Amphibious lotus root harvesting integrated device

Abstract

The application discloses a amphibious lotus root harvesting integrated equipment, which comprises a main frame, a water scouring mechanism, a collecting mechanism and a spiral wheel walking mechanism. The water scouring mechanism comprises a connecting frame and a nozzle assembly. The connecting frame is arranged at the rear end of the main frame in an inclined manner and is adjustable in pitch angle. The nozzle assembly is installed on the connecting frame and adjustable in position on the connecting frame. A plurality of nozzles are arranged on the nozzle assembly. The collecting mechanism comprises a propeller, a conveyor belt and a collecting bag. Two propellers are located at the front end of the main frame. Water flow generated by the rotation of the two propellers makes lotus roots enter the conveyor belt and then enter the collecting bag. Two spiral wheel walking mechanisms are symmetrically installed on the left and right sides of the main frame. The spiral wheel walking mechanism realizes the movement of the equipment in water and on land by changing the state of the spiral wheel. The equipment realizes amphibiousness, and the spraying range and distance are adjustable. In addition, the damage of lotus roots caused by additional pressure for sucking lotus roots is avoided.

Description

Technical Field

[0001] This invention belongs to the technical field of lotus root harvesting equipment, specifically an amphibious integrated lotus root harvesting device. Background Technology

[0002] Lotus roots typically grow in deep, sticky soils such as ponds, paddy fields, shallow pits, lakes, and river bends. Currently, lotus root harvesting is mainly done manually or through a combination of manual and semi-mechanical methods. Manual harvesting primarily involves digging directly with a bucket or using a high-pressure water gun to flush away the mud. While simple to operate, this method is extremely inefficient and labor-intensive. Semi-mechanical harvesting refers to workers using lotus root digging machines. Existing lotus root digging machines on the market use a platform equipped with a water pump, gasoline engine, and directional nozzles to flush away the soil around the lotus roots with high-pressure water. During operation, workers need to push the digging machine through the water to flush away the mud. This method has a limited flushing range, low reliability, and cannot operate in muddy environments such as wetlands.

[0003] Patent application number 201711362779.1 discloses a lotus root harvesting device, including an engine, a hull, a spiral propeller, a lotus root conveyor belt, a working chamber, a high-pressure water pump, an inlet pipe, an outlet pipe, a high-pressure jet pipe, a lotus root suction device, and spiral fan blades. During the lotus root harvesting process, the suction force generated by negative pressure and the suction force of the high-pressure water pump together draw the floating lotus roots into the pipes of the suction device. Centrifugal force generated by the circular motion throws mud from the water through the circular holes on the surface of the suction device. A shovel on the lotus root conveyor belt pushes the sucked lotus roots into the conveyor belt, completing the lotus root collection. However, this method of using additional pressure to suck up the lotus roots and then pushing them onto the conveyor belt easily leads to the suction device absorbing too much silt, causing blockages. This problem is particularly prominent in winter when water levels are low and ponds dry up, resulting in even more silt. Furthermore, if a lotus root breaks off inside the pipes during the suction process, the device becomes unusable. The lotus root conveyor belt can only transport one lotus root at a time, resulting in low work efficiency. In addition, the lotus root is easily damaged by the blades during the process of being pulled from the suction device into the conveyor belt.

[0004] Therefore, this invention designs an efficient and convenient amphibious lotus root harvesting integrated device that can adjust the angle and spray range of the lotus root. It can not only rinse the lotus root at the optimal position, but also wash the mud off the lotus root. At the same time, it can collect multiple lotus roots and apply them to waters of different depths, as well as complete the harvesting of lotus roots in environments with high mud content such as dried ponds and wetlands. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the technical problem to be solved by the present invention is to provide an amphibious lotus root harvesting integrated device.

[0006] The present invention solves the aforementioned technical problem by adopting the following technical solution:

[0007] An amphibious lotus root harvesting integrated device includes a main frame, a hydraulic flushing mechanism, a collection mechanism, and a spiral wheel walking mechanism; characterized in that the hydraulic flushing mechanism includes a connecting frame and a nozzle assembly; the connecting frame is inclinedly arranged at the rear end of the main frame and its pitch angle is adjustable, the nozzle assembly is installed on the connecting frame, the position of the nozzle assembly on the connecting frame is adjustable, and multiple nozzles are arranged on the nozzle assembly.

[0008] The collection mechanism includes a propeller, a conveyor belt, and a collection bag; two propellers are located at the front end of the main frame, and the water flow generated by the rotation of the two propellers pushes the lotus root onto the conveyor belt, and then into the collection bag.

