CN113863869A - Drilling device and drilling process for geotechnical engineering investigation - Google Patents
Drilling device and drilling process for geotechnical engineering investigation Download PDFInfo
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- CN113863869A CN113863869A CN202111157724.3A CN202111157724A CN113863869A CN 113863869 A CN113863869 A CN 113863869A CN 202111157724 A CN202111157724 A CN 202111157724A CN 113863869 A CN113863869 A CN 113863869A
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- 238000005553 drilling Methods 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000011835 investigation Methods 0.000 title claims abstract description 25
- 238000005070 sampling Methods 0.000 claims abstract description 26
- 239000011435 rock Substances 0.000 claims description 33
- 239000002689 soil Substances 0.000 claims description 31
- 238000010276 construction Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 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
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
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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
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
- E21B15/006—Means for anchoring the drilling machine to the ground
-
- 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
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
- E21B3/022—Top drives
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
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- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Power Engineering (AREA)
- Earth Drilling (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The application discloses probing device and probing process for geotechnical engineering investigation, relate to the technical field of geotechnical engineering investigation, it includes spiral uide bushing and drilling rod, the drill bit is installed to the bottom of drilling rod, spiral uide bushing and drilling rod screw-thread fit, be provided with the support ring under the spiral uide bushing, the mounting groove has been seted up to the up end of support ring, the inside of mounting groove slides along the horizontal direction and is provided with the regulation ring, the external diameter of regulation ring is greater than the internal diameter of support ring, it is fixed continuous with the spiral uide bushing to adjust the ring, the lateral wall of mounting groove evenly has seted up at least three groove of dodging along the circumference of support ring, the inside rotation of dodging the groove is provided with the regulation disc, there is the interval in the center and the rotation axle center of regulation disc, the top of support ring is provided with the locating component who is used for advancing line location to the regulation disc. This application is through adjusting the position of spiral uide bushing to can guarantee that the drill bit is located the sampling point directly over, and then promote the accuracy of probing the sample.
Description
Technical Field
The application relates to the technical field of geotechnical engineering investigation, in particular to a drilling device and a drilling process for geotechnical engineering investigation.
Background
Geotechnical engineering investigation is an important ring in the engineering construction process, and fixed-point sampling is carried out on the geotechnics of the construction site through drilling equipment, so that the geology, the environmental characteristics and the geotechnical engineering conditions of the construction site are found out, analyzed and evaluated, and the construction safety and the construction efficiency of the engineering construction are guaranteed.
The Chinese utility model patent with the publication number of CN206693914U in the related art discloses a drilling device for geotechnical engineering investigation, which comprises a spiral guide sleeve and a drill rod, wherein the drill rod is a screw rod arranged along the vertical direction, and the spiral guide sleeve is in threaded fit with the drill rod; the spiral guide sleeve is uniformly provided with three cross beams along the circumferential direction, the cross beams are arranged along the horizontal direction, and the spiral guide sleeve is connected with the end parts of the cross beams; the end of the beam far away from the spiral guide sleeve is connected with a connecting sleeve, the bottom end of the connecting sleeve is inserted with a supporting leg, and the bottom end of the supporting leg is provided with a sharp end so that the supporting leg can be conveniently inserted into rock soil, and the spiral guide sleeve is supported and positioned through the supporting leg; the top of drilling rod is provided with the handle, and the drill bit is installed to the bottom of drilling rod, can order about the inside that the drill bit inserted the ground through rotating handle to carry out the probing sample to the ground.
However, the outriggers must be inserted into the rock before drilling, and if the position of the drill bit deviates from the sampling point, it is difficult to adjust the position of the drill bit, so that the accuracy of drilling and sampling is low.
Disclosure of Invention
In order to promote the accuracy of probing the sample, this application provides a drilling rig and drilling technology for geotechnical engineering investigation.
In a first aspect, the present application provides a drilling rig for geotechnical engineering investigation, which adopts the following technical scheme:
the utility model provides a probing device for geotechnical engineering reconnaissance, includes spiral uide bushing and drilling rod, the drill bit that is used for carrying out the probing to the ground is installed to the bottom of drilling rod, the spiral uide bushing with drilling rod screw-thread fit, be provided with the support ring under the spiral uide bushing, the mounting groove has been seted up to the up end of support ring, the inside of mounting groove slides along the horizontal direction and is provided with the regulation ring, the external diameter of adjusting the ring is greater than the internal diameter of support ring, it is fixed continuous with the spiral uide bushing to adjust the ring, the lateral wall of mounting groove evenly has seted up at least three groove of dodging along the circumference of support ring, the inside rotation of dodging the groove is provided with the regulation disc, there is the interval in the center and the rotation axle center of regulation disc, the top of support ring is provided with the locating component who is used for fixing a position the regulation disc.
