A rice side deep fertilization device

Abstract

The invention discloses a rice side deep fertilization device, comprising a frame, a paddy field wheel, a transmission system, a fertilizer charging device and a fertilizer shooter, wherein the paddy field wheel is mounted on both sides of the frame; the fertilizer charging device and the fertilizer shooter are both mounted on the top of the frame, and the fertilizer shooter corresponds to the position of the fertilizer hole of the fertilizer charging device; the paddy field wheel is respectively connected to the fertilizer charging device and the fertilizer shooter through the transmission system. The paddy field wheel of the invention can drive the fertilizer charging device and the fertilizer shooter to work through the transmission system, and the fertilizer charging device and the fertilizer shooter cooperate to evenly, orderly and stably apply fertilizer to the soil, thereby realizing fixed-point and fixed-depth hole application, and the fertilizer charging device and the fertilizer shooter do not directly contact the soil, thereby avoiding dampness and blockage in the fertilizer discharge process, and improving the fertilization quality and efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of fertilization devices, and more particularly to a rice side deep fertilization device. Background Art

[0002] Direct seeding of rice and simultaneous deep lateral fertilization is a cost-saving and efficiency-enhancing fertilization technology. It is a fertilization method in which chemical fertilizers are applied 4 to 5 cm to the side of rice seeds and 3 to 5 cm deep while direct seeding rice. This can prevent seedling and seed burning, facilitate rice to fully absorb fertilizers, and thus reduce fertilizer pollution to soil and water resources. Compared with small-particle fertilizers, large-particle fertilizers can reduce the occurrence of problems such as excessive volatilization rate and easy moisture adhesion to the fertilization channel. According to the different nutrient content required for rice planting in different soils, the large-particle slow-release fertilizer can be formulated to achieve one fertilization per season on the basis of meeting the nutritional needs of rice, which is in line with the concept of integrating agricultural machinery and agronomy.

[0003] Patent No. ZL202222354438.0, named "Air-assisted side-deep fertilizer applicator for rice", adopts a spiral fertilizer applicator and an improved furrow opener to effectively solve the problem of fertilizer pipe blockage, but the uniformity of fertilization cannot be guaranteed when the forced fertilizer discharge mechanism is in effect; Patent No. ZL202010549808.0, named "A paddy field side-deep fertilization device for increasing rice yield", uses a pneumatic rotary distribution bin to maintain the rotation force to ensure that the fertilizer applicator fertilizes more evenly in a rotating state, but the machine will produce large vibrations when operating in an uneven paddy field and when the travel speed is not fixed, resulting in a decrease in the stability of fertilizer discharge from the bent distribution pipe; Patent No. ZL202010668298.9, named "A synchronous turntable side-deep fertilizer applicator for rice transplanters", is equipped with an alarm device that can alarm in the event of blockage or lack of fertilizer so that manual dredging or fertilizer addition can be carried out immediately to improve fertilization stability. Manual adjustment is still required in the event of a fault, which will reduce work efficiency. In short, the existing side deep fertilization device of the rice direct seeding machine cannot simultaneously meet the operational requirements of uniform fertilization, stable fertilization amount, and no clogging of the fertilizer discharge pipe, which directly affects the yield and quality of rice.

[0004] Therefore, providing an efficient and stable rice side deep fertilization device is a problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] In view of this, the present invention provides a rice side deep fertilization device, which takes into account the uniformity and stability of fertilization when performing side deep fertilization of direct-seeded rice, reduces the blockage of fertilizer discharge pipes, and improves work efficiency.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A rice side deep fertilization device comprises a frame, a paddy field wheel, a transmission system, a fertilizer charging device and a fertilizer shooter, wherein the paddy field wheels are mounted on both sides of the frame; the fertilizer charging device and the fertilizer shooter are both mounted on the top of the frame, and the fertilizer shooter corresponds to the position of the fertilizer hole of the fertilizer charging device; the paddy field wheel is respectively connected to the fertilizer charging device and the fertilizer shooter through the transmission system.

[0008] By adopting the above technical solution, the beneficial effects of the present invention are:

[0009] The paddy field wheel can drive the fertilizer filling device and the fertilizer shooter to work through the transmission system. The fertilizer filling device and the fertilizer shooter cooperate with each other to apply fertilizer into the soil evenly, orderly and stably, realizing fixed-point and fixed-depth hole application. The fertilizer filling device and the fertilizer shooter do not directly contact the soil, thus avoiding moisture and blockage in the fertilizer discharge process, thereby improving the quality and efficiency of fertilization.

[0010] Furthermore, the frame includes a crossbeam frame, four side plates, an H-shaped support plate and a suspension frame, the crossbeam frame has two grooves symmetrically distributed front and rear, the two fertilizer injectors are vertically fixed in the two grooves, the fertilizer filling device is fixed on the crossbeam frame and located between the two grooves; the four side plates are respectively fixed to the bottom of the crossbeam frame and are evenly distributed; the H-shaped support plate is fixed to the bottom of the crossbeam frame and located between the front and rear side plates; the transmission system is installed on the four side plates and the H-shaped support plate; the suspension frame is fixed on the front side of the crossbeam frame.