[0009] Two spiral wheel travel mechanisms are symmetrically installed on the left and right sides of the main frame. When traveling in water, the spiral wheels of the spiral wheel travel mechanism are in an elevated state, and when traveling on land, the spiral wheels of the spiral wheel travel mechanism are in a descending state.

[0010] Furthermore, the hydraulic flushing mechanism also includes a water pump, a lead screw, a rotating connecting rod, an electric push rod, a stepper motor, a fixed bracket, and a nozzle drive motor; the two sides of the upper part of the connecting frame are rotatably connected to the two sides of the rear end of the main frame, and the two sides of the middle part of the connecting frame are rotatably connected to the middle part of the rear end of the main frame through rotating connecting rods; the electric push rod is located at the top of the main frame, and the push rod end of the electric push rod is rotatably connected to the upper end of the connecting frame; the stepper motor is located at the upper part of the connecting frame, the output shaft of the stepper motor is connected to one end of the lead screw, the other end of the lead screw is connected to the lower end of the connecting frame, the fixed bracket is slidably connected to the lead screw, the output shaft of the nozzle drive motor is connected to the nozzle assembly, and the water tank of the nozzle assembly is connected to the water pump through a water supply pipe.

[0011] Furthermore, the nozzle assembly includes an upper shell, an internal gear ring, a central shaft, a bottom shell, a retaining ring, a disc, a planetary gear system, a connector, a planetary carrier, and a nozzle. The top of the upper shell is fixedly connected to the housing of the nozzle drive motor of the water jet mechanism, and the periphery of the upper shell is connected to the end face of the internal gear ring. The upper end of the central shaft is connected to the output shaft of the nozzle drive motor, and the lower part of the central shaft is fixedly connected to the sun gear of the planetary gear system. The planet gears of the planetary gear system mesh with the internal gear ring. The center of the planetary carrier is rotatably connected to the lower end of the central shaft, and each end of the planetary carrier is fixedly connected to the corresponding planet gear of the planetary gear system. The bottom shell is fixedly connected to the central shaft, the retaining ring surrounds the periphery of the bottom shell and is fixedly connected to the disc, and the disc is fixedly connected to the central shaft. The upper shell, bottom shell, and retaining ring together form a water tank. Each connector passes through the end of the planetary carrier and is fixedly connected to the corresponding planet gear of the planetary gear system. The upper end of the connector is connected to the corresponding water outlet on the retaining ring, and the lower end of the connector is connected to the nozzle.

[0012] Furthermore, the collecting mechanism includes a fourth optical axis, a driving roller, a driven roller, a fifth optical axis, a sixth optical axis, a correction wheel, and a DC motor; the two ends of the fourth and fifth optical axes are rotatably connected to the left and right sides of the upper part of the main frame, and the two ends of the driving roller and multiple driven rollers are rotatably connected to the left and right sides of the lower part of the main frame; the conveyor belt is fitted onto the driving roller and multiple driven rollers and is arranged at an angle with the front higher than the back; the DC motor is located on the main frame, and the output shaft of the DC motor is connected to the fourth optical axis through a synchronous pulley assembly; the fourth optical axis is connected to the fifth optical axis and the driving roller through the synchronous pulley assembly; the two ends of the fifth optical axis are connected to the upper ends of the two sixth optical axes through bevel gear sets, and the lower ends of the two sixth optical axes are rotatably connected to the left and right sides of the main frame; the two correction wheels are arranged at intervals in the front middle part of the main frame, and the connecting shaft of each correction wheel is connected to the corresponding sixth optical axis and the connecting shaft of the propeller through the synchronous pulley assembly.

[0013] Furthermore, the spiral wheel traveling mechanism includes a lifting beam, a spiral wheel, a first rod, a second rod, a first connecting member, a lead screw motor, a spiral wheel drive motor, and a third optical shaft; the lead screw motor is connected to the main frame, the lead screw of the lead screw motor is rotatably connected to the middle of the lifting beam, a third optical shaft is connected to each end of the lifting beam, the lower part of each third optical shaft is connected to the first connecting member, the side of the first connecting member is rotatably connected to one end of the second rod, the other end of the second rod is rotatably connected to the middle of the first rod, one end of the first rod is rotatably connected to the main frame, and the other end is connected to one end of the spiral wheel; the output shaft of the spiral wheel drive motor is connected to the tail of the spiral wheel.

