Saxon XIV HT
| XIV HT DR series 75.5 ETAT 32 PKP OKl101 NMBS / SNCB 96 |
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| Manufacturer: | Saxon machine factory , Chemnitz | ||
| Numbering: | 1801-1850 75 511-550 |
1851-1855 75 501-505 |
1856-1906 75 551-588 |
| Years of construction: | 1911-1915 | 1915 | 1917/18, 1921 |
| Retirement: | until 1970 | ||
| Number: | 50 | 5 | 51 |
| Axis formula: | 1'C1'h2t | ||
| Gauge: | 1,435 mm | ||
| Length over buffers: | 12,415 mm | ||
| Fixed wheelbase: | 2,800 mm | ||
| Total wheelbase: | 8,700 mm | ||
| Empty mass: | 60.1 t | 62.7 t | 64.2 t |
| Service mass: | 76.7 t | 79.4 t | 82.2 t |
| Friction mass: | 47.7 t | 48.8 t | 49.5 t |
| Wheel set mass: | 15.9 t | 16.3 t | 16.5 t |
| Top speed: | 75 km / h | ||
| Indexed performance: | 990 PSi | ||
| Driving wheel diameter: | 1,590 mm | ||
| Impeller diameter: | 1,065 mm | ||
| Control type: | Heusinger | ||
| Cylinder diameter: | 550 mm | ||
| Number of cylinders: | 2 | ||
| Piston stroke: | 600 mm | ||
| Boiler overpressure: | 12 bar | ||
| Number of heating pipes: | 132 | ||
| Heating pipe length: | 4,000 mm | ||
| Grate area: | 2.30 m² | ||
| Radiant heating surface: | 11.8 m² | ||
| Tubular heating surface: | 110.5 m² | 119.8 m² | 110.5 m² |
| Superheater area: | 36.2 m² | 65.0 m² | 36.2 m² |
| Evaporation heating surface: | 122.3 m² | 131.58 m² | 122.3 m² |
| Water supply: | 8.0 m³ | 8.0 m³ | 9.0 m³ |
| Coal supply: | 2.5 t | 2.5 t | 2.8 t |
| Brakes: | Westinghouse air brake w. Z. | ||
Triple-coupled tank locomotives of the Royal Saxon State Railways for mixed service on main and branch lines were designated as Saxon class XIV T. The Deutsche Reichsbahn classified the locomotives in the 75.5 series from 1925 .
history
The Sächsische Maschinenfabrik in Chemnitz developed a three-coupled tank locomotive as the successor to the class IV T , which was only coupled twice . The new locomotive was to be used primarily in front of the suburban trains in the metropolitan areas.
From 1911 to 1921 a total of 106 locomotives were then produced in three series by the Kgl. Saxon State Railways put into service. At the time of its appearance, the new locomotive was considered the heaviest 1'C1 'locomotive in the area of Central European railway administrations. The locomotives were not only used in front of suburban trains, but ultimately in front of all types of passenger trains on the secondary and main lines in the Saxon low mountain ranges.
After the First World War, some of the locomotives had to be assigned to Poland , Belgium and France as reparations in accordance with the provisions of the Versailles Treaty . After 1920, the newly founded Deutsche Reichsbahn was only able to add 83 locomotives to their inventory, which they classified in the 75.5 series from 1925.
The eleven locomotives that remained in Poland later went to the Polish State Railways PKP and were given the numbers OKl101.01-11. The Belgian SNCB assigned the numbers 9670, 9674, 9676 and 9686 to the four machines it had taken over. Another eight locomotives went to the French state railways under the numbers 32-916 to 32-923.
After the end of the Second World War, 88 locomotives remained with the Deutsche Reichsbahn . These included some vehicles that had been handed over to Poland and France in 1918. In 1968 there were still 25 machines in the factory, but they were soon shut down.
75 501 remained from the German Steam Locomotive Museum Neuenmarkt - Wirsberg , which was loaned to the Schwarzenberg Railway Museum in 2002 , and 75 515 in the Saxon Railway Museum in Chemnitz -Hilbersdorf, which had previously been exhibited for a long time in Karl-Marx-Stadt Hauptbahnhof and there on June 14, 1983 was badly damaged in a shunting accident.
technical features
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The locomotives had a long boiler consisting of two sections with two steam domes that were connected by an internal connecting pipe. The boiler was fed by injectors; from 1856 onwards, the locomotives were equipped with Knorr feed pumps with a preheater located across the boiler. Later, the preheater was placed to the left of the chimney on all locomotives, which gave the locomotives their typical appearance. Schmidt type superheaters were used.
A two-cylinder engine with simple steam expansion and Heusinger control serves as the steam engine. The middle, second coupled axle is driven.
The drive axle and the two coupling axles are rigidly mounted in the frame. The flanges of the driving axle are weakened for better cornering. The running axles are designed as Adam axles and have leaf springs for resetting.
A Westinghouse air brake was installed as a locomotive brake. The air pump was originally located on the left of the smoke chamber, later it was placed on the right.
The water supply of 9 m³ was located in two water boxes on the side and in a container arranged in the frame. The coal supply was behind the cab.
As branch locomotives, all machines were equipped with a steam flare mechanism.
literature
- Andreas Bauer-Portner: Saxony pony. in: Modelleisenbahner 64 (2015) 7, pp. 12-19
- Heinrich Horstmann, Jürgen-Ulrich Ebel: The 75.5 series . EK-Verlag, Freiburg, 2010, ISBN 978-3-88255-177-8
- Fritz Näbrich, Günter Meyer, Reiner Preuß: Lokomotivarchiv Sachsen 2 . transpress VEB Verlag for Transport, Berlin, 1983, or Alba Publication Alf Teloeken GmbH + Co KG, Düsseldorf, ISBN 3-87094-096-4
- Erich Preuß, Reiner Preuß: Saxon State Railways . transpress Verlagsgesellschaft mbH, Berlin, 1991, ISBN 3-344-70700-0
- Günther Reiche: Richard Hartmann and his locomotives . Oberbaumverlag Berlin / Chemnitz, 1998, ISBN 3-928254-56-1