1241 results about "Impact test" patented technology

A method and system for inversion of tire material parameters for wheel performance simulation. Based on a plurality of sets of test data obtained through tire radial rigidity and lateral rigidity tests, a tire radial rigidity and lateral rigidity test finite element simulation model is established, and error calculation is performed by comparing simulation results; and then the tire material parameters are optimized by optimizing a platform and combining results of error analysis, and a simulation process is circulated until the error is minimal, which is fitting of a test curve and a simulation curve. By using a neural network model, rapid inversion of the tire material parameters may be realized by using the neural network model only through non-destructive tire rigidity test data. The tire material parameters may be modified according to a large deformation process of a tire in a 90-degree impact test of a wheel.

The invention relates to the technical field of testing equipment, in particular to a ball durability detection device and method.The ball durability detection device comprises a bottom plate, and a reciprocating testing mechanism used for conducting abrasion resistance detection on balls is arranged on the front side of the top of the bottom plate. The plate switching mechanism switches different rebound plates, the impact test mechanism is utilized to impact the balls onto the rebound plates made of different materials, the impact resistance of the balls under the different rebound plates can be tested, the groups serve as control groups, the accuracy of test results is improved, and the test efficiency is improved. The ball is subjected to secondary clamping through the reciprocating testing mechanism, the clamping stability is improved, the angle of the friction testing plate is adjusted through the angle adjusting mechanism, the abrasion resistance of the ball at different angles is conveniently tested, the abrasion resistance testing results of the ball at different angles serve as a contrast, and the accuracy of obtained data is improved.

The utility model discloses a plastic pipe drop hammer impact test device and equipment. The plastic pipe drop hammer impact test device comprises a base; the guide part is arranged on the base and is provided with a vertical cavity; the test mechanism comprises a test board part, an impact part and a driving part, the test board part is arranged on the base and corresponds to the cavity, the driving part comprises a pulley assembly, a traction rope and a driving part, the pulley assembly is arranged on the guide part, and one end of the traction rope is connected with the driving part; the impact part comprises a release electromagnet assembly and an impact head assembly, the release electromagnet assembly is connected with the traction rope, the release electromagnet assembly is used for arranging the impact head assembly, and the release electromagnet assembly is suitable for adsorbing or loosening the impact head assembly. A test sample is loaded through the test board part, the pulley assembly ensures that the impact part moves vertically, the driving part controls the impact part to rise to the to-be-tested height, and the electromagnet assembly is controlled to be released, so that the impact head assembly freely falls, and the device is simple in structure, easy and convenient to operate and low in cost.

The present invention belongs to the technical field of impact tests, and particularly relates to a catapult take-off and arrested impact test apparatus, comprising a supporting frame, an auxiliary supporting and guiding apparatus above the supporting frame, a mounting base below the supporting frame, a servo actuator, an oil circuit system, and a control and measurement system. The oil circuit system comprises an oil source, a low-pressure accumulator group, a high-pressure accumulator group, an oil inlet valve block, an oil return valve block, a servo valve block, an oil source low-pressure oil return pipe, an oil source high-pressure oil outlet pipe, and necessary tubes among components. The control and measurement system comprises a vibration and impact loading upper computer, a vibration impact controller, a static loading upper computer, a hydraulic servo controller, a servo valve, and an accelerometer. The servo actuator is internally provided with a displacement sensor. The present invention can be widely applied to conventional vibration and impact tests of various suspension launch apparatuses in a suspension-mounted state, as well as arrested impact tests under composite waveforms.

The invention provides a swing impact test device for a sand bag of a seat backrest of a rail transit passenger car. The swing impact test device comprises a test bed, a support frame, a lifting assembly, a support cross beam and a swing impact assembly, the test bed is used for installing a seat, the lifting assembly is arranged on the supporting frame, the supporting cross beam and the supporting frame are arranged in a sliding mode, and the lifting assembly drives the supporting cross beam to move in a lifting mode; the swing impact assembly comprises a connecting beam, a swing arm, a pendulum bob, a pull rope and a pull driving source. The connecting beam is connected with the supporting cross beam, the swing arm is hinged to the connecting beam, the pendulum bob is connected with one end of the swing arm, and the pull rope is connected with the other end of the swing arm. And the pull driving source pulls the pull rope, so that the pendulum bob impacts the backrest of the seat. According to the invention, impact tests can be conveniently carried out on different heights of the seat backrest.

