A multi-functional shellfish harvester and method thereof

Abstract

The application discloses a multifunctional shellfish harvesting machine and a method thereof, and belongs to the technical field of fishery machines. The device comprises a harvesting device, an adjusting device, a conveying device, a sorting device and a cleaning device which are installed on a base. The harvesting device is used for digging and harvesting shellfish and can adjust the harvesting position through the adjusting device connected with the base. The sorting device is arranged behind the harvesting device and comprises a double-arc-shaped vibrating lifting device, a first rotary hub and a second rotary hub. The conveying device is arranged behind the harvesting device, and the cleaning device is arranged behind the conveying device. The water outlet of the nozzle of the cleaning device sprays towards the shellfish on the conveying device. The conveying device can convey the cleaned shellfish to the collecting box behind. The application realizes the effects of continuously digging, conveying, cleaning, sorting and collecting shellfish, overcomes the technical defects that the prior art cannot work continuously, and further increases the work efficiency.

Description

Technical Field

[0001] This invention belongs to the field of fishery machinery technology, specifically relating to a multifunctional shellfish harvesting machine and its method. Background Technology

[0002] With the improvement of people's living standards, the demand for seafood products is constantly increasing, providing a broad development space for the shellfish harvesting market. However, the traditional method of catching and harvesting shellfish relies on manual digging by workers. Due to the limited time frame, each harvest requires a large investment of human resources. For example, a worker can only harvest about 50 kilograms of scallops per day, resulting in high harvesting costs. The combination of short working hours and high manpower requirements makes scallop harvesting difficult and inefficient. The work is time-consuming, labor-intensive, and mentally taxing, leading to low overall efficiency in shellfish harvesting. Compared to traditional manual harvesting, using mechanized shellfish harvesting machines can reduce labor costs and increase harvesting speed. However, in the development of mechanized shellfish harvesting, the technology of some shellfish harvesting equipment is still immature. For example, digging equipment may have a fixed tilling depth while the shellfish's burrowing depth varies, resulting in a high rate of missed and damaged shellfish, causing many qualified shellfish to be unharvested in time or severely damaged during harvesting. This is detrimental to the sustainable development of shellfish resources and the improvement of product quality. Summary of the Invention

[0003] The purpose of this invention is to overcome the defects in the prior art and to provide a multifunctional shellfish harvesting machine and method thereof.

[0004] The specific technical solution adopted in this invention is as follows:

[0005] In a first aspect, the present invention provides a multifunctional shellfish harvester, comprising a base, and further comprising a harvesting device, an adjusting device, a conveying device, a sorting device, and a cleaning device mounted on the base; the base is symmetrically provided with several moving and turning devices, and a rear mud skid is provided at the rear; the harvesting device is used to dig up shellfish, located at the front end of the base, and its harvesting position can be adjusted by the adjusting device connected to the base; the harvesting device includes a spiral agitator, a sliding deflector, and a digging shovel; the spiral agitator is used to stir shellfish with mud and sand onto the mudflat surface, and is driven by a first transmission device connected to a first power device; the digging shovel is located behind the spiral agitator and rotatably connected to the base, and is used to dig up shellfish with mud and sand from the mudflat surface; a triangular sliding frame is horizontally slidably connected to the inner side of the digging shovel, and several sand-flowing openings are opened at the bottom; one side of the sliding deflector is rotatably connected to the digging shovel, and the outer side is rotatably connected to the triangular sliding frame, and is driven by a second transmission device connected to a second power device. The harvesting device is equipped with a sorting device at the rear. This device includes a double-arc vibrating lifting device, a first rotating hub, and a second rotating hub. The double-arc vibrating lifting device has a trough-shaped structure, with a first rotating hub and a second rotating hub rotatably connected from front to back inside. The bottom of the double-arc vibrating lifting device, containing the first and second rotating hubs for moving the shellfish backward, are both downward-convex arc-shaped structures with several elongated drainage ports for discharging shells smaller than the required size. The first and second rotating hubs are connected to a second power device via a second transmission device and a third transmission device, respectively, for driving. A conveying device is located at the rear of the harvesting device, and a cleaning device is located behind the conveying device. The nozzles of the cleaning device spray water onto the shellfish on the conveying device, which then transports the cleaned shellfish to a collection box at the rear.

[0006] Preferably, the traveling device includes track wheels and tracks; track wheels are respectively provided on the left and right sides of the front and rear of the base, and the outer sides of the two track wheels on the same side are respectively wrapped with tracks; the two track wheels at the front are respectively fixedly connected to the outer ends of two different front rotating shafts, and the inner side of each front rotating shaft is fixedly connected to the output shaft of the drive motor through a front coupling; the two track wheels at the rear are respectively fixedly connected to the outer ends of two different rear rotating shafts, and the inner side of each rear rotating shaft is fixedly connected to the output shaft of the drive motor through a rear coupling; each drive motor is mounted on the base through a drive motor bracket.

[0007] Preferably, a spiral bracket is slidably connected to the front end of the base; the front end of the spiral bracket is fixedly connected to both ends of the first power device; the upper and lower parts of the rear end of the spiral bracket are symmetrically provided with an upper square bearing seat and a lower square bearing seat, respectively, and the spiral disturbance rod is coaxially rotatably connected to the shaft holes of the upper and lower square bearing seats; the bottom of the spiral disturbance rod has spiral blades; the adjustment device includes an adjustment U-shaped frame, a front hydraulic push rod, a first hanger rod, a second hanger rod, and an adjustment connecting rod; the upper rear end of the spiral bracket is rotatably connected to the first hanger rod, and the middle part of the first hanger rod is rotatably connected to the adjustment connecting rod. The system is as follows: the adjusting connecting rod is rotatably connected to the base, and its two ends are rotatably connected to the two ends of the adjusting U-shaped frame; the lower part of the adjusting U-shaped frame is rotatably connected to the base, and the upper rear end is rotatably connected to one end of the front hydraulic push rod; the other end of the front hydraulic push rod is coaxially and movably connected to the front hydraulic cylinder; the front hydraulic cylinder is rotatably connected to the base; the two ends of the adjusting connecting rod are respectively rotatably connected to the second lifting rod, and the second lifting rod is rotatably connected to the upper front end of the digging shovel; the digging shovel is rotatably connected to the base via a connecting rod; the extension and retraction of the front hydraulic push rod changes the working distance of the auger disturbance rod and the digging shovel in the vertical direction.

