CN108505932A - A kind of power head - Google Patents

Abstract

A kind of power head, including two groups of power sources, gear-box, rack, close switch, hydraumatic swivel joint, slip casting swivel joint, abutted flange, rotary disk and built-in oil pipe combination, motor are installed in planetary reducer upper end；Two groups of power sources are symmetrically arranged on gear-box；Drilling rod axis passes perpendicularly through gear-box, and gear wheel thereon is engaged with the pinion gear on planetary reducer output shaft；Slip casting swivel joint is installed in lead on gear-box and cover, and hydraumatic swivel joint is connect by rotary disk with slip casting swivel joint；Built-in oil pipe combines the inner cavity for being placed in output shaft, and the upper end is docked after passing through slip casting swivel joint with the rotation axis of hydraumatic swivel joint, and lower end is installed in by inscribed headstock in the scalariform counterbore of the female connector socket in lower end of abutted flange；Output panel is screwed by round nut in hollow output shaft lower end.The present invention has the characteristics that drilling ability is big, drilling rod speed monitors in real time, filling adaptor, hydraulic joint are reasonable for structure and slip casting and fluid pressure line sealed reliable.

Description

A kind of power head

Technical field

The present invention relates to a kind of power head, more particularly to a kind of power for planting the hydraulic pressure reaming drilling machine of pile work method construction Head.

Background technology

With growing continuously and fast for domestic economy, it is pushed further into high-speed railway, highway, large bridge, city The construction of the mega projects such as building, intercity subway and large-scale synthesis building, the surrounding enviroment that can encounter foundation construction are more and more multiple It is miscellaneous, new requirement is proposed to piling Technology, two kinds of pile foundation types of bored concrete pile and prefabricated pile general at present are by construction work The limitation of skill, it is insufficient to there are some applications, vertical anti-if prefabricated pile is there are stake side development of resistance in soft soil foundation is incomplete Pile strength cannot give full play under pressure load, and the flat weight bearing power of water resistant is insufficient, and deformation performance is not high enough, and fragility destroys, and applies Soil compaction is serious etc. in work, and bored concrete pile exists and necking down easily occurs, and stake bottom is without heavy quarrel, and mud emission and the pile crown of rejecting can be dirty in construction Contaminate environment etc..Need the means using technologically advanced, economical rationality, reliable in quality and low-carbon environment-friendly.In the prior art, have The quiet brill of one kind taking root in pile construction technology, is the Novel pile foundation construction method of flush type precast pile technique, and integrated drilling, deep layer are stirred Mix, expand head, prefabricated various pile foundation technologies, the pile-type various combination such as PHDC, PHC and PRHC can be drilled, reaming, slip casting And implantation, with without friction, low noise, pile quality is good, pile bearing capacity is high, mud emission is few, mechanization of building operation degree is high, matter The advantages that measuring the technical characterstics such as reliable and construction efficiency height, effectively compensates for the deficiency of current weak soil Pile Foundation, and meet country The requirement of low-carbon environment-friendly can replace current most of cast-in-situ bored pile, this construction technology to be gradually promoted and use. In construction, quiet brill takes root in stake by programs such as drilling, reaming, stirring conjunction slip castings to complete, thus, it is desirable to plant pile work method Drilling machine except with general drilling machine drilling, in addition to agitating function, also need have reaming, stirring and slip casting work(in pre-manufactured hole Can, and corresponding conveying fluid pressure line and grouting pipeline are needed to configure on the power head of driving drilling rod rotation, and by must Hydraulic pipeline or fluid pressure line is wanted to provide hydraulic power supply to extension oil cylinder, to realize the extension drilling and receipts of reaming bit Contracting carries brill, realizes slip casting and whitewashing of the drilling tool in whipping process.Under normal conditions, grouting pipeline and fluid pressure line are provided in On drilling rod, and setting and the channel attached slip casting swivel joint of slip casting on power head, open closure for reaming oil cylinder The hydraumatic swivel joint of built-in fluid pressure line connection, how to install and arrange between slip casting swivel joint and hydraumatic swivel joint, And their effectively connecting between grouting pipeline, built-in fluid pressure line are the necessary guarantees of reaming drilling machine normal work, it is existing Have in technology that there are no more effective mode and means, therefore, the further expansion for influencing to plant stake drilling machine is applied.

Invention content

It is a primary object of the present invention to overcome it is existing plant pile work method drilling machine power head there are the shortcomings that, one kind is provided Drilling rod output torque is big, drilling is strong and powerful, drilling rod rotary speed can monitor in real time, turns round filling adaptor, revolution hydraulic joint The high power head of reasonable for structure and built-in fluid pressure line, grouting pipe sealing performance is convenient for the assembly and disassembly of built-in oil pipe, It is convenient to be stored to turning round filling adaptor, turning round the maintaining of hydraulic joint and clean, drilling machine operating efficiency is effectively improved, into one Step improves the applicability of reaming drilling machine.

To achieve the above objectives, solution of the present invention is：

A kind of power head, including：Two groups of arranged symmetrically, power sources with frequency conversion two-speed motor and planetary reducer, gear Case, the rack with hoisting mechanism and back guide plate, positioned at connecing for frequency conversion two-speed motor and planetary reducer installation site Nearly switch, hydraumatic swivel joint, slip casting swivel joint, positioning plate, rotary disk, abutted flange and built-in oil pipe combination, wherein：

The planetary reducer of every group of power source includes connecting flange and the output shaft with pinion gear；

Gear-box includes drilling rod axle assembly, babinet, case lid and porous plug, wherein drilling rod axle assembly includes that upper end is heavy with end face Hollow output shaft, gear wheel, radial bearing, the second outside framework oil seal, Xia Tonggai, Shang Tonggai, output panel and the round nut in hole；

Abutted flange has the female connector socket in lower end, includes the second scalariform step, third scalariform step, position being located in the socket Lateral half slot of second of inner wall and the locking screw hole with the second lateral half slot perforation in the middle part of it；

Slip casting swivel joint include set on connector, connector housing, housing bearing, the upper sleeve cover with upper shield inside groove, housing end cap, Store oil circle, deep groove ball bearing and spacer ring, wherein set includes putting on axle journal, intermediate journal, the slip casting positioned at its peripheral surface on connector Screw hole, set lower axle journal, the first counterbore of upper set, the second counterbore of upper set, upper set third counterbore and the fixing threaded hole positioned at its outer wall； Connector housing includes housing counterbore, the multiple tracks housing annular groove positioned at its inner wall and housing groove at its upper end and is located at it The housing flange of lower end；Store oil circle includes multiple oil leak holes, the oil groove being connected to oil leak hole, encloses inner surface positioned at its underpart Circle inside groove and the circle outer groove for being located therein circle outer surface；

Built-in oil pipe combination include hydraulic pressure core pipe, two with end annular groove transit joint body transitional connection pipe, two groups put down The nipple assembly and inscribed headstock of row setting；Wherein,

Hydraulic pressure installation of core pipe is in slip casting swivel joint and to sequentially pass through the upper set third covered on the connector of slip casting swivel joint heavy The first counterbore of hole, the second counterbore of upper set and upper set, include positioned at top, with two top connection oil ducts being axially arranged in parallel and The externally threaded upper end connector in end, positioned at middle part, in the first hydraulic tube and the second hydraulic tube being axially arranged in parallel Portion's core pipe and the lower end core pipe connector for connecting counterbore and lower contact flange positioned at lower part, with two further include having centre Through-hole, two symmetrical third injected holes and multiple brackets with bracket annular groove and hollow output shaft in gear-box is set In the counterbore of end face and with rack ventilating hole, two symmetrical 5th injected holes and holder with holder annular groove；Lower contact flange Equipped with two symmetrical 4th injected holes and lower flange annular groove；

