A corn stalk stubble returning machine
By introducing a lifting mechanism into the corn stalk shredding and returning machine, the problem of blind spots caused by stalk entanglement has been solved, achieving safe and efficient stalk cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHIJIAZHUANG ZHONGZHOU MASCH MFG CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-30
Smart Images

Figure CN224419394U_ABST
Abstract
Description
Technical Field
[0001] The embodiments disclosed herein relate to the field of stubble return machine technology, specifically, to a corn stalk stubble return machine. Background Technology
[0002] The corn stalk shredding and returning machine is an agricultural machine used to process corn stalks. It is mainly used to crush corn stalks and return them to the field to improve soil fertility and soil structure. First, the upright corn stalks are pushed down. The stalks are fed into the rotating blades after being cut, and the stalks are completely cut on the ground. The stalks are then conveyed to the upward conveying mechanism. Under the combined action of the feeding rollers, the stalks are conveyed to the high-speed rotating blades for shredding. Under the combined action of the power and the fixed blades, the stalks are shredded. Finally, the stalk shredding and covering with soil to retain moisture is completed under the operation of the rotating blades.
[0003] However, when corn stalks are too long, too wet, or too dense, they can easily entangle or accumulate inside the machine, causing blockages. For example, if the stalks are not processed promptly after the corn harvest, and remain in the field for too long, they absorb a lot of moisture and become damp and soft, easily tangling around the machine parts. In this case, the user needs to turn off the machine, and then two users lift the machine onto a stool and pull the stalks tangled around the machine out through the bottom opening. While pulling, the blades also need to be manually rotated. Because other parts of the machine are welded in, there are many blind spots when the user is processing the stalks tangled around the machine. If the user reaches in to pull the stalks out, they can easily touch the blades and get cut. Utility Model Content
[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide a corn stalk stubble returning machine, which solves the technical problem in the prior art where some damp stalks get tangled on the machine due to prolonged storage in water, requiring the user to pull the stalks out through the hollowed-out area at the bottom of the machine, resulting in too many blind spots and easy hand injuries.
[0005] According to one aspect, at least one embodiment of this disclosure provides a corn stalk stubble-removing and returning machine, including a body and a transmission mechanism, the transmission mechanism being disposed on the outer wall of the body, and a plurality of blades being fixedly connected to the outer wall of the transmission mechanism, and further comprising:
[0006] A cover, which is disposed above the body of the machine, is used to close the body of the machine;
[0007] An opening and closing mechanism is provided on the top of the machine body and is used to control the opening and closing of the machine body.
[0008] A connecting mechanism is disposed on the outer side wall of the machine body, and the connecting mechanism is used to connect the machine body and the tractor.
[0009] A lifting mechanism is provided on the connecting mechanism and is used to control the lifting and lowering of the cover.
[0010] Preferably, the opening and closing mechanism includes:
[0011] Mounting plates, two of which are fixedly connected to the top of the body;
[0012] The mounting slot is formed on the top of the mounting plate;
[0013] Mounting rod, which is detachably connected to the mounting slot;
[0014] The mounting rod is fixedly connected to two mounting plates, and the tops of the two mounting plates are fixedly connected to the bottom of the cover.
[0015] Preferably, the connecting mechanism includes:
[0016] Fixed columns are fixedly connected to the outer side walls on both sides of the machine body;
[0017] A connecting frame is fixedly connected to the outer wall of each of the fixed columns;
[0018] The connecting plate has two connecting brackets whose ends are away from the fixed column fixedly connected to the outer side wall of the connecting plate.
[0019] A fixing buckle is fixedly connected to the outer side wall of the connecting plate away from the connecting frame.
[0020] Preferably, the lifting mechanism includes:
[0021] A fixing groove is formed on the outer side wall of one side of the connecting plate;
[0022] A transmission seat, which is fixedly connected to the fixed groove;
[0023] Motor 1, which is mounted on top of the transmission base;
[0024] A reciprocating lead screw, which is coaxially connected to the output end of the motor.
[0025] Nut seat, which is threadedly connected to the reciprocating lead screw;
[0026] A support assembly is disposed on the nut seat.
[0027] Preferably, the support component includes:
[0028] The support rod is fixedly connected to the outer side walls on both sides of the nut seat;
[0029] A fixing rod is fixedly connected to the outer side wall of each of the support rods;
[0030] A rotating component is mounted on the fixed rod.
[0031] Preferably, the rotating member includes:
[0032] A rotary cylinder, which is mounted on one of the fixed rods;
[0033] A rotating rod, which is coaxially connected to the output end of the rotary cylinder;
[0034] Two vertical rods are fixedly connected to the outer wall of the rotating rod;
[0035] The fixing plate is fixedly connected to the other end of each of the two vertical rods.
