An aquatic weed cutting device and method of use thereof

Abstract

The application relates to the technical field of water grass harvesting, and discloses a water grass cutting device and a use method thereof. The water grass cutting device comprises a supporting frame, a cutting piece, a cutting driving mechanism and an extrusion auxiliary mechanism. The cutting piece is in sliding connection with the supporting frame. The cutting driving mechanism drives the cutting piece to slide relative to the supporting frame. The extrusion auxiliary mechanism comprises a guide roller, a compression roller and an intermittent extrusion assembly. The guide roller is in rotary connection with the supporting frame. The guide roller is arranged above the cutting piece. The compression roller is arranged above the guide roller. A passing space for water grass is formed between the compression roller and the guide roller. The intermittent extrusion assembly drives the compression roller to move close to or away from the guide roller to change the size of the passing space, so that the cutting effect of the water grass is improved.

Description

Technical Field

[0001] This invention relates to the field of aquatic plant harvesting technology, and in particular to an aquatic plant cutting device and its usage method. Background Technology

[0002] Aquatic plants are herbaceous plants that can grow in water. Their function is to continuously inject oxygen into the water under sunlight, providing oxygen for fish and microorganisms living in the water. They are an indispensable part of the aquatic ecosystem. However, in recent years, many waters have experienced the phenomenon of rampant growth of aquatic plants. If not dealt with in time, it will damage the ecological balance of the entire water area. In severe cases, it can lead to unfair ecological competition and the extinction of vulnerable species. Therefore, it is necessary to take artificial intervention measures.

[0003] Existing swing-arm mowing devices include a power transmission component and a saw blade. The saw blade is connected to the bottom of the power transmission component. During use, the saw blade is placed horizontally in the water, with its orientation perpendicular to the direction of the boat's movement. The power transmission component drives the saw blade to move back and forth in a direction perpendicular to the boat's movement, thus cutting the aquatic plants in coordination with the boat's movement. However, in actual use, aquatic plants have a certain degree of toughness, making them prone to detaching from the saw blade's teeth, affecting the cutting effect. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide an aquatic plant cutting device to improve the cutting effect of aquatic plants.

[0005] To achieve the first objective of this invention, the present invention provides the following technical solution:

[0006] A weed cutting device includes a support frame, on which are mounted a...

[0007] A cutting component, which is slidably connected to the support frame;

[0008] A cutting drive mechanism drives the cutting workpiece to slide relative to the support frame; an extrusion auxiliary mechanism includes...

[0009] A guide roller is rotatably connected to the support frame, and the guide roller is positioned above the cutting piece.

[0010] A pressure roller is positioned above the guide roller, and a passageway for water plants is formed between the pressure roller and the guide roller.

[0011] An intermittent extrusion assembly drives the pressure roller closer to or further away from the guide roller to change the size of the passage space.

[0012] Furthermore, the intermittent extrusion assembly includes an extrusion support, a crank, a connecting rod, and a slider. The extrusion support is fixedly connected to the support frame, and a groove is formed on the extrusion support. The slider is slidably connected to the groove and fixedly connected to the pressure roller. The crank includes a power input end and a transmission end. The power input end is rotatably connected to the support frame. One end of the connecting rod is rotatably connected to the transmission end, and the other end of the connecting rod is rotatably connected to the slider. When the crank rotates, the crank drives the slider to slide along the length direction of the groove through the connecting rod, so that the pressure roller intermittently approaches or moves away from the guide roller.

[0013] Furthermore, the cutting drive mechanism includes a reciprocating transmission assembly and a synchronization assembly. The reciprocating transmission assembly includes two transmission gears and a rack. The transmission gears are rotatably connected to the support frame, and the rack is slidably connected to the support frame. The rack is disposed between the two transmission gears, and the transmission gears are disposed on both sides of the rack. The synchronization assembly drives the two transmission gears to alternately mesh with the rack to push the rack to reciprocate.

