Solid deflagration expansion fixed type ultrasonic wave drilling anchoring device and method

Abstract

The present application relates to a kind of solid deflagration expansion fixed type ultrasonic wave drilling anchoring device and method, belong to ultrasonic wave drilling anchoring technical field.Solve the problem of insufficient anchoring force.It includes feeding device and drilling anchoring device, the feeding device is established with drilling anchoring device cooperation, feeding device is used to drive drilling anchoring device, drilling anchoring device is used to realize fixed.The present application when reaching certain drilling depth, solid fuel in the end of drill pipe cavity is ignited by electrode, ignites solid fuel nitrocellulose, occurs violent combustion and explosion, produces a large amount of energy, and the end of drill pipe is extruded and deformed;Deformed expansion cavity will extrude the inner wall of borehole, produce certain expansion force, provide larger effective anchoring force for the whole device, realize the fixation of the whole device, provide larger anchoring force for sampler under simple structure.

Description

Technical Field

[0001] This invention relates to a deflagration expansion fixed drilling anchoring device and method, belonging to the field of ultrasonic drilling anchoring technology. Background Technology

[0002] The surface of an asteroid is a weak gravitational environment. For an asteroid probe to perform sampling operations, it must reliably attach to the surface. This can be achieved using ultrasonic cross-drilling. Ultrasonic drilling typically requires a reverse jet to provide drilling pressure to the ultrasonic drill. Under this pressure, the ultrasonic drill penetrates the surface. To achieve fixation, multiple ultrasonic drills are usually needed, each drilling into the surface at a specific angle, forming a force-closed cross-drilling anchoring device. However, current force-closed ultrasonic drilling anchoring devices suffer from insufficient anchoring force.

[0003] Therefore, there is an urgent need to propose a solid deflagration expansion fixed ultrasonic drilling anchoring device and method to solve the above-mentioned technical problems. Summary of the Invention

[0004] The purpose of this invention is to solve the problem of insufficient anchoring force by providing a solid deflagration expansion-fixed ultrasonic drilling anchoring device and method. A brief overview of the invention is given below to provide a basic understanding of certain aspects of the invention. It should be understood that this overview is not an exhaustive summary of the invention. It is not intended to identify key or essential parts of the invention, nor is it intended to limit the scope of the invention.

[0005] The technical solution of this invention:

[0006] A solid deflagration expansion fixed ultrasonic drilling anchoring device includes a feeding device and a drilling anchoring device. The feeding device and the drilling anchoring device are coordinated. The feeding device is used to drive the drilling anchoring device, and the drilling anchoring device is used to achieve fixation.

[0007] Preferably, the drilling anchoring device includes a cylinder, a housing, a preload screw, a cover plate, a piezoelectric ceramic plate, an amplitude transformer, a drill rod, an electrode, and a charge. The upper part of the cylinder is equipped with a feeding device, and the lower part of the cylinder is equipped with a housing. The cover plate, piezoelectric ceramic plate, amplitude transformer, and drill rod are sequentially arranged inside the housing. The preload screw passes through the cover plate and the piezoelectric ceramic plate and connects to the amplitude transformer. The upper part of the drill rod is connected to the amplitude transformer, and the lower part of the drill rod passes through the housing and the lower part of the housing. The charge is placed inside the drill rod and is connected to the electrode inside the drill rod.

[0008] Preferably, the drilling anchoring device further includes a free mass block and a spring, the lower end of the amplitude rod is machined with a sliding hole, the upper end of the drill rod is machined with a slider, the slider passes through the free mass block and is slidably connected to the sliding hole, and the two ends of the spring are respectively connected to the drill rod and the machine housing.

[0009] Preferably, the drilling anchoring device further includes rollers and flexible foot pads. The upper outer wall of the housing is slidably connected to the inside of the cylinder. The lower outer wall of the housing is provided with rollers that contact the inner wall of the cylinder. The lower outer side of the cylinder is provided with flexible foot pads, and the middle of the flexible foot pads is machined with through holes for cooperating with the drill rod.

