picking mechanism
By using a five-row spring tooth design and a contour-following system, the problems of low picking efficiency and poor reliability of the baler's picking platform have been solved, achieving efficient and stable picking and conveying, and adapting to complex terrain.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEILONGJIANG DEWO TECH
- Filing Date
- 2025-08-28
- Publication Date
- 2026-07-24
Smart Images
Figure CN224538860U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of bundling equipment technology, and in particular to a picking mechanism. Background Technology
[0002] The baler's pickup mechanism is the core component for picking up, gathering, and conveying surface crops. Its structural design and power transmission logic directly determine pickup efficiency and work quality. As the core pre-processing component of the baler, its main function is to pick up loose crops (such as wheat straw, corn stalks, and hay) from the ground, gather and organize them, and then stably convey them to the subsequent compression and baling system. It is the crucial bridge connecting "surface crops" and "baling operations," directly determining the baler's pickup efficiency, material utilization rate, and operational adaptability.
[0003] In related technologies, the baler's picking platform has four rows of spring teeth, resulting in low picking efficiency. The rotating shaft is directly fixed to the crankshaft or rotor shaft, rather than to the frame, leading to low overall reliability and limited applicability. It also performs poorly when facing uneven terrain. Utility Model Content
[0004] Therefore, it is necessary to provide a picking mechanism to address the problems of the current baler's picking table having four rows of spring teeth, resulting in low picking efficiency, the rotating shaft being directly fixed on the crankshaft or rotor shaft instead of being fixed on the frame, leading to low overall reliability and limited applicability, as well as poor picking effect when facing uneven terrain.
[0005] According to one aspect of this application, a picking mechanism is provided for a baling device, comprising: a frame; a picking main shaft rotatably mounted on the frame and used to pick up residual crops on the ground; a contour wheel that directly contacts the ground and is used to sense ground undulations in real time; and a contour linkage for receiving ground signals from the contour wheel and adjusting the angle between the frame and the picking main shaft via mechanical transmission; wherein, a plurality of positioning arc plates are circumferentially spaced on the outer wall of the picking main shaft, and a plurality of spring tooth groups are spaced upward along the axial direction of the picking main shaft, each spring tooth group comprising a plurality of spring teeth, wherein the plurality of spring teeth in the spring tooth group are correspondingly arranged with the plurality of positioning arc plates.
[0006] In one embodiment, the spring tooth includes a picking-up part and a winding part, the picking-up part facing away from the center of the picking spindle; in the corresponding positioning arc plate and the spring tooth, the winding part is detachably mounted on the positioning arc plate, and the spring tooth is fixed on the positioning arc plate by the winding part.
[0007] In one embodiment, the picking mechanism further includes bolts, and the winding section is detachably mounted on the positioning arc plate by means of the bolts.
[0008] In one embodiment, a conveying frame is provided on the inner walls of both sides of the frame, and at least one set of augers parallel to the picking main shaft are rotatably installed in the conveying frame.
[0009] In one embodiment, the picking mechanism further includes a weed-blocking mechanism and a linkage arm. The weed-blocking mechanism is used to prevent residual crops on the ground from splashing in all directions during the picking process. One end of the linkage arm is movably connected to the conveyor frame, and the other end of the linkage arm is movably connected to the weed-blocking mechanism.
[0010] In one embodiment, a first mounting seat is provided on the outer wall of the conveying frame, a second mounting seat is provided on the outer wall of the weed-blocking mechanism, and a first mounting shaft and a second mounting shaft are provided at both ends of the linkage arm. The first mounting shaft is movably mounted on the first mounting seat, and the second mounting shaft is movably mounted on the second mounting seat. The linkage arm is movably connected to the first mounting seat through the first mounting shaft, and the linkage arm is movably connected to the second mounting seat through the second mounting shaft.
[0011] In one embodiment, the second mounting base may also be detachably provided with multiple limiting rods, which are distributed on both sides of the linkage arm and limit its movement; multiple chains are also connected to the outer wall of the grass-blocking mechanism.
[0012] In one embodiment, the picking mechanism further includes a plurality of protective rings, which are correspondingly arranged with respect to the toothed tines. The plurality of protective rings are located between the grass-blocking mechanism and the picking main shaft, and each protective ring is located between two adjacent toothed tines.
