Wheat straw pulverizing and returning machine

Abstract

The present disclosure relates to the technical field of straw crushing, and one embodiment of the present disclosure provides a wheat straw crushing and returning machine, which comprises a crushing box, a discharge port is formed in the inner bottom wall of the crushing box, and the crushing box further comprises a crushing roller, a first motor, a crushing groove, a feeding mechanism and a pre-crushing mechanism. A plurality of crushing rollers are rotationally arranged in the crushing box, a plurality of first crushing teeth are fixedly arranged on the side wall of the crushing roller, the first motor is installed on the side wall of the crushing box on the side of the crushing roller, the output end of the first motor is fixedly connected with the adjacent crushing roller, the crushing groove is formed on the inner top wall of the crushing box, the side wall of the crushing groove is provided with a feeding port, the feeding mechanism is arranged in the feeding port and is used for pulling the straw to move in the feeding port, and the pre-crushing mechanism is arranged in the crushing groove and is used for preliminarily crushing the straw. Through the above technical solution, the technical problem that the wheat straw is easily wound on the crushing wheel and affects the crushing effect of the crushing wheel in the prior art is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of straw crushing technology, and more specifically, to a wheat straw crushing and returning machine. Background Technology

[0002] A wheat straw crushing and returning machine is an agricultural machinery device mainly used to crush harvested wheat straw and then spread the crushed straw back into the farmland to achieve the purpose of straw returning to the field.

[0003] When in use, a wheat straw crusher and return machine is usually suspended at the rear of a tractor. As the tractor moves forward, the straw enters the crushing chamber. Inside the crushing chamber, the high-speed rotating crushing blades crush the straw into small pieces. The crushed straw is then scattered in the field to complete the straw return operation.

[0004] However, wheat straw has a high moisture content and is quite flexible, making it prone to tangling during the crushing process. This tangling can then become entangled on components such as the blade shaft of the crushing wheel. Additionally, if the straw is too long, the crushing wheel may not be able to cut it in time, resulting in longer straw segments becoming entangled. For example, in years with abundant rainfall, the harvested wheat straw is very moist, making entanglement even more common when using a crusher to return the straw to the field, thus affecting the crushing effect. Utility Model Content

[0005] To overcome the above-mentioned defects, the embodiments of this disclosure provide a wheat straw crushing and returning machine, which solves the technical problem in the prior art that wheat straw is easily entangled on the crushing wheel, thus affecting the crushing effect of the crushing wheel on the straw.

[0006] According to one aspect, at least one embodiment of this disclosure provides a wheat straw crushing and returning machine, including a crushing box with a discharge port on the inner bottom wall of the crushing box, and further including crushing rollers, a first motor, a crushing trough, a feeding mechanism, and a pre-crushing mechanism. Multiple crushing rollers are rotatably arranged inside the crushing box, and multiple first crushing teeth are fixedly arranged on the sidewalls of the crushing rollers. The first motor is installed on the sidewall of the crushing box on one side of the crushing rollers, and the output end of the first motor is fixedly connected to the adjacent crushing roller. The crushing trough is opened on the inner top wall of the crushing box, and a feeding port is opened on the sidewall of the crushing trough. The feeding mechanism is disposed in the feeding port for pulling the straw to move within the feeding port. The pre-crushing mechanism is disposed in the crushing trough for preliminary crushing of the straw.

[0007] Preferably, the feeding mechanism includes:

[0008] The first feed roller has a first feed groove on the inner top wall of the feed inlet, and the first feed roller is rotatably arranged in the first feed groove.

[0009] The second feed roller has a second feed groove on the inner bottom wall of the feed inlet, a support frame is slidably arranged in the second feed groove, and the second feed roller is rotatably arranged in the support frame;

[0010] Support springs, a plurality of support springs are fixedly provided between the support frame and the bottom of the second feed trough;

[0011] The second motor is mounted on the crushing box, and its output end is fixedly connected to the first feed roller.

[0012] Furthermore, the pre-crushing mechanism includes:

[0013] A first cavity is formed on one side of the pulverizing tank, and a communication port is provided between the first cavity and the pulverizing tank.

[0014] A support base is slidably disposed in the first cavity. Multiple crushing columns are rotatably disposed on the side wall of the support base. The end of each crushing column away from the support base extends through the communication port into the crushing groove. Multiple second crushing teeth are fixedly disposed on the side wall of the crushing column away from the support base.

