Measuring platform of cotton stalk pulling device

Abstract

The utility model discloses a measuring platform of a cotton stalk pulling device, which comprises a frame, the front side of the frame is detachably connected with a traction vehicle, and the rear side of the frame is provided with a plurality of traveling wheels for moving; a plurality of shovel blades are arranged at intervals below the front side of the frame along the width direction of the frame and are used for shoveling cotton stalks from soil; a seedling pulling rod is further arranged on the frame, and the two ends of the seedling pulling rod are rotationally connected with the two opposite sides of the frame in the width direction respectively; an upper seedling pulling roller and a lower seedling pulling roller are arranged between the seedling pulling rod and the rear side of the frame; the driving system can simultaneously drive the upper seedling pulling roller and the lower seedling pulling roller to rotate in opposite directions through the transmission system; in the working process, when the frame moves forwards, the driving system drives the seedling pulling rod, the upper seedling pulling roller and the lower seedling pulling roller to rotate through the transmission system, the seedling pulling rod can act on crops when rotating, and the crops are wound between the upper seedling pulling roller and the lower seedling pulling roller behind the seedling pulling rod from the lower portion of the seedling pulling rod.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, specifically to a measuring platform for a cotton stalk pulling device. Background Technology

[0002] A cotton stalk puller is an agricultural machine used to remove cotton stalks after harvesting. After cotton is harvested, the stalks need to be removed. The stalks can be crushed and processed for use as quick compost in farmland, or even for producing methane fuel. Currently, the traditional method of cotton stalk removal is manual, which is labor-intensive and inefficient, severely limiting the economic benefits for cotton farmers. Existing cotton stalk pullers mostly pull directly, which can lead to broken stalks or a high rate of missed stalks, resulting in residual stalks in the field and increased costs for subsequent processing. Furthermore, existing cotton stalk pullers are often designed for single soil conditions or cotton varieties, making it difficult to adapt to the diverse needs of different planting areas (such as sandy soil, clay soil, and high / low stalk conditions). They also lack real-time monitoring and feedback systems, making it difficult to accurately control key parameters such as pulling force and angle. Therefore, there is an urgent need for an experimental platform capable of precisely controlling these parameters. Utility Model Content

[0003] To address the aforementioned shortcomings of existing technologies, the purpose of this utility model is to provide a measurement platform for a cotton stalk pulling device. This platform solves the problems of existing technologies where direct pulling by cotton stalk pullers can lead to broken or missed cotton stalks, leaving cotton stalks in the field, increasing subsequent processing costs, and the lack of a testing platform for precise control of key parameters.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A measuring platform for a cotton stalk pulling device includes a frame. The front of the frame is detachably connected to a traction vehicle, and the rear of the frame has multiple wheels for movement. Multiple shovels are spaced apart along the width of the frame below the front of the frame. These shovels are detachably fixed to the frame and used to scoop cotton stalks from the soil. A pulling stalk is also mounted on the frame, positioned along the width of the frame and on the side of the frame away from the shovels. Its two ends are rotatably connected to opposite sides of the frame along the width. An upper pulling roller and a lower pulling roller are located between the pulling stalk and the rear of the frame. The upper pulling roller is located below the pulling stalk and close to the rear of the frame. The lower pulling roller is located below the upper pulling roller and near the traveling wheel, and the axes of the upper pulling roller, lower pulling roller, and pulling stalk are parallel to each other. The roller shafts at both ends of the upper pulling roller are rotatably connected to the opposite sides of the frame, and the roller shafts at both ends of the lower pulling roller are rotatably connected to the opposite sides of the frame. The roller shafts on the same side of the upper and lower pulling rollers are respectively connected to the transmission system. The drive system can simultaneously drive the pulling stalk and the upper pulling roller to rotate downwards towards the blade, and can also simultaneously drive the lower pulling roller to rotate upwards towards the traveling wheel, so that the upper and lower pulling rollers rotate in opposite directions. During operation, when the frame moves forward, the drive system drives the pulling stalk, upper pulling roller, and lower pulling roller to rotate through the transmission system. When the pulling stalk rotates, it acts on the crop, causing the crop to be drawn from below the pulling stalk into the space between the upper and lower pulling rollers behind the pulling stalk.

[0006] Preferably, it also includes a control system and a measurement system; wherein, the control system includes a controller and a display screen 37; the detection system includes multiple multi-axis force sensors, torque sensors, speed sensors, direction sensors and speed sensors; the controller is connected to the multi-axis force sensors, torque sensors, speed sensors, direction sensors and speed sensors and the display screen circuit respectively, and can receive the detection data sent by the multi-axis force sensors, torque sensors, speed sensors, direction sensors and speed sensors, and send the processed data to the display screen for display.

