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34results about How to "Reliable guidance" patented technology

Photovoltaic shielding type and degree diagnosis method based on I-V curve and deep learning

The invention discloses a photovoltaic shielding type and degree diagnosis method based on an I-V curve and deep learning. The method comprises the following implementation steps: (1) collecting I-V curve data of a photovoltaic string; (2) carrying out preprocessing and image coding on the acquired I-V curve data; (3) a double-flow deep neural network is adopted to diagnose the photovoltaic shielding type; and (4) estimating the shielding severity by combining a photovoltaic shielding diagnosis result and the mechanism model. The method can be used for solving the problem that the specific type and degree cannot be diagnosed in photovoltaic shielding detection, and is beneficial to adopting an effective power optimization method and an operation and maintenance strategy.
Owner:SHENZHEN RESEARCH INSTITUTE OF SOUTHEAST UNIVERSITY

Composite power switching type tramcar

The invention discloses a composite power switching type tramcar which comprises a track, a cruise car is arranged on the track, the cruise car is rotationally connected with a main driving rotating rod extending out of the cruise car, traveling wheels are fixed to the two ends of the main driving rotating rod, and the track comprises a straight track, a turning track and a climbing track. The cruise vehicle is provided with a power driving structure for driving a cruise vehicle main driving rotating rod to rotate, the power driving structure drives the cruise vehicle to run on a straight track, the turning power switching structure is installed in the cruise vehicle and drives the cruise vehicle to run on a turning track, and the turning power switching structure is matched with the power driving structure; a climbing power switching structure for driving the cruising vehicle to run on the climbing track is further mounted in the cruising vehicle, and the climbing power switching structure is matched with the power driving structure; a turning power switching structure and a climbing power switching structure are introduced, and the risks of collision, slipping and rail deviation are reduced by providing stable turning and climbing functions.
Owner:XIANGTAN NANFANG ELECTRIC LOCOMOTIVE MFG CO LTD

All-terrain vehicle frame with power battery pack having emergency separation function and assembly process

The invention relates to the technical field of all-terrain vehicles, and discloses an all-terrain vehicle frame with a power battery pack having an emergency separation function and an assembly process of the all-terrain vehicle frame. The battery body is connected with a vehicle frame through the emergency separation type damping mounting structure, and the mounting structure comprises a connecting assembly and two sets of locking structures. Wherein the locking execution assembly is provided with an elastic locking piece and a penetrating connecting rod, the driving assembly comprises a rotating pressing piece, a pressing rod and an anti-collision rod, and the anti-collision rod is integrated with a vehicle body side covering piece and is provided with a prefabricated breaking point. The invention further provides a corresponding assembly process which comprises the four steps of connecting assembly preassembling, buffer system installing, locking mechanism assembling and battery body installing, and the assembly quality is ensured by controlling parameters such as specified torque, pre-compression amount and pre-pressure. Through the emergency separation type damping installation structure and the integrated anti-collision design, the safety and the structural stability of the frame are improved.
Owner:浙江永途动力科技有限公司

Method, device and equipment for voiceprint recognition system to resist attack and medium

The invention discloses a voiceprint recognition system attack resisting method and device, equipment and a medium, by constructing a shadow voice sample set and a substitution model, dependence on target speaker data and query capability is reduced, and privacy risk and query overhead are reduced; meanwhile, two types of substitution models are trained based on an information theory method, so that the mobility and stability of the models are improved, and the generalization ability is enhanced; besides, the attacker model adopts a specific architecture and combines an alternate training strategy, so that attack loss and prediction probability difference are optimized, imperceptibility and attack effectiveness are balanced, and tone quality reduction or attack failure is avoided; and finally, through systematic training and optimization, a more uniform evaluation caliber is expected to be provided, and more reliable guidance is provided for engineering landing and risk evaluation.
Owner:GUIZHOU UNIV

