An arc plate fitting cotton stalk extraction device and extraction method

Abstract

The present invention relates to the technical field of cotton stalk pulling equipment, and in particular to an arc plate-fitted cotton stalk pulling device and a pulling method. The transmission box of the pulling device is located at the head end of a frame. The bottom of the transmission box is connected to the frame. The input end of the transmission box is connected to a traction power device. The output end of the transmission box is connected to a transmission shaft. A driving sprocket is provided at the end of the transmission shaft. The transmission box transmits power to a first roller of a feeding mechanism and a second roller of a pulling mechanism respectively through a driving sprocket, a first transmission chain, a double-row sprocket, a second transmission chain, a second driven sprocket and a first driven sprocket. The cotton stalk is rolled into a pulling channel formed between a pressing plate and a second roller, and the pressing plate and the second roller apply a clamping force to the cotton stalk, so that the cotton stalk moves with the traction power device, and then the cotton stalk is pulled, so that the whole cotton stalk is pulled without being buried in the soil or not in the row, thereby improving the efficiency of the whole cotton stalk pulling and improving the effect of the whole cotton stalk pulling.

Description

Technical Field

[0001] The present invention relates to the technical field of cotton stalk pulling devices, and particularly relates to an arc plate fitting cotton stalk pulling device and a pulling method. Background Art

[0002] At present, the harvesting methods of cotton stalks are still manual pulling and manual cutting. Manual pulling has low efficiency, takes a long time, and has extremely high labor costs. Manual cutting only cuts the above-ground part, and the cotton stalk roots will remain underground, resulting in the breeding of parasites and bacteria, and finally leading to a significant reduction in cotton yield in the next year. In addition, under dry and cold climate conditions, directly chopping cotton stalks and returning them to the field is not easy to rot, and it will also affect the next sowing. The straw stacked after manual pulling or cutting is usually directly burned in the cotton field, resulting in extremely low utilization rate of cotton stalks, and the gases, dust, etc. generated by burning pose a great threat to air quality.

[0003] In the prior art, the cotton stalk pulling methods are divided into five types: shovel cutting type, knife roller type, pair roller type, sawtooth disc type, and flexible belt clamping type. Among them, the pulling methods of the shovel cutting type and the knife roller type are likely to leave the cotton stalk roots in the ground, leading to the spread of pests and diseases. For example, the spread of cotton verticillium wilt in cotton fields affects the cultivation in the next year. However, for the types of clamping and pulling cotton stalks such as the pair roller type, the sawtooth disc type, and the flexible belt clamping type, due to the large hardness of cotton stalks and the ultra-narrow row planting mode, when pulling cotton stalks, the planting density of cotton straw in the narrow row is large, the pulling area on the cotton stalks is small, and the clamping force is large, which is likely to break the cotton stalks, resulting in a low pulling rate and the problem of incomplete cotton stalk pulling.

[0004] After retrieval, a cotton stalk harvesting and baling machine is disclosed in Chinese patent document CN2682794Y. The baling machine includes a frame, traveling wheels, a power access mechanism, and a transmission mechanism. A root cutting shovel is arranged below the front part of the frame. A stalk pulling mechanism, a conveying mechanism, and a baling mechanism are sequentially arranged on the frame. The structure of this baling machine is simple. When used in cooperation with a tractor, it can perform combined operations to complete shoveling, pulling, and baling at one time, which is convenient for recycling cotton stalks and the transportation and storage of cotton stalks. However, when this device works, it needs to enter the soil by 1 - 2 cm, which has a great effect on soil excavation, consumes a lot of energy. At the same time, the reaction force of the soil on the tool is also very large, greatly shortening the service life of the tool. The tool with serious wear has greater resistance, higher energy consumption, and significantly reduced stalk pulling effect.

