168 results about "Land leveling" patented technology

The invention relates to the technical field of saline-alkali soil improvement, in particular to a saline-alkali soil treatment and improvement method which comprises the following steps: S1, early-stage investigation and planning; s2, physical improvement; s3, chemical improvement; s4, biological improvement; s5, irrigation improvement; s6, later monitoring and maintenance; according to the saline-alkali soil treatment and improvement method, a traditional single improvement mode is broken through, physical, chemical, biological and engineering technologies are fused, a systematic improvement scheme is formed, and physical improvement effectively improves the soil structure and accelerates salt discharge through land leveling, deep ploughing, upturned soil sunning and concealed pipe laying for drainage; a soil conditioner and an acidic material are precisely applied for chemical improvement, and the soil acidity and alkalinity and ion composition are adjusted; in biological improvement, salt is absorbed by virtue of salt-tolerant plants and microbial agents, and soil microbial communities are improved; a fresh water resource or salt water desalination technology is reasonably utilized for irrigation improvement, and salt leaching and water resource recycling are achieved; through the synergistic effect of multiple means, the salt content of soil can be more efficiently reduced, and the soil structure is improved.

The invention relates to the technical field of land layout, and discloses a BIM platform-based land reclamation project automatic rapid layout method and system, and the method comprises the steps: obtaining the site topographic data of an excavation region, obtaining an original landform BIM model of a field based on the data, carrying out the screening, enabling the screened original landform BIM model of the field not to comprise a super-slope region, and carrying out the screening of the original landform BIM model of the field; arranging a terrace according to the contour line to obtain a field piece line, performing grouping based on the contour line interval where the height of the point cloud data is located, calculating a field surface design elevation, and establishing a preliminary terrace model on the basis of the original landform BIM model of the field piece based on the field piece line, the gross width of the terrace and the field surface design elevation; and establishing a ridge and ridge model on the basis of the preliminary terrace model according to the field surface clear width, the ridge width and the ridge height. According to the invention, a convenient, rapid and intelligent field distribution scheme is provided for a land leveling construction project in the hilly area, so that fine improvement construction of the terrace type terraced field in the hilly area is realized.

The invention discloses a restoration method for improving salinized grassland, and relates to the technical field of ecological environment restoration. Physically, a laser land leveling instrument is combined with topographic surveying and mapping to control the land flatness, and an intelligent irrigation and drainage system is constructed; chemically, a novel composite modifier is prepared to regulate soil; biologically, saline-alkaline tolerant grass seeds are treated to construct communities, and microbial agents are applied. And meanwhile, a monitoring network is constructed for precise monitoring and regulation, the cost is reduced by utilizing agricultural wastes and local materials, and sustainable development is realized. The method can effectively reduce the soil salinity, adjust the pH value, improve the vegetation coverage rate, increase the number of soil organic matters and microorganisms, and realize saline-alkali grassland soil improvement, vegetation recovery and ecological sustainable development.

The invention discloses a flat ground side slope profiling mower and a control method thereof. The flat land side slope profiling mower comprises a movable chassis, a side slope weeding device, a flat land weeding device, an obstacle avoidance weeding device and a control system. The side slope weeding device is arranged at the top of the movable chassis and comprises a mechanical arm and a side slope weeding mechanism; the land leveling and weeding device is arranged on the front face of the movable chassis and comprises a land leveling and mowing box and a land leveling and mowing mechanism. The two groups of obstacle avoidance and weeding devices are arranged on the two sides of the flat ground mowing box, and each obstacle avoidance and weeding device comprises a first wheel seat arranged on the flat ground mowing box, a second wheel seat arranged on the first wheel seat and an obstacle avoidance and weeding mechanism arranged in the second wheel seat; the first wheel seat is hinged to the flat ground mowing box. The profiling mower for the flat ground and the side slope has the advantages of being suitable for operation on different terrains such as the flat ground and the sloping field, meanwhile, accurate mowing operation can be achieved, and the mowing efficiency can be improved.

