CN105484690B - A kind of anti-piston effect rotary drilling digger - Google Patents
A kind of anti-piston effect rotary drilling digger Download PDFInfo
- Publication number
- CN105484690B CN105484690B CN201510884081.0A CN201510884081A CN105484690B CN 105484690 B CN105484690 B CN 105484690B CN 201510884081 A CN201510884081 A CN 201510884081A CN 105484690 B CN105484690 B CN 105484690B
- Authority
- CN
- China
- Prior art keywords
- bottom plate
- cylinder
- ventilation pipe
- movable floor
- fixed bottom
- 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.)
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Links
- 238000005553 drilling Methods 0.000 title claims abstract description 29
- 230000000694 effects Effects 0.000 title claims abstract description 20
- 238000009423 ventilation Methods 0.000 claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 2
- 239000002689 soil Substances 0.000 abstract description 9
- 235000019994 cava Nutrition 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B27/00—Containers for collecting or depositing substances in boreholes or wells, e.g. bailers, baskets or buckets for collecting mud or sand; Drill bits with means for collecting substances, e.g. valve drill bits
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of anti-piston effect rotary drilling digger, including being cylindrical in shape and the cylinder of lower end opening and the bottom deck assembly arranged on cylinder bottom, bottom deck assembly includes the fixation bottom plate and movable floor that can turn round predetermined angular relatively each other, a ventilation pipe is equipped with cylinder inboard wall, fixed bottom plate is equipped with the venthole to connect corresponding with ventilation pipe, movable floor is rotated to open or block the venthole on fixed bottom plate relative to fixed bottom plate, by setting ventilation pipe in cylinder, and the opening and closing of the ventilation pipe is controlled by movable floor, it can be effectively prevented from forming piston effect during rotary digging drilling, efficiently solve the problems, such as that soil layer caves in, improve hole quality, and then pile quality when improving filling concrete.
Description
Technical field
The present invention relates to auger drill of rotary drilling rig bucket technical field, more particularly to a kind of anti-piston effect rotary drilling digger.
Background technology
In recent years, rotary drilling rig is widely used in Pile Foundation, Bridge Pile construction operation, and rotary drilling rig makes
With the labor intensity for not only mitigating worker, while whole construction speed and quality are greatly enhanced.
But existing rotary drilling digger especially Double bottom drags for sand hopper during practice of construction there are piston effect at present,
Especially in mud construction, since bucket body outer wall is fitted closely with mud, bucket body and mud formation piston effect, are revolving
When digging drilling bucket lifting bucket body, drilling bucket is difficult to be lifted and since piston effect is soft mud inspiration bottom hole around bottom hole, causes hole
Soil layer caves in around bottom, have impact on the construction quality of spiral-digging pore, pile quality when have impact on filling concrete, and existing to constructing
Bring certain security risk in field.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of anti-work for effectively improving construction quality, reducing security risk
Fill in effect rotary drilling digger.
Technical solution used by solve above-mentioned technical problem：A kind of anti-piston effect rotary drilling digger, including be cylindrical in shape
And cylinder and the bottom deck assembly arranged on cylinder bottom of lower end opening, the bottom deck assembly includes each other can opposite revolution predetermined angle
The fixation bottom plate and movable floor of degree, are equipped with a ventilation pipe, the fixed bottom plate is equipped with and ventilation in the cylinder inboard wall
Pipeline corresponds to the venthole to connect, and the movable floor rotates logical on fixed bottom plate to open or block relative to fixed bottom plate
Stomata.
Further, the fixed bottom plate center is connected with movable floor centrally through axis pin, and the movable floor can
It is relatively fixed bottom plate and rotates 0 ° ~ 90 ° around axis pin.
Further, the fixed bottom plate is identical with movable floor size and Z-shape shape.
Further, cylinder bottom one side edge is hinged with fixed bottom plate, another lateral edges in cylinder bottom
Fastened with fixed bottom plate by latching.
Further, the ventilation pipe for the sealed steel pipe in cylinder or seals steel tank, the ventilation pipe
Sectional dimension be greater than or equal to venthole size.
Beneficial effect：In this anti-piston effect rotary drilling digger, by setting ventilation pipe in cylinder, and pass through dump bottom
Plate controls the opening and closing of the ventilation pipe, can be effectively prevented from forming piston effect during rotary digging drilling.When rotary drilling digger is crept into
When, movable floor is rotated to block venthole, and the earthwork can be avoided to enter in ventilation pipe and resulted in blockage；When rotary drilling digger is lifted
When, movable floor rotates backward, and movable floor no longer blocks the venthole on fixed bottom plate, and mud or air can be through ventilation pipes
Enter gap between bucket body and soil layer, to reduce piston effect, efficiently solve the problems, such as that soil layer caves in, improve hole quality,
And then pile quality when improving filling concrete.
