CN105401878A - Drilling machine for large-diameter down hole hammer - Google Patents
Drilling machine for large-diameter down hole hammer Download PDFInfo
- Publication number
- CN105401878A CN105401878A CN201510884134.9A CN201510884134A CN105401878A CN 105401878 A CN105401878 A CN 105401878A CN 201510884134 A CN201510884134 A CN 201510884134A CN 105401878 A CN105401878 A CN 105401878A
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- Prior art keywords
- unit head
- hammer
- head
- large diameter
- deslagging
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- 238000005553 drilling Methods 0.000 title claims abstract description 35
- 239000002893 slag Substances 0.000 claims abstract description 4
- 210000001364 upper extremity Anatomy 0.000 claims description 11
- 239000010426 asphalt Substances 0.000 claims description 10
- 244000261422 Lysimachia clethroides Species 0.000 claims description 7
- 238000013016 damping Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 9
- 241000272814 Anser sp. Species 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 210000001503 joint Anatomy 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 17
- 239000007789 gas Substances 0.000 description 8
- 238000012546 transfer Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000012407 engineering method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 239000002912 waste gas 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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/06—Down-hole impacting means, e.g. hammers
-
- 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
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (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 drilling machine for a large-diameter down hole hammer. The drilling machine comprises a chassis (1), a jib lubbing mechanism (4), a main rolling steel wire rope (8), a mast (5), a power head (9), a gas inlet channel (6), a drill stem (14) and a goose head (7), and further comprises a group of sleeves (13) which can be inserted into drilling holes, and a deslagging head (11), wherein the power head (9) is mounted on the mast (5) by adopting a forerake and sidesway structure; the deslagging head (11) can be in butt joint with the upper ends of the sleeves (13); the upper end of a deslagging tube (12) is connected to a slag outlet of the deslagging head (11); the lower end of the mast (5) is provided with a telescopic front supporting leg (17); and a pile gripper (18) is connected with the telescopic front supporting leg (17). The drilling machine is reliable in performance, complete in function, high in degree of automation, capable of realizing entire process supervising for large-diameter down hole hammer drilling and casing, suitable for various geological conditions and capable of conveniently and efficiently carrying out drilling construction.
Description
Technical field
The present invention relates to engineering machinery field, particularly the down-hole hammer rig of pile foundation construction mechanical field.
Background technology
Traditional down-hole hammer drilling machine construction aperture is all at below 400mm; in the market not for the special drilling machine of constructing more than 400mm Major diameter downhole hammer; its difficult point is that the construct vibration that causes of Major diameter downhole hammer is large to surrounding environment influence; a large amount of air can produce disturbance in underground formation; need protection casing to follow up to protect; and the omnidistance sleeve pipe retaining wall of deep hole, need more piece sleeve pipe to connect, will efficiency of construction be affected like this.Above problem is the major obstacle stoping Major diameter downhole hammer construction method to be promoted, and the powerful of the multiple geology of the adaptation that down-hole hammer has efficiently creeps into function, people are impelled again to be used by the machine adaptation of this engineering method by some, to tackle complicated geological, particularly hard rock geology.The down-the-hole drill such as changed a social system on rotary drilling rig, achieve from unit head air inlet, but when constructing, during the moving up and down of machine, the follow-up of pipeline is moved and is assisted by needs crane, and mounting sleeve retaining wall needs crane to assist, sleeve pipe one saves to connect needs crane to assist, need many people observe align, and gas circuit, oil circuit operation dispersion, add manually many, make integral construction inefficiency, hold facility rate is high.And deslagging exhaust is not protected, deslagging airborne dust causes again environment pollution; And adopt double power head full-sleeve down-hole hammer rig, during drilling construction, a unit head rotates forward and drives drilling tool to creep into, another unit head reverse drive casing drilling, can significantly improve efficiency of construction, but run into when beating deep hole, how faster and better stacks, female connector pipe equally just existing problems, there is deslagging exhaust not protection equally, the problem of contaminated environment.
Summary of the invention
The invention solves following problem: 1, realize the follow-up of overall process sleeve pipe, efficient jointed rod and sleeve pipe, promote integral construction efficiency; 2, the gas circuit design of direct circulation air inlet deslagging, is strapped in deslagging air-flow in sleeve pipe and protective cover, reduces environment pollution; 3, on unit head, be designed with buffer, down-hole hammer vibration reduced the destructiveness of machine, guarantees that the machine long-life operates.4, all oil circuits, gas circuit operation are integrated in driver's cabin, realize one man operation.