The present invention provides a flow diversion device based on a one-way water pool, which relates to the field of ship engineering technology, and solves the technical problem that a physical model will cause wave damage in a one-way water pool in a wind and wave test, resulting in inaccurate experimental data. The flow diversion device includes a physical model, a lifting device, a flow diversion device and a water pool; the water pool has a first pool bottom and two oppositely arranged pool side plates, and the two pool side plates and the first pool bottom are arranged in a U-shaped structure; the lifting device is used to change the height of the physical model in the water pool; one end of the flow diversion device is hinged to one side of the incoming flow direction of the physical model, and the other end is slidably arranged on the first pool bottom of the water pool; when the physical model has a preset height from the first pool bottom of the water pool, the flow diversion device guides the incoming flow from the first pool bottom of the water pool to the physical model. The flow diversion device ensures that the physical model will not cause wave damage during the wind and wave impact test, thereby ensuring the accuracy of the experimental data.

The invention discloses an oil return buffer device and an impact test system with the same. The oil return buffer device comprises a cylinder barrel assembly, a buffer piston, an impact piston, an overflow detection loop, an oil charge detection loop and an air charge detection loop. A first inner barrel cavity, a damping hole and a buffering cavity are formed in the cylinder barrel assembly, and the buffering cavity is connected with an oil filling detection loop. The buffer piston is arranged in the first inner cylinder cavity so as to divide the first inner cylinder cavity into a first side cavity and a second side cavity. The buffer piston is provided with a second inner cylinder cavity, the impact piston is arranged in the second inner cylinder cavity to divide the second inner cylinder cavity into an oil return cavity and an air cavity, the oil return cavity communicates with the first side cavity, and the air cavity communicates with the inflation detection loop. The device has the obvious impact stage and the buffering stage, the instant impact pressure is rapidly reduced in the impact stage, the deceleration back pressure is obtained through oil pressure loss in the buffering stage, the buffering effect is obvious and easy to control, and the device is suitable for the field of high-speed large-flow oil return buffering of an impact hydraulic system.

The invention provides a large-angle zero-gravity seat damage risk assessment method, and the method comprises the following steps: S1, collecting the pressure and comfort data of a dummy at different angles and under different supporting point configurations through an experiment, and building a dummy simulation model suitable for a large-angle zero-gravity seat; s2, on the basis of the dummy simulation model of the large-angle zero-gravity seat, vehicle collision and impact tests are added, acceleration and impact force data under different seat adjusting angles are obtained, a large-angle zero-gravity seat passenger injury prediction simulation model is established, and therefore a injury prediction value is obtained; and S3, calculating a damage risk score according to the damage predicted value.

The invention belongs to the field of bird impact tests, and relates to a bird impact test device for simulating a real engine, which comprises a gas gun, a first ejection plate, a second ejection plate, a first fixed bracket, an air inlet casing and a second fixed bracket, the first ejection plate and the second ejection plate are arranged front and back, and the first fixing support and the air inlet casing are both located behind the second ejection plate; the air inlet casing is installed on the first fixing support. A fan casing is fixed on the second fixed bracket; by arranging a first ejection plate, a second ejection plate, a fixing support for simulating the influence of a first simulation fan blade on a fan casing and a component unit body after being impacted by a bird, an air inlet casing and a second fixing support, the ejection impact effect of an air inlet channel on a bird body is simulated, the process that the bird body impacts an air inlet supporting plate is simulated, and the bird body can be effectively simulated under the condition that the space is limited. And the change of the bird body motion trail and the cutting deceleration effect of the air inlet support plate on the bird body are effectively simulated, so that the capability of the engine for bearing the bird body impact is accurately evaluated.

