Steel box girder positioning and splicing device

Abstract

The invention belongs to the field of steel box girder installation, and discloses a steel box girder positioning and splicing device which comprises a bottom plate, a first lifting cylinder is fixed to the bottom plate, a top plate is fixed to the first lifting cylinder, and a rectangular window is formed in the top plate; the driving wheels are evenly distributed in the rectangular window, the two ends of each driving wheel are rotationally connected with supporting plates, the lower ends of the supporting plates are fixedly provided with connecting plates, the lower ends of the connecting plates are fixedly provided with supporting shafts, the supporting shafts are rotationally connected with first gears, and the first gears are meshed with second gears and third gears; a first rotating shaft is fixed to the second gear, a first bevel gear is fixed to the upper end of the first rotating shaft, the first bevel gear is meshed with a second bevel gear, and the second bevel gear is fixed to the driving wheel; a second rotating shaft is fixed to the lower end of the third gear, a third bevel gear is fixed to the lower end of the second rotating shaft and meshed with a fourth bevel gear, and the fourth bevel gear is fixed to a transmission shaft; and the posture of the steel box girder can be adjusted, so that the two steel box girders are adjacently spliced end to end.

Description

Technical Field

[0001] The invention belongs to the field of steel box girder installation, and in particular relates to a steel box girder positioning and splicing device. Background Art

[0002] Steel box girder, also known as steel plate box girder, is a commonly used structure for highway bridges. It is hollow inside and looks like a box, so it is called a steel box girder. The installation of steel box girders generally uses a crane to complete the splicing.

[0003] In the current existing technology, when installing steel box girders, multiple sections of steel box girders need to be transported from the production area to the construction site, and then the steel box girders are lifted into the air by a crane. After that, the staff adjusts them to align the steel box girders at both ends. Before lifting, temporary supports need to be installed under the installation area of ​​the steel box girder. The aligned steel box girder is placed on the temporary supports. After that, the staff welds at the joints of the steel box girder to complete the assembly of the steel box girder.

[0004] During splicing, the position of the steel box girder needs to be adjusted manually, but the steel box girder is heavy and difficult to adjust. It is also a high-altitude operation and is relatively dangerous. Therefore, a steel box girder positioning and splicing device is proposed to address the above problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a steel box girder positioning and splicing device to solve the problems in the background technology.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A steel box girder positioning and splicing device, comprising:

[0008] A bottom plate, a plurality of first lifting cylinders are fixedly connected to the circumference of the bottom plate, a top plate is fixedly connected to the telescopic ends of the first lifting cylinders, and a rectangular window is opened in the middle of the top plate;

[0009] Driving wheels, a plurality of driving wheels are evenly distributed in the rectangular window, two ends of the driving wheels are fixedly connected with connecting shafts, a supporting plate is rotatably connected to the connecting shaft, a connecting plate is fixedly connected between the lower ends of the two supporting plates, a supporting shaft is fixedly connected to the lower end of the connecting plate, a first gear is rotatably connected to the supporting shaft, and a second gear and a third gear are meshed on both sides of the first gear;

[0010] The upper end of the second gear is fixedly connected to the first rotating shaft, the upper end of the first rotating shaft is fixedly connected to the first bevel gear, the side of the first bevel gear is meshed with the second bevel gear, and the second bevel gear is fixedly connected to the connecting shaft;

[0011] The lower end of the third gear is fixedly connected to the second rotating shaft, the lower end of the second rotating shaft is fixedly connected to the third bevel gear, the side of the third bevel gear is meshed with a fourth bevel gear, and a plurality of fourth bevel gears are fixedly connected to the same transmission shaft;

[0012] The fourth gear is fixedly connected to the supporting shaft, and the side surfaces of a plurality of fourth gears are meshed with the same rack.

[0013] Furthermore, a first connecting sleeve is rotatably mounted on the first rotating shaft, and the first connecting sleeve is fixedly connected to the supporting plate.

[0014] Furthermore, a second connecting sleeve rotatably connected is sleeved on the second rotating shaft, and a plurality of second connecting sleeves are fixedly connected to a fixed plate. A plurality of supporting plates are fixedly connected to the lower end of the fixed plate, and the lower end of the supporting plate is fixedly connected to the bottom plate.

