CN106758864A - A kind of cantilever beam hoisting mechanism used during nose girder via under mobile formwork - Google Patents
A kind of cantilever beam hoisting mechanism used during nose girder via under mobile formwork Download PDFInfo
- Publication number
- CN106758864A CN106758864A CN201611145702.4A CN201611145702A CN106758864A CN 106758864 A CN106758864 A CN 106758864A CN 201611145702 A CN201611145702 A CN 201611145702A CN 106758864 A CN106758864 A CN 106758864A
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- China
- Prior art keywords
- nose girder
- girder
- shoulder pole
- column
- driving frame
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/06—Methods or apparatus specially adapted for erecting or assembling bridges by translational movement of the bridge or bridge sections
Abstract
The invention discloses the cantilever beam hoisting mechanism used during nose girder via under a kind of mobile formwork, by above cantilever beam orbit, walking dolly is set, and the bottom of two interlocking hoist cylinders is arranged on driving frame, the top of oil cylinder is connected to shoulder pole soffit, the jacking system of composition can realize lower nose girder rise and fall displacement precision controlling and stress equalization control, and the column on the upside of shoulder pole girder and driving frame is constituted into guide and limit mechanism by cotter way form, the elevating safety control of lower nose girder can be realized；Nose girder is fallen using screw-thread steel suspension rod liter, by increasing capacitance it is possible to increase the rigidity of system, reduce the up-down vibration and circuit oscillation of lower nose girder；Do not departed from all the time using the anti-upper cover plate edge of a wing for grabbing lower nose girder of spreader beam, and spreader beam to change hoisting point position, can solve the security and convenience needs of problems of frequent mobile suspension centre in lower nose girder via operating mode by slide anteroposterior on lower nose girder.
Description
Technical field
The present invention relates to make during nose girder via under construction of railways technical field of auxiliary equipment, more particularly to a kind of mobile formwork
Cantilever beam hoisting mechanism.
Background technology
Mobile formwork is the construction equipment that hole-specifically cast-in-site is carried out to beams of concrete, including main frame and lower nose girder etc.
Part, can once complete pouring for a bridge body concrete, and can be vertically moved along bridge axle line, mobile formwork main frame weight 400
Remaining ton, the lower ton of nose girder weight more than 50.
Lower nose girder via operation is one of more crucial operation of Construction Through Form on Traveler process, and common structure is mobile formwork
Moving cart above cantilever beam is provided with hoisting mechanism, using the lower nose girder anchor point of steel wire rope lifting.But due to lower nose girder via
When its front leg strut depart from bridge pier displacement（Lift by crane distance）It is not long, risen and fallen according to steel wire rope hoisting mechanism and be also easy to produce down
Nose girder up-down vibration and circuit oscillation, and the lifting anchor point of lower nose girder is changeable and need artificial assistance, and danger increases.Therefore set
A kind of Special hoisting mechanism that can be moved on a cantilever beam is counted out, is this area urgent problem.
The content of the invention
The technical problems to be solved by the invention are to provide the hoisting mechanism used during nose girder via under a kind of mobile formwork,
Not only realize the function of auxiliary lower nose girder raising certain altitude, and the nose girder via in the case where handling is realized under other structures are assisted
Function, and there is automatic equalization stress in lower nose girder raising, via, the functions such as up-down vibration and circuit oscillation are reduced, from
And improve the security of lower nose girder via.
In order to solve the above technical problems, the technical solution used in the present invention is：Under a kind of mobile formwork during nose girder via
The cantilever beam hoisting mechanism for using, including shoulder pole girder, suspension rod, column, hoist cylinder, driving frame, wheel and spreader beam, it is described flat
Spreader beam is horizontal box shape steel structure, and its lateral center is provided with a bearing pin through crossbeam, and the vertical chute with column is constituted
Position-limit mechanism with lifting guide and limit function, the column is vertically arranged double-arm steel construction, and column lower end is installed
In the center of driving frame, vertical chute is opened up per edge-on arm middle and upper part in column, the bearing pin level in the middle part of shoulder pole girder is located in
In vertical chute, the driving frame is H-shaped box shape steel structure, and four wheels are symmetrically installed in its both sides, and the wheel is stepped on for U-shaped
The steel wheel in face, its U-shaped tread profile matches with the track on cantilever top surface of the beam, and shoulder pole girder is respectively arranged at two ends with for installing
The vertical through hole of suspension rod, the suspension rod is a fining twisted steel, and the supporting installation anchorage in fining twisted steel top and bottom rises
Drop oil cylinder is mounted vertically between driving frame and shoulder pole girder.
