CN217632270U - Drilling tool - Google Patents
Drilling tool Download PDFInfo
- Publication number
- CN217632270U CN217632270U CN202220424618.0U CN202220424618U CN217632270U CN 217632270 U CN217632270 U CN 217632270U CN 202220424618 U CN202220424618 U CN 202220424618U CN 217632270 U CN217632270 U CN 217632270U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- rod
- circular ring
- drill
- joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
A drilling tool comprises a front end drill bit, a pipe body, a plurality of inclined rods with a plurality of alloy cutter heads, a drill bit with a lower circular ring, an upper circular ring and an upper joint, and a drill rod with an upper joint, a lower joint and a rod body, wherein the front end drill bit is welded with the front end drill bit through the center of the front end of a U-shaped groove of the front end drill bit; the inclined rod is positioned between the front end drill bit and the lower circular ring, is obliquely arranged in a geometric symmetrical mode in the radial direction of the drill bit, and is respectively fixed on the outer wall of the pipe body and the lower end face of the lower circular ring; a plurality of alloy cutter heads are arranged at intervals along the length direction of each inclined rod; the outer end face of the upper joint is provided with a straight groove and a plurality of uniformly distributed screw holes; the outer end face of the lower joint is provided with a straight lug and a plurality of uniformly distributed through holes. The utility model discloses the drilling tool has characteristics such as simple structure, butt joint convenience and pore-forming are reliable, realizes that alloy tool bit cuts simultaneously and creeps into on front end drill bit and the down tube, realizes swiftly drilling, stirring construction in the high limited low headroom region, improves the efficiency of bored concrete pile construction and ground reinforcement processing.
Description
Technical Field
The utility model belongs to the technical field of construction machinery, in particular to drilling tool.
Background
With the rapid development of rail transit, the deep stirring reinforcement method is widely used for foundation and soft foundation treatment, and the limitation of the surrounding environment becomes the difficult problem of construction of a plurality of pile foundation projects. By adopting the traditional construction method of deepening layer stirring reinforcement of the walking pile machine, when structures, high-voltage power facilities and other reasons exist above a construction site, a tower frame is high and large in size, so that the tower frame cannot enter the construction site. The method is particularly important in the face of complex surrounding environment, a proper construction process and proper pile foundation construction equipment are selected according to local conditions, the fender pile in the high-voltage line influence range is designed to be a manual hole digging pile, the pile length is large, the pile diameter is small, the soil layer is clay with micro-expansion characteristics, the volume is rapidly expanded after the fender pile is soaked in water, hole collapse is prone to occurring, the safety risk of manual hole digging is high, the construction difficulty is large, implementation is difficult, and a large amount of manpower and capital cost are consumed. Therefore, a drilling tool is needed to be developed, which facilitates the disassembly and the additional connection between the drill rod and the drill bit, so as to adapt to the low clearance area with limited height of the construction site and great influence of the surrounding environment for cast-in-place pile construction and foundation reinforcement treatment construction.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a shortcoming that prior art exists is overcome to main aim at, provides a drilling tool that has simple structure, butt joint convenience and pore-forming are reliable, realizes that the alloy tool bit on front end drill bit and the down tube cuts simultaneously and drills, stirs the stake, guarantees the firm butt joint of drilling rod and drill bit, realizes swiftly drilling, stirring construction in the low headroom rig region that high restriction and surrounding environment are limited, improves the operating efficiency of low headroom region bored concrete pile construction and ground reinforcement processing.
The utility model discloses a following technical scheme realizes:
a drilling tool, comprising: comprises a front end drill bit, a pipe body, a plurality of inclined rods with a plurality of alloy cutter heads, a drill bit with a lower circular ring, an upper circular ring and an upper joint, a drill rod with an upper joint, a lower joint and a rod body,
the method is characterized in that:
the front end drill bit of the drill bit is a plate-shaped drill bit with a bevel edge and a drill point provided with a wear-resistant layer, and the front end drill bit is inserted into the front end part of the pipe body through a U-shaped groove of the front end drill bit and is welded and fixed with the pipe body;
the inclined rods are positioned between the front end drill bit and the lower circular ring and are obliquely arranged in a geometric symmetrical mode in the radial direction of the drill bit, one ends of the inclined rods are respectively fixed on the outer wall of the pipe body above the front end drill bit, and the other ends of the inclined rods are respectively fixed on the lower end face of the lower circular ring; the alloy cutter heads are arranged on one side of each inclined rod at intervals along the length direction of each inclined rod;
the lower circular ring and the upper circular ring of the drill bit are fixed with the outer wall of the pipe body through a plurality of spokes; the lower circular ring and the upper circular ring are fixedly connected through a plurality of connecting plates;
the outer end faces of the upper joints of the drill bit and the drill rod are provided with straight grooves and a plurality of uniformly distributed screw holes; the outer end face of the lower joint of the drill rod is provided with a straight lug and a plurality of uniformly distributed through holes; and the straight groove of the upper joint of the drill bit enters the straight convex block of the lower joint of the drill rod, and an external screw passes through each through hole of the lower joint of the drill rod and is screwed on each screw hole of the upper joint of the drill bit to complete the connection of the drill bit and the drill rod.
