18results about How to "Easy selection" patented technology

The application discloses an integrated steel casing sinking device and a use method thereof, and the device comprises a spiral drill rod, a motion isolation unit, an elastic centering unit and the like. The outer wall of the spiral drill rod is provided with paddle-shaped blades capable of continuously rotating and ascending. The motion isolation unit comprises a positioning assembly, a positioning base body, a clamping groove arranged on the wall of the steel casing, and a clamping unit. The elastic centering unit comprises an abutting wheel, a rotating connecting block, a sliding telescopic rod, a centering spring sleeved on the outer wall of the sliding telescopic rod, a tail limiting groove and a drilling condition sensing unit. The spiral drill rod is used as a pile driving bit, so that the technical effect of excavating soil layers is achieved, and the paddle-shaped blades capable of spirally ascending are simultaneously used to automatically transport the excavated soil upwards. In addition, the motion state of the bit is isolated by using the motion isolation device, so that the motion isolation between the steel casing and the spiral drill rod rotating in the middle is achieved as a whole, and the rotation of the steel casing caused by the motion of the spiral drill rod is effectively blocked.

This invention discloses a method for simulating the transportation efficiency of long-distance, steep-slope tunnel construction adit. The method divides the material transportation process of a tunnel boring machine (TBM) into two phases: heavy-load entry into the tunnel and empty-load exit. Based on the kinematic principles of force, motion models are sequentially established for heavy-load external tunnel transportation, heavy-load adit downhill transportation, heavy-load main tunnel transportation, empty main tunnel transportation, empty adit uphill transportation, and empty external tunnel transportation. A time-discrete numerical integration method is used to calculate the acceleration, velocity, displacement, and running time of each motion model at each moment with a small time step. By simulating the transportation efficiency under different equipment parameters and working conditions using the motion models, the selection of transportation equipment, adit slope design, and braking system configuration parameters are determined. The advantages of this invention are that it achieves accurate dynamic simulation calculation of the transportation efficiency inside and outside the tunnel during TBM construction, providing intuitive guidance for transportation equipment selection, braking system configuration, and optimization of adit slope design.

The invention provides an immunochromatography detection result reading method and device based on solid quantum enhancement, and relates to the technical field of immunochromatography detection. The immunochromatography detection result reading method comprises the following steps: emitting exciting light to a standard substance to excite the standard substance to generate a fluorescence signal for detection; microwaves are output to a standard substance, so that the standard substance generates spin resonance, and the intensity change of a fluorescence signal is caused; collecting the fluorescence signal after intensity change to obtain an optical detection magnetic resonance ODMR reference spectral line; determining a corresponding microwave calibration frequency according to the optical detection magnetic resonance ODMR reference spectral line; exciting light and microwaves which are calibrated according to the microwave calibration frequency and are subjected to amplitude or frequency modulation are emitted to a tested sample; and respectively detecting the fluorescence intensity variation of the quality control line and the detection line to obtain an immunochromatography detection result of the detected sample. The microwave frequency is calibrated by using the standard substance, the interference of background fluorescence is effectively shielded, and the detection sensitivity and accuracy are improved.

This application provides a power module including a transformer and a rectifier circuit. The transformer includes a magnetic core and windings. The rectifier circuit is electrically connected to the windings. The magnetic core further includes: a first cover plate; a second cover plate disposed opposite to the first cover plate; a first magnetic post; and a second magnetic post with a magnetic flux direction opposite to that of the first magnetic post. The first and second magnetic posts are connected between the first and second cover plates. The windings further include: a first winding wound on the first magnetic post; and a second winding wound on the second magnetic post, wherein the first and second windings have a shared winding portion, at least a portion of which is located between the first and second magnetic posts. The rectifier circuit further includes: a plurality of rectifier components, including a first rectifier component, a second rectifier component, a third rectifier component, and a fourth rectifier component electrically connected to form a full-bridge rectifier circuit.

