210results about "Shock testing" patented technology

The utility model discloses a kind of unhooking system automation testing device, it is related to testing device technical field.The utility model includes: test frame;Unhooking device;Towing device, towing device is installed in the top of test frame, and the traction end of towing device is fixedly connected with unhooking device;Impact device, impact device is slidably fitted in test frame, and impact device is matched with unhooking device;Protective device, protective device includes telescopic baffle and restraint component;Wherein, restraint component includes shell, shell is installed in the side of test frame, and baffle lever is slidably fitted in shell.The utility model is rolled up traction rope by the motor drive winding roller of towing device, realizes the automation of unhooking device and impact device lifting.Compared with artificial lifting, the lifting height of this structure can be controlled Impact device, make the initial condition of multiple tests consistent, improve the repeatability of test data;While reducing labor cost, improve test efficiency.

A fibre-reinforced polymer composite component 2 formed from a polymer matrix material containing fibre reinforcement. The component 2 comprises a main portion 4 and at least one raised feature 6 extending from a surface plane s of said main portion 4. The at least one raised feature 6 is arranged to incur visually perceptible damage when the component 2 is subject to an impact with an energy above a predetermined impact energy threshold and to resist an impact with an energy below the predetermined impact energy threshold.

The application relates to the field of impact dynamics tests, and particularly discloses an electronic instrument high-g-value impact characteristic test evaluation device and method. The device comprises an adapting section, a pulse shaper, and a base. The adapting section is coaxially connected with the tail of a high-speed gas gun launch tube to form a radially constrained loading channel and is movably connected with an impact mass. The pulse shaper is arranged in the adapting section. The base is slidably connected in the adapting section and located behind the pulse shaper, and is used for bearing the load transmitted by the impact mass when the impact mass hits the pulse shaper. The base has a front cavity and a rear cavity, and the rear cavity contains a measuring body. A diaphragm pressure gauge is arranged on the front end impact surface of the base, a base accelerometer is arranged in the front cavity, and a multi-parameter sensor is arranged in the measuring body. The device can accurately obtain an excitation load, realize distributed synchronous measurement of multiple physical quantities, has reliable signal line protection and kinetic energy absorption mechanism, and improves the accuracy and reliability of performance evaluation of electronic instruments and protective components of the electronic instruments under a high-g-value impact environment.

This utility model belongs to the technical field of drive shaft impact testing benches, specifically an automotive drive shaft impact testing bench, including a body and a base at its upper end. A sliding seat and a fixed seat are respectively installed at both ends of the base. A rotating seat is installed inside the fixed seat, and a transfer ball is fixed to the front end of the rotating seat. A three-jaw chuck is installed inside the front end of the fixed seat via the transfer ball. A ring frame is slidably installed inside the fixed seat, located outside the three-jaw chuck. A conical platform is fixed to the inner side of the front end of the ring frame. This utility model allows drive shafts to be installed in an inclined state, making it easier for a single person to operate long and heavy drive shafts. It also simulates different bumpy conditions during vehicle operation, making the test results closer to reality.

This invention provides a track elevation adjustment device, comprising: an adjustment bracket; a track clamp vertically disposed inside the adjustment bracket in a position-adjustable manner; and a drive unit with a power output end connected to the track clamp. This invention supports the track clamp and drive unit through the adjustment bracket, clamps the track to be adjusted through the track clamp, and drives the track clamp to adjust its vertical position through the drive unit, thereby vertically lifting the track to be adjusted and adjusting the adjusting shims at the bottom of the track. After adjustment, the drive unit drives the track clamp to lower its vertical position so that the track falls onto the adjusted shims, completing the elevation adjustment. The device allows for one-time elevation adjustment, precise adjustment of the track's height, and convenient adjustment.

