773 results about "Impact testing" patented technology

The invention discloses a valve vibration impact test method and system based on digital twinning, and belongs to the technical field of industrial equipment test and evaluation. The method comprises the following steps: firstly, deploying a multi-source sensor network, constructing a physical entity layer of a valve vibration impact test, collecting and preprocessing various physical monitoring data, and constructing a digital twinborn body layer; secondly, real-time data assimilation with a physical test bed is realized through parameter calibration and updating of a digital twinborn model based on various physical monitoring data and the digital twinborn layer; and finally, executing a virtual vibration impact test, realizing prediction and evaluation of global response and key part information of the physical entity according to a test result, and finally realizing interaction and performance prediction. And the valve vibration impact test is realized through the valve vibration impact test system. According to the method, the fault diagnosis capability, the early damage identification capability and the valve state prediction and evaluation capability can be remarkably improved, and the defect of insufficient field monitoring information is overcome.

The invention relates to the field of detection, in particular to a glass fiber asphalt shingle quality detection device. Traditional detection equipment has significant limitations which are mainly embodied in that only impact at a single position can be simulated or randomness is lacked, and diversified impact conditions possibly encountered by asphalt shingles in actual use cannot be accurately reflected. The glass fiber asphalt shingle quality detection device comprises a shell, and a frame body and the like are arranged in the shell; the frame body is of an open structure, and a placing frame is arranged in the frame body in a sliding mode. According to the invention, the two electric push rods drive the lifting frame, the two push blocks and the two transverse shafts to move synchronously, so that the knocking block can carry out repeated impact test on the asphalt shingle body, and the continuity and consistency of the test are ensured; not only is the efficiency of the knocking test improved, but also the flexibility of force adjustment in the detection process is improved, and the impact resistance requirements of different asphalt shingle bodies can be met; through multiple impact tests, the quality evaluation of the asphalt shingle can be ensured to be more comprehensive and accurate.

The embodiment of the invention provides an airplane windshield glass service reliability test method and system and a medium, and the method comprises the steps: carrying out the coupling simulation of a test environment based on a plurality of environmental factors, and building a plurality of environmental factor cooperative control test modes; performing an impact test on the aircraft windshield based on the collaborative test mode to generate damage monitoring data; analyzing the damage monitoring data based on the damage mechanical model, and generating damage acceleration state data; inputting the damage monitoring data and the damage acceleration state data into a life prediction model, and outputting residual life prediction data; analyzing the damage acceleration state data and the residual life prediction data based on the reliability standard information to obtain a reliability test result, and transmitting the reliability test result to the terminal in real time; the mode testing environment is carried out through multiple environmental factors, so that impact testing of different environments is carried out on the aircraft windshield glass, the testing diversity is improved, damage monitoring is carried out on the glass, and the reliability testing precision of the glass is improved.

The invention relates to automobile part testing, and relates to the technical field of an automobile door limiter durability testing device, and the device comprises an adjusting mechanism which comprises a first motor, a first rotating disc, a first sliding groove, a threaded rod, a first piston rod, a first sliding block, a second rotating disc, a second sliding groove and a sliding rod. Through cooperation of structures such as the second rotating disc and the arc-shaped plate, simulation testing of the vehicle door limiter is facilitated, the first motor is started to enable the second rotating disc to rotate continuously through transmission, the arc-shaped plate drives the cantilever to swing in a reciprocating mode, and the state of the limiter during door opening and closing is simulated; the durability cycle test, the motion precision verification and the instantaneous impact load evaluation of the vehicle door limiter are realized, the test automation degree and the simulation precision are improved, the negative pressure generates variable damping force, simulates air resistance, spring pre-tightening force and door closing impact, the durability of the limiter under real stress is tested, and the test effect of the device is improved.

