Method of rail track tamping and stabilising and tie-tamper to this end

FIELD: railway transport.

SUBSTANCE: in compliance with first version, proposed method comprises lifting the tract above designed level, ballast is compacted, and rail track is lowered into designed position by vertical load. In compliance with second version, vertical load for said rail track lowering is applied, in tamping zone, to tamped tie in interval between starting tamping tool to lift and moving it to another tie. Vertical load of rail track compaction varies from 35 t to 100 t and reaches maximum tolerable train load. Tie-tamper comprises a frame resting upon rail bogies, tamping tools arranged on both sides of tie-tamper lengthwise axis. Vertical load generator is mounted on moving frame lower beam along vertical axis of tamping unit symmetry and develops compaction load of 35 t to 100 t.

EFFECT: higher quality of tie tamping, higher efficiency of tie-tamper.

4 cl, 1 dwg

 

The invention relates to a method of tamping and stabilization track and refers mainly to the lining, tamping, leveling machines cyclic and continuous-cycle operation.

It is known that the ballast tamping lining, tamping, leveling machines, including continuous method of repair, does not ensure the stability of the rail-sleeper grid to the train load. In the first days of operation inevitably deformation, which lead to deviations from the design position of the path in the longitudinal, transverse profile and plan.

The known method of tamping and stabilization of railway track rails when lifted temporarily in specified position (above design) and line stages, and then attach to the rail and tie the lattice vibrational motion in horizontal and vertical direction and vertical load force behind lined path to achieve the desired draft and move the path in the project ("0") position (see patent US 5172635).

There is also known a method of tamping and stabilization (see patent RU NO. 2143512, 6E01B 27/20), namely, that the way to raise the above project, step by step line, then press behind the padded section to the ballast vertical force and lowered to a predetermined position, and the vertical load at the beginning automatically stand is the culprit to the value of precipitation, and then decrease to values unloading.

The disadvantages of the existing solutions are: low accuracy of the installation path in the design position due to mutual influence on each other instrumentation systems stabilizing vehicles and machines and the mismatching of the time and place of the zone of tamping and precipitation zone path. In addition, sediment paths should only be carried out in continuous movement (for exceptions vertical drawdown path in place of the stop) and so when using machines cyclic action is necessary in the beginning when you first travel to lift path, and then again to drive it (without stops) with constant illumination of the stabilizing means. Because of this, the plant capacity is cut in half.

To eliminate these disadvantages of vertical load for rainfall applied in the area of the tamping we line to the pole in the period of time from the beginning of the hoisting tamping body prior to its move to the next sleeper. In addition, the design spelaeogriphacea machine drive vertical load on the ballast placed on the frame of the machine (not on the frame stabilizing means). The drive of the vertical load on the ballast can be placed on the movable frame of the tamping body (block), on the lower beam of the moving frame (where n is bivachny block with vertical it move) on the vertical axis of symmetry of the tamping unit.

The design of the device is greatly simplified and does not contain a separate vehicle stabilizing means comprising a frame, trucks, control and measuring system, a complex stabilizing the Assembly.

The drive for the precipitation path is placed on the frame of the machine. It is possible to install it on the lower beam of the moving frame along the axis of symmetry of the tamping unit. Design in this case as compact as possible, and the hydraulic cylinder sediments (down to the ballast) is placed above we line sleeper. Make horizontal oscillations (which undermine fastening, significantly reduce the accuracy of measuring system, affect previously corrected track section and lead to its drawdown) rail and tie the lattice is not required, since the magnitude of the vertical force for precipitation of the path is not less than the 35-100 t and considerably exceeds the real power, the maximum possible from the effects of rolling stock wheels taking into account both static and dynamic component. Therefore, after the settlement perepodema (same for both rails) ways, for example, 2-15 mm, in the same place where the lining, after gripping the edge of your of Podbel, include cylinder precipitation, hoisting tamping unit returns the rails in "0" position and compacting ballast under only that p is dutoi sleeper to the value significantly more than this comes from the train load. Therefore, when operating the stable position of the rails will not change from the wheels of the rolling stock. The accuracy of alignment is high, so as to raise and stabilize (press) path in the same place in the cycle time alignment signal measuring system the lining, tamping, leveling machine, the accuracy of which (system) the most high.

