Roadheader EBZ-220 used for mining of coal, mixed faces, as well as used for tunneling. When tunneling and rock cutting coal combine fortress used to no more than 75 MPa. These conditions are best for cutting, loading and transporting rocks. Layout combine compact, low center of gravity, easy to manage, it works perfectly for an uprising, destroying confidence strong breed. The cutting portion has a telescopic body, external and internal irrigation, used for dust suppression. Reducer working body and the motor are combined and highly integrated. Maternal body assembly line is located in the center, is a straight line and a large dump height. The machine has an LCD display with a demonstration of the functions in dynamic, easy to manage iobsluzhivanii. Standard electrical equipment higher than the national standards. The hydraulic system has a function to maintain a constant pressure in the hydraulic system. The contour lines of the pressure in the cutting and loading circuit is sensitive overload protection.
The compact size and user-friendly control unit creates a significant safety at work. The processor used in several new patent technology. The machine is widely used as, in deep mines at large angles of incidence of soft coal seams, in the sinking of mixed faces and in tunneling for railways, highways and reservoirs. Most Removable cross-sectional area from one position - 25.4 m², a longitudinal tilt angle ± 18º. The optimum height for the job - 2,5-4.0 m.
Roadheader EBZ-220 is a crawler designed for use in medium and heavy-duty, having the executive body of the election type. Harvester is used for sinking mines and tunnels. Combine a electrohydraulic drive system and a modular design for easy transportation, installation / removal and maintenance. Mountain mass bounces rotating cutting body is located on the harvester boom. Cutting body driven by a motor with water cooling via a two-speed epicyclic gearboxes and. Manipulation of the boom is done vertically / horizontally and with the help of hydraulic cylinders arc and moves freely in allowing selectively run in the bottom of any production profile.
Dust suppression system is located on the boom and a set of nozzles irrigate the treated area under irrigation and clove through the nozzles on the executive board. If necessary, combine harvester can be fitted with high-pressure irrigation system. Standard executive body of the axial type motor has a capacity of 220/132 kW. Repulsed rock mass is going on the feeder as it moves to the bottom of the combine. The feeder can be raised and lowered as necessary to ensure proper clearance at the stretch of the combine or work rebellion / fall produce. The feeder is equipped with a shovel stars that move the rock mass to the scraper conveyor, mounted in the center of the combine. Stars are hydraulically driven via gears mounted under the feeder.
The scraper conveyor drive is equipped with two hydraulic motors on the collapse of the conveyor and docked with the feeder is mounted on the front and rear hinge arms combine. This arrangement allows the conveyor to move with the feeder when lowering / lifting of the latter. The scraper conveyor transports the material is chipped into the tail of the car, where the shipment takes place in the mine transport systems. The movement of the combine by means of trucks. Truckee driven by a hydraulic motor through a gearbox. Each motor has a built-in trucking braking system, which is triggered when disconnecting the electrical or hydraulic systems. The brake system is also activated if the control lever Tracians in neutral. Truckee have a low ground pressure, allowing you to work in a very soft soil.
Behind the machines are auxiliary jacks for lifting the combine. These jacks are used to stabilize the harvester at work as well as the passage of the inclined workings. In addition, jacks may be used in servicing processor. The hydraulic system is equipped with oil station, consisting of a piston pump, resulting in the operation of the motor with air cooling. The hydraulic system consists of a number of high-pressure circuits and control circuits and control. All hose connections and fittings are equipped with the BRC, which makes all the hydraulic circuits are easy to service.
Cooling hydraulic and engine cutting unit is carried out using the water system of the machine. Water system directs the flow of coolant through the cooling oil tank and through the engine water jacket cutter body. Once the water has passed through all the single phase cooling system, it may be applied to the dust suppression system or removed through the drain line. Water system of the machine is equipped with pressure sensors and flow of water.
The sensors are connected to an electrical control circuit, which allows the engine to run the executive body only if the required level of flow / pressure water, providing cooling and irrigation.
Roadheader EBZ-220 for use in medium and heavy-duty, in general, is described in the technical specifications and of collected of the following:
Loading systems and conveyors:
EQUIPMENT FOR GREASE:
|Machine Length||10400 mm|
|Machine Height||1720 mm|
|Machine Width||3200 mm|
|Total Weight (without Reversed Loader)||63,5 t|
|Ground Clearance||190 mm|
|Max. Non-removable Part Dimensions||1х1,4 х1,4 m|
|Max. Cutting Height||4500 mm|
|Max. Cutting Width||5600 mm|
|Max. Dinting Depth||180 mm|
|Cutting Motor Power||220/132 кW|
|Rotating Speed of Cutting Head||23 и 46 r/min|
|Economic Cutting Hardness||≤ 85 МPа|
|Conveyor Type||Fixed Double Circuit|
|Rated Chain Speed of Scraper||55 m/min|
|Loading and Conveying System|
|Loading Mode||Chain Wheel|
|Driving Mode of the Star Wheel of Shovel Board||Hydraulic|
|Loading Chain Wheel Type||Four-axis|
|Gear Rotating Speed||33 r/min|
|Conveying Capacity||4 m³/min|
|Travelling Speed||0 - 6,0 m/min|
|Track Height||420 mm|
|Ground Specific Pressure||0,16МPа|
|Motor of Oil Station||90 кW|
|System Pressure||18 МPа|
|Oil Tank Capacity||600 l|
|Dust Suppression||Interal & External Spraying|
|Spray Water Pressure||3 МPа|
|Supply Voltage||1140В 50 Hz|
|Oil Pump Motor Power||90 кW|
|Cutting Motor Power||220/132 кW|
|Total Power||310/222 кW|