Seeder, strip tillage, soil preparation, fertilization and seeding single body and complete machine

Abstract

The seeder comprises a rectification barrel and an overflow pipe, the rectification barrel comprises a side wall and a top wall, the side wall and the top wall form a closed space, the side wall is provided with a feed port and a discharge port, the discharge port is opposite to the top wall, and the side wall supports movement of seeds; the quantity and the speed of gas discharged from the overflow channel can be controlled, so that the pressure in the rectifying barrel is changed, the quantity of materials entering the rectifying barrel is adjusted, and the sowing speed is adjusted. The invention further discloses a strip tillage, soil preparation, fertilization and seeding unit which comprises the seeder, a stubble cutting and straw cleaning device, a rack, a four-rod profiling mechanism, a deep scarification device, a moisture dispersing and ridging device and a pressing device, the stubble cutting and straw cleaning device, the rack, the four-bar profiling mechanism, the deep scarification device, the seeder, the soil moisture dispersing and ridging device and the pressing device are connected in sequence; and the other end of the supporting arm is changed to incline towards the tail end of the rack, so that the machine body is prevented from being subjected to overlarge impact force, and the service life of the machine is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, and in particular to a seeder, a strip tillage, fertilization and sowing unit and a complete machine. Background Art

[0002] When sowing, the existing seeder directly discharges materials such as seeds and fertilizers from the outlet of the seeder. Since the discharge speed of the materials cannot be controlled, the materials are easily splashed everywhere during discharge. In addition, the speed of materials such as seeds and fertilizers when in contact with the ground is too high, and they are easily ejected from the seedling belt area. During sowing, there is also the problem that the amount of material inside the seeder cannot be adjusted according to the sowing needs or the adjustment is inconvenient.

[0003] The existing straw cleaning wheel brackets of strip tillers are mostly installed vertically or with the lower end tilted forward, and the force on the straw cleaning wheel bracket is passive. Under this installation method, the stubble breaking disc installed on the straw cleaning wheel bracket is subjected to the force of the straw cleaning wheel bracket in an oblique downward direction when working. When encountering an emergency situation such as encountering a hard object such as a stone, an oblique upward force will be generated on the stubble breaking disc. The two forces lack a sufficient angle to drive the straw cleaning wheel bracket to lift, and the straw cleaning wheel bracket will be subjected to greater pressure. Therefore, this installation method is difficult to cope with the impact caused by emergencies, has high requirements on the strength of the machine, and shortens the service life of the machine. Summary of the invention

[0004] The object of the present invention is to solve at least one of the technical drawbacks.

[0005] In order to solve the problems mentioned in the background technology and overcome the shortcomings of the prior art, the present invention provides a seeder, including a rectifying barrel and an overflow pipe, the rectifying barrel includes a side wall and a top wall, the side wall and the top wall form a closed space, the side wall is provided with a feed inlet and a discharge outlet, the discharge outlet is opposite to the top wall, and the side wall supports the movement of seeds;

[0006] The overflow pipe has openings at both ends to form an overflow channel. One end of the overflow pipe penetrates the top wall and is inserted into the interior of the rectifying barrel and can move up and down. The up and down movement of the overflow pipe can adjust the speed at which the airflow in the rectifying barrel is discharged from the overflow channel.

[0007] Preferably, a spiral groove extending toward the discharge port is provided on the inner side of the side wall.

[0008] In any of the above schemes, preferably, a pipe sleeve is provided on the top wall, the overflow pipe cooperates with the pipe sleeve, the up and down movement of the overflow pipe is specifically that the overflow pipe moves along the pipe sleeve, and the overflow pipe is stationary relative to the pipe sleeve during sowing.

[0009] The present invention also discloses a strip tillage fertilization sowing unit, comprising any of the above-mentioned seeders, the seeder is installed on the sowing unit, and further comprises a stubble breaking and straw clearing device, a frame, a four-rod profiling mechanism, a deep loosening device, a moisture spreading and ridging device, and a pressing device, wherein the stubble breaking and straw clearing device, the frame, the four-rod profiling mechanism, the deep loosening device, the seeder, the moisture spreading and ridging device, and the pressing device are connected in sequence;

[0010] The end of the frame connected to the trolley is the head end of the frame, and the end of the frame away from the trolley is the end of the frame. The stubble breaking and straw cleaning device includes a stubble breaking wheel, a support arm and a buffer device. The stubble breaking wheel is installed at one end of the support arm, and the other end of the support arm is connected to the buffer device. The buffer device is connected to the head end of the frame. The buffer device includes:

[0011] A connecting rod, a first connecting shaft, a hinge plate, a spring seat, a first spring and a connecting bolt, wherein the connecting bolt is connected in series with the spring seat, the first spring and the hinge plate in sequence, one end of the connecting rod is hinged to the connecting bolt, the other end of the connecting rod is hinged to the other end of the support arm, and the other end of the support arm is hinged to the hinge plate through the first connecting shaft;

[0012] The rack is arranged horizontally, one end of the support arm is inclined toward the end of the rack, and the angle between the support arm and the rack is less than ninety degrees.

