133 results about "Endurance testing" patented technology

The invention discloses an anti-adhesive shoulder fixture for improving the efficiency of an endurance test, which aims to provide a novel test fixture structure to improve the efficiency of the endurance test, prevent the adhesion and the tripping between a specimen and a fixture and between the fixture and a pull rod of a testing machine, and ensure the authenticity and the reliability of the test. The technical scheme of the anti-adhesive shoulder fixture has the following key points that: the fixture adopts a shoulder type structure to prevent the adhesion and the tripping between the specimen and the fixture and the adhesion and the tripping between the fixture and the pull rod of the testing machine; a shoulder type serial connector is designed, and two specimens are connected in series and are synchronously tested on one testing machine so as to improve test efficiency; a shoulder large pull head adopts K002 high-temperature alloy, and the shoulder fixture and the shoulder type serial connector adopt directional high-temperature alloy DZ22 or single crystal high-temperature alloy DD3 to improve the applicable test temperature of the fixture to 1200 DEG C; and the fixture has simple operation and quick and convenient clamping, ensures the concentricity, and is applicable to different models of endurance testing machines produced by different testing machine manufacturers.

The invention relates to a miniature circuit breaker electric endurance testing system and method. The miniature circuit breaker electric endurance testing system mainly comprises an alternating-current output power source, a direct-current output power source, an alternating-current load, a direct-current load, a voltage and current sensor and an industrial personal computer, wherein the industrial personal computer can send commands to the alternating-current power source, the direct-current power source, the alternating-current load and the direct-current load through buses; the alternating-current power source and the direct-current power source can automatically set output voltage of a main circuit to a miniature circuit breaker according to the commands; the alternating-current load and the direct-current load can be automatically matched with circuit impedance to determine testing main circuit current required by testing the miniature circuit breaker; the industrial personal computer sends a command to a motor driving device to control a manipulator of the motor to circularly switch on and off the tested miniature circuit breaker; the voltage sensor can collect voltage between a movable contact and a fixed contact of the miniature circuit breaker and send the voltage to the industrial personal computer to be analyzed and processed; thus, automatic testing of breaker electric endurance is achieved. The testing method is convenient, further improves reliability and accuracy for judging testing results, greatly improves work efficiency and reduces labor cost.

The invention discloses an endurance test bed for a lock cylinder of a vehicle door. The mechanical part of the endurance test bed comprise a test bed body, a lock cylinder fixed seat, a lock cylinder key fixed block; the lock cylinder is fixed on the lock cylinder fixed seat by a lock cylinder fixture block, a key in-out cylinder is provided, and the lock cylinder key is fixed on a piston rod of the key in-out cylinder, the two sides of the lock cylinder key fixed block are respectively provided with a key rotating connecting block which protrudes outwards, and two key rotating cylinders are provided to push the two key rotating connecting blocks respectively so as to drive the lock cylinder key to make rotary motion in two directions. The technical proposal helps realize the endurance performance test of the lock cylinder of the vehicle door by high-precision pneumatic components in conjunction with programmable control of a PLC controller. The test bed has simple operation, time saving property, low labor intensity, good versatility and high economic benefit; and the test conditions can be set as required, and the obtained test data are accurate and truly reflect the endurance performance of the lock cylinder in service use.

The invention relates to a coat rolling contact endurance testing machine, which comprises a tester, a loading mechanism, a driving mechanism, a lubrication system, and an information acquisition and control system. The coat rolling contact endurance testing machine has a simple structure, convenient operation and high reliability; in addition, because the testing machine is provided with a plurality of rolling elements, the testing machine has a plurality of contact points and can realize a high efficient test; besides; and through detecting vibration signals and monitoring the surface condition of the coat or a fraction pair, when micro-cracks are generated, the testing machine can pause the test and save the failure moment.

