CN107188039B - Overhead trolley combined hanging method - Google Patents
Overhead trolley combined hanging method Download PDFInfo
- Publication number
- CN107188039B CN107188039B CN201710407233.7A CN201710407233A CN107188039B CN 107188039 B CN107188039 B CN 107188039B CN 201710407233 A CN201710407233 A CN 201710407233A CN 107188039 B CN107188039 B CN 107188039B
- Authority
- CN
- China
- Prior art keywords
- lifting
- injection cylinder
- overhead trolley
- assembly
- sub
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
-
- 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
- B66C1/10—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 by mechanical means
-
- 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
- B66C1/10—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 by mechanical means
- B66C1/107—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 by mechanical means for lifting engines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a kind of overhead trolley combined hanging methods, comprising the following steps: lifting part combination: combines to form lifting sub-assembly by least two lifting parts of dispersion using auxiliary member；Lifting: lifting sub-assembly is lifted by crane using overhead trolley；Lifting is in place: overhead trolley will lift sub-assembly and transport to target position and dropping place；Fastening lifting sub-assembly: lifting sub-assembly installation is anchored on target location；Remove auxiliary member.By being lifted using overhead trolley, finally removing the auxiliary member that group shares again after being connected the lifting part of dispersion using auxiliary member and forming sub-assembly, this mode does not need to add suspension centre the present invention, does not need to increase bottle gouard moved by hands yet.And the mode once lifted after this combination, reduce precision adjustment difficulty after lifting.The method improves working efficiency, reduces labor intensity, has saved cost, shortened construction period.
Description
Technical field
The present invention relates to hanging method fields, particularly, are related to a kind of overhead trolley combined hanging method.
Background technique
Aircraft engine test stand includes test bay workshop and test bay process equipment.When certain test bay workshop building,
What is installed in test cell is a mono rail motor chain block crane, and electric block is mounted on the I-shaped hung under the workshop roof truss of test cell
On steel, I-steel is mounted among workshop, so overhead trolley operating path can only front and back walking, and be unable to left and right rows and walk.This
Crane designed use is that engine is lifted on rack from ground, so front and back walking is only needed to be able to satisfy requirement.But
It is, after test bay workshop building is complete, when carrying out the installation of test bay process equipment system, the device distribution of some heavier mass
In all directions of workshop, it is also desirable to crane lifting.
Exhaust system in certain test bay process equipment is divided into left exhaust and right exhaust.The level-one injection cylinder of exhaust system is pacified
In test cell, the first from left grade injection cylinder is consistent with right level-one injection barrel structure, is distributed in centered on engine mounting stand frame
Two sides.Required precision after the installation of level-one injection cylinder is very high.
During the installation process, since the crane of test cell is overhead trolley, can only front and back walking, walking cannot be controlled, because
This level-one injection cylinder increases great difficulty to installation not within the scope of the lifting of crane.It is at one one according to previous experiences
2 suspension centres are added under the workshop roof truss of grade injection cylinder installation vertical line position, are installed using 2 bottle gouards moved by hands.Left and right each one
A level-one injection cylinder, it is necessary to add 4 suspension centres.The method also needs manually to add suspension centre, needs to carry out Strength co-mputation to suspension centre,
Increase workload；Next needs to increase bottle gouard moved by hands, increases the investment of equipment, and artificial drawing cucurbit reduces working efficiency；This peace
Dress method is that left and right injection cylinder is installed respectively there are also bigger defect, and it is consistent and to engine to be difficult both adjustment absolute altitude
Centre distance is consistent, is extremely difficult to technical requirements.
Summary of the invention
The present invention provides a kind of overhead trolley combined hanging method, to solve existing to be distributed in hanging for overhead trolley two sides
Piece installing, which is needed to increase suspension centre and the investment of workload and equipment is lifted, increased using bottle gouard moved by hands and is lifted respectively, to be caused to lift
After the technical issues of being difficult Adjustment precision requirement.
