SU1030454A1 - Device for lifting assembled track section - Google Patents

Abstract

A DEVICE FOR LIFTING A RAIL-TRAIN GRID OF A RAILWAY TRACK, containing a beam carrying three rail-gripping bodies for each rail of the track, consisting of roller clamps for rails fixed by means of levers on sliders. /. . .-, mounted in guide rails mounted on the beam, and support rollers mounted on sliders of extreme rail-grab bodies, power cylinders for lifting middle rail-grab bars and control elements of these cylinders, characterized in that, in order to increase the reliability of operation when passing the butt joints of rails it is provided with a follower carriage placed in the zone of medium rail-grasping bodies, supported on rollers with two flanges for interacting with the pads and hinged to the beam by t g, and an arm-pusher mounted on the said trolley and interacting with the elements of control of the lifting cylinders of the medium rail-bearing organs. (L so oi ate 4

Description

The invention relates to a device for the construction and repair of a railway track, in particular to devices for the continuous lifting of a rail and sleep rail grid of a railway.

A device for lifting a rail track grid of a railroad track is known, which contains a beam with three rail-gripping bodies, for each rail of the track, consisting of roller grippers for rails fixed by means of levers on sliders mounted in the rail mounted on the beam, and supporting rollers mounted on sliders, extreme rail-gripping bodies, power cylinders for lifting medium rail-gripping bodies and elements for controlling these cylinders 1.

A disadvantage of the known device is that; what is not ensured its reliable operation during the passage of butt joints in the process of continuous lifting of the track and rail grid. The reason for this is that the sensors located on the arms of the roller grippers send a signal to the actuating cylinders only at the moment of opening the roller grippers on the lining of the butt joints and in the presence of hydraulic inertia and the actuating time of the hydraulic cylinders relative to the head rail, which leads to the discharge of the lattice and the need to recharge the track machine.

The following rollers on each rail-gripping body do not interact with the linings; they give a command only to limit the stroke of the ram at the moment of lowering the rail from the opened roller clamps to the liner.

In addition, a large number of follow-up rollers with individual sensors (spools) and sensors (spools) on each roller grip make the electro-hydraulic circuit with a large number of executive elements very complex, which drastically reduces the reliability of the device as a whole.

The purpose of the invention is to improve the reliability of the device during the passage of butt joints of rails.

To achieve this goal, a device for raising a rail-and-sleeper grid of a railroad track, comprising a beam carrying three rail-gripping bodies for each track rail, consisting of roller grippers for rails fixed by means of levers on sliders installed in beam-mounted, and supporting rollers, mounted on sliders of extreme rail-gripping bodies, power cylinders for lifting medium rail-gripping bodies and the control elements of these cylinders are fitted with sozahvatnyh bodies servo trolley on rollers bearing against two flanges for engagement with plates and pivotally attached to the beam by means of rods, and a pusher-arm mounted on said carriage and cooperating with the control actuators lifting medium relsozahvatnyh elements organov.Na FIG. 1 shows a device for 0 raising a rail and sleep grid of a railroad track mounted on a lifting machine; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. 1, at the moment of lifting the grating with roller rail clamps between 5 butt joints; in fig. 4 - the same, at the moment of passage by the butt-joint device.

The device for raising the rail-sleeper grid of the railway track contains a beam 1, which, by means of the crown of theine 2, is suspended w, arnier through the finger 3 to the lifting mechanism 4 of the track machine 5,

Three rail-gripping bodies are fixed on the beam for each rail of the track. Each rail grip body consists of a slider b, to which a roller grip for a rail consisting of two levers 8 carrying rotating rollers 9 sec) is suspended pivotally on the fingers 7. Both gripping arms 8 are connected between 0 by an adjustable spring 10. The slides 6 are mounted in guides 11, equipped with pins 12 and fixed on beam 1.

Each slider 6 extreme rail-gripping bodies is equipped with an adjustable roller 5 at a height of 5 and suspended from a plate 14 mounted on rails 11 by means of a bolted joint 15. Slider suspension b is carried out with the help of rod 16, pin 17 and nut 18. Between the slider B and the stove 14 is installed with spring 19.

The slider b of the middle rail-grasping body is connected with the power cylinder 20 of lifting this slider by means of an L-shaped razloplechy lever 21 mounted on the beam 1 by means of a hinge 22. The power cylinder 20 is fixed rigidly and horizontally on the beam 1.

To provide the required angle of rotation of each rail grip body.

