Abstract: The invention relates to the linear drive for the drive rollers (1, 1?) of an under-floor wheelset lathe. The two drive rollers (1, 1?), which each form a roller pair, are connected to each other in a form-fit manner. The form-fit connection comprises two gear racks (17, 17?) that engage with a common pinion (23), wherein the gear racks (17, 17?) are each connected to one power cylinder (25, 25?) and one intermediate lever (16, 16?) in an articulated manner and are supported on the side opposite the engagement with the pinion (23) by a roller guide (26, 26?).

Abstract: The present invention concerns a method and a device for inspecting railway wheels with respect to use-related wear and/or a material defect. The task of the present invention is to create a technical solution in this regard by means of which various configurations of railway wheels can be tested in a short time. In particular, an inspection should be carried out in override mode so that the test results for a complete train can be prepared during the passage time over an allocated test device. This task is accomplished in that the rolling railway wheelset passes through a spatially restricted magnetic field that is coupled through the rails along which the allocated rail vehicle is guided. For this purpose, a device is used in which an electromagnet (4; 5) is arranged between the rails (2; 3) on which a measuring coil is also configured for registering changes in the magnetic flux. (FIG.

Abstract: The invention relates to a method for machining surfaces of the bearing seats of main and pin bearings on crankshafts made of cast steel following the machining of surfaces with an undefined cutting edge by grinding or finishing. The problem of improving the quality of the running surfaces of the bearings of hardened or unhardened crankshafts is solved. This is achieved by irradiating the surfaces with a laser beam.

Abstract: This invention concerns a burnishing head for smooth rolling of the ring-shaped flat end faces (3, 4) at the thrust bearing of crankshafts by means of two cylindrical burnishing rollers (1, 2) which are arranged to be rotated and are side by side in parallel to each other within a burnishing head housing (12) that is pivotable about its longitudinal axis (20) to reach its the working position. Each burnishing roller (1, 2) is pivoted in a cage (10, 11) which is provided in the burnishing head housing (12) with low play (13) and lateral relocatability.

Abstract: The invention relates to a hard-rolling roller for a deep rolling tool having a torus-shaped base body for deep rolling of radiuses or recesses which limit the bearing trunnion on crankshafts on both sides, and two at least approximately truncated cone-shaped central bodies, rising on both sides of the body. A cylindrical body rises on the upper end surface of one of the two central bodies.

Abstract: The invention relates to a method for reprofiling wheelsets (1) rotatably mounted in axle bearing housings (6) on rail vehicles on underfloor wheelset lathes (12; 14) equipped with machining tools, a machine control for the machining tools, drive rollers (15), axial guide rollers (17), measuring rollers (13) as well as clamping devices (21; 22) to engage the axle bearing housings (6).

Abstract: The invention concerns a process for roll straightening crankshafts (8, 8?) using crankshaft deep rolling tools (1 to 7), in particular work rollers (18,19) which, while the crankshaft (8, 8?) is rotated about its axis of rotation (21), are pressed into the recesses (14 to 17) or radii that delimit the bearing pins (Hi, Pi) on either side with a roll straightening force (27, 30) that constantly fluctuates around the circumference of a bearing pin (H1 to H5, P1 to P4). Roll straightening is carried out by determining the individual vector (34) of the runout by size and direction (35) at each main bearing (Hi) of the crankshaft (8, 8?).

Abstract: The invention regards a deep rolling machine (2) for crankshafts (5) with several deep rolling units (3) in a scissor-type configuration that are attached to the deep rolling machine (2) in the direction of the axis of rotation (4) of the crankshaft (5) with respective lateral distances (6) one besides another in a way that they can swivel thanks to the fact that some deep rolling devices (3) are intended for the deep rolling of main bearing journals (14) and other deep rolling units (3) are intended for the deep rolling of the pin bearing journals of the crankshaft (5) and that the deep rolling units (3) carry at the outer ends of their two scissor-type arms respectively one deep roller head (11) and a supporting roller head (9) that, together, form a deep rolling tool (3) where the deep rolling tool (10) along the scissor-type arms has a distance from the fastening point of the deep rolling unit (3) to the deep rolling machine (2) that is long when compared to the ratio between the width (7) of the scissor-

