CN108892058A - It is a kind of can 360 degree of any angles rotation balance crane of crane - Google Patents
It is a kind of can 360 degree of any angles rotation balance crane of crane Download PDFInfo
- Publication number
- CN108892058A CN108892058A CN201810763085.7A CN201810763085A CN108892058A CN 108892058 A CN108892058 A CN 108892058A CN 201810763085 A CN201810763085 A CN 201810763085A CN 108892058 A CN108892058 A CN 108892058A
- Authority
- CN
- China
- Prior art keywords
- fixed column
- lifting
- crane
- rotation seat
- rotation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/16—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs supported by columns, e.g. towers having their lower end mounted for slewing movements
- B66C23/163—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs supported by columns, e.g. towers having their lower end mounted for slewing movements where only part of the column rotates, i.e. at least the bottom part is fixed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/68—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles mounted on, or guided by, jibs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses it is a kind of can the balance crane of crane that rotates of 360 degree any angles,Including lifting set and fixed column,The pedestal upper end is vertically equipped with fixed column,Fixed column upper end sliding sleeve is equipped with lifting set,Lifting set lower end is equipped with the sliding cavity matched with fixed column,Lift drive mechanism is equipped between lifting set and fixed column,It is slided in fixed column to drive lifting to cover,The lifting set upper side rotation is equipped with rotation seat,Steering driving mechanism is equipped between rotation seat and lifting set,Rotation seat is turned to by steering driving mechanism,Rotation seat upper end derricking gear,The configuration of the present invention is simple,Rationally,It is slidably connected by the setting realization of conductor rod and conductor loop,This slidingtype power supply mode is without having to worry about there is the problem of wire fracture,The distribution of conducting wire in this way would not be interfered with the rotation of device,Improve the adjustable range of device,It is practical.
Description
Technical field
The present invention relates to technical field of crane equipment, it is specifically a kind of can 360 degree of any angles rotation crane balance
It hangs.
Background technique
Balance crane is a kind of novel material handling appliance, it goes up and down weight, generation using unique spiral lifting mechanism
For manual labor come the mechanical equipment that reduces labor intensity.Existing balance crane is during rotation due to the electric wire of control route
More, the electric wire of control circuit tends not to that balance crane is followed to rotate together during balance crane rotation, results in this way
The control electric wire of balance crane can be wrapped on balance crane, constrain the working range of balance crane, and What is more causes control circuit
Electric wire twist disconnected, influence the normal use of balance crane.
In view of the above-mentioned problems, there is presently provided it is a kind of can the balance crane of crane that rotates of 360 degree any angles.
Summary of the invention
The purpose of the present invention is to provide it is a kind of can the balance crane of crane that rotates of 360 degree any angles, it is above-mentioned to solve
The problem of being proposed in background technique.
To achieve the above object, the present invention provides the following technical solutions：
It is a kind of can 360 degree of any angles rotation balance crane of crane, including lifting set and fixed column, the pedestal upper end it is vertical
Equipped with fixed column, fixed column upper end sliding sleeve is equipped with lifting set, and lifting set lower end is equipped with the sliding cavity matched with fixed column, rises
It is equipped with lift drive mechanism between drop set and fixed column, is slided in fixed column so that lifting be driven to cover, the lifting set upper side
Rotation be equipped with rotation seat, rotation seat and lifting set between be equipped with steering driving mechanism, by steering driving mechanism to rotation seat into
Row turns to, rotation seat upper end derricking gear, and the fixed column lower left side is equipped with electrical connector socket, and the output end of electrical connector socket is set
Have a No.1 cathode conductor bar and No.1 positive wire bar, the sliding cavity wall be equipped with No.1 anode ring and No.1 cathode ring,
No.1 anode ring and the upper end sliding contact of No.1 positive wire bar, No.1 cathode ring and the bar sliding contact of No.1 cathode conductor, institute
It states and is equipped with distributing module, distributor point block and rotary drive mechanism and derricking gear electric connection inside rotation seat, under the distributing module
End is equipped with No. two cathode rings and No. two anode rings, is equipped with No. two positive wire bars and No. two cathode conductor bars in the lifting set,
No. two positive wire bar upper ends and No. two anode ring sliding contacts, No. two cathode conductor bar upper ends connect with No. two cathode ring slidings
Touching, No. two positive wire bar lower ends are connect with No.1 anode ring, and No. two cathode conductor bar lower ends are connect with No.1 cathode ring,
For this slidingtype power supply mode without having to worry about there is the problem of wire fracture, the distribution of such conducting wire would not be with the rotation of device
It interferes, improves the adjustable range of device.
