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42results about How to "Reduce passability" patented technology
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Forklift gantry
The invention relates to a forklift gantry which comprises four classes of gantries and a goods fork frame, wherein two rear lifting oil cylinders are uniformly distributed on a connecting plate of the first class gantry, and the piston rod ends of the rear lifting oil cylinders are connected with the second class gantry; a second class chain wheel, a second class chain, the second class gantry and the first class gantry form a moving chain wheel group; the third class chain wheel, the third class chain, the second class gantry and the highest class gantry form a moving chain wheel group; andthe third class gantry and the highest class gantry are pulled by the chains to move relative to the first class gantry under the interaction of the rear lifting oil cylinders and the chains. Front lifting oil cylinders are uniformly distributed on the highest class gantry; the piston rod ends of the front lifting oil cylinders are provided with two chain wheels; and one ends of the two chains matched with the chain wheels are connected with the highest class gantry, and the other ends are connected with the rear part of the goods fork frame. The chain wheels, the chains, the highest class gantry and the goods fork frame form a moving chain wheel group; and the goods fork frame can move relative to the highest class gantry. The four groups of gantries are compactly distributed and are basically distributed in parallel, thereby ensuring minimal front suspension and favorable visual field.
Owner:ANHUI HELI CO LTD
Small crawler multifunctional chassis for companion planting
InactiveCN101889487AReduce volumeReduce weightEndless track vehiclesAgricultural undercarriagesDrive wheelAgricultural engineering
The invention discloses a small crawler multifunctional chassis for companion planting. The chassis comprises an operator console, a frame, an engine, a crawler running gear, a hydrostatic system, a reduction gearbox and a suspension mechanism, wherein the operator console, the engine and the suspension mechanism are arranged on the frame; the crawler running gear is arranged below the frame and comprises a running crawler and a crawler driving wheel which drives the running crawler; the reduction gearbox is connected with a crawler driving wheel in the crawler running gear; and the hydrostatic system is arranged above the reduction gearbox and connected with an output driving wheel of the engine and the crawler running gear through a belt and the reduction gearbox respectively. The small crawler multifunctional chassis has the advantages of suitability for a companion planting way, flexible and convenient use, convenience for mounting various small agricultural instruments, time and labor saving, great reduction in the labor intensity of farmers, improvement on the production efficiency, small volume, light weight and capability of finishing multiple kinds of operation in companion planting fields and completely avoiding the phenomenon that the rear end of the conventional mini tiller lifts to hurt people in the process of moving backwards.
Owner:SICHUAN AGRI UNIV
Novel high-efficiency haze filtration silver nanowire net and MOFs composite porous fiber film material and preparation method thereof
ActiveCN110075815AImprove filtering effectGood tensile strengthGas treatmentOther chemical processesElectrospinningFilm material
The invention provides a preparation method of a novel high-efficiency haze filtration silver nanowire net and MOFs (metal-organic frameworks) composite porous fiber film material. The preparation method is characterized by comprising the following steps of preparation of silver nanowires, preparation of MOFs, preparation of a spinning precursor solution, preparation of a spinning solution, electrostatic spinning, preparation of suction filtration dispersing liquid and suction filtration and filming. The preparation method has the benefits that the preparation method of the novel high-efficiency haze filtration silver nanowire net and MOFs composite porous fiber film material prepares a composite fiber film by using the silver nanowires in certain diameters and the MOFs in certain particlesizes for doping; pore sizes of the fiber film formed by the spinning are used for filtration; at the same time, lower voltage is applied; particulates are collected by a remote electrostatic force of the silver nanowire; an filtration effect is improved; and since the silver nanowires have a sterilization function, the composite porous fiber film material can achieve a multifunctional haze filtration effect.
