Pushing system for steel beams

Abstract

The application discloses a pushing system for a steel beam, which comprises a sliding base body, a sliding surface formed on the sliding base body, a first bearing part movably arranged on the sliding surface and adapted to bear a steel truss, the first bearing part being provided with a plurality of layers of first supporting pads arranged in sequence in a thickness direction, a second bearing part arranged on the sliding surface and adapted to bear the steel truss, the second bearing part being provided with a plurality of layers of second supporting pads arranged in sequence in the thickness direction, a first driving part arranged on the sliding base body, a driving end of the sliding base body being connected with the first bearing part to drive the steel truss to move in a first direction, and a second driving part arranged on one side of the sliding base body in a second direction and adapted to drive the steel truss to move in the second direction. The pushing system designed according to the application is characterized in that the first driving part and the second driving part are respectively adapted to drive the steel truss to move in the first direction and the second direction, so that the steel truss can be adjusted in real time in a position during assembly.

Description

Technical Field

[0001] This invention relates to the field of steel beam construction equipment, and in particular to a jacking system for steel beams. Background Technology

[0002] In related technologies, the dragging method is often used in bridge construction for large-tonnage steel trusses during jacking construction. The principle of the dragging method is that the steel truss is supported on sliding shoes, and steel strands drag the sliding shoes, thus propelling the steel truss forward. Conventional jacking and dragging methods include dragging jacking, walking jacking, and hydraulic rail-clamping jacking. Compared to other jacking methods, the dragging method is more traditional, has a clearer structural system, and its construction steps are simple, safe, easy to operate, and quick, effectively ensuring the project schedule. However, the dragging method cannot adjust the steel truss position in real time. When deviations occur in the steel truss's position, it cannot be adjusted promptly, and adjusting the position is relatively difficult, resulting in lower assembly efficiency for the steel truss. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, one object of this invention is to provide a jacking system for steel beams. According to the jacking system designed according to this invention, its first drive unit and second drive unit are respectively adapted to drive the steel truss to move in a first direction and a second direction, so that the steel truss can adjust its position in real time during assembly.

[0004] The jacking system according to the present invention includes: a sliding base on which a slide surface is formed; a first bearing portion movably disposed on the slide surface and adapted to bear the steel truss, the first bearing portion being provided with multiple layers of first support pads arranged sequentially in the thickness direction; a second bearing portion disposed on the slide surface and adapted to bear the steel truss, the second bearing portion being provided with multiple layers of second support pads arranged sequentially in the thickness direction; a first driving portion disposed on the sliding base, the driving end of the sliding base being connected to the first bearing portion to drive the steel truss to move along the slide surface in a first direction; and a second driving portion disposed on one side of the sliding base in a second direction, the second driving portion being adapted to drive the steel truss to move relative to the sliding base in the second direction.

[0005] According to the jacking system of the present invention, the first driving unit can drive the steel truss to move in a first direction, and the second driving unit can drive the steel truss to move in a second direction, so that the steel truss can be accurately installed to a preset position. At the same time, the first driving unit and the second driving unit can adjust the position of the steel truss in real time during the assembly process, thereby improving the assembly efficiency of the steel truss.

[0006] According to some embodiments of the present invention, the first bearing portion includes: a sliding shoe, the sliding shoe being movably disposed on the slide surface, the top of the sliding shoe having a first supporting end face; and a first supporting pad, the first supporting pad being constructed as multiple layers disposed at intervals on the first supporting end face.

[0007] According to some embodiments of the present invention, a reaction seat is provided on the sliding base, the reaction seat is formed with reaction surfaces orthogonal to the slide surface and the first direction respectively, the first driving part is disposed on the reaction surface, and the output end of the first driving part is connected to the slide shoe through a flexible connector to drive the slide shoe to move on the slide surface.

[0008] According to some embodiments of the present invention, the first driving part includes: a first driving device and a second driving device, the first driving device and the second driving device being arranged at intervals along a second direction on the reaction surface; wherein a first connecting pulley and a second connecting pulley are respectively provided on both sides of the slipper in the second direction, and the output end of the first driving device and the output end of the second driving device are respectively connected to the first connecting pulley and the second connecting pulley by ropes passing around them.

