Multi-stage crushing device for large-particle grains
By designing a multi -class crushing device, the combined structure of crushing, screening, rolling wheels and crossbars solves the problem of uneven granular distribution in the existing crushing device, and achieves a more uniform crushing effect.
Patent Information
- Application Number
- CN202411555956.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-01-28
AI Technical Summary
When the existing crushing device crushes large grains, the grains are only subject to pressure in a single direction when the milling wheel rolls, resulting in uneven particle size distribution after crushing.
A multi -class crushing device is designed, including chassis, multiple rolling discs, sieve nets, crushing wheels and crossbars. The rotation of the roller and the roller by the motor is used to drive the roller for the reciprocating movement to increase the grim wheels to the grain to the grain. The horizontal and vertical pressure can be achieved more uniformly crushing.
Through the design of multi -class crushing device, the granular distribution uniformity of grain size after grain crushing is improved, and the crushing effect of the roller on the grain is enhanced.
Smart Images
Figure CN119368278A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of multi-stage crushing devices, in particular to a multi-stage crushing device for large grains. Background Art
[0002] Mixed grain rice (porridge) is a kind of grain processed product with rice and grains as the main raw materials. With its rich raw materials and reasonable combination, mixed grain rice (porridge) can meet the needs of human growth and development and various physiological activities to the greatest extent.
[0003] However, since the diameters of the rice and various grains in the mixed rice are different, the time required for cooking the rice and the various grains is also different, so that the rice and the grains are not cooked to the same degree during the cooking process. Therefore, a crushing device is needed to crush the large grains of grains to make the diameters of the grains and the rice the same, so that the rice and the grains can be cooked at the same time.
[0004] When using a grinding device to grind grains, the grains are usually poured onto a grinding disc inside the grinding device, and the grinding disc is rotated so that the grinding wheel on the grinding disc rolls to grind the grains on the grinding disc. However, when using the grinding disc and the grinding wheel to grind the grains, the grains are only subjected to pressure in a single direction when the grinding wheel rolls, which causes uneven force on the grains and uneven particle size distribution after grinding. Summary of the invention
[0005] In order to make up for the above shortcomings, the present invention provides a multi-stage crushing device for large-grain grains, which aims to improve the problem in the prior art that when using a grinding disc and a grinding wheel to crush the grains, the grains are only subjected to pressure in a single direction when the grinding wheel rolls, causing uneven force on the grains and uneven particle size distribution after crushing.
[0006] In order to achieve the above object, the present invention adopts the following technical scheme: a multi-stage crushing device for large grains, comprising:
[0007] A chassis, wherein a plurality of fixing rods are fixedly connected inside the chassis;
[0008] A plurality of motors 2 are respectively fixedly connected to the bottom ends of the fixed rods, the driving ends of the plurality of motors 2 pass through the fixed rods and are fixedly connected to milling discs, and a plurality of screens are fixedly connected to the outsides of the milling discs, and the screens are used to screen the crushed grains;
[0009] A plurality of motors 1 are respectively fixedly connected to one side of the chassis, and a plurality of driving ends of the motors 1 penetrate through the inner wall of the chassis and are fixedly connected with bolts;
[0010] A plurality of cross bars are all threadedly connected to the outside of the bolt, and one end of each of the cross bars is rotatably connected to a grinding wheel, which is used to grind and crush the grains;
[0011] A plurality of slide bars are fixedly connected to the inner wall of the chassis, one end of each of the slide bars passes through the middle of the cross bar, and the slide bars are used to limit the rotation of the cross bar;
[0012] A plurality of slots are arranged on the side wall of the chassis, and baffles are slidably connected inside the plurality of slots, and the baffles are used to guide the flow of grains.
[0013] As a further description of the above technical solution:
[0014] The diameters of the mesh holes of the plurality of meshes gradually decrease from top to bottom.
[0015] As a further description of the above technical solution:
[0016] It also includes multiple collection boxes, which are all located on one side of the chassis, multiple collection boxes are fixedly connected to the inside of each of the collection boxes, multiple collection boxes are fixedly connected to the inside of each of the collection boxes, multiple collection boxes are provided with discharge ports on one side, multiple collection boxes are provided with slide grooves at the rear end, multiple slide grooves are slidably connected to the inside of each of the slides, and multiple sliding ends are fixedly connected to the side wall of the chassis.
