2results about How to "Reduce drive frequency" patented technology

This invention relates to the field of steel box girder hoisting technology and discloses a docking and installation device for positioning and hoisting steel box girders. The device includes a hanger for docking with a crane and four docking components. Each docking component is mounted on the hanger and can move horizontally. Each docking component includes a docking plate and two adjusting components. Hooks are provided on both the docking plate and the adjusting components, and the positions of the hooks on the adjusting components are adjustable. The device can be flexibly adjusted according to the aerial posture and docking position of the steel box girder, reducing the need for manual assistance and the frequency of crane boom drive, reducing the workload of the team, improving docking and installation efficiency, and during hoisting, stress dispersion treatment can be applied to the lifting lug area to reduce deformation of the steel box girder, improve hoisting stability, reduce safety hazards, and ensure subsequent use effectiveness.

This application discloses a three-axis gyroscope, comprising: a central coupling structure; a first torsion mass block, a second torsion mass block, a third torsion mass block, and a fourth torsion mass block, coupled to the central coupling structure; a first driving mass block, a second driving mass block, a third driving mass block, and a fourth driving mass block, adjacent driving mass blocks being coupled to each other; a first detection mass block, a second detection mass block, a third detection mass block, and a fourth detection mass block, each detection mass block being located within and coupled to a corresponding driving mass block; and a shared coupling structure, wherein the first, second, third, and fourth detection mass blocks are coupled to the shared coupling structure, and each torsion mass block is coupled to the shared coupling structure. The three-axis gyroscope provided by this application can significantly reduce zero-bias drift and temperature sensitivity.