CN212895930U - Descending type railway box girder bridge girder erection machine - Google Patents
Descending type railway box girder bridge girder erection machine Download PDFInfo
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- CN212895930U CN212895930U CN202021180371.XU CN202021180371U CN212895930U CN 212895930 U CN212895930 U CN 212895930U CN 202021180371 U CN202021180371 U CN 202021180371U CN 212895930 U CN212895930 U CN 212895930U
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Abstract
The utility model discloses a descending railway case roof beam frame bridge crane, include: the system comprises a pair of main beams, a first running mechanism and a second running mechanism, wherein the main beams are horizontally arranged on two sides of a bridge pier at intervals along the transverse direction of the bridge pier, the bottom of any one main beam is provided with the first running mechanism, and any one first running mechanism runs along the longitudinal direction of the bridge pier; a pair of support units spaced apart in a longitudinal direction of the pier, any one of the support units including: one track of the pair of second running mechanisms is correspondingly provided with one second running mechanism, and any second running mechanism runs along the longitudinal direction of the pier; the top of a second operating mechanism is correspondingly provided with a telescopic mechanism, and any telescopic mechanism extends and retracts along the vertical direction; the two ends of the bearing beam are respectively and fixedly arranged at the tops of the pair of telescopic mechanisms; wherein, the both ends of case roof beam are arranged in the top of two carrier bars respectively. The utility model discloses under the condition of not demolising the ultralow high-voltage line, realize that the box girder of railway bridge erects, have the beneficial effect that reduces construction cost.
Description
Technical Field
The utility model relates to a railway box girder erection equipment technical field. More specifically, the utility model relates to a descending formula railway box girder bridge girder erection machine.
Background
At present, in the erection of railway box girders, most of the railway box girders are erected by means of bridge girder erection machines walking on a bridge floor, including single-girder bridge girder erection machines and double-girder bridge girder erection machines, but the whole height of the bridge girder erection machines is high and is usually about 14m, and some of the bridge girder erection machines are erected by rail-mounted beam lifting machines, but the whole height of the beam lifting machines is also high and usually exceeds the girder surface by about 16 m. When an ultralow high-voltage wire is arranged at an erection position, the high-voltage wire is usually dismantled to avoid a bridge girder erection machine or a beam lifting machine, but the dismantling of the high-voltage wire needs coordination of a lot of work, a large amount of manpower and material resources are wasted, and the investment loss is large.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to solve at least the above problems and to provide at least the advantages which will be described later.
The utility model discloses it is still another purpose to provide a descending railway box girder bridge girder erection machine, under the condition of not demolising the ultralow high-voltage line, the box girder that realizes the railway bridging erects, has the beneficial effect that reduces construction cost.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a descending railway box girder bridge girder erection machine, comprising:
the system comprises a pair of main beams, a pair of guide rails and a pair of guide rails, wherein the main beams are horizontally arranged on two sides of a bridge pier at intervals along the transverse direction of the bridge pier, any one main beam extends along the longitudinal direction of the bridge pier, the top of the main beam is provided with a track along the longitudinal direction of the bridge pier, the bottom of any one main beam is provided with a first running mechanism, and any one first running mechanism runs along;
a pair of support units spaced apart in a longitudinal direction of the pier, any one of the support units including:
one track of the pair of second running mechanisms is correspondingly provided with one second running mechanism, and any second running mechanism runs along the longitudinal direction of the pier;
the top of a second operating mechanism is correspondingly provided with a telescopic mechanism, and any telescopic mechanism extends and retracts along the vertical direction;
the two ends of the bearing beam are respectively and fixedly arranged at the tops of the pair of telescopic mechanisms;
wherein, the both ends of case roof beam are arranged in the top of two carrier bars respectively.
Preferably, any one of the support units further comprises:
the support cushion beam is arranged between the box beam and the bearing beams in a sliding mode, and any bearing beam does not limit the support cushion beam to move along the transverse direction of the bridge pier;
and the free end of a piston rod of the first hydraulic cylinder extends along the transverse direction of the pier and is connected with the support cushion beam.
Preferably, one second running mechanism comprises at least one running trolley, any running trolley is arranged on one track, one telescopic mechanism comprises at least one telescopic supporting leg, the top of one running trolley is correspondingly provided with one telescopic supporting leg, and the top of any telescopic supporting leg is fixedly connected with the bearing beam.
Preferably, one second running mechanism comprises two running carriages arranged at intervals in the longitudinal direction of the pier.
