Corn straw chopper

Abstract

The utility model relates to the technical field of agricultural machinery, in particular to a corn straw chopper which comprises a feeding table and a smashing box, the feeding table is fixedly connected with one side of the smashing box, a feeding port is formed in the position, connected with the feeding table, of the smashing box, and a pressing roller is arranged on the position, located on the feeding table, of one side of the feeding port. A baffle plate is arranged above the material pressing roller; a spinning frame and a cutting frame are sequentially arranged in the smashing box from the feeding port to the inside, the spinning frame is connected with the middle of the cutting frame through a connecting shaft, one end of the connecting shaft penetrates through the side, away from the feeding table, of the smashing box to be connected with a first motor, and a material pushing groove is formed in the position, located on the cutting frame, of the inner edge of the smashing box. The cutting frame is provided with a push plate at the material pushing groove; a discharging pipe tangent to the side edge of the smashing box is arranged on the side, located on the material pushing groove, of the smashing box, a smashing cutter is arranged in the discharging pipe, and the smashing cutter is connected with a second motor.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery technical field, concretely relates to a corn straw chopper. BACKGROUND

[0002] In agricultural production, a large amount of straw is produced after corn harvesting, and in the process of treating corn straw, the straw is usually directly returned to the field after being crushed or made into feed after being crushed, and in the crushing process, the corn straw is usually crushed by a corn straw chopper.

[0003] In the use process of the traditional straw chopper, the straw is usually directly sent from the feed inlet on one side of the crushing box, without any pressing and auxiliary equipment, so that the straw shakes during cutting, which produces a large amount of smoke and dust, affecting the use experience, and the straw can only be crushed into small pieces during cutting, which requires a long decay time during the operation of returning to the field, affecting the overall operation efficiency and quality, and cannot fully meet the needs of modern agricultural scale production, so it is necessary to develop a new type of corn straw chopper to solve the above problems. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is that the existing straw chopper directly sends the straw from the feed inlet on one side of the crushing box during use, which causes the straw to shake during cutting, produces a large amount of smoke and dust, affects the use experience, and the straw can only be crushed into small pieces during cutting, which requires a long decay time during the operation of returning to the field.

[0005] To solve the above technical problems, the utility model provides a technical scheme of a corn straw chopper, which comprises a feed table and a crushing box, wherein the feed table is fixedly connected with one side of the crushing box, the crushing box is provided with a feed inlet at the connection with the feed table, one side of the feed inlet is provided with a pressing roller at the feed table, and a baffle is arranged above the pressing roller.

[0006] The inside of the crushing box is sequentially provided with a spinning press frame and a cutting frame from the feed inlet, the spinning press frame and the cutting frame are connected through a connecting shaft, one end of the connecting shaft is connected with a first motor through the side of the crushing box away from the feed table, the inside edge of the crushing box is provided with a pushing groove at the cutting frame, and the cutting frame is provided with a pushing plate at the pushing groove.

[0007] The crushing box is provided with a discharge pipe tangent to the side edge of the crushing box on one side of the pushing groove, the inside of the discharge pipe is provided with a crushing knife, and the crushing knife is connected with a second motor.

[0008] As a preferred technical scheme of the utility model, the baffle is integrally an L-shaped plate with an inside bending angle of 120 degrees, and the side of the baffle connected with the pulverizing box is horizontal to the ground, and the width of the inside of the baffle is the same as that of the feeding table.

[0009] As a preferred technical scheme of the utility model, the pressing roller is provided with a plurality of staggered pressing blocks, the two sides of the pressing roller are provided with L-shaped positioning plates at the feeding table, the positioning plates are provided with movable grooves, the two ends of the pressing roller are rotatably connected with adjusting rings through the movable grooves, the adjusting rings are slidably connected with the top of the positioning plate through guide rods, and compression springs are arranged outside the guide rods between the guide plates and the adjusting rings.

[0010] As a preferred technical scheme of the utility model, the spinning frame is composed of a plurality of pressing plates arranged at equal angles, the cutting frame is composed of a plurality of support plates arranged at equal angles, and the plurality of pressing plates and the plurality of support plates are staggered.

