Multi-tooth-blade cotton straw crusher

By designing a multi-toothed cotton stalk crusher, a combination of fixed and semi-fixed blades is used in conjunction with a moving blade assembly and a fixed blade, along with a cyclone dust removal system. This solves the problems of poor cotton stalk crushing effect and excessive dust, achieving efficient crushing and dust removal.

CN224037958UActive Publication Date: 2026-03-27XINJIANG UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

Existing cotton stalk crushing devices have poor crushing effects and produce a lot of dust during the crushing process, which affects health.

Method used

A multi-toothed cotton stalk crusher is designed, which uses a combination of fixed and semi-fixed blades in conjunction with a moving blade assembly and a fixed blade, combined with a cyclone dust removal system. The fan blades are rotated by a motor-driven connecting shaft to achieve efficient crushing and dust removal.

Benefits of technology

It improves the crushing effect of cotton stalks, reduces dust pollution, and enhances the output quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The multi-tooth-blade cotton straw crusher comprises a machine frame, moving wheels are arranged at the four corners of the bottom of the machine frame, a crushing bin is arranged on the upper surface of the machine frame, a feeding port is formed in one side of the top end of the crushing bin, and a crushing bin cover plate is arranged on the other side of the top end of the crushing bin. And a plurality of fixed cutters which are evenly and orderly distributed are arranged on the surface of the crushing bin cover plate, a connecting shaft is rotationally connected to an inner cavity of the crushing bin through a bearing, and a movable cutter set is arranged on the connecting shaft. According to the utility model, three different knife shapes are used, a fixed assembly form and a semi-fixed assembly form are simultaneously adopted, and the fixed knife and the two knife rests which are fixed on the cover plate of the crushing bin of the case are matched with each other, so that two effects of crushing and hammer explosion are achieved, and the crushing problem that cotton straws and cotton skins are difficult to break and process is solved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to cotton stalk crushing technical field especially relates to a multi-tooth blade cotton stalk crusher. BACKGROUND

[0002] Straw is the general term of mature crop stem leaf ear part, usually refers to the surplus part of wheat, rice, corn, potato, rape, cotton, sugarcane and other crops after harvesting seed, and more than half of the product of photosynthesis of crops exists in straw, and straw is rich in nitrogen, phosphorus, potassium, calcium, magnesium and organic matter, etc., is a renewable biological resource with multiple purposes, since the 1980s of the 20th century, the grain output has increased greatly, and the straw quantity is also more, combined with the popularization of coal-saving and coal-saving technology, the popularization of burning coal and using liquefied gas, there is a large amount of surplus straw in rural areas, and burning straw as waste material can pollute the air, and the recycling of straw needs to use a crushing device.

[0003] Because the straw of cotton is relatively large, the existing crushing device has poor crushing effect, and there is more dust in the crushing process, which affects the health of people. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a multi-tooth blade cotton stalk crusher to solve the technical problems in the background art.

[0005] In order to achieve the above-mentioned purpose, the specific technical scheme of the utility model is as follows: a multi-tooth blade cotton stalk crusher, including the frame, the bottom four corners of the frame are provided with movable wheels, the upper surface of the frame is provided with a crushing bin, the top of the crushing bin is provided with a feeding port on one side and a crushing bin cover plate on the other side, the surface of the crushing bin cover plate is provided with a plurality of uniform and orderly distributed fixed knives, the inner cavity of the crushing bin is rotatably connected with a connecting shaft through a bearing, a movable knife group is arranged on the connecting shaft, a fan housing is arranged on the outside of the crushing bin, the end of the connecting shaft extends into the inner cavity of the fan housing and is provided with a plurality of circumferentially arrayed fan blades, a discharge bin is arranged below the crushing bin in the inside of the frame, the discharge bin is connected with the fan housing through a fan feeding pipe, the fan housing is connected with a cyclone dust removal cylinder through a cyclone feeding pipe, and a driving mechanism for driving the rotation of the connecting shaft is arranged on the frame.

[0006] Preferably, the driving mechanism comprises a motor, a bottom plate is arranged at the bottom of the frame, the motor is mounted on the bottom plate, and the shaft part of the motor is connected with the connecting shaft through a belt transmission assembly.