[0007] Preferably, the drive system includes a drive motor, a hydraulic pump, hydraulic motor I, and hydraulic motor II; the transmission system includes a first driven wheel, a second driven wheel, and a driven chain; wherein, the drive motor is fixedly connected to the frame, and hydraulic motor I and hydraulic motor II are both fluidly connected to the hydraulic pump, enabling the drive motor to drive the hydraulic pump to pump fluid into hydraulic motor I and hydraulic motor II; hydraulic motor I is drively connected to the frame, and the drive end of hydraulic motor I is fixedly connected to one end of the reel; when the drive motor drives the hydraulic pump to work, the hydraulic pump delivers fluid to hydraulic motor I, thereby driving the drive end of hydraulic motor I to rotate downwards towards the blade, and driving the reel together. The first driven wheel is fixedly connected to the roller shaft of the upper pulling roller, and the second driven wheel is fixedly connected to the roller shaft of the lower pulling roller. The first and second driven wheels are located in the same vertical plane as the drive end of the hydraulic motor II. The hydraulic motor II is connected to the frame drive. One end of the driven chain is sleeved on the outside of the drive end of the hydraulic motor II, and the other end passes around the outer wall of the second driven wheel facing the traveling wheel and is sleeved on the outside of the second driven wheel. When the motor drives the hydraulic pump to work, the hydraulic pump drives the drive end of the hydraulic motor II to rotate downward toward the direction close to the blade by supplying fluid to the hydraulic motor II. At the same time, the lower pulling roller rotates upward toward the direction close to the blade under the drive of the driven chain.

[0008] Preferably, the drive system includes a drive motor located at the front of the frame and fixedly connected to it; the transmission system includes a drive wheel, driven wheel I, driven wheel II, driven wheel III, a tension wheel, transmission chain I, and transmission chain II, and the drive wheel, driven wheel I, driven wheel II, driven wheel III, tension wheel, transmission chain I, and transmission chain II are located on the same side of the frame; wherein, the drive shaft of the drive motor is fixedly connected to the drive wheel, and the shaft at one end of the reel is fixedly connected to driven wheel I, and the drive wheel is connected to the driven wheel via a transmission chain. Chain I drives driven wheel I to rotate; the roller shaft of the upper pulling roller is fixedly connected to driven wheel II, and the roller shaft of the lower pulling roller is fixedly connected to driven wheel III. The tension wheel is located below driven wheel II and driven wheel III is on the side opposite to driven wheel II. The tension wheel is rotatably connected to the frame, and the diameter of the tension wheel is smaller than the diameter of driven wheel II. The driving wheel drives driven wheel II and tension wheel to rotate simultaneously through transmission chain II, and drives driven wheel III to rotate in the opposite direction to driven wheel II through the outside of transmission chain II.

[0009] Preferably, a damping rod is provided between the traveling wheel and the frame. One end of the damping rod is fixedly connected to the frame, and the other end is rotatably connected to the axle of the traveling wheel. A shock-absorbing spring is sleeved on the outside of the damping rod. One end of the shock-absorbing spring is fixedly connected to the end of the damping rod away from the traveling wheel, and the other end extends to the end of the damping rod near the traveling wheel.

[0010] Preferably, a clamping mechanism is provided at both ends of the upper pulling roller; the clamping mechanism includes a mounting base, which is a U-shaped structure with an open end and a closed end; a guide rail is provided on the side walls on opposite sides of the mounting base, the length direction of the guide rail is perpendicular to the axis of the pulling rod; a slider is provided in the open end of the mounting base, with both ends of the slider passing through the guide rail, allowing the slider to slide along the length direction of the guide rail; a bearing seat is provided on the slider, the bearing seat is sleeved on the outside of the upper pulling roller shaft and fixedly connected to the slider; a connecting rod is provided above the bearing seat, one end of the connecting rod is fixedly connected to the top of the bearing seat, and the other end extends upward after passing through the closed end of the mounting base; a compression spring is sleeved on the outside of the connecting rod, one end of the compression spring is fixedly connected to the bearing seat, and the other end is fixedly connected to the closed end of the mounting base.

[0011] Preferably, stripe I and stripe II are provided on the surface of the upper reaping roller. Stripe I spirally winds from one end of the upper reaping roller to the middle, and stripe II spirally winds from the other end of the upper reaping roller to the middle and then connects with stripe I.

