A furrow opener

Abstract

The utility model belongs to the technical field of agricultural machinery, especially is a furrow opener, including the suspension piece and the traction frame, this furrow opener still includes: frame, is fixed in one side of the traction frame, the reduction gearbox is fixed on the upper surface of the frame, and the lower end is penetrated in the lower surface of the frame, the soil breaking mechanism is set up in the lower surface of the frame, including two cutterheads, the side surface of two cutterheads is all fixedly connected with a plurality of furrow cutters at equal intervals. The utility model, furrow cutter adopts nanometer composite ceramic material, the frame adopts a plurality of high -performance composite materials, compared with traditional steel and cast iron, has improved wear resistance, corrosion resistance and service life significantly, has reduced maintenance cost, and lightweight design has reduced power consumption, has promoted the mobility in complex terrain.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery technology, and specifically relates to a trenching machine. Background Technology

[0002] Existing agricultural ditching machines have many technical limitations and are difficult to adapt to the needs of modern agricultural development:

[0003] In terms of materials and performance, the core components rely on traditional materials such as ordinary alloy steel and cast iron, leading to a series of problems: the trenching blades suffer severe wear from sand and gravel in the soil, with an average operating cycle of less than 50 hours, resulting in a short lifespan; the machine frame is prone to rust in the damp environment of the field and under the corrosive effects of pesticides, leading to high maintenance costs; the transmission gears rely on grease to maintain operation, which not only increases maintenance costs but may also cause soil pollution due to leakage. At the same time, the steel structure makes the equipment too heavy, increasing the tractor's power consumption and limiting its mobility in complex terrains such as hills and wetlands.

[0004] In terms of operation and precision, mainstream trenchers are mainly operated manually or semi-automatically. Adjustments to parameters such as trenching depth and row spacing rely on the operator's experience and judgment, and the accuracy of the operation is significantly affected by human factors, with errors often exceeding 10 centimeters. More importantly, traditional trenchers have not established a collaborative mechanism with navigation systems and farmland digital models, making it difficult to integrate into modern precision planting systems and meet the needs of efficient operations in large-scale farms.

[0005] In terms of environmental protection and adaptability, traditional transmission systems suffer from problems such as grease leakage and rusting of metal parts, which are significantly different from the "zero-pollution operation" requirements of green agriculture. With the promotion of smart agriculture technologies, farmland operations are transforming towards "unmanned, precise, and green": large-scale farms require automated equipment to operate 24 / 7 to improve efficiency, ecological agriculture requires minimizing mechanical interference with soil and crops, and facility agriculture places higher demands on the miniaturization and modularization of equipment. Existing ditching machine technology systems can no longer cover these new scenarios, necessitating breakthroughs through material innovation and intelligent system integration to build a new generation of efficient, environmentally friendly, and adaptive ditching operation solutions. Utility Model Content

[0006] To address the problems mentioned in the background section, this invention provides a trenching machine with long-lasting, corrosion-resistant trenching blades that can operate in conjunction with a navigation system and a digital farmland model.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a trenching machine, including a suspension component and a traction frame, the trenching machine further including:

[0008] The frame is fixed to one side of the traction frame;

[0009] The gearbox is fixed to the upper surface of the frame, and its lower end extends through the lower surface of the frame.

[0010] The soil-breaking mechanism is set on the lower surface of the frame and includes two cutter discs. Multiple trenching blades are fixedly connected at equal intervals on one side surface of each of the two cutter discs.

[0011] The two cutter heads have their opposing surfaces fixed at both ends of the gearbox output shaft. The gearbox drives the cutter heads to rotate, thereby causing multiple grooving blades to rotate.

[0012] As a preferred embodiment of the trenching machine of this utility model, the soil breaking mechanism further includes:

[0013] There are two cutter head covers, which are fixed to the outer surface of the frame;

[0014] The two cutter head covers are mirrored.

[0015] In a preferred embodiment of the trenching machine of this utility model, a navigation component is fixedly connected to the upper surface of the frame.

[0016] As a preferred embodiment of the trenching machine of this utility model, a multispectral camera is also fixedly connected to the upper surface of the frame.

[0017] As a preferred embodiment of the trenching machine of this utility model, the edge of the cutter head is provided with multiple blade mounting seats, each blade mounting seat has 4 stepped threaded holes on its surface, and the back of the trenching blade is provided with a through countersunk hole at the corresponding position. The blade is fixed by bolts passing through the countersunk holes and engaging with the stepped threaded holes, and a disc spring washer is provided between the bolts and the countersunk holes.

[0018] As a preferred embodiment of the trenching machine of this utility model, the trenching blade is composed of the following raw materials in parts by weight: 130-160 parts of nano alumina powder, 70-90 parts of nano zirconium oxide powder, 8-12 parts of nano titanium boride powder, 25-35 parts of aluminum sol and 220-280 parts of isopropanol.

[0019] As a preferred embodiment of the trenching machine of this utility model, the preparation process of the trenching blade is as follows:

[0020] Accurately weigh 130–160 parts of nano alumina powder, 70–90 parts of nano zirconium oxide powder, 8–12 parts of nano titanium boride powder, 25–35 parts of aluminum sol and 220–280 parts of isopropanol, and set aside for later use.

[0021] A suspension was prepared by mixing nano-alumina powder, nano-zirconia powder, and isopropanol at a speed of 600-700 r / min for 30-40 min.

[0022] Nano-titanium boride powder and aluminum sol were added to the suspension, and the stirring speed was adjusted to 500-600 r / min and stirred for 120-150 min to prepare a mixed slurry.

[0023] Pour the mixed slurry into a special mold for trenching blades, and perform two degassing treatments under a vacuum of 0.07 MPa, each for 20 minutes with a 10-minute interval, and then dry it in a vacuum oven at 85-90℃ for 20-22 hours.

