CN-121978763-A - Unmanned aerial vehicle scalable magnetism surveys sleeve structure

CN121978763ACN 121978763 ACN121978763 ACN 121978763ACN-121978763-A

Abstract

The telescopic magnetic detection sleeve structure of the unmanned aerial vehicle comprises a driving and recycling structure, a locking structure, an auxiliary extension structure and a power-down protection structure, wherein the driving and recycling structure is composed of a motor, a motor shaft, a coil spring, a winch and an ultra-high molecular weight polyethylene rope Dyneema stay wire, the locking structure is achieved by fixing a beryllium copper spring and porcelain beads at the connection position of the lowest end of the inner side of a primary sleeve, the auxiliary extension structure is achieved by fixing an auxiliary extension spring in the sleeve, the auxiliary extension spring is used for assisting in extension and retraction of the sleeve, the power-down protection structure comprises the motor, the coil spring and the auxiliary extension spring, the safety of the magnetic detection device is improved, meanwhile, space is saved, the influence of air current in the air is small, and the gesture of the unmanned aerial vehicle is not interfered.

Inventors

WANG SHUAIGE
LIN ZAISHENG
XUE XIAOBO
ZHANG SHENGKANG

Assignees

北京无线电计量测试研究所

Dates

Publication Date: 20260505
Application Date: 20251226

Claims (10)

1. A telescopic magnetic detection sleeve structure of an unmanned aerial vehicle is characterized by comprising a driving and recycling structure, a locking structure, an auxiliary stretching structure and a power-down protection structure, wherein, The driving and recycling structure is composed of a motor, a motor shaft, a coil spring, a winch and an ultra-high molecular weight polyethylene rope Dyneema stay wire; The locking structure is realized by fixing the beryllium copper spring and the porcelain bead at the joint of the lowest end of the inner side of the upper-stage sleeve; the auxiliary extension structure is realized by fixing an auxiliary extension spring in the sleeve, wherein the auxiliary extension spring is used for assisting in extension and retraction of the sleeve; the power failure protection structure comprises a motor, a coil spring and an auxiliary extension spring.
2. The telescopic magnetic detection sleeve structure of the unmanned aerial vehicle according to claim 1, wherein the sleeve is of a telescopic structure, and the main structure of the telescopic structure is composed of a plurality of sections of sleeves with self-defined sections.
3. The unmanned aerial vehicle scalable magnetic detection sleeve structure of claim 2, wherein the locking structure further comprises a pit outside the next-stage sleeve, the pit is respectively arranged at the top end and the bottom end outside the next-stage sleeve, and the angles are respectively 30 degrees and 45 degrees.
4. A telescopic magnetic probe sleeve structure according to claim 3, wherein during up and down movement of the sleeve, the inner sleeve outer wall compresses the spring, and when encountering a pit, the beryllium copper spring expands and snaps into the pit to lock.
5. The unmanned aerial vehicle scalable magnetic detection sleeve structure of claim 4, wherein the unmanned aerial vehicle scalable magnetic detection sleeve structure is mounted on an undercarriage of the unmanned aerial vehicle by a clasp of a scalable magnetic sleeve mount.
6. The telescopic magnetic detection sleeve structure of the unmanned aerial vehicle is characterized in that an onboard computer and a motor are mounted on a telescopic magnetic sleeve base, the onboard computer is used for transmitting data and sending extension and retraction commands, a coil spring and a winch are connected to a shaft of the motor, and Dyneema stay wires are wound on the winch.
7. The unmanned aerial vehicle scalable magnetic detection sleeve structure of claim 6, wherein keys are provided on the outer sleeve and slots are provided on the inner sleeve wall, and wherein the keyways are provided to prevent rotational misalignment of the sleeve.
8. The telescopic magnetic detection sleeve structure of the unmanned aerial vehicle according to claim 7, wherein one end of the Dyneema wire is connected to the innermost section of the sleeve, the other end of the Dyneema wire is connected to the winch, the Dyneema wire is the sum of the lengths of the sleeve when being stretched, and the pull wire is kept in a stretched state.
9. The retractable magnetic detection sleeve structure of claim 8, wherein if the retractable magnetic detection sleeve structure of the unmanned aerial vehicle fails and the retractable sleeve cannot be retracted, the lowest section of the sleeve first touches the ground when the unmanned aerial vehicle descends, and the locking between the sleeve walls is released by upward force after touching the ground, so that the sleeve is retracted step by step.
10. The unmanned aerial vehicle scalable magnetic probe sleeve structure of claim 9, wherein the sleeve is made of carbon fiber material.