The utility model discloses a ridging device for a strawberry seedling raising field. The ridging device comprises a rack connected to the rear side of a tractor, a rotary tillage mechanism, a furrow plough and a ridging mechanism, wherein the rotary tillage mechanism, the furrow plough and the ridging mechanism are sequentially arranged below the rack from front to back. The ridging mechanism comprises two connecting rods, a connecting shaft, two land leveling rollers and two furrow shaping wheels; the two connecting rods are symmetrically arranged below the rear side of the rack, and a bearing is arranged on the inner side of each connecting rod; a connecting shaft is connected between the two bearings, and the middle of the connecting shaft is fixedly sleeved with a fixing ring. The two leveling rollers symmetrically and rotationally sleeve the two ends of the connecting shaft; the opposite ends of the two land leveling rollers are each fixedly provided with a furrow shaping wheel, the furrow shaping wheels are movably arranged on the connecting shaft in a sleeving mode, and the two sides of the fixing ring are connected with the side faces of the furrow shaping wheels through a plurality of pneumatic telescopic rods and used for adjusting the distance between the two furrow shaping wheels. In conclusion, the device has the advantages of novel structure, convenience in use, high efficiency, stability and the like.

The invention belongs to the technical field of farmland reclamation, and particularly relates to high-standard farmland reclamation land leveling equipment which comprises a traction harrow body, a traction frame is welded to the front side of the upper surface of the traction harrow body, a coupler is fixed to the front side of the upper surface of the traction harrow body, and wheels are fixed to the four corners of the traction harrow body. The device is provided with the stone removing assembly, so that effective separation of stones, residual roots and larger soil blocks and soil particles can be realized, the influence of the stones on subsequent cultivation and irrigation operation is avoided, and the situation that the residual roots possibly carry diseases and pests to cause harm to crop growth is prevented; according to the device, the soil purity is guaranteed, the cultivability of the land is improved, the hindrance of subsequent farming operation is reduced, the situation that equipment is damaged or the operation effect is affected due to residual stones and residual roots during sowing, irrigation and other operations is avoided, and the safety and efficiency of farmland operation are improved.

The invention relates to the technical field of agricultural machinery, in particular to a self-propelled multifunctional dry land leveler and an operation method, and the self-propelled multifunctional dry land leveler comprises a machine body, a tillage component, a soil taking component, a conveying component, a stock bin, a soil discharging component, a land leveling device and the like. The tilling part is arranged at the front end of the land leveler, so that the tilling depth can be controlled according to elevation data; the soil taking component and the conveying component are arranged, so that surface soil after cultivation can be collected to the feeding end of the conveying component, and the soil is further conveyed to the stock bin through the conveying component; a soil discharging part is arranged, and soil in the stock bin can be evenly spread to the ground lower than the datum plane according to elevation data; the rear end of the machine tool is also hooked / dragged with the leveling equipment, and the final leveling operation process can be realized according to the elevation data.

The invention discloses a dynamic extension neighborhood operation path planning method for a satellite navigation land leveler. The method comprises the following steps: S1, delimiting the size of a grid; s2, selecting a working starting point; s3, generating a neighborhood near the current grid, and planning a neighborhood matrix; s4, judging whether the current neighborhood covers the farmland earthwork grid diagram or not, if so, turning to step S8, and otherwise, turning to step S5; s5, judging whether grids meeting non-overload and non-no-load conditions exist in the current neighborhood or not, if the grids meeting the judgment conditions exist in the neighborhood matrix, sequentially storing the grids into an array for temporary storage, otherwise, expanding the range of the searched grids, and returning to the step S3; s6, selecting the next working grid with the minimum turning angle theta; s7, updating the data; and S8, judging whether all the grids are leveled or not, if all the grids are leveled, completing global path planning, and otherwise, returning to the step S3. According to the invention, the invalid working time is shortened, the turning frequency and angle are reduced, and the leveling operation efficiency is improved.

