RU97703U1 - DEVICE FOR TRANSVERSE FASTENING OF A FLOAT RAILWAY BRIDGE - Google Patents

Abstract

 1. An anchor device for laterally securing the pontoons of a navigable railway bridge, comprising a cargo winch rigidly mounted on a support structure, a pulley block including a movable and fixed blocks, a horizontal guide for moving a movable pulley block along it with the possibility of its fixation, made of parallel beams, rigidly fixed in the transverse direction between each other by transverse elements, and a pontoon deck rigidly mounted on the longitudinal axis, flexible rods, bottom anchor, cast which consists in the fact that it is equipped with an anchor chain connecting the movable unit with a flexible rod of the bottom anchor, a beacon installed at the junction of the anchor chain with a flexible rod of the bottom anchor, a clutch rigidly mounted at the end of the horizontal guide, a chain stopper rigidly mounted at the end of the horizontal guide in front of the clutch, the pulley block is equipped with an anchor chain engaging element for any link. ! 2. An anchor device for laterally securing pontoons of a floating railway bridge according to claim 1, characterized in that the horizontal guide is divided into two sections, rigidly connected by the ends, both sections are laid on the upper side, one section on the lower side. ! 3. Anchor device for laterally securing the pontoons of a navigable railway bridge according to claim 1, characterized in that the lock and chain stopper are configured to remove the anchor chain from above.

Description

The utility model relates to the field of construction of floating railway bridges used for passing railway rolling stock and, in particular, is intended for their transverse fastening.

A device for lateral fastening of a floating railway bridge, including bottom anchors, flexible rods, two anchor devices, each of which contains a die plate consisting of pontoons, a support structure, a winch with a cable, a chain hoist consisting of two blocks located on an inclined guide, a device for fastening flexible rods [1].

The disadvantage of this device is the need to use a die.

Known lateral fastening using heavy ship anchors, consisting of a heavy ship anchor, an attached cable, pulled by a winch with a load capacity of 3-5 tons, mounted on wooden bars attached to the pontoon, and a beacon installed in the middle of the anchor cable [2].

A disadvantage of the known lateral fastening is the impossibility of using suction cups weighing up to 15 tons instead of heavy ship anchors weighing up to 600 kg.

A device is known for laterally securing a floating railroad bridge, consisting of suction cup anchors, anchor cables attached to them and anchor devices, including a support structure installed between the noses of adjacent pontoons, a hoist with a lifting capacity of 5 tons mounted on it, a chain hoist, the fixed block of which is attached to the supporting structure, and the movable block is located above the water or in the water depending on the tension of the chain hoist and is attached to the anchor cable installed after a certain number of to thereby bridge pontoons that the load on the pontoons, held one-anchor SUCTION corresponds retention suction anchors [3].

The disadvantages of this device are the location of the chain hoist above the water, which complicates its maintenance and operation, as well as the location of the winch between the pontoons, which is not safe for staff.

The closest in technical essence and the achieved effect is an anchor device for laterally securing the pontoons of a floating railway bridge, containing a cargo winch rigidly mounted on a support structure, a pulley block including a movable and fixed blocks, flexible rods, a bottom anchor, a horizontal guide for moving a movable pulley block with the possibility of its fixation, made of parallel beams, rigidly fixed in the transverse direction between each other, and rigidly installed located on the longitudinal axis of the pontoon deck [4].

The disadvantage of this device is

- Insufficient length of compensation for drift of the bottom anchor;

- the impossibility of a device of bottom transverse fastening;

- the impossibility of installing the bottom anchor not along the axis of the pontoon;

- the impact of the vertical load from the anchor cable on the nose of the pontoon.

The technical result of the utility model is to increase operational characteristics due to:

- increase in the length of compensation for drift of the bottom anchor;

- the capabilities of the device as a top and bottom transverse fastening;

- the possibility of installing the bottom anchor not along the axis of the pontoon;

- exclusion of the impact of the vertical load from the anchor cable on the bow or stern of the pontoon.

