A jet-type lotus root harvester

Abstract

The present invention discloses a jet-type lotus root harvester, comprising a deck, with a plurality of paddle wheel travel devices provided on both sides of the deck; a cutting device provided on the front side of the jet device; a jet device provided on the front side of the deck, with a plurality of swingable nozzle pipe groups provided on the jet device; a roller salvaging device provided on the rear side of the deck; and a height adjustment device provided on the deck for driving the plurality of nozzle pipe groups to be raised and lowered. The modules of the present invention are combined with each other to separate the lotus roots from the stems and leaves and to harvest the lotus roots, cutting the lotus leaves and stems so that the lotus roots are no longer connected to the lotus leaves and stems to facilitate subsequent flushing of the lotus roots from the mud. After the lotus roots emerge from the mud, they enter the harvesting device and eventually end up in a collection bin. The lotus root harvesting efficiency is greatly improved, which can effectively meet the rapidly growing market demand for lotus roots.

Description

Technical Field

[0001] The invention relates to the field of lotus root harvesting, in particular to a jet-type lotus root harvester. Background Art

[0002] In the field of lotus root harvesting, existing technologies primarily focus on manual or semi-automatic lotus root harvesting machines. These include float-type hydraulic flushing harvesters and silt-removing harvesters. However, these methods suffer from low harvesting efficiency, high costs, and the need for manual labor to collect the lotus roots. Harvesting lotus roots from deepwater lotus roots is particularly challenging due to high labor intensity, harsh working environments, low production efficiency, and poor harvest quality.

[0003] Currently, the most widely used lotus root harvesting machine on the market is the floating lotus root harvester, primarily used for shallow-water lotus roots. While highly efficient, it still requires manual labor to operate the machine and pick the lotus roots. Furthermore, the lotus root harvesting period spans a wide range, with different varieties ripening from around the Mid-Autumn Festival to after the Frost's Descent. Traditional harvesting requires draining the water, hollowing out the soil beneath the lotus roots, and slowly pulling them out to avoid damage or breakage. Lotus root harvesting is a harsh working environment, and mechanical devices are rarely used. Labor shortages, high costs, and the difficulty of mechanized production are common problems, with labor costs accounting for 30% to 50% of production costs. Currently, high-pressure water guns are the primary method for digging lotus roots, which is 3-4 times more efficient than traditional methods. However, manual labor is still required, resulting in labor-intensive digging. Existing lotus root harvesting methods are inefficient and unable to meet the rapidly growing market demand. Summary of the Invention

[0004] In response to the above-mentioned deficiencies in the prior art, the present invention provides a jet-type lotus root harvester, which solves the problems in the prior art by integrating functional modules such as lotus leaf and stem cutting, nozzle flushing and digging lotus roots, drum salvage and collection, and remote control operation, thereby realizing fast, efficient and automatic lotus root harvesting.

[0005] In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is:

[0006] Provided is a jet-type lotus root harvester, comprising a deck, with a plurality of paddle wheel travel devices provided on both sides of the deck; a cutting device provided on the front side of the deck, for cutting lotus leaves and stems; a jet device provided on the front side of the deck, with a plurality of swingable nozzle pipe groups provided on the jet device, for swinging and flushing silt around the lotus roots; a roller salvaging device provided on the rear side of the deck, for collecting lotus leaves and stems and lotus roots; and a height adjustment device provided on the deck, for driving the plurality of nozzle pipe groups to rise and fall.

[0007] Furthermore, the cutting device includes an upper sliding tool, a lower fixed tool and a first motor fixing plate. The lower fixed tool is fixedly connected to the first motor fixing plate by two fixing rods. The upper sliding tool and the lower fixed tool are both serrated. Two sliding limit blocks are provided on the lower fixed tool. The upper sliding tool is provided with a sliding guide rail that cooperates with the sliding limit blocks. The upper sliding tool can slide left and right on the lower fixed tool. The first motor fixing plate is provided with a reciprocating drive mechanism that drives the upper sliding tool to swing left and right.

[0008] Furthermore, the reciprocating drive mechanism includes a cutting motor, a driving bevel gear, a vertical transmission shaft, an upper transmission bevel gear, a lower transmission bevel gear, a driven bevel gear and a driven shaft; the driving bevel gear is fixed to the output end of the cutting motor, one end of the vertical transmission shaft is fixed with the upper transmission bevel gear, and the other end is fixed with the lower transmission bevel gear, the upper transmission bevel gear is meshed with the driving bevel gear, the driven bevel gear is fixed to the middle part of the driven shaft, a cam is fixed to one end of the driven shaft, a swing frame is provided on the upper sliding tool, a vertical adjustment hole is provided on the swing frame, a swing arm matching the vertical adjustment hole is provided on the cam, and the cam drives the swing frame to move horizontally left and right through the swing arm.

