CN216240445U

CN216240445U - Forward and reverse circulation rotary drilling machine for bridge pile foundation

Info

Publication number: CN216240445U
Application number: CN202122960068.2U
Authority: CN
Inventors: 袁庆波; 王威; 黄海红
Original assignee: Jiangxi Sidongqiao Construction Group Co ltd
Current assignee: Jiangxi Sidongqiao Construction Group Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-04-08
Anticipated expiration: 2031-11-29

Abstract

The utility model discloses a bridge pile foundation forward and backward circulation rotary drilling machine which comprises a construction ground, a drill rod and a pump body, wherein a drill hole is formed in the construction ground, the drill rod is inserted into the drill hole, a drill bit is installed at the bottom of the drill rod, and a cutting part is welded on the surface of the upper part of the drill bit; according to the utility model, the arc pieces, the drilling teeth, the cutting pieces and the openings are arranged on the drill bit, when the drill bit is driven by the drill rod to drill, the conical cutting pieces welded on the periphery of the upper surface of the drill bit and the openings on the surface of the conical cutting pieces are surrounded by one circle of the upper surface of the drill bit, the hole expanding effect of the drill bit can be increased, the plurality of arc pieces which are mutually connected and are surrounded by the lower part of the drill bit and the conical drilling teeth which are equidistantly arranged on the surface of the drill bit can increase the drilling rate of the drill bit, and due to the arrangement of the plurality of arc pieces and the cutting pieces, compared with the traditional drill bit with a spiral structure, the forward and reverse circulation hole forming process can be considered, the drill bit does not need to be replaced in the hole forming process, and the advantages of high hole forming speed and strong applicability are achieved.

Description

Forward and reverse circulation rotary drilling machine for bridge pile foundation

Technical Field

The utility model relates to the technical field of bridge construction, in particular to a forward and reverse circulation rotary drilling machine for a bridge pile foundation.

Background

The rotary drilling machine is a machine for cutting soil and making the bored concrete pile of mud dado pore-forming, and the existing pore-forming mode has positive circulation and reverse circulation pore-forming processes, and the positive circulation pore-forming: the mud is conveyed into the inner cavity of the drill rod from the mud pool at high pressure by a mud pump and is ejected out through a mud outlet of the drill bit. The drill bit of bottom stirs the pine with the soil layer when rotatory and becomes the sediment of boring, is suspended by mud, rises along with mud and spills over, and through the sedimentation tank sediment purification, mud recycle uses, and the reverse circulation pore-forming: the mud flows into the drill hole from the mud pit, is mixed with the drilling slag, and under the action of the suction force of the vacuum pump, the mixture enters the slag inlet of the drill bit, passes through the inner cavity of the drill rod, and is discharged into the sedimentation tank for purification through the mud stone pump and the slurry outlet control raft, and then is used.

In the use process of the existing rotary drilling machine, due to the change of the forward and reverse circulation drilling process, the local part of a drill bit of the rotary drilling machine is often in a spiral structure, and the drill bit of a drill rod needs to be replaced, so that the drilling efficiency of the rotary drilling machine is influenced, and meanwhile, the drill bit of the existing rotary drilling machine is easily separated from the drill rod in the drilling process, so that the installation reliability of the drill bit is influenced.

Therefore, the forward and reverse circulation rotary drilling machine for the bridge pile foundation has the advantages of drill separation prevention and strong applicability, and further solves the problems in the background technology.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a positive and negative circulation rotary drilling machine for a bridge pile foundation.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a bridge pile foundation is just, reverse circulation rotary drill, includes construction ground, drilling rod and the pump body, the subaerial drilling of having seted up of construction, and inserts in the drilling and install the drilling rod, the drill bit is installed to the bottom of drilling rod, the upper portion skin weld of drill bit has the piece of cutting, and the surface of cutting the piece has seted up the opening, the welding is encircleed on drill bit lower part surface has a plurality of circular arc pieces, and the surface of a plurality of circular arc pieces all is provided with the brill tooth, the mud pit has been seted up to drilling one side, and installs the pump body on one side of the mud pit, pump body intercommunication has the hose, and the one end of hose is connected with tap, tap communicates with the top of drilling rod, drilling rod upper portion surface mounting has slewer, the inside erection column that is provided with of drill bit, and the surface of erection column passes through bracing piece and drill bit welding, drilling rod lower part skin weld has the hangers.

