Self-propelled fertilizer applicator with variable rate fertilization function

Abstract

The invention belongs to the field of agricultural fertilization machinery, and provides a self-propelled fertilizer applicator with a variable fertilization function, the self-propelled fertilizer applicator comprises a material mixing cylinder, the bottom end of the material mixing cylinder is connected with a spraying assembly; the dissolving mechanism is arranged in the mixing barrel; the dissolving mechanism comprises a mixing assembly and an anti-settling assembly, the anti-settling assembly is rotationally arranged in an inner cavity of the bottom of the mixing barrel, and the mixing assembly is located above the anti-settling assembly; linkage between the mixing assembly and the anti-settling assembly is realized through meshing fit between a first worm and a first worm gear; the material crushing barrel is located above the material mixing barrel, and a variable fertilizer falling mechanism is arranged at a discharging opening in the bottom of the material crushing barrel. The material crushing mechanism is adopted to fully crush solid fertilizer in the material crushing barrel so as to ensure the fineness of the fertilizer, the variable fertilizer falling mechanism at the bottom end of the material crushing barrel is used for controlling the fertilizer amount, and the dissolving mechanism is used for fully stirring water and fertilizer in the material mixing barrel; therefore, the preparation time before water and fertilizer integrated irrigation is shortened, and water and fertilizer are uniformly mixed.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural fertilization machinery, and in particular relates to a self-propelled fertilizer spreader with a variable fertilization function. Background Art

[0002] Integrated water-fertilizer irrigation is an agricultural technology that combines irrigation with fertilization. It can effectively improve the utilization efficiency of water resources and the yield and quality of crops.

[0003] At present, it is not convenient to use large-scale fertilization equipment for fertilization operations in a limited range of soil planting environments. Most of them rely on manual operation, that is, manually carrying a container containing liquid organic fertilizer, and then manually operating the relevant fertilization structure to spray the liquid organic fertilizer on the land. This fertilization method requires a lot of manpower and has a relatively low fertilization efficiency. At the same time, traditional seeders lack flexibility in fertilization, and often cannot accurately control fertilization according to soil conditions and crop needs, resulting in insufficient or excessive fertilization, which affects the growth and yield of crops. In addition, existing water-fertilizer integrated machines generally use liquid fertilizer for fertilization. Some models can mix solid fertilizer into liquid fertilizer. However, the existing water-fertilizer integrated machines directly mix and stir solid fertilizer and water. The solid fertilizer and water are mixed and dissolved at a slow speed, and it takes a long time to dissolve. At the same time, it is not easy to control the ratio of solid fertilizer to water. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide a self-propelled fertilizer spreader with a variable fertilization function, aiming to solve the technical problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions.

[0006] The embodiment of the present invention provides a self-propelled fertilizer spreader with a variable fertilization function, comprising: A mixing cylinder, the bottom end of which is connected to the spraying assembly; The dissolving mechanism is arranged inside the mixing barrel; the dissolving mechanism comprises a mixing component and an anti-sinking component, the anti-sinking component is rotatably arranged in the bottom inner cavity of the mixing barrel, and the mixing component is located above the anti-sinking component; the mixing component and the anti-sinking component are linked by the meshing cooperation between the first worm and the first worm wheel; A crushing barrel, which is located above the mixing barrel, and a variable fertilizer delivery mechanism is arranged at the bottom discharge port of the crushing barrel, the variable fertilizer delivery mechanism comprises a limit cavity, a movable disk, a rack, a fifth gear and a sleeve, the limit cavity is connected to the fixed frame, a circular movable disk is slidably installed in the limit cavity, a rack is fixedly installed at the bottom end of the movable disk, the rack is meshed with the fifth gear, and a sleeve is fixed on the inner side of the fifth gear; a crushing assembly is arranged inside the crushing barrel, the crushing assembly comprises a fourth rotating shaft, a second worm gear is sleeved on the top end of the fourth rotating shaft, a circular plate is sleeved on the bottom end of the fourth rotating shaft, a plurality of crushing pieces are rotatably installed on the outer circumference of the circular plate, and a circular notch is opened on one side of the circular plate, corresponding to the bottom end of the lower block of the feeding assembly.

[0007] Furthermore, the feed assembly support is fixedly installed on the top of the fixed frame, the feed assembly includes a feed pipe, the top of the feed block is fixedly connected to the feed pipe, a fifth rotating shaft is rotatably installed inside the feed pipe, and a feed auger blade is provided on the outer sleeve of the fifth rotating shaft; The fifth rotating shaft passes through the feeding pipe, the front end of the fifth rotating shaft is fixedly connected to the second worm, and the end of the feeding pipe is equipped with a feeding block; The second worm is meshingly connected with the second worm wheel, and the second worm wheel is coaxially fixedly connected to the top end of the fourth rotating shaft.

[0008] Furthermore, the feed block includes a feed barrel, and an arc-shaped clearing door is installed on the rear side of the lower end of the feed barrel. One side of the clearing door is hinged to the feed pipe by a hinge, and a limit block and a snap latch are installed on the opposite side of the clearing door, and the limit block and the snap latch cooperate with each other; when the feed block has entered the solid fertilizer for a long time and there is a lot of residue in the feed barrel, the snap latch can be pulled up to make it pass over the limit block to open the clearing door, and the user can clean the feed barrel by using a cleaning device.

[0009] Furthermore, a crawler vehicle is also included, the crawler vehicle includes a vehicle chassis and track wheels mounted on the vehicle chassis, a No. 1 motor is arranged on the vehicle chassis, and the No. 1 motor is used to drive the track wheels to rotate, so that the crawler vehicle can move in a field within a limited range; The mixing cylinder is installed on the vehicle chassis; The crushing barrel is fixedly installed on a fixing frame, the bottom of the fixing frame is fixedly connected to the vehicle chassis, and the crushing barrel is located right above the mixing barrel.