Inscribed headstock include pedestal with two symmetrical second sockets and the second injected hole and be connected to below pedestal and its The upper flange with the second opposite notch, the flange also have the inner seat flange groove and flange end being located on flange excircle Inner seat flange pin hole on face and inner seat seat flange screw；

Nipple assembly include the first nipple, guide sleeve, guide rod, the second nipple, butterfly spring, quick female connector, Circlip, the first O-ring, reinforced seal, the second O-ring and third O-ring；Wherein,

Second nipple is equipped with bulge loop on the top of its outer wall, and when being installed in inscribed headstock, bulge loop is shelved on inscribed headstock Pedestal socket top on, and its outer wall is divided into the 4th axle journal and following interior two external screw thread above by boundary of bulge loop；Second Nipple further include as two upper end counterbores in two annular grooves in the 4th axle journal corresponding position endoporus and with inscribed headstock Interior two groove and interior two annular groove that the opposite outer wall of pedestal is equipped with；

Guide sleeve is provided, in sequence from bottom to top, with set internal thread, set intermediate throughholes and set lower end counterbore, guide sleeve in its endoporus and also wraps Include the set internal channel and set inner groove positioned at set lower end counterbore inner wall；

Guide rod packet is the scalariform bar of headed, has axle journal, bar screw thread and rod through-hole；

A upper end counterbore, an interior internal thread, interior intermediate step hole and interior lower end counterbore are equipped in first nipple packet endoporus, It further include the interior annular groove positioned at interior upper end counterbore inner wall；

Hydraumatic swivel joint includes joint housing, rotation axis, revolution epicranial plate and positioning plate, wherein joint housing includes being located at It oil inlet screw hole, oil return screw hole on its outer wall and is communicated with oil inlet screw hole and oil return screw hole on its inner walls into oil ring Slot and oil return annular groove further include the enclosure slot positioned at its outer wall；Rotation axis includes two shafts being arranged in an axially parallel mode in the inner Straight oil duct, the horizontal oil duct of shaft and the shaft flange with center step positioned at its underpart；

Positioning plate has upper end straight hook and the mounting hole positioned at lower part；

Rotary disk has the small screw hole of center screw and uniformly distributed outside；

It is characterized in that：

The rack is frame framework body, and its underpart is installed in the upper surface of the case lid of gear-box；The hoisting mechanism is installed in machine The installation site placed in the middle of the upper mounting plate of frame；The guide plate, which is installed in the back side of rack and is placed in rack by its notch, is matched To drive rack to move down and uplink when planting the construction of stake drilling machine on the pile frame guide rail set；The close switch is installed on planet and subtracts The side of fast machine is connected to the control panel of drilling machine control cabinl pulpit by signal wire；

Two groups of power sources are symmetrically arranged on gear-box, they are located at the side of drilling rod axle assembly；Each row Star speed reducer is connected through each installation site on the outer end face for the case lid that flange is installed in gear-box；Each row The output shaft of star speed reducer enters the cabinets cavity of gear-box, and pinion gear thereon is nibbled with the gear wheel on drilling rod axle assembly respectively It closing, the other end installation bearing of each output shaft and the first outside framework oil seal are placed in each mounting hole of the babinet, Then, it is also packaged in each mounting hole using a tegillum；The top of each planetary reducer is fixedly mounted with frequency conversion double speed Motor；

The drilling rod axle assembly of the gear-box is arranged in one side, drilling rod in a manner of the case lid and babinet that pass perpendicularly through gear-box Be fixedly mounted with gear wheel at the middle part spline of the hollow output shaft of axle assembly, the radial bearing and the second outside framework oil seal be set in The corresponding position of hollow output shaft is placed in each mounting hole of the babinet of gear-box, and the Xia Tonggai and upper logical lid cover respectively Behind lower end and upper end loaded on hollow output shaft in each mounting hole for the babinet for being fixedly mounted with gear-box；The output panel is installed in At the lowermost lower spline of hollow output shaft, the round nut is used in combination to be fastened；

The abutted flange is fixedly mounted with after being set in the lower end step of hollow output shaft by bolt and output panel；

The slip casting swivel joint is installed in the Shang Tonggai of the drilling rod axle assembly of gear-box by the housing flange of its connector housing End face, set is set in by axle journal under its set in the endoporus of connector housing on the connector and part is located at connector housing top, Lubricating grease, the housing groove point are injected by oil nozzle respectively in multiple tracks housing annular groove opposite with axle journal under the set, described Other mounting O-shaped rings, on the housing counterbore top of the connector housing, the hole wall opposite with the intermediate journal covered on connector is equipped with axis Hold slot and installation rolling bearing and spacer ring in it；The housing end cap is installed in the upper surface of connector housing；

The second counterbore of upper set for being covered on connector hole wall opposite with the upper end connector outer wall of hydraulic pressure core pipe is equipped with ring Slot simultaneously installs store oil circle wherein, is connected with multiple oil leak holes, oil groove and is formed between set and upper end connector on connector Lubricating oil film, the circle inside groove is interior to install oil sealing, and deep groove ball bearing is installed in the circle outer groove；

Grouting Pipe of the slip casting screw hole connection from external filling system on outer wall is covered on the connector of the slip casting swivel joint Pipeline connector, after the upper set third counterbore injection covered on connector has a certain proportion of cement grout, which can be suitable Sequence passes through the 5th injected hole on the holder in the hydraulic pressure core pipe in the counterbore of hollow output shaft end face, the third on multiple brackets Hollow output shaft endoporus, the external hollow drilling tool endoporus of the 4th injected hole, gear-box on injected hole, lower contact flange enter pick Into the soil layer of stirring, to meet operational procedure requirement during the drilling for planting stake drilling machine；

For the hydraulic pressure core pipe of the built-in oil pipe combination in the arrangement across each counterbore, the rotary disk passes through its center screw It is screwed on the end external screw thread of the upper end connector of hydraulic pressure core pipe, upper end connector passes through the upper surface of rotary disk to be placed on institute In the center step for stating the shaft flange of the rotation axis of hydraumatic swivel joint, O is equipped in the heavy hole in two ends of upper end connector Type circle；

The first hydraulic tube and the second hydraulic tube of the middle part core pipe inner cavity of the hydraulic pressure core pipe two with upper end connector respectively The connection perforation of top connection oil duct, the middle part core pipe is respectively by the holder on its outer wall and in holder annular groove after mounting O-shaped rings And be held in the end face counterbore of hollow output shaft, in addition, the middle part core pipe is also by the outer wall below holder Multiple brackets are simultaneously placed in after mounting O-shaped rings or are supported in the hole of hollow output shaft in bracket annular groove；The hydraulic pressure core pipe Lower end core pipe connector be pierced by outside the hole of hollow output shaft and output panel, and pacified in lower flange annular groove by its lower contact flange Dress O-ring is placed in the mounting hole of abutted flange；

Their upper end is respectively placed in hydraulic pressure by two transitional connection pipes respectively in its end annular groove after mounting O-shaped rings Their lower end, is respectively placed in two guide sleeves of nipple assembly by two connection counterbores of the lower end core pipe connector of core pipe；

