CN205977102U - Double dynamical head length spiral pendulum changes drill machine with casing - Google Patents
Double dynamical head length spiral pendulum changes drill machine with casing Download PDFInfo
- Publication number
- CN205977102U CN205977102U CN201620997922.9U CN201620997922U CN205977102U CN 205977102 U CN205977102 U CN 205977102U CN 201620997922 U CN201620997922 U CN 201620997922U CN 205977102 U CN205977102 U CN 205977102U
- Authority
- CN
- China
- Prior art keywords
- casing
- rotation
- casing seat
- drill rod
- supporting part
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Earth Drilling (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The utility model relates to a double dynamical head length spiral pendulum changes drill machine with casing. Including frame device and connected drilling equipment, drilling equipment is including the drilling motor, connects and place in the long spiral drill rod of drilling motor below, and the cover passes the casing seat that long spiral drill rod upper portion lies in drilling motor below, places the vibrating motor in the casing seat in, connects vibrating motor's vibrating bin and installs in the casing seat below, and long spiral drill rod's steel bushing to vibrating bin to the suit, the steel casing pipe with can the casing seat internal rotation about and the mode of vibration connect on the casing seat, steel casing pipe outer wall upper portion is equipped with puts the commentaries on classics supporting part, it constructs to install the pendulum favourable turn on the casing seat, the pendulum favourable turn constructs to be connected to to put changes the supporting part, and the steel casing pipe can be done reciprocal pendulum transportation and move under the effect that the pendulum favourable turn constructs, the utility model discloses both had remain long auger drilling's advantage, had improved current rotary casing's structure and mode again, convenient degree that can effectual improvement drilling pile with become a stake quality.
Description
Technical field
This utility model is related to a kind of equipment in piling machinery field and pile application, the long spiral shell of specially a kind of double power head
Swing turns drill machine with casing and the method using its bored pile.
Background technology
Bored concrete pile system refers to pass through the means such as machine drilling, steel pipe soil compaction or manpower excavation in foundation soil in engineering site
Form stake holes, and place steel reinforcement cage, concrete perfusion and the stake made in it, different according to forming hole method, bored concrete pile may be used again
It is divided into a few class such as driven cast-in-place pile, cast-in-situ bored pile and digging hole filling pile.
The existing long-spiral drilling machine of tradition has single pole long-spiral drilling machine, and its rig driving for single-power head is this
The rotary drill machine of type is lifted long-spiral drilling machine in use and is not allowed to the actual mechanical process of underground with injection concrete grouting
Be easy to do seamless connection, and subsoil water, underground drift sand therefore can be made to enter among hole, and the pile quality of injection concrete is not
Can guarantee that.
Existing vibration sinking tube perfusion rig is downward vibration sinking tube soil compaction boring, concrete perfusion pile, this type
Rig can be applied with extruding force to Soil Surrounding in soil compaction boring procedure, one of extrusion stress produced by these extruding forces
Point discharge after lifting steel thimble, the reducing of concrete-pile diameter of perfusion, the quality of impact stake can be caused.
Existing double power head drives revoling tube rig, carries out perforate using revoling tube and long screw drill rod and holes into
Stake, needs to cut downwards soil when using revoling tube operation, needs to overcome the friction resistance producing between soil and sleeve opening
Power, in order to overcome the produced moment of torsion of frictional resistance, the carrying work(of matching Sleeve drill motor and sleeve pipe rig and frame
Rate and intensity requirement are higher, thus its cost is also a lot of than being lifted, simultaneously as ground is goed deep in the rotation of revoling tube, make
Obtain and be in close contact between soil and rotary sleeve, lead to frictional force to increase, propose the power consumption used by revoling tube and also more increase, and take
When laborious；Because revoling tube is larger to the active force of soil, therefore surrounding soil can be affected, lead to final
The qualitative effects of pile.
