40results about "Bogie-underframe connections" patented technology

The application belongs to the technical field of high-speed track mechanical equipment, and discloses a secondary suspension mechanism for track locomotive vehicles, which comprises a secondary suspension mechanism body and a drying drainage part. The secondary suspension mechanism body comprises a bogie and two air springs and four hydraulic springs. The two air springs mounted on the bogie serve as elastic elements for buffering vertical vibration and improving riding comfort. The four hydraulic springs mounted between the side beam of the bogie frame and the vehicle body bottom frame serve as load-carrying force transmission paths. The filter disc structure is internally provided with drying particles for dehumidifying the gas entering the air spring. A micro motor is used to drive the filter disc to rotate by 180 degrees, so as to realize automatic replacement of the failed drying agent. The automatic reciprocating movement of the rubber pressure plate can extrude and discharge the condensed water in the piston cylinder. The intermittent blocking design of the arc-shaped baffle can ensure the sealing property of the gas storage tank during the drainage process.

The utility model relates to railway vehicle engineering technical field more specifically, especially, especially relates to a multipurpose four axle combined type railway locomotive bogie, include: traction seat, bogie frame, crossbeam, the bogie frame sets up in the both ends of traction seat, and crossbeam fixedly set up in the middle position of bogie frame body, secondary suspension spring is installed in the top of crossbeam, and secondary oil pressure shock absorber is installed on the outer wall of bogie frame both sides, and one end of secondary oil pressure shock absorber is movably connected with bogie frame, the utility model discloses the improvement of multipurpose four axle combined type railway locomotive bogie has good strength, long life, safe and reliable, high efficiency, can guarantee the high -efficient work of more safe and stable, most parts can also realize the commonality with the currently large -scale use locomotive, to save the advantage of use cost, thereby effectively solve the problem and the deficiency in prior art and equipment.

The application discloses a central traction device of a rail vehicle bogie and a bogie with an axle box built-in, which comprises a traction seat, a traction connecting seat and a transverse semi-active suspension device; the traction seat comprises a horizontal seat plate and a switching body, a vertical damper connecting seat is arranged on the horizontal seat plate, and the switching body is connected with the traction connecting seat; a first transverse damper mounting seat, a hoisting device mounting seat, a transverse stop mounting seat and a first traction rod mounting seat are arranged on the traction connecting seat; the transverse semi-active suspension device comprises a first vibration monitoring element for monitoring the vibration of a vehicle body, a second vibration monitoring element for monitoring the vibration of a frame, a semi-active transverse damper for inhibiting the transverse vibration of the vehicle body and a controller for signal processing, and the controller is used for adjusting the damping force of the semi-active transverse damper according to the monitoring information of the first vibration monitoring element and the second vibration monitoring element. The application can adaptively adjust the damping force of the transverse damper and reduce the operation and maintenance cost of the vehicle in the whole life cycle.

The invention relates to the technical field of vehicles, in particular to an air spring rigidity adjusting system and a vehicle. The air spring rigidity adjusting system comprises two air spring sets which are oppositely arranged on the two sides of the vehicle, and each air spring set comprises at least one air spring. The air storage device comprises at least two air storage cylinders, and the air springs are connected with the air storage cylinders through air paths; the valve group comprises a plurality of valves, and the plurality of valves are respectively arranged in the gas path; the air spring is used for being communicated with different air storage cylinders through opening and closing of the multiple valves. The air springs are communicated with the air storage cylinders with different volumes to adjust the rigidity of the air springs, so that the rigidity of the air springs on the two sides of the vehicle can be changed, the rigidity of the air springs on the two sides of the vehicle can be switched in real time according to the driving condition of the vehicle during driving, and the vehicle obtains excellent stability and trafficability.

The invention relates to a chassis (100), in particular a low-floor chassis, for a rail vehicle, especially a tram. The chassis (100) comprises at least four wheels (4), each with a wheel bearing, at least two wheel axles for suspending the wheels (4), a chassis frame (1), and a primary suspension for suspending the wheels (4) relative to the chassis frame (1). The primary suspension has at least four torsion bars (20). Two torsion bars (20), in particular two torsion bars on one side of the chassis, are connected via a connecting element (21) such that the torques of the torsion bars (20) are opposite in direction, and in particular, the torques essentially cancel each other out.

