An in-situ harvesting device applicable to multiple types of clams

Abstract

The present invention discloses an in-situ harvesting device applicable to various clams, which is characterized in that: the device includes a crawler vehicle, a collection mechanism and a harvesting and catching mechanism are arranged on the crawler vehicle, the collection mechanism includes a conveyor belt arranged on the crawler vehicle, the bottom end of the conveyor belt is the inlet end and the top end is the outlet end, the inlet end of the conveyor belt matches the outlet end of the harvesting and catching mechanism, a first inclined chute is further arranged on the top of the crawler vehicle, the first inclined chute is located below the outlet end of the conveyor belt, at the same time, the bottommost end of the first inclined chute is connected to the top end of a second inclined chute, a collection container is arranged at the bottommost end of the second inclined chute, a plurality of equally spaced first retaining bars are arranged on the surface of the conveyor belt, a support frame is arranged at the front end of the crawler vehicle, and the harvesting and catching mechanism is arranged below the support frame.

Description

Technical Field

[0001] The present invention relates to the field of agricultural machinery and equipment, and particularly to an in-situ harvesting device suitable for multiple types of clams. Background Art

[0002] Tidal flat shellfish are highly nutritious, with high protein content, low fat content, easy to be digested and absorbed by the human body, containing various vitamins, and at the same time having high medicinal value, so they are deeply favored by consumers. However, the harvesting operation of tidal flat shellfish has always been a major problem. At present, the traditional method is manual harvesting, which has a large labor intensity and low harvesting efficiency. Although some regions have developed harvesting machines for tidal flat shellfish, these mechanical equipment are only suitable for the harvesting of tidal flats with relatively hard geology, and at the same time still require a lot of manual assistance;

[0003] The geology of the North Yellow Sea tidal flat is complex, with sediment structures distributed in layers; traditional tidal flat shellfish harvesting machines are difficult to move on the North Yellow Sea tidal flat with complex sediment conditions, are prone to collapse, and have great limitations;

[0004] At the same time, the current tidal flat harvesting devices on the market are not adjustable. On the one hand, there is a problem of poor harvesting effect, and on the other hand, it is easy to damage the cave environment of tidal flat shellfish during the harvesting process, causing irreversible damage to tidal flat shellfish;

[0005] Moreover, the automated harvesting devices on the market have a single harvesting type and cannot adapt to the diversified aquaculture status. Therefore, there is a need for a method or device that can solve the above problems now. Summary of the Invention

[0006] The present invention is to solve the above-mentioned deficiencies existing in the prior art, and proposes an in-situ harvesting device with a simple structure, ingenious design, reasonable layout, which can efficiently and quickly realize the automatic harvesting operation of tidal flat clams and can adapt to the harvesting of multiple types of clams.

[0007] The technical solution of the present invention is: an in-situ harvesting device suitable for multiple types of clams, characterized in that: the device includes a crawler vehicle 1, and a collection mechanism and a harvesting mechanism are arranged on the crawler vehicle 1,

[0008] The collection mechanism includes a conveyor belt 3 arranged on the crawler vehicle 1. The bottom end of the conveyor belt 3 is the inlet end and the top end is the outlet end. The inlet end of the conveyor belt 3 is matched with the outlet end of the harvesting mechanism. A first inclined chute 4 is also arranged on the top of the crawler vehicle 1. The first inclined chute 4 is located below the outlet end of the conveyor belt 3. At the same time, the lowermost end of the first inclined chute 4 is connected to the top end of a second inclined chute 5, and a collection container 6 is arranged at the lowermost end of the second inclined chute 5. A plurality of equally spaced first retaining bars 7 are arranged on the surface of the conveyor belt 3,

[0009] A support frame 2 is provided at the front end of the crawler vehicle 1, and the harvesting mechanism is arranged below the support frame 2.

