175results about "Rail engaging elements" patented technology

A rail road freight car truck has a truck bolster and a pair of side frames, the truck bolster being mounted transversely relative to the side frames. The mounting interface between the ends of the axles and the sideframe pedestals allows lateral rocking motion of the sideframes in the manner of a swing motion truck. The lateral swinging motion is combined with a longitudinal self steering capability. The self steering capability may be obtained by use of a longitudinally oriented rocker that may tend to permit resistance to deflection that is proportional to the weight carried across the interface. The truck may have auxiliary centering elements mounted in the pedestal seats, and those auxiliary centering elements may be made of resilient elastomeric material. The truck may also have friction dampers that have a disinclination to stick-slip behaviour. The friction dampers may be provided with brake linings, or similar features, on the face engaging the sideframe columns, on the slope face, or both. The friction dampers may operate to yield upward and downward friction forces that are not overly unequal. The friction dampers may be mounted in a four-cornered arrangement at each end of the truck bolster. The spring groups may include sub-groups of springs of different heights.

An automatic car wash system is provided for processing multiple vehicles simultaneously. The system according to one embodiment includes an elongate path, a plurality of stations for processing the vehicle, at least two detectors for indicating the presence of the vehicles. The system provides instructions to the drivers of the vehicles so that the vehicles travel through the system under their own power, and thus conveyor systems can be avoided, yet throughput remains high. In one embodiment, the system includes a radio transmitter that is operable to direct specific information to each of the vehicles via radio signals.

The invention concerns an inter-axle shear stiffening apparatus for a self-steering rail bogie and a self-steering rail bogie equipped with such apparatus. The apparatus has axle structures including axles (16, 16.1) which are journalled in axle box bearings (20, 20.1). Radial arms (30, 30.1) are connected rigidly to respective axle structures of the bogie an extend towards one another in a fore and aft direction. A lateral force transmitting device (60) acts between the arms to transmit lateral forces between them while accommodating relative lateral movement between them. The design of this device is such that, irrespective of the extent of relative movement between the arms, the device can only transmit between them lateral forces of limited, predetermined magnitude. This value is chosen such that the bogie is provided with sufficient inter-axle shear stiffness to enhance its hunting stability without excessive force couples being applied to the axle box bearings.

A camera positioning system comprising a track having two parallel outer rails and a center rail, a self-propelled camera positioning device comprising a chassis configured to support a camera, wheels coupled to the chassis for riding on the outer rails of the track, and a drive unit for propelling the chassis along the track, said drive means comprising at least one roller coupled to the chassis for engaging the center rail of the track, and a motor for rotating said at least one roller against the center rail, thereby positioning the chassis along the track; and a control logic for controlling the drive unit.

A secondary suspension for a rail vehicle includes a superstructure, a bogie and a steel spring arranged between the superstructure and the bogie. The steel spring ensures at least one raised traveling level for the superstructure when the rail vehicle is traveling. Further included is a tension cylinder. When the rail vehicle is stopped, the steel spring is compressed by the tension cylinder to adjust the superstructure to a lowered station platform level below the at least one traveling level.

A monorail bogie for supporting a monorail car travelling over a monorail track. The monorail bogie comprises a load-bearing wheel having an axis of rotation that is parallel to the running surface. The monorail bogie further comprises an inboard pair of guide wheels and an outboard pair of guide wheels. Each guide wheel of the inboard pair of guide wheels has an axis of rotation and each guide wheel of the outboard pair of guide wheels has an axis of rotation. The axes of rotation of the inboard pair of guide wheels and the axes of rotation of the outboard pair of guide wheels are offset in opposite directions in relation to the axis of rotation of the load bearing wheels. The monorail bogie further comprises at least one stabilizing wheel positioned co-axially with each one of the inboard pair of guide wheels.

An intermodal transportation system having interconnected railcars adapted for transporting interconnected freight trailers where the freight trailers remain connected while being transported on the railcars. Individual trailers are assembled into trailer assemblies at an assembly area. Trailers containing freight are assembled into trailer assembles using specialized dollies. A preferred embodiment includes using a self-powered dolly having tires and mounting a fifth-wheel pickup plate and a ring coupler for engaging the kingpin of a trailer. Multiple dolly-trailer assemblies are connected together to form a trailer assembly. A self-powered movable ramp is positioned at an end of the railcar assembly and a tractor pulls the trailer assembly onto a railcar assembly by driving up a self-powered movable ramp and across the top of the railcars.