This utility model discloses a bogie static pressure adjustment device, relating to the field of railway vehicle bogie design and control technology. It includes a main crossbeam, with controllers installed on both sides of its upper surface. Shock-absorbing components are mounted on both sides of the main crossbeam, and side support beams are mounted on the outer surfaces of the shock-absorbing components. Through-measuring units are installed at the four corner ends of the side support beams. Compared with existing ordinary bogie static pressure adjustment devices, this bogie static pressure adjustment device automatically optimizes the static pressure distribution of the wheelsets through controller-controlled hydraulic push rods, dynamically balancing wheel weight: it adjusts the vertical load of each wheelset in real time, reducing uneven loading caused by track irregularities or uneven loads, and reducing abnormal wear on wheel flanges and rail surfaces. It also results in low maintenance costs: uniform wheel-rail contact force distribution reduces abnormal wear and extends the service life of wheelsets, rails, and key bogie components.

This invention discloses a modular shock-absorbing bogie for easy disassembly in rail vehicles. The invention relates to the field of rail vehicle shock-absorbing steering technology. Two modular bogie bodies are connected to a square connector and a round connector on their sides, respectively, to define the positions of the two modular bogie bodies. An L-shaped groove is provided on the side of the square connector closest to the round connector. An L-shaped bracket is slidably connected to the outer wall of the round connector to engage with the L-shaped groove. A hollow hole is provided on the left side of the round connector. The advantages of this invention are: it achieves rapid insertion and reliable locking between the two modular bogie bodies; it is easy to operate, requires no large number of auxiliary tools, significantly improves the efficiency of modular bogie assembly and disassembly, shortens maintenance downtime, and the indicator block provides real-time and intuitive judgment of whether the L-shaped bracket has been fully engaged in the L-shaped groove, effectively avoiding safety hazards such as omissions or mis-installation, and improving the reliability of installation operations.

The application discloses a kind of freight train K6 type bogie fixed-frequency secondary suspension structure and design method, it is related to the technical field of rail transit, it solves the problem that traditional secondary suspension is linear spring, the adaptability of train for different load conditions is poor, cannot provide consistent vibration isolation performance under different load conditions, the left and right sides of car body are respectively provided with one bogie side frame, each bolster is installed in one bogie side frame along vertical direction, a vertical steel spring group is installed between the lower surface of bolster and bogie side frame;Bolster's front and rear ends are respectively provided with one outside transfer frame, one inclined steel spring is provided in each outside transfer frame, the application utilizes nonlinear fixed-frequency vibration isolation characteristics, can ensure that the initial vibration isolation frequency of bogie secondary suspension remains unchanged when vehicle is under different loads, to realize consistent vibration isolation performance under different load conditions.

The present invention relates to a three-point support device (30) for a vehicle body (32), the device (30) comprising: a. a first bogie (40) adapted to support the body (32) by a first support point, the first support point being formed by two first secondary air suspensions (50) pneumatically linked or by a central emergency suspension (52) when the first secondary air suspensions (50) are malfunctioning, and b. a second bogie (42) adapted to support the body (32) by a second and a third support point, each of the second and third support points being formed by a separate second secondary air suspension (70) or by a lateral emergency suspension (72) associated with said second secondary air suspension (70) when said second secondary air suspension (70) is malfunctioning.

Provided is a rail vehicle that efficiently transmits, to a railway vehicle structure, an oscillating force transmitted from a bogie to an underframe via a yaw damper and a yaw damper support portion, and that has sufficient strength. The underframe includes a floor portion, a side beam, and a bolster beam. A side structure is erected on an end portion in a vehicle width direction of the underframe. The bogie supports the underframe from below the underframe. A yaw damper receiving portion is provided to the end portion in the vehicle width direction of the underframe. The yaw damper support portion is fixed to the yaw damper receiving portion. The yaw damper includes one end portion connected to the bogie and the other end portion connected to the yaw damper support portion. The yaw damper is configured to reduce yawing oscillation of the bogie. The yaw damper receiving portion is provided to extend along the side structure, the side beam, and the bolster beam.