[0011] The beneficial effect of adopting the above further technical solution is to increase the overall structural stability.

[0012] Further, the transmission system includes a first transmission shaft, a first sprocket, a second transmission shaft, a second sprocket, a first chain, a third sprocket, a third transmission shaft, a fourth sprocket, a fifth sprocket, a second chain, a fourth transmission shaft, a first bevel gear, a second bevel gear, two first cams, a first push rod, two first rollers, a fifth transmission shaft, a sixth sprocket, a third chain, two second cams, a second push rod and two second rollers, and the two ends of the first transmission shaft are respectively rotatably connected with the two vertical plates of the H-shaped support plate; the two paddy field wheels are respectively mounted on the two ends of the first transmission shaft; the first sprocket is mounted at one end of the first transmission shaft; one end of the second transmission shaft is rotatably connected with the vertical plate, and the middle part of the second transmission shaft is rotatably connected with the support column fixed on the horizontal plate of the H-shaped support plate; the first bevel gear is mounted at the other end of the second transmission shaft; the second sprocket is mounted at one end of the second transmission shaft; the first sprocket is connected to the second sprocket through the first chain transmission; the third sprocket is mounted at one end of the second transmission shaft and is spaced apart from the second sprocket; the two ends of the third transmission shaft are respectively connected to the two side plates on the front side The fourth sprocket and the fifth sprocket are respectively mounted at the two ends of the third transmission shaft; the third sprocket is connected to the fourth sprocket through the second chain transmission; the top of the vertically distributed fourth transmission shaft is fixedly connected to the fertilizer filling device, and the second bevel gear is mounted on the bottom of the fourth transmission shaft; the first bevel gear is meshed with the second bevel gear; the two first cams are symmetrically mounted on the third transmission shaft; the middle section of the first push rod is threadedly connected to the fertilizer injector on the front side; the two first rollers are respectively mounted on the two ends of the first push rod, and the two first rollers are respectively in contact with the two first cams; the two ends of the fifth transmission shaft are respectively rotatably connected to the two side plates on the rear side; the sixth sprocket is mounted on one end of the fifth transmission shaft; the fifth sprocket is connected to the sixth sprocket through the third chain transmission; the two second cams are symmetrically mounted on the two ends of the fifth transmission shaft; the middle section of the second push rod is threadedly connected to the fertilizer injector on the rear side; the two second rollers are respectively mounted on the two ends of the second push rod, and the two second rollers are respectively in contact with the two second cams.

[0013] The beneficial effect of adopting the above further technical solution is that the transmission system is compact and efficient transmission is achieved.

[0014] Furthermore, the fertilizer shooter includes a shell, a firing pin guide, a firing pin and a spring, the shell is threadedly connected to the firing pin guide at the bottom thereof; the firing pin guide is fixed in the groove; the firing pin is installed in the shell and is slidably connected to the shell, and the bottom end of the firing pin extends out of the firing pin guide; the two firing pins are threadedly connected to the middle sections of the first push rod and the second push rod respectively; the spring is installed in the shell and is located between the top wall of the shell and the firing pin.

[0015] Furthermore, the firing pin guide rail includes a disc and a cylindrical boss that are coaxially distributed from bottom to top and connected as a whole, the disc is fixedly connected to the groove; the cylindrical boss is threadedly connected to the bottom of the outer shell; the disc and the cylindrical boss have through holes distributed in the vertical direction in the center; the firing pin is inserted into the through hole.

[0016] Furthermore, the firing pin includes a head, a middle part and a needle part which are connected as a whole from top to bottom, and the middle part has a keyway and a threaded through hole; a sliding key is clamped and fixed in the keyway; the outer shell has a vertical sliding hole, and the sliding key is embedded in the sliding hole and slidably connected thereto; the middle sections of the first push rod and the second push rod are both provided with external threads, and the external threads are connected to the corresponding threaded through holes; the bottom end of the spring abuts against the step where the head and the middle part meet; and the needle part passes through the through hole.

[0017] Furthermore, the fertilizer injector also includes a firing pin cap, which is installed at the bottom end of the needle part.

[0018] The beneficial effect of adopting the above further technical solution is to avoid damage to the outer surface of the fertilizer when shooting the granular fertilizer.

[0019] Furthermore, the fertilizer charging device includes a fixed plate, a fertilizer conveying device and a fertilizer box which are spaced apart from bottom to top, the fixed plate is fixed on the frame; the fertilizer conveying device is fixedly connected to the top end of the fourth transmission shaft; and the fertilizer box is fixed on the frame.

