18results about How to "Improve dynamic stability" patented technology

This invention relates to the field of precision mechanical control technology, specifically to a method based on a magnetoelectric converter and linearity control. The method includes: acquiring raw magnetic induction data through a magnetoelectric converter; obtaining a three-dimensional magnetic field distribution through electromagnetic field spatial mapping and extracting the axial gradient vector field; constructing a virtual magnetic streamline model based on this to identify local disturbance regions where magnetic field distortion exceeds a threshold; performing multi-scale time-frequency analysis on the data in this region to separate high-frequency fluctuations caused by mechanical vibration and low-frequency drift components caused by thermal deformation; inputting the two components into a cross-coupled compensation decision network to generate high-frequency suppression commands and low-frequency compensation trajectories, which are then merged to form a comprehensive drive signal for compensation. This method can accurately locate the source of linearity disturbance and perform targeted decoupling control of errors from different physical sources, improving control accuracy and stability under complex operating conditions.

The application relates to the technical field of robots, and discloses a kind of two-degree-of-freedom parallel ankle joint mechanism of humanoid robot and kinematics and mechanics solving method, including seven-link transmission structure, which is composed of two groups of closed-chain transmission of parallel four-bar linkages.Motor I and II are installed on the upper end of the lower leg, and the rotation drives link IV and III to move through link I, II, V and VI, and then coupled control ankle joint pitch and lateral freedom degree.The mechanism realizes load balancing of double motors through parallel transmission, improves equivalent torque, and can combine kinematics and mechanics solving method, so that precise control can be realized only by motor feedback, sensor cost is reduced, and is suitable for high stability motion demand of biped robot.

The application discloses an anti-deformation crown-shaped cage of a super-speed motor bearing and a manufacturing method, and belongs to the technical field of motor bearings. The anti-deformation crown-shaped cage of the super-speed motor bearing is printed by a functionally graded material, the functionally graded material comprises hard-phase material and soft-phase material, the hard-phase material is glass fiber, and the soft-phase material is nylon 66; the equivalent elastic modulus of the functionally graded material continuously and gradually changes along the axial direction from the bottom of the pocket hole to the end of the locking claw, so that the elastic modulus of the bottom area of the pocket hole is higher than that of the end area of the locking claw, and the ovalization deformation of the pocket hole and the centrifugal deformation of the locking claw are cooperatively inhibited; the functionally graded material is introduced to actively reconstruct the stiffness field of the crown-shaped cage; the toughness phase is constructed in the locking claw area to absorb collision energy, the reinforced phase is formed in the pocket hole area to weaken stress concentration, and the stiffness gradient is established at the connecting position to inhibit the umbrella effect; and the application provides the crown-shaped cage with the characteristics of high toughness, gradient and high strength and a design method thereof.

The present application relates to the technical field of pipeline construction, and provides a pipeline intelligent assembly robot and an automatic assembly method, the robot comprising: a mobile carriage provided with a plurality of supporting legs at the bottom, and each supporting leg is provided with a mobile pulley at the bottom; a mobile sliding rail provided on the top surface of the mobile carriage along the length direction of the mobile carriage; two sliding plates, each provided with a driving assembly and a lifting assembly, the driving assembly being used for moving the sliding plate along the mobile sliding rail; an image acquisition sensor provided on the sliding plate; an intelligent remote controller in communication connection with the driving assembly, the lifting assembly and the image acquisition sensor; wherein the lifting assembly is used for hoisting the pipeline, and the image acquisition sensor is used for acquiring the position information of the pipeline interface; the assembly method comprising: S1, transportation preparation; S2, visual positioning; S3, intelligent centering; S4, fixed evacuation; having the characteristics of compact structure, high assembly precision and high construction safety and efficiency.

The present application relates to the technical field of data processing, in particular to a data processing method and system based on unmanned aerial vehicle video and vector data fusion. By calculating the deviation of the predicted position and the actual detection position of each reference point in the image, the reference points with large errors are screened and the camera pose parameters are adjusted using the random consistency algorithm and the iterative optimization method to improve the projection accuracy and stability. Through grid division, corner detection and feature descriptor extraction, a reference point set is established, the parallax change standard deviation is introduced, and the unstable reference points with large fluctuations are removed to ensure the reliability of the pose solving process and the consistency of spatial registration. According to the registration and fusion of unmanned aerial vehicle video and vector geographic data, the problems of current vector element drift, occlusion determination difficulty and attitude error dynamic correction are solved, the spatial reality and dynamic stability of the augmented reality scene are enhanced, and the industrial needs of various application scenarios such as underground pipe network inspection are met.