[0009] Furthermore, the jet device includes a vertical screw slide, a connecting rod drive assembly, a driving connecting rod, an upper horizontal sliding bearing assembly, a lower horizontal sliding bearing assembly, two horizontal optical axes, two vertical optical axes and a jet main frame; the jet main frame is fixed to the front side of the deck, and the two horizontal optical axes are fixed parallel to the jet main frame; the connecting rod drive assembly is fixedly connected to the lifting slider of the vertical screw slide, and the connecting rod drive assembly is hinged with two driving connecting rods, and the bottoms of the two driving connecting rods are rotatably connected to the two upper horizontal sliding bearing assemblies; the two horizontal optical axes are provided with horizontal sliders connected to the upper horizontal sliding bearing assembly and the lower horizontal sliding bearing assembly, and the horizontal slider is provided with horizontal guide holes that cooperate with the horizontal optical axes; the upper horizontal sliding axis The bearing assembly and the lower horizontal sliding bearing assembly are both provided with vertical guide holes that cooperate with the vertical optical axis. Several horizontal sliders are fixedly connected to the upper horizontal sliding bearing assembly and the lower horizontal sliding bearing assembly, and the vertical optical axis can move in the up, down, left and right directions; two fixed sliders are provided on the jet main body frame, each fixed slider is provided with a vertical lifting hole, and a lifting rod is provided in the vertical lifting hole. A lifting plate is fixed to the bottom of the two lifting rods, and the lifting plate is connected to the height adjustment device. Two nozzle swing plates are provided on the lifting plate, and each nozzle swing plate is provided with a nozzle pipe group. The bottom of the vertical optical axis is rotatably connected to the top of the two nozzle swing plates respectively, and the vertical optical axis drives the two nozzle swing plates to swing left and right in the same vertical plane.

[0010] Furthermore, the nozzle pipe group is fixed to the nozzle swing plate by a U-shaped clip, and the rear side of the nozzle swing plate is hinged to the lifting plate through a vertical hinged end. Each nozzle swing plate can swing left and right in the same vertical plane; the vertical screw slide is fixedly connected to the deck through a screw fixing assembly, and a second hull shell is provided on the outside of the jet main frame; a lower threaded portion is provided at the bottom of the vertical optical axis, and the vertical optical axis is fixedly connected to the lifting plate through a number of nuts.

[0011] Furthermore, the drum salvage device includes two supporting arms and a main transmission shaft. The middle parts of the two supporting arms are correspondingly provided with rotating shaft through holes for installing the main transmission shaft. The main transmission shaft is installed in the rotating shaft through holes. Two transmission end covers are fixed on the main transmission shaft. A rotating tube is fixed between the two transmission end covers, and several groups of collecting rake nails are fixed on the outside of the rotating tube; one end of the two supporting arms is hinged to the deck, and the other end is fixed with a main baffle connecting arm, the bottom of the two main baffle connecting arms is fixed with a main baffle, and the sides of the main baffle are hingedly fixed with side baffles; the main transmission shaft is connected to the main transmission shaft driving mechanism.

[0012] Furthermore, a front end connecting shaft is provided at one end of the support arm, a support arm support seat cooperating with the connecting shaft is provided on the deck, and a flanged shaft sleeve cooperating with the main transmission shaft is provided in the rotating shaft through hole; a limiting turntable for installing the side baffle is provided on the side of the main baffle, and a baffle rotating shaft cooperating with the limiting turntable is provided on the side baffle, and the main baffle is hinged to the side baffle through the limiting turntable and the baffle rotating shaft; a plug-in hole for installing the main baffle connecting arm is provided at the other end of the support arm, and the main baffle connecting arm is plugged and fixed in the plug-in hole, and a rear end connecting shaft that passes through and fixes the main baffle connecting arm is provided on the side of the plug-in hole.

[0013] Furthermore, the main transmission shaft drive mechanism includes a salvage motor, a coupling, a motor transmission shaft, a driving sprocket, a chain and a driven sprocket. The output end of the salvage motor is connected to one end of the motor transmission shaft through a coupling. The other end of the motor transmission shaft is connected to the driving sprocket. The driving sprocket and the driven sprocket are connected through a chain. The driven sprocket is fixed on the main transmission shaft.

[0014] Furthermore, it also includes a second motor fixing plate for installing the salvage motor, and the second motor fixing plate is provided with a motor transmission shaft support seat for installing the motor transmission shaft.

[0015] Furthermore, the height adjustment device includes a lifting motor, a lifting driving gear, a lifting transmission gear, a worm, a worm wheel, a lifting transmission shaft, a lifting driven gear and a lifting rack; the lifting driving gear is installed at the output end of the lifting motor, the worm is installed on the deck, the lifting transmission gear is fixed to one end of the worm and meshes with the lifting driving gear, the worm wheel is fixed to one end of the lifting transmission shaft and meshes with the worm, the other end of the lifting transmission shaft is fixedly connected to the lifting driven gear, the bottom of the lifting rack is connected to the nozzle pipe group, and the lifting rack is meshed with the driven gear.

[0016] Furthermore, the worm is mounted on the deck through two bearing seats, a bearing seat pad is provided at the bottom of the bearing seat, and a supporting bearing seat for mounting a lifting transmission shaft is also provided on the deck, and an axial locking ring is fixed to the outside of the lifting transmission shaft.

[0017] Furthermore, the paddle wheel traveling device includes a front paddle wheel traveling device and a rear paddle wheel traveling device, the front paddle wheel traveling device is arranged on the front side of the deck, and the rear paddle wheel traveling device is arranged on the rear side of the deck.

[0018] Furthermore, the front paddle wheel traveling device includes a driving motor, a driving gear, a driven gear, a driving wheel shaft, a driving wheel hub, a paddle plate and a transition sleeve. The driving gear is installed on the driving wheel shaft, and the driving gear is fixed to the output end of the driving motor. One end of the driving wheel shaft is installed on the deck, and several driving wheel hubs are fixed to the other end of the driving wheel shaft. Several paddle plates are arranged between adjacent driving wheel hubs, and transition sleeves that cooperate with the driving wheel shaft are arranged between several driving wheel hubs.

