CN102912735B - Supporting leg mechanism of bridging vehicle - Google Patents
Supporting leg mechanism of bridging vehicle Download PDFInfo
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- CN102912735B CN102912735B CN201210437589.2A CN201210437589A CN102912735B CN 102912735 B CN102912735 B CN 102912735B CN 201210437589 A CN201210437589 A CN 201210437589A CN 102912735 B CN102912735 B CN 102912735B
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Abstract
The invention relates to a supporting leg mechanism of a bridging vehicle, which includes a supporting leg body directly connected with the bottom of a main beam of the bridging vehicle, a support upright post connected with the lower part of the supporting leg body, a partial load beam connected with the lower part of the support upright post, and a support oil cylinder connected with the lower part of the partial load beam, wherein the bottom of the support oil cylinder can be supported on the ground. The supporting leg mechanism can be used for supporting the whole vehicle during the construction of the bridging vehicle, has a simple structure, and enables the support conversion to be very convenient.
Description
Technical field
the present invention relates to a kind of support leg mechanism of bridging car.
Background technology
at present, in the erection carrying out concrete continuous girder bridge, usual beam block sections is prefabricated in beam field, and ground transport is to bridge location, and reproduce field by beam block section assembling Cheng Qiao, therefore, Bridge Erector is requisite engineering machinery in bridge erection.Existing Bridge Erector, has multiple pillar, supporting leg, and coordinate alternately running when erection and via hole, such structure not only makes efficiency of construction low, and the work period is long, also needs more auxiliary equipment to carry, holistic cost is improved; Meanwhile, via hole is loaded down with trivial details takies the longer time, there is the problems such as dismounting, installation, transport especially during the situations such as transition, excessively tunnel.No matter all these is transport or the problem that efficiency is low, the cycle is long, cost is high in erection construction if causing Bridge Erector.
Summary of the invention
the object of this invention is to provide a kind of support leg mechanism of bridging car.
for achieving the above object, the technical solution used in the present invention is:
a kind of support leg mechanism of bridging car, described support leg mechanism comprises direct-connected supporting leg body bottom bridging car owner beam, is connected to the supporting upright post of described supporting leg body lower part, is connected to the load-sharing girder of described supporting upright post bottom and is connected to the supporting oil cylinder of described load-sharing girder bottom, and the bottom of described supporting oil cylinder can support on the ground.
preferably, described supporting leg body, the cross section of supporting upright post are box-shaped.
preferably, be connected by bolt between described supporting leg body and described supporting upright post.
preferably, described supporting oil cylinder is provided with mechanical lock.
preferably, the upper end of described supporting upright post is provided with and jacking mechanism between pier stud and to drawing mechanism.
because technique scheme is used, the present invention compared with prior art has following advantages:
support leg mechanism of the present invention completes the supporting to car load in the work progress of bridging car, and its structure is simple, completes the conversion convenience very of supporting.
Accompanying drawing explanation
accompanying drawing 1 is front view of the present invention;
accompanying drawing 2 is top view of the present invention;
accompanying drawing 3 is the front view of jacking auxiliary body in the present invention;
accompanying drawing 4 is the top view of jacking auxiliary body in the present invention;
accompanying drawing 5-9 is the process chart of lifting body in the present invention;
accompanying drawing 10-12 is the process chart supporting vertical shift governor motion in the present invention;
accompanying drawing 13-25 is process chart of the present invention.
wherein: 1, modular cart; 10, pull bar; 11, pull bar; 12, pull bar; 13, pull bar; 2, load-sharing girder; 20, support bracket; 3, lifting body; 30, jacking column; 300, box-shaped sections block; 32, jacking auxiliary frame; 33, hydraulic jack; 4, girder; 40, connecting rod; 41, connecting rod; 42, connecting rod; 43, connecting rod; 44, connecting rod; 45, connecting rod; 5, vertical shift governor motion is supported; 50, dolly; 51, jack; 52, locking sprocket wheel; 53, crank depression bar; 54, locking pawl; 55, chain; 56, reductor is driven; 57, traversing slide block; 58, sideslip oil cylinder; 6, support leg mechanism; 60, supporting leg body; 61, supporting upright post; 62, distribution beam; 63, supporting oil cylinder; 7, pier stud.
