Disc type cotton stalk cutting device

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By designing a disc-type cotton stalk cutting device, which employs stacked disc cutting blades and a transmission system, the problems of low cutting efficiency and inconsistent specifications of cotton stalks are solved, achieving efficient and uniform cotton stalk cutting, adapting to complex terrain operations, and facilitating resource utilization.

CN224439721UActive Publication Date: 2026-07-03XINJIANG ACADEMY OF AGRI & RECLAMATION SCI +2

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: XINJIANG ACADEMY OF AGRI & RECLAMATION SCI
Filing Date: 2025-06-27
Publication Date: 2026-07-03

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Abstract

This utility model discloses a disc-type cotton stalk cutting device, including a frame, four stacked disc cutting blades, two conveying paddles, three dividers, and four fixed blade groups. The four stacked disc cutting blades are rotatably mounted on the open front side of the frame and arranged side-by-side with intervals. The two conveying paddles are rotatably mounted on both sides of the output channel on the rear side of the frame. The dividers are horizontally mounted on the frame and located between adjacent stacked disc cutting blades. The four fixed blade groups are horizontally fixed on the frame and located at the bottom of the four stacked disc cutting blades. A power source is connected to the four stacked disc cutting blades and the two conveying paddles via a transmission system mounted on the frame. This utility model can efficiently complete the cutting, improve work efficiency, and produce cotton stalks of uniform size after cutting, which is beneficial for subsequent resource utilization.

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Description

Technical Field

[0001] This utility model relates to the technical field of cotton stalk cutting devices, and more specifically to a disc-type cotton stalk cutting device. Background Technology

[0002] In the process of agricultural modernization, the efficient harvesting and utilization of cotton stalks is becoming increasingly important. As an important renewable biomass energy source, cotton stalks are finding wider applications in many industries as economic levels and industrial technologies improve, and their utilization value is becoming increasingly prominent.

[0003] The cutting process is crucial during cotton stalk harvesting. However, cotton stalk cutting currently still relies heavily on manual labor, which is not only inefficient but also results in poor cutting quality and inconsistent stalk sizes, hindering subsequent resource utilization.

[0004] Therefore, providing an efficient disc-type cotton stalk cutting device is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the present invention provides a disc-type cotton stalk cutting device to at least solve one of the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A disc-type cotton stalk cutting device includes a frame, four stacked disc cutting blades, two conveying blades, three dividers, and four fixed blade groups. The four stacked disc cutting blades are rotatably mounted on the open front side of the frame and arranged side-by-side with intervals. The two conveying blades are rotatably mounted on both sides of the output channel on the rear side of the frame. The dividers are horizontally mounted on the frame and located between two adjacent stacked disc cutting blades. The four fixed blade groups are horizontally fixed on the frame and located at the bottom of the four stacked disc cutting blades. A power source is connected to the four stacked disc cutting blades and the two conveying blades via a transmission system mounted on the frame, such that the rotation directions of the four stacked disc cutting blades, arranged from left to right, are counterclockwise, clockwise, counterclockwise, and clockwise, respectively, and the rotation directions of the two conveying blades, arranged from left to right, are counterclockwise and clockwise, respectively.

[0008] By adopting the above technical solutions, the beneficial effects of this utility model are as follows:

[0009] The process of cutting cotton stalks is efficient, improving work efficiency and ensuring uniform specifications after cutting, which facilitates subsequent resource utilization.

[0010] Furthermore, it also includes two augers, which are horizontally fixed on the frame and located on both sides of the four stacked disc cutters.

[0011] The beneficial effect of adopting the above-mentioned further technical solution is that it effectively squeezes the cotton stalks into the working width of the cutting device, avoiding the leakage of cotton stalks after cutting.

[0012] Furthermore, each of the fixed-blade groups includes two fixed blades arranged side by side and spaced apart.

[0013] The beneficial effect of adopting the above-mentioned further technical solution is that it can prevent the roots of the cotton stalk from moving with the cotton stalk, and help the stacked disc cutting blades to complete the cutting operation on the roots of the cotton stalk.

