CN211973130U - Bridge girder erection machine suitable for small-radius bridge construction - Google Patents
Bridge girder erection machine suitable for small-radius bridge construction Download PDFInfo
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- CN211973130U CN211973130U CN202020185709.4U CN202020185709U CN211973130U CN 211973130 U CN211973130 U CN 211973130U CN 202020185709 U CN202020185709 U CN 202020185709U CN 211973130 U CN211973130 U CN 211973130U
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Abstract
The utility model discloses the application discloses a bridge girder erection machine suitable for construction of small diameter bridge. The bridge girder erection machine suitable for small-radius bridge construction comprises a main girder, a middle supporting leg, a middle auxiliary supporting leg, a transverse moving wheel box and a middle supporting leg transverse moving motor; the main beam is connected with the middle supporting leg and the middle auxiliary supporting leg through the transverse moving wheel box, and a stretcher beam and a bent beam of the supporting leg are connected through a positioning pin; the support leg transverse moving motor drives the middle support leg to move, and drives the main beam to deflect by taking the middle auxiliary support leg as a fulcrum and taking the middle support leg transverse moving wheel box as a rotating radius. The utility model discloses the application has been solved because the unable transfer of direction that carries on of conventional bridge girder erection machine, and the technical problem that the unable roof beam slab that realizes the minor radius of bridge girder erection machine that causes erects.
Description
Technical Field
The utility model discloses the application relates to bridge culvert engineering construction field particularly, relates to a bridge girder erection machine suitable for construction of small diameter bridge.
Background
With the increasing emphasis on the linear appearance and the influence of geographical conditions in highway engineering, the linear design of bridges is more and more extensive due to the adoption of small curve radii, and in most cases, the cast-in-place concrete structure replaces a prefabricated structure on a small-radius bridge, but the highway engineering in mountainous areas has the characteristics of pier column height, complex terrain, poor safety and stability of the cast-in-place support, high cost and the like, and the prefabricated structure has to be adopted, so that the erection of small-radius beam plates becomes a difficult point in construction.
In the construction process, the turning radius of the small-radius girder erection machine is small due to the bridge structure, and the girder erection machine can not feed the girder due to the fact that the machine body is long and the width of the bridge deck is insufficient when the small-radius curve section is constructed. When the bridge girder erection machine normally travels across the span, the front supporting leg cannot fall on the next span cover beam. Therefore, the erection of the small-radius beam plate needs to have a certain rotation function. The conventional bridge girder erection machine cannot adjust the direction, cannot meet the construction requirement of the small-radius beam, and cannot realize the erection of the small-radius beam slab.
SUMMERY OF THE UTILITY MODEL
The utility model provides a main aim at of application provides a bridge girder erection machine suitable for small radius bridge construction to solve because the unable transfer of direction of carrying on of conventional bridge girder erection machine, and the bridge girder erection machine that causes can't realize the technical problem that the beam slab erect of small radius.
In order to achieve the purpose, the bridge girder erection machine is suitable for construction of small-radius bridges.
According to the utility model discloses a bridge girder erection machine suitable for construction of minor radius bridge includes:
the main beam, the middle support leg, the middle auxiliary support leg, the transverse moving wheel box and the middle support leg transverse moving motor;
the main beam is connected with the middle supporting leg and the middle auxiliary supporting leg, and a stretcher beam and a bent beam of the supporting leg are connected through a positioning pin;
the support leg transverse moving motor drives the middle support leg to move, and the main beam deflects by taking the middle auxiliary support leg as a fulcrum and taking the middle support leg transverse moving wheel box as a rotating radius.
Further, the traverse wheel box is a double-side wheel rim.
Furthermore, a steel plate is arranged between the bent beam and the stretcher beam.
Further, the middle support leg transverse moving motor is provided with a special motor box.
The utility model discloses in the application embodiment, adopt and carry out the mode that improves to the bridge girder erection machine structure, the angle adjustability that has improved well landing leg is connected through the locating pin to the stretcher roof beam and the camber beam of well landing leg, and well landing leg is autonomous movement under landing leg sideslip motor's drive simultaneously, and the well landing leg that has reached drives horizontal wheel case and removes the purpose to realized horizontal wheel case and driven the girder with well auxiliary leg is the fulcrum to well landing leg sideslip wheel case carries out the technological effect that deflects for radius of rotation, and then has solved because the unable transfer of direction of carrying on of conventional bridge girder erection machine, and the bridge girder erection machine that causes can't realize the technical problem that the beam slab erected of small radius.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. The drawings of the illustrative embodiments of the present invention and their description are for the purpose of illustrating the invention and are not to be construed as unduly limiting the scope of the invention. In the drawings:
fig. 1 is a view showing a construction of a leg of a conventional bridge girder erection machine according to an embodiment of the present invention;
fig. 2 is a structural diagram of a support leg in a modified bridge girder erection machine according to an embodiment of the present invention.
Reference numerals
1: a stretcher bar; 2: rotating the disc; 3: bending the beam; 4: positioning pins; 5: a box girder structure.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the present invention is described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and obviously, the described embodiments are only embodiments of the present invention, not all embodiments. Based on the embodiments in the application of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present application described herein may be made. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present application can be understood by those of ordinary skill in the art as a matter of context.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as a matter of case.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.