Abstract: A work roller (1) is detachably attached to a housing (2). The work roller (1) is positioned on a pin between a pin head (7) and a lid (20) allowing it to rotate freely, while the housing (2) provides a recess (6) for the deep rolling tool (1), a receptacle (10) for the pin head (7) and a receptacle (19) for the lid (20). The receptacle (10) for the pin head (7) is shaped like a subarea (11, 14) of a truncated cone and has a concentric collar (23) around the rotational axis (24) of the work roller (1) while the receptacle (19) for the lid (20) is shaped like a subarea (16, 17) of a circular cylinder.

Abstract: The invention relates to a machine, in particular a machine tool (9) for deep rolling wheelset shafts (5) for rail vehicle wheelsets with a headstock (12) and a tailstock (13) which each have prick punch points (16) for holding a wheelset shaft (5) at its respective ends, a device (16, 18, 20, 21 and 22) for driving the wheelset shaft (5), as well as tools which can be moved in directions (z, x) on the machine tool (9) for deep rolling lengthwise sections (axle zones 1 to 4) of the wheelset shaft (5), and clamping and feed devices. The tools consist of several pairs of work rollers (14, 15, 23, 25, 24, 26), of which each pair is intended for deep rolling at least one axle zone (1, 2, 3, 4) of the wheelset shaft (5).

Abstract: The invention relates to the linear drive for the drive rollers (1, 1?) of an under-floor wheelset lathe. The two drive rollers (1, 1?), which each form a roller pair, are connected to each other in a form-fit manner. The form-fit connection comprises two gear racks (17, 17?) that engage with a common pinion (23), wherein the gear racks (17, 17?) are each connected to one power cylinder (25, 25?) and one intermediate lever (16, 16?) in an articulated manner and are supported on the side opposite the engagement with the pinion (23) by a roller guide (26, 26?).

Abstract: A deep rolling machine has a power unit (13) attached in a gate (31) such that the power unit (13) can be moved in the direction of force exertion (30). The power unit (13) is connected, with articulation, at one end (32), via a joint (33), to the end (11) of a shearing arm (3) of the deep rolling unit (15). The free end (34) of the gate (31) is fit with a back up roller (35) that is routed along a curved web (36), defined in a gap in the second end (11) of the shearing arm (3). In the closed position of the power unit (13), three joints (28, 29, 33) form a triangle (37). One of the joints (28) points to the rotating joint (5). The two shearing arms (3 and 4) of the deep rolling unit (15) are articulately connected to one another at the rotating joint (5). Also in the closed position, a crank lever (27) reaches a limit stop (39) at the end (12) of the shearing arm (4).

Abstract: Disclosed is a device for deep-rolling transition radii (5, 6) of crankshafts (1). Said device comprises at least one ruler-shaped rolling element (12, 13) that can be moved back and forth in one direction and has a substantially rectilinear contact surface (14, 15), a corresponding guiding surface for introducing a deep-rolling force (F) into a transition radius (5, 6) of a crankshaft (1), said guiding surface lying across from the guiding surface (14, 15) at a certain distance, and a means which generates a guiding and pressing force of the rolling element (12, 13). Said means consists of a guiding roller (29) which is rotatably mounted in the housing (18) of a deep-rolling tool (11) and has a circular guiding surface (24, 25) in relation to the guiding roller (29). The guiding surface of the rolling element (12, 13) adapts to said circular guiding surface (24, 25).

Abstract: A deep rolling machine has a power unit (13) attached in a gate (31) such that the power unit (13) can be moved in the direction of force exertion (30). The power unit (13) is connected, with articulation, at one end (32), via a joint (33), to the end (11) of a shearing arm (3) of the deep rolling unit (15). The free end (34) of the gate (31) is fit with a back up roller (35) that is routed along a curved web (36), defined in a gap in the second end (11) of the shearing arm (3). In the closed position of the power unit (13), three joints (28, 29, 33) form a triangle (37). One of the joints (28) points to the rotating joint (5). The two shearing arms (3 and 4) of the deep rolling unit (15) are articulately connected to one another at the rotating joint (5). Also in the closed position, a crank lever (27) reaches a limit stop (39) at the end (12) of the shearing arm (4).

