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40results about How to "Good profiling effect" patented technology

Low-temperature thermal insulation paper, preparation method and application thereof

The present invention involves a low-temperature insulating paper, and relates to a preparation method of said low-temperature insulating paper and its applications. The invention prepares the low-temperature insulating paper with superfine alkali-free glass fiber and wet paper preparation process; the definite quantity of said low-temperature insulating paper is 10-20 g / m2 and the thickness is 0. 06 - 0. 09 g / m2. The preparation method of said low-temperature insulating paper includes: beating, stirring and scattering the superfine alkali-free glass fiber, and drying after stripping in paper machine, last coiling and preparing the products. The low-temperature insulating paper in the invention can be used for vacuum multi-layer insulation structure of copious cooling liquid accumulating container and complement pipes. The low-temperature insulating paper in the invention has good adiabaticity, the degassing ratio is small in vacuum, the profiling performance is good, and it has long life and wide uses.
Owner:HANGZHOU FUSHIDA SPECIAL MATERIAL

Profiling equipment, laminating device, laminating method and display device

ActiveCN113053245AAvoid the problem of insufficient profilingReach recovery forceDomestic articlesIdentification meansDisplay deviceEngineering
The embodiment of the invention provides profiling equipment, a laminating device, a laminating method and a display device. The profiling equipment comprises a profiling jig and an acting device. The profiling jig is made of a shape memory material and has a first state and a second state. The profiling jig in the first state comprises an attaching surface, and the attaching surface is used for attaching a flexible display panel. The profiling jig in the second state comprises a profiling surface, and the profiling surface corresponds to the target shape of the flexible display panel. The acting device acts on the profiling jig to change the state of the profiling jig. In the profiling process of the profiling equipment, the action device enables the profiling jig to be switched from the first state to the first state, the flexible display panel attached to the attaching face deforms along with the shape memory material, full profiling can be achieved, the problems of wrinkles, bubbles, no display, abnormal display and the like during fitting with a curved surface cover plate can be avoided, a better laminating effect can be ensured, and the laminating yield and reliability are improved.
Owner:BOE TECH GRP CO LTD +1

Profiling top-cutting machine for cotton top

The invention discloses a cotton top-cutting machine, in particular to a cotton top-cutting machine which can perform profiling according to the height on the top of a cotton plant. The cotton top-cutting machine comprises a machine frame, a power mechanism, a transmission mechanism and a top-cutting cutter, and is characterized in that: a suspension bracket is arranged on the machine frame; a suspension profiling mechanism is suspended below the suspension bracket, and comprises an expansion bracket; the expansion bracket is suspended below the suspension bracket; a sliding boot plate is arranged on the lower part of the expansion bracket; a balance mechanism is arranged between the sliding boot plate and the suspension bracket, and comprises a pulley mechanism consisting of a pulley and a pull rope; one end of the pull rope is connected with the sliding boot plate, and the other end of the pull rope is provided with a balance hammer; and the top-cutting cutter is arranged on the sliding boot plate. Compared with the prior art, the cotton top-cutting machine performs on the height of the cotton plant directly by the expansion bracket and the sliding boot plate which are suspended below the suspension bracket, and is simple in a structure and good in profiling effect.
Owner:CHANGJI CHENXIN WEIYE AGRI MACHINERY MFG

Small self-propelled disc type mowing-flattening harvesting machine

The invention belongs to the technical field of pasture harvesting, and relates to a small self-propelled disc type mowing-flattening harvesting machine. The small self-propelled disc type mowing-flattening harvesting machine comprises a walking part and a disc type mowing-flattening mechanism, wherein a power transmitting system of the harvesting machine is arranged at the right side of a vehicle body, a cab (15) is arranged at the left side of the vehicle body, and the disc type mowing-flattening mechanism is installed at the front end of the walking part. The small self-propelled disc type mowing-flattening harvesting machine has the advantages that a dual-clutch mechanism is adopted to separate the power of the walking part and a working part, so the functions of the two parts are not mutually influenced, and the mechanical handling performance and security is increased; the whole structure is simple and compact due to the adopted arrangement mode, and the harvesting machine is more suitable for small meadows or is not suitable for terrains using large-middle mowing flattening mills; double discs are adopted, so the cutting length is short, the ability of adapting the terrain is strong, and the profile effect is good; a parallel four-bar mechanism, a hydraulic system and a sliding palm are adopted, so that a certain profile effect can be achieved; a gear box is adopted to distribute mowing and flattening power; and a gear set is adopted to carry out power transmission of two chipper discs and matching of directions of rotation.
Owner:CHINA AGRI UNIV