[0009] According to some embodiments of the present invention, the second driving part is disposed on at least one side of the sliding base in the second direction, and the output end of the second driving part is connected to the steel truss to be adapted to drive the steel truss to move relative to the sliding base in the second direction.

[0010] According to some embodiments of the present invention, the second driving unit includes: a third driving device disposed on one side of the sliding base in a second direction; and a fourth driving device disposed on the other side of the sliding base in the second direction; wherein the output ends of the third driving device and the fourth driving device are respectively connected to the steel truss to drive the steel truss to move in the second direction.

[0011] According to some embodiments of the present invention, the second bearing portion includes a second support pad, which is configured as multiple layers disposed at intervals on the slide surface.

[0012] According to some embodiments of the present invention, it further includes: a lifting device disposed at the top end of the second bearing portion, the output end of the lifting device being selectively movable, and the output end of the lifting device being adapted to support the steel truss to adjust the height of the steel truss.

[0013] According to some embodiments of the present invention, the second bearing portion and the lifting device are configured as a plurality of components arranged sequentially in a second direction.

[0014] According to some embodiments of the present invention, the sliding base includes: a slide beam; a slide metal plate, the slide metal plate being disposed on the top of the slide beam and forming the slide surface.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of the connection between the jacking system and the steel truss according to an embodiment of the present invention;

[0018] Figure 2 This is a top view of the jacking system according to an embodiment of the present invention;

[0019] Figure 3 This is a side view of the jacking system near the first bearing part according to an embodiment of the present invention;

[0020] Figure 4 This is a side view of the jacking system near the second bearing part according to an embodiment of the present invention.

[0021] Figure label:

[0022] 1. Pricing system; 2. Steel truss;

[0023] 10. Sliding base; 11. Reaction seat; 12. Slide beam; 13. Slide metal plate;

[0024] 20. First load-bearing part; 21. Slipper; 22. First support pad;

[0025] 30. Second bearing part; 31. Second support pad; 32. Lifting device; 33. Third support pad;

[0026] 40. First drive unit; 41. First drive device; 42. Second drive device;

[0027] 51. Third drive unit; 52. Fourth drive unit. Detailed Implementation

[0028] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In related technologies, the dragging method is often used in bridge construction for large-tonnage steel trusses during jacking construction. The principle of the dragging method is that the steel truss is supported on sliding shoes, and steel strands drag the sliding shoes, thus propelling the steel truss forward. Conventional jacking and dragging methods include dragging jacking, walking jacking, and hydraulic rail-clamping jacking. Compared to other jacking methods, the dragging method is more traditional, has a clearer structural system, and its construction steps are simple, safe, easy to operate, and quick, effectively ensuring the project schedule. However, the dragging method cannot adjust the steel truss position in real time. When deviations occur in the steel truss's position, it cannot be adjusted promptly, and adjusting the position is relatively difficult, resulting in lower assembly efficiency for the steel truss.

[0034] The following is for reference. Figures 1-4 A jacking system 1 for steel beams according to an embodiment of the present invention is described.

[0035] like Figures 1-4 As shown, the jacking system 1 according to the present invention includes: a sliding base 10, a first bearing portion 20, a second bearing portion 30, a first driving portion 40, and a second driving portion. A slide rail surface is formed on the sliding base 10. The first bearing portion 20 is movably disposed on the slide rail surface and is adapted to bear the steel truss 2. The first bearing portion 20 is provided with multiple layers of first support pads 22 arranged sequentially in the thickness direction. The second bearing portion 30 is disposed on the slide rail surface and is adapted to bear the steel truss 2. In some embodiments, the first bearing portion 20 and the second bearing portion 30 are spaced apart in a first direction. The steel truss 2 is installed on the slide surface and adapted to support it, thereby allowing the steel truss 2 to be stably supported on the jacking system 1. The second bearing part 30 is provided with multiple layers of second support pads 31 arranged sequentially in the thickness direction. The first drive part 40 is provided on the sliding base 10, and the drive end of the sliding base 10 is connected to the first bearing part 20 to drive the steel truss 2 to move along the slide surface in the first direction. The second drive part is provided on one side of the sliding base 10 in the second direction and is adapted to drive the steel truss 2 to move relative to the sliding base 10 in the second direction. It is worth mentioning that the number of the first support pads 22 and the second support pads 31 is adjusted according to the distance between the surface of the steel truss 2 facing the slide surface and the slide surface.

