CN111852328A - Soil layer peristaltic self-balancing static pressure feeding pore-forming system - Google Patents
Soil layer peristaltic self-balancing static pressure feeding pore-forming system Download PDFInfo
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- CN111852328A CN111852328A CN202010830689.6A CN202010830689A CN111852328A CN 111852328 A CN111852328 A CN 111852328A CN 202010830689 A CN202010830689 A CN 202010830689A CN 111852328 A CN111852328 A CN 111852328A
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- 230000003068 static effect Effects 0.000 title claims abstract description 35
- 239000002689 soil Substances 0.000 title claims abstract description 31
- 230000002572 peristaltic effect Effects 0.000 title claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims abstract description 106
- 239000000523 sample Substances 0.000 claims abstract description 89
- 238000005553 drilling Methods 0.000 claims abstract description 14
- 230000001965 increasing effect Effects 0.000 claims description 63
- 238000007789 sealing Methods 0.000 claims description 29
- 230000005540 biological transmission Effects 0.000 claims description 23
- 230000001681 protective effect Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 230000033001 locomotion Effects 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 239000011664 nicotinic acid Substances 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 241001233061 earthworms Species 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/002—Drilling with diversely driven shafts extending into the borehole
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B28/00—Vibration generating arrangements for boreholes or wells, e.g. for stimulating production
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
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- Earth Drilling (AREA)
Abstract
The invention discloses a soil layer peristaltic self-balancing static pressure feeding pore-forming system, which belongs to the field of geotechnical engineering construction and comprises a double static pressure drill bit alternative telescopic mud breaking pore-forming mechanism, a peristaltic self-pressurizing feeding mechanism, a high-frequency low-amplitude rotary vibration generating mechanism, a probe bin and a probe bin opening and closing mechanism; the invention adopts the bionic self-balancing self-adaptive principle to automatically complete downward static pressure feeding by combining a double static pressure drill bit alternate telescopic mud breaking and hole forming mechanism with a peristaltic self-pressurizing feeding mechanism; the total feeding force can be intensively applied to the inner drill bit or the outer drill bit by adopting a double-drill-bit alternative telescopic mode, so that the static pressure rapid feeding is facilitated; the high-frequency low-amplitude vibration generated by the high-frequency low-amplitude rotary vibration generating mechanism acts on the drill bit, so that the complete set of drilling tool can smoothly break mud and enter the ruler; has the advantages of simplicity, rapidness, high efficiency, energy conservation and low cost.
Description
Technical Field
The invention belongs to the field of geotechnical engineering construction, and particularly relates to a soil layer creeping type self-balancing static pressure feeding hole forming system.
Background
Soil layers are easy to drill, but the hole is difficult to form, especially in underwater soil layers. The rotary drilling of the drill bit often has large disturbance on the hole wall, and hole collapse is easily caused. Furthermore, formations with low water content have poor mobility. With the development and utilization of underground space by human beings, underground pore-forming technology is also continuously developed. However, most of the existing hole-forming technologies are large-scale mechanical equipment such as a drilling machine, a drill bit and a drill rod are used for drilling holes, and the drill rod needs to be continuously connected with the increase of the hole depth. The method has the disadvantages of difficult transportation, large occupied area, high cost, large noise, large disturbance to soil bodies and the like, particularly in remote areas.
Disclosure of Invention
Aiming at the problems of large occupied area, difficult transportation, high cost, large noise, large disturbance to soil mass and the like in the existing underground pore-forming technology, the invention aims to provide a soil layer creeping type self-balancing static pressure feeding pore-forming system, which uses the bionic self-balancing self-adaptive principle to simulate the creeping type motion of earthworms in soil for pore-forming and has the advantages of high efficiency, energy conservation, low cost and less disturbance to the soil mass.
In order to achieve the purpose, the invention adopts the following technical scheme: a soil layer peristaltic self-balancing static pressure feeding pore-forming system is characterized by comprising: the device comprises a double static pressure drill bit alternate telescopic mud breaking and hole forming mechanism, a peristaltic self-pressurizing feeding mechanism, a high-frequency low-amplitude rotary vibration generating mechanism, a probe bin and a probe bin opening and closing mechanism;
the double-static-pressure drill bit alternately-telescopic mud-breaking hole-forming mechanism comprises a second inner drill bit, a second outer drill bit, a second sealing sliding ring, a second drill bit electric telescopic push rod and a second drill bit push rod supporting shell, wherein the second inner drill bit and the second outer drill bit form a second drill bit, the second inner drill bit is a cylindrical and conical combined body, the cylindrical shape is positioned above the conical shape, a raised limiting connecting key is axially arranged on the outer cylindrical surface, and the top of the second inner drill bit is connected with the push rod end of the second drill bit electric telescopic push rod through a pin; the second drill bit push rod supporting shell is sleeved outside the second drill bit electric telescopic push rod and is connected with the motor end of the second drill bit electric telescopic push rod, the upper part of the second drill bit push rod supporting shell is limited through the probe shell, and the lower part of the second drill bit push rod supporting shell is connected with the high-frequency low-amplitude rotary vibration generating mechanism; the second drill bit electric telescopic push rod is electrically connected with the ground control end, the push rod end of the second drill bit electric telescopic push rod can extend out of or retract into the second drill bit push rod supporting shell, when the push rod end of the second drill bit electric telescopic push rod extends out, the second inner drill bit is arranged in advance of the second outer drill bit, and when the push rod end of the second drill bit electric telescopic push rod retracts, the second inner drill bit is positioned in the second outer drill bit; the second outer drill bit is a combination of a hollow cylinder and a hollow inverted round platform shape, the hollow cylinder is positioned above the hollow inverted round platform shape, the inner wall of the hollow cylinder is provided with a limiting connecting groove matched with the limiting connecting key for sliding connection, the hollow inverted round platform shape is provided with a hollow structure for the second inner drill bit to pass through, and a second sealing slip ring is arranged between the second inner drill bit and the second outer drill bit;
