Abstract: The present disclosure relates to a frame assembly of a heavy duty vehicle including an operator cabin. The frame assembly may comprise a superstructure frame having a first flange at least partially protruding from the cabin supporting frame mounting portion and having a collar and a plurality of first flange bores. The frame assembly may further comprise a cabin supporting frame having a first mounting section including a plurality of first mounting section bores, a first guiding member, and a second guiding member. The first and second guiding members may be configured to engage the collar for safely guiding the cabin supporting frame relative to the superstructure frame into a final assembling in which the plurality of first flange bores may be aligned with the plurality of first mounting section bores.

Abstract: A dual wheel adapter assembly for mounting dual wheel rims to a wheel hub is provided. The dual wheel adapter assembly may include a hollow cylindrical adapter, including a central bore defined by an inner surface of the adapter, a first contact surface, and a second contact surface. The dual wheel adapter assembly may also include an inboard wheel rim configured to support a tire, an outboard wheel rim configured to support a tire, and a wedge clamp configured to be coupled to the hub. The first contact surface may abut the hub and the wedge clamp may apply a compressive force to the second contact surface to couple the adapter to the hub.

Abstract: An eccentric assembly for a walking mechanism is provided. The eccentric assembly includes a barrel member and a shaft member. The barrel member includes a circumferential portion extending in a longitudinal direction and a web portion extending inwardly from the circumferential portion. Further, the web portion includes a cut-out region and an inner periphery outlining the cut-out region. The shaft member includes a tubular portion extending in the longitudinal direction and a flange portion extending outwardly from the tubular portion. The flange portion includes an outer periphery. Further, the shaft member is coupled to the barrel member such that the outer periphery of the flange portion substantially conforms to the inner periphery of the web portion. Further, the flange portion is configured to adjust an eccentricity of the shaft member with respect to the barrel member.

Abstract: A hydraulic valve block configured to specifically control an operation of a clam actuator of a face shovel bucket of a face shovel machine is disclosed. The hydraulic valve block comprises a first inlet, a second inlet, a first outlet connected to the first inlet via a first line and a second outlet connected to the second inlet via a second line. The hydraulic valve block further comprises a two port two position directional control valve interconnected between the first line and the second line, a first pressure relief valve interconnected between the first line and the second line and arranged in series with the two port two position directional control valve, and a second pressure relief valve interconnected between the first line and the second line and arranged in parallel to the first pressure relief valve and the two port two position directional control valve.

Abstract: A side wall of a movable part of an excavator bucket is disclosed. The side wall may have a sheet metal base. The sheet metal base may have an attachment portion for attaching the side wall to a rear wall of the excavator bucket. The sheet metal base may also have a cranked portion extending from the attachment portion. Further, the sheet metal base may have an extension portion extending from the cranked portion to a distal end of the sheet metal base.

Abstract: A tensioning assembly including a primary rod and a hydraulic jack. The primary rod being positioned adjacent to a center section of the hydraulic jack. The tensioning assembly further including a frame housing anchored to the hydraulic jack. The tensioning assembly also includes a link rod connected to the primary rod and a primary adjusting and a secondary adjusting nut associated with the link rod to adjust the tension of a cable or line.

Abstract: A void protection system includes a valve assembly, a second fluid source configured to provide hydraulic fluid to the hydraulic cylinder, an auxiliary valve configured to fluidly connect the hydraulic cylinder to the second fluid source, a sensor assembly, and a controller. The controller is configured to monitor fluid pressure within the hydraulic cylinder based on signals from the sensor assembly, based on a determination that pressure in a rod end or a head end of the hydraulic cylinder is below a first fluid pressure threshold, configure the valve assembly to fluidly connect the corresponding end to the first fluid source, and if the first fluid source is not operational, increase an opening of the auxiliary valve to fluidly connect the corresponding end to the second fluid source and cause the second fluid source to provide fluid until pressure in the corresponding end is above a second fluid pressure threshold.

