Temporary supporting device and bridge erecting machine

Abstract

The utility model relates to the technical field of bridge construction, in particular to a temporary supporting device and a bridge erecting machine. The temporary supporting device comprises a supporting component, a base and a movable pulley. The top end of the supporting component is used for being connected with a main beam of the bridge girder erection machine through bolts. The base is connected with the bottom end of the supporting component. The movable pulley is connected to the lower portion of the base. The temporary supporting device is connected with the main beam of which the tail beam section and the rear supporting leg are removed, and the movable pulley is arranged at the bottom, so that the temporary supporting device can play a role in temporary supporting, the risk of overturning in the beam feeding process is reduced, and meanwhile, the problem that the tail beam section of the main beam of the bridge girder erection machine is removed is solved. Therefore, the bridge girder erection machine cannot move longitudinally under the condition that the bridge girder erection machine is lack of rear supporting legs.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, and in particular to a temporary support device and a bridge erecting machine. Background Technology

[0002] With the rapid development of my country's highway construction, especially the construction of expressways in mountainous and complex terrain areas, the design of small-radius curved bridges in bridge engineering is increasing. These bridges not only have significant geographical constraints, such as small-radius curves, large longitudinal slopes, and high piers, but also face enormous challenges in the precast beam erection process.

[0003] Traditional bridge erecting machines have limited application on small-radius curved bridges. For example, a bridge erecting machine with a 40m span is approximately 70m long. When used to erect a curved bridge with a turning radius of 150m, the overall length of the machine exceeds the bridge deck. The main beam of the bridge erecting machine is supported by three points: the front leg, the middle leg, and the rear leg. The main beam is divided into three sections: the front beam section, the middle beam section, and the tail beam section. The front leg connects to the front beam section, the middle leg connects to the middle beam section, and the rear leg connects to the tail beam section. When feeding precast beams for curved bridges, the beam needs to be fed into the bridge erecting machine from the end near the tail beam section. However, the overall length of the bridge erecting machine exceeds the bridge deck of the curved bridge. Figure 2 As shown, this results in the inability to feed the beam. The current solution to this problem is to remove the tail section of the main beam of the bridge erecting machine, thus shortening the machine to the bridge deck area, as shown... Figure 3 As shown, the beam is then fed. However, this also leads to the following: when the tail section of the main beam of the bridge erecting machine is removed, the rear support leg connected to the tail section will also be removed. Furthermore, the original rear support leg cannot be easily removed and relocated, leaving only the front and middle support legs of the bridge erecting machine. Without the rear support leg, the bridge erecting machine cannot move longitudinally, which also increases the risk of overturning during the beam feeding process. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology, which requires the removal of the tail section of the main beam of the bridge erecting machine when feeding beams for curved bridges. This results in the bridge erecting machine being unable to move longitudinally without the rear support legs, and also increases the risk of overturning during the beam feeding process. The invention provides a temporary support device and a bridge erecting machine.

[0005] In a first aspect, the present invention provides a temporary support device, comprising:

[0006] A support component, the top of which is used to be bolted to the main beam of the bridge erecting machine;

[0007] A base, which is connected to the bottom end of the supporting component;

[0008] A movable trolley is connected to the lower part of the base.

[0009] This invention provides a temporary support device. When the tail section and rear outriggers of the main beam of the bridge erecting machine are removed, the temporary support device can be connected to the remaining end of the main beam away from the front outriggers, providing temporary support and reducing the risk of overturning during beam feeding. The top of the support component is bolted to the main beam of the bridge erecting machine. This connection method allows for both quick installation and quick removal of the temporary support device, improving its flexibility. The base is connected to the bottom of the support component, and a movable trolley is installed below the base. The temporary support device and the main beam move on the bridge deck via the movable trolley, thus solving the problem that the bridge erecting machine cannot move longitudinally after the tail section and rear outriggers of the main beam are removed.

[0010] The top of the support component is used to connect to the main beam of the bridge erecting machine by bolts. The bolt connection can be that both the support component and the main beam have threaded holes that can be mated, and then they are connected by straight bolts and nuts; the bolt connection can also be a U-bolt.

[0011] The connection between the movable trolley and the base can be a fixed connection, such as bolt connection, welding, or adhesive bonding, or it can be a mutual contact, using the friction generated by the pressure between the contact surfaces to restrict relative movement.

[0012] Preferably, a heightening component is provided between the supporting component and the base. The heightening component is used to increase the height of the temporary support device to accommodate situations where the bridge erecting machine is at different heights from the bridge deck.

