CN211171962U - Drilling pile placing device - Google Patents

Abstract

The utility model provides a drilling pile placing device, include drill bit seat, rotating motor, connect pole, sheath and pile head, rotating motor sets up on the drill bit seat, connect pole one end to connect on rotating motor's output shaft, it is provided with the down-the-hole drill bit that is used for drilling to connect the pole other end, the sheath cover is established on connecting the pole, the pile head cover is established on the sheath, connect pole, sheath, pile head all with rotating motor's output shaft coaxial line, the sheath is kept away from rotating motor one end and is still provided with and be used for reaming piece milling cutter, piece milling cutter is greater than the radius of the outer wall of pile head with the maximum distance of sheath axis. When the device is used for piling and drilling on the sand-bearing and stone-containing land, the pile head is directly placed into the drilled hole in the drilling process, so that the phenomenon that sand and broken stones return to the drilled hole after the drill bit is removed when a down-the-hole drill is used for drilling is prevented, the drilling and the pile placing are completed at one time, and a large amount of time and production cost are saved.

Description

Drilling pile placing device

Technical Field

The utility model relates to a drilling equipment technical field, concretely relates to stake device is put in drilling.

Background

With the rapid development of highway construction and the improvement of construction quality standards in China, many previous related engineering machines cannot meet the development requirements of highway modernization, for example, when crash barriers are installed on roads, airports, dams, ports and the like, some places still adopt manual operation, and some places still adopt mechanical operation, but cannot meet the requirements of high standard and high efficiency due to unreasonable design structures and other reasons.

When the existing auger and down-the-hole drill are used for drilling holes and piling on some sand-containing soil, after the drill bit is taken out after the drilling is finished, the sand-containing rock is crushed and returns to the drilled hole, so that the piling is not facilitated, the piling efficiency is low, and the cost is increased.

SUMMERY OF THE UTILITY MODEL

In view of this, the to-be-solved problem of the utility model is to provide a drilling and pile placing device, this device when taking sand to contain the ground of stone on the pile drilling, directly put into the pile head in the hole of getting at the in-process of drilling, prevent that the down-hole from boring when drilling, after getting off the drill bit, the pure stone of sand gets back to the hole of boring again, and the drilling is put the stake and is once accomplished, has still saved plenty of time and manufacturing cost.

The utility model discloses an above-mentioned technical problem is solved to following technical means: the utility model provides a drilling pile-placing device, include drill bit seat, rotating motor, connect pole, sheath and pile head, rotating motor sets up on the drill bit seat, connect pole one end to connect on rotating motor's output shaft, it is provided with the down-the-hole drill bit that is used for drilling to connect the pole other end, the sheath cover is established on connecting the pole, the pile head cover is established on the sheath, connect pole, sheath, pile head all with rotating motor's output shaft coaxial line, the sheath is kept away from rotating motor one end and is still provided with and be used for reaming piece milling cutter, piece milling cutter is greater than the radius of the outer wall of pile head with the maximum distance of sheath axis.

Furthermore, the plate milling cutter is provided with a plurality of plates, and the plurality of plate milling cutters are arranged around the outer wall of the sheath in an array mode.

Furthermore, the outer wall of the end, close to the down-the-hole drill, of the protective sleeve is provided with an ear seat, and the slice milling cutter is hinged to the ear seat through a pin shaft.

Further, the pin shaft is further sleeved with a torsion spring, stress ends of the torsion spring in two directions are respectively fixed on the lug seat and the sheet milling cutter, and the torsion spring applies pre-tightening force towards the direction of the sheath axis to the sheet milling cutter.

Furthermore, a through groove for the sheet milling cutter to pass through is formed in the position, corresponding to the sheet milling cutter, of the protective sleeve, and the sheet milling cutter can swing in the through groove around the axis of the pin shaft.

Further, still be provided with the impacter between extension rod and the down-the-hole drill bit, impacter and extension rod coaxial line, still be provided with the wedge dog that is used for the pretightning force of separation blade milling cutter to the direction of sheath axis on the periphery of impacter near down-the-hole drill bit one end, piece milling cutter is close to wedge dog one side and is provided with the inclined plane with wedge dog assorted, changes the position of wedge dog through moving the impacter to the impacter axis direction to change the contact position of piece milling cutter and slant dog and make piece milling cutter can be around the axis swing of round pin axle under the effect of pretightning force.

