A narrow row spacing ear picking single row

Abstract

The utility model provides a kind of single row of ear picking of narrow row spacing, the single row of ear picking of narrow row spacing includes ear picking frame, ear picking board, hinged frame, limiting block and elastic piece.The utility model is provided with hinged frame in the side hinged setting of ear picking frame, swing arm is fixedly installed in both ends of hinged frame, the other end of swing arm is hinged setting in the side of ear picking board.In the middle part of hinged frame, linkage shaft is fixedly installed, and the both ends of elastic piece are respectively installed on linkage shaft and ear picking frame.Elastic piece can pull hinged frame top to swing in the direction of being close to guide gap direction.And when thicker corn stalk passes through guide gap, ear picking board is extruded by corn stalk and moves in the direction of being away from guide gap, to increase the size of guide gap, and when smaller size stalk passes through, under the pulling force of elastic piece, ear picking board restores to the position of abutting against limiting block, to realize that guide gap is self-regulated with stalk size, avoid the problem of stalk breakage affecting harvest rate.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery and equipment technology, specifically relating to a single-row ear-picking method with narrow row spacing. Background Technology

[0002] During the operation of a corn harvester, the ear-picking row is used to comb and cut corn stalks. Two ear-picking plates are installed on the ear-picking row, which form a flow gap for the corn stalks to pass through, thus guiding the corn stalks. However, most of the ear-picking plates on the ear-picking row currently adopt a fixed structure design. However, during the corn harvesting process, corn stalks vary in thickness. For thicker or thinner stalks, problems such as ear breakage and corn cob detachment are likely to occur, resulting in a high harvesting loss rate. Utility Model Content

[0003] This utility model provides a narrow-row single-row ear-picking mechanism, which aims to solve the problem of increased harvesting loss rate caused by easy damage to corn stalks during the use of single-row ear-picking in existing corn harvesters.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a single row of ear-picking with narrow row spacing, comprising: Two ear-picking frames are provided, with the two ear-picking frames spaced apart. The direction of the spacing between the two ear-picking frames is defined as the first direction. The picking board is freely attached to the top of the picking frame, and the picking boards on the two picking frames form a guide gap for the straw to pass through; A hinged frame is hinged at both ends to the ear-picking frame, and a swing arm is fixedly installed on the hinged frame. The swing arm is hinged to the side of the ear-picking plate. A limiting block, installed on the ear-picking frame, is used to limit the ear-picking plate from moving towards another ear-picking frame; An elastic element, connected between the hinge frame and the picking frame, is used to pull the hinge frame to swing towards the guide gap.

[0005] In one possible implementation, the top of the picking frame is provided with a support protrusion for supporting the picking plate.

[0006] In one possible implementation, the picking frame is further equipped with a connecting seat for mounting one end of the elastic element, the connecting seat having a degree of freedom to adjust its position on the picking frame along a first direction.

[0007] In one possible implementation, a gear is rotatably mounted on the connecting seat, and a rack that meshes with the gear is mounted on the picking frame, the length direction of the rack being arranged along a first direction.

[0008] In one possible implementation, two gears are rotatably mounted on the connecting seat, the two gears meshing with each other, and two racks are mounted on the picking frame that mesh with the two gears respectively.

[0009] In one possible implementation, the limiting block has a fixing hole in the middle for fixing to the picking frame, and the limiting block has a plurality of limiting surfaces for limiting the picking plate to move toward the guide gap, and the distance between the plurality of limiting surfaces and the axis of the fixing hole is different.

[0010] In one possible implementation, the narrow-row picking single row further includes a gearbox, two picking frames are fixedly mounted on the gearbox, and a first sprocket is rotatably mounted on the gearbox. A guide frame is mounted on the picking frame, and a second sprocket is rotatably mounted on the guide frame. A picking chain is drivingly connected between the first sprocket and the second sprocket.

[0011] In one possible implementation, the guide frame has a mounting hole at one end near the gearbox for fixing to the picking frame, and the other end of the guide frame has a degree of freedom to swing about the mounting hole at its position on the picking frame.