[0013] Preferably, it also includes a straw cleaning wheel assembly, which includes a first straw cleaning wheel group, a second straw cleaning wheel group and a straw cleaning wheel connecting plate; the first straw cleaning wheel group is connected to the second straw cleaning wheel group through the straw cleaning wheel connecting plate, a stubble breaking wheel is arranged between the first straw cleaning wheel group and the second straw cleaning wheel group, the first straw cleaning wheel group and the second straw cleaning wheel group are parallel to the support arm, and the first straw cleaning wheel group includes:

[0014] A first straw cleaning wheel bracket and a first straw cleaning wheel, a straw cleaning wheel is arranged at one end of the first straw cleaning wheel, one end of the first straw cleaning wheel is also fixedly connected to the support arm, and the other end of the first straw cleaning wheel is rotatably connected to the connecting shaft.

[0015] Preferably, in any of the above schemes, the four-bar contour mechanism includes an upper connecting rod, a lower connecting rod, a guide rod, a second spring and a connecting device, one end of the upper connecting rod and one end of the lower connecting rod are respectively connected to the connecting device, the other end of the upper connecting rod and the other end of the lower connecting rod are respectively connected to the frame, one end of the guide rod is connected to the frame, and the other end of the guide rod is connected to the lower connecting rod through the second spring.

[0016] Preferably, in any of the above schemes, the deep loosening device includes a shovel handle, a shovel tip and a fertilizer discharge pipe, one end of the shovel handle is connected to the connecting device, and the other end of the shovel handle is respectively connected to the shovel tip and the fertilizer discharge pipe.

[0017] In any of the above schemes, preferably, the soil moisture dispersing and ridge-forming device includes a support frame, a soil gathering plate bracket, a soil gathering plate and a width adjustment bracket, the support frame includes a first support tube, a second support tube and a third support tube connected in sequence, the width adjustment bracket includes a support sleeve and an adjustment tube, the support sleeve is vertically connected to the adjustment tube, one end of the soil gathering plate bracket is inserted into the support sleeve, the other end of the soil gathering plate bracket is connected to the soil gathering plate, the adjustment tube is inserted into the first support tube, a seeder is provided above the second support tube, and a plurality of spiral holes are opened on the support sleeve along a spiral trajectory.

[0018] Preferably, in any of the above schemes, the suppression device includes a suppression rod and a suppression wheel, one end of the suppression rod is inserted into the third support tube, and the other end of the suppression rod is connected to the suppression wheel.

[0019] The invention also discloses a strip tillage, fertilization and sowing machine, which comprises at least two strip tillage, fertilization and sowing units of any one of the above items arranged side by side.

[0020] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0021] 1. In a seeder of the present invention, materials such as seeds and fertilizers can enter from the feed hole of the rectifying barrel under the drive of the airflow, and a part of the airflow driving the materials is discharged from the overflow channel. After losing a part of the driving force of the airflow, the movement speed of the materials will be slowed down, and the slowed-down materials will be discharged from the discharge port along the inner wall of the rectifying barrel, the discharge is stable, and the sowing is more accurate.

[0022] The overflow pipe can move up and down relative to the rectifying barrel. The length of the overflow channel into the rectifying barrel will affect the discharge of the airflow. Changing the position of the overflow channel into the rectifying barrel can control the amount and speed of the air discharged from the overflow channel, thereby changing the pressure in the rectifying barrel, adjusting the amount of material entering the rectifying barrel, and adjusting the spreading speed.

[0023] 2. The strip tillage fertilization and sowing machine of the present invention has the other end of the support arm tilted toward the end of the frame, so that the stubble breaking wheel is changed from pushing forward to pulling forward, and the force applied by the support arm to the stubble breaking disc is changed to an oblique upward pulling force, which is convenient for installing a buffer device on the support arm. When the stubble breaking wheel touches a hard object such as a rock, the support arm and the straw cleaning wheel assembly are lifted upward, and the support arm rotates around the first connecting shaft. Under the pulling of the support arm, the connecting rod will pull the first spring to stretch. When the stubble breaking wheel passes over the obstacle, the first spring retracts and drives the support arm to reset, so as to avoid excessive impact force on the machine body and improve the service life of the machine. The stubble breaking and straw cleaning device is moved to the head end of the frame so that it is not interfered by the four-bar profiling mechanism. No matter how hard the soil is, the stubble breaking disc can penetrate into the soil under the pressure of the machine.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1 The figure is a schematic diagram of the structure of a seeder according to an embodiment of the present invention.

