Crop straw recycling and crushing device

Abstract

The utility model discloses a kind of crop straw recovery and crushing device, including crushing box, multiple groups of mutually matched crushing cutting components are installed in the crushing box, its top is equipped with feed hopper, the feed hopper is equipped with pusher component, the pusher component is equipped with magnet block, the bottom of the crushing box is equipped with discharge channel, the discharge channel is equipped with screening component, and the present crop straw recovery and crushing device is high in crushing efficiency: the synergic effect of staggered arrangement's crushing blade and pusher component, ensure that straw continuous feeding and crushing is sufficient, improve the processing capacity per unit time;Discharge quality is stable: vibrating screening component realizes material classification by reciprocating motion, ensure that the straw after crushing and the soil separation of inclusion discharged, meet subsequent processing requirement;Strong safety: magnet block can remove metal impurities in advance, avoid its into crushing system cause blade wear or equipment failure, prolong the service life of device.

Description

Technical Field

[0001] This utility model relates to the field of straw treatment technology, specifically to a crop straw recycling and crushing device. Background Technology

[0002] Wheat and rice, as major food crops in my country, generate a large amount of straw resources after harvest. Specialized processing of straw using straw crushers can significantly improve the comprehensive utilization rate of wheat and rice straw, achieving multiple benefits. Professionally crushed straw has wide applications in various fields, such as livestock and poultry breeding, organic fertilizer production, biomass energy production, and industrial and innovative applications. However, existing crop straw recycling and crushing devices are prone to straw entanglement during feeding, leading to frequent blockages at the feed inlet. Furthermore, iron objects (such as wires and nails) embedded in the straw can easily damage the crushing blades, making it difficult to effectively separate the crushed straw from the mixed soil. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a crop straw recycling and crushing device that can prevent the feed inlet from being blocked, clean up iron products mixed in with the straw, and separate the crushed straw from the mixed soil, thus effectively solving the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A crop straw recycling and crushing device includes a crushing box, inside which multiple sets of cooperating crushing and cutting components are installed. A feeding hopper is provided at the top of the crushing box, and a pushing component is installed at the feeding hopper. The pushing component is equipped with a magnet. A discharge channel is opened at the bottom of the crushing box, and a screening component is installed at the discharge channel.

[0006] As a preferred technical solution of this utility model, the crushing and cutting assembly includes a crushing connecting rod rotatably connected to the crushing chamber, with multiple crushing blades arranged on its circumference, and the crushing blades on two adjacent crushing connecting rods are arranged in an alternating manner. A first drive motor is connected to the top of the crushing connecting rod, and the first drive motor is located on the upper surface of the crushing chamber.

[0007] As a preferred technical solution of this utility model, the pushing assembly includes a lifting hydraulic cylinder disposed on the upper surface of the crushing box, a lifting connecting bracket mounted on its top, a pushing plate disposed at the bottom edge of the lifting connecting bracket, and a plurality of pushing rods disposed at the bottom of the pushing plate.

[0008] As a preferred embodiment of this utility model, the edge of the pusher plate is bent upwards.

[0009] As a preferred embodiment of this utility model, multiple magnet blocks are provided, all located on the upper surface of the pusher plate.

[0010] As a preferred technical solution of this utility model, the screening assembly includes two translational supports connected to the lower surface of the crushing box. Each translational support has a limiting groove on its side, and a slider is slidably connected in the limiting groove. A screening mounting frame is connected between the two sliders, and a screen is installed obliquely in the screening mounting frame. A return spring is connected between the corresponding slider and the translational support. A second drive motor is provided at the edge of the bottom of the crushing box, and its output shaft is connected to an elliptical wheel that cooperates with the screening mounting frame.