[0019] Furthermore, the rear paddle wheel propulsion device includes a driven wheel axle, a driven wheel hub and a support shaft. One end of the driven wheel axle is installed on the deck, and a number of driven wheel hubs are fixed to the other end. A number of support shafts are arranged between the driven wheel hubs; the driving wheel axle and the driven wheel axle are both installed on the deck through two third bearing seats; the driving wheel hub and the driven wheel hub are both fixed through the shaft end cover.

[0020] The beneficial effects of the present invention are:

[0021] The boat-type lotus root harvester of the present invention achieves automation and integration of the lotus root harvesting process by integrating functions such as lotus leaf and stem cutting, nozzle flushing and digging lotus roots, drum salvage and collection, and remote control operation. The lotus root harvester can adapt to different water depths and terrain conditions, improve lotus root harvesting efficiency, and reduce labor intensity. At the same time, the modular design facilitates maintenance and repair, reduces maintenance costs, and extends the service life of the equipment. In addition, the invention also ensures the integrity of the lotus root during the harvesting process by using appropriate cutting tools and cutting solutions, reduces damage to the lotus root body, and increases the market value of lotus root products.

[0022] The modules of the present invention are combined with each other to separate the lotus roots from the stems and leaves and to harvest the lotus roots. The lotus leaves and stems are cut so that the lotus roots are no longer connected to the lotus leaves and stems, so that the lotus roots can be washed out of the mud later. After the lotus roots float out of the mud, they enter the harvesting device and finally arrive at the collection bin.

[0023] This invention integrates modules such as lotus leaf and stem cutting, nozzle flushing and digging, and drum salvaging and collection, enabling a complete lotus root harvesting process, significantly improving harvesting efficiency. Remote control eliminates the need for harvesters to enter the water, significantly reducing labor intensity. The machine is amphibious and adaptable to various deep-water lotus ponds. Through its modular design and simple mechanical structure, the machine reduces manufacturing costs while maintaining functionality. Furthermore, the use of standard components and common materials further reduces costs. The lotus root harvester designed in this invention is suitable for harvesting lotus roots at various water depths, offering significant adaptability advantages over existing machines. The machine integrates lotus leaf collection and processing with lotus root harvesting. The nozzles implement feedback control, automatically adjusting the height above the mud surface and the flushing range. The modular design allows for flexible assembly and maintenance, while remote control makes operation even more convenient. The integration and optimization of these technologies give the present invention significant advantages in terms of improved efficiency, reduced costs, reduced labor intensity, expanded applicability, and operational flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a right side view of the present invention;

[0026] Figure 3 This is a schematic diagram of the installation of the paddle wheel travel device;

[0027] Figure 4 for Figure 3 A partial enlarged view of point A in the middle;

[0028] Figure 5 It is a schematic diagram of the overall structure of the drum salvage device;

[0029] Figure 6 It is a structural diagram of the driving part in the drum salvage device;

[0030] Figure 7 is a schematic structural diagram of a cutting device;

[0031] Figure 8 It is a right side view of the cutting device;

[0032] Figure 9 Schematic diagram of the structure of the jet device;

[0033] Figure 10 It is a structural schematic diagram of the height adjustment device;

[0034] Figure 11 Schematic diagram of the coordination between the jet device and the height adjustment device Figure 1 ;

[0035] Figure 12 Schematic diagram of the coordination between the jet device and the height adjustment device Figure 2 ;

[0036] The main components in the figure are described as follows:

[0037] 1. Cutting device; 101. Upper sliding cutter; 102. Lower fixed cutter; 103. Sliding guide rail; 104. Sliding stopper; 105. Cutting motor; 106. Driving bevel gear; 107. Vertical transmission shaft; 108. Upper transmission bevel gear; 109. Lower transmission bevel gear; 110. Driven bevel gear; 111. Swing frame; 112. Cam; 113. Mounting plate; 114. Fixing rod; 115. First motor fixing plate; 116. Linear bearing; 117. Spacer; 118. First bearing seat; 119. Driven shaft; 120. Driven shaft mounting end;

[0038] 2. Fluidic device; 201. Vertical screw slide; 202. Lifting slider; 203. Connecting rod drive assembly; 204. Driving connecting rod; 205. Upper horizontal sliding bearing assembly; 206. Lower horizontal sliding bearing assembly; 207. Horizontal slider; 208. Horizontal optical axis; 209. Vertical optical axis; 210. Fixed slider; 211. Lifting rod; 212. Lifting plate; 213. Nozzle pipe assembly; 214. Nozzle swing plate; 215. Vertical hinge end; 216. U-shaped buckle; 217. Fluidic main frame; 218. Screw fixing assembly; 219. Second hull shell; 220. Lower threaded portion;

[0039] 3. Drum salvage device; 301. Support arm; 302. Main transmission shaft; 303. Transmission end cover; 304. Rotating tube; 305. Collecting rake nails; 306. Main baffle connecting arm; 307. Main baffle; 308. Side baffle; 309. Salvage motor; 310. Coupling; 311. Motor transmission shaft; 312. Driving sprocket; 313. Chain; 314. Driven sprocket; 315. Support arm support seat; 316. Front connecting shaft; 317. Flanged bushing; 318. Limiting turntable; 319. Baffle rotating shaft; 320. Rear connecting shaft; 321. Second motor fixing plate; 322. Motor transmission shaft support seat;

