Intermittent conveying mechanism of corn header

Abstract

The invention discloses an intermittent conveying mechanism for a corn header, which comprises a loading hopper and an overturning driving part, the tail end of a conveying channel of the corn header, the initial position of the loading hopper and the height of a material receiving bottom plate at the bottom of an auger are sequentially arranged in a high-low-high state, and corn falls to the loading hopper from the tail end of the conveying channel to be received; the overturning driving part is arranged below the loading hopper and used for intermittently driving the loading hopper to overturn backwards and reset forwards, and when the packing auger rotates to the position corresponding to the loading hopper in the neutral position, the overturning driving part drives the loading hopper to overturn backwards, so that corns on the loading hopper are poured backwards into the neutral position of the packing auger, and the corns on the loading hopper return forwards. And conveying is continued along with continuous rotation of the auger. Corn is poured into the empty space of the auger from the loading hopper at the tail end of the conveying channel, collision between the corn and the edge of the solid spiral blade of the auger is avoided, the corn is stably and orderly conveyed, the yield of harvested corn is guaranteed, and loss is reduced.

Description

Technical Field

[0001] The invention relates to agricultural mechanical equipment, more specifically to an intermittent conveying mechanism for a corn cutting platform. Background Art

[0002] In the prior art, the corn harvester of a small corn harvester has multiple groups of cutting and conveying channels. After the harvester cuts off the root stalk of the corn, the cutting part at the bottom of each group of conveying channels pulls the entire corn stalk downward and cuts it. The corn on the stalk is blocked by the blocking part and conveyed to the end auger, which collects several groups of corn and conveys them to the discharge port on one side. However, when the corn enters the auger, there is a risk of collision with the edge of the continuously rotating auger. If a hard collision or squeezing occurs, the corn itself will be directly injured, resulting in a decrease in the yield of corn harvesting, which is a direct economic loss for the user. Compared with ordinary belt conveying mechanisms, the auger has many advantages such as simple structure, wide conveying coverage, and no impurities stuck in the structural gap. Therefore, it is necessary to optimize the corn harvester with an auger conveying structure to avoid damage to the corn by the auger. Summary of the invention

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an intermittent conveying mechanism for a corn harvesting platform, thereby avoiding the defects in the above prior art, reducing damage to corn, and improving the yield rate of corn harvest.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an intermittent conveying mechanism for a corn cutting platform, comprising a cutting platform bracket, a plurality of cutting parts are horizontally arranged at the front of the cutting platform bracket, guide walls for guiding the corn stalks to correspond to the cutting parts are arranged on both sides of the cutting parts, a conveying channel is formed on the upper part of the cutting parts and corn blocking parts are arranged on both sides of the conveying channel, an auger is horizontally arranged at the end of the conveying channel, a discharge port is arranged at the rear side of one end of the auger, an intermittent conveying mechanism is also arranged between the end of the conveying channel and the auger, the intermittent conveying mechanism comprises a loading hopper and a turning drive member, the end of the conveying channel, The initial position of the loading hopper and the height of the material receiving bottom plate at the bottom of the auger are arranged in sequence in a high and low state. Corn falls from the end of the conveying channel to the loading hopper for receiving. A flip driving member is arranged under the loading hopper to intermittently drive the loading hopper to flip backward and reset forward. When the idle gear of the auger rotates to the position corresponding to the loading hopper, the flip driving member drives the loading hopper to flip backward, so that the corn on the loading hopper pours backward into the idle gear of the auger, and continues to be transported as the auger continues to rotate; after the loading hopper is reset forward by the flip driving member, it will receive the next batch of corn.

[0005] As an improvement, the flipping drive component includes an arc-shaped arm, a driving gear and a driving motor. The arc-shaped arm can be slidably arranged in an arc-shaped track. A loading hopper is arranged on the upper part of the arc-shaped arm. A rack is arranged on an arc-shaped surface on one side of the arc-shaped arm and meshes with the driving gear for transmission. The driving motor is connected to the driving gear for transmission. When the driving motor is running, it drives the arc-shaped arm and the loading hopper thereon to perform an arc-shaped movement.