[0008] Furthermore, the first power unit includes a first bracket, a first motor, a reducer, and a first sprocket, and the first transmission device includes a first chain and a first transmission sprocket;

[0009] The first bracket is fixedly connected to the spiral bracket, the reducer is fixedly connected to the first bracket, and the first motor is fixedly connected to the reducer; the first motor is rotatably connected to the first sprocket via the first chain, the first sprocket is rotatably connected to the first transmission sprocket via the first chain, and the first transmission sprocket is fixedly connected to the spiral disturbance rod.

[0010] Preferably, the second power unit includes a second bracket, a second motor, and a second sprocket, and the second transmission unit includes a second chain, a second transmission sprocket, a crankshaft, a crank, and a connecting rod center rod.

[0011] The second motor is fixedly connected to the base via the second bracket. The output shaft of the second motor is connected to the second transmission sprocket via the second sprocket. The second transmission sprocket is fixedly connected to the crank shaft. The end of the crank shaft is fixedly connected to the crank. The crank is rotatably connected to the connecting rod center rod. The connecting rod center rod is rotatably connected to the triangular sliding frame. The second motor can drive the sliding paddle to move back and forth.

[0012] Furthermore, the double-arc vibration lifting device is fixedly connected to the base via rubber buffer pads and shock-absorbing pins; the third transmission device includes a third chain, a third transmission sprocket, a fourth chain, and a fourth transmission sprocket; the second transmission sprocket is chain-driven to the third transmission sprocket via the third chain, and the third transmission sprocket is chain-driven to the fourth transmission sprocket via the fourth chain; the third transmission sprocket is fixedly connected to the end of the first rotating hub, and the fourth transmission sprocket is fixedly connected to the end of the second rotating hub; the rotation of the first and second rotating hubs can feed shellfish into the arc-shaped transport frame of the conveying device.

[0013] Preferably, the conveying device includes a lever, a rake claw, an arc-shaped transport frame, and a transition box. The arc-shaped transport frame is a trough-shaped structure with an arc-shaped bottom and open ends, with one side open and connected to the rear end of the double-arc vibrating lifting device. The lever is located inside the arc-shaped transport frame, with its upper end rotatably connected to the base, its side end rotatably connected to the rear hydraulic push rod, and its lower end rotatably connected to the rake claw. The rear hydraulic push rod is axially movable and connected to the rear hydraulic cylinder, which is rotatably connected to the base. The bottom of the rake claw contacts the bottom of the arc-shaped transport frame, and the rear hydraulic push rod enables the lever to drive the rake claw to move back and forth along the axis of the arc-shaped transport frame. One end of the arc-shaped transport frame is fixedly connected to the transition box, which is fixedly connected to the base. The bottom of the transition box has several V-shaped grooves along the direction of travel to block debris, and a collection box is provided below it. After sorting and cleaning, the shellfish can fall into the collection box through the V-shaped grooves.

[0014] Preferably, the cleaning device includes a cleaning pipe, nozzles, a sewage pump, a water tank, and a water pumping pipe; the water tank is fixed on the base and connected to the sewage pump through the water pumping pipe, and the sewage pump is connected to the cleaning pipe; the cleaning pipe is located above the arc-shaped transport frame, and several nozzles for rinsing shellfish mud and sand are arranged along its axis.

[0015] Secondly, the present invention provides a shellfish harvesting method using any of the multifunctional shellfish harvesters described in the first aspect, as follows:

[0016] Before the harvester starts working, the extension and retraction of the front hydraulic push rod in the adjustment device changes the vertical working distance of the spiral disturbance rod and the digging shovel, so as to facilitate the harvesting of shellfish in the tidal flats.

[0017] During operation, the harvester moves and turns its base across the mudflats via a traveling mechanism. A first power unit drives a spiral agitator via a first transmission device to stir and dilute the sand, while the digging shovel scoops up shellfish carrying mud and sand from the mudflat surface. A second power unit drives a triangular sliding frame to move inside the digging shovel via a second transmission device. This triangular sliding frame moves a sliding plate back and forth, which in turn moves the shellfish carrying mud and sand from the digging shovel into a double-arc vibrating lifting device. Simultaneously, a large amount of mud and sand leaks out through the sand outlet below the digging shovel. The second power unit drives a first rotating hub and a second rotating hub via a third transmission device. The hub rotates; during the rotation, shellfish smaller than the required size leak out from the inlet, while qualified shellfish are moved into the arc-shaped transport frame by the first and second rotating hubs; the rear hydraulic cylinder drives the rear hydraulic push rod to move the lever and rake claw left and right in the arc-shaped transport frame, while the cleaning device is turned on, and the nozzle sprays water onto the shellfish in the arc-shaped transport frame. With the rinsing of the cleaning device, a large amount of mud and sand in the shellfish is washed away; after cleaning, the lever is moved towards the transition box, and the shellfish are sent into the transition box by the rake claw. After passing through the V-shaped groove in the transition box to remove impurities, they slide down into the collection box below, completing the shellfish harvesting.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1) By using the base, adjustment device, first power device, first transmission device, harvesting device, second power device, second transmission device, third transmission device, sorting device and cleaning device in combination, the machine achieves continuous mining, conveying, sorting and cleaning, overcoming the technical defects of the prior art that cannot work continuously and cannot achieve classified harvesting, and also further improving work efficiency.

