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: A mobile wheelset reprofiling device mounted on rollers which can be moved on a workshop track for reprofiling wheelsets is provided. The wheelsets are mounted in a bogie such that they can rotate. The reprofiling includes using a mobile wheelset lathe, which can be connected to a corresponding service container which is also mounted on rollers and can be moved on a workshop track. A device for supporting another wheelset which is currently not being machined is also provided. The mobile wheelset lathe, the service container and the device for supporting the wheelsets are attached to a common support frame which is mounted on rollers which can be moved in the workshop track.

Abstract: A deep rolling roller head includes two housings for the deep rolling of the outer radii or fillets of split-pin crankshaft journals by means of two deep rolling rollers which are pressed into one of the two fillets under a rolling force while the crankshaft rotates around its axis of rotation. The two housings follow at the same time the different movements of the journals and support each other with their insides across from each other on a bearing plate. The insides of the housings bear on either side of the axis of rotation of the crankshaft and at a distance from it on an extension segment extending in the direction of the rolling force to below a contact point between the deep rolling rollers and the fillets to be deep-rolled. The bearing plate connected permanently to the inside and the extensions of one of the two housings.

Abstract: The invention concerns a deep rolling head (2) of a deep rolling tool of a shears-type deep rolling unit of a deep rolling machine used for the deep rolling of radii or fillets (5, 6) on the bearing pins (9) of crankshafts (7) with the aid of deep rollers (4) that are rotatably supported in the deep rolling head (2) with appropriate clearance, whereby the deep rolling head (2) is mounted at the outer end of one of the two shears arms (1) of the deep rolling unit. The deep rolling head (2) is pivotably attached to the end (1) of the shears arm.

Abstract: The present invention relates to an underfloor wheelset lathe for machining the profile of wheels (8, 9) of wheelsets for railway vehicles, in which the wheelsets are rotatably mounted in axle bearing housing outside the wheels (8, 9), with a machine bed (10), two supports mounted on the machine bed that can be moved in the X and Z-axis direction of the underfloor wheelset lathe and are provided for holding tools for the machining, entry track rails (5, 6) that can be removed during machining for positioning the wheels (8, 9) over the tools, clamping elements for gripping the axle bearing housings, roller pairs for each wheel (8, 9) for lifting, driving and lowering the wheelset before, during and after machining. The underfloor wheelset lathe is intended for installation in an inspection shaft (1) for rail vehicles. It has a machine bed (10) with a vertical height (11) that is less than the depth (2) of the inspection shaft (1).

Abstract: The invention relates to a burnishing roller head (10) for burnishing radii (28) or recesses which respectively laterally define the bearing seats of main and lifting journals (3, 4) of crankshafts (1) for motors of motor vehicles. Two disk-shaped and cylindrical burnishing rollers (11, 12) with the same diameter and approximately the same width are arranged parallel and at a mutual distance from each other in the housing (9) of the burnishing roller head (10) and are mounted in such a way that they can rotate about a common horizontal rotational axis (18) in the housing (9) of the burnishing roller head (10). Said burnishing rollers (11, 12) respectively comprise, on the outer peripheral edges (22) thereof opposing each other, a rotating rounded projection (21) which enlarges the diameter of the respective burnishing roller (11, 12) by a pre-determined measure (24), the axial width of the burnishing roller (11, 12) extending simultaneously over a section of the projection close to the edge.

Abstract: This tool is for processing wheel tire profiles for wheels (5) on a railway vehicle wheelset on a wheelset lathe that has a cylindrical or mushroom-shaped cutting tool (22) made from a hard material, such as carbide or cutting ceramics, that is fixed to a tool holder (23) which is positioned in a tool support that can be moved into the x and z axes of the wheelset lathe. The tool holder (23) is aligned below an acute angle (?) of a tangent (33) to the circle of a cut and at a level (4) perpendicular to the wheel tire profile. It is also able to be turned and moved along its longitudinal axis (31).

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.