[0006] As an improvement, the flipping drive member includes an arc-shaped arm, a driving gear, a driving rack and a driving cylinder. The arc-shaped arm can be slidably arranged in an arc-shaped track. A loading hopper is arranged on the upper part of the arc-shaped arm. A rack is arranged on an arc-shaped surface on one side of the arc-shaped arm and meshes with the driving gear for transmission. The cylinder shaft of the driving cylinder is connected to the driving rack and meshes with the driving gear through the driving rack. When the driving cylinder is running, the arc-shaped arm and the loading hopper thereon are driven to perform an arc motion.

[0007] As an improvement, a number of rollers or rolling teeth that contact and cooperate with the arc arm are arranged on the upper and lower arc walls of the arc track. When the arc arm moves in an arc along the arc track, the arc arm is rolled and supported relative to the arc arm by a number of rollers or rolled and supported by a number of rolling teeth that mesh with the rack.

[0008] As an improvement, the loading hopper has vertical walls on both sides and front and rear inclined walls. The front inclined wall is used for corn to slide from the end of the conveying channel to the loading hopper, and the rear inclined wall is used for the corn to pour backwards to the auger after the loading hopper is flipped backwards.

[0009] As an improvement, the loading hopper is further provided with a downwardly extending arc-shaped blocking wall on the side facing the conveying channel. When the loading hopper flips backward to dump the corn, the blocking wall rises to the end of the corresponding conveying channel to block the corn.

[0010] The beneficial effect of the present invention is that it avoids the possibility of damage caused by the traditional structure of directly conveying corn to the auger. By first buffering the corn and then transferring the corn from the loading hopper at the end of the conveying channel to the empty space of the auger, the collision between the corn and the edge of the spiral blade of the auger is avoided, and the corn is conveyed stably and orderly, which ensures the corn harvest yield and reduces losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The three-dimensional structure of the corn cutting platform of the present invention is shown in FIG. Figure 1 .

[0012] Figure 2 The three-dimensional structure of the corn cutting platform of the present invention is shown in FIG. Figure 2 .

[0013] Figure 3 It is a schematic diagram of the side longitudinal cross-sectional structure of the intermittent conveying mechanism and the first embodiment of the auger of the present invention.

[0014] Figure 4 It is a schematic diagram of the side longitudinal cross-sectional structure of the second embodiment of the buffer conveying mechanism and the auger of the present invention. DETAILED DESCRIPTION

[0015] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0016] like Figure 1 , 2 , 3, and 4 are specific embodiments of the intermittent conveying mechanism of the corn cutting table of the present invention. The drawings only express the mutual coordination relationship between the structures. The positions and size ratios of the specific structures can be reasonably adjusted according to the actual product conditions, and do not limit the scope of protection of the present invention.

[0017] The specific embodiment includes a header bracket 1, a plurality of cutting parts 2 are horizontally arranged at the front of the header bracket 1, guide walls 3 for guiding corn stalks to correspond to the cutting parts 2 are arranged on both sides of the cutting parts 2, a conveying channel 4 is formed on the upper part of the cutting part 2 and corn blocking parts 41 are arranged on both sides of the conveying channel 4, an auger 5 is horizontally arranged at the end of the conveying channel 4, a discharge port 6 is arranged at the rear side of one end of the auger 5, an intermittent conveying mechanism 7 is also arranged between the end of the conveying channel 4 and the auger 5, the intermittent conveying mechanism 7 includes a loading hopper 71 and a flip driving member 72, the end of the conveying channel 4, the initial position of the loading hopper 71, and the bottom of the auger 5 The heights of the receiving bottom plates 51 are arranged in a high-low state. The corn falls from the end of the conveying channel 4 to the loading hopper 71 for receiving. The flip driving member 72 is arranged below the loading hopper 71 and is used to intermittently drive the loading hopper 71 to flip backward and reset forward. When the idle gear of the auger 5 rotates to the position corresponding to the loading hopper 71, the flip driving member 72 drives the loading hopper 71 to flip backward, so that the corn on the loading hopper 71 pours backward into the idle gear of the auger 5, and continues to be conveyed as the auger 5 continues to rotate; after the loading hopper 71 is reset forward by the flip driving member 72, it receives the next batch of corn.

