CN103982138A - Automatic expanding drill for drilling machine - Google Patents
Automatic expanding drill for drilling machine Download PDFInfo
- Publication number
- CN103982138A CN103982138A CN201410236525.5A CN201410236525A CN103982138A CN 103982138 A CN103982138 A CN 103982138A CN 201410236525 A CN201410236525 A CN 201410236525A CN 103982138 A CN103982138 A CN 103982138A
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- China
- Prior art keywords
- adapter sleeve
- rod
- hole
- strut
- pin
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Abstract
An automatic expanding drill for a drilling machine comprises a drilling rod, a first connection sleeve sleeves one end of the drilling rod, a second connection sleeve sleeves a rear end of the drilling rod, a first support rod and a second support rod in symmetry are mounted between the first connection sleeve and the second connection sleeve, one end of the first support rod is mounted on the first connection sleeve via first connection pins, the other end of the first support rod is hinged to one end of the support rod via second connection pins, the other end of the second support rod is mounted on the second connection sleeve, and a third connection sleeve is mounted on a tail portion of the drilling rod and fastened with the second connection sleeve via a clamping sleeve which is locked by screws. The automatic expanding drill for the drilling machine has the advantages of compact and reasonable structure, convenience in construction, low construction cost and significant economic benefit; by the expanding drill, an expanded bottom body or multiple sections of expanded bodies are formed at the bottom of an anchor cable hole or on appointed portions, drilling of a large-diameter anchor hole at the lower end of a small-diameter hole is realized, and finally bearing capability of a foundation pit is improved by the anchor cable hole with the bottom end expanded (or multiple layers of expanded holes).
Description
Technical field
The present invention relates to ground stabilization auxiliary equipment technical field, automatic expansion formula drill bit for especially a kind of rig of the anchoring construction technique for ground stabilization.
Background technology
Ground stabilization is that anchoring drilling machine is widely used in pattern foundation pit supporting structure in city in order to prevent foundation pit collapse after foundation dredging, and the construction technology of ground stabilization is that anchor hole bores and makes, and then plays anchor cable, the workflows such as concrete casting, anchor hole tensioning fixation; Shelter Forest due to city, foundation ditch is more and more nearer apart from neighboring buildings, foundation ditch surrounding is often close to various important buildings, as track traffic facility, underground utilities, tunnel, natural ground private residence, building etc., design of foundation pit or construction wrong, all can cause adverse effect to neighboring buildings.Consider the safety of adjacent building, hole hole diameter enlargement entirely, should make anchorage cable stretching power reach designing requirement again, guarantee again enough supporting capacitys, a kind of method is to use jet drill rig construction, but need to be equipped with slush pump, the corollary equipments such as air compressor machine, have improved construction cost greatly.The best way is the reduction anchor cable hole degree of depth, expands aperture form reaming section in anchor cable hole bottom (or appointed part).Reaming often adopts blast reaming mode, owing to expanding the bad control of size of body, explodes simultaneously and has less use in certain influence so reality in stratum around to expanding body.
Summary of the invention
The applicant is for the shortcoming in above-mentioned existing production technology; a kind of automatic expansion formula drill bit for rig of replacing rational in infrastructure, convenient is provided; by use, expand drill bit; in anchor cable hole bottom or canned paragraph appointed part bore again the anchor hole of making expansion; increase anchor cable bearing capacity, finally form a bottom and expand the supporting capacity that build anchor cable hole (or multistage expands build anchor cable hole) is guaranteed foundation ditch.Not only reduce construction cost, also guaranteed workmanship.
The technical solution adopted in the present invention is as follows:
Automatic expansion formula drill bit for a kind of rig, comprise drilling rod, described drilling rod one end cover has the first adapter sleeve, described drilling rod rear end cover has the second adapter sleeve, symmetrically arranged the first strut and the second strut are installed between the first adapter sleeve and the second adapter sleeve, one end of described the first strut is arranged on the first adapter sleeve by the first connecting pin, the other end of described the first strut is hinged by the second connecting pin and second strut one end, and the described second strut other end is installed on the second adapter sleeve by the 3rd connecting pin; Described drilling rod afterbody is provided with the 3rd adapter sleeve, and described the 3rd adapter sleeve is fastening by cutting ferrule and the second adapter sleeve, and described cutting ferrule passes through screw lock.