A bogie for a vehicle of a guide rail type which is guided by guide wheels that rotate while keeping contact with a guide rail arranged along a guideway of the vehicle, comprises: a guide frame which includes a pair of transverse beams and a connecting member arranged between the pair of the transverse beams, each of the traverse beams being equipped with the guide wheels rotatably on both ends thereof; an axle which is supported on a non-turning part of the bogie such that the axle is capable of turning; and running wheels which are attached to both ends of the axle, wherein the running wheels are rigidly fixed to the axle and the guide frame is fixed to the axle so as to steer the guide frame, the axle and the running wheels integrally.

The present invention includes a track (1, 101) of a track system with straight, transition, curved, and switch track sections. The invention further comprises bogies (40) for vehicle cabins suspended under the track. Track sections of the track have an upper rail (1) and one or two lower rails (101, 201). Further, a bogie (40) has fore and aft sets of upper guide and switch wheels (151, 251, 154, 254), and one set of lower guide and switch wheels (152, 153, 252, 253, 156, 157, 256, 257). The bogies (40) also have one left and/or one right load bearing wheel (150, 250) and one drive wheel facing upwards and engaging a downwards directed drive wheel running surface (15) of the upper rail. Each set of lower guide wheels consist of left and right wheel pairs (152, 153, 252, 253) so that transition sections can be passed without moving any parts of the bogie (40). Switch wheels (154, 254, 156, 157, 256, 257) are separated from guide wheels so that they can be positioned according to the preferred direction of travel well before reaching a switch.

A traction control assembly for connection between a monorail bogie frame and a monorail car. The traction control assembly comprising a first traction link pivotally connected to a first bell crank mechanism and a second traction link pivotally connected to a second bell crank mechanism. The first traction link and the second traction link are capable of absorbing traction forces applied to the monorail bogie. The traction control assembly further comprises a cross link interconnecting the first bell crank mechanism and the second bell crank mechanism and a passive steering assist device interconnecting the first bell crank mechanism and the second bell crank mechanism. The steering assist device causes the traction control assembly to insert shear forces on the monorail bogie during travel of the monorail bogie over a curved section of monorail track for facilitating rotational motion between the monorail bogie and the monorail car.

Truck assemblies, systems and methods are provided for transferring weight supported by various wheels, and axles. The vehicle suspension method includes operating the suspension in a first mode with a first effective suspension spring rate; and operating the suspension in a second mode with a second, different, effective suspension spring rate.

There is disclosed a method for compensating for wheel wear to maintain a constant car floor height above the railroad track where the compensating shim is at all times attached to the railway truck. The method comprises generally the steps of providing a wheel wear compensating shim that, when not being used, is removably attached to the underside of the bearing housing or other suitable location, lifting of the side frame away from the primary suspension, disposing the compensating shim between the side frame and the primary suspension, and finally lowering the side frame back onto the shim and primary suspension. The railway truck can thus be shimmed for wheel wear at any location where the side frame and accompanying car body can be lifted without the need to take the railcar to a retrofit service shop.

A motor bogie for a rail vehicle having an integral low-slung floor, the motor bogie having a frame resting on four wheels via a primary suspension, said frame supporting at least one motor disposed on one side of the frame and connected to at least one wheel via transmission means, wherein each wheel has an individual wheel shaft supported by an axle box, and wherein said transmission means comprise a gear unit coupled directly to the shaft of said wheel and a telescopic transmission of the type having a double universal joint and disposed between the gear unit and the motor, said gear unit being placed outside the wheel, and having a casing incorporating the axle box of the shaft of the wheel, said casing of the gear unit serving as a support element for supporting a primary suspension member on which the frame bears.

An improved sideframe has a bolster opening configured to accept a variety of spring group and friction shoe assembly designs. The bolster opening is defined by a bottom section, a top compression member, and two opposing column members and has two column wear plates each secured to the opposing column members. The bottom section of the bolster opening defines a spring seat. The dimensions of the bolster opening of the sideframe allow for a variety of freight car truck suspension systems including the spring group, bolster and friction shoe used therewith.

An improved bogie control arm for steering wheels and axles of bogies comprising of two pairs of C-type control arm made out of rolled steel channel section which has been flared by splitting the web and thereafter welding profile cut steel plates, two pairs of fabricated adapter is connected to said control arm by means of welding or rivetting, the fabricated adapter is provided with rubber spring as primary suspension, the two pairs of ‘C’-type control arms are connected to each other by means of cross struts and pins.