The invention discloses a rotator cuff injury impact test method based on sensor data analysis, and relates to the technical field of intelligent medical equipment, and the method comprises the steps: inputting a joint contracture data set into a generative adversarial network model, carrying out pressure propagation mode analysis through a three-dimensional convolution layer, carrying out energy hot spot aggregation through an attention mechanism layer, and carrying out pressure propagation mode analysis through a three-dimensional convolution layer; the method comprises the following steps: generating a pressure field comprehensive vector of a contracture joint, extracting gradient amplitude and energy density characteristics in the pressure field comprehensive vector, performing neighborhood smoothing through Gaussian average filtering, obtaining an acoustic impedance value matrix, synchronously performing spatial continuous mapping, obtaining an acoustic impedance distribution diagram, and obtaining an acoustic impedance value of the contracture joint according to the acoustic impedance distribution diagram. And performing dynamic compensation on the pressure field comprehensive vector through an acoustic transmission equation to obtain a corrected pressure field comprehensive vector, and converting the corrected pressure field comprehensive vector into an impact control signal through a PID (Proportion Integration Differentiation) controller. According to the invention, through the generative adversarial network model and the PID controller, the multi-physical field data of the joint contracture area can be integrated, and the frequency and pulse width of the shock wave therapeutic apparatus can be adjusted.

The invention discloses a drop impact resistance testing device, which relates to the technical field of impact testing devices and is technically characterized by comprising an electric sliding rail, a temperature and humidity simulation structure is arranged at the top end of the electric sliding rail, and a ground simulation structure is arranged at the bottom end of the electric sliding rail. The temperature and humidity simulation structure comprises a three-fork fixing frame fixedly installed at the top end of the electric sliding rail, a hydraulic cylinder is fixedly installed on the three-fork fixing frame, and a first pressure sensor is fixedly installed at the output end of the hydraulic cylinder. Closed-loop temperature control is constructed through the double-layer simulation box, a thermoelectric semiconductor and an atomizer, and the marine transportation high-humidity, cold-chain low-temperature and high-temperature environment is simulated; a hydraulic cylinder is combined to drive a hollow pressing plate to restore stacking pressure, and the pressed softening state of the carton is monitored in real time. Meanwhile, the ground simulation structure restores falling impact of various landing scenes such as cold chains, sea transportation and trucks. A real transportation scene is simulated in the whole process, and the accuracy and comprehensiveness of carton impact resistance evaluation are remarkably improved.

The invention discloses an impact resistance test device and method for an energy-absorbing anti-collision structural member, and relates to the technical field of automobile anti-collision members. Comprising a support, a drop hammer mechanism arranged on the support and capable of sliding in the Z direction, a clamp arranged at the bottom of the support and used for clamping a test piece, and a force value sensor arranged below the clamp and used for collecting impact force borne by the test piece. The first displacement detection component is arranged above the test piece and can be used for measuring the concave depth of the upper surface of the test piece, the second displacement detection component is arranged between the test piece and the force value sensor and is used for measuring the convex height of the lower surface of the test piece, and the first displacement detection component can move in the X direction and the Y direction. The first displacement detection component can measure the concave depth of the upper surface of the sample in a multi-point mode, the second displacement detection component can measure the protruding height of the lower surface of the sample, it is ensured that the initial error can be accurately deducted from the displacement variation after impact, and the measurement precision of the upper and lower surface deformation of the sample is improved.

The invention discloses an electromagnetic ejection type impact testing machine device and a testing method, and belongs to the technical field of impact testing. The problem that when an existing impact testing machine needs a high impact speed, the device also needs a large acceleration distance is solved. The first electromagnetic main track and the second electromagnetic main track are fixedly connected to the track support in the length direction, the two electromagnetic auxiliary tracks are fixedly connected to the portions, on the two sides of the first electromagnetic main track, of the track support respectively, and the two electromagnetic auxiliary tracks, the first electromagnetic main track and the second electromagnetic main track each comprise two parallel linear tracks. The linear track is formed by arranging a plurality of stators in the length direction, and each stator is wound with an electromagnetic coil. According to the invention, through the electromagnetic track acceleration device, a large impact speed can be obtained in a small acceleration distance, the automation degree of an impact test is improved to a great extent, and flexible adjustment and accurate control of impact gears are realized.

