RU2569451C2 - Method of laying of links of rail-cross-tie grid at curves at areas containing at least two rail tracks and cross-arm of laying crane - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: invention relates to methods and device for laying of the assembled rail links, and can be used to lay down links at curved areas of the railway. For links laying of rail-cross-tie grid at curve at areas containing at least two tracks the railroad laying crane lowers rear end of the link of the rail-cross-tie grid on the ballast, arranging the link in plan beyond the design chord, one trackway is connected with first adjoining trackway of the previously laid link. The installed on the cross-arm correcting hydraulic cylinder, secured by means the lock device on the railway of the adjacent track is used to move the laid link relatively to the adjacent track to such position, where it is possible to install between the adjacent railways of two tracks the template with clamps. The template is installed at the front end of the laid link, and then the link is lowered. The cross-arm of the laying crane contains metal frame with installed on it clamps and blocks, also has correcting hydraulic cylinder with lock device and pump station 5. The lock device is made as stop or chain clamp.

EFFECT: expansion of functional possibilities of the cross-arm of the laying crane without significant complication of its design.

3 cl, 24 dwg

Description

The invention relates to methods and devices for laying mounted track links and can be used for laying links in curved sections of a railway track with a radius of less than 350 meters.

A device is known for laying a link of a rail-sleeper lattice of a railway track (see, for example, the description of the USSR author's certificate for invention No. 1744166 of class Е01В 29/02 with priority of 05/07/1990). The device is designed for mechanized curvature of the link of the rail-sleeper lattice when laying the railway track in curves and contains a main beam fixed to the lifting body, bearing the main grips and the link gripping and bending mechanism, including a hydraulic cylinder with two shoulders levers connected with additional grips for the rails, which are mounted on transverse beams connected to the main consoles, and the main beam is connected to the consoles and the transverse beams using hinges and elastic springs.

In the manufacture of this device, it will be necessary to provide such a transverse rigidity of the beam so that it does not deform when the link is bent. An increase in the transverse rigidity of the beam will increase its metal consumption and, consequently, its weight. In addition, the beam has a relatively complex structure and highly specialized purpose, and its use in laying straight sections of the railway track will be inappropriate.

A known method of laying the rail track in curves (see, for example, the description of the USSR copyright certificate for the invention No. 827671 in the class Е01В 29/02 with a priority of 08/08/1978). The way of laying the rail track in the curves consists in laying the rail link on the ballast, joining one rail with the first adjacent thread of the previously laid link, closing the gap of the other rail with the second thread of the previously laid link, joining them and bending the link in order to increase productivity, eliminating the gap of the second rail thread and bending the link are performed simultaneously, placing it behind the project chord, and then the link is placed on the project chord.

When applying this method, considerable effort is required to adjust the position of the link in the plan and its bend, since all actions are performed on the link already laid on the ballast. In addition, the device described in the copyright certificate for implementing this method will require multiple reinstallations of hydraulic cylinders designed for lateral displacement of the link, since they have an inclination towards the bend of 70-80 °, which will increase the duration of the work.

The technical results, the achievement of which the present invention is directed, is to expand the functionality of the crosshead of the overhead crane without significantly complicating its design and increasing labor productivity.

To this end, a method is proposed for laying the links of the rail-sleeper lattice in curves in sections containing at least two paths, which consists in lowering the rear end of the link of the rail and sleeper lattice onto the ballast with the link in the plan behind the project chord, and join one rail thread from the first by an adjacent thread of a previously laid link, then, using a correcting hydraulic cylinder mounted on the traverse, fix it using a gripping device on the rail thread of the adjacent track and move imposes element relative to an adjacent path in such a position that it is possible to install the rail between adjacent strands of two ways template with grippers, and a pattern at the front end of the stacking unit, and then lower the unit.

This method can be implemented, for example, using an existing laying crane of type UK-25 / 9-18 when retrofitting its beam with a correcting hydraulic cylinder with a fixing device, as well as the equipment necessary for its functioning. For the possibility of free removal of the jaws of the load gripping devices from the rails of the stacked link after it is bent when the beam is deflected and tends to move to the axis of the track, the cross-beam of the stacking crane can be equipped with hydraulic cylinders for centering the beam with guide levers.

