A high-humidity corn ear multi-stage crushing device

Abstract

The present invention relates to the technical field of crushers and provides a multi-stage crushing device for high-moisture corn ears. The device includes a primary crushing device, disposed below a feed hopper, for receiving and crushing corn ears from the feed hopper. A secondary crushing device, disposed below the primary crushing device, receives and crushes the shredded material from the primary crushing device. Material flow is primarily due to the gravity of the corn ears, without the need for other devices. The multi-stage crushing significantly improves the crushing pass rate of corn ears, meeting industry and enterprise requirements.

Description

Technical Field

[0001] The invention relates to the crusher technology industry, in particular to a high-humidity corn ear multi-stage crushing device. Background Art

[0002] Corn, a commonly grown crop worldwide, boasts a short growth cycle and high yield. It is rich in nutrients such as protein, fat, and carbohydrates. After fermentation, it can be made into high-quality silage, widely used in livestock farming.

[0003] If corn is directly fermented to form feed, it will affect the quality of the feed and cause some nutrients to be lost. Therefore, crushing the corn and then fermenting it is one of the indispensable links in the feed processing process. For this purpose, a corn cob grading and crushing device is designed for its crushing process. Summary of the Invention

[0004] The object of the present invention is to provide a high-humidity corn ear multi-stage crushing device to solve the problems raised in the above background technology.

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

[0006] A multi-stage crushing device for high-humidity corn ears comprises a frame, a feed hopper, a primary chopping device, and a secondary crushing device, wherein the feed hopper is fixed to the primary crushing frame by being connected to the feed hopper connector; the primary chopping device comprises a first differential primary chopping shaft and a second differential primary chopping shaft, a plurality of primary chopping knives, a primary chopping frame, and a primary tensioning wheel shaft, the primary chopping knives are equidistantly arranged on the first differential primary chopping shaft and the second differential chopping shaft to form a primary chopping knife roller, which is fixed to the primary chopping frame and then reinforced by a primary plugging, the primary tensioning wheel shaft consists of a tensioning shaft and a tensioning wheel, which is fixed above the primary crushing frame and is fixed by a second tensioning wheel fastening baffle and changes the tensioning wheel height; the secondary crushing device comprises two first The secondary crushing shaft and the second secondary crushing shaft, the secondary disc crushing roller and the secondary tensioning wheel shaft are respectively arranged on the first and second secondary crushing shafts and the second secondary crushing shafts, connected to the secondary crushing frame, and then reinforced by the secondary plugging. The secondary tensioning wheel shaft is composed of a tensioning wheel and a tensioning shaft. The secondary tensioning wheel shaft is fixed above the secondary crushing frame and is fixed by the first tensioning wheel fastening baffle to change the height of the tensioning wheel. The first shredder frame is connected to the second crushing frame through a connecting plate. A second connecting plate is installed at the bottom of the second crushing frame, and a base is installed on the bottom side of the second connecting plate. A second crushing motor is installed on the outside of the second crushing frame. A motor support frame is installed between the first crushing motor and the second crushing motor. When in use, this device includes the following steps:

[0007] Step 1: Before crushing begins, both motors need to be started to reach a stable speed, 1200n / min for the first stage and 1000n / min for the second stage. Check whether the first and second stage shredding devices are blocked. After the crusher reaches a stable working state, prepare to start crushing.

[0008] Step 2: Corn is placed in a hopper and enters the primary shredder, which consists of a pair of counter-rotating differential-speed rollers, each equipped with 13-14 curved crushing knives. Once inside, the corn ears are shredded into flakes 3-5 mm thick for the secondary crusher. The flakes are then struck by the rapidly rotating rollers and sent to the secondary crusher, where they are crushed by a pair of disc crushing rollers, achieving the desired particle size.

[0009] Compared with the prior art, the beneficial effect of the present invention is that when the device is in use, corn ears are crushed in multiple stages under the action of gravity without the aid of other devices, which further improves the crushing qualification rate and meets the requirements of the industry and enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 The figure is a schematic structural diagram of a high-moisture corn ear multi-stage crushing device according to an embodiment of the present invention.

