CN116537705A - Drilling device for bridge underwater pile foundation construction - Google Patents
Drilling device for bridge underwater pile foundation construction Download PDFInfo
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- CN116537705A CN116537705A CN202310815755.6A CN202310815755A CN116537705A CN 116537705 A CN116537705 A CN 116537705A CN 202310815755 A CN202310815755 A CN 202310815755A CN 116537705 A CN116537705 A CN 116537705A
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- drill bit
- drilling
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- cavity section
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- 238000005553 drilling Methods 0.000 title claims abstract description 103
- 238000010276 construction Methods 0.000 title claims abstract description 19
- 239000011435 rock Substances 0.000 claims abstract description 54
- 238000003825 pressing Methods 0.000 claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims description 29
- 230000007246 mechanism Effects 0.000 claims description 17
- 239000002893 slag Substances 0.000 claims description 14
- 238000007599 discharging Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 8
- 230000001154 acute effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000003139 buffering effect Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 241001513371 Knautia arvensis Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
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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
- E21B10/00—Drill bits
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
-
- 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
- E21B10/00—Drill bits
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
- E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
- E21B10/322—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools cutter shifted by fluid pressure
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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
- E21B10/00—Drill bits
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
- E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
-
- 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
- E21B10/00—Drill bits
- E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention belongs to the technical field of drilling devices, and discloses a drilling device for bridge underwater pile foundation construction, which is applied to rock drilling in a steel pile casing. The invention not only can drill in layers, but also can squeeze and crush hard or hard rock through the stress feedback between the rotating shaft and the drill bit when drilling the hard rock, so that the rotating shaft can press the movable pressing block and the button hob drill bit can automatically extend out through the push rod.
Description
Technical Field
The invention belongs to the technical field of drilling devices, and particularly relates to a drilling device for bridge underwater pile foundation construction.
Background
In the construction of building a river-crossing sea bridge engineering, filling and punching are needed to be carried out underwater, because the environment in the water is complex, the steel casing is needed to be erected in the water in advance before the drilling, then a drill bit is used for punching in the steel casing, and in the traditional construction method, the wall thickness of the steel casing is thinner, generally about 10mm, in order to facilitate the disassembly and assembly of the steel casing. However, when the hardness of the rock becomes large, the acting force of the drill bit on the rock is increased, so that the acting force of the rock on the inner wall of the steel casing is increased, and if the conventional drill bit is used for continuous drilling, the steel casing is easily damaged.
At present, a drilling device is used for solving the problem, and mainly comprises a rotating shaft, a drill bit, a second drill bit group and an annular drill bit mechanism, wherein the rotating shaft is rotatably arranged in the vertical direction, the drill bit is fixedly arranged at the lower end of the rotating shaft, and a plurality of first drill bits are arranged at the lower end of the drill bit; the second drill bit group comprises a limiting block, a connecting ring, a hydraulic mechanism and a plurality of second drill bits. The drilling device is matched with the annular drilling tool mechanism by arranging the drill bit, the second drilling tool group and the annular drilling tool mechanism, so that the hardness of the rock in the steel casing is small in the normal state, and the drilling of the rock in the steel casing is divided into two parts; when the hardness of rock increases, utilize second drill knife group and cyclic annular drill knife mechanism cooperation to bore the rock layering, reduced the degree of difficulty of boring, avoided simultaneously when rock hardness grow, and then increased the effort of steel casing, cause the damage of steel casing.
Although the device can solve the problem that the drilling device is easy to damage the steel casing in the process of drilling on the rock with high hardness, the device only improves the drilling strength by reducing the contact area between the drilling tool and the rock, when the drill bit meets the rock with high hardness, the effect is relatively poor, the rock is not easy to crush, the drilling difficulty is high, and the buffering performance of the drill bit in the drilling process is low.
Disclosure of Invention
Therefore, the invention aims to provide a drilling device for bridge underwater pile foundation construction, which solves the problems that the existing drilling device is not beneficial to breaking rocks with high hardness and has poor buffering property.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the drilling device comprises a rotating shaft, a drill bit, a second drill bit set and an annular drill bit mechanism, wherein the drill bit, the second drill bit set and the annular drill bit mechanism are sequentially arranged along the axial direction of the rotating shaft;
the rotating shaft is provided with a connecting end, the connecting end penetrates into the buffer cavity section of the shaft connecting seat and stretches into the transmission cavity section, a spline housing is fixedly arranged on the outer side of the connecting end, a plurality of longitudinal first splines are arranged on the outer wall of the spline housing along the circumferential direction, and each first spline is tightly embedded with one first spline groove of the transmission cavity section and can slide relatively along the axial direction; a buffer spring is arranged between the spline housing and the bottom of the buffer cavity section, and the buffer spring is sleeved on the outer side of the connecting end; the movable pressing block is arranged in the transmission cavity section, a supporting spring is arranged between the movable pressing block and the bottom of the transmission cavity section and between the movable pressing block and the connecting end respectively, a plurality of connecting cross bars are arranged on the periphery of the movable pressing block, each connecting cross bar penetrates through a movable opening respectively and is vertically connected with a push rod, the bottom end of the push rod penetrates into the drill bit in a sliding fit manner and stretches into a drill bit mounting groove formed in the bottom of the drill bit, a drill bit mounting sleeve capable of stretching out of the drill bit mounting groove is slidably mounted in the drill bit mounting groove, and a button hob drill bit is mounted in the drill bit mounting sleeve in a rolling manner;
when the drill bit drills hard rock, the rotating shaft is propped against the movable pressing block, and the push rod pushes the button hob drill bit to extend out of the drill bit to drill the hard rock through the movable pressing block.