Fretsaw cutting device

ActiveCN107637271AWide adaptability of shaft diameterReduce volumePicking devicesEngineeringWire saw
The invention discloses a fretsaw cutting device which comprises an execution portion and a positioning clamping portion. The execution portion comprises a fretsaw, a profiled supporting piece, a supporting piece rotating shaft, a movable sliding table, a fixed sliding table, a fretsaw wheel, a profiled roller and a power source, the positioning clamping portion is of a multi-jaw structure and comprises clamping jaws, a cross-shaped universal shaft and a universal shaft connecting rod. According to the device, the clamping jaws evenly distributed along the circumference are adopted for clamping an object to be cut; by adopting the movable and fixed combined sliding table mode, rotation in the circumferential direction of the object to be cut is performed; by adopting the profiled supporting piece and the profiled roller at the tail end, profiling is performed; cutting is performed by adopting the fretsaw mode. The fretsaw cutting device is well applicable to comb discharging operationof comb handles on banana stalk, and has the advantages of being small in overall size, simple in structure, wide in stalk adaptability, high in reliability, good in profiling effect, small in cut, good in cutting quality, low in energy consumption cost and the like.
Owner:SOUTH CHINA AGRI UNIV

Settled snow shoveling and removing device and application thereof

The invention discloses a settled snow shoveling and removing device and application thereof. The settled snow shoveling and removing device consists of a snow shoveling device, a framework and a snow removing device. The framework is connected with an underframe of a vehicle movably. t Snow shoveling blades are clamped on Y-shaped rests and are fixed with the same through fixing bolts, the snow shoveling blades extend outwards, adhesive damping plates are attached to the snow shoveling blades, turnover shafts are mounted in slide grooves and provided with rubber jackets respectively, the turnover shafts and a blade distributing bracket are provided with tension springs, the blade distributing bracket is pressed downwards by the torsion springs so that the snow shoveling blades can contact with the ground, and the shovel rests in the front row and the back row are distributed on the framework in a staggered manner. The framework is hinged on a large beam of the vehicle through a swing arm, and the large beam is provided with a limit retaining plate. The snow removing device includes that a power machine mounted at the back of the vehicle drives a conveying belt on a removing transmission wheel, iron connecting grooves are mounted on the conveying belt at intervals, and scrapers and brushing strips are mounted on the iron connecting grooves. The settled snow shoveling and removing device can be conveniently assembled below the vehicle or suspended on a tractor, and is high in obstacle crossing, fine in profile modeling, free of damages to the road surfaces, fast in snow removing and wide in application.
Owner:肖旭明

Lifting control device for planting unit of full-automatic transplanting combined operation machine

The invention discloses a lifting control device of a planting unit of a full-automatic transplanting combined operation machine. The lifting control device comprises a lifting oil cylinder and a ground profiling system, wherein the lifting oil cylinder is connected with a hydraulic system, and a valve group is arranged on a connecting pipeline for the lifting oil cylinder and the hydraulic system and is fixed to a mounting support. The lifting control device is characterized in that the ground profiling system comprises a profiling mechanism and a transmission mechanism; the profiling mechanism comprises a sensing wheel, a movable support and a fixed support, and the transmission mechanism comprises a pull wire, a movable lug, a pull lug and the like. The lifting control device of the planting unit of the full-automatic transplanting combined operation machine carries out active control based on passive sensing. Compared with an existing active control profiling system, the lifting control device is low in manufacturing and use cost, easy to maintain and stable in operation in a working state; compared with an existing passive profiling system, shake transmitted to the planting unit by sudden terrain change can be reduced through structural optimization, mechanical damage is avoided, and meanwhile the lifting control device has a good profiling effect.
Owner:NANJING AGRI MECHANIZATION INST MIN OF AGRI

