Grinding device for crop fertilizer production

Abstract

The invention discloses a grinding device for crop fertilizer production, and belongs to the technical field of fertilizer grinding devices.The grinding device for crop fertilizer production comprises an outer box, the upper end of the outer box is connected with a grinding assembly, one side of the grinding assembly is fixedly connected with a motor, and a screening assembly is arranged in the outer box; a secondary screening assembly is arranged at the end, away from the grinding assembly, of the screening assembly, material returning assemblies are arranged on the two sides of the screening assembly, the screening assembly is arranged, and the screening box is driven by a cam and a first cam to move up and down in a reciprocating mode, so that the screening box can primarily filter fertilizer, and large fertilizer particles are left; and meanwhile, in the process that the connecting rod pushes the fertilizer, part of the fertilizer can move to the material returning assembly to be ground again, waste of the fertilizer is reduced, the vertical movement distance of the screening box is smaller than the distance between the screening box and the push plate, and therefore the screening box does not have large influence on pushing of the push plate when moving.

Description

Technical Field

[0001] The invention relates to the technical field of fertilizer grinding devices, and more specifically, to a grinding device for producing crop fertilizers. Background Art

[0002] Crop fertilizers include organic fertilizers and inorganic fertilizers. Organic fertilizers are made from byproduct resources rich in organic matter as the main raw materials, which are fermented and decomposed. Organic fertilizers have the characteristics of improving soil, fertilizing soil, increasing soil nutrient vitality, purifying soil ecological environment, and ensuring high-quality, high-yield and high-efficiency vegetables. They are irreplaceable fertilizers in crop cultivation. Most of the nutrients contained in organic fertilizers are in an organic state, which is difficult for crops to use directly. Through the action of microorganisms, a variety of nutrients are slowly released, and nutrients are continuously supplied to crops.

[0003] General fertilizers are usually in block form, and the direct use effect is poor. Grinding them into small particles can greatly improve the effect. Organic fertilizers are generally soft in texture, and ordinary crushing machinery is prone to adhesion, resulting in poor grinding effect. At the same time, during the mechanical grinding process, the fertilizer may be too large or too small. Most mechanical devices recycle them for re-grinding, and fertilizers that are too small may cause uneven grinding after mixing. Summary of the invention

[0004] The object of the present invention is to provide a grinding device for producing crop fertilizers to solve the problems raised in the above-mentioned background technology.

[0005] A grinding device for producing crop fertilizers, comprising an outer box, a grinding assembly is connected to the upper end of the outer box, a motor is fixedly connected to one side of the grinding assembly, a discharge port is arranged at one end of the outer box away from the motor, a slag discharge port is arranged at one end of the outer box close to the motor, a screening assembly is arranged inside the outer box, the screening assembly is located below the grinding assembly, a re-screening assembly is arranged at one end of the screening assembly away from the grinding assembly, a return material assembly is arranged on both sides of the screening assembly, a transmission pipe is arranged at one side of the return material assembly close to the grinding assembly, and one end of the transmission pipe away from the return material assembly is connected to the grinding assembly; The grinding assembly includes an outer shell fixedly connected to the outer box, two grinding rollers are arranged inside the outer shell, one side of one of the grinding rollers is fixedly connected to the output end of the motor, a small gear is arranged at the end of the outer shell away from the motor, the small gear is fixedly connected to the grinding roller away from the motor, a large gear 1 is meshed on the outer side of the small gear, the large gear 1 is rotatably connected to the outer shell, a small gear 1 is fixedly connected to the end of the large gear 1 away from the motor, a gear is fixedly connected to the side of the small gear 1 away from the large gear 1, and a chain is transmission-connected to the gear.

[0006] Preferably, a large gear 2 is meshed with the outer side of the small gear 1, and the large gear 2 is rotatably connected to the small gear, and a connecting block is fixedly connected to the end of the large gear 2 away from the motor, and a contact block is fixedly connected to the outer side of the connecting block, and high-pressure jet boxes are provided on both sides of the grinding roller, and a receiving block is provided on the side of the high-pressure jet box close to the connecting block, and the receiving block is slidably connected to the contact block, and a discharge port is fixedly connected to the lower side of the grinding roller, and the grinding roller is divided into a primary grinding area and a secondary grinding area, and a partition plate is provided between the two areas. By providing the high-pressure jet box, when the contact block rotates to contact the receiving block, the high-pressure jet box starts to start, and the high-pressure jet box will perform high-pressure jet on the grinding roller, thereby removing the fertilizer adhered to the grinding roller, to prevent the adhesion of the fertilizer to the grinding roller from affecting the grinding effect of the grinding roller.

