CN109763773A - A kind of mechanical reaming bit of foundation engineering - Google Patents
A kind of mechanical reaming bit of foundation engineering Download PDFInfo
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- CN109763773A CN109763773A CN201910128567.XA CN201910128567A CN109763773A CN 109763773 A CN109763773 A CN 109763773A CN 201910128567 A CN201910128567 A CN 201910128567A CN 109763773 A CN109763773 A CN 109763773A
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- drill body
- wing
- location hook
- hinged
- foundation engineering
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- 238000005520 cutting process Methods 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 11
- 238000007569 slipcasting Methods 0.000 claims abstract description 8
- 238000011065 in-situ storage Methods 0.000 claims description 5
- 229920002472 Starch Polymers 0.000 claims 1
- 235000019698 starch Nutrition 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 17
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000005553 drilling Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The invention discloses a kind of mechanical reaming bits of foundation engineering, the upper end of its drill body is connected with tool joint, its lower end is provided with the first cutting body, slip casting channel is axially provided in drill body, an expansion wing is hinged on drill body, the lower end for expanding the wing is provided with the second cutting body, is provided with lower position block and upper limit position block on drill body；The top of drill body is equipped with stretching monitor control mechanism, stretching monitor control mechanism includes top shoe, metal pull bar, connecting rod and location hook, top shoe is snug fit at drill body top, metal pull bar is fixed on the upper surface of top shoe, one end of connecting rod is hinged with top shoe, the other end is hinged with location hook, and location hook is articulated on drill body, and the upper end for expanding the wing is provided with upper protruding block.The advantage is that: structure is simple, construction precision is high, it can be ensured that reaming size, construction efficiency is high, and use, maintenance cost are low.
Description
Technical field
The present invention relates to a kind of reaming bit, a kind of especially mechanical reaming bit of foundation engineering；Be mainly used for work,
Civil buildings, bridge, municipal administration and Other Engineering basic engineering construction, be the ancillary equipment of rotary drilling rig in infrastructure device.
Background technique
In recent ten years, with the large-scale infrastructure in China, pile foundation is in industry and civil buildings, harbour, railway
And the application in the foundation engineering of the engineerings such as bridge also more comes also extensively.Since (such as cast-in-situ bored pile, implanted is pre- for non-Squeezing Soil Pile
Stake processed etc.) have many advantages, such as that equipment is simple, without friction, noiseless, project cost is low and to surrounding soil without lateral compression, in base
It is used widely in plinth engineering.Because of isometrical pile bearing capacity relative deviation, also largely adopted in the work progress of non-Squeezing Soil Pile
With shaped piles such as various club-footed piles, support disk pile, X-shaped stake, bamboo joint piles, therefore chambering process will necessarily be related in work progress.
Currently, the reaming mode for commonly using reamer in foundation engineering is generally divided into fluid pressure type reaming and mechanical reaming.Liquid
Pressure type reaming be using it is hydraulic extension oil cylinder realize reaming and gathering purpose, reaming oil cylinder generally arrange with drilling rod outside or
In inner cavity, but no matter which kind of mode is used, hydraulic extension oil cylinder can be in substances such as compressed air, mud in reaming procedure
Erosion among, to extension oil cylinder machining accuracy and sealing requirements it is very high, which increase its manufacture and equipment difficulty；Simultaneously
Require also construction environment more strictly, the feelings that seal fails cause hydraulic system fault easily occur in use
Condition, there are fault ratio of hydraulic pressure system height, hydraulic oil waste is serious, the problems such as influencing construction speed, increase construction cost.And it is mechanical
Formula reaming is usually to open the reaming wing from gravity or other external force by with when boring under drilling rod, then received by bar thick stick principle
Hold together, but this kind of reaming mode has that construction precision is low, reaming size not can guarantee.Therefore, it is necessary to develop a kind of structure
Simply, construction precision is high, can ensure that reaming size, the machinery that construction efficiency is high, construction quality is controllable, use and maintenance cost are low
Formula reaming bit.
Summary of the invention
It is simple that the technical problem to be solved by the invention for the present situation of prior art is to provide structures, and construction precision is high,
It can ensure reaming size, construction efficiency is high, a kind of mechanical reaming bit of the low foundation engineering of use, maintenance cost.