[0015] Furthermore, the transmission shaft passes through the support plate so that the transmission shaft is rotationally connected to the support plate.

[0016] Furthermore, a motor is disposed at one end of the transmission shaft, an output end of the motor is fixedly connected to the transmission shaft, and the motor is fixedly connected to the bottom plate.

[0017] Furthermore, a slide groove is provided at the lower end of the rack, a slider is slidably connected in the slide groove, a plurality of support rods are fixedly connected to the lower end of the slider, and the lower ends of the support rods are fixedly connected to the bottom plate.

[0018] Furthermore, an electric push rod is provided at one end of the rack, the telescopic end of the electric push rod is fixedly connected to the rack, the peripheral side of the electric push rod is fixedly connected to a fixing frame, and the lower end of the fixing frame is fixedly connected to the bottom plate.

[0019] Furthermore, the lower end of the support shaft is rotatably connected to a support sleeve, and the lower end of the support sleeve is fixedly connected to the base plate.

[0020] Furthermore, a base is provided below the bottom plate, and second lifting cylinders are fixedly connected to both sides of the base, and an output end of the second lifting cylinder is fixedly connected to the bottom plate.

[0021] Furthermore, a rubber ring is sleeved on the outer side of the driving wheel.

[0022] The nouns, conjunctions or adjectives involved in the above technical solution are explained as follows:

[0023] Fixed connection refers to a connection in which parts or components are fixed without any relative movement. There are two types of connection: detachable and non-detachable.

[0024] (1) A removable connection is a connection that uses screws, splines, wedge pins, etc. to hold parts together. This type of connection can be disassembled for maintenance without damaging the parts. However, the specifications of the connectors used must be correct (such as the length of the bolts, keys, and wedge pins) and they must be properly tightened.

[0025] (2) Non-detachable connections mainly refer to welding, riveting and tenoning. Since they need to be disassembled by forging, sawing or oxygen cutting for maintenance or replacement, spare parts generally cannot be reused. At the same time, when making connections, attention should be paid to process quality, technical inspection and remedial measures (such as calibration, polishing, etc.).

[0026] A threaded connection refers to a detachable connection in which the connected parts are connected together using threaded parts (or the threaded parts of the connected parts).

[0027] A sliding connection is when two objects are in contact but not fixed and can slide relative to each other.

[0028] A rotational connection is a connection between parts that allows the parts to rotate relative to each other.

[0029] Beneficial effects of the present invention:

[0030] The two ends of the steel box beam fall onto the driving wheels, and the two adjacent steel box beams are arranged adjacent to each other. First, the driving source drives the driving wheel to rotate, and the driving wheels at both ends of the steel box beam rotate in the opposite direction to straighten the distorted steel box beam so that the two steel box beams are in a parallel state as much as possible. Then, the driving source drives the driving wheel to rotate, and the driving wheels at both ends of the steel box beam rotate in the same direction to move the steel box beam laterally so that the two steel box beams are aligned head to tail. Through the above two adjustment methods, the posture of the steel box beam is repeatedly adjusted so that the two steel box beams are adjacent to each other and on the same straight line as much as possible. Finally, the first lifting cylinder is driven to lift the top plate, and the top plate lifts the steel box beam. At this time, the driving wheel is located below the top plate, and the driving rack moves to drive a number of fourth gears to rotate synchronously. The fourth gear drives the support shaft to rotate, thereby causing the driving wheel to turn in degrees. Finally, the driving wheel is driven so that the two adjacent steel box beams are close to each other and contact each other, thereby adjusting the posture of the steel box beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0033] Figure 2 is a schematic diagram of the bottom plate structure of an embodiment of the present invention;

[0034] Figure 3 is a schematic diagram of the transmission shaft structure of an embodiment of the present invention;

[0035] Figure 4 is a schematic diagram of a first gear connection structure according to an embodiment of the present invention;

[0036] Figure 5 is a schematic diagram of the support shaft structure of an embodiment of the present invention;

[0037] Figure 6 Schematic diagram of the rack structure of an embodiment of the present invention. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0040] like Figure 1-6 As shown, a steel box girder positioning and splicing device comprises:

[0041] A bottom plate 1, a plurality of first lifting cylinders 2 are fixedly connected to the peripheral side of the bottom plate 1, a top plate 3 is fixedly connected to the telescopic end of the first lifting cylinder 2, and a rectangular window 4 is opened in the middle of the top plate 3;

