CN217678601U - Shifting device for underwater precast beam - Google Patents
Shifting device for underwater precast beam Download PDFInfo
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- CN217678601U CN217678601U CN202123449326.7U CN202123449326U CN217678601U CN 217678601 U CN217678601 U CN 217678601U CN 202123449326 U CN202123449326 U CN 202123449326U CN 217678601 U CN217678601 U CN 217678601U
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- precast beam
- plate
- launching
- precast
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Abstract
The utility model discloses a shifting unit of precast beam launching, it includes that two are used for supporting the precast beam lift the roof beam, lift and all be equipped with the bearing structure who prevents the precast beam distortion on the roof beam, precast beam both ends place respectively on bearing structure, still include slipway dolly, oblique hull frame, the slipway dolly be used for lifting the roof beam shift to oblique hull frame on, oblique hull frame be used for realizing the offal of precast beam, the utility model provides a shifting unit of precast beam launching that simple structure, with low costs and reliability are high.
Description
Technical Field
The utility model relates to a precast beam technical field that launches especially relates to a displacement device that precast beam launched.
Background
A bridge or an elevated road erected on water needs to be assembled by 15 (node) unit beams with the length of about 3m and the weight of about 60t, the prefabricated beam section with the length of 43.00m, the width of 12.00m (the bottom width of 3.60 m), the height of 2.50m and the weight of 960t is molded, the prefabricated beam section only allows the bearing force to be applied at two positions of the bottom surfaces of the two ends (the 1 st and the 15 th), the bearing area of each position is 0.50m multiplied by 0.50m =0.25m2, namely 240t is borne at each position, and the weight corresponding to the total 960t is borne on a plane of 1m 2. The precast beam section belongs to a full reinforced concrete structure, so that the safety and the quality of the precast beam section are required to be comprehensively controlled by adopting effective unconventional special bead measures in the integral shifting launching process, and the phenomena of impact, collision, transverse (lateral) direction and distortion cannot be generated.
According to the prior art, a precast beam traversing device is provided, wherein a group of precast beam traversing devices are respectively arranged at two ends of a precast beam according to the traversing installation direction of the precast beam, and two ends of the precast beam are respectively arranged on a sliding ship. Controlling a telescopic driver to drive the sliding boat to slide along the track; and then the connection between the telescopic driver and the sliding boat is removed, the pushing seat is removed and then is installed on the next installation position and locked, the telescopic driver and the sliding boat are connected again, and the telescopic driver is controlled again to enable the sliding boat to move again. The operation is circulated so as to traverse the precast girders to a desired position. From this, can use the telescopic actuator that a length is shorter to carry out the sideslip transportation of longer distance with precast beam, the structure is complicated, and is with high costs, and can't shift precast beam to the surface of water.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the defect of the prior art is overcome, and the displacement device for the precast beam launching, which is simple in structure, low in cost and high in reliability, is provided.
In order to realize the purpose, the technical scheme of the utility model is that: the shifting device comprises two lifting beams for supporting the precast beam, bearing structures for preventing the precast beam from being distorted are arranged on the lifting beams, two ends of the precast beam are respectively placed on the bearing structures, the shifting device further comprises a slipway trolley and an inclined shipway, the slipway trolley is used for shifting the lifting beams to the inclined shipway, and the inclined shipway is used for realizing launching of the precast beam.
After the structure more than adopting, compared with the prior art, the utility model has the following advantage: the two ends of the precast beam are placed on the lifting beam, the lifting beam is used for supporting the two ends of the precast beam, the lifting beam is placed on the slipway trolley in advance, so that the slipway trolley is used for shifting the precast beam, the lifting beam of the slipway trolley is placed on the inclined shipway frame, and the inclined shipway frame is used for conveying the precast beam to the water surface, so that the precast beam is launched, the structure is simple, and the cost is low; meanwhile, a supporting structure capable of preventing the precast beam from being twisted is arranged on the lifting beam, so that the precast beam is prevented from generating overload torque, and the reliability is high.
Preferably, the supporting structure comprises a slip-resistant plate, an upper supporting plate, a sliding plate and a lower supporting plate, wherein the slip-resistant plate, the upper supporting plate, the sliding plate and the lower supporting plate are sequentially stacked from top to bottom, the lower supporting plate is arranged on a lifting beam, two ends of the precast beam are respectively placed on the slip-resistant plate, relative sliding can be generated between the upper supporting plate and the sliding plate and between the sliding plate and the lower supporting plate, the structure is simple, the slip-resistant plate, the upper supporting plate, the sliding plate and the lower supporting plate form the supporting structure, the sliding plate and the upper supporting plate and the lower supporting plate can generate relative sliding, and when the berth trolleys at two ends of the precast beam run asynchronously, the precast beam can generate small displacement on the supporting structure and cannot generate transverse distortion damage to the precast beam.
