77results about How to "Achieve lightweight design" patented technology

The utility model provides a battery cell top cover and a battery, and relates to the technical field of lithium batteries. Specifically, the battery cell top cover comprises a cover plate, an upper pole and a lower pole, wherein the cover plate is provided with pole holes for accommodating the upper pole and the lower pole; the upper pole partially protrudes downwards to form a first groove, the lower pole partially protrudes upwards to form a second groove, and the bottom wall of the first groove is connected with the bottom wall of the second groove. Based on the arrangement of the first groove and the second groove, the weights of the upper pole and the lower pole are respectively reduced, and certain materials of the upper pole and the lower pole are saved, so that the lightweight design of the battery cell top cover is realized, and the manufacturing cost of the battery cell top cover is reduced at the same time.

The invention provides a cylinder body of a rotor type compressor pump body and a manufacturing method, and relates to the technical field of compressors, the inner circumferential wall of the cylinder body is provided with an air suction part used for air suction and a sliding sheet seat used for containing a sliding sheet, and the cylinder body is formed by compounding an insert and a light material; a slip sheet seat is formed in the insert, the requirement for wear resistance of the slip sheet in the slip sheet seat is met, an air suction part is formed in the insert, and the requirements for coaxiality and connection strength of the air suction part and the air suction pipeline are met; materials, except the inserts, of the cylinder body are replaced by light materials, so that the light-weight design of the cylinder body can be realized under the condition that the wear resistance and the coaxiality are met; compared with the prior art, a sliding sheet seat and an air suction part in a cylinder body can only be machined one by one, and more than ten or even dozens of inserts such as a sliding sheet seat insert or an integrated insert or an air suction seat insert can be machined at a time, so that large-scale production and machining can be performed, the production efficiency can be improved, and the consistency of product quality can be ensured.

The invention belongs to the technical field of remote sensing, and particularly relates to a nuclear power plant surrounding ground feature element extraction method based on deep learning, and the method comprises the steps: 1, making a nuclear power plant surrounding ground feature deep learning sample; step 2, based on the HRNet model, constructing a Mama attention residual module, an inner convolution residual module and an asynchronous convolution residual module through Mama, inner convolution and heterogeneous convolution, and constructing an improved HRNet model; 3, training of a U-Net model, a Deeplabv3 model, a HRNet model, a Swin Transformer model and an improved HRNet model is completed through the sample set training data and the verification data; 4, evaluating land element extraction results of different deep learning models; and 5, extracting elements of the surrounding land of the large-scale nuclear power plant by using the trained improved HRNet model. The method can effectively improve the extraction precision of complex ground feature elements around the nuclear power plant, remarkably improves the calculation efficiency of the model, and is suitable for efficient monitoring and classification of multiple ground feature elements around the nuclear power plant in a large range.

The invention relates to the field of jumping robots, in particular to a hydraulically-driven two-degree-of-freedom coupling type humanoid-leg jumping robot and a control method thereof. The overall structure of the robot simulating jumping of the human legs is composed of a driving assembly, a thigh assembly and a shank assembly. The designed jumping robot is simplified into an SLIP model, a PID controller is adopted in the jumping process to achieve control over the flying phase of the jumping robot, and a PD controller is adopted in the landing phase for control. The hydraulic cylinders are far away from the legs, so that the hydraulic cylinders are driven to move to the upper body, and the whole robot has better attractiveness. And meanwhile, the lightweight design of the legs is achieved, the inertia of the legs is reduced, and the robot has more stable dynamic performance. And the vertically placed hydraulic cylinder is designed, so that the driving efficiency is further improved, and finally, more efficient bionic jumping movement is realized.

The present invention relates to the technical field of manipulators, and specifically discloses a fast-response rope-driven adaptive two-finger gripper, comprising a transmission mechanism, a drive mechanism, a linear guide mechanism, a first clamping finger, a second clamping finger, a rope guide assembly, a differential rope winding wheel and four fixed-axis rope winding wheels; the differential rope winding wheel has a first rope, a second rope, a third rope and a fourth rope; the four fixed-axis rope winding wheels are configured to correspond to the first rope, the second rope, the third rope and the fourth rope one by one; the swing of the transmission mechanism can drive the linear motion of the first clamping finger and the second clamping finger; the rotational direct-drive differential motion is realized by two groups of antagonistic rope pairs, when the tension formed by the four ropes is balanced with each other, the two groups of ropes move in the same way, however, when the tension of the two groups of antagonistic rope pairs is unbalanced, the rope tension difference directly drives the differential wheel to rotate, thereby avoiding the problems of gear transmission friction and large rotational inertia in traditional technologies, and reducing the response delay caused by static friction.

