211results about "Wheel axle self-adjustments" patented technology

The present disclosure relates to a computer-implemented method for determining a real time steering angle (58) for a railway bogie (1) and to a control device (40) which is configured to perform the method, the method comprising: deter-mining by a sensor assembly at least one lateral real time sensor signal (38), which is characteristic for a lateral position of a tread of at least one wheel of the railway bogie (1) with respect to a railway track, determining, by means of a positioning algorithm (47), a real time position and / or orientation of the railway bogie (1) with respect to the railway track (31), using the received at least one lateral real time sensor signal (38) and determining the real time steering angle (58) for steering of the railway bogie (1), using the determined real time position and / or orientation of the railway bogie (1).

The invention relates to the technical field of rail traffic rack railways, in particular to a rack railway transition section tooth entering method, a control system and a medium, and the method comprises the following steps: S1, monitoring train driving information received by a train; the train running information comprises a wheel linear speed, a wheel driving speed and a rotation angle of a bogie gear; controlling a driving device according to the wheel linear speed, and adjusting the angular speed of a bogie gear to enable the linear speed of the bogie gear to be matched with the wheel linear speed; s2, after the linear speed of the bogie gear is matched with the linear speed of the wheel, real-time position information of train running is monitored; a meshing posture point is preset according to the real-time position information, the wheel linear speed and the rotation angle of the bogie gear; wherein the meshing posture point is a point position where the gear is in a meshing posture; and S3, distance information of the train running from the meshing posture point to the toothed rail section is obtained based on the meshing posture point, the gear is controlled to conduct posture adjustment according to the distance information, and gear entering is kept when the gear is driven into the toothed rail section.

The invention discloses a radial bogie for actively controlling a wheel pair to swing around the center of the radial bogie, and relates to the technical field of rail transit, machinery and control. Comprising a car type structure, a wheel set device, a rocker arm steering device, a center swing bolster device and an electric control driving device. The wheel pair devices are arranged on the front side and the rear side of the car-shaped structure and connected with the rocker arm steering devices through pin shafts, the rocker arm steering devices are symmetrically distributed on the two sides of the center swing bolster device and connected with the center swing bolster device, the center swing bolster device is connected with the center position of the car-shaped structure through a pin shaft, and the electric control driving device is connected with the car-shaped structure through a hinge. According to the radial bogie capable of actively controlling the wheel pair to swing around the center of the radial bogie, in order to enable a train to achieve the radial steering function, the kinematics principle of a multi-rod mechanism is adopted, the rail train can have better stability and safety in steering, and wheel track abrasion and noise are reduced.

The utility model discloses a guide structure for a railway vehicle, a bogie and the railway vehicle, the guide structure comprises a first rotating support, a second rotating support and a third rotating support, the first rotating support is provided with a first guide wheel suitable for being in contact with a track beam; a second guide wheel suitable for being in contact with the track beam is arranged on the second rotating bracket; the linkage piece is in linkage with the first rotating support and the second rotating support so that the first rotating support and the second rotating support can move along with each other, and the rotating directions of the first rotating support and the second rotating support are opposite. According to the guide structure designed by the utility model, the stress of the guide wheel can be reduced, and the turning capacity of the railway vehicle is improved.

The present invention provides a forced-guide radial bogie for a straddle-type monorail vehicle, which comprises a guide torsion bar device, a first bogie and a second bogie, wherein the first bogie and the second bogie are hinged, a first-position axle is arranged on the first bogie, a second-position axle is arranged on the second bogie, and running wheels in contact with the upper surface of a track are arranged in the middle of the first-position axle and the second-position axle; a connecting rod guiding device is arranged on both sides of the first bogie and the second bogie, and the connecting rod guiding device actively changes the angle between the first bogie and the second bogie, releases the longitudinal constraint on the running wheels, and makes the running wheels purely roll on the curved track without any lateral force, thereby improving the curve passing ability of the straddle-type monorail bogie, improving the lateral stability of the bogie in straight-line operation, improving the running quality of the vehicle, reducing the eccentric wear and abnormal noise of the running wheels of the monorail vehicle on the curve, and ensuring the driving safety.