[0024] The dried green body was placed in an atmosphere sintering furnace. First, under a mixed atmosphere of nitrogen and oxygen (nitrogen to oxygen volume ratio 3:1), the temperature was increased to 550℃ at 6℃ / min and held for 2.5h. Then, the atmosphere was switched to pure nitrogen and the temperature was increased to 1700-1750℃ at 10℃ / min and held for 4-5h. After that, the temperature was first reduced to 1200℃ at 5℃ / min and then reduced to room temperature at 3℃ / min to obtain a nano-composite ceramic green body.

[0025] The ceramic blank is ground to form a grooved blade shape, thus obtaining the grooved blade.

[0026] As a preferred embodiment of the trenching machine of this utility model, the frame is composed of the following raw materials in parts by weight: 85-105 parts of pretreated polyethylene fiber cloth, 75-85 parts of seaweed fiber felt, 50-60 parts of cashew nut shell oil modified epoxy resin, 12-18 parts of graphene nanosheets, 6-10 parts of nano hydroxyapatite and 5-8 parts of liquid crystal polymer microspheres.

[0027] The manufacturing process of the frame is as follows:

[0028] Graphene nanosheets and nano-hydroxyapatite were added to cashew nut shell oil-modified epoxy resin and stirred at 70-80℃ with planetary stirring at 1000 r / min revolution and 600 r / min rotation for 40-50 min. Then, liquid crystal polymer microspheres were added and stirring was continued for 15-20 min to prepare a multifunctional composite resin.

[0029] Pretreated polyethylene fiber cloth is treated in an argon atmosphere with a power of 200W for 8-10 minutes. Then, it is alternately laid into the frame mold with seaweed fiber felt in a 3:2 layer ratio. The surface of each layer of fiber material is coated with multifunctional composite resin by electrostatic spraying, and the coating thickness is controlled to be 0.1-0.2mm.

[0030] After the layup is completed, carbon dioxide gas is introduced into the mold to 0.15 MPa, and the mold is pressurized and cured at 140-150°C for 90-100 minutes. Then the pressure is released and nitrogen gas is introduced to cool the mold to below 60°C.

[0031] After removing the blank, the connecting holes are trimmed using laser engraving technology to prepare the frame.

[0032] As a preferred embodiment of the trenching machine of this utility model, the preparation process of the pretreated polyethylene fiber cloth is as follows:

[0033] Prepare a mixed solution by mixing Tween 80 with deionized water at a volume ratio of 1:5.

[0034] The polyethylene fiber cloth is immersed in the mixed solution and stirred in a constant temperature water bath at 40-50℃ for 15-20 minutes. Then it is rinsed with deionized water 3-4 times to prepare the polyethylene fiber cloth substrate.

[0035] The polyethylene fiber cloth substrate was completely immersed in a 2% (v / v) aqueous solution of silane coupling agent KH-550 and kept at a constant temperature of 50-60°C for 40-50 minutes, with the substrate being gently turned over every 15 minutes to obtain the modified substrate.

[0036] After drying, the modified substrate is transferred to a hot air setting oven at 110-120°C and heat-set under a micro pressure of 0.05MPa for 20-25 minutes.

[0037] Then, according to the size requirements of the frame mold, it is cut into the corresponding specifications to obtain the pretreated polyethylene fiber cloth.

[0038] As a preferred embodiment of the trenching machine of this utility model, the preparation process of the cashew nut shell oil modified epoxy resin is as follows:

[0039] Add bisphenol A type epoxy resin to a reaction vessel, turn on the stirring speed to 300-400 r / min, and raise the temperature of the reaction vessel to 80-90℃. After the bisphenol A type epoxy resin is completely melted, add 10% by weight of butyl glycidyl ether of the bisphenol A type epoxy resin and stir for 15-20 min to prepare a mixed base material.

[0040] The base material and cashew nut shell oil were mixed at a mass ratio of 10:1. Then, 2% by volume of triethanolamine was added to the mixture. The temperature was raised to 110-120°C and maintained for 2-2.5 hours. The heating device was then turned off, and cooling water was introduced to lower the material temperature to 50-60°C. The mixture was then filtered through a 100-mesh filter to obtain cashew nut shell oil modified epoxy resin.

[0041] Compared with the prior art, the beneficial effects of this utility model are:

[0042] 1. In this utility model, the trenching blade is made of nano-composite ceramic material, and the frame is made of a variety of high-performance composite materials. Compared with traditional steel and cast iron, it significantly improves wear resistance, corrosion resistance and service life, reduces maintenance costs, and the lightweight design reduces power consumption and improves mobility in complex terrain.

[0043] 2. This utility model integrates navigation components and a multispectral camera, realizing the precision and automation of ditching operations, eliminating reliance on manual experience, significantly reducing operational errors, and enabling collaboration with navigation systems and farmland digital models to reduce interference with soil and crops. Attached Figure Description

[0044] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0045] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0046] Figure 2 This is a top view of the structure of this utility model;

[0047] Figure 3 This is a schematic diagram of the cutter head structure in this utility model;

[0048] Figure 4 This is a bottom-view structural diagram of the present invention;

[0049] Figure 5 This is a partial structural schematic diagram of the present invention;

[0050] Figure 6 This is a partial structural schematic diagram of the present invention;

[0051] In the picture:

[0052] 1. Suspension components; 2. Traction frame; 3. Cutter head; 4. Cutter head cover; 5. Gearbox; 6. Frame; 7. Navigation components; 8. Multispectral camera; 9. Trenching blades. Detailed Implementation

[0053] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0054] Example 1:

[0055] like Figures 1-6 As shown, a trenching machine includes a suspension component 1 and a traction frame 2. The trenching machine also includes:

[0056] The frame 6 is fixed to one side of the traction frame 2;

[0057] The gearbox 5 is fixed to the upper surface of the frame 6, and its lower end extends through the lower surface of the frame 6;

[0058] The soil breaking mechanism is set on the lower surface of the frame 6 and includes two cutter discs 3. Multiple trenching blades 9 are fixedly connected at equal intervals on one side surface of the two cutter discs 3.

