CN111911073A - Over-and-under type drilling system - Google Patents
Over-and-under type drilling system Download PDFInfo
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- CN111911073A CN111911073A CN202010750101.6A CN202010750101A CN111911073A CN 111911073 A CN111911073 A CN 111911073A CN 202010750101 A CN202010750101 A CN 202010750101A CN 111911073 A CN111911073 A CN 111911073A
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- guide rod
- drilling
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- 238000005553 drilling Methods 0.000 title claims abstract description 68
- 238000003825 pressing Methods 0.000 claims abstract description 21
- 230000001681 protective effect Effects 0.000 claims abstract description 21
- 238000007599 discharging Methods 0.000 claims abstract description 6
- 239000002893 slag Substances 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 23
- 238000005520 cutting process Methods 0.000 claims description 17
- 239000000428 dust Substances 0.000 claims description 16
- 230000003028 elevating effect Effects 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 6
- 239000002689 soil Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000013049 sediment Substances 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910000760 Hardened steel Inorganic materials 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
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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
- E21B12/00—Accessories for drilling tools
- E21B12/06—Mechanical cleaning devices
-
- 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
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a lifting type drilling system which comprises a rack, a guide rod, a driving drilling part and a drill cylinder, wherein the guide rod is arranged on the rack; the drill bit comprises a rack, a drill bit and a drill bit, wherein the rack comprises a disc-shaped supporting platform, a plurality of supporting legs and a chip removal cover with a horn-shaped structure, a guide rod is annularly arranged by taking the circle center of the supporting platform as a center, the bottom end of the guide rod is fixedly connected to the supporting legs, and the top end of the guide rod penetrates through the drive drilling component so that the drive drilling component can slide up and down by taking the guide rod as a guide; the driving drilling part sequentially comprises a motor, a pressing plate and a driving cylinder from top to bottom, the motor is arranged in a protective cover fixed on the upper surface of the pressing plate, the top of the protective cover is open, a section of slag discharging pipeline extends from the side part of the protective cover, and the slag discharging pipeline extends out of the protective cover; the motor is fixedly connected with the inner wall of the protective cover, one side of the motor is fixedly connected with a vertically arranged rack, and the rack is meshed with a driving gear arranged in the protective cover. The invention can drill the filling hole for one-time forming, and has stable and reliable size.
Description
Technical Field
The invention relates to drilling equipment for highway engineering, in particular to a lifting type drilling system.
Background
In highway engineering, in some times, when the non-lithosphere rural soil road is built, a plurality of filling holes can be drilled in a compacted soil layer structure on the soil engineering road surface during the building, the filling holes mainly comprise a concentric annular cavity and a blind hole positioned at the circle center of the cavity, and after concrete is injected into the annular cavity and the blind hole or broken stones and the concrete are respectively injected into the annular cavity and the blind hole, the strength of a blank road surface can be improved. At present, for the filling hole, a drill cylinder is mainly used for drilling to a preset depth, and then a drill rod is used for drilling to the preset depth from the center of an annular cavity, so that the operation is troublesome, the concentricity of the drill cylinder and the annular cavity is inconsistent, or after batch drilling, the concentricity fluctuation of all the filling holes is large, the strength allocation of concrete is difficult to uniformly realize under different concentricity errors and depth differences, and great adverse effects are generated on construction.
Disclosure of Invention
The invention aims to solve the problems that the prior art is difficult and complicated to process filling holes, and the size consistency is poor due to difficulty in controlling the concentricity and the depth of an annular cavity and a blind hole of the annular cavity, and is more suitable for drilling of hard structures.