[0042] A driving wheel 5, a plurality of driving wheels 5 are evenly distributed in the rectangular window 4, two ends of the driving wheel 5 are fixedly connected with a connecting shaft 6, a supporting plate 7 is rotatably connected to the connecting shaft 6, a connecting plate 8 is fixedly connected between the lower ends of the two supporting plates 7, a supporting shaft 9 is fixedly connected to the lower end of the connecting plate 8, a first gear 10 is rotatably connected to the supporting shaft 9, and a second gear 11 and a third gear 12 are meshed on both sides of the first gear 10;

[0043] The upper end of the second gear 11 is fixedly connected to the first rotating shaft 13, the upper end of the first rotating shaft 13 is fixedly connected to the first bevel gear 14, the side of the first bevel gear 14 is meshed with the second bevel gear 15, and the second bevel gear 15 is fixedly connected to the connecting shaft 6;

[0044] The lower end of the third gear 12 is fixedly connected to the second rotating shaft 16, the lower end of the second rotating shaft 16 is fixedly connected to the third bevel gear 17, the side of the third bevel gear 17 is meshed with a fourth bevel gear 18, and a plurality of fourth bevel gears 18 are fixedly connected to the same transmission shaft 19;

[0045] The fourth gear 20 is fixedly connected to the support shaft 9 , and the side surfaces of a plurality of fourth gears 20 are meshed with the same rack 21 .

[0046] When in use, first place several of the devices in a line, and use a crane to lift the steel box beam to the top of the driving wheel 5. Before placement, first make a rough adjustment to the steel box beam. After placement, the two ends of the steel box beam fall on the driving wheel 5, and the two adjacent steel box beams are placed adjacent to each other head to tail. First, the driving source drives the driving wheel 5 to rotate, and the driving wheels 5 at both ends of the steel box beam rotate in the opposite direction to straighten the distorted steel box beam so that the two steel box beams are as parallel as possible. Then, the driving source drives the driving wheel 5 to rotate, and the driving wheels 5 at both ends of the steel box beam rotate in the same direction to move the steel box beam laterally so that the two steel box beams are aligned head to tail. Through the above two adjustment methods, the posture of the steel box beam is repeatedly adjusted to make the two steel box beams adjacent head to tail on the same straight line as much as possible. Finally, the first lifting cylinder 2 is driven to lift the top plate, and the top plate lifts the steel box girder. At this time, the driving wheel 5 is located under the top plate 3, and the driving rack 21 moves to drive several fourth gears 20 to rotate synchronously. The fourth gear 20 drives the support shaft 9 to rotate, thereby making the driving wheel 5 turn 90 degrees. Finally, the driving wheel 5 is driven to make the two adjacent steel boxes approach and contact each other.

[0047] The driving method of the above-mentioned driving wheel 5 is that the driving source drives the transmission shaft 19 to rotate, the transmission shaft 19 drives the fourth bevel gear 18 to rotate, the fourth bevel gear 18 drives the third bevel gear 17 to rotate, the third bevel gear 17 drives the second rotating shaft 16 to rotate, the second rotating shaft 16 drives the third gear 12 to rotate, the third gear 12 drives the first gear 10 to rotate, the first gear 10 drives the second gear 11 to rotate, the second gear 11 drives the first rotating shaft 13 to rotate, the first rotating shaft 13 drives the first bevel gear 14 to rotate, the first bevel gear 14 drives the second bevel gear 15 to rotate, the second bevel gear 15 drives the connecting shaft 6 to rotate, and the connecting shaft 6 drives the driving wheel 5 to rotate, thereby realizing the posture adjustment of the steel box girder.

[0048] In the above scheme, when the support shaft 9 rotates, the connecting plate 8 is driven to rotate, and the connecting plate 8 drives the support plate 7 to rotate around the support shaft 9, thereby driving the driving wheel 5 to turn. During the turning process of the driving wheel 5, the second gear 11 moves around the circumference of the first gear 10. During the movement, the second gear 11 will rotate. The design of this structure aims to ensure that no matter how the driving wheel 5 turns, the second gear 11 will engage with the first gear 10, so that it is convenient to drive the driving wheel 5 to rotate at the back to achieve the posture adjustment of the steel box girder.

