Grinding tool for grinding buttons of a rock drill bit, a grinding spindle and method for mounting the grinding cup on a grinding spindle

A grinding tool for grinding buttons of a rock drill bit includes a spindle having a longitudinal axis of rotation, and a grinding cup mounted on the spindle by a tongue-and-socket connection. A fastener in the form of a coil spring secures the grinding cup to the spindle. The grinding cup can be inserted into the inside of, or around the exterior of, the coil spring. When the spindle is rotated in a working direction, the spring tightens against the grinding cup. To install or remove the grinding cup, the grinding cup is rotated relative to the spindle in a direction corresponding to the working direction, whereby engagement between the grinding cup and the coil spring becomes loosened.

Grinding tool for grinding buttons of a rock drill bit, a grinding cup, a grinding spindle and method for mounting the grinding cup on a grinding spindle

A grinding tool for grinding buttons of a rock drill bit includes a spindle having a longitudinal axis of rotation, and a grinding cup mounted on the spindle by a tongue-and-socket connection. A fastener in the form of a coil spring secures the grinding cup to the spindle. The grinding cup can be inserted into the inside of, or around the exterior of, the coil spring. When the spindle is rotated in a working direction, the spring tightens against the grinding cup. To install or remove the grinding cup, the grinding cup is rotated relative to the spindle in a direction corresponding to the working direction, whereby engagement between the grinding cup and the coil spring becomes loosened.

RAILWAY TRANSPORTATION

A grinding tool for grinding buttons of a rock drill bit, a grinding cup, a grinding spindle and a method for mounting the grinding cup on a grinding spindle

The present invention relates to a grinding tool for grinding buttons of a rock drill bit, a grinding cup, a grinding spindle and a method to mount the grinding cup on a grinding spindle. The grinding tool (10) comprises a rotatable grinding spindle (11), a grinding cup (15) having flush channels and a spring (14) holding them together. The grinding spindle (11) and the grinding cup comprises co-operative recess (27) and projection (16) means. The grinding tool (10) has a working direction (R). One end (36) ot the spring (14) is substantially firmly connected in the axial direction to the grinding spindle (11). The spring is provided to allow rotation of the grinding cup (15) relative to the grinding spindle (11) only in the working direction (R) of the grinding tool (10). The grinding cup (15) comprises a wholly rotation symmetrical, cylindrical surface (37) as the only means for driving.

Verfahren zur kühlmediumversorgung zu einer topfschleifscheibe und topfschleifscheibe zu dessen durchführung

Metodo para proporcionar un medio de ventilacion a una copa de molienda

EL METODO PERMITE LA FABRICACION DE BOTONES PARA UNA BROCA DE PERFORAR ROCA; LA COPA DE MOLIENDA INCLUYE UN ARBOL QUE SE MONTA ROTATIVAMENTE EN UNA MAQUINA MOLEDORA, AMOLADORA, PULIMENTADORA, Y UNA PARTE DE DESGASTE QUE TIENE UN REBAJO, EL CUAL REALIZA LA FABRICACION DE BOTONES; CARACTERIZANDOSE EN QUE EL MEDIO DE VENTILACION, SE PROPORCIONA A UNA PARTE DE LA COPA DE MOLIENDA, QUE ESTA LOCALIZADA AXIALMENTE ENTRE EL REBAJO Y EL EXTREMO LIBRE DEL ARBOL

Slipekopp for sliping av innsatser i en bergborkrone, samt slitedel for slik slipekopp

Method for supplying cooling medium to a grinding cup and grinding cup to carry out the method

Förfarande för tillförsel av kylmedel till en slipkopp samt slipkopp för att utföra förfarandet

Verfahren zur kühlmediumversorgung zu einer topfschleifscheibe und topfschleifscheibe zu dessen durchführung

A fixture and a grinding machine for grinding buttons of a rock drill bit

The present invention relates to a fixture and a grinding machine for grinding buttons of a rock drill bit. The fixture (18) comprises means (20, 25, 26) for holding the drill bit in a horizontal plane in a correct position relative to a grinding cup (51). The fixture comprises a linkage (24) consisting of at least two arms (25, 26). The arms (25, 26) are mutually joined by a first vertical hinge (27) wherein a second arm (26) is movably secured in a machine stand (23). A locking means (45) is provided to lock two arms (25, 26) simultaneously. During use operative peripheries of the arms to be locked are held at a substantially constant distance from each other.

Haltevorrichtung fuer ein werkzeug mit motorischem drehantrieb

Hydraulisk borrmaskin

Aufhängevorrichtung für ein Werkzeug mit motorischem Drehantrieb