CN104278946B - Grafting assembled water drilling rig - Google Patents
Grafting assembled water drilling rig Download PDFInfo
- Publication number
- CN104278946B CN104278946B CN201410559770.XA CN201410559770A CN104278946B CN 104278946 B CN104278946 B CN 104278946B CN 201410559770 A CN201410559770 A CN 201410559770A CN 104278946 B CN104278946 B CN 104278946B
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- frame
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- grafting
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B3/00—Rotary drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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 DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
Abstract
The present invention relates to water drilling rig, specifically a kind of grafting assembled water drilling rig, including the frame being made up of channel-section steel and/or angle bar, it is fixed on the power source in frame, change speed gear box, hoist engine, rotary head and pylon and the main drilling rod being located at turn around in head, the winding drum of hoist engine is fixed and is wound with suspension stay cord, one end of this suspension stay cord is fixed on elevator after the directive wheel on pylon, and this elevator is connected with carrying leader, and this carries leader lower section and is fixed with faucet；Described power source, hoist engine, change speed gear box and drilling well head are fixed in frame each through socket connection frame and locking stopping means, described be fixed in frame to due to the fact that described structure each through plug-in connection and locking stopping means and have the advantage, that simple in construction, handling are quick, be beneficial to carrying, improve well-digging efficiency, monomer weight is light, reduce labor intensity and well-digging is without region restriction.
Description
Technical field
The present invention relates to water drilling rig, especially a kind of simple in construction, handling are quick, be beneficial to carrying, improve well-digging efficiency, reduce labor intensity and without region limit grafting assembled water drilling rig.
Background technology
Water drilling rig is called again water drilling rig equipment, water drilling rig has different working methods, it is mainly direct circulation and Pump breath countercirculate formula, the operation principle of water drilling rig is very simple, mainly under the effect of atmospheric pressure, drilling fluid by sedimentation tank through backwater ditch along the annular gap stream of wellhole to shaft bottom, rotating disk now drives drilling rod, bit is driven to creep into, the negative pressure set up by slush pump suction sucks drilling rod inner chamber chip mud, rise to faucet subsequently, sedimentation tank is entered through slush pump, drilling fluid after precipitation continues to flow into wellhole, so so go round and begin again, define and reverse circulating creep into work, this constitutes the operation principle of water drilling rig equipment.For direct circulation formula water drilling rig, drilling fluid enters from drilling rod, flows out from well head, defines direct circulation formula water drilling rig.And the operation principle of reacting cycle formula water drilling rig is, drilling fluid, from drilling rod sucking-off, flows into from well head.
The water drilling rig of prior art generally comprises frame, is positioned at the power source in frame, for lifting the hoist engine of drilling rod, change speed gear box, the stay cord pylon with spider and head composition.But, the power source of prior art, it is all fixed with frame bolt by himself base to be connected for lifting the hoist engine of drilling rod, change speed gear box, the stay cord pylon with spider and head, this connected mode quite takes time and effort when handling, and not readily transportable.Existing water drilling rig is transported to construction well-digging place typically via transport vehicle, but need a dead lift on China hills or mountain area, own wt due to water drilling rig associated components, the place of the well-digging of needs cannot be carried to, cause some local because water drilling rig transport to well-digging point cannot be abandoned well-digging, make small-sized water drilling rig cannot realize comprehensive well-digging, there is region limitation.
In sum, the water drilling rig structure of prior art is complicated, bulky, weight is big, be unfavorable for carrying, that handling are wasted time and energy, workman works is powerful and the well-digging preparation time is long, and well-digging efficiency is low.
Summary of the invention
It is an object of the invention to provide a kind of simple in construction, handling are quick, be beneficial to carrying, improve well-digging efficiency, reduce labor intensity and without region limit grafting assembled water drilling rig.
