Dragging rail device

Abstract

The utility model belongs to the technical field of auxiliary equipment of bridge erecting machines, and particularly relates to a towing rail device. The rail dragging device comprises a winch, a rail dragging device and a rail dragging device, wherein the winch is arranged on a middle supporting leg of the bridge girder erection machine; the fixed pulley is arranged on a front supporting leg of the bridge erecting machine; the rail dragging assembly is installed at the front end of the steel rail and used for upwarping the front end of the steel rail; and the steel wire rope extends out of the winch, bypasses the fixed pulley and then is connected to the towing rail assembly. According to the rail dragging device, when the winch pulls the steel rail to move, under the action of the rail dragging assembly, the front end of the steel rail tilts and moves forwards, the front end of the steel rail tilts, so that the rear end of the steel rail touches the ground, the contact area of the steel rail and a bridge floor is reduced, and the steel rail can slide on the bridge floor more conveniently; and the front end of the steel rail can be prevented from colliding with the uneven position of the bridge floor, and the steel rail can be transferred more efficiently. By arranging the limiting blocks, when the steel rail moves, a fixed included angle is formed between the V-shaped plate and the steel rail, so that stable movement of the steel rail is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge erection machine auxiliary equipment, and particularly relates to a rail dragging device. Background Art

[0002] Most of my country's high-speed railways are based on bridges, and high-speed railways are laid on elevated bridges. When building elevated bridges, bridge-building machines are generally used. Bridge-building machines are equipment that places prefabricated beams on prefabricated bridge piers.

[0003] When the bridge-building machine is moving, it lays rails on the top surface of the erected box girder and moves forward along the rails. After the erection of one box girder is completed, the main machine of the bridge-building machine needs to perform a through-hole operation. At this time, some rails need to be removed from the surface of the previous box girder and transferred to the surface of the next box girder. When transferring the rails, the rails are first moved to the transfer trolley, and then the transfer trolley is manually pushed to the transfer point, and then the rails are unloaded from the transfer trolley. This method of rail transfer is cumbersome to operate and relatively inefficient, which seriously affects the construction progress.

[0004] Therefore, it is necessary to provide an improved technical solution to the above-mentioned deficiencies in the prior art. Utility Model Content

[0005] The purpose of the present utility model is to provide a drag rail device to at least solve the above-mentioned problems existing in the prior art.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] A rail dragging device, comprising:

[0008] A winch, the winch being arranged on the middle leg of the bridge erecting machine;

[0009] A fixed pulley, the fixed pulley being arranged on the front supporting leg of the bridge erecting machine;

[0010] A drag rail assembly, which is mounted on the front end of the rail and is used to tilt the front end of the rail when the rail is dragged;

[0011] The wire rope extends from the winch, passes around the fixed pulley and is connected to the drag rail assembly.

[0012] As described above, the drag rail device preferably comprises a V-shaped plate, the middle portion of the V-shaped plate is rotatably arranged at the front end portion of the rail through a rotating shaft, and the wire rope is connected to the end portion of an upper side of the V-shaped plate.

[0013] In the rail dragging device as described above, preferably, both ends of the rotating shaft are provided with V-shaped plates, the rotating shaft passes through the rail, and the two V-shaped plates are respectively located on both sides of the rail.

[0014] As described above, the drag rail device is preferably provided with a connecting rod between the ends of the two V-shaped plates located on one upper side, and the steel wire rope is connected to the connecting rod.

[0015] In the above-mentioned drag rail device, preferably, a pull ring is provided on the connecting rod, and the steel wire rope is connected to the pull ring.

[0016] The drag rail device as described above is preferably provided with rollers rotatably at the end of the other side of the lower portion of the two V-shaped plates.

[0017] In the rail dragging device as described above, preferably, limit blocks are provided on both sides of the front end of the rail, and the limit blocks are used to prevent the V-shaped plate from excessively rotating.

[0018] As described above, the rail dragging device is preferably provided with a pulley bracket on the front support leg of the bridge erection machine.

[0019] In the rail dragging device as described above, preferably, the fixed pulley is fixed to the pulley bracket via a shackle.

