BOGIE FOR HIGH-SPEED RAILWAY VEHICLE

A bogie for a high-speed railway vehicle includes a wheel set, an axle box, a primary spring suspension device, a frame, a secondary spring suspension device and a foundation braking device. A wheel of the wheel set has an LMA wheel tread. The foundation braking device is mounted by a three-point hitch structure. The axle box is a structure which is separatable in a vertical direction, and an off-line safety protecting device is mounted at a lower portion of the axle box. A traction rod of the secondary spring suspension device is a single traction rod. A center pin is provided with an integral hoisting device. Two anti-yaw dampers, as a group, are arranged at either side of the secondary spring suspension device, and the two anti-yaw dampers have the same damping coefficient. 1. A bogie for a high-speed railway vehicle , comprising a wheel set , an axle box , a primary spring suspension device , a frame , a secondary spring suspension device , and a foundation braking device ,wherein a wheel of the wheel set has an LMA wheel tread,the foundation braking device is mounted by a three-point hitch structure,a brake hitching seat of the foundation braking device and a tread cleaning device mount are integrated on the frame into an integral structure,the axle box is a structure which is separatable in a vertical direction, and a fusible temperature sensor and a real time temperature sensor are mounted at an upper portion of the axle box for monitoring the temperature in the axle box together,an off-line safety protecting device is mounted at a lower portion of the axle box,a traction rod of the secondary spring suspension device is a single traction rod, and a center pin is provided and an integral hoisting device is mounted on the center pin, andtwo anti-yaw dampers, as a group, are arranged at either side of the secondary spring suspension device, and the two anti-yaw dampers have the same damping coefficient.2. The bogie for the high-speed railway vehicle according to ...

HIGH-SPEED RAIL TRAIN BOGIE AND FRAME THEREOF

A high-speed rail train bogie frame includes side sills and cross beams located between the side sills, and each of the side sills is provided with an air spring seat configured to install an air spring; wherein each of the cross beams has a seamless steel tube structure; the frame further includes a passage, and a main air chamber of the air spring and a cavity of the cross beam are in communication with each other through the passage; and an anti-roll bar seat configured to install an anti-roll bar is welded below the side sill, and the anti-roll bar seat is in a circular arc transition with a bottom of the side sill, to form a dovetail structure. 1. A frame for a bogie of a high-speed railway train , comprising side sills and cross beams located between the side sills , and each of the side sills being provided with an air spring seat configured to install an air spring; wherein each of the cross beams has a seamless steel tube structure; the frame further comprises a passage , and a main air chamber of the air spring and a cavity of the cross beam are in communication with each other through the passage; and an anti-roll bar seat configured to install an anti-roll bar is welded below the side sill , and the anti-roll bar seat is in a circular arc transition with a bottom of the side sill , to form a dovetail structure.2. The frame for the bogie of the high-speed railway train according to claim 1 , wherein the frame further comprises an air chamber which is arranged longitudinally claim 1 , two ends of the air chamber are respectively in communication with two of the cross beams claim 1 , and the passage is in communication with the air chamber claim 1 , to be in communication with the cavity of each of the cross beams.3. The frame for the bogie of the high-speed railway train according to claim 2 , wherein two ends of the air chamber are respectively fixed on inner side walls of the respective cross beams by welding claim 2 , the inner side wall of each of the ...

