Self- propelled transfer machine is intended for receiving of ore material from the shuttle car and the subsequent batch overload of this material into the mine ore chute or on the conveyor when carrying out stopping and pre-production mining works in underground workings of ore mines, including mines which are dangerous because of gas (methane) and (or) dust contents.
|1||Receiving performance, tons/min, not less than||30|
|2||Output performance (regulable), tons/min||10…15|
|3||Bunker capacity, m3, not less than||26|
|4||Conveyor type||scraping, double-chain|
|5||Conveyor width, mm||1400|
|6||Chain type||chain 24×86, grade 2(C) DIN 22252|
|7||Conveyor scraper chain speed (regulable), m/s||0…0,8|
|8||Height of the receiving portion of the conveyor (from the ground to top belt), in operating condition, mm, not more than||475|
|9||Unloading height of conveyor (regulable), mm||880…2450|
|10||Maximum velocity of machine, km/h||2,5|
|11||Travel distance (depending on length of supply cable), m||до 200|
|12||Type of chassis||pneumatic-tyred|
|14||Ground clearance, mm||not less tan 330|
|15||Climbing angle, degree, not less than||12|
|16||Turning radius on overall dimensions, m, not more than||11,5|
|17||Main circuit voltage, V||660/1400 ± 10%|
|18||Nominal electric motor rating, kW||110|
|19||Type of supply cable||КГЭШ 3х16+1х10+3х2,5|
|20||Execution of electrical equipment||РВ Exd[ia]I GOST Р 51330|
|21||Overall dimensions of the machine in transporting position, m, not more than
|22||Carrying load of the machine in operating condition, tons, not less than||30|
|23||Weight of the machine, tons, not more than||25|
Self- propelled transfer machine consists of 4 main parts:
Bunker of 26 m3 capacity or 35 tons of ore (volume weight 1,35 t/m3) consists of three main portions: receiver, collection and unloading.
Scraping conveyor – double-chain, straight, width 1, 4 m, with pull hydraulic drives for each sprocket. The conveyor has a straight belt and a pull drive that is more reliable design than the deflecting conveyor. The strengthened chain and high-strength scrapers are used.
Carriage is made as a welded frame pivotally connected to a bunker part. Raising of a bunker part relative to the frame and the adjustment of height of unloading is performed by means of two hydraulic cylinders of rise.
Hydraulic system represents a volume hydraulic drive consisting of the pumping unit and drive hydraulic motors, hydraulic cylinders and distribution and safety equipment.
The hydraulic drive allows to set any speed in the given range, and also has the modular design facilitating repair and service.
The main operation of the machine in the automatic mode means a work WITHOUT OPERATOR!
The operator of the machine drives up to the place of dislocation, from the control panel he makes activation of the machine and sets modes of receive and unloading. Then he switches over to the conveyor mode and selects the automatic.
When approaching the car to the machine the electric motor and the conveyor turn on. An unloading of the car is taking place to average output about 30 tons a minute. At the expense of the bigger width of the conveyor (1400 mm against 1270 mm) and differences of speeds, ore does not collect in a receiving part, allowing the driver of the car to increase the unloading speed, using the maximum opportunities of the car.
Owing to the adjusted throughput performance of a slide gate, the ore begins to collect from this gate up and towards unloading at an angle of natural levee. Considering the bunker capacity, and also the fact that a part of the ore (~ 1/3) by the end of unloading of the car will be already unloaded, the machine “will process” non-stop unloading of the car with a capacity of not less than 35 tons even at the maximum height of unloading (up to 2,2 m).
Having unloaded the car, the driver leaves, and the machine having completely unloaded the ore, automatically stops (only the electric motor is switched off, the lighting remains), thereby the energy saving feature is observed.
- reduction of time of unloading of the shuttle car of type ВС-30 and, as a result, decrease in time of a cycle of delivery of ore from the combine and idle time of a combine complex;
- decrease in probability of a gumming of the ore chute due to the dosed unloading