CN202298472U - Third supporting leg for bridge girder erection machine - Google Patents
Third supporting leg for bridge girder erection machine Download PDFInfo
- Publication number
- CN202298472U CN202298472U CN2011203392340U CN201120339234U CN202298472U CN 202298472 U CN202298472 U CN 202298472U CN 2011203392340 U CN2011203392340 U CN 2011203392340U CN 201120339234 U CN201120339234 U CN 201120339234U CN 202298472 U CN202298472 U CN 202298472U
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- column
- supports
- support
- supporting legs
- bridge formation
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Abstract
The utility model provides a third supporting leg for a bridge girder erection machine, which comprises a left support and a right support. The left support and the right support are independent and respectively supported on adjacent U-shaped concrete beams. The center of a main bearing column of the supports is not coincident with the center of a supported girder of the bridge girder erection machine and deviated to the inner side of a bridge girder. The bottom ends of the two supports are connected with transverse safety devices respectively, an applied moment of the transverse safety devices on the supports is opposite to a moment produced by the noncoincidence and applied to the supports. The upper ends of the two supports are connected with hanging vertical moving mechanisms respectively. Due to a design that the supports are independent in right-and-left mode and eccentric, a clearance requirement that a girder conveying truck feeds girders to the bridge girder erection machine is met, transverse gaps among supporting points are reduced, and bending moment of concealed bent caps of a pier is reduced. The supporting leg design is a stepping mode extensible mechanism so that only a small-stroke hydraulic oil cylinder is needed to achieve big extensible amount of the extensible mechanism. A U-shaped beam main body structure is fully used to guarantee safety of the supporting leg, therefore safety of a whole machine is guaranteed.
Description
Technical field
The utility model relates to the bridge span erecting machine field, particularly wherein No. three supporting legs of bridge formation machine.
Background technology
At present, in building High-speed Railway Bridges, urban track traffic bridge, have a difficult problem for the installation and transportation of U type concrete beam, No. three supporting legs are rear support legs of bridge formation machine.Since the oral area broad of the shape of cross section of U type concrete beam, and the bottom relative narrower adopts No. three leg structures of general bridge formation machine, and as obtaining the reliable supporting effect, its meeting is too near the bridge pier bent cap outside, and is excessive to the moment of bridge pier bent cap.
Summary of the invention
The utility model technical problem to be solved provides a kind of the support reliably can reduce No. three supporting legs of bridge formation machine to bridge pier bent cap moment again.For this reason; The utility model adopts following technical scheme: two supports independently about it comprises; Be supported on respectively on the adjacent U type concrete beam of the mounted left and right sides, the main bearing column center of said support does not overlap with the crane ' s major girder center of being supported, and the deflection bridge is inboard; In the lower end of said two supports respectively connection horizontal to safeties, said horizontal safeties to the opplied moment of said support and support receive not overlap the moment that produces opposite owing to said; The upper end of said two supports connects respectively hangs vertical shift mechanism.
On the basis of adopting technique scheme, the utility model also can adopt following further technical scheme:
Said horizontal safeties are the screw length adjustment device, and the bottom of one of which end and said support is hinged, and its other end is stuck on the slit between the adjacent U type concrete beam of mounted front and back.
Said screw length adjustment device comprises head rod, second connecting rod and screw rod; Said screw rod is between the head rod and second connecting rod; Head rod is connected through nut respectively with said screw rod with second connecting rod; Second connecting rod is in the outside of screw length adjustment device, and it is middle two connecting rods that rotating shaft is arranged.
The hand of spiral at screw rod two ends is opposite, and the screw rod middle part is provided with the hole that supplies force-multiplier tool to pass.
Said support comprises as the front column of support master bearing column, rear column; Said front column and back prop are supported on respectively on the adjacent U type concrete beam of the mounted left and right sides; Said front column is connected back timber and hangs vertical shift mechanism to support crane ' s major girder and installation with the rear column top; The middle part of front column and rear column is connected by contiguous block, and the bottom is connected by bearing beam.
Saidly hang the outside that vertical shift mechanism is in front column and rear column.
Said front column and rear column are the multi-joint telescoping column that is driven by hydraulic jack, and the adjacent segments column is locked by bearing pin under the holding state being in.
But the position, hole that the telescopic column joint has a plurality of supply and marketing axles to penetrate is to regulate height.