[0020] 2) This invention, through the coordinated use of a spiral disturbance rod, a sliding deflector plate, a digging shovel, a first rotating hub, a second rotating hub, and a triangular sliding frame, enables continuous operation while simultaneously achieving the sorting and harvesting of shellfish. Therefore, both work efficiency and economic benefits are greatly improved.

[0021] 3) This invention achieves the sorting of shellfish by using a second motor, a second sprocket, a second chain, a second transmission sprocket, a third chain, a third transmission sprocket, a fourth chain, and a fourth transmission sprocket in combination. This allows for the screening of shellfish while the machine is harvesting, thus reducing workload and operating costs. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a top view of the structure of the multifunctional shellfish harvester of the present invention;

[0024] Figure 2 This is a schematic diagram of the harvesting device of the present invention; wherein, (a) is a schematic diagram of the connection of the spiral disturbance rod, and (b) is a schematic diagram of the connection of the sliding plate and the digging shovel;

[0025] Figure 3 This is a schematic diagram of the overall structure of the sorting device and conveying device of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the multifunctional shellfish harvester of the present invention;

[0027] Figure 5 This is a schematic diagram of the bottom structure of the double-arc vibration lifting device of the present invention.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1-Base, 2-First power unit, 3-Harvesting device, 4-First transmission device, 5-Adjusting device, 6-Sorting device, 7-Conveying device, 8-Second power unit, 9-Second transmission device, 10-Third transmission device, 11-Crawler wheel, 12-Crawler, 13-Front shaft, 14-Rear shaft, 15-Front coupling, 16-Rear coupling, 17-Drive motor, 18-Drive motor bracket, 19-Cleaning device, 20-Agitating rheological device, 21-First motor, 22-Reducer, 23-First sprocket, 24-First chain, 25-First transmission sprocket, 26-First bracket, 27-Spiral bracket, 28-Spiral disturbance rod, 29-Upper square bearing seat, 30-Lower square bearing seat, 31-Digging shovel, 32-Quicksand inlet, 33-Triangular sliding frame, 34-Sliding lever, 35-Front hydraulic push rod, 36-Front hydraulic cylinder, 37- 38 - Rear hydraulic push rod, 39 - Rear hydraulic cylinder, 40 - First lifting rod, 41 - Adjusting connecting rod, 42 - Adjusting U-shaped frame, 43 - Sewage pump, 44 - Connecting rod center rod, 45 - Crank, 46 - Crank shaft, 47 - Water suction pipe, 48 - Cleaning pipe, 49 - Nozzle, 50 - Water tank, 51 - Collection box, 52 - Rear mud skid, 53 - Second bracket, 54 - Second motor, 55 - Second sprocket, 56 - Second transmission 57-Third chain, 58-Third transmission sprocket, 59-Fourth chain, 60-Fourth transmission sprocket, 61-Lever, 62-Arc-shaped transport frame, 63-Transfer box, 64-First rotating hub, 65-Second rotating hub, 66-Drainage port, 67-Double arc-shaped vibration lifting device, 68-Second lifting rod, 69-V-groove, 70-Rake claw, 71-Rubber buffer pad, 72-Shock-absorbing component pin, 73-Connecting rod. Detailed Implementation

[0030] The present invention will be further described and illustrated below with reference to the accompanying drawings and specific embodiments. The technical features of each embodiment of the present invention can be combined accordingly, provided that there is no mutual conflict.

[0031] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] Unless otherwise specified, the terms "front," "rear," "left," and "right" in this invention refer to... Figure 1The directions shown are for reference only. However, it should be clarified that this description is only for the convenience of describing the device structure and does not limit the scope of protection of this invention. Any appropriate modifications made by those skilled in the art based on this invention should fall within the scope of protection of this invention.

[0033] like Figure 1 and 4 As shown, this invention provides a multifunctional shellfish harvester. Besides a base 1, the invention also includes a harvesting device 3, an adjusting device 5, a conveying device 7, a sorting device 6, and a cleaning device 19 mounted on the base 1. Specifically, a first power unit 2 is located at the front of the base 1, the harvesting device 3 is mounted in front of the base 1, a first transmission device 4 is installed between the harvesting device 3 and the first power unit 2, the adjusting device 5 is installed between the harvesting device 3 and the base 1, the sorting device 6 is mounted in the middle of the base 1, the conveying device 7 is mounted behind the sorting device 6, a second power unit 8 is mounted above the sorting device 6, a second transmission device 9 and a third transmission device 10 are installed between the second power unit 8 and the sorting device 6, and the cleaning device 19 is mounted behind the conveying device 7.

[0034] The structure and connection method of each device will be explained in detail below.

[0035] In this invention, a plurality of moving and turning devices are symmetrically arranged on the base 1, and a rear mud skid 51 is provided at the rear. The rear mud skid 51 is used to support the collection box 50 and is fixedly connected to the base 1.

[0036] In a preferred embodiment of the present invention, the traveling device may include track wheels 11 and tracks 12. Specifically, track wheels 11 are respectively provided on the left and right sides at the front and rear of the base 1, that is, a total of four track wheels 11. The two track wheels 11 on the same side are respectively wrapped with tracks 12. The two track wheels 11 at the front are fixedly connected to the outer ends of two different front shafts 13. The inner side of each front shaft 13 is fixedly connected to the output shaft of the drive motor 17 through a front coupling 15. The two drive motors 17 controlling the front track wheels 11 are symmetrically mounted on the front end of the base 1 through drive motor brackets 18. The two track wheels 11 at the rear are fixedly connected to the outer ends of two different rear shafts 14. The inner side of each rear shaft 14 is fixedly connected to the output shaft of the drive motor 17 through a rear coupling 16. The two drive motors 17 controlling the rear track wheels 11 are symmetrically mounted on the rear end of the base 1 through drive motor brackets 18.

