56 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 invention relates to a release device (1) for releasing an object suspended therefrom under load, in particular for drop tests, wherein the release device (1) comprises: two complementarily shaped clamping jaws (3a, 3b), wherein the clamping jaws (3a, 3b) are each rotatably mounted about a bearing (2), wherein the clamping jaws (3a, 3b) are designed to hold a release bolt (4) with the hanging object attached thereto in the closed state; and a toggle lever with two legs (5, 6), wherein the legs are connected at their common connection to a bearing bolt (7) and are connected at their respective outer connections (22a, 22b) to the clamping jaws (3a, 3b), wherein the toggle lever is designed to hold the clamping jaws (3a, 3b) closed without actuating force in an overextended configuration against a mechanical stop (10);wherein the toggle lever is configured to release the locking of the clamping jaws (3a, 3b) by a primary stroke (24) of the bearing pin (7) resulting from the overextension of the toggle lever beyond the dead center, corresponding to a secondary stroke (25), so that the clamping jaws (3a, 3b) transition to an open state and the hanging object is dropped. The invention further relates to a method for releasing a hanging object under load.

The utility model discloses a micro-drop testing machine, and relates to the technical field of micro-drop testing machines, the micro-drop testing machine comprises a workbench, the top of the workbench is fixedly provided with a protective cover, the outer wall of the protective cover is rotatably connected with a plurality of groups of box doors through hinges, and the top of the workbench is fixedly provided with a support rod. The beneficial effects of the utility model are that a to-be-tested product is placed between the two groups of clamping frames in the protective cover by opening the box door, then the box door is closed, components moving at a high speed and areas with potential dangers during operation are effectively shielded, and the to-be-tested product is clamped between the two groups of clamping frames by starting the cylinder through the control screen. And the servo motor drives the servo motor shaft to rotate, so that the position height of the cross beam is adjusted, the test requirements of various products are met, multiple groups of products are tested at the same time by arranging multiple groups of guide rods, air cylinders and clamping frames, and the test efficiency is further improved.

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 invention relates to the technical field of test equipment, and particularly discloses a turnover device and drop test equipment, the turnover device comprises a positioning mechanism, a turnover mechanism and a lifting driving member, the positioning mechanism comprises a first positioning assembly, a second positioning assembly and a supporting seat, the first positioning assembly is used for clamping or loosening two ends of a to-be-tested product in a first direction, and the second positioning assembly is used for clamping or loosening two ends of the to-be-tested product in a second direction; the second positioning assembly is used for clamping or loosening the two ends of the to-be-detected product in the second direction; the turnover mechanism comprises a turnover driving part and a turnover grabbing assembly in transmission connection with the turnover driving part, the turnover driving part can drive the turnover grabbing assembly to rotate, and the turnover grabbing assembly is used for grabbing or loosening the tested product; the lifting driving part is used for driving one of the positioning mechanism and the turnover mechanism to be close to or far away from the other one in the vertical direction, the to-be-tested product is positioned through the positioning assembly before and after the to-be-tested product is turned over, and it can be guaranteed that the position of the to-be-tested product grabbed by the turnover grabbing assembly is accurate; and the position precision of the overturned product to be detected is ensured to be reliable.

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 utility model belongs to the technical field of drop test, and particularly discloses a drop detection safety protection device which comprises a bottom table, a frame plate is installed on the outer side of the bottom table through bolts, an opening is formed in the front end of the frame plate, a protection door is arranged in the opening in a sliding mode, and a working platform is movably installed on the surface of the bottom table. A side plate is installed at the end of the rear portion of the working platform, a door opening mechanism and a path groove are arranged on the inner wall of the frame plate, a protruding column and a pushing column are arranged on the surface, close to the frame plate, of the side plate and matched with the path groove and the door opening mechanism correspondingly, and a driving mechanism is arranged in the bottom table. According to the utility model, when substandard objects are broken after a falling test, the driving mechanism drives the working platform to move forwards, and the working platform is in an inclined state after extending out, so that the cleaning and the maintenance are facilitated.

