CN209338005U - A kind of mobile height leg gantry crane of erecting beam construction - Google Patents
A kind of mobile height leg gantry crane of erecting beam construction Download PDFInfo
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- CN209338005U CN209338005U CN201821773362.4U CN201821773362U CN209338005U CN 209338005 U CN209338005 U CN 209338005U CN 201821773362 U CN201821773362 U CN 201821773362U CN 209338005 U CN209338005 U CN 209338005U
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Abstract
The utility model is directed to the deficiency of traditional erecting beam construction process, it is proposed a kind of mobile height leg gantry crane of erecting beam construction, girder including high supporting leg, low supporting leg and both ends by transverse distribution erection on high supporting leg and low supporting leg, girder is equipped with overhead traveling crane walking system, overhead traveling crane walking system is equipped with hoisting mechanism, and the bottom of high supporting leg and low supporting leg is correspondingly provided with supporting leg walking system.The gantry crane structure is simple, stress is clear, hoisting depth is high, light weight, hoist amount are big and assembled convenient disassembly；Efficiently solve deficiency of traditional erecting beam construction technology in bridge erection construction.It sets a roof beam in place using the gantry crane bale handle technology, labour can be saved, space utilization rate is improved, can be carried out parallel operations, accelerate construction progress, be substantially reduced frame fortune beam cost, improve bridge construction economic benefit.
Description
Technical field
The utility model belongs to hanging device field, and in particular to a kind of mobile height leg gantry crane of erecting beam construction.
Background technique
In the construction of traditional erection of precast beams, be self-possessed according to span of bridge and beam body, and fully consider bridge present position and
Landform, the difference of geological condition, erection of precast beams installation mostly use crane, Bridge Erector or the construction of across pier gantry.Crane is applied
Work is flexible, can install any precast beam across any position at any time, can be reduced the resting period of precast beam, accelerates precast beam and applies
Work progress, but crane erection tonnage is little, especially has limitation on bridge height, and have to landform, geology under bridge
Certain requirement；Generally from Bridgehead by Blastig, foreleg props up on bent cap Bridge Erector, since first across (or last across) by
Across setting a roof beam in place, bridge height is not required, but must can only be installed piecewise by cross in sequence from Bridgehead by Blastig, for
The bridge of unequal span must also carry out in sequence in prefabrication of beam；Across pier gantry crane can install any part at any time
Beam, but it is high to site requirements under bridge, and must be self-possessed according to bridge deck width, bridge pier height, beam body, select corresponding span, raising
Across the pier gantry crane of height and elevating capacity.However landform, geological condition difference is big at each engineering bridge location and bridge width, height
Degree is also different, cannot fully meet construction requirement using traditional erecting beam construction method.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of mobile height leg gantry crane of erecting beam construction, with
The existing deficiency of existing erection of precast beams construction is solved, construction efficiency is improved, reduces construction cost.
In order to achieve the above objectives, the utility model provides the following technical solutions:
A kind of mobile height leg gantry crane of erecting beam construction, including high supporting leg, low supporting leg and both ends are by laterally dividing
Girder with erection on high supporting leg and low supporting leg, girder are equipped with overhead traveling crane walking system, and overhead traveling crane walking system is equipped with and mentions
Mechanism is risen, the bottom of high supporting leg and low supporting leg is correspondingly provided with supporting leg walking system；
Wherein, high supporting leg is frame structure；Overhead traveling crane walking system is mainly by the main orbit being arranged on girder and walking
Motor driven trolley composition on main orbit；Hoisting mechanism is arranged on motor driven trolley；
Supporting leg walking system is mainly made of gantry supporting leg bottom beam, gantry supporting leg travelling wheel and gantry rail；Two groups of dragons
Door supporting leg bottom beam is correspondingly arranged at high supporting leg and low supporting leg bottom, and gantry supporting leg traveling is equipped on each gantry supporting leg bottom beam
Wheel, gantry supporting leg travelling wheel are connected with driving mechanism and are driven by driving mechanism；
It is equipped with high supporting leg basis positioned at the ground of bridge side, one group of gantry rail is arranged at the top of high supporting leg basis,
High supporting leg bottom is bolted by ring flange and gantry supporting leg bottom beam；
Bridge floor precast beam top plate is equipped with pre-embedded steel slab, and another group of gantry rail is arranged at the top of pre-embedded steel slab, low supporting leg
Bottom is bolted by ring flange and gantry supporting leg bottom beam；High supporting leg is corresponding with gantry supporting leg travelling wheel of low supporting leg bottom to be set
It sets on two gantry rails and can walk along gantry rail.
