17results about How to "Reduce transmission efficiency" patented technology

The atomized gas recovery device comprises a shell and a filter membrane in the shell, the shell comprises a rear shell and a front shell, and the atomized gas recovery device is characterized in that the front shell comprises a front shell cover and a suction component, a front shell positioning opening is formed in the front shell cover, a gas outlet and a rear shell mounting positioning opening are formed in the rear shell, the filter membrane is an annular piece, and the suction component is arranged in the annular piece. And the suction component penetrates through the front shell positioning opening, the filtering membrane and the rear shell mounting positioning opening. An expiration port and an expiration one-way valve are arranged in the middle of a tube body of the inhalation component, a mist inlet located in the shell and at one end of the tube body of the inhalation component is used for being connected with a mist outlet of an atomization device, and the portion, between the expiration port and the mist inlet, of the inhalation component is sleeved with the filter membrane, so that expired gas pushes away the expiration one-way valve after coming out of the expiration port, and the atomization device is used for atomization. And after being filtered by the filter membrane, the air overflows from the air outlet on the rear shell. A mist outlet of the atomization device is connected with a mist inlet of the suction component. And the structure design is reasonable, simple and compact, the aerosol transmission efficiency is high, recovery of exhaled gas is facilitated, and operation and use are convenient.

The invention provides a hollow-core-to-hollow or solid-core-to-hollow optical fiber connection jumper wire and a preparation method thereof. The jumper wire comprises a transmission fiber and connectors connected to the two ends of the transmission fiber. The transmission fiber is a hollow-core optical fiber, the connector comprises an optical fiber fixing device and an integrated welding structure fixed in the optical fiber fixing device, the integrated welding structure comprises a transmission fiber, a coating film and a transition fiber which are fixedly connected in sequence, the coating film performs anti-reflection on a set wavelength, the transition fiber is a solid-core optical fiber, and the outer side end of the transition fiber serves as the output end of the connector; and the output ends of different connectors are oppositely arranged so as to realize transmission connection between different jumpers. Pluggable, stable and reliable connection between the hollow-core optical fibers or between the hollow-core optical fibers and the solid-core optical fibers is achieved.

The invention discloses a depth camera assembly simulation system and method for robot joint simulation, a depth camera sensor is packaged into a sensor assembly in a UE engine to be used in an ROS2 platform, and the sensor assembly comprises an interaction layer, a communication layer, a data layer and a texture capture layer; the texture capture layer obtains and stores a scene depth map; a depth data acquisition module in the data layer acquires a depth value of each pixel in the scene depth map and converts the depth value into a general image format in opencv, and the converted image is packaged through a data format packaging module; a Fastdds communication module is integrated in the communication layer so as to acquire and publish the packaged image; a picture transmission parameter configuration module and a camera parameter configuration module are arranged in the interaction layer to configure camera parameters and picture transmission parameters, and a configuration file is stored; according to the depth camera assembly simulation system and method, the depth image acquisition efficiency is improved.

The utility model relates to a multifunctional steam milk bar, including the tubular body, one end connects the steam source, and the other end sets up the blast hole, sleeve, sleeve sets up on the tubular body, the sleeve and the tubular body form the air cavity between, and the sleeve sets up the inflation hole intercommunication air cavity on, around the inflation hole, the surface of sleeve sets up the adjusting cylinder, adjusting sleeve, set up in the adjusting cylinder, adjusting sleeve sets up the air inlet groove A on, the air inlet groove A intercommunication inflation hole, adjusting head, extends into the adjusting cylinder, adjusting head sets up the air inlet groove B on, wherein, the sleeve opening sets up close to the blast hole one end, and the other end of sleeve and tubular body between seal connection, around the axis of rotation adjusting head adjusting head, the air inlet groove A and the air inlet groove B intercommunication or break off, the utility model discloses through the adjusting head on the sleeve, can intercommunication or break off the air inlet groove A and the air inlet groove B, realize the quick switching of multifunctional steam milk bar's work mode, and the switching mode is simple and quick, and the use efficiency of multifunctional steam milk bar is improved.

