30results about How to "Realize the test" patented technology

The invention discloses a reinforcing steel bar and concrete pull-out testing device capable of eliminating high-temperature influences, and belongs to the technical field of testing devices. The reinforcing steel bar and concrete pull-out testing device comprises an upper pull-out frame, a lower pull-out frame, an anchorage device, a slip measuring assembly and a force measuring assembly. By the combination effect of the upper pull-out frame and the slip measuring assembly, the force measuring assembly and a high-temperature test piece are separated and achieve testing, and therefore the phenomena that a test instrument is damaged by the temperature and reinforcing steel bar bonding power and slip value measurement is disturbed are avoided. The testing device is simple and controllable in machining and manufacturing, assembling and installing are convenient, a force transfer mechanism is clear, the testing device is applicable to reinforcing steel bar-concrete center pull-out tests, the bonding strength and relative slippage between reinforcing steel bars and concrete are measured, and the reinforcing steel bar-concrete bonding slippage performance can be effectively tested under high temperature.

The invention relates to a wind tunnel test model for an aerodynamic braking device, which comprises a simulation car roof, a wind deflector, a braking wind wing, angle adjusting connecting rods and a connection switch device, wherein the wind deflector is arranged above the simulation car roof; the braking wind wing is arranged in the middle of the wind deflector and mounted on the connection switch device; one end of each angle adjusting connecting rod is connected with the connection switch device, and the other end is connected with the braking wind wing; the opening angle of the braking wind wing can be adjusted through the angle adjusting connecting rods; and through the adjustment of the connection switch device, the bearing force and moment of the braking wind wing are measured separately, or the whole bearing force and moment of the braking wind wing and the wind deflector are measured simultaneously. Compared with the prior art, according to the multifunctional aerodynamic braking wind tunnel test model used for aerodynamic braking test research, wind tunnel test verification research can be performed on the aerodynamic force and the fluid field of the aerodynamic braking device from multiple angles, and the wind tunnel test model has the advantages of accuracy in analyzing the aerodynamic braking device, multiple functions and the like.

The invention discloses a reactor protection system two-out-of-three conforming maintenance bypass system, comprising a reactor protection system and a 2 / 3 conforming logic bypass unit, wherein the 2 / 3 conforming logic bypass unit comprises a rotary switch S which is provided with four gear contactors and also comprises twelve relays which are all normally open relays. Every four relays of the twelve relays are seen as one group; input ends of input circuits of the four relays of the first group are all connected to first gear contactors, input ends of input circuits of the four relays of the second group are all connected to second gear contactors, and input ends of input circuits of the four relays of the third group are all connected to third gear contactors. According to the system, a bypass device is arranged between a safety monitoring device and a safety logic device so that the protection system maintenance bypass function is added. Device on-line maintenance and test can be achieved; non-planned reactor shutdown probability due to device fault is reduced; the performability of reactors is increased; and production efficiency is guaranteed.

The invention relates to a multidirectional full-automatic three-dimensional impact testing machine for a for low-voltage metering meter box; the multidirectional full-automatic three-dimensional impact testing machine comprises a frame seat and a rotating body; the rotating body is slidingly connected on the frame seat; the frame seat is provided with an upper and lower lifting assembly; the upper and lower lifting assembly is provided with a horizontal sliding assembly; the horizontal sliding assembly is provided with a hose or a steel pipe, the bottom end of the hose or the steel pipe is provided with a hammer head, the horizontal sliding assembly is provided with a suction plate, and the hammer head is provided with an electromagnet. The multidirectional full-automatic three-dimensional impact testing machine has the advantages that the suction plate is triggered to suck the electromagnet through energizing the electromagnet, the hammer head is controlled to lift up, the electromagnet is divorced from the suction plate through power failure of the electromagnet, the hammer head triggered to lift up is thrown out to impact the low-voltage metering meter box, the hammer head after impacting can improve the energization of the electromagnet to rapidly recover onto the suction plate, the low-voltage metering meter box can bear same impact force during each time of impact, the accuracy of the test number is ensured, and the efficiency of the tests is improved.

