483results about "Bogie-underframe connections" patented technology

A rail vehicle including an underframe that contributes to improvement in assembly and that is light in weight and high in rigidity is provided. The rail vehicle includes an underframe including a floor body structure that forms a floor surface and a bolster. The bolster includes a first shape member arranged at a middle portion of the bolster, at least part of the first shape member being formed by extrusion along a widthwise direction of the floor body structure, a second shape member connected to each of opposite end portions of the first shape member in the widthwise direction of the floor body structure, at least part of the second shape member being formed by extrusion along a lengthwise direction of the floor body structure, and a plate-shaped member connected to a side beam and connected to the second shape member.

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 present invention discloses an auxiliary spring that compensates for the height decrease due to the creep of a rubber body in a mechanical transmission manner, which includes a rigid core shaft, a rubber body vulcanized and bonded to the outer periphery of the core shaft, a metal outer sleeve vulcanized and bonded to the outer periphery of the rubber body, and a support plate horizontally installed on the top of the metal outer sleeve. A height lifting device is provided between the core shaft and the base. The lifting device includes a frame base, a lifting mechanism installed on the frame base, a torsion transmission mechanism, and a pressure storage mechanism. When the rubber body has crept and dropped to a set height, the carriage is in a heavy load condition, and the auxiliary spring encounters a downward overload impact, the support plate sinks and presses down the pressure storage mechanism, and the pressure storage mechanism temporarily stores the pressure. When the downward overload impact is released or the carriage heavy load is released, the pressure stored in the pressure storage mechanism causes the lifting mechanism to lift the auxiliary spring upward through the torsion transmission mechanism, thereby realizing the compensation for the decreased height of the auxiliary spring.

An air spring assembly (100) for secondary air suspension between the car body and bogie of a rail vehicle is provided. The air spring assembly (100) has a first connecting line (121) for connecting a first air spring (131) to a volume of compressed air and a second connecting line (122) for connecting a second air spring (132) to a volume of compressed air. The air spring assembly (100) also has a compressed air reservoir (110) that provides a single volume of compressed air (111), with both the first connecting line (121) and the second connecting line (122) being connected to the single volume of compressed air (111). The compressed air reservoir (110) is typically attachable to the car body or the bogie of a rail vehicle. In particular, the compressed air reservoir (110) is interchangeably attachable to the car body or the bogie of a rail vehicle.Furthermore, a rail vehicle with an air spring arrangement (100) and a method for supplying air springs are described.

The invention relates to an active suppression control method for mechanical vibration of a railway vehicle, which comprises the following steps of: acquiring vibration signals of a vehicle body chassis, a bogie frame and a wheel set axle box in real time through a sensor array, and generating a vibration data set through filtering and noise reduction; performing multi-degree-of-freedom coupling feature analysis on the data set based on a vibration analysis model, and extracting vibration coupling features of vehicle body vertical bending, bogie snaking oscillation and wheel set torsional resonance modes; generating a vibration intensity trend matrix through time-frequency conjoint analysis, and indicating the vibration intensity change of each component in real time; when the vibration intensity exceeds the limit, parameters of a damper, a vibration absorber and an actuator are dynamically adjusted, and a vibration suppression instruction set is generated; and finally, the actuating mechanism is driven to cooperatively suppress the multi-mode coupling vibration. According to the method, the composite vibration problem of vehicle body shaking, bogie buffeting and wheel rail impact under the high-speed working condition is solved, and therefore the vibration suppression real-time performance and the cooperative control precision are improved.

A railroad car truck including one or two new side frames that each includes one or more of a plurality of different improvements that individually and in various combinations reduce, inhibit, or minimize the likelihood of stress fractures or cracks in the side frame.

According to the multifunctional rail engineering vehicle set with the running direction reversing function, a hydraulic winch winch is arranged at the front end of a rail engineering vehicle, and a hydraulic excavator is carried at the rear end of the rail engineering vehicle; one bottom face of a frame of the rail engineering vehicle is provided with an axle box locking oil cylinder corresponding to axle box end covers in the wheel set axle boxes in the vertical direction, and a rotary supporting device located between the two wheel set axle boxes is installed in the middle of the rail engineering vehicle. The rail engineering truck moves downwards from the lower end to rotate and reverse under rotating supporting of the rotary supporting device connected with the steel rail in an anti-sideslip fit mode. According to the invention, material transfer, traction, excavation and hoisting are realized, extra allocation equipment is not needed, the problem that a traditional rail engineering vehicle is limited by a rail structure and needs a special steering line to adjust the direction is solved, convenience is provided for single-track railway maintenance, tunnel construction and reversing in a limited scene of small operation interval space, the driving direction adjusting difficulty is reduced, and the working efficiency is improved. The operation efficiency is improved.