RAILWAY VEHICLE AND AXLE BOX STRUCTURE THEREOF

A railway vehicle and an axle box structure thereof are provided. The axle box structure includes an axle box body and a positioning joint mounting seat, and a bearing mounting cavity is provided inside the axle box body. The positioning joint mounting seat is provided with a mounting cavity configured to mount a positioning joint, a longitudinal center line of the axle box body is in parallel with a longitudinal center plane of the positioning joint mounting seat, and the longitudinal center plane of the positioning joint mounting seat is outwardly deviated with respect to a longitudinal center plane of the axle box body. In this way, a large space can be left for mounting the brake clamp, and the mounting and replacing of the brake clamp and the wheel set can be facilitated. 1. An axle box structure for a railway vehicle , comprisingan axle box body, anda positioning joint mounting seat,whereina bearing mounting cavity is provided inside the axle box body, the positioning joint mounting seat is provided with a mounting cavity configured to mount a positioning joint, wherein a longitudinal center line of the axle box body is in parallel with a longitudinal center plane of the positioning joint mounting seat, and the longitudinal center plane of the positioning joint mounting seat is deviated outwardly with respect to a longitudinal center plane of the axle box body.2. The axle box structure for the railway vehicle according to claim 1 , wherein the axle box body has a separated structure claim 1 , comprising an upper box body and a lower box body which are in a seal fit with each other claim 1 , the upper box body and the lower box body enclose to form the bearing mounting cavity claim 1 , the upper box body and the lower box body are connected by bolting claim 1 , and the positioning joint mounting seat and the upper box body are integrally formed.3. The axle box structure for the railway vehicle according to claim 2 , wherein a lower end surface of the upper box ...

METHOD AND APPARATUS FOR CONTROLLING ANTI-YAW DAMPER

Provided is a method for controlling an anti-yaw damper, including: obtaining lateral acceleration signals of a frame and performing a first preprocessing on the lateral acceleration signals; obtaining a pressure difference between two chambers of an anti-yaw damper piston and performing a second preprocessing of the pressure difference; obtaining an MPPT algorithm objective function value at the current moment and an MPPT algorithm objective function value at the previous moment according to first preprocessing results and second preprocessing results, and comparing the MPPT algorithm objective function value at the current moment with the MPPT algorithm objective function value at the previous moment; and controlling the adjustment direction of an electromagnetic proportional valve of the anti-yaw damper according to the comparison result. According to the method, the damping force of the anti-yaw damper can be adjusted in real time, therefore the adaptability of the damper in different wheel wear conditions and the kinetic stability of a motor train unit are improved. Also provided is an apparatus for controlling an anti-yaw damper. 1. A method for controlling an anti-yaw damper , comprising:obtaining lateral acceleration signals of a frame and performing a first preprocessing on the lateral acceleration signals;obtaining a pressure difference between two chambers of a piston of an anti-yaw damper and performing a second preprocessing on the pressure difference;obtaining an MPPT algorithm objective function value at the current moment and an MPPT algorithm objective function value at the previous moment according to first preprocessing results and second preprocessing results, and comparing the MPPT algorithm objective function value at the current moment with the MPPT algorithm objective function value at the previous moment; andcontrolling the adjustment direction of an electromagnetic proportional valve of the anti-yaw damper according to the comparison result ...

Railway vehicle and axle box structure thereof

A railway vehicle and an axle box structure thereof are provided. The axle box structure includes an axle box body and a positioning node mounting seat. The axle box body includes an upper box body and a lower box body. The upper box body and the lower box body enclose a bearing mounting chamber together. A lower end surface of the upper box body has a convex portion, and an upper end surface of the lower box body has a concave portion. A first semi-circular hole and a second semi-circular hole are respectively provided at the middle of the upper box body and the lower box body. If the convex portion and the concave portion are assembled in a sealed coupling manner, the bearing mounting chamber is formed by the first semi-circular hole and the second semi-circular hole.

BOGIE OF A RAIL VEHICLE WITH AT LEAST TWO WHEELSETS MOUNTED IN AXLEBOXES AND AT LEAST ONE TRANSVERSE MEMBER

The invention relates to bogies for railway vehicles with at least two wheelsets mounted in axleboxes and at least one transverse member. The bogies are in particular characterized in that they have a lightweight design and can be produced at low cost. The axleboxes of a wheelset are articulated to the transverse member via two axle levers so that the axle levers form an H shape with the axleboxes and the transverse member. The transverse member has at least two torsion bars arranged in parallel to the axles of the wheelsets, said torsion bars being firmly connected to the transverse member. The torsion bars have spring levers so that the end portion of the spring lever not connected to the torsion bar acts upon the axlebox. 1. A bogie of a rail vehicle with at least two wheel sets mounted in axle box bearings and at least one cross member , wherein the axle box bearings of a wheel set are connected in an articulated manner to the cross member via two axle levers , with the result that the axle levers form an H shape with the axle box bearings and the cross member , that the cross member has at least two torsion bars arranged parallel to the axles of the wheel sets , that the torsion bars have at least one area in which they are connected in a rotationally fixed manner to the cross member , and that the torsion bars have spring levers such that the end area , not connected to the torsion bar , of the spring lever acts on the axle box bearing.2. The bogie according to claim 1 , wherein two torsion bars are arranged one after the other in longitudinal direction on the cross member claim 1 , that the ends facing each other of the torsion bars are connected with their end areas to the cross member and that the other ends of the torsion bars comprises the spring levers.3. The bogie according to claim 1 , wherein the cross member has an H shape in cross section claim 1 , that the end areas of a torsion bar loosely penetrate the opposite arms of the cross member claim 1 , ...

Bogie of a railway vehicle with at least two mounted axles supported by axle boxes and at least one cross member

Bogie de un vehículo ferroviario con al menos dos ejes montados (3) apoyados en cajas de grasa (4) y al menos un travesaño (1), estando las cajas de grasa (4) de un eje montado (3) conectadas de manera articulada al travesaño (1) a través de dos palancas de eje (2) de tal modo que las palancas de eje (2) forman con las cajas de grasa (4) y con el travesaño (1) una forma de H, por que el travesaño (1) presenta al menos dos barras de torsión (5) dispuestas en paralelo a los ejes (8) de los ejes montados (3), caracterizado por que las barras de torsión (5) presentan al menos una zona en la que están conectadas de manera resistente al giro al travesaño (1) y por que las barras de torsión (5) presentan palancas de resorte (6) de tal manera que la zona de extremo de la palanca de resorte (6) conectada a la barra de torsión actúa sobre la caja de grasa (4). Bogie of a railway vehicle with at least two mounted axles (3) supported on axle boxes (4) and at least one cross member (1), the axle boxes (4) of a mounted axle (3) being articulated connected to the cross member (1) through two axle levers (2) in such a way that the axle levers (2) form an H-shape with the axle boxes (4) and with the cross member (1), because the crossbar (1) has at least two torsion bars (5) arranged in parallel to the axes (8) of the mounted axles (3), characterized in that the torsion bars (5) have at least one area in which they are rotatably connected to the crossbar (1) and because the torsion bars (5) have spring levers (6) in such a way that the end area of the spring lever (6) connected to the torsion bar acts on the axle box (4).

Bullet train gauge-changeable bogie for railway vehicle

A bullet train gauge-changing bogie for a railway vehicle comprises a frame, wherein wheels (10) of the gauge-changing wheelset are mounted with wheel-mounted brake discs (100); each of the side beams (20) or each of the cross beams is mounted with a brake clamp (1) and a mounting seat (2), and the brake clamp (1) is connected with the mounting seat (2) by support pins (3): the support pins (3) are horizontally disposed below the mounting seat (2), and both ends thereof are fixedly connected with the mounting seat (2), one end of the brake clamp (1) is provided with a connecting sleeve; the connecting sleeve is firmly sleeved with damping inner sleeves (4) with elastic damping; the connecting sleeve is locked on the support pins (3) through the damping inner sleeves (4). When the thrust on the connecting sleeve is greater than the damping force between the connecting sleeve and the support pins (3), the connecting sleeve drives the brake clamp (1) to move along the support pins (3).

Semi-active anti-hunting damper, damping system and vehicle

Disclosed are a semi-active anti-hunting damper (100), a damping system and a vehicle. When a piston (2) of the semi-active anti-hunting damper (100) moves in a reciprocating manner inside a hydraulic cylinder (1), the interior of the hydraulic cylinder (1) is divided into two cylinder bodies (PA, PB). The semi-active anti-hunting damper (100) comprises at least two parallel branches (B1, B2), two ends of each of the branches (B1, B2) are respectively in communication with the two cylinder bodies (PA, PB), each of the branches (B1, B2) is respectively provided with an adjustable electromagnetic valve (PV), and the adjustable electromagnetic valve (PV) is used for adjusting a damping coefficient of the semi-active anti-hunting damper (100) when the semi-active anti-hunting damper (100) is in a semi-active mode.

