Clamping and conveying structure for garlic harvesting

Abstract

The utility model relates to a clamping and conveying structure for harvesting garlic, which comprises a rack, two clamping and conveying units are transversely arranged on the rack at intervals, each clamping and conveying unit comprises an upper belt wheel and a lower belt wheel which are longitudinally arranged at intervals, and a joined V-belt is arranged between the upper belt wheel and the lower belt wheel. A plurality of inner tensioning wheels are arranged on the portion, between the upper belt wheel and the lower belt wheel, of the rack at intervals, the inner tensioning wheels in the two clamping conveying units are arranged in a staggered mode, an outer tensioning wheel is arranged at the end, close to the lower belt wheel, of the rack, and the two linked V-belts are matched to clamp and convey garlic. The clamping and conveying device has the advantages of being reasonable in structural design, good in clamping and conveying stability, high in clamping and conveying efficiency and the like, and the conveying belt does not fall off easily.

Description

Technical fields:

[0001] This utility model relates to the field of garlic harvester technology, specifically to a clamping and conveying structure for garlic harvesting. Background technology:

[0002] Garlic harvesters are mechanized machines that complete all agricultural processes in one operation, including digging, removing soil, conveying, sorting, stalk cutting, collecting, and transporting garlic. The conveying process primarily uses a clamping conveyor method, during which sorting and stalk cutting are performed. Existing clamping conveyor structures generally employ belt drives, where two conveyor belts clamp the garlic and rotate to transport it upwards at an angle. The conveyor belts are typically flat or V-belts. For a detailed description of the structure, please refer to our previously filed patent application for a single-row garlic harvester stalk-cutting device (authorization announcement number: CN115529917B).

[0003] While existing technologies have achieved the function of clamping and conveying garlic, deep-seated technical problems have been found in practice. Specifically, the conveyor belt frequently detaches during operation (also known as belt slippage or separation). Once the conveyor belt detaches, the machine must be stopped for repair, which undoubtedly seriously affects garlic harvesting efficiency. In-depth research and analysis by technical personnel revealed two main reasons for conveyor belt detachment: First, because the conveyor belt needs to be tilted upwards to clamp the garlic, it is actually set at an angle during operation, making it more prone to detachment compared to a horizontally positioned conveyor belt. Second, when the harvester is working in the field, straw, soil, weeds, and other debris easily become entangled in the pulleys, further exacerbating the detachment problem. Therefore, it is necessary to optimize and improve the existing clamping and conveying structure to effectively solve the problem of conveyor belt detachment.

[0004] It should be noted that the above content falls within the inventor's technical knowledge and does not necessarily constitute prior art. Summary of the Invention:

[0005] The purpose of this utility model is to solve the problems existing in the prior art and provide a clamping and conveying structure for garlic harvesting, which has the advantages of reasonable structural design, easy conveyor belt to fall off, good clamping and conveying stability, and high clamping and conveying efficiency.

[0006] This utility model achieves the above objectives by adopting the following technical solutions:

[0007] A garlic harvesting clamping and conveying structure includes a frame. Two clamping and conveying units are arranged laterally on the frame. Each clamping and conveying unit includes an upper pulley and a lower pulley arranged longitudinally. A V-belt is provided between the upper pulley and the lower pulley. Multiple inner tensioning pulleys are arranged at intervals on the frame between the upper pulley and the lower pulley. The inner tensioning pulleys in the two clamping and conveying units are staggered. An outer tensioning pulley is provided on the frame near the lower pulley. The two V-belts cooperate to clamp and convey garlic.

[0008] The combined V-belt has two V-belts, and the corresponding upper pulley, lower pulley, and inner tensioner have two belt grooves.

[0009] The frame is equipped with scrapers corresponding to the upper pulley, lower pulley, inner tensioning pulley and outer tensioning pulley respectively. Each scraper includes a support plate and a scraper blade is provided on the support plate.

[0010] The frame includes two longitudinal beams arranged laterally at intervals, with a connecting frame between the two longitudinal beams. The clamping and conveying unit is mounted on the longitudinal beams, and the upper end of the longitudinal beams is provided with an upper pulley, and the lower end is provided with a lower pulley.

[0011] The frame is equipped with a drive mechanism, which includes a gearbox mounted on the frame. A hydraulic motor is mounted on the upper end of the gearbox, and a drive gear is connected to the hydraulic motor. An upper pulley is mounted on an upper pulley shaft, and a driven gear is mounted on the upper end of the upper pulley shaft. The drive gear meshes with one of the driven gears for transmission, and the drive gear meshes with a reversing gear. The reversing gear meshes with another driven gear for transmission.