[0012] Preferably, a cutting blade is provided between two adjacent shovel blades. The cutting blade is disc-shaped, and the blade edge is arranged along the circumference of the disc. The cutting blade is arranged vertically, and its plane is perpendicular to the axis of the reel. The cutting blade is fixedly connected to one end of the connecting bracket, and the other end of the connecting bracket is detachably fixedly connected to the vehicle frame.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] 1. In this utility model, upright and fallen cotton stalks are bent backward by pulling the straw and fed between the upper and lower pulling rollers. The cotton stalks are clamped by the opposing movement of the upper and lower pulling rollers, which can easily remove the cotton stalks. At the same time, this removal method can avoid the cotton stalks being broken, thus preventing most of the cotton stalks from remaining in the soil. It also reduces the missed removal rate and reduces subsequent processing costs.

[0015] 2. In this utility model, the positions of the shovel and the film-cutting blade on the front side of the frame can be adjusted according to the row spacing, which also reduces the requirements for cotton planting patterns, enabling it to meet the needs of different planting patterns. The entire device has the advantages of simple structure and stable operation.

[0016] 3. The measuring platform described in this utility model can not only be used directly as a cotton stalk pulling device, but also be used to measure and optimize the cotton stalk device to achieve the best pulling effect. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the structure of a measurement platform embodiment of a cotton stalk pulling device according to this utility model.

[0018] Figure 2 This is a structural schematic diagram of one implementation of a drive system and transmission system.

[0019] Figure 3 This is a schematic diagram of the structure of a measurement platform embodiment of another cotton stalk pulling device in this utility model.

[0020] Figure 4 This is a schematic diagram of another implementation of the transmission system.

[0021] Figure 5 This is a schematic diagram of the upper and lower pulling rollers.

[0022] Figure 6 This is a schematic diagram of the structure of a rice-pulling stalk.

[0023] Figure 7 This is a schematic diagram of the structure of a film cutting knife.

[0024] Figure 8 This is a schematic diagram of the clamping mechanism.

[0025] Figure 9 This is a schematic diagram of the walking wheel.

[0026] In the diagram: 1. Frame; 2. Traveling wheel; 3. Shovel; 4. Stalk; 5. Upper stalk roller; 6. Lower stalk roller; 7. First drive motor; 8. Hydraulic pump; 9. Hydraulic motor I; 10. Hydraulic motor II; 11. First driven wheel; 12. Second driven wheel; 13. Driven chain; 14. Second drive motor; 15. Driven wheel I; 16. Driven wheel II; 17. Driven wheel III; 18. Tensioning wheel; 19. Transmission chain I; 20. Transmission chain II; 21. Damping rod; 22. Shock absorber spring; 23. Mounting base; 24. Guide rail; 25. Slider; 26. Bearing seat; 27. Connecting rod; 28. Compression spring; 29. ​​Stripe I; 30. Stripe II; 31. Film cutter; 32. Connecting bracket; 33. Traction frame; 34. Blade; 35. Pipe; 36. Display screen; 37. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] This utility model provides a measuring platform for a cotton stalk pulling device, such as... Figures 1-9As shown, the device includes a frame 1, the front of which is detachably connected to a towing vehicle, and multiple wheels 2 for movement on its rear side. The frame is a box-frame structure, as shown in the figure. A towing frame 34 is located on the front of the frame for detachable and fixed connection to the towing vehicle. Multiple shovels 3 are spaced apart along the width of the frame below the front side. One end of each shovel is detachably fixed to the frame, and the other end is bent downwards in a direction away from the frame to form a shoveling end for shoveling cotton stalks from the soil. A stalk 4 is also provided on the frame, positioned along the width of the frame on the side away from the shovels, with its two ends rotatably connected to opposite sides of the frame along the width. An upper pulling roller 5 and a lower pulling roller 6 are provided between the pulling stalk 4 and the rear side of the frame 1. The upper pulling roller is located below the pulling stalk and close to the rear side of the frame, while the lower pulling roller is located below the upper pulling roller and close to the side of the traveling wheel. The axes of the upper pulling roller, the lower pulling roller, and the pulling stalk are parallel to each other. The roller shafts at both ends of the upper pulling roller are rotatably connected to the opposite sides of the frame, and the roller shafts at both ends of the lower pulling roller are also rotatably connected to the opposite sides of the frame. The roller shafts on the same side of the upper and lower pulling rollers are respectively connected to the transmission system. There is a gap between the side of the lower pulling roller near the upper pulling roller and the side of the upper pulling roller near the lower pulling roller. This gap is used to accommodate the cotton stalk, but the size of the gap is smaller than the size of the cotton stalk stem. Only when the upper and lower pulling rollers rotate relative to each other can the cotton stalk be firmly clamped and pulled up. The frame is also equipped with a drive system and a transmission system. The drive system, through the transmission system, can simultaneously drive the reeling stalk and the upper reeling roller to rotate downwards towards the blade, and simultaneously drive the lower reeling roller to rotate upwards towards the blade, ultimately causing the upper and lower reeling rollers to rotate in opposite directions. During operation, as the frame moves forward, the drive system drives the reeling stalk, upper reeling roller, and lower reeling roller to rotate through the transmission system. The rotation of the reeling stalk acts on the crop stalk, causing the crop to be drawn from below the reeling stalk into the space between the upper and lower reeling rollers behind it. Simultaneously, because the upper and lower reeling rollers rotate in opposite directions, the crop stalk, after entering the gap between them, is conveyed towards the rear of the frame under the action of this relative rotation, thus pulling the entire crop up from the ground.