A symmetrical multi-unit railroad freight car, such as a 3-pack railroad intermodal well car, has body units that are connected symmetrically. The body units have a symmetrical arrangement of end trucks and shared trucks. The end trucks are 70 Ton Trucks. The shared trucks are 125 Ton trucks. The trucks have passive steering using geometric rocker stiffnesses. The rockers in the end trucks have a smaller radius of curvature than the rockers in the shared trucks. The spring groups in the shared trucks are stiffer than the spring groups in the end trucks. The spring groups in the end trucks have a different proportion of damping when empty, a shorter live load range of travel, and greater reserve travel than the shared trucks. The end trucks and the shared trucks have four-cornered damper groups that have the same sized damper wedges. The damper wedges have non-metallic wear pads.

The utility model provides an axle bridge type self-guiding independent rotating wheel running gear with an external axle box and a locomotive vehicle. The axle bridge type self-guiding independent rotating wheel running gear comprises independent rotating wheels, half axles, rolling bearings, guiding rotating arm beams, positioning plates, connecting plates, axle bridges, elastic suspensions, side beams, cross beams, transverse rods and transverse shock absorbers. An angle adjusting hole is formed in the positioning plate and connected with a sliding groove in the connecting plate, a certain dip angle can be formed between the connecting line of the circle centers of the upper hole and the lower hole of the positioning plate and the vertical line, and by adjusting the dip angle, the linear centering performance and the curve passing performance of the walking part of the independent rotating wheel are improved, and the running safety of the vehicle with the independent rotating wheel is improved.

The utility model discloses a rail type inspection robot driving device which comprises a chassis structure used for installing an inspection robot, the right side of the bottom of the chassis structure is fixedly connected with drooping plates, and one sides of every two drooping plates are provided with driving wheel mounting rods through bearings. A driving rod is mounted on the other side between every two drooping plates through a bearing, a driving wheel is mounted at the end of each driving wheel mounting rod, and a spring is mounted on the outer ring of each driving wheel mounting rod in a sleeving manner. According to the rail type inspection robot driving device, when the whole inspection robot works, especially turns, by means of the design and use of the flexible couplings and the springs, on one hand, the driving wheels can be pulled to be tightly pressed on the ground rail, and the friction force between the driving wheels and the ground rail is increased; therefore, the problem that the inspection robot is easy to derail during turning is effectively solved.

The present invention discloses a radial bogie for actively controlling the swing of a wheel set around its center, which relates to the technical fields of rail transit, machinery and control; it includes a car body structure, a wheel set device, a rocker arm steering device, a center bolster device, and an electric control driving device; the wheel set device is arranged on the front and rear sides of the car body structure, the wheel set device is pin-connected with the rocker arm steering device, the rocker arm steering devices are symmetrically distributed on both sides of the center bolster device and are connected to the center bolster device, the center bolster device is pin-connected to the center position of the car body structure, and the electric control driving device is hinge-connected to the car body structure; by adopting the above-mentioned radial bogie for actively controlling the swing of the wheel set around its center, in order to enable the train to achieve the radial steering function, the kinematic principle of a multi-link mechanism is adopted, which can make the steering of the rail train have better stability, safety and reduce wheel-rail wear and noise.

The utility model belongs to the field of large component transportation tools in a field, and particularly relates to a box girder precast beam field reinforcing steel bar transfer flat car. Comprising a vehicle body, the top surface of the vehicle body is a bearing plane, four wheels are arranged on the bottom surface of the vehicle body, the four wheels comprise two driving wheels and two steering wheels, the two driving wheels are connected with independent driving mechanisms respectively, and the two steering wheels are connected with the vehicle body through steering shafts respectively; the two driving wheels are located at two ends of the first line segment, and the two steering wheels are located at two ends of the second line segment; the vehicle body enables the steering wheel to swing to complete steering through the rotating speed difference of the two driving wheels, and the vehicle body moves linearly when the rotating speeds of the two driving wheels are synchronous; the box girder precast beam yard reinforcing steel bar transfer flat car is simple and reasonable in structure, can easily achieve transportation of reinforcing steel bar semi-finished products, can be recycled, greatly reduces labor intensity and construction cost, and improves work intensity.

