850results about How to "Reduce quality problems" patented technology

The invention relates to the technical field of textile, in particular to a digital textile equipment management method based on big data, and the method comprises the following steps: 1, an equipment connection and data initialization stage: checking the data interface type of equipment in each link of a textile process, and connecting the data interface type to a workshop data collection network, establishing an electronic file for each device, setting initial data acquisition parameters, and carrying out pre-operation test and calibration on the devices; 2, a production process monitoring and data recording stage; according to the scheme, the equipment performance evaluation model is established by using a big data analysis technology, multiple factors such as energy consumption efficiency, a production stability index and an equipment failure rate trend are comprehensively considered, and the equipment performance is comprehensively and accurately evaluated, so that sudden equipment failures are effectively avoided, the risk of production interruption is reduced, and the production efficiency is improved. The overall management efficiency and the operation stability of the equipment are improved, the continuity of the production process is guaranteed, and the cost increase caused by equipment faults is reduced.

The invention discloses a battery module which comprises a battery main body, a battery end plate and an acquisition device, the battery main body comprises at least one battery cell, the battery end plate comprises a plastic end plate main body, and the end plate main body is arranged at the end part of the battery main body and is used for fixing the battery main body; the collection device comprises a blister tray, a blister upper cover, a collection assembly and a plurality of busbars. The plastic uptake tray supports the acquisition assembly and the plurality of busbars, the plastic uptake upper cover is connected with the plastic uptake tray, the acquisition assembly and the plurality of busbars are all located between the plastic uptake tray and the plastic uptake upper cover, the busbars are electrically connected with pole columns of the battery cells, the acquisition assembly is electrically connected with the plurality of busbars respectively and is led out outwards, and the acquisition assembly is connected with the plastic uptake tray. The pole of the battery cell is led out; the battery module mainly solves the technical problems of how to reduce the mass of the battery module to improve the energy density of the battery module and how to reduce the manufacturing cost of the battery module on the premise of ensuring the reliability and safety of the battery module.

The invention discloses a space flexible mechanical arm rope cluster active and passive hybrid driving module and method.The space flexible mechanical arm rope cluster active and passive hybrid driving module comprises a rope cluster multi-axis driving module, the rope cluster multi-axis driving module comprises a plurality of rope cluster driving modules, each rope cluster driving module comprises a rope driving mechanism and a driving rope, one end of each driving rope is connected with the corresponding rope driving mechanism and is driven by the corresponding rope driving mechanism to linearly move, and the other end of each driving rope is driven by the corresponding rope driving mechanism; the other end of the driving rope is connected with a kinematic pair of any arm section in the arm section; and the segmented equal-curvature linkage module provides constraint for all the arm sections in the arm sections, the same-direction moving shafts of all the arm sections in the arm sections are coupled together through linkage ropes, and all the arm sections are driven to synchronously move at equal angles under the driving action of the rope cluster multi-shaft driving module. The problems that the motion state of the under-actuated flexible mechanical arm is not unique, and the number of driving units of the full-drive flexible mechanical arm is large are fundamentally solved, and the overall number, quality and power consumption of the driving units are greatly reduced while the motion flexibility, the tail end precision and the structural rigidity are guaranteed.

The invention discloses a method for degrading vomitoxin in a corn deep processing process, and relates to the technical field of corn deep processing, and the method specifically comprises the following steps: obtaining temperature dynamic distribution information of corn slurry in each region, judging whether the temperature of the corn slurry in each region is too fast or too slow or not, and if yes, judging whether the temperature of the corn slurry is too fast or too slow or not; dividing each area into a temperature acceleration area, a temperature equalization area and a temperature delay area according to the judgment result; based on the division result of each area, an adjustment mechanism of heating power and time is constructed, and different temperature adjustments are respectively carried out on the temperature acceleration area, the temperature equalization area and the temperature retardation area; in the process that the adjustment mechanism adjusts the temperature of each area, whether the temperature adjustment effect of the adjustment mechanism in each area reaches the expectation or not is evaluated, and the adjustment mechanism is optimized according to the evaluation result. The problem that the temperature is not uniform in the corn slurry heating process is solved, and the effect of uniformly degrading vomitoxin is achieved.

