Corn stalks crushing equipment
By designing a grabbing, crushing, squeezing, and lifting mechanism for corn stalk crushing equipment, the problem of high labor intensity caused by the need for collection and crushing in existing technologies has been solved. Direct crushing and squeezing in the field has been achieved, reducing labor intensity and improving the reliability of mechanical linkage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANDONG ACADEMY OF AGRICULTURAL SCIENCES
- Filing Date
- 2023-06-16
- Publication Date
- 2026-04-24
AI Technical Summary
Existing corn stalk crushers require the stalks to be collected and crushed at a fixed location, which is labor-intensive.
A corn stalk crushing device was designed, including a grabbing, crushing, compressing and lifting mechanism. Through mechanical linkage, the crushing, lifting and compressing of stalks in the field are realized, reducing labor intensity.
It enables direct crushing and compression of straw in the field, reducing labor intensity, lowering costs, and ensuring high reliability of mechanical linkage.
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Figure CN116724767B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of agricultural machinery and equipment technology, specifically to a corn stalk crushing device. Background Technology
[0002] Corn stalks are a crop used for feed, serving as both grain and cash crop. They are also an important production resource for industry and agriculture. As a food source, corn stalks are rich in nutrients and usable chemical components, and can be used as a raw material for livestock feed. For a long time, corn stalks have been one of the main roughage raw materials for livestock.
[0003] However, existing corn stalk crushers collect the stalks and crush them in a fixed location, which is labor-intensive. Summary of the Invention
[0004] The purpose of this invention is to solve the above-mentioned problems and provide a corn stalk crushing device that can crush corn stalks from both above and below ground without the need to collect the stalks, thus reducing labor intensity.
[0005] The technical solution adopted by this invention to solve its technical problem is:
[0006] A corn stalk crushing device includes a vehicle body, an outer shell mounted on the vehicle body, a gripping mechanism for gripping corn stalks mounted at the front end of the outer shell, a crushing mechanism for crushing the stalks inside the outer shell, a pressing mechanism for pressing the crushed stalks at the upper end of the outer shell, and a lifting mechanism for lifting the crushed stalks to the pressing mechanism position inside the outer shell.
[0007] The bottom of the outer shell is provided with an arc-shaped plate between the crushing mechanism and the extrusion mechanism. The lifting mechanism includes a limiting plate fixed on the inner wall of the outer shell and forming a lifting channel with the arc-shaped plate, a lifting frame provided in the outer shell for lifting the straw in the lifting channel to the extrusion mechanism, and a driving mechanism for driving the lifting frame to move. The two ends of the rotating shaft of the lifting frame are provided with a first layer plate, and a second layer plate is provided on the outside of the first layer plate. The first layer plate and the second layer plate are slidably connected, and the second layer plate is slidably connected to the inner wall of the outer shell.
[0008] The drive mechanism includes a drive shaft disposed inside the housing and rotating inside the housing, and first drive wheels disposed at both ends of the drive shaft. The first drive wheels are connected to the first shelf via a first connecting rod, and the first drive wheels are rotatably connected to the bottom of the lifting frame via a second connecting rod.
[0009] The inner wall of the outer casing is provided with a rotating shaft, and the drive shaft is connected to the rotating shaft via a belt. The rotating shaft is provided with a second drive wheel, and the outer cylindrical surface of the second drive wheel is provided with arc-shaped teeth. The inner wall of the outer casing is provided with a slide rod connected to the second layer plate. The slide rod is provided with a rack on its side that meshes with the arc-shaped teeth. It also includes a tension spring for pulling the second layer plate back to its original position.
[0010] Furthermore, the lifting frame includes a horizontal plate and a vertical plate.
[0011] Furthermore, the limiting plate is provided with a plurality of elongated holes evenly distributed, and the front end of the horizontal plate is provided with a plurality of protrusions that cooperate with the elongated holes.
[0012] Furthermore, the drive shaft is provided with a first pulley, and the rotating shaft is provided with a second pulley, the first pulley and the second pulley are connected by a belt.
[0013] Furthermore, a guide sleeve for moving the guide slide rod is provided on the inner wall of the outer casing.
[0014] Furthermore, both ends of the guide sleeve are provided with connecting plates, one end of the tension spring is connected to the connecting plate, and the other end of the tension spring is connected to the second layer plate.
[0015] Furthermore, the gripping mechanism includes a housing that slopes downwards from back to front at the front end of the housing, and a conveyor belt disposed within the housing, wherein a plurality of rows of first levers are evenly arranged on the surface of the conveyor belt.
