3194results about How to "Practical" patented technology

The invention relates to an array electric imaging logging based reservoir oil-water identification method and system. Aiming at the resistivity distribution characteristics of mud-invaded formations, a 'five-parameter formation model' is established, which is adapted to the requirement for simulating the resistivity distribution characteristics of different mud types and different invaded formations, and is pioneering in the aspects of forward-inversion models and processing methods of array electric imaging logging; and based on a 'five-parameter inversion' method for array electric imaging logging, an operation of carrying out resistivity distribution profile reconstruction on mud-invaded formations is performed, which reflects the actual differences between different resistivity distribution characteristics or change rules of mud-invaded oil formations or water formations. The method has stronger practicability, and is pioneering in the actual application aspects of qualitative identification and quantitative calculation on reservoir fluid properties.

The invention discloses an electric power distribution method convenient for maintenance. By arranging a second threaded column (21) and an extrusion plate (22), when the second threaded column (21) rotates, the extrusion plate (22) can be driven to rotate, then the extrusion plate (22) can drive a friction pad (27) to rotate, and when the friction pad (27) is connected with the lower surface of the inner wall of a shell (1) in a lap joint mode, a support plate (17) can be fixed; and by arranging a stop block (28), when the back face of a second protection plate (10) is connected with the front face of the stop block (28) in a lap joint mode, a first threaded column (13) can be more conveniently connected with a second threaded sleeve (14), and therefore the second protection plate (10) can be better fixed. The electric power distribution method convenient for maintenance has the advantages that the structure is compact, the design is reasonable, and the practicability is high.

The invention discloses dsRNA of a targeted BdSpt7 gene, a biocontrol agent and application of the dsRNA. The sequence of the dsRNA of the targeted BdSpt7 gene is as shown in SEQ ID No.2. The invention further discloses a preparation method of the biocontrol agent of the targeted BdSpt7 gene. The active ingredient of the biocontrol agent is the dsRNA of the target BdSpt7 gene. The invention also provides an application of the botryosphaeria dothidea BdSpt7 gene in prevention and treatment of apple botryosphaeria dothidea, and a nucleotide sequence of the botryosphaeria dothidea BdSpt7 gene is shown as SEQ ID No.1. The invention also provides an African trichoderma harzianum engineering strain for expressing dsRNA, the African trichoderma harzianum engineering strain is integrated with a dsRNA expression box for interfering gene expression of a target gene BdSpt7, the dsRNA expression box is shown as SEQ ID No.1, and the African trichoderma harzianum is an African trichoderma harzianum with the preservation number of CGMCC (China General Microbiological Culture Collection Center) No. 41709. The dsRNA targeting the BdSpt7 gene can significantly reduce the pathogenicity of the physalospora piricola through interference, and the African trichoderma harzianum engineering strain can colonize on the plant surface and continuously express the dsRNA so as to play a role in preventing and treating the physalospora piricola, and is green and environment-friendly.

The invention relates to a two-chamber low-pressure casting holding furnace and a low-pressure casting method. The two-chamber low-pressure casting holding furnace comprises a heat preservation chamber, a low-pressure casting chamber, a communicating cavity, a liquid rising pipe, a first air inlet pipe and a liquid opening, wherein the heat preservation chamber comprises a precipitation cavity and a confluence cavity; and the communicating cavity comprises a liquid inlet section, a transition section and a liquid outlet section. Compared with the prior art, the heat preservation chamber of the holding furnace is directly communicated with the low-pressure casting chamber, an intermediate valve is omitted, and the pressure bearing capacity of the holding furnace is greatly improved; and large pressure can be generated by arranging a second air inlet pipe and enabling the second air inlet pipe to be matched with the first air inlet pipe, so that the overall working performance of the holding furnace is improved in a spanning manner, the holding furnace can be used for producing thin structural parts, such as automobile chassis parts, A columns and B columns, with larger projection areas, and the practicability of the holding furnace is greatly improved.