The invention discloses an energy-saving type hydraulic pump durability testing table with hydraulic analog loading. The energy-saving type hydraulic pump durability testing table is composed of a power guide module, a power output module, a cooling module, a rectifier bridge way, a loading module, an energy recovery module and an oil tank. According to the energy-saving type hydraulic pump durability testing table, energy is stored in an energy accumulator of the power guide module, and therefore the energy-saving function is achieved. According to the energy-saving type hydraulic pump durability testing table, a variable displacement motor output shaft of the loading module is coaxial with a second shaft and an overrunning coupler of the energy recovery module, a hydraulic pump is driven to rotate, and energy recovery is achieved. Hydraulic analog loading of the energy-saving type hydraulic pump durability testing table is achieved by adjusting the system pressure, and the hydraulic pump durability test rated conditions can be met. The energy-saving type hydraulic pump durability testing table can be used for testing hydraulic pumps in multiple specifications under the condition that the modules are kept unchanged.

The invention discloses an anti-scouring testing device for a road pavement material. The anti-scouring testing device for the road pavement material comprises a squeezing mechanism, a tray mechanism, a box body, a driving mechanism and a bracket, wherein the box body is arranged in the bracket; the tray mechanism is connected with the bracket by virtue of the box body; the squeezing mechanism is arranged at the upper part of the bracket; the squeezing mechanism is connected with the driving mechanism. By virtue of the anti-scouring testing device for the road pavement material, a drive rod is continuously pressed by a cam, so that a spring is continuously compressed and elastic force is continuously released for squeezing a roadbed; as a plurality of holes and grooves are formed in a rubber plate, the rubber plate can simulate a wheel for continuously squeezing the roadbed material; constant-pressure can be generated under the action of a pressure adjusting spring; water flow is generated in the gap of the roadbed material during squeezing and used for scouring the roadbed material; the squeezing time is controlled by a controller; tens of thousands of times of squeezing in the true environment are simulated in a short time; the damage of the roadbed material is observed after testing is finished; the roadbed material with an optimum process ratio is obtained by virtue of a comparison test; the anti-scouring testing device for the road pavement material is worthy of being popularized and applied.

The invention discloses a comparative automatic wheel tracking tester. The comparative automatic wheel tracking tester comprises a rack, testing vehicles arranged in the rack and a driving device for driving the testing vehicles to move back and forth, wherein at least two testing vehicles are arranged; an object storage platform is further arranged at a part, located below the testing vehicles, of the rack; the object storage platform is detachably connected with a plurality of positioning plates; the two positioning plates form a fixing groove for fixing a concrete test piece. The comparative automatic wheel tracking tester has the advantages and effects that the plurality of testing vehicles are arranged at the upper end of the rack; meanwhile, the object storage platform arranged below the rack can be used for fixing the concrete test pieces with different sizes and the tester can be used for carrying out tests on the concrete test pieces with different types at the same time and carrying out different pressure tests on the whole concrete test piece, so that detection effects, generated under different environments, different types and different pressure, on the concrete test pieces can be more rapidly and directly compared.

The invention relates to an SOFC tail gas utilization research experiment system which comprises a gas supply device, a heating device, a combustion device and a measurement device which are connectedin sequence. The gas supply device is used for generating compressed air and SOFC tail gas with different component contents; the heating device is used for heating the compressed air and the SOFC tail gas; the combustion device is used for mixing the SOFC tail gas and compressed air and carrying out combustion reaction; the measurement device is used for measuring technological parameters in theSOFC tail gas combustion reaction process. Compared with the prior art, different working conditions of an SOFC stack can be simulated, and the system has the advantages that parameters are easy to adjust, control is accurate, and SOFC tail gas components can be efficiently configured.

The invention discloses a driving shaft system rack test device and method for an automobile. The driving shaft system rack test device includes a base, a temperature sensor, a control console, a driving motor mechanism and a load motor mechanism.The driving motor mechanism and the load motor mechanism are each provided with an upper shaft clamp and a lower shaft clamp, and a counter shaft is connected between the two upper shaft clamps , wherein cardan joints are arranged at the two ends of the counter shaft,a Y-direction force sensor and a torque sensor are arranged on the two lower shaft clamps of the the driving motor mechanism and the load motor mechanism correspondingly;a rotation mechanism, an X-direction prismatic pair and a Y-direction prismatic pair are sequentially arranged at the bottom of the driving motor mechanism from top to bottom; and the bottom part of the load motor mechanism is successively top-to-bottom provided with an X-direction prismatic pair and a Y-directionprismatic pair. According to the driving shaft system rack test device and method for the automobile, simulation experiments of multiple driving shaft performance parameters can be realized efficiently and accurately, experimental time and costs are saved, and effective technical support is provided for design development and performance experiments of automobile constant-speed driving shafts, especially for NVH performance verification.

