Corn stalk crushing device

Abstract

The utility model discloses a corn stalk crushing device, comprising a shell, the top of the shell is fixedly connected to a feed box, the front of the shell is fixedly installed with a first motor, the output end of the first motor is fixedly connected to a crushing roller, the outer surface of the crushing roller is fixedly installed with an extrusion crushing knife along the axial position, the outer surface of the crushing roller is fixedly installed with a cutting crushing knife along the axial position, the inner wall of the shell is fixedly connected with a support plate, one side of the support plate is fixedly connected with a first reset spring. The utility model uses an electric cylinder and a mounting frame to cooperate with a cutter to perform preliminary cutting of the stalks to prevent winding, a double crushing roller design improves crushing efficiency and effect, an auxiliary cone thorn and support plate design avoids crushing dead corners and ensures sufficient crushing, and two sets of baffles on the inner wall of the feed box are movably connected to the inner wall of the shell through a second reset spring to ensure uniform feeding.

Description

Technical Field

[0001] The utility model relates to the technical field of crop straw crushing, in particular to a corn straw crushing device. Background Art

[0002] Corn is an important food crop in my country and also an important source of green fodder. In recent years, corn harvesting has gradually been mechanized, and corn stalks must be crushed and collected while corn ears are harvested.

[0003] However, most of the existing devices for crushing corn stalks have a relatively simple structure and incomplete functionality. In addition, the transverse cutting method of most devices causes the stalks to be broken into blocks, that is, into sections, and cannot be completely crushed, resulting in a poor effect of returning the corn stalks to the field. During use, the corn stalks are prone to insufficient crushing, and secondary crushing treatment is often required, which is time-consuming and labor-intensive, increases the cost of use, and reduces work efficiency.

[0004] In view of this, research and improvements are conducted on the existing problems, and a corn stalk crushing device is provided. The device can fully crush the corn stalks by installing a multi-layer crushing structure, thereby reducing the use cost and improving the work efficiency. The device has a reasonable structural design, and aims to solve the problem and improve the practical value through this technology. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a corn stalk crushing device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a corn stalk crushing device, comprising a shell, the top of the shell is fixedly connected to a feed box, the front of the shell is fixedly installed with a first motor, the output end of the first motor is fixedly connected with a crushing roller, the outer surface of the crushing roller is fixedly installed with an extrusion crushing knife along the axial position, the outer surface of the crushing roller is fixedly installed with a cutting crushing knife along the axial position, the inner wall of the shell is fixedly connected with a support plate, one side of the support plate is fixedly connected with a first return spring, one end of the first return spring is fixedly connected to the inner wall of the shell, and the support plate is fixedly connected to the inner wall of the shell. Auxiliary cone thorns are evenly fixedly connected to one side of the plate close to the crushing roller, fixing frames are fixedly installed on both sides of the feed box, an electric cylinder is fixedly installed inside the fixing frame, a mounting frame is fixedly installed on the output end of the electric cylinder, a cutter is arranged inside the mounting frame, a guide plate is fixedly connected to the middle position inside the shell, a through groove is opened in the middle position of the guide plate, fixing plates are fixedly installed on both sides of the bottom of the through groove, a first rotating shaft is rotatably connected between the two groups of fixing plates, a second motor is fixedly installed on one side of the first rotating shaft, and a crushing wheel is fixedly installed on the surface of the first rotating shaft.

[0007] As a further description of the above technical solution:

[0008] The extrusion and crushing knife has a pyramid-shaped knife body, and the upper part of the cutting and crushing knife has a pointed cone-shaped knife body.

[0009] As a further description of the above technical solution:

[0010] The inner wall of the feed box is rotatably connected with two groups of baffles via a rotating shaft, and the bottoms of the two groups of baffles are movably connected to the inner wall of the shell via a second return spring.

[0011] As a further description of the above technical solution:

[0012] The internal thread of the mounting frame is connected with a bolt, and the interior of the cutter is provided with a thread groove matched with the bolt.