Abstract: A mining machine such as a mining shovel includes a digging assembly having an upward extending boom and a dipper assembly generally horizontally supported by the boom and configured to crowd toward and retract from a vertical bank at a mine site. To determine if the dipper assembly strikes the bank, an electronic controller can calculate a calculated crowd force based in part on a crowd motor torque associated with a crowd motor, a crowd speed of the dipper assembly, and an inertia parameter. If the calculated crowd force exceeds a predetermined first crowd threshold, the electronic controller can register an impact event. In further aspects, the electronic controller can execute a force modification function to modify the crowding forces and a speed reduction function to reduce the crowd speed.

Abstract: A mining machine such as a mining shovel includes a digging assembly having an upward extending boom and a dipper arm generally horizontally supported by the boom. The dipper assembly includes a dipper disposed at one end of a dipper arm that can slide in translation with respect to the boom to crowd toward or retract from a vertical bank at the mining site. To translate the dipper assembly, the mining machine includes a crowd system having a crowd motor and a crowd actuator. An electronic controller receives the crowd motor torque, a crowd speed of the dipper assembly, and an inertia parameter associated with the dipper assembly. The electronic controller can determine an approximate location of the dipper with respect to the bank and, in a further aspect, can execute an anti-swing function if the dipper is in the bank.

Abstract: A mining machine such as a mining shovel includes a digging assembly having an upward extending boom and a dipper assembly with a dipper that is generally horizontally supported by the boom. A hoist system including hoist ropes attached to the dipper may be used to vertically pivot the dipper assembly with respect to the boom. To determine if the hoist ropes are properly supporting the weight of the dipper assembly, an electronic controller can calculate a calculated hoist force based on a hoist speed associated with the hoist ropes and a hoist motor torque from a hoist motor. If the calculated hoist force indicates that slack exists in the hoist ropes, the electronic controller can execute a slack reduction function to increase tension in the hoist ropes attached to the dipper.

Abstract: A snubber for a machine is provided. The snubber includes a frame that is mounted on an implement of the machine, a shaft that is operatively coupled to a movable component of the implement and a housing that is coupled to the shaft and rotatably received within the frame. The housing defines a cavity that is configured to store a fluid therein in a sealed manner. The snubber also includes at least one brake disc disposed within the housing and configured to rotate with the shaft and at least one brake pad disposed within the housing and configured to frictionally engage with the at least one brake disc to oppose rotational movement of the housing relative to the frame. The fluid is configured to at least partly remove heat generated due to the frictional engagement between the at least one brake disc and the at least one brake pad.

Abstract: A snubber for a machine includes a housing, a shaft and a pinion that is coupled to the shaft. The housing is mounted on an implement of the machine. The shaft is rotatably received within the housing and operatively coupled to a movable component of the implement. The snubber also includes a cylinder defining a cavity, a piston slidably received within the cylinder, a rack coupled to the piston, and a hydraulic device. The cylinder is at least partly disposed within the housing. The piston divides the cavity of the cylinder into a first chamber and a second chamber. The rack engages with the pinion to convert a rotation of the shaft into a linear movement of the piston. The hydraulic device is in fluid communication with the cavity and controls a flow of fluid between the first chamber and the second chamber to oppose rotation of the shaft.

Abstract: The disclosure provides a roller assembly for an undercarriage system of a machine. The undercarriage system includes a frame, which has a first inner surface defining a first opening. The roller assembly includes a roller supported on a roller shaft, and a spacer assembly. The spacer assembly includes a boss and a pad. The boss includes a second inner surface defining a second opening. The boss is fixedly attached to the frame, such that the second opening axially aligns with the first opening of the frame. The pad includes a third inner surface defining a third opening. The pad has a relatively greater hardness than the boss. The pad is fixedly attached to the boss, such that the third opening axially aligns with the second opening. Further, the roller shaft extends through the first opening, the second opening, and the third opening, to support the roller on the frame.

