CN217997824U - Front support device of bridge girder erection machine - Google Patents
Front support device of bridge girder erection machine Download PDFInfo
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- CN217997824U CN217997824U CN202121699163.5U CN202121699163U CN217997824U CN 217997824 U CN217997824 U CN 217997824U CN 202121699163 U CN202121699163 U CN 202121699163U CN 217997824 U CN217997824 U CN 217997824U
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- driving motor
- mounting bar
- bridge girder
- girder erection
- erection machine
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Abstract
The utility model relates to a preceding strutting arrangement of frame bridge crane, include: a longitudinal guide beam; the support bar is provided with a connecting block which is connected with the longitudinal guide beam in a sliding way; the driving assembly comprises a first driving motor and a second driving motor, the output end of the first driving motor drives the longitudinal guide beam to slide relative to the connecting block, and the output end of the second driving motor drives the connecting block to slide relative to the longitudinal guide beam; the lifting assembly is fixedly connected to the supporting bars; the mounting bar is movably connected with the lifting assembly so as to enable the mounting bar to realize lifting movement. The utility model discloses simple structure, convenient operation can realize the construction of erectting to small radius curve bridge, has satisfied interval and the skew angle of various differences between two piers.
Description
Technical Field
The utility model relates to a bridge crane technical field especially relates to a preceding strutting arrangement of bridge crane.
Background
In the process of erecting steel beam type bridges such as steel arch bridges, cable-stayed bridges, suspension bridges and the like, a bridging machine is needed to be arranged between piers, then a hoisting device on the bridging machine is used for lifting a steel beam, and the steel beam is erected on the corresponding pier, however, in the process of erecting curved bridges, when the curve radius is small, the distance between the front pier and the rear pier is different, and the axes of the piers are in an oblique relation. However, the front support device of the ordinary bridge girder erection machine is generally fixedly arranged at the front end of the longitudinal guide beam, and the position and the angle of the front support device and the longitudinal guide beam cannot be adjusted, when the ordinary bridge girder erection machine passes through a hole on a small-radius bridge, after the front support device reaches the upper part of the front cover beam, the transverse moving track of the front support device forms an included angle of 18 degrees with the axis of the cover beam, so that the front support leg cannot be normally positioned, the bridge erection is inconvenient, and the construction speed and the construction quality are affected.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems or at least partially solve the technical problems, the application provides a front supporting device of a bridge erecting machine.
The application provides a preceding strutting arrangement of frame bridge crane includes:
a longitudinal guide beam;
the support bar is provided with a connecting block which is connected with the longitudinal guide beam in a sliding way;
the driving assembly comprises a first driving motor and a second driving motor, the output end of the first driving motor drives the longitudinal guide beam to slide relative to the connecting block, and the output end of the second driving motor drives the connecting block to slide relative to the longitudinal guide beam;
the lifting assembly is fixedly connected to the supporting bars;
the mounting bar is movably connected with the lifting assembly so as to enable the mounting bar to realize lifting movement;
preferably, the upper surface of connecting block is equipped with the slide rail, the lower surface of vertical nose girder be equipped with slide rail sliding connection's slider.
Preferably, lifting unit includes crossbeam, first perpendicular roof beam, second perpendicular roof beam and telescopic link, the lower surface of crossbeam with mounting bar swing joint, first perpendicular roof beam with the second erect the lower extreme of roof beam all with the last fixed surface of crossbeam is connected, be equipped with the confession on the support bar first perpendicular roof beam with the second erects the vertical through-hole that passes of roof beam, the telescopic link is located first perpendicular roof beam with between the roof beam is erected to the second, and fixes the upper surface of crossbeam, the output of telescopic link with crossbeam fixed connection.
Preferably, the lower surface of support bar is equipped with first connecting piece, the upper surface of crossbeam is equipped with the second connecting piece, the upper end of telescopic link with first connecting piece fixed connection, the output of telescopic link with second connecting piece fixed connection.
Preferably, the front supporting device of the bridge girder erection machine further comprises a universal joint, one end of the universal joint is connected with the lower surface of the cross beam, and the other end of the universal joint is connected with the mounting bar.
Preferably, the telescopic rod is located at a central position between the first vertical beam and the second vertical beam.
Preferably, the outer sides of the lower ends of the first vertical beam and the second vertical beam are provided with reinforcing strips, and the reinforcing strips are fixedly connected with the cross beam.