Further, the sheath is close to rotary motor one end, still is provided with the through-hole that is used for blowing off dust on wearing out the outer wall at pile head position, it is hollow to connect pole and impacter, blows in compressed air through connecting the pole middle part and blows off the dust of getting with boring from the through-hole.

Furthermore, one end, close to the rotary motor, of the sheath is fixed on the connecting rod through a fastening nut, an adjusting nut is further arranged on the connecting rod, and the position of the sheath in the axial direction of the connecting rod is adjusted through the adjusting nut.

Further, still the cover is equipped with fixed cover on the sheath outer wall, fixed cover passes through the bolt fastening on the sheath outer wall, the lower terminal surface butt of fixed cover is in order to stabilize the pile head on the up end of pile head, makes the pile head follow the synchronous decline of sheath.

According to the above technical scheme, the beneficial effects of the utility model are that: the utility model provides a drilling pile placing device, include drill bit seat, rotating motor, connect pole, sheath, impacter, pile head and down-the-hole drill bit, rotating motor sets up on the drill bit seat, connect pole one end to connect on rotating motor's output shaft, connect the pole other end to be connected with the one end of impacter, the other end of impacter is connected with the down-the-hole drill bit that is used for drilling, the sheath cover is established on connecting the pole, the pile head cover is established on the sheath, connect pole, sheath, impacter, pile head all with rotating motor's output shaft coaxial line, rotating motor one end is kept away from to the sheath still is provided with the piece milling cutter that is used for reaming, piece milling cutter is greater than the radius of the outer wall of pile head with the maximum distance of. When the device is used for piling and drilling on the sand-bearing and stone-containing land, the pile head is directly placed into the drilled hole in the drilling process, so that the phenomenon that sand and broken stones return to the drilled hole after the drill bit is removed when a down-the-hole drill is used for drilling is prevented, the drilling and the pile placing are finished at one time, and a large amount of time and production cost are saved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a structural diagram of the drilling pile placing device provided by the utility model during drilling;

FIG. 2 is an enlarged view of a portion of the drilling and staking device shown in FIG. 1 at location A;

fig. 3 is a schematic view of the blade milling cutter of the drilling and piling device provided by the present invention when retracted;

FIG. 4 is an enlarged partial view of the drilling and staking device of FIG. 3 in position B;

FIG. 5 is a partial view of the wedge stop of the impactor for the drilling and piling apparatus according to the present invention;

fig. 6 is a partial structural view of a mounting position of a milling cutter of a sheath of the drilling pile placing device according to the present invention;

fig. 7 is a partial structural view of the torsional spring mounting position of the drilling pile placing device provided by the present invention;

fig. 8 is a partial cross-sectional view of the drill staking device of fig. 1 at position C.

Reference numerals:

1-a bit seat; 2-a rotary motor; 3-connecting rod; 4-a sheath; 5-an impactor; 6-pile head; 7-a down-the-hole drill bit; 8-piece milling cutter; 41-ear mount; 42-pin-43-torsion spring; 44-through slots; 45-through holes; 46-a fastening nut; 47-adjusting nut; 51-wedge shaped stoppers; 61-fixing the sleeve; 21-moving the oil cylinder; 81-step.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It should be noted that the embodiments and features of the embodiments of the present invention can be combined with each other without conflict.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the present application. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.

Please refer to fig. 1 to 8, the utility model provides a pile device is put in drilling, including drill bit seat 1, rotating motor 2, connect pole 3, sheath 4 and pile head 6, rotating motor 2 sets up on drill bit seat 1, connect pole 3 one end to be connected on rotating motor 2's output shaft, connect the pole 3 other end and be provided with the down-the-hole drill bit 7 that is used for drilling, the sheath 4 cover is established on connecting pole 3, pile head 6 cover is established on sheath 4, connect pole 3, sheath 4, pile head 6 all with rotating motor 2's output shaft coaxial line, sheath 4 keeps away from rotating motor 2 one end and still is provided with the piece milling cutter 8 that is used for reaming, the maximum distance of piece milling cutter 8 and sheath 4 axis is greater than the radius of the outer wall of pile head 6. During drilling, firstly, a first step of drilling is carried out through a down-the-hole drill 7 and the impactor 5, and then hole expansion is carried out through the sheet milling cutter 8, so that the hole expanded by the sheet milling cutter 8 is slightly larger than the diameter of the outer wall of the pile head 6; after the drilling is finished, the sheet milling cutter 8 is contracted, the sheet milling cutter 8 is retracted into the inner hole of the pile head 6, then the down-the-hole drill bit 7 and the sheath 4 are taken out, the pile head 6 is left in the drilled hole, and the drilling and pile placing are finished in sequence.

