The present disclosure is directed to systems and methods for simultaneously and concentrically handling cylindrical objects of different diameters. Also, the present disclosure is directed to a handler having a clamp that includes pairs of outer and inner tongs spaced apart on separate sides of the central plane that is orthogonal to a central longitudinal axis of the cylindrical object. Some embodiments may include a clamp having a mounting plate and a piston assembly coupled to the mounting plate where the central plane is parallel to the mounting plate. Some embodiments include a plurality of linkage bars pivotally coupled between the piston assembly and the plurality of outer tongs and inner tongs. In some embodiments, in response to a movement of the piston assembly, the inner and outer tongs pivot between an open position and a closed position to secure the cylindrical object between the inner and outer tongs.
B66C 1/42 - Gripping members engaging only the external or internal surface of the articles
B66C 1/58 - Gripping members engaging only the external or internal surface of the articles and deforming the articles, e.g. by using gripping members such as tongs or grapples
E21B 19/14 - Racks, ramps, troughs or bins, for holding the lengths of rod singly or connected; Handling between storage place and borehole
The present disclosure is directed to systems and methods for simultaneously and concentrically handling cylindrical objects of different diameters. Also, the present disclosure is directed to a handler having a clamp that includes pairs of outer and inner tongs spaced apart on separate sides of the central plane that is orthogonal to a central longitudinal axis of the cylindrical object. Some embodiments may include a clamp having a mounting plate and a piston assembly coupled to the mounting plate where the central plane is parallel to the mounting plate. Some embodiments include a plurality of linkage bars pivotally coupled between the piston assembly and the plurality of outer tongs and inner tongs. In some embodiments, in response to a movement of the piston assembly, the inner and outer tongs pivot between an open position and a closed position to secure the cylindrical object between the inner and outer tongs.
A rod and casing handler according to embodiments of the present disclosure includes a boom mount that is configured to be coupled to a boom. A clamp mounting structure is coupled to the boom mount and has a central portion, a first arm, and a second arm, where each arm extends from the central portion. A first clamp is coupled to the first arm and includes a first set of actuatable tongs and a first removable saddle plate. A second clamp is coupled to the second arm, and it includes a second set of actuatable tongs and a second removable saddle plate. The first removable saddle plate has a first arcuate surface sized and shaped to correspond to a cylindrical body having a first diameter, and the second saddle plate has a second arcuate surface sized and shaped to correspond to a cylindrical body having a second diameter, the first and second arcuate surfaces are disposed to hold the first cylindrical body in coaxial alignment with the second cylindrical body.
B66C 1/62 - Load-engaging elements or devices attached to lifting, lowering, or hauling gear of cranes, or adapted for connection therewith for transmitting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
E21B 19/14 - Racks, ramps, troughs or bins, for holding the lengths of rod singly or connected; Handling between storage place and borehole
B66C 1/68 - Load-engaging elements or devices attached to lifting, lowering, or hauling gear of cranes, or adapted for connection therewith for transmitting forces to articles or groups of articles mounted on, or guided by, jibs
E21B 19/24 - Guiding or centralising devices for drilling rods or pipes
E21B 19/15 - Racking of rods in horizontal position; Handling between horizontal and vertical position
A rod and casing handler according to embodiments of the present disclosure includes a boom mount that is configured to be coupled to a boom. A clamp mounting structure is coupled to the boom mount and has a central portion, a first arm, and a second arm, where each arm extends from the central portion. A first clamp is coupled to the first arm and includes a first set of actuatable tongs and a first removable saddle plate. A second clamp is coupled to the second arm, and it includes a second set of actuatable tongs and a second removable saddle plate. The first removable saddle plate has a first arcuate surface sized and shaped to correspond to a cylindrical body having a first diameter, and the second saddle plate has a second arcuate surface sized and shaped to correspond to a cylindrical body having a second diameter.
A rod and casing handler according to embodiments of the present disclosure includes a boom mount that is configured to be coupled to a boom. A clamp mounting structure is coupled to the boom mount and has a central portion, a first arm, and a second arm, where each arm extends from the central portion. A first clamp is coupled to the first arm and includes a first set of actuatable tongs and a first removable saddle plate. A second clamp is coupled to the second arm, and it includes a second set of actuatable tongs and a second removable saddle plate. The first removable saddle plate has a first arcuate surface sized and shaped to correspond to a cylindrical body having a first diameter, and the second saddle plate has a second arcuate surface sized and shaped to correspond to a cylindrical body having a second diameter.
