33results about How to "Judging the service life" patented technology

The invention provides a torque motor based diamond cutting disc performance testing device and method, and relates to a testing device for detecting a diamond cutting disc performance. The testing device is provided with a support, an angle grinder, a diamond cutting disc, an angle grinder movement sliding block frame, a screw rod, a guide rail, a guide rail fixing frame, a torque motor, a coded disk, a diamond cutting disc outer diameter detector, a compute controller and a panel fixing frame; the angle grinder is fixedly connected with the angle grinder movement sliding block frame, the angle grinder is vertically arranged, the diamond cutting disc is vertically arranged on the angle grinder, the angle grinder movement sliding block frame is connected with one end of the screw rod and is in moving cooperation with the guide rail, the guide rail is horizontally arranged on the guide rail fixing frame, one end of an output shaft of the torque motor is connected with the other end of the screw rod, the other end of the output shaft of the torque motor is connected with the coded disk, the diamond cutting disc outer diameter detector is arranged at one end of the guide rail, and the angle grinder, the diamond cutting disc outer diameter detector, the torque motor and the coded disk are all electrically connected with the computer controller.

The invention provides a service life test system of a contact-type switch and a service life test method. The service life test system of the contact-type switch comprises a tested switch, a drive device, a first counting device and a second counting device, wherein the drive device drives the tested switch to be turned on and off; the first counting device is electrically connected with the drive device to record drive times of the drive device; the second counting device is electrically connected with the tested switch to record switch-on times of the tested switch. The service life test system of the contact-type switch and the service life test method can be used for testing whether the tested switch has a false operation phenomenon and then judges the service life of the switch.

The invention discloses a method for evaluating the service life of a power grounding grid. The method mainly comprises the following steps: screening the key affecting factors affecting the service life of the grounding grid; evaluating the weights of the screened factors; and calculating and evaluating the practical service life of the power grounding grid to be measured according to the basic parameters and designed life of the grounding grid. The method for evaluating the service life of the power grounding grid has the effects of being capable of comprehensively, objectively and qualitatively judging the service conditions of the power grounding grid, reflecting the service life of the grounding grid and providing reference for corrosion prevention and periodic maintenance of the grounding grid.

The invention provides a pollution flashover test method for simulating erosion and ageing of an RTV coating on an insulator surface. The pollution flashover test method comprises the steps that firstly, a flexible thermal insulation material is used for completely wrapping an insulator coated with the RTV coating, a strip-shaped area is chosen on the outer surface of the flexible thermal insulation material, the flexible thermal insulation material in the strip-shaped area is removed through a cutter and a simulated erosion and ageing belt on the outer surface of the RTV coating is exposed, the RTV coating surface of the simulated erosion and ageing belt is then burned by using a high temperature spraying gun, and at last a pollution withstand pressure test is carried out on the insulator. According to the pollution flashover test method, the pollution flashover resistance level and the service life of the insulator are judged simply, quickly and accurately, the high temperature of aleakage electric current, surface discharge and a flashover electric arc, and RTV coating carbonization caused by the action of a large current and even a melted pollution flashover test can be further simulated, so that the insulator reaching the life time limitation can be changed timely, and the occurrence of a flashover situation is prevented.

The invention provides a method and system for calculating the service life of a filter element and a terminal. The method comprises the following steps that one or more of a TDS value of water treated by the filter element, a single water discharging flow rate and single water discharging time of the filter element and single water producing time of the filter element are obtained; a TDS change curve is obtained according to the TDS value, a relation curve between the water discharging flow and the water discharging time is obtained according to the single water discharging flow and the single water discharging time, and a water producing time change curve is obtained according to the single water producing time; and according to preset working indexes of the filter element, the service life of the filter element is calculated based on one or more of the TDS change curve, the relation curve between the water discharging flow rate and the water discharging time and the water producingtime change curve. According to the method and system for calculating the service life of the filter element and the terminal, the multi-dimensional indexes of the filter element are obtained based onremote monitoring data, the service life of the filter element is judged based on the multi-dimensional indexes, and the accuracy is high.