[0017] As a further description of the above technical solution:
[0018] The inner side wall of the chassis is fixedly connected with a plurality of side panels, the plurality of side wall bottom plates are closely attached to the top ends of the plurality of grinding discs, and the side panels are arranged at an angle.
[0019] As a further description of the above technical solution:
[0020] The plurality of slots are arranged obliquely.
[0021] As a further description of the above technical solution:
[0022] A plurality of connecting rods are fixedly connected to the front end of the inner wall of the chassis, and a scraper is fixedly connected to one end of each of the connecting rods. The scraper is arranged in a triangle and is used to clean the grains attached to the millstone.
[0023] As a further description of the above technical solution:
[0024] The top of the chassis is fixedly connected with a feed inlet, which is used to transport grains.
[0025] As a further description of the above technical solution:
[0026] A plurality of discharge ports are provided on one side of the machine box close to the collecting box.
[0027] As a further description of the above technical solution:
[0028] A plurality of the discharge holes are internally hinged with a box cover, and the box cover is used to close the discharge port.
[0029] As a further description of the above technical solution:
[0030] The diameters of the sieve holes on the plurality of sieve plates gradually decrease from top to bottom and correspond to the diameters of the sieve holes of the sieve mesh.
[0031] The present invention has the following beneficial effects:
[0032] In the present invention, the second motor is started to drive the milling disc, the screen mesh and the grains on the milling disc to rotate together. When the grains rotate, they pass under the milling wheel, so that the milling wheel crushes and pulverizes the grains. The first motor is started to rotate the bolts. When the bolts rotate, they push the crossbar to drive the milling wheel to reciprocate. Through the cooperation of the above structure, the grains on the milling disc are subjected to the lateral pressure of the milling wheel and the longitudinal pressure of the milling wheel when it slides, so that the particle size distribution of the crushed grains is uniform, and the crushing effect of the milling wheel on the grains is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] Figure 1 A three-dimensional diagram of a multi-stage crushing device for large grains proposed by the present invention;
[0034] Figure 2 A schematic diagram of the structure of a chassis of a multi-stage crushing device for large grains proposed by the present invention;
[0035] Figure 3 for Figure 2 The enlarged view of point A in the middle;
[0036] Figure 4 A cross-sectional view of a casing of a multi-stage crushing device for large grains proposed by the present invention;
[0037] Figure 5 A cross-sectional view of a screen of a multi-stage crushing device for large grains proposed by the present invention;
[0038] Figure 6 A schematic diagram of the structure of a grinding wheel of a multi-stage crushing device for large grains proposed by the present invention;
[0039] Figure 7 A schematic diagram of the structure of a collection box of a multi-stage crushing device for large grains proposed by the present invention;
[0040] Figure 8 A top view of a grinding disc of a multi-stage crushing device for large-grain grains proposed by the present invention.
[0041] Legend:
[0042] 1. Chassis; 2. Motor 1; 3. Feed inlet; 4. Discharge outlet; 5. Baffle; 6. Slide bar; 7. Slot; 8. Grinding wheel; 9. Screen; 10. Grinding plate; 11. Side plate; 12. Scraper; 13. Connecting rod; 14. Slider; 15. Cross bar; 16. Bolt; 17. Fixing rod; 18. Motor 2; 19. Screen plate; 20. Slide; 21. Collection box. DETAILED DESCRIPTION
[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0044] Reference Figure 1-8 An embodiment of the present invention is a multi-stage crushing device for large grains, comprising a chassis 1, a through hole is formed in the top wall of the chassis 1, a plurality of through holes are formed in the side wall of the chassis 1, a feed port 3 is fixedly connected to the top of the chassis 1, the feed port 3 is fixed to the through hole of the chassis 1, a plurality of fixing rods 17 are fixedly connected inside the chassis 1, the fixing rods 17 are arranged in a triangular structure, and when the grains pass through the sieve holes on the screen 9 and fall to the top of the fixing rods 17, the grains on the fixing rods 17 will slide down along the inclined surface of the fixing rods 17.