[0015] A reciprocating movement mechanism is disposed on the support base and is used to drive the support base to reciprocate within the first cavity;

[0016] A rotating mechanism is provided on the support base and is used to drive the multiple crushing columns to rotate synchronously.

[0017] Furthermore, the reciprocating movement mechanism includes:

[0018] The drive disk has a drive groove on the top side wall of the support base, and the drive disk is rotatably mounted on the inner top wall of the first cavity, with the drive disk extending into the drive groove.

[0019] The drive rod is rotatably mounted on a shaft at an eccentric position of the drive disk, and the drive rod is fixedly mounted on the shaft. The end of the drive rod away from the shaft is rotatably connected to the side wall of the drive groove.

[0020] The third motor is mounted on the crushing box, and its output end is fixedly connected to the drive disk.

[0021] Furthermore, the rotating mechanism includes:

[0022] The second cavity is provided on one side of the crushing column, and a first bevel gear is rotatably provided on the side wall of the second cavity near the crushing column. The first bevel gear is fixedly connected to the crushing column.

[0023] The second bevel gear is rotatably mounted on the side wall of the second cavity, and the second bevel gear meshes with the first bevel gear;

[0024] A drive mechanism is provided on the support base and is used to drive multiple second bevel gears to rotate synchronously.

[0025] Based on the above solution, the drive mechanism includes:

[0026] A driving prism is rotatably disposed within the first cavity, the driving prism passes through the support base and the second bevel gear, and the driving prism is slidably connected to the second bevel gear;

[0027] A fourth motor is mounted on the crushing box, and the output end of the fourth motor is fixedly connected to the drive prism.

[0028] Based on the above scheme, the second bevel gear is provided with a first driving port, the support base is provided with a second driving port, the driving prism passes through the first driving port and the second driving port, and the driving prism is slidably connected to the side wall of the first driving port.

[0029] Based on the above scheme, multiple casters are installed on the bottom side wall of the crushing box.

[0030] Based on the above scheme, a traction frame is fixedly installed on the side wall of the crushing box.

[0031] Based on the above scheme, anti-slip textures are provided on the side walls of both the first feed roller and the second feed roller.

[0032] The beneficial effects of the embodiments disclosed herein are as follows:

[0033] 1. In this disclosure, by setting up a crushing roller, a first crushing tooth and a first motor, the operation of the first motor can drive the crushing roller to rotate, and at the same time, the rotation of the crushing roller drives the first crushing tooth to crush the straw;

[0034] 2. In this disclosure, by setting up a feeding mechanism, after one end of the straw is inserted into the first feeding roller and the second feeding roller, the second feeding roller can be driven by the elastic force of the support spring to press the straw onto the first feeding roller, so that the first feeding roller can be driven to rotate by the operation of the second motor, and at the same time, the straw can be fed by the friction between the first feeding roller and the straw.

[0035] 3. In this disclosure, the pre-crushing mechanism facilitates the reciprocating movement of the support base, crushing column, and second crushing tooth through the operation of the reciprocating movement mechanism. At the same time, while the second crushing tooth is reciprocating, the rotation mechanism can drive the second crushing tooth to rotate around the crushing column, thereby pre-crushing the straw through the second crushing tooth, thus avoiding the pre-crushed straw from getting tangled on the crushing roller and affecting the crushing effect.

[0036] 4. In this disclosure, the arrangement of the crushing roller, the first motor, the crushing trough, the feeding mechanism and the pre-crushing mechanism facilitates the pre-crushing of straw by the reciprocating movement and rotation of the second crushing tooth, thereby avoiding the problem of straw getting tangled on the crushing roller and affecting the crushing effect. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0038] Figure 1 This is a schematic diagram of the structure of a wheat straw crushing and returning machine according to one embodiment of the present disclosure;

[0039] Figure 2 for Figure 1 A cross-sectional view of the feeding mechanism in the embodiment;

[0040] Figure 3 for Figure 1 A schematic cross-sectional view of the crushing chamber in the embodiment;

[0041] Figure 4 for Figure 1 A cross-sectional structural schematic diagram of the rotating mechanism in the embodiment;

[0042] Figure 5 for Figure 1 The schematic diagram is a cross-sectional view of the reciprocating moving mechanism in the embodiment.