[0013] The supporting component, the base, and the heightening component can all be steel truss structures or tubular steel structures to ensure sufficient vertical load-bearing capacity.

[0014] Preferably, the supporting component, the base, and the heightening component are all made of steel pipe. The cross-section of the steel pipe can be of various shapes, such as square, rectangular, and circular. Using steel pipe to make the heightening component facilitates processing and manufacturing; at the same time, the tubular cross-section has better stress characteristics and load-bearing capacity than a solid cross-section.

[0015] Preferably, the steel pipe is a rectangular steel pipe or a circular steel pipe.

[0016] Preferably, the support component is connected to the main beam via U-bolts. The U-bolts are wound around the main beam members and then connected to the support component via bolts. This design eliminates the need for bolt holes in the main beam, further improving the convenience of the temporary support device.

[0017] Preferably, the movable trolley includes a flat plate, two side plates, and a plurality of rollers, with the two side plates connected below the flat plate and the plurality of rollers connected between the two side plates.

[0018] Preferably, an anti-slip pad is provided between the movable trolley and the base. The anti-slip pad has a high coefficient of friction, resulting in greater frictional force generated by the pressure between the contact surfaces when it contacts both the movable trolley and the base, further restricting the relative movement between the movable trolley and the base. Simultaneously, this design facilitates the easy removal of the movable trolley, improving the flexibility of the temporary support device. The anti-slip pad can be of various types, such as a rubber pad, a silicone pad, or a sleeper.

[0019] Preferably, the anti-slip pad is a rubber pad. The rubber pad has better anti-slip properties and durability.

[0020] In a second aspect, the present invention provides a bridge erecting machine, including a front beam section, a middle beam section, a front support leg, a middle support leg, and a temporary support device, wherein the temporary support device is connected to the lower part of the middle beam section away from the front beam section.

[0021] This utility model provides a bridge erecting machine, in which the temporary support device replaces the rear outrigger of the bridge erecting machine, providing temporary support for the bridge erecting machine, reducing the risk of the bridge erecting machine overturning during the beam feeding process, and solving the problem that the bridge erecting machine cannot move longitudinally when the tail section of the main beam of the bridge erecting machine is removed, resulting in the bridge erecting machine being unable to move longitudinally without the rear outrigger.

[0022] Preferably, the middle beam segment includes two beam frames, each beam frame is connected to two temporary support devices, the two temporary support devices are arranged side by side, and a connecting component is provided between the support components of the two temporary support devices. The connecting component can be arranged horizontally or diagonally, and the connecting component can enhance the integrity between the two temporary support devices, enabling the bridge erecting machine to obtain better stability support.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] 1. This utility model provides a temporary support device. By connecting it to the main beam with the tail beam section and rear support leg removed, and the mobile trolley set at its bottom, the temporary support device can play a temporary support role, reducing the risk of overturning during beam feeding. At the same time, it also solves the problem that the bridge erecting machine cannot move longitudinally when the tail beam section of the main beam of the bridge erecting machine is removed, resulting in the bridge erecting machine being unable to move longitudinally without the rear support leg.

[0025] 2. This utility model provides a bridge erecting machine, in which the temporary support device replaces the rear outrigger of the bridge erecting machine, thereby reducing the risk of the bridge erecting machine overturning during beam feeding and solving the problem that the bridge erecting machine cannot move longitudinally when the rear outrigger is missing. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of a temporary support device.

[0027] Figure 2 This is a plan view of a bridge erecting machine with a tail beam section in the prior art.

[0028] Figure 3 This is a plan view of a bridge erecting machine that removes the tail beam section in the existing technology.

[0029] Figure 4 For those with Figure 1 A side view of a bridge erecting machine with a temporary support device.

[0030] Figure 5 For those with Figure 1 A schematic diagram of a single main beam connection of a bridge erecting machine with a temporary support device.

[0031] Marked in the image:

[0032] 1-Temporary support device,

[0033] 101-Support component, 102-Heightening component, 103-Base, 104-Anti-slip pad, 105-Mobile trolley

[0034] 2-Middle support leg,

[0035] 3-Foreleg,

[0036] 4-Main beam,

[0037] 401 - Tail beam segment, 402 - Middle beam segment, 403 - Front beam segment

[0038] 5- Crane trolley,

[0039] 6-First beam segment,

[0040] 7-Second beam segment,

[0041] 8-Cap beam,

[0042] 9-Connecting components. Detailed Implementation

[0043] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0044] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0045] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0046] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0047] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0048] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0049] Example 1

[0050] like Figure 1 As shown, a temporary support device includes a support component 101, a base 103, and a movable trolley 105.