The invention provides a converter control method and device, control equipment and a converter, and belongs to the technical field of power supplies. The converter comprises at least two inversion modules; a communication module is arranged between the midpoints of the DC buses of every two adjacent inversion modules, and the communication module comprises a first switch and a first buffer unit which are connected in parallel; the method comprises the following steps: acquiring a midpoint potential of a direct-current bus of each inversion module; for every two adjacent inversion modules, if the midpoint potentials of the DC buses of the two inversion modules are not equal, a first buffer unit between the two inversion modules is controlled to be switched on, and after the first buffer unit is switched on, a first switch between the two inversion modules is controlled to be switched on. According to the method, zero-sequence circulating current between the inversion modules can be avoided, carrier synchronization control in advance in a software control method and strict synchronization of a control process are not needed, and the control process is relatively simple.

The application provides a fastener assembly space verification method, device and electronic equipment. The fastener assembly space verification method comprises the following steps: S1, acquiring technical parameters of a connecting piece, and serializing the connecting piece according to the technical parameters; S2, selecting an assembly tool matched with the connecting piece, and integrating the assembly tool and the connecting piece into a virtual assembly unit; and S3, selecting the virtual assembly unit according to a connecting piece to be verified, matching the connecting piece in the virtual assembly unit with the connecting piece to be verified, and judging whether the matching meets assembly space assembly conditions. According to the fastener assembly space verification method, the connecting piece is serialized, and the connecting piece and the assembly tool are integrated into the virtual assembly unit, so that the tool selection is simplified, the verification efficiency of the tool space is improved, and software integration is facilitated.

The invention discloses a passive auxiliary soft switching power amplifier based on hybrid ZVS (Zero Voltage Switching) / ZCS (Zero Voltage Switching). The passive auxiliary soft switching power amplifier comprises a double-direct-current voltage module, a double-resonant capacitor and resonant inductor passive soft switching network, a midpoint double-path parallel bridge arm, a double-switching tube high-frequency main power output bridge arm, a double-parallel auxiliary capacitor and an LC filtering output network. The passive auxiliary device adopted by the invention is simple, an additional auxiliary switch tube and a driving module are not needed, and the control complexity is greatly reduced; the design that the resonant inductor is connected in series with the midpoint bridge arm avoids the direct connection risk of the bridge arm fundamentally, dead time does not need to be set, and the operation reliability is improved; meanwhile, a hardware condition is created for realizing hybrid ZVS / ZCS for the full-switching tube, so that the switching loss is reduced, the heat loss of the whole machine is reduced due to the low-loss characteristic of the passive network, the heat dissipation design can be simplified, and the service life of the device can be prolonged; and the network structure is simple, small in size and easy to integrate.

The present application relates to the technical field of coal mine engineering, and discloses a coal seam permeability improvement technology effect comprehensive evaluation system and a quantitative model construction method, which comprises the following steps: S1, obtaining multi-source engineering monitoring data and detection data in the application of coal seam permeability improvement technology; S2, extracting evaluation parameter information of the coal seam permeability improvement technology effect and classifying the evaluation parameter information; S3, constructing a multi-dimensional comprehensive evaluation index system; S4, quantifying and standardizing the evaluation indexes; S5, determining the weight parameters of the evaluation indexes; S6, obtaining the comprehensive evaluation score of the coal seam permeability improvement technology; and S7, outputting the evaluation result of the coal seam permeability improvement technology effect. Through the construction of the multi-dimensional comprehensive evaluation index system and the introduction of the quantitative model of index quantification, direction consistency processing, weight fusion and hierarchical aggregation, unified and quantifiable evaluation of the coal seam permeability improvement technology effect is realized, and the evaluation indexes of the coal seam permeability improvement technology effect are uniformly quantified, comprehensively represented and objectively compared.

The utility model belongs to automatic feeding technical field especially relates to a kind of automatic positioning feeding mechanism.A kind of automatic positioning feeding mechanism, including bottom plate, feeding assembly, positioning assembly, blanking assembly and clamping assembly;The positioning assembly includes support frame, is set in the positioning plate of support frame, is fixedly connected in the positioning plate L-shaped limit block, positioning block one and positioning block two of sliding in the support frame, drive positioning block one and positioning block two reciprocating sliding drive component;The clamping assembly includes PPU manipulator, two clamping driving pieces and clamping jaw of the mobile end fixed connection of PPU manipulator;The PPU manipulator each cycle, can drive two the clamping jaw respectively on feeding assembly on the product to be processed transfer to positioning plate, on the processed product on positioning plate transfer to blanking assembly.The utility model can realize automatic feeding and discharging, can be processed and processed product synchronous transfer to unprocessed and simple structure and can be quickly positioned.