In a possible implementation manner, the second drill bit set includes a plurality of second drill bits distributed on the circumference of the rotating shaft, one end of each second drill bit is hinged to the drill bit, the other end of each second drill bit is hinged to a pull rod, and the other end of each pull rod is hinged to a fixed sleeve fixedly sleeved on the outer side of the rotating shaft, so that when the rotating shaft and the drill bit move relative to each other, the second drill bit is contracted inwards or expanded outwards in the radial direction through the pull rod.
In a possible implementation manner, a first included angle exists between the pull rod and the second drilling tool, the first included angle is an acute angle, a second included angle is formed between the pull rod and the connecting end of the rotating shaft, and the second included angle is an obtuse angle.
In a possible implementation, the tie rod is a hydraulic cylinder.
In a possible implementation manner, the second drill bit set further comprises a limiting tool holder fixedly sleeved with the rotating shaft, wherein the limiting tool holder is positioned at the inner side of the second drill bit and provided with a containing groove for containing the second drill bit;
each storage groove divides the outer side of the limiting tool apron into a plurality of drilling tool areas, and each drilling tool area is provided with an arc drilling tool with the same rotation direction.
In a possible implementation manner, a positioning support assembly is connected between the limiting tool holder and the second drilling tool;
the positioning support assembly comprises a first connecting rod, a second connecting rod and a ball movable seat, wherein the ball movable seat is provided with a movable mounting groove, and a part of balls protruding out of the movable mounting groove are movably arranged in the movable mounting groove; the back side of the ball movable seat is hinged with the first connecting rod and the second connecting rod respectively, the first connecting rod is hinged with the top of the limiting tool apron, the second connecting rod is hinged with the upper end of the second drilling tool, and the second connecting rod is shorter than the first connecting rod and is located below the first connecting rod.
In a possible implementation manner, the first connecting rod is an elastic supporting rod.
In a possible implementation, the inner diameter of the transmission cavity section is smaller than the inner diameter of the buffer cavity section, so that a step structure for mounting the bottom end of the buffer spring is formed between the transmission cavity section and the buffer cavity section.
In a possible implementation manner, a plurality of vertical second spline grooves are formed in the circumferential inner wall of the transmission cavity section, a plurality of second splines are arranged on the circumferential side of the movable pressing block, and the second splines are tightly embedded and in sliding fit with the second spline grooves.
In a possible implementation manner, the annular drilling tool mechanism comprises a rotating disc fixedly sleeved on the outer side of the rotating shaft, an inner material passing area and an outer drilling tool area which are in a hollowed-out structure are arranged at the bottom of the rotating disc, and a plurality of third drilling tools are arranged in the outer drilling tool area along the circumferential direction;
a slag discharging disc fixedly connected with the rotating shaft is arranged above the annular drilling tool mechanism, and the slag discharging disc is provided with a plurality of slag discharging holes.
Compared with the prior art, the invention has the following beneficial effects:
the drilling device for bridge underwater pile foundation construction can drill in layers, can enable the rotating shaft to press the movable pressing block and enable the spherical tooth hob drill bit to automatically extend out through the push rod through stress feedback between the rotating shaft and the drill bit when drilling rocks with high hardness so as to squeeze and crush the rocks with high hardness, and can enable the spherical tooth hob drill bit to be automatically contained in the drill bit or incompletely extend out when drilling ordinary rocks or rocks with low hardness, so that drilling can be flexibly and more specifically carried out, drilling difficulty is reduced, and service lives of the drill bit and the drill bit are prolonged.
Moreover, can realize the one-level buffering of drill bit through the buffer spring of setting up the buffer chamber section in the axle coupling seat, two supporting springs of setting in the transmission chamber section can play the second grade cushioning effect again, more effectual protection drill bit, and two supporting springs can make movable briquetting be placed in the middle and have great effort requirement, in order to guarantee that the button hob drill bit only stretches out completely at hardness great or harder rock and extrudees the breakage to the rock, under this circumstances simultaneously, the effort that drilling equipment applyed and the reverse effect that a plurality of springs provided can provide bigger drilling force for button hob drill bit and drill bit, improved the effect of boring, further reduced the degree of difficulty of boring.
Meanwhile, the rotating shaft is in a matched structure such as a spline and a spline groove, so that the shaft connecting seat and the rotating shaft can relatively move in the axial direction, the shaft connecting seat and the rotating shaft can be effectively and reliably limited to relatively rotate in the circumferential direction, and the stability and the reliability of the structure are improved.