The invention provides a target identification method and system based on multi-source information fusion, and relates to the technical field of low-altitude target detection. The method comprises the following steps: acquiring target radar track data, interception equipment track data and position area information data; based on target radar track data, extracting a first feature in an RCS form dimension, and extracting a second feature in a motion dimension; based on the target radar track data and the track data of the monitoring equipment, determining a frequency spectrum monitoring correlation factor and regional position information features; performing feature fusion on the first feature, the second feature, the spectrum interception correlation factor and the regional position information feature to obtain a target feature, and identifying a target type; and identifying a target threat level based on the target type and the target radar track data. The method and the device are used in a target identification process based on multi-source information fusion, and the technical problem that the target threat degree cannot be accurately identified in a complex environment in the prior art is solved.

The invention provides a rainfall monitoring method and system based on unmanned aerial vehicle multi-mode noise reduction in the technical field of environment monitoring and unmanned aerial vehicle application, and the method comprises the steps: S1, collecting a visible light image and a long-wave infrared image through a multispectral vision module after an unmanned aerial vehicle takes off, and collecting a rainfall audio from an acoustic cabin through a microphone; s2, carrying out noise reduction processing on the visible light image, the long-wave infrared image and the rainfall audio; s3, extracting a raindrop size distribution histogram and a spatial density thermodynamic diagram based on the visible light image and the long-wave infrared image, and extracting acoustic MFCC features based on rainfall audio; s4, performing feature fusion operation based on the raindrop size distribution histogram, the visual density thermodynamic diagram and the acoustic MFCC features to obtain rainfall intensity; and S5, carrying out cumulant dynamic compensation based on the rainfall intensity to obtain the cumulative rainfall. The rainfall monitoring method has the advantages that the precision, robustness and practical level of rainfall monitoring are greatly improved.

The utility model provides a self-propelled sunflower harvester, which belongs to the technical field of agricultural machinery and structurally comprises a self-propelled vehicle machine and a frame, a header is arranged at the front end of the frame, and a primary conveyor and a secondary conveyor are communicated with the rear of the header. The rear part of the secondary conveyor is communicated with a thresher; a screening mechanism is arranged below the thresher, and the screening mechanism is composed of a first-stage vibrating screen which is composed of a swinging fish scale screen and rushes backwards, and a second-stage vibrating screen which is composed of a swinging stepped dense mesh screen and rushes forwards; the screening mechanism communicates with the conveying and lifting mechanism. The conveying and lifting mechanism comprises a transverse auger and a bucket elevator. And the conveying and lifting mechanism is connected with the grain collecting hopper. The sunflower seed and sunflower disc separating device can achieve good separation of sunflower seeds and sunflower discs, the sunflower seeds and the sunflower discs are respectively conveyed in two paths during threshing, and simple and efficient threshing separation can be achieved. The threshing process is automatically completed, manpower and material resources are saved, and good harvesting and harvesting effects are achieved.

The invention relates to the technical field of machine learning, and provides a drill hole rock mass structure quantitative prediction method and system based on machine learning, and the method comprises the steps: constructing an associated data set with a drill hole television image and / or an actual rock mass structure disclosed by an exploration adit as a benchmark, and taking an actual rock mass structure quantitative value as a benchmark; and calculating an overall deviation correction coefficient of a rock mass integrity coefficient and a rock quality index based on the associated data set, performing deviation correction on original data by using the correction coefficient, and realizing automatic mapping from double-index input to rock mass structure quantitative predicted value output by a machine learning model. The decision coefficient of the prediction model on a test set reaches 0.9 or above, the average absolute error does not exceed 0.3, the prediction time of a single group of data does not exceed 1.5 seconds, and the prediction precision and efficiency are far higher than those of a traditional experience method. The method supports local off-line deployment, adapts to a field network-free environment, constructs a data closed-loop mechanism to realize continuous iteration of the model, and provides a reliable basis for dam foundation safety assessment.

