Earthworm harvesting machine

Abstract

The utility model provides an earthworm harvesting machine which comprises a receiving end and a discharging end of a conveying belt, a plurality of conveying rakes are arranged on the conveying belt, a supporting rake comprises a fixing strip, a plurality of rake teeth are fixedly arranged on the fixing strip, the rake teeth are in an arc shape, openings of the arcs face the surface of the conveying belt, and pressing spaces are reserved between the rake teeth and the conveying belt. When the conveying harrow moves to the material receiving end, the harrow tooth tips of the conveying harrow can extend out of the range where the conveying belt is located; the stirring roller is arranged on the outer side of the discharging end of the conveying belt, at least one stirring piece is arranged on the stirring roller, and when the stirring roller rotates, the stirring pieces can make contact with the tooth tips of the rake teeth moving to the discharging end and enable the rake teeth to vibrate in the direction away from the conveying belt. The arc-shaped rake teeth are matched with the conveying belt, earthworms or soil blocks dug out of a foundation bed can be squeezed in the pressing space, and pressure is applied to the earthworms, so that the earthworms are prevented from crawling on the conveying belt and falling off from the two sides of the conveying belt.

Description

Technical Field

[0001] This utility model belongs to the field of earthworm farming equipment, and in particular relates to an earthworm harvesting machine. Background Technology

[0002] Earthworms have high medicinal and economic value. Most of the nutrients they consume during their growth come from the excrement of other animals. Moreover, earthworm excrement is rich in nutrients such as nitrogen, phosphorus, and potassium, making it valuable for environmental protection and agricultural production.

[0003] At the end of the earthworm farming process, the earthworms on the breeding bed need to be collected for processing into corresponding products. Currently, earthworms can be harvested using methods such as electrocution and water flushing. These methods utilize changes in the external environment to induce the earthworms to actively escape and enter a pre-prepared film, making it easier to collect them manually. However, this approach not only wastes resources, but also easily affects the earthworms' activity after being stimulated by external factors, especially electrocution, which can even cause infertility. Moreover, the harvesting process involves a lot of manual labor, is time-consuming, and labor-intensive.

[0004] Currently, there is also an earthworm harvesting machine that uses a conveyor belt to transport earthworms to the top, and then separates the earthworms from the soil. However, during the transportation process, earthworms tend to crawl on the conveyor belt, causing some earthworms to fall into the rollers on both sides of the conveyor belt and be strangled, resulting in waste and affecting the harvest. Moreover, the surrounding environment during the harvesting process is poor, which also has an adverse effect on the operation of the machine itself. Utility Model Content

[0005] In view of this, the present invention aims to provide an earthworm harvesting machine to prevent earthworms from falling off during the harvesting process.

[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0007] An earthworm harvesting machine, including

[0008] The conveyor belt includes a receiving end and a discharging end. The length direction of the conveyor belt forms an angle with the horizontal plane, and the discharging end is located above the receiving end. The conveyor belt is equipped with multiple conveying rakes, and the supporting rakes include a fixing strip. Multiple rake teeth are fixed on the fixing strip. The fixing strip is fixed to the belt body of the conveyor belt. The rake teeth are arc-shaped, and the arc-shaped opening faces the surface of the conveyor belt, so that there is a pressing space between the rake teeth and the conveyor belt. When the conveying rake moves to the receiving end, the tip of the rake teeth of the conveying rake can extend outward beyond the area of ​​the conveyor belt.

[0009] A pawl roller is positioned outside the material feeding end of the conveyor belt, and at least one pawl is provided on the pawl roller. When the pawl roller rotates, the pawl can contact the tip of the rake tooth that moves to the material feeding end, causing the rake tooth to vibrate away from the conveyor belt.

[0010] The separating drum has openings at both ends, and the axial direction of the separating drum forms an angle with the horizontal plane. The top opening is located directly below the receiving end, and the side wall of the separating drum is surrounded by a screen.

[0011] Furthermore, a gap is left between each pair of adjacent rake teeth.

[0012] Furthermore, the actuating roller is provided with multiple clusters of bristles, the bristles corresponding to the gaps between the rake teeth, and the bristles can extend into the gaps when the conveying rake moves to the discharge end.

[0013] Furthermore, when the conveyor rake moves to the discharge end, it can extend beyond the projection range of the conveyor belt. The paddle contacts the end of the rake teeth of the conveyor rake extending beyond the projection range of the conveyor belt, causing the conveyor rake to vibrate.

[0014] Furthermore, this harvester also includes a fixed frame, with support frames on both sides of the conveyor belt, the two ends of the drive roller of the conveyor belt being rotatably connected to the support frames, the top of the support frame being hinged to the fixed frame, and the middle of the fixed frame being connected to the support frame via a hydraulic cylinder, with the two ends of the hydraulic cylinder being hinged to the support frame and the fixed frame respectively.

