CN207121824U - It is a kind of can hard and soft conversion preceding auxiliary leg - Google Patents
It is a kind of can hard and soft conversion preceding auxiliary leg Download PDFInfo
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- CN207121824U CN207121824U CN201720831957.XU CN201720831957U CN207121824U CN 207121824 U CN207121824 U CN 207121824U CN 201720831957 U CN201720831957 U CN 201720831957U CN 207121824 U CN207121824 U CN 207121824U
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Abstract
The utility model is related to preceding auxiliary leg, belong to technical field of bridge construction, and in particular to it is a kind of can hard and soft conversion preceding auxiliary leg.Including：C-type beam, outer supporting leg, inner cylinder and hoist cylinder, overturning oil cylinder, jacking cylinder, the supporting leg are stretched by hoist cylinder to control respective angles, pass through degree of disturbing under jacking cylinder jacking regulation.Solve the complexity of existing construction technology, reduce the adverse effect to bridge pier pier, the advantages that improving the operating efficiency of construction.The solution method is simple to operate, strong applicability, can not only improve the security of equipment, and the infringement to pier greatly reduces.
Description
Technical field
Preceding auxiliary leg is the utility model is related to, belongs to technical field of bridge construction, and in particular to one kind hard and soft can be changed
Preceding auxiliary leg.
Background technology
With the fast development of bridge construction plant equipment, construction requirement and performance to plant equipment require more next
Higher, increasing large-tonnage Bridge Erector arises at the historic moment, because large span and heavy weight beam type occur, Bridge Erector itself
Weight and length also increased, degree of disturbing under front end when the increase of weight and length undoubtedly adds Bridge Erector via operation,
And via operation plays very important effect, how to reduce Bridge Erector front end as a step most dangerous in erection process
Under degree of disturbing, be maximum difficulty.Thus, the appearance of preceding auxiliary leg can be very good solve this problem, can reduce down and disturb
Degree, and can gets up the jacking of girder front end, to meet the operation of front leg strut, because the usable floor area of bridge pier is limited, and c-type auxiliary branch
Leg can solve this problem.
Bridge Erector front beam present position necessarily be in outside pier scope, so being hinged on the preceding auxiliary branch on front beam
If leg will be unable to be supported directly in pier top using straight legs mode.Other domestic model Bridge Erectors also have using in bridge before this
Punched on pier or pre-embedded bolt, the mode of erection bracket solve this problem, but to pier construction infection is big, security is poor, makees
Industry efficiency is low.
Utility model content
The utility model is mainly the complexity for solving existing construction technology, reduces the adverse effect to bridge pier pier, is improved
The advantages that operating efficiency of construction.The solution method is simple to operate, strong applicability, can not only improve the security of equipment, and
And the infringement to pier greatly reduces.
Above-mentioned technical problem of the present utility model is mainly what is be addressed by following technical proposals：
It is a kind of can hard and soft conversion preceding auxiliary leg, including：
C-type beam, its upper end are hinged with crane's major girder, and lower end connects outer supporting leg by switching mechanism；
Hoist cylinder, its one end are connected on girder, and the other end connects the C-type beam by rod assembly；
Jacking cylinder, the outer supporting leg is connected to, is provided with reduction post.
Preferably, it is above-mentioned it is a kind of can hard and soft conversion preceding auxiliary leg, in addition to：The C-type beam upper end passes through upper hinge
Axle is connected with twin shaft free bearing by latch.
Preferably, it is above-mentioned it is a kind of can hard and soft conversion preceding auxiliary leg, the switching mechanism is an overturning oil cylinder.
Therefore, the utility model has advantages below：(1) simplify construction technology, reduce the adverse effect to bridge pier pier,
The advantages that improving the operating efficiency of construction；(2) it is simple to operate, strong applicability, the security of equipment can not only be improved, and also it is right
The infringement of pier greatly reduces.
Brief description of the drawings：
Fig. 1-1 sets a roof beam in place structural representation for normal via of the present utility model.
Fig. 1-2 is Fig. 1-1 partial schematic diagram.
Fig. 2-1 is last aperture frame girder construction schematic diagram of the present utility model.
Fig. 2-2 is Fig. 2-1 P to schematic diagram.