[0040] 4. Height adjustment device; 401. Lifting motor; 402. Lifting driving gear; 403. Lifting transmission gear; 404. Worm; 405. Worm gear; 406. Lifting transmission shaft; 407. Lifting driven gear; 408. Lifting rack; 409. Second bearing seat; 410. Bearing seat spacer; 411. Axial locking ring; 412. Support bearing seat;

[0041] 5. Paddle wheel travel device; 501. Driving motor; 502. Driving gear; 503. Driven gear; 504. Limiting ring; 505. Third bearing seat; 507. Driving wheel shaft; 508. Driving wheel hub; 509. Paddle plate; 510. Transition sleeve; 511. Driven wheel shaft; 512. Driven wheel hub; 513. Support shaft; 514. Shaft end cover; 6. Deck. DETAILED DESCRIPTION

[0042] The specific embodiments of the present invention are described below to facilitate understanding of the present invention by those skilled in the art. However, it should be clear that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the appended claims, these changes are obvious, and all inventions and creations utilizing the concepts of the present invention are protected.

[0043] like Figure 1 and 2 As shown, the jet-type lotus root harvester includes a deck 6, and a plurality of paddle wheel travel devices 5 are provided on both sides of the deck 6. A cutting device 1 is provided on the front side of the deck 6, and the cutting device 1 is used to cut the lotus leaves and stems. A jet device 2 is provided on the front side of the deck 6, and a plurality of swingable nozzle pipe groups 213 are provided on the jet device 2, and the nozzle pipe groups 213 are used to swing and flush the silt around the lotus roots. A roller salvaging device 3 is provided on the rear side of the deck 6, and the roller salvaging device 3 is used to collect lotus leaves and lotus roots. A height adjustment device 4 is provided on the deck 6, and the height adjustment device 4 drives the plurality of nozzle pipe groups 213 to rise and fall. Four floats are provided at the bottom of the deck 6 to provide the overall buoyancy of the lotus root harvester, and a water pump that cooperates with the jet descending device 2 is also correspondingly provided at the bottom of the deck 6.

[0044] like Figure 3 and 4 As shown, the paddle wheel travel device 5 includes a front paddle wheel travel device and a rear paddle wheel travel device. The front paddle wheel travel device is arranged on the front side of the deck 6, and the rear paddle wheel travel device is arranged on the rear side of the deck 6. The two front paddle wheel travel devices provide driving force for the lotus root harvester. Through the cooperation of the two front paddle wheel travel devices, the lotus root harvester can move freely in water or mud. The rear paddle wheel travel device is not provided with power. When the lotus root harvester is traveling on land, the rear paddle wheel travel device can cooperate with the powered front paddle wheel travel device to move, thereby allowing the lotus root harvester to move freely on land.

[0045] The front paddle wheel propulsion device includes a drive motor 501, a driving gear 502, a driven gear 503, a driving shaft 507, a driving wheel hub 508, a paddle plate 509, and a transition sleeve 510. The driving gear 502 is mounted on the driving shaft 507, which is fixed to the output end of the drive motor 501. One end of the driving shaft 507 is mounted on the deck 6, and the other end of the driving shaft 507 is fixed to several driving wheel hubs 508. Several paddle plates 509 are arranged between adjacent driving wheel hubs 508, and a transition sleeve 510 is arranged between several driving wheel hubs 508 to cooperate with the driving shaft 507. Several paddle plates 509 are arranged between the driving wheel hubs 508 to increase the contact area between the front paddle wheel propulsion device and the water, thereby ensuring that the front paddle wheel propulsion device can generate sufficient power. In this embodiment, the driving wheel hubs 508 are preferably arranged in three locations.

[0046] The rear paddle wheel propulsion device includes a driven wheel axle 511, a driven wheel hub 512, and a support shaft 513. One end of the driven wheel axle 511 is mounted on the deck 6, and several driven wheel hubs 512 are fixed to the other end. Several support shafts 513 are interposed between the driven wheel hubs 512. The driving wheel axle 507 and the driven wheel axle 511 are both mounted on the deck 6 via two third bearing blocks 505. Both the driving wheel hub 508 and the driven wheel hub 512 are secured via shaft end caps 514. In this embodiment, two driven wheel hubs 512 are preferably provided.

