CN211115797U - Deep pile engineering pump suction reverse circulation drill roller bit - Google Patents
Deep pile engineering pump suction reverse circulation drill roller bit Download PDFInfo
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- CN211115797U CN211115797U CN201921407281.7U CN201921407281U CN211115797U CN 211115797 U CN211115797 U CN 211115797U CN 201921407281 U CN201921407281 U CN 201921407281U CN 211115797 U CN211115797 U CN 211115797U
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Abstract
The utility model relates to the technical field of engineering pile driver equipment, in particular to a deep pile engineering pump suction reverse circulation drill roller bit, which comprises a reverse circulation drill rod, a steel cylinder, a roller and a roller seat; the reverse circulation drill rod is formed into a long round rod structure, and a backflow channel is arranged in the reverse circulation drill rod along the axial direction; the steel cylinder is formed into a cylindrical structure, the interior of the steel cylinder is a cavity, the upper end surface of the steel cylinder is connected with the reverse circulation drill rod, at least six gear seats with different orientations are uniformly distributed and welded on the lower end surface of the steel cylinder at intervals along the circumference, and at least three gear seats with different orientations are non-uniformly distributed and welded in the middle of the lower end surface of the steel cylinder; the gear is rotationally connected to the gear seat; by improving the structure form of the roller bit, the roller bit drills from the periphery and gradually diffuses to the center, the plane deviation in the drilling process of the roller bit is easier to control, the verticality of a pile body and a well hole is improved, and meanwhile, multiple rows of roller bits distributed in a staggered mode are in multi-point contact with a rock surface, so that the drilling speed is improved, the equipment loss rate is reduced, and the construction cost is saved.
Description
Technical Field
The utility model relates to an engineering pile driver equipment technical field specifically indicates a deep pile engineering pump suction reverse circulation rig roller bit.
Background
In the foundation construction of domestic and foreign bored piles, holes are usually formed by rotary drilling, which mostly adopts cone roller bit to carry out drilling construction, when in work, the cone roller bit center cone tip cone firstly contacts with the rock surface of the construction bottom layer, under the combined action of thrust and torque, the cone roller revolves around the drill rod center shaft on one hand, and simultaneously the cone roller rotates around the cone roller self axis, so that the rock layer is crushed under the comprehensive actions of impact, extrusion, shearing, tension and the like, but the structure of the actual construction bottom layer is complex, in the engineering, geological boundary strata with uneven weathering degree are often encountered, because the pile length is longer, the drill rod turbulence is increased, the drill bit is easy to deflect, the drilling surface of the traditional cone drill bit is in a triangular cone surface structure, the directions of the cone roller seat and the cone roller are consistent, the drilling process is gradually diffused to the periphery from the center point, when the rock stratum is complex or the hardness degree is uneven, during deep pile (ultra-long pile) construction, hole inclination is easily caused by the fact that drill rods are too long in connection and insufficient in rigidity, and the drilling direction of a drill bit cannot be stabilized, so that plane deviation of a roller bit in the drilling process is easily caused, the verticality of the pile is not easy to control, the stability of a main body structure is influenced, the descending of a reinforcement cage in the later stage is influenced, and the construction progress of engineering is influenced; this application is through optimizing again to the gear wheel orientation position of drill bit, drill bit structure and counter weight, has changed the broken rock drilling's of traditional drill bit mode, makes the back drill bit of optimizing have good adaptability to complicated or soft or hard uneven rock stratum, can control the straightness that hangs down of pore-forming well to improve pore-forming efficiency and quality.
Disclosure of Invention
In order to solve the problem, the utility model discloses aim at disclosing engineering pile driver equipment technical field, specifically indicate a deep pile engineering pump suction reverse circulation rig roller bit.
