Self-elevating straw automatic pulverizer
Through the design of the jack-up straw automatic crusher, the combined movement of clamping rod and cutting blade is adopted, which solves the problem that traditional equipment is difficult to crush straw, and achieves efficient crushing and organic matter improvement.
Patent Information
- Application Number
- CN202510813706.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-18
- Publication Date
- 2025-08-15
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Traditional equipment is difficult to crush a large amount of straw stably and efficiently, resulting in difficulty in generating pollutants and increasing the content of soil organic matter.
A jack-up straw automatic crusher is designed, using four clamping rods to clamp the end of the straw, combined with multiple cutting and lifting movements of the cutting blade, to achieve automatic crushing of the straw, and collect the crushed straw through the collection box.
The stable clamping and multiple cutting of straw are achieved, the crushing efficiency is improved, pollutant emissions are reduced, and the soil organic matter content is improved.
Smart Images

Figure CN120476874A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of mechanical equipment related to crop production and processing, in particular to a self-lifting automatic straw crusher. Background Art
[0002] Straw is a general term for the stems and leaves (ears) of mature crops. Straw itself is rich in nitrogen, phosphorus, potassium, calcium, magnesium and organic matter, and is a multi-purpose renewable biological resource. Straw is also a roughage, characterized by a high crude fiber content (30%-40%), and contains lignin, etc. Therefore, in order to avoid pollution, straw can be crushed. Crushing destroys the structure of the straw by physical means, replacing traditional burning methods, avoiding the generation of air pollutants and destroying the organic matter on the soil surface. Data show that crushing and returning to the field can increase the organic matter content in the soil by 0.1%-0.3%. After crushing, the straw is in full contact with the soil under mechanical turning and pressing, which promotes microbial activity and accelerates the mineralization process of organic matter. However, in actual operation, it is difficult for traditional equipment to stably achieve the cutting and crushing of large amounts of straw. Summary of the Invention
[0003] In order to meet the above-mentioned demand for straw crushing, the present invention proposes a self-lifting automatic straw crusher.
[0004] The technical problem to be solved by the present invention is achieved by adopting the following technical solutions:
[0005] A self-elevating automatic straw shredder comprises a main housing with four clamping rods mounted on its upper portion, each of which is equipped with a main turntable. The main turntable is connected to a clamping drive assembly for clamping straw. A collection box is mounted on the bottom of the main housing, and a mobile base is mounted on its lower portion. The mobile base is connected to a lifting assembly for controlling its vertical movement. A transverse shredding assembly for cutting and shredding the straw is mounted on the mobile base. The collection box collects and stores the shredded straw. The main turntable is concentrically arranged with the upper portion of the main housing.
[0006] The beneficial effects of the present invention are:
[0007] The present invention can control the radial movement of four clamping rods to clamp and secure the ends of the straw, facilitating comminution. The cutting blades can be controlled to move upward, and during each upward interval, the cutting blades are controlled to move back and forth to cut the straw, achieving multiple cuts and automatic comminution of the straw. The comminuted straw can also be automatically collected and extracted. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] The present invention will be further described below with reference to the accompanying drawings and examples.
[0009] Figure 1 It is a perspective view of the present invention;
[0010] Figure 2 yes Figure 1 A local enlarged view of location I;
[0011] Figure 3 yes Figure 1 A partial enlarged view of location II;
[0012] Figure 4 is a top view of the present invention;
[0013] Figure 5 yes Figure 4 AA section view;
[0014] Figure 6 This is a structural diagram of the present invention after removing the main body shell;
[0015] Figure 7 yes Figure 6 A partial enlarged view of point III;
[0016] Figure 8 It is a schematic diagram of the connection relationship between the linkage rod and the auxiliary rod.
[0017] In the figure: 1. Main body outer shell; 1a. Inner ring groove; 1b. Outer ring groove; 2. Clamping rod; 2a. Arc clamping surface; 2b. Round rod part; 3. Main turntable; 3a. Arc groove; 4. Auxiliary rod; 5. Linkage rod; 6. Motor I; 7. Sprocket; 8. Chain; 9. Collection box; 10. Mobile base; 10a. Lateral groove; 11. Motor II; 12. Vertical rod; 13. Lead screw; 14. Slide; 15. Motor III; 16. L-shaped rocker; 17. Tool handle; 17a. Rocking groove; 18. Cutting blade; 19. Cover door; 20. Auxiliary rod; 21. Spring; 22. Pad. DETAILED DESCRIPTION
[0018] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be explained more clearly and completely below in conjunction with the drawings in the embodiments. Of course, the described embodiments are only a part of the present invention, not all of it. Based on this embodiment, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.