[0011] As a preferred technical scheme of the utility model, the plurality of support plates are provided with pulverizing knives on the side close to the spinning frame, the top of the plurality of support plates is fixedly connected with a push plate, and the push plate is matched with the shape of the pushing groove.

[0012] As a preferred technical scheme of the utility model, the discharge pipe is located on the side of the cutting frame rotating direction inside the pulverizing box, and the discharge pipe is vertically arranged on the ground, and the inside of the discharge pipe is tangent to the pushing groove.

[0013] As a preferred technical scheme of the utility model, the discharge pipe is integrally an inverted U-shaped structure, and the inner diameter of the discharge pipe gradually increases from one side of the pulverizing box, the pulverizing knife is located on the side away from the pulverizing box inside the discharge pipe, the placing table is arranged above the pulverizing knife on the discharge pipe, and the second motor is connected with the pulverizing knife through the placing table and the discharge pipe.

[0014] The utility model has the advantages compared with the prior art:

[0015] 1、The corn straw cutting machine is provided with the pressing roller and the baffle at the feeding port of the pulverizing box, can fix the entering corn straw, reduce the amplitude of the corn straw shaking during cutting operation, further reduce the dust emission, the baffle can shield and protect the dust at the feeding port, improve the experience and safety in use;

[0016] 2、The corn straw cutting machine is provided with the discharge pipe and the pulverizing knife, can secondary pulverize the cut corn straw, reduce the size during pulverizing, and can adjust the rotating speed of the pulverizing knife according to the situation, further adjust the pulverizing size of the secondary pulverized corn straw. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model discloses a corn straw cutting machine's structure Figure 1 .

[0018] Figure 2 The utility model discloses a corn straw cutting machine's structure Figure 2 .

[0019] Figure 3 The utility model discloses a corn straw cutting machine's section view three -dimensional structure.

[0020] Figure 4 The utility model discloses a corn straw cutting machine's A place structure enlarged view.

[0021] Figure 5 The utility model discloses a corn straw cutting machine's discharge pipe place structure diagram.

[0022] Figure 6 The utility model discloses a corn straw cutting machine's spinning frame and cutting frame structure diagram.

[0023] As shown in the figure:

[0024] 1, feed table;2, crushing box;3, feed inlet;4, pressing roller;5, baffle;6, spinning frame;7, cutting frame;8, connecting shaft;9, first motor;10, pusher groove;11, push plate;12, discharge pipe;13, crushing knife;14, second motor;15, pressing block;16, positioning plate;17, movable groove;18, adjusting ring;19, guide rod;20, compression spring;21, multiple pressing plates;22, multiple support plates;23, placing table. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the utility model.

[0026] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected;Can be mechanical connection, can also be electrical connection;Can be directly connected, can also be indirectly connected through intermediate medium, can be the intercommunication of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances. Example

[0027] As per the instruction manual Figures 1-3 As shown, a corn stalk shredder includes a feeding platform 1 and a crushing box 2. The feeding platform 1 is fixedly connected to one side of the crushing box 2. The crushing box 2 is provided with a feeding port 3 at the connection with the feeding platform 1. A pressing roller 4 is provided on one side of the feeding port 3 at the feeding platform 1. A baffle 5 is provided above the pressing roller 4. The baffle 5 is an L-shaped plate with an inward bending angle of 120 degrees. The side of the baffle 5 connected to the crushing box 2 is horizontal to the ground. The width of the baffle 5 is the same as the inner side of the feeding platform 1. The baffle 5 can prevent the crushed stalks from bursting out of the feeding port 3 and prevent personnel from putting their hands or other objects into the crushing box 2.