The invention discloses a cable service life detection machine, which comprises a rack, a driving piece, a resistance piece and two winding reels, and is characterized in that the two winding reels are rotatably arranged on the rack, the two winding reels are arranged in parallel, and the axes of the two winding reels are parallel to each other; the driving piece is arranged on the rack and used for driving one of the winding reels to rotate; the resistance piece is arranged on the rack and used for increasing the rotating resistance of the other winding reel. The detection machine is simple in structure, reasonable in layout, simple and convenient to operate, and capable of effectively detecting the service life of the cable.

The invention discloses a phase-change material service life testing system. The system comprises an oil bath pan, a test tube, an electric heating apparatus, a cooling device and a computer, the oil bath pan comprises a pan body for containing a heat-conducting medium, a stirrer for stirring a heat-conducting medium, and a first temperature sensor for detecting the heat-conducting medium temperature; the test tube internally contains the phase-change material, and the test tube is in the pan and fixed on a fixing support; the electric heating apparatus is used for heating the heat-conducting medium in the oil bath pan; the cooling apparatus is used for cooling the heat-conducting medium in the oil bath pan; the electric heating apparatus is electrically connected to a temperature controller, the first temperature sensor, the temperature controller and the cooling device are connected to the computer through a communication module, and the computer controls the electric heating apparatus and the cooling device to start and close according to temperature signal fed back by the first temperature sensor. The system has the advantages of reasonable structure, usage safety, high test result accuracy, and good usage effects.

The invention provides a monitoring device and monitoring method of a signal surge protector. The monitoring device comprises a lightning intensity monitor for monitoring the lightning intensity through the signal surge protector, and a monitoring controller, wherein the monitoring controller comprises a master control unit, a service lifetime monitoring input unit for obtaining the lightning intensity, and a communication unit; the service lifetime monitoring input unit is connected with the master control unit and is connected with a remote control terminal through the communication unit; and the service lifetime monitoring input unit is connected with the lightning intensity monitor. By the monitoring device and the monitoring method, the service condition of the signal surge protector can be immediately known, so that a secondary disaster caused by a failure of the signal surge protector is avoided.

The invention discloses a PEMFC bipolar plate service life testing device and method. The device comprises a bipolar plate, a flow field on the bipolar plate, a cover plate, a bottom plate, a microporous filter membrane, a flexible counter electrode, a heating membrane, a gas supply device and a simulated PEMFC environment circulating liquid supply device. Gas channels are formed in fluid inlet and outlet positions of the polar plates; the gas supply device is provided with various fluid measuring instruments, and the liquid supply device comprises a peristaltic pump and a flow meter. When inuse, the bipolar plate test flow field surface is covered with the microporous filter membrane and the flexible counter electrode, and the back surface is covered with the heating membrane and fixed between the cover plate and the bottom plate; after liquid and gas simulating the PEMFC environment are introduced, the bipolar plate is polarized to the corresponding potential and then operates for along time, and the use condition of the bipolar plate is judged by detecting the ion concentration in the circulating solution. The invention solves the problem that the service life of the metal bipolar plate cannot be independently evaluated, the test method and the evaluation means are simple and practical, the service life of the bipolar plate can be accurately judged, and the device is suitable for being widely popularized in metal bipolar plate service life tests.

The invention relates to a hinged shaft support and test equipment. The hinged shaft support comprises a first bracket mechanism, a rotating mechanism which is rotationally connected with the bracketmechanism, and a connecting shaft which is in transmission connection with the rotating mechanism, and one end of the connecting shaft is used for being fixedly connected with one end of a measured object. The rotating axis of the connecting shaft is perpendicular to the rotating axis of the rotating mechanism. During testing, the tested object is bent downwards to drive the connecting shaft to incline downwards to automatically adjust the angle, so that abnormal stress concentration at the connecting tail end of the tested object and the connecting shaft can be reduced, and the test effect ofthe whole set of test equipment can be prevented from being influenced.