[0059] The opposing surfaces of the two cutter discs 3 are fixed at both ends of the output shaft of the gearbox 5. The gearbox 5 drives the cutter discs 3 to rotate, thereby causing multiple grooving blades 9 to rotate.

[0060] As examples, in this embodiment, the soil-breaking mechanism includes: a cutterhead 3, a cutterhead cover 4, and trenching blades 9.

[0061] The cutter head 3, which serves as a transmission support, is fixed to both ends of the output shaft of the gearbox 5 by internal hex bolts, thus transmitting the kinetic energy transmitted by the gearbox 5.

[0062] The cutter head cover 4, which serves a protective function, is fixed to both sides of the frame 6 with hex bolts, covering the top of the two cutter heads 3 respectively to prevent soil from splashing.

[0063] Among them, the trenching blade 9, which plays the role of breaking and pushing soil, is fixed to one side surface of the cutter head 3 by bolts and countersunk holes, and rotates with the cutter head 3 to break and push the soil to both sides.

[0064] In addition, it should be noted that the gearbox 5 is existing technology and is a common device in daily life. Specific models can be selected according to needs, so we will not go into too much detail here.

[0065] In this embodiment: the suspension component 1 connects and fixes the trencher to the traction equipment, providing support for the entire machine and ensuring a stable connection during operation. The traction frame 2 transmits the power of the traction equipment, driving the entire machine to move. Its rigid structure ensures efficient power transmission and is not easily deformed. The frame 6 carries components such as the reduction gearbox 5 and the cutter head 3. The reduction gearbox 5 reduces and increases the torque of the input power before transmitting it to the cutter head 3. The modular planetary gear structure and diamond-like carbon coated gear set improve transmission efficiency and wear resistance. The magnetorheological fluid clutch enables real-time torque adjustment, ensuring that the cutter head 3 can rotate stably under different soil conditions. The cutter head 3 rotates at high speed under the drive of the reduction gearbox 5, and the high-strength bolts on the blade mounting seat connect the trenching blade to the cutting blade. The blade 9 is securely connected. Laser texturing and anaerobic adhesive coating, combined with disc spring washers, effectively prevent the blade from loosening and ensure efficient power transmission to the trenching blade 9. As the trenching blade 9 rotates with the cutter head 3, it utilizes the high hardness and wear resistance of its nano-composite ceramic material to break up the soil and push it to both sides. The stepped threaded hole and countersunk hole design ensures connection strength while preventing bolt head protrusion from interfering with the operation. The cutter head cover 4 is fixed to both sides of the frame 6 with bolts, shielding the rotating cutter head 3 and trenching blade 9, preventing soil splashing, and ensuring operational safety. The impact resistance of the trenching blade 9 is improved through nano-level toughening technology, which can withstand frequent impacts from hard objects such as gravel in the soil and improve service life.

[0066] Example 2:

[0067] like Figures 1-6 As shown, a trenching machine has a navigation component 7 fixedly connected to the upper surface of the frame 6, and a multispectral camera 8 is also fixedly connected to the upper surface of the frame 6.

[0068] Among them, the navigation component 7 integrates a Beidou-3 dual-mode positioning module and a lidar, which can build a three-dimensional point cloud model of the surrounding environment; the central processor is equipped with a deep learning chip, which can identify obstacles in the field (such as stones and tree stumps) through point cloud data, plan obstacle avoidance paths 2m in advance, and support offline map storage and autonomous path generation, and can still maintain operational accuracy in areas without signal.

[0069] Among them, the multispectral camera 8 adopts hyperspectral imaging technology and is equipped with an active laser illumination module, which can maintain image clarity in low light conditions; its data processing unit has a built-in soil organic matter content inversion algorithm, which can quickly analyze the nutrient distribution of the 0-30cm soil layer through spectral characteristics, and link with the hydraulic system to realize real-time adaptive adjustment of trenching depth in 1cm increments.

[0070] It should be noted that the navigation component 7 and the multispectral camera 8 are existing technologies and are common devices in daily life. Specific models can be selected according to needs, so further details will not be provided here.

[0071] In this embodiment: the navigation component 7 acquires real-time three-dimensional data of the trencher's location and surrounding environment through the BeiDou-3 dual-mode positioning module and lidar. The deep learning chip analyzes the data and plans the path to achieve accurate positioning and early obstacle avoidance. The offline working mode ensures normal operation even in areas without signal, greatly improving trenching straightness and operational safety. The multispectral camera 8 uses hyperspectral imaging technology to collect soil and crop images. Through built-in algorithms, it analyzes the distribution of soil nutrients and links the hydraulic system to adjust the trenching depth in real time. Active laser illumination ensures imaging quality when there is insufficient light, making the trenching depth adaptable to soil conditions, improving operational targeting and efficiency, and reducing energy consumption.

[0072] Example 3:

[0073] This embodiment provides a method for preparing a grooving blade 9, the specific process of which is as follows:

[0074] The trenching blade 9 is composed of the following raw materials in parts by weight: 130 parts of nano alumina powder, 70 parts of nano zirconium oxide powder, 8 parts of nano titanium boride powder, 25 parts of aluminum sol and 220 parts of isopropanol.

[0075] The preparation process of the trenching blade 9 is as follows:

[0076] A suspension was prepared by mixing nano-alumina powder, nano-zirconia powder, and isopropanol at a speed of 600 r / min for 30 min.

[0077] Nano-titanium boride powder and aluminum sol were added to the suspension, and the stirring speed was adjusted to 500 r / min and stirred for 120 min to prepare a mixed slurry.