[0010] The described harvesting mechanism includes a vibrating screen support 8. The vibrating screen support 8 is hinged to the support frame 2 through a rotating shaft. An angle adjustment cylinder 10 is hinged to the top of the support frame 2, and the end of the working shaft of the angle adjustment cylinder 10 is hinged to a first connecting seat 11 on the vibrating screen support 8. A pair of rear swing rods 12 are hinged to the tail of the vibrating screen support 8, and a pair of front swing rods 13 are hinged to the middle of the vibrating screen support 8. The bottom ends of the rear swing rods 12 and the front swing rods 13 are both hinged to the outside of the movable support plate 14. A vibrating screen 15 is connected between the two movable support plates 14. A plurality of equally spaced second retaining bars 16 are arranged on the vibrating screen 15. At the front end of the vibrating screen support 8, two fixed support plates 17 are symmetrically arranged. A bottom plate is commonly connected between the two fixed support plates 17. A plurality of equally spaced inserting strips 19 are arranged on the bottom plate. All the inserting strips 19 and the bottom plate together form a harvesting plate mechanism. A transition rubber plate 29 is also connected between the tail end of the inserting strip 19 and the front end of the vibrating screen 15. A pair of rollers 30 are also arranged at the front end of the vibrating screen support 8.

[0011] The connecting shaft between the front swing rod 13 and the vibrating screen support 8 is located in the middle of the front swing rod 13. A double long hole 20 is opened at the top of the front swing rod 13. A cam link 21 is commonly supported between the two front swing rods 13. Second connecting seats 22 which are bolt - connected to the double long holes 20 are arranged at both ends of the cam link 21.

[0012] A hydraulic motor 23 is arranged on the vibrating screen support 8. A cam 24 is arranged on the output shaft of the hydraulic motor 23. The cam 24 is rotationally connected to a connecting rod 25, and the other end of the connecting rod 25 is hinged to a third connecting seat 26 arranged in the middle of the cam link 21.

[0013] The described second retaining bar 16 is composed of a plurality of equally spaced triangular plates 27. The bottom edge of the triangular plate 27 is connected to the vibrating screen 15. Its front side forms an angle A with the vibrating screen 15, and its rear side forms an angle B with the vibrating screen 15, and the angle of angle B is greater than the angle of angle A.

[0014] A winch 28 is also arranged at the tail end of the crawler vehicle. A steel wire rope is arranged on the winch 28, and a hook is arranged at the end of the steel wire rope.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] An in-situ harvesting device of this structural form applicable to various clams has a simple structure, ingenious design, and reasonable layout. Aiming at various problems existing in traditional types of automated harvesting devices during the working process, it designs a special structure. During the movement of the tracked vehicle, it can automatically harvest the clams on the beach into the harvesting mechanism, and the harvesting mechanism separates the clam larvae from the sediment by vibration. The clam larvae will be transported to the rear of the tracked vehicle by the conveyor belt and finally sent into the collection container through the chute. The harvesting mechanism in this in-situ harvesting device can change its inclination angle as needed, thereby changing the inclination angle of the harvesting plate mechanism at the front end of the harvesting mechanism when it inserts into the beach, so as to achieve the purpose of adjusting the harvesting depth for clams with different habits. That is to say, on the one hand, this device can realize automated harvesting operations, saving labor and improving work efficiency; on the other hand, it can also make adaptive adjustments according to different harvesting targets, with extremely strong versatility. And its manufacturing process is simple and the manufacturing cost is low. Therefore, it can be said that it has various advantages, is especially suitable for popularization and application in this field, and has a very broad market prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of an embodiment of the present invention.

[0018] Figure 2 is a structural schematic diagram of the tracked vehicle part in an embodiment of the present invention.

[0019] Figure 3 is the front view of an embodiment of the present invention.

[0020] Figure 4 is the top view of an embodiment of the present invention.

[0021] Figure 5 is Figure 4 the enlarged view of part A in

[0022] Figure 6 is a three-dimensional structural schematic diagram of the harvesting mechanism part in an embodiment of the present invention.