As a further solution of the present invention：The elevating mechanism includes the lifting motor positioned at sliding cavity upper surface, sliding
The section of dynamic chamber and fixed column is all rectangle, and the output end of lifting motor is equipped with lifting screw, and lifting screw protrudes into fixed capital
In the lifting screw hole in portion, lifting screw is matched with lifting screw hole, under the drive of lifting motor, lifting screw and fixed column phase
To rotation, under the action of screw thread, lifting set is slided up and down along fixed column, so that device height be adjusted.
As a further solution of the present invention：The steering driving mechanism includes the Rotational Cylindrical positioned at rotation seat lower end, is risen
Drop set upper side is equipped with the rolling bearing matched with Rotational Cylindrical, is equipped with transmission gear, transmission gear on the outside of the fixed column upper end
The rotation seat lower end in left side is fixed with rotating electric machine, and the output end of rotating electric machine is equipped with driving gear, drives gear and driving cog
Wheel intermeshing, under the action of rotating electric machine, driving gear band nutating gear rotation, so that entire rotation seat be driven to turn
It is dynamic, so as to the steering of realization device, auxiliary support mechanism is additionally provided between the fixed column and rotation seat.
As a further solution of the present invention：The auxiliary support mechanism includes the support ring on the outside of fixed column, branch
Rotation seat lower end above pushing out ring is fixed with auxiliary leg, and auxiliary leg lower end is equipped with auxiliary pulley, and the support ring is equipped with
The sliding groove matched with auxiliary pulley.
As a further solution of the present invention：The rotation seat lower end outside is equipped with protective jacket, and protective jacket will be in fixed column
End shield is lived, to play the role of protection.
As a further solution of the present invention：The derricking gear includes the boom positioned at rotation seat upper end, boom upper end
It is rotatably connected to No.1 hydraulic stem, the output end of No.1 hydraulic stem is equipped with hoist crane, is wound with lifting rope, lifting rope on hoist crane
Lower end bolt has hook, and the rotation seat upper right side is rotatably connected to No. two hydraulic stems, the output end and No.1 liquid of No. two hydraulic stems
Rotation connection on the downside of compression bar.
Compared with prior art, the beneficial effects of the invention are as follows：The configuration of the present invention is simple, rationally, by conductor rod and leading
The setting realization of wire loop is slidably connected, and this slidingtype power supply mode is without having to worry about there is the problem of wire fracture, such conducting wire
Distribution would not be interfered with the rotation of device, improve the adjustable range of device, it is practical.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram of distributing module lower end in the present invention.
Fig. 3 is the structure partial enlarged drawing in the present invention.
Wherein：Lifting set 1, fixed column 2, pedestal 3, electrical connector socket 4, lifting screw hole 5, lifting screw 6, No.1 anode ring 7,
No.1 cathode ring 8, lifting motor 9, sliding cavity 10, auxiliary pulley 11, auxiliary leg 12, rotation seat 13, transmission gear 14, rotation
Column 15, rolling bearing 16, the cathode ring 18, two of boom 17, two anode ring 19, rotating electric machine 20, rotation axis 21, driving gear
22, protective jacket 23, support ring 24, No.1 cathode conductor bar 25, No.1 positive wire bar 26, No.1 hydraulic stem 27, angle are hydraulic
Bar 28, hoist crane 29, lifting rope 30, hook 31, No. two positive wire bars 32, No. two cathode conductor bars 33, distributing modules 34.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1~3, in the embodiment of the present invention, it is a kind of can the rotation of 360 degree of any angles balance crane of crane, packet