The application relates to the technical field of vehicles and provides a guide system of a rail vehicle, the rail vehicle and a rail transit system, which comprise a wheel structure, an identification structure and a control system, the wheel structure comprising a wheel frame, a wheel and a steering system connected to the wheel, the identification structure being connected to the wheel structure and being adapted to be arranged opposite to and spaced from a guide reference surface of a guide rail structure, the identification structure being configured to be capable of identifying the relative position relationship between the wheel structure and the guide reference surface, and the control system being connected to the identification structure and the steering system and being used for controlling the steering system to drive the wheel to steer according to the relative position relationship identified by the identification structure. The guide system can avoid the problems of complex structure, high cost, large transverse impact and easy reduction or failure of guide performance of a mechanical contact type guide system on the basis of ensuring safety.

The utility model relates to the technical field of rail transit, in particular to an automatic adjusting device for a bogie wheel set of a rail transit vehicle. According to the technical scheme, the device comprises a fixing frame and supporting plates movably installed at the two ends of the fixing frame, and an automatic adjusting assembly and an anti-collision assembly are arranged on the fixing frame; the automatic adjusting assembly comprises two supporting frames movably installed at the bottom of the supporting plate, a shaft sleeve is fixedly installed at the bottom of each supporting frame, a fixing wheel is rotationally installed on the outer side of each shaft sleeve, fixing plates are fixedly installed on the front side and the rear side of each fixing frame, and thrust springs are fixedly connected between each fixing plate and the two supporting plates. The movable frame, the supporting wheels, the movable rods, the connecting frame, the fixing piles and the anti-collision frame are matched with one another, so that the angle of the fixing wheels can be automatically adjusted along a curve of a rail, automatic adjustment of a vehicle bogie wheel set is facilitated, the anti-collision effect of the anti-collision frame can be improved, and the situation that the anti-collision frame is damaged when collided is avoided.

The present disclosure relates to a computer-implemented method for determining a real-time steering angle (58) for a railway truck (1), and to a control device (40) configured to perform the method, the method comprising: determining, by a sensor assembly, at least one transverse real-time sensor signal (38), the transverse position of the tread of at least one wheel of the railway bogie (1) relative to the railway track is characterized; determining a real-time position and / or orientation of the railway bogie (1) relative to the railway track (31) using the received at least one transverse real-time sensor signal (38) by means of a positioning algorithm (47); and determining a real-time steering angle (58) for steering of the railway truck (1) using the determined real-time position and / or orientation of the railway truck (1).

The invention relates to the technical field of railway vehicle type equipment, in particular to a positioning anti-skid structure for skid resistance of a sightseeing mini-train. A driving assembly comprises a driving motor fixedly connected to the side wall of a bearing beam, and a T-shaped connecting shaft is fixedly connected to the outer wall of a driving shaft of the driving motor; two connecting rods are rotationally connected to the inner walls of the top and the bottom of the end, away from the driving motor, of the T-shaped connecting shaft, and a plurality of U-shaped connecting rods are rotationally connected to the outer walls of the two connecting rods. During starting, a driving motor is powered on and started, at the moment, a driving shaft of the driving motor can drive a T-shaped connecting shaft to rotate by a certain angle, so that a plurality of U-shaped connecting rods rotationally connected to a connecting rod with the T-shaped connecting shaft move towards the two sides, and movable rods fixedly connected to the outer walls of the U-shaped connecting rods push a flywheel disc to move towards the inner side of an auxiliary wheel; the pressure between the protruding side wall of the outer edge of the auxiliary wheel and the train rail is increased, then the friction force between the auxiliary wheel and the train rail is increased, and the probability that the small train slips during starting is reduced.

