Steel beam transverse pushing and sliding device

Abstract

The utility model discloses a kind of steel beam transverse push sliding devices, it is related to bridge construction equipment field, technical scheme is, including slide rail beam and the sliding of several sliding seats on slide rail beam, steel beam is placed on sliding seat, still be provided with several groups of push mechanism on slide rail beam;Each group of push mechanism includes the counterforce seat of detachable setting on slide rail beam, and the push seat of sliding setting on slide rail beam, jack is arranged between counterforce seat and push seat;Counterforce seat includes the frame of rectangle, two fixed plates are fixedly arranged on the lower surface of frame, one end of fixed plate extends to the outside of frame and is provided with connecting hole;Sliding seat and push seat all include the base of by steel plate welding, the lower surface of base is fixedly arranged sliding plate.The beneficial effects of the utility model are: easy to operate, hole is easy, significantly improve on-site assembly efficiency, reduce worker operation difficulty.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction equipment, and in particular to a transverse jacking and sliding device for steel beams. Background Technology

[0002] In the construction of bridges or large-span steel structures that cross existing obstacles such as roads, railways, and rivers, the lateral jacking and sliding method is often used for steel beam installation. This method allows for the assembly of steel beams, either as a whole or in sections, at an off-site assembly site without interrupting traffic or navigation below. The beams are then laterally slid to their designed positions using a jacking device. This method offers advantages such as construction safety, minimal environmental impact, and high efficiency.

[0003] In existing technologies, lateral jacking and sliding devices typically include a slide rail beam, a sliding support, and a jacking mechanism. The jacking mechanism often employs a large-stroke jack in conjunction with a reaction structure to transmit thrust. However, traditional devices have the following shortcomings: The reaction seat has a complex connection and low operation efficiency: The reaction seat is often connected to the slide rail beam by opening a large-diameter pin hole in the web of the slide rail beam and inserting a heavy-duty long pin. Such pins are heavy, difficult to handle manually and insert into the hole, and the installation is time-consuming. In addition, the hole accuracy requirements are high, which significantly increases the labor intensity of on-site workers.

[0004] Limited jacking accuracy and difficulty in correction: Due to the small number and large spacing of the connection holes on the slide rail beam used to install the reaction seat, the jacking stroke is long each time, and it is difficult to frequently adjust the position during the process; especially in the near-positioning stage, if the jacking is not accurate in one push, the equipment needs to be disassembled and reassembled repeatedly for fine adjustment, which seriously affects the construction efficiency and positioning accuracy.

[0005] Poor adaptability of the equipment: The existing jacking system is bulky and difficult to adjust the configuration flexibly according to the weight, span or site conditions of the steel beam. For the lateral sliding construction of ultra-wide and ultra-heavy steel beams, it is often necessary to customize special equipment, which is not economical. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model provides a transverse jacking and sliding device for steel beams.

[0007] The technical solution includes a slide rail beam and several sliding seats that slide on the slide rail beam. A steel beam is placed on the sliding seats, and several sets of jacking mechanisms are also provided on the slide rail beam. Each set of the jacking mechanism includes a detachable reaction seat mounted on the slide rail beam and a jacking seat slidably mounted on the slide rail beam, with a jack provided between the reaction seat and the jacking seat; The reaction seat includes a rectangular frame, and two fixing plates are fixedly disposed on the lower surface of the frame. One end of each fixing plate extends to the outside of the frame and has a connecting hole. Both the sliding seat and the pushing seat include a base welded from steel plates, and a sliding plate is fixedly installed on the lower surface of the base; Mounting plates are provided in the middle of both the frame and the jacking base. Mounting holes are provided on the mounting plates, and the two ends of the jack are connected to the mounting holes by pins.

[0008] Preferably, the slide rail beam is a double-web H-beam, with a slide rail plate provided on one of its upward-facing flanges, and several positioning holes are provided on the flanges on both sides of the slide rail plate. The reaction seat is detachably connected to the slide rail beam by bolts passing through the connecting hole and a corresponding set of positioning holes.

[0009] Preferably, a limiting plate is provided at each end of the lower surface of the frame and the base.

[0010] Preferably, the slide plate is made of stainless steel or polytetrafluoroethylene.

[0011] Preferably, an oil groove is provided on the side of the sliding plate opposite to the base.