In order to achieve the purpose, the invention adopts the following technical scheme:
a lifting type drilling system comprises a frame, a guide rod, a driving drilling part and a drilling barrel;
the supporting legs are fixedly connected to the supporting platform above the supporting legs, and all the supporting legs are in a circular array by taking the center of the supporting platform as a circle center so as to suspend and support the supporting platform above the ground; the chip removal cover is coaxially arranged right below the supporting platform, the large port of the chip removal cover faces upwards, and the curling part of the large port which is curled outwards is penetrated by the supporting leg and is in sliding fit with the supporting leg at the penetrating part;
the guide rod is annularly arranged by taking the circle center of the supporting table as a center, the bottom end of the guide rod is fixedly connected to the supporting leg, and the top end of the guide rod penetrates through the driving drilling component so that the driving drilling component can slide up and down by taking the guide rod as a guide;
the driving drilling part sequentially comprises a motor, a pressing plate and a driving cylinder from top to bottom, the motor is arranged in a protective cover fixed on the upper surface of the pressing plate, the top of the protective cover is open, a section of slag discharging pipeline extends from the side part of the protective cover, and the slag discharging pipeline extends out of the protective cover; the motor is fixedly connected with the inner wall of the protective cover, one side of the motor is fixedly connected with a vertically arranged rack, and the rack is meshed with a driving gear arranged in the protective cover; the driving cylinder comprises a driving cylinder and a telescopic cylinder which are coaxially connected from top to bottom, the upper end of the driving cylinder is fixedly connected to the lower surface of the pressing plate, a spiral rib is machined on the outer wall of the driving cylinder along the axial direction of the driving cylinder, the telescopic cylinder comprises a socket cylinder and a sliding cylinder which are coaxially arranged, the sliding cylinder is inserted into the socket cylinder from the end surface of the free end of the socket cylinder and is vertically matched in a sliding manner, one end of a pressure-bearing spring is fixedly connected to the bottom of an annular insertion cavity for the sliding cylinder to be inserted into in the wall of the socket cylinder, the other end of the pressure-bearing spring is connected with one end of the sliding cylinder inserted into the socket cylinder, and the other end of the pressure-bearing spring is not completely; a main shaft of the motor downwards penetrates through a dust removal cover covered on the pressing plate in a dynamic seal matching mode and then is fixedly connected with a drill rod, and the drill rod can rotatably penetrate through the pressing plate and then is coaxially arranged in the transmission cylinder;
the upper part of the outer wall of the drill cylinder is provided with an annular flange plate extending out in the radial direction, the lower part of the outer wall of the drill cylinder is embedded with a spiral cutting edge along the axial direction, the hole wall of an inner hole of the drill cylinder is provided with a spiral groove matched with the convex edge, and when the convex edge is inserted into the spiral groove, the transmission cylinder vertically moves up and down to enable the drill cylinder to rotate forwards and backwards;
the guide rod penetrates through the pressure plate in a sliding fit manner so that the driving drilling part can slide up and down by taking the guide rod as a guide; the bearing table is coaxially sleeved on a section of the drill barrel between the flange plate and the cutting edge, which is reduced into a neck part, and a plurality of circles of balls are coaxially arranged between the flange plate and the bearing table, so that the drill barrel can freely rotate on the bearing table;
the drill cylinder coaxially extends into the chip removal cover, so that the drill cuttings can be gradually discharged outwards along the chip removal cover when the drill cylinder works; when the drill cylinder is erected under a non-working state, the bottom end surface of the drill cylinder is not higher than the bottom end surfaces of the supporting legs, and the difference between the elasticity of the supporting legs and the elasticity of the pressure-bearing spring is required to enable the drill rod to still have downward drilling amount when the supporting legs are not compressible under the rated pressure of the pressure plate.