[0029] In some embodiments of this utility model, a control system and a measurement system are also included. The control system includes a controller and a display screen 37. The detection system includes multiple multi-axis force sensors, torque sensors, speed sensors, direction sensors, and speed sensors. The controller is connected to the multi-axis force sensors, torque sensors, speed sensors, direction sensors, and speed sensors, as well as the display screen circuit, and is capable of receiving detection data from the multi-axis force sensors, torque sensors, speed sensors, direction sensors, and speed sensors, and sending the processed data to the display screen for display. This utility model can test the cotton stalk pulling device through the control system and measurement system. In this utility model, the control system includes a controller and a display screen 37; the detection system includes multiple multi-axis force sensors, torque sensors, speed sensors, direction sensors, and speed sensors. The controller is connected to the multi-axis force sensors, torque sensors, speed sensors, direction sensors, and speed sensors, as well as the display screen 37 circuit, and is capable of receiving detection data from the multi-axis force sensors, torque sensors, speed sensors, direction sensors, and speed sensors, and sending the processed data to the display screen for display. A multi-axis force sensor is installed at the connection between the blade and the frame, capable of simultaneously measuring forces in three directions: X (horizontal traction), Y (lateral), and Z (vertical penetration), and transmitting the data to the controller. A torque sensor and a speed sensor are installed at the connection point between the reel and the transmission system to measure the rotational torque and speed of the reel, transmitting the measured data to the controller. The measurement directions of the torque and speed sensors must be consistent with the movement direction of the reel to avoid lateral sensitivity errors. The operator can adjust the speed of the reel based on its effectiveness in conveying the cotton stalks, ensuring that as many stalks as possible are conveyed between the upper and lower reeling rollers. Similarly, a torque sensor, a speed sensor, and a direction sensor are installed at the connection points between the upper and lower reeling rollers and the transmission system to measure the torque, speed, and relative movement direction of the upper and lower reeling rollers (i.e., the direction of rotation of the upper and lower reeling rollers, ensuring they rotate in opposite directions), transmitting the measured data to the controller. The direction sensor detects the rotation direction of the upper and lower pulling rollers, allowing researchers to confirm that they are rotating relative to each other. By observing the torque difference between the upper and lower rollers, researchers can determine if there are blockages or uneven loads in the cotton stalk delivery and pulling process. Simultaneously, by observing the amount of cotton stalks remaining in the soil, researchers can adjust the rotation speed of the upper and lower rollers in a timely manner to ensure that they not only pull up as many cotton stalks as possible but also pull up the stalks as whole as possible, minimizing residue. A speed sensor mounted on the frame measures the speed of the device during operation. Combined with a multi-axis force sensor on the blade, it measures the power consumed by the blade when lifting cotton stalks, thus allowing for the selection of the optimal blade structure.The controller includes a data collection module and a data processing module. The data collection module collects data from various sensors and sends it to the data processing module. The data processing module calculates the power of each component and displays the results on a screen. Through the control and measurement systems, researchers can gain a more intuitive understanding of the power of each component. While testing the cotton stalk pulling device, they can adjust the positions of each component based on the actual cotton stalk pulling effect, thereby further improving the structure of the cotton stalk pulling device.

