Vehicle double-screw power antenna lifting platform

Abstract

The invention discloses a vehicle double-screw power antenna lifting platform, which comprises a transmission device, a guiding device, a tray and an antenna. The transmission is arranged at the opposite angles of the car, and the guiding device is arranged at the other opposite angles. The bottom of the antenna is fixed on the tray, and the tray is arranged on the upper side of the vehicle body, wherein the four angles of the tray are connected with the transmission and the guide device respectively. The transmission comprises a motor slowdown transmission case, two sets of conical gears transmission pairs, a driving screw nut pair, a transmission shaft, two bearing support seats and intermediate junction mechanism, a driven screw nut pair and a manual transmission mechanism. According to the vehicle double-screw power antenna lifting platform, the screw nut pair are reduced from four sets to two sets to reduce the producing cost, assembly difficulty and transmission noise, and improve the transmission efficiency. The other opposite angles of the car are provided with a guiding device to improve the stability and reliability of the vehicle power antenna lifting platform.

Description

technical field [0001] The invention relates to an electric antenna device, in particular to an electric antenna lifting platform installed in a carriage and belongs to the technical field of vehicle antennas. Background technique [0002] The main function of the vehicle-mounted electric antenna lifting platform is to lift the antenna out of the top of the car during work, and then fix it on the top of the car, and the relevant equipment in the car can start to work; when transporting and storing, lower the antenna to the car and Locked to the bedplate. The existing vehicle-mounted electric antenna lifting platform drives the driving sprocket to rotate through the motor reduction box, and then drives the three driven sprockets to rotate through the transmission chain. The drive nut moves up and down to realize the lifting of the antenna platform. The structure of the transmission part is relatively complex and the assembly is cumbersome. The assembly accuracy of the four ...

AI Technical Summary

Problems solved by technology

The structure of the transmission part is relatively complex and the assembly is cumbersome. The assembly accuracy of the four lead screws rotating synchronously is very high. If one lead screw is not synchronized, the electric antenna antenna platform will be stuck. It takes repeated debugging to ensure the transmission. Synchronization and platform levelness

The transmission device takes up a lot of space, the transmission efficiency is low, the noise is large during the transmission process, and the chain is easy to loosen, fall off or even break during operation, which seriously affects the lifting of the antenna

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