128 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 detection device and method for a polyester heat shrink tube for a battery, and the device comprises a rotating disc mechanism, the rotating disc mechanism comprises a glass rotating disc, and a hot air nozzle mechanism, a ball ejection mechanism and a first visual detection mechanism are sequentially arranged in the circumferential direction of the rotating disc mechanism; the hot air nozzle mechanism comprises a heating assembly, the heating assembly is provided with a heating nozzle, the ball ejection mechanism comprises a ball circulation assembly, one end of the ball circulation assembly is provided with a nozzle assembly, and the first visual detection mechanism comprises a first area light source arranged below the glass rotary table and a first camera arranged above the glass rotary table. The first camera is used for performing light-transmitting image capturing on the to-be-detected heat shrink tube; the comprehensive detection of the thermal shrinkage performance, the mechanical strength and the internal quality of the polyester heat shrink tube for the battery is realized through three testing means of hot air heating, ball impact and light-transmitting visual detection, and the improvement of the product quality control level is facilitated.

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.

The utility model relates to the technical field of sports equipment, in particular to a Pick racket which comprises a racket bottom plate, foaming pills, a beating layer and a racket rod, the racket bottom plate is in a honeycomb shape, a honeycomb is arranged in the racket bottom plate, and the surface of the racket bottom plate is coated with resin. The foaming pills are placed in each honeycomb; the slapping layers are connected to the two sides of the racket bottom plate and suitable for making contact with the Pick ball, the foaming pills are limited in all the honeycombs through the slapping layers, and the slapping layers comprise nano resin materials; and the racket rod is fixed with the racket bottom plate. According to the utility model, the resin material is coated on the surface of the racket bottom plate, and the patting layer contains the nano resin material, so that the racket bottom plate and the patting layer can be fused into a whole by utilizing the viscosity of the resin, and the firmness of the Pick racket can be improved; and the racket bottom plate is made into a honeycomb shape, and the foaming pills are placed in each honeycomb of the racket bottom plate, so that the sound generated when the ball hits the racket surface is smaller, the holding time of the ball is longer, and the ball control capability of the racket surface is further improved.

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 utility model discloses an impact test device for a photovoltaic module, which comprises a frame, a photovoltaic module body is placed on the top of the frame, two L-shaped side plates are slidably connected to the top of the frame, a U-shaped support is fixedly connected to the top of the frame, a sliding table is fixedly connected to the outer wall of the U-shaped support, and a clamping groove is formed in the sliding table. The outer wall of the sliding table is slidably sleeved with a linear motor, and the outer wall of the moving end of the linear motor is fixedly connected with a supporting plate and a vertical plate. By arranging the gun barrel, the threaded pipe, the circular ring, the elastic sheets, the adjusting bolt, the scale rod and the arc-shaped guide sheets, the distance between the plurality of elastic sheets is adjusted, the support to the ice hockey with different diameters is changed, and the two arc-shaped guide sheets change the guide to the ice hockey with different diameters to assist the downward impact of the ice hockey, so that the impact test of the ice hockey with different diameters is met; the operation is simple; and the ice ball vertically and downwards impacts the top of the photovoltaic module body through the two arc-shaped guide sheets to carry out an impact test.

The utility model relates to the technical field of concrete detection devices, in particular to a concrete quality detection device based on impact elastic waves. Comprising a base, two mounting boxes fixed to the top end of the base, a transverse plate fixed to the top ends of the mounting boxes, height adjusting mechanisms mounted on the mounting boxes and a cleaning mechanism mounted at the top end of the base. According to the concrete quality detection device based on the impact elastic waves, a height adjusting mechanism and a releasing mechanism are arranged on a mounting box, a placement plate can be driven to move up and down to adjust the height of an iron ball, so that the height of the iron ball is adjusted, and meanwhile, the situation that the releasing speed of a pull rope needs to be increased due to the increase of the releasing height of the iron ball is avoided; the iron balls with different heights can be tested conveniently, the cleaning mechanism is arranged on the base, dust generated when the iron balls impact concrete can be cleaned out, and therefore the situation that the dust is accumulated at the falling point of the iron balls, and consequently the detection result is affected is avoided.