The invention provides a multivariate numerical analysis method and system based on a TEHB test system, and the method comprises a multidirectional synchronous impact test numerical simulation step: building a rock numerical model with a real mineral structure and breakable mineral crystals, and constructing a single-axis bidirectional synchronous impact test simulation frame, the multi-directional synchronous impact test simulation module is used for implementing multi-directional synchronous impact test numerical simulation on the rock numerical model; a dynamic response index calculation step: separating and recombining the incident wave signal and the reflected wave signal obtained by monitoring, and obtaining a dynamic response index of the rock numerical model in the impact process; and a multi-element parameter intelligent analysis step: during numerical simulation of the multidirectional synchronous impact test, displaying spatial distribution characteristics of different types of cracks in real time, and realizing intelligent microscopic analysis of crack evolution, rock damage and energy characteristics. According to the invention, the dynamic mechanical behavior of the rock under the impact load can be simulated, and the real-time fracture information in the rock can be displayed more visually.

A two-point excitation air cannon impact test system, comprising two air cannons (38, 39), a supporting structure, a resonator plate (37), spacer blocks (36) and a test tool (35). The air cannons (38, 39) each comprise an air path integrated system and a synchronous controller; the resonator plate (37) is fixedly connected to the supporting structure; the test tool (35) is fixed on the resonator plate (37) by means of the spacer blocks (36); the two air cannons (38, 39) are respectively located directly below the test tool (35); the two air cannons (38, 39) are respectively pressurized by means of the air path integrated systems; the pressurizing process of the air path integrated systems can ensure that the two air cannons (38, 39) release completely the same pressure; and the synchronous controllers control the air cannons (38, 39) to synchronously drive projectiles in the air cannons to impact the resonator plate (37), so as to form the two-point excitation air cannon impact test system.

The invention relates to the technical field of performance evaluation, in particular to an inhaul cable test piece performance evaluation method and system under the low-speed impact condition, and provides the following scheme that stress data are obtained through a drop hammer impact test, and the maximum load and anchoring performance are calculated through a data analysis model; integrating and optimizing the evaluation data through the quantitative relation model; according to the method, the overall mechanical property of the inhaul cable under the low-speed impact condition can be comprehensively analyzed, the accuracy and applicability of an evaluation result are ensured from multiple aspects such as dynamic response, anchoring stability and energy absorption efficiency through a multi-layer data analysis model, and the safety requirements in different engineering applications are met.

The invention belongs to the field of unmanned aerial vehicle safety, and particularly relates to an unmanned aerial vehicle high-speed collision body safety evaluation test device, which comprises a collision protection cabin, a speed measurement device, a sabot separation mechanism, a special-shaped gun barrel, a rapid bomb loading device and a gas storage tank, the special-shaped gun barrel is cylindrical and horizontally arranged, the impact protection cabins are arranged on the outer side of the output end of the special-shaped gun barrel at intervals, and the speed measuring device is arranged between the impact protection cabins and the output end of the special-shaped gun barrel. The high-speed impact test of the unmanned aerial vehicle is realized by adopting the special-shaped gun barrel and the integrated sabot separation mechanism and adopting the 400mm large-diameter gas gun impact test device to accelerate the unmanned aerial vehicle to a specified speed, so that the reliability of a test result is ensured, and the test cost and the test difficulty are also remarkably reduced. Meanwhile, the method has wide applicability, can be used for the unmanned aerial vehicle, and is also suitable for impact damage evaluation of an object of 2 kg or above at the speed of 150 m / s.