I-beam follow-up welding device

ActiveCN224737544Ucontinuous orientationstable support
The utility model relates to tunnel arch frame technical field more specifically, and more specifically, relates to a I -beam follow -up welding device. Including the welding frame subassembly, mobile guide rail and automatic lifting carrier roller, the welding frame subassembly includes the welding fixed frame, welding robot and follow -up mobile wheel, and two groups are provided to the welding fixed frame side -by -side, and the both sides of two welding fixed frames are provided with the rack, and the welding robot is arranged on both sides rack setting, and the welding robot is located between two welding fixed frames, and the bottom of welding fixed frame is provided with follow -up mobile wheel, and the welding fixed frame is set up through follow -up mobile wheel on the mobile guide rail and slides, and the automatic lifting carrier roller is provided with multiple groups in the mobile guide rail. The device significantly reduces the artificial cost and the hidden danger, and the mobile welding does not affect the subsequent process completely, and the beat is optimized, and the overall operation efficiency of the assembly line is improved greatly, and the purpose of reducing the labor cost and improving the industrial efficiency is further reached. The utility model mainly applies to I -beam follow -up welding.
Owner:2ND ENG CO LTD OF CHINA RAILWAY 12TH BUREAU GRP +3

A pumped storage power station economic benefit analysis method based on diversified market transactions

PendingCN122288775Afull and true reflectionEnhance the ability to respond to the marketPower stationBenefit analysis
This invention belongs to the technical field of pumped storage power station benefit analysis. It discloses a method for analyzing the economic benefits of pumped storage power stations based on diversified market transactions. The method includes: obtaining a structured market time series table, obtaining a detailed report on electricity revenue, obtaining an ancillary service revenue assessment report, obtaining a carbon market revenue report, obtaining a green value revenue analysis report, integrating the detailed report on electricity revenue, the ancillary service revenue assessment report, the carbon market revenue report, and the green value revenue analysis report, allocating the power station's public costs, obtaining a multi-market revenue and cost summary report, obtaining a net benefit sensitivity analysis report, and obtaining a comprehensive power station assessment and decision report, which are then output. Overall, this invention has significant advantages such as comprehensive benefit assessment, high accuracy in calculating net benefits from various markets, and reliable role in power station economic benefit analysis.
Owner:CHINA SOUTH-TO-NORTH WATER DIVERSION GROUP NEW ENERGY INVESTMENT CO LTD

An automatic tool breakage detection device for machining centers

ActiveCN224701702Ueasy to operateEasy to fix
This utility model discloses an automatic tool breakage detection device for a machining center, comprising a machining center body. An operation button is located on the left side of the front of the machining center body, and a display panel is located on the right side of the front of the machining center body. A machining groove is formed on the front of the machining center body, and a lifting hydraulic cylinder is located above the inner wall of the machining groove. This utility model, through the cooperation of a movable frame, a forward and reverse motor, a lead screw, and a nut seat, enables the movable frame to follow the position of the drill bit, ensuring that the infrared transmitter and infrared receiver are always in the appropriate position for tool breakage detection. Once the drill bit breaks, the infrared receiver receives an infrared signal, immediately triggering a buzzer alarm and an alarm light, promptly alerting the operator and preventing continued machining with the broken tool. This effectively improves workpiece machining quality, reduces scrap rate, lowers production costs, increases processing efficiency, and ensures smooth production.
Owner:YUXI MINGDE INTELLIGENT MASCH CO LTD

Cable take-up and pay-off guide device for ocean exploration

The utility model relates to the technical field of cable take-up and pay-off, and discloses a cable take-up and pay-off guide device for ocean exploration, which comprises an inverted n-shaped plate, two sliding rods are fixedly mounted in the inverted n-shaped plate, square movable sleeves are movably sleeved on the surfaces of the two sliding rods, a fixed plate is fixedly mounted between one ends of the two square movable sleeves, and a plurality of guide rods are fixedly mounted on the fixed plate. A vertical sliding groove is formed in the middle of the fixing plate, an I-shaped sliding block is installed in the vertical sliding groove, a rotating shaft is rotationally connected to the middle of the I-shaped sliding block, a gear is fixedly connected to one end of the rotating shaft, a groove is formed in the middle of the inner side of the inverted-n-shaped plate, a fixing pin is fixedly installed in the middle of the groove, and the gear is installed on the surface of the fixing pin in a rolling mode. According to the cable winding and unwinding guide device, stable and effective reciprocating motion guide can be conducted on the cable, so that the cable can be evenly distributed and wound on the winding wheel, and the winding attractiveness of the cable is improved.
Owner:TRUST-K CORDAGE MFG IND CO LTD