[0036] Understandably, when assembling the steel truss 2, the steel truss 2 is first placed on top of the first support and the second support. The first support and the second support are suitable for supporting the steel truss 2. Subsequently, the first drive unit 40 drives the first support to move in the first direction to drive the steel truss 2 to move in the first direction. At the same time, the second drive unit can drive the steel truss 2 to move relative to the sliding base 10 in the second direction. Thus, the first drive unit 40 and the second drive unit can respectively drive the steel truss 2 to move in the first direction and the second direction so that the steel truss 2 can be accurately installed in the preset position. The first drive unit 40 and the second drive unit can adjust the position of the steel truss 2 in real time during the assembly process of the steel truss 2 to improve the assembly efficiency of the steel truss 2.

[0037] According to the jacking system 1 of the present invention, the first driving unit 40 can drive the steel truss 2 to move in a first direction, and the second driving unit can drive the steel truss 2 to move in a second direction, so that the steel truss 2 can be accurately installed in a preset position. At the same time, the first driving unit 40 and the second driving unit can adjust the position of the steel truss 2 in real time during the assembly process, thereby improving the assembly efficiency of the steel truss 2.

[0038] According to some embodiments of the present invention, such as Figures 1-4 As shown, the first support portion 20 includes a sliding shoe 21 and a first support pad 22. The sliding shoe 21 is movably disposed on the slide surface, and a first support end face is formed on the top of the sliding shoe 21. The first support pad 22 is constructed as multiple layers disposed at intervals on the first support end face. It can be understood that the first drive portion 40 is adapted to drive the sliding shoe 21 to move along the slide surface in a first direction. Compared with the first support pad 22, the sliding shoe 21 has a higher production cost. The sliding shoe 21 and multiple first support pads 22 together constitute the first support portion, and the multiple first support portions are stacked in the thickness direction and disposed on the first support end face. Thus, the volume of the sliding shoe 21 can be reduced through the above arrangement, thereby reducing the production cost of the jacking system 1. At the same time, the number of first support pads 22 can be adjusted according to the preset height of the steel truss 2, making the jacking system 1 more flexible and thus improving the applicability of the jacking system 1.

[0039] According to some embodiments of the present invention, such as Figures 1-4 As shown, a reaction seat 11 is provided on the sliding base 10. The reaction seat 11 forms reaction surfaces that are orthogonal to the slide surface and the first direction, respectively. The first driving part 40 is provided on the reaction surface. The output end of the first driving part 40 is connected to the slide shoe 21 through a flexible connector to drive the slide shoe 21 to move on the slide surface.

[0040] In some embodiments, in the first direction, the reaction seat 11 and the first bearing part 20 are spaced apart on the sliding base 10. The sliding base 10 is provided with a reaction surface, which is orthogonal to the first direction and the slide surface. A first driving part 40 is provided on the reaction surface, and the output end of the first driving part 40 is connected to the slide shoe 21 through a flexible connector. The flexible connector can prevent the output end of the first driving part 40 from directly contacting the slide shoe 21, thereby reducing the damage to the slide shoe 21 when the first driving part 40 drives the slide shoe 21 to move, and thus extending the service life of the slide shoe 21. At the same time, when the first driving part 40 drives the slide shoe 21 to move, the slide shoe 21 will generate an opposite force on the first driving part 40. The reaction seat 11 can balance the opposite force so that the first driving part 40 can stably drive the slide shoe 21 to move.

[0041] According to some embodiments of the present invention, such as Figures 1-4 As shown, the first drive unit 40 includes: a first drive device 41 and a second drive device 42, the first drive device 41 and the second drive device 42 are arranged at intervals along the second direction on the reaction surface; wherein the slipper 21 is provided with a first connecting pulley and a second connecting pulley on both sides in the second direction, and the output end of the first drive device 41 and the output end of the second drive device 42 are respectively connected to the first connecting pulley and the second connecting pulley by ropes passing around them.

