Positioning mechanism for two-position north-seeker

Abstract

The invention discloses a positioning mechanism suitable for a two-position north finder. The positioning mechanism is composed of a 180° positioning assembly, a 0° positioning assembly, a right air buffer, a left air buffer, a movable positioning assembly, and a main shaft support. 180 The °positioning assembly and the right air buffer are assembled on the right side of the upper plate of the spindle support; the 0° positioning assembly and the left air buffer are assembled on the left side of the upper plate of the spindle support; the movable positioning assembly is assembled on the two-position north finder In the A groove of the convex part of the connecting surface of the rotating body; one end of the main shaft is assembled in the E through hole of the main shaft bracket, and the other end of the main shaft extends into the D through hole of the rotating body. In the positioning mechanism of the present invention, when the rotating body drives the movable positioning assembly to rotate clockwise, the movable positioning assembly first collides with the buffer rod of the left air buffer, then decelerates, and then collides with the left contact of the 0° positioning assembly. 0° positioning point, the rotating body stops; when the rotating body drives the movable positioning assembly to rotate counterclockwise, the movable positioning assembly first hits the buffer rod of the right air buffer, decelerates, and then hits the right side of the 180° positioning assembly. After contacting the head, a 180° positioning point is generated, and the rotating body stops.

Description

technical field [0001] The invention relates to a positioning mechanism of a north finder, more particularly, a positioning mechanism suitable for a two-position north finder. Background technique [0002] The geographic north at a point on the earth is the north tangent direction of the meridian at that point, that is, the tangent direction on the horizontal plane pointing to the North Pole at that point on the earth. The north angle of a certain direction at a certain point on the earth's surface or in the earth or above the earth refers to the angle between the projection of the direction on the horizontal plane at that point and the geographic north. The process of determining the north angle by a certain method is called north-seeking. The instrument and equipment with the function of north-seeking is called north-finding instrument. It has a very broad application prospect in military and civilian fields such as surveying, tunnel construction, and oil exploration well...

AI Technical Summary

Problems solved by technology

[0004] Among the various north-finding methods, two-position north-finding is the main method. Other north-finding methods such as multi-position north-finding and continuous rotary north-finding exist. Many, larger volume; and the north-finding accuracy is not high

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