81 results about "Ball impact" patented technology

A chest protector may include a flexible panel configured to generally conform to a user's chest and abdominal regions, one or more retention elements connected to the flexible panel and positioned to hold the chest protector on the user, and one or more high-friction elements positioned on an anterior outer surface of the flexible panel, the one or more high-friction elements configured to reduce angular momentum, or change rotation, of a ball impacting at least one of the one or more high-friction elements. The high-friction elements may include elements of tacky material, such as one or more dots or other elements of tacky material.

The invention discloses a method for testing the impact resistance of a power battery and related equipment, and relates to the technical field of safety performance evaluation of the power battery, and the method comprises the steps: configuring the height parameters of a ball head and a falling ball in a falling ball impact test device based on the size of the power battery and a preset test standard; after a measurement module in the falling ball impact test device is calibrated, the ball head is released based on the falling ball height parameter; the data acquisition module is used for acquiring data to obtain a first time curve and a second time curve, the first time curve is used for representing a time-varying curve of dynamic impact force generated when the ball head impacts the power battery, and the second time curve is used for representing a time-varying curve of dynamic impact force generated when the ball head impacts the power battery. The second time curve is used for representing a curve that the deformation quantity of the surface of the power battery changes along with time under the impact action of the ball head; and obtaining a test result of the impact resistance of the power battery based on the first time curve and the second time curve.

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 invention relates to an experimental falling ball impact device which comprises a base and a lifting mechanism, the lifting mechanism comprises a lifting platform, a synchronous belt and a lifting servo motor, a transmission shaft of the lifting servo motor is in transmission connection with the synchronous belt, and the lifting platform is fixedly connected with the synchronous belt. The lifting platform is provided with an infrared distance sensor and a horizontal transverse mechanism, the lifting servo motor controls the lifting platform to move up and down, symmetrical intercepting mechanisms are arranged on baffles on the two sides of the base, and the horizontal transverse mechanism is located below the lifting platform. The horizontal transverse mechanism is provided with an X-direction servo motor, a Y-direction servo motor, an electromagnet and a laser drop point indicator, and the transverse mechanism is used for moving the electromagnet in the X direction and the Y direction. According to the device, the falling ball position and the falling ball height can be automatically adjusted, secondary falling balls can be intercepted, it is avoided that secondary impact influences experiment data, and the accuracy of the experiment data is guaranteed.

A system for predicting a resting position of a golf ball may use ball tracking sensor data to identify an impact location of the ball. Modeling of ball movement following impact may be performed that incorporates measured ball impact physics, impact coordinates, and material properties of ground or objects to which the impact coordinates correspond and, together with historical shot data corresponding to the impact coordinates or an encompassing zone, bounce and roll behavior and / or final resting position predictions may be generated.

A system for predicting a resting position of a golf ball may use ball tracking sensor data to identify an impact location of the ball. Modeling of ball movement following impact may be performed that incorporates measured ball impact physics, impact coordinates, and material properties of ground or objects to which the impact coordinates correspond and, together with historical shot data corresponding to the impact coordinates or an encompassing zone, bounce and roll behavior and / or final resting position predictions may be generated.

A ball used for certain practice and sporting events for the game of pickleball where the ball comprises a plastic outer shell having at least one opening where the openings or coatings may include dampening properties that reduce the noise when the ball impacts a paddle, or the court surface / ground. The ball may be spherical, hollow shell ball with at least one opening. The ball may have at least one opening where the shape of the opening comprises a hole with a slot intersecting the hole. Also, the openings in the ball may have tapered edges, rounded and / or stair stepped edges. Also, the exterior of the ball may have a dampening tape or coating applied to the interior or exterior of the ball.