The invention relates to the technical field of agricultural machinery, in particular to a vegetable greenhouse ploughing and soil preparation all-in-one machine which comprises a swing structure, a rotary plough structure and a control system, the swing structure comprises a mounting frame, a main beam, a telescopic structure and a main beam driving structure, the main beam is rotationally mounted on the mounting frame, and the main beam driving structure is arranged between the mounting frame and the main beam; the main beam driving structure is used for driving the main beam to rotate, the telescopic structure is arranged on the main beam, the telescopic structure and the main beam driving structure can work in a matched mode, rotary plough blades transversely plough in a reciprocating mode, soil in a greenhouse can be ploughed only by advancing a tractor for one or two times, frequent back-and-forth turning and reversing are omitted, and the labor intensity of workers is reduced. The structure is not provided with a multi-connecting-rod rocker arm structure, during swinging, the rotary tillage structure linearly reciprocates, no dead angle exists when the rotary tillage structure is used in a greenhouse, obstacles such as stand columns can be avoided, and the rotary tillage structure is very suitable for being used in the vegetable greenhouse.

The invention discloses an all-solid-waste-based cementing material for inducing chlorine salt in waste incineration fly ash by using active magnesium oxide and a preparation method of the all-solid-waste-based cementing material. According to the invention, active magnesium oxide is utilized to induce in-situ conversion of the chlorine salt in the waste incineration fly ash into the cementing material, so that the problems of unstable curing system and potential secondary environmental pollution caused by harmful impurity chlorine salt are effectively improved, and the reaction degree and strength development of the cementing system are promoted under the action of co-processing the copper-containing electroplating sludge; and meanwhile, it is guaranteed that the heavy metal leaching concentration of the system meets the GB / T 16889-2008 national safety landfill standard. The cementing material prepared by the invention is expected to be used as building materials for roadbeds, land leveling, pit backfilling and the like, effectively widens the value-added utilization mode of solid wastes, realizes efficient toxicity reduction of the waste incineration fly ash, has positive influence on the environment, society and economy, and has wide application prospects. And an innovative sustainable development mode is provided for resource utilization of solid wastes and green transformation of the building industry.

The invention discloses a method for improving the quality of cultivated land through mixed sowing of perennial beans, grasses and forage grass. The method comprises the steps that deep ploughing and soil turning are conducted, land leveling is conducted, and organic fertilizer is applied to serve as base fertilizer; the method comprises the following steps: determining a mixing ratio of leguminous forage grass to gramineous forage grass of 3: 7-1: 1, and carrying out mixing pretreatment on the two forage grass seeds, namely preparing a nano titanium dioxide solution containing various nutrients and trace elements, screening stress-resistant domesticated rhizobium, disinfecting, soaking, coating and the like; reasonably topdressing in the forage grass growth period; when the pasture grows to a specific stage, the pasture is cut for 2-3 times every year; after 3-5 years of continuous utilization, crop rotation is carried out, and deep ploughing and fertilization are carried out again. According to the seed mixing pretreatment mode, the operation process is simplified, the cost is reduced, balanced nutrition supply is guaranteed, synchronous germination of seeds and coordinated growth of seedlings are promoted, and the fertilizer utilization rate is increased. The screened adversity-resistant domesticated rhizobium enhances the stress resistance of mixed sowing grassland, improves the yield and quality of alfalfa, and further improves the overall quality of mixed sowing pasture.

The invention provides an ecological restoration method for backfilling dehydrated slime into a bauxite goaf, which comprises the following steps of: backfilling filtered and dehydrated slime into the goaf, and covering soil; and then land leveling, slope treatment, soil improvement, irrigation and drainage engineering, field road construction, farmland protection, ecological environment protection, science and technology supporting service and other processes are carried out. Organic fertilizers (such as pig manure and chicken manure) and a biological silicon fertilizer are added on the basis of an inorganic fertilizer, so that the physical and chemical properties of soil are more effectively improved, and meanwhile, the risk of heavy metals in the soil is reduced; by implementing a terraced field slope descending measure in the goaf, the land is smoother, water and soil loss is effectively prevented, the soil fertility is kept, the repaired land can be returned to farmers for planting common crops such as corn, peanuts and cassava, the income of the farmers can be increased, and local agricultural development can be promoted.