The technical result is achieved by the fact that the anchor device for laterally securing the pontoons of the floating railway bridge, comprising a cargo winch rigidly mounted on a support structure, a pulley block including a movable and fixed blocks, a horizontal guide for moving the pulley block block along it with the possibility of its fixation, made of parallel beams rigidly fixed in the transverse direction between themselves by transverse elements, and rigidly mounted on the longitudinal axis of the pallet pontoons, flexible rods, bottom anchor, equipped with an anchor chain connecting the movable unit to the flexible rod of the bottom anchor, a beacon installed at the junction of the anchor chain with the flexible rod of the bottom anchor, a claw rigidly mounted on the end of the horizontal guide, a chain stopper, rigidly installed at the end of the horizontal guide in front of the claw, the pulley block is equipped with an element for engaging the anchor chain at any link.

In addition, the horizontal guide is divided into two sections, rigidly connected by the ends, on the top side the horizontal guide consists of both sections, from the bottom side of one section.

The utility model is illustrated by drawings.

Figure 1 presents the anchor device for lateral fastening of the floating railway bridge, front view; figure 2 is the same, a top view; figure 3 anchor device, section aa; figure 4 presents a diagram of the fastening of the output ferry anchor devices for the transverse floating railway bridge, top view.

An anchor device for laterally securing a floating railroad bridge includes a support structure made, for example, in the form of a frame 1, rigidly mounted across the pontoon 2, a winch 3 with a cable 4, stored in a chain hoist, placed on a horizontal guide laid along the pontoon 2, and rigidly attached , for example, with bolts (not shown in the drawing), on the one hand to the frame 1, on the other hand, to its rigging equipment, for example, to the foundation of the windlass 5.

The polyspast consists of a fixed 6 block rigidly attached to a horizontal guide, for example, bolts (not shown in the drawing), and a movable 7 block mounted for movement along a horizontal guide.

The end of the anchor chain 8 is attached to the movable block 7, the other end of which is attached to the end of the anchor cable 9 mounted on the beacon 10. The other end of the anchor cable 9 is attached to the bottom anchor, for example, the suction armature 11.

At the end of the horizontal rail mounted and rigidly fixed on it, for example, by bolts (not shown in the drawing), the clutch 12 and the chain stopper 13, which are configured to remove the anchor chain 8 from them from above.

The horizontal guide includes the top 14 and bottom 15 sections, rigidly connected by the ends. When the anchor device is located on the top side, it consists of the top 14 and bottom 15 sections, and from the bottom side - only from the bottom 15 sections.

Each section consists of two beams 16 located in parallel and rigidly interconnected by strips 17 made, for example, of steel sheet.

The movable unit 7 has a locking element, made, for example, in the form of a hook 18, for engaging in one of the strips 17, and an engaging element 19 of the anchor chain 8 for any link.

On the bow of the pontoon 2 there is a device for dumping the suction armature (not shown in the drawing). To lower the suction armature 11 to the bottom, a cargo cable is attached to it (not shown in the drawing).

A device for lateral fastening of a floating railway bridge is assembled and mounted as follows.

The river part of the bridge is collected from bridge ferries, which include pontoons 2.

The number of pontoons 2 fixed by one anchor device is determined depending on the speed of the flow of water, wind and bottom soils.

Two anchor devices are mounted on the pontoon 2 - one on the top side, the other on the bottom side in the following order.

A frame 1 is mounted on the pontoon 2 and secured with bolts. A winch 3 is mounted on the frame 1 and bolted. After that, the horizontal guide is laid on the pontoon and rigidly fixed with bolts on one side to the frame 1, on the other hand, on the foundation of the windlass 5. On the horizontal guide, a fixed block 6, clutch 12 and chain stopper 13 are installed and rigidly fixed on it with bolts. After that, a movable block 7 is mounted on a horizontal rail and the chain hoist is stored. The end 7 of the anchor chain 8 is connected to the movable block 7 by means of the engagement element 19.

