Truck tractor KAMAZ-54909-090-B5 (M1840)

Truck tractor KAMAZ-54909-090-B5 (M1840) 4х4Н system of the hydraulic drive of the front wheels KAMAZ H-Drive.

The exposition of JSC “KAMAZ” at the bauma trade fair CTT RUSSIA 2018 was shown tractors with unusual wheel formula – 4х4Н. The last time the same KAMAZ premiere lit up at the exhibition Comtrans`2017. Today we find out some of the details of this interesting model received index KAMAZ-54909-090-B5 (M1840).

At first glance, is an ordinary KAMAZ – 5490 has already been known, even without the prefix NEO. However, if the KAMAZ-5490 is a leading only the rear axle and wheel formula 4×2, the subject of today’s analysis is the ability to connect to the movement and the front wheels.KAMAZ-54909-090-B5 (M1840) is focused primarily for the construction industry or should be used where it is expected to transport out of roads with improved surface, and the seasonal impassability of roads or in snowy conditions and slippery roads to work in the tipper road trains. This seemingly ordinary truck equipped with a unique hydrostatic drive system of the front wheels that makes the car all-wheel drive.Two-axle tractor unit to improve cross equipped with hydraulic drive front wheels KAMAZ H-Drive, was developed in PJSC “KAMAZ”.

Road off-road tasks traffic

In the construction industry employs a lot of road and transport technology away from public roads. But sometimes the way these machines overlap, for example, during unloading at the construction site tipper road train running on the longest shoulder. All operators of road trains construction purpose tipping semi-trailers or other add-ins faced with the necessity of having to truck the tractor at least a minimum off-road Arsenal, as in Congress, with asphalt work on the delivery of construction cargo does not end.Then all means are good: from “short” the main couples, and tires with “evil” tread pattern to many exotic locks and wheel formulas. However, the return transport on asphalt this Toolkit short-term use becomes a burden for high-speed traffic and is not conducive to fuel economy.

Aggregate implementation plug-hydrostatic front-wheel-drive: hydraulic unit with oil cooler (2) oil pump [b]high pressure hose suitable for front hub (photo 1)[/b]

Aggregate implementation plug-hydrostatic front-wheel-drive: hydraulic unit with oil cooler (2) oil pump, high pressure hose, suitable for the front hub (photo 1)

Aggregate implementation hydrostatic front-wheel-drive plug-in: [b]the hydraulic unit with oil cooler (photo 2)[/b] oil pump, high pressure hose, suitable for the front hub (photo 1)

Aggregate implementation plug-hydrostatic front-wheel-drive: hydraulic unit with oil cooler (2) oil pump, high pressure hose, suitable for the front hub (photo 1)

Hydrostatic wheel formula tractor

Here “KAMAZ” and offers his vision of solving this problem – KAMAZ-54909-090-B5 – tractor, built on the model 5490, but with connected front hydrostatic drive their own development. The principle of operation of KAMAZ H-Drive next. Pump-driven LUMP, activates a special clutch in the front wheel hubs, are exposed to the oil pressure begin to serve him torque. The system will signal electronic control unit, which receives information from the abs about the difference between the angular speeds of wheels of the rear axle, soE. the slip.

The hoses are easily seen through niche wheels

The hoses are easily seen through niche wheels

Flexible hydrological high pressure, though collected by clamp, but it is better to see at least a couple times a week

Flexible hydrological high pressure, though collected by clamp, but it is better to see at least a couple times a week

Pluggable front-wheel drive makes it easy to drive in the ice or leave dirt and is automatically deactivated at speeds over 25 km/h. Everything is simple. If necessary, you can move at all only through the front wheels, but only at the minimum speed. Another advantage of the hydraulic drive is downhill it can be used as an additional retarder or retarder, thereby reducing the load on the braking system.

Hydrostatic drive allows you to transfer torque under load without breaking the flow of power to the front axle to achieve a speed of 25 km/h

Hydrostatic drive allows you to transfer torque under load without breaking the flow of power to the front axle to achieve a speed of 25 km/h

Additional features

In addition, the rear axle of the KAMAZ – Daimler HL6 mikolasko equipped with a lock. Thus, thanks to the 400-horsepower Cummins ISL engine, on the highway KAMAZ-54909-090-B5 dared a quick, relatively high-speed main couple, the relationship 3,909 and regional road tyres 315/80 R22,5. At the same time, he won’t pass and on the icy slope and the loose soil of the construction site, thanks to the KAMAZ H-Drive and “daymlerovskaya” differential lock axle.

The base plate of the fifth wheel of the RV 10 Italian company V. Orlandi S. p.A located at a height of 1.2 m and designed primarily for construction and agricultural trailers

The base plate of the fifth wheel of the RV 10 Italian company V. Orlandi S. p.A located at a height of 1.2 m and designed primarily for construction and agricultural trailers

In the workplace

Being in the cockpit KAMAZ-54909-090-B5, the driver does not get lost in the forest of levers wheel drive transmission. A front wheel connected and disconnected with a delicate panel, located on the front panel, and the differential lock is easily activated with a simple press of a button. As befits a modern tractor, it is equipped with air conditioning and auxiliary heater. That’s just the cab with low roof, one sleeper and a simple spring suspension.After all this testifies to the designers for use of their original solutions in the short arm, but with the ability to work the night shift and a long waiting loading/ unloading.

The front-wheel drive connects and disconnects with the remote control in the cockpit

The front-wheel drive connects and disconnects with the remote control in the cockpit

The front-wheel drive connects and disconnects with the remote control in the cockpit

The front-wheel drive connects and disconnects with the remote control in the cockpit
Низкая кабина K4 c одной полкой в спальном отсеке адресована региональным перевозчикам, которые работая на коротком плече часто сталкиваются в провинции с габаритным ограничением высоты в 3,6–3,8 м

The drivetrain and suspension

Our unusual truck tractor KAMAZ-54909-090-B5, as already mentioned, the Cummins ISL 400 50 fifth environmental class power of 400 HP With it is aggregated mechanical 16 speed manual gearbox ZF 16S1820 TO. Rear axle Daimler HL6 with a hypoid main gear. Front suspension – few-leaf springs, rear – pneumatic, electronic control and load sensor on the rear axle. Front and rear wheel brake mechanisms – disk.

Technical characteristics KAMAZ-54909-090-B5 (M1840)
Full weight, kg 18 600
The distribution of load on axles, kg 7020/ 11 580
Curb weight, kg 7685
Weight of towed trailer, kg 36 240
Full combination weight, kg 44 000
Maximum speed, km/h 90
Overcoming the bias, to train full weight of 44 000 kg, % (deg) 18 (10,2)
Engine:

  • type
  • working volume, cm3
  • power, HP
  • torque, N∙m
50 Cummins ISL 400 Turbo diesel, I-6, Euro 5
8880
400 @ 2100 min-1
1682 at 1300 min-1
Transmission ZF 16S1820 TO, mechanical
Number of forward gears/ reverse 16/ 18
Grip Single dry plate, diameter of the driven disc 430 mm
Brake mechanisms of all wheels Disk
Gear ratio of a transmission 3,909
Suspension Front – few-leaf springs, rear air
Tires 315/80 R22,5
Fuel tank capacity, l 400