The application discloses a new energy automobile powder metallurgy transmission shaft torsion impact test bench, which comprises a bottom plate, a rack, a traction mechanism, an impact hammer and a torque testing device, the traction mechanism is fixedly installed on the bottom plate and the rack, the impact hammer is slidably arranged in the interior of the rack, and the torque testing device is fixedly connected to the right side of the top of the bottom plate, and the application relates to the technical field of mechanical property testing. The new energy automobile powder metallurgy transmission shaft torsion impact test bench connects the pull rope and the impact hammer by the mode that the clamping block clamps the hook block, so that the pull rope and the impact hammer can be quickly separated, and then the impact hammer is not affected by the resistance of the motor output shaft rotation when falling, the impact force of the impact hammer is easier to measure, errors are not prone to occur, and the clamping block is matched with the triangular block, the pull rope pulls the impact hammer to the top, the triangular block pushes the clamping block to the two sides after pushing away the clamping block, and the release of the impact hammer can be automatically realized, and an electric grabbing release structure is not needed, so that the cost is low.

The utility model relates to road and bridge construction detection technical field, concretely is a kind of bridge light weight detection device, comprising: mutually screwing and fixed lower shell, upper shell;Hammering rod is provided in lower shell, the side wall of lower shell is movably inserted and is provided with the lug of the clamping hammering rod;Piston is sealingly and movably arranged in upper shell, the lower end of piston is abutted and is provided with thrust spring, the lower end of thrust spring is abutted with hammering rod;Air pump is fixedly arranged on the side of upper shell, the air outlet end of air pump is communicated with upper shell, and piston moves downward when inflating. The utility model relates to a kind of bridge light weight detection device, can more easily compress spring.

The application relates to the technical field of quality detection, in particular to a helmet quality detector, which comprises a supporting circular table, a helmet limiting unit, a shielding unit and a synchronous detection unit, the synchronous detection unit is integrated with an extrusion and abrasion assembly and an impact and puncture assembly, multi-station switching is realized through a rotating supporting assembly, and four detections of impact resistance, puncture, abrasion and extrusion can be simultaneously conducted on multiple helmets; the application has the advantages of high detection efficiency, simple operation, safety and reliability, high function integration and the like, and is suitable for rapid quality inspection in the helmet production process.

The present disclosure relates to the technical field of test equipment, and provides a falling test device, which comprises a lifting assembly, a sliding assembly, a containing assembly and a cushion plate assembly; the lifting assembly has a lifting piece and a driving motor in transmission connection with the lifting piece; the sliding assembly is in separable connection with the lifting piece and can move upward synchronously with the lifting piece or freely fall alone after being separated from the lifting piece; the containing assembly is connected with the sliding assembly and has a containing space for containing an object to be tested; the cushion plate assembly is correspondingly arranged below the containing assembly and is used for receiving the containing assembly and detecting the impact load when the containing assembly falls; the driving motor can electrically drive the lifting piece to move upward to a fixed height. The falling test device has the beneficial effects of being able to accurately control the falling height and having high test efficiency.

This utility model discloses a rear crossbeam energy-absorbing box inspection fixture with a quick calibration mark. The fixture includes a base, a clamping mechanism mounted on the top of the base, a collision mechanism on the top of the base, an energy-absorbing box between the collision mechanism and the base, and a calibration mechanism on the top of the base. This utility model automatically guides the energy-absorbing box to fall precisely through a lower-wide, upper-narrow protrusion structure on the top of the positioning seat, allowing the reinforcing rib to naturally engage with the protrusion, achieving calibration without adjustment. Then, by moving the limiting rod and the movable rod, a gear and rack simultaneously drive the top block to lift the positioning seat and the movable rod, pressing them together to form a two-way locking mechanism, replacing the traditional multi-clamp step-by-step operation. Next, the limiting hook automatically locks the movable rod using the characteristics of a torsion spring, ensuring the stability of the collision test. A sensor located on the top of the protrusion directly captures the impact force data, significantly improving detection efficiency and operational smoothness.