The hoist cylinder sets two sets, and two sets of hoist cylinders are located at column both sides respectively, and hoist cylinder lower end passes through method
Blue disk is connected with driving frame, and hoist cylinder is connected by ring flange with shoulder pole soffit, and the spreader beam is π word box steel knots
Structure, its top is a crossbeam, and two ends are provided with the vertical perforation through crossbeam for installing suspension rod, are provided with its underpart
Two symmetrical L-type handgrips, handgrip upside is provided with the horizontal steel plate at certain angle of inclination, for the anti-wing for grabbing lower nose girder upper cover plate
Edge.
It is using the beneficial effect produced by above-mentioned technical proposal：By setting two sets of interlocking liftings above driving frame
Oil cylinder, two sets of hoist cylinders are connected to the position of shoulder pole soffit both sides, and the jacking system of composition can realize that lower nose girder rises and falls
Precision controlling and the stress equalization control of displacement, and the guide and limit machine that shoulder pole girder is made up of with column cotter way form
Structure, can realize the elevating safety control of lower nose girder；Using screw-thread steel suspension rod substitute steel wire rope, by increasing capacitance it is possible to increase jacking system it is firm
Degree, reduces up-down vibration and circuit oscillation；All the time do not depart from using the anti-upper cover plate edge of a wing for grabbing lower nose girder of spreader beam but with it, and
Hoisting point position can be changed by slide anteroposterior on lower nose girder, solve in lower nose girder via frequently the security of mobile suspension centre with just
Victory needs of problems.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is the structural representation of shoulder pole girder；
Fig. 4 is the sectional view of Fig. 3；
Fig. 5 is the structural representation of driving frame；
Fig. 6 is the sectional view of Fig. 5；
Fig. 7 is the structural representation of spreader beam；
Fig. 8 is the sectional view of Fig. 7；
Fig. 9 is the sectional view of wheel；
Wherein：1st, shoulder pole girder；2nd, suspension rod；3rd, column；4th, hoist cylinder；5th, driving frame；6th, wheel；7th, spreader beam；8th, led under
Beam.
Specific embodiment
With reference to the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground description, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Many details are elaborated in the following description in order to fully understand the present invention, but the present invention can be with
Other manner described here is different from using other to implement, those skilled in the art can be without prejudice to intension of the present invention
In the case of do similar popularization, therefore the present invention is not limited by following public specific embodiment.
As Figure 1-Figure 2, the invention discloses the cantilever beam hoisting machine used during nose girder via under a kind of mobile formwork
Structure, including shoulder pole girder 1（Referring to accompanying drawing 3-4）, suspension rod 2, column 3, hoist cylinder 4, driving frame 5（Referring to accompanying drawing 5-6）, wheel 6
（Referring to accompanying drawing 9）, spreader beam 7（Referring to accompanying drawing 7-8）Deng part, the mechanism is travelled on the track of side on a cantilever beam, driving frame 5
It is H-shaped box shape steel structure, four vertex positions in its both sides install four wheels 6, wheel 6 is the steel wheel of U-shaped tread, its U
Shape tread profile matches with the track on cantilever top surface of the beam, and column 3 is the steel construction of both arms U-shaped, on each armstand top
Center opens up vertical long through-hole as chute, and shoulder pole girder 1 is horizontal box shape steel structure, is placed in the middle of U mouthfuls of column 3, and
And a cross-perforating is provided with the center of shoulder pole girder 1, it is connected with the vertical chute of spacing column and is constituted using bearing pin, axle sleeve
Rise guide and limit mechanism, two hoist cylinders 4 are respectively arranged at the both sides of column 3, by ring flange respectively with shoulder pole girder 1, driving
The steel construction of frame 5 couples up and down, and by two hoist cylinders 2 interlock using realize lift synchronous coordination.
