Comprehensive test table for mass center and rotational inertia of large-tonnage product

A moment of inertia and comprehensive testing technology, which is applied in static/dynamic balance testing, machine/structural component testing, measuring devices, etc., can solve the problems of inconvenient testing, low measurement accuracy, labor-intensive manual operation, etc., to achieve The effect of improved safety factor, good test cycle and shortened measurement time

Pending Publication Date: 2018-11-20
XIAOGAN BAOLONG ELECTRONICS
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are many technical problems in the existing equipment for testing the moment of inertia of the center of mass. For example, some testing equipment cannot realize the test of large-tonnage products, and there are limitations; some testing equipment cannot realize fully automatic operati...

Method used

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  • Comprehensive test table for mass center and rotational inertia of large-tonnage product
  • Comprehensive test table for mass center and rotational inertia of large-tonnage product
  • Comprehensive test table for mass center and rotational inertia of large-tonnage product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0039] 1. During the horizontal measurement of the center of mass, the upper plate 5 is in a horizontal state for measurement. After the test is completed, press the up button to start the servo motor 220, which sequentially drives the planetary reducer, the T series spiral bevel gear commutator, and the two A worm gear screw lifter 120, the lifting screw mandrel 121 jacks up the upper platen 5 and rises, so that the upper platen 5 rises to the inclination angle of the test and stops rising, and each connecting part of the worm gear screw lifter 120 is self-locked and locked, and the inclination measurement is carried out;

[0040] After the test is completed, press the down button to start the servo motor 220, which in turn drives the planetary reducer, the T series spiral bevel gear reversing device 130, and the two worm gear screw lifters 120, and the lifting screw 121 descends to make the upper table 5 horizontal .

[0041] 2. During the moment of inertia test, the upper p...

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Abstract

The invention provides a comprehensive test table for a mass center and a rotational inertia of a large-tonnage product. A lower table board is provided with an air flotation rotary system, a liftingsystem and an inclination auxiliary assembly. The air flotation rotary system and the lifting system are arranged on the front end and the rear end of the lower table board. The inclination auxiliaryassembly is arranged between the air flotation rotary system and the lifting system. The inclination auxiliary assembly can rotate forward in the direction towards the lifting system and rotate backward in the direction towards the air flotation rotary system. An upper table board is arranged above the lower table board. The air flotation rotary system includes an air flotation plate, a main shaft, a bipolar speed reduction device, a secondary planetary reduction gear and a servo motor I. The lower end of the main shaft is connected with the bipolar speed reduction device. The bipolar speed reduction device is connected with the secondary planetary reduction gear. The secondary planetary reduction gear is driven by the servo motor I. The lower end of the main shaft is provided with a rotary encoder. Therefore, the comprehensive test table with high bearing capacity, high precision and high stability is realized.

Description

technical field [0001] The invention belongs to the technical field of testing devices, and in particular relates to a comprehensive testing platform for testing the moment of inertia of the center of mass of various large satellites, spaceships, rocket engines, etc., and parts thereof. Background technique [0002] Quality characteristics are a series of mechanical characteristic parameters related to the mass of an object. Quality characteristics include mass, center of mass position, moment of inertia and product of inertia relative to a given coordinate system. These parameters are the basic inherent characteristic parameters that describe the mechanical properties of products. In the development of spacecraft, it is necessary to determine these parameters through experiments, and make necessary adjustments to these parameters according to the design requirements. [0003] The commonly used test method is that the product under test is installed on the turntable through...

Claims

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Application Information

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IPC IPC(8): G01M1/12G01M1/10
CPCG01M1/122G01M1/10
Inventor 余林东袁学勤
Owner XIAOGAN BAOLONG ELECTRONICS
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