[0014] Furthermore, the synchronization component includes a driving gear and two driven gears. The driving gear is rotatably connected to the support frame, and the driven gears are coaxially fixedly connected to the transmission gears. The two driven gears mesh with the driving gear respectively. The driving gear is provided with a power source to drive the driving gear to rotate. When the driving gear rotates, the two driven gears rotate synchronously to drive the two transmission gears to rotate synchronously.

[0015] Furthermore, a linkage assembly is provided between the crank and the drive gear. The linkage assembly includes a worm, a worm wheel, and a transmission shaft. The worm is rotatably connected to the support frame and coaxially fixedly connected to the drive gear. The transmission shaft is rotatably connected to the support frame, and the worm wheel is coaxially fixedly connected to the transmission shaft. The worm wheel meshes with the worm. The power input end of the crank is fixedly connected to the transmission shaft, so that when the drive gear rotates, it drives the crank to rotate through the worm wheel and the worm.

[0016] Furthermore, a drive sprocket is coaxially fixedly connected to the transmission shaft, a driven sprocket is coaxially fixedly connected to the guide roller, and a transmission chain is provided between the drive sprocket and the driven sprocket.

[0017] Furthermore, the support frame is provided with several transmission rollers, the end of the rack is fixedly connected to a traction rope, the other end of the traction rope is fixedly connected to the cutting component, the transmission rollers are for the traction rope to be wound so that the rack drives the cutting component to reciprocate through the traction rope, and a tension spring is provided at the end of the cutting component away from the traction rope, the tension spring is used to drive the cutting component to reset.

[0018] Furthermore, the support frame includes a limiting support portion formed in the middle of the support frame and used for connection with the hull, and the number of the cutting piece, guide roller and pressure roller is set to two and located on both sides of the limiting support portion.

[0019] To achieve the second objective of this invention, the present invention provides the following technical solution:

[0020] A method of using an aquatic plant cutting device is provided. The device includes a support frame, on which a cutting component, a cutting drive mechanism, and a compression auxiliary mechanism are mounted. The compression auxiliary mechanism includes a guide roller, a pressure roller, and an intermittent compression assembly. The method of using the aquatic plant cutting device includes:

[0021] Aquatic plant guiding steps: The guide roller rotates to guide the aquatic plants to the upper part of the guide roller;

[0022] Clamping step: The intermittent extrusion assembly drives the pressure roller to intermittently approach the guide roller to squeeze the water plants;

[0023] Cutting step: The cutting drive mechanism drives the cutting piece to reciprocate to cut the aquatic plants;

[0024] The aquatic plant guiding step, clamping step, and cutting step are performed simultaneously.

[0025] The beneficial effects of this invention are:

[0026] 1. The present invention uses the setting of the extrusion auxiliary component to guide the movement direction of the water plants and initially fix them. Then, the intermittent extrusion component intermittently drives the pressure roller to extrude the water plants on the guide roller. At this time, as the boat moves, the water plants will be straightened, which makes it easier for the cutting component to cut them, reduces the influence of the toughness of the water plants on the cutting effect, and the cutting effect is good.

[0027] 2. The pressure roller, guide roller, and cutting parts all use the same power source. The same power source can realize three different power outputs: linear reciprocating motion, cyclic rotation, and reciprocating lifting. This reduces the number of power sources, the overall weight of the device, and the number of electrical appliances, thereby extending the single cutting time of the aquatic plant cutting device. Attached Figure Description

[0028] Figure 1This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the cutting drive structure in this invention;

[0030] Figure 3 This is a schematic diagram of the extrusion auxiliary mechanism in this invention;

[0031] Figure 4 This is a schematic diagram of the intermittent extrusion assembly in this invention.