[0010] Furthermore, the spraying assembly includes a connecting pipe head connected to the bottom of the mixing barrel; a filter screen is also provided on the top of the connecting pipe head for intercepting undissolved solid fertilizer; The spraying assembly further comprises a plurality of fertilizing parts, each of which comprises a fixed cylinder and a lifting cylinder sleeved on an open portion of the fixed cylinder, and the height of the lifting cylinder relative to the fixed cylinder is adjusted by a height adjusting member; The fertilizing part also includes a first cylinder connected to the bottom end of the fixed cylinder, a first circular roller is coaxially arranged in the first cylinder, a first Y-shaped channel is opened on the first circular roller, and a spraying pipe head is arranged at the bottom of the first cylinder; The fertilizing part also includes a second cylinder connected to the top of the lifting cylinder. A second circular roller is coaxially rotated in the second cylinder. A second Y-shaped channel is opened on the second circular roller. The second cylinder is connected to the connecting pipe head through a conveying oblique hose.

[0011] Furthermore, the first circular roller is coaxially connected to the first sprocket, the second circular roller is coaxially connected to the second sprocket, and the first sprocket and the second sprocket are connected via a transmission chain, that is, the first circular roller and the second circular roller rotate synchronously.

[0012] Furthermore, when the two passages of the second Y-shaped passage are respectively connected to the conveying oblique hose and the lifting cylinder, any two passages of the first Y-shaped passage are not simultaneously connected to the spraying pipe head and the fixed cylinder; When the two passages of the first Y-shaped passage are respectively connected with the spray pipe head and the fixed cylinder at the same time, any two passages of the second Y-shaped passage are not connected with the conveying inclined hose and the lifting cylinder at the same time.

[0013] Further, the mixing assembly includes two mixing blocks, both of which are mounted on the second rotating shaft, and the two mixing blocks are relatively fixedly mounted on the second rotating shaft; The anti-sinking component includes a third rotating shaft, a bottom rotating plate is coaxially fixedly installed on the bottom of the third rotating shaft, and a plurality of arc plates are installed on the outer circumferential surface of the bottom rotating plate. In the anti-sinking component provided by the present invention, the third rotating shaft is rotated to drive the bottom rotating plate and the arc plate to stir the fertilizer at the bottom of the inner cavity of the mixing barrel, thereby avoiding precipitation in the fertilizer solution and improving the dissolution and mixing effect of the fertilizer.

[0014] Furthermore, it also includes a speed change gear assembly for driving the second rotating shaft to rotate, the speed change gear assembly includes a first gear, a second gear, a third gear, a fourth gear, a first rotating shaft, a second rotating shaft, a rotating member, a pulley and a second motor, the first gear and the second gear are installed on one side of the outside of the mixing barrel, the third gear and the fourth gear are installed on the outside of the first gear and the second gear, the first gear and the second gear are meshed, the third gear and the fourth gear are meshed, the first gear and the third gear are connected through the first rotating shaft, the pulley is installed between the first gear and the third gear on the first rotating shaft, and the second gear is connected to the third gear through the first rotating shaft. The gear is connected to the fourth gear through a second rotating shaft, the front end of the rotating member cooperates with the pulley through a circular groove, and a No. 2 motor is fixedly installed at the rear end of the rotating member; when the dissolving mechanism needs to start operating, the No. 2 motor drives the rotating member to rotate, and the rotating member drives the pulley to rotate by cooperating with the groove of the pulley, and the pulley then drives the first gear and the third gear to rotate through the first rotating shaft, the first gear continues to drive the second gear, and the third gear continues to drive the fourth gear, and finally the first worm is rotated, and the dissolving mechanism starts to rotate, so that the solid fertilizer and irrigation water in the mixing barrel are fully and evenly dissolved and stirred.

[0015] Furthermore, the mixing block includes a curved rod and a straight rod, two curved rods are staggered on the straight rod, and the straight rod is fixed by a nut; when the mixing assembly starts to operate, as the first worm rotates, the straight rod begins to rotate and stir the water and fertilizer and drives the curved rod to stir at the same time, so as to achieve rapid dissolution of solid fertilizer and irrigation water.

[0016] Compared with the prior art, the self-propelled fertilizer spreader with variable fertilization function of the present invention has the following beneficial effects: First, the present invention adopts a dissolving mechanism to fully dissolve and stir the solid fertilizer and irrigation water mixed in the mixing barrel, and at the same time intercepts, lifts, crushes and mixes the agglomerated part of the solid fertilizer with the irrigation water again through the anti-settling component, thereby avoiding the agglomerated part of the solid fertilizer directly mixing with the irrigation water to reduce the mixing efficiency, further increasing the mixing efficiency of the solid fertilizer and the irrigation water, thereby reducing the preparation time before the integrated water-fertilizer irrigation; Second, the third motor of the present invention drives the second worm gear and the second worm to rotate through the fifth rotating shaft, and the feeding auger blades and the crushing pieces cooperate with each other to crush the solid fertilizer, and the crushed solid fertilizer falls into the interior of the mixing barrel through the variable fertilizer dropping mechanism to obtain powdered fertilizer, and the solid fertilizer is mixed and dissolved with water through the dissolving component inside the mixing barrel, thereby improving the mixing efficiency of the solid fertilizer and water; Third, compared with wheeled vehicles, the crawler vehicle of the present invention has a lower degree of soil compaction and better soil protection, which is beneficial to the growth and development of crops; at the same time, the chassis design of the crawler vehicle is stable, and it can maintain stable driving in various terrains, effectively reducing the risk of accidents; Fourth, in the spraying assembly of the present invention, when liquid fertilizer enters the liquid cavity through the conveying inclined hose, it can be retained in the liquid cavity; then, the first circular roller and the second circular roller are rotated synchronously, so that the second cylinder is in a closed state and the first cylinder is in a conducting state, and the fertilizer retained in the liquid cavity can be discharged from the spraying pipe head to achieve fertilization. After fertilization, the first circular roller and the second circular roller are continued to rotate synchronously, keeping the first cylinder in a closed state and the second cylinder in a conducting state, and the cycle is repeated to achieve the fertilization process; since the height of the lifting cylinder relative to the fixed cylinder is adjustable, the amount of liquid fertilizer that can be retained in the liquid cavity can be changed as needed, which is more flexible to use and avoids waste of fertilizer solution during the fertilization process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention.