In order to achieve the above object, the utility model adopts the following technical scheme: a cone bit of a pump suction reverse circulation drilling machine of a deep pile engineering comprises a reverse circulation drill rod, a steel cylinder, a cone and a cone seat; the reverse circulation drill rod is formed into a long round rod structure, and a backflow channel is arranged in the reverse circulation drill rod along the axial direction; the steel cylinder is formed into a cylindrical structure, the interior of the steel cylinder is a cavity, the upper end surface of the steel cylinder is connected with the reverse circulation drill rod, at least six gear seats with different orientations are uniformly distributed and welded on the lower end surface of the steel cylinder at intervals along the circumference, and at least three gear seats with different orientations are non-uniformly distributed and welded in the middle of the lower end surface of the steel cylinder; the gear seat comprises a bottom plate which is welded with the steel cylinder and is of a square structure, two opposite sides of the end face, far away from the steel cylinder, of the bottom plate are respectively provided with a locking plate I and a locking plate II, and the heights of the locking plate I and the locking plate II are different; the bottom plate, the locking plate I and the locking plate II are connected with each other to form a concave-like structure; the cone is formed into a circular truncated cone-shaped structure and comprises an arc-shaped side surface, a large-diameter surface and a small-diameter surface, wherein the large-diameter surface and the small-diameter surface are arranged at two ends of the arc-shaped side surface; a circle of ring partition board coaxial with the steel cylinder is arranged in the steel cylinder, and the ring partition board divides the interior of the steel cylinder into a slag discharging channel and a counterweight cavity; the eccentric position of the lower end face of the steel cylinder is provided with a square slag suction port, and the slag suction port is communicated with a return channel of the reverse circulation drill rod through a slag discharge channel.
Preferably, the reverse circulation drill rod is provided with the guide ring on being close to the shaft part of steel drum, the guide ring is the ring shape structure of the footpath length unanimity with the coaxial setting of steel drum, and the guide ring is through a plurality of axial baffle and steel drum fixed connection, and the axial baffle is rectangular form steel sheet, and its one end links firmly with the steel drum, and its other end links firmly with the guide ring, and a plurality of axial baffle sets up along the circumferential direction interval of steel drum and/or guide ring.
Preferably, the steel cylinder, the cone seat and the guide ring are all made of thick steel plates with the thickness of 30mm, and the cone is made of carbon alloy tungsten steel.
Preferably, the steel cylinder, the gear seat and the guide ring are processed by carbon dioxide gas shielded welding.
Preferably, the outer side wall of the steel cylinder is uniformly provided with linear protection ribs at intervals along the circumferential direction.
Preferably, the included angle that the jam plate I, the jam plate II intersect after respectively linking to each other with the bottom plate is the acute angle.
Preferably, the included angle that the lock board I, the lock board II intersect after respectively linking to each other with the bottom plate is the right angle.
Preferably, the teeth of the gear are straight conical teeth.
The beneficial effects of the utility model are embodied in: the utility model provides a deep pile engineering pump suction reverse circulation rig roller bit, through improving the structure form of roller seat, roller in the roller bit, the lower terminal surface along the circumference interval evenly distributed welding has at least six different orientation roller seats, at least three different orientation roller seats of non-uniform distribution welding in the middle part of its lower terminal surface; the orientation of the arc-shaped side surface of each cone is different, and simultaneously, the cone bits are drilled from the periphery and gradually spread to the center in a multi-point contact mode by a plurality of rows of staggered cones and a rock surface, so that the cone bits are more easily controlled, the condition of plane deviation is reduced, the perpendicularity of a pile body and a well hole is improved, the drilling speed is improved, the equipment loss rate is reduced, and the construction cost is saved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a front view of the device of the present invention.
Fig. 3 is a side view of the device of the present invention.
Fig. 4 is a sectional view taken along line a-a of fig. 2 according to the present invention.
Fig. 5 is a rear view of the device of the present invention.
Fig. 6 is a cross-sectional view taken along line B-B of fig. 2 according to the present invention.
FIG. 7 is a cone structure diagram of the present invention.
Figure 8 is a schematic view of the connection of the cone and the cone base of the present invention.
