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Rotary type gravity unloading device

A gravity unloading and rotary technology, which is applied to the simulation device of space navigation conditions, transportation and packaging, space navigation equipment, etc., can solve the problem of insufficient unloading accuracy and achieve the effect of avoiding additional deformation

Active Publication Date: 2019-09-24
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The unloading accuracy of the conventional gravity unloading device is not enough

Method used

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  • Rotary type gravity unloading device
  • Rotary type gravity unloading device
  • Rotary type gravity unloading device

Examples

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Embodiment Construction

[0024] see Figure 1 to Figure 5 , the present invention provides a rotary gravity unloading device 100, including a supporting device, a plurality of combined loading frames and a driving device. The support device comprises a moving cage 1, a fixed cage 2 ring mounted on the moving cage 1, a cage bearing 14 connecting the moving cage 1 and the fixed cage 2, the moving cage 2 rotates along the fixed cage 1, and moves The cage 1 constitutes a pair of rotary kinematics with the fixed cage 2 through the cage bearing 14 . Furthermore, the support device also includes a U-shaped bracket 12 arranged on the fixed base 11 , and the U-shaped bracket 12 is used to support the fixed cage frame 2 .

[0025] The driving device includes a tooling backboard 3 arranged at one end of the moving cage frame 2, a planetary gear train (comprising an internal ring gear 3-2, three planetary gears 4, and a sun gear 5) connected to the tooling backboard, a reduction box 6, and a motor 7. Drive the ...

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Abstract

The invention relates to a rotary type gravity unloading device. The rotary type gravity unloading device comprises a supporting device, a plurality of combination loading frames and a driving device, wherein the supporting device comprises a fixed base, a fixed cage frame arranged on the fixed base and a moving cage frame arranged in the fixed cage frame in a sleeved mode, and the moving cage frame rotates along the fixed cage frame; the multiple combination loading frames are fixed to the moving cage frame and comprise distance compensation frames arranged on the rotary inner wall of the moving cage frame, micro-displacement loaders connected with the distance compensation frames, spiral coarse loading mechanisms and unloading supporting surfaces, and the unloading supporting surfaces are used for supporting unloaded targets; and the driving device comprises a tool back plate arranged at one end of the moving cage frame, a planetary wheel system connected with the tool back plate, a reduction gearbox and a motor, the planetary wheel system is driven by driving of the motor to operate, thus the moving cage frame is driven to rotate, and the moving cage frame rotates relative to the fixed cage frame. The rotary type gravity unloading device is high in unloading accuracy.

Description

technical field [0001] The invention relates to the field of gravity unloading devices for ground tests of aerospace loads or structures, in particular to a rotary gravity unloading device. Background technique [0002] Large-scale cantilevered aerospace loads or structures, such as large-scale space camera structures, need to be unloaded by gravity during the ground assembly and adjustment test, so as to avoid the deformation caused by the gravity of the ground from being coupled to the installation and adjustment, so as to eliminate the change of the gravity state after orbiting caused deformation. Especially when it needs to be installed and adjusted under the state of the horizontal cantilever, and needs to be rotated along the horizontal axis to adjust to different attitudes for assembly and adjustment, the gravity unloading device needs to have the multi-position unloading ability of rotating along the horizontal axis. In addition, it is a commonly used unloading sche...

Claims

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Application Information

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IPC IPC(8): B64G7/00
CPCB64G7/00
Inventor 赵浩江薛闯董吉洪徐抒岩
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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