[0032] Figure label:

[0033] 1. Support frame; 101. Limiting support part; 102. Cutting mounting part; 11. Extrusion support part; 12. Transmission roller; 2. Cutting part; 21. Traction rope; 22. Tension spring; 3. Driving gear; 31. Driven gear; 311. Transmission gear; 32. Rack; 33. Worm; 4. Transmission shaft; 41. Worm wheel; 42. Driving sprocket; 43. Crank; 5. Guide roller; 51. Driven sprocket; 511. Chain; 6. Pressure roller; 61. Slider; 62. Connecting rod. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0037] like Figure 1As shown, a waterweed cutting device according to this embodiment includes a support frame 1, on which a cutting component 2, a cutting drive mechanism, and a squeezing auxiliary mechanism are provided.

[0038] The support frame 1 includes a limiting support portion 101, which is formed in the middle of the support frame 1 and is used to connect with the hull. The support portion is shaped like a rectangular frame to facilitate placement on the hull. Cutting mounting portions 102 are formed on both sides of the limiting support portion 101, and the cutting mounting portions 102 are suspended outside the hull for mounting the cutting component 2, the pressure roller 6, and the guide roller 5. Two cutting components 2, two guide rollers 5, and two pressure rollers 6 are located on either side of the limiting support portion 101. Furthermore, the overall shape of the support frame 1 is a frame structure, with a drive structure mounted on the upper part of the support frame 1, and the cutting component 2, the pressure roller 6, and the guide roller 5 mounted on the lower part of the support portion.

[0039] The cutting component 2 is slidably connected to the support frame 1. Specifically, the cutting component 2 can be set as a saw blade. The two cutting components 2 move in the same direction, and the saw teeth of the saw blade are set towards the side away from the hull. That is to say, when the saw blade moves away from the hull, the saw teeth move relative to the seaweed to perform the cutting operation, and then it is reset under the action of the return spring. The two cutting components 2 cut alternately.

[0040] Please see Figure 2The cutting drive mechanism drives the cutting piece 2 to slide relative to the support frame 1. The cutting drive mechanism includes a reciprocating transmission component and a synchronization component. The reciprocating transmission component includes two transmission gears 311 and a rack 32. The transmission gears 311 are rotatably connected to the support frame 1, and the rack 32 is slidably connected to the support frame 1. The rack 32 is disposed between the two transmission gears 311, and the transmission gears 311 are disposed on both sides of the rack 32. The synchronization component drives the two transmission gears 311 to alternately mesh with the rack 32 to drive the rack 32 to reciprocate. In this embodiment, to achieve the alternating meshing of the two transmission gears 311 with the rack 32, specifically, both transmission gears 311 are partial gears, that is, only a partial position is provided with teeth in the circumferential direction of the transmission gear 311. When the gear teeth mesh with the rack 32, the corresponding transmission gear 311 drives the rack 32 to move. Specifically, the distance and period of the rack 32's movement can be adjusted by the central angle of the tooth distribution, and the central angle of the tooth distribution does not exceed 160 degrees. The synchronization component includes a driving gear 3 and two driven gears 31. The driving gear 3 is rotatably connected to the support frame 1. The driven gears 31 and transmission gears 311 correspond one-to-one and are coaxially fixedly connected. The two driven gears 31 mesh with the driving gear 3. The driving gear 3 is equipped with a power source to drive its rotation. When the driving gear 3 rotates, the two driven gears 31 rotate synchronously to drive the two transmission gears 311 to rotate synchronously. In this embodiment, the power source on the driving gear 3 drives it to rotate continuously. The transmission gears 311 and the rack 32 enable the rack 32 to reciprocate, facilitating the continuous cutting of aquatic plants by the two cutting pieces 2.