Owner:NORTHWEST UNIV
Bogie for A-type broad-gauge metro vehicle
The invention discloses a bogie for an A-type broad-gauge metro vehicle. The bogie comprises a frame, a wheelset and axle box device, a primary suspension device, a secondary suspension device, a central traction device, a foundation brake device, a driving device and a rim lubrication device. The bogie is characterized in that the frame has a large lateral span, the primary suspension adopts a rubber spring, the secondary suspension adopts an air spring, a secondary vertical damper and a horizontal damper to reduce vibration and impact, so that a passenger sits more conformably, two traction rods are adopted between a vehicle body and the bogie for transferring traction and braking force, and the foundation brake device adopts a wheel mounted type disc brake unit. The bogie meets requirements for a Brazil 1A metro project contract, and the bogie for the A-type broad-gauge metro vehicle, which meets requirements for a dual-mode signal system, is researched for the first time; the gauge is 1600 mm and the axle load is 17.5 tons; the bogie has the advantages of high operation quality and convenience for maintenance and can be widely applied to the foreign market.
Owner:CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
Intermediate track and auxiliary device transportation system
ActiveCN102190005AReduce angle of attackReduce track vibration and noiseTrack-braking member co-operationMiddle lineTransit system
The invention discloses an intermediate track and auxiliary device transportation system, which belongs to the technical field of wheeltrack railways and can effectively solve the problems of transverse force, vertical force, starting friction force, braking operation resistance and climbing friction force in the transportation process of a train. In the technical scheme, an intermediate track is established on a median line between a left steel rail and a right steel rail of the conventional wheeltrack railway; a controller device is arranged on the middle lower side of a train bogie wheel shaft or a cross beam; the lower end of the controller device is vertically connected with a hanger device, and the upper end of the controller device is provided with a damping device; a lifting frame wheel shaft which is arranged on the middle upper side of the intermediate track and is extended from a bogie pulling motor rotating shaft gear and a bogie wheel shaft gear is provided with a starting wheel, a braking wheel 1 and a braking wheel 2; and a brake caliper device is arranged in front of the starting wheel or the braking wheel 2 or behind the braking wheel 1. The technical scheme has extremely prominent effects of improving the safety, the speed and the benefit of the train during operation, preventing the wheel / track from abrasion, and the like.
Owner:张发林
Hinging-type dump truck chassis
PendingCN107963132AReduce weightGuaranteed weightBraking action transmissionUnderstructuresVehicle frameEngineering
The invention discloses a hinging-type dump truck chassis. The hinging-type dump truck chassis comprises a steering system, a braking system, a drive system and a driving system, wherein the driving system comprises a truck frame assembly, the truck frame assembly comprises a front truck frame, a hinging body and a rear truck frame, a front axle is arranged below the front truck frame, a middle axle and a rear axle are arranged below the rear truck frame, one end of a left front hydro-pneumatic suspension unit and one end of a right front hydro-pneumatic suspension unit are connected to the upper surfaces of the left side and the right side of the front axle respectively, the other end of the left front hydro-pneumatic suspension unit and the other end of the right front hydro-pneumatic suspension unit are connected with the front truck frame, a right front cross pull rod, a front V rod and a left front cross pull rod are installed between the front truck frame and the front axle, themiddle axle is connected with the rear axle through a left balancing beam and a right balancing beam, a right middle cross pull rod, a middle V rod and a left middle cross pull rod are installed between the rear truck frame and the middle axle, and a right rear cross pull rod, a rear V rod and a left rear cross pull rod are installed between the rear truck frame and the rear axle. The hinging-typedump truck chassis is simple in structure, safe and reliable, and can effectively improve the trafficability and the comfort of the complete machine.
Owner:XUZHOU XCMG MINING MACHINERY CO LTD
Multifunctional all-terrain transportation robot
PendingCN111284582AGood passabilityStrong load capacityElectric propulsion mountingVehiclesAutomotive engineeringTransportation technology
The invention provides a multifunctional all-terrain transportation robot, and belongs to the technical field of transportation. The problem that an existing transportation robot is poor in obstacle crossing capacity is solved. The multifunctional all-terrain transportation robot comprises a chassis and wheel assemblies, a tilting shaft horizontally extending in the left-right direction is arranged on the chassis, a goods shelf capable of swinging around the central axis of the tilting shaft is arranged on the tilting shaft, a gravity center adjusting assembly used for changing the tilting angle of the goods shelf is arranged on the goods shelf, and an auxiliary assembly used for supporting the goods shelf and realizing auxiliary obstacle crossing during obstacle crossing is further arranged on the goods shelf. The robot has the advantages of being high in obstacle crossing capacity, wide in application range and the like.
