Experimental platform for removing old leaves of Chinese cabbage

Abstract

The invention discloses an experimental platform for removing old leaves of Chinese cabbages. The experimental platform comprises a rack; the two driving transmission assemblies are correspondingly mounted behind the upper part of the rack; the two spiral rolling brush conveying assemblies are correspondingly installed in front of the upper portion of the rack, and the two spiral rolling brush conveying assemblies are in transmission connection with the two driving conveying assemblies correspondingly; the belt conveying assembly is installed in the middle of the upper portion of the rack and located between the two spiral rolling brush conveying assemblies. The hydraulic control speed regulating valve block is mounted on the right side of the upper part of the rack, is connected with the two spiral rolling brush transmission assemblies and the belt transmission assembly, and is used for controlling the working states of the two driving transmission assemblies and the belt transmission assembly; the spiral rolling brush conveying assembly is used for rotating Chinese cabbages to throw away old leaves, the belt conveying assembly is used for conveying the Chinese cabbages, the hydraulic control speed regulating valve block is used for adjusting the working rotating speed of all components, the rotating speed sensor monitors rotating speed parameters in real time, the old leaves of the Chinese cabbages can be efficiently removed, stable conveying is achieved, and technical data support is provided for optimizing the Chinese cabbage harvester. And the popularization value is high.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, specifically to an experimental platform for removing old leaves from cabbage. Background Technology

[0002] As agricultural modernization progresses, the demand for mechanization and automation in the harvesting and processing of Chinese cabbage, a leafy vegetable with extremely high consumption in my country, is becoming increasingly urgent. For a long time, the harvesting and subsequent removal of old leaves from Chinese cabbage have relied heavily on manual labor: after manually cutting and transporting the plants, the old leaves at the base must be peeled off one by one to achieve the clean vegetable standard. This not only results in high labor costs and low efficiency, making it difficult to meet the needs of large-scale planting, but also leads to inconsistent quality in manual operations, easily causing leaf damage or old leaf residue due to individual differences, affecting the quality of subsequent processing.

[0003] With the development of agricultural machinery technology, although rudimentary cabbage harvesting machines have appeared on the market, their functions are clearly limited and have not yet reached commercial maturity. These machines can only perform basic cutting and conveying, and cannot simultaneously remove old leaves. After harvesting, secondary manual processing is still required, failing to achieve integrated "harvesting-cleaning"; at the same time, the core parameters of the equipment (such as the root cutting position and conveying speed) lack precise control, resulting in a high damage rate of cabbage during harvesting and increasing subsequent processing losses.

[0004] From an industry perspective, cabbage processing enterprises have a strong demand for standardized supply of cleaned cabbage. The disconnect between existing harvesting machinery and defoliation processes has become a key bottleneck restricting cost reduction and efficiency improvement in the industry. More importantly, the current research and development of cabbage old leaf removal devices lacks systematic experimental support—different varieties of cabbage have different leaf morphologies and stem hardness, and the compatibility between old leaf removal effectiveness and equipment parameters (such as roller speed and conveying speed) is unclear, making it difficult for related devices to achieve both versatility and high efficiency.

[0005] Therefore, developing an experimental platform for removing old leaves from cabbage that can simulate real-world scenarios, precisely control parameters, and collect data has become crucial to overcoming technological bottlenecks. This platform needs to not only fill the gap in cabbage harvesters' lack of leaf removal functionality but also optimize key parameters through experiments, providing scientific data for the structural design and performance debugging of commercial leaf removal devices. This will promote the development of integrated cabbage harvesting and leaf removal machinery and help the vegetable harvesting industry upgrade towards automation and standardization. Summary of the Invention

[0006] The purpose of this invention is to provide an experimental platform for removing old leaves from Chinese cabbage, in order to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following solution: An experimental platform for removing old leaves from cabbage includes: frame; Two drive transmission components are installed at the rear of the upper part of the rack; Two spiral roller brush transmission assemblies are respectively installed at the front of the upper part of the frame, and the two spiral roller brush transmission assemblies are respectively connected to the two drive transmission assemblies. A transmission assembly is installed in the middle of the upper part of the frame, located between the two spiral roller brush transmission assemblies; A hydraulic control speed regulating valve block is installed on the upper right side of the frame and connects the two spiral roller brush transmission components and the belt transmission component. It is used to control the working status of the two drive transmission components and the belt transmission component. Furthermore, the drive transmission assembly includes a first hydraulic motor, a first mounting bracket, a first bushing, a first sprocket, and a chain; The first hydraulic motor is mounted on the first mounting bracket; The first mounting bracket is mounted on the frame; The first bushing and the first sprocket are sequentially sleeved on the output shaft of the first hydraulic motor; One end of the chain is fitted onto the first sprocket, and the other end is fitted onto the spiral roller brush transmission assembly.