Embodiment
Below by embodiment, and with reference to accompanying drawing, the technical solution of the utility model is described in further detail.Figure
In, upper hinge 1, girder truss 2, hoist cylinder 3, rod assembly 4, twin shaft free bearing 5, C-type beam 6, overturning oil cylinder 7, outer supporting leg 8, top
Oil-lifting jar 9, latch 10, telescopic mast 11, bolt 12, spring washer 13, plain cushion 14, nut 15, interior supporting leg 16, pad case 17, last beam oil overhold
18。
Embodiment 1：
Referring to Fig. 1-1, Fig. 1-2, including upper hinge 1, girder truss 2, hoist cylinder 3, rod assembly 4, twin shaft free bearing 5, c-type
Beam 6, outer supporting leg 8, jacking cylinder 9, latch 10, telescopic mast 11., will when being driven to relevant position above bridge pier on front side of Bridge Erector
Position, the front side of twin shaft free bearing 5 separate, propped up outside the left and right sides the double front side full retractions of hinge 1 in the left and right sides with double front sides of hinge 1 on earth
Four latches 10 are extracted at leg, and hoist cylinder 3 slowly shrinks, and will be drawn high girder truss 2 by rod assembly 4 and be adjusted to reasonable angle
After degree, now preceding auxiliary leg is converted into flexible leg by rigid leg, and C-type beam 6 is rigidly connected with outer supporting leg 8, by jacking oil
The jacking upwards simultaneously of cylinder 9, simultaneously when the telescopic mast 11 is stretched to relevant position, by left and right sides jacking cylinder 9 upwards slowly
Jacking, until degree of disturbing under reaching accordingly, the latch 10 of the left and right sides four need to be plugged all, finally by before the double hinges 1 in the left and right sides
Side is all jacked in place, so as to the downwarp of front end during leveling girder vertical shift via, it is ensured that front leg strut can run to front bridge pier
On.
Embodiment 2：
Referring to Fig. 1-1, Fig. 1-2, including upper hinge 1, girder truss 2, hoist cylinder 3, rod assembly 4, twin shaft free bearing 5, c-type
Beam 6, outer supporting leg 8, jacking cylinder 9, latch 10, telescopic mast 11., will when being driven to relevant position above bridge pier on front side of Bridge Erector
The double front side full retractions of hinge 1 in left and right sides position on earth, the front side of twin shaft free bearing 5 on front side of double hinges 1 with separating, by outside the left and right sides
Four latches 10 are extracted at supporting leg, and hoist cylinder 3 slowly jacks, and will be jacked girder truss 2 by rod assembly 4 and be adjusted to reasonable
After angle, now preceding auxiliary leg is converted into flexible leg by rigid leg, and C-type beam 6 is rigidly connected with outer supporting leg 8, will jacked
The jacking upwards simultaneously of oil cylinder 9, when the telescopic mast 11 is stretched to relevant position, by left and right sides jacking cylinder 9 simultaneously slowly to
Upper jacking, until degree of disturbing under reaching accordingly, the latch 10 of the left and right sides four need to be plugged all, finally by the double hinges 1 in the left and right sides
Rear side is all jacked in place, so as to the downwarp of front end during leveling girder vertical shift via, it is ensured that front leg strut can run to front bridge
On pier.
Embodiment 3：
Referring to Fig. 2-1, Fig. 2-2, including upper hinge 1, girder truss 2, hoist cylinder 3, rod assembly 4, overturning oil cylinder 7, outside
Supporting leg 8, bolt 12, spring washer 13, plain cushion 14, nut 15, interior supporting leg 16, pad case 17, last beam oil overhold 18.Driven on front side of Bridge Erector
Above to bridge pier during relevant position, by bolt 12 between left and right sides C-type beam 6 and outer supporting leg 8, spring washer 13, pad 14, nut 15
All take apart, both sides overturning oil cylinder 7 is slowly shunk simultaneously, adjusts to possible angle, and the double rear sides of hinge 1 in the left and right sides are received
Contracting, hoist cylinder 3 slowly shrink, will draw high girder truss 2 by rod assembly 4 and adjust to possible angle, and outer supporting leg 8 reaches
Corresponding state, the last beam oil overhold 18 in left and right two is respectively put into the interior downside of supporting leg 16, opens hydraulic pump, make the last beam oil in the left and right sides
Top 18 jacks simultaneously, four pad casees 17 of first layer is put on the downside of inner cylinder after jacking a segment distance, last beam oil overhold 18 continues to push up
Rise, then four pad casees 17 of the second layer are put on the upside of first layer pad case after jacking a segment distance, the like, until reaching corresponding
Position, finally will the double front sides of hinges 1 in the left and right sides all jacking in place, so as to the downwarp of front end during leveling girder vertical shift via,
Ensure that front leg strut can be run on the bridge pier of front.