The application relates to the technical field of agricultural machinery, in particular to a land leveler for fine and deep application of organic fertilizer, which comprises a device whole, a push leveler for land leveling is arranged on the device whole, a ditching shovel and a fertilizer pipe are arranged below the device whole, an arc bending block is arranged on one side of the fertilizer pipe close to the ditching shovel, a baffle is fixedly arranged in the fertilizer pipe, a hydraulic rod is fixedly arranged in the fertilizer pipe, a fixed sliding block is fixedly connected to the power output end of the hydraulic rod, a limiting pipe is rotatably connected to one side of the fixed sliding block, a torsional spring is arranged between the limiting pipe and the fixed sliding block, and a sliding rod is slidably connected to the limiting pipe. In the process of use, the arc-shaped scraper can scrape off the organic fertilizer adhered to the arc bending block in the fertilizer pipe, so that the fertilizer pipe is prevented from being blocked by the accumulated organic fertilizer.

1. The name of the design product: the body of excavator. 2. The use of the design product: used as a whole for earthwork excavation, loading, land leveling, crushing, demolition and other operations, and used locally for the body of excavator. 3. The design points of the design product: the body of excavator. 4. The picture or photo that best indicates the design points: perspective view 1. 5. Other circumstances that need to be explained: the design application is a partial appearance, the part requested for protection is the part without red coating, the above-mentioned colors are only for determining the protected part, and the design does not request protection of colors.

The application discloses a method and system for automatic land leveling control of excavators based on visual laser fusion, and relates to the field of automatic control of engineering machinery. The method obtains three-dimensional terrain point clouds of a working area through a binocular vision acquisition module, combines reference height signals of a laser leveling instrument and body posture data of an IMU, and constructs a global dynamic terrain model through a multi-sensor fusion algorithm. According to preset land leveling parameters, a target path for shovel operation is generated, joint control amounts of a swing arm, a dipper arm and a shovel are calculated in combination with kinematic inverse solution of the excavator, and finally, adaptive land leveling operation of the shovel is realized through a hydraulic actuator. The application solves the problems of traditional manual land leveling, such as dependence on experience, low precision and poor efficiency, significantly improves land leveling operation precision and efficiency, reduces labor intensity of operators, and is suitable for road subgrade leveling, building site excavation and leveling, farmland reconstruction and other scenes.

The invention relates to the technical field of tamping equipment, and discloses land leveling and tamping equipment which comprises a flat plate, an engine is fixedly mounted at the top end of the flat plate, a fixing box is fixedly mounted at the top end of the flat plate, and a rotating shaft is rotatably connected to the middle of the fixing box; transmission wheels are fixedly mounted at the front end of the rotating shaft and the output end of the engine, and transmission belts are in transmission connection with the surfaces of the transmission wheels. Fan blades are arranged on a rotating shaft, air inlet boxes are installed on the two sides of the device, when the device conducts tamping operation, rotation of the rotating shaft can drive the fan blades to rotate, suction force is generated in a fixing box, and external air is mixed with dust to enter the air inlet boxes through the combined action of a fixing pipe and a connecting pipe; therefore, dust generated in the working process is sucked into the air inlet box, the situation that dust is too much in the working environment is avoided, the situation that the dust is sucked by workers is avoided, and the health of the workers is guaranteed.

