Integral transfer device for main truss of bridge girder erection machine

Abstract

The utility model relates to the technical field of main truss transportation, and discloses a bridge girder erection machine main truss integral transfer device which comprises a base, a support and a bottom frame. The supports are fixedly arranged on the front side and the rear side of the base, and the bottom frames are fixedly arranged on the two sides of the bottom of the base. The fixing mechanism is fixedly arranged below the bracket and extends to the upper part of the bracket; the fixing mechanism comprises a first motor fixedly arranged below the support, and a bolt is fixedly installed above a transmission shaft of the first motor. The first motor is started to drive the bolt to rotate, the first fixing plate and the second fixing plate can be driven to get close to each other, and therefore the two sides of the bridge main truss are clamped and fixed, and compared with a traditional device, the situation that when the bridge main truss is transported, inertia is large due to the large gravity of the bridge main truss, and the transportation efficiency is high can be avoided. By means of the design, the stability of the bridge main truss during transportation is improved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of main truss transportation, and more specifically, the utility model relates to an integral transfer device for the main truss of a bridge erection machine. Background Technique

[0002] The main truss of a bridge refers to a bridge with a truss as the main load-bearing member of the superstructure. It usually consists of a main bridge frame, upper and lower horizontal longitudinal bracing systems, portal frames, intermediate cross bracing frames, and a deck system. In a truss, the chord members are the members that form the periphery of the truss, including upper chord members and lower chord members. The members connecting the upper and lower chord members are called web members, which are further divided into diagonal members and vertical members according to the different directions of the web members. The plane where the chord members and web members are located is called the main truss plane. The bridge height of a long-span bridge frame changes along the span direction, forming a curved chord truss; for medium and small spans, a constant truss height is adopted, that is, the so-called flat chord truss or straight chord truss.

[0003] When a general device transports the main truss of a bridge, the main truss of the bridge is placed above a transport vehicle. However, due to the long length of the bridge, a beam transport gun carriage will follow behind. The end of the main truss of the bridge is placed above the beam transport gun carriage. However, due to the different widths of the main trusses of the bridge, the distance between the two H-shaped brackets above the transport vehicle is much larger than the width of the main truss of the bridge. When transporting the main truss of the bridge, a bundling method with ropes is generally used to fix it, so as to achieve the fixing effect. However, this will consume a lot of time and energy, so it needs to be reformed and optimized. Content of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, the utility model provides an integral transfer device for the main truss of a bridge erection machine, which has the advantages of fixation and shock absorption.

[0005] To achieve the above object, the utility model provides the following technical solution: an integral transfer device for the main truss of a bridge erection machine, including a base, brackets, and a chassis; the brackets are fixedly arranged on both the front and rear sides of the base, and the chassis is fixedly arranged on both sides of the bottom of the base;

[0006] A fixing mechanism is fixedly arranged below the brackets and extends above the brackets;

[0007] The fixing mechanism includes a first motor fixedly arranged below the brackets. A bolt is fixedly installed above the transmission shaft of the first motor. The other end of the bolt is fixedly installed with a connecting frame. The other end of the connecting frame is rotatably connected with a fixing frame, and the fixing frame is fixedly connected with the brackets;

[0008] Above the bolt, a first threaded sleeve and a second threaded sleeve are movably sleeved. Above the first threaded sleeve, it completely penetrates through the upper part of the bracket and is fixedly connected to a first fixing plate. The first fixing plate is movably connected to the bracket. The second threaded sleeve completely penetrates through the upper part of the bracket and is fixedly connected to a second fixing plate. The second fixing plate is movably connected to the bracket.

[0009] As a preferred technical solution of the present utility model, it further includes a second groove opened inside the chassis. A first groove is opened inside the chassis, and the first groove is located below the second groove.

[0010] A moving mechanism is movably arranged inside the first groove.

[0011] A shock-absorbing mechanism is movably arranged inside the second groove and is movably sleeved with the moving mechanism.