[0014] Furthermore, the device also includes a solar energy mechanism; the solar energy mechanism includes a solar panel, a solar panel connecting plate, a first servo motor, a second servo motor, a middle support, and a bottom support; the bottom support is located at the top of the main frame, the second servo motor is mounted on the middle support, the output shaft of the second servo motor passes through the middle support and connects to the upper part of the bottom support, the first servo motor is mounted at the front end of the middle support, the output shaft of the first servo motor is perpendicular to the output shaft of the second servo motor, the solar panel connecting plate is connected to the output shaft of the first servo motor, and multiple solar panels are mounted in an array on the solar panel connecting plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. The collection mechanism of this equipment generates water flow by controlling two propellers to rotate in opposite directions. Under the action of the water flow, the lotus roots floating on the surface move from the front of the main frame inwards, and then onto the conveyor belt, avoiding damage to the lotus roots caused by applying additional pressure to suck them up. When the lotus roots pass the alignment wheels, because the distance between the two alignment wheels is less than the length of the lotus root, the lotus root cannot enter directly laterally, but can only enter the conveyor belt along its length, and then enter the collection bag. This allows the collection bag to hold more lotus roots. Moreover, since the distance between the two alignment wheels is the same as the width of the conveyor belt, multiple lotus roots can be collected simultaneously, reducing collection time.

[0017] 2. The hydraulic flushing mechanism of this equipment can expand the spraying range by changing the pitch angle of the connecting frame and the position of the nozzle assembly on the connecting frame, enabling it to flush out lotus roots at different depths. It is suitable for both shallow ponds and deep lakes. For lotus roots planted at shallow depths, the height of the nozzle assembly can be increased, and for lotus roots planted at deeper depths, the height of the nozzle assembly can be decreased. By adjusting the pitch angle, the nozzle can be aimed at the lotus root, causing the lotus root in the silt to float to the surface. When it is necessary to clean the residual silt off the lotus root, the water volume sprayed from the nozzle can be reduced or the nozzle angle can be changed. The nozzle assembly features multiple nozzles arranged in a planetary gear structure. Each nozzle revolves around a central axis while rotating on its own axis, forming a circular water flow. This circular water flow makes flexible contact with the lotus root, avoiding damage caused by the direct water flow striking the lotus root. The circular water flow also confines the lotus root within a small area, preventing it from moving away from the equipment under the impact of the direct water flow. This allows the lotus root to separate quickly from the silt, improving the lotus root harvesting rate.

[0018] 3. The two spiral wheel walking mechanisms of this equipment not only provide propulsion but also enable amphibious operation by changing the position of the spiral wheels. When moving in water, the spiral wheels are in an elevated state. Due to their hollow internal structure and drainage capacity, these wheels provide buoyancy, eliminating the need for additional floats or similar devices. When moving on land, the spiral wheels are in a descending state, contacting the ground and raising the main frame to prevent it from bumping against debris, thus smoothly transporting the collected lotus roots to land. Because of its amphibious advantages, this equipment can still complete harvesting and transfer lotus roots to designated locations on land even when ponds are dry and muddy in winter. This equipment can also be used as a transport tool in soft, muddy wetlands, making it widely applicable. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the hydraulic flushing mechanism of the present invention;

[0021] Figure 3 This is an exploded view of the nozzle assembly of the present invention;

[0022] Figure 4 This is a cross-sectional view of the upper shell of the present invention;

[0023] Figure 5 This is a schematic diagram of the retaining ring of the present invention;

[0024] Figure 6 This is a schematic diagram of the collection mechanism of the present invention;

[0025] Figure 7 This is a schematic diagram of the spiral wheel traveling mechanism of the present invention;

[0026] Figure 8 This is a schematic diagram of the spiral wheel in the lifted state of the present invention;

[0027] Figure 9 This is a schematic diagram of the spiral wheel in the descending state of the present invention;

[0028] Figure 10 This is a schematic diagram of the solar energy mechanism of the present invention;

[0029] Explanation of reference numerals in the attached drawings: 1. Main frame; 2. Hydraulic flushing mechanism; 3. Solar energy mechanism; 4. Collection mechanism; 5. Propeller wheel travel mechanism;

[0030] 21. Nozzle assembly; 22. Lead screw; 23. First optical axis; 24. Rotating connecting rod; 25. Electric push rod; 26. Stepper motor; 27. Connecting frame; 28. Second optical axis; 29. ​​Water pump; 210. Water supply pipe; 211. Fixed bracket; 212. Nozzle drive motor;

[0031] 2101. Fixing screw; 2102. Upper shell; 2103. Internal gear ring; 2104. Central shaft; 2105. Bottom shell; 2106. Retaining ring; 2107. Sealing ring; 2108. Disc; 2109. Planetary gear train; 2110. Connector; 2111. Planetary carrier; 2112. Nozzle;

