A raw material crushing device for agricultural production

Abstract

This utility model relates to the field of agricultural product production technology, and in particular to a raw material crushing device for agricultural product production. It includes a structural support frame, a cutting paddle, and a crushing and extrusion assembly. An upper crushing box is installed inside the structural support frame. An inlet is opened on the side end face of the upper crushing box, and a feeding slide is installed inside the inlet. A feeding channel is connected to the lower end of the upper crushing box, and a lower crushing box is connected to the lower end of the feeding channel. The crushing and extrusion assembly is installed inside the lower crushing box, and an outlet is opened on the side end face of the lower crushing box. An outlet slide is installed inside the outlet. A drive shaft is rotatably connected inside the upper crushing box. This utility model achieves primary crushing through the cutting paddle and grinding blocks, followed by secondary crushing and extrusion grinding through a fixed grinding roller shaft and a driven grinding roller shaft, achieving multi-stage crushing and improving crushing accuracy to address situations with large particle size ranges.

Description

Technical Field

[0001] This utility model relates to the field of agricultural product production technology, and in particular to a raw material crushing device for agricultural product production. Background Technology

[0002] Agricultural production refers to the process of producing plants and animals and their by-products that can be consumed, processed or utilized by humans through artificial intervention or natural growth. However, from primary crops in the field to end consumer products, multiple processing steps are often required. Among these, raw material crushing is a key pre-processing step for many agricultural products, and therefore raw material crushing equipment is used.

[0003] Existing crushing devices mostly use a closed tank with internal rotating cutting blades for crushing. Although this can meet basic crushing requirements, it has some drawbacks in actual use. The single crushing method is not fine enough to crush materials and cannot achieve graded processing from coarse to fine crushing. As a result, the crushed raw materials may have large particles remaining due to uneven force applied at one time, resulting in a large particle size range.

[0004] Therefore, the existing crushing devices, with their single crushing method, do not achieve a fine enough crushing effect on materials and cannot realize graded processing from coarse to fine crushing. This results in large particles remaining after crushing due to uneven force applied at one time, leading to a large particle size range. This utility model can achieve primary crushing through a cutting paddle and grinding blocks, followed by secondary extrusion grinding through a fixed grinding roller shaft and a driven grinding roller shaft, thus achieving multi-stage crushing. It is applicable to a variety of agricultural raw materials and can improve the crushing precision to solve the problem of large particle size range. Utility Model Content

[0005] In order to overcome the problem that the existing crushing equipment's single crushing method is not fine enough to achieve graded processing from coarse to fine crushing, resulting in large particles remaining after crushing due to uneven force applied at one time, and producing a large particle size range.

[0006] The technical solution of this utility model is as follows: a raw material crushing device for agricultural production, comprising a structural support frame, a cutting blade, and a crushing and extrusion assembly. An upper crushing box is installed on the inner side of the structural support frame. A feed inlet is opened on the side end face of the upper crushing box. A feed slide is installed inside the feed inlet. A feeding channel is connected to the lower end of the upper crushing box. A lower crushing box is connected to the lower end of the feeding channel. A crushing and extrusion assembly is installed inside the lower crushing box. A discharge port is opened on the side end face of the lower crushing box. A discharge slide is installed inside the discharge port. A drive shaft is rotatably connected inside the upper crushing box. A cutting blade is fixedly connected to the side end of the drive shaft. A movable cutting blade is hinged to the outer side of the cutting blade.

[0007] Preferably, the inner wall of the upper crushing box is fixedly connected to a grinding block, the outer end of the upper crushing box is equipped with a drive motor, the output shaft of the drive motor passes through the upper crushing box and is fixedly connected to the transmission shaft, and the bottom end of the upper crushing box is provided with an air blowing plate.

[0008] Preferably, an air compressor is installed on the outside of the upper crushing box, and the output end pipe of the air compressor is connected to a first fastening cover plate. The first fastening cover plate is snapped onto the outside of the air blowing plate. A screen hole groove is opened on the top of the upper crushing box, and a second fastening cover plate is snapped onto the outside of the screen hole groove.

[0009] Preferably, a debris collection box is installed at the upper end of the structural support frame, and a negative pressure suction pump is installed inside the debris collection box. The pipe at the upper end of the debris collection box is connected to the second fastening cover plate.

