摘要:
The rock drilling rig comprises a first control unit (8) arranged on a carrier (1) and a second control unit (9) arranged to a rock drilling apparatus (4). The first control unit (8) and the second control unit (9) communicate with each other by means of a first data communications link (10). The rock drilling apparatus (4) has one or more sensors (11, 12, 15), the measuring results of which are processed in the second control unit (9) and only then transmitted to the first control unit (8) that controls actuators regulating the operation of the rock drilling apparatus (4). Correspondingly, the rock breaking machine, such as a breaking hammer, comprises one or more sensors (11, 12, 15) and a control unit (9).
摘要:
A method for automatically guiding a mining machine (14) provided with a route determined as successive route determined as successive route points in the mine. In the method, data relating to the successive points are used for determining additional route between the successive route points for guiding the mining machine (14).
摘要:
The invention relates to a method for controlling at least two hydraulic actuators, to a monitoring valve and a rock drilling apparatus. The monitoring valve (10) is connected to the input channel of a first actuator through a sensing channel (9) and controls a load-sense circuit (6′) of a second actuator. The pressure of the load-sense circuit (6′) is set by a force of a spring element (12) and biased by a control element (42) of the monitoring valve with differential pressure sensing.
摘要:
A method and an apparatus for determining the position of a mining machine as its wheels skid with respect to the underlying surface. In the method, at least one detector detecting the operation of transmission detects skidding of at least one wheel with respect to the underlying surface, whereupon determination of the position by means of the rotation of the wheels and the direction of travel is interrupted. The apparatus includes at least one detector for detecting the operation of the transmission, the detector detecting the skidding of at least one wheel with respect to the underlying surface.
摘要:
A method for controlling the operating cycle of an impact device, and an impact device. Percussion piston position is measured using a sensor (11) from which the measurement data is transmitted to a control unit (12) of the impact device, which in turn controls an electrically driven control valve (10).
摘要:
An impact device for a rock drill or the like, comprising means for delivering a stroke, or a stress pulse, at a tool connected to the impact device. The means for delivering a stress pulse comprise an impact element (2) supported to a frame (1a) of the impact device, and means for subjecting the impact element to stress and correspondingly for releasing the impact element (2) suddenly from stress, whereupon the stress energy is discharged in the form of a stress pulse directed at the tool (3) that is directly or indirectly connected to the impact element.
摘要:
A method for controlling the operating cycle of an impact device, and an impact device. Percussion piston position is measured using a sensor (11) from which the measurement data is transmitted to a control unit (12) of the impact device, which in turn controls an electrically driven control valve (10).
摘要:
A method for loading a dumper with broken rock or the like and an apparatus for implementing the method. In the method, a loading area is defined for the dumper. The dumper is stopped at the loading area at a predefined position for loading. An emptying area is correspondingly defined in advance for a loader for transporting the material in its bucket onto the dumper box. The apparatus includes a controller for controlling the dumper at least during loading, and the controller includes means for stopping the dumper for loading at the predefined position so that the material transported by the loader can be emptied onto the dumper box in a predefined location in the longitudinal direction.
摘要:
A mine vehicle and a method of preventing a mine vehicle from colliding. The mine vehicle (1) includes at least one scanner (13, 14) to scan the environment in front of the vehicle. On the basis of the scanning, an obstacle-free route is determined whose outermost points in a sideward direction are stored as memory points (21). At least one sideward safe area (15b) has been predetermined around the vehicle (1). A control system checks that no memory point (21) resides within the safe area (15b).