Preferably, the front supporting device of the bridge girder erection machine further comprises a transverse moving assembly for driving the mounting bar to move transversely, the transverse moving assembly comprises a transverse moving rail, a third driving motor, a moving wheel and a box body, the upper surface of the box body is fixedly connected with the mounting bar, the moving wheel is arranged in the box body and is slidably connected with the transverse moving rail, the third driving motor is fixed on the side edge of the box body, and the output end of the third driving motor extends into the box body and is in transmission connection with the moving wheel.
Preferably, the lower surface of mounting bar is equipped with first installed part, the upper surface of box is equipped with the second installed part, first installed part with all be equipped with the mounting hole of mutually supporting on the second installed part.
Preferably, the width of the traverse rail is greater than the width of the mounting bar.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:
connect on the connecting block with indulging nose girder slidable, adopt lifting unit to upwards mention the mounting bar, make the mounting bar break away from the contact with the pier, later rethread first driving motor and second driving motor drive respectively indulge the nose girder and the connecting block slides, make the mounting bar remove the top of pier, rethread lifting unit drive mounting bar downstream, make the mounting bar fix on the pier, it slides for the connecting block to indulge the nose girder through first driving motor drive at last, move the place ahead of next pier with the indulging nose girder of latter half section, thereby accomplish and stride the operation, moreover, the steam generator is simple in structure, and convenient for operation, can realize the construction of erectting to little radius curve, various different interval and oblique crossing angle between two piers have been satisfied.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
In the drawings:
FIG. 1 is a schematic view of the connection between a front support device and a longitudinal guide beam of the bridge girder erection machine of the present invention;
FIG. 2 is a schematic view of a front supporting device of the bridge girder erection machine of the present invention;
FIG. 3 is a front view of the front supporting device of the bridge girder erection machine of the present invention;
FIG. 4 is an enlarged schematic view at A in FIG. 3;
reference numbers: 1. a longitudinal guide beam; 2. a front support device; 21. a supporting strip; 22. mounting a bar; 23. a lifting assembly; 231. a cross beam; 232. a first vertical beam; 233. a second vertical beam; 234. a telescopic rod; 235. a first connecting member; 236. a second connecting member; 24. a drive assembly; 241. a first drive motor; 242. a second drive motor; 25. a universal joint; 26. a traversing assembly; 261. traversing the track; 262. a box body; 263. a third drive motor; 264. a moving wheel; 265. a first mounting member; 266. a second mount; 27. connecting blocks; 28. a slide rail; 29. a slider;
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "upper", "lower", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are configured and operated in specific directions based on the directions or positional relationships shown in the drawings, and are only for convenience of describing the present invention, but do not indicate that the device or element referred to must have a specific direction, and thus, should not be construed as limiting the present invention.
It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or intervening elements may also be present. The terms "first", "second", "third", etc. are merely for convenience in describing the present technical solution and are not to be construed as indicating or implying any relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
As shown in fig. 1 to 4, in an embodiment of the front supporting device 2 of the bridge girder erection machine of the present invention, the front supporting device 2 includes: longitudinal guide beam 1, support bar 21, driving assembly 24, lifting assembly 23, mounting bar 22 and traverse assembly 26,
the connecting block 27 connected with the longitudinal guide beam 1 in a sliding manner is arranged on the supporting bar 21, the driving assembly 24 comprises a first driving motor 241 and a second driving motor 242, the output end of the first driving motor 241 drives the longitudinal guide beam 1 to slide relative to the connecting block 27, and the output end of the second driving motor 242 drives the connecting block 27 to slide relative to the longitudinal guide beam 1; the lifting assembly 23 is fixedly connected to the supporting bar 21; and the mounting bar 22 is movably connected with the lifting assembly 23, so that the mounting bar 22 can realize lifting motion.
With reference to the above-described structure, the connecting block 27 is disposed on the supporting bar 21, and the longitudinal guide beam 1 is slidably connected to the connecting block 27, in the process of erecting the bridge, the mounting bar 22 is fixed on the bridge pier to erect the bridge, when the bridge needs to be moved to the next bridge pier to erect the bridge, the lifting assembly 23 lifts up the mounting bar 22, so that the mounting bar 22 is separated from the bridge pier, then the first driving motor 241 and the second driving motor 242 respectively drive the longitudinal guide beam 1 and the connecting block 27 to slide, so that the mounting bar 22 moves to the front end of the longitudinal guide beam 1, then the longitudinal guide beam 1 is driven by the middle support device to move toward the next bridge pier, so that the mounting bar 22 moves to the top of the next bridge pier, the lifting assembly 23 drives the mounting bar 22 to move downward, so that the mounting bar 22 is fixed on the bridge pier, finally the longitudinal guide beam 1 is driven by the first driving motor to slide relative to the connecting block 27, so that the longitudinal guide beam 1 at the rear half section is moved to the front of the next bridge pier, thereby completing the crossing operation, the structure is simple, and the operation is convenient, and the bridge can be erected between the skew curves and the bridge with different construction angles and the bridges 241.
