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Large-lift air flotation high-precision gravity unloading device

An unloading device and high-precision technology, applied in the field of aerospace, can solve the problems of insufficient technology of microgravity and low gravity simulation equipment, and achieve the effects of compact structure, reduced damping and elimination of influence

Active Publication Date: 2016-05-25
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a large-lift air flotation high-precision gravity unloading device, in order to solve the problem of insufficient existing microgravity and low gravity simulation equipment technology

Method used

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  • Large-lift air flotation high-precision gravity unloading device
  • Large-lift air flotation high-precision gravity unloading device
  • Large-lift air flotation high-precision gravity unloading device

Examples

Experimental program
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Effect test

specific Embodiment approach 1

[0011] Specific implementation mode one: combine figure 1 , figure 2 As shown, it includes base 1, code disc type small power motor 2, small range torque sensor 3, first air bearing 4, large diameter reel 5, small diameter reel 6, second air bearing 7, unilateral Air-floating normally closed clutch 8, large-range torque sensor 9, reducer 10, brake 11, code disc type high-power motor 12, reciprocating sliding platform assembly 13, first pulley 14, second pulley 15, third pulley 16 , counterweight block 17, first sling rope 18, second sling rope 19;

[0012] The right end face of the large-diameter reel 5 is coaxially connected with the left end face of the small-diameter reel 6; the left side shaft of the large-diameter reel 5 is mounted on the base 1 through the first air bearing 4, and the small-diameter reel The right side shaft of 6 is installed on the base 1 through the rotation of the second air bearing 7, code disc type small power motor 2, code disc type high power m...

specific Embodiment approach 2

[0019] Specific implementation mode two: combination figure 1 , image 3As shown, this specific embodiment adds a low-friction cylinder 21 with a potentiometer on the basis of the specific embodiment one; the base of the low-friction cylinder 21 with a potentiometer is installed on the sliding platform of the reciprocating sliding platform assembly 13, The pulley 21-1 on the piston rod end of the low-friction cylinder 21 with a potentiometer rotates on the first sling rope 18 between the large-diameter reel 5 and the first pulley 14, and the low-friction cylinder with a potentiometer 21 is used to simulate the action of a low stiffness spring. Other compositions and connections are the same as in the first embodiment. This specific embodiment is for working in low-gravity simulation and zero-gravity non-suspension motion simulation situations.

[0020] The model of the low-friction cylinder 21 with potentiometer is SCSA6378S0+KTC-125.

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Abstract

The invention relates to a high-lift air flotation high-precision gravitational unloading device, which belongs to the aeronautic and astronautic technical field of ground microgravity simulation experiment platforms. The invention is intended to solve the problem that defects exist in conventional microgravity and low-gravity simulation equipment. A code disc type low-power electromotor, a code disc type high-power electromotor, a unilateral air flotation normally-closed clutch, a third pulley, a speed reducer and a brake of the high-lift air flotation high-precision gravitational unloading device are mounted on a base, and the output rotary shaft of the code disc type low-power electromotor is in coaxiality and transmission connection with the left shaft of a large-diameter winding drum through a narrow-range torque sensor; the output rotary shaft of the code disc type high-power electromotor is in transmission connection with the right shaft of a small-diameter winding drum through the speed reducer, a wide-range torque sensor and the unilateral air flotation normally-closed clutch; after getting out of the groove of the large-diameter winding drum at a tangent, a first sling enters the groove of a first pulley. The high-lift air flotation high-precision gravitational unloading device is structurally compact; since a variety of air flotation devices are adopted, the motion damp of the device parts is reduced, the influence of part vibration is eliminated, the precision is high, and the reliability is high.

Description

technical field [0001] The invention belongs to the field of aerospace technology of a ground microgravity simulation experiment platform. Background technique [0002] In order to reduce the development cost of aerospace equipment, improve reliability, and shorten the R&D cycle, it is necessary to check the entire life of equipment such as equipment functions, performance indicators, work reliability, operating procedures, failure modes, and countermeasures on the ground during the R&D process or before launch. All problems that may be faced during the cycle are verified as efficiently as possible to help designers find design defects as early as possible, modify and verify them, and help operators and managers formulate reasonable operating procedures and reliable emergency response measures , familiar with the operation process. However, since the structural design and material use of aerospace equipment are mostly adapted to low launch load requirements and low-gravity ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64G7/00
Inventor 卢鸿谦刘国平丁戍辰尹航班晓军
Owner HARBIN INST OF TECH