By adopting the technical scheme, the drill bit is arranged at the bottom end of the drill rod, and the drill rod can move in the vertical direction under the guidance of the spiral guide sleeve by rotating the drill rod in the using process of the drilling device, so that the drill bit is inserted into rock soil; before the probing, through the slip regulation ring for the sampling point is located the drill bit under, rotates the adjusting disc, makes the lateral wall of adjusting disc offset with the lateral wall of adjusting the ring, and fixes a position the adjusting disc through locating component, thereby makes the drilling rod fix a position directly over the sampling point, and then promotes the degree of accuracy of probing the sample.
Optionally, the rotation axle center of adjusting the disc runs through there is the mounting hole, the inner wall of mounting hole is provided with first stopper along its circumference interval, the top of first stopper is formed with first butt inclined plane, locating component includes the position sleeve, the position sleeve with mounting hole sliding fit, the bottom interval of position sleeve is provided with the second stopper, the bottom of second stopper is formed with the second butt inclined plane that is used for ordering about the regulation disc and supports tight regulation ring, be provided with the retaining member that is used for ordering about first butt inclined plane and supports tight second butt inclined plane on the support ring.
Through adopting above-mentioned technical scheme, when adjusting the disc and adjusting the ring and offset, order about first butt inclined plane through the retaining member and support tight second butt inclined plane for adjust the disc and have to be close to regulation ring direction pivoted trend, thereby make and adjust the disc and support tightly in the lateral wall of adjusting the ring, and then will adjust the ring and fix a position.
Optionally, the fixed connecting rod that is provided with in positioning sleeve's top, the retaining member includes the check lock, the check lock rotates and wears to locate positioning sleeve's inside, the connecting rod is worn out on the top of check lock, the top of check lock is provided with the knob, the lower terminal surface of knob offsets with the up end of connecting rod, the diapire of dodging the groove has seted up the locating hole, locating hole and check lock screw-thread fit, the support ring is provided with the guide that is used for guiding positioning sleeve to slide along vertical direction.
By adopting the technical scheme, the locking rod can be driven to vertically move downwards by screwing the knob, the lower end face of the knob is abutted against the upper end face of the connecting rod, the positioning sleeve can be limited, and therefore the first abutting inclined face is driven to abut against the second abutting inclined face; the guide can guide the sliding of position sleeve along vertical direction to promote position sleeve's stability.
Optionally, the guide piece includes the guide bar, the guide bar with the connecting rod is fixed continuous, the guide way has been seted up on the top of support ring, guide bar and guide way sliding fit.
Through adopting above-mentioned technical scheme, the connecting rod is even as an organic whole with position sleeve and guide bar for the guide bar slides along vertical direction with position sleeve in step, and the in-process of the check lock pole of screwing, the guide bar slides along the guide way, can guide position sleeve to slide along vertical direction, and restriction position sleeve rotates simultaneously, thereby promotes the stability when adjusting the disc location.
Optionally, the adjusting disc is provided with a positioning ring on the circumferential side, and a positioning ring groove for clamping the positioning ring is formed in the outer side wall of the adjusting disc.
Through adopting above-mentioned technical scheme, go into the inside of holding ring groove with the holding ring card, can restrict to adjust the ring and slide along vertical direction to promote the stability of being connected between adjusting disc and the regulation ring.
Optionally, the lower end face of the support ring is provided with an insert rod for inserting into rock soil, and the bottom end of the insert rod is provided with a tip.
By adopting the technical scheme, the inserted rod is inserted into the rock soil, so that the ground grabbing force of the supporting circular ring can be improved, and the stability of the drilling device in the using process is improved; the bottom end of the inserted bar is set to be a tip end, so that the inserted bar can be conveniently inserted into rock soil.
Optionally, a connecting sleeve is arranged right above the spiral guide sleeve, a forward and reverse rotation motor for driving the drill rod to rotate is arranged at the top end of the connecting sleeve, and holding rods are fixedly arranged on two sides of the connecting sleeve.
By adopting the technical scheme, the drill rod is driven to rotate by the forward and reverse rotating motor in the drilling process, so that the working strength of a user can be reduced, and the efficiency of drilling operation is improved; the setting of holding rod facilitates the user and grips to make things convenient for the staff to carry out the probing operation.
Optionally, be provided with three piece at least spinal branch vaulting poles between support ring and the connecting sleeve, wherein one end of bracing piece links to each other with the connecting sleeve is articulated, it is provided with the regulation pole to support the ring lateral wall along circumference slip, adjust the radial setting of pole along supporting the ring, there is the interval in the lower terminal surface of adjusting the pole and the lower terminal surface that supports the ring, the quantity of adjusting the pole is the same with the bracing piece, the bracing piece is kept away from the one end of connecting sleeve and is articulated to have the slider, adjust the pole and seted up the spout along its length direction, slider and spout sliding fit.