Detailed description of the invention
below in conjunction with drawings and Examples, the invention will be further described:
a kind of bridging car as shown in Figure 1, 2, it comprises multiple stage modular cart 1, the load-sharing girder 2 be arranged in modular cart 1, the lifting body 3 be arranged on load-sharing girder 2, the girder 4 be arranged on lifting body 3, be arranged on girder 4 top supporting vertical shift governor motion 5, be arranged on support leg mechanism 6 bottom girder 4 and hydraulic pressure and electrical control system.Below specifically each mechanism is described in detail:
multiple stage modular cart 1 longitudinal arrangement is also provided with two row, is provided with modular cart and connects system between two modular cart 1 arranged side by side in two row modular cart 1, modular cart connect system comprise two can the pull bar 10 of folding in the horizontal direction.Before and after the vehicle frame of modular cart 1 and left and right sides all establish connection holes position, can left and right and front and back assembled, so just can realize the demand of different platform size, different deadweight tonnage.The modular cart 1 adopted in the present embodiment totally 4,2 main 2 from, every platform is 2 file 4 axis carrying platforms.
the technical characteristics of modular cart 1 is as follows:
hydraulic drive: each drive axle hangs, drive, turn to, vehicle frame leveling all adopts hydraulic drive;
micro-electronic control: by micro-electronic control, solves " difference power differential " and " skidding " problem that drive system occurs in motion at random;
independent suspension: vehicle is when fluctuating road traveling, and each hanging oil cylinder can from Row sum-equal matrix, the basic held stationary of car body energy;
independent steering: each suspension can freely be turned round, realizes that car load is kept straight on, the Eight characters turns to, with certain angle diagonal, walks crosswise and the multiple pattern that turns to such as original position revolution;
and car function: can vertical and horizontal be realized and car function;
modularized design, can carry out various combination to satisfy the demand according to goods profile and weight, can be used as Over-size transport vehicle after engineering terminates, comprehensive utilization ratio is high;
handling capacity is strong, can meet city Ordinary Rd transport.
the important technological parameters of modular cart 1 is as follows:
be suitable for road surface: the graded broken stone road surface of cement, pitch and compacting;
vehicle width: two files≤3200mm;
the speed of a motor vehicle: the unloaded speed of a motor vehicle 5 km/h ~ 12 km/h,
the heavy duty speed of a motor vehicle 3 km/h ~ 7 km/h,
fine motion speed 0km/h ~ 0.2km/h,
single suspended load quality: ~ 13,714kg;
adapt to the gradient: longitudinal gradient ± 3%,
horizontal wall inscription (containing open roof) ± 4%;
tire specification/quantity: 7.5R15/336;
wheel rim specification/quantity: 6.0-15/336;
platform extreme lower position (heavy duty): 850 mm;
lifting platform total kilometres: 520mm.
every platform modular cart 1 is respectively arranged with load-sharing girder 2, and load-sharing girder 2 is box structure, and the load transmitted on top is dispensed to each and hangs, and strengthens the vertical rigidity of car body simultaneously; Many load-sharing girders 2 are provided with vertical lateral connection system each other, to ensure resistance to overturning, every root load-sharing girder 2 are provided with support bracket 20.
lifting body 3 comprises the jacking column 30 being arranged on load-sharing girder 2 top, the hydraulic jack 33 arranging load-sharing girder 2 top and is arranged on hydraulic jack 33 top, is set in the jacking auxiliary frame 32 of jacking column 30 outside, as shown in Figure 3,4.
specifically: jacking column 30 comprises several box-shaped sections blocks 300 stacked gradually along short transverse, connected and composed the structure of pillar mutually successively by bolt between box-shaped sections block 300, each box-shaped sections block 300 offers the first pin-and-hole, on jacking auxiliary frame 32, the position of corresponding first pin-and-hole offers the second pin-and-hole, can be fixed by bearing pin between first pin-and-hole, the second pin-and-hole, its underpart is bearing in load-sharing girder 2 end face, upper support girder 4; Jacking auxiliary frame 32 can fix with each box-shaped sections block 300; Hydraulic jack 33 is provided with two, is arranged on the support bracket 20 of load-sharing girder 2.