The technical solution adopted by the invention is as follows:
A kind of overhead trolley combined hanging method, comprising the following steps: lifting part combination: using auxiliary member by dispersion extremely
Few two lifting parts combine to form lifting sub-assembly；Lifting: lifting sub-assembly is lifted by crane using overhead trolley；Lifting is just
Position: overhead trolley will lift sub-assembly and transport to target position and dropping place；Fastening lifting sub-assembly: lifting sub-assembly installation is tight
It is fixed in target location；Remove auxiliary member.
Further, before lifting part combination step, further include the steps that the installation foundation for checking target position.
It further, further include judging whether hoisting weight meets the step of safety requirements before lifting part combination step
Suddenly.Judge that the step of whether hoisting weight meets safety requirements includes: the gross weight for calculating each lifting part, Sling Rope and auxiliary member
Amount, the result that total weight is obtained multiplied by safety coefficient is compared with the safe hoisting weight of overhead trolley, if result is less than safety
Hoisting weight then meets safety requirements.
Further, lifting part combination step includes: the lifting part of dispersion to be arranged in the two sides of overhead trolley, and make to hang
Relative position between piece installing meets the technical requirements in fastening steps.
Optionally, lifting part combination step is including: ensuring that the center of gravity of lifting sub-assembly is located at the underface of overhead trolley.
Further, before lifting, one is bound respectively in the quadrangle of lifting sub-assembly and is swung for correcting in hoisting process
The Sling Rope of offset.
Optionally, target location is provided with buffer board, and sub-assembly dropping place is lifted when lifting in place on buffer board.
Further, before fastening steps, further include the steps that precision adjusts: by the position of the lifting sub-assembly after dropping place
Precision carries out integrated regulation.
Preferably, two structures are identical or symmetrical lifting part utilizes combination fashioned iron in the step of lifting part combines
Welding is combined into lifting sub-assembly.
The present invention using overhead trolley by being hung after being connected the lifting part of dispersion using auxiliary member and forming sub-assembly
Dress, finally removes the auxiliary member that group shares again, and this mode does not need to add suspension centre, does not also need to increase bottle gouard moved by hands.And this
The mode once lifted after kind combination, reduces precision adjustment difficulty after lifting.The method improves working efficiency, reduces labour
Intensity has saved cost, shortens construction period.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
Below with reference to accompanying drawings, the present invention is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of overhead trolley combined hanging method of the invention；
Fig. 2 is the structural schematic diagram of certain aircraft engine test stand level-one injection cylinder of the preferred embodiment of the present invention；
Fig. 3 is that certain aircraft engine test stand level-one injection cylinder of the preferred embodiment of the present invention is hung using overhead trolley combination
The structure schematic diagram of dress；
Fig. 4 is that certain aircraft engine test stand level-one injection cylinder of the preferred embodiment of the present invention is hung using overhead trolley combination
The flow chart of dress.
Drawing reference numeral explanation:
1, level-one injection cylinder；11, the first from left grade injection cylinder；12, right level-one injection cylinder；13, front port；14, rear port；2, rail
Road；3, overhead trolley；4, Sling Rope；5, group shares fashioned iron；51, prelocalization fashioned iron；52, fashioned iron is positioned afterwards；53, reinforced steel.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
It is referring to Fig.1, of the invention to provide a kind of overhead trolley combined hanging method, comprising the following steps:
Step s1, lifting part combination.It specifically includes: the lifting part of dispersion is arranged in the two sides of overhead trolley, and make to hang
Relative position between piece installing meets the technical requirements in subsequent fastening steps.Each lifting part is combined to be formed using auxiliary member and is hung
Fill sub-assembly.The center of gravity for ensuring to lift sub-assembly is located at the underface of overhead trolley.
Step s2, lifting.Lifting sub-assembly is lifted by crane using overhead trolley.
Step s3, lifting are in place.Overhead trolley will lift sub-assembly and transport to target position and dropping place, and target location is set
It is equipped with buffer board, sub-assembly dropping place is lifted when lifting in place on buffer board.