Owner:行星算力(深圳)科技有限公司
Waterproof grinding head motor
ActiveCN104283361AReduce passabilityAvoid corrosionSupports/enclosures/casingsEngineeringGrinding wheel
The invention provides a waterproof grinding head motor which comprises a machine shell, a stator iron core and a rotor, wherein the stator iron core is arranged in the machine shell and provided with a winding, and the rotor is arranged in the stator iron core and is supported by a motor rotary shaft. The front end of the machine shell is connected with a front end cover, the front end of the motor rotary shaft penetrates out of the front end cover, the front end of the motor rotary shaft is fixedly provided with a grinding wheel base, waterproof gaps exist between the grinding wheel base and the end face opposite to the front end cover, the waterproof gaps sequentially comprise a first vertical gap, a maze matching gap, a second vertical gap, a slope gap and a vertical seam allowance matching gap from inside to outside in the radial direction, the width of the vertical section of the seam allowance matching gap and the width of the vertical section of the maze matching gap are 0.1-0.2 mm, the bottom of the slope gap is located on the grinding base side, and the top of the slope gap is on the front end cover side. Waterproof performance of the shaft end of the grinding head motor is improved, water is prevented from entering the inside of the motor and corroding parts, and the service life of the parts of the motor is prolonged.
Owner:SHANGHAI CDQC ELECTRIC
Zigzagging carbon-free vehicle based on magnetic steering mechanism
InactiveCN108114482ALower center of gravityReduce uncertaintyToy gearsToy vehiclesCircular discVehicle frame
The invention relates to a carbon-free vehicle zigzagging in variable distance. The vehicle includes a vehicle frame, a driving device and a magnetic steering device. The magnetic steering device is installed on a driving shaft. Two semicircular magnets identical in shape but opposite in polarity are embedded in two disc-shaped magnet brackets respectively, and the magnet brackets are totally staggered and fixed to the driving shaft. The magnet brackets achieve periodical change of a magnetic field through rotation of the driving shaft to control the vehicle to steer. The vehicle frame is internally provided with an upper chassis mechanism and a lower chassis mechanism. The vehicle can achieve change of the distance between an upper chassis and a lower chassis by adjusting adjustment bolts, and therefore the gravity center of the vehicle is changed. The steering mechanism of the vehicle is simple, the in-vehicle space is greatly saved, and friction is significantly reduced at the sametime; the energy is saved, and meanwhile the mechanical performance of the vehicle is further improved. The upper and lower chassis mechanisms can freely adjust the gravity center of the vehicle, correspondingly the stability of the vehicle is improved, and a series of problems that the vehicle is likely to turn over and slip due to large inertia of the vehicle are solved.
Owner:NORTHWEST A & F UNIV
Shock absorber convenient to install for bullet train
The invention relates to the field of shock absorbers for bullet trains, in particular to a shock absorber convenient to install for a bullet train. The shock absorber comprises a main body, a wrapping mechanism, a pin tightening mechanism, a non-return mechanism, a rotating mechanism and a fixing mechanism. Through the arrangement of the wrapping mechanism, the main body can conveniently offset part of eccentric force formed in the movement process while stretching out and drawing back, stable operation of the bullet train is facilitated, through the arrangement of the non-return mechanism, the non-return effect can be achieved on rotation of parts in the wrapping mechanism according to needs, through the arrangement of the rotating mechanism, more labor is saved during rotation, operation can be conducted in a small space, the using effect of the shock absorber is improved, through the arrangement of the pin tightening mechanism, the installation process can be simpler, faster, time-saving and labor-saving, the installation or replacement efficiency is improved, through the arrangement of the fixing mechanism, the main body is installed on a beam column more firmly, the replacement process is simple, and the replacement efficiency is further improved.