The scarifier of the bulldozer for land leveling engineering comprises a bulldozing mechanism, and a scarifier mechanism is installed on the rear side of the bulldozing mechanism; the scarifier mechanism comprises a bracket connecting mechanism, three groups of multi-section linear driving mechanisms and three groups of cutter tooth angle driving mechanisms; the support connecting mechanism comprises a rotating stick, and the three sets of multi-section linear driving mechanisms are circularly and symmetrically installed on the outer wall of the rotating stick. And three groups of soil loosening cutter tooth mechanisms, three cutter tooth angle arc sliding mechanisms and three cutter tooth angle driving mechanisms are mounted on the three groups of multi-section linear driving mechanisms. According to the scarifier, the multi-section linear driving mechanism is adopted, the angle and the cut-in depth of the cutter teeth can be flexibly adjusted through control of the servo motor and the air cylinder, and when the adjacent cutter teeth of the cutter tooth set execute the scarification task, a coordinated cut-in angle is formed according to the contraction degree of the double-rod air cylinder, so that the scarification efficiency is improved. The coordination working mode can ensure that the cutter teeth work at the best angle when cutting into the soil, and the soil loosening efficiency is improved.

The utility model discloses a rotary tillage soil moisture leveling device for a soil moisture leveling plough, and belongs to the field of agricultural machinery. A plough frame and left and right plough shares mounted on the plough frame are arranged at the front end of the rotary tillage soil moisture leveling device, a double-end transmission gearbox is arranged above the plough frame, and the front side of the double-end transmission gearbox is in transmission connection with a power output device (such as a tractor). A rotary tillage knife rest, an upper soil retaining plate, a gear box, a knife shaft bearing seat assembly, a knife shaft, a soil shifting knife, a soil breaking knife, a rear soil retaining guide plate and the like are arranged at the rear end of the rotary tillage soil moisture leveling device. The gearbox is in transmission connection with the double-end transmission gearbox through a transmission device; the tool rest is connected with the plow frame through a special installation assembly and is provided with a suspension structure adapting to topographic relief. And the tail part is provided with an angle-adjustable soil plastering plate and an adjusting assembly. The machine can effectively adapt to different terrains, achieves efficient soil treatment and accurate soil moisture leveling, and is suitable for agricultural land leveling and soil moisture content treatment operation.

The invention belongs to the technical field of building construction, and discloses convenient and efficient building construction bulldozing equipment which comprises an adjusting mechanism, the adjusting mechanism comprises a first motor, a gear is rotationally connected to the first motor, and racks are engaged with the upper side and the lower side of the gear; through cooperation of the movable bulldozing plate, the fixed bulldozing plate and other structures, the size of the bulldozing plate can be adjusted conveniently, when large-area bulldozing is needed, the first motor can be started to enable the movable bulldozing plate to be unfolded, the single bulldozing amount is increased, the land leveling speed is remarkably increased, and the overall construction efficiency is improved; according to the bulldozing device, the movable bulldozing plate can be folded or unfolded at the edge or corner of a field according to needs, so that the bulldozing operation can be better attached to the boundary of the field, and the movable bulldozing plate can be folded when bulldozing is conducted in a narrow space, so that the adaptability of the bulldozing device is improved.

The invention discloses a device for measuring land flatness, comprising an adjustable leveling tripod and a base plate, a support frame and an RTK module are fixed on the base plate, a top plate is fixed on the top of the support frame, a vertical rotating shaft is rotatably penetrated in the top plate, a driving mechanism for driving the rotating shaft to rotate is provided on the top plate, two first connecting members are fixed on the rotating shaft at the upper end of the top plate, and the first connecting member is detachably fixed with a cross bar with an adjustable length perpendicular to the rotating shaft, a sliding mounting member is detachably fixedly installed on the cross bar, a laser radar scanner is detachably fixedly installed on the sliding mounting member, a counterweight rod is detachably fixedly installed on the other first connecting member, and a counterweight block is detachably fixedly provided on the counterweight rod. The measurement method using the device can quickly obtain multiple circular terrain DEM models, and perform overlapping part fitting to obtain an accurate land flatness DEM model, thereby solving the difficulty of laser radar scanners in measuring farmland flatness.