[0005] For another example, Chinese patent document CN111869411A discloses a double-row cotton stalk pulling device with a clamp. The pulling device includes a frame, a left chain transmission mechanism, a right chain transmission mechanism, and an intermediate chain transmission mechanism. A left attached plate is installed on each outer chain plate of the left chain transmission mechanism. A right attached plate is installed on each outer chain plate of the right chain transmission mechanism. An intermediate attached plate is installed on each outer chain plate of the intermediate chain transmission mechanism. The left attached plate and the right attached plate correspond to the position and movement speed of the intermediate attached plate, respectively. A left strip-shaped gap for pulling out cotton stalks is formed between the left attached plate and the intermediate attached plate. A right strip-shaped gap for pulling out cotton stalks is formed between the right attached plate and the intermediate attached plate. The spacing between the left and right strip-shaped gaps matches the distance between the two rows of cotton stalks.

[0006] Although the above-mentioned pulling out device can reduce the bending or shearing force on the cotton stalks by adjusting the moving speed, thereby avoiding the cotton stalks from being pulled out, when used in the field, only two rows of cotton stalks can be pulled out at a time, and the strip gaps need to be designed accordingly according to the row spacing of the cotton stalks, making it difficult to recover the entire cotton stalk without burying it in the soil or misaligning it with the rows. In addition, the cotton stalks are prone to deflection during the recovery process, making it difficult to meet the needs of large-scale mechanized operations in cotton fields.

[0007] To sum up, in the process of cotton stalk recycling, how to design a pulling device to improve the efficiency of pulling out the whole cotton stalk without entering the soil or going to the row, and improve the effect of pulling out the whole cotton stalk, has become a technical problem that needs to be solved urgently by technical personnel in this field. Summary of the invention

[0008] The purpose of the present invention is to provide a pulling device in the process of cotton stalk recovery, so as to improve the efficiency of pulling out the whole cotton stalk without burying it in the soil or going to the row, and enhance the effect of pulling out the whole cotton stalk.

[0009] To achieve the above object, the present invention adopts the following scheme: an arc plate laminating cotton stalk extraction device is proposed, comprising a transmission box, a frame, a feeding mechanism and an extraction mechanism;

[0010] The transmission box is located at the head end of the frame, the bottom of the transmission box is connected to the frame, the input end of the transmission box is connected to the traction power device, the output end of the transmission box is connected to the transmission shaft, and the end of the transmission shaft is provided with a driving sprocket;

[0011] The front end of the frame is provided with a connecting frame connected to the traction power equipment, the rear end of the frame is provided with a running wheel, a pair of running wheels are symmetrically distributed along the center line of the frame, and one side of the frame is provided with a double-row sprocket, a first driven sprocket and a second driven sprocket in sequence along the direction from the front end of the frame to the rear end of the frame;

[0012] The feeding mechanism includes a first roller, a pressing plate and a support rod. The end of the first roller is connected to the frame through a bearing seat. The double-row sprocket is connected to one end of the first roller. The pressing plate is connected to the side wall of the first roller through the support rod. The driving sprocket is connected to the first row of teeth of the double-row sprocket through a first transmission chain;

[0013] The pulling-out mechanism includes a second roller. The end of the second roller is connected to the frame through a bearing seat. The first driven sprocket is connected to one end of the second roller. The second driven sprocket is connected to the frame through a bearing seat. The second row of teeth of the double-row sprocket is connected to the second driven sprocket through a second transmission chain. The first driven sprocket meshes with the second transmission chain. A pulling-out channel for clamping cotton stalks is formed between the pressing plate and the side wall of the second roller.

[0014] Preferably, a connecting shaft is provided at the end of the first roller. The connecting shaft is connected to the frame through a bearing seat, and the double-row sprocket is connected to the connecting shaft. With this arrangement, it is convenient for the assembly of the double-row sprocket and the first roller, which is beneficial to improving the transmission efficiency of power and further enhancing the smoothness of the rotation of the first roller.