[0011] As a preferred embodiment of this utility model, a removable maintenance cover is installed at the opening on the side of the crushing chamber by screws.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. High crushing efficiency: The synergistic effect of the staggered crushing blades and the feeding component ensures continuous feeding and thorough crushing of straw, increasing the processing capacity per unit time;

[0014] 2. Stable output quality: The vibrating screen component achieves material classification through reciprocating motion, ensuring that the discharged crushed straw is separated from the mixed soil, meeting the needs of subsequent processing (such as feed processing, fertilizer production, etc.).

[0015] 3. High safety: The magnetic block can remove metal impurities in advance, preventing them from entering the crushing system and causing blade wear or equipment failure, thus extending the service life of the device;

[0016] 4. Convenient operation and maintenance: The feeding component automatically feeds materials, reducing manual intervention. The removable maintenance cover facilitates internal inspection, blade replacement, and cabinet cleaning, reducing operation and maintenance costs.

[0017] 5. Compact and reasonable structure: The layout of each component is optimized (such as external drive motor and screening component integrated at the bottom), saving space and facilitating installation and debugging, making it suitable for various scenarios such as fields and workshops. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the structure from another direction of the present invention.

[0020] Figure 3 This is a partial cross-sectional structural diagram of the present invention.

[0021] Figure 4This is a partial cross-sectional structural diagram of the present invention from another direction.

[0022] In the diagram: 1. Crushing box; 2. First drive motor; 3. Push rod; 4. Push plate; 5. Lifting hydraulic cylinder; 6. Magnet block; 7. Feed hopper; 8. Horizontal support; 9. Screen; 10. Screening mounting frame; 11. Return spring; 12. Limiting groove; 13. Slider; 14. Elliptical wheel; 15. Second drive motor; 16. Maintenance cover plate; 17. Discharge channel; 18. Lifting connecting bracket; 19. Crushing blade; 20. Crushing connecting rod. 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] Please see Figure 1-4 This utility model provides a technical solution:

[0025] A crop straw recycling and crushing device includes a crushing box 1, which is equipped with multiple sets of cooperating crushing and cutting components. The top of the crushing box 1 is provided with a feeding hopper 7, and a pushing component is installed at the feeding hopper 7. The pushing component is equipped with a magnet block 6. The bottom of the crushing box 1 is provided with a discharge channel 17, and a screening component is installed at the discharge channel 17.

[0026] The crushing and cutting assembly includes a crushing connecting rod 20 rotatably connected inside the crushing chamber 1, with multiple crushing blades 19 arranged on its circumference, and the crushing blades 19 on two adjacent crushing connecting rods 20 are arranged in an alternating manner. A first drive motor 2 is connected to the top of the crushing connecting rod 20, and the first drive motor 2 is located on the upper surface of the crushing chamber 1.

[0027] The feeding assembly includes a lifting hydraulic cylinder 5 set on the upper surface of the crushing box 1, a lifting connecting bracket 18 on its top, a feeding plate 4 at the bottom edge of the lifting connecting bracket 18, and multiple feeding rods 3 at the bottom of the feeding plate 4.

[0028] The edge of the pusher plate 4 is bent upwards.

[0029] Multiple magnet blocks 6 are provided, all located on the upper surface of the pusher plate 4.

[0030] The screening assembly includes two translational supports 8 connected to the lower surface of the crushing chamber 1. Each translational support 8 has a limiting groove 12 on its side. A slider 13 is slidably connected in the limiting groove 12. A screening mounting frame 10 is connected between the two sliders 13. A screen 9 is installed at an angle in the screening mounting frame 10. A return spring 11 is connected between the corresponding slider 13 and the translational support 8. A second drive motor 15 is provided at the edge of the bottom of the crushing chamber 1. Its output shaft is connected to an elliptical wheel 14 that cooperates with the screening mounting frame 10.

[0031] A removable maintenance cover 16 is installed at the opening on the side of the pulverizing chamber 1 by screws.