Step s4, fastening lifting sub-assembly.Lifting sub-assembly installation is anchored on target location.
Step s5 removes auxiliary member.
Referring to Figure 2 to Figure 4, the preferred embodiment of the present invention draws certain aircraft engine test stand level-one using overhead trolley
Shooting cylinder 1 is combined lifting.
Certain aircraft engine test stand includes test bay workshop and test bay process equipment.When certain test bay workshop building,
What is installed in test cell is an overhead trolley 3, and electric block is mounted on the bull headction hung under the workshop roof truss of test cell
On road 2, i-beam track 2 is mounted among workshop, so 3 operating path of overhead trolley can only front and back operation.
Exhaust system in test bay process equipment is divided into left exhaust and right exhaust.The level-one injection cylinder 1 of exhaust system is pacified
In test cell, it is stainless steel that level-one injection cylinder 1, which includes the identical the first from left grade injection cylinder 11 of structure and right level-one injection cylinder 12,
Material, the two are distributed in two sides, center absolute altitude 3000mm centered on engine mounting stand frame.In this preferred embodiment, specifically
Combined hanging method following steps:
Step s100, the preparation before lifting.
According to lifting needs, site clearing is allowed to meet lifting condition.Tool materials on deck, and carry out inspection at the scene
Checking and accepting is looked into, guarantees equipment normal use.Whether securely to check rigging, shackle, it is whether normal with electric line, equipment,
Whether various accessories provide in place.
Step s200, installation foundation inspection.
Mounting base (not shown) on-station position and mounting base to the first from left grade injection cylinder 12, right level-one injection cylinder 11 are
It is no solid and reliable to be checked.
Step s300, judges whether hoisting weight meets safety requirements.Calculate left and right level-one injection cylinder 11,12, Sling Rope
4 and group share the total weight of fashioned iron 5, the safety of result and overhead trolley 3 that the total weight is obtained multiplied by safety coefficient is risen
Hoist amount compares, if being less than safe hoisting weight, meets safety requirements.The safe hoisting weight of test cell overhead trolley 3 is
The total weight of 2T, left and right level-one injection cylinder 11,12 and Sling Rope 4 is about 1400Kg, and therefore, the weight of auxiliary member is no more than
600Kg.In the present embodiment, what group shared fashioned iron 5 is significantly less weight than 600Kg, meets combined hanging requirement.
Step s400, lifting part combination.Specifically includes the following steps:
Left and right level-one injection cylinder 11,12 is respectively arranged in the two sides of overhead trolley 3, and makes left and right one by step s401
Be symmetrical arranged between grade injection cylinder 11,12, predetermined distance between the front end of left and right level-one injection cylinder 11,12 and before being formed
Port 13, predetermined distance between the rear end of left and right level-one injection cylinder 11,12 and shape rear port 14.
Step s402 processes the front port 13 of one with left and right level-one injection cylinder 11,12 according to structure shown in Fig. 3
The identical size of spacing prelocalization fashioned iron 51, the front port 13 of left and right level-one injection cylinder 11,12 is welded to connect, come
Guarantee the requirement of 13 size of front port；Equally processing a piece size identical with the spacing of rear port 14 rear positioning fashioned iron 52, by a left side,
The rear port 14 of right level-one injection cylinder 11,12 is welded to connect, to guarantee the requirement of 14 size of rear port.Left and right level-one at this time
Injection cylinder 11,12 is combined into an entirety, approximate quadrangle.
In this preferred embodiment, since left and right level-one injection cylinder 11,12 includes bending segment and straightway, the front end of the two
Between standoff distance be variation, therefore welded at front port 13 the prelocalization fashioned iron 51 of two different lengths.Similarly,
One and 14 spacing dimension phase of rear port have also been welded with straightway intersection in the bending segment of left and right level-one injection cylinder 11,12
Same rear positioning fashioned iron 52.
Step s403 checks the Diagonal Dimension of quadrangle, is adapted to pair by adjusting left and right level-one injection cylinder 11,12
Diagonal dimension is consistent, and left and right level-one injection cylinder 11,12 has reached the pitch requirements in subsequent fastening steps at this time.
