CN104372792B - A kind of positive and negative headstock of cement-soil mixing pile machine and mixing pile machine - Google Patents
A kind of positive and negative headstock of cement-soil mixing pile machine and mixing pile machine Download PDFInfo
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- CN104372792B CN104372792B CN201410623998.0A CN201410623998A CN104372792B CN 104372792 B CN104372792 B CN 104372792B CN 201410623998 A CN201410623998 A CN 201410623998A CN 104372792 B CN104372792 B CN 104372792B
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- rotating shaft
- headstock
- mixing pile
- pile machine
- cement
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
-
- 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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
Abstract
The invention provides the positive and negative headstock of a kind of cement-soil mixing pile machine, comprise at least one power set be mounted in well subrack; Power set comprise drive unit, and drive unit is connected with epicyclic gearbox, and the middle part of epicyclic gearbox is provided with hollow channel, are provided with the rotating shaft of hollow in hollow channel; Rotating shaft is connected with spray head.The positive and negative headstock of a kind of cement-soil mixing pile machine provided by the invention and mixing pile machine, structure is simple, whole machine weight is reduced, conveniently moving, easy to use; Change the position of spray head, promote utilization rate, Loss reducing; Spray head easy disassembly, maintenance maintenance is convenient, avoids the damage thinking the spray head caused that rubs, cost-saving; In the middle part of epicyclic gearbox rotating shaft by hollow channel and planetary gear isolated, in filling process, can have been linked up by rotating shaft and complete stirring more smoothly, not only increase operation rate, and avoid slurries and enter in epicyclic gearbox, reduce repair rate, time saving and energy saving.
Description
Technical field
The present invention relates to piling apparatus technical field, especially relate to the positive and negative headstock of a kind of cement-soil mixing pile machine and mixing pile machine.
Background technology
Cement mixing method is a kind of method for reinforcing the low ground of saturated soft clay, it utilizes cement as curing compound, pass through Mixing Machine, in ground depths by weak soil and curing compound action of forced stirring, utilize the series of physical chemical reaction produced between curing compound and weak soil, weak soil is hardened into have the high-quality ground of globality, water stability and some strength.
At present, conventional mixing pile machine comprises the parts such as support, well cabinet frame, headstock, drilling rod and drill bit.Headstock jointed rod, controls drilling rod and stirs weak soil, then to passing into cement in it, stir weak soil and cement mixing shaping, wherein, headstock is arranged on well cabinet frame, and can according to the degree of depth of drilling rod, well cabinet frame moves both vertically, and well cabinet frame is arranged on support, to its fixation of well cabinet frame.
But there is following shortcoming in the headstock used at present:
1, the structure of piling mixer headstock is all from top to bottom for motor, reductor, centre add spray head, bottom is gear-box, last brandreth of loading onto outside is formed, traditional piling mixer due to building block more, and the heavier-weight of individual part own, thus cause whole piling mixer heavier-weight, mobile difficulty;
The spray head of 2, driving piles in mixer power case structure, because friction, easily causes spray head to damage, and spray head is generally all in pile driver middle part, once spray head damages, be difficult to change, needing to carry out dismounting could change, and loses time, energy;
3, when mixer power case structure of driving piles works, spray head, once damage, is difficult to discover, particularly mud wherein very easily enters gear-box below, and gear box structure is because high strength friction, can cause the wearing and tearing of gear-box, whole piling mixer cannot carry out normal operation.
In a word, mixing pile machine conventional at present, the defect due to its structure design causes its weight comparatively large, and not easily move, and spray head is fragile, slurries easily enter gear-box inconvenient maintenance, impact uses.
Summary of the invention
The object of the present invention is to provide the positive and negative headstock of a kind of cement-soil mixing pile machine and mixing pile machine, cause its weight larger to solve the defect due to its structure design existed in prior art, not easily move, and spray head is fragile, slurries easily enter gear-box inconvenient maintenance, the technical problem that impact uses.