[0030] In some embodiments of this utility model, the drive system and transmission system can have various implementation forms, such as Figures 1-2As shown, the drive system includes a first drive motor 7, a hydraulic pump 8, a hydraulic motor I 9, and a hydraulic motor II 10; the transmission system includes a first driven wheel 11, a second driven wheel 12, and a driven chain 13. The first drive motor is fixedly connected to the vehicle frame, and both hydraulic motors I and II are fluidly connected to the hydraulic pump, enabling the first drive motor to drive the hydraulic pump to pump fluid into hydraulic motors I and II. In actual use, the frame is also equipped with an oil tank that provides liquid oil to hydraulic motors I and II. The oil tank is fixedly connected to the frame and is fluidly connected to hydraulic motors I and II through pipe 36, so that the oil tank can stably and continuously provide the liquid required for the rotation of hydraulic motors I and II. At the same time, flow valves are installed on the pipes at the feed inlets of hydraulic motors I and II. By controlling the liquid flow, the rotation speed of hydraulic motors I and II is controlled, thereby adjusting the rotation speed of the upper and lower pulling rollers. This can further adjust the transmission speed of the cotton stalks when the upper and lower pulling rollers rotate relative to each other, so that the cotton stalks are not suddenly pulled up, but slowly and continuously pulled up. The former is prone to causing the cotton stalks to break and leave part of them in the soil when pulled up, while the latter can ensure that the cotton stalks are pulled up whole and do not remain in the soil. The hydraulic motor I is connected to the frame drive, and the drive end of the hydraulic motor I is fixedly connected to one end of the shovel. When the first drive motor drives the hydraulic pump, the hydraulic pump delivers fluid to the hydraulic motor I, thereby driving the drive end of the hydraulic motor I to rotate downwards towards the blade, and causing the shovel to rotate together. The first driven wheel is fixedly connected to the roller shaft of the upper shovel roller, and the second driven wheel is fixedly connected to the roller shaft of the lower shovel roller. The first and second driven wheels are located in the same vertical plane as the drive end of the hydraulic motor II. The hydraulic motor II is connected to the frame drive. One end of the driven chain is sleeved on the outside of the drive end of the hydraulic motor II, and the other end passes around the outer wall of the second driven wheel facing the traveling wheel and is sleeved on the outside of the second driven wheel. When the first drive motor drives the hydraulic pump, the hydraulic pump delivers fluid to the hydraulic motor II, driving the drive end of the hydraulic motor II to rotate downwards towards the blade, and at the same time, the lower shovel roller rotates upwards towards the blade under the drive of the driven chain. In this embodiment, the measurement system also includes hydraulic system power monitoring. A pressure sensor is installed at the outlet of the hydraulic pump, and a flow meter is installed in the hydraulic pipeline to measure pressure and flow rate. Real-time power is calculated by multiplying hydraulic pressure by flow rate. At the same time, a current sensor and a voltage sensor are installed on the first drive motor to monitor the current and voltage of the first drive motor in real time. The monitored data is sent to the controller, which processes and outputs the real-time electrical power of the first drive motor and displays it on the display screen.Meanwhile, hydraulic motor I and hydraulic motor II can quantitatively output speed and torque. The measurement system of this invention can measure the power consumed when the cotton stalk is pulled up, so as to quantitatively measure the power consumed when the cotton stalk is pulled up, thereby facilitating adjustment.

[0031] In some embodiments of this utility model, such as Figures 3-4 As shown, the drive system includes a second drive motor 14, located on the front side of the frame and fixedly connected to it. The transmission system includes a drive wheel 15, driven wheel I 16, driven wheel II 17, driven wheel III 18, tension wheel 19, transmission chain I 20, and transmission chain II 21, with the drive wheel, driven wheel I, driven wheel II, driven wheel III, tension wheel, transmission chain I, and transmission chain II located on the same side of the frame. The drive shaft of the second drive motor is fixedly connected to the drive wheel, and the axis of the drive shaft coincides with the axis of the drive wheel. The shaft at one end of the reel is fixedly connected to driven wheel I, and the axis of the reel coincides with the axis of driven wheel I. The drive wheel can drive driven wheel I to rotate around its axis via transmission chain I. The roller shaft of the upper reeling roller is fixedly connected to driven wheel II, and the axis of the upper reeling roller coincides with the axis of driven wheel II. The roller shaft of the lower pulling roller is fixedly connected to the driven wheel III, and the axis of the lower pulling roller coincides with the axis of the driven wheel III. The tension wheel is located below the driven wheel II, and the driven wheel III is on the side opposite to the driven wheel II. The tension wheel is rotatably connected to the frame, and its diameter is smaller than that of the driven wheel II. The driving wheel drives both the driven wheel II and the tension wheel to rotate simultaneously via the transmission chain II, and also drives the driven wheel III to rotate in the opposite direction to the driven wheel II via the outer side of the transmission chain II. The driving wheel has chain grooves I and II, both arranged circumferentially around the driving wheel and spaced apart along its width. The transmission chain I is located in chain groove I, and the transmission chain II is located in chain groove II. When the driving wheel rotates, the transmission chains I and II do not interfere with each other when driving the driven wheel I, driven wheel II, and tension wheel to rotate respectively, ensuring the stable operation of the transmission system. In this embodiment, the measurement system also includes drive system power monitoring. A current sensor and a voltage sensor are installed on the second drive motor to collect current and voltage data in real time and send the collected data to the controller. The controller processes the data and outputs the real-time electrical power of the second drive motor, which is then displayed on the screen.