girder 4 is provided with two groups, is provided with and is flexibly connected system between two groups of girders 4, be flexibly connected system comprise many groups can the connecting rod 40 of folding in the horizontal direction.Girder 4 comprises at least three joint case beams and three joint girder trusses, is connected, is connected between girder truss by bearing pin between case beam by gusset plate with bolt.In addition, girder 4 is provided with at pier stud position to be walked crosswise pull system, the overturning moment produced with balance supporting leg mechanism 6 bias.
supporting vertical shift governor motion 5 comprises supporting governor motion and sections vertical shift governor motion, and each sections block of concrete segment block is provided with two groups of supporting governor motions, and every root girder 4 is provided with a sections vertical shift governor motion.Supporting governor motion comprise be arranged on girder 4 top and can along the dolly 50 of girder 4 length direction movement, be arranged on dolly 50 top and can along the traversing slide block 57 of girder 4 left and right directions movement, be arranged on traversing slide block 57 and can along short transverse lifting jack 51; Dolly 50 is provided with sideslip oil cylinder 58, sideslip oil cylinder 58 acts on traversing slide block 57.Sections vertical shift governor motion comprises closed chain system, and chain system comprises chain 55, the driving reductor 56 of chain drive-belt 55 transmission.Chain system can drive dolly 50 to move, and dolly 50 is provided with for controlling its lockable mechanism whether moved of chain system drive, and when lockable mechanism locks, chain system drives dolly 50 to move.
specifically: lockable mechanism comprises locking sprocket wheel 52, crank depression bar 53 and locking pawl 54, locking sprocket wheel 52 is meshed with chain 55, crank depression bar 53 is in transmission connection mutually with locking pawl 54, when locking pawl 54 does not lock with locking sprocket wheel 52 phase, locking sprocket wheel 52 is by the driving rotation of chain system; When locking pawl 54 locks with locking sprocket wheel 52 phase, locking sprocket wheel 52 is moved by the driving dolly 50 of chain system.
support leg mechanism 6 comprises direct-connected supporting leg body 60 bottom girder 4, is connected to the supporting upright post 61 of supporting leg body 60 bottom, is connected to the distribution beam 62 of supporting upright post 61 bottom and is connected to the supporting oil cylinder 63 of distribution beam 62 bottom, and the bottom of supporting oil cylinder 63 can support on the ground.The cross section of supporting leg body 60, supporting upright post 61 is box-shaped, is bolted between the two; Supporting oil cylinder 63 is provided with mechanical lock, ensures safety during heavily loaded operation; The upper end of supporting upright post 61 is provided with and jacking mechanism between pier stud and to drawing mechanism, to ensure to stablize and to transmit transverse horizontal power.
hydraulic pressure and electrical control system: wherein: hydraulic system is except modular cart hydraulic system, supporting 3 kind of 20 cover of bridging car, can be divided into supporting regulator solution pressing system (13 cover), support leg hydraulic system (2 cover), jacking hydraulic system (2 cover), girder bracing folding hydraulic system (3 cover) by function.The supporting 20 cover hydraulic systems of bridging car all adopt Electronic control, all pumping plants in hydraulic system and all adopt A type pressing type rubber hose coupling between the oil cylinder of its control, socket-welding fitting is connected; Vertical machine used all adopts Y-series (degree of protection IP44) threephase asynchronous, rated voltage 380V, rated frequency 50Hz; Various valve element used (solenoid operated directional valve, electromagnetic relief valve) and displacement transducer all adopt direct current 24V.
electrically and control system: modular cart is by diesel engine drives, and other mechanism is driven by power and powers with diesel-driven generator, and control mode adopts Digiplex to control and wire control board control.All electrical control cubicles are water proof types; Cable all has cable channel to protect, and cable adopts mine cable and Flame-Retardant and Oil-Resistant cable; Motor, sensor guard grade are IP55, and limit switch adopts additional safeguard procedures; All cable connectors are all through encapsulation process.
the concrete course of work setting forth lower the present embodiment below:
as shown in Figure 13-25: when carrying out the construction of concrete beam block, car load is supported by support leg mechanism 6, and two pier studs 7 lay respectively between connecting rod 40,41 and connecting rod 44,45; After completing construction, supporting oil cylinder 63 reduces, and girder 4 is directly stressed on lifting body 3, and now girder 4 is bearing on jacking column 30; Open connecting rod 41,45 and pull bar 10, car load moves; Close connecting rod 41,42 and pull bar 10, open connecting rod 42 and pull bar 11, car load moves; Close connecting rod 42 and pull bar 11, open connecting rod 43 and pull bar 12, car load moves; Close connecting rod 43 and pull bar 12, open connecting rod 40,44 and pull bar 13, car load moves; Close connecting rod 40,44 and pull bar 13, displacement completes, and next group pier stud 7 lays respectively between connecting rod 40,41 and connecting rod 44,45; Supporting oil cylinder 63 raises, and car load is supported by support leg mechanism 6 again.