Step s404 is welded using reinforced steel 53 and left and right level-one injection cylinder 11,12, it is ensured that whole after combination is integral
Body lifting has enough intensity.Similarly, in this preferred embodiment, two are welded between left and right level-one injection cylinder 11,12
Reinforced steel 53, two reinforced steels 53 are located at by positioning the straight of fashioned iron 52 and left and right level-one injection cylinder 11,12 after two
On the diagonal line of the quadrangle of line segment composition.
After said combination step is completed on ground, and the combination of left and right level-one injection cylinder 11,12 is integral, center of gravity will it is left,
On the line of symmetry of right level-one injection cylinder 11,12, that is, in the underface of overhead trolley 3.It will be possible to use the list of workshop at this time
Rail crane 3 steadily lifts by crane.After the left and right combination of level-one injection cylinder 11,12 is integral, the installation in place after lifting will be greatly shortened
The difficulty and adjustment time of precision adjustment.
Step s500, lifting.
It finds the suspension centre of lifting sub-assembly accurately, guarantees that lifting sub-assembly is steady when lifting, and each hoisting point position uniform force.It hangs
After point is found accurately, fixed Sling Rope 4 keeps it not mobile relative to lifting sub-assembly.In the present embodiment, since lifting centre-height is
3000mm, therefore bind a Sling Rope 4 respectively in the quadrangle of lifting sub-assembly quadrangle and be used to correct the swing in hoisting process
Offset.Steadily slowly rise when lifting, and steadily at the uniform velocity advances.
Step s600, lifting are in place.
By left and right level-one injection cylinder 11,12 and group share fashioned iron 5 combine the lifting sub-assembly formed transport and dropping place in
In mounting base, buffered when falling into mounting base with fluoroplastic plate.
Step s700, precision adjustment.
Since left and right level-one injection cylinder 11,12 is combined hanging, it ensure that left and right level-one is drawn when ground is combined
The relative position of shooting cylinder 11,12 ensure that the center spacing of left and right level-one injection cylinder 11,12.It is hung therefore it may only be necessary to adjust
The centre symmetry line of sub-assembly is filled at workshop center.It is still adjusted using entire combination in this step, left and right level-one is drawn
Shooting cylinder 11,12 accurate adjustments to desired size.The difficulty and adjustment time of adjustment are greatly reduced by combining adjustment.
Step s800, fastening lifting sub-assembly: will reach after adjustment the left and right level-one injection cylinder 11,12 of required precision into
Row installation is anchored on mounting base.
Step s900 removes auxiliary member: group being shared fashioned iron 5 from left and right level-one injection cylinder 11,12 and is removed.
Above-described embodiment only provides the hanging method of left and right 11,12 two lifting parts of level-one injection cylinder, in other embodiments
In, more than two lifting parts can also be combined with lifting, or be combined and hang to more than two symmetrical lifting parts
Dress, the present invention is not limited thereto.