the peristaltic self-pressurization feeding mechanism comprises two resistance increasing mechanisms, a feeding electric telescopic push rod, a feeding push rod supporting shell and a propelling joint, wherein the two resistance increasing mechanisms are arranged one above the other, the resistance increasing mechanism positioned above the resistance increasing mechanism is called an upper resistance increasing mechanism, the resistance increasing mechanism positioned below the resistance increasing mechanism is called a lower resistance increasing mechanism, the two resistance increasing mechanisms are respectively composed of a resistance increasing elastic protective sleeve, a resistance increasing limiting block, a resistance increasing adjusting piece, a resistance increasing supporting shell, a resistance increasing electric telescopic push rod and a resistance increasing push rod supporting shell, the number of the resistance increasing limiting blocks is at least two, the two resistance increasing limiting blocks are uniformly arranged on the outer wall of the resistance increasing adjusting piece at equal intervals, and one side of the resistance increasing limiting block, which faces the resistance increasing adjusting piece, is provided with a wedge block; the upper part of the resistance-increasing adjusting part is of a circular truncated cone-shaped structure with a small diameter at the top and a large diameter at the bottom, a wedge-shaped groove matched with the wedge-shaped block is arranged on one side of the resistance-increasing adjusting part facing the resistance-increasing limiting block, the bottom of the resistance-increasing adjusting part is connected with the push rod end of the resistance-increasing electric telescopic push rod through a pin, the resistance-increasing electric telescopic push rod is electrically connected with the ground control end, when the push rod end of the resistance-increasing electric telescopic push rod is pushed out upwards, the resistance-increasing adjusting part is pushed to move upwards, and the resistance-; the resistance-increasing push rod supporting shell is sleeved outside the resistance-increasing electric telescopic push rod and is fixedly connected with the motor end of the resistance-increasing electric telescopic push rod, the push rod end of the resistance-increasing electric telescopic push rod can extend out of or retract into the resistance-increasing push rod supporting shell, the upper part of the resistance-increasing push rod supporting shell is connected with the resistance-increasing supporting shell, and the lower part of the resistance-increasing push rod supporting shell is connected with the feeding push rod supporting shell; limiting grooves which are the same in number as the resistance increasing limiting blocks and correspond one to one are formed in the resistance increasing support shell and used for preventing the resistance increasing limiting blocks from moving axially; the resistance increasing limiting block is externally wrapped with a resistance increasing elastic protective sleeve; the inner surface of the resistance-increasing elastic protection sleeve is provided with grooves which are the same in number as the resistance-increasing limiting blocks and correspond to the resistance-increasing limiting blocks one by one, and the resistance-increasing elastic protection sleeve expands or contracts along with the radial movement of the resistance-increasing limiting blocks; the feeding electric telescopic push rods are electrically connected with the ground control end, the number of the feeding electric telescopic push rods is two, one feeding electric telescopic push rod is arranged between the two resistance increasing mechanisms and is called as a first feeding electric telescopic push rod, the other feeding electric telescopic push rod is arranged between the lower resistance increasing mechanism and the second drill bit and is called as a second feeding electric telescopic push rod, and the stroke and the movement speed of the first feeding electric telescopic push rod are twice of those of the second feeding electric telescopic push rod; the upper part of the first feeding electric telescopic push rod is fixedly connected with a resistance-increasing electric telescopic push rod in the upper resistance-increasing mechanism, the upper part of the second feeding electric telescopic push rod is fixedly connected with a resistance-increasing electric telescopic push rod in the lower resistance-increasing mechanism, and the lower parts of the first feeding electric telescopic push rod and the second feeding electric telescopic push rod are respectively connected with a corresponding propulsion joint; the upper part of the feeding push rod supporting shell is connected with the resistance-increasing push rod supporting shell and moves together with the resistance-increasing push rod supporting shell, and the feeding push rod supporting shell is sleeved outside the two feeding electric telescopic push rods and the two propelling connectors; when the feeding electric telescopic push rod extends out, the propelling joint is exposed out of the feeding push rod supporting shell, and when the feeding electric telescopic push rod is retracted, the propelling joint is positioned in the feeding push rod supporting shell;
the probe bin comprises a probe shell, the probe shell is of a hollow structure, an air inlet hole is formed in the side wall of the probe shell, and a detector is arranged inside the probe shell;
the probe bin opening and closing mechanism comprises a probe push rod supporting shell and a probe electric telescopic push rod, the probe electric telescopic push rod is electrically connected with the ground control end, the probe electric telescopic push rod is positioned above the probe shell and is connected with the probe shell through a pin, the probe electric telescopic push rod is in a withdrawing state in the static pressure drilling process, the probe electric telescopic push rod and the probe shell are positioned in the probe push rod supporting shell, and at the moment, the probe bin opening and closing mechanism is in a corresponding closing state; in the process of detecting the formation gas, the electric telescopic push rod of the probe is in an extending state, the probe shell is exposed outside the probe push rod supporting shell, the detector arranged in the probe shell executes a detection action, and at the moment, the opening and closing mechanism of the probe cabin is in a corresponding opening state;
the high-frequency low-amplitude rotary vibration generating mechanism comprises a rotary vibration motor joint, a rotary vibration motor, a thrust bearing, a vibration starting element joint, a vibration starting element, an auxiliary vibration roller, an auxiliary vibration transmission column, an auxiliary vibration supporting shell, an auxiliary vibration element and a first sealing sliding ring, wherein the rotary vibration motor is a hollow shaft motor, the rotary vibration motor is electrically connected with a ground control end, the upper part of the rotary vibration motor is connected with a second drill bit push rod supporting shell through the rotary vibration motor joint, and an output shaft of the rotary vibration motor is connected with the vibration starting element joint; the vibration starting element is arranged in the vibration starting element joint; the thrust bearing is arranged on the vibration starting element; the bottom of the oscillation starting element is of a wave-shaped structure; the auxiliary vibration element is of a semi-closed shell structure with an open top, four supporting legs are arranged on the upper surface of the auxiliary vibration element, two sides of the top of each supporting leg are inclined planes, each inclined plane corresponds to an auxiliary vibration transmission column matched with the inclined plane, the inclined plane part of each auxiliary vibration transmission column is in sliding fit with the inclined plane of each supporting leg, each auxiliary vibration transmission column is an assembly of a quadrangular prism and a right-angled triangular prism, the right-angled triangular prisms are fixed on the upper parts of the side surfaces of the quadrangular prisms, and the top surfaces of the quadrangular prisms and the right-angled triangular prisms are flush; an auxiliary vibration roller is embedded above each auxiliary vibration transmission column; the shape of one side of the auxiliary vibration roller far away from the auxiliary vibration transmission column is matched with the corrugated shape of the bottom corrugated structure of the vibration starting element, and the two auxiliary vibration rollers positioned on the two sides of the same supporting leg are alternately contacted with the bottom of the vibration starting element in a corrugated structure; the auxiliary vibration supporting shell is sleeved outside the auxiliary vibration transmission column and the supporting legs, the upper part of the auxiliary vibration supporting shell is connected with the vibration starting element joint, and the lower part of the auxiliary vibration supporting shell is connected with the second outer drill bit; the first sealing slip ring is disposed between the secondary vibration support housing and the second outer drill bit.
