73results about "Axle-boxes mounting" patented technology

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

A roller bearing adapter pad system configured for use with a three-piece bogie, the roller bearing adapter pad system including a roller bearing adapter (599), an adapter pad. A roller bearing adapter configured to engage a roller bearing, the roller bearing adapter comprising: a coronal top surface (506); a bottom surface configured to engage the roller bearing; a first vertical shoulder and a second vertical shoulder (506) projecting upwardly from opposite lateral edges of the coronal top surface, each vertical shoulder having a lifting lug (600); a first longitudinal stop and a second longitudinal stop (504), the first longitudinal stop and the second longitudinal stop protruding upwardly from opposite longitudinal edges of the top surface; wherein the roller bearing adapter is symmetrical about the transverse center line and symmetrical about the longitudinal center line; and wherein the lift lug does not project laterally outward beyond the outer edge of each vertical shoulder. An adapter pad engaged with a roller bearing adapter and configured to engage with a side frame axle box cap, the adapter pad comprising: a continuous top plate having a central portion; first and second upwardly folded regions protruding upwardly from opposite edges of the central portion; a first transverse flange protruding outwardly from the first upwardly folded region, the first transverse flange having a first transverse edge; and a second transverse flange protruding outwardly from the second upwardly folded region, the second transverse flange having a second transverse edge, the continuous roof having a first longitudinal edge and a second longitudinal edge; a continuous bottom plate having a central portion; first and second upwardly folded regions protruding upwardly from opposite edges of the central portion; a first transverse flange protruding outwardly from the first upwardly folded region, the first transverse flange having a first transverse edge; and a second transverse flange protruding outwardly from the second upwardly folded region, the second transverse flange having a second transverse edge, the continuous base plate having a first longitudinal edge and a second longitudinal edge; and an elastomer member disposed between the top plate and the bottom plate; wherein the first and second laterally protruding flanges of the top plate and the first and second laterally protruding flanges of the bottom plate are disposed entirely above the vertical shoulder of the roller bearing adapter.

The invention discloses a power generation device for a bogie shaft end of a vehicle and a truck, and the power generation device for the bogie shaft end of the vehicle comprises a base which is suitable for being installed at the bogie shaft end of the vehicle; the input end of the transmission assembly is in power connection with the base; the output end of the transmission assembly is in power connection with the input end of the power generation device; wherein at least part of the transmission assembly is configured to be a flexible piece. According to the power generation device at the bogie shaft end of the vehicle, the power generation device does not need to be directly installed at the bogie shaft end of the vehicle, so that the dynamic load of the bogie shaft end of the vehicle is reduced, optimization of space arrangement is facilitated, and heat transfer between the power generation device and the bogie shaft end of the vehicle is facilitated.

The invention discloses a primary nonlinear vertical suspension system and a railway vehicle, and belongs to the technical field of railway vehicle dynamics and vibration control. The system comprises a first mounting support, a first spring mounting seat fixedly connected with the first mounting support, a conical spring arranged in the first spring mounting seat, a second spring mounting seat connected with the conical spring, and at least one pair of belleville springs arranged between the first spring mounting seat and the second spring mounting seat, the tray is fixedly connected with the second spring mounting seat; the spiral spring is arranged on the tray; the second mounting support is fixedly connected with the spiral spring; one end of the belleville spring is hinged to the second spring mounting base, and the other end of the belleville spring is hinged to the first spring mounting base. The technical problem that a primary suspension system adopted in the prior art affects the vertical stability of the railway vehicle due to the spring stiffness can be solved.

Provided is a shaft spring having excellent nonlinear spring characteristics and capable of reducing the risk of affecting durability. The shaft spring includes a shaft portion (6), an outer tube (2), and an elastic portion (3) interposed between the shaft portion (6) and the outer tube (2), the elastic portion (3) being formed by alternately laminating an elastic body layer (4) and a hard tube (5) in a concentric circle shape, and the shaft spring has a structure in which an annular elastic body support portion (7) extending outward in a radial direction is formed at a lower end of at least one of the shaft portion (6) and the hard tube (5), the elastic body layer (4) is formed to the elastic body support portion (7) in contact with an outer peripheral surface of the shaft portion (6) or the hard tube (5) in which the elastic body support portion (7) is formed, and when an outer diameter of the elastic body support portion (7) is set to a certain degree or more or when a load in an axial direction is applied to the shaft spring, a part of the load is applied to the elastic body support portion (7).

