9results about How to "Reduce test preparation time" patented technology

This invention relates to the field of glass production testing technology, specifically disclosing a glass cold bending ultimate failure test device and method. The device includes a worktable and four identical cold bending loading units. Each unit integrates a planar displacement structure with horizontal displacement capability, a liftable and directional adjustable support structure, and a pressure head connected by a ball joint. During testing, the planar displacement structure of each unit is first adjusted to accommodate glass specimens of different sizes. Then, the support structures of three units form an L-shaped support surface, and their pressure heads press against corresponding corner points on the upper part of the specimen to establish stable constraints. Finally, the pressure head of the fourth unit applies a concentrated load to the unconstrained corner points, while automatically monitoring the load and displacement until the specimen fails. This invention, through modular and automated design, achieves high versatility of the device, high testing accuracy, and high operational safety, effectively improving testing efficiency and data reliability.

This invention discloses a universal cryogenic valve heat leakage performance testing device and method, belonging to the field of valve testing technology. It includes: a cryogenic valve to be tested installed on the upper end of a cryogenic thermostat; the valve seat of the cryogenic valve to be tested connected to a valve heat exchanger via a pipe clamp; a first cold shield surrounding the valve seat; a valve support including a first flange adapted to different cryogenic valves to be tested; two cold shields installed inside the cryogenic thermostat, both with modular sidewall designs, flexibly adaptable to different cryogenic valves to be tested; two heaters connected to a temperature controller respectively installed on the heat sink and the pipe clamp; a GM refrigeration unit installed inside the cryogenic thermostat, including two-stage cold heads; a second cold shield surrounding the two-stage cold heads; a secondary cold head with a secondary heat exchanger connected to the valve heat exchanger; a helium supply device connected to the primary heat exchanger on the primary cold head; a helium recovery device connected to the valve heat exchanger; and a vacuum pump unit connected to the cryogenic thermostat. This invention improves testing efficiency and device utilization.

This utility model relates to the field of lithium battery testing equipment and discloses an aluminum-cased battery cell OCV testing fixture. Its features include: a base with a positioning component for fixing the battery cell; a guide post vertically mounted on the base; a fixing plate fixedly mounted on the guide post; a push plate slidably mounted on the guide post; a positive electrode probe group and a negative electrode probe group mounted on the push plate; and a pusher component on the fixing plate for controlling the push plate's up-and-down movement along the guide post. This utility model features improved testing efficiency and strong versatility. Furthermore, the test is completed by pressing the probes down using a cylinder, ensuring good contact and stable operation.

The application discloses a kind of test simulation equipment for simulating throwing anchor, dragging anchor in ship movement.The equipment includes water tank and track system, tow control system, anchor operating mechanism and data acquisition and processing system;Water tank and track system provide test water environment and the height of trailer (for simulating ship) from water surface, tow control system drives trailer to move along track, anchor operating mechanism controls anchor dropping position by receiving signal, realizes throwing anchor simulation, data acquisition and processing system monitors anchor chain stress in real time, captures anchor body into water and dragging process by high-speed camera, all data are integrated transmission to control computer by synchronizer, and after processing, output anchor dropping speed curve, anchor chain dragging force peak value and drag anchor trajectory and other parameters.The all test simulation elements of the application are controllable and known, easy to use, can play the role of improving the accuracy and test efficiency of ship throwing anchor, dragging anchor test simulation.

The application provides a water tank capable of simulating a decompression environment and a multi-degree-of-freedom underwater launching device and a use method thereof, and belongs to the technical field of ocean engineering test. The application solves the problems of insufficient flexibility, complex structure and poor environmental adaptability of a traditional underwater launching device, and provides a test method for researching the multi-degree-of-freedom motion characteristics of a cross-medium water-exiting underwater multi-degree-of-freedom motion. The application comprises a decompression water tank, a lifting platform structure, a two-degree-of-freedom holder device and a horizontal sliding platform device. The application can realize the simulation of the multi-degree-of-freedom motion conditions of an environmental pressure, an attack angle, a pitch angle, a roll angle and a heave motion single-degree-of-freedom or multi-degree-of-freedom superposition of a carrying platform, and can meet the inclined launching test of a water-exiting vehicle. The application is mainly applied to the simulation of the underwater multi-degree-of-freedom motion of a cross-medium vehicle under a scale model ejection condition.