[0012] The beneficial effects of the technical solution provided by this utility model embodiment are as follows: the reaction seat is detachably connected to the slide rail beam through the connecting hole on the fixed plate, and the fixing is completed by bolts passing through the connecting hole and the positioning hole. The operation is simple and the hole alignment is easy, which significantly improves the on-site assembly efficiency and reduces the difficulty of workers' operation. Several positioning holes are provided on the upper flange of the slide rail beam, which are densely distributed along the sliding direction, so that the reaction seat can be flexibly installed in different positions as needed. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0014] Figure 2 This is a schematic diagram of the jacking mechanism and slide rail beam according to an embodiment of the present utility model.

[0015] Figure 3 This is a schematic diagram of the reaction seat according to an embodiment of the present utility model.

[0016] Figure 4 This is a schematic diagram of the pusher seat according to an embodiment of the present utility model.

[0017] The attached diagram is labeled as follows: 1. Slide rail beam; 2. Sliding seat; 3. Steel beam; 4. Pushing mechanism; 5. Reaction seat; 6. Pushing seat; 7. Jack; 8. Frame; 9. Fixing plate; 10. Connecting hole; 11. Base; 12. Sliding plate; 13. Mounting plate; 14. Slide plate; 15. Positioning hole; 16. Bolt; 17. Limiting plate; 18. Oil tank. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are only for explaining this utility model and are not intended to limit it.

[0019] It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Example 1 See Figures 1 to 4 This utility model provides a transverse jacking and sliding device for steel beams, including a slide rail beam 1 and several sliding seats 2 that slide on the slide rail beam 1. A steel beam 3 is placed on the sliding seats 2, and several sets of jacking mechanisms 4 are also provided on the slide rail beam 1. Each jacking mechanism 4 includes a detachable reaction seat 5 mounted on the slide rail beam 1 and a jacking seat 6 slidably mounted on the slide rail beam 1. A jack 7 is provided between the reaction seat 5 and the jacking seat 6. The reaction seat 5 includes a rectangular frame 8, and two fixing plates 9 are fixedly installed on the lower surface of the frame 8. One end of the fixing plate 9 extends to the outside of the frame 8 and has a connecting hole 10. Both the sliding seat 2 and the push seat 6 include a base 11 welded from steel plates, and a sliding plate 12 is fixedly installed on the lower surface of the base 11. Mounting plates 13 are provided in the middle of both the frame 8 and the jacking seat 6. Mounting holes are provided on the mounting plates 13. The two ends of the jack 7 are connected to the mounting holes by pins.

[0023] The slide rail beam 1 is erected at the predetermined position as the track foundation for lateral sliding. The sliding seat 2 is placed on the slide rail beam 1, and the steel beam 3 to be laterally moved is placed on top of the sliding seat 2, with the sliding seat 2 bearing the load of the steel beam 3. Several sets of jacking mechanisms 4 are set on the slide rail beam 1, and the reaction seat 5 is detachably fixed to the slide rail beam 1 through the connecting hole 10 on its fixing plate 9. The jacking seat 6 is slidably placed on the slide rail beam 1, located between or adjacent to the reaction seat 5 and the sliding seat 2; A jack 7 is installed between the reaction seat 5 and the push seat 6. The two ends of the jack 7 are respectively hinged to the mounting plate 13 in the middle of the reaction seat 5 and the push seat 6 by pins. When jack 7 is activated and extended, one end of its cylinder body abuts against the reaction seat 5, and the other end pushes the push seat 6 to slide along the slide rail beam 1. The push seat 6 then pushes the sliding seat 2 and the steel beam 3 on it to move laterally in sync. After completing one stroke, the removable reaction seat 5 is moved forward and reinstalled on the slide rail beam 1 in a new position, and then the next round of jacking is carried out until the steel beam 3 is in place.

[0024] The slide rail beam 1 is a double-web H-beam, with a slide rail plate 14 on one of its upward flanges, and several positioning holes 15 are opened on the flanges on both sides of the slide rail plate 14. The reaction seat 5 is detachably connected to the slide rail beam 1 by bolts 16 passing through the connecting hole 10 and a corresponding set of positioning holes 15.

[0025] Place the reaction seat 5 on the slide rail beam 1, aligning the connecting hole 10 on its fixing plate 9 with a set of positioning holes 15 on the flange; insert the bolt 16 and tighten it, so that the reaction seat 5 is detachably connected to the slide rail beam 1. After the jack 7 completes one stroke, loosen the bolt 16, move the reaction seat 5 along the slide rail beam 1 to the position of the next set of positioning holes 15, re-insert the bolt 16 to fix it, and carry out the next round of jacking.

[0026] A limiting plate 17 is provided at each end of the lower surface of the frame 8 and the base 11.