Guider for piling H-shaped precast pile

The utility model relates to a guider for piling an H-shaped precast pile, which comprises a first pile clamping guide arm and a second pile clamping guide arm which are rotatably mounted on a pile driver and are transversely and oppositely arranged. A first pile clamping installation part and a second pile clamping installation part are arranged at the front end of the first pile clamping guide arm and the front end of the second pile clamping guide arm correspondingly, the first pile clamping guide arm and the first pile clamping installation part are arranged in an L shape, and the second pile clamping guide arm and the second pile clamping installation part are arranged in an L shape. A first pile clamping guide wheel and a second pile clamping guide wheel which are rotationally installed are arranged at the front end of the first pile clamping installation part and the front end of the second pile clamping installation part correspondingly, the axis directions of the first pile clamping guide wheel, the second pile clamping guide wheel, the first pile clamping guide arm and the second pile clamping guide arm are all consistent with the direction F1, and the direction F1 is the length direction of the first pile clamping guide arm. The first pile clamping guide arm and the second pile clamping guide arm are connected with a rotation adjusting assembly for adjusting the first pile clamping guide arm and the second pile clamping guide arm to rotate. According to the technical scheme provided by the utility model, the H-shaped precast pile can be reliably guided, and the piling quality and piling efficiency of the H-shaped precast pile are improved.
Owner:ANHUI HENGKUN FOUNDATION ENG CO LTD

Transformer shell pipeline protection framework

The invention discloses a transformer shell pipeline protection framework, and relates to the technical field of transformer shell framework structures. Comprising a framework body installed in a transformer shell, and a pipeline protection assembly is arranged on the side face of the framework body; the pipeline protection assembly comprises a first spherical arc-shaped piece, a second spherical arc-shaped piece and a third spherical arc-shaped piece, wherein an arc-shaped sliding cavity is formed in the first spherical arc-shaped piece; and the second spherical arc-shaped piece is movably installed in the arc-shaped sliding cavity, and the second spherical arc-shaped piece can slide out of one end of the arc-shaped sliding cavity and then is inserted into the other end of the arc-shaped sliding cavity. By arranging the pipeline protection assembly, during assembling, a pipeline can be installed in the first spherical arc-shaped piece, and the second spherical arc-shaped piece is rotated to slide out of one end of the arc-shaped sliding cavity and then is inserted into the other end of the arc-shaped sliding cavity, so that a closed-loop structure is formed by the second spherical arc-shaped piece and the first spherical arc-shaped piece; and then the second spherical arc-shaped piece is ejected and fixed through the ejection column, and therefore local coating and limiting of the pipeline are achieved.
Owner:DONGGUAN RUIGUAN ELECTRONICS CO LTD

Feeding device for polysaccharide food extraction production

The utility model discloses a feeding device for polysaccharide food extraction production, which relates to the technical field of polysaccharide extraction, and comprises a feeding component, when a lifting hopper obliquely moves upwards along with a conveying belt, a guide rail frame plate is in contact with rollers arranged on two sides of the lifting hopper, so that the movement of the lifting hopper can be guided and limited, and the feeding component is used for feeding the polysaccharide food. The lifting hopper keeps a stable track in the moving process, when materials in the lifting hopper are not evenly distributed, the gravity center of the lifting hopper shifts and inclines towards one end, the guide rail frame plates can limit the two ends of the lifting hopper, and therefore the situation that a conveying belt deforms due to the fact that the lifting hopper inclines is avoided; the conveying belt is well protected, meanwhile, scattering of raw materials is avoided, reliable guiding and limiting are provided for lifting the hopper, it is ensured that the hopper stably runs in the conveying process, scattering of polysaccharide food raw materials caused by shaking of the hopper is avoided, the stability of material conveying is improved, and raw material waste is reduced.
Owner:HUNAN FOOD & DRUG VOCATIONAL COLLEGE