Extrusion processing method for external star wheel

InactiveCN104400364ALight surface oxidationDecarburization lightMaterial consumptionMedium frequency
The invention discloses an extrusion processing method for an external star wheel. The method comprises the steps that S1, blanking is carried out according to a component size; S2, medium frequency induction heating is carried out on blank material; S3, upsetting of the blank material heated to a target temperature is conducted until specified dimensions are achieved; S4, warm extrusion of the blank material subjected to upsetting is conducted until a blank in the component size is formed; S5, spheroidizing annealing is carried out on the blank; S6, cleaning is carried out; S8, phosphating is carried out on the blank; S9, saponification processing is carried out on the component; S10, cold finishing is carried out on the blank by utilizing a cold forging die and a pressure machine; and S11, the blank after cold finishing is checked. The forming precision of the external star wheel is improved and material consumption is reduced. Metal flow lines inside the blank are axially distributed and the mechanical property is better. The machining allowance of a forge piece is optimized and most cutting machining tasks can be removed. The product precision is improved and the cost is greatly reduced.
Owner:SICHUAN HUAQING MACHINERY

Overall paddy field ridge profile modeling single-side ridger

The invention relates to an overall paddy field ridge profile modeling single-side ridger, and belongs to agricultural machines. A sprocket-wheel case A is fixedly installed on a main transmission case, a sprocket-wheel case C is fixedly installed on the sprocket-wheel case A, a sprocket-wheel case B is rotationally installed on the sprocket-wheel case C, a sprocket-wheel case D is rotationally installed on the upper portion of the outer side of the sprocket-wheel case A, the main transmission case is sequentially connected with the sprocket-wheel case A and the sprocket-wheel case D, and thesprocket-wheel case A is sequentially connected with the sprocket-wheel case C and the sprocket-wheel case B; a lower rotary blade shaft assembly and an upper rotary blade shaft assembly are connectedto a power output shaft of the sprocket-wheel case B and a power output shaft of the sprocket-wheel case D respectively, a ridge building press wheel assembly is installed on a power output shaft ofthe sprocket-wheel case C, and a damper A, a damper C and a damper B are arranged between the main transmission case and the sprocket-wheel case B, between the sprocket-wheel case A and the sprocket-wheel case D as well as between the sprocket-wheel case C and a profile modeling and an anti-sidesway roller assembly respectively. The overall paddy field ridge profile modeling single-side ridger realizes overall profile modeling and is novel and reasonable in structure, good in profile modeling effect, uniform in operation power load, small in vibration, low in power consumption and good in ridge building quality.
Owner:NORTHEAST AGRICULTURAL UNIVERSITY

Rapid molding method for special-shaped quartz composite ceramic wave-transmission antenna window

The invention discloses a rapid molding method for a special-shaped quartz composite ceramic wave-transmission antenna window. The method comprises the following steps: 1, removing an impregnating agent at the surfaces of quartz fibers by adopting a combination mode of water steam cooking and oxygen-introducing heat treatment; 2, performing surface treatment on the pre-treated quartz fiber cloth in a silica sol with a low solid content, and performing cutting to obtain a fiber cloth having an equivalent area of 5-100 mm<2>; 3, immersing the fiber cloth piece in a silica sol with a high solid content, performing spreading on a special pressure molding tool, performing pressure molding, performing curing, and performing demoulding; and 4, immersing the pressed blank in a silica sol once, and performing heat treatment at 850 DEG C; and performing processing according to requirements to obtain a design size. The method provided by the invention can realize rapid molding, and has high efficiency, low process costs and uniform materials.
Owner:湖北三江航天江北机械工程有限公司

Backpack seed melon combined harvester

The invention discloses a backpack seed melon combined harvester which comprises a transverse conveyor device, a pickup machine, a melon distributor, a melon guiding device, a melon discharging device, a lift conveyor and a melon seed extractor. The transverse conveyor device is mounted at the front of an engine, the pickup machine is mounted at the front of the transverse conveyor device, the melon distributor is arranged below the front of the pickup machine, the melon guiding device is arranged between the pickup machine and the transverse conveyor device, the melon discharging device is mounted on the rear upper portion of the pickup machine and corresponds to a melon inlet of the melon guiding device, the lift conveyor is mounted on the engine, and the melon seed extractor is mounted at the rear of the engine; a melon outlet of the melon guiding device corresponds to a melon inlet of the transverse conveyor device, a melon inlet and a melon outlet of the lift conveyor respectively correspond to a melon outlet of the transverse conveyor device and a melon inlet of the melon seed extractor, the pickup machine is of a roller type structure and comprises a pickup machine framework and a roller, the roller is movably connected onto the pickup machine framework, a plurality of pickup teeth are fixedly arranged on the peripheral surface of the roller, and the pickup machine framework is hinged to a framework of the transverse conveyor device. The backpack seed melon combined harvester has the advantages of high seed melon pickup efficiency and production efficiency and good profiling effect.
Owner:新疆郅拓农机科技有限公司

