Corn stalk breaking device

Abstract

This utility model discloses a corn stalk crushing device, belonging to the field of agricultural machinery technology. The device includes a crusher, a feed hopper, and a telescopic outer cover that can be raised and lowered within the feed hopper. It also includes a telescopic assembly comprising a motor, belt, drive wheel, slider, and transmission block. The motor drives the belt to move the slider within a chute, and the slider, in turn, drives the telescopic outer cover to rise and fall via the transmission block, dynamically adjusting the feed space. A screening assembly is also installed below the crusher. This assembly, driven by a motor, uses an eccentric crankshaft and connecting block to cause the screen to vibrate at high frequency, classifying the crushed material. This utility model, through its adjustable feed structure, effectively solves the problems of poor feed adaptability, long stalk clogging, and short stalk splashing caused by fixed feed inlet size in existing technologies. Furthermore, online screening ensures uniformity of the output particle size, significantly improving operational efficiency and resource utilization.

Description

Technical Field

[0001] This utility model relates to a crushing device, and more particularly to a corn stalk crushing device in the field of agricultural machinery technology. Background Technology

[0002] Corn stalks are an important biomass resource with broad application prospects in feed processing, biomass energy and organic fertilizer production. To facilitate subsequent storage, transportation and utilization, the collected corn stalks usually need to be crushed first.

[0003] Existing corn stalk crushing devices generally include a feed hopper and a crushing mechanism located below the feed hopper. In actual operation, the operator feeds the corn stalks into the feed hopper, and the stalks are crushed into smaller pieces by the crushing mechanism. However, the corn stalks collected in agricultural production vary in length and shape, which poses a challenge to the feeding stage of the crushing operation.

[0004] Currently, the feed inlet size of crushing devices on the market is usually fixed. When processing longer corn stalks, the long stalks are prone to bridging or clogging at the limited feed inlet, leading to poor feeding and, in severe cases, equipment blockage, forcing operational interruptions and significantly impacting work efficiency. Conversely, when processing shorter chopped stalks, the fixed feed inlet, due to its larger space, cannot effectively guide and restrain the material, causing short stalks to easily scatter during feeding, resulting in material waste and pollution of the working environment. Therefore, the fixed feed structure of traditional crushing devices has poor adaptability to materials and struggles to achieve efficient and low-loss processing of stalks of different lengths. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides a corn stalk crushing device, which aims to improve the problems of poor feed adaptability and uneven particle size of crushed materials caused by the fixed feed inlet size of existing corn stalk crushing devices.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A corn stalk crushing device includes: a crusher, a drive unit, a feed hopper, and a telescopic outer cover; as well as a telescopic assembly; The telescopic assembly includes a fixed outer shell, a groove formed on the inner wall of the fixed outer shell, at least two drive wheels rotatably connected to the fixed outer shell, a motor for driving the drive wheels to rotate, a belt sleeved on the drive wheels, a slider fixedly connected to the belt and slidably engaged with the groove, and a drive block fixedly connected at one end to the slider and at the other end to the bottom of the telescopic cover.

[0007] Furthermore, the drive is connected to the crusher, the feed hopper is fixedly connected to the top of the crusher, the telescopic cover is disposed inside the feed hopper and can slide in the vertical direction, and the telescopic assembly is connected to the telescopic cover through the connecting block to drive the telescopic cover to rise and fall inside the feed hopper.

[0008] Preferably, the connecting block is slidably fitted onto the outer wall of the fixed housing.

[0009] Preferably, the crusher has a discharge port at the bottom, and the corn stalk crushing device further includes a screening component disposed below the discharge port.

[0010] Preferably, the screening assembly includes a fixed frame, a screen movably connected to the fixed frame, a motor mounted on the fixed frame, a crankshaft connected to the motor output shaft and rotatably connected to the fixed frame via a bearing seat, and a connecting block with one end movably connected to the eccentric end of the crankshaft and the other end hinged to the screen.

[0011] Preferably, the screening assembly further includes a telescopic rotating rod, one end of which is hinged to the side of the screen and the other end is movably connected to the outer wall of the fixed frame.

[0012] Preferably, the screening component further includes a sieve bucket disposed below the sieve.

[0013] Preferably, the screen is inclined.

[0014] Preferably, the crusher is equipped with a set of hammer blades or a set of toothed rollers inside.

[0015] This utility model has the following beneficial effects: 1. In this utility model, by setting a telescopic outer cover that can be raised and lowered inside the feed hopper, and using a telescopic component composed of a motor, belt, slider, etc. to precisely drive its raising and lowering, the problem of fixed feed inlet size of the crushing device in the prior art, which makes it difficult to adapt to straw of different lengths, resulting in long straw being easy to block, short straw being easy to splash, and low feeding efficiency is achieved. The technical effect of being able to dynamically adjust the feeding space according to the straw length is achieved, realizing smooth, efficient and low-loss feeding.

