A cotton stalk pulling-residual film stripping-soil collecting and bundling combined operation device

Abstract

The application discloses a cotton stalk pulling-residual film pulling-dirt removing and strip collecting combined operation device, which comprises a traction frame (1), a machine frame (2), a gearbox (3), a boat-shaped sinking plate (4), a planing device (5), a pulling roller (6), a dirt removing and strip collecting device (7) and a walking wheel (8). The planing device (5) is arranged at the lower front of the machine frame (2), the pulling roller (6) is arranged at the upper front of the planing device (5), the gearbox (3) is arranged at the upper front of the machine frame (2), the boat-shaped sinking plate (4) is arranged at the lower front of the machine frame (2), the dirt removing and strip collecting device (7) is arranged at the rear of the machine frame (2), and the walking wheel (8) is arranged at the lower rear of the machine frame (2).

Description

Technical Field

[0001] This invention pertains to agricultural waste recycling machinery, specifically a combined cotton stalk pulling, residual film removal, soil removal, and strip collection device. It is an integrated device that combines cotton stalk pulling and residual film removal with soil removal and strip collection, suitable for the integrated operation of root-and-root removal of cotton stalks and residual film collection in cotton fields after cotton harvest. Background Technology

[0002] Traditional manual and mechanical recycling methods are inefficient and incomplete, resulting in the accumulation of large amounts of residual film fragments in the soil year after year. This severely damages soil structure, hinders water and nutrient transport, and directly affects seed germination and crop root growth, leading to reduced crop yields. Cotton stalks, rich in lignocellulose, especially the roots, have a higher degree of lignification and a calorific value of 14.5–19.2 MJ·kg⁻¹. -1 The concentration is close to that of the material (17.4~18.6 MJ·kg). -1 Compared to crop straw such as corn and wheat, it has a better foundation for fuel utilization.

[0003] Harvesting cotton stalks by uprooting them offers several benefits: First, cotton roots are the primary overwintering site for pathogens causing soil-borne diseases such as Verticillium wilt and Fusarium wilt. Removing the roots effectively breaks the disease transmission chain and reduces the incidence rate the following year. Second, cotton roots are highly lignified and degrade slowly; long-term full return to the field can lead to soil compaction and the production of autotoxic substances, affecting the growth of subsequent crops. Third, returning all cotton stalks to the field can affect sowing quality and reduce germination rates. Fourth, mixing cotton stalks with residual plastic film significantly increases the difficulty of recycling the film, resulting in a high impurity rate and low reuse value. Therefore, uprooting cotton stalks is a key step in promoting the scientific return of cotton stalks to the field or their off-field utilization, while also improving the efficiency of residual plastic film recycling.

[0004] Currently, while some progress has been made in the research and development of machinery for residual film recycling and cotton stalk harvesting, significant technical bottlenecks remain. Regarding residual film recycling, due to strong winds in the region, approximately 20 cm of the film on each side needs to be buried in the soil during mulching to prevent wind damage. This portion of the film adheres tightly to the soil after long-term compaction, and existing film-lifting equipment easily tears the film, resulting in residual film and hindering further improvements in recycling rates. As for whole-stalk harvesting of cotton, the technology for pulling cotton stalks up to the roots has not yet been mastered. Especially in cotton-growing areas, where soil compaction is severe, cotton roots are deeply and widely distributed, and inter-row compaction is high, the resistance to stalk pulling is significant. Existing stalk pullers suffer from high breakage rates, high missed-pulling rates, and unstable operational quality.

[0005] Addressing the shortcomings of existing cotton stalk harvesters and residual film recycling machines, which often operate independently with limited functionality and low efficiency, and each suffers from key technological deficiencies, this invention focuses on the two core challenges of controlling residual film pollution in cotton-growing areas and utilizing cotton stalks as resources. It innovatively develops a combined cotton stalk pulling, residual film removal, soil removal, and stalk collection device. This provides end-to-end equipment support for eliminating "white pollution" and increasing the added value of cotton stalks, thus contributing to the development of green agriculture. Summary of the Invention