The utility model discloses an impact testing machine for hub detection, which comprises a workbench and an impact assembly, a support is fixedly mounted at the top of the workbench, the impact assembly comprises a magnetic attraction seat, a guide plate, a guide rod, a mounting plate, a bidirectional screw rod, a fixing rod, a knob, an impact hammer and a fixing plate, and an electric telescopic rod is mounted in the middle of the top of the support. The bottom of the electric telescopic rod penetrates through the support and is fixedly provided with a connecting plate. The two-way lead screw is driven to rotate by screwing the rotary knob clockwise and anticlockwise, then the fixing rods on the two sides can be driven to move towards the outer side at the same time, fixing of the fixing plate is lost, the impact hammer can be conveniently taken down, the impact hammer can be conveniently replaced, and when the impact hammer is installed, the fixing plate is placed in the groove body, so that the impact hammer is installed conveniently. The fixing holes are aligned with the fixing rods, then the knob can be screwed anticlockwise, the fixing rods are driven to move towards the inner side at the same time, and the impact hammer is installed.

The invention discloses a storage battery electrode plate strength test system, and relates to the field of electrode plate strength test.The storage battery electrode plate strength test system comprises a multi-angle tool device and an array type impact test device.The multi-angle tool device comprises a base, a first tool platform, a second tool platform and a tool side plate, the first tool platform is rotationally installed on the base, and the second tool platform is rotationally installed on the tool side plate; the second tool platform is rotationally installed on the first tool platform, the rotation axis of the first tool platform is perpendicular to the rotation axis of the second tool platform on the horizontal plane, the array type impact testing device comprises an impact bottom plate, a lifting driving plate and impact rods, the impact rods are arranged on the impact bottom plate in a sliding and penetrating mode, and the impact rods are arranged in a rectangular array mode. The lifting driving plate is arranged above the impact bottom plate, a plurality of driving columns are arranged on the lifting driving plate in a rectangular array mode, each driving column is provided with an impact rod, the driving columns are detachably connected with the impact rods, simulation is conducted by accurately adjusting the tool angle, and it is ensured that a test scene is highly matched with the actual working condition.

The invention relates to the technical field of pendulum impact testing machines, in particular to PC material impact resistance detection equipment and a detection method.The PC material impact resistance detection equipment comprises a rack, a base, a sample seat, a swing arm, a pendulum, a motor and a sample, a separation structure is arranged at the top of the rack, and the sample seat is provided with an automatic fixing structure; the separating structure is used for overcoming the counter-acting force of a motor rotor, the automatic fixing structure automatically fixes a PC material sample through rotating force generated by a motor, an electromagnetic sliding block moves outside an electromagnetic sliding rail, the motor is driven to retreat through movement of the electromagnetic sliding rail, and at the moment, an inserting rod moves in an inserting groove. After the motor moves, the first gear and the second gear are separated from the meshing state and are not affected by counter-acting force, and then the detection precision of the pendulum bob on the sample is improved.

The invention relates to the technical field of new energy battery detection, in particular to a new energy battery pack impact resistance detection device which comprises a base, a falling table, a sliding table, an inclined table and a transverse impact generator. A battery pack is installed on an inclined table with the inclination angle capable of being adjusted, the inclined table is installed on a sliding table capable of moving in the horizontal direction relative to a falling table, an impact executing piece is arranged at the bottom of the sliding table, and an impact triggering piece is arranged on a base. When the falling table drives the sliding table, the inclined table and the battery pack to freely fall to a preset position, the impact executing piece collides with the impact triggering piece, the sliding table generates instantaneous impact relative to the falling table in the horizontal direction, and therefore horizontal impact generated when the battery pack falls at different angles is simulated. The problem that an existing battery impact testing device cannot simulate impact force in the horizontal direction when the battery freely falls is solved.

According to the repeated impact test device for multiple impact tests and the loading waveform control method, a special-shaped impact rod is adopted to replace a traditional cylindrical impact rod, the end, making contact with the impact rod, of an incident rod is designed into a cone, and the diameter of the end face of the incident rod with the special-shaped end is consistent with that of the end face of the special-shaped impact rod; aiming at the requirements of the tested material and structure on the loading waveform, the waveform with different forms and different rising edges can be realized by designing the cone angle and the shape of a cone or designing a complex curve profile, a multi-segment cone and the like, and the accurate control of the loading waveform is realized; according to the automatic multi-impact test device based on the split Hopkinson pressure bar, the defect that disposable accessories need to be replaced in a traditional waveform shaping control method can be overcome, it is guaranteed that the waveform meets the test requirement during impact loading every time, the amplitude is constant, the waveform is consistent, stable and reliable, the test precision and efficiency are improved, and the test cost is reduced. The device can be applied to automatic multiple impact tests based on the split Hopkinson pressure bar.