[0051] The top end of the support component 101 is bolted to the main beam 4 of the bridge erecting machine. Both the top and bottom ends of the support component 101 are provided with end plates, which are rectangular and larger than the cross-section of the support component 101. The end plates have several screw holes. Several stiffening ribs are provided between the end plates and the side walls of the support component 101 to strengthen the connection. The height of the support component 101 is 1200mm.

[0052] The base 103 is connected to the bottom end of the support component 101. The top surface of the base 103 has an end plate, which is rectangular and larger than the cross-section of the base 103. The end plate has several screw holes. Several stiffening ribs are provided between the end plate and the side wall of the base 103 to strengthen the connection. The height of the base 103 is 200mm.

[0053] The movable trolley 105 is connected to the bottom of the base 103.

[0054] In an optional embodiment, a heightening component 102 may be provided between the support component 101 and the base 103. The heightening component 102 has end plates at both its top and bottom ends. These end plates are rectangular and their dimensions are larger than the cross-section of the heightening component 102. The end plates have several screw holes. Several stiffening ribs are provided between the end plates and the sidewalls of the heightening component 102 to strengthen the connection. The height of the heightening component 102 can be 300mm-1000mm, specifically 300mm, 400mm, 500mm, 600mm, 700mm, 800mm, 900mm, and 1000mm, to meet different needs. The end plates of the support component 101, the heightening component 102, and the base 103 are all the same size, and the corresponding screw holes are also in the same position, allowing them to be connected to each other by bolts.

[0055] In an optional embodiment, the support component 101, the base 103, and the heightening component 102 can all be made of steel pipe.

[0056] In an optional embodiment, the steel pipe can be a rectangular steel pipe or a circular steel pipe. The cross-section of the rectangular steel pipe can be 360mm×160mm×10mm or 380mm×180mm×10mm. The diameter of the circular steel pipe can be 300mm-360mm, specifically 300mm, 320mm, 340mm or 360mm, and the wall thickness can be 10mm-16mm, specifically 10mm, 12mm, 14mm or 16mm. The end plates of the supporting component 101, the heightening component 102, and the base 103 can all be 500mm×300mm steel plates, and the thickness of the steel plates can be 10mm-15mm, specifically 10mm, 12mm, 14mm or 15mm.

[0057] In an optional embodiment, the support component 101 can be connected to the main beam 4 via U-bolts. The main beam 4 is a truss structure, and the specific support component 101 can be connected to the bottom horizontal bar of the truss structure via U-bolts. The U-bolts are wound around the horizontal bar, and the threaded shank of the U-bolt passes through a threaded hole on the end plate of the support component 101. A nut is then fitted onto the threaded shank for tightening. Each support component 101 can be equipped with two U-bolts to enhance the stability of the connection.

[0058] In an optional embodiment, the movable trolley 105 may include a flat plate, two side plates, and a plurality of rollers. The two side plates are connected below the flat plate, and the plurality of rollers are connected between the two side plates. Specifically, the rollers may be arranged in two rows, with six rollers in each row. The rollers are equipped with braking devices. The load-bearing capacity of the movable trolley 105 may be 60 tons to 120 tons to ensure that the movable trolley 105 has sufficient load-bearing capacity to support the load transmitted from the main beam 4. Specifically, the load-bearing capacity may be 60 tons, 70 tons, 80 tons, 90 tons, 100 tons, 110 tons, or 120 tons.

[0059] In an optional embodiment, an anti-slip pad 104 may be provided between the movable trolley 105 and the base 103. The anti-slip pad 104 may be circular or square, and its thickness may be 20mm-60mm, specifically 20mm, 30mm, 40mm, 50mm and 60mm.

[0060] In an optional embodiment, the anti-slip pad 104 may be a rubber pad.

[0061] Example 2

[0062] This embodiment will specifically describe the use of a temporary support device as described in Embodiment 1 on a bridge erecting machine.