Electronic copying device for roller type cotton pickers

The invention discloses an electronic copying device for roller type cotton pickers and belongs to the technical field of electronic monitoring. The electronic copying device comprises a splitter skeleton, an electronic copying plate, a mounting-plate positioning groove, sensors, a copying positioning rod, a copying connecting rod, a copying roller and a splitter sleeve; the electronic copying plate is fixed on the splitter skeleton through the mounting-plate positioning groove, the sensors are installed on the electronic copying plate, the copying positioning rod is connected with the copying connecting rod, the tail end of the copying connecting rod is connected with the copying roller, the copying positioning rod and the copying connecting rod are movably connected with the electronic copying plate, the copying roller is connected with the copying connecting rod through a bearing and a shaft, and the splitter sleeve is fixed on the outer side of the splitter skeleton. The electronic copying device is simple in structure, height of cotton picking heads can be monitored and adjusted in real time, and the electronic copying device is convenient and flexible in use.
Owner:SHIHEZI UNIVERSITY

A self-propelled field weeder

The invention relates to the technical field of agricultural machinery, in particular to a self-propelled field weeding machine. The self-propelled field weeding machine is used with a mini-tiller and is used for weeding rapeseed fields or broad bean fields with certain row spacing. The self-propelled field weeding machine is characterized in that the upper ends of telescopic handles penetrate square holes of fixing seats and are fixed into the fixing seats by the aid of jackscrews, and shovels are fixed to the lower ends of the telescopic handles by the aid of bolts; a fixing connecting frame is welded on the side, which is opposite to the fixing seats, of the middle of a large frame, and a connecting pin hole is longitudinally fixedly formed in the front end of the fixing connecting frame by means of welding; a telescopic pipe sleeve is connected to the rear end of a side of the fixing connecting frame by means of welding, a telescopic pipe is fixed into the telescopic pipe sleeve by the aid of an ascending limiting wheel adjusting handle, and an ascending limiting wheel is fixed to the lower end of the telescopic pipe by the aid of a wheel carrier. The self-propelled field weeding machine has the advantages that the overall height of the self-propelled field weeding machine is controlled by the ascending limiting wheel, good profiling effects can be realized by the three shovels, and proper and accurate weeding row spacing can be adjusted via U-shaped bolts; the self-propelled field weeding machine is simple in structure and convenient to use, can be operated easily and conveniently and is a perfect agricultural machine, and the weeding efficiency can be obviously improved.
Owner:青海林丰农牧机械制造有限公司

Ultrasonic-assisted cavitation abrasive grain flow finishing method for titanium alloy surface oxide layers

The invention provides an ultrasonic-assisted cavitation abrasive grain flow finishing method for titanium alloy surface oxide layers. The method comprises the following steps: stirring a solid-liquidtwo-phase mixed fluid to form high-speed turbulence vortex; extracting the solid-liquid two-phase mixed fluid, mixing the solid-liquid two-phase mixed fluid with micro-nano bubbles to form a high-speed and high-pressure gas-liquid-solid three-phase abrasive grain flow; spraying the high-speed and high-pressure gas-liquid-solid three-phase abrasive grain flow to a workpiece in a tank body for staged surface treatment; meanwhile, emitting ultrasonic waves by an ultrasonic device configured below the workpiece to form an ultrasonic cavitation effect, and forming a negative fluctuation environment with positive and negative pressure alternating rapidly in the high-speed fluid in the tank body to cause expansion and compression of micro-nano bubbles in the high-speed fluid. Under the comprehensive action of turbulence, jet, cavitaiton and ultrasonic waves, a manner of combining cavitation abrasive grain jet and turbulence integrated surrounding type processing and ultrasonic enhancement isadopted, synchronous stripping of different in-situ defects of oxide scale and derivative and chain stripping of new defect points can be realized, the removal efficiency is high, and the processinguniformity is good.
Owner:SHANGI INST FOR ADVANCED MATERIALSNANJING CO LTD