Owner:日照鸿钰电器有限公司
Frame structure of collecting net for bottom-layer organisms in seamounts area
PendingCN111727941AReduce contact areaImprove collection success rateFishing netsWithdrawing sample devicesStructural engineeringSeabed sediment
The invention relates to a frame structure of a collecting net for bottom-layer organisms in a seamounts area. The frame structure of the collecting net for the bottom-layer organisms in the seamountsarea comprises a collecting net frame, wherein the collecting net frame is of a groove-shaped structure and comprises two side frames; the side frames are used as supporting edges of the collecting net frame; the front end of each side frame is arc-shaped; the front end of each side frame and the bottom surface of the side frame form an arc-shaped surface in smooth transition; the edges of the corners of the rear ends of the side frames are rounded; reinforcing plates are arranged between an upper plate and a lower plate of each side frame; the two side frames are connected by three connecting plates; a net opening upper steel support is also arranged between the two side frames; a net opening side steel support is also arranged between the upper steel plate and the lower steel plate of each side frame; the net opening upper steel support and the net opening side steel supports form a U-shaped frame; and the U-shaped frame is positioned at the front end of the collecting net frame. The frame structure of the collecting net for the bottom-layer organisms in the seamounts area has the advantages that the contact area between the collecting net and the seabed is reduced by the two side frames, obstacle crossing is facilitated, the success rate of bottom-layer organism collection is improved, the frame structure of the collecting net for the bottom-layer organisms in the seamountsarea adapts to sampling of the bottom-layer organisms in different seabed sediment environments, and the sediment environments are well protected.
Owner:EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
Road intersection
The invention belongs to the field of traffic construction. A road intersection comprises left-turn hairpin roads, passages, traffic lanes, traffic lights, signs and traffic lines. According to the left-turn hairpin, a turn hairpin curve road is arranged at each upper right corner of the road intersection, and left-turn lanes in a conventional intersection are canceled. A vehicle to turn left can pass by the road intersection and then turn right into the left-turn hairpin road so as to enter the left-turn road. The invention provides a method of reducing traffic conflict points at an intersection and raising traffic safety and trafficability by simple reconstruction of a road intersection.
Owner:吴钦凡
Low-noise amplifier chip of W-band filterable structure
PendingCN112953407AReduce passabilityReduce areaAmplifier modifications to reduce noise influenceCapacitanceLow noise
The invention designs a low-noise amplifier chip of a W-band filterable structure, and the chip comprises a GaAs substrate; a first-stage amplification circuit and a second-stage amplification circuit are arranged on the GaAs substrate; the first-stage amplification circuit and the second-stage amplification circuit are cascaded, and the first-stage amplification circuit comprises an input GSG (Ground-Single-Ground), an input matching circuit, a T-type matching circuit, a gate bias circuit, a resistor-capacitor parallel filter circuit, a first GaAs FET tube group, a GaAs FET tube group source series inductance grounding structure, the other T-type matching circuit and a drain bias circuit from the left to the right; The second-stage amplification circuit is similar to the first-stage amplification circuit. And the first-stage amplification circuit is connected with the second-stage amplification circuit through an inter-stage matching circuit. The invention aims to overcome the defects in the prior art, provides a low-noise amplifier chip of a W-band filterable structure, and provides an RC parallel structure compared with a conventional chip structure, so low-frequency signals can be well inhibited, and the filtering effect is achieved.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY
Front-rear-rack hinge-connecting device for small-sized wheel type loading machine
InactiveCN104563188AImprove stability andExcellent stabilitySoil-shifting machines/dredgersTowing devicesVehicle frameHinge angle
The invention discloses a front-rear-rack hinge-connecting device for a small-sized wheel type loading machine. The front-rear-rack hinge-connecting device comprises a front rack (1) and a rear rack (2), wherein a group of front rack upper in plates (3) is arranged on the front rack; a group of rear rack upper in plates (4) is arranged on the rear rack; pin holes are respectively formed in the front rack upper pin plates and the rear rack upper pin plates, upper pin shafts are respectively assembled in the pin holes. The front-rear-rack hinge-connecting device is characterized in that a position between the two upper pin roller is assembled with a hinge-connecting rod (6) through an upper joint bearing (8), wherein a front rack lower pin roll fixing plate (12) is arranged on the lower part of the front rack, a rear rack lower hinged fixing plate (9) is arranged on the lower part of the rear rack; a lower pin roll (11) is assembled on the front rack lower pin roll fixing plate; a lower joint bearing (10) on the lower pin roll (11) is assembled with the rear rack lower hinged fixing plate (12) in a matched manner. The front-rear-rack hinge-connecting device has the advantage that the gravity center of the rear rack is lowered, the stable performance of the whole vehicle is excellent, the passing-through performance is good, a shaking bracket can be cancelled, the cost is lowered and the reliability is improved.