[0020] Furthermore, the fertilizer delivery device includes a moving disk, multiple shaft system components, multiple isolation plates, multiple first studs and multiple second studs, the center of the moving disk has a shaft mounting hole, and the top end of the fourth transmission shaft is fixedly connected to the shaft mounting hole; the moving disk has multiple first holes, multiple second holes, multiple arc holes and multiple third holes distributed in sequence from the inside to the outside, and the multiple first holes, multiple second holes, multiple arc holes and multiple third holes are evenly distributed along the circumference of the moving disk; the multiple shaft system components are rotatably connected to the multiple second holes respectively, and each of the shaft system components includes a first screw, a double-headed internally threaded cylindrical pin, a torsion spring, a stopper and a second screw distributed in sequence from top to bottom, and the double-headed internally threaded cylindrical pin is located in the second hole and is rotatably connected thereto; the isolation plate is fixed to the top of the double-headed internally threaded cylindrical pin by the first screw, and is positioned at the arc hole Corresponding; one end of the arc-shaped hole is the fertilization hole, and a soft brush is fixed on the inner wall of the fertilization hole; the bottom end of the striker corresponds to the position of the fertilization hole; the torsion spring and the stopper are fixed to the bottom of the double-headed internally threaded cylindrical pin by the second screw; the stopper comprises a rectangular boss and a flat key-shaped boss connected as one from top to bottom; a shielding strip corresponding to the position of the flat key-shaped boss is fixed on the fixed plate; a drop-in hole corresponding to the fertilization hole is provided on the fixed plate; a plurality of first studs are respectively fixed in a plurality of first holes; a plurality of second studs are respectively fixed in a plurality of third holes and correspond to the position of the isolation plate; the upper end face of the torsion spring is adjacent to the bottom face of the moving plate, and the lower end face of the torsion spring is adjacent to the intersection face of the rectangular boss and the flat key-shaped boss, and the needles at both ends of the torsion spring respectively abut against the first stud and the side face of the rectangular boss.

[0021] Furthermore, the fertilizer box includes two fertilizer box bodies and ribs, the two fertilizer box bodies are connected as a whole through the ribs therebetween, and the two fertilizer box bodies are fixed to the frame through connecting plates respectively; the top of each fertilizer box body is open, and a fertilizer stacking plate is provided at the bottom, and an annular hole is opened on the fertilizer stacking plate; the annular hole corresponds to the position of the fertilization hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 The accompanying drawing is a schematic diagram of the overall structure of a rice side deep fertilization device provided by the present invention;

[0024] Figure 2 The accompanying drawing is a schematic structural diagram of a rack provided by the present invention;

[0025] Figure 3 The accompanying drawing is a schematic diagram of the structure of the transmission system provided by the present invention;

[0026] Figure 4 The accompanying drawing is a schematic diagram of the structure of the fertilizer injector provided by the present invention;

[0027] Figure 5 The accompanying drawing is a schematic diagram of the structure of the firing pin provided by the present invention;

[0028] Figure 6 The accompanying drawing is a schematic structural diagram of the striker guide rail provided by the present invention;

[0029] Figure 7 The accompanying drawing is a schematic diagram of the principle structure of the coordination relationship between the fertilizer injector and the fertilizer charging device provided by the present invention;

[0030] Figure 8 The accompanying drawing is a schematic diagram of the structure of the fertilizer delivery device provided by the present invention;

[0031] Fig. 9 The accompanying drawing is a schematic diagram of the structure of the stopper provided by the present invention;

[0032] Fig.10 The accompanying drawing is a schematic diagram of the structure of the isolation sheet provided by the present invention;

[0033] Fig.11 The accompanying drawing is a structural schematic diagram of the matching relationship between the fixed plate, the shielding strip and the isolation sheet provided by the present invention;

[0034] Fig.12 The accompanying drawing is a schematic structural diagram of a fertilizer box provided by the present invention. DETAILED DESCRIPTION

[0035] 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.

[0036] like Figure 1-12As shown, the embodiment of the present invention discloses a rice side deep fertilization device, including a frame 1, a paddy field wheel 2, a transmission system 3, a fertilizer charging device 4 and a fertilizer shooter 5, wherein the paddy field wheel 2 is mounted on both sides of the frame 1; the fertilizer charging device 4 and the fertilizer shooter 5 are both mounted on the top of the frame 1, and the fertilizer shooter 5 corresponds to the position of the fertilizer hole 6 of the fertilizer charging device 4; the paddy field wheel 2 is respectively connected to the fertilizer charging device 4 and the fertilizer shooter 5 through the transmission system 3. When the paddy field wheel 2 of the present invention moves, it can drive the fertilizer charging device 4 and the fertilizer shooter 5 to work through the transmission system 3, and the fertilizer charging device 4 and the fertilizer shooter 5 cooperate to evenly, orderly and stably apply fertilizer to the soil, realizing fixed-point and fixed-depth hole application, and the fertilizer charging device 4 and the fertilizer shooter 5 do not directly contact the soil, thereby avoiding dampness and blockage in the fertilizer discharge process, and improving the fertilization quality and efficiency.

