CN206256439U - A kind of power drive head - Google Patents
A kind of power drive head Download PDFInfo
- Publication number
- CN206256439U CN206256439U CN201620720754.9U CN201620720754U CN206256439U CN 206256439 U CN206256439 U CN 206256439U CN 201620720754 U CN201620720754 U CN 201620720754U CN 206256439 U CN206256439 U CN 206256439U
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- gear
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- axle assembly
- transition
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Abstract
A kind of power drive head, including lifting tackle group, motor, planetary reducer, the gear-box of axle assembly containing drilling rod, transition axle assembly and core pipe, frame, guide plate, inclination sensor positioned at frame side；Motor is installed in planetary reducer upper end；Four groups of drilling rod axle assemblies pass perpendicularly through gear-box, and it is square be arranged symmetrically, and the direction of rotation of two groups of diagonally arranged drilling rod axle assemblies is identical；The gear wheel for being engaged with little gear on transition gear and the output shaft of planetary reducer on transition axle assembly respectively is equipped with every group of drilling rod axle assembly, top is provided with swivel coupling；Core pipe send slurry to manage with middle part, passes perpendicularly through gear-box, and its top is provided with whitewashing joint；The utility model power drive head has output torque balance, moment of torsion is compensated automatically, construction precision is high, reliable and stable, energy-conserving and environment-protective, ensure construction speed and effectively the power drive head that increases the service life.
Description
Technical field
The utility model belongs to a kind of power drive head, and more particularly to a kind of power for deep-cement stir process drives
Dynamic head.
Background technology
Deep-cement stirring engineering method is using cement mortar as curing agent, by special deep-layer stirring machinery and foundation soil original
Position action of forced stirring mixing carries out a kind of new technique of foundation stabilization.Deep-cement stirring engineering method is utilized between curing agent and the soil body
Produced a series of physical and chemical reaction, so as to obtain the reinforcing body with globality, water stability and some strength, energy
Foundation strength and modification modulus are effectively improved, the purpose of original place consolidated subsoil is reached.Applied because deep-cement stirring engineering method has
Construction equipment is simple, low vibration, low noise, it is environmentally safe, surrounding soil is made without lateral compression, short construction period and engineering
The advantages of valency is cheap, can obtain intensity in early stage.Prevent from, weak clay, sand, organoclay etc. can be applied to nearly all
Soil property, obtain good engineering effort in the country such as Japan, South Korea, economic benefit and social benefit are very notable.In recent years,
With marine reclamation land, the project such as seabed ultra-deep, the improvement of super thick soft layer are reinforced and discarded place re-uses it is further
Development, deep-cement stirring engineering method will further be used and promoted.
In the prior art, as waterborne building deep waterization and maximization are the development trends of water transport project, will be inevitable
Cause the depth of based process and thickness constantly to increase, quality requirement is also improved constantly, carried out when using deep agitation driller
In the treatment construction of ground deep-layer stirring, if occur the hard thing such as hard sand gravel or hard formation in running into soil layer, make drilling rod, stir
Mix blade and drilling tool produce it is larger rock, it is eccentric, larger resistance is produced to stirring drill tool, drilling rod and power output shaft, cause
Unit head is transferred to drilling rod, the moment of torsion of drilling tool can not be balanced, and larger impact injury is also resulted in suspension pile frame, substantially reduces work
Industry efficiency, increased cost of equipment maintenance, have a strong impact on service life of equipment.
Utility model content
Main purpose of the present utility model is the shortcoming for overcoming existing agitation driller power drive head to exist, there is provided a kind of
Output torque balance, moment of torsion is compensated automatically, construction precision is high, reliable and stable, energy-conserving and environment-protective, ensure construction speed and effectively extension
The power drive head of service life.