The application discloses a kind of introduction cable preform end assembly drop test device, including base;The bottom end of the both sides of the base is hinged with load-bearing plate by hinge;By operator sliding clamping plate A and horizontal crossbar backwards, it is fixed on the object plate, while the metal impact plate in the base is removed, and is clamped in the base;Subsequently, artificially take out the introduction cable preform, and lead out a section through between clamping plate A and clamping plate B, and make the section that it leads out adhere to the bottom of horizontal crossbar, then release hand, the end of introduction cable preform leads out will swing around the part that it is fixed in clamping plate A and clamping plate B under the action of gravity, and impact on metal impact plate under the action of inertial force;Relative to prior art, steel ruler is arranged in the device on the both sides of support frame, can ensure that the introduction cable drop height is consistent and adjustable, the result error of repeated test is relatively small, and the accuracy is guaranteed.

The utility model provides a device for a drop test of a battery of more than 50kg, which comprises a frame, a lifting rope rotating shaft is rotatably arranged in the middle of the upper end of the frame, a winch is arranged in the middle of one side of the frame, a lifting rope is bundled on the winch, one end of the lifting rope bypasses the lifting rope rotating shaft and is fixedly connected with a lifting hook, the lifting hook comprises a hook body, and the hook body is fixedly connected with the lifting rope. The upper end of the hook body is fixedly connected with a lifting rope, an opening is formed in the middle of the lower portion of the hook body, a wrench and a hook are contained in the opening, one end of the wrench is rotationally connected with the hook body, and the upper end face of the hook is an inclined face and forms an acute-angle tip. The wrench is in a horizontal state, a hanging rod is arranged on one side of the middle of the hook, and one side of the middle of the hook is rotationally connected with the hook body. According to the invention, the falling height and the impact position of each time can be consistent, and the accuracy of the subsequent test result and the safety of the detection operation process are ensured.

A drop test device for a micromechanical component. The drop test device includes a drop body having a shell and having an interior space for receiving at least one micromechanical component.

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.

This invention discloses a mechanical deployment device for wind tunnel free-drop tests, comprising: a base component, a drive component, and a trigger component; the base component, drive component, and trigger component are disposed inside the test model; the drive component is installed inside the base component and connected to the external attachment; one end of the trigger component is connected to the drive component, and the other end is installed on the test model. The mechanical deployment device for wind tunnel free-drop tests described in this invention has a stable and compact structure, high reliability, and is easy to use. It can achieve precise and stable deployment of external attachments, can be reused for different tests, and simultaneously improves efficiency and reduces costs.

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 invention relates to the technical field of drop test, and discloses a righting tool for a box body, a drop test device and a control method of the drop test device. The righting tool comprises a mechanical arm and a righting executing mechanism. The righting executing mechanism is movably arranged on the mechanical arm. The righting executing mechanism comprises a plurality of supporting claws and a plurality of righting discs. And the plurality of centralizing discs are movably arranged on the plurality of supporting claws in a one-to-one correspondence manner, and the plurality of centralizing discs are used for being attached to a plurality of surfaces of the box body respectively. The mechanical arm is used for driving the righting executing mechanism to move so as to drive the righting discs to move, and the mechanical arm is used for adjusting the position of the box body. According to the box straightening device, the mechanical arm drives the straightening executing mechanism to move so as to straighten the box, manual participation is not needed in the box straightening process, and safety is improved.

The invention relates to a drop test device for a micromechanical component comprising a drop body (100) with a shell (110) and with an interior (120) for receiving at least one micromechanical component (1).