The application discloses a railway wagon running device and relates to the technical field of running devices, which comprises two symmetrical bottom frame mounting seats, axle box assemblies arranged on the corresponding bottom frame mounting seats, wheel pairs connected between the two axle box assemblies through bearings at two ends, a brake device arranged between the two bottom frame mounting seats and fixed below a vehicle body bottom frame, a traction pull rod arranged between the axle box assemblies and the bottom frame mounting seats in cooperation, two suspension springs, a vertical hydraulic shock absorber and a transverse hydraulic shock absorber. The application has the advantages of compact structure, light weight, reduced self weight of the whole vehicle, improved vehicle operation benefit, stable vehicle operation ensured by the cooperation of the suspension springs, the vertical hydraulic shock absorber and the transverse hydraulic shock absorber.

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 invention provides a torpedo tank car braking system and a torpedo tank car. The torpedo tank car braking system comprises an air compressor, a pressure storage tank, a parking air path and a braking air path. The parking air path comprises a parking manual valve and a parking electromagnetic valve; the braking air path comprises an emergency electromagnetic valve, a proportional valve, a reversing valve and an operating valve. The torpedo tank car comprises a driven walking mechanism, a driven end shaft seat, a tank body, a driving end shaft seat, a driving walking mechanism and a machine room. The two ends of the tank body are connected with the driven end shaft seat and the driving end shaft seat respectively and arranged on the driven walking mechanism and the driving walking mechanism through center plates respectively, and the mechanical room is arranged on the driving walking mechanism. According to the torpedo tank car braking system and the torpedo tank car, autonomous control and autonomous air supply are completely achieved, the problems that a locomotive head traction type torpedo tank car is high in cost and low in efficiency are solved, and the problem that an underframe and a braking system of an autonomous advancing type torpedo tank car are not suitable is solved.

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.

The utility model discloses a kind of high-speed train bogie axle box with self-lubricating function, including the split type axle box structure being connected with bogie, the axle box structure is divided into upper box and lower box, bearing hole is provided in the center of upper box and lower box, positioning guide mechanism is provided between upper box and lower box, the positioning guide mechanism includes the first locating block being arranged at the top of lower box and the second locating block being arranged at the bottom of upper box, sealing structure is arranged on the contact surface of upper box and lower box, self-lubricating composite gasket and support rail abutment are integrated in the bottom of lower box, oblique spring seat is provided on the lower box, and multiple-stage air spring assembly and hydraulic damper are provided between spring seat and bogie.The utility model split type structure reduces train wheel set replacement time, self-lubricating gasket reduces the friction coefficient between support rail, improves service life, and obliquely arranged air spring dynamically adjusts axle box vertical and lateral stiffness, solves the problem of large friction loss and high maintenance cost of existing axle box.

The invention discloses a four-axle bogie, and relates to the technical field of railway vehicle bogies, the four-axle bogie comprises a framework and a framework supporting component, the framework is a rectangular framework structure, and a traction device is mounted on the framework; the number of the power wheel sets is two, the power wheel sets are symmetrically arranged in the framework, and a driving unit is connected to the power wheel sets; the two driven wheel sets are symmetrically arranged in the framework, the driven wheels are arranged on the outer sides of the power wheel sets and abut against the power wheel sets, and the diameter of the driven wheel sets is smaller than that of the power wheel sets; the braking devices are installed on the power wheel set and the driven wheel set, the axle distance and the total length of the bogie can be reduced, meanwhile, the weight of the bogie is reduced, and the bogie can adapt to locomotives which have low requirements for traction power and traction force but have the requirements for reducing axle weight and reducing the axle distance and the total length of the bogie.