The invention relates to a device for transmitting longitudinal forces in a rail vehicle. A hydraulic axle lead bearing (ALL) has an outer housing element (GEHA) and an inner housing element (GEHI) which is connected to a bogie (DGST) or a wheel set (RS1, RS2) of a rail vehicle in order to transmit longitudinal forces which arise in the course of driving of the rail vehicle between the wheel set (RS1, RS2) and the bogie (DGST). The hydraulic axle lead bearing (ALL) has two mutually opposite chambers (KAM1, KAM2) which are filled with a fluid (FLU) and which have a respective chamber volume. A change in the relative position between the housing elements as a result of the longitudinal force leads to an alternating change in the volume of the two chambers (KAM1, KAM2). The two chambers (KAM1, KAM2) are coupled to one another by means of a line (LTG1, LTG2) which contains the fluid (FLU) and which extends outside or externally of the axle lead bearing (ALL). The alternating change in the volume of the two chambers (KAM1, KAM2) is brought about by a movement of the fluid (FLU). The external line (LTG1, LTG2) has a damping element (FDE) by means of which the movement of the fluid (FLU) between the two chambers (KAM1, KAM2) is damped.

The invention relates to the technical field of knuckle bearings, in particular to a maintenance-free knuckle bearing unit for a bogie of a rail transit vehicle, which comprises a bearing module, a movable module, a dual-seal module and a detection module. The bearing module is used for being connected with a bogie. The movable module is movably arranged on the bearing module, the contact face between the movable module and the bearing module is in an arc shape, one end of the movable module extends out of the bearing module in the axial direction and is used for being connected with another bogie, and the movable module can swing relative to the bearing module; the double-sealing module is arranged around the movable module, and the double-sealing module is connected with the bearing module and the movable module, so that a double-sealing closed cavity is formed between the movable module and the bearing module; the detection module is arranged on the bearing module, and the detection module is used for monitoring operation state parameters between the bearing module and the movable module. According to the invention, the long-period maintenance-free operation of the bearing can be realized on the premise of ensuring the safety.

The present disclosure relates to a railway bogie (1) and a method for damping the movement about a vertical steering axis (4) of the railway bogie (1), wherein the railway bogie (1) comprises a base (2) which is arranged to be mounted on a chassis of a railway vehicle, a frame (3) which is rotatably arranged, two wheels which each comprise a tread, wherein the two wheels are spaced apart from each other in a lateral direction (Y), at least one sensor arrangement and at least one yaw damper (34) which is coupled to the frame (3) and is arranged to dampen the movement of the frame (3) about the vertical steering axis (4) in a damped operating mode, and is arranged to allow substantially undamped movement of the frame (3) about the vertical steering axis (4) in an undamped operating mode.

The utility model discloses an elastic bushing, anti-roll device and rail transit vehicle, the elastic bushing includes skeleton inner ring, skeleton shell and multi-layer rubber layer, the radial direction of rubber layer is provided with the gap, makes its radial rigidity present gradient change, in addition integrates the hardness and strength difference of multi-layer rubber, and the elastic bushing is more flexible. The radial rigidity during initial deformation is in a low level; and the radial displacement of the elastic bushing is controlled and a deformation space is provided in a manner of increasing a rubber gap or avoiding. The anti-side-rolling device using the elastic bushing has low anti-side-rolling rigidity under low load, the flexibility coefficient of a vehicle body is high at the moment, and the running comfort is high; the anti-side-rolling device has high anti-side-rolling rigidity under the high side-rolling load, at the moment, the anti-side-rolling capacity of the vehicle body is good, and operation is stable and safe.

An embodiment of the present application provides a suspension frame and a maglev train for a maglev train. The suspension frame includes a lower frame, a first transition pillow beam, an upper frame, and a traction device. A linear motor induction plate and a Dewar device are arranged on the lower frame. The first transition pillow beam is flexibly connected to the lower frame, the upper frame is flexibly connected to the first transition pillow beam, and the traction device is used to connect the maglev train and is connected to the upper frame. By providing the first transition pillow beam and flexibly connecting the first transition pillow beam and the lower frame, the suspension frame provided by the embodiment of the present application reduces the connection of the interface between the lower frame and the upper frame, improves the comfort, improves the decoupling ability, enables the overall structure of the suspension frame to have high stability and better reliability, and the suspension frame has better curve passing performance.