[0078] The mixed slurry was poured into a special mold for trenching blades and degassed twice under a vacuum of 0.07 MPa for 20 minutes each time, with a 10-minute interval. Then it was dried in a vacuum oven at 85°C for 20 hours.

[0079] The dried green body was placed in an atmosphere sintering furnace. First, in a mixed atmosphere of nitrogen and oxygen with a nitrogen-to-oxygen volume ratio of 3:1, the temperature was increased to 550℃ at 6℃ / min and held for 2.5h. Then, the atmosphere was switched to pure nitrogen and the temperature was increased to 1700℃ at 10℃ / min and held for 4h. After that, the temperature was first reduced to 1200℃ at 5℃ / min and then reduced to room temperature at 3℃ / min to obtain a nano-composite ceramic green body.

[0080] The ceramic blank is ground to form a grooved blade shape, thus obtaining the grooved blade 9.

[0081] It should be noted that the nano alumina powder was purchased from Hangzhou Jikang New Materials Co., Ltd., the nano zirconium oxide powder from Hebei Hongju Metal Materials Co., Ltd., the nano titanium boride powder from Shanghai Xiangtian Nanomaterials Co., Ltd., the aluminum sol from Yueyang Jucheng Chemical Co., Ltd., and the isopropanol from Shandong Fengde Chemical Co., Ltd.

[0082] Example 4:

[0083] The preparation process of the trenching blade 9 provided in this embodiment is basically the same as that in Example 3, except that the specific raw material composition and preparation method of the trenching blade 9 are different in this embodiment; the specific process is as follows:

[0084] The trenching blade 9 is composed of the following raw materials in parts by weight: 145 parts nano alumina powder, 80 parts nano zirconium oxide powder, 10 parts nano titanium boride powder, 30 parts aluminum sol and 250 parts isopropanol.

[0085] The preparation process of the trenching blade 9 is as follows:

[0086] A suspension was prepared by mixing nano-alumina powder, nano-zirconia powder, and isopropanol at a speed of 650 r / min for 35 min.

[0087] Nano-titanium boride powder and aluminum sol were added to the suspension, and the stirring speed was adjusted to 550 r / min and stirred for 135 min to prepare a mixed slurry.

[0088] The mixed slurry was poured into a special mold for trenching blades and degassed twice under a vacuum of 0.07 MPa for 20 minutes each time, with a 10-minute interval. Then it was dried in a vacuum oven at 87.5℃ for 21 hours.

[0089] The dried green body was placed in an atmosphere sintering furnace. First, under a mixed atmosphere of nitrogen and oxygen (nitrogen to oxygen volume ratio 3:1), the temperature was increased to 550℃ at 6℃ / min and held for 2.5h. Then, the atmosphere was switched to pure nitrogen and the temperature was increased to 1725℃ at 10℃ / min and held for 4.5h. After that, the temperature was first reduced to 1200℃ at 5℃ / min and then reduced to room temperature at 3℃ / min to obtain a nano-composite ceramic green body.

[0090] The ceramic blank is ground to form a grooved blade shape, thus obtaining the grooved blade 9.

[0091] It should be noted that the nano alumina powder was purchased from Hangzhou Jikang New Materials Co., Ltd., the nano zirconium oxide powder from Hebei Hongju Metal Materials Co., Ltd., the nano titanium boride powder from Shanghai Xiangtian Nanomaterials Co., Ltd., the aluminum sol from Yueyang Jucheng Chemical Co., Ltd., and the isopropanol from Shandong Fengde Chemical Co., Ltd.

[0092] Example 5:

[0093] The preparation process of the trenching blade 9 provided in this embodiment is basically the same as that in Example 3, except that the specific raw material composition and preparation method of the trenching blade 9 are different in this embodiment; the specific process is as follows:

[0094] The trenching blade 9 is composed of the following raw materials in parts by weight: 160 parts of nano alumina powder, 90 parts of nano zirconium oxide powder, 12 parts of nano titanium boride powder, 35 parts of aluminum sol and 280 parts of isopropanol.

[0095] The preparation process of the trenching blade 9 is as follows:

[0096] A suspension was prepared by mixing nano-alumina powder, nano-zirconia powder, and isopropanol at a speed of 700 r / min for 40 min.

[0097] Nano-titanium boride powder and aluminum sol were added to the suspension, and the stirring speed was adjusted to 600 r / min and stirred for 150 min to prepare a mixed slurry.

[0098] The mixed slurry was poured into a special mold for trenching blades and degassed twice under a vacuum of 0.07 MPa, each time for 20 minutes with a 10-minute interval, and then dried in a vacuum oven at 90°C for 22 hours.

[0099] The dried green body was placed in an atmosphere sintering furnace. First, in a mixed atmosphere of nitrogen and oxygen with a nitrogen-to-oxygen volume ratio of 3:1, the temperature was increased to 550℃ at 6℃ / min and held for 2.5h. Then, the atmosphere was switched to pure nitrogen and the temperature was increased to 1750℃ at 10℃ / min and held for 5h. After that, the temperature was first reduced to 1200℃ at 5℃ / min and then reduced to room temperature at 3℃ / min to obtain a nano-composite ceramic green body.

[0100] The ceramic blank is ground to form a grooved blade shape, thus obtaining the grooved blade 9.

[0101] It should be noted that the nano alumina powder was purchased from Hangzhou Jikang New Materials Co., Ltd., the nano zirconium oxide powder from Hebei Hongju Metal Materials Co., Ltd., the nano titanium boride powder from Shanghai Xiangtian Nanomaterials Co., Ltd., the aluminum sol from Yueyang Jucheng Chemical Co., Ltd., and the isopropanol from Shandong Fengde Chemical Co., Ltd.