Compared with the prior art, the invention has the following beneficial effects: the invention mainly realizes double drilling actions after the whole drilling system is stably installed by the support leg with elastic force and the spiral matching between the transmission cylinder and the drilling cylinder, the drilling cylinder rotates and moves downwards to drill a circular annular cavity, meanwhile, the drilling rod drills to a preset blind hole depth and realizes gathering smoke and dust under the action of the telescopic cylinder to be intensively discharged, a plurality of actions are simultaneously executed in a linkage way by the driving of the pressing plate, the structure is ingenious and compact, the spiral matching driving is completely enough for the internal structure of an engineering road surface with general hardness, compared with the driving of additionally adopting a motor and the like, the volume is small and exquisite, the invention is suitable for being held by a worker or being matched with two persons for use, the manufacture and the maintenance are easy, the concentricity of the drilled annular cavity and the blind hole is stably and reliably ensured, the control of the depths of the annular cavity and the blind hole is ideal, the requirement of annular cavity and blind hole molding by one-time drilling is better realized, the concentricity and the depth of the two are kept consistent, even if the problems of concentricity and height difference occur in midway construction, the overall construction size error is consistent even if the same drilling system is constructed, and the overall construction size error is consistent even if an error exists, so that the problems can be uniformly solved by a constructor through measures of adjusting the concrete strength and the like, and the method is efficient and reliable. In addition, the drilling system can realize the actions of all executing parts through one power input of the driving gear, reduces the control of an input end for a transmission chain, and can realize the master control design of one switch.
Of course, the invention can also be applied to other construction of filling holes of the type needing to drill annular cavities and blind holes, and is not limited to the construction of highway engineering pavements described by the invention.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic structural diagram of one embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of the telescopic cylinder;
fig. 3 is a partial structural schematic diagram of the drilling system during drilling of the drill rod.
Figure 4 is a cross-sectional view of the mounting arrangement between the drill pipe and the dust hood.
The device comprises a pressure plate 1, a guide rod 2, a dust hood 3, a motor 4, a drill rod 5, a transmission cylinder 6, a flange plate 7, a support table 8, a cutting edge 9, a support leg 10, a chip removal hood 11, a drill cylinder 12, a telescopic cylinder 13, a sliding insertion cylinder 1301, a socket cylinder 1302, a pressure bearing spring 1303, a ball 14, a sliding column 15, a heavy spring 16, a seat tube 17, a hardened steel ball 18, a protective cover 19, a rack 20, a driving gear 21 and a sensor 22.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the functions of the invention clearer and easier to understand, the invention is further explained by combining the drawings and the detailed implementation mode:
as one embodiment of the present invention, this embodiment discloses an elevating drilling system, which mainly includes a frame, a guide rod 2, a driving drilling component, and a drill barrel 12, referring to fig. 1. The frame, its chip removal cover 11 that includes discoid supporting station, a plurality of supporting legs 10 and a loudspeaker column structure, the L type can be made to supporting legs 10, invert and stand for stand on subaerial and can concertina movement under the pressure of vertical direction, the preferred screw column structure in bottom of supporting legs 10, so that insert ground well in order to settle supporting legs 10, the equal rigid coupling in the aforementioned supporting station of supporting legs 10 top in its top, all supporting legs 10 use the center of supporting station to be circular array in order to support the supporting station suspended support in the ground top as the centre of a circle, supporting legs 10 and supporting station form the major structure of frame. The chip removal cover 11 of this embodiment is installed under the supporting bench coaxially, and the hem portion that 11 big ports of chip removal cover up and big port outside turn-ups is by supporting legs 10 runs through and with supporting legs 10 in the department of running through sliding fit to after covering 11 covers on supporting legs 10 with the chip removal cover, make chip removal cover 11 install automatically in the central point of the centre of a circle region that all supporting legs 10 enclose because sliding fit, be located the supporting bench central authorities promptly under. The guide rod 2 is annularly provided with a circle by taking the circle center of the supporting platform as a center, the bottom end of the guide rod 2 is fixedly connected to the supporting foot 10, and the top end of the guide rod passes through the driving drilling component so that the driving drilling component can slide up and down by taking the guide rod 2 as a guide.