Owner:王金科
Battery pack impact resistance structure device based on shear thickening material
The invention relates to a battery pack impact resistance structure device based on a shear thickening material. DST material stuffing is arranged on the inner layer. A soft rubber device bag is arranged on the outer layer of the stuffing, and the stuffing is prevented from leaking. A hard rubber protective sleeve is arranged on the outer layer of the soft rubber device bag. The two ends of the hard rubber protective sleeve are connected with an automobile frame through bolts. The viscosity of the DST material used in the battery pack impact resistance structure device is rapidly increased along with the increase of the shearing rate. Under the high-rate impact, the rigidity of the material is higher; and when the battery pack impact resistance structure device passes through an obstacle at a low speed, the material shows a shear thinning phenomenon and is fluid so as to deform properly, and the passing ability of an automobile is improved.
Owner:BEIHANG UNIV
Multimodal Rigid-Flexible Composite Snake Robot Device
InactiveCN105773594BAchieve freedomReduced flexibilityProgramme-controlled manipulatorVehiclesTerrainDrive wheel
The invention belongs to the technical field of robots and discloses a multi-mode rigidity and flexibility combined snake-like robot device. The multi-mode rigidity and flexibility combined snake-like robot device comprises a plurality of snake-like robot unit modules which are connected in series, every two adjacent snake-like robot unit modules are connected, and each snake-like robot unit module comprises two frameworks, three motors, a plurality of transmission mechanisms, a plurality of shafts, a plurality of wheels, a plurality of sets of belt wheel mechanisms, a plurality of driven wheels provided with one-way bearings, and the like. The multi-mode rigidity and flexibility combined snake-like robot device can travel in multiple modes, not only can directly move like a multi-section car, but also can rapidly move in the narrow terrain by abutting against the wall and rapidly move in a snake-like mode on the wide ground, and is high in terrain adaptability. The multi-mode rigidity and flexibility combined snake-like robot device has a plurality of degrees of freedom, and is good in flexibility, small in cross section, good in trafficability characteristic, simple in structure and easy to control.
Owner:TSINGHUA UNIV
Pulley device for reducing friction of paying-off construction
InactiveCN109510104AAvoid damageEasy to assemble and disassembleApparatus for overhead lines/cablesEngineeringPulley
The invention relates to a pulley device for reducing friction of paying-off construction. The pulley device comprises a lifting plate, lifting frames, a main shaft, pulleys and ferrules, wherein bothsides of the lower end of the lifting plate are symmetrically provided with the lifting frames, a main shaft is mounted in the middle parts of the lifting frames on two sides, a plurality of the pulleys are threaded on the main shaft coaxially side by side, an annular groove is formed in the outer circumference of each pulley, one ferrule is sleeved in the corresponding annular groove, the ferrules can rotate in the grooves of the pulleys, and the lifting plate is erected on the ferrules by means of lead wires or traction ropes of the pulleys. The pulley device can effectively improve the construction efficiency, is not affected by the self-weight and damage degrees of the pulleys, is convenient to install and disassemble, and significantly reduces the risk of damaging the pulleys, the operation risk and the construction safety risk. The pulley device further has the effects of being low in manufacturing cost, reusable, economical, beautiful and practical.
