Support for assembling and piggybacking double-girder bridge erection machine

Abstract

A support for assembling and piggybacking a double-girder bridge erection machine, the support comprising: guide posts (3), adjustment seats (5) being sleeved on the guide posts (3), and the height of the adjustment seats (5) on the guide posts (3) being adjustable; a support beam (9), the support beam (9) being movably sleeved on the guide posts (3), and brackets (10) horizontally extending from the lower parts of vertical column portions; hydraulic cylinders (13), two ends of each hydraulic cylinder (13) being connected to the support beam (9) and an adjustment seat (5), respectively, and the hydraulic cylinders (13) extending and retracting to adjust the height of the support beam (9); and first lifting lugs (16), second lifting lugs (17) and operation platforms (18), the second lifting lugs (17) being located directly above the first lifting lugs (16), and the operation platforms (18) being lower than the upper surfaces of the brackets (10). The support can adjust the height of the support beam (9) above the ground on the basis of usage requirements, and thus can perform adjustments on the basis of the height of a bridge erection machine, such that the support can be suitable for the piggybacking and assembling of double-girder bridge erection machines of different models.

Description

A double-girder bridge erection machine for assembling and transporting brackets Technical Field

[0001] The present application belongs to the technical field of bridge erection machine transport brackets, and specifically relates to a double-girder bridge erection machine for assembling and transporting brackets. Background Art

[0002] A bridge-erecting machine is a large piece of equipment used in the construction of prefabricated box-girder bridges. After completing one construction section, it needs to be moved to the next construction area. Because bridge-erecting machines are slow, the traditional method is to disassemble the machine for transportation and then reassemble it at the next construction site. However, this disassembly and assembly process takes a long time, increasing the construction period.

[0003] Currently, there is also a transfer method without disassembling the bridge-building machine. The method is to place a bracket (pack frame) on the beam transport vehicle, and then the beam transport vehicle drives under the bridge-building machine. The bridge-building machine lowers the main beam onto the bracket, and then retracts the legs. After that, the beam transport vehicle carries the bridge-building machine to transfer.

[0004] However, most existing bridge-building machine brackets are simple brackets with fixed heights, which are usually specially made for a certain type of bridge-building machine and cannot be used for different types of bridge-building machines. Moreover, when operating, personnel need to climb on other height-raising equipment to connect the simple bracket to the lifting equipment, which is inconvenient.

[0005] Therefore, it is necessary to provide an improved technical solution to the above-mentioned deficiencies in the prior art.

[0006] Summary of the Invention

[0007] The purpose of this application is to overcome the deficiencies of the prior art and provide a double-girder bridge erection machine for assembling and transporting brackets.

[0008] In order to achieve the above objectives, this application provides the following technical solutions:

[0009] A double-girder bridge erection machine assembly and transport bracket (hereinafter referred to as the transport bracket), comprising:

[0010] A guide column, wherein an adjustment seat is sleeved on the guide column, and the height of the adjustment seat on the guide column is adjustable; the guide columns are at least four and spaced apart, and the adjustment seats are at least two and spaced apart;

[0011] A support beam, the support beam being movably sleeved on the guide column; the support beam spanning the upper portion of all the adjustment seats; both ends of the length of the support beam being bent downward to form a vertical column portion, a bracket extending horizontally from the lower portion of the vertical column portion, and the upper surface of the bracket being a plane;

[0012] A hydraulic cylinder, with both ends of the hydraulic cylinder connected to the support beam and the adjustment seat respectively, and the hydraulic cylinder is telescopic to adjust the height of the support beam;

[0013] A first lifting lug is fixed to the middle of the front side and the rear side of the vertical column;

[0014] The second lifting lug is fixed to the upper middle portion of the front side and the rear side of the support beam and has a lifting hole extending vertically therethrough; the second lifting lug is located directly above the first lifting lug;

[0015] An operating platform is fixed to the lower part of the front side and the rear side of the vertical column portion, and is used for a person to stand to operate the first lifting lug and the second lifting lug; the operating platform is lower than the upper surface of the bracket;

[0016] An oblique rod is provided at one end of the operating platform away from the support beam, and the upper end of the oblique rod is fixed to the support beam;

[0017] One side of the operating platform exceeds the vertical column portion and extends toward the bracket, so that the operating platform has a larger area;