The positive and negative headstock of a kind of cement-soil mixing pile machine provided by the invention, comprises at least one power set be mounted in well subrack;
Described power set comprise drive unit, and described drive unit is connected with epicyclic gearbox, and described epicyclic gearbox is located at the below of described drive unit, and the middle part of described epicyclic gearbox is provided with hollow channel, are provided with the rotating shaft of hollow in described hollow channel;
One end away from described drive unit of described rotating shaft is used for jointed rod, and described rotating shaft is connected with spray head.
Further, described drive unit is hydraulic motor.Relative to mixing pile machine common at present, main purpose drive unit being changed to hydraulic motor is in order to when not reducing Power output, alleviates the weight of integral power case; When whole power case structure simplifies, pass through again the weight reducing drive unit, thus overall weight is reduced, then make the weight of whole stake machine reduce, mobile flexible, convenient.
Further, the headstock of this mixing pile machine comprises power set described in two groups, the upper and lower arranged opposite of power set described in two groups, and described in two groups, the described epicyclic gearbox of power set is respectively upper planetary gear case and lower planetary gear case;
Be provided with the first rotating shaft in the hollow channel of described upper planetary gear case, in the hollow channel of described lower planetary gear case, be provided with the second rotating shaft;
Described first rotating shaft is successively through described upper planetary gear case and described lower planetary gear case, described second rotating shaft is through described lower planetary gear case, described first rotating shaft is located in described second rotating shaft, and described first rotating shaft is connected by connecting shaft cover with described second rotating shaft;
The bottom of described first rotating shaft is for connecting interior drilling rod, and the bottom of described second rotating shaft is for connecting outer drilling rod;
Described spray head is located at described first rotating shaft one end away from described lower planetary gear case.
Mixing pile machine common at present, headstock generally comprises a support, support is generally arranged one group of power set, in this mixing pile machine, after simplifying the structure, reducing weight, can arrange several groups of power set, namely support can be born and be organized power set more, but its gross weight is still less than the weight of original headstock more.Wherein, preferably, can arrange two groups of power set, shape two groups of power set of slinging both had improve the utilization rate of product successively, also can save the regular hour, raise the efficiency.
Further, the direction of rotation of described first rotating shaft and described second rotating shaft is contrary.The direction of rotation of the first rotating shaft and the second rotating shaft is contrary, namely achieves two-way stirring, drives corresponding rotating shaft separately, thus realizes two-way stirring cement-soil, and it is more convenient to run.
Further, described first rotating shaft and described second rotating shaft are flange shaft.Two flange shaft are joined together to form the passage of a sealing, can complete grouting smoothly, stir, and avoid that cement occurs and will enter in epicyclic gearbox, affect its phenomenon normally used and occur.
Further, described spray head is located at described rotating shaft one end away from described drilling rod.No matter spray head is arranged on the end of rotating shaft, i.e. the end of hollow channel, be install or dismounting, all for convenience, more time saving and energy saving.
Further, described power set and described epicyclic gearbox are located on support, and described support is connected with well subrack.Wherein, support can arrange one or more groups power set, many group power set not only increase operating efficiency, with can, just achieving, wraparound moves flange shaft, two-way stirring, effect is better.
Further, described epicyclic gearbox is enclosed with overcoat.In order to avoid epicyclic gearbox is corroded, wrap up overcoat thereon, wherein, overcoat can be skin of paint or protecting film etc., can effectively avoid epicyclic gearbox to be corroded, degenerate.
A kind of mixing pile machine, comprise support, described support is connected with well subrack, described well subrack is connected with the positive and negative headstock of above-mentioned cement-soil mixing pile machine, and the positive and negative headstock of described cement-soil mixing pile machine is connected with drilling rod.
The positive and negative headstock of a kind of cement-soil mixing pile machine provided by the invention and mixing pile machine, original headstock is structurally optimized, by original three layer construction, the i.e. structure of power set, spray head and gear-box, be optimized for double-layer structure: power set and epicyclic gearbox, wherein, spray head can be arranged in the hollow channel of epicyclic gearbox, stir demand according to different piling, spray head can be arranged on the position of differing heights.