Employed technical scheme comprise that such for achieving the above object, i.e. a kind of grafting assembled water drilling rig, including the frame being made up of channel-section steel and/or angle bar, it is fixed on the power source in frame, change speed gear box, hoist engine, rotary head and pylon and the main drilling rod being located at turn around in head, the winding drum of hoist engine is fixed and is wound with suspension stay cord, one end of this suspension stay cord is fixed on elevator after the directive wheel on pylon, this elevator is connected with carrying leader, this carries leader lower section and is fixed with faucet, this faucet is provided with the water pipe for drilling fluid water conservancy diversion, the body of rod of described main drilling rod inserts in rotary head and is controlled its rotation by rotary head；It is characterized in that: described power source, hoist engine, change speed gear box and drilling well head each through socket connection frame and locking stopping means be fixed in frame, described each through plug-in connection and locking stopping means be fixed in frame；
Described power source is positioned at frame bottom-rear, and change speed gear box and hoist engine horizontal Tile are positioned at top, frame rear, and rotary head is positioned at frame upper front part；
Belt pulley or chain wheel I on the output shaft I of power source are connected with the belt pulley with clutch on the power shaft I of change speed gear box or chain wheel II by belt or chain, and the output shaft II of change speed gear box is connected with the Hooks coupling universal coupling II on the power shaft III of rotary head by universal shaft coupling device I；The output shaft II of change speed gear box is additionally provided with output gear, and this output gear engages with the idler gear on centrally located axle, and described jackshaft is held within the support plate on gear-box case, and described idler gear engages with the power input gear of hoist engine；
Described socket connection frame includes again grafting channel-section steel or angle bar, and the base of described grafting channel-section steel or angle bar is Plug Division；Being fixed with spacing grafting block in change speed gear box installation portion place frame, form the grafting chamber mated with Plug Division between this spacing grafting block and frame, described Plug Division is inserted in grafting chamber and is vertically positioned；
Described locking stopping means includes again the hinge being fixed in next-door neighbour rotary head installation portion place frame, the leaf of hinge II of this hinge is fixed in next-door neighbour rotary head installation portion place frame, additionally along axis of rotation under a piece of leaf of hinge I External Force Acting, being fixed with tie down screw mounting seat on the top panel of leaf of hinge I, tie down screw is through the screwed hole in tie down screw mounting seat and threadeds with this screwed hole.
Due to the fact that said structure has the advantage, that the connected mode of drilling components is connected by original bolt and changes grafting locking into, being capable of quick despatch, each parts can individually transport, and is beneficial to carrying, reduce the labor intensity of workman, dig a well and limit without region.
Accompanying drawing explanation
The present invention can be further illustrated by the nonlimiting examples that accompanying drawing provides.
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of frame of the present invention and pedestal one.
Fig. 3 is the structural representation of frame of the present invention and pedestal junction.
Fig. 4 is the structural representation of pedestal of the present invention.
Fig. 5 is the structural representation that power source of the present invention is connected to frame place.
Fig. 6 is the structural representation that change speed gear box of the present invention is connected to frame place.
Fig. 7 is the structural representation that rotary head of the present invention is connected to frame place.
Fig. 8 is the structural representation that hoist engine of the present invention is connected to frame place.
Fig. 9 is the structural representation of socket connection frame of the present invention and frame junction.
Figure 10 is the structural representation that the present invention locks stopping means.
