3results about How to "Increase friction effect" patented technology

The utility model discloses a kind of mesh cleaning cloth, the utility model includes edge covering part and the grid part in the inside of edge covering part, the grid part includes connecting cloth, the opposite side of the connecting cloth is evenly arranged and is opened with several hexagonal mesh, the outer surface of the edge covering part is provided with micro magnetic adsorption strip, the micro magnetic adsorption strip is used for cleaning cloth to adsorb metal scrap in cleaning process.The utility model's edge covering part uses zoning design, and the four corner parts of edge covering part are provided with thickening area, effectively improve the wear resistance of cleaning cloth edge in high-strength wiping process, prolong the service life of cleaning cloth, overcome the defect that traditional cleaning cloth edge is easy to wear.The outer surface of edge covering part is provided with micro magnetic adsorption strip, the micro magnetic adsorption strip can effectively adsorb metal scrap or small iron powder in cleaning process, especially suitable for kitchen countertop, cooking plate or the area containing metal particles in industrial environment, significantly improve the functionality and cleaning effect of cleaning cloth.

The present application relates to the technical field of gas bearings, and provides a novel dual-rotation foil gas dynamic pressure bearing, comprising: a bearing sleeve, a foil, a top foil, a magnet, a retaining ring and a screw; the foil is connected by a plurality of "ZS"-shaped structures, and the "ZS"-shaped structures at the head and tail ends of the foil are nested and connected with each other. The "ZS"-shaped structures of the foil can expand and deform outwards after being stressed, and can automatically shrink after unloading, and have a certain support stiffness, and the sliding friction effect between the foil and the bearing sleeve provides damping for the bearing; the top foil is connected by a "triangular" support at the head and tail ends and a circular support. The arc surface is composed of a "triangle" support of the top foil nested in the "ZS" structure of the foil. After the foil is deformed, the "triangle" support pulls the arc surface of the top foil, and the top foil will slightly detach from the foil, changing the thickness and shape of the air film, which is beneficial to reducing the subsynchronous vibration of the rotor; the magnet is installed in the groove of the bearing sleeve, and the magnetic force acts on the foil to reduce the movement of the foil. When the foil moves, it cuts the magnetic flux lines generated by the magnet, generates eddy currents to consume energy, and provides damping for the bearing; the retaining ring is fixed to the bearing sleeve by screws to limit the axial movement of the foil and the top foil. This application has good stiffness and damping characteristics, allows the rotor to rotate in both directions, is simple in structure, does not require welding, and is easy to disassemble.

The invention relates to the technical field of energy-consuming materials, and particularly discloses an energy-consuming cell based on an auxetic honeycomb internal friction mechanism and a metamaterial applying the energy-consuming cell based on the auxetic honeycomb internal friction mechanism, the energy-consuming cell based on the auxetic honeycomb internal friction mechanism comprises a concave hexagonal unit, a first dovetail unit and a second dovetail unit; the second dovetail units and the first dovetail units are distributed in the concave hexagonal units in a bilateral symmetry manner; each concave hexagonal unit is provided with two concave angles; the vertex angle of the first dovetail unit and the vertex angle of the second dovetail unit are respectively connected with the two inner concave angles; the tail tips of the first dovetail units and the tail tips of the second dovetail units are in contact with the concave hexagonal units; according to the energy dissipation cell element based on the auxetic honeycomb internal friction mechanism, the double-dovetail friction units are embedded into the concave hexagonal honeycomb cell holes, the friction effect is enhanced through double dovetail, prestress can be applied, and therefore the friction effect can be adjusted, and the adjustment has great design flexibility.