[0008] Furthermore, the spiral brush transmission assembly includes a second sprocket, a first spherical bearing, a second bushing, a spiral brush roller, and a second mounting bracket; The spiral brush roller is fitted with the outer spherical bearing, and the first outer spherical bearing is fixed on the second mounting bracket; The second mounting bracket is mounted on the frame; The second sprocket, the first spherical bearing, and the second bushing are sequentially mounted on the shaft of the spiral brush roller; The other end of the chain is fitted onto the second sprocket.

[0009] Furthermore, the belt conveyor assembly includes a third mounting bracket, a drive wheel, a second hydraulic motor, a third bushing, a conveyor belt, a fourth mounting bracket, a driven wheel, a fourth bushing, a driven shaft, and a second spherical bearing; The second hydraulic motor is mounted on the third mounting bracket; The third mounting bracket is mounted on the frame; The drive wheel and the third bushing are sequentially mounted on the output shaft of the second hydraulic motor; The driven wheel, the fourth bushing, and the second spherical bearing are sequentially sleeved on the driven shaft; The second spherical bearing is mounted on the fourth mounting bracket; The fourth mounting bracket is mounted on the frame; The third mounting bracket and the fourth mounting bracket are positioned correspondingly; The conveyor belt is sleeved between the drive wheel and the driven wheel, and the conveying direction of the conveyor belt is parallel to the axis of the spiral brush roller.

[0010] Furthermore, it also includes two speed sensors respectively mounted on the drive transmission assembly and the belt transmission assembly, with the two speed sensors located close to the first hydraulic motor and the second hydraulic motor, for detecting the speed of the first hydraulic motor and the second hydraulic motor.

[0011] Furthermore, the two spiral brush rollers are arranged side by side and cooperate with the belt conveyor assembly, so that the cabbage is rotated and brushed by the spiral brush rollers while being conveyed forward by the conveyor belt in the belt conveyor assembly.

[0012] Furthermore, one of the speed sensors is mounted on the first mounting bracket; Another speed sensor is mounted on the third mounting bracket.

[0013] Furthermore, the two speed sensors can be used to indirectly measure the rotational speed of the spiral brush roller and the moving speed of the conveyor belt.

[0014] As can be seen from the above technical solution, compared with the prior art, the beneficial effects of the present invention are as follows: The spiral brush conveyor assembly enables the cabbage to shed its attached old leaves during rotation due to centrifugal force, significantly improving the efficiency of cabbage processing. The rotation speed of the spiral brush roller can be precisely adjusted via a hydraulically controlled speed regulating valve, thus adapting to different types and sizes of cabbage.

[0015] The conveyor belt assembly enables the cabbage to be transported smoothly and continuously after the old leaves are removed, avoiding secondary damage. The linear speed of the conveyor belt can also be adjusted via a hydraulically controlled speed regulating valve, thereby ensuring the stability and reliability of the conveying process.

[0016] By using a hydraulically controlled speed control valve block and a speed sensor in conjunction, precise adjustment of the operating parameters of each transmission component was achieved, providing reliable experimental data and technical reference for the optimized design of the old leaf removal device in a cabbage harvester. The real-time monitoring function of the speed sensor ensured the accuracy of various parameters during the experiment, laying the foundation for subsequent parameter optimization.

[0017] Adopting a modular design, each functional component can be installed independently, which facilitates assembly, maintenance and upgrades, adapting to the needs of different application scenarios. This not only improves the flexibility of the experimental platform, but also reduces maintenance costs, and has high practical value and promising prospects for promotion. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a front view of the experimental platform for removing old cabbage leaves in an embodiment of the present invention; Figure 2 This is a top view of the experimental platform for removing old cabbage leaves in an embodiment of the present invention; Figure 3 for Figure 2 View from the center (K ​​direction); Figure 4 This is a side view of the experimental platform for removing old cabbage leaves in an embodiment of the present invention; Figure 5 This is a schematic diagram illustrating the cooperation between the drive transmission component and the spiral roller brush transmission component in an embodiment of the present invention; Figure 6 for Figure 5 A magnified view of part A in the image; Figure 7 , 8 This is a schematic diagram of the structural assembly of the transmission component in an embodiment of the present invention; Figure 9 for Figure 8 A magnified view of part B in the image; Figure 10 for Figure 8 A magnified view of part C.