In an embodiment of the present application, the upper surface of the connecting block 27 is provided with a slide rail 28, the lower surface of the longitudinal guide beam 1 is provided with a slide block 29 slidably connected with the slide rail 28, and the slide block 29 and the slide rail 28 are mutually matched to realize the movable connection between the longitudinal guide beam 1 and the connecting block 27, thereby facilitating the subsequent over-span operation.
In an embodiment of the present application, lifting unit 23 includes crossbeam 231, first perpendicular roof beam 232, second perpendicular roof beam 233 and telescopic link 234, the lower surface and the mounting bar 22 swing joint of crossbeam 231, the lower extreme of first perpendicular roof beam 232 and second perpendicular roof beam 233 all is connected with the upper surface fixed of crossbeam 231, be equipped with the through-hole that supplies first perpendicular roof beam 232 and the vertical passing of second perpendicular roof beam 233 on the support bar 21, telescopic link 234 is located between first perpendicular roof beam 232 and the second perpendicular roof beam 233, and fix the upper surface at crossbeam 231, the output and the crossbeam 231 fixed connection of telescopic link 234.
It should be noted that, when the operation is striden to needs, telescopic link 234 drive crossbeam 231 upward movement, because crossbeam 231 and mounting bar 22 swing joint, make mounting bar 22 follow crossbeam 231 upwards and mention, thereby realize breaking away from of mounting bar 22 and pier, be convenient for follow-up longitudinal guide beam 1 drives mounting bar 22 and removes, when removing the top of next pier, telescopic link 234 drive crossbeam 231 downstream, and then drive mounting bar 22 downstream, thereby make mounting bar 22 fix to the pier on, accomplish and stride the operation, moreover, the steam generator is simple in structure, and convenient for operation.
Specifically, the lower surface of the supporting bar 21 is provided with a first connecting member 235, the upper surface of the cross beam 231 is provided with a second connecting member 236, the upper end of the telescopic rod 234 is fixedly connected with the first connecting member 235, and the output end of the telescopic rod 234 is fixedly connected with the second connecting member 236. The connection stability is ensured by providing the first and second connectors 235 and 236 on the support bar 21 and the cross bar 231, respectively, to be connected with the telescopic bar 234.
In one embodiment of the present application, the front support 2 of the bridge girder erection machine further includes a universal joint 25, and one end of the universal joint 25 is connected to the lower surface of the cross beam 231 and the other end is connected to the mounting bar 22. It should be noted that the universal joint 25 is arranged between the mounting bar 22 and the cross beam 231 to adjust the angle of the mounting bar 22 in the spanning process, so that the mounting bar is parallel to the top of the bridge pier, the subsequent mounting bar 22 is conveniently and stably fixed on the bridge pier, and the safety of the subsequent bridge is ensured.
In one embodiment of the present application, the telescopic rod 234 is located at the center between the first vertical beam 232 and the second vertical beam 233, and a reinforcing block is provided at the outer side of the lower end of each of the first vertical beam 232 and the second vertical beam 233, and the reinforcing bar is fixedly connected with the cross beam 231. It should be noted that the telescopic rod 234 is located at the center of the first vertical beam 232 and the second vertical beam 233 to ensure that the mounting bar 22 is more stable and does not shake during the lifting process, and the reinforcing bar can effectively reinforce the strength of the vertical beam.
In one embodiment of the present application, the front supporting device 2 of the bridge girder erection machine further comprises a traverse assembly 26 for driving the mounting bar 22 to move transversely, the traverse assembly 26 comprises a traverse rail 261, a third driving motor 263, a moving wheel 264 and a box 262, the upper surface of the box 262 is fixedly connected with the mounting bar 22, the moving wheel 264 is arranged in the box 262 and slidably connected with the traverse rail 261, the third driving motor 263 is fixed on the side of the box 262, the output end of the third driving motor 263 extends into the box 262 and is in transmission connection with the moving wheel 264, and the width of the traverse rail 261 is larger than that of the mounting bar 22. It should be noted that, when the mounting bar 22 is moved to the top of the next bridge pier, the lifting assembly 23 drives the mounting bar 22 to move downwards, and since the box 262 and the traverse rail 261 are connected to the bottom of the mounting bar 22, the traverse rail 261 is fixed to the bridge pier, and then the third driving motor 263 is driven to drive the mounting bar 22 to move on the traverse rail, so that the mounting bar 22 is adjusted.
