摘要:
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.
摘要:
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. The truing machine is an under-floor machine equipped with sensors for sensing the excursions and with a central computerized control for producing correction signals from excursion signals to control the wheel guide roller power drive.
摘要:
An underfloor wheelset turning machine for reprofiling the wheel tire contours of railway wheelsets comprising two driven friction roller pairs each adapted to be pressed against a wheel tire contour of a wheelset, the friction rollers of each friction roller pair being individually connected in each case to a pivot drive and each pivotal about a pivot axis arranged parallel to the wheelset axle, is distinguished for uniform application of the friction rollers and automatic alignment of the wheelset axle in that each pivot drive (13, 14, 15, 16) comprises a pneumatic bellows cylinder (76, 77, 78, 79) for producing the pivot movement and that in each case two pivot drives (13, 14, 15, 16) associated with a friction roller pair (11, 12) are coupled to a synchronizing means (80, 81).
摘要:
An underfloor wheel set barring machine for retreading of wheel rim circumferences of railroad wheel sets. Two driven pairs of friction rollers can be pressed against a wheel rim circumference with the friction rollers of each pair being arranged to pivot parallel to the axis of the wheel set. A drive motor has first and second smooth belt drives having a common drive wheel driven by the motor. Each belt drive has an output wheel driving an input gear of a spur gear system. Two spur gear systems have upward members respectively driving the friction rollers. The output of each belt drive is coaxially arranged with the axis of its associated friction roller.
摘要:
A method is described for resurfacing a steel tire of the type that encircle a material processing drum and is supported upon rollers journaled for rotation below the drum. A cutting tool is mounted below the drum. If out of round, the tire is first trued to approximate a cylinder. While the drum rotates, the tool is advanced across the outer surface of the tire along a first path from a beginning point at one edge to remove a portion of the material from the tire but without producing a finished surface as the drum settles down onto the rollers. A second cut is made, preferably in the reverse direction. A third cut is then preferably made from the point of beginning to the center to produce a finished surface. The invention also provides a resurfacing apparatus which includes a base upon which is supported a tool backing plate and an adjustable tool holder mounted on a slide plate connected to the backing plate. A feed screw is operatively connected between the slide plate and the tool holder to advance the tool along a fixed path across the tire.
摘要:
A machine for reprofiling wheels of rail vehicles includes, for each wheel of a wheel set, a pair of support rolls arranged spaced from each other in a plane normal to the axis of the wheel set. The peripheral surface of each support roll has an axially extending carrying zone and an axially extending transfer zone following the carrying zone in a direction toward the center plane of the wheel set and being inclined with respect to a horizontal line through an angle greater than the angle included between the desired profile to be machined into a portion of the wheel opposite the transfer zone and a horizontal line.
摘要:
A pit-mounted turning lathe for the wheels of wheel assemblies in railroad vehicles has a single driving roller for each of the two wheels of a wheel assembly and an adjustable cutting tool for each wheel. The driving rollers engage the respective wheels at one side and the tools engage the respective wheels at the other side of a vertical symmetry plane which includes the axis of the axle of a wheel assembly at the treating station above the pit. The wheel assembly is positioned and held by locating devices which engage the wheels and/or the journal boxes of the wheel assembly and act in three different directions. The driving rollers are pivotable with one-armed levers and rotate the wheels in a direction to produce forces having components acting downwardly in the vertical symmetry plane. The rails along which a wheel assembly travels toward and away from the treating station include rail sections which are pivotable about horizontal and vertical axes, and rail sections which are movable lengthwise. Prior to being engaged by the locating devices, a wheel assembly is centered by two pairs of projections which temporarily engage the wheels and serve to move the axis of the axle into a horizontal plane as well as to position the axis of the axle in the aforementioned symmetry plane so that the axis is normal to the longitudinal directions of the rails.
摘要:
An apparatus reconfigures or configures 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. The compound slide system is controlled so that the wheel is configured in accordance with a profile. The slide system can be moved mechanically and/or pneumatically and/or can use a mechanical profile. The apparatus can have a low profile and a low weight.
摘要:
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.