The invention discloses a confocal laser microscope detection method for micro-plastic surface biofilm components and biomass, and belongs to the field of micro-plastic pollution monitoring. The method comprises the following steps: carrying out stratified sampling and polymer component identification on micro-plastic in an environmental water body; the method comprises the following steps: marking algae, blue-green algae, bacteria and extracellular polymeric substances in a biological membrane through specific fluorescent staining, carrying out high-resolution three-dimensional imaging by utilizing a confocal laser microscope, and realizing batch quantitative analysis of each component of the biological membrane by adopting ImageJ software. The technical problems that an existing detection method is insufficient in parameter dimension, evaluation result deviation is caused only based on partial component quantification, and the influence of the overall structure of the biological membrane on the micro-plastic migration behavior cannot be truly reflected are solved. According to the method, the biomass and spatial distribution of each component of the biological membrane can be comprehensively and accurately quantified, the accuracy of analyzing the vertical migration mechanism of the micro-plastic is improved, and multi-dimensional data support is provided for ecological risk assessment.

The utility model discloses an anti-particle combination valve, which comprises a valve body, a valve core, a valve core and a valve core, the driving mechanism is connected to the side wall of the valve body; one end of the valve rod is connected with the driving mechanism; the valve element is arranged in the valve body and connected with the other end of the valve rod, when the valve rod is linked by the driving mechanism, the valve element is linked by the valve rod, the valve element moves in the valve body, and the gas channel is opened or closed; the protection piece is connected to the side wall of the valve body and arranged opposite to the driving mechanism, one end of the protection piece makes contact with the gas channel, and the valve element abuts against the protection piece when the gas channel is closed by the valve element; the protection piece is made of stainless steel; the part, making contact with the protection piece, of the valve element is made of stainless steel. Therefore, the technical problem that particles generated by contact friction between the valve element and the valve body pollute a vacuum system is solved.

This invention discloses a sealing glass with good wettability to titanium alloys, comprising the following components in weight percentage (wt.%): 30-50 wt.% SiO2, 1-5 wt.% Al2O3, 10-30 wt.% B2O3, 10-20 wt.% TiO2, 5-9 wt.% CaO, 1-5 wt.% SrO, 0.1-0.5 wt.% BaO, 2-8 wt.% ZrO2, 1-2 wt.% La2O3, 0-1 wt.% CeO2, and 0.1-0.5 wt.% CoO. This invention also provides a method for preparing sealing glass, comprising the following steps: weighing raw materials according to a mass percentage of a glass composition, mixing them evenly, heating and melting them into a glass melt; after the glass melt is uniform, pouring the molten glass melt into deionized water for rapid cooling and quenching, then drying to obtain glass melt fragments; then ball milling the dried glass fragments into glass powder, drying and sieving to ensure the glass powder particle size is less than 100 micrometers, thus obtaining the desired sealing glass material powder. This invention has a linear thermal expansion coefficient of (50-70)×10⁻⁶ in the range of 20-300 °C. ‑7 / ℃; glass softening temperature is 610-660℃; advantages include chemical stability of level IV or above.

This utility model relates to the field of cement processing technology, specifically to a cement vertical mill feeding structure, including a conveyor base and a dispersing device. The conveyor base has a feed hopper, and the feed hopper has a guide platform. A rotating plate is rotatably connected to the bottom of the guide platform. The dispersing device includes a first motor mounted on the feed hopper, a drive shaft and a driven shaft rotatably connected to the feed hopper, a first gear and a second gear coaxially mounted on the drive shaft and the driven shaft respectively, and multiple sets of dispersing structures equidistantly distributed along the axial direction. The first motor and the drive shaft are driven together, and the first gear and the second gear are meshed together. Each set of dispersing structures includes six dispersing blades arranged in a ring array. Each set of dispersing structures on the drive shaft and the driven shaft is alternately distributed and interleaved with each other. This utility model can efficiently disperse and pre-treat the fed material, avoiding the problem of material getting stuck at the feed inlet and ensuring the efficiency of cement processing.