The invention belongs to the technical field of rocket launching, and particularly relates to a rocket fairing noise reduction method and device and a storage medium. The method comprises the following steps: acquiring a noise signal; performing spectral analysis on the acquired noise signal by adopting fast Fourier transform to obtain a frequency domain signal, the frequency domain signal comprising amplitude and phase information under different frequency components; setting a boundary of each frequency band, extracting feature information of each frequency band, and extracting noise components of each frequency band according to the feature information of each frequency band; the noise reduction strategy of each frequency band is optimized through an artificial bee colony algorithm, and the optimal frequency and amplitude of the anti-phase sound waves of each frequency band are obtained; and according to the output of the artificial bee colony algorithm, anti-phase sound waves are generated, and active noise reduction is carried out on the fairing. According to the method, the overall noise reduction performance of the fairing can be improved, the response speed is high, the requirement for computing resources is low, and the method is suitable for scenes with strict requirements for time and resources in rocket launching scenes.

The invention relates to a conductive and electromagnetically shielding polyaryletherketone-based composite material and a preparation method thereof, comprising the following steps: S1, forming a mixed dispersion of a carbon-based MFI structure molecular sieve and a metal salt, and performing a heating reaction to obtain a loaded carbon-based MFI structure molecular sieve; S2, uniformly mixing the loaded carbon-based MFI structure molecular sieve and polyaryletherketone, and then performing melt blending, extrusion, and granulation to obtain a first material; S3, uniformly mixing a conductive filler and polyaryletherketone, and then performing melt blending, extrusion, and granulation to obtain a second material; S4, mixing the first material and the second material according to a proportion, and then performing melt blending, extrusion molding or granulation to obtain a conductive and electromagnetically shielding polyaryletherketone-based composite material; the composite material of the invention has significant electromagnetic shielding effectiveness and excellent comprehensive mechanical properties.

The present application relates to a kind of integrated force arm structure, double rear axle suspension system and its vehicle, it includes: first force arm, the first force arm has first body, and from the first body towards one side extends to form two first arms spaced apart, each the first arm is rotatably connected with pin shaft, two the pin shaft on the first arm coaxially arranged and interval distribution;Second force arm, the second force arm has second body, and from the second body towards the side close to the first force arm extends to form two second arms spaced apart, two the second arm is arranged with two the first arm one by one, and each the second arm is rotatably connected to the pin shaft corresponding with the first arm;The first body extends to form first axle connecting arm towards away from the second body direction, the second body extends to form second axle connecting arm towards away from the first body direction.Two force arms integrated connection, simple structure, realize lightweight design.

This invention relates to an integrated variable camber wing based on a piezoelectric-driven torsional cubic superstructure, comprising a wing skeleton and a skin. The wing skeleton includes multiple torsional cubic superstructures arrayed along the wing chord direction. Each torsional cubic superstructure is a cube formed by an array of multiple unit-cell torsional superstructures. Adjacent unit-cell torsional superstructures in the wing length and thickness directions share a straight rod, while adjacent unit-cell torsional superstructures in the wing width direction share four Z-shaped piezoelectric rods. Each unit-cell torsional superstructure is a cube formed by an array of four cell units, with adjacent cell units sharing a straight rod. Each cell unit includes Z-shaped piezoelectric rods and straight rods. Two Z-shaped piezoelectric rods are connected to the two ends of two straight rods. Each Z-shaped piezoelectric rod at both ends of the torsional cubic superstructure is connected to the skin. When all the Z-shaped piezoelectric rods of the unit-cell torsional superstructure undergo compressive deformation in the height direction, the unit-cell torsional superstructure undergoes torsional deformation, thus causing the torsional cubic superstructure to undergo torsional deformation. By converting the compressive deformation of the cellular unit into the torsional deformation of the compressive-torsional cubic superstructure, the wing camber is changed, and the drive components are eliminated, thus realizing the lightweight design of the morphing wing.