To achieve the above objectives, the solution that the utility model is used is：
A kind of power drive head, including：
Multiple planetary reducers, each planetary reducer includes adpting flange and the output shaft with little gear；
Gear-box, including multigroup drilling rod axle assembly, multigroup transition axle assembly, core pipe, casing, case lid and porous plug, wherein,
Each drilling rod axle assembly include hollow output shaft, gear wheel, radial bearing, the second outside framework oil seal, Xia Tonggai, it is upper it is logical lid and it is right
Connect disk；Each transition axle assembly includes transition axis, transition gear, needle bearing and shaft-cup；Core pipe is including body, along its axial direction
It is arranged on many Grouting Pipes and abutted flange of inside；
Lifting tackle group, including motor, frame, the guide plate positioned at the frame back side, the inclination biography positioned at frame side
Sensor, whitewashing joint and swivel coupling；
It is characterized in that：
The frame is frame framework body, and its underpart is installed in the upper surface of the case lid of gear-box；The lifting tackle group is consolidated
The installation site placed in the middle of the upper mounting plate loaded on frame；The guide plate is installed in the back side of frame and puts frame by its notch
In operation guide rail on construction when drive frame or power drive head move down with it is up；The inclination sensor is installed on machine
The side of frame, the control panel in control cabinl pulpit is connected to by holding wire；
The drilling rod axle assembly has four groups, point left and right each two groups of drilling rod axle assemblies they be on the cross section of gear-box
Arranged in squares simultaneously passes perpendicularly through its case lid and casing, consolidates at the middle part spline of the hollow output shaft on each drilling rod axle assembly
Dress gear wheel, the radial bearing and the second outside framework oil seal are set with being placed in tooth behind the relevant position of each hollow output shaft
In each mounting hole of roller box, the Xia Tonggai and Shang Tonggai is set with the lower end and upper end of hollow output shaft and is located at solid
In the respective mounting hole of toothing roller box；The swivel coupling is installed in the upper end of hollow output shaft, and the note set with its endoporus
Slurry passage insertion；The butt plate is installed in the bottom of hollow output shaft；
The multiple planetary reducer is arranged symmetrically and positioned at two groups of left and right drilling rod axle assembly on gear-box cross section
Outside, its quantity is consistent with the quantity of drilling rod axle；Described each planetary reducer is connected through flange and is installed in gear-box
Case lid outer face on each installation site；The output shaft of each planetary reducer enters in the casing of gear-box
Chamber, little gear thereon is engaged with the gear wheel on drilling rod axle assembly respectively, and the other end of each output shaft installs bearing
It is placed in each mounting hole of the casing with after the first outside framework oil seal, then, is also packaged in each installation using a tegillum
In hole；The top of each planetary reducer is fixedly mounted with motor；
The transition axle assembly has four groups, point left and right each two groups of transition axle assemblies, and they are located at left drilling rod axle assembly respectively
And the output shaft of left planetary reducer between and between right drilling rod axle assembly and the output shaft of right planetary reducer, it is described each
Transition gear on transition axle assembly is installed in transition axis medium position, the two ends of each transition axis by needle bearing
It is installed in each mounting hole of the casing of gear-box and case lid, then, is also packaged in each peace respectively using two shaft-cups
In dress hole；Transition gear on two groups of left transition axle assemblies intermesh after respectively with two groups of left drilling rod axle assemblies on it is big
Gear engage, the transition gear on two groups of right transition axle assemblies intermesh after respectively with two groups of right drilling rod axle assemblies on
Gear wheel is engaged；
In two groups of left drilling rod axle assemblies between front and rear two drilling rod axle assemblies and in two groups of right drilling rod axle assemblies before
Two drilling rod axle assemblies are rightabout rotations afterwards, and two drilling rod axle assemblies of diagonally opposed arrangement are equidirectional rotations；
The core pipe passes perpendicularly through the casing of gear-box and positioned at the geometric center of gear-box by body, described many
Grouting Pipe is symmetrically divided equally in tube cavity axial direction straight line and in radial direction, and its upper end is fixedly mounted with whitewashing joint；It is described right
Acting flange is installed in the bottom of core pipe；
The utility model can be that the motor is frequency conversion two-speed motor.
The utility model is also possible that multigroup drilling rod axle assembly can set three groups or four groups or five groups or six
Group, every group of drilling rod axle assembly can set three or four along gear-box fore-and-aft direction, and the planetary reducer, transition axis are total
Into setting quantity do respective change；Geometric center of the core pipe between four groups of adjacent drilling rod axle assemblies is set.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model power drive head；
Fig. 2 is the H direction views that frame in power drive head is removed in Fig. 1；
Fig. 3 is the top view of Fig. 2；
Fig. 4 is the upward view of Fig. 2；
Fig. 5 be in Fig. 2 A-A to sectional view；
Fig. 6 is B-B direction sectional view in Fig. 4；
Fig. 7 is F portions partial enlarged drawing in Fig. 6；
Fig. 8 is the utility model power drive head middle gear case middle gear linkage schematic diagram.