Preferably, the anti-slip plate is a wood plate, the wood plate has the advantages of compression embeddability, large friction coefficient and non-slip, and when one end of the precast beam is placed at two positions of the supporting structure to bear loads of 240t, the sliding displacement of the precast beam Liang Qingsong is realized when the slipway trolley lifts and possibly generates non-parallel transverse movement, and the placing is also stressed stably, safely and reliably.
Preferably, the upper supporting plate and the lower supporting plate are both steel plates, the sliding plate is a magnesium plate, relative sliding is convenient to generate between the sliding plate and the upper supporting plate, between the sliding plate and the lower supporting plate, and the surface of the magnesium plate is oil-free, smooth, wear-resistant and good in compression resistance.
Preferably, the upper surface and the lower surface of the sliding plate are coated with yellow oil layers, so that the sliding friction coefficient of the sliding plate and the upper supporting plate and the sliding plate and the lower supporting plate can reach 0.07.
Preferably, the position, close to the supporting structure, of the lifting beam is respectively provided with a first baffle plate for transversely limiting the precast beam and a second baffle plate for longitudinally limiting the precast beam, so that the precast beam is prevented from being separated from the supporting structure, and the reliability is high.
Preferably, the first baffle plates are respectively positioned at the left end and the right end of the precast beam, so that the effect is good.
Preferably, the second baffles are respectively positioned at the front side and the rear side of the precast beam, and the effect is good.
Preferably, the cross sections of the first baffle and the second baffle are both in the shape of a right triangle, so that the reliability is high.
Preferably, the inner side surface of the first baffle and the inner side surface of the second baffle are respectively provided with a buffer plate, so that the precast beam is prevented from being damaged and scratched with the first baffle and the second baffle.
Drawings
Fig. 1 is a left side sectional view of the displacement device for the underwater precast beam of the present invention.
Fig. 2 is a front sectional view of the supporting structure of the displacement device for the precast beam launching of the present invention.
Fig. 3 is a front view cross-sectional view of the utility model relates to a shifting unit berth bogie of precast beam launching, lift roof beam and precast beam.
Fig. 4 is a top view of the lifting beam of the displacement device for the underwater precast beam.
Fig. 5 is a left side sectional view of the utility model discloses a displacement device of precast beam launching lifts roof beam by jack-up.
The structure comprises a prefabricated beam 1, a prefabricated beam 2, a lifting beam 3, a slipway trolley 4, an inclined shipway frame 5, a first stop block 6, a supporting structure 610, a non-slip plate 620, an upper supporting plate 630, a sliding plate 640, a lower supporting plate 7, a second stop block 8, a transverse moving rail 9 and a slope rail.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
As shown in fig. 1, the utility model provides a shifting unit of precast beam launching, lift roof beam 2 and establish the bearing structure 6 on lifting roof beam 2 including two, lift roof beam 2 earlier and put respectively on berth dolly 3, put respectively on lifting the bearing structure 6 on roof beam 2 to precast roof beam 1 both ends again, bearing structure 6 is used for preventing the injury that produces when the asynchronous displacement error of berth dolly 3 functioning speed friction because of precast roof beam 1 both ends, berth dolly 3 is located on sideslip track 8, berth dolly 3 is carrying precast roof beam 1 walking on the sideslip track, continue to walk to the terminal crisscross position with slope track 9 of sideslip track 8 and stop, draw and drag the sloping hull 4 to bear the back, descend berth dolly 3 and withdraw from, realize sloping hull 4 to bear the precast roof beam 1 and follow slope track 9, adopt the floating crane ship to hang and launch prefabricated roof beam 1 at last and transport. The support structure 6 serves to prevent the precast beam 1 from being damaged by lateral twisting. The bearing slipway trolleys 3 of the precast beam 1 are respectively arranged on the transverse moving tracks 8 which are vertical to the longitudinal moving tracks (not shown in the figure), and when the transverse moving tracks 8 and the longitudinal moving tracks are not vertically deviated when the slipway trolleys 3 at two ends walk, the supporting structure 6 has small displacement on the plane and cannot generate transverse distortion damage to the precast beam 1.