[0032] 31. Solar panel; 32. Solar panel connecting plate; 33. First servo motor; 34. Second servo motor; 35. Middle support; 36. Bottom support;

[0033] 41. Fourth optical axis; 42. Drive roller; 43. Driven roller; 44. Conveyor belt; 45. Fifth optical axis; 46. Sixth optical axis; 47. Propeller; 48. Correction wheel; 49. DC motor;

[0034] 51. Lifting beam; 52. Screw wheel; 53. First rod; 54. Lead screw motor; 55. Screw wheel drive motor; 56. Third optical shaft; 57. Second rod; 58. First connecting piece. Detailed Implementation

[0035] Specific embodiments are given below with reference to the accompanying drawings. These specific embodiments are only used to explain the technical solutions of the present invention in detail and are not intended to limit the scope of protection of this application.

[0036] This invention relates to an amphibious integrated lotus root harvesting device (hereinafter referred to as the device, see [link]). Figures 1-10 The device includes a main frame 1, a hydraulic flushing mechanism 2, a collection mechanism 4, and a spiral wheel walking mechanism 5. The hydraulic flushing mechanism 2 is installed at the rear end of the main frame 1 and is used to spray water onto the silt to make the lotus roots float out of the silt and clean the floating lotus roots. The collection mechanism 4 is used to collect the lotus roots. The two spiral wheel walking mechanisms 5 are symmetrically installed on the left and right sides of the main frame 1 and are used to provide the power for the device to move forward in water and on land.

[0037] The hydraulic flushing mechanism 2 includes a nozzle assembly 21, a lead screw 22, a first optical axis 23, a rotating connecting rod 24, an electric push rod 25, a stepper motor 26, a connecting frame 27, a second optical axis 28, a water pump 29, a fixed bracket 211, and a nozzle drive motor 212. The connecting frame 27 is obliquely arranged at the rear end of the main frame 1. The two sides of the upper part of the connecting frame 27 are rotatably connected to both ends of the second optical axis 28, which is horizontally positioned at the upper part of the rear end of the main frame 1. The two sides of the middle part of the connecting frame 27 are rotatably connected to one end of the corresponding rotating connecting rod 24. The other end of each rotating connecting rod 24 is connected to the main frame 1. The rear end is rotatably connected, and the rotating linkage 24 consists of two rotatably connected linkages, used to limit the maximum pitch angle of the connecting frame 27; the electric push rod 25 is installed on the top of the main frame 1, and the push rod end of the electric push rod 25 is rotatably connected to the middle of the upper end of the connecting frame 27 through a triangular bracket, so that the pitch angle of the connecting frame 27 can be adjusted under the drive of the electric push rod 25; when the electric push rod 25 retracts inward, it drives the connecting frame 27 to rotate upward about the second optical axis 28 as the rotation axis, so that the angle between the connecting frame 27 and the rear side of the main frame 1 increases, that is, it increases the upward viewing angle of the connecting frame 27; similarly, ... When 25 is pushed outward, the angle between the connecting frame 27 and the rear side of the main frame 1 decreases, thus increasing the top view angle of the connecting frame 27; the stepper motor 26 is fixedly installed on the upper part of the connecting frame 27, and the output shaft of the stepper motor 26 is fixedly connected to one end of the lead screw 22 through a coupling. The other end of the lead screw 22 is fixedly connected to the lower end of the connecting frame 27 through a bearing seat. The first optical axis 23 is fixedly installed on the inner side of the connecting frame 27 through a bearing seat and is parallel to the lead screw 22. The rear part of the fixed bracket 211 is slidably connected to the lead screw 22 through a lead screw nut. The fixed bracket 211 is also fitted on the first optical axis 23 and slidably connected to the first optical axis 23. The nozzle drive motor 212 is connected to the fixed bracket 211, and the output shaft of the nozzle drive motor 212 is connected to the nozzle assembly 21 to drive all the nozzles on the nozzle assembly 21 to rotate. The water pump 29 is fixedly installed on the main frame 1. The water pump 29 is connected to the water tank of the nozzle assembly 21 through the water supply pipe 210. After being pressurized by the water pump 29, the external water is transported by the water supply pipe 210 and finally sprayed out from the nozzle head of the nozzle assembly 21. The stepper motor 26 drives the lead screw 22 to rotate, so as to realize the nozzle assembly 21 reciprocating up and down along the lead screw 22 to adjust the position of the nozzle on the connecting frame 27, thereby adjusting the spray distance and range.