[0018] Figure 1 A three-dimensional diagram of a self-propelled fertilizer spreader with a variable fertilization function according to the present invention; Figure 2 for Figure 1 A front view of the self-propelled fertilizer spreader with variable fertilization function provided; Figure 3 A three-dimensional diagram from another perspective of a self-propelled fertilizer spreader with a variable fertilization function according to the present invention; Figure 4 A schematic diagram of the structure of a speed change gear assembly provided by the present invention; Figure 5 A schematic diagram of the structure of the crawler vehicle provided by the present invention; Figure 6 A schematic diagram of the structure of the mixing block provided by the present invention; Figure 7 A schematic diagram of the structure of the anti-sinking assembly provided by the present invention; Figure 8 A schematic diagram of the structure of the crushing assembly provided by the present invention; Fig. 9 A schematic diagram of the structure of the spray assembly provided by the present invention; Fig.10 It is a front view of the spray assembly of the present invention; Fig.11 It is a schematic diagram of the internal structure of the spray assembly of the present invention; Fig.12 for Fig.11 The enlarged schematic diagram of point A in the middle; Fig.13 A schematic diagram of the structure of the feed assembly provided by the present invention; Fig.14 A schematic diagram of the structure of the feed block provided by the present invention; Fig.15 A schematic diagram of the structure of the variable fertilizer delivery mechanism provided by the present invention; Fig.16 A schematic diagram of the cooperation between the second worm wheel and the second worm provided by the present invention; Fig.17 A schematic diagram of the cooperation between the first worm wheel and the first worm provided by the present invention; Fig.18 A schematic diagram of a speed change gear assembly provided by the present invention from another perspective; Fig.19 This is a schematic diagram of the dissolving mechanism provided by the present invention being installed in a mixing barrel.

[0019] The reference numerals are as follows: 1. Tracked vehicle; 11. Chassis; 12. No. 1 motor; 13. Track wheels; 14. Electric control box; 2. Dissolving mechanism; 21. Speed-changing gear assembly; 211. First gear; 212. Second gear; 213. Third gear; 214. Fourth gear; 215. First rotating shaft; 216. Second rotating shaft; 217. Rotating member; 218. Pulley; 219. No. 2 motor; 22. Mixing assembly; 221. First worm gear; 222. First worm; 223. Mixing block; 2231. Curved rod; 2232. Straight rod; 2233. Nut; 23. Anti-sinking assembly; 231. Third rotating shaft; 232. Bottom rotating plate; 233. Curved plate; 24. Handle No. 1; 3. Second worm gear; 4. Second worm gear; 5. Spraying assembly; 51. Connecting pipe head; 511. External thread; 512. Conveying oblique hose; 52. Filter; 53. Servo motor; 54. First sprocket; 541. First cylinder; 542. First circular roller; 543. First Y-shaped channel; 544. Fixed cylinder; 55. Transmission chain; 56. Second sprocket; 561. Second cylinder; 562. Second circular roller; 563. Second Y-shaped channel; 564. Lifting cylinder; 565. Lifting block; 566. Lifting screw rod; 567. Operating handle; 57. Elastic piece; 58. Elastic sprocket; 59. Spraying pipe head; 6. Feed assembly; 61. Feed block; 62. Feed pipe; 63. Fifth rotating shaft; 64. Feed auger blade; 65. Feed block; 651. Feed barrel; 652. No. 3 motor; 653. Cleaning door; 654. Hinge; 655. Limit block; 656. Buckle latch; 7. Fixed frame; 8. Crushing barrel; 81. Crushing assembly; 811. Fourth rotating shaft; 812. Circular plate; 813. Crushing sheet; 9. Variable fertilizer delivery mechanism; 91. Limiting cavity; 92. Movable plate; 93. Rack; 94. Fifth gear; 95. Sleeve; 96. No. 2 handle; 10. Mixing barrel. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0022] Please refer to Figure 1-Figure 3 In an embodiment of the present invention, a self-propelled fertilizer spreader with a variable fertilization function is provided, including a crawler vehicle 1. The crawler vehicle 1 has a lower degree of compaction on the soil, better protection of the soil, and is conducive to the growth and development of crops; at the same time, the chassis design of the crawler vehicle 1 is stable, and it can maintain stable driving in various terrains, effectively reducing the risk of accidents; Among them, Figure 5 As shown, the crawler vehicle 1 provided by the present invention includes a vehicle chassis 11 and track wheels 13 installed on the vehicle chassis 11, and the track wheels 13 are composed of wheels and adapted tracks; a No. 1 motor 12 is arranged on the vehicle chassis 11, and the No. 1 motor 12 is used to drive the track wheels 13 to rotate so that the crawler vehicle 1 can move in a field within a limited range; in addition, an electric control box 14 is also arranged on the vehicle chassis 11, and the electric control box 14 is not only used to control the start and stop of the No. 1 motor 12, but also used to control other electric actuator components of the self-propelled fertilizer spreader of the present invention, and the other electric actuator components are listed in the following description.

