Straw smashing and returning device

By designing a combination of support frame, crushing unit and guide frame, the problem of uneven straw crushing in existing devices is solved, achieving efficient crushing of fixed and separated straw, and the degree of crushing can be adjusted by the discharge port to meet different farmland management needs.

CN223872851UActive Publication Date: 2026-02-06MIANYANG TEACHERS COLLEGE
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Patent Information

Application Number
CN202520507859.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-02-06
Estimated Expiration
2035-03-21

AI Technical Summary

Technical Problem

Existing straw crushing devices are not effective at crushing both the straw portion fixed to the ground and the straw portion separated from the ground, especially the separated straw located above the crushing blades, which is difficult to crush.

Method used

A straw crushing and returning device was designed, including a support frame, a first crushing unit, a guide frame, and a placement box. The support frame is moved by a traction device, the first crushing unit crushes the fixed straw, the guide frame guides the separated straw into the placement box, the second crushing unit further crushes the straw in the placement box, and the degree of crushing is adjusted by adjusting the diameter of the discharge port.

Benefits of technology

It achieves uniform and efficient crushing of both straw parts fixed to the ground and straw parts separated from the ground, and the degree of crushing can be adjusted by adjusting the discharge port diameter to meet different needs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a straw smashing and returning device which comprises a support, a connecting hole used for being connected with traction equipment is formed in the support, a first smashing unit used for smashing straw is installed on the lower side of the front portion of the support, a containing box used for containing the straw is installed behind the support, and a second smashing unit used for smashing the straw is installed in the containing box. The support is provided with a guide frame between the first smashing unit and the containing box, the guide frame is matched with the movable support to enable straw to move to the containing box from the ground, and a discharging port is formed in the bottom of the containing box. And the purpose of achieving a good crushing effect on the straw part fixed to the ground and the straw part separated from the ground is achieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural equipment technical field, concretely is a kind of straw pulverization and returning to field device. BACKGROUND

[0002] Straw pulverization and returning to field can effectively increase the organic matter of soil, increase the yield of crops, also can prevent straw burning phenomenon, reduce resource waste, protect the environment.Partial straw pulverizing device is placed in close to ground when using, through the movement of whole device and the rotation of pulverizing blade, directly pulverize the straw on ground, this way is good to the fixed straw part of ground, such as the lower part of stem and stalk of wheat after harvesting, etc., to the separated straw part of ground, such as the wheat stem excluded from harvesting equipment after harvesting, etc., if it is stacked on ground, the straw above pulverizing blade is not easy to pulverize, and the pulverizing effect is poor, so a kind of equipment is needed, which is good to the fixed straw part of ground and the separated straw part of ground. SUMMARY

[0003] In view of the above, to solve the problems in the prior art, the utility model provides a kind of straw pulverization and returning to field device.

[0004] Its technical scheme is, a kind of straw pulverization and returning to field device, including support, the support is opened for being connected with the connecting hole of traction equipment, the first pulverizing unit for pulverizing straw is installed in the lower of the support, the placing box for containing straw is installed in the rear of the support, the second pulverizing unit for pulverizing straw is installed in the placing box, the support is installed with guide frame between first pulverizing unit and placing box, and the structure that is formed through guide frame and the support of moving cooperation makes that straw moves from ground to the structure of placing box, the discharge port is set in the bottom of the placing box.

[0005] As a preferred design, the first pulverizing unit includes first pulverizing blades, each first pulverizing blade is rotatably arranged relative to the support, and each first pulverizing blade is upwardly rotated at a side away from the second pulverizing unit.

[0006] As a preferred design, the support is rotatably connected with a mounting shaft, the first pulverizing blades are mounted on the mounting shaft, and first motors are mounted on the support, and each first motor output shaft is drivingly connected with the mounting shaft.

[0007] As a preferred design, the guide frame is a slope structure inclined upward from the rear side of the first pulverizing unit, the lower end of the guide frame is adjacent to the first cutting unit, and the upper end of the guide frame is close to the box opening of the placing box.

[0008] As a preferred design, the guide frame is rotatably connected with the support, and a fastener for fixing the guide frame and the support is arranged between the guide frame and the support.