The invention relates to a chassis (1) for a levitation vehicle (8) of a maglev train limited to a track, comprising two rows (14, 15) composed of a plurality of levitation frames (2) which are spaced apart from one another in the transverse direction (Y) of the chassis (1) and extend in the longitudinal direction (X) of the chassis (1), wherein the levitation frames (2) of adjacent rows in the longitudinal direction (X) are movably connected to one another by means of first joints (3), and a plurality of transverse connections (4, 5) for connecting the two rows (14, 15) and each movably connected to two levitation frames (2) opposite one another in the transverse direction (Y) by means of a respective second joint (7). According to the invention, at least two transverse connections (4, 5) spaced apart from one another in the longitudinal direction (X) of the chassis (1) are designed as transverse connections (4, 5) having different lengths from one another.

The utility model discloses an extension assembly for a guide wheel of a railway vehicle, a guide mechanism, a bogie and the railway vehicle, and the extension assembly comprises the guide wheel which is suitable for being in contact with a guide surface of a track beam; and the movable mechanism is connected with the guide wheel to drive the guide wheel to move at least in the height direction so as to be matched with different guide surfaces. The extension assembly designed according to the utility model is used for the guide wheel of the railway vehicle, and can selectively drive the guide wheel to move in the height direction so as to adjust the position of the guide wheel, so that the railway vehicle can be applied to more scenes.

A rail wheel set for a car which can be moved on a rail of a rail system has a bearing housing with a radial suspension for connecting the rail wheel set to the car, and two running wheels which are rotatably mounted on the bearing housing. Each wheel has a respective rail rolling surface, the shape of which is adapted to the contour of a running surface of the rail, and a respective ground rolling surface. The wheels can roll independently of each other on the running surface of the rail or on the ground. The rail wheel set is secured to a chassis of a car for transporting objects on a rail system.

Method for determining changes in the longitudinal dynamic behavior of a running gear of a rail vehicle for identifying a current driving state of the rail vehicle, wherein, by means of a control-technical observer (1), non-measurable variables characterizing the longitudinal dynamic behavior are reconstructed and evaluated from a known or metrologically determined input signal (u) and at least one measurement signal (y) of the observed rail vehicle as the observed real reference system (10) by a system model (20) of the rail vehicle, wherein the at least one measurement signal (y) of the observed rail vehicle and a corresponding reconstructed measurement signal (ŷ) of the system model (20) are compared, and the deviation determined by comparison is recursively tracked by a controller so that the determined deviation is minimized, characterized in thatthat the evaluation of the variables characterising the longitudinal dynamic behaviour includes a comparison of the variables of successive running gears or car bodies or wheelsets.

The utility model discloses a swing device of swing bogie, including H type frame, the H type frame is fixedly connected with the butt joint board for connecting train in the position of center, the top fixed connection of H type frame has two air springs, the both ends of H type frame are all rotatably connected with wheelset through bearing, and the outside fixed connection of wheelset has two limit stops, two L type boards are fixedly connected in the H type frame, and wheelset passes through L type board, the top fixed connection of L type board has two fixed blocks, and one side of two fixed blocks is all fixedly connected with the rotating plate. The utility model not only can effectively reduce the impact between wheel and rail, improve the running stability of vehicle, reduce wheel and rail wear, prolong the service life, promote the operation efficiency, but also can restrain the lateral vibration and swing of carriage in the horizontal plane, especially prevent dangerous "snake movement", ensure the running stability and safety.

A monocoque bogie frame (14) for a bogie (10) of a railway vehicle, comprising two side beams (24) and at least one support beam (28) extending in a transverse direction of the bogie frame (14) and rigidly connected to each of the two side beams (24). The support beam (28) comprises a support portion (30) for supporting a drive unit (16) of the bogie (10) and an elongated portion (32). The support portion (28) is directly connected to one of the two side beams (14) and connected to the other one of the two side beams (14) via the elongated portion (32). The planar moment of inertia (M) and the polar moment of inertia (J) of any cross section of the support portion (30) of the support beam (28) are at least twice, preferably at least 2.5 times, the planar moment of inertia (M) and the polar moment of inertia (J) of any cross section of the elongated portion (32) of the support beam (28), respectively.

Summary: The invention relates to an independent wheel chassis for a vehicle with steerable wheels, an axle carrier, a wheel set carrier and a motor unit in a compact design with a vertical steering axis which is located inside the wheel near the center plane.