[0027] Figure 2 It is a cross-sectional view of a seeder according to an embodiment of the present invention.

[0028] Figure 3 It is a front view of a strip tillage fertilization and sowing unit according to an embodiment of the present invention.

[0029] Figure 4 It is a rear view of a strip tillage fertilization and sowing unit according to an embodiment of the present invention.

[0030] Figure 5 Schematic diagram of the structure of a stubble breaking and straw clearing device according to an embodiment of the present invention.

[0031] Figure 6 It is a schematic diagram of the matching structure of the buffer device and the hinge plate according to an embodiment of the present invention.

[0032] Figure 7 Schematic diagram of the structure of a buffer device according to an embodiment of the present invention.

[0033] Figure 8 Schematic diagram of the structure of a four-bar profiling mechanism according to an embodiment of the present invention.

[0034] Fig. 9 It is a schematic diagram of the structure of a deep loosening device according to an embodiment of the present invention.

[0035] Fig.10 It is a schematic diagram of the structure of a moisture dispersing and ridging device according to an embodiment of the present invention.

[0036] Fig.11 It is a schematic diagram of the structure of a pressing device and a moisture dispersing and ridging device according to an embodiment of the present invention.

[0037] Among them: 1-rectifier barrel; 2-overflow pipe; 3-side wall; 4-top wall; 5-feeding pipe; 51-feeding port; 6-discharging port; 61-pipe connection; 7-spiral groove; 8-pipe sleeve; 9-stubble breaking and straw cleaning device; 10-frame; 11-four-bar profiling mechanism; 12-deep loosening device; 13-soil loosening and ridging device; 14-pressing device; 15-frame head end; 16-frame end; 17-stubble breaking wheel; 18-support arm; 19-connecting rod; 20-first connecting shaft; 21-hinged plate; 22-spring seat; 23-first spring; 24-connecting bolt; 25-first straw cleaning wheel group; 26-first Second straw-clearing wheel group; 27-straw-clearing wheel connecting plate; 28-first straw-clearing wheel bracket; 29-first straw-clearing wheel; 30-upper connecting rod; 31-lower connecting rod; 32-guide rod; 33-second spring; 34-connecting device; 35-shovel handle; 36-shovel tip; 37-fertilizer discharge pipe; 38-first supporting pipe; 39-second supporting pipe; 40-third supporting pipe; 41-soil-collecting plate bracket; 42-soil-collecting plate; 43-width adjustment support; 44-pressing rod; 45-pressing wheel; 46-spring fixing block; 47-straw-clearing wheel fixing block; 48-first connecting plate group; 49-second connecting plate group; 50-spiral hole. DETAILED DESCRIPTION

[0038] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0039] like Figure 1 and Figure 2 As shown, a seeder according to an embodiment of the present invention includes a straightening barrel 1 and an overflow pipe 2. The straightening barrel 1 includes a side wall 3 and a top wall 4. The side wall 3 and the top wall form a closed space. The side wall 3 has a feed port 51 and a discharge port 6. The discharge port 6 is opposite to the top wall. The side wall 3 supports the movement of seeds.

[0040] The overflow pipe 2 has openings at both ends to form an overflow channel. One end of the overflow pipe 2 penetrates the top wall and is inserted into the interior of the rectifying barrel 1 and can move up and down. The up and down movement of the overflow pipe 2 can adjust the speed at which the airflow in the rectifying barrel 1 is discharged from the overflow channel.

[0041] Optionally, the rectifying barrel 1 includes an upper part of the rectifying barrel 1 and a lower part of the rectifying barrel 1, the upper part of the rectifying barrel 1 is cylindrical, and the lower part of the rectifying barrel 1 is conical, a feed port 51 is arranged on the side wall 3 of the upper part of the rectifying barrel 1, and also includes a feed pipe 5, the feed port 51 is connected to the feed pipe 5, the feed port 51 and the feed pipe 5 are arranged at a position off-center of the rectifying barrel 1, so that the seeds can be close to the inner wall of the rectifying barrel 1 after entering from the feed pipe 5, preferably, the feed pipe 5 is tangent to the cylindrical surface of the upper part of the rectifying barrel 1, the discharge port 6 is arranged at the bottom of the lower part of the rectifying barrel 1, the discharge port 6 is arranged directly below the overflow pipe 2, the center of the overflow pipe 2 is opposite to the center of the discharge port 6, the discharge port 6 is a circular discharge port 6, two circular protrusions are arranged on the outer side wall 3 of the upper part of the rectifying barrel 1, when fixing, it is only necessary to wrap the fixing belt around the two circular protrusions to fix the rectifying barrel 1, which is convenient for fixing.