[0023] Figure 7 is a three-dimensional structural schematic diagram of the vibrating screen part in an embodiment of the present invention.

[0024] Figure 8 is a structural schematic diagram of the triangular plate part in an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following will describe the specific embodiments of the present invention in conjunction with the accompanying drawings. As Figures 1 to 8 shown: An in-situ harvesting device applicable to various clams includes a tracked vehicle 1 as a foundation. A collection mechanism and a harvesting mechanism are provided on the tracked vehicle 1,

[0026] The described collection mechanism includes a conveyor belt 3 provided on the crawler vehicle 1. The bottom end of the conveyor belt 3 is the inlet end, and the top end is the outlet end. The inlet end of the conveyor belt 3 is matched with the outlet end of the harvesting mechanism. A first inclined chute 4 is also provided on the top of the crawler vehicle 1. The first inclined chute 4 is located below the outlet end of the conveyor belt 3. At the same time, the bottom end of the first inclined chute 4 is connected to the top end of a second inclined chute 5. A collection container 6 is provided at the bottom end of the second inclined chute 5. A plurality of equally spaced first retaining bars 7 are provided on the surface of the conveyor belt 3.

[0027] A support frame 2 is provided at the front end of the crawler vehicle 1, and the harvesting mechanism is provided below the support frame 2.

[0028] The described harvesting mechanism includes a vibrating screen support 8. The vibrating screen support 8 is hinged to the support frame 2 through a rotating shaft. An angle adjustment cylinder 10 is hinged to the top of the support frame 2. The end of the working shaft of the angle adjustment cylinder 10 is hinged to a first connection seat 11 on the vibrating screen support 8. A pair of rear swing rods 12 are hinged to the tail of the vibrating screen support 8, and a pair of front swing rods 13 are hinged to the middle of the vibrating screen support 8. The bottom ends of the rear swing rods 12 and the front swing rods 13 are both hinged to the outside of a movable support plate 14. A vibrating screen 15 is connected between the two movable support plates 14. A plurality of equally spaced second retaining bars 16 are provided on the vibrating screen 15. At the front end of the vibrating screen support 8, two fixed support plates 17 are symmetrically provided. A bottom plate is commonly connected between the two fixed support plates 17. A plurality of equally spaced inserting bars 19 are provided on the bottom plate. All the inserting bars 19 and the bottom plate together form a harvesting plate mechanism. A transition rubber plate 29 is also connected between the tail end of the inserting bar 19 and the front end of the vibrating screen 15. A pair of rollers 30 are provided at the front end of the vibrating screen support 8.

[0029] The connecting shaft between the front swing rod 13 and the vibrating screen support 8 is located in the middle of the front swing rod 13. A double long hole 20 is opened at the top of the front swing rod 13. A cam link 21 is commonly supported between the two front swing rods 13. Second connection seats 22 connected to the double long hole 20 by bolts are provided at both ends of the cam link 21.

[0030] A hydraulic motor 23 is provided on the vibrating screen support 8. A cam 24 is provided on the output shaft of the hydraulic motor 23. The cam 24 is rotationally connected to a connecting rod 25, and the other end of the connecting rod 25 is hinged to a third connection seat 26 provided in the middle of the cam link 21.

[0031] The second baffle 16 is composed of a plurality of triangular plates 27 distributed at equal intervals. The bottom edge of the triangular plate 27 is connected to the vibrating screen 15. An angle A is formed between its front side edge and the vibrating screen 15, and an angle B is formed between its rear side edge and the vibrating screen 15. The angle of angle B is greater than the angle of angle A.

[0032] A winch truck 28 is further provided at the tail end of the tracked vehicle. A steel wire rope is provided on the winch truck 28, and a hook is provided at the end of the steel wire rope.

