Large-scale rotary load high-precision dynamic balance measuring device for spacecraft

A measuring device, high-precision technology, applied in the direction of measuring device, static/dynamic balance test, machine/structural component test, etc., to achieve the effect of improving measurement accuracy, valid test data, and reducing residual dynamic unbalance

Active Publication Date: 2012-08-29
SHANGHAI SATELLITE ENG INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the problem that existing dynamic balancing machines cannot effectively balance large-scale rotating loads of a class of spacecraft, the purpose of the present invention is to propose a high-precision double-sided verti

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  • Large-scale rotary load high-precision dynamic balance measuring device for spacecraft
  • Large-scale rotary load high-precision dynamic balance measuring device for spacecraft
  • Large-scale rotary load high-precision dynamic balance measuring device for spacecraft

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Embodiment Construction

[0022] Embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0023] figure 1 It is a structural block diagram of a large-scale rotating load high-precision dynamic balance measuring device for a spacecraft according to the present invention. Specifically, the spacecraft large-scale rotating load high-precision dynamic balancing measuring device provided by the present invention includes: an air-floating spindle system 1, a drive system 2, a measuring System 3, data processing and display system 4, machine body 5, working turntable 6. The invention is especially suitable for the dynamic balance of large low-speed rotating parts. in:

[0024] The air-floating spindle system 1 is used to support the working turntable and the measured object, and accurately transmit force and torque. The air-floating spindle system 1 includes an air-floating spindle, a gas cylinder 105, and an air supply pipeline 106. The air-floating spind...

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Abstract

The invention relates to a large-scale rotary load high-precision dynamic balance measuring device for an spacecraft, which comprises an air main shaft system, a driving system, a measuring system and a data processing and displaying system. The large-scale rotary load high-precision dynamic balance measuring device for the spacecraft is characterized in that the dynamic balance measuring device comprises two measuring modes; in one mode, a tested object is driven by a driving system contained in a dynamic balancing machine; in the other mode, the tested object is driven by a self driving device; and both modes have even and static balance measuring and balancing functions. Furthermore, a support system adopts a high-rigidity and superlow-friction air bearing system; an air main shaft comprises a plurality of air components and adopts a gaseous static pressure mode to separate inner and outer air sleeves as well as upper and lower air plates; the inner and the outer air sleeves provide radial restraint and accurately transmit the radial acting force; and the upper and the lower air plates have sufficient rotation rigidity perpendicular to the rotating shaft and can ensure that the unbalanced quantity of an object can be measured by the air main shaft under a small-friction and low-resistance condition. The large-scale rotary load high-precision dynamic balance measuring device provided by the invention is applicable to the large-scale rotary load high-precision low-velocity dynamic balance measurement of the spacecraft.

Description

technical field [0001] The invention belongs to the technical field of rotor dynamic balance correction, in particular to a dynamic balance measurement device, and more specifically relates to a high-precision dynamic balance measurement device for a large rotating load of a spacecraft. Background technique [0002] Due to various reasons such as materials, processing, assembly, etc., there are problems such as uneven mass distribution and unexpected assembly gaps in the rotating parts, which cause dynamic imbalance and affect the accuracy and life of the rotating parts. For the rotating parts of the spacecraft, the disturbance torque caused by the dynamic imbalance will affect the stability of the satellite platform, thereby affecting the normal operation of the entire satellite. Therefore, it is of great significance to control the dynamic balance of the rotating parts of the spacecraft. [0003] Due to the particularity of the structure and operating state of satellites ...

Claims

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Application Information

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IPC IPC(8): G01M1/16
Inventor 薛孝补余小方莫慧一杨立峰
Owner SHANGHAI SATELLITE ENG INST
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