651results about "Bogie-underframe connections" patented technology

The invention provides a semi-active control type shock absorber for a railway vehicle, and relates to the technical field of shock absorbers, an oil storage cylinder is sleeved outside a working cylinder, and an oil storage cavity is arranged between the oil storage cylinder and the working cylinder; the piston valve assembly is fixedly arranged at one end of the piston rod, the piston rod and the piston valve assembly are both arranged in the working cylinder, and the piston valve assembly moves in the working cylinder through the piston rod and divides the internal space of the working cylinder into a compression cavity and a stretching cavity; a guide assembly is arranged on one side of the working cylinder, an oil storage cylinder base is arranged on the other side of the oil storage cylinder and the other side of the working cylinder, and the oil guide pipe is arranged in the oil storage cavity. The electromagnetic regulating valve assembly, the electromagnetic switch valve assembly and the damping valve assembly are all fixedly arranged on the side face of the oil storage cylinder base. According to the semi-active control type shock absorber, the requirements of different dampers at the same speed of a vehicle can be met, the semi-active control type shock absorber gradually replaces an original passive shock absorber so as to meet various types of damping requirements, and more comfortable and excellent riding experience is brought to passengers.

Provided is a rail car that is capable of efficiently transmitting vibrational forces that have been transmitted from a bogie via a yaw damper and a yaw damper support to an underframe to a rail car shell, and that is of a simple structure, sufficient mechanical strength, and light weight for reducing the amount of heat applied to perform welding and for allowing a nondestructive inspection to be performed with ease. The rail car includes a rail car shell, a bogie that supports the rail car shell, a yaw damper having an end connected to the bogie, and a yaw damper support to which another end of the yaw damper is connected. The rail car shell includes an underframe including a floor assembly providing a floor and a bolster beam joined to the floor assembly, and a pair of side structures erected at both transverse ends of the underframe. In this rail car, the yaw damper support is fixed to a transverse end of the bolster beam.

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).

A bogie assembly includes a bolster having a plate on which a rail vehicle is supported, and side frames disposed on opposite sides of the plate of the bolster. The side frames can have pedestal jaw ends that can couple with wheelsets of the rail vehicle. The side frames can have openings sized to receive the bolster and springs between spring seats of the side frames in the openings and the bolster. The side frames also can include unit guide pockets that can receive brake beams that move during engagement or release of brake shoes from wheels in the wheelsets. The unit guide pockets can be located below the spring seats in the side frames.

A system and method are disclosed enabling the use of electromagnetic engines to traverse a wheeled bogie assembly across a plurality of rails. The electromagnetic engines may be used within a rail assembly comprising four rails and a frog assembly. Further, the electromagnetic engines may be used to traverse between a straight path and a turnout path at a non-moving rail switch having a frog assembly. In one aspect, an algorithm for powering various coils is disclosed wherein the algorithm controls the power level to switch tracks connected to the frog assembly.

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 railway vehicle bogie shock absorber spring pressing plate easy to replace comprises a cross-shaped steel plate, and the width of a cross arm and the width of a vertical arm of the cross-shaped steel plate are larger than or equal to the outer diameter of a shock absorption spring. The length of a cross arm of the cross-shaped steel plate is smaller than or equal to the width of a spring bearing table top at the bottom of a central square frame of the railway vehicle bogie side frame, and the length of a vertical arm of the cross-shaped steel plate is smaller than or equal to the length of the spring bearing table top at the bottom of the central square frame of the bogie side frame. Damping springs are respectively arranged at the upper parts of two ends of a cross arm and two ends of a vertical arm of the cross-shaped steel plate. According to the utility model, the original rectangular spring pressing plate is replaced by the cross-shaped spring pressing plate, so that the four corners of the spring bearing table top cannot be covered by the spring pressing plate, and the shock-absorbing spring and the spring pressing plate can be conveniently disassembled and replaced under the condition that the car lifting jack is not used by placing the jack on the corners of the spring bearing table top to jack up the swing bolster; and the working efficiency is greatly improved, and the labor intensity of workers and the equipment maintenance cost are reduced.