In figure: in figure: 1, frame；101, frame grafting block；102, pedestal；103, framework；104, a vertical stay tube；105, horizontal support pipe；106, grafting chamber；107, frame limited block；108, hinge；101、；2, power source；3, socket connection frame；301, grafting channel-section steel or angle bar；302, Plug Division；303, spacing grafting block；304, grafting chamber；4, change speed gear box；401, power shaft I；402, belt pulley with clutch or chain wheel II；403, output shaft II；404, universal shaft coupling device I；405, output gear；406, idler gear；5, hoist engine；501, power input gear；6, locking stopping means；601, leaf of hinge II；602, rotating shaft；603, leaf of hinge I；604, tie down screw mounting seat；605, tie down screw；606, fixed via；7, rotary head；701, power shaft III；702, Positioning hinge；703, hinge axis；704, leaf of hinge III；705, leaf of hinge IV；706, Hooks coupling universal coupling II；8, main drilling rod；9, belt or chain；10, stay cord is hung；11, leader is carried；12, faucet；13, water pipe；14, pylon；1401, outer arm；1402, inner arm；1403, directive wheel；15, pressue device；1501, handwheel.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described:
Referring to accompanying drawing 1 to 10, grafting assembled water drilling rig in figure, including the frame 1 being made up of channel-section steel and/or angle bar, it is fixed on the power source 2 in frame 1, change speed gear box 4, hoist engine 5, rotary head 7 and pylon 14 and the main drilling rod 8 being located at turn around in head 7, on the winding drum of hoist engine 5, fixing being wound with hangs stay cord 10, one end of this suspension stay cord 10 is fixed on elevator after the directive wheel on pylon 14, this elevator is connected with carrying leader 11, this carries and is fixed with faucet 12 below leader 11, this faucet 12 is provided with the water pipe 13 for drilling fluid water conservancy diversion, the body of rod of described main drilling rod 8 inserts in rotary head 7 and is controlled its rotation by rotary head 7；It is characterized in that: described power source 2, hoist engine 5, change speed gear box 4 and drilling well head 7 each through socket connection frame 3 and locking stopping means 6 be fixed in frame, described each through plug-in connection and locking stopping means 6 be fixed in frame；
Described power source 2 is positioned at frame 1 bottom-rear, and change speed gear box 4 and hoist engine 5 horizontal Tile are positioned at top, frame 1 rear, and rotary head 7 is positioned at frame 1 upper front part；
Belt pulley or chain wheel I 202 on the output shaft I 201 of power source 2 are connected with the belt pulley with clutch on the power shaft I 401 of change speed gear box 4 or chain wheel II 402 by belt or chain 9, and the output shaft II 403 of change speed gear box 4 is connected with the Hooks coupling universal coupling II 706 on the power shaft III 701 of rotary head 7 by universal shaft coupling device I 404；The output shaft II 403 of change speed gear box 4 is additionally provided with output gear 405, this output gear 405 engages with the idler gear 406 on centrally located axle, described jackshaft is held within the support plate on change speed gear box 4 shell, and described idler gear 406 engages with the power input gear 501 of hoist engine 5；
Described socket connection frame 3 includes again grafting channel-section steel or angle bar 301, and the base of described grafting channel-section steel or angle bar 301 is Plug Division 302；Being fixed with spacing grafting block 303 in change speed gear box installation portion 5 place frame 4, form the grafting chamber 304 mated with Plug Division 302 between this spacing grafting block 303 and frame 4, described Plug Division 302 is inserted in grafting chamber 304 and is vertically positioned；
Described locking stopping means 6 includes again the hinge being fixed in next-door neighbour rotary head installation portion 5 place frame 4, the leaf of hinge II 601 of this hinge is fixed in next-door neighbour rotary head installation portion 5 place frame 4, additionally rotate along rotating shaft 602 under a piece of leaf of hinge I 603 External Force Acting, being fixed with tie down screw mounting seat 604 on the top panel of leaf of hinge I 603, tie down screw 605 is through the screwed hole in tie down screw mounting seat 604 and threadeds with this screwed hole.In this embodiment, grafting packaged rig, easy to loading and unloading, saving of work and time.When using threaded, installing machine operator will first to hole, tightening of another screw；Teardown of engine screw one by one again is unscrewed, and suitable is time-consuming.Owing to often tightening of screw is unscrewed, screw is also easily damaged, and is also easy to therefore cause the screw in work progress to come off, even falls into the accidents such as bit freezing that cause in well.Grafting handling screw is relatively few a lot, and screw is not generally unscrewed and tightened, so screw is substantially without loosening.Due to grafting packaged rig, it is by each grafting part, makes what the laggard luggage of standardized module unloaded, if so constructing or that module damage in handling process, directly this module be can buy back from producer, it is possible to directly use, user cost and maintenance maintenance time greatly reduced.
In above-described embodiment, it is preferable that: the plate body of described leaf of hinge II 601 is provided with fixed via 606, by being fixed in next-door neighbour rotary head installation portion 5 place frame 4 by this leaf of hinge II 601 through the fixing bolt of fixed via 606.