[0007] Preferably, the return assembly includes a partition fixedly connected to the outer box, an inclined plate is provided at one end of the partition away from the screening assembly, a return pipe is fixedly connected to one end of the inclined plate away from the partition, the upper end of the return pipe is fixedly connected to the transmission pipe, a return fan is provided on the side of the transmission pipe close to the grinding assembly, and the return fan is fixedly connected to the outer box. By setting up the return fan, the fertilizer fallen on the inclined plate can be recovered and transported to the interior of the grinding assembly for re-grinding through the action of the return fan, thereby improving the grinding effect.

[0008] Preferably, the screening assembly includes a screening box fixedly connected to the motor, the screening box having one end away from the grinding assembly fixedly connected to a push plate, the inside of the screening box being fixedly connected to a screen, a push plate being arranged on the screen, both sides of the push plate are fixedly connected to connecting rods, and one side of the connecting rod away from the push plate is fixedly connected to a rotating rod, and fixed blocks are arranged on both sides of the screening box, the fixed block is fixedly connected to the outer box, the upper end of the fixed block is fixedly connected to a spring, and one end of the spring away from the fixed block is fixedly connected to the screening box, and the lower end of the screening box is fixedly connected to a discharge port 1. By arranging the push plate, the push plate performs a swinging motion to push the fertilizer on the screen, which can accelerate the filtration and push larger fertilizer away from the return material assembly at the same time, so as to avoid excessive fertilizer accumulation on the fixed block 1 causing blockage and affecting the filtration efficiency.

[0009] Preferably, a connecting rod is fixedly connected to a side of the rotating rod away from the motor, and the connecting rod is located on a side of the rotating rod away from the motor. A movable groove is provided on the connecting rod, and a connecting block 1 is slidably connected in the movable groove. A gear 1 is fixedly connected to a side of the connecting block 1 away from the connecting rod, and the gear 1 is connected to the chain transmission, and the gear 1 is rotatably connected to the outer box. The rotating rod close to the motor is rotatably connected to the outer box. By providing the connecting block 1, the connecting block 1 is driven to rotate by the gear 1, so that the connecting block 1 and the connecting rod form a swing mechanism, so that the connecting rod continuously swings, and the swinging motion of the connecting rod drives the push plate to swing synchronously.

[0010] Preferably, the gear one is fixedly connected with a gear five at one end away from the screening box, the outer side of the gear five is transmission-connected with a chain two, the end of the chain two away from the gear five is transmission-connected with a gear four, the gear five and the gear four are both rotationally connected with the outer box, the gear five is fixedly connected with a chain two at one end close to the screening box, the chain two is fixedly connected with a gear three at one end away from the gear four, the gear three is transmission-connected with a chain one, the end of the chain one away from the gear three is transmission-connected with a gear two, the gear two is rotationally connected with the outer box, the gear two is fixedly connected with a cam at one end close to the screening box, the cam is movably connected with the screening box, and by providing the cam, the screening box is continuously driven to reciprocate up and down by the cam, so that the fertilizer in the screening box can accelerate the filtering efficiency through continuous shaking, and the distance of the up and down reciprocating motion of the screening box is less than the distance between the screen and the push plate, so that the up and down reciprocating motion of the screening box will not have a significant impact on the push of the push plate.

[0011] Preferably, a gear six is ​​provided on the side of the screening box close to the motor, the gear six is ​​rotatably connected to the outer box, a cam one is fixedly connected to one end of the gear six close to the screening box, the cam one is movably connected to the screening box, a chain three is transmission-connected to the outer side of the gear six, a side of the chain three away from the gear six is ​​transmission-connected to a gear seven, a side of the gear seven away from the gear six is ​​transmission-connected to a chain four, and the chain four is transmission-connected to the output end of the motor.

[0012] Preferably, the re-screening assembly includes a fixed block 1 fixedly connected to the outer box, a cam 2 is rotatably connected to a side of the fixed block 1 close to the motor, a screening plate is movably connected to the upper end of the cam 2, a side of the screening plate close to the discharge port is rotatably connected to the outer box, an end of the cam 2 away from the fixed block 1 is fixedly connected to a gear 8, a chain 5 is transmission-connected to the gear 8, a side of the chain 5 away from the gear 8 is transmission-connected to a gear 9, an end of the gear 9 close to the discharge port is transmission-connected to the gear 4, an inclined plate 1 is provided at an end of the fixed block 1 away from the screening plate, the inclined plate 1 is fixedly connected to the outer box, the inclined plate 1 is inclined toward the direction of the slag discharge port, and by providing the screening plate, the fertilizer on the screening plate can be filtered again by continuous shaking and moved toward the direction of the discharge port, so that the fertilizer meeting the particle size requirement can be discharged through the discharge port, and the smaller fertilizer will pass through the screening plate and fall onto the inclined plate 1, thereby improving the grinding quality of the fertilizer.