Specific embodiment
The utility model agitation driller is further described below in conjunction with embodiment described in accompanying drawing.
A kind of power drive head, including：Multiple planetary reducers, each planetary reducer 703 or 703 ' include connection
The output shaft 7032 or 7032 of flange 7031 or 7031 ' and with little gear 70321 or 70321 ' '；Gear-box 704, including it is many
Group drilling rod axle assembly, multigroup transition axle assembly, core pipe 7044, casing 7045, case lid 7046 and porous plug 711, wherein, each brill
Bar axle assembly 7042 or 7042 ' includes hollow output shaft 70421 or 70421 ', gear wheel 70422 or 70422 ', radial bearing
70423rd, the second outside framework oil seal 70424, lower logical lid 70425, upper logical lid 70426 and butt plate 70428；Each transition axle assembly
7043 or 7043 ' include transition axis 70431, transition gear 70432, needle bearing 70433 and shaft-cup 70435；Core pipe 7044
Including body 70441, along its axially arranged many Grouting Pipe 70442 and abutted flange 70443 internally；Lifting tackle group
701, including motor 702 or 702 ', frame 710, the guide plate 706 positioned at the back side of frame 710, positioned at the side of frame 710
Inclination sensor 707, whitewashing joint 708 and swivel coupling 709；Wherein：
The frame 710 is frame framework body, and its underpart is installed in the upper surface of the case lid 7046 of gear-box 704；It is described to carry
Rise the installation site placed in the middle that assembly pulley 701 is installed in the upper mounting plate 7101 of frame 710；The guide plate 706 is installed in frame 710
The back side and by its notch by frame 710 be placed on the guide rail of operation with construction when drive frame 710 or power drive head
Move down with it is up；The inclination sensor 707 is installed on the side of frame 710, and the control in control cabinl pulpit is connected to by holding wire
Panel processed；When drilling rod deflection occurs in drilling and whipping process in agitation driller, inclination sensor passes deviation situation in time
Control panel is delivered to, the perpendicularity that operator can just adjust the pile frame vertical post upper rail of suspension agitation driller carrys out correction of deviation
Value, with ensure power drive head move down with it is up during all the time be in and pile frame guide rail plumbness, it is ensured that drilling rod, stirring
Control of gradient of the drilling tool in drilling and whipping process is improved and reinforcing in the range of requiring so as to effectively improve Soft Soil Layer
The precision and quality of body.
The drilling rod axle assembly has four groups, point left and right each two groups of drilling rod axle assemblies 7042,7042 ' they in gear-box 704
Cross section on square arrangement and pass perpendicularly through its case lid 7046 and casing 7045, each drilling rod axle assembly 7042 or
Hollow output shaft 70421 or 70421 on 7042 ' ' middle part spline at be fixedly mounted with gear wheel 70422 or 70422 ', it is described centripetal
The outside framework oil seal 70424 of bearing 70423 and second is set with each hollow output shaft 70421 or 70421 ' relevant position after
It is placed in each mounting hole of gear-box 704, the lower logical lid 70425 and upper logical lid 70426 are set with hollow output shaft
70421 lower end and upper end and being located at is fixedly mounted with the respective mounting hole of gear-box 704；The swivel coupling 709 is installed in hollow
Output shaft 70421 or 70421 ' upper end, and with its endoporus set the insertion of slip casting passage 704211；The butt plate 70428
The bottom of hollow output shaft 70421 is installed in, the bottom of butt plate 70428 passes through drilling rod terminal pad jointed rod and drilling tool.