The invention discloses an aerodynamic damping rapid estimation method for a rotating blade, and the method comprises the steps: selecting a test impeller, obtaining an attenuation signal of a blade of the test impeller based on an impact test, and obtaining a structural damping ratio of the blade according to the attenuation signal through a free attenuation method and a nonlinear least square method; a BTT test technology is introduced, and the total damping ratio of the blade is obtained based on the BTT test technology and a nonlinear least square method; based on the structural damping ratio and the total damping ratio of the blade, an aerodynamic damping estimated value of the blade is obtained, and estimation of aerodynamic damping is achieved; according to the method, the BTT data analysis technology and the free vibration attenuation theory are combined, quantitative estimation of the aerodynamic damping ratio of the rotating blade is achieved, and the aerodynamic damping ratios of all the blades under different vibration pitch diameters can be determined; the pneumatic damping contribution of the rotating blade is quantitatively expressed, the vibration response mechanism of the blade in the service state can be deeply understood, and long-acting safe operation of a unit is guaranteed.

A high-performance battery pack test device provided by the utility model comprises a base, a rack, a lifting mechanism, an electromagnet and an impact hammer, the upper surface of the base is provided with a battery pack placing table, the rack is installed on the base, the lifting mechanism is installed on the rack, the electromagnet is installed on the lifting end of the lifting mechanism, and the impact hammer is installed on the lifting end of the lifting mechanism. At least one impact hammer is arranged, and is magnetically attracted and fixed at the bottom of the electromagnet; the required number of impact hammers to be tested are magnetically attracted and fixed to the bottom of the electromagnet, the impact hammers at the bottom of the electromagnet fall off at the same time through power-off control over the electromagnet, impact testing is achieved, simultaneous impact testing of different numbers of impact hammers can be achieved through the electromagnet magnetic attraction and fixing mode, and use is flexible and convenient.

The invention relates to the technical field of wear resistance testing, in particular to a wear resistance testing device for a wear-resistant coating, which comprises a testing box, a mounting groove is formed in the top of the testing box, a protective cover is hinged to the top of the mounting groove, and a reciprocating rotating mechanism for a rotating friction test and a reciprocating friction test is arranged on the right side of the top of the mounting groove. A swing impact mechanism used for swing impact friction is arranged on the left side of the top of the mounting groove, supporting legs are fixedly connected to the four corners of the bottom of the test box correspondingly, and a control panel is fixedly mounted on the left side of the top of the test box. According to the device, reciprocating rotary friction testing and reciprocating linear friction testing are carried out on coatings of a plurality of substrates at the same time, the abrasion resistance of the coatings in different friction states can be tested, the detection accuracy is improved, reciprocating rolling friction testing and impact testing on the coatings are achieved through the swing impact mechanism, and the testing efficiency is improved. The wear resistance of the coating in various environments can be conveniently simulated, the detection can be performed without replacing equipment, and the test efficiency is high.

The present invention belongs to the field of ferrous metallurgy, and relates to an EH40 crack arrest steel plate for a container ship and a manufacturing method therefor. The steel plate comprises the following chemical components in percentages by mass: C: 0.03-0.06%, Si: 0.15-0.30%, Mn: 1.10-1.30%, P≤0.0080%, S≤0.0030%, Nb: 0.010-0.020%, V: 0.035-0.055%, Ti: 0.008-0.020%, Ni: 0.45-0.65%, Cu: 0.10-0.30%, Ca: 0.0005-0.0020%, H≤0.00015%, Ceq≤0.42%, and the balance of Fe and inevitable impurity elements. The steel plate has a yield strength of 409-440 MPa, a tensile strength ranging from 595 MPa to 625 MPa, a yield ratio of 0.84-0.88, and a longitudinal impact toughness value at -60ºC of greater than or equal to 250 J; and during instrumented impact testing, the energy E3 for crack arrest / unstable propagation and the absorbed energy E4 after crack arrest / unstable propagation account for more than or equal to 20% of the total impact absorption energy, and therefore the steel plate has good crack arrest performance.