Abstract: A measuring device on at least one rail of a railway track for measuring the roundness of an individual railway vehicle wheel during running thereof on the rail as a difference of the circumferential radius of the wheel flange top and the radius of the running tread of the railway vehicle wheel in a measuring plane can include a plurality of measuring sensors. The plurality of measuring sensors can have a lateral distance from one another and are connected to the rail in the measuring plane along the axis of rotation of the railway vehicle wheel or the set of wheels and perpendicularly to the contact surface of the respective railway vehicle wheel.

Abstract: The present invention relates to a method for reprofiling wheel disks (7) or brake disks of a railway wheel or wheelset (6), rotatably mounted in bearing housings (9), by machining using a machine tool (12), which is designed to be portable, a wheel disk (7) of the railway wheel or the wheelset (6) being pressed against backup rolls (16) on its circumference by a clamping element (14, 15), which engages on at least one bearing housing (9), at least one of the backup rolls setting the railway wheel or the wheelset (6) into rotation, while simultaneously a tool (20) machines one of the wheel (7) or brake disks. The invention also relates to a machine tool (12) for carrying out the method.

Abstract: The invention relates to a deep-rolling roller head (1) of a deep-rolling tool for deep-rolling, by means of deep-rolling-rollers (2), radii or recesses (3) on the main (4) and lifting bearing journal of a crankshaft, while the crankshaft rotates in a rotational direction (5). The deep-rolling roller head (1) has a prismatic, flat, approximately rectangular housing (6) on whose one front side (7), which faces the bearing journals (4) to be deep-rolled of the crankshaft, two roller cages (8, 9) are provided. The roller cages (8, 9) each have first front sides (10, 11), which are at a mutual distance (12) from each other and at the same time at a distance (13, 14) from the longitudinal center (15) of the housing (6). The roller cages (8, 9) have recesses (16), in which deep-rolling rollers of (2) are loosely rotatably guided in a removable manner with play.

Abstract: The invention relates to a deep rolling roller head (1) of a deep rolling tool for deep rolling radii or recesses (22) on the main and lifting bearing journals of crankshafts (21). Said deep rolling roller head is equipped with a housing (2) inside of which one or two laterally interspaced deep rolling rollers (4) are rotationally guided in a loose manner and with little play in two roller cages (5, 6). The roller cages (5, 6) are fastened to supports (15) on the face (3) of the housing (2) oriented toward the crankshaft (21). Said supports support the roller cages (5, 6) on their faces (10) oriented away from the deep rolling rollers (4) while laterally guiding them at the same time. The face (3) of the housing (2) oriented toward the crankshaft (21) is provided, on both ends thereof, with a projection (11, 12) for supporting each of the roller cages (5, 6).

Abstract: The invention relates to a measuring device on at least one rail (4) of a railway track for measuring the roundness (7) of an individual railway vehicle wheel (1) during running (3) thereof on the rail (4) as a difference (8 to 9) of the circumferential radius of the wheel flange cap (5) and the radius of the running surface (2) of the railway vehicle wheel (1) in a measuring plane (17). The measuring device consists of a plurality of measuring sensors, which respectively have a lateral distance from one another and are connected to the rail (4) in the measuring plane (17) along the axis of rotation (6) of the railway vehicle wheel (1) or the set of wheels and perpendicularly to the contact surface (10) of the respective railway vehicle wheel (1).

Abstract: The invention relates to a deep-rolling roller head (1) of a deep rolling tool with deep-rolling rollers (2) that are rotatably mounted in roller cages (3) and are at a distance (4) from the center (5) of the underside (6) of the housing (7) of the deep-rolling roller head (1) and are supported on the front (8) at the end of the long leg (9) of two L-shaped holding devices (11) that can be adjusted and fixed in the direction of the center (5). A first screw (13) enters an oblong hole (12) in each long leg (9) to hold the L-shaped holding device (11) on the underside of the housing (7) while a second screw (14) passes through a bore (15) in each short leg (10 and enters a bore (26) in the adjoining front (21) of the housing (7), being provided in order to adjust the precise position of the roller cage (3) relative to the center (5).