[0010] Preferably, the drilling anchoring device further includes a clamping plate and an ignition wire. A clamping plate is provided between the electrode and the charge, and the ignition wire passes through the clamping plate. The two ends of the ignition wire are respectively connected to the electrode and the charge.

[0011] Preferably, the cylinder is a carbon fiber cylinder.

[0012] Preferably, the feeding device includes a top cover, a piston, and a bottom cover. The top cover is provided at the upper end of the cylinder, and the bottom cover is provided inside the cylinder. There is a sealing cavity between the top cover and the bottom cover. The piston has a sealing slider at the top. The upper end of the piston is slidably connected to the sealing cavity, and the lower part of the piston passes through the bottom cover and is connected to the housing.

[0013] Preferably, the feeding device further includes an upper locking nut, a lower locking nut, and a connecting flange. A baffle is provided at the positions where the top and bottom covers are located within the sealed cavity. One end of the top cover passes through a baffle and is threadedly connected to the upper locking nut. The bottom cover passes through another baffle and is threadedly connected to the lower locking nut. The connecting flange is bolted to the upper end of the housing. A threaded hole is machined in the middle of the connecting flange, and the lower end of the piston is threadedly connected to the connecting flange.

[0014] Preferably, it also includes a sampler, which has at least three sets of feeding devices and drilling anchoring devices arranged circumferentially at equal intervals, and the sampler is connected to the cylinder.

[0015] A solid deflagration expansion-fixed ultrasonic drilling anchoring method includes the following steps:

[0016] Step 1: Set the drilling anchoring device in the designated position;

[0017] Step 2: The medium is introduced into the sealed cavity, and a voltage is applied to the piezoelectric ceramic sheet;

[0018] Step 3: The medium pushes the piston to move axially downward along the sealed cavity, pushing the casing to move axially downward along the cylinder. At the same time, the piezoelectric ceramic plate drives the drill rod to vibrate through the driving amplitude rod, thus realizing drilling.

[0019] Step 4: When drilling reaches a certain depth, stop introducing the medium and stop applying voltage;

[0020] Step 5: The electrode is ignited by electricity. The electrode ignites the charge through the ignition wire, resulting in violent combustion and explosion, generating a large amount of energy. This compresses and deforms the end of the drill pipe. The deformed expansion cavity compresses the side wall, generating a certain amount of tension force, providing a large effective anchoring force, and fixing the entire device.

[0021] The present invention has the following beneficial effects:

[0022] When a certain drilling depth is reached, the solid fuel in the cavity at the end of the drill rod is ignited by the electrode, which ignites the solid fuel nitrocellulose, causing violent combustion and explosion, generating a large amount of energy, and squeezing and deforming the end of the drill rod; the deformed expansion cavity will squeeze the inner wall of the borehole, generating a certain amount of tension force, providing a large effective anchoring force for the entire device, and fixing the entire device, providing a large anchoring force for the sampler under a simple structure. Attached Figure Description

[0023] Figure 1 This is an assembly drawing of a solid deflagration expansion fixed ultrasonic drilling and anchoring device.

[0024] Figure 2 This is a cross-sectional view of a solid deflagration expansion fixed ultrasonic drilling and anchoring device.

[0025] Figure 3 yes Figure 2 A magnified view of a portion of the image;

[0026] Figure 4 This is a schematic diagram of the anchoring of a solid deflagration expansion fixed ultrasonic drilling anchoring device.

[0027] Figure 5 yes Figure 4 A magnified view of a portion of the image.