Figure 1 shows a stacking crane with a remote link (side view);

figure 2 - laying crane with a stacked link (side view);

in Fig.3 - view A in Fig.1 when laying the link in an external curve (the capture of the correcting hydraulic cylinder of the beam is hooked to the rail of the adjacent track);

in Fig. 4 is a view A in Fig. 1 when laying a link in an external curve (pulling the beam with the remote link to an adjacent path);

in Fig.5 is a view A in Fig.1 when laying a link in an external curve (installation and fixing of the template);

in Fig.6 is a view of B in Fig.2 when laying the link in the external curve (relieving pressure from the corrective hydraulic cylinder of the beam and lowering the link);

in Fig.7 is a view A in Fig.1 when laying the link in the internal curve (the capture of the correcting hydraulic cylinder of the beam is hooked to the rail of the adjacent track);

in Fig.8 is a view A in Fig.1 when laying a link in an internal curve (pulling up the cross-arm with a remote link to an adjacent path);

in Fig.9 - view A in Fig.1 when laying the link in the internal curve (installation and fixing of the template);

figure 10 is a view of B in figure 2 when laying the link in the internal curve (relieving pressure from the corrective hydraulic cylinder of the beam and lowering the link);

figure 11 is a section bb in figure 3;

in Fig.12 is a section GG in Fig.4;

in Fig.13 is a section DD in Fig.5;

Fig.14 is a cross-section EE in Fig.6;

in Fig.15 is a section FJ in Fig.6;

Fig.16 is a cross-section ZZ in Fig.7;

on Fig - section II in Fig;

in Fig.18 is a section KK in Fig.9;

in Fig.19 is a cross section LL in Fig.10;

in Fig.20 is a cross-section MM in Fig.10;

on Fig - traverse stacking crane (side view);

in Fig.22 is a view of H in Fig.21;

in Fig.23 is a view O in Fig.22 (guide levers are open);

in Fig.24 - view O in Fig.22 (the guide levers abut against the heads of the rails of the link).

The traverse of the laying crane contains a metal frame 1 with load gripping devices 2 and blocks 3 installed on it, and is also equipped with a corrective hydraulic cylinder 4 with a fixing device, as well as a pump station 5. A fixing device for a correcting hydraulic cylinder designed to fix its end to a rail thread of an adjacent track, can be made in the form of an abutment 6 or a chain grip 7. The traverse of the laying crane can also be equipped with hydraulic cylinders for centering the traverse 8 with guides growling s 9, designed to allow the free withdrawal of the jaws lifting devices with the rail heads of the stacking unit, after its bending at a crosshead deflection and its quest to move on the path axis.

The operation of the UK-25 / 9-18 crane with this traverse when laying the rail-sleeper lattice can be carried out both in curved sections of the track, starting from curve R300 with rails of the type P50 and P65, and in straight sections of the track. When laying the rail-sleeper lattice on straight sections of the track, the special equipment of the traverse is not involved, and it works as usual.

Before carrying out the work, the corrective hydraulic cylinder 4 must be installed on the traverse from the side of the adjacent path. To bring it into working position, it is necessary to remove the locking finger from the bracket for transporting the hydraulic cylinder and rotate it in the universal joint 10.

At the beginning of laying the links of the rail-sleeper lattice with a crane UK-25 / 9-18 in the curved sections of the track, the empty beam is carried to the ballast. After which the diesel engine is launched pumping station 5, located on the traverse. Then, operations are carried out to move the traverse to the link of the rail-sleeper lattice located on the crane, its capture by load gripping devices 2 and removal to the place of laying. At the same time, the link in the plan is located beyond the design chord of the curve.

After the removal of the link is lowering its rear end to the ballast. Then, the end of the link closest to the crane joins the stacked link and is secured by a patch on the outer (point P in Fig. 4) or on the inner (point P in Fig. 8) thread of the path.