[0013] Compared with the prior art, the advantages of the present invention are: 1. In the present invention, by setting a grinding component, since the fertilizer is soft in texture and is prone to adhesion, which affects the grinding quality of the equipment, a high-pressure jet box is set on one side of the grinding roller, and the fertilizer on the grinding roller can be cleared by continuously spraying high-pressure jets through the high-pressure jet box. At the same time, by setting a contact block and a receiving block, the high-pressure jet box can be started only when the contact block contacts the receiving block, so that the high-pressure jet box will perform intermittent motion, which ensures the grinding quality of the grinding roller while reducing the energy consumption of the equipment, and the grinding roller is divided into zones, so that the re-ground fertilizer will not be mixed with the first-ground fertilizer.

[0014] 2. In the present invention, a screening assembly is provided, and the screening box is continuously driven to reciprocate up and down by the cam and cam 1, so that the screening box can filter the fertilizer initially by continuously flipping up and down, leaving larger fertilizer particles. At the same time, the connecting rod is continuously swung, so that the connecting rod can push the fertilizer inside the screen to move. During the pushing process, some larger fertilizers will be moved to the return material assembly under the action of the connecting rod for re-grinding, thereby reducing fertilizer waste. In addition, the distance of the up and down reciprocating movement of the screening box is smaller than the distance between the screen and the push plate, so that the up and down reciprocating movement of the screening box will not have a significant impact on the push of the push plate, and the filtering efficiency can also be accelerated.

[0015] 3. In the present invention, a re-screening assembly is provided, a screening plate is provided, and the continuous rotation of cam 2 drives the screening plate to shake up and down, so that the fertilizer on the screening plate can be filtered again through continuous shaking and move toward the discharge port, so that the fertilizer that meets the particle size requirements can be discharged through the discharge port, thereby completing the screening of fertilizer particles that meet the requirements, and smaller fertilizers will fall onto inclined plate 1 through the screening plate, and then flow out from the slag discharge port through inclined plate 1, thereby avoiding re-grinding of smaller fertilizer particles, resulting in uneven grinding effect and affecting the grinding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 Another perspective view of the overall structure of the present invention; Figure 3 A cross-sectional view of the overall structure of the present invention; Figure 4 It is a schematic structural diagram of the grinding assembly of the present invention; Figure 5 It is a partial structural schematic diagram of the grinding assembly of the present invention; Figure 6 For the present invention Figure 5 A magnified view of the structure at center A; Figure 7 It is a structural schematic diagram of the material recycling assembly of the present invention; Figure 8 It is a schematic structural diagram of the screening assembly of the present invention; Fig. 9 It is a structural schematic diagram of one side of the screening assembly of the present invention; Fig.10 For the present invention Fig. 9 A magnified view of the structure at B in the middle; Fig.11 Another perspective view of one side of the screening assembly of the present invention; Fig.12 For the present invention Fig.11 A magnified view of the structure at C in the middle; Fig.13 It is a structural schematic diagram of the other side of the screening assembly of the present invention; Fig.14 It is a schematic diagram of the overall structure of one side of the screening assembly of the present invention; Fig.15 It is a structural schematic diagram of the re-screening assembly of the present invention; Fig.16 For the present invention Fig.15 Enlarged view of the structure at D in the middle.

[0017] Explanation of the numbers in the figure: 1. Motor; 2. Outer box; 3. Discharge port; 4. Slag discharge port; 5. Return material assembly; 501. Partition plate; 502. Return material pipe; 503. Return material fan; 504. Inclined plate; 6. Transmission pipe; 7. Grinding assembly; 701. Housing; 702. Grinding roller; 703. Discharge port; 704. High-pressure jet box; 705. Receiving block; 706. Contact block; 707. Large gear one; 708. Small gear one; 709. Gear; 710. Connecting block; 711. Large gear two; 712. Chain; 8. Screening assembly; 801. Screening box; 802. Screen; 803. Discharge port one; 804. Push plate ;805, connecting rod;806, rotating rod;807, linkage rod;808, connecting block one;809, gear one;810, fixed block;811, spring;812, cam;813, gear two;814, chain one;815, gear three;816, gear four;817, gear five;818, chain two;819, cam one;820, gear six;821, chain three;822, gear seven;823, chain four;9, re-screening assembly;901, screening plate;902, fixed block one;903, gear eight;904, gear nine;905, chain five;906, cam two;907, tilting plate one. DETAILED DESCRIPTION Example