[0043] In the diagram: 1. Crushing box; 2. Crushing roller; 3. First crushing tooth; 4. First motor; 5. Crushing trough; 6. First feed roller; 7. Second feed roller; 8. Support frame; 9. Support spring; 10. Second motor; 11. Support base; 12. Crushing column; 13. Second crushing tooth; 14. Drive disc; 15. Drive rod; 16. Third motor; 17. First bevel gear; 18. Second bevel gear; 19. Drive prism; 20. Fourth motor; 21. Traction frame. Detailed Implementation

[0044] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0045] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0046] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0047] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0048] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0049] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0050] like Figures 1-5The diagram illustrates a wheat straw crushing and returning machine according to an embodiment of this disclosure. It includes a crushing box 1 with a discharge port on its inner bottom wall, and further comprises crushing rollers 2, a first motor 4, a crushing trough 5, a feeding mechanism, and a pre-crushing mechanism. Multiple crushing rollers 2 are rotatably arranged inside the crushing box 1. Multiple first crushing teeth 3 are fixedly arranged on the side walls of the crushing rollers 2. A first motor 4 is installed on one side of the crushing rollers 2 on the side wall of the crushing box 1. The output end of the first motor 4 is fixedly connected to the adjacent crushing roller 2. The crushing trough 5 is located in the crushing box 1. On the inner top wall, the side wall of the crushing trough 5 has a feed inlet. The feeding mechanism is set in the feed inlet to pull the straw to move in the feed inlet. The pre-crushing mechanism is set in the crushing trough 5 to perform preliminary crushing of the straw. Multiple moving wheels are installed on the bottom side wall of the crushing box 1. A traction frame 21 is fixedly set on the side wall of the crushing box 1. Specifically, after the straw is inserted into the crushing box 1, the operation of the first motor 4 can drive the crushing roller 2 to rotate. At the same time, the rotation of the crushing roller 2 drives the first crushing tooth 3 to crush the straw.

[0051] Reference Figures 1-3 The feeding mechanism includes a first feeding roller 6, a second feeding roller 7, support springs 9, and a second motor 10. A first feeding groove is formed on the inner top wall of the feeding inlet, and the first feeding roller 6 is rotatably arranged within the first feeding groove. A second feeding groove is formed on the inner bottom wall of the feeding inlet, and a support frame 8 is slidably arranged within the second feeding groove. The second feeding roller 7 is rotatably arranged within the support frame 8. Multiple support springs 9 are fixedly arranged between the support frame 8 and the bottom of the second feeding groove. The second motor 10 is mounted on the crushing box 1. The output end of the machine 10 is fixedly connected to the first feed roller 6. The side walls of the first feed roller 6 and the second feed roller 7 are provided with anti-slip texture. Specifically, after one end of the straw is inserted into the first feed roller 6 and the second feed roller 7, the second feed roller 7 can be driven by the elastic force of the support spring 9 to press the straw onto the first feed roller 6. Thus, the first feed roller 6 can be rotated by the operation of the second motor 10, and the straw can be fed by the friction between the first feed roller 6 and the straw.

[0052] Reference Figures 3-5The pre-crushing mechanism includes a first cavity, a support base 11, a reciprocating movement mechanism, and a rotating mechanism. The first cavity is located on one side of the crushing tank 5, and a communication port is provided between the first cavity and the crushing tank 5. The support base 11 is slidably disposed within the first cavity. Multiple crushing columns 12 are rotatably disposed on the side wall of the support base 11. The end of each crushing column 12 away from the support base 11 extends into the crushing tank 5 through the communication port. Multiple second crushing teeth 13 are fixedly disposed on the side wall of each crushing column 12 away from the support base 11. The reciprocating movement mechanism is disposed on the support base 11 and is used to drive the support base 11 to reciprocate within the first cavity. The rotating mechanism is disposed on the support base 11 and is used to drive the multiple crushing columns 12 to rotate synchronously. The reciprocating movement mechanism includes a drive disc 14, a drive rod 15, and a third motor 16. A drive groove is provided on the top side wall of the seat 11. A drive disk 14 is rotatably mounted on the inner top wall of the first cavity. The drive disk 14 extends into the drive groove. A rotating shaft is rotatably mounted at the eccentric position of the drive disk 14. A drive rod 15 is fixedly mounted on the rotating shaft. The end of the drive rod 15 away from the rotating shaft is rotatably connected to the side wall of the drive groove. A third motor 16 is mounted on the crushing box 1. The output end of the third motor 16 is fixedly connected to the drive disk 14. Specifically, the operator controls the operation of the third motor 16. The operation of the third motor 16 can drive the drive disk 14 to rotate. During the rotation of the drive disk 14, the support seat 11 can be pulled to reciprocate within the first cavity through the rotating shaft and the drive rod 15. At the same time, the movement of the support seat 11 drives the crushing column 12 and the second crushing tooth 13 to reciprocate.