[0019] like Figure 1 、 Figure 2 、 Figure 4 as well as Figure 5As shown, a self-elevating automatic straw shredder comprises a main housing 1, with four clamping rods 2 disposed on its upper portion. Each of these clamping rods 2 is coupled to a main turntable 3. The main turntable 3 is connected to a clamping drive assembly for clamping straw. A collection box 9 is mounted on the bottom of the main housing 1. A mobile base 10 is disposed on its lower portion, connected to a lifting assembly for controlling its vertical movement. A transverse shredding assembly for cutting and shredding the straw is mounted on the mobile base 10. The collection box 9 collects and stores the shredded straw. The main turntable 3 is concentrically arranged with the upper portion of the main housing 1.
[0020] like Figure 1 As shown, as an improvement of the present invention, in order to facilitate the extraction and placement of the collection box 9, a through slot can be opened on the side wall of the main body outer shell 1, and a cover door 19 can be hingedly installed at the through slot.
[0021] like Figure 2 As shown, each clamping rod 2 has a curved clamping surface 2a near the center of the main body outer shell 1. Each clamping rod 2 also has a rounded rod portion 2b. The main turntable 3 is equipped with four curved slots 3a, into which the corresponding rounded rod portion 2b slides and is hingedly mounted. When closed, these four curved clamping surfaces 2a provide a stable grip on bundled straw. This is a conventional design for a sliding mechanism. The four clamping rods 2 are evenly distributed in a circular pattern, centered around the center of the main body outer shell 1.
[0022] like Figure 2 as well as Figure 6 As shown, a sleeve 14 is welded to the inner wall of the main housing 1, which slides each rod portion 2b. By restricting the double sliding fit of the clamping rods 2, the four clamping rods 2 can move synchronously toward or away from the center of the main housing 1 when the main turntable 3 rotates.
[0023] like Figure 1 and Figure 2 As shown, auxiliary rods 4 and linkage rods 5 are welded to the main turntable 3. An inner circular groove 1a is provided on the inner wall of the main housing 1, into which the auxiliary rods 4 are slidably mounted. This sliding structure not only stably supports the main turntable 3 but also provides guidance for its stable rotation.
[0024] like Figure 1 and Figure 3 As shown, the outer surface of the mainframe housing 1 is provided with an outer ring groove 1b. The clamping drive assembly includes a chain 8 driven and mounted in outer ring groove 1b, a sprocket 7 drivingly connected to chain 8, and a motor 6 connected to sprocket 7. Motor 6 is fixedly mounted on the outer wall of the mainframe housing 1. The above is the structural design for controlling the transmission of chain 8.
[0025] like Figure 2、 Figure 3 as well as Figure 8 As shown, the linkage rod 5 has a built-in groove 5a, into which an auxiliary rod 20 fixedly connected to the chain 8 is slidably mounted. A spring 21 connected to the auxiliary rod 20 is mounted within the built-in groove 5a. This elastic structure effectively ensures that the entire main turntable 3 can rotate around its own center when the chain 8 is transmitting.
[0026] like Figures 4 to 6 As shown, the lifting assembly includes a motor 11 (number II) and a vertical rod 12, both mounted on the inner wall of the mainframe housing 1. Motor 11 is connected to a lead screw 13, which is connected to the mobile base 10. Vertical rod 12 slides with the mobile base 10. Lead screw 13 is mounted on the inner wall of the mainframe housing 1 via a bearing. This allows the entire mobile base 10 to move up and down, driven by the lead screw and nut.
[0027] like Figure 6 and Figure 7 As shown, the transverse shredding assembly includes a pad 22 mounted on a mobile base 10 and a motor 15. Motor 15 is connected to an L-shaped rocker 16, which is coupled to a handle 17, which is connected to a cutting blade 18. During the lifting process, the cutting blade 18 and pad 22 are controlled to close together, thereby achieving a cutting-type shredding of the straw.
[0028] like Figure 7 As shown, the handle 17 is provided with a rocking groove 17a that slides and hinges with the L-shaped rocking arm 16. That is, under the rotation of the L-shaped rocking arm 16, the cutting blade 18 can slide back and forth to continuously cut and crush the straw.