Electronic profiling device for cotton picker

ActiveCN103703931BReal-time monitoring and height adjustmentMonitor and adjust heightPicking devicesEngineeringDistributor
The invention discloses an electronic copying device for a cotton picker, and belongs to the technical field of electronic monitoring. The electronic copying device for the cotton picker comprises a distributor framework, a copying guide rail, a positioning and connecting plate, a copying guide rail shaft, an upper copying plate and a bottom copying plate, wherein the positioning and connecting plate is fixedly connected to the distributer framework; the upper portion of the copying guide rail shaft is connected with the positioning and connecting plate, and the lower portion of the copying guide rail shaft is connected with the upper copying plate; the copying guide rail is in movable connection with the copying guide rail shaft; the copying guide rail is connected with a copying shifting fork and a sensor; one end of the bottom copying plate is in movable connection with the upper copying plate, and the other end of the bottom copying plate makes contact with the copying guide rail. The electronic copying device is simple in structure and capable of monitoring and adjusting the height of a cotton picking head in real time, thereby being convenient and flexible to use.
Owner:星光正工(江苏)采棉机有限公司

Device and method for realizing limit swinging angle of 30 degrees of mower by self-adaption to terrain

ActiveCN113179740APlay the effect of ground profilingGood profiling effectMowersMowerPasture
The invention relates to a device and method for realizing a limit swinging angle of 30 degrees of a mower by self-adaption to terrain, and belongs to the field of pasture harvesting machine. The mower comprises a cutter main frame, a lifting hydraulic cylinder, a lifting arm, a rotating arm and a grounding sliding plate, when the mower works on the rugged ground, the grounding sliding plate makes contact with the ground all the time, the terrain enables the lifting hydraulic cylinder to be subjected to pressing or pulling acting force, so that oil in a cylinder cavity of the lifting hydraulic cylinder can flow out to an energy accumulator, or oil in the energy accumulator flows back into the cylinder cavity of the lifting hydraulic cylinder, the cutter main frame connected with the lifting hydraulic cylinder at the first hinge point fluctuates up and down along with the terrain environment, and the grounding profiling effect is achieved. Meanwhile, through accurate design of the structure and the size of a mechanical arm of the mower, the mower can swing leftwards and rightwards by 30 degrees to the limit, and under the combined action of a hydraulic system and a floating adjusting spring, the mower can adapt to terrain environments such as slopes and the like, and a better profiling effect is achieved.
Owner:CHINA AGRI UNIV

Constant-speed double-surface edge grinding machine for machining special-shaped products

The invention discloses a constant-speed double-surface edge grinding machine for machining special-shaped products. The constant-speed double-surface edge grinding machine comprises a base, wherein a power mechanism, a transmission mechanism, a profiling mechanism, a tool mechanism and a machining mechanism are sequentially arranged on the base from bottom to top; the power mechanism is used for providing driving force and moves along with a curvilinear path of a product; the transmission mechanism is used for transmitting the driving force generated by the power mechanism to the profiling mechanism; the profiling mechanism is used for controlling the machining mechanism to machine the product according to the curvilinear path of the product; and the tool mechanism is used for clamping the product. By the constant-speed double-surface edge grinding machine, power is applied to the curvilinear path of which the shape is the same with that of the special-shaped product, the speed of power drive is consistent with that of the outer edge of the special-shaped production, so that constant-speed machining is realized, and after the edge of the product is ground, the thicknesses of the material of the product are consistent. The constant-speed double-surface edge grinding machine is simple and practical, and is high in profiling effect and high in edge grinding precision.
Owner:ハンツォウトップリフトマシーナリーカンパニーリミテッド

A device and method for a lawn mower to adapt to terrain and realize a limit swing angle of 30°