[0018] See also Figure 1 , Figure 2 and Figure 3 A grinding device for producing crop fertilizers, comprising an outer box 2, the upper end of the outer box 2; connected with a grinding assembly 7, one side of the grinding assembly 7 is fixedly connected with a motor 1, an end of the outer box 2 away from the motor 1 is provided with a discharge port 3, an end of the outer box 2 close to the motor 1 is provided with a slag discharge port 4, a screening assembly 8 is provided inside the outer box 2, the screening assembly 8 is located below the grinding assembly 7, an end of the screening assembly 8 away from the grinding assembly 7 is provided with a re-screening assembly 9, both sides of the screening assembly 8 are provided with return assembly 5, a transmission pipe 6 is provided on the side of the return assembly 5 close to the grinding assembly 7, and the end of the transmission pipe 6 away from the return assembly 5 is connected to the grinding assembly 7; See also Figure 4 , Figure 5 and Figure 6The grinding assembly 7 includes a shell 701 fixedly connected to the outer box 2, and two grinding rollers 702 are arranged inside the shell 701, one side of one grinding roller 702 is fixedly connected to the output end of the motor 1, and a small gear is arranged at the end of the shell 701 away from the motor 1, and the small gear is fixedly connected to the grinding roller 702 away from the motor 1, and a large gear 707 is meshed on the outer side of the small gear, and the large gear 707 is rotatably connected to the shell 701, and a small gear 708 is fixedly connected to the end of the large gear 707 away from the motor 1, and a gear 709 is fixedly connected to the side of the small gear 708 away from the large gear 707, and a chain 712 is transmission-connected to the gear 709.

[0019] See also Figure 4 , Figure 5 and Figure 6 The outer side of the small gear 1 708 is meshed with a large gear 2 711, and the large gear 2 711 is rotatably connected to the small gear. The end of the large gear 2 711 away from the motor 1 is fixedly connected to a connecting block 710, and the outer side of the connecting block 710 is fixedly connected to a contact block 706. High-pressure jet boxes 704 are provided on both sides of the grinding roller 702. A receiving block 705 is provided on the side of the high-pressure jet box 704 close to the connecting block 710. The receiving block 705 is slidably connected to the contact block 706. The lower side of the grinding roller 702 is fixedly connected to the motor 1. A discharge port 703 is fixedly connected, and the grinding roller 702 is divided into a primary grinding area and a secondary grinding area. A partition plate is arranged between the two areas. By arranging a high-pressure jet box 704, when the contact block 706 rotates to contact with the receiving block 705, the high-pressure jet box 704 starts to start, and the high-pressure jet box 704 will perform high-pressure jet to the grinding roller 702, thereby removing the fertilizer adhered to the grinding roller 702, and preventing the adhesion of the fertilizer to the grinding roller 702 from affecting the grinding effect of the grinding roller 702.

[0020] Specifically, after the motor 1 is started, it will control the two grinding rollers 702 to rotate and then grind the fertilizer. When the grinding roller 702 rotates, it will drive the small gear to rotate synchronously, and then drive the large gear 1 707 to rotate. The rotation of the large gear 1 707 will drive the small gear 1 708 to rotate synchronously, and then drive the large gear 2 711 to rotate through the small gear 1 708. The rotation of the large gear 2 711 will drive the connecting block 710 to rotate synchronously, and then drive the contact block 706 to rotate. When the contact block 706 rotates to contact with the receiving block 705, the high-pressure jet box 704 starts to start, and the high-pressure jet box 704 will perform high-pressure jet on the grinding roller 702, and then remove the fertilizer adhered to the grinding roller 702 to prevent the adhesion of the fertilizer to the grinding roller 702 from affecting the grinding effect of the grinding roller 702, and the ground fertilizer and the removed fertilizer will flow to the screening component 8 through the discharge port 703.

[0021] See also Figure 7The return component 5 includes a partition 501 fixedly connected to the outer box 2, an inclined plate 504 is arranged at one end of the partition 501 away from the screening component 8, a return pipe 502 is fixedly connected to one end of the inclined plate 504 away from the partition 501, the upper end of the return pipe 502 is fixedly connected to the transmission pipe 6, a return fan 503 is arranged on the side of the transmission pipe 6 close to the grinding component 7, and the return fan 503 is fixedly connected to the outer box 2. By setting the return fan 503, the fertilizer falling on the inclined plate 504 can be recovered and transported to the inside of the grinding component 7 for re-grinding through the action of the return fan 503, thereby improving the grinding effect.

[0022] Specifically, larger fertilizers will fall onto the inclined plate 504 under the push of the push plate 804, and then through the adsorption effect of the return fan 503, the fertilizers can be re-grinded from the transmission pipe 6 to the re-grinding area inside the grinding assembly 7 through the return pipe 502, thereby improving the uniformity of the fertilizer particles after grinding.