[0023] Please continue to refer to Figure 1-Figure 3 The self-propelled fertilizer spreader with variable fertilization function of the present invention further includes a mixing barrel 10, which is mounted on a vehicle chassis 11; the bottom end of the mixing barrel 10 is connected to a spraying assembly 5, which is arranged below the vehicle chassis 11, and the spraying assembly 5 is used to spray the homogeneous fertilizer solution mixed in the mixing barrel 10, and cooperate with the walking action of the crawler vehicle 1 in the field to spray the fertilizer solution in the field to realize the fertilization process; Further, such as Figure 1 and Fig.19As shown, the self-propelled fertilizer spreader with variable fertilization function of the present invention further includes a dissolving mechanism 2, which is arranged inside the mixing barrel 10. The present invention mixes the fertilizer solution in the mixing barrel 10 through the dissolving mechanism 2, and fully dissolves and stirs the solid fertilizer and the irrigation water. At the same time, the dissolving mechanism 2 can increase the mixing speed of the solid fertilizer and the irrigation water, reduce the preparation time before the integrated water-fertilizer irrigation, and thus increase the operation efficiency of the integrated water-fertilizer irrigation; Furthermore, the self-propelled fertilizer spreader with variable fertilization function of the present invention also includes a crushing barrel 8, which is fixedly mounted on a fixing frame 7, and the bottom of the fixing frame 7 is fixedly connected to the vehicle chassis 11. Through the support of the fixing frame 7, the crushing barrel 8 is located above the mixing barrel 10, and a variable fertilizer delivery mechanism 9 is provided at the bottom discharge port of the crushing barrel 8. The solid fertilizer in the crushing barrel 8 is poured into the mixing barrel 10 through the variable fertilizer delivery mechanism 9, and then irrigation water is poured into the mixing barrel 10, and then the dissolving mechanism 2 is manually or electrically controlled to quickly and fully mix the irrigation water and solid fertilizer in the mixing barrel 10. After the mixing is completed, the spraying component 5 sprays the water and fertilizer into the field adjacent to the ridge as the tracked vehicle 1 moves.

[0024] See also Figure 9-12 In one embodiment, the spray assembly 5 includes a connecting pipe head 51 connected to the bottom of the mixing barrel 10, wherein the outer ring of the connecting pipe head 51 has an external thread 511, and the external thread 511 is used to realize the detachable connection between the connecting pipe head 51 and the bottom of the mixing barrel 10; a filter screen 52 is also provided at the top of the connecting pipe head 51 for intercepting undissolved solid fertilizer; the spray assembly 5 also includes a plurality of fertilizing parts, each of which includes a fixed barrel 544 and a lifting barrel 564 sleeved at the open end of the fixed barrel 544, the height of the lifting barrel 564 relative to the fixed barrel 544 is adjusted by a height adjustment member, the height adjustment member includes a lifting block 565 fixedly connected to the outer wall of the lifting barrel 564, the lifting block 565 is sleeved on the lifting screw rod 566 by a threaded connection, and an operating handle 567 is installed at the top of the lifting screw rod 566 for manually operating to rotate the lifting screw rod 566, drive the lifting block 565 to move up and down, and then drive the lifting barrel 564 to adjust the height; Furthermore, the fertilizing part further includes a first cylinder 541 connected to the bottom end of the fixed cylinder 544, the first cylinder 541 is placed horizontally in the front-to-back direction, a first circular roller 542 is coaxially arranged in the first cylinder 541, a first Y-shaped channel 543 is provided on the first circular roller 542, a spraying pipe head 59 is arranged at the bottom of the first cylinder 541, the spraying pipe head 59 is connected to one channel of the first Y-shaped channel 543, and when the fixed cylinder 544 is connected to the other channel of the first Y-shaped channel 543, the fertilizer solution in the fixed cylinder 544 can be discharged ( Fig.12 is in a non-conducting state) to achieve fertilization; Furthermore, the fertilizing part also includes a second cylinder 561 connected to the top of the lifting cylinder 564, the second cylinder 561 is placed horizontally in the front-to-back direction, a second circular roller 562 is coaxially rotatably arranged in the second cylinder 561, a second circular roller 562 is provided with a second Y-shaped channel 563, the second cylinder 561 is connected to the connecting pipe head 51 through a conveying oblique hose 512, and is used to deliver the liquid fertilizer at the bottom of the mixing cylinder 10 to the liquid cavity formed by the lifting cylinder 564 and the fixed cylinder 544 when the two ends of the second Y-shaped channel 563 are respectively connected to the conveying oblique hose 512 and the lifting cylinder 564; In the embodiment of the present invention, the first circular roller 542 is coaxially connected to the first sprocket 54, the second circular roller 562 is coaxially connected to the second sprocket 56, and the first sprocket 54 and the second sprocket 56 are connected by a transmission chain belt 55, that is, the first circular roller 542 and the second circular roller 562 rotate synchronously; Correspondingly, in the embodiment of the present invention, when the two passages of the second Y-shaped channel 563 are respectively connected to the conveying oblique hose 512 and the lifting cylinder 564, any two passages of the first Y-shaped channel 543 are not simultaneously connected to the spraying pipe head 59 and the fixed cylinder 544; conversely, when the two passages of the first Y-shaped channel 543 are respectively connected to the spraying pipe head 59 and the fixed cylinder 544, any two passages of the second Y-shaped channel 563 are not simultaneously connected to the conveying oblique hose 512 and the lifting cylinder 564; under such limited conditions, when the liquid fertilizer enters the liquid cavity through the conveying oblique hose 512, it can be retained in the liquid cavity; then, the first circular roller 542 and the second circular roller 543 are connected. The circular rollers 562 rotate synchronously, so that the second cylinder 561 is in a closed state and the first cylinder 541 is in a conducting state, so that the fertilizer retained in the liquid cavity can be discharged from the spray pipe head 59 to achieve fertilization. After fertilization is completed, the first circular roller 542 and the second circular roller 562 continue to rotate synchronously, keeping the first cylinder 541 in a closed state and the second cylinder 561 in a conducting state, and the cycle is repeated to achieve the fertilization process. Since the height of the lifting cylinder 564 relative to the fixed cylinder 544 is adjustable, the amount of liquid fertilizer that can be retained in the liquid cavity can be changed as needed, which is more flexible to use and avoids waste of fertilizer solution during the fertilization process.