Reference is made to the accompanying drawings in which:
1-reverse circulation drill rod, 2-steel cylinder, 3-gear, 4-gear seat, 5-bottom plate, 6-locking plate I, 7-locking plate II, 8-gear tooth, 9-rotating shaft, 10-ring partition plate, 11-guide ring, 12-radial reinforcing rib, 13-axial baffle, 14-slag suction port, 15-slag discharge channel, 16-counterweight cavity and 17-straight-line-shaped protective rib.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings:
the utility model provides a deep pile engineering pump suction reverse circulation drill roller bit, which comprises a reverse circulation drill rod 1, a steel cylinder 2, a roller 3 and a roller seat 4; the reverse circulation drill rod 1 is formed into a long round rod structure, and a backflow channel is arranged in the reverse circulation drill rod along the axial direction; the steel cylinder 2 is formed into a cylindrical structure, the interior of the steel cylinder is a cavity, linear protection ribs 17 are uniformly arranged on the outer side wall of the steel cylinder 2 at intervals along the circumferential direction, the upper end face of the steel cylinder 2 is connected with the reverse circulation drill rod 1, at least six gear seats 4 with different orientations are uniformly distributed and welded on the lower end face of the steel cylinder 2 at intervals along the circumferential edge, and at least three gear seats 4 with different orientations are non-uniformly distributed and welded on the middle part of the lower end face; the gear seat 4 comprises a bottom plate 5 which is welded with the steel cylinder 2 and is of a square structure, two opposite sides of the end face, far away from the steel cylinder 2, of the bottom plate 5 are respectively provided with a locking plate I6 and a locking plate II 7, and the heights of the locking plate I6 and the locking plate II 7 are different; the bottom plate 5, the locking plate I6 and the locking plate II 7 are connected with each other to form an open concave-like structure, preferably, the included angles of the locking plate I6 and the locking plate II 7 which are respectively connected with the bottom plate 5 and then intersected are acute angles, and the included angles of the locking plate I6 and the locking plate II 7 which are respectively connected with the bottom plate 5 and then intersected can also be right angles;
in the embodiment, twelve gear wheel seats 4 facing different directions are uniformly distributed and welded on the lower end surface of a steel cylinder 2 at intervals along the circumferential edge, wherein the openings of six gear wheel seats 4 face the central point of the lower end surface of the steel cylinder 2, one gear wheel seat 4 with the opening facing the opposite direction of the central point of the lower end surface of the steel cylinder 2 is arranged between the gear wheel seats 4 with every two openings facing the central point of the lower end surface of the steel cylinder 2, and twelve gear wheel seats 4 with the openings facing different directions are non-uniformly distributed and welded in the middle of the lower end surface of the steel cylinder 2, so that the contact mode of the gear wheel seats 4 and the gear wheels 3 with the ground plane is multi-point stress in the drilling process, the gear wheel bit starts to drill from the periphery and gradually diffuses to the center, the contact mode of the existing gear wheel drill bit with the ground plane in the drilling process is cone stress, and gradually diffuses from, therefore, plane deviation of the roller cone drill bit in the drilling process is easily caused, the verticality of the pile is not easy to control, the descending of a later reinforcing cage is influenced, compared with the traditional conical single-point stress, the roller cone drill bit with the plane multipoint stress is easier to control when drilling in a transitional rock stratum with uneven weathering degree, so that the condition of the plane deviation is reduced, the drilling stability can be kept, the verticality of a pile body and a well hole is improved, the phenomenon of pile deviation is reduced, meanwhile, the roller cone seats 4 are distributed in a multi-row staggered mode, so that the roller cones 3 are in multipoint contact with a rock surface, the effect of grinding the rock mass is improved, the drilling speed is improved, the equipment loss rate is reduced, and the construction cost is saved;
