B - Operations – Transporting – 24 – B
Patent
B - Operations, Transporting
24
B
B24B 45/00 (2006.01) B24B 3/24 (2006.01) B24B 3/33 (2006.01) B24D 7/18 (2006.01)
Patent
CA 2467417
The present invention provides a grinding member (2) or connection to a drive connection member (3) to form a grinding cup for grinding the hard metal inserts or working tips of drill bits (percussive or rotary), tunnel boring machine cutters (TBM) and raised bore machine cutters (RBM) to restore them to substantially their original profile, said grinding member having: a. a grinding section (4) having top (8) and bottom surfaces (10), a centrally disposed convex recess (7) formed in the bottom surface of said grinding section having the desired profile to be ground; b. a support section (9) adjacent the top surface (8) of said grinding section; c. means (13) to connect the grinding member to the drive connection member wherein the grinding member can be disconnected from the drive connection member when it becomes worn.
La présente invention concerne un élément de meulage (2) destiné à être couplé à un élément de liaison de commande (3) pour former une coupelle de meulage (1) servant à meuler les inserts ou pointes en métal dur d'outils de forage (à percussion ou rotatifs) et d'outils de coupe de tunneliers ou de foreuses en surface de façon à leur redonner sensiblement leur profil d'origine. Cet élément de meulage (2) comprend : a) une section de meulage (4) comportant une surface supérieure (8) et une surface inférieure (10), ainsi qu'un évidement convexe central (7) ménagé dans la surface inférieure de cette section de meulage et présentant le profil de meulage voulu, b) une section support (9) adjacente à la surface supérieure (8) de la section de meulage et c) un moyen (13) pour coupler l'élément de meulage à l'élément de liaison de commande, l'élément de meulage pouvant être désaccouplé dudit élément de liaison de commande en cas d'usure.
Sjolander Bjorn
Sjolander Bo Thomas
Sjolander Robert
Blaney Mcmurtry Llp
C.m.e. Blasting & Mining Equipment Ltd.
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