[0023] See also Figure 8 , Fig.12 and Fig.14 The screening assembly 8 includes a screening box 801 fixedly connected to the motor 1, a push plate 804 fixedly connected to one end of the screening box 801 away from the grinding assembly 7, a screen 802 fixedly connected to the inside of the screening box 801, a push plate 804 is arranged on the screen 802, connecting rods 805 are fixedly connected to both sides of the push plate 804, and a rotating rod 806 is fixedly connected to the side of the connecting rod 805 away from the push plate 804, and fixed blocks 810 are arranged on both sides of the screening box 801, and the fixed blocks 810 are fixed to the outer box 2. The upper end of the fixed block 810 is fixedly connected with a spring 811, and the end of the spring 811 away from the fixed block 810 is fixedly connected to the screening box 801, and the lower end of the screening box 801 is fixedly connected with a discharge port 803. By setting a push plate 804, the push plate 804 performs a swinging motion to push the fertilizer on the screen 802, which can accelerate the filtration and push the larger fertilizer into the return component 5, so as to avoid the accumulation of too large fertilizer on the fixed block 902 to cause blockage and affect the filtration efficiency.

[0024] See also Fig. 9 and Fig.10, a connecting rod 807 is fixedly connected to the side of the rotating rod 806 away from the motor 1, and the connecting rod 807 is located on the side of the rotating rod 806 away from the motor 1. A moving groove is provided on the connecting rod 807, and a connecting block 808 is slidably connected in the moving groove. A gear 809 is fixedly connected to the side of the connecting block 808 away from the connecting rod 807, and the gear 809 is transmission-connected to the chain 712. The gear 809 is rotationally connected to the outer box 2, and the rotating rod 806 close to the motor 1 is rotationally connected to the outer box 2. By providing a connecting block 808, the connecting block 808 is driven to rotate by the gear 809, so that the connecting block 808 and the connecting rod 807 form a swing mechanism, so that the connecting rod 807 continuously swings, and the swinging movement of the connecting rod 807 drives the push plate 804 to swing synchronously.

[0025] Specifically, when the pinion 708 rotates, it will synchronously drive the gear 709 to rotate. The rotation of the gear 709 will drive the gear 809 to rotate through the chain 712. The rotation of the gear 809 will drive the connecting block 808 to rotate synchronously, and then drive and connect the connecting rod 807 to form a swing mechanism, so that the connecting rod 807 continuously swings. The swinging motion of the connecting rod 807 will cause the rotating rod 806 to swing synchronously, and then the connecting rod 805 continuously swings, and then continuously drives the push plate 804 to swing, so as to push the fertilizer on the screen 802, accelerate the filtration, and at the same time push the larger fertilizer away to the return component 5, so as to avoid the accumulation of too large fertilizer on the fixed block 902 to cause blockage and affect the filtration efficiency.

[0026] See also Fig.11 , Fig.12 and Fig.14, the end of gear one 809 away from the screening box 801 is fixedly connected to gear five 817, the outer side of gear five 817 is transmission-connected with chain two 818, the end of chain two 818 away from gear five 817 is transmission-connected with gear four 816, gear five 817 and gear four 816 are both rotationally connected to the outer box 2, the end of gear five 817 close to the screening box 801 is fixedly connected to chain two 818, the end of chain two 818 away from gear four 816 is fixedly connected to gear three 815, gear three 815 is transmission-connected with chain one 814, and the end of chain one 814 away from gear three 815 is transmission-connected with Gear 2 813, gear 2 813 is rotationally connected to the outer box 2, and a cam 812 is fixedly connected to one end of the gear 2 813 close to the screening box 801, and the cam 812 is movably connected to the screening box 801. By setting the cam 812, the screening box 801 is continuously driven by the cam 812 to reciprocate up and down, so that the fertilizer in the screening box 801 can accelerate the filtering efficiency through continuous shaking, and the distance of the up and down reciprocating motion of the screening box 801 is smaller than the distance between the screen 802 and the push plate 804, so that the up and down reciprocating motion of the screening box 801 will not have a significant impact on the push of the push plate 804.

[0027] Specifically, when gear one 809 rotates, it will synchronously drive gear five 817 to rotate, and then drive gear four 816 to rotate through chain two 818. The rotation of gear four 816 will drive gear three 815 to rotate synchronously through chain two 818. The rotation of gear three 815 will drive gear two 813 to rotate through chain one 814. After gear two 813 rotates, it will drive cam 812 to rotate, and then continuously drive the screening box 801 to reciprocate up and down. The distance of the up and down reciprocating motion of the screening box 801 is less than the distance between the screen 802 and the push plate 804, so that the up and down reciprocating motion of the screening box 801 will not have a significant impact on the push of the push plate 804, and can also accelerate the filtration efficiency.

