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CN-117345106-B - Solid detonation expansion fixed ultrasonic drilling anchoring device and method

CN117345106BCN 117345106 BCN117345106 BCN 117345106BCN-117345106-B

Abstract

The invention relates to a solid detonation expansion fixed ultrasonic drilling anchoring device and method, and belongs to the technical field of ultrasonic drilling anchoring. Solves the problem of insufficient anchoring force. The drilling anchor device is used for driving the drilling anchor device, and the drilling anchor device is used for achieving fixation. When the drilling depth is reached, the solid fuel in the cavity at the end part of the drill rod is ignited by the electrode, the solid fuel nitrocellulose is ignited, violent combustion and explosion are generated, a large amount of energy is generated, the end part of the drill rod is extruded and deformed, the deformed expansion cavity can extrude the inner wall of the drill hole, a certain expansion force is generated, a large effective anchoring force is provided for the whole device, the fixing of the whole device is realized, and a large anchoring force is provided for the sampler under a simple structure.

Inventors

  • QUAN QIQUAN
  • WANG YUHENG
  • TANG BO
  • ZHANG QIUKUI
  • TANG DEWEI
  • DENG ZONGQUAN

Assignees

  • 哈尔滨工业大学

Dates

Publication Date
20260512
Application Date
20231016

Claims (7)

  1. 1. The solid detonation expansion fixed ultrasonic drilling and anchoring device is characterized by comprising a feeding device (2) and a drilling and anchoring device (3), wherein the feeding device (2) is matched with the drilling and anchoring device (3), the feeding device (2) is used for driving the drilling and anchoring device (3), and the drilling and anchoring device (3) is used for realizing fixation; The drilling anchor device (3) comprises a cylinder body (3-1), a shell (3-2), a pre-tightening screw (3-3), a cover plate (3-4), a piezoelectric ceramic plate (3-5), a luffing rod (3-7), a drill rod (3-11), an electrode (3-12) and a filling agent (3-15), wherein the feeding device (2) is arranged at the upper part of the cylinder body (3-1), the shell (3-2) is arranged at the lower part of the cylinder body (3-1), the cover plate (3-4), the piezoelectric ceramic plate (3-5), the luffing rod (3-7) and the drill rod (3-11) are sequentially arranged in the shell (3-2), the pre-tightening screw (3-3) penetrates through the cover plate (3-4), the piezoelectric ceramic plate (3-5) and the luffing rod (3-7), the upper part of the drill rod (3-11) is connected with the luffing rod (3-7), the lower part of the drill rod (3-11) penetrates through the shell (3-2) and the lower part of the shell (3-2), the filling agent (3-15) is placed in the luffing rod (3-11), the filling medicine (3-15) is connected with the electrode (3-12) in the drill rod (3-11); The drilling anchoring device (3) further comprises rollers (3-9) and flexible foot pads (3-10), the outer side wall of the upper portion of the casing (3-2) is slidably connected inside the cylinder (3-1), the rollers (3-9) are arranged on the outer side wall of the lower portion of the casing (3-2), the rollers (3-9) are in contact with the inner wall of the cylinder (3-1), the flexible foot pads (3-10) are arranged on the outer side of the lower end of the cylinder (3-1), and through holes matched with the drill rods (3-11) are formed in the middle of the flexible foot pads (3-10); The feeding device (2) comprises a top end cover (2-2), a piston (2-4) and a bottom end cover (2-5), wherein the top end of the cylinder (3-1) is provided with the top end cover (2-2), the bottom end cover (2-5) is arranged in the cylinder (3-1), a sealing cavity (2-3) is arranged between the top end cover (2-2) and the bottom end cover (2-5), a sealing sliding block is arranged on the upper portion of the piston (2-4), the upper end of the piston (2-4) is in sliding connection with the sealing cavity (2-3), and the lower portion of the piston (2-4) penetrates through the bottom end cover (2-5) to be connected with the casing (3-2).
  2. 2. The solid detonation expansion fixed ultrasonic drilling and anchoring device according to claim 1, wherein the drilling and anchoring device (3) further comprises a free mass block (3-6) and a spring (3-8), a sliding hole is formed in the lower end of the amplitude transformer (3-7), a sliding block is formed in the upper end of the drill rod (3-11), the sliding block penetrates through the free mass block (3-6) and is in sliding connection with the sliding hole, and two ends of the spring (3-8) are connected with the drill rod (3-11) and the casing (3-2) respectively.
  3. 3. The solid detonation expansion fixed ultrasonic drilling and anchoring device according to claim 1, wherein the drilling and anchoring device (3) further comprises a pressing sheet (3-13) and a igniting line (3-14), the pressing sheet (3-13) is arranged between the electrode (3-12) and the filling agent (3-15), the igniting line (3-14) penetrates through the pressing sheet (3-13), and two ends of the igniting line (3-14) are respectively connected with the electrode (3-12) and the filling agent (3-15).
  4. 4. A solid deflagration-expansion fixed ultrasonic drilling anchoring device according to claim 1, wherein the cylinder (3-1) is a carbon fiber cylinder.
  5. 5. The solid detonation expansion fixed ultrasonic drilling anchoring device according to claim 1, wherein the feeding device (2) further comprises an upper locking nut (2-1), a lower locking nut (2-6) and a connecting flange (2-7), a top end cover (2-2) and a bottom end cover (2-5) are arranged in the sealing cavity (2-3), the positions of the top end cover (2-2) and the bottom end cover are respectively provided with a baffle, one end of the top end cover (2-2) penetrates through one baffle to be in threaded connection with the upper locking nut (2-1), the bottom end cover (2-5) penetrates through the other baffle to be in threaded connection with the lower locking nut (2-6), the connecting flange (2-7) is connected with the upper end of the shell (3-2) through a bolt, a threaded hole is formed in the middle of the connecting flange (2-7), and the lower end of the piston (2-4) is in threaded connection with the connecting flange (2-7).
  6. 6. The solid detonation expansion fixed ultrasonic drilling and anchoring device according to claim 1, further comprising a sampler (1), wherein at least three groups of feeding devices (2) and drilling and anchoring devices (3) are circumferentially and equidistantly arranged on the sampler (1), and the sampler (1) is connected with the cylinder (3-1).
  7. 7. A solid detonation expansion fixed ultrasonic drilling and anchoring method is characterized in that the solid detonation expansion fixed ultrasonic drilling and anchoring device is adopted according to any one of claims 1 to 6, and comprises the following steps: Setting a drilling anchoring device (3) at a designated position; step two, medium is introduced into the sealing cavity (2-3), and voltage is applied to the piezoelectric ceramic plate (3-5); Step three, the medium pushes the piston (2-4) to move downwards along the axial direction of the sealing cavity (2-3), pushes the shell (3-2) to move downwards along the axial direction of the cylinder (3-1), and simultaneously the piezoelectric ceramic plate (3-5) drives the drill rod (3-11) to vibrate by driving the amplitude transformer (3-7) so as to realize drilling; Stopping feeding the medium and stopping applying the voltage when drilling to a certain depth; And fifthly, electrifying and igniting the electrode (3-12), igniting the filling medicine (3-15) by the electrode (3-12) through an ignition wire (3-14), burning and exploding, extruding and deforming the end part of the drill rod, extruding the side wall by the deformed expansion cavity, and fixing the drilling anchoring device.