A mylopharyngodon piceus parentage identification marker system combining ssr and snp and application thereof

PendingCN122588258AHigh identification accuracyPerfect family identification
This invention discloses a combined SSR and SNP marker system for grass carp parentage identification and its application, belonging to the field of aquatic animal breeding technology. The marker system includes 11 pairs of highly polymorphic SSR primers and 2 pairs of specific SNP primers; the base sequences of the 11 pairs of highly polymorphic SSR primers are shown in SEQ ID NO:1-22; the base sequences of the 2 pairs of specific SNP primers are shown in SEQ ID NO:23-26; and a grass carp parentage identification kit and method are also provided. This invention combines the high polymorphism of SSR markers with the stability and ease of genotyping of SNP markers to form a grass carp parentage identification system that can be used for grass carp parentage identification and breeding, with high accuracy, economic efficiency, controllable cost, support for co-culture in the same pond, and improved accuracy of genetic assessment.
Owner:SHANGHAI OCEAN UNIV

Lengthened linear bearing

The utility model discloses a lengthened linear bearing, and relates to the technical field of bearings, the lengthened linear bearing comprises a guide rail for the linear bearing, the linear bearing comprises a shell, a retainer and a ball, a flange is arranged at the bottom end of the shell, the interior of the shell is hollow, the retainer is installed on the inner wall of the hollow, and the ball is clamped in the retainer. The linear bearing has the advantages that the rolling connection of the balls is smooth, the frictional resistance is reduced, the operation efficiency is improved, the service life is prolonged due to the fact that the retainer is made of wear-resistant plastic, the number of the balls can be correspondingly set according to the length of the linear bearing, and the service life of the linear bearing is prolonged. The linear bearing is simple in structure, good performance under different length requirements is guaranteed, maintenance is convenient, the linear bearing can stably and efficiently work in various industrial applications through the design, and reliable supporting and guiding are provided for operation of mechanical equipment.
Owner:浙江金顿自动化制造有限公司

Sliding supporting mechanism of ion implantation target chamber

The utility model provides an ion implantation target chamber sliding supporting mechanism, which comprises a supporting assembling component, a switching bearing component, a deflection limiting component, a driving bracket component, a matching guide component and a structure reinforcing component, and is characterized in that a bearing vertical frame of the sliding supporting mechanism is arranged on a supporting seat body through a switching end and can deflect on the supporting seat body; the whole sliding supporting mechanism can flexibly deflect within a certain range so as to adapt to different position and angle requirements of the ion implantation target chamber, the deflection limiting assembly ensures that the deflection range of the transfer bearing assembly is limited, and the design of the transfer bearing assembly and the bearing vertical frame enables the mechanism to have high bearing capacity. The weight of the ion implantation target chamber and related equipment can be supported, the guide sliding sleeve matched with the guide assembly is matched with the guide rod body on the back face of the ion implantation target chamber, accurate guide is provided for movement of the ion implantation target chamber, reliable support and guide are provided for the ion implantation target chamber, and stability and accuracy of equipment operation are guaranteed.
Owner:ZHEJIANG ZHONGKE SHANGHONG ION EQUIP ENG CO LTD