[0013] In one embodiment, a connecting part is further provided between the frames, the connecting part being located on the side of the picking-up main shaft away from the weed-blocking mechanism; the connecting part is provided with a plurality of first protrusions and second protrusions, one end of the guard ring is detachably mounted on the first protrusion, and the other end of the guard ring is detachably mounted on the second protrusion.
[0014] In one embodiment, the conveyor frame is further provided with a connecting frame, which is used to provide a rotation fulcrum for adjusting the contour linkage.
[0015] This application has the following beneficial effects:
[0016] The five-row toothed pickup mechanism is not simply an increase in the number of teeth, but rather a comprehensive improvement in pickup performance achieved through a design logic of "density adaptation + resistance distribution + efficiency synergy." Compared with existing technologies, this device increases the "coverage frequency" of the ground per unit area by 30%-50% by reducing the track gaps. When moving forward, crops not picked up by the previous row of teeth will be "caught" by the subsequent row, especially for small, scattered crops on the ground, minimizing omissions. By distributing the force points, the five-row toothed mechanism evenly distributes the total resistance across more teeth, and the torque load on the pickup shaft is also reduced simultaneously, thus reducing the probability of tooth breakage and shaft damage from the source.
[0017] This application, through its modular structural design, precise power transmission logic, and specific optimizations for "clean pickup" and "terrain adaptation," serves as the core guarantee for the baler to achieve efficient and stable operation. Attached Figure Description
[0018] Figure 1 The overall three-dimensional structure of an embodiment of this application Figure 1 .
[0019] Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle.
[0020] Figure 3 The overall three-dimensional structure of an embodiment of this application Figure 2 .
[0021] Figure 4 This is a three-dimensional structural diagram of the frame in one embodiment of this application.
[0022] Figure 5 This is a cross-sectional view of an embodiment of this application.
[0023] Figure 6 for Figure 5 Enlarged view of the structure at point B.
[0024] Figure 7 This is an exploded view of the overall structure of an embodiment of this application.
[0025] Explanation of reference numerals in the attached figures:
[0026] 1. Weed-blocking mechanism; 2. Protective ring; 3. Pick-up main shaft; 4. Frame; 5. Screw; 6. Contouring wheel; 7. Contouring linkage; 8. Connecting frame; 9. Conveying frame; 10. First mounting base; 11. Second mounting base; 12. Linkage arm; 13. First mounting shaft; 14. Second mounting shaft; 15. Limiting rod; 16. Chain; 17. Connecting part; 18. First convex plate; 19. Second convex plate; 20. Positioning arc plate; 21. Spring tooth; 2101. Pick-up part; 2102. Winding part. Detailed Implementation
[0027] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0028] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0029] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0031] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0032] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.
[0033] See Figure 1 - Appendix Figure 7 , Figure 1 A schematic diagram of the overall structure of a picking mechanism according to an embodiment of this application is shown. This is a baling device, including a frame 4; a picking spindle 3, rotatably mounted on the frame 4 and used to pick up residual crops on the ground; a contour wheel 6, which directly contacts the ground and is used to sense ground undulations in real time; and a contour linkage 7, used to receive ground signals from the contour wheel 6 and adjust the angles of the frame 4 and the picking spindle 3 via mechanical transmission. The outer wall of the picking spindle 3 is circumferentially spaced with multiple positioning arc plates 20. Multiple positioning arc plates 20 are spaced upwards along the axial direction of the picking spindle 3 with multiple sets of spring teeth. Each set of spring teeth includes multiple spring teeth 21, and the multiple spring teeth 21 in the set correspond to the multiple positioning arc plates 20.
[0034] During operation, the power unit drives the main shaft 3 of the pickup platform and the auger 5 to rotate. The main shaft 3 of the pickup platform drives the five rows of spring teeth 21 to rotate, and the spring teeth 21 "pick up" the fallen or scattered crops from the ground. The crops picked up by the spring teeth 21 fall into the conveyor frame 9, and the rotating auger 5 gathers the crops towards the center through its spiral blades. The gathered material bundle is then continuously pushed by the auger 5 and conveyed backward to the feeding system of the baler, providing a stable material source for subsequent compression and baling operations.
[0035] The baling equipment's pickup platform, through its modular structural design, precise power transmission logic, and specialized optimizations for "clean pickup" and "terrain adaptability," becomes the core guarantee for the baling equipment to achieve efficient and stable operation, directly affecting the overall operating performance of the baler and the user experience.