According to the technical scheme, the pressure vessel welding positioning device comprises a base, main wheel frames are arranged at the front end and the rear end of the upper end of the right side of the base, driving wheels are arranged in the middles of the main wheel frames, a motor is arranged at the front end of the right side of the base, and a main belt wheel is arranged in the middle of the rear end of a motor shaft; an auxiliary connecting shaft is arranged in the driving wheel, a key pin is arranged on the surface of the upper end of the middle of the auxiliary connecting shaft, auxiliary wheel frames are arranged at the front end and the rear end of the upper end of the left side of the base, a driven wheel is arranged in the middle of each auxiliary wheel frame, and a main connecting shaft is arranged in each driven wheel. A hydraulic rod is arranged in the middle of the right side of the connecting block, a hydraulic cylinder is arranged in the middle of the right side of the hydraulic rod, a guide rail is arranged at the lower end of the sliding block, a clamping groove column is arranged at the lower end of the guide rail, and stopping blocks are arranged on the left side surface of the base and the left side surface of the auxiliary wheel frame.

This invention discloses a three-dimensional angle-resistant wireless charging device and method, belonging to the field of wireless charging technology. The device includes first to sixth transmitting coils and first to third receiving coils. The six transmitting coils form a cubic spatial structure, with the first and second transmitting coils facing each other and serving as the front and back faces of the cubic space; the third and fourth transmitting coils facing each other and serving as the left and right faces of the cubic space; and the fifth and sixth transmitting coils facing each other and serving as the top and bottom faces of the cubic space. The three receiving coils form a sphere located at the center of the cubic space. This invention achieves omnidirectional, dead-angle-free magnetic field energy radiation.

The utility model discloses a ball screw for a braking system, which comprises a thread sleeve and a screw, the thread sleeve and the screw are respectively provided with a threaded channel, a plurality of balls are rotatably arranged in the threaded channels, the thread sleeve is rotatably connected, a reverser is arranged on the thread sleeve corresponding to the positions of the balls, and the reverser is connected with the screw. The threaded sleeve is provided with a flange in the length direction of the lead screw, a connecting spline is arranged on the flange, the lead screw is arranged in a hollow mode to form a connecting through hole, the reverser is provided with a guide groove used for being communicated with an adjacent threaded channel, the position, corresponding to the guide groove, of the reverser is provided with a lubricating window, and a grease storage device is inserted into the lubricating window. The structure is simple, the using effect is guaranteed, meanwhile, the balls are convenient to lubricate, and the good using effect is achieved.

The invention discloses a lithium-loving porous interface functional layer as well as a preparation method and application thereof. The preparation method comprises the following steps: dissolving a binder in a non-polar solvent to form a solution A; adding a lithium-loving porous framework material and an electronic conductor into the solution A through a water bath synthesis method, and stirring and reacting to form a solution B; adding a small amount of ionic conductor into the solution B for multiple times to form a solution C; and coating a current collector with the solution C, and drying to form the lithium-loving porous interface functional layer on the current collector. The invention also discloses a lithium-loving porous interface functional layer prepared by the preparation method, and a lithium negative electrode containing the functional layer. The lithium-loving porous interface functional layer comprises the lithium-loving framework, the hole wall of the lithium-loving framework comprises the electronic conductor, and the hole internally comprises the ionic conductor, so that the infinite volume expansion of lithium can be limited, the lithium ion flow is homogenized, the effective current density on the surface is reduced, and the growth of lithium dendrites is inhibited; and the high-capacity and long-cycle performance of the all-solid-state lithium metal battery is realized.

The invention belongs to the technical field of supercapacitor electrode materials, and relates to an all-solid-state supercapacitor based on a CuCo2O4-PDMT composite electrode and a preparation method thereof.The preparation method comprises the steps that copper nitrate and cobalt nitrate serve as metal sources, and a CuCo2O4 bottom layer is prepared through constant-potential electro-deposition-muffle furnace annealing; 2, 5-dimethylthiophene (DMT) is used as a monomer, a PDMT top layer is prepared through cyclic voltammetry electropolymerization, and a CuCo2O4-PDMT composite electrode is formed; polyethylene glycol (PEG) is used as a gel matrix, lithium perchlorate (LiClO4) is used as an ion source, nano TiO2 is used as a reinforcing agent, and the composite gel electrolyte is prepared through'microwave dissolution-ultraviolet curing '. The composite electrode and the gel electrolyte are assembled into the all-solid-state symmetrical supercapacitor, so that the defects of high electrode electron transmission impedance, low gel electrolyte ion conductivity and insufficient cycling stability of the existing all-solid-state supercapacitor are overcome, and the collaborative construction of the composite electrode conductive network and the gel electrolyte ion channel is realized; and the performance limitation of traditional single component optimization is broken through.