[0047] like Figure 5 and 6As shown, the drum salvage device 3 includes two support arms 301 and a main transmission shaft 302. The middle parts of the two support arms 301 are correspondingly provided with rotating shaft through holes for installing the main transmission shaft 302. The main transmission shaft 302 is installed in the rotating shaft through holes. The two ends of the main transmission shaft 302 are limited and fixed by axial locking rings. Two transmission end covers 303 are fixed on the main transmission shaft 302. A rotating tube 304 is fixed between the two transmission end covers 303. Several groups of collecting rake nails 305 are fixed on the outside of the rotating tube 304. The collecting rake nails 305 are J-shaped. In this embodiment, four groups of collecting rake nails 305 are provided, and each group of collecting rake nails 305 is provided with 13. One end of each support arm 301 is hinged to the deck 6, and the other end is fixed to a main baffle connecting arm 306. A main baffle 307 is fixed to the bottom of each main baffle connecting arm 306. Side baffles 308 are hingedly fixed to the sides of each main baffle 307. The main baffles 307 and side baffles 308 can be made of metal mesh or metal railings with holes. In normal operation, the side baffles 308 and the main baffle 307 form an obtuse angle, and the side baffles 308 and the main baffle 307 can intercept lotus roots, lotus leaves, and stems, thereby collecting lotus roots, lotus leaves, and stems. One end of the support arm 301 is provided with a front connecting shaft 316. A support arm support seat 315 is provided on the deck 6 to accommodate the connecting shaft 316. A flanged sleeve 317 is installed in the shaft hole, which mates with the main transmission shaft 302. The flanged sleeve 317 reduces friction between the main transmission shaft 302 and the shaft hole. A stopper disc 318 is provided on the side of the main baffle 307, which mounts the side baffle 308. The side baffle 308 is provided with a baffle rotation shaft 319 that mates with the stopper disc 318. The main baffle 307 is hinged to the side baffle 308 via the stopper disc 318 and the baffle rotation shaft 319. The other end of the support arm 301 is provided with a socket for mounting the main baffle connecting arm 306. The main baffle connecting arm 306 is inserted and fixed into the socket. A rear connecting shaft 320 is provided next to the socket, which passes through and secures the main baffle connecting arm 306.

[0048] The main transmission shaft 302 is connected to a main transmission shaft drive mechanism, which drives the main transmission shaft 302 to rotate, thereby grabbing and collecting lotus roots, lotus leaves, and stems via a number of collecting rake spikes 305 on a rotating tube 304. The main transmission shaft drive mechanism includes a salvage motor 309, a coupling 310, a motor transmission shaft 311, a driving sprocket 312, a chain 313, and a driven sprocket 314. The output end of the salvage motor 309 is connected to one end of the motor transmission shaft 311 via the coupling 310. The other end of the motor transmission shaft 311 is connected to the driving sprocket 312, which is connected to the driven sprocket 314 via the chain 313. The driven sprocket 314 is fixed to the main transmission shaft 302. A second motor fixing plate 321 is also included to mount the salvage motor 309. The second motor fixing plate 321 is provided with a motor transmission shaft support 322 for mounting the motor transmission shaft 311. Specifically, the salvage motor 309 rotates through the coupling 310, and the motor drive shaft 311 drives the driven sprocket 314 to rotate through the driving sprocket 312 and the chain 313. The driven sprocket 314 drives the main drive shaft 302 and the rotating tube 304 to rotate, so that the lotus roots, lotus leaves and stems are grabbed by several collecting rake nails 305 rotating backward, and collected in the collecting fence composed of the side baffle 308 and the main baffle 307.

[0049] like Figure 7 and 8 As shown, the cutting device 1 includes an upper sliding tool 101, a lower fixed tool 102 and a first motor fixing plate 115. The lower fixed tool 102 is fixedly connected to the first motor fixing plate 115 by two fixing rods 114. The upper sliding tool 101 and the lower fixed tool 102 are both serrated. Two sliding limit blocks 104 are provided on the lower fixed tool 102. The upper sliding tool 101 is provided with a sliding guide rail 103 that cooperates with the sliding limit blocks 104. The upper sliding tool 101 can slide left and right on the lower fixed tool 102. The first motor fixing plate 115 is provided with a reciprocating drive mechanism that drives the upper sliding tool 101 to swing left and right. The upper sliding tool 101 cooperates with the sliding limit block 104 on the lower fixed tool 102 through the sliding guide rail 103, so that the upper sliding tool 101 can slide horizontally left and right relative to the lower fixed tool 102, thereby utilizing the shear force between the upper sliding tool 101 and the lower fixed tool 102 to reciprocately shear the lotus leaf stems, thereby achieving the cutting of the lotus leaf stems.

[0050] The reciprocating drive mechanism is used to control the horizontal reciprocating motion of the upper sliding cutter 101, thereby generating a shearing action between the upper sliding cutter 101 and the lower fixed cutter 102, thereby cutting the lotus leaf stems. The cut lotus leaf stems float on the water surface and are collected by the drum salvage device 3. The reciprocating drive mechanism includes a cutting motor 105, a driving bevel gear 106, a vertical transmission shaft 107, an upper transmission bevel gear 108, a lower transmission bevel gear 109, a driven bevel gear 110, and a driven shaft 119. The driving bevel gear 106 is fixed to the output end of the cutting motor 105, one end of the vertical transmission shaft 107 is fixed with the upper transmission bevel gear 108, and the other end is fixed with the lower transmission bevel gear 109, the upper transmission bevel gear 108 is meshed with the driving bevel gear 106, the driven bevel gear 110 is fixed to the middle part of the driven shaft 119, and a cam 112 is fixed to one end of the driven shaft 119. A swing frame 111 is provided on the upper sliding tool 101, and a vertical adjustment hole is provided on the swing frame 111. A swing arm that cooperates with the vertical adjustment hole is provided on the cam 112, and the cam 112 drives the swing frame 111 to move horizontally left and right through the swing arm. Specifically, the cutting motor 105 drives the upper transmission bevel gear 108, the vertical transmission shaft 107, the lower transmission bevel gear 109, the driven bevel gear 110, and the driven shaft 119 in sequence through the active bevel gear 106. The driven shaft 119 drives the cam 112 to rotate. The swing arm on the cam 112 cooperates with the swing frame 111 on the swing frame 111, thereby driving the upper sliding tool 101 to reciprocate horizontally. A pad 117 is provided on the rear side of the lower fixed tool 102. A mounting plate 113 is fixed to the pad 117. A driven shaft mounting bracket is provided on the mounting plate 113. A driven shaft mounting end 120 is provided on the driven shaft mounting bracket. A linear bearing 116 is provided on the outside of the vertical transmission shaft 107. A first bearing seat 118 is provided between the vertical transmission shaft 107 and the first motor fixing plate 115.