The invention relates to a flap valve magnetic closing performance test device and a test method. The device comprises a valve seat fixing mechanism used for fixing a valve seat, a core barrel driving mechanism used for driving a core barrel to ascend and descend, a first magnetic part used for providing initial closing power for a valve clack, and a magnet linear displacement adjusting mechanism connected with the first magnetic part and used for adjusting the distance between the first magnetic part and the valve seat. A spring for providing initial closing power for the valve clack is replaced with a magnet, repulsive force generated by repulsion of the magnet is far larger than elastic force generated by the spring, and when a drilling machine horizontally drills or vertically drills upwards, elastic potential energy of the spring is not enough to provide enough energy, so that the valve clack overcomes friction force or gravity to rotate and close; and due to the fact that the valve clack is limited by the core barrel, energy generated by magnetic potential energy is accumulated and then is thoroughly converted into kinetic energy of the valve clack after the limitation of the core barrel is lost, the valve clack obtains large kinetic energy, and therefore it is guaranteed that the valve clack overcomes gravity or friction force to be rapidly closed, and rollover is prevented.

The invention relates to a rotary experiment platform and a flap valve closing performance testing device, and the platform comprises a platform which comprises a first pedestal, a second pedestal, a first rotation driving mechanism, and a second rotation driving mechanism. The first rotation driving mechanism is connected with the first base and used for driving the first base and the second base to rotate in the first direction. The second base is rotationally connected with the first base, and the second rotation driving mechanism is connected with the second base and used for driving the second base to rotate relative to the first base in the second direction; and the second direction is perpendicular to the first direction. The inclination of the platform can be adjusted, and the closing conditions of the flap valve in different drilling directions can be tested; and the second base can rotate relative to the first base, so that the valve clack and the valve seat integrally rotate around the valve seat in the axial direction, and tests of the valve clack at different inclination angles and different placement positions can be achieved under the combined action of the first base and the second base.

A non-casting steel wire rope tensile test clamping device is composed of a rack, a front clamping device, a moving cross beam, a force measuring device, clamping piece bases, clamping pieces and a rear clamping device. The front clamping device and the rear clamping device are arranged on the rack and are provided with the clamping piece bases and the clamping pieces; the rack is provided with the moving cross beam and the force measuring device. A hydraulic clamping mode and a hydraulic loosening mode are adopted for the clamping devices, clamping force is 5-15 Mpa, openings of the clamping pieces are in the shape of V, inclined lines staggering at 60 degrees are arranged on the surfaces of the clamping pieces, a small-inclination chamfer angle larger than 20 mm is formed at the tail end of each clamping piece, it is guaranteed that a steel wire rope is not damaged in a clamping mode, slippage is also avoided, the clamping piece bases are assembled on a clamping plate according to 15-degree wedge angles, friction between the clamping piece bases and the clamping plate is reduced, clamping is reliable, self-locking is prevented, and replacement of the clamping pieces is facilitated.

The invention relates to a rotary cylinder model test device which comprises a supporting tower. A cylinder rotatably sleeves the circumferential outer side of the supporting tower; a driver is fixedly installed in the supporting tower, a runner is installed at the output end of the driver, and the circumferential edge of the runner extends out of the supporting tower and is attached to the innerwall face of the cylinder. A rotating shaft is rotatably arranged on the upper part of the supporting tower, the upper end of the rotating shaft extends upwards out of the supporting tower, and a rotating disc is installed at the end of the upper end of the rotating shaft and fixedly installed on the inner wall face of the cylinder in the circumferential direction; a force balance is mounted on the bottom surface of the supporting tower; during use, the test device is installed on the wind tunnel test ground through the force balance; a short cylinder is installed above the cylinder through afastener to obtain a rotating cylinder with a preset length-diameter ratio, a driver drives a rotating wheel to rotate, the rotating wheel drives the cylinder attached to the rotating wheel to rotatethrough circumferential surface friction force, the rotary cylinder integrally rotates, and therefore rotating torque is measured through a torquemeter, and lifting resistance is measured through a force balance. The device is used for a rotary cylinder model test, rotation is reliable and stable, and the test effect is powerfully guaranteed.

