CN202969281U - Dual-purpose bridge girder erection machine central leg capable of transversely shifting box girder of 450 tons or 900 tons - Google Patents
Dual-purpose bridge girder erection machine central leg capable of transversely shifting box girder of 450 tons or 900 tons Download PDFInfo
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- CN202969281U CN202969281U CN 201220717086 CN201220717086U CN202969281U CN 202969281 U CN202969281 U CN 202969281U CN 201220717086 CN201220717086 CN 201220717086 CN 201220717086 U CN201220717086 U CN 201220717086U CN 202969281 U CN202969281 U CN 202969281U
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Abstract
A dual-purpose bridge girder erection machine central leg capable of transversely shifting a box girder of 450 tons or 900 tons comprises a saddle, a lower horizontal beam, upper curved beams, lower curved beams transverse rails and transverse hydraulic cylinder (11). A plurality of sliding bearings (3) are fixedly arranged at the bottom end of the lower horizontal beam (7), and are in sliding connections with the transverse rails. Two ends of the transverse hydraulic cylinder (11) are respectively connected with the transverse rails and the lower horizontal beam (7). Due to transformation based on the existing bridge girder erection machine facilities, available resources are reasonably applied, stable transversely shifting of a bridge girder erection machine is realized at lower cost with the whole bridge girder erection machine structure. A front leg can cooperate with other legs and lifting appliances to realize transversely shifting the bridge girder erection machine as a whole by being pushed by a cylinder under uniform control of the bridge girder erection machine after the front leg is transformed, multi-breadth bridge construction efficiency is greatly improved.
Description
Technical field
The utility model relates to bridgework machinery, is that a kind of high ferro railway bridge sets up in engineering specifically, in the bridge span erecting machine of 900 tons of case beams and 450 tons of twin beams dual-purposes can be traversing supporting leg in 450 tons or 900 tons of case beam dual-purpose Bridge Erectors.
Background technology
Growing along with economy, China has experienced the climax of a high speed railway construction, and each unit in charge of construction has also purchased a large amount of bridge transportation rack devices.Next step will enter Southwestern China, mountain area, south China, limited by orographic condition, and often the tunnel is many for these regional railway tracks, and sweep is little, and the beam type is complicated, and existing bridge transportation rack device can not satisfy the bridge erection requirement under new operating mode usually.For taking full advantage of existing equipments resources, reduce engineering cost, high-quality, high efficiencyly realize that these regional case beams fortune framves are inevitable to the transformation of existing transportation rack device.Existing bridge span erecting machine is applicable to setting up of the straight bridge of simple single width, needs vertically to lay complete rotary head again for the multiple plate bridge floor always and carries out setting up of next horizontal breadth, and time and effort consuming and efficient are very low.
Setting up of twin beams can be adopted three kinds of method for traversing usually, and namely trolley is traversing, complete machine is traversing and the traversing beam in pier top, when determining the transformation overall technological scheme, has considered respectively the feasibility of above-mentioned three kinds of schemes.Because the girder spacing is narrower, the traversing beam of trolley is inadequate, and change girder spacing must redesign, process three supporting legs, and the retrofit work amount is too large, and affects complete machine and cross tunnelling function, so the traversing scheme of trolley is unworkable.As adopt the traversing beam technology in pier top, and Bridge Erector need not large change, but need increase by a traversing boom device of cover, and need to move the Liangping platform other the setting up of each bridge pier, and labor strength is large, and construction cost is high, and safety is difficult to assurance, inefficiency.Through scheme comparison, final definite traversing technical scheme of complete machine that adopts.Realize that complete machine is traversing and must be transformed three supporting legs of former Bridge Erector, set up respectively Traverse Displacement Unit.The utility model solves the middle supporting leg transformation in the traversing transformation of Bridge Erector complete machine.Make middle supporting leg can coordinate the traversing needs that set up of complete machine.
Summary of the invention
Technical problem to be solved in the utility model be to provide a kind of can be traversing supporting leg in 450 tons or 900 tons of case beam dual-purpose Bridge Erectors, make in this supporting leg can coordinate the transformation of whole Bridge Erector to complete high efficiency twin beams and set up.
