10358 results about "Electric control" patented technology

The invention relates to the technical field of new energy automobile electric control, and discloses a new energy automobile electric control fault prediction system. The system comprises a real-time data acquisition module, a dynamic fault prediction model construction module, a fault difference calculation module, a multi-dimensional anomaly analysis module, a fault probability positioning module and a self-adaptive maintenance strategy module. The real-time data acquisition module acquires sensor data of the electric control system in real time; the dynamic fault prediction model construction module constructs a dynamic fault prediction model based on historical fault data; the fault difference calculation module inputs real-time data into the model and outputs theoretical fault indexes; the multi-dimensional anomaly analysis module compares the theory with the actually measured fault indexes to generate an anomaly difference matrix; the fault probability positioning module inputs the matrix into a space correlation network to generate a fault probability distribution diagram; and the adaptive maintenance strategy module configures maintenance parameters according to the distribution diagram. According to the system, the fault prediction accuracy and real-time performance can be improved, and stable operation of the new energy automobile electric control system is guaranteed.

The invention provides a computer visual defect detection system and method on an electric control board production line, and relates to the technical field of data processing.The method comprises the steps that according to collected multi-angle images, the overall area of an electric control board is partitioned in combination with illumination conditions and visual angle information; performing image partitioning processing to generate a plurality of image sub-regions, and extracting texture features, brightness distribution features and geometric edge features in each image sub-region; rare defect feature enhancement processing is executed, multi-scale repeated superposition is carried out on low-frequency abnormal textures, and directional extension is carried out on edge fractures; performing difference comparison with the corresponding normal area combination features, and performing normalization correction in combination with the illumination condition and the visual angle information; multi-angle reproducibility analysis is executed, when the same suspected defect is detected at different angles, a reliable defect area is formed, otherwise, an interference area is removed, and an electric control board defect detection result is generated; according to the invention, the accuracy of defect detection is improved.

The invention discloses a 3D (three-dimensional) rocker potentiometer assembling machine. The 3D rocker potentiometer assembling machine comprises a stander, wherein the stander is provided with a rotatable transporting tray, and the rotatable transporting tray is provided with a plurality of storage grooves for storing rocker assemblies; a mechanical hand mechanism and a rocker assembly transporting mechanism, corresponding to the storage grooves, are arranged on the surface of the stander and the periphery of the rotatable transporting tray, the stander is also provided with a controller which is connected with the rotatable transporting tray, the mechanical hand mechanism and the rocker assembly transporting mechanism, and the controller is connected with an electric control system below the stander. By adopting the 3D rocker potentiometer assembling machine, a 3D rocker potentiometer can be automatically assembled and tested; not only can the production efficiency be greatly improved compared to the manual assembling, but also the labor cost is saved.

The invention relates to the technical field of grabbing manipulators, and discloses a self-adaptive grabbing device for a special-shaped curved surface workpiece, which comprises a central bearing base made of a light metal material and provided with a multifunctional quick connector at the top; the central adsorption module is fixed at the central position of the bottom of the central bearing base and comprises an air pressure balance pipeline communicated with an external air source; by means of radial adjustment of the cross shaft and cooperation of the elastic buffering structure and the vertical guiding assembly, high-precision centering and stable adsorption are achieved, vertical contact of the suction cup is ensured through vertical guiding, the suction cup is suitable for different curved surface radians, and the stable adsorption force under the small area is kept; and electric control connection supports installation, namely electrification, and is suitable for automatic precise grabbing.

The invention discloses a 10KV station electric control system of a convertor station adopting selecting 2 from 3 logic. Two PS830 boards are added, three PS830 boards are utilized to concurrently process and jointly realize a spare power automatic switching function and an operation interlocking logic function; the selecting 2 from 3 logic is added in PS853 programs of an ASI host machine and a switching value output board, i.e. the electric control system can be exported when at least two of three integrated circuit boards sends out same instructions. The damage of any one of the three PS830 boards can not lead to switch fault trip or refusing trip, the 10KV control system can be ensured to run safely and stably without being influenced by the faults of single element. The electric control system has the advantages of convenient use, safety and the like.