By adopting the technical scheme, the supporting rod can support the connecting sleeve, so that the overall stability of the drilling device is improved; the in-process that the drilling rod moved down, the slider is kept away from the one end that supports the ring to the spout and is slided, and drilling equipment is when using simultaneously, and there is the interval in the surface of ground and the lower terminal surface of adjusting the pole for positive and negative motor can order about the regulation pole at the in-process of work and produce resonance, thereby can cut down the vibration that is used in the drilling rod, thereby promotes drilling equipment accuracy and stability at the probing in-process.
Optionally, the storage tank has been seted up at the lower terminal surface interval of adjusting the pole, the inside slip of storage tank is provided with the buffer block, the lateral wall arch of buffer block is provided with extends the ring, the lateral wall that extends the ring is laminated with the inner wall of storage tank mutually, the notch of storage tank is provided with the spacing ring, the inside of storage tank is provided with and is used for ordering about the spring that extends ring and spacing ring offset, when extending ring and spacing ring offset, the bottom of buffer block and the lower terminal surface parallel and level that supports the ring.
Through adopting above-mentioned technical scheme, adjust the pole and produce the vibration, can order about the buffer block constantly to strike the surface of ground to make the buffer block slide along the storage tank, thereby order about the spring and compress and the process that resets repeatedly, and then reduce the vibration of adjusting the pole.
In a second aspect, the present application provides a drilling process, which employs the following technical solutions:
the drilling process of the drilling device for the geotechnical engineering investigation comprises the following steps:
s1: placing the supporting circular ring on the surface of rock soil, enabling the sampling point to be located at the position, close to the center, of the supporting circular ring, and then inserting the inserted rod into the interior of the rock soil, so as to position the drilling device;
s2: sliding the adjusting ring to enable the drill bit to move right above the sampling point; then, rotating the adjusting disk to enable the side wall of the adjusting disk to be abutted against the outer side wall of the adjusting ring; then inserting the positioning sleeve into the mounting hole to enable the first abutting inclined surface to abut against the second abutting inclined surface; finally, the locking rod is screwed, and the positioning sleeve is tightly propped downwards through the knob;
s3: holding the holding rod and starting a forward and reverse rotating motor, and driving the drill bit to synchronously rotate by the drill rod so that the drill bit is inserted into the rock soil;
s4: the forward and reverse rotating motor rotates reversely, so that the drill bit moves out of rock soil, the inserted rod is pulled out of the rock soil, and the drilling device is moved away from the sampling point.
By adopting the technical scheme, the drilling device is fixed on the surface of rock soil in advance before use, so that the drill rod can be prevented from sliding in the drilling process; before the inserted rod is inserted into rock soil, the sampling point is close to the center of the supporting ring as much as possible, so that the offset between the sampling point and a drill bit can be reduced in the process of inserting the inserted rod into the rock soil; the locking lever is screwed after the drill bit is located over the sampling point by moving the adjusting ring, so that the adjusting disc is positioned by the positioning sleeve, the adjusting ring is positioned by the adjusting disc, and the accuracy of drilling sampling is improved.
In summary, the present application includes at least one of the following benefits:
1. by adjusting the arrangement of the ring and the adjusting disc, the position of the spiral guide sleeve can be adjusted by moving the adjusting ring, so that a drill bit can be moved to a position right above a sampling point before drilling, and the accuracy of drilling sampling is further improved; when the drill bit is positioned right above the sampling point, the adjusting disc is rotated to enable the side wall of the adjusting disc to be tightly abutted against the outer side wall of the adjusting ring, and the adjusting disc is positioned through the positioning assembly, so that the adjusting disc positions the adjusting ring;
2. through the arrangement of the forward and reverse rotating motor, the forward and reverse rotating motor can drive the drill rod to rotate, so that the labor intensity of a user is reduced, and the drilling efficiency of the drilling device is improved;
3. through the setting of bracing piece and regulation pole, the vibration that positive reverse motor produced passes through the bracing piece and transmits to the regulation pole on for adjust the pole and produce resonance, thereby can cut down the vibration that acts on the drilling rod, and then promote the accuracy and the stability of drilling equipment at the probing in-process.