In above-described embodiment, it is preferable that: it is fixed with frame grafting block 101 bottom described frame 1, this frame grafting block 101 is plugged with pedestal 102；
Described pedestal 102 includes again
The day font framework 103 enclosed by five hollow tubes, framework 103 1 opposite hollow body is a vertical stay tube 104, and other three hollow tubes are horizontal support pipe 105；
Being provided with the frame limited block 107 of outwardly convex on the tube wall of described horizontal support pipe 105, be formed with grafting chamber 106 between this frame limited block 107 and tube wall, this grafting chamber 106 is mated with frame grafting block 101；
Closest to the hinge 108 being provided with limiting locking between frame grafting block 101 and this vertical stay tube 104 of one vertical stay tube 104, a piece of leaf of hinge of this hinge 108 is fixed with a vertical stay tube 104, and another sheet leaf of hinge of hinge 108 is fixed with frame 1.In this embodiment, tube-welding form, be the arc box and pin that the big stress of contact area is good with connecting of frame, add hinge location and realize quickly and frame handling.Effect is in that to add rig width, thus strengthening rig stationarity, in wellbore construction, frame will not be rocked, it is simple to rig is installed, and reduces the smooth location of wellbore construction, it is simple to increase the counterweight of rig, it is possible to quick smoothly moving station.Pedestal can increase frame strength, and in wellbore construction process, machine is substantially without displacement.
In above-described embodiment, it is preferable that: described frame grafting block 101 is arc block, and the limited block frame limited block 107 matched is also for arc block.
In above-described embodiment, preferably: described pylon 14 is one-armed tower, and this one-armed tower includes again outer arm 1401, is arranged in the inner arm 1402 of outer arm 1401 inner chamber, being positioned at the directive wheel 1403 at inner arm 1402 top, described outer arm 1401 is fixed in frame 1 by hinge or the mounting seat that is positioned on outer arm 1401.In this embodiment, similar to the arm of autocrane, it is connected with frame with upper and lower two hinges.But it is that manpower draws steel wire rope to stretch out by inner arm here, with in own wt retraction outer arm.It is easy to carrying after retraction and handling are risen and fallen pylon.The height required for wellbore construction is just had after stretching out.Also having a very big advantage is that after can being retracted by tower when bit freezing, over loading pulls out of hole.Because the intensity after retracting is more than 4 times stretched out.Handling economize the time of several times than three foot towers.When coordinating three foot towers to use, it is possible to rise with one-armed tower and put three foot towers.Fast and safely light.Rising and put tower and can carry out from both direction, the construction direction of the tower that can select in the place of condition restriction to rise and fall, so practicality is very strong.There is pulley on inner arm top, for support steel cord lifting and guiding.For preventing because of inner arm and outer arm collision deformation when own wt is retracted, there are a protection band, stretching without influence on one-armed tower after shock in interior outer arm top.
In above-described embodiment, it is preferable that: described rotary head 7 side wall of outer shell is provided with pressue device 15, by the handwheel 1501 being arranged on pressue device 15, main drilling rod 8 is pressurizeed.In this embodiment, the faucet of main drilling rod is provided with and has at least a pulley, during pressurization, having steel wire rope, steel wire rope one end to be fixed on pressurization reel on pressue device, one end is fixed with hook, during pressurization, steel wire rope is pulled out, pulley on the faucet of main drilling rod, is suspended to after guiding on the head on pressue device opposite of rotary head, moves handwheel rotary tightening steel wire rope and just can main drilling rod be pressurizeed.This is a kind of pressuring method, it is also possible to the pressurization of hydraulic-driven handwheel；Using one-armed tower as guide rail pressure (hydraulic) water tap place, so can also can do by the main brill of righting, make main brill do and do not rock, hole also straight.