The pin-and-hole extended vertically through in crossbeam is provided with the two ends of shoulder pole girder 1, for lower tying up bar 2, its middle hanger 2 includes finish rolling
Spiral, anchorage top nut, anchorage lower nut and backing plate etc., using anchorage top nut and backing plate by spiral upper end
The upper position of the two ends of shoulder pole girder 1 perforation is installed on, spiral lower end is installed on using anchorage lower nut and backing plate is hung
The lower position of tool beam 7 two ends perforation, replaces steel wire rope as supporting member, while spiral two ends are adopted using spiral
Shoulder pole girder and spreader beam are connected respectively with anchorage nut, and connection is more consolidated, convenient to install, while Hard link can overcome soft company
Connect problem unstable in use.
Spreader beam 7 is used to lift lower nose girder 8, and main body is π shape box shape steel structures, and its top is a crossbeam, and two ends are provided with
The vertical perforation through crossbeam for installing suspension rod 2, two handgrip forms of symmetrical L-type are provided with the bottom of spreader beam 7
Steel construction, for the anti-edge of a wing for grabbing the upper cover plate of lower nose girder 8, using L-type handgrip as the lower nose girder of connection component, when in use
Need not be fixedly connected, convenient lifting improves operating efficiency.
During concrete application, the present invention sets two interlocking hoist cylinders 4 by the top of driving frame 5, is connected to
The position of the bottom surface both sides of shoulder pole girder 1, the jacking system of composition can realize that lower nose girder 8 rises and falls the precision controlling and stress of displacement
Balance route, and the guide and limit mechanism that shoulder pole girder 1 is made up of with column 3 cotter way form, can realize the liter of lower nose girder 8
Drop security control；Steel wire rope is substituted using suspension rod 2, by increasing capacitance it is possible to increase the rigidity of jacking system, reduce up-down vibration and circuit oscillation；
Do not departed from it all the time using the anti-upper cover plate edge of a wing for grabbing lower nose girder 8 of spreader beam 7, and slide anteroposterior can changed on lower nose girder 8
Become hoisting point position, solve the security and convenience needs of problems of frequent mobile suspension centre in the via of lower nose girder 8.
Claims (2)
1. the cantilever beam hoisting mechanism for being used during nose girder via under a kind of mobile formwork, it is characterised in that：Including shoulder pole girder（1）、
Suspension rod（2）, column（3）, hoist cylinder（4）, driving frame（5）, wheel（6）And spreader beam（7）, the shoulder pole girder（1）It is transverse direction
Box shape steel structure, its lateral center is provided with a bearing pin through crossbeam, with column（3）Vertical chute constitute have lifting
The position-limit mechanism of guide and limit function, the column（3）It is vertically arranged double-arm steel construction, column（3）Lower end is installed on
Driving frame（5）Center, open up vertical chute, shoulder pole girder per edge-on arm middle and upper part in column（1）The bearing pin level at middle part is worn
It is located in vertical chute, the driving frame（5）It is H-shaped box shape steel structure, four wheels is symmetrically installed in its both sides（6）, it is described
Wheel（6）It is the steel wheel of U-shaped tread, its U-shaped tread profile matches with the track on cantilever top surface of the beam, shoulder pole girder（1）Two
End is respectively provided with installation suspension rod（2）Vertical through hole, the suspension rod（2）It is a fining twisted steel, on fining twisted steel
End and the supporting installation anchorage in lower end, hoist cylinder are mounted vertically in driving frame（5）And shoulder pole girder（1）Between.