[0037] In this invention, the harvesting device 3, located at the front end of the base 1, is used for harvesting shellfish and can be adjusted in position via an adjusting device 5 connected to the base 1. For example... Figure 1 and 2As shown, the harvesting device 3 mainly includes a spiral agitator 28, a sliding deflector 34, and a digging shovel 31. The spiral agitator 28 is used to agitate shellfish carrying mud and sand onto the mudflat surface, and is driven by a first transmission device 4 connected to a first power device 2. The digging shovel 31 is located behind the spiral agitator 28 and is rotatably connected to the base 1, and is used to dig up the shellfish carrying mud and sand from the mudflat surface. The inner walls of both sides of the digging shovel 31 are symmetrically provided with parallel sliding grooves, each sliding groove having upper and lower layers. Triangular sliding frames 33 are slidably connected in the sliding grooves on both sides, and multiple parallel sand-flowing openings 32 are opened at the bottom, which are used to discharge most of the mud and sand from the shellfish during the digging process. One end of the sliding deflector 34 is rotatably connected to the digging shovel 31, and the outer side is rotatably connected to the triangular sliding frame 33, and is driven by a second transmission device 9 connected to a second power device 8. The horizontal sliding of the triangular sliding frame 33 allows the sliding plate 34 to move back and forth, so that as the shellfish move backward, the mud and sand can be discharged from the sand outlet 32.

[0038] In a preferred embodiment of the present invention, an agitating rheological device 20 is provided in front of the base 1. The agitating rheological device 20 includes a helical support 27 and a helical disturbance rod 28. The helical support 27 is slidably connected to the front end of the base 1. The front end of the helical support 27 is fixedly connected to both ends of the first power device 4. The upper and lower parts of the rear end of the helical support 27 are symmetrically provided with an upper square bearing seat 29 and a lower square bearing seat 30, respectively. The helical disturbance rod 28 is coaxially rotatably connected to the shaft holes of the upper square bearing seat 29 and the lower square bearing seat 30. The bottom of the helical disturbance rod 28 has helical blades to agitate shellfish carrying mud and sand to the surface of the mudflat. The adjusting device 5 includes an adjusting U-shaped frame 41, a front hydraulic push rod 35, a first hanging rod 39, a second hanging rod 68, and an adjusting connecting rod 40. The upper rear end of the helical support 27 is rotatably connected to the first hanging rod 39, and the first hanging rod 39 is rotatably connected to the middle part of the adjusting connecting rod 40. The adjusting connecting rod 40 is rotatably connected to the base 1, and its two ends are rotatably connected to the two ends of the adjusting U-shaped frame 41. The lower part of the adjusting U-shaped frame 41 is rotatably connected to the base 1, and the upper rear end is rotatably connected to one end of the front hydraulic push rod 35. The other end of the front hydraulic push rod 35 is coaxially and movably connected to the front hydraulic cylinder 36, which is rotatably connected to the base 1. The two ends of the adjusting connecting rod 40 are respectively rotatably connected to the second lifting rod 68, which is rotatably connected to the upper front end of the digging shovel 31. The digging shovel 31 is rotatably connected to the base 1 via the connecting rod 73. The extension and retraction of the front hydraulic push rod 35 changes the working distance of the spiral disturbance rod 28 and the digging shovel 31 in the vertical direction.

[0039] In a preferred embodiment of the present invention, the first power unit 2 includes a first support 26, a first motor 21, a reducer 22, and a first sprocket 23. The first transmission unit 4 includes a first chain 24 and a first transmission sprocket 25. The first support 26 is fixedly connected to the spiral support 27, the reducer 22 is fixedly connected to the first support 26, and the first motor 21 is fixedly connected to the reducer 22. The first motor 21 is rotatably connected to the first sprocket 23 via the first chain 24, the first sprocket 23 is rotatably connected to the first transmission sprocket 25 via the first chain 24, and the first transmission sprocket 25 is fixedly connected to the spiral disturbance rod 28. When the machine is working, the first motor 21 drives the first sprocket 23 to rotate via the first chain 24, the first sprocket 23 drives the first transmission sprocket 25 to rotate via the first chain 24, and the first transmission sprocket 25 drives the spiral disturbance rod 28 to rotate.

[0040] In a preferred embodiment of the present invention, the second power device 8 includes a second bracket 52, a second motor 53, and a second sprocket 54. The second transmission device 9 includes a second chain 55, a second transmission sprocket 56, a crank shaft 45, a crank 44, and a connecting rod center rod 43. The second motor 53 is fixedly connected to the base 1 via the second bracket 52. The output shaft of the second motor 53 is chain-driven to the second transmission sprocket 56 via the second sprocket 54. The second transmission sprocket 56 is fixedly connected to the crank shaft 45. The end of the crank shaft 45 is fixedly connected to the crank 44. The crank 44 is rotatably connected to the connecting rod center rod 43. The connecting rod center rod 43 is rotatably connected to the triangular sliding frame 33. The triangular sliding frame 33 is rotatably connected to the sliding paddle 34. The sliding paddle 34 is preferably made of a lightweight material and can be driven by the second motor 53 to move back and forth. When the machine is working, the second motor 53 drives the second transmission sprocket 56 to rotate through the second chain 55, the crank shaft 45 rotates through the second transmission sprocket 56, the crank 44 rotates through the crank shaft 45, the connecting rod center rod 43 rotates through the crank 44, the triangular sliding frame 33 slides through the connecting rod center rod 43, and the sliding of the triangular sliding frame 33 drives the sliding plate 34 to move.

