Crop straw treatment device
By introducing a wiping block and a translation mechanism into the straw processing device, the problems of high manufacturing precision and easy damage of the crushing blades are solved, achieving efficient cleaning and grinding, reducing costs and improving crushing efficiency.
Patent Information
- Application Number
- CN202520271958.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-20
AI Technical Summary
Existing straw processing devices require high manufacturing precision in the crushing blades, making them prone to damage. Furthermore, deformation of the crushing blades can lead to inaccurate positioning of the cleaning and wiping frame, resulting in collisions and increasing manufacturing costs and the risk of damage.
A device comprising a crushing blade, a wiping block, and a translation mechanism was designed. The translation mechanism drives the wiping block to move along the length of the crushing blade, and in conjunction with a whetstone, it performs cleaning and polishing, thereby reducing manufacturing precision requirements and improving crushing efficiency.
It enables efficient cleaning of the shredder blades without cumbersome operations, reduces manufacturing costs, avoids collision damage, maintains blade sharpness, and improves shredding efficiency.
Smart Images

Figure CN223885767U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural equipment technology, specifically to a crop straw processing device. Background Technology
[0002] Straw is the remaining stem and leaf parts of crops after maturity and harvesting, widely derived from various crops such as wheat, rice, and corn. It is an important agricultural waste, rich in biomass energy, and can be used for various purposes such as feed, fuel, fertilizer, and industrial raw materials, making it a crucial resource in the agricultural circular economy. Crushing straw increases its surface area, making it easier to decompose and transform, thus improving its utilization rate. Whether used as feed, fertilizer, or industrial raw material, crushed straw can more fully realize its value.
[0003] Chinese patent CN221510345U discloses an agricultural crop straw processing device. The device, through the cooperation between positioning holes and positioning columns, as well as top plate and limiting block, can place the upright plate inside the crushing box, so that each crushing blade can pass through the corresponding wiping frame when rotating, thereby facilitating the wiping and cleaning of each crushing blade and preventing the crushing blade from rusting or becoming dull.
[0004] When using the aforementioned patent, it is necessary to ensure the accuracy of the wiping frame position. If there is a slight difference in the position of the wiping frame, it will cause the crushing blade to collide with the wiping frame when rotating, resulting in damage to the blade. This leads to very high manufacturing precision requirements for the device, which not only increases the technical difficulty in the manufacturing process but also significantly increases the manufacturing cost.
[0005] Furthermore, after a period of use, especially when crushing harder straw, the shredder blades may become slightly deformed. When cleaning them with the wiping frame, collisions may occur, leading to damage to the device. Utility Model Content
[0006] To solve the above-mentioned technical problems, this utility model provides a crop straw processing device, including a crushing box and crushing blades. A bracket is installed on the top of the crushing box, and a crushing motor is installed on the top of the bracket. A connecting shaft is connected to the end of the output shaft of the crushing motor, and the end of the connecting shaft extends into the interior of the crushing box. Four sets of crushing blades are installed coaxially and at equal angles on the outer surface of the connecting shaft. Each set of crushing blades includes multiple crushing blades equidistantly arranged in a vertical direction. A wiping block is fitted on the outer surface of the crushing blades, and the inner wall of the wiping block is in contact with the outer surface of the crushing blades. The multiple wiping blocks arranged in the vertical direction are connected by a connecting rod A. A translation mechanism is provided on the upper surface of the crushing box, which drives the four sets of wiping blocks to move simultaneously along the length direction of the crushing blades. A connecting mechanism is provided on the top wall of the crushing box, which connects the translation mechanism to the four sets of wiping blocks. A drive mechanism is provided on the outer surface of the crushing box, and the drive mechanism is in transmission cooperation with the translation mechanism.
[0007] Preferably, the translation mechanism includes four through slots formed on the upper surface of the crushing box, and the four through slots are arranged at equal angles to the connecting shaft. A screw is rotatably installed inside each of the four through slots, a nut seat is installed on the outer surface of the screw, and a connecting rod B is installed on the lower surface of the nut seat.
[0008] Preferably, the connecting mechanism includes an arc-shaped slide rail installed at the end of the connecting rod B. An arc-shaped slider is slidably installed inside the arc-shaped slide rail. When the four arc-shaped slide rails are combined together, they can form a complete annular slide rail, and the arc-shaped slider can slide within the annular slide rail. A connecting rod is installed at the bottom of the arc-shaped slider, and the end of the connecting rod is connected to the uppermost wiping block.