Gauge-changeable wheelset

Gauge-changeable wheelset

Locking mechanism for gauge-changeable wheel set, gauge-changeable wheel set and gauge-changeable bogie

A locking mechanism (3) of a gauge-changing wheelset, a gauge-changing wheelset and a gauge-changing bogie. The locking mechanism includes: a traction electromagnet (32) and a locking pin (33), the traction electromagnet (32) includes a traction coil (32-1) and a movable core (32-2) being controlled to move by turning on and off the traction coil (32-1), the locking pin (33) is fixedly connected to an end of the movable core (32-2) away from the traction coil (32-1), a plurality of locking holes (41) are disposed on an inner hub of each of wheels (4) at intervals in an axial direction, and the movable core (32-2) may drive the locking pin (33) to insert into or remove from the locking holes (41) to lock or unlock the wheels (4). The gauge-changing wheelset includes wheels (4) and an axle (5) splined to the wheels, a locking mechanism (3) and lateral drive mechanisms (1), both ends of the axle (5) located outside the wheels (4) are respectively supported in an axle box body (7); the locking mechanism (1) is respectively disposed on the inner side of each of the wheels (4), the lateral drive mechanisms (1) are respectively disposed on the outer side of each of the wheels (4), and is fixed on the axle box body (7), the lateral drive mechanism (1) includes an electric cylinder (11) having an extension end for pushing or pulling unlocked wheels to change the gauge of wheels.

Wheel mounting bushing for variable-gauge wheelset, and variable-gauge wheelset

Mechanizm blokujący do zestawu kołowego o zmiennym rozstawie kół, zestaw kołowy o zmiennym rozstawie kół i wózek o zmiennym rozstawie kół

Mecanismo de bloqueo para juego de ruedas ajustable al ancho de vía, juego de ruedas ajustable al ancho de vía y bogie ajustable al ancho de vía

Un mecanismo de bloqueo (3) para un juego de ruedas de ancho cambiable y el juego de ruedas de ancho cambiable, en donde el mecanismo de bloqueo (3) comprende un electroimán de tracción (32) y un pasador de bloqueo (33), en donde el electroimán de tracción (32) comprende una bobina de tracción (32-1) y un núcleo de hierro móvil (32-2) que se controla para moverse mediante el encendido y apagado de la bobina de tracción (32-1), el pasador de bloqueo (33) está conectado fijamente a uno En el extremo, alejado de la bobina de tracción (32-1), del núcleo de hierro móvil (32-2), se forman una pluralidad de orificios de bloqueo (41) en el cubo lateral interior de una rueda (4) a intervalos a lo largo del eje axial. En esta dirección, el núcleo de hierro móvil (32-2) puede impulsar el pasador de bloqueo (33) para alcanzar o salir de los orificios de bloqueo (41), para bloquear o desbloquear la rueda (4). El juego de ruedas de ancho variable comprende las ruedas (4), ejes (5) conectados con las ruedas (4) a través de estrías, el mecanismo de bloqueo (3) y un mecanismo de accionamiento lateral (1), donde los dos extremos de los ejes (5) en el exterior las ruedas (4) están apoyadas respectivamente en un cuerpo de caja de grasa (7); el mecanismo de bloqueo (3) está dispuesto respectivamente en el lado interior de cada rueda (4), el mecanismo de accionamiento transversal (1) está dispuesto respectivamente en el lado exterior de cada rueda (4), y está fijado en el cuerpo de la caja de grasa (7), el mecanismo de accionamiento transversal (1) comprende un cilindro eléctrico (11), el extremo extendido del cilindro eléctrico (11) se utiliza para empujar o tirar de las ruedas desbloqueadas (4), para realizar el cambio de ancho de vía. ruedas (4). (Traducción automática con Google Translate, sin valor legal)

Zestaw kołowy ze zmiennym rozstawem kół

Method and apparatus for controlling anti-yaw damper

Provided is a method for controlling an anti-yaw damper, including: obtaining lateral acceleration signals of a frame and performing a first preprocessing on the lateral acceleration signals; obtaining a pressure difference between two chambers of an anti-yaw damper piston and performing a second preprocessing of the pressure difference; obtaining an MPPT algorithm objective function value at the current moment and an MPPT algorithm objective function value at the previous moment according to first preprocessing results and second preprocessing results, and comparing the MPPT algorithm objective function value at the current moment with the MPPT algorithm objective function value at the previous moment; and controlling the adjustment direction of an electromagnetic proportional valve of the anti-yaw damper according to the comparison result. According to the method, the damping force of the anti-yaw damper can be adjusted in real time, therefore the adaptability of the damper in different wheel wear conditions and the kinetic stability of a motor train unit are improved. Also provided is an apparatus for controlling an anti-yaw damper.