[0032] In some embodiments of this utility model, such as Figure 9As shown, a damping rod 22 is provided between the traveling wheel and the frame. One end of the damping rod is fixedly connected to the frame, and the other end is rotatably connected to the axle of the traveling wheel. A shock-absorbing spring 23 is sleeved on the outside of the damping rod. One end of the shock-absorbing spring is fixedly connected to the end of the damping rod away from the traveling wheel, and the other end extends to the end of the damping rod near the traveling wheel and abuts against the axle of the traveling wheel. When the traveling wheel travels on uneven road surfaces, the shock-absorbing spring can buffer and absorb shocks, and at the same time, the shock-absorbing spring can also make the traveling wheel better conform to the road surface.

[0033] In some embodiments of this utility model, such as Figure 8As shown, a clamping mechanism is provided at both ends of the upper reaming roller; the clamping mechanism includes a mounting base 24, which is a U-shaped structure with an open end and a closed end. The mounting base is set vertically downwards with its open end facing downwards. A guide rail 25 is provided on the side walls on opposite sides of the mounting base, and the length direction of the guide rail is perpendicular to the axis of the upper reaming roller; a slider 26 is provided in the open end of the mounting base, and both ends of the slider pass through the guide rail and continue to extend outwards, so that the slider can slide along the length direction of the guide rail, while the slider will not slip out of the guide rail. A bearing seat 27 is provided on the slider, which is sleeved on the outside of the upper reaming roller shaft and fixedly connected to the slider. A connecting rod 28 is provided above the bearing seat, one end of which is fixedly connected to the top of the bearing seat, and the other end extends upward after passing through the closed end of the mounting seat, allowing the connecting rod to move vertically. A compression spring 29 is sleeved on the outside of the connecting rod, one end of which is fixedly connected to the bearing seat, and the other end is fixedly connected to the inside of the closed end of the mounting seat. In this embodiment, regardless of which transmission system is used, the transmission system is located outside the pressing mechanism. When a hydraulic system is used, the roller shaft of the upper reaming roller is fixedly connected to the first driven wheel after passing through the bearing seat; when another transmission system is used, the roller shaft of the upper reaming roller is fixedly connected to the driven wheel II after passing through the bearing seat. There is a certain gap between the pressing mechanism and the transmission system so that they do not interfere with each other during operation. The pressing mechanism is used to adjust the positional relationship between the upper and lower pulling rollers. When a large number of cotton stalks enter between the upper and lower pulling rollers, the pressing mechanism can lift the upper pulling roller upwards, preventing too many cotton stalks from being pinched and broken by the upper and lower pulling rollers, thus causing some cotton stalks to remain in the soil. Specifically, when too many cotton stalks enter between the upper and lower pulling rollers, an upward force is applied to the upper pulling roller. The upper pulling roller moves an appropriate distance upward along the guide rail via a slider connected to the bearing seat, increasing the gap between the upper and lower pulling rollers. At the same time, the bearing seat also drives the connecting rod to move an appropriate distance upward. However, due to the squeezing action of the compression spring, the upward movement of the upper pulling roller is not too large, ensuring that the gap between the upper and lower pulling rollers does not become too large, thus failing to effectively pull the cotton stalks, and also not affecting the relative rotation between the upper and lower pulling rollers. This ensures that an upward pulling force is continuously applied to the cotton stalks during rotation, allowing the cotton stalks to be pulled up as a whole, reducing residue in the soil.

[0034] In some embodiments of this utility model, such as Figure 5As shown, stripes I 30 and II 31 are provided on the surface of the upper pulling roller 5. Stripe I spirally winds from one end of the upper pulling roller to its middle, and stripe II spirally winds from the other end of the upper pulling roller to its middle and then connects with stripe I. Stripes I and II enable the entire cotton stalk to be clamped by the upper and lower pulling rollers, thereby making the pulling force more uniform and appropriate, and further ensuring that the cotton stalk is pulled up as a whole while avoiding breakage.

[0035] In some embodiments of this utility model, such as Figure 3 and Figure 7 As shown, a film-cutting blade 32 is also provided between two adjacent shovel blades. This film-cutting blade is disc-shaped, with the blade edge arranged along the circumference of the disc. The film-cutting blade is arranged vertically, and its plane is perpendicular to the axis of the cotton stalk. One end of the film-cutting blade is fixedly connected to the connecting bracket 33, and the other end of the connecting bracket is detachably fixedly connected to the vehicle frame. The film-cutting blade can cut and break the plastic film on the ground to prevent it from affecting the pulling of the cotton stalks. At the same time, the position of the film-cutting blade, like the shovel blade, can be adjusted to meet the needs of different cotton planting methods.