The permanent magnet suspension monorail vehicle bogie comprises a bogie frame and a suspension device, a motor is installed at the top of the bogie frame, a brake device and a guide wheel are arranged at the two ends of the bottom of the bogie frame in the longitudinal direction of the bogie frame, and the number of the guide wheel located at any end of the bogie frame is one. Safety wheels are installed on the periphery of the bottom of the bogie frame, and the guide wheels and the brake device share a brake clamping rail. A current collection device and a permanent magnet suspension device are mounted at the bottom of the bogie frame; the suspension device comprises a suspension beam, and the suspension beam is connected with the bogie frame through a suspension pin and connected to a vehicle body through a suspension frame and a traction rod. According to the permanent magnet suspension monorail vehicle bogie, the internal structure of the bogie frame can be simplified, and the strength design of the bogie frame is reduced; the scheme that a single guide wheel is arranged on a single side is adopted, and the number of the guide wheels is reduced; the guide wheels and the brake device share the brake clamping rail, and the overall height of the bogie and the rail beam can be reduced.

The utility model provides a bogie device for track engineering machinery. The bogie device for the track engineering machinery comprises four sets of primary suspension devices which are installed at the positions, close to the two sides, of the bottom of a framework respectively. Two axles are installed at the positions, close to the two sides, of the bottom of the framework through axle box devices respectively, wheels are installed at the two ends of each axle respectively, lever type foundation braking devices are installed at the positions, close to the two sides, of the bottom of the framework respectively, each lever type foundation braking device comprises two braking levers, and the braking levers are arranged on the two sides of the framework respectively. The top end of one brake lever is provided with a horizontal lever body through a connecting rod, and the other end of each horizontal lever body is provided with a brake cylinder. According to the bogie device for the track engineering machinery, the basic braking capacity of a vehicle is effectively improved by increasing the configuration number of the brake shoes, the cost reduction effect is obvious compared with a unit brake type basic braking device, and meanwhile higher application stability is achieved.

The application discloses a kind of car body and bogie hanging connection device. Including car frame middle beam and bogie, each axle of bogie is provided with a set of hanging connection device;Each set of hanging connection device includes: device upper part and middle beam flange or web limiting contact suspension combination hook assembly, device lower part can pass through axle, and with axle rotation limiting combination U-shaped suspension ring assembly, located in device middle part connecting hook assembly and U-shaped suspension ring assembly's crossbeam assembly.The car body and bogie hanging connection device of the application adopts arc-shaped hook, crossbeam, U-shaped bolt, connecting plate combination screw, nut and other fasteners combination into four-point hanging type connection device, avoids the obstacle above axle, realizes the horizontal hanging of car body to bogie, adapts the narrow space of the combination of bogie and car body, avoids to disassemble and test vehicle, device uses screw adjustment mode, it is convenient to adjust and compensate the height deviation between car body and bogie axle;Flexible, convenient to use.

Provided are a bogie and a vehicle, relating to the field of bogie structures. The bogie comprises: a framework; a suspension apparatus connected to the framework, wherein the suspension apparatus comprises primary suspension members (31) and secondary suspension members (32), and the secondary suspension members (32) are formed as air springs; and an anti-rolling device, comprising a bolster anchor (51) and a torsion bar (52), wherein the bolster anchor (51) is arranged above the secondary suspension members (32); and end portions of the torsion rod (52) are rotatably connected to the framework by means of links, and a side portion of the torsion rod (52) is rotatably connected to the bolster anchor (51). The air springs can provide the most suitable stiffness characteristics for a vehicle, so as to ensure that the vehicle has high comfort in the operation process; in addition, the air springs can also automatically inflate or deflate on the basis of changes in passenger load, so as to ensure that the floor surface of the vehicle is kept unchanged within a fixed height range, thereby facilitating passengers' boarding and alighting at the platform, and improving the passenger experience during travel.