[0102] Example 6:

[0103] This embodiment provides a method for preparing the frame 6, the specific process of which is as follows:

[0104] The frame 6 is composed of the following raw materials in parts by weight: 85 parts pretreated polyethylene fiber cloth, 75 parts seaweed fiber felt, 50 parts cashew shell oil modified epoxy resin, 12 parts graphene nanosheets, 6 parts nano hydroxyapatite and 5 parts liquid crystal polymer microspheres.

[0105] The fabrication process of frame 6 is as follows:

[0106] Graphene nanosheets and nano-hydroxyapatite were added to cashew nut shell oil-modified epoxy resin and stirred at 70°C with planetary stirring at 1000 r / min revolution and 600 r / min rotation for 40 min. Then, liquid crystal polymer microspheres were added and stirred for another 15 min to prepare a multifunctional composite resin.

[0107] The pretreated polyethylene fiber cloth was subjected to low-temperature plasma pretreatment in an argon atmosphere at a power of 200W for 8 minutes. It was then alternately laid into the frame mold with seaweed fiber felt in a 3:2 layer ratio. The surface of each layer of fiber material was coated with multifunctional composite resin by electrostatic spraying, and the coating thickness was controlled to be 0.1mm.

[0108] After the layup is completed, carbon dioxide gas is introduced into the mold to 0.15 MPa, and the mold is pressurized and cured at 140°C for 90 minutes. Then the pressure is released and nitrogen gas is introduced to cool the mold to below 60°C.

[0109] After removing the blank, the connecting holes are trimmed using laser engraving technology. Finally, the blank is vacuum impregnated with 5% volume concentration silane coupling agent for 30 minutes to prepare the frame 6.

[0110] The preparation process of pretreated polyethylene fiber cloth is as follows:

[0111] Tween 80 and deionized water were mixed in a certain volume ratio to prepare a mixed solution.

[0112] The polyethylene fiber cloth was immersed in the mixed solution and stirred in a constant temperature water bath at 40°C for 15 minutes to remove oil and dust from the surface of the fiber cloth. Then it was rinsed repeatedly with deionized water 3 times until the rinsing solution was neutral to prepare the polyethylene fiber cloth substrate.

[0113] Prepare polyethylene fiber cloth, silane coupling agent KH-550, deionized water, and Tween 80 for later use.

[0114] Dissolve silane coupling agent KH-550 in deionized water at a volume ratio and stir evenly to prepare a coupling agent solution. Completely immerse the polyethylene fiber cloth substrate in the coupling agent solution and soak it at a constant temperature of 50°C for 40 minutes, gently turning it over every 15 minutes during the process to obtain the modified substrate.

[0115] After draining the surface moisture, the modified substrate is placed in a 60°C forced-air drying oven for 30 minutes for pre-drying, and then transferred to a 110°C hot air setting oven for heat setting under a micro pressure of 0.05MPa for 20 minutes.

[0116] Cooling and cutting: The heat-set polyethylene fiber cloth is naturally cooled to room temperature and then cut into the corresponding specifications according to the size requirements of the frame mold to obtain the pre-treated polyethylene fiber cloth.

[0117] The preparation process of cashew nut shell oil modified epoxy resin is as follows:

[0118] Bisphenol A epoxy resin was added to a reaction vessel, the stirring speed was turned on at 300 r / min, and the temperature of the reaction vessel was raised to 80℃. After the bisphenol A epoxy resin was completely melted, butyl glycidyl ether was added at a mass ratio of 10:1, and the mixture was stirred for 15 min to prepare a mixed base material.

[0119] Then, keeping the stirring speed constant, add cashew nut shell oil to the reactor at a volume ratio of 10:1 (base material to cashew nut shell oil) to prepare a mixed coarse material. Add triethanolamine at a volume ratio of 100:2, heat to 110℃, and maintain the temperature for 2 hours. During this period, take samples every 30 minutes to test the viscosity of the system. Control the viscosity at 25℃ to be 800 mPa·s. When the system viscosity reaches the required level, turn off the heating device, circulate cooling water into the reactor jacket, and reduce the material temperature to 50℃. Then filter through a 100-mesh filter and transfer the filtered modified epoxy resin to a sealed container. Cool to below 30℃ at room temperature, store in a dark and sealed container to prepare cashew nut shell oil modified epoxy resin.

[0120] In this embodiment, it should be noted that the polyethylene fiber cloth was purchased from Jiangsu Jiuding New Material Co., Ltd., the seaweed fiber felt from Qingdao Haida Biotechnology Group Co., Ltd., the cashew nut shell oil modified epoxy resin from Guangdong Huaxun Chemical Co., Ltd., the graphene nanosheets from Changzhou Sixth Element Materials Technology Co., Ltd., the nano hydroxyapatite from Nanjing Epuri Nanomaterials Co., Ltd., the liquid crystal polymer microspheres from Shenzhen Ruiji Biotechnology Co., Ltd., the Tween 80 from Shanghai Aladdin Biochemical Technology Co., Ltd., the silane coupling agent KH-550 from Nanjing Shuguang Chemical Group Co., Ltd., the bisphenol A type epoxy resin from Jiangsu Yangnong Chemical Group Co., Ltd., the butyl glycidyl ether from Shandong Star Chemical Technology Co., Ltd., the cashew nut shell oil from Guangzhou Yisen New Material Co., Ltd., and the triethanolamine from Zhejiang Juhua Co., Ltd.

[0121] Example 7:

[0122] The preparation process of the frame 6 provided in this embodiment is basically the same as that in Embodiment 6, except that the specific raw material composition and preparation method of the frame 6 are different in this embodiment; the specific process is as follows:

[0123] 95 parts of pretreated polyethylene fiber cloth, 80 parts of seaweed fiber felt, 55 parts of cashew nut shell oil modified epoxy resin, 15 parts of graphene nanosheets, 8 parts of nano hydroxyapatite and 6 parts of liquid crystal polymer microspheres.