The utility model discloses a radiator, which relates to the radiator field, and comprises a support main body and a heat radiation assembly, the support main body comprises at least one support column, the support column extends along a first direction, and the first end of the support column is used for being connected with an external heat source; the heat dissipation assembly comprises a plurality of heat dissipation fins, the multiple heat dissipation fins are arranged outside the supporting body in a sleeving mode and distributed at intervals in the first direction, and at least one heat dissipation hole penetrates through each heat dissipation fin; wherein the support main body and the radiating fins are diamond aluminum alloy composite parts respectively; thus, the supporting body and the cooling fins have high thermal conductivity, the thermal conductivity can reach 400 W / (m.K) or above, the high-temperature resistance is improved to 600 DEG C, and the phenomenon of oxidation and falling is avoided, so that the reliability and durability of the radiator under complex working conditions are improved, and the lightweight design of the radiator is facilitated; at least one radiating hole penetrates through the radiating fin, so that the radiating area is increased, and the weight is further reduced; meanwhile, the multiple cooling fins are arranged at intervals, the heat exchange efficiency can be improved, and then the cooling efficiency is improved.

The utility model discloses a split type battery pack upper shell, the upper shell comprises a first cover plate and a second cover plate, the first cover plate and the second cover plate are detachably connected, one side of the second cover plate is provided with a lap joint edge, the lap joint edge is arranged above one side of the first cover plate, a sealing structure is arranged between the lap joint edge and the first cover plate, and the lap joint edge and the first cover plate are detachably connected. The split type battery pack upper shell is simple in structure and convenient to install, the number of fasteners is reduced, and the manufacturing cost is reduced.

The embodiment of the invention provides a joint module and a robot. The joint module comprises a shell, a driving mechanism and an output flange. The shell is of a cylindrical structure, the driving mechanism is arranged in the shell, and an output shaft of the driving mechanism penetrates through the end face of the shell; the output flange is arranged outside the shell, and the output flange is connected with an output shaft of the driving mechanism; the output flange is used for being connected with the first robot assembly, and the driving mechanism is used for driving the output flange to rotate so that the output flange can drive the first robot assembly to rotate. At least one first connecting structure is arranged on the outer side wall of the shell and used for being connected with a second robot assembly, and the included angle between the extending direction of the second robot assembly and the axis of the shell is larger than zero degree. At least one end of the shell is provided with a second connecting structure, the second connecting structure is used for being connected with a third robot assembly, and the extending direction of the third robot assembly is parallel to the axis of the shell. The joint module provided by the invention can be compatible with multi-direction installation.

The vehicle body structure disclosed in this application includes a roof, side walls, a chassis, and end walls. The top of the side walls is connected to the roof, and the bottom of the side walls is connected to the chassis. The end walls are located at both ends of the chassis extension direction and are connected to the roof and chassis, respectively. The roof, side walls, chassis, and end walls are all sandwich structures. Compared to existing vehicle body structures using plate-beam connections, the sandwich structure of this application significantly reduces the number of parts, thus reducing the weight of the vehicle body and achieving a lightweight design. It also reduces manual labor and improves the efficiency of automated production.

The invention discloses a multi-material topological optimization method for aircraft structure design, and belongs to the technical field of aerospace. The method comprises the following steps: establishing an expanded design area; carrying out grid division; establishing a material interpolation model; finite element analysis is carried out, and the sensitivity of objective function quality constraint conditions is obtained; sequentially updating the design field variable, the filtering field variable and the physical field variable, and applying implicit floating projection constraint; judging whether a convergence condition is met; performing smooth design; re-dividing the structure subjected to smooth design by using an original grid, and performing sensitivity analysis; and calculating an error value, judging whether an accurate smooth design condition is met or not, and if so, ending optimization and outputting an optimal structure. According to the method, under the condition that good convergence performance is guaranteed, material selection can be carried out in the topological optimization process, meanwhile, the iteration step number needed by topology is reduced through the three-field technology, optimization efficiency is improved, and the final structure has a clear and smooth boundary and can be directly used for manufacturing.