[0012] The shock-absorbing mechanism includes a bottom plate movably arranged inside the second groove. One end of a spring is fixedly connected above the bottom plate, and the other end of the spring is fixedly connected to the top surface inside the second groove. A damping cylinder is fixedly installed above the bottom plate, and the other end of the damping cylinder is fixedly connected to the top surface inside the second groove. A fixing ring is fixedly connected below the bottom plate, and the fixing ring is movably sleeved with the moving mechanism.

[0013] As a preferred technical solution of the present utility model, the moving mechanism includes a connecting bar movably arranged inside the first groove. Tires are fixedly installed at both ends of the connecting bar, and the connecting bar is movably sleeved with the fixing ring of the shock-absorbing mechanism.

[0014] As a preferred technical solution of the present utility model, it further includes:

[0015] A supporting mechanism is fixedly arranged above the base.

[0016] The supporting mechanism includes an H-shaped bracket fixedly arranged above the base. A steel pipe column is fixedly installed above the H-shaped bracket, and a steel frame is fixedly installed above the steel pipe column.

[0017] As a preferred technical solution of the present utility model, there are two groups of fixing mechanisms.

[0018] As a preferred technical solution of the present utility model, the number of the second grooves is four, and they are all opened inside the chassis.

[0019] There are four groups of shock-absorbing mechanisms, which are movably installed inside the second grooves and are evenly distributed inside the second grooves. And there are two springs and two damping cylinders inside each group of shock-absorbing mechanisms.

[0020] As a preferred technical solution of the present utility model, there are two first grooves, which are evenly distributed inside the chassis, and there are two groups of moving mechanisms, which are evenly distributed inside the first grooves.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0022] 1. By starting the first motor of the present utility model, the rotation of the bolt is driven, so that the first and second threaded sleeves gradually approach each other, which will drive the first and second fixing plates to approach each other, and move the first and second fixing plates to both sides of the main bridge truss, thereby clamping and fixing both sides of the main bridge truss. Compared with traditional devices, this device clamps and fixes both sides of the main bridge truss through the fixing mechanism, which can avoid the breakage of the rope due to the large self-gravity and large inertia when transporting the main bridge truss. This design improves the stability during the transportation of the main bridge truss and improves work efficiency.

[0023] 2. When the transporter moves in the present utility model, the main bridge truss presses down on the chassis, which will cause the moving mechanism at the bottom of the chassis to move downward, thereby causing the bottom plate to move upward, squeezing the damping cylinder, and one end of the spring will also move upward. Compared with traditional devices, this device can effectively relieve the pressure generated by the main bridge truss on the transporter through the shock absorption mechanism, reduce the damage to the transporter, extend the service life of the transporter, and avoid the large pressure generated by the main bridge truss on the transporter, resulting in damage to the transporter. This design can effectively protect the parts inside the transporter. Description of the Drawings

[0024] Figure 1 is a schematic structural diagram of the present utility model;

[0025] Figure 2 is a schematic bottom structure diagram of the present utility model;

[0026] Figure 3 is the present utility model Figure 2 partial enlarged schematic view of part A;

[0027] Figure 4 is a schematic structural diagram of the shock absorption mechanism of the present utility model;

[0028] Figure 5 is the present utility model Figure 4 partial enlarged schematic view of part B.

[0029] In the figure: 1, base; 2, bracket; 3, first motor; 4, bolt; 5, first threaded sleeve; 6, second threaded sleeve; 7, connecting frame; 8, fixing frame; 9, first fixing plate; 10, second fixing plate; 11, H-shaped bracket; 12, steel pipe column; 13, steel frame; 14, connecting bar; 15, fixing ring; 16, bottom plate; 17, first groove; 18, underframe; 19, spring; 20, damping cylinder; 21, second groove; 22, tire. Detailed implementation manner