[0009] As a preferred design, the guide frame comprises a flat plate, and a fork rod is arranged on one side of the flat plate close to the first crushing unit.

[0010] As a preferred design, the second crushing unit comprises rotating shafts, the rotating shafts are parallel to each other, the rotating shafts are rotatably connected with the support, the rotating shafts are opposite in rotation direction, second crushing blades are arranged on the rotating shafts, second motors are arranged on the support, and output shafts of the second motors are drivingly connected with the rotating shafts.

[0011] As a preferred design, the placing box is rotatably connected with a baffle for closing the discharge port at the discharge port, the baffle is rotatably connected with a first rod, the first rod is rotatably connected with a second rod, a fixing plate is arranged at the bottom of the placing box, a through hole is formed in the fixing plate, the second rod passes through the through hole and is arranged at both sides of the fixing plate, and fixing blocks are threadedly connected with the second rod at both sides of the fixing plate.

[0012] As a preferred design, the support comprises first side plates and second side plates, a fixing rod is arranged between the first side plates and the second side plates, and connecting holes are formed in the same side of the first side plates and the second side plates.

[0013] As a preferred design, the first side plates and the second side plates are matched with a "C"-shaped structure of a surrounding plate to form the placing box.

[0014] Compared with the prior art, the straw crushing and returning to field device has the beneficial effects that:

[0015] 1. The support is driven by the traction device to move on the ground such as a field, the first crushing unit is used to crush the straw part fixed to the ground, when the height of the straw part fixed to the ground is high, the first crushing unit is also used to cut the straw part, in the process of moving forward of the support, the guide frame is used to move the straw separated from the ground from the ground to the placing box, the second crushing unit is used to crush the straw in the placing box, and the crushed straw falls to the field through the discharge port, so that the crushing and returning to field process of the straw is completed, and the purpose of achieving good crushing effect of the straw part fixed to the ground and the straw part separated from the ground is achieved.

[0016] 2、If the caliber size of the discharge port is small, the efficiency of straw moving out of the discharge port can be reduced, so that the straw is placed in the placing box for a longer time, that is, the time of the straw being crushed by the second crushing blade is longer, so that the straw with a higher crushing degree is obtained, if the caliber size of the discharge port is large, the efficiency of straw moving out of the discharge port can be improved, so that the straw is placed in the placing box for a shorter time, that is, the time of the straw being crushed by the second crushing blade is shorter, so that the straw with a lower crushing degree is obtained, so that the crushing degree of the straw is adjusted by adjusting the caliber size of the discharge port. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a front view schematic diagram of the utility model.

[0018] Fig. 2 It is a schematic diagram of the support in A-A direction of the utility model.

[0019] Fig. 3 It is a local enlarged schematic diagram of B of the utility model.

[0020] In the drawing: 1 support, 1.1 first side plate, 1.2 second side plate, 1.3 fixed rod, 2 connecting hole, 3 first crushing unit, 3.1 first crushing blade, 3.2 mounting shaft, 4 second crushing unit, 4.1 second crushing blade, 4.2 rotating shaft, 5 placing box, 6 guide frame, 6.1 flat plate, 6.2 fork rod, 7 discharge port, 8 fastener, 9 cylindrical head, 10 arc-shaped long hole, 11 baffle, 12 first rod, 13 second rod, 14 fixed sheet, 15 fixed block, 16 fence. DETAILED DESCRIPTION

[0021] The technical solutions of the embodiments of the utility model will be clearly and completely described below in combination with the drawings, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the scope protected by the utility model, in the description of the utility model, it is necessary to explain that the orientation or position relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relation based on the drawing shown, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as the limitation of the utility model.

[0022] In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the utility model, it should be pointed out that unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside 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.

[0023] The utility model will be described in further detail below through specific embodiment and in conjunction with the drawings.