The invention provides a wallboard impact test device and test method for simulating a dampening load, and belongs to the field of bearing performance tests. Comprising a dampening wave impact load simulation loading module, a test wall plate is fixed through a test clamp tool module, and in the test impact process, obtained real-time monitoring data are sent to a controller of the dampening wave impact load simulation loading module through a test measurement module so as to complete closed-loop control of dynamic loads when dampening wave impact is simulated; the dampening wave impact load simulation loading module comprises a controller, a hydraulic power unit and a loading unit, and the controller compares experimental data of a dampening wave impact load real experiment with real-time simulation data obtained by the test measurement module, converts an obtained difference value into an electric signal and sends the electric signal to the hydraulic power unit; electric signals are converted into pressure loads through the hydraulic power unit, and actions are executed by the loading unit. According to the invention, the simulation effect of a real dampening wave-colliding service scene can be achieved.

The invention discloses a cold and hot impact test method and system for synchronously applying multi-dimensional stress, and relates to the technical field of material tests.The method comprises the steps that space time temperature distribution of a test material in the cold and hot impact process is obtained, and a thermal stress field is established; superposing the external mechanical stress field and the thermal stress field to obtain a comprehensive stress field, coupling thermal stress and mechanical stress, and calculating comprehensive strain; and acquiring real-time monitoring data of the test material in cold and hot impact and multi-dimensional stress environments, calculating an experiment monitoring index, performing threshold judgment, and when the experiment monitoring index is greater than a preset threshold, performing accumulative analysis on the test material, outputting an accumulative damage measure, and completing the test. By comprehensively considering the superimposed effect of mechanical stress and thermal stress, damage accumulation in a multi-dimensional stress environment is monitored in real time, and the fatigue life and the potential failure mode of the material are scientifically predicted through a multi-factor coupling damage assessment method, so that the accuracy of reliability assessment of the material is improved.

The invention discloses a method for reducing an angle measurement error of a fiber-optic gyroscope under a launching load. The method comprises the following steps: establishing a full-gun finite element dynamic model; correcting dynamic model parameters based on the seat ring test acceleration data; establishing a fiber-optic gyroscope mounting platform angular acceleration response maximum pulse value and pulse width prediction model taking a firing angle as an input variable by adopting an approximate modeling technology, and predicting the fiber-optic gyroscope mounting platform angular acceleration response maximum pulse value and pulse width corresponding to firing data; establishing a three-axis fiber-optic gyroscope zero offset increment prediction model under a half-sine angular acceleration impact load by adopting an angular impact test platform calibration method, and predicting the fiber-optic gyroscope zero offset increment corresponding to the obtained maximum pulse value and pulse width; and compensating the zero offset error of the fiber-optic gyroscope according to a zero offset increment prediction result before emission. According to the invention, the angle measurement precision of the fiber-optic gyroscope in a launching impact environment is effectively improved.

The invention discloses an elevator performance detection method based on video analysis, and relates to the technical field of elevator detection.The method comprises the steps that elevator polyurethane buffer construction information is obtained, and multi-view-angle sensing equipment is configured; performing an impact test on the buffer, and collecting synchronous test video data; multi-dimensional characteristic values such as deformation, stress strain and dynamic response are extracted based on characteristic engineering; in combination with pre-marked test data, constructing a machine learning judgment model taking the three types of features as input; and inputting the characteristic values to the model to realize automatic and accurate judgment on the quality condition of the buffer, and outputting a detection result containing physical performance and qualification judgment. The technical effects of improving the inspection accuracy, enhancing the inspection precision and improving the inspection efficiency are achieved by constructing a set of complete inspection process from video acquisition, preprocessing, feature value extraction, judgment, result output and report generation.

The invention discloses a cold and hot impact test device and method for an automobile electronic component, and belongs to the technical field of cold and hot impact test equipment.The cold and hot impact test device for the automobile electronic component comprises an experiment box, a mounting column is rotationally arranged in the experiment box, and six partition plates are evenly distributed on the mounting column in the circumferential direction; the ends, away from the mounting columns, of the partition plates make movable contact with the inner wall of the experiment box, the six partition plates divide the inner space of the experiment box into a thermal shock test area, a first buffer area, a second buffer area, a cold shock test area, a third buffer area and a fourth buffer area, a thermal shock assembly is arranged on the experiment box, and a cold shock assembly is arranged on the experiment box. An intermittent rotating assembly connected with the mounting column is arranged at the bottom of the experiment box, a placement assembly is arranged between every two adjacent partition plates, a clamping assembly used for fixing an electronic component body is arranged on each placement assembly, and the rapid thermal shock cycle test device has the advantages of being effective in placement, stable in clamping, rapid in thermal shock cycle test, stable in structure and convenient and fast to operate.

