Abstract: A hydraulic quick coupling is described for the coupling of structural components. Two interacting quick-coupling parts are provided which are arranged respectively on the structural components, one quick-coupling part having at least one guide bolt which can engage in a centering bore of the quick-coupling part lying opposite it, each quick-coupling part being provided with coupling plugs or coupling sleeves for the connection of the hydraulic lines, and at least one quick-coupling part being arranged movably on one structural component in order to connect or separate the two quick-coupling parts.

Abstract: The invention relates to an excavator or to a machine for material transfer comprising an element movable via at least one hydraulic cylinder. In accordance with the invention, one or more hydraulic cylinders are additionally hinged to the element, with the additional hydraulic cylinder(s) being connected to one or more hydraulic accumulators.

Abstract: The invention relates to a transfer apparatus comprising an operator cabin articulated at a movable and travelable boom, wherein the boom consists of two partial booms which are connected to one another via a connection piece. In accordance with the invention, at least one partial boom is a telescopic boom.

Abstract: The present disclosure relates to an overload warning means for excavators, preferably hydraulic excavators or material handling devices, with three or more contact points, the contact forces being determined at the contact points such that they are brought into an order descending by the amount thereof, so that F1>F2>F3 > . . . >Fn, and that the static stability is determined according to the following formula: S = ? i = 3 n ? F i ? i = 1 n ? F i ? S min .

Abstract: This invention relates to a digging or gripping tool with at least one cutting edge, wherein rollers are disposed along the outer edge of the cutting edge in accordance with the invention.

Abstract: A multi-scoop grab, having at least one grab scoop (10) with at least one prong, wherein at least one wear element (16, 18, 20) is arranged at the at least one grab scoop (10) such that the main wear regions are covered by the at least one wear element (16, 18, 20) (FIG. 1 ).

Abstract: The present application relates to a hydraulic system having a hydraulic supply, a consumer and having a control valve, which is in communication with the consumer by means of a first line and a second line, it being possible for the control valve to be switched into different positions, and the control valve connecting the hydraulic supply to the first line in at least one position. Furthermore, a first valve, which is in communication with the first line and the second line, is provided. Moreover, a third line, serving as a further return, which is in communication with the first valve and does not lead to or open out in the control valve, is also provided, the first valve being connected in such a manner that when pressure is applied to the first line it opens up a connection between the second and third lines.

Abstract: The invention relates to a construction machine with a quick coupler for the coupling of a tool to a boom having a quick coupling part on the boom side and a quick coupling part on the tool side having a power circuit coupling, in particular a hydraulic coupling, having plate-like supports of the power coupling parts for the automatic coupling of a power connection on the tool side to a power connection on the boom side. In accordance with the invention, a write/read head is arranged in or at one of the two plate-like supports. Furthermore, a data carrier is arranged in the oppositely disposed plate-like support such that both can exchange data with one another in the coupled state.

Abstract: The invention concerns a material transloading equipment unit with an undercarriage and a turntable connected with this undercarriage by means of a track ring, on which an arm that can be pivoted by means of at least one hoisting cylinder is pivot-mounted. According to the invention, on the one hand at least one additional pivot point for the arm is provided on the turntable and/or on the boom foot, and at least one additional pivot point is provided in the arm or in a pivot plate on the arm. This allows a number of possible combinations for the kinematics of the arm.

Abstract: The invention relates to a quick-change attachment to connect a tool, preferably, to the boom of a hydraulic excavator, comprising a boom-connecting quick-change attachment component to accommodate a tool, one end of which has a pin, and the other end of which is retained within a bearing of the quick-change attachment by positive-fit or friction engagement. According to the invention, a bushing in the form of a half-liner having a large support angle is inserted in the bearing.

Abstract: The invention pertains to a construction machine with a rapid-action coupling for coupling a tool to a boom, wherein a rapid-action coupling part is provided on the boom side and a rapid-action coupling part is provided on the tool side such that an energy circuit can be produced, and wherein the rapid-action coupling serves for automatically coupling an energy connection on the tool side to an energy connection on the boom side. According to the invention, an identification system is provided which comprises means on the tool side which serve for identifying the type and the size of the tool, as well as a device on the construction machine side which serve for reading out and processing the information.

Abstract: A quick coupling for coupling a tool to the boom of a hydraulic excavator and the like with a quick coupling part at the boom side and a quick coupling part at the tool side which can be latched together via a pair of spaced latching axles and with a power circuit coupling, in particular a hydraulic coupling, for the automatic coupling of a power connector at the tool side to a power connector at the boom side, wherein the power circuit coupling has a power coupling part at the boom side and a power coupling part at the tool side which ar arranged at the quick coupling part at the boom side or at the quick coupling part at the tool side such that they automatically couple as soon as the two quick coupling parts are pivoted together into their latching position about a first of the two latching axles.

Abstract: The invention relates to a quick-change attachment to connect a tool, preferably, to the boom of a hydraulic excavator, comprising a boom-connecting quick-change attachment component to accommodate a tool, one end of which has a pin, and the other end of which is retained within a bearing of the quick-change attachment by positive-fit or friction engagement. According to the invention, a bushing in the form of a half-liner having a large support angle is inserted in the bearing.

Abstract: An industrial shaft, particularly for packing equipment, consisting of a longitudinal frame structure and supply lines for pressure, current, or the like, running along the frame structure. The frame structure has a box-shaped cross-section, and the supply lines run inside the box-shaped frame.

Abstract: The invention pertains to a construction machine with a rapid-action coupling for coupling a tool to a boom, wherein a rapid-action coupling part is provided on the boom side and a rapid-action coupling part is provided on the tool side such that an energy circuit can be produced, and wherein the rapid-action coupling serves for automatically coupling an energy connection on the tool side to an energy connection on the boom side. According to the invention, an identification system is provided which comprises means on the tool side which serve for identifying the type and the size of the tool, as well as means on the construction machine side which serve for reading out and processing the information.

Abstract: The invention relates to a rapid coupling for connection of an implement to an operating arm, with at least one pair of lock pins that are movably guided toward each other in alignment and that can be moved toward and away from each other by a drive and that penetrate into an aligned lock hole in the implement in their extended lock position. According to the invention, pre-centering device are provided to pre-center the retracted lock pins on the lock holes.

Abstract: In a diesel for a hydraulic excavator or the like, the speed regulator of the injection pump is set by a lever which is pivoted by a piston-cylinder unit against the force of a return spring. Before or during operation under load, the piston-cylinder unit brings the setting lever to a preselected load position and, after terminating or interrupting operation under load, moves it to its idling position. At least one handle of the control levers for the hydraulically movable implements of the excavator is provided with a switch which, on first actuation, so operates a magnetic valve that the piston cylinder unit or the return spring moves the setting lever to the load position and, on being actuated again, returns the setting lever to the idling position.

Abstract: A suspension for a replaceable hydraulically operable tool attachment on the tool holder excavator or crane comprises a fork member pivoted to the tool holder by pivot pins which contain bores to establish hydraulic communication between fluid supply and discharge passages in the tool holder and associated passages in the fork member leading to the tool.