Thanks to the combination of time hoisting tamping body and clamp the rails to the ballast, the implementation of actions to stabilize the path does not reduce the overall performance of the machine and it remains as high as possible. You can perform the function of the actuator precipitation is not specifically designed for this purpose, a link (e.g., hydraulic cylinder), and existing product lifting and straightening unit (PRU) by incorporating its hoisting cylinders to clamp the rails to the ballast during the lifting of the sealing bodies (tamping units). The distance between PRU and tamping body is usually not more than 1 m, and therefore the rigidity of the rail-sleeper grid allows for such a small shoulder to pass from the PRU to the ballast considerable effort, sufficient to effectively seal the ballast directly under the we line sleeper.

The drawing shows a machine is on the implementation of the proposed method of alignment. The product is to operate as follows. Include the drive 1 and drive up to the first pole. Down tamping blocks (right and left) 2 and 3 and produce the tamping and leveling path. Moreover rails raised on 2-25 mm above project ("0") level. After gripping the edge of your (Podlaski come close to the pole) include the rise of the tamping units and include hydraulic cylinders 4, 5, which press the rail and tie bars to the ballast. Time, the amount of force lowering of the right and left rails against the action of the hydraulic cylinders 4, 5 regulate to ensure the installation path in the design position during the time from the end of gripping the edge of your before moving tamping blocks one step to the next zone of the bearing. The value of the pressing force is 35-100 t and more. During firing of the cylinders 4, 5 movable frame 6, 7 (in which the tamping units can be moved vertically up or down, and they frame 6, 7 together with units 2, 3 can be moved across the path) constitute a rigid support for the transfer of forces from the actuators of the hydraulic cylinders 4, 5. After lifting tamping units in the upper position, disconnect the hydraulic cylinders (right, left) clamp 4, 5, include the mechanism of movement 1 and move to the next sleeper. Control bearing, value given perepodema, installation design position using signals control the on-measuring system 8, transferred to the Executive bodies (cylinders) lifting and straightening-(stabilizing) device 9. The machine has a frame 10 supported on the undercarriage 11.

The application of this invention improves the performance significantly simplify the design of the device for stabilizing the track, to combine in a single node, for example, tamping the function block rapping and additional power ballast consolidation vertical force, or be used for this purpose (stabilization path) lifting and straightening unit (PRU) of the machine by enabling the lifting cylinders to clamp tie of the lattice to the ballast.

1. The method of tamping and stabilization of the track, namely, that the way to raise the above project, compacted ballast, then lower rail and tie bars in the specified position of the vertical load, characterized in that the vertical load for rainfall applied in the area of the tamping we line to the pole in the period of time from the beginning of the rise of the tamping body prior to its move to the next sleeper.

2. The method of tamping and stabilization of the track, namely, that the way to raise the above project, compacted ballast, then lower rail and tie bars in the specified position of the vertical load, otlichalis the same time, that the magnitude of vertical load for precipitation is 35 to 100 tons and reaches the maximum possible train load.

3. The method of tamping and stabilization of railway track according to claim 2, characterized in that the vertical load for precipitation pathways include hydraulic cylinders lifting and straightening device on a clip rail-sleeper grid to the ballast.

4. Spelaeogriphacea machine for tamping and stabilization track containing supported on the undercarriage frame, tamping bodies installed on both sides of the longitudinal axis of the machine, characterized in that the drive of the vertical load on the ballast placed on the lower beam of the moving frame along the vertical axis of symmetry of the tamping unit and creates a burden for precipitation the way from 35 to 100 tons



 

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