Further, high supporting leg is mainly made of the main steel pipe of high supporting leg, epipodite steel pipe and high supporting leg connecting rod, high supporting leg master
Steel pipe has two and is arranged to up-small and down-big trapezium structure by several high supporting leg connecting rod, on the two high main steel pipes of supporting leg
It is connected with epipodite steel pipe, the high main steel pipe of supporting leg is arranged to inverted triangle structure by several high supporting leg connecting rod with epipodite steel pipe；
Low supporting leg is mainly made of the main steel pipe of low supporting leg and low leg connecting rod, and two low main steel pipes of supporting leg pass through several
Low leg connecting rod is arranged to up-small and down-big trapezium structure；
Transverse distribution beam is mainly made of distribution beam ontology and upper flange, lower flange；The main steel pipe of high supporting leg, epipodite steel pipe
And the top end of the low main steel pipe of supporting leg is equipped with distribution beam ontology and three distribution beam ontologies pass through lower flange and each section phase
Connection, main beam supporting are connected on three distribution beam ontologies and through upper flange with distribution beam ontology.
Further, the main steel pipe of high supporting leg and the main steel pipe of low supporting leg are equipped with ladder.
Further, hoisting mechanism is mainly made of hoist engine, pulley blocks and suspender；Hoist engine setting is small in motor driven
Che Shang, pulley blocks are lifted below hoist engine, and suspender is arranged in pulley blocks bottom.
It further, further include limiter in overhead traveling crane walking system, limiter is arranged on main orbit.
Further, girder is steel truss, using double English truss formula structure.
The utility model has the beneficial effects that:
(1) the gantry crane structure is simple, stress is clear, hoisting depth is high, light weight, hoist amount are big and assembled disassembly side
Just.Efficiently solve deficiency of traditional erecting beam construction technology in bridge erection construction.
(2) for the gantry crane using steel pipe and fashioned iron as basic framework, it is convenient, fast, it can be achieved that batch production is processed that the processing is simple
Production.
(3) gantry crane overcomes the defect of the prior art, meets node items mechanical property, and realize the assembly of structure
Change, improve the assembled speed of component, sufficiently adapts to the requirement and feature of steel structure system.
(4) gantry crane partial component can be welded in factory process and be completed, and later period assembled in situ is only needed using pin shaft and spiral shell
It tethers and connects without on-the-spot welding job requirements, and bolt arrangement is easy to worker operation, substantially increases assembling speed and quality.
(5) Rewelding, dismounting damage steel pipe be can avoid, guarantee that steel pipe is safe and reliable, increase its service life, and can save
About artificial, economic benefit is obvious.
(6) it sets a roof beam in place using the height leg gantry crane bale handle technology, labour can be saved, improve space utilization rate, energy
It carries out parallel operations, accelerate construction progress, be substantially reduced frame fortune beam cost, improve bridge construction economic benefit.
(7) gantry crane can be vertically moved along gantry rail, and the precast beam for being adapted to different length is promoted.
(8) gantry crane uses high-strength bolt and pin shaft to carry out assembled in situ completely, avoids ring caused by welded steel
Border pollution can efficiently be recycled when gantry crane component is removed, really realize environmentally protective theory, be a kind of
The structural system of green.