The invention discloses an infrared screening automatic separator suitable for a discharging port, and relates to the technical field of material screening, the infrared screening automatic separator comprises a discharging inlet, a vibrating screen plate is connected to the upper end of the discharging inlet in an up-down sliding mode, and a screen hole abnormity detection mechanism is arranged between the vibrating screen plate and the discharging inlet; the screen hole anomaly detection mechanism is used for detecting the indentation degree of screen holes in the surface of the vibrating screen plate, the screen hole anomaly detection mechanism is provided with the movement limiting mechanism, the movement limiting mechanism is used for changing the screen hole detection track, and the real-time monitoring function reduces the screening efficiency reduction or the product quality problem caused by the screen hole problem of the vibrating screen plate; according to the sieve plate, the stability and reliability of the production process are ensured, the problems of the sieve holes can be found in time and repaired, further expansion and deterioration of the problems can be avoided, the complexity and cost of maintenance work are reduced, in addition, through regular monitoring and preventive maintenance, the service life of the sieve plate can be prolonged, and the overall maintenance cost can be reduced.

The invention, which relates to the technical field of the electric power supervision management and control system, discloses a supervision management and control system based on improvement of the electric power marketing service level, and the system integrates four modules of data acquisition, data analysis, supervision management and control and feedback improvement. Basic information, service requests and service process records of clients are collected through the data acquisition module; the data analysis module identifies problems and bottlenecks in the service process; the supervision and control module comprises a real-time monitoring and early warning system sub-module, a service quality evaluation model sub-module, a process monitoring and optimizing sub-module and the like and can supervise and control the service process in real time, and the feedback improvement module collects customer feedback and service evaluation and continuously improves and optimizes the service. The system also has a self-learning upgrading capability, continuously optimizes the service process through an internal feedback mechanism, improves the service quality, effectively solves the defects of an existing power marketing service system in the aspects of supervision and control, and provides a more efficient and convenient service solution for the power industry.

The utility model discloses a corn precision dibbling pneumatic type centralized seed supply device which comprises a box body, a plurality of seed metering mechanisms and a plurality of air blowing mechanisms, each seed metering mechanism comprises a hopper and a seed metering device, and an inlet of the seed metering device is communicated with an outlet of the corresponding hopper; each air blowing mechanism comprises a three-way pipe and an air blower, a first interface of the three-way pipe is communicated with an outlet of the corresponding seed metering device, a second interface of the three-way pipe is communicated with an outlet of the air blower, and a third interface of the three-way pipe is communicated with a seed inlet of the corresponding seeding unit through a connecting hose. The seed sowing device has the beneficial effects that the air blowing mechanism is arranged, so that seeds discharged by the seed sowing devices can be fed into the seed inlets of the seed sowing single bodies through the connecting hoses, and as the connecting hoses can be freely bent, the seed sowing devices do not need to be arranged right above the seed sowing single bodies, so that a plurality of seed sowing devices can be intensively arranged together; therefore, the mass and the size of the seeding device are effectively reduced, transportation and storage are convenient, transmission is simple, and efficiency is high.

The invention relates to the technical field of anti-deformation machining of thin-walled cylinders, and discloses an intelligent anti-deformation machining device for a thin-walled cylinder and a using method of the intelligent anti-deformation machining device. The device comprises a base, a supporting mechanism, a clamping height adjusting mechanism, a self-adaptive clamping mechanism and a positioning clamping head, the clamping height adjusting mechanism is arranged on the base, the supporting mechanism is arranged on the periphery of the clamping height adjusting mechanism, and the self-adaptive clamping mechanism is arranged on the clamping height adjusting mechanism and located above the supporting mechanism. A positioning clamping head is arranged on the self-adaptive clamping mechanism, and a displacement sensor and a pressure sensor are arranged on the self-adaptive clamping mechanism and the positioning clamping head respectively; according to the using method, the height of the self-adaptive clamping mechanism is adjusted through the clamping height adjusting mechanism, the thin-walled cylinder is fixed through the self-adaptive clamping mechanism and the positioning clamping head, and deformation and clamping force of the thin-walled cylinder are detected through the displacement sensor and the pressure sensor respectively. Deformation of the thin-walled cylinder in machining is effectively prevented.