The invention provides a three-axis six-direction impact test simulation method and system based on an F-DEM, and the method comprises the steps: building a full-size model frame, coupling the F-DEM, carrying out the dynamic solving of a model, and carrying out the post-processing of automatic data. The invention further provides a triaxial six-direction impact test simulation system based on the F-DEM, a three-dimensional full-scale numerical model is established based on basic parameters of a waveguide rod and a rock sample in a TEHB test system, and the three-dimensional full-scale numerical model comprises a discrete element rock sample model and a finite element waveguide rod model. According to the method, efficient coupling modeling of the finite element waveguide rod and the discrete element rock sample is achieved, the method has good stress wave propagation precision, the dynamic response behavior of the rock sample under triaxial six-direction loading can be accurately simulated, and efficient and verifiable technical support is provided for impact response analysis and engineering application research of the rock mass in a complex stress environment.

The invention discloses a confining pressure and temperature coupled Hopkinson bar impact test device and method, and belongs to the field of rock mechanics test devices, and the confining pressure and temperature coupled Hopkinson bar impact test device comprises a Hopkinson bar, a confining pressure and temperature loading device system, a steam generation device and a liquid nitrogen low-temperature device. The temperature and confining pressure combined loading device provided by the invention can realize combined loading of confining pressure and high temperature (normal temperature to 200 DEG C) and confining pressure and low temperature (normal temperature to-40 DEG C) of rocks, and meanwhile, the system can realize high-temperature and low-temperature repeated circulation effect on the rocks, namely, the rocks are heated to 200 DEG C by using a steam generation device firstly, and then are heated to 200 DEG C by using a steam generator; if natural cooling to normal temperature is actually carried out, at least four hours are needed; when the liquid nitrogen low-temperature system is used, the rock can be cooled to the normal temperature from 200 DEG C within 20 minutes, and if the liquid nitrogen low-temperature system is continuously used, the rock can be cooled to-40 DEG C. At present, no system can realize simultaneous loading of confining pressure, high temperature and low temperature, and repeated temperature rising and cooling.

The invention discloses a flexible protective net multi-angle impact resistance test platform, a design method and a test method, and belongs to the field of flexible protective net performance tests.The flexible protective net multi-angle impact resistance test platform comprises two oppositely-arranged reaction walls, a flexible protective net arranged between the two reaction walls, hoisting equipment arranged above the flexible protective net and a monitoring analysis mechanism; a plurality of positioning holes arranged in a rectangular array are formed in the opposite sides of the two reaction walls, and the positioning holes in the two reaction walls are aligned one by one in the horizontal direction; the flexible protective net is composed of transverse steel strands and longitudinal steel strands, and the two ends of the longitudinal steel strands penetrate through the positioning holes in the two reaction walls respectively and then are fixed to the ground through ground anchors. By adopting the multi-angle impact resistance test platform for the flexible protective net, the design method and the test method, a vertical impact test or an inclined impact test can be carried out on the flexible protective net by utilizing the scientifically designed test platform, and the use is more flexible.