E21B 19/14 - Racks, ramps, troughs or bins, for holding the lengths of rod singly or connected; Handling between storage place and borehole
E21B 19/20 - Combined feeding from rack and connecting, e.g. automatically
B66C 23/04 - Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes with jibs the effective length of which is variable in operation, e.g. longitudinally displaceable, extensible
B66F 11/04 - Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
A rod and casing handler according to embodiments of the present disclosure includes a boom mount that is configured to be coupled to a boom. A clamp mounting structure is coupled to the boom mount and has a central portion, a first arm, and a second arm, where each arm extends from the central portion. A first clamp is coupled to the first arm and includes a first set of actuatable tongs and a first removable saddle plate. A second clamp is coupled to the second arm, and it includes a second set of actuatable tongs and a second removable saddle plate. The first removable saddle plate has a first arcuate surface sized and shaped to correspond to a cylindrical body having a first diameter, and the second saddle plate has a second arcuate surface sized and shaped to correspond to a cylindrical body having a second diameter.
This disclosure describes methods and systems for remote control of stroke length and frequency of percussion apparatus, such as a rock hammer drill. At a high level, the hammer drill is allowed to stay at a default low stroke length and high frequency to avoid applying excessive cyclic stress to the housing of the hammer drill and can be controlled to operate at a long stroke length and low frequency when the hammer drill has engaged the target material. The long stroke length and low frequency during operation can be initiated when a sufficient forward feed pressure is provided. While the hammer drill is idling or retracting, the forward fee pressure is not sufficient for the long stroke length operation and thus the drill operates at the default state and at a safe stress level to avoid premature damage.
E21B 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
8.
REMOTE CONTROL OF STROKE AND FREQUENCY OF PERCUSSION APPARATUS AND METHODS THEREOF
This disclosure describes methods and systems for remote control of stroke length and frequency of percussion apparatus, such as a rock hammer drill. At a high level, the hammer drill is allowed to stay at a default low stroke length and high frequency to avoid applying excessive cyclic stress to the housing of the hammer drill and can be controlled to operate at a long stroke length and low frequency when the hammer drill has engaged the target material. The long stroke length and low frequency during operation can be initiated when a sufficient forward feed pressure is provided. While the hammer drill is idling or retracting, the forward fee pressure is not sufficient for the long stroke length operation and thus the drill operates at the default state and at a safe stress level to avoid premature damage.
B25D 9/26 - Control devices for adjusting the stroke of the piston or the force or frequency of impact thereof
B25D 9/14 - Control devices for the reciprocating piston
E21B 1/26 - Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure by liquid pressure
This disclosure describes methods and systems for remote control of stroke length and frequency of percussion apparatus, such as a rock hammer drill. At a high level, the hammer drill is allowed to stay at a default low stroke length and high frequency to avoid applying excessive cyclic stress to the housing of the hammer drill and can be controlled to operate at a long stroke length and low frequency when the hammer drill has engaged the target material. The long stroke length and low frequency during operation can be initiated when a sufficient forward feed pressure is provided. While the hammer drill is idling or retracting, the forward fee pressure is not sufficient for the long stroke length operation and thus the drill operates at the default state and at a safe stress level to avoid premature damage.
A percussion drill, and methods of using the same, including a shank in mechanical alignment with a piston-hammer and a valve in fluid communication with the piston-hammer. The percussion drill further includes an internal hydraulic dampening system for reducing the velocity of the piston-hammer when the shank is forward of a power position relative to the velocity of the piston-hammer when the shank is in a power position. Preferably, the internal hydraulic dampening system includes mechanical alignment of a portion of the piston-hammer with a port in fluid communication with the valve, operable to reduce fluid flow into an area surrounding the valve when the piston-hammer is forward of its position relative to its normal operation.
A percussion drill, and methods of using the same, including a shank in mechanical alignment with a piston-hammer and a valve in fluid communication with the piston-hammer. The percussion drill further includes an internal hydraulic dampening system for reducing the velocity of the piston-hammer when the shank is forward of a power position relative to the velocity of the piston-hammer when the shank is in a power position. Preferably, the internal hydraulic dampening system includes mechanical alignment of a portion of the piston-hammer with a port in fluid communication with the valve, operable to reduce fluid flow into an area surrounding the valve when the piston-hammer is forward of its position relative to its normal operation.
A drill stem centralizer and/or breakout wrench includes a frame with opposed hydraulic cylinder actuators mounted on the frame and engaged in with jaw support members for movement toward and away from each other for centralizing or breakout of drill stem sections. The hydraulic actuators are mounted on trunnions which are supported by bearing caps which may be indexed to change the spacing of the opposed actuators to accommodate a wide range of drill stem diameters or cross-sectional shapes. The jaw support members are provided with laterally spaced guide parts which are moveable in slots in the frame to guide the jaw support members for linear reciprocal movement in response to actuation by the hydraulic actuators. The frame may be mounted for limited rotation on a feed beam to effect drill stem breakout operations.