The invention relates to a ship ultra-high pressure water rust removal and wall-climbing cleaning equipment, comprising a cleaning disc, a first rotating wheel, a second rotating wheel and a third rotating wheel of a hub motor type arranged outside the cleaning disc, a magnetic adsorption component and a rotatable ultra-high pressure nozzle component are arranged on the cleaning disc, a first driving mechanism for driving the first rotating wheel and the second rotating wheel to synchronously change direction is arranged between the first rotating wheel, the second rotating wheel and the cleaning disc, a second driving mechanism for driving the third rotating wheel to change direction is arranged between the third rotating wheel and the cleaning disc, a shock absorbing mechanism is arranged between the first rotating wheel, the second rotating wheel and the first driving mechanism, and between the third rotating wheel and the second driving mechanism, a third driving mechanism for driving the second rotating wheel to change direction is arranged between the second rotating wheel and the shock absorbing mechanism, based on the ultra-high pressure water rust removal, a rotating wheel type is adopted to replace a crawler type structure, and a shock absorbing mechanism is carried to obtain better space utilization, which is beneficial to automation efficiency and stability, and meets the application requirements of green ship repair surface treatment.

The invention discloses an insulating pull rod lightweight design method based on a multi-objective optimization algorithm, and aims to solve the problems of heavy weight and heavy workload of a bearing tool in hot-line work of an ultra-high voltage transmission line. The method comprises the following steps: setting electrical and mechanical property parameters of the insulating pull rod; then, a three-dimensional model is built through SolidWorks, and finite element analysis is carried out through COMSOL; then, an optimized data set is obtained through joint simulation of MATLAB, COMSOL and SolidWorks; secondly, establishing a mathematical optimization model, solving by adopting a particle swarm-grey wolf optimization algorithm, and improving the algorithm through Sine-Tent-Cosine chaotic mapping population initialization and a crisscross strategy; and finally performing simulation verification on the optimization scheme. The device is applied to the lightweight design of large-load insulating force-bearing tools, effectively shortens the development period of the tools, saves the production cost, improves the safety coefficient of hot-line work, and remarkably reduces the workload of hot-line workers.

The invention discloses a hard rock stratum presplitting auxiliary crushing device and method, belongs to the field of rock stratum presplitting, and aims to solve the problem that an existing presplitting auxiliary crushing device is low in presplitting quality and efficiency. Through the mounting base, an electric push rod A, a main connecting plate, an upper connecting plate, a knocking plate, a half gear and a main disc, when a drill bit is in a rotating state all the time, due to the fact that the half gear is provided with a half circle of teeth, a toothed plate and the upper connecting plate only move upwards by a certain distance in the upward moving process, and then move downwards due to gravity; according to the device, the knocking plate is arranged on the surface of the rock stratum, so that the knocking plate can knock down the surface of the rock stratum, the surface of the rock stratum is knocked and pre-split by knocking, and the knocking plate can also knock and pre-split the surface of the rock stratum when the drill bit is used for drilling and pre-splitting the rock stratum, so that the looseness between drill holes can be improved, and subsequent construction is more convenient; and the overall working efficiency and working quality are indirectly improved.

The invention relates to the technical field of welding materials, in particular to a high-efficiency deposited nickel-based welding wire capable of preventing welding cracks based on phase regulation and application of the high-efficiency deposited nickel-based welding wire, and the nickel-based welding wire comprises the following chemical components in percentage by weight: less than or equal to 0.03% of C, 0.10-0.20% of Si, 2.9-3.2% of Mn, and 1t of P; 0.005%, S: lt; 0.003% of Cu, 19.7-20.5% of Cr, less than or equal to 0.04% of Co, and 1t of Cu; the Ni-based alloy comprises the following components in percentage by weight: 0.10% of Ni, 0.3-0.6% of Ti, 0.4-2.0% of Fe, 2.1-2.9% of Nb, less than or equal to 0.3% of Mo, less than or equal to 0.01% of N, less than or equal to 0.005% of O, less than or equal to 0.50% of other impurity elements and the balance of Ni. The specific value of Ti to Nb is controlled to be 0.10-0.22, the specific value of C to Nb + Ti is controlled to be 0.012 or below, appropriate morphology and distribution of (Nb, Ti) C type intergranular precipitates are obtained, precipitation of grain boundary M23C6 is reduced, and the creep resistance and high-temperature deplasticity crack resistance of the material are effectively optimized.