[0037] Specifically, the frame 1 includes a crossbeam frame 11, four side plates 12, an H-shaped support plate 13 and a suspension frame 14. The crossbeam frame 11 is welded by two completely symmetrical square steels at the front and rear, and is in an I-shape when viewed from above. The crossbeam frame 11 has two grooves 111 that are symmetrically distributed at the front and rear. The two fertilizer injectors 5 are vertically fixed in the two grooves 111, respectively. The fertilizer filling device 4 is fixed on the crossbeam frame 11 and is located between the two grooves 111; the four side plates 12 are respectively fixed at the bottom of the crossbeam frame 11 and are evenly distributed. In this embodiment, the side plates 12 are welded to the crossbeam frame 11; the H-shaped support plate 13 is fixed at the bottom of the crossbeam frame 11 and is located between the front and rear side plates 12; the transmission system 3 is installed on the four side plates 12 and the H-shaped support plate 13; the paddy field wheel 2 is installed on the H-shaped support plate 13; and the suspension frame 14 is fixed on the front side of the crossbeam frame 11.

[0038] Specifically, the transmission system 3 includes a first transmission shaft 31, a first sprocket, a second transmission shaft 32, a second sprocket, a first chain 33, a third sprocket, a third transmission shaft 34, a fourth sprocket, a fifth sprocket, a second chain 35, a fourth transmission shaft 36, a first bevel gear 37, a second bevel gear 38, two first cams 39, a first push rod 310, two first rollers 311, a fifth transmission shaft 312, a sixth sprocket, a third chain 313, two second cams 314, a second push rod 315 and two second rollers 316, and both ends of the first transmission shaft 31 are respectively rotatably connected to the two vertical plates of the H-shaped support plate 13; the two paddy field wheels 2 are respectively installed at both ends of the first transmission shaft 31; the first sprocket is installed at the second end of the first sprocket. One end of a transmission shaft 31; one end of a second transmission shaft 32 is rotationally connected to the vertical plate, and the middle part of the second transmission shaft 32 is rotationally connected to the support column fixed on the horizontal plate of the H-shaped support plate 13; the first bevel gear 37 is installed at the other end of the second transmission shaft 32; the second sprocket is installed at one end of the second transmission shaft 32; the first sprocket is transmission-connected to the second sprocket through the first chain 33; the third sprocket is installed at one end of the second transmission shaft 32 and is spaced apart from the second sprocket; the two ends of the third transmission shaft 34 are rotationally connected to the two side plates 12 on the front side; the fourth sprocket and the fifth sprocket are installed at the two ends of the third transmission shaft 34 respectively; the third sprocket is transmission-connected to the fourth sprocket through the second chain 35; the fourth transmission shaft 34 is vertically distributed. The top end of the shaft 36 is fixedly connected to the fertilizer charging device 4, and the second bevel gear 38 is installed at the bottom end of the fourth transmission shaft 36; the first bevel gear 37 is meshed with the second bevel gear 38 to form a gear transmission, which converts the horizontal rotation of the second transmission shaft 32 into the vertical rotation of the fourth transmission shaft 36; the two first cams 39 are symmetrically installed on the third transmission shaft 34; the middle section of the first push rod 310 is threadedly connected to the fertilizer injector 5 on the front side; the two first rollers 311 are respectively installed at the two ends of the first push rod 310, and the two first rollers 311 are respectively in contact with the two first cams 39, forming a high-pair cam transmission; the two ends of the fifth transmission shaft 312 are respectively rotatably connected to the two side plates 12 on the rear side, and the fifth transmission shaft 312 is connected to the The third transmission shaft 34 is located on the same horizontal plane, above the second transmission shaft 32 and symmetrical about the second transmission shaft 32; the sixth sprocket is installed at one end of the fifth transmission shaft 312; the fifth sprocket and the sixth sprocket are connected by the third chain 313; the two second cams 314 are symmetrically installed at both ends of the fifth transmission shaft 312; the middle section of the second push rod 315 is threadedly connected to the fertilizer injector 5 on the rear side, and the first push rod 310 and the second push rod 315 are located above the plane where the third transmission shaft 34 and the fifth transmission shaft 312 are located; the two second rollers 316 are installed at both ends of the second push rod 315, and the two second rollers 316 are respectively in contact with the two second cams 314, forming a high-pair cam transmission.

[0039] Specifically, the fertilizer injector 5 includes a shell 51, a firing pin guide 52, a firing pin 53 and a spring 54. The shell 51 is threadedly connected to the firing pin guide 52 at the bottom thereof; the firing pin guide 52 is fixed in the groove 111; the firing pin 53 is installed in the shell 51 and is slidably connected thereto to form a cylindrical pair, and the bottom end of the firing pin 53 extends out of the firing pin guide 52, so that the firing pin 53 can move up and down in the firing pin guide 52; the two firing pins 53 are respectively threadedly connected to the middle sections of the first push rod 310 and the second push rod 315; the spring 54 is installed in the shell 51 and is located between the top wall of the shell 51 and the firing pin 53.