Owing to adopt the technical scheme of the utility model, the utlity model has following technique effect:
(1), through independent about supporting leg and eccentric design, both satisfied the headroom requirement that Beam transportation vehicle is given bridge formation machine feeding beam, can realize that again the horizontal offset distance of fulcrum reduces, reduce the stealthy bent cap moment of flexure of bridge pier;
(2), supporting leg is designed to the step-by-step movement telescoping mechanism, therefore only needs the hydraulic jack of very little stroke can realize the big stroke of telescoping mechanism;
(3), make full use of U beam agent structure supporting leg is insured, to guarantee complete machine safety.
Description of drawings
Fig. 1 observes the sketch map of No. three supporting legs in the bridge formation machine for forward.
Fig. 2 observes from Fig. 1 viewing angle, and No. three supporting legs are at the sketch map on bridge pier top.
Fig. 3 for end to observation, No. three supporting legs are at the sketch map on bridge pier top.
The specific embodiment
With reference to accompanying drawing 1,3.Two supports 1,2 independently about No. 3 supporting legs 100 that the utility model provided comprise; Be supported on respectively on the adjacent U type concrete beam of the mounted left and right sides; The upper end of said two supports connects respectively hangs vertical shift mechanism 31,32; Hang vertical shift mechanism and can realize supporting leg vertical shift displacement voluntarily, satisfy the requirement of different spans U beam construction supporting leg erect-position, it is hung roller and is hung on the crane ' s major girder lower edge 801 during work.Said support 1,2 main bearing column center lines do not overlap (also being that support is eccentric is provided with) with the crane ' s major girder that is supported 800 centers; The deflection bridge is inboard; The difference connection horizontal is to safeties 4 in the lower end of said two supports; Said horizontal safeties are opposite with the moment that generation is set owing to support off-centre to the opplied moment of said support, can cancel out each other.
Said horizontal safeties are the screw length adjustment device, and one of which end 41 is hinged with the bottom of said support, and its other end 42 is stuck on the slit 73 between the adjacent U type concrete beam of mounted front and back.Said screw length adjustment device comprises head rod 43, second connecting rod 44 and screw rod 45; Said screw rod 45 is between the head rod 43 and second connecting rod 44; Head rod 43 is connected through nut 46 respectively with said screw rod 45 with second connecting rod 44; Second connecting rod is in the outside of screw length adjustment device, and it is middle two connecting rods that rotating shaft is arranged.The hand of spiral at screw rod two ends is opposite, and the screw rod middle part is provided with the hole that supplies force-multiplier tool to pass.
Comprise front column 61, rear column 62 with reference to accompanying drawing 2 said supports as support master bearing column; Said front column 61 is supported on respectively on the mounted left and right sides adjacent U type concrete beam 71,72 with back prop 62; Said front column 61 is connected back timber 63 and hangs vertical shift mechanism to support crane ' s major girder and installation with back prop 62 tops, the middle part of front column and rear column is connected by contiguous block 64.
Saidly hang the outside that vertical shift mechanism is in front column 61 and rear column 62.
Said front column and rear column are the multi-joint telescoping column that is driven by hydraulic jack; Adjacent upright posts joint is locked by bearing pin being in (also promptly to stretch out under the state) under the holding state; Hydraulic means is not participated in load-bearing, and the lower end of front column and rear column is by being connected through bolted bearing beam 65.
Said multi-joint telescoping column is made up of outer column joint 67 and the inner column joint 68 that is through in the outer column joint; Outer column joint 67 has a plurality of positions, hole 66 that supply said bearing pin to penetrate with inner column joint 68; Can adjust height of landing leg through the hydraulic jack adjusting, satisfy the longitudinal gradient construction requirement.During the via hole operation, supporting leg is regained unsettled through hydraulic jack.
Claims (8)
1. No. three supporting legs of bridge formation machine; It is characterized in that it comprise about two supports independently; Be supported on respectively on the adjacent U type concrete beam of the mounted left and right sides, the main bearing column center of said support does not overlap with the crane ' s major girder center of being supported, and the deflection bridge is inboard; In the lower end of said two supports respectively connection horizontal to safeties, said horizontal safeties to the opplied moment of said support and support receive not overlap the moment that produces opposite owing to said; The upper end of said two supports connects respectively hangs vertical shift mechanism.
