RU2245954C1 - Tie-tamping unit - Google Patents

Abstract

FIELD: railway transport; maintenance and repair of permanent way.

SUBSTANCE: proposed tie-tamping unit designed for consolidation of track ballast contains frame moved by drive in vertical plane, holders carrying tamping tools with plates on ends are installed on frame for turning around horizontal axles. Unit is furnished with vibratory driven and tamping tool feed hydraulic cylinders. Tamping tools in number of four pairs are arranged at two sides of each of two ties and from each side of rail, plates of each pair of tamping tool being pointed to each other, and tamping tools of two pairs arranged along tamping unit and arranged between ties are displaced relative to each other across tamping unit. Vertical axles of tamping tools arranged between ties are located in one vertical plane passing through axis of symmetry of unit, and vertical axes of tamping tools and plates arranged in adjacent ballast boxes are located in vertical planes parallel to said vertical plane. Plates of tamping tools located in side vertical planes are displaced through value exceeding thickness of plate with possibility of additional vibratory movement perpendicular to main vibratory movement of all tamping tools transmitted from vibration generator and spring-loaded members.

EFFECT: increased capacity, improved quality of ballast consolidation by decreasing resistance to penetration of tie tamping tools into ballast and decreasing formation of spaces behind plates of tamping tools.

6 dwg

Description

The invention relates to devices for the construction and repair of railway tracks, in particular to devices for sealing ballast railway tracks.

The best known is a tamping unit containing a frame that is moved by the drive in a vertical plane. Holders are mounted on the frame, which rotate around horizontal axes, bearing hammers with plates at the ends. The lining is placed in four pairs on two sides of each of the two sleepers and on each side of the rail. The plates of each pair of treads are directed towards one another. Shocks of two pairs located along the unit and placed between the two sleepers are offset relative to one another across the unit / 1 /.

The disadvantage of this design is the close location of the plates of the lining located in the lateral planes, which complicates the passage of soil between the plates. During the working movement of the taps, including the compression of the plates and their simultaneous vibration, the formation of voids in the soil occurs, since the plates move at a much higher speed compared to the vibration speed, and this leads to the fact that the soil on the sides of the plates does not have time to move behind them .

The technical result of the invention is to increase productivity and improve the quality of ballast compaction by reducing the penetration resistance of the treads into the ground and reduce the formation of voids behind the tread plates.

This is achieved by the fact that the tamper unit containing a frame moved in a vertical plane by the drive, mounted on it with the possibility of rotation around horizontal axes spaced along the unit and located across it, holders carrying lining with plates at the ends, a vibrating drive and lining supply hydraulic cylinders connected with holders, tampers mounted with the possibility of placing four pairs on two sides of each of the two sleepers and on each side of the rail, plates of each pair of tacks towards one another, the hammers of two pairs located along the aggregate and placed between the two sleepers are displaced one relative to the other across the aggregate, the vertical axes of the indicated linings of two pairs are located in one vertical plane passing through the axis of symmetry of the aggregate, and the vertical axes of the linings of the corresponding pairs are located in the lateral vertical planes on both sides of the specified one vertical plane parallel to it, has a plate plates, located in the lateral vertical plane displacements by an amount greater than the thickness of the plate, with the possibility of additional oscillatory motion perpendicular to the main oscillatory motion of all the taps from the oscillation generator and spring-loaded elements.

Figure 1 shows the tamping unit, a General view; figure 2 is a diagram of the work of treads; figure 3 is a section bB of the holders of the lining of the tamper unit; figure 4 is a section bb of the holders of the lining of the tamper unit (top view); figure 5 is a section GG of the holder of the lining of the tamper unit; Fig.6 is a section DD of the holder of the lining of the tamper unit.

The tamping unit is designed for knocking out two wooden sleepers 1 located directly next to each other and therefore has two pairs of knocking tools 2 and 3 on each longitudinal side of the rail located in the longitudinal direction of the unit or rail, each with four holders 4 carrying the knockers 5 and installed with the possibility of rotation around horizontal axes. They are located on the supporting frame 6 with the possibility of rotation.