This utility model relates to the field of steel strip leveling technology and discloses a steel strip leveling device, including a support, a first leveling group and a second leveling group, and a conveying mechanism. A leveling box is provided on the support. The steel strip leveling device, by setting the first leveling group and the second leveling group in the leveling box, and setting the upper leveling mechanism and the lower leveling mechanism in the leveling box, levels the wave deformation of the steel strip through the first leveling group and the second leveling group and conveys the steel strip, and by setting the upper leveling mechanism and the lower leveling mechanism to level the bending deformation of the steel strip during conveying, forms a continuous leveling process, which improves efficiency and has strong practicality.

The application discloses a plastic solid waste recycling device and belongs to the technical field of plastic recycling. A fixed mold assembly is fixedly arranged on an equipment table. A movable mold assembly is movably arranged on the equipment table. A linkage member is movably arranged on the equipment table and is provided with a linkage plug on the side facing the movable mold assembly. An outer wall of the side of the fixed mold assembly facing the movable mold assembly is provided with an insertion block. The outer wall of the side of the insertion block facing the movable mold assembly is provided with a locking cavity. The movable mold assembly is axially provided with a penetrating insertion cavity. The insertion block is slidably arranged in the insertion cavity to realize preliminary locking. The linkage plug is slidably arranged in the locking cavity to realize relocking. The multistage locking structure is matched with the integrated sealing design. After the mold is closed, the locking is firm, the melt pressure in the injection molding process is effectively resisted, the problems of loosening and deviation of the mold are avoided, the sealing performance of the butt joint surface of the mold is greatly improved, the overflow and leakage phenomena are completely eliminated, the quality of the plastic product is ensured, and defects such as flash and uneven wall thickness are reduced.

This utility model relates to the field of crushing device technology, specifically disclosing a crushing device for recovering coated sand, including a base, a crushing cylinder fixedly installed on the top of the base, a feeding channel fixedly connected to the top of the crushing cylinder, a rotating rod rotatably arranged inside the crushing cylinder, a uniformly distributed and symmetrically arranged cutting blade fixedly installed on the rotating rod, an arc-shaped filter plate arranged on the bottom surface of the crushing cylinder, a conveying channel fixedly connected to the bottom surface of the crushing cylinder at a point on the arc-shaped filter plate, a bottom cylinder fixedly connected to the bottom of the conveying channel, a movable disc rotatably arranged inside the bottom cylinder, a rotating rod 2 arranged inside the bottom cylinder, the rotating rod 2 arranged on the movable disc, a distributed and symmetrically arranged movable column fixedly installed on the rotating rod 2, and a magnetic column arranged inside the movable column. This crushing device for recovering coated sand can directly adsorb metal impurities in the crushed coated sand, improving the purity of the recovered coated sand and having strong practicality.

This invention discloses a highly efficient asymmetric synthesis method for aryl propionic acid drug molecules. The method uses racemic aldehydes as substrates and thiamine pyrophosphate-dependent enzymes as biocatalysts. Electrolysis is performed in a diaphragm-free electrolytic cell under conditions of an external redox dielectric and constant current, in a buffer salt solution and nitrogen atmosphere. This method achieves dynamic kinetic oxidation of aldehydes via bioelectrocatalysis, enabling the high-efficiency and high enantioselectivity synthesis of aryl propionic acid drug molecules. The method eliminates the need for redox agents and additives, is simple to operate, operates under mild reaction conditions, and is green and sustainable. This invention applies bioelectrocatalysis to asymmetric synthesis, providing a green and efficient new enzymatic synthetic route for the asymmetric synthesis of aryl propionic acid drug molecules, which has significant application prospects in the pharmaceutical industry.