The utility model discloses a three -dimensional double ball type top machine core, relate to the technical field of watch machine core, the utility model aims at solving provides the problem of high endurance double ball top machine core, the utility model includes the bottom clamping plate, install the prime mover subassembly on the bottom clamping plate to be used for providing power source, the prime mover subassembly is connected with differential assembly, differential assembly is connected with two three -wheel parts, two three -wheel parts are connected on the bottom clamping plate through three -wheel clamping plate, three -wheel part is connected with ball top, the frame of multiple frames of ball top is inlaid setting, and the wall thickness of frame is 0.25mm.

The invention discloses a mechanical energy storage and release device and a thread trimming device. The mechanical energy storage and release device comprises a base; the movable part can move relative to the base; the energy storage part acts between the base and the movable part and is configured to store mechanical energy for driving the movable part to move; the state switching type locking mechanism has a first mechanical state and a second mechanical state; wherein in the first mechanical state, the state switching type locking mechanism introduces geometric constraint on a force application path of the energy storage component, so that the movable part resists the acting force of the energy storage component and is locked; the state switching type locking mechanism can be switched from the first mechanical state to the second mechanical state by applying an external triggering effect; and in the second mechanical state, the geometric constraint is relieved, and the energy storage part is released and drives the movable part to move.

The utility model discloses a solar tracking dolly based on composite transmission, comprising a dolly body and a dolly housing, the dolly housing is provided with a solar panel, when the dolly is under the condition of sufficient illumination, the solar panel converts light energy into electric energy and stores the electric energy in a capacitor bank; after being electrified, the trolley starts from the departure position determined by the positioning tail wing and runs according to a specified route, a motor is arranged in the trolley body, and a transmission structure is further installed in the trolley body. The transmission structure comprises a fixed shaft mounted on the lower surface of the vehicle body, a driven shaft mounted in the vehicle body, a one-way bearing mounted on the driven shaft, a gear transmission mechanism between a motor output shaft and the driven shaft, and a belt wheel transmission mechanism between the driven shaft and the fixed shaft; gear transmission, belt wheel transmission and cam transmission are combined together, the cam is directly driven by the first driven flange synchronizing wheel on the driven shaft, the left wheel is completely driven by means of inertia, the energy utilization rate of the trolley is further increased, and the continuous operation time of the trolley is further prolonged.

This utility model provides a seat support structure and a seat. The seat support structure includes a support plate with a hollow structure and a support member with a flanged structure. The support member is fixedly connected to both sides of the support plate. Each end of the support member has an upper end face and a lower end face. The upper end face can connect to the seat body, and the lower end face can connect to the floor. Thus, by using a support plate with a hollow structure, some non-load-bearing structures can be eliminated, reducing the weight of the support plate without affecting its mechanical strength. The support member with the flanged structure is fixedly connected to both sides of the support plate. Compared to traditional tubular and solid support structures, the support member with the flanged structure has a smaller structural weight while ensuring support stability, which helps to reduce the overall weight of the seat support structure and achieve a lightweight design.

The utility model relates to a battery cell top cover, which can improve the overall stability of the battery cell top cover by fixedly arranging a pole assembly in a top cover assembly. The accommodating groove communicated with the mounting guide hole is formed in the pole assembly, so that the material consumption of the pole assembly is successfully reduced, the weight of the pole assembly is reduced, the tab of the external battery cell can penetrate through the mounting guide hole and then enter the first accommodating cavity, and an accommodating space can be provided for the tab of the external battery cell. Through the arrangement, on the premise of realizing correct connection between the external battery cell and the battery cell top cover, the internal occupied space of the battery cell is also reduced, so that the lightweight design of the battery cell is better realized.

The application discloses a CTC system station display terminal implementation method based on a BS architecture, and aims to solve the problems that the existing CS architecture terminal cannot support the China security, cannot cross platforms, and data is dispersed and the like. The application adopts a two-level architecture of a server end and a browser end, the server end is adapted to a domestic chip and an operating system, and realizes permission management based on user roles and dynamic permissions; a station field diagram is drawn by adopting D3.js combined with SVG and a layered rendering mechanism; WebSocket and a timestamp-based incremental data synchronization algorithm are used to push the information change amount, and a disconnection reconnection and data retransmission mechanism is configured; and a geometric hash value is generated for station field diagram elements to accelerate interactive response. The application realizes cross-platform operation, centralized data storage, lightweight deployment and high real-time display, and can be widely applied to station field monitoring terminals of railway dispatching centralized control systems.

