An adjustable farmland mulching machine
By introducing a combination of centrifugal control components and elastic locking components into the laminating machine, the problem of inertial rotation of the film winder when the laminating machine suddenly stops is solved, achieving stable film winding and enhancing the stability of the equipment and the integrity of the film.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGQIU ACADEMY OF AGRI & FORESTRY
- Filing Date
- 2025-09-09
- Publication Date
- 2026-07-24
AI Technical Summary
When existing laminating machines suddenly stop, the film winding unit cannot sense the stop and continues to rotate, causing the film to be overstretched or torn, affecting the film's physical properties.
An adjustable farmland mulching machine was designed. The centrifugal force generated by the centrifugal control component acts on the elastic locking component to buffer the rotation of the roll until it is completely locked, preventing the roll from rotating accidentally due to inertia or external force.
It effectively prevents the roll from rotating unexpectedly due to inertia or external force when the laminating machine stops, enhances the stability of the equipment, and avoids the film being overstretched or torn.
Smart Images

Figure CN224538975U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of agricultural mulching equipment, specifically an adjustable farmland mulching machine. Background Technology
[0002] A mulching machine is a type of machinery used in agricultural production, primarily for laying and covering mulch film. This machine plays a vital role in modern agriculture, significantly improving agricultural production efficiency, enhancing the crop growing environment, reducing manual labor intensity, and promoting agricultural modernization. A mulching machine typically consists of a furrow opener, film pressing rollers, a soil covering device, and a frame. Some mulching machines are also equipped with rotary tillers, fertilization devices, and spraying devices to achieve multi-functionality.
[0003] Existing mulching machines achieve soil mulching by controlling the overall movement of the machine and coordinating with other components. However, if the machine suddenly stops, the film winding unit cannot sense the stop and control the tension. As a result, due to inertia, the winding unit continues to rotate when the machine stops, potentially causing the film to be overstretched or torn. In this situation, the physical properties of the film may be affected, or even breakage may occur. Utility Model Content
[0004] The purpose of this invention is to provide an adjustable farmland mulching machine to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] An adjustable agricultural mulching machine includes a frame and rollers rotatably mounted on the frame to drive the frame to move, and a roll mounted on the frame for winding up the film.
[0007] The frame is equipped with a centrifugal control component connected to the roller. When the roller stops suddenly or moves, the centrifugal force generated by the centrifugal control component can act on the elastic locking component on the frame through the transmission component, and buffer the rotation of the drum when locked.
[0008] The adjustable farmland mulching machine as described above: the centrifugal control component includes a movable shaft rotatably mounted on the frame, the movable shaft being connected to the rotating shaft of the roller via a first belt, a rotating plate being fixedly arranged radially along the movable shaft, and a through groove being formed on the rotating plate, a slider being slidably arranged in the through groove, a connecting rod being hinged on the slider, and the end of the connecting rod away from the slider being connected to the transmission component;
[0009] It also includes a first spring, which is disposed in the through groove. One end of the first spring abuts against the slider, and the other end abuts against the inner end of the through groove.
[0010] The adjustable farmland mulching machine as described above: the transmission assembly includes a support shaft arranged axially along the movable shaft and fixed to the frame, a sleeve and a connecting ring respectively arranged along the axial direction of the support shaft, the sleeve and the connecting ring being rotatably connected, the sleeve being hinged to the end of the connecting rod away from the slider, a connecting plate being fixedly sleeved on the connecting ring, and the end of the connecting plate away from the connecting ring being connected to a rotating component arranged on the frame.
[0011] The adjustable farmland mulching machine as described above: the rotating component includes a drive shaft rotatably mounted on the frame, the drive shaft having a threaded groove, and the connecting plate being sleeved on the inner ring of the drive shaft and having a first ball bearing adapted to the threaded groove.
[0012] It also includes symmetrically arranged receiving shafts, which are rotatably mounted on the frame via mounting brackets. The receiving shafts are connected to the drive shaft via a second belt, and the receiving shafts are provided with toothed rings that drive the elastic locking member to perform locking operations.
[0013] As described above, the adjustable farmland mulching machine has multiple sets of elastic locking members arranged radially along the rotating shafts at both ends of the drum, and each set can be inserted into multiple locking holes distributed circumferentially along the rotating shaft.
[0014] As described above, the adjustable farmland mulching machine includes an elastic locking component comprising a lead screw rotatably mounted on the mounting frame. One end of the lead screw is provided with a bevel gear capable of meshing with the gear ring, and the other end is threadedly connected with a threaded sleeve capable of slidingly connecting with the mounting frame. A cylindrical insertion groove is formed in the end of the threaded sleeve away from the lead screw, and a telescopic buffer capable of being inserted into the locking hole is provided in the cylindrical insertion groove.