The utility model provides a safety protection device, which relates to the technical field of experimental protection and comprises a water storage tank, a top cover is mounted at the top end of the water storage tank through bolts, a partition plate is fixed on the inner wall of the water storage tank, and an insertion plate is jointly inserted into the partition plate and the top cover. Through the arrangement of the partition plate, the water storage tank is divided into two parts, the filter frame is arranged at the communicating position of the two parts, when a water source is poured into the water storage tank, water is poured from the part which does not need to be taken, the water is filtered by the filter frame and enters the other part which is used for water of the water storage tank, and only the part which is filtered by the filter frame is used when the water is used; and in addition, through operation of a motor, a screw rod can be driven to rotate, a movable plate is made to ascend and descend under limiting of a limiting column, a movable block can be driven to ascend and descend, and therefore a sprayer clamped by a buckle piece can be driven to be adjusted according to the height of a user, and the practicability is higher.

The utility model relates to the technical field of photovoltaic power generation, and discloses a photovoltaic support convenient to install, which comprises two bottom supports, the upper ends of the two bottom supports are jointly and fixedly connected with two fixing frames, the upper ends of the two bottom supports are both fixedly connected with two triangular connecting pieces, and the triangular connecting pieces are fixedly connected with the two fixing frames. The upper ends of the two bottom supports are fixedly connected with short rods. According to the photovoltaic panel laying device, the photovoltaic panel can be laid at a lower position through the two long plates and the movable plate, then the photovoltaic panel is driven to move to a higher position through the cooperation of the two long plates and the movable plate, and then the photovoltaic panel is blocked at a specified position, so that the photovoltaic panel at the higher position can be laid more conveniently, and the laying efficiency of the photovoltaic panel is improved. The photovoltaic panel carrying device is simple in structure, convenient to operate and high in practicability.

The utility model discloses an enzymatic reaction tank device for honey production, which relates to the technical field of honey production and comprises a supporting seat, rotating shafts are symmetrically and rotatably connected to the top of the supporting seat, a mixing barrel is fixedly connected between the two rotating shafts, and a reaction mechanism is arranged at the top of the supporting seat. The reaction mechanism comprises a rotating assembly and a mixing assembly, the rotating assembly and the mixing assembly are used in cooperation, the rotating assembly comprises a rotating motor, the rotating motor is fixedly connected to the interior of the supporting base, and the output end of the rotating motor is fixedly connected with a first belt wheel. According to the enzymatic reaction tank device for honey production disclosed by the utility model, through the arranged reaction mechanism, not only can the inside of the mixing barrel be stirred, but also the mixing barrel can be rotated, so that internal materials can be rapidly fused, the stirring and mixing effects are better, rapid production is facilitated, the structure is simple, and the practicability is higher.

Support multi -way communication free switching intelligent LED drive power supply circuit, including;MCU, the MCU is connected with first communication circuit, second communication circuit and third communication circuit;Still include with first communication circuit's first relay, with second communication circuit connection's second relay and with third communication circuit connection's third relay, first relay, second relay and third relay one end common connection, and this common connection point is connected with EMI circuit, EMI circuit is used for according to communication mode connection corresponding communication dimming line;Still include with the MCU is connected and is used for controlling each relay conduction's relay closure normally open circuit, the present application can support multiple application scenarios without replacing power supply, it is convenient for factory production and user uses, and multiple communication modes can be freely switched, and the practicality is stronger.