Furthermore, the outer surface of the resistance-increasing elastic protective sleeve is arranged to be of an uneven structure.
Preferably, the resistance-increasing elastic protection sleeve is a rubber sleeve.
Preferably, the number of the resistance-increasing limiting blocks is three.
The soil layer creeping type self-balancing static pressure feeding pore-forming system also comprises a first inner drill bit, a first outer drill bit, a first drill bit push rod supporting shell and a first drill bit electric telescopic push rod, wherein the first inner drill bit and the first outer drill bit are connected to form the first drill bit, the first inner drill bit is a cylindrical and conical combination, the cylinder is positioned below the cone, a limiting connecting key is arranged along the axial direction of the cylinder, and the bottom of the first inner drill bit is connected with the push rod end of the first drill bit electric telescopic push rod through a pin; the first outer drill bit is a combination of a hollow cylinder and a hollow inverted round platform shape, the hollow cylinder is positioned below the hollow inverted round platform shape, the inner wall of the hollow cylinder is provided with a limiting connecting groove matched with the limiting connecting key for sliding connection, and the hollow inverted round platform shape is provided with a hollow structure for the first inner drill bit to pass through; the first drill bit push rod supporting shell is connected with a resistance increasing supporting shell in the upper resistance increasing mechanism, and the first drill bit push rod supporting shell is sleeved outside the first drill bit electric telescopic push rod and is connected with the motor end of the first drill bit electric telescopic push rod; the electric telescopic push rod of the first drill bit is electrically connected with the ground control end, the push rod end of the electric telescopic push rod of the first drill bit can extend out of or retract into the first drill bit push rod supporting shell, when the push rod end of the electric telescopic push rod of the first drill bit extends out, the first inner drill bit is arranged in advance of the first outer drill bit, and when the push rod end of the electric telescopic push rod of the first drill bit retracts, the first inner drill bit is arranged inside the first outer drill bit.
Further, a sealing sliding ring groove used for containing a second sealing sliding ring is arranged on the cylindrical outer surface of the second inner drill bit along the circumferential direction, and the second sealing sliding ring is installed in the sealing sliding ring.
Through the design scheme, the invention can bring the following beneficial effects: the invention provides a soil layer creeping type self-balancing static pressure feeding pore-forming system, which comprises a double static pressure drill bit alternative telescopic mud breaking pore-forming mechanism, a creeping type self-pressurizing feeding mechanism, a high-frequency low-amplitude rotary vibration generating mechanism, a probe bin and a probe bin opening and closing mechanism, wherein the bionic self-balancing self-adapting principle is adopted to automatically complete downward static pressure feeding by combining the double static pressure drill bit alternative telescopic mud breaking pore-forming mechanism with the creeping type self-pressurizing feeding mechanism; the total feeding force can be intensively applied to the inner drill bit or the outer drill bit by adopting a double-drill-bit alternative telescopic mode, so that the static pressure rapid feeding is facilitated; the high-frequency low-amplitude vibration generated by the high-frequency low-amplitude rotary vibration generating mechanism acts on the drill bit, so that the complete set of drilling tool can smoothly break mud and enter the ruler; has the advantages of simplicity, rapidness, high efficiency, energy conservation and low cost.
Further beneficial effects of the invention are: the shallow gas detection underground can be carried out, for satisfying the detection needs, after arriving the prediction degree of depth or design depth interval, stretch out under the control of probe storehouse mechanism of opening and shutting through the detector that sets up in probe storehouse in advance and begin to detect gas, effectively realized the survey of finding out and occurrence and distribution rule of shallow gas.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limitation and are not intended to limit the invention in any way, and in which:
FIG. 1 is a schematic overall appearance diagram of a soil layer peristaltic self-balancing static pressure feeding hole forming system in an embodiment of the invention.
FIG. 2 is a schematic diagram of the overall internal structure of a soil layer peristaltic self-balancing static pressure feeding hole forming system in the embodiment of the invention.
FIG. 3 is a schematic cross-sectional view of the upper half of a soil layer peristaltic self-balancing static pressure feed pore-forming system in an embodiment of the present invention.
FIG. 4 is a schematic cross-sectional view of the lower half of a soil layer peristaltic self-balancing hydrostatic feed pore-forming system according to an embodiment of the present invention.
FIG. 5 is a partial enlarged view of a soil layer peristaltic self-balancing hydrostatic feed pore-forming system.
Fig. 6 is a schematic view of the overall structure of the resistance increasing mechanism.
Fig. 7 is a partial view of the resistance increasing mechanism.
Fig. 8 is a schematic view of the internal structure of the resistance increasing mechanism.
The respective symbols in the figure are as follows: 1-a first outer drill bit; 2-a first inner drill bit; 3-a first drill bit push rod support housing; 4, electrically telescoping a push rod by a first drill bit; 5-resistance-increasing elastic protective sleeve; 6-resistance-increasing limiting block; 7-resistance increasing adjusting piece; 8-resistance-increasing supporting shell; 9-resistance-increasing electric telescopic push rod; 10-resistance-increasing push rod supporting shell; 11-a feed ram support housing; 12-feeding an electric telescopic push rod; 13-a thrust joint; 14-probe pusher bar support housing; 15-probe electric telescopic push rod; 16-a probe housing; 17-a second bit push rod support housing; 18-a second drill electric telescopic push rod; 19-joint of rotary vibration motor; 20-a rotary vibration motor; 21-a vibration-initiating element joint; 22-a vibration-inducing element; 23-auxiliary vibration support shell; 24-a first sealing slip ring; 25-a second outer drill bit; 26-a second sealing slip ring; 27-a second inner drill bit; 28-a thrust bearing; 29-auxiliary vibration rollers; 30-auxiliary vibration transmission column; 31-auxiliary vibration element.
Detailed Description
In order to more clearly illustrate the invention, the invention is further described below with reference to preferred embodiments and the accompanying drawings. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.
In the description of the present invention, it is to be understood that the terms "first" and "second" are used for descriptive purposes only, and the features defined as "first" and "second" do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7 and fig. 8, a soil layer creeping type self-balancing static pressure feeding hole forming system comprises a double static pressure drill bit alternately telescopic mud breaking hole forming mechanism, a creeping type self-pressurizing feeding mechanism, a high-frequency low-amplitude rotational vibration generating mechanism, a probe bin and a probe bin opening and closing mechanism.
