Design features 1221 MTZ
Today, the Minsk Tractor Plant mass-produces a large line of models of self-propelled vehicles for agricultural, transport, road construction and earthmoving purposes. Among them, the most common and popular is 1221 tractors - a universal row-crop brand of wheeled vehicles. Also referred to as Belarus-1221 or 1221 MTZ.
The future consumer will be satisfied with the wide scope of application of the MTZ tractor in the field of crop production, animal husbandry, irrigated agriculture and land reclamation (plowing, plowing, etc.), municipal and forestry, industry, road construction. It is noteworthy that the prototype of the model is used in the Farming Simulator 2015 game under the working title MTZ 1221 Sarex. A detailed description of the vehicle set out in the article will acquaint you with the technical characteristics of MTZ 1221, its advantages and disadvantages.
1 Design features of the machine
Distinctive MTZ 1221 technical features are:
- Designed with the latest technology in the cab, the seat is comfortable and conveniently located with controls including switches and levers. The safety of the driver is ensured by the rigid support beams.
- The rear axle is equipped with a rare wheel editor.
- The control system can be switched to reverse mode thanks to one movement.
- The monoblock design and the autonomous cylinder are taken as the basis for the operation of hydraulics.
- Maximum ease of access to all components and assemblies.
- The consumption of fuel, oils and other technical fluids is economical.
1.2 Device, description of technical characteristics
The leading elements of the device include the motor, transmission, chassis and electrical equipment, starter, cab, steering, mounted plow. MTZ 1221 engine has 6 cylinders, which gives a good power of 130 kW / hp. The diesel engine is equipped with a turbocharger. The undercarriage is equipped with disc brake elements that act primarily on the rear wheels, then on the front. Ballast weights weighing 500 kg or more are used.
The transmission is equipped with a clutch reinforcement. Due to the gearboxes included in the gearbox, the reliability of the entire structure is given. The electrical equipment is an MTZ 1221 generator with a capacity of 1000 W. The cabin is metal, made of insulating materials, there is an air conditioner and a heater, an emergency exit is provided, and protection from the sun.
Technical characteristics of the MTZ tractor:
The speed exceeds 33 km / h. The turn reaches 5.3 m. Equipped with a 260.2 Turbo engine. Engine displacement over 6 liters. It is equipped with a power supply system, exhaust gases, while the cooling system functions as a result of a water device (regulating radiator). The cooling mechanism is made of a closed type with forced circulation of liquid. Provided by thermostat temperature control.
An ordinary internal combustion engine meets the requirements of environmental friendliness and safety. Sufficiently spare in terms of torque. The gap between the ends of the intake valve rods and the rocker arms of a cold diesel engine is 0.30 mm, between the ends of the exhaust valves is 0.45 mm.
The transmission stands out for its modern design solution:
- rigid body, reinforced clutch and clutch disc (2);
- the axle connecting the rear wheels with wheel reduction gears;
- double-sided rear shaft with independent / synchronous drive;
- Wet and dry brakes.
166 liters of fuel are consumed per hour, with a tank capacity of 160 liters. The crankshaft rotates at 2100 rpm. The pressure in the tires is selected depending on their ply and size, the speed of the vehicle. Under normal conditions, keep to the minimum values. With a ply level of "6" (tire dimensions - 9.0-20), an increase in pressure by 25% is allowed.
1.3 Plowing with the MTZ 1221 tractor (video)
2 Vehicle modifications
Hydraulic lift MTZ 1221 has several variations. This is an MTZ 1221.2 tractor with an S diesel engine, it is distinguished by an increased degree of tractive power. The maximum permissible load weight is 4.5 tons. Hydraulic mechanism with a pump of 55 l / min. Aggregate-separate execution. The all-wheel drive tractor MTZ 1221 2 has a gearbox creeper.
In model 1221 3. on the basis of S2-engine, hydraulics and transmission are improved, lifting capacity. It is used in horticultural and livestock farms. This MTZ tractor is suitable for a plow with a skimmer PLN 3-35, also PLN 3-30 with deep soil incorporation.
MTZ 1221 4 is a tractor with good cross-country ability with high ground clearance. Aggregated plow - PLN 5-35 U (5 bodies, universal hitch MTZ 1221). Designed for operation in difficult conditions, logging.
MTZ 1221 tropic is a brand of an agricultural vehicle with an additional fuel tank. It is equipped with a tropical radiator.