A large-diameter photoelectric theodolite lens tube protective cover

Abstract

The invention provides a large-caliber photoelectric theodolite lens barrel protective cover, which is used to protect the optical-mechanical structure in the large-caliber theodolite main lens barrel. It mainly includes transmission components, drive shafts, drive wheels, toothed belts, driven wheels, driven wheel seats, organ covers, drive beam components, and overload protection components. The above components are fixed on the main body of the protective cover, and the main body of the protective cover is connected with the front end of the main lens barrel of the photoelectric theodolite. The lens barrel protective cover for large-diameter photoelectric theodolite designed by the present invention has automatic opening and closing functions; the lens barrel protective cover can be opened to any degree; Open; the overload protection component protects the motor when the organ cover is stuck and the electric limiter fails. The present invention has the advantages of automatic control, light weight, small volume, high reliability and the like compared with the currently commonly used photoelectric theodolite lens barrel protective cover.

Description

technical field [0001] The invention belongs to the technical field of photoelectric measurement and control, and in particular relates to a large-diameter photoelectric theodolite lens tube protective cover. Background technique [0002] The protective cover is used to protect the optical-mechanical structure in the main lens tube of the large-caliber theodolite. When the theodolite needs to work, the protective cover is automatically opened; when the work is over, the protective cover is automatically closed to prevent wind, sand and rain from corroding the optical-mechanical mechanism in the main lens tube. . The current lens barrel protective cover mainly has two structures: one is to connect the front end of the lens hood with a steel plate with the same diameter as the main lens barrel; the other is to connect the protective cover and the main body of the lens hood with hinges, and the protective cover is opened by driving the motor ,closure. The protective cover of ...

AI Technical Summary

Problems solved by technology

The protective cover described in structure one is heavy and requires manpower to disassemble and cannot be automated

The protective cover mechanism described in structure two has a large mass, and the power required for driving the motor is large. When the protective cover is opened to perform tasks, the space occupied by the protective cover outside the theodolite body is relatively large, which is not conducive to the working conditions in the field

At the same time, due to the large mass of the above two protective cover structures, opening or closing will affect the center of gravity of the main optical system of the theodolite, which will cause problems for the counterweight.

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