Drawings
FIG. 1 is a schematic view of the overall structure of the present embodiment;
FIG. 2 is a schematic structural view of the embodiment showing the plunger;
FIG. 3 is an exploded view of the embodiment embodying the first stopper;
FIG. 4 is an enlarged schematic view at A in FIG. 3;
FIG. 5 is a cross-sectional view of the present embodiment showing the pilot holes;
FIG. 6 is a schematic structural view showing a second abutment slope in the present embodiment;
fig. 7 is a schematic cross-sectional view of the spring embodied in this embodiment.
Description of reference numerals: 1. a spiral guide sleeve; 11. fixing the rod; 2. a drill stem; 21. a drill bit; 3. a support ring; 31. mounting grooves; 32. an avoidance groove; 33. positioning holes; 34. a guide groove; 35. inserting a rod; 36. mounting a ring groove; 37. a limiting ring groove; 4. adjusting the circular ring; 41. a positioning ring groove; 5. adjusting the disc; 51. mounting holes; 52. a first stopper; 521. a first abutment ramp; 53. a positioning ring; 6. a positioning assembly; 61. a positioning sleeve; 62. a second limiting block; 621. a second abutment ramp; 63. a locking lever; 64. a knob; 65. a connecting rod; 66. a guide bar; 7. a connecting sleeve; 71. a positive and negative rotation motor; 72. a holding rod; 73. a support bar; 74. a slider; 8. adjusting a rod; 81. a chute; 82. a limiting block; 83. a first mounting block; 84. a second mounting block; 85. a containing groove; 86. a buffer block; 861. an extension ring; 87. a limiting ring; 88. a spring.
Detailed Description
The present application is described in further detail below with reference to figures 1-7.
The embodiment of the application discloses drilling rig for geotechnical engineering investigation. Referring to fig. 1 and 2, the drilling apparatus for geotechnical investigation includes a screw guide sleeve 1, a drill rod 2, a support ring 3, an adjustment ring 4, an adjustment disc 5, and a positioning assembly 6 for positioning the adjustment disc 5. The cross-section has been seted up to the up end of supporting ring 3 and has been circular shape mounting groove 31, and the diameter of mounting groove 31 is greater than the external diameter of adjusting ring 4, and the external diameter of adjusting ring 4 simultaneously is greater than the internal diameter of supporting ring 3 for adjust ring 4 and can carry out the horizontal slip along the diapire of mounting groove 31. A plurality of inserting rods 35 are welded and fixed on the lower end face of the supporting ring 3, the inserting rods 35 in the embodiment are of a cylindrical structure, four inserting rods 35 are arranged, and the four inserting rods 35 are uniformly arranged along the circumferential direction of the supporting ring 3; the inserted bar 35 is arranged along the vertical direction, and the bottom end of the inserted bar 35 is condensed to form a tip end, so that a user can insert the inserted bar 35 into rock soil conveniently.
Referring to fig. 1, the spiral guide sleeve 1 is in a cylindrical straight tubular structure, the spiral guide sleeve 1 is arranged along the vertical direction, and meanwhile, the spiral guide sleeve 1 is positioned right above the adjusting ring 4; a plurality of fixing rods 11 are arranged on the outer side wall of the spiral guide sleeve 1 at intervals, the number of the fixing rods 11 in the embodiment is three, and meanwhile, the three fixing rods 11 are uniformly arranged along the circumferential direction of the spiral guide sleeve 1; the top of dead lever 11 links to each other with the lateral wall welded fastening of spiral uide bushing 1, and the bottom of dead lever 11 links to each other with the up end welded fastening of adjusting ring 4 to make spiral uide bushing 1 link into an integrated entity with adjusting ring 4. The drill rod 2 in the embodiment is a screw rod, the inner side wall of the spiral guide sleeve 1 is provided with internal threads, and the drill rod 2 is in threaded fit with the spiral guide sleeve 1; the drill bit 21 is installed at the bottom end of the drill rod 2, and the drill bit 21 can be driven to be inserted into the interior of rock soil by rotating the drill rod 2, so that the rock soil is drilled.
Referring to fig. 1 and 3, at least three avoidance grooves 32 are formed in the side wall of the mounting groove 31, three avoidance grooves 32 are formed in the embodiment, the three avoidance grooves 32 are uniformly arranged along the circumferential direction of the support ring 3, and the bottom walls of the avoidance grooves 32 are flush with the bottom wall of the mounting groove 31; the adjusting disc 5 is in a circular plate-shaped structure, the adjusting disc 5 is arranged inside the avoiding groove 32, and meanwhile, a distance exists between the rotating axis of the adjusting disc 5 and the center of the adjusting disc 5, so that the adjusting disc 5 can be abutted against the outer side wall of the adjusting ring 4 after rotating out of the avoiding groove 32; locating component 6 sets up in the top of supporting ring 3, and when the lateral wall of adjusting disk 5 offseted with the lateral wall of adjusting ring 4, fix a position adjusting disk 5 through locating component 6 to can fix a position adjusting ring 4.