Its advantage is:
1, the structure of this headstock is simple, whole machine weight is reduced, conveniently moving, easy to use;
2, change the position of spray head, promote utilization rate, Loss reducing; Spray head easy disassembly, maintenance maintenance is convenient, meanwhile, avoids the damage thinking the spray head caused that rubs, cost-saving;
3, in the middle part of epicyclic gearbox rotating shaft by hollow channel and planetary gear isolated, in filling process, can have been linked up by rotating shaft and complete stirring more smoothly, not only increase operation rate, and avoid slurries and enter in epicyclic gearbox, reduce repair rate, time saving and energy saving.
Accompanying drawing explanation
In order to be illustrated more clearly in the specific embodiment of the invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in detailed description of the invention or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The front view of the positive and negative headstock of a kind of cement-soil mixing pile machine that Fig. 1 provides for the embodiment of the present invention.
Reference numeral:
1-hollow channel; 2-upper planetary gear case; 3-lower planetary gear case;
4-first rotating shaft; 5-second rotating shaft; 6-spray head;
7-hydraulic motor.
Detailed description of the invention
Be clearly and completely described technical scheme of the present invention below in conjunction with accompanying drawing, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In describing the invention, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second ", " the 3rd " only for describing object, and can not be interpreted as instruction or hint relative importance.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
The front view of the positive and negative headstock of a kind of cement-soil mixing pile machine that Fig. 1 provides for the embodiment of the present invention; As shown in Figure 1, the positive and negative headstock of a kind of cement-soil mixing pile machine that the present embodiment provides, comprises at least one power set be mounted in well subrack;
Power set comprise drive unit, and drive unit is connected with epicyclic gearbox, and epicyclic gearbox is located at the below of drive unit, and the middle part of epicyclic gearbox is provided with hollow channel 1, is provided with the rotating shaft of hollow in hollow channel 1;
One end away from drive unit of rotating shaft is used for jointed rod, rotating shaft is connected with spray head 6.
Drive unit be hydraulic motor 7 relative to mixing pile machine common at present, main purpose drive unit being changed to hydraulic motor 7 is in order to when not reducing Power output, alleviates the weight of integral power case; When whole power case structure simplifies, pass through again the weight reducing drive unit, thus overall weight is reduced, then make the weight of whole stake machine reduce, mobile flexible, convenient.
Wherein, the headstock of this mixing pile machine comprises two groups of power set, two groups of upper and lower arranged opposite of power set, and the epicyclic gearbox of two groups of power set is respectively upper planetary gear case 2 and lower planetary gear case 3;
Be provided with the first rotating shaft 4 in the hollow channel 1 of upper planetary gear case 2, in the hollow channel 1 of lower planetary gear case 3, be provided with the second rotating shaft 5;
First rotating shaft 4 is located in the second rotating shaft 5 through upper planetary gear case 2 and lower planetary gear case 3, second rotating shaft 5 through lower planetary gear case 3, first rotating shaft 4 successively, and the first rotating shaft 4 is connected by connecting shaft cover with the second rotating shaft 5;
The bottom of the first rotating shaft 4 is for connecting interior drilling rod, and the bottom of the second rotating shaft 5 is for connecting outer drilling rod;
Mixing pile machine common at present, headstock generally comprises a support, support is generally arranged one group of power set, in this mixing pile machine, after simplifying the structure, reducing weight, can arrange several groups of power set, namely support can be born and be organized power set more, but its gross weight is still less than the weight of original headstock more.Wherein, preferably, can arrange two groups of power set, shape two groups of power set of slinging both had improve the utilization rate of product successively, also can save the regular hour, raise the efficiency.
The direction of rotation of the first rotating shaft 4 and the second rotating shaft 5 is contrary.The direction of rotation of the first rotating shaft 4 and the second rotating shaft 5 is contrary, namely achieves two-way stirring, drives corresponding rotating shaft separately, thus realizes two-way stirring cement-soil, and it is more convenient to run.