Utility model content
For above-mentioned the deficiencies in the prior art, applicant proposes to improve on the basis of existing, provides a kind of double dynamic
Power head long spire rotation drill machine with casing and a kind of method of rotation formula sleeve pipe long screw drill rod bored pile, had both remained long spire
The advantage of rig, improves the structure of existing revoling tube and mode so that the technical solution of the utility model can have again
The convenient degree and the quality that improve boring piling of effect；
Specifically, this utility model is realized in：A kind of double power head long spire rotation drill machine with casing includes frame
Device and connected drilling equipment, it is characterised in that described drilling equipment includes bore motor (1), connect and are placed in holing
Long screw drill rod (2) below motor (1), wore long screw drill rod (2) top and was located at the casing seat below bore motor (1)
(3), it is placed in the vibrating motor (4) in casing seat (3), the vibrating bin (5) of connecting vibration motor (4) is installed under casing seat (3)
Side, the steel thimble (6) that set is filled with long screw drill rod (2) connects to vibrating bin (5), and steel thimble (6) is can turn in casing seat (3)
Dynamic and up-down vibration mode is connected on casing seat (3), and steel thimble (6) outer wall top is provided with rotation supporting part (7), described set
Base is provided with rotatable mechaninism on (3), and described rotatable mechaninism connects to rotation supporting part (7), and steel thimble (6) is in rotatable mechaninism
Effect is lower to do reciprocal swinging motion.
Described rotation supporting part (7) suit is fixed on steel thimble (6) outer wall top, is provided with two evaginations in a symmetrical manner
Rotation connecting portion (8) be placed on the lateral wall of rotation supporting part (7).
Described rotatable mechaninism includes stranding and turns oil cylinder (9), oil piping system (10), movable drive part (11), Oil pump electrical machinery (12),
Oil pump electrical machinery (12) connects and turns oil cylinder (9) to stranding, rubs with the hands to turn oil cylinder (9) and be respectively provided with two and is installed on vibrating bin (5), two
Stranding turns oil cylinder (9) and connects to relative to passing through towards two rotation connecting portions (8) and respectively a movable drive part (11) respectively
On rotation connecting portion (8), Oil pump electrical machinery (12) has connected two strandings by oil piping system (10) and has turned oil cylinder (9) formation bidirectional circulating
Fuel feeding.
The rotation angular range of described rotation supporting part (7) is between 30 °～70 °.
Described rig also includes a reductor (13), and reductor (13) is placed between bore motor (1) and casing seat (3)
Long screw drill rod (2) is down extended by reductor (13), and the bottom mouth of pipe of described steel thimble (6) is provided with annular bit
(14).
Described long screw drill rod (2) is the drilling rod of the hollow connecting up and down, and Grouting Pipe (15) connects to hollow long screw auger
At the upper end hollow open of bar (2).
Described stand arrangement includes a frame (16), the first hoist (17) being placed in a frame (16), the first traction
Steel wire rope (18), second hoist (19) and the second haulage cable (20), are placed in the upper upwardly extending frame of a frame (16)
Arm (21), described first traction steel wire brush is connected to casing seat (3) by frame arm (21)；Described second haulage cable
(20) connected to drilling equipment by frame arm (21).
Operation principle is introduced：Double power head long spire rotation sleeve pipe including stand arrangement and connected drilling equipment
Rig, described drilling equipment includes bore motor (1), connects the long screw drill rod (2) being placed in below bore motor (1), set
It is located at the casing seat (3) below bore motor (1) through long screw drill rod (2) top, be placed in the vibrating motor in casing seat (3)
(4), the vibrating bin (5) of connecting vibration motor (4) is installed on below casing seat (3), and set is filled with the steel thimble of long screw drill rod (2)
(6) connect to vibrating bin (5), steel thimble (6) is can be connected to casing seat in the way of rotation in casing seat (3) simultaneously up-down vibration
(3) on, steel thimble (6) outer wall top is provided with rotation supporting part (7), and described sleeve pipe seat is provided with rotatable mechaninism on (3), described pendulum
Rotation mechanism connects to rotation supporting part (7), and steel thimble (6) can do reciprocal swinging motion in the presence of rotatable mechaninism.Boring
Motor (1) is that long screw drill rod (2) provides power, and casing seat (3) is located at below bore motor (1), and the two is not fixedly connected, when
When casing seat (3) is close to bore motor (1), bore motor (1) can provide casing seat (3) support force, strengthen its stability and
Active force, therefore vibrating bin (5) drive steel thimble (6) to do upper and lower vibration in acting on of vibrating motor (4) in casing seat (3)
Motion, rotation supporting part (7) is fixing with steel thimble (6), and rotatable mechaninism drives rotation supporting part (7) to do reciprocal rotation, that is, rub with the hands
Turn, thus steel thimble (6) both up-down vibration, and left and right directions rubs the motion turning with the hands back and forth, then produces area with the sleeve pipe of single direction rotation
Not so that the friction force on the sleeve pipe mouth of pipe and ground will not move with it and increase, thus alleviating needed for stand arrangement
Load pressure, overcomes a deficiency of traditional revoling tube；The motion mode of up-down vibration is so that steel thimble (6) relies on certainly
During the power of heavy sensation of the body power and up-down vibration constantly sinks to entering soil, turn and up-down vibration rubbing with the hands and soil wall between
Reciprocating motion effect is lower to produce soil liquefaction phenomenon, reduces steel thimble (6) penetration resistance, can be easy to improve after soil liquefaction
Piling efficiency, it is also possible to allow surrounding soil cohesion become tight, prevents loose, promotes pile-forming effect, improve pile quality.