Método y aparato para controlar un amortiguador antiguiñada

Se proporciona un método para controlar un amortiguador anti-guiñada. El método comprende: adquirir una señal de aceleración transversal de una estructura y realizar un primer procesamiento previo de la señal de aceleración transversal; adquirir la diferencia de presión entre dos cavidades de pistón de un amortiguador antigiro y realizar un segundo procesamiento previo de la diferencia de presión; obtener, según un primer resultado de preprocesamiento y un segundo resultado de preprocesamiento, un valor de la función objetivo del algoritmo MPPT del momento actual y un valor de la función objetivo del algoritmo MPPT del momento anterior, y comparar el valor de la función objetivo del algoritmo MPPT del momento actual con el Valor de la función objetivo del algoritmo MPPT del momento anterior; y controlar, según un resultado de comparación, una dirección de ajuste de una válvula proporcional electromagnética del amortiguador antidesvío. Según el método, se puede ajustar en tiempo real la fuerza de amortiguación de un amortiguador antigiro, mejorando así la adaptabilidad del amortiguador en diferentes estados de desgaste de las ruedas y la estabilidad cinética de una unidad de tren de motor. También se proporciona un aparato para controlar un amortiguador anti-guiñada. (Traducción automática con Google Translate, sin valor legal)

Semi-active anti-yaw damper, damping system and vehicle

A semi-active anti-yaw damper (100), a damping system and a vehicle are provided. When a piston (2) of the semi-active anti-yaw damper (100) reciprocates in the hydraulic cylinder (1), an interior of the hydraulic cylinder (1) is divided into two cylinder blocks (PA, PB). The semi-active anti-yaw damper (100) includes at least two parallel branches (B1, B2), the two ends of each of the parallel branches (B1, B2) are connected to the two cylinder blocks (PA, PB), respectively, and each of the parallel branches (B1, B2) is provided with an adjustable solenoid valve (PV), and the adjustable solenoid valve (PV) is configured to adjust a damping coefficient of the semi-active anti-yaw damper (100) when the semi-active anti-yaw damper (100) is in a semi-active mode.

Juego de ruedas con cambio de ancho de vía

Un juego de ruedas de ancho variable, que comprende ruedas (6), un eje (7) y mecanismos de bloqueo; las ruedas (6) están dispuestas respectivamente en cada extremo del eje (7) y están conectadas al eje (7) mediante estrías; los mecanismos de bloqueo están proporcionados respectivamente en el exterior de las ruedas (6) y ubicados en cajas de grasa en cada extremo del eje (7), estando conectados los mecanismos de bloqueo a las ruedas (6) y utilizándose para bloquear y desbloquear las ruedas (6), para realizar un cambio de ancho de las ruedas (6). El juego de ruedas de ancho variable tiene una estructura simple y requiere pocos cambios en las estructuras existentes del vehículo, lo que facilita la modificación masiva de los vehículos existentes y mejora la versatilidad y confiabilidad del juego de ruedas de ancho variable. (Traducción automática con Google Translate, sin valor legal)

Locking mechanism for gauge-changeable wheel set, gauge-changeable wheel set and gauge-changeable bogie

Railway vehicle and axle box structure thereof

A railway vehicle and an axle box structure thereof are provided. The axle box structure includes an axle box body and a positioning joint mounting seat, and a bearing mounting cavity is provided inside the axle box body. The positioning joint mounting seat is provided with a mounting cavity configured to mount a positioning joint, a longitudinal center line of the axle box body is in parallel with a longitudinal center plane of the positioning joint mounting seat, and the longitudinal center plane of the positioning joint mounting seat is outwardly deviated with respect to a longitudinal center plane of the axle box body. In this way, a large space can be left for mounting the brake clamp, and the mounting and replacing of the brake clamp and the wheel set can be facilitated.