The application relates to the technical field of rotating arm node of high-speed trains, and discloses a distributed coil magnetic sensitive rotating arm node applied to a high-speed train, which comprises a shell, a core shaft and combined elastic bodies, a plurality of combined elastic bodies are arranged between the shell and the core shaft, each combined elastic body comprises two elastic body structures, a first supporting steel ring and a second supporting steel ring and a permanent magnet ring, the permanent magnet ring is bonded between the two elastic body structures, the core shaft is provided with a groove, and a coil is arranged in the groove. In the application, the preparation process of the material is simplified through the arrangement of the magnetic column in the elastic body structure, the magnetic resistance is reduced to improve the magnetic penetration, the thickness of the elastic body is increased, the elastic performance and the safety are enhanced, the structure is simple, the bidirectional adjustment of the node stiffness is realized, the core shaft is provided with a groove, the coil is arranged in the groove, the effective hiding of the coil can be ensured, and the influence of the coil on the axial stress is reduced.

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.

The application provides a primary suspension device, and relates to the technical field of rail vehicles.The primary suspension device comprises two torsion bars and a swing arm installed on a frame.The middle part of the torsion bar is a curved section, and the two torsion bars are arranged in a cross shape and connected to the swing arm correspondingly.The inner end of the swing arm is installed in a swing arm mounting seat, and the outer end of the swing arm is connected to a wheel set through an axle box.The primary suspension device provides suspension stiffness by using the cross-shaped torsion bars, and does not need to use traditional springs, thereby simplifying the structure of the bogie.

A rail vehicle, such as a light rail vehicle, can include a wheel unit and a support unit. The wheel unit can define an axis of rotation of the wheel unit. The support unit can be configured to be connected to a rail vehicle structure that defines a vehicle longitudinal direction, a vehicle transverse direction, and a vehicle height direction. The support unit can be configured to connect the wheel unit to the rail vehicle structure such that the wheel unit is rotatable about the axis of rotation. The support unit can also include a primary suspension unit configured to provide resilient support of the rail vehicle structure on the wheel unit at least in the vehicle height direction.

The embodiment of the invention relates to the technical field of locomotive suspension, and provides an inclined hydraulic rubber composite spring which comprises a seat body, a spring body and a spring body. The first rubber composite spring and the second rubber composite spring are arranged on the seat body and located on the two sides of the mounting part, the arrangement direction of the first rubber composite spring and the second rubber composite spring is defined as the first direction, the arrangement direction of a pair of hydraulic cavities of the first rubber composite spring is in the first direction, and the arrangement direction of a pair of hydraulic cavities of the second rubber composite spring is in the second direction. Each of the first rubber composite spring and the second rubber composite spring is provided with at least one pair of hydraulic cavities; an included angle is formed between the arrangement direction of the pair of hydraulic cavities of the first rubber composite spring and the arrangement direction of the pair of hydraulic cavities of the second rubber composite spring. By means of the technical scheme, the technical problems that in the prior art, a hydraulic rubber composite spring is weak in small-radius sharp turning capacity, and wheel track abrasion is likely to be caused are solved.

The invention provides a three-axle bogie suitable for a shunting locomotive and the shunting locomotive, and relates to the technical field of railway vehicle bogies. The three-axle bogie comprises a rack, a wheel pair, an axle box body, a triangular pull rod and a single pull rod; the rack is provided with a first shaft mounting position, a second shaft mounting position and a third shaft mounting position; the wheel pairs comprise a front-end wheel pair, a middle wheel pair and a rear-end wheel pair; the axle box body comprises a front axle box body, a middle axle box body and a rear axle box body; the triangular pull rod comprises a front-end triangular pull rod arranged between the outer side of the front axle box body and the rack and a rear-end triangular pull rod arranged between the outer side of the rear axle box body and the rack; and the single pull rod is arranged between the middle shaft box body and the rack. Through the optimal configuration, the driving stability of the wheel set is ensured, the transverse force of the wheel rail is reduced, and the abrasion of the wheel is reduced. In addition, the space between the adjacent wheel pairs is effectively released, the axle distance of the bogie is shortened, and therefore the capacity of a vehicle for passing through a small-radius curve is improved.