[0028] In this utility model, the inside of the crushing box 2 is arranged with a spinning frame 6 and a cutting frame 7 in sequence from the feed inlet 3. The spinning frame 6 and the cutting frame 7 are connected by a connecting shaft 8. One end of the connecting shaft 8 passes through the side of the crushing box 2 away from the feed table 1 and is connected to a first motor 9. The connecting shaft 8 and the first motor 9 are rotatably connected by a synchronous pulley and a synchronous belt. The first motor 9 is located on the side above the crushing box 2. A pusher groove 10 is provided at the inner edge of the crushing box 2 at the cutting frame 7, and a pusher plate 11 is provided at the cutting frame 7 at the pusher groove 10.

[0029] In this utility model, the crushing box 2 is located on one side of the pusher trough 10 and is provided with a discharge pipe 12 that is tangent to the side of the crushing box 2.

[0030] As per the instruction manual Figure 4 As shown, L-shaped positioning plates 16 are provided on both sides of the pressing roller 4 at the feeding platform 1. Movable grooves 17 are provided on the positioning plates 16. Adjusting rings 18 are rotatably connected to both ends of the pressing roller 4 through the movable grooves 17. The top of the adjusting rings 18 is slidably connected to the top of the positioning plates 16 via guide rods 19. A compression spring 20 is provided on the outer side of the guide rods 19 between the guide plates and the adjusting rings 18. Through the elastic force of the compression springs 20, the pressing roller 4 can adapt to different thicknesses and quantities of straw, ensuring stable and uniform feeding.

[0031] As per the instruction manual Figure 5As shown, the discharge pipe 12 is located on one side of the cutting frame 7 in the pulverizing box 2, and the discharge pipe 12 is vertically arranged with the ground, and the inner side of the discharge pipe 12 is tangent to the pushing groove 10. The discharge pipe 12 is a whole inverted U-shaped structure, and the inner diameter of the discharge pipe 12 gradually increases from one side of the pulverizing box 2, the pulverizing knife 13 is located inside the discharge pipe 12 away from one side of the pulverizing box 2, and the pulverizing knife 13 is located above the discharge pipe 12 and is provided with a placement table 23. The second motor 14 is located on the placement table 23 and penetrates the placement table 23 and the discharge pipe 12 and is connected with the pulverizing knife 13. This structure facilitates smooth discharge of the chopped straw, and secondary pulverization can make the particle size of the discharged straw more uniform.

[0032] As shown in the accompanying drawings Figure 6 As shown, the spinning frame 6 is composed of a plurality of pressing plates 21 arranged at equal angles, the cutting frame 7 is composed of a plurality of support plates 22 arranged at equal angles, and the plurality of pressing plates 21 and the plurality of support plates 22 are arranged in a staggered manner. The plurality of support plates 22 are provided with a pulverizing knife 13 on the side close to the spinning frame 6, the top of the plurality of support plates 22 is connected and fixed with the push plate 11, and the push plate 11 is matched with the shape of the pushing groove 10. The staggered arrangement makes the straw be preliminarily processed by spinning, and then be finely chopped by the cutting frame 7, thereby improving the chopping effect.

[0033] In the specific implementation, when the corn straw chopper is used, first, the corn straw is placed on the feeding table 1, and the corn straw is sent from the feeding table 1 to the pressing roller 4. The baffle 5 can prevent the pulverized straw from spouting out of the feeding port 3, and prevent personnel from inserting hands or other objects into the pulverizing box 2. The pressing roller 4 is pressed against the straw by a plurality of pressing blocks 15 under the action of spring force, so that the straw can smoothly enter the feeding port 3 of the pulverizing box 2 without being dispersed from the feeding port 3 during the pulverizing process.

[0034] The first motor 9 is started to drive the connecting shaft 8 to rotate, so that the plurality of pressing plates 21 of the spinning frame 6 preliminarily spin the straw, and the leaves and the like on the straw are knocked off and pressed down on the corn straw in the pulverizing box 2. The straw is rebounded after being pressed down, and can contact and be cut by the plurality of cutting knives on the cutting frame 7 after rebounding, thereby reducing the strength required for cutting. Subsequently, the chopped straw enters the inside of the pulverizing box 2 and moves to the pushing groove 10.