[0006] The purpose of this invention is to provide a combined operation device for cotton stalk pulling, residual film pulling, soil removal and strip collection, which systematically solves the key problems of high cotton stalk breakage rate and low residual film recovery rate in the prior art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A cotton stalk pulling-residual film pulling, soil removal and strip collection combined operation device includes a traction frame (1), a frame (2), a gearbox (3), a boat-shaped sinking plate (4), a planing device (5), a pulling roller (6), a soil removal and strip collection device (7), and a traveling wheel (8). A planing device (5) is provided at the lower front of the frame (2), a pulling roller (6) is provided at the upper front of the planing device (5), the gearbox (3) is installed at the upper front of the frame (2), the boat-shaped sinking plate (4) is installed at the lower front of the frame (2), the soil removal and strip collection device (7) is installed at the rear of the frame (2), and the walking wheel (8) is installed at the lower rear of the frame (2). The slicing device (5) includes a slicing shaft (51) and a plurality of support plates spaced apart along its axial direction. The support plates include a first support plate (52), a second support plate (53), and a third support plate (54). A planer blade is fixed on the support plate. Along the axial direction of the slicing shaft (51), the support plates and their planers are arranged in the order of "first support plate (52) with long planer blade (55) - second support plate (53) with short planer blade (56) - third support plate (54) with long planer blade (55) - second support plate (53) with short planer blade (56) - third support plate (54) with long planer blade (55)", forming a long-short-long-short-long planer blade layout. The long planer blade (55) is used to cut cotton stalks and acts on cotton rows, while the short planer blade (56) is used to cut residual film between cotton rows and acts between two cotton rows. The drawing roller (6) includes a drawing shaft (61) and a drawing plate (62), the drawing plate (62) being evenly arranged circumferentially along the drawing shaft (61); The soil removal and collection device (7) includes a soil removal screen, a telescopic throwing roller (72), and a collection plate (73); the telescopic throwing roller (72) is located behind the soil removal screen; the collection plate (73) is located below and behind the telescopic throwing roller (72). The soil removal screen includes a conveyor belt (711), a steel roller (712), a drive shaft (713), drive teeth (714), and support pulleys (715). The conveyor belt (711) is arranged around the drive shaft (713), and the steel roller (712) is uniformly fixed on its outer surface. The steel roller has multiple teeth along the axial direction, and the teeth are perpendicular to the upper surface of the conveyor belt; the drive teeth (714) are fixedly installed on the drive shaft (713) and mesh with the steel roller (712); the support pulleys (715) are combined to form the running track of the conveyor belt (711). The telescopic throwing roller (72) includes an eccentric shaft (722), spring teeth, a roller wall (721), and side plates. The eccentric shaft (722) is fixedly installed on the two side plates, and its axis is offset from the rotation center of the roller wall (721). Multiple rows of spring tooth holes are opened on the roller wall (721) along the circumferential direction. The root of the spring tooth is fitted onto the eccentric shaft (722), and the tooth body extends out of the roller wall (721) through the spring tooth hole. The bar collecting plate (73) includes a bar collecting side plate (731) and a bar collecting bottom plate (732).

[0008] The cutting shaft rotates in the opposite direction, that is, the direction of rotation of the cutting shaft is opposite to the direction of rotation of the traveling wheel.

[0009] By rotating the cutting shaft in the opposite direction, the long cutting blade (55) and the short cutting blade (56) can throw the cotton stalks and residual film backwards to the soil removal and strip collection device (7) when cutting the cotton stalks and contacting the residual film.

[0010] As an improvement, the first support plate (52), the second support plate (53), the third support plate (54) are welded to the planing shaft (51); the long planer (55) and the short planer (56) are bolted to the corresponding support plates.

[0011] As an improvement, the lever plate (62) and the lever shaft (61) are connected by welding.

[0012] As an improvement, the steel roller (712) is riveted to the conveyor belt (711), and the steel roller (712) is welded to the gear teeth.

[0013] As an improvement, the bar plate (73) is formed by bolting together the bar side plate (731) and the bar bottom plate (732).

[0014] As an improvement, a first gear is provided at one end of the planing shaft (51), and a second gear that meshes with the first gear is provided at the corresponding end of the pulling shaft (61), so as to realize the power transmission from the planing shaft (51) to the pulling shaft (61).

[0015] As an improvement, the first output end of the gearbox (3) is connected to the planing shaft (51) via the first chain drive mechanism, and the second output end of the gearbox (3) is connected to the soil removal screen drive shaft (713) and the telescopic throwing roller (72) of the soil removal collection device (7) via the second chain drive mechanism.