The invention discloses an equipment health state dynamic prediction method fusing digital twinning and multi-scale evaluation, and relates to the technical field of equipment health prediction of an active launching platform, and the method comprises the steps: laying multiple types of sensors on a mechanical structure layer, a hydraulic execution layer, an electric control layer and an environmental action layer of the active launching platform; multi-source operation data such as stress strain, pressure torque, temperature power and environment load are collected in real time, and a standardized input parameter set is formed; and constructing a multi-layer digital twinborn model, forming a multi-scale twinborn mapping matrix, calculating a healthy coupling evolution coefficient, and evaluating the stability of the multi-layer collaborative structure of the platform. Calculating a multi-scale stability coefficient, and updating the multi-scale twin mapping matrix; and calculating a dynamic prediction driving index to realize prediction reliability judgment and digital twin model self-learning updating. And a health prediction closed loop of digital twinning and physical equipment is realized.

The invention relates to the technical field of automobile electric control, in particular to a new energy automobile electric control steering control method and system, and the method comprises the steps: obtaining and preprocessing a four-wheel vibration data sequence, carrying out the segmentation and consistency evaluation of the vibration data sequence of each wheel, and selecting a current data sequence in an optimal segment to calculate a road condition influence coefficient. And matching the current data sequence with the historical vibration data sequence, calculating the similarity to determine the influence weight, adjusting the influence coefficient in combination with the steering angle change rate of the historical vibration data sequence, inputting the adjusted pavement condition influence coefficient into the ECU, dynamically adjusting the steering auxiliary torque, and realizing accurate steering control. According to the method, the optimal segment is selected through segment processing and consistency evaluation to accurately reflect the current road condition, the steering auxiliary torque is dynamically adjusted in combination with historical vibration data sequence matching and the steering angle change rate, and the driving safety and comfort are improved.

The invention belongs to the technical field of flange detection, and particularly relates to a flange forge piece defect detection device and method.The flange forge piece defect detection device comprises a rotary clamping mechanism, a defect detection module, a force control executing mechanism, a marking mechanism and a control module, the defect detection module comprises an eddy current sensor and an ultrasonic probe, and the force control executing mechanism and the marking mechanism are also integrated on a shell; the control module is mounted in the electric control box; the eddy current sensor is used for monitoring a voltage fluctuation value in real time and generating a surface crack density coefficient through the control module; and the ultrasonic probe is used for monitoring an echo amplitude value in real time and generating an internal defect attenuation coefficient through the control module. By integrating the eddy current sensor and the ultrasonic probe, detection of surface cracks (voltage fluctuation monitoring) and internal defects (echo amplitude analysis) of the flange forge piece is synchronously achieved, the problem that the surface quality and the internal quality cannot be considered in a traditional single detection mode is solved, and the safety risk caused by missing detection of the defects is reduced.

The invention provides a battery device, an energy storage device and a power utilization device. The battery device comprises a single battery and an electric control assembly electrically connected with the single battery, the electric control assembly comprises a circuit board, a shell and a covering structure, and a connector socket is arranged on the circuit board; a containing cavity is formed in the shell, the circuit board is installed in the containing cavity, and an opening for the connector socket to stretch out is formed in the shell. The covering structure is arranged on the shell and surrounds the connector socket, and the covering structure at least partially covers a gap between the connector socket and the side wall of the opening. By arranging the covering structure, installing the covering structure on the shell, supporting the covering structure through the shell, arranging the covering structure around the connector socket and enabling the covering structure to at least partially cover the gap between the connector socket and the side wall of the opening, the connector socket can be protected according to the protection grade requirement. And the gap between the connector socket and the side wall of the opening is shielded, reduced or closed, so that the electric control assembly meets the required protection grade requirement.