The double-static-pressure drill bit alternately-telescopic mud-breaking and hole-forming mechanism comprises a second inner drill bit 27, a second outer drill bit 25, a second sealing sliding ring 26, a second drill bit electric telescopic push rod 18 and a second drill bit push rod supporting shell 17, wherein the second inner drill bit 27 and the second outer drill bit 25 form a second drill bit, the second inner drill bit 27 is a cylindrical and conical combined body, the cylinder is positioned above the cone, a sealing sliding ring groove for accommodating the second sealing sliding ring 26 is circumferentially arranged on the outer cylindrical surface, the second sealing sliding ring 26 is installed in the sealing sliding ring groove, a raised limiting connecting key is axially arranged on the outer cylindrical surface, so that the second inner drill bit 27 can move in the second outer drill bit 25, and the top of the second inner drill bit 27 is connected with the push rod end of the second drill bit electric telescopic push rod 18 through a pin; the second drill bit push rod supporting shell 17 is sleeved outside the second drill bit electric telescopic push rod 18 and is connected with the motor end of the second drill bit electric telescopic push rod 18, the upper part of the second drill bit push rod supporting shell 17 is limited through the probe shell 16, and the lower part of the second drill bit push rod supporting shell is connected with the high-frequency low-amplitude rotary vibration generating mechanism; the second drill bit electric telescopic push rod 18 is electrically connected with the ground control end, and the push rod end of the second drill bit electric telescopic push rod 18 can extend out of or retract into the second drill bit push rod supporting shell 17; the second outer drill bit 25 is a combination of a hollow cylinder and a hollow inverted round table, the hollow cylinder is positioned above the hollow inverted round table, the inner wall of the hollow cylinder is provided with a limit connecting groove matched with the limit connecting key for sliding connection, the hollow inverted round table is provided with a hollow structure for the second inner drill bit 27 to pass through, in the static pressure drilling process, the push rod end of the second drill bit electric telescopic push rod 18 extends out, the second inner drill bit 27 is pressed into the soil further downwards before the second outer drill bit 25, the second inner drill bit 27 is kept static after being pressed into the soil, the second outer drill bit 25 is pressed into the soil downwards under the pushing action of the second drill bit push rod supporting shell 17 and the high-frequency low-amplitude rotary vibration generating mechanism along with the starting of the peristaltic self-pressurization feeding mechanism, and simultaneously, because the second drill bit push rod supporting shell 17 moves downwards, the push rod end of the second drill bit electric telescopic push rod 18 is recovered to the inside the second push rod drill bit supporting shell 17, completing one alternating drilling. The advantage of alternating drilling is that the total feed force is concentrated on the second inner drill bit 27 or the second outer drill bit 25, increasing its efficiency in drilling the mud layer. The second sealing slide ring 26 is used for ensuring the sealing performance when the second inner drill bit 27 and the second outer drill bit 25 are alternately extended and retracted.
The peristaltic self-pressurization feeding mechanism comprises two resistance increasing mechanisms, a feeding electric telescopic push rod 12, a feeding push rod supporting shell 11 and a propelling joint 13, the number of the resistance increasing mechanisms is two, the two resistance increasing mechanisms are arranged one above the other so as to simulate the moving process of earthworms, one resistance increasing mechanism is fixed with a soil body while the other resistance increasing mechanism is released, and the whole system drills downwards. In the description of the invention, for the sake of distinction, two resistance-increasing mechanisms are named as an upper resistance-increasing mechanism and a lower resistance-increasing mechanism respectively, the resistance-increasing mechanism positioned above is called as an upper resistance-increasing mechanism, the resistance-increasing mechanism positioned below is called as a lower resistance-increasing mechanism, the two resistance-increasing mechanisms are respectively composed of a resistance-increasing elastic protective sleeve 5, a resistance-increasing limiting block 6, a resistance-increasing adjusting piece 7, a resistance-increasing supporting shell 8, a resistance-increasing electric telescopic push rod 9 and a resistance-increasing push rod supporting shell 10, the number of the resistance-increasing limiting blocks 6 is at least two, the at least two resistance-increasing limiting blocks 6 are uniformly arranged on the outer wall of the resistance-increasing adjusting piece 7 at equal intervals, a wedge-shaped block is arranged at one side of the resistance-increasing limiting block 6 facing the resistance-increasing adjusting piece 7, the upper part of the resistance-increasing adjusting piece 7 is in a circular table-shaped structure with a small diameter at the upper part and, due to the structural limitation, the number of the resistance-increasing limiting blocks 6 is preferably three in consideration of the friction force, the bottom of the resistance-increasing adjusting piece 7 is connected with the push rod end of the resistance-increasing electric telescopic push rod 9 through a pin, and the resistance-increasing electric telescopic push rod 9 is electrically connected with the ground control end; the push rod end of the resistance-increasing electric telescopic push rod 9 is pushed out upwards to push the resistance-increasing adjusting piece 7 to move upwards, and the resistance-increasing limiting block 6 is matched with the resistance-increasing adjusting piece 7 in a wedge shape to enable the resistance-increasing limiting block 6 to generate radial displacement; the resistance-increasing push rod supporting shell 10 is sleeved outside the resistance-increasing electric telescopic push rod 9 and is fixedly connected with the motor end of the resistance-increasing electric telescopic push rod 9, the push rod end of the resistance-increasing electric telescopic push rod 9 can extend out of or retract into the resistance-increasing push rod supporting shell 10, the upper part of the resistance-increasing push rod supporting shell 10 is connected with the resistance-increasing supporting shell 8, the lower part of the resistance-increasing push rod supporting shell is connected with the feeding push rod supporting shell 11, and the resistance-increasing push rod supporting shell 10, the resistance-increasing supporting shell 8 and the feeding push rod supporting shell 11 move up and down; the resistance-increasing support shell 8 is provided with limiting grooves which are the same in number as the resistance-increasing limiting blocks 6 and correspond one to one, the limiting grooves are used for preventing the resistance-increasing limiting blocks 6 from moving axially, the resistance-increasing limiting blocks 6 move outwards along the radial direction under the mutual cooperation effect of the resistance-increasing adjusting piece 7, the resistance-increasing support shell 8 and the resistance-increasing electric telescopic