Described rotation supporting part (7) suit is fixed on steel thimble (6) outer wall top, is provided with two evaginations in a symmetrical manner
Rotation connecting portion (8) be placed on the lateral wall of rotation supporting part (7).Rotation connecting portion (8) is used for bearing receiving during rotation
Thrust, pulling force effect, evagination increased the arm of force of its stress, provides the active force stress point of rotation, is easy to improve rotation support
The rotation efficiency in portion (7).
Described rotatable mechaninism includes stranding and turns oil cylinder (9), oil piping system (10), movable drive part (11), Oil pump electrical machinery (12),
Oil pump electrical machinery (12) connects and turns oil cylinder (9) to stranding, rub with the hands to turn oil cylinder (9) and be respectively provided with two and be installed on vibrating bin (5), two
Individual stranding turns oil cylinder (9) and connects to relatively to towards two rotation connecting portions (8) and respectively by a movable drive part (11) respectively
Rotation connecting portion (8) on, Oil pump electrical machinery (12) has connected two strandings by oil piping system (10) and turns oil cylinder (9) and formed and two-way followed
Ring fuel feeding, thus drive rotation supporting part (7) to do reciprocal stranding transhipment move so that the rotation angular range of rotation supporting part (7) exists
Between 30 °～70 °.
Described rig also includes a reductor (13), and reductor (13) is placed between bore motor (1) and casing seat (3)
Long screw drill rod (2) is down extended by reductor (13), and the bottom mouth of pipe of described steel thimble (6) is provided with annular bit
(14).Described long screw drill rod (2) is the drilling rod of the hollow connecting up and down, and Grouting Pipe (15) connects to hollow long screw drill rod
(2) at upper end hollow open, it is easy to grouting operation, improve pile efficiency；
Stand arrangement includes a frame (16), the first hoist (17) being placed in a frame (16), the first traction steel wire
Rope (18), second hoist (19) and the second haulage cable (20), are placed in the upper upwardly extending frame arm of a frame (16)
(21), described first traction steel wire brush is connected to casing seat (3) by frame arm (21)；Described second haulage cable (20)
Connected to drilling equipment by frame arm (21).During use, first hoist (17) drives the first haulage cable (18), is used for
Casing seat (3) is carried out with descending operation, second hoist (19) drives the second haulage cable (20) to be used for drilling equipment is entered
Row lifting manipulation.
In sum, this utility model has the advantage that and advantageous effect：
(1) a kind of double power head long spire rotation drill machine with casing that this utility model provides, remains long-spiral drilling machine
Premium properties, also in relation with the advantage of drill machine with casing, overcomes the deficiency of existing equipment, there is provided more convenient, in hgher efficiency, becomes
The stake more preferable effect of quality.
(2) motion mode of the vibration of steel thimble (6) and stranding turn will not cause too high load pressure to frame, is conducive to
Reduce the cost of frame.
(3) motion mode of the vibration of steel thimble (6) and stranding turn produces soil liquefaction now with soil faying face in use
As reducing the penetration resistance of steel thimble (6) and rising when hoist engine lifts pulling out resistance, reduce stranding and turn resistance, be conducive to steel
Sleeve pipe (6) cuts soil swelling-shrinkage thing, improves efficiency of construction.