[0018] When the present invention is in use, the header bracket 1 is installed on the front part of the main body of the harvester, and the user drives the corn harvester to correspond to the corn plants to be harvested. As the corn harvester moves forward, the corn stalks are gathered to the cutting part 2 from the guide walls 3 on both sides. The cutting part 2 is a pair of cutting shafts, which rotate relative to each other to pull the corn stalks downward and cut them. After the corn cobs on the stalks are cut off, they are blocked by the corn blocking part 41. As the harvester moves forward and the corn plants and corn entering the conveying channel 4 are pushed backward, the corn conveyed to the conveying channel 4 by multiple groups of corn conveyors 4 arrives. The corn falls into the loading hopper 71 for collection at the end of the conveying channel 4. The driving of the loading hopper 71 by the flipping driving member 72 can be set according to the number of rotations of the auger 5. For example, one or two rotations of the auger 5 is one cycle. After running one or two circles, when the auger 5 of the next circle runs to the loading hopper 71 facing forward in the idle space, the flipping driving member 72 starts to flip the loading hopper 71 backward, and the corn is poured backward into the idle space of the auger 5. As the auger 5 continues to rotate, the corn poured from the loading hoppers 71 is conveyed along the auger 5 to the discharge port 6 at the output end. The so-called idle space of the auger 5, i.e., the part of the spiral blades above the circumferential position, is determined by the rotation speed of the auger 5 to complete the backward flipping and dumping of the corn when the idle space corresponds to the front loading hopper 71, which can effectively avoid the hard collision between the corn and the auger 5; after the loading hopper 71 is reset forward, the next batch of corn can be taken over, and the corresponding idle space continues to flip and dump backward after the auger 5 has run one or two circles. The corn transportation method of the present invention also realizes the intermittent output of corn, that is, within the rated time of the auger 5 running one or two circles, the corn is first collected at the loading hopper 71, and then transported into the auger 5 to the output end, which well determines the wave of corn transported in the auger 5, and the corn that arrives at the discharge port 6 and is sent to the subsequent process is orderly and the quantity is within a certain range, which is convenient for the processing of the subsequent process, avoiding the corn crowding and squeezing caused by the large wave of corn entering the auger 5 and being transported from the discharge port 6 to the subsequent process, and generally ensuring the corn harvesting yield and reducing losses.

[0019] As an improved specific implementation method, the flip driving member 72 includes an arc arm 721, a driving gear 722 and a driving motor 723. The arc arm 721 can be slidably arranged in an arc track 724. The loading hopper 71 is arranged on the upper part of the arc arm 721. A rack is arranged on the arc surface of one side of the arc arm 721 and meshes with the driving gear 722 for transmission. The driving motor 723 is connected to the driving gear 722 for transmission. When the driving motor 723 is running, it drives the arc arm 721 and the loading hopper 71 thereon to perform an arc motion.

[0020] like Figure 3As shown, in the first embodiment, the arc-shaped space is formed by the arc-shaped track 724 for the arc-shaped arm 721 to perform circular motion along the arc, and a rack is set on the inner or outer arc surface thereof, which is externally connected to the drive motor 723 through the meshing drive gear 722 for transmission. Through the forward or reverse rotation of the drive motor 723, the extension and retraction of the arc-shaped arm 721 can be flexibly controlled, thereby controlling the backward flipping and forward reset of the loading bucket 71. The movement of the arc-shaped arm 721 in the arc-shaped track 724 stably realizes the dumping of corn from the loading bucket 71, and because of its stable state, it will not cause shaking when the harvester is in operation, so that the loading bucket 71 can be dumped accurately.