[0038] The nozzle assembly 21 includes a fixing screw 2101, an upper housing 2102, an internal gear ring 2103, a central shaft 2104, a bottom housing 2105, a retaining ring 2106, a sealing ring 2107, a disc 2108, a planetary gear train 2109, a connecting nozzle 2110, a planetary carrier 2111, and a nozzle 2112; wherein, the top of the upper housing 2102 is fixedly connected to the housing of the nozzle drive motor 212, and the periphery of the upper housing 2102 is connected to the internal gear ring 2102 by fixing screws 2101. The gear ring 2103 is fixedly connected around its end face; the upper end of the central shaft 2104 is fixedly connected to the output shaft of the nozzle drive motor 212 via a coupling, and the lower part of the central shaft 2104 is fixedly connected to the sun gear of the planetary gear train 2109; the planetary gear train 2109 is located inside the internal gear ring 2103, and each planet gear of the planetary gear train 2109 meshes with the internal gear ring 2103; the central hole of the planet carrier 2111 is rotatably connected to the lower end of the central shaft 2104 via a bearing. Each end of the planetary carrier 2111 is fixedly connected to the corresponding planetary gears of the planetary gear train 2109; the central hole of the bottom shell 2105 is fixedly connected to the central shaft 2104; the retaining ring 2106 surrounds the bottom shell 2105 and multiple end ears protrude from the inner side of the retaining ring 2106 and are fixedly connected to the disk 2108; the disk 2108 is fixedly connected to the central shaft 2104; the bottom shell 2105, the retaining ring 2106, and the disk 2108 rotate synchronously with the central shaft 2104; the upper shell... 2102, bottom shell 2105 and retaining ring 2106 together form a water tank; each connector 2110 passes through the end of the planetary carrier 2111 and is fixedly connected to the corresponding planetary gear of the planetary gear train 2109. The upper end of the connector 2110 is connected to the corresponding water outlet of the retaining ring 2106. The connection is sealed by a sealing ring 2107. The lower end of the connector 2110 is connected to a nozzle 2112. Water in the water tank is sprayed out from the nozzle 2112 through the connector 2110. Under the action of the nozzle drive motor 212, the central shaft 2104 rotates, and the planetary gear system 2109, retaining ring 2106, and disc 2108 rotate together with the central shaft 2104. This causes each nozzle 2112 to revolve around the central shaft 2104 while also rotating on its own axis, thus forming a ring-shaped water flow. The ring-shaped water flow makes flexible contact with the lotus root, avoiding damage to the lotus root caused by the direct water flow. The ring-shaped water flow also encloses the lotus root in a small area, preventing it from moving away from the equipment under the impact of the direct water flow. This allows the lotus root to be separated from the silt quickly, improving the lotus root harvesting rate. The water tank consists of three parts: an upper shell 2102, a bottom shell 2105, and a retaining ring 2106. The retaining ring 2106 rotates with the central shaft 2104, effectively preventing friction between the water tank and the planetary gear system 2109, while ensuring water supply to the nozzles 2112 during rotation.

[0039] The collection mechanism 4 includes a fourth optical axis 41, a driving roller 42, driven rollers 43, a conveyor belt 44, a fifth optical axis 45, a sixth optical axis 46, a propeller 47, a correction wheel 48, a DC motor 49, and a collection bag (not shown in the figure). The ends of the fourth optical axis 41 and the fifth optical axis 45 are rotatably connected to the upper left and right sides of the main frame 1 via bearing seats. The ends of the driving roller 42 and multiple driven rollers 43 are rotatably connected to the lower left and right sides of the main frame 1 via bearing seats. The conveyor belt 44 is fitted onto the driving roller 42 and multiple driven rollers 43 and is arranged at an angle with the front higher than the back. The DC motor 49 is fixedly mounted on the main frame 1. The output shaft of the DC motor 49 is connected to the fourth optical axis 41 via a synchronous pulley assembly. The fourth optical axis 41 is connected to the fifth optical axis 45 via a synchronous pulley assembly. The fifth optical axis 45 is connected to the upper ends of the two sixth optical axes 46 via bevel gear sets. The lower ends of the two sixth optical axes 46 are rotatably connected to the left and right sides of the main frame 1 via bearing seats. Two correction wheels 48 are spaced apart in the front middle part of the main frame 1. The upper end of the connecting shaft of the correction wheel 48 is rotatably connected to the upper part of the main frame 1. The connecting shaft of each correction wheel 48 is connected to the connecting shaft of its corresponding sixth optical axis 46 and the propeller 47 via a synchronous belt pulley assembly. Two propellers 47 are spaced apart in the front end of the main frame 1. The upper end of the connecting shaft of the propeller 47 is rotatably connected to the upper part of the main frame 1. The collection bag is located behind the active roller 42. The opening of the collection bag is aligned with the output end of the conveyor belt 44 to ensure that the lotus roots on the conveyor belt 44 enter the collection bag smoothly. The collection mechanism 4 uses only one DC motor 49 to simultaneously drive the propeller 47, the correction wheel 48, and the conveyor belt 44. The two propellers 47 rotate in opposite directions, and the resulting water flow flows from the front end of the main frame 1 inward, causing the lotus roots floating on the water surface to move inward into the main frame 1. In addition, the rotation of the propellers 47 also provides auxiliary power for the overall forward movement of the equipment. When the lotus roots pass through the two correction wheels 48, due to the small distance between the two correction wheels 48, the lotus roots can only pass through the two correction wheels 48 along their length direction and enter the conveyor belt 44, avoiding the lotus root stalks collected on the conveyor belt 44 from facing multiple directions, thus improving the efficiency of conveying and collecting and increasing the collection capacity.