To provide a railway vehicle that reduces the possibility of derailment during an earthquake by suppressing vehicle sway and relative displacement between the car body and bogie, which cause a decrease in wheel load, and further by suppressing air leakage from the air springs. [Solution] The vehicle comprises a pair of air springs located between the vehicle body and the bogie, a pair of vertical vibration damping devices arranged in parallel with the air springs and capable of changing the generated force, and an earthquake detection means for detecting earthquakes. The vertical vibration damping devices can be switched between a ride comfort priority mode and an earthquake mode in response to a signal from the earthquake detection means, in which case the generated force is greater than that of the ride comfort priority mode. In the earthquake mode, the generated force on the extension side of the vertical vibration damping devices is smaller than the generated force on the compression side.

The utility model relates to the technical field of rail vehicle bogie, and disclose a kind of rail vehicle bogie lateral damper structure, including bogie, lateral rod and the linear bearing of lateral rod upper sleeve, the both ends of lateral rod are slidably connected with mounting block, and the one end of mounting block is equipped with the sliding cavity matched with lateral rod, the outer wall of lateral rod is equipped with the symmetrical first spring, and one end of first spring is fixedly connected with linear bearing, and other end is fixedly connected with mounting block;This kind of rail vehicle bogie lateral damper structure, by first spring, mounting block can be fixed in the inside of installation groove, further by limiting component, mounting block can be fixed in the inside of installation groove, so that the stability of the device operation is higher, after releasing limiting component, simultaneously pulling the mounting block of lateral rod both ends makes it separate from the installation groove on bogie, lateral rod can be disassembled, so that the disassembly of lateral rod is more convenient.

The application discloses an air spring pressure reducing device and a railway vehicle, and relates to the technical field of railway vehicles. The air spring pressure reducing device comprises a second air spring, a first air spring, a height valve and a balance valve. The second air spring is arranged at the head end of a vehicle body, and the first air spring is located at the rear side of the second air spring. The height valve is communicated with the second air spring and the first air spring, and is used for conveying gas to the second air spring and the first air spring respectively. The output port pressure of the balance valve is half of the input port pressure. The balance valve is arranged between the second air spring and the first air spring, and is used for making the pressure of the second air spring half of the pressure of the first air spring. The air spring pressure reducing device solves the problem that the pressure of the two air springs at the head end of the vehicle body cannot be made half of the pressure of other air springs.

The utility model discloses a kind of train transverse blocks for urban rail, involve rail transit technical field.The utility model includes connecting plate, and the adjusting plate of being arranged at its front, the outer wall middle part of four around adjusting plate is solid with side plate, the outside of adjusting plate is provided with adjusting assembly, the front end surface four around adjusting plate is provided with buffer assembly.The utility model passes through adjusting assembly, the distance between adjusting plate and connecting plate is adjusted using multiple screw rods, to adapt to different line conditions or vehicle load change, wide application range, and using buffer assembly, on the basis of the buffer of rubber part, increase spring, further improve the ability of buffer impact force, reduce noise and vibration.

The invention relates to a suspension device (1) for a rail vehicle, the suspension device being designed to be provided between a car body (2) and a bogie frame (3), comprising at least one air spring (4) and an emergency spring (5) in series with the air spring (4), wherein a compression device (6) is provided which is acted upon by a fluid pressure (8), the fluid pressure being proportional to the pressure (7) in the air spring (4), and compresses the emergency spring (5) as a function of the fluid pressure (8).

The invention relates to a method for parameterizing the chassis (2) of rail vehicles (1) with a chassis (2) having controllable properties, the method comprising the steps of: - determining geometric parameters (G) of a track system (5) during the movement of a number of rail vehicles (1), wherein sensors (4) on the respective rail vehicle (1) repeatedly measure an area of ​​the track system (5) in the vicinity of the rail vehicle (1) and geometric parameters (G) are determined from the measured values, - determining a track position (P) of the respective measurements, wherein the track position (P) corresponds to the measured position of the track system (5), - creating a state map (Z) of the track system (5) by entering the geometric parameters (G) at positions on the state map (Z) that correspond to their track position (P), - setting parameters of a chassis (2) of a moving rail vehicle (1) based on the state map (Z).wherein, within a defined period before passing a position of the track system (5), the chassis (2) is adjusted to the corresponding position on the state map (Z) based on the geometric parameters (G). Furthermore, the invention comprises a device, a rail vehicle, and a rail vehicle system.