The invention belongs to the technical field of construction waste treatment, and discloses a construction waste crushing treatment device for house building construction. Comprising a crusher body and a base; the top end of the base is fixedly connected with a conveying frame through multiple sets of elastic sheet plates. The feeding end of the conveying frame communicates with the discharging end of the pulverizer body through a hose. A strong magnetic roller is installed in the conveying frame, a driving mechanism is installed between the base and the conveying frame, and materials in the conveying frame are conveyed in a vibrating mode through matched use of the driving mechanism and an elastic piece plate. A shifting mechanism is mounted between the base and the conveying frame, and metal fragments adsorbed on the strong magnetic roller are shifted to one side of the conveying frame through the shifting mechanism; according to the device, metal fragments adsorbed on the strong magnetic roller can be effectively removed, and the metal removal efficiency and accuracy are improved.

The invention discloses a weaving process of a single-guide woven fabric, which comprises a fabric weaving process, and the fabric weaving process comprises the following steps: arranging first weft yarns and second weft yarns on the same horizontal plane, and respectively interweaving the first weft yarns and the second weft yarns with warp yarns; the first weft yarns and the warp yarns are hydrophilic yarns; the second weft yarns are hydrophobic yarns; the second weft yarns and the warp yarns are interwoven at intervals to form floating threads below the warp yarns; the interweaving points of the first weft yarns and the warp yarns on the peripheries of the floating threads are larger than those of the second weft yarns and the warp yarns, so that the floating threads are extruded to protrude on the back surface of the fabric to form protruding areas; by the adoption of the technical scheme, a tighter and more stable fabric structure can be formed, the quality problem caused by the loose texture of the single-guide woven fabric is reduced, and the product quality is improved.

The invention provides a standardized experiment method and device for a rock mechanics experiment, and the method comprises the steps: collecting a plurality of conventional rock mechanics experiment schemes, determining a plurality of experiment characteristics of each experiment, and splitting links of each conventional rock mechanics experiment according to the plurality of experiment characteristics; according to the standard format corresponding to each experiment feature, storing each experiment feature of each experiment into a corresponding storage file to generate a standardized description of the rock mechanics experiment; performing matching analysis on each experiment characteristic of the target sample and the standardized description, and determining a target experiment type corresponding to the target sample; and extracting a corresponding experiment scheme from the standardized description according to the target experiment type, and performing an automatic experiment on the target sample to obtain the mechanical index of the target sample. The method is based on standardized experimental scheme description, can carry out batch and automatic rock mechanics experiments, improves the experiment efficiency, and reduces the experiment cost.

The invention relates to the technical field of non-standard automation, in particular to full-automatic lock catch feeding, injection molding and transferring equipment which comprises a feeding mechanism, a plate placing mechanism, a material taking mechanism, an injection molding mechanism and a discharging and transferring mechanism. The feeding mechanism comprises a fixed shaft feeding assembly and a shaft sleeve feeding assembly, the fixed shaft feeding assembly is used for locking fixed shaft feeding, and the shaft sleeve feeding assembly is used for locking shaft sleeve feeding; the wobble plate mechanism comprises a wobble plate mechanical arm, a wobble plate driving assembly and a wobble plate material frame, the wobble plate mechanical arm is used for grabbing the locking fixed shaft and the locking shaft sleeve on the fixed shaft feeding assembly and the shaft sleeve feeding assembly respectively and placing the locking fixed shaft and the locking shaft sleeve on the wobble plate material frame for positioning and placing, and the wobble plate driving assembly is used for driving the wobble plate material frame to rotate. The placed locking fixing shaft and the locking shaft sleeve face the injection molding mechanism; full-automatic lock catch feeding, injection molding, taking and transferring are achieved, manpower and material resources are saved, and the production efficiency is improved.

The invention discloses a remote control anti-delay video transmission method based on a future scene generation network. The remote control anti-delay video transmission method comprises the following steps: synchronizing time references of a remote control vehicle and a remote cockpit; original video stream data of the environment where the remote control vehicle is located is collected; adding a camera number and timestamp information into the original video stream data; preprocessing the decoded video stream data to generate a plurality of paths of future scenes; generating multiple paths of future scene video stream data; camera numbers and timestamp information are added to the multiple paths of future scene video streams; decrypting, decoding and distributing the data; performing packet loss and time delay detection on the original video stream data, and performing visual quality optimization on the future scene video stream data; and a complete and continuous video stream is formed. According to the method, the delay in video transmission is greatly reduced, and the video content at the future moment can be predicted and generated in advance in future scene generation, so that the video blank possibly occurring due to transmission delay or data packet loss is effectively filled.