Referring to fig. 3 and 4, the side wall of the adjusting disc 5 is integrally provided with a positioning ring 53, and the positioning ring 53 is a closed circular ring arranged along the circumferential direction of the adjusting disc 5; the outer side wall of the adjusting ring 4 is provided with a positioning ring groove 41 for clamping the positioning ring 53, when the adjusting disc 5 is rotated until the side wall of the adjusting disc 5 abuts against the outer side wall of the adjusting ring 4, the positioning ring 53 is clamped inside the positioning ring groove 41, so that the adjusting ring 4 can be limited to slide along the vertical direction; thereby improving the stability of the adjusting ring 4 in the positioning process.
Referring to fig. 4 and 5, a mounting hole 51 with a circular cross section is formed through the rotation axis of the adjusting disc 5, first limiting blocks 52 are fixed on the inner wall of the mounting hole 51 at intervals, the plurality of first limiting blocks 52 are arranged along the circumferential direction of the mounting hole 51, the first limiting blocks 52 are arranged at positions of the mounting hole 51 close to the bottom end, and a first abutting inclined surface 521 is formed at the top end of each first limiting block 52.
Referring to fig. 4 and 6, the positioning assembly 6 includes a positioning sleeve 61, the positioning sleeve 61 in this embodiment is a cylindrical straight tubular structure, and the positioning sleeve 61 is in sliding fit with the mounting hole 51; the bottom end of the positioning sleeve 61 is provided with second limiting blocks 62 at intervals, and the plurality of second limiting blocks 62 are arranged along the circumferential direction of the positioning sleeve 61; the bottom end of the second stopper 62 is formed with a second abutment slope 621.
Referring to fig. 4 and 5, when the positioning sleeve 61 is inserted into the mounting hole 51, the first abutting inclined surface 521 can be attached to the second abutting inclined surface 621, and the adjusting disc 5 can rotate in the direction of abutting against the adjusting ring 4 in the process that the second limiting block 62 abuts against the first limiting block 82 downwards; the supporting ring 3 is provided with a locking member for driving the first abutting inclined surface 521 to abut against the second abutting inclined surface 621, and the first abutting inclined surface 521 and the second abutting inclined surface 621 abut against each other, so that the side wall of the adjusting disc 5 abuts against the outer side wall of the adjusting ring 4.
The top end of the positioning sleeve 61 is fixedly welded with a rectangular connecting rod 65, and the positioning sleeve 61 is positioned at the position of the connecting rod 65 close to the middle part, so that the positioning sleeve 61 and the connecting rod 65 are connected into a whole. The locking member comprises a locking rod 63, the locking rod 63 in the embodiment is a screw rod, and the locking rod 63 is rotatably arranged in the positioning sleeve 61 in a penetrating way; the bottom wall of the avoiding groove 32 is provided with a positioning hole 33, the positioning hole 33 is positioned right below the mounting hole 51, and simultaneously, the bottom end of the locking rod 63 is in threaded fit with the positioning hole 33; the top end of the locking rod 63 is integrally provided with a knob 64, the lower end surface of the knob 64 abuts against the top end of the connecting rod 65, and the first abutting inclined surface 521 can be driven to abut against the second abutting inclined surface 621 by screwing the locking rod 63, so that the adjusting disc 5 is positioned; the top of support ring 3 is provided with and is used for guiding the guide that positioning sleeve 61 slided along vertical direction, slides through guide positioning sleeve 61 to promote positioning sleeve 61's stability.
The guide part comprises two guide rods 66 arranged along the vertical direction, and the two guide rods 66 are respectively positioned at two ends of the connecting rod 65; the guide rod 66 is of a cylindrical rod-shaped structure, and the top end of the guide rod 66 is welded and fixed to the lower end face of the connecting rod 65. The top end of the supporting ring 3 is provided with a guide groove 34, and the guide rod 66 is in sliding fit with the guide groove 34, so that the positioning sleeve 61 can be guided to slide along the vertical direction; and meanwhile, when the guide rod 66 is inserted into the guide groove 34, the rotation of the positioning sleeve 61 can be limited, thereby improving the stability of the adjusting disc 5.
Referring to fig. 1 and 2, a cylindrical connecting sleeve 7 is arranged right above the spiral guide sleeve 1, a forward and reverse rotation motor 71 is fixedly arranged at the top end of the connecting sleeve 7, an output shaft of the forward and reverse rotation motor 71 is in running fit with the connecting sleeve 7, and an output shaft of the forward and reverse rotation motor 71 is connected with the drill rod 2 through a coupler. Two cylindrical holding rods 72 are welded and fixed on the outer side wall of the connecting sleeve 7, and the two holding rods 72 are symmetrically arranged on two sides of the connecting sleeve 7, so that a user can conveniently hold the connecting sleeve.
