Straw returning machine

Abstract

The invention discloses a straw returning machine and relates to the technical field of straw returning machines, the straw returning machine comprises a traction frame, a rotating rod, a containing box, a conveying belt and a driving part, the rotating rod is rotationally connected to the traction frame, a plurality of cutting units are fixedly installed on the rotating rod, and specifically, the cutting units are distributed in a linear array in the extending direction of a rotating shaft; each cutting unit comprises a plurality of blades which are distributed along the circumferential surface of the rotating rod in a circumferential array manner; the containing box is fixedly installed on the traction frame, a feeding port of the containing box is completely opened, and a discharging port of the containing box is closed, so that each cutting unit on the rotating rod conveys a part of cut and crushed straw into the containing box through the conveying belt to be temporarily stored; the discharging port of the containing box is opened, and the feeding port is closed, so that the conveying belt conveys the crushed straw in the storage box to the barren area, and therefore the excessive crushed straw in the fertile land can be used on the barren land, and meanwhile the straw crushing work of the land is not delayed.

Description

Technical Field

[0001] The present invention relates to the technical field of straw returning machines, and specifically relates to a straw returning machine. Background Art

[0002] As one of the core contents of conservation tillage technology, straw returning has an important positive impact on improving soil conditions, increasing crop yields, and storing soil organic matter and organic carbon, as well as environmental protection. After the straw is crushed, the crushed straw is then applied to the field by machinery to increase soil fertility and improve soil productivity.

[0003] The patent with the publication number CN222564470U discloses a straw crushing and returning machine for agriculture, which includes a housing, and also includes: a crushing component arranged inside the housing, the crushing component includes a motor fixed on one side of the housing, a driving wheel is fixedly connected to the output end of the motor, a crushing member is arranged on one side of the driving wheel, a transmission wheel is meshed and connected to the outside of the driving wheel, a rotating rod is fixedly connected to the inner ring of the transmission wheel, and a driven wheel is meshed and connected to the outside of the transmission wheel. The straw crushing and returning machine for agriculture provided by the present invention solves the problems that after the existing straw crushing and returning machine crushes the straw, a large amount of straw will accumulate on the soil surface, the crushed straw cannot be fully mixed with the soil, affecting the straw returning effect, and the dust generated during straw crushing cannot be treated, resulting in dust pollution.

[0004] The prior art such as the above-mentioned patent can make the crushed straw fully mixed with the land. However, in a large area of land, part of the land is fertile, with thick and large amounts of straw, while another part of the land is barren with less straw. In such a case, the prior art cannot collect a part of the straw crushed in the fertile land and then discharge it until the machine reaches the barren land. Summary of the Invention

[0005] The purpose of the present invention is to provide a straw returning machine to solve the deficiency in the above prior art that it is impossible to collect a part of the straw crushed in the fertile land and then discharge it until the machine reaches the barren land.

[0006] To achieve the above object, the present invention provides the following technical solution: A straw returning machine, including a towing frame, further including: a rotating rod, which is rotatably connected to the towing frame, and a plurality of cutting units are fixedly installed thereon; a receiving box, which is fixedly installed on the towing frame, has a feed inlet on one side and a first baffle is slidably connected to the side of the feed inlet, and has a discharge outlet on the opposite side and a second baffle is slidably connected to the side of the discharge outlet; a conveyor belt, which is arranged on the towing frame through a transmission assembly, and passes through the feed inlet and the discharge outlet of the receiving box; a driving member, which is used to drive the rotating rod to rotate; when the towing frame passes through a field with more straw, the second baffle is driven by the driving assembly to slide to cover the discharge outlet while the feed inlet is completely open, and when the towing frame passes through a field with less straw, the first baffle is driven by the driving assembly to slide to cover the feed inlet while the discharge outlet is completely open.

[0007] Further, the transmission assembly includes a driving roller, a driven roller and a chain. The driving roller and the driven roller are both rotatably connected to the towing frame, and the chain is arranged in a transmission manner between the rotating rod and the driving roller.

[0008] Further, the driving assembly includes a first motor, a bidirectional telescopic rod, a first connecting rod and a second connecting rod. The first connecting rod is fixedly connected to the first baffle, the second connecting rod is fixedly connected to the second baffle, the sleeve of the bidirectional telescopic rod is rotatably connected to the receiving box through a rotating shaft, one inner rod of the bidirectional telescopic rod is rotatably connected to the first connecting rod, the other inner rod is rotatably connected to the second connecting rod, both inner rods of the bidirectional telescopic rod are slidably connected to the sleeve, the first motor is fixedly installed on the receiving box, and the output shaft of the first motor is in transmission connection with the rotating shaft of the bidirectional telescopic rod.