Detailed description of the invention
In order to keep the purpose of this utility model, technical scheme and beneficial effects clearer, the utility model provides as follows
Attached drawing is illustrated:
Fig. 1 is the positive schematic view of facade structure of the utility model；
Fig. 2 is high supporting leg side elevation structural schematic diagram；
Fig. 3 is low supporting leg side elevation structural schematic diagram；
Fig. 4 be transverse distribution beam positive schematic view of facade structure (along bridge to)；
Fig. 5 is the top view of Fig. 4；
Fig. 6 is the left view of Fig. 4.
Specific embodiment
Below in conjunction with attached drawing, the preferred embodiment of the utility model is described in detail.
Using stone block up grand bridge as example introduction: stone block up grand bridge is located in Longnan mountainous area, which lays along Ming River, ground
Height difference rises and falls greatly, and narrow space near bridge location, difficulty of construction is big；Precasting yard is located at bridge side river valley valley, with floor elevation height difference
Up to 20m, and the bridge starting point connects with horse tunnel exit is changed, and terminal connects the military high speed 19 in Weihe and marks two river mouth grade separation grand bridges, and fortune beam is just
Road can not be built.
To solve the problems, such as that precast beam can not be with gun carriage fortune Liang Shangqiao, the height leg gantry crane that project uses, as shown,
High supporting leg 1 and the girder 3 on low supporting leg 2 are erected at by transverse distribution beam 4 including high supporting leg 1, low supporting leg 2 and both ends, it is main
Beam 3 is equipped with overhead traveling crane walking system 5, and overhead traveling crane walking system 5 is equipped with hoisting mechanism 6, the bottom pair of high supporting leg 1 and low supporting leg 2
Supporting leg walking system 7 should be equipped with.
Wherein, high supporting leg 1 is frame structure, is mainly connected by the main steel pipe 1a of high supporting leg, epipodite steel pipe 1b and high supporting leg
Bar 1c composition, the high main steel pipe 1a of supporting leg have two and are arranged to up-small and down-big trapezoidal knot by supporting leg connecting rod 1c several high
Structure is connected with epipodite steel pipe 1b, the high main steel pipe 1a of supporting leg and epipodite steel pipe 1b on the two high main steel pipe 1a of supporting leg and passes through several height
Supporting leg connecting rod 1c is arranged to inverted triangle structure.High supporting leg herein includes the main steel pipe of two high supporting leg and two epipodite steel pipes,
The two high main steel pipe of supporting leg and two epipodite steel pipes are along bridge, to being in splayed, direction across bridge is in up-side down triangle；Due to high supporting leg
Slenderness ratio is larger, therefore high supporting leg connecting rod is arranged between major and minor steel pipe, to increase the Stability and dependability of structure, high branch
It is connected between leg connecting rod and major and minor steel pipe and major and minor steel pipe using pin shaft.
Low supporting leg 2 is mainly made of the main steel pipe 2a of low supporting leg and low leg connecting rod 2b, and two low main steel pipe 2a of supporting leg are logical
It crosses several low leg connecting rod 2b and is arranged to up-small and down-big trapezium structure.The main steel pipe 2a of the low supporting leg of two herein is connect with low leg
It is connected between bar 2b by pin shaft.
Transverse distribution beam 4 is mainly made of distribution beam ontology 4a and upper flange 4c, lower flange 4b；The high main steel pipe of supporting leg
The top end of 1a, epipodite steel pipe 1b and the main steel pipe 2a of low supporting leg are equipped with distribution beam ontology 4a and three distribution beam ontology 4a are logical
It crosses lower flange 4b to be connected with each section, girder 3 is erected on three distribution beam ontology 4a and by upper flange 4c and distribution beam
Ontology is connected.Distribution beam ontology 4a is bolted by bottom lower flange 4b and high supporting leg, low supporting leg, and top passes through upper flange 4c
It is bolted with girder 3.