The embodiment of the invention discloses an aluminum oxide ball impact resistance testing system and method, and relates to the technical field of material performance testing. The method comprises the following steps: acquiring a response image sequence of an alumina ball sample in an impact process and pressure data generated by contact between the alumina ball sample and an impact target surface in the impact process; performing feature extraction and deformation analysis on a target image frame in the response image sequence to obtain first test response data; under the condition that the first test response data indicates that the alumina ball sample is elastically deformed, estimating the energy absorption amount of the alumina ball sample in the impact process according to the pressure data to obtain second test response data; and adjusting the impact force based on the second test response data, carrying out testing again by using the adjusted impact force, and ending the testing until the first test response data corresponding to the adjusted impact force indicates that the alumina ball sample has plastic deformation, so as to obtain an impact force resistance test result corresponding to the alumina ball sample.

The invention relates to a training wall for ball games, designed to be sufficiently stable to withstand high dynamic ball impacts while simultaneously providing multiple players with playing areas (5) of different levels of difficulty. This is achieved by a structure comprising a rebound wall (1) and two side walls (2) arranged in parallel and perpendicular to the rebound wall (1), together forming an H-shaped configuration. This arrangement not only ensures structural stability but also creates two separate playing areas (5) located on opposite sides of the rebound wall (1). Each of these playing areas (5) may be provided with rebound surfaces (3) of differing difficulty levels, allowing players of various skill levels to train simultaneously while maintaining consistent rebound dynamics and stability of the overall structure.

A system for predicting a golf ball's rest position can use data from a ball-tracking sensor to identify a ball impact location, perform a modeling of the ball's post-impact motion incorporating measured ball impact physics, impact coordinates, and material properties of the ground or object corresponding to the impact coordinates, and, in conjunction with historical shot data corresponding to the impact coordinates or containment zone, generate a prediction of the bounce and roll behavior and / or final rest position.

The present application provides a polypropylene composite material, a preparation method therefor, and use thereof. The polypropylene composite material comprises a prepreg fabric and a first polypropylene layer laminated in sequence; in parts by weight, the first polypropylene layer comprises 15-60 parts of a first polypropylene resin, 15-25 parts of a first piperazine flame retardant, 5-15 parts of a first nitrogen-phosphorus composite flame retardant, 0.1-2 parts of a first synergistic flame retardant, and 5-30 parts of long glass fibers. In the present application, the polypropylene composite material has both good ablation resistance and low post-ablation deformation, and at the same time, the polypropylene composite material has a high flame retardancy rating and good falling ball impact resistance.

The utility model discloses a falling ball impact testing machine, which relates to the field of impact testing machine structures, and comprises a fixed seat, a fixed part platform is arranged on the fixed seat, a lifting device is also arranged on the fixed seat, the lifting device is connected with a test piece, the test piece comprises a falling ball, and the falling ball is arranged above the fixed part platform; a moving device is arranged between the firmware platform and the fixed seat; a clamp is arranged between the firmware platform and the test piece, and the clamp can clamp the falling ball which falls and rebounds; according to the falling ball impact testing machine, the clamp is arranged above the to-be-tested sample, so that the falling ball can be quickly and safely captured after being impacted and bounced, secondary impact of the to-be-tested sample is avoided, and the accuracy of an impact test result is improved.

The utility model discloses a falling ball impact test device, comprising a chassis which is horizontally arranged; the bracket beam is horizontally arranged above the chassis; the falling cylinder is arranged on the support beam, the falling cylinder is of a cylinder body structure with a vertical axis, the cylinder wall of the falling cylinder is provided with a putting-in opening, the top end of the falling cylinder is provided with a laser emitter, a laser beam generated by the laser emitter towards the chassis is coaxial with the falling cylinder, and an impact ball with the same inner diameter as the falling cylinder can be put into the falling cylinder from the putting-in opening. According to the device, the laser emitter and the falling cylinder are coaxially mounted, and a laser beam generated by the laser generator vertically irradiates an impacted object, so that an operator can clearly know the next impact position, the impact ball can accurately fall to impact a sample, the interference of human factors is greatly reduced, and the working efficiency is improved. The test result accuracy and the data repeatability are effectively improved, and a reliable data basis is provided for material performance evaluation and product quality detection.