push rod 9, and the resistance-increasing limiting blocks 6 move inwards along the radial direction under the elastic action of the resistance-increasing elastic protection sleeve 5. The outside parcel that increases and hinders stopper 6 has the resistance-increasing elastic protection cover 5 that uses elastic material to make, preferably, resistance-increasing elastic protection cover 5 is the rubber sleeve, the internal surface that increases and hinders elastic protection cover 5 is provided with the recess the same with the stopper 6 quantity of increasing and one-to-one, can cooperate with the stopper 6 that increases and hinders, resistance-increasing elastic protection cover 5 can expand or contract along with increasing and hindering stopper 6 along radial movement, the surface that increases and hinders elastic protection cover 5 is for increasing the structural design that hinders, if increase unevenness's decorative pattern for increase the frictional force between the elastic protection cover 5 that increases and hinder and the soil body. The feeding electric telescopic push rods 12 are electrically connected with the ground control end, the number of the feeding electric telescopic push rods is two, one feeding electric telescopic push rod 12 is arranged between the two resistance increasing mechanisms and is called as a first feeding electric telescopic push rod, the other feeding electric telescopic push rod 12 is arranged between the lower resistance increasing mechanism and the second drill and is called as a second feeding electric telescopic push rod, and the stroke and the moving speed of the first feeding electric telescopic push rod are twice of those of the second feeding electric telescopic push rod. The upper part of the first feeding electric telescopic push rod is fixedly connected with a resistance-increasing electric telescopic push rod 9 in the upper resistance-increasing mechanism, the upper part of the second feeding electric telescopic push rod is fixedly connected with the resistance-increasing electric telescopic push rod 9 in the lower resistance-increasing mechanism, the lower parts of the first feeding electric telescopic push rod and the second feeding electric telescopic push rod are respectively connected with a corresponding propelling joint 13 to play a role in transferring force, in the description of the invention, for the sake of distinction, the two thrust couplings 13 are respectively named first thrust coupling and second thrust coupling, the propelling joint 13 connected with the first feeding electric telescopic push rod is called a first propelling joint, the propelling joint 13 connected with the second feeding electric telescopic push rod is called a second propelling joint, the first propelling joint is connected with the resistance-increasing support shell 8 in the lower resistance-increasing mechanism, and the second propelling joint is connected with the probe push rod support shell 14; the feeding push rod supporting shell 11 is sleeved outside the two feeding electric telescopic push rods 12 and the two pushing connectors 13, when the feeding electric telescopic push rods 12 extend out, the pushing connectors 13 are pushed to extend out of the feeding push rod supporting shell 11, and the pushing connectors 13 push parts below the feeding push rods to move; when the feeding electric telescopic push rod 12 is retracted, the propelling joint 13 enters the feeding push rod supporting shell 11; the upper part of the feed push rod supporting shell 11 is connected with the resistance-increasing push rod supporting shell 10 and moves with the same.
During operation, at first, the resistance-increasing electric telescopic push rod 9 in the resistance-increasing mechanism stretches out, the resistance-increasing adjusting piece 7 is pushed to move upwards, under the combined action of the wedge surface and the resistance-increasing supporting shell 8, the resistance-increasing limiting block 6 can move radially, the resistance-increasing elastic protection sleeve 5 can expand at the moment, the resistance-increasing outer surface of the resistance-increasing elastic protection sleeve 5 can generate large friction with the hole wall, the system is prevented from moving upwards, meanwhile, the first feeding electric telescopic push rod stretches out, the whole system is pushed to move downwards to drill, at the moment, the second feeding electric telescopic push rod is in a stretching state, the stroke and the movement speed of the first feeding electric telescopic push rod are twice those of the stroke and the movement speed of the second feeding electric telescopic push rod, and the second feeding electric telescopic push rod can retract when the system moves downwards to drill. And then the resistance increasing mechanism is arranged for removing the resistance, the resistance increasing elastic protection sleeve 5 extrudes the resistance increasing limiting block 6 inwards when the resistance is removed, the resistance increasing adjusting part 7 and the resistance increasing electric telescopic push rod 9 move downwards, meanwhile, the resistance increasing mechanism starts to increase the resistance, then the first feeding electric telescopic push rod is retracted, the second feeding electric telescopic push rod extends out, and the system drills downwards. With this circulation, the system can drill down at a constant rate.
When the resistance of any one resistance increasing mechanism is increased, the second drill bit electric telescopic push rod 18 can push the second inner drill bit 27 to extend out for drilling. When any one feeding electric telescopic push rod 12 extends out, the second outer drill bit 25 is pushed to move downwards by a part above the second outer drill bit 25.
The probe cabin comprises a probe shell 16, the probe shell 16 is designed to be a hollow structure, various detectors can be installed inside the probe shell 16, air inlets are formed in the side wall of the probe shell 16 along the circumferential direction at intervals of 30 degrees, and air can be detected through the air inlets. The detectors are mainly detectors and sensors.
The probe bin opening and closing mechanism comprises a probe push rod supporting shell 14 and a probe electric telescopic push rod 15, the probe electric telescopic push rod 15 is electrically connected with a ground control end, and the probe electric telescopic push rod 15 is positioned above a probe shell 16 and is connected with the probe shell through a pin; the probe push rod supporting shell 14 is sleeved outside the probe electric telescopic push rod 15 and the probe shell 16.
In the normal static pressure drilling process, the opening and closing mechanism of the probe cabin is in a closed state, the electric telescopic push rod 15 of the probe is in a withdrawing state at the moment, and the probe shell 16 is completely wrapped in the probe push rod supporting shell 14.
When the gas layer is detected, the ground control end supplies power to the probe electric telescopic push rod 15, the probe electric telescopic push rod 15 extends out, the probe shell 16 is exposed out of the probe push rod supporting shell 14, the detector and the sensor installed in the probe shell start to work, detected data are transmitted to a receiving system on the ground in time, analysis and judgment of technicians are facilitated, and after detection is finished, the probe cabin opening and closing mechanism is closed to perform operations such as next-step drilling and the like.