[0015] As described above, the adjustable farmland mulching machine includes a telescopic buffer component with one end inserted into the cylindrical insertion groove and slidably connected to it, and the other end inserted into the locking hole and movably provided with a second ball bearing.
[0016] It also includes a second spring, which is disposed in the cylindrical insertion groove. One end of the second spring abuts against the inner end of the cylindrical insertion groove, and the other end abuts against the insertion rod.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] When the frame stops moving, the rotation of the rollers stops, causing the centrifugal force generated by the centrifugal control component to gradually disappear. This force then acts on the elastic locking component through the transmission assembly. During the locking process, the elastic locking component deforms initially to buffer the winding of the roll until it is fully inserted into the roll, locking the roll's rotation. This effectively prevents the roll from rotating unexpectedly due to inertia or other external forces when the laminating machine stops moving, thus enhancing the stability of the equipment. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of an adjustable farmland mulching machine.
[0020] Figure 2 This is a schematic diagram of the rollers and centrifugal control components in an adjustable farmland mulching machine.
[0021] Figure 3 This is a schematic diagram of the centrifugal control components and the roller in an adjustable farmland mulching machine.
[0022] Figure 4 This is an exploded view of the centrifugal control component in an adjustable farmland mulching machine.
[0023] Figure 5 This is a schematic diagram of the structure of the roller and rotating parts in an adjustable farmland mulching machine.
[0024] Figure 6 This is a schematic diagram of the structure of the roller and elastic locking component in an adjustable farmland mulching machine.
[0025] Figure 7 This is an exploded view of the elastic locking component in an adjustable farmland mulching machine.
[0026] In the diagram: 1. Frame; 2. Roller; 3. First belt; 4. Movable shaft; 5. Rotating plate; 6. First spring; 7. Slider; 8. Connecting rod; 9. Sleeve; 10. Connecting ring; 1001. Strip block; 11. Support shaft; 1101. Strip groove; 12. Connecting plate; 1201. First ball bearing; 13. Drive shaft; 1301. Threaded groove; 14. Drum; 1401. Locking hole; 15. Mounting bracket; 16. Receiving shaft; 17. Gear ring; 18. Lead screw; 19. Bevel gear; 20. Threaded sleeve; 21. Second spring; 22. Insert rod; 23. Second ball bearing; 24. Connecting clamp; 25. Second belt. Detailed Implementation
[0027] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.
[0028] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.
[0029] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented even without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.
[0030] Please see Figures 1 to 7 In this embodiment of the utility model, an adjustable farmland mulching machine includes a frame 1 and rollers 2 rotatably mounted on the frame 1 to drive the frame 1 to move, and also includes a roll 14 mounted on the frame 1 for winding up the film.
[0031] The frame 1 is provided with a centrifugal control component connected to the roller 2. When the roller 2 stops suddenly or moves, the centrifugal force generated by the centrifugal control component can act on the elastic locking component provided on the frame 1 through the transmission component, and buffer the rotation of the drum 14 when locked.
[0032] It should be noted that the rotation of roller 2 is controlled by a traction mechanism mounted on the frame 1. This traction mechanism can be a motor, and the output shaft of the motor is rotatably connected to the rotating shaft of roller 2. The specific motor control of roller 2 rotation adopts existing technology, which will not be elaborated further in this utility model.
[0033] In another embodiment, the rotation of the roller 2 can be achieved by manually pushing the frame 1.
[0034] In detail, when the laminating machine is laminating, when the frame 1 stops moving, the roller 2 stops rotating, causing the centrifugal force generated by the centrifugal control component to gradually disappear. This force then acts on the elastic locking component through the transmission assembly. During the locking process, the elastic locking component deforms in the initial stage to buffer the winding operation of the roll 14 until it is fully inserted into the roll 14, locking the rotation of the roll 14. This effectively prevents the roll 14 from rotating accidentally due to inertia or other external forces when the laminating machine stops moving, thus enhancing the stability of the equipment.
[0035] For further solutions to this utility model, please refer to [link / reference]. Figure 4The centrifugal control component includes a movable shaft 4 rotatably mounted on the frame 1. The movable shaft 4 is connected to the rotating shaft of the roller 2 via a first belt 3. A rotating plate 5 is fixedly arranged radially along the movable shaft 4, and a through groove is formed on the rotating plate 5. A slider 7 is slidably arranged in the through groove. A connecting rod 8 is hinged to the slider 7. The end of the connecting rod 8 away from the slider 7 is connected to the transmission component.