According to the device for detecting the thermal shock resistance and accident resistance of the material, lifting equipment is arranged on a supporting frame and is used for driving a heavy hammer to move; the electromagnet is installed on the supporting frame and arranged above the heavy hammer. The base is fixedly installed at the bottom of the supporting frame. The driving rod is slidably mounted on the base, and the heavy hammer presses the driving rod to move when falling down; the driving shaft is rotationally mounted on the base; when sliding, the driving rod drives the driving shaft to rotate through the linkage mechanism; the impact test bar is replaced according to an actual working condition needing to be simulated and is fixedly mounted on the driving shaft; the clamp is mounted on the base to clamp a material test block; when the driving shaft rotates, the impact test bar generates friction on the material test block; the heating coil is driven by telescopic equipment mounted on the support frame to move and is used for heating the impact test bar; the water spraying equipment is mounted on the supporting frame and used for spraying water to the impact test bar; contact type thermal shock in an actual production environment is simulated in a mode that the impact test bar repeatedly rubs the material test block.

The present invention relates to a cylindrical battery cell impact test method and cylindrical battery cell impact test device therefor, the method including the steps of placing a side surface of a cylindrical battery cell on a base portion, placing a metal rod on an upper portion of the side surface of the cylindrical battery cell, and dropping a weight onto the metal rod, in which a magnetic portion on the outer surface of the metal rod is placed so as to come into contact with the side surface of the cylindrical battery cell.

The invention provides a bird body collecting device for engine bird impact test speed calibration, which comprises a mounting bottom plate and a buffer collector, and is characterized in that the collector comprises a collecting guide pipe, and the guide pipe comprises a vertical section, a bent section and a horizontal section which are communicated in sequence; a buffer assembly is arranged at the bottom of the vertical section and fixed to the bottom plate, and a bird body divider is arranged at an opening of the horizontal section. The front cabin is fixedly connected with the opening of the horizontal section, a speed monitor and an electromagnetic switch device are arranged in the front cabin, an anti-splashing cabin door is arranged at the inlet end of the front cabin, the electromagnetic switch device is connected with the anti-splashing cabin door, and the speed monitor is used for monitoring the flight speed of a bird body and is connected with the electromagnetic switch device; when the speed signal is monitored, the electromagnetic switch device is triggered to control the anti-splashing cabin door to be closed. The device has the advantages of miniaturization, automation, good buffering effect, easiness in operation and the like, and solves the problems of large bird impact, difficulty in residue collection and the like during bird speed calibration.

The invention discloses an impact resistance test device for a marine diesel engine. The impact resistance test device comprises an impact resistance test bed, the upper end of the shock resistance test bench is connected with the test base; a plurality of vibration isolators are mounted on the test base, and anti-impact machine legs, fixedly connected with the bottom of a diesel engine, at the upper ends of the vibration isolators are connected with an impact hammer and are arranged on the outer side of the impact test bed for impacting the impact test bed; the data acquisition instrument is in circuit connection with the upper computer; and the data acquisition instrument is in circuit connection with an ECU (Electronic Control Unit) of the diesel engine, the external fuel pump and the pneumatic motor. The impact force borne by the diesel engine in the operation state when a ship is subjected to explosion impact is simulated on the land, and the working performance of the diesel engine can be detected when the diesel engine is subjected to impact resistance. And accessory equipment connected with the diesel engine is not arranged on the test bed and is flexibly connected with the diesel engine, so that the reliability is high, the device can be repeatedly used, and the test cost is reduced.

The invention belongs to the technical field of wearable electronic products, and discloses impact simulation equipment and an impact test method. The impact simulation equipment comprises an impact table and a release device, the release device comprises a workbench frame, a rotating shaft, a connecting assembly and a swing rod, the connecting assembly comprises a shaft fork and a vertical shaft arranged on the shaft fork, the rotating shaft is rotatably arranged on the workbench frame, the shaft fork can rotate around the axis of the vertical shaft, the vertical shaft is vertically connected to the rotating shaft, and the swing rod is arranged on the shaft fork. A tested product can be fixed on the swing rod, the swing rod can rotate around the axis of the swing rod for adjustment, and the swing rod can rotate around the axis of the rotating shaft under the action of gravity to drive the tested product to collide with the collision table. According to the impact simulation equipment, the tested product is adjusted by rotating or rotating the swing rod, so that the tested product can impact the impact table at any position and angle, the impact between the tested product and the ground can be accurately simulated when a user dynamically falls down, and the test accuracy and reliability are greatly improved.