[0024] Please refer to Figs. 1-3 The utility model provides a technical scheme: a straw smashing and returning to field device, including support 1, support 1 is set up the connecting hole 2 for being connected with traction equipment, wherein traction equipment can be suitable equipment such as tractor, support 1 is bolted with traction equipment through connecting hole 2, so as to drive support 1 to move on the ground through traction equipment, the first smashing unit 3 for smashing straw is installed at the front lower side of support 1, the placing box 5 for containing straw is installed at the rear of support 1, the second smashing unit 4 for smashing straw is installed in placing box 5, support 1 is installed guide frame 6 between the first smashing unit 3 and placing box 5, and forms the structure that makes straw move from the ground to the place of placing box 5 through guide frame 6 and the cooperation of moving support 1, the bottom of placing box 5 is provided with discharge port 7, when using, traction equipment drives support 1 to move on the ground such as field, the fixed part of straw such as the lower part of stem and stalk of wheat after harvesting that is fixed with the ground is smashed by the first smashing unit 3, when the fixed part of straw with the ground is higher, it can also be cut off by the first smashing unit 3, in the process of moving forward of support 1, through guide frame 6, the separated part of straw with the ground is moved from the ground to the place of placing box 5, the straw in placing box 5 is smashed by the second smashing unit 4, the smashed straw falls to the field through discharge port 7, so as to complete the smashing and returning to field process of straw, and reach the purpose that the fixed part of straw with the ground and the separated part of straw with the ground are both smashed well.

[0025] In an embodiment, the first pulverizing unit 3 comprises first pulverizing blades 3.1, which can be suitable pulverizing machine blades such as annular cutting blades, each first pulverizing blade 3.1 is rotatably arranged relative to the support 1, each first pulverizing blade 3.1 is upwardly rotated at a side away from the second pulverizing unit 4, that is, a side of the first pulverizing blade 3.1 at a front side of the moving direction is upwardly rotated, a side of the first pulverizing blade 3.1 at a rear side of the moving direction is downwardly rotated, on the one hand, the first pulverizing blade 3.1 pulverizes the straw part fixed to the ground, on the other hand, the straw part separated from the ground is moved upwardly to facilitate falling into the guide frame 6 at the rear.

[0026] In an embodiment, the support 1 is rotatably connected with a mounting shaft 3.2, the first pulverizing blades 3.1 are mounted on the mounting shaft 3.2, the support 1 is fixed with first motors by screws, each first motor output shaft is drivingly connected with the mounting shaft 3.2, wherein the first motors are suitable in number such as two, a pulley is mounted on the first motor output shaft, the mounting shaft 3.2 is mounted with pulleys at both ends, the first motor output shaft is drivingly connected with the mounting shaft 3.2, in addition, the first motor output shaft can also be fixedly connected with the mounting shaft 3.2 through a shaft coupling, so that the first motor directly drives the mounting shaft 3.2 to rotate, the mounting shaft 3.2 is driven to rotate relative to the support 1 by the operation of the first motor, and then the first pulverizing blades 3.1 are rotated to pulverize the straw.

[0027] In an embodiment, the guide frame 6 is a slope structure inclined upwardly and rearwardly from the rear side of the first pulverizing unit 3, the lower end of the guide frame 6 is adjacent to the first cutting unit, and the upper end of the guide frame 6 is close to the box opening of the placing box 5. During the movement of the support 1 forwardly, the straw on the ground is first located at the lower end of the slope structure, and with the continuous movement of the support 1, the straw continuously accumulated at the lower end of the slope structure pushes the straw at the rear side to move rearwardly until the straw moves into the placing box 5, thereby forming a structure that moves the straw from the ground to the placing box 5 by cooperation of the guide frame 6 and the moving support 1.

[0028] In an embodiment, the guide frame 6 is rotatably connected with the support 1, fasteners 8 for fixing the guide frame 6 and the support 1 are mounted between the guide frame 6 and the support 1, wherein cylindrical heads 9 are mounted at both sides of the upper end of the guide frame 6, circular holes matched with the cylindrical heads 9 are formed in the support 1, so that the guide frame 6 is rotatably connected with the support 1, a support piece is arranged at the middle of the guide frame 6, mounting holes are formed in the support piece, arc-shaped long holes 10 with the circular hole axes as centers are formed in the support 1, the fasteners 8 are bolts, and the fasteners 8 are mounted at the mounting holes and the arc-shaped long holes 10. If the fasteners 8 are tightened, the guide frame 6 and the support 1 are fixed, and if the fasteners 8 are loosened, the guide frame 6 is rotated relative to the support 1, so as to facilitate adjustment of the height of the lower end of the guide frame 6, that is, adjustment of the distance between the lower end of the guide frame 6 and the ground.