The present invention provides a magnetic integration roller press drive system, which belongs to the field of mechatronic transmission technology, including a high-efficiency, low-speed, high-torque direct-drive permanent magnet motor, a magnetic coupling damper, a universal joint, a damper control system, a high-voltage frequency converter and a coupling, wherein the high-voltage frequency converter drives the high-efficiency, low-speed, high-torque direct-drive permanent magnet motor to generate torque and speed, the magnetic coupling damper is fixed to the motor shaft extension end through a support assembly, the universal joint is connected to the high-efficiency, low-speed, high-torque direct-drive permanent magnet motor shaft extension end and the roller press grinding roller through a coupling, and the magnetic coupling damper is controlled by a damper control system. The system of the present invention has a simple structure, a small volume, high efficiency, and low noise, and can greatly improve the transmission efficiency of the system, improve the reliability and stability of the system, reduce the maintenance cost of the transmission system, and ensure the safety of production.

This utility model relates to the field of mechanical engineering, and more particularly to a protection device for a gantry dual-drive synchronous motion system with adjustable margin. The dual-drive synchronous mechanism consists of two transmission mechanisms, each containing a dual-axis motor, lead screw, pulley, and belt, providing power to the crossbeam. The crossbeam moving mechanism includes a crossbeam and a base, with lead screws connected to both ends of the crossbeam. Position sensors are installed on the crossbeam to detect the relative height of the two ends to ensure synchronization. The protection mechanism includes a limiting component and a tensioning component. The tensioning component is used to adjust the tension of the transmission belt, achieving adjustable margin to adapt to different working conditions. The limiting component not only restricts the movement range of the synchronous pulley, but its limiting position is also adjustable, thereby setting the allowable working range margin of the synchronous pulley. This invention ensures the motion synchronization of the gantry system through position sensor feedback and dual margin adjustment, and improves the reliability and adaptability of the system by protecting key components through limiting.

The utility model relates to a technical field of joint mechanism, especially a joint mechanism of worm wheel box, including: box, the worm wheel and worm structure is included in the box, and the worm end part is equipped with the shaft coupling, the shaft coupling includes: first half coupling, first half coupling is installed in the worm end part, second half coupling, second half coupling is connected on first half coupling through intermediate element, intermediate element, intermediate element includes disc body, and the both sides of disc body are equipped with the boss that is perpendicular to each other, installation layer, installation layer is covered in the boss, and is equipped with a plurality of even distribution rollable ball on the installation layer, the boss cooperation is installed in the recess of half coupling, and the installation layer is between half coupling and intermediate element, the utility model reduces the motion resistance and component wear and tear obviously, promotes transmission efficiency, and whole structure is composed of half coupling, intermediate element and installation layer simultaneously, and the number of parts is few, and the assembly relation is simple, effectively simplifies the installation process, and reduces the assembly difficulty.

The present invention provides a DAB converter capable of suppressing a decrease in power transmission efficiency due to individual differences in inductance. A DAB converter comprising: a transformer having a primary winding and a secondary winding; a first full-bridge circuit; a second full-bridge circuit; a first capacitor; a second capacitor; and a control unit, wherein the primary winding is connected between an eleventh midpoint and a twelfth midpoint of the first full-bridge circuit, the secondary winding is connected between a twenty-first midpoint and a twenty-second midpoint of the second full-bridge circuit, the first capacitor is connected between two input / output terminals of the first full-bridge circuit, and the second capacitor is connected between two input / output terminals of the second full-bridge circuit, and the control unit adjusts a phase difference between a switch of the first full-bridge circuit and a switch of the second full-bridge circuit based on an estimated value of the inductance of the DAB converter.