The technical scheme of the invention to solve the technical problem is:
A kind of mechanical reaming bit of foundation engineering, includes drill body, and the upper end of drill body is connected with tool joint,
Its lower end is provided with the first cutting body, and slip casting channel is axially provided in drill body, and an expansion wing is hinged on drill body,
The lower end for expanding the wing is provided with the second cutting body, and being provided on drill body makes to expand the lower limit that the wing keeps in situ when drill bit rotates forward
Limitation expands the upper limit position block of the wing open angle when position block and drill bit invert；The top of drill body is equipped with stretching monitoring equipment
Structure, stretching monitor control mechanism includes top shoe, metal pull bar, connecting rod and location hook, and top shoe is snug fit at drill bit sheet
Body top, metal pull bar are fixed on the upper surface of top shoe, and one end and the top shoe of connecting rod are hinged, the other end and location hook
It is hinged, location hook is articulated on drill body, and the upper end for expanding the wing is provided with the upper protruding block matched with the location hook.
The technical measures of optimization further include:
Anti-fall mechanism is provided on above-mentioned drill body, anti-fall mechanism includes the spring and spacing ball being placed in assembly cavity,
The opening of assembly cavity is covered with cover board, and spacing ball stretches out the surface of the cover board；Expand and is provided with and the limit on the inside of the wing
The compatible limiting slot of position ball.
Above-mentioned cover board is mutually fixed by screw with drill body.
The L-shaped structure of above-mentioned location hook, the lower end of location hook are formed with crook.
The top of above-mentioned upper protruding block is provided with flare skewback.
The lower surface of above-mentioned top shoe is convexly equipped with attachment base, and the upper end of connecting rod is hinged with the attachment base.
Above-mentioned location hook is hinged by location hook pin shaft and the drill body.
The top of the above-mentioned expansion wing is hinged by expanding wing pin shaft with the drill body.
The lower end in above-mentioned slip casting channel is provided with anti-blocking gasket.
A kind of mechanical reaming bit of foundation engineering of the invention, structure is simple, and when drilling operation, drill bit is rotated forward, by
In the obstruction of lower position block, expand the wing and remain in situ, when ream operation, drill bit reversion expands the wing and opens to upper limit
Block position guarantees accurate reaming, and the switching between drilling and reaming is realized by the difference of steering, can greatly improve construction
Efficiency；This mechanical reaming bit is additionally provided with stretching monitor control mechanism, expands the opening feelings of the wing by stretching monitor control mechanism reaction
Condition, and the metal pull bar by extending to ground is monitored, and can effectively improve construction quality.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the portion A enlarged drawing in Fig. 1；
Fig. 3 is the structural schematic diagram when present invention expands wing opening；
Fig. 4 is the structural schematic diagram of the anti-fall mechanism of the present invention.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
It is as shown in Figures 1 to 4 structural schematic diagram of the invention,
Appended drawing reference therein are as follows: drill body 1, slip casting channel 1a, anti-blocking gasket 1b, tool joint 11, the first cutting body 12,
Expand the wing 2, limiting slot 2a, the second cutting body 21, upper protruding block 22, flare skewback 22a, expand wing pin shaft 23, lower position block 31, on
Limited block 32, top shoe 41, attachment base 41a, metal pull bar 42, connecting rod 43, location hook 44, crook 44a, location hook pin shaft
44b, anti-fall mechanism 5, assembly cavity 5a, spring 51, spacing ball 52, cover board 53, screw 54.
As shown in Figures 1 to 4,
A kind of mechanical reaming bit of foundation engineering, includes drill body 1, and the upper end of drill body 1 is connected with drilling rod connecting
First 11, lower end is provided with the first cutting body 12, is axially provided with slip casting channel 1a in drill body 1, hinged on drill body 1
There is an expansion wing 2, the lower end for expanding the wing 2 is provided with the second cutting body 21, and being provided with when drill bit rotates forward on drill body 1 makes to expand
Limitation expands the upper limit position block 32 of 2 open angle of the wing when wing 2 keeps lower position block 31 and drill bit in situ to invert；Drill body 1
Top be equipped with stretching monitor control mechanism, stretching monitor control mechanism includes top shoe 41, metal pull bar 42, connecting rod 43 and fixed
Position hook 44, top shoe 41 are snug fit at 1 top of drill body, and metal pull bar 42 is fixed on the upper surface of top shoe 41, connection
One end of bar 43 is hinged with top shoe 41, and the other end is hinged with location hook 44, and location hook 44 is articulated on drill body 1,
The upper end for expanding the wing 2 is provided with the upper protruding block 22 matched with the location hook 44.
First cutting body 12 and the second cutting body 21 are all made of hard alloy and are made.
In embodiment, anti-fall mechanism 5 is provided on drill body 1, anti-fall mechanism 5 includes the bullet being placed in assembly cavity 5a
Spring 51 and spacing ball 52, the opening of assembly cavity 5a are covered with cover board 53, and spacing ball 52 stretches out the surface of the cover board 53；Expand
The inside of the wing 2 is provided with limiting slot 2a compatible with the spacing ball 52.
In embodiment, cover board 53 is fixed by screw 54 and 1 phase of drill body.