The application discloses a floating regulation type paddy field beating and land leveling machine, which comprises a suspension device, a frame, a floating device, a ground surface profiling device, a soil scraping plate and a lifting plate; the suspension device is hinged with the frame and connected with the frame through the ground surface profiling device; the soil scraping plate is movably connected with the frame through the floating device; and the lifting plate is connected to the bottom end of the frame. The earth carrying capacity is controlled by adjusting the length of the secondary oil cylinder; the operation and transportation states of the application are switched by adjusting the length of the primary oil cylinder; and the coupling effect among the suspension device, the floating device and the lifting plate reduces the influence of the hard bottom layer on the paddy field leveling operation.

1. The name of the design product: Land leveling tool. 2. The use of the design product: A tool for leveling land. 3. The design key points of the design product: Lies in the shape. 4. The picture or photo that best shows the design key points: Perspective view.

The invention provides adjustable automatic ditching equipment for land consolidation and an operation method thereof. The adjustable automatic ditching equipment for land consolidation comprises a ditching front-section support, a ditching assembly used for conducting ditching treatment on land, a soil separation detection assembly, a land leveling assembly used for conducting leveling action on the land subjected to ditching through the ditching assembly and a pre-soil-loosening assembly, the ditching assembly is installed at one end of the ditching front-section support, and the soil separation detection assembly is installed at the other end of the ditching front-section support. The soil separation detection assembly is installed at the end, away from the ditching front-section support, of the ditching assembly, the land leveling assembly is installed on the lower side of the ditching front-section support, and the pre-soil-loosening assembly is installed at the end, away from the ditching assembly, of the soil separation detection assembly. According to the adjustable automatic ditching equipment for land consolidation, through mutual cooperation of all the structures, pre-ground breaking can be conducted on hard land, the ditching efficiency of ditching is improved, simultaneous multi-angle ditching can be achieved, the application scene of ditching can be improved, and the adaptability of the adjustable automatic ditching equipment is improved.

The invention relates to the technical field of land renovation, in particular to an intelligent leveling device for land renovation, which comprises a vehicle body, a crawler mechanism for driving the vehicle body to advance is arranged on the vehicle body, a support arm is fixed on the vehicle body, a bucket for shoveling soil is hinged on the support arm, and a lifting oil cylinder is arranged between the vehicle body and the bucket. The two ends of the lifting oil cylinder are hinged to the vehicle body and the bucket respectively. A discharging port is formed in the bucket, a smashing roller used for smashing shoveled soil is rotationally installed on the bucket, and a conveying belt used for conveying the smashed shoveled soil is rotationally installed on the portion, located below the discharging port, of the vehicle body. According to the invention, a plurality of procedures such as soil shoveling, soil crushing, conveying, screening and compacting can be organically integrated into a set of continuous and automatic operation system, the undisturbed soil can be efficiently treated, and the efficiency, quality and automation degree of land leveling are obviously improved.

The utility model provides a foundation leveling device for civil engineering, belongs to the technical field of land leveling equipment, and solves the problem that the ground leveled in the prior art is uneven in hardness. The device comprises a traction wheel, a grinding roller, a positioning rod, a traction plate, a fixing plate, a shoveling plate, a mounting frame and a roller. The two positioning rods are arranged in parallel in the horizontal direction, one side between the positioning rods is movably connected with a traction wheel through a rotating shaft, and the other side between the positioning rods is movably connected with a grinding roller through a rotating shaft. A traction plate is further arranged on the outer side of the position, where the grinding roller is located, between the positioning rods. The two sides of the traction plate are each provided with a fixing plate. A material shoveling plate inclining downwards is fixed between the two fixing plates. A mounting frame is fixed to the tops of the two fixing plates. The inner walls of the two sides of the mounting frame are movably connected with rollers through rotating shafts. And different crushing pieces are distributed on the outer wall of the roller at intervals. The device can be used for moving and leveling the hollow foundation, and the uneven hardness of the ground foundation is avoided.

1. The name of the design product: excavator. 2. The use of the design product: used for earthwork excavation, loading, land leveling, crushing, demolition and other operations. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The invention discloses a paddy field intelligent land preparation machine with a fertilizer spreading structure, and belongs to the field of land preparation machines, the paddy field intelligent land preparation machine comprises side plates, the upper ends of the side plates are fixedly connected with a top plate, the upper end of the top plate is fixedly connected with a discharging hopper, the bottom of the discharging hopper extends to the lower end of the top plate, and a rotating rod is rotatably connected between the two side plates; the two ends of the rotating rod penetrate through the side plates and are fixedly connected with moving wheels, and a transmission and soil preparation assembly is arranged on the inner sides of the side plates. The core purpose of the fertilizer spreading device is to ensure that the fertilizer can be uniformly and accurately spread into the soil so as to promote the growth of crops, accurate regulation and spreading of the fertilizer are realized through the rotating roller, the material containing groove, the baffle plate, the partition plate and other components, and the fertilizer can be ensured to be uniformly spread in the whole working area through fine regulation and control. The fertilizer application efficiency is improved, fertilizer waste is avoided, and reasonable utilization of the fertilizer is ensured, so that healthy growth of crops is promoted.

The utility model discloses an adjustable land leveling device which comprises a fixing base, a leveling plate is arranged at the bottom end of the fixing base, a height adjusting mechanism is arranged between the leveling plate and the fixing base, an installation butt-joint mechanism is arranged at the top end of the fixing base, and the height adjusting mechanism comprises a connection guide assembly, a height adjusting assembly and a height adjusting assembly. The fixing seat is arranged at the joint of the leveling plate and the fixing seat; the adjusting assembly is arranged at the top end of the fixed seat and connected with the connecting guide assembly; the locking assembly is arranged on the side face of the fixing base and connected with the connecting guide assembly; through the designed connecting groove, the connecting rod, the screw hole, the adjusting screw rod, the bearing and the hand-cranking wheel, the position of the leveling plate can be adjusted, meanwhile, through the designed locking hole, the through hole and the locking rod, the connecting rod with the adjusted position can be locked and positioned, and compared with the prior art, adjustment work of the leveling plate is greatly facilitated.

The utility model discloses a split-flow type soil leveling and preparation machine which comprises a main support, a folding mechanism, a split-flow frame, a split-flow soil guide device, a soil crushing harrow blade, a soil crushing and leveling press frame and a supporting wheel, and an L-shaped supporting rod is rotationally connected to a square support; according to the utility model, the folding mechanism provides a turnover storage function for the side brackets and the supporting wheels, so that the equipment is convenient to store, and meanwhile, the shunting frames and the shunting soil guiders which are arranged in a staggered manner form a shunting type soil leveling structure, so that the soil leveling effect is improved; according to the whole equipment, the soil crushing, leveling and pressing frame, the shunting soil guide device and the soil crushing harrow blade are integrated and fixed through a frame structure formed by the side supports and the main support, soil can meet the seeding requirement through one-time treatment, damage to the soil caused by multiple sets of machines is reduced, and the working efficiency is improved; in the using process, the soil crushing harrow blades which are inclined by 10 degrees relative to the main support can crush soil blocks more effectively, meanwhile, the situation that the operation load of equipment is increased due to the too large inclination angle is avoided, and the oil consumption of soil preparation is reduced.

The invention relates to the technical field of land leveling engineering, in particular to a high-precision land leveling operation device based on Beidou positioning, which comprises a driving chassis, the top of the driving chassis is provided with a cockpit, and the top of the cockpit is provided with a laser radar. And cameras are installed at the positions, located on the two sides of the laser radar, of the top of the driving chassis, a Beidou satellite navigation device is installed at the top of the driving chassis, and a first mechanical arm and a second mechanical arm are installed on the outer side wall of the cockpit. The excavator bucket is responsible for excavating and transferring a large-area soil layer, the clamping jaw is responsible for accurately clamping stones and normalizing soil, and the excavator bucket and the clamping jaw cooperate with each other, so that the problem that a single operation mechanism cannot thoroughly treat terrain defects is solved, the land leveling quality is greatly improved, a special collection hopper is arranged, centralized collection and transferring of stones and muck are achieved, secondary scattering is avoided, and the subsequent cleaning cost is reduced. And the working environment is optimized.