[0041] When the machine is working, the sliding plate 34 is driven to rotate by the sliding of the triangular sliding frame 33 in the grooves on both sides of the digging shovel 31. Most of the mud and sand in the shellfish is discharged from the sand outlet 32 ​​at the bottom of the digging shovel 31 under the rotation of the sliding plate 34. At the same time, the guiding action of the sliding plate 34 sends the shellfish into the double arc-shaped vibration lifting device 67.

[0042] In this invention, such as Figure 3 As shown, a sorting device 6 is located behind the harvesting device 3. The sorting device 6 includes a double-arc vibrating lifting device 67, a first rotating hub 64, and a second rotating hub 65. The double-arc vibrating lifting device 67 has a trough-shaped structure, and inside, from front to back, are the first rotating hub 64 and the second rotating hub 65, which are used to move the shellfish backward. Figure 5 As shown, the bottom of the double-arc vibration lifting device 67, where the first rotating hub 64 and the second rotating hub 65 are located, is a downward-convex arc structure. The double-arc design, combined with a certain height difference, allows shellfish to enter the arc-shaped transport frame upwards while generating greater vibration to expel smaller shellfish. The bottom of the double-arc vibration lifting device 67 has multiple elongated drainage ports 66 for discharging shells smaller than the required size. The first rotating hub 64 is connected to the second power device 8 on the base 1 via the second transmission device 9 for driving; the second rotating hub 65 is connected to the second power device 8 on the base 1 via the third transmission device 10 for driving. During rotation, the first rotating hub 64 and the second rotating hub 65 drive the collected shells to rotate, and the resulting vibration causes small shells to be discharged from the drainage ports.

[0043] In a preferred embodiment of the present invention, the double-arc vibratory lifting device 67 is fixedly connected to the base 1 via a rubber buffer pad 71 and a shock-absorbing component pin 72. The second power unit 8 drives the first rotating hub 64 and the second rotating hub 65 in the double-arc vibratory lifting device 67 to rotate via a second transmission device 9 and a third transmission device 10. The double-arc vibratory lifting device 67 has a drainage port 66 at its bottom to facilitate the falling of small-sized shellfish and the interception of large-sized shellfish, thereby achieving shellfish size sorting. The first rotating hub 64 and the second rotating hub 65 transfer the qualified shellfish to the conveying device 7. When the machine is working, the second power unit 8 drives the second transmission device 9 and the third transmission device 10, thereby driving the first rotating hub 64 and the second rotating hub 65 to rotate. The shellfish on the digging shovel 31 are moved to the double-arc vibrating lifting device 67 by the guiding action of the sliding deflector 34. Under the rotation of the first rotating hub 64 and the second rotating hub 65 in the double-arc vibrating lifting device 67, smaller shellfish fall from the inlet 66, and larger shellfish are transported to the arc-shaped transport frame 62, thus realizing the sorting of shellfish.

[0044] In a preferred embodiment of the present invention, the third transmission device 10 includes a third chain 57, a third transmission sprocket 58, a fourth chain 59, and a fourth transmission sprocket 60. The second transmission sprocket 56 is chain-driven to the third transmission sprocket 58 via the third chain 57, and the third transmission sprocket 58 is chain-driven to the fourth transmission sprocket 60 via the fourth chain 59. The third transmission sprocket 58 is fixedly connected to the end of the first rotating hub 64, and the fourth transmission sprocket 60 is fixedly connected to the end of the second rotating hub 65. The rotation of the first rotating hub 64 and the second rotating hub 65 allows shellfish to be fed into the arc-shaped transport frame 62 of the conveying device 7. The output shaft of the second motor 53 is chain-driven to the second transmission sprocket 56 via the second sprocket 54 and the second chain 55; the second transmission sprocket 56 is chain-driven to the third transmission sprocket 58 via the third chain 57, and the third transmission sprocket 58 is chain-driven to the fourth transmission sprocket 60 via the fourth chain 59.

[0045] When the machine is working, the second motor 53 drives the second transmission sprocket 56 to rotate via the second sprocket 54 and the second chain 55. The second transmission sprocket 56 drives the third transmission sprocket 58 to rotate via the third chain 57, thereby driving the first rotating hub 64 to rotate. The second motor 53 drives the second transmission sprocket 56 to rotate via the second sprocket 54 and the second chain 55. The second transmission sprocket 56 drives the third transmission sprocket 58 to rotate via the third chain 57. The third transmission sprocket 58 drives the fourth transmission sprocket 60 to rotate via the fourth chain 59, thereby driving the second rotating hub 65 to rotate.

[0046] In this invention, a conveying device 7 is provided behind the harvesting device 3, and a cleaning device 19 is provided behind the conveying device 7. The nozzle 48 of the cleaning device 19 sprays water towards the shellfish located on the conveying device 7, and the conveying device 7 can transport the cleaned shellfish to the collection box 50 behind it.