[0016] 2. In this utility model, by integrating a screening component driven by a motor, eccentric crankshaft and connecting rod mechanism below the crusher, the problem of uneven particle size and lack of effective grading of crushed materials in the prior art, resulting in low resource utilization, is solved. It achieves the technical effect of online screening of crushed materials, automatic separation of qualified fine materials and unqualified coarse materials, and guiding coarse materials to undergo secondary crushing, thereby ensuring uniform particle size of the final product and improving resource utilization. Attached Figure Description

[0017] Figure 1 This is a perspective view of the corn stalk crushing device proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of the fixing frame of the corn stalk crushing device proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of the crankshaft of the corn stalk crushing device proposed in this utility model.

[0020] Figure 4 This is a schematic diagram of the telescopic outer cover of the corn stalk crushing device proposed in this utility model.

[0021] Figure 5 This is a schematic diagram of the belt conveyor of the corn stalk crushing device proposed in this utility model.

[0022] Legend: 1. Crusher; 2. Feed hopper; 3. Telescopic cover; 4. Telescopic assembly; 401. Transmission block; 402. Slide chute; 403. Fixed outer shell; 404. Motor; 405. Belt; 406. Transmission wheel; 407. Slider; 5. Driver; 6. Screening assembly; 601. Fixing frame; 602. Telescopic rotating rod; 603. Screen; 604. Screen bucket; 605. Motor; 606. Crankshaft; 607. Connecting block; 7. Discharge port. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figures 1-5This utility model provides an embodiment of a corn stalk crushing device, including a crusher 1 and a driver 5. The driver 5 is connected to the crusher 1 to provide power to the crusher 1. The crusher 1 is equipped with a hammer assembly or a toothed roller assembly. A feed hopper 2 is fixedly connected to the top of the crusher 1, and a discharge port 7 is provided at the bottom of the crusher 1. A telescopic cover 3 is provided inside the feed hopper 2, and the telescopic cover 3 can slide vertically inside the feed hopper 2. The corn stalk crushing device also includes a telescopic assembly 4 for driving the telescopic cover 3 to rise and fall. The telescopic assembly 4 includes a fixed outer shell 403, and a sliding groove 402 is opened on the inner wall of the fixed outer shell 403. At least two transmissions are rotatably connected to the fixed outer shell 403. A motor 404 is mounted on a drive wheel 406 and a fixed housing 403. The motor 404 drives the drive wheel 406 to rotate. A belt 405 is fitted onto at least two drive wheels 406. A slider 407 is fixedly connected to the belt 405 and slides in a groove 402. One end of a transmission block 401 is fixedly connected to the slider 407, and the other end is fixedly connected to the bottom of the telescopic cover 3. The transmission block 401 slides in a groove on the outer wall of the fixed housing 403. A screening assembly 6 is provided below the discharge port 7. The screening assembly 6 includes a fixed frame 601, a telescopic rotating rod 602, a screen 603, a screen bucket 604, a motor 605, a crankshaft 606, and a connecting block 607.

[0025] The telescopic assembly 4 has a fixed housing 403 serving as the mounting base. A pair of parallel grooves 402 are formed on the inner wall of the fixed housing 403. A motor 404 is mounted on the fixed housing 403, and drive wheels 406 are rotatably connected to both ends of the fixed housing 403. The motor 404 drives the drive wheels 406 to rotate. A belt 405 is fitted onto the two drive wheels 406 to transmit power. A slider 407 is fixedly connected to the belt 405 and slidably accommodated within the grooves 402. The slider 407 moves linearly within the grooves 402 as the belt 405 circulates. Reciprocating motion; one end of the transmission block 401 is fixedly connected to the slider 407, its main body slides against the outer wall of the fixed housing 403, and its other end extends upward and is fixedly connected to the bottom of the telescopic cover 3. This transmission structure, in which the motor 404 drives the belt 405, the belt 405 drives the slider 407 to move in the slide groove 402, and the slider 407 then drives the telescopic cover 3 to rise and fall through the transmission block 401, accurately converts the rotational motion of the motor 404 into the linear motion of the telescopic cover 3 in the vertical direction, thereby ensuring the smoothness of the adjustment process and the accuracy of the positioning.

[0026] To achieve efficient crushing of corn stalks, the crusher 1 is equipped with a hammer mill or toothed roller mill. To classify the crushed material and improve resource utilization, the crusher 1 has a discharge port 7 at its bottom, and a screening assembly 6 is installed below the discharge port 7. The screening assembly 6 includes a fixed frame 601 as its mounting base; a screen 603 is movably connected to the fixed frame 601 and is inclined to facilitate material conveying and separation; a motor 605 is mounted on the fixed frame 601, and the output shaft of the motor 605 is connected to a crankshaft 606. 606 is rotatably connected to the fixed frame 601 via a bearing seat. One end of the connecting block 607 is movably connected to the eccentric end of the crankshaft 606, and the other end is hinged to the screen 603. In order to limit and guide the movement trajectory of the screen 603 and prevent jamming or deviation when it shakes violently, the screening assembly 6 also includes a telescopic rotating rod 602. One end of the telescopic rotating rod 602 is hinged to the side of the screen 603, and the other end is movably connected to the outer wall of the fixed frame 601. In order to collect qualified materials passing through the screen 603, a screen hopper 604 is also provided below the screen 603.