In above-described embodiment, preferably: described rotary head 7 side wall of outer shell or be located at turn around a piece of leaf of hinge III 704 of socket connection frame bottom head 73 and Positioning hinge 702 and fix, another sheet leaf of hinge IV 705 of this Positioning hinge 702 is fixed in frame 1, the hinge axis 703 of this Positioning hinge 702 is fixed on leaf of hinge III 704, described hinge axis 703 inserts in the through hole on leaf of hinge IV 705, rotates under External Force Acting in the whole rotary head 7 through hole on leaf of hinge IV 705.In this embodiment, this structure can make the aperture of the fully out drilling well of head, and after opening head, the drill bit of maximum drilling diameter can directly propose from frame.Compare hydraulic pressure telephone-moving and get out of the way aperture low cost of manufacture.The head of different no-load voltage ratio can also be changed easily, reach high rotating speed or the instructions for use of big torque.Machine volume weight during big torque is little relative to rock-core borer with cost a lot, because not having special bulky reductor, this deceleration just can be substituted by the head of big speed ratio.
The installation direction of locking stopping means is decided according to the actual requirements, and accompanying drawing shall not be construed as limitation of the invention.
Obviously, above-mentioned all embodiments are a part of embodiments of the present invention, rather than whole embodiments.Based on embodiment of the present invention, all other embodiments that those skilled in the art obtain under not making creative work premise, broadly fall into the category of present invention protection.
In sum, due to said structure, simple in construction, handling are quick, be beneficial to carrying, improve well-digging efficiency, reduce labor intensity and well-digging is without region restriction.
Claims (7)
1. a grafting assembled water drilling rig, including the frame (1) being made up of channel-section steel and/or angle bar, it is fixed on the power source (2) in frame (1), change speed gear box (4), hoist engine (5), rotary head (7) and pylon (14) and the main drilling rod (8) being located at turn around in head (7), on the winding drum of hoist engine (5), fixing being wound with hangs stay cord (10), one end of this suspension stay cord (10) is fixed on elevator after the directive wheel on pylon (14), this elevator is connected with carrying leader (11), this carries leader (11) lower section and is fixed with faucet (12), this faucet (12) is provided with the water pipe (13) for drilling fluid water conservancy diversion, the body of rod of described main drilling rod (8) inserts in rotary head (7) and is controlled its rotation by rotary head (7)；It is characterized in that: described power source (2), hoist engine (5), change speed gear box (4) and drilling well head (7) are fixed in frame each through socket connection frame (3) and locking stopping means (6)；
Described power source (2) is positioned at frame (1) bottom-rear, and change speed gear box (4) and hoist engine (5) horizontal Tile are positioned at frame (1) top, rear, and rotary head (7) is positioned at frame (1) upper front part；
Belt pulley or chain wheel I (202) on the output shaft I (201) of power source (2) are connected with the belt pulley with clutch on the power shaft I (401) of change speed gear box (4) or chain wheel II (402) by belt or chain (9), and the output shaft II (403) of change speed gear box (4) is connected with the Hooks coupling universal coupling II (706) on the power shaft III (701) of rotary head (7) by universal shaft coupling device I (404)；The output shaft II (403) of change speed gear box (4) is additionally provided with output gear (405), this output gear (405) engages with the idler gear (406) on centrally located axle, described jackshaft is held within the support plate on change speed gear box (4) shell, and described idler gear (406) engages with the power input gear (501) of hoist engine (5)；
Described socket connection frame (3) includes again grafting channel-section steel or angle bar (301), and the base of described grafting channel-section steel or angle bar (301) is Plug Division (302)；Change speed gear box installation portion (5) place frame (4) is fixed with spacing grafting block (303), forming the grafting chamber (304) mated with Plug Division (302) between this spacing grafting block (303) and frame (4), described Plug Division (302) are inserted in grafting chamber (304) and are vertically positioned；
Described locking stopping means (6) includes again the hinge being fixed on next-door neighbour rotary head installation portion (5) place frame (4), the leaf of hinge II (601) of this hinge is fixed on next-door neighbour rotary head installation portion (5) place frame (4), additionally a piece of leaf of hinge I (603) rotates along rotating shaft (602) under external force, being fixed with tie down screw mounting seat (604) on the top panel of leaf of hinge I (603), tie down screw (605) is through the screwed hole in tie down screw mounting seat (604) and threadeds with this screwed hole.