First rotating shaft 4 and the second rotating shaft 5 are flange shaft, and two flange shaft are joined together to form the passage of a sealing, can complete grouting smoothly, stir, and avoid that cement occurs and will enter in epicyclic gearbox, affect its phenomenon normally used and occur.
Spray head 6 is located at rotating shaft one end away from drilling rod.No matter spray head 6 is arranged on the end of rotating shaft, i.e. the end of hollow channel 1, be install or dismounting, all for convenience, more time saving and energy saving.
Power set and epicyclic gearbox are located on support, and support is connected with well subrack.Wherein, support can arrange one or more groups power set, many group power set not only increase operating efficiency, with can, just achieving, wraparound moves flange shaft, two-way stirring, effect is better.
Epicyclic gearbox is enclosed with overcoat.In order to avoid epicyclic gearbox is corroded, wrap up overcoat thereon, wherein, overcoat can be skin of paint or protecting film etc., can effectively avoid epicyclic gearbox to be corroded, degenerate.
During concrete use:
Independent power set: only include an epicyclic gearbox in headstock, epicyclic gearbox connecting fluid pressure motor, in the hollow channel 1 of epicyclic gearbox, flange shaft is set, by the rotation of epicyclic gearbox control flange axle, bottom jointed rod in flange, connects spray head 6 at its top by connecting shaft cover, wherein, by the rotating of the control flange axle of epicyclic gearbox, headstock can be realized and drive drilling rod to realize positive and negative stirring.
Two groups of power set: the support of headstock is connected with well subrack, well subrack drives support to vertically move, thus makes headstock drive drilling rod to move longitudinally, wherein, driving force is provided by hydraulic motor, and hydraulic motor drives epicyclic gearbox, and epicyclic gearbox is for driving flange shaft;
When support being arranged two groups of power set, when namely comprising two CD-ROM drive motors and two epicyclic gearboxes, two upper and lower settings of epicyclic gearbox, and hollow channel 1 is located along the same line, the first rotating shaft 4 in the hollow channel 1 of upper planetary gear case 2 is successively through upper planetary gear case 2 and lower planetary gear case 3, and lower planetary gear case 3 is passed in the second rotating shaft 5 in lower planetary gear case 3, wherein, first rotating shaft 4 is located in the second rotating shaft 5, and the first rotating shaft 4 and the second rotating shaft 5 are flange shaft.
The top of the second rotating shaft 5, locate between upper planetary gear case 2 and lower planetary gear case 3, second rotating shaft 5 and the first rotating shaft 4 are connected to form a seal channel by connecting shaft cover, the bottom of the first rotating shaft 4 connects interior drilling rod, the bottom of the second rotating shaft 5 connects outer drilling rod by connecting shaft cover, spray head 6 is located at the top of the first bull stick, spray head 6 is connected with the first rotating shaft 4 by connecting shaft cover, spray head 6 is to grout injection in sealing passage, to grout in hole that drilling rod gets out, mix mutually with the weak soil in hole, there is a series of physical-chemical reaction, thus formation pile foundation.
The rotation direction of the first rotating shaft 4 and the second rotating shaft 5 is contrary, namely the interior drilling rod connected is contrary with the direction of rotation of outer drilling rod, thus makes headstock operationally, when interior drilling rod and the work of outer drilling rod, positive and negative slurry and the weak soil of mixing cement respectively, makes both mixing more fully, fast.
Wherein, spray head 6 is arranged on the top of the first rotating shaft 4, is convenient to dismounting namely away from one end of drilling rod, herein, and there will not be the phenomenon of wearing and tearing, and for whole headstock, maintenance maintenance is convenient, and long service life, cost-saving.
The positive and negative headstock of a kind of cement-soil mixing pile machine that the present embodiment provides, original headstock is structurally optimized, by original three layer construction, the i.e. structure of power set, spray head 6 and gear-box, be optimized for double-layer structure: power set and epicyclic gearbox, wherein, spray head 6 can be arranged in the hollow channel 1 of epicyclic gearbox, stir demand according to different piling, spray head 6 can be arranged on the position of differing heights.