The high-frequency low-amplitude rotary vibration generating mechanism comprises a rotary vibration motor joint 19, a rotary vibration motor 20, a thrust bearing 28, a vibration starting element joint 21, a vibration starting element 22, an auxiliary vibration roller 29, an auxiliary vibration transmission column 30, an auxiliary vibration supporting shell 23, an auxiliary vibration element 31 and a first sealing sliding ring 24, wherein the rotary vibration motor 20 is a hollow shaft motor, the rotary vibration motor 20 is electrically connected with a ground control end, the upper part of the rotary vibration motor 20 is connected with a second drill bit push rod supporting shell 17 through the rotary vibration motor joint 19, and an output shaft of the rotary vibration motor 20 is connected with the vibration starting element joint 21; the vibration starting element 22 is arranged in the vibration starting element joint 21; thrust bearing 28 is mounted on vibration-inducing element 22; the bottom of the vibration starting element 22 is in a wave-shaped structure; the auxiliary vibration element 31 is of a semi-closed shell structure with an open top, four supporting legs are arranged on the upper surface of the auxiliary vibration element 31, two sides of the top of each supporting leg are inclined planes, each inclined plane corresponds to an auxiliary vibration transmission column 30 matched with the inclined plane, the inclined plane part of each auxiliary vibration transmission column 30 is in sliding fit with the inclined plane of each supporting leg, each auxiliary vibration transmission column 30 is a combination of a quadrangular prism and a right-angled triangular prism, the right-angled triangular prism is fixed on the upper part of the side surface of the quadrangular prism, and the top surfaces of the quadrangular prism and the right-angled triangular prism are flush; an auxiliary vibration roller 29 is embedded above each auxiliary vibration transmission column 30; the shape of one side of the auxiliary vibration roller 29, which is far away from the auxiliary vibration transmission column 30, is matched with the corrugated shape of the bottom corrugated structure of the vibration starting element 22, and the two auxiliary vibration rollers 29 positioned on the two sides of the same supporting leg are alternately contacted with the bottom of the vibration starting element 22 in a corrugated structure; the auxiliary vibration supporting shell 23 is sleeved outside the auxiliary vibration transmission column 30 and the supporting legs, the upper part of the auxiliary vibration supporting shell 23 is connected with the vibration starting element joint 21, and the lower part of the auxiliary vibration supporting shell 23 is connected with the second outer drill bit 25; a first sealing slide ring 24 is arranged between the secondary vibration support housing 23 and the second outer drill bit 25.
The whole high-frequency low-amplitude rotary vibration generating mechanism drives the vibration generating element 22 to rotate through the rotary vibration motor 20, and the thrust bearing 28 plays a role in supporting a rotating part and reducing friction. The bottom of the vibration starting element 22 is in a wave-shaped design, the auxiliary vibration rollers 29 are matched with the auxiliary vibration rollers 29 to enable the auxiliary vibration rollers 29 to alternately compress the auxiliary vibration rollers 29 downwards periodically, axial vibration is converted into circumferential vibration by means of the inclined surfaces of the auxiliary vibration transmission columns 30, the auxiliary vibration element 31 vibrates circumferentially for 30-50 times every time the vibration starting element 22 rotates, and the amplitude is about 0.5 mm. The first sealing slide ring 24 serves for sealing.
The creeping self-balancing static pressure feeding pore-forming system also comprises a first inner drill bit 1, a first outer drill bit 2, a first drill bit push rod supporting shell 3 and a first drill bit electric telescopic push rod 4, wherein the first inner drill bit 1 and the first outer drill bit 2 are connected to form the first drill bit, the first inner drill bit 1 is a cylindrical and conical combination, the cylinder is positioned below the cone, a limiting connecting key is arranged along the axial direction of the cylinder, and the bottom of the first inner drill bit 1 is connected with the push rod end of the first drill bit electric telescopic push rod 4 through a pin; the first outer drill bit 2 is a combination of a hollow cylinder and a hollow inverted round platform, the hollow cylinder is positioned below the hollow inverted round platform, the inner wall of the hollow cylinder is provided with a limit connecting groove matched with the limit connecting key for sliding connection, and the hollow inverted round platform is provided with a hollow structure for the first inner drill bit 1 to pass through; the first drill bit push rod supporting shell 3 is connected with a resistance-increasing supporting shell 8 in the upper resistance-increasing mechanism to play a role in protecting support and transferring force, and the first drill bit push rod supporting shell 3 is sleeved outside the first drill bit electric telescopic push rod 4 and is connected with a motor end of the first drill bit electric telescopic push rod 4; the electric telescopic push rod 4 of the first drill bit is electrically connected with the ground control end, the push rod end of the electric telescopic push rod 4 of the first drill bit can extend out or retract into the first drill bit push rod supporting shell 3, when the push rod end of the electric telescopic push rod 4 of the first drill bit extends out, the first inner drill bit 1 is arranged in advance of the first outer drill bit 2, and when the push rod end of the electric telescopic push rod 4 of the first drill bit retracts, the first inner drill bit 1 is arranged inside the first outer drill bit 2. After finishing the pore-forming task, through the cooperation of first interior drill bit 1, first outer drill bit 2, first drill bit push rod supporting shell 3 and the electronic flexible push rod 4 of first drill bit, propose entire system.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that various changes and modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious changes and modifications may be made within the scope of the present invention.