[0049] In one embodiment of the present invention, a first connecting sleeve 22 for rotational connection is sleeved on the first rotating shaft 13, and the first connecting sleeve 22 is fixedly connected to the support plate 7. The first connecting sleeve 22 is provided for connecting and supporting the rotation of the first rotating shaft 13. At the same time, the first connecting sleeve 22 is fixedly connected to the support plate 7. When the driving wheel 5 turns, the first rotating shaft 13 is supported to rotate accordingly, ensuring that the first gear 10 is meshed with the second gear 11 and is not separated, ensuring that the first bevel gear 14 is meshed with the second bevel gear 15 and is not separated, ensuring that the entire transmission is continuous, and realizing the posture adjustment of the steel box girder.

[0050] In one embodiment of the present invention, a second connecting sleeve 23 is sleeved on the second rotating shaft 16 for rotational connection, and a plurality of second connecting sleeves 23 are fixedly connected to a fixing plate 24. A plurality of supporting plates 25 are fixedly connected to the lower end of the fixing plate 24, and the lower end of the supporting plate 25 is fixedly connected to the bottom plate 1. The design of this structure is used to connect and support the rotation of the second rotating shaft 16, so that the first gear 10 and the third gear 12 are meshed and inseparable, and the third bevel gear 17 and the fourth bevel gear 18 are meshed and inseparable, so as to ensure the continuity of the entire transmission and realize the posture adjustment of the steel box girder.

[0051] In one embodiment of the present invention, the transmission shaft 19 passes through the support plate 25 so that the transmission shaft 19 is rotatably connected to the support plate 25. Such a design can connect the rotation of the support transmission shaft 19, so that the transmission shaft 19 rotates stably, ensures the continuity of the entire transmission, and realizes the posture adjustment of the steel box girder.

[0052] In one embodiment of the present invention, a motor 26 is provided at one end of the transmission shaft 19, the output end of the motor 26 is fixedly connected to the transmission shaft 19, and the motor 26 is fixedly connected to the base plate 1. The motor 26 serves as a driving source to drive the transmission shaft 19 to rotate, and through a series of transmission structures, the driving wheel 5 is finally rotated to achieve the posture adjustment of the steel box girder.

[0053] In one embodiment of the present invention, a slide groove 27 is provided at the lower end of the rack 21, a slider 28 is slidably connected in the slide groove 27, a plurality of support rods 29 are fixedly connected to the lower end of the slider 28, and the lower end of the support rod 29 is fixedly connected to the bottom plate 1. This structure is a connection method between the rack 21 and the slider 28. The slider 28 plays a supporting role on the one hand, and on the other hand enables the rack 21 to slide along the slider 28, reducing the resistance when the rack 21 moves.

[0054] In one embodiment of the present invention, an electric push rod 30 is provided at one end of the rack 21, the telescopic end of the electric push rod 30 is fixedly connected to the rack 21, the peripheral side of the electric push rod 30 is fixedly connected to the fixing frame 31, and the lower end of the fixing frame 31 is fixedly connected to the bottom plate 1. The extension of the telescopic end of the electric push rod 30 drives the rack 21 to move along its length direction, and the movement of the rack 21 drives the support shaft 9 to rotate, thereby causing the driving wheel 5 to turn 90 degrees, and finally driving the driving wheel 5, so that the two adjacent steel boxes are close to each other.

[0055] In one embodiment of the present invention, the lower end of the support shaft 9 is rotatably connected to a support sleeve 32, and the lower end of the support sleeve 32 is fixedly connected to the bottom plate 1. The support sleeve 32 is provided to support and stabilize the support shaft 9 in a vertical state, and at the same time, it can also enable the support shaft 9 to rotate, thereby realizing the rotation of the driving wheel 5.

[0056] In one embodiment of the present invention, a base 33 is provided below the bottom plate 1, and second lifting cylinders 34 are fixedly connected to both sides of the base 33, and the output end of the second lifting cylinder 34 is fixedly connected to the bottom plate 1. The second lifting cylinder 34 is provided to adjust the height of the entire device so that the steel box beams are on the same horizontal plane, which is convenient for subsequent splicing.

[0057] In one embodiment of the present invention, a rubber ring is sleeved on the outer side of the driving wheel 5 to increase the friction between the driving wheel 5 and the steel box girder, thereby better adjusting the posture of the steel box girder.