[0042] Driven by the airflow, materials such as seeds and fertilizers can enter from the feed hole of the rectifying barrel 1, and part of the airflow driving the materials is discharged from the overflow channel, and the other part is discharged from the discharge port 6. The materials enter the rectifying barrel 1, and the airflow inside the rectifying barrel 1 makes the materials stick to the inner wall of the rectifying barrel 1 and rotate. Due to the gravity of the materials, the materials slide down along the inner wall of the rectifying barrel 1 in a spiral trajectory to the discharge port 6 for discharge. A pipe 61 is set at the lower end of the discharge port 6. The pipe 61 is circular to prevent the materials from splashing around at the discharge port 6, so that the airflow flows out of the discharge port 6 evenly, and the stability of the discharge is improved. Since part of the airflow is discharged from the overflow channel, the movement speed of the materials will slow down after losing part of the airflow drive. The decelerated materials are discharged from the discharge port 6 along the inner wall of the rectifying barrel 1. The discharge is stable, the contact speed of the materials with the ground becomes smaller, it is not easy to bounce, and the sowing is more accurate.

[0043] The overflow pipe 2 can move up and down relative to the rectifying barrel 1. The length of the overflow channel that penetrates into the rectifying barrel 1 will affect the discharge of the airflow. The longer the overflow channel penetrates into the rectifying barrel 1, the more difficult it is for the airflow to be discharged from the overflow channel, the pressure in the seeder will increase, and the amount of material entering will decrease. The shorter the overflow barrel channel penetrates into the rectifying barrel 1, the easier it is for the airflow to be discharged from the overflow channel, the pressure in the seeder will decrease, and the amount of material entering will increase. By changing the position of the overflow channel that penetrates into the rectifying barrel 1, the amount and speed of the airflow discharged from the overflow channel can be controlled, and the material sowing speed can be adjusted.

[0044] Specifically, the inner side of the side wall 3 is provided with a spiral groove 7 extending toward the discharge port 6. There are multiple spiral grooves 7, and the width of the spiral groove 7 is greater than the maximum diameter of the material, so that the material can fit tightly in the spiral groove 7 and slide down to the discharge port 6 along the trajectory of the spiral groove 7.

[0045] Furthermore, a pipe sleeve 8 is provided on the top wall, and the overflow pipe 2 cooperates with the pipe sleeve 8. The up and down movement of the overflow pipe 2 is specifically that the overflow pipe 2 moves along the pipe sleeve 8, and the overflow pipe 2 is stationary relative to the pipe sleeve 8 during sowing.

[0046] As a preferred embodiment, the outer wall of the overflow pipe 2 is threadedly matched with the sleeve, and the overflow pipe 2 moves up and down in the sleeve by rotation to adjust the length of the overflow pipe 2 inserted into the rectifying barrel 1. The overflow pipe 2 can also be matched with the sleeve by means of a latch, and a plurality of plug holes are provided on the overflow pipe 2, and a plurality of holes matched with the plug holes are provided on the sleeve, and the overflow pipe 2 is matched with the sleeve by means of a latch. The diameter of the sleeve is larger than the diameter of the overflow pipe 2.

[0047] The working principle of the seeder is as follows: the feed port 51 of the seeder is connected to the seed inlet channel, and the seed inlet channel continuously fills the seeder with a material airflow containing seeds and fertilizers through the feed port 51. Part of the airflow flows out from the overflow channel, reducing the falling speed of the material, and part of the airflow drives the material seeds to spiral down along the inner wall of the rectifier to flow out from the discharge port 6. By controlling the length of the overflow pipe 2 inserted into the rectifier barrel 1, the amount and speed of the airflow discharged from the overflow channel are controlled, and at the same time, the pressure in the barrel is controlled, the material feed amount is adjusted, and the seed or fertilizer sowing speed is controlled. The adjustment is more convenient and simple, and the discharge is more uniform.

[0048] like Figures 3 to 7 As shown, the present invention also discloses a strip tillage fertilization sowing unit, including any of the above-mentioned seeders, which are installed on the sowing unit, and also include a stubble breaking and straw clearing device 9, a frame 10, a four-bar profiling mechanism 11, a deep loosening device 12, a moisture dispersing and ridging device 13 and a suppression device 14. The stubble breaking and straw clearing device 9, the frame 10, the four-bar profiling mechanism 11, the deep loosening device 12, the seeder, the moisture dispersing and ridging device 13 and the suppression device 14 are connected in sequence.