[0010] Preferably, the crushing assembly includes a fixed grinding roller shaft, a first transmission wheel, a second transmission wheel, a transmission belt, a movable push rod, an electric telescopic rod, a pressure spring, a movable inner support rod, and a driven grinding roller shaft. The fixed grinding roller shaft is rotatably connected inside the lower crushing box. The central shaft of the fixed grinding roller shaft passes through the upper crushing box and is fixedly connected to the second transmission wheel. The transmission shaft passes through the upper crushing box and is fixedly connected to the first transmission wheel. The first and second transmission wheels are externally connected to the transmission belt.

[0011] Preferably, a movable push rod is slidably connected inside the side end of the lower crushing box, and an electric telescopic rod is installed on the outer side end of the lower crushing box, with the output end of the electric telescopic rod connected to the inner end of the movable push rod.

[0012] Preferably, the movable push rod is provided with a pressure spring inside, and a movable inner support rod is connected to the side end of the pressure spring. The movable inner support rod is slidably connected to the inside of the movable push rod, and a driven grinding roller shaft is rotatably connected to the inner side of the movable inner support rod.

[0013] The beneficial effects of this utility model are:

[0014] 1. The hinged connection between the cutting paddle and the movable cutting blade allows the movable cutting blade to self-adaptively expand during high-speed rotation. Working in conjunction with the cutting paddle, it performs initial cutting of the raw materials entering the upper crushing chamber. The interlacing friction between the grinding blocks and the movable cutting blade creates a dual crushing effect of cutting and grinding, rapidly breaking large pieces of roots, stems, and straw into smaller pieces. This reduces wear on the single cutting structure and extends the equipment's lifespan. Inside the lower crushing chamber, the driven and fixed grinding rollers further crush the initially crushed material through compression and grinding, resulting in secondary crushing. This multi-stage crushing process thoroughly breaks down agricultural raw materials, producing uniformly sized particles that meet the stringent particle size requirements of various production processes.

[0015] 2. High-pressure gas is delivered from the air-blowing plate into the upper crushing chamber by an air compressor to blow up the dust and light impurities generated during the crushing process in the upper crushing chamber. Then, the impurities floating to the top screen slot are sucked into the impurity collection box by a negative pressure suction pump. This can remove impurities in real time during the crushing process, prevent dust from overflowing and impurities from mixing into the raw materials, and ensure the purity of the finished product.

[0016] 3. The distance between the driven grinding roller shaft and the fixed grinding roller shaft is precisely adjusted by the electric telescopic rod, while the pressure spring provides flexible buffering to adapt to different material hardness. When faced with a sudden hard object, the pressure spring can compress and unload instantly to avoid damage to the equipment due to excessive hardness. Attached Figure Description

[0017] Figure 1 The diagram shown is a three-dimensional structural schematic of the present invention.

[0018] Figure 2 The diagram shown is a three-dimensional structural schematic of the cutting paddle of this utility model.

[0019] Figure 3 The diagram shown is a three-dimensional structural schematic of the debris collection box of this utility model;

[0020] Figure 4 The diagram shown is a three-dimensional structural schematic of the fixed grinding roller shaft of this utility model;

[0021] Figure 5 The diagram shown is a three-dimensional structural diagram of the movable inner support rod of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Structural support frame; 2. Upper crushing box; 3. Feed inlet; 4. Feed slide plate; 5. Feeding channel; 6. Lower crushing box; 7. Discharge port; 8. Discharge slide plate; 201. Drive shaft; 202. Cutting paddle; 203. Movable cutting blade; 204. Grinding block; 205. Drive motor; 206. Air blowing plate; 207. Air compressor; 208. First fastening cover plate; 209. Second fastening cover plate; 210. Debris collection box; 211. Negative pressure suction pump; 601. Fixed grinding roller shaft; 602. First transmission wheel; 6021. Second transmission wheel; 603. Transmission belt; 604. Movable push rod; 605. Electric telescopic rod; 606. Pressure spring; 607. Movable inner support rod; 608. Driven grinding roller shaft. 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 Figures 1-5 This utility model provides an embodiment of a raw material crushing device for agricultural production, comprising a structural support frame 1, a cutting blade 202, and a crushing and extrusion assembly. An upper crushing box 2 is installed on the inner side of the structural support frame 1. A feed inlet 3 is opened on the side end face of the upper crushing box 2. A feed slide 4 is installed inside the feed inlet 3. A feeding channel 5 is connected to the lower end of the upper crushing box 2. A lower crushing box 6 is connected to the lower end of the feeding channel 5. A crushing and extrusion assembly is installed inside the lower crushing box 6. A discharge port 7 is opened on the side end face of the lower crushing box 6. A discharge slide 8 is installed inside the discharge port 7. A drive shaft 201 is rotatably connected inside the upper crushing box 2. A cutting blade 202 is fixedly connected to the side end of the drive shaft 201. A movable cutting blade 203 is hinged to the outer side of the cutting blade 202.