[0018] A telescopic component is provided in the vertical column portion, and the telescopic component is telescopic along the length direction of the support beam. A positioning plate is fixed to the outer end of the telescopic component. Beneficial effects:

[0019] By coordinating the guide column, the adjustment seat and the support beam, the height of the support beam from the ground can be adjusted according to the use requirements, and then it can be adjusted according to the height of the bridge erection machine. The setting of the adjustment seat can adjust the position of the bridge erection machine on different reference surfaces, and then cooperate with the hydraulic cylinder to adjust the distance between the adjustment seat and the positioning seat, so as to facilitate the up and down adjustment of the bridge erection machine, which can be suitable for the transportation and assembly of different models of double-girder bridge erection machines.

[0020] The reasonable design of the positions of the first lifting eye, the second lifting eye and the operating platform makes it easy for workers to operate the first lifting eye and the second lifting eye; not only can the second lifting eye be used in conjunction with the lifting rope to facilitate lifting the carrying bracket onto the beam transport vehicle; the second lifting eye can also be used in conjunction with the threaded lifting rod of the beam lifting machine to facilitate the lifting and lowering of the carrying bracket by the beam lifting machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG1 is a schematic structural diagram of an embodiment of the present application.

[0022] FIG2 is a schematic diagram of the hydraulic cylinder installation structure of an embodiment of the present application.

[0023] FIG3 is a schematic diagram of the exploded structure of the guide column according to an embodiment of the present application.

[0024] FIG4 is a schematic diagram of the installation structure of the adjustment seat according to an embodiment of the present application.

[0025] FIG5 is a schematic diagram of the installation structure of the cylinder seat according to an embodiment of the present application.

[0026] FIG6 is a schematic structural diagram of the positioning plate in the extended state according to an embodiment of the present application.

[0027] FIG7 is a schematic diagram of the application of the positioning plate according to an embodiment of the present application.

[0028] In the figure: 1. Base; 2. Support plate; 3. Guide column; 4. Fixing hole; 5. Adjustment seat; 6. Fixing rod; 7. Limit rod; 8. Side seat; 9. Support beam; 10. Bracket; 11. Pad; 12. Through groove; 13. Hydraulic cylinder; 14. Cylinder seat; 15. Cover plate; 16. First lifting eye; 17. Second lifting eye; 18. Operating platform; 19. Diagonal rod; 20. Upper fixing seat; 21. Positioning plate; 22. Horizontal threaded hole; 23. Through seat hole; 100. Main beam. DETAILED DESCRIPTION

[0029] As shown in Figures 1 to 5, a double-girder 100 bridge erection machine assembling and carrying brackets includes:

[0030] A guide column 3, on which an adjustment seat 5 is sleeved, wherein the height of the adjustment seat 5 on the guide column 3 is adjustable; at least four guide columns 3 are arranged at intervals, and at least two adjustment seats 5 are arranged at intervals;

[0031] The support beam 9 is movably sleeved on the guide column 3; the support beam 9 spans the upper part of all the adjustment seats 5; the two ends of the support beam 9 are bent downward to form a vertical column part, and a bracket 10 is horizontally extended from the lower part of the vertical column part. The upper surface of the bracket 10 is flat and is used to support the main beam 100 of the bridge-building machine; the support beam 9 and the bracket 10 are in the shape of a "X" as a whole when viewed from the front or rear;

[0032] The hydraulic cylinder 13 has two ends connected to the support beam 9 and the adjustment seat 5 respectively. The hydraulic cylinder 13 is extended and retracted to adjust the height of the support beam 9. When the hydraulic cylinder 13 is working, it only locks the position of the adjustment seat 5, and the support beam 9 can be driven by the hydraulic cylinder 13 to move up and down along the guide column 3.

[0033] The first lifting lugs 16 are fixed to the middle of the front and rear sides of the vertical column; the first lifting lugs 16 cooperate with general lifting equipment, such as a crane, etc. When in use, a person standing on the operating platform 18 or the bracket 10 connects the first lifting lugs 16 to the lifting rope to facilitate lifting the carrying bracket onto the beam transport vehicle;

[0034] The second lifting lug 17 is fixed to the upper middle part of the front and rear sides of the support beam 9 and has a lifting hole extending therethrough for use with the threaded lifting rod of the beam hoist. The second lifting lug 17 is located directly above the first lifting lug 16. When in use, a person needs to stand on the operating platform 18 to install and remove the lifting rod nut at the end of the threaded lifting rod. In one usage scenario, after the carrying bracket lifts the bridge erection machine, the carrying bracket can be lifted by the beam hoist, and then the bridge erection machine and the carrying bracket can be lifted from the ground to the bridge deck.

