Narrow-row-spacing corn ear picking device

Abstract

The utility model provides a narrow-row-spacing corn ear picking device. The narrow-row-spacing corn ear picking device comprises a rack, a seedling pulling chain, a driving wheel, a driven wheel, a chain and ear picking units. According to the narrow-row-spacing corn ear picking device, the machine frame is arranged, and the two oppositely-arranged seedling pulling chains are installed on the machine frame. The two seedling pulling chains are oppositely arranged, and the distance between the chains on the two seedling pulling chains is gradually increased in the moving direction of corn stalks. Therefore, in the process that the chain drives the poking plate to poke the corn stalks, after the corn stalks move to the rear section of the standing grain poking chain, the corn stalks can be separated from the poking plate, move downwards under dragging of the ear picking unit below and stop moving towards the rear portion of the machine frame. And the corns are conveyed to the interior of the rear stock bin through the shifting plate on the chain after being separated from the stalks. When corn is harvested, corn stalks can be prevented from being conveyed backwards, stalk impurities in the corn harvested in the later period are reduced, and the corn harvesting quality is improved.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery technology, specifically relating to a narrow-row-spacing corn ear-picking device. Background Technology

[0002] To increase corn yield during planting, the row spacing between adjacent rows is reduced during sowing to ensure multiple rows are planted within the effective planting area. However, as the row spacing decreases during planting, the corn harvester needs to reduce the spacing between the ear-picking units during harvesting. To reduce the width of the ear-picking units themselves, the sprockets on the harvesting chain are currently set at a relative angle. However, the spacing between the two harvesting chains is currently the same from beginning to end. During harvesting, corn stalks are easily driven into the subsequent hopper by the harvesting chain, increasing impurities in the hopper and affecting the harvesting quality. Utility Model Content

[0003] This utility model provides a narrow-row-spacing corn ear-picking device, which aims to solve the problem in the prior art that corn stalks easily move into the hopper during the operation of corn harvesters, affecting the quality of corn harvesting.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a narrow-row-spacing corn ear-picking device, comprising:

[0005] frame;

[0006] Two reed chains are provided, spaced apart from each other. Each reed chain includes:

[0007] The drive wheel is rotatably mounted on the frame. The drive wheels on the two reeling chains are inclined relative to each other, and the axes of the drive wheels are set at an angle relative to the horizontal plane.

[0008] The driven wheel is arranged parallel to the driving wheel on the frame at a distance, and is rotatably mounted on the frame;

[0009] The chain is respectively meshed with the driving wheel and the driven wheel. Multiple deflectors are installed on the outer side of the chain. The distance between the chains on the two reeling chains gradually decreases from the driving wheel toward the driven wheel.

[0010] The ear-picking unit is mounted on the frame and located below the ear-picking chain.

[0011] In one possible implementation, the frame is equipped with a mounting plate for mounting the driven wheel, the mounting plate having a degree of freedom to adjust its position on the frame in a direction toward or away from the driving wheel.

[0012] In one possible implementation, the rack is further provided with a fixing assembly for securing the mounting plate to the rack, the fixing assembly comprising:

[0013] A fixing plate is installed on both sides of the frame, respectively, along with the mounting plate;

[0014] A fastener is provided, which penetrates the fixing plate. The frame is provided with an elongated through groove for avoiding the fastener. The fastener is threadedly connected to the mounting plate.

[0015] In one possible implementation, the frame is further provided with a push assembly for pushing the driven wheel to move away from the driving wheel.

[0016] In one possible implementation, the pushing component includes:

[0017] The fixing sleeve is fixedly installed on the frame;

[0018] A sliding rod is slidably disposed inside the fixed sleeve, and the sliding rod is fixedly mounted on the mounting plate;

[0019] An elastic element is installed between the fixed sleeve and the sliding rod to push the sliding rod to move outward.

[0020] In one possible implementation, the ear-picking unit includes:

[0021] Two ear-picking plates are provided, which are arranged opposite each other, and the opposite sides of the two ear-picking plates form a guide gap for the corn stalk to pass through.

[0022] There are two stem-pulling rollers, which are rotatably arranged below the picking plate, and the two stem-pulling rollers are arranged in opposite directions.

[0023] In one possible implementation, the frame is further provided with a positioning component for positioning the picking board.

[0024] In one possible implementation, a plurality of L-plates are hinged to the picking plate, one end of the L-plate is hinged to the picking plate, the middle of the L-plate is hinged to the frame, and the other ends of two adjacent L-plates are hinged to a balance bar.

