CN206173818U - Bridge deck crane that hoist and mount range can change - Google Patents
Bridge deck crane that hoist and mount range can change Download PDFInfo
- Publication number
- CN206173818U CN206173818U CN201621231997.2U CN201621231997U CN206173818U CN 206173818 U CN206173818 U CN 206173818U CN 201621231997 U CN201621231997 U CN 201621231997U CN 206173818 U CN206173818 U CN 206173818U
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- bearing frame
- frame
- change
- crane
- suspension bracket
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Abstract
The utility model relates to a bridge deck crane that hoist and mount range can change. It includes the bearing frame, and two grudging posts in bottom horizontal frame rear end are connected with the lower extreme including two bottom horizontal frame to this bearing frame, are connected through a support frame respectively on two grudging posts with between the two bottom horizontal frame, the articulated lower extreme that becomes width of cloth gallows of two bottom horizontal frame front ends of running gear, bearing frame is connected to the bottom of bearing frame, be fixed with amplitude changing device on this bearing frame, this amplitude changing device connects the upper end that becomes width of cloth gallows, and the hoist is still connected through hoisting mechanism in the upper end that should become width of cloth gallows. The utility model provides an it is big that the fortune boom support degree of difficulty is set up in the great and more shallow region of overburden of water -level fluctuation, the requirement of the limit for height reservoir area of three gorges in, and large -scale crane barge is unable to be got into, and steel case roof beam lifts by crane the difficult problem of roof beam of depositing.
Description
Technical field
This utility model is related to the erection crane of bridge construction, and the bridge floor that particularly a kind of lifting amplitude can change hangs
Machine.
Background technology
When cable-stayed bridge end bay steel box-girder view field designs typically on land, because steel box-girder volume is larger, weight weight,
By land transport difficult is larger, therefore steel box-girder transport typically adopts water transportation, is then hung to end bay using large-scale floating crane and deposits beam
On support.
End bay deposits boom support height and typically will could slide to design position across pier top higher than auxiliary pier top, such steel box-girder
Put, therefore it is higher to deposit the height that boom support sets up, even if in the Changjiang river water-retention phase peak level, depositing that boom support top mark is high will also than water level
High about more than 45m, so require the armed lever for depositing the crane barge of beam lie prone 60 ° or so of arm when hoisting height cannot be less than 60m and
Lift heavy cannot be less than 210t, such crane barge satisfaction is there is presently no in reservoir area of Three Gorges and directly steel box-girder is deposited to rack platform
On, reservoir area of Three Gorges reaches 30m in water-retention phase and the dry season water level discrepancy in elevation, therefore more cannot realize in dry season.
Because crane barge directly cannot directly deposit steel box-girder to rack platform, needs set up low trestle in auxiliary pier opposite side
Girder feeding platform.Because the coating near river side is shallower, the steel pipe post of rack platform is supported and cannot directly squeezed into the pile monkey that shakes
Underground, or the depth squeezed into is not enough, according to the technique of drilling pile, then difficulty of construction is larger, and the time of consuming is longer.
Utility model content
The purpose of this utility model is to provide the erection crane that a kind of lifting amplitude can change, solve SEA LEVEL VARIATION compared with
Fortune boom support difficulty is set up greatly in the big and shallower region of coating, and the requirement of limit for height in reservoir area of Three Gorges, large-scale floating crane cannot be introduced into, steel
The difficult problem of beam is deposited in box beam lifting.
For achieving the above object, the technical solution of the utility model is：
The erection crane that a kind of lifting amplitude can change, it is characterised in that：It includes bearing frame, and the bearing frame includes two
Bottom level framework and lower end are connected to two stands of bottom level back-end framework, two stand upper ends and two bottom level frameworks it
Between respectively by a bracing frame connect；The bottom connection walking mechanism of bearing frame, the two bottom level frame front ends hinge of bearing frame
Connect the lower end of luffing suspension bracket；Jib lubbing mechanism is fixed with the bearing frame, the jib lubbing mechanism connects the upper end of luffing suspension bracket, the change
The upper end of width suspension bracket also connects suspender by lifting mechanism.
The erection crane that described lifting amplitude can change, it is characterised in that：The jib lubbing mechanism include coiler device and
Rope on coiler device, connects the upper end of luffing suspension bracket after the crossbearer that the rope other end bypasses between two stand upper ends.
The erection crane that described lifting amplitude can change, it is characterised in that：Two bottom level frameworks of the bearing frame
Luffing suspension bracket hinged place is provided with safety guard.
The erection crane that described lifting amplitude can change, it is characterised in that：The jib lubbing mechanism is controlled by control chamber connection
System.
By above-mentioned technical proposal, this utility model has the advantage that：
This utility model solves the problems, such as directly to be lifted without large-scale floating crane in reservoir area of Three Gorges deposits beam, while also solving shallow
Coating sets up the difficult problem of platform.Beam construction is deposited for end bay steel box-girder in reservoir area of Three Gorges provide good reference function.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is use state schematic diagram of the present utility model.