Owner:TIANJIN ELECTRIC POWER TRANSMISSION & TRANSFORMATION ENG CORP +2
Secondary-primary-hinge structure artillery
InactiveCN109059642AStrong tactical mobilityActiveMechanical machines/dredgersLaunching weaponsVehicle frameSelf-propelled gun
The invention discloses secondary-primary-hinge structure artillery and belongs to artillery of a novel structure. In order to solve the problems that towed artillery is poor in tactical mobility, long in emplacement and raising time and prone to being attacked by enemy counterbattery fire, self-propelled guns are complicated in structure, high in maintenance difficulty and price and poor in strategic mobility, and truck guns are small in firing area, a secondary-primary-hinge structure is adopted, and a secondary hinge and a primary hinge are both mounted on a hinge shaft, connected in a hinged mode and located in the same tangential direction of the hinge shaft; the secondary hinge is in a shape of a hollowed-out part of the primary hinge; the secondary hinge can rotate around a centralshaft and can be embedded into the primary hinge, thus, the complete secondary-primary-hinge structure is formed, and the normal opening and closing effect of the secondary hinge and the primary hingeare achieved; the secondary hinge is used as a gun carriage for mounting artillery and a spade; the primary hinge is used as a vehicle frame for mounting an engine, wheels and a soil spade and is a carrier of the secondary-primary-hinge structure artillery; and the problems are successfully solved through the secondary-primary-hinge structure.
Owner:王富云
A Composite Air Suspension System Without Matching Thrust Rods
ActiveCN110539601BAvoid the risk of cracking due to excessive local forceReduced risk of crackingUnderstructuresResilient suspensionsVehicle frameAir spring
A combined type air suspension system without a thrust bar comprises a vehicle frame, a vehicle axle, a guide arm and a vehicle frame transverse beam. One end of the guide arm is connected with the vehicle frame through a guide arm support, and the other end of the guide arm is connected with an air spring through an air spring transverse beam. The end of the vehicle frame transverse beam is connected with the guide arm support through the vehicle frame. The guide arm is located below the vehicle axle. An upper cover plate and a lower cover plate are arranged on the upper side and the lower side of the vehicle axle. A U-shaped bolt strides over the upper cover plate, the lower cover plate and the guide arm in sequence and then is connected with a U-shaped bolt base plate. The lower cover plate is connected with a shock absorber, two lug plates are symmetrically arranged on the two side faces of the lower cover plate, and adjusting bolts are arranged on the lug plates and abut against the guide arm. A large gasket is arranged on the portion, connected with the guide arm support, of the guide arm. By the adoption of the design, the vehicle frame crack risk and the cost are reduced, the trafficability is improved, the steering performance is guaranteed, the tire abrasion is reduced, and the abrasion of the guide arm support can be avoided.
Owner:DONGFENG COMML VEHICLE CO LTD
Sowing equipment and sowing agronomy
ActiveCN111066424BSimple structureGround pressure adjustablePlantingFurrow making/coveringAgricultural engineeringSoil structure
Owner:黑龙江丰沃非凡农业科技发展有限公司
Automatic wire cutting equipment
The invention belongs to the field of wire cutting equipment, and particularly relates to automatic wire cutting equipment. The automatic wire cutting equipment includes a support; a clamping plate is fixedly connected to the lower surface of the support; and a wire cutting mechanism is slidably connected to the upper surface of the clamping plate, and includes a guide mechanism. According to the automatic wire cutting equipment, a guide plate is arranged, and is of an arc-shaped structure, a cylindrical wire can be clamped on the upper surface of the guide plate, in the moving process of the wire, rolling wheels in fixing strips make contact with the outer surface of the wire, friction force borne by the outer surface of the wire is converted into rolling friction from sliding friction, friction resistance is reduced, and friction loss borne by the outer surface of the wire is reduced; and under the limitation of the guide plate and the two fixing strips, the lower surface of the wire is subjected to three-point positioning, the wire is forced by gravity to be tightly attached to the upper surface of the guide plate all the time, it is guaranteed that the wire can stably, smoothly and continuously move, and the problem that before a traditional wire is cut, the wire is prone to deviation is solved.
Owner:南通林慧机械设备制造有限公司
Novel haze efficient filtering silver nanowire net and mofs composite porous fiber membrane material and its preparation method
ActiveCN110075815BImprove propertiesReduce size effectGas treatmentOther chemical processesSpinningElectrospinning
The invention provides a method for preparing a novel smog efficient filtering silver nanowire network and MOFs composite porous fiber membrane material, which is characterized in that it comprises the following steps: preparation of silver nanowires, preparation of MOFs, preparation of spinning precursor solution Preparation, preparation of spinning solution, electrospinning, preparation of dispersion by suction filtration, coating by suction filtration. The beneficial effect of the present invention is that: the preparation method of a novel smog efficient filtering silver nanowire network and MOFs composite porous fiber film material of the present invention utilizes silver nanowires of a certain diameter and MOFs of a certain particle size for doping preparation Composite fiber membranes use the pore size of the fiber membranes formed by spinning to filter, and at the same time, by applying a small voltage, the remote electrostatic force of silver nanowires is used to collect particles and improve the filtering effect, and because silver nanowires themselves have a bactericidal function , so it can achieve the effect of multi-functional filtering haze.