[0012] The present invention, by adopting the above-described structure, can bring the following beneficial effects:

[0013] (1) By using a banded V-belt to replace the existing flat belt and V-belt, and cooperating with the banded pulley, the banded V-belt can be effectively prevented from falling off; (2) In view of the problem that mud, weeds, straw and other debris can easily enter the lower pulley and the conveyor belt can easily fall off from the lower pulley, an outer tensioning pulley is designed near the lower pulley. The outer tensioning pulley can effectively increase the wrap angle of the banded V-belt at the lower pulley, thereby further preventing the banded V-belt from falling off; (3) By designing a mud scraper, mud, straw and weeds and other debris on the pulley and tensioning pulley can be cleaned in time, thereby further preventing the banded V-belt from falling off. Attached image description:

[0014] Figure 1 This is a top view of the garlic harvesting clamping and conveying structure of this utility model;

[0015] Figure 2 This is a side view of the garlic harvesting clamping and conveying structure of this utility model;

[0016] Figure 3 This is a perspective view of the garlic harvesting clamping and conveying structure of this utility model;

[0017] Figure 4 This is a perspective view of the garlic harvesting clamping and conveying structure of this utility model from another angle;

[0018] Figure 5 This is a schematic diagram of the upper pulley structure of this utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the combined V-belt of this utility model;

[0020] Figure 7 This is a schematic diagram of the installation structure of the internal tensioning wheel and the sludge scraper of this utility model;

[0021] Figure 8 This is a schematic diagram of the installation structure of the external tensioning wheel of this utility model;

[0022] In the diagram, 1. Frame, 101. Longitudinal beam, 102. Connecting frame, 2. Clamping and conveying unit, 3. Upper pulley, 4. Lower pulley, 5. V-belt, 6. Inner tension pulley, 7. Outer tension pulley, 8. V-belt, 9. Groove, 10. Scraper, 1001. Support plate, 1002. Scraper blade, 11. Drive mechanism, 1101. Gearbox, 1102. Hydraulic motor, 1102. Drive gear, 1103. Drive gear, 1104. Upper pulley shaft, 1105. Driven gear, 1106. Reversing gear, 12. Mounting bolt. Detailed implementation method:

[0023] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0025] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0026] Furthermore, terms such as “horizontal,” “vertical,” “upper,” and “lower” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the location of the indicated technical feature.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] like Figure 1-8 As shown, a clamping and conveying structure for garlic harvesting includes a frame 1. Two clamping and conveying units 2 are laterally spaced on the frame 1. Each clamping and conveying unit 2 includes an upper pulley 3 and a lower pulley 4 spaced longitudinally. A connecting V-belt 5 is provided between the upper pulley 3 and the lower pulley 4. Multiple inner tensioning rollers 6 are spaced apart on the frame 1 between the upper pulley 3 and the lower pulley 4. The inner tensioning rollers 6 in the two clamping and conveying units 2 are staggered. These inner tensioning rollers 6, in addition to their tensioning function, also serve to bring the two connecting V-belts closer together, thereby improving... To provide clamping force, an outer tensioning pulley 7 is provided on the frame 1 near the lower pulley 4. The reason for setting the outer tensioning pulley 7 near the lower pulley 4 is that the conveyor belt usually falls off at the lower pulley 4. By designing the outer tensioning pulley 7, the wrap angle of the combined V-belt 5 at the lower pulley 4 can be increased, thereby effectively preventing the combined V-belt 5 from falling off. The two combined V-belts 5 cooperate to clamp and convey garlic. The cooperation here mainly refers to the two combined V-belts 5 using opposite rotation directions to clamp and tilt the garlic upwards. The garlic here refers to garlic dug from the ground. By replacing the existing flat belt and V-belt with a combined V-belt 5, and cooperating with the combined pulleys (i.e., upper pulley 3 and lower pulley 4), the combined V-belt 5 can be effectively prevented from slipping off. Since the lower pulley 4 is close to the ground and is the first to contact the garlic, it is easier for dirt, weeds, straw, and other debris to enter at the lower pulley, causing the conveyor belt to easily slip off. Therefore, by designing an external tensioning pulley 7 near the lower pulley 4, the wrap angle of the combined V-belt 5 at the lower pulley 4 can be effectively increased, thus effectively preventing the combined V-belt 5 from slipping off. Through the above structural improvements, the problem of conveyor belt slippage can be effectively solved. In addition, in practical applications, each pulley can be installed and fixed using mounting bolts 12, that is, the mounting bolts are directly fixed to the frame 1, and then bearings are installed on the mounting bolts 12 to achieve the rotational movement of the pulleys. Its structure and principle are similar to those of bolt-type rollers.

