JP5065406B2 - A tamping unit for tamping directly under the track - Google Patents

Description

  The present invention relates to a tamping unit for simultaneously tamping three sleeper trees directly below a track of the type described in the superordinate concept part of claim 1, comprising a front tool carrier and a front tool carrier in the working direction. A rear tool carrier that is directly adjacent to the tool carrier, and one vibration drive device is arranged corresponding to each of the tool carriers, and the vibration drive devices are respectively adjacent to each other by a squeeze drive device. An inner ramming tool adjacent to the carrier, an outer ramming tool positioned at a distance from the adjacent tool carrier, and a middle positioned between the inner ramming tool and the outer ramming tool. Tool carrier that is coupled to the tamping tool and can be swiveled in the working direction around one swivel axis. It has been supported, to those of the type coupled to compaction tool having a longitudinal axis.

  Such a tamping unit is known from US Pat. No. 5,133,263. In order to simultaneously tampen directly under the three sleepers, it is necessary to arrange a large number of ramming tools side by side very closely in the machine longitudinal direction. However, these tamping tools must be correspondingly spaced from each other in order to carry out the squeeze movement smoothly to compact the ballast.

  An object of the present invention is to provide a tamping unit that can be rammed even under a track having a smaller sleeper spacing by improving the tamping unit of the type described at the beginning.

This object is achieved according to the invention in that the tamping unit having the features of claim 1, i.e., the pivot axis of the inner tamping tool is perpendicular to the pivot axis of the middle tamping tool. Is positioned low by a distance (a) extending in the direction,
b) A tamping feature characterized in that the longitudinal axis of both ramming tools is positioned off-center with respect to both pivoting axes of the inner and middle tamping tools and closer to the pivoting axis of the inner tamping tool. Solved by the unit.

  By shifting the swivel axis of the inner tamping tool in this way, the tamping tool can be arranged more densely in the machine longitudinal direction. In principle, however, the structural structure of the tamping unit, which has already proved advantageous, can be sufficiently maintained. Therefore, with the tamping unit formed in this way, it is possible to ram the area directly below the track having a relatively small sleeper spacing without any problem.

  Further advantages of the present invention are evident from the claims below and the description of the drawings.

  In the following, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 3 is a schematic view of a tamping machine having a tamping unit for simultaneously tamping three sleeper trees on a track at the same time. It is an enlarged view of a tamping unit. It is the figure which schematized the tamping tool of the tamping unit.

  The tamping machine 1 shown in FIG. 1 has one machine frame 4 that can travel on a track 3 by a rail travel device 2. A tamping unit 5 is provided between the rail traveling devices 2. This tamping unit 5 is formed to simultaneously ramify the three sleepers 6 directly below. For the correction of the track position, a track lift unit 7 and a reference system 8 are provided. The tamping machine 1 can travel in the working direction 10 using the travel drive device 9.

  As can be seen from FIGS. 2 and 3, the tamping unit 5 includes a front tool carrier 11 in the working direction 10 and a rear tool carrier 11 directly adjacent to the front tool carrier 11. Each height-adjustable tool carrier 11 has one inner ramming tool 12, a middle ramming tool 13, and an outer ramming tool. In this case, the both inner ramming tools 12 are directly arranged side by side. The outer ramming tools 14 are arranged with the largest distance between them. The middle tamping tool 13 is disposed between the inner ramming tool 12 and the outer ramming tool 14, respectively. The ramming tools 12, 13, 14 arranged corresponding to each one of the tool carriers 11 are coupled to the vibration drive device 16 via the squeeze drive device 15 and swivel in the working direction 10 about the swivel axis 17. It is made possible. The tamping tools 12, 13, 14 comprise a pickle-shaped tamping tool 19 having a longitudinal axis 18.

  Below, the special arrangement | positioning with the tamping tool 12,13,14 and its turning axis is demonstrated. These special arrangements allow tamping according to the invention directly under the track 3 with a small sleeper spacing.

  The pivot axis 17 of the inner tamping tool 12 is positioned lower with respect to the pivot axis 17 of the middle tamping tool 13 at a vertical distance a (FIG. 3). The longitudinal axis 18 of the tamping tool 19 is positioned off-center with respect to both pivot axes 17 of the inner and middle tamping tools 12, 13 and close to the pivot axis 17 of the inner tamping tool 12. Yes. The pivot axis 17 of the inner and middle tamping tools 12, 13 has an equal horizontal distance b with respect to a vertical line 21 passing through the axis 20 of the vibration drive 16. The vertical distance a corresponds to about 30 to 50% of the horizontal distance b. A lever portion 22 of the inner ramming tool 12 that is provided below the pivot axis 17 and is provided for fixing the position of the ramming tool 19 is shorter than the lever portion 23 of the middle ramming tool 13. Is formed.

Claims (4)

A tamping unit (5) for simultaneously tamping the three sleepers (6) immediately below the track (3), the tool carrier (11) in front of the working direction (10), and the tool carrier (11 ) And a rear tool carrier (11) directly adjacent to each other, and one vibration driving device (16) is arranged corresponding to each of the tool carriers (11), and the vibration driving device (16) Respectively, by means of a squeeze drive (15), the inner ramming tool (12) adjacent to the adjacent tool carrier (11) and the outer tool arranged at a distance from the adjacent tool carrier (11). Coupled to a tamping tool (14) and a middle tamping tool (13) positioned between the inner ramming tool (12) and the outer ramming tool (14) The tamping tools (12, 14) are supported on the tool carrier (11) so as to be pivotable in the working direction (10) about a single pivot axis (17), respectively, and the longitudinal axis (18 In the form of being coupled to a tamping tool (19) having
a) the pivot axis (17) of the inner tamping tool (12) is positioned lower than the pivot axis (17) of the middle tamping tool (13) by a distance (a) extending vertically;
b) The longitudinal axis (18) of both tamping tools (19) is off-center with respect to both pivot axes (17) of the inner and middle tamping tools (12, 13) and the inner ramming tool (12 A tamping unit for tamping the three sleepers immediately below the track at the same time.   The pivot axis (17) of the inner and middle tamping tools (12, 13) has an equal horizontal distance (b) with respect to a vertical line (21) passing through the axis (20) of the vibration drive (16). The tamping unit according to claim 1.   The tamping unit according to claim 2, wherein the vertical distance (a) corresponds to about 30-50% of the horizontal distance (b).   A lever part (22) of the inner tamping tool (12) installed below the pivot axis (17) and provided for fixing the position of the tamping tool (19) is a middle tamping tool. 4. The tamping unit according to claim 1, wherein the tamping unit is formed shorter than a lever portion (23) installed below the pivot axis (17).

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