A low floor vehicle reduces, when the vehicle enters a curved track, the lateral force of the vehicle, prevents occurrence of vibration and creaking sounds of the vehicle, improves riding quality of passengers, and reduces wear of wheel flanges. A low floor vehicle includes a bogie frame 9 of a bogie 7, a pair of bogie frame cross beams 9a arranged along a vehicle lateral direction in the middle of a vehicle longitudinal direction of the bogie frame 9 and arranged spaced apart from each other in the vehicle longitudinal direction, and a pair of wheels 8 provided in each of a vehicle front edge direction and a vehicle rear edge direction with respect to the pair of bogie frame cross beams 9a of the bogie frame 9 and configured to travel on a track 1. A pair of flexible traction rods 15 arranged along the vehicle longitudinal direction and configured to be capable of extending and retracting in the vehicle longitudinal direction are provided in the bogie 7, the pair of flexible traction rods 15 are arranged spaced apart from each other in a vehicle lateral direction, one ends 15b of the flexible traction rods 15 are attached to the bogie frame cross beams 9a, and the other ends 15c of the flexible traction rods 15 are attached to a receiving section 6c of in the vehicle body 6, and the bogie 7 is configured to be capable of turning with respect to the vehicle body 6.

The invention discloses an anti-rolling decoupling mechanism of a magnetic levitation vehicle walking unit, which aims to reduce the mutual influences of anti-rolling and decoupling, improve an anti-rolling capability and a decoupling capability of the walking unit and improve a bent channel passing capability of the magnetic levitation vehicle walking unit. The technical scheme is that the anti-rolling decoupling mechanism is formed by a middle beam, two pieces of anti-rolling beams, two hanging rods and two sets of spherical hinge linearly combined bearings or spherical hinge bearings, which are distributed on a middle section of the walking unit along a direction which is vertical to a rail to be integrally connected with two suspension modules to form an H-shaped arrangement. The middle beam is in a left-right spherical hinge symmetrical structure; and the anti-rolling beams, the hanging rods and left and right structures of the spherical hinge linear combined bearings are the same and are symmetrically distributed relative to the central face of the rail. According to the anti-rolling decoupling mechanism of the magnetic levitation vehicle walking unit, the mutual restriction between the anti-rolling and the decoupling can be reduced; and the walking unit is applicable to a higher bent channel car speed and the bent channel passing capability of a magnetic levitation vehicle is improved.

A steerable truck for a railway car is provided with a truck frame that is steered so as to be aligned with the tangential direction of a curved track by controlling only the steering angle of a rear wheelset. During travel along a curved track, the steering angle, which is the angle in a horizontal plane of the centerline of the rear wheelset with respect to an imaginary straight line connecting the center of the truck frame and the center of the curved track, is larger than the steering angle which is the angle formed between the imaginary straight line and the centerline of the front wheelset. As a result, a steerable truck for a railway car which has excellent ability to travel along a curve and which can be actually realized simply and at a low cost is provided.

This invention is equipped with: a steering shaft provided to an underframe of a carbody of a vehicle travelling on a traveling road surface of tracks; king pins provided as a pair to end sections of the steering shaft at both sides in the width direction; axle hubs swingably provided to the steering shaft via the king pins; tires mounted plurally to each of the axle hubs; guide wheels, which roll over guide rails provided to the tracks in the direction of extension of the tracks, and which are guided from the width direction of the tracks; a guide device part for supporting the guide wheels and the steering shaft; and a steering mechanism for causing the axle hubs to turn about the king pins in accordance with the displacement of the guide device part.

The invention discloses a multifunctional operation trolley for a contact line and an operation method thereof, wherein the multifunctional operation trolley for the contact line comprises a front axle, a back axle and a working platform, wherein the front axle is connected together with the back axle through a chassis; a guide wheel supporting mechanism I is arranged on the chassis and further at a position located on one side of the front axle; a guide wheel supporting mechanism II is arranged on the chassis and further at a position located on one side of the back axle; the working platform is connected together with the chassis through a leveling mechanism; the leveling mechanism is used for adjusting the levelness of the working platform during operation or walking; telescopic rotary operation arms are also arranged on the working platform; and an overturn preventing mechanism for preventing generating an overturn during the operation or the working is arranged on the chassis. The multifunctional operation trolley for the contact line is complete in functions, simple in structure, simple and convenient to operate and low in procurement cost and maintenance cost.