Specifically, as shown in fig. 1 and 5, the number of the supporting structures 6 on one lifting beam 2 is two, and the same end of the precast beam 1 is supported by using the two supporting structures 6; meanwhile, one lifting beam 2 corresponds to four slipway trolleys 3, the lifting beam 2 is supported by the four slipway trolleys 3, and the lifting beam 2 is jacked up by a jack. The lifting beam 2 is of a steel bar box type structure.
As an example, as shown in fig. 2, the supporting structure 6 includes a slip-preventing plate 610, an upper supporting plate 620, a sliding plate 630 and a lower supporting plate 640, the slip-preventing plate 610, the upper supporting plate 620, the sliding plate 630 and the lower supporting plate 640 are stacked in sequence from top to bottom, the lower supporting plate 640 is disposed on the lifting beam 2, the sliding plate 630 and the upper supporting plate 620 and the lower supporting plate 640 can slide relatively, the end of the precast beam 1 is placed on the slip-preventing plate 610, the slip-preventing plate 610 can not slide relatively between the precast beam 1 and the upper supporting plate 620, when the precast beam 1 is moved laterally or runs asynchronously accidentally, the supporting structure 6 can generate relatively small planar rotation motion, that is, the sliding plate 630 and the upper supporting plate 620 and the lower supporting plate 640 can generate relatively small planar rotation motion. Specifically, the upper supporting plate 620 and the lower supporting plate 640 are both steel plates, and the sliding plate 630 is a magnesium plate (equivalent steel plate, and the surface of the sliding plate is oil-free, smooth, wear-resistant and good in pressure resistance); the anti-slip plate 610 is a wood plate, and has the advantages of compression embeddability, large friction coefficient and no slippage, and the anti-slip plate 610 can obtain larger friction resistance relative to the precast beam 1 and the upper supporting plate 620 due to the wood plate and the large friction coefficient between the wood and the steel. In the same way, the lower supporting plate 640 is installed and welded on the lifting beam 2 to form a whole, so that the displacement use of large-batch precast beams 1 is met, and the cost is low.
As an embodiment, the upper surface and the lower surface of the sliding plate 630 are coated with grease layers, the purpose is to further reduce the friction coefficient, when the precast beam 1 is transversely moved or runs asynchronously due to accidents, the supporting structure 6 generates relatively tiny plane rotation motion, the sliding friction coefficient of the steel plate and the magnesium plate after being coated with grease can reach 0.07, the supporting structure 6 generates plane sliding relative to the precast beam 1 and the lifting beam 2, and the accidental injury caused by the unparallel transverse movement of the slipway trolley 3 to the precast beam 1 can be avoided.
As an embodiment, as shown in fig. 1, 3, 4 and 5, the lifting beam 2 is further provided with two first baffle plates 5 and two second baffle plates 7, and the two first baffle plates 5 are used for axially limiting the precast beam 1, and are specifically arranged at the left end and the right end of the precast beam 1; the number of the second baffles 7 is four, and one lifting beam 2 corresponds to two second baffles 7 and is used for longitudinally limiting the precast beam 1, and the lifting beams are specifically arranged on the front side and the rear side of the precast beam 1. The first baffle 5 and the second baffle 7 are both arranged around the periphery of the support structure 6. Specifically, the first baffle 5 and the second baffle 7 enclose a structure like a Chinese character 'Contraband' with an opening facing the center of the precast beam 1. Specifically, the first baffle 5 and the second baffle 7 are both right-angled triangular in cross-sectional shape.
As an embodiment, as shown in FIG. 4, gaps are formed between the first baffle 5 and the end surface of the precast beam 1 and between the second baffle 7 and the side surface of the precast beam 1, and a buffer plate needs to be inserted in the gaps to prevent the two sides and the two ends of the precast beam 1 from being scratched and damaged by non-parallel movement during the transverse movement of the slipway trolley 3 for carrying the precast beam 1. Specifically, the buffer plate is a rubber plate. Specifically, the gap is 30-40 mm, the thickness of the rubber plate is 10-20 mm, preferably, the gap is 30mm, and the thickness of the rubber plate is 10mm; the gap is 35mm, and the thickness of the rubber plate is 15mm; the gap is 40mm, and the thickness of the rubber plate is 20mm.