[0045] A through hole is provided in the middle of the fixing rod 17, and a motor 2 18 is fixedly connected to the bottom end of the fixing rod 17. A driving end of the motor 2 18 passes through the fixing rod 17 and is fixedly connected to a milling disc 10 (that is, the driving end of the motor 2 18 passes through the through hole on the fixing rod 17 and is connected to the milling disc 10). A screen 9 is fixedly connected to the outside of the milling disc 10. The screen 9 is arranged in an annular structure. The diameters of the sieve holes of the three screens 9 gradually decrease from top to bottom to achieve screening of grain particles of different sizes. The torque of the motor 2 18 enables the milling disc 10 to generate sufficient centrifugal force when rotating, so as to throw the grains on the milling disc 10 onto the screen 9. Auxiliary plates inclined toward the milling disc 10 are fixed at the four corners of the inner wall of the chassis 1 at the same horizontal line as the milling disc 10. The inclined auxiliary plates can prevent the uncrushed grains on the milling disc 10 from falling from between the inner wall of the chassis 1 and the screen 9 when the milling disc 10 rotates, and the inclined auxiliary plates can make the grains that fall onto the auxiliary plates slide onto the milling disc 10 again.
[0046] A plurality of motors 2 are fixedly connected to one side of the chassis 1, and the driving end of the motor 2 passes through the side wall of the chassis 1 and is fixedly connected with a bolt 16 (that is, the driving end of the motor 2 passes through the through hole on the chassis 1 and is connected with the bolt 16), and a cross bar 15 is threadedly connected to the outer side of the bolt 16, a through hole is opened in the middle of the cross bar 15, and one end of the cross bar 15 is rotatably connected to the roller 8.
[0047] The grains to be crushed are poured onto the grinding disc 10 on the upper part of the chassis 1 through the feed port 3, and then the motor 18 is started to drive the grinding disc 10, the screen 9 and the grains on the grinding disc 10 to rotate together. When the grinding disc 10 rotates, the grinding wheel 8 on the grinding disc 10 will rotate due to friction, and the grains will pass under the grinding wheel 8 when rotating, so that the grinding wheel 8 will crush the grains. And start the motor 2 to rotate the bolt 16. When the bolt 16 rotates, the thread on the outside of the bolt 16 will push the cross bar 15 to drive the grinding wheel 8 to slide forward. When the grinding wheel 8 slides to the middle of the grinding disc 10, the motor 2 will reverse to make the bolt 16 rotate in the opposite direction, driving the cross bar 15 to drive the grinding wheel 8 to slide to the outside of the grinding disc 10, and then start the motor 2 again to make the grinding wheel 8 reciprocate on the grinding disc 10. Through the cooperation of the above-mentioned structure, the grains on the grinding disc 10 are subjected to the lateral pressure of the grinding wheel 8 and the longitudinal pressure of the grinding wheel 8 when sliding, so that the particle size distribution of the grains after crushing is uniform, and the crushing effect of the grinding wheel 8 on the grains is improved. When the grinding wheel 8 moves, the grinding disc 10 also rotates, and the crushing pressure of the grains by the grinding wheel 8 is in an arc shape. When the grinding wheel 8 slides on the grinding disc 10, it can expand the crushing range of the grinding wheel 8 on the grains on the grinding disc 10.
[0048] When the motor 2 18 drives the millstone 10 to rotate, the crushed grains on the millstone 10 will be thrown onto the screen 9 outside the millstone 10 due to the centrifugal force of the millstone 10 when the millstone 10 rotates, and fall from the sieve holes on the screen 9.
[0049] A plurality of slide bars 6 are fixedly connected to the inner wall of the chassis 1, one end of the slide bar 6 passes through the middle of the cross bar 15 (i.e., one end of the slide bar 6 passes through the through hole on the cross bar 15), and when the bolt 16 rotates, the slide bar 6 will limit the cross bar 15 to prevent the cross bar 15 from rotating with the bolt 16 so that the cross bar 15 can slide.
[0050] A plurality of side panels 11 are fixedly connected to the other side of the inner wall of the chassis 1, the bottom of the side panels 11 is in close contact with the top of the grinding disc 10 and the screen 9, and the side panels 11 are inclined along the direction of rotation of the grinding disc 10, such as Figure 8 In the direction indicated by the middle arrow B, when the millstone 10 and the screen 9 rotate, the grain particles on the screen 9 that are larger than the diameter of the holes of the screen 9 will accumulate on one side of the side plate 11. As the grain particles accumulate, the grains will enter the millstone 10 again along the inclination direction of the side plate 11 to be crushed again.