[0014] Furthermore, the transmission system includes a driving bevel gear, two driven bevel gear transmission assemblies, two first chain transmission assemblies, two first bevel gear transmission assemblies, two second bevel gear transmission assemblies, two second chain transmission assemblies, two third bevel gear transmission assemblies, two fourth bevel gear transmission assemblies, two fifth bevel gear transmission assemblies, two sixth bevel gear transmission assemblies, and two seventh bevel gear transmission assemblies. The power source is connected to the driving bevel gear via an input shaft. The driven bevel gears of the two driven bevel gear transmission assemblies are located on both sides of the driving bevel gear and are meshed. The transmission shaft of the first bevel gear transmission assembly and the transmission shaft of the driven bevel gear transmission assembly are connected via the first chain transmission assembly. The bevel gear of the second bevel gear transmission assembly meshes with the bevel gear of the first bevel gear transmission assembly, and the transmission shaft of the second bevel gear transmission assembly is connected to the conveyor paddle. The drive shaft of the three-bevel gear transmission assembly is connected to the drive shaft of the driven bevel gear transmission assembly via the second chain transmission assembly; the bevel gear of the fourth bevel gear transmission assembly meshes with the bevel gear of the third bevel gear transmission assembly; the stacked disc cutter located on the outer side is connected to the drive shaft of the fourth bevel gear transmission assembly; the bevel gear of the fifth bevel gear transmission assembly meshes with the bevel gear of the fourth bevel gear transmission assembly, and the bevel gears of the fifth and third bevel gear transmission assemblies are located on both sides of the bevel gear of the fourth bevel gear transmission assembly; the drive shaft of the sixth bevel gear transmission assembly is fixedly connected to the drive shaft of the fifth bevel gear transmission assembly; the bevel gear of the seventh bevel gear transmission assembly meshes with the bevel gear of the sixth bevel gear transmission assembly; the stacked disc cutter located in the middle is connected to the drive shaft of the seventh bevel gear transmission assembly.

[0015] Furthermore, each of the stacked disc cutters includes a first disc cutter blade, a second disc cutter blade, a third disc cutter blade, a fourth disc cutter blade, and a first connecting shaft. The first disc cutter blade, the second disc cutter blade, the third disc cutter blade, and the fourth disc cutter blade, which are distributed from top to bottom, are connected together by the first connecting shaft. The two ends of the first connecting shaft are rotatably connected to the frame. The cutting teeth of the first disc cutter blade, the second disc cutter blade, the third disc cutter blade, and the fourth disc cutter blade are straight saw teeth, oblique saw teeth, arc teeth, and stepped teeth, respectively.

[0016] Furthermore, each of the conveying paddles includes two first serrated paddles, three second serrated paddles, two arc-shaped toothed paddles, and a second connecting shaft. The two first serrated paddles, three second serrated paddles, and two arc-shaped toothed paddles are distributed sequentially from top to bottom and connected as a whole by the second connecting shaft. The two ends of the second connecting shaft are rotatably connected to the frame. The size of the second serrated paddle is larger than the size of the first serrated paddle.

[0017] Therefore, this utility model provides a disc-type cotton stalk cutting device, which has the following advantages compared with the prior art:

[0018] 1) Compact and convenient, capable of handling operations in various complex terrains;

[0019] 2) The combination of four sets of stacked disc cutting blades and fixed blades results in smoother cuts on the cotton stalks and a lower rate of missed cuts after operation;

[0020] 3) The conveyor blades collect the cut cotton stalks and discharge them from the conveyor blades, which serves as a collection tool to facilitate subsequent crushing, baling and collection of the cotton stalks by other machinery. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 The attached figure is a structural schematic diagram of a disc-type cotton stalk cutting device provided by this utility model;

[0023] Figure 2 The attached figure is a structural schematic diagram of the stacked disc cutting blade provided by this utility model;

[0024] Figure 3 The attached figure is a schematic diagram of the structure of the conveyor lever provided by this utility model;

[0025] Figure 4 The attached figure is a structural schematic diagram of the transmission system provided by this utility model. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figure 1-4 As shown in the figure, this utility model embodiment discloses a disc-type cotton stalk cutting device, including a frame 1, four stacked disc cutting blades 2, two conveying paddles 3, three dividers 4, and four fixed blade groups 5. The four stacked disc cutting blades 2 are rotatably mounted on the open front side of the frame 1 and arranged side by side with intervals. The two conveying paddles 3 are respectively rotatably mounted on both sides of the output channel on the rear side of the frame 1. The dividers 4 are horizontally mounted on the frame 1 and located between two adjacent stacked disc cutting blades 2. The four fixed blade groups 5 are all horizontally fixed on the frame 1 and are respectively located at the bottom of the four stacked disc cutting blades 2. The power source is connected to the four stacked disc cutting blades 2 and the two conveying paddles 3 through a transmission system 6 mounted on the frame 1, so that the rotation directions of the four stacked disc cutting blades 2 distributed from left to right are counterclockwise, clockwise, counterclockwise, and clockwise, respectively, and the rotation directions of the two conveying paddles 3 distributed from left to right are counterclockwise and clockwise, respectively. This invention efficiently completes the cutting process, improves work efficiency, and ensures that the cut cotton stalks are of uniform size, which is beneficial for subsequent resource utilization.

[0028] To further optimize the technical solution of this utility model, it also includes two augers 7 for supporting the cotton stalks. The two augers 7 are horizontally fixed on the frame 1 and located on both sides of the four stacked disc cutting blades 2, so as to effectively squeeze the cotton stalks into the working width of the cutting device and avoid the cotton stalks being missed after cutting.