[0009] Preferably, the drive mechanism includes a bevel gear ring rotatably mounted on the outer surface of the crushing chamber, the end of the screw extending to the outside of the crushing chamber and mounted with a bevel gear, the bevel gear meshing with the bevel gear ring, a drive motor mounted on the outer surface of the crushing chamber, and the output shaft of the drive motor connected to one of the bevel gears.
[0010] Preferably, a rotating wheel is installed on the outer surface of the connecting shaft, and a pin is installed on the outer surface of the rotating wheel. The upper surface of the crushing box is provided with a socket that matches the pin. When the pin is inserted into the socket, the length direction of the crushing blade is consistent with the length direction of the through groove.
[0011] Preferably, a whetstone is fitted on the outer surface of the shredding blade, and the whetstone is connected to the wiping block.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] (1) By setting the wiping block on the outer surface of the crushing blade, the present invention can achieve the purpose of wiping and cleaning the surface of the crushing blade by moving each group of wiping blocks along the length direction of the crushing blade through the translation mechanism. This eliminates the need for the tedious operation of installing parts every time the crushing blade is wiped, thus improving work efficiency. Even if the crushing blade is slightly deformed after a period of use, the wiping block can still slide on its surface due to its certain deformation ability, thus achieving the purpose of wiping and cleaning. Furthermore, it prevents the crushing blade from being hit, ensuring good safety.
[0014] (2) By setting up an arc-shaped slide rail and an arc-shaped slider, when there is a certain angular deviation between the moving direction of the wiping block and the length direction of the crushing blade, the arc-shaped slider will slide in the arc-shaped slide rail under force to make adaptive adjustment of the angle, thereby reducing the manufacturing precision requirements and reducing manufacturing costs.
[0015] (3) This utility model utilizes the wiping block to drive the whetstone to slide on the surface of the crushing blade at the same time. During the wiping and cleaning process, the crushing blade can also be polished, achieving two goals at once, ensuring the sharpness of the crushing blade and improving the crushing efficiency. Attached Figure Description
[0016] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the connecting shaft in this utility model;
[0018] Figure 3 This is a schematic diagram of the connecting mechanism in this utility model;
[0019] Figure 4 for Figure 1 Enlarged diagram of A in the middle;
[0020] Figure 5 for Figure 1 Enlarged diagram of B in the diagram. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0022] like Figures 1 to 5As shown, a crop straw processing device includes a crushing box 100, a support 101, a crushing motor 102, a connecting shaft 103, crushing blades 104, a wiping block 105, a connecting rod A106, a translation mechanism 200, a through groove 201, a screw 202, a nut seat 203, a connecting rod B204, a connecting mechanism 300, an arc-shaped slide rail 301, an arc-shaped slider 302, a connecting rod 303, a drive mechanism 400, a bevel gear ring 401, a bevel gear 402, a drive motor 403, a rotating wheel 500, a pin 501, and a socket 502.
[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0025] like Figures 1 to 5 As shown, a bracket 101 is installed on the top of the crushing box 100, and a crushing motor 102 is installed on the top of the bracket 101. The end of the output shaft of the crushing motor 102 is connected to a connecting shaft 103. The end of the connecting shaft 103 extends into the interior of the crushing box 100. The bracket 101 allows the upper part of the connecting shaft 103 to be exposed to the outside, making it easy to rotate it manually. Four sets of crushing blades 104 are mounted coaxially and at equal angles on the outer surface of the connecting shaft 103. Each set of crushing blades 104 includes multiple crushing blades 104 arranged equidistantly in the vertical direction. A wiping block 105 is sleeved on the outer surface of the crushing blade 104. The inner wall of the wiping block 105 is in contact with the outer surface of the crushing blade 104. The multiple wiping blocks 105 arranged in the vertical direction are connected by a connecting rod A106. The multiple wiping blocks 105 in the vertical direction are connected together by the connecting rod A106. When one of the wiping blocks 105 moves, it will drive the multiple wiping blocks 105 in the vertical direction to move simultaneously, wiping the crushing blade 104.
[0026] A translation mechanism 200 is provided on the upper surface of the pulverizing chamber 100. The translation mechanism 200 is used to drive four sets of wiping blocks 105 to move simultaneously along the length direction of the pulverizing blades 104. A connecting mechanism 300 is provided on the top wall of the pulverizing chamber 100. The connecting mechanism 300 is used to connect the translation mechanism 200 to the four sets of wiping blocks 105. A drive mechanism 400 is provided on the outer surface of the pulverizing chamber 100. The drive mechanism 400 is in transmission cooperation with the translation mechanism 200.