The invention discloses an oxygen-free copper rod up-drawing continuous casting take-up device, and relates to the technical field of oxygen-free copper take-up. Comprising a driving table and a support, the support is arranged at the top of the driving table, a driving mechanism is arranged in the driving table, a reciprocating lead screw is transversely arranged on one side of the support, a sliding block is movably installed on the outer side of the reciprocating lead screw, a guide assembly is arranged at the bottom end of the sliding block, and the guide assembly comprises a wire guide block; a guide plate is arranged on one side of the support and located below the reciprocating lead screw. A storage pipe, a straight pipe, an inclined opening and a push rod are arranged in the guide assembly, so that the ball can be replaced without detaching a wire guide block. In the transmission process of the copper rod wire, when the balls are abraded, a new ball can be conveniently replaced into the copper wire guide hole by using the push rod, so that the transmission smoothness of the copper rod wire is ensured, and the equipment shutdown maintenance time caused by ball faults is reduced.

The invention relates to the technical field of electric energy optimization, and provides a micro-grid electric energy quality optimization treatment method and system. The method comprises the following steps: establishing a micro-grid model which comprises a power generation unit, an adjusting unit and a load group; setting a governance interval, and predicting a power generation power curve and a power utilization power curve in the governance interval; according to the power generation and utilization power curve, simulating to obtain an electric energy quality analysis value of the micro-grid; calling electric energy quality multi-dimensional constraints and judging an analysis value; when the constraint is not met, a control scheme is generated according to the power generation and utilization power curve in combination with an adjusting unit; and according to the control scheme, controlling the power generation and regulation unit in the treatment interval to supply power to the load group. The technical problem that the electric energy quality of the micro-grid is difficult to guarantee under the conditions of complex load requirements and unstable power generation is solved, and the effects of optimizing the electric energy quality of the micro-grid and guaranteeing the power utilization requirements of the industrial park through the multi-mode adjusting unit and accurate matching of the generated power and the load power are achieved.

The invention discloses an impact type rotating wheel hollow water bucket structure and a manufacturing method thereof, and relates to the technical field of hydroelectric power generation, in particular to the manufacturing method of the impact type rotating wheel hollow water bucket structure, which comprises the following steps: S1, preparing an impact type rotating wheel hub and a water bucket root solid area through forging, milling, polishing and other process means; s2, calculating a water bucket hollow part model through the working stress of the rotating wheel; and S3, the prepared rotating wheel hub is clamped to a positioner, and according to the model calculated in the above steps, the additive manufacturing of the rotating wheel hollow water bucket is achieved by continuously and cooperatively adjusting the spatial position of the rotating wheel and the posture of a welding gun. The invention has the advantages of reducing the weight, improving the stability, reducing the inertia, prolonging the service life, saving the cost, promoting the sustainable development, optimizing the structural design, improving the performance, improving the efficiency, reducing the energy consumption, being convenient to manufacture and maintain and enhancing the adaptability.

The invention relates to inductance coil welding equipment. The inductance coil welding equipment comprises a feeding system, a solid-state welding device and a laser welding device; the laser welding device is arranged behind the solid-state welding device, the feeding system is used for sequentially conveying an inductance coil and a guide piece to the solid-state welding device and the laser welding device, and the solid-state welding device is used for pre-welding and fixing the inductance coil to the guide piece to form a welded inductance guide piece; the laser welding is used for conducting repair welding on the welding position of the inductance coil and the guide piece.

The invention relates to an ocean temperature difference energy driven buoy autonomous power generation hydraulic system and a working method thereof, and belongs to the technical field of hydraulic systems. The power generation hydraulic system comprises a rubber leather bag, an energy accumulator, a pilot control valve bank, a turbine shaft assembly, a power generator, an oil tank, an upper pressure-resistant shell, a lower pressure-resistant shell and an integrated end cover, the upper pressure-resistant shell and the lower pressure-resistant shell are connected in a sealed mode through the integrated end cover, and the pilot control valve bank, the turbine shaft assembly and the oil tank are arranged on the upper side of the integrated end cover; the turbine shaft assembly is connected with a generator, a rubber bag is arranged on the lower side of the integrated end cover, an energy accumulator is arranged in the rubber bag, the space between the energy accumulator and the rubber bag is filled with hydraulic oil, and the space between the rubber bag and the lower pressure-resistant shell is filled with a phase change working medium. The pilot control valve group is designed, the opening pressure is set by an external mechanical spring, an oil way is automatically conducted after the opening pressure is reached, the energy loss between an oil inlet and an oil outlet is extremely small, and the advantages of no electric energy consumption and low failure rate are achieved.