[0015] Furthermore, the conveyor belt is provided with receiving baffles on both sides of the receiving end, and the part of the conveyor rake that moves to the receiving end and protrudes from the conveyor belt is placed between the two receiving baffles.

[0016] Furthermore, a support plate is provided in the middle of the conveyor belt, and a soft pad is provided on the upper surface of the support plate. During the movement of the conveyor rake, the pressing space is placed on the soft pad.

[0017] Furthermore, the bottom opening of the separating roller extends outward into a flared shape.

[0018] Furthermore, a receiving box is provided below the horn opening.

[0019] Compared with existing technologies, the earthworm harvesting machine described in this utility model has the following advantages:

[0020] This utility model uses arc-shaped rake teeth and a conveyor belt to compress earthworms or clods of soil dug out from the bed into the pressing space. By applying pressure to the earthworms, the earthworms are prevented from crawling on the conveyor belt and from falling off the sides of the conveyor belt.

[0021] At the feeding end, a vibrating plate is used to shake the conveyor rake to shake the earthworms or manure and soil clods on the conveyor belt into the separating drum, so as to avoid affecting the subsequent earthworm collection.

[0022] Use a brush to clean the gaps between the rake teeth to prevent earthworms from getting tangled in the gaps between the rake teeth, so that the earthworms can fall into the separating drum more quickly.

[0023] The separating drum, formed by a screen, separates the soil or earthworm castings that are shoveled out along with the earthworms during the working process. Attached Figure Description

[0024] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0025] Figure 1 This is a schematic diagram of the overall structure of the main body of the harvester (the various supports are hidden to clearly show the positional relationship of each part);

[0026] Figure 2 This is a side view of the main body of the harvester;

[0027] Figure 3 This is a schematic diagram of the conveyor rake structure;

[0028] Figure 4 This is a schematic diagram of the actuating roller structure.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1-Conveyor belt; 11-Conveying rake; 111-Rake teeth; 112-Gap; 113-Fixing strip; 12-Pressing space; 13-Support plate; 14-Receiving baffle; 15-Receiving end; 16-Discharging end; 2-Separating roller; 21-Flare mouth; 22-Support wheel; 3-Actuating roller; 31-Brush; 32-Actuating blade; 4-Support frame; 5-Receiving box. Detailed Implementation

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0032] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] The earthworm harvesting machine of this utility model includes a fixed frame, which is hinged to a support frame 4. A pair of hydraulic cylinders are also provided between the fixed frame and the support frame 4. The cylinder bodies of the hydraulic cylinders are hinged to the fixed frame via hinge lugs, and the piston rods are hinged to the support frame 4 via hinge lugs. The angle of the support frame 4 is controlled by controlling the extension and retraction length of the hydraulic cylinder piston rods. A conveyor belt 1 is fixedly mounted on the support frame 4. Specifically, the drive rollers of the conveyor belt 1 are rotatably connected to both ends of the support frame 4, and the belt body of the conveyor belt 1 is fitted onto the drive rollers. A separating roller 2 is rotatably connected to the fixed frame, and the separating roller 2 has openings at both ends. The length directions of the conveyor belt 1 and the separating roller 2 are respectively at an angle to the horizontal plane, and the top end of the conveyor belt 1 is positioned directly above the top end of the separating roller 2.

[0036] Specifically, the conveyor belt 1 includes a receiving end 15 and a discharging end 16, with the discharging end 16 positioned above the receiving end 15. The conveyor belt 1 has multiple conveying rakes 11 on its body, and each rake includes a fixing strip 113. Multiple rake teeth 111 are fixed to the fixing strip 113. The fixing strip 113 is fixed to the conveyor belt 1 by rivets. Optionally, those skilled in the art can also use adhesive or similar materials to fix the fixing strip 113 to the conveyor belt 1 as needed. The rake teeth 111 are arc-shaped, with the arc-shaped opening facing the surface of the conveyor belt 1. An acute angle is formed between the end of the rake tooth 111 near the fixing strip 113 and the surface of the conveyor belt, creating a pressing space 12 between the rake tooth 111 and the conveyor belt 1. An opening is left between the tip of the rake tooth 111 and the conveyor belt 1. Furthermore, when the conveyor rake 11 moves to the receiving end 15, the tips of the rake teeth 111 of the conveyor rake 11 can extend outward beyond the range of the conveyor belt 1. When the conveyor rake 11 moves to the discharging end 16, it can extend outward beyond the projection range of the conveyor belt 1. In other words, when the conveyor rake 11 moves to the end of the conveyor belt 1, the pressing space 12 becomes larger from the end of the rake teeth 111. Since the belt surface of the conveyor belt 1 moves along the arc surface where the drive roller interface is located, the opening of the pressing space 12 becomes larger, and the material in the pressing space 12 can fall from the opening of the pressing space 12 by its own gravity. A gap 112 is left between each pair of adjacent rake teeth 111 to allow the rake teeth 111 to insert into the manure at the bottom of the substrate. Specifically, during operation, the receiving end 15 is close to the ground, and through the movement of the conveyor belt 1, the rake teeth 111 extend outward from the range of the conveyor belt 1, allowing the rake teeth 111 to insert into the bottom of the substrate. As the conveyor rake 11 continues to move, the rake teeth 111 can extend into the underside of the earthworm breeding substrate. Then, as the conveyor belt 1 continues to move, it drives the conveyor rake 11 of the receiving end 15 to flip upward, thereby moving the substrate and earthworms at that location onto the conveyor belt 1. The earthworms are then conveyed to the discharging end 16 by the conveyor belt 1, and at this time, the conveyor rake 11 presses against the earthworms and substrate on the conveyor belt 1. When the earthworms move to the discharging end 16, the belt body of the conveyor belt 1 moves away from the conveyor rake 11 under the guidance of the drive roller, causing the opening of the pressing space 12 to open, and the earthworms and substrate fall into the opening at the top of the separating roller 2 under the action of gravity.