the cone 3 is formed into a circular truncated cone-shaped structure, and comprises an arc-shaped side surface, a large-diameter surface and a small-diameter surface which are arranged at two ends of the arc-shaped side surface, the large-diameter surface and the small-diameter surface are integrally formed into a closed circular truncated cone-shaped structure, a plurality of teeth 8 are uniformly arranged on the arc-shaped side surface, and in the embodiment, the teeth 8 are straight conical teeth; a rotating shaft penetrating through the large-diameter surface and the small-diameter surface is arranged at the central axis of the large-diameter surface and the small-diameter surface, and the rotating shaft 9 is respectively and rotatably installed on a locking plate I6 and a locking plate II 7 of the cone seat 4 through two terminals to form a movable connecting structure for the cone 3 to rotate around the rotating shaft 9 on the cone seat 4; because the orientations of the cone seats 4 are different, the orientations of the arc-shaped side surfaces of the cones 3 are different, the cone 3 which is distributed in a staggered manner generates comprehensive acting forces such as impact, extrusion, shearing and the like under the combined action of thrust and torque, so that the excavation surface of a construction bottom layer is sufficiently dispersed and crushed, and the cone bit drills from the periphery and gradually diffuses towards the center, so that the cone bit is more easily controlled, and the condition of plane deviation is reduced;
a circle of ring partition plates 10 coaxial with the steel cylinder 2 are arranged inside the steel cylinder 2, and the ring partition plates 10 divide the inside of the steel cylinder 2 into a slag discharging channel 15 and a balance weight cavity 16; a square slag suction port 14 is formed in the eccentric position of the lower end face of the steel cylinder 2, the slag suction port 14 is communicated with a backflow channel of the reverse circulation drill rod 1 through a slag discharge channel 15, and the slag suction port 14 can suck engineering bottom sediment such as broken stones, silt and the like generated in the drilling process of the roller bit, so that the drilling operation of the roller bit is facilitated; the end face of the steel cylinder 2 close to the reverse circulation drill rod 1 is provided with a discharge hole, the discharge hole is connected with a reversible sealing cover plate, the discharge hole is arranged above the balance weight cavity 16 and is communicated with the balance weight cavity 16, preferably, iron chips, gravels, soil and other balance weights can be placed in the balance weight cavity 16 according to different drilling stratums so as to improve the balance weight of the roller bit, thereby increasing the drilling capability of the roller bit, and the gravel, the gravels, the soil and other balance weights can be obtained locally on site without additional purchase;
in order to stabilize the direction of the roller bit in the drilling process and prevent the roller bit from deviating to cause hole deviation, a guide ring 11 is arranged on a shaft section of the reverse circulation drill rod 1 close to the steel cylinder 2, the guide ring 11 is of a circular structure with the same diameter and length as those of the steel cylinder 2, the guide ring 11 is fixedly connected with the steel cylinder 2 through a plurality of axial baffles 13, each axial baffle 13 is a long-strip-shaped steel plate, one end of each axial baffle 13 is fixedly connected (can be welded) with the steel cylinder 2, the other end of each axial baffle is fixedly connected (can be welded) with the guide ring 11, and the plurality of axial baffles 13 are arranged at intervals along the circumferential direction of the steel cylinder 2 and/or the guide ring 11; further, radial reinforcing ribs 12 are arranged on the end surface of the steel cylinder 2 facing the guide ring 11 at intervals along the circumferential direction; in the embodiment, the steel cylinder 2, the roller cone seat 4 and the guide ring 11 are all made of thick steel plates with the thickness of 30mm, the roller cone 3 is made of carbon alloy tungsten steel, and further, the steel cylinder 2, the roller cone seat 4 and the guide ring 11 are processed by carbon dioxide gas shielded welding; in the embodiment, the cone base 4 and the cone 3 in the cone bit are improved, the cone bit is enabled to drill from the periphery and gradually diffuse towards the center, the cone bit is easier to control, so that the plane deviation condition is reduced, the perpendicularity of the pile body and the well hole is improved, meanwhile, the cone 3 in a multi-row staggered distribution is in multi-point contact with the rock surface, the drilling speed is improved, the equipment loss rate is reduced, the construction cost is saved, the cone is very suitable for the construction application of the deep pile foundation of the bridge under the condition of a soft soil area, and the generated benefit is obvious.
Above, only the preferred embodiment of the present invention is not right the technical scope of the present invention makes any restriction, and the technical personnel in this industry can make some deformations and modifications under this technical scheme's enlightenment, all the basis the utility model discloses a technical essence is to any modification, the equivalent change and the modification of making of above embodiment, all still belong to the technical scheme's scope of the present invention.