[0029] The combined V-belt 5 is provided with two V-belts 8, and the corresponding upper pulley 3, lower pulley 4, and inner tensioning pulley 6 are provided with two belt grooves 9. The use of two V-belts 8 is mainly determined by comprehensive considerations such as cost, clamping stability, and uniform force distribution during transmission.

[0030] Scrapers 10 are respectively installed on the frame 1 at the upper pulley 3, lower pulley 4, inner tension pulley 6, and outer tension pulley 7. Each scraper 10 includes a support plate 1001, on which a scraper blade 1002 is provided. The specific shape of the scraper blade 1002 matches the groove 9 of the pulley. Considering the actual working environment of the garlic harvester, soil, straw, leaves, weeds, and other debris can easily enter the lower pulley 4, inner tension pulley 6, upper pulley 3, and outer tension pulley. Once these debris enters the pulleys, it will seriously affect the normal transmission between the V-belt 5 and the pulley, thus causing the V-belt 5 to easily fall off. By setting up the scraper blade 1002, the groove 9 on the pulley can be cleaned in time, thereby effectively preventing the V-belt 5 from falling off.

[0031] The frame 1 includes two longitudinal beams 101 arranged laterally, and a connecting frame 102 is provided between the two longitudinal beams 101. The clamping and conveying unit 2 is arranged on the longitudinal beams 101. The upper end of the longitudinal beam 101 is provided with an upper pulley 3 and the lower end is provided with a lower pulley 4. The structure is simple and reasonable, and it is convenient to install the two clamping and conveying units 2 accurately and quickly.

[0032] The frame 1 is equipped with a drive mechanism 11, which includes a gearbox 1101. A hydraulic motor 1102 is mounted on the upper end of the gearbox 1101. A drive gear 1103 is mounted on the output shaft of the hydraulic motor 1102. An upper pulley 3 is mounted on an upper pulley shaft 1104. A driven gear 1105 is mounted on the upper end of the upper pulley shaft 1104. The drive gear 1103 meshes with one of the driven gears 1105, and also meshes with a reversing gear 1106. The reversing gear 1106 meshes with the other driven gear 1105. The hydraulic motor 1102 simultaneously drives two connected V-belts 5 to rotate in opposite directions, thereby achieving the upward tilting and conveying of garlic.

[0033] The above specific embodiments should not be construed as limiting the scope of protection of this utility model. For those skilled in the art, any alternative improvements or modifications made to the embodiments of this utility model shall fall within the scope of protection of this utility model.

[0034] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. A clamping and conveying structure for harvesting garlic, characterized in that, The device includes a frame on which two clamping and conveying units are arranged laterally at intervals. Each clamping and conveying unit includes an upper pulley and a lower pulley arranged longitudinally at intervals. A combined V-belt is provided between the upper pulley and the lower pulley. Multiple inner tensioning rollers are arranged at intervals on the frame between the upper pulley and the lower pulley. The inner tensioning rollers in the two clamping and conveying units are staggered. An outer tensioning roller is provided on the frame near the lower pulley. The two combined V-belts cooperate to clamp and convey garlic.

2. The garlic harvesting clamping and conveying structure according to claim 1, characterized in that, The combined V-belt has two V-belts, and the corresponding upper pulley, lower pulley, and inner tensioner have two belt grooves.

3. The garlic harvesting clamping and conveying structure according to claim 1 or 2, characterized in that, The frame is equipped with scrapers corresponding to the upper pulley, lower pulley, inner tensioning pulley and outer tensioning pulley respectively. Each scraper includes a support plate and a scraper blade is provided on the support plate.

4. The garlic harvesting clamping and conveying structure according to claim 3, characterized in that, The frame includes two longitudinal beams arranged laterally at intervals, with a connecting frame between the two longitudinal beams. The clamping and conveying unit is mounted on the longitudinal beams, with an upper pulley at the upper end and a lower pulley at the lower end of each longitudinal beam.

5. The garlic harvesting clamping and conveying structure according to claim 1 or 4, characterized in that, The frame is equipped with a drive mechanism, which includes a gearbox mounted on the frame. A hydraulic motor is mounted on the upper end of the gearbox, and a drive gear is connected to the hydraulic motor. An upper pulley is mounted on an upper pulley shaft, and a driven gear is mounted on the upper end of the upper pulley shaft. The drive gear meshes with one of the driven gears for transmission, and the drive gear meshes with a reversing gear. The reversing gear meshes with another driven gear for transmission.

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