[0016] Furthermore, the lower end of the housing is arc-shaped, and the upper end of the housing is provided with a plurality of second levers, the second levers corresponding to the intervals between a plurality of columns of first levers.
[0017] Furthermore, the upper end of the outer shell is provided with an extrusion groove, and the extrusion mechanism includes an extrusion plate disposed in the extrusion groove and moving therein, and a hydraulic cylinder disposed in the extrusion groove to drive the extrusion plate to move.
[0018] The beneficial effects of this invention are:
[0019] 1. The present invention includes a vehicle body, an outer shell mounted on the vehicle body, a gripping mechanism for gripping corn stalks mounted at the front end of the outer shell, a crushing mechanism for crushing the stalks inside the outer shell, a pressing mechanism for compressing the crushed stalks at the upper end of the outer shell, and a lifting mechanism for lifting the crushed stalks to the pressing mechanism position inside the outer shell. As the vehicle body moves through the field, the gripping mechanism grips the stalks in the field and brings them to the crushing mechanism for crushing. The crushed stalks are then lifted by the lifting mechanism to the pressing mechanism for compression molding. This eliminates the need to collect the stalks before crushing them, reducing labor intensity.
[0020] 2. The driving mechanism in this invention includes a drive shaft disposed within the housing and rotating therein, and first drive wheels disposed at both ends of the drive shaft. The first drive wheels are connected to the first shelf via a first connecting rod, and the first drive wheels are rotatably connected to the bottom of the lifting frame via a second connecting rod. As the drive shaft rotates clockwise, the first drive wheels rotate accordingly. When the junction of the second connecting rod and the first drive wheel rotates downwards, the second connecting rod pushes the lifting frame to swing clockwise, causing the lifting frame to move backwards while swinging clockwise. In other words, while the lifting frame swings clockwise, it slowly moves forward, pushing the straw in the lifting channel upwards. When the hinge point of the second connecting rod and the first drive wheel rotates upwards, the lifting frame swings counterclockwise. At this time, when the hinge point of the first connecting rod rotates downwards, the lifting frame swings counterclockwise while moving forward. In other words, while the lifting frame swings counterclockwise, it slowly moves backwards. This mechanical structure achieves synchronization of the lifting frame's swinging and movement, eliminating the need for a separate drive mechanism. This results in low cost, high reliability, and a compact cycle time due to the mechanical linkage.
[0021] 3. This invention features a rotating shaft on the inner wall of the outer casing. The drive shaft is connected to the rotating shaft via a belt. A second drive wheel is mounted on the rotating shaft, and arc-shaped teeth are provided on the outer cylindrical surface of the second drive wheel. A slide rod connected to a second layer plate is mounted on the inner wall of the outer casing. A rack meshing with the arc-shaped teeth is provided on the side of the slide rod. The invention also includes a tension spring for pulling the second layer plate back to its original position. When the drive shaft drives the rotating shaft to rotate via the belt, the second drive wheel rotates continuously. When the arc-shaped teeth mesh with the rack, they push the slide rod upward against the elastic force of the tension spring. After the lifting frame swings three times, the fourth time it completely pushes the crushed straw in the lifting channel into the extrusion mechanism. The extrusion mechanism extrudes and shapes the straw. After the arc-shaped teeth separate from the rack, the second layer plate moves downward to its original position under the action of the tension spring. This process repeats. A single motor can completely push the crushed straw in the lifting channel into the extrusion mechanism, eliminating the need for a separate drive mechanism. This results in low cost and reliable mechanical linkage. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the structure of the present invention;
[0024] Figure 2 This is a front view of the internal structure of the present invention;
[0025] Figure 3 This is a schematic diagram of the lifting mechanism structure of the present invention. Figure 1 ;
[0026] Figure 4 This is a schematic diagram of the lifting mechanism structure of the present invention. Figure 2 ;
[0027] Figure 5 This is a schematic diagram of the gripping mechanism of the present invention.
[0028] In the diagram: 1. Vehicle body; 2. Outer shell; 3. Arc-shaped plate; 4. Limiting plate; 5. Lifting frame; 6. First layer plate; 7. Second layer plate; 8. Horizontal plate; 9. Vertical plate; 10. Long slot; 11. Protrusion; 12. Drive shaft; 13. First drive wheel; 14. First connecting rod; 15. Second connecting rod; 16. Rotating shaft; 17. Belt; 18. Second drive wheel; 19. Arc-shaped tooth; 20. Slide rod; 21. Rack; 22. Tension spring; 23. First pulley; 24. Second pulley; 25. Guide sleeve; 26. Connecting plate; 27. Housing; 28. Conveyor belt; 29. First lever; 30. Second lever; 31. Extrusion groove; 32. Extrusion plate; 33. Hydraulic cylinder. Detailed Implementation
[0029] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this invention.