[0029] like Figure 7 As shown, the movable base 10 is provided with a lateral groove 10a for slidingly mounting the tool handle 17. The above is a conventional design of the sliding structure.
[0030] Before use, one person only needs to place one end of each bundle of straw between the four clamping rods 2 .
[0031] When in use, the main turntable 3 is rotated by driving the No. 1 motor 6, so that the four clamping rods 2 are closed and the ends of the bundle of straw are clamped and fixed.
[0032] Furthermore, motor II (11) intermittently rotates lead screw (13), causing movable base (10) and cutting blade (18) to intermittently ascend. During each ascending pause, motor III (15) rotates L-shaped rocker (16) one revolution, allowing cutting blade (18) to slide back and forth once and close with pad (22), completing a single cut of the straw. After these multiple cuts, the straw is automatically pulverized. The pulverized straw automatically falls into collection bin (9), where it is collected.
[0033] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and description merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.
Claims
1. A self-elevating straw automatic crusher, comprising a main body outer shell (1), characterized in that: The main machine housing (1) is provided with four clamping rods (2) on the upper part, and the four clamping rods (2) are all matched with a main turntable (3); the main turntable (3) is connected to a clamping drive assembly; a collecting box (9) is installed at the bottom of the main machine housing (1); a mobile base (10) is provided at the lower part of the main machine housing (1); the mobile base (10) is connected to a lifting assembly for controlling the upward and downward movement of the mobile base (10); and a transverse crushing assembly for cutting and crushing straw is installed on the mobile base (10).
2. The self-elevating straw automatic crusher according to claim 1, characterized in that: Each clamping rod (2) is provided with an arc-shaped clamping surface (2a) on one side close to the center of the main machine outer shell (1); each clamping rod (2) is provided with a round rod portion (2b); and the main turntable (3) is provided with four arc-shaped grooves (3a) for sliding and hingedly mounting the corresponding round rod portions (2b).
3. The self-elevating straw automatic crusher according to claim 2, characterized in that: An auxiliary rod (4) and a linkage rod (5) are respectively welded on the main turntable (3); and an inner ring groove (1a) for slidingly mounting the auxiliary rod (4) is provided on the inner wall of the main machine outer shell (1).
4. The self-elevating straw automatic crusher according to claim 3, characterized in that: An outer ring groove (1b) is provided on the outer side of the main machine housing (1); the clamping drive assembly comprises a chain (8) installed at the outer ring groove (1b), a sprocket (7) connected to the chain (8) and a No. 1 motor (6) connected to the sprocket (7); the No. 1 motor (6) is fixedly installed on the outer side wall of the main machine housing (1).
5. The self-elevating straw automatic crusher according to claim 4, characterized in that: The linkage rod (5) is provided with a built-in groove (5a), and an auxiliary rod (20) fixedly connected to the chain (8) is slidably installed at the built-in groove (5a); a spring (21) connected to the auxiliary rod (20) is installed inside the built-in groove (5a).
6. The self-elevating straw automatic crusher according to claim 2, characterized in that: A sliding sleeve (14) for slidingly mounting each round rod portion (2b) is welded on the inner wall of the main machine outer shell (1).
7. The self-elevating straw automatic crusher according to claim 1, characterized in that: The lifting assembly comprises a No. II motor (11) and a vertical rod (12) both mounted on the inner wall of the main body outer shell (1); the No. II motor (11) is connected to a lead screw (13) connected to a movable base (10); and the vertical rod (12) is in sliding engagement with the movable base (10).
8. The self-elevating straw automatic crusher according to claim 1, characterized in that: The transverse crushing assembly comprises a pad (22) mounted on a mobile base (10) and a No. III motor (15); the No. III motor (15) is connected to an L-shaped rocker (16), the L-shaped rocker (16) is matched with a knife handle (17), and the knife handle (17) is connected to a cutting blade (18).
9. The self-elevating straw automatic pulverizer according to claim 8, characterized in that: The knife handle (17) is provided with a rocking groove (17a) which slides and hinges with the L-shaped rocking rod (16).
10. The self-elevating straw automatic pulverizer according to claim 8, characterized in that: The movable base (10) is provided with a lateral groove (10a) for slidingly installing the knife handle (17).