[0029] Specifically, each fixed blade group 5 includes two fixed blades arranged side by side and spaced apart. This prevents the root of the cotton stalk from moving with the cotton stalk, helping the stacked disc cutting blades 2 to complete the cutting operation on the root of the cotton stalk.

[0030] Specifically, the transmission system 6 includes a driving bevel gear 61, two driven bevel gear transmission assemblies 62, two first chain transmission assemblies 63, two first bevel gear transmission assemblies 64, two second bevel gear transmission assemblies 65, two second chain transmission assemblies 66, two third bevel gear transmission assemblies 67, two fourth bevel gear transmission assemblies 68, two fifth bevel gear transmission assemblies 69, two sixth bevel gear transmission assemblies 610, and two seventh bevel gear transmission assemblies 611. The power source is connected to the driving bevel gear 61 via an input shaft 612. In this embodiment, the power source is an electric motor. The driven bevel gears of the two driven bevel gear transmission assemblies 62 are located on both sides of the driving bevel gear 61 and are meshed. The transmission shaft of the first bevel gear transmission assembly 64 is connected to the transmission shaft of the driven bevel gear transmission assembly 62 via a first chain transmission assembly 63. The bevel gears of the second bevel gear transmission assembly 65 are meshed with the bevel gears of the first bevel gear transmission assembly 64. The drive shaft of 65 is connected to the conveyor paddle 3; the drive shaft of the third bevel gear drive assembly 67 is connected to the drive shaft of the driven bevel gear drive assembly 62 via the second chain drive assembly 66; the bevel gear of the fourth bevel gear drive assembly 68 meshes with the bevel gear of the third bevel gear drive assembly 67; the stacked disc cutter 2 located on the outer side is connected to the drive shaft of the fourth bevel gear drive assembly 68; the bevel gear of the fifth bevel gear drive assembly 69 meshes with the bevel gear of the fourth bevel gear drive assembly 68, and the bevel gears of the fifth bevel gear drive assembly 69 and the third bevel gear drive assembly 67 are located on both sides of the bevel gear of the fourth bevel gear drive assembly 68; the drive shaft of the sixth bevel gear drive assembly 610 is fixedly connected to the drive shaft of the fifth bevel gear drive assembly 69; the bevel gear of the seventh bevel gear drive assembly 611 meshes with the bevel gear of the sixth bevel gear drive assembly 610; the stacked disc cutter 2 located in the middle is connected to the drive shaft of the seventh bevel gear drive assembly 611.

[0031] Each drive shaft is rotatably connected to the frame 1 to support the entire transmission system 6.

[0032] The first chain drive assembly 63 and the second chain drive assembly 66 have the same structure, both including a driving sprocket, a driven sprocket and a chain, with the driving sprocket and the driven sprocket connected by chain drive.

[0033] Specifically, each stacked disc cutter 2 includes a first disc cutting blade 21, a second disc cutting blade 22, a third disc cutting blade 23, a fourth disc cutting blade 24, and a first connecting shaft 25. These blades, arranged sequentially from top to bottom, are connected together via the first connecting shaft 25. Both ends of the first connecting shaft 25 are rotatably connected to the frame 1. The cutting teeth of the first disc cutting blade 21, second disc cutting blade 22, third disc cutting blade 23, and fourth disc cutting blade 24 are respectively straight saw teeth, oblique saw teeth, arc-shaped teeth, and stepped teeth. During cutting operations, the four layers of disc cutting blades provide support and fixation for the cotton stalks, ensuring a large contact area between the cotton stalks and the blades, keeping the cotton stalks vertical for a longer period, guaranteeing smooth cutting and a clean cut.

[0034] Specifically, each conveyor plate 3 includes two first serrated plates 31, three second serrated plates 32, two arc-shaped toothed plates 33, and a second connecting shaft 34. The two first serrated plates 31, three second serrated plates 32, and two arc-shaped toothed plates 33 are distributed sequentially from top to bottom and connected as a whole by the second connecting shaft 34. The two ends of the second connecting shaft 34 are rotatably connected to the frame 1. The size of the second serrated plates 32 is larger than that of the first serrated plates 31. The conveyor plates rotate from the outside to the inside. During operation, the cut cotton stalks are collected and concentrated towards the center and discharged along the discharge port in the middle of the rear side of the device. This reduces the congestion of cotton stalks in the device and prevents it from blocking normal operation. The collected cotton stalks will be further processed by picking up, crushing, collecting, and bundling, facilitating subsequent processing of the cotton stalks.