Described can be traversing supporting leg in 450 tons or 900 tons of case beam dual-purpose Bridge Erectors, comprise it is characterized in that upper curved beam and the lower curved beam of saddle, lower transverse beam, both sides: also comprise cross moving track, traversing hydraulic cylinder; Uniform a plurality of slip support abutments are fixed in described lower transverse beam bottom, and described slip support abutment and described cross moving track are slidably connected, and the two ends of described traversing hydraulic cylinder are connected with lower transverse beam with cross moving track respectively.
Described slip support abutment bottom is provided with polytetrafluoroethylene (PTFE) slippage cushion block.
Weld stiffener between described slip support abutment and lower transverse beam body.
Described cross moving track is assembled for the left joint of cross moving track beam and the right joint of cross moving track beam by the mutual pin joint of rail beam connecting pin.
The two ends of described traversing hydraulic cylinder are respectively by pin and cross moving track and lower transverse beam pin joint.
The two ends that described cross moving track is positioned at the case beam are respectively equipped with the rail beam buttress.
Laterally be provided with four between described cross moving track and case beam for the running truck that vertically moves, by four the vertical operations of tracks realization on juxtaposition case beam.
The utility model is transformed on the basis of original Bridge Erector facility, rationally utilizes existing resource, coordinates the Bridge Erector complete machine structure to realize can be steadily traversing Bridge Erector with less input.Middle supporting leg transformation described in the utility model makes middle supporting leg coordinate other supporting leg, suspender to realize the whole traversing of Bridge Erector under the unified oil cylinder pushing of controlling of Bridge Erector, significantly improves the efficient of multiple plate Summarized Account of Bridge Erection Construction.The utility model sets up in engineering applicable to the high ferro railway bridge, the bridge span erecting machine of 900 tons of case beams and 450 tons of twin beams dual-purposes.
Description of drawings
Fig. 1 is the utility model structural representation front view.
In figure: the left joint of 1-cross moving track beam, the right joint of 2-cross moving track beam, 3-slip support abutment, 4-slippage cushion block, 5-rail beam buttress, 6-rail beam connecting pin, 7-lower transverse beam, 8-stiffener, 9-running truck, 10-case beam, the traversing hydraulic cylinder of 11-.
The specific embodiment
The present invention is further described below in conjunction with accompanying drawing: as shown in fig. 1, described can be traversing supporting leg in 450 tons or 900 tons of case beam dual-purpose Bridge Erectors, the upper curved beam and the lower curved beam that comprise saddle, lower transverse beam, both sides, the upper curved beam of described saddle, lower transverse beam, both sides is fixedly connected with lower curved beam that to become middle supporting leg top whole, also comprises cross moving track, traversing hydraulic cylinder 11; Uniform a plurality of slip support abutments 3 are fixed in described lower transverse beam 7 bottoms, and described slip support abutment 3 is slidably connected with described cross moving track, are connected with lower transverse beam with cross moving track respectively and are connected in the two ends of described traversing hydraulic cylinder 11.Described slip support abutment 3 bottoms are provided with polytetrafluoroethylene (PTFE) slippage cushion block 4.The slide block of polytetrafluoroethylmaterial material makes the front leg strut can smooth sliding.Also can coat butter during use, the top integral body that makes middle supporting leg transverse shifting stably under the promotion of traversing hydraulic cylinder 11.
Described cross moving track is assembled for the left joint 1 of cross moving track beam and the right joint 2 of cross moving track beam by rail beam connecting pin 6 mutual pin joints.Following bearing load be the twin beams of two 450t, because the great role of Bridge Erector load can only be on web in the position of beam.On two webs of every beam, corresponding two fulcrums, both guaranteed stressed dividing equally, and adapts to again horizontal wall inscription.
The two ends of described traversing hydraulic cylinder 11 are respectively by pin and cross moving track and lower transverse beam pin joint.Described cross moving track is limited length not, after slipping over traversing hydraulic cylinder 11 length, extract pin out, traversing hydraulic cylinder 11 piston rods are regained, pin inserts the next fixing hole of traversing slideway, makes middle supporting leg to continue mobile, in this way, be particularly suitable for the steady state of long distance moving at a slow speed of supporting leg, realize the transverse shifting of supporting leg with little cost and hydraulic cylinder.
The two ends that described cross moving track is positioned at the case beam are respectively equipped with rail beam buttress 5.When not moving, plays middle supporting leg stable supplemental support effect.
