Major diameter drill while drilling and casing
Technical field
The present invention relates to a kind of rig, particularly relate to a kind of major diameter drill while drilling and casing that is applicable to the construction of boring slip casting preformed pile (CRG stake) stake type.
Background technology
It is several that the stake type construction that building foundation is commonly used mainly contains the paddle type mill tube-sinking cast-in-situ pile at present, paddle type mill is pressed into preformed pile, static pressed pile and bored pile etc., and its construction equipment is respectively diesel hammer, vibrating hammer, hydraulic static pile pressing machine and rotary drilling rig etc.Wherein diesel hammer and vibrating hammer all have been limited in many countries and regions to use or eliminate gradually because noise pollution is serious in work progress; Though hydraulic static pile pressing machine has the characteristics of environmental protections such as low noise, friction, but its soil compaction effect is obvious, and can not go into middle weathering, gentle breeze scar, make that the supporting capacity of high-strength prestress pile tube is not fully played, thereby limited the range of application of this equipment greatly; And rotary drilling rig is because the construction cost height, execution conditions are strict and adopt mud off to cause serious mud contamination environment etc. former thereby be difficult to large-area popularization equally in work progress.By Guangzhou Institute Of Building Science invention and in boring slip casting preformed pile (CRG stake) construction of gain the national patent gift in 2004 by in the auger stem rotary drilling, being pressed into prefabricated tubular pile synchronously, combine the advantage of bored pile and pile for prestressed pipe, realize civilized construction, adapted to the target that the geology ability is strong and bearing capacity of single pile is high, be a kind of novel environment friendly stake that significant advantage is arranged, also be not applicable to the complete set of machines of this worker's method at present at home and abroad.
Summary of the invention
Technical problem to be solved by this invention provide a kind of full hydraulic drive, compact conformation, mobility good, have pile tube hydraulic pressure drilling follow pipe and drive function, have pile tube location and follow-up speed controlling function, be applicable to the major diameter drill while drilling and casing of boring slip casting preformed pile (CRG stake) construction.
In order to solve the problems of the technologies described above, major diameter drill while drilling and casing provided by the invention, on the crawler travel chassis, be provided with platform, on described platform, be provided with drivers' cab, dynamical system, hydraulic system and control system, pile frame and support bar thereof are installed on described platform, on described platform, be provided with the perpendicular frame elevator corresponding with described pile frame, on described pile frame, slide and be provided with unit head and auger stem assembly thereof, on described pile frame, slide and be provided with storage soil case and the drilling follow tube drive device corresponding with described auger stem assembly, on described platform, be provided with and drive described unit head, the auger stem assembly, store up the major-minor elevator assembly that native case and drilling follow tube drive device slide up and down on described pile frame, the front on described crawler travel chassis is equipped with and the corresponding control pile device of described auger stem assembly.
On described pile frame, slide and be provided with hanging basket, be provided with the hanging basket elevator that the described hanging basket of driving slides up and down on the described platform on described pile frame.
Adopt the major diameter drill while drilling and casing of technique scheme, pile frame is made and can be born bigger transverse load by whole pile frame good stability by two diagonal braces and the supporting of platform front rack of band oil cylinder.Unit head adopts full hydraulic drive, disposes single motor, single reductor, and powerful can provide the moment of torsion that creeps into of 80KNm, thus in can going into, the gentle breeze scar.Store up native case by two oil cylinders be connected unit head below, its inside is equipped with the clear earthenware of mechanical type.In work progress, by clear earthenware native slag is cleared from the auger stem assembly, and be stored in the native case, when Chu Tuxiang fills, opening the native case side door of storage again can directly transfer to native slag on the slag waggon, thus the contamination phenomenon that the native slag that occurs when having avoided the construction of common spiral drilling machine huddles everywhere, environment-friendly and green, and saved native slag has been transferred to this operation on the slag waggon from ground, improved efficiency of construction.The drilling follow tube drive device is connected by spring below the native case, and spring plays damping and buffering effect.Under different operating modes, can reach the target of step-less adjustment excited frequency and amplitude by the flow of governor motor, substitute traditional gear FMAM structure, make frame for movement simplify greatly, reduce the wearing and tearing between each driving member, prolonged the application life of equipment.Drilling follow tube drive device lower end is equipped with two hydraulic jacks, is used for the prefabricated tubular pile that is fixedly clamped, and enables to follow auger stem under the effect of exciting force and creeps into together, thereby realize the function of complete machine drilling follow pipe.