The drive drilling part of this embodiment can move straight up and down, and it includes motor 4, clamp plate 1, a driving drum from top to bottom in proper order, and this motor 4 is installed in fixing the protection casing 19 of 1 upper surface of clamp plate, and this protection casing 19 top is opened and the lateral part extends has one section row's sediment pipeline, and this row's sediment pipeline stretches out protection casing 19 to be used for arranging sediment, arrange the soil bits, can be connected with pump suction device during specific preparation, pump suction device and row's sediment pipeline's exit linkage, in order to the dust suction that produces drilling rod 5. This motor 4 and 19 inner wall rigid couplings of protection casing, motor 4 wherein one side rigid coupling has the rack 20 of vertical setting, this rack 20 with install the driving gear 21 meshing in protection casing 19, driving gear 21 is connected with outside drive arrangement transmission, this drive arrangement can be components such as another motor certainly, all move down with this motor 4 of drive and protection casing 19, a plurality of executive component of input obtain the output simultaneously, the efficiency of execution is higher, total control design is comparatively brief, and maneuverability is strong. The driving cylinder comprises a driving cylinder 6 and a telescopic cylinder 13 which are coaxially connected from top to bottom, the upper end of the driving cylinder 6 is fixedly connected to the lower surface of the pressing plate 1 so as to move synchronously with the driving cylinder, in particular, a spiral rib is processed on the outer wall of the driving cylinder 6 along the axial direction of the driving cylinder, as shown in fig. 2, the telescopic cylinder 13 comprises a socket cylinder 1302 and a sliding cylinder 1301 which are coaxially arranged, the sliding cylinder 1301 is inserted into the socket cylinder 1302 from the end surface of the free end of the socket cylinder 1302 and is vertically matched in a sliding manner, the bottom of an annular insertion cavity for the sliding cylinder 1301 to insert into is fixedly connected with one end of a pressure-bearing spring 1303, the other end of the pressure-bearing spring 1303 is connected with one end of the sliding cylinder 1301 inserted into the socket cylinder 1302, and the pressure-bearing spring does not completely slide out of the annular insertion cavity all the time. As shown in fig. 4, a main shaft of the motor 4 passes through the dust hood 3 covered on the pressure plate 1 downwards in a dynamic seal fit manner and then is fixedly connected with a drill rod 5, specifically, a seal ring can be arranged between the main shaft and the dust hood 3 or a graphite bearing can be directly installed on the main shaft. The drill rod 5 is rotatably arranged coaxially in the driving cylinder 6 after passing through the pressing plate 1 so as to be freely rotatable in the driving cylinder 6 for drilling downwards.
The upper part of the outer wall of the drill barrel 12 is provided with an annular flange plate 7 extending out in the radial direction, the lower part of the outer wall of the drill barrel is embedded with a spiral cutting edge 9 along the axial direction, the hole wall of an inner hole of the drill barrel 12 is provided with a spiral groove matched with the convex edge, when the convex edge is inserted into the spiral groove, the transmission barrel 6 vertically moves up and down to enable the drill barrel 12 to rotate positively and negatively, the structure of the drill barrel is similar to a screw rod mechanism, but the structural strength is higher, and the transmitted torque is larger, namely, the transmission barrel 6 similar to a screw rod axially moves, and the drill barrel 12 matched with the transmission barrel is. The convex ribs and the spiral grooves can be made into structures with matched isosceles trapezoid cross sections, and the spiral angle of the spiral path arranged on the structures is selected according to the requirement of the driving rotating speed.