A ball for certain practice and sporting activities in the game of pickleball, wherein the ball comprises a plastic outer shell having at least one opening, wherein the opening or coating may contain damping properties to reduce noise when the ball impacts a racket or court surface / ground. The ball may be a spherical hollow shell ball with at least one opening. The ball may have at least one opening, wherein the shape of the opening includes a hole and a slot intersecting the hole. Furthermore, the opening in the ball may have a tapered edge, a rounded edge, and / or a stepped edge. Furthermore, the exterior of the ball may have a damping tape or coating applied to the interior or exterior of the ball.

The invention belongs to the technical field of polymer composite materials, and relates to a high-toughness PET (Polyethylene Terephthalate) elastic decorative plate base material which comprises the following components in parts by mass: 100 parts of pre-extended chain r-PET particles, 300-400 parts of filler, 20-35 parts of flexibilizer and 5-25 parts of lubricant, wherein the pre-chain-extended r-PET particles are prepared from the following components in parts by mass: 100 parts of r-PET bottle flakes, 0.5 to 1.0 part of a chain extender, 0.3 to 0.7 part of a hydrolysis inhibitor, 0.2 to 0.5 part of a lubricating agent and 0.5 to 1.0 part of an antioxidant. The invention also discloses a preparation method. Aiming at the problems of insufficient toughness, low melt strength, easiness in hydrolysis and the like of the r-PET decorative material in a high filling system, through staged physical-chemical synergistic modification, the r-PET decorative material is formed by compounding pre-chain-extended r-PET particles with the filler, the flexibilizer and the lubricant according to a specific ratio and carrying out extrusion molding, the falling ball impact height is greater than or equal to 1000mm, and the impact strength of the r-PET decorative material is greater than or equal to 20mm. The environment-friendly and low-carbon floor pavement material has the advantages of high melt strength, low hydrolysis risk and excellent mechanical properties, is suitable for indoor and outdoor floor pavement materials with strict requirements on falling ball impact performance, conforms to the green and low-carbon concept, does not release a plasticizer, and meets the requirements of environmental protection and health.

The application discloses a polycarbonate composition and application thereof, and belongs to the technical field of high polymer materials. The polycarbonate composition comprises the following components in parts by weight: 89-96 parts of a polycarbonate resin, 0.6-12 parts of a welding reinforcing agent, wherein the welding reinforcing agent comprises welding reinforcing agent A and welding reinforcing agent B, the welding reinforcing agent A is a polymer with a butadiene segment, the mass percentage content of the butadiene segment is 28-72%, the welding reinforcing agent B is a siloxane compound with a phenyl group, and the mass ratio of the welding reinforcing agent A to the welding reinforcing agent B is (2-5):1. The polycarbonate composition has high ultrasonic welding strength and good drop ball impact performance under the joint action of the components in specific contents, and is suitable for preparing products such as power adapter housings and automobile lamps.

The invention belongs to the technical field of glass ceramic testing equipment, and particularly relates to a glass ceramic impact resistance testing device which comprises a base frame provided with a material returning funnel and a material discharging channel; the bearing mechanism comprises a working platform deck, a fixing clamp and a lifting assembly, the fixing clamp is installed on the working platform deck in a swinging mode, and the lifting assembly is used for driving the fixing clamp to swing; the testing mechanism comprises a fixing support, an object falling module and an adjusting assembly, a feeding channel communicated with the discharging channel is formed in the fixing support, the object falling module is communicated with the feeding channel and provided with a testing steel ball used for releasing and impacting the glass panel to be tested, and the adjusting assembly is used for adjusting the height position of the object falling module in the Z direction; the material returning mechanism is mounted on the fixed bracket and is used for feeding the test steel balls back into the object falling module along the feeding channel; the beneficial effects of the invention are that the automatic return of the test steel ball is realized, the convenience and the test safety are improved, and the stability of the falling ball impact test result is obviously improved.