[0040] Among them, the striker guide rail 52 includes a disc 521 and a cylindrical boss 522 which are coaxially distributed from bottom to top and connected as a whole, the disc 521 is fixedly connected to the groove 111; the cylindrical boss 522 is threadedly connected to the bottom of the shell 51; the disc 521 and the cylindrical boss 522 have a through hole 5211 distributed in the vertical direction in the center; the striker 53 is inserted in the through hole 5211.

[0041] The striker 53 includes a head 531, a middle part 532 and a needle part 533 connected as a whole from top to bottom, the middle part 532 has a keyway 5321 and a threaded through hole 5322; a sliding key 55 is fixed in the keyway 5321; the housing 51 has a vertical sliding hole 511, and the sliding key 55 is embedded in the sliding hole 511 and slidably connected therewith, that is, the sliding key 55 and the sliding hole 511 form a moving pair, which limits the rotation of the striker 53 relative to the housing 51 and the striker guide rail 52, and the bottom side of the sliding key 55 preferentially contacts the bottom surface of the sliding hole 511 when the striker moves to the lowest position. The first push rod 310 and the second push rod 315 are both provided with external threads in the middle sections, which are connected with the corresponding threaded through holes 5322. The bottom end of the spring 54 abuts against the step where the head 531 and the middle section 532 meet. During the upward movement of the striker 53, the spring 54 is compressed by the step and the top surface of the inner wall of the shell 51 to store force for the striker 53 to move downward in the fertilizer injection stage. The needle portion 533 passes through the through hole 5211.

[0042] In order to avoid damaging the outer surface of the fertilizer when shooting the granular fertilizer, the fertilizer shooter 5 also includes a striker cap 56, which is installed at the bottom end of the needle portion 533. In this embodiment, the striker cap 56 is made of flexible plastic material.

[0043] Specifically, the fertilizer charging device 4 includes a fixed plate 41, a fertilizer conveying device 42 and a fertilizer box 43 which are spaced apart from each other from bottom to top. The fixed plate 41 is fixed on the frame 1; the fertilizer conveying device 42 is fixedly connected to the top end of the fourth transmission shaft 36; and the fertilizer box 43 is fixed on the frame 1.

[0044] The fertilizer delivery device 42 includes a moving disk 421, a plurality of shaft system components 422, a plurality of isolation sheets 423, a plurality of first studs 424 and a plurality of second studs 425. In this embodiment, the distance between the top surface of the fixed disk 41 and the bottom surface of the moving disk 421 is 10 to 15 mm, and the distance between the top surface of the moving disk 421 and the bottom surface of the fertilizer box 43 is 0 to 5 mm. The center of the moving disk 421 has a shaft mounting hole 4211, and the top end of the fourth transmission shaft 36 is fixedly connected to the shaft mounting hole 4211, and the two rely on a key to transmit power; the moving disk 421 has a plurality of first holes 4212, a plurality of second holes 4214, and a plurality of second holes 4215, which are sequentially distributed from the inside to the outside. 213, a plurality of arc holes 4214 and a plurality of third holes 4215, and the plurality of first holes 4212, the plurality of second holes 4213, the plurality of arc holes 4214 and the plurality of third holes 4215 are uniformly distributed along the circumference of the moving disk 421; a plurality of shaft system components 422 are rotatably connected to the plurality of second holes 4213, respectively, and each shaft system component 422 includes a first screw 4221, a double-headed internally threaded cylindrical pin 4222, a torsion spring 4223, a stopper 4224 and a second screw 4225, which are sequentially distributed from top to bottom, and the double-headed internally threaded cylindrical pin 4222 is located in the second hole 4213 and is rotatably connected thereto The length of the double-headed internally threaded cylindrical pin 4222 is greater than the thickness of the moving disk 421, and the middle part of the double-headed internally threaded cylindrical pin 4222 and the second hole 4213 form a cylindrical pair; the isolation plate 423 is fixed to the top of the double-headed internally threaded cylindrical pin 4222 by the first screw 4221, and corresponds to the position of the arc hole 4214; one end of the arc hole 4214 is a fertilizer hole 6, which is fan-shaped, and a soft brush 7 is fixed on the inner wall of the fertilizer hole 6; the bottom end of the striker 53 corresponds to the position of the fertilizer hole 6; the torsion spring 4223 and the stopper 4224 are fixed to the bottom of the double-headed internally threaded cylindrical pin 4222 by the second screw 4225, and the double-headed internally threaded cylindrical pin 4222 is fixed to the bottom of the double-headed internally threaded cylindrical pin 4222 by the second screw 4225. The lower end of the cylindrical pin 4222 passes through the inner diameter surface of the torsion spring 4223, and the lower end surface is inserted into the stepped hole of the flat key-shaped boss 42242; the stopper 4224 includes a rectangular boss 42241 and a flat key-shaped boss 42242 connected as a whole from top to bottom; a shielding strip 8 corresponding to the position of the flat key-shaped boss 42242 is fixed on the fixed plate 41; a drop-in hole 411 corresponding to the fertilization hole 6 is opened on the fixed plate 41; a plurality of first studs 424 are respectively fixed in a plurality of first holes 4212; a plurality of second studs 425 are respectively fixed in a plurality of third holes 4215 and correspond to the position of the isolation sheet 423;The upper end surface of the torsion spring 4223 is adjacent to the bottom surface of the movable disk 421, and the lower end surface of the torsion spring 4223 is adjacent to the intersection surface of the rectangular boss 42241 and the flat key-shaped boss 42242. The needles at both ends of the torsion spring 4223 are respectively in contact with the first stud 424 and the side surface of the rectangular boss 42241. When the side surface of the flat key-shaped boss 42242 and the side surface of the shielding strip 8 on the fixed disk 41 are squeezed against each other, the first stud 424 and the side surface of the rectangular boss 42241 jointly compress the torsion spring 4223. After the stopper 4224 is completely separated from the shielding strip 8, the second stud 425 collides with the side surface of the isolation plate 423 during the process of the torsion spring 4223 driving the stopper 4224 to rebound, thereby limiting the rotation angle of the isolation plate 423 and allowing it to quickly return to the position of covering the arc hole 4214. ;