As a further description of the above technical solution: the top surface of erection column corresponds the drilling rod and has seted up the mounting groove, erection column upper portion surface a week link up the mounting groove and has seted up a plurality of through-holes, and all insert in a plurality of through-holes and be connected with the bolt, the one end of bolt is through thread groove and drilling rod fixed connection, the welding has the engaging lug on the bracing piece of erection column, and the engaging lug goes up the ring and overlaps and install the iron chain, the one end of iron chain articulates through the hangers of taking lock couple and drilling rod lower part surface.

As a further description of the above technical solution: the cutting pieces are arranged in a plurality of numbers, the cutting pieces are arranged on the surface of the upper part of the drill in a surrounding mode, and the lower parts of the cutting pieces are all in a conical structure.

As a further description of the above technical solution: the arc pieces are arranged in a plurality of surrounding modes relative to the drill bit, the bottoms of the arc pieces are connected with each other, and the drilling teeth of the arc pieces are of cone-shaped structures.

As a further description of the above technical solution: the pump body is a mud pump or a sand pump.

As a further description of the above technical solution: a plurality of support rods are welded on the surface of the mounting column in a surrounding mode, and one ends of the support rods are welded with the inner wall of the drill bit.

The utility model has the following beneficial effects:

according to the utility model, the arc pieces, the drilling teeth, the cutting pieces and the openings are arranged on the drill bit, when the drill bit is driven by the drill rod to drill, the conical cutting pieces welded on the periphery of the surface of the upper part of the drill bit and the openings on the surface of the conical cutting pieces are surrounded by one circle, so that the hole expanding effect of the drill bit can be increased, the plurality of arc pieces which are mutually connected and are surrounded by the lower part of the drill bit and the conical drilling teeth which are equidistantly arranged on the surface of the arc pieces can increase the drilling rate of the drill bit, and due to the arrangement of the plurality of arc pieces and the cutting pieces, compared with the traditional drill bit with a spiral structure, the forward and reverse circulation hole forming process can be taken into consideration, the drill bit does not need to be replaced in the hole forming process, and the advantages of high hole forming speed and strong applicability are achieved;

according to the utility model, the drill rod is inserted into the mounting groove of the mounting column in the drill bit, so that a plurality of thread grooves formed in the surface of the drill rod are matched with a plurality of through holes formed in the surface of the mounting column, and then the drill rod is connected with the drill bit through the thread grooves of the drill rod by the bolts penetrating through the through holes, and the connection between the drill rod and the drill bit is realized.

Drawings

FIG. 1 is a schematic structural diagram of a forward and reverse circulation rotary drilling rig for a bridge pile foundation according to the utility model;

FIG. 2 is a top view of a drill bit of the forward and reverse circulation rotary drilling rig for a bridge pile foundation according to the present invention;

fig. 3 is a schematic structural diagram of a mounting column of the forward and reverse circulation rotary drilling machine for the bridge pile foundation.

Illustration of the drawings:

1. constructing the ground; 2. a drill stem; 3. a mud pit; 4. a drill bit; 5. a circular arc member; 6. drilling; 7. a turning device; 8. a faucet; 9. a hose; 10. a pump body; 11. drilling teeth; 12. cutting the workpiece; 13. opening the gap; 14. mounting a column; 15. a support bar; 16. a bolt; 17. connecting lugs; 18. an iron chain; 19. mounting grooves; 20. and a through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

According to the embodiment of the utility model, a forward and reverse circulation rotary drilling machine for a bridge pile foundation is provided.

