CN208456495U - A kind of hilted broadsword type spiral down-hole hammer for long spire pile foundation pore-forming - Google Patents
A kind of hilted broadsword type spiral down-hole hammer for long spire pile foundation pore-forming Download PDFInfo
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- CN208456495U CN208456495U CN201820938832.1U CN201820938832U CN208456495U CN 208456495 U CN208456495 U CN 208456495U CN 201820938832 U CN201820938832 U CN 201820938832U CN 208456495 U CN208456495 U CN 208456495U
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- Prior art keywords
- hole hammer
- drilling rod
- helical blade
- hole
- pile foundation
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Abstract
The utility model discloses a kind of hilted broadsword type spiral down-hole hammer for long spire pile foundation pore-forming, including drilling rod, helical blade is arranged in the outside of drilling rod, and down-the-hole hammer stem is arranged in drilling rod, down-the-hole hammer stem one end is connect with pneumatic head, and the down-the-hole hammer stem other end is connect with down-hole hammer；The section of the down-hole hammer is rectangle, and the pick of aligned multiple bullet-shapeds is arranged in the bottom end face of down-hole hammer；The bottom of the helical blade is also provided with multiple picks, and the arc length of the helical blade of the setting pick is 0.2-0.3 times of helical blade rotary body arc length；The outer diameter of the helical blade is identical.The utility model has the characteristics that design is reasonable, easy to operate, hammering is controllable, and drilling construction efficiency can be improved, and saves time and machine cost, and energy conservation and environmental protection.
Description
Technical field
The utility model type is related to building machinery field, specifically a kind of to be used for spiral down-hole hammer.
Background technique
In construction, more and more pile foundation mechanical hole buildings are uneven in complex geologic conditions, soil in-situ performance
It constructs under even, rock mass strength high condition.It is a large amount of for containing in place surface layer miscellaneous fill (silty clay, rubble) stratum
The non-uniform hard sundries of partial size, faces bit freezing, inclination and collapse hole etc. in bored pile construction using common rotary drilling rig
Technical problem, and the middle decomposed rock intensity larger impact drilling efficiency that underlies；It is filled out using long-spiral drilling machine drilling thick-layer containing rubble is miscellaneous
Drilling depth is difficult when native, and the middle decomposed rock that underlies (embedding rock) can not be crept into；When using Major diameter downhole hammer drilling tool, due to miscellaneous fill layer
Compactness is lower and is unevenly distributed, and lower silty clay layer mechanical strength is lower, easily occurs phenomena such as collapse hole after drilling, pile foundation at
Hole difficulty of construction is higher.Chinese Patent Application No. 2015110306287 discloses a kind of drilling bit of rotary-digging drilling rig that can be impacted, this is specially
Benefit application uses section as circular down-hole hammer, and uses down-hole hammer and the adjustable technical solution of auger stem, i.e.,
" when for being soil layer at empty object, layer of sand, clay layer, when incompetent bed, when not needing down-hole hammer and impacting downwards, not to snorkel
In be passed through compressed air, so down-hole hammer would not jerk, down-hole hammer can be to drilling rod internal pressure under the effect of the pressure for drilling rod
Contracting, spring can be compressed at this time, and piston can move upwards.Drilling rod rotates at this time, under the action of drilling rod pressure, by drilling rod
Sub warhead pick, double helix blade, down-hole hammer carry out bore operation jointly, are taken out of dregs or rock particles by helical blade
Outside hole, drilling is completed.(2) when for pore-forming object is hard rock stratum, compressed air can be passed through into snorkel first, at this time
Double helix blade stops rotating, and compressed air is entered in cylinder by cylinder intake hole, and piston moves downward for promotion, at the same time
Piston drive guide rod to move downward by buffer spring to push down-hole hammer to move downward impact rock broken, compressed air is from latent
The venthole of drift is discharged, and plays the role of cooling down-hole hammer.When impacting to a certain extent, the drilling rod for opening double helix turns
It is dynamic, drilling rod can also be made to move downward and not impact under the effect of the pressure, in pore forming process to bore downwards in impact
The rubble of generation is portalled outside by double helix blade band, completes pore-forming operation.", in addition, the double helix leaf on the drilling rod of the patent
Piece is provided with multilayer sub warhead pick, since double helix blade has the function that surflaes is delivered to ground, conveying
When, it is very easy at the sub warhead pick block；Section is used as circular down-hole hammer, is downwards a face when impact
Multiple points integrally contact by alluvium, therefore, cause the dispersion of impact force, affect impact effect.