[0011] Figure 2 The figure is a connection diagram of a hopper and a hopper connector in a high-moisture corn cob multi-stage crushing device according to an embodiment of the present invention.

[0012] Figure 3 The figure is a schematic structural diagram of a first-stage shredding device in a multi-stage crushing device for high-moisture corn ears according to an embodiment of the present invention.

[0013] Figure 4 A front view of a first-stage chopping knife in a multi-stage crushing device for high-humidity corn ears according to an embodiment of the present invention

[0014] Figure 5 The figure is a schematic structural diagram of a secondary shredding device in a multi-stage crushing device for high-moisture corn ears according to an embodiment of the present invention.

[0015] In the figure: 1-feed hopper, 2-feed hopper connector, 3-first-stage shredder frame, 4-first-stage shredder blade, 5-first-stage sealing, 6-connecting plate, 7-second-stage crushing frame, 8-second-stage sealing, 9-second-stage disc crushing roller, 10-second-stage connecting plate, 11-base, 12-second-stage crushing motor, 13-first and second-stage crushing shafts, 14-second and second-stage crushing shafts, 15-motor support frame, 16-second-stage tensioning wheel shaft, 17-first tensioning wheel fastening baffle, 18-first-stage shredder motor, 19-first differential first-stage shredder shaft, 20-second differential first-stage shredder shaft, 21-first-stage tensioning wheel shaft, 22-second tensioning wheel fastening baffle, 23-slicing spacer, 24-positioning spacer. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0017] In one embodiment of the present invention: Figure 1-Figure 5As shown, a high-humidity corn cob multi-stage crushing device includes a frame, a feed hopper 1, a primary chopping device, and a secondary crushing device. The feed hopper 1 is fixed to the primary crushing frame 3 by connecting with the feed hopper connector 2; the primary chopping device includes a first differential primary chopping shaft 19 and a second differential primary chopping shaft 20, a plurality of primary chopping knives 4, a primary chopping frame 3, and a primary tensioning wheel shaft 21. The primary chopping knives 4 are equidistantly arranged on the first differential primary chopping shaft 19 and the second differential primary chopping shaft 20 to form a primary chopping knife roller, which is fixed to the primary chopping frame 3 and then reinforced by a primary blocking 5. The primary tensioning wheel shaft 21 consists of a tensioning shaft and a tensioning wheel, which is fixed above the primary crushing frame 3. A primary crushing motor 18 is installed on the outside of the primary crushing frame 3, and is fixed by a second tensioning wheel fastening baffle 22 to change the tensioning wheel height; the secondary crushing The device includes two equal-speed first and second crushing shafts 13 and second secondary crushing shafts 14, a secondary disc crushing roller 9 and a secondary tensioning wheel shaft 16. The secondary disc crushing rollers 9 are respectively arranged on the first and second secondary crushing shafts 13 and 14, and are connected to the secondary crushing frame 7, and then reinforced by the secondary blocking 8. The secondary tensioning wheel shaft 16 is composed of a tensioning wheel and a tensioning shaft. The secondary tensioning wheel shaft 16 is fixed above the secondary crushing frame 7 and is fixed by the first tensioning wheel fastening baffle 17 to change the height of the tensioning wheel. The first shredder frame 3 is connected to the secondary crushing frame 7 through a connecting plate 6. A secondary connecting plate 10 is installed at the bottom of the secondary crushing frame 7, and a base 11 is installed on the bottom side of the secondary connecting plate 10. A secondary crushing motor 12 is installed on the outside of the secondary crushing frame 7, and a motor support frame 15 is installed between the first crushing motor 18 and the secondary crushing motor 12.