[0040] The spiral wheel traveling mechanism includes a lifting beam 51, a spiral wheel 52, a first rod 53, a second rod 57, a first connecting member 58, a lead screw motor 54, a spiral wheel drive motor 55, and a third optical shaft 56. The lead screw motor 54 is fixedly mounted on the main frame 1. The lead screw of the lead screw motor 54 is rotatably connected to the middle of the lifting beam 51 via a bearing. Both ends of the lifting beam 51 are fixedly connected to the upper ends of two third optical shafts 56, respectively. The middle of the shaft of each third optical shaft 56 passes through a bearing seat provided on the main frame 1. The lower part of each third optical shaft 56 is fixedly connected to the top of the first connecting member 58. The side of the connector 58 is rotatably connected to one end of the second rod 57, and the other end of the second rod 57 is rotatably connected to the middle of the first rod 53. One end of the first rod 53 is rotatably connected to the main frame 1, and the other end is fixedly connected to one end of the helical wheel 52. The helical wheel drive motor 55 is fixedly mounted on the helical wheel drive motor mounting bracket. One end of the helical wheel drive motor mounting bracket is rotatably connected to the main frame 1. The middle of the helical wheel drive motor mounting bracket is fixedly connected to the middle of the first rod 53 through a connecting rod. The output shaft of the helical wheel drive motor 55 is fixedly connected to the tail of the helical wheel 52, driving the helical wheel 52 to rotate. When the lead screw motor 54 drives the lifting beam 51 downward, the lifting beam 51 drives the third optical shafts 56 on both sides downward, the height of the first connecting member 58 decreases, causing the second rod 57 to drive the first rod 53 to rotate, thus lowering the spiral wheel 52 and bringing it into contact with the ground, thereby enabling the equipment to move on land. Similarly, when the lead screw motor 54 drives the lifting beam 51 upward, the spiral wheel 52 is raised, causing it to lose contact with the ground, thereby enabling the equipment to move in water. The two spiral wheel walking mechanisms adopt a differential steering method. The rotation speed of the two spiral wheels 52 is controlled by the two spiral wheel drive motors to achieve straight-line movement and turning of the equipment. When the rotation speed of the two spiral wheels 52 is the same, the equipment moves in a straight line. When the rotation speed of the two spiral wheels 52 is different, the equipment turns towards the side of the spiral wheel 52 with the lower speed.

[0041] The spiral wheel 52 has spiral patterns on the outside and a hollow structure inside. It has an opening at the head, allowing water to enter the spiral wheel 52. When the spiral wheel 52 floats on the water surface and the amount of water inside exceeds the height of the bottle opening, the excess water is discharged to the outside, thus having a certain drainage capacity and providing buoyancy for the equipment.

[0042] This equipment also includes a solar power mechanism 3 for powering the equipment. The solar power mechanism 3 is installed at the front end of the top of the main frame 1 and includes a solar panel 31, a solar panel connecting plate 32, a first servo motor 33, a second servo motor 34, a middle support 35, and a bottom support 36. The bottom support 36 is fixed to the main frame 1. The second servo motor 34 is installed on the middle support 35, and its output shaft passes through the middle support 35 and is fixedly connected to the upper part of the bottom support 36. The first servo motor 33 is installed at the front end of the middle support 35, and its output shaft is connected to... The back of the solar panel connecting plate 32 is fixedly connected, and the front of the solar panel connecting plate 32 is fixedly connected to the back of the two solar panels 31. The first servo motor 33 is used to drive the solar panel connecting plate 32 to rotate in the vertical plane, thereby changing the pitch angle of the solar panel 31. The second servo motor 34 is used to drive the central support 35 to rotate 360 ​​degrees in the horizontal plane, thereby changing the orientation of the solar panel 31 in the horizontal direction. The combined use of the first servo motor 33 and the second servo motor 34 enables the solar panel 31 to adjust the angle at which it receives sunlight, thereby improving the utilization rate of solar energy.