Utility model content
In order to solve the problems existing in the prior art, the utility model type designs a kind of list for long spire pile foundation pore-forming
Blade type spiral down-hole hammer solves the construction difficult problem of drilling bad ground, substantially increases drilling construction efficiency, can guarantee pile foundation
Pore-forming effect, and economic and environment-friendly is one kind under compressed air-driven, can make hilted broadsword type carbide drill to bottom hole hard rock into
Row high-frequency percussion is broken, and the novel pneumatic down-hole hammer of casting is forced by helical blade.It can be used for compared with thick fill layer, sand
Drilling construction in layer, clay layer, sandy gravel stratum, boulder bed, block stone layer, soft middle hard stratum and hard rock layer.It is particularly useful for wanting
It asks in insertion, gentle breeze ashing rock or the pile foundation mechanical hole building containing erratic boulder, the gravel layer of block stone across huge thickness.
Specific technical solution is as follows:
Spiral is arranged in the outside of a kind of hilted broadsword type spiral down-hole hammer for long spire pile foundation pore-forming, including drilling rod, drilling rod
Blade, drilling rod is interior to be arranged down-the-hole hammer stem, and down-the-hole hammer stem one end is connect with pneumatic head, the down-the-hole hammer stem other end and down-hole hammer
Connection；The section of the down-hole hammer is rectangle, and aligned multiple bullet-shapeds are arranged in the bottom end face of down-hole hammer
Pick；The bottom of the helical blade is also provided with multiple picks, and the arc length of the helical blade of the setting pick is spiral
0.2-0.3 times of blade rotary body arc length；The outer diameter of the helical blade is identical.
The lower end surface of the down-hole hammer is the conical surface；
The down-the-hole hammer stem is connect with pneumatic head, and the pneumatic head is by compressed air-driven.
The drilling rod be multistage combination, one section of the lowermost is integrally fixed with down-hole hammer, and by flange with it is above
Drilling rod connection.
The pneumatic head setting on a mounting board, in the sliding slot of the two sides insertion slideway of the mounting plate, mounting plate it is upper
Groove is arranged in portion, and the boss of positioning bolt is embedded in the groove, and the threaded portion of positioning bolt screws in the threaded hole of fixing seat,
In the mounting shell body of fixing seat setting；The installation shell is further fixed on rotating electric machine, the output shaft and driving wheel of rotating electric machine
It rotates coaxially, driving wheel is engaged with driven wheel, and driven wheel is fixedly connected with drilling rod.Positioning bolt guarantees down-hole hammer and helical blade
The lowermost distance is certain, and this makes it possible to rocks for making rigid impact comminution etc. further to be crushed and be exported by rotating vane.
The helical blade of such hilted broadsword type spiral down-hole hammer and drilling rod forms entirety, drives drilling rod using large torque power head
And bottom down-hole hammer rotary drilling, after entering hard rock stratum, down-hole hammer is under the effect of air compressor machine compressed air-driven, to bottom hole hard rock
High-frequency impact is carried out, is effectively hammered, grinding quarter crushed rocks, and reduces clast and repeats broken, increase hammering drilling efficiency, and dive
Drift two sides space is big, and soil discharge quantity is big, forms dregs and rock particles in boring procedure by helical blade and conveys outlet, is not necessarily to
Gaslift direct circulation casting (it is sprayed by the high pressure gas of down-hole hammer from hammer body lower end, the soil being discharged will be needed to be delivered to ground,
This is also the common means of the prior art), no dust disperses problem.
