Digging separation and handover conveying device of onion harvester

Abstract

The utility model provides a digging separation and handover conveying device of an onion harvester, which belongs to the technical field of crop collection and comprises a separation frame and a conveying frame which are arranged at a blanking position of the harvester, an arc grid handover hopper is arranged on one side, close to the separation frame, of the conveying frame, and the arc grid handover hopper is positioned below the blanking position of the separation frame. The separating frame is provided with the separating conveying belt, the bent rod strips and the straight rod strips are alternately arranged to form a conveying path capable of adapting to crops of different shapes, the crops are prevented from sliding off from the separating conveying belt in the separating and conveying process, and therefore the stability of the conveying process after the crops are separated is guaranteed; crop bulbs are driven to the bottom of the inner wall of the conveying frame from the arc grid connecting hopper through the conveying scraping plate, the crop bulbs are prevented from falling off through the conveying scraping plate attached to the bottom of the inner wall of the conveying frame, and therefore the stability of the conveying process after the crop bulbs are excavated and separated is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of crop harvesting technology, specifically to a digging, separating, and conveying device for an onion harvester. Background Technology

[0002] In the harvesting of root and tuber crops such as onions, digging, separating, and conveying are crucial stages. Currently, various separation devices exist for root and tuber crops, such as bar screens, comb-tooth screens, vibrating screens, and drum screens. Simultaneously, various transfer conveying devices are used to transport the separated crops to subsequent processing stages.

[0003] After harvesting, root crops such as onions are separated from their roots and stems using a rod-type separating device, such as the belt rod type, chain rod type, and hook rod type. The belt rod type consists of a conveyor belt and conveyor rods; the chain rod type connects the rods with a chain; and the hook rod type has a unique hook-shaped rod structure. They differ in terms of contact area with the soil, vibration stability, and wear resistance.

[0004] Comb-tooth separators feature comb-tooth separation bars at the rear of the digging shovel, which separate the mixture. Vibrating screens rely on eccentric wheels or other drive mechanisms to reciprocate the screen and separate crops and impurities. Drum screens allow the material to rotate with the drum, separating it into layers based on different movement trajectories.

[0005] Then, it consists of conveying components such as conveyor belts or conveyor bars, scrapers, etc., and the task of transporting crops such as onions from the separation device to the subsequent device is completed by adjusting parameters such as conveying speed and inclination angle.

[0006] The above-disclosed technical solutions reveal the following problems: certain types of rod-type screens, such as hook-type screens, wear out quickly and have short service lives; comb-type screens are prone to clogging; vibrating screens have complex structures, and drum screens have poor separation performance. Among rod-type screens, different types of rod-type separation devices have different defects. For example, although rod-type screens have good performance in contact with soil, they also have the risk of reduced conveying capacity when not specifically optimized for onion crops.

[0007] If the operating speed of the transfer conveyor is not matched with that of the separation device, such as too fast speed damaging the onions and too slow speed causing onions to pile up and be wasted, and if the tilt angle of the transfer conveyor is not set properly, it may affect the lifting and conveying of onions and the overall size of the harvester. In response, we have proposed a digging, separating and transfer conveying device for an onion harvester.

[0008] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background section of this application, and therefore may include prior art information that does not constitute prior art information known to those skilled in the art. Utility Model Content

[0009] This utility model aims to solve at least one of the technical problems existing in the prior art or related technologies. To address the problems of onion bulb separation and conveying in the prior art, this utility model provides a digging, separating, and transferring conveying device for an onion harvester. It employs a conveying and separating structure combining curved and straight rods with a scraping conveying structure to achieve the effects of protecting crops and improving harvesting efficiency. The specific technical solution is as follows:

[0010] A digging, separating, and conveying device for an onion harvester includes a separating frame and a conveying frame disposed at the material discharge point of the harvester. An arc-grid conveying hopper is disposed on the side of the conveying frame near the separating frame, and the arc-grid conveying hopper is located below the material discharge point of the separating frame. A separating conveyor belt is disposed on the separating frame, and straight bars are evenly disposed on the separating conveyor belt. A bent bar is disposed between every two adjacent straight bars and fixed to the separating conveyor belt. A conveying conveyor belt is disposed on the conveying frame, and conveying scrapers that adhere to the bottom of the inner wall of the conveying frame are evenly disposed on the conveying conveyor belt.

[0011] In the above technical solution, an elliptical vibrating wheel is rotatably arranged on the inner wall of the separation frame, and the separation conveyor belt is sleeved on the outside of the elliptical vibrating wheel.

[0012] Between every two adjacent scrapers, there is a conveying rod fixed to the connecting conveyor belt, and the conveying rod is parallel to the scraper.