2. the cantilever beam hoisting mechanism for being used during nose girder via under mobile formwork according to claim 1, it is characterised in that：
The hoist cylinder（4）Two sets, two sets of hoist cylinders are set（4）Column is located at respectively（3）Both sides, hoist cylinder（4）Lower end leads to
Cross ring flange and driving frame（5）It is connected, hoist cylinder（4）By ring flange and shoulder pole girder（1）Bottom surface is connected, the spreader beam
（6）It is π word box shape steel structures, its top is a crossbeam, and two ends are provided with for installing being worn through the vertical of crossbeam for suspension rod
Hole, two symmetrical L-type handgrips are provided with its underpart, and handgrip upside is provided with the horizontal steel plate at certain angle of inclination, for anti-
Grab the edge of a wing of lower nose girder upper cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611145702.4A CN106758864B (en) | 2016-12-13 | 2016-12-13 | A kind of cantilever beam hoisting mechanism used during nose girder via under mobile formwork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611145702.4A CN106758864B (en) | 2016-12-13 | 2016-12-13 | A kind of cantilever beam hoisting mechanism used during nose girder via under mobile formwork |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106758864A true CN106758864A (en) | 2017-05-31 |
| CN106758864B CN106758864B (en) | 2018-06-19 |
Family
ID=58876506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611145702.4A Active CN106758864B (en) | 2016-12-13 | 2016-12-13 | A kind of cantilever beam hoisting mechanism used during nose girder via under mobile formwork |
Country Status (1)
| Country | Link |
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| CN (1) | CN106758864B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109914246A (en) * | 2019-03-05 | 2019-06-21 | 中交二航局第四工程有限公司 | A kind of construction method of the cast-in-place super across footpath continuous box girder of 55m mobile formwork |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10219627A (en) * | 1997-02-07 | 1998-08-18 | Kawada Kensetsu Kk | Pc girder erection device |
| CN201981485U (en) * | 2011-03-09 | 2011-09-21 | 武汉通联路桥机械技术有限公司 | Leg replacing mechanism for pier side bracket of bridge pier |
| KR101462202B1 (en) * | 2013-10-16 | 2014-12-24 | 주식회사 비엔지컨설턴트 | Form traveller for through bridge |
| CN205205675U (en) * | 2015-11-25 | 2016-05-04 | 中铁二十局集团有限公司 | Downgoing movable formwork bridge construction machine is demolishd with whole system of transferring |
| CN205348004U (en) * | 2016-01-27 | 2016-06-29 | 中铁十四局集团第一工程发展有限公司 | Moving die carrier |
| CN106049295A (en) * | 2016-05-26 | 2016-10-26 | 石家庄铁道大学 | Carrying mechanism used in movable formwork hole passing process |
-
2016
- 2016-12-13 CN CN201611145702.4A patent/CN106758864B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10219627A (en) * | 1997-02-07 | 1998-08-18 | Kawada Kensetsu Kk | Pc girder erection device |
| CN201981485U (en) * | 2011-03-09 | 2011-09-21 | 武汉通联路桥机械技术有限公司 | Leg replacing mechanism for pier side bracket of bridge pier |
| KR101462202B1 (en) * | 2013-10-16 | 2014-12-24 | 주식회사 비엔지컨설턴트 | Form traveller for through bridge |
| CN205205675U (en) * | 2015-11-25 | 2016-05-04 | 中铁二十局集团有限公司 | Downgoing movable formwork bridge construction machine is demolishd with whole system of transferring |
| CN205348004U (en) * | 2016-01-27 | 2016-06-29 | 中铁十四局集团第一工程发展有限公司 | Moving die carrier |
| CN106049295A (en) * | 2016-05-26 | 2016-10-26 | 石家庄铁道大学 | Carrying mechanism used in movable formwork hole passing process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109914246A (en) * | 2019-03-05 | 2019-06-21 | 中交二航局第四工程有限公司 | A kind of construction method of the cast-in-place super across footpath continuous box girder of 55m mobile formwork |
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| Publication number | Publication date |
|---|---|
| CN106758864B (en) | 2018-06-19 |
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