Triaxial air bearing table balance method and apparatus thereof

A technology of balance device and air flotation table, which is applied in the field of measurement, can solve problems such as no implementation method given, difficult engineering application, etc., and achieve the effect of simple structure, low cost and convenient operation

Inactive Publication Date: 2009-08-19
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Li Yanbin, Baotou Steel, Wang Zuwen, Lu Yandong, etc. in the paper "Dynamic Modeling of Automatic Balance System of Three-DOF Air Bearing Platform" (see "Chinese Journal of Inertial Technology", 2005, Volume 13, Is

Method used

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  • Triaxial air bearing table balance method and apparatus thereof
  • Triaxial air bearing table balance method and apparatus thereof
  • Triaxial air bearing table balance method and apparatus thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1, combining figure 1 , figure 2 , image 3 , the three-axis air-floating table balancing device of the present invention is composed of a flywheel system and a weight balancing mechanism; the flywheel system has two groups, and its rotating shaft passes through the radial line of the three-axis air-floating billiard bearing center, and is installed on three On the horizontal surface of the axial air bearing table, it is placed orthogonally, corresponding to two sets of weight balance mechanisms; The balance mechanisms are all installed on the horizontal plane of the three-axis air bearing platform, placed orthogonally, and correspond to the two sets of flywheel systems respectively.

[0019] The weight balance mechanism includes a mounting base (1), a bracket (2), a balance weight (3), a screw (4), a slide rod (5), a weight bracket (6), a speed reducer (7) and The motor (8); is characterized in that: the mounting base (1) is connected to the bracket (2),...

Embodiment 2

[0020] Embodiment 2, the three-axis air bearing platform balancing method of the present invention, includes the following steps:

[0021] Step 1: Keep the three-axis air bearing platform stationary horizontally, and start the control program of the flywheel system. The control goal is to keep the current attitude of the three-axis air bearing platform unchanged;

[0022] Step 2: Start the weight automatic balancing program of the weight balancing mechanism;

[0023] Step 3: According to the acceleration change of the moment of the flywheel system, judge the moving direction of the weight, and start the unloading program of the flywheel system at the same time;

[0024] Step 4: After the flywheel system is unloaded, close the flywheel system unloading program and the weight automatic balance program, and the balance adjustment of the three-axis air bearing table is completed.

Embodiment 3

[0025] Example 3, combined with figure 1 , figure 2 , image 3 , the working principle of the present invention is as follows: first assume that the three-axis air-bearing table has been roughly trimmed (or after the three-axis air-bearing table is trimmed, the small change in the center of mass caused by the jet, liquid change, etc. causes the existence of the three-axis air-bearing table. small unbalance), install the flywheel system on the three-axis air bearing table, the installation method is as follows figure 1 and figure 2 As shown, different magnitudes of torque are generated by controlling the acceleration or deceleration of the momentum wheel, and the corresponding torque can be generated through the control program of the flywheel to keep the attitude of the three-axis air bearing table unchanged. Then adjust the position of the weight to realize the adjustment of the center of mass of the whole three-axis air bearing, and at the same time unload the flywheel,...

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PUM

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Abstract

The invention aims to provide a three-axle air bearing table balancing method with simple structure, low cost and convenient operation and a three-axle air bearing table balancing device. The three-axle air bearing table balancing device consists of flywheel systems and weight balance mechanisms; the flywheel systems include two sets which are both installed on the plane of the three-axle air bearing table orthogonally and correspond to two sets of weight balance mechanisms installed on the ball bearing center radial line of the three-axle air bearing table; the weight balance mechanisms include two sets which are both installed on the ball bearing center radial line of the three-axle air bearing table and on the plane of the three-axle air bearing table orthogonally. The three-axle air bearing table is provided with the special weight balance mechanisms and the special flywheel systems, which are capable of controlling the free movement of the table. The control principle of the flywheel is to keep the present gesture unchanged and the balance weight is automatically controlled and moved according to the speed change of the flywheel on the table surface, thus realizing online measurement and adjustment, as well quick and accurate automatic balance. The method and the device have simple structure, convenient operation and low cost.

Description

(1) Technical field [0001] The invention relates to measurement technology, in particular to a balancing method and device for a three-axis air bearing platform. (2) Background technology [0002] The air bearing platform relies on compressed air to form an air film between the air bearing and the bearing seat, so that the simulated platform body floats, so as to achieve a relatively frictionless relative motion condition, to simulate the mechanics of satellites in outer space with a small disturbance moment environment. As a satellite motion simulator, the three-axis air bearing platform supported by spherical air bearings can not only simulate the attitude movement required in the three-axis direction, but also simulate the satellite's three-axis attitude coupling dynamics, and perform full physical simulation through the air bearing platform It plays an important role, and it is an indispensable tool for program demonstration and functional verification. Simulation prac...

Claims

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Application Information

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IPC IPC(8): G01M1/32
Inventor 马广程夏红伟王常虹解伟男温奇咏
Owner HARBIN INST OF TECH
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