[0025] Please continue reading Fig. 9 and Fig.10 The spray assembly 5 is also provided with an elastic member 57 for keeping the transmission chain 55 taut; the spray assembly 5 is also provided with a servo motor 53 for driving the first sprocket 54 or the second sprocket 56 to rotate; wherein the elastic member 57 includes an elastic sprocket 58, and the position of the elastic sprocket 58 is adjustable, and specifically, a screw slider structure can be used to adjust the position of the elastic sprocket 58.

[0026] The fertilizing parts of the present invention can be provided in plurality as required, and the specific number is not limited.

[0027] Specifically, when the tracked vehicle 1 moves, the spraying assembly 5 as a whole also moves with the tracked vehicle 1, and the evenly mixed water and fertilizer contained in the mixing barrel 10 are transported to the liquid cavity of the fertilization part, output through the spraying pipe head 59, and then act on the ground field to achieve fertilization of the ground soil.

[0028] Please continue to refer to Figure 1-Figure 4 , Figure 6 and Figure 7 In the embodiment of the present invention, the dissolving mechanism 2 includes a mixing component 22 and an anti-sinking component 23. The anti-sinking component 23 is rotatably arranged in the bottom inner cavity of the mixing barrel 10 to prevent the fertilizer solution in the mixing barrel 10 from settling. The mixing component 22 is located above the anti-sinking component 23. The mixing component 22 is used to stir and mix the fertilizer solution in the mixing barrel 10. Among them, Figure 4 and Figure 6 As shown, the mixing assembly 22 includes two mixing blocks 223, both of which are mounted on the second rotating shaft 216, and the two mixing blocks 223 are relatively fixedly mounted on the second rotating shaft 216; In addition, the self-propelled fertilizer spreader with variable fertilization function of the present invention further includes a speed change gear assembly 21 for driving the second rotating shaft 216 to rotate, and the rotating second rotating shaft 216 drives the two mixing blocks 223 to stir the fertilizer in the mixing barrel 10, thereby accelerating the dissolution and mixing effect of the fertilizer; Further, such as Figure 7 As shown, the anti-sinking component 23 includes a third rotating shaft 231, and a bottom rotating plate 232 is coaxially fixedly installed at the bottom of the third rotating shaft 231. A plurality of arc plates 233 are installed on the outer circumferential surface of the bottom rotating plate 232. In the anti-sinking component 23 provided by the present invention, the third rotating shaft 231 is rotated to drive the bottom rotating plate 232 and the arc plates 233 to stir the fertilizer at the bottom of the inner cavity of the mixing barrel 10, thereby avoiding precipitation in the fertilizer solution and improving the dissolution and mixing effect of the fertilizer.

[0029] Please continue reading Figure 6 , Figure 7 and Fig.17In the embodiment of the present invention, the mixing component 22 and the anti-sinking component 23 are linked, that is, when the mixing component 22 is driven to move by the speed change gear component 21, the anti-sinking component 23 will be driven to move synchronously; specifically, the top of the third rotating shaft 231 is coaxially fixedly installed with a first worm gear 221, and the second rotating shaft 216 is coaxially fixedly provided with a first worm 222, and the first worm 222 is meshed with the first worm gear 221. Therefore, when the second rotating shaft 216 rotates, the third rotating shaft 231 is driven to rotate synchronously under the meshing cooperation between the first worm 222 and the first worm gear 221. Therefore, the mixing component 22 and the anti-sinking component 23 of the present invention move synchronously to achieve the full dissolution and mixing effect of the dissolving mechanism 2 on the fertilizer in the mixing barrel 10.

[0030] like Figure 1 , Figure 2 , Figure 4 and Fig.18 As shown, the speed change gear assembly 21 provided by the present invention includes a first gear 211, a second gear 212, a third gear 213, a fourth gear 214, a first rotating shaft 215, a second rotating shaft 216, a rotating member 217, a pulley 218 and a second motor 219. The first gear 211 and the second gear 212 are installed on one side of the outside of the mixing barrel 10, and the third gear 213 and the fourth gear 214 are installed outside the first gear 211 and the second gear 212. 2 are meshed with each other, the third gear 213 is meshed with the fourth gear 214, the first gear 211 is connected to the third gear 213 through the first rotating shaft 215, the pulley 218 is installed between the first gear 211 and the third gear 213 on the first rotating shaft 215, the second gear 212 is connected to the fourth gear 214 through the second rotating shaft 216, the front end of the rotating member 217 is matched with the pulley 218 through a circular groove, and the rear end of the rotating member 217 is fixedly installed with the second motor 219. When the dissolving mechanism 2 needs to start operating, the second motor 219 drives the rotating member 217 to rotate, and the rotating member 217 drives the pulley 218 to rotate by cooperating with the groove of the pulley 218. The pulley 218 then drives the first gear 211 and the third gear 213 to rotate through the first rotating shaft 215. The first gear 211 continues to drive the second gear 212, and the third gear 213 continues to drive the fourth gear 214. Finally, the first worm 222 is rotated, and the dissolving mechanism 2 starts to rotate, so that the solid fertilizer and irrigation water in the mixing barrel 10 are fully and evenly dissolved and stirred.