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] As Figures 1 to 5 shown, the present invention provides an overall transfer device for the main truss of a bridge erection machine, including a base 1, a bracket 2, and an underframe 18; the bracket 2 is fixedly arranged on the front and rear sides of the base 1, and the underframe 18 is fixedly arranged on both sides of the bottom of the base 1;

[0032] A fixing mechanism is fixedly arranged below the bracket 2 and extends above the bracket 2;

[0033] The fixing mechanism includes a first motor 3 fixedly arranged below the bracket 2. Above the transmission shaft of the first motor 3, a bolt 4 is fixedly installed. At the other end of the bolt 4, a connecting frame 7 is fixedly installed. The other end of the connecting frame 7 is rotatably connected to a fixing frame 8, and the fixing frame 8 is fixedly connected to the bracket 2;

[0034] Above the bolt 4, a first threaded sleeve 5 and a second threaded sleeve 6 are movably sleeved. Above the first threaded sleeve 5, it completely penetrates above the bracket 2 and is fixedly connected to a first fixing plate 9, and the first fixing plate 9 is movably connected to the bracket 2. The second threaded sleeve 6 completely penetrates above the bracket 2 and is fixedly connected to a second fixing plate 10, and the second fixing plate 10 is movably connected to the bracket 2.

[0035] When the staff transports the main truss of the bridge, first, the main truss of the bridge is placed above the base 1, and then the first motor 3 is started. When the first motor 3 is started, it will drive the rotation of the bolt 4. When the bolt 4 rotates, since the connection between the first threaded sleeve 5 and the second threaded sleeve 6 and the bolt 4 is also provided with threads, but the threads inside the first threaded sleeve 5 and the second threaded sleeve 6 are opposite, so as the bolt 4 rotates, the first threaded sleeve 5 and the second threaded sleeve 6 will gradually approach. When the first threaded sleeve 5 and the second threaded sleeve 6 gradually approach, they will drive the first fixing plate 9 and the second fixing plate 10 to approach each other, so that the first fixing plate 9 and the second fixing plate 10 move to both sides of the main truss of the bridge.

[0036] By starting the first motor 3, driving the rotation of the bolt 4, making the first threaded sleeve 5 and the second threaded sleeve 6 gradually approach, it will drive the first fixing plate 9 and the second fixing plate 10 to approach each other, moving the first fixing plate 9 and the second fixing plate 10 to both sides of the main bridge truss, thereby clamping and fixing both sides of the main bridge truss. Compared with traditional devices, this device clamps and fixes both sides of the main bridge truss through the fixing mechanism, which can avoid the rope breakage caused by the large self-gravity and resulting large inertia when transporting the main bridge truss. This design improves the stability during the transportation of the main bridge truss and improves work efficiency.

[0037] Among them, there is also a second groove 21 opened inside the chassis 18. A first groove 17 is opened inside the chassis 18, and the first groove 17 is located below the second groove 21;

[0038] The moving mechanism is movably arranged inside the first groove 17;

[0039] The shock-absorbing mechanism is movably arranged inside the second groove 21 and is movably sleeved with the moving mechanism;

[0040] The shock-absorbing mechanism includes a bottom plate 16 movably arranged inside the second groove 21. One end of a spring 19 is fixedly connected above the bottom plate 16, and the other end of the spring 19 is fixedly connected to the top surface inside the second groove 21. A damping cylinder 20 is fixedly installed above the bottom plate 16, and the other end of the damping cylinder 20 is fixedly connected to the top surface inside the second groove 21. A fixing ring 15 is fixedly connected below the bottom plate 16, and the fixing ring 15 is movably sleeved with the moving mechanism.

[0041] When the staff is transporting the main bridge truss, first fix the main bridge truss through the fixing mechanism, and then start the transport vehicle. When the transport vehicle is moving, it will generate bumps. Due to the large weight of the main bridge truss, it will press down on the transport vehicle, and then press down on the chassis 18. However, since the moving mechanism is movably connected to the first groove 17 inside the chassis 18, it will cause the moving mechanism to move the chassis 18 downward. But since the bottom plate 16 and the second groove 21 are movably connected, it will cause the bottom plate 16 to move upward, squeezing the damping cylinder 20, and one end of the spring 19 will also move upward. When the shock absorption is completed, the damping cylinder 20 will push the bottom plate 16 back to the bottom of the second groove 21.