[0020] Beneficial effects:

[0021] In this rail-dragging device, when the winch pulls the rail to move, the front end of the rail is tilted and moves forward under the action of the rail-dragging assembly. Since the front end of the rail is tilted, only the rear end of the rail touches the ground, reducing the contact area between the rail and the bridge deck. This not only makes it easier for the rail to slide on the bridge deck, but also prevents the front end of the rail from colliding with uneven parts of the bridge deck, and can more efficiently transport the rail.

[0022] And under the action of the limit block, when the rail moves, the V-shaped plate and the rail form a fixed angle to ensure the stable movement of the rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings constituting part of this application are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention.

[0024] Figure 1 This is a schematic diagram of a rail dragging device according to an embodiment of the utility model installed in a bridge erection machine;

[0025] Figure 2 This is a side view of a drag rail assembly according to an embodiment of the present invention installed on the front end of a rail;

[0026] Figure 3 This is a front view of a drag rail assembly according to an embodiment of the present invention installed on the front end of a rail;

[0027] Figure 4This is a schematic diagram of the state of the rail moving according to one embodiment of the present invention.

[0028] In the figure: 1. Winch; 2. Pulley bracket; 3. Wire rope; 4. Shackle; 5. Fixed pulley; 6. Drag rail assembly; 61. V-plate; 62. Rotating shaft; 63. Connecting rod; 64. Pull ring; 65. Roller; 10. Rail; 101. Limit block; 20. Middle support leg; 30. Front support leg. DETAILED DESCRIPTION

[0029] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 are within the scope of protection of the present invention.

[0030] In the description of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0031] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0032] According to the specific embodiment of the present utility model, Figure 1-4 As shown, the utility model provides a drag rail device, which includes:

[0033] The winch 1 is arranged on the middle leg 20 of the bridge erecting machine.

[0034] The fixed pulley 5 is arranged on the front support leg 30 of the bridge erecting machine.

[0035] The drag rail assembly 6 is installed at the front end of the rail 10 and is used to lift the front end of the rail 10 when the rail 10 is dragged to move.

[0036] The steel wire rope 3 extends from the winch 1, passes around the fixed pulley 5, and is connected to the drag rail assembly 6.

[0037] In this rail-dragging device, when it is necessary to drag the rail 10 forward, the winch 1 pulls the wire rope 3 back, and under the action of the rail-dragging assembly 6, the front end of the rail 10 is tilted and moves forward. Since the front end of the rail 10 is tilted, only the rear end of the rail 10 touches the ground, reducing the contact area between the rail 10 and the bridge deck. This not only makes it easier for the rail 10 to slide on the bridge deck, but also prevents the front end of the rail 10 from colliding with uneven areas of the bridge deck, and can more efficiently transport the rail 10.

[0038] The drag rail assembly 6 includes a V-shaped plate 61 , the middle portion of the V-shaped plate 61 is rotatably arranged at the front end portion of the rail 10 via a rotating shaft 62 , and the wire rope 3 is connected to the end portion of the upper side of the V-shaped plate 61 .

[0039] In one embodiment of the present application, during the movement of the rail 10, the wire rope 3 applies a force to the end of an upper side of the V-shaped plate 61, so that the V-shaped plate 61 rotates with the end of a lower side as a fulcrum. At this time, the middle part of the V-shaped plate 61 drives the front end of the rail 10 to lift, and the front end of the rail 10 is off the ground, so that only the rear end of the rail 10 is on the ground. During the process of the wire rope 3 pulling the V-shaped plate 61 to drag the rail 10 to move, the rail 10 always keeps the front end off the ground and the rear end on the ground, thereby greatly facilitating the transportation operation of the rail 10.

[0040] A V-shaped plate 61 is provided at both ends of the rotating shaft 62. The rotating shaft 62 passes through the rail 10, and the two V-shaped plates 61 are respectively located on both sides of the rail 10. In one embodiment of the present application, a V-shaped plate 61 is provided at each end of the rotating shaft 62. The two V-shaped plates 61 support the rail 10 in the middle, so that the force on the drag rail assembly 6 is more uniform, and the rail 10 will not deflect when being dragged, thereby ensuring stable movement of the rail 10.