[0015] Preferably, an end plate is provided at the end of the second roller. A roller shaft is provided on the end plate. The roller shaft is connected to the frame through a bearing seat, and the first driven sprocket is connected to the roller shaft. With this arrangement, it is convenient for the assembly of the first driven sprocket and the second roller, which is beneficial to improving the installation position accuracy of the second roller, ensuring the dimensional accuracy of the pulling-out channel, and further beneficial to applying a uniform clamping force to the cotton stalks in the pulling-out channel by the pressing plate and the second roller, avoiding the situation of cotton stalks being clamped off or missed during the process of pulling out cotton stalks.

[0016] Preferably, the pressing plates are arranged axially along the first roller to form feeding units, and the feeding units are arranged circularly along the axis of the first roller. With this arrangement, it is convenient to adaptively design the arrangement structure of the pressing plates according to the actual planting spacing of cotton stalks in the cotton field, which is beneficial to making the pulling-out device more suitable for the non-row planting mode in the cotton field and further enhancing the effect of pulling out the whole cotton stalk.

[0017] Preferably, teeth are provided between adjacent feeding units. One end of each tooth is connected to the side wall of the first roller. The teeth are arranged at equal intervals along the axis of the first roller, and an adjustment channel for combing the cotton stalks is formed between adjacent teeth. With this arrangement, the teeth are used to further comb and arrange the cotton stalks during the process of the feeding mechanism winding in the cotton stalks, which is beneficial to the pulling out of the cotton stalks and further enhances the effect of pulling out the whole cotton stalk.

[0018] Preferably, a coupling is provided between the output end of the transmission box and the transmission shaft, one end of the coupling is connected to the output end of the transmission box, and the other end of the coupling is connected to the transmission shaft. In this way, the coupling is used to facilitate the assembly between the transmission shaft and the transmission box, which is beneficial to power transmission and improves transmission accuracy.

[0019] Preferably, a side plate is provided between the walking wheel and the frame, the side plate is connected to the frame through a bearing seat, one end of the side plate is connected to the wheel axle of the walking wheel, and a hydraulic rod is provided at the other end of the side plate, the fixed end of the hydraulic rod is connected to the frame, and the telescopic end of the hydraulic rod is connected to the side plate. With such a configuration, by controlling the telescopic amount of the hydraulic rod and driving the rotation angle of the side plate, the height between the bottom of the frame and the ground can be adjusted, which is conducive to better support of the walking wheel on the frame and improves the stability of the pulling device during the cotton stalk pulling process.

[0020] The present invention also provides a cotton stalk extraction method using the arc plate-bonded cotton stalk extraction device, comprising:

[0021] Step 1: Connect the connecting frame at the head end of the frame to the traction power device, connect the power output end of the traction power device to the input end of the transmission box, start the traction power device, and the traction power device pulls the frame with the walking wheels into the cotton field, and transmits the power to the feeding mechanism and the pulling mechanism respectively;

[0022] Step 2: The transmission shaft drives the first roller in the feeding mechanism and the second roller in the pulling mechanism to rotate through the first transmission chain and the second transmission chain respectively, and the cotton stalks are rolled into the pulling channel formed between the pressing plate and the second roller. The pressing plate and the second roller apply a clamping force to the cotton stalks, so that the cotton stalks move together with the traction power equipment, thereby implementing the pulling of the cotton stalks;

[0023] Step 3: The plucked cotton stalks are further separated from the extraction channel as the second roller rotates, and fall into the cotton field to wait for subsequent collection operations.