[0036] Preferably, the transmission mechanism includes:
[0037] Motor 2, which is mounted on the outer side wall of one side of the machine body;
[0038] A rotating shaft, which is coaxially connected to the output end of the second motor;
[0039] The blades are fixedly connected to the outer wall of the rotating shaft.
[0040] Furthermore, there is a gap between the cover and the connecting frame.
[0041] Furthermore, there is a gap between the support rod and the connecting frame.
[0042] Furthermore, the two fixing pieces are fixedly connected to the top of the cover.
[0043] The beneficial effects of the embodiments disclosed herein are as follows:
[0044] In this disclosure, when using a stubble-removing machine to remove corn stalks, the lifting mechanism must first be activated to drive the machine cover onto the top of the machine body via an opening and closing mechanism, creating a seal above the machine. After connecting to the tractor via a connecting mechanism, the transmission mechanism is activated to remove stubble from the cornfield. After stubble removal is complete, or if the user finds that the stubble has not been removed, the transmission mechanism can be stopped and the lifting mechanism activated to lift the machine cover away from the machine body. The user can then pull the stalks wrapped around the transmission mechanism outwards. Compared to existing technologies, traditional stubble-removing machines require the user to reach through a perforated area at the bottom to clean the internal stubble, creating blind spots that can lead to hand cuts. The improved stubble-removing machine opens the machine cover via a lifting mechanism, allowing the user to clearly see the position of the blades and the stalks wrapped around them, reducing blind spots and preventing hand cuts due to not being able to see the internal blade distribution while cleaning the stubble. Attached Figure Description
[0045] 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.
[0046] Figure 1 This is a schematic diagram of the overall structure of a corn stalk stubble-removing and returning machine according to one embodiment of the present disclosure;
[0047] Figure 2 This is a schematic diagram of the overall structure of a corn stalk stubble-removing and returning machine from another perspective in one embodiment of this disclosure.
[0048] Figure 3 for Figure 1 A schematic diagram of the structure of the blade, the rotating shaft and the motor in the embodiment;
[0049] Figure 4 for Figure 1 A schematic diagram of the structure of the hood, fixing plate and fixing column in the embodiment;
[0050] Figure 5 for Figure 1 The embodiment is shown in the structural diagram of the rotary tiller shaft, machine body and fixing plate.
[0051] In the diagram: 1. Machine body; 2. Blade; 3. Machine cover; 4. Mounting plate; 5. Mounting slot; 6. Mounting rod; 7. Fixing plate; 8. Fixing column; 9. Connecting frame; 10. Connecting plate; 11. Fixing buckle; 12. Fixing slot; 13. Transmission seat; 14. Motor 1; 15. Reciprocating screw; 16. Nut seat; 17. Support rod; 18. Fixing rod; 19. Rotary cylinder; 20. Rotating rod; 21. Vertical rod; 22. Fixing plate; 23. Motor 2; 24. Rotating shaft; 25. Rotary tillage shaft. Detailed Implementation
[0052] 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.
[0053] 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."
[0054] 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.
[0055] 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.
[0056] 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.
[0057] 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.
[0058] like Figures 1-5 As shown, a corn stalk shredding and returning machine according to an embodiment of the present disclosure is illustrated. It includes a machine body 1 and a transmission mechanism. The transmission mechanism is disposed on the outer wall of the machine body 1. A plurality of blades 2 are fixedly connected to the outer wall of the transmission mechanism. It also includes a cover 3, an opening and closing mechanism, a connecting mechanism, and a lifting mechanism. The cover 3 is disposed above the machine body 1 and is used to close the machine body 1. The opening and closing mechanism is disposed on the top of the machine body 1 and is used to control the opening and closing of the machine body 1. The connecting mechanism is disposed on the outer wall of the machine body 1 and is used to connect the machine body 1 and a tractor. The lifting mechanism is disposed on the connecting mechanism and is used to control the lifting and lowering of the cover 3. A rotary tillage shaft 25 is fixedly connected to the outer wall of the machine body 1.
[0059] First, the machine body 1 needs a transmission mechanism to drive its operation and remove stubble from the corn stalks. The transmission mechanism includes a second motor 23, a rotating shaft 24, and blades 2. The second motor 23 is installed on the outer side wall of one side of the machine body 1. The rotating shaft 24 is coaxially connected to the output end of the second motor 23. Multiple blades 2 are fixedly connected to the outer wall of the rotating shaft 24. When the second motor 23 is started, it drives the rotating shaft 24 to rotate. At this time, the blades 2 on the rotating shaft 24 will also start to rotate. After the machine body 1 is moved to the corn stalks field where stubble needs to be removed, the operation can begin. If the stalks in the field are damp, they are easy to get caught on the blades 2 and become tangled, making it difficult to carry out normal stubble removal. In this case, the second motor 23 needs to be turned off, and the user needs to proceed with the next step.