[0033] The working process of the in-situ harvesting device applicable to various clams in the embodiment of the present invention is as follows: When harvesting a certain type of clam, first select a suitable vibrating screen 15 according to the harvesting specifications of the target clam. Then, according to the habits of the target clam, control the angle adjustment cylinder 10 to work. The angle adjustment cylinder 10 will drive the entire vibrating screen bracket 8 to swing relative to the support frame 2, thereby changing the inclination angle of the harvesting plate mechanism at the front end of the vibrating screen bracket 8. In this way, the angle and depth at which the harvesting plate is inserted into the tidal flat can be adjusted, so as to adapt to the habits of the current target clam.

[0034] After the adjustment is appropriate, the staff drives the tracked vehicle 1 to move on the tidal flat. During the movement, the inclined harvesting plate mechanism will shovel up the sediment wrapped with clams. The sediment and the clams move together onto the vibrating screen 15. When the vibrating screen 15 vibrates, the agglomerated sediment is shaken apart, and the loose sediment falls back onto the tidal flat through the vibrating screen 15 again. The clams will move to the entrance of the conveyor belt 3 under the action of the vibrating screen 15 and be conveyed into the first inclined chute 4 under the action of the conveyor belt 3. Under the action of gravity, the clams slide down along the first inclined chute 4 and the second inclined chute 5 in sequence and finally enter the collection container 6; During the movement, if the staff finds that the current collection container 6 is already full, a new collection container 6 needs to be replaced in time.

[0035] During the harvesting process, a harvesting plate mechanism is further provided at the front end of the vibrating screen 15, which can evenly shovel up the surface of the tidal flat under the push of mechanical power. This structure can ensure that the vibrating mechanism will not contact the ground during the working process. On the one hand, it can protect the vibrating mechanism, and on the other hand, it can also ensure that the working frequency of the vibrating mechanism will not be affected, so as to realize the in-situ harvesting of clams.

[0036] The working process of the harvesting mechanism is as follows: The control system issues an instruction to the hydraulic motor 23 to control the operation of the hydraulic motor 23. The hydraulic motor 23 drives the cam 24 to rotate, and the cam 24 will drive the connecting rod 25 to continuously swing in space. The movement of the connecting rod 25 will pull the cam connecting rod 21 to act. Since both ends of the cam connecting rod 21 are fixedly connected to the top of the front swing rod 13, and the middle part of the front swing rod 13 is hinged on the vibrating screen support 8, when the top end of the front swing rod 13 continuously swings driven by the cam connecting rod 21, the bottom end of the front swing rod 13 will also drive the movable support plate 14 rotatably connected thereto to move. In this way, the vibrating screen 15 connected between the two movable support plates 14 will perform a reciprocating motion, thereby achieving the vibration effect.

[0037] When the vibrating screen 15 vibrates, by reasonably regulating the rotational speed of the hydraulic motor 23, the clam and sediment can be made to perform a periodic motion of being thrown backward and sliding downward. When the clam falls back onto the surface of the vibrating screen 15 again, a plurality of equally spaced second retaining bars 16 provided here will block the clam and fall onto the second retaining bar 16 at the rear (in the direction close to the conveyor belt 3) during the next backward throw. In this way, the purpose of gradually moving the clam backward can be achieved until the clam is sent to the inlet end of the conveyor belt 3.

[0038] Since the second retaining bar 16 is composed of a plurality of equally spaced triangular plates 27, during the vibration of the vibrating screen 15, impurities such as sediment with a relatively small volume will leak out through the gaps between adjacent triangular plates 27 and fall back onto the beach again, while the relatively large clams will be intercepted on the back side of the second retaining bar 16, specifically on the side of the rear side edge of the triangular plate 27. In order to ensure that the clams can be smoothly transported backward on the vibrating screen 15, the inclination angle of the rear side edge of the triangular plate 27 here is greater than that of its front side edge, that is, the front slope of the second retaining bar 16 is relatively gentle, while the rear slope is relatively steep. This structure can, on the one hand, allow the clams to cross the front slope and, on the other hand, use the rear slope to block the clams.