A system for recovery of compressed air released by air suspensions of at least one railway vehicle or train is described, comprising: a first compressor (102), a compressed air drying device (103), a first pipe (106), a first tank (104), a non-return valve (107), a limiting valve (108), a second tank (109), a second pipe (220), at least one pneumatic spring (111), and a first control device (212). The system for recovery further comprises a third pipe (201) arranged to be connected to the pneumatic discharge port (112) of the at least one leveling valve (110) so as to receive compressed air discharged by the pneumatic spring (111), and a third tank (202) arranged to be connected to the third pipe (201) and to be supplied with compressed air provided by the third pipe (201).

An articulated bogie for a low-floor straddle-type monorail, comprising: a framework, a locomotion wheel assembly, a horizontal wheel assembly, foundation brakes, driving units, air springs, a traction articulation mechanism, traction rubber piles, shock absorbers, and the like. The articulated bogie is a two-axle bogie; the upper portion of the traction articulation mechanism is connected to two compartments respectively, achieving motion decoupling of adjacent compartments; and the lower portion of the traction articulation mechanism is connected to the traction center of the bogie to transfer loads such as traction force and braking force. The driving units are arranged in a tire assembly and are each integrated with a gear box and a motor; an interface is reserved at the gear box end to mount a locomotion tire assembly; and the motor end is directly and firmly connected to the framework. The bogie only occupies the upper space on a single side, thereby achieving the low-floor design of vehicles. The articulated bogie for a low-floor straddle-type monorail has a simple and compact structure, facilitates full utilization of the space at the ends of vehicles, reduces the number of horizontal wheel assemblies, and improves the utilization efficiency of parts of bogies.

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.

The invention relates to the technical field of air rail transportation, in particular to a power type bogie based on a box girder type base and an induction gap adjusting method. The power type bogie comprises a box girder type base, the box girder type base comprises a suspension gap located at the bottom and communicated with an inner cavity, first rails located on the two sides of the suspension gap are arranged at the bottom of the box girder type base, and an induction magnetic stator is fixedly arranged on the inner side of the top of the box girder type base. The bogie assembly comprises a bottom frame, a motor support arranged on the bottom frame and walking wheels arranged on the bottom frame; the top of the motor support is provided with a motor rotor having an induction gap with the induction magnetic stator, and the motor rotor is used for driving the bogie assembly to move under the action of magnetic force generated by the motor rotor and the induction magnetic stator. And the gap adjusting device is used for adjusting the size of the induction gap. A semi-closed base can be formed through the box girder type base, a bogie and other components are arranged in a box girder cavity, maintenance is convenient, the influence of weather is small, and the service life can be prolonged.

An adapter pad system including a roller bearing adapter and a roller bearing adapter pad for placement between a roller bearing and side frame pedestal roof of a three-piece railcar truck.

Disclosed in the present invention are a railway vehicle wheelset radial apparatus and a bogie thereof. The wheelset radial apparatus is formed by two auxiliary frames arranged front and back and two cross-arranged connecting rods, wherein the two auxiliary frames and the two connecting rods connected by round pins; the auxiliary frame is a U-shaped structure, and the middle of each transverse arm of the auxiliary frame sinks to form a surface-recessed structure; the transverse arm of the auxiliary frame is provided with a connecting rod mounting surface, configured to mount the connecting rods; the connecting rods are arranged in a crossed mode, and end portions thereof are located in the rod mounting surfaces and are in pin joint by means of round pins; the bogie comprises a wheelset, a bearing, a bolster component, a side frame component, a foundation braking apparatus, and a wheelset radial apparatus. By using the above wheelset radial apparatus, the connecting rods and the foundation braking apparatus both pass through a bolster assembling hole, the connecting rods are located at the lower side of the foundation braking apparatus, and the depth by which a center pin of the bogie is inserted into the bolster is greater than or equal to 160 mm. According to the present invention, not only the advantages such as good operation stability and excellent curve passing performance are ensured, but also the requirement that the bogie can adapt to assembling of different foundation braking apparatuses is met, so that the adaptability and versatility of the bogie are improved.