[0124] The fabrication process of frame 6 is as follows:

[0125] Graphene nanosheets and nano-hydroxyapatite were added to cashew nut shell oil-modified epoxy resin and stirred at 70-80℃ with planetary stirring at 1000 r / min revolution and 600 r / min rotation for 40-50 min. Then, liquid crystal polymer microspheres were added and stirring was continued for 15-20 min to prepare a multifunctional composite resin.

[0126] The pretreated polyethylene fiber cloth is subjected to low-temperature plasma pretreatment in an argon atmosphere at a power of 200W for 8-10 minutes. It is then alternately laid into the frame mold with seaweed fiber felt in a 3:2 layer ratio. The surface of each layer of fiber material is coated with multifunctional composite resin by electrostatic spraying, and the coating thickness is controlled to be 0.15mm.

[0127] After the layup is completed, carbon dioxide gas is introduced into the mold to 0.15 MPa, and the mold is pressurized and cured at 145°C for 95 minutes. Then the pressure is released and nitrogen gas is introduced to cool the mold to below 60°C.

[0128] After removing the blank, the connecting holes are trimmed using laser engraving technology. Finally, the blank is vacuum impregnated with 5% volume concentration silane coupling agent for 30 minutes to prepare the frame 6.

[0129] The preparation process of pretreated polyethylene fiber cloth is as follows:

[0130] Tween 80 and deionized water were mixed in a certain volume ratio to prepare a mixed solution.

[0131] The polyethylene fiber cloth was immersed in the mixed solution and stirred in a constant temperature water bath at 45°C for 18 minutes to remove oil and dust from the surface of the fiber cloth. Then it was rinsed repeatedly with deionized water 3 times until the rinsing solution was neutral to prepare the polyethylene fiber cloth substrate.

[0132] Prepare polyethylene fiber cloth, silane coupling agent KH-550, deionized water, and Tween 80 for later use.

[0133] Dissolve silane coupling agent KH-550 in deionized water at a volume ratio and stir evenly to prepare a coupling agent solution. Completely immerse the polyethylene fiber cloth substrate in the coupling agent solution and soak it at a constant temperature of 55°C for 45 minutes, gently turning it over once every 15 minutes during the process to obtain the modified substrate.

[0134] After draining the surface moisture, the modified substrate was pre-dried in a 65°C forced-air drying oven for 35 minutes, and then transferred to a 115°C hot air setting oven for heat setting under a micro pressure of 0.05MPa for 23 minutes.

[0135] Cooling and cutting: The heat-set polyethylene fiber cloth is naturally cooled to room temperature and then cut into the corresponding specifications according to the size requirements of the frame mold to obtain the pre-treated polyethylene fiber cloth.

[0136] The preparation process of cashew nut shell oil modified epoxy resin is as follows:

[0137] Bisphenol A epoxy resin was added to a reaction vessel, the stirring speed was turned on at 350 r / min, and the temperature of the reaction vessel was raised to 85℃. After the bisphenol A epoxy resin was completely melted, butyl glycidyl ether was added at a mass ratio of 10:1, and the mixture was stirred for 17 min to prepare a mixed base material.

[0138] Then, keeping the stirring speed constant, add cashew nut shell oil to the reactor at a volume ratio of 10:1 to prepare a mixed coarse material. Add triethanolamine at a volume ratio of 100:2, heat to 115℃, and maintain the temperature for 2.3 hours. During this period, take samples every 30 minutes to test the viscosity of the system. Control the viscosity at 25℃ to be 900 mPa·s. When the system viscosity reaches the required level, turn off the heating device, circulate cooling water into the reactor jacket, and reduce the material temperature to 55℃. Then filter through a 100-mesh filter and transfer the filtered modified epoxy resin to a sealed container. Cool to below 30℃ at room temperature, store in a dark and sealed container to prepare cashew nut shell oil modified epoxy resin.

[0139] In this embodiment, it should be noted that the polyethylene fiber cloth was purchased from Jiangsu Jiuding New Material Co., Ltd., the seaweed fiber felt from Qingdao Haida Biotechnology Group Co., Ltd., the cashew nut shell oil modified epoxy resin from Guangdong Huaxun Chemical Co., Ltd., the graphene nanosheets from Changzhou Sixth Element Materials Technology Co., Ltd., the nano hydroxyapatite from Nanjing Epuri Nanomaterials Co., Ltd., the liquid crystal polymer microspheres from Shenzhen Ruiji Biotechnology Co., Ltd., the Tween 80 from Shanghai Aladdin Biochemical Technology Co., Ltd., the silane coupling agent KH-550 from Nanjing Shuguang Chemical Group Co., Ltd., the bisphenol A type epoxy resin from Jiangsu Yangnong Chemical Group Co., Ltd., the butyl glycidyl ether from Shandong Star Chemical Technology Co., Ltd., the cashew nut shell oil from Guangzhou Yisen New Material Co., Ltd., and the triethanolamine from Zhejiang Juhua Co., Ltd.

[0140] Example 8:

[0141] The preparation process of the frame 6 provided in this embodiment is basically the same as that in Embodiment 6, except that the specific raw material composition and preparation method of the frame 6 are different in this embodiment; the specific process is as follows:

[0142] 105 parts of pretreated polyethylene fiber cloth, 85 parts of seaweed fiber felt, 60 parts of cashew nut shell oil modified epoxy resin, 18 parts of graphene nanosheets, 10 parts of nano hydroxyapatite and 8 parts of liquid crystal polymer microspheres.

[0143] The fabrication process of frame 6 is as follows:

[0144] Graphene nanosheets and nano-hydroxyapatite were added to cashew nut shell oil-modified epoxy resin and stirred at 80°C with planetary stirring at 1000 r / min revolution and 600 r / min rotation for 50 min. Then, liquid crystal polymer microspheres were added and stirred for another 20 min to prepare a multifunctional composite resin.