Owner:NORTHWEST UNIV
A kind of automatic thread cutting equipment
The invention belongs to the field of thread-cutting equipment, and is specifically an automatic thread-cutting equipment, including a bracket; the lower surface of the bracket is fixedly connected with a clamping plate, and the upper surface of the clamping plate is slidably connected with a thread-cutting mechanism. The thread cutting mechanism includes a guiding mechanism. The automatic wire trimming equipment is equipped with a guide plate. Since the guide plate is an arc structure, the cylindrical wire can be stuck on the upper surface of the guide plate. During the movement of the wire, the roller inside the fixed bar contacts the outer surface of the wire, and the wire The friction force on the outer surface is converted from sliding friction to rolling friction, the friction resistance is reduced, and the friction loss on the outer surface of the wire is reduced. Under the restriction of the guide plate and two fixing bars, the lower surface of the wire is positioned by three points , Gravity forces the wire to always stick to the upper surface of the guide plate, ensuring the smooth and continuous movement of the wire, which solves the problem that the traditional wire is easy to deviate before cutting.
Owner:南通林慧机械设备制造有限公司
A horizontal split multistage pump capable of transporting multiphase flow media
ActiveCN102606483BFlow head curve is flatWide range of workPump componentsRadial flow pumpsImpellerHigh concentration
A horizontal central-open multistage pump capable of conveying multiphase flow media comprises a pump body, a pump cover, a pump spindle, a transition runner composed of a pump body and a pump cover, a water suction chamber, an impeller of a special structure and the like. No real blade is arranged between a driving impeller cover plate and a driven impeller cover plate, waves of special types are peripherally processed to be positioned between the driving impeller cover plate and the driven impeller cover plate, the waves are sine waves or cosine waves, and the driving impeller cover plate and the driven impeller cover plate are connected through connection arms. The horizontal central-open multistage pump is applied to long distance transporting multiphase flow medium places containing high viscosity media, media carrying a lot of gas, media containing high concentration solid phase particles, and media sensitive to shear force and the like and has the advantages of being anti-cavitation, abrasion-resistant, efficient, reliable, convenient to dismount, small in loss of water power, little in installation error and the like.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
A distributed off-road vehicle powertrain heat exchange system and its control method
The invention relates to a distributed off-road vehicle powertrain heat exchange system and its control method. The rapid response of the fan drive is controlled by a wading induction device to realize system protection so as to keep the performance of the whole vehicle from attenuating and improve the survivability in complex environments. . Multiple sets of control strategies are stored in the controller to realize intelligent or manual switching of working conditions such as no-load, medium-load, heavy-load, and climbing to improve power performance; through PID closed-loop control, the best working conditions of each heat exchanger, Ensure that the engine intake air temperature / air intake volume, coolant temperature, and engine oil temperature are in the best state, thereby greatly reducing fuel consumption and system noise, and improving engine performance and vehicle replenishment cycle.
Owner:NANJING AUTOMOBILE GROUP CORP +1
Image processing method, image processing device, image processing equipment and computer-readable storage medium
ActiveCN108399607AImplement suppression processingPassability in high frequency domainImage enhancementImage analysisTime domainPattern recognition
The disclosure relates to an image processing method, an image processing device, image processing equipment and a computer-readable storage medium. The method includes: converting to-be-processed image signals to a frequency domain to obtain initial frequency-domain signals; obtaining an asymmetric weighting matrix according to an original-target antenna pattern function and a fuzzy-target antenna pattern function; carrying out asymmetric weighting processing on the initial frequency-domain signals according to the asymmetric weighting matrix; and converting the frequency-domain signals afterasymmetric weighting to a time domain to obtain asymmetrically weighted image signals.
