The automatic connection device includes a fixed connection plate, that is attached to or integrated with the tool holder and stationary relative to same, a movable connection plate, that is mounted movably on the tool so as to be able to both pivot and slide relative to same, and a centering device provided on the tool holder and the tool such that, when said tool is mounted and assembled mechanically on the tool holder, the connection plates are mutually centered and the electrical, pneumatic and/or hydraulic couplers of same are mutually connected so as to connect at least one of the electrical, pneumatic and/or hydraulic networks of the tool to that of the tool holder.

A power machine can include a frame, a lift arm, and one or more electrical devices for control of one or more work elements. The electrical devices can be controlled to improve positional accuracy for work elements during work operations, to improve power management and customer experience (e.g., to provide smoother ride during drive operations), and to provide float functionality for work elements.

An integrated multi-connection hydraulic group for connecting the hydraulic circuit on-board an operating machine to a plurality of hydraulic, electrical, and/or pneumatic lines for the connection of corresponding lines of a user includes a block or manifold having connection elements for connecting the block to the circuit of the machine, and a plurality of fast female couplings housed in the block that face outwardly from a plate-shaped surface of the block and connect with a corresponding number of male couplings of the user. A plurality of hydraulic elements is provided within the block or manifold for adjusting the flow that feeds the lines and is in fluid connection with the fast female couplings via respective channels defined inside the block.

The invention relates to a rotator (100) for a tool (200). The rotator (100) comprises a stator (102) and a rotor (104) rotatably arranged inside the stator (102). The rotor (104) comprises a radial bearing (122) having a first axial extension (a1) in the rotator (100). The rotator (100) comprises a separate bearing (112) arranged radially outside the rotor (104). The separate bearing (112) is configured to carry an external load of the rotator (100). The rotator (100) further comprises an electrical swivel (108) and/or an angle meter (116) arranged inside the rotor (102), and the electrical swivel (108) and/or the angle meter (116) at least partially extends axially in the first axial extension (a1) in the rotator (100). Thereby, a compact rotator design is provided.

An implement attachment device for tractors allowing for easy and quick attachment of implements and tools to a tractor bucket along with correspondingly easy and quick detachment of such implements and tools, wherein such device may itself may be readily connected or disconnected to the bucket and while connected may be easily switched from a bottom use-ready position to a top stowed position in relation to the tractor bucket.

A method of coupling a tool to a work machine including inserting a front lug of a coupling assembly into a front recess on the tool, inserting a rear lug of the coupling assembly into a rear recess on the tool, moving a retaining member of the coupler assembly to a retaining position relative to the tool to releasably mount the tool to the work machine, while simultaneously preventing movement of a hydraulic coupling manifold on the coupling assembly from moving; and moving the hydraulic coupling manifold to a coupling position with a hydraulic power transmission coupling on the tool to hydraulically couple the tool to the work machine in response to the retaining member reaching the retaining position.

An apparatus for attachment to a tractor the apparatus comprising a primary implement and at a first end, connections suitable to connect to the three point linkage of the tractor and at a second end, connections suitable to connect to the three point hitch points of a secondary implement.

Disclosed embodiments include power machines, implement coupling systems and methods in which hydraulic or electric coupling between an implement and the power machine is made automatically using an existing actuator, for example a tilt actuator, of the power machine. Thus, additional actuators are not required to achieve hydraulic or electric coupling. In exemplary embodiments, power coupling is also free from the process of mechanically coupling the implement to the implement carrier. Also, in exemplary embodiments, a machine side coupler assembly moves with the implement after a connection is established, despite the implement coupler assembly being removed from the implement carrier. This allows the same implement carrier to be used on all similarly sized machines.

The invention solves this problem by retrofitting the machine and implement with mating hydraulic connector blocks, which automatically make the hydraulic connections when the retrofitted machine attaches to the retrofitted implement. In addition, the retrofitted machine is still compatible with non-hydraulic implements. Both a method and a kit are described and claimed.

A rotary ditcher attachment is selectively mounted onto the bottom of an excavator implement. The rotary ditcher attachment has an attachment frame including a mounting bracket for releasable mounting onto a tool mount on the boom of the excavator implement. A rotary disc assembly on the attachment frame includes a rotor supported for rotation relative to the attachment frame about a disc axis, and a plurality of blades supported on the rotor for cutting into the ground as the rotor is rotated. A drive motor for driving rotation of the rotor relative to the attachment frame is supported on the attachment frame so as to be releasable from the boom together with the attachment frame.