In addition, can make the second drill bit also through the atress feedback and nimble timely automatic change expansion degree, promptly when boring getting to the great rock of hardness, through can making the second drilling rod carry out the shrink of certain degree, make its area of contact with rock reduce and increase the drilling power, and can automatic re-setting and expand when being less to ordinary rock or resistance, make its area of foundation with the rock bigger and improve and bore the area to through buffer spring and supporting spring can nimble and timely adjustment, improved the practicality greatly.
In addition, still set up location supporting component, can be to different operating modes through location supporting component in the contact and location or the holding position of protecting a section of thick bamboo to steel, structural design is reasonable and practical.
Drawings
FIG. 1 is a front view of an embodiment of the present application;
FIG. 2 is a cross-sectional view of an embodiment of the present application;
FIG. 3 is an enlarged partial schematic view of the internal structure of the shaft connecting seat of FIG. 2;
FIG. 4 is an exploded schematic view of a connection structure of a shaft connection base and a spline housing according to an embodiment of the present application, the drawing showing only a portion of the shaft connection base;
FIG. 5 is an enlarged partial schematic view of the mounting structure of the hob bit of FIG. 2 on the bit;
fig. 6 is a schematic structural view of a rotating disc according to an embodiment of the present application.
In the figure: 1-a drill bit; 11-a first drill; 12-a drill mounting groove; 13-a button hob drill bit; 14-a drill bit mounting sleeve; 2-a second drill bit set; 21-a second drill; 22-limiting a tool apron; 23-arc-shaped drilling tool; 24-a receiving groove; 25-hydraulic cylinders; 26-pushing rod; 27-a shaft connection base; 28-a buffer chamber section; 29-a transmission chamber section; 210-spline housing; 211-a first spline groove; 212-a buffer spring; 213-supporting springs; 214-movable pressing blocks; 215-connecting a cross bar; 216—a first spline; 217-an activity opening; 3-positioning the support assembly; 31-a second link; 32-balls; 33-an elastic support bar; 34-a ball movable seat; 4-an annular drilling tool mechanism; 41-a third drill; 42-rotating a disc; 5-a slag discharge plate; 51-a slag discharging hole; 6-rotating shaft.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
The invention is further described with reference to the drawings and specific examples.
Referring to fig. 1-6, an embodiment of the present application provides a drilling device for bridge underwater pile foundation construction, which is applied to rock drilling inside a steel casing, and includes a rotating shaft 6, and a drill bit 1, a second drill bit set 2 and an annular drill bit mechanism 4 which are axially and sequentially arranged along the rotating shaft 6, wherein the drill bit 1 is provided with a plurality of first drill bits 11 along the circumferential direction thereof.
Layered drilling can be realized through the drill bit 1, the second drill bit set 2 and the annular drill bit mechanism 4, namely, three areas with the drilling range in place in the steel casing are respectively drilled.
In the embodiment of the present application, the backside of the drill bit 1 is provided with an axle connection seat 27 coaxial with the rotation axle 6, the axle connection seat 27 has an axle cavity, the axle cavity has a buffer cavity section 28 and a transmission cavity section 29 that distribute sequentially from top to bottom along the axial direction, the circumferential inner wall of the buffer cavity section 28 is provided with a plurality of longitudinally distributed first spline grooves 211, the transmission cavity section 29 is provided with a plurality of movable openings 217 penetrating the axle connection seat 27 along the circumferential direction, and the movable openings 217 have basic movable heights.
The rotating shaft 6 is provided with a connecting end, the connecting end penetrates into the buffer cavity section 28 of the shaft connecting seat 27 and extends into the transmission cavity section 29, a spline sleeve 210 is fixedly arranged at the outer side of the connecting end, a plurality of longitudinal first splines 216 are arranged on the outer wall of the spline sleeve 210 along the circumferential direction, and each first spline 216 is respectively tightly embedded with one first spline groove 211 of the transmission cavity section 29 and can slide relatively along the axial direction; a buffer spring 212 is arranged between the spline housing 210 and the bottom of the buffer cavity section 28, and the buffer spring 212 is sleeved outside the connecting end; a movable pressing block 214 is arranged in the transmission cavity section 29, a supporting spring 213 is arranged between the movable pressing block 214 and the connecting end and the bottom of the transmission cavity section 29 respectively, a plurality of connecting cross bars 215 are arranged on the periphery of the movable pressing block 214, each connecting cross bar 215 respectively penetrates through one movable opening 217 and is vertically connected with a push rod 26, the bottom end of the push rod 26 penetrates into the drill bit 1 in a sliding fit manner and stretches into a drill bit mounting groove 12 arranged at the bottom of the drill bit 1, a drill bit mounting sleeve 14 which can stretch out of the drill bit mounting groove 12 is arranged in the drill bit mounting groove 12 in a sliding manner, and a spherical hob drill bit 13 is arranged in the drill bit mounting sleeve 14 in a rolling manner;
when the drill bit 1 drills hard rock, the rotating shaft 6 is pressed against the movable pressing block 214, and the push rod 26 pushes the button hob drill bit 13 to extend out of the drill bit 1 through the movable pressing block 214 to drill the hard rock.