[0036] It also includes a first spring 6, which is disposed in the through groove. One end of the first spring 6 abuts against the slider 7, and the other end abuts against the inner end of the through groove.
[0037] To elaborate, when roller 2 stops rotating, the movable shaft 4 stops rotating under the transmission of the first belt 3. Previously, the first spring 6 was in a compressed state to store elastic potential energy. Once the movable shaft 4 stops rotating, under the elastic action of the first spring 6, the squeeze slider 7 moves quickly toward the movable shaft 4 in the through groove. When the slider 7 moves, under the action of the connecting rod 8, it drives the transmission component to perform transmission work again to transmit the driving force to the elastic locking component, so that the elastic locking component can lock the drum 14.
[0038] For further solutions to this utility model, please refer to [link / reference]. Figure 4 The transmission assembly includes a support shaft 11 axially arranged along the movable shaft 4 and fixed to the frame 1. A sleeve 9 and a connecting ring 10 are respectively arranged along the axial direction of the support shaft 11, and the sleeve 9 and the connecting ring 10 are rotatably connected. The sleeve 9 is hinged to the end of the connecting rod 8 away from the slider 7. A connecting plate 12 is fixedly sleeved on the connecting ring 10, and the end of the connecting plate 12 away from the connecting ring 10 is connected to a rotating component arranged on the frame 1.
[0039] The rotating component includes a drive shaft 13 rotatably mounted on the frame 1, the drive shaft 13 having a threaded groove 1301 formed thereon, and the connecting plate 12 being sleeved on the inner ring of the drive shaft 13 having a first ball 1201 adapted to the threaded groove 1301.
[0040] It also includes symmetrically arranged receiving shafts 16, which are rotatably mounted on the frame 1 via mounting brackets 15. The receiving shafts 16 are connected to the transmission shaft 13 via a second belt 25, and the receiving shafts 16 are provided with toothed rings 17 that drive the elastic locking member to perform locking operations.
[0041] Preferably, at least one set of strip grooves 1101 are formed on the support shaft 11, and a strip block 1001 that slides with the strip grooves 1101 is provided on the connecting ring 10.
[0042] When the slider 7 moves closer to the movable shaft 4 along the length of the through groove, the connecting rod 8 squeezes the connecting ring 10. Under the restriction of the strip groove 1101 and the strip block 1001, the connecting ring 10 and the sleeve 9 move linearly along the axial direction of the support shaft 11 and move away from the movable shaft 4. At this time, the sleeve 9 only moves with the movement of the connecting ring 10. During the movement of the connecting ring 10, under the action of the connecting plate 12, the first ball 1201 tilts the thread groove 1301, causing the connecting plate 12 to move in a direction parallel to the axis of the transmission shaft 13. The transmission shaft 13 rotates at this time. Under the transmission action of the second belt 25, the receiving shaft 16 rotates accordingly, so that when the toothed ring 17 rotates, it can simultaneously control multiple elastic locking elements to lock the drum 14, ensuring that the locking state of the drum 14 can be maintained stably.
[0043] For further solutions to this utility model, please refer to [link / reference]. Figure 6 and Figure 7 The elastic locking members are arranged in multiple sets along the radial direction of the rotating shafts at both ends of the drum 14, and can be respectively inserted into multiple locking holes 1401 distributed circumferentially on the rotating shafts.
[0044] The elastic locking component includes a lead screw 18 rotatably mounted on the mounting bracket 15. One end of the lead screw 18 is provided with a bevel gear 19 that can mesh with the gear ring 17, and the other end is threadedly connected to a threaded sleeve 20 that can slide with the mounting bracket 15. A cylindrical insertion groove is formed in the end of the threaded sleeve 20 away from the lead screw 18, and a telescopic buffer is provided in the cylindrical insertion groove that can be inserted into the lock hole 1401.
[0045] The telescopic buffer includes a plug rod 22, one end of which is inserted into the cylindrical plug groove and slidably connected to the cylindrical plug groove, and the other end can be inserted into the lock hole 1401 and is movably provided with a second ball bearing 23.
[0046] It also includes a second spring 21, which is disposed in the cylindrical insertion groove. One end of the second spring 21 abuts against the inner end of the cylindrical insertion groove, and the other end abuts against the insertion rod 22.
[0047] Preferably, the threaded sleeve 20 is slidably connected to the mounting bracket 15 via the connecting clamp 24.