[0025] The inner wall of the upper crushing box 2 is fixed with a grinding block 204. The outer end of the upper crushing box 2 is equipped with a drive motor 205. The output shaft of the drive motor 205 passes through the upper crushing box 2 and is fixed to the transmission shaft 201. The bottom end of the upper crushing box 2 is provided with an air blowing plate 206. The air blowing plate 206 can blow air into the upper crushing box 2 to blow lighter impurities to the top screen slot.

[0026] An air compressor 207 is installed on the outside of the upper crushing box 2. The output pipe of the air compressor 207 is connected to a first fastening cover plate 208. The first fastening cover plate 208 is snapped to the outside of the air blowing plate 206. A screen hole groove is opened on the top of the upper crushing box 2. A second fastening cover plate 209 is snapped to the outside of the screen hole groove. The second fastening cover plate 209, together with the negative pressure suction pump 211, can suck up the debris below the screen hole groove.

[0027] The upper end of the structural support frame 1 is equipped with a debris collection box 210. The debris collection box 210 is equipped with a negative pressure suction pump 211. The upper end of the debris collection box 210 is connected to the second fastening cover plate 209. The debris collection box 210 can collect the sucked debris for subsequent cleaning.

[0028] The crushing assembly includes a fixed grinding roller shaft 601, a first transmission wheel 602, a second transmission wheel 6021, a transmission belt 603, a movable push rod 604, an electric telescopic rod 605, a pressure spring 606, a movable inner support rod 607, and a driven grinding roller shaft 608. The fixed grinding roller shaft 601 is rotatably connected inside the lower crushing box 6. The central shaft of the fixed grinding roller shaft 601 passes through the upper crushing box 2 and is fixedly connected to the second transmission wheel 6021. The transmission shaft rod 201 passes through the upper crushing box 2 and is fixedly connected to the first transmission wheel 602. The first transmission wheel 602 and the second transmission wheel 6021 are externally connected by a transmission belt 603. The transmission belt 603, in conjunction with the first transmission wheel 602 and the second transmission wheel 6021, can transmit the rotational power of the drive motor 205 to the fixed grinding roller shaft 601, causing it to rotate.

[0029] A movable push rod 604 is slidably connected inside the side end of the lower crushing box 6. An electric telescopic rod 605 is installed on the outer side end of the lower crushing box 6. The output end of the electric telescopic rod 605 is connected to the inner end of the movable push rod 604. The electric telescopic rod 605 pushes the movable push rod 604, causing the driven grinding roller shaft 608 to move closer to the fixed grinding roller shaft 601, adjusting the distance between the two roller shafts to adapt to different raw material hardness.

[0030] The movable push rod 604 is equipped with a pressure spring 606 inside. The side end of the pressure spring 606 is connected to a movable inner support rod 607. The movable inner support rod 607 is slidably connected to the inside of the movable push rod 604. The inner side of the movable inner support rod 607 is rotatably connected to the driven grinding roller shaft 608. The pressure spring 606 and the movable inner support rod 607 in the movable push rod 604 form an elastic support structure. When encountering a hard foreign object, it is automatically compressed, pushing the movable inner support rod 607 to cause the driven grinding roller shaft 608 to retract and unload.

[0031] Working principle: According to Figures 1-3 First, the raw material enters the upper crushing box 2 through the feed slide plate 4 of the feed inlet 3. The drive motor 205 drives the transmission shaft 201 to rotate, causing the cutting blade 202 to rotate. The movable cutting blade 203, which is hinged to the outside of the blade, unfolds due to centrifugal force, and performs initial cutting and crushing on the raw material. The grinding block 204 on the inner wall of the upper crushing box 2 cooperates with the movable cutting blade 203 to further grind the raw material into smaller particles. Then, the air compressor 207 blows air into the upper crushing box 2 through the air blowing plate 206, blowing the lighter impurities to the top screen slot, and sucking them into the impurity collection box 210 by the negative pressure suction pump 211 to achieve impurity separation.