Overhead traveling crane walking system 5 is mainly by being arranged in the main orbit 5b above 3 top boom of girder and walking in main orbit 5b
On motor driven trolley 5a composition, main orbit 5b be equipped with limiter 5c, motor driven trolley 5a walking use cycloidal-pin wheel
Formula retarder.Girder 3 herein is steel truss, using double English truss formula structure.
Hoisting mechanism 6 is arranged on motor driven trolley 5a.Hoisting mechanism 6 mainly by hoist engine 6a, pulley blocks 6b and
Suspender 6c composition；Hoist engine in hoisting mechanism 6 is arranged on motor driven trolley, and pulley blocks are lifted below hoist engine, hangs
Tool setting is connected by pulley blocks 6b with suspender 6c in pulley blocks bottom, hoist engine 6a.
Supporting leg walking system 7 is mainly made of gantry supporting leg bottom beam 7a, gantry supporting leg travelling wheel 7b and gantry rail 7d；
Two groups of gantry supporting leg bottom beam 7a are correspondingly arranged at high supporting leg 1 at low 2 bottom of supporting leg, are equipped with dragon on each gantry supporting leg bottom beam 7a
Door supporting leg travelling wheel 7b, gantry supporting leg travelling wheel 7b and driving mechanism 7c (driving trolley or motor etc.) are connected and by driving mechanism
7c driving.
It is equipped with high supporting leg basis 8 positioned at the ground of bridge side, high supporting leg basis 8 uses concrete Extended chemotherapy, top
Portion's pre-embedded steel slab, at basic 8 tops of high supporting leg, high 1 bottom of supporting leg passes through ring flange and gantry for one group of gantry rail 7d setting
Supporting leg bottom beam 7a is bolted.Bridge floor precast beam top plate is equipped with pre-embedded steel slab 9, and another group of gantry rail 7d is arranged in pre-buried steel
9 top of plate, low 2 bottom of supporting leg is bolted by ring flange and gantry supporting leg bottom beam 7a.High supporting leg 1 and low 2 bottom of supporting leg
Gantry supporting leg travelling wheel is correspondingly arranged on two gantry rails and can walk along gantry rail.
As a further improvement of the foregoing solution, the main steel pipe 1a of the high supporting leg and main steel pipe 2a of low supporting leg is equipped with ladder 10,
Worker is facilitated to overhaul gantry crane.
The construction method of the gantry crane are as follows:
1) height leg gantry crane designs: determining height leg gantry crane size, structure according to bridge height, width and load
Part section and high-strength bolt model and quantity consider that height leg gantry crane bears dead load, precast beam self weight and wind load.
2) height leg gantry crane component is processed: to improve cutting stock precision, steel pipe, fashioned iron and flange are cut using cutting machine,
Flange will be accurately positioned when punching.
3) height leg gantry crane preassembling: to guarantee gantry crane quality, ensuring that component is smoothly installed at the scene, height leg dragon
Gantry crane component is after processing is completed in processing factory's preassembling, timely processing of finding the problem.
4) a few hole erection of precast beams of first section: a few hole precast beam truck cranes of first section are set up, and truck crane carries out unloaded examination afterwards in place
Operation is simulated actual condition, is rotated by actual condition operating radius, brachium, the elevation angle.It checks and hangs during simulating the Ministry of worker
Whether arm mutually conflicts with structures, has accessible, minimum clear spacing, can carry out lifting operation after confirmation is errorless.
5) height leg gantry crane assembled in situ: using two truck crane liftings, hand fits when height leg gantry crane assembly
Assembling.First the high supporting leg in gantry and low supporting leg erect are used together cable wind rope and fixed；Then girder merogenesis is hung onto and has been set up
At a few hole bridge floors of first section, carried out in bridge floor it is assembled, it is each by high supporting leg and on bridge by low supporting leg under bridge after the completion of girder is assembled
It, will be on assembled good erection of main beam to high supporting leg and low supporting leg with truck crane if a truck crane；Other small-sized structures are finally installed
Part.