In a normal state, the hardness of the rock is small, the rock in the steel casing is mainly drilled through the drill bit 1 and the second drill bit set 2, when the hardness of the rock is increased, the buffer spring 212 and the supporting spring 213 are compressed to a certain extent, when the two springs are compressed, acting force is applied to the movable pressing block 214, the movable pressing block 214 moves downwards in the transmission cavity section 29 under the action of pressure, so that the stress feedback process when the hardness of the rock is increased is completed, the push rod 26 can be pushed by the movable pressing block 214, the drill bit mounting sleeve 14 in the push rod 26 and the drill bit 1 can be partially extended or completely extended through the drill bit mounting sleeve 14, so that the stress conversion process is completed, and when the spherical tooth hob drill bit 13 is partially extended, the spherical tooth hob drill bit can be matched with the first drill bit 11, and when the spherical tooth hob drill bit is completely extended, the rock with high hardness can be drilled, the stress feedback difficulty is reduced, and the structure has better timeliness and flexibility.
Through the technical scheme, the drilling device not only can drill in layers, but also can make the rotating shaft 6 press the movable pressing block 214 and make the button hob drill bit 13 automatically extend out to extrude and crush hard or hard rock through the push rod 26 through stress feedback between the rotating shaft 6 and the drill bit 1 when drilling hard rock, and when drilling ordinary rock or low-hardness rock, the button hob drill bit 13 is automatically contained in the drill bit 1 or does not extend out completely, so that drilling can be flexibly and pointedly carried out, drilling difficulty is reduced, and service lives of the drill bit 1 and a drill bit are prolonged.
Moreover, the first-stage buffering of the drill bit 1 can be realized through the buffer spring 212 arranged in the buffer cavity section 28 in the shaft connecting seat 27, the two support springs 213 arranged in the transmission cavity section 29 can play a role in second-stage buffering, the drill bit 1 is protected more effectively, the movable pressing block 214 can be centered by the two support springs 213 and has larger acting force requirements, so that the spherical hob drill bit 13 can be ensured to fully extend out of the rock for crushing only when the hardness is larger or harder, and meanwhile, under the condition, the acting force exerted by the drilling device and the reverse action provided by the springs can provide larger drilling force for the spherical hob drill bit 13 and the drill bit 1, the drilling effect is improved, and the drilling difficulty is further reduced.
Meanwhile, the rotating shaft 6 can relatively move in the axial direction through the matching structure of the spline and the spline groove, and the relative rotation of the shaft connecting seat 27 and the rotating shaft 6 in the circumferential direction can be effectively and reliably limited, so that the stability and the reliability of the structure are improved.
In an embodiment, the second drill bit set 2 includes a plurality of second drill bits 21 distributed on the circumference of the rotating shaft 6, one end of each second drill bit 21 is hinged to the drill bit 1, the other end of each second drill bit 21 is hinged to a pull rod, and the other end of each pull rod is hinged to a fixing sleeve fixedly sleeved on the outer side of the rotating shaft 6, so that when the rotating shaft 6 and the drill bit 1 move relative to each other, the second drill bit 21 is contracted inwards or expanded outwards in the radial direction through the pull rod.
The second drill bit 21 is hinged with the drill bit 1, and meanwhile, the second drill bit 21 and the rotating shaft 6 are hinged with each other through the pull rod, and as the rotating shaft 6 and the drill bit 1 are close to each other or far away from each other in the drilling process, the second drill bit 21 can also realize shrinkage or expansion action through stress feedback through the pull rod, namely, the contact area with rock is reduced through shrinkage so as to improve drilling force, influence or damage to a steel casing is reduced, the contact area with common rock is improved through expansion, and drilling range and drilling quantity are enlarged.
Further, in order to reduce the contact area with the rock when the hardness of the rock increases, a first included angle is formed between the pull rod and the second drill 21, the first included angle is an acute angle, a second included angle is formed between the pull rod and the connecting end of the rotating shaft 6, and the second included angle is an obtuse angle. In this way, the second drill 21 connected by the structure can also flexibly and timely automatically change the unfolding degree through stress feedback, namely, when drilling the rock with larger hardness, the second drill rod can be contracted to a certain extent, so that the contact area between the second drill rod and the rock is reduced, the drilling force is increased, the influence on the steel casing is reduced, the second drill rod can be automatically reset and unfolded when the common rock or the resistance is smaller, the basic area between the second drill rod and the rock is larger, the drilling area is increased, and the second drill rod can be flexibly and timely adjusted through the buffer spring 212 and the supporting spring 213, so that the practicability is greatly improved.
Specifically, the pull rod is a hydraulic cylinder 25. The hydraulic cylinder 25 is used as a pull rod, so that the effect of the pull rod can be realized, the length of the pull rod can be adjusted, the pull rod can be conveniently used in different use scenes, and the controllability is improved.