[0012] In one possible implementation, a fixing component for fixing the guide frame to the picking frame is provided between the end of the guide frame away from the mounting hole and the picking frame, the fixing component including; A fixing plate is installed on the picking frame; The fastener is threadedly connected to the fixing plate and passes through the picking frame and the guide frame. The picking frame is provided with an arc-shaped hole to avoid the fastener.

[0013] In one possible implementation, a cam is mounted on the picking frame, the cam having a through hole in its center for mounting onto the picking frame, the cam being located on one side of the guide frame, and the outer wall of the cam being able to abut against the guide frame.

[0014] The solution shown in this application, compared with the prior art, involves setting two parallel, spaced-apart ear-picking frames. Ear-picking plates are installed on both frames, forming a guide gap for guiding the straw. The two ear-picking plates overlap the top of the ear-picking frames, and a limiting plate is installed on the top of the frames, spaced apart to form an installation space for accommodating the ear-picking plates. This application also includes a hinged frame on one side of the ear-picking frame, with swing arms fixedly installed at both ends. The other end of each swing arm is hinged to the side of the ear-picking plate. The swinging of the swing arms adjusts the position of the ear-picking plate along a first direction, thereby changing the size of the guide gap. A linkage shaft is fixedly installed in the middle of the hinged frame, parallel to the hinge shaft on the ear-picking frame. The elastic element is a tension spring, with its two ends installed on the linkage shaft and the ear-picking frame, respectively. The elastic element allows the top of the hinged frame to swing towards the guide gap, causing the picking plate to rest against the limiting block. When thicker corn stalks pass through the guide gap, the picking plate is squeezed by the stalks and moves away from the guide gap, thus increasing the size of the guide gap. When smaller stalks pass through, the elastic element pulls the picking plate back to its position against the limiting block. This allows the guide gap to self-adjust according to the size of the stalks, preventing stalk damage from affecting the harvest rate. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of a narrow-row-spaced single-row ear-picking device provided in an embodiment of this utility model; Figure 2 A schematic diagram of the installation structure of the connector provided in an embodiment of this utility model; Figure 3 A schematic diagram of the installation structure of the limiting block and cam provided in an embodiment of this utility model; Figure 4 A schematic diagram of the installation structure of the guide frame provided in an embodiment of this utility model; Figure 5 This is a schematic diagram of the installation structure of the fixing component provided in an embodiment of the present utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Harvesting frame; 11. Support protrusion; 12. Rack; 2. Harvesting plate; 3. Hinge frame; 4. Limiting block; 5. Elastic element; 6. Connecting seat; 61. Gear; 7. Gearbox; 81. First sprocket; 82. Second sprocket; 83. Harvesting chain; 9. Guide frame; 91. Cam; 92. Fixing component; 921. Fastener; 922. Fixing plate. Detailed Implementation

[0017] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] Please refer to the following: Figures 1 to 5 The present invention provides a narrow-row picking single-row system. The narrow-row picking single-row system includes a picking frame 1, a picking plate 2, a hinge frame 3, a limiting block 4, and an elastic element 5. There are two picking frames 1, spaced apart, with the spacing between the two frames defined as a first direction. The picking plate 2 is freely attached to the top of the picking frame 1, and the picking plates 2 on the two frames form a guide gap for straw passage. The hinge frame 3 is hinged at both ends to the picking frame 1, and a swing arm is fixedly installed on the hinge frame 3, with the swing arm hinged to the side of the picking plate 2. The limiting block 4 is installed on the picking frame 1 to limit the movement of the picking plate 2 towards the other picking frame 1. The elastic element 5 is connected between the hinge frame 3 and the picking frame 1, and is used to pull the hinge frame 3 to swing towards the guide gap.