In the various embodiments described above, Auxiliary support of the preceding auxiliary leg as Bridge Erector front end, main function is to support and adjust
Flat Bridge Erector horn front end, created conditions for pier (platform) in front leg strut vertical shift.
In vertical shift via, Bridge Erector front support needs to run and support to treat frame across the front end of front pier, by preceding branch
The usable floor area of bracketing change gear packet size and bridge pier limits, therefore, the design of c-type leg is employed, and in structure design, by before
The hinging pin shaft position of auxiliary leg and front beam, is in a straight line in vertical direction and pier top leg location, to ensure
Additional bending moment will not be produced to front beam and horn because supporting leg designs.
Normal via operating mode, auxiliary leg, which is supported on, before Bridge Erector treats frame across in pier top；End is set up across operating mode, preceding auxiliary branch
Leg needs to be supported on bridge or abutment top surface.Due to difference in height therebetween be present, therefore be connected using C-type beam with outer supporting leg
Double-layer frame structure design, and be attached by high-strength bolt to meet the needs of two kinds of different operating modes.Normal via operating mode
Upper and lower two layers of framework is fixedly connected using bolt and (revolution bearing pin is provided with beside conjunction plane), and spiral shell need to only be removed across operating mode by setting up end
Bolt, using oil cylinder by lower floor's framework around fulcrum post axially upper folding.Front leg strut Dual-layer base of frame is provided with 2
Hydraulic jack, for supporting and jacking horn.
The downwarp of front end when the function of auxiliary leg is leveling girder vertical shift via, it is ensured that front leg strut can run to front
On bridge pier.During non-last hole box beam via operation, the supporting leg c-type rod structure is cut with scissors by the rear axle of twin shaft free bearing and the front beam of girder
Connect, after girder vertical shift in place, front bridge pier first half is supported on by the telescopic mast of its underpart, the height of cylinder is adjusted by oil cylinder
Section.
During last hole box beam via operation, c-type rod structure is hinged by the front axle of twin shaft free bearing with front beam, cylinder bottom by
Switching mechanism drives and turned down forward, is supported on by upper strata truss hydraulic jack on the cast-in-place beam bridge floor in front.
Before front leg strut via, twin shaft is all connected to position, auxiliary leg becomes rigid leg before making, and ensures front leg strut mistake
Complete machine safety during hole.
Claims (3)
1. it is a kind of can hard and soft conversion preceding auxiliary leg, it is characterised in that including：
C-type beam (6), its upper end are hinged with crane's major girder, and lower end connects outer supporting leg (8) by switching mechanism；
Hoist cylinder (3), its one end is connected on girder, and the other end connects the C-type beam (6) by rod assembly (4)；
Jacking cylinder (9), the outer supporting leg (8) is connected to, is provided with reduction post (11).
2. it is according to claim 1 it is a kind of can hard and soft conversion preceding auxiliary leg, it is characterised in that including：The C-type beam
(6) upper end is connected by upper hinge (1) with twin shaft free bearing (5) by latch.
3. it is according to claim 1 it is a kind of can hard and soft conversion preceding auxiliary leg, it is characterised in that the switching mechanism is
One overturning oil cylinder (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720831957.XU CN207121824U (en) | 2017-07-11 | 2017-07-11 | It is a kind of can hard and soft conversion preceding auxiliary leg |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720831957.XU CN207121824U (en) | 2017-07-11 | 2017-07-11 | It is a kind of can hard and soft conversion preceding auxiliary leg |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207121824U true CN207121824U (en) | 2018-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720831957.XU Active CN207121824U (en) | 2017-07-11 | 2017-07-11 | It is a kind of can hard and soft conversion preceding auxiliary leg |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083018A (en) * | 2018-09-17 | 2018-12-25 | 安徽德马泰格起重机械有限公司 | A kind of lower guide fixed-point sling erecting bridge machine is moved back with back door |
-
2017
- 2017-07-11 CN CN201720831957.XU patent/CN207121824U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083018A (en) * | 2018-09-17 | 2018-12-25 | 安徽德马泰格起重机械有限公司 | A kind of lower guide fixed-point sling erecting bridge machine is moved back with back door |
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