The invention discloses a method and a device for analyzing the life of expressway electromechanical equipment, and relates to the technical field of computers. One specific implementation way of themethod comprises the following steps that: obtaining sample data, wherein the sample data comprises the operation state of the electromechanical equipment at each historical time point; according to the sample data, constructing the one-step transition probability matrix of the operation state of the electromechanical equipment; according to the one-step transition probability matrix, calculatingthe state limiting probability tendency of the operation state of the electromechanical equipment; according to the state limiting probability tendency, constructing the fault probability graph of theelectromechanical equipment; and analyzing the fault probability graph to obtain the service life of the electromechanical equipment. By use of the implementation way, the prediction accuracy of theactual life and the service life of the expressway electromechanical equipment can be improved, and the functions of preventing accidents, reducing fault losses and prolonging the life of the equipment can be performed for the maintenance and management work of the expressway electromechanical equipment.

The invention relates to a deflection loading device and test equipment. The deflection loading device comprises a supporting mechanism, aloading connecting mechanism and a first driving mechanism, wherein the loading connecting mechanism is connected with the supporting mechanism and used for rotationally clamping a measured object, and when the loading connecting mechanism slides to a first position relative to the supporting mechanism, the measured object is bent to a target degree; and the first driving mechanism is connected with the loading connecting mechanism and is used for driving the loading connecting mechanism to slide relative to the supporting mechanism. When the first driving mechanism drives the loading connecting mechanism to slide to the first position relative to the supporting mechanism, the measured object is bent to the target degree, a certain bending angle is formed, and the function of simulating the well bottom bending working condition is achieved.

The invention relates to a device for observing overpressure of a mooring rope for constructional engineering, belongs to the field of buildings, and particularly relates to a mooring rope protector for a building. The mooring rope protector for the building comprises a shell, a first connecting piece, a second connecting piece and a snapping piece, wherein the first connecting piece is connected with the second connecting piece through the snapping piece; the shell sleeves the outsides of the first connecting piece, the second connecting piece and the snapping piece; and after the snapping piece is snapped off, the shell bears a tensile force between the first connecting piece and the second connecting piece. By the design of the snapping piece which can be snapped off, use safety of the mooring rope can be guaranteed effectively, before the tensile force reaches a rated snapping-off force of the mooring rope, the snapping piece is snapped off at first, then whether the mooring rope is used in an overload manner can be observed effectively, and the protective feature of the mooring rope is improved. By the design of a weak link arranged on the mooring rope, whether the mooring rope is in an overpressure state or not when used can be judged, and therefore, the service life of the mooring rope in a using process can be judged.

The invention discloses a garbage sweeping mechanical structure based on a low-carbon environment-friendly sweeper, relates to the technical field of garbage sweeping, and solves the problems that when an air filter element of an existing vacuum type garbage sweeper is replaced, the sweeper needs to be disassembled and assembled, operation is stopped, and the steps are tedious. The garbage sweeping mechanical structure based on a low-carbon environment-friendly sweeper comprises a filter element mechanism. And the filter element mechanism consists of a filter element outer sleeve and a filterelement inner sleeve. When the device is used, after the air filter element is blocked to different degrees, the suction force borne by the filter element inner sleeve is increased, so that the filterelement inner sleeve moves towards the interior of the filter element outer sleeve, whether the filter element needs to be replaced or not can be judged through the observation block of the filter element inner sleeve, stable use of the device is guaranteed, and a fan is protected against damage; and the filter element mechanism used by the device can be replaced after the adjusting handle is pulled, so that the rotated-out filter element mechanism is replaced, the machine does not need to be disassembled, operation is not stopped, the steps are simple and convenient, and operation is flexible.

The invention provides a detection system and method for the service life of a membrane module, which belong to the technical field of micro-filtration or ultra-filtration. The system comprises a water inlet tank, a water inlet pump, a water inlet solenoid valve, a water outlet solenoid valve, a pressure gage, a heating unit and a control unit. The method disclosed by the invention comprises the following steps of: firstly, connecting the membrane module into the detection system; heating water in the water tank; opening the water inlet solenoid valve and closing the water outlet solenoid valve to ensure that impact pressure in the membrane module reaches specified pressure, and keeping the pressure in regulated time; then, opening the water outlet solenoid valve and closing the water inlet solenoid valve; rapidly discharging water and leaking pressure to zero; returning outlet water back to the water inlet tank; and circularly and alternatively carrying out pressure keeping operation and pressure leaking operation, wherein the cycle period is at least 100000 times. According to the detection system and method disclosed by the invention, a stressing condition of the membrane module under circulating impacting acting force in an application operation process can be simulated through alternative circulation of pressure keeping and pressure leaking periods of the impact pressure, and the sealing effect of a glue sealing end face of the membrane module is effectively evaluated, so that the service life of the membrane module is judged.