Abstract: A work roller (1) is detachably attached to a housing (2). The work roller (1) is positioned on a pin between a pin head (7) and a lid (20) allowing it to rotate freely, while the housing (2) provides a recess (6) for the deep rolling tool (1), a receptacle (10) for the pin head (7) and a receptacle (19) for the lid (20). The receptacle (10) for the pin head (7) is shaped like a subarea (11, 14) of a truncated cone and has a concentric collar (23) around the rotational axis (24) of the work roller (1) while the receptacle (19) for the lid (20) is shaped like a subarea (16, 17) of a circular cylinder.

Abstract: The invention relates to a hydraulic wheel set press for the simultaneous pressing of two wheel (1, 2) or brake disks on a wheel axis (3) having a frame construction (4) mounted on a base (5), said frame construction being comprised of two identical vertical press stands (6, 7) connected to one another in a fixed manner at a mutual distance via horizontal traverses (8, 9). The press stands (6, 7) each have a housing (10, 11) serving to accommodate a centering cylinder (12) engaging the wheel axis (3) on one end (14 15). In addition, a press cylinder (13) is provided concentrically to the centering cylinder (12). said press cylinder engaging the wheel (1, 2) or brake disk to be pressed, as well as control devices (22) for loading each of the two cylinders (12, 13) with a pressure medium.

Abstract: A measuring instrument has a first section for rolling a wheelset under lateral guidance of the wheelset into a measurement section with an auxiliary rail for supporting the wheelset on the outer edges of its wheels and a third section for rolling out the wheelset into the railway track, with the first and third section of the measuring instrument also designed as track panels and for which the optical beam devices under the measurement section are intended. The first and third section of the measuring instrument are flexibly embedded in the ballast of the superstructure of the railway track, while at least one of the optical beam devices is mounted vibration-free on the formation of the railway track in a pre-determined position in relation to the measurement section of the measuring instrument with no contact to the other parts of the measuring instrument.

Abstract: The invention concerned is a deep rolling head (1) of a deep rolling unit for deep rolling of radii or recesses (4) at the bearing trunnions (5) of crankshafts with the help of work rollers (3) which are held on both sides of the contact point in the direction of circumference (6) at the deep rolling head with the bearing trunnion (5) from cages (7) and can be rotated freely in there, whereby the cages (7) are held at the deep rolling head (1) by cage retainers (10). At least one cage (7) of the deep rolling head (1) is designed as cage roller (9) and a stopping device in the form of a holding plate (14) is provided for the work roller (3).

Abstract: The invention relates to a process for finish-machining of bearing positions on main bearing journals and connecting rod bearing journals of crankshafts for motor car engines, whereby the crankshafts have roundings between the bearing positions and transitions adjacent in each case to the bearing positions. The roundings are deep rolled with a deep rolling tool and then, while maintaining a distance interval to an individual transition in each case the bearing position concerned is machined with removal of material with a small cutting depth.

Abstract: The invention relates to a method for deep rolling the passes or radii on the transitions between journal and cheeks or flanges of crankshafts by means of a deep rolling device (1) of a deep rolling machine, said deep rolling device having a lazy tongs-type design. The deep rolling device (1) has two tongs arms (2, 3) that are articulated to each other via a pivot joint (24). The corresponding outer ends (4, 5, 9, 10) of the tongs arms (2, 3) are provided with a deep rolling tool (6) or a force generator (11) for generating the deep rolling force. A measuring tape (18) and a sensor (19) which are provided on the pivot joint (24) are used to measure the impression depth of the deep rolling rollers (12) under the effect of the deep rolling force. A measuring device (22) mounted on the exterior (21) of a tongs arm (2) is used to measure the degree by which the tongs arm (2) bends under the effect of the deep rolling force.