The guide rod of the embodiment penetrates through the pressure plate 1 in a sliding fit manner so that the drilling driving component can slide up and down by taking the guide rod 2 as a guide; the bearing table is coaxially sleeved on a section of the drill barrel 12 which is reduced to be a neck part between the flange plate 7 and the cutting edge 9, and a plurality of circles of balls 14 are coaxially arranged between the flange plate 7 and the bearing table, so that the drill barrel 12 can freely rotate on the bearing table more smoothly. In order to facilitate the removal of debris such as soil drilled by the drill barrel 12, the drill barrel 12 extends coaxially into the chip ejection housing 11 so that the drill cuttings produced by the drill barrel 12 during operation are gradually removed from the chip ejection housing 11. It should be noted that, when the drilling cylinder 12 is erected under the non-working condition, the bottom end surface of the drilling cylinder 12 is not higher than the bottom end surface of the supporting foot 10, that is, after the drilling system is installed, the bottom end of the drilling cylinder 12 must not contact with the ground to be drilled, but must be in a certain suspension state, otherwise, the stability of the normal installation of the drilling system is affected. Meanwhile, under the rated pressure of the pressure plate 1, the difference between the elastic force of the supporting foot 10 and the elastic force of the bearing spring 1303 must make the drill rod 5 still have the downward drilling amount when the supporting foot 10 is not compressible, that is: when the pressure plate 1 is pressed down by the rated pressure, the supporting foot 10 can not be compressed any more finally, but the telescopic cylinder 13 still has the compression amount capable of being compressed further, namely, the bearing spring 1303 does not reach the limit of compression under the rated pressure, and then when the rated pressure is continuously applied, the telescopic cylinder 13 moves down further to contract, so that the drill rod 5 in the telescopic cylinder further drills down to the preset depth. On the other hand, a sensor 22 is provided on the outer surface of the dust hood 3 for detecting the vertical distance between the motor 4 and the dust hood 3, so as to set the drill rod 5 to start drilling or stop drilling when the motor 4 moves down.
When the drilling device is used, the whole drilling system is firstly installed on the ground to be drilled through the supporting feet 10, then the driving gear 21 is driven through corresponding driving equipment, and the transmission can be adaptively designed by a person skilled in the art, and the embodiment is not specifically exemplified. The driving gear 21 drives the motor 4, the protective cover 19 and the pressing plate 1 connected with the protective cover to move downwards, the supporting leg 10 starts to be compressed and shortened in the downward moving process, meanwhile, the drilling barrel 12 also rotates and gradually moves downwards, then the ground is drilled, and meanwhile, the drill rod 5 also moves downwards in a straight line. In the downward movement and drilling processes of the drill barrel 12, drill cuttings are discharged upwards through the cutting edge 9 and then sequentially connected and rotated out through the chip removal cover 11, and the chip removal cover 11 is in a special horn shape, so that the continuously accumulated drill cuttings can be gradually pushed out outwards along the horn-shaped arc surface, the drill cuttings can be discharged in time, and the problem of blockage is solved. The pressing plate 1 is further pressed downwards, the supporting foot 10 is compressed to the limit and is not compressible, the telescopic cylinder 13 at the bottom end of the drill cylinder 12 is in contact with the ground and is compressed, meanwhile, the drill rod 5 starts to drill or a section of drilling is performed as shown in fig. 3, at the moment, due to the adaptive expansion of the telescopic cylinder 13, the drill cutting smoke dust of the drill rod 5 is always located in the transmission cylinder 6 and cannot float to other parts, the effects of collecting smoke and dust are achieved, the drill rod 5 finally drills to the preset depth, then the rated pressure is relieved, under the elastic restoring force of the supporting foot 10 and the pressure-bearing spring 1303, the drill cylinder 12 and the drill rod 5 retract upwards and reset, and the drilling is finished. Therefore, the drilling device in the embodiment has a simple and compact structure, all parts are tightly connected in action, holes can be drilled quickly and stably, the drilling force is large when the motor 4 drills down due to the meshing drive of the driving gear 21, the drilling efficiency is high, and soil layers with hardness being slightly hard can be drilled.