Description

Unmanned aerial vehicle scalable magnetism surveys sleeve structure Technical Field The invention relates to the technical field of unmanned aerial vehicle aviation magnetic anomaly detection, in particular to a telescopic magnetic detection sleeve structure of an unmanned aerial vehicle. Background Magnetic detection is one of important development directions of non-acoustic detection, and is widely applied to the fields of geological exploration, unexplosive detection, underwater early warning, mineral resource census and the like by virtue of excellent cross-medium propagation characteristics. Traditional manual magnetic detection modes are limited by complex terrain environments, and are high in execution difficulty and low in efficiency. Carrier magnetic detection technology, represented by aeromagnetic detection, has become the primary means of magnetic anomaly detection since the twentieth century. The detection structures of the aeromagnetic system of the unmanned aerial vehicle in the current market are mainly three types, namely a suspension cable type, a vertical rod type and a flat rod type. The suspended cable depends on the rope to connect magnetometer and unmanned aerial vehicle, and is far away from unmanned aerial vehicle fuselage, and data are difficult for receiving unmanned aerial vehicle to interfere and not influenced in the aspect of taking off and landing, but when the aerial effect, receive the air current influence to lead to the magnetometer to swing, are absorbed into the dead zone easily, seriously influence operating efficiency. The upper vertical rod type magnetometer is located above the unmanned aerial vehicle, so that the unmanned aerial vehicle can conveniently take off and land, but the collected data are greatly affected by the unmanned aerial vehicle, and the lower vertical rod type magnetometer is inconvenient to take off and land. The flat pole type lifting is convenient, but the occupied volume of the unmanned aerial vehicle is large, the data are easily influenced by the unmanned aerial vehicle body, and the magnetic data need to be compensated to cause greater working difficulty. Therefore, how to improve the safety of the magnetic detection device and save the space becomes one of the prior art problems to be solved. Disclosure of Invention The invention provides a telescopic magnetic detection sleeve structure of an unmanned aerial vehicle, which is used for improving the safety of a magnetic detection device and saving space. In a first aspect, a telescopic magnetic detection sleeve structure of an unmanned aerial vehicle is provided, comprising a driving and recycling structure, a locking structure, an auxiliary stretching structure and a power-down protection structure, The driving and recycling structure is composed of a motor, a motor shaft, a coil spring, a winch and an ultra-high molecular weight polyethylene rope Dyneema stay wire; The locking structure is realized by fixing the beryllium copper spring and the porcelain bead at the joint of the lowest end of the inner side of the upper-stage sleeve; the auxiliary extension structure is realized by fixing an auxiliary extension spring in the sleeve, wherein the auxiliary extension spring is used for assisting in extension and retraction of the sleeve; the power failure protection structure comprises a motor, a coil spring and an auxiliary extension spring. In one embodiment, the sleeve is a telescopic structure, and the main structure of the telescopic sleeve is composed of a plurality of sections of sleeves with self-defined sections. In one embodiment, the locking structure further comprises a pit outside the next-stage sleeve, wherein the pit is respectively arranged at the top end and the bottom end outside the next-stage sleeve, and the angles are respectively 30 degrees and 45 degrees. In one embodiment, the inner sleeve outer wall compresses the spring during up and down movement of the sleeve, and the beryllium copper spring expands into the pocket to lock when encountering the pocket. In one embodiment, the unmanned aerial vehicle scalable magnetic detection sleeve structure is mounted on the landing gear of the unmanned aerial vehicle by a buckle of the scalable magnetic sleeve base. In one embodiment, an onboard computer and a motor are mounted on the telescopic magnetic sleeve base, the onboard computer is used for transmitting data and sending extension and retraction commands, a coil spring and a winch are connected to the motor, and a Dyneema stay wire is wound on the winch. In one embodiment, the outer sleeve is keyed and the inner sleeve wall is grooved and keyed to prevent rotational misalignment of the sleeve. In one embodiment, one end of the Dyneema wire is connected to the innermost section of the sleeve, the other end is connected to the winch, and the Dyneema wire has a length equal to the sum of the lengths of the sleeve when the wire is stretched and keeps the wire in a taut state