[0031] Further, such as Figure 6As shown, the mixing block 223 includes a curved rod 2231 and a straight rod 2232, on which two curved rods 2231 are staggered, and the straight rod 2232 is fixed by a nut 2233. When the mixing assembly 22 starts to operate, as the first worm 222 rotates, the straight rod 2232 starts to rotate and stir the water and fertilizer and drives the curved rod 2231 to stir at the same time to achieve rapid dissolution of solid fertilizer and irrigation water.

[0032] When the mixing assembly 22 starts to rotate, the third rotating shaft 231 starts to rotate, and the third rotating shaft 231 drives the bottom rotating plate 232. The multiple arc plates 233 circumferentially rotatably installed on the bottom rotating plate 232 start to rotate, and the solid fertilizers that are not fully dissolved deposited at the bottom of the mixing barrel 10 are lifted upward and cooperate with the mixing assembly 22 to quickly dissolve the undissolved fertilizers into the irrigation water.

[0033] See also Figure 2 , Figure 3 and Fig.15 The variable fertilizer dropping mechanism 9 is arranged at the bottom end of the crushing barrel 8, and the variable fertilizer dropping mechanism 9 includes a limiting cavity 91, a movable disk 92, a rack 93, a fifth gear 94, a sleeve 95 and a second handle 96. The limiting cavity 91 is connected to the fixed frame 7. A circular movable disk 92 is slidably installed in the limiting cavity 91, and a rack 93 is fixedly installed at the bottom end of the movable disk 92. The rack 93 is meshed with the fifth gear 94. A sleeve 95 is fixed on the inner side of the fifth gear 94, and a second handle 96 is installed at the end of the sleeve 95 away from the fifth gear 94; specifically, by Manually turning the No. 2 handle 96 drives the sleeve 95 to rotate, and the sleeve 95 continues to drive the fifth gear 94 to rotate. Through the meshing relationship between the rack 93 and the fifth gear 94, the movable disk 92 fixedly connected to the rack 93 starts to move in the limiting cavity 91. At this time, the solid fertilizer can enter the mixing barrel 10 through the opening at the bottom of the movable disk 92 and the crushing barrel 8 to be mixed with the irrigation water. The function of variable fertilizer fertilization is achieved by adjusting the size of the opening at the bottom of the movable disk 92 and the crushing barrel 8. The limiting cavity 91 is used to limit the position of the movable disk 92 to prevent it from falling off.

[0034] See also Figure 3 , Figure 8 and Fig.16 The crushing barrel 8 is located directly above the mixing barrel 10 and is fixed by a fixing frame 7. A crushing assembly 81 is arranged inside the crushing barrel 8, and the crushing assembly 81 includes a fourth rotating shaft 811. A second worm gear 3 is sleeved on the top end of the fourth rotating shaft 811, and a circular plate 812 is sleeved on the bottom end of the fourth rotating shaft 811. A plurality of crushing pieces 813 are rotatably mounted on the outer circumference of the circular plate 812. A circular notch is opened on the side of the circular plate 812 close to the feeding assembly 6, corresponding to the bottom end of the lower block 61 of the feeding assembly 6, for solid fertilizer to enter the crushing barrel 8.

[0035] Specifically, when the second worm gear 3 starts to rotate, the second worm gear 3 drives the fourth rotating shaft 811 to rotate, and the fourth rotating shaft 811 drives the circular plate 812 at the bottom to start rotating, and the crushing pieces 813 fixedly installed on the circular plate 812 begin to further crush the solid fertilizer that falls from the lower material block 61 into the crushing barrel 8 to obtain fine solid fertilizer, so as to speed up the water-fertilizer integration speed in the mixing barrel 10 in the next step and improve the fertilizer utilization efficiency.

[0036] See also Fig.13 and Fig.14 The feed assembly 6 provided by the present invention is supported and fixedly installed on the top of the fixed frame 7. The feed assembly 6 includes a feed pipe 62. The top of the lower block 61 is fixedly connected to the feed pipe 62. A fifth rotating shaft 63 is rotatably installed inside the feed pipe 62. The outer sleeve of the fifth rotating shaft 63 is provided with a feed auger blade 64. The fifth rotating shaft 63 runs through the feed pipe 62. The front end of the fifth rotating shaft 63 is fixedly connected to the second worm 4. A feed block 65 is installed at the end of the feed pipe 62. The second worm 4 is meshedly connected with the second worm gear 3, and the second worm gear 3 is coaxially fixedly connected to the top of the fourth rotating shaft 811. Specifically, the user starts the rotation of the third motor 652 through the control button, and the rotation of the third motor 652 drives the fifth rotating shaft 63 to rotate, and the rotation of the fifth rotating shaft 63 drives the feeding auger blade 64 to rotate. The rotation of the feeding auger blade 64 can transport the fertilizer entering from the feeding block 65 to the feeding pipe 62, and transport it to the unloading block 61 through the feeding auger blade 64. At this time, the solid fertilizer can be preliminarily crushed by the feeding auger blade 64, saving time for the thorough crushing in the crushing barrel 8 in the next step; It can be seen that the feeding action of the feeding component 6 of the present invention and the crushing action of the crushing component 81 are a linkage structure and are performed synchronously, thereby improving the crushing and pulverizing effect of the fertilizer.