The invention discloses a comparative automatic wheel tracking tester. The comparative automatic wheel tracking tester comprises a rack, testing vehicles arranged in the rack and a driving device for driving the testing vehicles to move back and forth, wherein at least two testing vehicles are arranged; an object storage platform is further arranged at a part, located below the testing vehicles, of the rack; the object storage platform is detachably connected with a plurality of positioning plates; the two positioning plates form a fixing groove for fixing a concrete test piece. The comparative automatic wheel tracking tester has the advantages and effects that the plurality of testing vehicles are arranged at the upper end of the rack; meanwhile, the object storage platform arranged below the rack can be used for fixing the concrete test pieces with different sizes and the tester can be used for carrying out tests on the concrete test pieces with different types at the same time and carrying out different pressure tests on the whole concrete test piece, so that detection effects, generated under different environments, different types and different pressure, on the concrete test pieces can be more rapidly and directly compared.

The invention discloses a concrete permeation detecting device. The device comprises an extruding mechanism, a tray mechanism, a box, a drive mechanism, a support and a partition, wherein the box is arranged in the support, the tray mechanism is connected with the support through the box, and the extruding mechanism is arranged at the upper part of the support and connected with the drive mechanism; the partition is arranged in the middle of the box, and a water collecting module is arranged at the lower part of the partition. Water flow is generated in a gap of a roadbed material during extrusion and washes the roadbed material, the extruding time is controlled through a controller, tens of thousands of extrusion in the true environment are simulated in very short time, the amount of permeated water is observed after a test ends, the most real permeation information is acquired, and the phenomenon of data inaccuracy due to natural permeation is avoided. The concrete permeation detecting device is simple in structure, simple and convenient to operate and worth popularization and application.

The invention is applicable to the technical field of rail transit, and provides a rail transit auxiliary power supply test device, which comprises a transfer box and further comprises a connecting mechanism, the connecting mechanism comprises a driving part, a rotating module, a sliding seat, a sliding part, a fixed seat, a rotating seat, a rotating part and a steering part, and one end of the sliding part is provided with a contact; and the switching mechanism comprises a connecting shaft, a transmission module, a transmission shaft, a first rotating disc, a second rotating disc, a rotating shaft and a rotating belt, and the transmission belt is provided with a plurality of wiring mechanisms used for electrically connecting the contact and the load module. According to the rail transit auxiliary power source test device, the auxiliary power source is electrically connected with the contact through the wiring mechanism, the contact is electrically connected with the wiring mechanism installed on the transmission belt through the connecting mechanism, the contact is electrically connected with different load modules, and then the auxiliary power source is electrically connected with the different load modules. The working efficiency of the test device is improved, and the safety of the device is improved.

The invention relates to a bionic underwater vehicle swing propulsion performance integrated test platform comprising a bionic fish oscillator used for simulating a tested bionic underwater vehicle; the power driving system is used for driving the bionic oscillator to swing in the water tank; the high-speed imaging system is used for acquiring a swinging form image of the bionic oscillator in the water tank; the PIV speed measuring instrument is used for acquiring the speed of a fluid flow field in the water tank under the swinging action of the bionic swinging device in real time; the data measurement system monitors the noise radiation characteristics of the bionic oscillator in the motion state in real time and monitors the dependent variable of the connecting rod in the motion state of the bionic oscillator in real time; the information control system is used for sending a synchronous trigger signal to the power driving system, the high-speed imaging system and the data measurement system and uniformly controlling the working states of the bionic swinging system, the high-speed imaging system and the data measurement system; and the information processing system is used for evaluating the comprehensive performance of the bionic swinging propeller by integrating the swinging frequency, the swinging amplitude, the noise, the stress and the speed of the bionic swinging device.

The invention discloses an electromechanical integrated management system test verification platform with load power simulation, which comprises a test station operation table, an electromechanical system equipment rack, a power supply system, a tested finished product of an electromechanical system, an electromechanical system simulation system, a load simulation device, a test data acquisition, monitoring and analysis system, a configuration switching device, a test cable, a tested finished product of an electromechanical integrated management system, an avionics simulation and display system and a test control and automatic test system. The tested finished product of the electromechanical integrated management system and the tested finished product of the electromechanical system are installed on the electromechanical system equipment rack. Control computers of the power supply system, the electromechanical system simulation system, the load simulation device, the test data acquisition, monitoring and analysis system, the configuration switching device, the avionics simulation and display system and the test control and automatic test system are all placed on the test station operation table and are all connected through test cables. The platform has the advantages of flexible configuration and comprehensive test.