[0035] An operating platform 18 is fixed to the lower portion of the front and rear sides of the vertical column portion for a person to stand on to operate the first lifting lug 16 and the second lifting lug 17 ; the operating platform 18 is lower than the upper surface of the bracket 10 .

[0036] This application is specifically used for a double-girder 100 bridge-building machine, which is commonly used in the construction of prefabricated beam bridges, such as the SH900 bridge-building machine; when in use, the upper convex part of the support beam 9 and the bracket 10 is located between the two main beams 100 of the bridge-building machine, and the positions of the two main beams 100 are therefore restricted, which can prevent the double-girder 100 bridge-building machine from slipping excessively on the carrying bracket.

[0037] As shown in Figures 1, 2 and 6, the operating platform 18 is a grid structure, including a rectangular outer frame and a number of ribs welded to the inner wall of the rectangular outer frame; in order to increase the firmness and service life of the operating platform 18, in addition to being directly welded to the lower part of the vertical column, the operating platform 18 is provided with a diagonal rod 19 at one end away from the support beam 9, and the upper end of the diagonal rod 19 is directly welded and fixed or fixed to the support beam 9 through an upper fixing seat 20 welded to the vertical column; the diagonal rod 19 is generally provided at the corners of the operating platform 18, and at least one diagonal rod 19 is provided; one side of the operating platform 18 extends beyond the vertical column and extends toward the bracket 10, so that the operating platform 18 has a larger usable area.

[0038] As shown in Figures 1 and 6, the support beam 9 is provided with a through slot 12 which runs through the upper and lower parts. The support beam 9 is detachably provided with a cover plate 15 which is pressed onto the opening at the upper end of the through slot 12. One end of the hydraulic cylinder 13 is fixed to the lower surface of the cover plate 15. The hydraulic cylinder 13 includes a cylinder body and a piston rod, and the end of the cylinder body away from the piston rod is fixed to the lower surface of the cover plate 15. The design of the through slot 12 and the cover plate 15 facilitates the installation of the hydraulic cylinder 13. The end of the piston rod away from the cylinder body is fixedly connected to a cylinder seat 14, and the bottom of the cylinder seat 14 is connected to the middle part of the top surface of the adjustment seat 5 by bolts.

[0039] As shown in Figures 1 to 6, a plurality of fixing holes 4 are provided transversely through the guide column 3, and a fixing rod 6 is passed through the fixing hole 4. The outer diameter of one end of the fixing rod 6 is larger than the fixing hole 4, and the other end of the fixing rod 6 is detachably installed with a limit rod 7 to prevent the fixing rod 6 from escaping from the fixing hole 4; the support beam 9 is slidably matched with the guide column 3 through the side seats 8 provided on the front and rear sides thereof; locking holes corresponding to the fixing rods 6 are provided on the side seat 8 and the adjustment seat 5, and the position of the side seat 8 is locked by simultaneously passing one fixing rod 6 through the locking hole of the side seat 8, and the position of the adjustment seat 5 is locked by simultaneously passing another fixing rod 6 through the locking hole of the adjustment seat 5;

[0040] When lifting the bridge erection machine, first adjust and lock the position of the adjustment seat 5, and at the same time, retract the hydraulic cylinder 13 to the lowest position, move the beam transport vehicle to move the support beam 9 to the main beam 100 of the bridge erection machine, and then extend the hydraulic cylinder 13 to lift the support beam 9, and the support beam 9 lifts the bridge erection machine. Then, the personnel pass the fixing rod 6 through the side seat 8 to lock the position of the support beam 9, and then the beam transport vehicle carries the bridge erection machine to another site. Generally, one bridge erection machine requires at least two beam transport vehicles and carrying brackets.

[0041] When lowering the bridge-building machine, unlock the side seat 8, retract the hydraulic cylinder 13, and lower the support beam 9 and the bridge-building machine carried thereon.