The embodiment of the invention discloses a remote-control key endurance testing device which relates to the field of automobile accessory testing apparatus and is used for solving the problem of lower testing result accuracy caused by the fact that the pressing in-place degree in the traditional remote-control key endurance test is hard to determine. According to the embodiment of the invention, due to the fact that a push rod is movably connected to a limiting bracket main body by a connecting shaft and the push rod can rotate along the connecting shaft under the drive of a driving device, and meanwhile, due to the fact that a limiting bolt is arranged in a bolt hole of a second part of the push rod, when a remote-control key is in a pressed state, the tail part of the limiting bolt supports against a protruding part of the limiting bracket to limit the downward rotating displacement of the push rod, in this way, the depth of a pressure pillar which downwardly presses a key to be tested under the drive of the push rod is determined accurately, so that the pressing in-place degree of the key to be tested can be determined easily, and the higher accuracy of a remote-control key endurance test result can be ensured. The embodiment of the invention is mainly used for the automobile accessory testing apparatus.

The invention discloses an adjustable-assembly parameter endurance testing device for electromagnetic relays and relates to an endurance testing device for the electromagnetic relays. The invention solves the problem that it is impossible to research the influences of the traditional endurance testing device for the electromagnetic relays on the matching relationship between an electromagnetic attraction force and a mechanical counter force and on the electrical endurance by changing an assembly parameter. Adjusting blocks are arranged on a first screw by threaded connection; the lower end of a vertical adjusting device is fixedly arranged on upper end faces of two vertical plates and is positioned on the same side of the two vertical plates; two fixing blocks are symmetrically arranged on the front side wall of the vertical adjusting device; two sensor supports are symmetrically fixed on the front side wall of the vertical adjusting device and are positioned between the two fixing blocks; and two pressure sensors are positioned on the two sensor supports and are in sliding connection with the sensor supports respectively. The device makes it is possible to research the influences of the device on the matching relationship between the electromagnetic attraction force and the mechanical counter force by changing the assembly parameter and on the electrical endurance of the electromagnetic relays.

An electronic test structure and method for testing non-volatile memory cells. The structure includes a first transistor coupled in series to a floating gate transistor whereby a source of the first transistor is coupled to a positive power supply voltage and a source of the floating gate transistor is coupled to a power supply ground. A gate of the first transistor is further coupled to a source of the first transistor. A second transistor is coupled in series with a memory cell with a source of the second transistor coupled to a positive power supply voltage and a gate of the second transistor is coupled to the drain of the first transistor.

The present invention provides an ultraviolet-curable composition having satisfactory protective performance even in endurance testing at high temperature and high humidity in an optical recording medium having for its reflective film Ag or a metal and/or alloy having Ag for its main component, and an optical recording medium in which it is applied. A cured film of an ultraviolet-curable composition, for which the pH value of a 1 wt % methanol solution of said ultraviolet-curable composition is within the range of 4.5 to 6.8, is coated onto a reflective film in the form of a protective film.

The invention relates to an endurance testing machine for wheel bearings, and provides a testing machine capable of testing the endurance of a wheel bearing by simulating the real entrucking conditions of the wheel bearing. The endurance testing machine comprises a working platform, and a driving system and a hydraulic loading system installed on the working platform, wherein the driving system comprises a motor, a main shaft driven by the motor, a main shaft flange fixed on the end portion of the main shaft and a bi-flange connection disc connected with the main shaft flange, and the hydraulic loading system comprises an L-shaped loading device, an axial loading mechanism, a radial loading mechanism and a loading device position adjusting mechanism. The L-shaped loading device comprises two parallel L-shaped loading plates, of which the upper ends are connected with a tool rack with a test piece connecting flange, and lower ends are connected with a bi-lug loading base. The bi-lug loading base is connected with the axial loading mechanism and the radial loading mechanism, and the axial loading mechanism and the radial loading mechanism are installed on the loading device position adjusting mechanism.