An independent cart system with reduced particulate generation includes a mover configured to travel along a track. The mover includes wheels mounted to the mover, multiple sealing elements, and multiple dampening elements. Each wheel is operative to engage the track as the mover travels along the track, and each wheel includes a rolling bearing. At least one of the sealing elements is mounted adjacent to each rolling bearing for the wheels to prevent particulate generated by the rolling bearing from leaving the mover. The dampening elements reduce vibration on the mover as the mover travels along the track. A platform is mounted to an upper surface of a drive block for each mover by a fastener. At least one rolling bearing is mounted between the fastener and either the platform or the drive block.

The application discloses a waistband type air spring and a combination structure of a bolster, and the combination structure comprises the waistband type air spring and the bolster, wherein the bolster is provided with a through hole at a bolster lower cover plate, the air spring is inverted and the bottom of the air spring penetrates through the through hole, and the air spring is partially embedded in the interior of the bolster. The application also provides a vehicle bogie comprising the combination structure of the waistband type air spring and the bolster and a bogie side beam, and the top of the air spring is fixedly connected with the bogie side beam below. Compared with the prior art, the combination structure of the waistband type air spring and the bolster and the vehicle bogie have the advantages that the bending degree of the bolster can be designed to be smaller, the gap between the bolster and a bolster beam of a bogie frame is increased, the operation space of mounting bolts between a rotary support and a vehicle body is larger, and the mounting of fasteners is facilitated. Meanwhile, the smaller bending angle reduces the stress at the bending position, and the safety during the operation of the vehicle is improved.

The application discloses a kind of high-speed polishing trolley body stable operation control method, it is related to railway engineering machinery technical field, and its technical scheme main points are: obtaining preprocessed vibration acceleration signal, calculating vibration frequency and amplitude;Vibration acceleration signal, vibration frequency and amplitude are input into PID algorithm, and oil cylinder telescopic amount instruction and damping adjustment instruction are obtained;Oil cylinder telescopic amount instruction is sent to electro-hydraulic proportional valve, and controllable lifting oil cylinder telescoping is controlled;Damping adjustment instruction is sent to corresponding damping controller, and damper damping value is adjusted;Feedback data after the above control, adjustment is obtained, feedback data is compared with target value, if not meet target, then PID algorithm is fine-tuned twice, until meet target value. By constructing the linkage control mechanism of controllable lifting oil cylinder and semi-active suspension system, combined with "disturbance frequency-amplitude double-factor PID algorithm" and "diagonal coordination" layout, high-frequency disturbance is quickly inhibited, and the body stability and polishing precision are improved.

The present invention comprises: a plurality of measurement means for measuring the movement of passengers in each car of a train including a plurality of connected cars; and an abnormality detection means for comparing a measurement value of each of the plurality of measurement means with an abnormality determination value, and detects that an abnormality has occurred in the train, when the measurement value of at least one of the plurality of measurement means exceeds a range of the abnormality determination value.

The application discloses a kind of elastic side bearing assembly for railway vehicle, framework assembly and bogie, belong to railway vehicle bogie, including side bearing seat and side bearing body;Wherein, the middle part of side bearing seat is equipped with mounting block, the side bearing seat of mounting block two ends is equipped with positioning boss respectively, positioning boss is respectively installed with side bearing spring;The middle part of side bearing body is equipped with mounting sleeve, mounting block sliding installation is in mounting sleeve, the two ends of side bearing body are respectively arranged in the upper portion of side bearing spring;The inside of side bearing spring is equipped with stop piece, one end of stop piece is set through positioning boss, the other end of stop piece and side bearing body have set gap and form activity space.The application solves the problem of short service life of rubber spring in existing railway wagon side bearing, and can realize the elastic deformation of smaller set stiffness and longer set stroke according to actual situation, improves the vertical damping performance of vehicle, improves running stability, and cooperates with stop piece to improve safety.

The invention relates to a bogie for a rail vehicle characterized by a high lightweight construction potential. The bogie (1, 1*, 1**) according to the invention has, for primary suspension, a torsion spring system (12) in the inner volume of which a roll stabilizer having a torsion rod (11) is arranged in a torsionally movable manner. The roll stabilizer can be articulated to the car body of the rail vehicle or to the torsion spring system (12). The bogie (1, 1*, 1**) according to the invention advantageously has a particularly large installation space for built-in components.