[0013] Both the separating frame and the conveying frame have rotatable pendulum wheels on their unloading sides, and both the separating conveyor belt and the connecting conveyor belt have transmission grooves that mesh with the pendulum wheels.

[0014] Both the separating frame and the conveying frame are equipped with driving components that drive the plum blossom wheel to rotate.

[0015] Both the separating frame and the conveying frame have support rollers rotatably mounted on the side away from the material drop point, and the separating conveyor belt and the handover conveyor belt are respectively sleeved on the outside of the support rollers.

[0016] Both the separating frame and the conveying frame have rotatable support rollers on their inner walls, and the separating conveyor belt and the handover conveyor belt are respectively sleeved on the outside of the support rollers.

[0017] The separating frame and the conveying frame are connected on the side adjacent to each other via a docking frame.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the digging, separating and handing over conveying device of the onion harvester.

[0019] 1. The alternating arrangement of curved and straight bars forms a conveying path that can accommodate crop bulbs of different shapes. This allows the onion bulbs to fall into the grooves formed on the curved bars, preventing them from slipping off the separation conveyor belt during the separation process. Debris is sieved off through the gaps between the curved and straight bars, thus ensuring the stability of the conveying process after the onion bulbs are dug and separated.

[0020] Second, the onion bulbs are carried from the arc grid transfer bucket to the bottom of the inner wall of the conveyor frame by the conveyor scraper. The conveyor scraper attached to the bottom of the inner wall of the conveyor frame prevents the onion bulbs from falling, thus ensuring the stability of the conveying process after the onion bulbs are dug and separated, and thus ensuring the efficiency of the post-dugout processing of onion bulbs.

[0021] Third, the elliptical vibrating wheel causes the separating conveyor belt to vibrate during the onion bulb transport process, shaking off the debris on the surface of the onion bulb and moving the onion bulb on the separating conveyor belt. Especially when transporting sticky or blocky crop bulbs, the vibration can prevent material accumulation and ensure the smoothness of the crop transport process.

[0022] Fourth, the conveying rods parallel to the scrapers increase the bearing area between the scrapers, thereby ensuring the stability of the conveying process after the onion bulbs are separated and preventing the onion bulbs from falling between the two scrapers during conveying.

[0023] Fifth, the design of the plum blossom wheel and transmission groove increases the stability of the transmission process between the separating conveyor belt and the connecting conveyor belt, thereby ensuring the stability of the onion bulb transportation process.

[0024] 6. The set support rollers rotate on the inner walls of the separating frame and the conveying frame according to the laying trajectory of the separating conveyor belt and the handover conveyor belt. The support rollers ensure the tension of the separating conveyor belt and the handover conveyor belt during the cyclic movement, thereby ensuring the stability of the onion bulb conveying process. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the excavation, separation, and transfer conveying device for an onion harvester according to the present invention;

[0026] Figure 2 This is a schematic diagram of the separation frame part of this utility model;

[0027] Figure 3 This is a schematic diagram of the conveyor frame portion of this utility model;

[0028] Figure 4 This is a schematic diagram showing the structural distribution of straight and curved bars on the separator frame of this utility model;

[0029] in, Figures 1 to 4The correspondence between the reference numerals and component names in the attached drawings is as follows: 1-separation frame, 2-conveyor frame, 3-connection frame, 4-separation conveyor belt, 5-straight bar, 6-bent bar, 7-elliptical vibrating wheel, 8-transfer conveyor belt, 9-scraper, 10-conveyor bar, 11-flower wheel, 12-arc grid transfer bucket, 13-support roller, 14-support roller. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] The following are specific implementation cases and appendices. Figure 1-4 The present invention will be further described below, but the present invention is not limited to these embodiments.

[0032] A digging, separating, and conveying device for an onion harvester includes a separating frame 1 and a conveying frame 2 installed at the harvester's discharge point. The harvester is used to dig up crop bulbs, causing the onion bulbs dug from the ground to fall onto the separating frame 1. The separating frame 1 is obliquely fixed to the ground by two side legs, and the conveying frame 2 is obliquely fixed to the right side of the separating frame 1 by two side legs, with the separating frame 1 and the conveying frame 2 on the same ground. The separating frame 1 is fixed to the left side of the conveying frame 2 by a connecting frame 3.

[0033] An arc grid transfer hopper 12 is provided on the side of the conveyor frame 2 near the separating frame 1, and the arc grid transfer hopper 12 is located below the material drop point of the separating frame 1. The arc grid transfer hopper 12 is fixedly installed on the leftmost position of the conveyor frame 2, that is, the arc grid transfer hopper 12 is located on the lower side of the conveyor frame 2 and below the higher side of the separating frame 1, so that the onion bulbs on the separating frame 1 fall onto the arc grid transfer hopper 12 along with the separating conveyor belt 4.