The invention relates to the technical field of electric tools, in particular to a high-stability electric circular saw base which comprises a main machine shell, a lateral protective cover is movably assembled on the side wall of the main machine shell, an electric control type cutting circular saw is installed on the side wall of the main machine shell and located in the lateral protective cover, and a lateral stability adjusting base is arranged on one side of the main machine shell. And a side hanging type dust collecting box is mounted on the side wall of the lateral stable adjusting seat. According to the high-stability machine base for the electric circular saw, the lateral stability adjusting base is arranged on one side of the main machine shell, the position of the whole electric circular saw is limited through the lateral stability adjusting base, and therefore the stability of the electric circular saw in the mounting and cutting process is improved, and operation is convenient; the embedded overhead guide rail with the built-in electric control lead screw is fixedly assembled on the upper surface of the lateral stability adjusting seat, the electric control lead screw is directly connected with the main machine shell and is controlled, and storage and unfolding are convenient.

The invention belongs to the field of laboratory automation equipment, and discloses a control method and system of a task execution device for physical and chemical experiment operation, and the method comprises the steps: initializing and calibrating the device; receiving and analyzing an experiment task instruction; collecting object information through a visual sensor; the upper computer generates an execution scheme according to the strategy library; the electric control rotary clamping jaw is driven to complete operation; force and displacement parameters are monitored in real time, and dynamic adjustment actions are fed back through a closed loop; and judging that the operation is completed according to the threshold. The system comprises a visual sensor, a rotary driving body, an electric control rotary clamping jaw and an upper computer. By integrating visual identification and force sense feedback, fine operations such as clamping, taking and placing, bottle cap screwing and the like can be completed in a self-adaptive mode, the efficiency, precision and reliability of laboratory automatic operation are remarkably improved, manual operation errors are reduced, and good application prospects are achieved.

The invention belongs to the technical field of aircraft design, and particularly relates to an integrated tilting power system integrated with hydrogen fuel cell motor electric control and an aircraft. Comprising a tilting mechanism connected with a machine body; the integrated motor and controller is fixedly connected with the tilting mechanism and located at the end, close to the upstream of the incoming flow, of the tilting mechanism; the tilting rotor wing is mounted at one end, close to the incoming flow upstream, of the integrated motor and controller; the hydrogen fuel cell is fixedly connected with the tilting mechanism and is positioned at one end, close to the downstream of the incoming flow, of the tilting mechanism; the nacelle shell wraps the tilting mechanism, the integrated motor, the controller and the hydrogen fuel cell; the nacelle outer heat dissipation fins wrap the nacelle in the circumferential direction; and the tilting mechanism, the integrated motor and controller and the liquid cooling radiating pipeline of the hydrogen fuel cell exchange heat with the radiating fins outside the nacelle.

The invention relates to the technical field of new energy automobile electric control, and discloses a self-adaptive voltage dynamic stability control method for a new energy automobile converter. The method comprises the following steps: acquiring a real-time voltage time sequence data sequence of the new energy automobile converter in an operation period; performing voltage disturbance characteristic analysis on the real-time voltage time sequence data sequence based on a rated voltage interval of the converter, and identifying voltage disturbance modal information of the converter; then, according to an embedded voltage control strategy library and a voltage stability threshold condition, an initial voltage regulation and control instruction sequence is generated in combination with voltage disturbance modal information of the converter; performing voltage change trend prediction on the voltage disturbance modal information of the converter to obtain predicted voltage disturbance modal information; performing voltage control compensation optimization on the initial voltage regulation and control instruction sequence based on the predicted voltage disturbance modal information to generate an optimized voltage regulation and control instruction sequence; and performing adaptive voltage regulation on the new energy automobile converter according to the optimized voltage regulation instruction sequence.

The invention relates to the technical field of temperature control, in particular to an electric control cabinet temperature control method based on simulation, and the method comprises the steps: obtaining the basic data of a target electric control cabinet; constructing a target three-dimensional model associated with a core component temperature tolerance threshold and a parameter stable temperature interval based on the basic data; fusing the target three-dimensional model and historical temperature information to generate a temperature monitoring area; dynamic temperature monitoring is realized based on a monitoring area, and adaptive temperature control adjustment is executed in combination with an association relationship between temperature rise and component parameters. According to the invention, through deep fusion of three-dimensional modeling, historical temperature analysis and component characteristics, precision of temperature monitoring and self-adaption of temperature control adjustment are realized, it is effectively guaranteed that core components operate in a safe temperature interval, temperature control reliability and operation stability of the electric control cabinet are significantly improved, and energy consumption and operation and maintenance cost are reduced.