The shaft flange of the hydraumatic swivel joint is linked together by screw and rotary disk and makes hydraulic pressure core pipe and rotation axis It is opposite to connect；Two top connection oil ducts of the upper end connector of the hydraulic pressure core pipe are straight with two shafts of rotation axis respectively Oil duct alignment perforation；The joint housing is set in rotation axis, and the revolution epicranial plate is installed in joint housing upper surface；Institute State oil inlet screw hole, oil return screw hole respectively with from hydraulic system oil inlet pipe and oil return pipe connect, wherein the oil inlet of joint housing The straight oil duct of annular groove, the horizontal oil duct of shaft of rotation axis, shaft forms oil inlet pipe, the oil return annular groove of joint housing, turn of rotation axis The horizontal oil duct of axis, shaft internal oil channel form oil return line；

The positioning plate is placed in by the upper end straight hook in the enclosure slot of the outer wall of the joint housing of hydraumatic swivel joint, and is passed through It is screwed the fixing threaded hole that bolt covers on the connector of slip casting swivel joint in the mounting hole of its underpart and outer with being covered on connector Wall is relatively fixed on outer wall, to which hydraumatic swivel joint and slip casting swivel joint link into an integrated entity；

When coming from the male fittings body of external hollow drill pipe in the female connector socket of insertion abutted flange, male connector axle journal It is ordinatedly placed in the third scalariform step of female connector socket, the first lateral half slot positioned at male fittings body outer wall connects with positioned at female Second lateral half slot formation of head socket inner wall is opposite with locking bolt to form lock pin holes to merging, is inserted by being inserted into connector It locks after pin, finally male fittings body is completely locked in female connector socket after being screwed into locking bolt in locking screw hole, it is ensured that Upper hollow drilling rod is connected firmly in abutted flange；

The lower end of built-in oil pipe combination is fixed on pair in such a way that the lateral surface that headstock is inscribed at it installs lower end baffle ring Second scalariform the bottom of the steps of the female connector socket of acting flange, inner seat flange groove installs lower end sealing ring, in its flange end Positioning finger setting and screw fastening is respectively adopted in inner seat flange pin hole and inner seat flange screw on face；

The nipple assembly of the built-in oil pipe combination is inserted into the nipple respectively by the 4th axle journal of the second nipple The mode of installation circlip is fixed after two symmetrical second sockets and inside in two grooves in seat, interior two rings First O-ring is installed in slot；

The guide rod is passed through by the bar external screw thread of its lower end in the set lower end counterbore and the first nipple endoporus of guide sleeve Interior internal screw thread Luo Installed and its bar axle journal is placed in the set lower end counterbore of guide sleeve, and the set internal channel of the set lower end counterbore It is then respectively equipped with reinforced seal and third O-ring with set inner groove；

The butterfly spring is constituted with pairing after 2 one group of overlapping, multigroup overlappings, they are placed in logical among the set of the guide sleeve Between upper surface and the lower face of the second nipple in hole and positioned at guide rod；

The guide sleeve is tightened against in second nipple lower end by the set internal thread of the upper end on two external screw threads；

An interior annular groove for the interior upper end counterbore of first nipple installs the second O-ring；Interior the one of first nipple Quick female connector is set in intermediate step hole.

The present invention can be, the longitudinal center line of the straight oil duct of two in the rotation axis of the hydraumatic swivel joint shaft with And the parallelism tolerance of the longitudinal center line of two top connection oil ducts of the upper end connector of hydraulic pressure core pipe requires to be 0.08- 0.10mm。

The present invention is also possible that the longitudinal center line of two groups of nipple assemblies of the built-in oil pipe combination relative to inscribed The parallelism tolerance of the flange excircle of headstock requires to be 0.08-0.10mm.

The present invention is also possible that the butterfly spring in two groups of nipple assemblies of the built-in oil pipe combination is assembled to guiding After the set intermediate throughholes of set, initial pressing force answers >=2.0kN, and pressing force answers >=4.0kN after recompressing 2.10mm.

Description of the drawings

Fig. 1 is the structural schematic diagram of power head of the present invention；

Fig. 2 is the right view of Fig. 1；

Fig. 3 is that the structural schematic diagram after rack is removed in Fig. 1；

Fig. 4 is the left view of Fig. 3；

Fig. 5 is the vertical view of Fig. 3；

Fig. 6 is power head middle gear case internal gear transmission schematic diagram of the present invention；

Fig. 7 is sectional view along A-A in Fig. 3；

Fig. 8 is the structural representation for installing connection relation in Fig. 7 between built-in oil pipe combination and gear-box, abutted flange, output panel Figure part；

Fig. 9 is the structural schematic diagram part of the nipple assembly that built-in oil pipe combines in power head of the present invention and inscribed headstock；

Figure 10 is the upward view of Fig. 9；

Figure 11 be in Fig. 9 P-P to sectional view；

The structural schematic diagram that hydraumatic swivel joint, slip casting swivel joint, built-in oil pipe combination connect in Figure 12 power heads of the present invention Part；

Figure 13 be in Figure 12 D-D to sectional view；

Figure 14 be in Figure 12 F-F to sectional view；

Figure 15 be in Figure 14 S-S to sectional view；

Figure 16 be in Fig. 7 J-J to sectional view；

Figure 17 be in Fig. 8 C-C to sectional view；

Figure 18 is the portions A enlarged drawing in Figure 14；

Figure 19 is the portions B enlarged drawing in Figure 14；

Figure 20 is the portions C enlarged drawing in Figure 14；

Figure 21 be in Figure 13 G-G to sectional view；

Figure 22 is B-B direction sectional view in Figure 14；

Figure 23 is the structural schematic diagram for the store oil circle that filling adaptor is turned round in the present invention.

Specific implementation mode

Power head of the present invention is further described below in conjunction with embodiment described in attached drawing.

A kind of power head, including：Two groups of arranged symmetrically, power with frequency conversion two-speed motor 11 and planetary reducer 12 Source 1, gear-box 8, the rack 3 with hoisting mechanism 31 and back guide plate 32 are located at frequency conversion two-speed motor and planetary reduction gear Machine installation site close to switch 4, hydraumatic swivel joint 5, slip casting swivel joint 6, positioning plate 53, rotary disk 58, abutted flange 7 And built-in oil pipe combination 2；Wherein：

The planetary reducer 12 of every group of power source 1 includes connecting flange 121 and the output shaft 122 with pinion gear 1221；Tooth Roller box 8 includes drilling rod axle assembly 81, babinet 82, case lid 83 and porous plug 84, wherein drilling rod axle assembly 81, which includes upper end, has end Hollow output shaft 811, gear wheel 812, radial bearing 814, the second outside framework oil seal 815, lower logical lid 816, the Shang Tonggai of face counterbore 817, output panel 818 and round nut 819.

Abutted flange 7 has the female connector socket 72 in lower end, includes the second scalariform step in the socket or jack 722, third scalariform step 723, be located therein the second lateral half slot 724 of inner wall and penetrated through with the second lateral half slot Locking screw hole 725.

Slip casting swivel joint 6 includes 61, connector housing 62, housing bearing 64 being covered on connector, with the upper of upper shield inside groove 631 Upper shield 63, store oil circle 66, deep groove ball bearing 65 and spacer ring 68, wherein it includes putting on axle journal 611, intermediate journal that 61 are covered on connector 613, positioned at the slip casting screw hole 610 of its peripheral surface, the lower axle journal 612 of set, the first counterbore 614 of upper set, the second counterbore 616 of upper set, on Cover third counterbore 615 and the fixing threaded hole 618 positioned at its outer wall；Connector housing 62 includes housing counterbore at its upper end 621, positioned at the multiple tracks housing annular groove 622 and housing groove 623 of its inner wall and positioned at the housing flange 624 of its lower end；Storage Scraper ring 66 include multiple oil leak holes 661, be connected to oil leak hole oil groove 662, positioned at its underpart circle inner surface circle inside groove 663 and It is located therein the circle outer groove 664 of circle outer surface.