The frame 6 can be moved in height with the help of a drive 7 along the vertical guide columns 8. The tamping tools can be fed to the depth and moved relative to each other with the help of the drive 9 and driven into a vibration state thanks to the central vibratory drive 10, which imparts oscillatory movements to the brackets 5 and plates 11 with a frequency of 35 ... 40 Hz in a direction perpendicular to the planes 14, 15, 18. The magnitude of the vibrational movements is 5 ± 1 mm. Each of the pairing tools of both pairs is connected by the holder 4 located in the final region to the straight tail part of the plates 5 having a plate 11 in the lower end region. Both internal plates 5 of both pairs of the grinding tools 2 and 3 are designed for immersion in the same sleeper box 12, are located by their middle axes 13, including their holders 4, in the common and passing perpendicular to the longitudinal direction of the machine or rail - the transverse vertical plane 14 on the supporting frame 6. The inner punch 5 lie their middle axes 13 to, and including, the holder 4 of the tail section in the transverse plane 14, which is simultaneously a symmetry plane transverse tamping unit.

All internal and external shocks 5 are located in three transverse planes 14 and 16 extending perpendicularly to the longitudinal direction of the machine or rails. The plates 11 located in the planes 15 and 16 are brought into an additional vibration state from the oscillation generator 22 with a frequency of 50 ... 40 Hz. The oscillations are directed along the planes 15 and 16. The magnitude of the vibrational movements is 3 ± 0.5 mm.

These vibrational movements eliminate the formation of voids behind the plates during compression of the sleepers with the help of drives 9, which leads to an increase in the quality of soil compaction in inter-sleepers and under the sleepers, as well as to an increase in the speed of soil compaction.

The displacement of the plates 11 located in the planes 15 and 16 by an amount α, which is more than the thickness of the plate, reduces the resistance to penetration of the plates into the ground when they are pushed into the sleeper box while lowering the carrier frame 6 from the drive 7, because there is the possibility of penetration of the soil directly between the ends of the plates 11.

Additional oscillatory movements of the plates 11 located in the planes 15 and 16 are transmitted directly from the pads 5 fixed in the fasteners 17, which are moved relative to the holders 4 by the oscillation generator 22 and the spring-loaded elements 24. The springs 25 are installed in the holder 4 and fixed by covers 26 and bolts 27 .

The tamping unit operates as follows.

The track machine stops over the section of the track where the ballast needs to be sealed. Using drive 7, the frame 6 is moved with two pairs of tamping tools 2 and 3 along the vertical guide columns 8. The tamping tools 2 and 3 are fed to the depth and moved relative to each other by the feed drives 7. The vibrator 10 puts the hammer 5 with plates in vibration 11. The feed drives 9 carry out the compress-expansion of the holders 4 with the strikers 5. The oscillation generator 22 performs oscillatory movements of the holders in the holders 4 in the direction perpendicular to the compress-expand.

At the same time, the strikes are buried in the ballast and, moving to the sleepers and making oscillatory movements from the vibrodrive, compact the ballast.

Sourse of information

1. The tamping unit. USSR patent No. 1776279. Cl. E 01 B 27/16, 1992.

Claims (1)

A tamper unit containing a frame that can be moved in a vertical plane by the drive, mounted on it with the possibility of rotation around horizontal axes, spaced apart along the unit and holders located across it, bearing hammers with plates at the ends, a vibrodrive and lining feed cylinders connected to the holders, the hammers are mounted with the possibility of placing four pairs on two sides of each of the two sleepers and on each side of the rail, and the plates of each pair of tacks are directed towards one another, the two-pair bumps located along the unit and placed between the two sleepers are displaced one relative to the other across the unit, and the vertical axes of the two pairs of pods are located in one vertical plane, which is the central plane passing through the axis of symmetry of the unit, and the vertical axes of the pods of the respective pairs are located in the lateral vertical planes on both sides of the specified one vertical plane parallel to it, characterized in that the plates of the treads located in the lateral verticals planes are shifted by an amount greater than the thickness of the plate, with the possibility of additional vibrational movement perpendicular to the main vibrational movement of all taps, transmitted from the oscillation generator and spring-loaded elements.

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