CN219045100U - Rear landing leg of bridge girder erection machine - Google Patents
Rear landing leg of bridge girder erection machine Download PDFInfo
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- CN219045100U CN219045100U CN202222627464.8U CN202222627464U CN219045100U CN 219045100 U CN219045100 U CN 219045100U CN 202222627464 U CN202222627464 U CN 202222627464U CN 219045100 U CN219045100 U CN 219045100U
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- erection machine
- bridge girder
- girder erection
- bridge
- driving system
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Abstract
The utility model discloses a rear supporting leg of a bridge girder erection machine, which comprises a hinged support, an outer sleeve column, an inner sleeve column, a connecting frame, a lower beam, a telescopic adjusting device, a traveling wheel set, a transverse moving mechanism, an inclined strut and a first driving system.
Description
Technical Field
The utility model relates to the technical field of bridge construction, in particular to a rear supporting leg of a bridge girder erection machine.
Background
Along with the vigorous development of bridge construction in the global scope, the demand for developing bridge erection construction equipment (bridge girder erection machine) is increasing; the rear supporting leg of the bridge girder erection machine is used as one of main bearing members of the bridge girder erection machine to play a role in the design of the bridge girder erection machine.
The rear supporting leg is mainly used for providing support during bridging operation in the prior art, and meanwhile, the requirement of allowing a girder transporting vehicle to pass through is met, and the girder transporting vehicle can be separated from a bridge deck during passing through holes, so that the passing through holes are realized. Therefore, the rear support leg needs to have a telescopic function and a part of the rear support leg also needs to have a rotating function.
Patent number CN110607760a proposes a bridge girder erection machine landing leg transition folding mechanism, which realizes the extension and retraction of the landing leg through a first extension and retraction cylinder, and realizes the rotation of the landing leg through a second extension and retraction cylinder. However, the mechanism has the problems of complex structure, large occupied space and the like.
Disclosure of Invention
The present utility model aims to solve the technical problems in the related art at least to some extent.
Therefore, the embodiment of the utility model provides the rear supporting leg of the bridge girder erection machine, which has the advantages of realizing the functions of stretching and rotating, along with simple structure and small occupied space.
The rear supporting leg of the bridge girder erection machine comprises a hinged support, an outer sleeve column, an inner sleeve column, a connecting frame, a lower cross beam, a telescopic adjusting device, a running wheel set, a transverse moving mechanism, an inclined supporting rod and a first driving system.
The two outer columns are respectively arranged on two sides of a main frame of the bridge girder erection machine, the outer columns are rotationally connected with a main girder of the bridge girder erection machine through the hinged support, the connecting frame is arranged between the two outer columns, two ends of the connecting frame are respectively connected with the two outer columns, each outer column is sleeved with an inner column, the inner columns are in sliding fit with the corresponding outer columns, the lower cross beam is respectively connected with two ends of the inner columns, two ends of the telescopic adjusting device are respectively connected with the lower cross beam and the connecting frame, and the running wheel set and the transverse moving mechanism are respectively arranged below the lower cross beam. And two ends of the inclined stay bar are respectively connected with the rear supporting leg of the bridge girder erection machine and the main girder of the bridge girder erection machine, and the first driving system drives the outer sleeve column to rotate around the hinged support.
In some embodiments, the diagonal braces are rotatably coupled to the bridge girder of the bridge girder erection machine.
In some embodiments, a second driving system is further provided on the girder of the bridge girder erection machine, and the second driving system is used for driving the diagonal brace to rotate.
In some embodiments, the outer sleeve rotates in opposition to the diagonal brace.
In some embodiments, the two running wheel sets are respectively arranged at two sides of the lower beam, the traversing mechanism is arranged between the running wheel sets, and the traversing mechanism and the running wheel sets are used for realizing that the rear supporting leg of the bridge girder erection machine moves or rotates in the horizontal direction relative to the bridge deck.
The utility model has the beneficial effects that:
1. the rear supporting leg of the bridge girder erection machine can realize the functions of extension and rotation, and is hollow and rotated and folded when the bridge girder erection machine feeds girders.
2. The support leg support state and the rotary folding state can be converted by installing or removing the diagonal brace, and the operation is simple.
Drawings
FIG. 1 is a schematic view of a rear leg of a bridge girder erection machine according to an embodiment of the present utility model;
FIG. 2 is a front view of a rear leg of a bridge girder erection machine according to the embodiment of the present utility model;
fig. 3 is a side view of a rear leg of a bridge girder erection machine according to the embodiment of the utility model.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
The rear landing leg of the bridge girder erection machine comprises: the telescopic device comprises a hinged support 1, an outer sleeve column 2, an inner sleeve column 3, a connecting frame 4, a lower cross beam 5, a telescopic adjusting device 6, a running wheel set 7, a traversing mechanism 8, an inclined stay bar 9 and a first driving system 10.