The invention provides a tool applied to the field of petroleum drilling, and particularly relates to an electrically-controlled reducing cutter, which has the technical scheme that the extension and retraction of the cutter are accurately controlled by a control base driving motor and an electromagnet, wherein the control base driving motor comprises an MCU (Microprogrammed Control Unit) and a wireless communication module; the control base can receive a ground instruction and transmit an underground working state signal back in real time; meanwhile, the ratchet mechanism is matched with the electromagnet to achieve extending and retracting of the cutter position, and the pawl is always in close contact with the ratchet wheel under the action of the spring. And the lower shell is in threaded connection with the guide shoe. The cutting knife is driven to rotate through the transmission shaft, the cutting knife is controlled to stretch out and retract through the intelligent electric control system, continuous cutting of casing pipes with different pipe diameters can be achieved, the tripping frequency is reduced, and the casing pipe cutting efficiency in the well abandoning operation process is greatly improved.

The invention is suitable for the technical field of batteries, and provides a battery device, an energy storage device and a power utilization device. The battery monomers are accommodated in the box body; the electric control assembly is contained in the box body, the electric control assembly comprises a support and an electric control part, the support comprises a support body, the side, facing the battery single bodies, of the support body is connected with a protruding structure, and the electric control part is arranged on the side, away from the battery single bodies, of the support body; the electric control assembly further comprises a heat insulation plate arranged on the side, facing the battery single bodies, of the support body. The heat insulation plate, the support body and the protruding structure define a cavity. According to the battery device provided by the embodiment of the invention, the convex structure is arranged on one side, facing the battery monomers, of the bracket main body, and the cavity is defined by the heat insulation plate, the convex structure and the bracket main body, so that heat transfer is hindered and a heat insulation effect is achieved through the combined action of the cavity and the heat insulation plate; therefore, the negative influence of high temperature generated by the single battery on the electric control assembly is reduced.

The embodiment of the invention discloses an edible particle distributor which comprises a head cabin body, a tail cabin body and at least one middle cabin body, the head cabin body, the tail cabin body and the at least one middle cabin body are detachably overlapped along a preset overlapping axis, and the middle cabin bodies are located between the head cabin body and the tail cabin body; the edible particle distributor further comprises an electric control locking unit and a manual lock catch, a control part of the manual lock catch is covered in the overlapped state, and the head cabin body and the middle cabin body close to the head cabin body are detachably overlapped through the electric control locking unit. When the tail cabin body and the middle cabin bodies close to the tail cabin body are arranged, and when a plurality of middle cabin bodies are arranged, every two adjacent middle cabin bodies are detachably overlapped through manual lock catches. According to the edible particle distributor, the head cabin body and the middle cabin body are unlocked through the electric control locking unit, so that the control parts of the manual lock catches are exposed, then the middle cabin body and the tail cabin body are unlocked through the manual lock catches, all the cabin bodies are dismounted, tools are not needed, and the dismounting difficulty of the edible particle distributor is reduced.

The invention discloses a quick broiler fresh-locking refrigeration house which comprises a refrigeration house body, an in-house opening and closing door is installed on the inner wall of the refrigeration house body, an electric controller is installed on the same side of the in-house opening and closing door, an even number of driving motors are installed on the refrigeration house body, an out-house opening and closing door is installed on the outer wall of the refrigeration house body, and an even number of outdoor condensation units are installed on the top of the refrigeration house body. An in-storage bin is arranged in the refrigeration storage, inner supporting columns are fixed to the four corners of the in-storage bin, and an even number of cold supply assemblies are installed on the top of the in-storage bin. After cold air is input into the conveying air guide cylinder, the cold air is divided into two parts through the flow dividing inner cavity, enters the independent frame inner cavity and is guided to the connecting cover opening through the cavity wall air guide block; meanwhile, the plate side temperature sensor feeds back a temperature signal to the electric controller, the electric controller is triggered to adjust the first electric control motor and the second electric control motor, the air volume and the air outlet angle are changed, and air outlet of the duckbilled covers with the shutters at different heights is matched with the temperature of products placed on the movable goods shelf; and the condition of freshness locking failure caused by slow cooling and large temperature difference of broiler chickens on middle and lower shelves is avoided.