The invention relates to a group cardiovascular endurance testing and personalized training device and method based on pressure-sensing steps. The device comprises a pressure-sensing step device, a wireless heart rate monitoring device, a service platform and a wireless audio transmission device. The pressure-sensing step device is formed by a step device and a pressure sensor. The pressure sensorcollects users' pressure distribution data signals of walking up and down the steps in testing or training, pressure distribution statistical data is obtained through statistics, and the pressure distribution statistical data is wirelessly uploaded to a service platform. The wireless heart rate monitoring device collects and uploads real-time heart rate data of users in the testing or training. The service platform collects and stores basic information of the users, receives the data uploaded by the wireless heart rate monitoring device and the pressure-sensing step device, carries out cardiovascular endurance assessment according to uploaded data and gives a training guide plan, the training guide plan comprises a beat frequency and a training time, and the beat frequency is then converted into beat audio. The wireless audio transmission device receives the beat audio, and the beat audio is outputted to the users to guide the user training.

An endurance testing apparatus, which is for performing an endurance test of a contacting/separating portion in which a first member and a second member repeats contacting with and separating from each other, has a contact load generator and a testing medium fluid supply means. The contact load generator reciprocates the second member relative to the first member to generate a contact load acting between the first member and the second member repeatedly. The testing medium fluid supply means supplies a testing medium fluid to the contacting/separating portion to expose the first member and the second member to the testing medium fluid.

A content processing device is configured to selectively receive a media signal from a media signal provider. A distribution device is configured to selectively receive a media signal from the content processing device, and to selectively provide one or more command signals to the content processing device. A computer is configured to selectively receive the media signal from the distribution device, and to selectively provide commands to the distribution device. The distribution device is further configured to provide the received one or more commands to the content processing device via the one or more command signals.

The invention discloses a rowing machine-based cardiorespiratory endurance testing method, and is applicable to cardiorespiratory exercise capacity testing in nationwide fitness programs. More specifically, a testing system consisting of a rowing machine body, a testing analysis platform, a pull data acqusition module and a heart rate acqusition module is utilized to guide a subject to finish two groups of stable continuous pull actions with same pull resistance and pull frequency and different pull powers in a set time so as to monitor heart rate response of the subject in real time, establish a linear model between the stage movement heart rate and the pull power and calculate the pull power corresponding to the highest heart rate of the subject to serve as an evaluation index of the cardiorespiratory endurance. Whole-course real-time guide is realized by using sound, light and video signals, the exercise limit is not required to be reached, the method is suitable for a broader crowd of people and is safer, the testing result can objectively reflect the weakness of the cardiorespiratory endurance, a personalized and differentiated fitness plan can be made for the subjects, the exercise effect is improved and scientific guidance is provided.

The invention provides a testing device for endurance of closing and opening of an external unlocking door of an automobile sliding door, belonging to the endurance testing device field. The invention comprises a testing stand rack, a power device fixed on the testing stand rack, a control system, a sliding device, and an external unlocking door-opening device. The testing stand rack is used for fixing a testing vehicle; the external unlocking door-opening device is fixed on the sliding device; the power device is connected to the sliding device; the control system is used for controlling the power device to provide power and controlling the external unlocking device to unlock. The beneficial effects of the invention are that: the structure is simple, reliable and practical, the integral vehicle test is fully realized and the accuracy of the test data is guaranteed without disassembling and damaging the parts on the test vehicles, the invention is applicable to various types of the vehicles and stable in performance and reliable in test data accuracy, the operation is simple and maintenance is easy, and the invention will not damage the test sample vehicle and reduces the test cost.

The invention provides a built-in endurance test system, an aging test device and a corresponding endurance test method. The built-in endurance test system comprises a power supply end, a grounding end, a clock end and an output end; the built-in endurance test system is started through the power supply end, the grounding end and the clock end, and carries out the endurance test to a chip and outputs the endurance test results through the output end; the aging test device comprises a whole machine test plate, at least a group of chips, the built-in endurance test system, a decoder and terminal test equipment, wherein the chips are arranged on the whole machine test plate; the built-in endurance testing system is integrated in each chip; the decoder is used for receiving the endurance test results output by the built-in endurance test system; the terminal test equipment is used for determining the chips which can not realize the endurance test according to the decoding results output by the decoder, so as to solve the problems that the sample quantity is less, the endurance test period is long, whether the reading kinetic energy of a chip sample is invalid or not can not be judged automatically, and the test cost is expensive during endurance test of each batch chips.