0 on the pins 12 of the plate 14 are equipped with brackets 23, which interact with adjustable screw stops 24 rigidly attached to the beam 1.

In the zone of the middle rail-grasping body, the following cart 25 is mounted,

5 resting on rollers 26 with two flanges. The height of the flange of each roller 26 is larger than the height of the rail head. The cart 25 is suspended from beam I by

t g 27. On the frame of the trolley 25 a bracket-pusher 28 is mounted, which interacts with the hydraulic distributor 29 mounted on the beam 1.

The device works as follows.

The mechanism 4 for lifting the traveling machine lowers the device with the opened roller grippers onto the lifted railway track until the supporting rollers 13 come into contact with the track rails. Then the roller clamps are fixed with the catch of the rail head, the spring 10 is installed and tensioned to the required force. Adjustment work is performed once on each type of rail rail. For this, the rack is hung out by a small amount.

With the aid of the screw stops 24 and the brackets 23, the rail-gripping bodies are rotated on the pins 12 relative to the beam 1 at a certain angle opposite to the direction of movement. This is done to prevent the formation of a run-up resulting from the combined movement of the rollers 9 (moving along the rail at an angle of rotation).

Lowering the slider 6 with the middle rail-gripping organ to the extreme lower position (in this position the extreme rail-gripping organs carry the load), set the height rollers 13 with a small gap between the rail head and the support roller.

The adjustment is carried out when the slider 6 of the middle rail-gripping body is in the uppermost position and its roller grabs carry the entire load from the raised grating. With the help of the rod 16 and the nut 18, the extreme rail-gripping bodies are installed in such a way that the support roller 13 abuts against the rail head, and there is a small gap between the nut 18 and the plate 14. Such an installation of the extreme rail-gripping bodies allows the slider 6 to occupy a floating position and continuously orient the roller clamps relative to the rail heads of the lifted track grid.

After the adjustment work indicated, the grille is lifted to the ballast. The rail sleeper is graded by a lifting mechanism 4.

by the required amount and the track is driven. During the lifting of the lattice of the path between the stack joints, the middle rail-gripping organ carries the entire load, while the extreme ones occupy a floating position.

With the passage of rail butt joints rail-gripping bodies work as follows.

The front roller grabs, opening on the lining, pass the butt-joint. When this spring 19 through the slider 6 continue to continuously press the support rollers 13 to the corresponding rail, the reference rollers 9 relative to the heads of the rails lifted lattice. Behind the overlays, the front roller grippers are free to close. Beyond that, the front rollers 26, hitting the butt plates with their flanges, are raised upwards (Fig. 4) together with the following cart 25. The frame of the follow cart 25, lifting up, acts on the hydraulic distributor 29 by means of the push rod 28. Immediately on command from the hydraulic distributor 29, the slider 6 of the middle rail-gripping body is lowered by the cylinder 20, while the entire load from the lifting of the track grating from the middle roller rail clamps is transmitted to the extreme and middle roller grips, opening at the joint The new pads, in the oriented position relative to the rail head, pass the butt joints unhindered and close behind it. The rise of the middle slider 6 and with it the transfer of the load from the extreme roller grippers to the middle ones takes place only after the flanges of the second pair of rollers 26 of the follow-up trolley 25 are removed from the butt plate, while the reverse command is carried out.

The operation of the rear roller grippers in the direction of travel of the track machine during the passage of the butt rail connection is similar to that of the front ones.

The proposed device allows, with the passage of a corresponding roller gripper of the butt joining of rails, to previously relieve the load from this gripper and to ensure continuous orientation of the grippers for the rails relative to the rail heads, which increases the reliability of the device.

A-A

23 79 77

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rig. 2

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B - B

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27

Claims (1)

DEVICE FOR LIFTING THE RAILWAY RAIL LATTICE OF RAILWAY ROAD, comprising a beam carrying three rail gripping bodies for each rail of the track, consisting of roller grips for rails, fixed by means of levers on slide rails, mounted in rails mounted on the beam and support rails on the rails, cm bodies, power cylinders for lifting medium rail gripping bodies and controls for these cylinders, characterized in that, in order to increase the reliability of work when passing de butt joints of rails, it is equipped with a follow-up trolley located in the middle of the rail-gripping bodies, supported by rollers with two flanges for interaction with the plates and pivotally mounted on the beam using rods, and a pusher arm mounted on the indicated trolley and interacting with power cylinder control elements lifting of medium gripping organs. Fig.?