[0027] Working principle: When crushing corn stalks, the motor 404 inside the telescopic assembly 4 is started according to the actual length of the corn stalks to be crushed. The rotation of the motor 404 is transmitted through the transmission wheel 406 and the belt 405, driving the slider 407 fixed on the belt 405 to slide smoothly in the groove 402 on the inner wall of the fixed housing 403. Since one end of the transmission block 401 is fixedly connected to the slider 407 and the other end is fixedly connected to the telescopic cover 3, the linear motion of the slider 407 is converted into the vertical lifting and lowering motion of the telescopic cover 3 inside the feed hopper 2 through the transmission block 401. When processing long stalks, the telescopic cover 3 is raised to increase the effective feeding space of the feed hopper 2 and avoid stalk jamming. When processing short stalks, it is retracted downward to guide the stalks into the crushing channel and reduce material splashing loss. Through this synergistic effect of the telescopic assembly 4 and the telescopic cover 3, this utility model solves the problem of poor feeding adaptability caused by the fixed size of the feed inlet in the prior art.

[0028] After the feed inlet is properly adjusted, the driver 5 is started to provide power to the crusher 1. The hammer or toothed roller assembly inside the crusher 1 begins to rotate at high speed, shearing and impact-crushing the corn stalks entering from the feed hopper 2. The crushed material is continuously conveyed to the screening assembly 6 through the discharge port 7 at the bottom of the equipment. In the screening assembly 6, after the motor 605 starts, it drives the crankshaft 606 connected to the output shaft to rotate eccentrically in the bearing seat of the fixed frame 601. The eccentric end of the crankshaft 606 drives the screen 603 to vibrate at high frequency through the connecting block 607. During the shaking process, the telescopic rotating rod 602 limits and guides the movement trajectory of the screen 603 through its extension, retraction and rotation, effectively preventing the screen 603 from jamming or shifting due to violent shaking. After crushing, smaller straw particles fall through the mesh of the screen 603 into the lower screen hopper 604 and are discharged from the screen hopper 604. Larger, incompletely crushed straw particles are discharged from their end for secondary crushing due to the inclined setting of the screen 603 and continuous shaking, ensuring that the crushed particle size of the material meets the requirements for subsequent use and improving resource utilization.

Claims

1. A corn stalk crushing device, comprising: The system comprises: a crusher (1) and a driver (5), the driver (5) being connected to the crusher (1) to provide power; a feed hopper (2), the feed hopper (2) being fixedly connected to the top of the crusher (1); a telescopic cover (3), the telescopic cover (3) being disposed inside the feed hopper (2) and being slidable in the vertical direction; characterized in that it further comprises: a telescopic assembly (4), the telescopic assembly (4) comprising: a fixed outer shell (403), a chute (402), the chute (402) being formed on the inner wall of the fixed outer shell (403), and at least two drive wheels (406), the drive wheels (406) rotating The following components are connected to the fixed housing (403): a motor (404), a belt (405), a slider (407), a slide block (401), a transmission ...4), a transmission block (404), a transmission block (404), a transmission block (404), a transmission block ( 2. The corn stalk crushing device according to claim 1, characterized in that: The transmission block (401) is slidably fitted on the outer wall of the fixed housing (403).

3. The corn stalk crushing device according to claim 1, characterized in that: The crusher (1) is provided with a discharge port (7) at the bottom and also includes a screening component (6) located below the discharge port (7).

4. The corn stalk crushing device according to claim 3, characterized in that: The screening component (6) includes: a fixed frame (601), a screen (603) movably connected to the fixed frame (601), a motor (605) mounted on the fixed frame (601), a crankshaft (606) connected to the output shaft of the motor (605) and rotatably connected to the fixed frame (601) through a bearing seat, and a connecting block (607) one end of the connecting block (607) movably connected to the eccentric end of the crankshaft (606) and the other end hinged to the screen (603).

5. The corn stalk crushing device according to claim 4, characterized in that: The screening component (6) also includes a telescopic rotating rod (602), one end of which is hinged to the side of the screen (603), and the other end is movably connected to the outer wall of the fixed frame (601).

6. The corn stalk crushing device according to claim 4, characterized in that: The screening component (6) also includes a sieve bucket (604) disposed below the sieve (603).

7. The corn stalk crushing device according to claim 4 or 6, characterized in that: The screen (603) is set at an angle.

8. The corn stalk crushing device according to claim 1 or 3, characterized in that: The crusher (1) is equipped with a set of hammer blades or a set of toothed rollers inside.

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