[0025] The solution shown in this application, compared with the prior art, uses a frame with two opposing reeling chains mounted on it. The two reeling chains are positioned opposite each other, and the driving and driven wheels on each chain are inclined relative to each other, thus reducing the width occupied by the reeling chains. Simultaneously, the distance between the chains on the two reeling chains gradually increases along the direction of corn stalk movement. Therefore, during the process of the chains driving the reeling plates to move the corn stalks, when the corn stalks move to the rear section of the reeling chain, they can detach from the reeling plates and move downwards under the pull of the ear-picking unit below, stopping their movement towards the rear of the frame. After detaching from the stalk, the corn is conveyed to the rear hopper via the reeling plates on the chains. During corn harvesting, this avoids the rearward conveyance of corn stalks, reducing stalk impurities in the later harvested corn and improving the quality of the harvested corn. Attached Figure Description

[0026] Figure 1 A schematic diagram of the narrow-row-spacing corn ear-picking device provided in this embodiment of the utility model;

[0027] Figure 2 A schematic diagram of the installation structure of the driven wheel provided in an embodiment of this utility model;

[0028] Figure 3 A schematic diagram of the installation structure of the pushing component provided in an embodiment of this utility model;

[0029] Figure 4 This is a schematic diagram of the tassel-picking unit provided in an embodiment of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Frame; 2. Reeling chain; 21. Drive wheel; 22. Driven wheel; 23. Chain; 231. Reeling plate; 3. Ear picking unit; 31. Ear picking plate; 32. Stalk pulling roller; 4. Mounting plate; 5. Fixing assembly; 51. Fixing plate; 52. Fixing component; 6. Pushing assembly; 61. Fixing sleeve; 62. Sliding rod; 63. Elastic component; 7. Positioning assembly; 71. L-plate; 72. Balance bar. Detailed Implementation

[0032] 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.

[0033] Please refer to the following: Figures 1 to 4The present invention provides a narrow-row-spacing corn ear-picking device. The narrow-row-spacing corn ear-picking device includes a frame 1, a reeling chain 2, a drive wheel 21, a driven wheel 22, a chain 23, and an ear-picking unit 3. There are two reeling chains 2, spaced apart. Each reeling chain 2 includes: a drive wheel 21 rotatably mounted on the frame 1, with the drive wheels 21 on both chains inclined relative to each other, and their axes forming an angle with the horizontal plane; a driven wheel 22, spaced parallel to the drive wheels 21 and rotatably mounted on the frame 1; a chain 23 meshing with both the drive wheel 21 and the driven wheel 22, with multiple levers 231 mounted on the outer side of the chain 23; the distance between the chains 23 on the two reeling chains gradually decreases from the drive wheel 21 towards the driven wheel 22; and the ear-picking unit 3 is mounted on the frame 1 and located below the reeling chains 2.

[0034] The narrow-row-spacing corn picking device provided in this embodiment, compared with the prior art, features a frame 1 on which two opposing picking chains 2 are mounted. The two picking chains 2 are positioned opposite each other, with the driving wheel 21 and driven wheel 22 on each chain 2 inclined relative to each other, thus reducing the width occupied by the picking chains 2. Simultaneously, the spacing between the chains 23 on the two picking chains 2 gradually increases along the direction of corn stalk movement. Therefore, during the process of the chain 23 driving the picking plate 231 to move the corn stalk, when the corn stalk moves to the rear section of the picking chain 2, it can detach from the picking plate 231 and move downwards under the pull of the picking unit 3 below, stopping its movement towards the rear of the frame 1. The corn, after detaching from the stalk by the picking unit 3, is then conveyed to the rear hopper via the picking plate 231 on the chain 23. During corn harvesting, this avoids the corn stalks being conveyed backwards, reducing stalk impurities in the later harvested corn and improving the quality of the harvested corn.

[0035] Specifically, in this embodiment, the deflector plate 231 is inclinedly arranged on the chain 23. When the deflector plate 231 moves above the ear-picking unit 3, the deflector plates 231 on the two ear-picking chains 2 are arranged opposite each other and perpendicular to the conveying direction of the chain 23, so that the deflector plates 231 on the two material strips can pass through.

[0036] In some embodiments, the driven wheel 22 may be as follows: Figure 2 , Figure 3 The structure shown. See also... Figure 2 , Figure 3A mounting plate 4 for mounting the driven wheel 22 is installed on the frame 1. The position of the mounting plate 4 on the frame 1 is adjustable in the direction of approaching or moving away from the driving wheel 21. The driven wheel 22 is rotatably mounted on the mounting plate 4. The position of the mounting plate 4 on the frame 1 can be adjusted along the direction of the connecting line between the axes of the driven wheel 22 and the driving wheel 21, thereby ensuring that the chain 23 is kept taut. This ensures the normal operation of the deflector 231 on the chain 23.