The utility model discloses can, the fit clearance of the straight recess of the top connection of drill bit and drilling rod and the straight lug of the lower clutch of drilling rod is 0.20-0.30mm.
The inclined rods of the drill bit are obliquely arranged in two, or three, or four, or six in the radial direction.
Drawings
FIG. 1 is a schematic view of the structure of the drilling tool of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a bottom view of FIG. 1;
FIG. 4 isbase:Sub>A sectional view taken along line A-A of FIG. 2;
fig. 5 is a partially enlarged view of a portion B in fig. 4.
Detailed Description
The drilling tool of the present invention will be further described with reference to fig. 1-5.
A drilling tool, comprising: a drill bit 1 comprising a front end drill bit 11, a tube body 12, a plurality of inclined rods 13 with a plurality of alloy cutting heads 138, a lower circular ring 14, an upper circular ring 15 and an upper joint 66, a drill rod 2 comprising an upper joint 66, a lower joint 66' and a rod body 22, wherein:
the front end drill 11 of the drill 1 is a plate-shaped drill with a bevel edge and a wear-resistant layer at the drill tip, and the front end drill is inserted into the front end part of the pipe body 12 through a U-shaped groove 114 and is welded and fixed with the front end part.
The inclined rods 13 are positioned between the front end drill bit 11 and the lower circular ring 14 and are obliquely arranged in a geometric symmetrical mode in the radial direction of the drill bit 1, one ends of the inclined rods are respectively fixed on the outer wall of the pipe body 12 above the front end drill bit 11, and the other ends of the inclined rods are respectively fixed on the lower end face of the lower circular ring 14; the alloy tips 138 are spaced apart along one side of each of the diagonal members 13 in the longitudinal direction thereof. The inclined rods 13 of the drill bit 1 are arranged obliquely in the radial direction thereof in two, or three, or four, or six. Therefore, in the rotating process of the inclined rods 13 of the drill bit 1, the alloy cutter head 138 on the inclined rods and the inclined edge and the drill point of the front end drill bit 11 drill and cut soil simultaneously, and the drilling capability of the drilling tool is effectively improved.
The lower ring 14 and the upper ring 15 of the drill bit 1 are fixed with the outer wall of the pipe body 12 through a plurality of spokes 77; the lower ring 14 and the upper ring 15 are connected and fixed through a plurality of connecting plates 145. When the drill bit is pressed downwards for drilling and lifted for stirring, the lower circular ring 14 and the upper circular ring 15 always protect the formed hole, so that the wall of the formed pile is prevented from collapsing and retracting, and the pile forming quality of the cast-in-place pile is effectively improved.
The outer end surfaces of the upper joints 66 of the drill bit 1 and the drill rod 2 are provided with straight grooves 664 and a plurality of uniformly distributed screw holes; the outer end face of the lower joint 66 'of the drill rod 2 is provided with a straight lug 664' and a plurality of uniformly distributed through holes; the straight grooves 664 of the upper joint 66 of the drill bit 1 enter the straight protrusions 664' of the lower joint 66' of the drill rod 2, and external screws are screwed into the respective screw holes of the upper joint 66 of the drill bit 1 through the respective through holes of the lower joint 66' of the drill rod 2, so that the connection of the drill bit 1 and the drill rod 2 is completed. The fit clearance between the straight grooves 664 of the upper joint 66 of the drill bit 1 and the drill rod 2 and the straight protrusions 664 'of the lower joint 66' of the drill rod 2 is 0.20-0.30mm. Therefore, the drill bit 1 and the drill rod 2 are reliably and tightly butted, the power torque of the driving part of the low clearance drilling machine is effectively transmitted, and the drilling tool is prevented from shaking in the rotating process, so that the vertical precision of drilling and pile forming is improved.
The utility model discloses the drilling tool has characteristics such as simple structure, butt joint convenience and pore-forming are reliable, realizes that the alloy tool bit on front end drill bit and the down tube cuts simultaneously and drills, stirs the stake, guarantees the firm butt joint of drilling rod and drill bit, realizes swiftly drilling, stirring construction in the low headroom rig region that high restriction and surrounding environment are limited, effectively improves the operating efficiency of the regional bored concrete pile construction of low headroom and ground reinforcement processing.
Without deviating from the general concept of the present invention, the present invention may be changed and modified in various ways, but the present invention is also within the scope of protection as long as the components of the present invention are the same or equivalent.
