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Principal shaft mechanism of two-position north seeker

A north finder and two-position technology, which is applied in the direction of rotating gyroscopes, can solve the problems of complex mechanical structure design, many parts used, and low north-finding accuracy, and achieve good indexing drive characteristics, simple structure, and high connection position. precise effect

Inactive Publication Date: 2009-09-16
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Principal shaft mechanism of two-position north seeker
  • Principal shaft mechanism of two-position north seeker
  • Principal shaft mechanism of two-position north seeker

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Embodiment Construction

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0027] See figure 1 As shown, the present invention is a spindle mechanism suitable for a two-position north finder. The spindle mechanism is composed of a spindle assembly 1 and a drive assembly 2. The upper end cover 118 of the spindle sleeve 114 of the spindle assembly 1 is connected with the rotation of the north finder. The body 3 is connected; the lower end surface 119 of the main shaft 101 of the main shaft assembly 1 is fixed on the B connecting sleeve 204 of the drive assembly 2 by screws.

[0028] See figure 2 , Figure 2A As shown, the main shaft assembly 1 in the present invention has the functions of uniform rotation, stability, precision, and high rigidity, and can make the rotating body 3 move in a circular motion at a uniform speed. It has a prestressed structure and a thermally symmetrical structure to reduce vibration and components under...

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Abstract

The invention discloses a main shaft mechanism suitable for a two-position north finder. The main shaft mechanism is composed of a main shaft assembly (1) and a driving assembly (2). ) is connected with the rotating body (3) of the two-position north finder; the lower end surface (119) of the main shaft (101) of the main shaft assembly (1) is fixed on the B connection sleeve (204) of the drive assembly (2) by screws. The main shaft mechanism of the present invention vertically supports the inertial measurement unit part of the two-position north finder by adopting the prestressed structure and the thermal symmetry structure, and can perform indexing and position maintenance, so as to facilitate measurement. The main shaft mechanism can be maintained in vibration and variable temperature environment, and the position is constant, which ensures the north-finding accuracy of the north-finder.

Description

technical field [0001] The invention relates to a main shaft mechanism of a north finder, more particularly, a main shaft 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 wells....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C19/04G01C19/38
Inventor 董全林张春熹杜新政姜长星任磊董泽园
Owner BEIHANG UNIV
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