Preferably, any one of the telescoping legs comprises:
the first moving part is a hollow cylinder with an opening at the top end, and the bottom of the first moving part is fixedly connected with the running trolley;
the second moving part is a hollow cylinder with an opening at the bottom end, is slidably sleeved in the first moving part, and is fixedly connected with the bearing beam at the top;
and the second hydraulic cylinder is arranged on the first moving part, and the free end of a piston rod of the second hydraulic cylinder extends along the vertical direction and is connected with the second moving part.
Preferably, a plurality of pairs of first pin holes are uniformly arranged on the first moving part at intervals along the vertical direction, any one pair of first pin holes are communicated along the transverse direction of the pier, a plurality of pairs of second pin holes are arranged on the second moving part, and any one pair of second pin holes can be correspondingly communicated with one pair of first pin holes along the transverse direction of the pier and are connected through a pair of pin shafts.
Preferably, any of the first operating mechanisms comprises:
the supporting columns are fixedly arranged at the bottom of the main beam and are arranged at intervals along the longitudinal direction of the bridge pier, and the bottom of any supporting column is in contact with the ground;
the three-dimensional adjusting support cylinders are arranged on the ground, and one three-dimensional adjusting support cylinder is correspondingly arranged beside one support upright post.
Preferably, any one of the first operating mechanisms includes three support columns, and the distance between two adjacent support columns is 2/5 times the length of the corresponding main beam.
Preferably, two ends of any one track are respectively provided with a limiting block.
The utility model discloses at least, include following beneficial effect:
firstly, in the utility model, a pair of main beams are arranged at two sides of a bridge pier along the transverse horizontal interval of the bridge pier, and the bridge girder travels on the ground through a pair of first running mechanisms, so that the height of the bridge girder erection machine is effectively reduced, and the stability of the bridge girder erection machine is ensured;
secondly, a pair of supporting units are arranged at intervals along the longitudinal direction of the bridge pier at the tops of a pair of main beams in the utility model, any supporting unit comprises a pair of second operating mechanisms, a pair of telescopic mechanisms and a bearing beam, the bottom parts of the two bearing beams are higher than the bridge piers by adjusting the two pairs of telescopic mechanisms to realize the bridge pier spanning walking, the box beam is directly placed at the top parts of the two bearing beams, the box girder can be conveyed to the position right above the installation position by driving the two pairs of second operating mechanisms, and then the two pairs of telescopic mechanisms are adjusted to lead the box girder to descend and lead the two ends of the box girder to be respectively arranged at the top of one pier, thereby further reducing the height of the bridge girder erection machine, and the height of the box girder can be always kept at a very low level in the whole process of erecting the box girder by the bridge girder erection machine, under the condition of not dismantling the ultra-low high-voltage line, the box girder erection of the railway bridge is realized, and the beneficial effect of effectively reducing the construction cost is achieved;
thirdly, any supporting unit of the utility model also comprises a supporting beam and a first hydraulic cylinder, the supporting beam is enabled to move on the bearing beam along the transverse direction of the pier by adjusting the two first hydraulic cylinders, the adjustment of the box beam along the transverse direction of the pier is realized, and the two pairs of running mechanisms and the two first hydraulic cylinders respectively adjust the box beam along the longitudinal direction of the pier and the transverse direction of the pier, so that the installation precision of the box beam can be further improved, and the construction quality is guaranteed;
fourth, the utility model discloses well a first running gear includes a plurality of support posts and corresponds a plurality of three-dimensional regulation support cylinder that set up, through support post and three-dimensional regulation support cylinder's cooperation, realizes the walking of bridging machine, has steady walking, the high beneficial effect of stability.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a front view of the descending railway box girder bridge girder erection machine according to one embodiment of the present invention;
fig. 2 is a left side view of the descending railway box girder bridge girder erection machine according to one embodiment of the present invention;
fig. 3 is a front view of the supporting unit according to one embodiment of the present invention;
fig. 4 is a left side view of the supporting unit according to one embodiment of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
It should be noted that in the description of the present invention, the terms indicating the orientation or the positional relationship are based on the orientation or the positional relationship shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
As shown in fig. 1-4, the utility model provides a descending railway box girder bridge girder erection machine, include:
the pair of main beams 1 are horizontally arranged on two sides of the bridge pier 2 at intervals along the transverse direction of the bridge pier 2, any one main beam 1 extends along the longitudinal direction of the bridge pier 2, tracks are arranged on the top of the main beam along the longitudinal direction of the bridge pier 2, a first running mechanism is arranged at the bottom of any one main beam 1, and any one first running mechanism runs along the longitudinal direction of the bridge pier 2;
a pair of support units arranged at intervals in a longitudinal direction of the pier 2, each of the support units including:
one track of the pair of second running mechanisms is correspondingly provided with one second running mechanism, and any second running mechanism runs along the longitudinal direction of the pier 2;
the top of a second operating mechanism is correspondingly provided with a telescopic mechanism, and any telescopic mechanism extends and retracts along the vertical direction;
two ends of the bearing beam 7 are respectively and fixedly arranged on the tops of the pair of telescopic mechanisms;
wherein, the two ends of the box girder 9 are respectively arranged on the top of the two bearing beams 7.