[0051] A plurality of connecting rods 13 are fixedly connected to the inner side of the chassis 1, and a scraper 12 is fixedly connected to one end of the connecting rod 13. The scraper 12 is arranged in a triangular structure, and the bottom end of the scraper 12 is in close contact with the top of the milling disc 10. When the milling disc 10 rotates, the scraper 12 in close contact with the milling disc 10 can scrape off the grain particles on the top of the milling disc 10 that are adhered to the top of the milling disc 10 due to the extrusion of the grinding wheel 8.
[0052] The inner wall of the chassis 1 is provided with a plurality of slots 7, and a baffle 5 is slidably connected inside the slots 7. The slots 7 are arranged in an inclined manner. Figure 2 As shown, because the slot 7 is inclined, the baffle 5 sliding inside the slot 7 is also inclined inside the chassis 1, and the outer side of the baffle 5 is in close contact with the inner wall of the slot 7. The friction between the baffle 5 and the slot 7 is sufficient and does not cause the baffle 5 to slide easily inside the slot 7.
[0053] When it is necessary to crush the grains into smaller particles, the baffle 5 can be pulled hard to be pulled out from the inside of the chassis 1, and the baffle 5 can remove the shielding of the grinding disc 10 in the middle of the chassis 1, so that the grains falling from the sieve 9 on the top of the chassis 1 can fall onto the grinding disc 10 in the middle of the chassis 1, and the grains are crushed for the second time by the grinding wheel 8 on the grinding disc 10 in the middle of the chassis 1. Because the diameter of the sieve 9 holes in the middle of the chassis 1 is smaller than that of the sieve 9 holes on the top of the chassis 1, the grains falling from the sieve 9 in the middle of the chassis 1 will be finer.
[0054] When it is necessary to crush the grains into finer particles, the baffle 5 in the middle of the chassis 1 can be pulled out, so that the grain particles sifted from the sieve 9 in the middle of the chassis 1 can fall onto the grinding plate 10 at the bottom of the chassis 1 for the third crushing. In addition, the hole diameter of the sieve 9 at the bottom of the chassis 1 is smaller, and the grain particles sifted from the sieve 9 at the bottom of the chassis 1 will be finer. Through the above operation, the grains can be crushed into particles of different sizes according to needs.
[0055] Multiple collecting boxes 21 are installed on one side of the chassis 1, and sieve plates 19 are fixedly connected inside the multiple collecting boxes 21. The diameter of the sieve holes on the multiple sieve plates 19 gradually decreases from top to bottom, and the holes on the sieve plates 19 are the same as the diameter of the holes on the sieve plates 19, that is, the holes of the sieve plate 19 at the top of the chassis 1 are the same as the diameter of the holes of the screen 9, the holes of the sieve plate 19 in the middle of the chassis 1 are the same as the diameter of the holes of the screen 9, and the holes of the sieve plate 19 at the bottom of the chassis 1 are the same as the diameter of the holes of the screen 9.
[0056] A discharge port 4 is provided at both ends of the top and bottom of one side of the collection box 21, and a box cover is hinged on one side of the discharge port 4. A slide groove 20 is provided on one side of the collection box 21, and a slider 14 is slidably connected inside the slide groove 20. One side of the slider 14 is fixedly connected to one side of the chassis 1. The slider 14 and the slide groove 20 are both arranged in a T-shaped structure. The outer wall of the slider 14 is tightly attached to the inner wall of the slide groove 20, and the friction between the two is sufficient to prevent the slider 14 from sliding easily inside the slide groove 20. A plurality of discharge ports are provided on the side wall of the chassis 1 close to the collection box 21.