[0030] like Figure 1 As shown, a corn stalk crushing device includes a vehicle body 1, an outer shell 2 mounted on the vehicle body 1, a gripping mechanism at the front end of the outer shell 2 for gripping corn stalks, a crushing mechanism inside the outer shell 2 for crushing the stalks, a pressing mechanism at the upper end of the outer shell 2 for compressing the crushed stalks, and a lifting mechanism inside the outer shell 2 for lifting the crushed stalks to the pressing mechanism. The crushing mechanism includes a rotating shaft inside the outer shell 2 and several cutters mounted on the shaft and rotating with it. The outer shell 2 has grooves corresponding to the rotating shaft, and a motor driving the rotating shaft is mounted on the outer shell 2. This is existing technology and will not be described in detail here. As the vehicle body 1 moves through the field, the gripping mechanism grabs the stalks from the field and crushes them at the crushing mechanism. The crushed stalks are then lifted by the lifting mechanism to the pressing mechanism for compression molding. This eliminates the need to collect the stalks before crushing, reducing labor intensity.
[0031] like Figure 1 and Figure 3As shown, the bottom of the outer shell 2 is provided with an arc-shaped plate 3 located between the crushing mechanism and the extrusion mechanism. The arc-shaped plate 3 is a downwardly convex arc shape. The lifting mechanism includes an arc-shaped plate 4 fixed to the inner wall of the outer shell 2 and cooperating with the arc-shaped plate 3 to form a lifting channel; a lifting frame 5 disposed inside the outer shell 2 for lifting the straw in the lifting channel to the extrusion mechanism; and a driving mechanism for driving the lifting frame 5 to move. The two ends of the rotating shaft of the lifting frame 5 are provided with first layer plates 6. The rotating shaft of the lifting frame 5 is rotatably connected to the first layer plates 6 through bearings. A second layer plate 7 is provided on the outside of the first layer plate 6. The first layer plate 6 and the second layer plate 7 are slidably connected. The second layer plate 7 is slidably connected to the inner wall of the outer shell 2. The moving direction of the second layer plate 7 is inclined backward from bottom to top, and the moving direction of the first layer plate 6 is inclined upward from back to front. The crushed straw enters the lifting channel. The driving mechanism continuously drives the lifting frame 5 to swing. When the lifting frame 5 swings upward, it pushes the straw in the lifting channel to the upper end of the lifting channel. Then, the driving mechanism drives the lifting frame 5 to swing downward to reset. When the lifting frame 5 swings downward, the drive mechanism will drive the first layer plate 6 to move forward a certain distance, and the lifting frame 5 will not push the crushed straw in the lifting channel down.
[0032] The centerline of the arc plate 3 is located on the right side of the shaft of the lifting frame 5. When the horizontal part of the lifting frame swings upward, the lifting frame will move forward as a whole, ensuring that the protrusion at the end of the horizontal part of the lifting frame will not be completely pulled out of the elongated hole, thus ensuring good reliability.
[0033] like Figure 3As shown, the first drive wheels 13 at both ends of the drive shaft 12 are rotatably connected to the inner wall of the outer casing 2 via bearings. The outer casing 2 is equipped with a motor that drives the drive shaft 12 to rotate. The first drive wheel 13 is eccentrically connected to the first shelf 6 via a first connecting rod 14. The first drive wheel 13 is eccentrically connected to the bottom of the lifting frame 5 via a second connecting rod 15. One end of the first connecting rod 14 is rotatably connected to the eccentric position of the first drive wheel 13, and the other end of the first connecting rod 14 is rotatably connected to the first shelf 6. One end of the second connecting rod 15 is rotatably connected to the eccentric position of the first drive wheel 13, and the other end of the second connecting rod 15 is rotatably connected to the bottom of the lifting frame 5. The hinge position of the second connecting rod 15 is symmetrical to the hinge position of the first connecting rod 14. The drive shaft 12 rotates continuously clockwise, causing the first drive wheel 13 to rotate accordingly. When the junction of the second connecting rod 15 and the first drive wheel 13 rotates from top to bottom, the second connecting rod 15 pushes the lifting frame 5 to swing clockwise. Simultaneously, the lifting frame 5 moves backward while swinging clockwise, thus slowly moving forward and pushing the straw in the lifting channel upward. When the hinge point of the second connecting rod 15 and the first drive wheel 13 rotates from bottom to top, the lifting frame 5 swings counterclockwise. At this time, the hinge point of the first connecting rod 14 rotates from top to bottom, causing the lifting frame 5 to swing counterclockwise while moving forward. Thus, while swinging counterclockwise, the lifting frame 5 slowly moves backward. This mechanical structure achieves synchronization of the swinging and moving of the lifting frame 5, eliminating the need for a separate drive mechanism. This results in low cost, high reliability, and a compact cycle time due to the mechanical linkage mechanism.