[0028] In the diagram, 1-sampler, 2-feed device, 3-drilling anchoring device, 2-1-upper locking nut, 2-2-top cap, 2-3-sealing cavity, 2-4-piston, 2-5-bottom cap, 2-6-lower locking nut, 2-7-connecting flange, 3-1-cylinder, 3-2-housing, 3-3-preload screw, 3-4-cover plate, 3-5-piezoelectric ceramic plate, 3-6-free mass block, 3-7-amplifier rod, 3-8-spring, 3-9-roller, 3-10-flexible foot pad, 3-11-drill rod, 3-12-electrode, 3-13-pressure plate, 3-14-ignition wire, 3-15-filling agent. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the invention is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0030] Specific implementation method one: Combining Figure 1-5 This embodiment describes a solid deflagration expansion fixed ultrasonic drilling anchoring device, which includes a feeding device 2 and a drilling anchoring device 3. The feeding device 2 and the drilling anchoring device 3 cooperate with each other. The feeding device 2 is used to drive the drilling anchoring device 3 to feed, and the drilling anchoring device 3 is used to achieve fixation.

[0031] Specific Implementation Method Two: Combining Figure 1-5 This embodiment describes a solid deflagration expansion fixed ultrasonic drilling and anchoring device. The drilling and anchoring device 3 includes a cylinder 3-1, a housing 3-2, pre-tightening screws 3-3, a cover plate 3-4, a piezoelectric ceramic plate 3-5, an amplitude transformer 3-7, a drill rod 3-11, an electrode 3-12, and a loading charge 3-15. A feeding device 2 is provided at the upper part of the cylinder 3-1, and the housing 3-2 is provided at the lower part of the cylinder 3-1. The cover plate 3-4, piezoelectric ceramic plate 3-5, amplitude transformer 3-7, and drill rod 3-11 are sequentially arranged inside the housing 3-2. The amplitude transformer 3-7 is fixedly installed inside the housing 3-2. The pre-tightening screw 3-3 passes through the cover plate 3-4, the piezoelectric ceramic plate 3-5, and is threaded to the amplitude transformer 3-7 to fix the voltage ceramic plate. It is detachable. The upper part of the drill rod 3-11 is connected to the amplitude transformer 3-7. The lower part of the drill rod 3-11 passes through the housing 3-2 and the bottom opening of the lower part of the housing 3-2. The extended end (lower end) of the drill rod 3-11 is provided with a loading chamber. The side wall of the loading chamber is provided with an opening, which can be sealed by the side plate and bolts. The loading agent 3-15 is placed in the loading chamber of the drill rod 3-11 through the opening. The loading agent 3-15 is connected to the electrode 3-12 inside the drill rod 3-11.

[0032] Specific implementation method three: Combining Figure 1-5This embodiment describes a solid deflagration expansion fixed ultrasonic drilling anchoring device. The drilling anchoring device 3 further includes a free mass block 3-6 and a spring 3-8. The lower end of the amplitude transformer 3-7 is machined with a sliding hole, and the upper end of the drill rod 3-11 is machined with a slider and a retaining edge. The retaining edge is located below the slider to limit the relative displacement between the sliders. The slider passes through the free mass block 3-6 and is slidably connected to the sliding hole. The spring 3-8 is fitted on the drill rod 3-11, and the two ends of the spring 3-8 are respectively connected to the retaining edge at the upper end of the drill rod 3-11 and the bottom surface of the housing 3-2 for energy storage. The outer diameter of the annular free mass block 3-6 is smaller than the inner diameter of the cylinder 3-1, and the inner diameter of the free mass block 3-6 is larger than the outer diameter of the slider. The drill rod 3-11 is slidably connected to the housing 3-2 through the retaining edge to reduce energy loss and increase vibration through collision.

[0033] Specific implementation method four: Combination Figure 1-5 This embodiment describes a solid deflagration expansion fixed ultrasonic drilling anchoring device. The drilling anchoring device 3 further includes rollers 3-9 and flexible foot pads 3-10. The upper outer wall of the housing 3-2 is slidably connected to the inside of the cylinder 3-1. Three sets of rollers 3-9 are circumferentially and equidistantly arranged on the lower outer wall of the housing 3-2 via bolts. The rollers 3-9 contact the inner wall of the cylinder 3-1, reducing friction while ensuring stable operation. A flexible foot pad 3-10 is provided on the lower outer side of the cylinder 3-1. The center of the flexible foot pad 3-10 is machined with a feature for contact with the drill. The through hole of rod 3-11; the filling chamber needs to deform its sidewalls when anchored. The two ends of the filling chamber are thick and the sidewalls are thin. Therefore, the sidewalls of the filling chamber are weak in the radial direction. In the non-operational state and when the filling chamber is filled with filling agent 3-15, the filling chamber is set in the through hole of the flexible foot pad 3-10. Considering that the axial dimension of the cylinder 3-1 is not affected during the design, the filling chamber is protected by the flexible foot pad 3-10. The flexible foot pad 3-10 not only achieves shock absorption to meet the operation (landing) requirements, but also provides radial shock absorption for the local structure to meet the requirements of safe storage and transportation.