The multiple planetary reducer is arranged symmetrically and total positioned at the two groups of drilling rod axles in left and right on the cross section of gear-box 704
Into 7042,7042 ' outside, its quantity is consistent with the quantity of drilling rod axle；Described each planetary reducer 703 or 703 ' pass through
Its adpting flange 7031 or 7031 ' it is installed in each installation site on the outer face of the case lid 7046 of gear-box 704；It is described every
Individual planetary reducer 703 or 703 ' output shaft 7032 or 7032 ' enters the inner chamber of casing 7045 of gear-box 704, thereon small
Gear wheel 70422 or 70422 on gear 70322 or 70322 ' respectively with drilling rod axle assembly 7042 or 7042 ' ' engage, it is described
Each output shaft 7032 or 7032 ' the other end install the outside framework oil seal 70414 of bearing 70413 and first after be placed in the casing
In 7045 each mounting hole, then, also it is packaged in each mounting hole using a tegillum 70415；Described each planet subtracts
Fast machine 703 or 703 ' top be fixedly mounted with motor 702 or 702 ', the motor 702 or 702 ' it is frequency conversion two-speed motor,
Start the impact reduced to power network in power drive head, be easy to gentle start and work.
The transition axle assembly has four groups, point left and right each two groups of transition axle assemblies 7043,7043 ', and they are located at a left side respectively
Between the output shaft 7032 of drilling rod axle assembly 7042 and left planetary reducer 703 and right drilling rod axle assembly 7042 ' and right lateral star
Between the output shaft 7032 ' of reductor 703 ', the transition gear 70432 on described each transition axle assembly 7043 passes through needle roller
Bearing 70433 is installed in the medium position of transition axis 70431, and the two ends of each transition axis 70431 are installed in gear-box 704
Casing 7045 and case lid 7046 each mounting hole in, then, also using two shaft-cups 70435 be packaged in respectively each installation
In hole；Transition gear 70432 on two groups of left transition axle assemblies 7043 is total with two groups of left drilling rod axles respectively after intermeshing
Engaged into the gear wheel 70422 on 7042, the transition gear 70432 ' on two groups of right transition axle assemblies 7043 ' intermeshes
Engaged with the gear wheel 70422 ' on two groups of right drilling rod axle assemblies 7042 ' respectively afterwards.
In four groups of drilling rod axle assemblies between two groups of front and rear two drilling rod axle assemblies 7042 of left drilling rod axle assembly and
Front and rear two drilling rod axle assemblies 7042 ' are rightabout rotation, two brills of diagonally opposed arrangement in two groups of right drilling rod axle assemblies
Bar axle assembly 7042,7042 ' is equidirectional rotation；Due to equal between the two groups of drilling rod axle assemblies in left and right in four groups of drilling rod axle assemblies
It is intermeshed by gear wheel and transition gear, and every group of drilling rod axle assembly drives by a motor and planetary reducer,
Intermeshing drive mechanism can ensure the oppositely oriented and synchronous rotary of two adjacent groups drilling rod, so can effectively keep moment of torsion
Balance, will to hang pile frame influence be minimized, can run into hard thing in any drilling tool or drilling rod that are connected with drilling rod axle again
Or during hard formation, its moment of torsion is compensated automatically by other drilling rods.Due to using four groups of drilling rod axle assembly link gears, in agitation driller
Run into work progress load it is lighter when, wherein one can be closed to two motors, reaching energy-saving and extension motor makes
With the purpose in life-span.Even in extreme circumstances, if there are a certain motor damages, it is also possible to after adhering to completing to construct again more
The motor of damage is changed, construction speed is effectively ensured.
The core pipe 7044 passes perpendicularly through the casing 7045 of gear-box 704 and positioned at gear-box 704 by body 70441
Geometric center, many Grouting Pipes 70442 are in the inner chamber of body 70441 axial direction straight line and symmetrically equal in radial direction
Point, its upper end is fixedly mounted with whitewashing joint 708；The abutted flange 70443 is installed in the bottom of core pipe 7044, agitation driller
Middle part shotcrete pipe is then connected on abutted flange, the cement mortar for passing through pipeline by backstage mud disposal system, by middle part
The mouth spray of shotcrete pipe sprays to neighbouring soil layer from different perspectives, and to the diffusion of soil layer around and spreads rapidly, is easy to original place soil
Improvement and reinforcing, improve basement process quality.