The utility model provides a side wall stand column structure and a vehicle, the side wall stand column structure comprises a side wall outer plate, a side wall reinforcing plate and a side wall inner plate which are connected together, and the side wall outer plate, the side wall reinforcing plate and the side wall inner plate are sequentially arranged from outside to inside in the width direction of the whole vehicle; a stand column reinforcing piece is connected between the side wall reinforcing plate and the side wall inner plate. The stand column reinforcing piece is arranged in the height direction of the whole vehicle and integrally cast and formed, the stand column reinforcing piece is provided with a vehicle door hinge installation point, and the side wall reinforcing plate and the side wall outer plate are provided with vehicle door hinge installation through holes corresponding to the vehicle door hinge installation point. According to the side wall stand column structure, the rigidity of a car door hinge installation point and the overall strength and rigidity of the side wall stand column can be improved through the stand column reinforcing piece which is integrally cast and formed, then the stability of car door installation can be improved, deformation of the side wall stand column can be reduced when collision happens, and the collision safety of a car can be improved.

The invention discloses a novel light-weight power system applied to an aircraft, and relates to the technical field of novel power systems, the power system is used for providing power for propellers of the aircraft, a novel driving mode combining an engine and a power motor is adopted, fuel consumption is reduced, meanwhile, the flight smoothness of the aircraft can be improved, and the service life of the aircraft is prolonged. The engine and the propeller adopt the design scheme of parallel shafts, the characteristic of different shafts is met, and the propeller is suitable for being applied to airplanes. The lower transmission cavity is used for rotationally supporting the input shaft, and a double-end supporting mode can be adopted, so that the power transmission stability is guaranteed. When the whole machine cruising battery is insufficient, the output power can be improved for a long time to drive the power motor under the fixed rotating speed of the engine, and the battery electricity is compensated through power generation.

A lightweight shielding cable disclosed by the present invention comprises a core wire, an insulating layer, a metal foil layer, a modified shielding layer and a surface layer which are sequentially arranged from inside to outside, the modified shielding layer is glass fiber cloth impregnated with a conductive adhesive, and the conductive adhesive comprises an adhesive and conductive particles dispersed in the adhesive. The conductive particles are mutually communicated to form a conductive channel, each conductive particle comprises a composite microsphere with a core-shell structure, the core of the composite microsphere is a polymer microsphere, the shell of the composite microsphere is made of an inorganic material, and the shell is composed of nano ferroferric oxide particles and nano silver particles. The modified shielding layer made of the composite material is small in density, and lightweight design of the cable is facilitated. And the composite microspheres of which the shells consist of the nano ferroferric oxide particles and the nano silver particles are selected as the conductive particles of the modified shielding layer, so that the electromagnetic shielding performance of the cable is improved. The invention also discloses a preparation method of the lightweight shielding cable.

The utility model relates to glass lifting technical field, and disclose a kind of lightweight guide rail glass lifting device, including arc guide rail, the first arc slot is opened in the side of arc guide rail towards fixing piece, arc guide rail is opened second arc slot in the side away from fixing piece, the side of arc guide rail is provided with stepper motor, and the one end away from arc guide rail of stepper motor is electrically connected with central control unit.Under the cooperation of the arc-shaped clamping block of the side of stepper motor and the arc-shaped clamping plate of the side of glass clamp plate, when stepper motor driving gear rotates, glass clamp plate can move up and down on the side of arc guide rail with tooth groove to reach the effect of glass lifting, in the structure, under the control of automobile central control unit, two stepper motors move synchronously, drive glass clamp plate to lift, relative traditional glass lifting device removes capstan and steel wire rope, so that glass lifting device realizes lightweight design.