Referring to fig. 1 and 7, at least three support rods 73 are connected between the support ring 3 and the connecting sleeve 7, the support rods 73 in this embodiment are cylindrical rod-shaped structures, and three support rods 73 are provided, and the three support rods 73 are uniformly arranged along the circumferential direction of the connecting sleeve 7. The outer side wall of the supporting ring 3 is provided with adjusting rods 8 with the same number as the supporting rods 73, the adjusting rods 8 are in a rectangular rod-shaped structure, and the adjusting rods 8 are arranged along the radial direction of the supporting ring 3; the top end of the adjusting rod 8 is provided with a sliding groove 81, the sliding groove 81 is arranged along the length direction of the adjusting rod 8, the sliding groove 81 is a dovetail groove, and one end of the sliding groove 81, which is far away from the supporting ring 3, is penetrated through; the top end of the support rod 73 is hinged with the outer side wall of the connecting sleeve 7, the bottom end of the support rod 73 is hinged with a sliding block 74, and the sliding block 74 is in sliding fit with the sliding groove 81; one end of the sliding groove 81 far away from the supporting ring 3 is fixedly welded with a limiting block 82, so that the sliding block 74 is limited to be separated from the sliding groove 81.
A first mounting block 83 and a second mounting block 84 are welded and fixed to the end of the adjustment lever 8. The section of the first mounting block 83 is of a rectangular structure, and the first mounting block 83 is welded and fixed at the position, close to the upper end face, of the adjusting rod 8; the cross section of the second mounting block 84 is in an L-shaped structure, and the second mounting block 84 is welded and fixed at a position close to the lower end surface of the adjusting rod 8. Support the up end of ring 3 and seted up confined installation annular 36, the confined spacing annular 37 has been seted up to the lateral wall that supports ring 3, when the pole 8 is adjusted in the installation, insert the inside of spacing annular 37 with second installation piece 84 earlier, insert installation annular 36 with first installation piece 83 afterwards, and link to each other first installation piece 83 with adjusting 8 welded fastening of pole, thereby make adjust the pole 8 and can carry out circumference along the lateral wall that supports ring 3 and slide.
Referring to fig. 2 and 7, the lower end surface of the adjusting rod 8 is spaced apart from the lower end surface of the support ring 3, so that the lower end surface of the adjusting rod 8 has a gap with the surface of the rock and soil when the drilling apparatus is in operation; the vibration generated in the operation process of the forward and reverse rotation motor 71 can be transmitted to the adjusting rod 8 through the supporting rod 73, so that the adjusting rod 8 generates resonance, the vibration acting on the drill rod 2 can be reduced, and the stability of the drilling device in the operation process can be further improved.
The lower terminal surface interval of adjusting pole 8 is seted up and is had the cross-section and be circular shape storage tank 85, and the inside slip of storage tank 85 is provided with cylindric buffer block 86, and buffer block 86's lateral wall integrated into one piece is provided with and extends ring 861, extends ring 861 and is located the position that buffer block 86 is close to the storage tank 85 tank bottom, and the lateral wall that extends ring 861 simultaneously is laminated with the inner wall of storage tank 85 mutually. A limiting ring 87 is fixedly welded on the notch of the containing groove 85, and the buffer block 86 is in sliding fit with the limiting ring 87; when the extension ring 861 abuts against the limit ring 87, the bottom end of the buffer block 86 is flush with the lower end surface of the support ring 3, and the buffer block 86 can be limited from sliding away from the accommodating groove 85.
The spring 88 is installed inside the accommodating groove 85, the spring 88 in this embodiment is a compression spring 88, and two ends of the spring 88 respectively abut against the end of the buffer block 86 and the bottom wall of the accommodating groove 85, so that the extension ring 861 can be urged to abut against the limit ring 87. When the adjusting rod 8 vibrates, the surface of the buffer block 86 and rock soil is abutted, and the spring 88 can be driven to repeatedly compress and reset, so that the vibration on the adjusting rod 8 can be reduced.