[0049] The end of the frame 10 connected to the trolley is the frame head end 15, and the end of the frame away from the trolley is the frame end 16. The stubble breaking and straw cleaning device 9 includes a stubble breaking wheel 17, a support arm 18 and a buffer device. The stubble breaking wheel 17 is installed at one end of the support arm 18, and the other end of the support arm 18 is connected to the buffer device, which is connected to the frame head end 15. The buffer device includes:

[0050] A connecting rod 19, a first connecting shaft 20, a hinged plate 21, a spring seat 22, a first spring 23 and a connecting bolt 24. The connecting bolt 24 is connected in series with the spring seat 22, the first spring 23 and the hinged plate 21 in sequence. One end of the connecting rod is hinged to the connecting bolt 24, and the other end of the connecting rod 19 is hinged to the other end of the support arm 18. The other end of the support arm 18 is hinged to the hinged plate 21 through the first connecting shaft 20.

[0051] The frame 10 is arranged horizontally, one end of the support arm 18 is inclined toward the end of the frame 16, and the angle between the support arm 18 and the frame is less than ninety degrees.

[0052] The specific articulation mode of the connecting rod 19 and the connecting bolt 24 is that a thread is set at one end of the connecting bolt 24, there are two straw cleaning wheel connecting plates 27, and it also includes a spring fixing block 46, and connecting shafts are set at both ends of the spring fixing block 46. The spring fixing block 46 is set between the two straw cleaning wheel connecting plates 27, and the other end of the support arm 18 is set between the two straw cleaning wheel connecting plates 27. The connecting shafts at both ends of the spring fixing block 46 are respectively connected to a straw cleaning wheel connecting plate 27, and the connecting shaft is rotatably connected to the straw cleaning wheel connecting plate 27. The connecting shaft can rotate on the straw cleaning wheel connecting plate 27, one end of the connecting bolt 24 is threadedly connected to the spring fixing block 46, and the other end of the connecting bolt 24 is connected to the spring seat 22. The degree of compression of the spring is adjusted by adjusting the depth of the connecting bolt 24 screwed into the spring fixing block 46.

[0053] When the stubble breaking disc passes over the obstacle, the spring seat 22 moves to the side away from the connecting rod under the action of the spring, so that the stubble breaking disc is reset and the operation continues.

[0054] The buffer device prevents the support arm 18 from being overstressed, thereby increasing the service life of the implement. Meanwhile, the stubble breaking and straw clearing device 9 is arranged at the head end of the frame, so that it is not affected by the four-bar profiling mechanism 11, and the stubble breaking disc can penetrate into the soil under the pressure of the implement regardless of the hardness of the soil.

[0055] Different types of stubble discs can be flexibly replaced according to different land environments. In general, a round stubble disc with low production cost can be selected; when the land is too hard, a toothed stubble disc can be selected, which has sharp-angled bevel teeth. This type of tooth has low resistance to entering the soil and is easier to cut through hard soil; when there is a large amount of straw on the ground, a notched stubble disc can be selected. This type of stubble disc has a circle of circular notches on its edge, which can reduce the slippage of the straw and achieve effective cutting of the straw.

[0056] The tractor moves forward along the seedling belt, and the stubble-breaking disc will break the crop stubble so that the stubble knife can clean it and sweep the stubble to both sides of the seedling belt. Then the deep tillage device 12 goes deep into the seedling belt after the straw is cleared for deep tillage. At the same time, the deep tillage device 12 can simultaneously sow fertilizer or seeds into the land. The four-bar profiling mechanism 11 can effectively ensure the consistency of the tillage depth. After the deep tillage is completed, the soil gathering disc gathers the soil, and then the suppression device 14 suppresses it, finally forming an ideal seedling belt.

[0057] Specifically, it also includes a straw cleaning wheel assembly, which includes a first straw cleaning wheel group 25, a second straw cleaning wheel group 26 and a straw cleaning wheel connecting plate 27; the first straw cleaning wheel group 25 is connected to the second straw cleaning wheel group 26 through the straw cleaning wheel connecting plate 27, a stubble breaking wheel 17 is arranged between the first straw cleaning wheel group 25 and the second straw cleaning wheel group 26, the first straw cleaning wheel group 25 and the second straw cleaning wheel group 26 are parallel to the support arm 18, and the first straw cleaning wheel group 25 includes:

[0058] The first straw cleaning wheel bracket 28 and the first straw cleaning wheel 29, one end of the first straw cleaning wheel 29 is provided with a straw cleaning wheel, one end of the first straw cleaning wheel 29 is also fixedly connected to the support arm 18, and the other end of the first straw cleaning wheel 29 is rotatably connected to the connecting shaft.

[0059] The second straw cleaning wheel group 26 includes a second straw cleaning wheel and a second straw cleaning wheel bracket. The second straw cleaning wheel is arranged at one end of the second straw cleaning wheel bracket, and the other end of the second straw cleaning wheel bracket is fixedly connected to the straw cleaning wheel connecting plate 27 .