[0013] As a further description of the above technical solution:

[0014] A third motor is fixedly mounted on the bottom end of one side of the shell, an output end of the third motor is fixedly connected to a second rotating shaft, and a conveying auger is fixedly connected to the surface of the second rotating shaft.

[0015] As a further description of the above technical solution:

[0016] The crushing wheel is located below the through slot, and a discharge port is fixedly connected to one side of the bottom of the shell.

[0017] As a further description of the above technical solution:

[0018] The extended end surfaces of the crushing rollers are fixedly sleeved with pulleys, and the two groups of pulleys are rotationally connected by belts.

[0019] The utility model has the following beneficial effects:

[0020] The utility model discloses a corn stalk crushing device, through the setting of a fixing frame, an electric cylinder, a mounting frame and a cutting knife, when crushing corn stalks, the cutting knife performs preliminary crushing on the stalks and cuts off the longer stalks, which can prevent the stalks from being entangled on the crushing roller during crushing, avoid affecting the crushing process, and improve the crushing efficiency. The double crushing roller of the straw has a simple structure and adopts a double-cutter design, which can crush the stalks faster and can perform double crushing on the corn stalks, so that the crushing effect is better and the crushing is more complete. The support plate and the auxiliary cone thorn on one side of the crushing roller are always fitted in the direction of the extruding crushing knife and the cutting crushing knife under the action of the first return spring, so that the stalks falling on the outside of the crushing roller can also be crushed, so that the stalks are not prone to crushing dead corners when crushing, and the crushing effect is improved. The third motor, the second rotating shaft and the conveying auger are used in coordination, and the material can be discharged automatically from left to right, which makes the discharge more convenient and facilitates the cleaning of the material in the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a corn stalk crushing device proposed by the utility model;

[0022] Figure 2 This is a schematic cross-sectional view of a corn stalk crushing device proposed by the utility model;

[0023] Figure 3 This is a schematic diagram of the enlarged structure of part A of a corn stalk crushing device proposed by the utility model;

[0024] Figure 4 This is a schematic diagram of the enlarged structure of part B of a corn stalk crushing device proposed by the utility model;

[0025] Figure 5 The utility model discloses a schematic diagram of the disassembled structure of a cutter of a corn stalk crushing device.

[0026] Legend:

[0027] 1. Shell; 2. Feed box; 3. First motor; 4. Crushing roller; 5. Extrusion crushing knife; 6. Cutting crushing knife; 7. Support plate; 8. First return spring; 9. Auxiliary cone; 10. Baffle; 11. Second return spring; 12. Fixed frame; 13. Electric cylinder; 14. Mounting frame; 15. Cutter; 16. Bolt; 17. Thread groove; 18. Guide plate; 19. Through groove; 20. Fixed plate; 21. Second motor; 22. First rotating shaft; 23. Crushing wheel; 24. Third motor; 25. Second rotating shaft; 26. Conveying auger; 27. Pulley; 28. Belt. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] Reference Figure 1-5 A corn stalk crushing device comprises a shell 1, a feed box 2 is fixedly connected to the top of the shell 1, a first motor 3 is fixedly installed on the front of the shell 1, a crushing roller 4 is fixedly connected to the output end of the first motor 3, an extrusion crushing knife 5 is fixedly installed on the outer surface of the crushing roller 4 along the axial position, a cutting crushing knife 6 is fixedly installed on the outer surface of the crushing roller 4 along the axial position, a support plate 7 is fixedly connected to the inner wall of the shell 1, a first return spring 8 is fixedly connected to one side of the support plate 7, one end of the first return spring 8 is fixedly connected to the inner wall of the shell 1, and an auxiliary cone thorn is evenly fixedly connected to the side of the support plate 7 close to the crushing roller 4 9. A fixing frame 12 is fixedly installed on both sides of the feed box 2, an electric cylinder 13 is fixedly installed inside the fixing frame 12, a mounting frame 14 is fixedly installed on the output end of the electric cylinder 13, a cutter 15 is arranged inside the mounting frame 14, a guide plate 18 is fixedly connected to the middle position inside the shell 1, a through groove 19 is opened in the middle position of the guide plate 18, fixing plates 20 are fixedly installed on both sides of the bottom of the through groove 19, a first rotating shaft 22 is rotatably connected between the two groups of fixing plates 20, a second motor 21 is fixedly installed on one side of the first rotating shaft 22, and a crushing wheel 23 is fixedly installed on the surface of the first rotating shaft 22.