[0037] In some embodiments, the fixing component 5 described above may be as follows: Figure 2 The structure shown. See also Figure 2 The frame 1 is also equipped with a fixing assembly 5 for fixing the mounting plate 4 to the frame 1. The fixing assembly 5 includes a fixing plate 51 and a fixing member 52. The fixing plate 51 and the mounting plate 4 are respectively installed on both sides of the frame 1; the fixing member 52 is installed through the fixing plate 51, and the frame 1 is provided with an elongated through groove to avoid the fixing member 52. The fixing member 52 is threadedly connected to the mounting plate 4. The frame 1 is provided with an elongated through groove for installing the fixing member 52, and the fixing plate 51 and the mounting plate 4 are respectively located on both sides of the elongated through groove. The fixing member 52 is a bolt, and at least two fixing members 52 are provided between the fixing plate 51 and the mounting plate 4. After adjusting the position of the mounting plate 4, the fixing plate 51 can be placed on the frame 1, and then the fixing member 52 can be tightened on the mounting plate 4. The frame 1 is pressed between the mounting plate 4 and the fixing plate 51, thereby fixing both the mounting plate 4 and the fixing plate 51 to the frame 1. The structure is simple and the operation is convenient.

[0038] In some embodiments, the mounting plate 4 described above can be as follows: Figure 3 The structure shown. See also Figure 3 The frame 1 is also equipped with a push assembly 6 for pushing the driven wheel 22 to move away from the driving wheel 21. The push assembly 6 is also mounted on the frame 1 to push the driven wheel 22 to move away from the driving wheel 21. Preferably, the push assembly 6 moves the driven wheel 22 by pushing the mounting plate 4. Simultaneously, the push assembly 6 allows the driven wheel 22 to move automatically when the fixing member 52 and the fastener are loosened, thus keeping the chain 23 taut.

[0039] In some embodiments, the aforementioned actuating component 6 may employ, for example... Figure 3 The structure shown. See also Figure 3The driving component 6 includes a fixed sleeve 61, a sliding rod 62, and an elastic element 63. The fixed sleeve 61 is fixedly mounted on the frame 1; the sliding rod 62 is slidably disposed inside the fixed sleeve 61 and fixedly mounted on the mounting plate 4; the elastic element 63 is installed between the fixed sleeve 61 and the sliding rod 62, and is used to push the sliding rod 62 to move outward. The fixed sleeve 61 is fixedly mounted on the frame 1, and the axis of the fixed sleeve 61 is set along the moving direction of the mounting plate 4. The elastic element 63 is installed inside the fixed sleeve 61, and the sliding rod 62 is slidably disposed inside the fixed sleeve 61. One end of the sliding rod 62 is slidably disposed inside the fixed sleeve 61, and the other end of the sliding rod 62 is fixedly mounted on the mounting plate 4. The force of the elastic element 63 can push the sliding rod 62 to move away from the driving wheel 21, thereby driving the mounting plate 4 to move away from the driving wheel 21. The structure is simple and the operation is convenient.

[0040] Preferably, in this embodiment, a connecting plate for connecting to the end of the sliding rod 62 is bent on the mounting plate 4, and a threaded hole is provided at the end of the sliding rod 62, so that the connecting plate can be fixed to the end of the sliding rod 62 with bolts.

[0041] In some embodiments, the above-mentioned ear-picking unit 3 may employ, as follows: Figure 4 The structure shown. See also Figure 4 The ear-picking unit 3 includes ear-picking plates 31 and stalk-pulling rollers 32. There are two ear-picking plates 31, arranged opposite each other, with their opposite sides forming a guide gap for the corn stalk to pass through. There are also two stalk-pulling rollers 32, each rotatably positioned below the ear-picking plates 31, with opposite directions of rotation. The two ear-picking plates 31 are located on the same horizontal plane, and their adjacent sides form a guide gap for the corn stalk to pass through. When the corn stalk moves into the guide gap, it is pulled downwards by the two tension rollers 32 located below the ear-picking plates 31, causing the corn to lap onto the pull plate 231 on the chain 23, thereby pulling the corn off the stalk.

[0042] Preferably, in this embodiment, a plurality of stem-pulling plates are fixedly installed on the outer side of the stem-pulling roller 32. The length direction of the plurality of stem-pulling plates is arranged along the axial direction of the stem-pulling roller 32, and the plurality of stem-pulling plates are evenly spaced along the circumference of the stem-pulling roller 32. When the two stem-pulling rollers 32 rotate, the side of the two stem-pulling rollers 32 near the guide gap flips downward, thereby driving the corn stalk to move downward.

[0043] Specifically, the structure of the stem-pulling roller 32 in this embodiment adopts existing technology and will not be described further here.

[0044] In some embodiments, the above-mentioned picking plate 31 can be adopted as follows: Figure 4The structure shown. See also Figure 4 The frame 1 is also equipped with a positioning component 7 for positioning the ear-picking plate 31. The positioning component 7 can ensure the stability of the installation position of both ends of the ear-picking plate 31 on the frame 1, and ensure the uniformity of the overall width of the guide gap formed by the two ear-picking plates 31. This ensures the stability of the corn stalk movement within the guide gap during the harvesting process.