[0041] The support frame 1 is equipped with several transmission rollers 12. A traction rope 21 is fixedly connected to the end of the rack 32. In this embodiment, there are two sets of traction ropes 21, each set corresponding to one end of the rack 32. The other end of the traction rope 21 is fixedly connected to the cutting piece 2. The transmission rollers 12 are used to wind the traction rope 21 so that the rack 32 drives the cutting piece 2 to reciprocate through the traction rope 21. A tension spring 22 is provided at the end of the cutting piece 2 away from the traction rope 21. The tension spring 22 is used to drive the cutting piece 2 to return to its original position.

[0042] Please see Figure 3The extrusion auxiliary mechanism includes a guide roller 5, a pressure roller 6, and an intermittent extrusion assembly. The guide roller 5 is rotatably connected to the support frame 1 and is positioned above the cutting component 2. The guide roller 5, through its own rotation and in conjunction with the movement of the hull, guides the aquatic plants to its upper part. In this embodiment, the guide roller 5 primarily serves to guide the aquatic plants, directing them towards the direction of rotation of the guide roller 5. The number of guide rollers 5 corresponds to the number of cutting components 2, both being two, located on either side of the limiting support part 101. The pressure roller 6 is positioned above the guide roller 5, forming a passage space between the pressure roller 6 and the guide roller 5 for the aquatic plants to pass through. The pressure roller 6 intermittently extrudes the passage space, thus intermittently clamping the aquatic plants. This, combined with the cutting motion of the cutting component 2, achieves the cutting of the aquatic plants, avoiding cutting failure caused by the inherent toughness of the aquatic plants themselves.

[0043] Please see Figure 4 The intermittent extrusion assembly drives the pressure roller 6 to move closer to or away from the guide roller 5 to change the size of the passage space. The intermittent extrusion assembly includes an extrusion support 11, a crank 43, a connecting rod 62, and a slider 61. The extrusion support 11 is fixedly connected to the support frame 1, and a groove is provided on the extrusion support 11. The slider 61 is slidably connected to the groove and is fixedly connected to the pressure roller 6. The crank 43 includes a power input end and a transmission end. The power input end is rotatably connected to the support frame 1. One end of the connecting rod 62 is rotatably connected to the transmission end, and the other end of the connecting rod 62 is rotatably connected to the slider 61. When the crank 43 rotates, the crank 43 drives the slider 61 to slide along the length of the groove through the connecting rod 62, so that the pressure roller 6 intermittently approaches or moves away from the guide roller 5.

[0044] A linkage assembly is provided between crank 43 and drive gear 3. The linkage assembly includes worm 33, worm wheel 41, and transmission shaft 4. Worm 33 is rotatably connected to support frame 1 and coaxially fixedly connected to drive gear 3. Transmission shaft 4 is rotatably connected to support frame 1. Worm wheel 41 is coaxially fixedly connected to transmission shaft 4 and meshes with worm 33. The power input end of crank 43 is fixedly connected to transmission shaft 4, so that when drive gear 3 rotates, it drives crank 43 to rotate through worm wheel 41 and worm 33. A single power source drives the intermittent extrusion assembly, reducing the number of driving components and making full use of a single power source.

[0045] Furthermore, two drive sprockets 42 are coaxially fixedly connected to the transmission shaft 4, and are located at both ends of the transmission shaft 4. A driven sprocket 51 is coaxially fixedly connected to the guide roller 5, and a transmission chain 511 is provided between the drive sprockets 42 and the driven sprockets 51. This design utilizes a single power source to achieve three different power outputs: linear reciprocating motion, cyclic rotation, and reciprocating lifting. This reduces the number of power sources, decreases the overall weight of the device, and reduces the number of electrical components, thus extending the single-cutting time of the aquatic plant cutting device. Simultaneously, the guide roller 5 serves a guiding function for the aquatic plants. The load on the guide roller 5 is relatively small, and the pressure roller 6 intermittently squeezes through the space. The squeezing contact time between the guide roller 5 and the pressure roller 6 does not affect the transmission process and can be achieved with a small power input. Therefore, the above structure has strong reliability.