[0028] See also Fig.13 and Fig.14 A gear six 820 is provided on the side of the screening box 801 close to the motor 1, and the gear six 820 is rotatably connected to the outer box 2. One end of the gear six 820 close to the screening box 801 is fixedly connected to a cam one 819, and the cam one 819 is movably connected to the screening box 801. The outer side of the gear six 820 is transmission connected to a chain three 821, and the side of the chain three 821 away from the gear six 820 is transmission connected to a gear seven 822, and the side of the gear seven 822 away from the gear six 820 is transmission connected to a chain four 823, and the chain four 823 is transmission connected to the output end of the motor 1.

[0029] Specifically, when the output end of the motor 1 rotates, the chain four 823 will drive the gear seven 822 to rotate synchronously, and then the chain three 821 will drive the gear six 820 to rotate. The rotation of the gear six 820 will drive the cam one 819 to rotate, and then the screening box 801 will continuously perform up and down reciprocating motion, so that the fertilizer in the screening box 801 can accelerate the filtering efficiency through continuous shaking. At the same time, the cam one 819 and the cam 812 use the same power source, so that the two can rotate synchronously, which increases the stability of the equipment operation.

[0030] See also Fig.15 and Fig.16 The re-screening assembly 9 includes a fixed block 902 fixedly connected to the outer box 2, a side of the fixed block 902 close to the motor 1 is rotatably connected to a cam 906, an upper end of the cam 906 is movably connected to a screening plate 901, a side of the screening plate 901 close to the discharge port 3 is rotatably connected to the outer box 2, an end of the cam 906 away from the fixed block 902 is fixedly connected to a gear 8 903, a chain 5 905 is transmission-connected to the gear 8 903, a side of the chain 5 905 away from the gear 8 903 is transmission-connected to a gear 904, an end of the gear 904 close to the discharge port 3 The fixed block 902 is connected to the gear 916 for transmission, and an inclined plate 907 is provided at one end away from the screening plate 901. The inclined plate 907 is fixedly connected to the outer box 2, and the inclined plate 907 is inclined toward the slag discharge port 4. By setting the screening plate 901, the fertilizer on the screening plate 901 can be filtered again through continuous shaking and moved toward the discharge port 3, so that the fertilizer meeting the particle size requirements can be discharged through the discharge port 3, and the smaller fertilizer will pass through the screening plate 901 and fall onto the inclined plate 907, thereby improving the grinding quality of the fertilizer.

[0031] Specifically, the fertilizer filtered by the screen 802 will fall onto the screening plate 901, and the rotation of the gear four 816 will drive the gear nine 904 to rotate synchronously, and then drive the gear eight 903 to rotate through the chain five 905. The rotation of the gear eight 903 will drive the cam two 906 to rotate, and then cooperate with one side of the screening plate 901 to be connected to the motor 1 for rotation, so that the cam two 906 can continuously drive the screening plate 901 to shake up and down, so that the fertilizer on the screening plate 901 can be filtered again through continuous shaking and move toward the direction of the discharge port 3, so that the fertilizer that meets the particle size requirements can be discharged through the discharge port 3, and the smaller fertilizer will pass through the screening plate 901 and fall onto the inclined plate one 907, and then flow out from the slag discharge port 4 through the inclined plate one 907.

