42 results about "Ball impact" patented technology

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.

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.

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 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 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.

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.

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 utility model discloses equipment for testing the impact resistance of a ball of a ball-point pen, and aims to provide the equipment for testing the impact resistance of the ball of the ball-point pen, which can automatically record the writing condition in time after detecting that a cylindrical pen naturally falls off. The device comprises a test frame which is provided with a guide groove; the falling frame is mounted on the side surface of the testing frame and is matched with the guide groove; the lifting assembly is mounted at the top end of the testing frame and is matched with the falling frame; the transverse moving assembly is mounted on the testing frame and is arranged below the falling frame; and the writing board is mounted on the bottom surface of the testing frame and corresponds to the falling frame. The device has the beneficial effects that the writing condition can be automatically recorded in time after the natural falling of the cylindrical pen is detected, the movement of the ball-point pen can be better guided, the cylindrical pen can be clamped, the falling plate can be driven to move, paper can be fully utilized, and tests under different impact surfaces can be carried out.

A machine catches a pitched baseball or softball, and pneumatically returns the ball to the pitcher without damage to the ball. The pitcher throws the ball into a mat hung inside a housing, which absorbs the ball impact, such that the ball drops onto a sloped floor and roles into a ball return tube. A pressurized air tank delivers air on demand by the pitcher to the tube to project the ball back to the pitcher. The machine is self-contained on wheels for portability.

This application relates to a performance evaluation method, a bottom protection structure, a battery pack, and a vehicle. The method includes the following steps: obtaining design parameters for the bottom protection structure of the battery pack, wherein the bottom protection structure comprises multiple layers of materials arranged sequentially along the Z-direction, and the design parameters include at least the hardness parameters of each layer, the thickness parameters of each layer, and the gap parameters between adjacent layers; determining the total ball impact energy that the bottom protection structure can withstand based on the hardness parameters, thickness parameters, and gap parameters of each layer; and determining the impact resistance performance of the bottom protection structure based on the total ball impact energy.

A machine catches a pitched baseball or softball, and pneumatically returns the ball to the pitcher without damage to the ball. The pitcher throws the ball into a mat hung inside a housing, which absorbs the ball impact, such that the ball drops onto a sloped floor and roles into a ball return tube. A pressurized air tank delivers air on demand by the pitcher to the tube to project the ball back to the pitcher. The machine is self-contained on wheels for portability.

The utility model provides a safety baseball cap helmet, including: baseball cap helmet, braid and regulator, baseball cap helmet includes cloth headgear and fixed the brim of cloth headgear front edge, the inside of cloth headgear is fixedly connected and equipped with the PC blister shell, when the baseball cap helmet suffers from the outside impact, through the PC blister shell protection, the safety of the baseball cap helmet is ensured, and the safety of the baseball cap helmet is ensured. And the injury to the head caused by baseball impact is reduced.

A Pick racket that is improved or improved to control noise is provided. The described embodiments relate to a Pick racket for reducing the loudness and / or frequency of sound generated when a ball hits the Pick racket. In some embodiments, the racket includes a surface that includes an acoustic layer infused with graphene. In some embodiments, the graphene implanted acoustic layer comprises between about 1% and 25% graphene. In some embodiments, the graphene-infused acoustic layer includes an effective amount of graphene to reduce the frequency of the generated sound to between 500 hz and 800 hz.

The invention discloses a high thermal conductivity, high impact resistance and flame retardant PC / ABS alloy material and a preparation method thereof, the PC / ABS alloy material comprises the following raw materials by mass: 18-77 parts of polycarbonate (PC) resin, 10-55 parts of polyacrylonitrile-styrene-butadiene resin (ABS), 5-20 parts of hexagonal boron nitride, 0.2-0.5 part of an anti-drop synergist, 1-7 parts of a compound compatible flexibilizer, and 2-5 parts of a compound lubricant. The invention creatively provides a compound compatible toughening agent and a compound lubricant, and if the compound compatible toughening agent and the lubricant are added and used according to a certain proportion, the defects that after a heat-conducting filler is added into a flame-retardant PC / ABS alloy, a phase interface is incomplete, finally, the notch impact performance of a flame-retardant PC / ABS alloy material is greatly reduced, and the flame-retardant PC / ABS alloy material is difficult to deform can be overcome. And the falling ball impact experiment requirements cannot be met in the electric shells of people.

