Quick Balance Oil Filled Compass

Abstract

The invention provides a rapid balance oil charging compass. Side wings which are equal in height are arranged at intervals on the vertical wall of an upper body of an oil charging sealing cabin and form an oil guide passage, and the top of each side wing has a certain distance from the edge of a compass surface; damping oil can rapidly flow through the oil guide passage to reach a balance state so as to generate uniform floating force. A plurality of limiting columns which are equal in height are uniformly arranged on one diameter ring of the circular plane of a lower body of the oil charge sealing cabin, and the top surface of each limiting column has a certain distance from a magnetic driving disc body. The compass surface is prevented from inclining excessively by virtue of the limiting columns to force the damping oil to rapidly flow through the oil guide passage and oil through holes to reach the balance state so as to generate the uniform floating force. A even number of oil through holes with the same diameter are formed in one diameter ring of the magnetic driving disc body, and the center of the disc body is a symmetric center of the oil through holes, so that the mass of the compass surface is symmetrically and uniformly distributed with respect to the center, and the balance of the compass surface is realized; meanwhile, a function of providing the rapid flowing passage for the damping oil is realized.

Description

[0001] Involved [0002] The invention relates to a measuring instrument, an oil-filled single-fulcrum thimble bearing rotating disc surface quick-restoring balance device and a method thereof. One of the specific applications of this type of device is a compass with high sensitivity and high measurement accuracy. Background technique [0003] In order to reduce the oscillation of the disk surface, the disk surface is placed in a sealed cavity filled with damping oil. This structure and method are very effective in eliminating disk surface oscillation. When the disk surface is small, the damping oil eliminates the vibration of the disk surface, and at the same time, the disk surface can quickly restore balance, that is, the disk surface can quickly be in a horizontal state. For larger disk surfaces, although the damping oil eliminates the vibration of the disk surface, it has brought a more serious problem. Because of the effect of the damping oil, the disk surface cannot quickly r...

AI Technical Summary

Problems solved by technology

For a larger disk surface, although the damping oil eliminates the vibration of the disk surface, it brings a more serious problem, that is, due to the effect of the damping oil, the disk surface cannot quickly restore the equilibrium state, causing the disk surface to often be in a tilted state. It leads to low measurement accuracy and low measurement efficiency

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