2. grafting assembled water drilling rig according to claim 1, it is characterized in that: the plate body of described leaf of hinge II (601) is provided with fixed via (606), by this leaf of hinge II (601) being fixed on next-door neighbour rotary head installation portion (5) place frame (4) through the fixing bolt of fixed via (606).
3. grafting assembled water drilling rig according to claim 1, it is characterised in that: described frame (1) bottom is fixed with frame grafting block (101), and this frame grafting block (101) is plugged with pedestal (102)；
Described pedestal (102) includes again
By day font framework (103) that five hollow tubes enclose, framework (103) opposite hollow body is a vertical stay tube (104), and other three hollow tubes are horizontal support pipe (105)；
Being provided with the frame limited block (107) of outwardly convex on the tube wall of described horizontal support pipe (105), be formed with grafting chamber (106) between this frame limited block (107) and tube wall, this grafting chamber (106) is mated with frame grafting block (101)；
Closest to the hinge (108) being provided with limiting locking between frame grafting block (101) and this vertical stay tube (104) of one vertical stay tube (104), the a piece of leaf of hinge of this hinge (108) is fixed with a vertical stay tube (104), and another sheet leaf of hinge of hinge (108) is fixed with frame (1).
4. grafting assembled water drilling rig according to claim 3, it is characterised in that: described frame grafting block (101) is arc block, and limited block frame limited block (107) matched is also for arc block.
5. grafting assembled water drilling rig according to claim 1, it is characterized in that: described pylon (14) is one-armed tower, this one-armed tower includes again outer arm (1401), it is arranged in the inner arm (1402) of outer arm (1401) inner chamber, being positioned at the directive wheel (1403) at inner arm (1402) top, described outer arm (1401) is fixed in frame (1) by hinge or the mounting seat that is positioned on outer arm (1401).
6. grafting assembled water drilling rig according to claim 1, it is characterised in that: described rotary head (7) side wall of outer shell is provided with pressue device (15), by the handwheel (1501) being arranged on pressue device (15), main drilling rod (8) is pressurizeed.
7. the grafting assembled water drilling rig according to claim 1 or 6, it is characterized in that: a piece of leaf of hinge III (704) of described rotary head (7) side wall of outer shell or the socket connection frame (3) and the Positioning hinge (702) that are located at turn around head (7) bottom is fixed, another sheet leaf of hinge IV (705) of this Positioning hinge (702) is fixed in frame (1), the hinge axis (703) of this Positioning hinge (702) is fixed on leaf of hinge III (704), described hinge axis (703) inserts in the through hole on leaf of hinge IV (705), under External Force Acting, the whole rotary head (7) through hole on leaf of hinge IV (705) rotates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410559770.XA CN104278946B (en) | 2014-10-19 | 2014-10-19 | Grafting assembled water drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410559770.XA CN104278946B (en) | 2014-10-19 | 2014-10-19 | Grafting assembled water drilling rig |
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| Publication Number | Publication Date |
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| CN104278946A CN104278946A (en) | 2015-01-14 |
| CN104278946B true CN104278946B (en) | 2016-07-06 |
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| CN201410559770.XA Active CN104278946B (en) | 2014-10-19 | 2014-10-19 | Grafting assembled water drilling rig |
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| CN107011195B (en) * | 2017-03-31 | 2019-04-09 | 华南理工大学 | A method of passing through catalysis oxidation one-step synthesis a-amino acid esters compound |
| CN111594037A (en) * | 2020-06-19 | 2020-08-28 | 武义县镀石机械设备有限公司 | Small-size combined type well rig with flexible function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS5210801B1 (en) * | 1970-10-06 | 1977-03-26 | ||
| CN200985744Y (en) * | 2006-12-17 | 2007-12-05 | 郑州宇通重工有限公司 | Spiral drilling type rotary digging drill |
| CN202417306U (en) * | 2012-01-11 | 2012-09-05 | 张家口市宣化金科钻孔机械有限公司 | Novel water well drilling machine |
| CN204163618U (en) * | 2014-10-19 | 2015-02-18 | 唐浪钦 | Grafting assembly type water drilling rig |
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