[0009] Further, the driving member is a second motor, the second motor is fixedly installed on the towing frame, and the output shaft of the second motor is in transmission connection with the rotating rod.

[0010] Further, two swing rods are rotatably connected to the towing frame, and the same pressure roller is rotatably connected to the two swing rods. A plurality of spherical protrusions are arranged on the pressure roller.

[0011] Further, two rotating rollers are rotatably connected to the receiving box, one rotating roller is rotatably connected to the feed inlet of the receiving box, the other rotating roller is rotatably connected to the discharge outlet of the receiving box, and the conveyor belt is in transmission connection with the two rotating rollers.

[0012] Further, the feed inlet of the receiving box is close to the top of the receiving box, and the discharge outlet of the receiving box is close to the bottom of the receiving box.

[0013] Further, the cutting units are arranged in a linear array along the extension direction of the rotating shaft, and each cutting unit includes a plurality of blades arranged in a circumferential array along the circumferential surface of the rotating rod.

[0014] Compared with the prior art, for a straw returning machine provided by the present invention, during the process that the towing frame passes through the fertile area of the land, the feeding port of the accommodating box is completely open while the discharging port is closed, so that each cutting unit on the rotating rod transports a part of the cut and broken straw into the accommodating box through the conveyor belt for temporary storage. When the towing frame passes through the barren area of the land, the discharging port of the accommodating box is opened while the feeding port is closed, causing the conveyor belt to transport the broken straw in the storage box to the barren area. In this way, the extra broken straw in the fertile land can be distributed to the barren land, and at the same time, the straw breaking work of the land is not delayed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of the device provided by the embodiment of the present invention;

[0017] Figure 2 It is a schematic diagram of the structure of the driving component provided by the embodiment of the present invention;

[0018] Figure 3 It is a schematic diagram of the structure with the feeding port open and the discharging port closed provided by the embodiment of the present invention;

[0019] Figure 4 It is a schematic diagram of the structure with the feeding port closed and the discharging port open provided by the embodiment of the present invention;

[0020] Figure 5 It is a schematic diagram of the transmission direction of the broken straw provided by the embodiment of the present invention;

[0021] Figure 6 For the embodiment of the present invention Figure 2 Schematic diagram of a partial device structure.

[0022] Description of the reference numerals:

[0023] 1. Towing frame; 11. Swing rod; 111. Pressing roller; 2. Rotating rod; 21. Blade; 3. Accommodating box; 31. Feeding port; 311. First baffle; 32. Discharging port; 321. Second baffle; 33. Rotating roller; 4. Conveyor belt; 5. Transmission component; 51. Driving roller; 52. Driven roller; 53. Chain; 6. Driving component; 61. First motor; 62. Bidirectional telescopic rod; 63. First connecting rod; 64. Second connecting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] Please refer to Figures 1-6 , a straw returning machine provided by an embodiment of the present invention includes a towing frame 1, a rotating rod 2, a receiving box 3, a conveyor belt 4, and a driving member. The rotating rod 2 is rotatably connected to the towing frame 1, and a plurality of cutting units are fixedly installed on the rotating rod 2. Specifically, each cutting unit is linearly arranged in an array along the extension direction of the rotating shaft, and each cutting unit includes a plurality of blades 21 arranged in a circumferential array along the circumferential surface of the rotating rod 2; the receiving box 3 is fixedly installed on the towing frame 1, a feeding port 31 is opened on one side of the receiving box 3, and a first baffle 311 is slidably connected to one side of the feeding port 31. An outlet 32 is opened on the opposite side of the receiving box 3, and a second baffle 321 is slidably connected to one side of the outlet 32. Specifically, the feeding port 31 of the receiving box 3 is close to the top of the receiving box 3, and the outlet 32 of the receiving box 3 is close to the bottom of the receiving box 3; the conveyor belt 4 is driven and arranged on the towing frame 1 through a transmission assembly 5, and the conveyor belt 4 passes through the feeding port 31 and the outlet 32 of the receiving box 3; the driving member is used to drive the rotating rod 2 to rotate. Specifically, the driving member is a second motor (not shown in the figure), the second motor is fixedly installed on the towing frame 1, and the output shaft of the second motor is drivingly connected to the rotating rod 2; when the towing frame 1 passes through a field with more straw, the second baffle 321 is driven by a driving assembly 6 to slide to cover the outlet 32 while the feeding port 31 is completely open. When the towing frame 1 passes through a field with less straw, the first baffle 311 is driven by the driving assembly 6 to slide to cover the feeding port 31 while the outlet 32 is completely open.