The utility model discloses a hanging scaffold device for vertical shaft construction in the technical field of vertical shaft construction, which comprises a hoisting derrick, a construction hanging scaffold component is arranged at the bottom of the hoisting derrick, the construction hanging scaffold component comprises a supporting top cover, a lifting controller is mounted at the bottom of the supporting top cover, and a construction hanging scaffold part is hoisted at the bottom of the lifting controller. The lifting controller comprises an electric control box body, and a guide cover plate is installed at the bottom of the electric control box body. According to the vertical shaft hanging scaffold device designed in the scheme, through cooperative use of the electric control box body, the guide cover plate and the winch protective cover, the situation that the two strands of hoisting steel cables are wound when the construction hanging scaffold assembly is hoisted and lifted can be prevented; and the auxiliary functions of buffering and damping, load self-adaption, steady-state guiding and the like can be achieved for the two hoisting steel cables subjected to winding adjustment, the operation stability, the anti-jamming capability and the use safety of the construction hanging scaffold component in the lifting process are improved, and structural damage and potential safety hazards caused by swinging, deflection or impact of the construction hanging scaffold component are effectively avoided.

The utility model discloses an electronic brake gear adjusting device for a water dripping wheel, which relates to the technical field of fishing gears and comprises a line cup component, a line wheel seat, a magnetic brake component, a cover plate and an adjusting operation unit. The adjusting operation unit comprises a gear adjusting rotating ring, an operation rod and a shifting piece. The gear adjusting rotating ring is rotationally installed on the inner side of the cover plate, and the operating rod penetrates through an arc groove in the cover plate to stretch out. The shifting piece is fixed to the bottom end of the gear adjusting rotating ring and sequentially triggers a plurality of toggle switches on the electric control board along with rotation of the rotating ring. According to the utility model, a discrete triggering mode that the mechanical swivel is combined with the toggle switch is adopted, traditional potentiometer adjustment is replaced, the problem of reliability caused by potentiometer abrasion is solved, meanwhile, clear gear feedback and operation hand feeling are provided for a user, and the device has the advantages of being simple in structure, long in service life and visual in operation.

The application provides a torpedo anchor and a use method thereof, and relates to the technical field of anchoring equipment. The torpedo anchor comprises an anchor body, an anchor head, an inflatable air bag and an electric control igniter. The anchor body comprises a plurality of sub-anchor bodies which are sequentially nested. The top plates of any two sub-anchor bodies nested with each other have an accommodating space therebetween. The anchor head is fixedly connected with the bottom of the innermost sub-anchor body. The inflatable air bag is used for placing an explosive agent. The accommodating space is provided with the inflatable air bag. The electric control igniter is used for igniting the explosive agent. The length of the torpedo anchor after penetrating into the stratum is lengthened by using the air bag inflation impact method, so as to increase the contact area and friction force of the torpedo anchor and the stratum, and significantly improve the pullout bearing capacity of the torpedo anchor. The cooperation structure of each sub-anchor body in the application is simple and has high stability, and does not need a complex mechanical structure. Therefore, the torpedo anchor still has good stability on the premise of realizing the stretching of the torpedo anchor in the bottom layer.

The invention discloses a copper foil production system and method.The copper foil production system comprises an electrolytic bath and a cathode roller arranged in the electrolytic bath and further comprises a partition anode module, a partition cooling module, a detection module and a control system; the partitioned anode module comprises a plurality of anode assemblies which are arranged along the axial direction of the cathode roller, and an electric control module which is respectively connected with each anode assembly; the subarea cooling module comprises a plurality of cooling structures which are arranged in the cathode roller and are in one-to-one correspondence with the anode subareas, and a cooling control module which is respectively connected with each cooling structure; the control system is electrically connected with the electric control module, the cooling control module and the detection module. According to the method, differentiated cooperative control of partition current and cooling can be intelligently executed according to the source and size of supersaturation degree deviation, so that rapid directional compensation is performed at any axial position, and the defects of response lag and extensive regulation and control in a traditional mode are effectively overcome.