Its further technical scheme is:
The structure of described drilling rod is: comprise boring bar head, described boring bar head middle part is extended with intermediate bar, the first adapter sleeve is installed on described intermediate bar, and described intermediate bar afterbody is extended with the connecting rod being connected with the 3rd adapter sleeve with the second adapter sleeve, and the outer circumference surface of described connecting rod is provided with external screw thread;
Described the first adapter sleeve becomes short cylinder structure, and its middle part has the first installing hole, has four cross the first pin-and-holes on the periphery of described first adapter sleeve one end;
The structure of described the first strut is: comprise first body of rod, the two ends of described first body of rod have the second pin-and-hole and the 3rd pin-and-hole that the first connecting pin and the second connecting pin are installed, and on described first body of rod, are interleaved and installed with a plurality of alloy columns;
The structure of described the second strut is: the body of rod in the middle of comprising, in the middle of described, front end and the rear end of the body of rod are respectively arranged with second body of rod, on described second body of rod, have the 4th pin-and-hole that the second connecting pin is installed, on the described middle body of rod, have the 5th pin-and-hole that the 3rd connecting pin is installed;
Described the second adapter sleeve becomes short cylinder structure, and its middle part has the second installing hole, has four crosss the 6th pin-and-hole on the periphery of described second adapter sleeve one end, and described the second adapter sleeve other end end face has left half draw-in groove;
The structure of described the 3rd adapter sleeve is: described the 3rd one end, adapter sleeve middle part is provided with the internal thread hole being connected with drilling rod, the other end is provided with bellmouth, the end face of described the 3rd adapter sleeve outer circumference surface is provided with right half draw-in groove, on described right half draw-in groove, have screw hole, described the 3rd adapter sleeve outer circumference surface middle part has groove;
The structure of described cutting ferrule is: described cutting ferrule becomes hollow short cylinder structure, on described cutting ferrule periphery, has a plurality of counterbores.
Beneficial effect of the present invention is as follows:
Compact conformation of the present invention, rationally, rotates the helicitic texture that makes adapter sleeve by drilling rod, screw the descending drill bit that forces of rear another adapter sleeve of stressed promotion and strut, simple and reliable expansion the diameter of drill bit.Realization is in anchor cable hole bottom or canned paragraph appointed part forms bottom expansion body or multistage expands body, the drag that adhesion strength in dependence straight hole section and reaming section between injecting cement paste and hole wall Rock And Soil and reaming section Rock And Soil are extracted expansion body fixes anchor cable, finally make anchor cable bearing capacity be greatly enhanced, fully call formation strength and greatly improve anchored force.
The present invention is reasonable in design, simple in structure, easy to use; Simple and reliable realization bores in small-bore anchor hole lower floor the function of making hole, large aperture again.Common drill bit maximum drilling diameter of the prior art can only reach 150mm left and right, and automatic expansion drill bit of the present invention can be designed to bore diameter and reach any specification between 200mm-500mm, can meet different clients' demand, in ground lower leaf reaming; Effectively reduce construction cost and guaranteed workmanship.
Accompanying drawing explanation
Fig. 1 is the structural representation of invention.
Fig. 2 is top view of the present invention (duty).
Fig. 3 is the scheme of installation of drilling rod of the present invention and the first adapter sleeve.
Fig. 4 is the structural representation of the present invention's the first adapter sleeve.
Fig. 5 is along the full sectional view in A-A cross section in Fig. 4.
Fig. 6 is the front view of the present invention's the first strut.
Fig. 7 is the top view of Fig. 6.
Fig. 8 is the front view of the present invention's the second strut.
Fig. 9 is the top view of Fig. 8.
Figure 10 is the front view of the present invention's the second adapter sleeve.
Figure 11 is along the full sectional view in B-B cross section in Figure 10.
Figure 12 is the structural representation of the present invention's the 3rd adapter sleeve.
Figure 13 is the structural representation of cutting ferrule of the present invention.