[0034] Specific Implementation Method Five: Combining Figure 1-5 This embodiment describes a solid deflagration expansion fixed ultrasonic drilling anchoring device. The drilling anchoring device 3 further includes a clamping plate 3-13 and an ignition wire 3-14. The electrode 3-12 is disposed on the upper side inside the filling chamber. The clamping plate 3-13 is disposed between the electrode 3-12 and the filling material 3-15. The ignition wire 3-14 passes through the clamping plate 3-13, and its two ends are respectively connected to the electrode 3-12 and the filling material 3-15.

[0035] Specific Implementation Method Six: Combination Figure 1-5This embodiment describes a solid deflagration expansion fixed ultrasonic drilling anchoring device. The cylinder 3-1 is a carbon fiber cylinder, the spring 3-8 is a compression spring, the drilling anchoring device 3 is an ultrasonic drilling anchoring device, and the filling agent 3-15 is solid fuel, nitrocellulose.

[0036] Specific implementation method seven: Combination Figure 1-5 This embodiment describes a solid deflagration expansion fixed ultrasonic drilling and anchoring device. The feeding device 2 includes a top cover 2-2, a piston 2-4, and a bottom cover 2-5. The top cover 2-2 is fixedly installed at the upper end of the cylinder 3-1, and the bottom cover 2-5 is fixedly installed inside the cylinder 3-1. A sealing cavity 2-3 is formed between the top cover 2-2 and the bottom cover 2-5. The piston 2-4 has a sealing slider at its upper part. The sealing slider at the upper end of the piston 2-4 is slidably connected to the side wall of the sealing cavity 2-3. The sealing slider divides the sealing cavity 2-3 into an upper sealing cavity and a lower sealing cavity. Both the upper and lower sealing cavities are machined with inlets and outlets. During drilling, the medium can be pumped in through the inlet and outlet of the upper sealing cavity. When the drilling position needs to be corrected, the medium can be pumped in through the inlet and outlet of the lower sealing cavity. The lower part of the piston 2-4 is slidably connected to the bottom cover 2-5. The lower part of the piston 2-4 passes through the bottom cover 2-5 and establishes a connection with the upper end of the housing 3-2.

[0037] Specific implementation method eight: Combination Figure 1-5 This embodiment describes a solid-fuel combustion expansion-fixed ultrasonic drilling anchoring device. The feed device 2 further includes an upper locking nut 2-1, a lower locking nut 2-6, and a connecting flange 2-7. Within the sealed cavity 2-3, baffles are provided at the positions of the top cover 2-2 and the bottom cover 2-5. One end of the top cover 2-2 passes through a baffle and is threaded to the upper locking nut 2-1. The bottom cover 2-5 passes through another baffle and is threaded to the lower locking nut 2-6. The connecting flange 2-7 is bolted to the upper end of the housing 3-2. A threaded hole is machined in the middle of the connecting flange 2-7. The lower end of the piston 2-4 is threaded to the connecting flange 2-7 for detachment. This invention relies on a cold-air-driven feed device to provide drilling pressure for the ultrasonic drill, and on the combustion of solid fuel in the drill rod end cavity to expand the drill rod end and compress the inner wall of the borehole to generate an anchoring force. This simple structure provides a large anchoring force for the sampler.