A mobile power battery pack bottom ball impact test impact device, including mobile base plate, impact device support, impact device driving part and impact ball head, impact device support is installed on the mobile base plate, and the impact device driving part is installed on the impact device support; The impact device driving part is a linear motor driving part powered by a linear motor, the linear motor driving part is installed on the impact device support, and the impact ball head is installed on the head of the linear motor driving part. The impact ball head is driven by the linear motor to move up and down. The utility model adopts the linear motor to drive the impact ball head, determines the speed and energy to hit the specified position, compared with the existing spring, pneumatic and other launch 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 a mattress detection device based on a falling ball impact experiment, and relates to the technical field of mattress detection equipment. Comprising a battery box assembly, rolling wheels are fixedly installed at the four corners of the lower surface of the battery box assembly in a rectangular shape, a lifting mechanism is fixedly installed on the upper surface, close to the left side, of the battery box assembly, a transverse plate is fixedly installed on the right side face of the lifting mechanism, and two pressure sensors are fixedly installed on the lower surface, close to the right side edge, of the transverse plate; a mounting plate is fixedly mounted between the lower surfaces of the pressure sensors, an electromagnetic chuck is fixedly mounted on the lower surface of the mounting plate, and vertical rods are mounted at the positions, close to the left and right, of the mounting plate through first mounting mechanisms. According to the utility model, the rebound height of the ball body can be accurately detected, the rebound degree of the mattress can be better detected, the ball body can be conveniently fixed when the device is not used, and meanwhile, the pressing detection on the mattress is increased, so that the stress and deformation of the mattress are detected, and the practicability is high.

The invention relates to the field of drilling, and provides a device and a method for placing a drilling sleeve on a target spot based on hydraulic impact uncoupling. The device for placing the drilling sleeve on the target spot based on the hydraulic impact uncoupling comprises a drill rod; the sleeve is coaxially arranged outside the drill rod; the sleeve connecting and disconnecting assembly is arranged between the lower end of the drill rod and the upper end of the sleeve and used for connecting the sleeve and the drill rod in a locked mode in the initial state, the sleeve connecting and disconnecting assembly comprises a shearable connecting piece, the shearable connecting piece is used for achieving the locked connection of the sleeve and the drill rod, and an impact seat face is further arranged in the sleeve connecting and disconnecting assembly; the size of the connecting and disconnecting ball is matched with the inner diameter of the drill rod, the connecting and disconnecting ball is used for being driven by high-pressure fluid to move downwards in the drill rod until the connecting and disconnecting ball impacts on the impact seat surface, and the shearable connecting piece is sheared off through impact force formed by the high-pressure fluid on the connecting and disconnecting ball, so that the sleeve is separated from the drill rod. The target spot drilling sleeve placing device based on hydraulic impact uncoupling is accurate in positioning, high in targeting performance, easy and convenient to operate and reliable.

This application relates to a secondary impact protection structure and a falling ball impact testing machine having the same. The secondary impact protection structure includes a support plate, a pusher, a photoelectric switch, and a receiving component. The pusher is connected to the support plate. The photoelectric switch is electrically connected to the pusher. The receiving component is used to receive steel balls and includes a first baffle, a second baffle, a third baffle, a base plate, and multiple deceleration protrusions. The first baffle is connected to the pusher, and the second and third baffles are both connected to the first baffle and are arranged opposite to each other. The base plate is connected to the first, second, and third baffles, and the base plate gradually slopes downwards along the direction closest to the first baffle. The multiple deceleration protrusions are arranged in an array on the base plate. The technical solution of this application effectively solves the problem of instability and easy rolling of steel balls during steel ball reception in the prior art.

This application relates to a tennis intelligent match training method and system based on a bounce-back medium. The method includes: projecting a virtual image onto a bounce-back medium with elastic recovery characteristics, the virtual image simulating a virtual tennis half-court located on the other side of the bounce-back medium; capturing the trajectory of a real ball flying towards the bounce-back medium; acquiring impact parameters in response to detecting a real ball impacting the bounce-back medium; mapping the impact parameters to the initial motion state of the virtual ball in the virtual tennis half-court; generating a simulated flight trajectory and / or landing point information of the virtual ball in the virtual tennis half-court based on the initial motion state and a preset physical model; and displaying the virtual flight trajectory and / or landing point information in the virtual image. This application can provide visual feedback on the ball's landing point and training data while maintaining the continuous rebound characteristics of the bounce-back medium, allowing trainees to intuitively understand the hitting effect and optimize training guidance.