[0021] As an improved specific implementation method, the flip driving member 72 includes an arc arm 721, a driving gear 722, a driving rack 727 and a driving cylinder 728. The arc arm 721 can be slidably arranged in an arc track 724. The loading hopper 71 is arranged on the upper part of the arc arm 721. A rack is arranged on the arc surface of one side of the arc arm 721 and meshes with the driving gear 722 for transmission. The cylinder shaft of the driving cylinder 728 is connected to the driving rack 727, and meshes with the driving gear 722 through the driving rack 727. When the driving cylinder 728 is running, the arc arm 721 and the loading hopper 71 thereon are driven to perform an arc movement.

[0022] like Figure 4 As shown, in the second embodiment, the arc-shaped space formed by the arc-shaped track 724 allows the arc-shaped arm 721 to perform circular motion along the arc, and a rack is set on the inner or outer arc surface thereof, and the drive rack 727 and the drive cylinder 728 are connected to the outside in sequence through the meshing drive gear 722 for transmission. By extending or retracting the drive cylinder 728, the extension and retraction of the arc-shaped arm 721 can be accurately controlled, thereby controlling the backward flipping and forward reset of the loading bucket 71. The movement of the arc-shaped arm 721 in the arc-shaped track 724 stably realizes the dumping of corn from the loading bucket 71, and because of its stable state, it will not cause shaking when the harvester is in operation, so that the loading bucket 71 can be dumped accurately.

[0023] As an improved specific implementation method, a plurality of rollers 725 or rolling teeth 726 that contact and cooperate with the arc arm 721 are arranged on the upper and lower arc walls of the arc track 724. When the arc arm 721 moves in an arc along the arc track 724, the plurality of rollers 725 provide rolling support relative to the arc arm 721 or the plurality of rolling teeth 726 engage with the rack for rolling support.

[0024] like Figure 3 , 4As shown, in order to further improve the smoothness of the movement of the arc arm 721 and reduce the wear between the structures, a plurality of rollers 725 or gear rolls 726 are further provided. The provision method can be that a groove is provided on the inner side of the arc track 724 and installed through a rotating shaft, and a gear roll 726 is provided on the side with the rack, and a roller 725 is provided on the side of the arc surface. The number of rollers 725 can be arranged at intervals according to the specific arc length of the arc arm 721 to achieve a balance between performance and cost.

[0025] As an improved specific implementation, the loading hopper 71 has vertical walls on both sides and front and rear inclined walls 711. The front inclined wall 711 is used for corn to slide from the end of the conveying channel 4 to the loading hopper 71, and the rear inclined wall 711 is used for the corn to pour backwards to the auger 5 after the loading hopper 71 is flipped backwards.

[0026] like Figure 3 , 4 As shown, the vertical walls on both sides perform normal corn limiting. As an optimization, the front and rear inclined walls 711 allow the corn to roll, that is, the front inclined wall 711 buffers the corn falling at the end of the conveying channel 4 to make it slide down, and the rear inclined wall 711 guides the corn to slide down and dump toward the auger 5 after the loading hopper 71 flips backwards, making the transfer of the corn smoother. The figure is only a structural diagram. In actual implementation, the slope of the inclined wall 711 can be set to be more inclined according to the situation to meet the needs of receiving and transporting.

[0027] As an improved specific implementation method, the loading hopper 71 is further provided with a downwardly extending arc-shaped blocking wall 712 on the side facing the conveying channel 4. When the loading hopper 71 flips backward to dump the corn, the blocking wall 712 rises to the end of the corresponding conveying channel 4 to block the corn.

[0028] like Figure 3 , 4 As shown, after the loading hopper 71 rises, the arc-shaped blocking wall 712 rises to effectively block the end of the conveying channel 4, ensuring that the corn is blocked in an orderly manner. After the loading hopper 71 and the arc-shaped blocking wall 712 descend, the loading hopper 71 can continue to receive the corn falling at the end of the conveying channel 4.