[0038] Specific Implementation Method Nine: Combining Figure 1-5 This embodiment describes a solid deflagration expansion fixed ultrasonic drilling anchoring device, which also includes a sampler 1. The sampler 1 is circumferentially arranged with at least three sets of feed devices 2 and drilling anchoring devices 3. The sampler 1 is connected to the cylinder 3-1 via a servo motor.

[0039] Specific Implementation Method Ten: Combining Figure 1-5This embodiment describes a solid deflagration expansion-fixed ultrasonic drilling and anchoring method, which utilizes the aforementioned solid deflagration expansion-fixed ultrasonic drilling and anchoring device, and includes the following steps:

[0040] Step 1: Set the drilling anchoring device 3 in the designated position;

[0041] Step 2: The medium is introduced into the sealed cavity 2-3, and a voltage is applied to the piezoelectric ceramic sheet 3-5;

[0042] Step 3: The medium pushes the piston 2-4 to move downward along the sealing cavity 2-3, and pushes the housing 3-2 to move downward along the cylinder 3-1. At the same time, the piezoelectric ceramic plate 3-5 drives the drill rod 3-11 to vibrate through the driving amplitude rod 3-7, so as to realize drilling.

[0043] Step 4: When drilling reaches a certain depth, the filling chamber at the lower end of drill rod 3-11 enters the ground surface, the medium is stopped being introduced, and the voltage is stopped.

[0044] Step 5: Electrode 3-12 is ignited. Electrode 3-12 ignites the charge 3-15 through ignition wire 3-14, resulting in violent combustion and explosion, generating a large amount of energy. This compresses and deforms the end of the drill rod. The deformed expansion cavity (charge cavity) will compress the side wall, generating a certain amount of tension force, providing a large effective anchoring force for the entire device, thus fixing the entire device and facilitating subsequent sampling work. This completes the device's workflow.

[0045] Example 1:

[0046] Taking the anchoring and sampling operation on the surface of an asteroid using the present invention as an example, a solid deflagration expansion-fixed ultrasonic drilling anchoring method is described. This method utilizes a solid deflagration expansion-fixed ultrasonic drilling anchoring device, which includes a sampler 1, a feeding device 2, and a drilling anchoring device 3. The feeding device 2 and the drilling anchoring device 3 are coordinated; the feeding device 2 drives the drilling anchoring device 3 to feed, and the drilling anchoring device 3 is used for fixing. Three sets of feeding devices 2 and drilling anchoring devices 3 are equidistantly arranged around the sampler 1. The sampler 1 is connected to the cylinder 3-1 via a servo motor. The carbon fiber cylinder serves as the landing support arm of the sampler, folded down to the side of the sampler. When the sampler lands on the surface, the support arm opens to support the entire sampler.