[0034] like Figure 4 As shown, a rotating shaft 16 is provided on the inner wall of the outer shell 2. The rotating shaft 16 is rotatably connected to the inner wall of the outer shell 2 through a bearing. The drive shaft 12 is connected to the rotating shaft 16 through a belt 17. A second drive wheel 18 is provided on the rotating shaft 16. The outer cylindrical surface of the second drive wheel 18 is provided with arc-shaped teeth 19. A slide rod 20 connected to the second layer plate 7 is provided on the inner wall of the outer shell 2. A rack 21 that meshes with the arc-shaped teeth 19 is provided on the side of the slide rod 20. It also includes a tension spring 22 for pulling the second layer plate 7 back to its original position. When the drive shaft 12 drives the rotating shaft 16 to rotate via the belt 17, the second drive wheel 18 rotates continuously. When the arc-shaped tooth 19 meshes with the rack 21, it pushes the slide rod 20 to move upward against the elastic force of the tension spring 22. In this embodiment, the drive shaft 12 rotates four times and the rotating shaft 16 rotates one time. That is, after the lifting frame 5 swings three times, the crushed straw in the lifting channel is completely pushed into the extrusion mechanism on the fourth time. The extrusion mechanism extrudes and shapes the straw. After the arc-shaped tooth 19 separates from the rack 21, the second layer plate 7 moves down and resets under the action of the tension spring 22. The action is repeated. The crushed straw in the lifting channel can be completely pushed into the extrusion mechanism by a single motor. No separate drive mechanism is required. The cost is low and the mechanical linkage is reliable.
[0035] like Figure 3 As shown, the lifting frame 5 includes a horizontal plate 8 and a vertical plate 9. The pivot of the lifting frame 5 is located at the bending position of the horizontal plate 8 and the vertical plate 9. The lower end of the second connecting rod 15 is rotatably connected to the bottom of the vertical plate 9.
[0036] The arc-shaped plate 3 is provided with a plurality of elongated holes 10 evenly distributed, and the front end of the horizontal plate 8 is provided with a plurality of protrusions 11 that cooperate with the elongated holes 10, with each protrusion 11 corresponding to one of the elongated holes 10.
[0037] like Figure 4 As shown, the drive shaft 12 is provided with a first pulley 23, and the rotating shaft 16 is provided with a second pulley 24. The first pulley 23 and the second pulley 24 are connected by a belt 17.
[0038] like Figure 3 As shown, the inner wall of the outer shell 2 is provided with a guide sleeve 25 for the guide slide rod 20 to move.
[0039] The guide sleeve 25 is provided with connecting plates 26 at both ends. One end of the tension spring 22 is connected to the connecting plate 26, and the other end of the tension spring 22 is connected to the second layer plate 7. The tension springs 22 are symmetrically distributed on both sides of the guide sleeve 25.
[0040] like Figure 5 As shown, the gripping mechanism includes a housing 27 that is inclined downwards from back to front at the front end of the housing 2, and a conveyor belt 28 disposed inside the housing 27. Both ends of the conveyor belt 28 are provided with conveyor rollers for supporting the conveyor belt 28. The two ends of the conveyor roller shaft are supported on the housing 27 and rotatably connected to the inner wall of the housing 27 through bearings. A motor for driving the conveyor belt 28 is provided on the side of the housing 27. Several rows of first levers 29 are evenly arranged on the surface of the conveyor belt 28.
[0041] The lower end of the housing 27 is arc-shaped, and the upper end of the housing 27 is provided with several second levers 30, which correspond to the intervals between several rows of first levers 29. When the vehicle body 1 moves forward, the conveyor belt 28 rotates continuously, and the first levers 29 move the straw into the housing 27 and transport it to the crushing mechanism, realizing the automatic grabbing of straw. When the first levers 29 are flipped, the second levers 30 push the straw off the first levers 29, and the straw will not move continuously with the first levers 29.