The invention belongs to the technical field of diaphragm pump experimental devices and particularly relates to a diaphragm stroke experimental device and method. The diaphragm stroke experimental device and method are convenient to use, improve production efficiency and lower production cost. The diaphragm stroke experimental device comprises a cavity and is characterized in that one side of the cavity is provided with an opening, and a support is arranged in the cavity and corresponds to the opening; the upper portion of the cavity is provided with a liquid filling port, and the lateral side of the liquid filing port is provided with an overflow port; a supporting frame is arranged outside the opening, a threaded rod stretching into the opening is arranged on the supporting frame, and the threaded rod is fixed to the supporting frame through a first locating nut in the supporting frame and a second locating nut outside the supporting frame.

The invention belongs to the field of aviation special equipment testing, particularly relates to a two-wire detector of an intercom system. The two-wire detector comprises a two-wire detector device, 28 V direct-current power supply, a low-frequency signal simulator, a digital multimeter, a digital millivolt meter and a low-impedance headphone. The low-frequency signal simulator and the digital multimeter are connected with the two-wire detector device respectively. The digital millivolt meter is connected with the digital millivolt meter two-wire detector device and the low-frequency signal simulator respectively. The low-impedance headphone is connected with the two-wire detector device and the digital multimeter respectively. The two-wire detector is strong in versatility; by the aid of the two-wire detector, intercom signal detection can be realized, crosslinking tests of the two-wire detector with ultrashort wave and shortwave radio can be performed; the two-wire detector can be used for detecting functions of collision warning tone, autopilot warning tone, centralized warning tone, ground proximity warning tone, DME (distance measuring equipment) warning tone and decision height warning; and the two-wire detector can be used for detecting performance of hotline communication of airborne tasks, stimulating working states of the intercom system on a plane and detecting intercom performances of an entire set of intercom system, and can realize tests on various models of intercom systems.

The invention discloses a reactor protection system with one out of two conforming maintenance bypass devices, including a reactor protection system including a 2 / 3 logical bypass unit, and a 2 / 3 logical bypass unit including a rotary switch S with four gear contacts , 2 / 3 logic bypass unit also includes 12 relays, 12 relays are normally open relays, every 4 of the 12 relays is a group, the input terminals of the input circuit of the first group of 4 relays are connected To the 1st gear contact, the input ends of the input circuits of the 4 relays in the second group are all connected to the 2nd gear contact, and the input ends of the input circuits of the 4 relays in the third group are all connected to the 3rd gear contact. By setting the bypass device between the safety monitoring device and the safety logic device, the maintenance bypass function of the protection system is increased. Realize online maintenance and testing of equipment, reduce the probability of unplanned shutdown due to equipment failure, improve the operability of the reactor, and ensure production efficiency.

The invention relates to a wide-temperature-range multi-model bearing loading test platform which comprises a workbench, a bearing rotating device, a bearing inner ring fixing device, a bearing outer ring fixing device, a bearing system propelling device and a temperature adjusting device. The bearing propelling device and the bearing rotating device are fixed on the working table, the bearing propelling device is connected with the bearing inner ring fixing device through a hydraulic cylinder, and the bearing propelling device adopts a hydraulic cylinder axial propelling mode to realize axial movement and loading. Through the application of liquid nitrogen and the thermal resistance wire, the working condition of a wide temperature field is realized, simultaneous axial and radial loading is realized through the inner and outer ring fixing device, and the test of different types of bearings is realized by utilizing the telescopic structure of the disc piezoelectric ceramic.

The invention relates to an electronic product environment test system with a sample protection function. The system comprises a direct-current power supply (1), a sample protection device (2) and anenvironment test box (3); the sample protection device (2) is connected with a direct-current power supply (1) and a sample (4) arranged in the environment test box (3); the sample protection device (2) comprises a direct-current power supply input terminal, a voltage-limiting and current-limiting unit and a power supply output terminal which are connected in sequence, wherein the direct-current power supply input terminal is connected with the direct-current power supply (1), and the power supply output terminal is connected with the sample (4). Compared with the prior art, the device has theadvantages of being capable of protecting a sample in an environmental test and the like.