Its advantage is:
1, the structure of this headstock is simple, whole machine weight is reduced, conveniently moving, easy to use;
2, change the position of spray head 6, promote utilization rate, Loss reducing; Spray head 6 easy disassembly, maintenance maintenance is convenient, meanwhile, avoids the damage thinking the spray head 6 caused that rubs, cost-saving;
3, in the middle part of epicyclic gearbox, rotating shaft is isolated by hollow channel 1 and planetary gear, in filling process, can have been linked up and complete stirring more smoothly by rotating shaft, not only increase operation rate, and avoid slurries and enter in epicyclic gearbox, reduce repair rate, time saving and energy saving.
A kind of cement-soil mixing pile machine, comprise support, support is connected with well subrack, well subrack is connected with the positive and negative headstock of above-mentioned cement-soil mixing pile machine, and the positive and negative headstock of cement-soil mixing pile machine is connected with drilling rod.
The headstock of this mixing pile machine, the headstock of relatively traditional piling mixer, changes original structure greatly, becomes the structure being combined an epicyclic gearbox by 1 hydraulic motor, i.e. power set, preferably, arranges 2 groups of combinations, upper and lower arrangement.Two groups of epicyclic gearboxes are labeled as upper planetary gear case 2 and lower planetary gear case 3; Another spray head 6 can be arranged on integrally-built upper end or in hollow channel 1; The advantage of the cement-soil mixing pile machine that the present embodiment provides is:
1,2 hydraulic motors add 2 epicyclic gearboxes, make the weight saving of overall piling mixer, originally the headstock of a piling mixer just needs to fill with a support, after present weight saving, 2 groups of power set just can be filled in a support, disposable 2 groups of power set of can slinging, had both improve the utilization rate of product, had also saved the time.Meanwhile, within a support, arrange one or two power set can select according to the actual requirements, and namely headstock is split or combining form;
2, get through respectively in the middle of upper and lower 2 epicyclic gearboxes, form a hollow channel 1, in hollow channel 1, needs when can stir according to concrete piling, install spray head 6 at differing heights, also in uppermost passway, spray head 6 can be installed, facilitate install the early stage of spray head 6 like this, it also avoid the damage of the spray head 6 caused that rubs, also for the replacing in later stage provides conveniently, save time, cost-saving.
In the hollow channel 1 of 3, upper planetary gear case 2, insert a flange shaft rotated forward from top to bottom; And in the hollow channel 1 of lower planetary gear case 3, insert a flange shaft reversely rotated from bottom to top; Two flange shaft are engaged mutually in the middle part of two epicyclic gearboxes, are engaged by screw; Make whole flange shaft be combined into upper and lower interconnective entirety, facilitate spray head 6 water filling, because upper and lower the combining closely of flange shaft, thus form a whole axle track that can not leak.Facilitate the running of mixing pile machine.Owing to using the flange shaft of positive and negative rotation, so when running, two-way stirring cement, it is more convenient to operate.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. the positive and negative headstock of cement-soil mixing pile machine, is characterized in that, comprises at least one power set be mounted in well subrack;
Described power set comprise drive unit, and described drive unit is connected with epicyclic gearbox, and described epicyclic gearbox is located at the below of described drive unit, and the middle part of described epicyclic gearbox is provided with hollow channel, are provided with the rotating shaft of hollow in described hollow channel;
One end away from described drive unit of described rotating shaft is used for jointed rod, and described rotating shaft is connected with spray head.
2. the positive and negative headstock of cement-soil mixing pile machine according to claim 1, is characterized in that, described drive unit is hydraulic motor.