Specifically, as shown in fig. 1 and 2, two hinge supports 1 are respectively arranged at the bottom ends of the main beams of the bridge girder erection machine and are fixedly connected to the main beams. Each hinged support 1 is rotatably connected with one outer sleeve column 2, two outer sleeve columns 3 are distributed in parallel at intervals, a connecting frame 4 is arranged between the two outer sleeve columns, and two ends of the connecting frame 4 are fixedly connected with the two outer sleeve columns 2 respectively. Each outer sleeve column 2 is slidably matched with one inner sleeve column 3, and a lower cross beam 5 is fixedly connected with the bottom ends of the two inner sleeve columns 3 respectively. A telescopic adjusting device 6 is arranged between the lower cross beam 5 and the connecting frame 4, and the telescopic adjusting device 6 is a telescopic oil cylinder and is used for driving the inner sleeve column 3 to move along the extending direction of the outer sleeve column 2. The first driving system 10 is a winch, which is arranged on the main beam and is connected with the rear landing leg through a steel wire and a movable pulley, and is used for driving the rear landing leg to rotate anticlockwise around the hinged support 1.
Each outer sleeve column 2 is connected with an inclined strut 9, one end of the inclined strut 9 is detachably and fixedly connected with the outer sleeve column 2 through a pin, and the other end of the inclined strut 9 is rotatably connected with the girder of the bridge girder erection machine. The main beam is provided with a second driving system 11, and the second driving system 11 is an electric chain hoist and is hinged with the diagonal brace 9. The second driving system 11 is used for driving the diagonal brace 9 to rotate in the same direction as the rear leg.
The bottom end of the lower cross beam 5 is provided with two running wheel groups 7 which are distributed at intervals, a transverse moving mechanism 8 is arranged between the two running wheel groups 7, and the transverse moving, longitudinal moving and horizontal rotating of the rear supporting leg can be realized through the combined action of the transverse moving mechanism 8 and the running wheel box 7.
The present embodiment is not limited in any way by the shape, material, structure, etc. of the present utility model, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical substance of the present utility model are all included in the scope of protection of the technical solution of the present utility model.
In the description of the present utility model, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the protection of the present utility model.
If the terms "first," "second," etc. are used herein to define a part, those skilled in the art will recognize that: the use of "first" and "second" is for convenience only as well as for simplicity of description, and nothing more than a particular meaning of the terms is intended to be used unless otherwise stated.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may be modified or some technical features may be replaced with others, which may not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (5)
1. The utility model provides a landing leg behind bridge crane which characterized in that includes:
the telescopic device comprises a hinged support, outer sleeves, inner sleeves, a connecting frame, a lower beam, a telescopic adjusting device, running wheel sets, a transverse moving mechanism, inclined supporting rods and a first driving system, wherein the two outer sleeves are respectively arranged on two sides of a main frame of the bridge girder erection machine, the outer sleeves are rotatably connected with the main girder of the bridge girder erection machine through the hinged support, the connecting frame is arranged between the two outer sleeves, two ends of the connecting frame are respectively connected with the two outer sleeves, each outer sleeve is sleeved with the inner sleeve, the inner sleeves are correspondingly matched with the corresponding outer sleeves in a sliding manner, the lower beam is respectively connected with two ends of the inner sleeves, two ends of the telescopic adjusting device are respectively connected with the lower beam and the connecting frame, the running wheel sets and the transverse moving mechanism are respectively arranged below the lower beam, two ends of the inclined supporting rods are respectively connected with the rear supporting legs of the bridge girder erection machine and the main girder of the bridge girder erection machine, and the first driving system drives the outer sleeves to rotate around the hinged support.
2. The rear leg of the bridge girder erection machine according to claim 1, wherein the diagonal brace is rotatably connected to the main girder of the bridge girder erection machine.
3. The rear landing leg of the bridge girder erection machine according to claim 2, further comprising a second driving system, wherein the second driving system is arranged on a main girder of the bridge girder erection machine, and the second driving system is used for driving the diagonal brace to rotate.
4. A rear leg of a bridge girder erection machine according to claim 3, wherein the outer column is rotated in opposition to the diagonal strut.
5. The rear landing leg of the bridge girder erection machine according to claim 1, wherein two traveling wheel sets are respectively arranged on two sides of the lower beam, the traversing mechanism is arranged between the traveling wheel sets, and the traversing mechanism and the traveling wheel sets are used for realizing that the rear landing leg of the bridge girder erection machine moves or rotates in a horizontal direction relative to a bridge deck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222627464.8U CN219045100U (en) | 2022-10-08 | 2022-10-08 | Rear landing leg of bridge girder erection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222627464.8U CN219045100U (en) | 2022-10-08 | 2022-10-08 | Rear landing leg of bridge girder erection machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219045100U true CN219045100U (en) | 2023-05-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222627464.8U Active CN219045100U (en) | 2022-10-08 | 2022-10-08 | Rear landing leg of bridge girder erection machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219045100U (en) |
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2022
- 2022-10-08 CN CN202222627464.8U patent/CN219045100U/en active Active
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