Built-in oil pipe combination 2 includes the transition connection of 21, two transit joint bodies 261 with end annular groove of hydraulic pressure core pipe 26, two groups of pipe nipple assembly and inscribed headstock 250 disposed in parallel；Wherein, hydraulic pressure core pipe 21 is mounted on slip casting swivel joint 6 Upper set third counterbore 615, the second counterbore 616 of upper set and the upper set of set 61 on connector that is interior and sequentially passing through slip casting swivel joint 6 First counterbore 614 includes 2131,2131 ', two positions of the straight oil duct of top connection being axially arranged in parallel positioned at top, with two Upper end connector in the end heavy hole 2130,2130 ' and end side external screw thread 2132 of 2131,2131 ' port of top connection oil duct 213, the middle part core pipe 214 positioned at middle part, with the first hydraulic tube 2141 and the second hydraulic tube 2142 that are axially arranged in parallel with And the lower end core pipe connector 212 positioned at lower part, with two connections counterbores 2121,2121 ' and lower contact flange 2122, further include With 2151, two symmetrical third injected holes 2153,2153 ' of intermediate throughholes and multiple brackets with bracket annular groove 2150 215 and it is arranged in the 811 end face counterbore of hollow output shaft of gear-box 8 and with rack ventilating hole 2161, two symmetrical the Five injected holes 2163,2163 ' and the holder 216 with holder annular groove 2160；Wherein, lower contact flange 2122 is equipped with two symmetrically The 4th injected hole 21223,21223 ' and lower flange annular groove 2120；Inscribed headstock 250 includes that there are two symmetrical second to be inserted Mouthfuls 2501,2501 ' and second injected hole 2503,2503 ' pedestal and be connected to below pedestal and thereon with opposite second The flange of notch 2502,2502 ', the flange also have the inner seat flange groove 2506 and end face of flange being located on flange excircle On inner seat flange pin hole 2504 and inner seat seat flange screw 2505.

Nipple assembly includes the first nipple 251, guide sleeve 253, guide rod 252, the second nipple 255, butterfly Spring 254, quick female connector 256, circlip 44, the first O-ring 55, reinforced seal 66, the second O-ring 77 and third are O-shaped Circle 88；Wherein, the second nipple 255 is equipped with bulge loop on the top of its outer wall, when being installed in inscribed headstock 250, by convex Ring is shelved on the pedestal socket top of inscribed headstock, and its outer wall is divided into 2552 He of the 4th axle journal above by boundary of bulge loop Following interior two external screw thread 2553；Second nipple 255 further includes as in 2552 corresponding position endoporus of the 4th axle journal two Upper end counterbore 2555 and the outer wall opposite with the pedestal of inscribed headstock 250 be equipped in two grooves 25522 and interior two annular groove 25521；Guide sleeve 253 is provided, in sequence from bottom to top, with set internal thread 2533, set intermediate throughholes 2532 and set lower end in its endoporus and sinks Hole 2531, guide sleeve 253 further include the set internal channel 25311 and set inner groove 25312 for being located at set 2531 inner wall of lower end counterbore；It leads To the scalariform bar that bar 252 is headed, there is bar axle journal 2522, bar screw thread 2521 and rod through-hole 2523；First nipple 251 wraps A upper end counterbore 2514, an interior internal thread 2513, interior intermediate step hole 2512 and interior lower end counterbore 2511 in including further include An annular groove 25141 in 2514 inner wall of interior upper end counterbore.

Hydraumatic swivel joint 5 is mounted in slip casting swivel joint 6, including joint housing 51, rotation axis 52, revolution epicranial plate 54 and positioning plate 53, wherein joint housing 51 include the oil inlet screw hole 511 being located on its outer wall, oil return screw hole 512 and with into Whelk hole and oil return screw hole 512 communicate on its inner walls into oil ring groove 5111 and oil return annular groove 5121, further include being located at The enclosure slot 515 of its outer wall；Rotation axis 52 includes the straight oil duct 521,521 ' of two shafts being arranged in an axially parallel mode in the inner, shaft Horizontal oil duct 523,523 ' and the shaft flange 522 positioned at its underpart with center step 5220 positioned at its underpart.

Positioning plate 53 has upper end straight hook 531 and the mounting hole 532 positioned at lower part.

Rotary disk 58 has the small screw hole 582 of center screw 581 and uniformly distributed outside.

The rack 3 is frame framework body, and its underpart is installed in the upper surface of the case lid 82 of gear-box 8；The hoisting mechanism 31 are installed in the installation site placed in the middle of the upper mounting plate 33 of rack 3；The guide plate 32 is installed in the back side of rack 3 and by its slot Rack 3 is placed on configured pile frame guide rail to drive rack 3 to move down and uplink when planting the construction of stake drilling machine by mouth；It is described to connect Nearly switch 4 is installed on the side of planetary reducer 12, and the control panel of drilling machine control cabinl pulpit is connected to by signal wire；Work as reaming Drilling machine in drilling, stirring and reaming procedure, close to switch 4 can to the velocity of rotation of motor 11, hollow output shaft 811 into Row measures and control, and is transmitted in time on control panel by harness and carries out instant playback, is conveniently operated personnel monitoring's drilling The working condition of machine effectively controls drilling, stirring and ream operation program, improves the construction quality for planting stake operation.

Two groups of power sources 1 are symmetrically arranged on gear-box 8, they are located at the side of drilling rod axle assembly 21；Institute State each peace that each planetary reducer 12 is connected through on the outer end face for the case lid 82 that flange 121 is installed in gear-box 8 Holding position；The output shaft 122 of each planetary reducer 12 enters the cabinets cavity of gear-box 8, pinion gear 1221 thereon It is engaged respectively with the gear wheel 812 on drilling rod axle assembly 81, the other end of each output shaft 122 installation bearing 123 and the One outside framework oil seal 124 is placed in each mounting hole of the babinet 82, then, is also packaged in using a tegillum 125 each In mounting hole；The top of each planetary reducer 12 is fixedly mounted with frequency conversion two-speed motor 11；Starting drilling machine power head Stage can reduce the impact of load power grid, be conducive to gentle start and the operation is stable of drilling machine.In addition, on hollow output shaft Gear wheel 812 is engaged simultaneously by the pinion gear 1221 on the output shaft 122 of two star speed reducers 12, has drilling rod output torque Greatly, the features such as drilling is strong and powerful increases substantially drilling, reaming and the stirring efficiency of drilling machine, improves being applicable in for drilling machine Property.

The drilling rod axle assembly 81 of the gear-box 8 is arranged in a manner of the case lid 82 and babinet 83 that pass perpendicularly through gear-box One side is fixedly mounted with gear wheel 812,814 He of the radial bearing at the middle part spline of the hollow output shaft 811 of drilling rod axle assembly 81 Second outside framework oil seal 815 is set with is placed on each peace of the babinet 83 of gear-box in the corresponding position of hollow output shaft 811 It fills in hole, the lower logical lid 816 and upper logical lid 817 are set with and are being fixedly mounted with tooth behind the lower end and upper end of hollow output shaft 811 In each mounting hole of the babinet 83 of roller box；The output panel 818 is installed in the lowermost lower spline of hollow output shaft 811 Place, is used in combination the round nut 819 to be fastened.