3. the positive and negative headstock of cement-soil mixing pile machine according to claim 1, it is characterized in that, comprise power set described in two groups, the upper and lower arranged opposite of power set described in two groups, described in two groups, the described epicyclic gearbox of power set is respectively upper planetary gear case and lower planetary gear case;
Be provided with the first rotating shaft in the hollow channel of described upper planetary gear case, in the hollow channel of described lower planetary gear case, be provided with the second rotating shaft;
Described first rotating shaft is successively through described upper planetary gear case and described lower planetary gear case, described second rotating shaft is through described lower planetary gear case, described first rotating shaft is located in described second rotating shaft, and described first rotating shaft is connected by connecting shaft cover with described second rotating shaft;
The bottom of described first rotating shaft is for connecting interior drilling rod, and the bottom of described second rotating shaft is for connecting outer drilling rod;
Described spray head is located at described first rotating shaft one end away from described lower planetary gear case.
4. the positive and negative headstock of cement-soil mixing pile machine according to claim 3, is characterized in that, the direction of rotation of described first rotating shaft and described second rotating shaft is contrary.
5. the positive and negative headstock of cement-soil mixing pile machine according to claim 3, is characterized in that, described first rotating shaft and described second rotating shaft are flange shaft.
6. the positive and negative headstock of cement-soil mixing pile machine according to claim 1, is characterized in that, described spray head is located at described rotating shaft one end away from described drilling rod.
7. the positive and negative headstock of cement-soil mixing pile machine according to claim 3, is characterized in that, described spray head is connected with described first rotating shaft by connecting shaft cover.
8. the positive and negative headstock of cement-soil mixing pile machine according to claim 1, is characterized in that, described power set and described epicyclic gearbox are located on support, and described support is connected with well subrack.
9. the positive and negative headstock of cement-soil mixing pile machine according to claim 1, is characterized in that, described epicyclic gearbox is enclosed with overcoat.
10. a mixing pile machine, it is characterized in that, comprise support, described support is connected with well subrack, described well subrack is connected with the positive and negative headstock of cement-soil mixing pile machine described in any one of claim 1-9, the positive and negative headstock of described cement-soil mixing pile machine is connected with drilling rod.
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| CN201410623998.0A CN104372792B (en) | 2014-11-05 | 2014-11-05 | A kind of positive and negative headstock of cement-soil mixing pile machine and mixing pile machine |
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| CN108894215B (en) * | 2018-08-06 | 2020-05-01 | 董红根 | Bidirectional stirring mechanism and stirrer for cement soil construction |
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| CN201339443Y (en) * | 2009-01-23 | 2009-11-04 | 中铁科工集团有限公司 | Bidirectional cement mortar blowing drill bit with the positive and negative rotation mixing function |
| CN201459712U (en) * | 2009-05-14 | 2010-05-12 | 徐宏跃 | Single-power bidirectional soil-cement mixing pile mixing device |
| CN201495539U (en) * | 2009-08-27 | 2010-06-02 | 蔡雅彬 | Deep cement soil stirring machine |
| JP5552687B2 (en) * | 2011-02-21 | 2014-07-16 | Ｊｆｅスチール株式会社 | Ground excavation machinery |
| CN204185850U (en) * | 2014-11-05 | 2015-03-04 | 曹政 | A kind of positive and negative headstock of cement-soil mixing pile machine and mixing pile machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09296442A (en) * | 1996-04-30 | 1997-11-18 | Jiotetsuku Kk | Cast-in-place piling device |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201339443Y (en) * | 2009-01-23 | 2009-11-04 | 中铁科工集团有限公司 | Bidirectional cement mortar blowing drill bit with the positive and negative rotation mixing function |
| CN201459712U (en) * | 2009-05-14 | 2010-05-12 | 徐宏跃 | Single-power bidirectional soil-cement mixing pile mixing device |
| CN201495539U (en) * | 2009-08-27 | 2010-06-02 | 蔡雅彬 | Deep cement soil stirring machine |
| JP5552687B2 (en) * | 2011-02-21 | 2014-07-16 | Ｊｆｅスチール株式会社 | Ground excavation machinery |
| CN204185850U (en) * | 2014-11-05 | 2015-03-04 | 曹政 | A kind of positive and negative headstock of cement-soil mixing pile machine and mixing pile machine |
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