[0047] The drilling anchoring device 3 includes a cylinder 3-1, a housing 3-2, a preload screw 3-3, a cover plate 3-4, a piezoelectric ceramic plate 3-5, a free mass block 3-6, an amplitude transformer 3-7, a spring 3-8, a roller 3-9, a flexible foot pad 3-10, a drill rod 3-11, an electrode 3-12, a clamping plate 3-13, an ignition wire 3-14, and a charging charge 3-15. The cylinder 3-1 is a carbon fiber cylinder, the spring 3-8 is a compression spring, the drilling anchoring device 3 is an ultrasonic drilling anchoring device, and the charging charge 3-15 is nitrocellulose. A feeding device 2 is provided at the upper part of the cylinder 3-1, and an organic [material / material] is provided at the lower part of the cylinder 3-1. The housing 3-2 contains, in sequence, a cover plate 3-4, a piezoelectric ceramic plate 3-5, an amplitude transformer 3-7, and a drill rod 3-11. The amplitude transformer 3-7 is fixedly installed inside the housing 3-2. A preload screw 3-3 passes through the cover plate 3-4 and the piezoelectric ceramic plate 3-5, and is threadedly connected to the amplitude transformer 3-7 to fix the piezoelectric ceramic plate. This connection is detachable. The upper part of the drill rod 3-11 is connected to the amplitude transformer 3-7, and the lower part of the drill rod 3-11 passes through the housing 3-2 and an opening in the bottom surface of the housing 3-2. The protruding end (lower end) of the drill rod 3-11 has a loading chamber. The side wall of the loading chamber has an opening, allowing passage through a side plate and screw. The opening is sealed, and the charge 3-15 is placed into the charge chamber of the drill rod 3-11 through the opening. The charge 3-15 is connected to the electrode 3-12 inside the drill rod 3-11. The lower end of the amplitude rod 3-7 is machined with a sliding hole, and the upper end of the drill rod 3-11 is machined with a slider and a stop. The stop is located below the slider to limit the relative displacement between the sliders. The slider passes through the free mass block 3-6 and slides through the sliding hole. A spring 3-8 is fitted on the drill rod 3-11. The two ends of the spring 3-8 are connected to the stop at the upper end of the drill rod 3-11 and the bottom surface of the housing 3-2, respectively, for energy storage. The outer diameter of the annular free mass block 3-6 is... The inner diameter of the free mass block 3-6 is larger than the outer diameter of the slider, and the drill rod 3-11 is slidably connected to the housing 3-2 through the flange to reduce energy loss and increase vibration through collision. The upper outer wall of the housing 3-2 is slidably connected to the inside of the cylinder 3-1. The lower outer wall of the housing 3-2 is bolted with three sets of rollers 3-9 arranged circumferentially at equal intervals. The rollers 3-9 contact the inner wall of the cylinder 3-1 to reduce friction and ensure stable operation. A flexible foot pad 3-10 is provided on the lower outer side of the cylinder 3-1. The flexible foot pad 3-10 has a through hole machined in the middle for cooperating with the drill rod 3-11.The loading chamber requires sidewall deformation during anchoring. The ends of the loading chamber are thick, while the sidewalls are thin, resulting in weak radial load-bearing capacity. In the non-operational state, when the loading chamber is filled with explosive 3-15, it is positioned within the through-hole of the flexible foot pad 3-10. Considering the design should not affect the axial dimensions of the cylinder 3-1, the flexible foot pad 3-10 protects the loading chamber. The flexible foot pad 3-10 not only provides shock absorption to meet operational (landing) requirements but also provides radial shock absorption for the local structure, meeting safe storage and transportation requirements; the electric... Electrode 3-12 is positioned on the upper side of the filling chamber. A clamping plate 3-13 is positioned between electrode 3-12 and the filling material 3-15. Ignition wire 3-14 passes through the clamping plate 3-13, and both ends of ignition wire 3-14 are connected to electrode 3-12 and filling material 3-15, respectively.

[0048] The feeding device 2 includes an upper locking nut 2-1, a top cover 2-2, a piston 2-4, a bottom cover 2-5, a lower locking nut 2-6, and a connecting flange 2-7. The top cover 2-2 is fixedly installed at the upper end of the cylinder 3-1, and the bottom cover 2-5 is fixedly installed inside the cylinder 3-1. A sealing cavity 2-3 is formed between the top cover 2-2 and the bottom cover 2-5. A sealing slider is located on the upper part of the piston 2-4, and the sealing slider at the upper end of the piston 2-4 is slidably connected to the side wall of the sealing cavity 2-3. The sealing slider divides the sealing cavity 2-3 into an upper sealing cavity and a lower sealing cavity. Both the upper and lower sealing cavities are machined with inlets and outlets. During drilling, the medium can be pumped in through the inlet and outlet of the upper sealing cavity. When correction is needed, the medium can be pumped in through the inlet and outlet of the lower sealing cavity. The lower part of piston 2-4 is slidably connected to the bottom end cover 2-5. The lower part of piston 2-4 passes through the bottom end cover 2-5 and is connected to the upper end of the housing 3-2. The sealing cavity 2-3 is equipped with baffles at the positions of the top end cover 2-2 and the bottom end cover 2-5. One end of the top end cover 2-2 passes through a baffle and is threaded to the upper locking nut 2-1. The bottom end cover 2-5 passes through another baffle and is threaded to the lower locking nut 2-6. The connecting flange 2-7 is connected to the upper end of the housing 3-2 by bolts. The middle part of the connecting flange 2-7 is machined with a threaded hole. The lower end of piston 2-4 is threaded to the connecting flange 2-7 to achieve detachment.

