Sandvik Mining and Construction Oy

Sandvik Tamrock Oy

Jukka Osara

Juha Piipponen

Jouko Muona

Mikko Kouvo

Jarno Kuittinen

Isto Virtanen

Tommi Säleniemi

Timo Kemppainen

Eero Kumanto

Toni Karvonen

Timo Niemi

Vesa Uitto

Jussi Puura

Eemeli Haverinen

Jaakko Niemi

Erkki Eilo

Jussi Koskelainen

Ari Junnikkala

Pertti Koivunen

Samuli Kouhia

Markus Saarela

Tapani Pöysti

Pekka Laine

Tatu Hautala

Tommi Saeleniemi

A mining vehicle includes electric components, devices or machines operating at alternating voltage and having a specific nominal voltage. Power is fed to the mining vehicle from an alternating current network with a specific voltage level. The mining vehicle further includes a transformer arranged to transform the voltage level of the alternating current network into the nominal voltage. When a voltage higher than the nominal voltage is fed to the transformer, the transformer lowers this higher voltage to the nominal voltage. When a voltage lower than the nominal voltage is fed to the transformer, the transformer raises the voltage to the nominal voltage. The transformer is arranged to feed the electric component, device or machine both when a voltage lower than the nominal voltage is fed to the transformer and when a voltage higher than the nominal voltage is fed to the transformer.

Mining vehicle

The invention relates to a rock drilling rig, a method for controlling the temperature of its drive equipment, and a liquid cooling system. The rock drilling rig includes combustion-engine-free drive equipment, which includes electric components for affecting transfer drive. The rock drilling rig is also provided with a liquid cooling system, to which one or more electric components affecting the transfer drive are connected to be cooled by the system. The cooling of the components is controlled by a control unit according to a strategy set therein. The cooling system may additionally be precooled before the transfer drive.

Rock drilling rig, method for controlling the temperature of its drive equipment, and liquid cooling system

The invention relates to a mining vehicle and method for its energy supply. The mining vehicle has a carriage, driving equipment for moving the carriage, and at least one mining work device. Further, the mining vehicle has at least one electric motor for operating a main function of the mining vehicle, and at least one electric motor for operating an auxiliary function of the mining vehicle. The mining vehicle further has a power-generating auxiliary unit. When necessary, the power-generating auxiliary unit supplies at least part of the power required by the electric motor operating the auxiliary function.

Mining vehicle and method for its energy supply

The invention relates to a rock drilling rig and a method for downhill driving of a rock drilling rig. The rock drilling rig comprises electric drive equipment, the drive motor of which serves as a primary brake in long-term downhill driving. The drive motor thus converts kinetic energy into electric energy, with which an energy storage is charged. To consume surplus electric energy, a hydraulic system or a compressed air system is turned on. A hydraulic pump and a compressor () are driven by an electric motor.

Rock drilling rig and method for downhill drive

The invention relates to a mining vehicle and method for its energy supply. The mining vehicle has a rectifier, DC intermediate circuit, and inverter, through which an alternating current motor is supplied. At least one auxiliary energy source is connected to the DC intermediate circuit. A DC/DC converter is connected between the DC intermediate circuit and the auxiliary energy source for adapting the voltage level of the auxiliary energy source and for connecting the auxiliary energy source to supply energy to the DC intermediate circuit.

A method and equipment for displaying holes to be drilled when drilling holes into rock with a rock-drilling rig having control equipment and a display belonging thereto and measuring means for defining the direction and position of a drill rod, by using a pre-designed drilling plan defined in a three-dimensional coordinate system, in which a starting point (to) and end point (to) is defined for each hole to be drilled. A base plane running through the end point (to) of the hole and parallel to the projection plane is defined for each hole (to), and a projection of the intersection of a hole or its extension created when drilling in accordance with the current location of the drill rod and the defined base plane is displayed with a graphical location symbol on the projection plane.

Method and equipment for displaying drill holes and method for directing drill rod when holes are drilled into rock

A method for using a mining vehicle, arrangement in a mine, rock drilling rig, and mining vehicle. Tasks according to a work cycle are performed at work sites with a mining work device in a mining vehicle. At the work site, the vehicle is connected to an external electrical network. An energy storage of the vehicle is charged during the work cycle defined by a excavation plan, when the vehicle is at a work site. After the work cycle is done, electricity obtained from the energy storage is used in a transfer drive.

Method for using mining vehicle, arrangement in mine, rock drilling rig, and mining vehicle

The invention relates to a control apparatus for controlling a rock-drilling rig performing a multiphase rock-drilling event. The control apparatus is arranged to display a working phase indicator on a display, and rock drilling phase-specific information elements is associated with different working phases. The control apparatus is arranged to specify the phase of the rock-drilling event and to update the working phase indicator to display at least one display information element in accordance with the specified working phase.

User interface for rock drilling rig

A rock drilling apparatus with several actuator units, a user interface control unit, and at least one control means connected to the user interface control unit for controlling the functions of the rock drilling apparatus, and for each actuator unit, a control element connected under the control of the user interface control unit for controlling the operation of the actuator unit in accordance with control signals provided by the user interface control unit, and a method for controlling the rock drilling apparatus. When the control element of an actuator unit of the rock drilling apparatus turns faulty, the control element of another actuator unit is connected to control the first actuator unit when the other actuator unit need not be controlled.

Rock drilling apparatus and method for controlling rock drilling apparatus

In a hydraulic system for mining equipment and a method of adjusting the power of a rock drill machine, at least one mining actuator used for detaching rock is connected to a dedicated separate hydraulic circuit having a special hydraulic pump. The power of the mining actuator is adjusted by changing the hydraulic power generated by the separate hydraulic circuit of the hydraulic pump.

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Tampere, Finland

Jukka Osara