[0063] Figure 2 The diagram illustrates a plan view of a bridge erecting machine with a tail beam segment 401 installed on a curved bridge. The overall length of the machine exceeds the bridge deck. Furthermore, because the highest point of the first beam segment 6 to be erected exceeds the lowest point of the main beam 4 of the machine, the first beam segment 6 cannot enter the area between the two main beams 4 through the side of the main beam 4. It can only enter the area below the two main beams 4 through the end of the tail beam segment 401 of the main beam 4 to complete the beam feeding operation. Clearly, as... Figure 2 As shown, the tail beam segment 401 of the bridge erecting machine has exceeded the bridge deck area, making it impossible to complete the beam feeding operation. To achieve the beam feeding operation, as follows... Figure 3 As shown, the tail beam section 401 of the bridge erecting machine is removed. Since the rear support leg of the bridge erecting machine is connected to the removed tail beam section 401, the bridge erecting machine with the tail beam section 401 and the rear support leg removed cannot move longitudinally without the rear support leg, which also increases the risk of overturning during the beam feeding process.

[0064] Based on the above, in this embodiment, as follows: Figure 4 As shown, a bridge erecting machine is provided, including a front beam section 403, a middle beam section 402, a front support leg 3, a middle support leg 2, and a temporary support device 1.

[0065] The temporary support device 1 is connected to the lower end of the middle beam section 402 away from the front beam section 403. The temporary support device 1 serves to replace the original rear support leg.

[0066] During the preparation for erecting the first beam segment 6, the temporary support device 1 and the middle support leg 2 are supported on the second beam segment 7, which is a precast beam segment already installed on the cap beam 8. The front support leg 3 is supported on the cap beam 8 on which the precast beam segment to be erected is located.

[0067] Above the middle beam section 402 of the main beam 4 are two lifting trolleys 5. When the first beam 6 enters the bottom of the bridge erecting machine via the beam transport trolley, the two lifting trolleys 5 can connect to the two ends of the first beam 6 respectively, lift the first beam 6, and then move it in the direction of the forward support leg 3. When it moves to the predetermined position, the first beam 6 is lowered and installed on the cap beam 8 to complete the erection operation of the precast beam.

[0068] When the bridge erecting machine needs to move forward, the movable trolley 105 at the bottom of the temporary support device 1 can assist the bridge erecting machine in moving forward, passing through holes, and other operations.

[0069] In optional implementations, such as Figure 5As shown, the middle beam segment 402 includes two beam frames, each of which can be connected to two temporary support devices 1. The two temporary support devices 1 are arranged side by side, and a connecting component 9 is provided between the support components 101 of the two temporary support devices 1. The connecting component 9 is a steel component, arranged horizontally, and its two ends are connected to the two support components 101 respectively by welding.

[0070] After the curved bridge is erected, when resuming construction of the straight bridge, the temporary support device 1 can be easily removed, and the tail beam segment 401 can be reconnected to the middle beam segment 402 of the bridge erecting machine. Therefore, the temporary support device described in this utility model can also be quickly deployed and dismantled to reduce construction preparation time, improve the overall construction progress, and facilitate rapid transfer between different construction stages and locations.

[0071] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A temporary support device, characterized in that, include Support component (101), the top end of which is used to be bolted to the main beam (4) of the bridge erecting machine; A base (103) is connected to the bottom end of the support member (101); A movable trolley (105) is connected below the base (103).

2. A temporary support device according to claim 1, characterized in that, A heightening component (102) is provided between the support component (101) and the base (103).

3. A temporary support device according to claim 2, characterized in that, The support component (101), the base (103), and the heightening component (102) are all made of steel pipe.

4. A temporary support device according to claim 3, characterized in that, The steel pipe is a rectangular steel pipe or a circular steel pipe.

5. A temporary support device according to any one of claims 1-4, characterized in that, The support component (101) is connected to the main beam (4) by saddle bolts.

6. A temporary support device according to claim 5, characterized in that, The movable trolley (105) includes a flat plate, two side plates and several rollers, with the two side plates connected below the flat plate and the several rollers connected between the two side plates.

7. A temporary support device according to claim 5, characterized in that, An anti-slip pad (104) is provided between the movable trolley (105) and the base (103).

8. A temporary support device according to claim 7, characterized in that, The anti-slip pad (104) is a rubber pad.

9. A bridge erecting machine, characterized in that, It includes a front beam section (403), a middle beam section (402), a front support leg (3), a middle support leg (2), and a temporary support device as described in any one of claims 1-8, wherein the temporary support device (1) is connected below the middle beam section (402) at the end away from the front beam section (403).

10. A bridge erecting machine according to claim 9, characterized in that, The middle beam section (402) includes two beam frames, each beam frame is connected to two temporary support devices (1), the two temporary support devices (1) are arranged side by side, and a connecting component (9) is provided between the support components (101) of the two temporary support devices (1).

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