Tatras 147

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Tatra 147 6 × 6 tractor
Beroun, DOD Probotrans 2007, Tatra 128 II.JPG
Construction time: 1957-1961
Number of pieces: about 500
Developing country: CzechoslovakiaCzechoslovakia Czechoslovakia
engine
Type T 111 A-8, V12 diesel, air-cooled
Displacement 14,825 cm 3
Bore / stroke 110/130 mm
compression 16.5 / 1
Injection pump 2 six-cylinder Motorpal
High performance 132.5 kW (180 PS) at 1800 rpm
Max. Torque 726 Nm at 1200 rpm
Power transmission
Two-disc dry clutch, hydraulically operated, with pneumatic amplification, mechanical four-speed gearbox, pneumatically assisted, with two-speed additional gearbox and two-stage planetary gearbox, all-wheel drive, front-wheel drive can be switched off, reduction gear in the wheel hubs, differential locks
chassis
Central tube frame, pendulum axles, telescopic shock absorbers, tires 11.00–20, front axle designed with mechanical worm steering and suspended as a pendulum half-axle with leaf spring, hydraulic power steering, rear wheel axle designed as a pendulum half-axle and sprung with a semi-elliptical longitudinal leaf spring
Brakes
Pneumatic dual-circuit service brake system with drum brakes, mechanical parking brake, trailer brake system with dual-line connection
construction
Cab behind the bonnet, fixed, 3 seats, 2 doors
Dimensions, weights and performance
Gauge v / h 2,080 / 2 × 1,800 mm
Length Width Height 6,130 / 2,500 / 2,610 mm
wheelbase 2,900 + 1,220 mm
Ground clearance 290 mm
Empty weight 9,655 kg
payload 9,000 kg
Top speed 61 km / h
consumption 34 l per 100 km

The Tatra 147 was a heavy three-axle truck produced by the Czechoslovak vehicle manufacturer Tatra . This type was developed from the Tatra 111 and was built in series from 1957. The successor model was the Tatra 138 .

operation area

The Tatra 147 was redesigned from the Tatra 111 to a dump truck by the Research Institute for Construction and Ceramic Machines Brno , which is why it was initially named Tatra 111 Dumpcar . The chassis of the donor vehicle had been shortened and a rear tipper was added. The vehicle was intended for the transport of stones, bulk material and earth in rough terrain. Due to the shortened wheelbase, the car and the all-wheel drive were given a high degree of maneuverability and cross-country mobility.

It is not known exactly how many vehicles of this type were made. Production ended in 1961, and according to one source about 500 copies were made, another source speaks of 1,024 dump trucks manufactured. The vehicles were primarily used in opencast mines and quarries , where they could cope with any situation thanks to their maneuverability and off-road mobility. A few copies were also exported to the GDR .

According to the sources, 2 copies are said to have been preserved so far.

technology

Drive motor of the Tatra 147

Seen from the front, the vehicle is very similar to the Tatra 111 , the only differences are in the side view. Even the distinctive shape of the driver's cab is still very similar to the Tatra 111 due to the negative inclination of the front windows and thus differs from the Tatra 141, which is more popular in Germany . Like all trucks from Tatra were also Hinterkipper after the Tatra principle produced, ie with central tube frame , all-wheel drive and spur gear - differential gear . The vehicle had 11.00-20 tires, single tires on the front wheels and twin tires on the rear wheels. Due to the Tatra principle, the wheels had a positive camber when rebounding .

The drive motor of the rear tipper was the T 111 A-8 . It was a twelve-cylinder, four- stroke , air-cooled diesel engine . The engine had 3 camshafts. The engine was lubricated by pressure circulation .

The steel trough of the rear tipper held 5 m 3 and had protection for the driver's cab. To reduce vibrations of the chassis during loading, it had a double floor. 50 mm thick wooden planks were stored in it. Tilting was done hydraulically by operating a lever in the driver's cab. The average tilting time was approx. 20 seconds.

  • Rear view of the Tatra 147 with the tipper open

  • from the cab you can see the great resemblance to the Tatra 111

  • another preserved Tatra 147 in Bratislava

literature

  • Joachim Köster: GDR truck imports from Czechoslovakia, Poland, Romania and Hungary . Motorbuch-Verlag, Stuttgart 2015, ISBN 978-3-613-03758-8 .

Individual evidence

  1. ↑ a b Internet site about the technology of the Tatra 147 on the Tatraportal
  2. ^ A b Joachim Köster: GDR truck imports from Czechoslovakia, Poland, Romania and Hungary . Motorbuch-Verlag, Stuttgart 2015, page 44, ISBN 978-3-613-03758-8 .

Web links

Commons : Tatra 147  - collection of images