The invention discloses a node sub-health fault processing method and device, electronic equipment and a storage medium, which are applied to the technical field of distributed storage, and are used for solving the problems of poor timeliness of sub-health isolation and large influence on services in related technologies. Determining a sub-health copy corresponding to the business input and output operation; performing temporary isolation on the sub-health copy, and stopping write operation on the sub-health copy; in response to a permanent isolation instruction of the system management center, performing permanent isolation on a sub-health component corresponding to the sub-health copy; or, in response to an isolation cancelling instruction of the system management center, cancelling the temporary isolation of the sub-health copy. According to the method and the device, the corresponding sub-health copies can be temporarily isolated in time, the isolation timeliness is improved, the temporary isolation of the sub-health copies can be canceled according to requirements, and the problem of wrong isolation caused by too fast isolation is effectively avoided.

The present application relates to the technical field of centrifuges, and particularly relates to a rapid detection device for laboratory centrifuge components and a working method thereof, comprising a transmission line, a solution tank and a rotary table, the lower side of the rotary table is provided with at least one group of rotatable clamping assemblies, the clamping assemblies are used for clamping a spiral pusher to reciprocate between the solution tank and the transmission line, a plurality of electric telescopic rods II are arranged between the clamping assemblies and the rotary table, the electric telescopic rods II drive the clamping assemblies to lift, the spiral pusher is lowered into the solution tank to perform corrosion resistance test, the inner side of the solution tank is provided with a liftable cylindrical baffle, the cylindrical baffle is lifted away from the solution tank along with the spiral pusher, the clamping assembly drives the spiral pusher to rotate to perform spin-drying, and the present application realizes automatic continuous test function conveniently and efficiently.

The application discloses an airborne equipment weighing device, which comprises an article support, a ball, a ball support, a pressure sensor, a pressure sensor display instrument, a pressure sensor support and a support base, the article support is supported on the ball, the ball is inlaid on the ball support, one end of the ball supports the article support, the other end of the ball is pressed on the pressure sensor, one end of the pressure sensor supports the ball, the other end of the pressure sensor is connected with the pressure sensor display instrument through a wire, the pressure sensor is installed on the pressure sensor support through screw threads, and the pressure sensor support is arranged on the support base. The application has the advantages of simple operation, small error, clear principle, convenient production, high practicability, easy popularization and application and great value.

The utility model relates to filter cloth cleaning technical field, specifically disclose a filter cloth cleaning device of sludge water separation treatment, including base, ultrasonic cleaning tank and water pipe, the ultrasonic cleaning tank fixed mounting is above base, water pipe fixed connection is in the ultrasonic cleaning tank top side, the ultrasonic cleaning tank bottom fixedly connected with standpipe, the standpipe is separately provided with switch valve and blowdown pump, the standpipe is fixedly installed with filter screen, the standpipe bottom fixedly connected with drain pipe, the standpipe bottom end fixedly installed with motor, the filter screen middle part rotationally arranged with vertical rod, motor output shaft end portion and vertical rod bottom end fixed installation, the vertical rod side fixedly installed with movable plate, the movable plate bottom edge is provided with brush, this filter cloth cleaning device can separate sludge directly when filter cloth cleaning completes blowdown, discharges sludge after separation, effectively reduces subsequent sludge water treatment cost, and the practicality is strong.

The utility model relates to a kind of mobile phone support, specifically a self-locking type oblique roof vacuum mobile phone support, the mobile phone support includes suction disc main body, suction disc main body includes bottom disc and cover is set on the surface cover of bottom disc, unlocking block, locking block and oblique roof block are set between bottom disc and surface cover, wherein surface cover is contact connection with unlocking block, and surface cover includes main cover plate, limit strip is fixed in the lower end surface of main cover plate, unlocking block includes center body and arrowhead body fixed on center body, limit slot is formed in the upper end surface of center body, limit strip is slidably arranged in limit slot, and can linearly move in limit slot, upper positioning block and lower positioning block are fixed on the end of arrowhead body away from center body, upper positioning block is located in the position above lower positioning block, and spring limiting slot is formed between upper positioning block and lower positioning block. The self-locking type oblique roof vacuum mobile phone support, the operation of adsorption and un-adsorption is very simple and convenient, and use experience is improved.