The invention discloses a method for completing a battery pack bottom test based on a linear motor ejection impact ball head, and the method comprises the steps: placing a to-be-tested battery pack on a battery pack bottom ball strike test bench, and enabling a power device of a bottom impact test device to drive the impact ball head of the battery pack bottom ball strike test to impact the battery pack from the bottom of the to-be-tested battery pack; the power device is a linear motor, the impact ball head is installed at the head of the linear motor, the impact ball head is driven by the linear motor, the battery pack is impacted from the bottom of the battery pack according to the impact force and the impact mode required by the bottom ball strike test of the battery pack, and the bottom ball strike test of the battery pack to be tested is carried out. According to the invention, an impact ball head driving mode of a battery pack bottom ball impact test is changed into a linear motor driving mode so as to determine the speed and the energy impact direction designated position, and compared with the existing spring, pneumatic and other emission modes in the industry, the energy control precision is higher, the repeatability is good, the adjustment and control are convenient, and the operation is simple.

The utility model discloses an electric tool battery pack impact test device, which relates to the field of battery testing and comprises a test board, a placement groove is formed in the top of the test board, an installation groove is formed in the test board, and a supporting assembly corresponding to the placement groove in position is movably installed in the installation groove. A protection frame located on the outer side of the containing groove is fixedly installed at the top of the test table, and a fire extinguishing water tank located below the containing groove is placed at the bottom of the test table. According to the utility model, the battery pack is placed above the supporting assembly in the placing groove, and the supporting assembly is used for supporting the battery pack and clamping and fixing the battery pack from the side surface; the impact adjusting assembly detects temperature change through the supporting assembly and controls the supporting assembly to be opened when the battery pack is tested to be on fire, so that the battery pack falls into the fire extinguishing water tank through the placing groove for rapid fire extinguishing, and therefore the device is safer to operate and better in practicability.

The utility model discloses a furniture drop test device. The furniture drop test device comprises a base; the cross beam is arranged above the base, a plurality of guide wheels are arranged on the outer side of the cross beam at equal intervals, a steel wire rope is wound on the outer sides of the guide wheels, and one end of the steel wire rope is fixedly connected with a lifting plate; the assembly plate is clamped at the bottom of the lifting plate, two fixing clamps are rotatably arranged at the bottom of the assembly plate, and the assembly plate is used for clamping furniture and carrying out an impact experiment. The equipment has the beneficial effects that the equipment can carry out a falling test and an impact test on the furniture, and various physical impacts, such as falling and impact, possibly encountered by the furniture in actual use can be simulated; real test data can be provided to help to improve the product quality, multiple purposes are realized, the equipment can be more widely applied to various test requirements due to multiple functions, and the space and the cost are saved; through cooperative use of the bidirectional lead screw and the driving motor, the position of the clamping plate and the height of the lifting plate can be accurately controlled, and accurate execution of an experiment is ensured.

The invention belongs to the technical field of optical glass, and discloses an impact test device for manufacturing optical glass, which comprises a bearing platform, a guide assembly mounted on the bearing platform, a support assembly arranged on the guide assembly, and an impact test assembly arranged on the support assembly, the protection assembly is mounted on the supporting assembly; a steel ball vertically falls to impact optical glass, two supporting assemblies are pushed to move oppositely in the falling process, a movable frame moves to the vertical end along a guide groove through a connecting piece, and at the moment, the movable frame and a supporting roller rod move oppositely along the lower end of the guide groove under the action of a second tension spring; the distance between the two supporting roller rods is shortened by rotating the two supporting roller rods, the two supporting roller rods move downwards and the distance between the two supporting roller rods is shortened in the rebounding process of the steel ball, the steel ball is supported through the two supporting roller rods, the situation that the steel ball rebounds and secondarily impacts optical glass is avoided, and therefore the accuracy of the optical glass impact test is guaranteed.