[0042] Understandably, a first driving device 41 and a second driving device 42 are arranged on the reaction surface, spaced apart in the second direction. A first connecting pulley and a second connecting pulley are respectively arranged on both sides of the slipper 21 in the second direction. Two ropes are provided; the ropes can be steel ropes, etc., without limitation. One of the two ropes passes over the first connecting pulley and connects to the output shaft of the first driving device 41, and the other rope passes over the second connecting pulley and connects to the output shaft of the second driving device 42. Thus, the slipper 21 is subjected to force at both ends in the second direction to move, allowing the slipper 21 to move more stably along the first direction. It is worth mentioning that the first driving device 41 and the second driving device 42 can be hydraulic cylinders, etc., without limitation.

[0043] According to some embodiments of the present invention, such as Figures 1-4 As shown, the second drive unit is disposed on at least one side of the sliding base 10 in the second direction, and the output end of the second drive unit is connected to the steel truss 2 to be adapted to drive the steel truss 2 to move relative to the sliding base 10 in the second direction.

[0044] In some embodiments, a second driving part is provided on one side of the sliding base 10 in the second direction, and the output shaft of the second driving part is connected to the steel truss 2. The output shaft of the second driving part reciprocates along the second direction to push or pull the steel truss 2 to move in the second direction. In other embodiments, a second driving part is provided on both sides of the sliding base 10 in the second direction, and the output shafts of the two second driving parts abut against the two end faces of the sliding base 10 in the second direction. The output shafts of the two second driving parts are respectively adapted to push the sliding base 10 to move in the second direction. In other embodiments, a second driving part is provided on both sides of the sliding base 10 in the second direction, and the output shafts of the two second driving parts are respectively connected to the sliding base 10. The two second driving parts jointly drive the steel truss 2 to move in the second direction. No limitation is made here.

[0045] According to some embodiments of the present invention, such as Figures 1-4 As shown, the second driving unit includes a third driving device 51 and a fourth driving device 52. The third driving device 51 is disposed on one side of the sliding base 10 in the second direction, and the fourth driving device 52 is disposed on the other side of the sliding base 10 in the second direction. The output ends of the third driving device 51 and the fourth driving device 52 are respectively connected to the steel truss 2 to drive the steel truss 2 to move in the second direction.

[0046] Understandably, the third drive device 51 and the fourth drive device 52 are respectively disposed on both sides of the sliding base 10 in the second direction. When the sliding base 10 moves towards the side closer to the third drive device 51, the third drive device 51 applies a pulling force to the sliding base 10, and the fourth drive device 52 applies a pushing force to the sliding base 10. Similarly, when the sliding base 10 moves towards the side closer to the fourth drive device 52, the third drive device 51 applies a pushing force to the sliding base 10, and the fourth drive device 52 applies a pulling force to the sliding base 10. Thus, the third drive device 51 and the fourth drive device 52 jointly drive the sliding base 10 to move in the second direction, improving the moving efficiency of the sliding base 10 in the second direction. At the same time, the output ends of the third drive device 51 and the fourth drive device 52 can jointly restrict the movement of the sliding base 10, improving the moving stability of the sliding base 10. It is worth mentioning that the third drive device 51 and the fourth drive device 52 can be hydraulic cylinders, etc., and there are no restrictions here.

[0047] According to some embodiments of the present invention, such as Figures 1-4As shown, the second bearing part 30 includes a second support pad 31, which is constructed as multiple layers spaced apart on the slide surface. It can be understood that multiple second support pads 31 are stacked in the thickness direction to support the steel truss 2. At the same time, the number of second support pads 31 can be adjusted according to the preset height of the steel truss 2, making the jacking system 1 more flexible and improving the applicability of the jacking system 1.

[0048] According to some embodiments of the present invention, such as Figures 1-4 As shown, the jacking system 1 further includes a lifting device 32, which is disposed at the top of the second bearing portion 30. The output end of the lifting device 32 is selectively movable and adapted to support the steel truss 2 to adjust its height. It is understood that the lifting device 32 is disposed at the top of the second bearing portion 30, and its output end abuts against the end face of the steel truss 2 facing the sliding base 10. The output end of the lifting device 32 can reciprocate in the height direction, thereby driving the steel truss 2 to move in the height direction and lifting it to a preset height position. It is worth noting that the lifting device 32 can be a hydraulic cylinder, etc., and is not limited here. In some embodiments, a third support pad 33 is provided between the output end of the lifting device 32 and the steel truss 2. The third support pad 33 can increase the contact area between the lifting device 32 and the steel truss 2, allowing the lifting device 32 to stably drive the steel truss 2 to move, thereby improving the stability of the steel truss 2 when moving in the height direction.