Wherein: 1, drilling rod; 2, the first adapter sleeve; 3, the first connecting pin; 4, the first strut; 5, the second connecting pin; 6, the second strut; 7, the 3rd connecting pin; 8, the second adapter sleeve; 9, cutting ferrule; 10, screw; 11, the 3rd adapter sleeve; 12, boring bar head; 13, intermediate bar; 14, connecting rod; 15, the first pin-and-hole; 16, the first installing hole; 17, the second pin-and-hole; 18, first body of rod; 19, alloy column; 20, the 3rd pin-and-hole; 21, the 4th pin-and-hole; 22, second body of rod; 23, the 5th pin-and-hole; 24, the middle body of rod; 25, the 6th pin-and-hole; 26, left half draw-in groove; 27, the second installing hole; 28, screw hole; 29, right half draw-in groove; 30, internal thread hole; 31, groove; 32, bellmouth; 33, counterbore.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
As depicted in figs. 1 and 2, automatic expansion formula drill bit for a kind of rig of the present embodiment, comprise drilling rod 1, drilling rod 1 one end cover has the first adapter sleeve 2, drilling rod 1 rear end cover has the second adapter sleeve 8, symmetrically arranged the first strut 4 and the second strut 6 are installed between the first adapter sleeve 2 and the second adapter sleeve 8, one end of the first strut 4 is arranged on the first adapter sleeve 2 by the first connecting pin 3, the other end of the first strut 4 is hinged by the second connecting pin 5 and second strut 6 one end, and second strut 6 other ends are installed on the second adapter sleeve 8 by the 3rd connecting pin 7; It is fastening by cutting ferrule 9 and the second adapter sleeve 8 that drilling rod 1 afterbody is provided with the 3rd adapter sleeve 11, the three adapter sleeves 11, and cutting ferrule 9 is locked by screw 10.
As shown in Figure 3, the structure of drilling rod 1 is: comprise boring bar head 12, boring bar head 12 middle parts are extended with intermediate bar 13, the first adapter sleeve 2 is installed on intermediate bar 13, intermediate bar 13 afterbodys are extended with the connecting rod 14 being connected with the 3rd adapter sleeve 11 with the second adapter sleeve 8, and the outer circumference surface of connecting rod 14 is provided with external screw thread.
As shown in Figure 4 and Figure 5, the first 2 one-tenth of adapter sleeves short cylinder structure, its middle part has on the periphery of first installing hole 16, the first adapter sleeve 2 one end and has four crosss the first pin-and-hole 15.
As shown in Figure 6 and Figure 7, the structure of the first strut 4 is: comprise first body of rod 18, the two ends of first body of rod 18 have to install on the second pin-and-hole 17 of the first connecting pin 3 and the second connecting pin 5 and the 3rd pin-and-hole 20, the first bodies of rod 18 and are interleaved and installed with a plurality of alloy columns 19.
As shown in Figure 8 and Figure 9, the structure of the second strut 6 is: the body of rod 24 in the middle of comprising, front end and the rear end of the middle body of rod 24 are respectively arranged with second body of rod 22, on second body of rod 22, have the 4th pin-and-hole 21 that the second connecting pin 5 is installed, on the middle body of rod 24, have the 5th pin-and-hole 23 that the 3rd connecting pin 7 is installed.
As shown in Figure 10 and Figure 11, the second 8 one-tenth of adapter sleeves short cylinder structure, its middle part has and on the periphery of second installing hole 27, the second adapter sleeve 8 one end, has four crosss the 6th pin-and-hole 25, the second adapter sleeve 8 other end end faces and have left half draw-in groove 26.
As shown in figure 12, the structure of the 3rd adapter sleeve 11 is: the 3rd adapter sleeve 11 one end, middle part are provided with the internal thread hole 30 being connected with drilling rod 1, the other end is provided with bellmouth 32, the end face of the 3rd adapter sleeve 11 outer circumference surfaces is provided with right half draw-in groove 29, on right half draw-in groove 29, have screw hole 28, the three adapter sleeve 11 outer circumference surface middle parts and have groove 31.
As shown in figure 13, the structure of cutting ferrule 9 is: 9 one-tenth hollow short cylinder structures of cutting ferrule, have a plurality of counterbores 33 on cutting ferrule 9 peripheries.
Counterbore 33, by half draw-in groove 26 of the left side after being connected and right half draw-in groove 29 clampings, is then locked through screw hole 28 by screw 10.Guarantee that the 3rd adapter sleeve 11 is reliably connected with the second adapter sleeve 8.
