Lunar soil concrete preparation vehicle based on material extrusion forming technology and application of lunar soil concrete preparation vehicle

Abstract

The invention belongs to the technical field of spaceflight, and particularly relates to a lunar soil concrete preparation vehicle based on a material extrusion forming technology and application of the lunar soil concrete preparation vehicle. The lunar soil concrete preparation vehicle comprises a lunar soil collecting system, a lunar soil conveying system and a concrete preparation and split charging system, the lunar soil collecting system is used for grabbing and collecting lunar soil in situ, and the lunar soil conveying system is used for conveying the lunar soil collected by the lunar soil collecting system to the concrete preparation and split charging system; and the concrete preparation and split charging system comprises a central collecting plate (18), an outer pressure-bearing box (19) installed on the central collecting plate (18), a transverse push rod (17) arranged right in front of the outer pressure-bearing box (19), a longitudinal push rod (5) arranged on the side of the outer pressure-bearing box (19) and a lunar soil pressing box (4) which is arranged in the axial direction of the outer pressure-bearing box (19) and can move in the axial direction. The lunar soil pressing box (4) is connected with a transmission mechanism to control the axial reciprocating motion of the transmission mechanism. The preparation technology of the lunar soil concrete preparation vehicle is not affected by external conditions, and preparation of lunar soil concrete can be completed only by mechanical extrusion. The lunar soil concrete preparation vehicle is free of precise instruments, high in loss resistance, firm, durable and easy to maintain. In addition, the lunar soil concrete preparation vehicle is easy to operate, low in vehicle weight and easy to transfer and transport.

Description

technical field [0001] The invention belongs to the field of aerospace technology, and in particular relates to a lunar soil concrete preparation vehicle based on material extrusion molding technology and its application. Background technique [0002] Nowadays, my country's lunar exploration project is developing rapidly, and establishing a long-term living and scientific research base on the moon has gradually become an achievable plan. At present, many researches have been carried out around the construction of lunar surface bases at home and abroad, and some achievements have been made. However, due to the particularity of the lunar surface environment and the challenges in the preparation of lunar soil concrete, there are still some problems in this technology. There are many problems and technologies to be solved and breakthroughs. For example, the preparation process of lunar soil concrete is simplified, and the investment in equipment is reduced to reduce the weight ...

AI Technical Summary

Problems solved by technology

[0003] Most of the currently disclosed technologies use 3D printing technology to prepare lunar soil "concrete", but they have at least the following disadvantages: there are problems on the moon such as high vacuum, high temperature, low temperature, large temperature difference between high and low temperatures, and light gravity.

Under the above extreme conditions, there is a problem of unstable slurry performance. Therefore, when 3D printing is extruded, it is easy to block or even scrap the print head due to the fast curing speed of the slurry during 3D printing extrusion. The "concrete" printed by 3D is unstable and large. The continuous filling of batches of slurry is likely to cause a series of problems such as pipe bursts

In addition, the launch cost of mixed pulping in 3D printing technology is relatively large, and energy consumption is relatively large

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