[0020] Explanation of reference numerals in the attached figures: 1. Frame; 2. Drive transmission assembly; 2-1. First hydraulic motor; 2-2. First nut; 2-3. First mounting bracket; 2-4. First bolt; 2-5. First bushing; 2-6. First sprocket; 2-7. First key; 2-8. First sprocket pressure plate; 2-9. First fastener; 2-10. Chain; 3. Spiral brush transmission assembly; 3-1. Second fastener; 3-2. Second sprocket; 3-3. First spherical bearing; 3-4. Second key; 3-5. Second bushing; 3-6. Spiral brush roller; 3-7. Third nut; 3-8. Third bolt; 3-9. Second mounting bracket 4. Conveyor assembly; 4-1. Third mounting bracket; 4-2. Drive wheel; 4-3. Second hydraulic motor; 4-4. Third fastener; 4-5. Pulley pressure plate; 4-6. Third flat key; 4-7. Third bushing; 4-8. Fifth bolt; 4-9. Fifth nut; 4-10. Conveyor belt; 4-11. Fourth mounting bracket; 4-12. Driven wheel; 4-13. Fourth bushing; 4-14. Driven shaft; 4-15. Fourth flat key; 4-16. Sixth nut; 4-17. Second spherical bearing; 4-18. Sixth bolt; 5. Hydraulic control speed regulating valve block; 6. Speed ​​sensor. Detailed Implementation

[0021] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0022] Example 1 Combination Figures 1 to 10 Description of this embodiment: An experimental platform for removing old leaves from cabbage includes a frame 1, two drive transmission components 2, two spiral roller brush transmission components 3, a belt transmission component 4, a hydraulic control speed regulating valve block 5, and two speed sensors 6.

[0023] It should be noted that the speed sensor 6 is a non-contact speed sensor.

[0024] Frame 1 serves as the supporting frame for the entire experimental platform, used to fix and install all functional components, ensuring the stability of the overall platform structure.

[0025] Two drive transmission components 2 are respectively installed at the rear of the upper part of the frame 1, two spiral roller brush transmission components 3 are installed at the front of the upper part of the frame 1, and belt transmission component 4 is installed in the middle of the upper part of the frame 1, located between the two spiral roller brush transmission components 3. The hydraulic control speed regulating valve block 5 is installed on the right side of the upper part of the frame 1. Two speed sensors 6 are respectively installed on the drive transmission component 2 and the belt transmission component 4, and are close to their respective hydraulic motors.

[0026] The drive transmission assembly 2 includes a first hydraulic motor 2-1, a first nut 2-2, a first mounting bracket 2-3, a first bolt 2-4, a first bushing 2-5, a first sprocket 2-6, a first key 2-7, a first sprocket pressure plate 2-8, a first fastener 2-9, and a chain 2-10. The first hydraulic motor 2-1 is bolted to the first mounting bracket 2-3, which is bolted to the frame 1. The first bushing 2-5 and the first sprocket 2-6 are fixedly mounted on the output shaft of the first hydraulic motor 2-1. The first sprocket 2-6 is fixedly mounted on the output shaft of the first hydraulic motor 2-1 via the first key 2-7, the first sprocket pressure plate 2-8, and the first fastener 2-9. The drive transmission assembly 2 transmits the torque and motion of the first hydraulic motor 2-1 to the second sprocket 3-2 of the spiral brush transmission assembly 3 via the chain 2-10, thereby driving the spiral brush roller 3-6 to rotate.

[0027] The spiral brush transmission assembly 3 includes a second fastener 3-1, a second sprocket 3-2, a first spherical bearing 3-3, a second flat key 3-4, a second bushing 3-5, a spiral brush roller 3-6, a third nut 3-7, a third bolt 3-8, and a second mounting bracket 3-9. The shaft of the spiral brush roller 3-6 is mounted on the first spherical bearing 3-3, which is fixedly mounted on the second mounting bracket 3-9 by the third nut 3-7 and the third bolt 3-8. The second mounting bracket 3-9 is bolted to the frame 1. The second sprocket 3-2, the first spherical bearing 3-3, and the second bushing 3-5 are fitted onto the shaft of the spiral brush roller 3-6. The second sprocket 3-2 is fixedly mounted on the shaft of the spiral brush roller 3-6 by the second flat key 3-4 and the second fastener 3-1. The spiral brush roller 3-6 is mounted on the second mounting bracket 3-9 via the first outer spherical bearing 3-3. The second sprocket 3-2 is fixed on the shaft of the spiral brush roller 3-6 via the second flat key 3-4 and the second fastener 3-1. Power is transmitted from the drive transmission assembly 2 to the second sprocket 3-2 via the chain 2-10, thereby driving the spiral brush roller 3-6 to rotate.