ActiveCN113179740BPlay the effect of ground profilingGood profiling effectMowersHydraulic cylinderRobotic arm
The invention relates to a device and method for a lawn mower to adapt to terrain and realize a limit swing angle of 30°, belonging to the field of forage harvesting machinery. The lawn mower includes: a cutter general frame, a lifting hydraulic cylinder, a lifting arm, a rotating arm and a grounding slide , when the lawn mower is working on a rough and undulating ground, since the grounding slide plate is always in contact with the ground, the terrain will cause the lifting hydraulic cylinder to be pressed or pulled, so that the oil in the cylinder cavity of the lifting hydraulic cylinder can flow out to the energy storage The hydraulic device or the oil in the accumulator flows back into the cylinder cavity of the lifting hydraulic cylinder, so that the cutter frame connected with the lifting hydraulic cylinder at the first hinge point rises and falls with the terrain environment, which has the effect of grounding profiling. At the same time, through the precise design of the structure and size of the mechanical arm of the lawnmower, the lawnmower can swing to the left and right by 30° to the limit. Under the joint action of the hydraulic system and the floating adjustment spring, the lawnmower can self-adapt Slopes and other terrain environments have a better profiling effect.
Owner:CHINA AGRI UNIV

A double edge milling machine for large wall thickness steel plate

The invention relates to a large-wall thick-steel plate double-edge edge milling machine. The edge milling machine comprises an entrance conveying roller device, wherein a centering device is mounted on the entrance conveying roller device; the rear end of the entrance conveying roller device is connected with a milling device, an exit conveying roller and a surface chip removal device; and a clamping vehicle reciprocates on a track among the entrance conveying roller device, the milling device, the exit conveying roller and the surface chip removal device. The machine provided by the invention is compact and reasonable in structure and convenient to operate; the whole machine adopts full-automatic control of CNC; a console is provided with a human-machine interface for inputting the wall thickness, plate width, length and material of the steel plate; and the working parameters of each execution part of the edge milling machine are automatically determined. A power box of the edge milling machine is driven by a gear and has high rigidity and strong cutting ability; a steel plate can be conveniently guided into / out of the edge milling machine; in edge milling, the condition that a pressure roller in the middle touches the steel plate can be ensured, and the profiling effect in cutting is good; and the centering, clamping and milling of the steel plate are controlled by a servo motor, the positioning is accurate, and the groove dimensional accuracy is high.
Owner:SUNYO S&T CO LTD

Rapid prototyping method of special-shaped quartz composite ceramic wave-transparent antenna window

The invention discloses a rapid prototyping method for a special-shaped quartz composite ceramic wave-transparent antenna window. The steps are as follows: 1. Remove the wetting agent on the surface of the quartz fiber by combining steam cooking and oxygen heat treatment; 2. Pretreated the quartz fiber The cloth is surface treated in low solids silica sol. The cutting equivalent area is 5mm 2 ~100mm 2 fiber cloth. 3. Dip the fiber cloth in the high-solid content silica sol, and then lay it on the special pressure setting tool for pressure setting, curing and demoulding. 4. Dip the pressed billet in the silica sol for one round, and heat treatment at 850°C. Processed to the design size as required. The method can realize rapid prototyping, high efficiency, low process cost and uniform material.
Owner:湖北三江航天江北机械工程有限公司

Special snow plow for road sidewalk and residential area

The invention relates to a special snow remover for road pavements and residential districts, and is particularly suitable for narrow areas, such as the road pavements, and the residential districts. The snow remover comprises a mini-sized motor vehicle as a walking and power body, a snow shovel arranged at the front end of the vehicle, as well as a rolling impact roller and a row brush arranged at the back part of the vehicle, wherein a fixed beam of the snow shovel is hinged and connected to the front end of a vehicle body through a double-connecting rod mechanism and a front shovel oil cylinder, and is driven by the front shovel oil cylinder to perform parallel lifting movement; the rolling impact roller is arranged at the back part of the vehicle body through a roller lifting mechanism, and is driven by the lifting mechanism to perform lifting movement; and the row brush is arranged at the back end of the vehicle body through a vertical lifting mechanism. The snow remover can remove floating snow and treaded ice and snow, and has strong road surface profiling capability and obstacle crossing ability.
Owner:JILIN NORDIC HEAVY MACHINERY CO LTD