[0060] Specifically, it also includes a central axis, one end of which passes through the center of the support arm 18 and the stubble breaking wheel 17 to connect the support arm 18 with the stubble breaking wheel 17, and the other end of the support axis is connected to the straw cleaning wheel fixing block 47, which is connected to the first straw cleaning wheel bracket 28, and the straw cleaning wheel fixing block 47 fixes the first straw cleaning wheel bracket 28 on the support arm 18. It also includes a straw cleaning wheel fixing shaft, one end of which is fixed to the first straw cleaning wheel 29, and the other end of which extends in the direction of the stubble breaking wheel 17 to block the upper surface of the support arm 18. Through the above structure, when the support arm 18 is lifted, the first straw cleaning wheel bracket 28 is driven to be lifted upward synchronously, and the first straw cleaning wheel bracket 28 is connected to the second straw cleaning wheel bracket through the straw cleaning wheel connecting plate 27, and the first straw cleaning wheel bracket 28 drives the second straw cleaning wheel bracket to rotate synchronously through the straw cleaning wheel connecting plate 27.

[0061] Further, such as Figure 8As shown, the four-bar contour mechanism 11 includes an upper connecting rod 30, a lower connecting rod 31, a guide rod 32, a second spring 33 and a connecting device 34, one end of the upper connecting rod 30 and one end of the lower connecting rod 31 are respectively connected to the connecting device 34, the other end of the upper connecting rod 30 and the other end of the lower connecting rod 31 are respectively connected to the frame end 16, one end of the guide rod 32 is connected to the frame 10, and the other end of the guide rod 32 is connected to the lower connecting rod 31 through the second spring 33.

[0062] The upper connecting rod 30 and the lower connecting rod 31 are hinged to the end of the frame, and the upper connecting rod 30 and the lower connecting rod 31 are hinged to the connecting device 34. The upper connecting rod 30 and the lower connecting rod 31 are arranged in parallel, there are two upper connecting rods 30, and there are also two lower connecting rods 31. It also includes a guide rod 32 shaft 47, one end of the guide rod 32 is connected to the end of the frame, one end of the guide rod 32 can move up and down in the vertical direction relative to the frame, and the other end of the guide rod 32 is rotatably connected to the guide rod shaft, that is, the guide rod 32 can rotate around the guide rod shaft, one end of the guide rod shaft is vertically connected to one lower connecting rod 31, and the other end of the guide rod shaft is vertically connected to another lower connecting rod 31. The second spring 33 is a compression spring.

[0063] Through the above-mentioned structural arrangement, the connecting device 34 can move up and down relative to the frame. One end of the four-bar profiling mechanism 11 is fixedly connected to the frame, and the other end is connected to the connecting device 34. The connecting device 34 can move up and down with the undulation of the ground surface driven by the pressing wheel 45, thereby ensuring the consistency of the tillage depth. A guide rod 32 is fixed between the lower connecting rod 31 and the end 16 of the frame, and then a second spring 33 is installed on the guide rod 32, thereby replacing the original installation method of the pull plate, tension spring, and compression spring, and there is enough space to install a spring with a larger specification, thereby reducing the number of springs, and the second spring 33 is more convenient for disassembly and assembly.

[0064] Specifically, Fig. 9 As shown, the deep tillage device 12 includes a shovel handle 35, a shovel tip 36 and a fertilizer discharge pipe 37. One end of the shovel handle 35 is connected to the connecting device 34, and the other end of the shovel handle 35 is connected to the shovel tip 36 and the fertilizer discharge pipe 37 respectively.

[0065] A plurality of shovel handle 35 holes are provided on the shovel handle 35, and the shovel handle 35 holes are connected to the connection device 34 through studs. The connection device 34 includes two parallel first connection plate groups 48 and two parallel second connection plate groups 49, the second connection plate group 49 is hingedly connected to the four-bar profiling mechanism 11 through the first connection plate group 48, the second connection plate group 49 is hingedly connected to the first connection plate group 48, the second connection plate group 49 includes two parallel second connection plates, and the first connection plate group 48 includes two parallel first connection plates.

[0066] One end of the shovel handle 35 is arranged between the two second connecting plates and connected to the two second connecting plates. The shovel tip 36 is connected to the other end of the shovel handle 35 by bolts. The bolt connection realizes the flexible replacement of the shovel tip 36 to meet different deep plowing needs. At the same time, a fertilizer discharge pipe 37 is welded at the other end of the deep plowing shovel to facilitate fertilization and sowing.

[0067] Further, such as Fig.10 As shown, the soil moisture dispersing and ridging device 13 includes a support frame, a soil gathering disc support 41, a soil gathering disc 42 and a width adjustment support 43. The support frame includes a first support tube 38, a second support tube 39 and a third support tube 40 connected in sequence. The width adjustment support 43 includes a support sleeve and an adjustment tube. The support sleeve is vertically connected to the adjustment tube. One end of the soil gathering disc support 41 is inserted into the support sleeve. The other end of the soil gathering disc support 41 is connected to the soil gathering disc 42. The adjustment tube is inserted into the first support tube 38. A seeder is provided above the second support tube 39. A plurality of spiral holes 50 are provided on the support along a spiral trajectory. A plurality of connecting holes in the vertical direction are provided on the soil gathering disc support 41. The connecting holes cooperate with the spiral holes 50. The soil gathering disc support 41 is fixed to the sleeve by bolts or pins.