The present invention is solved by the above overhead trolley combined hanging method to be distributed in the components of 3 two sides of overhead trolley and hangs
Problem is filled, in aircraft engine test stand process of construction with good.Combined hanging method of the invention does not need to add suspension centre,
It does not need to increase bottle gouard moved by hands yet；It is once lifted after combination, greatly reduces the difficulty of precision adjustment after lifting, also improve
Working efficiency reduces labor intensity, has saved cost, shortened construction period；With extensive application value.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of overhead trolley combined hanging method, which comprises the following steps:
Lifting part combination: fashioned iron (5) is shared by the first from left grade injection cylinder (11) of dispersion and right level-one injection cylinder (12) group using group
It closes and forms lifting sub-assembly；The lifting part combination step includes:
The first from left grade injection cylinder (11) of dispersion and right level-one injection cylinder (12) are respectively arranged in the two sides of overhead trolley, and
Make to be symmetrical arranged between the first from left grade injection cylinder (11) and right level-one injection cylinder (12), makes the first from left grade injection cylinder (11) and the right side one
Relative position between grade injection cylinder (12) meets the technical requirements in subsequent fastening steps, the first from left grade injection cylinder (11) and the right side one
Grade injection cylinder (12) front end between predetermined distance and form predetermined distance between front port (13), rear end and after shape
Port (14)；
The prelocalization fashioned iron (51) for processing a size identical as the spacing of front port (13), by the first from left grade injection cylinder (11) and the right side
The front port (13) of level-one injection cylinder (12) is welded to connect；After processing a size identical as the spacing of rear port (14)
It positions fashioned iron (52), the rear port (14) of the first from left grade injection cylinder (11) and right level-one injection cylinder (12) is welded to connect；Make
It obtains the first from left grade injection cylinder (11) and right level-one injection cylinder (12) is combined into an entirety；
After said combination step is completed on ground, and the first from left grade injection cylinder (11) and the combination of right level-one injection cylinder (12) are integral,
Center of gravity is on the first from left grade injection cylinder (11) and the line of symmetry of right level-one injection cylinder (12), that is, in the underface of overhead trolley；
Lifting: the lifting sub-assembly is lifted by crane using overhead trolley；
Lifting is in place: the overhead trolley transports the lifting sub-assembly to target position and dropping place；
It fastens the lifting sub-assembly: lifting sub-assembly installation is anchored on the target location；
It removes described group and shares fashioned iron (5).
2. overhead trolley combined hanging method according to claim 1, which is characterized in that in the lifting part combination step
Before, further include the steps that the installation foundation for checking the target position.
3. overhead trolley combined hanging method according to claim 1, which is characterized in that in the lifting part combination step
Before, further include the steps that judging whether hoisting weight meets safety requirements.
4. overhead trolley combined hanging method according to claim 3, which is characterized in that described whether to judge hoisting weight
The step of meeting safety requirements include: calculate the first from left grade injection cylinder (11) and right level-one injection cylinder (12), Sling Rope and
The described group of total weight for sharing fashioned iron (5), the result that the total weight is obtained multiplied by safety coefficient and the overhead trolley
Safe hoisting weight compares, if the result is less than the safe hoisting weight, meets safety requirements.
5. overhead trolley combined hanging method according to claim 1, which is characterized in that before lifting, in the lifting group
The quadrangle of component binds one for correcting the Sling Rope of wobble deviation in hoisting process respectively.
6. overhead trolley combined hanging method according to claim 1, which is characterized in that the target location is provided with
Buffer board, the lifting sub-assembly dropping place is on the buffer board when lifting in place.
7. overhead trolley combined hanging method according to claim 1, which is characterized in that before the fastening steps, also
Include the steps that precision adjusts: the position precision of the lifting sub-assembly after dropping place is subjected to integrated regulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710407233.7A CN107188039B (en) | 2017-06-02 | 2017-06-02 | Overhead trolley combined hanging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710407233.7A CN107188039B (en) | 2017-06-02 | 2017-06-02 | Overhead trolley combined hanging method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107188039A CN107188039A (en) | 2017-09-22 |