[0034] A separating conveyor belt 4 is installed on the separating frame 1. Straight bars 5 are evenly arranged on the separating conveyor belt 4, and a curved bar 6 is fixed to the separating conveyor belt 4 between every two adjacent straight bars 5. The separating conveyor belt 4 circulates and transports onion bulbs. Straight bars 5 are evenly spaced and fixedly installed between the separating conveyor belt 4 on both sides of the inner wall of the separating frame 1. A curved bar 6 is fixedly installed between every two adjacent straight bars 5, forming a grooved conveying surface on the separating conveyor belt 4 through the straight bars 5 and the curved bars 6. The curved bars 6 and straight bars 5 are arranged alternately to form a conveying path that can adapt to different shapes, ensuring that the onion bulbs fall into the grooves formed on the curved bars 6, preventing them from slipping off the separating conveyor belt 4 during the separation process. This ensures the stability of the conveying process after the onion bulbs are separated.

[0035] A transfer conveyor belt 8 is provided on the conveyor frame 2, and conveyor scrapers 9 are evenly arranged on the transfer conveyor belt 8 and adhere to the bottom of the inner wall of the conveyor frame 2. The transfer conveyor belt 8 is arranged along the inclined direction of the conveyor frame 2, and the conveyor scrapers 9 are evenly laid on the transfer conveyor belt 8.

[0036] As the conveyor scraper 9 moves with the transfer conveyor belt 8, it slides against the bottom of the inner wall of the conveyor frame 2, allowing the onion bulbs falling onto the arc grid transfer hopper 12 to be conveyed by the cyclically moving conveyor scraper 9. This allows the onion bulbs to be carried from the arc grid transfer hopper 12 to the bottom of the inner wall of the conveyor frame 2 by the conveyor scraper 9. The conveyor scraper 12, adhering to the bottom of the inner wall of the conveyor frame 2, prevents the onion bulbs from falling off, thus ensuring the stability of the conveying process after the crop bulbs are separated, and consequently ensuring the efficiency of the post-harvest processing of crops.

[0037] The inner wall of the separation frame 1 is provided with an elliptical vibrating wheel 7, and the separation conveyor belt 4 is sleeved on the outside of the elliptical vibrating wheel 7.

[0038] The elliptical vibrating wheel 7 causes the separating conveyor belt 4 to vibrate during the transport of the excavated crop bulbs, shaking off the debris attached to the crops from the separating conveyor belt 4 and moving the crops on the separating conveyor belt 4. Especially when transporting sticky or lumpy crops, the vibration can prevent the crops from piling up and ensure the smoothness of the crop transport process.

[0039] It is worth noting that a conveying rod 10 is fixed to the connecting conveyor belt 8 between every two adjacent scrapers 9, and the conveying rod 10 is parallel to the scraper 9.

[0040] The conveying rod 10, which is parallel to the scraper 9, increases the bearing area between the scrapers 9, thereby ensuring the stability of the conveying process after the onion bulbs are separated and preventing the onion bulbs from falling between the two scrapers 9 during conveying.

[0041] In addition, both the material dropping side of the separating frame 1 and the conveying frame 2 are equipped with a rotatable pendulum wheel 11, and both the separating conveyor belt 4 and the connecting conveyor belt 8 are equipped with a transmission groove that meshes with the pendulum wheel 11.

[0042] The addition of the plum blossom wheel 11 and the transmission groove increases the stability of the transmission process between the separating conveyor belt 4 and the connecting conveyor belt 8, thereby ensuring the stability of the crop bulb transportation process.

[0043] In addition, both the separating frame 1 and the conveying frame 2 are equipped with driving components that drive the flower wheel 11 to rotate. The driving component can be a motor, and the output shaft of the motor is fixedly connected to one end of the transmission shaft where the flower wheel 11 is located. The two drive motors are respectively fixed on the outer walls of the separating frame 1 and the conveying frame 2, and the motors are electrically connected to an external power source through wires.

[0044] Furthermore, support rollers 13 are rotatably installed on the side of both the separating frame 1 and the conveyor frame 2 away from the material drop point, and the separating conveyor belt 4 and the connecting conveyor belt 8 are respectively sleeved on the outside of the support rollers 13. The support rollers 13 ensure the stability of the cyclic transmission process of the separating conveyor belt 4 and the connecting conveyor belt 8.

