Rotating and swinging mechanism of direct-driven microwave scanning reflecting plate

Abstract

The invention relates to the field of rotating and swinging reflecting plates of scanning mechanisms, and discloses a rotating and swinging mechanism of a direct-driven microwave scanning reflecting plate, the swinging mechanism comprises a reflecting plate and a cabinet body frame, a rotating main shaft is arranged on one side of the frame plate of the reflecting plate, and a rotating shaft is arranged on the other side of the frame plate of the reflecting plate; the rotating main shaft is mounted in a first bearing seat group consisting of an inner end cover and an outer end cover through a first bearing; a motor driving assembly is arranged outside the rotating main shaft and comprises a direct drive motor and an expansion sleeve; the expansion sleeve is sleeved outside the rotating main shaft, and a rotor of the direct drive motor is sleeved outside the expansion sleeve; the rotating shaft is sleeved with a second bearing, and a second bearing sleeve is arranged outside the second bearing; and a code disc is arranged on the rotating shaft. The problems that in the prior art, when a mechanical transmission device drives a scanning mechanism to rotate and swing, back clearance, mechanical loss, noise and other factors can be generated, the machine performance is reduced to different degrees, and the machine size and weight are increased are solved.

Description

technical field [0001] The invention relates to the field of rotating and oscillating reflecting plates of scanning mechanisms, and more particularly relates to a rotating and oscillating mechanism of a direct-drive microwave scanning reflecting plate. Background technique [0002] With the in-depth research on the new passive detection technology of passive millimeter wave imaging, various microwave security inspection system equipment using this technology have been launched one after another because of its advantages of no radiation and high frame frequency, and have begun to be used It is used in fields such as airport security check system, remote surveillance and anti-narcotics. In these security inspection equipment, the mirror (plate) mechanical scanning is used to cover the vertical field of view, which is a way of collecting signals. The microwave scanning reflection mechanism in this way is one of the core components of the microwave security inspection equipment....

AI Technical Summary

Problems solved by technology

[0014] In order to solve the problem in the prior art that when the mechanical transmission device drives the scanning mechanism to rotate and swing, factors such as backlash, mechanical loss and noise will reduce the performance of the machine to varying degrees, and increase the size and weight of the machine, the present invention provides a direct Driven Microwave Scanning Reflector Rotation Swing Mechanism

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