In particular, as a specific implementation detail, the guide rod 2 of the present embodiment includes an L-shaped portion, and a vertical section of the L-shaped portion is in penetrating sliding fit with the pressure plate 1, that is, directly serves as a guide portion; a seat tube 17 with an upward opening is fixedly connected to the horizontal section of the pressing plate, a heavy spring 16 is vertically arranged in the seat tube 17, the free end of the top of the heavy spring 16 is connected with a sliding column 15 which is slidably arranged in the seat tube 17, and the top of the sliding column 15 extends out of the seat tube 17 to be connected with the pressing plate 1. When the pressing plate 1 of the driving gear 21 moves downwards, on one hand, the heavy spring 16 has a certain pushing effect on the pressing plate 1 due to extrusion, so that auxiliary elastic pressure application on the supporting leg 10 can be realized, instant impact applied by rated pressure is reduced, the installation stability of the supporting leg 10 on the ground is ensured, and meanwhile, the elasticity of the supporting leg 10 is assisted to be enhanced. In addition, the pressure is directly applied to the drill barrel 12 through the spiral transmission fit between the transmission barrel 6 and the drill barrel 12, and is transmitted to the supporting foot 10 through the guide rod through the heavy spring 16, and the downward movement of the drill barrel 12 connected with the supporting foot 10 is driven by the downward movement of the supporting foot 10, so that the friction of the contact end surface between the supporting platform and the neck of the drill barrel 12 is reduced by a part, and a plurality of circles of hardened steel balls 18 are coaxially arranged between the supporting platform and the end surface of the neck-reduced section of the drill barrel 12, so as to realize the rolling friction. In view of this, another particularly important effect of the above structure: due to the arrangement of the heavy spring 16, the transmission mode of the downward axial pushing force on the drill barrel 12 is changed, namely, the transmission mode of transmitting both torque and axial pressure only by means of the spiral fit between the transmission barrel and the drill barrel 12 is changed, so that the spiral fit only bears part of the downward moving pushing force, the service life of the rotation driving force and the spiral fit of the drill barrel 12 is prolonged to a certain extent, the downward moving axial pushing force on the drill barrel 12 is changed into two paths for transmission, the spiral transmission fit is protected, the service life of the core transmission part can be prolonged, and the hardness of a drilling object can be further improved.
In the above embodiment, the supporting leg 10 penetrates through the slope surface of the chip removal cover 11 descending towards the outside, so as to reduce the blocking effect of the supporting leg 10 on the drill cuttings as much as possible, and thus the chip removal is smoother. Meanwhile, the inner hole of the socket cylinder 1302 is a conical hole with a downward big end, and the small end of the conical hole is coaxially connected with the inner hole of the transmission cylinder 6, so as to efficiently collect smoke and dust.
In addition, the present embodiment further comprises a pumping device connected to the scum pipe outlet to suck out dust generated by the drill pipe 5 and more automatically remove cuttings.
Finally, the above embodiments are merely illustrative and not restrictive, and it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is to be covered by the claims.
Claims (5)
1. An over-and-under type drilling system which characterized in that: comprises a frame, a guide rod, a drive drilling part and a drill cylinder;
the supporting legs are fixedly connected to the supporting platform above the supporting legs, and all the supporting legs are in a circular array by taking the center of the supporting platform as a circle center so as to suspend and support the supporting platform above the ground; the chip removal cover is coaxially arranged right below the supporting platform, the large port of the chip removal cover faces upwards, and the curling part of the large port which is curled outwards is penetrated by the supporting leg and is in sliding fit with the supporting leg at the penetrating part;
the guide rod is annularly arranged by taking the circle center of the supporting table as a center, the bottom end of the guide rod is fixedly connected to the supporting leg, and the top end of the guide rod penetrates through the driving drilling component so that the driving drilling component can slide up and down by taking the guide rod as a guide;