[0048] Specifically, when the aforementioned gear ring 17 rotates, it can simultaneously control multiple bevel gears 19 to rotate synchronously, causing multiple lead screws 18 to rotate accordingly. When the lead screws 18 rotate, they drive the threaded sleeve 20 to move linearly along the axial direction of the lead screw 18. At the same time, the threaded sleeve 20 moves radially along the drum 14. When the threaded sleeve 20 moves toward the locking hole 1401, in the initial stage, when the second ball 23 is inserted into the locking hole 1401, under the action of the second spring 21, the drum 14 is not yet locked, and the drum 14 can still move slightly. The setting of the second spring 21 plays a buffering role in locking the drum 14 until multiple plug rods 22 are inserted into the locking hole 1401 at the same time to achieve the locking work of the drum 14. This can effectively prevent the drum 14 from rotating unexpectedly due to inertia or other external forces, and at the same time improve the stability of locking the drum 14.
[0049] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0050] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. An adjustable agricultural mulching machine, comprising a frame (1) and rollers (2) rotatably mounted on the frame (1) to drive the frame (1) to move, and a roll (14) mounted on the frame (1) for winding up the film. Its characteristics are: The frame (1) is provided with a centrifugal control component connected to the roller (2). When the roller (2) stops suddenly or moves, the centrifugal force generated by the centrifugal control component can act on the elastic locking component provided on the frame (1) through the transmission component, and buffer the rotation of the drum (14) when locked.
2. The adjustable farmland mulching machine according to claim 1, characterized in that, The centrifugal control component includes a movable shaft (4) rotatably mounted on the frame (1), the movable shaft (4) being connected to the rotating shaft of the roller (2) via a first belt (3), a rotating plate (5) being fixedly arranged radially along the movable shaft (4), and a through groove being formed on the rotating plate (5), a slider (7) being slidably arranged in the through groove, a connecting rod (8) being hinged on the slider (7), and the end of the connecting rod (8) away from the slider (7) being connected to the transmission assembly; It also includes a first spring (6), which is disposed in the through groove. One end of the first spring (6) abuts against the slider (7), and the other end abuts against the inner end of the through groove.
3. An adjustable farmland mulching machine according to claim 2, characterized in that, The transmission assembly includes a support shaft (11) axially arranged along the movable shaft (4) and fixed to the frame (1). A sleeve (9) and a connecting ring (10) are respectively arranged along the axial direction of the support shaft (11). The sleeve (9) and the connecting ring (10) are rotatably connected. The sleeve (9) is hinged to the end of the connecting rod (8) away from the slider (7). A connecting plate (12) is fixedly sleeved on the connecting ring (10). The end of the connecting plate (12) away from the connecting ring (10) is connected to a rotating component arranged on the frame (1).
4. An adjustable farmland mulching machine according to claim 3, characterized in that, The rotating component includes a drive shaft (13) rotatably mounted on the frame (1), the drive shaft (13) having a threaded groove (1301), and the connecting plate (12) being sleeved on the inner ring of the drive shaft (13) having a first ball (1201) adapted to the threaded groove (1301). It also includes symmetrically arranged receiving shafts (16), which are rotatably mounted on the frame (1) via mounting brackets (15). The receiving shafts (16) are connected to the transmission shaft (13) via a second belt (25), and the receiving shafts (16) are provided with a toothed ring (17) that drives the elastic locking member to perform locking work.
5. An adjustable farmland mulching machine according to claim 4, characterized in that, The elastic locking members are arranged in multiple sets along the radial direction of the rotating shafts at both ends of the drum (14), and can be respectively inserted into multiple locking holes (1401) distributed circumferentially along the rotating shafts.
6. An adjustable farmland mulching machine according to claim 5, characterized in that, The elastic locking component includes a lead screw (18) rotatably mounted on the mounting bracket (15). One end of the lead screw (18) is provided with a bevel gear (19) that can mesh with the gear ring (17), and the other end is threadedly connected with a threaded sleeve (20) that can slide with the mounting bracket (15). A cylindrical insertion groove is formed in the end of the threaded sleeve (20) away from the lead screw (18), and a telescopic buffer is provided in the cylindrical insertion groove that can be inserted into the lock hole (1401).
7. An adjustable farmland mulching machine according to claim 6, characterized in that, The telescopic buffer includes a plug rod (22), one end of which is inserted into the cylindrical plug groove and slidably connected to the cylindrical plug groove, and the other end can be inserted into the lock hole (1401) and is movably provided with a second ball (23); It also includes a second spring (21), which is disposed in the cylindrical insertion groove. One end of the second spring (21) abuts against the inner end of the cylindrical insertion groove, and the other end abuts against the insertion rod (22).