Specific embodiment
Fig. 1 is referred to, the utility model discloses the erection crane that a kind of lifting amplitude can change.As shown in the figure：It
Including bearing frame, the bearing frame includes that two bottom level frameworks 11 and lower end are connected to two stands of the rear end of bottom level framework 11
12, connected by a bracing frame 13 respectively between the upper end of two stand 12 and two bottom level frameworks 11；The bottom connection of bearing frame
Walking mechanism 2, the front end of two bottom level framework 11 of bearing frame is hinged the lower end of luffing suspension bracket 3；It is fixed with the bearing frame
Jib lubbing mechanism 4, the upper end of the connection luffing of jib lubbing mechanism 4 suspension bracket 3, the upper end of the luffing suspension bracket 3 is also connected by lifting mechanism 5
Suspender 6.
In this utility model, the walking mechanism 2 includes two closed slides and is arranged on the walking mechanism of the bottom of bearing frame
（Such as：Roller, pulley etc.）.
In this utility model, the jib lubbing mechanism 4 include coiler device and coiler device on rope, the rope other end around
Connect the upper end of luffing suspension bracket 3 after the crossbearer 14 crossed between the upper end of two stand 12.When using, erection crane jib lubbing mechanism 4 is by two
Platform passes through a rope（Such as：Steel wire rope）The coiler device being connected in parallel（Such as：Hoist engine）Synchronization Control loop wheel machine luffing suspension bracket 3
Lifting amplitude.
In this utility model, two bottom level frameworks 11 of the bearing frame are provided with safe guarantor with the hinged place of luffing suspension bracket 3
Protection unit 8, for guaranteeing safety when luffing is lifted.
In this utility model, the jib lubbing mechanism 4 connects control by control chamber 7.
Using method of the present utility model is as follows：
Step one：Crane barge is hung to steel box-girder on fortune beam dolly；
Step 2：The underface that fortune beam dolly passes through elevator machine travel to amplitude variation type erection crane suspender.
Step 3：As shown in Figure 2：Steel box-girder is sling using this utility model erection crane, is hung to be higher by and is deposited boom support
After certain altitude, steel box-girder is hung to by the lifting amplitude of regulation erection crane is deposited on boom support platform, then by steel box-girder
Slide onto design attitude.
It is only in sum preferred embodiment of the present utility model, not for limiting enforcement model of the present utility model
Enclose.The equivalence changes that i.e. all contents according to this utility model claim are made and modification, all should be of the present utility model
Technology category.
Claims (4)
1. the erection crane that a kind of lifting amplitude can change, it is characterised in that：It includes bearing frame, and the bearing frame includes two bottoms
Portion's horizontal frame（11）Bottom level framework is connected to lower end（11）Two stands of rear end（12）, two stands（12）Upper end and two
Bottom level framework（11）Between respectively pass through a bracing frame（13）Connection；The bottom connection walking mechanism of bearing frame（2）, load-bearing
Two bottom level frameworks of frame（11）Front end is hinged luffing suspension bracket（3）Lower end；Jib lubbing mechanism is fixed with the bearing frame
（4）, the jib lubbing mechanism（4）Connection luffing suspension bracket（3）Upper end, the luffing suspension bracket（3）Upper end also pass through lifting mechanism（5）Even
Connect suspender（6）.
2. the erection crane that lifting amplitude according to claim 1 can change, it is characterised in that：The jib lubbing mechanism（4）
Including the rope on coiler device and coiler device, the rope other end bypasses two stands（12）Crossbearer between upper end（14）Afterwards
Connection luffing suspension bracket（3）Upper end.
3. the erection crane that lifting amplitude according to claim 1 and 2 can change, it is characterised in that：The bearing frame
Two bottom level frameworks（11）With luffing suspension bracket（3）Hinged place is provided with safety guard（8）.
4. the erection crane that lifting amplitude according to claim 1 and 2 can change, it is characterised in that：The jib lubbing mechanism
（4）By control chamber（7）Connection control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621231997.2U CN206173818U (en) | 2016-11-17 | 2016-11-17 | Bridge deck crane that hoist and mount range can change |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621231997.2U CN206173818U (en) | 2016-11-17 | 2016-11-17 | Bridge deck crane that hoist and mount range can change |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206173818U true CN206173818U (en) | 2017-05-17 |
Family
ID=58685240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621231997.2U Active CN206173818U (en) | 2016-11-17 | 2016-11-17 | Bridge deck crane that hoist and mount range can change |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206173818U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111172882A (en) * | 2020-01-13 | 2020-05-19 | 中铁二院工程集团有限责任公司 | Beam section transportation method for assembling bridge girder cantilever |
| CN112112074A (en) * | 2020-08-18 | 2020-12-22 | 中铁九局集团第四工程有限公司 | Method for sectional construction of unsupported large-span hyperbolic span urban viaduct steel box girder |
-
2016
- 2016-11-17 CN CN201621231997.2U patent/CN206173818U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111172882A (en) * | 2020-01-13 | 2020-05-19 | 中铁二院工程集团有限责任公司 | Beam section transportation method for assembling bridge girder cantilever |
| CN112112074A (en) * | 2020-08-18 | 2020-12-22 | 中铁九局集团第四工程有限公司 | Method for sectional construction of unsupported large-span hyperbolic span urban viaduct steel box girder |
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| GR01 | Patent grant |