Drilling tool changer device and a method for making the change
OwnerRaúl Patricio Bizama Almendras, Felipe Izquierdo Gonzálezinventors
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Abstract
A device and a method for changing the drill bits, tricone bits or DTH bits of drill strings on a drilling platform is describe herein, the device comprising an arm element (1) moveable in a rotating, vertical or horizontal manner. A post or supporting element (5) is connected to one of the ends of arm (1) and it is connected to arm (1) in such a way that it moves the arm. Element (5) serves as a base for arm element (1) and includes a drive unit (6)) allowing arm (1) to retract and extend in a controlled manner. A drill bit storage and receiving element (3) is at the other end of the arm (1), and element (3) has a rotating surface, in addition to having a hydraulic motor (7) or other type of motor to move same.
Claims4
A device for changing a drill bit of a drilling string in a surface and production drilling rig in large-scale mining and for handling and/or changing a guide bushing of said string on a drilling platform wherein the device comprises:
- (a) an arm element (1) that is capable of rotating, vertical, and/or horizontal movement;
- (b) a post or support element (5) that is connected to a first end of said arm element (1), wherein the post includes a motor which provides the rotating, vertical, and/or horizontal movement of the arm;
- (c) a bit storage and reception element (3) that is located on a second end of said arm element (1);
- said bit storage and reception element (3) has a rotating surfaceand a motor (7) to provide rotation of the rotating surface;
- (d) a support structure (8) with a drive system (9), wherein the support structure supports a clamp arm (4) which carries a clamp element (2) that moves up and down with the clamp arm relative to said support structure (8);
- said clamp element (2) being configured to engage and slide the guide bushing relative to the drill bit upon actuation of said drive system (9), wherein sliding of the guide bushing relative to the drill bit allows access of a breaking key for releasing the drill bit from the drilling string;
- said bit storage and reception element also contains support parts necessary for supporting the drill bit during the task of breaking a threaded connection of the drill bit of the drilling string in the surface and production drilling rig, which allows torsional and vertical forces to be dissipated through the drilling platform;
- (e) a PLC control panel (10) configured to manage and control said arm element (1), said post or support element (5), said motor, said bit storage and reception element (3), and said clamp arm (4) to change the drill bit of the drilling string and to slide or replace the guide bushing;
- and
- (f) a remote control element installed in a cabin with which an operator controls the device from the cabin.
Dependencies are inferred from the claim text.