[0035] During the rotation of the cutting frame 7, the push plate 11 continuously pushes the corn straw pieces in the pushing groove 10 along the pushing groove 10, so that the corn straw pieces enter the discharge pipe 12 under the action of inertia, and the discharge pipe 12 is subjected to secondary pulverization by the pulverizing knife 13 in the discharge pipe 12. Finally, the crushed material is discharged along the discharge pipe 12, and the whole chopping process is completed.

[0036] The above has described the utility model and its implementation mode, and this description is not restrictive, and the specific implementation mode shown is only one of the implementation modes of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structural modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.

Claims

1. A corn straw chopper, comprising a feeding table (1) and a pulverizing box (2), wherein the feeding table (1) is fixedly connected with one side of the pulverizing box (2), characterized in that: The crushing box (2) is provided with a feeding port (3) at the connection with the feeding table (1), and a pressing roller (4) is arranged at one side of the feeding port (3) and located at the feeding table (1); a baffle (5) is arranged above the pressing roller (4). The inside of the crushing box (2) is sequentially provided with a rotary pressing frame (6) and a cutting frame (7) from the feeding port (3) inwards, and the rotary pressing frame (6) and the cutting frame (7) are connected by a connecting shaft (8) in the middle; one end of the connecting shaft (8) is connected with a first motor (9) through the side of the crushing box (2) away from the feeding table (1); a pushing groove (10) is arranged at the inside edge of the crushing box (2) and located at the cutting frame (7); and a pushing plate (11) is arranged at the cutting frame (7) and located at the pushing groove (10). The crushing box (2) is provided with a discharge pipe (12) at one side of the pushing groove (10) and tangent to the side edge of the crushing box (2); the inside of the discharge pipe (12) is provided with a crushing knife (13); and the crushing knife (13) is connected with a second motor (14).

2. A corn stover chopper according to claim 1, characterized in that: The baffle (5) is an L-shaped plate with an inside bending angle of 120 degrees; the side of the baffle (5) connected with the crushing box (2) is horizontal to the ground; and the baffle (5) has the same width as the inside of the feeding table (1).

3. A corn stover chopper as defined in claim 1, wherein: The pressing roller (4) is provided with a plurality of pressing blocks (15) arranged in a staggered manner; the two sides of the pressing roller (4) are provided with L-shaped positioning plates (16) at the feeding table (1); the positioning plates (16) are provided with movable grooves (17); the two ends of the pressing roller (4) are rotatably connected with adjusting rings (18) through the movable grooves (17); the adjusting rings (18) are slidably connected with the top of the positioning plates (16) through guide rods (19); and the outside of the guide rods (19) between the guide plates and the adjusting rings (18) are provided with compression springs (20).

4. A corn stover chopper according to claim 1, characterized in that: The rotary pressing frame (6) is composed of a plurality of pressing plates (21) arranged at equal angles; the cutting frame (7) is composed of a plurality of support plates (22) arranged at equal angles; and the plurality of pressing plates (21) and the plurality of support plates (22) are arranged in a staggered manner.

5. A corn stover chopper according to claim 4, characterized in that: The plurality of support plates (22) are provided with the crushing knife (13) at the side close to the rotary pressing frame (6); the top of the plurality of support plates (22) is fixedly connected with the pushing plate (11); and the pushing plate (11) is matched with the shape of the pushing groove (10).

6. A corn stover chopper according to claim 1, characterized in that: The discharge pipe (12) is located at one side of the cutting frame (7) in the rotating direction inside the crushing box (2); the discharge pipe (12) is vertically arranged to the ground; and the inside of the discharge pipe (12) is tangent to the pushing groove (10).

7. A corn stover chopper as defined in claim 1, wherein: The discharge pipe (12) is an inverted U-shaped structure as a whole; the inner diameter of the discharge pipe (12) gradually increases from one side of the crushing box (2); the crushing knife (13) is located at the side of the discharge pipe (12) away from the crushing box (2) inside the discharge pipe (12); the discharge pipe (12) is provided with a placing table (23) above the crushing knife (13); and the second motor (14) is connected with the crushing knife (13) through the placing table (23) and the discharge pipe (12).

Images