[0060] The top of the body 1 is equipped with an opening and closing mechanism, which includes a mounting plate 4, a mounting groove 5, a mounting rod 6, and a fixing plate 7. Two mounting plates 4 are fixedly connected to the top of the body 1. The mounting groove 5 is opened on the top of the mounting plate 4. The mounting rod 6 is detachably connected to the mounting groove 5. Two fixing plates 7 are fixedly connected to the top of the mounting rod 6, and the tops of the two fixing plates 7 are fixedly connected to the bottom of the cover 3. Through the mounting groove 5 opened on the top of the body 1, the mounting rod 6 on the cover 3 can be inserted into the mounting groove 5 accordingly to avoid displacement and achieve quick positioning. The connecting mechanism includes a fixing post 8. The machine body 1 has a connecting frame 9, a connecting plate 10, and a fixing buckle 11. The outer side walls on both sides of the machine body 1 are fixedly connected to the fixing columns 8. The outer side wall of each fixing column 8 is fixedly connected to the connecting frame 9. The ends of the two connecting frames 9 away from the fixing columns 8 are fixedly connected to the outer side wall of the connecting plate 10. The fixing buckle 11 is fixedly connected to the outer side wall of the connecting plate 10 away from the connecting frame 9. There is a gap between the machine cover 3 and the connecting frame 9. There is a gap between the support rod 17 and the connecting frame 9. The connecting frame 9 is fixedly connected to the fixing columns 8, which allows the lifting mechanism to be fixed on the connecting plate 10. Then, the lifting mechanism is activated to drive the machine cover 3 to move.
[0061] First, the user moves the machine body 1 to the corn stalk field. Then, by starting the lifting mechanism, the machine cover 3 is installed on top of the machine body 1 in conjunction with the opening and closing mechanism. The lifting mechanism includes a fixed groove 12, a transmission seat 13, a motor 14, a reciprocating screw 15, a nut seat 16, and a support assembly. The fixed groove 12 is opened on the outer side wall of the connecting plate 10. The transmission seat 13 is fixedly connected in the fixed groove 12. The motor 14 is installed on the top of the transmission seat 13. The reciprocating screw 15 is coaxially connected to the output end of the motor 14. The nut seat 16 is threadedly connected to the reciprocating screw 15. The support assembly is set on the nut seat 16. By starting the motor 14, the reciprocating screw 15 is driven to rotate. At this time, the nut seat 16 threadedly connected to the reciprocating screw 15 will begin to slide up and down.
[0062] The sliding mechanism requires the use of a support assembly, which includes a support rod 17, a fixed rod 18, and a rotating component. The outer walls of both sides of the nut seat 16 are fixedly connected to the support rod 17, and the outer wall of each support rod 17 is fixedly connected to the fixed rod 18. The rotating component is mounted on the fixed rod 18 and includes a rotary cylinder 19, a rotating rod 20, vertical rods 21, and a fixing plate 22. The rotary cylinder 19 is mounted on one of the fixed rods 18. The rotating rod 20 is coaxially connected to the output end of the rotary cylinder 19. Two vertical rods 21 are fixedly connected to the outer wall of the rotating rod 20, and the other ends of both vertical rods 21 are fixedly connected to fixing plates 22. The two fixing plates 22 are connected to the machine cover. The top of the cover 3 is fixedly connected. Since the support rod 17 is fixedly connected to the nut seat 16, and the support rod 17 is also fixedly connected to the fixed rod 18, when the nut seat 16 slides up and down, it can drive the fixed piece 22 connected to the fixed rod 18. Since the fixed piece 22 is fixedly connected to the cover 3, the cover 3 also slides when it slides. When the cover 3 is away from the machine body 1, the rotary cylinder 19 can be activated. The rotary cylinder 19 drives the rotating rod 20 to rotate, and then the cover 3 will be rotated to rotate 90 degrees, so that the top of the machine body 1 is in an open state. At this time, the user can easily pull out the straw wrapped inside the machine body 1 and expand the field of vision.