The utility model has the characteristics that design is reasonable, easy to operate, hammering is controllable, and drilling construction efficiency can be improved, save
It makes an appointment and machine cost, and energy conservation and environmental protection.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the lowermost drilling rod, down-hole hammer connection schematic diagram；
Fig. 3 is the A direction view of Fig. 2；
Fig. 4 is the scheme of installation of impact head；
In figure, 1 is long-spiral drilling machine, and 2 be pneumatic head, and 3 be air compressor machine, and 4 be drilling rod, and 5 be one section 5,6 of drilling rod the lowermost
It is helical blade for flange, 7,8 be down-the-hole hammer stem, and 9 be down-hole hammer, and 10 be pick, and 11 be installation shell, and 12 be rotating electric machine,
13 be driving wheel, and 14 be driven wheel, and 15 be mounting plate, and 16 be slideway, and 17 be positioning bolt, and 18 be fixing seat, and 19 be groove.
Specific embodiment
Illustrate the utility model with reference to the accompanying drawing, as shown, the utility model includes drilling rod 4, drilling rod 4 it is outer
Helical blade 7 is arranged in side, down-the-hole hammer stem 8 is arranged in drilling rod 4,8 one end of down-the-hole hammer stem is connect with pneumatic head 2, the down-the-hole hammer stem 8
Other end is connect with down-hole hammer 9；The section of the down-hole hammer 9 is rectangle, and the bottom end face setting of down-hole hammer is in line
The pick 10 of multiple bullet-shapeds of arrangement；The bottom of the helical blade is also provided with multiple picks 10, it is preferable that is 3-5
A, the arc length N of the helical blade of the setting pick is 0.2-0.3 times of helical blade rotary body arc length M；The helical blade
7 outer diameter is identical, is formed from top to bottom cylindric.
The lower end surface 91 of the down-hole hammer 9 is the conical surface；
The down-the-hole hammer stem 8 is connect with pneumatic head 2, and the pneumatic head is by compressed air-driven；Pneumatic head can be used commercially available
Product, such as the product of Shanghai Ju Le Electronic Science and Technology Co., Ltd..
The pneumatic head 2 is arranged on mounting plate 15, in the sliding slot of the two sides insertion slideway 16 of the mounting plate 15, installation
Groove 19 is arranged in the top of plate 15, and the boss of positioning bolt 17 is embedded in the groove 19, and the threaded portion of positioning bolt 17 screws in
In the threaded hole of fixing seat 18, in the installation shell 11 that fixing seat 18 is arranged；The installation shell 11 is further fixed on rotating electric machine
12, output shaft and the driving wheel 13 of rotating electric machine 12 rotate coaxially, and driving wheel 13 is engaged with driven wheel 14, driven wheel 14 and drilling rod
4 are fixedly connected.The rotation for doing 18 is being fixed by positioning bolt 17, is driving moving up and down for mounting plate 15, therefore, positioning bolt
Guarantee down-hole hammer and helical blade the lowermost distance can adjust and the fixation of position, this makes it possible to make rigid impact comminution
Rock etc. is further crushed and is exported by rotating vane.
To reduce since partial destruction bring is integrally damaged convenient for finishing, the drilling rod is multistage combination, the lowermost
It is integrally fixed with down-hole hammer for one section 5 and forms hilted broadsword type spiral down-hole hammer, and connect by flange 6 with drilling rod above.
The embodiment of the utility model type are as follows:
Hilted broadsword type spiral down-hole hammer is connect with long screw auger driver drilling rod using bolt flange mode, with long spiral shell by the first step
Rotary drill driver drilling rod helical blade forms entirety.
Second step, starting drilling rod are that the large torque power head of long-spiral drilling machine 1 drives the drilling rod 4 of long spire shape and bottom single
The 9 rotary drilling surface layer miscellaneous fill of down-hole hammer of blade type.
Third step after entering hard rock stratum, starts air compressor machine compressed air-driven down-hole hammer, makes the hard alloy of down-hole hammer 9
Drill bit carries out high-frequency impact to bottom hole hard rock, and effectively crushed rocks are carved in hammering, grinding, and drill bit two sides space is big, boring procedure
Middle formation dregs and rock particles pass through helical blade forced conveyance outlet.
