7results about How to "Low structural stability" patented technology

The utility model relates to the technical field of biomimetic robots, in particular to a tensegrity biomimetic robot which comprises a first pressing rod, a second pressing rod, a third pressing rod, a fourth pressing rod, a fifth pressing rod, a sixth pressing rod, a plurality of drivers and a controller, the controller is located in the middle of a geometry formed by the pressing rods and electrically connected with the drivers, and inhaul cable assemblies are further installed between the drivers. According to the bionic robot, various forms can be changed, and the adaptability of the bionic robot is improved.

This utility model provides a suspension arm assembly, belonging to the field of automotive parts technology. It solves the problem of insufficient structural stability in existing suspension arm assemblies when reducing weight. This suspension arm assembly includes an arm body, a ball joint assembly, and a bushing assembly. The arm body includes a V-shaped main body, end rings at both ends of the main body, and a central cylinder in the middle of the main body. The end rings are fixedly connected to the bushing assembly, and the central cylinder is fixedly connected to the ball joint assembly. The main body is flat and strip-shaped. Both the front and back of the main body have quadrilateral, closed-sided weight-reduction grooves. The length of the weight-reduction grooves is along the length direction of the main body. The weight-reduction grooves on the front and back of the main body have the same shape and corresponding positions. Both the front and back of the main body have two weight-reduction grooves located on either side of the central cylinder. One end of the weight-reduction groove is spaced apart from the central cylinder, and the other end of the weight-reduction groove is spaced apart from the corresponding end ring. This suspension arm assembly can reduce weight while maintaining structural stability.

This invention discloses a salmon protamine preservative, its preparation process, and its application, relating to the field of food preservation technology. The process includes: preparing a salmon protamine solution with a mass concentration of 2-5%; preparing a sodium alginate solution with a mass concentration of 1-3%; mixing the salmon protamine solution and sodium alginate solution at a volume ratio of 1:1 to 1:3 to obtain a mixed solution; adding the mixed solution dropwise to a calcium chloride solution with a mass concentration of 2-4% to form gel microspheres; solidifying the microspheres in the calcium chloride solution and filtering to obtain the gel microspheres; immersing the washed gel microspheres in a chitosan solution with a mass concentration of 0.5-1.5%; and freeze-drying the obtained gel microspheres to obtain the final product. This invention achieves efficient encapsulation and long-term sustained release of salmon protamine, enhances the structural stability of microspheres in acidic environments, prevents premature leakage of active ingredients, exhibits broad-spectrum antibacterial activity, extends food shelf life, and is characterized by a mild, environmentally friendly process that facilitates storage and transportation.

The utility model provides a sheet material forming tool for manufacturing corrugated sheet, including upper tool assembly and lower tool assembly, upper tool assembly and lower tool assembly include base and a plurality of finger elements respectively, a plurality of upper finger elements and a plurality of lower finger elements are inserted in upper base and lower base along the feeding direction, interval, upper finger elements and lower finger elements are opposite, set alternately, are used for stamping sheet material to form the corrugation of corrugated sheet, the inner wall surface of upper base and lower base is abutted on the side wall of upper finger elements and lower finger elements respectively. The sheet material forming tool will be subject to wear forming element and fixed element split body manufacture, only need to replace the damaged finger element, and do not need to replace the whole sheet material forming tool, thereby shorten the replacement time, improve production efficiency, also save the replacement cost. And the cooperation structure of finger element and base is simple, avoids stress concentration, reduces the probability of damage.

The application discloses a titanium-doped silicon-carbon negative electrode material and a preparation method thereof. The preparation method comprises the following steps: S100, mixing a carbon source, a titanium source and a pore-forming agent in water to obtain a first product containing titanium oxide through freeze-drying; S200, calcining the first product in a reducing gas to obtain Ti4O7-doped porous carbon; and S300, performing gas-phase deposition of a silane gas source and a carbon gas source on the outer surface and pores of the Ti4O7-doped porous carbon in an inert gas to obtain a silicon-carbon negative electrode material. The carbon source, the titanium source and the pore-forming agent are mixed in water to generate titanium oxide, and the titanium oxide is calcined by using a reducing gas, so that the titanium oxide is reduced into Ti4O7 with metallic conductivity and high catalytic activity, and the electron transmission is fast and the structure is stable. The silane gas source and the carbon gas source are gas-phase deposited on the Ti4O7-doped porous carbon to generate silicon-carbon active substances in situ, and the structural stability and the conductivity are improved.

The invention relates to the technical field of steel rail flaw detection, in particular to a steel rail flaw detection and multifunctional detection railcar which comprises a heat preservation mechanism and flaw detection mechanisms, the flaw detection mechanisms are arranged on the two sides of the heat preservation mechanism, the heat preservation mechanism comprises a moving assembly, a water supply assembly, a flow guide assembly and a heating assembly, and the water supply assembly is arranged on the front side of the top of the moving assembly; the flow guide assemblies are arranged on the two sides of the front side of the water supply assembly, the heating assemblies are arranged on the two sides of the water supply assembly, the flaw detection mechanism comprises guide assemblies, deicing assemblies, coupling assemblies, adapting assemblies and adjusting assemblies, the guide assemblies are arranged on the front sides of the two sides of the flow guide assemblies, and the deicing assemblies are arranged at the bottom of the flaw detection mechanism. The steel rail flaw detection and multifunctional detection rail car is provided with a structure for continuously preserving heat of flaw detection equipment, so that failure of the flaw detection equipment due to low temperature is avoided, and the stability of the flaw detection equipment during steel rail detection is improved.

The application belongs to the technical field of high-voltage electrolyte of lithium metal battery, and specifically discloses a high-voltage electrolyte for lithium battery and application thereof. The electrolyte comprises lithium salt, organic solvent and additive. The lithium salt comprises lithium hexafluorophosphate and lithium diboronic acid; the organic solvent is composed of ethylene carbonate, dimethyl carbonate and diethyl carbonate; and the additive is 2-cyano-4-methoxyphenylboronic acid. The application also discloses a lithium metal battery comprising the electrolyte. By adopting mixed lithium salt with a specific proportion, mixed solvent and adding a specific amount of 2-cyano-4-methoxyphenylboronic acid additive, the synergistic effect of each component makes the electrolyte have excellent stability at high voltage, can form a stable and low-impedance interface film on the surface of the positive and negative electrodes, effectively inhibits the structural degradation and interface side reaction of the lithium cobaltate positive electrode, protects the lithium metal negative electrode, and significantly improves the cycle life of the lithium metal battery at high voltage.