[0046] Furthermore, a method of using an aquatic plant cutting device is provided, comprising a support frame 1, a cutting element 2 disposed on the support frame 1, a cutting drive mechanism, and a compression auxiliary mechanism. The compression auxiliary mechanism includes a guide roller 5, a pressure roller 6, and an intermittent compression assembly. The method of using the aquatic plant cutting device includes:

[0047] Aquatic plant guiding steps: The guide roller 5 rotates to guide the aquatic plants to the upper part of the guide roller 5;

[0048] Clamping step: The intermittent extrusion assembly drives the pressure roller 6 to intermittently approach the guide roller 5 to squeeze the water plants;

[0049] Cutting steps: The cutting drive mechanism drives the cutting piece 2 to reciprocate to cut the aquatic plants;

[0050] The aquatic plant guiding step, clamping step, and cutting step are performed simultaneously.

[0051] Working principle:

[0052] When cutting, the support frame 1 is first installed on the hull via the limiting support part 101, and the cutting mounting part 102 is placed outside the hull. The cutting needs to be carried out while the hull is moving. The power source is started, and the power source drives the drive gear 3 to rotate. The drive gear 3 drives two meshing driven gears 31 to rotate in the same direction. The two driven gears 31 drive the corresponding transmission gears 311 to rotate. The two transmission gears 311 alternately mesh with the rack 32, thereby driving the rack 32 to move back and forth in the horizontal direction. At this time, the cutting piece 2 is pulled by the rack 32 through the traction rope 21, thereby causing the cutting piece 2 to move laterally to cut the aquatic plants.

[0053] When the power source is started, the power source drives the worm 33 to rotate, the worm 33 drives the worm wheel 41 that meshes with it to rotate, and the worm wheel 41 drives the transmission shaft 4 to rotate synchronously. At this time, the guide roller 5 rotates with the cooperation of the driving sprocket 42, the driven sprocket 51 and the chain 511, guiding the tip of the aquatic plant to the top of the guide roller 5.

[0054] When the power source is started, the power source drives the worm gear 33 to rotate, which drives the rotating shaft to rotate through the worm wheel 41. The rotating shaft drives the crank 43 to rotate, which drives the pressure roller 6 to move up and down reciprocally through the connecting rod 62 and the slider 61. When the pressure roller 6 moves to the lowest position, the pressure roller 6 and the guide roller 5 provide clamping force to the aquatic plants, thereby tightening the aquatic plants and making it easier for the cutting piece 2 to cut them.

[0055] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A waterweed cutting device, characterized in that: Includes a support frame (1), on which are provided... A cutting component (2) is slidably connected to the support frame (1); A cutting drive mechanism drives the cutting piece (2) to slide relative to the support frame (1); Extrusion auxiliary mechanism, the extrusion auxiliary mechanism includes A guide roller (5) is rotatably connected to the support frame (1), and the guide roller (5) is positioned above the cutting piece (2). A pressure roller (6) is positioned above the guide roller (5), and a passage space for water plants to pass through is formed between the pressure roller (6) and the guide roller (5). An intermittent extrusion assembly drives the pressure roller (6) to move closer to or further away from the guide roller (5) to change the size of the passage space; The intermittent extrusion assembly includes an extrusion support (11), a crank (43), a connecting rod (62), and a slider (61). The extrusion support (11) is fixedly connected to the support frame (1). The extrusion support (11) has a groove. The slider (61) is slidably connected to the groove. The slider (61) is fixedly connected to the pressure roller (6). The crank (43) includes a power input end and a transmission end. The power input end is rotatably connected to the support frame (1). One end of the connecting rod (62) is rotatably connected to the transmission end. The other end of the connecting rod (62) is rotatably connected to the slider (61). When the crank (43) rotates, the crank (43) drives the slider (61) to slide along the length of the groove through the connecting rod (62) so that the pressure roller (6) intermittently approaches or moves away from the guide roller (5).