[0051] like Figure 9 、 11As shown in Figure 12 , the fluidic device 2 includes a vertical screw slide 201, a connecting rod drive assembly 203, a driving connecting rod 204, an upper horizontal sliding bearing assembly 205, a lower horizontal sliding bearing assembly 206, two horizontal optical axes 208, two vertical optical axes 209, and a fluidic main frame 217. The fluidic main frame 217 is fixed to the front side of the deck 6, with the two horizontal optical axes 208 fixed parallel to the fluidic main frame 217. The connecting rod drive assembly 203 is fixedly connected to the lifting slider 202 of the vertical screw slide 201. The connecting rod drive assembly 203 is hingedly connected to the two driving connecting rods 204. The bottoms of the two driving connecting rods 204 are rotatably connected to the two upper horizontal sliding bearing assemblies 205. The two horizontal optical axes 208 are provided with horizontal sliders 207 connected to the upper horizontal sliding bearing assembly 205 and the lower horizontal sliding bearing assembly 206. The horizontal sliders 207 are provided with horizontal guide holes that mate with the horizontal optical axes 208. The upper horizontal sliding bearing assembly 205 and the lower horizontal sliding bearing assembly 206 are both provided with vertical guide holes that cooperate with the vertical optical axis 209. Several horizontal sliders 207 are fixedly connected to the upper horizontal sliding bearing assembly 205 and the lower horizontal sliding bearing assembly 206, and the vertical optical axis 209 can move in the up, down, left and right directions. The jet main frame 217 is equipped with two fixed sliders 210. Each fixed slider 210 is provided with a vertical lifting hole, and a lifting rod 211 is installed in each vertical lifting hole. The bottom of each lifting rod 211 is fixed with a lifting plate 212, which is connected to the height adjustment device 4. The lifting plate 212 is equipped with two nozzle swing plates 214, and each nozzle swing plate 214 is equipped with a nozzle pipe group 213. The bottom of the vertical optical axis 209 is rotatably connected to the top of each nozzle swing plate 214, and the vertical optical axis 209 drives the two nozzle swing plates 214 to swing left and right within the same vertical plane. The nozzle pipe group 213 is fixed to the nozzle swing plate 214 via a U-shaped buckle 216. The rear side of the nozzle swing plate 214 is hinged to the lifting plate 212 via a vertical hinge end 215, so that each nozzle swing plate 214 can swing left and right within the same vertical plane. The vertical screw slide 201 is fixedly connected to the deck 6 through a screw fixing assembly 218. The outside of the jet main frame 217 is provided with a hull second shell 219. The bottom of the vertical optical axis 209 is provided with a lower threaded portion 220, and the vertical optical axis 209 is fixedly connected to the lifting plate 212 through several nuts.Specifically, when the vertical screw slide 201 moves up and down, the lifting slider 202 on the vertical screw slide 201 drives the top of the two driving links 204 to move through the connecting rod drive assembly 203. The bottom of the two driving links 204 drives the two upper horizontal sliding bearing assemblies 205 and lower horizontal sliding bearing assemblies 206 to move on the horizontal optical axis 208. The vertical optical axis 209 moves up and down within the upper horizontal sliding bearing assemblies 205 and lower horizontal sliding bearing assemblies 206. The top of the vertical optical axis 209 drives the nozzle rotating plate 214 to swing left and right, thereby causing the nozzle rotating plate 214 to swing the nozzle pipe assembly 213. When the jet depth of the nozzle pipe assembly 213 needs to be adjusted, the height adjustment device 4 drives the lifting plate 212 up and down. The two lifting rods 211 on the lifting plate 212 can freely extend and retract vertically under the action of the fixed slider 210, thereby adjusting the nozzle pipe assembly 213 to the appropriate jet depth.

[0052] like Figure 10 、 11 As shown in Figure 12, the height adjustment device 4 includes a lifting motor 401, a lifting driving gear 402, a lifting transmission gear 403, a worm 404, a worm wheel 405, a lifting transmission shaft 406, a lifting driven gear 407, and a lifting rack 408. The lifting driving gear 402 is mounted on the output end of the lifting motor 401, the worm 404 is mounted on the deck 6, the lifting transmission gear 403 is fixed to one end of the worm 404 and meshes with the lifting driving gear 402, the worm wheel 405 is fixed to one end of the lifting transmission shaft 406 and meshes with the worm 404, and the other end of the lifting transmission shaft 406 is fixedly connected to the lifting driven gear 407. The bottom of the lifting rack 408 is connected to the nozzle pipe assembly 213, and the lifting rack 408 meshes with the lifting driven gear 407. The worm 404 is mounted on the deck 6 via two second bearing seats 409. Bearing seat pads 410 are provided at the bottom of the bearing seats 409. A support bearing seat 412 for mounting the lifting drive shaft 406 is also provided on the deck 6. An axial locking ring 411 is fixed to the exterior of the lifting drive shaft 406. Specifically, the lifting motor 401, via the lifting driving gear 402, sequentially drives the lifting drive gear 403, the worm 404, the worm gear 405, the lifting drive shaft 406, and the lifting driven gear 407 to rotate. The lifting driven gear 407 drives the lifting rack 408 to rise and fall. The bottom of the lifting rack 408 is fixed to the lifting plate 212, thereby adjusting the jet operation depth of the nozzle pipe group 213 on the lifting plate 212.

