Lunar soil / rock micro-disturbance drilling while drilling hole wall plugging type reinforcement system

Abstract

This invention discloses a borehole wall reinforcement system for lunar soil / rock micro-drilling, comprising a borehole wall reinforcement cavity, a borehole wall reinforcement film, a borehole wall reinforcement torque transmission motor, a borehole wall reinforcement torque transmission gear, a borehole wall reinforcement torque transmission gear shaft, a gear shaft mounting base, a borehole wall reinforcement torque transmission roller, a borehole wall reinforcement transmission rope, a borehole wall reinforcement friction contact wheel, a borehole wall reinforcement transmission shaft, and a first window. During drilling, an active borehole wall reinforcement mode is adopted, utilizing a method of detaching multiple layers of borehole wall reinforcement film from the drilling tool system layer by layer and tightly adhering to the borehole wall to achieve real-time support of the borehole wall, thereby ensuring the stability of the borehole and providing stable and safe in-hole conditions for the smooth implementation of drilling and sampling.

Description

Technical Field

[0001] This invention relates to the field of exploration and drilling technology for extraterrestrial bodies such as the Moon and Mars, and in particular to a borehole wall containment reinforcement system for micro-disturbance drilling of lunar soil / rock. Background Technology

[0002] To address the bottlenecks in lunar (extraterrestrial) drilling, such as the large weight of drilling equipment, the complexity of automation due to numerous drilling actions, the difficulty in forming holes due to unstable borehole walls, the large disturbance of lunar soil, the difficulty in advancing and sampling rock blocks in the soil, the difficulty in maintaining and storing lunar soil (rock) samples, the tendency for borehole deviation, and the difficulty in dissipating heat from rock breaking by the drill bit, a dual-drill-bit biomimetic self-balancing lunar soil (rock) micro-disturbance drilling and sampling technology has been invented, which can effectively solve the above problems.

[0003] In order to strengthen and reinforce the borehole wall during continuous drilling using the dual-drill-bit biomimetic self-balancing lunar soil (rock) micro-drilling sampling technology, ensuring borehole stability, creating conditions for the normal operation of drilling tools inside the borehole and further increasing the sampling depth, it is essential to invent a lunar soil (rock) micro-drilling borehole wall containment reinforcement system. Summary of the Invention

[0004] The purpose of this invention is to address the problems and shortcomings described in the background art by providing a borehole wall containment reinforcement system for lunar soil / rock micro-disturbance drilling.

[0005] A borehole wall reinforcement system for lunar soil / rock micro-drilling includes a borehole wall reinforcement cavity, a borehole wall reinforcement film, a borehole wall reinforcement torque transmission motor, a borehole wall reinforcement torque transmission gear, a borehole wall reinforcement torque transmission gear shaft, a gear shaft mounting base, a borehole wall reinforcement torque transmission roller, a borehole wall reinforcement transmission rope, a borehole wall reinforcement friction contact wheel, a borehole wall reinforcement transmission shaft, and a first window.

[0006] The upper and lower ends of the hole wall strengthening cavity are coaxially and fixedly connected to the self-propelled movable outer shell and the self-propelled drag-increasing outer shell, respectively. The hole wall strengthening cavity is equipped with a hole wall strengthening film placement chamber, a gear shaft mounting seat, and a first window. The hole wall strengthening film is placed in the hole wall strengthening film placement chamber, and the hole wall strengthening friction contact wheel is installed in the first window. The hole wall strengthening torque transmission gear shaft is rotatably connected to the gear shaft mounting seat. The hole wall strengthening torque transmission gear and the hole wall strengthening torque transmission roller are both coaxially and fixedly connected to the hole wall strengthening torque transmission gear shaft. The hole wall strengthening torque transmission motor is coaxially and fixedly connected to the hole wall strengthening cavity. The hole wall strengthening torque transmission motor and the hole wall strengthening torque transmission gear are connected through bevel gear meshing. The hole wall strengthening transmission shaft is rotatably mounted in the first window. The hole wall strengthening friction contact wheel is fixedly connected to the hole wall strengthening transmission shaft. The hole wall strengthening friction contact wheel and the hole wall strengthening torque transmission roller are kinematically linked through the hole wall strengthening transmission rope. The hole wall strengthening friction contact wheel and the hole wall strengthening film are always in contact. During operation, the hole wall strengthening torque transmission motor drives the hole wall strengthening torque transmission gear to rotate, and through the hole wall strengthening torque transmission gear shaft, it drives the hole wall strengthening torque transmission roller to rotate. Under the transmission of the hole wall strengthening transmission rope, the hole wall strengthening transmission shaft rotates, which in turn drives the hole wall strengthening friction contact wheel to rotate. Due to the frictional resistance between the hole wall strengthening friction contact wheel and the hole wall strengthening film, the hole wall strengthening film is displaced.