| CN107188039B true CN107188039B (en) | 2019-02-19 |
Family
ID=59877003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710407233.7A Active CN107188039B (en) | 2017-06-02 | 2017-06-02 | Overhead trolley combined hanging method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107188039B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112196278B (en) * | 2020-09-16 | 2022-01-25 | 飞帆集团有限公司 | Special-shaped streamer and mounting method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102086000A (en) * | 2009-12-08 | 2011-06-08 | 中冶成工上海五冶建设有限公司 | Onsite splicing and mounting method for extra-large and overweight box crane girders |
| CN102134833A (en) * | 2011-02-21 | 2011-07-27 | 中国一冶集团有限公司 | Construction method for hoisting and disassembling bailey truss |
| CN102184747A (en) * | 2011-03-18 | 2011-09-14 | 山东核电设备制造有限公司 | Modular steel containment vessel annular hanging beam and assembling method thereof |
| CN102505860A (en) * | 2011-10-21 | 2012-06-20 | 温州建设集团有限公司 | Novel Lifting method for irregularly-shaped steel structure member |
| CN103410333A (en) * | 2013-08-16 | 2013-11-27 | 中国建筑第八工程局有限公司 | Construction method of special-shaped irregular steel structure |
| CN106395628A (en) * | 2015-11-30 | 2017-02-15 | 中国化学工程第三建设有限公司 | Hoisting and overhead-assembling method for sections of heavy tower equipment |
-
2017
- 2017-06-02 CN CN201710407233.7A patent/CN107188039B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102086000A (en) * | 2009-12-08 | 2011-06-08 | 中冶成工上海五冶建设有限公司 | Onsite splicing and mounting method for extra-large and overweight box crane girders |
| CN102134833A (en) * | 2011-02-21 | 2011-07-27 | 中国一冶集团有限公司 | Construction method for hoisting and disassembling bailey truss |
| CN102184747A (en) * | 2011-03-18 | 2011-09-14 | 山东核电设备制造有限公司 | Modular steel containment vessel annular hanging beam and assembling method thereof |
| CN102505860A (en) * | 2011-10-21 | 2012-06-20 | 温州建设集团有限公司 | Novel Lifting method for irregularly-shaped steel structure member |
| CN103410333A (en) * | 2013-08-16 | 2013-11-27 | 中国建筑第八工程局有限公司 | Construction method of special-shaped irregular steel structure |
| CN106395628A (en) * | 2015-11-30 | 2017-02-15 | 中国化学工程第三建设有限公司 | Hoisting and overhead-assembling method for sections of heavy tower equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107188039A (en) | 2017-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110259145A (en) | A kind of arch tubular truss rapid constructing method | |
| CN103883129B (en) | A kind of steel structural roof beam installation method | |
| CN109483128B (en) | Bullet train head vehicle car body pairing device and its group are to method | |
| CN108116973A (en) | A kind of adjustable self-balancing hanging apparatus | |
| CN106592432B (en) | A kind of prefabricated bent cap shell segmentation construction method of installation of huge thin-walled | |
| CN105421792A (en) | Lifting construction process of modular steel structural components | |
| CN207811049U (en) | A kind of adjustable self-balancing hanging apparatus | |
| CN107188039B (en) | Overhead trolley combined hanging method | |
| KR20100086469A (en) | Gantry device for use in the assembly or maintenance of heavy parts of a travelling device | |
| CN108842954A (en) | A kind of huge different section Honeycomb Beam structural system construction method of installation of aerofoil profile roofing | |
| CN113666284B (en) | Hydraulic lifting construction method for outdoor truss steel structure | |
| JP6473922B2 (en) | Lifting balance | |
| CN106812216B (en) | A kind of mast-Cable forces system integral installation method | |
| CN110886218B (en) | Main cable profile steel anchoring system of large-span suspension bridge and construction method | |
| CN103743581B (en) | Internal-climbing tower crane test platform device and test method | |
| JP2016529424A (en) | scaffold | |
| CN107687132B (en) | The method that equidistant double width bridge uses Segmental assembling bridge-erecting machine synchronous construction | |
| CN107893377B (en) | The on-site consolidation method of Cable-stayed Bridges loop wheel machine bottom basket system | |
| CN210002233U (en) | Hoisting system suitable for suspension bridge steel structure bridge deck system | |
| CN108221697A (en) | A kind of entirety steel arch bridge bridge floor panel grider construction method for hanging | |
| CN114525846B (en) | Mounting method of unequal-elevation steel truss structure | |
| CN108978479A (en) | A kind of self-balancing rack system and its construction method | |
| CN115305835A (en) | Construction method for erecting double-section whole-section steel truss girder by using girder erection crane | |
| CN103556574B (en) | The using method of fast hoisting steel girder member bar | |
| CN113832864A (en) | Lifting closure construction method for arch rib of steel box arch bridge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |