ECG excavators: models, technical characteristics. Excavator

Productive excavators ECG are a career tracked vehicle used in the development and loading of minerals, rocks and mine workings. Also, the machine is used for loading operations at transshipment bases and warehouses, and participates in cyclic production. The units are manufactured taking into account the peculiarities of the climatic regions, they have mechanisms in the form of finished technological blocks, which makes it possible to repair the equipment in an aggregate way.

Device and basic mechanisms

ECG excavators are equipped with a body, swing frame, boom, quarry bucket of various sizes and tracks. In addition, there is a lower frame and a two-level rack. The mining machine is made of high-strength steel, it works under different climatic conditions.

The main elements of the working ladle are the front and rear walls, bottom, side elements and rocker. The body interacts with the rest of the working parts by means of special fingers. The steel handle through the provided connecting parts passes into the boom, which is equipped with pressure blocks and a winch mechanism. On the turntable, not only an arrow is mounted, but also a speaker assembly, an electrical circuit, body parts and racks. The operator's cabin completes the exterior of the car.

Characteristics

Below are the technical plan parameters that have ECG excavators:

• Length / width / height of the bucket - 2450/2190/2560 mm with a mass of 9.9 tons;
• Similar parameters of the swivel platform - 8100/5000/1200 mm with a weight of 18.9 tons;
• The bucket capacity is 5.2 cubic meters;
• Height and radius of digging - 10,3 / 14,5 meters;
• Working weight - 196 tons;
• Dimensions of the lower frame of 10.5 tons - 3000/3000/1680 mm;
• A similar indicator of a crawler frame weighing 5.4 tons - 5500/750/1000 mm.

The driver's cabin weighs 1.1 tons, its length is 2.36 meters, and the width and height - 1.35 and 2.76 meters respectively.

The brake unit of the pressure and swing mechanisms, as well as the winches, functions due to the compressed air flow from the compressor. The undercarriage is equipped with a hydraulic system that corrects the operation of the clutch switching of tracks and running brakes.

Power point

The mining excavator ECG is equipped with pressure, lift, turn and stroke mechanisms. The bucket is opened by means of a power supply from DC motors. Other auxiliary elements are powered by variable-type motors. The main nodes receive energy through converting generators and step-down transformers.

The most important detail that ensures the operation of the equipment is a generator motor with thyristor excitation. Its main parameters are:

• Transformer ratings - 160 kVA;
• The nominal capacity of the network unit is 800 kW, or one thousand horsepower.

The electric power unit is located at the rear of the body.

Modifications of the ECG 5A excavator

These powerful machines are operated in the mining and processing industries. They greatly facilitate the work of metallurgical enterprises, coal mining and construction projects. Excavators have a high power rating, dynamic control and high maintainability.

In addition to the ECG 5A model, there are several similar variations, differing by insignificant indicators:

1. Modification 5B has a power plant with a capacity of two hundred and fifty kilowatts. It is able to work on the breed without preliminary preparation, it is equipped with a specific bucket with hammers instead of traditional teeth.
2. Variant 5D - a tracked crawler excavator, the parameters of which are similar to the previous model. It differs only in the presence of a combined diesel engine and an electric motor. He is able to independently perform loading in dump trucks.
3. 5U - powerful maneuvering equipment, capable of passing trenches, processing ledges, perform loading operations. The excavator is equipped with a comfortable working cabin with excellent overview and informative management.
4. Model ECG-4,6 A. The first machines of this category were produced at Uralmash. They are still successfully functioning, equipped with a bucket of 5.2 cubic meters and a motor with a power of 250 kW.

Excavator ECG-10

Among the design features of the technique of this series, the following points should be highlighted:

• Bucket lift has automatic stabilization of effort;
• The equipment is equipped with a winch with a lifting boom, which facilitates the repair and maintenance of the unit;
• Brake system of the main units - shoe type with pneumatics;
• Bucket welded-cast construction, equipped with a wedge-shaped teeth;
• The bottom of a freely falling element excludes dynamic contact with the handle;
• The rack pressure system includes an all-welded boom and a handle with a pair of beams;
• This design improves the handling of hard rock;
• Special ventilation devices create high air pressure in the body;
• The main parts of the machine are made of alloy steel.

Reduce the cost of prevention and maintenance allows an effective system of automatic lubrication.

Benefits

ECG excavators are equipped with a two-track traveling trolley with a separate drive for each track. This makes it possible to obtain a low-resistance technique, which increases the maintainability of the unit and the adjustment of the tension of the tracks. Embedded hydraulic cylinders and forced ventilation contribute to additional dynamics during the operation of the unit. The main mechanisms of the excavator are equipped with a personal adjustable electric drive.

The cab of the device has comfortable equipment. There is noise and dust insulation in the form of special partitions. Also, the workplace is equipped with air conditioning, has a decent internal area and a heating system. The stationary control panel allows you to quickly adjust the operator's seat. The peculiarities of this technology include the absence of a gearbox, as a result of which the movement is carried out in a single high-speed mode.

Series 8I

The ECG excavator, whose technical characteristics will be considered further, is equipped with an electric motor with a capacity of five hundred and twenty kilowatts. The mass of this huge machinery is 373 tons. The machine is capable of climbing over ten degrees, keeping all operating parameters.

The upgraded version of this series is an excavator under the ECG-8-US index. It is equipped with a longer boom, handles the ledges and at high altitude, and is also adapted for loading products onto dump trucks and railway cars. The machine has a bucket of 10 cubic meters. M, can lift loads of up to 110 tons. The unit is distinguished by its reliability, stability and good maneuverability.

Finally

Types of ECG excavators, which were briefly considered in our article, are in demand throughout the post-Soviet space and abroad. This is due to their adaptability to different climatic regions, high productivity and good technical parameters. Especially in demand such machines for various types of quarry workings in difficult terrains and regions with a harsh climate. The presence of a set of developed modifications allows you to select a device that will optimally match the features of the work performed and the customer's requests.