[0024] Compared with the prior art, the arc plate fitted cotton stalk pulling device and pulling method provided by the present invention have the following outstanding substantial features and significant improvements: the arc plate fitted cotton stalk pulling device utilizes a transmission box to sequentially transmit power to the first roller of the feeding mechanism and the second roller of the pulling mechanism via the driving sprocket, the first transmission chain, the double-row sprocket, the second transmission chain, the second driven sprocket and the first driven sprocket, respectively, and the cotton stalks are rolled into the pulling channel formed between the pressing plate and the second roller, and the pressing plate and the second roller apply a clamping force to the cotton stalks, so that the cotton stalks move together with the traction power equipment, and then the cotton stalks are pulled, thereby realizing the whole-plant pulling of the cotton stalks without burying them in the soil and not aligning with the rows, thereby improving the efficiency of the whole-plant pulling of the cotton stalks and enhancing the effect of the whole-plant pulling of the cotton stalks. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of an arc plate laminating cotton stalk extraction device according to an embodiment of the present invention;

[0026] Figure 2 yes Figure 1 A top view of

[0027] Figure 3 It is a structural diagram of the feeding mechanism;

[0028] Figure 4 It is a three-dimensional structural schematic diagram of the pulling mechanism;

[0029] Figure 5 It is a reference diagram of the usage status of the feeding mechanism and the pulling mechanism for pulling out cotton stalks.

[0030] Figure numerals: 1. transmission box; 2. coupling; 3. transmission shaft; 4. frame; 5. driving sprocket; 6. feeding mechanism; 7. double-row sprocket; 8. pulling mechanism; 9. first driven sprocket; 10. second driven sprocket; 11. hydraulic rod; 12. walking wheel; 13. side plate; 61. first roller; 62. connecting shaft; 63. shifting gear; 64. pressure plate; 65. support rod; 81. roller shaft; 82. second roller; 83. end plate. DETAILED DESCRIPTION

[0031] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0032] like Figures 1-5 The arc plate-fitted cotton stalk extraction device shown is used to extract the whole cotton stalk without burying it in the soil or not aligning it with the row during the cotton stalk recovery process. The extraction device uses a transmission box to transmit power to the first roller of the feeding mechanism and the second roller of the pulling mechanism respectively through the driving sprocket, the first transmission chain, the double-row sprocket, the second transmission chain, the second driven sprocket and the first driven sprocket. The cotton stalk is rolled into the pulling channel formed between the pressing plate and the second roller. The pressing plate and the second roller apply a clamping force to the cotton stalk, so that the cotton stalk moves with the traction power equipment, and then the cotton stalk is extracted, which realizes the extraction of the whole cotton stalk without burying it in the soil or not aligning it with the row, improves the efficiency of the whole cotton stalk extraction, and enhances the effect of the whole cotton stalk extraction.

[0033] like Figure 1 As shown, an arc plate laminating cotton stalk extraction device comprises a transmission box 1, a frame 4, a feeding mechanism 6 and an extraction mechanism 8. Figure 2As shown, the transmission box 1 is located at the head end of the frame 4. The bottom of the transmission box 1 is connected to the frame 4. The input end of the transmission box 1 is connected to the traction power device. The output end of the transmission box 1 is connected to a transmission shaft 3. The end of the transmission shaft 3 is provided with a driving sprocket 5. For example, the transmission box 1 is a gear transmission box. The traction power device is an agricultural tractor.

[0034] like Figure 1 As shown, a connecting frame connected to the traction power device is provided at the head end of the frame 4. A running wheel 12 is provided at the tail end of the frame 4. A pair of running wheels 12 are symmetrically distributed along the center line of the frame 4. A double-row sprocket 7, a first driven sprocket 9 and a second driven sprocket 10 are sequentially provided on one side of the frame 4 along the direction from the head end of the frame 4 to the tail end of the frame 4.

[0035] like Figure 3 As shown, the feeding mechanism 6 includes a first roller 61, a pressure plate 64 and a support rod 65. The end of the first roller 61 is connected to the frame 4 through a bearing seat. The double-row sprocket 7 is connected to one end of the first roller 61. The pressure plate 64 is connected to the side wall of the first roller 61 through the support rod 65. The driving sprocket 5 is connected to the first row of gear teeth of the double-row sprocket 7 through the first transmission chain.