The application provides an epoxy steel bar production conveying frame, which comprises multiple groups of support wheel groups arranged along the conveying direction of the steel bar, each group of support wheel groups comprises two support wheels arranged in parallel, and the two support wheels rotate synchronously around their own axes; an included angle is arranged between the axial direction of the support wheel and the conveying direction of the steel bar, so that the projection of the two support wheels in the conveying direction of the steel bar is V-shaped, and when the steel bar is placed on the two support wheels of the same support wheel group, the friction force of one side surface of the steel bar is upward, and the friction force of the other side surface of the steel bar is downward. The application adopts the mode that the steel bar is placed on multiple groups of support wheels arranged in parallel, so that the two sides of the steel bar are in contact with the support wheels respectively, a deflection force is formed, the steel bar can rotate around its own axis, and meanwhile, due to the inclined arrangement of the support wheels and the fact that the steel bar is placed in the same side half circle of the support wheel, the steel bar is subjected to a component force along the movement direction, so that the steel bar rotates while moving forward, so that the shot blasting and the coating can be distributed more uniformly on the surface of the steel bar.

The invention discloses a stirring mill type powder reactor for processing calcium hydroxide with a high specific surface area, and relates to the technical field of calcium hydroxide processing equipment. The reactor comprises a mounting base, a stirring and grinding box and a reaction box are arranged on the mounting base, and a stirring and grinding crushing assembly and a mixing reaction assembly are arranged in the stirring and grinding box; high-activity calcium oxide powder is fed into the reaction box through the feeding box, and an aqueous solution and a dispersing agent which are supplied by the two proportioning boxes are transferred and conveyed to the reaction rotary drum and are matched with the turning plate to realize full reaction; and the reacted material enters the stirring and grinding drum through the blanking pipe, is crushed by the spiral stirring and grinding blade and the grinding tooth block, and is output by the conveying mechanism. An integrated structure is adopted, temperature control, sealing and pulse air supply design is matched, the mixing uniformity and the reaction efficiency are improved, the particle size of powder is refined, preparation of calcium hydroxide with the high specific surface area is assisted, the structure is compact, operation is convenient and fast, and practicability is high.

The utility model discloses an axial tooth thickness gradual change gear and a backlash suppression structure, and belongs to the field of machinery. The tooth thickness of the cylindrical surface characteristic gear is gradually changed, that is, the corresponding tooth thickness on each cross section is different and is monotonically gradually changed. When the two gears are used in a matched mode, the changes of the tooth thicknesses of the cross sections of the two gears are opposite, and the tooth contact backlash can be changed through axial displacement of one gear. Gaps between the teeth can be increased when the teeth are far away from each other, gaps between the teeth can be reduced when the teeth are close to each other, and even zero-gap contact is achieved at proper positions; tooth clearance suppression has three structures, namely an end face gasket increasing and decreasing structure, an end piece abrasion compensation structure and a taper abrasion compensation structure. The continuous high-precision operation of the gear system can be ensured; the device can be widely applied to the mechanical industry.

The invention discloses a high-precision rotary table for testing a large-aperture spatial load, and relates to the technical field of spatial load testing equipment, the high-precision rotary table comprises a base, a driving shaft supporting assembly, a driven shaft supporting assembly and a bearing assembly, the driving shaft supporting assembly is arranged at one end of the top surface of the base; the driven shaft supporting assembly is arranged at the other end of the top face of the base. The two ends of the bearing assembly are connected with the driving shaft supporting assembly and the driven shaft supporting assembly correspondingly. The driving shaft supporting assembly comprises a driving shaft, a direct-current torque motor is installed on a shaft shoulder of the driving shaft, the driving shaft is rotationally arranged on the top of a driving shaft supporting frame, the driving shaft supporting frame is installed on the base, and the output end of the driving shaft is connected with the bearing assembly. The rotary table is directly driven by the direct-current torque motor, intermediate transmission links such as a speed reducer are not needed, and the overall motion precision of the rotary table is relatively high; and a 26-bit high-precision encoder is adopted, and 1000-time subdivision is adopted for feeding back an angular position, so that the positioning precision of the rotary table is relatively high.