When expanding the opening of the wing 2, the spacing ball 52 of anti-fall mechanism 5 is caught in the limiting slot 2a for expanding the wing 2, can be kept away in this way
Exempt to expand the wing 2 caused by influencing because the external force such as vibrating, collide during ream operation and fall suddenly, both ensure that construction matter
Amount, and a kind of protection to equipment.
In embodiment, the L-shaped structure of location hook 44, the lower end of location hook 44 is formed with crook 44a.
In embodiment, the top of upper protruding block 22 is provided with flare skewback 22a.
When expanding the opening of the wing 2, the location hook 44 for stretching monitor control mechanism is needed around location hook pin shaft 44b rotation and upper protruding block
22 form contact, and at this moment, the crook 44a of location hook 44 is inclined；The setting of flare skewback 22a can guarantee to expand
It when the wing 2 is opened, is formed between upper protruding block 22 and location hook 44 and is effectively contacted, guarantee the validity for stretching monitor control mechanism.
In embodiment, the lower surface of top shoe 41 is convexly equipped with attachment base 41a, the upper end of connecting rod 43 and the attachment base
41a is hinged.
In embodiment, location hook 44 is hinged by location hook pin shaft 44b with the drill body 1.
In embodiment, the top for expanding the wing 2 is hinged by expanding wing pin shaft 23 with the drill body 1.
In embodiment, the lower end of slip casting channel 1a is provided with anti-blocking gasket 1b.Anti-blocking gasket 1b can reduce slip casting channel
The occurrence probability of 1a blocking, improves construction efficiency.
Working principle:
When drilling operation, drilling machine rotates forward that drill bit is driven to rotate in the forward direction, and due to the limitation of lower position block 31, expands the wing 2 always
It keeps home position (as shown in Figure 1)；When ream operation, to drive drill bit to reversely rotate, drill bit is reversely rotated for drilling machine reversion
In the process, since the frictional resistance of the soil body and the expansion wing 2 is gradually opened the expansion wing 2 to upper limit, i.e. the expansion wing 2 and upper limit
Block 32 offsets, and the opening radius at this moment expanding the wing 2 is reaming radius.
When expanding the opening of the wing 2, the limiting slot 2a expanded on the wing 2 is overlapped with the spacing ball 52 of anti-fall mechanism 5, and spacing ball 52 is fallen into
Enter and realize positioning in limiting slot 2a, anti-fall mechanism 5 avoids during ream operation because vibrating, colliding etc. caused by external force influence
Expand the wing 2 to fall suddenly, both ensure that construction quality, and a kind of protection to equipment.
In addition, passing through the operation to monitor control mechanism is stretched when ream operation: extending to the metal pull bar on ground by pulling
42, it drives top shoe 41 to slide, and then drive location hook 44 to rotate around location hook pin shaft 44b by connecting rod 43, makes location hook
44 contact with the upper protruding block 22 for expanding the wing 2；React the opening situation for expanding the wing 2 indirectly by the stroke variation of top shoe 41,
It realizes to the complete monitoring for expanding the expansion situation of the wing 2, it is ensured that reaming size improves reaming precision.
Highly preferred embodiment of the present invention has illustrated, and the various change or remodeling made by those of ordinary skill in the art are not
It can depart from the scope of the present invention.
Claims (9)
1. a kind of mechanical reaming bit of foundation engineering includes drill body (1), the upper end of the drill body (1)
It is connected with tool joint (11), lower end is provided with the first cutting body (12), and the drill body is axially provided with note in (1)
It starches channel (1a), it is characterized in that: an expansion wing (2) is hinged on the drill body (1), under the expansion wing (2)
End is provided with the second cutting body (21), and being provided with when drill bit rotates forward on the drill body (1), which makes to expand the wing (2), keeps in situ
Lower position block (31) and drill bit invert when limitation expand the wing (2) open angle upper limit position block (32)；The drill body
(1) top is equipped with stretching monitor control mechanism, the stretching monitor control mechanism include top shoe (41), metal pull bar (42),
Connecting rod (43) and location hook (44), the top shoe (41) are snug fit at drill body (1) top, the metal
Pull rod (42) is fixed on the upper surface of top shoe (41), and one end and the top shoe (41) of the connecting rod (43) are hinged, separately
One end is hinged with location hook (44), and the location hook (44) is articulated on drill body (1), the expansion wing (2)
Upper end is provided with the upper protruding block (22) matched with the location hook (44).