The abutted flange 7 is solid by bolt and output panel 818 after the lower end step for being set in hollow output shaft 811 Dress is together.

The drilling rod axis that the slip casting swivel joint 6 is installed in gear-box 8 by the housing flange 624 of its connector housing 62 is total 61 are covered at 81 upper 817 end face of logical lid, on the connector to be set in the endoporus of connector housing 62 simultaneously by axle journal 612 under its set Part is located at 62 top of connector housing, passes through respectively in opposite with axle journal 612 under the set, the described multiple tracks housing annular groove 622 Oil nozzle injects lubricating grease, and the housing groove 623 distinguishes mounting O-shaped rings, 621 top of housing counterbore of the connector housing 62 with The opposite hole wall of the intermediate journal 613 of set 61 is equipped with bearing groove and installation rolling bearing 64 and spacer ring 68 in it on connector；Institute State the upper surface that housing end cap 67 is installed in connector housing 62.

The 213 outer wall phase of upper end connector of the second counterbore of upper set 616 and the hydraulic pressure core pipe 21 of set 61 on the connector To hole wall be equipped with annular groove and wherein installation store oil circle 66, with multiple oil leak holes 661, the connection of oil groove 662 and on connector Lubricating oil film is formed between set 61 and upper end connector 213, and oil sealing is installed in the circle inside groove 663, is pacified in the circle outer groove 664 Fill deep groove ball bearing 65；

The connection of slip casting screw hole 610 on 61 outer walls is covered on the connector of the slip casting swivel joint 6 from external filling system Grouting pipeline connector, after upper set third counterbore 615 injection of set 61 has a certain proportion of cement grout on connector, the water Mud liquid energy sequence passes through the 5th slip casting on the holder 216 in the hydraulic pressure core pipe 21 in 811 end face counterbore of hollow output shaft The 4th slip casting on third injected hole 2153,2153 ', lower contact flange 2122 on hole 2163,2163 ', multiple brackets 215 Hole 21223,21223 ', 811 endoporus of hollow output shaft of gear-box 8, the external hollow drilling tool endoporus of inflow enter driving stirring Soil layer, to meet operational procedure requirement during the drilling for planting stake drilling machine.

In the arrangement across each counterbore, the rotary disk 58 passes through the hydraulic pressure core pipe 21 of the built-in oil pipe combination 2 Its center screw 581 is screwed on the end external screw thread 2132 of the upper end connector 213 of hydraulic pressure core pipe 21, upper end connector 213 The center step of the shaft flange 522 of the rotation axis 52 of the hydraumatic swivel joint 5 is placed on across the upper surface of rotary disk 58 In 5220, the heavy hole 2130,2130 ' in two ends of upper end connector 213 is interior to be equipped with O-ring.

The first hydraulic tube 2141 in 214 inner cavity of middle part core pipe of the hydraulic pressure core pipe 21 and the second hydraulic tube 2142 difference The straight connection of oil duct 2131,2131 ' of two top connections with upper end connector 213 penetrates through, and the middle part core pipe 214 is respectively by outside it Holder 216 on wall simultaneously after mounting O-shaped rings and is held on the end face counterbore of hollow output shaft 811 in holder annular groove 2160 In；In addition, the middle part core pipe 214 is also by multiple brackets 215 on the outer wall of 216 lower section of holder and in bracket annular groove It is placed in or is supported in after mounting O-shaped rings in the hole of hollow output shaft 811 in 2150；The lower end core pipe of the hydraulic pressure core pipe 21 connects First 212 are pierced by outside the hole of hollow output shaft 811 and output panel 818, and by its lower contact flange 2122 in its lower flange annular groove Mounting O-shaped rings are placed in the mounting hole of abutted flange 7 in 2120.

Two transitional connection pipes 26 set their upper end respectively in its end annular groove after mounting O-shaped rings respectively In two connection counterbores 2121,2121 ' of the lower end core pipe connector 212 of hydraulic pressure core pipe 21, their lower end is respectively placed in interior Two guide sleeves 253 of connector assembly.

The shaft flange 522 of the hydraumatic swivel joint 5 is linked together by screw and rotary disk 58 and makes hydraulic pressure core Pipe 21 and the opposite contact connectio of rotation axis 52；Two straight oil ducts of top connection of the upper end connector 213 of the hydraulic pressure core pipe 21 2131,2131 ' penetrate through with the straight alignment of oil duct 521,521 ' of two shafts of rotation axis 52 respectively；The joint housing 51 is set in In rotation axis 52, the revolution epicranial plate 54 is installed in 51 upper surface of joint housing；The oil inlet screw hole 511, oil return screw hole 512 Respectively with from hydraulic system oil inlet pipe and oil return pipe connect, wherein joint housing 51 into oil ring groove 5111, rotation axis 52 The horizontal oil duct 523 of shaft, the straight oil duct 521 of shaft form oil inlet pipe, the oil return annular groove 5121 of joint housing 51, rotation axis 52 The horizontal oil duct 523 ' of shaft, shaft internal oil channel 521 ' form oil return line.

The positioning plate 53 is placed in the shell of the outer wall of the joint housing 51 of hydraumatic swivel joint 5 by the upper end straight hook 531 In body slot 515,61 fixation is covered by being screwed bolt in the mounting hole 532 of its underpart on the connector of slip casting swivel joint 6 Screw hole 618 and be relatively fixed with the outer wall of set 61 on connector, so that hydraumatic swivel joint 5 and slip casting swivel joint 6 be connected into One.

When the male fittings body for coming from external hollow drill pipe is inserted into the female connector socket 72 of abutted flange 7, hero connects It is placed in head journal engagement the third scalariform step 723 of female connector socket 72, is located at the first lateral semicircle of male fittings body outer wall Slot with positioned at female 72 inner wall of connector socket second it is lateral half slot 724 is opposite with locking bolt to form lock pin holes to merging, By be inserted into connector bolt after lock, finally after being screwed into locking bolt in locking screw hole by male fittings body in female connector socket 12 It is interior fully locked, it is ensured that upper hollow drilling rod is connected firmly in abutted flange 7.

Lower end baffle ring 2501 is installed by the way that the lateral surface of headstock 250 is inscribed at it in the lower end of the built-in oil pipe combination 2 Mode is fixed on 722 bottom of the second scalariform step of the female connector socket 72 of abutted flange 7, and inner seat flange groove 2506 is installed Positioning is respectively adopted in lower end sealing ring 259, inner seat flange pin hole 2504 and inner seat flange screw 2505 on its end face of flange Finger setting and screw fastening.

The nipple assembly of the built-in oil pipe combination 2 is inserted by the 4th axle journal 2552 of the second nipple 255 respectively Entering two symmetrical second sockets 2501,2501 ' in the inscribed headstock 250, installation is elastic in two grooves 25522 afterwards and inside The mode of baffle ring 44 is fixed, and the first O-ring 55 is installed in interior two annular grooves 25521；The guide rod 252 is by under it The bar external screw thread 2521 at end passes through spiral shell in interior one covered in lower end counterbore 2531 and 251 endoporus of the first nipple of guide sleeve 253 2513 spiral shell of line fills and its bar axle journal 2522 is placed in the set lower end counterbore 2531 of guide sleeve 253, and set lower end counterbore 2531 Set internal channel 25311 and set inner groove 25312 be then respectively equipped with reinforced seal 66 and third O-ring 88；The butterfly spring 254 are constituted with pairing after 2 one group of overlapping, multigroup overlappings, they are placed in the set intermediate throughholes 2532 of the guide sleeve 253, And between the upper surface and the lower face of the second nipple 255 of guide rod 252；The guide sleeve 253 passes through the upper end Set internal thread 2533 is tightened against on interior two external screw thread 2553 of 255 lower end of the second nipple；First nipple 251 An interior annular groove 25141 for interior upper end counterbore 2514 installs the second O-ring 77；An interior way station for first nipple 251 Quick female connector 256 is set in rank hole 2512.