[0058] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0059] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A steel box girder positioning and splicing device, characterized in that: include: A bottom plate (1), a plurality of first lifting cylinders (2) are fixedly connected to the peripheral side of the bottom plate (1), a top plate (3) is fixedly connected to the telescopic end of the first lifting cylinder (2), and a rectangular window (4) is provided in the middle of the top plate (3); A driving wheel (5), wherein a plurality of driving wheels (5) are evenly distributed in the rectangular window (4), wherein two ends of the driving wheel (5) are fixedly connected with a connecting shaft (6), a supporting plate (7) is rotatably connected to the connecting shaft (6), a connecting plate (8) is fixedly connected between the lower ends of the two supporting plates (7), a supporting shaft (9) is fixedly connected to the lower end of the connecting plate (8), a first gear (10) is rotatably connected to the supporting shaft (9), and a second gear (11) and a third gear (12) are meshed on both sides of the first gear (10); The upper end of the second gear (1) is fixedly connected to a first rotating shaft (13), the upper end of the first rotating shaft (13) is fixedly connected to a first bevel gear (14), a second bevel gear (15) is meshed on the side of the first bevel gear (14), and the second bevel gear (15) is fixedly connected to the connecting shaft (6); The lower end of the third gear (12) is fixedly connected to a second rotating shaft (16), the lower end of the second rotating shaft (16) is fixedly connected to a third bevel gear (17), the side of the third bevel gear (17) is meshed with a fourth bevel gear (18), and a plurality of fourth bevel gears (18) are fixedly connected to the same transmission shaft (19); A fourth gear (20), wherein the fourth gear (20) is fixedly connected to the support shaft (9), and side surfaces of a plurality of fourth gears (20) are meshed with a same rack (21).

2. A steel box girder positioning and splicing device according to claim 1, characterized in that: A first connecting sleeve (22) is rotatably mounted on the first rotating shaft (13), and the first connecting sleeve (22) is fixedly connected to the support plate (7).

3. A steel box girder positioning and splicing device according to claim 2, characterized in that: A second connecting sleeve (23) is rotatably mounted on the second rotating shaft (16); a plurality of second connecting sleeves (23) are fixedly connected to a fixing plate (24); a plurality of supporting plates (25) are fixedly connected to the lower end of the fixing plate (24); and a lower end of the supporting plate (25) is fixedly connected to the bottom plate (1).

4. A steel box girder positioning and splicing device according to claim 3, characterized in that: The transmission shaft (19) passes through the support plate (25) so that the transmission shaft (19) is rotationally connected to the support plate (25).

5. A steel box girder positioning and splicing device according to claim 4, characterized in that: A motor (26) is provided at one end of the transmission shaft (19), an output end of the motor (26) is fixedly connected to the transmission shaft (19), and the motor (26) is fixedly connected to the bottom plate (1).

6. A steel box girder positioning and splicing device according to claim 5, characterized in that: A sliding groove (27) is provided at the lower end of the rack (21), a sliding block (28) is slidably connected in the sliding groove (27), a plurality of supporting rods (29) are fixedly connected to the lower end of the sliding block (28), and the lower end of the supporting rods (29) is fixedly connected to the bottom plate (1).

7. A steel box girder positioning and splicing device according to claim 6, characterized in that: An electric push rod (30) is provided at one end of the rack (21), the telescopic end of the electric push rod (30) is fixedly connected to the rack (21), the peripheral side of the electric push rod (30) is fixedly connected to a fixing frame (31), and the lower end of the fixing frame (31) is fixedly connected to the bottom plate (1).

8. The steel box girder positioning and splicing device according to claim 1, characterized in that: The lower end of the support shaft (9) is rotatably connected to a support sleeve (32), and the lower end of the support sleeve (32) is fixedly connected to the bottom plate (1).

9. The steel box girder positioning and splicing device according to claim 1, characterized in that: A base (33) is provided below the bottom plate (1), and second lifting cylinders (34) are fixedly connected to both sides of the base (33), and an output end of the second lifting cylinder (34) is fixedly connected to the bottom plate (1).

10. The steel box girder positioning and splicing device according to claim 1, characterized in that: The outer side of the driving wheel (5) is sleeved with a rubber ring.

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