A precision instrument vibration isolation platform

A vibration isolation platform, precision instrument technology, applied in vibration suppression adjustment, spring/shock absorber, non-rotation vibration suppression, etc., to achieve high reliability performance requirements, increase bearing capacity, and improve the effect of on-orbit working environment requirements

Active Publication Date: 2022-03-04
BEIJING INST OF SPACECRAFT SYST ENG
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is: in view of the existing precision measuring instrument, which is affected by the interference of the external environment in the use process and its test accuracy is affected, a support vibration isolation device with a space three-way equal stiffness layout design is proposed to realize vibration isolation Concentrated distribution of low-order modal frequencies of the system effectively reduces and suppresses the impact of external environmental interference on test accuracy

Method used

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  • A precision instrument vibration isolation platform
  • A precision instrument vibration isolation platform
  • A precision instrument vibration isolation platform

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Embodiment Construction

[0044] The present invention will be further described below in conjunction with the accompanying drawings.

[0045] The invention proposes a passive vibration isolator with variable stiffness, which overcomes the problems that the existing passive vibration isolator cannot adjust the stiffness, and the active vibration isolation system is complicated and reliable. By adjusting the pre-tightening compression of the buffer rubber pad in two directions, the variable stiffness adjustment is realized. At the same time, the vibration isolation device has a limit locking protection function, which greatly improves the test stability and safety. And it realizes the integrated design of driving, which can realize rapid use in complex test environments and improve test efficiency.

[0046] Such as Figure 1~2 As shown, in this embodiment, a precision instrument vibration isolation platform adopts a triangular sandwich structure, including a load platform module A, a vibration isolati...

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Abstract

The invention discloses a precision instrument vibration isolation platform. Including load platform module, vibration isolation system module and mobile support module. The three modules of the vibration isolation device are distributed from top to bottom, wherein the vibration isolation system module (composed of three vibration isolator components) is located in the middle, and the load platform module and the mobile support module are respectively connected up and down. The vibration isolation system module designed in the present invention is a closed multi-group parallel structure, which has the characteristics of large bearing capacity and good stability; at the same time, the vibration isolator component adopts a 3.6 spring oblique convergent support design to realize Three-way equal stiffness and equal fundamental frequency functions have good vibration reduction and isolation performance; in addition, the vibration isolation devices are equipped with limit locking components in parallel, which can play a limit protection role for precision measuring instruments and have better safety. sex. The whole vibration isolation device adopts the integrated design of driving, which is movable and lockable, convenient and fast, and has strong environmental adaptability. The overall structure is simple, the manufacturing cost is low, and the application prospect is broad.

Description

technical field [0001] The invention discloses a precision instrument vibration isolation platform, which belongs to the technical field of precision testing equipment and vibration reduction and isolation. Background technique [0002] Precision measuring instrument is a high-precision and large-scale measuring instrument commonly used in industrial measuring systems (including laser tracker, latitude and longitude measuring instrument, laser interferometer and micro-deformation optical measuring system, etc.). It integrates laser interferometric ranging technology, photoelectric detection technology, and precision mechanical testing technology to track and capture space-moving targets, and performs real-time high-precision measurement calculations on the three-dimensional coordinates of the target body. During the actual use of these high-precision testing instruments, their testing accuracy will be affected by many factors such as the external environment, instrument brac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F15/08F16F15/04
CPCF16F15/085F16F2228/066
Inventor 吴琼朱佳林罗文波罗敏罗婕
Owner BEIJING INST OF SPACECRAFT SYST ENG
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