CN201990951U - Fast roller wheel for installation of large bridge - Google Patents
Fast roller wheel for installation of large bridge Download PDFInfo
- Publication number
- CN201990951U CN201990951U CN2011200968724U CN201120096872U CN201990951U CN 201990951 U CN201990951 U CN 201990951U CN 2011200968724 U CN2011200968724 U CN 2011200968724U CN 201120096872 U CN201120096872 U CN 201120096872U CN 201990951 U CN201990951 U CN 201990951U
- Authority
- CN
- China
- Prior art keywords
- roller wheel
- roller
- balancing stand
- fast
- shaft core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model provides a fast roller wheel for the installation of a large bridge. The fast roller wheel comprises a plurality of same roller wheels; roller wheel pin shafts of all the roller wheels surround a roller wheel shaft core through chain plates to form an annular whole body and can smoothly roll around the roller wheel shaft core; the roller wheel shaft core is fixed at the front end and the rear end of a shell frame and is connected into a whole; and the shell frame is connected with the middle part of a balancing stand through a connection pin shaft. The fast roller wheel has the beneficial effects that the fast roller wheel is adopted to solve the problem that the stress of a single roller wheel is small; each group of fast roller wheels can bear the weight of 80t; and when a box girder section of a common bridge is installed, four-six groups of fast roller wheels are adopted to satisfy the requirements of the installation weight. The fast roller wheel can be fixed in a manner that a through hole on the balancing stand of the fast roller wheel is bolted and fixed with a box girder or can be welded with a soleplate of the box girder, so that the resistance in the movement of the box girder is reduced to facilitate the quick installation of the box girder. The fast roller wheel is suitable for installing steel bridges with large span and heavy mass as well as bridges that span rivers, shallows and the like and can not adopt a large hoisting machine during the installation due to bad geological features.
Description
Technical field
The utility model relates to a kind of mobile device that large bridge is installed usefulness that is used for, and especially a kind of large bridge is installed the quick roller of usefulness.
Background technology
What at present, the large bridge installation technology adopted mainly is machineries such as large tonnage crane, bridge formation machine.Have advantage easy for installation, fireballing though adopt large tonnage crane to install, be not suitable in the geological conditions complex environment, in geological conditions rugged environments such as river, shoal.And adopt the cost of large tonnage crane higher, improved the cost cost of bridge virtually.
Adopting the bridge formation machine that bridge is installed is to use comparatively general a kind of technology, in the construction in particular for concrete prefabricated beam, but adopt the overall package and the mobile more complicated of bridge formation machine in the construction of bridge formation machine, and the whole center of gravity of case beam is higher during the transport case beam, is unfavorable for case beam stable in moving.
Summary of the invention
Have problems in order to solve in the bridge box and beam section installation process, the quick roller that the utility model provides a kind of large bridge that usefulness is installed, be beneficial in the process that bridge is installed easy, quick, safe, and can load-carrying greater weight bridge box and beam elementary section.
For solving the problems of the technologies described above, the technical scheme that the utility model adopted provides the quick roller that a kind of large bridge is installed usefulness, wherein: this quick roller includes a plurality of identical rollers, the roller bearing pin of each roller is centered around the periphery of roller shaft core by carrier bar, form a ring-type integral body, and can be round the level and smooth rolling of roller shaft core;
Described roller shaft core is fixed in the outer casing frame rear and front end, and links into an integrated entity, and outer casing frame is by connecting the middle part that bearing pin is connected balancing stand.
Described balancing stand includes upper plate, and the bottom of upper plate is provided with two baffle plates, and two baffle plates are vertical with upper plate, with upper plate center symmetry.
Described outer casing frame is connected on two baffle plates of balancing stand bottom by the connection bearing pin.
The bearing pin that is connected of described balancing stand and outer casing frame connects, and its matched in clearance is H7/g6, can freely rotate between balancing stand and the outer casing frame.
The beneficial effects of the utility model are:
1. adopt the mode of roller more than a group, solved single roller stress problem of smaller, every group of quick roller can bear the weight of 80t, adopts 4～6 groups of quick rollers can satisfy the requirement of erection weight when general bridge case beam section is installed.
2. workable, can carry out the fixing mode of bolt by through hole above the quick roller balancing stand and case beam, also can adopt with the mode of case beam base plate (embedded board) welding and fix, adopt the mode of rolling friction, reduced the resistance during the case beam moves, being convenient to the case beam can install fast, be specially adapted to that span is big, the installation of the heavy steel structure bridge of quality, cross in the bridge installation exercise that geological conditionss such as river, shoal can't adopt large-scale hoisting machinery down and all have extraordinary effect.
Description of drawings
Fig. 1 is the front view of quick roller of the present utility model;
Fig. 2 is the left view of quick roller of the present utility model;
Fig. 3 is the vertical view of quick roller of the present utility model.
Among the figure:
1. balancing stand 2. outer casing frames 3. carrier bars 4. rollers
5. roller bearing pin 6. roller shaft cores 7. connect bearing pin
The specific embodiment
The quick roller structure of large bridge of the present utility model being installed usefulness below in conjunction with accompanying drawing is illustrated.