[0043] Furthermore, the distance between the two correction wheels 48 is the same as the width of the conveyor belt 44.

[0044] Furthermore, the device also includes a battery to power the device when the solar panel is unable to do so.

[0045] The working principle and process of this invention are as follows:

[0046] When the equipment operates in water, the spiral wheels 52 of the two spiral wheel walking mechanisms 5 are in a raised state, at which time the spiral wheels 52 are out of contact with the ground, providing buoyancy for the equipment. When it is necessary to flush the lotus roots, the hydraulic flushing mechanism 2 adjusts the pitch angle of the connecting frame 27 and the position of the nozzle assembly 21 on the connecting frame 27 through the electric push rod 25 and the stepper motor 26, respectively, according to factors such as the water depth, so as to flush the lotus roots in the optimal position. Then the water pump 29 starts to work, and the nozzles continuously spray high-pressure water into the silt, causing the lotus roots to float out of the silt. The spiral wheel walking mechanism 5 drives the equipment to move in the water, completing the flushing of the lotus roots in the entire water area, so that the lotus roots float on the water surface. If there is a lot of silt on the lotus roots, the hydraulic flushing mechanism 2 adjusts the pitch angle of the connecting frame 27 and the position of the nozzle assembly 21 on the connecting frame 27, according to factors such as the water depth. The flushing mechanism 2 reduces water pressure or changes the spray angle to spray water directly onto the lotus roots, washing away the mud. When collecting lotus roots floating on the water surface, the hydraulic flushing mechanism 2 stops working, and the water flow generated by the rotation of the two propellers 47 of the collecting mechanism 4 moves the floating lotus roots into the interior of the main frame 1. When the lotus roots pass the correction wheels 48, because the distance between the two correction wheels 48 is less than the length of the lotus root, the lotus root cannot enter directly laterally, but can only enter along its length onto the conveyor belt 44, and then enter the collection bag, allowing the collection bag to collect more lotus roots. The distance between the two correction wheels is basically the same as the width of the conveyor belt, which can accommodate multiple lotus roots at the same time, shortening the collection time. In addition, this equipment separates the flushing and collecting of lotus roots, avoiding the situation where the high-pressure jet continuously sprays into the water during flushing and collecting, resulting in a lot of mud and sand around the lotus roots, which can easily cause equipment blockage when collecting lotus roots.

[0047] When a certain weight of lotus roots has been collected, the staff controls the equipment to move towards land. When it reaches the boundary between the water and the land, the spiral wheel 52 of the spiral wheel walking mechanism 5 switches from the raised state to the lowering state, so that the spiral wheel 52 contacts the ground. Then it continues to move. After reaching the designated location, the staff removes the collection bag, thus completing one round of lotus root collection. If the lotus roots in the water have not been completely collected, the equipment replaces the empty collection bag and returns to the water to continue collecting. When it reaches the boundary between the land and the water, the spiral wheel 52 of the spiral wheel walking mechanism 5 switches from the lowering state to the raised state, and the collection work continues in the water.

[0048] Any aspects not covered in this invention are applicable to existing technologies.