The invention discloses an integrated rigidity damping inerter self-control type two-stage vibration reduction hydro-pneumatic suspension and a working method in the field of automobiles, a hollow plunger extends into an upper cavity of an oil cylinder, the lower end of the hollow plunger is fixedly connected with a piston, and an upper lifting lug runner is sequentially connected with an inerter pipe, an electric control throttle valve and a large hydro-pneumatic chamber through a first hydraulic oil pipe; a lower lifting lug runner is sequentially connected with a damper and a small oil gas chamber through a second hydraulic oil pipe, a built-in rigidity control valve outer cylinder with the lower end fixedly connected with a piston is arranged in the plunger, an inner cylinder with the upper end sealed and the lower end connected with the lower lifting lug through a spherical hinge is coaxially sleeved with the outer cylinder, and three rows of holes are formed in the side wall of the inner cylinder from bottom to top. Two rows of holes are formed in the side wall of the outer cylinder from bottom to top; the flow direction of oil liquid is changed when the suspension works, a seal does not need to be arranged on a piston, a longer oil through hole is formed in an outer barrel, the safety of the control valve is improved, a wheel dynamic vibration absorber is integrated to an oil cylinder, integration is achieved, an external rigidity control valve is replaced with an internal rigidity control valve, and the size of the whole suspension is reduced.

The invention discloses a smelting process monitoring system of a medium-frequency electric furnace and a process guidance method of the smelting process monitoring system. The system comprises an edge acquisition terminal and a cloud platform, the edge acquisition terminal comprises an intermediate frequency voltage transmitter used for acquiring a voltage signal at the output side of the intermediate frequency electric control cabinet and converting the voltage signal into a first analog signal; the intermediate-frequency current transmitter is used for collecting a current signal at the output side of the intermediate-frequency electric control cabinet and converting the current signal into a second analog signal; the analog quantity conversion module is used for converting the first analog signal and the second analog signal into digital signals; the intelligent thermodetector is used for measuring the temperature of the molten metal in real time and sending temperature data; the cloud platform is used for receiving and processing the digital signal and the temperature data and storing high-frequency sampling data; identifying a smelting stage through an LSTM network; power control is optimized on the basis of a Transform model and a GAN model; and integrating an expert knowledge base and providing process guidance. According to the system, comprehensive digitization and real-time accurate sensing of the smelting process are achieved; and the timeliness and scientificity of decision making are improved.

The invention discloses a radiotherapy laser positioning system and method, the system comprises at least three laser lamp systems, corresponding optical cameras and a computer control system, the laser lamp systems form cross cursors through two linear emitters installed in a T shape, the cross cursors are respectively arranged on the left side, the right side and the upper side of a treatment device, and a three-dimensional space positioning coordinate system is constructed. The optical camera automatically collects images of the body surface mark points of the patient and the laser cursor, and the computer control system carries out image processing, feature extraction and three-dimensional deviation calculation and feeds back deviation information to the treatment bed or the laser lamp system; and the electric control system drives the fine adjustment mechanism to perform three-degree-of-freedom accurate adjustment of translation, rotation and inclination until the mark point coincides with the cursor. According to the invention, optical automatic identification is adopted to replace manual naked eye positioning, personal errors are eliminated, rapid and automatic correction is realized, and the accuracy and efficiency of radiotherapy positioning are significantly improved.

The invention provides a multi-pump zero-displacement hydraulic agile control system and a control method thereof. The system is composed of a hydraulic system, a mechanical system and an electric control system. According to the control method, a multi-pump zero-displacement switching mechanism and a deep reinforcement learning strategy based on an Actor-Critic architecture are fused, the effective oil supply amount is adjusted by dynamically starting and stopping part of hydraulic pumps, a servo motor rotating speed instruction is output in real time in combination with a neural network, and the strong coupling dynamic relation between sliding block displacement and the angle of a swing rod is coordinated. The system switches part of the pumps to a bypass state when approaching balance so as to reduce energy consumption, and starts all the pumps to guarantee recovery capacity when greatly deviating. According to the technical scheme, on the premise of not depending on an accurate mathematical model, agile, stable and energy-saving control over the inverted pendulum type under-actuated system can be achieved.