The invention provides a humanoid robot joint bearing shock resistance testing device, which relates to the field of robot safety testing and comprises a testing machine supporting seat, a limiting mounting frame, a testing table protective cover, a sliding sealing baffle plate, a positioning mounting rod, a timer pressing switch and a bearing limiting piece. The limiting mounting frame is fixedly connected to the rear side of the testing machine supporting seat; the test board protective cover is fixedly connected to the upper end surface of the test machine supporting seat; the sliding sealing baffle is slidably connected to the front side of the test board protective cover. The positioning mounting rods are fixedly connected to the left and right sides of the sliding sealing baffle; the timer pressing switches are arranged on the left side and the right side of the testing machine supporting seat; the bearing limiting piece is in threaded connection with the upper part of the testing machine supporting seat; according to the invention, the test environment can have sufficient stable time, the condition of deviation of a test result is avoided, the accuracy of the test result is ensured, and the problem that the stable time of the environment is insufficient due to negligence or misoperation of a worker in the test process is solved.

The invention provides an impact experiment device for a control cabinet of a railway vehicle cab, belongs to the technical field of impact experiments, and aims to solve the problem that most of impact test devices can only carry out impact tests in a single direction in the prior art, the impact experiment device comprises a workbench, and the top of the workbench is fixedly connected with an installation ring through an installation frame. A rotating ring is rotationally connected to one side of the mounting ring, a mounting plate is fixedly connected to the rotating ring, and an impact device is rotationally connected to the mounting plate through a first rotating shaft; a vibrating table is arranged on the inner side of the rotating ring, the bottom of the vibrating table is rotationally connected with a supporting plate through a second rotating shaft, the second rotating shaft is driven by a third driving device, and the supporting plate is supported through a support. According to the impact device, 360-degree horizontal rotating positioning of the impact device can be achieved through the mounting ring and the rotating ring, and three-dimensional space multi-angle impact coverage is formed in cooperation with angle adjustment of the impact device. The vibration table integrates a self-rotation function, and coverage of impact tests on the five faces of the vibration table can be achieved.

The invention discloses a new energy vehicle bottom battery pack inclined impact test system and method, and the system comprises a new energy vehicle and a track, the bottom of the new energy vehicle is loaded with a battery pack, the new energy vehicle is installed on the track, and the new energy vehicle is configured to be capable of moving along the laying direction of the track; the impact simulation piece is installed on the ejection assembly, the ejection assembly is installed on the track, and the ejection assembly is configured to be capable of releasing the impact simulation piece so that the impact simulation piece can impact the moving battery pack; the adjusting assembly is installed on the track, the ejection assembly is installed on the adjusting assembly, and the adjusting assembly is configured to be capable of adjusting the angle of releasing the impact simulation piece by the ejection assembly; the new energy vehicle, the ejection assembly and the adjusting assembly can simulate the actual working condition of high-speed driving of the vehicle, a real and comprehensive impact test object is provided for the impact simulation piece, the real and effective test result is ensured, and the actual impact resistance of the battery pack can be accurately reflected.

The utility model relates to the field of rock drill testing, and discloses an impact and torque testing platform of a rock drill, which comprises a pump station base, a rock drill testing operation table is arranged on one side of the pump station base, a hydraulic system assembly is arranged on the other side of the pump station base, and a rock drill impact testing table is arranged on the left side of the pump station base. A rock drill torque test board is arranged on the left side of the pump station base, a second brake base plate is fixedly connected to the top of the bottom plate, and a first brake base plate is arranged on the top of the second brake base plate. According to the utility model, the performance of the rock drill is tested through the hydraulic loop system, data are acquired by operating the test board computer, the system is simple to operate, high in working efficiency and high in safety, the rock drill is tested in advance before being installed, the problem of qualification detection is solved, and the hydraulic system of the drill carriage is prevented from being damaged due to the own problem of the rock drill; the test run cost is low, the loss is low, and the dependence of debugging and testing links on technicians is reduced.