[0018] In one embodiment of the present invention:

[0019] like Figure 3 As shown, the first-stage shredding device is driven by a pair of differential shredding shafts to drive the shredding blades to rotate in opposite directions, thereby cutting the whole corn into slices. The differential speed ratio is 3:1, and the differential speed ratio can also be adjusted by changing the size of the pulley according to different material requirements. The fast shredding roller and the slow shredding roller rotate in opposite directions with a 5mm gap. The fast shredding roller is fixed with 13 shredding blades, and the slow shredding roller is fixed with 14 shredding blades. The blades are separated by blade spacers (23) with a spacing of 10mm, so that the corn can be shredded into small segments of 5mm-10mm.

[0020] The primary shredder blade is 3mm thick and features a 20° angle at the contact surface, ensuring blade strength while enhancing both cutting efficiency and quality. The blade's arc shape conforms to the corn's surface, increasing the contact angle between the blade and the corn, preventing the corn from slipping or flying out of the primary shredder.

[0021] In one embodiment of the present invention:

[0022] like Figure 5 As shown, the secondary crushing device comprises two disc crushing rollers of the same speed. The crushing surface of the disc crushing roller is a "V-shaped" crushing cross section. Compared with the conventional tooth roller crushing roller, the crushing interface is multiplied. The two rollers rotate inward in opposite directions relative to each other. Six disc crushing rollers are installed on the secondary crushing shaft 1, and five disc crushing rollers are installed on the secondary crushing shaft 2. Both ends are fixed by plugs (24). The surface of the disc crushing roller has 36 gear teeth, the cone angle α is designed to be 30°, and the cutting edge depth is 10mm. The inner diameter of the disc crushing roller is a hexahedron with a side length of 46mm, which cooperates with the crushing shaft. Its outer diameter R1 is 117mm. The gap between the secondary crushing shaft 1 and the secondary crushing shaft 2 is L1, 1<L1≤3mm. The spacing between the two blades in the primary shredding device can be appropriately adjusted according to the required size of the corn shredding, and the adjustment size is between 3mm-5mm.

[0023] The working principle of the present invention is as follows: it includes a frame, a feed hopper 1, a primary shredding device, and a secondary crushing device. The feed hopper 1 is fixed to the primary crushing frame 3 by connecting with the feed hopper connector 2; the primary shredding device includes a first differential primary shredding shaft 19 and a second differential primary shredding shaft 20, a plurality of primary shredding knives 4, a primary shredding frame 3, and a primary tensioning wheel shaft 21. The primary shredding knives 4 are equidistantly arranged on the first differential primary shredding shaft 19 and the second differential primary shredding shaft 20 to form a primary shredding knife roller, which is fixed to the primary shredding frame 3 and then reinforced by a primary blocking 5. The primary tensioning wheel shaft 21 is provided with a plurality of primary shredding knives 4, a primary shredding frame 3, and a primary tensioning wheel shaft 21. The primary shredding knives 4 are equidistantly arranged on the first differential primary shredding shaft 19 and the second differential primary shredding shaft 20 to form a primary shredding knife roller, which is fixed to the primary shredding frame 3 and then reinforced by a primary blocking 5. The tension wheel shaft 21 is composed of a tensioning shaft and a tensioning wheel, which is fixed above the primary crushing frame 3. A primary crushing motor 18 is installed on the outside of the primary crushing frame 3. The second tensioning wheel fastening baffle 22 fixes and changes the height of the tensioning wheel; the secondary crushing device includes two equal-speed first and second crushing shafts 13 and second secondary crushing shafts 14, a secondary disc crushing roller 9 and a secondary tensioning wheel shaft 16. The secondary disc crushing roller 9 is arranged on the first and second crushing shafts 13 and second secondary crushing shafts 14 respectively, and is connected to the secondary crushing frame 7, and then reinforced by the secondary blocking 8. The secondary tensioning wheel shaft 16 is composed of a tensioning The secondary tension wheel shaft 16 is fixed above the secondary crushing frame 7 and is fixed by the first tension wheel fastening baffle 17 to change the height of the tension wheel. The primary shredder frame 3 is connected to the secondary crushing frame 7 through the connecting plate 6. The secondary connecting plate 10 is installed at the bottom of the secondary crushing frame 7. A base 11 is installed on the bottom side of the secondary connecting plate 10. A secondary crushing motor 12 is installed on the outside of the secondary crushing frame 7. A motor support frame 15 is installed between the primary crushing motor 18 and the secondary crushing motor 12. Before crushing begins, the two motors need to be started to reach a stable speed. The first level is 1200n / The primary shredder and secondary crusher are checked for blockage. Once the crusher reaches a stable operating state, prepare to begin crushing. During operation, corn is placed in the hopper and first enters the primary shredder. The primary shredder consists of a pair of counter-rotating differential-speed rollers, each equipped with 13-14 curved crushing knives. After entering the primary shredder, the corn ears are chopped into flakes 3-5 mm thick for crushing in the secondary crusher. The crushed corn flakes are then struck by the rapidly rotating rollers and sent to the secondary crusher. There, they are crushed by a pair of disc crushing rollers, achieving the desired particle size.