Wind-resistant external sunshade roller shutter with self-cleaning function

The utility model provides a wind-resistant external sunshade roller shutter with a cleaning function. The wind-resistant external sunshade roller shutter comprises a roller shutter roller, a roller shutter body, wind-resistant beads, track grooves, a protective cover shell, a driving system and a cleaning device. The roller shutter body comprises curtain cloth and a balance weight bottom beam, the top end of the curtain cloth is fixed to the roller shutter roller, and the bottom end of the curtain cloth is connected with the balance weight bottom beam. The wind-resistant beads are fixed on two sides of the curtain cloth at equal intervals and are connected and fixed through threads. The rail grooves are symmetrically formed in the two sides of the window frame, and the cross sections are C-shaped to ensure that the wind-resistant beads do not fall off; the protective housing comprises a housing cover plate and a rear housing body, a wind-resistant support is arranged on the inner side of the housing cover plate, and a sound insulation and heat preservation plate and a maintenance plate are arranged in the rear housing body; the driving system comprises a handle control seat, a driving rope, a driving rope groove, a driving fixed pulley and a driven fixed pulley, and the roller shutter is lifted through operation of the handle control seat; the cleaning device comprises a brush plate and a brush plate fixing base and makes contact with the curtain cloth to achieve automatic cleaning. The utility model has the advantages of wind resistance, cleaning function and sound insulation and heat preservation effect.
Owner:CHANGZHOU XINGTANG ENERGY SAVING TECHNOLOGY CO LTD +1

Stock bin assembly and feeding machine using same

The utility model belongs to the technical field of material conveying, and relates to a stock bin assembly and a feeder applying the stock bin assembly, which comprises a base, a driver assembly is arranged on one side of the base, a plate spring assembly is arranged on the other side of the base, the driver assembly drives the plate spring assembly to vibrate, a feeding assembly is arranged on the plate spring assembly, and the feeding assembly is arranged on the base. A feed port of the feeding assembly is provided with the stock bin assembly. The stock bin assembly comprises an activation stock bin, a plurality of air discs are evenly distributed in an inner cavity of the activation stock bin, during working, materials enter the activation stock bin, air pipes of the air discs are ventilated, and the air discs vibrate while ventilating towards the materials, so that the materials are loosened. According to the utility model, the air discs are arranged on the material grooves of the material bin assembly, so that the problems of unsmooth flow, bridging or retention of materials in the activation material bin can be effectively solved, and the material flow can be effectively promoted and the production efficiency can be improved through the high-frequency vibration and air blowing action generated by the symmetrically and uniformly distributed air discs.
Owner:WUXI RATTLESNAKE IND TECHNOLOGY CO LTD

A deployable space truss mechanism based on rope linkage

The present invention relates to the technical field of thin film structures, and discloses a deployable space truss mechanism based on rope linkage, comprising an deployment component, a base plate, a top plate, a rod linkage component, a compression and release component and a cable-stayed tensioning component, wherein the deployment component is arranged on the base plate, and comprises at least two groups of connecting rod deployment modules; the connecting rod deployment module comprises a first connecting rod deployment module and a second connecting rod deployment module connected to each other; the top plate is arranged opposite to the base plate, and is connected to the first connecting rod deployment module; a compression and release component is arranged on the base plate, for compressing and releasing the compressed space truss; a cable-stayed tensioning component is also arranged between the base plate and the top plate, for providing tensioning force to the deployed space truss; the present invention realizes a simple deployment process of the space truss, a small storage volume, and improves the structural rigidity after deployment and locking through the first linkage module, the second linkage module, the linkage rope, and the cable-stayed tensioning component.
Owner:BEIJING INST OF SPACECRAFT SYST ENG

A dual-station sliding upper die holder for a forging hydraulic press

ActiveCN224701068Urapid alternationImprove mold changing efficiency
This application relates to a dual-station sliding upper die holder for a forging hydraulic press, belonging to the field of die installation and rapid die change technology for forging hydraulic presses. It includes an upper die holder body fixed to the output end of the hydraulic press, a sliding assembly slidably mounted on the upper die holder body, an upper die core assembly mounted on the sliding assembly, and a drive assembly for driving the sliding assembly to slide. The upper die core assembly includes a first upper die core and a second upper die core arranged side-by-side with the first upper die core. The upper die holder body has an internal mounting groove for mounting the sliding assembly. The sliding assembly includes a slide rail disposed within the mounting groove, a sliding seat that slides with the slide rail and mounts the first upper die core, and a mounting plate disposed on the sliding seat and mounts the second upper die core. The drive assembly includes an external servo cylinder and a transmission component disposed between the output end of the servo cylinder and the sliding seat. This application improves the die change efficiency of the upper die holder of the forging hydraulic press.
Owner:ZHEJIANG SOTE HEAVY IND TECH CO LTD