[0027] A rotating wheel 500 is mounted on the outer surface of the connecting shaft 103, and a pin 501 is mounted on the outer surface of the rotating wheel 500. The upper surface of the crushing box 100 has a socket 502 that matches the pin 501. When the pin 501 is inserted into the socket 502, the length direction of the crushing blade 104 is consistent with the length direction of the through groove 201. When wiping and cleaning the crushing blade 104, first turn off the crushing motor 102, then manually rotate the rotating wheel 500 to drive the connecting shaft 103 to rotate. After rotating the connecting shaft 103 to a suitable angle, insert the pin 501 into the socket 502 to fix the angle of the connecting shaft 103. At this time, the length direction of the crushing blade 104 is consistent with the length direction of the through groove 201. Through the transmission cooperation of the drive mechanism 400 and the translation mechanism 200, the wiping block 105 can be driven to wipe and clean the surface of the crushing blade 104.
[0028] A whetstone is fitted on the outer surface of the shredder blade 104. The whetstone is connected to the wiping block 105. The wiping block 105 drives the whetstone to slide on the surface of the shredder blade 104 at the same time. During the wiping and cleaning process, the shredder blade 104 can also be sharpened. This achieves two goals at once, ensuring the sharpness of the shredder blade 104 and improving the shredding efficiency.
[0029] The translation mechanism 200 includes four through slots 201 formed on the upper surface of the crushing box 100. The four through slots 201 are arranged coaxially and at equal angles around the connecting shaft 103. A screw 202 is rotatably installed inside each of the four through slots 201. A nut seat 203 is installed on the outer surface of the screw 202. A connecting rod B204 is installed on the lower surface of the nut seat 203. When the screw 202 rotates, it can drive the nut seat 203 to move along its length direction. Therefore, through the connection between the connecting rod B204 and the connecting mechanism 300, a set of wiping blocks 105 in the vertical direction can be driven to move along the length direction of the crushing blade 104 to achieve the purpose of wiping and cleaning.
[0030] The drive mechanism 400 includes a bevel gear ring 401 rotatably mounted on the outer surface of the crushing chamber 100. The end of the screw 202 extends through to the outside of the crushing chamber 100 and is equipped with a bevel gear 402. The bevel gear 402 meshes with the bevel gear ring 401. A drive motor 403 is mounted on the outer surface of the crushing chamber 100. The output shaft of the drive motor 403 is connected to one of the bevel gears 402. When the drive motor 403 is started, its output shaft drives the bevel gear 402 connected to it to rotate. The bevel gear 402 drives the bevel gear ring 401 to rotate, and the bevel gear ring 401 drives the other three bevel gears 402 to rotate simultaneously, thereby achieving the purpose of rotating all four screws 202 at the same time.
[0031] The connecting mechanism 300 includes an arc-shaped slide rail 301 installed at the end of the connecting rod B204. An arc-shaped slider 302 is slidably installed inside the arc-shaped slide rail 301. When the four arc-shaped slide rails 301 are combined together, they can form a complete annular slide rail, and the arc-shaped slider 302 can slide inside the annular slide rail. A connecting rod 303 is installed at the bottom of the arc-shaped slider 302. The end of the connecting rod 303 is connected to the uppermost wiping block 105. When the four arc-shaped slide rails 301 are combined to form an annular slide rail, the connecting rod 303 can slide inside the annular slide rail, so that the connecting shaft 103 can drive the crushing blade 104 to rotate and crush the straw. When the connecting rod B204 drives the arc-shaped slide rail 301 to move horizontally, the arc-shaped slide rail 301 will drive the connecting rod 303 to move simultaneously, thereby achieving the purpose of driving the wiping block 105 to move along the length direction of the crushing blade 104. In addition, the annular slide rail and the connecting rod 303 also play a limiting role for the wiping block 105, preventing the wiping block 105 from being thrown off the crushing blade 104 due to centrifugal force when the connecting shaft 103 rotates, achieving two goals at once.