In the technical scheme, the step of erecting the box girder 9 by the descending railway box girder bridge erecting machine is as follows: by driving the pair of first running mechanisms, the pair of main beams 1 travel to the lower side of the installation position of the box beam 9 along the longitudinal direction of the pier 2; the two pairs of telescopic mechanisms are adjusted to enable the bottoms of the two bearing beams 7 to be higher than the bridge piers 2, so that a pair of supporting units on a pair of main beams 1 can walk across the bridge piers 2; placing the box girder 9 on the tops of the two bearing beams 7 by using equipment, driving the two pairs of second running mechanisms to enable the pair of supporting units to run along the pair of tracks, and conveying the box girder 9 to the position right above the installation position; adjusting the two pairs of telescopic mechanisms to enable the box girder 9 to descend and enable two ends of the box girder 9 to be respectively placed at the top of one pier 2, and completing installation of the section of box girder 9; driving two pairs of second operating mechanisms to enable a pair of supporting units to be respectively positioned at gaps at two ends of the section of box girder 9 (gaps exist between two adjacent sections of box girders 9), and adjusting two pairs of telescopic mechanisms to enable the bottoms of two bearing beams 7 to be higher than the section of box girder 9; finally, by driving the pair of first running mechanisms, the pair of main beams 1 travel in the longitudinal direction of the pier 2, and the bridge girder erection machine returns along the original path. And then, repeating the steps to finish the erection of the rest box girder 9.
In another technical solution, any one of the supporting units further includes:
the supporting and cushioning beams 8 are arranged between the box beams 9 and the bearing beams 7 in a sliding mode, any bearing beam 7 does not limit the supporting and cushioning beam 8 to move along the transverse direction of the pier 2, the top of the bearing beam 7 is provided with a slide way along the transverse direction of the pier 2, the bottom of the supporting and cushioning beam 8 is provided with a slide plate, and pulleys at the bottom of the slide plate are arranged on the slide way, so that the supporting and cushioning beam 8 can move along the transverse direction of the pier 2 relative to the bearing beams 7;
and the first hydraulic cylinder 10 is fixedly arranged at the top of the bearing beam 7, and the free end of a piston rod of the first hydraulic cylinder 10 extends along the transverse direction of the pier 2 and is connected with the support cushion beam 8.
The box girder 9 is placed on the two supporting cushion girders 8, the pair of supporting units can walk along the pair of tracks by driving the two pairs of second operating mechanisms, the box girder 9 is conveyed to the position right above the installation position, then any supporting cushion girder 8 can be driven to move transversely along the pier 2 on the corresponding bearing girder 7 by adjusting the two first hydraulic cylinders 10, the box girder 9 can be adjusted transversely along the pier 2, the two pairs of second operating mechanisms and the two first hydraulic cylinders can respectively adjust the box girder 9 longitudinally along the pier 2 and transversely along the pier 2, the installation precision of the box girder 9 can be further improved, and the construction quality is guaranteed.
In another kind of technical scheme, a second running gear includes at least one operation dolly 5, and arbitrary operation dolly 5 is arranged in on a track, and a telescopic machanism includes at least one flexible stabilizer blade 6, and the top of an operation dolly 5 corresponds sets up a flexible stabilizer blade 6, and the top and the carrier bar 7 rigid coupling of arbitrary flexible stabilizer blade 6 can effectively improve the stability of a pair of supporting unit walking and effectively avoid the case roof beam 9 to appear rocking, further guarantee the precision of case roof beam 9 installation, ensure construction quality.