[0049] Includes the following steps:

[0050] Step 1: First, the sampler lands on the surface of the asteroid. The three support arms with feed devices and ultrasonic drilling anchoring devices that are folded on the side of the sampler are unfolded to serve as the support arms of the entire sampler and to support the entire sampler. The drilling anchoring device 3 is set in the designated position.

[0051] Step 2: The ultrasonic drill then begins to work, the medium is introduced into the sealed cavity 2-3, and voltage is applied to the piezoelectric ceramic sheet 3-5;

[0052] Step 3: The medium pushes the piston 2-4 to move downward along the sealing cavity 2-3, pushing the housing 3-2 to move downward along the cylinder 3-1. At the same time, the piezoelectric ceramic plate 3-5 drives the drill rod 3-11 to vibrate through the drive amplitude rod 3-7. The ultrasonic drill begins to drill towards the star surface with the drilling force provided by the feed device driven by cold air.

[0053] Step 4: When drilling reaches a certain depth, the filling chamber at the lower end of drill rod 3-11 enters the ground surface, the medium is stopped being introduced, and the voltage is stopped.

[0054] Step 5: When a certain drilling depth is reached, the solid fuel in the cavity at the end of the drill rod is ignited by the electrode, which ignites the solid fuel nitrocellulose, causing violent combustion and explosion, generating a large amount of energy, and squeezing and deforming the end of the drill rod; the deformed expansion cavity will squeeze the inner wall of the borehole, generating a certain amount of expansion force, providing a large effective anchoring force for the entire device, realizing the fixation of the entire device, and facilitating the subsequent sampling work of the device. The working process of the device is now complete.

[0055] It should be noted that in the above embodiments, as long as the technical solutions are not contradictory, they can be permuted and combined. Those skilled in the art can exhaust all possibilities based on the mathematical knowledge of permutation and combination. Therefore, the present invention will not describe the technical solutions after permutation and combination one by one, but it should be understood that the technical solutions after permutation and combination have been disclosed by the present invention.

[0056] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A solid deflagration expansion fixed ultrasonic drilling anchoring device, characterized in that: It includes a feed device (2) and a drilling anchoring device (3). The feed device (2) and the drilling anchoring device (3) cooperate with each other. The feed device (2) is used to drive the drilling anchoring device (3), and the drilling anchoring device (3) is used to achieve fixation. The drilling anchoring device (3) includes a cylinder (3-1), a housing (3-2), a pre-tightening screw (3-3), a cover plate (3-4), a piezoelectric ceramic plate (3-5), an amplitude transformer (3-7), a drill rod (3-11), an electrode (3-12), and a charging charge (3-15). The upper part of the cylinder (3-1) is provided with a feeding device (2), and the lower part of the cylinder (3-1) is provided with a housing (3-2). The cover plate (3-4) and the piezoelectric ceramic plate (3-5) are arranged sequentially inside the housing (3-2). Amplitude rod (3-7), drill rod (3-11), pre-tightening screw (3-3) passes through cover plate (3-4), piezoelectric ceramic plate (3-5) and connects to amplitude rod (3-7), upper part of drill rod (3-11) is connected to amplitude rod (3-7), lower part of drill rod (3-11) passes through housing (3-2) and lower part of housing (3-2), charge (3-15) is placed in drill rod (3-11), charge (3-15) is connected to electrode (3-12) in drill rod (3-11); The drilling anchoring device (3) also includes rollers (3-9) and flexible foot pads (3-10). The upper outer wall of the housing (3-2) is slidably connected to the inside of the cylinder (3-1). The lower outer wall of the housing (3-2) is provided with rollers (3-9). The rollers (3-9) are in contact with the inner wall of the cylinder (3-1). The lower outer side of the cylinder (3-1) is provided with flexible foot pads (3-10). The middle part of the flexible foot pads (3-10) is machined with through holes for cooperating with drill rods (3-11). The feeding device (2) includes a top cover (2-2), a piston (2-4), and a bottom cover (2-5). The top cover (2-2) is provided at the upper end of the cylinder (3-1), and the bottom cover (2-5) is provided inside the cylinder (3-1). There is a sealing cavity (2-3) between the top cover (2-2) and the bottom cover (2-5). The piston (2-4) has a sealing slider at the upper part. The upper end of the piston (2-4) is slidably connected to the sealing cavity (2-3), and the lower part of the piston (2-4) passes through the bottom cover (2-5) and is connected to the housing (3-2).

