摘要:
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).
摘要:
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.
摘要:
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.
摘要:
A method and apparatus measure or gage worn railroad wheel profiles for the purposes of ascertaining the location of the new profile relative to the worn profile. The new profile is to be produced by a reprofiling operation such as a truing. For this purpose characteristic points on the worn profile are contacted in a radial and axial direction by a sensor and the respective displacement of the sensor is measured or gaged relative to a zero or null point. The location of the sensed points is then compared in a computer with a given reference location on a corrected profile. The corrected profile is then contacted with the sensed or gaged point which will make it possible to restore a correct profile with the least possible material removal in a milling or machining operation. In the apparatus for performing this method the sensor for the contacting or gaging of the worn points is preferably supported on a cross-slide enabling the sensor to perform a sensing movement in the axial direction and in the radial direction, preferably under a computerized numerical control.
摘要:
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.
摘要:
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).
摘要:
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. Measurement devices (20, 21) are provided on the base (5) that detect the lift of each of the cylinders (12, 13) and are 4 connected to a control device (22) provided for regulating the loading of the cylinders (12, 13) with pressure medium as a function of the lift thereof.
摘要:
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.
摘要:
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. This machine tool (12) has a portable support frame (11) having a clamping element (14, 15) for engaging on a closed inner and/or outer bearing housing (9) of the railway wheel or wheelset (6), and at least one backup roll (16), which may be pressed against the outer circumference of the wheel disk (7), on whose bearing housing(s) (9) the clamping element (14, 15) engages, at a mutual distance to one another opposite to the clamping element (14, 15), a drive for at least one of the backup rolls (16), and a tool (20) for machining wheel (7) or brake disks (23) of the railway wheel or wheelset (6).
摘要:
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.