[0047] As a preferred embodiment of the present invention, such as Figure 3 and 4As shown, the conveying device 7 includes a lever 61, a rake 70, an arc-shaped transport frame 62, and a transition box 63. The arc-shaped transport frame 62 is a groove-shaped structure with an arc-shaped bottom and open ends, with one side open and connected to the rear end of the double-arc vibrating lifting device 67. The lever 61 is located inside the arc-shaped transport frame 62, with its upper end rotatably connected to the base 1, its side end rotatably connected to the rear hydraulic push rod 37, and its lower end rotatably connected to the rake 70. The rear hydraulic push rod 37 is axially movable (i.e., coaxially slidingly connected) to the rear hydraulic cylinder 38, and the end of the rear hydraulic cylinder 38 is rotatably connected to the base 1. The bottom of the rake 70 contacts the bottom of the arc-shaped transport frame 62, and the rear hydraulic push rod 37 enables the lever 61 to drive the rake 70 to move back and forth along the axis in the arc-shaped transport frame 62. One end of the arc-shaped transport frame 62 is fixedly connected to the transition box 63, and both the arc-shaped transport frame 62 and the transition box 63 are fixedly connected to the base 1. The bottom of the transition box 63 is provided with several V-shaped grooves 69 along the direction of travel to block debris, and a collection box 50 is provided below it. After sorting and cleaning, the shellfish can fall into the collection box 50 through the V-shaped grooves 69.

[0048] When the machine is working, the rear hydraulic cylinder 38 drives the rear hydraulic rod 37 to rotate, and the rear hydraulic rod 37 drives the lever 61 to move left and right in the arc-shaped transport frame 62 for cleaning. The cleaned shellfish are sent to the transition box 63 through the rake claw 70, and the shellfish in the transition box 63 gradually slide into the collection box 50.

[0049] As a preferred embodiment of the present invention, such as Figure 3 and 4 As shown, the cleaning device 19 includes a cleaning pipe 47, nozzles 48, a sewage pump 42, a water tank 49, and a suction pipe 46. The water tank 49 is fixed to the base 1 and is connected to the sewage pump 42 via the suction pipe 46. The sewage pump 42 is connected to the cleaning pipe 47. The cleaning pipe 47 is located above the arc-shaped transport frame 62, and several nozzles 48 for rinsing shellfish sediment are arranged along its axis. That is, the cleaning pipe 47 and the suction pipe 46 are both fixedly connected to the sewage pump 42, the nozzles 48 are fixedly connected to the cleaning pipe 47, the sewage pump 42 is fixedly connected to the base, and the water tank 49 is located below the arc-shaped transport frame 62 and fixedly connected to the base 1. The sewage pump 42 is connected to the suction pipe 46, which can extend into the water tank 49. The cleaning pipe 47 is located above and behind the arc-shaped transport frame 62, and the nozzles 48 are aligned with the arc-shaped transport frame 62. Several nozzles 48 for rinsing shellfish sediment are installed on the cleaning pipe 47.

[0050] When the machine is working, turn on the sewage pump 42, and the water in the water tank 49 will be collected by the sewage pump 42 and transported to the nozzle 48 in sequence through the water pipe 46, the sewage pump 42 and the cleaning pipe 47. Turn on the nozzle 48 to rinse shellfish with mud and sand.

[0051] Based on the above-mentioned multifunctional shellfish harvester, the present invention also provides a shellfish harvesting method, which is as follows:

[0052] Before the harvester starts working, the extension and retraction of the front hydraulic push rod 35 in the adjustment device 5 is used to change the working distance of the spiral disturbance rod 28 and the digging shovel 31 in the vertical direction, so as to facilitate the harvesting of shellfish in the tidal flats.

[0053] During operation, the base 1 is moved and steered in the mudflats via a traveling device. The first power unit 2 drives the spiral disturbance rod 28 to agitate and dilute the sand via the first transmission device 4. The rotating spiral disturbance rod stirs the shellfish carrying mud and sand onto the mudflat surface. The digging shovel 31 scoops up the shellfish carrying mud and sand from the mudflat surface. The second power unit 8 drives the triangular sliding frame 33 to move inside the digging shovel 31 via the second transmission device 9. The triangular sliding frame 33 drives the sliding plate 34 to move back and forth. The moving sliding plate 34 moves the shellfish carrying mud and sand inside the digging shovel 31 into the double-arc vibrating lifting device 67. At the same time, a large amount of mud and sand leaks out through the sand outlet 32 ​​below the digging shovel 31.

[0054] Specifically, in this embodiment, the second power device 8 drives the crank shaft 45 to rotate through the second transmission device 9. The crank shaft 45 drives the crank 44 to rotate, and the crank 44 drives the connecting rod center rod 43 to rotate. The connecting rod center rod 43 drives the triangular sliding frame 33 to move in the grooves on both sides of the digging shovel 31. The triangular sliding frame 33 drives the sliding plate 34 to move back and forth. The moving sliding plate 34 moves the shellfish with mud and sand to the double arc-shaped vibration lifting device 67. At the same time, a large amount of mud and sand leaks out through the sand outlet 32 ​​below the digging shovel 31.

[0055] The second power unit 8 drives the first rotating hub 64 and the second rotating hub 65 to rotate via the third transmission device 10. During rotation, shellfish smaller than the required size leak out from the inlet 66, while compliant shellfish are propelled into the arc-shaped transport frame 62 by the first rotating hub 64 and the second rotating hub 65. The rear hydraulic cylinder 38 drives the rear hydraulic push rod 37 to move the lever 61 and the rake claw 70 left and right in the arc-shaped transport frame 62. At the same time, the cleaning device 19 is activated, spraying water onto the shellfish in the arc-shaped transport frame 62 through the nozzle 48. With the rinsing of the cleaning device 19, a large amount of mud and sand in the shellfish is washed away. After cleaning, the compliant shellfish are propelled towards the transition box 63 by the lever 61, and the shellfish are sent into the transition box 63 by the rake claw 70. After being cleaned by the V-shaped groove 69 in the transition box 63, they slide into the collection box 50 below, completing the shellfish harvesting.

[0056] This invention achieves continuous mining, conveying, cleaning, sorting and collecting of shellfish, overcoming the technical defects of existing technologies that cannot work continuously, thereby further increasing work efficiency.