[0037] It should be noted that in order to achieve the purpose of enabling the first worm wheel 221 and the first worm 222 to continuously rotate in meshing engagement in the mixing barrel 10, it is necessary to provide a sealing mechanism (not shown in the figure) outside the first worm wheel 221 and the first worm 222 to wrap the first worm wheel 221 and the first worm 222 to prevent the solid fertilizer from getting stuck and unable to rotate during mixing, thereby allowing the first worm wheel 221 and the first worm 222 to continuously rotate in the water body, thereby driving the mixing component 22 and the anti-sinking component 23 to continue to operate.

[0038] Further, such as Fig.13 and Fig.14As shown, the feed block 65 includes a feed barrel 651, and an arc-shaped cleaning door 653 is installed on the rear side of the lower end of the feed barrel 651. One side of the cleaning door 653 is hinged to the conveying pipe 62 by a hinge 654. A limit block 655 and a snap latch 656 are installed on the opposite side of the cleaning door 653, and the limit block 655 and the snap latch 656 cooperate with each other. When the feed block 65 has a lot of residue in the feed barrel 651 due to long-term entry of solid fertilizer, the snap latch 656 can be pulled up to make it pass over the limit block 655 to open the cleaning door 653, and the user can clean the feed barrel 651 by using a cleaning device.

[0039] Further, such as Figure 1-Figure 3 As shown, a handle 24 is fixedly mounted on one side of the mixing barrel 10 .

[0040] The working steps of the present invention are as follows: In the first step, the user first moves the crawler vehicle 1 to the field ridge where fertilizer is needed, and then pours solid fertilizer from the feed barrel 651. After starting the No. 3 motor 652, the No. 3 motor 652 drives the fifth rotating shaft 63 to rotate, and the solid fertilizer is preliminarily cut by the feeding auger blade 64 and transported to the unloading block 61 by the feeding pipe 62; In the second step, the solid fertilizer enters the crushing barrel 8 through the circular notch corresponding to the bottom end of the feeding block 61, and the second worm wheel 3 and the second worm 4 mesh and rotate to drive the circular plate 812 and the crushing piece 813 fixedly installed on the circular plate 812 to rotate and finely crush the solid fertilizer; In the third step, the crushed solid fertilizer enters the variable fertilizer delivery mechanism 9 at the bottom of the crushing barrel 8 and enters the mixing barrel 10. The movable disk 92 and the opening size at the bottom of the crushing barrel 8 can be adjusted according to the demand to control the fertilizer amount. At this time, irrigation water is introduced into the mixing barrel 10. After the solid fertilizer and irrigation water are introduced, the second motor 219 is started to drive the speed change gear assembly 21 to operate and then drive the mixing assembly 22 to start rotating. The meshing rotation of the first worm gear 221 and the first worm 222 continues to drive the anti-sinking assembly 23 to rotate to lift the solid fertilizer deposited at the bottom of the mixing barrel 10 and continue to fully dissolve it with the irrigation water. The fourth step is to spray the mixture through the spraying assembly 5 after the mixture is mixed, and then control the crawler vehicle 1 to move. At this time, the water and fertilizer will be evenly sprayed into the field through the spraying assembly 5.

[0041] The above solutions are only an illustration of a preferred example, but are not limited thereto. When implementing the present invention, appropriate replacement and / or modification can be performed according to user needs.

[0042] The number of devices and processing scales described here are used to simplify the description of the present invention. Applications, modifications and variations of the present invention will be obvious to those skilled in the art.

[0043] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and the embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily realized. Therefore, without departing from the general concept defined by the claims and equivalent scope, the present invention is not limited to the specific details and the illustrations shown and described here.

Claims

1. A self-propelled fertilizer spreader with variable fertilization function, characterized in that: include: A mixing cylinder (10), the bottom end of the mixing cylinder (10) being connected to the spraying assembly (5); A dissolving mechanism (2), the dissolving mechanism (2) being arranged inside the mixing barrel (10), the dissolving mechanism (2) comprising a mixing component (22) and an anti-sinking component (23), the anti-sinking component (23) being rotatably arranged in the bottom inner cavity of the mixing barrel (10), the mixing component (22) being located above the anti-sinking component (23); the mixing component (22) and the anti-sinking component (23) are linked by meshing cooperation between a first worm (222) and a first worm wheel (221); A crushing barrel (8) is located above the mixing barrel (10). A variable fertilizer dropping mechanism (9) is provided at the bottom discharge port of the crushing barrel (8). The variable fertilizer dropping mechanism (9) comprises a limit cavity (91), a movable disk (92), a rack (93), a fifth gear (94) and a sleeve (95). The limit cavity (91) is connected to the fixed frame (7). A circular movable disk (92) is slidably installed in the limit cavity (91). A rack (93) is fixedly installed at the bottom end of the movable disk (92). The rack (93) 3) meshing with a fifth gear (94), a sleeve (95) being fixed inside the fifth gear (94); a crushing assembly (81) is arranged inside the crushing barrel (8), the crushing assembly (81) comprising a fourth rotating shaft (811), a circular plate (812) being sleeved on the bottom end of the fourth rotating shaft (811), a plurality of crushing pieces (813) being rotatably mounted on the outer circumference of the circular plate (812), a circular notch being provided on one side of the circular plate (812) corresponding to the bottom end of the lower material block (61) of the feed assembly (6).

2. The self-propelled fertilizer spreader with variable fertilization function according to claim 1, characterized in that: The feed assembly (6) is supported and fixedly mounted on the top of the fixed frame (7), the feed assembly (6) comprises a feed pipe (62), the top of the feed block (61) is fixedly connected to the feed pipe (62), a fifth rotating shaft (63) is rotatably mounted inside the feed pipe (62), and a feed auger blade (64) is disposed on the outer sleeve of the fifth rotating shaft (63); The fifth rotating shaft (63) passes through the material conveying pipe (62), the front end of the fifth rotating shaft (63) is fixedly connected to the second worm (4), and the end of the material conveying pipe (62) is installed with a feed block (65); A second worm gear (3) is sleeved on the top end of the fourth rotating shaft (811); The second worm (4) is meshingly connected with the second worm wheel (3), and the second worm wheel (3) is coaxially fixedly connected to the top end of the fourth rotating shaft (811).