In some embodiments, the second drill bit set 2 further includes a limiting tool holder 22 fixedly sleeved with the rotating shaft 6, where the limiting tool holder is located on the inner side of the second drill bit 21 and has a receiving slot 24 for receiving the second drill bit 21; each accommodating groove 24 divides the outer side of the limiting tool apron 22 into a plurality of drill tool areas, and each drill tool area is provided with an arc drill tool 23 with consistent rotation direction.
Thus, the accommodating groove 24 is convenient for accommodating, and also can provide larger-angle shrinkage for the second drilling tool 21 so as to be suitable for more use scenes and use requirements, and the arc-shaped drilling tool 23 can be matched with the second drilling tool 21, so that the rock area corresponding to the outer side of the drill bit 1 is better realized.
In the embodiment of the present application, a positioning support assembly 3 is connected between the limiting tool holder 22 and the second drill 21; the positioning support assembly 3 comprises a first connecting rod, a second connecting rod 31 and a ball movable seat 34, wherein the ball movable seat 34 is provided with a movable mounting groove, and a ball 32 partially protruding out of the movable mounting groove is movably arranged in the movable mounting groove; the back side of the ball movable seat 34 is hinged with the first connecting rod and the second connecting rod 31 respectively, the first connecting rod is hinged with the top of the limiting tool apron 22, the second connecting rod 31 is hinged with the upper end of the second drilling tool 21, and the second connecting rod 31 is shorter than the first connecting rod and is positioned below the first connecting rod.
In this way, the movable supporting structure is formed between the second drill bit 21 and the limiting tool holder 22 by the first connecting rod and the second connecting rod 31, so that the balls 32 on the movable ball seat 34 can face the steel casing in a larger angle range and can be contacted with the inner wall of the steel casing, and the device can play a certain positioning role or drilling path maintaining role in the steel casing, and can also play a role in avoiding damage to the steel casing caused by path deviation.
In order to enable the first link to achieve elastic support, the first link is an elastic support bar 33. The elastic supporting rod 33 is internally provided with a spring to realize elastic supporting, so that the position change of the second drilling tool 21 and the limiting tool apron 22 can be better adapted.
In other embodiments, the inner diameter of the transmission chamber section 29 may be smaller than the inner diameter of the buffer chamber section 28 to form a stepped structure between the transmission chamber section 29 and the buffer chamber section 28 for mounting the bottom end of the buffer spring 212.
In addition, a plurality of vertical second spline grooves may be provided on the circumferential inner wall of the transmission cavity section 29, and a plurality of second splines are provided on the circumferential side of the movable pressing block 214, and the second splines are tightly engaged with the second spline grooves and are in sliding fit, so as to improve the stability and reliability of the structure.
In the embodiment of the present application, the annular drilling tool mechanism 4 may include a rotating disc 42 fixedly sleeved on the outer side of the rotating shaft 6, and an inner material passing area and an outer drilling tool area with hollow structures are provided at the bottom of the rotating disc 42, and a plurality of third drilling tools 41 are provided at the outer drilling tool area along the circumferential direction; a slag discharging disc 5 fixedly connected with the rotating shaft 6 is arranged above the annular drilling tool mechanism 4, and the slag discharging disc 5 is provided with a plurality of slag discharging holes 51.
The third drill bit 41 may drill rock in the outermost region with respect to the second drill bit 21. The slag discharge holes 51 of the slag discharge tray 5 can facilitate slag discharge.
In a specific implementation process, the conventional hob bit 13 is adopted as the hob bit 13, the bit mounting sleeve 14 of the hob bit 13 is rotatably mounted and slidably mounted in the hob bit, and the hob bit 13 is mounted at 45 degrees, so that the cutting effect is better.
