Abstract: One embodiment relates to an apparatus for configuring a wheel associated with a train. The apparatus comprises a tool configured to engage the wheel a compound slide system for positioning the cutting tool in at least two axes and a computer control coupled to control the compound slide system. The compound slide system is controlled so that the wheel is configured in accordance with a profile. An alignment device can be utilized to align the apparatus. The apparatus can have a low profile.

Abstract: A portable apparatus for configuring a wheel associated with a track is provided. The apparatus is in a fixed position with respect to a rail associated with the track when in operation. The apparatus includes a tool configured to engage the wheel, a position system for positioning the cutting tool in at least two axis, and a computer control. The computer control is coupled to control the positioning system. The positioning system is controlled so that the wheel is configured in accordance with a profile.

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 portable apparatus for configuring a wheel associated with a track is provided. The apparatus is in a fixed position with respect to a rail associated with the track when in operation. The apparatus includes a tool configured to engage the wheel, a position system for positioning the cutting tool in at least two axis, and a computer control. The computer control is coupled to control the positioning system. The positioning system is controlled so that the wheel is configured in accordance with a profile.

Abstract: A system for re-profiling a first wheel in accordance with the first profile includes a lathe cutting tool and a plate. The first wheel is associated with a train or other rail riding device. The lathe cutting tool is configured to engage the first wheel and attach to a compound slide mechanism. The plate includes supports for supporting the wheel assembly including the first wheel. The plate is attached to the compound slide mechanism.

Abstract: A portable apparatus for configuring a wheel associated with a track is provided. The apparatus is in a fixed position with respect to a rail associated with the track when in operation. The apparatus includes a tool configured to engage the wheel, a position system for positioning the cutting tool in at least two axis, and a computer control. The computer control is coupled to control the positioning system. The positioning system is controlled so that the wheel is configured in accordance with a profile.

Abstract: One embodiment of the invention relates to an apparatus for configuring a wheel associated with a train. The apparatus comprises a tool configured to engage the wheel; a compound slide system for positioning the cutting tool in at least two axes; and a computer control coupled to control the compound slide system. The compound slide system is controlled so that the wheel is configured in accordance with a profile.

Abstract: The invention relates to a device for lifting at least one wheel (3, 57) of a rail-bound vehicle, which wheel bears on a rail (5, 71) in a contact point (7, 73). The device comprises a first (9, 59, 63) and a second lifting member (11, 61, 65) adapted to be positioned on each side of the contact point of the wheel, wherein at least the first lifting member comprises a force transfer element (23, 49) comprising an oblique force transfer surface (25a, 25b).

Abstract: One embodiment relates to an apparatus for configuring a wheel associated with a train. The apparatus comprises a tool configured to engage the wheel a compound slide system for positioning the cutting tool in at least two axes and a computer control coupled to control the compound slide system. The compound slide system is controlled so that the wheel is configured in accordance with a profile. An alignment device can be utilized to align the apparatus. The apparatus can have a low profile.

Abstract: The invention relates to a device for lifting at least one wheel (3, 57) of a rail-bound vehicle, which wheel bears on a rail (5, 71) in a contact point (7, 73). The device comprises a first (9, 59, 63) and a second lifting member (11, 61, 65) adapted to be positioned on each side of the contact point of the wheel, wherein at least the first lifting member comprises a force transfer element (23, 49) comprising an oblique force transfer surface (25a, 25b).

Abstract: One embodiment of the invention relates to an apparatus for configuring a wheel associated with a train. The apparatus comprises a tool configured to engage the wheel; a compound slide system for positioning the cutting tool in at least two axes; and a computer control coupled to control the compound slide system. The compound slide system is controlled so that the wheel is configured in accordance with a profile.

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: 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: A service carriage including a device for the support of a chassis with at least two pairs of individual wheels or at least two wheel sets and which are installed in the chassis turnable around their respective axis of rotation, is designed to support the remaining wheel sets of the chassis during the machining process on a wheel set machining unit. A support is provided in a longitudinal direction at a distance from the machining tools of the wheel set machining unit, by which one of the wheel sets not being machined at the time can be received during machining.

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: A portable electric railroad rail drill apparatus includes an elongated main shaft, a support frame, an electric drill, a clamp, a handle and a support leg. The support frame is reciprocally mounted to the main shaft for movement therealong between first and second ends of the main shaft. The electric drill is fixedly mounted to the support frame and reciprocally movable therewith along the main shaft. The clamp is mounted at a location adjacent to the first end of the main shaft for mounting the main shaft to a railroad track rail such that the electric drill is disposed adjacent to the rail and movable along the main shaft toward and away from the rail and is operable for drilling a hole through the rail concurrently with movement toward the rail.

