6 results about "Energy impact" patented technology

This invention discloses a welding stud punching mechanism, comprising a main disc and a secondary disc, which rotate synchronously in opposite directions. The workpiece is detachably mounted on the main disc. A protrusion is located on the annular side surface of the secondary disc. The protrusion and the workpiece rotate on the same horizontal plane, with the protrusion's movement trajectory forming a first circle and the workpiece's movement trajectory forming a second circle. An intersection area is provided between the first and second circles. The mechanism includes a limiting block, a piston block, and an interference component. The piston block reciprocates vertically, the limiting block reciprocates horizontally, and the interference component transfers the kinetic energy of the piston block to the limiting block. The beneficial effects of this invention are that it changes the existing stamping method; the main and secondary discs punch holes at the workpiece ends through extrusion, reducing energy impact and effectively reducing vibration and noise. The piston block adjusts the distance between the limiting block and the intersection area, thus accommodating workpieces of different lengths. The left and right chucks allow for clamping workpieces of different diameters, improving compatibility.

The utility model provides a kind of light-emitting circuit, comprising: light-emitting component, switch component and buffer component, light-emitting component can emit light, light-emitting component is at least provided with two, multiple light-emitting components are connected in parallel;Switch component is arranged between light-emitting component and driving power supply, for selectively control one or more light-emitting components and driving power supply between the loop established;Buffer component is arranged at light-emitting component, for when the loop established by light-emitting component and driving power supply is cut off, absorbing the energy released by driving power supply to the light-emitting component.The utility model discloses light-emitting circuit, it is provided with buffer component, can absorb the energy, avoid light-emitting component directly bears above-mentioned energy impact, also avoid light-emitting component from the flicker phenomenon of this energy, guarantee the stability, reliability of light-emitting component, also greatly prolong the service life of light-emitting component.The utility model also provides a kind of lamp.

This invention relates to the field of engineering machinery safety technology, specifically disclosing a load stability prediction system for telescopic boom forklifts based on the force exerted by the boom. The system collects motion sensing data and stress wave sensing data at the boom hinge; calculates a cross-spectral coherence function based on the motion data to generate a hinge coherence disorder index; performs time-frequency transformation on the stress wave data and automatically identifies energy impact patches, extracting their peak energy, center frequency, and duration; and generates a transient collision intensity spectrum index based on sensitive frequency band mapping and aggregation; constructs a time-series comprehensive feature vector from the two indices, inputs it into a pre-trained multi-layer gated recurrent unit structure for nonlinear dynamic system identification, and outputs a fused stability assessment state quantity; maps this state quantity to a virtual potential energy surface for multi-step forward extrapolation, calculates the dynamic stability margin value, and issues an early warning when the margin is lower than an adaptive threshold; this invention achieves early and accurate prediction of nonlinear jump instability.

This invention discloses a test device and method for the impact performance of an engine conical wall structure, belonging to the technical field of aero-engine structural strength testing. The device includes: a hammer for generating a falling impact; a transition assembly for an interference fit connection with the front end of the conical wall structure; a bracket for a fixed connection with the rear end of the conical wall structure; a protective assembly positioned along the hammer's descent path and on the side of the conical wall structure to catch the hammer after the conical wall structure fractures; and a protective box positioned directly below the conical wall structure to receive the failed falling conical wall structure. The method includes static load calibration and dynamic impact testing steps. This invention can meet the requirements for both split and integrated installation of conical wall structures, achieving a stable connection and dual safety protection under high-energy impacts. It can simultaneously complete static load calibration and dynamic impact integrated testing, ensuring safe and reliable testing.

The application discloses a melting method of an ultralow micro-bubble quartz crucible, which comprises the following steps: obtaining spherical synthetic quartz sand with a preset particle size range; stacking the quartz sand into a gradient accumulation structure with gradually decreasing particle size from the bottom layer to the inner surface, and fixing the quartz sand through centrifugal force and electrostatic adsorption; starting an electrode arc; entering a low-speed heating stage to remove adsorbed gas; entering a transparent layer melting stage, using the power provided by the first power surge to provide energy impact, so that the fine particles on the inner surface are rapidly melted and spread to form a uniform liquid film; entering a high-temperature maintaining stage, using the power provided by the second power surge to promote the interface fusion of quartz particles; entering a continuous heat preservation stage, and suddenly reducing the power to make the melt begin to cool down under controlled conditions; stopping melting and protecting the gas flow, demolding, cooling to room temperature, and obtaining the ultralow micro-bubble quartz crucible. The method can effectively inhibit the density of micro-bubbles in the micro-transparent layer, improve the purity, density and smoothness of the inner surface of the crucible, and make the crucible have higher crystal yield.

The present impact-resistant protective enclosure for mobile phones is designed to protect against high-energy impacts commonly encountered during sporting activities and other dynamic environments. T