The invention provides a DCT finished vehicle gearshift cycle endurance testing method, which comprises the steps of: step 1, performing static checking and dynamic evaluation on a DCT transmission ofa finished vehicle before the test; step 2, in the test phase, running the finished vehicle according to a set working condition curve on a chassis dynamometer till a test requirement is met, and recording data in the test process; step 3, and finally performing dynamic evaluation on the DCT transmission of the finished vehicle again, dismantling a transmission box, and checking an internal damage situation. The DCT finished vehicle gearshift cycle endurance testing method aims at the finished vehicle provided with the DCT, performs the static and dynamic evaluation before the test, then runsthe finished vehicle according to the specific cycle curve on the chassis dynamometer till the test requirement is met, and finally performs dynamic evaluation and dismantles the transmission box, soas to achieve the purpose of conducting special item verification on the DCT, thus the DCT is not limited to constraints of road conditions, the DCT can be subjected to rapid special item verification in a targeted manner, and the DCT finished vehicle gearshift cycle endurance testing method has the advantages of low cost, short verification cycle, problem focusing and the like when compared withroad tests.

The invention relates to a fatigue endurance testing device and method for a multi-link rear suspension axle housing assembly. A tire of a multi-link rear suspension assembly is arranged and fixed ona tray on the top of an actuating support member. A left horizontal reaction force seat and a right horizontal reaction force seat are fixed on an iron floor, and upper and lower control arm members are fixed on the horizontal reaction force seats to fix an upper control arm and a lower control arm respectively. Four columns are fixed on the iron floor, wherein spring fixing parts are fixed on twoof the columns, and springs are fixed on the spring fixing parts and are adjusted in height through sliding grooves. Shock absorber fixing parts are fixed on another two columns, and shock absorbersare fixed on the shock absorber fixing parts and are adjusted in height through sliding grooves. The fatigue endurance testing device and method realize durability testing of the shock absorbers, thesprings, the upper and lower control arms and other components and can provide real and reliable experimental data for design and fatigue service life analysis of a multi-link axle housing assembly, thereby reducing the development cycle of the multi-link axle housing assembly, saving cost, etc.

An endurance testing system is configured to test endurance of a first detecting apparatus. The endurance testing system includes a second detecting apparatus, a movement module, a processor, and a storage module. The movement module includes a first inductive object and a second inductive object. The processor is connected to the first and second detecting apparatuses, and the movement module, for controlling the movement module and counting a first number of times the first detecting apparatus detects the first inductive object, and a second number of times the second detecting apparatus detects the second inductive object. The storage module is connected to the processor, for storing the first and second numbers of times from the processor. The first detecting apparatus fails the testing upon the condition that the first number of times is not equal to the second number of times.

The invention provides an endurance testing device for a sliding door positioner. The endurance testing device comprises a test car, an actuator support, an actuator, the positioner, a force sensor, a clamping device and a sliding door, wherein the test car is provided with a sliding rail; the sliding door is provided with a traveling wheel arm; the traveling wheel arm is embedded into the sliding rail and can move in the sliding rail; the positioner is arranged on one end of the sliding rail; the actuator is arranged on the actuator support; the clamping mechanism and the force sensor is arranged on one end of a cylinder rod of the actuator; the clamping mechanism clamps the sliding door. The endurance testing device provided by the invention has the beneficial effects of simple structure, convenience in installation, adjustment and maintenance, and low cost.

The invention discloses a count method for an engine oil atomizer endurance test. The count method comprises the following steps that an acceleration sensor is arranged on an oil atomizer, the oil atomizer is in rigid connection with the acceleration sensor, vibration signals in the start process of the oil atomizer are sensed by the acceleration sensor and transmitted to a control unit of a test system, and the number of times of the vibration signals is monitored and counted so that the atomization processes of the oil atomizer can be counted. A test method can directly and accurately count the number of times of atomization, measurement is accurate, the method is easy to implement, and operation is easy.