[0145] The pretreated polyethylene fiber cloth was subjected to low-temperature plasma pretreatment in an argon atmosphere at a power of 200W for 10 minutes. It was then alternately laid into the frame mold with seaweed fiber felt in a 3:2 layer ratio. The surface of each layer of fiber material was coated with multifunctional composite resin by electrostatic spraying, and the coating thickness was controlled to be 0.1-0.2mm.

[0146] After the layup is completed, carbon dioxide gas is introduced into the mold to 0.15 MPa, and the mold is pressurized and cured at 150°C for 100 min. Then the pressure is released and nitrogen gas is introduced to cool the mold to below 60°C.

[0147] After removing the blank, the connecting holes are trimmed using laser engraving technology. Finally, the blank is vacuum impregnated with 5% volume concentration silane coupling agent for 30 minutes to prepare the frame 6.

[0148] The preparation process of pretreated polyethylene fiber cloth is as follows:

[0149] Tween 80 and deionized water were mixed in a certain volume ratio to prepare a mixed solution.

[0150] The polyethylene fiber cloth was immersed in the mixed solution and stirred in a 50°C constant temperature water bath for 20 minutes to remove oil and dust from the surface of the fiber cloth. Then it was rinsed repeatedly with deionized water 4 times until the rinsing solution was neutral to prepare the polyethylene fiber cloth substrate.

[0151] Prepare polyethylene fiber cloth, silane coupling agent KH-550, deionized water, and Tween 80 for later use.

[0152] Dissolve silane coupling agent KH-550 in deionized water at a volume ratio and stir evenly to prepare a coupling agent solution. Completely immerse the polyethylene fiber cloth substrate in the coupling agent solution and soak it at a constant temperature of 60°C for 50 minutes, gently turning it over once every 15 minutes during the process to obtain the modified substrate.

[0153] After draining the surface moisture, the modified substrate is placed in a 70°C forced-air drying oven for 40 minutes for pre-drying, and then transferred to a 120°C hot air setting oven for heat setting under a micro pressure of 0.05MPa for 25 minutes.

[0154] Cooling and cutting: The heat-set polyethylene fiber cloth is naturally cooled to room temperature and then cut into the corresponding specifications according to the size requirements of the frame mold to obtain the pre-treated polyethylene fiber cloth.

[0155] The preparation process of cashew nut shell oil modified epoxy resin is as follows:

[0156] Bisphenol A epoxy resin was added to a reaction vessel, the stirring speed was turned on at 400 r / min, and the temperature of the reaction vessel was raised to 90℃. After the bisphenol A epoxy resin was completely melted, butyl glycidyl ether was added at a mass ratio of 10:1, and the mixture was stirred for 20 min to prepare a mixed base material.

[0157] Then, keeping the stirring speed constant, add cashew nut shell oil to the reactor at a volume ratio of 10:1 (base material to cashew nut shell oil) to prepare a mixed coarse material. Add triethanolamine at a volume ratio of 100:2, heat to 120℃, and maintain the temperature for 2.5 hours. During this period, take samples every 30 minutes to test the viscosity of the system, and control the viscosity at 25℃ to 1000 mPa·s. When the system viscosity reaches the required level, turn off the heating device, and circulate cooling water into the reactor jacket to reduce the material temperature to 50-60℃. Then filter through a 100-mesh filter, transfer the filtered modified epoxy resin to a sealed container, cool it to below 30℃ at room temperature, and store it in a dark, sealed container to obtain the cashew nut shell oil modified epoxy resin.

[0158] In this embodiment, it should be noted that the polyethylene fiber cloth was purchased from Jiangsu Jiuding New Material Co., Ltd., the seaweed fiber felt from Qingdao Haida Biotechnology Group Co., Ltd., the cashew nut shell oil modified epoxy resin from Guangdong Huaxun Chemical Co., Ltd., the graphene nanosheets from Changzhou Sixth Element Materials Technology Co., Ltd., the nano hydroxyapatite from Nanjing Epuri Nanomaterials Co., Ltd., the liquid crystal polymer microspheres from Shenzhen Ruiji Biotechnology Co., Ltd., the Tween 80 from Shanghai Aladdin Biochemical Technology Co., Ltd., the silane coupling agent KH-550 from Nanjing Shuguang Chemical Group Co., Ltd., the bisphenol A type epoxy resin from Jiangsu Yangnong Chemical Group Co., Ltd., the butyl glycidyl ether from Shandong Star Chemical Technology Co., Ltd., the cashew nut shell oil from Guangzhou Yisen New Material Co., Ltd., and the triethanolamine from Zhejiang Juhua Co., Ltd.

[0159] Performance Test 1:

[0160] Comparative Example 1: The difference from Example 3 is that Q235 carbon structural steel is used in this example, which is processed and formed by traditional welding process, and then treated with rust removal and anti-rust painting to prepare the trenching blade 9.

[0161] The trenching blade 9 samples provided in Examples 3-5 and Comparative Example 1 were labeled as Examples 3-5 and Comparative Example 1, respectively; and the relevant performance of the trenching blade 9 provided in Examples 3-5 and Comparative Example 1 were tested as follows:

[0162] 1) Hardness performance test: GB / T230.1-2018.

[0163] 2) Abrasion resistance test: GB / T12444.2-2019, using Si C sandpaper as abrasive, load 50N, sliding speed 0.5m / s, the wear amount (mg) after 1 hour of testing.

[0164] 3) Impact toughness test: GB / T229-2020, test impact strength (kJ / m) 2 Impact absorption energy (J) of 65Mn steel was tested.

[0165] 4) Service life test: The failure standard is defined as the wear of the cutting edge reaching 0.5mm, and the cultivated area (mu) is recorded.