[0007] Preferably, the pulverizing bin cover plate is arc-shaped, the fixed knife includes a fixed seat, the bottom of the fixed seat is provided with two symmetrically distributed fixed knife heads, the top end of the fixed seat is provided with a stud, the surface of the pulverizing bin cover plate is provided with a through hole for mounting the stud, and a gasket and a nut are connected to the stud.

[0008] Preferably, the moving knife group includes a plurality of equidistantly distributed broken knife heads, the plurality of broken knife heads are sleeved on the connecting shaft, the plurality of broken knife heads are fixedly connected through four circumferentially arrayed connecting rods, two first knife pieces and two second knife pieces are arranged between each adjacent two broken knife heads, the first knife piece and the second knife piece are fixed to the connecting rod, and the first knife piece is located above the second knife piece.

[0009] Preferably, the plurality of broken knife heads are connected through two circumferentially arrayed knife straight plates.

[0010] Preferably, the bottom of the pulverizing bin and the top end of the discharging bin are in communication with each other, and the top end of the discharging bin is provided with a screen.

[0011] Preferably, the top end of the cyclone dust removal cylinder is provided with a dust discharge port, and the bottom of the cyclone dust removal cylinder is provided with a discharge port.

[0012] The multi-tooth blade cotton straw crusher has the following advantages:

[0013] 1. The utility model discloses a three different knife shapes are used, and fixed and semi-fixed two assembly forms are adopted simultaneously, cooperate with the fixed knife fixed on the machine box pulverizing bin cover plate, and the two knife holders cooperate with each other to play the two aspects of crushing and hammering, solve the crushing problem of difficult breaking and processing of cotton straw and cotton skin.

[0014] 2. The utility model discloses a motor is started, and under the action of the belt transmission assembly, the connecting shaft is rotated, so that the connecting shaft drives the moving knife group to rotate, simultaneously, since the connecting shaft is connected with the fan blade, therefore, when the connecting shaft rotates, the fan blade will rotate along with the connecting shaft, so that the cotton straw is crushed to a certain granularity, and then enters the discharging bin from the pulverizing bin, simultaneously, since the fan blade rotates and the wind drives the crushed material to enter the cyclone dust removal cylinder, the dust and impurities are blown out from the dust discharge port at the top end of the cyclone dust removal cylinder, and the qualified material is leaked out from the discharge port below the cyclone dust removal cylinder, the cyclone dust removal cylinder is further arranged to remove the material impurities and crushed powder, and the crushing and discharging quality is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of the drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0017] Figure 2 It is Figure 1 It is a schematic diagram of the structure from another perspective.

[0018] Figure 3 It is a schematic diagram of the structure inside the crushing bin of the present application.

[0019] Figure 4 It is a schematic diagram of the structure of the moving knife set in the present application.

[0020] Figure 5 It is a schematic diagram of the structure of the fixed knife in the present application.

[0021] Marked in the figure: 1, rack; 2, bottom plate; 3, moving wheel; 4, motor; 5, crushing bin; 6, feed inlet; 7, crushing bin cover plate; 8, fixed knife; 9, belt transmission assembly; 10, cyclone material conveying pipeline; 11, cyclone dust removal cylinder; 12, dust discharge port; 13, fan housing; 14, fan feeding pipe; 15, discharge bin; 16, screen; 17, connecting shaft; 18, fan blade; 19, moving knife set; 20, crushing cutter head; 21, connecting rod; 22, cutter head straight plate; 23, first cutter head piece; 24, second cutter head piece; 25, fixed seat; 26, fixed cutter head; 27, stud. DETAILED DESCRIPTION

[0022] In the following, only some exemplary embodiments are simply described. As those skilled in the art can realize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the present application. Therefore, the drawings and the description are considered to be exemplary in nature rather than limiting.

[0023] In the description of the embodiments of the present application, it should be understood that the orientation or positional relationship indicated by the terms "length", "vertical", "horizontal", "top", "bottom" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0026] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0027] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of a multi-toothed cotton stalk crusher according to this utility model.