[0016] As an improvement, the roller wall (722) is arranged parallel to the shaft of the eccentric shaft (722). The surface of the roller wall (722) is provided with a spring tooth hole. The eccentric shaft (722) is arranged inside the roller wall (722). The spring tooth is fixed on the eccentric shaft (722) and can extend out from the spring tooth hole provided on the surface of the roller wall (722). When the roller wall (721) rotates, the roller wall (721) drives the spring tooth and the eccentric shaft (722) to revolve. As the eccentricity changes, the spring tooth periodically extends and retracts in the spring tooth hole.

[0017] As an improvement, the long-short-long-short-long planer layout is adapted to the cotton planting pattern of one film and six rows, with the long planer (55) acting on the cotton row position and the short planer (56) acting on the inter-row position.

[0018] [Beneficial Effects] This invention has the following advantages: 1. In response to the problems that traditional residual film recycling devices cannot achieve edge film recycling and the low recovery rate of cotton stalk harvesting machinery, the designed cutting device (5) can improve the recovery rate of whole cotton stalks and residual film recycling rate to more than 95%. It integrates the functions of cotton stalk lifting and soil removal and residual film lifting and soil removal into a single device, completing two key operations at once, and greatly improving the efficiency of operation.

[0019] 2. In response to the current mainstream cotton planting mode of one film and six rows of dwarf dense planting, the innovative "long-short-long-short-long" planer layout design is adapted to the current mainstream "one film and six rows" planting mode, reducing the ineffective soil area and significantly reducing the working resistance of the soil-entry components in compacted soil (expected to be reduced by 20%-25%). The boat-shaped sinking plate (4) ensures the stability of the working depth.

[0020] 3. When the power-driven drum wall (721) rotates, the drum wall (721) drives the spring teeth and eccentric shaft (722) to revolve. As the eccentricity changes, the spring teeth periodically extend and retract within the spring tooth holes. When the spring teeth rotate to the side closer to the eccentric shaft (722), the length of the spring teeth extending out of the drum wall (721) is at its maximum, forcibly grabbing the cotton stalks and residual film falling from the end of the soil removal screen and throwing them backward; when the spring teeth rotate to the side farther from the eccentric shaft (722), the spring teeth retract into the drum wall (721), allowing the material to detach from the spring teeth under the action of centrifugal force and gravity and fall onto the collecting plate. The extension and retraction characteristics of the spring teeth can effectively prevent residual film from wrapping around the drum and ensure smooth throwing.

[0021] 4. The gap between the steel rollers (712) on the conveyor belt (711) allows the soil adhering to the cotton stalks and residual film to fall off. Combined with the design of the telescopic throwing roller (72), the soil content of the material is significantly reduced, and the value of subsequent resource utilization is improved.

[0022] 5. The stalk tray ensures that the cotton stalks are randomly interwoven and not arranged in a straight line within the strip. This solves the problem of the cotton stalks being arranged in a straight line in the traditional pulling method, which makes it difficult for the subsequent baling machine to pick them up effectively, thus creating the necessary conditions for mechanized baling and recycling. Attached Figure Description

[0023] Figure 1 These are isometric views of the cotton stalk pulling, residual film pulling, soil removal and strip collection combined operation device.

[0024] Figure 2 This is an isometric view of the upper and lower isometric views of the combined operation device for cotton stalk pulling, residual film pulling, soil removal and strip collection.

[0025] Figure 3 This is a schematic diagram of the planing device.

[0026] Figure 4 This is a schematic diagram of the pull-out device.

[0027] Figure 5 This is a schematic diagram of the soil removal and collection device.

[0028] Figure 6 These are the left and right isometric views of the soil removal and collection device.

[0029] Figure 7 This is a side view of a telescopic throwing roller.

[0030] 1. Traction frame; 2. Frame; 3. Gearbox; 4. Boat-shaped sinker plate; 5. Planing device; 6. Pulling roller; 7. Soil removal and strip collection device; 8. Traveling wheels; 51. Planing shaft; 52. First support plate; 53. Second support plate; 54. Third support plate; 55. Long planer blade; 56. Short planer blade; 61. Pulling shaft; 62. Pulling plate; 71. Soil removal screen; 72. Telescopic throwing roller; 73. Gathering bar plate; 711. Conveyor belt; 712. Steel roller; 713. Drive shaft; 714. Drive gear; 715. Support pulley; 721. Drum wall; 722. Eccentric shaft; 731. Slab side plate; 732. Slab bottom plate. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solutions in this disclosure, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this disclosure.