[0019] The narrow-row picking method provided in this embodiment, compared with the prior art, features two picking frames 1 spaced apart and arranged parallel to each other. Picking plates 2 are installed on both frames 1, forming a guide gap for guiding the straw. The two picking plates 2 overlap the top of the picking frames 1, and a limiting plate is also installed on the top of the frames 1. The limiting plate and the top of the picking plates 2 are spaced apart to form an installation space for accommodating the picking plates 2. In this application, a hinge frame 3 is hinged to one side of the picking frame 1, and swing arms are fixedly installed at both ends of the hinge frame 3. The other end of the swing arm is hinged to the side of the picking plate 2. By swinging the swing arm, the position of the picking plate 2 along a first direction can be adjusted, thereby changing the size of the guide gap. A linkage shaft is fixedly installed in the middle of the hinge frame 3. The linkage shaft is parallel to the hinge shaft of the hinge frame 3 on the ear-picking frame 1. The elastic element 5 is a tension spring, with its two ends installed on the linkage shaft and the ear-picking frame 1, respectively. The elastic element 5 can pull the top of the hinge frame 3 to swing towards the guide gap, so that the ear-picking plate 2 abuts against the limiting block 4. When a thicker corn stalk passes through the guide gap, the ear-picking plate 2 will move away from the guide gap due to the pressure of the corn stalk, thereby increasing the size of the guide gap. When a smaller stalk passes through, the ear-picking plate 2 will return to the position abutting against the limiting block 4 due to the pulling force of the elastic element 5. This achieves self-adjustment of the guide gap according to the size of the stalk, avoiding the problem of stalk damage affecting the harvest rate.

[0020] Specifically, in this embodiment, the corn stalk picking plate 2 is bent downward on one side near the guide gap to avoid damaging the corn stalks.

[0021] In some embodiments, the above-mentioned stalk-picking frame 1 can be adopted as follows: Figure 2 The structure shown. See also Figure 2 The top of the picking frame 1 has a protruding support protrusion 11 for supporting the picking plate 2. The support protrusion 11 is either a raised dot structure or a long strip structure with its length along a first direction. When the support protrusion 11 is a long strip structure, its outer surface is arc-shaped, which can reduce the contact area between the picking plate 2 and the picking frame 1, reduce the resistance between the picking frame 1 and the picking plate 2, and facilitate the picking plate 2 to adapt to the outer diameter of the straw.

[0022] Preferably, in this embodiment, a plurality of raised support protrusions 11 are provided on the top of the ear-picking frame 1 near the guide gap, and a long strip support protrusion 11 is provided on the top away from the guide gap.

[0023] In some embodiments, the above-mentioned stalk-picking frame 1 can be adopted as follows: Figure 2 , Figure 3 The structure shown. See also... Figure 2 , Figure 3 The picking frame 1 is also equipped with a connecting seat 6 for mounting one end of the elastic element 5. The connecting seat 6 has a degree of freedom in adjusting its position on the picking frame 1 along a first direction. The connecting seat 6 is fixed to the picking frame 1 by bolts. Furthermore, the position of the connecting seat 6 on the picking frame 1 can be adjusted along the first direction. By adjusting the position of the connecting seat 6, the pulling force of the elastic element 5 on the hinge frame 3 can be changed. Therefore, the position of the connecting seat 6 can be adjusted according to the actual site conditions to adjust the rebound force of the picking plate 2. This ensures that the straw is effectively guided, preventing damage or breakage.

[0024] In some embodiments, the connecting seat 6 may be adopted as follows: Figure 2 The structure shown. See also Figure 2 A gear 61 is rotatably mounted on the connecting seat 6, and a rack 12 meshing with the gear 61 is mounted on the ear-picking frame 1. The length direction of the rack 12 is along a first direction. The connecting seat 6 is fixedly mounted on the ear-picking frame 1 by bolts, and a raceway hole is provided on the connecting seat 6 to avoid the bolts. The length direction of the raceway hole is along the first direction, thereby facilitating the adjustment of the position of the connecting seat 6 on the ear-picking frame 1. The rack 12 and the ear-picking frame 1 are integrally formed. The rack 12 is composed of teeth provided on one side of the ear-picking frame 1.

[0025] Specifically, in this embodiment, an opening slot for mounting the gear 61 is provided on the ear-picking frame 1, and teeth that mesh with the gear 61 are provided on the side wall of the opening slot. When the gear 61 is rotated, the position of the connecting seat 6 is moved through the meshing between the gear 61 and the teeth. During use, the position of the connecting seat 6 can be adjusted by adjusting the tightness of the bolts and then rotating the gear 61. After the position of the connecting seat 6 is adjusted, the bolts are tightened to fix the connecting seat 6 to the ear-picking frame 1.

