Atlas Copco Rock Drills Ab

Epiroc Rock Drills Aktiebolag

Other

Jan Olsson

Sven-Olov Nyström

Lars Erik Samuelsson

René Deutsch

Martin Ekefalk

Hans Gustavsson

Viktor Bergqvist

Lennart Gürlet Häggström

Björn Anders Larsson

Johan Engblom

Björn A Larsson

Sven-Olov NYSTRÖM

A method for ensuring the quality of a multi-component mixture in a system for rock reinforcement is described herein. The system comprises a first and a second channel for a respective first and second component intended for injection in a rock hole. The respective channel comprises a pump and a container intended for the respective component. The method comprises the steps of pumping of the respective component from the respective container through the respective channel and continuously comparing the flow of the first component in the first channel with the flow of the second component in the second channel. The method further comprises the step of controlling the pumps individually, based on the comparison of the flows, in such a way that a deviation from a pre-defined volume ratio between the first component and the second component in the mixture is below a pre-defined first threshold.

Method and system for ensuring the quality of a multi-component mixture for rock reinforcement

A rig adapted for rock bolting comprising a feeding magazine is provided. The feeding magazine comprises a holding structure for bolts and is arranged in conjunction with a rock reinforcement unit. The rig further comprises a feeding device that is arranged to provide the rock reinforcement unit with bolts from the feeding magazine. The rig further comprises a loading magazine comprising a holding structure for bolts, as well as a, relative to the feeding magazine and the loading magazine, moveable picking device arranged to move bolts that are located in the loading magazine such that they are accessible to the feeding device.

Rock bolting rig and method at rock bolting rig

The invention relates to a method pertaining to a bolting configuration () where a drilling unit and a bolting unit are arranged to be supported by a bottom carriage () via a respective top carriage (), wherein said bottom carriage () is arranged to be supported by a feed beam (), relative to which said bottom carriage () is displaceable, wherein said top carriages () are arranged to alternately be supported by said bottom carriage () to alternately be brought into operative engagement and hereby alternately be locked relative to said bottom carriage (). The method comprises the step of: &#x2014;said locking being performed by a locking configuration () comprising at least one hydraulically, pneumatically or electrically displaceably arranged locking pin () adapted to be inserted into a locking hole () during locking, wherein said locking pin () is supported by said one top carriage () and said locking hole () is arranged in said bottom carriage (), or vice versa. The invention also relates to a computer program product comprising program code (P) for a computer () to implement a method according to the invention. The invention also relates to a bolting configuration and a vehicle equipped with the bolting configuration.

Method pertaining to a rock bolting configuration, a rock bolting configuration, a vehicle comprising a rock bolting configuration and a computer program product

The present invention relates to a method for installation of a rock bolt () in a first drill hole by means of a rock bolting rig (), wherein said rock bolting rig () comprises a carrier (), a boom unit () fastened to said carrier (), and a bolt unit () fastened to said boom unit () via first joint means (), wherein said bolt unit () comprises a feeder unit () including means for displaceable carrying of a drilling machine (), wherein said bolt unit comprises a first (A) end and holding means () for holding said rock bolt (). The method comprises: &#x2014;by means of said first joint means () maneuver said first end (A) of said bolt unit () to a first position for loading of a bolt, &#x2014;when said bolt unit () has been maneuvered to said first position for loading of a bolt, providing a rock bolt () to said bolt unit (), for being held by means of said holding means (), and &#x2014;when said bolt unit () has been loaded with said rock bolt (), maneuver said bolt unit () to a position for installation of said rock bolt () and loaded with said rock bolt () drilling said first hole and installing said rock bolt () in said first hole. The invention also relates to a rock bolting rig.

Method and rock bolting rig for installation of a rock bolt

The invention relates to a method pertaining to a drill support device () comprising two relatively movable drill support arms (), wherein a support space is formed between opposite arm sections (), in which a drill steel () is adapted to be guided and wherein said space is opened and closed by relative displacement of said sections (). The method includes the step of: &#x2014;fixing (S) at least one of said drill support arms () by sealingly clamping between, on one side, a support element () and, on the other side, a housing section (), which accommodates a hydraulic cylinder () with a hydraulic piston (), on which hydraulic cylinder (), said drill support arm () is revolvingly mounted, wherein said drill support arm () is clamped by means of a screw means () by which the housing section () is displaceable. The invention also relates to a computer program product comprising program code (P) for a computer () for implementing a method according to the invention. The invention also relates to a drill support device () and a vehicle () equipped with the drill support device ().

Method for a drill support arrangement, drill support arrangement, vehicle comprising a drill support arrangement and computer program product

The invention comprises an injection device (), for injecting fixing material in a drill hole () during rock bolting, comprising a hose system () and a feed unit (). The hose system () comprises an injection pipe (), the injection device further comprises a positioning means () adapted to adjust the position of the injection pipe () in relation to the drill hole () and the feed unit () comprises means () adapted to drive the hose system () such that the injection pipe () enters the drill hole () for supplying fixing material into the hole () during operation.

Injecting device, drill rig and method of rock bolting

Method and apparatus for molding plastic wheels

It is an object of the invention to provide a bicycle, which starting from a kit of components is very simple to mount, and which in mounted condition in spite of a low price produces a stable bicycle, which is resistant to rough handling and negligence, and which has the requirements for good functioning also after a long time of use. The assembly of bicycle components according to the invention comprises a frame member (1). Furthermore, the assembly comprises a front fork component (2), which is provided with a shank portion (18), which forms axially acting thrust stops (17, 19a) engaging the upper and lower ends respectively of the steering hub, one of the thrust stops being formed by outwards pointing spring pawls (19) adapted to directly or indirectly cam into the corresponding end portion of the steering hub by snap action when the shank portion is being inserted into the steering hub.

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Orebro, Sweden

Jan Olsson