Abstract:
The present disclosure relates to a rail vehicle that includes a chassis and a rail milling assembly coupled to the chassis. The rail milling assembly includes a bracket for coupling the rail milling assembly to the chassis and a milling workhead forming a portion of the rail milling assembly. The milling workhead including a spindle and a cutter depending downwardly from the spindle. The spindle and cutter are driven by a spindle motor. The milling workhead further includes a cylinder rod disposed between the spindle motor and the spindle to thereby bias the cutter towards the rail during operation.
Abstract:
A machine tool head for machining internal surfaces of a cavity defined by a monobloc caliper for a disc brake assembly. The tool head is an angle head comprising a cutter for machining said internal surfaces and a drive train configured to connect the cutter to an actuator. The cutter comprises a first cutting edge configured for cutting as the tool head is moved in a first direction and a second cutting edge configured for cutting as the tool head is moved in a second direction.
Abstract:
A system for reprofiling a wheel set of a railway vehicle allows the center of rotation of the wheel set to move relative to supporting rollers. A cutting tool used to reprofile the wheel profile on a wheel set is moved relative to the center of rotation of the wheel set to maintain a constant distance between the center of rotation and the cutter. The rollers are maintained in a fixed position during the cutting process. The system avoids mechanically forcing a constant location of the wheel set relative to the center of rotation.
Abstract:
The present application provides a device for correcting an aluminum alloy wheel, which is mainly composed of a frame, an expansion cylinder, a correction motor, a feed motor and the like. A hub positioning unit initially positions a hub to prepare for positioning a center hole expansion sleeve; a hub feed unit performs precise center hole positioning on the hub and completes upward feed movement of the hub; and a tool correction unit completes hub correction through a rotating standard correction cutter head. The device may meet the process requirements of wheels in flow production, improve the runout and balance qualified rate of products, and solve the problems of decentraction of the outer diameter in the first procedure and the second procedure and deformation of rim bulges.
Abstract:
A wheel correction device includes a lower correction system, a support detection system, a synchronous clamping rotation system, upper correction systems, an upper lifting clamping drive system, a lower lifting drive system, etc. The wheel correction device can be used for not only correcting the axial and radial deformation of a wheel but also adjusting the correction way according to the type of radial deformation, and has the characteristics of high automation, powerful function, advanced technology, strong versatility and high safety and stability.
Abstract:
Disclosed is a wheel front burr removing device, comprising an upper servo motor, a right support plate, a right slide plate, right guide rails, a right cylinder I, a right cylinder II, a right driven conical friction wheel, a rim burr cutter, a right workbench, a right shaft, a mandrel and the like. Rim burrs are removed on the right station while cap section burrs are removed on the left station, double stations are adopted for machining, so the efficiency is very high.
Abstract:
A method of recutting the surface of a wheel includes mounting the wheel on a rotatable mount, moving a probe across the surface of the wheel between an outer radial position and an inner radial position to obtain a radial surface profile and rotating the wheel about its axis on the rotatable mount. During rotation of the wheel, the position of a cutting tool with respect to the surface of the wheel is controlled to recut the surface of the wheel in accordance with the cutting profile. The wheel is tagged with a unique wheel identifier, and the unique wheel identifier is recorded into a database in association with an indication of an amount of material which has been removed from the surface of the wheel.
Abstract:
A core of a non-pneumatic tire is configured to have a tread formed thereon. The core may include an inner circumferential portion associated with a hub, and an outer circumferential portion radially spaced from the inner circumferential portion. The core may further include a support structure extending between the inner circumferential portion and the outer circumferential portion. The support structure may include a plurality of first ribs, and at least some of the first ribs at least partially form cavities in the support structure. The core may also be substantially absent of tread, such that an outer circumferential portion has a radially outward facing surface having a substantially constant diameter spanning between side edges of the outer circumferential portion.
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:
A technique for aligning a wheelset using a wheelset truing machine is disclosed. Using the technique, the wheelset may be aligned by roughly aligning the wheelset truing machine, placing each wheel of the wheelset on at least one roller, determining the distance of tread points on each wheel on the rollers relative to the center of revolution of each wheel by forming measurements and calculations, and coinciding the center of revolution of each wheel with the corresponding setpoint of the machine center. The measurement is taken of the periphery and of the concentricity error and a distance of the tread points determined by the triangulation principle. The technique includes a wheelset aligning device having a locating fixture for locating the wheelset, a measuring device including a-peripheral measuring instrument and a concentricity error measuring instrument, at least two rollers disposed to be swiveled in a x-y plane and to be traversed in a direction perpendicular to the x-y plane on the wheel side of the wheelset to evaluate a respective wheel measurement in the x-y plane by interacting with the wheel thus allowing for coincidence between the respective center of revolution of the wheel and the respective setpoint of the machine center.