[0036] like Figure 4 As shown, the pulling mechanism 8 includes a second roller 82. Figure 1 As shown, the end of the second roller 82 is connected to the frame 4 through a bearing seat. The first driven sprocket 9 is connected to one end of the second roller 82. The second driven sprocket 10 is connected to the frame 4 through a bearing seat. The second row of teeth of the double-row sprocket 7 is connected to the second driven sprocket 10 through a second transmission chain. The first driven sprocket 9 is meshed with the second transmission chain. A cotton stalk extraction channel is formed between the pressing plate 64 and the side wall of the second roller 82.

[0037] The transmission box 1 transmits the power of the traction power device to the first roller 61 of the feeding mechanism 6 and the second roller 82 of the pulling mechanism 8 respectively through the driving sprocket 5, the first transmission chain, the double-row sprocket 7, the second transmission chain, the second driven sprocket 10 and the first driven sprocket 9. Figure 5 As shown, the cotton stalks are rolled into the pulling channel formed between the pressing plate 64 and the second roller 82. The pressing plate 64 and the second roller 82 apply a clamping force to the cotton stalks, so that the cotton stalks move together with the traction power equipment, and then the cotton stalks are pulled out, thereby realizing the pulling out of the whole cotton stalk without burying it in the soil or aligning it with the row, thereby improving the efficiency of pulling out the whole cotton stalks and enhancing the effect of pulling out the whole cotton stalks.

[0038] like Figure 2As shown in the figure, a coupling 2 is provided between the output end of the transmission case 1 and the transmission shaft 3. One end of the coupling 2 is connected to the output end of the transmission case 1, and the other end of the coupling 2 is connected to the transmission shaft 3. With this arrangement, the coupling 2 facilitates the assembly between the transmission shaft 3 and the transmission case 1, is conducive to power transmission, and improves the transmission accuracy. For example, the coupling 2 is selected as a universal coupling to further facilitate the assembly between the transmission shaft 3 and the transmission case 1.

[0039] As Figure 1 shown in the figure, a side plate 13 is provided between the traveling wheel 12 and the frame 4. The side plate 13 is connected to the frame 4 through a bearing block. One end of the side plate 13 is connected to the axle of the traveling wheel 12, and a hydraulic rod 11 is provided at the other end of the side plate 13. The fixed end of the hydraulic rod 11 is connected to the frame 4, and the telescopic end of the hydraulic rod 11 is connected to the side plate 13. With this arrangement, by controlling the telescopic amount of the hydraulic rod 11, the rotation angle of the side plate 13 is driven, and the height between the bottom of the frame 4 and the ground is adjusted, which is conducive to the traveling wheel 12 forming a better support for the frame 4 and improves the stability of the pulling device during the cotton stalk pulling process.

[0040] As Figure 3 shown in the figure, a connecting shaft 62 is provided at the end of the first roller 61. The connecting shaft 62 is connected to the frame 4 through a bearing block, and a double-row sprocket 7 is connected to the connecting shaft 62. With this arrangement, it is convenient for the assembly of the double-row sprocket 7 and the first roller 61, is conducive to improving the transmission efficiency of power, and further improves the stability of the rotation of the first roller 61.

[0041] To further improve the effect of the pulling device on the whole-plant pulling of cotton stalks, as Figure 3 shown in the figure, pressing plates 64 are arranged along the axial direction of the first roller 61 to form a feeding unit. The feeding unit is arranged in a circular shape along the axis of the first roller 61. With this arrangement, it is convenient to adaptively design the arrangement structure of the pressing plates 64 according to the actual planting spacing of cotton stalks in the cotton field, which is conducive to the pulling device being more suitable for the non-row planting mode in the cotton field and further improves the effect of the whole-plant pulling of cotton stalks.

