Axial direction free spin device

Abstract

The invention relates to an actuator rotating freely along the axial direction which includes a fixed structure component, a swing component arranged in the fixed structure component, a laser component which is arranged on the lower bottom part of the swing component and can swing along the X shaft direction and Y shaft direction opposite to the swing component, and a plurality of groups of rolling components, each group of which comprises a round bead, two columns with concave and an assembling bolt. At least one laser model group is arranged in the laser component. As the actuator rotating freely along the axial direction of the invention works in the mode of universal bearing, when the invention is used in the operation of automatic laser level or engineering construction measuring, the benchmarks of a horizontal line and a vertical line can be acquired accurately under the state that the swing gets a high repetitiveness and a high sensitivity. The invention has the advantages of scientific, reasonable and simple structure, reliable work and convenient use. The invention has indeed positive technical effects of smooth swing, tidy component and precise measuring.

Description

technical field [0001] The invention relates to a measuring device, especially a measuring device used for automatic laser level or engineering construction, which can make the swing in a state of high repeatability and high sensitivity, so as to accurately obtain the axial direction of the horizontal line reference or vertical line reference. Free turning device. Background technique [0002] The laser measuring instruments in the currently known measuring devices are all supported by bearings and suspended on the body, and the movable shaft of the laser beam projector is installed on the suspension, so that the laser beam projector can swing at multiple angles, which is convenient The laser beam is projected onto the target location. [0003] The known laser measuring instrument as mentioned above has been disclosed in the utility model patent specification of Taiwan No. M304654 "Suspension Mechanism of a Laser Measuring Instrument". What this known utility model patent r...

AI Technical Summary

Problems solved by technology

However, the advantage of smooth swing mentioned in this prior patent application is actually only applicable to the initial stage of use, because this structural form of the suspension frame supported by bearings will generate strong friction between the components during work, which is very easy to Wear the bearing, and the worn bearing will inevitably cause the suspension frame to skew, which will seriously affect the measurement effect

Therefore, the drawbacks in the use brought by the deficiencies of this known patent have a need to be further improved

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