The utility model relates to a kind of material impact testing equipment, specifically to a kind of falling ball impact test equipment, including bottom plate, turret module and ball suction module;Bottom plate is equipped with station;Turret module includes push rod motor and lifting support;Push rod motor is mounted on bottom plate, output end is connected ball suction module by lifting support;Ball suction module includes first hollow light axle, sensing component and electromagnet;First hollow light axle is fixed on lifting support, second end is set towards station;Sensing component includes inductive switch, telescopic outer sleeve and telescopic inner shaft, telescopic outer sleeve is mounted on the second end outside of first hollow light axle, telescopic inner shaft is mounted on the one end of telescopic outer sleeve close to station, inductive switch is located in the second end inside of first hollow light axle and detection end is towards telescopic inner shaft;Electromagnet is mounted on the one end of telescopic inner shaft close to station.Compared with prior art, the utility model solves the inconvenience of existing falling ball impact test equipment.The scheme realizes motor control steel ball lifting, and precision is greatly improved.

A ball hitting anti-crusting device of a zinc smelting leaching residue drying kiln comprises a plurality of angular buffer sets evenly arranged on the outer circumference of a drying kiln cylinder, each angular buffer set is composed of twelve angular buffers on the same circumference, and steel balls are arranged in each angular buffer. The angular buffer comprises a straight pipe impact section, a straight pipe ball holding section and an arc-shaped bent transition section formed between the straight pipe impact section and the straight pipe ball holding section, the straight pipe impact section is perpendicular to the surface of the drying kiln barrel, and the straight pipe ball holding section inclines in the direction opposite to the rotating direction of the drying kiln barrel through the arc-shaped bent transition section. The straight pipe ball holding section inclines by 60 degrees relative to the straight pipe impact section, a triangular reinforcing rib is welded between the bottom of the outer wall of the angular buffer and a bottom plate of the bottom face of the angular buffer, and an upper port of the angular buffer is connected with a top plate through a connecting flange and a bolt. Under the same additional torque of the drying kiln, larger impact energy and denser impact points are generated, and a better effect of preventing the kiln from crusting is achieved.

The utility model discloses a grinding and screening device for foundry waste sand recovery belongs to foundry waste sand recovery technical field. Grinding and screening device for foundry waste sand recovery, including screening box, be equipped with several levels of sieve basket in the screening box, place the grinding ball in the sieve basket, and the sieve basket is connected through the linkage of connecting rod, and the upper end of connecting rod is connected with the cylinder, drives sieve basket both ends to shake up and down, and the bottom of screening box is equipped with the inclined export bottom plate. The utility model discloses through the sieve basket shaking and the synergistic effect of grinding ball, realizes the synchronous crushing and grading of waste sand, improves the processing efficiency, and the multistage screen is matched with the electromagnetic adsorption plate, and the automatic separation of grindable and ungrindable material is avoided, and the shaking design of export bottom plate avoids the accumulation of fine sand, ensures the screening continuity, and the sieve basket is inclined and shakes continuously, and the combined grinding ball impact, effectively prevents the mesh blockage, and the structure of screening box is closed and the design of guide material passage.

The invention relates to the technical field of impact test equipment, and discloses a falling ball impact testing machine and a lining plate detection method.The falling ball impact testing machine comprises a test bed, a placement table and a steel ball, the placement table is erected on the test bed, a clamp and a mechanical sensor are arranged on the placement table, the clamp is used for clamping a to-be-tested sample, and the mechanical sensor is arranged on the placement table; the mechanical sensor is used for collecting impact data, and a ball outlet is formed in one side of the test bed; according to the falling ball impact testing machine, by arranging the sorting track, the upward moving assembly and the traction track, steel balls falling into the test bed can be conveyed into the ball placing pipe again, circulating falling and rising of the steel balls are achieved, and continuous impact can be conducted on the specific position of the surface of the lining plate without manual participation; the effect that the lining plate is continuously impacted in the working process of the mill is simulated, under the condition that the reliability of the impact test result is guaranteed, the test efficiency is improved, the manual participation degree is reduced, and meanwhile the impact frequency can be adjusted to be further close to the working condition of the lining plate.