[0042] As Figure 5 shown in the figure, a tooth 63 is provided between adjacent feeding units. One end of the tooth 63 is connected to the side wall of the first roller 61, and the teeth 63 are arranged at equal intervals along the axial direction of the first roller 61. There is an adjustment channel for combing the cotton stalks between adjacent teeth 63. With this arrangement, the teeth 63 are used to further comb and arrange the cotton stalks during the process of the feeding mechanism 6 winding in the cotton stalks, which is conducive to the pulling of the cotton stalks and further improves the effect of the whole-plant pulling of cotton stalks.

[0043] As Figure 4 shown in the figure, an end plate 83 is provided at the end of the second roller 82, and a roller shaft 81 is provided on the end plate 83. Combining Figure 1As shown, the roller shaft 81 is connected to the frame 4 through a bearing seat. The first driven sprocket 9 is connected to the roller shaft 81. Such a configuration facilitates the assembly of the first driven sprocket 9 and the second roller 82, helps to improve the installation position accuracy of the second roller 82, ensures the dimensional accuracy of the extraction channel, and further helps the pressing plate 64 and the second roller 82 to apply a uniform clamping force to the cotton stalks in the extraction channel, and in the process of extracting the cotton stalks, avoids the situation where the cotton stalks are clamped off or missed.

[0044] When used, the arc plate-fitted cotton stalk extraction device provided in the embodiment of the present invention comprises the following steps:

[0045] Step 1: Connect the connecting frame at the head end of the frame 4 to the traction power device, connect the power output end of the traction power device to the input end of the transmission box 1, start the traction power device, and the traction power device pulls the frame 4 with the walking wheel 12 into the cotton field, and transmits the power to the feeding mechanism 6 and the pulling mechanism 8 respectively;

[0046] Step 2: The transmission shaft 3 drives the first roller 61 in the feeding mechanism 6 and the second roller 82 in the pulling mechanism 8 to rotate through the first transmission chain and the second transmission chain respectively, and the cotton stalks are rolled into the pulling channel formed between the pressing plate 64 and the second roller 82. The pressing plate 64 and the second roller 82 apply a clamping force to the cotton stalks, so that the cotton stalks move together with the traction power equipment, and then the cotton stalks are pulled out;

[0047] Step 3: The plucked cotton stalks are further separated from the extraction channel as the second roller 82 rotates, and fall into the cotton field to wait for subsequent collection operations.

[0048] An arc plate-fitted cotton stalk extraction device proposed in an embodiment of the present invention solves the problem of whole-plant recovery of cotton stalks without burying them in the soil and without aligning them with the rows. When the whole machine is in operation, the cotton stalks are clamped by the gap between the horizontal rows of teeth on the first roller, and then tilted backward at a certain angle to bring the cotton stalks into the pulling position. The feeding mechanism has the functions of feeding and auxiliary pulling, and has very good effects in both feeding the cotton stalks into the pulling channel and pulling out the cotton stalks. The side wall of the second roller of the pulling mechanism is coated with a patterned rubber layer. The cotton stalks are clamped by the extrusion between the patterned rubber layer coated on the second roller and the pressure plate, and the cotton stalks are pulled out with the traction of the traction power equipment. The arc plate-fitted cotton stalk extraction device has the characteristics of high pulling efficiency, efficient work, and stable operation.