[0045] Both the inner walls of the separating frame 1 and the conveyor frame 2 are rotatably equipped with support rollers 14, and the separating conveyor belt 4 and the connecting conveyor belt 8 are respectively sleeved on the outside of the support rollers 14.

[0046] The set support rollers 14 rotate on the inner walls of the separating frame 1 and the conveying frame 2 according to the laying trajectory of the separating conveyor belt 4 and the connecting conveyor belt 8, respectively. The support rollers 14 ensure the tension of the separating conveyor belt 4 and the connecting conveyor belt 8 during the cyclic movement process, thereby ensuring the stability of the process of conveying crop bulbs.

[0047] The separating frame 1 and the conveying frame 2 are connected on the adjacent side by a connecting frame 3. The connecting frame 3 fixes the separating frame 1 and the conveying frame 2 on the adjacent side, thereby ensuring the overall stability of the separating frame 1 and the conveying frame 2. Furthermore, the plates on both sides of the connecting frame 3 prevent the crop bulbs from falling during the separation and conveying process, thus ensuring the stability of the conveying process.

[0048] This embodiment describes a digging, separating, and conveying device for an onion harvester. The working principle is as follows: the harvester digs the onion bulbs out of the soil, and the dug-out onion bulbs fall onto the separating frame 1. The onion bulbs are simultaneously conveyed by an inclined separating conveyor belt 4 with alternating curved bars 6 and straight bars 5. The inclined separating frame 1 causes debris on the onion bulbs to be shaken off by the vibration of the elliptical vibrating wheel 7. At the same time, the onion bulbs are conveyed to the discharge point by the alternating curved bars 6 and straight bars 5, so that the onion bulbs fall onto the arc grid transfer hopper 12.

[0049] Then, the onion bulbs are transported by the conveyor belt 8, which moves in a cycle, and the onion bulbs are transported to the receiving box by the scraper 9 on the conveyor belt 8 and the conveyor bar 10.

[0050] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0051] Furthermore, the terms "first," "second," "third," and "fourth" are used 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 as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0052] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", 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 connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A digging, separating, and conveying device for an onion harvester, characterized in that: The system includes a separating frame (1) and a conveyor frame (2) installed at the material discharge point of the harvester. An arc grid transfer hopper (12) is provided on the side of the conveyor frame (2) near the separating frame (1), and the arc grid transfer hopper (12) is located below the material discharge point of the separating frame (1). A separating conveyor belt (4) is provided on the separating frame (1). Straight bars (5) are evenly arranged on the separating conveyor belt (4), and a bent bar (6) fixed to the separating conveyor belt (4) is provided between every two adjacent straight bars (5). A transfer conveyor belt (8) is provided on the conveyor frame (2), and a conveying scraper (9) is evenly arranged on the transfer conveyor belt (8) and adheres to the bottom of the inner wall of the conveyor frame (2).

2. The digging, separating, and conveying device for an onion harvester according to claim 1, characterized in that: An elliptical vibrating wheel (7) is rotatably mounted on the inner wall of the separation frame (1), and the separation conveyor belt (4) is sleeved on the outside of the elliptical vibrating wheel (7).

3. The digging, separating, and conveying device for an onion harvester according to claim 1, characterized in that: Between each pair of adjacent scrapers (9), there is a conveying rod (10) fixed to the connecting conveyor belt (8), and the conveying rod (10) is parallel to the scraper (9).

4. The digging, separating, and conveying device for an onion harvester according to claim 1, characterized in that: Both the separating frame (1) and the conveying frame (2) are rotatably equipped with a flower wheel (11) on the material dropping side, and both the separating conveyor belt (4) and the connecting conveyor belt (8) are equipped with a transmission groove that meshes with the flower wheel (11).

5. The digging, separating, and conveying device for an onion harvester according to claim 4, characterized in that: Both the separating frame (1) and the conveying frame (2) are equipped with driving components that drive the plum blossom wheel (11) to rotate.

6. The digging, separating, and conveying device for an onion harvester according to claim 1, characterized in that: Both the separating frame (1) and the conveying frame (2) are rotatably equipped with support rollers (13) on the side away from the material drop point. The separating conveyor belt (4) and the handover conveyor belt (8) are respectively sleeved on the outside of the support rollers (13).

7. The digging, separating, and conveying device for an onion harvester according to claim 1, characterized in that: The inner walls of both the separating frame (1) and the conveying frame (2) are rotatably equipped with support rollers (14), and the separating conveyor belt (4) and the handover conveyor belt (8) are respectively sleeved on the outside of the support rollers (14).

8. The digging, separating, and conveying device for an onion harvester according to claim 1, characterized in that: The separating frame (1) and the conveying frame (2) are connected on the side adjacent to each other via a docking frame (3).

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