Particularly, the principle of the utility model is that the two ends of the precast beam 1 are placed on the lifting beam 2, the lifting beam 2 is used for supporting the two ends of the precast beam 1, the lifting beam 2 is placed on the slipway trolley 3 in advance, so the slipway trolley 3 is used for shifting the precast beam 1, then the lifting beam 2 of the slipway trolley 3 is placed on the inclined shipway frame 4, and the precast beam is transported to the water surface by the inclined shipway frame, thereby realizing the launching of the precast beam, and the structure is simple and the cost is low; meanwhile, a supporting structure capable of preventing the precast beam from being twisted is arranged on the lifting beam, so that the precast beam is prevented from generating overload torque, and the reliability is high.
The working process comprises the following steps: 1. when the slipway trolley 3 lifts the precast beam 1 to move transversely to the area of the slope track 9 on the transverse track 8, the two inclined cradles 4 and the lifting beam 2 are pulled to bear force; 2. when the pressure gauge on the slipway trolley 3 is detected to be 8-9 Mpa, the slipway trolley 3 can be lowered, and the 1080t load of the precast beam 1 supported by the lifting beam 2 is borne on the two inclined shipway frames 4; 3. after the slipway trolley 3 exits the area, the lifting beam 2 carrying the precast beam 1 and operating the inclined shipway 4 can be commanded to launch through the slope track 9.
On the basis of the above solution, if various changes or modifications of the present invention do not depart from the spirit and scope of the present invention, if they fall within the scope of the claims and the equivalent technology of the present invention, then the present invention is also intended to include these changes and modifications.
Claims (10)
1. The utility model provides a displacement device that precast beam launched, its characterized in that: the lifting beam comprises two lifting beams (2) used for supporting a precast beam (1), wherein supporting structures (6) for preventing the precast beam (1) from being twisted are arranged on the lifting beams (2), two ends of the precast beam (1) are respectively placed on the supporting structures (6), the lifting beam further comprises a slipway trolley (3) and an inclined shipway frame (4), the slipway trolley (3) is used for shifting the lifting beams (2) to the inclined shipway frame (4), and the inclined shipway frame (4) is used for realizing launching of the precast beam (1).
2. A displacement device for precast beam launching as claimed in claim 1, wherein: the supporting structure (6) comprises a slip-resistant plate (610), an upper supporting plate (620), a sliding plate (630) and a lower supporting plate (640), wherein the slip-resistant plate (610), the upper supporting plate (620), the sliding plate (630) and the lower supporting plate (640) are sequentially stacked from top to bottom, the lower supporting plate (640) is arranged on a lifting beam (2), two ends of a prefabricated beam (1) are respectively placed on the slip-resistant plate (610), and the relative sliding can be generated between the upper supporting plate (620) and the sliding plate (630) and between the sliding plate (630) and the lower supporting plate (640).
3. A displacement device for precast beam launching as claimed in claim 2, wherein: the anti-slip plate (610) is a wood plate.
4. A displacement apparatus for precast beam launching as recited in claim 2, wherein: the upper supporting plate (620) and the lower supporting plate (640) are both steel plates, and the sliding plate (630) is a magnesium plate.
5. A displacement device for precast beam launching as claimed in claim 2, wherein: the upper surface and the lower surface of the sliding plate (630) are coated with yellow oil layers.
6. A displacement device for precast beam launching as claimed in claim 1, wherein: and the positions, close to the supporting structures, on the lifting beam (2) are respectively provided with a first baffle (5) for transversely limiting the precast beam (1) and a second baffle (7) for longitudinally limiting the precast beam (1).
7. A displacement device for precast beam launching as claimed in claim 6, wherein: the first baffle plates (5) are respectively positioned at the left end and the right end of the precast beam (1).
8. A displacement device for precast beam launching as claimed in claim 6, wherein: the second baffles (7) are respectively positioned at the front side and the rear side of the precast beam (1).
9. A displacement device for precast beam launching as claimed in claim 6, wherein: the cross sections of the first baffle (5) and the second baffle (7) are both in the shape of a right triangle.
10. A displacement device for precast beam launching as claimed in claim 6, wherein: and the inner side surface of the first baffle (5) and the inner side surface of the second baffle (7) are respectively provided with a buffer plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123449326.7U CN217678601U (en) | 2021-12-31 | 2021-12-31 | Shifting device for underwater precast beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123449326.7U CN217678601U (en) | 2021-12-31 | 2021-12-31 | Shifting device for underwater precast beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217678601U true CN217678601U (en) | 2022-10-28 |
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ID=83726919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123449326.7U Active CN217678601U (en) | 2021-12-31 | 2021-12-31 | Shifting device for underwater precast beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217678601U (en) |
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2021
- 2021-12-31 CN CN202123449326.7U patent/CN217678601U/en active Active
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