[0032] The present invention discloses a cotton stalk pulling-residual film pulling, soil removal and strip collection combined operation device, including a traction frame (1), a frame (2), a gearbox (3), a boat-shaped sinking plate (4), a planing device (5), a pulling roller (6), a soil removal and strip collection device (7), and a traveling wheel (8). A planing device (5) is provided at the lower front of the frame (2), a pulling roller (6) is provided at the upper front of the planing device (5), the gearbox (3) is installed at the upper front of the frame (2), the boat-shaped sinking plate (4) is installed at the lower front of the frame (2), the soil removal and strip collection device (7) is installed at the rear of the frame (2), and the walking wheel (8) is installed at the lower rear of the frame (2). The slicing device (5) includes a slicing shaft (51) and a plurality of support plates spaced apart along its axial direction. The support plates include a first support plate (52), a second support plate (53), and a third support plate (54). A planer blade is fixed on the support plate. Along the axial direction of the slicing shaft (51), the support plates and their planers are arranged in the order of "first support plate (52) with long planer blade (55) - second support plate (53) with short planer blade (56) - third support plate (54) with long planer blade (55) - second support plate (53) with short planer blade (56) - third support plate (54) with long planer blade (55)", forming a long-short-long-short-long planer blade layout. The long planer blade (55) is used to cut cotton stalks and acts on cotton rows, while the short planer blade (56) is used to cut residual film between cotton rows and acts between two cotton rows. The drawing roller (6) includes a drawing shaft (61) and a drawing plate (62), the drawing plate (62) being evenly arranged circumferentially along the drawing shaft (61); The soil removal and collection device (7) includes a soil removal screen, a telescopic throwing roller (72), and a collection plate (73); the telescopic throwing roller (72) is located behind the soil removal screen; the collection plate (73) is located below and behind the telescopic throwing roller (72). The soil removal screen includes a conveyor belt (711), a steel roller (712), a drive shaft (713), drive teeth (714), and support pulleys (715). The conveyor belt (711) is arranged around the drive shaft (713), and the steel roller (712) is uniformly fixed on its outer surface. The steel roller has multiple teeth along the axial direction, and the teeth are perpendicular to the upper surface of the conveyor belt; the drive teeth (714) are fixedly installed on the drive shaft (713) and mesh with the steel roller (712); the support pulleys (715) are combined to form the running track of the conveyor belt (711). The telescopic throwing roller (72) includes an eccentric shaft (722), spring teeth, a roller wall (721), and side plates. The eccentric shaft (722) is fixedly installed on the two side plates, and its axis is offset from the rotation center of the roller wall (721). Multiple rows of spring tooth holes are opened on the roller wall (721) along the circumferential direction. The root of the spring tooth is fitted onto the eccentric shaft (722), and the tooth body extends out of the roller wall (721) through the spring tooth hole. The bar collecting plate (73) includes a bar collecting side plate (731) and a bar collecting bottom plate (732).

[0033] As an improvement, the first support plate (52), the second support plate (53), the third support plate (54) are welded to the planing shaft (51); the long planer (55) and the short planer (56) are bolted to the corresponding support plates.

[0034] As an improvement, the lever plate (62) and the lever shaft (61) are connected by welding.

[0035] As an improvement, the steel roller (712) is riveted to the conveyor belt (711), and the steel roller (712) is welded to the gear teeth.

[0036] As an improvement, the bar plate (73) is formed by bolting together the bar side plate (731) and the bar bottom plate (732).

[0037] As an improvement, a first gear is provided at one end of the planing shaft (51), and a second gear that meshes with the first gear is provided at the corresponding end of the pulling shaft (61), so as to realize the power transmission from the planing shaft (51) to the pulling shaft (61).

[0038] As an improvement, the first output end of the gearbox (3) is connected to the planing shaft (51) via the first chain drive mechanism, and the second output end of the gearbox (3) is connected to the soil removal screen drive shaft (713) and the telescopic throwing roller (72) of the soil removal collection device (7) via the second chain drive mechanism.

[0039] As an improvement, the long-short-long-short-long planer layout is adapted to the cotton planting pattern of one film and six rows, with the long planer (55) acting on the cotton row position and the short planer (56) acting on the inter-row position.

