Moon soil sampling device

Abstract

The invention provides a moon soil sampler, pertains to the field for detecting spatial resources, which comprises a casing, a power part in the casing, and a rod-changing section. The power part comprises a lifting motor, a drive gear, a ball screw, a screw nut, a connection disc, a rotation motor, a joint and a guideway that are sequentially connected. The rod-changing section comprises a gear box, a rotary shaft connected with the gear box, a 2-jaw clamp on the rotary shaft, an end gear ring positioner and a 1-jaw clamp that are arranged at the end of the rotary shaft and are connected with each other. On the 2-jaw clamp, a hollow drill rod with outer thread is provided. The invention is compact, light, with low energy consumption, can automatically sample in deep layer, can take all soil sample from the moon surface to the sampled depth, and can keep the sample basically as it is, and allows easy recovery.

Description

technical field [0001] The invention belongs to the field of space resource detection, in particular to a lunar soil sampler used for lunar detection. Background technique [0002] The moon is the only natural satellite of the earth, the closest celestial body to the earth, and the extraterrestrial planet with the highest degree of human exploration and research. Therefore, the moon is the first choice for human beings to go deep into space, and it is also an outpost for human beings to explore space and develop and utilize space resources. with transfer station. With the increasing demand for space applications, the continuous maturity of major space technologies such as manned spaceflight, and the needs of space military activities, the moon has become the primary goal of deep space exploration in the 21st century. At present, countries and organizations such as the United States, Japan, the European Space Agency, Russia, India and China have formulated plans for lunar ex...

AI Technical Summary

Problems solved by technology

The samplers used in the earth's soil are all sampled by manual extrusion or pressing down with a high-power electric hammer. This kind of sampler has the characteristics of large size and heavy weight, and its rod changing actions are all completed by manual assistance. Realize automatic rod change, so it cannot be used for lunar soil sampling

[0006] There have been successful lunar soil sampling experiences in foreign countries. For example, Apollo 11 in the United States retrieved lunar soil samples for the first time in human history, but it was manually sampled; Luna 16 in the Soviet Union realized automatic sampling of lunar soil for the first time. However, its relevant sampling principle has never been disclosed to the outside world as a secret; the SurveyorIII in the United States can also sample lunar soil, but it can only dig out the outermost lunar soil through a mechanical arm driving a shovel-shaped sampling claw, so the sampling depth is very low. limited

In addition, some foreign scholars have also proposed various sampler schemes, but they also have design flaws

For example, the US JetPropulsion Laboratory proposed the USDC sampler, which uses a cable to suspend the sampler for sampling. The sampler is relatively small, but its sampling direction is uncertain, and it is easily affected by the sampling medium. In the soil, a heavy hammer needs to be added, which increases the extra load and is inconvenient to carry into space; although a medium-depth sampler in Maryland, USA can collect deeper samples, but its volume, weight and energy consumption are large, it cannot It is applied to lunar sampling; there is also a carpenter oviduct sampler, which breaks the soil by moving up and down the two halves of the stepped rod, and transports it to the ground. It is lighter in weight and consumes less energy, but the The samples are mixed together and cannot remain the same, so the samples collected by it are of little value for subsequent analysis; there is also a spiral guide sampler, which collects samples through a solid wide spiral drill pipe. When drilling down, the sample will enter the space between the helices and move up along the helix, and finally extract the drill pipe, and the sample will be taken out of the ground by the drill pipe helix. The disadvantage of this solution is that it is prone to stuck pipe and the sample is inconvenient to collect; In addition, there is also the idea of ​​laser drilling sampling. Although the prospect is good, the current technology is not yet mature.

Moreover, the above schemes have a common disadvantage, that is, they are all single-shot sampling, so the sampling depth will have great limitations.

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