[0007] The beneficial effects of this invention are:

[0008] During the drilling process, an active borehole wall reinforcement mode is adopted. By using a multi-layer borehole wall reinforcement film to gradually detach from the drilling tool system and fit tightly with the borehole wall, real-time support of the borehole wall is achieved, thereby ensuring the stability of the borehole and providing stable and safe borehole conditions for the smooth implementation of drilling and sampling. Attached Figure Description

[0009] Figure 1 This is a three-dimensional sectional view of the present invention.

[0010] Figure 2 for Figure 1 A magnified view of a portion of point B in the middle.

[0011] Figure 3 This is a three-dimensional schematic diagram of a pore wall reinforced film. Detailed Implementation

[0012] See Figures 1-3 As shown, a borehole wall reinforcement system for lunar soil / rock micro-drilling includes a borehole wall reinforcement cavity 139, a borehole wall reinforcement film 140, a borehole wall reinforcement torque transmission motor 141, a borehole wall reinforcement torque transmission gear 142, a borehole wall reinforcement torque transmission gear shaft 143, a gear shaft mounting seat 144, a borehole wall reinforcement torque transmission roller 145, a borehole wall reinforcement transmission rope 146, a borehole wall reinforcement friction contact wheel 147, a borehole wall reinforcement transmission shaft 148, and a first window 169.

[0013] The upper and lower ends of the hole wall strengthening cavity 139 are coaxially and fixedly connected to the self-propelled movable outer shell 132 and the self-propelled drag-increasing outer shell 138, respectively. The hole wall strengthening cavity 139 is provided with a hole wall strengthening film placement chamber 168, a gear shaft mounting seat 144, and a first window 169. The hole wall strengthening film 140 is placed in the hole wall strengthening film placement chamber 168, the hole wall strengthening friction contact wheel 147 is installed in the first window 169, and the hole wall strengthening torque transmission gear shaft 143 is rotatably connected to the gear shaft mounting seat 144. The hole wall strengthening torque transmission gear 142 and the hole wall strengthening torque transmission roller 145 are both connected to the hole wall strengthening torque transmission gear. The wheel axle 143 is coaxially fixedly connected, the hole wall reinforced torque transmission motor 141 is coaxially fixedly connected to the hole wall reinforced cavity 139, the hole wall reinforced torque transmission motor 141 and the hole wall reinforced torque transmission gear 142 are connected by bevel gear meshing, the hole wall reinforced transmission shaft 148 is rotatably mounted on the first window 169, the hole wall reinforced friction contact wheel 147 is fixedly connected to the hole wall reinforced transmission shaft 148, the hole wall reinforced friction contact wheel 147 and the hole wall reinforced torque transmission roller 145 are motionally linked by the hole wall reinforced transmission rope 146, and the hole wall reinforced friction contact wheel 147 and the hole wall reinforced film 140 are always in contact. During operation, the hole wall reinforcement torque transmission motor 141 drives the hole wall reinforcement torque transmission gear 142 to rotate, and through the hole wall reinforcement torque transmission gear shaft 143, it drives the hole wall reinforcement torque transmission roller 145 to rotate. Under the transmission of the hole wall reinforcement transmission rope 146, the hole wall reinforcement transmission shaft 148 rotates, which ultimately drives the hole wall reinforcement friction contact wheel 147 to rotate. Due to the frictional resistance between the hole wall reinforcement friction contact wheel 147 and the hole wall reinforcement film 140, the hole wall reinforcement film 140 is displaced.

[0014] To further explain, a reinforcing film sliding ramp 163 is provided below the hole wall reinforcing film placement chamber 168. In the initial state, due to the obstruction effect of the reinforcing film sliding ramp 163 on the hole wall reinforcing film 140, the hole wall reinforcing film 140 cannot detach from the hole wall reinforcing film placement chamber 168 by its own weight alone. Only during operation, with the help of the frictional resistance between the reinforcing film and the hole wall reinforcing friction contact wheel 147, can the hole wall reinforcing film 140 be driven to detach from the hole wall reinforcing film placement chamber 168 and fit tightly against the hole wall, thereby completing the hole wall reinforcing process.