The longitudinal center line of the straight oil duct of two shafts in the rotation axis 52 of the hydraumatic swivel joint 5 521,521 ' and The parallelism tolerance of the longitudinal center line of two top connection oil ducts 2131,2131 ' of the upper end connector 213 of hydraulic pressure core pipe 21 is wanted It asks as 0.08-0.10mm.In such manner, it is possible to the straight oil duct 521,521 ' of two shafts being effectively ensured in rotation axis 52 and hydraulic pressure core pipe Sealing performance when two top connection oil ducts 2131,2131 ' of 21 upper end connector 213 dock is convenient for hydraulic system hydraulic pressure Oil pressure reaches the range of requirement when being conveyed in plant stake drilling machine hollow output shaft, hollow drilling tool, so that it is guaranteed that reaming oil cylinder expands Exhibition and shrinkage operation carry out reaming program according to design requirement to prebored hole.

Flange excircle of the longitudinal center line of two groups of nipple assemblies of built-in oil pipe combination 2 relative to inscribed headstock 250 Parallelism tolerance require be 0.08-0.10mm.Butterfly spring in two groups of nipple assemblies of the built-in oil pipe combination 2 After 254 are assembled to the set intermediate throughholes 2532 of guide sleeve 253, initial pressing force answers >=2.0kN, is compressed after recompressing 2.10mm Power answers >=4.0kN.In this way, being effectively ensured when the output end adjunction of power head is from external hollow drill pipe, in the outside The quick pin end of two fluid pressure lines is inserted into the quick mother for the built-in oil pipe combination 2 being located in 7 hole of abutted flange in empty drilling rod In connector 256 it is quick, be properly inserted in place with sufficiently reliable docking, and divide from quick female connector 256 in quick pin end From when can reach timely disengaging, in order to which drilling rod is dismantled, and effectively improve the sealing performance of fluid pressure line.

When the connection of 7 lower end of the abutted flange is from external hollow drill pipe, the male fittings body of the outer drill rod is inserted While entering in the female connector socket 72 of the abutted flange 7, it is located at the fast of two groups of coupling assemblies in outer drill rod endoporus Fast pin end is inserted into the quick female connector 256 of the built-in oil pipe combination 2 in the abutted flange 7 of top, and from the external of outside Head is then right after the first nipple 251 in two groups of nipple assemblies described in upward pushing tow and the guide rod 252 that spiral shell load connects therewith Butterfly spring 254 applies and keeps an active force, as a compensation stroke, is conducive to the connection of built-in oil pipe；Pass through The upper end third counterbore 615 of set 61, the hydraulic pressure in 811 end face counterbore of hollow output shaft on the connector of slip casting swivel joint 6 What is be arranged in the 5th injected hole 2163,2163 ', 811 endoporus of hollow output shaft and its hole on holder 216 in core pipe 21 is multiple 21223, the 21223 ' shape of the 4th injected hole on third injected hole 2153,2153 ' and lower contact flange 2122 on bracket 215 At the cement grout transfer pipeline of connection, grouting with plunger construction can be started after the completion of ream operation, will be had a certain proportion of Cement grout injects in the hole that preboring is completed, and extracts whole drilling rods, and prefabricated pile is pressed into prebored hole, wait for cement grout with it is prefabricated Stake completion of cure is completed to plant stake operation after combining.

It is a primary object of the present invention to overcome existing plant pile work method drill power head there are the shortcomings that, a kind of drilling is provided Machine output torque is big, drilling is strong and powerful, drilling rod operating stabilization, drilling rod velocity of rotation real-time inspection and control, revolution filling adaptor With the power head that revolution hydraulic joint is reasonable for structure, built-in fluid pressure line, grouting pipe sealing performance are high, convenient for built-in oil pipe Assembly and disassembly, it is convenient to turning round filling adaptor, the maintaining for turning round hydraulic joint and cleaning storage, effectively improve drilling machine work Industry efficiency further increases the applicability of reaming drilling machine.

Without departing from present general inventive concept, various transformation and improvement can also be done to the present invention, but only Will it is identical as composition of the present invention or equivalent if, also belong to protection scope of the present invention.

Claims (4)

1. a kind of power head, including：Two groups are symmetrical arranged, have frequency conversion two-speed motor（11）And planetary reducer（12）It is dynamic Power source（1）, gear-box（8）, there is hoisting mechanism（31）With back guide plate（32）Rack（3）, it is electronic to be located at frequency conversion double speed Machine and planetary reducer installation site close to switch（4）, hydraumatic swivel joint（5）, slip casting swivel joint（6）, positioning plate （53）, rotary disk（58）, abutted flange（7）And built-in oil pipe combination（2）, wherein：

Every group of power source（1）Planetary reducer（12）It include connecting flange（121）With with pinion gear（1221）Output Axis（122）；

Gear-box（8）Including drilling rod axle assembly（81）, babinet（82）, case lid（83）And porous plug（84）, wherein drilling rod axle assembly （81）There is the hollow output shaft of end face counterbore including upper end（811）, gear wheel（812）, radial bearing（814）, the second skeleton Oil sealing（815）, Xia Tonggai（816）, Shang Tonggai（817）, output panel（818）And round nut（819）；

Abutted flange（7）With the female connector socket in lower end（72）, include be located at the socket in the second scalariform step（722）, Three-stage shape step（723）, be located therein the second lateral half slot of inner wall（724）And penetrated through with the second lateral half slot Lock screw hole（725）；

Slip casting swivel joint（6）Including being covered on connector（61）, connector housing（62）, housing bearing（64）, have upper shield inside groove （631）Upper sleeve cover（63）, housing end cap（67）, store oil circle（66）, deep groove ball bearing（65）And spacer ring（68）, wherein connector Upper set（61）Including putting on axle journal（611）, intermediate journal（613）, positioned at the slip casting screw hole of its peripheral surface（610）, the lower axle journal of set （612）, the first counterbore of upper set（614）, the second counterbore of upper set（616）, upper set third counterbore（615）And consolidating positioned at its outer wall Determine screw hole（618）；Connector housing（62）Including housing counterbore at its upper end（621）, positioned at the multiple tracks outer sleeve of its inner wall Slot（622）With housing groove（623）And the housing flange positioned at its lower end（624）；Store oil circle（66）Including multiple drainings Hole（661）, the oil groove that is connected to oil leak hole（662）, positioned at its underpart enclose inner surface circle inside groove（663）It is enclosed with being located therein The circle outer groove of outer surface（664）；

Built-in oil pipe combines（2）Including hydraulic pressure core pipe（21）, two transit joint bodies with end annular groove（261）Transition connect It takes over（26）, two groups of nipple assembly disposed in parallel and inscribed headstocks（250）；Wherein,