[0042] As shown in Figures 1 to 4, the carrying bracket also includes a base 1, on which a support plate 2 corresponding to the position of the guide column 3 is provided, and the support plate 2 is connected to the bottom end flange of the guide column 3; the base 1 connects all the guide columns 3; when in use, the base 1 is placed on the turntable of the beam transport machine; as shown in Figures 1, 3 and 4, a plurality of through-holes 23 are provided on the circumference of the base 1 and pass through the through-holes 23 along the width direction thereof. After transferring or placing the base 1 on the turntable of the beam transport machine, the base 1 can be temporarily fixed by passing a binding rope through the through-holes 23 and fixing the two ends of the binding rope.

[0043] As shown in Figures 1, 2, 6 and 7, a pad 11 is fixedly connected to the upper surface of the bracket 10. The upper surface of the pad 11 is rough. The rough surface of the pad 11 increases the friction with the main beam 100 of the bridge-building machine, thereby preventing the bridge-building machine from slipping and deviating on the bracket 10 during transportation. For example, anti-slip grooves can be provided on the upper surface of the pad 11, or convex points, convex strips, corrugations, etc. can be designed.

[0044] The carrying bracket can be suitable for double-girder 100 bridge-building machines with different moving ranges of the main girder 100. In addition, since the distance between the two main girder 100 of different models of double-girder 100 bridge-building machines may be different, as shown in Figures 1, 2, 6 and 7, the length of the bracket 10 can be appropriately increased, and a telescopic component is provided in the vertical column part, which telescopic component telescopes along the length direction of the support beam 9, and a positioning plate 21 is fixed to the outer end of the telescopic component; after the bridge-building machine is placed on the bracket 10, there is still a gap between the main girder 100 of the bridge-building machine and the vertical column part bracket. The existence of this gap makes it possible for the double-girder 100 bridge-building machine to move after being loaded on the carrying bracket. Through the setting of the positioning plate 21, after the bridge-building machine is placed on the bracket, the positioning plate 21 extends out and presses against the main girder 100 of the bridge-building machine, and fixes the position of the double-girder 100 bridge-building machine from the inner side of the two main girders 100, thereby eliminating the possibility of the double-girder 100 bridge-building machine slipping on the bracket 10 during transportation.

[0045] The telescopic component can take various forms; as shown in Figure 6, the telescopic component includes a transverse threaded hole 22 arranged in the vertical column part and an outer screw barrel that engages and matches the transverse threaded hole 22. The positioning plate 21 is an annular plate and is fixed to the outer end of the outer screw barrel. The transverse threaded hole 22 can only have a section of thread near the opening; when in use, the worker can stand directly on the operating platform 18 and use the annular positioning plate 21 as a handwheel to rotate and adjust the extension length of the outer screw barrel; in another embodiment, a mounting groove can be opened on the end face of the vertical column part, and a jack or electric push rod can be installed in the mounting groove, and the positioning plate 21 is fixed to the protruding end of the jack.

[0046] The process of this application for transporting the bridge erection machine is as follows:

[0047] A bridge erection machine requires at least two beam transport vehicles and carrying brackets for carrying; first, the crane is connected to the first lifting lug 16 through a lifting rope, the carrying bracket is lifted and the base 1 is fixed on the turntable of the beam transport vehicle, and the beam transport vehicle carries the carrying bracket to the bottom of the main beam 100 of the bridge erection machine, and then the hydraulic cylinder 13 is started to lift the support beam 9. After the bracket 10 lifts the main beam 100 of the bridge erection machine, the fixing rod 6 is passed through the side seat 8 to lock the position of the support beam 9; then the two beam transport vehicles carry the bridge erection machine After the transfer is in place, the legs of the bridge-building machine are extended, the fixing rod 6 that locks the side seat 8 is removed, and the hydraulic cylinder 13 is telescopic to lower the main beam 100 of the bridge-building machine until the legs of the bridge-building machine are on the ground; after the transfer is in place, if the beam transport vehicle is on the ground and the bridge-building machine is needed to go up the bridge, the beam transport vehicle carries the bridge-building machine to the position where the beam lifting machine lifts, and the threaded boom of the beam lifting machine passes through the second lifting ear 17 and is fixed by the boom nut, and then the beam lifting machine is used to lift the carrying bracket and the bridge-building machine onto the bridge deck.