The application discloses a flower-shaped solar photovoltaic module, which comprises a device base and a flower-shaped photovoltaic array, a plurality of cross support rods are arranged on the device base, one end of the cross support rods is connected to the device base, and the other end is connected to the flower-shaped photovoltaic array, the flower-shaped photovoltaic array comprises a flower center part and a plurality of petal parts, the petal parts are arranged outside the flower center part, and solar photovoltaic plates are arranged on the flower center part and the petal parts; in the application, the petal parts of the flower-shaped photovoltaic array are arranged outside the flower center part in a slanting angle direction and are overlapped, when the sunlight is directly incident, the effective light receiving area of the solar photovoltaic plates of the petal parts and the flower center part is completely unfolded, the three-dimensional overlapping structure makes the effective light receiving area greater than the plane occupied area, and the light coverage area can reach 120%-200% of the plane occupied area at noon.

The utility model relates to the field of hinge discloses a small size embedded hinge, including two sleeves, two sleeve all weld in the right side of female hinge, the inner wall of sleeve inserts with central axis, the right side of female hinge sets up sub hinge, the left side of sub hinge is welded with a plurality of connecting barrels, the connecting barrel corresponds with sleeve, the connecting barrel is equipped in the outer wall of central axis, two connecting frames are welded on the sub hinge, one end of connecting frame is welded with support cylinder, the support cylinder corresponds with connecting barrel, the support cylinder is equipped in the outer wall of central axis, in the utility model, through the cooperation of connecting frame, support cylinder and X-shaped support frame, can disperse stress through the principle of triangular truss when sub hinge bears axial load, forms multidirectional constraint when sub hinge is loaded, effectively prevents the bending and torsional deformation of sub hinge and connecting barrel under stress, and simultaneously spreads local stress to the whole of connecting frame.

The utility model relates to the technical field of planing and sanding machine, disclose a novel tool changing structure of planing and sanding machine, include: machine frame includes left side seat and right side seat, the upper end surface of left side seat is fixed with more than one slider, the upper end surface of right side seat is fixed with more than one slider, the upper cover plate is installed between left side seat and right side seat, the both sides of upper cover plate are equipped with the guide rail of cooperation with slider respectively, the both sides of upper cover plate are installed rotatable gyro wheel respectively, upper cover plate is equipped with bearing support on the front and back position, the front end and rear end of cutting main shaft are connected with bearing support respectively, the even setting planer blade is installed on cutting main shaft, the upper cover plate can be pulled relative to frame to replace the planer blade on cutting main shaft, the utility model discloses the extraction mode is convenient for planer blade replacement, and four -legged stand support increases structural stability.

This invention relates to the field of temperature control technology in refractory duct processing, and discloses an intelligent temperature control method and system for refractory duct processing. The method includes the acquisition and analysis of real-time temperature data and external environmental fluctuation data to achieve precise temperature control. The system analyzes temperature trends based on an initial temperature distribution map combined with a fuzzy rule base, identifies overheated areas, and adjusts the heating power. Power allocation is optimized through a multi-physics coupling model and historical processing data to generate a temperature equilibrium model. Further, by combining a temperature prediction model and feedback data, the power allocation is iteratively corrected to ensure a stable heating process and eliminate residual temperature differences, ultimately outputting a balanced heat distribution, improving material performance consistency and processing quality. This method can adjust power in real time to cope with dynamic changes in the external environment and material properties, thereby improving processing quality.

The application discloses a dual power bus transceiver with low dropout linear voltage regulator, a voltage conversion circuit and a display system. The dual power bus transceiver with low dropout linear voltage regulator comprises a first power pin for connecting a first power supply, a second power pin for connecting a second power supply, at least one first pin electrically connected to the first power supply and leading to an input port, at least one second pin electrically connected to the second power supply and leading to an output port, a third pin, a voltage conversion module comprising at least one voltage conversion unit, an input end of the voltage conversion unit being connected to the first power supply, an output end of the voltage conversion unit being connected to the second power supply, and a low dropout linear voltage regulator connected to the third pin.

This invention discloses a three-phase voltage regulator and its control method under wide voltage variations, relating to the field of voltage regulation technology. It includes a controller, a mechanical bypass switch, an input switch, an output switch, an independent electronic bypass switch for each phase, an input filter, two sets of series power supplies, a parallel power supply, and an output filter. After commissioning, the mechanical bypass switch, input switch, and output switch are closed, and then the electronic bypass switch is turned on. During normal operation, the mechanical bypass switch is disconnected, the electronic bypass switch is turned off, and robust voltage regulation control is activated to ensure normal user voltage. In case of a fault, the series and parallel power supplies are turned off, the electronic bypass switch is quickly turned on, and the mechanical bypass switch is closed. Then, the input and output switches are disconnected, and the user voltage is supplied by the mechanical bypass switch, achieving seamless power supply switching. Finally, the device exits operation and triggers an alarm. This invention has advantages such as high output voltage accuracy, good dynamic stability, and independent three-phase regulation.