Abstract: The invention relates to a deep-rolling roller head (1) of a deep-rolling tool for the deep rolling of radii or undercuts (22) on the main and stroke journals of crankshafts (21), with a housing (2) in which one or two deep-rolling rollers are tracked with little clearance and are loosely rotatable in a roller cage (5) at a lateral distance from each other. The roller cage (5) is attached to underside (3) of the housing (2) towards the crankshaft (21) by means of pins (15) which support the roller cage (5) on its face (10) away from the deep-rolling rollers (4) and at the same time track them laterally. The housing (2) is provided with a projection (11, 12) for the support of the roller cage (5) on either end of its underside (3) towards the crankshaft (21). Pins (15) serving as fastening and tracking elements of the roller cage (5) are provided and engage the roller cage (5).

Abstract: The present invention relates to the deep rolling apparatus (8) of a deep rolling machine 1 for crankshafts (3) in which two arms (9, 10) across from each other support a deep rolling head (13) or a support roller head (14). The support roller head (14) has two support rollers (21, 22) with parallel axes and the deep rolling head (13) has two work rollers (23, 24) entering the radii or fillets of the main bearing or crank pin journals or journals of the crankshafts (3). In one embodiment of the deep rolling apparatus (8) in scissor-like construction an axial guide roller (27) is provided on the deep rolling head (13) and is centered relative to the deep rolling head (13), its axis of rotation being perpendicular to the axis of rotation of the crankshaft (3). The axial guide roller (27) has a diameter that is slightly smaller than the distance between two oil collars (25, 26) of a main crank pin journal (5) of the crankshaft.

Abstract: The invention pertains to a method for deep-rolling radii or fillets (2) at the transition between the bearing journals (3) and the adjacent flange (4) of a bearing point of a crankshaft (1) with the aid of deep-rolling cylinders. The deep-rolling cylinders are pressed into the radius or the fillet (2) of the transition with a deep-rolling force until a predetermined roll-down depth (10) is reached while the crankshaft (1) is turned. The transition is initially deep-rolled with a first deep-rolling cylinder, the radius (6) of which has an osculating ratio between 1 and 0.85 referred to the radius of the transition or the fillet (2), namely with a first deep-rolling force that produces a maximum internal compressive stress (7) in the transition at a depth between 1 and 2 mm below the deep-rolled surface (8).

Abstract: The fixed roll apparatus (8) of a fixed roll machine (1) for crankshafts (3) is constructed scissors-fashion. Two pivotable scissor arms (9 and 10) disposed opposite one another each bear a fixed roll head (13) and a support roll head (14) respectively. The support roll head (14) has two axis-parallel support rolls whose axes of rotation lie in a common plane. The support roll head (14) also has an axial guide roll which is disposed in front of the support rolls in the pivoting direction (35) for closure and whose axis of rotation is perpendicular to the axis of rotation of the crankshaft (3) and lies in a plane which forms an acute angle with the common plane of the axis of rotation of the support rolls, its diameter being larger than the width of the support roll head (14) and slightly smaller than the spacing of the adjacent oil collars of a main bearing pin or a connecting rod bearing pin.

Abstract: An apparatus (5) for the deep rolling of recesses (4) and radii of crankshafts (1). The deep rolling is accomplished with the aid of deep-rolling rollers (8) which, during revolution of the crankshaft (1), penetrate into the recesses (4) or radii of the crankshaft (1) under application of a deep-rolling force and at an angle of approximately 35° and bring about a deformation in the crankshaft (1) itself. According to the invention, the depth of penetration of the deep-rolling rollers (8) in the crankshaft (1) is measured in the radial direction and the magnitude of the deep-rolling force is regulated as a function of the measured penetration depth in such a fashion that in the course of at least one revolution of the crankshaft (1) a plastic deformation corresponding to a predefined rolling depth is obtained at least at one of the two recesses (4) or radii of a relevant journal bearing (2) after the deep rolling.

Abstract: The invention relates to a device for fixed-rolling radii or recesses on main (1, 2, 3, 4, 5) or connecting rod bearings (1′, 2′, 3′, 4′) of crankshafts (6) by means of fixed rollers and supporting rollers on the respective main (1, 2, 3, 4, 5) or connecting rod bearings (1′, 2′, 3′, 4′) to support the rolling force exerted on the crankshaft (6) by the fixed rollers. A device is provided for applying an additional external load (12) in the direction of the load on the crankshaft (6) that arises during operation while fixed-rolling the radii or recesses.