[0041] A connecting rod 63 is provided between the ends of one upper side of the two V-shaped plates 61, and the steel wire rope 3 is connected to the connecting rod 63. In one embodiment of the present application, the connecting rod 63 is connected to the ends of the upper sides of the two V-shaped plates 61, which not only strengthens the overall structural strength of the drag rail assembly 6, but also provides a location for the steel wire rope 3 to be connected.

[0042] A pull ring 64 is provided on the connecting rod 63, and the steel wire rope 3 is connected to the pull ring 64. In one embodiment of the present application, the pull ring 64 is provided to facilitate the connection of the steel wire rope 3; in this embodiment, the steel wire rope 3 is fixed by the steel wire rope 3 clamp after passing around the pull ring 64.

[0043] A roller 65 is rotatably provided at the end of the other side of the lower portion of the two V-shaped plates 61. In one embodiment of the present application, the roller 65 is rotatably provided at the end of the lower side of the V-shaped plate 61. When the rail 10 is dragged, the roller 65 at the lower side of the V-shaped plate 61 rolls on the surface of the box beam, making it easier to drag and move the rail 10.

[0044] Limit blocks 101 are provided on both sides of the front end of the rail 10 to prevent excessive rotation of the V-shaped plate 61. In one embodiment of the present application, when the V-shaped plate 61 rotates with the end of one of its lower sides as a fulcrum, the V-shaped plate 61 cannot rotate relative to the rail 10 after it rotates to contact the limit blocks 101. As a result, when the rail 10 moves, the V-shaped plate 61 forms a fixed angle with the rail 10, ensuring stable movement of the rail 10.

[0045] A pulley bracket 2 is provided on the front leg 30 of the bridge erection machine. A fixed pulley 5 is fixed to the pulley bracket 2 via a shackle 4. In one embodiment of the present application, a slide rail bracket is provided, and the fixed pulley 5 is fixed via the shackle 4, making it easy to install and remove the fixed pulley 5.

[0046] When using the rail-dragging device to drag the rail, the winch retracts the wire rope, and the wire rope applies tension to the end of the upper edge of the V-shaped plate, causing the V-shaped plate to rotate. The V-shaped plate rotates until it contacts the limit block and stops rotating. At this time, the front end of the rail is lifted up by the V-shaped plate, so that only the rear end of the rail touches the ground. The wire rope continues to apply tension to drag the rail forward, thereby realizing efficient rail transfer operations.

[0047] It will be understood that the above description is merely exemplary and the embodiments of the present application do not limit this.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are within the scope of protection of the pending claims of the present invention.

Claims

1. A drag rail device, characterized in that: The drag rail device comprises: A winch, the winch being arranged on the middle leg of the bridge erecting machine; A fixed pulley, the fixed pulley being arranged on the front supporting leg of the bridge erecting machine; A drag rail assembly, which is mounted on the front end of the rail and is used to tilt the front end of the rail when the rail is dragged; The wire rope extends from the winch, passes around the fixed pulley and is connected to the drag rail assembly.

2. The drag rail device according to claim 1, characterized in that: The drag rail assembly includes a V-shaped plate, the middle portion of the V-shaped plate is rotatably arranged at the front end portion of the rail through a rotating shaft, and the wire rope is connected to the end portion of an upper side of the V-shaped plate.

3. The drag rail device according to claim 2, characterized in that: Both ends of the rotating shaft are provided with V-shaped plates, the rotating shaft passes through the rail, and the two V-shaped plates are respectively located on both sides of the rail.

4. The drag rail device according to claim 3, characterized in that: A connecting rod is provided between the ends of the two V-shaped plates on one upper side, and the steel wire rope is connected to the connecting rod.

5. The drag rail device according to claim 4, characterized in that: A pull ring is provided on the connecting rod, and the steel wire rope is connected to the pull ring.

6. The drag rail device according to claim 3, characterized in that: Rollers are rotatably arranged at the end of the other side of the lower part of the two V-shaped plates.

7. The drag rail device according to any one of claims 1 to 6, characterized in that: Limiting blocks are provided on both sides of the front end of the rail, and the limiting blocks are used to prevent the V-shaped plate from excessively rotating.

8. The drag rail device according to any one of claims 1 to 6, characterized in that: A pulley bracket is provided on the front supporting leg of the bridge erecting machine.

9. The drag rail device according to claim 8, characterized in that: The fixed pulley is fixed to the pulley bracket via a shackle.

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