The application relates to a lifting device and method for the floating of an underwater submersible with a broken ice top and suitable for an irregular structure, and belongs to the technical field of low-temperature towed ice water pool model tests. The lifting device comprises a lifting frame body, a supporting base and a sensor, the supporting base is provided with the sensor, the supporting base is connected with the lifting frame body, the supporting base comprises a supporting frame connected with the lifting frame body, the supporting frame is provided with a cross beam, and the cross beam is provided with the sensor; the sensor is provided with an irregular structure through a cushion block; the cushion block comprises one end of a driving structure connected with the sensor and the other end of the driving structure connected with the irregular structure. When the lifting device is used, the offset caused by the uneven mass distribution of the irregular structure can be effectively offset, the installation requirements of irregular structures with different widths and shapes can be quickly adapted, and the consistency of the initial state of the test loading and the accuracy of the test results are ensured.

This utility model discloses an adjustable drop test device for metal components, belonging to the technical field of drop test devices. The adjustable drop test device for metal components includes a support base, on the top of which are mounted a vertical drop test component, a spill drop test component, and an adjustable drop impact platform component. The vertical drop test component includes four guide rods fixed to the top of the support base. This utility model, by setting up a horizontal vertical drop test component and a spill drop test component, uses the guide rods as a base and a lifting mechanism to adjust the height of the placement base, combined with a limiting structure to achieve a vertical free fall of the component, thereby simulating drop scenarios at different heights. The spill drop component allows the metal component to be thrown in a parabolic trajectory, recreating an accidental drop. Therefore, this device can simulate both vertical and spill drop scenarios of metal components, solving the problem of the limited functionality of existing drop test devices and improving its practicality.

The application discloses an electromagnetic low-speed launching device in a supergravity centrifuge, which comprises a box body, a top plate arranged on the top of the box body, a hinged support arranged under the top plate, one end of a first supporting rod connected with the hinged support, the other end of the first supporting rod connected with one end of a second supporting rod, the other end of the second supporting rod connected with a telescopic pipeline, an electrified wire wound on the surface of the second supporting rod, a cavity arranged at the bottom of one end of the telescopic pipeline connected with the second supporting rod, a small ball arranged in the cavity, and a launching test buffer layer arranged at the bottom of the box body. The launching device can be remotely controlled, the launching time can be controlled, the launching speed and angle can be adjusted, and the device can effectively launch the solid in the supergravity centrifuge. The device is simple and convenient to operate, high in repeatability, stable and reliable in operation.

The utility model relates to a hail placement workpiece for hail launcher, it includes: the ball box, the ball box detachably installs on the launching pipeline, the launching pipeline has the import and the export, the ball groove, the ball groove penetrates the ball box, and is linked with the export of launching pipeline, the carrier assembly, the carrier assembly ring is established in the inner peripheral surface of ball groove, is used for the ice hail that drags the load and places in ball groove, the utility model discloses a hail placement workpiece for hail launcher through setting up the carrier assembly on the peripheral surface of ball groove, and the ice hail that is loaded is carried, and the ice hail will overcome the ball of elastic support when actually spraying, finally shoots from the hail launching pipeline, to this completes the process of simulating hail drop, simple structure, can play the support effect to the ice hail when loading the ball, avoids the direct drop of ice hail, and can also avoid the falling path of ice hail when spraying, avoids the ball mouth of ice hail and is stuck.

This utility model relates to the field of motorcycle helmet processing technology and discloses a robustness testing device for motorcycle helmet processing. It includes a processing table, with adjustment components on both sides of the processing table and a mounting frame between the adjustment components. An electromagnet is fixedly installed at the center of the bottom of the mounting frame, and a gravity block is magnetically attracted to the bottom of the electromagnet. A helmet fixing component is also provided at the center of the top of the processing table, and a protective component is also provided on the processing table. The adjustment components include support frames fixedly installed on both sides of the processing table, with threaded sleeves rotatably installed on the inner walls of both support frames. This utility model uses a motor in the adjustment components to drive a lead screw to rotate, causing the threaded sleeves and mounting frames to rise and fall. Combined with the scale on the front of the support frame, the height of the gravity block can be precisely adjusted, effectively solving the problem of the non-adjustable gravity block height in traditional devices. This device can meet the needs of different helmet types, testing standards, or experimental requirements.