[0057] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the invention. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, all technical solutions obtained through equivalent substitution or transformation fall within the protection scope of the present invention.

Claims

1. A multifunctional shellfish harvester, comprising a base (1), characterized in that, It also includes a harvesting device (3), an adjusting device (5), a conveying device (7), a sorting device (6), and a cleaning device (19) installed on the base (1); the base (1) is symmetrically provided with several moving and turning devices, and a rear mud skid (51) is provided at the rear; the harvesting device (3) is used to dig out shellfish, is located at the front end of the base (1), and can be adjusted in the harvesting position by the adjusting device (5) connected to the base (1); the harvesting device (3) includes a spiral disturbance rod (28), a sliding plate (34), and a digging shovel (31); the spiral disturbance rod (28) is used to stir the shellfish with mud and sand onto the beach. The surface is coated and driven by the first transmission device (4) and the first power device (2); the digging shovel (31) is located behind the spiral disturbance rod (28) and is rotatably connected to the base (1), and is used to dig shellfish with mud and sand from the surface of the mudflat; the inner side of the digging shovel (31) is horizontally slidably connected to the triangular sliding frame (33), and several quicksand openings (32) are opened at the bottom; one side of the sliding plate (34) is rotatably connected to the digging shovel (31), and the outer side is rotatably connected to the triangular sliding frame (33), and is driven by the second transmission device (9) and the second power device (8); the horizontal sliding of the triangular sliding frame (33) is driven by the second transmission device (9) and the second power device (8). Kinetic energy causes the sliding deflector (34) to move back and forth, allowing the shellfish to move backward while the mud and sand are discharged from the sand outlet (32); a sorting device (6) is provided behind the harvesting device (3), which includes a double-arc vibrating lifting device (67), a first rotating hub (64), and a second rotating hub (65); the double-arc vibrating lifting device (67) has a trough-shaped structure, and the first rotating hub (64) and the second rotating hub (65) for moving the shellfish backward are connected sequentially from front to back inside the double-arc vibrating lifting device (67); the first rotating hub (64) and the second rotating hub (65) are located in the double-arc vibrating lifting device (67) The bottom is a downward-convex arc structure, and has several long strip-shaped drainage ports (66) for discharging shellfish smaller than the required size; the first rotating hub (64) and the second rotating hub (65) are connected to the second power device (8) through the second transmission device (9) and the third transmission device (10) respectively to achieve driving; the harvesting device (3) is provided with a conveying device (7) behind it, and a cleaning device (19) is provided behind the conveying device (7). The nozzle (48) of the cleaning device (19) sprays water towards the shellfish located on the conveying device (7), and the conveying device (7) can transport the cleaned shellfish to the collection box (50) behind it; The base (1) is slidably connected to a spiral bracket (27) at its front end; the front end of the spiral bracket (27) is fixedly connected to both ends of the first power device (2); the upper and lower parts of the rear end of the spiral bracket (27) are respectively symmetrically provided with an upper square bearing seat (29) and a lower square bearing seat (30), and the spiral disturbance rod (28) is coaxially rotatably connected in the shaft hole of the upper square bearing seat (29) and the lower square bearing seat (30); the bottom of the spiral disturbance rod (28) has spiral blades; the adjustment device (5) includes an adjustment U-shaped frame (41), a front hydraulic push rod (35), a first hanging rod (39), a second hanging rod (68), and an adjustment connecting rod (40); the upper rear end of the spiral bracket (27) is rotatably connected to the first hanging rod (39), and the middle part of the first hanging rod (39) and the adjustment connecting rod (40) rotate. Connection; the adjusting connecting rod (40) is rotatably connected to the base (1), and both ends are rotatably connected to the two ends of the adjusting U-shaped frame (41); the lower part of the adjusting U-shaped frame (41) is rotatably connected to the base (1), and the upper part of the rear end is rotatably connected to one end of the front hydraulic push rod (35), and the other end of the front hydraulic push rod (35) is coaxially movably connected to the front hydraulic cylinder (36), and the front hydraulic cylinder (36) is rotatably connected to the base (1); the two ends of the adjusting connecting rod (40) are respectively rotatably connected to the second lifting rod (68), and the second lifting rod (68) is rotatably connected to the upper part of the front end of the digging shovel (31); the digging shovel (31) is rotatably connected to the base (1) through the connecting rod (73); the working distance of the spiral disturbance rod (28) and the digging shovel (31) in the vertical direction is changed by the extension and retraction of the front hydraulic push rod (35); The conveying device (7) includes a lever (61), a rake (70), an arc-shaped transport frame (62), and a transition box (63); the arc-shaped transport frame (62) is a groove-shaped structure with an arc bottom and open ends, with one side open and connected to the rear end of the double-arc vibrating lifting device (67); the lever (61) is located inside the arc-shaped transport frame (62) and above, with its upper end rotatably connected to the base (1), its side end rotatably connected to the rear hydraulic push rod (37), and its lower end rotatably connected to the rake (70); the rear hydraulic push rod (37) is axially movablely connected to the rear hydraulic cylinder (38), and the rear hydraulic cylinder (38) is axially connected to the base (1). The base (1) is rotatably connected; the bottom of the rake claw (70) contacts the bottom of the arc-shaped transport frame (62), and the rear hydraulic push rod (37) can cause the lever (61) to drive the rake claw (70) to move back and forth along the axis in the arc-shaped transport frame (62); a transition box (63) is fixedly connected to one end of the arc-shaped transport frame (62), and the transition box (63) is fixedly connected to the base (1); the bottom of the transition box (63) is provided with several V-shaped grooves (69) for blocking debris along the direction of travel, and a collection box (50) is provided below it. After sorting and cleaning, the shellfish can fall into the collection box (50) through the V-shaped grooves (69).