[0045] Specifically, the cross-section of the fertilizer box 43 is a double fan-shaped with two sharp corners cut off. The fertilizer box 43 includes two fertilizer box bodies 431 and ribs 432. The two fertilizer box bodies 431 are connected as a whole through the ribs 432 therebetween, and the two fertilizer box bodies 431 are fixed to the frame 1 through connecting plates respectively; the top of each fertilizer box body 431 is open, and a fertilizer stacking plate 4311 is provided at the bottom, and an annular hole 43111 is provided on the fertilizer stacking plate 4311; the annular hole 43111 corresponds to the position of the fertilization hole 6, and fertilizer is poured in through the top opening of the fertilizer box body 431 and stacked on the stacking plate 4311. The inclination of the stacking plate 4311 is slightly larger than the natural repose angle of the granular fertilizer, ensuring that the fertilizer can slide smoothly through the annular hole 43111 to the fertilization hole 6.

[0046] The transmission system 3 includes a first transmission shaft 31, a first sprocket, a second transmission shaft 32, a second sprocket, a first chain 33, a third sprocket, a third transmission shaft 34, a fourth sprocket, a fifth sprocket, a second chain 35, a fourth transmission shaft 36, a first bevel gear 37, a second bevel gear 38, two first cams 39, a first push rod 310, two first rollers 311, a fifth transmission shaft 312, a sixth sprocket, a third chain 313, two second cams 314, a second push rod 315 and two second rollers 316.

[0047] Working principle of the present invention:

[0048] First, connect the suspension frame 14 to the tail of the direct seeding machine, and the power device of the direct seeding machine pulls the entire frame 1 forward. The paddy field wheel 2 that is in direct contact with the paddy field ground rotates under the gravity and traction of the frame 1 itself, and the paddy field wheel 2 transmits power to the first transmission shaft 31. The first transmission shaft 31 is connected to the second transmission shaft 32 through a chain drive. The power of the second transmission shaft 32 is divided into two paths. One path is to convert the horizontal rotation of the second transmission shaft 32 into the vertical rotation of the fourth transmission shaft 36 through the engagement of the first bevel gear 37 and the second bevel gear 38, and then transmits the torque to the moving plate 421. The moving plate 421 rotates with the fourth transmission shaft 36. When the fertilization hole 6 rotates to correspond to the annular hole 43111 of the fertilizer box 43, the fertilizer The fertilizer will naturally slide down and accumulate on the soft brush 7 in the fertilization hole. The surface of the soft brush 7 in the fertilization hole 6 is slightly lower than the isolation plate 423. The isolation plate 423 partially blocks the annular hole 43111 in the fertilizer box, so that only one large granular fertilizer falls into each fertilization hole 6 at a time, and the large granular fertilizer accumulated at the bottom of the fertilizer box 43 outside the fertilization hole 6 needs to wait for the arrival of the next fertilization hole 6. When the fertilization hole 6 into which the granular fertilizer has fallen turns to the side of the flat key-shaped boss 42242 and contacts the shielding strip 8, one end of the torsion spring 4223 begins to squeeze against the first stud 424, and the other end acts on the side of the rectangular boss 42241 to drive the shaft system assembly 422 in the second hole 4213 to rotate counterclockwise around the hole relative to the moving disk 421. Fig.11 As shown by the middle arrow, the arc hole 4214 is gradually exposed, so that the striker 53 can move up and down in the arc hole 4214 without blocking the rotation of the moving plate 421. The power of the second transmission shaft 32 is transmitted to the third transmission shaft 34 through the second chain 35. The two first cams 39 fixedly connected to the third transmission shaft 34 rotate therewith, pushing the first roller 311, the first push rod 310 and the striker 53 of the front fertilizer injector 5 to move up and down. When the granular fertilizer in the fertilization hole 6 is about to move to the bottom of the striker cap 56, the housing 51 of the fertilizer injector 5 is fixed, the first roller 311 is pushed up to the top by the first cam 39, and the spring 54 is compressed. At this time, the arc hole 4214 begins to gradually open due to the rotation of the isolation plate 423. Figure 7 As shown by the solid line; when the granular fertilizer is transported to the bottom of the fertilizer shooter 5, the first roller 311 passes the far rest point of the first cam 39 and then drops. Under the action of the elastic force accumulated by the spring 54, the first push rod 310 is driven to guide the striker 53 to rapidly move downward to impact the fertilizer to achieve the fertilizer shooting movement, as shown in FIG. Figure 7As shown by the dotted line, the working principle of the rear fertilizer injector 5 is the same, which will not be described here. After a single fertilizer injection process is completed, the first roller 311 starts from the near rest point of the first cam 39, that is, the lowest point of the first roller 311 itself, and slowly retracts under the support of the first cam 39, driving the first push rod 310 and the striker 53 to rise and retract. When the striker cap 56 completely leaves the upper plane of the isolation plate 423, the block 4224 is completely separated from the shielding bar 8, and the torsion spring 4223 rebounds under the action of its own restoring force, driving the isolation plate 423 to rotate clockwise. At the same time, due to the presence of the second stud 425, the rotation angle of the isolation plate 423 is limited, and the arc hole 4214 can be quickly completely blocked, so that the fertilization hole 6 can be fully replenished and wait for the next fertilizer filling.