[0042] like Figure 2 As shown, the upper end of the outer shell 2 is provided with an extrusion groove 31. The extrusion mechanism includes an extrusion plate 32 disposed in the extrusion groove 31 and moving therein, and a hydraulic cylinder 33 disposed in the extrusion groove 31 to drive the extrusion plate 32 to move. The upper end of the extrusion plate 32 is slidably connected to the inner wall of the extrusion groove 31 through a guide rail slider pair. The cylinder body end of the hydraulic cylinder 33 is fixed on the inner wall of the extrusion groove 31, and the piston rod end of the hydraulic cylinder 33 is connected to the extrusion plate 32.
[0043] In the description of the present invention, it should be noted that the terms "left", "right", "up", "down", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.
[0044] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
Claims
1. A corn stalk crushing device, characterized in that, It includes a vehicle body (1), an outer shell (2) set on the vehicle body (1), a gripping mechanism for gripping corn stalks set at the front end of the outer shell (2), a crushing mechanism for crushing stalks set inside the outer shell (2), a crushing mechanism for squeezing the crushed stalks set at the upper end of the outer shell (2), and a lifting mechanism for lifting the crushed stalks to the crushing mechanism position set inside the outer shell (2). The bottom of the outer shell (2) is provided with an arc plate (3) between the crushing mechanism and the extrusion mechanism. The lifting mechanism includes a limiting plate (4) fixed on the inner wall of the outer shell (2) and forming a lifting channel with the arc plate (3), a lifting frame (5) provided in the outer shell (2) for lifting the straw in the lifting channel to the extrusion mechanism, and a driving mechanism for driving the lifting frame (5) to move. The two ends of the rotating shaft of the lifting frame (5) are provided with a first layer plate (6), and a second layer plate (7) is provided on the outside of the first layer plate (6). The first layer plate (6) and the second layer plate (7) are slidably connected, and the second layer plate (7) is slidably connected to the inner wall of the outer shell (2). The drive mechanism includes a drive shaft (12) disposed inside the housing (2) and rotating inside the housing (2), and first drive wheels (13) disposed at both ends of the drive shaft (12). The first drive wheels (13) are connected to the first layer plate (6) through a first connecting rod (14), and the first drive wheels (13) are rotatably connected to the bottom of the lifting frame (5) through a second connecting rod (15). The inner wall of the outer shell (2) is provided with a rotating shaft (16), the drive shaft (12) is connected to the rotating shaft (16) by a belt (17), the rotating shaft (16) is provided with a second drive wheel (18), the outer cylindrical surface of the second drive wheel (18) is provided with arc-shaped teeth (19), the inner wall of the outer shell (2) is provided with a slide rod (20) connected to the second layer plate (7), the side of the slide rod (20) is provided with a rack (21) that meshes with the arc-shaped teeth (19), and also includes a tension spring (22) for pulling the second layer plate (7) back to its original position. The inner wall of the outer shell (2) is provided with a guide sleeve (25) for the movement of the guide slide rod (20); The guide sleeve (25) is provided with connecting plates (26) at both ends. One end of the tension spring (22) is connected to the connecting plate (26), and the other end of the tension spring (22) is connected to the second layer plate (7).
2. The corn stalk crushing equipment as described in claim 1, characterized in that, The lifting frame (5) includes a horizontal plate (8) and a vertical plate (9).
3. The corn stalk crushing equipment as described in claim 2, characterized in that, The limiting plate (4) is provided with a number of elongated holes (10) evenly distributed, and the front end of the horizontal plate (8) is provided with a number of protrusions (11) that cooperate with the elongated holes (10).
4. The corn stalk crushing equipment as described in claim 1, characterized in that, The drive shaft (12) is provided with a first pulley (23), and the rotating shaft (16) is provided with a second pulley (24). The first pulley (23) and the second pulley (24) are connected by a belt (17).
5. The corn stalk crushing equipment as described in claim 1, characterized in that, The gripping mechanism includes a housing (27) that is inclined downward from back to front at the front end of the housing (2) and a conveyor belt (28) disposed inside the housing (27). The surface of the conveyor belt (28) is uniformly provided with several rows of first levers (29).
6. The corn stalk crushing equipment as described in claim 5, characterized in that, The lower end of the housing (27) is arc-shaped, and the upper end of the housing (27) is provided with several second levers (30), the second levers (30) corresponding to the intervals between several columns of first levers (29).
7. The corn stalk crushing equipment as described in claim 1, characterized in that, The upper end of the outer shell (2) is provided with an extrusion groove (31), and the extrusion mechanism includes an extrusion plate (32) disposed in the extrusion groove (31) and moving therein, and a hydraulic cylinder (33) disposed in the extrusion groove (31) to drive the extrusion plate (32) to move.
Citation Information
Patent Citations
Corn straw separating and crushing device
CN109997529A
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CN113141877A