A crop harvester
By using a ball screw assembly to drive the moving plate and the interceptor plate to move synchronously, the problem of the baffles in the harvester not being able to adjust synchronously is solved, enabling the orderly collection of crops and lodging control, and improving the harvester's operating efficiency and continuity.
Patent Information
- Application Number
- CN202521657483.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-05
- Publication Date
- 2026-06-26
- Estimated Expiration
- 2035-08-05
AI Technical Summary
The existing harvester's baffle structure cannot be adjusted synchronously according to the movement of the cutting components, resulting in limited interception effect, especially in terms of crop lodging direction control and continuous operation capability.
The system uses a ball screw assembly to drive the moving plate to move synchronously, which in turn drives the interception plate to block the splashing of cut crops and guides them to fall over in a predetermined direction. At the same time, a collection plate and a storage frame are set up to facilitate the orderly stacking and centralized processing of crops.
It effectively prevents crop spillage, controls crop lodging direction, improves harvester operating efficiency and continuity, reduces crop scattering and entanglement, and facilitates tool storage and maintenance.
Smart Images

Figure CN224402241U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crop harvesting technology, and in particular to a crop harvester. Background Technology
[0002] A crop harvester is an agricultural machine used for the mechanized harvesting of mature crops. It can efficiently complete tasks such as cutting and collecting, significantly improving agricultural production efficiency. Some harvesters also have threshing functions, enabling integrated operations.
[0003] During harvesting, when the cutting components of a combine harvester cut the roots or stalks of crops (such as wheat, rice, and corn), the cut crops are prone to splashing, scattering, or lodging due to inertia or cutting force. This not only leads to crop loss but can also interfere with subsequent harvesting operations, such as crops becoming entangled in mechanical parts, affecting harvesting efficiency or even causing equipment malfunctions. Some harvesting equipment incorporates simple baffle structures to block the splashing of cut crops; however, these baffles are usually fixed and cannot be adjusted synchronously with the movement of the cutting components, resulting in limited interception effectiveness, particularly in controlling crop lodging direction and continuous operation capabilities.
[0004] Therefore, there is a need for a crop harvester that can prevent crop spillage and control the direction of crop lodging. Utility Model Content
[0005] To overcome the shortcomings of existing technologies where baffles are usually fixed and cannot be adjusted synchronously according to the movement of the cutting components, resulting in limited interception effect, especially in terms of crop lodging direction control and continuous operation capability, this utility model provides a crop harvester that can block crop splashing and control the lodging direction of crops.
[0006] The technical solution of this utility model is: a crop harvester, including a support frame, rollers, handles, a motor, a ball screw assembly, a moving plate, a cutting assembly, and a blocking plate. Two sets of rollers are installed on the rear side of the support frame, two handles are fixedly connected to the top of the support frame, a motor is installed on the left side of the support frame, a ball screw assembly is rotatably arranged inside the support frame, the output shaft of the motor is connected to the ball screw assembly through a coupling, a moving plate is arranged on the ball screw assembly, a cutting assembly is arranged inside the moving plate, and a blocking plate is fixedly connected to one side of the moving plate.
[0007] To further explain, it also includes a collecting plate, a fixing plate, a screw, and a screwing block. The collecting plate is slidably installed on the front side of the support frame, and the fixing plate is fixedly connected to the rear side of the collecting plate. The screw is fixedly connected to the front side of the support frame, the screw passes through the fixing plate, and a screwing block is screwed on the screw, which presses the fixing plate tightly.
[0008] To further explain, it also includes a storage frame, a connecting rod, and a cover plate. The storage frame is fixedly connected to the rear side of the support frame, the connecting rod is fixedly connected to the top of the storage frame, and the cover plate is rotatably mounted on the connecting rod.
[0009] To further explain, it also includes a protective shell, which is snapped onto the top of the movable plate, and the protective shell covers the top of the cutting assembly.
[0010] To further explain, it also includes an anti-slip sleeve, with an anti-slip sleeve fitted on the upper part of the handle.
[0011] To further explain, it also includes a rubber plate, and the surface of the screw block is provided with a rubber plate.