To provide a thin structural member which contributes to the improvement of assemblability of a vehicle body, is light-weight and has high rigidity, and a railroad vehicle that forms a floor surface with an underframe structure with such a structural member.SOLUTION: A body bolster of a railroad vehicle includes: a plurality of radial ribs arranged radially from the center of a vertical load input unit and having a shape of a protrusion on the surface of a flat plate arranged horizontally with a curvature provided in the longitudinal or width direction of a vehicle more gently as it moves away from the center of the vertical load input unit; and a circular rib arranged intermittently around a vertical load input seating surface so as to overlap the plurality of radial ribs.SELECTED DRAWING: Figure 4

The invention discloses a damping adjusting method, device and equipment of an anti-snake-shaped shock absorber and a storage medium, belongs to the field of train shock absorption, and aims to consider that other disturbed quantities except the anti-snake-shaped shock absorber can be regarded as a whole (sum uncertainty) in relative head shaking angle information of a bogie. Therefore, the method comprises the following steps: firstly, determining a dynamic differential relational expression of the relative head shaking angle information of the bogie about the damping coefficient of the anti-serpentine damper and the sum uncertainty, and then determining a sum uncertainty estimator (used for outputting a sum uncertainty estimated value) of the bogie; according to the method, the target damping coefficient of the anti-snakelike damper can be determined based on the dynamic differential relation on the basis of the total uncertainty estimated value and the measured value of the relative head shaking angle information, so that the damping coefficient is dynamically adjusted, the method can adapt to complex and changeable operation conditions, and the transverse stability and riding comfort of a train are improved.

The invention relates to a rail vehicle, for which a direction of travel is specified and which has a leading bogie at a front of the rail vehicle with respect to the direction of travel and a trailing bogie at the end of the rail vehicle which is directed counter to the direction of travel. The leading bogie and the trailing bogie are each equipped with an anti-roll stabilizer. The roll stiffnesses of the anti-roll stabilizers of the leading bogie and of the trailing bogie are selected to be different such that, when side wind acts on the rail vehicle, unequal wheel unloading at the leading and trailing bogies is counteracted.

The invention relates to the technical field of magnetic levitation vehicle walking mechanisms, and discloses a frame type suspension framework suitable for low-vacuum pipeline superconducting electric magnetic levitation. The suspension framework comprises a framework main structure, a supporting wheel mounting seat, a guide wheel mounting seat, a vertical shock absorber mounting seat, a longitudinal shock absorber mounting seat, a transverse shock absorber mounting seat, a hoisting seat, a transverse backstop mounting seat, a safety steel cable mounting seat, an equipment mounting plate and an emergency supporting wheel mounting interface, the framework main structure comprises framework end beams, framework side beams and framework cross beams, the framework end beams, the framework side beams and the framework cross beams are respectively provided with a plurality of lightening holes, and the framework main structure is made of aluminum alloy.

The utility model discloses a three-axle bogie of a new energy rail traction locomotive, which relates to the technical field of three-axle bogies, and comprises a framework, a connecting mechanism, a sand mechanism, a buffer mechanism, a traction frame, a pull arm mechanism and a driving mechanism, the connecting mechanism is arranged at the top of the framework, the sand mechanism is arranged at the corner of the framework, and the buffer mechanism is arranged at the bottom of the framework. The multiple buffering mechanisms are installed on the two sides of the framework respectively, the traction frame is installed at the ends of the buffering mechanisms, the arm pulling mechanism is installed on the framework, and the multiple driving mechanisms are installed below the framework at equal intervals. Through the arrangement mode that the sand mechanism, the buffering mechanism, the traction frame, the pull arm mechanism and the driving mechanism are matched, the power bogie of the new energy rail traction locomotive is more compact in structure, smaller in power loss and higher in efficiency, large-torque operation can be provided for the locomotive, electric energy is saved, and cost is reduced; the use stability of the bogie is improved.

The utility model provides a bogie structure and a sky rail system suitable for severe environments, the bogie structure comprises a bogie, the lower end of the bogie is used for being hinged with a vehicle body, the bogie is provided with a side rolling stopper, the side rolling stopper is used for limiting and buffering the side rolling angle of the vehicle body, and a motor frame is arranged above the bogie. The motor frame is vertically and movably connected with the bogie, an elastic vertical stopper is arranged between the bogie and the motor frame, the acting force of the vehicle body on the side rolling stopper is transmitted to the motor frame through the vertical stopper, positioning wheels are arranged at the two ends of the motor frame, the positioning wheels are used for abutting against a track beam, and the positioning wheels are used for transmitting the acting force on the motor frame to the track beam. The side rolling motion of a vehicle body is released, the side wind moment is balanced through the gravitational moment of the vehicle, the wheel load shedding rate of the bogie is reduced, meanwhile, the side rolling backstops, the vertical backstops and the positioning wheels are arranged, the side rolling angle is limited, the bogie can be prevented from overturning, and the structural reliability is guaranteed.