Claims (3)
1. A drilling tool, comprising: comprises a front end drill bit (11), a pipe body (12), a plurality of inclined rods (13) with a plurality of alloy cutter heads (138), a drill bit (1) of a lower circular ring (14), an upper circular ring (15) and an upper joint (66), and a drill rod (2) comprising the upper joint (66), a lower joint (66') and a rod body (22),
the method is characterized in that:
the front end drill bit (11) of the drill bit (1) is a plate-shaped drill bit with a bevel edge and a drill tip with a wear-resistant layer, and is inserted into the front end part of the pipe body (12) through a U-shaped groove (114) of the front end drill bit and is welded and fixed with the front end part;
the inclined rod (13) of the drill bit (1) is positioned between the front end drill bit (11) and the lower circular ring (14) and is obliquely arranged in a geometric symmetrical mode in the radial direction of the drill bit (1), one end of the inclined rod is respectively fixed on the outer wall of the pipe body (12) above the front end drill bit (11), and the other end of the inclined rod is respectively fixed on the lower end face of the lower circular ring (14); the alloy cutter heads (138) are arranged on one side of each inclined rod (13) at intervals along the length direction of the inclined rod;
the lower circular ring (14) and the upper circular ring (15) of the drill bit (1) are fixed with the outer wall of the pipe body (12) through a plurality of spokes (77); the lower circular ring (14) and the upper circular ring (15) are fixedly connected through a plurality of connecting plates (145);
the outer end surfaces of the upper joints (66) of the drill bit (1) and the drill rod (2) are provided with straight grooves (664) and a plurality of uniformly distributed screw holes; the outer end face of the lower joint (66 ') of the drill rod (2) is provided with a straight lug (664') and a plurality of uniformly distributed through holes; and (3) the straight groove (664) of the upper joint (66) of the drill bit (1) enters the straight bump (664 ') of the lower joint (66 ') of the drill rod (2), and external screws are screwed into the screw holes of the upper joint (66) of the drill bit (1) through the through holes of the lower joint (66 ') of the drill rod (2) to complete the connection of the drill bit (1) and the drill rod (2).
2. Drilling tool according to claim 1, characterized in that the fit clearance of the straight groove (664) of the upper joint (66) of the drill bit (1) and the drill rod (2) and the straight protrusion (664 ') of the lower joint (66') of the drill rod (2) is 0.20-0.30mm.
3. Drilling tool according to claim 1, characterized in that the bent rods (13) of the drill bit (1) are arranged diagonally in their radial direction in two, or three, or four, or six.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220424618.0U CN217632270U (en) | 2022-03-01 | 2022-03-01 | Drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220424618.0U CN217632270U (en) | 2022-03-01 | 2022-03-01 | Drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217632270U true CN217632270U (en) | 2022-10-21 |
Family
ID=83644971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220424618.0U Active CN217632270U (en) | 2022-03-01 | 2022-03-01 | Drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217632270U (en) |
-
2022
- 2022-03-01 CN CN202220424618.0U patent/CN217632270U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105649011A (en) | Forming method for square pile hole | |
| CN211737051U (en) | Deviation-preventing rotary drilling bit and rotary drilling rig | |
| CN217632270U (en) | Drilling tool | |
| CN103410447A (en) | Square drill bit of rotary drilling rig | |
| CN212201908U (en) | Double-section hobbing cutter drill bit for large-diameter piles | |
| CN105317381A (en) | Drill bit for constructing cast-in-situ bored pile and hole forming method using same | |
| CN108868590B (en) | Single-shaft cement-soil mixing pile drill bit | |
| CN114352208A (en) | Drilling tool | |
| CN115772899A (en) | Cast-in-place pile reinforcement cage hole collapse drilling and cleaning device and method | |
| CN105887841A (en) | Arc-socket T-shaped retaining pile manufacturing equipment | |
| CN105887847A (en) | Y-shaped locking pile wall forming equipment | |
| CN110158584B (en) | Double-layer drill bit structure for four limbs | |
| CN217001688U (en) | Drilling machine | |
| CN205638313U (en) | Cover bores to salvage handles bury drills device | |
| JP4074198B2 (en) | How to remove existing piles | |
| CN219386312U (en) | Cleaning device is got into to bored concrete pile steel reinforcement cage hole that collapses | |
| CN208578508U (en) | A kind of single shaft cement mixing method drill bit | |
| CN213234956U (en) | Be applied to drilling tool and stake machine of stake machine | |
| CN110158571B (en) | Structure of double-deck double-stirring drill bit with two pattern plates | |
| CN205955649U (en) | What complete hard rock was got to brill digs drilling tool soon | |
| CN205154038U (en) | A drill bit for constructing drilling bored concrete pile | |
| CN116591693B (en) | Tunnel pipe shed construction method | |
| CN219061522U (en) | Disposable drill bit and drill bit assembly for soil layer drilling | |
| CN213775253U (en) | Spiral drill bucket | |
| CN218376339U (en) | Drilling barrel with cleaning mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |