CN105156034A - Drill bit - Google Patents

Drill bit Download PDF

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Publication number
CN105156034A
CN105156034A CN201510579699.6A CN201510579699A CN105156034A CN 105156034 A CN105156034 A CN 105156034A CN 201510579699 A CN201510579699 A CN 201510579699A CN 105156034 A CN105156034 A CN 105156034A
Authority
CN
China
Prior art keywords
mandrel
drill bit
drill
cylinder
tongue
Prior art date
Application number
CN201510579699.6A
Other languages
Chinese (zh)
Inventor
陈凤钢
戴斌安
倪万兵
程熙
石姚姚
Original Assignee
江苏谷登工程机械装备有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to CN201410805016.XA priority Critical patent/CN104499945A/en
Priority to CN201410805016X priority
Application filed by 江苏谷登工程机械装备有限公司 filed Critical 江苏谷登工程机械装备有限公司
Priority to CN201510579699.6A priority patent/CN105156034A/en
Publication of CN105156034A publication Critical patent/CN105156034A/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/28—Enlarging drilled holes, e.g. by counterboring
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/20—Placing by pressure or pulling power
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
    • E21B10/322—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools cutter shifted by fluid pressure

Abstract

The invention provides a drill bit. The drill bit comprises a cylinder body, a mandrel, drill arms, connecting rod drill arms and a guiding drill bit, wherein the mandrel penetrates the cylinder body; one end of the mandrel is fixedly provided with the guiding drill bit; the guiding drill bit is connected with the cylinder body through the connecting rod drill arms and the drill arms; the mandrel is connected with a mandrel moving mechanism; and the mandrel moving mechanism drives the mandrel to move to further enable the drill arms to expand and gather. The drill bit has the characteristics that the contraction angle adjustment range is wide, the stress is uniform, the structural strength is high, and the structure is simple, can meet various demands on drilling and broaching, and can satisfy the requirement that a big hole is drilled after a small hole is drilled in the required depth. When a static pile driver equipped with the drill bit is in use, in case of difficult pile pressing, the drill bit can enter from the inner hole of a pile to perform drilling and broaching, so that the traditional static pile driver can be applied to occasions where pile pressing is difficult, and accordingly, the application range of the static pile driver is enlarged.

Description

Drill bit

Technical field

The present invention relates to static pile press reaming pile sinking technology field, be specifically related to a kind of drill bit of pile sinking staving press.

Background technology

Existing pile press has static pile press, hammer type pile press and spiral to water stake machine, traditional static pile press is to geological stratification piling difficulties such as sand bed, hardpan, differentiation layers, even under some geology, traditional static pile press cannot carry out piling work, and the damage degree of static pile press to geological stratification pilings such as sand bed, hardpan, differentiation layers is very high.Spiral waters the stake formed and also there is many shortcomings, as: intensity, the hardness of spiral pouring stake are good all not, and the spiral pouring stake formation cycle is long.

When traditional static pile press is constructed, the downward silent piling of direct pile holding, does not hole, reaming, and its shortcoming is: to the soil layer piling difficulty of sand bed, hardpan, differentiation layer and some not easily pilings, even under some geological conditions, traditional static pile press cannot carry out piling work.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of drill bit, and this reaming bit can be entered by stake endoporus at need in static pile press piling and carry out holing and ream operation, expands the scope of application of static pile press.

For solving the problems of the technologies described above, the invention provides a kind of drill bit, comprise cylinder body, mandrel, drill boom, connecting rod drill boom and guide's drill bit, described mandrel is through described cylinder body, one end of described mandrel is fixed with described guide's drill bit, and described guide's drill bit is connected with described cylinder body by described connecting rod drill boom and described drill boom, and described mandrel is connected with mandrel travel mechanism, described mandrel travel mechanism promotes the motion of described mandrel, and and then described drill boom is opened and gathering.

As a preferred embodiment of the present invention, described mandrel travel mechanism comprises water vat bar and rodless cavity, described water vat bar is slidably fitted between described cylinder body and described mandrel, described rodless cavity is between described water vat bar and described cylinder body, described water vat bar is provided with the interlock screw driving described mandrel movement, described rodless cavity communicates with outer water channel.

As a preferred embodiment of the present invention, described mandrel is provided with keyway, described interlock screw is slidably fitted in described keyway.

As a preferred embodiment of the present invention, described cylinder body is provided with tongue and compresses the tongue back-moving spring of described tongue, described water vat bar is provided with the cammed surface of agreeing with mutually with described tongue.