In order to solve the problems of the technologies described above, a kind of Large Diameter DTH Hammer hammer provided by the invention, comprise chassis, jib lubbing mechanism, master file wire rope, mast, unit head, inlet channel, drilling rod and gooseneck boom, described unit head adopts to lean forward and is arranged on described mast with displaceable structure, also comprise the sleeve pipe that a group can be inserted boring, also comprise a deslagging head, described deslagging head can dock with the upper end of described sleeve pipe, the slag notch of the deslagging head described in scum pipe upper end connects; The lower end of described mast is provided with flexible front leg strut, and pile chuck is connected with described flexible front leg strut.
Slide plate slides is arranged on described mast, described master file wire rope is connected with described slide plate, described slide plate slides and is provided with cross slide, be provided with sidesway oil cylinder between described slide plate and described cross slide, described unit head to be hinged on described cross slide and to be provided with the oil cylinder that leans forward between described cross slide and described unit head.
The center driving axle of described unit head slide up and down be arranged on described unit head the centre of gyration on, and be provided with damping spring or disc spring between the described upper and lower both ends or one end of center driving axle and described unit head.
The centre of gyration that described center driving axle is arranged on described unit head is that spline pair coordinates.
Also comprise asphalt channel and waterway channel, described asphalt channel and described waterway channel in parallel with described inlet channel, described asphalt channel, described waterway channel and described inlet channel have independent switch respectively, and described switch is located at outside or is located in drivers' cab.
Described drill bit and sleeve pipe adopt and link together when described unit head forward drive rotates, and throw off both when described unit head reverse drive rotates.
Described pile chuck adopts to be elevated with described flexible front leg strut and is connected.
Described deslagging head is connected with described unit head by hoist cylinder.
Adopt hoist engine to be connected with described deslagging head and control the flexible of described deslagging head.
The described employing of master file wire rope between described gooseneck boom and the pulley of described unit head has different lifting forces and the baudrier of hoisting velocity.
Adopt the Large Diameter DTH Hammer hammer of technique scheme, unit head is provided with sidesway and leans forward oil cylinder, realizes leaning forward and sideward sliding function of unit head gyrator, behind this functional realiey mast location, does not need telephone-moving namely to realize the object of female connector pipe.
Large Diameter DTH Hammer hammer of the present invention, be provided with pile chuck and be connected with flexible front leg strut, pile chuck has elevating function, can realize Fast Installation and align drilling rod, sleeve pipe.
Large Diameter DTH Hammer hammer of the present invention, the center driving axle of unit head can slide up and down, and the upper and lower both ends or one end of center driving axle are provided with damping spring or disc spring, realizes buffer shock-absorbing and eliminates the destruction of down-hole hammer vibration to machine.
Large Diameter DTH Hammer hammer of the present invention, is designed with inlet channel, lubricant passage way passage in parallel and waterway channel, automatically follow up at drilling process pipeline, each passage has the function opened and closed separately, can control, also can control in drivers' cab at outside hand-operated valve.
Large Diameter DTH Hammer hammer of the present invention, deslagging head has two kinds of modes to match arbitrarily.One connects unit head by one group of hoist cylinder, and another group hoist cylinder controls the flexible of deslagging head; Another kind adopts hoist engine to control the flexible of canvas cylinder.Guarantee deslagging not airborne dust, reduce the pollution of environment.
Large Diameter DTH Hammer hammer of the present invention, unit head can be utilized to drive down-the-hold drill bit and coordinate sleeve pipe follow-up method to realize omnidistance sleeve pipe retaining wall Major diameter downhole hammer creep into, down-the-hold drill bit can tackle creeping into of various soft or hard geology, sleeve pipe can prevent collapse hole, and the disturbance reduced around geological environment, be realize environmental protection, efficiently Major diameter downhole hammer bore mode.
The invention solves following problem: 1, realize the follow-up of overall process sleeve pipe, efficient jointed rod and sleeve pipe, promote integral construction efficiency; 2, the gas circuit design of direct circulation air inlet deslagging, is strapped in deslagging air-flow in sleeve pipe and protective cover, reduces environment pollution; 3, on unit head, be designed with buffer, down-hole hammer vibration reduced the destructiveness of machine, guarantees that the machine long-life operates.4, all oil circuits, gas circuit operation are integrated in driver's cabin, realize one man operation.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, is not formed the improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is structure chart of the present invention.
Fig. 2 is unit head working state figure of the present invention.