[0012] Compared with the prior art, the present invention provides a crop harvester with the following beneficial effects: 1. When the moving plate moves laterally, the intercepting plate moves synchronously to block the crop from splashing after cutting. At the same time, it guides the cut crops to fall in a predetermined direction (such as the front collection area) to avoid the crops from scattering or getting tangled and affecting continuous harvesting.
[0013] 2. During harvesting, the cut crops are guided by interception plates on the moving platform and stacked in an orderly manner on the inclined collection plate, which facilitates subsequent centralized transportation or processing.
[0014] 3. When using the harvester, if you need to store maintenance tools, you can rotate the cover upwards to open the storage box and put the maintenance tools into the storage box for easy access during subsequent maintenance. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0016] Figure 2 This is a partial sectional view of the support frame, rollers, handles, and other components of this utility model.
[0017] Figure 3 This is a partial cross-sectional view of the movable plate, cutting assembly, and intercepting plate components of this utility model.
[0018] Figure 4 This is a partial sectional view of the components of this utility model, including the collecting plate, fixing plate, and screwing block.
[0019] Figure 5 This is a partial sectional view of the storage frame, connecting rod, and cover plate of this utility model.
[0020] The markings in the attached diagram are as follows: 1: support frame, 2: roller, 3: handle, 4: motor, 5: ball screw assembly, 6: moving plate, 7: cutting assembly, 8: intercepting plate, 9: protective shell, 10: anti-slip sleeve, 11: collecting plate, 12: fixing plate, 13: screw, 14: screw block, 15: rubber plate, 16: storage box, 17: connecting rod, 18: cover plate. Detailed Implementation
[0021] The present invention will now be described more fully below with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. However, the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness and to fully convey the scope of the invention to those skilled in the art.
[0022] Example 1: A crop harvester, please refer to... Figures 1-5 The device includes a support frame 1, rollers 2, handles 3, a motor 4, a ball screw assembly 5, a moving plate 6, a cutting assembly 7, and an intercepting plate 8. Two sets of rollers 2 are installed on the rear side of the support frame 1. Two handles 3 are fixedly connected to the top of the support frame 1. A motor 4 is installed on the left side of the support frame 1. The ball screw assembly 5 is rotatably installed inside the support frame 1. The output shaft of the motor 4 is connected to the ball screw assembly 5 through a coupling. A moving plate 6 is installed on the ball screw assembly 5. The cutting assembly 7 is installed inside the moving plate 6. An intercepting plate 8 is fixedly connected to one side of the moving plate 6. A protective shell 9 is snapped onto the top of the moving plate 6. The protective shell 9 covers the top of the cutting assembly 7 to prevent debris from being rolled into the cutting assembly 7. An anti-slip sleeve 10 is fitted on the upper end of the handle 3 to enhance grip stability and prevent slippage when wet.
[0023] When the harvester is needed, the operator holds the handle 3 and pushes the support frame 1 forward. The roller 2 rotates to assist the movement. After reaching the starting position, the motor 4 and the cutting component 7 are started. The motor 4 drives the ball screw assembly 5 to rotate, converting the rotational motion into precise linear motion, which drives the moving plate 6 to move laterally back and forth along the support frame 1. When the moving plate 6 drives the cutting component 7 past the crops, the cutting component 7 cuts the roots or stems of the crops. As the moving plate 6 moves laterally, the intercepting plate 8 moves synchronously to block the crop from splashing after cutting. At the same time, it guides the cut crops to fall in a predetermined direction (such as the front collection area) to avoid the crops from scattering or getting tangled and affecting continuous harvesting.
[0024] Example 2: Based on Example 1, please refer to... Figure 1 and Figure 4It also includes a collecting plate 11, a fixing plate 12, a screw 13, and a screwing block 14. The collecting plate 11 is slidably installed on the front side of the support frame 1, and the fixing plate 12 is fixedly connected to the rear side of the collecting plate 11. The screw 13 is fixedly connected to the front side of the support frame 1, and the screw 13 passes through the fixing plate 12. The screwing block 14 is screwed on the screw 13 and presses the fixing plate 12. The surface of the screwing block 14 is provided with a rubber plate 15. When the screwing block 14 is tightened, the rubber plate 15 can effectively relieve the direct pressure between the hand and the screwing block 14, improve the operating comfort, and the rubber material increases the coefficient of friction, ensuring that it is not easy to slip during operation and is easy to apply force.