[0057] The grain particles sieved from the sieve 9 on the upper part of the chassis 1 are of appropriate size, so the baffle 5 on the upper part of the chassis 1 is pushed forcefully to make the baffle 5 slide toward the inside of the chassis 1 in the slot 7 to block the sieve 9 in the middle of the chassis 1. At this time, the grain particles sieved from the sieve 9 on the upper part of the chassis 1 will fall to the top of the baffle 5. Because the baffle 5 is inclined, the grain particles falling to the top of the baffle 5 will slide in the direction of the inclination of the baffle 5 and enter the collection box 21 from the discharge port on the side wall of the chassis 1. The grains entering the collection box 21 will fall to the top of the sieve plate 19. At this time, the grains in the middle of the grains that are smaller than the holes of the sieve plate 19 will fall into the bottom of the collection box 21, so that the grains inside the collection box 21 that are too small after the crushing fall into the collection box 21, and the grain particles inside the collection box 21 are screened. When the grains inside the collection box 21 need to be discharged, the box cover can be manually rotated to open the discharge port 4 on one side of the collection box 21, so that the grains inside the collection box 21 can flow out from the discharge port 4.
[0058] An opening is provided on one side of the collecting box 21, and a sealing plate is slidably connected to the inside of the opening. When the grains need to fall onto the grinding disc 10 in the middle of the chassis 1, the sealing plate can be inserted into the opening on one side of the collecting box 21 on the upper part of the chassis 1 to close the discharge port on the upper part of the chassis 1 to prevent the grains from falling from the screen 9 on the upper part of the chassis 1 to the middle part of the chassis 1 and flowing out from the discharge port on the upper part of the chassis 1. When the grains need to fall from the screen 9 in the middle of the chassis 1 to the grinding disc 10 at the bottom of the chassis 1, the discharge port in the middle of the chassis 1 can be closed by the sealing plate to prevent the grains from flowing out from the discharge port in the middle of the chassis 1 when falling.
[0059] When it is necessary to crush the grains, pour the grains from the feed port 3 onto the grinding disc 10 on the upper part of the chassis 1, then start the motor 2 18 to drive the grinding disc 10 and the screen 9 to rotate. When the grinding disc 10 rotates, the grinding wheel 8 that is in close contact with the grinding disc 10 will rotate due to friction, and the grains on the grinding disc 10 will be crushed and crushed. The motor 1 2 is started to rotate the bolt 16, and the cross bar 15 is pushed to drive the grinding wheel 8 to slide forward. When the grinding wheel 8 slides to the middle of the grinding disc 10, the motor 1 2 will reversely rotate to make the bolt 16 rotate in the opposite direction, driving the cross bar 15 to drive the grinding wheel 8 to slide toward the outside of the grinding disc 10, so that the grains on the grinding disc 10 are subjected to the lateral pressure of the grinding wheel 8 while also being subjected to the longitudinal pressure of the grinding wheel 8 when sliding, so that the grinding wheel 8 has a better crushing effect on the grains, and as the grinding disc 10 rotates, centrifugal force is generated, and the crushed grain particles on the grinding disc 10 are thrown onto the screen 9 and fall from the holes of the screen 9. When the grain particles are crushed into smaller particles, the baffle 5 can be pulled hard to be pulled out from the inside of the chassis 1, and the baffle 5 can remove the shielding of the grinding disc 10 in the middle of the chassis 1, so that the grain particles falling from the upper screen 9 of the chassis 1 can fall onto the grinding disc 10 in the middle of the chassis 1, and the grain particles are crushed for the second time by the grinding wheel 8 on the grinding disc 10 in the middle of the chassis 1. Because the diameter of the screen 9 holes in the middle of the chassis 1 is smaller than the screen 9 holes at the top of the chassis 1, the grain particles falling from the screen 9 in the middle of the chassis 1 will be finer. After the crushing is completed, it can be used to push the baffle 5 in the middle of the chassis 1, so that one side of the baffle 5 is in close contact with the inner wall of the chassis 1, so that the grain crushed from the screen 9 in the middle of the chassis 1 can fall onto the baffle 5 in the middle of the chassis 1, and the grain crushed from the screen 9 in the middle of the chassis 1 is transported to the inside of the collecting box 21 through the discharge port in the middle of the chassis 1 for collection.
[0060] When there is no need to crush the grains again, the baffle 5 on the top of the chassis 1 can be pushed into the interior of the chassis 1 to cover the grinding disc 10 in the middle of the chassis 1, so that the grains sifted from the sieve holes of the sieve 9 on the top of the chassis 1 can fall into the baffle 5 on the top of the chassis 1 and enter the collecting box 21 from the discharge port on the top of the chassis 1 for collection, and the sieve plate 19 inside the collecting box 21 can be used to sieve the smaller grain crushed grains among the grains entering the collecting box 21.