[0027] Limiting plates 17 are provided at both ends of the lower surface of the frame 8 of the reaction seat 5 and the base 11 of the sliding seat 2 and the jacking seat 6, so that they are laterally constrained when sliding or fixed on the slide rail beam 1, so as to avoid lateral displacement or overturning caused by uneven load, uneven friction or external force interference.

[0028] The slide plate 14 is made of stainless steel or polytetrafluoroethylene.

[0029] Stainless steel plates have a smooth surface and high hardness, while polytetrafluoroethylene plates have an extremely low coefficient of friction. Both can be used as materials for the slide plate 14 to effectively reduce the frictional resistance of the sliding seat 2 and the jacking seat 6 when they move on the slide beam 1, making the jacking process more effortless and stable.

[0030] An oil groove 18 is provided on the side of the sliding plate 12 that is away from the base 11.

[0031] Lubricating oil or grease should be applied between the sliding plate 12 and the slide rail 14. The lubricating oil and grease can significantly reduce the coefficient of friction between the sliding plate 12 and the slide rail 14, thereby reducing the thrust required by the jack 7, which is beneficial for selecting smaller tonnage equipment or increasing the safety margin. The oil groove 18 can store the lubricating medium and continuously supply oil to the sliding interface during the sliding process, avoiding increased friction or local wear due to insufficient lubrication, and ensuring the smoothness of the sliding.

[0032] When using this utility model, the slide rail beam 1 is erected at a predetermined position as the track foundation for lateral sliding, the sliding seat 2 is placed on the slide rail beam 1, and the steel beam 3 to be laterally moved is placed on top of the sliding seat 2, with the sliding seat 2 bearing the load of the steel beam 3. Several sets of jacking mechanisms 4 are set on the slide rail beam 1, and the reaction seat 5 is detachably fixed to the slide rail beam 1 through the connecting hole 10 on its fixing plate 9. The jacking seat 6 is slidably placed on the slide rail beam 1, located between or adjacent to the reaction seat 5 and the sliding seat 2; A jack 7 is installed between the reaction seat 5 and the push seat 6. The two ends of the jack 7 are respectively hinged to the mounting plate 13 in the middle of the reaction seat 5 and the push seat 6 by pins. When jack 7 is activated and extended, one end of its cylinder body abuts against the reaction seat 5, and the other end pushes the push seat 6 to slide along the slide rail beam 1. The push seat 6 then pushes the sliding seat 2 and the steel beam 3 on it to move laterally in sync. After completing one stroke, the removable reaction seat 5 is moved forward and reinstalled on the slide rail beam 1 in a new position, and then the next round of jacking is carried out until the steel beam 3 is in place.

[0033] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A transverse jacking and sliding device for steel beams, characterized in that, It includes a slide rail beam (1) and several sliding seats (2) that slide on the slide rail beam (1), a steel beam (3) is placed on the sliding seats (2), and several sets of jacking mechanisms (4) are also provided on the slide rail beam (1). Each of the jacking mechanisms (4) includes a detachable reaction seat (5) mounted on the slide rail beam (1) and a jacking seat (6) slidably mounted on the slide rail beam (1), with a jack (7) provided between the reaction seat (5) and the jacking seat (6). The reaction seat (5) includes a rectangular frame (8), and two fixing plates (9) are fixedly installed on the lower surface of the frame (8). One end of the fixing plate (9) extends to the outside of the frame (8) and has a connecting hole (10). Both the sliding seat (2) and the push seat (6) include a base (11) welded from steel plates, and a sliding plate (12) is fixedly installed on the lower surface of the base (11). A mounting plate (13) is provided in the middle of both the frame (8) and the push base (6). Mounting holes are provided on the mounting plate (13). The two ends of the jack (7) are connected to the mounting holes by pins.

2. The steel beam transverse jacking and sliding device according to claim 1, characterized in that, The slide rail beam (1) is a double-web H-beam, and a slide rail plate (14) is provided on one of its upward flanges. Several positioning holes (15) are opened on the flanges on both sides of the slide rail plate (14). The reaction seat (5) is detachably connected to the slide rail beam (1) by bolts (16) passing through the connecting hole (10) and a corresponding set of positioning holes (15).

3. The steel beam transverse jacking and sliding device according to claim 1, characterized in that, A limiting plate (17) is provided at each end of the lower surface of the frame (8) and the base (11).

4. The steel beam transverse jacking and sliding device according to claim 2, characterized in that, The slide plate (14) is made of stainless steel or polytetrafluoroethylene.

5. The steel beam transverse jacking and sliding device according to claim 2, characterized in that, An oil groove (18) is provided on the side of the sliding plate (12) away from the base (11).

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