[0029] In an embodiment, the guide frame 6 comprises a flat plate 6.1, the fork rods 6.2 are installed at one side of the flat plate 6.1 close to the first crushing unit 3, the cylindrical heads 9, support plates are installed at both sides of the flat plate 6.1, and the lower end of the flat plate 6.1 is welded and fixed with the fork rods 6.2, each fork rod 6.2 is arranged in parallel, and is perpendicular to the axial direction of the installation shaft 3.2, and the ground soil is prevented from moving to the flat plate 6.1 through the fork rods 6.2.

[0030] In an embodiment, the second crushing unit 4 comprises rotating shafts 4.2, the number of the rotating shafts 4.2 is suitable, such as two, each rotating shaft 4.2 is parallel to each other, each rotating shaft 4.2 is rotationally connected with the support frame 1, the rotating directions of the adjacent two rotating shafts 4.2 are opposite, the portions on the upper sides of the two rotating shafts 4.2 are close to each other when rotating, the second crushing blades 4.1 are installed on each rotating shaft 4.2, the second crushing blades 4.1 can be suitable crusher blades, such as annular cutting blades, the second motors are installed on the support frame 1, the output shafts of the second motors are drivingly connected with the rotating shafts 4.2, the number of the second motors is suitable, such as two or four, the driving gears are installed on the output shafts of the second motors, the driven gears are installed at both ends of the rotating shafts 4.2, the output shafts of the second motors are gear drivingly connected with the rotating shafts 4.2, in addition, the output shafts of the second motors can also be fixedly connected with the rotating shafts 4.2 through the shaft couplings, so that the second motors directly drive the rotating shafts 4.2 to rotate, through the operation of the second motors, the rotating shafts 4.2 are driven to rotate relative to the support frame 1, and then the second crushing blades 4.1 are driven to rotate, so that the straws are crushed.

[0031] In an embodiment, among the two rotating shafts 4.2, the height of the rotating shaft 4.2 close to the first crushing unit 3 is higher than the height of the other rotating shaft 4.2, and the rotating shaft 4.2 close to the first crushing unit 3 is located between the other rotating shaft 4.2 and the first crushing unit 3, so as to facilitate the backward movement of the straws placed in the box 5, and facilitate the crushing of the straws.

[0032] In an embodiment, the placing box 5 is rotationally connected with the baffle 11 at the discharge port 7 for closing the discharge port 7, the baffle 11 is rotationally connected with the first rod 12, the first rod 12 is rotationally connected with the second rod 13, the bottom of the placing box 5 is provided with the fixing plate 14 which is welded with the placing box 5, the fixing plate 14 is provided with the through hole, the second rod 13 passes through the through hole and is located at both sides of the fixing plate 14, the second rod 13 is threadedly connected with the fixing block 15 at both sides of the fixing plate 14, the fixing block 15 is two, the caliber size of the discharge port 7 is adjusted by adjusting the fixing block 15 so that the second rod 13 moves in the through hole, if the caliber size of the discharge port 7 is small, the efficiency of the straw moving out of the discharge port 7 can be reduced, so that the straw is placed in the placing box 5 for a longer time, that is, the straw is crushed by the second crushing blade 4.1 for a longer time, so that the straw with a higher crushing degree is obtained, if the caliber size of the discharge port 7 is large, the efficiency of the straw moving out of the discharge port 7 can be improved, so that the straw is placed in the placing box 5 for a shorter time, that is, the straw is crushed by the second crushing blade 4.1 for a shorter time, so that the straw with a lower crushing degree is obtained, so that the caliber size of the discharge port 7 is adjusted to adjust the high and low of the crushing degree of the straw.

[0033] In an embodiment, the bracket 1 comprises the first side plate 1.1, the second side plate 1.2, the fixed rod 1.3 is fixed by screws between the first side plate 1.1 and the second side plate 1.2, the connecting hole 2 is formed at the same side of the first side plate 1.1 and the second side plate 1.2, wherein the first side plate 1.1 and the second side plate 1.2 are rotationally connected with the rotating shaft 4.2 and the mounting shaft 3.2, the first side plate 1.1 and the second side plate 1.2 are bolted with the first motor and the second motor, and the first side plate 1.1 and the second side plate 1.2 are provided with the circular hole and the arc-shaped long hole 10.