[0028] like Figures 1-5 As shown, this utility model discloses a multi-toothed cotton stalk crusher, including a frame 1. The frame 1 has four casters 3 at its bottom corners. A crushing chamber 5 is located on the upper surface of the frame 1. A feed inlet 6 is located on one side of the top of the crushing chamber 5, and a crushing chamber cover 7 is located on the other side. Multiple evenly and orderly distributed fixed blades 8 are arranged on the surface of the crushing chamber cover 7. The crushing chamber cover 7 has an arc-shaped structure. Each fixed blade 8 includes a fixed base 25. Two symmetrically distributed fixed blade heads 26 are located at the bottom of the fixed base 25. A stud 27 is located at the top of the fixed base 25. The surface of the crushing chamber cover 7 has through holes for installing the stud 27, and a washer and nut are connected to the stud 27 to facilitate the installation and fixation of the fixed blades 8. Through the cooperation between the fixed blades 8 and the moving blade assembly 19, the cotton stalks can be effectively crushed.

[0029] The inner cavity of the crushing bin 5 is rotatably connected with a connecting shaft 17 through a bearing, the connecting shaft 17 is provided with a moving cutter set 19, the moving cutter set 19 comprises a plurality of equally spaced breaking cutter heads 20, the plurality of breaking cutter heads 20 are sleeved on the connecting shaft 17, and the plurality of breaking cutter heads 20 are fixedly connected through four connecting rods 21 which are circumferentially arrayed, and two first cutter head pieces 23 and two second cutter head pieces 24 are arranged between each adjacent two breaking cutter heads 20, the first cutter head piece 23 and the second cutter head piece 24 are fixed on the connecting rod 21, the first cutter head piece 23 is located above the second cutter head piece 24, the plurality of breaking cutter heads 20 are connected through two cutter head straight plates 22 which are circumferentially arrayed, three different cutter shapes are used, and fixed and semi-fixed assembly forms are simultaneously used, the fixed cutter 8 fixed on the cabinet crushing bin cover plate 7, and the two cutter frames are matched to play the two aspects of breaking and hammering, so that the breaking problem of the cotton stalks and cotton skins which are difficult to break and process is solved.

[0030] The outer side of the crushing bin 5 is provided with a fan shell 13, the end of the connecting shaft 17 extends into the inner cavity of the fan shell 13 and is provided with a plurality of circumferentially arrayed fan blades 18, the inside of the rack 1 is provided with a discharge bin 15 below the crushing bin 5, the bottom of the crushing bin 5 and the top end of the discharge bin 15 are in communication with each other, and the top end of the discharge bin 15 is provided with a screen 16, so that the cotton stalks can only pass through the screen 16 into the discharge bin 15 after being broken to a suitable particle size. The discharge bin 15 is connected with the fan shell 13 through the fan feeding pipe 14, the fan shell 13 is connected with a cyclone dust removal cylinder 11 through the cyclone feeding pipe 10, the top end of the cyclone dust removal cylinder 11 is provided with a dust discharge port 12, the bottom of the cyclone dust removal cylinder 11 is provided with a discharge port, the rack 1 is provided with a driving mechanism for driving the connecting shaft 17 to rotate, the driving mechanism comprises a motor 4, the bottom of the rack 1 is provided with a bottom plate 2, the motor 4 is installed on the bottom plate 2, the shaft part of the motor 4 is connected with the connecting shaft 17 through a belt transmission assembly 9, the connecting shaft 17 is driven to rotate under the action of the belt transmission assembly 9 by starting the motor 4, so that the connecting shaft 17 drives the moving cutter set 19 to rotate, at the same time, since the connecting shaft 17 is connected with the fan blades 18, the connecting shaft 17 drives the fan blades 18 to rotate when the connecting shaft 17 rotates, so that the cotton stalks are broken to a certain particle size and then enter the discharge bin 15 from the crushing bin 5, at the same time, since the fan blades 18 rotate, the broken materials are driven into the cyclone dust removal cylinder 11 by the wind power, the dust and impurities are blown out from the dust discharge port 12 at the top end of the cyclone dust removal cylinder 11, and the qualified materials are leaked out from the discharge port below the cyclone dust removal cylinder 11, so that the material impurities and broken powder are further removed by the cyclone dust removal cylinder 11, and the breaking and discharging quality is improved.