Raking type low-loss pickup

InactiveCN111165181AStable PushNo winding accumulationLoadersAgricultural undercarriagesEngineeringMechanical engineering
The invention discloses a raking type low-loss pickup. A raking device (Figure 5) with a pickup function is used for raking and alternatively inserting windrow and conveying the windrow into an augerclose to telescopic raking teeth; two rotary discs (1) are obliquely arranged in parallel, elastic teeth are always perpendicular to a windrow direction in a movement process, and the tips of the elastic teeth are bent to a windrow advancing direction, so that the front half cycle of the rotary motion of the elastic teeth plays a stable pushing effect on the windrow, and the rear half cycle movesoppositely relative to the windrow without winding and stacking; the elastic teeth (3) are arranged on two sides of an elastic tooth fixing frame (2) in rows, so that the supporting width is increased, and a good propelling effect is achieved on the windrow; and when the elastic teeth rotate to rise, the entrained winding of the windrow can be prevented under the action of a pressing plate (5). Awalking device (9) and a profiling plate (7) both play a profiling action on the ground. During a working process, the windrow is always in a clamped and supported state, a pickup process is stable, the grain loss caused by throwing of the windrow is reduced, and meanwhile, the raking device and a header are in seamless connection, so that the grain loss is avoided.
Owner:NORTHWEST A & F UNIV

Small self-propelled disc type mowing-flattening harvesting machine

The invention belongs to the technical field of pasture harvesting, and relates to a small self-propelled disc type mowing-flattening harvesting machine. The small self-propelled disc type mowing-flattening harvesting machine comprises a walking part and a disc type mowing-flattening mechanism, wherein a power transmitting system of the harvesting machine is arranged at the right side of a vehicle body, a cab (15) is arranged at the left side of the vehicle body, and the disc type mowing-flattening mechanism is installed at the front end of the walking part. The small self-propelled disc type mowing-flattening harvesting machine has the advantages that a dual-clutch mechanism is adopted to separate the power of the walking part and a working part, so the functions of the two parts are not mutually influenced, and the mechanical handling performance and security is increased; the whole structure is simple and compact due to the adopted arrangement mode, and the harvesting machine is more suitable for small meadows or is not suitable for terrains using large-middle mowing flattening mills; double discs are adopted, so the cutting length is short, the ability of adapting the terrain is strong, and the profile effect is good; a parallel four-bar mechanism, a hydraulic system and a sliding palm are adopted, so that a certain profile effect can be achieved; a gear box is adopted to distribute mowing and flattening power; and a gear set is adopted to carry out power transmission of two chipper discs and matching of directions of rotation.
Owner:CHINA AGRI UNIV

A forage replenishing machine used in conjunction with a four-wheel tractor

ActiveCN104255098BTo achieve the purpose of water storageWon't breakSpadesPloughsDrive shaftAgricultural engineering
A forage replenishing machine used in conjunction with a four-wheel tractor, including a frame, a connecting frame for connecting with the four-wheel tractor is arranged in front of the frame, a gearbox, a seed box and a fertilizer box are arranged on the frame, and the fertilizer box is located on the seed In front of the box, there is a fertilizer sowing shaft at the exit of the fertilizer box, a sowing shaft at the exit of the seed box, and a ground wheel shaft at the bottom of the rear of the frame. There are ground wheels at both ends of the ground wheel shaft, and the gearbox is connected by a spline. The shaft is connected to the rear output shaft of the four-wheel tractor. The output of the gearbox is connected to the cutter shaft with the saw disc subsoiling knife located under the frame. There is a first transmission shaft tube, the second transmission shaft tube is connected with the first transmission shaft tube, the outlet of the fertilizer box is provided with a fertilizer discharge pipe, the outlet of the seed box is provided with a seed discharge tube, and a disc-shaped opening is provided under the frame. There is a fertilizer discharge pipe and a seed discharge pipe between adjacent ditch openers, and the invention can carry out grass sowing and supplementary sowing without destroying the original turf.
Owner:青海林丰农牧机械制造有限公司