The invention belongs to the technical field of rail transit, and provides a train air spring active tilting system which is mainly characterized in that a displacement signal and an active tilting angle of a balance body in a balance sensor are acquired, and a controller judges whether a train is in a straight road section or a curve road section according to the displacement signal; if yes, a first current signal is output to the active tilting valve, at the moment, the active tilting valve is controlled to inflate an air spring on one side and perform active tilting, and in the active tilting process, the controller outputs a second current signal to the corresponding electromagnetic flow control valve according to the active tilting angle and controls the opening degree of the switched-on electromagnetic flow control valve to control the electromagnetic flow control valve to perform active tilting. The inflation flow is controlled; when the train is in a straight road section or the active tilting system breaks down, the first current signal is not output to the active tilting valve, at the moment, the air springs on the two sides are in the original working state, and the air pressure difference of the air springs on the two sides is maintained within a certain range.

The invention provides an air spring capable of preventing a fastening screw for fixing a pressing part on an upper panel from falling off. The air spring includes an upper panel, a lower panel, a diaphragm, a pressing member, a first fastening screw, and a sliding plate. The lower panel faces the upper panel. The diaphragm connects the upper panel and the lower panel, and an internal space is formed between the upper panel and the lower panel. The pressing member covers the upper panel and the sealing portion of the opening end portion of the diaphragm. The pressing part is fixed to the upper panel through the first fastening screw. The sliding plate is installed on the upper panel. The sliding plate covers the first fastening screw.

The invention relates to the technical field of train bogie suspension systems, and discloses a train bogie suspension system based on self-adaptive control, which comprises a train bogie, a sensing network unit, an adjustable suspension execution mechanism, a self-adaptive control unit and a communication interface. According to the train bogie suspension system based on self-adaptive control, the train bogie suspension system can automatically analyze the control effect, recognize the operation mode and explore potential laws through a learning and optimizing module, long-term recording of historical operation data (state input, control output and performance feedback) and an integrated machine learning technology, and the train bogie suspension system can automatically control the train bogie suspension system based on the analysis results. The system can autonomously adjust the internal parameters of the adaptive control strategy, optimize the fuzzy rule base or refine the weight of the neural network model, so that the control strategy can continuously accumulate experience, the control performance of the control strategy is adaptively improved, and the intelligence level and the superiority of long-term operation of the system are remarkably improved.

To provide a railway vehicle which secures enough space for an installation of equipment components and makes the equipment components easily installed.SOLUTION: In a railway vehicle 1 which comprises a truck 16 to travel on a track 25, an underframe 11 supported by the truck 16, a cap beam 113 to constitute the underframe 11 on the truck 16, and a center pin 21 to transfer a tractional force in the track direction caused by traveling of the truck 16, to the underframe 11, the underframe 11 has a middle beam 114 extending in parallel to the track direction at a midship part in a sleeper direction, the center pin 21 is connected to the middle beam 114, the underframe 11 has a rigging space 117A, 117B opening toward outside of the underframe 11 in a neighborhood of the cap beam 113, on a lower face in a track 25 side or on an upper face in an opposite side against the track 25 side.SELECTED DRAWING: Figure 3

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.

A joint arrangement between a frame (1) and a bogie corner (2) of a crane configured to run on fixed rails or floating rails, comprising a pin (3) protruding from a sill beam (10) of the frame (1) and connected to an aperture of the bogie corner (2) and configured to allow rotational movement in relation to the bogie corner (2), and a sliding element (30).

The present invention relates to an active hydraulic suspension control device, a control system and a control method. The active hydraulic suspension control device comprises: two vertical hydraulic cylinders, two hydraulic branches and a servo-driven electro-hydraulic system; the two vertical hydraulic cylinders are symmetrically arranged and are divided into an upper liquid chamber and a lower liquid chamber by the pistons in each hydraulic cylinder; each upper liquid chamber and the lower liquid chamber are connected by a first hydraulic branch and a second hydraulic branch respectively; the servo-driven electro-hydraulic system controls the liquid supply branch to supply oil to the two hydraulic branches, thereby changing the oil pressure in the hydraulic branches, pushing the pistons of the two vertical hydraulic cylinders to move in opposite directions, so that one of the piston rods of the two vertical hydraulic cylinders extends and the other shortens, driving the vehicle body to tilt accordingly; the active hydraulic suspension control device can achieve lightweight; the control system and control method provided by the present invention can improve the vehicle's curve passing ability and passenger comfort, improve the vehicle's dynamic characteristics, and increase the vehicle's curve passing speed.