Claims (8)
1. A deep pile engineering pump suction reverse circulation drilling machine roller bit is characterized by comprising a reverse circulation drill rod, a steel cylinder, a roller and a roller seat; the reverse circulation drill rod is formed into a long round rod structure, and a backflow channel is arranged in the reverse circulation drill rod along the axial direction; the steel cylinder is formed into a cylindrical structure, the interior of the steel cylinder is a cavity, the upper end surface of the steel cylinder is connected with the reverse circulation drill rod, at least six gear seats with different orientations are uniformly distributed and welded on the lower end surface of the steel cylinder at intervals along the circumference, and at least three gear seats with different orientations are non-uniformly distributed and welded in the middle of the lower end surface of the steel cylinder; the gear seat comprises a bottom plate which is welded with the steel cylinder and is of a square structure, two opposite sides of the end face, far away from the steel cylinder, of the bottom plate are respectively provided with a locking plate I and a locking plate II, and the heights of the locking plate I and the locking plate II are different; the bottom plate, the locking plate I and the locking plate II are connected with each other to form a concave-like structure; the cone is formed into a circular truncated cone-shaped structure and comprises an arc-shaped side surface, a large-diameter surface and a small-diameter surface, wherein the large-diameter surface and the small-diameter surface are arranged at two ends of the arc-shaped side surface; a circle of ring partition board coaxial with the steel cylinder is arranged in the steel cylinder, and the ring partition board divides the interior of the steel cylinder into a slag discharging channel and a counterweight cavity; the eccentric position of the lower end face of the steel cylinder is provided with a square slag suction port, and the slag suction port is communicated with a return channel of the reverse circulation drill rod through a slag discharge channel.
2. The deep pile engineering pump suction reverse circulation drilling machine roller bit according to claim 1, wherein a guide ring is arranged on a shaft section of the reverse circulation drilling rod close to the steel cylinder, the guide ring is of a circular ring structure coaxially arranged with the steel cylinder and has the same diameter and length, the guide ring is fixedly connected with the steel cylinder through a plurality of axial baffles, the axial baffles are long strip-shaped steel plates, one ends of the axial baffles are fixedly connected with the steel cylinder, the other ends of the axial baffles are fixedly connected with the guide ring, and the plurality of axial baffles are arranged at intervals along the circumferential direction of the steel cylinder and/or the guide ring.
3. The deep pile engineering pumping reverse circulation drilling machine roller bit as claimed in claim 1, wherein the steel cylinder, the roller seat and the guide ring are all made of thick steel plates of 30mm, and the roller is made of carbon alloy tungsten steel.
4. The deep pile engineering pumping reverse circulation drilling machine roller bit as claimed in claim 1, wherein the steel cylinder, the roller seat and the guide ring are processed by carbon dioxide gas shielded welding.
5. The deep pile engineering pumping reverse circulation drilling machine roller bit as claimed in claim 1, wherein the outer side wall of the steel cylinder is uniformly provided with straight-line-shaped protection ribs at intervals along the circumferential direction.
6. The deep pile engineering pump suction reverse circulation drilling machine roller bit as claimed in claim 1, wherein the included angles of the locking plate I and the locking plate II which are respectively connected with the bottom plate and then intersect are acute angles.
7. The deep pile engineering pump suction reverse circulation drilling machine roller bit as claimed in claim 1, wherein the included angles of the locking plate I and the locking plate II which are respectively connected with the bottom plate and then intersect are right angles.
8. The deep pile engineering pumping reverse circulation drill roller bit according to claim 1, wherein the teeth of the roller bit are straight conical teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921407281.7U CN211115797U (en) | 2019-08-28 | 2019-08-28 | Deep pile engineering pump suction reverse circulation drill roller bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921407281.7U CN211115797U (en) | 2019-08-28 | 2019-08-28 | Deep pile engineering pump suction reverse circulation drill roller bit |
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| Publication Number | Publication Date |
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| CN211115797U true CN211115797U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921407281.7U Active CN211115797U (en) | 2019-08-28 | 2019-08-28 | Deep pile engineering pump suction reverse circulation drill roller bit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997527A (en) * | 2020-10-30 | 2020-11-27 | 胜利油田固邦石油装备有限责任公司 | Long nozzle alloy drill bit for oil field drilling and use method thereof |
-
2019
- 2019-08-28 CN CN201921407281.7U patent/CN211115797U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997527A (en) * | 2020-10-30 | 2020-11-27 | 胜利油田固邦石油装备有限责任公司 | Long nozzle alloy drill bit for oil field drilling and use method thereof |
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