Lifting set 1 and fixed column 2 are included, 3 upper end of pedestal is vertically equipped with fixed column 2, and 2 upper end sliding sleeve of fixed column is equipped with lifting set 1,
1 lower end of lifting set is equipped with the sliding cavity 10 matched with fixed column 2, is equipped with elevator drive machine between lifting set 1 and fixed column 2
Structure, so that lifting set 1 be driven to slide in fixed column 2, the lifting covers the rotation of 1 upper end and is equipped with rotation seat 13,13 He of rotation seat
It is equipped with steering driving mechanism between lifting set 1, rotation seat 13 is turned to by steering driving mechanism, on the rotation seat 13
Derricking gear is held, 2 lower left side of fixed column is equipped with electrical connector socket 4, and the output end of electrical connector socket 4 is equipped with No.1 cathode conductor bar
25 and No.1 positive wire bar 26,10 inner wall of sliding cavity is equipped with and No.1 anode ring 7 and No.1 cathode ring 8, No.1 anode
Ring 7 and the 26 upper end sliding contact of No.1 positive wire bar, No.1 cathode ring 8 and 25 sliding contact of No.1 cathode conductor bar, it is described
It is equipped with distributing module 34, distributor point block 34 and rotary drive mechanism inside rotation seat 13 and derricking gear is electrically connected, the distribution
34 lower end of block is equipped with No. two cathode rings 18 and No. two anode rings 19, is equipped with No. two positive wire bars 32 and two in the lifting set 1
Number cathode conductor bar 33, No. two 32 upper ends of positive wire bar and No. two 19 sliding contacts of anode ring, on No. two cathode conductor bars 33
End and No. two 18 sliding contacts of cathode ring, 32 lower end of No. two positive wire bars are connect with No.1 anode ring 7, and No. two cathode are led
33 lower end of line bar is connect with No.1 cathode ring 8, and this slidingtype power supply mode is without having to worry about there is the problem of wire fracture, in this way
The distribution of conducting wire would not be interfered with the rotation of device, improve the adjustable range of device.
The elevating mechanism includes the lifting motor 9 positioned at 10 upper surface of sliding cavity, the section of sliding cavity 10 and fixed column 2
It is all rectangle, the output end of lifting motor 9 is equipped with lifting screw 6, and lifting screw 6 protrudes into the lifting screw hole 5 at 2 top of fixed column
In, lifting screw 6 is matched with lifting screw hole 5, and under the drive of lifting motor 9, lifting screw 6 and fixed column 2 are relatively rotated,
Under the action of screw thread, lifting set 1 is slided up and down along fixed column 2, so that device height be adjusted.
The steering driving mechanism includes the Rotational Cylindrical 15 positioned at 13 lower end of rotation seat, and 1 upper end of lifting set is equipped with and rotation
The rolling bearing 16 that column 15 matches, 2 upper end of the fixed column outside are equipped with transmission gear 14, the rotation in 14 left side of transmission gear
13 lower ends of seat are fixed with rotating electric machine 20, and the output end of rotating electric machine 20 is equipped with driving gear 22, drives gear 22 and driving cog
14 intermeshing of wheel, under the action of rotating electric machine 20, driving gear 22 is rotated with nutating gear 14, to drive entire turn
Dynamic seat 13 rotates, and so as to the steering of realization device, is additionally provided with auxiliary support mechanism between the fixed column 2 and rotation seat 13.
Auxiliary support mechanism includes the support ring 24 positioned at 2 outside of fixed column, 13 lower end of rotation seat of 24 top of support ring
It is fixed with auxiliary leg 12,12 lower end of auxiliary leg is equipped with auxiliary pulley 11, and the support ring 24 is equipped with and auxiliary pulley 11
The sliding groove matched.
13 lower end outside of rotation seat is equipped with protective jacket 23, and protective jacket 23 covers 2 upper end of fixed column, to play guarantor
The effect of shield.