Claims (6)
1. A soil layer peristaltic self-balancing static pressure feeding pore-forming system is characterized by comprising: the device comprises a double static pressure drill bit alternate telescopic mud breaking and hole forming mechanism, a peristaltic self-pressurizing feeding mechanism, a high-frequency low-amplitude rotary vibration generating mechanism, a probe bin and a probe bin opening and closing mechanism;
the double-static-pressure drill bit alternately-telescopic mud-breaking hole-forming mechanism comprises a second inner drill bit (27), a second outer drill bit (25), a second sealing sliding ring (26), a second drill bit electric telescopic push rod (18) and a second drill bit push rod supporting shell (17), wherein the second inner drill bit (27) and the second outer drill bit (25) form a second drill bit, the second inner drill bit (27) is a cylindrical and conical combined body, the cylindrical shape is positioned above the conical shape, a raised limiting connecting key is axially arranged on the outer cylindrical surface, and the top of the second inner drill bit (27) is connected with the push rod end of the second drill bit electric telescopic push rod (18) through a pin; the second drill bit push rod supporting shell (17) is sleeved outside the second drill bit electric telescopic push rod (18) and is connected with the motor end of the second drill bit electric telescopic push rod (18), the upper part of the second drill bit push rod supporting shell (17) is limited through the probe shell (16), and the lower part of the second drill bit push rod supporting shell is connected with the high-frequency low-amplitude rotary vibration generating mechanism; the second drill bit electric telescopic push rod (18) is electrically connected with the ground control end, the push rod end of the second drill bit electric telescopic push rod (18) can extend out of or retract into the second drill bit push rod supporting shell (17), when the push rod end of the second drill bit electric telescopic push rod (18) extends out, the second inner drill bit (27) is arranged in advance of the second outer drill bit (25), and when the push rod end of the second drill bit electric telescopic push rod (18) retracts, the second inner drill bit (27) is positioned in the second outer drill bit (25); the second outer drill bit (25) is a combination of a hollow cylinder and a hollow inverted round table shape, the hollow cylinder is positioned above the hollow inverted round table shape, a limiting connecting groove matched with the limiting connecting key in sliding connection is arranged on the inner wall of the hollow cylinder, a hollow structure for the second inner drill bit (27) to penetrate through is formed in the hollow inverted round table shape, and a second sealing sliding ring (26) is arranged between the second inner drill bit (27) and the second outer drill bit (25);
the peristaltic self-pressurizing feeding mechanism comprises two resistance-increasing mechanisms, a feeding electric telescopic push rod (12), a feeding push rod supporting shell (11) and a propelling joint (13), wherein the two resistance-increasing mechanisms are arranged one above the other, the resistance-increasing mechanism positioned above the resistance-increasing mechanism is called an upper resistance-increasing mechanism, the resistance-increasing mechanism positioned below the resistance-increasing mechanism is called a lower resistance-increasing mechanism, and the two resistance-increasing mechanisms are respectively provided with a resistance-increasing elastic protective sleeve (5) and a resistance-increasing limiting block (6), the resistance-increasing adjusting piece (7), the resistance-increasing supporting shell (8), the resistance-increasing electric telescopic push rod (9) and the resistance-increasing push rod supporting shell (10) are formed, the number of the resistance-increasing limiting blocks (6) is at least two, the at least two resistance-increasing limiting blocks (6) are uniformly arranged on the outer wall of the resistance-increasing adjusting piece (7) at equal intervals, and one side, facing the resistance-increasing adjusting piece (7), of each resistance-increasing limiting block (6) is provided with a wedge-shaped block; the upper part of the resistance-increasing adjusting part (7) is of a circular truncated cone-shaped structure with a small diameter at the top and a large diameter at the bottom, one side of the resistance-increasing adjusting part (7) facing the resistance-increasing limiting block (6) is provided with a wedge-shaped groove matched with the wedge-shaped block in a wedge-shaped manner, the bottom of the resistance-increasing adjusting part (7) is connected with the push rod end of the resistance-increasing electric telescopic push rod (9) through a pin, the resistance-increasing electric telescopic push rod (9) is electrically connected with a ground control end, when the push rod end of the resistance-increasing electric telescopic push rod (9) is pushed upwards, the resistance-increasing adjusting part (7) is pushed to move upwards, and the; the resistance-increasing push rod supporting shell (10) is sleeved outside the resistance-increasing electric telescopic push rod (9) and is fixedly connected with the motor end of the resistance-increasing electric telescopic push rod (9), the push rod end of the resistance-increasing electric telescopic push rod (9) can extend out of or retract into the resistance-increasing push rod supporting shell (10), the upper part of the resistance-increasing push rod supporting shell (10) is connected with the resistance-increasing supporting shell (8), and the lower part of the resistance-increasing push rod supporting shell is connected with the feeding push rod supporting shell (11); limiting grooves which are the same in number as the resistance-increasing limiting blocks (6) and correspond one to one are formed in the resistance-increasing supporting shell (8) and used for preventing the resistance-increasing limiting blocks (6) from moving axially; the resistance increasing limiting block (6) is externally wrapped with a resistance increasing elastic protective sleeve (5); grooves which are the same as the resistance increasing limiting blocks (6) in number and correspond to the resistance increasing limiting blocks (6) one by one are formed in the inner surface of each resistance increasing elastic protective sleeve (5), and the resistance increasing elastic protective sleeves (5) expand or contract along with the radial movement of the resistance increasing limiting blocks (6); the feeding electric telescopic push rods (12) are electrically connected with the ground control end, the number of the feeding electric telescopic push rods is two, one feeding electric telescopic push rod (12) is arranged between the two resistance increasing mechanisms and is called as a first feeding electric telescopic push rod, the other feeding electric telescopic push rod (12) is arranged between the lower resistance increasing mechanism and a second drill bit and is called as a second feeding electric telescopic push rod, and the stroke and the movement speed of the first feeding electric telescopic push rod are twice of those of the second feeding electric telescopic push rod; the upper part of a first feeding electric telescopic push rod is fixedly connected with a resistance-increasing electric telescopic push rod (9) in an upper resistance-increasing mechanism, the upper part of a second feeding electric telescopic push rod is fixedly connected with the resistance-increasing electric telescopic push rod (9) in a lower resistance-increasing mechanism, the lower parts of the first feeding electric telescopic push rod and the second feeding electric telescopic push rod are respectively connected with a corresponding propelling joint (13), wherein the propelling joint (13) connected with the first feeding electric telescopic push rod is called a first propelling joint, the propelling joint (13) connected with the second feeding electric telescopic push rod is called a second propelling joint, the first propelling joint is connected with a resistance-increasing support shell (8) in the lower resistance-increasing mechanism, and the second propelling joint is connected with a probe push rod support shell (14); the upper part of the feeding push rod supporting shell (11) is connected with the resistance-increasing push rod supporting shell (10) and moves together with the resistance-increasing push rod supporting shell, and the feeding push rod supporting shell (11) is sleeved outside the two feeding electric telescopic push rods (12) and the two propelling connectors (13); when the feeding electric telescopic push rod (12) extends out, the propelling joint (13) is exposed out of the feeding push rod supporting shell (11), and when the feeding electric telescopic push rod (12) retracts, the propelling joint (13) is positioned in the feeding push rod supporting shell (11);