In actual use procedure, suppose with 10 meters of diameter 100mm degree of depth of anchoring drilling machine construction, 2 meters of expanding reach of the diameter 500mm degree of depth, the anchor hole of gradient 30 degree.
First with conventional bit, complete the hole of 10 meters of the diameter 100mm degree of depth, change again automatic expansion formula drill bit for a kind of rig, under drill bit during to 10 meters of degree of depth, drilling rod 1 rotates and screws the 3rd adapter sleeve 11, by the 3rd adapter sleeve 11 internal thread holes 30 and the externally threaded connection function of drilling rod 1, then by the effect of cutting ferrule 9, screw thread screws descending the first strut 4 and the second strut 6 of forcing of promotion the second adapter sleeve 8 and opens, as shown in Figure 2, final realization bored the anchor hole of making diameter 500mm.Easy to use and reliable.
More than describing is explanation of the invention, is not the restriction to invention, and limited range of the present invention, referring to claim, within protection scope of the present invention, can be done any type of modification.
Claims (8)
1. an automatic expansion formula drill bit for rig, it is characterized in that: comprise drilling rod (1), described drilling rod (1) one end cover has the first adapter sleeve (2), described drilling rod (1) rear end cover has the second adapter sleeve (8), be positioned at symmetrically arranged the first strut (4) and the second strut (6) are installed between the first adapter sleeve (2) and the second adapter sleeve (8), one end of described the first strut (4) is arranged on the first adapter sleeve (2) by the first connecting pin (3), the other end of described the first strut (4) is hinged by the second connecting pin (5) and the second strut (6) one end, described the second strut (6) other end is installed on the second adapter sleeve (8) by the 3rd connecting pin (7), described drilling rod (1) afterbody is provided with the 3rd adapter sleeve (11), and described the 3rd adapter sleeve (11) is fastening by cutting ferrule (9) and the second adapter sleeve (8), and described cutting ferrule (9) is by screw (10) locking.
2. automatic expansion formula drill bit for a kind of rig as claimed in claim 1, it is characterized in that: the structure of described drilling rod (1) is: comprise boring bar head (12), described boring bar head (12) middle part is extended with intermediate bar (13), upper the first adapter sleeve (2) of installing of described intermediate bar (13), described intermediate bar (13) afterbody is extended with the connecting rod (14) being connected with the 3rd adapter sleeve (11) with the second adapter sleeve (8), and the outer circumference surface of described connecting rod (14) is provided with external screw thread.
3. automatic expansion formula drill bit for a kind of rig as claimed in claim 1, it is characterized in that: described the first adapter sleeve (2) becomes short cylinder structure, its middle part has the first installing hole (16), on the periphery of described the first adapter sleeve (2) one end, has four cross the first pin-and-holes (15).
4. automatic expansion formula drill bit for a kind of rig as claimed in claim 1, it is characterized in that: the structure of described the first strut (4) is: comprise first body of rod (18), the two ends of described first body of rod (18) have the second pin-and-hole (17) and the 3rd pin-and-hole (20) that the first connecting pin (3) and the second connecting pin (5) are installed, and are interleaved and installed with a plurality of alloy columns (19) on described first body of rod (18).
5. automatic expansion formula drill bit for a kind of rig as claimed in claim 1, it is characterized in that: the structure of described the second strut (6) is: the body of rod (24) in the middle of comprising, in the middle of described, front end and the rear end of the body of rod (24) are respectively arranged with second body of rod (22), on described second body of rod (22), have the 4th pin-and-hole (21) that the second connecting pin (5) is installed, on the described middle body of rod (24), have the 5th pin-and-hole (23) that the 3rd connecting pin (7) is installed.
6. automatic expansion formula drill bit for a kind of rig as claimed in claim 1, it is characterized in that: described the second adapter sleeve (8) becomes short cylinder structure, its middle part has the second installing hole (27), on the periphery of described the second adapter sleeve (8) one end, have four crosss the 6th pin-and-hole (25), described the second adapter sleeve (8) other end end face has left half draw-in groove (26).
7. automatic expansion formula drill bit for a kind of rig as claimed in claim 1, it is characterized in that: the structure of described the 3rd adapter sleeve (11) is: described the 3rd one end, adapter sleeve (11) middle part is provided with the internal thread hole (30) being connected with drilling rod (1), the other end is provided with bellmouth (32), the end face of described the 3rd adapter sleeve (11) outer circumference surface is provided with right half draw-in groove (29), on described right half draw-in groove (29), have screw hole (28), described the 3rd adapter sleeve (11) outer circumference surface middle part has groove (31).