[0037] The sidewalls of the separating roller 2 are sieve-like; more specifically, the separating roller 2 is formed by a sieve-like enclosure. After earthworms and substrate fall into the separating roller 2, as the roller 2 rotates, the earthworms and substrate inside vibrate. During this process, the substrate falls through the mesh of the sieve-like sidewall after colliding with each other. Earthworms, due to their elongated shape, cannot fall and instead fall along the length of the separating roller 2 towards the opening at the bottom. To facilitate the falling of earthworms and to collect them, a funnel-shaped opening 21 extends outward from the bottom opening of the separating roller 2, and a receiving box 5 is located directly below the funnel-shaped opening 21, allowing earthworms to fall into the receiving box 5 after passing through the separating roller 2.

[0038] A swivel roller 3 is also provided at the top of the conveyor belt 1, positioned outside the material feeding end 16 of the conveyor belt 1. The swivel roller 3 is provided with at least one swivel 32, which corresponds to the rake teeth 111. When the swivel roller 3 rotates, the swivel 32 can contact the tips of the rake teeth 111 that have moved to the material feeding end 16, causing the rake teeth 111 to vibrate away from the conveyor belt 1. More specifically, the swivel 32 contacts the ends of the rake teeth 111 of the conveyor rake 11 that extend beyond the projection range of the conveyor belt 1, and the conveyor rake 11 vibrates by utilizing the slight elastic deformation of the conveyor belt 1 itself. In this embodiment, multiple swivel 32 are provided along the circumference of the swivel roller 3 to increase the vibration frequency of the conveyor rake 11 after it moves to the material feeding end 16. The agitator roller 3 is also equipped with multiple clumps of bristles, which correspond to the gaps 112 between the rake teeth 111. When the conveyor rake 11 moves to the discharge end 16, the bristles can extend into the gaps 112, cleaning the rake teeth 111 on both sides and the base of the rake teeth 111. This allows earthworms entangled or attached to the rake teeth 111 to separate from them, improving the efficiency of earthworms falling into the separation roller 2. This also prevents earthworms attached to the rake teeth 111 from affecting subsequent harvesting operations. The receiving end 15 of the conveyor belt 1 is also equipped with receiving baffles 14 on both sides. The portion of the conveyor rake 11 that extends out of the conveyor belt 1 when it moves to the receiving end 15 is placed between the two receiving baffles 14. When the rake teeth 111 extend into the bottom of the base bed and fold upward, the loosened base material is placed between the two receiving baffles 14. Through the cooperation of the two receiving baffles 14, the base material of the base bed is prevented from falling to both sides of the conveyor belt 1 during the flipping process. The baffles are fixed on the support frame 4.

[0039] A support plate 13 is provided in the middle of the conveyor belt, and a soft pad is provided on the upper surface of the support plate 13. During the movement of the conveyor rake 11, the pressing space 12 is placed on the soft pad. In this embodiment, the soft pad can be a sponge pad or a pad made of cotton, etc., and it is fixed to the support plate 13 by adhesive. The support plate 13 is fixedly connected to the support frame 4. The support plate 13 provides a certain support force for the earthworms and substrate on the conveyor belt, so that the conveyor rake 11 cooperates with the support plate 13 to squeeze the earthworms and substrate into the pressing space 12, preventing the earthworms from crawling out and falling onto the outer side of the conveyor belt 1.