Provided is a shaking head stop device with a two-stage lifting function, belonging to the field of rail vehicle technology. When the rail vehicle has a curve radius that is too small, the baffle and the hook come into contact and limit the torsion of the hook, thereby limiting the torsion angle of the vehicle body and the bogie, so that the stacked rubber pile is within a safe torsion range; when the rail vehicle is lifted as a whole, the hook drives the two-stage lifting ring, and the two-stage overall lifting of the bogie is achieved through the bolts fixed thereon. The present invention realizes the role of a device with multiple functions by integrating the two-stage lifting structure connected to the vehicle body longitudinal beam and the two-stage shaking head stop structure connected to the bogie. It not only facilitates the lifting of the vehicle as a whole, but also effectively limits the torsion of the vehicle body relative to the bogie, thereby preventing interference between components, improving the driving safety of railway engineering vehicles, facilitating disassembly and assembly, saving manpower and material resources, reducing costs, and improving efficiency.

The invention discloses a bogie of a straddle type monorail travel rail train, which comprises a rail, and further comprises a framework, a walking wheel set, a stabilizing wheel, suspension structures, a quick-release connecting part and a connecting rod, the framework is I-shaped and comprises two long ends and a short end, the suspension structures are arranged at two end parts of the long ends of the framework, the suspension structures are modularized integrated units, and the quick-release connecting part is arranged on the framework. The suspension structure is in bolted connection with the bottom of the long end of the framework, the walking wheel set comprises a plurality of walking wheels, the two ends of the connecting rod are connected with the walking wheels respectively, and the quick-release connecting part is detachably connected to the bottom of the short end of the framework. One end of the connecting rod is connected with the framework through a spherical joint, and the other end fixes the walking wheel set through a flange. The modular suspension structure is arranged, the spring set and the hydraulic damper are integrated in the modular suspension structure, and the suspension structure can be quickly replaced through the quick-release connecting part; the axle of the stabilizing wheel is rigidly connected with the piston rod of the hydraulic adjusting cylinder, so that the pre-tightening force can be adjusted according to the inclination angle of the track.

A wheelchair-accessible low-floor tram bogie relates to the technical field of low-floor tram bogies and includes a frame, primary longitudinal tie rods, a primary suspension spring assembly, a brake caliper, a brake disc, a coupling, a motor, a secondary suspension spring assembly, a secondary vertical damper, a traction tie rod, a transverse stop, a magnetic rail brake, wheels, an axle bridge, an axlebox, a gearbox, and a wheel core assembly. The bogie of the present invention meets the requirements for convenience and safety for disabled people passing through the vehicle, as well as passenger comfort, while meeting the standard vehicle width and standard track gauge, without compromising low-floor tram bogie performance and maintaining an unchanged vehicle floor surface.

The utility model discloses an air track pneumatic tire coal transport vehicle and an air track transport system. The transport vehicle comprises a bogie and a vehicle body. The bogie is connected with the vehicle body through a central suspension device; the vehicle body runs on the aerial track through the bogie; the bogie comprises a framework, a plurality of wheel assemblies, a motor driving device, a foundation braking device and a gear box, each wheel assembly comprises two tires, and the two tires are inflatable tires and are rotatably installed on the two sides of the framework in the width direction respectively; the motor driving devices are arranged at the two ends of the framework, the gear boxes are connected with the framework, the gear boxes are arranged between the corresponding motor driving devices and the corresponding wheel assemblies, and the motor driving devices transmit torque to the gear boxes through couplings so as to drive the wheel assemblies to walk. According to the aerial track pneumatic tire coal transport vehicle, the vibration of the vehicle and the aerial track beam is relatively small, the gradeability of the vehicle is strong, and the maintenance is more convenient.

A railcar includes a frame configured to support a first container and a second container in an end-to-end configuration. The first bogie assembly is coupled to a first end of the frame such that movement of the frame is decoupled from the first bogie assembly, and the second bogie assembly is coupled to a second end of the frame such that movement of the frame is decoupled from the second bogie assembly. Thereby, twisting and bending of the railcar enables bending and twisting of the frame to maintain the first and second bogie assemblies in contact with the railway, especially when traveling along a bend or slope.