This utility model relates to the field of PCB board testing technology and discloses a PCB board that can replace the bed-of-pipe wiring of test fixtures. It includes: a PCB support base plate, a PCB encapsulation cover plate, and a PCB board body. The PCB encapsulation cover plate is fixedly connected to the top surface of the PCB support base plate, and the PCB board body is slidably connected to the inner side of the PCB encapsulation cover plate. A buffer guide assembly is disposed between the PCB support base plate and the PCB board body. A pin connection adjustment assembly is disposed on the side of the PCB board body. This utility model improves stability and reliability through buffer guidance, enhances flexibility and shortens test preparation time through pin adjustment, reduces maintenance and customization costs and test errors by replacing traditional probes with a PCB board, and also reduces contact pressure to protect the circuit board under test. It solves the problems of complex process, high cost, poor flexibility and adaptability, and easy damage to test points associated with traditional bed-of-pipe wiring.

The present application relates to the field of hypersonic ground test, disclose a kind of pure air regenerative heater for hypersonic wind tunnel, inner shell is equipped with heat accumulator, several heating channels and air channels are equipped on heat accumulator, several heating rods are correspondingly assembled in several heating channels, and the free space of stop sheet is all capped on several heating channels, so that temperature distribution of heat accumulator is uniform in heating process, while reducing the internal thermal stress of heat accumulator, the temperature uniformity of heated gas is increased, one end of several air channels is communicated with the air inlet of inlet end cover, the other end is communicated with the air outlet of outlet end cover, several heating channels and air channels are independent channels, high-temperature metal is closed using heat accumulator, the contact between airflow and high-temperature metal is reduced in heating process, prolongs the service life of heater. By extending into the shell and contacting with the wire through terminal post, inductive heating mode is adopted, and the working efficiency of the heater is improved.

The utility model belongs to test device technical field especially a circuit board testing device, aim at when carrying out salt mist test, circuit board is inconvenient to fix, the problem that horizontal placement is easy to influence back test effect, present and propose following scheme, including sealed cabinet, the cabinet mouth place of sealed cabinet one side is rotatably installed with two sealed cabinet doors, the inner wall of sealed cabinet is fixed with two horizontal poles symmetrically, be provided with the hanging component for vertical circuit board on the horizontal pole, the top of sealed cabinet inner wall is fixed with liquid injection pipe through bolt. The utility model discloses through setting up hanging component to realize circuit board vertical fixation, avoid horizontal placement back and cabinet contact to cause the salt mist deposition uneven, ensure that test surface is exposed to salt mist environment completely, improve the accuracy of corrosion evaluation, and the clamping structure of U type card frame and the setting of holding rod, facilitate the batch installation and taking out of circuit board, shorten test preparation time.

The utility model relates to cable production technical field especially is a kind of cable tensile strength testing device, including base, test mechanism is arranged on the base and is used for cable tensile strength test, test mechanism includes: main component, including fixed in the left and right sides of servo motor ball screw of base upper end, fixed with lifting frame between the slider of two sides servo motor ball screw, lifting frame bottom is equipped with pressure sensor, pressure sensor and base are all provided with clamp and are used to clamp the both ends of cable;Supporting component, including fixed in the left and right sides of protection cover of base top and is used to protect lifting frame, protection cover front end is fixed with guide rail;Adjusting component, including the carriage between two sides guide rail;Manual lifting baffle design is adopted, and when clamping, baffle is lifted to facilitate operation, and when testing, it is formed protection to drop down;It is easy and safe to operate, both ensure test efficiency and effectively prevent cable breakage splashing risk.