[0068] A soil moisture dispersing and ridging device 13 is installed on both sides of the second connecting plate group 49, and the support sleeve is a circular tube. The first support tube 38, the second support tube 39, the third support tube 40 and the adjustment tube are square tubes.

[0069] In a preferred embodiment, there are three connecting holes, and the support sleeve and the soil collecting plate support 41 are fixed by a pin shaft. By adjusting the relative position of the support sleeve and the soil collecting plate support 41, the inclination angle of the soil collecting plate 42 can be changed to meet different soil collecting requirements. The adjusting pipe is provided with a plurality of adjusting pipe holes, and the first supporting pipe 38 is provided with a first supporting pipe 38 hole corresponding to the hole on the adjusting pipe. The adjusting hole and the first supporting pipe 38 hole are connected by a pin shaft. By adjusting the depth of the adjusting pipe inserted into the first supporting pipe 38, the position of the soil collecting plate along the direction of the first supporting pipe 38 is adjusted, thereby improving the flexibility of the machine.

[0070] Optional, such as Fig.11 As shown, the suppressing device 14 includes a suppressing rod 44 and a suppressing wheel 45 . One end of the suppressing rod 44 is inserted into the third support tube 40 , and the other end of the suppressing rod 44 is connected to the suppressing wheel 45 .

[0071] A preferred embodiment is that a material rectifier is installed on the second branch pipe. The seeds or fertilizers can enter the material rectifier from the hole on one side of the rectifier barrel 1 driven by the airflow. Then, the materials will rotate along the inner wall of the rectifier barrel 1 driven by the airflow. The inner wall of the rectifier barrel 1 has a spiral groove 7 spiraling downward, which can assist the seeds or fertilizers to rotate downward. At the same time, the airflow driving the seeds can be discharged through the overflow channel. After the airflow is discharged, the movement speed of the seeds or fertilizers will be slowed down without the driving force of the airflow. The slowed seeds or fertilizers can be transported along the lower channel of the rectifier barrel 1 to the rear side of the deep loosening device 12, and then sown into the soil, avoiding splashing due to excessive material speed, making fertilization or sowing more stable.

[0072] According to the different soil moisture and viscosity, rubber pressure wheel 45, rib pressure wheel 45, and mesh pressure wheel 45 can be used to meet different operation requirements. When the soil moisture and viscosity are too high, rib pressure wheel 45 can be used, when the soil moisture and viscosity are normal, mesh pressure wheel 45 can be used, when the soil is dry and lacks viscosity, rubber pressure wheel 45 can be used, if the rib pressure wheel 45 still has serious soil adhesion, chain pressure wheel 45 can be used, so as to achieve a good pressure effect and prevent soil from adhering to the machine.

[0073] The invention also discloses a strip tillage, fertilization and sowing machine, which comprises at least two strip tillage, fertilization and sowing units arranged side by side.

[0074] The strip tillage fertilization and sowing machine of the present invention changes the other end of the support arm 18 to be inclined toward the frame end 16, so that the stubble breaking wheel 17 is changed from being pushed forward to being pulled forward, and the force applied by the support arm 18 to the stubble breaking disc is changed to an oblique upward pulling force, which is convenient for installing a buffer device on the support arm 18. When the stubble breaking wheel 17 touches a hard object such as a rock, the support arm 18 and the straw cleaning wheel assembly are lifted upward, and the support arm 18 rotates around the connecting shaft. Under the pulling of the support arm 18, the connecting rod 31 will pull the first spring 23 to stretch. When the stubble breaking wheel 17 passes over the obstacle, the first spring 23 retracts and drives the support arm 18 to reset, so as to avoid the machine body from being subjected to excessive impact force and improve the service life of the machine. The stubble breaking and straw cleaning device 9 is moved to the head end of the frame so that it is not interfered by the four-bar profiling mechanism 11. No matter how hard the soil is, the stubble breaking disc can penetrate into the soil under the pressure of the machine.

[0075] Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. Those skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A seeder, characterized in that: It includes a rectifying barrel and an overflow pipe, the rectifying barrel includes a side wall and a top wall, the side wall and the top wall form a closed space, the side wall is provided with a feed inlet and a discharge outlet, the discharge outlet is opposite to the top wall, and the side wall supports the movement of seeds; The overflow pipe is opened at both ends to form an overflow channel. One end of the overflow pipe passes through the top wall and is inserted into the interior of the rectifying barrel and can move up and down. The up and down movement of the overflow pipe can adjust the speed at which the airflow in the rectifying barrel is discharged from the overflow channel.