Owner:BEIHANG UNIV
A method and system for optimizing train stops on a rail transit line
ActiveCN107958316BSave travel timeReduce passabilityForecastingGenetic algorithmsTraffic capacitySimulation
The present invention is applicable to the technical field of rail transit and provides a train stop optimization method for rail transit lines, which includes: obtaining the passenger flow characteristics of the line to be optimized, and judging whether the line to be optimized satisfies the conditions for running fast and slow trains based on the passenger flow characteristics; If satisfied, collect the basic information of the line to be optimized; process the basic information to obtain an optimization matrix including line station spacing, interval operation time table and one-way traffic volume data during the optimization period; input the optimization matrix In the optimization model, a genetic algorithm is used to solve the approximate optimal solution of the optimization model to obtain an express train stopping plan, and the express train stopping plan is used to optimize the line to be optimized. Through the embodiments of the present invention, the travel efficiency of passengers can be improved, and the passenger flow along the line can be induced. Under large and small traffic conditions, the turnover rate of the vehicle bottom can be shortened, the number of vehicle bottoms used on the line can be reduced, and the operating cost can be reduced.
Owner:SHENZHEN TECH UNIV
Forklift gantry
The invention relates to a forklift gantry which comprises four classes of gantries and a goods fork frame, wherein two rear lifting oil cylinders are uniformly distributed on a connecting plate of the first class gantry, and the piston rod ends of the rear lifting oil cylinders are connected with the second class gantry; a second class chain wheel, a second class chain, the second class gantry and the first class gantry form a moving chain wheel group; the third class chain wheel, the third class chain, the second class gantry and the highest class gantry form a moving chain wheel group; and the third class gantry and the highest class gantry are pulled by the chains to move relative to the first class gantry under the interaction of the rear lifting oil cylinders and the chains. Front lifting oil cylinders are uniformly distributed on the highest class gantry; the piston rod ends of the front lifting oil cylinders are provided with two chain wheels; and one ends of the two chains matched with the chain wheels are connected with the highest class gantry, and the other ends are connected with the rear part of the goods fork frame. The chain wheels, the chains, the highest class gantry and the goods fork frame form a moving chain wheel group; and the goods fork frame can move relative to the highest class gantry. The four groups of gantries are compactly distributed and are basically distributed in parallel, thereby ensuring minimal front suspension and favorable visual field.
Owner:ANHUI HELI CO LTD
Catheter device for neurosurgery interventional operation
The invention discloses a neurosurgery interventional operation catheter device which comprises a working box, a support is fixed to the bottom of the working box, a base is fixed to the bottom of the support, a partition plate is fixed to the inner wall of the working box, and a first catheter and a second catheter are inserted into the upper end of the working box in a penetrating mode. The first guide pipe and the second guide pipe are jointly communicated with a drainage pipe, the end of the drainage pipe is connected with a speed control box, the bottom of the speed control box is connected with a drainage head, a flow speed regulation and control mechanism is arranged in the speed control box, and a pressure meter and a pressure sensor are arranged on the side wall of the working box. The drainage device has the advantages that drainage of the two areas in the working box is carried out alternately, accumulated liquid is discharged in time, continuous drainage operation can be achieved, the drainage efficiency is greatly improved, it is guaranteed that the drainage pressure of each time is the same, and therefore discomfort and even injury caused by changes of the drainage pressure to a patient are avoided; therefore, the drainage effect is improved.
Owner:THE FIRST AFFILIATED HOSPITAL OF ANHUI MEDICAL UNIV
Method, device, device, and computer-readable storage medium for suppressing image orientation blur
ActiveCN108399607BImplement suppression processingPassability in high frequency domainImage enhancementImage analysisTime domainEngineering
The present disclosure relates to a method, device, equipment and computer-readable storage medium for suppressing image orientation blur. The method includes: converting the image signal to be processed into the frequency domain to obtain an initial frequency domain signal; obtaining an asymmetric weight matrix according to the original target antenna pattern function and the fuzzy target antenna pattern function; according to the asymmetric weight matrix, performing asymmetric weighting processing on the initial frequency domain signal; converting the frequency domain signal after the asymmetric weighting processing to a time domain to obtain an asymmetrically weighted image signal.
Owner:BEIHANG UNIV
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