As Figure 1-3, large bridge of the present utility model is installed the quick roller of usefulness, this quick roller includes a plurality of identical rollers 4, the roller bearing pin 5 of each roller 4 is centered around the periphery of roller shaft core 6 by carrier bar 3, form a ring-type integral body, and can be round the level and smooth rolling of roller shaft core 6; Described roller shaft core 6 is fixed in outer casing frame 2 rear and front ends, and links into an integrated entity, and outer casing frame 2 is by connecting the middle part that bearing pin 7 is connected balancing stand 1.Described balancing stand 1 includes upper plate, and the bottom of upper plate is provided with two baffle plates, and two baffle plates are vertical with upper plate, with upper plate center symmetry.Outer casing frame 2 is connected on two baffle plates of balancing stand 1 bottom by connecting bearing pin 7.The bearing pin 7 of being connected of described balancing stand 1 and outer casing frame 2 connects, and its matched in clearance is H7/g6, through look into the standard of tolerance numerical tabular as can be known gap value for+0.01mm～+ 0.059mm, can freely rotate between balancing stand 1 and the outer casing frame 2.
As shown in Figure 1, a plurality of identical rollers 4 are connected to become an integral body by roller bearing pin 5 and carrier bar 3 round roller shaft core 6.
As shown in Figure 2, roller shaft core 6 links into an integrated entity with the mode of outer casing frame 2 by welding, and outer casing frame 2 links into an integrated entity with balancing stand 1 by connecting bearing pin 7, and its matched in clearance is H7/g6, can freely rotate between balancing stand 1 and the outer casing frame 2.
As shown in Figure 3, at first a plurality of identical rollers 4 and roller shaft core 6 are all adopted carburizing, Quenching Treatment, periphery carries out Precision Machining.
To adopt carrier bars 3 to couple together round a roller shaft core 6 through a plurality of identical roller 4 of over carburizing, Quenching Treatment, roller shaft core 6 and outer casing frame 2 are welded into as a whole, this is whole fixing with the balancing stand 1 on top by connecting bearing pin 7.Six through holes are arranged on the top of balancing stand 1, when the bridge box and beam section is installed, 4～6 groups of quick rollers are positioned over below the case beam section that will install.Determine the quantity of quick roller according to the quantity of case beam section, through hole and the preformed hole on the case beam by balancing stand 1 top adopt high-strength bolt to be connected and fixed, drive this quick roller by electric winch and on the track that arranges in advance, roll, finish the installation work of bridge box and beam section with this.
The a whole set of quick roller that connects as one, through hole and bridge box and beam elementary section by balancing stand 1 top adopt high-strength bolt to be connected and fixed, perhaps with the upper plate of balancing stand 1 and the base plate of bridge elementary section, the mode that is the pre-embedded steel slab welding of steel bridge beam base plate or precast concrete beam is fixed, and the transportation installation work of bridge box and beam section is carried out in the back in pre-track.The a whole set of quick roller that connects as one, through hole and bridge box and beam elementary section by balancing stand 1 top adopt high-strength bolt to be connected and fixed, perhaps with the upper plate of balancing stand 1 and the base plate of bridge elementary section, the mode that is the pre-embedded steel slab welding of steel bridge beam base plate or precast concrete beam is fixed, structure is to adopt carrier bars 3 to couple together round a roller shaft core 6 on the roller 4 of 16 diameter 48mm, and roller shaft core 6 and outer casing frame 2 are welded into as a whole, again that this is whole fixing with the balancing stand 1 on top by connecting bearing pin 7.When load-carrying bridge box and beam section was mobile, every group stressed by a plurality of 4 whiles of roller, adopts carrier bars 3 to connect the rolling of a plurality of rollers 4 of the control of can make things convenient for, coordinating around roller shaft core 6 on a plurality of rollers 4.
Claims (4)
1. a large bridge is installed the quick roller of usefulness, it is characterized in that: this quick roller includes a plurality of identical rollers (4), the roller bearing pin (5) of each roller (4) is centered around the periphery of roller shaft core (6) by carrier bar (3), form a ring-type integral body, and can be round the level and smooth rolling of roller shaft core (6);
Described roller shaft core (6) is fixed in outer casing frame (2) rear and front end, and links into an integrated entity, and outer casing frame (2) is by connecting the middle part that bearing pin (7) is connected balancing stand (1).
2. large bridge according to claim 1 is installed the quick roller of usefulness, and it is characterized in that: described balancing stand (1) includes upper plate, and the bottom of upper plate is provided with two baffle plates, and two baffle plates are vertical with upper plate, with upper plate center symmetry.
3. large bridge according to claim 1 is installed the quick roller of usefulness, it is characterized in that: outer casing frame (2) is connected on two baffle plates of balancing stand (1) bottom by connection bearing pin (7).
4. large bridge according to claim 1 is installed the quick roller of usefulness, it is characterized in that: the bearing pin (7) that is connected of described balancing stand (1) and outer casing frame (2) connects, and its matched in clearance is H7/g6, can freely rotate between balancing stand (1) and the outer casing frame (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200968724U CN201990951U (en) | 2011-04-02 | 2011-04-02 | Fast roller wheel for installation of large bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200968724U CN201990951U (en) | 2011-04-02 | 2011-04-02 | Fast roller wheel for installation of large bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201990951U true CN201990951U (en) | 2011-09-28 |
Family
ID=44667440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200968724U Expired - Lifetime CN201990951U (en) | 2011-04-02 | 2011-04-02 | Fast roller wheel for installation of large bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201990951U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182148A (en) * | 2011-04-02 | 2011-09-14 | 天津天佳市政公路工程有限公司 | Quick rollers for large bridge installation |
-
2011
- 2011-04-02 CN CN2011200968724U patent/CN201990951U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182148A (en) * | 2011-04-02 | 2011-09-14 | 天津天佳市政公路工程有限公司 | Quick rollers for large bridge installation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110928 |