Abstract: A frame assembly for a machine is disclosed. The frame assembly includes a first frame member having a first surface, a second surface opposite to the first surface, and a third surface defining a first through-hole extending between the first surface and the second surface. The frame assembly further includes a second frame member spaced apart from the first frame member, the second frame member having a first surface, a second surface opposite to the first surface, and a third surface defining a second through-hole extending between the first surface and second surface. The frame assembly further includes a first sleeve member inserted through the first through-hole of the first frame member. The frame assembly further includes a second sleeve member inserted through the second through-hole of the second frame member. The frame assembly further includes a roller unit disposed between the first frame member and the second frame member.

Abstract: A hydraulic control system may include a closed loop hydraulic circuit with at least one hydraulic motor. A plurality of variable displacement pumps may be fluidly connected in parallel in the closed loop hydraulic circuit. A plurality of hydraulic actuators may be configured to adjust the displacement of the variable displacement pumps. A pilot valve assembly may be configured to supply the hydraulic actuators with hydraulic fluid having a pilot pressure corresponding to a desired displacement of the variable displacement pumps. A pressure regulating device may be configured to limit the pilot pressure of the hydraulic fluid supplied to the hydraulic actuators when a working pressure in the closed loop hydraulic circuit reaches a maximum allowable working pressure.

Abstract: A linkage system for a snubber of a machine is provided. The snubber is being mounted on an implement of the machine. The linkage system includes a first linkage component operatively coupled to the snubber. The first linkage component defines a plurality of apertures therein. The linkage system also includes a second linkage component having a first end distal to the first linkage component and a second end proximate the first linkage component. The first end of the second linkage component is pivotally coupled to a door of the implement about a door pivot axis. The second end of the second linkage component is selectively and pivotally coupled to one of the plurality of apertures about a link pivot axis in order to change a perpendicular distance between the door pivot axis and the link pivot axis.

Abstract: A support rail for a swing gear assembly having a thrust rail coupled to a swing gear includes a substantially horizontal first surface configured to be coupled to the swing gear such that the first surface engages a substantially horizontal top face of the swing gear, and a substantially vertical second surface intersecting the substantially horizontal first surface such that the second surface is substantially perpendicular to the first surface. The second surface is configured to engage a substantially vertical face of the thrust rail when the first surface is coupled to the swing gear. The first surface and the second surface are configured to inhibit a rotation of the thrust rail relative to the swing gear by engaging the top face of the swing gear and the vertical face of the thrust rail simultaneously.

Abstract: The present disclosure relates to a hydraulic mining shovel. The shovel may comprise a main frame, a power module and a counterweight module. The shovel may further comprise a first exhaust aftertreatment module and a second exhaust aftertreatment module, each being mounted onto the counterweight module and each including a reductant tank and pump unit and a selective catalytic reduction unit. The first exhaust aftertreatment module and the second exhaust aftertreatment module may be configured and arranged substantially mirror-symmetrically at opposing sides of the counterweight module with respect to a central longitudinal axis of the main frame.

Abstract: A combination manifold for selectively driving at least one hydraulic circuit of a machine includes at least one filter module that is configured to fluidly connect with at least one pump of the machine. The combination manifold further includes at least one junction module that is selectively coupled with at least a pair of adjacently located filter modules on the basis of the machine having a plurality of the pumps and the machine correspondingly employing a plurality of the filter modules. The combination manifold further includes at least one valve module that is selectively coupled to at least one of: the junction module and the filter module on the basis of the machine having at least a pair of hydraulic circuits therein.

Abstract: A shaft-hub assembly of a torque transmitting mechanism is provided. The shaft-hub assembly includes a shaft, a hub, and a key. The key couples the shaft to the hub. A first end of the shaft includes a first surface, which includes a first slot perpendicular to a central axis. The hub includes a disc attached to a hollow cylindrical member defining an axial passage. The disc includes a second slot perpendicular to the central axis and a plurality of first holes in communication with the second slot. The key fits within the first slot of the shaft and the second slot of the hub. The key includes a plurality of second holes axially aligned to the plurality of first holes in order to secure the key with the hub via a plurality of fasteners.