[0049] Of course, the above is the working process of a single fertilization hole 6 and a single fertilizer shooter 5. Under the action of the third chain 313, the fifth transmission shaft 312 can also rotate, driving the second cam 314, the second roller 316 and the fertilizer shooter 5 located on the rear side to work, so that the two fertilizer shooters 5 work half a cycle apart, that is, when one fertilizer shooter 5 completes the fertilizer shooting process and the striker 53 is at the lowest end, the spring 54 of the other fertilizer shooter 5 is compressed to the limit position and waits for release. During field operations, the present invention can be connected to a single direct seeding machine for single-row fertilization, or multiple bodies can be connected in parallel for multi-row fertilization to improve work efficiency.

[0050] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0051] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rice side deep fertilization device, It is characterized in that It comprises a frame, a paddy field wheel, a transmission system, a fertilizer charging device and a fertilizer injector, wherein the paddy field wheels are mounted on both sides of the frame; the fertilizer charging device and the fertilizer injector are both mounted on the top of the frame, and the fertilizer injector corresponds to the position of the fertilizer hole of the fertilizer charging device; the paddy field wheel is respectively connected to the fertilizer charging device and the fertilizer injector through the transmission system; The frame includes a crossbeam frame, four side plates, an H-shaped support plate and a suspension frame. The crossbeam frame has two grooves symmetrically distributed front and back. The two fertilizer injectors are respectively vertically fixed in the two grooves. The fertilizer filling device is fixed on the crossbeam frame and located between the two grooves. The four side plates are respectively fixed to the bottom of the crossbeam frame and are evenly distributed. The H-shaped support plate is fixed to the bottom of the crossbeam frame and is located between the front and rear side plates. The transmission system is installed on the four side plates and the H-shaped support plate. The suspension frame is fixed to the front side of the crossbeam frame. The transmission system comprises a first transmission shaft, a first sprocket, a second transmission shaft, a second sprocket, a first chain, a third sprocket, a third transmission shaft, a fourth sprocket, a fifth sprocket, a second chain, a fourth transmission shaft, a first bevel gear, a second bevel gear, two first cams, a first push rod, two first rollers, a fifth transmission shaft, a sixth sprocket, a third chain, two second cams, a second push rod and two second rollers, wherein two ends of the first transmission shaft are respectively rotatably connected to two vertical plates of the H-shaped support plate; and the two paddy field wheels are respectively mounted at two ends of the first transmission shaft; The first sprocket is mounted on one end of the first transmission shaft; one end of the second transmission shaft is rotatably connected to the vertical plate, and the middle portion of the second transmission shaft is rotatably connected to a support column fixed to a horizontal plate of the H-shaped support plate; the first bevel gear is mounted on the other end of the second transmission shaft; The second sprocket is mounted on one end of the second transmission shaft; The first sprocket is connected to the second sprocket through the first chain transmission; the third sprocket is installed at one end of the second transmission shaft and is spaced apart from the second sprocket; the two ends of the third transmission shaft are respectively rotatably connected to the two side plates on the front side; the fourth sprocket and the fifth sprocket are respectively installed at the two ends of the third transmission shaft; the third sprocket is connected to the fourth sprocket through the second chain transmission; the top end of the vertically distributed fourth transmission shaft is fixedly connected to the fertilizer filling device, and the second bevel gear is installed at the bottom end of the fourth transmission shaft; the first bevel gear is meshed with the second bevel gear; the two first cams are symmetrically installed on the third transmission shaft; the The middle section of a push rod is threadedly connected to the fertilizer injector on the front side; the two first rollers are respectively mounted on the two ends of the first push rod, and the two first rollers are respectively in contact with the two first cams; the two ends of the fifth transmission shaft are respectively rotatably connected to the two side plates on the rear side; the sixth sprocket is mounted on one end of the fifth transmission shaft; the fifth sprocket is connected to the sixth sprocket through the third chain transmission; the two second cams are symmetrically mounted on the two ends of the fifth transmission shaft; the middle section of the second push rod is threadedly connected to the fertilizer injector on the rear side; the two second rollers are respectively mounted on the two ends of the second push rod, and the two second rollers are respectively in contact with the two second cams; The fertilizer shooter includes a shell, a firing pin guide, a firing pin and a spring. The shell is threadedly connected to the firing pin guide at the bottom thereof; the firing pin guide is fixed in the groove; the firing pin is installed in the shell and is slidably connected to the shell, and the bottom end of the firing pin extends out of the firing pin guide; the two firing pins are threadedly connected to the middle sections of the first push rod and the second push rod respectively; the spring is installed in the shell and is located between the top wall of the shell and the firing pin.