A smart sawing production line for cutting aluminum bars of various lengths

PendingCN122666054ARolling interference blockingEliminate micro-vibrations
This invention discloses an intelligent sawing production line applicable to both long and short aluminum bars, relating to the field of aluminum bar sawing technology. It includes a sawing table and a support frame. The sawing table is disposed on one side of the support frame, with a clamping component fixedly connected to its upper surface. A sawing machine is mounted on the upper surface of the sawing table. Conveying rollers are equidistantly rotatably connected to the upper end of the support frame. The invention also includes an aluminum bar sawing lifting mechanism and an aluminum bar sawing limiting mechanism. The aluminum bar sawing lifting mechanism includes equidistantly arranged lifting plates, with the lifting plates and conveying rollers alternately distributed. A horizontal plate is disposed below the lifting plates, which can smoothly lift and separate the aluminum bars from the upper end of the conveying rollers, ensuring that the aluminum bars are not disturbed by the rolling motion of the conveying rollers during sawing. This guarantees the stability and accuracy of the sawing positioning, effectively blocks the rolling interference of the conveying rollers, eliminates the micro-vibrations caused by unstable support during sawing, and thus ensures the perpendicularity and surface smoothness of the sawn surface, improving product quality.
Owner:YUNNAN YUNLV HAIXIN ALUMINUM CO LTD

Milk foam machine with stirring head reliable and easy to disassemble and assemble

The utility model relates to the technical field of milk foam machine devices, in particular to a milk foam machine with a stirring head reliable and easy to disassemble and assemble, which comprises a milk foam machine device main body, a connecting end is mounted below a first stirring component, a rotating center limiting groove is formed in the side surface of the connecting end, and a guide groove is formed below the rotating center limiting groove. Different stirring heads can be replaced by pressing a retaining buckle in a guide groove and rotating a rotating center limiting groove, meanwhile, the stirring heads are made of PP materials so that the durability and performance of the stirring heads can be guaranteed, and due to the special circular (including other symmetrical geometrical shapes) guide-in matching and friendly grabbing hand feeling and operation design, the stirring heads can be replaced more stably and more stably. According to a power transmission coupling part, multi-direction guiding is added, two tooth positions of a driving connector are arranged, two stirring heads are six driven teeth, and coupling and reliable transmission can be carried out in any direction.
Owner:ZHUHAI SANJING TECH CO LTD

A method and system for processing water treatment efficiency data in recirculating aquaculture systems.

PendingCN122288915AGuaranteed accuracyReally reflect the actual processing effectTrace elementWater quality
This invention relates to the field of wastewater treatment technology, and discloses a method and system for processing water treatment efficiency data in recirculating aquaculture systems (RAS). The method includes: assessing the influence of trace element parameters in standard water quality data of the RAS area on the RAS area, and converting them into influence weights corresponding to the trace element parameters; adjusting the influence weights based on the synergistic and antagonistic reactions between trace elements in the standard water quality data to obtain optimized influence weights; merging the trace element parameters and optimized influence weights into a comprehensive water treatment efficiency index for the RAS area; determining that the RAS area is in an inefficient operating state when the comprehensive water treatment efficiency index is lower than the lower limit of the historical threshold range; and selecting water quality adjustment strategies corresponding to the inefficient operating state from a preset water quality adjustment strategy library. This invention can improve the efficiency of RAS water treatment efficiency data processing.
Owner:EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI

A composite power switching type rail-hung tram

The invention discloses a composite power-switching rail-hung tram, comprising a track, a cruise vehicle is arranged on the track, the cruise vehicle is rotatably connected with a main driving rotating rod extending outside the cruise vehicle, traveling wheels are fixed at both ends of the main driving rotating rod, the track comprises a straight track, a curved track and a climbing track, a power driving structure is arranged for driving the main driving rotating rod of the cruise vehicle to rotate, the power driving structure drives the cruise vehicle to travel on the straight track, and further comprises: a curved power switching structure installed in the cruise vehicle for driving the cruise vehicle to travel on the curved track, the curved power switching structure cooperates with the power driving structure; a climbing power switching structure is also installed in the cruise vehicle for driving the cruise vehicle to travel on the climbing track, the climbing power switching structure cooperates with the power driving structure; the curved power switching structure and the climbing power switching structure are introduced, and the risks of collision, slipping and deviation from the track are reduced by providing stable curved and climbing functions.
Owner:XIANGTAN NANFANG ELECTRIC LOCOMOTIVE MFG CO LTD

Driving and locking integrated large-opening-degree sliding plug door system

The invention discloses a driving and locking integrated large-opening-degree sliding plug door system. The driving and locking integrated large-opening-degree sliding plug door system comprises a door leaf and a driving and locking integrated device, and the driving and locking integrated device comprises a driving device and a linkage locking device; the driving device comprises a driving assembly and a shifting fork, a shell at the upper end of the driving assembly is fixedly connected with the shifting fork, an output shaft at the lower end of the driving assembly is sleeved with an output end gear and a limiting assembly, and the output end gear is in gear engagement with a rack fixedly connected to the door leaf; a rolling wheel is arranged on the limiting assembly, and a notch used for being matched with the rolling wheel is formed in the door leaf behind the rack; the linkage locking device comprises a lower locking device arranged on the lower half portion of the vehicle body, a shifting column is arranged on the shifting fork, a sliding groove matched with the shifting column is formed in one end of an unlocking rod of the lower locking device, the shifting fork drives the unlocking rod to rotate through the shifting column, and a lock pin matched with the lower locking device is arranged on the door leaf. The locking stability of the large-opening-degree vehicle door can be improved.
Owner:NANJING KANGNI MECHANICAL & ELECTRICAL

A controllable source electromagnetic three-dimensional forward method and system suitable for complex medium

ActiveCN121186876BSolve electromagnetic response calculation problemsReliable guidanceElectric/magnetic detectionComplex mathematical operationsConcurrent computationSystems design
The application discloses a controllable source electromagnetic three-dimensional forward method and system suitable for complex medium, and specifically comprises the following steps: constructing a three-dimensional geoelectric model based on an octree grid; based on the three-dimensional geoelectric model, using a vector finite element method to derive a finite element linear equation group of a controllable source electromagnetic field; for the hanging edge and the hanging surface existing in the octree grid, ensuring the tangential continuity of the electric field through a constraint matrix to optimize the finite element linear equation group; solving the optimized finite element linear equation group to obtain three-dimensional electric field values; and using an MPI-OpenMP hybrid parallel computing strategy to perform parallel solving on the finite element linear equation groups of multiple frequency points. The application can solve the electromagnetic response calculation problem of multiple physical parameters in the underground, fully considers the influence of different physical parameters in the controllable source electromagnetic forward simulation process, can avoid the influence of different parameters, provides more reliable guidance for field observation system design, and also lays a foundation for multi-parameter inversion imaging.
Owner:HUNAN UNIV OF SCI & TECH

Chain guide structure of chain hoist

ActiveCN222524065Uwell orientedSmooth navigationPortable liftingRatchetClassical mechanics
The utility model relates to the technical field of hoists, in particular to a chain guide structure of a chain hoist, which comprises a chain guide plate, a right wall plate and an outer wall plate are sequentially arranged on one side of the chain guide plate, a left wall plate and a ratchet wheel housing are sequentially arranged on the other side of the chain guide plate, and a through hoisting chain wheel hole is formed in the middle of the chain guide plate. A left chain guide groove and a right chain guide groove are formed in the two sides, close to the right wall plate, of the lifting chain wheel hole respectively, a baffle position groove is formed in the lower portion, close to the right wall plate, of the lifting chain wheel hole, a lifting chain wheel is arranged on the inner side of the lifting chain wheel hole, and the outer side of the lifting chain wheel is sleeved with a lifting chain. The guide chain plate is of a novel guide chain structure, is different from single guide structures such as a lifting chain wheel and a guide chain plate in the prior art, has the advantages of being good in material sealing performance and excellent in guiding performance, and has the advantages of being high in strength, light in weight, dustproof, safe, smooth and reliable in guiding, good in sealing performance, safe, dustproof and the like.
Owner:JT (JIANGSU) TECH CO LTD

