Abstract: The invention relates to a gear for conveyors which has a drive shaft to which a drive motor is to be fastened as well as an output shaft with which the gear is connected to the conveyor. However, at least one gear step is provided within the gear. Moreover, the gear is provided with a freewheel locking in one direction of rotation. A second gear step is provided in this case between the freewheel and the elements transmitting torque between drive and output shaft during normal operation, so that the freewheel should be operated at a higher speed and must only provide a low holding moment in the event of a stoppage.

Abstract: The invention involves an agricultural machine with a drive train to be coupled onto the power take-off shaft of a tractor, with a transmission integrated into the drive train. In these types of agricultural machines it is frequently necessary, after starting at a high torque, to select a lower transmission ratio, so that the agricultural machine can be driven at an optimal speed by an engine to which sufficient power is then still available for the propulsion for the tractor. In order to make this possible, it is proposed, in an agricultural machine of this type, to construct the transmission as a continuously variable conical-disk belt or chain transmission which is preferably fully hydraulic, is coupled with a hydraulic clutch, and has idle-shifting in the starting transmission ratio.

Abstract: The invention relates to a gear for conveyors which has a drive shaft to which a drive motor is to be fastened as well as an output shaft with which the gear is connected to the conveyor. However, at least one gear step is provided within the gear. Moreover, the gear is provided with a freewheel locking in one direction of rotation. A second gear step is provided in this case between the freewheel and the elements transmitting torque between drive and output shaft during normal operation, so that the freewheel should be operated at a higher speed and must only provide a low holding moment in the event of a stoppage.

Abstract: The invention relates to an infinite adjustable cone pulley drive with a torque sensor. In order to be able to produce these cone pulley drives in a more cost-effective and functional manner, according to the invention, roll bodies running on pressure curves and provided in the torque sensor for an axial force generation and axial adjustment are proposed.

Abstract: The invention involves an agricultural machine with a drive train to be coupled onto the power take-off shaft of a tractor, with a transmission integrated into the drive train. In these types of agricultural machines it is frequently necessary, after starting at a high torque, to select a lower transmission ratio, so that the agricultural machine can be driven at an optimal speed by an engine to which sufficient power is then still available for the propulsion for the tractor. In order to make this possible, it is proposed, in an agricultural machine of this type, to construct the transmission as a continuously variable conical-disk belt or chain transmission which is preferably fully hydraulic, is coupled with a hydraulic clutch, and has idle-shifting in the starting transmission ratio.

Abstract: Provided is an infinitely variable cone pulley transmission for which the contact pressure between the cone pulley pairs and the traction is generated hydraulically on one transmission side and mechanical, with the aid of a spring, on the other transmission side. The second transmission side is provided with an axially fixed and an axially movable cone pulley with extended hub. The contact pressure mechanism includes a cam sleeve that is fixed relative to the shaft, a cam sleeve formed by the free end of the hub and roll bodies for the force transmittal, which are inserted between opposite arranged cam curves and rotate around axes extending radial to the transmission shaft. The roll bodies are guided by rings and are held at a mutual distance to each other and with spring force in the axial center region between the cam sleeves, wherein the spring is arranged coaxial on the extended hub.

Abstract: A pulley gear for an infinitely-variable pulley drive has one pulley disposed on a drive shaft and another pulley disposed on an output shaft, and a transmission element circulating between the pulleys. An output side pressing force is applied to the output side pulley by a pressure medium and a drive side pressing force is applied to the drive side pulley by the pressure medium. The pulley gear has a valve that generates a torque-dependent pressure through the torque-dependent relative movement of a first ring, a jacket, and a second ring, thereby providing a load-dependent pressing force. A cylinder and the second ring form a first cylinder-piston aggregate, and the jacket and first and second rings form a second cylinder-piston aggregate. The first ring has a first cam track thereon and the second ring has a second cam track.

Abstract: Provided is a bevel gear unit with continuous gearing adjustment, for which the contact pressure between the bevel gear pairs and the traction means is generated hydraulically on one gear unit side and mechanically, with the aid of a spring, on the other gear unit side. For this, the second gear unit side is provided with an axially fixed bevel gear and an axially movable bevel gear with extended hub, wherein the bevel gears are connected so as to rotate jointly on their gear unit shaft and are coupled to the shaft via a contact pressure mechanism that depends on the rotational moment or a rotational moment and the gearing. The contact pressure mechanism consists of a cam sleeve that is fixed relative to the shaft, a cam sleeve formed by the free end of the hub and roll bodies for the force transmittal, which are inserted between opposite arranged cam curves and rotate around axes extending radial to the gear unit shaft.

Abstract: Rocker link elements (32, 33), which are located in pairs for connection of plate links (40), have end facing friction surfaces (43) which are essentially part spherical, for cooperation with essentially part spherical cone surfaces of cone disks (3, 4, 7, 8, 24-27). A base or central surface line is located approximately at a radial position of engagement with the end facing surfaces (43) of the rocker elements (32, 33) with the cone surfaces of the cones when the transmission is set for a transmission ratio of 1:1. To prevent engagement of edge regions of the rocker link elements with the respective cone disks, surface lines (54, 55) located radially outwardly, or inwardly, respectively, from a central surface line (49, 53), are inclined by an angle (.delta.), with respect to the base or central surface line. The angle of inclination (.delta.

Abstract: A cone pulley transmission is disclosed which includes an infinitely actuatable and adjustable transmission wherein an axially displaceable cone pulley disc is adjustable by application of hydraulic tensioning so as to generate the pressure forces acting on a transmission belt rotating between the cone pulley discs, with the tensioning being controlled by a pressure medium through a sliding control valve. The tensioning is provided by different sized pressure chargeable surfaces and is throttled to different degrees with respect to the associated outlet of the sliding control valve. In this connection, it is provided that at least one outlet can be changed as a function of certain parameters.

Abstract: An infinitely variable cone disc transmission is disclosed in which the contact pressure forces are generated fully hydraulically and in which the contact pressure level is set either solely by way of a torque sensor that is disposed on the drive shaft and constitutes a pressure medium throttle that is adjustable as a function of the load, or in which a pressurizing valve preceding this torque sensor and controlled as a function of the transmission ratio is employed to additionally effect throttling as a function of the transmission ratio.

Abstract: The link chain is formed of elongated links (2) connected transversely by connecting joints (4) which are formed by pairs of connecting joint elements (1). The connecting joint elements, in cross section, are somewhat crescent-shaped or bent, oval, and define joint engagement surfaces in the region of the terminal ends, for engagement with link engagement surfaces formed in apertures (5) of the link elements (2). The convex side of an inner link element (1) of the pair fits against the concave side of an outer link element of the pair, which, in turn, bears with its joint engagement against the link engagement surface of the aperture.