[0026] The transmission assembly 5 includes a driving roller 51, a driven roller 52, and a chain 53. The driving roller 51 and the driven roller 52 are both rotatably connected to the towing frame 1, and the chain 53 is drivingly arranged between the rotating rod 2 and the driving roller 51; the driving assembly 6 includes a first motor 61, a bidirectional telescopic rod 62, a first connecting rod 63, and a second connecting rod 64. The first connecting rod 63 is fixedly connected to the first baffle 311, the second connecting rod 64 is fixedly connected to the second baffle 321, the sleeve of the bidirectional telescopic rod 62 is rotatably connected to the receiving box 3 through a rotating shaft, one inner rod of the bidirectional telescopic rod 62 is rotatably connected to the first connecting rod 63, the other inner rod is rotatably connected to the second connecting rod 64, both inner rods of the bidirectional telescopic rod 62 are slidably connected to the sleeve, the first motor 61 is fixedly installed on the receiving box 3, and the output shaft of the first motor 61 is drivingly connected to the rotating shaft of the bidirectional telescopic rod 62.

[0027] Working principle: First, the operator drives the vehicle to pull the traction frame 1 to move (multiple wheels are rotatably connected to the bottom of the traction frame 1 to provide good support for the traction frame 1 and enable the traction frame 1 to move on the land. The wheels are prior art and will not be elaborated here). Before approaching the area with more fertile land, the operator starts the second motor. The activation of the second motor can drive the rotating rod 2 to rotate, and the rotation of the rotating rod 2 can drive each blade 21 on the rotating rod 2 to move. In this way, during the process of the vehicle passing through the fertile land area, the rotation of the rotating rod 2 causes the blades 21 on the rotating rod 2 to cut and crush the straw. Part of the cut straw will fall to the ground, and part of the crushed straw will fall onto the conveyor belt 4. Since the rotation of the rotating rod 2 can drive the driving roller 51 to rotate through the chain 53 (the chain 53 is arranged at the position close to the end of the driving roller 51 and the rotating rod 2), the rotation of the driving roller 51 can make the conveyor belt 4 move, and the movement of the conveyor belt 4 can further make the driven roller 52 rotate. During this process, the discharge port 32 of the storage box 3 is covered by the second baffle 321 while the feed port 31 of the storage box 3 is completely open. At this time, the conveyor belt 4 transports the straw that has fallen onto it through the feed port 31 into the interior of the storage box 3. Since the feed port 31 is higher than the driving roller 51 relative to the traction frame 1, there is a process of climbing a slope when the conveyor belt 4 drives the straw towards the feed port 31. However, there is friction between the straw and the conveyor belt 4, which enables the straw to be driven into the storage box 3. And since the discharge port 32 is lower than the feed port 31, there is a process of going downhill when the conveyor belt 4 moves from the feed port 31 to the discharge port 32. However, the second baffle 321 covers the discharge port 32, causing the straw to accumulate inside the storage box 3 (since there is a gap between the second baffle 321 and the conveyor belt 4 when the second baffle 321 covers the discharge port 32, preventing the second baffle 321 from obstructing the movement of the conveyor belt 4 and preventing friction between the second baffle 321 and the conveyor belt 4 from causing damage to both). In this way, a relatively large amount of crushed straw accumulates inside the storage box 3.