(4) when being fed into concrete and carrying out pile operation, lifting steel thimble (6) and/or while long screw drill rod (2)
Remain in that the vibration of steel thimble (6) turns with rubbing with the hands, being conducive to the degree of compaction of the concrete of perfusion, thus improving pile quality, obtaining
Obtain high-quality pile.
(5) a kind of double power head long spire rotation drill machine with casing of the present utility model and carry out long spire using rotation sleeve pipe
The method of drilling rod (2) bored pile, device structure is scientific and reasonable, and methodological science is easy-to-use, and effect substantially, has good market and pushes away
Wide value and significance.
Brief description
Fig. 1 is a kind of structural representation of double power head long spire rotation drill machine with casing；
Fig. 2 is a kind of left view of double power head long spire rotation drill machine with casing；
Fig. 3 is the structural representation of rotatable mechaninism；
Wherein：1 bore motor, 2 long screw drill rods, 3 casing seats, 4 vibrating motors, 5 vibrating bins, 6 steel
Sleeve pipe, 7 rotation supporting parts, 8 rotation connecting portions, 9 rub with the hands turn oil cylinder, 10 oil piping systems, 11 movable drive parts, 12
Oil pump electrical machinery, 13 reductors, 14 annular bits, 15 Grouting Pipe, 16 frames, 17 first hoist, 18
One haulage cable, 19 second hoist, 20 second haulage cables, 21 frame arm.
Specific embodiment
Embodiment：As shown in Figure 1 and Figure 2, this utility model double power head long spire rotation drill machine with casing includes stand arrangement
With connected drilling equipment, described drilling equipment includes bore motor 1, connects the long spiral shell being placed in bore motor 1 lower section
Rotary drill bar 2, wore the casing seat 3 that long screw drill rod 2 top is located at bore motor 1 lower section, was placed in the vibration electricity in casing seat 3
Machine 4, the vibrating bin 5 of connecting vibration motor 4 is installed on below casing seat 3, set be filled with long screw drill rod 2 steel thimble 6 connect to
Vibrating bin 5, steel thimble 6 by can in casing seat 3 rotate and up-down vibration in the way of be connected on casing seat 3, steel thimble 6 outer wall
Top is provided with rotation supporting part 7, and described sleeve pipe seat 3 is provided with rotatable mechaninism, and described rotatable mechaninism connects to rotation supporting part
7, steel thimble 6 can do reciprocal swinging motion in the presence of rotatable mechaninism.Bore motor 1 provides power for long screw drill rod 2,
Casing seat 3 is located at below bore motor 1, and the two is not fixedly connected, when casing seat 3 is close to bore motor 1, bore motor 1 energy
Enough provide casing seat 3 support force, strengthen its stability and active force, therefore vibrating bin 5 acts on casing seat in vibrating motor 4
Steel thimble 6 is driven to do upper and lower oscillating movement in 3, rotation supporting part 7 is fixing with steel thimble 6, rotatable mechaninism drives rotation to support
Reciprocal rotation is done in portion 7, that is, rub with the hands and turn, thus steel thimble 6 both up-down vibration, and left and right directions rubs the motion turning back and forth with the hands, and unidirectional
The sleeve pipe of rotation then produces difference so that the friction force on the sleeve pipe mouth of pipe and ground will not move with it and increase, thus subtracting
Light load pressure needed for stand arrangement, overcomes a deficiency of traditional revoling tube；The motion mode of up-down vibration, makes
Obtain steel thimble 6 sinking to entering in soil course, produce under the reciprocating motion of stranding turn and up-down vibration acts on and soil wall between
Raw-soil earth liquefaction phenomenon, reduces steel thimble 6 penetration resistance after soil liquefaction, can be easy to improve piling efficiency it is also possible to allow
Surrounding soil cohesion becomes tight, prevents loose, promotes pile-forming effect, improves pile quality；
As shown in figure 3, described rotation supporting part 7 suit is fixed on steel thimble 6 outer wall top, it is provided with two in a symmetrical manner
The rotation connecting portion 8 of individual evagination is placed on the lateral wall of rotation supporting part 7.Rotation connecting portion 8 is used for bearing receiving during rotation