Fig. 3 is unit head rollover states stacks schematic diagram of the present invention.
Fig. 4 is that unit head sidesway state of the present invention transfers sleeve pipe state diagram.
Fig. 5 is construction method schematic diagram of the present invention.
Fig. 6 is drilling rod of the present invention and sleeve pipe construction sequence schematic diagram.
In figure: 1, chassis; 2, waterway channel; 3, asphalt channel; 4, jib lubbing mechanism; 5, mast; 6, inlet channel; 7, gooseneck boom; 8, master winch wire rope; 9, unit head; 10, hoist cylinder; 11, deslagging head; 12, scum pipe; 13, sleeve pipe; 14, drilling rod; 15, down-hole hammer; 16, drill bit; 17, flexible front leg strut; 18, pile chuck; 19, intake interface; 20, gasholder; 21, air compressor machine; 22, slide plate; 23, cross slide; 9a, spring; 9b, overturning oil cylinder; 9c, center driving axle; 9d, sidesway oil cylinder; 9e, gyrator.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
See Fig. 1, Large Diameter DTH Hammer hammer comprises chassis 1, waterway channel 2, asphalt channel 3, jib lubbing mechanism 4, mast 5, inlet channel 6, gooseneck boom 7, master file wire rope 8, unit head 9, hoist cylinder 10, deslagging head 11, scum pipe 12, sleeve pipe 13, drilling rod 14, down-hole hammer 15, drill bit 16, flexible front leg strut 17, pile chuck 18 and intake interface 19.Waterway channel 2 and asphalt channel 3 are all connected in parallel on inlet channel 6, and operation rig can control the open and close of each passage, regulate the size of open channel.Operation jib lubbing mechanism 4 controls hoisting of mast 5 and movable mast, facilitate the transport of machine with to hole.Be arranged on the One On The Chassis master winch to carry unit head 9 by master file wire rope 8 and slide up and down along the guide rail on mast 5, thus control the lifting of whole drilling system.Scum pipe 12 upper end connects the slag notch of deslagging head 11.Deslagging head 11 is connected with unit head 9 by hoist cylinder 10, or adopt hoist engine be connected with described deslagging head control described deslagging head stretch.Pile chuck 18 is connected on flexible front leg strut 17, utilizes flexible front leg strut cylinder movement can regulate the terrain clearance of pile chuck 18, facilitates extension bar and transport.The employing of master file wire rope 8 between gooseneck boom 7 and the pulley of unit head 9 has different lifting forces and the baudrier of hoisting velocity.
Drill bit 16 and sleeve pipe 13 adopt and link together when unit head 9 forward drive rotates, and throw off both when unit head 9 reverse drive rotates.
See Fig. 2, the unit head 9 of Large Diameter DTH Hammer hammer comprises spring 9a, overturning oil cylinder 9b, center driving axle 9c, sidesway oil cylinder 9d and gyrator 9e.Spring 9a is arranged on the two ends up and down of center driving axle 9c; the centre of gyration that center driving axle 9c is arranged on gyrator 9e is that spline pair coordinates, not only can transmitting torque but also can slide up and down, when down-hole hammer 15 works; spring 9a can play cushioning effect, protects each element.Slide plate 22 is slidably mounted on mast 5, master file wire rope 8 is connected with slide plate 22, slide plate 22 slides and is provided with cross slide 23, be provided with sidesway oil cylinder 9d between slide plate 22 and cross slide 23, unit head 9 to be hinged on cross slide 23 and to be provided with the oil cylinder 9b that leans forward between cross slide 23 and unit head 9.
Disc spring also can be set at the two ends up and down of center driving axle 9c and play cushioning effect.
See Fig. 3, during Major diameter downhole hammer drill power head 9 jointed rod 14, unit head 9 is transferred the bottom to mast 5, hydraulic oil drives overturning oil cylinder 9b to stretch out, now gyrator 9e overturns along connecting axle, center driving axle 9c interface is towards horizontal direction, and drilling rod 14 level is sling and moves by loop wheel machine, makes two interface docking.When unit head being slowly promoted to the top of mast 5, namely complete the installation of drilling rod 14.Adopt this brill mode that connects can to complete in the position that distance ground is not high, not only protect personal safety but also convenient and swift.