[0032] The working process of this crop straw recycling and crushing device is as follows:

[0033] Feeding and pretreatment: The straw is fed into the feeding device through the feeding hopper 7. The pushing component is activated, and the lifting hydraulic cylinder 5 drives the lifting connecting bracket 18 to descend, which in turn moves the pushing plate 4 and the bottom pushing rod 3 downward, pushing the straw into the crushing box 1 at a uniform speed. The upward bending design of the pushing plate 4 can prevent the straw from overflowing. The multiple magnets 6 on its upper surface adsorb metal impurities such as iron nails and iron wires mixed in with the straw, avoiding damage to subsequent components.

[0034] Crushing and cutting: Multiple crushing and cutting components in the crushing box 1 work synchronously. The first drive motor 2 drives the crushing connecting rod 20 to rotate, and the crushing blades 19 on its circumference rotate at high speed. The crushing blades 19 on adjacent crushing connecting rods 20 are arranged in an alternating manner, forming a shearing and tearing effect on the straw, crushing it into fine particles.

[0035] Screening and Discharge: The crushed material falls onto the screen 9 of the screening assembly through the bottom discharge channel 17. The second drive motor 15 drives the elliptical wheel 14 to rotate. The elliptical wheel periodically pushes the screening mounting frame 10. With the elastic force of the return spring 11, the screening mounting frame 10 slides back and forth in the limiting groove 12 of the translation bracket 8 through the slider 13, realizing the vibration of the screen 9. This effectively separates the crushed straw from the mixed soil. The crushed straw is then discharged along the screen 9 under the guidance of the inclined screen 9, making it easy to collect the crushed straw.

[0036] Convenience of maintenance: When inspection or cleaning is required, the internal components can be quickly accessed by removing the maintenance cover 16 on the side of the crushing chamber 1, improving maintenance efficiency.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A crop straw recycling and crushing device, comprising a crushing chamber (1), characterized in that: The crushing box (1) is equipped with multiple sets of cooperating crushing and cutting components. The top of the crushing box (1) is provided with a feeding hopper (7). The feeding hopper (7) is equipped with a pushing component. The pushing component is equipped with a magnet block (6). The bottom of the crushing box (1) is provided with a discharge channel (17). The discharge channel (17) is equipped with a screening component.

2. The crop straw recycling and crushing device according to claim 1, characterized in that: The crushing and cutting assembly includes a crushing connecting rod (20) rotatably connected inside the crushing box (1), with multiple crushing blades (19) arranged on its circumference, and the crushing blades (19) on two adjacent crushing connecting rods (20) are arranged in an alternating manner. A first drive motor (2) is connected to the top of the crushing connecting rod (20), and the first drive motor (2) is located on the upper surface of the crushing box (1).

3. The crop straw recycling and crushing device according to claim 1, characterized in that: The feeding assembly includes a lifting hydraulic cylinder (5) disposed on the upper surface of the crushing box (1), with a lifting connecting bracket (18) mounted on its top. A feeding plate (4) is provided at the bottom edge of the lifting connecting bracket (18), and multiple feeding rods (3) are provided at the bottom of the feeding plate (4).

4. The crop straw recycling and crushing device according to claim 3, characterized in that: The edge of the pusher plate (4) is bent upward.

5. The crop straw recycling and crushing device according to claim 3, characterized in that: Multiple magnet blocks (6) are provided, all located on the upper surface of the pusher plate (4).

6. The crop straw recycling and crushing device according to claim 1, characterized in that: The screening assembly includes two translation brackets (8) connected to the lower surface of the crushing box (1). Each translation bracket (8) has a limiting groove (12) on its side. A slider (13) is slidably connected in the limiting groove (12). A screening mounting frame (10) is connected between the two sliders (13). A screen (9) is installed obliquely in the screening mounting frame (10). A return spring (11) is connected between the corresponding slider (13) and the translation bracket (8). A second drive motor (15) is provided at the bottom edge of the crushing box (1). Its output shaft is connected to an elliptical wheel (14) that cooperates with the screening mounting frame (10).

7. The crop straw recycling and crushing device according to claim 1, characterized in that: The opening on the side of the crushing chamber (1) is fitted with a removable maintenance cover (16) by screws.

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