The present invention relates to a wheel arrangement for a rail vehicle (101), in particular, a light rail vehicle, comprising a wheel unit (107) and a support unit (108), wherein the wheel unit (107) defines an axis of rotation (107.1) of the wheel unit (107). The support unit (108) is configured to be connected to a rail vehicle structure (104) of the rail vehicle (101) defining a vehicle longitudinal direction, a vehicle transverse direction and a vehicle height direction. The support unit (108) is configured to connect the wheel unit (107) to the rail vehicle structure (104) such that the wheel unit (107) is rotatable about the axis of rotation (107.1). The support unit (108) further comprises a primary suspension unit (105) configured to provide resilient support of the rail vehicle structure (104) on the wheel unit (107) at least in the vehicle height direction. The primary suspension unit (105) has a primary suspension transverse rigidity in a direction parallel to the axis of rotation (107.1), wherein a distribution of the primary suspension transverse rigidity across the primary suspension unit (105), in particular, in a static state of the rail vehicle (101) on a straight level track under a nominal load, defines a tilt axis (107.2) of the wheel unit (107) parallel to the vehicle longitudinal direction. The distribution of the primary suspension transverse rigidity is such that, in the vehicle height direction, the tilt axis (107.2) is located below the axis of rotation (107.1).

This application provides a primary suspension system, a bogie, and a rail vehicle. The primary suspension system includes: a base; a receiving cavity within the base, with an opening at the top; a pin cylinder fixedly disposed within the receiving cavity of the base; a connecting pin, the lower part of which is inserted into the pin cylinder, with a rubber spring filling the space between the outer wall of the connecting pin and the inner wall of the pin cylinder; an upper clamping plate disposed at the top of the connecting pin; the upper clamping plate having a pin hole through which the top of the connecting pin passes and is assembled and fixed to the upper clamping plate; and a steel spring sleeved around the periphery of the base, abutting against the space between the upper clamping plate and the base. The primary suspension system, bogie, and rail vehicle provided by this application provide both horizontal and vertical stiffness, meeting the load requirements of the built-in axle box bogie, thereby improving the dynamic performance of the vehicle and enhancing its driving stability and safety.

The application discloses a primary suspension system and a railway vehicle, which comprises a framework, an axle box body arranged on the inner side of a side beam of the framework, a rubber node assembly connected between the top of the axle box body and the framework, used for providing longitudinal and transverse positioning stiffness and releasing vertical stiffness, two steel spring assemblies connected between the top of the axle box body and the framework, and the two steel spring assemblies are respectively arranged on the two sides of the rubber node assembly along the longitudinal direction, used for providing vertical stiffness, and a positioning pull rod connected between the bottom of the axle box body and the framework, used for providing longitudinal stiffness and releasing vertical stiffness and transverse stiffness. The vertical stiffness, the transverse stiffness and the longitudinal stiffness are decoupled, the stiffness in the vertical direction, the longitudinal direction and the transverse direction is respectively realized independently, the primary suspension system has sufficient wheelset axle box positioning stiffness and small vertical stiffness, the critical speed and the ride comfort of the vehicle are ensured, and the high-speed stability and the smoothness requirement of the vehicle are met.

In this truck having a structure in which a motor is directly connected to an axle via a joint, a displacement allowance required for a joint unit is reduced while suppressing an increase in an unspring weight. The truck comprises: a truck frame; an axle including a non-rotary unit that supports the truck frame via an axle spring; a drive unit including a hollow-shaped motor through which the axle is inserted, and a motor bracket which holds the motor and which is supported by the truck frame in a relatively movable state in the upward direction; a joint unit that connects the motor and the axle so as to be capable of transmitting power; and a guide unit that is provided to the non-rotary unit, that abuts against the drive unit when the truck frame is displaced by a prescribed amount or more with respect to the axle, and that restricts the displacement of the drive unit with respect to the axle.

To provide an axle box support device that can ensure sufficient damping force. [Solution] The axle box support device (40, 40A) comprises a first cylindrical body (41), a second cylindrical body (42), a group of permanent magnets (43, 43A), a conductor (44), and a coil spring (45). The group of permanent magnets (43) is held on the circumferential surface of the first cylindrical body (41) and is arranged in a Halbach arrangement along the axial direction of the first cylindrical body (41). The group of permanent magnets (43, 43A) consists of a plurality of first magnets (431) having a magnetization direction in the radial direction of the first cylindrical body (41) and a plurality of second magnets (432) having a magnetization direction in the axial direction of the first cylindrical body (41). At least one of the plurality of first magnets (431) is a large-thickness magnet (431a) having a thickness greater than the thickness of each of the plurality of second magnets (432). The sum of the individual thicknesses of the multiple first magnets (431) is greater than or equal to the sum of the individual thicknesses of the multiple second magnets (432).