The derricking gear includes the boom 17 positioned at 13 upper end of rotation seat, and it is hydraulic that 17 upper end of boom is rotatably connected to No.1
Bar 27, the output end of No.1 hydraulic stem 27 are equipped with hoist crane 29, are wound with lifting rope 30,30 lower end bolt of lifting rope on hoist crane 29
There is hook 31,13 upper right side of rotation seat is rotatably connected to No. two hydraulic stems 28, the output end and No.1 of No. two hydraulic stems 28
It is rotatablely connected on the downside of hydraulic stem 27.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (6)
1. one kind can 360 degree of any angles rotation balance crane of crane, including lifting set（1）And fixed column（2）, feature exists
In the pedestal（3）Upper end is vertically equipped with fixed column（2）, fixed column（2）Upper end sliding sleeve is equipped with lifting set（1）, lifting set
（1）Lower end is equipped with and fixed column（2）The sliding cavity matched（10）, lifting set（1）And fixed column（2）Between be equipped with lifting driving
Mechanism, so that lifting be driven to cover（1）In fixed column（2）Upper sliding, the lifting set（1）Upper end rotation is equipped with rotation seat（13）,
Rotation seat（13）It is covered with lifting（1）Between be equipped with steering driving mechanism, by steering driving mechanism to rotation seat（13）Turned
To the rotation seat（13）Upper end derricking gear, the fixed column（2）Lower left side is equipped with electrical connector socket（4）, electrical connector socket（4）
Output end be equipped with No.1 cathode conductor bar（25）With No.1 positive wire bar（26）, the sliding cavity（10）Inner wall is equipped with and one
Number anode ring（7）With No.1 cathode ring（8）, No.1 anode ring（7）With No.1 positive wire bar（26）Upper end sliding contact, No.1
Cathode ring（8）With No.1 cathode conductor bar（25）Sliding contact, the rotation seat（13）Inside is equipped with distributing module（34）, distributor point
Block（34）It is electrically connected with rotary drive mechanism and derricking gear, the distributing module（34）Lower end is equipped with No. two cathode rings（18）With
No. two anode rings（19）, the lifting set（1）Inside it is equipped with No. two positive wire bars（32）With No. two cathode conductor bars（33）, No. two
Positive wire bar（32）Upper end and No. two anode rings（19）Sliding contact, No. two cathode conductor bars（33）Upper end and No. two cathode rings
（18）Sliding contact, No. two positive wire bars（32）Lower end and No.1 anode ring（7）Connection, No. two cathode conductor bars（33）
Lower end and No.1 cathode ring（8）Connection.
2. it is according to claim 1 can 360 degree of any angles rotation balance crane of crane, which is characterized in that the liter
Descending mechanism includes being located at sliding cavity（10）The lifting motor of upper surface（9）, sliding cavity（10）And fixed column（2）Section be all square
Shape, lifting motor（9）Output end be equipped with lifting screw（6）, lifting screw（6）Protrude into fixed column（2）The lifting screw hole at top
（5）In, lifting screw（6）With lifting screw hole（5）It matches.
3. it is according to claim 1 can 360 degree of any angles rotation balance crane of crane, which is characterized in that described turn
It include being located at rotation seat to driving mechanism（13）The Rotational Cylindrical of lower end（15）, lifting set（1）Upper end is equipped with and Rotational Cylindrical（15）Phase
The rolling bearing of cooperation（16）, the fixed column（2）Transmission gear is equipped on the outside of upper end（14）, transmission gear（14）Left side turns
Dynamic seat（13）Lower end is fixed with rotating electric machine（20）, rotating electric machine（20）Output end be equipped with driving gear（22）, drive gear
（22）With transmission gear（14）Intermeshing, the fixed column（2）And rotation seat（13）Between be additionally provided with auxiliary support mechanism.
4. it is according to claim 3 can 360 degree of any angles rotation balance crane of crane, which is characterized in that it is described auxiliary
Helping supporting mechanism includes being located at fixed column（2）The support ring in outside（24）, support ring（24）The rotation seat of top（13）Lower end is solid
Surely there is auxiliary leg（12）, auxiliary leg（12）Lower end is equipped with auxiliary pulley（11）, the support ring（24）It is equipped with and auxiliary
Pulley（11）The sliding groove matched.
5. it is according to claim 1 can 360 degree of any angles rotation balance crane of crane, which is characterized in that described
Loop wheel machine structure includes being located at rotation seat（13）The boom of upper end（17）, boom（17）Upper end is rotatably connected to No.1 hydraulic stem（27）,
No.1 hydraulic stem（27）Output end be equipped with hoist crane（29）, hoist crane（29）On be wound with lifting rope（30）, lifting rope（30）
Lower end bolt has hook（31）, the rotation seat（13）Upper right side is rotatably connected to No. two hydraulic stems（28）, No. two hydraulic stems（28）
Output end and No.1 hydraulic stem（27）Downside rotation connection.
