33results about How to "Guaranteed axial stiffness" patented technology

The invention relates to a permanent magnet gyro motor with double stators and a through-hole bearing. The permanent magnet gyro motor comprises the stators, a rotor, two thrust plates and a shaft, wherein the shaft is coaxially sleeved in a bearing hole of a rotor bearing cover; the two thrust plates are respectively arranged at the left and right ends of the shaft according to a working manner of a hydrodynamic gas-lubricated bearing, and are fixed by inner nuts; the left end and the right end of the rotor are respectively provided with a stator; and the two stators are fixed on a shaft by outer nuts. The permanent magnet gyro motor is scientific in design, and reasonable in structure. According to the technology, the aim that the three-phase permanent magnet gyro motor (with the double stators and the through-hole type hydrodynamic gas-lubricated bearing) of a position-free sensor is applied in the field of gyros can be realized, so that the precision of the gyro and an inertial navigation system can be obviously improved, and the permanent magnet gyro motor is advanced in technology, and fills the technology blank in China.

The invention discloses a buckling induction support with the ends provided with annular Y-shaped induction units. The buckling induction support comprises constraining sections, energy consumption sections and a supporting straight section. The energy consumption sections are arranged at the two ends of the supporting straight section and each composed of at least one annular Y-shaped induction unit in the axial direction of the support. Each annular Y-shaped induction unit is a space body which is formed by sequentially arranging m annular Y-shaped sub units in the annular direction, and the section of the space body is a regular m polygon. Each annular Y-shaped sub unit is a space body formed by collinearly folding two triangular plates and two trapezoidal plates located in the same plane correspondingly in pair. The buckling induction support keeps elasticity under the effect of small earthquakes, enters a yielding stage under the effect of medium earthquakes or large earthquakes, and can achieve the effect of a damper by means of the good hysteretic energy consumption performance of the support. Compared with traditional buckling constraint supports, by adoption of the buckling induction support, the workload of site construction operation is decreased, energy is saved, and the environment is protected.

The invention discloses a bending induction support with a circumferential double-layer concave type induction unit at an end part. The bending induction support comprises a constraint section, an energy consumption section and a supporting flat-straight section, wherein the energy consumption section is arranged at two ends of the supporting flat-straight section and comprises at least one circumferential double-layer concave type induction unit along the axial direction of the support; and the circumferential double-layer concave type induction unit is a space body which is composed of m circumferential double-layer concave type subunits arranged sequentially along a circumferential direction and has a regular polygonal cross section, and each circumferential double-layer concave type subunit is a space body which is formed by folding six triangular plates and six trapezoidal plates in the same plane. The bending induction support disclosed by the invention keeps elasticity under the action of small shock, and enters a yield phase under the action of medium shock or big shock, and the good hysteretic energy consumption property of the bending induction support can achieve an effect of a damper. Compared with the conventional bending restraint support, the bending induction support disclosed by the invention reduces the workload of site construction operation, and is energy-saving and environment-friendly.