[0032] Working principle of the present invention: after the staff starts the motor 1, the fertilizer enters the interior of the grinding assembly 7 through the shell 701, and after the motor 1 is started, it will control the two grinding rollers 702 to rotate and then grind the fertilizer. When the grinding roller 702 rotates, it will drive the small gear to rotate synchronously, and then drive the large gear 1 707 to rotate. The rotation of the large gear 1 707 will drive the small gear 1 708 to rotate synchronously, and then drive the large gear 2 711 to rotate through the small gear 1 708. The rotation of the large gear 2 711 will drive the connecting block 710 to rotate synchronously, and then drive the contact block 706 to rotate. When the contact block 706 rotates to contact with the receiving block 705, the high-pressure jet box 704 starts to start, and the high-pressure jet box 704 will The grinding roller 702 uses high-pressure jets to remove the fertilizer stuck on the grinding roller 702, so as to prevent the fertilizer from sticking to the grinding roller 702 and affecting the grinding effect of the grinding roller 702. The ground fertilizer and the removed fertilizer will flow to the screening component 8 through the discharge port 703. At the same time, when the pinion 708 rotates, it will synchronously drive the gear 709 to rotate. The rotation of the gear 709 will drive the gear 809 to rotate through the chain 712. The rotation of the gear 809 will drive the connecting block 808 to rotate synchronously, and then drive and form a swing mechanism with the connecting rod 807, so that the connecting rod 807 continuously swings. The swinging motion of the connecting rod 807 will cause the rotating rod 806 to swing synchronously, so that the connecting rod 80 5 continuously makes a swinging motion, thereby continuously driving the push plate 804 to swing and push the fertilizer on the screen 802, accelerating the filtration while being able to push the larger fertilizer away to the return material component 5, so as to prevent the oversized fertilizer from accumulating on the fixed block 902 and causing blockage, thereby affecting the filtration efficiency. When the gear 1 809 rotates, it will synchronously drive the gear 5 817 to rotate, and then drive the gear 4 816 to rotate through the chain 2 818. The rotation of the gear 4 816 will drive the gear 3 815 to rotate synchronously through the chain 2 818. The rotation of the gear 3 815 will drive the gear 2 813 to rotate through the chain 1 814. After the gear 2 813 rotates, it will drive the cam 812 to rotate, thereby continuously driving the screening box 801 reciprocates up and down, and the distance of the reciprocating movement of the screening box 801 is smaller than the distance between the screen 802 and the push plate 804, so that the reciprocating movement of the screening box 801 will not have a significant impact on the push of the push plate 804, and can also accelerate the filtering efficiency. Large fertilizers will fall to the inclined plate 504 under the push of the push plate 804, and then through the adsorption effect of the return fan 503, the fertilizers can be re-grinded from the transmission pipe 6 to the re-grinding area inside the grinding assembly 7 through the return pipe 502, thereby improving the uniformity of the fertilizer particles after grinding. The fertilizers filtered by the screen 802 will fall onto the screening plate 901, and the rotation of the gear four 816 will drive the gear nine 904 to rotate synchronously.Then, the chain 5 905 drives the gear 8 903 to rotate, and the rotation of the gear 8 903 drives the cam 2 906 to rotate, and then cooperates with one side of the screening plate 901 to rotate and connect with the motor 1, so that the cam 2 906 can continuously drive the screening plate 901 to shake up and down, so that the fertilizer on the screening plate 901 can be filtered again through continuous shaking and move toward the discharge port 3, so that the fertilizer that meets the particle size requirements can be discharged through the discharge port 3, and the smaller fertilizer will pass through the screening plate 901 and fall onto the inclined plate 1 907, and then flow out from the slag discharge port 4 through the inclined plate 1 907.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A grinding device for producing crop fertilizer, comprising an outer box (2), characterized in that: A grinding assembly (7) is connected to the upper end of the outer box (2), a motor (1) is fixedly connected to one side of the grinding assembly (7), a discharge port (3) is provided at one end of the outer box (2) away from the motor (1), a slag discharge port (4) is provided at one end of the outer box (2) close to the motor (1), a screening assembly (8) is provided inside the outer box (2), the screening assembly (8) is located below the grinding assembly (7), a re-screening assembly (9) is provided at one end of the screening assembly (8) away from the grinding assembly (7), return material assemblies (5) are provided on both sides of the screening assembly (8), a transmission pipe (6) is provided on one side of the return material assembly (5) close to the grinding assembly (7), and one end of the transmission pipe (6) away from the return material assembly (5) is connected to the grinding assembly (7); The grinding assembly (7) comprises a housing (701) fixedly connected to the outer box (2), two grinding rollers (702) are arranged inside the housing (701), one side of one of the grinding rollers (702) is fixedly connected to the output end of the motor (1), a small gear is arranged at the end of the housing (701) away from the motor (1), the small gear is fixedly connected to the grinding roller (702) away from the motor (1), a large gear (707) is meshed on the outer side of the small gear, the large gear (707) is rotatably connected to the housing (701), a small gear (708) is fixedly connected to the end of the large gear (707) away from the motor (1), a gear (709) is fixedly connected to the side of the small gear (708) away from the large gear (707), and a chain (712) is transmission-connected to the gear (709).

2. A grinding device for producing crop fertilizer according to claim 1, characterized in that: The outer side of the small gear 1 (708) is meshed with a large gear 2 (711), and the large gear 2 (711) is rotatably connected to the small gear. The end of the large gear 2 (711) away from the motor (1) is fixedly connected to a connecting block (710), and the outer side of the connecting block (710) is fixedly connected to a contact block (706). High-pressure jet boxes (704) are provided on both sides of the grinding roller (702), and a receiving block (705) is provided on a side of the high-pressure jet box (704) close to the connecting block (710). The receiving block (705) is slidably connected to the contact block (706), and a discharge port (703) is fixedly connected below the grinding roller (702).

