Rotary table mechanical limiting mechanism and method with configurable limit rotation angle

Abstract

The invention discloses a rotary table mechanical limiting mechanism and method with configurable limit rotation angle. The mechanism comprises a limited gear fixed with a rotary table, and the angleof the rotary table can be adjusted and controlled by adjusting the angle of the limited gear; the angle adjustment of the limited gear is realized by a mechanical limiting device, the structure of the mechanical limiting device comprises an input gear, a screw rod shaft and an adjusting device, wherein the input gear is fixed on a lead screw shaft, the adjusting device adjusts the limit rotationangle of the screw rod shaft, and the adjustment of the limit rotation angle of the rotary table is realized through the transmission of the input gear and the limited gear. By adopting a pure mechanical limiting mode, the rotary table mechanical limiting mechanism with configurable limit rotation angle is proposed, the mechanical limiting angle of the rotary table can be configured in real time under different working conditions without the assistance of any electrical control device, and the application range is wider.

Description

technical field [0001] The invention belongs to the technical field of mechanical equipment, and in particular relates to a turntable mechanical limit mechanism and method with configurable rotation angles, which are used for mechanically limiting the rotation limit position of the turntable and protecting the turntable and the connecting cables of electronic equipment on the turntable. Background technique [0002] In radar and electronic warfare equipment, it is necessary for the turntable to carry the antenna feeder system and other equipment to rotate, so as to realize the search and tracking of the target signal. The antenna feeder system connects the radio frequency cable with the fixed equipment through the turntable, and it is difficult to realize multi-channel, low dropout and continuous transmission of radio frequency signals through devices such as confluence rings. Therefore, most turntables use reciprocating rotation within a certain range to realize antenna feed...

AI Technical Summary

Problems solved by technology

For example: the invention with the application number CN201621203224.3 provides a safety limit device that allows the turntable to exceed 360°, which can realize the limit rotation angle of the turntable: 360°×n (n=2, 3, 4...), but The limit rotation angle achievable by this invention can only be a multiple of 360°, which has great limitations in use; the invention with application number CN201520380138.9 provides a hard limit device for a turntable, which uses limit The way of the guide box limits the rotation of more than 360°, but the reliability in engineering is not high; the invention with the invention number of CN201810289293.8 provides a limit mechanism and method for the ±180° turntable, but it cannot The limit rotation angle can be adjusted, and it is difficult to cope with the application under multiple working conditions in actual engineering; the invention with the application number CN201510148587.5 provides a turntable limit and speed limit protection system based on multi-sensor fusion. The control method realizes the limit function of the turntable. In comparison, its composition is more complicated, and its reliability is lower than that of a purely mechanical limit mechanism, which does not belong to the category of purely mechanical limit of the turntable; A rotation limit device with adjustable limit angle has the advantage that the turntable can be quickly braked by means of a limit base and a compass, but the limit angle of the device is in the range of 10° to 360°, which is difficult to meet The actual use requirements of the equipment

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