[0025] Before using the harvester, the collecting plate 11 must be installed. Slide the collecting plate 11 to the front of the support frame 1 and adjust its position so that the screw 13 on the front of the support frame 1 is aligned with the mounting hole of the fixing plate 12. Then, push the collecting plate 11 backward so that the screw 13 completely passes through the mounting hole of the fixing plate 12. Finally, tighten the screw block 14 on the screw 13 to press the fixing plate 12 and ensure that the collecting plate 11 is firmly fixed to the front of the support frame 1. During the harvesting operation, the cut crops are guided by the intercepting plate 8 on the moving plate 6 and piled up in an orderly manner on the inclined collecting plate 11 for easy subsequent centralized transfer or processing.
[0026] Please see Figure 1 and Figure 5 It also includes a storage frame 16, a connecting rod 17 and a cover plate 18. The storage frame 16 is fixedly connected to the rear side of the support frame 1, the connecting rod 17 is fixedly connected to the top of the storage frame 16, and the cover plate 18 is rotatably mounted on the connecting rod 17.
[0027] When using the harvester, if you need to store maintenance tools, you can rotate the cover plate 18 upwards to open the storage box 16 and put the maintenance tools into the storage box 16 for easy access during subsequent maintenance. After storage, rotate the cover plate 18 downwards to close the storage box 16 to prevent tools from falling or rainwater from entering.
[0028] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. All equivalent substitutions made within the principles of this utility model should be included within the protection scope of this utility model. Contents not described in detail in this utility model are existing technologies known to those skilled in the art.
Claims
1. A crop harvester, characterized in that: It includes a support frame (1), rollers (2), handles (3), motor (4), ball screw assembly (5), moving plate (6), cutting assembly (7) and intercepting plate (8). Two sets of rollers (2) are installed on the rear side of the support frame (1). Two handles (3) are fixedly connected to the top of the support frame (1). The motor (4) is installed on the left side of the support frame (1). The ball screw assembly (5) is rotatably installed inside the support frame (1). The output shaft of the motor (4) is connected to the ball screw assembly (5) through a coupling. The moving plate (6) is installed on the ball screw assembly (5). The cutting assembly (7) is installed inside the moving plate (6). The intercepting plate (8) is fixedly connected to one side of the moving plate (6).
2. The crop harvester as described in claim 1, characterized in that: It also includes a collection plate (11), a fixing plate (12), a screw (13) and a screw block (14). The collection plate (11) is slidably provided on the front side of the support frame (1), and the fixing plate (12) is fixedly connected to the rear side of the collection plate (11). The screw (13) is fixedly connected to the front side of the support frame (1), the screw (13) passes through the fixing plate (12), and the screw block (14) is screwed on the screw (13). The screw block (14) presses the fixing plate (12) tightly.
3. A crop harvester as described in claim 2, characterized in that: It also includes a storage frame (16), a connecting rod (17) and a cover plate (18). The storage frame (16) is fixedly connected to the rear side of the support frame (1), and the connecting rod (17) is fixedly connected to the top of the storage frame (16). The cover plate (18) is rotatably installed on the connecting rod (17).
4. A crop harvester as described in claim 3, characterized in that: It also includes a protective shell (9), the top of the movable plate (6) is snapped with the protective shell (9), and the protective shell (9) shields the top of the cutting assembly (7).
5. A crop harvester as described in claim 4, characterized in that: It also includes an anti-slip sleeve (10), and the upper end of the handle (3) is fitted with an anti-slip sleeve (10).
6. A crop harvester as described in claim 5, characterized in that: It also includes a rubber plate (15), and the surface of the screw block (14) is provided with a rubber plate (15).