[0053] Reference Figure 3 and Figure 4The rotating mechanism includes a second cavity, a second bevel gear 18, and a driving mechanism. A second cavity is formed on one side of the crushing column 12, near the side wall of the second cavity. A first bevel gear 17 is rotatably mounted on the side wall of the second cavity near the crushing column 12, and is fixedly connected to the crushing column 12. A second bevel gear 18 is rotatably mounted on the side wall of the second cavity and meshes with the first bevel gear 17. The driving mechanism is mounted on the support 11 and is used to drive multiple second bevel gears 18 to rotate synchronously. The driving mechanism includes a driving prism 19 and a fourth motor 20. The driving prism 19 is rotatably mounted within the first cavity and passes through the support 11 and the second bevel gears 18. The driving prism 19 meshes with the second bevel gears 18. 18 Sliding connection, the fourth motor 20 is installed on the crushing box 1, the output end of the fourth motor 20 is fixedly connected to the drive prism 19, the second bevel gear 18 has a first drive port, the support base 11 has a second drive port, the drive prism 19 passes through the first drive port and the second drive port, and the drive prism 19 is slidably connected to the side wall of the first drive port. Specifically, the operation of the fourth motor 20 can drive the drive prism 19 to rotate, and at the same time, through the sliding cooperation between the drive prism 19 and the first drive port, it can drive the second bevel gear 18 to rotate, and at the same time, through the meshing of the second bevel gear 18 and the first bevel gear 17, it can drive the first bevel gear 17 and the crushing column 12 to rotate, thereby causing the second crushing tooth 13 to rotate around the crushing column 12.

[0054] In this embodiment, during use, after the operator inserts one end of the straw into the first feed roller 6 and the second feed roller 7, the second feed roller 7, under the elastic force of the support spring 9, can press the straw onto the first feed roller 6. This allows the second motor 10 to rotate the first feed roller 6, and the friction between the first feed roller 6 and the straw can also feed the straw. During feeding, the operator controls the fourth motor 20, which rotates the drive prism 19. Simultaneously, the sliding engagement between the drive prism 19 and the first drive port rotates the second bevel gear 18. The meshing of the second bevel gear 18 with the first bevel gear 17 rotates the first bevel gear 17 and the crushing column 12, thereby causing the second powder... The crushing teeth 13 rotate around the crushing column 12, thereby pre-crushing the straw through the second crushing teeth 13. During the pre-crushing process, the operator controls the third motor 16 to work. The operation of the third motor 16 can drive the drive disc 14 to rotate. During the rotation of the drive disc 14, the support seat 11 can be pulled back and forth in the first cavity through the rotating shaft and drive rod 15. At the same time, the movement of the support seat 11 drives the crushing column 12 and the second crushing teeth 13 to move back and forth, thereby improving the crushing effect. The pre-crushed straw can enter the crushing box 1 through the crushing trough 5. At this time, the operation of the first motor 4 can drive the crushing roller 2 to rotate. At the same time, the rotation of the crushing roller 2 drives the first crushing teeth 3 to crush the straw. The crushed straw can be returned to the field through the discharge port.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A wheat straw crushing and returning machine, comprising a crushing box (1), wherein the inner bottom wall of the crushing box (1) is provided with a discharge port, characterized in that, Also includes: The crushing roller (2) is rotatably arranged inside the crushing box (1), and the side wall of the crushing roller (2) is fixedly provided with a plurality of first crushing teeth (3). The first motor (4) is installed on the side wall of the crushing box (1) on one side of the crushing roller (2), and the output end of the first motor (4) is fixedly connected to the crushing roller (2) nearby. The crushing tank (5) is located on the inner top wall of the crushing box (1), and the side wall of the crushing tank (5) is provided with a feed inlet. A feeding mechanism is provided inside the feeding inlet and is used to guide the straw to move within the feeding inlet; A pre-crushing mechanism is provided in the crushing trough (5) for preliminary crushing of straw.