An electronic device with brightness indication driving circuit features that the alternative current of an AC unit in the electronic device is used to drive a brightness indicator (such as cold light plate), and the indicated brightness can be used to judge the service life of said AC unit.

The invention discloses a new energy automobile storage battery charging and discharging monitoring system, and relates to the technical field of new energy automobiles, the new energy automobile storage battery charging and discharging monitoring system comprises a central processing unit, a monitoring system, a storage battery and a management system, the monitoring system is used for monitoring the working state of the storage battery, and after monitoring, the monitoring system transmits a signal to the central processing unit; and the management system manages the monitored information data. The charging and discharging monitoring system for the new energy automobile storage battery can monitor the working state of the new energy automobile storage battery in real time, so that a user can know the working state of the storage battery at any time, when the storage battery is used up, an alarm can be given out to remind the user, meanwhile, the storage battery is charged, and the user experience is improved. The storage battery can support normal work of the automobile, and when the electric quantity of the storage battery is about to be used up, the power-saving mode can be started.

The invention discloses an automatic repairing device for wooden furniture in the field of furniture processing, comprising a workbench located below and a repairing box located above. The interior of the repairing box includes an upper transmission chamber and a lower ejection chamber, and the upper transmission chamber includes a vertical rotation The shaft, the surface of the rotating shaft is sleeved with a cylindrical cam, the cylindrical cam is in contact with the first rack during the rotation process, the first rack is meshed with a circular gear, one end of the circular gear is meshed with the first rack, and the other end of the circular gear is meshed with a The second rack, the bottom of the second rack is meshed with a disc cam, and the disc cam is in contact with the ejector group during the rotation stroke. In this technical solution, reciprocating contact compression is used, and the compression process is divided into compression ‑Re-pressing‑Retraction, the burrs generated by the repair are smoothed during the re-pressing process, and at the same time, they are rotated during the re-pressing process to scrape off the excess paint or glue surface.

The invention provides a torque motor based diamond cutting disc performance testing device and method, and relates to a testing device for detecting a diamond cutting disc performance. The testing device is provided with a support, an angle grinder, a diamond cutting disc, an angle grinder movement sliding block frame, a screw rod, a guide rail, a guide rail fixing frame, a torque motor, a coded disk, a diamond cutting disc outer diameter detector, a compute controller and a panel fixing frame; the angle grinder is fixedly connected with the angle grinder movement sliding block frame, the angle grinder is vertically arranged, the diamond cutting disc is vertically arranged on the angle grinder, the angle grinder movement sliding block frame is connected with one end of the screw rod and is in moving cooperation with the guide rail, the guide rail is horizontally arranged on the guide rail fixing frame, one end of an output shaft of the torque motor is connected with the other end of the screw rod, the other end of the output shaft of the torque motor is connected with the coded disk, the diamond cutting disc outer diameter detector is arranged at one end of the guide rail, and the angle grinder, the diamond cutting disc outer diameter detector, the torque motor and the coded disk are all electrically connected with the computer controller.

The invention discloses a double-wire combination principle-adopted high-volume energy density metal lithium battery. The double-wire combination principle-adopted high-volume energy density metal lithium battery structurally comprises a wire outlet, a LOGO groove, a lithium battery pack, a connection plug, a plug buckle plate and a power cord, wherein the wire outlet is of a circular structure and is arranged at the left upper end of the lithium battery pack to form an integrated structure. The lithium battery pack consists of a plurality of lithium battery main bodies; when overhauling is required, a locking assembly is pulled away from an inner through hole, an arc-shaped foot is released and then the lithium battery main bodies can slide out from an embedded concave rail; during the overhauling, distance sleeve frames can be observed, the volumes of metal lithium blocks are decreased according to oxidation and corrosion, and the distance sleeve frames internally release support force and are pushed outwards by own springs to be exposed from the lithium battery main bodies, so that the overhauling personnel can judge the service life of the metal lithium blocks and judge whetherthe metal lithium blocks are damaged or not according to the exposed distances of the distance sleeve frames; and the whole using is simple and rapid in independent dismounting process and the overhauling judgement is convenient, so that the battery pack is prevented from being invalid and the using cost is saved.

