure. The multiple drainage pipes 33 spray water to the outside of the pressure roller 22, and then the forward and reverse motor 216 is controlled to work to drive the pressure roller 22 to rotate, and the relatively moist soil on the outside of the pressure roller 22 is flushed with air flow to ensure that the outside of the pressure roller 22 is clean.

[0025] Specifically, a sprocket 215 is fixedly installed on the outside of one end of the installation shaft 21, and a sprocket 215 is also fixedly installed on the outside of the output end of the forward and reverse motor 216. The two sprockets 215 are meshed and installed inside the chain 217, and the axis of the output end of the sprocket 215 is on the same horizontal line as the axis of the second transmission shaft 219. The above-mentioned installation shaft 21 rotates around the second transmission shaft 219 as the axis without being affected by the transmission assembly composed of the forward and reverse motors 216, the chain 217 and the two sprockets 215.

[0026] The mounting frame 218 fixedly mounted on the outside of the forward and reverse motor 216 is fixedly connected to the truck bucket 11, and the forward and reverse motor 216 is fixedly mounted to control the operation of the forward and reverse motor 216. Under the action of the chain 217 and the sprocket 215, the mounting shaft 21 rotates, and the three pressure rollers 22 fixedly mounted on the outside of the mounting shaft 21 rotate, so that the pressure rollers 22 rotate during the process of leveling the soil as the sowing equipment 1 moves, thereby increasing the soil leveling effect.

[0027] Specifically, before the pressing roller 22 performs the soil leveling function, the soil-breaking needle control assembly can be controlled according to the depth of seed sowing. Since the external threaded member 27 in the soil-breaking needle control assembly is arranged inside the mounting groove 25 formed on the mounting shaft 21, the external threaded member 27 and two support rings 212 are arranged inside the mounting groove 25, and the support ring 212 and the external threaded member 27 are fixedly connected to the transmission shaft 1 26, and the external threaded member 27 is threadedly connected to the mounting shaft 21. The support ring 212 and the support ring 1 29 are relatively long and contact the mounting shaft 21 without being affected by the internal friction of the mounting shaft 21. Influenced by the threaded structure of the outer part, an external hexagonal wrench is inserted into the inner part of the external threaded part 27 to operate the external threaded part 27 to rotate, and the rotating external threaded part 27 drives the transmission shaft 1 26 and the two support rings 212 to rotate, and a support ring 1 29 is provided on one side of the external threaded part 27 and one side of the two support rings 212, and a plurality of drag reducing hemispheres 210 are fixedly installed on one side of the support ring 1 29, and the plurality of drag reducing hemispheres 210 reduce the friction force of the external threaded part 27 or the support ring 212 on the support ring 1 29, and the support ring 1 29 will not affect the rotation of the support ring 212; Because the other sides of the three support rings 29 are all fixedly installed with air bags 28, an installation box 213 is fixedly installed between one end of the air bags 28 and the installation shaft 21, and the three inflatable expansion members 24 arranged on the outside of the three air bags 28 are all fixedly installed on the outside of the installation shaft 21, and the three inflatable expansion members 24 are respectively arranged inside the three installation shafts 21, and a plurality of air guide tubes 214 are arranged between the installation box 213 and the adjacent inflatable expansion members 24. Under the action of the air guide tubes 214 fixedly inserted on the installation shaft 21, the interior of the air bags 28 is connected with the interior of the inflatable expansion members 24, and one end of the plurality of soil crushing needles 23 is fixedly connected to the adjacent inflatable expansion members 24. After the inflatable expansion members 24 are expanded, the soil crushing needles 23 are supported by the inflatable expansion members 24 to move, thereby controlling the distance between the soil crushing needles 23 and the outer wall of the pressure roller 22.

[0028] The external threaded part 27 is rotated to move, so that the support ring 212 driven by the external threaded part 27 and the transmission shaft 26 moves to push the support ring 29, and the support ring 29 squeezes the air storage bag 28. The gas stored in the air storage bag 28 enters the inflatable expansion part 24 through the installation box 213 and multiple air guide tubes 214. The inflatable expansion part 24 expands and pushes the soil crushing needle 23. The staff controls the rotation time of the external threaded part 27 according to the sowing depth, so as to control the distance between the soil crushing needle 23 and the outer wall of the pressure roller 22. When the pressure roller 22 is driven to rotate by the forward and reverse motors 216, the chain 217, the two sprockets 215 and the installation shaft 21, the multiple soil crushing needles 23 rotate to crush the soil. The pressure roller 22 presses the soil that is pushed and covered on the seeds by the sowing structure 16, and at the same time, the soil is less crushed, the resistance to seed germination is reduced, and the germination yield rate is improved.

[0029] After the externally threaded member 27 is rotated to reset, since the air pressure required for the inflation of the inflatable member 24 is greater than the air pressure required for the inflation of the air storage bag 28, the gas inside the inflatable member 24 flows back into the air storage bag 28, and the multiple soil-breaking needles 23 are reset.