the concrete course of work setting forth lifting body 3 in lower the present embodiment below:
as shown in figures 5-9: initial position, jacking auxiliary frame 32 locks with the most next box-shaped sections block 300 phase, when need decline, remove the locking of jacking auxiliary frame 32 and the most next box-shaped sections block 300, hydraulic jack 33 drives jacking auxiliary frame 32 to rise the height of a box-shaped sections block 300, and lock with upper box-shaped sections block 300 phase, the most next box-shaped sections block 300 removes, hydraulic jack 33 declines the height of a box-shaped sections block 300, a upper box-shaped sections block 300 becomes the most next, repeat said process, complete decline process, when needs carry out jacking, otherwise operate.
the course of work of vertical shift governor motion 5 is supported below in the lower the present embodiment of concrete elaboration:
as shown in figs. 10-12: when crank depression bar 53 does not press down, locking pawl 54 does not block locking sprocket wheel 52, and locking sprocket wheel 52 rotates with chain 55, and dolly 50 is motionless; After crank depression bar 53 presses down, locking pawl 54 blocks locking sprocket wheel 52, and dolly 50 moves with chain 55, now, can transport concrete beam block.
above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (3)
1. the support leg mechanism of a bridging car, it is characterized in that: described support leg mechanism comprises direct-connected supporting leg body bottom bridging car owner beam, is connected to the supporting upright post of described supporting leg body lower part, is connected to the distribution beam of described supporting upright post bottom and is connected to the supporting oil cylinder of described distribution beam bottom, the bottom of described supporting oil cylinder can support on the ground, be connected by bolt between described supporting leg body and described supporting upright post, the upper end of described supporting upright post is provided with and jacking mechanism between pier stud and to drawing mechanism.
2. the support leg mechanism of bridging car according to claim 1, is characterized in that: described supporting leg body, the cross section of supporting upright post are box-shaped.
3. according to the support leg mechanism of the bridging car described in claim 1, it is characterized in that: described supporting oil cylinder is provided with mechanical lock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210437589.2A CN102912735B (en) | 2012-11-06 | 2012-11-06 | Supporting leg mechanism of bridging vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210437589.2A CN102912735B (en) | 2012-11-06 | 2012-11-06 | Supporting leg mechanism of bridging vehicle |
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| CN102912735A CN102912735A (en) | 2013-02-06 |
| CN102912735B true CN102912735B (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210437589.2A Active CN102912735B (en) | 2012-11-06 | 2012-11-06 | Supporting leg mechanism of bridging vehicle |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004250983A (en) * | 2003-02-20 | 2004-09-09 | Sumitomo Mitsui Construction Co Ltd | Viaduct |
| CN202298472U (en) * | 2011-09-09 | 2012-07-04 | 腾达建设集团股份有限公司 | Third supporting leg for bridge girder erection machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050050870A1 (en) * | 2003-03-03 | 2005-03-10 | Cheng Shi-Wai S. | Method and apparatus for filtering exhaust particulates |
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2012
- 2012-11-06 CN CN201210437589.2A patent/CN102912735B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004250983A (en) * | 2003-02-20 | 2004-09-09 | Sumitomo Mitsui Construction Co Ltd | Viaduct |
| CN202298472U (en) * | 2011-09-09 | 2012-07-04 | 腾达建设集团股份有限公司 | Third supporting leg for bridge girder erection machine |
Non-Patent Citations (2)
| Title |
|---|
| 岳丽敏."轮轨式提梁机大车支撑机构液压系统设计",岳丽敏,第3页~第4页,2011年12月15日.《中国优秀硕士学位论文全文数据库 工程科技II辑》.2011,(第S1期),第3~4页. * |
| 王员根."JQ900型下导梁架桥机方案研究",王员根,桥梁建设,第26~28页,2007年12月31号.《桥梁建设》.2007,(第S1期),第26~28页. * |
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