[0026] Preferably, in this embodiment, a drive shaft for mounting the gear 61 is rotatably provided on the connecting seat 6, the drive shaft is fixedly connected to the gear 61, and an anti-rotation edge is provided at the end of the drive shaft to facilitate rotation of the drive shaft.

[0027] In some embodiments, the connecting seat 6 may be adopted as follows: Figure 2 The structure shown. See also Figure 2 Two gears 61 are rotatably mounted on the connecting seat 6, and the two gears 61 mesh with each other. The ear-picking frame 1 is also equipped with two racks 12, each meshing with one of the two gears 61. The two racks 12 are spaced apart and parallel, and their length directions are both along a first direction. The arrangement of the two gears 61 and the two racks 12 guides the connecting seat 6 to move along the first direction, improving the stability of the connecting seat 6's position during adjustment.

[0028] Preferably, in this embodiment, a cover plate for covering the gear 61 and rack 12 can also be detachably installed on the picking frame 1.

[0029] In some embodiments, the aforementioned limiting block 4 can be adopted as follows: Figure 3 The structure shown. See also Figure 3 The limiting block 4 has a fixing hole in its center for fixing to the ear-picking frame 1, and multiple limiting surfaces on the limiting block 4 for limiting the movement of the ear-picking plate 2 towards the guide gap. The distance between the multiple limiting surfaces and the axis of the fixing hole is different. The limiting block 4 has a fixing hole in its center, and bolts can be passed through the fixing hole to fix the limiting block 4 to the ear-picking frame 1. In this embodiment, multiple limiting surfaces are provided on the outer side of the limiting block 4, and the multiple limiting surfaces are evenly spaced along the circumference of the limiting block 4. Thus, by rotating the limiting block 4, a suitable limiting surface can be selected to abut against the ear-picking plate 2, realizing the adjustment of the position of the ear-picking plate 2 on the ear-picking frame 1 in the free state.

[0030] Specifically, in this embodiment, multiple limiting surfaces on the limiting block 4 are arranged in parallel pairs, and a limiting groove for avoiding the limiting block 4 is provided on the ear-picking plate 2. When the position of the ear-picking plate 2 on the ear-picking frame 1 changes along the first direction, the two sides of the limiting groove along the first direction can respectively abut against the two opposing limiting surfaces, thereby achieving bidirectional limiting of the ear-picking plate 2 through the limiting block 4.

[0031] In some embodiments, the aforementioned narrow-spaced single-row picking can be adopted as follows: Figure 1 , Figure 4 The structure shown. See also... Figure 1 , Figure 4 The narrow-row picking single-row also includes a gearbox 7. Two picking frames 1 are fixedly mounted on the gearbox 7, and a first sprocket 81 is rotatably mounted on the gearbox 7. A guide frame 9 is mounted on the picking frame 1, and a second sprocket 82 is rotatably mounted on the guide frame 9. A picking chain 83 is drivingly connected between the first sprocket 81 and the second sprocket 82. The end of the picking frame 1 is provided with a flange for fixing to the outer wall of the gearbox 7. The picking frame 1 can be fixed to the outer wall of the gearbox 7 with bolts, which facilitates the disassembly and assembly of the picking frame 1 and facilitates later maintenance. At the same time, the first sprocket 81 is rotatably mounted on the top of the gearbox 7. The first sprocket 81 is drivingly connected to the main shaft inside the gearbox 7 through a bevel gear 61. A guide frame 9 is bolted to the top of the ear-picking frame 1. A second sprocket 82 is rotatably mounted on the guide frame 9 at the end away from the gearbox 7. A stalk-picking chain 83 meshes between the first sprocket 81 and the second sprocket 82. A stalk-picking block is fixedly mounted on the stalk-picking chain 83. Thus, when the stalk-picking chain 83 moves, the stalks can be moved by the stalk-picking block.