The implementation principle of the drilling device for geotechnical engineering investigation in the embodiment of the application is as follows:
when the drilling device is used, the supporting circular ring 3 is horizontally placed on the surface of rock soil, and the drill bit 21 is positioned right above a sampling point; secondly, inserting the inserting rod 35 into the rock soil, so that the stability of the drilling device in the drilling process is improved; then, after holding the holding rod 72, starting the forward and reverse rotation motor 71, and under the guidance of the spiral guide sleeve 1, sliding the drill rod 2 along the vertical direction to enable the drill bit 21 to be inserted into the rock soil, so as to drill the rock soil; meanwhile, vibration generated when the forward and reverse rotation motor 71 operates is transmitted to the adjusting rod 8 through the supporting rod 73, so that the adjusting rod 8 resonates, and the adjusting rod 8 is damped by the spring 88, thereby improving the stability of the drilling device during operation.
If the drill bit 21 and the sampling point are not on the same vertical line, the drill bit 21 is moved to the position right above the sampling point by moving the adjusting ring 4; then, the positioning ring 53 is clamped into the positioning ring groove 41 by rotating the adjusting disc 5, and the side wall of the adjusting disc 5 is abutted against the outer side wall of the adjusting ring 4, so that the adjusting ring 4 is positioned; then, the positioning sleeve 61 is inserted into the mounting hole 51, the first abutting inclined surface 521 abuts against the second abutting inclined surface 621, and the guide rod 66 is matched with the guide groove 34 to limit the rotation of the positioning sleeve 61; finally, the locking lever 63 is tightened so as to position the adjustment disc 5 and thus complete the adjustment of the position of the drill 21.
The embodiment of the application also discloses a drilling process of the drilling device for geotechnical engineering investigation. Referring to the figures, the drilling process includes the steps of:
s1: moving the drilling device to a sampling point on the surface of the rock-soil, enabling the sampling point to be positioned at a position close to the center of the supporting circular ring 3, and then inserting the inserting rod 35 into the rock-soil, so as to position the drilling device and further enable the drilling device to be more stable in the drilling process;
s2: moving the adjusting ring 4 to make the drill bit 21 move to the position right above the sampling point so as to correct the position of the drill bit 21; then, rotating the adjusting disk 5, clamping the positioning ring 53 into the positioning ring groove 41, and enabling the side wall of the adjusting disk 5 to abut against the outer side wall of the adjusting ring 4 so as to position the adjusting ring 4, thereby fixing the position of the drill bit 21; then, the positioning sleeve 61 is inserted into the mounting hole 51, and then the locking rod 63 is screwed, so that the positioning sleeve 61 moves downwards and abuts against the second abutting inclined surface 621 through the first abutting inclined surface 521, and the adjusting disc 5 is driven to abut against the adjusting ring 4;
s3: after the holding rod 72 is held, the forward and reverse rotation motor 71 is started, and the forward and reverse rotation motor 71 rotates forward to drive the drill rod 2 to move vertically and downwards, so that the drill bit 21 is inserted into rock soil, and the rock soil is drilled;
s4: after the holding rod 72 is held, the forward and reverse rotation motor 71 is started, so that the forward and reverse rotation motor 71 rotates reversely, the drill rod 2 can be driven to move vertically upwards, and the drill bit 21 moves out of rock soil; the bayonet 35 is then pulled out of the rock and the rig is removed from the sampling site.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides a drilling equipment for geotechnical engineering investigation, includes spiral uide bushing (1) and drilling rod (2), drill bit (21) that are used for carrying out the probing to the ground are installed to the bottom of drilling rod (2), spiral uide bushing (1) with drilling rod (2) screw-thread fit, its characterized in that: be provided with under spiral uide bushing (1) and support ring (3), mounting groove (31) have been seted up to the up end of supporting ring (3), the inside of mounting groove (31) is slided along the horizontal direction and is provided with regulation ring (4), the external diameter of adjusting ring (4) is greater than the internal diameter of supporting ring (3), it is fixed continuous with spiral uide bushing (1) to adjust ring (4), the lateral wall of mounting groove (31) has evenly seted up at least three groove (32) of dodging along the circumference of supporting ring (3), the inside rotation of dodging groove (32) is provided with regulation disc (5), there is the interval in the center and the rotation axle center of regulation disc (5), the top of supporting ring (3) is provided with and is used for carrying out locating component (6) of fixing a position to regulation disc (5).
2. The drilling apparatus for geotechnical engineering investigation of claim 1, wherein: the rotation axle center of adjusting disc (5) runs through there is mounting hole (51), the inner wall of mounting hole (51) is provided with first stopper (52) along its circumference interval, the top of first stopper (52) is formed with first butt inclined plane (521), locating component (6) are including locating sleeve (61), locating sleeve (61) with mounting hole (51) sliding fit, the bottom interval of locating sleeve (61) is provided with second stopper (62), the bottom of second stopper (62) is formed with second butt inclined plane (621) that are used for ordering about adjusting disc (5) to tightly adjust ring (4), be provided with the retaining member that is used for ordering about first butt inclined plane (521) to tightly second butt inclined plane (621) on support ring (3).