[0035] The working process of this utility model:

[0036] As the process proceeds, a row of cotton stalks is placed between every two dividers 4. Two stacked disc cutters 2 on both sides push the cotton stalks from the sides toward the middle, while two stacked disc cutters 2 in the middle push the cotton stalks from the middle to both sides, cutting the cotton stalks into small segments of relatively uniform size. Finally, two conveyor blades 3 transport the cut cotton stalks together.

[0037] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0038] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A disc type cotton stalk cutting device, characterized in that, The device includes a frame, four stacked disc cutters, two conveyor blades, three dividers, and four fixed blade groups. The four stacked disc cutters are rotatably mounted on the open front side of the frame and arranged side-by-side with intervals. The two conveyor blades are rotatably mounted on both sides of the output channel on the rear side of the frame. The dividers are horizontally mounted on the frame and located between two adjacent stacked disc cutters. The four fixed blade groups are horizontally fixed on the frame and located at the bottom of the four stacked disc cutters. A power source is connected to the four stacked disc cutters and the two conveyor blades via a transmission system mounted on the frame, such that the four stacked disc cutters, arranged from left to right, rotate counterclockwise, clockwise, counterclockwise, and clockwise, respectively, and the two conveyor blades, arranged from left to right, rotate counterclockwise and clockwise, respectively.

2. A disc type cotton stalk cutting device according to claim 1, characterized in that, It also includes two augers, which are horizontally fixed on the frame and located on both sides of the four stacked disc cutters.

3. A disc type cotton stalk cutting device according to claim 1, characterized in that, Each of the aforementioned fixed-blade groups includes two fixed blades arranged side by side and spaced apart.

4. A disc type cotton stalk cutting device as claimed in claim 1, wherein, The transmission system includes a driving bevel gear, two driven bevel gear transmission assemblies, two first chain transmission assemblies, two first bevel gear transmission assemblies, two second bevel gear transmission assemblies, two second chain transmission assemblies, two third bevel gear transmission assemblies, two fourth bevel gear transmission assemblies, two fifth bevel gear transmission assemblies, two sixth bevel gear transmission assemblies, and two seventh bevel gear transmission assemblies. The power source is connected to the driving bevel gear via an input shaft. The driven bevel gears of the two driven bevel gear transmission assemblies are located on both sides of the driving bevel gear and are meshed. The transmission shafts of the first bevel gear transmission assemblies and the driven bevel gear transmission assemblies are connected via the first chain transmission assembly. The bevel gears of the second bevel gear transmission assemblies are meshed with the bevel gears of the first bevel gear transmission assemblies, and the transmission shaft of the second bevel gear transmission assemblies is connected to the conveyor paddle. The third bevel gear transmission assemblies... The drive shaft of the gear transmission assembly is connected to the drive shaft of the driven bevel gear transmission assembly via the second chain transmission assembly; the bevel gear of the fourth bevel gear transmission assembly meshes with the bevel gear of the third bevel gear transmission assembly; the stacked disc cutter located on the outer side is connected to the drive shaft of the fourth bevel gear transmission assembly; the bevel gear of the fifth bevel gear transmission assembly meshes with the bevel gear of the fourth bevel gear transmission assembly, and the bevel gears of the fifth and third bevel gear transmission assemblies are located on both sides of the bevel gear of the fourth bevel gear transmission assembly; the drive shaft of the sixth bevel gear transmission assembly is fixedly connected to the drive shaft of the fifth bevel gear transmission assembly; the bevel gear of the seventh bevel gear transmission assembly meshes with the bevel gear of the sixth bevel gear transmission assembly; the stacked disc cutter located in the middle is connected to the drive shaft of the seventh bevel gear transmission assembly.

5. A disc type cotton stalk cutting device according to claim 4, characterized in that, Each of the stacked disc cutters includes a first disc cutter blade, a second disc cutter blade, a third disc cutter blade, a fourth disc cutter blade, and a first connecting shaft. The first disc cutter blade, the second disc cutter blade, the third disc cutter blade, and the fourth disc cutter blade, which are arranged sequentially from top to bottom, are connected together by the first connecting shaft. The two ends of the first connecting shaft are rotatably connected to the frame. The cutting teeth of the first disc cutter blade, the second disc cutter blade, the third disc cutter blade, and the fourth disc cutter blade are straight saw teeth, oblique saw teeth, arc teeth, and stepped teeth, respectively.

6. A disc type cotton stalk cutting device as claimed in claim 4, wherein, Each of the conveying paddles includes two first serrated paddles, three second serrated paddles, two arc-shaped toothed paddles, and a second connecting shaft. The two first serrated paddles, three second serrated paddles, and two arc-shaped toothed paddles are distributed sequentially from top to bottom and connected as a whole by the second connecting shaft. The two ends of the second connecting shaft are rotatably connected to the frame. The size of the second serrated paddle is larger than the size of the first serrated paddle.