Brief description of the drawings
The present invention is described further with reference to the accompanying drawings and examples；
Fig. 1 is the structure diagram that the embodiment of the present invention creeps into state；
Fig. 2 is to fix bottom plate and movable floor position view in drilling state of the embodiment of the present invention；
Fig. 3 is the structure diagram that the embodiment of the present invention lifts state；
Fig. 4 is to fix bottom plate and movable floor position view in lifting state of the embodiment of the present invention.
Embodiment
Referring to figs. 1 to Fig. 4, a kind of anti-piston effect rotary drilling digger of the present invention, including be cylindrical in shape and the cylinder 1 of lower end opening
With the bottom deck assembly arranged on 1 bottom of cylinder, bottom deck assembly includes each other can the opposite fixation bottom plate 2 for turning round predetermined angular and activity
Bottom plate 3, a ventilation pipe 4 is equipped with 1 inner wall of cylinder, and fixed bottom plate 2 is equipped with the venthole 5 to connect corresponding with ventilation pipe 4,
Movable floor 3 is rotated to open or block the venthole 5 on fixed bottom plate 2 relative to fixed bottom plate 2.
In the present embodiment, ventilation pipe 4 is the sealed steel pipe in cylinder 1 or sealing steel tank, and ventilation pipe 4 is cut
Face size is greater than or equal to the size of venthole 5, and 1 bottom one side edge of cylinder is hinged with fixed bottom plate 2 by an axis pin, cylinder
Another lateral edges in 1 bottom of body are then fastened with fixed bottom plate 2 by latching, and open lock, and fixed bottom plate 2 can be rotated relative to cylinder 1
0°~180°。
Wherein, fixed 2 center of bottom plate with 3 center of movable floor is connected by axis pin, 3 bottom of movable floor formed with
Bucket tooth, movable floor 3 can be relatively fixed bottom plate 2 and rotate 0 ° ~ 90 ° around axis pin, and the ventilation pipe 4 is controlled by movable floor 3
Opening and closing, can be effectively prevented from forming piston effect during rotary digging drilling.Specifically, drilling machine drilling rod rotates forward drive bucket
Tooth carries out cutting movement with lower section soil layer, and then drives movable floor 3 to rotate about 90 ° by the center of circle of axis pin, and movable floor 3 blocks
Firmly fix bottom plate 2 on venthole, prevent drilling when cubic metre of earth enter ventilation pipe 4 in result in blockage；Drilling machine drilling rod is reverse
Rotating, drive bucket tooth to carry out fricting movement with lower section soil layer so that movable floor 3 reversely goes back to about 90 ° using axis pin as the center of circle, this
When, movable floor 3 no longer blocks the venthole on fixed bottom plate 2, and mud or air can rapidly enter bottom plate by ventilation pipe 4
Component and lower section soil layer gap, do not re-form piston effect, therefore when drilling bucket is lifted, surrounding soil layer is due to mud herein
Slurry or air entrance can keep pressure balance, and soil layer caves in reduction, be effectively improved the matter of pore-forming and filling concrete pile
Amount.
Preferably, fixed bottom plate 2 is identical with 3 size of movable floor and Z-shape shape.
Embodiments of the present invention are explained in detail above in conjunction with attached drawing, but the invention is not restricted to above-mentioned embodiment party
Formula, can also be before present inventive concept not be departed from the knowledge that the technical field those of ordinary skill possesses
Put that various changes can be made.
Claims (3)
1. a kind of anti-piston effect rotary drilling digger, it is characterised in that including being cylindrical in shape and the cylinder of lower end opening and arranged on cylinder
The bottom deck assembly of bottom, the bottom deck assembly include the fixation bottom plate and movable floor that can turn round predetermined angular relatively each other,
The cylinder inboard wall is equipped with a ventilation pipe, and the fixed bottom plate is equipped with the venthole to connect corresponding with ventilation pipe, described
Movable floor is rotated to open or block the venthole on fixed bottom plate, the fixed bottom plate center and work relative to fixed bottom plate
Dynamic bottom plate is connected centrally through axis pin, and the movable floor can be relatively fixed bottom plate and rotate 0 °~90 ° around axis pin, the fixation
Bottom plate is identical with movable floor size and Z-shape shape.