[0036] See Figure 5 - Appendix Figure 6 The spring tooth 21 includes a picking part 2101 and a winding part 2102. The picking part 2101 faces the side away from the center of the picking spindle 3. In the corresponding positioning arc plate 20 and spring tooth 21, the winding part 2102 is detachably installed on the positioning arc plate 20, and the spring tooth 21 is fixed on the positioning arc plate 20 through the winding part 2102.
[0037] In some embodiments, the main shaft 3 of the picking platform adopts a five-row toothed tooth layout. Compared with the traditional three- or four-row toothed tooth layout, the rotation trajectory of the five-row toothed tooth layout has a higher "coverage frequency" of the ground per unit time. Furthermore, when moving forward, the trajectory gap between adjacent toothed teeth is smaller, which can more comprehensively pick up crops on the ground and reduce the phenomenon of "missed picking". It is especially suitable for plots where crops are severely lodged or densely packed.
[0038] The rotation speed of the spring tooth 21 is precisely matched with the travel speed of the baling equipment to ensure that after the spring tooth 21 "picks up" the crop, it can promptly transfer the material to the auger 5, avoiding material splashing due to excessive rotation speed or material accumulation in the picking table due to excessively slow rotation speed. This achieves a seamless connection between "picking up - gathering - conveying" and improves overall operation efficiency.
[0039] In some embodiments, the gearbox transmits power to the pickup table, driving the pickup table main shaft 3 and the auger 5 to rotate respectively. The rotation speeds of the two are matched according to the operational requirements to ensure a stable material conveying rhythm.
[0040] In order to improve the elasticity of the spring tooth 21 and avoid damage to the spring tooth 21 when the stress is too great during the grasping process, a spring-shaped winding part 2102 is designed. This design can further improve the elastic potential energy of the picking part 2101.
[0041] See appendix Figure 5 - Appendix Figure 6 The picking mechanism also includes bolts, and the winding part 2102 is detachably mounted on the positioning arc plate 20 by bolts.
[0042] In some embodiments, in order to facilitate the inspection and replacement of the spring teeth 21, it is designed as a detachable structure, so that when a certain spring tooth 21 is damaged, only that spring tooth 21 can be replaced.
[0043] See Figure 1 and attached Figure 7The inner walls on both sides of the frame 4 are provided with conveyor frames 9, and at least one set of augers 5 parallel to the picking main shaft 3 are rotatably installed in the conveyor frames 9.
[0044] In some embodiments, the auger 5 is used to receive the crops picked up by the spring teeth 21. By rotating, it gathers the scattered crops towards the center of the picking platform, avoiding uneven material accumulation and forming a continuous and uniform material bundle. The gathered material bundle is continuously pushed by the auger 5 and conveyed backward to the feeding system of the baling equipment, providing a stable material source for subsequent compression and baling operations.
[0045] See appendix Figure 1 - Appendix Figure 2 The picking mechanism also includes a weed-blocking mechanism 1 and a linkage arm 12. The weed-blocking mechanism 1 is used to prevent residual crops on the ground from splashing in all directions during the picking process. One end of the linkage arm 12 is movably connected to the conveyor frame 9, and the other end of the linkage arm 12 is connected to the weed-blocking mechanism 1. A first mounting seat 10 is provided on the outer wall of the conveyor frame 9, and a second mounting seat 11 is provided on the outer wall of the weed-blocking mechanism 1. A first mounting shaft 13 and a second mounting shaft 14 are provided at both ends of the linkage arm 12. The first mounting shaft 13 is movably mounted on the first mounting seat 10, and the second mounting shaft 14 is movably mounted on the second mounting seat 11. The linkage arm 12 is movably connected to the first mounting seat 10 through the first mounting shaft 13, and the linkage arm 12 is movably connected to the second mounting seat 11 through the second mounting shaft 14.
[0046] In some embodiments, to ensure the grass-blocking mechanism 1 is movably connected to the frame 4, thereby increasing the degree of freedom and adjusting the angle between the grass-blocking mechanism 1 and the frame 4 according to actual needs, a linkage arm 12 structure is designed. A first rotating slot is provided on the first mounting base 10, and the linkage arm 12 is movably connected to the first rotating slot via a first mounting shaft 13. A second rotating slot is provided on the second mounting base 11, and the linkage arm 12 is movably connected to the second rotating slot via a second mounting shaft 14.