The application discloses a kind of mine water spraying vehicle water tank performance verification method and device, it is related to mine vehicle tank testing technical field;The method is connected by real vehicle hinge point in the connecting frame with bottom plate with guide roller, using horizontal force simulation acceleration and deceleration impact, multiple point adjustable vertical force simulation road bumping, can be loaded alone or compound, according to actual load spectrum complete strength, rigidity and baffle arrangement rationality verification.Device includes water tank, connecting frame, bottom plate, horizontal and vertical loading mechanism, connecting frame can move along horizontal direction, vertical loading point quantity, position, force value can be adjusted.The present application can truly reproduce mine area harsh working conditions in laboratory, solve the existing problem that only rely on simulation cannot be verified in entity, test accurate, strong universality, fill the method blank of mine water tank performance verification, suitable for all kinds of mine water spraying vehicle water tank and liquid tank body reliability test.

The application relates to the technical field of collision test, in particular to an intelligent bionic dummy system for automobile collision test and a collaborative control method. The system comprises: a bionic dummy body; joint driving modules arranged at multiple main joints of the bionic dummy body, wherein each joint driving module comprises: a magneto-rheological damping channel, an active traction channel, a multi-source sensor and a local execution controller; and a central control module in communication connection with the joint driving modules; the local execution controller constructs a target torque according to equivalent stiffness parameters, equivalent damping parameters, a target balance angle and a target torque amplitude allowed to be applied in a collision stage, and obtains a first sub-target torque distributed to the magneto-rheological damping channel and a second sub-target torque distributed to the active traction channel according to a distribution ratio. The application solves the problems of limited adjustment capability of main joint dynamics of an existing dummy system and insufficient multi-joint collaboration.

The application relates to the technical field of power battery safety simulation, in particular to a battery cell failure threshold calculation method and device and a vehicle, wherein the method comprises the following steps: simplifying the structure of a battery cell into a battery cell shell and a winding core, obtaining test data of the battery cell shell and the winding core, determining a first mechanical material of the battery cell shell according to the test data of the battery cell shell, and determining a second mechanical material of the winding core according to the test data of the winding core; establishing a battery cell simulation model according to the first and second mechanical materials, obtaining and identifying a mechanical response signal when the voltage drop of the battery cell is zero in the test data of the battery cell, determining the stress state of the winding core when the voltage drop of the battery cell is zero in the battery cell simulation model according to the signal; simulating the battery pack and the whole vehicle collision by using the battery cell simulation model, identifying the stress state of the winding core when the voltage drop of the battery cell is zero in the simulation result, and calculating the threshold value when the battery cell fails according to the stress state. Therefore, the problems that the battery cell fails in the collision process and the safety of the battery cell is difficult to be accurately evaluated are solved.

The utility model relates to a skid -type undercarriage drop test device, including gantry, electric hoist, electromagnet, metal section tool rest, counterweight, the metal section tool rest is used for installing counterweight, and still include the undercarriage installation tool of skid -type undercarriage, electric hoist fixed mounting is below the gantry, is used for driving the lift of electromagnet, the electromagnet can adsorb the metal section tool rest when electrification.