[0028] The conveyor assembly 4 includes a third mounting bracket 4-1, a drive wheel 4-2, a second hydraulic motor 4-3, a third fastener 4-4, a pulley pressure plate 4-5, a third flat key 4-6, a third bushing 4-7, a fifth bolt 4-8, a fifth nut 4-9, a conveyor belt 4-10, a fourth mounting bracket 4-11, a driven wheel 4-12, a fourth bushing 4-13, a driven shaft 4-14, a fourth flat key 4-15, a sixth nut 4-16, a second spherical bearing 4-17, and a sixth bolt 4-18. The second hydraulic motor 4-3 is bolted to the third mounting bracket 4-1, which is bolted to the frame 1. The drive wheel 4-2 and the third bushing 4-7 are fitted onto the output shaft of the second hydraulic motor 4-3. The drive wheel 4-2 is fixed to the output shaft of the second hydraulic motor 4-3 via the third flat key 4-6, the pulley pressure plate 4-5, and the third fastener 4-4. Driven wheel 4-12, fourth bushing 4-13, and second spherical bearing 4-17 are mounted on driven shaft 4-14. Driven wheel 4-12 is mounted on driven shaft 4-14 via fourth bushing 4-13 and fourth key 4-15. Second spherical bearing 4-17 is fixedly mounted on fourth mounting bracket 4-11 via sixth nut 4-16 and sixth bolt 4-18. Fourth mounting bracket 4-11 is mounted on frame 1 by bolts. Conveyor belt 4-10 is fitted into the grooves of drive wheel 4-2 and driven wheel 4-12. Belt conveyor assembly 4 drives drive wheel 4-2 via second hydraulic motor 4-3, which in turn drives driven wheel 4-12 to rotate via conveyor belt 4-10, thus achieving forward conveying of the cabbage.

[0029] The hydraulic speed control valve block 5 distributes flow and pressure through various hydraulic valves, precisely controlling the operating speed of the drive transmission assembly 2 and the hydraulic motor with transmission assembly 4, thereby adjusting the rotational speed of the spiral brush rollers 3-6 and the moving speed of the conveyor belts 4-10. The hydraulic speed control valve block 5 allows for flexible adjustment of the operating parameters of each transmission component as needed during the experiment, providing reliable data support for optimized design.

[0030] There are two speed sensors 6, mounted on the drive transmission assembly 2 and the belt transmission assembly 4 respectively, close to their respective hydraulic motors. The first speed sensor 6 is positioned near the first sprocket 2-6 on the first hydraulic motor 2-1, and the second speed sensor 6 is positioned near the drive wheel 4-2 mounted on the second hydraulic motor 4-3. The first speed sensor 6 is mounted on the first mounting bracket 2-3 via a connecting bracket, and the second speed sensor 6 is mounted on the third mounting bracket 4-1 via a connecting bracket. The speed sensors 6 monitor the operating speed of the hydraulic motors in real time, ensuring the accuracy and stability of various parameters during the experiment.

[0031] The experimental platform for removing old leaves from Chinese cabbage completes the functions of removing and conveying old leaves from Chinese cabbage through the following steps: S1: Rotating the cabbage and removing old leaves: The first hydraulic motor 2-1 transmits power to the second sprocket 3-2 of the spiral brush transmission assembly 3 through the first sprocket 2-6 and the chain 2-10, driving the spiral brush roller 3-6 to rotate. The cabbage achieves rotational motion under the action of the spiral brush roller 3-6, and the old leaves attached after the root is cut are thrown off by centrifugal force, thus completing the old leaf removal process. S2: Cabbage delivery: The hydraulic motor 4-3 drives the drive wheel 4-2, which in turn drives the driven wheel 4-12 to rotate via the conveyor belt 4-10. The conveyor belt 4-10 moves forward at a specific linear speed, smoothly transporting the cabbage after removing the old leaves to the next process. S3: Speed ​​Control and Parameter Optimization The hydraulic control speed regulating valve block 5 precisely controls the rotation speed of the spiral brush roller 3-6 and the moving speed of the conveyor belt 4-10 by adjusting the flow and pressure of the first hydraulic motor 2-1 and the second hydraulic motor 4-3. Two speed sensors 6 monitor the working speed of the first hydraulic motor 2-1 and the second hydraulic motor 4-3 in real time to ensure the accuracy and stability of various parameters during the experiment.