[0047] See appendix Figure 1 - Appendix Figure 2 The second mounting base 11 can also be detachably equipped with multiple limiting rods 15, which are distributed on both sides of the linkage arm 12 and limit its movement; multiple chains 16 are also connected to the outer wall of the grass-blocking mechanism 1.
[0048] In some embodiments, the straw-blocking mechanism 1 prevents crops from splashing to both sides during the picking process, ensuring that the crops are concentrated in the picking area and reducing material loss. The angle of the straw-blocking mechanism 1 on the baler's picking platform is usually adjustable, which helps optimize the picking and conveying of crops. When the crop density is high or the straw is thick, appropriately increasing the angle of the straw-blocking mechanism 1 can provide a wider conveying channel for the crops and reduce the possibility of blockage; while when the crop density is low or the straw is relatively uniform, the angle of the straw-blocking mechanism 1 can be reduced, allowing the crops to be guided more accurately to the subsequent baling area, improving the efficiency and quality of picking and baling.
[0049] In some embodiments, in order to fix the angle between the linkage arm 12 and the grass-blocking mechanism 1, multiple limiting rods 15 are designed, and multiple openings are also provided on the second mounting base 11. When the limiting rods 15 are inserted into different openings, the angle between the linkage arm 12 and the grass-blocking mechanism 1 can be adjusted.
[0050] The baling equipment is also equipped with a winding device, which can wind or release the chain 16 to adjust the opening angle of the grass-blocking mechanism 1.
[0051] See appendix Figure 5 - Appendix Figure 6 The picking mechanism also includes multiple protective rings 2, which are correspondingly arranged with the spring tooth groups. The multiple protective rings 2 are all located between the grass-blocking mechanism 1 and the picking main shaft 3, and each protective ring 2 is located between two adjacent spring tooth groups.
[0052] In some embodiments, the protective ring 2 is designed to be multiple and to wrap around the movement area of the pickup table spindle 3 and the spring teeth 21, on the one hand protecting the internal rotating parts from impacts by impurities, and on the other hand preventing personnel from crawling under the vehicle and accidentally touching and getting injured.
[0053] In some embodiments, the protective ring 2 on the baler's picking platform is an important structure for protecting the internal rotating components and assisting in crop picking and conveying. In this application, the protective ring 2 has an arc-shaped structure, surrounding the main shaft 3 of the picking platform and the outer side of the moving area of the spring teeth 21. Its top features a unique arc design, ensuring that the straw can smoothly separate from the spring teeth 21 when entering the non-operating stage, while effectively controlling the resistance of the straw during picking, lifting, and pushing.
[0054] See appendix Figure 5 - Appendix Figure 6 A connecting part 17 is also provided between the frame bodies 4. The connecting part 17 is located on the side of the picking main shaft 3 away from the grass blocking mechanism 1. Multiple first protrusions 18 and second protrusions 19 are provided on the connecting part 17. One end of the guard ring 2 is detachably installed on the first protrusion 18, and the other end of the guard ring 2 is detachably installed on the second protrusion 19.
[0055] In some embodiments, in order to facilitate subsequent maintenance and replacement of damaged guard ring 2, the guard ring 2 is designed as a detachable structure. One end of the guard ring 2 is detachably mounted on the first protrusion plate 18 by bolts, and the other end is also detachably mounted on the second protrusion plate 19 by bolts.
[0056] See appendix Figure 1 Appendix Figure 3 and attached Figure 5 The conveyor frame 9 is also equipped with a connecting frame 8, which provides a rotation fulcrum for adjusting the contour linkage 7.
[0057] In some embodiments, during operation, the contour wheel 6 moves up and down with the undulations of the ground, transmitting signals to the contour linkage 7 through a mechanical structure. The contour linkage 7 uses the connecting frame 8 as a hinge axis to drive the entire pickup table to swing up and down around the axis, ensuring that the pickup table is always in contact with the ground or maintains a certain distance from the ground, thus avoiding problems such as "missed pickups" or "pickup table hitting the ground" caused by uneven ground.