The invention belongs to the field of air purification, and relates to module combined type comprehensive purification equipment and a purification method thereof.The module combined type comprehensive purification equipment is characterized in that a first gas sensor is arranged in a harmful gas collecting header pipe, and a second gas sensor is arranged in a pipeline between an exhaust port of a module combined type washing tower and a third electric control three-way valve; the first gas sensor and the second gas sensor are electrically connected with the ARM processor, and the ARM processor controls opening and closing of the module combined type washing tower, the mixing atomizing chamber and the module combined type adsorption box and controls opening and closing of the first electric control three-way valve, the second electric control three-way valve and the third electric control three-way valve. According to the method, the comprehensive harmful gas treatment sequence is as follows: firstly, acidic or alkaline dirt is removed, and then, activated carbon particle filtration and adsorption are performed. According to the invention, diversified, staged and complicated mixed harmful waste gas can be automatically and effectively purified.

The invention provides multi-parameter air pollution real-time monitoring equipment, and relates to the technical field of air monitoring. A detection sensor is fixed on a bottom plate of the electric control box in a penetrating manner; a rectangular track frame is fixedly mounted below the electric control box; an abutting plate and a square blocking frame which are vertically arranged at an interval are formed in the rectangular track frame, a circular through hole is formed in the abutting plate in a penetrating mode, the abutting plate abuts against and makes contact with the bottom end of the detection sensor, and the circular through hole communicates with an opening in the bottom end of the detection sensor; a peripheral retaining frame is slidably mounted in the rectangular track frame, a metal filter screen is arranged in the peripheral retaining frame in a covering manner, and the metal filter screen is slidably matched with the interval space between the abutting plate and the square blocking frame in a penetrating manner and covers the bottom side opening of the circular through hole. Compared with the prior art, the method has the advantages that the tedious steps that the metal filter screen needs to be detached and taken down, and an external brushing tool is used for manually brushing and cleaning the blockage of the metal filter screen can be omitted, and the efficiency and convenience of the blockage cleaning operation of the metal filter screen can be improved.

The invention relates to the technical field of packaging machines, in particular to an automatic strip jointing and continuous conveying device for a soft cotton towel bag making machine, which comprises a deviation correcting device and a strip, a first vertical plate is arranged at the rear end of the upper surface of the base, at least one material roll feeding device is arranged at the right end of the outer side face of the base, a baffle is installed at the position, close to the material roll feeding device, of the outer side face of the base, and a laser transmitter and a laser receiver are installed on the front side face and the upper surface of the baffle respectively. According to the automatic strip jointing and continuous conveying device for the soft cotton towel bag making machine, through the collaborative design of the electric heating laminating device and the material roll feeding device, automatic hot melting bonding of the ends of new and old material rolls is achieved; the first electric control telescopic rod drives the rectangular frame to press downwards, hot melting bonding is carried out on the end of the strip through electric heating of the nickel-chromium alloy strip, accurate alignment and press fit are completed in combination with the fifth rollers and the pressing plate which are symmetrically distributed, and manual repeated strip threading is not needed.

The invention discloses a molecular film type automotive nitrogen and oxygen separation device which comprises a turbocharger, a nitrogen and oxygen separator, a gas inlet valve, a gas outlet valve, a negative pressure pump and an electric control throttling valve. The turbocharger is driven by a turbine in an automobile turbocharger, so that the air is compressed to be conveyed to two paths of the nitrogen and oxygen separation device, the nitrogen and oxygen separation device can separate oxygen from the air, the air with high oxygen content is output, and the air is supplied to an engine for use through the gas outlet valve. The two paths of the nitrogen and oxygen separation device work alternately, when the temperature of the two paths of the nitrogen and oxygen separation device is too high to influence oxygen production efficiency, a main air inlet pipeline is opened to provide air normally by controlling the opening degree of the electric control throttling valve, and thus the phenomena of gas circuit plugging and engine stalling are avoided. According to the automotive nitrogen and oxygen separation device, the two branch paths work alternately, high concentration oxygen can be supplied to the engine continuously so that fuel can burn and act, and the burning utilization rate of the fuel is improved.