Telescopic assembly and radar assembly

Abstract

The invention discloses a telescopic assembly which comprises a fixed part, a rotating part, a connecting shaft, a first connecting seat and a second connecting seat, wherein the rotating part is inthreaded connection with the fixing part and is suitable for stretching and retracting relative to the fixing part through a spiral transmission mode; the connecting shaft is connected with the rotating part, and the rotating part is suitable for rotating relative to the connecting shaft; the first connecting seat is hinged with the connecting shaft; and the second connecting seat is hinged with the fixing part. The telescopic assembly at least has the following advantages that through rotating the rotating part, the rotating part can do telescopic motion along an axial direction relative to the fixing part so that a distance between components connected with the first connecting seat and the second connecting seat can be adjusted; in an adjusting process, the fixing part, the connecting shaft, the first connecting seat and the second connecting seat do not need to rotate, the rotating part can be rotated to achieve adjustment; and adjustment is rapid and convenient, and assembling isconvenient as a whole.

Description

technical field [0001] The invention relates to the field of radar, in particular to a telescopic component and a radar component. Background technique [0002] In the weather radar system, the antenna array refers to the antenna system arranged according to certain rules. The pitch angle of the antenna array usually needs to be adjusted, which directly affects the pointing accuracy of the radar, thus affecting the performance of the entire system. [0003] At present, the pitch rotation mechanism of weather radar antenna array commonly used is generally designed as a double-pivot rotation structure, that is, one end of the antenna array is hinged to a point, the other end is hinged to a connecting rod, and the connecting rod is hinged to another fulcrum. However, the design process of this structure is complicated. , the cost is high, and the antenna array needs to work with stable and reliable brakes, safety clutches, buffers and other components when switching the pitch a...

AI Technical Summary

Problems solved by technology

[0003] At present, the pitch rotation mechanism of weather radar antenna array commonly used is generally designed as a double-pivot rotation structure, that is, one end of the antenna array is hinged to a point, the other end is hinged to a connecting rod, and the connecting rod is hinged to another fulcrum. However, the design process of this structure is complicated. , the cost is high, and the antenna array needs to work with stable and reliable brakes, safety clutches, buffers and other components when switching the pitch angle, which has high requirements on the overall manufacturing process and assembly process of the mechanism, and the maintainability is relatively high Poor; specifically, the adjustment of the pitch angle during the assembly process of the mechanism is very cumbersome, which occupies a large amount of system assembly time; not only that, in order to maintain the stability of the double-pivot rotating structure, the method of adding balance weights is often used during design or assembly. The position of the center of mass of the mass of the pitching rotation part coincides with the center of rotation of the pitching axis, which increases the total weight of the entire system

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