The present invention provides a thermal management assembly of an electric vehicle and an electric vehicle, and relates to the field of vehicle technology. The thermal management assembly of the electric vehicle includes multiple subsystems, including an electric drive thermal management system, a battery thermal management system, and an air conditioning thermal management system, and also includes: an auxiliary water tank for storing and providing a heat exchange medium; a water system including multiple multi-way valves, connecting the heat exchange medium to form a cooling circuit through the electric drive thermal management system, the battery thermal management system, and the air conditioning thermal management system; a pump system including multiple pumps connected to the water system for conveying the heat exchange medium; a controller configured to: receive application scenario instructions and vehicle temperature status; and control the working status of the subsystem and the guidance of the heat exchange medium according to the application scenario instructions and / or the vehicle temperature status. It can realize power consumption and improve vehicle driving range.

The utility model relates to a luminous shoelace and a shoe with the luminous shoelace, the luminous shoelace comprises a strip-shaped piece coupled with a shoelace body and a luminous device arranged between the shoelace body and the strip-shaped piece, and the luminous device comprises a circuit board module and a battery. The plurality of predetermined colored light emitting diodes are electrically coupled with the circuit board module and the battery and comprise a first predetermined colored light emitting diode and a second predetermined colored light emitting diode; a sensor detects an external force to generate a control signal; the control chip is arranged on the circuit board module, receives a control signal and drives the light-emitting diodes with the preset colored light to emit light in a light-emitting mode, and the circuit board module is a flexible circuit board or a hard circuit board with a flexible flat cable; therefore, the flexible circuit board or the circuit board with the flexible flat cable is combined with the high polymer material, so that the lightweight design is realized, the overall volume is greatly reduced, the diversified requirements of different age groups and foot types on the size of the shoelace are met, and diversified light-emitting modes and practicability are provided.

The present application relates to the field of robot technology, and in particular to a waist-hip integration mechanism and a humanoid robot, wherein the waist-hip integration mechanism comprises: a hip support; a waist circulation drive member disposed on the hip support; two side extension drives are disposed on the hip support relatively, and the axes of the drive ends coincide; two side extension supports are respectively connected to the drive ends of the side extension drive member; two pitch drive members are respectively disposed on the side extension supports; two pitch supports are respectively connected to the drive ends of the pitch drive member; two hip circulation drives are respectively disposed on the pitch supports, and the drive ends of the hip circulation drives are respectively connected to the leg mechanisms of the humanoid robot. Optimizing the nine degrees of freedom at the waist and hip joints of the traditional humanoid robot to seven degrees of freedom not only reduces the number of motors and the overall weight, but also retains a high degree of flexibility and maneuverability. At the same time, it helps to improve the endurance, free up more space for the robot, and realize the lightweight design of the robot.

The utility model discloses an aluminum die-casting door inner plate of a heavy truck, and mainly relates to the technical field of truck parts. Comprising a basic mechanism and a main body mechanism, the basic mechanism comprises a thin wall, reinforcing ribs and a column table, the thin wall is specifically of an unequal-thickness frame structure, and the main body mechanism is integrated on the thin wall; the main body mechanism comprises a door and window structure, a door lock installation structure, a hinge installation structure, an outer handle installation structure, a rearview mirror installation structure, a blind compensation mirror installation structure and a lower decoration plate installation structure. The utility model has the beneficial effects that the light aluminum profile has certain light weight, and the light aluminum profile is combined with an integrated die-casting process, so that the rigidity and the strength of the light aluminum profile are ensured, and meanwhile, the integrated and light-weight design is realized.

The invention discloses a comprehensive integrated antenna, and belongs to the technical field of communication antennae, all first antenna units are sequentially arranged along a first axis, and each first antenna unit comprises two first short metal tubes and two first long metal tubes which are symmetrically arranged. A first feed joint is arranged between the two first short metal tubes; the second antenna units are sequentially arranged along the first axis, and each second antenna unit comprises two antenna array elements; the antenna base comprises at least one first radio frequency socket and at least one second radio frequency socket, and a first radio frequency cable is arranged between the first radio frequency socket and the first feed section; and a second radio frequency cable is arranged between the second radio frequency socket and the second antenna unit. According to the comprehensive integrated antenna provided by the invention, signal receiving of different communication frequency bands can be met at the same time, the utilization rate of the antenna in the axial space can be improved, and the electromagnetic compatibility condition of the antenna can be optimized while the communication performance of each antenna is fully exerted.