When the traverse is working on laying the links in an external curve, a fixing device made in the form of a chain grip 7 is installed on the eye of the rod of the hydraulic cylinder 4. The hydraulic cylinder 4 extends, the gripper is installed under the sole of the rail of the adjacent track. The chain regulates the length of the cylinder with a gripper when changing the width of the interblow (from 4100 mm to 5200 mm). The hydraulic cylinder 4 begins to work on retraction, the link begins to shift until its end points coincide with the points of the laid path. Then the position of the link being bent is fixed by the template 11, the end of the link closest to the crane is joined with the laid link and secured by an overlay on the inner thread of the path. The hydraulic cylinder 4 is released, the link is lowered and joined with the previously laid link. As a result of all operations, the link is bent in the desired curve. It should be noted that to ensure the unhindered removal of the jaws of the load gripping devices 2 from the rails of the stacked link after bending, when the beam is deflected and tends to move along the axis of the track, the centering hydraulic cylinders 8 of the beam begin to work on the extension of the rods, as a result of which the guiding levers 9 turn and abut against the heads of the rails of the link, thereby ensuring the centering of the traverse relative to the link.

When the traverse is working on laying the links in the internal curve, a fixing device is installed on the eye of the rod of the hydraulic cylinder 4, made in the form of an abutment 6 for a rail of the type P50 or P65. The hydraulic cylinder 4 begins to work on the extension, pushing against the rail of the adjacent track, the link begins to shift until its end points coincide with the points of the laid path. Then the position of the link being bent is fixed by the template 10, the end of the link closest to the crane is joined with the laid link and secured by an overlay on the external thread of the path. The hydraulic cylinder 4 is released, the link is lowered and joined with the previously laid link. As a result of all operations, the link is bent in the desired curve. It should be noted that to ensure the unhindered removal of the jaws of the load gripping devices 2 from the rails of the stacked link after bending, when the beam is deflected and tends to move along the axis of the track, the centering hydraulic cylinders 8 of the beam begin to work on the extension of the rods, as a result of which the guiding levers 9 turn and abut against the heads of the rails of the link, thereby ensuring the centering of the traverse relative to the link.

Thus, in general terms, the proposed method for laying the rail track in curves in sections containing at least two tracks consists in lowering the rear end of the link of the rail-sleeper grid onto the ballast with a railway laying crane, placing the link in the plan behind the project chord, and joining one rail the thread with the first adjacent thread of the previously laid link, then, using the correction hydraulic cylinder mounted on the traverse, are fixed with its fixing device on the rail thread of the adjacent track and moved they put the stacked link relative to the adjacent track in such a position that it is possible to install a template with grips between the adjacent rail yarns of the two tracks, the pattern being placed at the front end of the stacked link, and then the link is lowered.

The proposed design of the traverse and the method of laying the links of the rail-sleeper lattice in curves in areas containing at least two paths, allows to expand the functionality of the traverse of the overhead crane without significantly complicating its design and increasing labor productivity.

Claims (3)

1. The method of laying the links of the rail-sleeper lattice in curves in areas containing at least two paths, namely, that the rear end of the link of the rail and sleeper lattice is lowered onto the ballast with a railway laying crane, placing the link in the plan behind the project chord, one rail thread is joined with the first adjacent with the thread of the previously laid link, then, using the corrective hydraulic cylinder mounted on the traverse, they are fixed with the help of its fixing device on the rail thread of the adjacent track and the stacked link is moved of relatively adjacent track in a position to be able to establish between the adjacent rail threads two paths pattern with grippers, and a pattern at the front end of the stacking unit, and then lower the unit. 2. The traverse of the laying crane, containing a metal frame with load gripping devices and blocks mounted on it and equipped with a corrective hydraulic cylinder with a fixing device, as well as a pumping station, characterized in that the fixing device of the correcting hydraulic cylinder, designed to fix its end to a rail thread of an adjacent track, made in the form of an emphasis or chain capture. 3. The traverse of the laying crane according to claim 2, characterized in that it is equipped with hydraulic cylinders for centering the traverse with guide levers.

Images