The utility model relates to the technical field of material detection, and particularly discloses a repeated drop point prevention test device with a switch for a falling ball impact test, which comprises a detection table and a falling ball detection unit, the detection table is used for storing a soft material to be detected; the falling ball detection unit comprises a ball body, an electromagnetic adsorption unit used for adsorbing and releasing the ball body, and a position locking piece used for locking and releasing the electromagnetic adsorption unit. In the detection process, the ball body pops up reversely after falling on the soft material to be detected, the detection module can adopt a sound sensor, the sound generated when the ball body collides with the soft material exceeds a threshold value set by the sound sensor, the magnetic module is started by the controller connected with the sound sensor when the ball body collides with the soft material, and the magnetic module is started by the controller connected with the sound sensor. According to the device, the rebounded ball falling on the soft material can be adsorbed, only a single color development point is formed on the pressure film, and a detection result can be conveniently checked.

The utility model relates to a ceramic ball shock resistance detection platform, which belongs to the technical field of shock resistance detection equipment, and comprises a detection box body, a feed port is arranged at the top of the detection box body, a concrete pouring table is arranged at the bottom of the detection box body, the top of the concrete pouring table is obliquely arranged, and lining bricks are arranged at the top of the concrete pouring table. A lining plastic plate I is arranged on the side wall of the detection box body, a discharge pipe is arranged on the detection box body corresponding to the lower end of the lining brick, and a lining plastic plate II is arranged on the inner wall of the discharge pipe. According to the utility model, the stress scene of the ceramic balls is simulated in a free falling impact mode, impact resistance detection can be carried out on each ceramic ball passing through the feed port, broken ceramic balls with unqualified impact resistance can be effectively screened out, the outflow probability of unqualified products is greatly reduced, and the product quality is guaranteed.

This utility model relates to the technical field of Peak rackets, disclosing a lightweight and shock-absorbing Peak racket, including an inner core plate made of EPP foam. The inner core plate has an upward-facing upper surface and a downward-facing lower surface, and the upper and lower surfaces of the inner core plate are respectively covered with a middle fabric layer made of fiberglass cloth. The inner surface of the middle fabric layer is fused and bonded to the inner core plate by hot pressing. The outer surface of the middle fabric layer is covered with a shell layer made of carbon fiber composite material, and the shell layer is fused and bonded to the middle fabric layer by hot pressing. The inner core plate has multiple central through holes and multiple peripheral through holes, which penetrate the inner core plate vertically. The size of the peripheral through holes is larger than that of the central through holes. In this way, when the ball hits the racket face, the elastic deformation of the inner core plate made of EPP foam can quickly dissipate the shock energy, greatly reducing the vibration transmitted to the arm and reducing muscle fatigue.

The invention discloses a circuit board strength detection device and a detection method thereof, and relates to the technical field of circuit board strength detection.The circuit board strength detection device comprises a detection table, and a circular placement groove is formed in the top of the detection table; the object placing table is arranged on the inner wall of the bottom of the placing groove; and the interval ball discharging mechanism is positioned right above the object placing table. According to the circuit board strength detection device and the detection method thereof disclosed by the invention, when the strength of the circuit board is detected, after the circuit board is positioned, the rotating motor is started to drive the rotating lower ball sheet to rotate, so that iron balls in the lower ball pipeline are driven to fall at intervals and impact the circuit board, and the monitoring camera performs real-time shooting; the continuous falling ball enables the circuit board to be in an oscillation state, thereby cooperating with the continuous impact of the iron ball, obtaining the specific strength of the circuit board in an oscillation environment when the circuit board is impacted, enabling the environment to be more fit with the reality, and obtaining the more specific strength detection data.