[0040] Those skilled in the art should know that annular slide rails can be provided in the middle and / or at both ends of the feeding roller, and support wheels 22 corresponding to the slide rails are provided on the fixed frame. The separation roller 2 is supported by the support wheels 22, and the separation roller 2 rolls on the fixed frame. One or more support wheels 22 can be driven to rotate by an engine or motor. The specific driving method is prior art and will not be described in detail here. The actuating roller 3 can be set at the end of the transmission belt through a frame (not shown in the figure). The actuating roller 3 and the frame can be rotatably connected by bearings. The frame can be welded to the fixed frame as a whole. Those skilled in the art should be able to set up various frames, fixed frames, and support frames 4 with different shapes or structures according to the needs or the different vehicles (such as tractors, tricycles, etc.) mounted on the harvester. The specific structures will not be described in detail here.

[0041] The earthworm harvesting machine of this utility model, during operation, first controls the angle of the conveyor belt 1 by the hydraulic cylinder, so that the two receiving baffles 14 at the bottom of the conveyor belt 1 are placed on both sides of the base bed, and the bottom of the conveyor belt 1 is placed at the bottom of the base bed protruding from the ground. The conveyor belt 1 is started, so that the conveying rake 11 is inserted under the base bed, and the substrate and earthworms on the base bed are turned and thrown towards the conveyor belt 1. The conveyor belt 1 then transports them to the top of the separating drum 2 until they fall into the separating drum 2. The rotating separating drum 2 separates the earthworms and substrate, thereby obtaining earthworms with a small amount of soil attached, completing the earthworm harvesting. Afterwards, the hydraulic cylinder is started again to lift the support frame 4 upward, so that the bottom of the conveyor belt 1 is away from the ground, so that the harvester can drive away.

[0042] 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, improvements, etc., 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. An earthworm harvesting machine, characterized in that: include The conveyor belt includes a receiving end and a discharging end. The length direction of the conveyor belt forms an angle with the horizontal plane, and the discharging end is located above the receiving end. The conveyor belt is equipped with multiple conveying rakes, and the supporting rakes include a fixing strip. Multiple rake teeth are fixed on the fixing strip. The fixing strip is fixed to the belt body of the conveyor belt. The rake teeth are arc-shaped, and the arc-shaped opening faces the surface of the conveyor belt, so that there is a pressing space between the rake teeth and the conveyor belt. When the conveying rake moves to the receiving end, the tip of the rake teeth of the conveying rake can extend outward beyond the area of ​​the conveyor belt. A pawl roller is positioned outside the material feeding end of the conveyor belt, and at least one pawl is provided on the pawl roller. When the pawl roller rotates, the pawl can contact the tip of the rake tooth that moves to the material feeding end, causing the rake tooth to vibrate away from the conveyor belt. The separating drum has openings at both ends, and the axial direction of the separating drum forms an angle with the horizontal plane. The top opening is located directly below the receiving end, and the side wall of the separating drum is surrounded by a screen.

2. The earthworm harvesting machine according to claim 1, characterized in that: There is a gap between each pair of adjacent rake teeth.

3. The earthworm harvesting machine according to claim 2, characterized in that: The actuating roller is provided with multiple clusters of bristles, which correspond to the gaps between the bristles and the rake teeth. When the conveying rake moves to the discharge end, the bristles can extend into the gaps.

4. The earthworm harvesting machine according to claim 1, characterized in that: When the conveyor rake moves to the discharge end, it can extend beyond the projection range of the conveyor belt. The pawl contacts the end of the rake teeth of the conveyor rake that extends beyond the projection range of the conveyor belt, causing the conveyor rake to vibrate.

5. An earthworm harvesting machine according to claim 1, characterized in that: It also includes a fixed frame, with support frames on both sides of the conveyor belt, the two ends of the drive roller of the conveyor belt being rotatably connected to the support frames, the top of the support frame being hinged to the fixed frame, and the middle of the fixed frame being connected to the support frame through a hydraulic cylinder, with the two ends of the hydraulic cylinder being hinged to the support frame and the fixed frame respectively.

6. The earthworm harvesting machine according to claim 1, characterized in that: The conveyor belt is also equipped with receiving baffles on both sides of the receiving end, and the part of the conveyor rake that moves to the receiving end and protrudes from the conveyor belt is placed between the two receiving baffles.

7. An earthworm harvesting machine according to claim 1, characterized in that: The conveyor belt is provided with a support plate in the middle, and a soft pad is provided on the upper surface of the support plate. The pressing space is placed on the soft pad during the movement of the conveyor rake.

8. An earthworm harvesting machine according to claim 1, characterized in that: The bottom opening of the separating roller extends outward into a funnel shape.

9. An earthworm harvesting machine according to claim 8, characterized in that: A receiving box is provided below the horn opening.

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