Multigroup drilling rod axle assembly of the utility model power drive head can set three groups or four groups or five groups or six
Group, every group of drilling rod axle assembly 7042,7042 ' can set three or four along the fore-and-aft direction of gear-box 704, and the planet subtracts
Fast machine 703,703 ', the setting quantity of transition axle assembly 7043,7043 ' do respective change, to ensure that power drive head has foot
Enough moments of torsion and power, effectively improve the operating efficiency of agitation driller；The core pipe 7044 is in four groups of adjacent drilling rod axle assemblies
7042, the geometric center between 7042 ' is set, it is ensured that to original place when every group of drilling tool drilling rod of agitation driller carries out drilling, stirs
Soil sprays enough cement grouts, advantageously in raising stratum improved effect and strengthening quality.
Claims (3)
1. a kind of power drive head, including：
Multiple planetary reducers, each planetary reducer（703、703’）Include adpting flange（7031、7031’）With with small
Gear（70321、70321’）Output shaft（7032、7032’）；
Gear-box（704）, including multigroup drilling rod axle assembly, multigroup transition axle assembly, core pipe（7044）, casing（7045）, case lid
（7046）And porous plug（711）, wherein, each drilling rod axle assembly（7042、7042’）Include hollow output shaft（70421、
70421’）, gear wheel（70422、70422’）, radial bearing（70423）, the second outside framework oil seal（70424）, Xia Tonggai
（70425）, Shang Tonggai（70426）And butt plate（70428）；Each transition axle assembly（7043、7043’）Include transition axis
（70431、70431’）, transition gear（70432、70432’）, needle bearing（70433）And shaft-cup（70435）；Core pipe（7044）
Including body（70441）, along its axially arranged many Grouting Pipe internally（70442）And abutted flange（70443）；
Lifting tackle group（701）, including motor（702、702’）, frame（710）, positioned at frame（710）The guide plate at the back side
（706）, positioned at frame（710）The inclination sensor of side（707）, whitewashing joint（708）And swivel coupling（709）；
It is characterized in that：
The frame（710）It is frame framework body, its underpart is installed in gear-box（704）Case lid（7046）Upper surface；It is described
Lifting tackle group（701）It is installed in frame（710）Upper mounting plate（7101）Installation site placed in the middle；The guide plate（706）Gu
Loaded on frame（710）The back side and by its notch by frame（710）It is placed on the guide rail of operation and drives frame with construction
（710）Or power drive head move down with it is up；The inclination sensor（707）It is installed on frame（710）Side, by signal
Line is connected to the control panel in control cabinl pulpit；
The drilling rod axle assembly has four groups, point left and right each two groups of drilling rod axle assemblies（7042、7042’）They are in gear-box（704）
Cross section on square arrangement and pass perpendicularly through its case lid（7046）And casing（7045）, each drilling rod axle assembly
（7042、7042’）On hollow output shaft（70421、70421’）Middle part spline at be fixedly mounted with gear wheel（70422、70422’）,
The radial bearing（70423）With the second outside framework oil seal（70424）It is set with each hollow output shaft（70421、
70421’）Relevant position after be placed in gear-box（704）Each mounting hole in, the lower logical lid（70425）With upper logical lid
（70426）It is set with hollow output shaft（70421、70421’）Lower end and upper end after, and positioned at being fixedly mounted with gear-box（704）
Respective mounting hole in；The swivel coupling（709）It is installed in hollow output shaft（70421、70421’）Upper end, and with its in
The slip casting passage that hole is set（704211）Insertion；The butt plate（70428）It is installed in hollow output shaft（70421、70421’）
Bottom；
The multiple planetary reducer is in gear-box（704）It is arranged symmetrically on cross section and total positioned at each two groups of drilling rod axles in left and right
Into（7042,7042 '）Outside, its quantity is consistent with the quantity of drilling rod axle assembly；Described each planetary reducer（703、
703’）It is connected through flange（7031、7031’）It is installed in gear-box（704）Case lid（7046）Outer face on it is each
Individual installation site；Described each planetary reducer（703、703’）Output shaft（7032、7032’）Into gear-box（704）'s
Casing（7045）Inner chamber, little gear thereon（70322、70322’）Respectively with drilling rod axle assembly（7042、7042’）On canine tooth
Wheel（70422、70422’）Engagement, described each output shaft（7032、7032’）The other end install bearing（70413）With first
Outside framework oil seal（70414）After be placed in the casing（7045）Each mounting hole in, then, also using a tegillum（70415）