[0036] In some embodiments of this utility model, such as Figure 1 , 3 As shown in Figure 6, multiple blades 35 are provided on the outer side of the stalk. The blades are evenly spaced around the circumference of the stalk, and the length direction of the blades is consistent with the length direction of the stalk, so that a V-shaped groove is formed between two adjacent blades. This helps to better feed the cotton stalk into the gap between the upper and lower stalk rollers.

[0037] Working process: The measuring platform of the cotton stalk pulling device of this utility model is connected to the traction vehicle via a traction frame on the chassis. Under the traction of the traction vehicle, the device can slide and move on the ground via the wheels on the chassis. At the same time, the drive system is started. When the chassis moves forward, the drive system drives the pulling stalk, upper pulling roller and lower pulling roller to rotate through the transmission system. When the pulling stalk rotates, it can act on the crop, bending the cotton stalk backward according to the movement trajectory of the pulling stalk, so that the whole cotton stalk is rolled from above the pulling stalk into the space between the upper and lower pulling rollers behind the pulling stalk, thereby pulling up the whole cotton stalk and avoiding the cotton stalk breaking during the pulling process, which would leave most of the cotton stalk in the soil. This process is carried out continuously as the chassis moves.

[0038] In this invention, upright and fallen cotton stalks are bent backward by a pulling rod and fed between an upper and lower pulling roller. The opposing movement of the upper and lower rollers clamps the cotton stalks fed by the pulling rod, easily removing them. This method avoids breaking the stalks, preventing most of them from remaining in the soil, and reduces the missed removal rate, thus lowering subsequent processing costs. The position of the shovel and film-cutting blade on the front of the frame can be adjusted according to the row spacing, reducing the requirements for different cotton planting patterns and allowing it to meet the needs of various planting methods. The entire device has the advantages of simple structure and stable operation.

[0039] This utility model is not limited to the above-described embodiments. Any structure that is the same as or similar to the above-described embodiments of this utility model is within the protection scope of this utility model.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and not to limit the technical solutions. Those skilled in the art should understand that any modifications or equivalent substitutions to the technical solutions of this utility model that do not depart from the spirit and scope of this technical solution should be covered within the scope of the claims of this utility model.

Claims

1. A measuring platform for a cotton stalk pulling device, characterized in that, Includes a frame (1), the front of which is detachably connected to the towing vehicle, and the rear of which is provided with multiple wheels for movement (2). Multiple shovels (3) are provided at intervals along the width direction on the lower front side of the frame. The shovels are detachably and fixedly connected to the frame and are used to shovel cotton stalks out of the soil. A shovel (4) is also provided on the frame. The shovel is set along the width direction of the frame and is located on the side of the frame away from the blade. Its two ends are rotatably connected to the opposite sides of the frame along the width direction. An upper pulling roller (5) and a lower pulling roller (6) are provided between the pulling stalk and the rear side of the frame. The upper pulling roller is located below the pulling stalk and close to the rear side of the frame, and the lower pulling roller is located below the upper pulling roller and close to the side of the traveling wheel. The axes of the upper pulling roller, the lower pulling roller and the pulling stalk are parallel to each other. The roller shafts at both ends of the upper pulling roller are rotatably connected to the opposite sides of the frame, and the roller shafts at both ends of the lower pulling roller are rotatably connected to the opposite sides of the frame. The roller shafts of the upper pulling roller and the lower pulling roller on the same side are respectively connected to the transmission system. The drive system can simultaneously drive the pulling stalk and the upper pulling roller to rotate downwards towards the blade, and can also simultaneously drive the lower pulling roller to rotate upwards towards the side of the traveling wheel, so that the upper pulling roller and the lower pulling roller rotate in opposite directions.

2. The measurement platform according to claim 1, characterized in that, It also includes a control system and a measurement system; wherein, the control system includes a controller and a display screen (37); the detection system includes multiple multi-axis force sensors, torque sensors, speed sensors, direction sensors and speed sensors; the controller is connected to the multi-axis force sensors, torque sensors, speed sensors, direction sensors and speed sensors and the display screen circuit respectively, and can receive the detection data sent by the multi-axis force sensors, torque sensors, speed sensors, direction sensors and speed sensors, and send the processed data to the display screen for display.