[0015] To further explain, the borehole wall reinforcing film 140 is generally cylindrical with a notch, with a diameter slightly larger than the borehole diameter, and its outer surface is provided with many friction-increasing protrusions 170 to increase the friction between it and the borehole wall. During operation, several borehole wall reinforcing films 140 can be nested together according to the drilling depth and placed in the borehole wall reinforcing film placement chamber 168 in a slightly compressed state. When the borehole wall reinforcing film 140 slides out of the borehole wall reinforcing film placement chamber 168, it will recover its original shape by its own tension and fit tightly against the borehole wall.

Claims

1. A lunar soil / rock micro-disturbance drilling while drilling borehole wall containment augmentation system, characterized by: The hole wall strengthening cavity (139), the hole wall strengthening film (140), the hole wall strengthening torque transmission motor (141), the hole wall strengthening torque transmission gear (142), the hole wall strengthening torque transmission gear shaft (143), the gear shaft mounting seat (144), the hole wall strengthening torque transmission roller (145), the hole wall strengthening transmission rope (146), the hole wall strengthening friction contact wheel (147) and the hole wall strengthening transmission shaft (148), the first window (169); The hole wall strengthening cavity (139) is coaxially fixedly connected with the self-walking movable shell (132) and the self-walking resistance increasing shell (138) at the upper and lower ends, the hole wall strengthening cavity (139) is provided with a hole wall strengthening film placing chamber (168), a gear shaft mounting seat (144) and a first window (169), the hole wall strengthening film (140) is placed in the hole wall strengthening film placing chamber (168), the hole wall strengthening friction contact wheel (147) is installed in the first window (169), the hole wall strengthening torque transmission gear shaft (143) is rotatably connected to the gear shaft mounting seat (144), the hole wall strengthening torque transmission gear (142) and the hole wall strengthening torque transmission roller (145) are coaxially fixedly connected with the hole wall strengthening torque transmission gear shaft (143), the hole wall strengthening torque transmission motor (141) is coaxially fixedly connected with the hole wall strengthening cavity (139), the hole wall strengthening torque transmission motor (141) is meshingly connected with the hole wall strengthening torque transmission gear (142) through bevel gears, the hole wall strengthening transmission shaft (148) is rotatably installed in the first window (169), the hole wall strengthening friction contact wheel (147) is fixedly connected with the hole wall strengthening transmission shaft (148), the hole wall strengthening friction contact wheel (147) and the hole wall strengthening torque transmission roller (145) are movably connected through the hole wall strengthening transmission rope (146), the hole wall strengthening friction contact wheel (147) is always in contact with the hole wall strengthening film (140), in working, the hole wall strengthening torque transmission motor (141) drives the hole wall strengthening torque transmission gear (142) to rotate, and drives the hole wall strengthening torque transmission roller (145) to rotate through the hole wall strengthening torque transmission gear shaft (143), and drives the hole wall strengthening transmission shaft (148) to rotate through the hole wall strengthening transmission rope (146), and finally drives the hole wall strengthening friction contact wheel (147) to rotate, and drives the hole wall strengthening film (140) to displace through the friction resistance between the hole wall strengthening friction contact wheel (147) and the hole wall strengthening film (140). 2.The lunar soil / rock micro-disturbance drilling while drilling borehole wall containment augmentation system of claim 1, wherein: A strengthening film sliding slope (163) is arranged below the hole wall strengthening film placing chamber (168). 3.The lunar soil / rock micro-disturbance drilling while drilling borehole wall containment augmentation system of claim 1, wherein: The hole wall strengthening film (140) is in the form of a cylinder with a notch, and has a diameter larger than that of the hole, and a plurality of resistance increasing convexes (170) are arranged on the outer surface of the hole wall strengthening film (140), when the hole wall strengthening film (140) slides out of the hole wall strengthening film placing chamber (168), the hole wall strengthening film (140) restores to the original state by its own tension, and is tightly attached to the hole wall. The hole wall strengthening cavity (139), the hole wall strengthening film (140), the hole wall strengthening torque transmission motor (141), the hole wall strengthening torque transmission gear (142), the hole wall strengthening torque transmission gear shaft (143), the gear shaft mounting seat (144), the hole wall strengthening torque transmission roller (145), the hole wall strengthening transmission rope (146), the hole wall strengthening friction contact wheel (147) and the hole wall strengthening transmission shaft (148), the first window (169);

Images