In another kind of technical scheme, a second running gear includes two operation dollies 5 that set up along pier 2's longitudinal separation, the most reasonable quantity of operation dolly 5 with arrange, this moment, a telescopic machanism includes two flexible stabilizer blades 6, then a supporting element's operation dolly 5 and flexible stabilizer blade 6 are four, four flexible stabilizer blades 6 are located the four corners of carrier bar 7 and all with the bottom rigid coupling of carrier bar 7 at its top, can ensure the stability of a pair of supporting element walking and effectively avoid box girder 9 to appear rocking, it is reasonable to have structural design, the high beneficial effect of stability.
In another solution, any one of the telescopic legs 6 comprises:
the first moving part is a hollow cylinder with an opening at the top end, and the bottom of the first moving part is fixedly connected with the running trolley 5;
the second moving part is a hollow cylinder with an opening at the bottom end, is sleeved in the first moving part in a sliding manner, and the top of the second moving part is fixedly connected with the bearing beam 7;
and the second hydraulic cylinder is arranged on the first moving part, and the free end of a piston rod of the second hydraulic cylinder extends along the vertical direction and is connected with the second moving part.
The second moving part is driven to move along the vertical direction relative to the first moving part by adjusting the second hydraulic cylinder, and then the height of the telescopic supporting leg 6 is adjusted to enable the bearing beam 7 to reach the set height position.
In another technical scheme, a plurality of pairs of first pin holes are uniformly arranged on a first moving part at intervals along the vertical direction, any one pair of first pin holes are communicated along the transverse direction of a pier 2, a plurality of pairs of second pin holes are arranged on a second moving part, any one pair of second pin holes can be correspondingly communicated with one pair of first pin holes along the transverse direction of the pier 2 and are connected through a pair of pin shafts 11, a bearing beam 7 reaches a set height position by adjusting a second hydraulic cylinder, and one pair of second pin holes are correspondingly communicated with one pair of first pin holes along the transverse direction of the pier 2 to form a pair of through holes which are communicated with the first moving part and the second moving part along the transverse direction of the pier 2, one end of one pin shaft 11 passes through one through hole and then is locked by using a split pin to fix the first moving part and the second moving part, so that the supporting force and the stability of the telescopic support leg 6 can be, facilitating the adjustment of the telescopic legs 6.
In another aspect, any of the first operating mechanisms includes:
the supporting columns 3 are fixedly arranged at the bottom of the main beam 1 and are arranged at intervals along the longitudinal direction of the bridge pier 2, and the bottom of any supporting column 3 is in contact with the ground;
and the three-dimensional adjusting and supporting oil cylinders 4 are arranged on the ground, and one three-dimensional adjusting and supporting oil cylinder 4 is correspondingly arranged beside one supporting upright post 3.
Any main beam 1 is arranged on the ground through a plurality of supporting upright columns 3, three-dimensional adjusting supporting oil cylinders 4 are arranged on the ground and are positioned between the corresponding main beam 1 and the ground, and one supporting upright column 3 is correspondingly provided with one three-dimensional adjusting supporting oil cylinder 4. Jacking along the vertical direction by driving a vertical jacking oil cylinder of any three-dimensional adjusting support oil cylinder 4 to enable the bottom of any support upright post 3 to leave the ground; the main beam 1 is horizontally displaced along the longitudinal direction of the bridge pier 2 by driving any double-acting oil cylinder of the three-dimensional adjusting support oil cylinder 4; the bottom of any supporting upright post 3 is contacted with the ground by driving a vertical jacking oil cylinder of any three-dimensional adjusting supporting oil cylinder 4 to descend along the vertical direction; finally, any three-dimensional adjusting support cylinder 4 is conveyed to the side of the corresponding support upright 3 along the moving direction of any support upright 3 through equipment. Afterwards, repeat above-mentioned step, realize the walking of arbitrary girder 1, have steady walking, the high beneficial effect of stability.
In another technical scheme, any one first running mechanism comprises three support columns 3, the distance between two adjacent support columns 3 is 2/5 the length of the corresponding main beam 1, the support columns 3 at two ends of the main beam 1 are all spaced from the end closest to the support columns 3, and the most reasonable number and arrangement of the support columns 3 have the advantages of reasonable structural design and high stability.