3. The measurement platform according to claim 1, characterized in that, The drive system includes a first drive motor (7), a hydraulic pump (8), a hydraulic motor I (9), and a hydraulic motor II (10); the transmission system includes a first driven wheel (11), a second driven wheel (12), and a driven chain (13). The first drive motor is fixedly connected to the vehicle frame, and both hydraulic motor I and hydraulic motor II are fluidly connected to the hydraulic pump, enabling the first drive motor to drive the hydraulic pump to pump fluid into hydraulic motor I and hydraulic motor II. The hydraulic motor I is connected to the frame drive, and the drive end of the hydraulic motor I is fixedly connected to one end of the reel; when the first drive motor drives the hydraulic pump to work, the hydraulic pump delivers fluid to the hydraulic motor I, thereby driving the drive end of the hydraulic motor I to rotate downward in the direction close to the blade, and causing the reel to rotate together. The first driven wheel is fixedly connected to the roller shaft of the upper pulling roller, and the second driven wheel is fixedly connected to the roller shaft of the lower pulling roller. The first and second driven wheels are located in the same vertical plane as the drive end of the hydraulic motor II. The hydraulic motor II is connected to the frame drive. One end of the driven chain is sleeved on the outside of the drive end of the hydraulic motor II, and the other end passes around the outer wall of the second driven wheel facing the traveling wheel and is sleeved on the outside of the second driven wheel. When the first drive motor drives the hydraulic pump to work, the hydraulic pump drives the drive end of the hydraulic motor II to rotate downward toward the blade by supplying fluid to the hydraulic motor II, and at the same time, the driven chain causes the lower reaping roller to rotate upward toward the blade.

4. The measurement platform according to claim 1, characterized in that, The drive system includes a second drive motor (14), which is located on the front side of the frame and fixedly connected to the frame; the transmission system includes a drive wheel (15), driven wheel I (16), driven wheel II (17), driven wheel III (18), tension wheel (19), transmission chain I (20), and transmission chain II (21), and the drive wheel, driven wheel I, driven wheel II, driven wheel III, tension wheel, transmission chain I, and transmission chain II are located on the same side of the frame; wherein, the drive shaft of the second drive motor is fixedly connected to the drive wheel, and the shaft at one end of the reaper is connected to... Driven wheel I is fixedly connected, and driven wheel I is driven to rotate via transmission chain I. The roller shaft of the upper pulling roller is fixedly connected to driven wheel II, and the roller shaft of the lower pulling roller is fixedly connected to driven wheel III. The tension wheel is located below driven wheel II and driven wheel III is on the side opposite to driven wheel II. The tension wheel is rotatably connected to the frame, and the diameter of the tension wheel is smaller than the diameter of driven wheel II. Drive wheel drives driven wheel II and tension wheel to rotate simultaneously via transmission chain II, and drives driven wheel III to rotate in the opposite direction to driven wheel II via the outside of transmission chain II.

5. The measurement platform according to claim 1, characterized in that, A damping rod (22) is provided between the traveling wheel and the frame. One end of the damping rod is fixedly connected to the frame, and the other end is rotatably connected to the axle of the traveling wheel. A shock-absorbing spring (23) is sleeved on the outside of the damping rod. One end of the shock-absorbing spring is fixedly connected to the end of the damping rod away from the traveling wheel, and the other end extends to the end of the damping rod close to the traveling wheel.

6. The measurement platform according to claim 1, characterized in that, A clamping mechanism is provided at both ends of the upper pulling roller; the clamping mechanism includes a mounting base (24), which is a U-shaped structure with an open end and a closed end; a guide rail (25) is provided on the side walls on opposite sides of the mounting base, the length direction of the guide rail is perpendicular to the axis of the pulling rod; a slider (26) is provided in the open end of the mounting base, the two ends of the slider pass through the guide rail, so that the slider can slide along the length direction of the guide rail; a bearing seat (27) is provided on the slider, the bearing seat is sleeved on the outside of the upper pulling roller shaft and fixedly connected to the slider; a connecting rod (28) is provided above the bearing seat, one end of the connecting rod is fixedly connected to the top of the bearing seat, and the other end extends upward after passing through the closed end of the mounting base; a clamping spring (29) is sleeved on the outside of the connecting rod, one end of the clamping spring is fixedly connected to the bearing seat, and the other end is fixedly connected to the closed end of the mounting base.

7. The measurement platform according to claim 1, characterized in that, The surface of the upper plucking roller is provided with stripe I (30) and stripe II (31). Stripe I spirally winds from one end of the upper plucking roller to the middle, and stripe II spirally winds from the other end of the upper plucking roller to the middle and then connects with stripe I.

8. The measurement platform according to claim 1, characterized in that, A cutting blade (32) is provided between two adjacent shovel blades. The cutting blade is disc-shaped and the blade edge is arranged along the circumference of the disc. The cutting blade is arranged vertically and its plane is perpendicular to the axis of the stalk. The cutting blade is fixedly connected to one end of the connecting bracket (33), and the other end of the connecting bracket is detachably fixedly connected to the frame.

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