[0042] When the transport plane is moving, the main truss of the bridge presses down on the chassis 18, causing the chassis 18 of the moving mechanism to move downward, thereby causing the bottom plate 16 to move upward, squeezing the damping cylinder 20, and one end of the spring 19 will also move upward. Compared with traditional devices, this device can effectively relieve the pressure exerted by the main truss of the bridge on the transport plane through the shock-absorbing mechanism, reduce the damage to the transport plane, extend the service life of the transport plane, and avoid the large pressure exerted by the main truss of the bridge on the transport plane, resulting in damage to the transport plane. This design can effectively protect the parts inside the transport plane.

[0043] Among them, the moving mechanism includes a connecting bar 14 movably arranged inside the first groove 17. Tires 22 are fixedly installed at both ends of the connecting bar 14, and the connecting bar 14 is movably sleeved with the fixing ring 15 of the shock-absorbing mechanism.

[0044] Transport the main truss of the bridge to improve the transport efficiency of the main truss of the bridge.

[0045] Among them, it also includes: a support mechanism fixedly arranged above the base 1;

[0046] The support mechanism includes an H-shaped bracket 11 fixedly arranged above the base 1. A steel pipe column 12 is fixedly installed above the H-shaped bracket 11, and a steel frame 13 is fixedly installed above the steel pipe column 12.

[0047] When transporting the main truss of the bridge, it can protect both sides of the main truss of the bridge to avoid damage.

[0048] Among them, there are two groups of fixing mechanisms, which can effectively fix the main truss of the bridge, improve the stability of the main truss of the bridge, and avoid being unstable due to only one place.

[0049] Among them, the number of the second grooves 21 is four, all of which are opened inside the chassis 18;

[0050] There are four groups of shock-absorbing mechanisms, which are movably installed inside the second grooves 21 and are evenly distributed inside the second grooves 21. And there are two springs 19 and two damping cylinders 20 inside each group of shock-absorbing mechanisms.

[0051] It can make the shock-absorbing effect better and improve the working efficiency of the shock-absorbing mechanism.

[0052] Among them, the number of the first grooves 17 is two, which are evenly distributed inside the chassis 18, and there are two groups of moving mechanisms, which are evenly distributed inside the first grooves 17.

[0053] It can improve the stability of the transport plane during transportation, avoid collapse due to instability, and also improve the moving speed.

[0054] The working principle and usage process of the present utility model:

[0055] When the staff transports the main truss of the bridge, first, the main truss of the bridge is moved above the base 1, and then the first motor 3 is started. After the first motor 3 is started, it will drive the rotation of the bolt 4. After the bolt 4 rotates, since the connections between the first threaded sleeve 5 and the second threaded sleeve 6 and the bolt 4 are also provided with threads, but the threads inside the first threaded sleeve 5 and the second threaded sleeve 6 are opposite, so as the bolt 4 rotates, the first threaded sleeve 5 and the second threaded sleeve 6 will gradually approach each other. When the first threaded sleeve 5 and the second threaded sleeve 6 gradually approach each other, they will drive the first fixing plate 9 and the second fixing plate 10 to approach each other, and move the first fixing plate 9 and the second fixing plate 10 to both sides of the main truss of the bridge.

[0056] When the staff transports the main truss of the bridge, first, the main truss of the bridge is fixed by the fixing mechanism, and then the transport vehicle is started. When the transport vehicle moves, it will generate bumps. Due to the large weight of the main truss of the bridge, it will press down on the transport vehicle, and then press down on the chassis 18. However, since the moving mechanism is movably connected to the first groove 17 inside the chassis 18, the moving mechanism and the chassis 18 will move downward. However, since the bottom plate 16 and the second groove 21 are movably connected, the bottom plate 16 will move upward, causing the damping cylinder 20 to be squeezed, and one end of the spring 19 will also move upward. When the shock absorption is completed, the damping cylinder 20 will push the bottom plate 16 back to the bottom of the second groove 21.