In another technical scheme, two ends of any one track are respectively provided with a limiting block for limiting a pair of supporting units, so that the construction safety is guaranteed.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (9)
1. Descending formula railway box girder bridge girder erection machine, its characterized in that includes:
the system comprises a pair of main beams, a pair of guide rails and a pair of guide rails, wherein the main beams are horizontally arranged on two sides of a bridge pier at intervals along the transverse direction of the bridge pier, any one main beam extends along the longitudinal direction of the bridge pier, the top of the main beam is provided with a track along the longitudinal direction of the bridge pier, the bottom of any one main beam is provided with a first running mechanism, and any one first running mechanism runs along;
a pair of support units spaced apart in a longitudinal direction of the pier, any one of the support units including:
one track of the pair of second running mechanisms is correspondingly provided with one second running mechanism, and any second running mechanism runs along the longitudinal direction of the pier;
the top of a second operating mechanism is correspondingly provided with a telescopic mechanism, and any telescopic mechanism extends and retracts along the vertical direction;
the two ends of the bearing beam are respectively and fixedly arranged at the tops of the pair of telescopic mechanisms;
wherein, the both ends of case roof beam are arranged in the top of two carrier bars respectively.
2. The descending railway box girder bridge girder erection machine of claim 1, wherein any one of the support units further comprises:
the support cushion beam is arranged between the box beam and the bearing beams in a sliding mode, and any bearing beam does not limit the support cushion beam to move along the transverse direction of the bridge pier;
and the free end of a piston rod of the first hydraulic cylinder extends along the transverse direction of the pier and is connected with the support cushion beam.
3. A descending railway box girder bridge girder erection machine according to claim 1, wherein a second running mechanism comprises at least one running carriage, any running carriage is disposed on a track, a telescopic mechanism comprises at least one telescopic supporting leg, a telescopic supporting leg is correspondingly disposed on the top of one running carriage, and the top of any telescopic supporting leg is fixedly connected with the carrier beam.
4. A descending railway box girder bridge girder erection machine according to claim 3, wherein one second running mechanism comprises two running carriages disposed at a spacing longitudinally along the pier.
5. A descending railway box girder bridge girder erection machine according to claim 3, wherein any one of the telescopic legs comprises:
the first moving part is a hollow cylinder with an opening at the top end, and the bottom of the first moving part is fixedly connected with the running trolley;
the second moving part is a hollow cylinder with an opening at the bottom end, is slidably sleeved in the first moving part, and is fixedly connected with the bearing beam at the top;
and the second hydraulic cylinder is arranged on the first moving part, and the free end of a piston rod of the second hydraulic cylinder extends along the vertical direction and is connected with the second moving part.
6. A descending railway box girder bridge girder erection machine according to claim 5, wherein the first movable member is provided with a plurality of pairs of first pin holes at regular intervals in the vertical direction, any one pair of first pin holes is formed to penetrate in the transverse direction of the pier, the second movable member is provided with a plurality of pairs of second pin holes, and any one pair of second pin holes is formed to penetrate through the corresponding pair of first pin holes in the transverse direction of the pier and is connected with the corresponding pair of first pin holes through a pair of pin shafts.
7. A descending railway box girder bridge girder erection machine according to claim 1, wherein any one of the first running mechanisms comprises:
the supporting columns are fixedly arranged at the bottom of the main beam and are arranged at intervals along the longitudinal direction of the bridge pier, and the bottom of any supporting column is in contact with the ground;
the three-dimensional adjusting support cylinders are arranged on the ground, and one three-dimensional adjusting support cylinder is correspondingly arranged beside one support upright post.
8. A descending railway box girder bridge girder erection machine according to claim 7, wherein any one of the first running mechanisms includes three support columns, and the distance between two adjacent support columns is 2/5 times the length of its corresponding main girder.
9. A descending railway box girder bridge girder erection machine according to claim 1, wherein both ends of any one of the rails are respectively provided with a stopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021180371.XU CN212895930U (en) | 2020-06-23 | 2020-06-23 | Descending type railway box girder bridge girder erection machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021180371.XU CN212895930U (en) | 2020-06-23 | 2020-06-23 | Descending type railway box girder bridge girder erection machine |
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| CN212895930U true CN212895930U (en) | 2021-04-06 |
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| CN202021180371.XU Active CN212895930U (en) | 2020-06-23 | 2020-06-23 | Descending type railway box girder bridge girder erection machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113756212A (en) * | 2021-09-13 | 2021-12-07 | 中铁第五勘察设计院集团有限公司 | Portal structure |
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2020
- 2020-06-23 CN CN202021180371.XU patent/CN212895930U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113756212A (en) * | 2021-09-13 | 2021-12-07 | 中铁第五勘察设计院集团有限公司 | Portal structure |
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