2. anti-piston effect rotary drilling digger according to claim 1, it is characterised in that：Cylinder bottom one side edge with
Fixed bottom plate is hinged, and another lateral edges in cylinder bottom are fastened with fixed bottom plate by latching.
3. anti-piston effect rotary drilling digger according to claim 1, it is characterised in that：The ventilation pipe is installed in cylinder
Internal sealed steel pipe or sealing steel tank, the sectional dimension of the ventilation pipe are greater than or equal to the size of venthole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510884081.0A CN105484690B (en) | 2015-12-02 | 2015-12-02 | A kind of anti-piston effect rotary drilling digger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510884081.0A CN105484690B (en) | 2015-12-02 | 2015-12-02 | A kind of anti-piston effect rotary drilling digger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105484690A CN105484690A (en) | 2016-04-13 |
| CN105484690B true CN105484690B (en) | 2018-05-04 |
Family
ID=55671935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510884081.0A Active CN105484690B (en) | 2015-12-02 | 2015-12-02 | A kind of anti-piston effect rotary drilling digger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105484690B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712248B (en) * | 2015-03-10 | 2017-01-11 | 湘潭中威重工有限公司 | Barrel plane type suction-preventing rotary excavating drilling bucket |
| CN109915027A (en) * | 2019-04-04 | 2019-06-21 | 河北建设勘察研究院有限公司 | A kind of drilling bit of rotary-digging drilling rig preventing Borehole Diameter in soft modeling stratum |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2530531A1 (en) * | 1975-07-09 | 1977-01-27 | Salzgitter Maschinen Ag | Rotary ground drill tool - has drilling bucket with baseplate closure controlled by kelly bar and pulled for emptying |
| CN101382050A (en) * | 2008-08-18 | 2009-03-11 | 山河建设集团有限公司 | Hydraulic salvage method for door of bucket of rotary drill rig |
| CN202510072U (en) * | 2012-03-14 | 2012-10-31 | 北京市三一重机有限公司 | Drilling tool and rotary drilling rig with same |
| CN103089145A (en) * | 2013-02-06 | 2013-05-08 | 上海中联重科桩工机械有限公司 | Down-the-hole hammer power head of rotary drilling rig and rotary drilling rig |
| US8615906B2 (en) * | 2012-04-16 | 2013-12-31 | Pengo Corporation | Drilling bucket |
| CN104712248A (en) * | 2015-03-10 | 2015-06-17 | 湘潭中威重工有限公司 | Barrel plane type suction-preventing rotary excavating drilling bucket |
| CN204492730U (en) * | 2014-12-25 | 2015-07-22 | 河南省三力机械制造有限公司 | A kind of rotary drilling rig and drilling bucket fishing device thereof |
| CN204782727U (en) * | 2015-03-10 | 2015-11-18 | 湘潭中威重工有限公司 | Barrel plane formula is prevented inhaling and is dug drilling bucket soon |
-
2015
- 2015-12-02 CN CN201510884081.0A patent/CN105484690B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2530531A1 (en) * | 1975-07-09 | 1977-01-27 | Salzgitter Maschinen Ag | Rotary ground drill tool - has drilling bucket with baseplate closure controlled by kelly bar and pulled for emptying |
| CN101382050A (en) * | 2008-08-18 | 2009-03-11 | 山河建设集团有限公司 | Hydraulic salvage method for door of bucket of rotary drill rig |
| CN202510072U (en) * | 2012-03-14 | 2012-10-31 | 北京市三一重机有限公司 | Drilling tool and rotary drilling rig with same |
| US8615906B2 (en) * | 2012-04-16 | 2013-12-31 | Pengo Corporation | Drilling bucket |
| CN103089145A (en) * | 2013-02-06 | 2013-05-08 | 上海中联重科桩工机械有限公司 | Down-the-hole hammer power head of rotary drilling rig and rotary drilling rig |
| CN204492730U (en) * | 2014-12-25 | 2015-07-22 | 河南省三力机械制造有限公司 | A kind of rotary drilling rig and drilling bucket fishing device thereof |
| CN104712248A (en) * | 2015-03-10 | 2015-06-17 | 湘潭中威重工有限公司 | Barrel plane type suction-preventing rotary excavating drilling bucket |
| CN204782727U (en) * | 2015-03-10 | 2015-11-18 | 湘潭中威重工有限公司 | Barrel plane formula is prevented inhaling and is dug drilling bucket soon |
Non-Patent Citations (1)
| Title |
|---|
| 旋挖钻斗结构的探讨;吴允成;《探矿工程》;20000325(第2期);第28、31页，图5-6 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105484690A (en) | 2016-04-13 |
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