The invention belongs to the technical field of aero-engine blade impact testing, and particularly relates to a multifunctional integrated box for aero-engine blade sandstone high-speed impact experiments. According to the technical scheme, the multifunctional integrated box body for the aero-engine blade sandstone high-speed impact experiment comprises a main box body, an integrated ammunition removing device, a heating module, a laser speed measuring device, a target box, a nitrogen conveying module and an observation device, and the integrated ammunition removing device is arranged on the upper right portion of the main box body; the heating module is arranged at the right lower part of the main box body, the target box is arranged at the left upper part of the main box body, and the nitrogen conveying module is arranged at the left lower part of the main box body; the laser speed measuring device is arranged between the integrated bullet removing device and the target box, and the observation device is arranged above the integrated bullet removing device. According to the invention, reasonable integration of all experimental functions is realized through modular design, and the aspects of structure optimization, space saving, operation efficiency, safety performance and environment control are remarkably improved.

The invention discloses an impact resistance detection device based on a sports protector. The impact resistance detection device is characterized by comprising a detection mold table, a multidirectional deflection structure arranged around the detection mold table, and an impact structure arranged on the multidirectional deflection platform, wherein the impact structure comprises a guide cylinder facing the detection die table and a piston plate connected in the guide cylinder in an elastic guiding manner, the center of the piston plate is connected with an impact shaft, the impact shaft extends out of the guide cylinder, the tail end of the impact shaft is connected with an impact hammer, the guide cylinder is provided with a winch, and the winch is connected with the impact hammer. The winch is connected with an impact motor through a clutch and connected with the piston plate through a movable pulley. The invention aims to provide an anti-impact detection device based on a sports protector. The device is provided with a multi-directional deflection structure, so that the deflection movement of the sports protector in a plurality of planes can be simulated. Meanwhile, in combination with an impact structure, impact testing is carried out on the to-be-tested protector installed on the detection mold table.

An impact test device comprises: a liquid nitrogen tank; the output end of the liquid nitrogen tank is connected with the input end of the environment box; an impact test unit; the impact test part comprises a heat preservation box, a dip angle adjusting device and a clamping device, the dip angle adjusting device and the clamping device are both installed in the heat preservation box, the fixed end of the dip angle adjusting device is installed at the inner bottom of the heat preservation box, and the clamping device is fixedly installed at the rotating end of the dip angle adjusting device; the low-speed impact sample is placed at the rotating end of the inclination angle adjusting device and is clamped by the clamping device, and a hammer head channel is formed in the top of the heat preservation box and is arranged right above the low-speed impact sample; an environmental box; the cold output end and the heat output end of the environment box are communicated with the interior of the heat preservation box. Through cooperation of the liquid nitrogen tank, the environment box and the heat preservation box, sealing and heat preservation of the impact test environment are achieved, and tests of different impact angles can be simulated through cooperation of the inclination angle adjusting device and the clamping device.

The present application relates to the technical field of tire performance testing, and particularly relates to a method, equipment and computer program product for indoor impact test of automobile tire. The method installs an impact strip on a rotating drum of a tire high-speed uniformity test machine, tests impact force and attenuation performance by using the impact strip, and evaluates impact resistance performance of a tire by using a coefficient of variation C.V of a peak-to-peak value RFpp or TFpp, so as to facilitate selection of a tire scheme and correlation research with a real vehicle comfort test result.

The invention discloses detection equipment for instrument and apparatus production, and belongs to the technical field of instrument detection, and the detection equipment comprises a placement cylinder, a rotating assembly is arranged on the lower side in the placement cylinder, a placement disc is arranged on the upper side of the rotating assembly, the placement disc is used for placing a to-be-detected instrument, and a sealing cover is slidably mounted on the upper side of the placement cylinder. A piston plate is slidably installed in the sealing cover, the size of the piston plate is matched with the size of the interior of the containing cylinder, an electric push rod used for pushing the piston plate to move is fixedly installed at the upper end of the piston plate, and an impact assembly is arranged at the lower end of the piston plate and comprises a sleeve fixedly installed at the lower end of the piston plate; according to the instrument impact testing device, impact testing can be conducted on the surface of an instrument through the arranged impact rod, the impact resistance of the instrument is judged, pressure can be given to the instrument through cooperation of the piston plate and the placement cylinder, and the pressure resistance and impact resistance of the instrument in a high-pressure environment are simulated.