2. The multifunctional shellfish harvester according to claim 1, characterized in that, The traveling device includes track wheels (11) and tracks (12); track wheels (11) are provided on the left and right sides of the front and rear of the base (1), and the two track wheels (11) on the same side are respectively wrapped with tracks (12); the two track wheels (11) at the front are fixedly connected to the outer ends of two different front shafts (13), and the inner side of each front shaft (13) is fixedly connected to the output shaft of the front drive motor through a front coupling (15); the two track wheels (11) at the rear are fixedly connected to the outer ends of two different rear shafts (14), and the inner side of each rear shaft (14) is fixedly connected to the output shaft of the rear drive motor through a rear coupling (16); each drive motor is mounted on the base (1) through a drive motor bracket (18).

3. The multifunctional shellfish harvester according to claim 1, characterized in that, The first power unit (2) includes a first bracket (26), a first motor (21), a reducer (22) and a first sprocket (23), and the first transmission unit (4) includes a first chain (24) and a first transmission sprocket (25). The first bracket (26) is fixedly connected to the spiral bracket (27), the reducer (22) is fixedly connected to the first bracket (26), and the first motor (21) is fixedly connected to the reducer (22). The first motor (21) is rotatably connected to the first sprocket (23) through the first chain (24), the first sprocket (23) is rotatably connected to the first transmission sprocket (25) through the first chain (24), and the first transmission sprocket (25) is fixedly connected to the spiral disturbance rod (28).

4. The multifunctional shellfish harvester according to claim 1, characterized in that, The second power unit (8) includes a second bracket (52), a second motor (53), and a second sprocket (54). The second transmission unit (9) includes a second chain (55), a second transmission sprocket (56), a crank shaft (45), a crank (44), and a connecting rod center rod (43). The second motor (53) is fixedly connected to the base (1) via the second bracket (52). The output shaft of the second motor (53) is connected to the second transmission sprocket (56) via the second sprocket (54). The second transmission sprocket (56) is fixedly connected to the crank shaft (45). The end of the crank shaft (45) is fixedly connected to the crank (44). The crank (44) is rotatably connected to the connecting rod center rod (43). The connecting rod center rod (43) is rotatably connected to the triangular sliding frame (33). The second motor (53) can drive the sliding plate (34) to move back and forth.

5. A multifunctional shellfish harvester according to claim 4, characterized in that, The double-arc vibration lifting device (67) is fixedly connected to the base (1) through a rubber buffer pad (71) and a shock-absorbing component pin (72); the third transmission device (10) includes a third chain (57), a third transmission sprocket (58), a fourth chain (59) and a fourth transmission sprocket (60); the second transmission sprocket (56) is chain-driven connected to the third transmission sprocket (58) through the third chain (57), and the third transmission sprocket (58) is chain-driven connected to the fourth transmission sprocket (60) through the fourth chain (59); the third transmission sprocket (58) is fixedly connected to the end of the first rotating hub (64), and the fourth transmission sprocket (60) is fixedly connected to the end of the second rotating hub (65); the rotation of the first rotating hub (64) and the second rotating hub (65) can send shellfish into the arc-shaped transport frame (62) of the conveying device (7).

6. A multifunctional shellfish harvester according to claim 1, characterized in that, The cleaning device (19) includes a cleaning pipe (47), a nozzle (48), a sewage pump (42), a water tank (49), and a water pumping pipe (46); the water tank (49) is fixed on the base (1) and is connected to the sewage pump (42) through the water pumping pipe (46), and the sewage pump (42) is connected to the cleaning pipe (47); the cleaning pipe (47) is located above the arc-shaped transport frame (62), and several nozzles (48) for rinsing shellfish mud and sand are arranged along its axis.

7. A shellfish harvesting method using the multifunctional shellfish harvester according to any one of claims 1 to 6, characterized in that, Specifically as follows: Before the harvester starts working, the working distance of the spiral disturbance rod (28) and the digging shovel (31) in the vertical direction is changed by the extension and retraction of the front hydraulic push rod (35) in the adjustment device (5) to facilitate the harvesting of shellfish in the tidal flats. When the harvester is running, the base (1) is driven to move and turn in the mudflat by the traveling device; the first power unit (2) drives the spiral disturbance rod (28) to stir and dilute the sand through the first transmission device (4), and the digging shovel (31) digs up the shellfish with mud and sand from the surface of the mudflat; the second power unit (8) drives the triangular sliding frame (33) to move inside the digging shovel (31) through the second transmission device (9), and the triangular sliding frame (33) drives the sliding plate (34) to move back and forth. The sliding plate (34) moves the shellfish with mud and sand in the digging shovel (31) into the double arc-shaped vibration lifting device (67). At the same time, a large amount of mud and sand leaks out through the sand outlet (32) below the digging shovel (31); the second power unit (8) drives the first rotating hub (64) and the second rotating hub (65) to rotate through the third transmission device (10). During the rotation process, shellfish smaller than the required size leak out from the inlet (66), while qualified shellfish are moved into the arc-shaped transport frame (62) by the first rotating hub (64) and the second rotating hub (65). The rear hydraulic cylinder (38) drives the rear hydraulic push rod (37) to drive the lever (61) and the rake claw (70) to move left and right in the arc-shaped transport frame (62). At the same time, the cleaning device (19) is turned on, and the nozzle (48) sprays water onto the shellfish in the arc-shaped transport frame (62). With the rinsing of the cleaning device (19), a large amount of mud and sand in the shellfish is washed away. After cleaning, the lever (61) is moved towards the transition box (63), and the shellfish are sent into the transition box (63) by the rake claw (70). After the V-shaped groove (69) in the transition box (63) removes impurities, the shellfish slides down into the collection box (50) below, completing the shellfish harvesting.

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