The utility model discloses a graphite raw material crushing and screening integrated equipment relates to crushing and screening equipment technical field, aiming at the problem of unsatisfactory screening effect, screen mesh dismounting and cleaning difficulty and the need of material in crushing and screening process to transport many times in the prior art, present and propose the following scheme, including fixed box, the top side of fixed box is hinged with the box cover, and the top of box cover is inserted with the feed pipe, the both sides inner wall of fixed box is installed with the crushing mechanism, and the crushing mechanism includes crushing subassembly and filter component. The utility model discloses an integrated crushing mechanism and filter component in fixed box, realizes the crushing and screening integration operation of graphite raw material. Crushing subassembly adopts the crushing roller of interlocking, can crush raw materials evenly, and filter component cooperates through screen cloth and baffle, and real -time screening qualified particle avoids the efficiency loss and dust pollution of material transfer in traditional equipment.

The application discloses a leaf spring bearing point vehicle body reinforcing structure, which comprises a rear longitudinal beam body, a leaf spring hanging front support arranged on the rear longitudinal beam body and a reinforcing pipe beam arranged on the leaf spring hanging front support; the reinforcing pipe beam is transversely arranged and penetrates through the mounting holes of the left and right leaf spring hanging front supports, and the two ends of the reinforcing pipe beam are respectively welded and fixedly connected with the left and right leaf spring hanging front supports, and the reinforcing pipe beam is located below the rear longitudinal beam body. The leaf spring bearing point vehicle body reinforcing structure of the application can improve the overall performance by optimizing the design of the vehicle body reinforcing structure, improve the overall dynamic stiffness of the vehicle body, strengthen the fatigue resistance and dynamic stability of the mounting point area, and meet the high performance requirements of commercial vehicles on the leaf spring system mounting point. The application further discloses a vehicle and a manufacturing method of the leaf spring bearing point vehicle body reinforcing structure.

This invention relates to the field of blast furnace cooling systems, specifically to a cooling system and intelligent control method for high heat load zones in blast furnaces. The system includes: cooling walls, refractory bricks, copper cooling elements, a composite packing layer, and an intelligent control unit. Copper cooling elements are spaced apart in the gaps between adjacent cooling wall sections, with the hot surfaces of the copper cooling elements receding inwards relative to the hot surfaces of the cooling walls. The composite packing layer fills the gaps between the copper cooling elements and the cooling walls, comprising a high thermal conductivity packing area and a low thermal conductivity packing area. The high thermal conductivity packing area is located at the mating gap between the copper cooling elements and the cooling walls, while the low thermal conductivity packing area is located on the hot surface side of the copper cooling elements. The intelligent control unit acquires slag skin condition information from the slag skin adhesion zone and dynamically adjusts the cooling parameters flowing through the copper cooling elements based on this information. This invention can improve system heat transfer efficiency and achieve proactive and precise control of slag skin thickness and long-term stability of the blast furnace internal structure.

This invention discloses a predictive control method and system for shore power wireless charging based on a digital twin model, relating to the field of shore power access for berthed vessels. The method first constructs a digital twin model of the target vessel, including a vessel kinematics sub-model, a wave disturbance sub-model, and a coupling coefficient mapping sub-model. Real-time motion attitude data and environmental wave data of the target vessel are acquired. The acquired data is then input into the digital twin model to map the coupling coefficient change trajectory. Finally, the coupling coefficient change trajectory is used as a feedforward quantity, combined with current electrical state parameters, to construct a model predictive control optimization problem. The optimal control quantity sequence is solved, and the first control quantity is output to the shore power wireless charging device to compensate in advance for the impact of coil offset caused by vessel motion on transmission efficiency. This achieves accurate prediction and proactive compensation for coupling coefficient changes caused by vessel motion, significantly improving the transmission efficiency and dynamic stability of shore power wireless charging.

The application discloses a kind of high anti-sputtering drainage asphalt mixture and preparation method thereof, it is related to bitumen technical field.The raw materials of asphalt mixture include matrix asphalt, styrene-butadiene-styrene block copolymer, butyronitrile rubber microsphere, carboxyl silicone oil, composite modified aggregate, composite additive, graphene oxide mixed solution, calcium lactate.The preparation method of asphalt mixture includes the steps of composite modified aggregate preparation, preparation of graphene oxide mixed solution, preparation of composite additive, and preparation of asphalt mixture.The drainage asphalt mixture prepared by the application has strong anti-sputtering performance, excellent drainage performance and good anti-rutting performance.

The utility model discloses a kind of roll scrapers, including blade main body, the blade main body includes working part and positioning part, working part and positioning part are about blade main body center symmetry, the positioning part one side is equipped with bottom mounting surface, the positioning part other side is equipped with rake face, main cutting edge and finishing edge are sequentially equipped on the rake face, multiple segmentation grooves are spaced apart and set on the rake face along finishing edge direction, the segmentation groove is separated into multiple independent finishing edge sections by finishing edge, and the groove direction of segmentation groove is perpendicular to blade feeding direction.The utility model is equipped with finishing edge segmentation groove, changes the cutting angle of main cutting edge, so that radial component force is less than axial component force, realizes low resistance cutting.