6. according to claim 1-5 it is any it is described can the balance crane of crane that rotates of 360 degree any angles, which is characterized in that
The rotation seat（13）Lower end outside is equipped with protective jacket（23）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810763085.7A CN108892058A (en) | 2018-07-12 | 2018-07-12 | It is a kind of can 360 degree of any angles rotation balance crane of crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810763085.7A CN108892058A (en) | 2018-07-12 | 2018-07-12 | It is a kind of can 360 degree of any angles rotation balance crane of crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108892058A true CN108892058A (en) | 2018-11-27 |
Family
ID=64349533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810763085.7A Pending CN108892058A (en) | 2018-07-12 | 2018-07-12 | It is a kind of can 360 degree of any angles rotation balance crane of crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108892058A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113460868A (en) * | 2021-08-11 | 2021-10-01 | 绍兴南特起重设备有限公司 | Double dynamical cantilever crane that offshore platform was used |
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|---|---|---|---|---|
| DE2363367A1 (en) * | 1973-12-20 | 1975-06-26 | Stefan Falticko | Tower crane with two jibs - has top strut of each attached to vertically adjustable holder component |
| CN2129757Y (en) * | 1992-07-16 | 1993-04-14 | 阳泉市电工机械厂 | Mechanical balence crane |
| CN2250939Y (en) * | 1996-01-22 | 1997-04-02 | 鞍山钢铁公司 | Slip ring current collector for jib slewing gear of mechanical hand of crane going in ring |
| JP2000351577A (en) * | 1999-06-14 | 2000-12-19 | Taisei Corp | Horizontal stay for tower crane |
| CN201209092Y (en) * | 2008-03-07 | 2009-03-18 | 烟台市城市排水管理处养护管理所 | Sludge hoisting machine |
| CN201217617Y (en) * | 2008-05-09 | 2009-04-08 | 新疆塔林投资(集团)有限责任公司 | Mechanized charging apparatus for drilling crew |
| CN103434914A (en) * | 2013-08-13 | 2013-12-11 | 广州市京龙工程机械有限公司 | Trolley conductor energy storage type construction elevator |
| CN104891348A (en) * | 2015-05-20 | 2015-09-09 | 北京市自来水集团门城污水处理有限公司 | Small movable crane |
| CN206985563U (en) * | 2017-05-10 | 2018-02-09 | 江西科技学院 | A kind of manhole cover hoisting device |
-
2018
- 2018-07-12 CN CN201810763085.7A patent/CN108892058A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2363367A1 (en) * | 1973-12-20 | 1975-06-26 | Stefan Falticko | Tower crane with two jibs - has top strut of each attached to vertically adjustable holder component |
| CN2129757Y (en) * | 1992-07-16 | 1993-04-14 | 阳泉市电工机械厂 | Mechanical balence crane |
| CN2250939Y (en) * | 1996-01-22 | 1997-04-02 | 鞍山钢铁公司 | Slip ring current collector for jib slewing gear of mechanical hand of crane going in ring |
| JP2000351577A (en) * | 1999-06-14 | 2000-12-19 | Taisei Corp | Horizontal stay for tower crane |
| CN201209092Y (en) * | 2008-03-07 | 2009-03-18 | 烟台市城市排水管理处养护管理所 | Sludge hoisting machine |
| CN201217617Y (en) * | 2008-05-09 | 2009-04-08 | 新疆塔林投资(集团)有限责任公司 | Mechanized charging apparatus for drilling crew |
| CN103434914A (en) * | 2013-08-13 | 2013-12-11 | 广州市京龙工程机械有限公司 | Trolley conductor energy storage type construction elevator |
| CN104891348A (en) * | 2015-05-20 | 2015-09-09 | 北京市自来水集团门城污水处理有限公司 | Small movable crane |
| CN206985563U (en) * | 2017-05-10 | 2018-02-09 | 江西科技学院 | A kind of manhole cover hoisting device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113460868A (en) * | 2021-08-11 | 2021-10-01 | 绍兴南特起重设备有限公司 | Double dynamical cantilever crane that offshore platform was used |
| CN113460868B (en) * | 2021-08-11 | 2023-12-08 | 绍兴南特起重设备有限公司 | Dual-power cantilever crane for offshore platform |
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Application publication date: 20181127 |