2. the mechanical reaming bit of a kind of foundation engineering according to claim 1, it is characterized in that: the drill body
(1) it is provided on anti-fall mechanism (5), the anti-fall mechanism (5) includes the spring (51) being placed in assembly cavity (5a) and limit
Position ball (52), the opening of the assembly cavity (5a) are covered with cover board (53), and the spacing ball (52) stretches out the cover board
(53) surface；The compatible limiting slot (2a) with the spacing ball (52) is provided on the inside of the expansion wing (2).
3. the mechanical reaming bit of a kind of foundation engineering according to claim 2, it is characterized in that: the cover board (53)
It is mutually fixed by screw (54) and drill body (1).
4. the mechanical reaming bit of a kind of foundation engineering according to claim 3, it is characterized in that: the location hook
(44) L-shaped structure, the lower end of the location hook (44) are formed with crook (44a).
5. the mechanical reaming bit of a kind of foundation engineering according to claim 4, it is characterized in that: the upper protruding block
(22) top is provided with flare skewback (22a).
6. the mechanical reaming bit of a kind of foundation engineering according to claim 5, it is characterized in that: the top shoe
(41) lower surface is convexly equipped with attachment base (41a), and upper end and the attachment base (41a) of the connecting rod (43) are hinged.
7. the mechanical reaming bit of a kind of foundation engineering according to claim 6, it is characterized in that: the location hook
(44) it is hinged by location hook pin shaft (44b) with the drill body (1).
8. the mechanical reaming bit of a kind of foundation engineering according to claim 7, it is characterized in that: the expansion wing
(2) top is hinged by expanding wing pin shaft (23) with the drill body (1).
9. the mechanical reaming bit of a kind of foundation engineering according to claim 8, it is characterized in that: the slip casting channel
The lower end of (1a) is provided with anti-blocking gasket (1b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910128567.XA CN109763773A (en) | 2019-02-21 | 2019-02-21 | A kind of mechanical reaming bit of foundation engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910128567.XA CN109763773A (en) | 2019-02-21 | 2019-02-21 | A kind of mechanical reaming bit of foundation engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109763773A true CN109763773A (en) | 2019-05-17 |
Family
ID=66456917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910128567.XA Pending CN109763773A (en) | 2019-02-21 | 2019-02-21 | A kind of mechanical reaming bit of foundation engineering |
Country Status (1)
| Country | Link |
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| CN (1) | CN109763773A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112324341A (en) * | 2020-10-30 | 2021-02-05 | 高文强 | Reaming device for underground coal mine geological exploration |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85106187A (en) * | 1985-05-31 | 1987-02-18 | 东京制作所(株式会社) | Stake hole bucket and method for digging thereof that the bottom reaming is used |
| CN2294995Y (en) * | 1997-04-02 | 1998-10-21 | 郭允庄 | Boring device for section-variable pile |
| JP2000356086A (en) * | 1999-04-13 | 2000-12-26 | Mitani Sekisan Co Ltd | Drill head and method for drilling pile hole |
| JP2002155691A (en) * | 2000-11-21 | 2002-05-31 | Shigeru Okayama | Excavator for pile pit |
| JP2003213679A (en) * | 2001-11-19 | 2003-07-30 | Mitani Sekisan Co Ltd | Construction method of pile hole, excavating rod and excavating head |
| JP2009144469A (en) * | 2007-12-17 | 2009-07-02 | Nishimura Kogyo Kk | Excavating blade expansion/contraction device |
| CN209621213U (en) * | 2019-02-21 | 2019-11-12 | 宁波中淳高科股份有限公司 | A kind of mechanical reaming bit of foundation engineering |
-
2019
- 2019-02-21 CN CN201910128567.XA patent/CN109763773A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85106187A (en) * | 1985-05-31 | 1987-02-18 | 东京制作所(株式会社) | Stake hole bucket and method for digging thereof that the bottom reaming is used |
| CN2294995Y (en) * | 1997-04-02 | 1998-10-21 | 郭允庄 | Boring device for section-variable pile |
| JP2000356086A (en) * | 1999-04-13 | 2000-12-26 | Mitani Sekisan Co Ltd | Drill head and method for drilling pile hole |
| JP2002155691A (en) * | 2000-11-21 | 2002-05-31 | Shigeru Okayama | Excavator for pile pit |
| JP2003213679A (en) * | 2001-11-19 | 2003-07-30 | Mitani Sekisan Co Ltd | Construction method of pile hole, excavating rod and excavating head |
| JP2009144469A (en) * | 2007-12-17 | 2009-07-02 | Nishimura Kogyo Kk | Excavating blade expansion/contraction device |
| CN209621213U (en) * | 2019-02-21 | 2019-11-12 | 宁波中淳高科股份有限公司 | A kind of mechanical reaming bit of foundation engineering |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112324341A (en) * | 2020-10-30 | 2021-02-05 | 高文强 | Reaming device for underground coal mine geological exploration |
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