Control pile device is controlled the motion of three pile holders simultaneously by an oil cylinder, good synchronism when having guaranteed three pile holders work; Control pile device is equipped with three leveling cyclinders simultaneously, can be good at the levelness of leveling control pile device, thereby can be good at realizing the function of complete machine pile tube location.Control pile device also is equipped with two and pulls out oil cylinder, the prefabricated pipe that is pressed into can be extracted the aperture, thereby also can be applied to bored pile construction worker method.
In sum, the present invention be a kind of full hydraulic drive, compact conformation, mobility good, can satisfy the multiple aperture boring requirement, have pile tube hydraulic pressure drilling follow pipe and drive function, have pile tube location and follow-up speed controlling function, be applicable to the major diameter drill while drilling and casing of boring slip casting preformed pile (CRG stake) construction.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
The invention will be further described for following the drawings and specific embodiments.
Referring to Fig. 1, on crawler travel chassis 7, be provided with platform 5, on platform 5, be provided with drivers' cab 10, bicycle shed 9, dynamical system 4, hydraulic system 17 and control system 18, at platform 5 front ends pile frame 13 is installed, support bar 3 is connected between platform 5 and the pile frame 13, on platform 5, be provided with the perpendicular frame elevator 2 corresponding with pile frame 13, on pile frame 13, slide and be provided with unit head 20 and auger stem assembly 15 thereof, on pile frame 13, slide and be provided with storage soil case 19 and the drilling follow tube drive device 16 corresponding with auger stem assembly 15, on platform 5, be provided with and drive unit head 20, auger stem assembly 15, store up the major-minor elevator assembly 8 that native case 19 and drilling follow tube drive device 16 slide up and down on pile frame 13, the front on crawler travel chassis 7 is equipped with the control pile device 12 corresponding with auger stem assembly 15, on pile frame 13, slide and be provided with hanging basket 11, be provided with the hanging basket elevator 6 that driving hanging basket 11 slides up and down on the platform 5 on pile frame 13.
Referring to Fig. 1, pile frame 13 becomes the bikini supporting by two diagonal braces of band oil cylinder with the platform front rack, make and can bear bigger transverse load by whole pile frame 13 good stabilities.Pile frame 13 can by the diagonal brace oil cylinder about ± 3 ° and 5 ° the scope of leaning forward in adjustment, thereby in work progress, have good vertical adjustment performance.And pile frame 13 is equipped with three groups of guide rails, can hang respectively as driving unit head 20, the native case 19 of storage and 11 3 kinds of construction equipments of hanging basket or servicing unit.
Unit head 20 adopts full hydraulic drive, disposes single motor, single reductor, and powerful can provide the moment of torsion that creeps into of 80KNm, thus in can going into, the gentle breeze scar, belong to initiative at home.
Store up native case 19 by two oil cylinders be connected unit head 20 below, its inside is equipped with the clear earthenware of mechanical type.In work progress, by clear earthenware the auger stem of native slag from auger stem assembly 15 cleared, and be stored at 19 li in native case, when the native case 19 of storage is filled, opening native case 19 side doors of storage again can directly transfer to native slag on the slag waggon, thus the contamination phenomenon that the native slag that occurs when having avoided the construction of common spiral drilling machine huddles everywhere, environment-friendly and green, and saved native slag has been transferred to this operation on the slag waggon from ground, improved efficiency of construction.
Drilling follow tube drive device 16 is connected below the native case 19 of storage by spring, and spring plays damping and buffering effect.Two hydraulic motors of drilling follow tube drive device 16 configurations, thereby the exciting force that motor drives axle by shaft coupling and is installed in the eccentric block rotation generation vertical direction on the axle.Under different operating modes, can reach the target of step-less adjustment excited frequency and amplitude by the flow of governor motor, substitute traditional gear FMAM structure, make frame for movement simplify greatly, reduce the wearing and tearing between each driving member, prolonged the application life of equipment.Drilling follow tube drive device 16 lower ends are equipped with two hydraulic jacks, and the prefabricated tubular pile 14 that is used for being fixedly clamped enables to follow auger stem under the effect of exciting force and creeps into together, thereby realize the function of complete machine drilling follow pipe.
Control pile device 12 is controlled the motion of three pile holders simultaneously by an oil cylinder, good synchronism when having guaranteed three pile holders work; Control pile device 12 is equipped with three leveling cyclinders simultaneously, can be good at the levelness of leveling control pile device 12, thereby can be good at realizing the function of complete machine pile tube location.Control pile device 12 also is equipped with two and pulls out oil cylinder, the prefabricated tubular pile 14 that is pressed into can be extracted the aperture, thereby also can be applied to bored pile construction worker method.