8. automatic expansion formula drill bit for a kind of rig as claimed in claim 1, is characterized in that: the structure of described cutting ferrule (9) is: described cutting ferrule (9) becomes hollow short cylinder structure, on described cutting ferrule (9) periphery, has a plurality of counterbores (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410236525.5A CN103982138A (en) | 2014-05-30 | 2014-05-30 | Automatic expanding drill for drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410236525.5A CN103982138A (en) | 2014-05-30 | 2014-05-30 | Automatic expanding drill for drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103982138A true CN103982138A (en) | 2014-08-13 |
Family
ID=51274284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410236525.5A Pending CN103982138A (en) | 2014-05-30 | 2014-05-30 | Automatic expanding drill for drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103982138A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481404A (en) * | 2014-10-15 | 2015-04-01 | 西南石油大学 | Supporting-rod two-blade large-diameter changing reaming tool |
| CN107939287A (en) * | 2017-12-28 | 2018-04-20 | 徐州徐工铁路装备有限公司 | A kind of drill jumbo lengthens push rod |
| CN108756758A (en) * | 2018-06-07 | 2018-11-06 | 兖州煤业股份有限公司 | A kind of gob side entry driving thin coal pillar strengthening construction Counterboring apparatus |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2312967Y (en) * | 1997-09-29 | 1999-04-07 | 靳宏湘 | Broaching-pile drilling machine |
| CN2458344Y (en) * | 2001-01-18 | 2001-11-07 | 北京市机械施工公司 | Positive and negative circulation wet-working mechanical type dual-purpose drilling device for drilling hole and reaming |
| JP2003035083A (en) * | 2001-07-25 | 2003-02-07 | Kawasaki Steel Corp | Excavating jig for foundation pile construction |
| JP2009041315A (en) * | 2007-08-10 | 2009-02-26 | Jfe Steel Kk | System for checking shape of foot protection bulb in foundation pile construction |
| CN202544751U (en) * | 2012-02-27 | 2012-11-21 | 无锡市安迈工程机械有限公司 | Expanding drill bit |
| CN203948028U (en) * | 2014-05-30 | 2014-11-19 | 无锡市安迈工程机械有限公司 | A kind of automatic expansion formula drill bit for rig |
-
2014
- 2014-05-30 CN CN201410236525.5A patent/CN103982138A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2312967Y (en) * | 1997-09-29 | 1999-04-07 | 靳宏湘 | Broaching-pile drilling machine |
| CN2458344Y (en) * | 2001-01-18 | 2001-11-07 | 北京市机械施工公司 | Positive and negative circulation wet-working mechanical type dual-purpose drilling device for drilling hole and reaming |
| JP2003035083A (en) * | 2001-07-25 | 2003-02-07 | Kawasaki Steel Corp | Excavating jig for foundation pile construction |
| JP2009041315A (en) * | 2007-08-10 | 2009-02-26 | Jfe Steel Kk | System for checking shape of foot protection bulb in foundation pile construction |
| CN202544751U (en) * | 2012-02-27 | 2012-11-21 | 无锡市安迈工程机械有限公司 | Expanding drill bit |
| CN203948028U (en) * | 2014-05-30 | 2014-11-19 | 无锡市安迈工程机械有限公司 | A kind of automatic expansion formula drill bit for rig |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481404A (en) * | 2014-10-15 | 2015-04-01 | 西南石油大学 | Supporting-rod two-blade large-diameter changing reaming tool |
| CN107939287A (en) * | 2017-12-28 | 2018-04-20 | 徐州徐工铁路装备有限公司 | A kind of drill jumbo lengthens push rod |
| CN107939287B (en) * | 2017-12-28 | 2023-11-10 | 徐州徐工铁路装备有限公司 | Lengthened push rod of drilling trolley |
| CN108756758A (en) * | 2018-06-07 | 2018-11-06 | 兖州煤业股份有限公司 | A kind of gob side entry driving thin coal pillar strengthening construction Counterboring apparatus |
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Application publication date: 20140813 |