26 results about "Drop tests" patented technology

The invention belongs to the field of aviation structure strength tests, and particularly relates to a testing machine pitching and rolling angle adjusting method and system for a full-aircraft drop test, and the method comprises the steps: adjusting the lengths of a front lifting rope l1 and a rear lifting rope l2 through a first servo motor; the lengths of the adjusted front lifting rope l1 and the adjusted rear lifting rope l2 are calculated through the cosine law according to the geometrical relationship; the lengths of the left lifting rope 13 and the right lifting rope 14 are adjusted through a second servo motor; and the lengths of the adjusted left lifting rope 13 and the right lifting rope 14 can be calculated through the cosine law according to the geometrical relationship. The pitching and rolling postures can be automatically adjusted, and the problems that an existing method is low in efficiency and poor in precision are solved. According to test experience, according to an existing posture adjusting method, replacement needs about half a day to one day every time, the number of times of putting every day does not exceed ten at most, and manual operation is needed on wings or a fuselage every time. And after automatic adjustment is achieved, the target can be achieved in several minutes through adjustment of the motor, efficiency is high, and safety is higher.

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 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 utility model discloses a drop test tool. The drop test tool comprises a rack, a material box, a drop mechanism, a pickup mechanism and a visual inspection mechanism, the material box is mounted on the rack; the falling mechanism is installed on the machine frame and provided with a clamping jaw, and the clamping jaw is located above the material box. The picking mechanism is installed on the rack, the picking mechanism is provided with a picking clamping jaw, and the picking clamping jaw can move between the material box and the clamping jaw; the visual inspection mechanism is installed on the machine frame and electrically connected to the picking mechanism. According to the drop test tool, the drop test of equipment can be automatically carried out, manual intervention is reduced, the large-scale and high-frequency test requirements are met, and the test efficiency is improved.

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.

The invention relates to a defect detection method and defect detection equipment. The defect detection method comprises the following steps: acquiring a standard TRS value S1; based on the standard TRS value S1 and a detection pressure value calculation formula, a detection pressure value F is obtained through calculation; applying detection pressure to the detection targets on the two supporting points according to the detection pressure value F, wherein a force application point is located between the two supporting points; wherein the calculation formula of the detected pressure value is F = (S1 * pi * d3) / (8 * L). Wherein d is the diameter of the target to be detected, and L is the distance between the two supporting points. According to the defect detection method, the transverse breaking strength is used as a standard for judging internal defects of the detection target, the standard TRS value S1 is converted into the detection pressure value F, and the force value is applied to the detection target. If the target is not fractured, it is indicated that the transverse fracture strength of the target can reach the standard TRS value S1, the target is a qualified product, the detection result is more reliable and stable compared with a drop detection method, and the probability of non-defective scrapping is lower.

The utility model relates to the technical field of cosmetic production, and provides a drop test device which comprises a lifting module, an angle adjusting module and a pneumatic clamping module, the angle adjusting module is arranged on the lifting module, and the pneumatic clamping module is arranged on the lifting module. The angle adjusting module is used for driving the pneumatic clamping module to adjust the horizontal angle, and the lifting module is used for driving the pneumatic clamping module to move and adjust in the height direction. Therefore, the effect of reducing the drop test error of the lipstick at different gradients can be realized.

The application relates to the technical field of electronic product detection, and discloses a quality detection method for dustproof electronic products. The dustproof performance of the electronic product to be detected is detected by placing the electronic product to be detected in a dustproof test box. The electronic product to be detected with qualified dustproof performance is placed on a drop test device to perform drop test. After one drop test, the electronic product to be detected is placed in the dustproof test box again to detect the dustproof performance of the electronic product to be detected. The above method helps the manufacturers to judge and adjust the workmanship and quality of different parts of the dustproof electronic products. In the drop test process, the two T-shaped clamps can perform free fall motion together with the electronic product to be detected. The electronic product to be detected is fixed during the falling process, so that the electronic product to be detected is prevented from deflecting. The impact point of the electronic product to be detected and the drop detection plate is consistent with the initially set impact point, so that the test precision can be greatly improved.

A method, apparatus, and system provide the ability to perform a drop test using a response surface. Inputs including a target safety factor (T-SF), a drop height, and a computer model, are acquired. An initial template is evaluated by computing a safety factor for a set of orientations, for each model point MP in the computer model across a set of times (t). A minimum safety factor is determined and a response surface for the model is generated. An actual safety factor SFm is generated by conducting a drop test simulation of the model based on a point having the minimum safety factor and a corresponding orientation. Consistency / validity of the actual safety factor is compared to the target safety factor and the model either passes or additional points may be added to the set of points and the process repeats based on an updated response surface.

The utility model discloses a kind of connecting structure in compliance with lever state drop test, comprising: at least three inserts, each the end of the insert is set as inverted cone;At least two bosses, the boss is located at the inverted cone end of insert, inverted cone groove is formed between adjacent two bosses, the connecting structure in compliance with lever state drop test, by the end of insert is set as inverted cone, and inverted cone groove is formed between boss, when frame body wraps inverted cone end of insert and boss, it will increase the connecting area and connecting point of frame body and insert, boss is embedded in frame body, form the connecting mode similar to mortise and tenon structure, make the combination of both more closely and firmly, the design of this multiple connecting point and larger connecting area can more evenly disperse external force, when being subjected to drop impact, force can be conducted and dispersed through multiple paths, thereby reducing the stress of single point at connecting place, reduce the risk of fracture at the connecting place of insert and frame body.

The invention relates to the technical field of steel ball drop test, and discloses steel ball accurate drop test equipment and a test method, the steel ball accurate drop test equipment comprises a base, the top of the base is provided with a protection part; and the protection component comprises a fixing plate, the bottom of the fixing plate is fixedly connected with the top of the base, a bearing table is fixedly connected to the surface of the fixing plate, a protective fence is fixedly connected to the top of the bearing table, and a protection frame is fixedly connected to the top of the fixing plate. The extrusion disc is in contact with the rolling rod frame during rotation, the rolling rod frame is pushed to rotate through the inclination of the extrusion disc and rotates towards the outer end of the circular plate at the same time, the rolling rod frame pushes the bent plates to move close to each other when rotating towards the outer end of the circular plate, and the steel balls are clamped when the bent plates move close to each other; and the lower surface of the bent plate is in contact with the lower surface of the steel ball and then holds the steel ball, so that the stability of clamping and fixing the steel ball by the bent plate is improved.

The invention provides a drop test device, which comprises a bracket, and further comprises a mounting frame which is arranged on the bracket in a lifting manner; the clamping assembly comprises a pair of clamping arms movably arranged on the mounting frame and a first driving structure for driving the clamping arms to perform horizontal clamping action; the inclination adjusting assembly controls the to-be-tested box body to rotate around a first axis and a second axis, the first axis and the second axis are horizontal, and horizontal projections of the first axis and the second axis intersect with each other. According to the invention, a large-size box body can be subjected to a drop test, the design requirement and difficulty of the clamp are reduced, the cost is reduced, the drop test is more accurate and comprehensive, the tolerance performance of the box body under various drop conditions can be evaluated, reliable data are provided for product design and quality control, and the product quality is improved. The step of taking the box body of the drop test equipment is reduced, the test efficiency is improved, and the failure rate of the equipment is reduced.

The utility model relates to the technical field of carton drop testing, and discloses a carton drop testing device which comprises a base, a stand column is fixedly installed on the upper surface of the base, a guide rail is arranged on the stand column in a sliding mode, a first screw is arranged on the stand column in a rotating mode, a first motor is arranged on the top face of the stand column, and a second motor is arranged on the top face of the first screw. Two clamping blocks used for clamping a carton are arranged on the guide rail in a sliding mode. According to the carton drop test device, the protection assembly is arranged on the base, so that during a carton drop test, a fixed protection plate, an auxiliary movable protection plate and a main movable protection plate in the protection assembly can form a protection cover body, an additional safety barrier is provided, and the risk of accidents in the test process is reduced; and articles in the carton can be prevented from being splashed out due to impact force, so that a tester can be protected from being injured by the splashed articles, and the accuracy and reliability of the test can be ensured.

The utility model provides a hanging device of a drop test machine, which comprises a base, the upper surface of the base is connected with a support, the upper surface of the support is provided with a rotating motor, the inner wall of the support is embedded with symmetrical bearings, the inner rings of the two bearings are jointly connected with a threaded rod, and the threaded rod is connected with a rotating shaft. The output end of the rotating motor is connected with the top end of the threaded rod through a bearing. According to the utility model, the threaded rod is driven by the rotating motor, the height of a sample can be adjusted, different drop height test requirements are met, the movable plate is pushed by the electric push rod to slide in the movable frame, the horizontal position of the sample can be adjusted, so that the drop position is adjusted, and the sample falls into the bearing bin, so that the pressure sensor is impacted; the impact force signal is collected in real time, and the digital processing of the control system is combined, so that the dynamic monitoring and storage of test data are realized, and the traceability and analysis efficiency of the result are improved.

The present invention relates to a device for performing a drop test, preferably for testing the landing gear of an aircraft, comprising a test stand, a sled for the controlled drop of a test specimen, and a base plate, wherein at least one means for digital measurement acquisition, preferably an optical measuring system, is provided, which is designed to perform a measurement of at least one property of the device and / or the test specimen during the drop test. Using the optical measuring system, additional information, for example regarding stiffness and deformation, can be acquired during the drop test itself, thus eliminating the need for additional tests to obtain this data.

This application provides a drop testing device and method for hollow blocks. The drop testing device for hollow blocks includes a clamping mechanism, a posture adjustment mechanism, a release mechanism, and an impact surface mechanism. The clamping mechanism includes at least two pairs of clamps, one of which is higher than the other. At least one of the at least two pairs of clamps operates to clamp hollow blocks in corresponding postures. The upper clamp in a pair is connected to the posture adjustment mechanism, which drives the upper clamp to move to a clamping position corresponding to the posture of the clamped hollow block. The lower clamp in a pair is connected to the release mechanism, which drives the lower clamp to release the clamp from the hollow block, allowing the hollow block to fall freely in its clamped posture. The impact surface mechanism is located below the clamping mechanism. This application provides strong traceability and an extremely short feedback cycle for the anti-breakage performance of hollow blocks.

The present application belongs to the technical field of watch testing, and particularly relates to a falling test device and a watch production line. The falling test device comprises a detection mechanism, a release structure, a material receiving platform arranged below the release structure and rotatably arranged around a preset axis, and a conveying structure arranged below the material receiving platform. The release structure is used to drive the material to move to a preset height and release the material, so that the material does free fall. The material receiving platform has a first position state and a second position state. When the material receiving platform is in the first position state, the material receiving platform is located in the falling path of the material and receives the material. When the material receiving platform is in the second position state, the material receiving platform is arranged at an angle with the conveying surface of the conveying structure, so that the material on the material receiving platform slides to the conveying structure under the action of gravity. The conveying structure conveys the material to a preset position. The detection mechanism is used to collect the image of the material at the preset position, so as to detect the falling state of the material. The present application can improve the production efficiency.

The utility model belongs to the technical field of drop test equipment, and particularly relates to a drum-type drop test machine which comprises a working box, and a controller is arranged at the upper part of the front side of the working box; the rotating shaft is rotationally assembled at the right upper part of the working box; square sliding grooves are formed in the sides, close to each other, of the two assembly boxes, the upper end and the lower end of the working frame extend into the two square sliding grooves correspondingly, openings are formed in the right sides of the two assembly boxes, and sealing doors are hinged to the interiors of the two openings; the second driving assembly is installed on the rear side of the working frame and used for driving the two assembling boxes to be close to or away from each other. The two impact force detection plates are fixedly installed on the inner walls of the sides, away from each other, of the two assembly boxes correspondingly. The two opening and closing sealing mechanisms are installed in the two assembling boxes correspondingly. The device is simple in structure and reasonable in design, can detect and record the impact force generated by each electronic impact during use, and is convenient for workers to accurately judge the anti-impact performance of a product.

The application discloses a double-arm drop tester, and relates to the field of drop tests, which comprises a double-arm drop tester body, a film test table arranged at the bottom, a fixing clamp suspended on the double-arm drop tester, and an adjusting unit arranged on the fixing clamp; a spherical bearing is fixedly arranged at the end of the fixing clamp; the adjusting unit comprises a spherical seat hinged with the spherical bearing, and an annular track fixedly arranged at the bottom of the spherical seat; three clamping arms for positioning workpieces are slidingly arranged on the annular track, and are respectively a first clamping arm, a second clamping arm and a third clamping arm. The double-arm drop tester simultaneously realizes the contraction locking of the adhering suction disc and the posture locking of the spherical bearing, and has a simple structure; the protective film presents a concave structure when moving downward along with the impact table, the concave protective film can buffer and gather the scattered parts, and the problem that the parts are scattered everywhere on the existing rigid test table and are difficult to collect and analyze is solved.

The application discloses a controllable horizontal speed scaled drop test method based on a pulley balance method, and belongs to the technical field of equipment air drop and spacecraft landing. The test system of the application comprises a pulley balance mechanism, an electromagnetic releaser, a scaled model, counterweight weights and a horizontal conveying belt. The pulley balance mechanism comprises a pulley set, connecting ropes, a test suspension frame and the counterweight weights. The pulley set is fixed to the top of the test suspension frame. The connecting ropes pass through the pulley set, one end of the connecting ropes is connected with the scaled model, and the other end of the connecting ropes is connected with the counterweight weights. The electromagnetic releaser is arranged at the weight end of the pulley balance mechanism, and the horizontal conveying belt is additionally arranged at the scaled model end. Through the regulation of the speed of the horizontal conveying belt, the scaled drop test under the condition of the equivalent simulation of gravitational acceleration and the coupling of horizontal speed is realized.

The invention belongs to the field of product drop testing, and particularly discloses a drop testing device and method.The drop testing device comprises a grabbing mechanism used for grabbing a product, the grabbing mechanism comprises a rotationally-arranged installation disc, a steel wire rope installed on the installation disc and a clamp installed on the steel wire rope, and the clamp is used for clamping the product; the mounting disc comprises a first disc part and a second disc part which are coaxially arranged, the outer diameter of the second disc part is smaller than that of the first disc part, a fixing position for fixing a steel wire rope is arranged on the end face of the side, facing the second disc part, of the first disc part, and the second disc part is used for winding and lifting the steel wire rope; a plurality of sets of pushing pieces are arranged on the first disc part in the circumferential direction of the first disc part, each pushing piece comprises a pushing block sliding in the axial direction of the first disc part, and the pushing blocks are used for pushing the steel wire rope wound on the second disc part out of the second disc part. By the adoption of the scheme, the problem that products or packages need to be manually placed on a bracket for operation in each time of testing can be solved.

The utility model relates to drop experiment equipment technical field, concretely for multi -angle drop test device, including base, the top of base is provided with lifting rod, both ends of lifting rod all carry out lifting action through vertical adjusting screw rod, the front side middle part rotationally connected of lifting rod has the turntable, the front side of turntable is installed with drop guide part, the front side of lifting rod is installed with locking part close to drop guide part department, and the end of locking part can lock the positioning of turntable. In this multi -angle drop test device, in the flexibility of angle adjustment, the side of turntable is provided with several clamping slots, and the locking part of clamping rod with spring is matched, can realize multi -angle rotation and accurate positioning of turntable, the device can be according to actual test demand, and after the turntable rotates to any angle, the locking is completed through the clamping cooperation of clamping rod and clamping slot, so that the measured piece carries out drop test with different inclination angles.

The present application relates to aerospace machinery technical field, it discloses a kind of multifunctional drop test device, it includes vertical test bench, test bench is provided with energy storage release system, drop system and load acquisition system from top to bottom;Energy storage release system is used to store potential energy for drop system and control release drop system, drop system includes separable outer frame and inner frame, landing buffer device is fixed in inner frame;Drop system is used to lock landing buffer device, and after energy storage release system releases drop system, when a certain height from ground, continue to fall by impact buffer support to prevent outer frame, complete unlocking to inner frame, inner frame and landing buffer device continue free fall, and collide with load acquisition system.Impact before the drop system of the present application and load acquisition system complete inner frame unlocking, the disturbance that landing buffer device is received when unlocking is small, and test reliability is high;It is convenient to carry out anti-inclination single leg or multi-leg drop test.

The utility model provides an automatic falling box which comprises a box body, a frame body is arranged in the box body, a feeding port and a discharging port are oppositely formed in the box body, a conveying device is arranged in the feeding port and the discharging port, a falling mechanism is arranged in the box body and corresponds to the upper portion of the conveying device, the falling mechanism comprises a lifting block, and the lifting block is arranged on the frame body. The side, facing the conveying device, of the lifting block is fixedly connected with an adsorption mechanism, a sensor assembly used for detecting moving equipment above the conveying device is arranged at the position, corresponding to the falling mechanism, in the box body, and the sensor assembly, the falling mechanism and the adsorption mechanism are all electrically connected with the same electric control board. According to the utility model, full-mechanical drop detection is realized, so that the human input is greatly reduced, and the situations of inaccurate detection, overlarge human input, easy fatigue of detection personnel and the like in the manual detection process are avoided.

The utility model provides a drop test bench. The drop test bed comprises a base plate, a stand column and a force measuring platform which are arranged on the base plate, a hanging basket bottom plate which ascends and descends along the stand column, a rail frame which is installed on the base plate, and a first environment chamber and a second environment chamber which are arranged on the rail frame in a sliding mode, and a clamp is arranged at the lower end of the hanging basket bottom plate. The force measuring platform is located beside the stand column, the first environment chamber and the second environment chamber slide close to each other or away from each other, and when the first environment chamber and the second environment chamber slide close to each other, the first environment chamber and the second environment chamber are in butt joint at the force measuring platform to form a closed box body. According to the utility model, the first environmental chamber and the second environmental chamber which are split are adopted, after the two environmental chambers are closed, a closed structure is formed outside the undercarriage, and different ladder temperature environments of-55 DEG C to 135 DEG C can be realized in the closed structure, so that the buffer characteristic of the undercarriage under extreme environmental conditions can be verified.