[0032] In some embodiments, the guide frame 9 may be adopted as follows: Figure 4 The structure shown. See also Figure 4 The guide frame 9 has a mounting hole near the gearbox 7 for fixing to the ear-picking frame 1. The other end of the guide frame 9 on the ear-picking frame 1 has a degree of freedom to swing around the mounting hole. A mounting hole is provided at one end of the guide frame 9, and the guide frame 9 is fixed by bolts passing through the mounting hole and threadedly connecting to the ear-picking frame 1. The other end of the guide frame 9 can swing around the axis of the mounting hole on the ear-picking frame 1, thereby allowing adjustment of the angle between the guide frame 9 and the guide gap. During use, along the straw conveying direction, the distance between the reeling chains 83 on the two ear-picking frames 1 gradually decreases, facilitating the movement of straw between the two reeling chains 83. Simultaneously, the guide frame 9 can swing around the axis of the mounting hole, allowing adjustment of the angle between the two reeling chains 83 according to the actual site conditions. This accommodates multiple operating modes.

[0033] Specifically, in this embodiment, the spacing between the straw-picking chains 83 on the two straw-picking frames 1 gradually decreases along the straw-conveying direction, thereby guiding the straw's movement.

[0034] Specifically, in this embodiment, a movable block for mounting the second sprocket 82 is installed on the guide frame 9. The position of the movable block on the guide frame 9 has a degree of freedom that can be adjusted along the length of the guide frame 9. The movable block is fixedly mounted on the guide frame 9 with bolts. The second sprocket 82 is rotatably mounted on the movable block. Furthermore, a pushing member is installed on the guide frame 9 to push the movable block away from the first sprocket 81, so as to prevent the tension of the reeling chain 83 from being affected if the bolts loosen.

[0035] In some embodiments, the guide frame 9 may be adopted as follows: Figure 4 , Figure 5 The structure shown. See also... Figure 4 , Figure 5 A fixing component 92 for fixing the guide frame 9 to the ear-picking frame 1 is provided between the end of the guide frame 9 away from the mounting hole and the ear-picking frame 1. The fixing component 92 includes a fixing plate 922 and a fastener 921. The fixing plate 922 is provided on the ear-picking frame 1; the fastener 921 is threadedly connected to the fixing plate 922 and passes through the ear-picking frame 1 and the guide frame 9. The ear-picking frame 1 is provided with an arc-shaped hole to avoid the fastener 921. The fixing component 92 is provided between the guide frame 9 and the ear-picking frame 1. A U-shaped component is fixedly installed on the ear-picking frame 1. A fixing plate 922 is installed inside the U-shaped component. The fastener 921 is a bolt that passes through the guide frame 9 and the U-shaped component and is threadedly connected to the fixing plate 922, thereby fixing the guide frame 9 to the ear-picking frame 1. The U-shaped component is provided with an arc-shaped hole to avoid the fastener 921 when the guide frame 9 swings. When it is necessary to adjust the position of the guide frame 9, the fastener 921 can be loosened to rotate the guide frame 9. After the position adjustment is completed, the guide frame 9 is fixed to the ear-picking frame 1 again by the fastener 921. The structure is simple and the angle of the guide frame 9 can be easily adjusted.

[0036] In some embodiments, the guide frame 9 may be adopted as follows: Figure 3 The structure shown. See also Figure 3A cam 91 is installed on the ear-picking frame 1. The cam 91 has a through hole in its center for mounting onto the ear-picking frame 1. The cam 91 is located on one side of the guide frame 9, and its outer wall can abut against the guide frame 9. The cam 91 also has a through hole in its center for fixing it to the ear-picking frame 1; bolts can be used to fix the cam 91 to the ear-picking frame 1. An arc-shaped surface is provided on the side of the guide frame 9 away from the guide gap, for abutting against the outer surface of the cam 91. In use, the arc-shaped surface on the guide frame 9 can abut against the outer wall of the cam 91 to fix the position of the guide frame 9. Furthermore, rotating the cam 91 can serve as a reference for the rotation angle of the guide frame 9, thus facilitating the operator's adjustment of the angle between the reeling chains 83 on the two ear-picking frames 1.