[0034] In an embodiment, the surrounding plate 16 in the "C" shape structure is installed between the first side plate 1.1 and the second side plate 1.2, and the surrounding plate 16 cooperates with the first side plate 1.1 and the second side plate 1.2 to form the placing box 5.

[0035] The utility model is described in detail through the specific embodiment and the example, but these are not the limitation to the utility model. The person skilled in the art can also make many deformation and improvement without departing from the principle of the utility model, and these should be regarded as the protection scope of the utility model.

Claims

1. A straw crushing and returning device, comprising a support (1), wherein the support (1) has a connection hole (2) for connecting to a traction device, characterized in that: A first crushing unit (3) for crushing straw is installed below the support (1). A storage box (5) for holding straw is installed behind the support (1). A second crushing unit (4) for crushing straw is installed inside the storage box (5). A guide frame (6) is installed between the first crushing unit (3) and the storage box (5) on the support (1), forming a structure in which the straw is moved from the ground to the storage box (5) through the cooperation of the guide frame (6) and the movable support (1). A discharge port (7) is provided at the bottom of the storage box (5).

2. The straw crushing and returning device according to claim 1, characterized in that: The first crushing unit (3) includes a first crushing blade (3.1), each of the first crushing blades (3.1) is rotatably disposed relative to the support (1), and each of the first crushing blades (3.1) rotates upward on the side away from the second crushing unit (4).

3. The straw crushing and returning device according to claim 1, characterized in that: The guide frame (6) is an inclined structure that slopes upwards and backwards from the rear side of the first crushing unit (3). The lower end of the guide frame (6) is close to the first cutting unit, and the upper end of the guide frame (6) is close to the opening of the placement box (5).

4. The straw crushing and returning device according to claim 1, characterized in that: The guide frame (6) is rotatably connected to the bracket (1), and fasteners (8) for fixing the guide frame (6) and the bracket (1) are installed between the guide frame (6) and the bracket (1).

5. The straw crushing and returning device according to claim 1, characterized in that: The guide frame (6) includes a flat plate (6.1), on which a fork (6.2) is mounted near the side of the first crushing unit (3).

6. The straw crushing and returning device according to claim 1, characterized in that: The second crushing unit (4) includes a rotating shaft (4.2), each of the rotating shafts (4.2) being parallel to each other, each of the rotating shafts (4.2) being rotatably connected to the support (1), the two adjacent rotating shafts (4.2) being in opposite directions, each of the rotating shafts (4.2) being equipped with a second crushing blade (4.1), the support (1) being equipped with a second motor, and the output shaft of each of the second motors being drive-connected to the rotating shaft (4.2).

7. The straw crushing and returning device according to claim 1, characterized in that: The placement box (5) is rotatably connected to a baffle (11) for closing the discharge port (7) at the discharge port (7). The baffle (11) is rotatably connected to the first rod (12), and the first rod (12) is rotatably connected to the second rod (13). A fixing plate (14) is provided at the bottom of the placement box (5). A through hole is opened on the fixing plate (14). The second rod (13) passes through the through hole and is located on both sides of the fixing plate (14). The second rod (13) is threadedly connected to a fixing block (15) on both sides of the fixing plate (14).

8. The straw crushing and returning device according to claim 1, characterized in that: The bracket (1) includes a first side plate (1.1) and a second side plate (1.2). A fixing rod (1.3) is installed between the first side plate (1.1) and the second side plate (1.2). A connecting hole (2) is opened on the same side of the first side plate (1.1) and the second side plate (1.2).

9. A straw crushing and returning device according to claim 2, characterized in that: The bracket (1) is rotatably connected to the mounting shaft (3.2), the mounting shaft (3.2) is equipped with the first crushing blade (3.1), the bracket (1) is equipped with the first motor, and the output shaft of each first motor is connected to the mounting shaft (3.2) for transmission.

10. A straw crushing and returning device according to claim 8, characterized in that: A "C"-shaped enclosure (16) is installed between the first side plate (1.1) and the second side plate (1.2), and the enclosure (16) cooperates with the first side plate (1.1) and the second side plate (1.2) to form a placement box (5).