As a further improvement to the above technical solution, the milling cutter 8 has a plurality of pieces, and the plurality of pieces of the milling cutter 8 are arranged around the outer wall array of the sheath 4. A plurality of blade milling cutters 8 are arranged and arranged around the outer wall of the sheath 4 in an equiangular array, so that the blade milling cutters are easier and more stable in reaming, the reaming is more uniform, and meanwhile, the abrasion of the blade milling cutters 8 is reduced. Preferably, 3 milling cutters 8 are provided, and the milling cutters 8 can be provided according to geological conditions of a drilling area, and more milling cutters 8 can be provided to facilitate reaming when the geology is harder.

As a further improvement to the technical scheme, an ear seat 41 is arranged on the outer wall of one end of the sheath 4 close to the down-the-hole drill 7, and the slice milling cutter 8 is hinged on the ear seat 41 through a pin shaft 42. The axis of the pin shaft 42 is perpendicular to the axis of the sheath 4, the blade milling cutter 8 is hinged to the lug seat 41 through the pin shaft 42, the blade milling cutter 8 can rotate around the axis of the pin shaft 42 conveniently, so that the distance between the blade milling cutter 8 and the axis of the sheath 4 is changed, the blade milling cutter 8 is contracted and expanded, the blade milling cutter 8 is expanded when drilling, the blade milling cutter 8 is abutted to the inner wall of the pile head 6 and is expanded to the position, the blade of the blade milling cutter 8 slightly exceeds the outer wall of the pile head 6 at the moment, the hole milled by the blade milling cutter 8 in the rotating process along with the sheath 4 is slightly larger than the diameter of the outer wall of the pile head 6, the pile head 6 can be inserted into the hole conveniently, when the hole is drilled to the designed depth, the blade milling cutter 8 is rotated to contract the pile head 6.

As a further improvement to the above technical solution, the pin shaft 42 is further sleeved with a torsion spring 43, the stressed ends of the torsion spring 43 in two directions are respectively fixed on the lug seat 41 and the blade milling cutter 8, and the torsion spring 43 applies a pre-tightening force to the blade milling cutter 8 in a direction toward the axis of the sheath 4. A through groove 44 for the chip milling cutter 8 to pass through is arranged at the position, corresponding to the chip milling cutter 8, of the sheath 4, and the chip milling cutter 8 can swing in the through groove 44 around the axis of the pin shaft 42. And the thickness of the through groove 44 is slightly larger than that of the slice milling cutter 8, so that the side wall of the through groove 44 can be abutted against the slice finding milling cutter 8 in the hole milling process of the slice milling cutter 8, the rigidity of the slice milling cutter 8 is increased, and the slice milling cutter 8 is prevented from being deformed and damaged. Set up torsional spring 43 and make round pin axle 42 pass the centre bore of torsional spring 43, exert a pretightning force for torsional spring 43 and fix the both ends of torsional spring 43 respectively on ear seat 41 and slice milling cutter 8 for a pretightning force towards 4 axes of sheath is given to slice milling cutter 8 by torsional spring 43, conveniently contracts slice milling cutter 8 to logical inslot 44 after drilling is accomplished, and make the maximum dimension of slice milling cutter 8 apart from 4 axes of sheath be greater than the inner wall diameter of pile head 6, be convenient for take out slice milling cutter 8.