The invention relates to the technical field of railway vehicles, and provides a bullet train bogie and a railway vehicle, and the bullet train bogie comprises a framework and a wheel drive system. The framework comprises a bearing body and two plate springs, a center pin channel is formed in the middle of the bearing body, two installation channels are formed in the bearing body in the longitudinal direction of the framework, and the two plate springs are installed in the two installation channels respectively. The wheel driving system comprises a shaft core, a shaft sleeve and two wheels, the shaft core is rotationally installed in the shaft sleeve, a gear box is constructed on the shaft sleeve, a driving tooth is arranged in the gear box, the shaft core is sleeved with a driven tooth, the driving tooth is externally meshed with the driven tooth, and the two wheels are installed at the two ends of the shaft sleeve through bearings respectively and connected with the two ends of the shaft core through flexible plates respectively. Cushion blocks are arranged at the two ends of each plate spring respectively, and the cushion blocks are connected with the shaft sleeves. And the bearing main body and the plate spring replace the original cross beam and side beam structure, so that the lightweight effect of the framework is obvious.

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.

The utility model discloses a novel train bogie framework damping device, which belongs to the technical field of train bogie frameworks, and is characterized by comprising a framework body, a damping component is fixedly connected to the bottom of the framework body, a hydraulic component is fixedly connected to the bottom of the damping component, and the damping component comprises a supporting bottom. The supporting bottom is fixedly connected to the bottom of the framework body, the bottom of the supporting bottom is fixedly connected with a limiting block, and the bottom of the limiting block is fixedly connected with a sliding rod. Damping of the framework body is achieved by arranging the damping assembly, and the situation that the riding comfort of passengers is reduced due to strenuous vibration of the framework body in the running process is avoided; and meanwhile, damage to each connecting part of the framework body in vibration is reduced, so that the service life of the framework body is prolonged, the hydraulic assembly is arranged to be matched with the damping assembly, so that damping operation is assisted, the damping effect is enhanced, and the situation that the vibration is enhanced by springs in the damping assembly is avoided.

The utility model discloses an end connector of a tubular torsion arm of a hollow anti-side-rolling torsion bar, which comprises a joint ball and an annular joint sleeve which is wrapped on the peripheral surface of the joint ball and can rotate around the joint ball in multiple directions, two sides of the joint ball are exposed out of two sides of the annular joint sleeve, a radially arranged connecting hole is arranged on one exposed side of the joint ball, and the connecting hole is communicated with the annular joint sleeve. The end part of the tubular torsion arm is fixed with the joint ball in the connecting hole, and the joint sleeve is connected with the pull rod. The joint sleeve comprises a semi-annular outer half sleeve I, a semi-annular outer half sleeve II, an annular front inner half sleeve and an annular rear inner half sleeve, a semi-annular wear-resistant bushing I and a semi-annular wear-resistant bushing II are further arranged between the front inner half sleeve and the spherical surface of the joint ball as well as between the rear inner half sleeve and the spherical surface of the joint ball, and the wear-resistant bushing I and the wear-resistant bushing II are provided with smooth wear-resistant concave spherical surfaces. The torsion arm has the advantages that the problem that the tubular torsion arm cannot be directly connected with the pull rod is solved; the connection between the pull rod and the tubular torsion arm has a certain rotational degree of freedom, and can adapt to different working conditions.

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 invention discloses a tractor based on a hub reduction gear, comprising: a tractor main body comprising a tractor body, a frame and wheels; the driving system comprises a driving motor and a transmission module, the output end of the driving motor is connected with the transmission module through a transmission part, and the transmission module is connected with wheels; the braking system comprises a dry braking module and a hydraulic braking module, the dry braking module is connected to the transmission module, and the hydraulic braking module is connected to the dry braking module; when the tractor is adjusted from the full-load speed to the first speed state, the driving motor brakes, when the tractor is adjusted from the first speed state to the second speed state, the braking system brakes, and the speed of the first speed state is larger than that of the second speed state. The operation speed of the tractor can reach 15 km / h, dispatching operation in a production line of an internal combustion locomotive and a highway-railway tractor can be replaced, non-pulling wheel lathe operation can be completed in an auxiliary mode, and the tractor has the advantages of being easy to operate, convenient to maintain, high in operation efficiency, intelligent and the like.

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 provides a bogie structure suitable for a severe environment and an air rail system.The bogie structure comprises a bogie, the lower end of the bogie is used for being hinged to a vehicle body, a side rolling stop is arranged on the bogie and 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 vehicle gravitational moment, the wheel load shedding rate of the bogie is reduced, meanwhile, the side rolling backstop, the vertical backstop 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 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.