[0031] Specifically, the extrusion and crushing knife 5 has a pyramid-shaped knife body, and the upper part of the cutting and crushing knife 6 has a pointed cone-shaped knife body. The pyramid-shaped knife body can provide a larger contact area and pressure during the crushing process, which is helpful for effectively extruding and crushing the corn stalks. The pointed cone-shaped knife body is conducive to penetrating and cutting the stalks, further improving the fineness of the crushing.

[0032] Specifically, the inner wall of the feed box 2 is rotatably connected with two groups of baffles 10 through a rotating shaft, and the bottoms of the two groups of baffles 10 are movably connected to the inner wall of the shell 1 through a second return spring 11. The design of the baffle 10 can adjust the speed and amount of feeding to ensure that the corn stalks can enter the crushing area evenly, avoiding inconsistent crushing effects or uneven equipment loads due to uneven feeding. The second return spring 11 of the structure provides the baffle 10 with the ability to automatically reset. Even if the baffle 10 is subjected to a certain pressure or impact during the straw crushing process, it can quickly return to its initial position to ensure continuous and stable feeding.

[0033] Specifically, the internal thread of the mounting frame 14 is connected with a bolt 16, and the interior of the cutter 15 is provided with a thread groove 17 that matches the bolt 16. The structural bolt 16 cooperates with the thread groove 17 inside the cutter 15 to achieve rapid installation and replacement of the cutter 15, thereby improving the efficiency of maintenance and operation.

[0034] Specifically, a third motor 24 is fixedly installed at the bottom end of one side of the shell 1, and the output end of the third motor 24 is fixedly connected to the second rotating shaft 25, and the surface of the second rotating shaft 25 is fixedly connected to the conveying auger 26. The conveying auger 26 fixedly connected to the surface of the second rotating shaft 25 of this structure can effectively convey the crushed corn stalks out of the device, thereby ensuring the continuity and automation of the crushing and conveying process.

[0035] Specifically, the crushing wheel 23 is located below the through slot 19, and a discharge port is fixedly connected to one side of the bottom of the shell 1. The crushing wheel 23 of this structure is located below the through slot 19, which can ensure that the corn stalks are further refined by the crushing wheel 23 after being processed by the crushing blades, thereby improving the crushing effect. The discharge port of this structure is arranged on one side of the bottom of the shell 1, which helps to discharge the crushed straw smoothly, avoid blockage, and maintain the continuity of the crushing process.

[0036] Specifically, the extended end surface of the crushing roller 4 is fixedly sleeved with a pulley 27, and the two sets of pulleys 27 are rotatably connected by a belt 28. This structure can effectively transmit the power of the motor to the crushing roller 4 to ensure the power requirement of the crushing process. At the same time, the design of the pulley 27 and the belt 28 allows the rotation speed of the crushing roller 4 to be adjusted to a certain extent to adapt to corn stalks of different hardness and humidity, thereby improving the crushing effect.