Thrust, pulling force effect, evagination increased the arm of force of its stress, provides the active force stress point of rotation, is easy to improve rotation support
The rotation efficiency in portion 7；Described rotatable mechaninism includes stranding and turns oil cylinder 9, oil piping system 10, movable drive part 11, Oil pump electrical machinery 12, oil
Pump motor 12 connects and turns oil cylinder 9 to stranding, rub with the hands to turn oil cylinder 9 and be respectively provided with two and be installed on vibrating bin 5, two strandings turn oil cylinder 9
Connect to relative rotation connecting portion 8 to towards two rotation connecting portions 8 and respectively by a movable drive part 11 respectively, oil
Pump motor 12 has connected two strandings by oil piping system 10 and has turned oil cylinder 9 formation bidirectional circulating fuel feeding, thus driving rotation supporting part 7
Do reciprocal stranding with the hands and transport dynamic so that the rotation angle of rotation supporting part 7 is 45 °, this angle range can be between 30 °～70 °；
Described rig also includes a reductor 13, and reductor 13 is placed in long screw auger between bore motor 1 and casing seat 3
Bar 2 is down extended by reductor 13, and the bottom mouth of pipe of described steel thimble 6 is provided with annular bit 14.Described long screw auger
Bar 2 is the drilling rod of the hollow connecting up and down, and Grouting Pipe 15 connects to the upper end hollow open of hollow long screw drill rod 2, is easy to
Grouting operation, improves pile efficiency；
Stand arrangement include a frame 16, the first hoist 17 being placed in a frame 16, the first haulage cable 18,
Two hoist engines 19 and the second haulage cable 20, are placed in upwardly extending frame arm 21 in a frame 16, described first traction steel
Wire brush is connected to casing seat 3 by frame arm 21；Described second haulage cable 20 is connected to boring dress by frame arm 21
Put.During use, first hoist 17 drives the first haulage cable 18, for carrying out descending operation, the second elevator to casing seat 3
Machine 19 drives the second haulage cable 20 to be used for drilling equipment is carried out with lifting manipulation.
Claims (7)
1. a kind of double power head long spire rotation drill machine with casing, including stand arrangement and connected drilling equipment, its feature
It is that described drilling equipment includes bore motor (1), connect the long screw drill rod (2) being placed in below bore motor (1), wear
Cross casing seat (3) below bore motor (1) for long screw drill rod (2) top, be placed in the vibrating motor in casing seat (3)
(4), the vibrating bin (5) of connecting vibration motor (4) is installed on below casing seat (3), and set is filled with the steel thimble of long screw drill rod (2)
(6) connect to vibrating bin (5), steel thimble (6) is can be connected to casing seat in the way of rotation in casing seat (3) simultaneously up-down vibration
(3) on, steel thimble (6) outer wall top is provided with rotation supporting part (7), and described sleeve pipe seat is provided with rotatable mechaninism on (3), described pendulum
Rotation mechanism connects to rotation supporting part (7), and steel thimble (6) can do reciprocal swinging motion in the presence of rotatable mechaninism.
2. rig according to claim 1 is it is characterised in that described rotation supporting part (7) suit is fixed on steel thimble (6)
Outer wall top, the rotation connecting portion (8) being provided with two evaginations in a symmetrical manner is placed on the lateral wall of rotation supporting part (7).
3. rig according to claim 1 turns oil cylinder (9), oil piping system it is characterised in that described rotatable mechaninism includes stranding
(10), movable drive part (11), Oil pump electrical machinery (12), Oil pump electrical machinery (12) connects and turns oil cylinder (9) to stranding, rubs with the hands and turns oil cylinder (9) point
Not there are two be installed on vibrating bin (5), two strandings turn oil cylinder (9) respectively to towards two rotation connecting portions (8) and respectively
Connected to relative rotation connecting portion (8) by a movable drive part (11), Oil pump electrical machinery (12) passes through oil piping system
(10) connect two strandings and turn oil cylinder (9) formation bidirectional circulating fuel feeding.
4. rig according to claim 1 is it is characterised in that the rotation angular range of described rotation supporting part (7) is at 30 °
Between～70 °.