[0049] According to some embodiments of the present invention, such as Figures 1-4 As shown, the second bearing portion 30 and the lifting device 32 are configured as a plurality of units arranged sequentially in the second direction. It can be understood that the plurality of second bearing portions 30 are spaced apart in the second direction, and each second bearing portion 30 is provided with a lifting device 32. Thus, the plurality of lifting devices 32 spaced apart in the second direction jointly drive the steel truss 2 to move in the height direction, so that the steel truss 2 can move more stably in the height direction.

[0050] According to some embodiments of the present invention, such as Figures 1-4 As shown, the sliding base 10 includes a slide beam 12 and a slide metal plate 13, which extend in a first direction. The slide metal plate 13 is disposed on the top of the slide beam 12 and forms a slide surface. The sliding shoe 21 is movably disposed on the slide surface. Notably, an MGB slide plate (engineering plastic slide plate) is disposed on the surface of the sliding shoe 21 facing the slide surface, and the sliding shoe 21 is movably connected to the slide surface via the MGB slide plate.

[0051] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0052] Although embodiments of the present invention have been shown and described above, variations, modifications, substitutions and alterations can be made to the above embodiments.

Claims

1. A jacking system for steel beams, said steel beam jacking system being adapted to drive the movement of steel truss beams, characterized in that, include: A sliding base having a sliding track surface formed thereon; A first bearing portion is movably disposed on the slide surface and adapted to support a steel truss. The first bearing portion is provided with multiple layers of first support pads arranged sequentially in the thickness direction. The first bearing portion includes: a sliding shoe, which is movably disposed on the slide surface, and a first support end face is formed on the top of the sliding shoe; the first support pads are constructed as multiple layers spaced apart on the first support end face; a reaction seat is provided on the sliding base, and the reaction seat forms reaction surfaces that are orthogonal to the slide surface and the first direction respectively. A second bearing portion is disposed on the slide surface and adapted to support the steel truss. The second bearing portion is provided with multiple layers of second support pads arranged sequentially in the thickness direction. The second bearing portion includes: the second support pads are configured to be multiple layers spaced apart on the slide surface; and a lifting device is disposed at the top of the second bearing portion. The output end of the lifting device is selectively movable and adapted to support the steel truss to adjust the height of the steel truss. The second bearing portion and the lifting device are configured to be multiple layers arranged sequentially in the second direction. A first driving unit is disposed on the sliding base. The driving end of the sliding base is connected to the first bearing unit to drive the steel truss to move along the slide surface in a first direction. The first driving unit is disposed on the reaction surface. The output end of the first driving unit is connected to the sliding shoe through a flexible connector to drive the sliding shoe to move on the slide surface. A second driving unit is disposed on one side of the sliding base in the second direction, and the second driving unit is adapted to drive the steel truss to move relative to the sliding base in the second direction.

2. The jacking system for steel beams according to claim 1, characterized in that, The first driving unit includes: A first driving device and a second driving device are arranged at intervals along a second direction on the reaction surface; wherein a first connecting pulley and a second connecting pulley are respectively provided on both sides of the slipper in the second direction, and the output ends of the first driving device and the second driving device are respectively connected by ropes passing around the first connecting pulley and the second connecting pulley.

3. The jacking system for steel beams according to claim 1, characterized in that, The second driving unit is disposed on at least one side of the sliding base in the second direction, and the output end of the second driving unit is connected to the steel truss to drive the steel truss to move relative to the sliding base in the second direction.

4. The jacking system for steel beams according to claim 3, characterized in that, The second drive unit includes: A third driving device is disposed on one side of the sliding base in the second direction; A fourth driving device is disposed on the other side of the sliding base in the second direction; wherein the output ends of the third driving device and the fourth driving device are respectively connected to the steel truss to drive the steel truss to move in the second direction.

5. The jacking system for steel beams according to claim 1, characterized in that, The sliding substrate includes: Slide beam; A slide rail metal plate, which is disposed on the top of the slide rail beam and forms the slide rail surface.

Images