The invention relates to the technical field of falling ball impact. The invention discloses a falling ball impact detection device and a use method thereof, the falling ball impact detection device comprises a test bench, the test bench is provided with a test box, the test box is hollow, the bottom of the test box is fixedly connected with the bottom of a guide bench, and the guide bench is provided with a guide assembly. A guide assembly is arranged in the test box, a bearing assembly is arranged below the guide assembly and located in the test box, a recording device is arranged at the side end of the bearing assembly, a synchronous switching assembly is arranged at the side end of the recording device, a reset assembly is arranged at the side end of the synchronous switching assembly and located on the recording device, and the recording device comprises a linkage assembly and a display assembly. Through work of the bearing assembly and the recording device, data of multiple balls can be recorded in a unified mode, meanwhile, the balls after testing can roll in the preset direction, and the testing efficiency and convenience are greatly improved.

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.

Embodiments of putter-type golf club head comprising a striking surface capable of achieving consistent ball speeds across the striking surface to account for various ball impact locations are described herein. The striking surface has at least two materials that differ in concentration away from the geometric center of the striking surface to provide this consistency. Consistent (or uniform) ball speed is achieved throughout the striking surface as the portion of the golf ball that contacts the striking surface interacts with at least two materials having a differing material characteristic.

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 relates to the technical field of toughened glass strengthening methods, and discloses a three-time strengthening method of toughened glass, which comprises the following steps: (1) cutting: cutting a large piece of glass into small pieces of glass; (2) CNC forming is carried out; (3) primary strengthening treatment: performing chemical etching to reduce the thickness of the small pieces of glass by 30-40 [mu] m; (4) polishing the small pieces of glass; (5) secondary strengthening treatment: performing chemical etching to reduce the thickness of the small pieces of glass by 7-10 [mu] m; (6) carrying out third-time strengthening treatment, namely putting the small pieces of glass into tempering salt for ion exchange; (7) performing AF plating treatment on the small pieces of glass; and (8) rubberizing the small pieces of glass. According to the tempered glass reinforced for three times, the thickness of the glass is more effectively controlled and thinned, microcracks of the glass can be more comprehensively repaired, the edge pressure strength of the tempered glass is enhanced, the falling ball impact strength is also improved in a breakthrough manner, the anti-cracking and anti-smashing performance is better, the service life is prolonged, the safety is improved, and the protection effect on a mobile phone is better.

The invention provides a display module, a preparation method thereof and a display device, belongs to the technical field of display, and can solve the problems that the strength of a supporting layer of an existing display module is low, cracks are likely to be generated on the back face of the display module in a falling ball impact test, corrosive gas such as water and oxygen invades a display area, and growing dark spots are likely to be caused. And the display effect of the display module is influenced. The display module comprises a display panel and a cover plate which are arranged in a laminated mode. The display panel includes: a display portion; the cover plate comprises a first flat part, a second flat part and a first bent part; the first flat part is located on the light emitting side of the display part; the second flat part is located on one side of the display part away from the first flat part and serves as a supporting layer; the first bending part is connected between the first flat part and the second flat part.

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.

The present invention discloses a method for calibrating parameters of discrete element crushing model of ore particles in a semi-autogenous mill, comprising the following steps: determining discrete element physical parameters and static friction coefficient of ore particles through experiments; establishing an angle of repose regression model, and obtaining other contact parameters of ore particles through comparison of angle of repose simulation and angle of repose test; calibrating Tavares crushing model parameters by single particle impact and compression test based on a catapult-type falling ball impact device; establishing a discrete element particle model by 3D scanning the three-dimensional morphology of the ore; establishing a discrete element crushing model of ore particles according to the above process to perform single particle impact simulation, and taking the cumulative mass distribution of particle crushing as an evaluation index to determine the discrete element crushing model parameters of ore particles. The present invention adopts the above method for calibrating parameters of discrete element crushing model of ore particles in a semi-autogenous mill, which can improve the accuracy of ore particle crushing simulation in a semi-autogenous mill system, so as to better visualize the crushing process of ore particles.