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High-frequency anti-water-leakage satellite vibration test clamp for large interface expanding

A test fixture and interface expansion technology, applied in the field of vibration test fixtures, can solve problems such as reducing height and increasing frequency, and achieve the effects of increasing frequency, reducing height, and improving work efficiency and safety.

Active Publication Date: 2014-06-25
SHANGHAI INST OF SATELLITE EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the defect that the existing rib-type large-scale vibration test fixture cannot reduce the height and increase the frequency when the interface is more than doubled, and optimize the water leakage prevention method of the fixture to make it easier and safer, the present invention provides a large Interface expansion, high frequency, leak-proof vibration test fixture

Method used

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  • High-frequency anti-water-leakage satellite vibration test clamp for large interface expanding
  • High-frequency anti-water-leakage satellite vibration test clamp for large interface expanding

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Embodiment Construction

[0014] see figure 1 and figure 2 , the satellite vibration test fixture of the high-frequency water-leakage-proof satellite vibration test fixture that the large interface expands of the present invention is to add the solid circular platform of lightening hole, and the diameter of its upper circular platform is phi 2100mm, and the diameter of the lower circular platform is φ 990mm, at the bottom of the circular platform toward the described circle A circular groove is arranged inside the shape, and the bottom of the circular groove is the top slope 4 of the clamp, and 8 edge slope lightening holes 5 are opened on the slope of the circular table on the top slope, and the multiple edge slopes The lightening holes are evenly distributed along the circumferential direction on the top slope, and the edge lightening holes are oblique through holes of φ250mm, which are inclined to the outside of the fixture. One end opening is located on the top slope 4, and the other end opening i...

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Abstract

A high-frequency anti-water-leakage satellite vibration test clamp (1) for large interface expanding is mainly used for expanding the interface size of phi 990mm of a vibration platform to be more than double so as to adapt to installation of a large interface of more than phi 2000mm of a satellite, and is capable of preventing the vibration platform from being damaged by water leakage of a satellite water tank. Furthermore, the high-frequency anti-water-leakage satellite vibration test clamp can meet the requirements of a satellite high-frequency vibration test when first-order resonance frequency of the clamp reaches more than 200Hz. Under the condition that the height and the quality are controlled, the clamp expands the original interface (2) of phi 990mm to be more than double and enables the interface to be an interface (3) of phi 2100mm in a mode that the number of lightening holes of an entity is increased or decreased, high rigidity and frequency are ensured, and the defects that the height cannot be reduced due to a rib plate type clamp without a large expanded interface and accordingly the frequency and the rigidity are remarkably reduced are overcome. A top inclined plane (4) of the clamp inclines from the center to an edge lightening hole and is combined with an edge slant lightening hole (5), a central blind hole type lightening hole (6) and a flow guide groove (7) to enable water leaked from the satellite water tank to flow along the top inclined plane and to be led out of a vibration platform range through the gradient of the edge lightening hole, thereby protecting and preventing vibration platform from being damaged by leaked water and removing complicated work of waterproof cover paving on the clamp due to the fact that an original clamp aims at protecting the vibration platform. The high-frequency anti-water-leakage satellite vibration test clamp for the large interface expanding has the advantages of being low in manufacture cost, excellent in performance, convenient and visual in use, strong in adaptability and generality and the like.

Description

technical field [0001] The invention relates to a vibration test fixture, in particular to a high-frequency leak-proof satellite vibration test fixture with extended large interface. Background technique [0002] The satellite vibration test fixture mainly plays the role of fixing the satellite on the vibration table and transmitting the vibration force. In order to avoid the influence of the fixture's own characteristics on the vibration test, it is generally stipulated that the first-order resonance frequency of the fixture should be higher than the highest frequency point of the test, or greater than More than 3 times the first-order frequency of the satellite. At present, the structural forms of fixtures can be divided into two types, solid type and rib plate type. The former is the most commonly used structural form, which is suitable for the situation where the interface expansion is not large and there is no height requirement. The latter is usually suitable for large...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M7/02
Inventor 张逸波倪跃朱国君黄亚忠
Owner SHANGHAI INST OF SATELLITE EQUIP
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