[0053] Working process and principle:

[0054] This device consists of a cutting mechanism, a jet mechanism, a drum salvaging mechanism, a height adjustment mechanism, a paddle wheel propulsion mechanism, and a hull. Each mechanism coordinates to harvest lotus roots. During harvesting, the boat-type lotus root harvester enters the water, and a motor drives the paddle wheel, slowly advancing the device. A staff member remotely controls the device from shore. As it advances, the cutting mechanism's blades swing back and forth, slicing through the lotus leaves and stems remaining in the pond. To ensure optimal cutting quality, the height of the cutting mechanism is adjusted using a height adjustment mechanism. After cutting, debris such as lotus leaves and stems floats on the water's surface. As the harvester gradually moves forward, it is gathered by baffles on the left and right sides of the drum salvaging mechanism and brought to the stern. The drum then collects the debris and lifts it into a collection bin. Once the bin is full, the remote control returns to shore to unload the harvester. This process then repeats.

[0055] After the lotus pond is cleaned, the boat-type lotus root harvester reenters the pond. The cutting mechanism stops, and the nozzle flushing mechanism begins. Pumps mounted on either side of the boat pump water, which flows through pipes into the nozzles, jet-digging the lotus roots. The jet mechanism can be adjusted using a height adjustment mechanism, swinging left and right to flush the entire area surrounding the lotus roots. Adjusting the nozzle height using the height adjustment mechanism improves the yield rate. After the high-pressure water jet disperses the silt on the lotus roots, the hollow lotus roots float to the surface. As the boat moves, they are gathered by the left and right baffles at the stern by the roller salvaging mechanism. There, they are salvaged and slide down a specially designed ramp at the stern into the collection bin, completing the collection process.

Claims

1. A jet-type lotus root harvester, characterized in that: It comprises a deck (6), with a plurality of paddle wheel travel devices (5) being provided on both sides of the deck (6); A cutting device (1) is provided on the front side of the deck (6), and the cutting device (1) is used to cut the lotus leaf stems; A jet device (2) is provided on the front side of the deck (6), and a plurality of swingable nozzle pipe groups (213) are provided on the jet device (2). The nozzle pipe groups (213) are used to swing and flush the mud around the lotus root; A roller salvaging device (3) is provided on the rear side of the deck (6), and the roller salvaging device (3) is used to collect lotus leaves, stems and lotus roots; The deck (6) is provided with a height adjustment device (4), and the height adjustment device (4) drives a plurality of nozzle pipe groups (213) to be raised and lowered; The jet device (2) comprises a vertical screw slide (201), a connecting rod drive assembly (203), a driving connecting rod (204), an upper horizontal sliding bearing assembly (205), a lower horizontal sliding bearing assembly (206), two horizontal optical axes (208), two vertical optical axes (209) and a jet main frame (217); the jet main frame (217) is fixed to the front side of the deck (6), and the two horizontal optical axes (208) are fixed to the jet main frame (217) in parallel; the connecting rod drive assembly (203) is connected to the vertical screw slide The lifting slider (202) of the platform (201) is fixedly connected, and the connecting rod driving assembly (203) is hinged with two driving connecting rods (204), and the bottoms of the two driving connecting rods (204) are rotatably connected to two upper horizontal sliding bearing assemblies (205); the two horizontal optical axes (208) are provided with horizontal sliders (207) connected to the upper horizontal sliding bearing assembly (205) and the lower horizontal sliding bearing assembly (206), and the horizontal sliders (207) are provided with horizontal guide holes that match the horizontal optical axis (208); the upper horizontal The sliding bearing assembly (205) and the lower horizontal sliding bearing assembly (206) are both provided with vertical guide holes that cooperate with the vertical optical axis (209); a plurality of the horizontal sliders (207) are fixedly connected to the upper horizontal sliding bearing assembly (205) and the lower horizontal sliding bearing assembly (206); the vertical optical axis (209) moves in the up, down, left, and right directions; two fixed sliders (210) are provided on the jet main body frame (217); each of the fixed sliders (210) is provided with a vertical lifting hole; and a lifting mechanism is provided in each of the vertical lifting holes. Rod (211), a lifting plate (212) is fixed to the bottom of the two lifting rods (211), the lifting plate (212) is connected to the height adjustment device (4), two nozzle rotating plates (214) are provided on the lifting plate (212), and each nozzle rotating plate (214) is provided with a nozzle pipe group (213), the bottom of the vertical optical axis (209) is rotatably connected to the top of the two nozzle rotating plates (214), and the vertical optical axis (209) drives the two nozzle rotating plates (214) to swing left and right in the same vertical plane; The drum salvaging device (3) comprises two support arms (301) and a main transmission shaft (302). The middle parts of the two support arms (301) are correspondingly provided with a rotating shaft through hole for installing the main transmission shaft (302). The main transmission shaft (302) is installed in the rotating shaft through hole. Two transmission end covers (303) are fixed on the main transmission shaft (302). A rotating tube (304) is fixed between the two transmission end covers (303). A plurality of groups of collecting rake nails (305) are fixed on the outside of the rotating tube (304). One end of the two support arms (301) is hinged on the deck (6), and the other end is fixed with a main baffle connecting arm (306). The bottom of the two main baffle connecting arms (306) is fixed with a main baffle (307). The sides of the main baffle (307) are hinged and fixed with side baffles (308). The main transmission shaft (302) is connected to a main transmission shaft driving mechanism.