The invention relates to a hydraulic system and alternating stress fatigue testing equipment, which includes a hydraulic oil tank for storing oil required by the hydraulic system; a first power system, whose input end communicates with the hydraulic oil tank, and the first power system includes a second An output branch and a second output branch, the first output branch communicates with the first oil cylinder mechanism of the deflection loading device, so that the first oil cylinder mechanism drives the measured object clamped by the deflection loading device to drop to the target position; the second The output branch communicates with the first motor mechanism of the deflection loading device, so that the first motor mechanism can lock the object to be measured after it is lowered to the target position; the second power system, its input end communicates with the hydraulic oil tank, and the second power system includes The third output branch, the fourth output branch, the fifth output branch and the sixth output branch; the circuit system, which is respectively connected with the first oil cylinder mechanism, the first motor mechanism, the fourth motor mechanism, the third motor mechanism, The return oil path of the second oil cylinder mechanism and the second motor mechanism is communicated.

The invention relates to a deflection loading device and testing equipment, including a supporting mechanism; a loading connection mechanism connected to the supporting mechanism for rotating and clamping the object to be measured, and the loading connection mechanism slides to the first position relative to the supporting mechanism. When in a first position, the object under test is bent to a target degree; a first driving mechanism, which is connected with the loading connection mechanism, is used to drive the loading connection mechanism to slide relative to the support mechanism. When the first driving mechanism drives the loading connection mechanism to slide to the first position relative to the support mechanism, the measured object is bent to the target degree, that is, a certain bending angle is formed, and the function of simulating the bottom-hole bending condition is realized.

The invention discloses a high attitude device information processing system, which comprises a terminal output device (1) that can timely transmit information with a high attitude device information detecting device, wherein a display module (11) used for timely displaying the timely information and a measuring module (12) used for measuring the value of the high attitude device are set inside the terminal output device (1); the high attitude device information processing system also comprises a comparing module (13) for comparing the differences between the timely information and the pre-stored information; and the measuring module (12) and the comparing module (13) are connected to the display module (11). By adopting the high attitude device information processing system, the problem that the information checked by the high attitude device can't be effectively used is solved.

The invention relates to a riser removing hammer test device. The riser removing hammer test device comprises a base. A plurality of cross beams and longitudinal beams are welded together to form the base. The riser removing hammer test device is characterized in that the riser removing hammer test device further comprises two sample sleeves welded to the cross beams of the base; the sample sleeves and the cross beams are welded together through three pairs of horizontally-arranged clamping boards which are distributed at the outer sides of the sample sleeves from top to bottom; the clamping boards are provided with arc-shaped grooves which are shaped to match the outer walls of the sample sleeves; the upper planes of the sample sleeves are flush with the upper plane of the base; an adjustment sheath is arranged in one of the sample sleeves; the outer diameter of the adjustment sheath is consistent with the inner diameter of the sample sleeve; the inner diameter of the adjustment sheath is consistent with the diameter of a destroying sample; and pin holes are formed in the sample sleeves and the adjustment sheath respectively.

The invention relates to a device for observing overpressure of a mooring rope for constructional engineering, belongs to the field of buildings, and particularly relates to a mooring rope protector for a building. The mooring rope protector for the building comprises a shell, a first connecting piece, a second connecting piece and a snapping piece, wherein the first connecting piece is connected with the second connecting piece through the snapping piece; the shell sleeves the outsides of the first connecting piece, the second connecting piece and the snapping piece; and after the snapping piece is snapped off, the shell bears a tensile force between the first connecting piece and the second connecting piece. By the design of the snapping piece which can be snapped off, use safety of the mooring rope can be guaranteed effectively, before the tensile force reaches a rated snapping-off force of the mooring rope, the snapping piece is snapped off at first, then whether the mooring rope is used in an overload manner can be observed effectively, and the protective feature of the mooring rope is improved. By the design of a weak link arranged on the mooring rope, whether the mooring rope is in an overpressure state or not when used can be judged, and therefore, the service life of the mooring rope in a using process can be judged.