There is a damper wedge for a railroad car truck. It has a friction member that rides on the wear plate of the side frame column of the railroad car truck. It has a non-metallic wear surface; a spring seat that, in use, engages a spring of the railroad car truck; and an inclined damper wedge surface having a primary angle, alpha, and a secondary angle, beta. The spring seat has an axial centerline. The inclined damper wedge surface has a curvature. The curvature has a working point. The damper wedge has a datum plane that is normal to said non-metallic wear surface and that contains said axial centerline. The axial centerline meets said inclined damper wedge surface at an intersection point that is the center of a contact patch. The working point is located in a central region of the contact patch, or working surface patch.

The present invention discloses a dust-proof device for the side bearings of railway freight cars. The device includes: an adjusting shim and a wear plate at the lower end of the upper side bearing body assembly, and an upper mounting seat is clamped between the adjusting shim and the wear plate; a lower mounting seat having the same shape as the bottom end face of the lower side bearing body assembly is movably installed between the lower side bearing body assembly and the bolster; a dust-proof cover is connected between the upper mounting seat and the lower mounting seat, and the upper interface of the dust-proof cover is clamped in the slot of the upper mounting seat, and the lower interface is clamped in the slot of the lower mounting seat; the dust-proof cover has a variable cross-section structure from top to bottom, and a variable cross-section telescopic corrugated structure is provided in the middle and lower parts of the dust-proof cover; when vertical or longitudinal displacement occurs between the upper side bearing body assembly and the lower side bearing body assembly, the telescopic corrugated structure can shrink or expand with the deformation. The dust-proof device of the present invention has no sand and dust entering inside, and can avoid the wear and corrosion of the internal components of the upper and lower side bearing structures caused by sand and dust to the greatest extent.

This invention relates to the field of rail vehicle technology, providing a train bogie and a rail vehicle. The train bogie includes a frame and a wheel drive system. The frame includes a load-bearing body and two leaf springs. A center pin channel is formed in the middle of the load-bearing body, and two mounting channels are formed along the longitudinal direction of the frame. The two leaf springs are respectively mounted in the two mounting channels. The wheel drive system includes a shaft core, a bushing, and two wheels. The shaft core is rotatably mounted inside the bushing. A gearbox is constructed on the bushing, and a driving gear is provided inside the gearbox. A driven gear is sleeved on the shaft core, and the driving gear and the driven gear mesh externally. The two wheels are respectively mounted on both ends of the bushing via bearings, and the two wheels are respectively connected to both ends of the shaft core via flexible plates. Each leaf spring has a pad at both ends, and the pad is connected to the bushing. The load-bearing body and leaf springs replace the original crossbeam and side beam structure, resulting in a significant weight reduction effect on the frame.

To provide a railway vehicle capable of reducing steady horizontal acceleration acting on passengers and of improving a smooth ride using the configuration that the stiffness of an air spring can be changed in conjunction with the relative displacement between a railway body and a bogie at the curve passing time of a railway vehicle.SOLUTION: A railway vehicle has an auxiliary tank, a pipeline, a valve mechanism, and a transmission mechanism. The auxiliary tank comprises a first air chamber and a second air chamber connected to air chambers. The pipeline connects the first air chamber and the second air chamber. The valve mechanism comprises a valve body capable of moving between the closed position to close the pipeline and the open position to open the pipeline. When a relative displacement occurs in the vertical direction from a neutral position between the vehicle body and the bogie, the transmission mechanism inputs the relative displacement, outputs the displacement for driving to the valve body, and can move the valve body from the open position to the closed position.SELECTED DRAWING: Figure 4

The utility model provides a kind of secondary suspension device, bogie and vehicle, it is related to rail transit vehicle technical field, secondary suspension device is applied to the frame of vehicle bogie;Frame includes crossbeam and side beam, side beam is connected in the bottom of crossbeam;Secondary suspension device includes spring connecting seat, air spring and vertical stop seat;Air spring is located outside crossbeam, and one end is installed on side beam, other end is installed on spring connecting seat;Air inlet that is communicated with air spring is opened on spring connecting seat;Horizontal damper is arranged between spring connecting seat and crossbeam side wall;Vertical damper is arranged between spring connecting seat and side beam;Vertical stop seat is located above spring connecting seat, and one end is fixedly installed on crossbeam, and stop gap is preset between spring connecting seat and vertical stop seat.Effectively prevent the vertical displacement out of control caused by air spring overfill, and the vibration attenuation efficiency is improved by the synergistic effect of multidirectional damper.