2results about How to "Guarantee normal operation" patented technology

This utility model relates to a medical pendant with self-lubricating function, belonging to the field of medical device technology. It solves the problem of inadequate lubrication caused by bearings detaching from lubricating oil during operation in existing medical pendants. This utility model includes a drive mechanism, which comprises a shaft and an oil reservoir ring. An oil inlet hole is provided along the axial direction of the shaft, penetrating at least one end of the shaft. An oil distribution hole is provided along the radial direction of the shaft, communicating with the oil inlet hole. The oil reservoir ring is located at the end of the oil inlet hole near the lubricating oil. A height difference exists between the inner wall of the oil reservoir ring at the end furthest from the shaft and the inner wall of the oil inlet hole, forming an oil reservoir. After the shaft detaches from the lubricating oil, under the action of centrifugal force, the lubricating oil in the oil reservoir flows out through the oil distribution hole and lubricates the rolling bearings mounted on the shaft, achieving uninterrupted continuous lubrication of the rolling bearings and ensuring smooth reciprocating lifting and lowering of the medical pendant's cantilever.

The application relates to the field of radar technology and discloses an active ventilation cooling system and method for a radar antenna cover, which comprises a top ventilation opening, an antenna cover, an active ventilation cooling device and a fan controller, the top ventilation opening is located at the top end of the antenna cover and is used for natural ventilation and auxiliary heat dissipation, the antenna cover is designed as a cavity opening type semispherical shape to adapt to the installation and operation of a radar antenna, the active ventilation cooling device is arranged at the bottom end of the antenna cover and is used for air intake and air exhaust, and the fan controller is used for controlling the start and stop of the active ventilation cooling device. The active ventilation cooling system and method can solve the problem of poor heat dissipation of the radar antenna cover in a high-temperature environment, realize efficient heat dissipation, automatic control and all-weather operation.