A multi-stage synchronous lifting device based on carbon fiber cylinder

Abstract

The invention provides a multistage synchronous lifting device based on carbon fiber barrels. Lifting power is provided by multiple stages of sleeve type stepped lead screws, torque is transferred among the lead screws through internal and external splines adopted for the lead screws, a main body supporting barrel is made from carbon fiber materials, a guide rail structure is embedded into the main body supporting barrel in the circumferential direction, lifting rather than rotation of carbon fibers is achieved through a guide assembly through the cooperation of the guide rail structure and aguide assembly installed on the previous stage of carbon fiber barrel, and therefore torque transferred to lead screw nuts when the lead screws ascend and descend is eliminated. A motor is adopted todrive a worm wheel and a worm to achieve holding and looseness of a holding ring of a locking mechanism, and sensing value changes of a pressure sensor are adopted as feedback signals to automaticallycontrol holding and looseness of the holding ring. The bottom of each stage of lifting barrel is provided with a guide assembly to be matched with the inner wall of the next carbon fiber barrel, a guide ring is installed inside a holding ring installed on the next carbon fiber barrel to be matched with the outer wall of the corresponding lifting barrel, and two-stage guide for lifting of the corresponding carbon fiber barrel is achieved. In the whole device, the motor is adopted to drive a worm gear reducer for driving, and the whole device has the advantages of being good in stability, low in heat expansion coefficient, automatic in lifting, free of disassembly and assembly and convenient to transport.

Description

technical field [0001] The invention is a multi-stage synchronous lifting device based on a carbon fiber tube, which belongs to the field of manufacturing inspection, and is directly applied to an omnidirectional mobile automatic lifting large-scale precise measurement support device to realize the parts of large-scale aircraft, space stations, rockets, antennas and other large-scale equipment. Set up the automatic lifting operation of large-scale precision measuring equipment during assembly and final assembly, and keep the stability of large-size precision measuring equipment after lifting. Background technique [0002] There are many types of telescopic mechanisms in the lifting device. According to the different properties of the lifting mechanism, they can be divided into three categories: one is the rigid lifting mechanism, which mainly uses the rigid characteristics of the mechanism to directly lift or push the platform; the other is the flexible lifting mechanism. , ...

AI Technical Summary

Problems solved by technology

[0007] All the above mechanisms are generally made of steel or aluminum, and there is still a problem of large thermal expansion coefficient. When long-term precision measurement is carried out at an altitude of 10m, a temperature change of 1°C will cause a change of about 0.1mm, and a change of 5°C will cause a change of about 0.1mm. Causes a 0.5mm equipment change, so it is difficult to meet the needs of long-term precise measurement

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