2results about How to "Increase centripetal force" patented technology

This invention relates to the field of grinding equipment and provides a surface grinding device and method for curved LCD screens based on a laser pointer. The device includes a fixedly mounted lifting frame and a platform. A transport guide rail is located at the bottom of the lifting frame, and a traction handle is located at the top of the platform. A grinding mechanism is located at the bottom of the platform. Each of the four corners of the platform has a branch tube. A display screen workpiece is placed at the top of the frame and the branch tubes, and edge protection components are provided at the ends of the branch tubes. In use, the display screen workpiece is placed on the frame and the branch tubes. A stepper motor drives a steering gear set via its output shaft. The steering gear set drives a drive bevel gear through a telescopic sleeve. The drive bevel gear simultaneously drives both the forward and reverse bevel gears. During the grinding process, the grinding ring and grinding disc apply opposite frictional forces to the display screen workpiece. These two frictional forces cancel each other out, thus achieving precise grinding.

The application discloses a simple structure's annular suspension electromagnetic propulsion system and method. The system comprises a centripetal-suspension system and an acceleration system. The centripetal-suspension system comprises a centripetal-suspension field coil fixed on the ground and a rotatable load end centripetal-suspension unit. The acceleration system comprises an acceleration coil fixed on the ground and a force receiving unit. The acceleration coil and the force receiving unit are located on the axis of the load end centripetal-suspension unit, and the load end centripetal-suspension unit is connected with the force receiving unit through a connecting unit. The centripetal-suspension field coil is used for generating a centripetal-suspension magnetic field in an annular area with a certain height and width. The centripetal-suspension field is used for ensuring that the suspension force is enhanced along the vertical direction downward and is reduced upward. The current in the load end centripetal-suspension unit and the centripetal field generate a centripetal force pointing to the center of the annular area, which offsets the centrifugal force generated by the rotation of the load and accelerates together with the load. The application greatly improves the acceleration capacity of the system.