A method for dust suppression for an autonomous drilling machine operating at a work site. The method comprises of generating by a perception module perception data of the work site, receiving at least one machine parameter from a machine sensor of the autonomous drilling machine, predicting by a controller a dust level for the autonomous drilling machine at the work site based on one of the perception data or the machine parameter, determining a fluid discharge rate for a fluid discharge unit based on the predicted dust level, and adjusting the fluid discharge rate based on dust level detected during the drilling operation.

A drilling device is brought into an idling state by maintaining the engine speed at a first speed while waiting for a drilling operation. The engine speed is increased to a second speed that is higher than the first speed when any one of a rotation operation, a feeding operation, a rod exchange operation, or a boom operation is performed for a rock drill. The engine speed is increased to a third speed that is higher than the second speed when a striking operation or a flushing operation is performed, and the engine speed is decreased from the third speed to the first speed after the striking operation and the flushing operation finish. For example, the first speed is a low speed, the second speed is a medium speed, and the third speed is a high speed.

A drilling device is brought into an idling state by maintaining the engine speed at a first speed while waiting for a drilling operation. The engine speed is increased to a second speed that is higher than the first speed when any one of a rotation operation, a feeding operation, a rod exchange operation, or a boom operation is performed for a rock drill. The engine speed is increased to a third speed that is higher than the second speed when a striking operation or a flushing operation is performed, and the engine speed is decreased from the third speed to the first speed after the striking operation and the flushing operation finish. For example, the first speed is a low speed, the second speed is a medium speed, and the third speed is a high speed.

A homogenizer for homogenizing flow, a rock drilling rig, and a method for taking samples is provided. The homogenizer is mountable to a dust collecting system of the rock drilling rig and is arranged for effecting on the flow, which contains air and drilling cuttings. The homogenizer includes a channel part through which the flow is directed and at least one air jet for directing air blows to the flow for generating disturbance in the flow and to thereby homogenize particle distribution of the drilling cuttings in the flow.

A homogenizer for homogenizing flow, a rock drilling rig, and a method for taking samples is provided. The homogenizer is mountable to a dust collecting system of the rock drilling rig and is arranged for effecting on the flow, which contains air and drilling cuttings. The homogenizer includes a channel part through which the flow is directed and at least one air jet for directing air blows to the flow for generating disturbance in the flow and to thereby homogenize particle distribution of the drilling cuttings in the flow.

A high pressure injection flushing head includes a flushing body comprising an upper body portion, and a lower body portion coupled to the upper body portion. The upper body portion and the lower body portion cooperate to define a bore. A shaft is rotatably disposed at least partially within the bore. A plurality of rotary elements are configured to facilitate rotational movement of the shaft relative to the flushing body. The flushing body comprises a lubrication system having a plurality of grease nipples, and a network of pathways in fluid communication with the grease nipples that are configured to deliver grease to the rotary bearings. The flushing head couples to an adapter via a flanged connection so that the flushing head can be adapted for use with a plurality of drill rod types.

A high pressure injection flushing head includes a flushing body comprising an upper body portion, and a lower body portion coupled to the upper body portion. The upper body portion and the lower body portion cooperate to define a bore. A shaft is rotatably disposed at least partially within the bore. A plurality of rotary elements are configured to facilitate rotational movement of the shaft relative to the flushing body. The flushing body comprises a lubrication system having a plurality of grease nipples, and a network of pathways in fluid communication with the grease nipples that are configured to deliver grease to the rotary bearings. The flushing head couples to an adapter via a flanged connection so that the flushing head can be adapted for use with a plurality of drill rod types.

A drilling device includes a hydraulic drilling unit, a multi-way connector, a compressed air conduit, a plurality of air compressor units, an air duct, a dust removal unit and an operation bench. The hydraulic drilling unit is capable of moving among a plurality of drilling platforms and among a plurality of hole positions on the plurality of drilling platforms and performing a drilling operation. The plurality of air compressor units are disposed in a fixing and mounting region that is between the plurality of drilling platforms. The dust removal unit includes a dust collection cover and a dust remover, where the dust collection cover is configured to be located at any one of the plurality of hole positions, the dust remover is disposed in the fixing and mounting region, and the dust collection cover and the dust remover are connected through the air duct.

A drilling device includes a hydraulic drilling unit, a multi-way connector, a compressed air conduit, a plurality of air compressor units, an air duct, a dust removal unit and an operation bench. The hydraulic drilling unit is capable of moving among a plurality of drilling platforms and among a plurality of hole positions on the plurality of drilling platforms and performing a drilling operation. The plurality of air compressor units are disposed in a fixing and mounting region that is between the plurality of drilling platforms. The dust removal unit includes a dust collection cover and a dust remover, where the dust collection cover is configured to be located at any one of the plurality of hole positions, the dust remover is disposed in the fixing and mounting region, and the dust collection cover and the dust remover are connected through the air duct.

A support includes a support element for supporting a drilling tool used in rock drilling. The support element is inside a suction housing of a rock drilling unit at least during drilling. The support is located at a front end portion of a feed beam and is used to support the tool especially during the collaring phase of the drilling. A method of collaring is disclosed wherein the drilling tool is supported by the support.