2. No. three supporting legs of bridge formation machine as claimed in claim 1; It is characterized in that said horizontal safeties are the screw length adjustment device; The bottom of one of which end and said support is hinged, and its other end is stuck on the slit between the adjacent U type concrete beam in mounted front and back.
3. No. three supporting legs of bridge formation machine as claimed in claim 2; It is characterized in that said screw length adjustment device comprises head rod, second connecting rod and screw rod; Said screw rod is between the head rod and second connecting rod; Head rod is connected through nut respectively with said screw rod with second connecting rod, and second connecting rod is in the outside of screw length adjustment device, and it is middle two connecting rods that rotating shaft is arranged.
4. No. three supporting legs of bridge formation machine as claimed in claim 3 is characterized in that the hand of spiral at screw rod two ends is opposite, and the screw rod middle part is provided with the hole that supplies force-multiplier tool to pass.
5. like claim 1,2, No. three supporting legs of 3 or 4 described bridge formation machines; It is characterized in that said support comprises front column, the rear column as support master bearing column; Said front column and back prop are supported on respectively on the adjacent U type concrete beam of the mounted left and right sides; Said front column is connected back timber and hangs vertical shift mechanism to support crane ' s major girder and installation with the rear column top, the middle part of front column and rear column is connected by contiguous block, and the bottom is connected by bearing beam.
6. No. three supporting legs of bridge formation machine as claimed in claim 5 is characterized in that the said outside that vertical shift mechanism is in front column and rear column of hanging.
7. No. three supporting legs of bridge formation machine as claimed in claim 5 is characterized in that said front column and the rear column multi-joint telescoping column for being driven by hydraulic jack, and the adjacent segments column is locked by bearing pin under the holding state being in.
8. No. three supporting legs of bridge formation machine as claimed in claim 7, but it is characterized in that the position, hole that the telescopic column joint has a plurality of supply and marketing axles to penetrate, to regulate height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203392340U CN202298472U (en) | 2011-09-09 | 2011-09-09 | Third supporting leg for bridge girder erection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203392340U CN202298472U (en) | 2011-09-09 | 2011-09-09 | Third supporting leg for bridge girder erection machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202298472U true CN202298472U (en) | 2012-07-04 |
Family
ID=46367403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203392340U Expired - Fee Related CN202298472U (en) | 2011-09-09 | 2011-09-09 | Third supporting leg for bridge girder erection machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202298472U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102912735A (en) * | 2012-11-06 | 2013-02-06 | 苏州大方特种车股份有限公司 | Supporting leg mechanism of bridging vehicle |
| CN106835999A (en) * | 2017-03-31 | 2017-06-13 | 秦皇岛天业通联重工科技有限公司 | A kind of rear supporting leg of bridge erecting machine device |
| WO2020143210A1 (en) * | 2019-01-09 | 2020-07-16 | 山东恒堃机械有限公司 | Front leg of movable formwork |
| WO2020143211A1 (en) * | 2019-01-09 | 2020-07-16 | 山东恒堃机械有限公司 | Novel supporting leg in mobile scaffold |
-
2011
- 2011-09-09 CN CN2011203392340U patent/CN202298472U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102912735A (en) * | 2012-11-06 | 2013-02-06 | 苏州大方特种车股份有限公司 | Supporting leg mechanism of bridging vehicle |
| CN102912735B (en) * | 2012-11-06 | 2015-05-27 | 苏州大方特种车股份有限公司 | Supporting leg mechanism of bridging vehicle |
| CN106835999A (en) * | 2017-03-31 | 2017-06-13 | 秦皇岛天业通联重工科技有限公司 | A kind of rear supporting leg of bridge erecting machine device |
| CN106835999B (en) * | 2017-03-31 | 2020-02-21 | 秦皇岛天业通联重工科技有限公司 | Rear supporting leg device of bridge girder erection machine |
| WO2020143210A1 (en) * | 2019-01-09 | 2020-07-16 | 山东恒堃机械有限公司 | Front leg of movable formwork |
| WO2020143211A1 (en) * | 2019-01-09 | 2020-07-16 | 山东恒堃机械有限公司 | Novel supporting leg in mobile scaffold |
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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: 20120704 Termination date: 20200909 |