Finally, it should be noted that: the foregoing description is only of the preferred embodiments of the invention and is not intended to limit the scope of the invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A drilling equipment for pile foundation construction under bridge is applied to inside rock drilling of steel pile casing, including axis of rotation (6) and drill bit (1), second drill knife tackle (2) and annular drill knife mechanism (4) that set gradually along axis of rotation (6) axial, drill bit (1) are equipped with a plurality of first drills (11), its characterized in that along its circumference: the back side of the drill bit (1) is provided with an axle connecting seat (27) coaxial with the rotating axle (6), the axle connecting seat (27) is provided with an axle cavity, the axle cavity is provided with a buffer cavity section (28) and a transmission cavity section (29) which are sequentially distributed from top to bottom along the axial direction, the circumferential inner wall of the buffer cavity section (28) is provided with a plurality of first spline grooves (211) which are longitudinally distributed, the transmission cavity section (29) is provided with a plurality of movable openings (217) which penetrate through the axle connecting seat (27) along the circumferential direction, and the movable openings (217) are provided with movable heights;
the rotating shaft (6) is provided with a connecting end, the connecting end penetrates into a buffer cavity section (28) of the shaft connecting seat (27) and stretches into the transmission cavity section (29), a spline sleeve (210) is fixedly arranged on the outer side of the connecting end, a plurality of longitudinal first splines (216) are arranged on the outer wall of the spline sleeve (210) along the circumferential direction, and each first spline (216) is respectively tightly embedded with one first spline groove (211) of the transmission cavity section (29) and can slide relatively along the axial direction; a buffer spring (212) is arranged between the spline housing (210) and the bottom of the buffer cavity section (28), and the buffer spring (212) is sleeved on the outer side of the connecting end; a movable pressing block (214) is arranged in the transmission cavity section (29), supporting springs (213) are respectively arranged between the movable pressing block (214) and the bottom of the connection end and the transmission cavity section (29), a plurality of connecting cross bars (215) are arranged on the periphery of the movable pressing block (214), each connecting cross bar (215) respectively penetrates through one movable opening (217) and is vertically connected with a push rod (26), the bottom end of the push rod (26) penetrates into the drill bit (1) in a sliding fit manner and stretches into a drill bit mounting groove (12) formed in the bottom of the drill bit (1), a drill bit mounting sleeve (14) capable of stretching out of the drill bit mounting groove (12) is arranged in the drill bit mounting sleeve (14) in a sliding manner, and a spherical hob drill bit (13) is arranged in the drill bit mounting sleeve (14) in a rolling manner;
when the drill bit (1) drills hard rock, the rotating shaft (6) is pressed against the movable pressing block (214), and the push rod (26) pushes the button hob drill bit (13) to extend out of the drill bit (1) through the movable pressing block (214) so as to drill the hard rock.
2. A drilling device for bridge underwater pile foundation construction according to claim 1, wherein: the second drill bit group (2) comprises a plurality of second drill bits (21) distributed on the periphery of the rotating shaft (6), one end of each second drill bit (21) is hinged to the drill bit (1), the other end of each second drill bit (21) is hinged to a pull rod, the other end of each pull rod is hinged to a fixed sleeve fixedly sleeved on the outer side of the rotating shaft (6), and when the rotating shaft (6) and the drill bit (1) move mutually, the second drill bits (21) are enabled to shrink inwards or expand outwards in the radial direction through the pull rods.
3. A drilling device for bridge underwater pile foundation construction according to claim 2, characterized in that: a first included angle is formed between the pull rod and the second drilling tool (21), the first included angle is an acute angle, a second included angle is formed between the pull rod and the connecting end of the rotating shaft (6), and the second included angle is an obtuse angle.
4. A drilling device for bridge underwater pile foundation construction according to claim 3, wherein: the pull rod is a hydraulic cylinder (25).
5. A drilling device for use in the construction of underwater pile foundations for bridges according to any of claims 2-4, wherein: the second drilling tool group (2) further comprises a limiting tool holder (22) fixedly sleeved with the rotating shaft (6), wherein the limiting tool holder (22) is positioned at the inner side of the second drilling tool (21) and is provided with a containing groove (24) for containing the second drilling tool (21);
each storage groove (24) divides the outer side of the limiting tool apron (22) into a plurality of drilling tool areas, and each drilling tool area is provided with an arc drilling tool (23) with the same rotation direction.
6. The drilling device for bridge underwater pile foundation construction of claim 5, wherein: a positioning support assembly (3) is connected between the limiting tool apron (22) and the second drilling tool (21);
the positioning support assembly (3) comprises a first connecting rod, a second connecting rod (31) and a ball movable seat (34), wherein the ball movable seat (34) is provided with a movable mounting groove, and a ball (32) partially protruding out of the movable mounting groove is movably arranged in the movable mounting groove; the back side of the ball movable seat (34) is hinged with the first connecting rod and the second connecting rod (31) respectively, the first connecting rod is hinged with the top of the limiting tool apron (22), the second connecting rod (31) is hinged with the upper end of the second drilling tool (21), and the second connecting rod (31) is shorter than the first connecting rod and is positioned below the first connecting rod.
7. The drilling device for bridge underwater pile foundation construction of claim 6, wherein: the first connecting rod is an elastic supporting rod (33).
8. A drilling device for bridge underwater pile foundation construction according to claim 1, wherein: the inner diameter of the transmission cavity section (29) is smaller than that of the buffer cavity section (28) so as to form a step structure for mounting the bottom end of the buffer spring (212) between the transmission cavity section (29) and the buffer cavity section (28).
9. A drilling device for bridge underwater pile foundation construction according to claim 1, wherein: the circumference inner wall of transmission chamber section (29) is equipped with a plurality of vertical second spline grooves, the week side of activity briquetting (214) is equipped with a plurality of second splines, second spline and second spline groove inseparable gomphosis and sliding fit.
10. A drilling device for bridge underwater pile foundation construction according to claim 1, wherein: the annular drilling tool mechanism (4) comprises a rotating disc (42) fixedly sleeved on the outer side of the rotating shaft (6), an inner material passing area and an outer drilling tool area which are in hollow structures are arranged at the bottom of the rotating disc (42), and a plurality of third drilling tools (41) are arranged in the outer drilling tool area along the circumferential direction;
a slag discharging disc (5) fixedly connected with the rotating shaft (6) is arranged above the annular drilling tool mechanism (4), and the slag discharging disc (5) is provided with a plurality of slag discharging holes (51).