[0045] In some embodiments, the above-mentioned picking plate 31 can be adopted as follows: Figure 4 The structure shown. See also Figure 4 The positioning component 7 includes L-plates 71 and balance bars 72. Multiple L-plates 71 are hinged to the picking plate 31. One end of each L-plate 71 is hinged to the picking plate 31, and the middle of each L-plate 71 is hinged to the frame 1. The other ends of two adjacent L-plates 71 are hinged to the balance bars 72. Each L-plate 71 includes two wing plates arranged at an angle, with the connection point of the two wing plates hinged to the frame 1. One end of one wing plate is hinged to the picking plate 31, and the end of the other wing plate is hinged to the balance bar 72. Multiple L-plates 71 are spaced apart along the length of the picking plate 31. When the position of the picking plate 31 is fixed, the stability of the positions at both ends of the picking plate 31 can be ensured by the guidance of the multiple L-plates 71 and the balance bars 72. Therefore, after adjusting the position of the picking plate 31, the stability of the width of the guide gap at both ends can be guaranteed.

[0046] Specifically, in this embodiment, the L-plate 71 allows for convenient fine-tuning of the position of the ear-picking plate 31. It also ensures the relative positions of the two ends of the ear-picking plate 31.

[0047] Specifically, in this embodiment, the frame 1 is also threaded with fastening bolts for fixing the picking plate 31 to the frame 1, and the picking plate 31 is provided with clearance holes for avoiding the fastening bolts.

[0048] 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 narrow row spacing corn picker apparatus characterized by, The utility model relates to a corn picker, including: Frame (1); Dialling chain (2), two, two dialling chain (2) interval setting, dialling chain (2) include: Driving wheel (21), rotation setting in frame (1), two dialling chain (2) on driving wheel (21) relative oblique setting, and driving wheel (21) axis is relative to horizontal plane and is arranged at the angle of angle setting; From the driving wheel (22) with driving wheel (21) interval parallel setting in frame (1), and rotation setting in frame (1); Chain (23), with driving wheel (21) and from the driving wheel (22) each other meshing setting, chain (23) outside installation has a plurality of dialling board, two chain (23) between dialling chain (2) gradually smaller from driving wheel (21) to the direction close to from the driving wheel (22) spacing; Ear picking unit (3), install in frame (1), and be located dialling chain (2) below.

2. The narrow row corn picker as set forth in claim 1, wherein, Frame (1) install with the mounting plate (4) for installing from the driving wheel (22), the mounting plate (4) on frame (1) position has along the direction close to or away from driving wheel (21) adjustment freedom.

3. The narrow row spacing corn picker as set forth in claim 2, wherein, Frame (1) still be provided with the fixing assembly (5) for fixing mounting plate (4) to frame (1), the fixing assembly (5) includes: Fixed plate (51), with the mounting plate (4) respectively install in frame (1) both sides; Fixing piece (52), through fixed plate (51) setting, frame (1) be provided with for avoiding fixing piece (52) long circular through slot, fixing piece (52) with mounting plate (4) screw connection.

4. The narrow row spacing corn picker apparatus of claim 2, wherein, Frame (1) still be provided with the push assembly (6) for pushing from the driving wheel (22) to the direction away from driving wheel (21) movement.

5. The narrow row spacing corn picker apparatus of claim 4, wherein, The push assembly (6) includes: Fixed sleeve (61), fixedly installed on the frame (1); Sliding rod (62), slidingly disposed inside the fixed sleeve (61), the sliding rod (62) is fixedly installed on the mounting plate (4); Elastic member (63), installed between the fixed sleeve (61) and the sliding rod (62), for pushing the sliding rod (62) to move outward.

6. The narrow row spacing corn picker apparatus of claim 1, wherein, The ear picking unit (3) includes: Ear picking board (31), two, two ear picking board (31) are oppositely arranged, and the opposite sides of the two ear picking board (31) form a guide gap for the corn stalk to pass through; Pulling stem roller (32), two, two pulling stem rollers (32) are rotatably arranged below the ear picking board (31), and the two pulling stem rollers (32) are oppositely arranged.

7. The narrow row spacing corn picker apparatus of claim 6, wherein, Frame (1) is further provided with a positioning assembly (7) for positioning the position of the ear picking board (31).

8. The narrow row spacing corn picker apparatus of claim 7, wherein, The positioning assembly (7) comprises L plates (71) and balance rods (72), a plurality of L plates (71) are hingedly arranged on the ear picking plate (31), one end of the L plate (71) is hingedly connected with the ear picking plate (31), the middle part of the L plate (71) is hingedly arranged on the rack (1), and the other end of adjacent two L plates (71) is hingedly connected with a balance rod (72).

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