Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

86 results about "Rotatory power" patented technology

Numerically-controlled machine tool spindle rotation acceleration power and energy consumption obtaining and energy-saving control method

The invention discloses a numerically-controlled machine tool spindle rotation acceleration power and energy consumption obtaining and energy-saving control method. The method comprises the following steps: step 1) controlling a spindle to rotate and obtaining a spindle rotation power equation PSR (n), wherein the n is spindle rotation speed; step 2) obtaining design parameters, obtaining a computation formula of the spindle rotation acceleration power according to the spindle rotation power equation and the design parameters, and further obtaining a computation formula of the energy consumption; step 3) changing acceleration time of a spindle frequency converter and carrying out calculating to obtain spindle rotation acceleration power peak value and energy consumption; and step 4) selecting appropriate acceleration time of the spindle frequency converter to control the spindle so as to enable the spindle rotation acceleration power peak value is less than the preset upper limit value and the energy consumption is minimum. The power and energy consumption in the numerically-controlled machine tool spindle rotation acceleration process can be obtained only through carrying out a simple spindle rotation experiment and then with theoretical analysis and machine tool design and manufacture parameters being combined, and thus energy-saving control of the machine tool can be achieved.
Owner:ZHEJIANG UNIV

Digital door lock device

The present invention relates to a digital door lock device. According to one aspect of the present invention, a left-handed setting section and a right-handed setting section are arranged on a rotational housing which is provided on a door lock body and is coupled to a lever, and a setting section moving part is moved to the left-handed setting section and the right-handed setting section during assembly such that left-handed / right-handed levers can be selected relative to an opening direction of a door, thereby providing flexibility of installation. Furthermore, according to another aspect of the present invention, a locking and unlocking module is provided with a slip gear unit which is driven in a normal engagement state when torque does not exceed a certain value, and which causes transmission torque to idle by the slipping of the gear unit when the torque has the certain value or more, thereby reducing damage to components that constitute a lock device due to mechanical abrasion or impact or the like and the accumulated fatigue when rotatory power caused by a handle or a lever is transferred to the lock device that is installed inside, and reducing power consumption by preventing an overload of a motor, and further, rotatory power is transferred from a clutch unit to a gear unit of the motor even when coupled to a mechanical lock, thereby preventing a gear unit of a reducer from being worn out.
Owner:株式会社世客思

Liquid crystal optical device and process for its production

To provide a liquid crystal optical device showing a low haze value in the transparent state, further an excellent stability in the transparent-scattering characteristics and productivity, and to provide a production process thereof.The liquid crystal optical device in the embodiment 1 of the present invention is a liquid crystal optical device 1 comprising a pair of insulating substrates 11 and 21, of which at least one is transparent, electrodes 12 and 22 formed on respective inner faces of the substrates, and a composite 50 comprising nematic liquid crystal and a cured material, interposed between the inner faces of the substrates. The composite 50 is obtained by curing the following curable compound in the following chiral nematic liquid crystal composition in a state where the liquid crystal composition is interposed between the inner faces of the insulating substrates and the liquid crystal is aligned:chiral nematic liquid crystal composition: a liquid crystal composition showing a chiral nematic phase, comprising nematic liquid crystal and a curable compound, wherein at least a part of the curable compound is an optically active material having an optical rotatory power, and the optically active material having an optical rotatory power consists substantially solely of the curable compound.
Owner:ASAHI GLASS CO LTD

Numerical control machine tool drilling process power, energy consumption and energy-saving control method

The invention discloses a numerical control machine tool drilling process power, energy consumption and energy-saving control method. According to the method, the total power of the drilling process of a numerical control machine tool is decomposed into five parts, namely, a machine tool standby power part, a cutting fluid spray power part, a spindle rotation power part, a Z axis feed power part,and a material drilling power part; the power model of each part is established separately, so that the total power model of the drilling process can be obtained; a drilling time value is calculated through drilling depth and drilling speed; a drilling power consumption model is further obtained by multiplying the total drilling power and the drilling time; the power and energy consumption valuesof a plurality of drilling programs that are practical and feasible are calculated and evaluated according to the established total drilling power model and drilling energy consumption model, and an optimal drilling program of which the power value does not exceed a limit and of which the energy consumption is minimum is selected to perform practical cutting, and therefore, energy-saving control can be realized. The method of the invention is simple and practical, has high energy consumption prediction accuracy, is conducive to achieving energy-saving control, and is convenient to popularize.
Owner:SHANDONG UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products