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| CN202310815755.6A CN116537705B (en) | 2023-07-05 | 2023-07-05 | Drilling device for bridge underwater pile foundation construction |
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| CN202310815755.6A CN116537705B (en) | 2023-07-05 | 2023-07-05 | Drilling device for bridge underwater pile foundation construction |
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Citations (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4304309A (en) * | 1979-02-16 | 1981-12-08 | Dome Petroleum Limited | Surface drilling apparatus |
| KR19990079154A (en) * | 1998-04-02 | 1999-11-05 | 김철응 | Rock Excavation Bit |
| RU2172386C1 (en) * | 1999-12-15 | 2001-08-20 | Гельфгат Михаил Яковлевич | Inserted roller bit |
| US20040040751A1 (en) * | 1999-02-12 | 2004-03-04 | Halco Drilling International Limited | Directional drilling apparatus |
| RU2353748C1 (en) * | 2007-11-15 | 2009-04-27 | Николай Митрофанович Панин | Bore bit |
| CN204002569U (en) * | 2014-06-04 | 2014-12-10 | 梁振西 | For the button bit of bridge foundation large diameter pile boring |
| WO2018157218A1 (en) * | 2017-02-28 | 2018-09-07 | Lyomov Shteryo Kostadinov | A continuous wedging tool for directional diamond drilling |
| CN208473710U (en) * | 2018-07-02 | 2019-02-05 | 重庆松藻矿山机械厂 | Expansive bit |
| CN109653682A (en) * | 2018-12-17 | 2019-04-19 | 九江职业技术学院 | Bore the adjustable drill bit of diameter and hole digging machine |
| CN110295850A (en) * | 2019-07-05 | 2019-10-01 | 深圳宏业基岩土科技股份有限公司 | For being engaged the fishing sand hopper reamer bit structure of pile embedding in rock |
| CN110593750A (en) * | 2019-10-31 | 2019-12-20 | 张亚婷 | Drilling machine for switching construction of rotary drilling bit and impacter |
| CN111350463A (en) * | 2018-12-20 | 2020-06-30 | 河南泉涌科技有限公司 | Drill bit suitable for stronger rock is equipped with high strength nozzle |
| CN111691820A (en) * | 2020-06-24 | 2020-09-22 | 广州力寄采矿设备有限公司 | Safe and efficient ore mining drill bit |
| CN212296233U (en) * | 2020-06-11 | 2021-01-05 | 中煤科工集团重庆研究院有限公司 | Impact cutting double-acting drill bit |
| CN113006051A (en) * | 2021-02-24 | 2021-06-22 | 曹兴明 | Bored pile construction method applicable to drilling and bottom expanding device |
| CN113389495A (en) * | 2021-07-28 | 2021-09-14 | 潍坊盛德石油机械制造有限公司 | PDC diamond bit capable of being salvaged while drilling |
| CN113389512A (en) * | 2021-06-15 | 2021-09-14 | 中国煤炭地质总局广东煤炭地质局勘查院 | Multifunctional geological exploration drilling device |
| CN113737789A (en) * | 2021-11-03 | 2021-12-03 | 成都理工大学 | Self-drilling type reinforcing system and self-drilling type reinforcing method for soft soil layer |
| CN215520780U (en) * | 2021-06-15 | 2022-01-14 | 中国煤炭地质总局广东煤炭地质局勘查院 | Drill bit for geological exploration |
| CN114109380A (en) * | 2021-11-30 | 2022-03-01 | 中国矿业大学 | Composite cutter head device suitable for hard rock crushing and use method thereof |
| CN216197866U (en) * | 2021-10-31 | 2022-04-05 | 潍坊盛鸿机械科技有限公司 | Civil engineering pile foundation drill bit that stability is high |
| CN114352203A (en) * | 2022-03-16 | 2022-04-15 | 山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队) | Deep hole comprehensive guarantee method and equipment for geological exploration |
| CN216553774U (en) * | 2021-12-21 | 2022-05-17 | 江苏和信石油机械有限公司 | Hard rock ball tooth hobbing cutter drill bit for large-diameter drilled pile |
| CN114809928A (en) * | 2022-06-28 | 2022-07-29 | 山东上辰建设集团有限公司 | Bridge foundation construction intelligence drilling equipment |
| CN115263195A (en) * | 2022-09-28 | 2022-11-01 | 陕西晖煌建筑劳务有限公司 | Bridge pile foundation drilling equipment |
| CN115596360A (en) * | 2022-12-14 | 2023-01-13 | 陕西晖煌建筑劳务有限公司（Cn） | Bridge underwater pile foundation drilling device |
| CN115653500A (en) * | 2022-12-29 | 2023-01-31 | 陕西晖煌建筑劳务有限公司 | Traffic engineering construction drilling equipment |
-
2023