2. The solid deflagration expansion fixed ultrasonic drilling anchoring device according to claim 1, characterized in that: The drilling anchoring device (3) also includes a free mass block (3-6) and a spring (3-8). The lower end of the amplitude rod (3-7) is machined with a sliding hole, and the upper end of the drill rod (3-11) is machined with a slider. The slider passes through the free mass block (3-6) and is slidably connected to the sliding hole. The two ends of the spring (3-8) are respectively connected to the drill rod (3-11) and the housing (3-2).

3. The solid deflagration expansion fixed ultrasonic drilling anchoring device according to claim 1, characterized in that: The drilling anchoring device (3) also includes a clamping plate (3-13) and an ignition wire (3-14). The clamping plate (3-13) is provided between the electrode (3-12) and the charge (3-15). The ignition wire (3-14) passes through the clamping plate (3-13), and the two ends of the ignition wire (3-14) are connected to the electrode (3-12) and the charge (3-15) respectively.

4. The solid deflagration expansion fixed ultrasonic drilling anchoring device according to claim 1, characterized in that: The cylinder (3-1) is a carbon fiber cylinder.

5. The solid deflagration expansion fixed ultrasonic drilling anchoring device according to claim 1, characterized in that: The feeding device (2) also includes an upper locking nut (2-1), a lower locking nut (2-6), and a connecting flange (2-7). The sealing cavity (2-3) is provided with baffles at the positions where the top cover (2-2) and the bottom cover (2-5) are located. One end of the top cover (2-2) passes through a baffle and is threaded to the upper locking nut (2-1). The bottom cover (2-5) passes through another baffle and is threaded to the lower locking nut (2-6). The connecting flange (2-7) is connected to the upper end of the housing (3-2) by bolts. The middle part of the connecting flange (2-7) is machined with a threaded hole. The lower end of the piston (2-4) is threaded to the connecting flange (2-7).

6. The solid deflagration expansion fixed ultrasonic drilling anchoring device according to claim 1, characterized in that: It also includes a sampler (1), which has at least three sets of feeding devices (2) and drilling anchoring devices (3) arranged circumferentially at equal intervals. The sampler (1) is connected to the cylinder (3-1).

7. A solid deflagration expansion-fixed ultrasonic drilling anchoring method, characterized in that: The solid deflagration expansion fixed ultrasonic drilling and anchoring device according to any one of claims 1-6 includes the following steps: Step 1: Set the drilling anchoring device (3) at the designated location; Step 2: The medium is introduced into the sealed cavity (2-3), and a voltage is applied to the piezoelectric ceramic sheet (3-5); Step 3: The medium pushes the piston (2-4) to move axially downward along the sealed cavity (2-3), pushing the housing (3-2) to move axially downward along the cylinder (3-1). At the same time, the piezoelectric ceramic plate (3-5) drives the drill rod (3-11) to vibrate through the drive amplitude rod (3-7), thus realizing drilling. Step 4: When drilling reaches a certain depth, stop introducing the medium and stop applying voltage; Step 5: The electrode (3-12) is ignited. The electrode (3-12) ignites the charge (3-15) through the ignition wire (3-14), causing combustion and explosion. This causes the drill rod end to be squeezed and deformed. The deformed expansion cavity will squeeze the side wall, thus fixing the drilling anchoring device.

Images