As a further improvement of the above technical solution, an impactor 5 is further arranged between the connecting rod 3 and the down-the-hole drill 7, the impactor 5 and the connecting rod 3 are coaxial, a wedge-shaped stop 51 for resisting the pre-tightening force of the blade milling cutter 8 in the direction of the axis of the sheath 4 is further arranged on the circumferential surface of the impactor 5 near one end of the down-the-hole drill 7, an inclined surface matched with the wedge-shaped stop 51 is arranged on one surface of the blade milling cutter 8 near the wedge-shaped stop 51, and the position of the wedge-shaped stop 51 is changed by moving the impactor 5 in the direction of the axis of the impactor 5, so that the contact position of the blade milling cutter 8 and the oblique stop is changed, and the blade milling cutter 8 can swing around the. The inclined surface of the wedge-shaped stop block 51 is inclined from the lower end to the upper end of the impactor 5, namely the diameter is reduced, when the slice milling cutter 8 works, the impactor 5 is moved to a proper position and then the sheath 4 is fixed on the connecting rod 3, and at the moment, the inclined surface of the slice milling cutter 8 is tangent to the wedge-shaped stop block 51 so as to prevent the slice milling cutter 8 from contracting, so that the hole milled by the slice milling cutter 8 is larger than the diameter of the outer wall of the pile head 6; the diameter of the contact position between the milling cutter 8 and the wedge-shaped stop 51 is reduced during the downward movement of the impactor 5 after the drilling is completed, so that the milling cutter 8 is retracted into the inner wall of the pile head 6 under the action of the pretension. And finally, taking out the down-the-hole drill bit 7, the sheath 4 and the slice milling cutter 8 from the inner hole of the pile head 6, and keeping the pile head 6 in the drilled hole to complete drilling and pile placing.

As a further improvement to the technical scheme, the sheath 4 is close to one end of the rotary motor 2, a through hole 45 for blowing dust is further arranged on the outer wall of the pile head 6, the connecting rod 3 and the impactor 5 are both hollow, and the drilled dust is blown out from the through hole 45 by blowing compressed air into the middle of the connecting rod 3. The dust drilled by the air compressor is blown out from the through hole 45 by the air compressed by the high pressure air from the middle part of the extension rod 3.

As a further improvement to the above technical solution, one end of the sheath 4 close to the rotating motor 2 is fixed on the extension rod 3 through a fastening nut, a thread is provided on an outer wall of the sheath, the fastening nut is screwed on the sheath and abuts against the adjusting nut so as to fasten the sheath on the extension rod, an adjusting nut is further provided on the extension rod 3, a thread is provided on the extension rod, the adjusting nut is screwed on the extension rod, and a position of the sheath 4 in an axial direction of the extension rod 3 is adjusted through the adjusting nut. When drilling, the sheath 4 is fixed on the connecting rod 3 through the fastening nut, the sheath 4 and the connecting rod 3 synchronously rotate, the position of the sheath 4 on the connecting rod 3 is adjusted through the adjusting nut, the plate milling cutter 8 is fixed at a proper position, after drilling is completed, the fastening nut and the adjusting nut are loosened, the connecting rod 3 and the impactor 5 continue to move downwards, the plate milling cutter 8 completely contracts to the inner wall diameter of the pile head 6, then the sheath 4 is fixed on the connector, the sheath 4 is taken out together, and the pile head 6 is left in a drilled hole. Preferably, the rotary motor is slidably mounted on the drill bit seat, so that the rotary motor can move along the axis direction of the output shaft of the rotary motor, and meanwhile, a group of moving cylinders is arranged for driving the rotary motor to move, the cylinder body end of each moving cylinder is fixedly arranged on the drill bit seat, the piston end is fixedly arranged on the rotary motor, and meanwhile, the extending length of each moving cylinder is set, so that in the drilling state, the moving cylinders are in a completely retracted state, at the moment, the chip milling cutters extend in place, and at the moment, the inclined planes on the chip milling cutters 8 are tangent to the wedge-shaped stoppers 51. When drilling is completed, the movable oil cylinder extends out to enable the rotary motor to drive the impactor to move downwards, so that the slice milling cutter retracts, and when the movable oil cylinder extends out completely, the slice milling cutter retracts into the pile head completely. The movable oil cylinder is arranged, so that the movable oil cylinder can be completely extended when the slice milling cutter needs to be retracted, the moving distance of the impactor is easier to control, and the retracting operation of the slice milling cutter is simpler and more convenient.

As a further improvement to the above technical solution, the outer wall of the sheath is further sleeved with a fixing sleeve, the fixing sleeve is fixed on the outer wall of the sheath by bolts, and the lower end surface of the fixing sleeve abuts against the upper end surface of the pile head so as to stabilize the pile head, so that the pile head descends synchronously along with the sheath. During drilling, the pile head 6 is fixed to the sheath 4 by a fixing sleeve so that the pile head 6 descends into the drilled hole synchronously with the sheath 4. Preferably, a step 81 is further arranged on one surface of the sheet milling cutter close to the pile head, so that the lower end surface of the pile head abuts against the step when the sheet milling cutter is produced to clamp the main pile head and prevent the main pile head from falling off. The drilling machine comprising the drilling and pile placing device is used for drilling, the pile head 6 is directly placed in the drilled hole in the drilling process, the phenomenon that sand and broken stones return to the drilled hole after a drill bit is removed when a down-the-hole drill is used for drilling is avoided, the drilling and pile placing are finished at one time, and a large amount of time and production cost are saved.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims (9)

1. The utility model provides a drilling pile placing device which characterized in that: including drill bit seat (1), rotating motor (2), connect pole (3), sheath (4) and pile head (6), rotating motor (2) set up on drill bit seat (1), connect pole (3) one end to connect on the output shaft of rotating motor (2), it is provided with down-the-hole drill bit (7) that are used for drilling to connect the pole (3) other end, sheath (4) cover is established on connecting pole (3), pile head (6) cover is established on sheath (4), connect pole (3), sheath (4), pile head (6) all with the output shaft coaxial line of rotating motor (2), rotating motor (2) one end is kept away from in sheath (4) still is provided with and is used for reaming piece milling cutter (8), the maximum distance of piece milling cutter (8) and sheath (4) axis is greater than the radius of the outer wall of pile head (6).

2. The drilling and piling device according to claim 1, wherein: the sheet milling cutter (8) is provided with a plurality of sheets, and the plurality of sheet milling cutters (8) are arranged around the outer wall of the sheath (4) in an array mode.

3. The drilling and piling device according to claim 1, wherein: the outer wall of one end, close to the down-the-hole drill bit (7), of the protective sleeve (4) is provided with an ear seat (41), and the sheet milling cutter (8) is hinged to the ear seat (41) through a pin shaft (42).

4. A drill staking device according to claim 3, in which: the hinge pin (42) is further sleeved with a torsion spring (43), stress ends of the torsion spring (43) in two directions are respectively fixed on the lug seat (41) and the sheet milling cutter (8), and the torsion spring (43) applies pre-tightening force towards the direction of the axis of the sheath (4) to the sheet milling cutter (8).

5. A drill piling device according to claim 4, wherein: the position, corresponding to the slice milling cutter (8), of the sheath (4) is provided with a through groove (44) for the slice milling cutter (8) to pass through, and the slice milling cutter (8) can swing in the through groove (44) around the axis of the pin shaft (42).

6. A drill piling device according to claim 5, wherein: still be provided with impacter (5) between connecting rod (3) and down-the-hole drill bit (7), impacter (5) and connecting rod (3) coaxial line, still be provided with wedge dog (51) that are used for keeping out the pretightning force of piece milling cutter (8) to the direction of sheath (4) axis on the periphery of impacter (5) near down-the-hole drill bit (7) one end, piece milling cutter (8) are close to wedge dog (51) one side and are provided with the inclined plane with wedge dog (51) assorted, through the position that changes wedge dog (51) to impacter (5) axis direction removal impacter (5) to change the contact position of piece milling cutter (8) and oblique dog and make piece milling cutter (8) can swing around the axis of round pin axle (42) under the effect of pretightning force.

7. The drilling and piling device according to claim 6, wherein: sheath (4) are close to rotary motor (2) one end, still are provided with through-hole (45) that are used for blowing off dust on wearing out the outer wall at pile head (6) position, connect pole (3) and impacter (5) to be hollow, blow off the dust of getting through-hole (45) through blowing in compressed air to connecting pole (3) middle part.

8. The drilling and piling device according to claim 1, wherein: one end, close to the rotary motor (2), of the sheath (4) is fixed on the connecting rod (3) through a fastening nut, an adjusting nut is further arranged on the connecting rod (3), and the position of the sheath (4) in the axial direction of the connecting rod (3) is adjusted through the adjusting nut.

9. The drilling and piling device according to claim 1, wherein: still overlap on sheath (4) outer wall and be equipped with fixed cover (61), fixed cover passes through the bolt fastening on the sheath outer wall, the lower terminal surface butt of fixed cover is so that stabilize the pile head on the up end of pile head, makes the pile head follow the sheath and descends in step.

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