A device for resetting the suction armature is mounted on the pontoon 2. An anchor-suction cup 11 is laid on it, which is connected to the movable block 7 by means of a cargo cable.

A beacon 10 and an anchor cable 9 are placed on a neighboring pontoon. An end of the anchor chain 8 is attached to it.

After that, the bridge ferry approaches the place where the upper anchor-suction cup 11 is discharged. The upper anchor-suction cup 11 is dumped into the water and lowered to the bottom by means of a winch 3, a chain hoist and a cargo cable.

The cargo cable is disconnected from the movable unit 7 and the bridge steam is lowered downstream, returning the anchor cable 9, the beacon 10 and the anchor chain 8 to the water from the upper side.

A bridge ferry approaches the discharge point of the bottom suction armature 11. The downstream anchor suction 11 is thrown into the water and lowered to the bottom by means of a winch 3, a chain hoist and a cargo cable. From the movable 7 unit disconnect the cargo cable. The bridge ferry rises upstream, returning the anchor cable 9, the beacon 10 and the anchor chain 8 into the water from the lower side, and becomes in the line of the bridge. With the help of winches 3 and chain hoists, the anchor cables 9 are stretched, and the movable 7 blocks are hooked onto the straps 17 by hooks 18.

Pontoons 2 secured by this anchor device are held in the transverse direction.

The anchor chain 8, the chain stopper 13 and the engagement element 19 are designed to compensate for the drift of the suction armature 11, exceeding the length of the chain hoist.

If the chain hoist is insufficient to compensate for the drift of the suction armature 11, the anchor chain 8 is fixed with a chain stopper 13, the chain hoist is stretched and the anchor chain 8 is hooked by the closest link to the engaging element 19. After that, the chain stopper 13 release the anchor chain 8, and the chain hoist can again compensate for the anchor drift suction cup 11.

Clus 12 is designed to provide the ability to change the direction of tension of the anchor chain 8, for example, with lateral fastening of the output ferry.

The proposed anchor device for laterally securing the pontoons of the floating railway bridge is a simple structure, convenient for assembly, maintenance and operation. In addition, it allows you to fix the output steam without transferring bending moment to the tension or articulated joint.

Information sources

1 RU Cl No. 2224838 09/13/02

2 Nafm railway bridge NZhM-56. Technical description and instructions for installation, transportation, storage and operation. - M .: Military Publishing House, 1977, Fig. 97.

3 Railway bridge NZhM-56. Addition to the technical description and instructions for installation, transportation, storage and operation. - M .: Military Publishing House, 1997, Fig. 3.1.

4 RU U1 55343 03/13/2006.

Claims (3)

1. An anchor device for laterally securing the pontoons of a navigable railway bridge, comprising a cargo winch rigidly mounted on a support structure, a pulley block including a movable and fixed blocks, a horizontal guide for moving a movable pulley block along it with the possibility of its fixation, made of parallel beams, rigidly fixed in the transverse direction between each other by transverse elements, and a pontoon deck rigidly mounted on the longitudinal axis, flexible rods, bottom anchor, cast which consists in the fact that it is equipped with an anchor chain connecting the movable unit with a flexible rod of the bottom anchor, a beacon installed at the junction of the anchor chain with a flexible rod of the bottom anchor, a clutch rigidly mounted at the end of the horizontal guide, a chain stopper rigidly mounted at the end of the horizontal guide in front of the clutch, the pulley block is equipped with an anchor chain engaging element for any link. 2. An anchor device for laterally securing pontoons of a floating railway bridge according to claim 1, characterized in that the horizontal guide is divided into two sections, rigidly connected by the ends, both sections are laid on the upper side, one section on the lower side. 3. An anchor device for laterally securing the pontoons of a navigable railway bridge according to claim 1, characterized in that the lock and chain stopper are configured to remove the anchor chain from above.