The utility model relates to a tail cover with a rotary switch and a flashlight. The tail cover with the rotary switch comprises a sleeve and a switch assembly. The switch assembly comprises a point switch, a switch base, a pressing cap, a reset spring, a connecting sleeve and a rotating ring. The point switch is arranged in the mounting space of the switch base; the connecting sleeve sleeves the periphery of the pressing cap, and the front end of the connecting sleeve extends into the sleeve; the rotating ring sleeves the connecting sleeve and is fixedly connected with the connecting sleeve; a positioning ball is arranged at the front end of the connecting sleeve; three positioning holes located in the same virtual circle are formed in the switch base, an ejector block is formed on the outer side of the switch base, and a low-position platform, a middle-position platform and a high-position platform are formed at the front end of the pressing cap in the circumferential direction. When the positioning beads extend into the corresponding positioning holes, the top block and the low-position platform or the middle-position platform or the high-position platform jointly restrain the maximum distance of the pressing cap moving towards the direction close to the point switch. And gear switching and positioning are achieved by rotating the rotating ring, the diversified requirements of a user in different scenes can be met, and practicability is high.

The utility model relates to the technical field of sneakers, in particular to an anti-skidding sneaker which comprises a vamp and an adjusting mechanism. A shoe tongue and a fixing shell are arranged on the vamp, and a partition plate is arranged in the fixing shell; the adjusting mechanism comprises a rotating shaft rotationally arranged in the fixing shell, a ratchet wheel coaxially arranged on the rotating shaft, a spring bolt used for being connected with the ratchet wheel in a clamped mode, a connecting rod arranged on the spring bolt, a protruding ring coaxially arranged on the connecting rod, a supporting plate arranged on the partition plate and a spring with the two ends arranged on the protruding ring and the supporting plate correspondingly. The two fixing frames are arranged on the partition plate, and the two guide blocks are symmetrically distributed on the convex ring; the end of the spring bolt is matched with a tooth groove of the ratchet wheel, the connecting rod penetrates through the supporting plate and is slidably connected with the supporting plate, and the guide block is slidably connected with the fixing frame. According to the utility model, the traditional knotting and fastening mode is changed to fasten the shoe tongue, so that the defect that the shoelace is easy to loosen during sports is avoided, and the safety is improved.

A kind of airplane nose landing gear turning performance test bench and test method contain nose landing gear test piece, rigid support frame and jacking device, the body of nose landing gear test piece is fixed on rigid support frame, wheel is supported on jacking device, turning mechanism drives the top plate of jacking device top by fixed shaft along with wheel rotation, the fixed shaft is connected with a loading actuator, the telescopic end of loading actuator is hinged with one end of fixed shaft, the other end of loading actuator is hinged on support frame by connecting seat, the loading actuator is controlled by torque loading controller, when carrying out turning performance test, nose inner cylinder and wheel are compressed using jacking device, so that wheel is in turnable state;According to the turning angle of wheel, predetermined torque is applied to fixed shaft using torque loading actuator.

This invention discloses a lightweight method for detecting foreign objects (FOOs) in power transmission lines, relating to the fields of power line inspection and computer vision. A YOLOv10-based FEO detection model is constructed, comprising a feature extraction part, a feature interaction part, and a detection head part. The C2f module in the feature extraction and feature interaction parts is replaced with an expert dynamic extraction module, and the detection module in the detection head part is replaced with a parameter-sharing detection module. The trained FEO detection model is obtained by collecting and evaluating a calibrated FEO dataset of power transmission lines. FEO keyframes are input into the trained FEO detection model to obtain detection results. The expert dynamic extraction module acquires feature maps from multiple receptive fields, achieving rich representation in FEO detection environments with varying scales. The parameter-sharing detection module, based on this, reduces redundant computation and enhances the semantic representation of small targets through parameter sharing and grouping normalization, effectively improving the efficiency of FEO detection in power transmission lines.