[0032] Through experimental testing, the optimal rotational speed range of the spiral brush roller 3-6 and the optimal linear speed range of the conveyor belt 4-10 can be determined, and they can be matched with the working walking speed of the cabbage harvester to provide data support for practical applications.

[0033] The experimental platform for removing old cabbage leaves adopts a modular design, with each functional component installed independently, facilitating assembly, maintenance, and upgrades, and adapting to the needs of different application scenarios. This modular design not only improves the flexibility of the experimental platform but also reduces maintenance costs, demonstrating high practical value and promising prospects for widespread adoption.

[0034] The overall operating principle of the experimental platform is as follows: First, the cabbage enters from the front of the experimental platform and begins to rotate through the spiral brush transmission assembly 3. During rotation, due to the rolling characteristics of the spiral brush rollers 3-6, the old leaves attached to the surface of the cabbage are thrown off by centrifugal force. At the same time, the hydraulic control speed regulating valve block 5 controls the rotation speed of the spiral brush rollers 3-6 by adjusting the flow and pressure of the first hydraulic motor 2-1, ensuring that the cabbage is not subjected to excessive or insufficient force during rotation, thus avoiding damage to the main body of the cabbage.

[0035] Next, the cabbages, after the old leaves have been removed, are received by the conveyor assembly 4. The conveyor belt 4-10, driven by the second hydraulic motor 4-3, moves forward at a specific linear speed, smoothly transporting the cabbages to the next process. The hydraulic control speed regulating valve block 5 also precisely controls the second hydraulic motor 4-3 to ensure that the linear speed of the conveyor belt 4-10 matches the processing requirements of the cabbages.

[0036] Finally, the speed sensor 6 monitors the operating speed of the first hydraulic motor 2-1 and the second hydraulic motor 4-3 in real time and feeds the detected data back to the control system. The system adjusts the setting of the hydraulic control speed regulating valve block 5 according to the feedback data to ensure that the various parameters of the experimental platform are always kept within the optimal range.

[0037] Through multiple experiments and tests, the experimental results under different parameters were recorded. The optimal rotational speed range of the spiral brush roller 3-6 and the optimal linear speed range of the conveyor belt 4-10 were analyzed and determined, providing reliable experimental data and technical reference for the optimized design of the old leaf removal device for cabbage harvesters.

[0038] The experimental platform's specific application scenarios include laboratory testing, field trials, and debugging in actual production environments. In the laboratory testing phase, the platform can simulate the processing of different types and sizes of cabbage, verifying the operational effectiveness and reliability of each functional component. In the field trial phase, the platform can be used in conjunction with a cabbage harvester to test its performance in a real-world operating environment. In actual production environments, the platform can serve as a debugging tool, helping operators quickly find optimal operating parameters and improve production efficiency. Furthermore, the platform's modular design allows it to adapt to different types of cabbage processing needs; for example, adjusting the rotation speed of the spiral brush roller (3-6) and the linear speed of the conveyor belt (4-10) for different cabbage varieties can meet diverse agricultural production requirements.

[0039] In summary, the experimental platform for removing old leaves from cabbage of the present invention solves the technical problem that existing cabbage harvesters cannot directly produce clean cabbage, providing important technical support for the field of agricultural machinery and possessing broad application potential. The experimental platform, through the coordinated operation of the spiral roller brush transmission component 3 and the belt transmission component 4, achieves the functions of removing and conveying old leaves from cabbage. Simultaneously, the combined use of the hydraulically controlled speed regulating valve block 5 and the speed sensor 6 ensures the accuracy and stability of various parameters during the experiment, providing reliable experimental data and technical references for the optimized design of the old leaf removal device for cabbage harvesters.