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 utility model provides a drop test rack, belongs to the technical field of initiating explosive device performance testing, and mainly aims to simulate an accidental drop scene of a detonator in the carrying, loading and unloading processes. According to the main technical scheme, the drop test rack comprises a drop support, the drop support is provided with a hanging structure used for hanging a drop cylinder, the drop cylinder is connected with the hanging structure through a traction rope, and the drop cylinder is used for bearing an initiating explosive device to be tested; the pulling rope is connected with the falling clamp, and the falling clamp has a locking state in which the falling cylinder can be locked at a first operation position and a releasing state in which the falling cylinder can be released at a second operation position; one end, far away from the falling clamp, of the traction rope is wound on the winding device, and the winding device is used for winding and unwinding the traction rope so as to drive the falling clamp to be switched between the first operation position and the second operation position.

The invention relates to a hydrostatic test control index deduction method for a lengthened test section of a semiconductor cleaning water pipeline. The method is characterized by specifically comprising the following steps: S1, constructing a water balance conceptual model; s2, analyzing a qualified hydrostatic test physical content of the 1km test pipe section; s3, the allowable pressure drop test duration of the hydraulic test of the lengthened test section is deduced; s4, determining hydraulic test control indexes of the lengthened test section; for a water pressure test of a water delivery pipeline for a large-scale long-distance semiconductor, water pressure test auxiliary facilities such as a blind plate and a plug need to be additionally arranged along the pipeline according to the length not larger than 1 km, the water pressure test needs to be completed after each section of pipeline is laid, then follow-up construction is conducted, the construction period is discontinuous, and the construction progress is affected; the construction cost of a 1km pipe section hydraulic test project is up to 200,000 yuan; the lengthened test section is adopted for the hydraulic test, so that manpower and material resource expenditure can be greatly saved, and engineering cost is saved.

This application provides a testing method, apparatus, electronic device, and storage medium for a drop testing machine. The method includes: acquiring the theoretical time and test time of a package passing through a detection device during a drop test; processing the theoretical time and test time to obtain a deviation rate of the drop testing machine, the deviation rate indicating the error in the free fall of the package during the drop test; and determining a target deviation level of the drop testing machine in a deviation evaluation table based on the deviation rate, the target deviation level being used to adjust the drop testing machine. This method enables the detection of free fall of the package and allows for adjustment of the drop testing machine based on the deviation level, thereby improving the reliability of the drop test.

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 application provides a drop test assembly and a method for simulating attitude deflection angle and angular velocity of drop test, which first adopts three-point suspension of a test piece by a sling, and obtains the angular velocity of the test piece by gravity acceleration through a delay control unlocking method to unlock one of the slings; then uses a test piece attitude and angular velocity simulation parameter calculation method to obtain initial state parameters, delay control waiting time parameters and limit protection lock length parameters; according to the delay control unlocking method flow, the timing unlocking of the suspension cable release device and the overall suspension system release device is realized, and finally the drop test considering the test piece attitude deflection angle and angular velocity is realized; in addition, the limit protection cable is set and the limit protection lock length parameters are calculated to avoid the risk of test piece overturning in the delay control unlocking.

The invention relates to a power battery zero-drop test bench which comprises a mounting bottom plate, a rack and a control cabinet, the rack comprises a first stand column and a second stand column which are the same in structure, a lifting guide mechanism, a lifting mechanism, a drop mechanism and a secondary impact prevention mechanism are mounted in the first stand column, and the drop mechanism is arranged in the lifting guide mechanism. The falling mechanism is connected with the lifting mechanism, a secondary impact preventing mechanism is arranged at the lower end of the falling mechanism, the falling mechanism is provided with an auxiliary supporting frame, the auxiliary supporting frame is provided with a limiting piece, an E-shaped fork is arranged at the lower end of the secondary impact preventing mechanism, the E-shaped fork is provided with a transverse supporting plate, a falling bottom plate is arranged on the upper end face of the mounting bottom plate, and a falling avoiding groove is formed in the falling bottom plate; the first stand column and the second stand column which are the same in structure are integrated with a function module for a drop test, the test battery is prevented from inclining due to asynchronism, it is guaranteed that the test battery is only subjected to one-time real free fall impact, and the drop test of the power battery with the weight of 500 kg or even 1000 kg or above of L2000xD1500x H500mm is met.