2. A seeder as claimed in claim 1, characterized in that: The inner side of the side wall is provided with a spiral groove extending toward the discharge port.

3. A seeder as claimed in claim 1, characterized in that: A pipe sleeve is arranged on the top wall, and the overflow pipe cooperates with the pipe sleeve. The up and down movement of the overflow pipe is specifically that the overflow pipe moves along the pipe sleeve, and the overflow pipe is stationary relative to the pipe sleeve during sowing.

4. A strip tillage fertilization and sowing unit, characterized in that: The device comprises a seeder as claimed in any one of claims 1 to 3, wherein the seeder is mounted on the sowing unit, and further comprises a stubble breaking and straw clearing device, a frame, a four-bar profiling mechanism, a deep loosening device, a moisture dispersing and ridging device, and a pressing device, wherein the stubble breaking and straw clearing device, the frame, the four-bar profiling mechanism, the deep loosening device, the seeder, the moisture dispersing and ridging device, and the pressing device are connected in sequence; The end of the frame connected to the trolley is the frame head end, and the end of the frame away from the trolley is the frame tail end. The stubble breaking and straw clearing device includes a stubble breaking wheel, a support arm and a buffer device. The stubble breaking wheel is installed at one end of the support arm, and the other end of the support arm is connected to the buffer device. The buffer device is connected to the head end of the frame. The buffer device includes: A connecting rod, a first connecting shaft, a hinge plate, a spring seat, a first spring and a connecting bolt, wherein the connecting bolt is sequentially connected in series with the spring seat, the first spring and the hinge plate, one end of the connecting rod is hinged to the connecting bolt, the other end of the connecting rod is hinged to the other end of the support arm, and the other end of the support arm is hinged to the hinge plate through the first connecting shaft; The frame is arranged horizontally, one end of the support arm is inclined toward the end of the frame, and the angle between the support arm and the frame is less than ninety degrees.

5. The strip tillage fertilization sowing unit according to claim 4, characterized in that: It also includes a straw cleaning wheel assembly, which includes a first straw cleaning wheel group, a second straw cleaning wheel group and a straw cleaning wheel connecting plate; the first straw cleaning wheel group is connected to the second straw cleaning wheel group through the straw cleaning wheel connecting plate, the stubble breaking wheel is arranged between the first straw cleaning wheel group and the second straw cleaning wheel group, the first straw cleaning wheel group and the second straw cleaning wheel group are parallel to the support arm, and the first straw cleaning wheel group includes: A first straw cleaning wheel bracket and a first straw cleaning wheel, wherein the straw cleaning wheel is arranged at one end of the first straw cleaning wheel, one end of the first straw cleaning wheel is also fixedly connected to the support arm, and the other end of the first straw cleaning wheel is rotatably connected to the connecting shaft.

6. The strip tillage fertilization sowing unit according to claim 4, characterized in that: The four-bar contour mechanism includes an upper connecting rod, a lower connecting rod, a guide rod, a second spring and a connecting device, one end of the upper connecting rod and one end of the lower connecting rod are respectively connected to the connecting device, the other end of the upper connecting rod and the other end of the lower connecting rod are respectively connected to the frame, one end of the guide rod is connected to the frame, and the other end of the guide rod is connected to the lower connecting rod through the second spring.

7. The strip tillage fertilization sowing unit according to claim 6, characterized in that: The deep tillage device comprises a shovel handle, a shovel tip and a fertilizer discharge pipe, one end of the shovel handle is connected to the connecting device, and the other end of the shovel handle is respectively connected to the shovel tip and the fertilizer discharge pipe.

8. The strip tillage fertilization sowing unit according to claim 7, characterized in that: The moisture dispersing and ridge-forming device includes a support frame, a soil gathering plate support, a soil gathering plate and a width adjustment support, the support frame includes a first support tube, a second support tube and a third support tube connected in sequence, the width adjustment support includes a support sleeve and an adjustment tube, the support sleeve is vertically connected to the adjustment tube, one end of the soil gathering plate support is inserted into the support sleeve, the other end of the soil gathering plate support is connected to the soil gathering plate, the adjustment tube is inserted into the first support tube, the seeder is provided above the second support tube, and a plurality of spiral holes are opened on the support sleeve along a spiral trajectory.

9. The strip tillage fertilization sowing unit according to claim 8, characterized in that: The suppression device comprises a suppression rod and a suppression wheel, one end of the suppression rod is inserted into the third support tube, and the other end of the suppression rod is connected to the suppression wheel.

10. A strip tillage, fertilization and sowing machine, comprising at least two strip tillage, fertilization and sowing units as described in any one of claims 4 to 9 arranged side by side.

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