The down-hole hammer of the utility model is connect by down-the-hole hammer stem 8 with pneumatic head 2, therefore, it can be achieved that various states, such as:
Helical blade rotates while down-the-hole hammering blow, and guarantees that down-hole hammer and helical blade the lowermost distance are certain, thus can
Enough so that just the rock etc. of impact comminution is further crushed and exported by rotating vane；In addition, the pin on down-the-hole hammer stem 8 can be passed through
It is inserted into the mode of positioning pin between pin hole in hole seat and drilling rod, guarantees that the two rotates coaxially, therefore, it can be achieved that down-hole hammer, spiral
Blade coaxial rotating, and pneumatic head need to be only closed at this time, it is clay shape situation that such case, which is suitable for geology state,.
Claims (4)
1. helical-blade is arranged in the outside of a kind of hilted broadsword type spiral down-hole hammer for long spire pile foundation pore-forming, including drilling rod, drilling rod
Piece, it is characterised in that: down-the-hole hammer stem is set in drilling rod, and down-the-hole hammer stem one end is connect with pneumatic head, the down-the-hole hammer stem other one
End is connect with down-hole hammer；The section of the down-hole hammer is rectangle, and the bottom end face of down-hole hammer be arranged it is aligned more
The pick of a bullet-shaped；The bottom of the helical blade is also provided with multiple picks；The pneumatic head is arranged on a mounting board,
The two sides of the mounting plate are embedded in the sliding slot of slideway, the top setting groove of mounting plate, described in the boss insertion of positioning bolt
In groove, the threaded portion of positioning bolt is screwed in the threaded hole of fixing seat, in the mounting shell body of fixing seat setting；The mounting shell
Body is further fixed on rotating electric machine, and output shaft and the driving wheel of rotating electric machine rotate coaxially, and driving wheel is engaged with driven wheel, driven wheel
It is fixedly connected with drilling rod.
2. the hilted broadsword type spiral down-hole hammer according to claim 1 for long spire pile foundation pore-forming, it is characterised in that: setting
The arc length of the helical blade of pick is 0.2-0.3 times of helical blade rotary body arc length；The outer diameter of the helical blade is identical.
3. the hilted broadsword type spiral down-hole hammer according to claim 1 for long spire pile foundation pore-forming, it is characterised in that: described
The lower end surface of down-hole hammer is the conical surface.
4. the hilted broadsword type spiral down-hole hammer according to claim 1 for long spire pile foundation pore-forming, it is characterised in that: described
Drilling rod is multistage combination, and one section of the lowermost is integrally fixed with down-hole hammer, and is connect by flange with drilling rod above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820938832.1U CN208456495U (en) | 2018-06-19 | 2018-06-19 | A kind of hilted broadsword type spiral down-hole hammer for long spire pile foundation pore-forming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820938832.1U CN208456495U (en) | 2018-06-19 | 2018-06-19 | A kind of hilted broadsword type spiral down-hole hammer for long spire pile foundation pore-forming |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208456495U true CN208456495U (en) | 2019-02-01 |
Family
ID=65159537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820938832.1U Expired - Fee Related CN208456495U (en) | 2018-06-19 | 2018-06-19 | A kind of hilted broadsword type spiral down-hole hammer for long spire pile foundation pore-forming |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208456495U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843237A (en) * | 2018-06-19 | 2018-11-20 | 中建铁路投资建设集团有限公司 | A kind of hilted broadsword type spiral down-hole hammer for long spire pile foundation pore-forming |
| WO2022262082A1 (en) * | 2021-06-16 | 2022-12-22 | 中铁上海工程局集团有限公司 | Construction apparatus capable of assisting in hole creating by means of foaming agent |
-
2018
- 2018-06-19 CN CN201820938832.1U patent/CN208456495U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843237A (en) * | 2018-06-19 | 2018-11-20 | 中建铁路投资建设集团有限公司 | A kind of hilted broadsword type spiral down-hole hammer for long spire pile foundation pore-forming |
| WO2022262082A1 (en) * | 2021-06-16 | 2022-12-22 | 中铁上海工程局集团有限公司 | Construction apparatus capable of assisting in hole creating by means of foaming agent |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190201 Termination date: 20200619 |