Laterally be provided with four between described cross moving track and case beam 10 for the running truck 9 that vertically moves, by four the vertical operations of tracks realization on juxtaposition case beam.
In former Bridge Erector, supporting leg adopts the double track operation, gauge 6m when setting up the single box single chamber beam, and setting up single case pair chambers beam is gauge 7.5m.When setting up twin beams, as still adopting double track and former design gauge, to cause the Bridge Erector via hole and frame case beam action power be surpassed designing requirement when setting a roof beam in place, therefore middle supporting leg is changed into four rail operations, gauge 2.7m, track is positioned at case web top substantially, and Bridge Erector has passed through inspection to the stressed effect of frame case beam and calculated.
Claims (7)
- One kind can be traversing supporting leg in 450 tons or 900 tons of case beam dual-purpose Bridge Erectors, comprise it is characterized in that upper curved beam and the lower curved beam of saddle, lower transverse beam, both sides: also comprise cross moving track, traversing hydraulic cylinder (11); Uniform a plurality of slip support abutments (3) are fixed in described lower transverse beam (7) bottom, and described slip support abutment (3) is slidably connected with described cross moving track, and the two ends of described traversing hydraulic cylinder (11) are connected 7 with cross moving track with lower transverse beam respectively) be connected.
- According to claim 1 can be traversing supporting leg in 450 tons or 900 tons of case beam dual-purpose Bridge Erectors, it is characterized in that: described slip support abutment (3) bottom is provided with polytetrafluoroethylene (PTFE) slippage cushion block (4).
- According to claim 1 can be traversing supporting leg in 450 tons or 900 tons of case beam dual-purpose Bridge Erectors, it is characterized in that: weld stiffener (8) between described slip support abutment (3) and lower transverse beam body.
- According to claim 1 can be traversing supporting leg in 450 tons or 900 tons of case beam dual-purpose Bridge Erectors, it is characterized in that: described cross moving track is for the left joint of cross moving track beam (1) and the right joint of cross moving track beam (2) of pin joint is assembled mutually by rail beam connecting pin (6).
- According to claim 1 can be traversing supporting leg in 450 tons or 900 tons of case beam dual-purpose Bridge Erectors, it is characterized in that: the two ends of described traversing hydraulic cylinder (11) are respectively by pin and cross moving track and lower transverse beam pin joint.
- According to claim 1 or 4 described can be traversing supporting leg in 450 tons or 900 tons of case beam dual-purpose Bridge Erectors, it is characterized in that: the two ends that described cross moving track is positioned at the case beam are respectively equipped with rail beam buttress (5).
- According to claim 1 or 4 described can be traversing supporting leg in 450 tons or 900 tons of case beam dual-purpose Bridge Erectors, it is characterized in that: laterally be provided with four between described cross moving track and case beam (10) for the running truck (9) that vertically moves, by four the vertical operations of tracks realization on juxtaposition case beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220717086 CN202969281U (en) | 2012-12-21 | 2012-12-21 | Dual-purpose bridge girder erection machine central leg capable of transversely shifting box girder of 450 tons or 900 tons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220717086 CN202969281U (en) | 2012-12-21 | 2012-12-21 | Dual-purpose bridge girder erection machine central leg capable of transversely shifting box girder of 450 tons or 900 tons |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202969281U true CN202969281U (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220717086 Expired - Fee Related CN202969281U (en) | 2012-12-21 | 2012-12-21 | Dual-purpose bridge girder erection machine central leg capable of transversely shifting box girder of 450 tons or 900 tons |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202969281U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105908636A (en) * | 2016-06-02 | 2016-08-31 | 石家庄铁道大学 | Multifunctional rear supporting leg system of single-girder bridge girder erection machine |
| CN113802467A (en) * | 2021-10-27 | 2021-12-17 | 重庆城建控股(集团)有限责任公司 | Large-gradient beam erecting method based on bridge girder erection machine |
-
2012
- 2012-12-21 CN CN 201220717086 patent/CN202969281U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105908636A (en) * | 2016-06-02 | 2016-08-31 | 石家庄铁道大学 | Multifunctional rear supporting leg system of single-girder bridge girder erection machine |
| CN113802467A (en) * | 2021-10-27 | 2021-12-17 | 重庆城建控股(集团)有限责任公司 | Large-gradient beam erecting method based on bridge girder erection machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20211221 |