As a preferred embodiment of the present invention, described tongue is provided with a step surface, and described mandrel is engaged with described tongue by this step surface.

As a preferred embodiment of the present invention, the other end of described mandrel is fixed with interior connector, described cylinder body is fixed with the outer connector around described interior connector, forms annular space between described outer connector and described interior connector.

Compared with prior art, it is large that the present invention has converging angles scope of compromise, stressed equal power, and structural strength is large, and the simple feature of structure, can meet the requirement of various boring, reaming, can complete first aperture after arrival requires the degree of depth, then bore the requirement of macropore.Static pile press of the present invention is installed, can be entered by stake endoporus at need in piling and carry out holing and ream operation, make traditional silent piling function be applied in the occasion of not easily piling, expand the scope of application of static pile press.

Accompanying drawing explanation

In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.Wherein,

Fig. 1 is structural representation of the present invention.

Fig. 2 is the structural representation of the double-wall drill pipe in the present invention.

Fig. 3 is operating principle schematic diagram of the present invention.

In figure, comprise outer connector 1, interior connector 2, mandrel 3, tongue back-moving spring 4, tongue 5, interlock screw 6, drill boom 7, water vat bar 8, cylinder body 9, connecting rod drill boom 10, guide's drill bit 11, rodless cavity 12, outer bar 14, interior bar 15, outer water channel 16, water under high pressure 17.

Detailed description of the invention

For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, and below in conjunction with detailed description of the invention, the present invention is further detailed explanation.

First, alleged herein " embodiment " or " embodiment " refers to special characteristic, structure or the characteristic that can be contained at least one implementation of the present invention.Different local in this manual " in one embodiment " occurred not all refers to same embodiment, neither be independent or optionally mutually exclusive with other embodiments embodiment.

Secondly, the present invention utilizes structural representation etc. to be described in detail, when describing the embodiment of the present invention in detail; for ease of explanation; represent that the schematic diagram of drill bit structure can be disobeyed general ratio and be made partial enlargement, and described schematic diagram is example, it should not limit the scope of protection of the invention at this.In addition, the three dimensions of length, width and the degree of depth should be comprised in actual fabrication.

Refer to Fig. 1, a kind of drill bit of the present invention, comprise cylinder body 9, mandrel 3, drill boom 7, connecting rod drill boom 10 and guide's drill bit 11, mandrel 3 is through cylinder body 9, one end of mandrel 3 is fixed with guide's drill bit 11, and guide's drill bit 11 is connected with cylinder body 9 by connecting rod drill boom 10 and drill boom 7, and mandrel 3 is connected with mandrel travel mechanism, mandrel travel mechanism promotes mandrel 3 and moves, and and then drill boom 7 is opened and gathering.

Mandrel travel mechanism can adopt the various mode such as hydraulic pressure, oil pressure, machinery, electronic, air pressure, and the most frequently used is adopt water under high pressure.

The mandrel travel mechanism of water under high pressure is adopted to comprise water vat bar 8 and rodless cavity 12, water vat bar 8 is slidably fitted between cylinder body 9 and mandrel 3, rodless cavity 12 is between water vat bar 8 and cylinder body 9, water vat bar 8 is provided with the interlock screw 6 of band moving mandrel 3 movement, rodless cavity 12 communicates (see Fig. 3) with outer water channel 16.Mandrel 3 is provided with keyway, and interlock screw 6 is slidably fitted in keyway.

In order to lock drill bit, cylinder body 9 being provided with the tongue back-moving spring 4 of tongue 5 and compression tongue 5, water vat bar 8 being provided with the cammed surface of agreeing with mutually with tongue 5.Tongue 5 is provided with a step surface, and mandrel 3 is engaged with tongue 5 by this step surface.

The other end of mandrel 3 is fixed with interior connector 2, cylinder body 9 is fixed with the outer connector 1 around interior connector 2, forms annular space between outer connector 1 and interior connector 2.Outer connector 1 and interior connector 2 are connected with interior bar 15 with the outer bar 14 of double-wall drill pipe respectively.