[0058] In some embodiments, the connecting frame 8 acts as a hinged pivot, providing the pickup platform with the freedom to "swing up and down." The contour wheel 6 senses changes in ground height in real time, and the contour linkage 7 acts as an "actuator," adjusting the height of the pickup platform according to ground signals. The "contour system" formed by these three components allows the pickup platform to maintain a reasonable distance from the ground when operating on uneven terrain such as hills, depressions, and field ridges (neither too high to cause missed pickups nor too low to cause collisions), greatly improving the equipment's adaptability to complex terrain while protecting the pickup platform components from ground impact damage.
[0059] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0060] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A picking mechanism for bundling equipment, characterized in that, include: Frame (4); The picking shaft (3) is rotatably mounted on the frame (4) and used to pick up residual crops on the ground; The contour wheel (6) is in direct contact with the ground and is used to sense the undulations of the ground in real time. The contour linkage (7) is used to receive the ground signal from the contour wheel (6) and adjust the angle of the frame (4) and the pickup spindle (3) through mechanical transmission; The outer wall of the pickup spindle (3) is provided with multiple positioning arc plates (20) spaced circumferentially. The multiple positioning arc plates (20) are provided with multiple spring tooth groups spaced axially along the pickup spindle (3). Each spring tooth group includes multiple spring teeth (21). The multiple spring teeth (21) in the spring tooth group are correspondingly arranged with the multiple positioning arc plates (20).
2. The picking mechanism according to claim 1, characterized in that, The spring tooth (21) includes a pickup part (2101) and a winding part (2102), wherein the pickup part (2101) is oriented toward a side away from the center of the pickup spindle (3); In the corresponding positioning arc plate (20) and the spring tooth (21), the winding part (2102) is detachably installed on the positioning arc plate (20), and the spring tooth (21) is fixed on the positioning arc plate (20) by the winding part (2102).
3. The picking mechanism according to claim 2, characterized in that, The picking mechanism also includes bolts, and the winding part (2102) is detachably mounted on the positioning arc plate (20) by means of the bolts.
4. The picking mechanism according to any one of claims 1-3, characterized in that, The inner walls on both sides of the frame (4) are provided with a conveying frame (9), and at least one set of augers (5) parallel to the picking main shaft (3) are rotatably installed in the conveying frame (9).
5. The picking mechanism according to claim 4, characterized in that, The picking mechanism also includes a grass-blocking mechanism (1) and a linkage arm (12). The grass-blocking mechanism (1) is used to prevent residual crops on the ground from splashing around during the picking process. One end of the linkage arm (12) is movably connected to the conveying frame (9), and the other end of the linkage arm (12) is movably connected to the grass-blocking mechanism (1).
6. The picking mechanism according to claim 5, characterized in that, The outer wall of the conveying frame (9) is provided with a first mounting seat (10), and the outer wall of the grass-blocking mechanism (1) is provided with a second mounting seat (11). The linkage arm (12) is provided with a first mounting shaft (13) and a second mounting shaft (14) at both ends. The first mounting shaft (13) is movably mounted on the first mounting seat (10), and the second mounting shaft (14) is movably mounted on the second mounting seat (11). The linkage arm (12) is movably connected to the first mounting base (10) via the first mounting shaft (13), and the linkage arm (12) is movably connected to the second mounting base (11) via the second mounting shaft (14).
7. The picking mechanism according to claim 6, characterized in that, The second mounting base (11) may also be detachably provided with multiple limiting rods (15), which are distributed on both sides of the linkage arm (12) and limit its movement; And / or, multiple chains (16) are also connected to the outer wall of the grass-blocking mechanism (1).
8. The picking mechanism according to claim 5, characterized in that, The picking mechanism also includes multiple protective rings (2), and the multiple protective rings (2) are arranged corresponding to the spring tooth group; Multiple guard rings (2) are located between the grass-blocking mechanism (1) and the picking-up spindle (3), and each guard ring (2) is located between two adjacent sets of spring teeth.
9. The picking mechanism according to claim 8, characterized in that, A connecting part (17) is also provided between the frame bodies (4), and the connecting part (17) is located on the side of the picking main shaft (3) away from the grass blocking mechanism (1); The connecting part (17) is provided with a plurality of first protrusions (18) and second protrusions (19). One end of the protective ring (2) is detachably mounted on the first protrusion (18), and the other end of the protective ring (2) is detachably mounted on the second protrusion (19).
10. The picking mechanism according to claim 4, characterized in that, The conveying frame (9) is also provided with a connecting frame (8), which is used to provide a rotation fulcrum for the adjustment of the contour linkage (7).