摘要:
The invention provides a design solution for a suspension system of a railway vehicle, especially four-wheel freight car, that assures the system functioning at possibly low rolling resistance; at the same time this is solution assures that wheel sets can be correctly aligned in relation to tracks and stabilized, owing to which increased rolling resistance and wear-and-tear of both the wheel sets and rails is reduced. The objective has been achieved in such a way that in order to reduce friction resistance, rollers (9), preferably up to two of them, were incorporated in friction wedges (6) on a sloped surface, while other surfaces were provided with friction lining pads (7) and (8). Working surfaces of the wedge (13), also mating surfaces of the base plate (1) and saddle column (5) were provided with friction pads (7) of a material having low friction factor, below 0.2. For better stabilization of the suspension system, the crosswise rigidity of spring sets (2) was enhanced, and rigidity of conventional spring sets was increased by dividing the springs with a plate (10) at half height. Further increase of the spring system rigidity was achieved by connecting the dividing plates (10) from adjoining spring sets (2) to each other, and joining the matching connected plates (10) on both sides of a car by use of stabilizing rods (12).
摘要:
A friction wedge assembly for use in a suspension system of railroad car trucks. The friction wedge assembly (10) comprises a cast metal wedge (1) having a bolster engaging surface (2), a truck side frame engaging surface (4) and a surface (6) disposed between the bolster engaging surface and the truck side frame engaging surface for engaging a spring that provides the load on the friction wedge assembly. There is a metal bonding matrix (8) disposed on the truck side frame engaging surface of the wedge and a composition liner (12) having a first side engageable with the metal bonding matrix and a radially opposed second side for engaging a metal wear liner on a side frame of such railroad car truck.
摘要:
The invention relates to a rail-born vehicle comprising a truck (200) and axle guides arranged thereon. Each guide is provided with at least two coil springs connected to the body of an axle box. The inventive coil springs (2, 2') are arranged on the opposite sides of the axle box, the elongation of said coil springs (2, 2') extends in a vertical direction with respect to a rail plane (ε), and at least one elastomer spring element (1, 1') disposed above or below of the coil spring is connected to each coil spring (2, 2'). The spring element (1) connected to the first coil spring (2) which is connected to the axle box is arranged above said first coil spring (2). The spring element (1') connected to the second coil spring (2') which is arranged on the side of the axle box opposite to the first coil spring (2) is arranged below of the second coil spring (2').
摘要:
The invention relates to the running gear of a rail vehicle, comprising a transversal stop between the frame and the axle bearing housing (3), said stop (25) acting on the inner side of the curve. The stop (25) can be configured as a rigid stop (25), with air between it and the axle bearing housing (3), or as an elastic play-free stop. The advantage of the invention is that the transversal forces created by the rocking of the frame and those created during the traversing of the curves are not added together.
摘要:
A side frame (8) for a railway car comprises a pedestal jaw (10) and an integral crown shaped pedestal jaw roof (20). A snap-on liner (28) matching the shape of the crowned pedestal jaw roof (20) is removably mounted to the pedestal jaw roof (20). In operation, the crown shaped pedestal jaw roof (20) and snap-on liner (28) reduce wear on the pedestal jaw roof (20) and permit swinging of the side frame (8) relative to railcar axles. The integral crown shaped pedestal roof (20) and snap-on liner (28) eliminate the traditional rocker seat, shims, and welded retainers, thereby reducing the maintenance and cost of traditional side frames.
摘要:
An integrally cast bearing adapter arrangement is provided in the pedestal of a railcar bogie side frame, which side frame (12) is cast with a pedestal jaw (24) having a roof (62), and vertical walls of a first (84) and second (86) leg which roof and walls operate as a bearing adapter (80) to receive and grasp a bearing assembly outer surface (56) at a horizontal diameter (90) of said bearing assembly for an axle end without introducing the manufacturing and assembly tolerances from discrete component assemblies, thereby avoiding the lateral displacement associated with the added tolerances and operating to minimize angular displacement between each mated axle and side frame.
摘要:
A sideframe pedestal jaw (50) accommodates a bearing adapter (70) which locks the adapter (70) to the sideframe (12), thereby preventing it from all forms of movement within the pedestal jaw opening (35). Locking the bearing adapter (70) forces the bogie axles (16) to remain at a right angle with respect to the sideframes (12). Maintaining this right angular relationship substantially curtails bogie warpage, which induces wheel misalignment that leads to undesirable bogie hunting and high speed instability.
摘要:
A railway goods wagon essentially has a loading platform (1) and two single-axle (15) or two double-axle running carriages (6-9) with fixedly clamped sets of wheels (8). The loading platform (1) is mounted on the single-axle (15) or double-axle running carriages (6-9) by means of carrying leaf springs (4). The single-axle (15) or double-axle running carriages (6-9) are guided under the loading platform (1) only by vertical guiding elements (10) or axle holder bars (18) arranged on the loading platform (1) and by the axle boxes (16) of the single axles (15) or the frame (7) of the double-axle running carriage. The single-axle (15) or double-axle running carriage (6-9) can thus be vertically moved, can pivot horizontally over a limited angle and can be transversally moved in relation to the loading platform (1). The aim of the invention consists in designing a railway goods wagon that can be driven under goods to be loaded, in particular interchangeable containers, the loading platform (1) of which can be lifted and lowered again into the running position once the goods to be loaded have been deposited onto the loading platform (1), and that can be loaded and unloaded without the need for loading machines extraneous to the wagon. For that purpose, lifting elements are arranged between the axle box cases (16) of the single-axle (15) or the frame (7) of the double-axle running carriage (6-9) on the one hand and the carrying leaf springs (4) on the other hand. The loading platform (1) with the carrying leaf springs (4) can be lifted in relation to the single-axle (15) or double-axle running carriage (6-9) by means of these lifting elements (13).