- 2023-07-05 CN CN202310815755.6A patent/CN116537705B/en active Active
Patent Citations (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4304309A (en) * | 1979-02-16 | 1981-12-08 | Dome Petroleum Limited | Surface drilling apparatus |
| KR19990079154A (en) * | 1998-04-02 | 1999-11-05 | 김철응 | Rock Excavation Bit |
| US20040040751A1 (en) * | 1999-02-12 | 2004-03-04 | Halco Drilling International Limited | Directional drilling apparatus |
| RU2172386C1 (en) * | 1999-12-15 | 2001-08-20 | Гельфгат Михаил Яковлевич | Inserted roller bit |
| RU2353748C1 (en) * | 2007-11-15 | 2009-04-27 | Николай Митрофанович Панин | Bore bit |
| CN204002569U (en) * | 2014-06-04 | 2014-12-10 | 梁振西 | For the button bit of bridge foundation large diameter pile boring |
| WO2018157218A1 (en) * | 2017-02-28 | 2018-09-07 | Lyomov Shteryo Kostadinov | A continuous wedging tool for directional diamond drilling |
| CN208473710U (en) * | 2018-07-02 | 2019-02-05 | 重庆松藻矿山机械厂 | Expansive bit |
| CN109653682A (en) * | 2018-12-17 | 2019-04-19 | 九江职业技术学院 | Bore the adjustable drill bit of diameter and hole digging machine |
| CN111350463A (en) * | 2018-12-20 | 2020-06-30 | 河南泉涌科技有限公司 | Drill bit suitable for stronger rock is equipped with high strength nozzle |
| CN110295850A (en) * | 2019-07-05 | 2019-10-01 | 深圳宏业基岩土科技股份有限公司 | For being engaged the fishing sand hopper reamer bit structure of pile embedding in rock |
| CN110593750A (en) * | 2019-10-31 | 2019-12-20 | 张亚婷 | Drilling machine for switching construction of rotary drilling bit and impacter |
| CN212296233U (en) * | 2020-06-11 | 2021-01-05 | 中煤科工集团重庆研究院有限公司 | Impact cutting double-acting drill bit |
| CN111691820A (en) * | 2020-06-24 | 2020-09-22 | 广州力寄采矿设备有限公司 | Safe and efficient ore mining drill bit |
| CN113006051A (en) * | 2021-02-24 | 2021-06-22 | 曹兴明 | Bored pile construction method applicable to drilling and bottom expanding device |
| CN113389512A (en) * | 2021-06-15 | 2021-09-14 | 中国煤炭地质总局广东煤炭地质局勘查院 | Multifunctional geological exploration drilling device |
| CN215520780U (en) * | 2021-06-15 | 2022-01-14 | 中国煤炭地质总局广东煤炭地质局勘查院 | Drill bit for geological exploration |
| CN113389495A (en) * | 2021-07-28 | 2021-09-14 | 潍坊盛德石油机械制造有限公司 | PDC diamond bit capable of being salvaged while drilling |
| CN216197866U (en) * | 2021-10-31 | 2022-04-05 | 潍坊盛鸿机械科技有限公司 | Civil engineering pile foundation drill bit that stability is high |
| CN113737789A (en) * | 2021-11-03 | 2021-12-03 | 成都理工大学 | Self-drilling type reinforcing system and self-drilling type reinforcing method for soft soil layer |
| CN114109380A (en) * | 2021-11-30 | 2022-03-01 | 中国矿业大学 | Composite cutter head device suitable for hard rock crushing and use method thereof |
| CN216553774U (en) * | 2021-12-21 | 2022-05-17 | 江苏和信石油机械有限公司 | Hard rock ball tooth hobbing cutter drill bit for large-diameter drilled pile |
| CN114352203A (en) * | 2022-03-16 | 2022-04-15 | 山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队) | Deep hole comprehensive guarantee method and equipment for geological exploration |
| CN114809928A (en) * | 2022-06-28 | 2022-07-29 | 山东上辰建设集团有限公司 | Bridge foundation construction intelligence drilling equipment |
| CN115263195A (en) * | 2022-09-28 | 2022-11-01 | 陕西晖煌建筑劳务有限公司 | Bridge pile foundation drilling equipment |
| CN115596360A (en) * | 2022-12-14 | 2023-01-13 | 陕西晖煌建筑劳务有限公司（Cn） | Bridge underwater pile foundation drilling device |
| CN115653500A (en) * | 2022-12-29 | 2023-01-31 | 陕西晖煌建筑劳务有限公司 | Traffic engineering construction drilling equipment |
Non-Patent Citations (3)
| Title |
|---|
| ZHANG, B等: "Experimental study on dynamic characteristics of a monopile foundation based on local scour in combined waves and current", OCEAN ENGINEERING, vol. 266 * |
| 杨建林;杨荣斌;邹明;陈飞;: "超大直径滚刀钻头在深圳金中环大厦桩基工程中的应用", 施工技术, no. 02 * |
| 豆旭谦等: "煤矿井下硬岩定向钻进技术装备与应用", 煤矿安全, vol. 52, no. 11 * |
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