Operating principle of the present invention is as follows:

Drill bit is opened:

As shown in Figure 3, that be connected with drill bit is double-wall drill pipe (see Fig. 2), water under high pressure 17 enters drill bit from the annular space of double-wall drill pipe (i.e. the outer bar 14 of double-wall drill pipe formed with interior bar 15 annular gap), the outer water channel 16 entering drill bit by outer connector 1 and the annular space of interior connector 2 enters the rodless cavity 12 in Fig. 1, promote water vat bar 8 to be moved to the left, water vat bar 8 promotes tongue 5 by the cammed surface of agreeing with mutually with tongue 5 and moves upward, tongue 5 is provided with a step surface, mandrel 3 is engaged with tongue 5 by this step surface, after tongue 5 moves up to and is separated with mandrel 3, water vat bar 8 continues to push ahead to interlock screw 6 and withstands mandrel 3, then band moving mandrel 3 is continued to left movement.Mandrel 3 is provided with a keyway, interlock screw 6 can slidably reciprocate in this keyway.Now mandrel 3 low order end is connected with guide's drill bit 11, guide's drill bit 11 and connecting rod drill boom 10, connecting rod drill boom 10 is connected with drill boom 7, so guide's drill bit 11 will be driven when mandrel 3 is moved to the left to be moved to the left, thus drill boom 7 and connecting rod drill boom 10 are expanded outwardly, now drill bit is exactly open mode.

Drill bit draws in:

As shown in Figure 3, double-wall drill pipe is ined succession drill bit, (now the rodless cavity 12 of outer water channel 16 is cancelled) water under high pressure 17 enters into by the centre bore of bar 15 on double-wall drill pipe the enclosure space that interior connector 2 formed with interior bar 15, and produce pressure, interior connector 2 is moved right, the mandrel 3 be threaded with interior connector 2 also together with move right, because water vat bar 8 and mandrel 3 are fixed by the screw 6 that links, water vat bar 8 also moves right, guide's drill bit 11 that mandrel 3 drives low order end to connect simultaneously moves right, so the drill boom 7 be connected with guide's drill bit 11, connecting rod drill boom 10 is also regained, because rodless cavity 12 pressure of at this time outer water channel 16 is cancelled, water vat bar 8 also moves right, water vat bar 8 is fixed by the screw 6 that links with mandrel 3, mandrel 3 also moves right, when water vat bar 8 exits tongue 5 position, tongue 5 is closed by tongue back-moving spring 4, mandrel 3 cannot be moved to the left, drill bit draws in and pins, in order to avoid drill bit is opened by mistake.

What the those of ordinary skill in affiliated field should be understood that is, one of feature of the present invention or object are: a kind of drill bit of the present invention, there is converging angles scope of compromise large, stressed equal power, structural strength is large, and the simple feature of structure, can meet the requirement of various boring, reaming, first aperture can be completed after arrival requires the degree of depth, then bore the requirement of macropore.Static pile press of the present invention is installed, can be entered by stake endoporus at need in piling and carry out holing and ream operation, make traditional silent piling function be applied in the occasion of not easily piling, expand the scope of application of static pile press.

It should be noted that, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.

Claims (6)

1. a drill bit, it is characterized in that: comprise cylinder body, mandrel, drill boom, connecting rod drill boom and guide's drill bit, described mandrel is through described cylinder body, one end of described mandrel is fixed with described guide's drill bit, described guide's drill bit is connected with described cylinder body by described connecting rod drill boom and described drill boom, described mandrel is connected with mandrel travel mechanism, and described mandrel travel mechanism promotes the motion of described mandrel, and and then described drill boom is opened and gathering.
2. according to drill bit according to claim 1, it is characterized in that: described mandrel travel mechanism comprises water vat bar and rodless cavity, described water vat bar is slidably fitted between described cylinder body and described mandrel, described rodless cavity is between described water vat bar and described cylinder body, described water vat bar is provided with the interlock screw driving described mandrel movement, described rodless cavity communicates with outer water channel.
3. according to drill bit according to claim 2, it is characterized in that: described mandrel is provided with keyway, described interlock screw is slidably fitted in described keyway.
4. according to drill bit according to claim 2, it is characterized in that: described cylinder body is provided with tongue and compresses the tongue back-moving spring of described tongue, described water vat bar is provided with the cammed surface of agreeing with mutually with described tongue.
5. according to drill bit according to claim 2, it is characterized in that: described tongue is provided with a step surface, described mandrel is engaged with described tongue by this step surface.
6. according to drill bit according to claim 2, it is characterized in that: the other end of described mandrel is fixed with interior connector, described cylinder body is fixed with the outer connector around described interior connector, between described outer connector and described interior connector, form annular space.
CN201510579699.6A 2014-12-22 2015-09-11 Drill bit CN105156034A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201410805016.XA CN104499945A (en) 2014-12-22 2014-12-22 Static pile driver and reaming and pile sinking machine combination
CN201410805016X 2014-12-22
CN201510579699.6A CN105156034A (en) 2014-12-22 2015-09-11 Drill bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510579699.6A CN105156034A (en) 2014-12-22 2015-09-11 Drill bit