[0024] In summary, when the device is in use, corn ears are crushed in multiple stages under the action of gravity without the aid of other devices, which further improves the crushing qualification rate and meets the requirements of the industry and enterprises.

[0025] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A high-humidity corn ear multi-stage crushing device, characterized in that: The invention comprises a frame, a feed hopper (1), a primary shredding device, and a secondary crushing device, wherein the feed hopper (1) is connected and fixed to the primary shredding frame (3) through a feed hopper connector (2); the primary shredding device comprises a first differential primary shredding shaft (19) and a second differential primary shredding shaft (20), a plurality of primary shredding knives (4), a primary shredding frame (3), and a primary tensioning wheel shaft (21); the primary shredding knives (4) are arranged equidistantly on the first differential primary shredding shaft (19) and the second differential primary shredding shaft (20) to form a primary shredding knife roller, which is fixed to the primary shredding frame (3) and reinforced by a primary blocking (5); the primary tensioning wheel shaft (21) consists of a tensioning shaft and a tensioning wheel, is fixed above the primary shredding frame (3), and is fixed by a second tensioning wheel fastening baffle (22) and changes the tensioning wheel height; the secondary crushing device comprises two equal-speed first and second crushing shafts (13) and a second secondary crushing shaft (14), a secondary disc crushing roller (9) and a secondary tensioning wheel shaft (16), the secondary disc crushing roller (9) are arranged on the first secondary crushing shaft (13) and the second secondary crushing shaft (14), respectively, and are connected to the secondary crushing frame (7), and then reinforced by the secondary blocking (8), the secondary tensioning wheel shaft (16) is composed of a tensioning wheel and a tensioning shaft, the secondary tensioning wheel shaft (16) is fixed above the secondary crushing frame (7), and is fixed and the height of the tensioning wheel is changed by the first tensioning wheel fastening baffle (17), the first shredder frame (3) is connected to the second crushing frame (7) through a connecting plate (6), a second connecting plate (10) is installed at the bottom of the second crushing frame (7), a base (11) is installed on the bottom side of the second connecting plate (10), a second crushing motor (12) is installed on the outside of the second crushing frame (7), and a motor support frame (15) is installed between the first crushing motor (18) and the second crushing motor (12).

2. The high-humidity corn ear multi-stage crushing device according to claim 1, characterized in that: The secondary crushing device is arranged below the primary shredding device.

3. The high-humidity corn ear multi-stage crushing device according to claim 1, characterized in that: The first-stage chopping knife (4) is arranged in an arc shape.

4. The high-humidity corn ear multi-stage crushing device according to claim 1, characterized in that: The first-stage crushing knife (4) is provided with a 20° blade angle.

5. The high-humidity corn ear multi-stage crushing device according to claim 1, characterized in that: The tooth height of the first-stage crushing knife (4) is 60 mm, the tooth root arc radius is 25 mm, the tooth inter-tooth arc radius is 5 mm, the tooth tip and base transition arc radius is 35 mm, and the tooth back arc radius is 50 mm.

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