3. The drilling apparatus for geotechnical engineering investigation of claim 2, wherein: the fixed connecting rod (65) that is provided with in top of position sleeve (61), the retaining member includes check lock lever (63), check lock lever (63) rotate the inside of wearing to locate position sleeve (61), connecting rod (65) are worn out on the top of check lock lever (63), the top of check lock lever (63) is provided with knob (64), the lower terminal surface of knob (64) offsets with the up end of connecting rod (65), keep away the diapire of groove (32) and seted up locating hole (33), locating hole (33) and check lock lever (63) screw-thread fit, support ring (3) are provided with and are used for guiding the guide that position sleeve (61) slided along vertical direction.
4. A boring device for geotechnical engineering investigation according to claim 3, wherein: the guide piece comprises a guide rod (66), the guide rod (66) is fixedly connected with the connecting rod (65), a guide groove (34) is formed in the top end of the supporting ring (3), and the guide rod (66) is in sliding fit with the guide groove (34).
5. The drilling apparatus for geotechnical engineering investigation of claim 1, wherein: the week side of adjusting disc (5) is provided with holding ring (53), the lateral wall of adjusting ring (4) is offered and is used for supplying holding ring (53) card to go into holding ring groove (41).
6. The drilling apparatus for geotechnical engineering investigation of claim 1, wherein: the lower end face of the supporting circular ring (3) is provided with an insert rod (35) used for being inserted into rock soil, and the bottom end of the insert rod (35) is provided with a tip.
7. The drilling apparatus for geotechnical engineering investigation of claim 1, wherein: a connecting sleeve (7) is arranged right above the spiral guide sleeve (1), a forward and reverse rotating motor (71) used for driving the drill rod (2) to rotate is arranged at the top end of the connecting sleeve (7), and holding rods (72) are fixedly arranged on two sides of the connecting sleeve (7).
8. The drilling apparatus for geotechnical engineering investigation of claim 7, wherein: support and be provided with three piece at least bracing pieces (73) between ring (3) and connecting sleeve (7), wherein one end of bracing piece (73) links to each other with connecting sleeve (7) are articulated, it is provided with regulation pole (8) along circumference slip to support ring (3) lateral wall, adjust pole (8) along the radial setting of supporting ring (3), there is the interval lower terminal surface of adjusting pole (8) and the lower terminal surface that supports ring (3), the quantity of adjusting pole (8) is the same with bracing piece (73), the one end that connecting sleeve (7) was kept away from in bracing piece (73) articulates there is slider (74), adjust pole (8) and seted up spout (81) along its length direction, slider (74) and spout (81) sliding fit.
9. The drilling apparatus for geotechnical engineering investigation of claim 8, wherein: storage tank (85) have been seted up at the lower terminal surface interval of adjusting pole (8), the inside slip of storage tank (85) is provided with buffer block (86), the lateral wall arch of buffer block (86) is provided with extends ring (861), the lateral wall that extends ring (861) is laminated with the inner wall of storage tank (85) mutually, the notch of storage tank (85) is provided with spacing ring (87), the inside of storage tank (85) is provided with and is used for ordering about spring (88) that extends ring (861) and spacing ring (87) offset, when extending ring (861) and spacing ring (87) offset, the bottom of buffer block (86) and the lower terminal surface parallel and level that supports ring (3).
10. A drilling process comprising a drilling rig for geotechnical engineering investigations as claimed in any one of claims 1 to 9, characterized by comprising the steps of:
s1: placing the supporting circular ring (3) on the surface of rock soil, enabling the sampling point to be located at the position, close to the center, of the supporting circular ring (3), and then inserting the inserting rod (35) into the interior of the rock soil, so that the drilling device is positioned;
s2: sliding the adjusting ring (4) to enable the drill bit (21) to move to be right above the sampling point; then, rotating the adjusting disk (5) to enable the side wall of the adjusting disk (5) to be abutted against the outer side wall of the adjusting ring (4); then inserting the positioning sleeve (61) into the mounting hole (51) to enable the first abutting inclined surface (521) to abut against the second abutting inclined surface (621); finally, the locking rod (63) is screwed, and the positioning sleeve (61) is pressed tightly downwards through the knob (64);
s3: the holding rod (72) is held, the forward and reverse rotating motor (71) is started, the drill rod (2) drives the drill bit (21) to synchronously rotate, and the drill bit (21) is inserted into rock soil;
s4: the counter-rotating motor (71) rotates in reverse to move the drill bit (21) out of the rock and then to pull the plunger (35) out of the rock and remove the drilling apparatus from the sampling point.
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| CN113863869B (en) | 2024-04-02 |
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