Over-360-degree-angle limit sensor device

Abstract

The invention discloses an over-360-degree-angle limit sensor device, which consists of a support disc, an inner shifting rod, a slip ring, an outer shifting rod, a return spring, a slider, a steel magnet, Hall elements and a shifting block, wherein the inner shifting rod is fixed on the support disc; the outer shifting rod is fixed on the slip ring; the return spring, the slider and the steel magnet are mounted in the slip ring; a pair of Hall elements is ranged on a measured rotor part; and the shifting block is arranged on a tested stator part. When the limit sensor device provided by invention is arranged at the limit position of the null point and the terminal point of a mechanical device with a rotary angle of 360 degrees required to be detected, the rotary angle of the mechanical device successfully reaches or exceeds 360 degrees, and the available rotary angle has no mechanical dead angle generated by the physical sizes of the sensor; and thus, the quick and accurate positioning of the mechanical devices such as the antenna turntable in the horizontal direction is guaranteed.

Description

technical field [0001] The invention relates to a limit sensor, in particular to a limit sensor device with a rotation angle exceeding 360°, and belongs to the technical field of mechanical equipment. [0002] Background technique [0003] There are angle measurement problems in many mechanical equipments that require slewing control, especially the slewing equipment that uses a semi-closed loop control system. The problem of being able to rotate within the angle range of 360°. The usual way to solve the problem is to use a general-purpose photoelectric encoder to directly connect it to the rotary body, which can basically meet the problems of angle measurement and positioning. However, the photoelectric encoder itself has a certain volume, and it will occupy a certain space when installed in the rotary device. When the rotary device is large and has the installation space of the photoelectric encoder, the photoelectric encoder can be used for angle measurement and positio...

AI Technical Summary

Problems solved by technology

However, the photoelectric encoder itself has a certain volume, and it will occupy a certain space when installed in the rotary device. When the rotary device is large and has the installation space of the photoelectric encoder, the photoelectric encoder can be used for angle measurement and positioning. , but if the space of the rotary equipment itself is very small, and there is no additional space for installing the photoelectric encoder in a special environment where the size and weight are required, of course the photoelectric encoder cannot be used for angle measurement and positioning. General-purpose photoelectric encoders cannot meet their measurement requirements

[0004] Especially the main application object of the present invention is in miniaturization and light weight antenna turntable inside as the limit switch of antenna horizontal rotary motion, if do not solve measuring dead angle problem, the rotary motion direction of antenna also appears dead angle equally, so to the installation of antenna and It will cause great inconvenience to use

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