2. The wheat straw crushing and returning machine according to claim 1, characterized in that, The feeding mechanism includes: The first feed roller (6) is provided with a first feed groove on the inner top wall of the feed port, and the first feed roller (6) is rotatably arranged in the first feed groove. The second feed roller (7) has a second feed groove on the inner bottom wall of the feed port. A support frame (8) is slidably arranged in the second feed groove, and the second feed roller (7) is rotatably arranged in the support frame (8). Support springs (9), a plurality of support springs (9) are fixedly provided between the support frame (8) and the bottom of the second feed trough; The second motor (10) is mounted on the crushing box (1), and the output end of the second motor (10) is fixedly connected to the first feed roller (6).

3. A wheat straw crushing and returning machine according to claim 2, characterized in that, The pre-crushing mechanism includes: The first cavity is opened on one side of the crushing tank (5), and a communication port is provided between the first cavity and the crushing tank (5); A support base (11) is slidably disposed in the first cavity. Multiple crushing columns (12) are rotatably disposed on the side wall of the support base (11). One end of the crushing column (12) away from the support base (11) passes through the communication port and extends into the crushing groove (5). Multiple second crushing teeth (13) are fixedly disposed on the side wall of the crushing column (12) away from the support base (11). A reciprocating moving mechanism is disposed on the support base (11) and is used to drive the support base (11) to reciprocate within the first cavity; A rotating mechanism is provided on the support base (11) for driving multiple crushing columns (12) to rotate synchronously.

4. A wheat straw crushing and returning machine according to claim 3, characterized in that, The reciprocating movement mechanism includes: The drive disk (14) is provided with a drive groove on the top side wall of the support base (11), and the drive disk (14) is rotatably provided on the inner top wall of the first cavity, and the drive disk (14) extends into the drive groove. The drive rod (15) is rotatably provided at the eccentric position of the drive disk (14), and the drive rod (15) is fixedly provided on the drive shaft. The end of the drive rod (15) away from the drive shaft is rotatably connected to the side wall of the drive groove. The third motor (16) is installed on the crushing box (1), and the output end of the third motor (16) is fixedly connected to the drive disk (14).

5. A wheat straw crushing and returning machine according to claim 4, characterized in that, The rotating mechanism includes: The second cavity is provided on one side of the crushing column (12) of the support base (11). A first bevel gear (17) is rotatably provided on the side wall of the second cavity near the crushing column (12). The first bevel gear (17) is fixedly connected to the crushing column (12). The second bevel gear (18) is rotatably disposed on the side wall of the second cavity, and the second bevel gear (18) meshes with the first bevel gear (17); A drive mechanism is provided on the support base (11) for driving multiple second bevel gears (18) to rotate synchronously.

6. A wheat straw crushing and returning machine according to claim 5, characterized in that, The drive mechanism includes: A driving prism (19) is rotatably disposed in the first cavity. The driving prism (19) passes through the support base (11) and the second bevel gear (18). The driving prism (19) is slidably connected to the second bevel gear (18). The fourth motor (20) is installed on the crushing box (1), and the output end of the fourth motor (20) is fixedly connected to the driving prism (19).

7. A wheat straw crushing and returning machine according to claim 6, characterized in that, The second bevel gear (18) has a first drive port, the support base (11) has a second drive port, the drive prism (19) passes through the first drive port and the second drive port, and the drive prism (19) is slidably connected to the side wall of the first drive port.

8. A wheat straw crushing and returning machine according to claim 7, characterized in that, Multiple casters are installed on the bottom side wall of the crushing box (1).

9. A wheat straw crushing and returning machine according to claim 8, characterized in that, A traction frame (21) is fixedly installed on the side wall of the crushing box (1).

10. A wheat straw crushing and returning machine according to claim 9, characterized in that, The sidewalls of the first feed roller (6) and the second feed roller (7) are provided with anti-slip texture.

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