Specifically, the lower surface of the mounting bar 22 is provided with a first mounting part 265, the upper surface of the box 262 is provided with a second mounting part 266, and the first mounting part 265 and the second mounting part 266 are provided with mounting holes matched with each other.
It is to be understood that the foregoing examples merely represent preferred embodiments of the present invention, and that the description thereof is more specific and detailed, but not intended to limit the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (10)
1. A front support device of a bridge girder erection machine, comprising:
a longitudinal guide beam;
the support bar is provided with a connecting block which is connected with the longitudinal guide beam in a sliding way;
the driving assembly comprises a first driving motor and a second driving motor, the output end of the first driving motor drives the longitudinal guide beam to slide relative to the connecting block, and the output end of the second driving motor drives the connecting block to slide relative to the longitudinal guide beam;
the lifting assembly is fixedly connected to the supporting bars;
and the mounting bar is movably connected with the lifting assembly so as to realize lifting motion of the mounting bar.
2. The front supporting device of the bridge girder erection machine according to claim 1, wherein the upper surface of the connecting block is provided with a slide rail, and the lower surface of the longitudinal guide beam is provided with a slide block slidably connected with the slide rail.
3. The front supporting device of the bridge girder erection machine as claimed in claim 1, wherein the lifting assembly comprises a cross beam, a first vertical beam, a second vertical beam and a telescopic rod, the lower surface of the cross beam is movably connected with the mounting bar, the lower ends of the first vertical beam and the second vertical beam are fixedly connected with the upper surface of the cross beam, a through hole is formed in the supporting bar and used for the first vertical beam and the second vertical beam to vertically pass through, the telescopic rod is located between the first vertical beam and the second vertical beam and fixed on the upper surface of the cross beam, and the output end of the telescopic rod is fixedly connected with the cross beam.
4. The front supporting device of the bridge girder erection machine according to claim 3, wherein a first connecting member is provided on a lower surface of the supporting bar, a second connecting member is provided on an upper surface of the cross beam, an upper end of the telescopic rod is fixedly connected with the first connecting member, and an output end of the telescopic rod is fixedly connected with the second connecting member.
5. The front support device of the bridge girder erection machine according to claim 3, further comprising a universal joint having one end connected to a lower surface of the cross member and the other end connected to the mounting bar.
6. The front support of the bridge girder erection machine according to claim 3, wherein the telescopic bar is located at a central position between the first vertical beam and the second vertical beam.
7. The front supporting device of the bridge girder erection machine according to claim 6, wherein the outer sides of the lower ends of the first vertical beam and the second vertical beam are provided with reinforcing bars, and the reinforcing bars are fixedly connected with the cross beam.
8. The front supporting device of a bridge girder erection machine as claimed in claim 1, further comprising a traverse assembly for driving the mounting bar to move transversely, wherein the traverse assembly comprises a traverse rail, a third driving motor, a moving wheel and a box body, the upper surface of the box body is fixedly connected with the mounting bar, the moving wheel is disposed in the box body and is slidably connected with the traverse rail, the third driving motor is fixed at the side of the box body, and the output end of the third driving motor extends into the box body and is in transmission connection with the moving wheel.
9. The front supporting device of a bridge girder erection machine according to claim 8, wherein a first mounting part is provided on a lower surface of the mounting bar, a second mounting part is provided on an upper surface of the box body, and the first mounting part and the second mounting part are provided with mounting holes for fitting with each other.
10. A front support means of a bridge girder erection machine according to claim 9, wherein the width of the traverse rail is greater than the width of the mounting bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121699163.5U CN217997824U (en) | 2021-07-23 | 2021-07-23 | Front support device of bridge girder erection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121699163.5U CN217997824U (en) | 2021-07-23 | 2021-07-23 | Front support device of bridge girder erection machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217997824U true CN217997824U (en) | 2022-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121699163.5U Active CN217997824U (en) | 2021-07-23 | 2021-07-23 | Front support device of bridge girder erection machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217997824U (en) |
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2021
- 2021-07-23 CN CN202121699163.5U patent/CN217997824U/en active Active
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