5. rig according to claim 1 is it is characterised in that described rig also includes a reductor (13), reductor
(13) it is placed in long screw drill rod (2) between bore motor (1) and casing seat (3) down to extend by reductor (13), described steel
Annular bit (14) is provided with the bottom mouth of pipe of sleeve pipe (6).
6. rig according to claim 1 is it is characterised in that described long screw drill rod (2) is the brill of the hollow connecting up and down
Bar, Grouting Pipe (15) connects to the upper end hollow open of hollow long screw drill rod (2).
7. rig according to claim 1 is it is characterised in that stand arrangement includes a frame (16), is placed in a frame (16)
On first hoist (17), the first haulage cable (18), second hoist (19) and the second haulage cable (20), be placed in
The upper upwardly extending frame arm (21) of stake frame (16), described first traction steel wire brush is connected to casing seat by frame arm (21)
(3) on；Described second haulage cable (20) is connected to drilling equipment by frame arm (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620997922.9U CN205977102U (en) | 2016-08-30 | 2016-08-30 | Double dynamical head length spiral pendulum changes drill machine with casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620997922.9U CN205977102U (en) | 2016-08-30 | 2016-08-30 | Double dynamical head length spiral pendulum changes drill machine with casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205977102U true CN205977102U (en) | 2017-02-22 |
Family
ID=58042452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620997922.9U Withdrawn - After Issue CN205977102U (en) | 2016-08-30 | 2016-08-30 | Double dynamical head length spiral pendulum changes drill machine with casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205977102U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194030A (en) * | 2016-08-30 | 2016-12-07 | 昆明良工桩机制造有限公司 | A kind of double power head long spire rotation drill machine with casing and the method using its bored pile |
| CN111101865A (en) * | 2019-12-30 | 2020-05-05 | 深圳市盛业地下工程有限公司 | High efficiency drilling equipment |
-
2016
- 2016-08-30 CN CN201620997922.9U patent/CN205977102U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194030A (en) * | 2016-08-30 | 2016-12-07 | 昆明良工桩机制造有限公司 | A kind of double power head long spire rotation drill machine with casing and the method using its bored pile |
| CN111101865A (en) * | 2019-12-30 | 2020-05-05 | 深圳市盛业地下工程有限公司 | High efficiency drilling equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106194030B (en) | A kind of double power head long spire rotation drill machine with casing and the method using its bored pile | |
| CN205840770U (en) | A kind of impact type rotary drilling rig device being applicable to heavy caliber construction | |
| CN104471177B (en) | Rotary bucket rig | |
| CN201753450U (en) | Piling machine | |
| CN105178861A (en) | Drilling hole enlarging mechanism | |
| CN102182180B (en) | Rotary extrusion sleeve anchor rod and construction method thereof | |
| CN205977102U (en) | Double dynamical head length spiral pendulum changes drill machine with casing | |
| CN102373705A (en) | Pile sinking device and method for outer digging pre-stressed centrifugal pipe pile and square pile | |
| CN207960490U (en) | A kind of double drive drilling machine | |
| CN205135406U (en) | Can dash rig of filling thick liquid | |
| CN106836202A (en) | Bored in efficient pile tube soil, piling, dust, whitewash all-in-one and its construction technology | |
| CN206290207U (en) | A kind of modified bored pile construction rig | |
| CN200992970Y (en) | Deep soil subgrade core drilling rig | |
| CN205387708U (en) | Clear stake device of disposable rotary -cut formula of a complete set of pipe | |
| CN201943066U (en) | Screw rod pile machine | |
| CN202788610U (en) | Down-hole hammer sleeve follow-up drilling machine | |
| CN202544737U (en) | Pressurization type drilling machine | |
| CN101858196A (en) | Low gravity center three-axle spiral drilling machine and drilling method thereof | |
| CN203050487U (en) | Tubular drill and pile cutting drilling machine using same | |
| CN101086160B (en) | Rotary-digging stillage truck | |
| CN202544758U (en) | Drill rod | |
| CN214997452U (en) | Large-scale long auger drilling that shakes | |
| CN105275389A (en) | Double-rod well drilling machine | |
| CN212612466U (en) | Special geological pile foundation construction equipment | |
| CN201679003U (en) | Screw pile driver |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170222 Effective date of abandoning: 20180703 |