The utility model relates to a bridge girder erection machine suitable for small-radius bridge construction, which comprises a main girder, a middle support leg, a middle auxiliary support leg, a transverse moving wheel box and a middle support leg transverse moving motor; the main beam is connected with the middle supporting leg and the middle auxiliary supporting leg through the transverse moving wheel box, and a stretcher beam and a bent beam of the supporting leg are connected through a positioning pin; the support leg transverse moving motor drives the middle support leg to move, and drives the main beam to deflect by taking the middle auxiliary support leg as a fulcrum and taking the middle support leg transverse moving wheel box as a rotating radius.
As shown in fig. 1, the conventional stretcher beam 1 and the rotating disk 2 are fixed by bolts (two or more) so that the stretcher beam 1 and the rotating disk 2 cannot rotate relative to each other, and the stretcher beam 1 has an open box structure, is weak in rigidity and cannot bear axial force caused by rotation.
As shown in fig. 2, the utility model discloses in the application after improving conventional above-mentioned structure setting, stretcher beam 1 passes through locating pin 4 with camber beam 3 and is connected, camber beam 3 with go up the plane between stretcher beam 1 and level smooth (scribble cassia oil on the steel sheet, increase the slidability), can rotate certain angle (this angle depends on girder lower chord track and wheel tread contained angle) under the effect of radial force, case girder construction 5, aspect ratio reasonable in design, and the rigidity is very big, can be used for transmitting the axial force because of rotatory production.
The conventional longitudinal movement wheel box is a single-side wheel rim, and a longitudinal movement track is welded on the lower chord. Compared with the rims on the two sides, the rim on the single side reduces the stress by half when the driving motor pushes the main beam to rotate. Meanwhile, the main beam is pushed to have large and concentrated rotating force, and the side edges of the lower-chord main timber are often gnawed to be damaged.
The utility model discloses the application is indulged after the repacking and is moved two side rims of wheel case the utility model discloses in the preferred embodiment of the application, the lower chord is welded and is indulged the square steel track that moves, material Q345B, the Q235B of girder structure, each item mechanical properties is more superior. When the driving motor pushes the main beam to rotate, each wheel can generate axial force to the main beam to prevent the side edge of the main material of the lower chord of the main beam from being gnawed and damaged, thereby protecting the main beam structure.
Conventional bridge girder erection machine sideslip action is that preceding well landing leg goes on simultaneously, the utility model discloses technical scheme in the application has been equipped with special electrical apparatus case, landing leg sideslip motor in can going alone.
The utility model discloses in the embodiment of the application, the frame bridge crane suitable for small radius bridge construction utilizes landing leg sideslip motor to make well landing leg inwards go for the frame bridge crane girder uses well auxiliary leg as the fulcrum, uses well landing leg sideslip wheel case as radius of rotation, and the girder makes the girder use the center pin of well landing leg load beam to make the small-angle rotation with the help of the axial force of indulging the double round reason production of moving the wheel case, thereby accomplishes the deflection of whole girder angle.
The utility model discloses in the application embodiment, adopt and carry out the mode that improves to the bridge girder erection machine structure, the angle adjustability that has improved well landing leg is connected through the locating pin to the stretcher roof beam and the camber beam of well landing leg, and well landing leg is autonomous movement under landing leg sideslip motor's drive simultaneously, and the well landing leg that has reached drives horizontal wheel case and removes the purpose to realized horizontal wheel case and driven the girder with well auxiliary leg is the fulcrum to well landing leg sideslip wheel case carries out the technological effect that deflects for radius of rotation, and then has solved because the unable transfer of direction of carrying on of conventional bridge girder erection machine, and the bridge girder erection machine that causes can't realize the technical problem that the beam slab erected of small radius.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a frame bridge crane suitable for construction of small radius bridge which characterized in that includes at least:
the main beam, the middle support leg, the middle auxiliary support leg, the transverse moving wheel box and the middle support leg transverse moving motor;
the main beam is connected with the middle supporting leg and the middle auxiliary supporting leg through the transverse moving wheel box, and a stretcher beam and a bent beam of the supporting leg are connected through a positioning pin;
the support leg transverse moving motor drives the middle support leg to move, and drives the main beam to deflect by taking the middle auxiliary support leg as a fulcrum and taking the middle support leg transverse moving wheel box as a rotating radius.
2. A bridge girder erection machine suitable for small radius bridge construction as claimed in claim 1, wherein the traverse wheel box is a double-sided rim.
3. A bridge girder erection machine suitable for small-radius bridge construction according to claim 1, wherein a steel plate is provided between the bending beam and the spreader beam.
4. A bridge girder erection machine suitable for small-radius bridge construction according to any one of claims 1 to 3, wherein the middle leg traversing motor is provided with a special motor box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020185709.4U CN211973130U (en) | 2020-02-19 | 2020-02-19 | Bridge girder erection machine suitable for small-radius bridge construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020185709.4U CN211973130U (en) | 2020-02-19 | 2020-02-19 | Bridge girder erection machine suitable for small-radius bridge construction |
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| CN211973130U true CN211973130U (en) | 2020-11-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111188279A (en) * | 2020-02-19 | 2020-05-22 | 中交路桥建设有限公司 | Bridge girder erection machine suitable for small-radius bridge construction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111188279A (en) * | 2020-02-19 | 2020-05-22 | 中交路桥建设有限公司 | Bridge girder erection machine suitable for small-radius bridge construction |
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