2. The aquatic plant cutting device according to claim 1, characterized in that: The cutting drive mechanism includes a reciprocating transmission component and a synchronization component. The reciprocating transmission component includes two transmission gears (311) and a rack (32). The transmission gears (311) are rotatably connected to the support frame (1), and the rack (32) is slidably connected to the support frame (1). The rack (32) is disposed between the two transmission gears (311) and the transmission gears (311) are disposed on both sides of the rack (32). The synchronization component drives the two transmission gears (311) to alternately mesh with the rack (32) to push the rack (32) to reciprocate.

3. The aquatic plant cutting device according to claim 2, characterized in that: The synchronization component includes a driving gear (3) and two driven gears (31). The driving gear (3) and the support frame (1) are rotatably connected. The driven gears (31) and the transmission gears (311) correspond one-to-one and are coaxially fixedly connected. The two driven gears (31) mesh with the driving gear (3) respectively. The driving gear (3) is provided with a power source to drive the driving gear (3) to rotate. When the driving gear (3) rotates, the two driven gears (31) rotate synchronously to drive the two transmission gears (311) to rotate synchronously.

4. The aquatic plant cutting device according to claim 3, characterized in that: A linkage assembly is provided between the crank (43) and the drive gear (3). The linkage assembly includes a worm (33), a worm wheel (41), and a transmission shaft (4). The worm (33) is rotatably connected to the support frame (1), and the worm (33) and the drive gear (3) are coaxially fixedly connected. The transmission shaft (4) is rotatably connected to the support frame (1). The worm wheel (41) and the transmission shaft (4) are coaxially fixedly connected. The worm wheel (41) and the worm (33) mesh with each other. The power input end of the crank (43) is fixedly connected to the transmission shaft (4), so that when the drive gear (3) rotates, the crank (43) is driven to rotate through the worm wheel (41) and the worm (33).

5. The aquatic plant cutting device according to claim 4, characterized in that: A drive sprocket (42) is coaxially fixedly connected to the drive shaft (4), and a driven sprocket (51) is coaxially fixedly connected to the guide roller (5). A drive chain (511) is provided between the drive sprocket (42) and the driven sprocket (51).

6. The aquatic plant cutting device according to claim 2, characterized in that: The support frame (1) is provided with several transmission rollers (12). The end of the rack (32) is fixedly connected to a traction rope (21). The other end of the traction rope (21) is fixedly connected to the cutting part (2). The transmission rollers (12) are used for the traction rope (21) to be wound so that the rack (32) drives the cutting part (2) to reciprocate through the traction rope (21). A tension spring (22) is provided at the end of the cutting part (2) away from the traction rope (21). The tension spring (22) is used to drive the cutting part (2) to reset.

7. The aquatic plant cutting device according to claim 1, characterized in that: The support frame (1) includes a limiting support part (101), which is formed in the middle of the support frame and is used to connect with the hull. The number of the cutting piece, guide roller (5) and pressure roller (6) is set to two and located on both sides of the limiting support part (101).

8. A method of using an aquatic plant cutting device, employing the aquatic plant cutting device as described in any one of claims 1-7, characterized in that: A waterweed cutting device is provided, including a support frame (1), on which a cutting element (2) is disposed, a cutting drive mechanism, and a squeezing auxiliary mechanism. The squeezing auxiliary mechanism includes a guide roller (5), a pressure roller (6), and an intermittent squeezing assembly. The method of using the waterweed cutting device includes: Aquatic plant guiding steps: The guide roller (5) rotates to guide the aquatic plants to the upper part of the guide roller (5); Clamping step: The intermittent extrusion assembly drives the pressure roller (6) to intermittently approach the guide roller (5) to squeeze the water plants; Cutting steps: The cutting drive mechanism drives the cutting piece (2) to reciprocate to cut the aquatic plants; The aquatic plant guiding step, clamping step, and cutting step are performed simultaneously.

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