Matte abrasive block and preparation method thereof

PendingCN112123224AGood profile performance and wear resistanceSimple production operationAbrasion apparatusGrinding devicesCarbide siliconCarbon black
The invention discloses a matte abrasive block and a preparation method thereof. The matte abrasive block comprises the following components of, by weight: 5 parts to 60 parts of epoxy resin, 1 part to 40 parts of a curing agent, 0.2 part to 3 parts of a coupling agent, 0.5 part to 10 parts of white carbon black, 0.3 part to 10 parts of polyvinyl butyral, 6 parts to 69 parts of silicon carbide, and 1 part to 9 parts of nitrile rubber buna. On the basis of epoxy resin, white carbon black, polyvinyl butyral, silicon carbide and nitrile butadiene rubber are added, so that the prepared matte abrasive block has good profiling performance and wear resistance; and on the premise of good wear resistance, a conventional manufacturing mode is changed according to the preparation method, pouring, vacuumizing and pressurization are adopted in the preparation method, the produced matte abrasive block is greatly improved leaves no grinding cracks on the surface of a machined workpiece, and the surface of the obtained workpiece has the good matte effect, and can meet the requirements on the quality of a matte surface.
Owner:肇庆高新区纳德科技有限公司

Device and method for realizing integral knitting for horizontal division area structures

The invention discloses a device and method for realizing integral knitting for horizontal division area structures. The device comprises a yarn fixing device, a controlling device, a driving device, and a division area knitting working table, wherein the yarn fixing device is used for fixing a start knitting yarn and allowing the tensile force to be even, so as to be easy to knit; the controlling device controls the driving device to operate by presetting yarn carrying device moving programs corresponding to each knitting structure; the driving device comprises a power source and a telescopic rod group; the division knitting working table is composed of at least two independent areas; each division area is formed by a yarn carrying device and a knitting track; the yarn carrying devices move in line directions, and then in the row directions with the bearing of knitting tracks; and differences of moving directions, times, and step distances of the yarn carrying devices in a machine circulation derives different knitting structures. The device and the method can realize distribution of division areas with different structures in peripheral direction of a revolved body, and satisfy differentiation using requirements for different areas of a pre-form body.
Owner:YIXING HUAHENG HIGH PERFORMANCE FIBER WEAVING

Low-temperature thermal insulation paper preparation method

The invention relates to a low-temperature heat-insulating paper, and also relates to a preparation method and application of the low-temperature heat-insulating paper. The low-temperature heat-insulating paper of the present invention is prepared by using ultra-fine alkali-free glass fiber through a wet papermaking process; the basis weight of the low-temperature heat-insulating paper is 10-20 g / m2, and the thickness is 0.06-0.09 mm. The preparation method of the low-temperature heat-insulating paper includes: beating the ultra-fine alkali-free glass fiber, stirring and dispersing it, taking it with a paper machine, drying it and finally forming it into a roll to obtain a finished product. The low-temperature heat-insulation paper of the invention can be used in the vacuum multi-layer heat-insulation structure of cryogenic liquid storage and transportation containers and matching pipelines. The low-temperature heat-insulating paper of the invention has good heat-insulation performance, low outgassing rate under vacuum, good profiling property, long service life and wide application.
Owner:HANGZHOU FUSHIDA SPECIAL MATERIAL

Dilating catheter for shaping valve

The invention is suitable for the technical field of medical apparatus and instruments, providing a dilating catheter for shaping a valve. The dilating catheter for shaping the valve comprises a ball bladder, an inner pipe and an outer pipe, wherein the inner pipe and the outer pipe are axially sheathed; the ball bladder, the inner pipe and the outer pipe are respectively provided with a far end and a near end; and the near end of the ball bladder is connected with the far end of the outer pipe, and the far end of the ball bladder is connected with the far end of the inner pipe. The dilating catheter for shaping the valve also comprises a tailstock, wherein the tailstock is arranged on the near end of the outer pipe and can push the inner pipe to axially move so as to drive the ball bladder to extend or shrink, and the tailstock is provided with an injection port communicated with the outer pipe. In the dilating catheter for shaping the valve, a movable tailstock is added on the dilating catheter for shaping the valve so as to push the inner pipe to drive the ball bladder to change the axial and radial sizes of the dilating catheter, so that the dilating catheter has good passing characteristic and copying characteristic, thus the dilating catheter for shaping the valve can be suitable for different crowds and different heart valve surgeries, and intensifies flexibility for using the dilating catheter in surgery, thereby having stronger universality and safer use for the dilating catheter.
Owner:SHINEYARD MEDICAL DEVICE CO LTD
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