The present application relates to the technical field of electronic guide rubber wheel system, more particularly, to a double-axle rubber wheel bogie based on small wheel diameter and a modular multi-unit train.The double-axle rubber wheel bogie comprises: independent suspension assemblies, which are externally connected with a vehicle body; wheel edge drive assemblies, which are respectively installed on corresponding knuckles of the independent suspension assemblies; a double-axle linkage steering mechanism, which transmits the action of a steering gear to a small wheel diameter tire assembly; and the small wheel diameter tire assembly, which is installed on the wheel edge drive assembly and used for bearing running load and providing damping effect.The independent suspension assemblies, the double-axle linkage steering mechanism and the small wheel diameter tire assembly are matched and integrated with transverse-row seats in a passenger compartment to realize the fusion of longitudinal-row seats in the passenger compartment and the wheel package.The present application effectively reduces the floor height of the vehicle through the small wheel diameter design, and improves the problem of the wheel package being conspicuous and improves the comfort experience of passengers through the fusion design of the longitudinal-row seats in the passenger compartment and the wheel package.

The present application relates to the technical field of electronic guide rubber wheel system, more particularly, to a double-axle rubber wheel bogie based on small wheel diameter and a modular multi-unit train. The double-axle rubber wheel bogie comprises: independent suspension assemblies, which are externally connected with a vehicle body; wheel-side drive assemblies, which are respectively installed on corresponding knuckles of the independent suspension assemblies; a double-axle linkage steering mechanism, which transmits the action of a steering gear to a small wheel diameter tire assembly; and the small wheel diameter tire assembly, which is installed on the wheel-side drive assembly and used for bearing running load and providing damping effect. The independent suspension assemblies, the double-axle linkage steering mechanism and the small wheel diameter tire assembly are matched and integrated with transverse row seats in a passenger compartment to realize the integration of the transverse row seats in the passenger compartment with wheel packages. The present application effectively reduces the floor height of the vehicle through the small wheel diameter design, and the transverse row seats in the passenger compartment are integrated with the wheel packages, which improves the problem of the wheel packages being conspicuous and improves the comfort experience of passengers.

The invention provides a bogie landing connecting device which comprises a first vertical shock absorber mounting seat, a first anti-side-rolling torsion bar mounting seat, a first sleeper beam plug-in unit compatible interface, a second sleeper beam plug-in unit compatible interface and a transition plate, wherein the first vertical shock absorber mounting seat and the first anti-side-rolling torsion bar mounting seat are arranged at the bottom of a vehicle body chassis, and the first sleeper beam plug-in unit compatible interface and the second sleeper beam plug-in unit compatible interface are arranged on a sleeper beam of the vehicle body chassis. A second vertical shock absorber mounting seat and a second anti-side-rolling torsion bar mounting seat are arranged on the transition plate; the first vertical shock absorber mounting base is located on one side of the vehicle body chassis sleeper beam in the width direction, the first side-rolling-resistant torsion bar mounting base is located on the other side of the vehicle body chassis sleeper beam in the width direction, the transition plate is connected with the bottom of the vehicle body chassis sleeper beam, and the transition plate is located on the side, close to the middle of the vehicle body chassis sleeper beam, of the first vertical shock absorber mounting base. The transition plate is arranged on the vehicle body chassis with the mounting interface of the bogie with the external axle box, so that flexible interchange of different bogies of the vehicle is realized, the requirement of flexible vehicle use of a line is met, and the operation cost is reduced.

The utility model relates to the technical field of bogies, in particular to a damping bearing structure for a freight train bogie, which comprises a bogie body, a connecting frame and an axle wheel, the axle wheel is mounted on the inner side of the bogie body, the connecting frame is arranged at the top of the bogie body, and a movable damping assembly is arranged on the inner side of the connecting frame. A movable installation assembly is installed on the inner side of the bogie body and comprises an installation box, and an installation groove is formed in the top of the installation box. By arranging the mounting box, the mounting groove, the fixing plate, the inserting block, the spring and the like, through the inserting connection between the fixing plate and the inserting block and the elastic support of the spring, the fixing plate can slide in the mounting groove to conveniently mount and dismount the movable mounting assembly; and therefore, the effect that the damping bearing structure can be conveniently maintained through detachable connection of the movable mounting assembly is achieved.