Abstract: A shaping tool for the stock-removal machining of wheelsets. The tool contains a shell-end milling cutter comprised of a disc-shaped body with a multiplicity of cutting edges which overlap each other and are disposed spirally staggered on pitch circles on such disc-shaped body.

Abstract: Wheels of rail vehicles are trued while the wheels are kept rotating about a wheel center of rotation that is continuously corrected to keep the center of rotation in a fixed position in response to eccentricities a wheel may have, especially in its outer circumference. For this purpose, a sensor for each wheel of two wheels forming a set senses a respective excursion of a center of rotation of each wheel being trued in a set to provide respective excursion signals which are supplied to a central processing unit that provides control signals to a power drive for wheel guide rollers which support the wheel set to be trued. The power drive applies wheel position adjusting force components, preferably directed radially relative to the respective wheel rotational axis in response to the control signals from the central processing unit whereby the excursions are compensated and the wheel rotation center is kept in a fixed position.

Abstract: A milling cutter for truing railroad wheels has a milling drive shaft (10) with at least two, preferably three, cutter sections (3, 4, 5). One fixed cutter section (4) is rigidly connected to the shaft (10). At least one, preferably two, cutter sections (3, 5) are axially shiftable along the shaft (10) and receive their torque drive through the fixed cutter section through a releasable coupling such as a claw clutch (9, 30). One axially shiftable section (3, 5) is positioned on each side of the fixed section (4), with a gap (22) therebetween. Preferably, the shiftable sections (3, 5) are interconnected (at 21) so that an axial adjustment of one section is synchronously transmitted to the other section and vice versa.

Abstract: In a wheelset processing operation, in which non-positive driving of the wheelset (1,1') is effected, the processing tools (2,2') act on the wheelset (1,1') at the same time in different directions such that the tangential components (3,3') of the tool forces are substantially compensated. This enables the wheelset processing time to be reduced and enables the machining accuracy to be improved.

Abstract: An under-the-floor lathe for re-machining the wheels in railroad-vehicle wheel sets. It has two assemblies for each wheel in the set. Each assembly comprises an upright, a swiveling head, an axle-bearing support, a hold-down, two friction rollers that can be positioned against one of the wheels, and a friction-roller holder. At least one of the friction rollers in each holder is powered. Each holder rotates around an axis that travels along the mid-plane of the lathe. The object is to accelerate the machining action without using brakes that engage the friction-roller holders. Two pressure-application devices that generate opposite torques in relation to their associated pivoting axis are attached to each friction-roller holder.

Abstract: The feed advance speed, or rather its scalar value, of a turning cutting tool edge is varied for a time duration which is short relative to the time duration required for one full revolution of a work piece. The varying of the scalar value of the feed advance speed takes place at non-periodic timed intervals and at least once for each work piece revolution. Thus, a simple control not requiring any enforced phase relationship between tool movements during different revolutions of the work piece, can be applied to a computer numerically controlled machine tool, such a lathe for truing railroad wheels. A work piece surface is achieved which has at least the quality of conventional work piece surfaces produced with substantially more complicated phase controls for the tool movement. Positive chip fracture is also achieved.

Abstract: A below-floor lathe for reprofiling the rims of railroad-vehicle wheel sets, with four driven friction rollers, two rotating supports, and controls. The friction rollers can be forced in pairs against the outer surface of each rim in a wheel set. A detector determines the level of slippage that occurs between a friction roller and a rim surface and varies the rate at which the rotating supports advance in accordance with the level of slippage detected.

Abstract: In connection with machine tools it is frequently necessary to directly couple the motion sequence of a tool carrier and thus of the tool carried by the tool carrier, to the r.p.m. of a work piece, in order to perform certain motion sequences for each revolution of the work piece. In connection with machine tools in which the r.p.m. of the work piece depends on the work piece diameter, for example, in underfloor wheel set turning machines or turning machines, the r.p.m. is not known. Additionally, the unknown r.p.m. changes during the work piece machining. In order to achieve a synchronization in spite of the changing unknown r.p.m., the time necessary for performing one revolution of the work piece is measured and the time measurement is converted into a control signal for influencing the motion of the movable member such as the tool carrier in such a way that the motion of the tool carrier is influenced as a function of the measured time duration.

Abstract: A mechanism for lifting a wheel set, such as a railroad wheel set, is constructed for cooperation especially with wheel truing machines for lifting a wheel set into a machining position or out of the machining position. In order to facilitate the chip removal, the lifting mechanism is tiltably mounted in a chip removal pit. In its uplifting working position a cover of the lifting mechanism substantially closes the chip pit except for the wheel carriers. In the recessed position of the lifting mechanism the cover tilts along with the lifting mechanism thereby guiding any chips accumulated on the cover onto a chip removing conveyor in the pit. For this purpose the lifting mechanism has a movable frame hinged to a stationary frame so that the hinging axis extends outside of a lifting plane passing through the rotational axis of the wheel set.