2. The jet-type lotus root harvester according to claim 1, characterized in that: The cutting device (1) comprises an upper sliding tool (101), a lower fixed tool (102) and a first motor fixing plate (115); the lower fixed tool (102) and the first motor fixing plate (115) are fixedly connected via two fixing rods (114); the upper sliding tool (101) and the lower fixed tool (102) are both serrated; two sliding limit blocks (104) are provided on the lower fixed tool (102); a sliding guide rail (103) cooperating with the sliding limit blocks (104) is provided on the upper sliding tool (101); the upper sliding tool (101) slides left and right on the lower fixed tool (102); and a reciprocating drive mechanism for driving the upper sliding tool (101) to swing left and right is provided on the first motor fixing plate (115).

3. The jet-type lotus root harvester according to claim 2, characterized in that: The reciprocating drive mechanism comprises a cutting motor (105), a driving bevel gear (106), a vertical transmission shaft (107), an upper transmission bevel gear (108), a lower transmission bevel gear (109), a driven bevel gear (110) and a driven shaft (119); the driving bevel gear (106) is fixed to the output end of the cutting motor (105); one end of the vertical transmission shaft (107) is fixed to the upper transmission bevel gear (108) and the other end is fixed to the lower transmission bevel gear (109); the upper transmission bevel gear (108) is fixed to the output end of the cutting motor (105); The wheel (108) is meshed with the driving bevel gear (106), the driven bevel gear (110) is fixed to the middle of the driven shaft (119), a cam (112) is fixed to one end of the driven shaft (119), a swing frame (111) is provided on the upper sliding tool (101), a vertical adjustment hole is provided on the swing frame (111), a swing arm that cooperates with the vertical adjustment hole is provided on the cam (112), and the cam (112) drives the swing frame (111) to move horizontally left and right through the swing arm.

4. The jet-type lotus root harvester according to claim 3, characterized in that: The main transmission shaft drive mechanism comprises a salvage motor (309), a coupling (310), a motor transmission shaft (311), a driving sprocket (312), a chain (313) and a driven sprocket (314); the output end of the salvage motor (309) is connected to one end of the motor transmission shaft (311) via the coupling (310); the other end of the motor transmission shaft (311) is connected to the driving sprocket (312); the driving sprocket (312) and the driven sprocket (314) are connected via the chain (313); and the driven sprocket (314) is fixed to the main transmission shaft (302).

5. The jet-type lotus root harvester according to claim 1, characterized in that: The height adjustment device (4) comprises a lifting motor (401), a lifting driving gear (402), a lifting transmission gear (403), a worm (404), a worm wheel (405), a lifting transmission shaft (406), a lifting driven gear (407) and a lifting rack (408); the lifting driving gear (402) is mounted on the output end of the lifting motor (401), the worm (404) is mounted on the deck (6), the lifting transmission gear (403) is fixed to one end of the worm (404) and meshes with the lifting driving gear (402), the worm wheel (405) is fixed to one end of the lifting transmission shaft (406) and meshes with the worm (404), the other end of the lifting transmission shaft (406) is fixedly connected to the lifting driven gear (407), the bottom of the lifting rack (408) is connected to the nozzle pipe group (213), and the lifting rack (408) meshes with the lifting driven gear (407).

6. The jet-type lotus root harvester according to claim 1, characterized in that: The paddle wheel traveling device (5) comprises a front paddle wheel traveling device and a rear paddle wheel traveling device, the front paddle wheel traveling device is arranged on the front side of the deck (6), and the rear paddle wheel traveling device is arranged on the rear side of the deck (6).

7. The jet-type lotus root harvester according to claim 6, characterized in that: The front paddle wheel travel device comprises a driving motor (501), a driving gear (502), a driven gear (503), a driving wheel shaft (507), a driving wheel hub (508), a paddle plate (509) and a transition sleeve (510), wherein the driving gear (502) is mounted on the driving wheel shaft (507), the driving gear (502) is fixed to the output end of the driving motor (501), one end of the driving wheel shaft (507) is mounted on the deck (6), a plurality of driving wheel hubs (508) are fixed to the other end of the driving wheel shaft (507), a plurality of paddle plates (509) are arranged between adjacent driving wheel hubs (508), and a transition sleeve (510) matched with the driving wheel shaft (507) is arranged between the plurality of driving wheel hubs (508).

8. The jet-type lotus root harvester according to claim 6, characterized in that: The rear paddle wheel traveling device comprises a driven wheel shaft (511), a driven wheel hub (512) and a support shaft (513); one end of the driven wheel shaft (511) is mounted on the deck (6); the other end is fixed with a plurality of driven wheel hubs (512); and a plurality of support shafts (513) are arranged between the plurality of driven wheel hubs (512).

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