6) height leg gantry crane bale handle is constructed: lifting precast beam to fortune beam from beam strorage area end by precasting yard gantry crane
Che Shang, beam car are transported below beam to height leg gantry crane by fortune beam sidewalk.Use height leg gantry crane vertical-lift precast beam
Certain altitude on to bridge floor, transverse translation precast beam put off precast beam on bridge floor beam car, complete the promotion of precast beam.
When promoting the precast beam of different length, gantry crane can be vertically moved along gantry rail to adapt to the precast beam of different length.
7) girder erection by bridging machine: precast beam is transported at Bridge Erector by bridge floor beam car, is hole-specifically set a roof beam in place using Bridge Erector, and circulation is 6)
~7) until whole bridge constructions are completed.
Finally, it is stated that preferred embodiment above is merely intended for describing the technical solutions of the present application, but not for limiting the present application, to the greatest extent
Pipe has been described in detail the utility model by above preferred embodiment, but those skilled in the art should manage
Solution, can make various changes, without departing from the utility model claims book institute to it in the form and details
The range of restriction.
Claims (1)
1. a kind of mobile height leg gantry crane of erecting beam construction, it is characterised in that: logical including high supporting leg, low supporting leg and both ends
Girder of the transverse distribution erection on high supporting leg and low supporting leg is crossed, girder is equipped with overhead traveling crane walking system, overhead traveling crane walking system
It is equipped with hoisting mechanism, the bottom of high supporting leg and low supporting leg is correspondingly provided with supporting leg walking system；
Wherein, high supporting leg is frame structure；Overhead traveling crane walking system is mainly by the main orbit that is arranged on girder and walking in master
Motor driven trolley composition on track；Hoisting mechanism is arranged on motor driven trolley；
Supporting leg walking system is mainly made of gantry supporting leg bottom beam, gantry supporting leg travelling wheel and gantry rail；Two groups of gantry branch
Leg bottom beam is correspondingly arranged at high supporting leg and low supporting leg bottom, and gantry supporting leg travelling wheel is equipped on each gantry supporting leg bottom beam, dragon
Door supporting leg travelling wheel is connected with driving mechanism and is driven by driving mechanism；
It is equipped with high supporting leg basis positioned at the ground of bridge side, one group of gantry rail setting is at the top of high supporting leg basis, high branch
Leg bottom is bolted by ring flange and gantry supporting leg bottom beam；
Bridge floor precast beam top plate is equipped with pre-embedded steel slab, and another group of gantry rail is arranged at the top of pre-embedded steel slab, low supporting leg bottom
It is bolted by ring flange and gantry supporting leg bottom beam；High supporting leg and gantry supporting leg travelling wheel of low supporting leg bottom are correspondingly arranged at
It can walk on two gantry rails and along gantry rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821773362.4U CN209338005U (en) | 2018-10-30 | 2018-10-30 | A kind of mobile height leg gantry crane of erecting beam construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821773362.4U CN209338005U (en) | 2018-10-30 | 2018-10-30 | A kind of mobile height leg gantry crane of erecting beam construction |
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| CN209338005U true CN209338005U (en) | 2019-09-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111776957A (en) * | 2020-06-30 | 2020-10-16 | 中建一局集团建设发展有限公司 | Gantry crane with height-adjustable supporting legs and construction method thereof |
| CN112125160A (en) * | 2020-08-19 | 2020-12-25 | 北京市政路桥股份有限公司 | Vertical beam lifting method for high and large fixed-point portal frame |
-
2018
- 2018-10-30 CN CN201821773362.4U patent/CN209338005U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111776957A (en) * | 2020-06-30 | 2020-10-16 | 中建一局集团建设发展有限公司 | Gantry crane with height-adjustable supporting legs and construction method thereof |
| CN112125160A (en) * | 2020-08-19 | 2020-12-25 | 北京市政路桥股份有限公司 | Vertical beam lifting method for high and large fixed-point portal frame |
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