50results about How to "Prevent weed" patented technology

The invention relates to the field of agricultural implements, in particular to a cotton stalk pulling platform free of row controlling. The cotton stalk pulling platform free of row controlling comprises a rack. A bottom plate is arranged on the rack. A reel and an auger conveyer are arranged above the bottom plate. The cotton stalk pulling platform free of row controlling further comprises a stalk pulling roller which is arranged at the front end of the rack, a clearing roller located between the stalk pulling roller and the bottom plate and a stalk shifting roller located above the base plate, wherein the stalk pulling roller is located below the reel, the auger conveyer is located behind the stalk shifting roller and arranged above the stalk shifting roller, the stalk pulling roller comprises a stalk pulling shaft and a plurality of rows of V-shaped toothed plates which are arranged in the circumferential direction of the stalk pulling shaft, the V-shaped toothed plates are tangent to the contour of the stalk pulling shaft, the clearing roller comprises a clearing shaft and a plurality of rows of clearing teeth which are arranged in the circumferential direction of the clearing shaft, the tooth point of each clearing tooth is right opposite to the bottom tooth of the corresponding V-shaped toothed plate, and the stalk shifting roller comprises a stalk shifting shaft and rectangular plates which are arranged in the circumferential direction of the stalk shifting shaft. According to the cotton stalk pulling platform free of row controlling, the structure is simple, the cotton stalks can be pulled out completely without row controlling, and work energy consumption is greatly reduced.

The invention relates to the technical field of agricultural machinery and provides a stubble collecting and returning machine. The machine comprises a gear box, a tripod, a stander, a stubble collecting device knife pivot, a stubble collecting device knife bed, a stubble collecting knife, a stubble chopping knife, a returning device knife pivot, a returning knife bed, a returning knife, a fixed knife, a case and a copying sliding plate, wherein the gear box is mounted on the stander; the tripod is mounted on the stander by a suspension loop; the stubble collecting device knife pivot is horizontally mounted on the stander; the stubble collecting device knife bed is welded on the stubble collecting device knife pivot according to helix arrangement for mounting the stubble collecting knife and the stubble chopping knife; the returning device knife pivot is horizontally mounted on the stander; the returning knife bed is welded on the returning device knife pivot according to helix arrangement for mounting the returning knife; the case is mounted outside the returning device; the fixed knife is welded at the inner side of the front of the case; and the copying sliding plate is mounted on the case. When the machine works, the stubble collecting device collects the stubbles and throws the stubbles together with the straws into the returning device and the returning device crushes and returns the stubbles and the straws, thus realizing that the machine and the tools enter into the field once and carry out straw stubble collecting and returning operations simultaneously.

The invention discloses a longitudinal-axial-flow roller, and belongs to the technical field of combine harvester threshing separating devices. The longitudinal-axial-flow roller comprises a roller body, a roller front shaft, a power input shaft, a roller front support and a roller rear support. The roller body comprises a feeding-in part and a roller body part, and an anti-tangling element is arranged between the roller front support and the feeding-in part and comprises a guiding crescent moon, a wedge-shaped roller front cover, a roller front cover seal cover and roller front protrusions wherein the guiding crescent moon and the wedge-shaped roller front cover are fixed to the roller front support, the guiding crescent moon comprises a disc and a guiding plate, one end of the disc is fixedly installed on the roller front support, and an opening is formed in the other end of the disc. The disc penetrates through an installing hole in the roller front cover, the roller front cover seal cover is fixed to the roller front cover, and the roller front protrusions are fixed to the front end face of the feeding-in part and located inside the opening. In harvesting, the roller front shaft is not likely to be tangled with weeds, working efficiency is high, kinds of crops are harvested without replacing the roller, and the requirements for earnings of a user are met.

The invention discloses a deep rotary tillage soil high-temperature aerial fog disinfection combined machine based on low-frequency ultrasonic resonance and a working method, and relates to the fieldof agricultural machinery. The machine comprises a rotary tillage knife roll, the rotary tillage knife roll comprises a rotary tillage knife shaft, rotary tillage blades and spiral blades, the plurality of groups of spiral blades are uniformly distributed on the rotary tillage knife shaft in the axial direction, the spiral blades are mounted at the lower end of the rotary tillage knife shaft, therotary tillage knife shaft is of a hollow structure, a low-frequency ultrasonic resonance device is arranged in the hollow structure, the low-frequency ultrasonic resonance device can rotate along with the rotary tillage knife shaft, and the low-frequency ultrasonic resonance device sprays gas with a certain temperature to soil so as to disinfect the soil through aerial fog. According to the method, the high-temperature gas is used for carrying out disinfection and sterilization on the soil, a traditional soil disinfection mode is effectively replaced, the cost is advantageously saved, and pollution to the environment and the soil is reduced.

There are provided a biodegradable mulching-mat for preventing weed in rice cultivation having improved biodegradability to be completely degraded in several months, good mulching properties of preventing the growth of weeds, elevating soil temperature and increasing soil moisture capacity, and good strength and durability; and a method for manufacturing said mulching-mat by means of extrusion molding.

A portable planting system according to an exemplary embodiment of the present disclosure comprises a flexible, lightweight sack having an opening located in at least one end for receiving the soil. Opposing ends of the sack are held shut and supported by respective opposing handles which maintain the soil within the sack and allow the sack to be lifted and moved. Furthermore, the portable planting system comprises a liner which receives the sack. The liner has an upper opening for receiving the sack and opposing end openings for receiving the handles. Also, the portable planting system comprises one or more straps for containing the sack within the liner. Small holes can be poked in the exposed upper portion of the sack in order to plant individual plants and the sack prevents weeds from growing around the plants. The liner contains a portion of the water and provides stability to the portable planting system when the system is moved.

The invention relates to a mowing device and provides a walking type mower. The walking type mower includes a rack for supporting, and a cutting tool is arranged on the rack; the cutting tool includesa holding member which rotates with a cutting tool mounting shaft as a center, a rope shaped cutting tool body held by the holding member, and a grounding member which rotates with a rotating shaft as a center relative to the holding member; the grounding member which rotates with the mounting shaft as a center relative to the holding member is arranged below the holding member, and a guide partwhich coincides with the traveling direction is arranged on the ground side of the grounding member. The walking type mower is provided with the grounding member capable of maintaining a stationary state when the walking type mower is in contact with the ground. Frictional resistance between the nylon rope holding member and the ground is reduced by means of a pinch bar on the grounding member when walking type mower moves forward to cut grass, and the walking type mower is easier to operate and moves in the desired direction.

The invention discloses a driving type corrugated disc ditching device which comprises a transplanter box shifting main beam and a machine frame. The device further comprises a power input part, a hydraulic drive part, a ditching assembly and a pressing and depth limiting part. The pressing and depth limiting part is arranged below the transplanter box shifting main beam, the power input part arranged on the machine frame drives the ditching assembly to work through the hydraulic drive part, and the ditching assembly comprises a plurality of ditching units. A hydraulic-drive corrugated disc is adopted for automatic ditching, the problem that ditching and soil piercing of untilled rice stubbly field are difficult can be solved, the rotation direction of the corrugated disc can be conveniently changed, the rotation direction of the corrugated disc is opposite to the machine forwarding direction in parcel of rice field with many stubbles and straw, the situations that weed is wound on a cutter head and soil is attached to the cutter head are avoided, the rotation direction of the corrugated disc should be consistent to the machine forwarding direction during work of normal parcel of rice field, and energy consumption is reduced.

The invention discloses a combined harvester bridge driving axle structure, and belongs to the technical field of combined harvesters. The structure comprises a bridge driving axle rotationally installed on an axle shell of a combined harvester. The bridge driving axle is located in the axle shell and is provided with a plurality of bridge driving axle chain wheels. A bridge inner support is fixed to the position, close to the bridge driving shaft, in the bridge shell. The bridge inner support is fixedly provided with a plurality of grass cutters used for preventing grass from being wound on the bridge driving shaft. An opening is formed in the middle of each grass cutter. The openings correspond to the bridge driving axle chain wheels one to one. The invention further provides a bridge device of the combined harvester. The structure and the device prevent the grass from being wound on the bridge driving shaft, a user does not need to stop the harvester and clean the harvester frequently, work efficiency is improved, and the situation that the harvester is not cleaned in time and accordingly machine parts are abraded or damaged in the early stage is avoided.

The invention relates to a stalk pulling roller capable of preventing grass intertwining and belongs to the technical field of agricultural machinery. The stalk pulling roller comprises a stalk pulling shaft and a plurality rows of V-shaped toothed plates and is characterized in that the stalk pulling shaft is rotatably arranged on a rack, the V-shaped toothed plates are circumferentially arrangedon the stalk pulling shaft at intervals, a rotary disk is fixed at each of the two ends of the stalk pulling shaft, a shell fixed on the rack covers the outer side of each rotary disk, and a triggering rack group located between each shell and the corresponding rotary disk is fixed on the inner side of the shell; U-shaped clamp seats are arranged at two ends of each row of V-shaped toothed platesin a clamped manner, push plates fixed on the corresponding U-shaped clamp seats are arranged on two sides of each row of V-shaped toothed plates, drive racks are fixed on the U-shaped clamp seats, rotary shafts penetrates the rotary disks, one ends of the rotary shafts are provided with drive gears constantly meshing with the drive racks, the other ends of the rotary shafts are provided with triggering gears, and the triggering gears mesh with the racks in the triggering rack groups when the rotary shaft rotates to a set position. The stalk pulling roller has the advantages that intertwininggrass can be cleaned from inside to outside, tooth cleaning can be achieved, and grass intertwining of the toothed plates can be prevented.