See Fig. 4, during Large Diameter DTH Hammer hammer mounting sleeve 13, unclamp the joint of drilling rod 14 and unit head 9, promote the top of unit head 9 to mast 5, drive hydraulic translational oil cylinder 9d to stretch out again, gyrator 9d is to a Slideslip, and now the space that sleeve pipe 13 is placed on position, hole abdicated by unit head 9, slowly move to directly over aperture with the loop wheel machine sleeve pipe 13 that plays again, then transfer to aperture.Adopt this unit head sidesway mode to transfer sleeve pipe 13, ensure that space is transferred in sleeve pipe 13 hanging, simple and convenient.
See Fig. 1, when jointed rod 14 and center driving axle 9c, need to shrink deslagging head 11 by hoist cylinder 10, abdicate the installing space of drilling rod 14 and center driving axle 9c.After sleeve pipe 13 installs, transfer deslagging head 11 by hoist cylinder 10, sleeve pipe 13 inserts in the sealing ring of deslagging head 11, ensure that the sealing of deslagging.
When each parts of Large Diameter DTH Hammer hammer are installed ready, state as shown in Figure 1, intake interface 19 is connected with inlet channel 6, then by the external air compressor machine 21 of intake interface 19 and gasholder 20, rig starts the work of holing.
See Fig. 5, open rig and air compressor machine work, unit head 9 is driven to turn clockwise, Compressed Gas enters gasholder 20 from air compressor machine 21, successively through intake interface 19, inlet channel 6, the center driving axle 9c of unit head 9, drilling rod 14 is to down-hole hammer 15, down-hole hammer 15 and drill bit 16 creep under the driving of Compressed Gas, transfer master winch wire rope 8 simultaneously, drill bit 16 is made to contact stratum, down-hole hammer 15 and drill bit 16 start broken rock, breaked rock stratum forms powder, return in the annular gap formed to drilling rod 14 and sleeve pipe 13 with waste gas one is the same, ground is expelled to again through deslagging head 11 and scum pipe 12.
In drilling process, according to geological condition demand, suitable open water paths 2 and asphalt channel 3, make oil enter inlet channel 6 with water with gas and vapor permeation and form mist of oil and water smoke, lubrication is played in the inside that mist of oil evenly enters into down-hole hammer 15.Water smoke is conducive to cooling drill bit and row's powder, prevents dust pollution.
In drilling process, unit head 9 keeps rotating forward, and sleeve pipe 13 and drill bit 16 remain and be connected and follow in drill bit 16 access aperture, play omnidistance retaining wall effect.
When piercing a sleeve pipe 13 with drilling rod 14 degree of depth, utilizing unit head 9 sideward sliding function to take over, continuing to be drilled to design hole depth.
Shown in Fig. 6 step 1, Large Diameter DTH Hammer hammer has been drilled to design hole depth.Shown in Fig. 6 step 2, now rig drives unit head 9 to reversely rotate, and sleeve pipe 13 and drill bit 16 are thrown off, and drilling rod 14, down-hole hammer 15 are up carried with unit head with drill bit 16.
Drilling rod 14 is in the dismounting of next root of clamping one of pile chuck, until drilling rod 14, down-hole hammer 15 all propose outside hole with drill bit 16.Shown in Fig. 6 step 3, only remaining sleeve pipe 13 in hole, now can carry out the construction such as hole and castinplace pile clearly.
Large Diameter DTH Hammer hammer of the present invention, can utilize single-power head to drive drill bit to coordinate sleeve pipe follow-up method to realize omnidistance sleeve pipe retaining wall Major diameter downhole hammer and creep into, effectively prevent collapse hole, do anything without election, be suitable for various geological conditions.
Large Diameter DTH Hammer hammer of the present invention adopts full-sleeve follow-up efficient solution to break off relations the drilling problems of most geological conditions, and working stability is reliable, and drilling efficiency is high, and intelligence degree is high, and required cost is low, mud-less pollution.
The foregoing is only the preferred embodiments of the present invention, to those skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a Large Diameter DTH Hammer hammer, comprise chassis (1), jib lubbing mechanism (4), master file wire rope (8), mast (5), unit head (9), inlet channel (6), drilling rod (14) and gooseneck boom (7), it is characterized in that: described unit head (9) adopts to lean forward and is arranged on described mast (5) with displaceable structure, also comprise the sleeve pipe (13) that a group can be inserted boring, also comprise a deslagging head (11), described deslagging head (11) can dock with the upper end of described sleeve pipe (13), the slag notch of the deslagging head (11) described in scum pipe (12) upper end connects, the lower end of described mast (5) is provided with flexible front leg strut (17), and pile chuck (18) is connected with described flexible front leg strut (17).