[0061] When the grain particles are finer when necessary, pull the baffle 5 in the middle of the chassis 1 to make the grain particles fall onto the grinding plate 10 at the bottom of the chassis 1 for the third crushing. After the crushing is completed, the grain particles sieved from the sieve 9 at the bottom of the chassis 1 are guided by the baffle 5 at the bottom of the chassis 1, so that the grain particles enter the collecting box 21 through the discharge port at the bottom of the chassis 1 for collection. Through the above operation, the grains can be crushed into particles of different sizes as needed, and grain particles of different sizes can be stored separately. When the grains need to be mixed with rice or millet, select grain particles with the same diameter as the rice or millet, so that they are easy to mix evenly, and different ingredients can be cooked together during steaming.
[0062] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A multi-stage crushing device for large grains, characterized in that: include A chassis (1), wherein a plurality of fixing rods (17) are fixedly connected inside the chassis (1); A plurality of motors (18) are respectively fixedly connected to the bottom ends of the fixed rods (17); the driving ends of the plurality of motors (18) penetrate the fixed rods (17) and are fixedly connected to a millstone (10); a plurality of screens (9) are fixedly connected to the outsides of the millstones (10); the screens (9) are used to screen the crushed grains; A plurality of motors (2) are respectively fixedly connected to one side of the chassis (1); the driving ends of the plurality of motors (2) penetrate the inner wall of the chassis (1) and are fixedly connected with bolts (16); A plurality of cross bars (15) are all threadedly connected to the outside of the bolt (16); one end of each of the cross bars (15) is rotatably connected to a grinding wheel (8), and the grinding wheel (8) is used to grind and crush the grains; A plurality of slide bars (6) are fixedly connected to the inner wall of the chassis (1), one end of each of the slide bars (6) passes through the middle of the cross bar (15), and the slide bars (6) are used to limit the rotation of the cross bar (15); A plurality of slots (7) are provided on the side wall of the chassis (1), and baffles (5) are slidably connected inside the plurality of slots (7), and the baffles (5) are used to guide the flow of grains.
2. A multi-stage crushing device for large grains according to claim 1, characterized in that: The diameters of the mesh holes of the plurality of screens (9) gradually decrease from top to bottom.
3. The multi-stage crushing device for large grains according to claim 1, characterized in that: It also includes a plurality of collection boxes (21), each of which is located on one side of the chassis (1), each of which is fixedly connected to a sieve plate (19) inside the plurality of collection boxes (21), each of which is fixedly connected to a sieve plate (19) inside the plurality of collection boxes (21), each of which is provided with a discharge port (4) on one side, each of which is provided with a slide groove (20) at the rear end, each of which is slidably connected to a slider (14) inside the plurality of slide grooves (20), and each of which has one end fixedly connected to the side wall of the chassis (1).
4. The multi-stage crushing device for large grains according to claim 1, characterized in that: The inner wall of the chassis (1) is fixedly connected with a plurality of side panels (11), the plurality of side wall bottom panels are closely attached to the top ends of the plurality of rolling discs (10), and the side panels (11) are arranged in an inclined manner.
5. The multi-stage crushing device for large grains according to claim 1, characterized in that: The plurality of slots (7) are arranged obliquely.
6. The multi-stage crushing device for large grains according to claim 1, characterized in that: A plurality of connecting rods (13) are fixedly connected to the front end of the inner wall of the chassis (1), and a scraper (12) is fixedly connected to one end of each of the connecting rods (13). The scraper (12) is arranged in a triangular shape and is used to clean grains attached to the millstone (10).
7. The multi-stage crushing device for large grains according to claim 1, characterized in that: A feed port (3) is fixedly connected to the top of the chassis (1), and the feed port (3) is used to transport grains.
8. The multi-stage crushing device for large grains according to claim 1, characterized in that: A plurality of discharge ports are provided on one side of the machine box (1) close to the collecting box (21).
9. The multi-stage crushing device for large grains according to claim 3, characterized in that: A plurality of the discharge holes are internally hinged with a box cover, and the box cover is used to close the discharge port (4).
10. The multi-stage crushing device for large grains according to claim 2, characterized in that: The diameters of the sieve holes on the plurality of sieve plates (19) gradually decrease from top to bottom and correspond to the diameters of the sieve holes of the sieve mesh (9).
Citation Information
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