[0040] As an improvement, the roller wall (722) is arranged parallel to the shaft of the eccentric shaft (722). The surface of the roller wall (722) is provided with a spring tooth hole. The eccentric shaft (722) is arranged inside the roller wall (722). The spring tooth is fixed on the eccentric shaft (722) and can extend out from the spring tooth hole provided on the surface of the roller wall (722). When the roller wall (721) rotates, the roller wall (721) drives the spring tooth and the eccentric shaft (722) to revolve. As the eccentricity changes, the spring tooth periodically extends and retracts in the spring tooth hole.

[0041] When the device starts working, the power is transmitted from the tractor's rear output shaft to the gearbox. After the gearbox reduces speed and increases torque, part of the power is transmitted to the planing device via chain drive. The planing shaft rotates at high speed, and the first, second, and third support plates drive the planing blades fixed by bolts to rotate synchronously. The long planing blades cut into the soil and act directly on the roots of the cotton stalks, while the short planing blades act on the residual film between the two cotton rows, thereby throwing the cotton stalks up along with the roots and taking the residual film with them. A pair of gears mesh with each other on one side of the pulling shaft and the other side of the planing shaft, driving the pulling shaft to rotate at high speed, pulling the cotton stalks backward and pushing them to the soil removal and strip collection device. Another part of the power is transmitted via chain drive to the soil removal screen drive shaft and the telescopic throwing roller (72). The soil removal screen drive shaft rotates at high speed, and the drive teeth rotate with the drive shaft. The drive teeth mesh with the steel roller, driving the conveyor belt to move upward and conveying the cotton stalks and residual film upward. The steel roller has several teeth welded along the axial direction. The teeth are perpendicular to the upper surface of the conveyor belt and have a tooth height of 30 mm. During the conveying process, the teeth move synchronously with the steel rollers and insert between the cotton stalks to prevent them from slipping and rolling off the inclined conveying surface, thus forcibly pushing the material upwards. A gap is left between adjacent steel rollers, and the soil adhering to the cotton roots and residual film during the conveying process falls through the gap. After the cotton stalks and residual film are conveyed to the upper end of the drive shaft, they are thrown backwards by the telescopic throwing roller (72). During the throwing process, the residual soil falls from the gap between the telescopic throwing roller (72) and the soil removal screen, further reducing the soil content of the aggregated material. After being thrown away by the telescopic throwing roller (72), the cotton stalks and residual film fall into the aggregated plate area with a relatively high initial velocity. The aggregated plate consists of aggregated side plates and aggregated bottom plates. The aggregated side plates are symmetrically arranged on both sides of the frame, forming a funnel shape that is wider at the top and narrower at the bottom. The aggregated bottom plate is inclined, with its end extending to near the ground. When the material falls into the slab, it is first guided and constrained laterally by the slab side plates, and the material flow is gathered within the width range of the slab bottom plate. Then, the material slides down the inclined surface of the slab bottom plate and falls continuously to the ground, naturally accumulating in the forward direction of the device to form a horizontally laid strip. The cotton stalks are randomly interwoven and not arranged in a straight line within the strip, which facilitates the subsequent picking operation by the baler.