[0063] Working Principle: When using the stubble-removing machine to remove corn stalks from a field, the user first moves the machine body 1 to the field and connects the fixing buckle 11 to the tractor from the outside. Then, the second motor 23 is started, which drives the blades 2 to remove the stubble. Because some of the stalks contain moisture and are damp, the stalks will become entangled on the blades 2 after they come into contact with the stalks, making it difficult to remove them. At this point, the user needs to control the tractor, turn off the second motor 23, and start the first motor 14. The first motor 14 will lift the machine cover 3, causing the mounting rod 6 to move upward from the mounting slot 5. Then, when the nut seat 16 reaches its highest position, the machine can be started. The rotary cylinder 19 rotates the cover 3 90 degrees, opening the top of the machine body 1. The user can then observe where the straw is tangled and remove it. After observation, the motor 23 can be started to rotate the blade 2 to the unobserved side and pull out the tangled straw. While the motor 23 is rotating, the user's hand must not be inserted into the machine body 1. The user can only insert their hand to pull out the straw after the motor 23 is turned off. After cleaning, the rotary cylinder 19 can be started to rotate the cover 3 back to its initial state. Then, the motor 14 is started to lower the cover 3 until the mounting rod 6 is inserted into the mounting slot 5. The stubble removal operation in the corn stalk field can then continue.
[0064] 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 corn stalk stubble cleaning and field returning machine, comprising a machine body (1) and a transmission mechanism, the transmission mechanism is arranged on the outer wall of the machine body (1), and a plurality of blades (2) are fixedly connected to the outer wall of the transmission mechanism, characterized in that, Also includes: A cover (3) is disposed above the body (1) and is used to close the body (1); An opening and closing mechanism is provided on the top of the body (1) and is used to control the opening and closing of the body (1). A connecting mechanism is provided on the outer side wall of the body (1) and is used to connect the body (1) and the tractor. A lifting mechanism is provided on the connecting mechanism and is used to control the lifting of the cover (3).
2. The corn stalks mulching and returning machine according to claim 1, characterized in that, The opening and closing mechanism includes: Mounting plate (4), two mounting plates (4) are fixedly connected to the top of the body (1); Mounting slot (5), which is formed on the top of the mounting plate (4); Mounting rod (6), which is detachably connected to the mounting groove (5); The top of the mounting rod (6) is fixedly connected to two of the fixing plates (7), and the tops of the two fixing plates (7) are fixedly connected to the bottom of the cover (3).
3. A corn stalk stubble returning machine according to claim 2, characterized in that, The connecting mechanism includes: Fixed columns (8) are fixedly connected to the outer side walls on both sides of the body (1). The connecting frame (9) is fixedly connected to the outer wall of each of the fixed columns (8); The connecting plate (10) has two connecting brackets (9) fixedly connected at one end away from the fixed column (8) to the outer wall of the connecting plate (10); A fixing buckle (11) is fixedly connected to the outer side wall of the connecting plate (10) away from the connecting frame (9).
4. A corn stalk stubble returning machine according to claim 3, characterized in that, The lifting mechanism includes: A fixing groove (12) is formed on the outer side wall of the connecting plate (10); Transmission seat (13), which is fixedly connected in the fixing groove (12); Motor 1 (14), which is mounted on top of the transmission base (13); A reciprocating lead screw (15) is coaxially connected to the output end of the motor (14); Nut seat (16), which is threadedly connected to the reciprocating lead screw (15); A support assembly is disposed on the nut seat (16).
5. A corn stalk stubble returning machine according to claim 4, characterized in that, The support components include: The support rod (17) is fixedly connected to the outer side walls of both sides of the nut seat (16); The fixing rod (18) is fixedly connected to the outer side wall of each of the support rods (17); A rotating component is mounted on the fixed rod (18).
6. A corn stalk stubble-returning machine according to claim 5, characterized in that, The rotating component includes: A rotary cylinder (19) is mounted on one of the fixed rods (18); Rotary rod (20), which is coaxially connected to the output end of the rotary cylinder (19); Vertical rod (21), two vertical rods (21) are fixedly connected to the outer wall of the rotating rod (20); Fixing plate (22), the other end of each of the two vertical rods (21) is fixedly connected to the fixing plate (22).
7. A corn stalk stubble returning machine according to claim 6, characterized in that, The transmission mechanism includes: Motor 2 (23), said motor 2 (23) is mounted on the outer side wall of one side of the body (1); A rotating shaft (24) is coaxially connected to the output end of the second motor (23); The blade (2) is fixedly connected to the outer wall of the rotating shaft (24).
8. A corn stalk stubble returning machine according to claim 7, characterized in that, There is a gap between the cover (3) and the connecting frame (9).
9. A corn stalk stubble returning machine according to claim 8, characterized in that, There is a gap between the support rod (17) and the connecting frame (9).
10. A corn stalk stubble returning machine according to claim 9, characterized in that, The two fixing pieces (22) are fixedly connected to the top of the cover (3).