The invention relates to the technical field of isocyanate reaction, and discloses a reaction device for preparing o-tolyl isocyanate and a reaction method thereof.The reaction device comprises a reaction box, a cleaning and stirring mechanism is arranged in the reaction box and used for stirring and cleaning crystals adsorbed on the inner wall, an intermittent conveying mechanism is arranged on one side of the cleaning and stirring mechanism, and the intermittent conveying mechanism is arranged on the other side of the cleaning and stirring mechanism. The phosgene intermittent conveying device is provided with a clean stirring mechanism for intermittently conveying phosgene, the clean stirring mechanism is provided with a pressing discharging mechanism for pushing isocyanate to be rapidly discharged, it is guaranteed that reactants are evenly distributed in the whole reaction mixture through stirring, the local concentration is prevented from being too high or too low, and therefore the overall reaction efficiency and the product quality are improved; according to the reaction device, crystals can be shoveled down from the wall surface during stirring, the service life of the reaction device is prolonged, meanwhile, communication of the exhaust pipe is intermittently cut off, a communication hole in one side of the intermittent rotary table is communicated with the exhaust pipe, and the concentration of reactants in a reaction mixture can be adjusted by intermittently cutting off conveying of phosgene, so that the reaction rate is controlled.

The utility model relates to a five-degree-of-freedom bed body fixed type puncture robot, and belongs to the field of medical instruments. The puncture robot comprises a gear transmission mechanism, a linear mechanism, a connecting rod mechanism and a puncture module. The connecting rod mechanism comprises a track driving end support, a first linear motor, a second linear motor, a third linear motor, a moving end spherical hinge support and a track driven end support. The gear transmission mechanism drives the connecting rod mechanism to rotate along the arc-shaped track to adjust the transverse position of the puncture robot; the second linear motor moves back and forth to adjust the back-and-forth position of the puncture robot; the second linear motor drives the lower part of the linear mechanism to transversely move to adjust the transverse and longitudinal corners of the puncture robot; the linear mechanism comprises a fourth linear motor, and the fourth linear motor drives the whole puncture module to perform needle insertion motion; and the puncture module is used for realizing rotation and extraction actions of a puncture needle. The device is compatible with CT for use, and performs five-degree-of-freedom movement according to accurate positioning of the CT, so that accurate puncture of the puncture needle is ensured.

The invention discloses a semi-conductive water-blocking binding tape containing water-blocking powder and a preparation device of the semi-conductive water-blocking binding tape, and particularly relates to the technical field of cable materials.The preparation device comprises a raw material supply system, a coating system, a powder scattering system and a drying and curing system.The coating system comprises a coating rack, and a base material roll, a coating head and a supporting roller set are arranged on the coating rack; a conveying pipeline of the raw material supply system is connected to the coating head, the powder scattering system is used for applying water-blocking filler to the substrate, and the preparation device further comprises a hair smoothening assembly which is used for forming airflow penetrating through the substrate on the substrate. According to the invention, the problem that the quality of a coating layer is influenced due to the prominent tiny fluff structure can be greatly reduced, and the binding product prepared by the invention has the advantages of strong hygroscopicity, large expansion rate, reliable water blocking effect, small product resistance and good semi-conductive performance, can effectively weaken the electric field intensity after being applied to a cable, and is low in production cost and stable in technical performance.

The invention discloses a full-size wind tunnel high-load blade, which relates to the technical field of wind tunnel equipment and comprises a metal blade root, a hollow main beam and a blade body, a main beam connecting section is arranged at one end of the metal blade root, and the side wall of the main beam connecting section is a first conical side wall surface; the large opening end of the first conical side wall face is closer to the end, provided with the main beam connecting section, of the metal blade root than the small opening end of the first conical side wall face. The hollow main beam is formed by wrapping a carbon fiber cloth layer; a blade root connecting section is arranged at one end of the hollow main beam and fixedly arranged on the main beam connecting section in a sleeving mode. The inner side wall of the blade root connecting section is a second conical side wall face, and the second conical side wall face is attached to the first conical side wall face. The blade body is made of a carbon fiber material; and the blade body is fixedly arranged on the hollow main beam. The lightweight design degree of the blade is improved, and the lightweight effect of the blade structure is achieved.