Hydraulic pressure core pipe（21）Mounted on slip casting swivel joint（6）It is interior and sequentially pass through slip casting swivel joint（6）Connector on cover （61）Upper set third counterbore（615）, the second counterbore of upper set（616）With the first counterbore of upper set（614）, including it is located at top, tool There are two top connection oil ducts being axially arranged in parallel（2131,2131 '）, two be located at top connection oil duct（2131,2131 '）Port The heavy hole in end（2130,2130’）With end side external screw thread（2132）Upper end connector（213）, be located at middle part, have it is axial First hydraulic tube of parallel arrangement（2141）With the second hydraulic tube（2142）Middle part core pipe（214）And positioned at lower part, have Two connection counterbores（2121,2121 '）With lower contact flange（2122）Lower end core pipe connector（212）, further include that there is centre Through-hole（2151）, two symmetrical third injected holes（2153,2153 '）With with bracket annular groove（2150）Multiple brackets （215）And it is arranged in gear-box（8）Hollow output shaft（811）In the counterbore of end face and there is rack ventilating hole（2161）, two Symmetrical 5th injected hole（2163,2163 '）With with holder annular groove（2160）Holder（216）；Wherein, lower contact flange （2122）Equipped with two symmetrical 4th injected holes（21223,21223 '）With lower flange annular groove（2120）；

Inscribed headstock（250）Including having two symmetrical second sockets（2501,2501 '）With the second injected hole（2503, 2503’）Pedestal and be connected to below pedestal and there is the second opposite notch thereon（2502,2502 '）Flange, the method It is blue that also there is the inner seat flange groove being located on flange excircle（2506）And the inner seat flange pin hole on end face of flange（2504） With inner seat seat flange screw（2505）；

Nipple assembly includes the first nipple（251）, guide sleeve（253）, guide rod（252）, the second nipple（255）、 Butterfly spring（254）, quick female connector（256）, circlip（44）, the first O-ring（55）, reinforced seal（66）, it is second O-shaped Circle（77）With third O-ring（88）；Wherein,

Second nipple（255）It is equipped with bulge loop on the top of its outer wall, is installed on inscribed headstock（250）When middle, pass through bulge loop It is shelved on the pedestal socket top of inscribed headstock, and its outer wall is divided into the 4th axle journal above by boundary of bulge loop（2552）With Following interior two external screw thread（2553）；Second nipple（255）Further include as the 4th axle journal（2552）In the endoporus of corresponding position Interior two upper end counterbore（2555）And with inscribed headstock（250）Interior two groove that is equipped with of the opposite outer wall of pedestal （25522）With interior two annular groove（25521）；

Guide sleeve（253）It is provided, in sequence from bottom to top, with set internal thread in its endoporus（2533）, set intermediate throughholes（2532）Under set Hold counterbore（2531）, guide sleeve（253）Further include being located at set lower end counterbore（2531）The set internal channel of inner wall（25311）In set Annular groove（25312）；

Guide rod（252）For the scalariform bar of headed, there is bar axle journal（2522）, bar screw thread（2521）And rod through-hole（2523）；

First nipple（251）Interior upper end counterbore is equipped in endoporus（2514）, an interior internal thread（2513）, an interior intermediate step Hole（2512）With interior lower end counterbore（2511）, further include being located at interior upper end counterbore（2514）An interior annular groove for inner wall （25141）；

Hydraumatic swivel joint（5）Including joint housing（51）, rotation axis（52）With revolution epicranial plate（54）, wherein joint housing （51）It include the oil inlet screw hole on its outer wall（511）, oil return screw hole（512）And it is communicated with oil inlet screw hole and oil return screw hole It is on its inner walls into oil ring groove（5111）With oil return annular groove（5121）, further include the enclosure slot positioned at its outer wall（515）； Rotation axis（52）The straight oil duct of shaft being arranged in an axially parallel mode in the inner including two（521,521 '）, the horizontal oil duct of shaft（523, 523’）There is center step with positioned at its underpart（5220）Shaft flange（522）；

Positioning plate（53）With upper end straight hook（531）With the mounting hole positioned at lower part（532）；

Rotary disk（58）With center screw（581）With the small screw hole in uniformly distributed outside（582）；

It is characterized in that：

The rack（3）For frame framework body, its underpart is installed in gear-box（8）Case lid（82）Upper surface；The elevator Structure（31）It is installed in rack（3）Upper mounting plate（33）Installation site placed in the middle；The guide plate（32）It is installed in rack（3）The back of the body Face and by its notch by rack（3）It is placed on configured pile frame guide rail to drive rack when planting the construction of stake drilling machine（3） It moves down and uplink；The close switch（4）It is installed on planetary reducer（12）Side, by signal wire be connected to drilling machine behaviour The control panel of oblongum；

Two groups of power sources（1）In gear-box（8）On be symmetrically arranged, they are located at drilling rod axle assembly（21）Side； Each planetary reducer（12）It is connected through flange（121 are installed in gear-box（8）Case lid（82）Outer end face on Each installation site；Each planetary reducer（12）Output shaft（122）Into gear-box（8）Cabinets cavity, On pinion gear（1221）Respectively with drilling rod axle assembly（81）On gear wheel（812）Engagement, each output shaft（122）'s The other end installs bearing（123）With the first outside framework oil seal（124）It is placed on the babinet（82）Each mounting hole in, then, Also utilize a tegillum（125）It is packaged in each mounting hole；Each planetary reducer（12）Top be fixedly mounted with frequency conversion Two-speed motor（11）；

The gear-box（8）Drilling rod axle assembly（81）To pass perpendicularly through the case lid of gear-box（82）And babinet（83）Mode cloth It sets in one side, drilling rod axle assembly（81）Hollow output shaft（811）Middle part spline at be fixedly mounted with gear wheel（812）, it is described to Mandrel is held（814）With the second outside framework oil seal（815）It is set in hollow output shaft（811）Corresponding position be placed on gear-box Babinet（83）Each mounting hole in, the lower logical lid（816）With upper logical lid（817）It is set in hollow output shaft （811）Lower end and upper end after in the babinet for being fixedly mounted with gear-box（83）Each mounting hole in；The output panel（818）It is installed in Hollow output shaft（811）The lowermost lower spline at, the round nut is used in combination（819）It is fastened；

The abutted flange（7）It is set in hollow output shaft（811）Lower end step after pass through bolt and output panel（818）Gu Dress；

The slip casting swivel joint（6）Pass through its connector housing（62）Housing flange（624）It is installed in gear-box（8）Drilling rod Axle assembly（81）Shang Tonggai（817）End face；It is covered on the connector（61）Pass through axle journal under its set（612）It is set in connector housing （62）Endoporus in and part be located at connector housing（62）Axle journal under top, with the set（612）Opposite, the described multiple tracks housing Annular groove（622）Lubricating grease is inside injected by oil nozzle respectively, in the housing groove（623）Mounting O-shaped rings respectively, in the connector Housing（62）Housing counterbore（621）Top is covered on connector（61）Intermediate journal（613）Opposite hole wall is equipped with bearing groove And rolling bearing is installed in it（64）And spacer ring（68）；The housing end cap（67）It is installed in connector housing（62）Upper end Face；

It is covered on the connector（61）The second counterbore of upper set（616）With the hydraulic pressure core pipe（21）Upper end connector（213）Outside The opposite hole wall of wall is equipped with annular groove and installs store oil circle wherein（66）, with multiple oil leak holes（661）, oil groove（662）It connects And it is covered on connector（61）With upper end connector（213）Between form lubricating oil film, the circle inside groove（663）Interior installation oil sealing, The circle outer groove（664）Interior installation deep groove ball bearing（65）；