the driving drilling part sequentially comprises a motor, a pressing plate and a driving cylinder from top to bottom, the motor is arranged in a protective cover fixed on the upper surface of the pressing plate, the top of the protective cover is open, a section of slag discharging pipeline extends from the side part of the protective cover, and the slag discharging pipeline extends out of the protective cover; the motor is fixedly connected with the inner wall of the protective cover, one side of the motor is fixedly connected with a vertically arranged rack, and the rack is meshed with a driving gear arranged in the protective cover; the driving cylinder comprises a driving cylinder and a telescopic cylinder which are coaxially connected from top to bottom, the upper end of the driving cylinder is fixedly connected to the lower surface of the pressing plate, a spiral rib is machined on the outer wall of the driving cylinder along the axial direction of the driving cylinder, the telescopic cylinder comprises a socket cylinder and a sliding cylinder which are coaxially arranged, the sliding cylinder is inserted into the socket cylinder from the end surface of the free end of the socket cylinder and is vertically matched in a sliding manner, one end of a pressure-bearing spring is fixedly connected to the bottom of an annular insertion cavity for the sliding cylinder to be inserted into in the wall of the socket cylinder, the other end of the pressure-bearing spring is connected with one end of the sliding cylinder inserted into the socket cylinder, and the other end of the pressure-bearing spring is not completely; a main shaft of the motor downwards penetrates through a dust removal cover covered on the pressing plate in a dynamic seal matching mode and then is fixedly connected with a drill rod, and the drill rod can rotatably penetrate through the pressing plate and then is coaxially arranged in the transmission cylinder;
the upper part of the outer wall of the drill cylinder is provided with an annular flange plate extending out in the radial direction, the lower part of the outer wall of the drill cylinder is embedded with a spiral cutting edge along the axial direction, the hole wall of an inner hole of the drill cylinder is provided with a spiral groove matched with the convex edge, and when the convex edge is inserted into the spiral groove, the transmission cylinder vertically moves up and down to enable the drill cylinder to rotate forwards and backwards;
the guide rod penetrates through the pressure plate in a sliding fit manner so that the driving drilling part can slide up and down by taking the guide rod as a guide; the bearing table is coaxially sleeved on a section of the drill barrel between the flange plate and the cutting edge, which is reduced into a neck part, and a plurality of circles of balls are coaxially arranged between the flange plate and the bearing table, so that the drill barrel can freely rotate on the bearing table;
the drill cylinder coaxially extends into the chip removal cover, so that the drill cuttings can be gradually discharged outwards along the chip removal cover when the drill cylinder works; when the drill cylinder is erected under a non-working state, the bottom end surface of the drill cylinder is not higher than the bottom end surfaces of the supporting legs, and the difference between the elasticity of the supporting legs and the elasticity of the pressure-bearing spring is required to enable the drill rod to still have downward drilling amount when the supporting legs are not compressible under the rated pressure of the pressure plate.
2. The elevating drilling system of claim 1, wherein: the bottom ends of the supporting legs are of screw-shaped structures.
3. The elevating drilling system of claim 1, wherein: the supporting legs penetrate through the slope surface of the chip removal cover descending towards the outer side.
4. The elevating drilling system of claim 1, wherein: the inner hole of the socket cylinder is a conical hole with a downward big end, and the small end of the conical hole is coaxially connected with the inner hole of the transmission cylinder.
5. The elevating drilling system of claim 1, wherein: the outer surface of the dust hood is provided with a sensor for detecting the vertical distance between the motor and the dust hood.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010750101.6A CN111911073A (en) | 2020-07-30 | 2020-07-30 | Over-and-under type drilling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010750101.6A CN111911073A (en) | 2020-07-30 | 2020-07-30 | Over-and-under type drilling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111911073A true CN111911073A (en) | 2020-11-10 |
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ID=73286750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010750101.6A Pending CN111911073A (en) | 2020-07-30 | 2020-07-30 | Over-and-under type drilling system |
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| Country | Link |
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| CN (1) | CN111911073A (en) |
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| CN114458170A (en) * | 2022-04-12 | 2022-05-10 | 石家庄创申建筑装饰工程有限公司 | Highway engineering road surface drilling system |
| CN115773068A (en) * | 2023-01-31 | 2023-03-10 | 陕西延长石油矿业有限责任公司 | Automatic rock mass drilling device and method |
| CN116659939A (en) * | 2023-07-25 | 2023-08-29 | 河南中投建设有限公司辉县市分公司 | Assembled building grouting hole quality detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116659939A (en) * | 2023-07-25 | 2023-08-29 | 河南中投建设有限公司辉县市分公司 | Assembled building grouting hole quality detection device |
| CN116659939B (en) * | 2023-07-25 | 2023-10-13 | 河南中投建设有限公司辉县市分公司 | Assembled building grouting hole quality detection device |
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