The invention relates to the field of high polymer materials, and provides a preparation method and application of composite halogen-free high-phosphorus-content flame-retardant polyester aiming at the problems of non-uniform component dispersion and poor anti-dripping effect of the composite flame-retardant polyester. The preparation method comprises the following steps: mixing dihydric alcohol, terephthalic acid, a catalyst, esterification liquid of the reaction type phosphorus flame retardant and the reaction type nitrogen flame retardant, sequentially carrying out esterification reaction and polycondensation reaction to obtain a melt, and treating the melt to obtain the composite halogen-free high-phosphorus-content flame-retardant polyester. The invention also provides application of the flame-retardant polyester. According to the invention, the reactive phosphorus flame retardant participates in the polyester polymerization process, so that the influence on the molecular regularity of polyester is small, and the crystallization behavior and post-processing performance of slices are not influenced; the apparent viscosity of the polyester is improved by the modified nitrogen flame retardant, the polycondensation time is greatly shortened, and the polyester with lasting flame-retardant effect and good anti-dripping effect is obtained by compounding multiple halogen-free flame retardants.

The invention discloses a Z-axis motion platform and a use method. Wherein the Z-axis motion platform comprises a bottom plate, an adsorption mechanism, a jacking mechanism, a guide mechanism and a driving mechanism; the adsorption mechanism comprises an electrostatic chuck, the jacking mechanism can move in the Z-axis direction and is used for jacking off a wafer on the electrostatic chuck, the driving mechanism is used for providing moving driving force for the jacking mechanism, and the guiding mechanism is arranged between the jacking mechanism and the bottom plate and is used for guiding when the jacking mechanism moves in the Z-axis direction; the guide mechanism comprises a fixed support, a sliding block, a sliding rail, an elastic piece and a movable support. The fixed support is connected with the bottom plate, the sliding block or the sliding rail is fixed to the fixed support, the movable support is connected with the jacking mechanism, the sliding rail or the sliding block is fixed to the movable support, and the elastic piece is used for providing reset force for the movable support to move to the low position. The Z-axis motion platform has the advantages of being high in motion precision, good in stability, low in installation and adjustment difficulty, small in mass and the like, and the problems of motion clamping stagnation, low return speed and the like can be prevented.

The invention relates to the technical field of tactile immersion, and provides a tactile display architecture based on a beam network, the tactile display architecture comprises a beam device, a driving device and a distance limiting device, the beam device comprises a supporting part and an action beam, at least one end of the action beam is slidably connected with the supporting part, and the supporting part is provided with a plurality of first position points; the driving device drives the end part of the action beam to slide; the distance limiting device comprises first pulling ropes and a first winding and unwinding mechanism, and the position, opposite to each first position point, on the action beam corresponds to one first pulling rope so as to limit displacement of the corresponding position on the action beam. Thus, the shape output of the action beam can be accurately controlled through the driving device and the distance limiting device, the distance limiting device is arranged to be in the form of a traction rope, it can be guaranteed that the action beam has large displacement, and the position of the first retracting and releasing mechanism can be conveniently arranged. The action beam serves as a display area, the first folding and unfolding mechanism can be arranged outside the display area, the influence of the distance limiting device on the thickness of the display area is avoided, sufficient force feedback is ensured, and the light and thin design is promoted.

The invention discloses a design method of a bending detonation combustion chamber with a V-shaped passivated front edge, and belongs to the field of hypersonic velocity detonation engines of aircrafts. The oblique detonation engine aims at solving the problems of an existing oblique detonation engine in the aspects of detonation, standing, mixing and the like. According to the method, by determining the temperature increasing amplitude of the V-shaped front edge, the distance and flow parameters of a detached shock wave are determined by using a two-dimensional detached shock wave theory, the geometrical shape and interference type of a bent shock wave are determined based on a bent shock wave theory, and the crotch shape of the passivated V-shaped front edge is determined. And finally, constructing a geometric model and a combustion chamber geometric model according to the passivation angle and curvature of the V-shaped front edge. According to the method, the length of the engine can be effectively shortened, the formation and stability of detonation waves are improved, effective standing of the detonation waves is achieved, and normal work of the engine is guaranteed. The combustion chamber has the advantages of saving space, being easy to detonate, compact in structure and the like, and is suitable for a propelling system of a hypersonic aircraft.