[0029] The above are only preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An intermittent conveying mechanism for a corn cutting table, comprising a cutting table support (1), a plurality of cutting parts (2) are arranged horizontally at the front of the cutting table support (1), guide walls (3) are arranged on both sides of the cutting parts (2) for guiding corn stalks to correspond to the cutting parts (2), a conveying channel (4) is formed on the upper part of the cutting parts (2) and corn blocking parts (41) are arranged on both sides of the conveying channel (4), an auger (5) is arranged horizontally at the end of the conveying channel (4), and a discharge port (6) is arranged at the rear side of one end of the auger (5), characterized in that: An intermittent conveying mechanism (7) is also provided between the end of the conveying channel (4) and the auger (5), and the intermittent conveying mechanism (7) comprises a loading hopper (71) and a turning drive member (72). The end of the conveying channel (4), the initial position of the loading hopper (71), and the height of the receiving bottom plate (51) at the bottom of the auger (5) are arranged in sequence in a high-low state. Corn falls from the end of the conveying channel (4) to the loading hopper (71) for receiving. The turning drive member (72) is provided at The lower part of the loading hopper (71) is used to intermittently drive the loading hopper (71) to flip backward and reset forward. When the idle position of the auger (5) rotates to a position corresponding to the loading hopper (71), the flip driving member (72) drives the loading hopper (71) to flip backward, so that the corn on the loading hopper (71) is poured backward into the idle position of the auger (5), and continues to be transported as the auger (5) continues to rotate; after the loading hopper (71) is reset forward by the flip driving member (72), it receives the next batch of corn.

2. The intermittent conveying mechanism for corn header according to claim 1, characterized in that: The flip driving member (72) comprises an arc-shaped arm (721), a driving gear (722) and a driving motor (723); the arc-shaped arm (721) is slidably arranged in an arc-shaped track (724); a loading hopper (71) is arranged on the upper part of the arc-shaped arm (721); a rack is arranged on an arc-shaped surface on one side of the arc-shaped arm (721) and meshes with the driving gear (722) for transmission; the driving motor (723) is connected to the driving gear (722) for transmission; when the driving motor (723) is running, the arc-shaped arm (721) and the loading hopper (71) thereon are driven to perform an arc-shaped movement.

3. The intermittent conveying mechanism for corn header according to claim 1, characterized in that: The flip driving member (72) comprises an arc-shaped arm (721), a driving gear (722), a driving rack (727) and a driving cylinder (728); the arc-shaped arm (721) is slidably arranged in an arc-shaped track (724); a loading hopper (71) is arranged on the upper part of the arc-shaped arm (721); a rack is arranged on an arc-shaped surface on one side of the arc-shaped arm (721) and meshes with the driving gear (722) for transmission; a cylinder shaft of the driving cylinder (728) is connected to the driving rack (727) and meshes with the driving gear (722) for transmission; when the driving cylinder (728) is in operation, the arc-shaped arm (721) and the loading hopper (71) thereon are driven to perform an arc-shaped movement.

4. A corn cutting platform intermittent conveying mechanism according to claim 2 or 3, characterized in that: A plurality of rollers (725) or rolling teeth (726) that are in contact with and matched with the arc-shaped arm (721) are arranged on the upper and lower arc-shaped walls of the arc-shaped track (724); when the arc-shaped arm (721) moves in an arc shape along the arc-shaped track (724), the plurality of rollers (725) provide rolling support relative to the arc-shaped arm (721) or the plurality of rolling teeth (726) mesh with the rack for rolling support.

5. The intermittent conveying mechanism for corn headers according to claim 1, 2 or 3, characterized in that: The loading hopper (71) has vertical walls on both sides and front and rear inclined walls (711), the front inclined wall (711) is used for corn to slide from the end of the conveying channel (4) to the loading hopper (71), and the rear inclined wall (711) is used for the corn to be dumped backwards to the auger (5) after the loading hopper (71) is turned backwards.

6. The intermittent conveying mechanism for corn headers according to claim 1, 2 or 3, characterized in that: The loading hopper (71) is also provided with a downwardly extending arc-shaped blocking wall (712) on the side facing the conveying channel (4); when the loading hopper (71) turns backward to dump the corn, the blocking wall (712) rises to the end of the corresponding conveying channel (4) to block the corn.

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