3. A grinding device for producing crop fertilizer according to claim 1, characterized in that: The return material assembly (5) comprises a partition (501) fixedly connected to the outer box (2); an inclined plate (504) is provided at one end of the partition (501) away from the screening assembly (8); a return material pipe (502) is fixedly connected to one end of the inclined plate (504) away from the partition (501); the upper end of the return material pipe (502) is fixedly connected to the transmission pipe (6); a return material fan (503) is provided on one side of the transmission pipe (6) close to the grinding assembly (7); and the return material fan (503) is fixedly connected to the outer box (2).

4. A grinding device for producing crop fertilizer according to claim 1, characterized in that: The screening assembly (8) comprises a screening box (801) fixedly connected to the motor (1), a push plate (804) fixedly connected to one end of the screening box (801) away from the grinding assembly (7), a screen (802) fixedly connected inside the screening box (801), a push plate (804) provided on the screen (802), connecting rods (805) fixedly connected to both sides of the push plate (804), the connecting rods (805) away from the push plate (804), and a push plate (804) fixedly connected to the two ends of the push plate (804). 04), a rotating rod (806) is fixedly connected to one side of the screening box (801), fixed blocks (810) are provided on both sides of the screening box (801), the fixed blocks (810) are fixedly connected to the outer box (2), a spring (811) is fixedly connected to the upper end of the fixed block (810), an end of the spring (811) away from the fixed block (810) is fixedly connected to the screening box (801), and a discharge port 1 (803) is fixedly connected to the lower end of the screening box (801).

5. A grinding device for producing crop fertilizer according to claim 4, characterized in that: A connecting rod (807) is fixedly connected to a side of the rotating rod (806) away from the motor (1); the connecting rod (807) is located on a side of the rotating rod (806) away from the motor (1); a movable groove is provided on the connecting rod (807); a connecting block 1 (808) is slidably connected in the movable groove; a gear 1 (809) is fixedly connected to a side of the connecting block 1 (808) away from the connecting rod (807); the gear 1 (809) is transmission-connected to the chain (712); the gear 1 (809) is rotationally connected to the outer box (2); and the rotating rod (806) close to the motor (1) is rotationally connected to the outer box (2).

6. A grinding device for producing crop fertilizer according to claim 5, characterized in that: The end of the gear 1 (809) away from the screening box (801) is fixedly connected to the gear 5 (817), the outer side of the gear 5 (817) is transmission-connected to the chain 2 (818), the end of the chain 2 (818) away from the gear 5 (817) is transmission-connected to the gear 4 (816), the gear 5 (817) and the gear 4 (816) are both rotationally connected to the outer box (2), the end of the gear 5 (817) close to the screening box (801) is fixedly connected to the chain 2 (818), the chain 2 One end of (818) away from the gear four (816) is fixedly connected to the gear three (815), and the gear three (815) is transmission-connected to the chain one (814), and one end of the chain one (814) away from the gear three (815) is transmission-connected to the gear two (813), and the gear two (813) is rotationally connected to the outer box (2), and one end of the gear two (813) close to the screening box (801) is fixedly connected to the cam (812), and the cam (812) is movably connected to the screening box (801).

7. A grinding device for producing crop fertilizer according to claim 6, characterized in that: A gear six (820) is provided on a side of the screening box (801) close to the motor (1), and the gear six (820) is rotatably connected to the outer box (2). One end of the gear six (820) close to the screening box (801) is fixedly connected to a cam one (819), and the cam one (819) is movably connected to the screening box (801). The outer side of the gear six (820) is transmission-connected to a chain three (821), and the side of the chain three (821) away from the gear six (820) is transmission-connected to a gear seven (822), and the side of the gear seven (822) away from the gear six (820) is transmission-connected to a chain four (823), and the chain four (823) is transmission-connected to the output end of the motor (1).

8. A grinding device for producing crop fertilizer according to claim 1, characterized in that: The re-screening assembly (9) comprises a fixed block 1 (902) fixedly connected to the outer box (2); a side of the fixed block 1 (902) close to the motor (1) is rotatably connected to a cam 2 (906); an upper end of the cam 2 (906) is movably connected to a screening plate (901); a side of the screening plate (901) close to the discharge port (3) is rotatably connected to the outer box (2); an end of the cam 2 (906) away from the fixed block 1 (902) is fixedly connected to the outer box (2); It is connected to gear eight (903), and the gear eight (903) is transmission-connected to chain five (905), and the chain five (905) is transmission-connected to gear nine (904) on the side away from gear eight (903). An inclined plate one (907) is provided at one end of the fixed block one (902) away from the screening plate (901), and the inclined plate one (907) is fixedly connected to the outer box (2), and the inclined plate one (907) is inclined toward the direction of the slag discharge port (4).

Images