Claims

1. An amphibious integrated lotus root harvesting device, comprising a main frame, a hydraulic flushing mechanism, a collection mechanism, and a spiral wheel traveling mechanism; characterized in that, The hydraulic flushing mechanism includes a connecting frame and a nozzle assembly; the connecting frame is inclinedly arranged at the rear end of the main frame and its pitch angle is adjustable; the nozzle assembly is installed on the connecting frame and its position on the connecting frame is adjustable; the nozzle assembly is provided with multiple nozzles. The collection mechanism includes a propeller, a conveyor belt, and a collection bag; Two propellers are located at the front of the main frame. The water flow generated by the rotation of the two propellers pushes the lotus roots onto the conveyor belt, and then into the collection bag. Two spiral wheel travel mechanisms are symmetrically installed on the left and right sides of the main frame. When traveling in water, the spiral wheels of the spiral wheel travel mechanism are in an elevated state, and when traveling on land, the spiral wheels of the spiral wheel travel mechanism are in a descending state. The nozzle assembly includes an upper shell, an internal gear ring, a central shaft, a bottom shell, a retaining ring, a disc, a planetary gear system, a connector, a planetary carrier, and a nozzle. The top of the upper shell is fixedly connected to the housing of the nozzle drive motor of the water jet mechanism, and the four sides of the upper shell are connected to the end face of the internal gear ring. The upper end of the central shaft is connected to the output shaft of the nozzle drive motor, and the lower part of the central shaft is fixedly connected to the sun gear of the planetary gear system. The planet gears of the planetary gear system mesh with the internal gear ring. The center of the planetary carrier is rotatably connected to the lower end of the central shaft, and each end of the planetary carrier is fixedly connected to the corresponding planet gear of the planetary gear system. The bottom shell is fixedly connected to the central shaft, the retaining ring surrounds the bottom shell and is fixedly connected to the disc, and the disc is fixedly connected to the central shaft. The upper shell, bottom shell, and retaining ring together form a water tank. Each connector passes through the end of the planetary carrier and is fixedly connected to the corresponding planet gear of the planetary gear system. The upper end of the connector is connected to the corresponding water outlet on the retaining ring, and the lower end of the connector is connected to the nozzle. The collecting mechanism includes a fourth optical axis, a driving roller, a driven roller, a fifth optical axis, a sixth optical axis, a correction wheel, and a DC motor. The two ends of the fourth and fifth optical axes are rotatably connected to the left and right sides of the upper part of the main frame. The two ends of the driving roller and multiple driven rollers are rotatably connected to the left and right sides of the lower part of the main frame. A conveyor belt is fitted onto the driving roller and multiple driven rollers and is arranged at an angle, higher in the front and lower in the back. The DC motor is located on the main frame, and its output shaft is connected to the fourth optical axis via a synchronous pulley assembly. The fourth optical axis is connected to the fifth optical axis and the driving roller via the synchronous pulley assembly. The two ends of the fifth optical axis are connected to the upper ends of the two sixth optical axes via bevel gear sets, and the lower ends of the two sixth optical axes are rotatably connected to the left and right sides of the main frame. Two correction wheels are spaced apart in the front middle part of the main frame, and the connecting shaft of each correction wheel is connected to the corresponding sixth optical axis and the connecting shaft of the propeller via the synchronous pulley assembly.

2. The amphibious lotus root harvesting integrated equipment according to claim 1, characterized in that, The hydraulic flushing mechanism also includes a water pump, a lead screw, a rotating connecting rod, an electric push rod, a stepper motor, a fixed bracket, and a nozzle drive motor. The two sides of the upper part of the connecting frame are rotatably connected to the two sides of the rear end of the main frame, and the two sides of the middle part of the connecting frame are rotatably connected to the middle of the rear end of the main frame through rotating connecting rods. The electric push rod is located at the top of the main frame, and the push rod end of the electric push rod is rotatably connected to the upper end of the connecting frame. The stepper motor is located at the upper part of the connecting frame, and the output shaft of the stepper motor is connected to one end of the lead screw, the other end of the lead screw is connected to the lower end of the connecting frame, the fixed bracket is slidably connected to the lead screw, the output shaft of the nozzle drive motor is connected to the nozzle assembly, and the water tank of the nozzle assembly is connected to the water pump through a water supply pipe.

3. The amphibious lotus root harvesting integrated equipment according to claim 1, characterized in that, The spiral wheel traveling mechanism includes a lifting beam, a spiral wheel, a first rod, a second rod, a first connecting member, a lead screw motor, a spiral wheel drive motor, and a third optical shaft. The lead screw motor is connected to the main frame, and the lead screw of the lead screw motor is rotatably connected to the middle of the lifting beam. A third optical shaft is connected to each end of the lifting beam. The lower part of each third optical shaft is connected to the first connecting member. The side of the first connecting member is rotatably connected to one end of the second rod, and the other end of the second rod is rotatably connected to the middle of the first rod. One end of the first rod is rotatably connected to the main frame, and the other end is connected to one end of the spiral wheel. The output shaft of the spiral wheel drive motor is connected to the tail of the spiral wheel.

4. The amphibious lotus root harvesting integrated equipment according to claim 1, characterized in that, The device also includes a solar energy mechanism; the solar energy mechanism includes solar panels, a solar panel connecting plate, a first servo motor, a second servo motor, a middle support, and a bottom support; the bottom support is located at the top of the main frame, the second servo motor is mounted on the middle support, the output shaft of the second servo motor passes through the middle support and connects to the upper part of the bottom support, the first servo motor is mounted at the front end of the middle support, the output shaft of the first servo motor is perpendicular to the output shaft of the second servo motor, the solar panel connecting plate is connected to the output shaft of the first servo motor, and multiple solar panels are mounted in an array on the solar panel connecting plate.

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