Claims

1. A combined operation device for cotton stalk pulling, residual film pulling, soil removal, and stalk collection, comprising a frame (2), characterized in that, The frame (2) is equipped with at least a planing device (5), a pulling roller (6), a soil removal and strip collection device (7), and a traveling wheel (8); The slicing device (5) includes a slicing shaft (51) and multiple support plates spaced apart along its axial direction. The support plates include a first support plate (52), a second support plate (53), and a third support plate (54). A planer blade is fixed on the support plate. Along the axial direction of the slicing shaft (51), the support plates and their planers are arranged in the order of "first support plate (52) with long planer blade (55) - second support plate (53) with short planer blade (56) - third support plate (54) with long planer blade (55) - second support plate (53) with short planer blade (56) - third support plate (54) with long planer blade (55)", forming a long-short-long-short-long planer blade layout. The long planer blade (55) is used to cut cotton stalks and acts on cotton rows, while the short planer blade (56) is used to cut residual film between cotton rows and acts between two cotton rows. The pull roller (6) includes a pull shaft (61) and a pull plate (62), and the pull plate (62) is evenly arranged circumferentially along the pull shaft (61); The soil removal and strip collection device (7) includes a soil removal screen, a telescopic throwing roller (72), and a strip collection plate (73); the telescopic throwing roller (72) is located behind the soil removal screen; the strip collection plate (73) is located below and behind the telescopic throwing roller (72). The soil removal screen includes a conveyor belt (711), steel rollers (712), a drive shaft (713), drive teeth (714), and support pulleys (715). The conveyor belt (711) is arranged around the drive shaft (713), and the steel rollers (712) are uniformly fixed on its outer surface. The steel rollers are provided with multiple teeth along the axial direction, and the teeth are perpendicular to the upper surface of the conveyor belt. The drive teeth (714) are fixedly installed on the drive shaft (713) and mesh with the steel rollers (712). The support pulleys (715) are combined to form the running track of the conveyor belt (711). The telescopic throwing roller (72) includes an eccentric shaft (722), spring teeth, a roller wall (721), and side plates. The eccentric shaft (722) is fixedly installed on the two side plates, and its axis is offset from the rotation center of the roller wall (721). Multiple rows of spring tooth holes are opened on the roller wall (721) along the circumferential direction. The root of the spring tooth is fitted onto the eccentric shaft (722), and the tooth body passes through the spring tooth hole and extends out of the roller wall (721). The bar plate (73) includes a bar side plate (731) and a bar bottom plate (732).

2. The cotton stalk pulling-residual film pulling, soil removal and strip collection combined operation device according to claim 1, characterized in that, The roller wall (722) is arranged parallel to the shaft of the eccentric shaft (722). The surface of the roller wall (722) is provided with a spring tooth hole. The eccentric shaft (722) is arranged inside the roller wall (722). The spring tooth is fixed on the eccentric shaft (722) and can extend out from the spring tooth hole provided on the surface of the roller wall (722). When the roller wall (721) rotates, the roller wall (721) drives the spring tooth and the eccentric shaft (722) to revolve. As the eccentricity changes, the spring tooth periodically extends and retracts in the spring tooth hole.

3. The cotton stalk pulling-residual film pulling, soil removal and strip collection combined operation device according to claim 1, characterized in that, The planing device (5) is located at the lower front of the frame (2), the planing device (5) is provided with the pulling roller (6) at the upper front of the planing device (5), the boat-shaped sinking plate (4) is installed at the lower front of the frame (2), the soil removal and strip collection device (7) is installed at the rear of the frame (2), and the walking wheel (8) is installed at the lower rear of the frame (2).

4. The cotton stalk pulling-residual film pulling, soil removal and strip collection combined operation device according to claim 1, characterized in that, The first support plate (52), the second support plate (53), the third support plate (54) are welded to the planing shaft (51); the long planer (55) and the short planer (56) are bolted to the corresponding support plates.

5. The cotton stalk pulling-residual film pulling, soil removal and strip collection combined operation device according to claim 1, characterized in that, The lever plate (62) and the lever shaft (61) are connected by welding.

6. The cotton stalk pulling-residual film pulling, soil removal and strip collection combined operation device according to claim 1, characterized in that, The steel roller (712) is riveted to the conveyor belt (711), and the steel roller (712) is welded to the gear teeth.

7. The cotton stalk pulling-residual film pulling, soil removal and strip collection combined operation device according to claim 1, characterized in that, The bar plate (73) is formed by bolting together the bar side plate (731) and the bar bottom plate (732).

8. The cotton stalk pulling-residual film pulling, soil removal and strip collection combined operation device according to claim 1, characterized in that, The planing shaft (51) is provided with a first gear at one end, and the corresponding end of the pulling shaft (61) is provided with a second gear that meshes with the first gear, so as to realize the power transmission from the planing shaft (51) to the pulling shaft (61).

9. The cotton stalk pulling-residual film pulling, soil removal and strip collection combined operation device according to claim 1, characterized in that, The first output end of the gearbox (3) is connected to the planing shaft (51) via the first chain drive mechanism, and the second output end of the gearbox (3) is connected to the soil removal screen drive shaft (713) and the telescopic throwing roller (72) of the soil removal and gathering device (7) via the second chain drive mechanism.

10. The cotton stalk pulling-residual film pulling, soil removal and strip collection combined operation device according to any one of the claims, characterized in that, The long-short-long-short-long planer layout is adapted to the cotton planting pattern of one film and six rows. The long planer (55) is applied to the cotton row position, and the short planer (56) is applied to the position between rows.

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