[0030] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A pressure roller structure with a soil crushing function for a wheat seeder, comprising a sowing device (1), wherein the sowing device (1) comprises a bucket (11), and is characterized in that: The truck bucket (11) is provided with a pressure roller structure (2), the pressure roller structure (2) comprising a mounting shaft (21), a second transmission shaft (219), three pressure rollers (22) fixedly mounted on the outside of the mounting shaft (21), a mounting groove (25) formed at one end of the mounting shaft (21), a soil crushing needle control assembly arranged inside the mounting groove (25), and a transmission assembly arranged between the mounting shaft (21) and the second transmission shaft (219), a plurality of soil crushing needles (23) being slidably mounted on the pressure roller (22), and a soil crushing structure (3) being arranged on one side of the top of the mounting shaft (21).

2. The pressure roller structure with soil crushing function for a wheat planter according to claim 1, characterized in that: A connecting frame (12) is fixedly mounted on one side of the vehicle bucket (11), and a mounting frame (13), a sowing structure (16) and a soil turning plow (15) are fixedly mounted on the bottom of the vehicle bucket (11) in sequence from left to right, and a wheel (14) is rotatably mounted inside the mounting frame (13).

3. The pressure roller structure with soil crushing function for a wheat planter according to claim 1, characterized in that: The transmission assembly comprises a plurality of mounting frames (222) rotatably mounted between the outer side of the second transmission shaft (219) and the bucket (11), and two sprocket wheels (215), wherein one of the sprocket wheels (215) is fixedly mounted on one end of the outer side of the mounting shaft (21), and chains (217) are meshed and sleeved on the outer sides of the two sprocket wheels (215).

4. The pressure roller structure with soil crushing function for a wheat planter according to claim 3 is characterized in that: A forward and reverse motor (216) is disposed at one end of the second transmission shaft (219); a second mounting frame (218) is provided on the outer fixed sleeve of the forward and reverse motor (216); the second mounting frame (218) is fixedly connected to the bucket (11); and the other sprocket (215) is fixedly sleeved at the output end of the forward and reverse motor (216).

5. The pressure roller structure with soil crushing function for a wheat planter according to claim 1, characterized in that: Three gears (223) are fixedly mounted on the outer side of the second transmission shaft (219), and the three gears (223) are all meshed with racks (224). A mounting frame (225) is fixedly mounted between the three racks (224). The mounting frame (225) is slidably connected to the truck bucket (11), and a pneumatic cylinder (226) and two telescopic rods (227) are fixedly mounted between one side of the mounting frame (225) and the truck bucket (11).

6. The pressure roller structure with soil crushing function for a wheat planter according to claim 1, characterized in that: A plurality of mounting frames three (220) are fixedly mounted on the outer side of the transmission shaft two (219); the plurality of mounting frames three (220) are all rotatably connected to the mounting shaft (21); and one side of the plurality of mounting frames three (220) is provided with an L-shaped slot (221).

7. The pressure roller structure with soil crushing function for a wheat planter according to claim 1, characterized in that: The soil-breaking needle control assembly comprises a transmission shaft 1 (26), an externally threaded member (27) and two support rings 2 (212) arranged inside a mounting groove (25); the support ring 2 (212) and the externally threaded member (27) are both fixedly connected to the transmission shaft 1 (26); the externally threaded member (27) is threadedly connected to the mounting shaft (21); one side of the externally threaded member (27) and one side of the two support rings 2 (212) are both provided with a support ring 1 (29); and one side of the support ring 1 (29) is fixedly mounted with a plurality of drag-reducing hemispheres (210).

8. The pressure roller structure with soil crushing function for a wheat planter according to claim 7, characterized in that: An air storage bag (28) is fixedly mounted on the other side of each of the three support rings (29); an installation box (213) is fixedly mounted between one end of the air storage bag (28) and the installation shaft (21); an inflatable expansion member (24) is arranged on the outside of each of the three air storage bags (28); the inflatable expansion member (24) is fixedly mounted on the outside of the installation shaft (21); the three inflatable expansion members (24) are respectively arranged inside the three installation shafts (21); a plurality of air guide tubes (214) are arranged between the installation box (213) and adjacent inflatable expansion members (24); the air guide tubes (214) are fixedly inserted on the installation shaft (21) and are fixedly connected to the installation box (213).

9. The pressure roller structure with soil crushing function for a wheat planter according to claim 1, characterized in that: The soil crushing structure (3) comprises a guide box (31) fixedly mounted at the bottom of the truck bed (11), three plate groups fixedly mounted on one side of the guide box (31), and a water inlet pipe (32) fixedly connected to one end of the guide box (31); a plurality of drainage pipes (33) are fixedly mounted on one side of the guide box (31); each plate group comprises two scrapers (34); and the scrapers (34) are fixedly mounted on the guide box (31).

10. The pressure roller structure with soil crushing function for a wheat planter according to claim 1, characterized in that: A positioning assembly (4) is installed at the bottom of the truck bucket (11), and the positioning assembly (4) includes a sliding frame (42), a plurality of mounting frames (41) passing through the sliding frame (42), and a positioning cross plate (43) fixedly installed at the bottom of the sliding frame (42), and the plurality of mounting frames (41) are all fixedly installed at the bottom of the truck bucket (11). A pneumatic cylinder (44) is fixedly installed on one side of the sliding frame (42), and the pneumatic cylinder (44) is fixedly connected to the truck bucket (11).

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