[0049] The present invention is not limited to the specific technical solutions described in the above embodiments. In addition to the above embodiments, the present invention may also have other implementation modes. For those skilled in the art, any technical solutions formed by any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An arc plate fitting cotton stalk extraction device, characterized in that, It includes a transmission case, a frame, a feeding mechanism and a pulling-out mechanism; The transmission case is located at the head end of the frame. The bottom of the transmission case is connected to the frame. The input end of the transmission case is connected to a traction power device. A transmission shaft is connected to the output end of the transmission case, and a driving sprocket is arranged at the end of the transmission shaft; A connecting frame connected to the traction power device is arranged at the head end of the frame. A traveling wheel is arranged at the tail end of the frame. A pair of traveling wheels are symmetrically distributed along the center line of the frame. A double-row sprocket, a first driven sprocket and a second driven sprocket are sequentially arranged on one side of the frame along the direction from the head end to the tail end of the frame; The feeding mechanism includes a first roller, a pressing plate and a support rod. The end of the first roller is connected to the frame through a bearing seat. The double-row sprocket is connected to one end of the first roller. The pressing plate is connected to the side wall of the first roller through the support rod. The driving sprocket is connected to the first row of teeth of the double-row sprocket through a first transmission chain; The pulling-out mechanism includes a second roller. The end of the second roller is connected to the frame through a bearing seat. The first driven sprocket is connected to one end of the second roller. The second driven sprocket is connected to the frame through a bearing seat. The second row of teeth of the double-row sprocket is connected to the second driven sprocket through a second transmission chain. The first driven sprocket meshes with the second transmission chain. A pulling-out channel for clamping cotton stalks is formed between the pressing plate and the side wall of the second roller; Wherein, the cotton stalks are rolled into the pulling-out channel formed between the pressing plate and the second roller. The pressing plate and the second roller apply a clamping force to the cotton stalks, so that the cotton stalks move together with the traction power device, and then the pulling-out of the cotton stalks is implemented; The pressing plates are arranged along the axial direction of the first roller to form a feeding unit, and the feeding units are arranged in a circular shape along the axis of the first roller; Poking teeth are arranged between adjacent feeding units. One end of each poking tooth is connected to the side wall of the first roller. The poking teeth are arranged at equal intervals along the axial direction of the first roller, and an adjusting channel for combing the cotton stalks is formed between adjacent poking teeth.

2. The arc plate fitting cotton stalk extraction device according to claim 1, wherein, A connecting shaft is arranged at the end of the first roller. The connecting shaft is connected to the frame through a bearing seat, and the double-row sprocket is connected to the connecting shaft.

3. The arc plate fitting cotton stalk pulling device according to claim 1, characterized in that, An end plate is arranged at the end of the second roller. A roller shaft is arranged on the end plate. The roller shaft is connected to the frame through a bearing seat, and the first driven sprocket is connected to the roller shaft.

4. The arc plate fitting cotton stalk pulling device according to claim 1, characterized in that, A coupling is arranged between the output end of the transmission case and the transmission shaft. One end of the coupling is connected to the output end of the transmission case, and the other end of the coupling is connected to the transmission shaft.

5. The arc plate fitting cotton stalk extraction device according to claim 1, characterized in that, A side plate is arranged between the traveling wheel and the frame. The side plate is connected to the frame through a bearing seat. One end of the side plate is connected to the axle of the traveling wheel, and a hydraulic rod is arranged at the other end of the side plate. The fixed end of the hydraulic rod is connected to the frame, and the telescopic end of the hydraulic rod is connected to the side plate.

6. The extraction method of the arc plate fitting cotton stalk extraction device according to any one of claims 1-5, characterized in that It includes: Step 1: Connect the connecting frame at the head end of the frame to the traction power device, connect the power output end of the traction power device to the input end of the transmission case, start the traction power device, and the traction power device pulls the frame with traveling wheels into the cotton field and transmits the power to the feeding mechanism and the pulling-out mechanism respectively; Step 2: The transmission shaft drives the first roller in the feeding mechanism and the second roller in the pulling mechanism to rotate through the first transmission chain and the second transmission chain respectively, and the cotton stalks are rolled into the pulling channel formed between the pressing plate and the second roller. The pressing plate and the second roller apply a clamping force to the cotton stalks, so that the cotton stalks move together with the traction power equipment, thereby implementing the pulling of the cotton stalks; Step 3: The plucked cotton stalks are further separated from the extraction channel as the second roller rotates, and fall into the cotton field to wait for subsequent collection operations.

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