The invention relates to a method of tamping a switch by immersion of tamping tools into ballast of a track.
Tamping a switch is difficult inasmuch as, due to the irregular course of the rails and auxiliary devices such as wing rails, check rails, signal sensors and the like which are frequently present, the immersion of the tamping tools and the application of track lifting devices is often possible only to a limited extent. This requires a concentrated monitoring of the tamping zone by the operator and great experience for assessing an employability of the said working devices.
According to AT 391 903, it is already known to scan a switch by means of contact-less sensors immediately ahead of the tamping section.
It is the object of the present invention to provide a method of the kind mentioned at the beginning with which an efficient tamping of a switch is possible while making work easier for the operator.
According to the invention, this object is achieved with a method of the specified type by means of the features cited in the characterizing part of the main claim.
Due to this kind of representation of the sleeper crib, limited in each case to the current work area, the operator is able to quickly recognize existent tamping zones and to assess whether tamping tools can be employed. Above all, it can be decided quickly whether the tamping tools can be immersed into the ballast at least to a reduced extent without damaging the switch. The same possibility for quick assessment is naturally also available for the lifting devices for correcting the position of the switch.
Additional advantages of the invention become apparent from the dependent claims and the drawing description.
The invention will be described in more detail below with reference to an embodiment represented in the drawing in which
A switch tamping machine 1 shown in
Provided immediately rearward, with regard to a working direction 5, of the tamping units 2, which have tamping tools 8, is a work cabin 6 in which there is located, in addition to various control devices, also a monitor 7 to be observed by an operator. At a front machine section 9 of the switch tamping machine 1, with regard to the working direction 5, an array of photo cameras 10 is arranged.
The method according to the invention will now be described in more detail: As can be seen in
This stored reference photo 13 is automatically made available on the monitor 7, positioned in the work cabin 6, for observation by the operator as soon as the tamping tools 8 are situated above the switch section 12 shown by the reference photo 13.
The reference photo 13 is taken as a top view of the switch section 12 in relation to a reference line 14—defined as track center of the track travelled upon by the switch tamping machine 1—and a reference section a defined by a track gauge.
The operator is now in a position to be able to optimally assess the already mentioned limited situation of possible tamping zones 15 for employing the tamping tools 8.
As shown as an advantageous auxiliary aid in
The tamping situation shown in
In an alternative embodiment, the tamping tools 8 can also be represented, i.e. superimposed on the photo, in a simplified manner in the shape of a preferably rectangular outline (see
As indicated in
Number | Date | Country | Kind |
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A 285/2015 | May 2015 | AT | national |
Filing Document | Filing Date | Country | Kind |
---|---|---|---|
PCT/EP2016/000594 | 4/9/2016 | WO | 00 |
Publishing Document | Publishing Date | Country | Kind |
---|---|---|---|
WO2016/177446 | 11/10/2016 | WO | A |
Number | Name | Date | Kind |
---|---|---|---|
3595170 | Plasser | Jul 1971 | A |
4165693 | Theurer | Aug 1979 | A |
4165694 | Theurer | Aug 1979 | A |
4356771 | Theurer | Nov 1982 | A |
4986189 | Theurer et al. | Jan 1991 | A |
5090329 | Theurer | Feb 1992 | A |
6311624 | Theurer | Nov 2001 | B1 |
6662728 | Theurer | Dec 2003 | B2 |
20180119363 | Lintz | May 2018 | A1 |
Number | Date | Country |
---|---|---|
391903 | Dec 1990 | AT |
13635 | May 2014 | AT |
2340801 | Sep 1999 | CN |
7022725 | Feb 1973 | DE |
0424811 | May 1991 | EP |
Entry |
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Hongwei Zhu, “Automatic Recognition System of Railway Sleeper Image”, Application of Electronic Technology (Nov. 30, 1999), pp. 20-22, DOI:10.161157/ j.issn.0258-7998—Statement of Relevance. |
Guangxue Chen et al., “Rockets-based Weather Modification Technology”, China Meteorological Press, (Jan. 31, 2008) pp. 344-345—Statement of Relevance. |
Number | Date | Country | |
---|---|---|---|
20180119363 A1 | May 2018 | US |