[0028] When the vehicle approaches the barren land, the operator starts the first motor 61. The output shaft of the first motor 61 (the first motor 61 is a reduction motor and has a self-locking function, and its model is the S series reducer) can drive the double telescopic rod 62 to rotate. During the rotation of the double telescopic rod 62, one of the inner rods is rotatably connected to the first connecting rod 63. And because the first baffle 311 is slidably connected to the receiving box 3 and the first connecting rod 63 is fixedly connected to the first baffle 311, so one of the inner rods of the double telescopic rod 62 can drive the first connecting rod 63 to move and then drive the first baffle 311 to approach the feed port 31 until it covers the feed port 31. Since the other inner rod of the double telescopic rod 62 is rotatably connected to the second connecting rod 64, and the second connecting rod 64 is fixedly connected to the second baffle 321, so on the basis that the first baffle 311 moves to cover the feed port 31, the other inner rod of the double telescopic rod 62 can drive the second baffle 321 away from the discharge port 32, so that the discharge port 32 can be completely opened. Since the conveyor belt 4 is always moving, the conveyor belt 4 can slowly transport the crushed straw stored inside the receiving box 3. During the process of the conveyor belt 4 transporting the crushed straw out of the discharge port 32, the crushed straw will fall to the ground. During this process, the second motor is also required to drive the rotating rod 2 to rotate. Then the rotating rod 2 drives the driving roller 51 to rotate through the chain 53. The rotation of the driving roller 51 makes the conveyor belt 4 drive. There is a small amount of straw on the barren land, and the multiple blades 21 on the rotating rod 2 can also cut this part of the straw. The cut straw on the barren land is mixed with the straw transported out of the receiving box 3, increasing the amount of crushed straw on the barren land and improving the soil quality of the barren land in the coming year. Since the amount of straw on the barren land is very small, almost all of it will directly fall to the ground after being cut. Even if a very small part falls on the conveyor belt 4, it will be blocked by the first baffle 311 and will not enter the receiving box 3 again; in addition, it is worth mentioning that when to enter the barren land from the fertile land needs to be comprehensively determined according to multiple factors such as the storage capacity of the receiving box 3 and the distance between the barren land and the fertile land.

[0029] A straw returning machine provided by the present invention. During the process of the towing frame 1 passing through the fertile land area, the feed port 31 of the receiving box 3 is completely opened and the discharge port 32 is closed, so that each cutting unit on the rotating rod 2 transports a part of the cut and crushed straw into the receiving box 3 through the conveyor belt 4 for temporary storage. When the towing frame 1 passes through the barren land area, the discharge port 32 of the receiving box 3 is opened and the feed port 31 is closed, causing the conveyor belt 4 to transport the crushed straw in the storage box to the barren area. In this way, the extra crushed straw in the fertile land can be distributed to the barren land, and at the same time, the straw crushing work of the land is not delayed.

[0030] Among them, two rollers 33 are rotatably connected to the accommodating box 3. One of the rollers 33 is rotatably connected to the feed inlet 31 of the accommodating box 3, and the other roller 33 is rotatably connected to the discharge outlet 32 of the accommodating box 3. The conveyor belt 4 is drivingly connected to the two rollers 33. On the one hand, the two rollers 33 rotatably connected to the feed inlet 31 and the discharge outlet 32 of the accommodating box 3 can play a role in guiding the conveyor belt 4, so that when the accommodating box 3 passes through a fertile land with more straw, a part of the straw can fall onto the conveyor belt 4, and the conveyor belt 4 drives the straw into the accommodating box 3 with a climbing process. On the other hand, the other rotating rod 2 rotatably connected to the discharge outlet 32 makes the straw in the accommodating box 3 easy to be transported out of the accommodating box 3 when the feed inlet 31 moves towards the discharge outlet 32 with a downhill process; in addition, the presence of the two rotating rods 2 prevents the conveyor belt 4 from directly contacting the accommodating box 3 during the process of transporting the straw, thus avoiding frictional damage to the conveyor belt 4.

[0031] Among them, two swing rods 11 are rotatably connected to the towing frame 1. The same pressure roller 111 is rotatably connected to the two swing rods 11. A plurality of spherical protrusions are provided on the pressure roller 111. The movement of the towing frame 1 can drive the two swing rods 11 to move, and the movement of the two swing rods 11 pulls the pressure roller 111 to move. The pressure roller 111 can roll on the ground. And because the two swing rods 11 are rotatably connected to the towing frame 1, the pressure roller 111 can change the angle with the towing frame 1 according to the terrain to adapt to different terrains. During the process of passing through a piece of land, first the rotating rod 2 drives the blade 21 to cut the straw, and finally the pressure roller 111 presses the ground and the straw so that the straw can fully enter the ground, and the plurality of protrusions on the pressure roller 111 can cause the straw and the ground to be squeezed again so that the straw can fully enter the ground.