Description

Solid detonation expansion fixed ultrasonic drilling anchoring device and method Technical Field The invention relates to a deflagration expansion fixed drilling anchoring device and method, and belongs to the technical field of ultrasonic drilling anchoring. Background The asteroid surface is a weak gravity environment, if the asteroid probe is to be sampled, reliable attachment is required to be realized on the asteroid surface, and the anchoring of the probe can be realized by adopting an ultrasonic cross drilling mode. The ultrasonic drilling generally needs a reverse air injection device to provide a certain drilling pressure for the ultrasonic drilling, the ultrasonic drilling is drilled into the ground surface under the action of the drilling pressure, and a plurality of ultrasonic drilling is generally needed to realize fixation through the ultrasonic drilling device, and each ultrasonic drilling is drilled into the ground surface at a certain angle to form a cross drilling anchoring device with closed force. The existing force closed ultrasonic drilling anchoring device has the problem of insufficient anchoring force. Therefore, it is desirable to provide a solid detonation expansion fixed ultrasonic drilling anchoring device and method for solving the above technical problems. Disclosure of Invention It is an object of the present invention to address the problem of insufficient anchoring force and to provide a solid deflagration-expansion fixed ultrasonic drilling anchoring device and method, a brief overview of which is given below in order to provide a basic understanding of certain aspects of the invention. It should be understood that this summary is not an exhaustive overview of the invention. It is not intended to identify key or critical elements of the invention or to delineate the scope of the invention. The technical scheme of the invention is as follows: The utility model provides a solid deflagration expansion fixed ultrasonic wave drills into anchor device, includes feeding device and drills into anchor device, feeding device and the cooperation of drilling into anchor device establishment, and feeding device is used for driving and drills into anchor device, drills into anchor device and is used for realizing fixedly. Preferably, the drilling anchoring device comprises a cylinder body, a shell, a pre-tightening screw, a cover plate, a piezoelectric ceramic plate, a luffing rod, a drill rod, an electrode and a filling medicine, wherein the feeding device is arranged at the upper part of the cylinder body, the shell is arranged at the lower part of the cylinder body, the cover plate, the piezoelectric ceramic plate, the luffing rod and the drill rod are sequentially arranged in the shell, the pre-tightening screw penetrates through the cover plate and the piezoelectric ceramic plate to be connected with the luffing rod, the upper part of the drill rod is connected with the luffing rod, the lower part of the drill rod penetrates through the shell and the lower part of the shell, the filling medicine is placed in the drill rod, and the filling medicine is connected with the electrode in the drill rod. Preferably, the drilling anchoring device further comprises a free mass block and a spring, a sliding hole is formed in the lower end of the amplitude transformer, a sliding block is formed in the upper end of the drill rod, the sliding block penetrates through the free mass block and is in sliding connection with the sliding hole, and two ends of the spring are respectively connected with the drill rod and the casing. Preferably, the drilling anchoring device further comprises a roller and a flexible foot pad, the outer side wall of the upper part of the shell is slidably connected inside the cylinder, the roller is arranged on the outer side wall of the lower part of the shell, the roller is in contact with the inner wall of the cylinder, the flexible foot pad is arranged on the outer side of the lower end of the cylinder, and a through hole matched with the drill rod is formed in the middle of the flexible foot pad. Preferably, the drilling anchoring device further comprises a compression sheet and a pilot wire, wherein the compression sheet is arranged between the electrode and the filling medicine, the pilot wire penetrates through the compression sheet, and two ends of the pilot wire are respectively connected with the electrode and the filling medicine. Preferably, the cylinder body is a carbon fiber cylinder. Preferably, the feeding device comprises a top end cover, a piston and a bottom end cover, wherein the top end cover is arranged at the upper end of the cylinder body, the bottom end cover is arranged in the cylinder body, a sealing cavity is arranged between the top end cover and the bottom end cover, a sealing sliding block is arranged at the upper part of the piston, the upper end of the piston is in sliding connection with the sealing cavity, and the lower part of the pist