The utility model discloses an LED packaging structure and a polychromatic light LED light source, and the LED packaging structure comprises a substrate which is provided with a packaging surface, and the packaging surface is provided with electrodes which are arranged in pairs; the LED chip is mounted on the electrode; the fluorescent part is mounted on the light emitting surface of the LED chip; the packaging piece is mounted on the substrate and surrounds and is attached to the side surfaces of the LED chip and the fluorescent layer; the size of the end, attached to the LED chip, of the fluorescent piece is the same as the size of the light-emitting face of the LED chip. The LED light source has no yellow ring light spots, can cope with various secondary optical designs, and does not cause light spot chromatic aberration, so that the LED light source has high light color consistency and high reliability, and does not have the chromaticity problem after reflection and refraction.

The invention relates to an intelligent tool optimization device and method, electronic equipment and a storage medium. The intelligent tool optimization method comprises the steps that the intelligent tool optimization device comprises an input module used for inputting to-be-machined process data and comprising a structured part process module and a numerical control machining chart module; the processing module is used for processing knowledge reasoning and processing parameter recommendation, and comprises a processing template reasoning module used for reasoning a part processing procedure method and flow; the tool reasoning module is used for reasoning tool types and tool parameters; the cutting parameter recommendation module is used for reasoning a processing method and cutting parameters; and the output module is used for tool selection and machining parameter endowing and comprises a machining template selection module, a tool selection module and a cutting parameter endowing module. According to the intelligent tool optimization device, cutting parameters of numerical control machining can be optimized and selected, the machining quality and efficiency of parts are improved, and the manufacturing cost is reduced.

This invention discloses an externally motor-controlled weft take-up and unwrap device and a weft insertion method. The weft insertion drive module has a weft tube control module mounted on its module motion slider. A shuttle rest is fixed to the end of the weft insertion drive module, allowing the shuttle body to be positioned on the shuttle rest. The transmission mounting base of the weft tube control module is equipped with a weft insertion support rapier and a rotatable lightweight weft tube drive shaft. The lightweight drive shaft is driven by the weft tube control motor and rotates. The shuttle body includes a shuttle body with two sets of rapier support blocks at the rear and two sets of drive blocks rotatably mounted at the front. A weft tube is detachably mounted between the two sets of drive blocks. The weft insertion support rapier can engage with the rapier support blocks on the shuttle body and drive the shuttle body forward under the influence of the weft insertion drive module. The lightweight drive shaft can engage with the drive blocks and drive the weft tube to rotate under the influence of the weft tube control motor, thus controlling the unwinding of the weft tube.

The present application relates to the PTMEG production refining technical field, especially based on ion exchange PTMEG demethanol sodium process, solved the existing existing PTMEG demethanol sodium more using neutralization method and water washing method, neutralization method is easy to introduce impurities and precision is difficult to control, water washing method product loss, long process, high energy consumption, both cannot continuous production, the overall efficiency is low, the present application is through first by reaction rectification completes PTMEA alcoholysis conversion preparation PTMEG stock solution, again through precision filtration, cooling dilution homogenization pretreatment stabilizes material state, utilizes double distribution device double resin bed ion exchange system cooperation online sodium ion real-time detection accurate removal sodium ion, resin failure adopts standardization multistage online flushing regeneration, double bed alternative switching operation whole process does not need to stop continuous operation, improves PTMEG overall production efficiency.