[0057] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0058] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A main truss integral transport device for a bridge erecting machine, comprising a base (1), a bracket (2), and a bottom frame (18); characterized in that: The bracket (2) is fixedly arranged on the front and rear sides of the base (1), and the bottom frame (18) is fixedly arranged on the two sides of the bottom of the base (1); A fixing mechanism, fixedly arranged below the bracket (2), with a top portion extending upward and penetrating to the top of the bracket (2); The fixing mechanism comprises a motor 1 (3) fixedly arranged below the bracket (2); a bolt (4) is fixedly installed above the transmission shaft of the motor 1 (3); a connecting frame (7) is fixedly installed at the other end of the bolt (4); the other end of the connecting frame (7) is rotatably connected to a fixing frame (8); and the fixing frame (8) is fixedly connected to the bracket (2); The upper part of the bolt (4) is movably sleeved with a threaded sleeve 1 (5) and a threaded sleeve 2 (6); the upper part of the threaded sleeve 1 (5) completely penetrates the upper part of the bracket (2) and is fixedly connected to a fixing plate 1 (9); the fixing plate 1 (9) is movably connected to the bracket (2); the threaded sleeve 2 (6) completely penetrates the upper part of the bracket (2) and is fixedly connected to a fixing plate 2 (10); the fixing plate 2 (10) is movably connected to the bracket (2).

2. The main truss integral transport device for a bridge erecting machine according to claim 1, characterized in that: It also includes a second groove (21) opened inside the base frame (18), a first groove (17) opened inside the base frame (18), and the first groove (17) is located below the second groove (21); A moving mechanism, movably disposed inside the groove 1 (17); A shock absorbing mechanism, movably disposed inside the second groove (21) and movably sleeved with the moving mechanism; The shock absorbing mechanism comprises a bottom plate (16) movably arranged inside the second groove (21); one end of a spring (19) is fixedly connected to the top of the bottom plate (16); the other end of the spring (19) is fixedly connected to the top surface inside the second groove (21); a damping cylinder (20) is fixedly installed above the bottom plate (16); the other end of the damping cylinder (20) is fixedly connected to the top surface inside the second groove (21); a fixing ring (15) is fixedly connected to the bottom of the bottom plate (16); and the fixing ring (15) is movably sleeved with the moving mechanism.

3. The integral transport device for the main truss of a bridge erecting machine according to claim 2, characterized in that: The moving mechanism comprises a connecting strip (14) movably arranged inside the first groove (17), tires (22) being fixedly mounted on both ends of the connecting strip (14), and the connecting strip (14) is movably sleeved with a fixing ring (15) of the shock absorbing mechanism.

4. The main truss integral transport device for a bridge erecting machine according to claim 1, characterized in that: Also included are: A supporting mechanism, fixedly arranged above the base (1); The support mechanism comprises an H-shaped bracket (11) fixedly arranged above the base (1), a steel pipe column (12) fixedly installed above the H-shaped bracket (11), and a steel frame (13) fixedly installed above the steel pipe column (12).

5. The integral transport device for the main truss of a bridge erecting machine according to claim 2, characterized in that: The number of the second grooves (21) is four, and all are opened inside the bottom frame (18); The shock absorbing mechanism has four groups, which are movably mounted inside the second groove (21) and evenly distributed inside the second groove (21), and each group of the shock absorbing mechanism has two springs (19) and two damping cylinders (20).

6. The integral transport device for the main truss of a bridge erecting machine according to claim 2, characterized in that: There are two grooves (17) evenly distributed inside the base frame (18), and there are two groups of moving mechanisms evenly distributed inside the grooves (17).

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