the probe bin comprises a probe shell (16), the probe shell (16) is of a hollow structure, an air inlet hole is formed in the side wall of the probe shell (16), and a detector is arranged inside the probe shell;
the probe bin opening and closing mechanism comprises a probe push rod supporting shell (14) and a probe electric telescopic push rod (15), the probe electric telescopic push rod (15) is electrically connected with a ground control end, the probe electric telescopic push rod (15) is positioned above the probe shell (16) and is connected with the probe shell (16) through a pin, the probe electric telescopic push rod (15) is in a withdrawing state, the probe electric telescopic push rod (15) and the probe shell (16) are positioned inside the probe push rod supporting shell (14) in the static pressure drilling process, and at the moment, the probe bin opening and closing mechanism is in a corresponding closing state; in the process of detecting the formation gas, the electric telescopic push rod (15) of the probe is in an extending state, the probe shell (16) is exposed out of the probe push rod supporting shell (14), the detector arranged in the probe shell (16) executes a detection action, and at the moment, the opening and closing mechanism of the probe cabin is correspondingly opened;
the high-frequency low-amplitude rotary vibration generating mechanism comprises a rotary vibration motor joint (19), a rotary vibration motor (20), a thrust bearing (28), a vibration starting element joint (21), a vibration starting element (22), an auxiliary vibration roller (29), an auxiliary vibration transmission column (30), an auxiliary vibration supporting shell (23), an auxiliary vibration element (31) and a first sealing sliding ring (24), wherein the rotary vibration motor (20) is a hollow shaft motor, the rotary vibration motor (20) is electrically connected with a ground control end, the upper part of the rotary vibration motor (20) is connected with a second drill bit push rod supporting shell (17) through the rotary vibration motor joint (19), and an output shaft of the rotary vibration motor (20) is connected with the vibration starting element joint (21); the vibration starting element (22) is arranged in the vibration starting element joint (21); the thrust bearing (28) is arranged on the vibration starting element (22); the bottom of the oscillation starting element (22) is of a wave-shaped structure; the auxiliary vibration element (31) is of a semi-closed shell structure with an open top, four supporting legs are arranged on the upper surface of the auxiliary vibration element (31), the two sides of the top of each supporting leg are inclined planes, each inclined plane corresponds to an auxiliary vibration transmission column (30) matched with the inclined plane, the inclined plane part of each auxiliary vibration transmission column (30) is in sliding fit with the inclined plane of the supporting leg, each auxiliary vibration transmission column (30) is an assembly of a quadrangular prism and a right-angled triangular prism, the right-angled triangular prism is fixed on the upper part of the side surface of the quadrangular prism, and the top surfaces of the quadrangular prism and the right-angled triangular prism are flush; an auxiliary vibration roller (29) is embedded above each auxiliary vibration transmission column (30); the shape of one side of the auxiliary vibration roller (29) far away from the auxiliary vibration transmission column (30) is matched with the corrugated shape of the bottom corrugated structure of the vibration starting element (22), and the two auxiliary vibration rollers (29) positioned on the two sides of the same supporting leg are alternately contacted with the bottom of the vibration starting element (22) in a corrugated structure; the auxiliary vibration supporting shell (23) is sleeved outside the auxiliary vibration transmission column (30) and the supporting legs, the upper part of the auxiliary vibration supporting shell (23) is connected with the vibration starting element joint (21), and the lower part of the auxiliary vibration supporting shell (23) is connected with the second outer drill bit (25); a first sealing slide ring (24) is arranged between the secondary vibration support housing (23) and the second outer drill bit (25).
2. The soil layer peristaltic self-balancing static pressure feed pore-forming system of claim 1, wherein: the outer surface of the resistance-increasing elastic protective sleeve (5) is of an uneven structure.
3. Soil layer peristaltic self-balancing static pressure feed pore-forming system according to claim 1 or 2, characterized in that: the resistance-increasing elastic protective sleeve (5) is a rubber sleeve.
4. The soil layer peristaltic self-balancing static pressure feed pore-forming system of claim 1, wherein: the number of the resistance-increasing limiting blocks (6) is three.
5. The soil layer peristaltic self-balancing static pressure feed pore-forming system of claim 1, wherein: the drill bit further comprises a first inner drill bit (1), a first outer drill bit (2), a first drill bit push rod supporting shell (3) and a first drill bit electric telescopic push rod (4), wherein the first inner drill bit (1) and the first outer drill bit (2) are connected to form the first drill bit, the first inner drill bit (1) is a cylindrical and conical combination, the cylindrical combination is positioned below the conical shape, a limiting connecting key is arranged along the cylindrical axial direction, and the bottom of the first inner drill bit (1) is connected with the push rod end of the first drill bit electric telescopic push rod (4) through a pin; the first outer drill bit (2) is a combination of a hollow cylinder and a hollow inverted round table shape, the hollow cylinder is positioned below the hollow inverted round table shape, the inner wall of the hollow cylinder is provided with a limiting connecting groove which is matched and slidably connected with the limiting connecting key, and the hollow inverted round table shape is provided with a hollow structure for the first inner drill bit (1) to pass through; the first drill bit push rod supporting shell (3) is connected with a resistance increasing supporting shell (8) in the upper resistance increasing mechanism, and the first drill bit push rod supporting shell (3) is sleeved outside the first drill bit electric telescopic push rod (4) and is connected with a motor end of the first drill bit electric telescopic push rod (4); the electric telescopic push rod (4) of the first drill bit is electrically connected with the ground control end, the push rod end of the electric telescopic push rod (4) of the first drill bit can stretch out or retract into the first drill bit push rod supporting shell (3), when the push rod end of the electric telescopic push rod (4) of the first drill bit stretches out, the first inner drill bit (1) is arranged in advance of the first outer drill bit (2), and when the push rod end of the electric telescopic push rod (4) of the first drill bit retracts, the first inner drill bit (1) is arranged inside the first outer drill bit (2).
6. The soil layer peristaltic self-balancing static pressure feed pore-forming system of claim 1, wherein: a sealing sliding ring groove for accommodating a second sealing sliding ring (26) is arranged on the cylindrical outer surface of the second inner drill bit (27) along the circumferential direction, and the second sealing sliding ring (26) is installed in the sealing sliding ring.
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| CN202010830689.6A CN111852328A (en) | 2020-08-18 | 2020-08-18 | Soil layer peristaltic self-balancing static pressure feeding pore-forming system |
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| CN202010830689.6A CN111852328A (en) | 2020-08-18 | 2020-08-18 | Soil layer peristaltic self-balancing static pressure feeding pore-forming system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114059970A (en) * | 2021-11-16 | 2022-02-18 | 吉林大学 | Bidirectional rotary multifunctional experiment platform with vibration function |
| CN115059072A (en) * | 2022-06-23 | 2022-09-16 | 上海隧道工程有限公司 | Pore-forming static pressure end structure of probe hole in soft soil stratum and pore-forming technology |
-
2020
- 2020-08-18 CN CN202010830689.6A patent/CN111852328A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114059970A (en) * | 2021-11-16 | 2022-02-18 | 吉林大学 | Bidirectional rotary multifunctional experiment platform with vibration function |
| CN115059072A (en) * | 2022-06-23 | 2022-09-16 | 上海隧道工程有限公司 | Pore-forming static pressure end structure of probe hole in soft soil stratum and pore-forming technology |
| CN115059072B (en) * | 2022-06-23 | 2024-03-29 | 上海隧道工程有限公司 | Hole-forming static pressure end structure and hole-forming technology for detection holes in soft soil stratum |
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