[0032] In another embodiment provided by the present invention, the transmission assembly 5 includes a driving roller 51, a driven roller 52 and a driving motor. The driving roller 51 and the driven roller 52 are both rotatably connected to the traction frame 1, and the driving motor is fixedly installed on the traction frame 1. The output shaft of the driving motor drives the driving roller 51 to rotate. In this case, the rotation of the output shaft of the driving motor can change the transmission direction of the conveyor belt 4. For example, when the amount of straw in the land is only enough for the use of this piece of land, the rotating rod 2 rotates to drive each blade 21 to rotate, thereby cutting the straw. After cutting, some straws fall onto the conveyor belt 4. The driving motor drives the driving roller 51 to drive the conveyor belt 4 to be transmitted from the discharge port 32 to the feed port 31, so that the straw falling on the conveyor belt 4 can directly fall onto the ground, avoiding the accumulation of straw on the conveyor belt 4. When passing through fertile or barren areas of the land, the driving motor drives the driving roller 51 to rotate so that the conveyor belt 4 can be transmitted from the feed port 31 to the discharge port 32; in addition, it is worth mentioning that the operator can observe the amount of straw on a piece of land by himself to judge the fertility of the land, or can also judge through sensors. For example, there is more straw on a fertile piece of land, and the straw will frequently touch this sensor during the process of passing through this area, while the frequency of the sensor being touched drops significantly in the area with less straw (the sensor is a prior art and will not be elaborated here). In this way, it can also be judged whether the land is fertile, and the specific needs should be judged according to the actual work.

[0033] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A straw returning machine, including a towing frame (1), characterized in that, Also includes: A rotating rod (2) is rotatably connected to the traction frame (1) and has a plurality of cutting units fixedly mounted thereon; A containing box (3) is fixedly mounted on the traction frame (1), one side of which is provided with a feed inlet (31) and a first baffle (311) is slidably connected to the side of the feed inlet (31), and the other side opposite thereto is provided with a discharge outlet (32) and a second baffle (321) is slidably connected to the side of the discharge outlet (32); A conveyor belt (4) is arranged on the traction frame (1) through a transmission assembly (5) and passes through a feed inlet (31) and a discharge outlet (32) of the containing box (3); A driving member, used for driving the rotating rod (2) to rotate; When the traction frame (1) passes through a field with a lot of straw, the second baffle (321) is driven by the drive assembly (6) to slide to cover the discharge port (32) and the feed port (31) is completely open; when the traction frame (1) passes through a field with a lot of straw, the first baffle (311) is driven by the drive assembly (6) to slide to cover the feed port (31) and the discharge port (32) is completely open.

2. The straw returning machine according to claim 1, characterized in that, The transmission assembly (5) comprises a driving roller (51), a driven roller (52) and a chain (53); the driving roller (51) and the driven roller (52) are both rotatably connected to the traction frame (1); and the chain (53) is transmission-arranged between the rotating rod (2) and the driving roller (51).

3. A straw returning machine according to claim 1, characterized in that, The driving assembly (6) comprises a first motor (61), a bidirectional telescopic rod (62), a first connecting rod (63) and a second connecting rod (64); the first connecting rod (63) is fixedly connected to the first baffle (311); the second connecting rod (64) is fixedly connected to the second baffle (321); the sleeve of the bidirectional telescopic rod (62) is rotatably connected to the receiving box (3) via a rotating shaft; one of the inner rods of the bidirectional telescopic rod (62) is rotatably connected to the first connecting rod (63); the other inner rod is rotatably connected to the second connecting rod (64); both inner rods of the bidirectional telescopic rod (62) are slidably connected to the sleeve; the first motor (61) is fixedly mounted on the receiving box (3); and the output shaft of the first motor (61) is drivingly connected to the rotating shaft of the bidirectional telescopic rod.

4. A straw returning machine according to claim 1, characterized in that, The driving member is a second motor, which is fixedly mounted on the traction frame (1), and the output shaft of the second motor is drivingly connected to the rotating rod (2).

5. The straw returning machine according to claim 1, characterized in that, The traction frame (1) is rotatably connected to two swing rods (11), and the two swing rods (11) are rotatably connected to a same pressing roller (111), and the pressing roller (111) is provided with a plurality of spherical protrusions.

6. A straw returning machine according to claim 1, characterized in that, The containing box (3) is rotatably connected to two rollers (33), one of which is rotatably connected to a feed port (31) of the containing box (3), and the other is rotatably connected to a discharge port (32) of the containing box (3), and a conveyor belt is transmission-connected to the two rollers (33).

7. A straw returning machine according to claim 1, characterized in that, The feed port (31) of the containing box (3) is close to the top of the containing box (3), and the discharge port (32) of the containing box (3) is close to the bottom of the containing box (3).

8. A straw returning machine according to claim 1, characterized in that, Each of the cutting units is linearly arrayed along the extending direction of the rotating shaft, and each cutting unit includes a plurality of blades (21) that are circumferentially arrayed along the circumferential surface of the rotating rod (2).

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