This invention relates to a bird strike test fixture and method for composite material blades of aero-engines. The invention includes an outer spherical shell; an inner spherical shell installed within the outer shell, the inner shell having a top opening; a limiting hemisphere installed within the top opening of the inner shell; a clamping assembly including two contoured clamping blocks and a sliding rod, each contoured clamping block including a clamping end, an arcuate spherical surface, and a connecting rod; and a magnetorheological locking assembly disposed within the upper shell, including a flexible bag and excitation coils. The flexible bag is filled with magnetorheological fluid and disposed within the central cavity, and multiple excitation coils are disposed in two side cavities and distributed around the periphery of the flexible bag. This invention achieves different angular rotations of the composite material blade of an aero-engine by releasing multiple rotational degrees of freedom, thereby simulating the stress distribution and damage types of the blade under harsh operating conditions from impacts at different angles, thus improving the accuracy and reliability of the test data.

The utility model discloses a kind of electric limiter thrust performance test devices, it is related to thrust test technical field, wherein, electric limiter thrust performance test device includes frame body, fixed part, guide part, load part and counterweight assembly.Fixed part is set on the frame body, to fix electric limiter;Guide part is set on the frame body and is located the circumferential side of the fixed part, the guide part is extended and set upwards;Load part is movably set on the guide part along up and down;Counterweight assembly includes multiple weights, at least one the weight is detachably installed on the load part.The technical scheme provided by the utility model aims at being able to measure thrust performance quickly to electric limiter, further shorten the development cycle of electric limiter.

The application discloses a collision detection device, a range hood and a collision detection method. The collision detection device comprises a detection assembly and a control unit. The detection assembly is fixedly connected with a moving body and can be synchronously displaced with the moving body. During the displacement of the moving body, the detection assembly is configured to acquire movement information of the moving body in at least one preset direction. The control unit is configured to determine a collision condition of the moving body and an obstacle based on the movement information of the moving body in the at least one preset direction. In the embodiment of the application, the control unit can determine the collision condition of the moving body and the obstacle based on the movement information of the moving body collected by the detection assembly, so that the range hood can stop the displacement of the moving body when the moving body collides with the obstacle, thereby preventing the moving body from being further damaged or deformed.

The application discloses a kind of deep-buried shield tunnel segment joint explosion test device and test method thereof, including reinforced concrete cushion, reinforced concrete box culvert, shield tunnel segment clamp plate, reinforced concrete cover plate, earth pressure loading assembly, fixed axial force loading assembly and pressure measurement assembly.The application utilizes the circular arc design of reinforced concrete box culvert and the combination of shield tunnel segment test specimen through shield tunnel segment clamp plate, restores the boundary condition of shield tunnel segment joint under explosion load, restores high water-soil pressure under deep-buried condition of shield tunnel in cooperation with earth pressure loading assembly, simulates the stress characteristics of shield tunnel under deep-buried environment, uses fixed axial force loading assembly, realizes constant axial force loading of shield tunnel segment before and after explosion, loads axial force of shield tunnel segment joint to design value, can keep constant before and after explosion, considers the reflection effect of explosion shock wave on tunnel inner wall, so as to better restore the explosion load characteristics in actual tunnel.

The utility model discloses a strength measuring device for an automobile rear anti-collision beam with a protection structure, comprising: a support base, an installation hole is arranged above the support base, and a fixing plate is fixedly installed above the inside of the installation hole through bolts, and a hydraulic cylinder is arranged inside the fixing plate, and an installation block is installed outside the output end of the hydraulic cylinder; a maintenance mechanism for extending the service life of the hydraulic cylinder is arranged on the outer right side of the output end of the hydraulic cylinder. The strength measuring device for the automobile rear anti-collision beam with a protection structure can effectively block the splashing of fragments after the rear anti-collision beam is impacted through the setting of the protection structure, effectively ensuring the personal safety of testers. At the same time, a shock absorption mechanism is arranged, and a shock absorption mechanism is arranged at the output end of the hydraulic cylinder, which can reduce the impact damage brought to the hydraulic rod by the impact. In addition, a maintenance mechanism is arranged, which can effectively maintain the hydraulic cylinder, thereby greatly extending the service life of the hydraulic cylinder.