The utility model discloses an inclined shaft car catching device, including the lifting frame and be used for lifting the first steel wire rope of lifting frame, still include support, telescopic cylinder, baffle, angle steel stand and second steel wire rope. Lifting frame is walked up and down along angle steel stand through gyro wheel. The cylinder body of telescopic cylinder is fixed on the support, and its piston rod end installs the movable pulley, still is installed with the trolley wheel between located telescopic cylinder and lifting frame on the support. One end of first steel wire rope is fixedly connected with the support, and the other end is fixedly connected with lifting frame after passing movable pulley and trolley wheel in proper order. The utility model discloses using telescopic cylinder, trolley wheel and movable pulley cooperation, and the actual moving speed of lifting frame is two times of telescopic cylinder speed, and has improved work efficiency, and still has little impact and other advantages.

The application discloses a parallel waterway system and a water outlet TDS active control method. The parallel waterway system comprises a first waterway, a second waterway and a mixed waterway. The first waterway and the second waterway are connected in parallel and then connected in series with the mixed waterway. The first waterway comprises a first water pump, an RO filtering device and a first water outlet end which are connected in sequence. The water outlet side of the first water pump is provided with a first pressure detection interface. The second waterway comprises a second water pump and a second water outlet end which are connected in sequence. The water outlet side of the second water pump is provided with a second pressure detection interface. The first water outlet end and the second water outlet end are combined and serve as the water inlet end of the mixed waterway. The water outlet end of the mixed waterway is a mixed water outlet end. The first pressure detection device is used to detect the water pressure P1 of the water outlet side of the first water pump, and the water pressure P1 is controlled to be within a preset first range. The second pressure detection device is used to detect the water pressure P2 of the water outlet side of the second water pump, and the water pressure P2 is controlled to be within a preset second range. The application can maintain stable and accurate mixed water outlet TDS values.

The present application provides a shale oil well conversion pumping time optimization method, which comprises the following steps: step 1, through the analysis of the influence factors of the post-pressing conversion pumping capacity of the shale oil reservoir, the post-pressing reservoir experiment is completed, the numerical simulation test parameters are obtained, and the data collection and preprocessing are carried out; step 2, according to the characteristics of different influence factors of the capacity, the numerical simulation model is constructed, and the shale oil fracturing horizontal well numerical simulator considering the influence of the conversion pumping time is formed; step 3, the conversion pumping time optimization model is perfected through the well site production history fitting effect; step 4, the optimal conversion pumping time is determined by using the shale oil fracturing horizontal well numerical simulator to calculate and analyze the capacity effect. The shale oil well conversion pumping time optimization method improves the simulation efficiency, reduces the manual intervention, and finally forms an operable conversion pumping decision scheme, which provides a scientific basis for the efficient management and decision of the shale oil well, and helps to optimize the selection and scheme design of the oil production equipment.

The application provides a resonant parameter determination method and device, electronic equipment and a storage medium, wherein the method comprises: obtaining a first resonant parameter of a bidirectional LLC resonant converter at a preset working frequency, wherein the first resonant parameter comprises an inductance value of a resonant inductor and a capacitance value of a resonant capacitor; then increasing the inductance value of the resonant inductor and simultaneously reducing the capacitance value of the resonant capacitor while keeping the working frequency unchanged to obtain a second resonant parameter; then calculating a circuit gain of the bidirectional LLC resonant converter according to the second resonant parameter; and then determining a selection reference parameter of the bidirectional LLC resonant converter according to the circuit gain and the second resonant parameter, so that the appropriate resonant parameter of the bidirectional LLC resonant converter can be determined, and the bidirectional LLC resonant converter can obtain higher conversion efficiency.

The invention discloses a system and a method for multi-service access of power secondary equipment. The system comprises a service data interface module, a service data comprehensive transmission engine module, a service data processing module and a system interconnection module, the business data interface module interacts various business data with the outside of the equipment; the system interconnection module interacts service data with other systems in the equipment; the service data comprehensive transmission engine module gathers data from the outside and inside of the equipment, sends the data to the corresponding service data processing module, sends the service data processed by the service data processing module to the service data interface module, outputs the service data to the outside of the equipment or sends the service data to the system interconnection module; and outputting to other systems in the equipment. According to the invention, flexible access of various service data and data sharing among multiple systems can be realized.