The utility model discloses a single-shaft bogie, and belongs to the technical field of rail engineering trucks. Comprising a framework, a wheel set, a braking device, a vibration reduction device, a center plate assembly and a guide ring device, the center plate assembly comprises a lower center plate, an upper center plate and a center pin, the guide ring device comprises an outer rotating guide ring and an inner rotating guide ring, the lower center plate is fixed to the upper side of the framework, and the upper center plate is located on the upper side of the lower center plate and coaxially arranged with the lower center plate; the center pin downwards penetrates through the axes of the upper center plate and the lower center plate, and the lower part of the center pin is fixedly connected with the framework; the outer rotating guide ring is fixed on the framework, and a ring groove is coaxially formed in the inner wall of the outer rotating guide ring; the inner rotating guide ring and the outer rotating guide ring are coaxially arranged, the inner rotating guide ring is located on the adjacent inner side of the outer rotating guide ring and located outside the center plate assembly, the upper side of the inner rotating guide ring is higher than the upper side of the outer rotating guide ring and flush with the upper side of the upper center plate, the inner rotating guide ring is located above the framework, and a protruding ring matched with the annular groove is coaxially arranged on the outer wall of the inner rotating guide ring. The convex ring is located in the annular groove, and floating gaps are formed between the three edges of the convex ring and the corresponding sides of the annular groove.

The present invention discloses a straddle-type monorail vehicle and a single-axle bogie thereof, wherein the single-axle bogie comprises a frame, a left radial oil cylinder and a right radial oil cylinder symmetrically arranged between the frame and the vehicle body, and a left-turn supporting wheel set and a right-turn supporting wheel set respectively arranged on the frame; all left buffer oil cylinders of the left-turn supporting wheel set are connected to the left radial oil cylinder, and all right buffer oil cylinders of the right-turn supporting wheel set are connected to the right radial oil cylinder. The present invention uses the left buffer oil cylinder and the right buffer oil cylinder to control one of the left radial oil cylinder and the right radial oil cylinder to automatically extend and the other to automatically retract in a manner with minimum energy consumption, so as to stably support the vehicle body for turning, reduce the side slip angle and side slip force generated when the frame turns, and simultaneously adjust the preload force of the left-turn supporting wheel set and the right-turn supporting wheel set, so that the preload force remains stable within a certain range, thereby effectively improving the lateral stability of the vehicle body when turning.

Transverse guide arrangement 100, in particular for a car body arrangement 20 of a track-guided vehicle 1 for transversely guiding a car body 2 relative to a chassis 4, with a first guide arrangement 10.1, 10.2, the first guide arrangement 10.1, 10.2 comprising: a first car body-fixed element 110.1, 110.2 with a first contact surface 112.1, 112.2, a first chassis-fixed element 120.1, 120.2 with a second contact surface 122.1, 122.2, wherein the first contact surface 112.1, 112.2 and the second contact surface 122 form a first contact surface pair 112.1, 112.2, 122. The first car body-fixed element 110.1, 110.2 and / or the first chassis-fixed element 120.1, 120.2 has / have an elastic bearing arrangement 130.

The application discloses a bogie, a regulating method and a transport vehicle. The bogie comprises a frame, a wheel pair assembly installed on the frame and used for rolling cooperation with a track, a spring, a support connected with the frame through the spring, the support and the frame having a first vertical interval, a positioning wheel assembly installed on the support and used for rolling cooperation with a track beam, a vertical limiting assembly installed on the frame or the support and located in the first vertical interval, and the vertical limiting assembly and the frame or the support having a second vertical interval. When the body roll is greater than a design value, one side of the frame is lifted, the second vertical interval is gradually reduced after the frame is lifted, and the second vertical interval is reduced to 0. When the second vertical interval is reduced to 0, the vertical limiting assembly is in abutment with the frame and the support, so that overturning of the body is prevented. When the wheel climbs upward along the track, the climbing height of the wheel rim along the track is less than the minimum height of the wheel rim under the action of the vertical limiting assembly, so that climbing of the vehicle is avoided. In addition, when the wheel rim further increases the lateral displacement along the track if the vertical limiting assembly fails, the lateral limiting assembly is used, so that derailment of the vehicle is avoided. Therefore, the two measures are used to avoid derailment of the vehicle.