2. Large Diameter DTH Hammer hammer according to claim 1, it is characterized in that: slide plate (22) is slidably mounted on described mast (5), described master file wire rope (8) is connected with described slide plate (22), cross slide (23) is provided with in the upper slip of described slide plate (22), sidesway oil cylinder (9d) is provided with between described slide plate (22) and described cross slide (23), described unit head (9) is hinged on described cross slide (23) and goes up and be provided with the oil cylinder that leans forward (9b) between described cross slide (23) and described unit head (9).
3. Large Diameter DTH Hammer hammer according to claim 1 and 2, it is characterized in that: the center driving axle (9c) of described unit head (9) slide up and down be arranged on described unit head (9) the centre of gyration on, and described center driving axle (9c) is provided with damping spring or disc spring between both ends or one end and described unit head (9) up and down.
4. Large Diameter DTH Hammer hammer according to claim 3, is characterized in that: the centre of gyration that described center driving axle (11c) is arranged on described unit head (11) is that spline pair coordinates.
5. Large Diameter DTH Hammer hammer according to claim 1 and 2, it is characterized in that: also comprise asphalt channel (3) and waterway channel (2), described asphalt channel (3) and described waterway channel (2) in parallel with described inlet channel (6), described asphalt channel (3), described waterway channel (2) and described inlet channel (6) have independent switch respectively, and described switch is located at outside or is located in drivers' cab.
6. Large Diameter DTH Hammer hammer according to claim 1 and 2, it is characterized in that: described drill bit (16) and sleeve pipe (13) adopt and link together when described unit head (9) forward drive rotates, and throw off both when described unit head (9) reverse drive rotates.
7. Large Diameter DTH Hammer hammer according to claim 1 and 2, is characterized in that: described pile chuck (18) adopts to be elevated with described flexible front leg strut (17) and is connected.
8. Large Diameter DTH Hammer hammer according to claim 1 and 2, is characterized in that: described deslagging head (11) is connected with described unit head (9) by hoist cylinder (10).
9. Large Diameter DTH Hammer hammer according to claim 1 and 2, is characterized in that: adopt hoist engine to be connected with described deslagging head (11).
10. Large Diameter DTH Hammer hammer according to claim 1 and 2, is characterized in that: the employing of described master file wire rope (8) between described gooseneck boom (7) and the pulley of described unit head (9) has different lifting forces and the baudrier of hoisting velocity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510884134.9A CN105401878B (en) | 2015-12-03 | 2015-12-03 | A kind of Large Diameter DTH Hammer hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510884134.9A CN105401878B (en) | 2015-12-03 | 2015-12-03 | A kind of Large Diameter DTH Hammer hammer |
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| Publication Number | Publication Date |
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| CN105401878A true CN105401878A (en) | 2016-03-16 |
| CN105401878B CN105401878B (en) | 2019-04-09 |
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| CN201510884134.9A Active CN105401878B (en) | 2015-12-03 | 2015-12-03 | A kind of Large Diameter DTH Hammer hammer |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106120707A (en) * | 2016-08-22 | 2016-11-16 | 上海工程机械厂有限公司 | A kind of stirring processor |
| CN107939277A (en) * | 2017-12-20 | 2018-04-20 | 山河智能装备股份有限公司 | Low clearance dual AC power drilling machine and its construction method |
| CN108049825A (en) * | 2018-01-29 | 2018-05-18 | 上海广大基础工程有限公司 | A kind of jackrod structure with Telescopic protection hood |
| CN108301782A (en) * | 2017-12-29 | 2018-07-20 | 重庆邦略投资有限公司 | A kind of rotary drilling rig |
| CN109057721A (en) * | 2018-10-18 | 2018-12-21 | 北京中车重工机械有限公司 | A kind of rotary drilling rig and its jib lubbing mechanism |
| CN112746813A (en) * | 2019-10-30 | 2021-05-04 | 北京荣创岩土工程股份有限公司 | Telescopic drill rod and multifunctional telescopic high-pressure rotary jet drilling machine |
| CN113309467A (en) * | 2021-07-15 | 2021-08-27 | 张国 | Integrated automatic leveling full-casing down-the-hole drilling machine equipment and construction process thereof |
| US11719045B2 (en) | 2020-12-07 | 2023-08-08 | Eurodrill Gmbh | Drill drive device for an earth drilling apparatus |
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| CN104594802A (en) * | 2014-12-05 | 2015-05-06 | 陶德明 | Hydraulic combined impact hammer drilling machine |
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