The slip casting swivel joint（6）Connector on cover（61）Slip casting screw hole on outer wall（610）It connects from external slip casting The grouting pipeline connector of system is being covered on connector（61）Upper set third counterbore（615）Middle injection has a certain proportion of water After slurry liquid, which can be sequentially by hollow output shaft（811）Hydraulic pressure core pipe in the counterbore of end face（21）On branch Frame（216）On the 5th injected hole（2163,2163 '）, multiple brackets（215）On third injected hole（2153,2153 '）, under Joint flange（2122）On the 4th injected hole（21223,21223 '）, gear-box（8）Hollow output shaft（811）Endoporus flows into External hollow drilling tool endoporus enters the soil layer of driving stirring, to meet operational procedure requirement during the drilling for planting stake drilling machine；

The built-in oil pipe combination（2）Hydraulic pressure core pipe（21）In the arrangement across each counterbore, the rotary disk（58）It is logical Cross its center screw（581）It is screwed in hydraulic pressure core pipe（21）Upper end connector（213）End external screw thread（2132）On, upper end Connector（213）Across rotary disk（58）Upper surface be placed on the hydraumatic swivel joint（5）Rotation axis（52）Shaft Flange（522）Center step（5220）In, upper end connector（213）The heavy hole in two ends（2130,2130’）It is interior to be equipped with O Type circle；

The hydraulic pressure core pipe（21）Middle part core pipe（214）First hydraulic tube of inner cavity（2141）With the second hydraulic tube（2142）Point Not with upper end connector（213）Two top connection oil ducts（2131,2131 '）Connection perforation, the middle part core pipe（214）Lead to respectively Cross the holder on its outer wall（216）And in holder annular groove（2160）After interior mounting O-shaped rings and it is held on hollow output shaft（811） End face counterbore in, in addition, the middle part core pipe（214）Also by being located at holder（216）Multiple brackets on the outer wall of lower section （215）And in bracket annular groove（2150）Hollow output shaft is placed in or is supported in after interior mounting O-shaped rings（811）Hole in；It is described Hydraulic pressure core pipe（21）Lower end core pipe connector（212）It is pierced by hollow output shaft（811）And output panel（818）Hole outside, and pass through Its lower contact flange（2122）In lower flange annular groove（2120）Interior mounting O-shaped rings are placed on abutted flange（7）Mounting hole in；

Two transitional connection pipes（26）Their upper end is respectively placed in after mounting O-shaped rings in its end annular groove respectively Hydraulic pressure core pipe（21）Lower end core pipe connector（212）Two connection counterbores（2121,2121 '）, their lower end is set respectively In two guide sleeves of nipple assembly（253）；

The hydraumatic swivel joint（5）Shaft flange（522）Pass through screw and rotary disk（58）It links together and makes hydraulic pressure Core pipe（21）And rotation axis（52）It is opposite to connect；The hydraulic pressure core pipe（21）Upper end connector（213）Two on connect Hair oil road（2131,2131’）Respectively with rotation axis（52）Two straight oil ducts of shaft（521,521 '）Alignment perforation；The connector Shell（51）It is set in rotation axis（52）On, the revolution epicranial plate（54）It is installed in joint housing（51）Upper surface；It is described into Whelk hole（511）, oil return screw hole（512）Respectively with from hydraulic system oil inlet pipe and oil return pipe connect, wherein joint housing （51）Into oil ring groove（5111）, rotation axis（52）The horizontal oil duct of shaft（523）, the straight oil duct of shaft（521）Oil inlet pipe is formed, Joint housing（51）Oil return annular groove（5121）, rotation axis（52）The horizontal oil duct of shaft（523’）, shaft internal oil channel（521’）Shape At oil return line；

The positioning plate（53）Pass through the upper end straight hook（531）It is placed in hydraumatic swivel joint（5）Joint housing（51）Outer wall Enclosure slot（515）It is interior, and pass through the mounting hole in its underpart（532）In be screwed bolt in slip casting swivel joint（6）Connector Upper set（61）Fixing threaded hole（618）And it is covered on connector（61）Outer wall be relatively fixed, to by hydraumatic swivel joint（5）With Slip casting swivel joint（6）It links into an integrated entity；

When the male fittings body for coming from external hollow drill pipe is being inserted into abutted flange（7）Female connector socket（72）When, it is male Connector axle journal is ordinatedly placed in female connector socket（72）Third scalariform step（723）, it is located at the first cross of male fittings body outer wall To half slot and it is located at female connector socket（72）The lateral half slot of the second of inner wall（724）It is formed opposite with locking bolt to merging Lock pin holes are formed, by being locked after being inserted into connector bolt, finally by male fittings body after being screwed into locking bolt in locking screw hole It is completely locked at female connector socket（12）It is interior, it is ensured that upper hollow drilling rod is connected firmly to abutted flange（7）It is interior；

The built-in oil pipe combination（2）Lower end by the way that headstock is inscribed at it（250）Lateral surface install lower end baffle ring（2501） Mode be fixed on abutted flange（7）Female connector socket（72）The second scalariform step（722）Bottom, inner seat flange groove （2506）Lower end sealing ring is installed（259）, the inner seat flange pin hole on its end face of flange（2504）With inner seat flange screw （2505）Positioning finger setting and screw fastening is respectively adopted；

The built-in oil pipe combination（2）Nipple assembly pass through the second nipple（255）The 4th axle journal（2552）Respectively It is inserted into the inscribed headstock（250）In two symmetrical second sockets（2501,2501 '）Afterwards and inside two groove（25522）It is interior Circlip is installed（44）Mode be fixed, it is described in two annular grooves（25521）The first O-ring of interior installation（55）；

The guide rod（252）Pass through the bar external screw thread of its lower end（2521）Across guide sleeve（253）Set lower end counterbore （2531）With the first nipple（251）An interior screw thread in endoporus（2513）Spiral shell fills and its bar axle journal（2522）It is placed in guide sleeve （253）Set lower end counterbore（2531）It is interior, and set lower end counterbore（2531）Set internal channel（25311）With set inner groove （25312）Then it is respectively equipped with reinforced seal（66）With third O-ring（88）；

The butterfly spring（254）It is constituted with pairing after 2 one group of overlapping, multigroup overlappings, they are placed in the guide sleeve（253） Set intermediate throughholes（2532）It is interior and be located at guide rod（252）Upper surface and the second nipple（255）Lower face between；

The guide sleeve（253）Pass through the set internal thread of the upper end（2533）It is tightened against second nipple（255）Lower end Interior two external screw thread（2553）On；

First nipple（251）Interior upper end counterbore（2514）An interior annular groove（25141）Second O-ring is installed （77）；First nipple（251）Interior intermediate step hole（2512）The middle quick female connector of setting（256）.

2. power head according to claim 1, it is characterised in that the hydraumatic swivel joint（5）Rotation axis（52）Interior Two straight oil ducts of shaft（521,521 '）Longitudinal center line and hydraulic pressure core pipe（21）Upper end connector（213）Two on Connector oil duct（2131,2131 '）Longitudinal center line parallelism tolerance require be 0.08-0.10mm.

3. power head according to claim 1, it is characterised in that the built-in oil pipe combination（2）Two groups of nipple assemblies Longitudinal center line relative to inscribed headstock（250）Flange excircle parallelism tolerance require be 0.08-0.10mm.

4. power head according to claim 1, it is characterised in that the built-in oil pipe combination（2）Two groups of nipple assemblies In butterfly spring（254）It is assembled to guide sleeve（253）Set intermediate throughholes（2532）Afterwards, initial pressing force answers >=2.0kN, Pressing force answers >=4.0kN after recompression 2.10mm.