A pickball is provided for increasing durability, improving performance, and / or reducing the loudness and / or frequency of sound produced when the ball strikes a racket. The ball is a hollow sphere composed of a spherical shell defining a cavity. The ball is made of a polymeric material infused with graphene, and the shell defines a plurality of holes distributed around the surface of the ball.

The present disclosure relates to a string bowling machine and, more particularly, to a string bowling machine provided with a hybrid pin fall detection mechanism for detecting fallen pins after ball impact. The pin fall detection system includes: a vision system positioned to detect a fallen pin; and a machine pin-string sliding detection system to detect movement of individual strings attached to individual pins and which is used in tandem with the vision system to accurately determine which pins of the individual pins have fallen after a throw of a bowling ball.

The utility model discloses a falling ball impact test bench with a height adjusting structure. The falling ball impact test bench comprises a bottom table, a fixing sleeve fixedly connected with the upper side of the middle part of the left end of the bottom table, and a bearing plate nested and clamped in the fixing sleeve, a height adjusting structure is arranged between the fixing sleeve and the bearing plate, the height adjusting structure comprises a limiting plate, a handrail, a limiting rod, a gasket, a spring, a height sensor, a displayer and a controller, and the limiting plate is clamped to the inner side of the upper right end of the fixing sleeve; and a falling ball impact test structure is arranged on the right lower side of the bearing plate. According to the falling ball impact test bench with the height adjusting structure, the height of the falling ball impact test bench can be conveniently and accurately adjusted, an operator can conveniently carry out a same-position and same-force falling ball impact test on a to-be-tested piece, object sensing control shielding is facilitated, and the falling ball impact test bench can carry out secondary impact prevention on the test piece; the test is prevented from being influenced.

This invention discloses a halogen-free flame-retardant prepreg and a polypropylene composite material comprising the same. The halogen-free flame-retardant prepreg comprises fiberglass cloth and prepreg, wherein the fiberglass cloth in the prepreg has a thickness of 0.2–0.4 mm and a basis weight of 150–450 g / m³. 2 The thickness of the halogen-free flame-retardant prepreg layer is 0.3–0.8 mm. By combining the halogen-free flame-retardant prepreg layer with the ablation-resistant polypropylene composition layer, the thickness of the polypropylene composite part can be compressed to no more than 1.8 mm, and the polypropylene composite material has good ablation resistance and drop ball impact resistance, as well as good self-supporting properties.

A multi-player golf or other ball-striking game device enabling simultaneous or non- simultaneous play by multiple players at a time hitting balls onto the same screen and having a sensor and computer server configured to generate vector data regarding ball movement and point of impact with the screen, the server connected to the at least one screen, the server including: a projector or targeter element for projecting or conveying an image having a scorable area when impacted by a ball.

A system for predicting a rest position of a golf ball may identify a hit position of a ball using ball tracking sensor data. The post-impact ball motion may be modeled that combines measured ball impact physical characteristics, impact coordinates, and material properties of the ground or object corresponding to the impact coordinates, and may generate bounce and roll behavior and / or final rest position predictions along with the impact coordinates or historical ball striking data corresponding to the surrounding area.

The invention provides a falling ball impact test device and a using method thereof. The falling ball impact test device comprises a carrying table, a falling ball mechanism, a falling ball collecting jig and a controller. The carrying table is used for carrying a display panel to be detected; the ball falling mechanism is located over the carrying table and used for releasing balls to the carrying table. The falling ball collecting jig is located on one side of the carrying table and used for adsorbing rebounded balls. The controller is located on one side of the falling ball collecting jig, and the controller is electrically connected with the falling ball collecting jig, receives a response signal and controls the falling ball collecting jig to be started; and the fast and accurate adsorption of the falling ball collecting jig on the rebounded balls is realized.