2. A rice side deep fertilization device according to claim 1, It is characterized in that The firing pin guide rail includes a disc and a cylindrical boss which are coaxially distributed from bottom to top and connected as a whole, wherein the disc is fixedly connected to the groove; the cylindrical boss is threadedly connected to the bottom of the outer shell; the centers of the disc and the cylindrical boss have through holes distributed in the vertical direction; the firing pin is inserted into the through hole.

3. A rice side deep fertilization device according to claim 2, It is characterized in that The firing pin includes a head, a middle part and a needle part which are connected as a whole from top to bottom, and the middle part has a keyway and a threaded through hole; a sliding key is clamped and fixed in the keyway; the outer shell has a vertical sliding hole, and the sliding key is embedded in the sliding hole and slidably connected thereto; the middle sections of the first push rod and the second push rod are both provided with external threads, and the external threads are connected to the corresponding threaded through holes; the bottom end of the spring abuts against the step where the head and the middle part meet; and the needle part passes through the through hole.

4. A rice side deep fertilization device according to claim 3, It is characterized in that The fertilizer injector also includes a striker cap, which is mounted on the bottom end of the needle portion.

5. A rice side deep fertilization device according to claim 1, It is characterized in that The fertilizer charging device comprises a fixed plate, a fertilizer conveying device and a fertilizer box which are spaced apart from bottom to top, the fixed plate is fixed on the frame; the fertilizer conveying device is fixedly connected to the top end of the fourth transmission shaft; and the fertilizer box is fixed on the frame.

6. A rice side deep fertilization device according to claim 5, It is characterized in that The fertilizer delivery device includes a moving disk, a plurality of shaft system components, a plurality of isolation plates, a plurality of first studs and a plurality of second studs, the center of the moving disk has a shaft mounting hole, and the top end of the fourth transmission shaft is fixedly connected to the shaft mounting hole; the moving disk has a plurality of first holes, a plurality of second holes, a plurality of arc holes and a plurality of third holes distributed in sequence from the inside to the outside, and the plurality of the first holes, the plurality of the second holes, the plurality of the arc holes and the plurality of the third holes are uniformly distributed along the circumference of the moving disk; the plurality of shaft system components are rotatably connected to the plurality of the second holes, respectively, and each of the shaft system components includes a first screw, a double-headed internally threaded cylindrical pin, a torsion spring, a stopper and a second screw distributed in sequence from top to bottom, the double-headed internally threaded cylindrical pin is located in the second hole and is rotatably connected thereto; the isolation plate is fixed to the top of the double-headed internally threaded cylindrical pin by the first screw, and is relative to the position of the arc hole The fertilization hole should be arranged at one end of the arc hole, and a soft brush is fixed on the inner wall of the fertilization hole; the bottom end of the striker corresponds to the position of the fertilization hole; the torsion spring and the stopper are fixed to the bottom of the double-headed internally threaded cylindrical pin by the second screw; the stopper comprises a rectangular boss and a flat key-shaped boss connected as one from top to bottom; a shielding strip corresponding to the position of the flat key-shaped boss is fixed on the fixed plate; a drop-in hole corresponding to the fertilization hole is provided on the fixed plate; a plurality of the first studs are respectively fixed in a plurality of the first holes; a plurality of the second studs are respectively fixed in a plurality of the third holes and correspond to the position of the isolation plate; the upper end face of the torsion spring is close to the bottom face of the moving plate, and the lower end face of the torsion spring is close to the intersection face of the rectangular boss and the flat key-shaped boss, and the needles at both ends of the torsion spring respectively abut against the first stud and the side face of the rectangular boss.

7. A rice side deep fertilization device according to claim 6, It is characterized in that The fertilizer box includes two fertilizer box bodies and ribs, the two fertilizer box bodies are connected as a whole through the ribs therebetween, and the two fertilizer box bodies are fixed to the frame through connecting plates respectively; the top of each fertilizer box body is open, and a fertilizer accumulation plate is provided at the bottom, and an annular hole is opened on the fertilizer accumulation plate; the annular hole corresponds to the position of the fertilization hole.

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