2results about How to "Improve vibration reduction" patented technology

The application provides a bearing assembly for chemical mechanical polishing, comprising a damping module, a driving module and a bearing head; wherein the damping module comprises a spindle with a cavity inside and a first damping unit in the cavity, the first damping unit comprises a core and a plurality of damping blocks arranged on the outer wall of the core, the damping blocks extrude the inner wall of the cavity to absorb the transverse vibration of the spindle. The core is placed in the spindle, which enhances the damping and anti-vibration effect, in addition, the plurality of damping blocks arranged on the outer wall of the core can absorb the transverse excitation generated from the polishing head grinding, the compression resistance of the damping blocks is fully utilized, the original shearing and tensile working state is changed to a compression working state, the transverse damping capacity is increased, and the reset and limiting effects are also exerted.

The utility model discloses a motor rotor subassembly and noise reduction and improve efficiency type plastic -coated motor, wherein motor rotor subassembly includes rotor core, and the periphery of rotor core is annular distribution with a plurality of installation mouth, and the magnet is buckled and is connected in the installation mouth, and the magnetism direction of magnet is tangent to the circumferential direction of rotor core, and the outside of rotor core and magnet is connected with first plastic layer each other, and the both ends of first plastic layer extend to the outside of rotor core and form insulation end, the periphery of rotor core is distributed with a plurality of first clamping groove and second clamping piece, the periphery of first plastic layer is buckled and is connected first clamping groove through first clamping piece, and the periphery of first plastic layer is buckled and is connected second clamping piece through second clamping groove, and first clamping piece and second clamping piece all are located the radial outside of magnet. The utility model can improve the structural stability of motor.