The invention discloses a filtering device with automatic detection structure, which comprises a filter cylinder provided with an opening end, a filter cylinder cover that is matched with the liquid in a sealing way, and a filter core arranged in the filter cylinder, wherein the filter core, the filter cylinder cover and the filter cylinder are matched with each other to form a water inlet chamber and a filtering chamber; the filter cylinder cover is provided with a water inlet hole communicated with the water inlet chamber, and a water outlet hole communicated with the filtering chamber; thetop of the filter cylinder cover is provided with a first plunger piston cavity communicated with the water inlet chamber, and a second plunger piston cavity communicated with the filtering chamber; the first plunger piston cavity is sealed by liquid and is assembled with a first plunger piston capable of moving up and down, and the second plunger piston cavity is correspondingly assembled with asecond plunger piston; and the first plunger piston and the second plunger piston are touched and matched with a lever taking a rotating shaft as a supporting point, and can drive the lever to trigger a microswitch for converting a pressure signal into an alarm signal. The invention can be used for detecting the working state of the filter core in real time and accurately judging the blocking situation of the filter core, and has the characteristics of stable working performance, simple structure, sensitive action and the like.

The invention discloses an automatic repairing device for wooden furniture in the field of furniture processing, the automatic wooden furniture repairing device comprises a workbench located on the lower portion and a repairing box located on the upper portion, the interior of the repairing box comprises an upper transmission chamber and a lower ejection chamber, the upper transmission chamber comprises a vertical rotating shaft, and the surface of the rotating shaft is sleeved with a cylindrical cam; the cylindrical cam makes contact with a first rack in the rotating process, the first rack is meshed with a circular gear, one end of the circular gear is meshed with the first rack, the other end of the circular gear is meshed with a second rack, a disc cam is meshed with the lower portion of the second rack, and the disc cam makes contact with an ejection set in the rotating stroke. According to the technical scheme, reciprocating type contact pressing is adopted, the pressing process is divided into pressing, re-pressing and withdrawing, burrs generated by repairing are subjected to leveling treatment in the re-pressing process, meanwhile, rotation is conducted in the re-pressing process, and redundant paint faces or glue faces are scraped off.

The invention discloses a method for detecting critical failure of a battery. The detection method is as follows: Step 1: battery traceability. Before assembling the battery in a UPS, trace its manufacturer, production time, battery performance parameters and battery performance parameters through a battery two-dimensional code. The service life, store these data in the memory, step 2: install the detection memory, single-chip microcomputer and alarm, install the memory, single-chip microcomputer, alarm and wireless communication module in the UPS respectively, use it synchronously with the battery, and the single-chip microcomputer passes through The wireless communication module is connected with the CPU controller inside the UPS and the remote device. Step 3: Install current and voltage sensors and coulomb counters. The present invention monitors the battery surrounding temperature, dust concentration, charging and discharging current and voltage, battery capacity and charging time in real time, traces the source of the battery, understands its basic data, and infers the battery failure time according to the data and the detection data, and timely Repair and replace batteries.

A PEMFC bipolar plate life testing device and method, the device includes a bipolar plate, a flow field on the pole plate, a cover plate, a bottom plate, a microporous filter membrane, a flexible counter electrode, a heating film, a gas supply device, and a simulated PEMFC environmental cycle Liquid supply device; gas channels are provided at the fluid inlet and outlet positions of the pole plate; various fluid measuring instruments are installed on the gas supply device, and the liquid supply device includes a peristaltic pump and a flow meter. When in use, cover the test flow field of the bipolar plate with a microporous filter membrane and a flexible counter electrode, cover the back with a heating film, and fix it between the cover plate and the bottom plate; After reaching the corresponding potential, it will run for a long time, and the use of the bipolar plate can be judged by detecting the ion concentration in the circulating solution. The device solves the problem that the service life of the metal bipolar plate cannot be independently evaluated, and its testing method and evaluation means are simple and practical, and can accurately judge the service life of the bipolar plate, and is suitable for widespread promotion in the life test of the metal bipolar plate.