It is packaged in each mounting hole；Described each planetary reducer（703、703’）Top be fixedly mounted with motor（702、702’）；
The transition axle assembly has four groups, point left and right each two groups of transition axle assemblies（7043、7043’）, they are located at left brill respectively
Bar axle assembly（7042）With left planetary reducer（703）Output shaft（7032）Between and right drilling rod axle assembly（7042’）With
Right planetary reducer（703’）Output shaft（7032’）Between, described each transition axle assembly（7043、7043’）On transition
Gear（70432、70432’）Pass through needle bearing（70433）It is installed in transition axis（70431、70431’）Medium position, institute
State each transition axis（70431、70431’）Two ends be installed in gear-box（704）Casing（7045）And case lid（7046）'s
In each mounting hole, then, also using two shaft-cups（70435）It is packaged in respectively in each mounting hole；Two groups of left transition
Axle assembly（7043）On transition gear（70432）After intermeshing respectively with two groups of left drilling rod axle assemblies（7042）On canine tooth
Wheel（70422）Engagement, two groups of right transition axle assemblies（7043’）On transition gear（70432’）After intermeshing respectively with
Two groups of right drilling rod axle assemblies（7042’）On gear wheel（70422’）Engagement；
Front and rear two drilling rod axle assemblies in two groups of left drilling rod axle assemblies（7042,）Between and two groups of right drilling rod axle assemblies in
Front and rear two drilling rod axle assemblies（7042’）It is rightabout rotation, two drilling rod axle assemblies of diagonally opposed arrangement（7042、
7042’）It is equidirectional rotation；
The core pipe（7044）By body（70441）Pass perpendicularly through gear-box（704）Casing（7045）And positioned at gear-box
（704）Geometric center, many Grouting Pipes（70442）In body（70441）Inner chamber axial direction straight line and in radial direction side
Divide equally to symmetrical, its upper end is fixedly mounted with whitewashing joint（708）；The abutted flange（70443）It is installed in core pipe（7044）Most
Lower end.
2. power drive head according to claim 1, it is characterised in that：The motor（702、702’）It is frequency conversion double speed
Motor.
3. power drive head according to claim 1, it is characterised in that：Multigroup drilling rod axle assembly can set three
Group or four groups or five groups or six groups, every group of drilling rod axle assembly（7042、7042’）Can be along gear-box（704）Fore-and-aft direction sets
Put three or four, the planetary reducer（703、703’）, transition axle assembly（7043、7043’）Setting quantity do accordingly
Change；The core pipe（7044）In four groups of adjacent drilling rod axle assemblies（7042、7042’）Between geometric center set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620720754.9U CN206256439U (en) | 2016-07-11 | 2016-07-11 | A kind of power drive head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620720754.9U CN206256439U (en) | 2016-07-11 | 2016-07-11 | A kind of power drive head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206256439U true CN206256439U (en) | 2017-06-16 |
Family
ID=59022231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620720754.9U Withdrawn - After Issue CN206256439U (en) | 2016-07-11 | 2016-07-11 | A kind of power drive head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206256439U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105970914A (en) * | 2016-07-11 | 2016-09-28 | 上海工程机械厂有限公司 | Power drive head |
| CN109972607A (en) * | 2019-04-25 | 2019-07-05 | 中国水电基础局有限公司 | Drilling vibrating impacter, vibro-replacement stone column machine and soft groundsill reinforcing construction |
| CN109972607B (en) * | 2019-04-25 | 2024-04-26 | 中国水电基础局有限公司 | Drilling vibroflotation device and vibroflotation gravel pile machine |
-
2016
- 2016-07-11 CN CN201620720754.9U patent/CN206256439U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105970914A (en) * | 2016-07-11 | 2016-09-28 | 上海工程机械厂有限公司 | Power drive head |
| CN105970914B (en) * | 2016-07-11 | 2018-01-19 | 上海工程机械厂有限公司 | A kind of power drive head |
| CN109972607A (en) * | 2019-04-25 | 2019-07-05 | 中国水电基础局有限公司 | Drilling vibrating impacter, vibro-replacement stone column machine and soft groundsill reinforcing construction |
| CN109972607B (en) * | 2019-04-25 | 2024-04-26 | 中国水电基础局有限公司 | Drilling vibroflotation device and vibroflotation gravel pile machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170616 Effective date of abandoning: 20180119 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20170616 Effective date of abandoning: 20180119 |