3. The self-propelled fertilizer spreader with variable fertilization function according to claim 2, characterized in that: The feed block (65) comprises a feed barrel (651), a curved material clearing door (653) is installed at the rear side of the lower end of the feed barrel (651), one side of the material clearing door (653) is hinged to the material conveying pipe (62) via a hinge (654), a limit block (655) and a buckle latch (656) are installed on the opposite side of the material clearing door (653), and the limit block (655) and the buckle latch (656) cooperate with each other.

4. The self-propelled fertilizer spreader with variable fertilization function according to claim 3, characterized in that: Also included is a crawler vehicle (1), the crawler vehicle (1) comprising a vehicle chassis (11) and a crawler wheel (13) mounted on the vehicle chassis (11), and a first motor (12) is disposed on the vehicle chassis (11); The mixing cylinder (10) is mounted on a vehicle chassis (11); The crushing barrel (8) is fixedly mounted on a fixing frame (7), the bottom of the fixing frame (7) is fixedly connected to the vehicle chassis (11), and the crushing barrel (8) is located directly above the mixing barrel (10).

5. The self-propelled fertilizer spreader with variable fertilization function according to any one of claims 2 to 4, characterized in that: The spraying assembly (5) comprises a connecting pipe head (51) connected to the bottom of the mixing barrel (10); a filter screen (52) is also provided at the top of the connecting pipe head (51) for intercepting undissolved solid fertilizer; The spraying assembly (5) further comprises a plurality of fertilizing sections, each of which comprises a fixed cylinder (544) and a lifting cylinder (564) sleeved on an open portion of the fixed cylinder (544), wherein the height of the lifting cylinder (564) relative to the fixed cylinder (544) is adjusted by a height adjusting member; The fertilizing section further comprises a first cylinder (541) connected to the bottom end of the fixed cylinder (544); a first circular roller (542) is coaxially rotatably disposed in the first cylinder (541); a first Y-shaped channel (543) is provided on the first circular roller (542); and a spraying pipe head (59) is disposed at the bottom of the first cylinder (541); The fertilizing section also includes a second cylinder (561) connected to the top end of the lifting cylinder (564), a second circular roller (562) is coaxially rotatably arranged in the second cylinder (561), a second Y-shaped channel (563) is provided on the second circular roller (562), and the second cylinder (561) is connected to the connecting pipe head (51) via a conveying oblique hose (512).

6. The self-propelled fertilizer spreader with variable fertilization function according to claim 5, characterized in that: The first circular roller (542) is coaxially connected to the first sprocket (54), the second circular roller (562) is coaxially connected to the second sprocket (56), and the first sprocket (54) and the second sprocket (56) are connected via a transmission chain belt (55).

7. The self-propelled fertilizer spreader with variable fertilization function according to claim 6, characterized in that: When the two passages of the second Y-shaped passage (563) are respectively connected to the conveying inclined hose (512) and the lifting cylinder (564), any two passages of the first Y-shaped passage (543) are not simultaneously connected to the spraying pipe head (59) and the fixing cylinder (544); When the two passages of the first Y-shaped channel (543) are respectively connected to the spray pipe head (59) and the fixed cylinder (544) at the same time, any two passages of the second Y-shaped channel (563) are not connected to the conveying inclined hose (512) and the lifting cylinder (564) at the same time.

8. The self-propelled fertilizer spreader with variable fertilization function according to claim 7, characterized in that: The mixing assembly (22) comprises two mixing blocks (223), the two mixing blocks (223) are both mounted on the second rotating shaft (216), and the two mixing blocks (223) are relatively fixedly mounted on the second rotating shaft (216); The anti-sinking assembly (23) comprises a third rotating shaft (231), a bottom rotating plate (232) is coaxially fixedly mounted on the bottom of the third rotating shaft (231), and a plurality of arc-shaped plates (233) are mounted on the outer circumferential surface of the bottom rotating plate (232).

9. The self-propelled fertilizer spreader with variable fertilization function according to claim 8, characterized in that: The invention also includes a speed change gear assembly (21) for driving the second rotating shaft (216) to rotate. The speed change gear assembly (21) includes a first gear (211), a second gear (212), a third gear (213), a fourth gear (214), a first rotating shaft (215), a second rotating shaft (216), a rotating member (217), a pulley (218), and a second motor (219). The first gear (211) and the second gear (212) are mounted on one side of the outside of the mixing barrel (10), the third gear (213) and the fourth gear (214) are mounted on the outside of the first gear (211) and the second gear (212), and the first gear (211) and the second gear (212) are mounted on the outside of the first gear (211) and the second gear (212). The first gear (211) is meshed with the second gear (212), the third gear (213) is meshed with the fourth gear (214), the first gear (211) and the third gear (213) are connected via a first rotating shaft (215), a pulley (218) is installed between the first gear (211) and the third gear (213) on the first rotating shaft (215), the second gear (212) and the fourth gear (214) are connected via a second rotating shaft (216), the front end of the rotating member (217) is matched with the pulley (218) via a circular groove, and a second motor (219) is fixedly installed at the rear end of the rotating member (217).

10. The self-propelled fertilizer spreader with variable fertilization function according to claim 9, characterized in that: The mixing block (223) comprises a curved rod (2231) and a straight rod (2232), two curved rods (2231) are staggeredly mounted on the straight rod (2232), and the straight rod (2232) is fixed by a nut (2233).

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