[0037] Working principle: When using the device, corn stalks are put into the feed box 2, and the cutter 15 is pushed by the output end of the electric cylinder 13 to perform preliminary crushing of the stalks, and the longer stalks are cut off. When the stalks enter, the baffle 10 is prompted to press down the second return spring 11, and the stalks fall through the gap between the baffles 10, which is conducive to slowing down the feeding speed and preventing the feed port from being blocked. Then the first motor 3 is started to drive the two sets of crushing rollers 4 to rotate, and the extrusion crushing knife 5 and the cutting and crushing knife 6 are used to crush the stalks. The support plate 7 and the auxiliary cone thorn 9 on one side of the crushing roller 4 are always fitted in the direction of the extrusion crushing knife 5 and the cutting and crushing knife 6 under the action of the first return spring 8. The corn stalks that fall on the outside of the crushing roller 4 can also be crushed, so that it is not easy to have dead corners when the corn stalks are crushed, and the crushing effect is improved. The crushed corn stalks fall downward through the guide plate 18 and the through groove 19, and then the first rotating shaft 22 is driven to rotate by the second motor 21, and the first rotating shaft 22 drives the crushing wheel 23 to rotate, and the crushing wheel 23 further crushes the corn stalks. After the corn stalks are crushed, the second rotating shaft 25 is driven to rotate by the third motor 24, and the second rotating shaft 25 drives the conveying auger 26 to rotate, and the conveying auger 26 conveys the corn stalks in the shell 1 from the left to the right, and finally discharges the corn stalks through the discharge port.

[0038] 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, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or 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 corn stalk crushing device, comprising a housing (1), characterized in that: The top of the shell (1) is fixedly connected to a feed box (2), the front of the shell (1) is fixedly mounted with a first motor (3), the output end of the first motor (3) is fixedly connected to a crushing roller (4), an extrusion crushing knife (5) is fixedly mounted on the outer surface of the crushing roller (4) along the axial position, and a cutting crushing knife (6) is fixedly mounted on the outer surface of the crushing roller (4) along the axial position. The inner wall of the shell (1) is fixedly connected to a support plate (7), one side of the support plate (7) is fixedly connected to a first return spring (8), one end of the first return spring (8) is fixedly connected to the inner wall of the shell (1), a side of the support plate (7) close to the crushing roller (4) is evenly fixedly connected to auxiliary cone thorns (9), and the feed box (2) is fixedly connected to the outer surface of the crushing roller (4). A fixing frame (12) is fixedly mounted on both sides, an electric cylinder (13) is fixedly mounted inside the fixing frame (12), a mounting frame (14) is fixedly mounted on the output end of the electric cylinder (13), a cutter (15) is arranged inside the mounting frame (14), a guide plate (18) is fixedly connected to the middle position inside the housing (1), a through slot (19) is provided in the middle position of the guide plate (18), fixing plates (20) are fixedly mounted on both sides of the bottom of the through slot (19), a first rotating shaft (22) is rotatably connected between the two groups of fixing plates (20), a second motor (21) is fixedly mounted on one side of the first rotating shaft (22), and a crushing wheel (23) is fixedly mounted on the surface of the first rotating shaft (22).

2. A corn stalk crushing device according to claim 1, characterized in that: The extrusion and crushing knife (5) has a pyramid-shaped knife body, and the upper part of the cutting and crushing knife (6) has a pointed cone-shaped knife body.

3. The corn stalk crushing device according to claim 1, characterized in that: The inner wall of the feed box (2) is rotatably connected to two groups of baffles (10) via a rotating shaft, and the bottoms of the two groups of baffles (10) are movably connected to the inner wall of the shell (1) via a second return spring (11).

4. The corn stalk crushing device according to claim 1, characterized in that: The mounting frame (14) is internally threadedly connected with a bolt (16), and the cutter (15) is internally provided with a thread groove (17) matching with the bolt (16).

5. The corn stalk crushing device according to claim 1, characterized in that: A third motor (24) is fixedly mounted on the bottom end of one side of the housing (1); an output end of the third motor (24) is fixedly connected to a second rotating shaft (25); and a conveying auger (26) is fixedly connected to the surface of the second rotating shaft (25).

6. The corn stalk crushing device according to claim 1, characterized in that: The crushing wheel (23) is located below the through slot (19), and a discharge port is fixedly connected to one side of the bottom of the housing (1).

7. The corn stalk crushing device according to claim 1, characterized in that: The extended end surfaces of the crushing rollers (4) are fixedly sleeved with pulleys (27), and two groups of the pulleys (27) are rotationally connected via belts (28).

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