[0031] The working principle of the multi-tooth blade cotton stalk crusher is as follows: when in use, the cotton stalks are put into the feeding port 6, and the motor 4 is started, at this time, the moving cutter group 19 rotates along with the connecting shaft 17, and cooperates with the fixed cutter to crush the cotton stalks, the crushed particles enter the discharge bin 15 through the screen 16, since the connecting shaft 17 rotates to drive the fan blade 18 to rotate, the particle conveying pipe 14 and the cyclone conveying pipe 10 convey the particles to the cyclone dust removal cylinder 11, the dust and impurities are blown out from the dust outlet 12 at the top end of the cyclone dust removal cylinder 11, and the qualified crushed materials leak out from the discharge port below the cyclone dust removal cylinder 11.

[0032] It can be understood that the utility model is described through some embodiments, and the person skilled in the art knows that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

Claims

1. A multi-toothed blade cotton stalk shredder characterized by: The utility model provides a kind of waste paper recycling machine, including rack (1), the bottom four corners of the rack (1) are provided with moving wheel (3), the upper surface of the rack (1) is provided with crushing bin (5), the top one side of the crushing bin (5) is provided with feed inlet (6), the other side is provided with crushing bin cover plate (7), the surface of the crushing bin cover plate (7) is provided with multiple uniform orderly distribution fixed knife (8), the inner chamber of the crushing bin (5) is rotatably connected with connecting shaft (17) by bearing, connecting shaft (17) is provided with moving knife group (19), the outside of the crushing bin (5) is provided with fan shell (13), the end of connecting shaft (17) extends to fan shell (13) inner chamber and is provided with multiple circular array distribution fan blade (18), the inside of the rack (1) is below crushing bin (5) and is provided with discharge bin (15), discharge bin (15) is connected with fan shell (13) by fan feeding pipe (14), fan shell (13) is connected with cyclone dust removal cylinder (11) by cyclone feeding pipe (10), the rack (1) is provided with driving mechanism for driving connecting shaft (17) rotation.

2. A multi-toothed blade cotton stalk shredder according to claim 1, characterized in that: The driving mechanism includes a motor (4), the bottom of the rack (1) is provided with a bottom plate (2), the motor (4) is installed on the bottom plate (2), and the shaft part of the motor (4) is connected with the connecting shaft (17) through a belt transmission assembly (9).

3. A multi-toothed blade cotton stalk shredder according to claim 1, characterized in that: The crushing bin cover plate (7) is an arc structure, the fixed knife (8) includes a fixed seat (25), the bottom of the fixed seat (25) is provided with two symmetrically distributed fixed knife heads (26), the top end of the fixed seat (25) is provided with a stud (27), the surface of the crushing bin cover plate (7) is provided with a through hole for mounting the stud (27), and the stud (27) is connected with a gasket and a nut.

4. A multi-toothed blade cotton stalk shredder according to claim 1, characterized in that: The moving knife group (19) includes a plurality of equally spaced breaking knife heads (20), a plurality of the breaking knife heads (20) are sleeved on the connecting shaft (17), and a plurality of the breaking knife heads (20) are fixedly connected by four circumferentially arrayed connecting rods (21), and two first knife pieces (23) and two second knife pieces (24) are arranged between each adjacent two breaking knife heads (20), the first knife piece (23) and the second knife piece (24) are fixed on the connecting rod (21), and the first knife piece (23) is located above the second knife piece (24).

5. A multi-toothed blade cotton stalk shredder according to claim 4, characterized in that: The breaking knife heads (20) are connected by two circumferentially arrayed knife straight plates (22).

6. A multi-toothed blade cotton stalk shredder according to claim 1, characterized in that: The bottom of the crushing bin (5) and the top end of the discharge bin (15) are in communication, and the top end of the discharge bin (15) is provided with a screen (16).

7. A multi-toothed blade cotton stalk shredder according to claim 1, characterized in that: The top end of the cyclone dust removal cylinder (11) is provided with a dust discharge port (12), and the bottom of the cyclone dust removal cylinder (11) is provided with a discharge port.