[0040] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. Furthermore, those skilled in the art will recognize that, based on the ideas of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. An experimental platform for removing old leaves from cabbage, characterized in that, include: Rack (1); Two drive transmission components (2) are installed at the rear of the upper part of the frame (1); Two spiral roller brush transmission assemblies (3) are installed at the front of the upper part of the frame (1), and the two spiral roller brush transmission assemblies (3) are respectively connected to the two drive transmission assemblies (2); The conveyor assembly (4) is installed in the middle of the upper part of the frame (1), located between the two spiral roller conveyor assemblies (3); A hydraulic control speed regulating valve block (5) is installed on the upper right side of the frame (1) and connects the two spiral roller brush transmission components (3) and the belt transmission component (4) to control the working status of the two drive transmission components (2) and the belt transmission component (4).

2. The experimental platform for removing old leaves from cabbage according to claim 1, characterized in that, The drive transmission assembly (2) includes a first hydraulic motor (2-1), a first mounting bracket (2-3), a first bushing (2-5), a first sprocket (2-6), and a chain (2-10). The first hydraulic motor (2-1) is mounted on the first mounting bracket (2-3); The first mounting bracket (2-3) is mounted on the frame (1); The first bushing (2-5) and the first sprocket (2-6) are sequentially sleeved on the output shaft of the first hydraulic motor (2-1); One end of the chain (2-10) is fitted onto the first sprocket (2-6), and the other end is fitted onto the spiral roller brush transmission assembly (3).

3. The experimental platform for removing old leaves from cabbage according to claim 2, characterized in that, The spiral brush transmission assembly (3) includes a second sprocket (3-2), a first outer spherical bearing (3-3), a second bushing (3-5), a spiral brush roller (3-6), and a second mounting bracket (3-9). The spiral brush roller (3-6) is fitted with the outer spherical bearing (3-3) on its shaft, and the first outer spherical bearing (3-3) is fixed on the second mounting bracket (3-9); The second mounting bracket (3-9) is mounted on the frame (1); The second sprocket (3-2), the first spherical bearing (3-3), and the second bushing (3-5) are sequentially sleeved on the shaft of the spiral brush roller (3-6); The other end of the chain (2-10) is fitted onto the second sprocket (3-2).

4. The experimental platform for removing old leaves from cabbage according to claim 3, characterized in that, The belt conveyor assembly (4) includes a third mounting bracket (4-1), a drive wheel (4-2), a second hydraulic motor (4-3), a third bushing (4-7), a conveyor belt (4-10), a fourth mounting bracket (4-11), a driven wheel (4-12), a fourth bushing (4-13), a driven shaft (4-14), and a second spherical bearing (4-17). The second hydraulic motor (4-3) is mounted on the third mounting bracket (4-1); The third mounting bracket (4-1) is mounted on the frame (1); The drive wheel (4-2) and the third bushing (4-7) are sequentially mounted on the output shaft of the second hydraulic motor (4-3); The driven wheel (4-12), the fourth bushing (4-13), and the second outer spherical bearing (4-17) are sequentially sleeved on the driven shaft (4-14); The second spherical bearing (4-17) is mounted on the fourth mounting bracket (4-11); The fourth mounting bracket (4-11) is mounted on the frame (1); The third mounting bracket (4-1) and the fourth mounting bracket (4-11) are positioned correspondingly; The conveyor belt (4-10) is sleeved between the drive wheel (4-2) and the driven wheel (4-12), and the conveying direction of the conveyor belt (4-10) is parallel to the shaft of the spiral brush roller (3-6).

5. The experimental platform for removing old leaves from cabbage according to claim 4, characterized in that, It also includes two speed sensors (6) respectively installed on the drive transmission assembly (2) and the belt transmission assembly (4). The two speed sensors (6) are close to the first hydraulic motor (2-1) and the second hydraulic motor (4-3) respectively, and are used to detect the speed of the first hydraulic motor (2-1) and the second hydraulic motor (4-3).

6. The experimental platform for removing old leaves from cabbage according to claim 4, characterized in that, The two spiral brush rollers (3-6) are arranged side by side and cooperate with the belt conveyor assembly (4) so ​​that the cabbage is rotated and brushed by the spiral brush rollers (3-6) while being conveyed forward by the conveyor belt (4-10) in the belt conveyor assembly (4).

7. The experimental platform for removing old leaves from cabbage according to claim 5, characterized in that, One of the speed sensors (6) is mounted on the first mounting bracket (2-3); Another speed sensor (6) is mounted on the third mounting bracket (4-1).

8. The experimental platform for removing old leaves from cabbage according to claim 5, characterized in that, The two speed sensors (6) can be used to indirectly measure the rotational speed of the spiral brush roller (3-6) and the moving speed of the conveyor belt (4-10).

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