[0037] Preferably, the cam 91 is provided with graduated lines marked with angles around its perimeter, and the ear-picking frame 1 is provided with a pointer corresponding to the graduated lines. During use, the operator can rotate the cam 91 by following the graduated lines corresponding to the pointers. After fixing the cam 91, the guide frame 9 is rotated so that the fixed arc-shaped surface on the guide frame 9 abuts against the outer wall of the cam 91, thereby adjusting the angle of the corresponding reeling chain 83, making the operation more convenient and efficient.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A single-row ear-picking method with narrow row spacing, characterized in that, include: Two ear-picking frames (1) are provided, with the two ear-picking frames (1) spaced apart. The direction of the spacing between the two ear-picking frames (1) is defined as the first direction. The picking board (2) is freely attached to the top of the picking frame (1), and the picking boards (2) on the two picking frames (1) form a guide gap for the straw to pass through; The hinge frame (3) is hinged at both ends on the ear-picking frame (1). A swing arm is fixedly installed on the hinge frame (3). The swing arm is hinged to the side of the ear-picking plate (2). A limiting block (4) is installed on the picking frame (1) to limit the movement of the picking plate (2) toward another picking frame (1); An elastic element (5) is connected between the hinge frame (3) and the picking frame (1) for pulling the hinge frame (3) to swing toward the guide gap.

2. The narrow-row-spaced single-row ear-picking method as described in claim 1, characterized in that, The top of the picking frame (1) is provided with a support protrusion (11) for supporting the picking plate (2).

3. The narrow-row-spaced single-row ear-picking method as described in claim 1, characterized in that, The ear-picking frame (1) is also equipped with a connecting seat (6) for mounting one end of the elastic element (5), and the connecting seat (6) has a degree of freedom to be adjusted along a first direction on the ear-picking frame (1).

4. The narrow-row-spaced single-row ear-picking method as described in claim 3, characterized in that, A gear (61) is rotatably mounted on the connecting seat (6), and a rack (12) that meshes with the gear (61) is mounted on the ear-picking frame (1). The length direction of the rack (12) is arranged along a first direction.

5. The narrow-row-spaced single-row ear-picking method as described in claim 4, characterized in that, Two gears (61) are rotatably mounted on the connecting seat (6), and the two gears (61) mesh with each other. The picking frame (1) is provided with two racks (12) that mesh with the two gears (61) respectively.

6. The narrow-row-spaced single-row ear-picking method as described in claim 1, characterized in that, The limiting block (4) has a fixing hole in the middle for fixing to the picking frame (1), and the limiting block (4) has a plurality of limiting surfaces for limiting the picking plate (2) to move toward the guide gap, and the distance between the plurality of limiting surfaces and the axis of the fixing hole is different.

7. The narrow-row-spaced single-row ear-picking method as described in claim 1, characterized in that, The narrow-row picking single row also includes a gearbox (7), and the two picking frames (1) are fixedly installed on the gearbox (7). A first sprocket (81) is rotatably installed on the gearbox (7), a guide frame (9) is installed on the picking frame (1), and a second sprocket (82) is rotatably installed on the guide frame (9). A picking chain (83) is connected between the first sprocket (81) and the second sprocket (82).

8. The narrow-row-spaced single-row ear-picking method as described in claim 7, characterized in that, The guide frame (9) has a mounting hole at one end near the gearbox (7) for fixing to the ear-picking frame (1), and the other end of the guide frame (9) has a degree of freedom to swing about the mounting hole at the position on the ear-picking frame (1).

9. The narrow-row-spaced single-row ear-picking method as described in claim 8, characterized in that, A fixing component (92) for fixing the guide frame (9) to the ear-picking frame (1) is provided between the end of the guide frame (9) away from the mounting hole and the ear-picking frame (1). The fixing component (92) includes: A fixing plate (922) is installed on the picking frame (1); Fastener (921) is threaded to the fixing plate (922) and is installed through the picking frame (1) and the guide frame (9). The picking frame (1) is provided with an arc-shaped hole for avoiding the fastener (921).

10. The narrow-row-spaced single-row ear-picking method as described in claim 8, characterized in that, A cam (91) is installed on the ear-picking frame (1). The cam (91) has a through hole in the middle for mounting onto the ear-picking frame (1). The cam (91) is located on one side of the guide frame (9), and the outer wall of the cam (91) can abut against the guide frame (9).

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