A locomotive driving hollow shaft cross gear processing device and method

The present invention provides a locomotive drive hollow shaft cross gear processing device and method, which relates to the locomotive processing technology field. The device of the present invention includes a clamping device, a pressure-controlled tensioning and positioning device and an angle positioning device which are sequentially arranged on a connecting plate from top to bottom. The outer side of the connecting plate is connected to a numerical control indexing turntable. The pressure-controlled tensioning and positioning device is inserted into the tail of the hollow shaft. The pressure-controlled tensioning and positioning device is connected to a hydraulic power source. The axis of the hollow shaft is a horizontal axis. The top of the hollow shaft is in contact with a milling cutter, and the milling cutter is connected to a machine tool spindle. The present invention innovatively formulates a process flow for machining the locomotive drive hollow shaft cross gear using a disc-shaped multi-tooth forming milling cutter on a vertical machine tool spindle, formulates a reasonable and practical processing method, and completely changes the original outdated processing technology. It strives to completely solve the problems of low processing efficiency, poor precision and quality with the simplest and most convenient process operation method, and further improves the technical level of a locomotive drive hollow shaft cross gear processing field.
Owner:CRRC DALIAN CO LTD

A rock sampling pose calculation method for a field geological exploration robot

The present application relates to the field of exploration survey, disclose a kind of rock sampling pose calculation method for field geological reconnaissance robot, comprising: the color image and depth image of target area are collected by depth camera, and three-dimensional point cloud is generated;Based on multi-scale geometric feature analysis, combined with spatial distribution constraint and confidence score, candidate points are automatically screened from point cloud, and stable sampling points and their pixel coordinates are output by time sequence smoothing and stability discrimination;Local depth data is extracted in the neighborhood of sampling point and converted into local point cloud, and the three-dimensional position and surface normal vector of the point in camera coordinate system are calculated using plane fitting algorithm;The position and normal vector are converted to the base coordinate system of mechanical arm using the pre-calibrated hand-eye conversion matrix, and the complete pose of the end effector is constructed based on the normal vector, and the target pose matrix is obtained by combination.The present application realizes the stable, accurate and automatic calculation of rock sampling point pose in complex outdoor environment.
Owner:INST OF MINERAL RESOURCES CHINA METALLURGICAL GEOLOGY ADMINISTRATION +1

Super-strong magnetic flat plate magnetic separator

The utility model relates to the technical field of flat plate magnetic separators, in particular to a super-strong magnetic flat plate magnetic separator. Comprising a device rack and a feed hopper with a filter plate, the feed hopper with the filter plate is mounted at the top of the device rack, a servo motor, a reciprocating screw rod, a sliding block, a mounting rod and a stirring roller are mounted on the outer side of the feed hopper with the filter plate, guide rails are mounted on the two sides of the feed hopper with the filter plate, and a telescopic motor is mounted at one end of the feed hopper with the filter plate; and reset springs are mounted at the other end of the feed hopper with the filter plate at equal intervals. Materials enter the feeding hopper with the filter plate, at the moment, the telescopic motor pushes the feeding hopper with the filter plate to slide along the guide rail, when the telescopic motor pushes the feeding hopper with the filter plate to move to the limiting position, the reset spring pushes the feeding hopper with the filter plate to reset, and vibration feeding is conducted on the materials in a circulating and reciprocating mode. And the sliding block slides to drive the mounting rod and the stirring roller to stir the filter plate at the bottom of the feed hopper with the filter plate, so that the blockage phenomenon is avoided to the greatest extent.
Owner:杨健