The utility model relates to the technical field of material performance testing, and particularly discloses a drop hammer impact testing machine which comprises a supporting mechanism, a lifting mechanism is arranged on the supporting mechanism, a fixing mechanism for limiting materials is arranged at the bottom of the supporting mechanism, and the lower side of the lifting mechanism is connected with a grabbing mechanism. The grabbing mechanism is driven by the lifting mechanism to move up and down, when a supporting plate moves upwards, the upper end of an L-shaped clamping base makes contact with a conical pushing part, the conical pushing part pushes the L-shaped clamping base to move towards the two sides, the L-shaped clamping base is separated from a connector, the connector, a hammer body and a guide plate integrally fall down to impact materials, and then the supporting plate is put down by the lifting mechanism; the lower end of the L-shaped clamping seat makes contact with the upper side face of the connector, the connector pushes the L-shaped clamping seat to move towards the outer side till the L-shaped clamping seat is clamped on the connector, the L-shaped clamping seat is lifted upwards again to lift the whole guide plate, rapid clamping or loosening of the connector by the L-shaped clamping seat is achieved, and stability and convenience of connection of the connector are guaranteed.

The invention relates to the technical field of glass impact resistance testing, and discloses a multidirectional stress glass impact resistance testing device based on hydraulic servo loading, which comprises a rack, a hydraulic push rod is mounted on the rack, a lifting frame is slidably arranged on the rack, the telescopic end of the hydraulic push rod is connected with the lifting frame, and the telescopic end of the hydraulic push rod is connected with the lifting frame. A first glass clamp and a second glass clamp are installed on the machine frame. According to the invention, by integrating two test functions of drop impact and pendulum impact, comprehensive coverage of diversified impact types of glass is realized, and the system has the remarkable advantages that cross validation can be carried out by using multi-dimensional test data, the accuracy and reliability of impact resistance evaluation are greatly improved, and meanwhile, the application scene of a test result is widened.

The utility model discloses an impact hammer for testing an explosion-proof product, which comprises a support, symmetrical electromagnets are arranged at two ends of the back of the support, a bearing is arranged in the middle of the support, the bearing is provided with a bearing seat, the support is movably connected with one end of a connecting rod through the bearing, a hammer body is arranged at the other end of the connecting rod, and the hammer body is connected with the support. And a replaceable hammer head in the same direction as the electromagnet is arranged on the hammer body. According to the utility model, the electromagnet is fixed on a vertical tested object to carry out an impact test; the gyroscope sensor monitors the impact energy value of the hammer head, and the display displays the impact value, so that the impact energy of the hammer head can be conveniently and quickly adjusted on site by a user so as to adapt to different materials and test requirements. The impact hammer can be used for testing the surfaces of equipment shells with different roughness and different materials, is convenient to carry, is suitable for non-electric complete equipment which is large in size and weight and cannot be transported to a laboratory for testing, and is very high in practical value.

The invention relates to the technical field of automobile beam testing, in particular to a testing auxiliary mechanism matched with an automobile beam impact testing device, which is characterized in that a moving opening is formed in the surface of a testing table, a moving screw rod is arranged in the moving opening, a lifting groove is formed in the side surface of a moving plate, a storage groove is formed in the bottom of a moving pipe, and an auxiliary pipe is arranged in the storage groove; limiting openings are formed in the side faces of the moving pipes, impact balls are arranged in the moving pipes, and traction ropes are arranged on the surfaces of the impact balls. The device has the beneficial effects that the height of the impact ball in the moving pipe can be adjusted through the limiting supporting plate, so that the impact force of the automobile cross beam is conveniently changed by adjusting the height of the impact ball, and the problem that the impact force is inconvenient to change when an existing device works is solved; and the problem that the impact force of each time cannot be ensured to be the same during continuous testing is solved, so that the deviation of a detection result is not easily caused, and in addition, the problem of deviation of the impact ball can be avoided through the matching of the movable pipe and the auxiliary pipe.