[0032] according to Figures 4-5Next, the initially crushed raw material falls into the lower crushing box 6 through the feeding channel 5. At this time, the transmission shaft 201 drives the fixed grinding roller shaft 601 to rotate through the first transmission wheel 602 and the transmission belt 603. The electric telescopic rod 605 pushes the movable push rod 604, causing the driven grinding roller shaft 608 to move closer to the fixed grinding roller shaft 601. The distance between the two roller shafts is adjusted to adapt to different raw material hardness. The pressure spring 606 and the movable inner support rod 607 in the movable push rod 604 form an elastic support structure. When encountering a hard foreign object, it is automatically compressed, pushing the movable inner support rod 607 to make the driven grinding roller shaft 608 retract and unload. Finally, the finished product is discharged through the discharge slide plate 8 in the discharge port 7.

[0033] It should be noted that the aforementioned drive motor 205, air compressor 207, negative pressure suction pump 211, and electric telescopic rod 605 can be powered by existing operating techniques. Whether powered by a power supply unit or by an external wire, both are conventional operating techniques and will not be described in detail here.

[0034] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0035] 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 raw material crushing device for agricultural product production, comprising a structural support frame (1); characterized in that: It also includes a cutting blade (202) and a crushing assembly. An upper crushing box (2) is installed on the inner side of the structural support (1). A feed inlet (3) is opened on the side end face of the upper crushing box (2). A feed slide (4) is installed inside the feed inlet (3). A feeding channel (5) is connected to the lower end of the upper crushing box (2). A lower crushing box (6) is connected to the lower end of the feeding channel (5). A crushing assembly is installed inside the lower crushing box (6). A discharge port (7) is opened on the side end face of the lower crushing box (6). A discharge slide (8) is installed inside the discharge port (7). A drive shaft (201) is rotatably connected inside the upper crushing box (2). A cutting blade (202) is fixed to the side end of the drive shaft (201). A movable cutting blade (203) is hinged to the outer side of the cutting blade (202).

2. The raw material crushing device for agricultural production according to claim 1, characterized in that: The inner wall of the upper crushing box (2) is fixed with a grinding block (204), and a drive motor (205) is installed at the outer end of the upper crushing box (2). The output shaft of the drive motor (205) passes through the upper crushing box (2) and is fixed to the transmission shaft (201). An air blowing plate (206) is provided at the bottom of the upper crushing box (2).

3. The raw material crushing device for agricultural production according to claim 2, characterized in that: An air compressor (207) is installed on the outside of the upper crushing box (2). The output pipe of the air compressor (207) is connected to a first fastening cover plate (208). The first fastening cover plate (208) is snapped to the outside of the air blowing plate (206). A screen hole groove is opened on the top of the upper crushing box (2). A second fastening cover plate (209) is snapped to the outside of the screen hole groove.

4. The raw material crushing device for agricultural production according to claim 3, characterized in that: The upper end of the structural support frame (1) is equipped with a debris collection box (210), and the debris collection box (210) is equipped with a negative pressure suction pump (211). The pipe at the upper end of the debris collection box (210) is connected to the second fastening cover plate (209).

5. A raw material crushing device for agricultural production according to claim 1, characterized in that: The crushing assembly includes a fixed grinding roller shaft (601), a first transmission wheel (602), a second transmission wheel (6021), a transmission belt (603), a movable push rod (604), an electric telescopic rod (605), a pressure spring (606), a movable inner support rod (607), and a driven grinding roller shaft (608). The fixed grinding roller shaft (601) is rotatably connected inside the lower crushing box (6). The central shaft of the fixed grinding roller shaft (601) passes through the upper crushing box (2) and is fixedly connected to the second transmission wheel (6021). The transmission shaft rod (201) passes through the upper crushing box (2) and is fixedly connected to the first transmission wheel (602). The first transmission wheel (602) and the second transmission wheel (6021) are externally connected to the transmission belt (603).

6. A raw material crushing device for agricultural production according to claim 5, characterized in that: A movable push rod (604) is slidably connected inside the side end of the lower crushing box (6), and an electric telescopic rod (605) is installed on the outer side end of the lower crushing box (6). The output end of the electric telescopic rod (605) is connected to the inner end of the movable push rod (604).

7. A raw material crushing device for agricultural production according to claim 5, characterized in that: The movable push rod (604) is provided with a pressure spring (606) inside. The side end of the pressure spring (606) is connected to a movable inner support rod (607). The movable inner support rod (607) is slidably connected to the inside of the movable push rod (604). The inner side of the movable inner support rod (607) is rotatably connected to a driven grinding roller shaft (608).

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