The invention provides a sine peak valley type seedling strip soybean precision no-tillage planter. The planter comprises a rack, a land wheel, a seedling strip cleaning and preparation device, a fertilization mechanism and a seeding unit; the land wheel is arranged at the forefront of the rack; the fertilization mechanism comprises a fertilizer box, a fertilizer apparatus and a fertilizer placer; the fertilizer box is arranged above the rack; the fertilizer apparatus is installed on the fertilizer box and located under the fertilizer box; the fertilizer placer is arranged below an outlet of the fertilizer apparatus; the fertilizer placer is installed on the rack and located behind the land wheel; the seedling strip cleaning and preparation device comprises a gearbox, a cutter shaft and a stubble cleaning cutter; the seeding unit comprises a seed box, a rear supporting beam, a seed-metering furrow opener, a seed-metering device, a seed distributor and a press wheel assembly; the seed box is installed on the rear supporting beam; the seed-metering device is arranged below the seed box; the seed-metering furrow opener is arranged in front of the seed-metering device; a press wheel is connected with the fertilizer apparatus and the seed-metering device through transmission mechanisms to provide power for the fertilizer apparatus and the seed-metering device; and the seeding unit is installed on the rack through a parallel four-bar mechanism.

The invention discloses an intermediate driven small-angle oblique deep rotary tilling device. The device comprises a rack, a suspension part, a gearbox and knife rolls, wherein the gearbox is positioned at the center of the rack; the output shaft of the gearbox is a spline shaft, and two sides of the output shaft are respectively connected with on end of the knife rolls on two sides of the output shaft; the other end of each knife roll is arranged in the bearing of a bearing block, and the bearing block is fixed inside the rack through screws; each knife roll comprises a rotary tilling blade, a blade disk and a blade shaft; the knife rolls are obliquely arranged in a plane, and form a theta-degree angle with a driving shaft of a truck tractor. According to the intermediate driven small-angle oblique deep rotary tilling device, soil under the gearbox can be removed, the gearbox is prevented from interfering with untilled land during working, lateral force is greatly reduced, high-reliability deep tillage and excellent grass-burying and stubble-cleaning capability can be achieved. The intermediate driven small-angle oblique deep rotary tilling device is applied to the technical field agricultural machinery.

The invention provides a method for the arrangement of rotary tillage stubble-breaking blades in a knife roller, belonging to the agricultural machinery field. The method comprises the following steps that: the knife roller is evenly divided into a left half knife roller and a right half knife roller, and the blades of the left half knife roller and the right half knife roller are arranged along a spiral line respectively; for the spiral lines of the two half knife rollers, the rotary directions are opposite and the rising angels(theta) are the same; starting positions of the spiral lines of the left half knife roller and the right half knife roller are different with theta/2=180 degree/N, and the blades in the same spiral line are the same in direction, and the blades in two adjacent spiral lines of the same half knife roller are opposite in direction, and the number of blades arranged on each spiral line are equal to that of cutter heads of each half knife roller, and N is the total number of blades of the left half knife roller or the right half knife roller. The knife rollers arranged according to the method of the invention can ensure that better working quality and little power consumption are achieved when the machine utilizes the same blade of the same knife roller in the rotary tilling operation as well as the stubble-breaking operation, and the operations are smooth.

The invention provides a threshing cylinder tooth component of a whole-feed harvesting machine. The threshing cylinder tooth component comprises an installing base. The installing base is provided with cylinder teeth, the cylinder teeth are formed by forging of a 45# material, the cylinder teeth and anti-winding pieces inside the cylinder teeth are integrated, and no gap is formed between the anti-winding pieces and the cylinder teeth. The center of each cylinder tooth is in a cone shape, the protruded top ends are in an arc shape, and the two sides are of a symmetrical shape structure. Due to the fact that an integrated forging structure mode is adopted, the production cost is lower, the integral strength of the cylinder teeth is higher, and the anti-winding pieces and the external teeth are combined to be a whole to protect cylinder tooth gaps from weed winding; the top ends of the cylinder teeth are in an arc shape, the load is light during running, and the grain breakage rate is low; the two sides of the cylinder teeth are of the symmetrical shape structure, when one side is abraded, the other side can be turned and used, and the threshing cylinder tooth component is more economical and practical.

The invention provides a threshing system for combine harvesters, comprising a threshing mechanism, a screening mechanism and a secondary threshing mechanism. The threshing mechanism is used for dual-vertical shaft threshing of straws conveyed by a conveying trough. The screening mechanism is used for screening threshed grain to obtain clean grain. The secondary threshing mechanism is capable of conveying incompletely screened straws into the threshing mechanism for secondary threshing, and threshing effect is further improved. The threshing system is high in throughput, allows complete threshing, is high in durability and has promising application prospect.