Publications (1)

Publication Number Publication Date
CN105156034A true CN105156034A (en) 2015-12-16

Family

ID=52941386

Family Applications (7)

Application Number Title Priority Date Filing Date
CN201410805016.XA CN104499945A (en) 2014-12-22 2014-12-22 Static pile driver and reaming and pile sinking machine combination
CN201510361729.6A CN104912076B (en) 2014-12-22 2015-06-26 A static pile press complete machine is planted in a kind of reaming
CN201510363355.1A CN104929123B (en) 2014-12-22 2015-06-26 A kind of pile sinking staving press
CN201520449592.5U CN204753589U (en) 2014-12-22 2015-06-26 A static pressure stake machine complete machine is planted in reaming
CN201510579699.6A CN105156034A (en) 2014-12-22 2015-09-11 Drill bit
CN201510575208.0A CN105178861A (en) 2014-12-22 2015-09-11 Drilling hole enlarging mechanism
CN201520703601.9U CN205225081U (en) 2014-12-22 2015-09-11 Drill

Family Applications Before (4)

Application Number Title Priority Date Filing Date
CN201410805016.XA CN104499945A (en) 2014-12-22 2014-12-22 Static pile driver and reaming and pile sinking machine combination
CN201510361729.6A CN104912076B (en) 2014-12-22 2015-06-26 A static pile press complete machine is planted in a kind of reaming
CN201510363355.1A CN104929123B (en) 2014-12-22 2015-06-26 A kind of pile sinking staving press
CN201520449592.5U CN204753589U (en) 2014-12-22 2015-06-26 A static pressure stake machine complete machine is planted in reaming

Family Applications After (2)

Application Number Title Priority Date Filing Date
CN201510575208.0A CN105178861A (en) 2014-12-22 2015-09-11 Drilling hole enlarging mechanism
CN201520703601.9U CN205225081U (en) 2014-12-22 2015-09-11 Drill

Country Status (1)

Country Link
CN (7) CN104499945A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104499945A (en) * 2014-12-22 2015-04-08 江苏谷登工程机械装备有限公司 Static pile driver and reaming and pile sinking machine combination
CN104912501A (en) * 2015-06-30 2015-09-16 江苏谷登工程机械装备有限公司 Rod-feeding mechanism for drill rod
CN104989275A (en) * 2015-07-10 2015-10-21 无锡中地钻探装备有限公司 Horizontal directional drilling machine with double drill pipes
CN105714824B (en) * 2016-02-04 2017-12-01 江苏谷登工程机械装备有限公司 A kind of pile press machine and its pile pressing method
CN105756060A (en) * 2016-04-08 2016-07-13 徐玉杰 Mixing pile machine with drill pipes being automatically connected
CN106337660B (en) * 2016-11-01 2019-12-31 周兆弟 Double-holding-pressure power underneath pile driver

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CN104499945A (en) * 2014-12-22 2015-04-08 江苏谷登工程机械装备有限公司 Static pile driver and reaming and pile sinking machine combination
CN104499946A (en) * 2014-12-22 2015-04-08 江苏谷登工程机械装备有限公司 Umbrella reamer bit assembly
CN104948113A (en) * 2015-06-26 2015-09-30 江苏谷登工程机械装备有限公司 Drill bit

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CN204849765U (en) * 2015-06-26 2015-12-09 江苏谷登工程机械装备有限公司 Pile sinking reamer
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Publication number Priority date Publication date Assignee Title
CN104499945A (en) * 2014-12-22 2015-04-08 江苏谷登工程机械装备有限公司 Static pile driver and reaming and pile sinking machine combination
CN104499946A (en) * 2014-12-22 2015-04-08 江苏谷登工程机械装备有限公司 Umbrella reamer bit assembly
CN205225081U (en) * 2014-12-22 2016-05-11 江苏谷登工程机械装备有限公司 Drill
CN104948113A (en) * 2015-06-26 2015-09-30 江苏谷登工程机械装备有限公司 Drill bit

Also Published As

Publication number Publication date
CN205225081U (en) 2016-05-11
CN104912076A (en) 2015-09-16
CN105178861A (en) 2015-12-23
CN104499945A (en) 2015-04-08
CN104912076B (en) 2016-10-26
CN104929123B (en) 2016-11-16
CN204753589U (en) 2015-11-11
CN104929123A (en) 2015-09-23

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Application publication date: 20151216