Referring to the drawings and the detailed description, the utility model is further explained, as shown in fig. 1-3, a bridge pile foundation forward and backward circulation rotary drilling machine according to an embodiment of the utility model comprises a construction ground 1, a drill rod 2 and a pump body 10, wherein a drill hole 6 is formed in the construction ground 1, the drill rod 2 is inserted and installed in the drill hole 6, a drill bit 4 is installed at the bottom of the drill rod 2, a cutting piece 12 is welded on the upper surface of the drill bit 4, a notch 13 is formed in the surface of the cutting piece 12, a plurality of arc pieces 5 are welded on the lower surface of the drill bit 4 in a surrounding manner, drill teeth 11 are arranged on the surfaces of the arc pieces 5, a mud pit 3 is formed in one side of the drill hole 6, the pump body 10 is installed on one side of the mud pit 3, the pump body 10 is communicated with a hose 9, one end of the hose 9 is connected with a water tap 8, the water tap 8 is communicated with the top of the drill rod 2, a rotary device 7 is installed on the upper surface of the drill rod 2, the drill bit 4 is internally provided with an installation column 14, the surface of the installation column 14 is welded with the drill bit 4 through a support rod 15, the lower surface of the drill rod 2 is welded with a hanging lug, by arranging the arc piece 5, the drilling teeth 11, the cutting piece 12 and the notch 13 on the drill bit 4, when the drill rod 2 drives the drill bit 4 to drill, the upper surface of the drill bit 4 is surrounded by the welded conical cutting piece 12 and the gap 13 on the surface, so that the hole expanding effect of the drill bit 4 can be increased, and the plurality of circular arc pieces 5 surrounding and connected with each other at the lower part of the drill bit 4 and the cone-shaped drilling teeth 11 arranged on the surface of the circular arc pieces at equal intervals can increase the drilling rate of the drill bit 4, because the arc pieces 5 and the cutting pieces 12 are arranged, compared with the traditional drill 4 with a spiral structure, the drilling process of forward and reverse circulation can be considered, the drill bit 4 does not need to be replaced in the process of changing the hole forming process, and the method has the advantages of high hole forming speed and strong applicability;

in one embodiment, the top surface of the mounting column 14 is provided with a mounting groove 19 corresponding to the drill rod 2, a plurality of through holes 20 are formed through the mounting groove 19 around the surface of the upper portion of the mounting column 14, bolts 16 are inserted and connected into the through holes 20, one end of each bolt 16 is fixedly connected with the drill rod 2 through a thread groove, a connecting lug 17 is welded on the support rod 15 of the mounting column 14, an iron chain 18 is sleeved on the connecting lug 17, one end of the iron chain 18 is hung and connected with a hanging lug on the lower surface of the drill rod 2 through a hook with a lock, the drill rod 2 is inserted and connected with the mounting groove 19 of the mounting column 14 inside the drill bit 4, a plurality of thread grooves formed on the surface of the drill rod 2 are engaged with a plurality of through holes 20 formed on the surface of the mounting column 14, then the bolts 16 penetrate through the through holes 20 to be in threaded connection with the thread grooves of the drill rod 2, so as to realize the connection between the drill rod 2 and the drill bit 4, and the iron chain 18 on the top surface of the drill bit 4 is hung and connected with the hanging lug correspondingly welded on the drill rod 2 through the hook with the thread groove with the bolt with the lock, can provide guarantee for the connection of drilling rod 2 and drill bit 4.

In one embodiment, the plurality of cutting pieces 12 are arranged around the upper surface of the drill 4, and the lower parts of the plurality of cutting pieces 12 are all in a cone-shaped structure, so that the reaming effect is increased through the cutting pieces 12 and the gaps 13 on the surfaces of the cutting pieces 12.

In one embodiment, the circular arc members 5 are provided in plurality, the circular arc members 5 are circumferentially arranged around the drill bit 4, the bottoms of the circular arc members 5 are connected with each other, the drilling teeth 11 of the circular arc members 5 are in a cone-shaped structure, and the drilling teeth 11 are equidistantly arranged on the surfaces of the circular arc members 5, so that the drilling rate is increased.

In one embodiment, the pump body 10 is a slurry pump or sand pump, the slurry pump is used for the forward cycle bore, and the sand pump is used for the reverse cycle bore.

In one embodiment, a plurality of support rods 15 are welded around the surface of the mounting column 14, one ends of the support rods 15 are welded to the inner wall of the drill bit 4, and the firmness of the mounting column 14 is increased conveniently through the support rods 15, wherein the mounting column 14 is connected with the arc pieces 5, so that the overall structural strength of the drill bit 4 can be increased.