[0166] Table 1: Test Data Record Table

[0167] Example 3 Hv1850 7.9 <![CDATA[12.8kJ / m 2 ]]> 495 Example 4 Hv1830 8.3 <![CDATA[12.4kJ / m 2 ]]> 485 Example 5 Hv1820 8.7 <![CDATA[12.1kJ / m 2 ]]> 478 Comparison Group 1 Hv520 132.6 32J 98

[0168] By comparing and analyzing the relevant data in Table 1, it can be seen that the grooving blade 9 prepared by this utility model not only has good wear resistance, but also excellent toughness and impact resistance, and has a long service life, effectively ensuring its quality and performance.

[0169] Performance Test 2:

[0170] Comparative Example 2: The difference from Example 6 is that in this example, ordinary Q345 steel is used for welding and forming, and the surface is painted to prepare the frame 6.

[0171] The rack 6 samples provided in Examples 6-8 and Comparative Examples 2-3 were labeled as Examples 6-8 and Comparative Examples 2-3, respectively; and the relevant performance of the rack 6 provided in Examples 6-8 and Comparative Examples 2-3 was tested as follows:

[0172] 1) Weight test: Weigh the frame 6 with the same structural dimensions using an electronic balance and calculate the weight reduction ratio.

[0173] 2) Bending strength test: According to GB / T1449-2005, the sample size is 80mm×10mm×4mm, the span is 64mm, and the loading speed is 2mm / min.

[0174] 3) Impact toughness test: According to GB / T1451-2005, an unnotched specimen with dimensions of 80mm×10mm×4mm was used.

[0175] 4) Corrosion resistance test: In accordance with GB / T10125-2021, a neutral salt spray test (5% NaCl solution, temperature 35℃) was conducted for 1000 hours. The surface condition was observed and the mass loss rate was measured.

[0176] 5) Fatigue performance test: A three-point bending fatigue test was adopted with a stress ratio of 0.1, a frequency of 10Hz, and a maximum stress of 60% of the bending strength. The number of fracture cycles was recorded.

[0177] Table 2: Test Data Record Table

[0178]

[0179] By comparing and analyzing the relevant data in Table 2, it can be seen that the frame 6 prepared by this utility model not only has good mechanical properties, but also has excellent lightweight properties, corrosion resistance and fatigue life, effectively ensuring its quality and performance.

[0180] The implementation principle of this utility model of a trenching machine is as follows:

[0181] The reduction gearbox 5 reduces and increases the torque of the input power before transmitting it to the cutter head 3. Its modular planetary gear structure and diamond-like carbon coated gear set, combined with a magnetorheological fluid clutch, enable real-time torque adjustment. The cutter head 3 rotates at high speed under the drive of the reduction gearbox 5 and is connected to the trenching blade 9 by high-strength bolts on the blade mounting seat. Laser texturing treatment and anaerobic adhesive coating, combined with disc spring washers, ensure a stable connection between the two. The trenching blade 9 rotates with the cutter head 3. Its cutting edge formed by nanocomposite ceramic material and the structure design of stepped threaded holes and countersunk holes can complete soil crushing and pushing operations. Furthermore, nano-level toughening technology enhances its structural characteristics. The cutter head cover 4 is fixed to both sides of the frame 6 by bolts, shielding the rotating cutter head 3 and trenching blade 9. The frame 6 supports components such as the reduction gearbox 5 and cutter head 3 and is the core support structure of the whole machine. The traction frame 2 connects the frame 6 and the suspension component 1, which can transmit the power of the traction equipment and drive the whole machine to move. Its rigid structure ensures the stability of power transmission. The suspension component 1 connects and fixes the trencher and the traction equipment.

[0182] The multispectral camera 8 uses hyperspectral imaging technology and is equipped with an active laser illumination module to collect images of soil and crops. Its data processing unit has a built-in soil organic matter content inversion algorithm and can be linked with the hydraulic system to adjust the trenching depth. The navigation component 7 integrates a Beidou-3 dual-mode positioning module and a lidar. The central processor is equipped with a deep learning chip, which can obtain three-dimensional data of the trencher's position and surrounding environment, support offline map storage and autonomous path generation, and can identify obstacles in the field and plan obstacle avoidance paths.

[0183] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A trenching machine, comprising a suspension component (1) and a traction frame (2), characterized in that: The trenching machine also includes: The frame (6) is fixed to one side of the traction frame (2); The gearbox (5) is fixed on the upper surface of the frame (6) and its lower end extends through the lower surface of the frame (6); The soil breaking mechanism is set on the lower surface of the frame (6) and includes two cutter discs (3). Multiple trenching blades (9) are fixedly connected at equal intervals on one side surface of the two cutter discs (3). Among them, the opposing surfaces of the two cutter discs (3) are fixed at both ends of the output shaft of the gearbox (5), and the gearbox (5) drives the cutter discs (3) to rotate so that multiple grooving blades (9) rotate.

2. The trencher according to claim 1, characterized in that: The ground-breaking mechanism also includes: Two cutter head covers (4) are provided and fixed to the outer surface of the frame (6); Among them, the two cutter head covers (4) are mirrored.

3. The trencher according to claim 1, characterized in that: The upper surface of the frame (6) is fixedly connected to a navigation component (7).

4. The trencher according to claim 1, characterized in that: A multispectral camera (8) is also fixedly connected to the upper surface of the frame (6).

5. The trencher according to claim 1, characterized in that: The cutter head (3) is provided with multiple blade mounting seats at its edge. Each blade mounting seat has four stepped threaded holes on its surface. The back of the grooved blade (9) is provided with a through countersunk hole. The blade is fixed by bolts passing through the countersunk hole and engaging with the stepped threaded hole. A disc spring washer is provided between the bolt and the countersunk hole.

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