[0032] The working principle of this utility model is as follows:
[0033] In use, the crushing motor 102 is started to drive the connecting shaft 103 to rotate, which in turn drives the crushing blades 104 to rotate. After the straw is poured into the crushing box 100, the crushing purpose can be achieved. When it is necessary to wipe and clean the crushing blades 104, the crushing motor 102 is paused first. Then, the rotating wheel 500 is manually rotated to drive the connecting shaft 103 to rotate to a suitable angle. Next, the pin 501 is inserted into the insertion hole 502, which fixes the connecting shaft 103 at the current angle and aligns the length direction of the crushing blades 104 with the length direction of the through groove 201. Then, the drive motor 403 is started. Through the meshing relationship between the bevel gear 402 and the bevel gear ring 401, the four screws 202 rotate simultaneously. 2. The nut seat 203 moves along its length, and the arc-shaped slide rail 301 moves through the connecting rod B204. The arc-shaped slide rail 301 moves the arc-shaped slider 302 inside it. The arc-shaped slider 302 moves the uppermost wiping block 105 through the connecting rod 303. Since the multiple wiping blocks 105 in the vertical direction are connected to each other through the connecting rod A106, the purpose of wiping and cleaning multiple crushing blades 104 in the length direction can be achieved at the same time. In addition, the wiping block 105 drives the whetstone to slide on the surface of the crushing blades 104 at the same time. During the wiping and cleaning process, the crushing blades 104 can also be sharpened. This achieves two goals at once, ensuring the sharpness of the crushing blades 104 and improving the crushing efficiency.
[0034] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of this utility model. Therefore, any modifications, equivalent changes, or improvements made in accordance with the claims of this utility model shall still fall within the scope of this utility model.
Claims
1. A crop straw processing device, comprising a crushing box (100) and crushing blades (104), characterized in that: A bracket (101) is installed on the top of the crushing box (100), and a crushing motor (102) is installed on the top of the bracket (101). A connecting shaft (103) is connected to the end of the output shaft of the crushing motor (102), and the end of the connecting shaft (103) extends into the interior of the crushing box (100). Four sets of crushing blades (104) are installed coaxially and at equal angles on the outer surface of the connecting shaft (103). Each set of crushing blades (104) includes multiple crushing blades (104) arranged equidistantly in the vertical direction. A wiping block (105) is sleeved on the outer surface of the crushing blades (104), and the inner wall of the wiping block (105) is in contact with the outer surface of the crushing blades (104). The multiple wiping blocks (105) arranged vertically are connected by connecting rods A (106); the upper surface of the pulverizing box (100) is provided with a translation mechanism (200), which is used to drive the four sets of wiping blocks (105) to move simultaneously along the length direction of the pulverizing blade (104); the top wall of the pulverizing box (100) is provided with a connecting mechanism (300), which is used to connect the translation mechanism (200) with the four sets of wiping blocks (105); the outer surface of the pulverizing box (100) is provided with a driving mechanism (400), which is in transmission cooperation with the translation mechanism (200).
2. The crop straw processing device according to claim 1, characterized in that: The translation mechanism (200) includes four through slots (201) formed on the upper surface of the crushing box (100), and the four through slots (201) are arranged coaxially and at equal angles around the connecting shaft (103). A screw (202) is rotatably installed inside each of the four through slots (201), and a nut seat (203) is installed on the outer surface of the screw (202). A connecting rod B (204) is installed on the lower surface of the nut seat (203).
3. The crop straw processing device according to claim 2, characterized in that: The connecting mechanism (300) includes an arc-shaped slide rail (301) installed at the end of the connecting rod B (204). An arc-shaped slider (302) is slidably installed inside the arc-shaped slide rail (301). When the four arc-shaped slide rails (301) are combined together, they can form a complete annular slide rail, and the arc-shaped slider (302) can slide inside the annular slide rail. A connecting rod (303) is installed at the bottom of the arc-shaped slider (302), and the end of the connecting rod (303) is connected to the uppermost wiping block (105).
4. The crop straw processing device according to claim 2, characterized in that: The drive mechanism (400) includes a bevel gear ring (401) rotatably mounted on the outer surface of the crushing box (100). The end of the screw (202) extends through to the outside of the crushing box (100) and is equipped with a bevel gear (402). The bevel gear (402) meshes with the bevel gear ring (401). A drive motor (403) is mounted on the outer surface of the crushing box (100). The output shaft of the drive motor (403) is connected to one of the bevel gears (402).
5. The crop straw processing device according to claim 3, characterized in that: A rotating wheel (500) is mounted on the outer surface of the connecting shaft (103), and a pin (501) is mounted on the outer surface of the rotating wheel (500). The upper surface of the crushing box (100) is provided with a socket (502) that matches the pin (501). When the pin (501) is inserted into the socket (502), the length direction of the crushing blade (104) is consistent with the length direction of the through groove (201).
6. The crop straw processing device according to claim 1, characterized in that: The outer surface of the shredder blade (104) is fitted with a whetstone, which is connected to the wiping block (105).
Citation Information
Patent Citations
Agricultural crop straw treatment device
CN221510345U