The working principle is as follows:

when the device is used, the device is firstly installed in a to-be-formed hole area of a construction ground 1, a plurality of thread grooves formed in the surface of a drill rod 2 are enabled to be matched with a plurality of through holes 20 formed in the surface of an installation column 14 in a drill bit 4 by inserting a drill rod 2 into an installation groove 19 of the installation column 14 in the drill bit 4, then the drill rod 2 is in threaded connection with the thread grooves of the drill rod 2 by penetrating through the through holes 20 through bolts 16, connection between the drill rod 2 and the drill bit 4 is achieved, an iron chain 18 on the top surface of the drill bit 4 is hooked with a hook with a lock and correspondingly welded on the drill rod 2, a guarantee can be provided for connection between the drill rod 2 and the drill bit 4, arc pieces 5, drilling teeth 11, cutting pieces 12 and gaps 13 are arranged on the drill bit 4, when the drill bit 4 is driven by the drill rod 2 to drill, a circle of the upper surface of the drill bit 4 surrounds the welded cone-shaped cutting pieces 12 and the gaps 13 on the surface, the hole expanding effect of the drill bit 4 can be increased, the lower portion of the drill bit 4 surrounds and the mutually connected arc pieces 5 and the cone-shaped drill bit 4 at equal intervals Tooth 11 can increase the rate of penetration of drill bit 4, owing to set up a plurality of circular arc pieces 5 and cut 12, compare in the drill bit 4 that the tradition has helical structure, can compromise just, reverse circulation's pore-forming technology, need not change drill bit 4 in the change pore-forming technological process, possesses fast and the strong advantage of suitability of pore-forming speed.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a bridge pile foundation is just, reverse circulation rotary drill, includes construction ground (1), drilling rod (2) and pump body (10), its characterized in that: the construction method is characterized in that a drilling hole (6) is formed in the construction ground (1), a drilling rod (2) is inserted into the drilling hole (6), a drill bit (4) is installed at the bottom of the drilling rod (2), a cutting piece (12) is welded on the surface of the upper portion of the drill bit (4), notches (13) are formed in the surface of the cutting piece (12), a plurality of arc pieces (5) are welded on the surface of the lower portion of the drill bit (4) in a surrounding mode, drilling teeth (11) are arranged on the surfaces of the arc pieces (5), a mud pit (3) is formed in one side of the drilling hole (6), a pump body (10) is installed on one side of the mud pit (3), the pump body (10) is communicated with a hose (9), one end of the hose (9) is connected with a faucet (8), the faucet (8) is communicated with the top of the drilling rod (2), and a rotating device (7) is installed on the surface of the upper portion of the drilling rod (2), the drill bit (4) is internally provided with an installation column (14), the surface of the installation column (14) is welded with the drill bit (4) through a support rod (15), and the surface of the lower part of the drill rod (2) is welded with a hanging lug.

2. The bridge pile foundation forward and reverse circulation rotary drilling machine according to claim 1, characterized in that: mounting groove (19) have been seted up to the top surface of erection column (14) corresponding drilling rod (2), a plurality of through-holes (20) have been seted up to erection column (14) upper portion surface a week link up mounting groove (19), and all insert in a plurality of through-holes (20) and be connected with bolt (16), the one end of bolt (16) is passed through thread groove and drilling rod (2) fixed connection, the welding has engaging lug (17) on bracing piece (15) of erection column (14), and engaging lug (17) upper ring cover installs iron chain (18), the one end of iron chain (18) articulates through the hangers of taking lock couple and drilling rod (2) lower part surface.

3. The bridge pile foundation forward and reverse circulation rotary drilling machine according to claim 1, characterized in that: the plurality of cutting pieces (12) are arranged, the plurality of cutting pieces (12) are arranged on the upper surface of the drill bit (4) in a surrounding mode, and the lower portions of the plurality of cutting pieces (12) are all in a conical structure.

4. The bridge pile foundation forward and reverse circulation rotary drilling machine according to claim 1, characterized in that: the arc pieces (5) are arranged in a plurality of numbers, the arc pieces (5) are arranged around the drill bit (4), the bottoms of the arc pieces (5) are connected with each other, and the drilling teeth (11) of the arc pieces (5) are of a conical structure.

5. The bridge pile foundation forward and reverse circulation rotary drilling machine according to claim 1, characterized in that: the pump body (10) is a mud pump or a sand pump.

6. The bridge pile foundation forward and reverse circulation rotary drilling machine according to claim 1, characterized in that: a plurality of supporting rods (15) are welded on the surface of the mounting column (14) in a surrounding mode, and one ends of the supporting rods (15) are welded with the inner wall of the drill bit (4).