[0039] In the above-mentioned harvesting plate mechanism, the bottom plate is fixedly connected to the vibrating screen support 8, that is, the vibrating screen 15 always vibrates relative to the vibrating screen support 8, while the harvesting plate mechanism is relatively stationary. In order to make it easier for the harvesting plate mechanism to insert into the beach, a plurality of equally spaced insertion bars 19 are provided on the bottom plate, which is equivalent to forming a plane that can be inserted into the sediment with these insertion bars 19. Since the cross-sectional area of each insertion bar 19 is relatively small, the pressure is relatively large when inserting into the sediment, which is beneficial for it to insert into the beach.

Claims

1. An in-situ harvesting device applicable to various clam species, characterized in that: The described device includes a crawler vehicle (1), and a collection mechanism and a harvesting and catching mechanism are arranged on the crawler vehicle (1). The collection mechanism includes a conveyor belt (3) arranged on the crawler vehicle (1). The bottom end of the conveyor belt (3) is the inlet end, and the top end is the outlet end. The inlet end of the conveyor belt (3) is matched with the outlet end of the harvesting and catching mechanism. A first inclined chute (4) is further arranged on the top of the crawler vehicle (1). The first inclined chute (4) is located below the outlet end of the conveyor belt (3). At the same time, the lowermost end of the first inclined chute (4) is connected to the top end of a second inclined chute (5). A collection container (6) is arranged at the lowermost end of the second inclined chute (5). A plurality of equally spaced first retaining bars (7) are arranged on the surface of the conveyor belt (3). A support frame (2) is arranged at the front end of the crawler vehicle (1), and the harvesting and catching mechanism is arranged below the support frame (2). The harvesting and catching mechanism includes a vibrating screen support (8). The vibrating screen support (8) is hinged to the support frame (2) through a rotating shaft. An angle adjustment cylinder (10) is hinged to the top of the support frame (2). The end of the working shaft of the angle adjustment cylinder (10) is hinged to a first connecting seat (11) on the vibrating screen support (8). A pair of rear swing rods (12) are hinged to the tail of the vibrating screen support (8), and a pair of front swing rods (13) are hinged to the middle of the vibrating screen support (8). The bottom ends of the rear swing rods (12) and the front swing rods (13) are both hinged to the outer side of a movable support plate (14). A vibrating screen (15) is connected between the two movable support plates (14). A plurality of equally spaced second retaining bars (16) are arranged on the vibrating screen (15). Two fixed support plates (17) are symmetrically arranged at the front end of the vibrating screen support (8). A bottom plate is commonly connected between the two fixed support plates (17). A plurality of equally spaced inserting bars (19) are arranged on the bottom plate. All the inserting bars (19) and the bottom plate together form a harvesting plate mechanism. A transition rubber plate (29) is also connected between the tail end of the inserting bar (19) and the front end of the vibrating screen (15). A pair of rollers (30) are arranged at the front end of the vibrating screen support (8). The connecting shaft between the front swing rod (13) and the vibrating screen support (8) is located in the middle of the front swing rod (13). A double long hole (20) is opened at the top of the front swing rod (13). A cam link (21) is commonly supported between the two front swing rods (13). Second connecting seats (22) connected to the double long hole (20) through bolts are arranged at both ends of the cam link (21). A hydraulic motor (23) is arranged on the vibrating screen support (8). A cam (24) is arranged on the output shaft of the hydraulic motor (23). The cam (24) is rotationally connected to a connecting rod (25). The other end of the connecting rod (25) is hinged to a third connecting seat (26) arranged in the middle of the cam link (21). The second baffle strip (16) described above is composed of a plurality of triangular plates (27) evenly distributed at equal intervals. The bottom edge of the triangular plate (27) is connected to the vibrating screen (15). An angle A is formed between its front side edge and the vibrating screen (15), and an angle B is formed between its rear side edge and the vibrating screen (15). Moreover, the angle of angle B is greater than the angle of angle A. A winch truck (28) is further arranged at the tail end of the crawler vehicle. A steel wire rope is arranged on the winch truck (28), and a hook is arranged at the end of the steel wire rope.

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