[0048] The process of applying for auxiliary assembly of bridge erection machine is as follows:

[0049] The assembly of the bridge-building machine requires the simultaneous use of multiple carrying brackets. The support beam 9 is adjusted to a lower position on the guide column 3. Two carrying brackets support a section of the bridge-building machine main beam to be assembled. After multiple bridge-building machine main beam sections are connected and spliced ​​into a complete main beam 100, the support beam 9 lifts the main beam 100, raises the main beam 100, and then the support legs can be assembled on the main beam 100.

Claims

1. A double-girder bridge erecting machine for assembling and carrying brackets, characterized in that: The double-girder bridge erecting machine assembly and carrying bracket includes: A guide column, wherein an adjustment seat is sleeved on the guide column, and the height of the adjustment seat on the guide column is adjustable; the guide columns are at least four and arranged at intervals, and the adjustment seats are at least two and arranged at intervals; A support beam, the support beam is movably sleeved on the guide column; the support beam spans across all the adjustment seats; both ends of the length of the support beam are bent downward to form a vertical column part, a bracket is horizontally extended from the lower part of the vertical column part, and the upper surface of the bracket is a plane; A hydraulic cylinder, the two ends of which are respectively connected to the support beam and the adjustment seat, and the hydraulic cylinder is extended and retracted to adjust the height of the support beam; A first lifting lug is fixed to the middle of the front side and the rear side of the vertical column; A second lifting lug is fixed to the middle and upper parts of the front side and the rear side of the support beam and has a lifting hole that passes through from top to bottom; the second lifting lug is located directly above the first lifting lug; An operating platform is fixed to the lower part of the front side and the rear side of the vertical column part, and is used for a person to stand to operate the first lifting lug and the second lifting lug; the operating platform is lower than the upper surface of the bracket; An oblique tie rod is provided at one end of the operating platform away from the support beam, and the upper end of the oblique tie rod is fixed on the support beam; One side of the operating platform exceeds the vertical column portion and extends toward the bracket; A telescopic component is arranged in the vertical column part, and the telescopic component is telescopic along the length direction of the support beam. A positioning plate is fixed to the outer end of the telescopic component.

2. The double-girder bridge erecting machine assembly and carrying bracket according to claim 1, characterized in that: The support beam is provided with a through slot which passes through from top to bottom, and the support beam is provided with a cover plate which is detachably pressed on the opening at the upper end of the through slot, and one end of the hydraulic cylinder is fixed on the lower surface of the cover plate.

3. The double-girder bridge erecting machine assembly and carrying bracket according to claim 1, characterized in that: The guide column is provided with a plurality of fixing holes extending transversely therethrough, and a fixing rod is passed through the fixing hole. The outer diameter of one end of the fixing rod is larger than the fixing hole, and a limiting rod is detachably installed at the other end of the fixing rod to prevent the fixing rod from falling out of the fixing hole. The support beam is slidably matched with the guide column through side seats arranged on its front and rear sides; locking holes corresponding to the fixing rods are arranged on the side seats and the adjustment seats, and the side seat position is locked by simultaneously passing a fixing rod through the locking hole of the side seat, and the adjustment seat position is locked by simultaneously passing another fixing rod through the locking hole of the adjustment seat.

4. The double-girder bridge erecting machine assembly and carrying bracket according to claim 1, characterized in that: The double-main-beam bridge erection machine assembly and carrying bracket also includes a base, on which a support plate corresponding to the position of the guide column is arranged, and the support plate is connected to the bottom end flange of the guide column.

5. The double-girder bridge erecting machine assembly and carrying bracket according to claim 4, characterized in that: A plurality of through-seat holes penetrating along the width direction of the base are arranged on the peripheral surface of the base.

6. The double-girder bridge erecting machine assembly and carrying bracket according to claim 1, characterized in that: A pad is fixedly connected to the upper surface of the bracket, and the upper surface of the pad is rough.

7. The double-girder bridge erecting machine assembly and carrying bracket according to claim 1, characterized in that: The telescopic component comprises a transverse threaded hole arranged in the vertical column part and an outer screw barrel meshing and matching with the transverse threaded hole, and the positioning plate is an annular plate and is fixed on the outer end of the outer screw barrel.

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